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uMarCh 1, 1938. Y J, E'. SHEAFFER 2,110,030 MATRIX GRINDING AND MARKING MACHINE Filed April 14, 1957 4 Sheets-Sheet 1 f» di ZZ 4 ê IN f, || - » ‘l Il ëeeifem-t Lumi ATTORNEYS March 1, 1938'. J. E. SHEAFFER 2,110,030 MATRIX GRINDING AND MARKING MACHINE Filed April 14, 193'? 4 Sheets-Sheet 2 ,Mya 27 l0 @D @E sQ 2.9' ATTORNEYS March l, 1938. J. E. SHEAFFER 2,110,030 MATRIX GRINDING AND MARKING MACHINE Filed April 14, 1937 f 4 Sheets-Sheet 3 O ATTO R NEYS March l, 1938. „1_ E_ SHEAFFER l2,110,030 MATRIX GRINDING AND MARKING MACHINE Filed April 14, 1957 4 sheets-sheet 4 ¿â lI 'i n Ã . l 7* i ,t lillk v 7 ’ i? M6: 3a» Íi'l!`? 24 II 44” .7.9. I 1\ 4345 47 . .g l l l _ ,-11 è f2’ I. À ‘ ff f1 ` _ h V i á/ ‘ «5f l m -f' 2f? I 4 3f . _4.9 , Z3 l z3 f4 ¿ f1 17 '1X HI' Il ll lx" 3f 22 :î . ' 1d ‘9 // _ ÍIÍÈH / a’ \‘ f4 ï ATTORNEYS Patented Mar. 1, 1938 2,110,030 iTED STATES PATENT OFFICE 2,110,030 MATRD( GRINDING AND MARKING MACHINE. John E. Sheaiïer, Louisville, Ky. Application April 14, 1937, Serial No. 136,943 (Cl. 51-110) 7 Claims. provide a ratchet gear 8. A worm gear 9 is se cured on the hub ‘I and also located on the latter is a cam supporting plate I0 engaging one side of the worm gear. A spacing collar II is thread This invention relates to machines especially adapted for reconditioning matrices and marking the latter for identification so that they may be readily distinguished from other matrices which 5 have not been reconditioned. The primary object of the invention is the pro vision of a device of the above stated character ed on the hub ‘I into engagement with the other side of the worm gear. Supported by the plate I0 and journaled on the hub is a cam I2 of a . selected shape. A spring pressed dog I3 is piv for reconditioning matrices by grinding the out oted on the cam and normally engages with the ratchet gear to establish a drive between the hub 10 'I and the cam. A release mechanism I4 is jour naled on the head 4 and may be positioned to engage with the dog I3 to disengage the latter~ from the ratchet gear when desiring to disrupt the drive between the hub ‘I and the cam. The » side walls of said matrices to remove therefrom crevices which íill with metal when molten metal is shot into the matrices and produce hairlines rendering reading matter with a fuzzy appear ance. With these and other objects in view, this in vention consists in certain novel features of con release mechanism I4 is capable of being rotated in two directions, one in engagement with the dog to hold the latter disengaged from the ratchet struction, combination and arrangement of parts to be hereinafter more fully described and claimed. gear and the other into a position to free the dog to reestablish the drive between the hub 'I and the cam. The release mechanism I4 when posi tioned to disengage the dog I3 from the ratchet For a complete understanding of my invention, 20 reference is to be had to the following description and accompanying drawings, in which Figure 1 is a top plan View illustrating a ma chine for reconditioning and marking matrices and constructed in accordance with my invention. 25 Figure 2 is a vertical sectional view illustrating the same. ‘ Figure 3 is a bottom plan view partly broken away to show the ejector and stamping mecha nisms. Figure 4 is a plan view showing the grinding mechanism having the head of the machine re moved. - Figure 5 is a sectional `view taken on the line 5-5 of Figure 2. Figure 6 is a sectional view taken on the line Eì--ö of Figure 2. Figure 7 is a sectional view taken on the line 'F-'l of Figure 6. Figure 8 is a sectional view taken on the line 8-9 of Figure 1. Figure 9 is a fragmentary sectional view taken on the line 9_9 of Figure 2. Figure 10 is a fragmentary sectional view show ing a portion of the grinding element and a part of the track with the matrix presser therein. Referring in detail >to the drawings, the numer al I indicates a base on which is mounted a casing 2 including removable sections indicated by the character 3 to give access to the interior of the 50 casing. The upper end of the casing is closed by a removable head 4 and secured in the casing is a bracket 5 cooperating with the base I.in supporting a vertically arranged post S on which is journaled a hub 1, a portion of which is ex 55 ternally screw threaded and aportion is shaped to gear 8 moves said dog into engagement with a stop I5 on the cam. The release mechanism I4 has spaced notches I4’ to be engaged by a spring pressed dog I5’ for releasably holding the release mechanism in either of its positions. Supported by the base and detachably secured _to the latter is an electric motor I6, the shaft of which is geared to a shaft I'I, the latter being suitably mounted in the casing 2 for rotation. A worm I8 is secured on the shaft I'I and meshes with the worm gear 9. 'I‘he shaft of the motor I6 also has secured thereto a circular grinding 35 element I9. The electrical feed conductors for the electric motor I6 are indicated by the charac ter 20 and may be connected in any well known manner to an electrical output and include or have connected therein a control switch 2| oper able from the exterior of the casing. The head 4 is provided with a chamber 22 in which operates the grinding element I9, an ejec tor mechanism and a stamping mechanism. The ejector mechanism and stamping mechanism will 45 be hereinafter described in detail. The head 4 has a slot communicating with the chamber 22 in which is mounted a housing 23 including a magazine or hopper 24 and a track or guide 25. Matrices are stacked in the magazine 24 and are ejected therefrom one at a time onto the track which guides said matrices into engagement with the grinding element I9 and past said grinding element into a chute 2B forming a part of the housing 23. 'I‘he chute 2B includes inclined 2. 2,110,030 guides or tracks 21 connecting one end with one started through the manipulation of the control . end of the guide or track 25 and the other end of said guide or track 21 terminates above a re mechanism I4. The magazine 24' has a slidable gate 38' which may be adjusted relative to the track 25 and cooperates therewith in permitting only one ma trix to be ejected by the ejector from the maga zine onto the track at atime. The gate 38 being adjustable vertically is for the purpose of varying thesize of .the space between itself and the track ceiving tray or box. A spring actuated presser 29 operates in the housing 23 and cooperates with the track 25 in slidably supporting the mat rices and to urge one at a time into engagement with the grinding element I9. A portion of the track 25 under thepresser 2_9 isÍ cutaway-so that 10 a face ofla matrix >will‘be brought >`into;[engage to. _accommodate matrices of different thick .ment with the grinding element i9. The presser nesses. y The gate is adjusted vertically in either 23 is of sectional formation with the sectional». 3 direction by a hand operating means 39 and the loosely connected. upper end of the gate is provided with a shoulder An ejector 30 is slidably supported intheih'oiis 40 cooperating with a ñange 4l on the magazine 15 ing 23 for the purpose of ejecting the lowerrnos . `tofform a gage. 10 The use of the gage is for the matrix of the stack of matriceslocatedin.the,_¿. Kpurpose of bringing about the adjustment of the magazine 24 into the guide or track"2`5'. YThe gate >to form a space between itself and the track ejector has a finger piece 3îlf operating in'ïa'ïslot Í ofira- size inacoordance with the thickness of a 32 formed in the housing 23 and also secured. to. particular. or selected matrix. By positioning 20 the ejector is a post 33 carrying a roller‘z3`4` which ' a'selected‘matrix on the flange 4l and bringing 20 rides? on the camy l2. A lever 351is‘pivoted on thelshoulder 44 in engagement therewith will the head> 4 and- one kend has connected» thereto aY coil spring 36 and the other" end' ‘has »pivoted theretol a link' 3l and the latter is pivotally con 25 nec'ted- on the ejector: The spring 36A actsy 1z0-drive the ejector when permitted.` by the cam.V The cam actsk to retract the ejector againstY the’v action of the'spring 36, that is; the’high face of the cam retracts the ejector‘and' asÍthe roller 34 ofA the 30 post_33 >passesv oiï’ of the high face oí the carri the spring 36 drives the ejector to Àfc'irce‘the’l'ow ermost ’matrix'intothe-- track Èorgui’d'e 252. "It is to be `understood that when 'the ejector ïisrnoved 35 intov a retracted position it moves'fromrunder the lowerrnost matrix in the magazine to become bringiabout‘an. adjustment of the gate relative to the >track to form a space only large enough to permit theV selected` matrix t0 .pass from the magazine into the track by the ejector and one 25 at a time. V , 'A marke'r42 is slidably supported by the guide or Vtrack 25 directly under the magazine and is connected toV a slidablel head 43 carried by the head' 4?.'1`A plate 44 is: connected to the head 43 30 and'one end thereof is pivoted to the head. 4, as shown( at 45. >The plate 44- has a slot 46 through which extends a pin 41 carried by the engaged withvone endof said lower'mo'st matrices head'4 for limiting the pivotal movement oi the plate. A coil spring 48 is connected to the plate 35 44 and tothe head 4 Vand acts to retract the so that the ylatter lwillbe’"shoved'linïto the ftrackv or _guide- 25 when the'cam releases the ejector. marker 42 out of the path of a matrix in the guide or track 25. An arm'49 is secured on the It takes one complete revolution of` the cam`to retract the yejectoruan'd to releasel theÃ latter vfor shoving the lowerrnostfmatrix in the magazine into _the track or guide 25. `The matrix when moved into the track or guide‘25 by the’n ‘ejector clearsmitself- from the remaining matrices *so that 45 the .next matrix comes to `rest upon the ejector and as the latterA moves into a retracted position said last-named matrix then .becomes engaged plate 44v and is engaged by a cam 52' secured on the cam` I2v and is Valso engaged by a pivotally 4.0 mounted lever 56 one end of which has connected thereto a”- coili spring 5|’ and the other end is provided with» an adjustable'pin 52 engageable withïthe head 4 and' acts to limit the movement of the lever 50 under the action of the spring 5l. 45 The spring 5l acts to drive the plate 44' in a di at one _end .with theA ejectorr The ejector Ion, its rection to force the marker 42S to travel in a di rection for' marking the lowermost matrix in the next operation. forces thek latter-namedjgmatríx magazine 24. As the arm 49 rides oiî of the cam 50 into the. track or. guide` 25' causinglethe first ejected matrix to yprogress ya'longthe'Í _track 'or' 52', the‘lever 5U is swung on its pivot with con 50 siderable force by the spring 5|. The swinging guide. ,This operation continues as long as'the machine .isin yoperation and the magazine con-g tains matrices.' v.As the matrices advance >along 55 the track. or guide 25one at atimecomes incon engaging the head 4. ’I‘he lever 50 beingv in en gagement withthe arm 49 when the latter dis engages the cam 52’ swings the plate `4,4 on its 55 tact. with thelgrinding element _t9 to vhave the movement of the lever is checked by the pin 52 pívot” 45 with considerable’force carrying there with the head l43 and the marker 42. The plate outsidewalls thereof` dressed lto remove imper fections. „As the matrices, areldressed they pass ' 44V_mayl continuerto travel under its momentum into vthe chute 26 and thence intothe tray 28 after the checking of the swinging movement of 60 and arranged inthe latter infastackedfformaj the` leverjß. The marker 42 engages with the 60 matrix’during the time thatthe plate 44 is swing tion- and each- disposed vertically. ,-Thisjs accom plished by -a mechanism whiclrwül be herein-A ingnunder its momentum so that the marker will receive >a hammer-like blow which is sufficient to after more fully described in detailrfl'hemag bring about marking of the matrix. A stop 54 65 azine 24 is of.»a size» to accommodate thematrfices is secured' on the plate 44 and may be engaged by of `a font and‘also three or more _dudsfshapedY similar to a- matrixß; >The purpose ofthe duds is av control'mechanism 55 carried by the head when to bring `about the complete feeding oi.L all-- of thev itis desired to hold the marker 42 in a retracted matricesthrough rthe machine into the `tra-:V28 or inoperative position. . AIt is to be understood that the control mecha and as' Ithe last‘matrix' Ireaches ’ the tray' 28'“ the nism 55 isroperable from the exterior of the head duds'a'rè then within'the machine" or ther track so'thatthe marking mechanism can be rendered 70 25 thereof' and' willhbe forced therefrom by the operative and inoperative when desired. The next’run or' lc/iatchv of matriceshactedfonfbïy the purpose of marking the‘matricesis so that they machine. #Ijlieopération ofv the ejector with theu can be `identiiied after being. reconditioned from"electric motor yHi running can *be stopped’and matrices which have not been" reconditioned.' 2,1 10,030 3 The box or tray is slidably supported, as shown at 56', and is adapted to receive the matrices as they are reconditioned, they being stacked there in and each disposed vertically. Located just above the tray 28 are spring fingers 5l’ adapted tail is employed. To recondition matrices of a certain size one of the matrices is placed between the shoulder 40' of the gate 38 and the flange 4I and the shoulder brought into engagement with to engage the matrices as they enter the tray. A so» that matrices of this size or thickness will -be fed one at a time from the magazine into the follower 58 operates in the tray with a sliding movement and is connected with a slidably mounted plunger 59 on which is journaled a roll er 6D. The roller 60 rides the cam I2 for the purpose of reciprocating the follower 58. Each time a matrix is received in the tray the follower 58 is reciprocated for the purpose of advancing the tray endwise permitting the matrices to stack in the tray one behind the other with the fol lower and fingers 5l’ cooperating in maintaining the matrices in stacked position. Each time the cam I2 completes one revolution a matrix is de posited in the tray and consequently the follower 58 is reciprocated once on each revolution of the cam I2 to bring about an advancement of the tray in an endwise direction to provide a space for the reception of the following matrix. As the tray 28 is advanced on the stacking of matrices therein some of the matrices stacked within the tray will become disengaged from the fingers 51’ however they will maintain their vertical posi tions by the upright walls of the tray and the matrices stacking therebehind and still in en 30 gagement with the fingers 5l’. The tray 28 can be easily removed from its support after com pleting a run- or reconditioning of a group of matrices so that the matrices reconditioned can be easily emptied or removed from the tray. The plunger 59 is spring pressed to maintain the roll er 60 thereof in contact with the periphery of the cam I2. The follower 58 includes the slidably supported head 6I to which is secured a plunger 62 of the spring pressed type and secured to the 40 plunger 59 is an arm 63 having contact with the plunger 62 so that when the plunger 59 is moved by the cam to advance the follower 58 a drive is 45 50 55 60 established by the arm 63 from the plunger 59 to the plunger 62.» One end of the tray is fully open so that said end may ride past the head 6I of the follower when the tray is removed or replaced in position on the machine. The housing 23 has formed therein an air pas sage 63’, one end of which is connected to a valve 64 located exteriorly of the head and the other end is connected to a nozzle 65. The valve 64 may be connected to an air supply (not shown) by a pipe 66. The nozzle 65 is for the purpose of directing air under pressure across the face of the grinding element to remove from the grinding element grindings. As the grindings are blown from the grinding element they pass through a port 61 in the head 4 and into a collecting bag 68, The air is turned on by opening the valve 64 and may be cut off at any time desired by closing the valve. the matrix, thereby properly adjusting the gate track 25 by the ejector mechanism. After the setting of the gate the matrices are stacked in superimposed relation in the magazine 24. The 10 motor I6 is then started, the control mechanism III first being positioned to render the ejector mechanism inoperative. After the motor has ob tained its full momentum the control I4 is ac tuated to connect the cam I2 to the drive between 15 the latter and the motor. The cam I2 being in operation ñrst operates the marking mechanism to mark the lowermost matrix in the tray and at the same time the cam retracts the ejector. After the marking of the matrix the cam releases the 20 ejector which acts to shove the lowermost ma trix just marked into the track or guide 25. This same operation continues consequently advancing the matrices along the track and as each matrix arrives at a certain place on the track a face 25 thereof comes in contact with the grinding ele ment so that one of the outer walls is ground to remove crevices therefrom. The matrices being advanced in a step by step movement will, after a certain amount of grinding, move onto the in 30 clined guide 2l and pass therefrom into the tray 28. The matrices being stacked on end in the tray 28 as they are received therein and as each matrix enters the tray the latter is advanced end wise to provide a space for the following matrix. 35 When first assembling the matrices in the maga zine 24 a plurality of duds are added to the stack so that said duds in passing through the machine will exhaust from the machine into the tray all of the matrices which have been stacked inthe 40 rack. After the passing and reconditioning of one side wall of all of the matrices they are re moved from the tray 28 and turned over and re positioned in the magazine 24. At this time the marking mechanism is rendered inoperative by 45 manipulating the control 55 so that said matrices will be again passed through the machine in a step by step movement by the ejector receiving necessary additional grinding on both walls to re 50 move crevices and defects therefrom so that the matrices when again received in the tray will have been ñrst marked for identification and then reconditioned, that is, both outer walls re reconditioned by having crevices removed there 55 from rendering said matrices in proper condition for further successful use. What is claimed is: 1. A machine for reconditioning matrices com prising a supporting structure, a track carried 60 by said structure and including a magazine for Linotype machines and other line casting ma chines employ matrices of different thicknesses, however, the matrices of the same thickness are 65 segregated and kept in fonts and after they have receiving matrices to be fed one at a time onto been in use for a period of time the outer walls become damaged or have crevices formed therein and these crevices become filled with metal when the matrices are shot with molten metal and which creates hairlines. Heretofore, matrices becoming so damaged or worn have been discard ed and in order that matrices damaged in the by step movement along the track, a power means carried by the supporting structure, a marking mechanism carried by said supporting structure manner described may be reconditioned and ren dered fit for further use my machine as shown in 75 this application and heretofore described in de said track, an ejector mechanism for ejecting matrices one at a time from said magazine onto said track and to advance said matrices in a step for marking the matrices one at a time carried by said magazine and prior to being advanced from the magazine onto the track by said ejector mechanism, and a drive means driven by said power means for operating the ejector mecha nism and the marking mechanism, a grinding mechanism operated by said power means to act 75 4 2,1 10,030 onsaid matrices as advanced into a certain posi' tion onto 'the track by the ejector mechanism. 2. rA machine for reconditioning matrices com prising a supporting structure, a track carried by said structure and including a magazine for receiving matrices toabe fed 'one at a time onto said track,; Van ejector mechanism for ejecting matrices one at a time from lsaid magazine onto said'track and to advance said matrices in a step by step movement along the track, a power means carried by the supporting structure, a marking mechanism carried by said supporting structure for marking the matrices one at a time carried 'by said magazine and prior to being 15 advanced from the magazine onto the track by said -ejector mechanism, a drive means driven by said power means for operating the ejector mechanism and the marking mechanism, a grinding mechanism operated by said power means to act on said matrices as advance-d into a certain position on the track by the ejector mech anism, and means receiving the matrices after being marked and acted upon by the grinding mechanism and to arrange them in stacked for 25 mation. ` ' ` 3. A machine for reconditioning matrices com prising a supporting structure, a track carried by‘ said structure and including a magazine for receiving matrices to be fed one at a time. onto 30 said track, an ejector mechanism for ejecting matrices one at a time from said magazine onto . said track and to advance lsaid matrices in a step by step movement along the track, a power means carried by the supporting structure, a means, a'manually 'controlled~ means for con necting and disconnecting the cam to said worm gear, a tray slidably mounted on the supporting structure to receive the matrices as advanced from the track, and a follower operated bysaîd cam to advance-the tray endwise and stack the matrices therein. r 5. A machine for reconditioning matrices com prisinga supporting structure, a power means carried by said structure, a grinding mechanism driven by said power means, a track carried by said supporting structure to guide matrices into and out of engagement with the grinding mecha nism, a magazine carried yby the supporting structure for delivering matrices onto said track, an ejector mechanismI operated by said power means for ejecting matrices one at a time from the magazine onto said track and to advance the matrices in a step by step movement along said track, a marker carried by said track for mark ing a matrix after it has been advanced from the magazine onto said track, and means driven by said power source for operating .the marker. 6. A machine for reconditioning matrices corn prising a supporting structure, power means car 25 ried by said'structure, a grinding mechanism driven by said power means, a track carried by said supporting structure to guide matrices into and out of engagement with the grinding mecha nism, a magazine carried by the supporting 30 structure. for delivering matrices onto said track, an ejector mechanism operated by .said> power means for ejecting matrices one at a time from the magazine onto said track and to advance the 35 marking mechanism carried by said supporting matrices in a step by step movement along said 35 structure for marking >the matrices one at a time carried by said magazine and prior to being advanced from the magazine onto the track by said ejector mechanism, a drive means driven 40 by said power means for operating the ejector mechanism- and the marking mechanism, a grinding mechanism operated by said power means to act on said matrices as advanced into a certain position on the track by the ejector 45 mechanism, means receiving the matrices after being marked and Vacted upon by the grinding mechanism and to arrange them in stacked for mation, and pneumatic means for removing grindings from the grinding mechanism. 50 4. A machine for reconditioning matrices com prising a supporting structure, power means car ried by said structure, a grinding mechanism driven by said power source, a track carried by said structure for guiding matrices into and out 55 of engagement withthe grinding mechanism, a magazine for delivering onto said track matrices, track, a marker carried by said track for mark ing a matrix after it has been advanced from the magazine onto said track, a drive means in termittently operated and driven by said power means to operate the marker with hammer-like 40 blows. , ' 7. A machine for reconditioning matrices com prising ay supporting structure, a power means carried by said structure, a grinding mechanism driven by said power means for acting on a ma 45 triX supported by a certain portion of said track, a magazine for supporting the matrices and de livering them onto said track, an ejector for ejecting matrices one at a time from the maga zine onto said track and to advance the matrices 50 in a step by step movement over said track, a cam for operating the ejector, spring means act ing on the ejector to maintain the latter in en gagement with the cam, a drive means between the power means and the cam, a slidable marker 55 for marking the matrices as they move onto the track from said magazine and including a slid ably supported head, >a plate connected to said vance the matrices vin a step by step movement head and pivotally mounted on said supporting 60 along said track, spring means acting to operate structure, a spring acting on said plate, an arm the ejector in one direction, a cam connected secured to said plate, a lever pivotally mounted 60 to said ejector and working to move the ejector on the supporting- structure and engaging-the in an opposite direction and for releasing the arm and including a stop means for limiting its latter to be actuated by said spring means, a pivotal movement in one direction, a spring act 65 post carried ¿by said supporting structure and ing on said lever, and a cam carried by the ñrst forming a journal for said cam, a worm gear> cam to engage and disengage with said arm for 65 _journaled on said post, a worm meshing with imparting movement to said plate which in turn thefworm gear, a shaft journaled on the support actuates the marker with a hammer-like blow. an ejector for ejecting matrices one at a time from said magazine onto said track and to ad ing structure and having the worm securedthere 70 to, means connecting the shaft to said power JOHN E. SHEAFFER.