US247574A - Peess - Google Patents

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US247574A US247574DA US247574A US 247574 A US247574 A US 247574A US 247574D A US247574D A US 247574DA US 247574 A US247574 A US 247574A
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    • B41F1/00Platen presses, i.e. presses in which printing is effected by at least one essentially-flat pressure-applying member co-operating with a flat type-bed
    • B41F1/22Platen presses, i.e. presses in which printing is effected by at least one essentially-flat pressure-applying member co-operating with a flat type-bed specially adapted for printing heads, e.g. letter heads


(ModeL) 2 Sheets-Sheet 1.
No. 247,574. Patented Sept. 27,1881.
.flzrelalol' 7/5672 eases N. PETERS. Fnmn-Ulhogmpher. Washington. D. c.
(ModeL) 2 Sheets-Sheet 2 A; NEWBURY.
I No. 247,574. Patented Sept. 27,1881.
EPEGIFICATION forming part of Letters Patent No; 247,574, dated September 27, 1881. Application filed May 26, 1880. (ModeL) To all whom it may concern:
Be it known that I, ALONZO NEWBURY, of- Ooxsackie, in the county of Greene and State of New York, have invented certain new and useful Improvements in Printing-Presses, of which the following is a specification.
Although my improvements may be embodied in presses of various kinds, most of them are particularly adapted to job-presses.
Theinvention consists in the combination, in a printing-press, with a frame which carries a rotary ink-distributing disk and a swinging bed connected with said frame, but having independent supporting-arms, of a toggle for imparting motion to said frame and bed, a rotary driving-crank, and a rod connected directly to the crank and the center joint of the toggle, and serving to impart motion to the toggle.
It also consists in the combination of a frame, an ink distributing disk supported thereon, and a novel construction and arrangement of lever, pawl, ratchet-teeth, and link for turning said diskfrom the movement of the frame.
It also consists in a novel combination, with an ink-distributing disk, of an ink-fountain,
ductor, and distributing roll or wheel for taking ink from the fountain and distributing it upon said disk.
It also consists in the combination,'with a frame supporting an ink-distributin g disk and a toggle for operating said frame, and adapted to permit of the proper movement of the togv gle within a small space.
It also consists in the combination, with the bed and inking-rollers, ot' a novel construction of devices for throwing off the inking-rollers from the form when it is desired to run the press without inking the form.
It also consists in a certain novel combination of the ink-distributing disk, the bed, the devices for throwingoif the inking-rollers from the form, and preferably, also, a lever or levers for operating the platen, all supported on one center or shaft at the bottom of the press,
whereby long supports are afforded for each of said parts, and the construction of the press is greatly simplified.
It also consists in the combination, with the platen and its supports, of a lever having a cam-slot for operating the platen, and a spring or yielding connection between said lever and bed, through which the lever and platen are operated from the bed.
It also consists in various details of construction and combinations ofparts, to be hereinafter more fully described.
In theaccompanying drawings, Figure lrepresents a side view and partial section of a press embodying my improvements, showing the parts in the act of making an impression. Fig. 2 represents a similar view of such a press, showing the parts in position for removing a printed sheet and substituting a blank sheet. Fig. 3 represents a plan of such press. Fig. 4 represents an end view and partial section of the lower portion thereof. Fig. 5 represents a detail view, showing the operation of the bed, the frame supporting the ink-distributing disk, and the toggle-joint. Fig. 6 represents a detail view similar to Fig. 5, only showing the parts in a different position. Fig.
7 represents a detail view illustrating the manner of supporting the inking-rollers, and Fig.
8 represents a detail view illustrating the manner in which the distributingrollor wheelcon- 8o veys ink from the ductor or fountain-roller to the ink-distributing disk.
Similar letters of reference designate corresponding parts in all the figures.
A designates the frame-work ofthe press, which is broken away in the various views to better illustrate the operating parts.
B designates a frame, which supports the rotary inkdistributing disk 0, which is constructed to rotate or turn upon acentral axis, a.
The fulcrum of the frame B is composed of two side rods or bars, B, upon opposite sides of the press, pivoted to studs a in the said Q frame, at their upper ends, and pivoted at their lower ends to a fixed support consisting of a 5 shaft or rod, D, arranged in suitable hearings in the frame A of the press, near the bottom thereof.
The mechanism for imparting the necessary motion to the frameB consists ofatoggle-lever, B pivoted by a pin or red, b, to the frame B, and pivoted at its other end to a rod or shaft, B which is provided with eccentric journals, so that by means of a lever, 15*, rod B and arm B the length of the toggle-levers may be adjusted, for a purpose hereinafter stated.
The side rods or bars, B, which support the frame B, are pivoted nearly in line with the center of gravity of the disk and frame, and hence as the frame and disk swing back and forth they are at all times approximately balanced upon said rods or bars. The ink-distributing disk 0 is supported so as to rotate freely upon its center a, and any suitable means may be employed for imparting the necessary movements. The disk is, in the present instance, constructed with a downwardly-projecting rim or flange, c, and in the lower edge of said flange are notches c, at a proper distance apart for producing the required feed of said disk.
Upon the axis'a of the distributing-disk G is fitted a pawl-lever,O, and c designates a pawl pivoted to the side of the lever G, and adapted to engage with the notches c as the lever C is oscillated back and forth, and thereby to turn the disk 0.
To control the movements of the pawl-lewr O, I employ a link, 0 provided with a slot fitting upon a stud, c fixed in a portion of the frame and pivoted at one end to the end of the lever O, as clearly shown in Fig. 1. When the ends of the slot in the link strike the stud c the pawl-lever C is actuated.
The mechanism here consists of a connecting-rod, D, connected directly to the center joint of the toggle B and actuated by a crank, D", upon a shaft, D to which motion is imparted, in theprcsent instance, by agear-wheel, D, and pinion D from a driving-shaft, D upon which is mounted a fly-wheel, D
The ink-fountain E, as here represented, is fixed to an arm, A, projecting from the frame A,and d designates the ductor or fountain-roll arranged therein. The distributing wheel or roll d, which carries the ink from the ductor or fountain-roll cl to the ink-distributing disk 0, is arranged upon a block or support, d pivoted to an arm, d projecting from the frame B, and d designates a spring, by which the wheel or roll d is keptin contact with the inkdistributing disk 0. As the frame B moves forward it carries the support (1 and causes the same to engage with a stop, d projecting from the arm A, which raises the said block or support and raises the roll or wheel (1 into contact with the ductor or fountain-roll d, from which it receives its supply of ink, which at the next movement of the press it distributes upon the disk 0.
At the time the wheel or roll (1 is moved upward in contact with the ductor or fountainroll d a pawl, (1, also fixed to the block or support d engages with a ratchet-wheel, d
upon the shaft or spindle of the ductor or fountain-roll (I, and turns the latter so as to carry the ink from the fountain E.
The bed F of the press is supported upon arms F, represented as pivoted upon the shaft or rod 1) at the bottom of the press, and as attached to the frame B by the rod or pin 1), passing through said arms; but the said arms might be separately attached to the sides of The arms G are connected to the frame A by I links 0, and as the frame is swung t0 and fro by the toggle-lever B the inking-rollers are passed over the disk 0, and thence down over the form upon the bed F.
The inking-rollers ff are here represented as three in number and connected with the arms G. Thetwo outside rollers,f, are mounted in hearings or boxes f which are attached to the ends of rods f longitudinally movable in suitable guides upon the arms G, and surrounded by springsf which hold the rollers tightly in contact with the ink-distributing disk or form as they pass over them.
The center roller, f, is mounted in bearings upon the ends of rods g, which are also longitudinally movable in suitable guides upon the arms G, and actuated by springs ,in a manner similar to the rods f which support the outside rollers, f. This arrangement of the rods 9 inside the rods f enables the middle roller to be readily removed if two only are desired; or it enables the side rollers to be removed if it is only desired to use the center roller. Thea-rrangementof springs hereshown is very advantageous, as it enables the proper pressure to be brought to bear upon the rollers,whether one,two, or three are used. Were the three rollers all arranged in one bearing the entire spring-pressure would be concentrated upon the remaining rollers, if any were removed; but with the present arrangement the proper and uniform amount of pressure is exerted upon each roller, whether one, two, or three are used.
The arrangement of the bearings for the rollers is such that they are free to move in any direction, and hence will readily accommodate themselves to any inequalities which may exist in the form or ink-distributing disk 0.
In order to provide for running the press without permitting the inking-rollers to touch the form, I employ throwing-off mechanism, by means of which the inking-rollers are removed or thrownoff the face of the form, so as TOC arms are kept below the face of the form bythe springs which actuate the inking-rollers, to draw them down upon the form.
The mechanism here employed for pressing the arms H forward to effect the throwing off consists of cams h, arranged upon a shaft, h, which by a lever, k may be oscillated so as to cause the cams to act upon the cross-bar H and throw off the inking-rollers from the face of the form. To the shaft h is attached a stop (shown clearly in Fig. 6) consisting of an arm,
t, provided with a set-screw, t", to give the necessary adjustment, and which, when the said shaft is turned so as to relieve the pressure of the cams h, strikes against the bed and prevents further movement of said shaft. By this stop the amount of pressure which it is possible for the inking-rollers to exert upon the form may be nicely graduated and the wear of the rollers compensated for.
The platen l of the press is pivoted to the frame Aatj, and is provided with an arm, I,
rigidly secured thereto.
J designates a lever preferably pivoted at its lower end to the shaft or rod D, and having near its upper end a cam-slot, k, of peculiar form, which receives a roller, l, upon the arm 1 of the platen I. This cam-lever derives a swingingor oscillating motion upon the shaft D from the movement of the bed F, and in this instance this connection is effected by a link, K, connected to the lever J and to a crossbar, F uniting the arms F, which support the bed F.
The lever J is swung forward wit-h the bed F, and the cam-slot k, acting upon the roller 1,
gradually brings the platen into a parallel position with the bed.
The link K is connected to the cross-bar F so that it has a considerable amount of longitudinal play therein, and m designates a spring upon said link, upon which the cross-bar presses as the bed moves forward. This is very important, as the bed moving forward causes the platen to move into a position parallel with the form before the spring at is materially compressed. The platen is held in such position by the end of the cam-slot k striking the roller 1, while the bed completes its forward movement, compressing the spring and causing the v form to move bodily toward the platen, so that they come squarely together and produce a perfect impression. When the bed commences its backward movement the resilience of the spring we holds the platen stationary until the form is removed from the impression, and hence prevents the smutting or smearing of the impression.
By manipulating the lever B the shaft B may be oscillated, and by reason of the eccentric journals of said shaft'the toggle-lever B will be lengthened or shortened, and theposition of the bed F adjusted to suit forms of different sizes.
L designates the fin ger-shaft, and n the fingers for holding the paper upon the platen '1, ready for an impression. As represented in Fig. 4, this finger-shaft is triangular, and the set-screws 0, for fastening the fingers, bear upon one of the flat faces of the shaft L, and, owing to the triangular form of the shaft, tighten ,in two directions.
From the end of the shaft L an arm, 19, projects downwardly, and qdesignates a stop projecting from the frame against which said arm rides. The arm 19 is heavier than the fingers n, and consequently the said arm remains in contact with the said stop and holds the fingers in an approximately vertical position while the platen moves back from them, thus affording provision for inserting the sheets upon the platen. It will be observed that the ink-distributing disk, the bed,the throwing-off mechanism, and the cam-lever for operating the platen are all supported upon asin gle shaft, D, thus greatly simplifying the construction of the press, and supporting said parts so that they are rendered easy of operation.
By my invention I produce a press which is simple in construction, which requires little power to operate it, and which, owing to the manner of connecting the platen and bed, is capable of producing very perfect work.
WVhatI claim as my invention, and desire to secure by Letters Patent, is-
1. Thecombination, in a printing-press, with a frame which carries a rotary ink-distributin g disk, and a swinging bed connected with said frame, but having independent supportingarms, of a toggle foriniparting motion to said frame and bed, a rotary driving-crank, and a rod connected directly to said crank and to the center joint of said toggle, and serving toimpart motion from said crank to said toggle, substantially as specified.
2. The combination, with the ink-distributing disk carried by a frame and furnished with a ratchet, of apawl-lever pivoted concentrically to said disk and carrying a pawlen gaging with said ratchet, and a link connecting said lever a fixed stop against which said pivoted bearing block or support is brought in contact by the movement of the said frame to raise the ink-distributing roller into contact with the ductor or fountain-roller, all substantially as specified.
4. The combination,in a printing-press, with a frame supporting an ink-distributing disk and a toggle for operating said frame, and adapted to move between the sides thereof, of arms for supporting inking-rollers, and sepa rate studs projecting outwardly from each side of said frame, to form pivots for supporting said arms, substantially as and forthepurpose specified.
5. The combination of the bed F, the arms H, the cams h, the shaft hf, and the lever or arm 1', provided with a set-screw, i, substantially as specified.
6. Thecombination,in a printing-press, with a frame for an ink distributing disk,abed, devices for throwing ofi the inking-rollers, and a platen, of rods, arms, or leversfor separately supporting said parts, all pivoted at their lower ends to a single common shaft near the bottom of the press, upon which they may vibrate to and fro with a long radius, substantially as specified.
7. The combination of the bed F, platen I, provided with an arm, I, carrying a roller, 1, the lever J, constructed with a slot, k, receiving said roller, the upright arms F, supporting said bed, a shaft, D, forminga fulcrum for both said lever and arms, and the yielding connection K between the lever and arms, all substantially as and for the purpose specified.
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