USRE13633E - A corpo - Google Patents

Description

H. A. W. WOOD.

STEREOTYPE PRINTING PLATE FINISHING MECHANISM.

APPLICATION FILED AUQJ. ma

Reissued Oct. 21, 1 913.

H. A. w. W001).

STEREOTYPB PRINTING PLATE FINISHING MECHANISM.

APPLIOATIOII rnlnn mme, 1913. Relssued Oct; 21, 1913. Y

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APPLICATION rnnn new, 1913.

Reissued Oct. 21, 1913.

H. A. W. WO0D.. STEBEOTYPE PRINTINGVPLATB FINISHING MECHANISM.

. APPLIUATIDN FILED AUG.9, 1913. I Reissuad Oct. 21, 1913. 13,633.

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STBBBOTYPE PRINTING PLATE FINISHING MECHANISM. APPLICATION FILED AUG.9, 1913.

Reissued Oct. 21, 1913. 13,638,

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APPLIUATIOH FILED AUG.9,1913. Re1ssued Oct. 21, 1913.

H. A. WwWOOD. STEBEOTYPB PRINTING PLATE FINISHING MECHANISM.

V nrmuumx FILED AUG.9, 1913.

Reissued Oct. 21, 1913.

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STATES PATENT OFFICE.

HENRY A. WISE WOOD, OF NEW Y O RK, N. Y.,' ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE .AUTOPLATE COMPANY OF AMERICA, 01 JERSEY CITY, NEW JERSEY, A. CORPO- n'nnon on NEW JERSEY.

STEREOTYPE-PRINTING-BLATE-FINISHING MECHANISM.

Specification of Reissued Letters Patent. Reissfled Oct, 21, 1913.

Original application flied March 12, 1900, Serial No. 8,384. Divided and application filed March 14, 1903,

August 9, 1913. Serial No. 788,988.

To all whom it may concern:

Be it known that I, HENRY A. WISE Wooo, a citizen of the United States, residing at New York, in the county of-New York and State of New York, have invented a new and useful Stereotype Printing-Plate-Finishing Mechanism, of which the following is a specification.

This application for patent is a division of my original application for patent filed March 12, 1900, Serial No. 8,384.

In the patent granted to me February 17, 1903, No. 721,117, I have shown, described and claimed what I believe to be the first "organized automatic machine for casting .in ursuance of a Patent Ofiice requirement,

an covers the specific details of the improved finishing mechanism.

The accompanying eight sheets of drawings show enough of the complete machine to enable the improved details of the finishing mechanism to be understood.

Referring to said drawings, and in detail,

Figure 1 is a side elevation of the mechanism as a whole. Fig. 2 is a plan, and Fig. 3 an end view ofthe sliding rack-bar and head for moving the plate forward. Fig. 4 is a detail showing the engaging piece on said head. Fig. 5 is a detail showing the adjusting screw thereof. Fig. 6 is a section taken on the line 2 of Fig. 1 looking toward the finishing mechanism. Fig. 7 is a detail of thegearing. Fig.8 is a detail view of the flexible means used to prevent the saw-dust flying back into the casting mecl1 anis'm. Fi 9 is a plan view of the belt used to drive the saws. Figs. 10 and 10 are plan views of the saws. Fig. 11 is a side view of-one of the saws. Fig. 12 is a crosssectionalview illustrating the position and arrangement of the saws. Fig. 13 is a detail of the plate showing the way the same is finished or trimmed by the saws.

Fig. 14

Serial No. 147,793. ,Original Nd 1,009,271, dated November 21, 1911. Application for reissue filed plat in the arch. Fig. 16 is a plan-view partly in section on an enlarged scale illustrating the adjusting mechanism for the stop. Fi 17 1s a cross-see 'onal view 'illustrating t e clamping mechanism for holding the plate in the arch. Fig. 18 is a detail of the spring clamping-jaw. Fig. 19 is a plan, Fig. 20 a front elevation, and Fig. 21 a side elevation of the finishing tools. Fig.

2 is a plan, Fig. 23 a partial side elevation, and Fig. 24 a rear elevation of the delivery stand and second conveyer.

-The mechanism comprises a casting cham ber formed by the annular space between a cylindrical core and a segmental back, in which the plates'are cast from a flexible matrix. Each plate as soon as it has solidi fied is delivered from the casting chamber by a half revolution of the core. The plate is then detached from the core by a suitable lifter mechanism, whichelevates the plate above the core. A first conveyor then takes the plate and moves the same axially over a guiding device past saws, which trim up the straight ends of the plate, into an arch. The plate is clamped in the arch, and its inside orconcave surface and its curved ends are then finished off by suitable tools. A second conveyor then moves the finished plate axially out on-a delivery stand.

The present application covers improvements in the mechanism which finishes the plate, so that the samecan operate efliciently at a high speed. Referring to the drawings, and in detail,

C designates the core, and B the back of the casting apparatus.

' Each plate after it has been removed from the casting chamber by a half revolution of the'core is raised by'a suitable lifter, so as to come in line with a guiding device 233' the edges of the plate.

sm lifj'ibur a. aatiiga hab ts grooves, "'and guides 238 are arrangedto project. fronn the 1 frame 233, "so. that the plate willbeguided very accurately during and after the sawing operation. The saws are driven by a belt 239 from pulley 240. The beltisled around idler pulley 241, then around the pulleys. 242 on the shafts which.

carry the saws, and then around an idler ,243. The idler pulley 241 is journaled on astud 244Lproject'ing up fromlarod 245 which is mounted to slide in a bearing 246 A spring'247 is arranged between said bearing, and .iskept under tension by check-Q nutsl248 threaded onthe end of said rod 2&5. By this means the belt 239 will be kept undertension. The shafts of the saws are provided with fly or balance wheels 249.

By this arrangement the belt will be keptunder a tight springitension, and the mo:

' mentum of the flyvor balance wheels will keep the saws evenly in operation as, they strike the plate.

. l The sawsturn 1n opposltion to the ad- I vancing movement of the plate. The saws are preferably boxed up or mounted. in suitable casings 250, and suitable chutes 251, see Fig. 1, are provided so that the strips or shavings cut off by the saws will be carried out clear of the machine. Brushes or o flexible means 252 are arranged between the casting mechanism and the saws to bear firmly on the plate as the same passes by the saws, so as to prevent the saw-dust raised v by the saws from passing back into the casting mechanism or clogglng the various gearings-of the machine. The conveyer forsliding the plate from over the core or cylinder past the saws and into the. arch hereinafter described, consists of ,a .sliding rack-barj253 fittedto slide in suitable guides 254. The

rack-bar is given a reciprocating motion by a gear,255 whichls actuated as hereinafter described. The said rack-bar engages a pushing-head 256 which is fitted to slide on ars ,257, see Fig. 3. The pushing head is provided with notched-engaging bars 258 for engagin the end of the plate, see Fig. 4. The Jacki I pushing-head 256, and is held in place thereonby gibs 259, see Figs. 2 and 3. The end of the rack-bar has a, downwardly project.-

ing car 260, tappedfinto which'is a screw.

261- which is arranged inposition to strike .on the pushing-"head. Projecting up from the rack-bar is a sto 262, engaging which are the free ends 0 bell-crank-levers 266 ther ar. 253 isloosely fitted on said,

which are tiecl together by 264. This arrangement. provides for a lost motion between the rack-bar-and the pushing-head.

When the pushing-head is brought to its extreme point "of travel at the end of the machine, the same will strike onthe framing, and the continued motion of the sliding-rack-bar will simply actuate the bellthe point at which the plate will be leftv by the pushing-head can be accurately determined. The bell-crank-leve'rs and .the springs before mentioned provide a mechanism so that the pushing-head can dwell in its position farthest away from the saws, sothat the plate can turn up into position in front of the pushing-head. This dwell will be for some little period of time, as the sliding-rack isactuated by a crankmotion, as hereinafter described. As the plate is moved by the pushing-head past the saws SS it passes into an arch U.

'A stop 265 is arranged at thedelivery end of the arch. This stop has ears pivoted on the end of levers 2.66, whichv have pins 267 engaging cam grooves 268 outin the slidingrack-bar 253. Theseparts are so arranged that the stop will move down as the plate enters the arch, so that the 'platewill be brought up against it by the conveyer and accurately positioned in the arch, so that it can be properly acted upon by the finishing mechanism hereinafter described. The cam grooves will lift the stop 265 out of the Way as soon as the plate is positioned as hereinbefore described. A framing 269 is-secured on the end of the arch. In this framing is arranged a wedge 270 which engages an inclined face on said framing 269-. A'screw 271 is tapped into, said framing 269, and the same carries a collar 272 engaging a groove cutin said wedge. The wedg'eis arranged tobear on the back of the stop 265which is pivoted on its le"ers 266. By adjusting the sorew 271-the wedge can be adjusted back and forth, and hence the position of the stop can be'very accurately adjusted. By this means the plate can be registered in the arch, that is, centered exactly so that the edge finishing tools hereinafter mentioned may work exactly upto the type face of the plate without destroying the edges thereof. As the plate passes into the arch, it is guided on one edge by guide 273 which engages the edge of the plate, and at its other edge by an extra spring-guiding jaw 274 which engages the groove'236 in the plate, and holds the plate so that the type face'or edges thereof will not be marred or rubbed against the arch asthe plate 'inoves into the same. This extra jaw274 is arranged in a'clamping jaw 275, andisheld. in place between the same and the end ofthe arch by means of pins 276 which engage slots 277 in the extra jaw. Springs 278are provided to keep theextra jaw normally in its raised position.' The clamping jaw 275 is fitted to an ear or ledge 279 pro ecting down from the arch. The extra spring-jawis arranged so that it will strike on the edge ofthe arch as the clamping-jaw 275 moves up, so that the plate will be lifted off of the extra clamping jaw 274 and clamped by the jaw 275. A shaft 280 is arranged below the arch. The same carries a cam 281, bearing on which is a roller 282 arranged upon an arm 283 secured on a shaft 284. The shaft 284 is provided with a 'finger 285 which engages check-nuts 286 threaded on a rod 287 secured to the clamping-jaw 275. The clamping-jaw is provided with two rods 288 which are fitted into hollow screws 289 threaded 'into ears 290 formed on the framing below the arch. Strong springs 291 are arranged on the rods 288 between the clamping jaw 275 and said screws'289. By this construction the clamping jaw 275 will be normally pushed up by the strong springs 291, the tension of which may be adjusted by the hollow screws289.

When the high face 292 of the cam 281 strikes the roller 282, the clamping jaw will be forcibly moved down, but when the low face 2920 of the cam strikes said roller 282 the clamping jaw will be moved up to clamp the plate by said springs 291. Thus a spring relief is obtained in the clamping mechanism. The cam 281 is geared to operate so that the clampin jaw will be in its lowermost position as t e plate passes into the arch, and so that when the plate is in the arch, the plate will be rigidly clamped so that the finishing too-ls can operate on the inside and edges of the plate.

293 designates a shaft which is journaled concentrically of the arch. Arranged on the same is a suitable arm 294 which carries a knife 295 for smoothing or trimming the ribs formed on the inner side of the plate. Secured on said arm 294 are brackets 296, in which is journaled a roller 297 which is arranged to bear on the inner side of the plate back of the knife 295 so as to smooth out and roll down any irregularities left by said knife. Edge finishing tools 298 for the plate arealso arranged on said arm 294. These edge finishing tools are arranged to cut off the small bur left on the end of the plate'between the end rims and the type, and. also to just cut ofi the sharp edge or corner on the edge of the plate bevel. A brush or flexible means 299 is arranged to clean the knife 295, and theto'ols, as they.

rotate past the same, so that no chips orshavings will be left thereon to mar or deface the inner surface of the plate.

When the finishing operation is completed, a conveyer 300 moves into the arch This conveyor has a notched engaging piece 301. When this conveyer is wholly within the arch, and the piece 301 is beyond the end of the plate, the clamping jaw 275 releases the plate, allowing a drop of the plate, so that the forward motion of the conveyer pulls the finished plate out upon a delivery stand H. This second conveyer is actuated by a gear 302 which has an oscillating mo tion imparted to it as hereinafter described. Two independent conveyers are thus used; one to transfer the plate from over the casting mechanism past the saws into the arch, and the other to transfer the plate from the arch and deliver the same. By this arrangement as the first conveyer must move a long distance the same can have a powerful motion given to it, to push the plate positively past the saws, while the second conveyer need only have suflicient power to convey the plate from the arch to the delivery stand a short distance. By making the first conveyer work above the plate, and the second conveyer below the plate, these motions can be obtained. Also by this construct-ion the inner surface of the arch does not have to be cut into, whereby the convex or delicate printing-face of the plate is subjected to a smooth surface.

The arch U is made hollow, as shown in Fig. 17, and suitablewater pipes 303 are arranged to circulate water through the same. It is especially desirable to water-jacket the arch, as by doing this, the same will be prevented from heating and losing its shape, and the plate will be cooled as far as is possible. By keeping the arch in exact shape the plate will be very accurately finished and forced to precise cylindrical shape as it receives the final operation.

, The gearing foractuating the various parts will now be described.

304 and 305 designate the usual tight and l'oosepulleysby which power is applied to the machine. A lever 306 carrying belt fingers 307 is arranged to shift the belt from one pulley to the other. The lever 306 has an extending arm 308 which engages a pivoted lever 309, which carries a brake-shoe 310 which bears on a fiy wheel 311, so that when the belt is shifted on to the loose pulley, the brake-shoe will engage the fiy wheel and quickly stop the machine. Suitable belt-tighteners 312 are arranged above the tight and loose pulleys.

The lever 306 connects by link 314 to a lever 313 arranged on a shaft 315 which extends along past the castingmechanism' so that the operator standing near the casting mechanism can control the starting and stopping of the machine as is more particularly shown and describedv 1n my orig nal,

Thisshaft 320 has a pinion 321, which,

by means of intermediate 32;, drives a gear 323 secured on. the cam-shaft 74, from which cam shaft various parts of the casting mechanism are driven, as more particularly shown and described in my original application for 1atent. Also-arranged on the shaft 320 is a pinion, 324 which engages a' gear 325 mounted on a stud and carrying a pinion 326. This pinion 326 engages an intermediate 327, which latter meshes. with and drives a gear 328 on the cam-shaft 280. The gear drives a gear 329 on the shaft 293 which carries the finishing tools. The shaft 317 is carried across the machine, and carries a miter-gear 332 which engages another miter-gear on av short shaft 334, which carries a miter-gear at its end which meshes with and drives a miter-gear 336 on the vertical shaft 337 on which the pulley 240 which drives the saws is arranged.'

The cam shaft H is provided with a bevelgear 338 which meshes with a bevel-gear 339 on a short stud 340. A crank-arm 341 is arranged to turn with bevel-gear 339, and actuates a, sliding-rack 3&2 which is fitted to slide in a frame 343 pivoted on shaft 344. The said slidingrack 342 engages a pinion fitted on said shaft 3 1-1. The gear 255 which engages the sliding ack bar 253 is arranged on the other end of the shaft 344. By this arrangement the first conveyor Will be given a crank-actuated reciprocating motion. Another bevel-gear 3&6 is arranged on said cam-shaft 74, and engages a bevel-gear 3%? arranged on a short shaft 348. A crankarm 34-9 is arranged on the end of this shaft 348 and actuates a sliding rack 350 mounted to slide in a. frame hung onshaft 352. The said sliding-rack frame engages a pinion 351 on said shaft 352, and the gear 302 which engages the second conveyer 300 is also arranged on this shaft. By this gearing, the second conveyor will have a crankactuated reciprocating 'motion thereto. This gearing is arranged so that the parts will operate synchronously to ac complish their respective functions, as previously described, the cam-shaft 74 making one revolution for each complete cycle of operation. As thus arranged, the Inechanism has been brought to work in a commercial way at. the speed before indicated.

The operation of the entire mechanism has been so fully detailed in describing the re-' spcctive Jarts' that thesame can readily be followed.

Many other arrangements and details can be Worked out for accomplishing the operaimparted veyer for moving the plate past the saws,

and cutting disks for cutting a guiding groove in the plate near each edge thereof. 2. The combination in a stereotype printing plate finishing mechanism, of saws for cutting off the edges of the plate, means for moving the plate past the saws, cutting disks for cutting a small guiding groove near each edge of the plate, and rollers or shoes for engaging these grooves to guide the plate.

3. The combination in a stereotype printing plate finishingmechanism, of saws, cutting disks turning therewith for cutting grooves in the plate, rollers for' engaging underneath the edges of the plate before it passes to the saws, and rollers for engaging the grooves cut in the plate after it leaves the saws. v

4. The combination in a stereotype casting and finishing mechanism, of a saw for the edge of the plate, means for moving the plate past the saw, and flexible means arranged between the casting mechanism and saw to bear on the plate to prevent the dust from passing back into the casting mechanism.

5. The combination in a stereotype casting and finishing mechanism, of saws for cutting off the edges of the plate, means for moving the plate past the saws, and flexible means bearing on the plate to preventthe dust passing back into the casting mechanism. p

6. The combination in a stereotype printing plate finishing mechanism, of the arch, tools for finishing the plate when in the arch, means for moving the plate axially into the arch, and a stop for accurately determining the position of the plate in the arch. y p

7. The combination in a stereotype printing plate finishing mechanism, of the arch, a conveyer for moving the plate axially into the arch, an adjustable stop against which. the plate is moved by the conveyor, and means for clamping and finishing the plate in the arch.

8. The combination in a stereotype printing plate finishing mechanism, of the arch, a conveyer for sliding the. plate axially into the arch, means for clamping and finishing the plate in-the arch, a movable stop against which the plate is brought, connections between the conveyor and stop for actuatmg the latter, and means for movlng the plate out of the arch after ithas been finished.

ing plate finishing the arch, and an extra spring guiding jaw for guiding the plate into the arch, so that the type face or edges thereof will not be marred or rubbed against the arch as the plate is moved into the same.

11. The combination in a stereotype printmechanisim-of the arch, means for moving the plate into the arch, a clamping jaw for clamping the plate in the arch, and a spring guidingjaw arranged in the clamping jaw for accurately guiding the plate into the arch.

12. The combination in a stereotype print ing plate finishing mechanism, of a waterjacketed arch, means for moving a plate into the arch, means for clamping the plate in the arch and finishing the same, and a conveyer arranged to move into the arch underneath the plate for delivering the plate from thearch.

13. The combination in a stereotype printing plate finishing mechanism, of the arch, means for moving the plate axially into the arch, a stop for determining the position of the plate in the arch, means for clamping the plate in the arch and finishing the same, means for delivering the plate from the arch, and means for operating the stop so that the same will be moved out of the way as the plate is delivered from the arch.

14. The combination in a stereotype printing plate finishing mechanism, of means for holding the plate, a knife for truing out the inside of the plate, and a roller for smoothingthe plat-e after it has been trued.

15. In a plate finishing device, the combination ofta feed device along which the plate travels, an end finishing cutter, a stop for the plate adapted to engage the surface to be finished by said cutter and arrest the plate, and means for moving the stop out of the path of said cutter.

16. In a plate finishing machine, the combination of a feed device, along which the plate travels, an end finishing cutter, a stop for the plate adapted to engage the surface to be finished by the cutter and arrest the plate, means for moving the stop out of the and means for holding path of the cutter,

said plate in position while the stop is out of contact therewith.

17. A stereotype finishing apparatus C0111- prising means for engaging a portion of a stereotype plate and positioning the plate within the finishing means, said finishing means also comprising a member which is capable of removing that portion of the plate which is engaged by the positioning means while the plate is positioned in said finishing means.

18. A stereotype finishing apparatus comprising means for engaging a portion of a stereotype plate and positioning the plale within the finishing means, saidfinishing means also comprising a member which is capable of removing the portion of the plate by which the said plate was positioned during the finishing operations.

19. An apparatus for finishing stereotype printing plates comprising an arch, means for confining hot plates therein. means for trimming the edges thereof while hot, and

means for simultaneously applying a cool-' ing fluid to the arch.

20. In combination, a supporting frame, a shell mounted thereon, plate finishing mechanism, means for operatively moving said shell and plate finishing moans rela tively to each other, and means for supplying cooling fluid to said shell.

21. An apparatus for finishing hot semicylindrical stereotype printing plates co1nprising an arch or shell, means for confining the plate thcrein so that its type face will be in contact therewith, means for circulating water through the arch to cool. the same, and means for finishing and shaping the plate while confined in the arch where by its type face will be chilled during the finishing and shaping operation.

22. An apparatus for finishing hot semicylindrical stereotype printing plates comprising an arch or shell, means for confining the plate therein so that its type face will he in contact therewith, means for circulating water through the arch to cool the .same. and means for sharing the inside of the plate and pressing the same into exact shape while confined in the arch whereby its type face will be chilled during/the finishing and shaping operation.

In witness whereof I have hereunto set my hand in the presence of two subscribing witnesses.

HENRY A. WISE IVOOD.

Witnesses LILLIAN C.- Jonas, LLEWELLYN LLOYD.

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