USRE4646E - Improvement in printing-presses - Google Patents

Description

. 9 sheets-sheet?.

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No. 4,646. Mgg Reissued Nov. 28,1871.

UNITED STATES PATENT GEEIGE,

MEREITT GALLY, 0E ROCHESTER, NEw Yer-@Kg IIVIPROVEIVIEN-Tl IN PRINTING-PRESSES.

Specication forming part of Letters Patent No. 97,185, dated November 23, 1869; reissue No. 4,646, dated Novem- `ber 2S, 1871.

To all @hom it may concern.-

Beit known that I, MERRITT GALLY, of Rochester, in the county of Monroe and State of New York, have invented a new and useful Improvenient in Printing-Presses; and l do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawing making a part of this specification,-

in which- Figure lis a side elevation, showing the construction and relative arrangement of the ways and pulleys or guides which give direction to the roller-carriage. Fig. 2 is a longitudinal vertical section, showing the construction of the typebed, 'arrangement of distributing-cylinders, and combination of levers used for giving motion to the hiking-rollers. Fig. 3 is a view in perspective of the method of detachment of the same. Fig. 4 is a detached view of a portion of the drawbar, together with the cap-cam, reversed. Fig. ,5 is a horizontal section of the entire press, showing all theparts. Fig. Gis a side elevation, showing the method of working the ink-fountain and vibrating feed-roller by one and the same movement. Fig. 7 is a perspective view of the setlatch for regulating' theimpression-adjustcr. Fig. 8 is a longitudinal section of the same.A Fig. 9 is a perspective of ink-fountain, tank, or shell, coated or lined with porcelain. Figs. 10, 11, 12, and 13 are end elevations of thev impression-adjuster and throw-cti". Fig. 14 is aA perspective view ofthe impression-adjuster, showing' the single wed ge or sleeve with projection 5 also when two wedges or sleeves are connected by a bar.

Fig. 15 is a longitudinah and transverse view of the partitions of the chambered shell forming the type-bed, also a perspective ofthe same with a part of the face of the bed cutaway, showing the internal construction. Fig. 16 is a view of the gripcr or frisket-fin ger, perforated for the use of guides; and Fig. 17, a View of the elastic cut-ott' for ink-fountains. Fig. 1S is a cross-section of' Fig. 17 on an enlarged'scale.

This invention consists: First, in an improved constructionof the ways which guide the movement of the inking-rollers, said ways hearing such relation to the ink-distributing cylinders as to insure an easy movement to said rollers, and, at the same time, raise them free from the distrbuting-cylinders on coming in contact with or leaving the same, and thus avoid the tearing of rollers, so frequent in presses where the former are. drawn over the distributing-cylinders; second, in the construction and use of cams which govern the movements of the draw-bars, in connection with the driving-cranks; third, in a mechanism for imparting to the inkin g-rollers a positive motion in both directions over the form, in combination with a mechanism for stopping the inking-"rollers, at the will of the operator, wit-hout stopping the press; fourth, in a mechanism for stopping the inking-rollers, combined with a mechanism for preventing the inking-roll'ers from being set in motion at an improper time; fifth, in a curved wedge or sleeve, placed between the movable bearings which sustain the force of the impression, said wedge or sleeve being so` arranged that it may be set in different positions to produce varying degrees of impression, or, in other words, to operate as an impression-adjuster; sixth, in a set-latch for adjusting the degree of the impression, in connection withthe curved wedges or sleeves above referred to; seventh, in springs, India-rubber packing, or Iother elastic material, to take ofi the positive pressure of the ink-fountain set-screws, so as to prevent the binding of the gauge or cut-oft' upon the surface of the roller which feeds the ink from the trough o tank;A eighth, in placing on the lever-projection of the platen-rocker a lug, which, in connection with a iiange or stop on the frame-work, holds the platen in position during the impression; ninth, in giving the type-bed a backward inclination, when used with a rocking, rolling, vibra-ting, or oscillating platen, for the purpose of fastening the form to the face of the bed by its own gravity, preventing loose type from working out and the form bagging; tenth, in a hollowr bed, constructed with chambers formed by internal partitions; eleventh, in afrisket-inger, provided with a hole or holes made large enough for small feed-guides to be placed under them on the tympan-sheet, that part of the finger at the side of the holenearest the printed mattei' being made very narrow, so that the guide maybe used on a very narrow margin, at the same time allowing the nger to gripe the entire edge of the sheet. In the drawing, the way a1 a2- a a4, which governs the direction of the rollers 1 2 3, has a'straight part, in line with the face of the types, and a series of curves at that part nearest the ink-distributing cylinder or cylinders. This series of curves maybe varied for diiierent numbers 'of inkinglrollers. In Fig. l'three inking-rollers are represented, l 2 3, as resting upon the distribnting-cylinders 4 5. The direction of movement ofthe wheels or guides 7 8 determines the direction of the hiking-rollers as they leave ,and approach the distributing-cylinders. simply comes in contact With cylinder 5 and leaves it directly, passing' toward cylinder 4. At the same time the rollers 2 and are lifted oli' from cylinder et without being drawn over its surface. This is done by the movement of the wheels or guides 8 into the curve a2.' As roller l nears cylinder' 4: it also is raised clear ot' said cylinder by the passage 'of wheels or guides 7 into curve a?. The wheels or guides 7 and 8 then both passthron gh curve a3 into the straight part a4.

It will be seen that the passage of the wheels' or guides 7 8 through the series of curves L1 a2 a3 into the straight waya4 will give an easy undulating motion to the rollers, and, at the same time, will prevent the composition of the rollers l 2 '3 from'being torn, as it is liable to be when said rollers are drawn over the surfaces of the cylinders in the usual manner. It will also be seen that this arrangement so removes the inking-rollers and distributingcylinders from the plane of the face of the types as to allow the printing of sheets larger than the face 'of the platen, or with margins extending beyond the face ofthe platen, and thus prevents the 'contact of saidl sheets with the ink upon said rollers and cylinders.

In Fig. 4 the traverse-cam C, in connection With stud or wheel G, governs the movement of draw bar D while the crank-pin e is passing through the slot d. During a part of the sweep of the crank-pin e it acts in nnisn with the stud l or wheel G, that part of the traverse through which the stud or wheel is passing being concentric with tlie crank-pin. The remainder of the traverse, being eccentric to the crank-pin, allows the said movement of the latter in the slot d, at the same time holding the draw-bar quiet, so as to impart a time of perfect rest to the plate Ao The traverse may either be acap, as represented, to be attached to the crank-pin outside ofthe draw-bar, or it may form part ofthe crank-wheel inside of the draw-bar.

The combination of levers for giving motion to the hiking-rollers is arranged as follows: H, Figs. l

Vand 2, is a shaft, to which roller-armsI, Fig. 1,

are attached, through which by any means of connection, motion is given to the inking-rollers of a press. To shaft H I attach a lever, K, which may be entirely separated from the roller-arm s or levers above mentioned, or may form part i of one oi' them. I also pivot another lever, L, at H2, Figs. 2 and 3, said lever having a positive vibratin g motion at the time for moving the inking-rollers over the types 'and back again to their position on the distributing-cylinders, such positive motion being imparted by a stud or wheel, 0, working in positive transverse cam C3 of the main spurwheel F, to `which transverse cam motlon 1s Roller l the lever K, and whenever the hook M is hooked` upon the stud E4 both levers,'L-and K, will have a positive motion, acting as a connected compound lever. As lever L 'acts through the shaft II, to which the roller-armsY or roller-levers are attached, it will be seen that the inking-rollers,

when moved in either direction over the types, Y

will have a positive motion, or that said rollers may be retained or allowed to rem ain any length of time in contact with the distributing apparatus, or in other positions not in contact with the type, by disconnecting the levers L and K whenv in the position represented in Fig. 3.

For. disconnecting said levers I use the lever N with short arm g, said lever being pivoted at j. It will be seen in Fig. 3 that by working the lever Nvthc short arm g will raise the hook M and disconnect the levers L and K. When the hook M is lifted Vfrom the stud E4 the end of short arm g of' lever N moves to a position in front of a projecting portion, t', of lever K, which portion acts as a stop and prevents anymovement of lever K during a complete vibration of lever L. A drop-hook or latch, P, drops into connection with a mortise in the end of the short arm g and prevents the lever N from being worked except when the levers L and K are in juxtaposition; The latch P is relieved from the mortise in the end of short arm g by a projection, t'f,'driving against a projection, t, of said latch. It will be seen that as soon as leverL moves away from lever K the latch P will fall into position and prevent the working' of lever N at the Wrong time, and prevent dropping of hook-connection M. Upon the pins, trunnions, or journals I, Figs. l0, 11, l2, and 13, which sustain the force or draft of the impression, I place curved wedges or sleeves i2 or the concave face of said wedges or sleeves being concentric with andin contact with said pins, trunnions, or journals I, said wedges or sleeves being placed between said pins, trunnions, or journals, and their journal-boxes or hearings. The convex or outside face of Wedge or sleeve is concentric with and in contact with a part or whole of said 'concave Vor inner face of said box or bearings M, the latter made either movable or stationary, in connection with the framework, type-bed, or platen, said frame-work,

bed, or platen being constructed in any manner, whether the face of said type-bed or the plate for receiving the sheet is plane, cylindrical, segmental, or of any other construction or whether the outside box or bearing Mf, either movable or stationary, is used either in connection with impression-bars, `connecting-rods, draw-bars, or their equivalents, or forms a part ofthe same. By turning the sleeve or wedge 'i i to dijercnt positions about the trunnion, pin, or journal I, the impression may be changed to any degree,

from zero to the strongest power of the press, according as the positions of said trunnion, pin, or journal is thus changed with respect to the box or bearing M". As the surface of pin or journal I and concave face of wedge or sleeve i2 yi are concentric with each other, and the outside face of said wedge or sleeve and the face of the box or bearing are concentric with each other, said outside faces of said wedge or sleeve being only slightly eccentric with each other, it will be seen, by referring to Figs, 11 and l2, that the tendency of the wedge or sleeve to turn under draft or pressure when set in any position is very slight.

In Fig. l1 the wedge 'i2 is represented as a complete crescent, and in Fig. 12 it is increased to a sleeve. It will be seen that when under pressure or draft one-half of said sleeve or wedge tends to move in one direction and the other half in an opposite direction, as shown by the direction of the arrows in Figs. 11 and 12. As but little difference in the positions of said wedge or sleeve is necessary for any change required in impression, the variation between the tendencies to turn in either direction will be slight and more than overcome by the friction of the surfaces under pressure or draft. No device, therefore, is necessary for holding the wedge or sleeve in` position while under pressure or draft. Some device, as projection X, however, is necessary for moving and setting said wedge or sleeve to the degree of impressionrequired, and where two or more of 'said wedges or sleeves actin unison some device is required for connecting them together. In the latter case I use the connecting-bar T, Fig. 14, or an equivalent. As the friction of the'bea'ring surfaces in Figs. l1 and 12 more than overcomes the tendency of the crescent 'i2 to turn under pressure or draft the position of the crescent cannot be changed when desired with `ease when any great amount of'pressure or draft remains continuous. In such a case I cut one limb of the crescent away more or less,

`thus destroying the equipoi'se of the two limbs,

as shown in Fig. l0; or cnt one limb of the crescent entirely away, forming the curved wedge i2 of Fig. 13. .In order that the movement of the platen or cylinder in adjusting the impression may be in a direct line at right angles with the plane of the face of the types, the bearing M8 is allowed free movement to either side of said line. The bearing made thus n'ovable prevents `variation ofthe platen or cylinder from the aforesaid direct line', thus insuring the same relative position vof the print on. every sheet, and securingregister when sheetsare printed ou both sides.

In that part ofthe press A2, Fig. 7, which con-- tains or supports the pin, trunnions, or journals with which said wedge or sleeve comes 1n contact, I place a conical-headed screw, the head of connection.

work, in one piece.

the following construction: Through the socket passes a rod wit-ira. ball or handle, V. Upon said rod is a socket-spring, a, Fig. S, and attached to the end of the rod opposite handle V is the catch-hook W. By pressing upon the ball or handle V the hook W will` be released from the catch` L2, and the wedge or sleeve 'i '172, Figs. 1 and 14, may bel turned at willto any'position within the scope of its movement.

To set the impression to any particular degree desired it will only be necessary to move the cone L2 by turning the screw to which it is att-ached out or further into the supporting part A2 and bringing the hook W and cone L2' into This will vary the position of bar T or projection X and thus vary the position of wedge or sleeve i i2, Figs. 1 and 14.

The manner of working the ink-fountain and vibrating feed-roller is represented in Fig. 6. The crooked lever V3 works the vpawl V by contactwith a cam, V5, on the crank-wheel F. The ink is fed from the fountain-roller fn? onto the vibra-ting roller V while rollers n? and V6 are in contact, such feeding' being effected by the work-v ing of the pawl V3 and ratchet al; and the sameI movement of said pawl being' continued, forces the vibrating feed-roller V6 against the distributing-cylinder 4, said pawl pressing against the vibrating yoke V2. This requires but one movement for feedingthe inkfrom the fountain onto the vibrating feed-roller, and also for working the vibrating feed-roller -to and from the distribnting-cylinder. y

The construction of the bed B is shown' in Fig. 15, showing an end view; a longitudinal plane section; a perspective ofthe bed, with part ofthe face cnt away. The face ofthe bed is represented -by B; thelongitndin'al partitions are represented by l'; and the transverse partitions by l". The core-prints or vent-holes, made in casting, are represented by F4 andmF5. The bed is so constructed as to form a succession of internal chambers, separated by partitions, the sides of which bed converge to a common bearing and uniti with the partitions in sustaining the pressure` that may be applied to any part of the face ol the bed. -By this construction such a disposition is made of the materiall as to bring every particle of metal in the partitions and sides of the bed directly in line between the points of pressure and linel of resistance; therefore no yield can be possible under any pressure that is supportable by iron'. y

The bed constructed as above described may lbe-made, together with the supporting frame- In such case said framework will' form the end braces l", the bed still remaining a hollow-chambered shell, the coreprnls making the openings or vent-holes F F5 through the sides of the supporting frame-work in those parts'which form the en d braces.

In applying material to the ink-fountain gauge to prevent the binding of the knife or cut-oi'f, Fig. 17, 011 the ink-feed roller S, Fig. 17, I use the following method, as one of the most convenient in manufacturing and durable for use; I place a piece or pieces of rubber packing or other elastic material, h, upon the vknife or cuto'f, said material being removed far enough fromthe edge of 'said knife as to avoid contact with the ink. I then place upon this elastic'material a thin bearing-plate or slips, f l, to receive the direct pressure of the set-screws m5. The pressure of' said set-screws is conveyed indirectly to the cut-ofiff, but prevented from being apositive irresistible pressure by the intermediate elastic .material h, so that the flow of' ink-can be entirely cutoff'on any part of lthe length of the` roller S? without binding or setting said roller. The gauge thus constructed is made movable, so that it ma-y be cleaned separately from the roller S6.

The holes u u, Fig. 16, in the frisket-finger are made large enough for small feed-guides to be placed under them on the tympan-sheet'. These holes have two prominent advantages over notches cut into the side ofthe linger-first, the linger is much stronger, having material left 011 all sides of the hole.; and second, the entire edges of the finger are left for clamping the sheet, holding 'it in place more rmly; also preventing tearing or wearing frail sheets by'contact with the corners made by notching the finger. The hole is made of a size to admit only a small guide, so

that the part of the finger between the hole and the printed matter may be made very narrow in order that the entire edge of the sheet may be griped by the finger 'while printing a sheet with a very narrow margin, in this respect differing entirely from a slotted griper for movable guides.

S, Figs. 1 and 5, is the lug, placed on the 1ever-projection of the platen-support or rocker R, which draws upon the upper face of the flange Y while projection S1 draws upon the under face of said flange for the purpose of firmly holding the platen in position during the time for taking the impression.

The bed B,Figs. 1 and 2, is made to incline backward at any angle between forty-five degrees and the vertical in order that the type may rest upon the face of said bed by its own gravity, preventing the loose type from working out of the form and the latter from bagging I am aware that an inclined bed has been used .in connection with a-'cylinder by G. P Gordon,

and also in connection with a reciprocating platen, inclined parallel to the bed, by P. W. Latcher.

Heretofore the general construction of presses has precluded the use of a bed inclined backward, at the same time with a vibrating, oscillating, or rocking platen, on account ofthe necessarily-extended sweep ot' the platen. vBy constructing a platen of the general nature of the one here shown the sweep is materially shortened, thus allowing the use of such a bed.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is l f 1. In a printing-press, such a construction of the ways, in or on which thewheels or .guides of the inking-rollers run, as shall raise such inkingrollers free from the distributing-cylinder or cylinders when approaching or leaving the same, substantially as and for the purpose described.

2. The traverse-cam C, whether Yattached, to crank-pin as a cap or forming part of the crankwheel, when .used in connection with the stud or pulley G, for the purpose set forth.

3. The mechanism described, or its equivalent, for imparting to the inking-rollers a positive motion in both directions over the form, combined with the mechanism or its equivalent for stopping the inking-rollers at the will of the operator without Astopping the press.

4. The positively-moving lever L and lever K `and connection M, combined for the purpose of giving motion to the inking-rollers, substantially as described.

5. The lever N g, combined with the connection M, for the purpose of disconnecting the levers L K, substantially as explained.

6. The mechanism described or its equivalent for stopping the inking-rollers, combined with the mechanism or its equivalent for preventing the inking-rollers from being set in motion at an improper time. l

7. The latch P, combined with the levers L K, for the purpose'of holding lever K and hookconnection M in position for reconnection and preventing the release of lever N at an improper time, substantially as specified.

8. A curved wedge or sleeve, 'i i2, combined with the freely-moving bearing MB, which sustains the force of the impression, and so arranged that the said wedge or sleeve may be set in dierent positions to produce varying degrees of impression, substantially as set forth.

9. The wedge or sleeve i t?, combined, as described, with the adjusting-bar T.

10. The set-latch L2 W, combined with a handle, V, as and for the object explained.

ll. In combination with such set-latch, thv projection X or bar 'I ofthe wedge or sleeve i I?, as and for the end speci'ed.

l2. The use of rubber packing or other elastic material for the purpose of relieving the cut-off of the ink-fountain from the direct pressure of the set-screws, substantially as set forth.

13. The additional lug S placed on the leverprojection of support It, in combination with the tlange Y, as and for the purpose described.

14. The type-bed B, inclined backward at any angle between the vertical and forty-five degrees, in combination with the vibrating, rocking, or oscillating platen A, constructed substantially as herein set forth.

15. A hollow bed, divided into chambers by means of internal partitions, substantially as described.

16. A frisket-nger provided with a hole or holes, u, substantially as and for the purposel specified.

MERRITT GALLY.

Witnesses:

L. C. MCNEAL,

E. D. THOMAS. (117)

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