US133050A - Improvement in window-sash fasteners - Google Patents

Description

C. PARTELLO.

Improvement in Window-Sash Fasteners. No. 133,050. Pate nted Nov.12,1872.

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CHARLES PARTELLQ, OF WATEBTOWN, NEW YORK.

IMPROVEMENT IN WlNDOW-SASH FASTENERS.

Specificationforming part of Letters Patent No. 133,050, dated November 12, 1872.

To all whom it may concern:

Be it known that I, CHARLES PARTELLO, of Watertown, in the county of Jefferson and State of New York, have invented certain new and useful Improvements in Sash-Fastenin gs and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawing forming part of this specification, in whichv Figure 1 is a perspective view of a windowsash, showing my improvements applied to the fastening; Fig. 2 is a side elevation of the same; and Fig. 3 is an edge view of the slot ted guide and thumb-plate detached from the sash.

Similar letters of reference in the accompanying drawing indicate the same parts.

My invention relates to that class of sashfastenings composed of a flat spring secured at one end in the edge of the sash, so as to hold a short stud upon its opposite end within a series of recesses in the window-casing.

' One end of a bent arm attached to the spring projects through a slot in the face of the sash, and forms a finger-piece which is grasped by the operator to withdraw the stud from the rec'esses and raise the sash. A faceplate of metal, slotted for the passage of the fingerpiece, is sometimes affixed to the sash to prevent the finger-piece from wearing the wood. Inasmuch as the finger-piece is necessarily slight, it affords but a smallpoint to be grasped by the fingers, and is liable to be broken upon a heavy sash or upon one that sticks or binds in its casing. The. object of my invention is to afford a protector for the finger-piece, and at the same time an additiona l bearing or thumb-piece for liftingthe sash? To this end it consists in constructing the face-plate with a diagonal thumb-piece at right angles, or nearly so, to the general direction of the slot, so that the operator, grasping the finger-piece and thumb-piece, shall press the former upward against the latter to withdraw the locking-stud and raise the sash. By this means the strain upon the fin ger-piece is transferredto the thumb-piece, and the di a gonal arrangement of the latter affords a strong wide purchase for raising the sash. A very slight linger-piece may therefore be used, sufficient only to operate the spring.

In the accompanying drawing, A is the window-sash; B, the flat spring secured at one end within the edge of the same, and carrying the locking-stud O at its lower end. D is the bent lever attached to .the spring at or near its free end, projecting through a slot in the face of the sash, so as to form a fingerpiece, E, as shown. These parts constitute the ordinary sash-fastening, and are not, there fore, of my invention. F is the metallic faceplate, cast with a wide diagonal thumb-piece, G, and with a curved slot, H, under the thumbpiece throughwhich the finger-piece E projects. right angles, or nearly so, to the thumb-piece, and its upper end terminates at the lower side of the latter.

To unfasten and raise the window the opcrator grasps the pieces E G with the thumb and finger and pushes the fin ger-piece upward against the thumb-piece, which therefore sustains the whole weight of the sash while being raised, and relieves the finger-piece of all strain.

Having thus described my invention, what I claim is- The metallic face-plate F, secured to the sash, and constructed with the diagonal thumbpiece E and slot H immediately beneath the thumb-piece, in combination with the bent arm D E and the spring-fastening B 0, substantially as described, for the purpose specified.

CHARLES PARTELLO.

Witnesses:

MARTlN V. Krr'rs, J NO. L. BAKER.

The general direction of the slot is at

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