US103938A - Improvement in sash-fastening - Google Patents

Description

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Letters Patent N 103,938, dated une 7, lSl'O.

- IMPROVEMENT :N sAsH-FASTENING.

The Schedule referred to in these Letters Patent and making part ofthe same.

.To all whom it may concern Be it known that we, WILLIAM B. SNYDER and ROBERT HUBBARD, both of Bridgeport, iu the county of Fairfield and State of Connecticut, have invented a new and use i'ul Improvement in Sash-Fastenings,'of which the following'is a specification.

Our invention relates to'that class of sash-fastenings in which a horizontally-swinging latch, secured to therlower bar of the upper sash, engages with-a segment rim or anged plate on the upper bar ofthe lower sash andi V lhe'improvement herein claimed consists in the combination of the swinging latch andthe segment- `shaped catch with the peculiar spring, hereinafter de'- scribcd, to hold the latch in its locked position. y

In the accompanying drawingu Figure 1 represents a. plan or top view of our improved fastener; Y Figure 2, a vertical transverse section through the same, at the line x x of fig. l; and

Figure 3, a view of thespring catch detached.

In `order to carry out our invention, we secureav box, A, to one sash of the window. l

The latch B swings horizontally on a pivot, b, in the box.

The rear ends of the latch are square, and bear against a spring, a', in the box, to hold vthe latch in any position in which it may be set. These pa-rts of the device are old.

A segment rib or anged catch-plate,.G, of the .usual form, is secured to the other sash.

A plate-spring, D, extends across the curve of this plate, and is securely held by being sprung into scelgets in the plate.- l

A rib, c, on the lower side of the spring, plays in a guide, c', in the plate,.\vhich keeps the spring from moving endwise while allowing itto move laterally.

The spring, however, can be removed by bending it inward until the rib c enters the lcng part oi the notch shown iu iig. l, when it can be moved endwise far enough to slipone end 0f the spring out ot' its socket.

A notch, (l, in the upper side ofthe spring, receives a stud or projection, e, ou the latch b, when locked, and t-husholds it securely, preventing the latch' from being unfastened until the spring is pressed out far enough for the latch to clear the notch.

We have described our improvement as a windowfastening, but it obviously is applicablerto extension tables and other analogous uses.

XVe do not broadly claim the combination of anyspring catch with anfastening of this kind. v

XVe claim as our iuventionl The construction and relative arrangement hereinbefore set fort-h, of t-lic horizontally-swinging lat-chr,

'the segment-shaped eatchfplate, and the notched horizontally-moving plate-spring inserted vertically into the catch-plate, for vthe purpose described. y

In testimony whereof we vhereunto 'subscribed our names.

' WILLIAM B. SNYDER.

Witnesses zv ROBERT HUBB'ARD.

H. It. LAcEY, F. HURD.

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