US96579A - Improvement in printing-presses - Google Patents

Description

UNITED STATES PATENT OEEIcE.

MERRITT eALLY, or RYE,Ass1GNoR To. JALLEN CARPENTER, or ROCHESTER,

- NEW YORK.

IMPROVEMENT IN PRINTING-PRESSES.

Specification forming part of Letters Patent No. 96,579, dated November 9, 1869.

To all whom it may concern:

. Be it known that I, MERRITT GALLY, of

Rye, in Westchester county, and State of New f York, have invented a new and useful Improvement in Printing-Presses; and I do hereby declare that the following is a full and exact-description thereof, reference being had to the accompanying drawings, and tothe letters of reference marked theron, l

- Figure l represents a side view of the press, showing the parts claimed, both sides being substantially alike in construction. Fig. 2 represents a changeable ink-fountain for different kinds or colors of ink. Fig. 3 represents the methodof holding the chase in place against the bed. Fig. la, Sheet 2, represents a perspective view of the ink-fountain with the shell or tank and gage in working position. Fig. 2 represents a perspective view of the ink-fountain with the tank or shell relieved from the gage. Fig. 4, Sheet 3, represents a plane sectional view of the press, dividing-bed and platen (whenin position forthe impression) through their centers, showing the depressions of the sides of the bed and frame-work for letting in the cranks or crank-wheels F F behind theface of the bed, also showing the position of compound lever and weight H H' W and the relative position of the levers T T with respect to the cranks F F. Fig. 5, Sheet 3, represents a face view of the platen, together with the apparatus for workin g the gripers orfrisketfin gers.

vI will now describe more fully the several parts represented, together with the several results obtained.

The plateA-is supported onvcurved supports or rockers R, resting upon rocker-seats a, as in my Universal Printing-Machine;7 for which application for Letters Patent was led November 18, 1867. By properly shaping the curves of the supports or rockers Rwith respect to the center of gravity of plate A, said plate may be made to remain perfectly self-balanced at every point in its movement without the aid of springs, guides, counter-weights, or any appliance using force or weight, so long as the rockers remain xed in position and the curves of the faces of said supports or rockers remain unchanged. Therefore, to prevent the wearing away or attening of the curved faces of the rockers Rat their points of contact with the rocker-seats at the time the direct impression of the paper is made upon the types by plate A, I attach a hardened friction-roller, l?, to each rocker, the face of said friction-roller being slightly ilush with the curved facesof the rockersV R, thus preserving the curves of said rockers, and therebyretaining their proper relation to the center of gravity of plate A. i

While the paper is being pressed against the types the rockers R are heldin position-by a lever or levers projecting from said rocker or rockers, which lever is provided with a frictionroller or equivalent lug, stop, or'stud, P ,which comes in contact with the under surface of the A flange V.' Y

I make the rocker-seat-a either plain-faced or toothed, or both, or plain-faced-with a rack in combination, meshingwith a toothed segment ontherocker or rockers R. I make the rocker seat or seats in any of the above methods,-and render rocker-seat or rack, or both combined, self-adjusting by the addition of the spring c,

4which allows slight movement under pressure.

Motion is given to the rockers R, and thus to plate A, for making the impression and carrying the paper vto and from the types, by means of cranks or crank-wheels F F uponva driving-shaft behind the vcounter-plate B, acting through connection-rods or draw-bars D D, as fully shown in Fig. 4.

As great power is required for vthe impression, the cranks or crank-wheels F must necessarily be-made very strong and'thick. 0n printing-presses in common use, on which similar cranks or crank-wheels are used fora like purpose, said cranks or' crank-wheels are 'placed so as to extend entirely beyond the sides ofthe bed, making the drivingshaft of greater length, and increasing the length of the collar of plate A, (where the draw-bars take hold) to suchranextent as to subject both driving-shaft and collar to great strain. To prevent this unnecessary strain, I 'depress vthe sides of the bed and framework behind the faceB of said bed, and let in'the crank- Vwheels F F', Fig. 4, in such a manner as to allow but a small portion of the crank to extend beyond the sides of thebed. 4This -shortens both driving-'shaft and collar, and-brings the draw-bars D D much closer; and,vas -I y (30111D1011 manner.

" draw-bars and cranks," or between draw-bars and platen-collar, the draft of the draw-bars D D is brought close to the journal-bearings of the driving crank-shaft, making the machine jmuch stronger than if constructed in the The-bed is not weakened by depressing the sides for the crank-wheels, as said depressions lie behind that portion of the face of the bedk on which the chase and furniture rest, and where no pressure is ever applied.

The cranks Ii" project beyond the side of the bed only far enough to allovT free passage for the roller-carriage, and the levers T T are pivoted behind, and in line with, said cranks,

outside of the body F of the crank-wheels, re-

' quiring no space between the crank-wheels and bed or frame-work. Said levers are -so shaped by'a curve passing above and partly around the cranks as to allow them full sweep without contact'with said levers'. I work the levers T T- by an outside cam or traverse on one of the crank-wheels. One of the crankwheels, F', is enlarged, so as to form the large driving gear-wheel g4 g4 of the press, and the shaft 40, through which the levers T Tract in unison, passes through the frame-work behindlsaid gear-wheel, bringing the said gearwheel `betweenone of the levers and the side of the 'frame-work. The end h of the leverT may be made to move in a direct line parallel with the fa'ce of ythe types, or at any angle from such line, instead of describing an arc'of a circle. This l do'by allowing the pivot 'z to `traverse the '-slotted fulcrm S, instead Yof making ita fixed center.` I balance the inking-rollers by using the double lever and weight H H W, which projects `forward bei t tween thesides 4of the supporting frame-work, not increasing the dimensions of the press.v

-The face of the type-bed'B always inclines backward between a vertical andan angle of forty-jive degreesfrom a vertical, so that` `the types rest upon said face without danger of being drawn out of the form' by the inkingrollers or bagging the form,77 as is `common in presses where the face of the bed is at'any time vertical or leaning forward. As the form `inclines backward, no device is necessary for holding the chase against the bed Vtoprevent the form from tipping forward. d The spring b e, to which is attached a small pin, grasp's the chaseY, holding it against the face of the bed B, to prevent its being forced forward by accident. By pressing the spring upward the catch is withdrawn and the chase is relieved.

The backward inclination of the face ofthe bed-B is sufficient for the perfect safety and. proper workiugiof most forms when said' inclination varies from a vertical at an angle of from one to three degrees only; but it may be extended to a muchV greater angle without disturbing the self-balancing properties of the `counter-plate A. This is done byeither one of the two following methods: First, by simply extending the curves of the rockers It farther forward, which will allow the plate A to" tip "farther forward without aiecting the equilibrium. The second method is, by either inclining the rocker-seats a from a horizontal or varying the curve of the rockers R, or both. Plate Amay be made to preponderate either vforward or backward, or vary in preponderance at different points in its movement, if desired, by varying the curve of rockers or inclination of rocker-seats, without the aid of springs or counter-weights or the application of any force. In this way momentiun maybe overcome or used at any point of movement; and, by making rockers or rocker-seats, or both, adjustable, the momentum of plate` A may be exactly overcome` at any given rate of velocity in its movement. Plate A may be used either as bed or platen.

I make the part of the ink-fountain which supports the gage separate vfrom ythe trough or shell, that it may be easily thrown backward, or be detached from the trough. The trough can then be easily cleaned or exchanged for another containing a 'different kind or color of ink. Fig'. 2 represents an end view of the inki'ountain, partially showing the same in position for changing the trough.

' I work the frisket-iingers by means of arod and coiled springs t t, in connection with a lever, d4, which lever is attached to the fingerbar S2, as shown in Fig. 5, Sheet 3. The rod is furnished with nuts or stops m m", and also passes through the swivel-eye m, which is attached to the frame-work of the press. The spring at t closes the frisket-iingers against the platen as the platen moves forward, and the spring at t` opens the same when the platen "to allow time for properly placing the sheet -`upon it."

To accomplish this object I use either of two methods: first, a slot, c, is made in each of the draw-barsD, and, as the diameter of the sweep of the cranks F is greater than the required lateral motion of the4 draw-bars D in moving plate A forward or back, the crank-pins D5 are allowed to traverse the slots o5 during a part of the time of the sweep of the cranks, thus giving a -period of rest to plate A. The second method is by slotting the opposite ends of the draw-bars D D and allowing said drawbars to slide, during a part oftheirlateral movement, upon the pins or journals d6. In the first method the draw-bai's'D D have no lateral movement during the time of rest of plate A. In the second method the draw-bars D D have a constant lateral motion during the time of restv of plate A, but are allowed to slide upon the pins or journals d d6.

to secure by Letters Patent, is-

1. The plate A, used either as bed or platen of a printing-press, in combination With the friction roller or rollers, or equivalent studs, stops, or lugs P', flange V, or its equivalent, and curved support or rocker R, substantially as herein described, andfor the purpose herein set forth.

2. The spring C, in combination with a toothed rocker-seat, or plain rocker-seat and rack combined, substantially as herein described, and for the purpose herein set forth.

3. The supporting frame-work G, or combined frame-Work and bed G B,When the sides of said frame-Work orcombined frame-work and bed are depressed, for letting in the cranks or crank-Wheels F, substantially as herein described, and for the purpose herein set forth.

4. The levers T T, when said levers are pivoted behind the cranks or crank-Wheels F F, in line with said cranks, and so curved as to allow full sweep of cranks F Fwithout contact of said cranks and levers, substantially as herein described, and for the purpose herein set forth.

5. The levers T, lin combination with the slotted lfulcra S, substantially as herein described, and for the purpose herein set fort-hi 6. The levers H and H and Weight W, combined and arranged substantially as herein described, and for the purpose herein setforth.

7. The method herein described for perfectly balancing or varying the counterpoise of plate A, (used either as bed or platen of a printingpress,) avoiding the necessityr of the use of counter-weight springs or the application of force, for the purposes'speciiied, substantially as herein set forth.

8. A changeable ink-fountain, vwith changeable linings, shells, or tanks, for different kinds or colors of ink, Whether constructed in the precise manner herein described or in any other manner, to produce the same result.

9. The combination of rods and springs t t, nuts or stops m m', griper-bar s2, With lever d4, and swivel-eye m, substantially as herein described, and for the purpose hereinset forth.

10. The draw-bars D, with slots c5, in combination with crank-pins d5, substantially as and for the purpose set forth. v

MERRITT GALLY.

Witnesses WM. A. GALLY, L. C. MCNEAL.

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