US516913A

US516913A - Machine

Info

Publication number: US516913A
Authority: US
Publication date: 1894-03-20
Anticipated expiration: 1911-03-20

Description

"ING Model.) 4 sheetssheet 1. C. BUTTERFIELD. 'INAVBLING CYLINDER PRINTING MACHINE. No. 516,913.

Patented Mar. 20, 1894.

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A (No Model.) 4 Sheets-Shet 2.

o. BUTTERPIBLD. TRAYELING CYLINDER PRINTING MACHINE.

N0. 516,913.. VPatentedMar.' 20, 1894.

4 Sheets-Sheet 3.

(N0 Model.)

C. BUTTERPIELD. TRAVELING CYLINDER PMNTING MACHINE. No. 516;913.

Patented Mar. 20, 1894.

(No Model.) 4 SheetS--Sheet 4.

C. BUTTERFIELD.

TRAVBLING CYLINDER PRINTING MACHINE.

No. 516,9i3. t Patented Mar. 20, 1894.

UNITED STATES PATENT OFFICE.

CHARLES BUTTERFIELD, OF NOTTINGHAM, ENGLAND.

TRAVELING-CYLINDER PRINTING-MACHINE.

SPECIFICATION formingpart of Letters Patent No. 516,913, dated March 20, 1894. Application ined Math '7, 189s. serial No. 464,930. (No model.)

To @ZZ whom it may concern.-

Be it known that I, CHARLES BUTTEEEIELD, a subject of the Queen of Great Britain, residing at 181 Pym Street, in the town and county of Nottingham, England, have invented certain new and useful Improvements in Traveling-Cylinder Printing-Machines, of which the following is a specification, reference being made to the accompanying drawings, and to the letters marked thereon.

The invention has for its object improvements in that description of cylinder printing machines in which the type bed or lithographic stone is held stationary while the cylinder having the paper thereon and the damping and inking rollers are caused to traverse to and fro over the type bed or lithographie stone, the cylinder being rotated when traveling in the direction for printing and being held stationary when travelingin the contrary direction after the printing has been effected.

My present invention relates to various improvements wllereby such description of machines is rendered much firmer and the various operations more certain and effective than heretofore.

My invention is illustrated in the accompanying drawings, in whieh- Figure 1 is a side elevation of a letterpress printing machine constructed according to my invention. Figs. la and 1b are detail side views. Fig. 2 is a longitudinal section of the machine. Fig. 3 is a sectional elevation and Fig. 4 isa plan'of parts for throwing the impression77 on and off. Fig. 5 is a sectional elevation and Fig. 6 is a plan of parts at the lower edge of the feed table' for presenting the lower edge of the sheet in a proper direction to be taken by the cylinder grippers. Fig. 7 is a front elevation and Fig. 8 is a sectional elevation of parts showing the retainer, and parts for actuating the same, for seizing the edge of the printed sheet as presented to it by the cylinder and for delivering it to the receiving table. Fig. 8a is a detail plan view and Fig. Sl is a detail side View of parts of thesheet-retainer. Fig. 9 is a cross section of one of the segments, its rack, carrying rail and guide. Fig. 10 is a sectional elevation of parts for holding up or down the lever controlling the apparatus for throwing the impression on and off. Fig. 11 is an end elevation of the impression cylinder with its loose toothed wheel broken away in order to show the catch arrangement, and Fig. l2 is a longitudinal section of the same.

Fig. 13 is a longitudinal section and Fig. 14 is a cross section showing the f parts of the end standards ot ot carry the bed of the machine, which latter consists of a rail 0.3 011 each side of the length of the machine, cross bars a4 a4, ink slab a5 and bearings a6 for the shaft of the large driving toothed wheel, cast together. The axis b' of the impression cylinder b is carried at its ends in bearings c', forming the axes of motion of segments e, the rims of which are provided with plain surfaces c2 to run on the plain or flat portions a* of the rails a', and with teeth e3 togear into the toothed racks a2. These segments c are connected together firmly by a cross rail c4 under the bed of the machine, and such cross rail c4 is connected by a link CZ to acrank pin e on a toothed wheel e driven by a pinionf on the driving axis f. The necks of the axis b of the impression cylinder b pass through the bearings orhollow axes e of the segments c, and such bearings c also pass through bearings g attached to aframe consisting of side rails g and a cross bar g2 fixed rigidly together and carrying the inking rollers h and stops it" for holding the cyl" inder b fast in its return traverse over the type hed or lithographie stone, having springs t* located on the back of the side rails g, and partly recessed therein and connected at one end to said side rails and at the other end tothe IOO stops t', fi', and such frame also carries, when used for lithographic purposes, the damping rollers j represented at Fig. l5, in which4 case the bed a3 d* of the machine carries a damper 7c, in contact with which the damping rollers j run during part of their to and fro motion. The inking rollers, when not supported by the ink slab, run over wood rails a5* resting on the side rails a3. The side rails g of said frame run mainly clear of the side rails as of the machine bed, but the rear ends thereof rest, by the rollers g3, upon the machine side rails a3, and such rear ends of the side rails g are held down to the machine side rails 01.3 by the brackets or clamps g4. The impression cylinder b is held down to the side rails as by adjustable clam ps iixed to the cross bar g2, and each consisting, according to the arrangement represented at Fig. l, of a friction roller g5 carried by a bracket c/ pivoted at 9*, which bracket is adjustable in height by means of a screw Q7 passing through the cross barg.

In the modification shown at Figs. 13 and 14, the adjustable brackets or fram es g6 each carry three friction rollers g5, of which latter more or less may be used, and said brackets or frames, instead of being acted upon directly by the screws Q7 have springs g8 interposed between said screws and brackets or frames, while the latter are limited in their upward motion by screws g fixed to said brackets and passing loosely through holes in the cross bar g2,nuts g10 being screwed on to the lower ends of such screws. By the above arrangement the principal weight of the cylinder and its frame is carried by the segments c resting on the flat parts a* of the lower rails a.

The rails d are provided with flanges a7 to retain the segments c in correct position and consequently prevent endwise motion to the impression cylinder b and other parts moving therewith. As an alternative the segments c may be provided with flanges, or the frames g may be provided with guides working against the side rails as. By the above described arrangement of driving mechanism a smoother and more balanced motion is given tothe cylinder b and other parts than heretofore.

The segments c are connected by links l to a frame fm carrying the distributing rollers m', receiving table or board n, and arm or pin m2 for releasing the sheet retainer at the required time to cause the printed sheet to fall on to the said'table or board n.

The impression cylinder b is provided with a gripper bar b2, on one end of which is a lever b3, which is operated by a trip lever b4 at each end of the traverse of the impression cylinder b in the following manner. The frame uprights d, carrying the sheet retainer, also carry a lever cam o, which, by the pressure against the lower side thereof of the irnpression cylinder bearing or other part moving with it, is caused, by its upper part, to act upon the truck b5, and thereby to give a quick motion to the trip lever b4, which latter, by acting upon the lever b3 gives apartial rotary motion to the impression cylinder gripper shaftb2,andtl1ereby releases the paper on the impression cylinder b at the precise moment when the movable jaw p* of the sheet retainer is caused to close against the xed bar or jaw p to grip the paper. This closing action of the jaw p* is eected by the top side of the truck b5 coming against the under side of the lever catch p2 hereinafter described.

The sheet retainer consists of the fixed bar p andthe spring gripper bar p, which are carried by brackets or extensions of uprights ct of the machine frame, or such parts may be carried by brackets fixed to the machine bed side bars as; the spring gripper bar p is provided with a spring lfm* coiled around the bar, one end of the spring being fastened to a screw on an arm pii, and at the other end to the bar p. The arm pif* is located on the spring gripper bar and is fitted with a catch p2 pivoted thereto, and such catch acts in connection with a fixed stop p3, so that when required the grippers p* of the spring gripper harp can be held away from the fixed jaw or bar p of the sheet retainer and, at the moment when the paper is released from the impression cylinder, the truck b5 of the aforesaid trip lever 54 acts upon the pivoted catch p2 as above described to release it from the fixed stop p3 and thereby permit the grippers p* of the spring gripper bar p to close against the fixed jaw or carp of the sheet retainer. In the forward motion of the frame m carrying the distributing rollers m', dac., a fixed arm or pin m2 on such frame acts against one end of a lever q, the other end of which acts to move the grippers p* of the spring gripper bar p away from the fixed bar or jaw p to release the printed sheet and at the same time places the pivoted catch p2 against the stop p3 to keep the sheet retainer` open until, on the return of the impression cylinder b, it is again released to cause the sheet retainer to grip a fresh printed sheet. The lever q works on a fixed axle g in the standard (the same axle carries the arm 0 for opening the grippers on the impression cyl inder). The pin m2 by moving with the rollers m and receivingtable or board n comes into contact with the lowerend of the lever q the upper end of which moves back the arm p* thereby turning the shaft p, and removing the grippers p* from the fixed bar p to release the sheet, the lower end of the arm pik* carries the catch p? which drops against the fixed stop p3 fastened to the standard a and holds the grippers piopen until the next sheet is to be gripped, then by raising thc catch p2 the spring 13M* causes the grippers p* to close on the sheet.

The front of the machine has brackets r standing up therefrom, and to these brackets the feed table s is pivoted. The lower edge of the feed table s is a short distance away from a fixed stop or bar s', against which the blank sheet of paperis fed. y The lower edge of the feed table s has a dipping motion imparted thereto by its own weight acting in combination with the following parts.

The feed table s has connected thereto an arm s2, which rest against one end of a lever s3, whose other end rests, by a truck or roller s4, against a cam S5; thus the cam 85 causes the feed table sto be raised to its upper position when a sheet of paper is to be fed on tothe same, so that the lower edge of the sheet, when fedon to the table, will slide down and rest against the fixed bar or stop s; then, when it is desired to lower the sheet to the position for it to be taken by the impression cylinder grippers, the cam S5 allows the feed table s to dip by its own weight. The lower edge of the feed table s has a bar s6 carried at the rear ends ot' levers S7 pivoted to brackets fixed to said table and at a short distance beyond the lower edge of the latter; this bar s is acted upon by a spring S8 to cause it to dip in relation to the lower edge of the feed table when required, so that fingers S9 thereon shall grip the sheet of paper on such feed table, and other lingers S10 shall cause the lower edge of the sheet to be depressed into position to be securely gripped by the impression cylindergrippers. The feed tableY s, Vin rising, brings the front end of one of the pivoted arms S7 carrying the spring finger bar s6 against a fixed stop s and thereby raises such pivoted finger bar s6 into position to en able a fresh sheet of paper to be fed on to the feed table s against the fixed stop s. This arrangement of parts for presenting the lower edge of the blank sheet to the impression cylinder grippers is also applicable to other cylinder printing machines.

A lever frametis mounted on axes t at the lower part of the front of the machine framing and acam152fixed to one arm of the lever frame z5 is acted upon by a roller 153 carried by the toothed wheel e, so as to move the said lever frame t in one direction, the weight of the frame 15, assisted by a spring z5* acting to move it in the opposite direction until such frame comes to rest against a stop 156. This lever frame t carries, as will be .hereinafter described, a finger 754, which, by acting on the under side of the plain end of the trip lever b4, releases the impression cylinder grippers b2 at the required time to cause them to grip the lower edge of the sheet of paper as vthe latter is presented to the impression cylinder, and the lever frame 15 also carries, as will be hereinafter described, a lever pusher 255, which, at the moment after the impression cylinder grippers ha ve seized the sheet of paper, pushes the lever arm i2 of the stop 'and releases the impression cylinder, thereby enabling itl to rotate during its traverse motion forprinting. One of the brackets r has pivoted thereto at tf, a lever u, which, by means of a weighted tumbler lever u and eccentric u2, is capable of being raised and lowered at its free end, thereby enabling the impression to be thrown off or onV as may be requiredin the following manner. A spring catch a3 acts in one or other of the notches a4 of the lever alto 7o hold the latter in whichever position it is left by the tumbler lever u. The lever u has fixed thereto a cam a5, the frontend of which is formed to act against a truck o carried by one end of a lever c, whose other end is Ypivoted at o2 on a projection from the lever frame t, and such lever o is connected by link o3 to a sliding bar o4, which carries at one end the finger# and lever pusher t5. The cam 11,5 will, when in position to do so, act upon the truck o to push the slidingbar o4 in the direction shown by the arrow and, when in its extreme position in such direction, the finger t4 and 'lever pusher t5 are imposition to act respectively upon the trip lever b4 and the lever 722 of the stop z", but when the lever u is lowered so that lthe cam a5 is below the planeofthe truck o', such camwill miss the said truck in the forward motion of the lever frame t, `and the spring o5 will, when the lever frame z5 is nearly in its most backward position, pull the bar @4in the contrary direction to that of the arrow into position for the finger z54 and lever pusher 155 to miss the trip lever b4 and lever i2 of the top i'. As the lever frame t approaches nearly to its most backward position, a projectionvo6 acts against the spring catch us to release it from the teeth a4, at which time the lever a can be either raised or lowered as required. When the lever u is in its raised position, the various parts controlling the throwing off or on of the impression, are acted upon for throwing on the impression,but whenthe lever u is in its lowermost position, .the various parts above referred to are acted upon for throwing on the impression. Theleveru also, when in its lowered position, brings aA stop 11.6 thereon into position for an arm -312 on the under side of the table s to rest against the same, by which means the dipping of said i 1o table s is prevented, thereby preventing-the delivery of a' blank sheet of paper to the impression cylinder grippers at the time when the impression is thrown off.

The impression cylinder h has lixed on one end thereof, a toothed wheel h6, which has a few teeth cut away or absent, on one side thereof; on the other end of the axis of said impression cylinder is mounted a toothed ,i

wheel 67, both of which wheels gear into racks a8 xed on the side bars a3, and such wheel 57 is .provided with the following arrangement of parts for enabling it to give motion to the impression cylinderand to run free thereof at the required times. v

0n the end of the impression cylinder bis fixed a projection b8 and pivoted to the wheel 67 is an arm b9, spring bw to place itin the position shown by Fig. ll, in which position said arm` b9. Will, by

pushing against the projection bs, give rotary motion to the impression cylinder b, but when the impression Vcylinder has arrived at` the end of its forward or printing motion and which is acted upon by a.

the return motion commences, the wheel c7, l

still being in gear with one of the racks a8, will revolve in the contrary direction, but in doing so the arm b9 will recede from the projection bs till it has completed such revolution, when the arm b9 will again assume the position shown at Fig. ll in readiness to give rotary motion to the impression cylinder. If however the leveru has been lowered to throw olf the impression, the under side of the cam 11.5 will, by pressing on the truck b, disengage the arm b9 from the projection bs in order to prevent rotary motion being given to the impression cylinder thereby. The wheel b, on themotion of theimpression cylinder toward the feed table s, and also when the impression is thrown oft, will, by reason of the lat portion thereof being toward the rack as, pass over such rack without gearing therewith.

'w is a brake, which may be of any suitable character, and which is used to overcome the momentum of the impression cylinder b and thereby prevent the stop or catch b* thereon from over-running the spring stops z' The impression cylinder b, when permitted by the removal of the stop t" from the catch or stop if, is capable of revolving and, when about to complete its revolution to the position shown by Figs. l and 13, the catch or stop b* pushes down the stop 'L' until it just clears the latter, when, by again coming into contact with the stop fi', the impression cylinder is again locked to prevent any rotary motion thereof on its return toward the feed table.

0^ is a pusher home finger or stop, which is fixed to one of the brackets fr or to other part of the machine frame, and which, in the event of the impression cylinder having slightly over-run its correct position, will, by acting against a notch 5** in, or a projection on, the impression cylinder b, insure the adjustment of the impression cylinder to its correct position for the gripper to receive a sheet of paper from the feeding table s.

y is an ink duct of any ordinary character.

z is a fixed but adjustable side lay, I hangs below the feed table Vwhen the latter is in its raised position and it is used as a guide against which the paper is fed endwise so that the sheet will register.

In the modification shown at Fig. 15, which is arranged for lithographie work, the impression cylinder b and inking rollers h are similar to those of the letter-press machine hereinbefore described, but in addition there are damping rollers j, which travel over a damper lo and over the lithographie stone 0c to the position shown in dotted lines. The bed is also modified as shown for the increased thickness of the stone, and the ink slab a5 is proportionately extended according to the requirements; the inking rollers are of the character usually employed with lithographie printing machines.

Having fully described my invention, what I desire to claim and secure by Letters Patent is j l. The pivoted feed-table constructed with levers, extending a short distance beyond its lower edge, the bar, carried at the rear ends of the levers, having gripping fingers, and depressing iingers, the spring, acting upon the bar, and a fixed stop with which the bar comes in contact; substantially as described.

2. The combination of the fixed racks, the traveling and rotating impression cylinder, a partly toothed wheel xed to one end of the impression cylinder, a projection fixed tothe other end of the impression cylinder, a spring arm on the impression cylinder pushing on the projection, an axis on which the impression cylinder rotates, a toothed wheel on the axis and mechanism for carrying and traversing the impression cylinder; substantially as described.

3. The combination of the fixed racks, the traveling and rotating impression cylinder, a partly toothed wheel fixed to one end of the impression cylinder, a projection fixed to the other end of the impression cylinder, a spring arm on the impression cylinder, pushing on the projection, an axis on which the impression cylinder rotates, a toothed wheel on the axis, mechanism for carrying and traversing the impression cylinder, a truck on the spring arm, and mechanism for engaging the truck to disengage the spring armfrom the projection; substantially as described.

4. The combination of the fixed racks, the traveling and rotating impression cylinder, a toothed wheel fixed to one end ot' the impres sion cylinder, a gripper-bar, on the impression cylinder, having a lever at one end, a trip-lever on the impression cylinder, for operating the gripperbar-lever, an axis on which the impression cylinder rotates, a toothed wheel on the axis, a leverframe having a finger for engaging the trip-lever, mechanism for operating the lever-frame, and mechanism for carrying and traversing the impression-cylinder; substantially as described. t

5. The combination of the fixed racks, the traveling and rotating impression cylinder, a partly toothed wheel fixed to one end of the impression cylinder, a catch on the impression cylinder, an axis on which the impression cylinder rotates, a toothed wheel on the axis, alever-frame having a pusher, mechanism for operating the lever-frame, and mechanism, for carrying and traversing the impression cylinder, having side rails carrying spring stops with which the catch engages, one of the stops being provided with a lever-arm with which the pusher engages; substantiallyl as described.

6. The combination of the fixed racks, the traveling and rotating impression eylinder,a toothed wheel fixed to one end of the impression cylinder, a gripper-bar on the impression cylinder, having a lever at one end, a trip-lever on the impression cylinder for op- IOO IIO

IZO

erating the gripper-bar lever, having a truck,

an axisv onwhich the impression cylinder rotates, a toothed wheel on the axis, the levercam acting upon thestruck ofy the trip-lever,

and mechanism for carrying and traversing 1o brackets to which the fixed-bar and the gripper bar are secured, a springby which the gripper-bar is rotated, the jaw pi, secured to the gripper-bar, the arm p* secured to the gripper-bar, a catch p2 pivoted to the arm of the gripper-bar for holding the jaw open, a Xed v stop p3 with which the catch is engaged and on which it is supported,.and means for' resetting the catch and the jaw; substantially as described.

zo '8. The sheet-retainer constructed Witha fixed bar, a spring-gripper-bar having an arm, a catch pivoted to the arm of the gripper-bar and a fixed stop for the catch, and mechanism for re setting the sheet-retainer consisting of alever for engaging the arm of the gripper-bar, and a sliding frame having an arm acting on the lever; substantially as described.

9. The combination of the'impression cylinder, the segments having bearings in Whlch the ends of the impression cylinder are carried, the cross-bar by which the segments are connected, power mechanism, a link connecting the powerl mechanism with the cross-bar, a sliding frame for carrying thedistributing rollers, and links connecting the sliding frame with the segments above the cross-bar for imparting a slower motion to the sliding frame than tothe impression cylinder; substantially as described.

10. The combination of the leverframe having a spring sliding bar providedwith a finger and pusher, a projection on the leverframe, a lever pivoted to the projection, having a truck, a link connecting the lever with the sliding bar, and a lever pivoted to the frame of the machine; having a cam adapted to engage the truck; substantially as described.

cHARLEs BUTTEREIELD.

Witnesses:

J. ALEXANDER SIMPSON,

Solicitor, Nottingham. FRANK LEMAN, c

Accountants Ulerk, Nottingham.