US630701A - Printing-press. - Google Patents

Description

No. 630,701. Patented Aug. 8,' 1899.

H. H. HosKlNs.

PRINTING PRESS. (Application filed Jan. 20, 1898.) @No Model.)

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PATENT Futon.

'HENRY H. IIOSKINS, OF NORCATUR, KANSAS.

' PRINTING-PRESS.

SPECIFICATION forming part of- Letters Patent No. 630,701, 'dated August 8, 1899. Application filed January 20,1898. `Serial No. 667,304. (No model.)

To @ZZ whom/ t may concern:

Be it known that 1,1 HENRY H. Hoskins, a citizen of theUnited States, residing at Norcatur, in the county of Decatur and State of Kansas, .have invented a new and useful Printing-Press, ofwhich the following is a specification. f i

This invention relates to printing-'presses of the variety comprising la bed'for supporting the type-forms and an impression7cylini der adapted toroll over Vthe type-form and carry the sheet to be printed. v The improvement is directed to the' aforesaid class of printing-presses, which are' chiefly designed to be operated `by hand; ybut the novel features may be embodied in cylinder-presses operated by steam or 4other power.

One of the chief-,objects in View is to lessen the labor usually required for operating a press of given capacity and to enable a superior quality of workto be accomplished.

A further purpose of the improvement is to enable the operator to Work the press with as little effort as possible and have the hands free for feeding the sheets tobe printed to the impression-cylinder,the latter being started on its return travel in either direction by a rebounding action, which is assisted by gravital force to cause the cylinder to return after a sheet has been printed and delivered upon the receiving-table.

Various other objects and advantages are contemplated and y,will suggest themselves to those skilled in the art as the details of the organized structure are disclosed, and for a full understanding of the merits and advantages of the invention reference is to berhad to the accompanying drawings and the following dei scription. I The improvement is susceptible of varlous changes in the form, proportion, and ,the minor details of construction without departing from the principle or sacriiicing any offthe advantages thereof, and to a full disclosure of the invention an adaptation thereof is shown in the accompanying drawings, in Which- Figure l is a perspective view of a hand cylinderfpress embodying .the-essential fea` turesof `'this invention. Fig. 2 isan elevation as seen from the remote side of Fig. l. Fig. 3 is a longitudinal section, the dotted lines showing the lifting-tracks elevated.

the parts when the impression-cylinder is f about at the limit of its. forward or outward travel. Fig; 6 is a detail'view in plan elevation. Fig. 7 is a detail section of a side portion of the press, showing more A. clearly the means for adjusting the type-.bed and preventin g lateral and longitudinald isplacement thereof.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters. Y

' The framework of the press comprises lon-v gitudinal tracks l, uprights 2, and suitable cross-bars connecting the tracks and uprights, so as to provide a substantial and rigid structure. In the event ofthe longitudinal tracks l being wooden sills they will be faced by iron or steel bars, which will resist the wear incident to Ithe traveling thereon of the impression-cylinder. The middle portions of the tracks are straight, and their end portions are straight and in a higher plane, and the parts intermediate of the middle and end portions are inclined upwardly and outwardly to provide a gradual ascent'and descent of the impression-cylinder when approaching or leav- ,ing'the elevated end portions ofthe tracks. Brackets 3 rise above the rear ends of the tracks 1 and have springs or buffers 4 in their front edges for theimpression-cylinder to impact against, thereby gradually checking its forward movement andfassisting materially invstarting the impression-cylinder on its returnv travel toward the front end of the press.

Brackets 5 are located at' the front ends of v IOO Similar rack-bars 10 are adjustably connected with the tracks 1 and are arranged eX:

terior thereto and are formed with vertical slots 1l, through which bolts or machinescrews 12 pass for securing the raek-bars in an adjusted position. The toothed edge of each rack-bar conforms to the upper surface of the tracks l, thereby enabling the gearwheels or cog-gearing at the ends of the impressioncylinder maintaining a uniform meshing relation with the rack-bars at every point in the length of its travel.

The type-bed 13 is adjustable vertically to provide for a proper adjustment between the type-surfaces and the surface of the impression-cylinder. Any suitable means may be employed for adjusting the type-bed and holding it in an adjusted position, and, as shown, set-screws li, mounted in threaded openings of cross-bars of the frame, have their upper ends in contact with the lower side thereof. Pins l5 between the said type-bed and the crossbars of -the frame retain the bed in position against lateral and longitudinal movement.

The impression-cylinder 1G, of iron or other suitable material, is provided at its ends with cog-gearing 17 to intermesh with the teeth of the rack-bars 10 and has end hand-wheels 1S, bymeans of which the cylinder is rotated when in operation. A longitudinal depression 19 is formed in a side of the impression-cylinder and receives the rod or shaft 20, provided with the grippers 2l, which take hold of the advancing edge of the sheet to be printed, so as to carry it forward when the cylinder is passing over the type-forms. One end of the rod 2O extends through one end of the impressioncylinder and between two of the teeth of the adjacent gear-wheel and is bent, as shown at 22, and is adapted to engage with a trip 23 at the rear end of the press, so as to turn the rod and release the grippers, and to engage with a corresponding trip 2l at the front end of the press to operate the rod 2O and close the grippers upon the sheet to be printed. The rear trip 23 is disposed so as to release the grippers when the impression-cylinder isreaching the end of its forward travel, thereby permitting the printed sheet to be deposited upon the receiving-table S. The front trip 24 is arranged to engage with the part 22 and close the gri ppers upon the advancing edge of the sheet as the impression-cylinder is completing its return travel.

The carriage for the inking-rollers 25 consists of a transverse rod or bar 2G and end bars 27, the latter having loose connection with the rod or bar 20, so as to admit of them and the inking-rollers having free vertical play independently of the rod or bar 2G. rlhe inking-rollers are of a length to come within the inner sides of the longitudinal tracks l, whereas the rod or bar 2G extends slight-ly beyond the outer sides of the rack-bars l0 and have loose connection with journals of the impression-cylinder by means of links 2S, having one end firmly attached to the rod 26 and the other end formed into a ring,r or bearing to receive the journals of the impresson cylinder.

Elevatin g-tracks 29 are located on the inner sides of the tracks 1 and are adapted to have a limited vertical movement and are held in place by headed pins or fastenings 30, passing through vertical slots 3l of the said tracks. The tracks 29 rest upon the end portions of rods or shafts 32 near the ends of the press and which have eccentric or cam portions 33, upon'which the tracks 29 directly rest, so as to be moved up and down at the proper time to effect the desired end. Arms 3i are pendent from the rods or shafts 32 and are connected by a rod 35, whereby the two shafts 32 move in harmony, so as to raise and lower both ends of the tracks 29 alike. An arm 3G is applied to an end of the rear rod or shaft and is adapted to be engaged by the impressioircylinder when nearing the limit of its rearward travel, so as to turn the shafts 32 and cause the tracks 29 to rise, thereby holding the impression-cylinder away from the type-surfaces when returning to the front end of the press. An arm 37 is provided at one end ofthe front rod or shaft 32 and is engaged by the im pression-eylinder when the latterisfinishingits return or forward travel, so as to actuate the shafts 32 and cause the tracks 29 to lower, thereby permitting the inking-rollers and iimpression-cylinder to engage with the type-surfaces when moving forward or toward the rear end of the press.

llates 3S are secured to the rear or deliveryend' of the feed-table 7 and project a short distance therefrom, so as to give proper support to the advancing end of the sheet and properly position it upon the impression-cyl inder to insure the grippers taking a firm hold thereof. A rod 39 extends over the rear or delivery end of the feed-table 7 and has its end portions bent, as shown at 10, and pivotally connected with the feed-table, and one of the bent ends is extended, forming an arm 4:1, which is curved slightly in its length and adapted to be engaged by the impressioncylinder to effect a movement of the rod 39, so as to release the sheet next to be `fed forward to be printed. Plates l2 are firmly attached at their upper ends to the horizontal portion of the rod 39 and their lower ends engage with the feed-table and constitute gages to limit the forward movement of the sheet to be printed until the impression-cylinder is in proper position to receive the ad- IOO IIO

vancing end of the said sheet, when the said table to be fed forward. Upon the return of the impression-cylinder to a startin g position it will engage with the arm 4l and ride thereunder, thereby lifting the outer or free end of the arm 4l and rocking the rod 39 upon the pivotal connection of its bent ends 40 with the 'feed-table. lThe rocking of the rod 39 throws the lower ends of the plates 42, rigidly attached thereto, rearwardly and upwardly, so as to admit of the passage of the sheet below the plates 42 to the impressioncylinder, when its advancing edge will be taken hold of by the grippers 2l in the manner herein set forth and well understood.

The press is operated in the following manner: The impression-cylinderandinking-rollers being at the front end of the press and upon the front elevated or raised portions of the tracks l, the operator grasps one or both of the hand-wheels 18 and starts the impression-cylinder toward the rear of the press. The forward inclined portions of the tracks l assist materially in urging the impressioncylinder forward, the impetus being sufficient to cause the impression-cylinder to ride upon the rear inclined portions of the tracks l and engage with the springs or buffers 4, which latter gradually check the rearward travel of the cylinder and give an initial impetus thereto on the return travel. During the forward and rearward travel of the cylinder the type-forms are inked by the inking-rollers traveling thereover, and as the cylinder reaches its rearward travel it`engages with the arm 36 and elevates the tracks 29 in the manner described at length herein, so that upon the return travel of the cylinder it will be held away from the type-surface, and as the cylinder approaches the limit of its return travel it will engage with the front arm 37 and cause a lowering of the tracks 29, and the sheet to be printed will be fed forward and taken hold of by the grippers 21 in the manner set forth. The end portions of the impression-cylinder will strike against the front springs or buffers G, which will check its return and assist in again starting the cylinder on its forward travel toward the rear end of the press. In order that the impression-cylinder may receive a sufficient impulse to carry it to the rear end of the press, the following means have been devised, and consist of a treadle 43, located within convenient reach of the feeders foot, so as to be pressed upon, and an impulse-lever 44, connected with the treadle by a rod 45 and having its active end projecting across the path of a pin 46, (see Fig. 6,) applied to the rim of the handwheel of the impression-cylinder adjacent to the said impulse-lever, whereby movement is imparted to the said im pression-cylinder upon pressing down upon the treadle 43. By this means the impression-cylinder receives an impulse without requiring the feeder or operator to apply the hands thereto and leaving them free to properly feed the press.

Having thus described the invention, what is. claimed, and desired to be'securedby Letters Patent, is-

l. In a cylinder printing-press, the combination with the impression-cylinder, and a pin applied to and proj ectin ghorizontally and eccentrically with reference to the said impression-cylinder, of a lever disposed to have the said pin project across the path of an end portion thereof, substantially. as and for the purpose described.

2. In a cylinder printing-press, the combination with the impression-cylinder having an end hand-wheel, and a pin projecting laterally from the hand-wheel and having an eccentric arrangement with reference thereto, of a lever having an end portion disposed to project across the path of the said pin, a treadle, and means connecting the treadle with the said lever, substantially as and for the purposes specified.

3. In a cylinder printing-press, the combination of a frame provided with rack-bars, an impression cylinder provided with gear- Wheels meshing with the rack-bars, the rod 20 mounted in a recess of the impression-cylinder and extending through one end thereof and having one end arranged in the space between two of the teeth of the adjacent gearwheel and bent at an angle, the grippers mounted on the rod 2O and adapted to engage a sheet of paper, a fixed vertical trip located near one end of the frame and arranged to engage the bent end of the rod, and a fixed horizontal trip located at the other end of the frame and arranged to engage the said bent end of the rod 20, to operate the grippers, substantially as described.

4. In a cylinder printing-press, the combination of fixed longitudinal tracks, movable tracks placed along the inner sides of the fixed tracks, positive connections between the fixed and movable tracks for guiding the latter in their vertical movements, an .impression-cylindermounted to travel upon the fixed tracks, an inking mechanism mounted to travel solely upon the movable tracks and receiving motion directly from the impression-cylinder, and means controlled by the impression-cylinder to raise and lower the movable tracks, substantially in the manner set forth and for the purpose described.

5. In a cylinder printing-press, the combination of fixed longitudinal tracks having upwardly-inclined end portions, movable tracks placed along theinner sides of the fixed tracks and having their tread surfaces straight throughout their length and passing by the inclined end portions of the fixed tracks, an impression-cylinder mounted to travel upon the fixed tracks, an inking mechanism mounted to travel solely upon the movable tracks and receiving motion directly from the impression-cylinder, and means controlled by the impression-cylinder to raise and lower the movable tracks, substantially as and for the purpose specified.

6. In a cylinder printing-press, the combi- IIO nection with the impression-cylinder to move therewith, and arms applied to an end portion of the aforesaid transverse shafts and projecting across the path of the impressioncylinder to be engaged thereby, substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto allixed my signature in the presence of two witnesses.

HENRY II. IIOSIUNS.

Witnesses W. P. ANDERSON,

JAOB IIOLBEN.

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