US399368A - berryman - Google Patents

Description

(No Model.)

M. W. BERRYMAN.

PRINTERS QUOIN. I

Patented Mar. 12, 1889.

UNITED STATES PATENT OFFICE.

)[A'llIElV \Y. BERHYMAN, OF NE\V YORK, N. Y., ASSIGNOR TO M. NICHOLS JOHNSON, SAME PLACE.

PRINTERS QUOIN.

SPECIFICATION forming part of Letters Patent No. 399,368, dated March 12, 1889.

Application filed June 11, 1883.

1'0 LLZZ whom it may concern:

Be it known that I, MATHEW lY. BERRY- MAN, a resident of the city, county, and State of New York, have invented new and useful Improvements in Printers Quoins, of which the .i'ollowing is a full, clear, and exactde scription, reference being had to the accompanying drawings.

The objectof my invention is to provide a more stable and rapid means of locking up the forms used in printing, so that each quoiu of a pair may be tightened upon the other and remain in position without liability to accidental displacement, and to provide means for rapidly unlocking the form.

My invention consists of wedge-shaped quoins provided with guides and ample bearing-surfaces and furnished with elastic pads let in their resisting or holding surfaces or adjusted so as to grip upon the landing-surfaces when in place, together with a device, which I term a lever-key,adapted with lugs to fi t in suitable recesses provided therefor in and upon the several quoius for the purpose of sliding such quoins upon the contact-surfaces of each other either to secure them in place or to loosen them, as may be desired.

In the accompanying drawings, Figure 1 is a plan view of a form locked up by means of my improved quoins. Fig. 2 is a. side view of a pair of such quoins. Fig. 3 is an end view of any such quoin. Fig. i is a face view of the quoins. Fig. 5 is a perspective view of any such quoin. Fig. (i shows the bottom or base side of a quoin with an elastic pad or grip let into it near its head. Fig. 7 is an elevation of the lever-key described herein, F beinthe cogged segmental periphery actuated bylever-handle upon pivot G in a guide, H, actuating rack-bar E therein, by which lug 6 upon such frame is caused to approach or recede from lug 6 upon the underside of the rack-bar. Fig. 8 shows the bottom of the .guide H with its slot 72 and lugs e e, the

former upon the guide H and the latter upon the under side of the rack-bar E.

Like letters of reference refer to like parts throughout the several figures.

A represents the chase; B, the form, and 0 straight pieces of furniture. D D represent my improved quoins. Their inclined faces are Serial No. 97,683. (No modeLl intended to slide upon each other, and are each provided near their largest ends with a short longitudinal central rib or guide, a, which, when the quoins are placed together, slide in a corresponding, but longer groove, B, in the opposite quoin and prevents any lateral displacement. These guide-ribs may be much shorter than the grooves in order to admit of greater longitudinal movement and consequent firmness. The large end or head of each quoin is recessed on each side of such rib with an opening, (I, to admit one of the lugs c c of the lever-key, Fig. '7, for sliding the quoins upon each other, as may be needed. The sliding faces occupy the remaining width of the quoins in order to afford the best prac ticablc bearing to obviate lateral displacement. The underside or base of the quoins is provided with a grip formed from an elastic or compressible material, fsuch as rubber, or a fabric thereofliaving a surface that does not readily become coated or polished by friction set into a depression in its surface or attached thereto, and when the quoin is not in use such material projects slightly above the surface of such base. The area of such grip is intentionally limited in extent to avoid the resistance which would have to be overcome if it practically covered the base, and yeta sufficient degree of resistance to prevent any accidental sliding when in place is provided for by such limited use. The effect of these pads is to grip or cling to the sides of the chase or furniture when the quoins are driven up, and thus prevent any accidental displacement, yetthey yield sufficiently to enable the quoius to be forced upon each other, or 1o be separated by unlocking without destroying the adhesion of the pads to the quoin. The head 9 of each quoin also is recessed for furnishing an additional hold for the slotted lugs e e, and to prevent their slipping off when the lever-key, Fig. '7,is applied for locking up the form.

E is a sliding rack-bar, the cogs of which articulate with those of the segmental end of the lever F, which turns upon a pivot or rivet, G. The rack-bar E and the segmental end of the lever F operate within a suitable framework or guide, H, which holds the pivot of the lever, and is slotted at h on its underside in a desired direction.

to allow passage of a slotted lug, e, on the l under side of the rack-bar, and to permit the approach of the lugs e e to each other when l locking up the form. It is also furnished with E a stationary slotted lug, e, at a convenient dis- I tance from the end of such sloth, to prevent the quoins from being forced too far upon each other when looking up.

The rack bar E is provided with a slotted E lug, e, on its under side and near its outer extremity. The inner sides of both lugs, e e, are slotted at '6 2', so as to hold upon the head 4 of each quoin in forcing them together when the rack-bar is moved by the act-ion of the j lever in locking-up, and such lugs project sufficiently to grip, respectively, into the spaces d cl when the form is to be unlocked.

The manner of operating the quoins and 1 lever-key is as follows: The quoins are placed in pairs face to face in the space between the chase and the furniture, so that their bases bear, respectively, upon the former and the latter. The lever-key is then applied vertically by placing the lugs in the spaces d (1 provided for them near the head of each quoin, or at the extreme ends 9 g of the heads, and pressure is exerted upon the lever, which causes the rack-bar to move and the lug e, which it carries, to approach the stationary lug 6 upon the under surface of the guide H, thereby sliding the quoins upon each other and increasing the distance between the furniture and the chase. They are rigidly held in place and prevented from separating by means of the compressible or elastic grip f set in or upon the base, as it yields suthciently to enable the quoins to be slid upon each other by force, but by reason of its projecting slightly when in place offers adequate resistance until force is applied by the lever-key The two parts of my qnoins are duplicates of each other, so that any two may be pa red at will. They are preferably made of inalleable cast-iron. The material I prefer for setting into the base is india-rnbber or afa-bric thereof with an exterior rubber surface, as it does not readily become glazed or coated, so as to lose its tenacity under pressure; but any elastic or compressible substance maybe inserted or caused to adhere to the base which shall offer like resistance to any change from the desired position. My quoins are of such 5 size and weight that they are neither costly, cumbersome, nor inconvenient, nor are they liable to be injured or impaired. i

O I am aware that printers quoins have been constructed with an inclined central rib or feather and with a shortgroove near the head, and provided with parallel rack-bars on each side of such central rib or feather, as in Patent No. 201,820, issued to Henry A. Hempel,

June 11, 1878, and I therefore disclaim such 7 guiding and retaining grooves extending longitudinally from such rib toward the thinner extremities of such duplicates.

2. Printers duplicate wide-bearing quoins whose inclined meeting faces are each provided with a narrow longitudinal guide-rib adjacent to their heads, and a corresponding longitudinal guiding and retaining groove extending from such rib toward the other extremity, each head being provided with a recessed hold for a lever-key.

3. A printers quoin provided with a basegrip consisting of a compressible elastic projecting pad set into or adherent upon a quoin and partially covering its base, substantially as described.

at. In a prin ters key for locking up recessed duplicate quoins, a lever carrying a se mental cogged periphery at one end articulating with a correspondingly-cogged longitudinal rack-bar, carrying on its under side a lug working in a slotted guide-frame, also provided with a corresponding lug on its under side, and all substantially constructed in the manner and for the purposes described.

In a locking-up device for securing printers forms, the combination of mutually guided and guiding qnoin parts acting by means of short head-ribs and long longitudinal mutuallyguiding grooves extending toward their other extremity upon their meeting faces, together with a lever-key adapted to locking and unlocking the same by means of articulating lugs upon such key and receiving-recesses upon such qnoins, all substantially as described.

\Vitnesses:

A. E. ASHFIELD, J. NELsoN LUCKEY.

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