US703676A

US703676A - Printing-plate holder.

Info

Publication number: US703676A
Application number: US8812602A
Authority: US
Inventors: Edwin R Storm
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-01-02
Filing date: 1902-01-02
Publication date: 1902-07-01
Anticipated expiration: 1919-07-01

Description

No; 703,676. Patented luly I, |902. E. R. STORM.

PRINTING PLATE IIoLnI-n.

l (Application led Jan. 2, 1902.) (un Model.)

Mmesses: @a I jive/zwi:

n4: Nonm Prsns co. PnoTaL'IrHo.. WASHINGTON, uA c.

UNITED STATES PATENT OFFICE.

EDWIN R. STORM, OF NEW YORK, N. Y.

PRINTING-PLATE HOLDER.

SPECIFICATION forming part of Letters Patent N o. 703,676, dated July 1, 1902.

Application filed January 2, 1902. Serial No. 88,126. (No model.)

To a/ZZ whom, it' r11/ty concern:

Be it known that I, EDWIN R. STORM, a citi- Zen of the United States, `residing at New York, in the county of` New York and State of New York, have invented a new and useful Printing-Plate Holder, of which the following is a speciication.

My invention relates to improvements in holders for printing-plates in which plateclamps are used in conjunction with a grooved block; and the objects of Vmy invention are," rst, to provide a plate-clamp that may be inserted at any point ofthe groove and be quickly and :reliably secured thereto; second, to provide a plate-clamp that will hold the printing-plate to the grooved block when a sufticient number of the plate-clamps are secured in the grooves; third, to provide a plateclamp that may be quickly removed from the groove ywithout separating its component parts. l attain these objects by means of the devices illustrated in the accompanying drawings, in whichy Figure 1 is a view of a portion of the grooved block with a printing-platel thereon, showing two ofthe plate-clamps secured -in'positiom Fig. 2 isa sectional view ofA the block, showing the plate-'clamp secured within the groove holding theprinting-plateto position, drawn to an enlarged scale. Fig. 3 is a sectional view of the block and plate-'clarn'p,.sh`owing the method of entering theplate-clamp in the groove, drawn to an enlarged scale. Fig. 4 is a sectional View of the block and groove, showing the plate-clamp partlyin the groove, drawn to an enlarged scale. Fig. 5 is an isometrical view of the face-piece of the plateclamp, drawn to an enlarged scale. Fig. 6 is an isometrical view of the nut of the plateclamp, drawn to an enlarged scale. Fig. 7 is an isometrical view of a plate-clamp, drawn to an enlarged scale. Fig. S is an end view of a modified plate-clamp in which the sides 12'L 131 of the portion 6a are' not formed parallel and the nut is held by retaining-grooves Fig.

in sliding contact withthe portion 6". 9 is a side view of the plate-clamp shown in Fig. 8. Fig. 10 is a sectional View of the plateclamp shown in Fig. 8.

Similar numbers of reference indicate corresponding parts in the several views.

1 indicates the grooved block of my improved plate-holder, which block lis of the same construction as now in common use,ot` any desiredsize, and consists of a block having grooves 2 of greater Widthy at the lower `Jthan Aat the upper part.

The printing -plate 3 is .secured to the grooved block 1 by meansof the plate-clamps 4. The plate-clamps 4 have'each a face-piece 5, provided with a portion 6, a nut 7,"a screw 8, a countersunk hole 9, an edge 10, beveled to t against andholdthe edge of the printing-plate 3 when the plate-clamps 4 are secured in the grooves 2, and a shoulder 11. The portion 6 has one face 12, adapted to fit against the inclined sidev2 of the groove 2, a face 13, adapted to work against the face 14 of the uut 7, a face 15, formed to allow the nut 7 to approach the face 16 when the screw 8 is heldin the nut, and a face 16, formed to assist in inserting theV plateclamp in the groove and to remove the long sharp edge that would result in prolonging the

faces

12 and 15. 'The portion 6` is recessed at 17 to allow space for the screw 8 when the nut 7 is made to approach the face 16.

The nut 7 is formed with a face 14, adapted to work against the face 13, a face 18, adapted to work against the inclined sides 22 of the groove 2, two

faces

19 and 20, formed parallel with each other and at" a distance apart slightly less than the top ot' the groove 2, so the nut 7 may be easily inserted in the groove or withdrawn therefrom at any point, the thickness of the nut to be somewhat less than the depth of the groove. The nut 7 is provided with the threaded hole 2l.

The screw 8, fitted to andadapted to Work in the threaded hole 21, has the portion 22 of the head working in the countersunk hole 9 preferably formed as a portion of the surface of a sphere, while the countersunk hole 9 is formed to fit and adapted to receive the spherically-formed portion 22 of the head of the screw 8. c

The shoulder 11 is formed. to tit inl the groove 2 when the plate-'clamp is in position on' the block 1 and tends tokeep the clamp from turning when the screw 8 is turned.

The manner of using theplate-clamps is as follows: The tace-piece 5 and the nut 7 havingV been connected by the screw 8 passing through the countersunk hole 9 and working in the threaded hole 21, the screw S is turned until it is nearly withdrawn from the threaded hole 21. The spherically-formed portion 22 of the head of the screw 8 is brought to bear against the surface of the counter-sunk hole 9, and the nut 7, sliding on the surface 15, is held with its face 14 as near as possible to the face 1G of the portion (5. \Vit`n the several parts in the positions indicated the nut 7 is inserted at any convenient point in the groove 2, as indicated in Fig After the vnut passes into the groove it is forced to one side by the face 16 entering the groove and working against one edge of it. Continuing the insertion, the nut 7 strikes against the bottom of the groove 2 and is moved by the face 15 far enough to one side to permit the portion 6 to enter the groove 2, with its face 12 working against the inclined side 2' of the groove and its face 13 working against the face 14 of the nut 7. (See Fig. 4.) Pushing the plate-clamp 4 to place, with the face-piece 5 bearing on the top of the block 1 and the beveled edge 10 against the beveled edge of the printing-plate 3 and turning thc screw 8 so as to cause it pass further in the threaded hole 21, lifts the nut 7 from the bottom of the groove, causing the face 18 to bear against the inclined face 22 of the groove 2 and the face 14 to bear against the face 13 of the portion 6. The pressure against the face 13 is transmitted through the portion (5 to the face l2, which bears against the inclined face 2 of the groove 2. The inclined faces 2 22 of the groove 2 being immovable stop the upward movement of the nut 7 and cause it upon the continued turning of the screw to pull and hold the plate-clamp down to the face ot' the block 1, the portion 6 being forced to slide between the inclined side 2 of the groove and the face 14 of the nut 7. Vhen lhe turning of the screw 8 has taken up all sliding motion, it forces the nut 7 and the portion o in tight frictional contact with the inclined sides 2' 22 of the groove 2, as shown in Fig. 2, thereby locking the plate-clamp immovably upon the block. The beveled edge 10 being held in its desired position against the beveled edge of the printingplate at the moment of tightening the screw bears against the beveled edge of the printing-plate when the screw is tightened and tends to hold that portion of the printingplate to the block 1. Inserting a sulicient n umber ofthe plate-clamps within the grooves 2, causing them to hear against the beveled edges of the printing-plate, and tightening their individual screws will hold the printing-plate securely to the block 1.

lVhen it is desired to remove the plateclamp 4, the screw S is turned until it is nearly withdrawn from the threaded hole 21, the face-piece 5 is lifted, when the portion 6 slides between the inclined side 2 of the groove 2 and the face 14 of the nut 7. The nut 7 is forced by the inclined side 22 of the groove 2 to slide along the face 15, permitting the face 1G to slide against the upper edge of the inclined side 2 and the portion 6 to be wholly withdrawn from the groove, when the nut 7, attached by the screwS to the face-piece 5, is withdrawn from the groove 2 by the screw 8.

Not wishing to be understood that the face 13 must be parallel to the face 12 I have shown in Fig. J a modified form of the plateclamp, in which the face 13u is inclined to the face 12 and the nut 7 is formed longer than the portion 6 and is provided with the retaining-grooves 23, to which are itted the beveled ends 24 of the portion G. The beveled ends 24, working within the retaininggrooves 23, hold the nut 7 and the portion G in sliding contact.

Fig. S is an end view ofthe modified plateclamp shown in Fig. 9, the screw 8 being shown in dotted lines and given aconicalhead, as the spherically-formed head is not absolutely essential to the proper workin g of either form of plate-clamp.

Fig. 10 is a sectional viewof the plate-clamp shown in Fig. f), showing the nut 7 moved to position requisite for entering the plateclamp in a groove. Because ofthe retaininggrooves 23 and the face 13 being inclined to the face 12 the face 15 is omitted.

Having described my invention,I claim and desire to secure by Letters Patent- 1. In a holder for printing-plates the coinbination of a block having grooves adapted to receive and hold one or more plate-clamps, and plate-clamps held in the grooves each of said clamps consisting of aface-piece having a wedge-shaped portion adapted to enter and partly fill the said groove, a nut adapted to be inserted at any point of the groove and act in conjunction with the said portion in the groove to hold the face-piece to the block and a screw connecting said nut and face-piece.

2. In a holder for printing-plates the combination of a block having grooves adapted to receive and hold one or more plate-clamps and plate-clamps held in the grooves each of said clamps consisting of a face-piece having a portion adapted to enter and partly fill the groove, a face on the said portion adapted to lit against the side of the groove, a nut adapted to be inserted at any point of the groove while connected to the face-piece and act in conjunction with the said portion in the groove to hold the face-piece to the block, and a screw connecting said nut and face-piece.

3. In a holder for printing-plates the combination of a block having grooves adapted to receive and hold one or more plate-clamps, and plate-clamps heldin the grooves each of said clamps consisting of a face-piece having a portion adapted to enter and partly ill the groove, a nut narrower than the top of the said groove adapted to be inserted in the groove and act in conjunction with the said portion in the groove to hold the face-piece to the block and a screw connecting said nut and face-piece.

4. In aholder for printing-plates the com- IIO bination of a block having grooves adapted to receive and hold one or more plate-clamps, and plate-clamps held in the grooves, each of said clamps consisting of a face-piece having a portion adapted to enter and partly iill the groove, a nut of a width to permit it to beinserted at any point of the groove and adapted to act in conjunction with the said portion in the groove to hold the face-piece to the block, and a screw having the bearing-surface of the head formed as a portion of the surface of a sphere, connecting said nut and face-piece.

-5. In a holder for printing-plates the combination of a block having grooves of greater width at the bottom than at the top and plateclamps adapted to beheld in the grooves, each of said clamps consisting of a face-piece having a portion adapted to enter and fit against one side of the groove, a nut adapted to bear against the other side of the groove and the portion in the groove and act as a wedge in conjunction with the said portion to hold the face-piece to the block and a screw connecting said nut and face-piece.

G. In a holder for printing-plates the combination of a block having grooves of greater width at the bottom than at the top and plateclamps consisting of 'a face-piece having a countersunk hole therein, a screw passing through the countersunk hole in the facepiece and working in a threaded hole in a nut, and a nut adapted to pass into the groove at its upper part Without'withdrawing the screw from the said threaded hole, and a projecting portion on the face-piece adapted to beinserted in the groove vand prevent the withdrawal of the nut.

7. In a holder for printing-plates the combination of a block having grooves of greater width at the bottom than at the top and plateclamps having a nut formed to partly iill the groove and adapted to pass into the said groove at its upper part, a face-piece having a portion adapted to enter the groove, force the nut to one side and act in conjunction with the nut to hold the face-piece to the block, and a screw connecting said nut and face-piece.

8. In a holder for printing-plates the combination of a block having grooves of greater width at the bottom than at the top and plateclamps having a nut formed to'partlyll, and iit against one side of, the groove and adapted to pass into the groove at its upper part,

an inclined plane forming one face of the said nut, a face-piece with a portion adaptedv the portion against one side of the groove and the nut against the other side of the groove.

9. In a holder for vprinting-plates the combination of a block having grooves of greatery width at the bottom than at the top and plateclamps having a face-piece with a holding edge thereon, a portion extending from the face-piece formed to enter and fit against one side of the groove, a nut formed to pass into the groove at its upper part and partly iill the said groove, a face on the said extended portion formed to force the nut to one side in entering the groove, a face on the said nut formed to fit against and slide on the face formed on the said extended portion and a screw connecting the nut and face piece adapted to bring the nut in cooperation with the extended portion and hold the face-piece n to the block.

l0. In aholder for printing-plates the combination of a block having grooves adapted to receive and hold one or more plate-clamps, and plate-clamps held in the grooves, each of said clamps consisting of a nut formed narrower than the top of the groove, a facepiece having a portion formed to enter the groove supplement the nut and prevent its withdrawal from the groove and means, as a screw, adapted to Work in the nut to draw and hold the face-piece to the block.

1l. In a holder for printing-plates the combination of a block having grooves adapted to receive and hold one or more plate-clamps, and, plate-clamps held in the grooves each of said clamps consisting of a nut narrower than the top of the said grooves andv adapted to be inserted at any point of the groove, a face-piece having a portion adapted to enter and hold the nut'within the groove, and a screw connecting the nut and face-piece.

EDWIN R. STORM.

Witnesses:

ALFRED W. STORM, HENRY PALMER.

IOO