US538296A - Printing-press - Google Patents

Description

8 Sheets-Sheet 1.

(Nio Model.)

H.. SWAIN.

PRINTING PRESS.l r Y Patented Apr. so, 1895.

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(No Model.)

H SWAIN PRINTING PRESS.

No. 538,296. Patented Apr. so, '1895.

'WITNEEEEE INVENTUP.

(No Model.) 8 Sheets-#Shet 3.

: H. SWAIN.

l PRINTING PRESS. No. 538,296. Patented Apr. 30, 1895.

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. H. SWAIN.

PRINTING PRESS. No. 538,296. Patented Apr. 30, 1895.

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H. SWAIN. PRINTING PRESS.

No. 538,296. Patented Apr. 30, 1895.

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. PEIN'JIING PRESS. No. 538,296. Patented Apr. 30, 1895.

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H, SWAIN. PRINTING PRESS.

No. 538,296. Patented Apr. 30, 1895.

WITNESEEE INVENTUR l A twg/41, 'WMM/f @QM nADwEN swAIN, or SAN ATENT FRANCISCO, CALIFORNIA.

PRINTING-PRESS.

SPECIFICATION forming part of Letters Patent 1\To. 538,296, dated April 30, 1895.

Application filed October 2 8 1 89 3.

To all whom t may concern:

Be it known that I, HADWEN SWAIN, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Printing-Presses; and I do hereby declare the'following to be a full, clear, and exact description of said invention, such as will enable othersskilled in the art to which it most nearly appertains to make, use, and practice the same.

This invention relates to improvements in printing presses and more particularly to that class known as the old styleGordon presses, and it consists in the novel construction and arrangement of the parts as herein set forth.

The objects of the present invention'are, to provide a throw off for the swinging frame that will be rapid and easy of manipulation andvwhichwill be locked in position to prevent any accidental disarrangement of the parts; to provide a rigid frame; to provide a fountain by means of which the supply of ink on the plate may be regulated or dispensed with when desired without necessitating the removal of the fountain or parts of the machine; and to provide gripper ingers which may be depressed upon the vplaten when thrown back to ascertain the alignment and spacing of the impression.

In the drawings, Figure 1 is a perspective view of a press havingl these improvements. Fig. 2 is a side elevation of the same. Fig. 3

l is a detail view in perspective of the eccentric by which the advance of the swingingframe is regulated. Fig. 4 is a detail View in perspective showing the construction of the rocker crank. Fig. 5 is the same View showing its connections with the eccentric and lever rods. Fig. 6 is a detail View in perspective of the spring lock on the lever rod. Figs. 7, Sand 9 are detail views showing the relativepositions of the rocker crank and the eccentric and lever rods during the operation of the throw off. Fig. 1&0 is a perspective View of the stationary frame showing its solid construction. Fig. 11 is a rear elevation of the same. Fig. 12 is a sectional view of the fountain showing its connection with the parts of the swinging frame and inking rollers. Fig.

13 is an enlarged detail in perspective of the fountain and ratchet and pawl attachment by sein No. 489,383. (No model.)

which the feed roll is turned. Fig. 14 is a section through the fountain showing its adjustments. Fig. 15 is a side elevation of the platen showing the gripperfinger attachments. Fig. 16 is the same view showing the gripper fingers depressed upon the platen.

4The letter A designates the stationary frame of the press. The sides are constructed solidly and are joined by the front and back webs. The castings are made as light as is compatible with strength. By making the whole frame as is shown, in one casting I get greater rigidity than in the bolted frames now in use on these presses. The table A4 is also cast with the frame adding strength thereto.

Upon the frame A is mounted the swinging frame B and the usual gearings and driving mechanism by which the swinging frame is propelled back and forward in the operation of; printing.

I To regulate the throw of the swinging frame so as to prevent its advance upon the platen when not desired I connect the draw-bar X of the press to the swinging frame B by means of an eccentric BC By rotating this eccentric the connection is shifted backward or forward to regulate the advance of the swinging frame. This is accomplished in the present invention by means of the throw of mechanism the parts of which are designated bythe letter C. They consist principally of the bell-crank lever CK, collar C12, rocker C4, and the connecting rods C3 and C11. The bell-crank C is fulcrumed at C2 upon the stationary frame A and is provided at the free end with a handle in easy reach of the operator feeding the machine from the table A4. To the lifting arm of the lever is connected the rod C3 which is attached to the rocker C4 and transmits any motion of the said lever thereto. The rocker C4 is fulcrumed at C5 to the stationary frame A and is yoke-shaped at the free end to receive the ends of the rods C3 and C11 upon a bolt passed through the ends of the yoke arms and said rods. The rod C11 extends from the rocker on the stationary frame to a lug on the collar C12 rigidle secured on the eccentric shaft B of thy swinging frame B. The draw-bar X is connected to this shaft by the eccentric pin ICO B2 which as the shaft is rotated is thrown to and from the driving wheel of the press and thereby changes the position of the swinging frame B relatively to the platen on the stationary frame.

By means of the mechanism as described above and shown at Fig. 2 of the drawings it will be seen that as the handle of the bell-crank C is thrown away from the operator the lifting arm of the hell-crank is depressed and this movement is transmitted through the rod C3 to the rocker C4 and rod C11 to the lug on the collar C12 on the shaft B rotating the same as to throw the eccentric B2 toward the drive wheel, and the swinging frame B back so that the type will notimprint on the platen. WVhen now the handle is drawn toward the operator the above described action is reversed and the swinging frame is thrown forward so as to make an impression on the forward stroke of the drawbar.

'lo reduce any movement of the shaft B' during the impression and consequent variation of the force of theimpression, Ihave so fulcrumed the rocker C4 on the frame A that when the rocker is raised in position to throw the swinging frame forward, as above described, the pivotal connection between the rod C11 and the rocker will be in line with the pivotal connection of the swinging frame. In this way the traine and throw-olf are caused to swing on the same pivotal center.

To lock the parts in position, so that the vibration of the machine will not dislodge them, I have provided the brackets (16, CG and the latch 1 as shown in Figs. 4, 5, 6, 7, 8 and U. The rods C3 and C11 I separate in the yoke by the extension C10 which is cast integrally with the rocker (14. Upon either side of the rocker I provide the brackets (36, CG the ends of which rest against the side of the rod C3 when it is depressed as shown at Fig. 7. To permit the engagement of both of the brackets (36, 01" with the rod C3 it is provided with the slot C8 to engage the bolt in the end of the yoke arms of the rocker (34. This slot permits of the rod when depressed passing over the lower bracket CG. In this position it is impossible for the rocker to raise until the rod C3 is first drawn upward as shown at Fig. 8, so that the lower end of the rod passes out of engagement with the bracket C6 and into the valley between the two brackets, which it does as it pulls the rocker to an upright position, as shown in Fig. 9. In thislast position the swinging frame B is thrown toward the platen and in this position the parts are locked by the springlatch CT entering the slot C11 in the extension (110. The head of this latch is beveled on the side next the extension and on the end as shown in Fig. 6. The latch is attached to the rod CB and the head extends through an opening in the said rod provided for it.

When the rocker is drawn up by the rod C3 the extension C10 passes behind the said rod and in doing so the edge strikes the beveled side of the head of the latch and raises it until it falls in the slot C11 and the side of the rod C3 strikes against the stop C9 which limits the nioveinentof the rod in that direction. In this position the rod C3 and rocker C4 are locked until the rod C3 is depressed by the operator throwing back the handle of the bell-crank C when the beveled end of the latch head rides on the beveled end of the slot C11 and thus out of the slot. In this position the lowerend of the rod comes in contact with the lower bracket C6 on the rocker and causes the continued thrust to bear in turning the rocker down, until the parts are locked in the position shown in Fig. 7 and the swinging frame is thrown olf from making an impression upon the platen.

The letter D I use to designate all the parts of the machine which appel-tain to the holding and spreading of the ink.

The mechanism used in this invention for operating the rollers and tilting the platen is the satne as is known and used in the present presses.

The fountain I place in front of the ink plate D11 so that the feed roller D12 takes from the fountain roller D 7 on the up and down stroke of the feed rollers a supply of ink placing the same on the ink plate. The fountain roller D' I mount in the pivoted frame D. This frame is pivotally mounted upon the sides of the swingingI frame B at the lower ends of the arms Dt See Figs. l2 and 14. To one of these arms is connected the link D5 by means of which the fountain is advanced or receded, and is provided at the end where it is attached to the frame B with the set screw D11. The set screw is attached pivotally to the frame B and engages a threaded perforation in the end of the link D5 so that by turning the screw the link is drawn back and forward carrying the fountain.

The ink is carried in the fountain between the fountain roller D and the fountain blade D2 which is inclined to throw the ink toward the roller. To regulate the supply of ink to the roller I increase or diminish the opening between the roller and the edge of the blade by resting the forward edge on the line of set screws D3 which are threaded in the under side of the frame D. By raising or lowering the blade the space between the roller D and the blade is varied and permits a thick or thin layer of ink to pass out of the fountain on the roller. The roller D is rotated by means of the ratchet DG and pawl D7 on the link D8 which latter is pivoted on the roller D. The link D8 1 is vibrated to cause the pawl to engage the teeth of the ratchet and turn the roller by means of the rod Dit This rod is con- IOO IIO

nected to the vibrating device D15 which turns the ink plate D11 and is of any suitable known construction.

When it is desired to supply more ink to the rollers D12 and the iiow is even, this may be accomplished by forcing the fountain forward by turning the set screw D14 when the roller D being set forward the rollers D12 will bear harder on it and thereby take up more ink; or when it is desired to print extra heavy as when heavy black face type- (such as used in bill posting)-is being used, the fountain may be advanced until all ofthe rollers ride the supply roller D in passing thereby carrying an enlarged supply of ink to-the ink plate D115 or when it is desired to change temporarily the color this may be done by receding the fountain out of contact with any of the rollers andthe changed color of ink may be spread by hand until the press is ready for the ink contained in the fountain when it may be advanced.

As in presses now in use, the top rollers D12 of the set of ink rollers are used to spread the ink upon the ink plate. This roller is provided in this invention with enlarged carrier wheels which ride on the edge ot the swinging frame B and raise the rollers away from the type.

In this invention the upper and'inner edge of the sides ofthe frame are cut away t0 form the depressed track D13 shown in Fig. 12. The carriers on the rollerD12(u-e placed in the path of the depressed track so as t0 trave1 over it and thus permit this roller t0 come in Lcontact with the supply roller D while the carriers on the other three rollers passam I saved the. wear and tear on the retain-n ing springs which is caused by the extra stretch over the old style fountain.

The letter E I use to designate the parts of the gripper fingers. The construction to which this invention appertains is the flexible connection by which they are held in position and permitted to be depressed upon the platen for spacing. The gripper fingers E are hinged to the lugs E2 on the platen E The lower ends of these fingers are connected to the stationary frame A by the link E3 which is provided at the lower end with an elongated slot as seen in Fig.l5. ThelinkE3issecuredtothcframe A by the headed pin or vbolt E1. Between the forward end of the link and the pin E4 extends the spiral spring E5. This spring while allowing the link to advance until the gripper fingers E are depressed upon the platen, as shown in Fig. 16, immediately upon the said fingers being released returns them to the normal position as shown in Fig. l5. When now the platen is operated to fall, as shown in dotted lines Fig. l5, in the operation of the machinethe link E3 bears on the pin E4 and tends to throw the lingers forward against the platen causipg them to grasp firmly the paper being printed upon and maintains the same in position until the platen begins to rise, when the fingers are spread away from it to their original position.

Having thus described this invention, what I claim isl. In a' printing press the combination with the swinging frame the platen frame, and the throw-off for varying the movement of the swinging frame embodying the eccentric, rocker and rod connecting the rocker and eccentric, of the operating-rod connected with the rocker and having a limited independent longitudinal movement and a lock for holding the rocker in position when released by the independentl longitudinal movement of the operating rod; substantially as described.

2. In a printing press the combination with the swinging frame, the platen frame and the throw-oit for varying the movement of the swinging frame, embodying the eccentric and rocker, of the operating rod connected with the rocker and having a limited independent longitudinal movement and a spring lock connecting the rod and rocker when at the upper extremes of their movement, adapted to be released by the independent downward movement of the rod; substantially as described.

8. In a printing press the combination with the swinging frame, the platen frame and the throwott for varying the movement of the swinging frame embodying the eccentric, rocker and rod connecting the eccentric and rocker of the operating rod pivotally connected with the rocker and havinga limited longitudinal movement independent of the rocker, locking projections on the rocker with which the rod engages when the rocker and rod are at the lower extreme of their movements, the rocker being released by the independent upward movement of the rocker and the spring lockv rigidly connecting the rod and rocker when at the upper extremes of their movement, adapted to be released by the independent downward movement of the rod; substantially as described.

4.- In a printing press such as described the combination of a swinging frame, with a platen frame, and a throw-off consisting in the rod C3 the rocker C1, rod C11 attached to the eccentric B and the brackets 011, 6 Vsubstantially as described.

5. In a printing press such as described the combination of a swinging frame, with a platen frame and a throw-off consisting in the rod C3 the rocker C4 provided with the extension C10 the rod 11 attached to the eccentric B and latch O1 on rod C3 adapted to engage extension C10 and lock Ioc IIO

the rod C3 thereto substantially as described.

G. In a printing press such as described the combination of a type frame to hold the type, an ink plate, oscillating ink rollers,a fonntain adapted to feed to the said ink rollers placed between the said type frame and ink table, and a track or way for the said rollers to lift them away from the type and lower them to touch the said fountain in their oscillations, substantially as described.

'7. In a printing press such as described the combination of a type frame to hold the type, an ink plate, oscillating ink roller, a fountain adapted to feed the ink rollers, placed between the said type frame and ink table, said fountain being adjustable toward and from the path of the rollers, inking rollers and a track or way for the said rollers having a eut away or depressed portion whereby some of the rollers touch the fountain and are held away from the type during their os cillations; substantially as described.

8. In a printing press such as described the combination of a type frame to hold the type, an ink plate, ink rollers mounted on carrier wheels, a fountain placed between said type frame and ink plate, and a track or way for the said carrier wheels having a cut-away or depressed portion and adapted to lower one set and raise the other as they pass over the said fountain, substantially as described.

ln testimony whereof I have hereunto set my hand this 20th day of October, 1893.

HADWEN SWAIN.

Witnesses:

E. F. MURDOCK, E. R. ELLIS.

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