US306554A - Geoege tittley - Google Patents

Description

(No MJdel.)

' G. TITTLBY.

l* LATCH. No. 306.554. Patented 0013.14, 1884.

4rrn STATES GEORGE TIITLEY, OF CHICAGO, ILLINOIS, ASSIGNOR TO GARY OALKINS, OF SAME PLACE.

LATCH.

SPECIFICATION forming part of Letters Patent No. 306,554, dated October 14, 1884.

Application filed February 1l, 1884. (NO mmlel.)

T all whom it may concern.-

Beit known that I, GEORGE TITTLEY, reA siding at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Latches, of which the following, in connection with the accompanying drawings, is a specication.

In the drawings, Figure l is a cross-section of a latch embodying my improvements. Fig.

1o 2 is a section in the plane of the line x w of Fig. I, viewed in the direction indicated by 4the arrow there shown. Fig. 3 is aside view of the catch or latch shown detached orin detail; and Fig. 4 is a section in the plane of the I5 line y g/ of Fig. 3, viewed in the direction indicated by the arrow there shown.

Like letters of reference indicate like parts.

This invention relates to that class of doorlatches in which the latch is drawn by means 2o of levers having` their outer ends arranged in proximity to the shanks of stationary knobs; and the object of my invention is to provide improved means for preventing the inner ends of the levers from comingin contact with each other.

A A are the levers referred to. B B are the knob-Shanks, and O O are the knobs. D is the latch or catch.

Heretofore the levers A A have been ful- 3o crumed, so that their outer ends could be pressed toward the shanks with facility, while the knobs respectively were taken hold of for the purpose of opening the door, and the inner ends of the said levers entered a slot in 3 5 the latch or catch D. Vhen so arranged, the inner ends of the said levers, when the levers were allowed to move too freely on their fulerums, were liable to come in contact with each other, and thus impede the proper action of 4o the catch, unless means were provided for separating the inner ends of the levers.

To prevent the inner ends of the levers A A from the contact referred to, I make two slots, a and a', in the catch D. In other words, in the slot for receiving the inner ends of the levers I make a central longitudinal web or light bar, a, so that each lever will thereby be separated from the other, but yet be allowed to move freely in performing its functions. In other respects the latch may be constructed as latches of this vclass have heretofore been made, or in any suitable or well-known Way, permitting the latch or catch D to be drawn by means of levers A A.

It is to be understood that the latch or catch D is thrust out by means of a spring acting on it; but I have not here attempted to show and describe all of the parts of the latch in detail, as such locks have long been well known, and as my present invention relates only to the herein-described means for separating the inner ends ofthe levers. In the example shown the latch is represented as set in a niortise in a door, E, and E F are rose-plates, slotted to permit the vibrations of the levers A A.

Having thus described my invention, what I claimas new, and desire to secure by Letters Patent, is

The combination of t-he latch or catch D, having therein the slots a and a', the levers A A, entering the said slots respectively, and the stationary knob-Shanks, substantially as and for the purposes specied.

In testimony that I claim the foregoing as my own I hereto affix my signaturein presence of 75 two witnesses.

hi GEORGE s TITTLEY.

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