US68540A - William welch - Google Patents

Description

7%.5365565 @gebr @AM i@ A @atten gta-tes letnt @ffice WILLIAM WELCH, o F BRIDGEPCRT, CONNECTICUT.

I Letters Patent No. 08,540, dated September 3, 1867,

@in Segnale nfetnh tu it these @aan taient mit making @mit nf tigt time.

'IO ALL WHOM IT MAY CONCERN:

Be it known that I, WILLIAM WELCH, ofBridgeport, in the county of FairelcL-ainl State ot` Connecticut, have invented a new and useful improvement in Locking Devicefor Gates in Presses.; and I do hereby declare thatl the following is a full, clear, andexact description thereof, which will enable others skilled in thc art to make and use the same, reference 'being had to the accompanying drawings, in which- Figure 1 represents an inside or back view, partly in section, of my invention.

Figure 2 is a vertical section of the same, taken on the line a: a?, g. 1.

Figure?) is a vertical section ofthe same, taken on the line y y, iig. 1

Figure4 is a back view of the Covering-plate.

vSimilar letters of reference indicate like parts.

This invention ,relates to an improvement in the manner of securing thecap for covering thcsliding-box in the gate of a power-press to the gate; said sliding-box being the bearing for the eccentric shaft, whereby the gate is operated.

forming part of this specification,

Mylinvention consists in securing revolving hooks to the said vcovering-plate, which catch into recesses provided in the gate, so that thereby the plate can be quickly secured to or removed from the front of the gate. In combination with the above device for securing the covering-plate, I have also improved the sliding-box, which'vis made in two halves, folthe purpose of' more easily getting at the bearing of the shaft; Heretoi'ore the covering-plates were always secured to the gate by means of four screws, and could therefore not be removed or attached with sufficient facility. i

A represents the gate of a power-press. B is the sliding-box and bearing for the eccentric shaft by which the gate is moved up and down. The box B is arranged in a slot in the gate as usual. The box 'B is made of two pieces, a and Z2, the lower one, a, having two pins c C, which fit into corresponding holes in the upper half b.

The slot inthe gate is wider than the box B is high, so thatbctwecn the upper or lower edge (or both) lof theA box andthe corresponding sides of the slot, a space'is left, into which' plates, cZ d, of brass or other suitable metal are placed. When it is dcsiredito open the box B it is only necessary to remove the plates d, or sonic of them, when the cover b can be taken ofi', or the whole box removed, as may be desired. C is the plate which covers the slot in the gate. Through the saine are fitted two or more pins c, which are swivelled into it, so that they cannot be pulled out of the plate, but can revolve therein. 0n their outer ends these pins have handles of vsuitable kind. Ontheir inner ends they are provided each with a projecting pin or crank f. These pins e, when the plate C is secured to the gate, iit into recesses g, which are formed in the gate A in'sueh a manner that when applied the pins are turned so that the cranks f tit into the recesses, and thus lock the plate to the gate. rIhe shape and form of these pins and recesses are better understood from g. 3, in which the plate C is represented as bcingrenioved from thevgate. 'lo prevent the pins being turned too far in any one direction, the shoulders L, iin their-,inner or outer sides or plates, which may otherwise b c attached to them, are provided with segmental slots or recesses cut into the 'rinis, (see lig. 4,) through which pins i', which are fixed to the plate C, fit. The pins c can thus only bc turned until the ends of the slots in 71. strike against the'pins z'.

Having thus described iny invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The plate C, secured to. the gate oi' a power-press, by means of the pins e, having cranksf, and slotted plates L, as herein shown anddescribed.

2. The box I3, when made of two pieces, in combination with thel plates d, for the purpose ot" permitting the easy removal of the box, substantially as herein shown and described;

3. The arrangement of theremovablcbox B between the plates d, and pins e,- on the plate C, as herein set forth for the purpose specified. I

WILLIAM WELCH. Witnesses MATTHEW Dranoxn,

JAMES Booms.

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