US1286478A - Finishing device for curved stereotype printing-plates. - Google Patents

Description

H. A. w. W000. V FINISHING DEVICE FOR CURVED STEREOTYPE PRINTING PLATES.

APPLICATION FILED SEPT- I6 I9I3- RENEWED SEPT. 6. I918- LflfififiYfiu Patented D00. 3, 1918.

5 SHEETS-SHEET I.

III/IA m: Helm: rnsm co, Pnunzuyna. msflmmam u c Patented Dec. 3, 1918.

5 SHEETS-SHEET 2- H A. w. WOOD. FINISHING DEVICE FOR CURVE!) STEREOTYPE PRINTING PLATES..

APPLICATION FILED SEPT- l6. 19'3- RENEWED SEPT. 6, I918.

ww kw H. A. W. WOOD.

FIN'ISHINGDEVICE FOR CURVED STEREOTYPE PRINTING PLATES. APPLICATION men SEPT. 16. 19's. RENEWED SEPT. e. 19 8.

H. A. W. WOOD.

FINISHING DEVICE FOR CURVED STEREOTYPE PRINTING PLATES.

APPLICATION FILIID SEPT. Hi I9I3- RENEWED SEPT-6,19]?- Patented Dec. 3, I918.-

5 SHEETS-SHEET 4.

H. A. W. WOOD. FINISHING DEVICE FOR CURVED STEREOTYPE PRINTING PLATES.

APPLICATION FILED SEPT. 15. 19:3. RENEWED SEPT. 6. 191a.

LQ@6,%?& Patented Dec. 3, 1918.

5 SHEETS-SHEET 5- prairie earns iea'rnivr isten. w

HENRY a. wIsE woon, on NEW Yon-rt, 1v: asereitoia; er amstinfilssreivmnnrs, T

woon NEWSPAPER MACHINERY oonronerron; or nnwvonrz; n. in, a connona'rronr or vrnemra.

FINISHING :oEvIon son cunvnp srreianorvrn remains-mares.

LQMSA'Y.

Specification of Letters Patent.

Pate ted nee. rare.

Application filed September 16,1913, Serial No. 790,072. Renewed. s tmte e, 1518, serial in. 252,973.

To all it lwm it may concern:

Be it known that I, HENRY Ween/0'01),

a citizen of the UnitedStates, residing at New York, in the county of New York and State of New York, have invented a new and useful Finishing Device for Curved Stereotype Printing-Plates, of which thefollowing is a specification.

This invention relates to a finishing device for semi-cylindrical stereotype printing plates of .the type in which the plates are fed down an inclination partly or wholly by gravity.

Many features of the invention constitute improvements over the finishing device set forth in my Patent No. 1,283,973, patented September i, 1917, filed June 25, 1912.

The principal objects of the invention are to provide a one man machine occupying small space, inwhich the advantagesof tinishing the plates while traveling down an incline can besecured convenlently in conjunction with a vertlcal casting chamber which will automatically take care of its inclined temporary tracks and then feeding it therefrom down through an inclined finishing device and' delivering it cool and dry;

to provide a practicable andefticient construction of temporary receiving tracks for holding the plate after it is delivered from the mold in positionin alinement with the finishing mechanism capable of feeding the plates thereto by gravity so that no conveying mechanism Wlll be required; to provide positive means for controlhng the descent of the plate intotheinclined finishing rnechanism; to provide means for lifting thetail severed from the plate outof the shaving arch and delivering it to a conveyer; to.pro

vide improvements in means for adjusting the motion of thefmovable plate supporting tracks within the shavnig arch; toffacllitate the inspection of the plates throughout their travel through themachine; and to provide.

improvements in the details of construction of the above mentioned features and inthe cooling device to whichthe plate is dehvere'cl from the finishing mechanism.

axis of the finishing arch; .1.

plate which is Reference is to be to teammates ing drawings in which Figure l is an elevation of a f nishing machmeconstructed Ill accordance Wltll this 1 1nvent1on showing its relationship to a cast ing mechanism;

mechanism therefor; i t t H F g. 3 is an end elevation of the temporary tracks for. receiving the plates from the core; Fig, t s a slde elevat on of a portlon of the finishing arch and connected mechanism;

on enlarged scale, partly broken away .to

Fig. 2 is a plan of aportionof the driving t show the interior construction and in section along a central, longitudinal, vertical plane;

F'g. 5 isa transverse, sectional viewlon the line 55,of h 1g. t; a

Fig. 6 is a plan of part of the cutter opei a'ting mechanism in the finishing arch;

Fig. if is an end elevation of the finishing ineohanlsm lookmg 1n the direction of the Fig. Sis a side View of the lower thereoi shown partly in section;

portion Fig. 9 is a side elevation of a portion of the} arch withparts in section showing the tail GJGCtOI;

Fig.10is an end view of a portionof the tail ejector; F1g. 11 is an endview of the arch showing the chute 1 for delivering a severed tail therefrom; and v y r a y q F1gpl2 is a transverse SBOtlODEllVleW"Of the coolmg trough. t

Referringespecially to Fig. .1, the inven tion is shown as applied to a type of stereotype machine in which ayframe A is pro vided w1th a movable back B, and a Cf/i111 drical core C, constituting a" mold. This back is intended to move away from the core to permit the core to turn half way around on its own axis so as to deliver the plate from the back and permit the plate to be taken away from the core. The niechas nisms for operating the core andback are notdescribed hereinyas they do not consti= Forthe purpose ofoperating the machine,

a motor 10 is shown in Fig.2 transmitting on a shaft 31.

power by a flexible chain 11 driven from a pinion 12 fixed to the motor shaft 13 and rotating with it. This chain meshes with a gear 14 keyed to the main driving shaft 15. This shaft has formed on one end a worm 16' meshing with a worm wheel 17, which is keyed to a shaft 18 at one end. A gear 19 keyed to the shaft 18 at its other end, meshes with a gear 20 on a cam shaft 21. 'The cam shaft is provided with a tail ejector groove cam 23 and with a gear 25. This gear operates a gear 26 keyed to a crank shaft 27 for Operating a swinging frame D for delivering the plate from the core.

Meshing with the gear 20 is a pinion 29 On this shaft is a beveled gear 32 meshing with a beveled gear 33 on an inclined shaft 34. This shaft 34 is pro vided with a beveled gear 35 which meshes with a beveled gear 36 on a stud 37, carrying a toothed wheel 38, shown in Fig. 7, the pprpose of which will be described hereina ter.

On the shaft 15 is a worm 40 driving a worm wheel 41 on a shaft 42, which by gears 43 drives an elevator shaft 44 having a pair of worms 45 thereon for operating the elevator.

On the shaft 15 is a worm 46 operating a worm wheel 47 on a shaft 48. This shaft is provided with a worm 49 operating a Worm wheel 50 on an inclined hollow shaving shaft 51 which carries an adjustable shaving blade 59. Passing axially through this shaving shaft 51 is a cutter shaft 52.

his is operated from a shaft by gears .54 and is provided with a beveled gear whiih operates a saw 56 in the manner set forth in my above ldentified application for patent. The shaft 53 is operated by gears 57 from the shaft 15. This shaft is furnished with a handle 58 for operat' machine by hand.

On the shaft 27 is keyed an arm 60 conthe ' nected by a link 61 with the frame D. This frame is swung on a pair of studs 62 mounted above the core in line with the axis of the plate while supported in position for shaving and is provided with supports 63 fcr supporting the rast plate P in a man ner wh ch 1 have des ribed in a co-pending application on machine for casting and delivering curved stereotype printing plates, filed Sept. 16, 1913, Serial No. 790,070.

Upon 821111 rotation of the shaft 27, the delivering device D delivers a cast plate from the core and swings it upwardly about the axis of the studs 62. As this plate moves upwardly, its edges engage a pair of intermediate tra ks. Tliese onsist of a plurality of pairs of pivoted arms 65 and 66 keyed to shafts 67. These shafts are loosely mounted in bra kets 68 attached to the frame A. The normal position of thearms 65 and 66 is such that a plate resting on them is position so that it is capableof properly alined with the finishing arch l" of the machine. They are held in normal position by torsional springs 69. 'lhese springs are loosely coiled around the shafts 67 and attached to the brackets 68 at one end. Each of these springs is attached to a stop lever 70 one of which is keyed to eaLh of the shafts 67 and suitably formed to engage with the foot of one of the braek-- ets 68.

The pivoted arms 66 are formed with projections or tracks 71 at their ends adapted to engage the outside surface of the tail T of the plate so to cause the tail to spread the tracks when the plate is swung up into inclined position. As the plate moves beyond these tracks the springs cause then] to move back under the edges of the plate and support it. Projections 752 on the arms 65 are formed shorter than the projections 71 on the arms 66 so that they will not actually engage the outside curved surface of the plate but will swing under them after the plate moves up into position to serve as temporary tracks. This is to prevent the inarring of the printing surface.

When a. plate is thus left on these intermediate tracks, it is obviously in in lined sliding arch F. l east down by gravity into the finishing As it moves into the arch. a rack on the (0114' ave surfai e of the plate engage" the wheel 38. As this wheel is positively driven at a definite speed, it will be obvious that the plate will be fed downward at that speed as long as the teeth of the wheel engage the rack on the plate. The plate continues to move down into the arch until stopped as will appear hereinafter.

As the plate descends into the arch its edges engage a stationary track 75 along one side of the ar. 11 and a movable track 76 along the other side. These tracks are in alinement with the studs 62 For the purpose of moving this tra k, the following mechanism is provided: On the shaft :27 is a ram 80. This operates a roller 81 adjustably mounted on one arm of a lever 82. A spring 83 is provided for keeping this roller in contact with the cam. The adjustment of the roller is effe:ted by adjusting s rews 84-. Pivotally mounted on the top of the other arm of the lever 82 is a plate 85 adapted to be adjusted verti ally by an adjusting 5 row 86 bearing on the end of this arm of the lever. Passing down through openings in the plate 85 of the lever 82 is an operating rod 87. A spring 88 surrounding the red 87 rests on the plate 85 and engages a collar 89 fixed on the rod near the top. A collar 90 is rigidly fixed to the bottom of thi rod below the lever 82 to prevent the s 'u'ing from disarranging the relative relations of the parts.

The top of the rod 87 is pivoted to a lever igeeegeve 91-keyed to a pivotally mounted shaftQQ.

This lever or arm also pivoted to a rod- 93 :which is connectedby a pivoted stud94a with a lifting arm 95. This arm initurn is 1 pivoted on a stud 96 mounted onthe arch.

The movable track section 7 6 is also pivoted on the stud 94c. Upon; each rotation the cam 80=actuates the lifting lever 95 to cause the same to engage withthe edge of the plate. This pushes the plate into contact with the archwalong one edge and swings it into a firm seat in the arch; Therlast named part. of this mechanism together with the stationary track75 are shown in my above mentioned application for patent but some ofithe operating connections are added thereto. l

The spring '88 acts as a cushion in the mechanism between the cam and the lifting lever, so that any excess motion other than that necessaryto liftthe plate into contact with the arch and hold it there is taken up b thes rin Thead'iilstmentisarran 'ed b it) so 'thatthe compression of the spring canbe ad usted. conveniently to a enitahlejdegree wlthout dlsarranging the relative positloi'is ot' the lever 82 L11Clxtl16 lifting lever 95:

It will be understood inaccordance with my previous application for patent above specified that theuend ol the lifting lever f 95. :is provided with a notch 97 for engaging theedge of the plate and lifting it up into proper position in the arch and that the track- 76 which supports the plate when it is i in its lower position is causedto slidealong a supporting shelf 98 on the frame below the arch.

In accordance also wlth my abovemen tloned previous appllcatlon forpatent, the

shaving blade 59 and tail cutting saw 56 operate to shave out the interior ofthe plate and cut the tail olf.

For the purpose of stopping the plate inf the right place as it descendsalong the archfj supported on the tracks .75 and 7 6, the fol 0n the lowing mechanism is provided: shaft 51 is a cam 102 operating a roll 103.

This roll is mounted on stud on a sliding yoke1104c... The yoke is loosely mounted on a sliding block 105 fastened to a brace constituting a part of the frame-work A otthe machine. For the purpose of keepingthe 3 roll in contact with the cam, a tension spring 1061's provided attached to the brace carrydown them through-the arch.

position therein by the plate 1 lifters just beforethe; shaving blade ;gets around into position toroperating onthe inside or thel plate. p a i The stop is actuated by the canfr tofrijse withthe plateuntil thellatteris held in con-I i tact with the arch and then remove fupa wardly pastthe plate to allowtheshaving knife to rotate clear under the stop. Thenf the stop descends to a positionin which it intercepts theplate as the plate is lowered in the arch back onthe tracks 76, thus preventing theplate from sliding out ofthe Then it de arch during this operation. scends below the edge of the plate so as to allowthe plate toslide out ofthe arch freely by gravity.

fItwill be understood, of coui'se,thatin the discharge of the plate from the arch, it is notaccompanied by the tail WlllClillitS been sci,

3 severed bythe saw 56; .For the purpose of] e ecting the tail, the cam 23* on the 21 ha agroove inwhich operates a roll 110 This arm 113 is pivoted to a tail ejectoryoke 1 15 which has stud I16 attachedto it.

pp The tail ejector yoke 11'5 two a at \vard ly extending armson wh ch are zlooselv .onan arm 111, looselymounted on a shaft 112. Also attached-to thear1n111is1anarm, 113 so thatthesetwo arms constitutea lever.

Thisstud is looselyinounted on the end of a? tail ejector yoke nterim, loosely mounted? mounted apairof studs 119; ()nthese studs arepii oted twotailejector brackets 120 and.

121, each having an inwardly projecting foot 129 for supporting the severechtail.

These arms arespaced widelyaparttoallow the plates to slide down between them into 3 thejarch. The feet 122 are arranged 1111 different heights to givethe tail a slight tilt to one side.

a a p a a The pivotedbrackets and 121a1re each provided with an extension l28wextending below the pivotsand adapted to engage fiXed lugs 12 lfon theyoke to limitthe inward motion of the upper ends of the brackets 120 and 121." Apair of flat springs mfi fixed to the yoke and extend up abo've the pivots 119 against the outer sides of the brackets for the purpose of normally hold 511g said brackets in their innermost posi 115 tioiiswithjtheir projections 123 against the lugs 124: as shown in Fig.10. l I

on'ceduring each rotation of thefsha'ft 21, the tail ejector "yoke 115' is raised; istimed so that this operation takes place immediatelyafter the tailf severetldrona theplateandit brings the feet 122upwardly a under the severed edges of thetail and lifta 3 the latter above the arch. On aecount ot' one foot 122 being higlier thanwthe other,

this swings theitail about oneedge to elem."

the parts within and then raises: its. llhis;

causesthebraeketsuto slide upwardlyalonfg the face of the arch unt llthetailhas pas d the t'ace of *theiarch and isuffree to. slide 91b gravity over the arch as shown in Fig. 9, and along a chute 126 formed on top of the arch to receive'it.

This chute as shown in Fig. 11 extends down along the outside of the arch at an inclination and is provided with a projection 127 on one lower side thereof which one advance corner of the tail T engages as it slides down. This causes the tail to be turned around a quarter of a turn so that one of its straight edges is foremost. Then it slides down an incline 128 which also forms a part of the chute and is at an angle to the upper portion thereof so as to be less abrupt. At the bottom of this incline, one advance corner of the tail engages a projection 129 on the same side. This causes it to turn again so that the heavier of its curved edges is at the bottom. In this wayits descent down the incline is interrupted and it will not gather much momentum. Then it slides by gravity over an incline 130 into a conveyer 131 operatedby the worms 45.-

' which the finished plate slides as it passes into the cooling device. The stereotype plate sets down over this plate 133 and the latter acts as a. stop to prevent the discharge of water beyond the end. At the other end the stereotype plate engages a plate 134 which is yieldingly mounted as indicated. Thus both ends of the printing plate are closed to prevent splashing.

The printing plate in descending into the cooler engages a lever 135 which operates a valve 136 and permits the passage of water into a. pipe 137 which is connected to a spray pipe 138 inside the plate for the purpose of cooling the same. The shaving arch is also shown as being cooled by means of a pipe 140 for supplying the fluid to a chamber 141 therein and having a discharge 142 which supplies the pipe 137. The water from the cooling device is discharged through a drain pipe 143.

.During this time the printing plate is supported on a pair of tracks 145 having inside them a pair of adjustable sizing stops 146 mounted on platforms 147 and adjusted by screws 148. This is for sizing the plate so that the concave surface will be of proper diameter to fit the press cylinder when the plate is cooled. This mechanism is provided because the application of a cooling fluid against the inside of a curved plate causes the concave surface to be cooled first and to'contract. The outside or convex surface retains itsheat longer and does not contract simultaneously with the concave surface. Thus during the cooling process the first action would be to decrease the diameter of the plate temporarily and then as the diameter of the plate becomes uniform throughout, the diameter would increase. The stops 146 prevent this alternate increase and decrease and keep the diameter uniform at all times so that it will fit a cylinder of a press. The usual increase is merely a restoration to normal and is prevented here by eliminating the decrease.

To recapitulate, the operation of the machine briefly is as follows :A plate cast in the casting box is turned on the core to a position outside the box and swung upwardly into the temporary tracks 7 2 which yield to permit the plate to enter them and then swing inwardly under the edges of the plate to prevent its being moved back to the mold upon the return of the swinging frame D. As this frame starts back toward the mold the freed plate moves down these temporary tracks by gravity until the rackteeth cast on its inner surface engage the wheel 38. This, being positively driven, absolutely controls the further passage of the plate down into the finishing arch F.

On entering the arch, the plate rests on the tracks and 7 6 until it engages the stop 107 at the end of the arch and then the cam operates to force the lifting levers up and cause the plate to be clamped in the arch. It is at this time that the shaving blade turns around to operative position and also the tail cutting saw.

As soon as the shaving and tail cutting operations are completed the tail ejector operates to discharge the tail down through the chute into the elevator. At the beginning of this operation the stop, having previously been raised above the plate, now descends and holds the plate in the arch while the lifting levers 95 also descend. Then the stop drops below the edge of the plate and the plate is free to slide out of the arch by gravity into the cooling device. After it is cooled it is lifted from the cooling device by hand. It is to he noted that certain features shown herein are also shown in my companion case of even date herewith, Serial No. 790,070, but are claimed therein only in connection with features of the casting mechanism, the said casting mechanism not being included in the claims in this case. Any matter contained. herein and also disclosed in my prior Patent N 0. 1,269,239 patcnted June 11, 1918, is not claimed herein, as it is claimed in that case. The cooling device by itself is not claimed herein as it is claimed in my copending divisional application Serial No. 207337 filed Dec. 1:). 1917.

Although I hay e illustrated and described only a single embodiment of the invention ineea're andshown it a appliedto the mechanism shown in myabove identified application for patent, I ama'ware Ofthef fact thatmany modifications canbe madein the constructionhereinshowmand that it can he applied to other types of stereotyping machinery i witholit departing from thescope of the in vention as expressed'in the claims There fore, I do not WlSlffO be llmited 1n these re spectsflbut what I do claim is 2- i l. The combination with a support for stereotype printing plate, of a frame adjacent theretohaving means thereon for engaginga plate, and means for moving the from" said support to an inclined position. i

2. The combinationwith a supportfora 3. llhe "combination "with a vertical con vex supportfora concave printingplate, of: 1

a frameipW-oted at the top of said support to swing'on a transverse axis, and means on the-frame forengaging plate on said support and (taking the. plate 'awayifrom ."the

pport with the frame. 2

4:. Thecombination with a ver-tical' 'cona vex support for a concave printing plate, of 'a 'swing1ng frame pivoted at the top of i said support in line with the axis thereof to swing 'on'a transverse axis, and means on the swinging frame for engaging a plate on said supportand taking the plate away from the support with the swinging frame. 5. In -a machine for finishing stereotype printing plates, the combination with a support for a concave printing plate, of a frame 1 mounted adjacent thereto and movable away from the support at one end through a small angle, means "on said frame for engaging e atheplate and separating it from said'support when the frame moves away from the support, anditracks in alinement with said separating means in its final positionfor receiving the plate frommsaid separating means. a

6. Ina machine for finishing stereotype printing plates, the combination with a frame, and meansconnected therewith for chine, the combination of theframe, a pair 120 itoward each 'other, meansfor moving the I projecting ends of the tracks inwardly to engage under the edgesofflthe plate, and another pair of=trackshaving inwardly ex i tending feet shorter qthanithe feet: on the 125 first named tracks to: prevent their engag engaging "a plate supported on asupport and positiongto engage andsupportthe plate.

' 7. In a machine for finishingstereotype printing plates, the-Ycombination with a frame, ofm'eans thereon for engaginga plate "while on a convex support, means for mov-.

ing said frame away from said support, and yielding tracksin position to receive the edges of said plate between them and to close upon theplate after it has passed them,

at whereby when the swinging frame is moved removing it therefrorm'of yieldingtracks in top of said frame, with a plate thereon, away back the plate will hedisengaged therefrom by thetraclcs. a 8; y The combinationwitlr a vertical convex support for a concave printing plate, of a swii'iging frame pivoted atthe end of said support to swingona transversenXis, and means on the swinging framefor engag nga plate on said support and takingthe plate away from the supportwith the swinging frame, and inclined tracksin alinement with ceiving the plate'therefrom 9. Ina machine f0r-fin1shing stereotype printing plates, the combination with framefor conveyiiiga'curved printin g plate, i witha setoftraciks for receiving the plate from said frame, said tracks comprisingpivoted members, yielding means for normally holding said memberssubstantially in the path of travel of theedgeslof the plate,*

whereby when the plate moves between the traclrs it will swing themaway from each other and permit them to swing biaclz under theedges of the: plate to support it. 10. In stereotype platef finishing ma chine, the combinationof the fra me, a-pair l of shafts mounted 'toturn on"the frams, a

of tracks on said shafts and having feet ex- "the tracks and force them apart, springs for pair of tracksfsupported 'bysaid shafts and p t having feet extending inwardly toward each other, and means fon moving theconvex gs surface of the plate inwardly?betweensaid projectingportions of the tracks, whereby w thef'plate will engage the tracks and force them a'partyand means for moving the pro i jeoting ends of the tracks inwardly to en gage under the edges'o f the plate.

11. In a stereotype plate finishing ma-- chine, the combination ofthe frame, a pairof shafts mounted to turnonthe frame, a pair tending inwardly toward each other, means for moving the convex surface of the ]i )late Y inwardly between saidprojecting portions of the tracks, whereby the plate will engage i moving the proj ectingends of the tracksinwardly to engage under the edges of the plate, and another air of tracks fixed to the-same shafts and havinginwardly extendingfeet shorter than the feet on the 115 first named tracks to prevent their engaging the 'typeisurface of the plate; 12. In a stereotype plate finishing maof i tracks having feet extending inwardly chine," the combination of a pivoted arm having: transverse 1 projection on the end thereof, yielding means for swinging said arm in the direction in which the projection extends from it, means for limiting the swinging motion in that direction, whereby when a plate is moved against said arm the arm will yield and will thereafter move beyond the edge of the plate and serve as a support therefor.

14. In a stereotype plate finishing machine, the combination with an inclined arch and finishing mechanism therein, of means for moving a plate from a vertical support, and an intermediate track inclined toward the arch and in position for receiving the plate from said removing means and directing it into the arch, said intermediate track comprising swinging arms having projections for engaging and supporting the plate, and yielding means for holding the arms in position to engage the plate.

15. In a stereotype plate finishing machine, the combination with an inclined arch and finishing mechanism therein, of means for moving a plate from a support, and an intermediate track inclined in line with the arch and in position for receiving the plate from said removing means and directing it by gravity directly into the arch.

16. In a stereotvpe plate finishing machine, the combination with an inclined shaving arch, of inclined tracks beyond the entrance of said arch for directing plates thereto, a toothed wheel between the arch and tracks, a shaft, means connected with said shaft for finishing the plate in the arch, and means connected with said shaft for operating said toothed wheel positively.

In a stereotype plate finishing machine, the combination with an inclined arch for receiving a plate to be finished, means connected with said arch for finishing the plate while in the arch, a toothed wheel adjacent to the entrance to the arch in position to engage a plate while under the arch, and means connected with the finishing means for positively controlling the rate of descent of the plate in the arch.

18. In a stereotype plate finishing machine, the, combination with an inclined shaving arch, means connected therewith for finishing a plate, and means adjacent to the upper end of said arch for positively controiling the speed of the plate entering the arc 19. In a machine for finishing stereotype printing plates, the combination of an inclined shaving arch, with a pivoted plate lifting device therein, means for operating the plate lifting device, a spring in said plate lifting device cooperating with said. means, and means for adjusting the compression of the spring.

. 20. Ina stereotype printing plate finishingmachine, the combination with an arch, a plate lifting lever in the. arch, a rod. for

operating said lever, a lever for operating the rod, a spring between the last named lever and the rod, a plate movably mounted on the last named lever for engaging the end of said spring, and means for adjusting the position of the plate along the rod.

21. In a stereotype printing plate finishing machine, the combination with an arch and a plate lifting lever therein, of a rod pivotally connected with said lever for operating it, a cam lever, a plate pivoted on the cam lever, said rod passing through said plate and cam lever, a spring resting on the plate at one end, means at the other end of said spring for transmitting its pressure to the rod, and means for adjusting the plate about its pivot 'and along the rod.

22. In a stereotype printing plate finishing machine, the combination with an arch and a plate lifting lever therein, of a rod pivotally connected with said lever for operating it, a cam lever, a plate pivoted on the cam lever, said rod passing through said plate and cam lever, a spring resting 011 the plate at one end, means at the other end of said spring for transmitting its pressure to the rod, means for adjusting the plate about its pivot and along the rod, a washer fixed on the rod beyond the cam lever, a cam for operating the cam lever, and a roll fldjllStEL? bly mounted on the cam lever for engaging the cam.

28. In a stereotype printing plate finishing machine, the combination of an inclined arch for receiving a plate to be finished, a finishing device extending into the arch, a stop at the bottom of the arch, and means for moving the stop into a position to engage a plate as it enters the arch, then lifting the stop along the face of the arch and beyond the inner edge of the plate, and for then drawing the stop back below the edge of the plate.

24. In a stereotype printing plate finishing machine, the combination of an inclined arch for receiving a plate to be finished, means in the arch for receiving the plate and for thereafter raising it in the arch in order to be finished, and then dropping it back to its original position to be discharged, a stop, and means for moving the stop into a position to engage the lower edge of the plate when it first enters the arch, raising it with the plate as the plate is raised in the arch and beyond the inner edge of the plate when the plate is in its highest position, and thereafter withdrawing the stop with the plate as the plate descends in the :arch, and drawing it down beyond the inner edge of the plate to permit the plate to be discharged from the arch.

25. In a stereotype printing plate finishing machine, the combination of an arch for receiving a plate to be finished, means for severing the tail from the plate, and means for thereafter lifting the tail along the upper face of the arch and discharging it therefrom. y

26. In a stereotype printing platefinislr ing machine, the combination of an inclined edges of the tail and lifting them to discharge the tail.

27. In a stereotype plate finishing machine, the combination with a shaving arch,

and means for severing a tail from a plate at the upper face of said arch, of a tail ejector yoke, brackets on said yoke for engaging the straight edges of said tail. and

means for raising said yoke to lift the tail along the face of the arch and discharge it therefrom. y

28. In a tail ejectingdevice for a stereotype plate finishingniachine, the combina tion of a reciprocable yoke, and a pair of brackets pivotally mounted on said yoke projecting inwardly and having feet on the ends thereof for engaging and supporting the straight edges of a tail.

29. In a tail ejecting device fora stereo; type plate finishing machine, the combination of a reciprocable yoke, a pair of brackets pivotally mounted on said yoke project ing inwardly and having feet on the ends thereof, for engaging and supporting the straight edges of a tail, yielding means for forcing said brackets to swinginwardly on their pivots, and positive means for limiting said inwardly swinging motion.

30. In a tail ejecting device for a stereotype plate finishing machine, the combination of a movable yoke having upwardly extending arms to permit the passage of a printing plate through the yoke, brackets pivoted to the tops of said arms and extending upwardly and inwardly therefrom, and means on. the ends of the brackets for supporting the tail of a plate.

31. In a stereotype printing plate finish ing machine, the combination with an in clined arch for receiving a plate to be finished,'1neans for finishing a plate in the arch and for simultaneously severing the tail from the plate, and means for thereafter liftlng the tail alongthe upper face of the tail. from the plate, means for thereafter liftingthe tail along the upper face of the arch and discharging it therefrom, and a chute extending down along the arch for recelving the tall, saidchute havingineans for turning the tails as they descendtherethrough by gravity.

33. In a stereotype printing plate making severing the tail from a plate, of, an inclined chute in position for-receiving the for receiving a P e, means severing the i i machine, the combination with means for 1 I 34. In a stereotype plate finishing ma chine, the combination with an inclinedrfinishing arch, of a cooling device arranged at. the lower end thereof to receive plates therefromfand having tracks at an angle to the inclination of the arch for supporting the edges of the plates throughout their length. j i

35. Ina machine for finishing stereotype printing plates, thecombination with an inclined finishing arch, of a cooling device for the plates having straight horizontal tracks for receiving the plates from the arch and supporting their edges.

witnesses. i r

HENRY A. WISE WOOD. Witnesses: r

B. M. Sronnnn,

LILLIAN C. JONES.

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i y In testimony whereof I have hereuntoset I my hand, in the presence of two subscribing

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