Dec. 10, 1946. -A. |_. PARKER ET AL I ENGINE PRIMER ' Filed Nov. 27, 1944 . 2,412,532 - Patented Dec. 10, 1946: 2,412,532‘ UNITED STATES PATENT OFFICE land, Ohio, assigno'rs' t0_The‘ Parker Appliance Company, Cleveland, Ohio; a' corporation of Application November 27, 1944, ‘Serial No. 565240 7-Claims; (C1. 1'03—2’) l 2 The present invention relates generally to ticular reference to Figure 1, the primer broadly primers for internal combustion engines ortlie like; arranged to feed'a' priming charge to one or includes a pump cylinder Ill,‘ a piston II with an enlarged head portion I2 mounted‘ therein for rotation and/or reciprocation by means of an‘o'p erating handle I3 secured to an end of the piston more of a series of such engines through a se lector valve for opening and‘ closing a plurality oppositetheenlarged head portion I2, an inlet of‘ outlets. An object of the invention is to provide inan check valve I4; a selector valve I5 detachably con nected to the piston head l2; and novel means for engine'primer of the type above referred'tda novel selector valve indexing and locking means; indexing, locking and indicating each respective in combination with a novel‘indicat'ing’ means for _ each position of the selector valve with respect‘to‘ any one‘o'f ‘a plurality of outlet ports; A further object is to provide in an. engine primer including a selector valve arranged’ with a plurality of outlets and a piston adapted to de tachably connect therewith; novel valve indexing means and locking means whereby the primer piston is locked against reciprocatingmovement position‘ of the selectorv valve I5'adjacent to the operating handle I 3 ' and‘ cooperating‘ therewith; The“ pump cylinder I0‘ is ?ared outwardly atv its‘lower end to provide an enlarged chamber I5. The‘ chamber It‘ contains a threaded aperture‘ in' the‘side wall for receiving the inlet check valve M, which may be a self-contained nipple in which is‘mounted a‘ ball I‘! and a spring I8: Thus the primer'can readily be mounted on an instrument panel I9 having a hole of a diameter but slightly when the selector valve is “off” or being» turned from one outlet‘ to another, andwhereby the pis 20 larger‘ than the‘ enlarged chamber I6‘, when the nipple‘ is temporarily removed. Within the enlarged chamber l 6 is the selector valve» I5; a spring 20, a spring abutment plate 21 ton is detachable therefrom for reciprocat-ion'in dependently of the valve when the selector valve is “on.” Still a further object is to provide in an engine and an outlet spring ball check valve 22. Valve primer, 2. novel: means, whereby each respective position of ‘a selector valve is positively indicated 25 I5 has a: seating end 24 preferably of graphitic material bonded thereto. The valve I5 and end to the operator. 24 are provided with a central passage 25‘there These and ‘other objects I- attain by the cone" struction in the accompanying drawing, wherein one embodiment of the invention is-shownfor through, and a radially extending passage 26 adjacent the seating surface of the valve endv 24. The‘ passage 26vis adapted to be brought into or out of alignment with any one of a plurality'of' outlet‘ ports 28 in a head 36 secured as by bolts the purpose of illustration, and'wherein: Figure 1 is a longitudinal» cross section view 3| inthe rim of cylinder In by selectively rotating of a- primer embodying the invention; the valve unit I5. The coupling between the end of the cylinder 50 and head" 30 may be made ?uid-tight by any suitable device,.such as gasket Figure 2 is a top planv view in elevation of'the assembled ‘novel indexing, locking and- indicating means of the primer;v Figure 3 is_ a transverse cross section’view taken’ 32. ' Rotation of the valve unit I5, which may be any suitable'typeof rotary valve is accomplished Figure 4 is a transverse cross section view-I taken along the line ll—4 of Figure 1; showing- the de 40 by rotation'of the handle I3 secured to the piston I I ‘opposite'to'the enlarged piston head I2, which tachable connection between the’ selector valve on the line 3-3 of Figure l; V ‘ detachably connects with the other end 33 of andthe primer piston; the valve’ I5. This‘en'd 330i the selector valve I5 is non-circular in cross-section; and is'engage along the line 5—5'of Figure 1; Figure 6 is _a top’ plan view of- a-novel valve 45 able in a transverse groove of similar cross section in piston head I2. The spring abutment abutment plate; such as maybe used‘ with our Figure 5 is a transverse cross section view taken device; Y I plate 21' is adapted to engage with an annular V shoulder 3t‘ at the upper end of the chamber l6, Figure-7 is a plan View of the inner side of the novel index plate adapted-I to receive the valve position indicator ring; _ and is apertured so as to ?t over the non-circular 50 end33 of‘the'selector valve I5, and to provide for ‘ Figure 8' is a cross section view taken along the’ line 8-—8 of Figure 7; Figure 9'is‘acros‘s section view showing the'pisl ton disconnectedirom the‘ select'or‘valv‘e. Referring to the drawing and ?rst with par; 65 passage‘of ?uid‘int'o the cylinder ID, as shown in _ Figure'G. Thus, when the piston is pulled up ward, as shown in Figure 9,‘ the‘ spring 20 expands and causes the abutment plate 21 to engage with the shoulder 34, whereby the expanding action 2,412,532 3 of the spring 23 likewise moves the valve I5 and presses the seat 24 against a ?at seating surface on the cap or head 36. Obviously, the spring 20 should have greater tension than the opposing suction forces created in the cylinder during out ward movement of the piston II, so that the selector valve unit I5 will remain seated on the seating surface of head 38. The piston head I2 has an annular groove in which is mounted a 4 adapted to register with any one of the spaces 46 between one of the ?anged segments 41, where by no portion of the indicator ring 58 is visible, while at the other spaces 46 portions of the indicator ring 50 are clearly visible. Thus, as suming that a red plastic index ring 53 is being used, and the operator sees the red plastic mate rial at all the spaces 46, he knows that the cor responding outlet ports 28 are off, and likewise sealing ring 35, and also has on its upper face a 10 whenever he sees no red plastic material at one of the spaces 46 he knows that the corresponding cushioning means, such as a rubber ring 36, see outlet port is open, and ?uid is passing to that Figure 9. i particular engine when the piston Ii is recipro The piston II opposite to its enlarged head cated. portion I2 is guided and operated by means Thus, for example, when the handle I3 is in a mounted on the upper extremity of the cylinder 15 45° position with its lug 40 engaged in one of the ID, which cylinder is provided with a mounting recesses 48 on the inner side of one of the seg ?ange 38. The ?ange 38, as shown in Figure 1, ments 41, the ports 28 are all closed. In this posi is adapted to be secured to the instrument panel tion the ?anged segments 41 prevent reciproca I9, and to support and mount an indexing ring 39 adapted to cooperate with a radial lug 49 20 tion of the piston II, and the selector valve unit I5 is held in off position wherein the radial pas carried by a skirt portion M on handle I3, as sage 26 is out of communication with any of the hereinafter to be described. outlet ports 28. The spring 28 holds the selector Extending from the ?ange 38 is a nipple 42 valve unit I5 seated on the ?at inner seat surface counterbored, for example to de?ne a shoulder 43 against which seats the end face of a piston 25 of the cap or head 38, and also transmits pres sure through the piston II to handle I3, whereby guide sleeve 44, and which is engageable with the lug 40 is yieldably forced and held in engage the cushion ring 36 on the enlarged head of the ment with the bottom wall of the recess 48, with piston I I, to thereby limit the outward movement which it is aligned. As the gap 5| of the red plas thereof. _ tic indicator ring 50 .turns with the lug 48, the concentrically positioned around the sleeve 44 ring gap 5I will be disposed in a 45° position un On the mounting ?ange 38 is mounted the novel der one of the ?anged segments 41 and the solid selector valve indexing ring 39, the lower lock portions of the red plastic indicator ring are ing skirt portion 4| of the handle £3 with the visible at all four spaces 46. This indicates that radial locking lug 48 adapted to cooperate with the indexing ring for locking the piston II, and 35 all of the outlet ports are closed. the novel indicating ring 58, each as best shown Operation in Figures 2, 3, 7 and 8. The indexing member In order to operate the primer to pump fuel comprises the plate 39 centrally formed as by from the selected upper outlet port 28, as shown counter boring or the like to provide a flange. in Figure l, the handle I3 is turned until the ar The continuity of this ?ange is interrupted by row 55 marked thereon is vertical and the lug equal spaces 46, so as to de?ne segments 41, see 48 brought into alignment with the selected space Figure 7, which segments on the inner side adja 46 corresponding to the upper outlet 28. As the cent the mounting ?ange are pressed in or par handle I3 is thus turned lug 48 disengages from tially cut out to provide recesses 48 for cooper the recess 48 and causes the piston II to slightly ation with the lug 48 carried by the skirt 4| of compress the spring 20, so that as soon as the lug handle I3 and thus yieldably retain the handle 40 comes into alignment with the space 46 corre in an off position, whereby no ?uid can be passed sponding to the selected upper outlet 28, the ban from the inlet valve I4 to any of the outlet ports dle I3 may be released and the spring 29 will 28 regardless of the pressure at the inlet, and whereby the piston II is locked against recipro 50 force the piston I I and handle I3 outward, there bydisengaging the lug 40 from a ?anged segment cation. The side walls 49 of the recesses 48, 41 through the space 46. as shown in Figure 8, are preferably inclined Because of the detachable tongue and groove or rounded, so that the handle I3 need only to connection between the piston head I2 and the be rotated to disengage the lug 40 therefrom. Otherwise if the side walls were square and sharp , end 33 of the selector valve I5 rotation of the handle I3 to the aforesaid free position likewise it would be necessary to depress the handle I3 rotates the valve, to thereby bring the radial pas before turning it. ,, sage 26 into alignment with the selected vupper The mounting ?ange 38 and the flanged seg outlet port 28. I When the handle I3 reaches its ments 41 of the indexing plate 39 de?ne between point of outward movement, as above described, them an annular countersunk bore 45, see Figure the tongue and groove'connection between the 8, in which is disposed a novel indicator means, piston head I2 and the valve end 33 completely such as a split ring 58, preferably made of col releases, slightly before the lug 40 rises com ored plastic, painted metallic material or the like. pletely out of the con?nes of space 46 between The outer diameter of the indicator ring 56 is two of the ?ange segments 41. normally larger than the inner bore 45 of the Now, as the lug 40 is completely released from indexing ring or plate 39. Thus, when the split the ?anged segments 41, .the handle I3 may be ring 56 is placed within the indexing ring 39, pulled outward and reciprocated, if desired, to it must be contracted, and therefore it yieldably draw fuel into the cylinder I0. During this out engages with the inner walls of the index ring 39. Also, when the indicator ring 58 is thus con 70 ward stroke of the piston I I, the spring 20 yield ably holds the valve in any predetermined set ?ned within the bore 45 of the index ring 39, position, such as above described, and also the red there remains a gap 5| therein, see Figures 2 and indicator ring 50 will remain in any such prede 3, which is equal to the spaces between each of termined set position because of its frictional the index rings ?anged segments 41. Accord ingly, the indicator ring. 58 has one portion 75 engagement with the index plate 39. Therefore gangsta 51 6: after the lug 40- has ‘been raisedlfro'm the-‘con?nes of anyl‘selected space“, it is immaterialwhether piston, ~a~ lugl- on saidv handle, ' an‘ ‘indexT- member adjacent said handle having‘ a pluralityiofl op I‘ ings therein corresponding to each o-ffsaid' outlets,v the handle [3 and ‘piston H are rotated or not. Following this operation and positioning of the handle, the gap 5! in the indicator ring 50 will be opposite the selected'upper space 46, as shown in Figure 2, and the remainder: of-the red indicator ring 50 can be seen in all of the spaces'1ll6'except the selected one, where the gap 5] in the ring-5B said lug-being adapted to be aligned on’eiof said openings in the index member when‘jthel handle is rotated, to thereby correspondingly‘ shift said valve into alignment with one ofi said outlets known to correspond with the selected opening in said index member, and yieldable exists.v Thus, this indicates that a port 287Pcorre~ 10 means mounted around said valve adaptedfto' sponding to theselected space 46‘ is open‘. , thrust said lug'upward from said index? member, Obviously, when the piston H is pulled- out-' while holding’ said valve ?xed in" its selected position to provide for the pumping operation wardly the suction unseats the inlet check-"valve of said ‘piston independently of the said valve.‘ l4 and the cylinder I B ?lls up with ?uid; and when the piston isipushed inwardly the outlet 15 3. In an engine primer including a pump with a piston anda selector valve adapted to'cont'rol check valve 22 opens, and the ?uid in the cylinder I0 is forced out'through the selected upper port a plurality of outlets, means’ for operating said 28. piston detachably connectable to said valve so as-to-‘selectivelyshift said valve during one posii’ When it is desired to turn the primer off, the handle’ I3‘ is turned so' that lug 4U aligns with 20 tion of the piston to align with one‘ or- nonelof space 48 and the gap 5I'in the indicator ring 50. said outlets upon rotation of said means-and means associated with said ?rst-named means With the lug 40 in this position, the handle I3 is adapted to provide for a predetermined rotation then forced inwardly, and the groove in piston of said valve for the selection of a desired outlet head I2 engages with the non-circular end 33 of during operation of the piston or adapted to lock selector valve l5. Rotation, if now imparted to said piston against operation upon a predeter the handle [3, approximately 45° in either direc mined rotation of said valve out of alignment tion, will turn the selector valve l5 to an off posi tion, while correspondingly rotating the indicator with any of said outlets. ring 50 and the lug 40 again becomes engaged in 4. In an engine primer including a pump with a piston and a selector valve adapted to control a plurality of outlets, means for operating said one of the recesses 48 behind one of the segments of the ?ange 45, to thereby yieldably hold the I piston detachably connectable to said valve so as to'selectively shift said valve during one posi valve unit H5 in an oiT position and lock the pis ton II against reciprocation. While the present invention has been described tion of the piston to align with one or none of in connection with only one form of device, such 35 said outlets upon rotation of said means, means associated with said ?rst-named means adapted as the engine primer illustrated in the accom to provide for a predetermined rotation of said panying drawing, it is to be understood that it valve for the selection of a desired outlet during may also have utility for use With other devices operation of the piston or adapted to lock said for dispensing ?uid or the like. Accordingly, it is to be understood that as various other modi?ca 40 piston against operation upon a predetermined rotation of said valve out of alignment with any tions and uses for our invention may suggest of said outlets, and means mounted between said themselves, we do not wish to be limited to the speci?c apparatus disclosed, but desire the ap ?rst named means, and said second named means pended claims to be construed as broadly as per missible in view of the prior art. 45 tive of the on and o? positions of said selector We claim: adapted to provide visible indications representa valve with respect to- said outlets. 5. In an engine primer including a cylinder having a reciprocating piston therein capable of free rotation and a selector valve adapted to open - 1. In a liquid dispensing device comprising a pump having a reciprocating piston, a valve associated with said pump for controlling the discharge of ?uid from the pump through a plu 50 and close a plurality of outlets, a handle for rality of outlets, means whereby said valve and said piston may be coupled together when said piston is at the end of its compression stroke, so that rotation of the piston will shift said valve operating said piston within said cylinder, said handle having a skirt portion with a lug thereon, said piston having an enlarged head detachably connectable with said valve so as to provide for to different positions With respect to said outlets; r the combination of a handle adapted to rotate said piston, a lug on said handle, and an index member adjacent said handle having a plurality rotation thereof to selected position with respect with one of said openings in the index member when the handle is rotated, to thereby corre spondingly shift said valve into alignment, with one of said outlets known to correspond with the plurality of spaced segments to thereby de?ne pump having a reciprocating piston, a valve associated with said pump for controlling the discharge of ?uid from the pump through a plu the handle when the outlets are closed by said piston is at the end of its compression stroke, so that rotation of the piston will shift said valve to di?erent positions with respect to said outlets; the combination of a handle adapted to rotate said 75 free rotation and a selector valve adapted to open and close a plurality of outlets, a handle for to said outlets upon rotation of said piston, an annulus of larger internal diameter than the exterior of said skirt portion having an inwardly projecting ?ange mounted on the upper end of of openings therein ‘corresponding to each of said outlets, said lug being adapted to be aligned 60 said cylinder, said ?ange being divided into a spaces therebetween corresponding in number and position to said valve controlled outlets, and a plurality of depressions centrally disposed on’ selected opening in said index member. 65 the inner side of each of said segments adapted 2. In a liquid dispensing device comprising a to be engaged by the lug on said skirt portion of valve to thereby lock said piston against recip rocation in said cylinder. 6. In an engine primer including a cylinder rality of outlets, means whereby said valve and 70 having a reciprocating piston therein capable of said piston may be coupled together when said operating said piston within said cylinder, said handle having a skirt portion with a lug thereon, 2,412,532 8 said piston having an enlarged head detachably when 50 mounted having a gap at its split portion connectable with said valve so as to provide for rotation thereof to selected positions with respect adapted to conform to the width of the spaces between each of said segments, and said lug on said skirt portion of the handle, whereby upon rotation of said handle and said piston to shift said valve the lug likewise rotates said ring to to said outlets upon rotation of said piston, an annulus of larger internal diameter than the exterior or said skirt portion having an inwardly indicate the open or closed condition of the said projecting ?ange mounted on the upper end of said cylinder, said ?ange being divided into a valve controlled outlets. 7. In an engine primer of the class described plurality of spaced segments to thereby de?ne spaces therebetween corresponding in number and 10 having a cylinder, a reciprocating piston therein, a piston locking means carried by the piston, a position to said valve controlled outlets, a plu selector valve adapted to control the discharge rality of depressions centrally disposed on the of ?uid from the cylinder, a ?xed indexing mem inner side of each of said segments adapted to ber for said valve, locking means associated with be engaged by the lug on said skirt portion of the handle when the outlets are closed by said 15 said indexing member for engagement with the valve to thereby lock said piston against recipro locking means carried by said primer piston, and cation in said cylinder, and a split ring of yield able material and contrasting color with respect to said annulus in frictional egagement within the means mounted in said indexing member adapted to indicate the on and off positions of said valve. bore of said annulus and concentrically positioned 20 around said skirt portion of said handle, said ring ARTHUR L. PARKER. JOSEPH F. MELICHAR.