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Publication numberUS1722621 A
Publication typeGrant
Publication dateJul 30, 1929
Filing dateSep 23, 1927
Priority dateSep 23, 1927
Publication numberUS 1722621 A, US 1722621A, US-A-1722621, US1722621 A, US1722621A
InventorsBennett George T
Original AssigneeBennett George T
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Cupboard-door latch
US 1722621 A
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Description  (OCR text may contain errors)

y 30, 9 G. T. BENNETT I 1,722,521

CUPBOARD DOOR LATCH Filed Sept. 23, 1927 gwomto a Patented July 3%, 1929.

area

CUPBOARD-DOOR LATCH.

Application filed $epcember 23, 1927. Serial No. 221,4l3.

This invention relates to door latches and more especially to cupboard or cabinet door latches.

One object is to provide a simple, efficient and practical latch which may be readily attached to any door of the kind named.

Another object is to provide a door latch having a dual means of manipulation, in the form of a knob and a chain.

In the drawing Figure'l is a longitudinal vertical section;

Figure 2 is a vertical transverse section on the line 22 of Figure l; 4

Figure 3 is a longitudinal horizontal section on the line 3-3 of Figure l;

Figure 4 is an enlarged detail of the chain pulley and bolt operating cam.

The invention includes a casing 1 having the usual bolt aperture 2 at the frontal end, and the spaced fork apertures 3 at the rear end. The forked latch bolt t is slidably mounted within the casing l with the bolt head 5 disposed in the aperture 2 and the forks 16 in the apertures 3. Cam lugs 12 are formed upon the inner sides of the forks 5. The casing 1 is also provided with. the shaft aperture 6 and shaft socket 7 transversely aligned through the casing. An operating shaft or stem 8 is ournaledthrough the aperture 6, between the forks 16, and has its inner end seated within the socket 7, while the outer end carries a knob 9. A chain pulley l0 and bolt operating cam 11 are rigidly mounted upon the shaft 8 within the casing l, the pulley being disposed adjacent the bolt assembly and the cam within the forks 5 and arranged for alternately bearing upon the lugs 12 upon the rotation of the shaft 8, thus operating the bolt 4 in a well known manner.

A spring13 is secured at 14 to the casing l, with its free end bearing upon a shoulder 15 of the bolt head 5 and thus functions to normally project the bolt head 5 outwardly of the casing 1. A beaded chain 17 is passed over the pulley 10, having its inner end secured to the periphery of the pulley and its outer end passed out through an aperture 18 in the rear end of the casing 1.

In use upon a cupboard or cabinet door,

this latch maybe readily operated either by l the knob in usual form, or by the chain. The latter method would be convenient in case ones hands were greasy from working about a kitchen, or in case the hands were filled with utensils.

Any changes may be made in the assembly, within the scope of the appended claim.

I claim: a

In a cupboard door latch, the combination comprising a housing, a forked bolt slidably mounted in the housing, the forks thereof having cam lugs on their inner sides, the ends of each of the forks being guidably extended through the wall of, the housing and having a stop shoulder adapted to engage the said wall to limit the movement of the bolt, an operating shaft journaled transversely through the casing for operative engagement with said cam lugs, a chain pulley mounted on the operating shaft, and a chain secured to and P passed over the pulley with the free end of the chain passed out through the casing.

In testimony whereof I affix my signature.

GEORGE T. BENNETT.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2725248 *Aug 11, 1952Nov 29, 1955 rimkus
US4691948 *Nov 27, 1985Sep 8, 1987A-Dec, Inc.Fail-secure lock system
US5927114 *May 19, 1997Jul 27, 1999Berry; DanielView limiting enclosure assembly for dial combination locks
Classifications
U.S. Classification292/169.21, 292/171, 292/358
International ClassificationE05C1/00, E05C1/12
Cooperative ClassificationE05C1/12
European ClassificationE05C1/12