US1129947A - Stereotype-plate boring and cutting machine. - Google Patents

Description

H. P. BEGHMAN.

STBREOTYPE PLATE BORING AND CUTTING MACHINE.

APPLICATION FILED MAR. 15, 1909.

Patented Mar. 2, 1915.

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H, F. BEGHMAN.

STBREOTYPE PLATE BORING AND CUTTING MACHINE.

APPLIOATION FILED MAB..15, 1909.

Patented Mar. 2, 1915.

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We hmooeo H. P. BEGHMAN.

v STEREOTYPE PLATE BORING AND CUTTING MACHINE.

APPLICATION FILED MAR..15,1909.

Patented Mar. 2, 1915.

4 SHEBTSSHEET 3.

198 hmomzo A H. F. BEOHMAN.

-STEREOTYPE PLATE BORING AND CUTTING MACHINE. APPLICATION FILED MAB.15,190;J. 94 Patented Ma112, 1915.

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STEEEOTYIPE-PLATE BORING AND CUTTING MACHINE.

Licaaat.

Specification of Letters Patent' watentedaritdhlth.

Application filed March 15, 1909. Serial No. 493,578.

To all whom it may concern:

Be it known that ll, HENRY-F. BEGHMAN, of Battle Creek, in the county of Calhoun and State of Michigan, have invented certain new and useful Improvements 1n Stereotype-Plate Boring and Cutting Ma chines; and I hereby declare that the rjollowing is a full, clear, and exact description thereof, reference being had to the accomfiled March 15, 1909." Such plates are sub stantially tubular in form and are preferabl but one page in width and one pagein ength and are adapted to substantially surround the entire circumference of the plate cylinder in the press, which cylinders are of very small diameter. It is necessary that such single page tubular plates should fit accurately upon such plate cylinders, and should be trimmed to exact length; andthe objects of the present invention are to bore such plate, or dress it internally, to the exact diameter. requisite to cause it to fit snugly on the plate cylinder; to cut oil the I head of metal formed on one end of the plate in the casting operation; and to trim such end of the plate accurately so that when the plate is put on the cylinder it can be readily securedin correct position, and will print uniformly on the web. I

The present invention therefor embodies novel. means for holding and rotating the plate while'being bored and trimmed; novel tit means for operating the boring tools; and novel means 'for'cutting thesurplus metal head oil of the plate, and for trimmingand beveling its. end.

In the accompanying drawings T have illustrated a machine embodyingthese features, and-the description of such machine will impart a clear understanding of the in vention, and the claims summarize the invention and featuresthereof for which protection is desired.

Tn said drawingsl igure 1 is a front elevation of the machine showing a plate: in

position for trimming. Fig. 2 is a plan view-of Fig. 1. 'Fig. 3 is a transverse section on line 3-3, Fig. 2. 4 is a longitudinal section on line 4-4;, ig'.'2, transverse section on line 5-5, lfig. 2. Fig. dis a detail view of one of the clutch memhere. Fig. 7 is a transverse section on line 7,7, .Fi'g. 2. h Fig. 8 is a plan view of the longitudinal rib'detached. Figs. 9 and 10 65,

areldetail views of the cutting and trimming too V Mounted on a supporting frame or table 1 of any suitable. form are a pair of axiallyalined bearings 2, in which is rotatably 1ournaled a hollow cylinder, or tubular plate holder 3,. whose internal diameter is exactly equal to the external diameter of the finishedtubular stereotype plate, when fitted on the cylinder, andv whose length is slightly less than the length of such plate. The bearings 2- may conveniently be cast integral with a base plate 2 so that they can be readily fastened to the frame 1.

On one end of the cylinder or plate-holder 3 is a gear 3 which meshes with a pinion 4: on a shaft 4:- journaled in a, bracket 1 attached to the frame 1, the shaft 4 lying at one side of theaxis of thesleeve and parallel therewith; and pinion 4 on shaft 4 in turnmeshes with a pinion 5 on a shaft 5 journaled. in a bracket l attached to the frame 1; shaft 5 lying parallel with the plate-holder 3, at one side 01'' thebearings 2. Shaft 5 is provided'with a pulley 5 which can be'belted to any suitable driver. In this manner the plate-holder 3 can be rotated in the bearings 2.

The plate-holder 3 is provided with a longitudinal rib 3 on its inner face,- said rib forming an abutment for one edge of a tubular plate P when the latter is inserted in. the plate-holder, as shown. This plate P as will be seen by reference to Fig. 3 is tubular, but has a narrow longitudinal slot 7) .at one side which equals the distance between consecutive impressions to be made on the Web. When a plate P is placed in the cylinder-its slot 79 registers with the rib 3".

lPivoted on tl1e plate-h0lder 3 interme- 103 diate the bearings 2, are two plate clamps, which as shown are preferably shaped like bell-crank levers, whose short arms 3 projectthrough slots in the sleeve and lie in n tches in the bar 3",- While their outer arms Fig. 5 is a 60 arms 3 and lie close the plate-holder. These clamps havetrunnioiis fl fwhich are confinedin slots in the plate-holder by means of straps 3. Through the outer ends of arms 3 are tapped thumbscrews 3 which bear against the surface of the plate holdemjand these arms 3 are engagedaiid normally held down by 3* attached to the exterior' oftheplateholder. Whenthe serewsifl are; loosened springs 3 rock the clamps on their pivots 3 and hold armsfi 'retracted into the notches intheba'r 3"; but-if the" screws 3? are turned inward the clamps can berocked so asto project arms 3' beyond the edge of the bar 3", (see Fig. 3.) ,Before'a plate P is slipped into the plate-holder 3 the screws 3 are loosened,and arms 3are retracted as described; then the plate P can be slipped into the plate-holder, the bar 3 occupying the slot 79 in the plate ;then the screws 3 are turned inward causing arms 3 to engage the plate atone edge of the slot ,2), and tend to turn the plate in the plate-holder, but this rotary movement of the plate is prevented by the engagement of the other edge of the slot 7) with the opposite side of the bar 3', consequently the plate P will be expanded within and against the inner surface of the plate-holder 3, and will be securely clamped in this expanded position; and while the plate is so held the plateholder is rotated, thereby rotating the plate, and during such rotation the boring and trimming operations are effected as hereinafter explained.

The plate-holderB is preferably lined internally with a copper sheet, indicated at 3, the outer edge of such sheet being spun up against the end of the plate-holder; such copper lining reduces the friction and prevents scratching the surface'of the plate P while being slid in or out of orexpanded within, the plate-holder.

The plate trimming de'vz'ces.On the forward end of frame 1 is mounted a Slide 6 which is adapted to be moved transversely of frame 1, between suitable guides 1 attached to the frame. Said slide has an upstanding lug 6 which is perforated for the passage of a tool clamp 6 which holds a cutter and trimming tool 6. I This tool, see Figs. 2, 9 and 1 has a straight cutting chisel point 6 and a beveled cutting and trimming edge 6, in rear of the point. The plate 6 is also provided onits under side with a perforated internally threaded lug 6 which depends through a slot 1 in the top of the frame 1 and "is engaged by a threaded shaft 6, hearings in the frame 1 and is provided on its outer end with a handle 6" By turning this shaft the slide 6 can be moved transversely of frame, and the springs shown in which is supported in suitable cutter moved to and from the plate-holder. The tool 6 is so located relative to the plateholder that when a plate isproperly positioned in the plate-holder and the cutter is advanced, it will first cut the head off of the plate by means of point 6 the plate being rapidly rotated by and with the plateholder; and then by further advancing the tool 6 the beveled cutting edge (3 of the cutter will engage the edge of the plate and trim it down and bevel such edge as is desired to prepare it for engagement with the cylinder-plate clamps. The tool 6 can then be retractedfout of the way by properly manipulating th'eshaft 6 7 The boring dem'ces.-Arranged axially of the plate-holder 3 and pro ecting therethrough is a bar 7, which also extends through the bracket 1 and is thereby supported upon the frame 1, the bar 7 being located at one side of the bearing of the shaft 4. In the under side of bar 7 is a longitudinal groove in which is mounted a slid-able rack 8 which also passes through a slot in the bracket 1. The forward end of rack 8 is fastened to a tool-carrier 8 slidably mounted on the bar 7, and carrying adjustable trimming tools or cutters 8 which are secured thereto by bolts 8. The carrier 8 can be moved longitudinally on bar 7 by shifting the rack 8. To the rear of rack 8 is connected a strap or rope 8 which runs over a pulley 7 hung on the rear end of bar 7and has a weight 8 attached to its free end, said weight being sufiiciently heavy to normally draw the tool carrier 8 back against the bracket 1, thereby withdrav-ring trimmers 8 from operative position within the plate-holder 3.

The tool carrier 8 may be moved inward, when desired by the operator, b means of a pinion 8 meshing with rack )ar 8 and mounted on a transverse shaft 8 having hearings in brackets 1 attached to frame 1; said shaft extending to the shaft 4 and having a worm-gear 8 meshing with a worm 4 on shaft 4. The pinion 8' is loose on the shaft 8, but may be locked thereto, when desired, means of a suitable clutch. As

l igs. 5 and 6 gear 8 has a clutchface 9 on one face adapted to be engaged \by a sliding'clutch-membcr 9 splincd on shaft 8 and havin a groove engaged by a roller 9'" on a hand lever 9, which is pivoted at 9" on bracket '9 attached to bar 7. By properly shifting this lever 9, the clutch 9 can'be thrown into or out of engagement with the clutch 9, and consequently the gear 8' can be caused to rotate with the shaft 8 at will. Preferabl after the plate is trimmed as above escribed and the tool 6 retracted out of the way, the operator throws clutch 9' into engagement with the gear 8, and the latter causes rack 8" to move thetool carrier 8 forward on bar 7- until it lit til

ll. tli. but ,Wd? h il traverses the entire length ofthe late in holder 3. The-cutters-8 on the too carrier having been previouslyyproperly adjusted, operate toborefout or'trim the interior of the plate P, to-the exact diameter desired; and as the plate is. firmly expanded against theinterior of the'plate-holder thei late is truly and accuratelyboredso as-tot truly and snugly upon the--plate-cylinder of the press. When the carrier8 hastraversed through the plate the clutch 9"is thrown out of engagement with the'gear'8', and

thereupon the weight 8 draws the tool car.- rierbach to the initial position out of the way. Then the shaft 5 can be stopped-and the finished plate removed.

An indicator or'pointer 12- may be attached to one'ot-the bearings-Qadjacentthe cutting, devices to indicateto the operator the particular length of; the finished plate and assist him in properlyxpositioning the plate-in the plate holder.

vHaving described my invention ;what ll claim as new and desire to secure by Letters Patent thereon is:

1. In combination, a rotary plateholder, means for rotating-saidholder, means'tor securing a tubular stereote plate in said holder, a tool'support e it supported in the holder; a boring tool on saidfsupport, means tor reciprocating saidtool aniall of the holder to true the nterior otthe p ate,

a cuttin tool,'and meansntor reci rocating the cutting tool transversely of t e holder to trim the end (of the plate,

2. ln combination, a cylinder adapted to contain a slotted tubular-plate, a longitudinal rib in saidcylinder adapted to engage the slot in the plate, and ad]ustable devices in the cylinder at one side of the rib adapted to engage one side of the slot inthe plate and expand, and thereby secure the tubularplate in said cylinder, means for rotating the cylinder, and means torbonng the expded plate 3. The combination of a rotatable cylin- 4 der adapted 'to contain 'a slotted tubular plate, means for expanding. the late in the cylinder,f astationary bar eaten mg axially within saidcylinder, a non-rotatable tool carrier slidablymounted on said bar, a rack connected with the carrier, a pinion engaging said ch, a driven shatt carrying and pinion, and a clutch for locking said plnlon to the shaft, and means for rotating said cylinder to cause the tool to operate on the late. p t. The combination ot a rotatable cylinder adapted to contain a slotted tubular plate, means for expanding the plate in the cylinder, a fixed bar extending ax ally oi the plate in said cylinden-a tool carrierslidably mounted on said bar, a ra'clrengaging said carrier, a pinion engaging said rack, a driven shaft carrying said pinion, a clutch for locking said pinion to the shaft, means for throwing the clutch into and out of engagement, and means for retracting the rack bar when the clutch is disengaged; with means for rotating said cylinder to cause the tool to operate on the plate.

5. The combination of a rotatable cylinder adapted to contain a slotted tubular plate, a bar extending longitudinally and attached to said cylinder and adapted to engage one edge of the slot in the plate, devices on the cylinder engaging the opposite edge of the slot to expand it in the cylinder, a tool support extending longitudinally of the cylinder, a tool carrier slidably mounted on said support, means for reciprocating said carrier, and means for rotating the cylinder to cause the tool to o crate on the plate.

6. A machine for fihishing slotted tubular stereotype plates comprising a pair of bearings, a rotatablecylinderjournaled therein, means forlsecurlng a tubular-plate in said cylinder, gearing for rotating said cylinder,

a bar extending axially through said cylinder, a tool carrying slide on said bar, and means for reciprocating said slide en'said bar, substantially as described.

7. A machine for finishing stereotype plates comprising a rotatable cylinder adapted to contain a slotted tubular plate, means for securing and expanding such plate in said holder, and gearing for rotatlng said cylinder, and means for boring the plate; with a transversely movable slide adjacent one end of said cylinder, and a cutting and trimming tool carried thereby adapted to operate on the plate while the cylinder rotates.

8. The combination of a rotary cylinder adapted to contain a slotted tubular-plate having I a narrow longitudinal slot, and means engaging the slot in the plate for expanding and cramping such plate in said cylinderywith means or rotating said 0 linder, and means for boring the expandedplate.

9. In a machine for finishing tubular stereotype plates, a tubular holder, means for expanding a slotted tubular-plate placed Within said holder so as to clamp the plate therein, and means for rotating the holder.

10, In a machine for finishing tubular 'tating said holder and plate; with a nonrotatable tool adapted to bore the interior of the plate, and means for reciprocating said tool through the plate as the latter is rotated in the holder.

12. In combination, a rotary cylindric holder adapted to contain a cylindric tubulair-plate, means for rotating said holder, means for expanding a slotted tubular 1o stereotype plate in said holder so as to hold its type face in close contact with the inner wall of the holder; a plate boring tool, and means for reciprocating said tool axially of the holder.

13. In combination, a rotary cylinder adapted to contain a tubular plate having a narrow longitudinal slot, and means engaging the slot in the plate for expanding such plate and cramping it in said cylinder; with a cutting tool adjacent'the edgeof the cylinder adapted to trim the edge of the plate While held in the cylinder.

l t. The combination of a rotary cylinder adapted to-contain a slottedtubular-pla-te having a narrow longitudinal slot, and

means engaging the slot in the plate for expanding and cramping such plate in said cylinder; with means for rotating said cylinder, and means for boring the expanded plate; with a cutting tool adjacent the edge or" the cylinder adapted to triinthe edge of the plate while held in the cylinder.

15. In a machi ne for finishing tubular stereotype plates, a rotary cylindric holder,

means for securing a slotted cylindric tubular-plate therein by expanding said plate in the holder, a non-rotatable tool for operating on the tubular-plate within the holder, and means for moving said tool longitudi- 4 nally of the holder during the rotation of the tubular-plate by the holder; with a cutting tool adjacent the edge of the cylinder adapted to trim the edge of the plate While held in the cylinder.-

16. In combination, a rotary cylinder adapted to contain a tubular-plate having a longitudinal slot, bell-crank levers pivoted on said cylinder, one arm of each lever projecting into the cylinder through openings in the side thereof and adapted to engage one edge of the slot in the plate to expand the same in the cylinder, and means engaging the outer arms of the levers for adjusting them. I

17. In combination, a rotary cylinder adapted to contain a tubular plate having a narrow longitudinal slot, and means adapted to engage the slot in the plate from the exterior side thereof for expanding such plate circumferentially and thereby cramping it in said cylinder.

18. In combination, a cylindric plate holder adapted to contain a cylindric tubular-plate, means for rotating said. holder; 21 boring tool, a stationary support therefor mas er extending into said holder; means for reciprocating said tool on said support through adapted to contain a single-page tubularplate, means for expanding and securing said plate within said holder to rotate therewith; means for rotating the holder and plate; a movable shaver adapted to traverse the plate-holder and plate to shave the latter; and means for reciprocating the shaver.

21. In a machine for finishing tubular stereotype plates, :1 cylindric plate-holder adapted to contain a slotted tubular plate, an abutment in said holder adapted to engage one edge of a slot in the plate, means in said holder for engaging the opposite edge of the plate, and means for causing said devices and abutment to separate so as to forcibly expand the plate in the holder.

22. In a machine for finishing tubular stereotype plates, 9. cylindric plate holder adapted to contain a slotted tubular plate, an abutment in said holder ada ted to engage one edge of a slot in the p ate, means in said holder for engaging the opposite edge of the plate, and means for causing said devices and abutment to separate so as to forcibly expand the plate in the holder; and a shaver adapted to traverse the holder and plate.

23. In a machine for finishing tubular stereotype plates, a cylindric late-holder adapted to contain a slotted tu ular plate,

an abutment in said holder adapted to engage one edge of the slot in such plate, means in said holder for engaging the opposite edge of the plate, and means for causing said devices and abutment to so arate so as to forcibly ex and the plate in the holder; withmeans or rotating the holder and plate and a shaver adapted to traverse the holder.

24. In a machine for finishing tubular stereotype plates, a cylindric tubular plate holder, means for securing a tubular pageplate therein, a tool holder mounted axially of said plate holder, a rack bar for reciprocating said tool holder, a pinion for driving the rack-bar, a countershaft on which said pinion is mounted, gearing for driving the countershaft, and a clutch for locking the rack-bar pinion to said countershaft.

25. in a machine for finishing tubular stereotype plates, a cylindric tubular plate holder, means for securing a tubular plate therein, a bar extending axially through the plate holder, a shaver slidably mounted on said bar, a rack-bar for operating said shaver; mechanism for driving the shaver, a pinion for driving the rack-bar, a countershaft on which said pinion is mounted, gearing for driving the countershaft from the plate holder driving mechanism, and a. clutch for locking the rack-bar pinion to said countershatt.

26. The combination of a rotary cylinder adapted to contain a slotted single-page tubular-plate, means for rotating said cylinder, and means engaging the slot in said plate for expanding and cramping the same in said cylinder, and means for shaving the plate While expanded.

27. lln a machine for finishing stereotype plates, a rotary plate holder adapted to contain a single-page tubular plate, means for expanding such a plate within said holder to secure it therein, a non-rotatable shaver for operating on the interior of the plate While it is carried by the holder, and means for moving said shaver longitudinally of the plate during the rotation of the plate by, the holder.

p 28. The combination of a rotatable cylinder adapted to contain a slotted single-plate tubular plate, an abutment in said cylinder adapted to engage one edge of the slot in said plate, devices on the cylinder engaging the opposite edge of the slot in the plate to expand it in the cylinder, a bar extending axially of the cylinder, a shaver slidably mounted on said bar, means for reciprocating said shaver, and means for rotating the cylinder to cause the shaver tooperate on the plate.

29. In combination, a cylinder adapted to contain a slotted single-page tubular-plate, a longitudinal abutment in said cylinder adapted to engage one edge of the slot in the plate, and adjustable devices in the cylinder at one side of the abutment adapted to engage the other edge of the slot in the plate and expand the tubular-plate tightly in said cylinder; with means for rotating the cylinder and means for shaving the expanded plate.

In testimony that l[ claim the foregoing a my own, ll allix my signature in presence of two witnesses.

HENRY F. BECHMAN.

Witnesses:

FRANK W. DUNNING, l'rivmo K. Srone.

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