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Au» 13,1946‘ _ W.‘H'. MARSH ETAL ' 25,45,539 AUTOMATIC FEE-DETERMINING DEVICE Filed Feb. 2, 1943 _ e Sheets-Sheet 1 ' <__ FILL/N6 TANK . . ___.__ E F:______‘j_“__ mfg/Y5” mA/k if" -Wa/ter l7.’ Marsh and Emar Therese/7 .v Aug. 13, 1946. ' w; H. MARSH ‘ET AL 7 Y 2,405,589 AUTOMATIC PREDETERMINING DEVI-‘CE Filed Feb.- 2, 1945 I 6' Sheets-Sheet 5 20/ 20/ I~ 2”> ‘H1249 /34[fly 6 /29 /22 /26 [U] 230 Imn'entors //0 I46 . Walter/i Mars/1 and - ‘Aug. 13, 1946. - W.'H. MARSH ET AL - 2,405,589 ' AUTOMATIC PREDETERMINING DEVICE Filed: Feb. 2, 1943 ' 6 Sheets-Sheet 4 //7- z: I39 Zmventors , l i I 1 I .I Isa-$4.82?‘ . ~ I Wa/z‘er H Mam/1 and V5, O , ' Einar Thoresen B1 Y _ (Itornég Aug. 13, 1946. I r w. H. MARsl-LEr'AL ‘ AUTOMATIC.PREDETERMINING Filed Feb. _2, 194: 2,405,589 DEVICE 6 Sheets-Sheet 5 _ (/77 246 2474 Fly // ---/77 lnventors Wa/z‘er fl Mara/l and Bu finar 77larcsen " ' torneg Patented Aug. 13, 1946 ' 2,405,589 UNITED STATES PATENT OFFICE 2,405,589 ' AUTOMATIC PREDETERMININ G DEVICE Walter H. Marsh, Grafton, and Einar Thoresen, Pittsburgh, Pa., assignors to Pittsburgh Equi table Meter Company, Pittsburgh, Pa., a cor poration of Pennsylvania Application February 2, 1943, Serial No. 474,440 23 Claims. 1 (01. 222—14) 2 _ The present invention relates to dispensing ap rection, and which prior to completion of the delivery in either direction will reduce the rate paratus for delivering a predetermined quantity of-?uid and automatically shutting off the ?ow of ?uid when the desired quantity of ?uid has been delivered. This application is a continuation in part of our application Serial No. 309,196 ?led December 14, 1939 for Predetermining dispens ing apparatus, now United States Letters Patent No. 2,382,454, issued August 14, 1945. In said application there is described and claimed a predetermining delivery or dispensing of ?ow. Another object is the provision of a predeter mining apparatus which will cut off the flow when a predetermined quantity has passed in either direction and which prior to completion of the delivery will reduce the rate of flow, the reduction in rate of flow being accomplished at a predetermined time prior to completion of the delivery regardless of the direction of ?ow. apparatus in which a single register operated by Another object is the provision of a reversing a meter in a flow line actuates a valve means mechanism particularly applicable for use in con in the flow line to ?rst reduce the rate of ?ow junction with a predetermining mechanism. when the predetermined quantity is approached Another object is the provision of a predeter and to shut oil the ?ow when the predetermined mining mechanism having a plurality of flow quantity has passed through the meter, this ac_ stopping mechanisms and an. automatically op tion occurring in either direction of ?ow through erated reversing mechanism synchronized with the flow line. In the present preferred embodi the direction of ?ow for rendering inoperative, ment a plurality of registers are provided driven 20 allexcept a designated ?ow stopping mechanism. by the meter in opposing directions so that when Another object is the provision, in a predeter one ‘register is ascending the other isdescend mining mechanism having a plurality of regis ing, and whichever register is descending actu ters driven in different directions, of an auto ates the valve means to ?rst reduce the ?ow and matically operated reversing mechanism synchro then stop the flow through the flow line. In order 25 nized with said registers. to prevent the ascending register from actuating , The invention will be described in greater de-, the valve and effecting a reduction in the flow tail in connection with the accompanying draw-V rate we provide detention or restraining means to ings wherein is shown a preferred embodiment by render inoperative that portion-of the valve ac way of example and wherein: tuating mechanism which otherwise would co 30 Figure 1 is a side view of a preferred embodi operate with the ascending register at that time, ment of the invention, such detention or restraining means being syn Figure 2 is a vertical sectional View of the chronized with the registers so that when the valve, direction of drive of the registers is reversed and Figure 3 is a top view of the valve latch and the previously ascending register becomes the de 35 pilot latch cocking cam, scending register the detention means shifts to Figure 4 is a side view of the valve and pilot cooperate with the previously descending register latch cocking cam with parts of the valve cas (which now has become the ascending register) ing in section, and render inoperative that portion of the valve Figure 5 is an enlarged side View of the valve actuating mechanism which cooperates with the 40 and pilot latch cocking cam, now ascending register. The means for synchro Figure 6 is a side view of the pilot latch mech nizing the restraining means with the operation anism, ' of the registers is particularly suitable for use Figure 7 is a top view of the pilot latch mech in combination in the predetermining system anism with the top of the case removed, herein described in detail, but it will be under 45 Figure 8 is a section taken on line VIII—VI]I stood that certainsubcombinations thereof are of Figure 9, with part of one plate of the plane applicable to other uses. tary gear frame broken away, Accordingly, it is an object of the present in Figure 9 is a top view of the register and pre vention to provide a predetermining apparatus determining trip mechanism with the outer cas for a flow line which will cut oif the ?ow when 50 ing removed, Figure 10 is a vertical sectional view taken on in either direction of ?ow. line X—X of Figure 9, showing the upper register Another object is the provision of a predeter at a tripping position, a predetermined quantity has been passed through mining apparatus which will cut off the ?ow when a, predetermined quantity has passed in either dig ‘ Figure 10a is a side View of a detail in posi 55 tion corresponding to Figure 10, 2,405,589 4 3 Figure 11 is a vertical sectional view taken on line XI--XI of Figure 9, showing the upper regis ter at a tripping position and the upper weight dropped, Figure 12 is a vertical sectional view similar to Figure 11 showing the positions of the parts at the commencement of the reverse cycle of oper sage 53 is provided in the boss 45 which connects with the bore 48. In closed position of the valve, ?uid pressure from inlet chamber 55 is trans mitted through bores 22 and through bores 5|, 52, 48 and 53 to the interior bore 15 of the valve guide and thus tends to maintain the two valves I1 and 21 on their seats. When valve member I‘! is opened so that shield [5 covers bores 22 and ation, Figure 13 is a vertical sectional view similar to Figure 11 showing the parts at the end of the re- ' verse cycle with the lower register in tripping po sition and the lower weight dropped, and Figure 14 is a side view of a detail. Referring to the drawings (Figure 1) there is 53 the pressure from chamber 55 is communicat ed to the interior of sleeve I9 through passage 5%, connecting with bore 53, the holes 22 being closed by the sleeve M in this position. The holes 22, provide an additional communication between the chamber 55 and interior of sleeve IS shown in outline a ?uid flow responsive means 1.5 in closed position to hold the large valve on its such as liquid meter I preferably capable of measuring flow in either direction, having con nections 2 and 3 which may serve as an inlet or outlet, depending on the direction of flow. seat. The throttle pin 4'! has a kerf 51 in its end by which it may be rotated to vary the ex tent of registration of bores 51 and 52 and thus control the flow therethrough and cover 58 is The arrows in Figure 1 show the flow of water 20 provided to conceal the end of the pin. The operating stem 51 (Figures 2 and 4) ex tends through the cover 39 and at its interior end tion and the flow of water from the tank during has a squared portion 62 to receive a bifurcated the operation of ?lling the tank with fuel. The operating arm 53. A link 54 is received in the preferred type of meter is that described and claimed in Patent No. 2,274,206, issued Febru 25 bifurcation and is secured in place by a kerfed headed pin 65 and cotter pin 66. The opposite ary 24, 1942, to Walter H. Marsh. endof link 64 is retained in position by pin 68 The register case 4 has an indicator or counter and cotter pins 69. The operating stem 6| ex 5 to show the ?ow of fuel out of the tank and tends through a stuf?ng box ‘H in the cover of an’ indicator or counter 6 to show the ?ow of any suitable construction which may be lubri water into the tank. 'The housing 1 contains cated by a suitable grease ?tting 1'2, the stuffing suitable power transmission means between the into the tank during the fuel dispensing opera meter and register. ' Value The valve is a modi?cation of‘. that described and claimed in our application, Serial No. 309, 196, ?led December 14, 1939, for Predetermining dispensing apparatus, and it is here only briefly described. A valve casing, indicated generally by the numeral 8 (Figure 2) is connected to one side ofthe meter and has an internal shoulder 9 providing an ori?ce ll therethrough, and a ta pered seat l2 surrounds the ori?ce. A valve sleeve or guide [4- is provided preferably integral box being closed by a cap '13 having a projecting plate 14 which engages a flange 79 of the oper ating stem to prevent its accidental removal. The outer end of the operating stem BI is squared and carries an operating handle 15 by which the valve may be opened manually and a weight lever 76 suitably held on the stem has arod 18 pivot ally depending therefrom and supporting the 40 weights 19. A cam 82 (Figures 3, 4 and 5) is secured to the outer end of stem BI ‘and has a curved cam track 83 extending around its periphery on its upper surface. This cam preferably is made up of two with the casing and has a core l5 in which is parts comprising the weight lever 16 and a part located the sleeve l6 of large valve member l1. 82A which carries the cam track! the portion 82A Valve member ll has a washer or the like l8 of having a hub 84 received in a suitable bore in relatively soft material such as “neoprene” held portion 16 and locked thereto by a set screw 86 thereto by means of a retaining nut, l9 threaded in adjusted position and additionally held by set on an extension 2! thereof. The sleeve It has _ screws 11. Set screws 81 hold the cam assembly a plurality of bores 22 therein which in closed on the valve shaft Bl. position of the valve are uncovered by the guide A bracket BI is secured to the valve cover and l4, and in open position of the valve are adapted has a pin 92 passing therethrough and through tov be covered by this guide. The valve member the yoke 93 of pilot latch cocking handle 94, I‘! has a bore 24 therethrough terminating in , whereby it is pivotally secured to the bracket, an internal tapered valve seat 25. A counter and the cooking handle has an extension 95 hav bore 28 provides a guide to receive a second ing a pin 95. secured therein upon which is jour smaller or pilot valve 21 movable therein andv nalled a roller 9‘! adapted to operate on the top carrying a soft seat member 28 of “neoprene” or edge of cam track 83. A quadrant shaped exten the like clamped in place by a. ?anged bushing sion or latching piece 98 extends from the yoke 29 and a screw 3.!_. Posts 32 extending from the into the path of the cam, and is depressed below interior of valve member ll enclose a spring 33 the plane of cam 82 when handle 94 is at the which at one end engagesv a shoulder 34 on small right. Bracket 91 has an extension having a er valve 21 formed where the stem 35 is joined hole l?l therein providing a guide for a relatively thereto and at the other end engages a bushing heavy impact rod I92 which is longitudinally 36 held on the post 32 by screws 31 or other suit movable therein. Spring I02’ is secured at one able means to hold the small valve on its seat. end to a pin I63 in the rod 102 and the other The end of the casing is closed by a cover 39 end is fastened in a suitable hole in handle 94, held thereon by bolts 4! or the like with agasket 4'2 interposed between the casing and cover, An interior boss 45 in the valve casing has a transverse bore 46 in which is rotatably located a throttle pin 4‘! having a bore 48 therein, the end hole I 9-! being slotted at the top to allow the spring NZ’ to pass. Thus, spring, I02’ urges the boss Hi5 on handle 94 against the end of rod I 82 so that the handle and rod are yieldingly of the pin‘ extending through a‘ stu?ng box 4.9. A longitudinal bore iii in the boss registers with constrained to move together. A second spring the transverse bore 52 in the; pin 41-, and a pas its other end secured in a hole I98‘ in bracket 9|“ Hl?'is secured to a pin 'lll'l in rod £02 and has 2,405,589 5 whereby rod I02 is biased to the right ‘as seen ‘ in Figure 4. The under surface of cam 82 pro vides a locking edge I I I on the portion ‘I6, and a second locking edge H3 is provided adjacent the surface H2. By adjusting the two parts ‘I6 and 82A the arcuate spacing between edges III, and H3 may be adjusted. When operating handle and spring I02’ biases handle 94 ‘and latch piece‘ 98 upward to engage the cam edge III and arrest movement of cam 82 and stem 5| with the small valve 21 in the open position to allow a reduced flow through the valve. When bar I02 is again released by the pilot latch the small valve 21 is released and closes by action of spring 33 and ‘I5 is turned counterclockwise, as viewed in Fig fluid pressure to shut oif ?ow through the meter. ure 3, against the action of weights ‘I9 (and ?uid Pilot latch pressure) to open the valve means, the elevated 10 cam track 83 passes under roller 91, thus pivot The pilot latching mechanism at the register ing cocking lever 94 to the left about its pivot 92 to the position shown in dot and dash line in Figure 4, and boss I05 on lever94 pushes rod I02 to the left or potential position against the biasing spring I06, in which position rod I02 is retained by pilot latching mechanism at the reg ister that will be later described. At the same time link 64- connected to arm 63 on stem 6| is described and claimed in Patent No. 2,247,139, issued June 24, 1941, to Einar Thoresen and George J. Genung, and now will be brie?y de scribed. A cup-shaped latch case H0, (Figures 6 and 7) encloses the pilot latching mechanisQ’m and has a cover plate I I3 held in place by suitable screws I I4. The bottom of the case carries a bent release plate H6 which is pivoted on the line of draws valve 21 to the right against thebiasing 20 bend by two headed‘pins Hi, the plate being spring 33 and ?uid pressure to open valve ori?ce shown in one eXtreme position in Figure 6. Re‘ 24 and allow a small flow therethrough, this ?ow lease plate I I6 has a hole in one corner providing coming through openings 22 and through aligned knife edges H9, and a hole I29 in the bottom bores 5|, 52, 48 and 53. The latching piece 98 of the latch case allows the lower end of tube I22 now lies under cam 82 in the path of locking edge III and if handle ‘I5 is released after cam edge III passes latch piece 98 the valve means to pass therethrough with its bottom resting on the knife edges H9 which provide bearing edges therefor. A pin I23 passing through holes I 24 will be held in partly open position bythe en in the latch case has its lower end resting .on the gagement of edge III with latch piece 98, that oifset right hand side of the release plate and an is, large valve I'I will remain closed and small 30 elongated weight I25 loosely pivoted at one end valve 21 will be latched or retained thereby in by headed pins I26 rests on pin I23 thereby hold-y open position. If handle ‘I5 is further rotated in ing plate H3 in the position shown in Figure ‘6. the same direction the sloping face II2 depresses The top plate I I3 has fourguide posts I29 riveted latching piece 98, the spring I02’ allowing han thereto which have heads at their upper ends and the thin disk or floating plate |3| is held by tube dle 94 to move away from latched rod I02, until the cam edge H3 has passed the latching piece I22, release plate II6, pin I23 and Weight I25 in 98 whereupon the latching piece is elevated by elevated position against the heads of posts I29. ' Plate I3I has holes loosely ?tting the guide posts the action of spring I02’ into the path of cam so that the plate is capable of universal tilting edge H3. This further rotation of stem 6| in the meantime compressed spring 33 until large 40 movement about any post. The upper end of tube valve I‘I opened, the opening of the large valve I22 may be cut away to provide ?ngers or prongs I34 to act as bearing points. being facilitated by the relieving of the pressure within sleeve I6 due to opening of the small valve. Case H0 is cut away to receive a slide bar I33 Now when handle ‘I5 is released the latching piece having a stop pin I39 to limit movement thereof 98 is engaged by edge H3 and thus prevents re to the right. Slide bar I38 is secured to bar I92 (Figure 4) by a pin I4I passing through a slot I42 turn rotation of the cam and stem 6|. Thus the large valve I'I becomes latched in fully open in the end of bar I 92, and a piston I43 in the position so that flow can now occur directly from bore I45 is urged by spring I44 to the left to ab~ '' chamber 55 through valve ori?ce II. In the full sorb any shock. Bar I38 is cut out at its bottom, open position the guide sleeve I4 covers bore 22 50 as indicated at I 46 (Figure '7) and has a roller I49 journalled on a pin I4‘! therein. A curved and sleeve I6 covers bore 53, but communication lever I5| pivoted on headed pin I52 is riveted to between chamber 55 and the interior of sleeve I6 the bottom of the latch case and has a cocking is maintained through bores 5|, 52, 48, 53 and tail I53 adapted to enter recess I46 in the path of slot 56. When bar I02 is released by the pilot latching 55 roller I48. Adjacent the tail I53 the lever is cut out at I54 to provide a retaining shoulder I54a. mechanism (which has not yet been described) Upon sliding motion of the bar I38 to the left the it strikes boss I05 and pivots lever 94 to the roller I48 engages tail I53 to pivot lever I5I about right thus depressing latching piece 98 out of the the pin I52, and the roller I56 on pin I57 at the path of edge I I3 to release cam 82 and valve stem 6| for rotation, and large valve I‘I starts towards 60 other end of the lever engages tail I65 of lever I58 adjacent the arcuate notch I64 to pivot this closed position under the in?uence of the weights lever about its fulcrum pin I 6|, and in turn roller ‘I9 and the di?erential pressure communicated I63 on pin I62 engages tail I68 adjacent arcuate to the inside of sleeve I6 through the passages notch I61 of lever I65 to pivot this lever about 5|, 52, 48, 53 and 56. By adjusting throttle pin 41 the rate of ?ow through this bypass into sleeve 65 its fulcrum I66. A detent pin I70 is riveted or otherwise secured to one corner of release plate I6 may be regulated to obtain the desired clos H6 and extends with a loose ?t through a suit ing rate of the large valve, and when openings 22 able hole in the bottom of’ the latch case into the become uncovered near the end of the closing operation, a greater area is thus opened to provide path of lever I65. This pin has a ?at side portion a greater pressure to hold the large valve 2'! 70 at its end adapted to engage the end I69 of lever I65, and the opposite side of the pin is cut on closed on its seat. In the meantime as cam 82 a bevel. ' rotates clockwise the elevated track 83 rides un When bars I02 and I38 are moved to the left by der roller 91 to push lever 94 and rod I02 again operation of cooking handle 94, or of operating to ‘the left where rod I02 is again latched by the pilot latching means located at the register, 75 handle ‘I5 aspreviously described, roller I48 (Fig 2,405,589 7 8 ure 7) engages tail I53‘ to rotate leverv I5I clock wise and roller I55 engages tail I65 to rotate lever I58 counterclockwise while roller I63 engages tail I68 to rotate lever I65 clockwise until the end I69 engages the bevel surface of pin I18 depress ing it to allow the lever I65 to pass thereover, wheels in geometrical progression. The ?rst or fractional wheel‘cam 226 (Fig. 11) has a modi ?ed notch 221 diametrically opposite the eight and the cam is cut away to provide a shoulder 228 on the opposite side from the side of notch 208 that is cut away. The numeral wheels of the registers may be set individually by‘ means of notches in slidable register shafts I92 and I98 I23 against plate II6 to prevent reverse move cooperating with internal pawls in the register ment of this lever. Movement of bars I38 and I82 10 wheels, and as the direction of rotation of the to the right thus is prevented by roller I88 en lower register is reverse to that of the upper reg gaging the shoulder I54a which biases lever I5I ister the internal ratchets of the lower register counterclockwise to bring roller I56 into engage are reverse from those in the upper register. This ment with arcuate notch I54 and biases lever I58 construction is disclosed in Patent 2,247,139 and clgckwise while roller I63 engaging notch I61 need not be illustrated here. The register wheels biases lever I65 counterclockwise against retain are set individually by grasping the knobs 229 or ing pin I10. ' 238 (Figs. 1 and 9) on shafts I92 or I98, posi Tripping of the pilot latch is accomplished by timing the shafts longitudinally, and rotating the depressing plate I8I (Figure 6) which depresses shafts. tube I22 and pivot plate II 6 to depress pin I18 20 A shaft‘2l3, (Figs. 9 and 10) carries a yoke 2I4 out of the path of the end of lever I65. This in which is secured a roller shaft 2I5 upon which allows sui?cient rotation of the various levers to are journalled the rollers 2I8, one roller being bring the retaining shoulder I 54a out of the path provided for each cam 285 and for cam 281. A of roller I48 to release bar I38, and ‘bar I38 moves weight 2I1 is suitably secured to yoke 2M and to the right under action of spring I88. adjacent its outer end carries a rod 2I8 depend ing from a’pivot pin 2I9. A shaft 233 carries a Predetermim‘ng register yoke 234 in which is secured a roller shaft 235 and rollers 236 are journalled thereon, one roller A vertical shaft I15 (Figs. 8 and 9) driven by being provided for each cam 222 and 228. A the meter is journalled in a suitable bushing in cross bar I76 secured between the side plates I11 30 weight 231 is suitably secured to yoke 234 and adjacent its outer end carries a rod 238 depend of the register frame, and carries a vspur gear I18 ing from a pivot pin 239. A guide 2M (Figs. 9 meshing with a similar spur gear I19 on shaft I8I. and 10) is secured to bottom bar I16 to guide Shaft I8I carries a bevel gear I82 meshing with rods 2I8 and 238 for vertical movement. a bevel gear I83 on shaft I84, and a spur gear The operation of the apparatus so far described I85 is secured to this shaft and is thus rotated now will be explained. Referring to Figure 8, by drive shaft I15. Gear I85 meshes with gear when the lower register is driven in the direc I86 on shaft I81 which in turn meshes with gear tion indicated by the arrow, it will be rotated by I88 on shaft I89 which in turn meshes with the gears I85, I86, I88 and I9I until all the notches lower register driving gear I9I on register shaft I92. Gear I86 also meshes with a gear I93 on 40 223 (Fig. 10), and the ?rst notch 221 (Figure 13) are in alignment, whereupon rollers 236 fall into shaft I94 which in turn meshes with a gear I95 the notches and thus allow yoke 234 to pivot on ‘shaft I98 which in turn meshes with the upper and drop weight 231 to depress rod 238 and thus register driving gear I91 on upper register shaft depress trip plate I3I (Fig. 6) to actuate the pilot I98. It will be noticed that the register gears latch mechanism, and release bar I38. When the I9I and I91 are thus driven in opposite directions. upper register is driven in predetermining direc In each of the registers shown, the ?rst driven tion (which is opposite the arrows of Fig. 8) and numeral wheel represents fractional units, for all the notches 286 and ?rst notch 288 are in example, gallons, and the last wheel represents alignment (Fig. 11) the rollers 2I6 are allowed ten thousands. As the upper and lower registers are of like construction only the upper one will 50 to fall into the notches and thus allow yoke 2M to pivot about its pivot 2I3 and drop weight 2I1 be described in detail. It comprises a plurality carrying clown rod 2I8 to depress pilot latch plate of numeral wheels 28I (Figure 9) each, with eX I3I (Fig. 6) and thus release bar I38. Thus it ceptions hereinafter pointed out, having a cam will be seen that whichever counter is rotating 205 with a notch 286 (Figure 9) in its periphery. in descending direction trips the pilot latch mech The ?rst or fractional numeral wheel cam 28‘! has and immediately pin I18 is elevated into the path of lever I65 by the action of weight I25 and pin a notch 288 (Figure 11) which may be located diametrically opposite the zero number and pref anism when zero is indicated thereon. The mech anism thus far described therefore may be em ployed to release the predetermining valve at zero erably is cut away to provide a shoulder 289. How when the predetermined quantity of ?uid passes ever, I prefer to locate this notch diametrically opposite the numeral eight so that overriding of 60 through the meter in either direction. Or by suit able location of the notch or notches in the cams this wheel will not cause rotation of the units wheel. Preferably the cams of the wheels from of each counter or of one counter only it may the units wheel to the final wheel are of gradu be employed in a recycling operation to actuate the valve repeatedly when a predetermined quan ally increasing diameter, and transfer pinions 2II on shaft 2I2 provide for intermittent move tity flows through the meter in one direction, ment of the series of wheels in geometrical pro The mechanism for pretripping the valve gression in known manner, for example, as de means prior to completion of the ?nal dispensing operation now will be described. scribed and illustrated in said Patent No. 2,247, 139. The lower register is of similar construction Cam 285 of the tens numeral wheel of the up and has its plurality of numeral wheels 22I, (Fig. per counter has an additional notch 248 (Fig; 9a) 10) each, except as hereinafter described, carry which may be called a pretripping notch and ing a cam 222 with a notch 223 in its periphery, serves, when aligned with the notches 206 of the diametrically opposite the zero on the numeral other wheels and notch 208 of the first wheel, to wheel and transfer pinions 23I on shaft 232 pro trip the pilot latch mechanism at a point prior vide for intermittent movement of the series of. to the tripping action of ?nal notch .286 in the 2,405,589 9 10 tens wheel. Thus, where the presetting notch aligned with the other notches of the lower counter in the ascending operation of the counter. 246 is diametrically opposite the eight on the The positioning of the arms 246 and 25l is syn chronized with the counters so that each time the tens wheel, pretripping will occur when the upper counter reads eighty. This notch may be located at any position on the tens wheel,‘ or at any po sition on any other wheel as desired, and will direction of operation of the meter changes the proper arm moves under the weight of the as serve to pretrip the pilot latch, and the pilot latch cending counter to prevent that counter from in turn trips the valve latch and allows the large tripping the pilot latch when the presetting notch valve to close, while the small valve remains open, thereof becomes aligned with the other notches and the pilot latch is recocked as previously de 10 of that counter, and this synchronizing means scribed, until the ?nal notch 266 of the tens now will he described. wheel aligns with the notches 266 of the other Shaft 164 (Fig. 9) carries a pair of sun gears wheels and notch 268 of the ?rst wheel toagain 255 and 256 secured thereon to rotate with the trip the pilot latch and. release the small valve. shaft. The shaft also carries a frame 266 com The lower counter has a similar pretripping notch prising side plates 25‘! and 258 secured together 240' on the tens wheel for a similar purpose, and by screws 259 and spacers 26!, this frame being this pretripping notch also may be located at any journalled to idle upon shaft I94. Journalled on position on the tens wheel or on any other wheel in any position as desired. Each counter there suitable shafts 262 and 263, mounted in the frame 266 (Fig. 8) are a pair of gears 264 and 265 which fore, when operated in descending direction, will 20 are in mesh with the sun gears 255 and 256 re trip the pilot latch at eighty and at zero. spectively. The rotating frame structure 266 and The registers show the contents of the tank, planetary gears carried thereon is made rather and assuming twenty thousand gallons of fuel are heavy and to increase the weight of this struc _to be dispensed from the tank, the lower or wa ter counter at the beginning of the operation ture the gears 264 and 265 are cut from bar stock allowing a cylindrical drum or hub 266 to ex tend therefrom and in order to counterbalance the weight of these gears additional idler gears counter may be said to operate as a positive or 264' and 265' are provided diametrically oppo site gears 264 and 265 and in mesh with the additive counter, while the fuel counter may be said to operate as a negative or subtractive count 30 respective sun gears. External stops 261 and 268 er. The fuel is discharged by forcing water into (Figs. 8 and 9) are provided extending inwardly the tank, and when eighty gallons of water have from the register side plate H1 and located to been introduced into the tank (that is, eighty engage an extension 266 projecting from the side gallons of fuel have been dispensed) the water plate 25‘! of the rotary frame. A segmental'stop counter will have ascended to eighty and the fuel member 215 (Figs. 9 and 14) on a hub 216 is will read zero while the upper or fuel counter will read twenty thousand. Therefore, the water secured to shaft 245 and has two edges 21'! and counter will have descended to 19,920 at which point the pretripping notch 249' of the ascending water counter would trip the pilot latch unless 218 that cooperate with a pin or stop 219 in the register side plate I11 to limit rotation of shaft 245 to about 180°. Shaft 245 carries two seg mental gears 211 and 212 (Fig. 9) disposed in a certain relation to arms 246 and 252 and stop member 215. The operation of the apparatus now will be de scribed. Commencing with the parts in position shown in Figure 10, the upper counter is oper ating in descending direction and the sun gear 255 on shaft [94 is rotating counterclockwise and by its engagement with the planetary gears it biases the frame 266 in a counterclockwise direc tion with stop pin 269- on the planetary frame against upper stop pin 268. In this position upper planetary gear 265 is separated from and is out of mesh with segmental gear 212 while lower planetary gear 264 is adjacent segmental gear 2'“ weight 231 having rotated arm 25I and shaft 245 beyond dead center until edge 21‘! of stop member215 (Fig. 10a) was brought into engagement with stop pin 219 thus arresting fur means were provided to prevent this tripping. And conversely, if the tank is to be ?lled with’ fuel, the water counter will read twenty thou sand at the commencement of the ?lling opera tion, and when eighty gallons of water are dis charged from the tank (due to introduction of eighty gallons of fuel) the fuel counter will be at eighty and the water counter will be at 19,920 and thus the pretripping notch 246 of the ascend ing fuel counter would trip the pilot latch unless means were provided to prevent this tripping ac tion. The water counter now operates as a sub tractive or negative counter while the fuel counter operates as an additive or positive counter. This pretripping action when the register is ascending is not desired for certain purposes and I there fore prefer to provide a cut out, shield or guard to prevent this pretripping action except when the register is descending, as will now be de scribed. A shaft 245 (Figs. 8, 9, 10, and 11 to 13) car ries two arms 246 and 251 secured to rotate there with, and each carries a roller 24'! and 252 re spectively at its end. In Figures 8, 9 and 13, the arm 246 is shown in its upper position with the roller 24'! projecting under and supporting weight 21‘! to prevent the weight dropping when the presetting notch becomes aligned with the other notches of the upper counter in the ascending operation of the counter. Lower weight 231 carries an extension 242 (Figs. 8 and 11) having a projecting portion 243, and when shaft 245 is rotated to the position shown in‘Figs. 9 to 12 the arm 25! assumes the upper position with the roller 252 extending under projecting portion 243 and thus supports lower Weight 231 to prevent it dropping when the presetting notch becomes ther rotation of shaft 245 so that roller 252 'on (30 ' arm 251 is supporting weight 231, and segmental gear 211 is held with its last tooth out of mesh with planetary gear 264. When eighty is reached on the upper register in descending direction the presetting notch 246 (Fig. 16) becomes aligned with the other notches 266 of the'higher numeral wheels and when fractional wheel 26l reaches the eight position the notch 268 thereof becomes aligned (Fig; 11) and rollers 2l6 enter the aligned notches and allow weight 2|‘! to drop while lower weight 23‘! remains elevated. Rod 218 descend ing with weight 2|‘! depresses plate l3! (Fig. 6.) to release bars I38 and I62 (Fig. 4) and under the bias of spring I66 the bar I62 rocks cocking handle 94 to the right to depress latching piece 98 out of the'path of cam. edge H3 whereby the 2,405,589 11 cam and shaft‘ 6| are released for rotation to allow the large valve (Fig. 2) to commence its closing operation. The rotation of the cam causes cam edge 83 (Fig. 4) to pass under roller 91 and thus cocking lever 94 is forced to the left to move bars I62 and I38 to the left while latch ing piece 98 rises into the path of cam edge HI to stop further rotation of. shaft 6| and thus re tain pilot valve 3‘! in open position. The rate of rotation. Weight 231 now is free to drop while upper weight 2I'I is supported by roller 24? on arm 246. When the lower register descends to 19,920‘ the upper register will be at eighty, which is a pretripping position, but tripping of the pilot latch in this position will not occur because the upper weight is held supported by roller 24?. When the lower register descends to eighty the pretripping notch 240' thereof becomes aligned closing of the large valve may be regulated by 10 with the notches 223 of the higher wheels and adjustment of throttle pin 4'! and by adjusting when the fractional wheel cam reaches eight the the two parts ‘I6 and 82A of the cam the angu ‘notches are all aligned and the lower weight is lar distance between the locking edges H3 and allowed to fall as shown in Figure 13 in broken lines to trip the pilot latch and release the large I II may be varied. Meanwhile, upon continued rotation of shaft I94 (Fig. 11) the fractional 15 valve as previously described. The lower weight wheel cam 26'! continues to rotateuntil the 209 is then raised by notch shoulder 228 as the lower of notch 208 engages a roller 2I6 and raises the register continues to rotate until the zero posi~ weight 2!‘! thereby elevating rod 2I8 away from tion is reached on the tens wheel and the frac plate l3I (Fig. 6) to allow the‘ pilot latch mech tional wheel reaches eight whereupon the lower anism to relatch bar I38. The Weight 2I'I con 20 Weight is allowed to drop to trip the pilot latch tinues to be held elevated until the zero position and close the small valve as previously described of all the wheels is reached where all the‘ notches in connection with the upper counter. 206 are aligned and the eight position of the It will be understood that the invention is not fractional wheel is reached where cam notch 208 limited to the provision of large and small or pilot is aligned therewith whereupon weight 2!? and 25 valve means, for where the rate of flow is small rod 2I8 are again allowed to drop and trip the enough the pilot valve may be omitted. Or, by pilot latch to release bars I38 and I62 as pre suitably locating the presetting notch or em viously described. Again cocking handle 84 (Fig. ploying more than one presetting notch the ap 4) is forced by bar I02 to the right to bring paratus may be employed to dispense a suc latch piece 98 out of the path of cam edge II I 30 cession of equal or unequal predetermined quan to release the cam and shaft 6| for turning so that pilot valve 31 can close, the large valve I‘I meanwhile having reached closed position. The titles, and for this purpose any desired number of locking edges may be employed on the valve latching cam in conjunction with a suitably lag between release of the pilot valve and com plete shutting o? of the flow is compensated for modi?ed cam having peaks between such edges. Also, if desired, the pilot latch may be employed by having the fractional cam notch 208 oppo to directly hold the valve means open, thus omit ting the valve latch cam. Various other modi? cations may be made in the invention, and ac site the eight so that by the time completeshut off occurs the fractional wheel of the upper reg ister will have moved around to the position shown in Figure 12‘. cordingly the above description is intended to be illustrative merely. Now, when the direction of rotation of the What we claim as our invention and desire meter is reversed so that the lower register commences to move in descending direction gears to secure by Letters Patent is: 1. In a predetermining dispensing apparatus, a ?uid flow responsive device operable by flow of fluid therethrough in either direction, a single valve means controlling flow of fluid in both di rections, a valve latching mechanism, a pair of I85, I86, and I93 (Fig. 8) rotate shaft I94 clock wise and sun gear 256 engaging gear 265 rotates the planetary frame 266 clockwise to move plane tary gear 264 out of the path of segmentalgear 2H and bring planetary gear 265 into mesh with valve latch tripping means driven by said device, segmental gear 212 as shown in Figure 12, at and means operatively controlled by said device which point further rotation of frame 260 is ar 50 for selectively rendering one or the other of the rested by lower stop pin 26‘I engaging pin 269, said valve latch tripping means inoperative de and planetary gear 265 begins to rotate. The pending on the direction of flow of ?uid through meshing of gears 265 and 212- causes gear 212 the device to allow one tripping means to be operative. and shaft 245 to rotate thus moving arm and roller 252 away from extension 243 and bringing 2. In a predetermining dispensing apparatus, a ?uid ?ow responsive device reversibly operable arm and roller 24'! under weight 2 ll to lift weight 2|‘! until just beyond dead center as shown in by fluid flow in opposite directions, valve means controlling fluid flow, a valve tripping mechanism, dot and dash lines in Fig. 13, whereupon the a plurality of predetermining means driven by weight 2 I‘! rotates arm 246 and shaft 245 slightly to the full line position which moves the last 60 said device for actuating said valve tripping mechanism, restraining means for rendering all tooth of segmental gear 212 out of mesh with but one of said predetermining means inoper planetary gear 265 as in Figure 13, in which posi tion shaft 245 is stopped by the engagement of ative, and means actuated by said meter for po sitioning said restraining means whereby one edge 218 against pin 21!! as shown in Figure 14. In the meantime the upper fractional wheel cam 65 predetermining means is rendered operative when said device is operated in one direction and is 20‘! has been rotated from the full line position rendered inoperative when said device is oper shown in Figure 12 to the broken line position. ated in the opposite direction. That is, the reversal of arms 246 and 25I and rotation of segmental gears 2H and ‘N2 occurs while cam 20‘! is moving from the full line to the dotted line position. It now will be apparent that the cut away part of notch 268 allows the cam 20‘! to rotate without interference from roller 2I6, whereas if notch 268 were not cut away the roller in this notch might lock the register against 3. In a predetermining dispensing apparatus a reversibly operable ?uid flow responsive device, a valve tripping mechanism, predetermining means controlled by said device and operable in one position thereof to actuate‘said valve trip ping mechanism, relatively movable restraining m€ans for restraining said predetermining means 2,405,589 13 14 in said position, and means operatively connected with and positioned by said device when operated 'ond trip member, a second means operated by said shaft'adapted to cooperate with said second in one direction for placing said restraining means out of restraining position and for placing trip member, means shifting said frame in one’ direction to bring one of said pair of gears into said restraining means into restraining position Cl meshing relation with said ?rst gear, means for when said device is operated in the opposite di rotating said meshing shiftable gear to move said ?rst means out of restraining position and said rection. 4. In a predetermining dispensing apparatus, a ?uid ?ow responsive device, a plurality of trains of predetermining cams operatively con nected with and driven by said device, and the came in each train having notches adapted to become aligned when a predetermined ?nal second restraining means into restraining posi tion for said second trip member, means to dis engage said ?rst gear from said shiftable gear, means to move said second gear into the path of said other shiftable gear, and means for shift quantity of ?uid has passed through said device, ing said frame in the opposite direction to bring said other shiftable gear into mesh with said sec a valve tripping mechanism, one cam of each ond gear. train having a presetting notch, a corresponding 8. In combination, a latch mechanism, a trip mechanism, a shaft, means operated by said shaft to render said trip mechanism inoperative, a gear on said shaft, a shiftable gear movable into and out of meshing relation with said ?rst gear, plurality of sets of feelers independently operable to actuate said tripping mechanism, each set of feelers adapted to cooperate with one train of cams when all the cam notches in said train are aligned to actuate said valve tripping mecha nism, means biasing said sets of feelers toward said cams, relatively movable restraining means for each set of feelers, and means driven by said device operatively connected with said restrain ing means to position the same selectively in co operative relation to one set of feelers and pre vent actuation of the valve tripping mechanism thereby. a second gear on said shaft, a second shiftable gear movable into and out of meshing‘relation with said second gear, a second trip member, a second means operated by said shaft adapted to cooperate with said trip member, means rotating said ?rst shiftable gear when in mesh with said ?rst gear to rotate said shaft and move said ?rst means out of restraining position for the ?rst trip 5. In combination, a latch mechanism, a trip mechanism and said second means into restrain ing position for the second trip member, means to mechanism, a shaft, means operated by said shaft to render said tripmechanism inoperative, disengage said ?rst gear from the ?rst shiftable gear and move said second gear'into the path a gear on said shaft, a second gear on said shaft, of the second shiftable gear, and means for ac a frame carrying a pair of shiftable gears adapted to be moved into and out of meshing relation to ‘ said ?rst mentioned gears respectively, a second tuating said shiftable gears. trip member, predetermining means to release said second trip member for tripping said latch mechanism, a second means operated by said shaft adapted to cooperate with said second trip member, means shifting said frame in one di rection to bring one of said pair of gears into meshing relation with said ?rst gear, means for rotating said meshing shiftable gear to move said ?rst means out of restraining position and said second restraining means into restraining posi tion for said second trip member, means to dis engage said ?rst gear from said shiftable gear, means to move said second gear into the path of said other shiftable gear, and means for shift~ ' ing said frame in the opposite direction to bring said other shiftable gear into mesh with said second gear. 6. In combination, a shaft, a plurality of arms on said shaft, a gear on said shaft, a second gear ‘ ' 9. In combination, a latch mechanism, a trip mechanism, a shaft, an arm secured to said shaft restraining said trip mechanism to render the same inoperative, a segmental gear secured to said shaft, a second shaft adapted to be rotated by a fluid pressure responsive device, a sun gear on said second shaft, a freely rotatable frame journalled on said second shaft and carrying a planetary gear meshing with said sun gear, a sec ond latch trip mechanism, a second arm on said ?rst shaft out of engagement with the second trip mechanism, stop means for said frame to stop ro tation thereof when said planetary gear comes into mesh with said segmental gear, whereby said segmental gear is rotated to rotate said ?rst arm away from restraining position of the ?rst trip mechanism and said second arm into restraining position for the second trip mechanism to render the same inoperative, separate predetermining mechanisms for each trip mechanism adapted to be actuated by said device, one of which releases the ?rst trip mechanism to trip said latch when on said shaft, a frame carrying a pair of shiftable a , predetermined quantity flows through said gears adapted to be moved into and out of mesh ing relation to said ?rst mentioned gears respec device. tively, means shifting said frame in one direc 10. In a p-redetermining mechanism, a latching tion to bring one of said pair of gears into 60 mechanism, a latch trip mechanism including meshing relation with said ?rst gear, means for feeler means, a shaft, an arm secured to said rotating said meshing shiftable gear, means to shaft and supporting said latch trip mechanism, disengage said ?rst gear from said shiftable gear, a stop limiting movement of said arm, a segmen means to move said second gear into the path _, tal gear secured to said shaft, a second shaft adapted to be rotated by a ?uid flow responsive of said other shiftable gear, and means for shift? ing said frame in the opposite direction to bring device. a sun gear on said second shaft, a freely said other shiftable gear into mesh with said second gear. 7. In combination, a latch mechanism, a trip rotatable frame journalled, on said second shaft and carrying a planetary gear in mesh with said sun gear, stop means for said frame to stop rota tion thereof when said planetary gearcomes into mesh with said segmental gear, whereby said seg mental gear is rotated to rotate said arm away mechanism, a shaft, means operated by said shaft ' ‘ to render said trip mechanism inoperative, a gear on said shaft, a second gear on said shaft, a frame carrying a pair of shiftable gears adapted to be moved into and out of meshing relation‘ ‘to said ?rst mentioned gears respectively, a sec from supporting position for said latch trip mech anism, a‘ predetermining mechanism adapted to be actuated by said ?uid ?ow device to support 2,405,589 15 16 said latch trip mechanism after release by said limiting rotation of said ?rst shaft when the seg mental gear disengages from the planetary gear. 15. In combination, a shaft carrying ,a plurality of arms, a corresponding number of segmental gears secured to said shaft in partially overlapped relation, a second shaft, a freely rotatable frame arm, and means cooperating with said feeler means to release said latch trip mechanism to trip said latch mechanism when a predetermined quantity flows through ‘said device. 11. In a predetermining mechanism, a latch ing mechanism, a latch trip mechanism, a shaft, an arm secured to said shaft and supporting said latch trip mechanism, a stop limiting movement journalled on said second shaft and carrying a plurality of planetary gears adapted to mesh with said segmental gears respectively, stop means for of said arm, a segmental gear secured to said 10 said frame to stop rotation thereof when a plane shaft adapted to be rotated by a fluid flow re tary gear comes into mesh with a segmental gear, sponsive device, a second shaft, a sun gear on said whereby said ?rst shaft is rotated to place one arm in approximate dead center position, a weight second shaft, a freely rotatable frame iournalled on said second shaft and carrying a planetary biasing said arm past dead center, and stop means gear in mesh with said sun gear, stop means for 15 limiting rotation of said ?rst shaft when the seg said frame to stop rotation thereof when said planetary gear comes into mesh with said seg mental gear, whereby said segmental gear is ro tated to rotate said arm away from supporting mental gear disengages from the planetary gear, whereby said arm supports said weight. 16. In combination, a shaft, a plurality of arms on said shaft, a gear on said shaft, a shiftable position for said latch trip mechanism, a prede 20 gear movable into and out of meshing relation termining mechanism adapted to be actuated by with said first gear, a second gear on said shaft, said ?uid ?ow device to support said latch trip a second shiftable gear movable into and out of mechanism after release by said arm, and means in said predetermining mechanism to release said latch trip mechanism to trip said latch mecha nism when a predetermined through said device. meshing relation with said second gear, means ro tating the ?rst shiftable gear when in mesh with 25 the ?rst gear to rotate said shaft, means to dis quantity flows engage said ?rst gear from- said ?rst movable gear and to move said second gear into the path of the second movable gear, and means for actu 12. In a predetermining apparatus adapted to be actuated by a ?uid ?ow'responsive device, a ating said shiftable gears. pivoted weight, a shaft, an arm secured to said 30 17. In a fluid dispensing system in which a ?rst shaft and supporting said weight, a stop limiting ?uid is dispensed from and introduced into a rotation of said arm, a segmental gear secured to reservoir by the admission to and discharge from said shaft, a second shaft, a freely rotatable frame said reservoir of a second relatively inert fluid journalled on'said second shaft and carrying a and including a, meter operable in reverse direc planetary gear, a sun gear on said second shaft tions by the flow of said second ?uid to and from meshing with said planetary gear, stop means for said reservoir; a single normally closed valve said frame to stop rotation thereof when said means controlling the ?ow of said second ?uid to planetary gear comes into mesh with said seg and from said reservoir, means for latching said mental gear, whereby said segmental gear is ro valve means in open position, and means control tated to rotate said arm away from supporting po 40 ling closure of said valve means to predetermine the amount of said ?rst ?uid introduced into or sition for said weight, a. predetermining mecha dispensed from said reservoir, .said controlling nism'adapted to be actuated by said device to support said weight in released position and allow said weight to drop when a predetermined quan tity flows through said device, and latching mech anism adapted to be tripped by said released means comprising individual ?rst ?uid and sec pm (:1 ond ?uid registering devices, and mechanism for operably connecting said devices with the meter to reversibly drive said devices in additive or sub tractive registering direction in accordance with the direction of flow of said ?rst ?uid past the 13. In combination, a shaft carrying an arm, a meter, 3, separate means operatively controlled segmental gear secured to said shaft, 2. second shaft, a freely ‘rotatable frame journalled on said 50 by each of said registering devices to actuate said latching means and permit closure of said second shaft and carrying a planetary gear valve means, and additional means adapted to co adapted to mesh with said segmental gear, stop weight. _ act with each of said latch actuating means. inde means for said frame to stop rotation thereof pendently of the other and prevent latch actuat when said planetary gear comes into mesh with ing operation of that one of said means which is said segmental gear, whereby said ?rst shaft is associated with the registering device operating in rotated to place said arm approximately at dead the additively registering direction. center position, bias means resting on said arm 18. The combination de?ned in claim 17, to to move said arm beyond dead center position, gether with means adapted to be actuated by and stop means to limit rotation of said ?rst shaft 60 the meter for operating last named means in when the segmental gear disengages from the timed relation with the operation of said register planetary gear, whereby said arm supports said ing devices. bias means. ~ \ 19. The combination de?ned in claim 17, in 14. In combination, a shaft carrying a plurality which each of said latch actuating means includes of arms, a corresponding number of segmental 65 a member mounted to be movable into and out of gears secured to said shaft in partially overlapped cooperative relation with the associated register relation. a second shaft, a freely rotatable frame ing device, and said last named means comprises journalled on said second shaft and carrying a meter controlled means operable in timed relation plurality of planetary gears adapted to mesh with with the operation of said registering devices to said segmental gears respectively, stop means for 70 releasably restrain the respective members against said frame to stop rotation thereof when a plane movement in latch actuating direction and re tary gear comes into mesh with a segmental gear, tain the same out of cooperative relation with whereby said ?rst shaft is rotated to place one the respective registering devices. arm in approximate dead center position, means 20. The combination de?ned in claim 17, in biasing said arm past dead center, and stop means 75 which each latch actuating means includes a 2,405,589 17 18 member movable by gravity in latch actuating ping means to trip said latch means after prede direction, and said last named means releasably sustains said member against gravity movement. 21. In a reversible ?uid dispensing apparatus embodying a ?uid ?ow responsive measuring de termined ?uid ?ow. ‘ 22. In the apparatus de?ned in claim 21, said measuring device having two reversely actuated registers each operably associated with one of vice, valve means controlling ?ow of ?uid to be said tripping means. measured by said device and latch means for said 23. In a predetermining apparatus having valve means; a pair of individual latch tripping metering means adapted to be actuated by ?uid means each adapted to coact with said latch flow in opposite directions and comprising a pair means, means actuated by said ?uid ?ow and co 10 of reversely operable register devices, valve means acting with said tripping means operable when said ?uid ?ow is in one direction for rendering one of said tripping means inoperable to operate said latch means while permitting the other trip ping means to trip said latch means after prede for controlling ?ow of ?uid past said metering means, valve actuating means, and selector means termined ?uid ?ow, and operable when said ?uid automatically responsive to the direction of said fluid ?ow for determining which of said register devices is operable to actuate said valve means and rendering the other of said devices inoperable ?ow is in the reverse direction for rendering to actuate said valve means. said other tripping means inoperable to operate said latch means while permitting the other trip WALTER-H. MARSH. EINAR THORESEN. Certi?cate of Correction Patent No. 2,405,589. August 13, 1946. WALTER H. MARSH ET AL. It is hereby certi?ed that error appears in the printed speci?cation of the above numbered patent requiring correction as follows: Column 15, lines 11 and 12, claim 11, strike out “adapted to be rotated by a ?uid ?ow responsive device” and insert the same after “shaft” in line 12, same claim; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office. Signed and sealed this 29th day of October, A. D. 1946. [am] LESLIE FRAZER. First Assistant Gammz'ssioner of Patents.