US968747A

US968747A - Proof-press.

Info

Publication number: US968747A
Application number: US53564209A
Authority: US
Inventors: George L Drummond
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-12-30
Filing date: 1909-12-30
Publication date: 1910-08-30
Anticipated expiration: 1927-08-30

Description

G. L. DRUMMOND.

PROOF PRESS.

APPLICATION FILED DEC/.30, 1909. I I 95 747 Patented Aug. 30, 1910.

2 SHEETSSHEET 1.

G1 L. DRUMMOND.

PROOF PRESS.

APPLICATION FILED DEO.30,1909.

968,7?, Patented Aug. 30, 1910.

2 SHEETS-SHEET 2.

wdnaooeo iiinrn cannon L. nnunnonn, or Wanna WALLA, wasn nerou.

moor-PRESS.

Be it known that I, GEononL. DRUM-- MOND, a citizen of the United States, residing at Walla Walla, in the county of Walla Walla and State of Washington, have invented a new and useful Proof-Press, of which the following is a specification.

This invention is a press for taking proofs of type forms and the object of the 1nvention is to provide a simple and compact device by which proofs of matter may be taken readily and rapidly. This object is attained in the use of the mechanism illustrated in the accompanying drawings, and the invention consists in certain novel features thereof as will be hereinafter first fully described and then particularly pointed out in the claims. I

In the drawings,-Figure 1 is a perspective View of a proof press embodying my invention, and Fig. 2 is a central vertical longitudinal section of the same with the paper grippers open. i

In carryin r out my invention I employ a base 1 from toe sides oi which rise standards 2, the said standards being connected at their wiper ends by a: cross head 3, as shown. The base 1 is provided inits u per surface with longitudinal grooves a apted to receive.

ribs 5 on the under side of a slidable bed 6 whereby the said bed may be removably sup ported upon the base and maintained in, lts

oroocr ebsition for the successful takin of l i o proof. Atone end of the base, short hoods 7 the slidablebed so as to facilitate the entrance of the bed into its proper position u )on the base, will be readily understood. The slidable bed is provided on three of its sides with upstanding flanges 8 and at its open end is provided with a handle 9 by means of which it may be withdrawn from its position" upon tho-Phase or returned. to that position. It will henotcd that the under side of the handle in the same plane as the bottom of the so that the handle aids in supporting the bed when it is drawn out, the handle resting on the stone or table and the rear closed end of the bed resting on the base, as will be understood. The platen 10. is mounted between the standards 2 above the bed and is supported by means of bolts 11 havin their lower ends swiveled to the of the standards,'--=a springv 13' being coiled v specification of Letters Yatent.

Application filed December 80, 1909.

.' are provided to overhang the open end of v platen an projecting through lugs l2'on the inner sides Serial No. 535,642.

areund eachbolt between the lugs 12 and having its lower end bearing upon the upper side of the lower lug and its upper end bearing againsta Washer 14 secured to the bolt, as shown, whereby the springs will tend to normally hold the platen in 1ts raised position. In order that the bolts may be readily fitted in place when the press is being assembled, longitudinal slots 15 areal-provided in the crosshead 3 through which the bolts may be readily passed when the ress is being set up or dismantled. In or er to lower the a short standard or projection 1.6 is providedvat the center of the platen on the upper side of the same and upon this projection or short Patented Aug. 30, rain.

standard is fulcrumed the operating lever 17 1 having its'shortcr arm formed into a hook 18 adapted to engage under a fulcrum bar 19 fitted in a socket in the under side of the cross bar 3, as clearly shown in Fig. 1. The handleor long arm of the lever 17 projects when the said end is depressed the inner shorter arm of the lever will rock upon the lower end of the fulcrum bar 19 and the pivotal connection between the lever and the platen will be forced to move downward and,

consequently, the platen and the paper'carricd thereby will be pressed against the ty efaces and an impression made upon 1; e

The paper passes from the v web across the a'djacentend of the platen and then under the platen and the blanket outward beyond the side of the press so that thereon to the opposite end thereof, whence its end is brought up across that end of the platen and lett free above the same.

In order that the paper may be held smoothly against the under face of thc platen, grippers 24 are provided at the opposite ends of j the platen and these grippers are in the form of cross bars 01" cleats adapted to engage grooves 25 inthe edges of-the platen and held normally. in engagement with the said grooves by. springs 26 secured to the ends of the cleats and the "side edges of the platen, ,as clearly shown in Fig. 1, and as will understood. The grippers are supported and guided by lugs 27 at the ends of the platen and they may be withdrawn from. their ongagement with the grooves in the ends of the platen by means of bails 28 which are cured to the ends of the grippers and extend inward therefrom over the platen, the inner central portions of the bails overlapping and being connected to slidable thumb pieces 29, as shown. These thumb pieces 29 are -provided wi h longitudinal grooves 30 in their (31 101 faces which are adapted to engage ribs 31am the inner faces of guides 32 erected on the upper side of the platen, and the opposed faces of the thumb pieces are smooth and bear-against each other whereby the thumb pieces will be held in their proper operative position and may be readily moved 111 opposition to the springs 26.

When it is desired to release the pap from the platen the slides 29 are pushed i ward each other thereby causing the grippers to move away from the end edges of the platen in opposition to the springs 26, whereupon the projecting end of the paper may be grasped so that the piper may be drawn under the platen. When all of the paper containing the impression has been withdrawn from its position under the platen, the slides 29 are released so that the springs 26 will at oncereturn the grippers to their position and again grasp the paper so as to hold the same taut against the under side of the platen and the portion of the paper containing the impression may be readily severed by pulling the same against the blade 3 secured to and projecting upward from the gripper at the side of the press opposite the side carrying'the web of paper. In order that the web of paper may be retarded in its unwinding and consequently will be maintained taut and smooth on the under side of the platen, I employ leaf springs 34 which are secured on the upper side of the platen and bear against the upper side of the web roll, as shown,

and as will be readily understood. Secured to the. cross head 3 is a small inking table 35 from which ink may be taken and placed upon the type faces through the medium of an ordinary hand roller, as will be readily understood.

The construction and arrangement of the several parts of my press being thus made known, it is thought the manner of using the same will be readily understood. The bed 6 is removed from the press and the type form or the galley containing the same is placed within the bed and the bed is then returned to its position upon the base of the press. The bed is provided with a shallow recess 9 in its upper side at its front end, the depth of the recess being equal to the thickness of the bottom of astandard galley. il'flte end of a galley be placed in the recess. the surface upon which the type form rests will be flush with the bottom of the bed and the type form may then. it' desired, be moved trout the galley onto the bed as is now customary. The paper having been stretebet'l under the platen in the manner described the hand lever i7 is lowered so as to carry the platen, with the attached paper, against the type fares and take an impression of the same. it being understood that before the type is placed in positloir tion of the paper containing the iinpression being, withdrawn, the grippers are permitted to return to their initial position and the paper is severed in thedescribed manner after which the bed is removed to permit.- corrections of the type or the substitution of another type form.

My device is exceedingly simple in its construction and operation and the several parts are compactly arranged so that its advantages are believed to be manifest.

Having thus described my invention, what I claim is:

l. A proof press comprising a bed, a platen, means for moving the platen toward and from the bed, a paper roll on the platen, grippers t'or removably holding paper from the roll against the edges and under face of the platen, and a knife carried by one of said grippers.

2. The combination of a bed, a. platen, means for moving the platen to and from the bed, grippers'adapted to engage the end edges of the platen and clamp a sheet of paper thereto, a knife carried by one of said grippers, and a support for the paper at the opposite end of the platen.

3. The combination of a platen, grippers mounted at the ends of the same, springs secured to the ends of the grippers and the sides of the platen to hold the grippers normally against the platen, oppositel moving slides mounted on the upper si e 0f the platen, and bails connecting the slides with the grippers whereby the grippers may be moved in opposition to the springs.

4. in a proof press, thecombination of a base provided with longitudinal grooves in its upper. side, a bed provided with longitudinal ribs on its under side engaging the said grooves wherebythe bed will he slidably supported on the base, flanges closing three sides oftheh'ed, and hoods rising from I engagement with the said grooves, and y the base and overhanging the flanges next means for moving the grippers in opposition the open end; of; the bed. fa to the springs. v v i5. The co'njibinatio n i'qfi'e platen having In testimony that I claim the foregoing 5 grooves in' its end "edges, 'lugs p'ro'ecting as my ojwvn, I have hereto aflixed my signa- 15 from the :said edges, grippers siidgibly ture m'the presence of two witnesses.

mounted-between the said lugs and adapted GEORGE L. DRUMMOND. to engage-the s'aid grooves, springs secured 'W'itnesses: to the ends (if the grippers and the sidesof I W. L. S'rmLI e,

A. E. BUCKNER.

1) the platen tohhol d the grippers-normally in