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Publication numberUS611941 A
Publication typeGrant
Publication dateOct 4, 1898
Filing dateSep 19, 1896
Publication numberUS 611941 A, US 611941A, US-A-611941, US611941 A, US611941A
InventorsElizabeth Robertson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 611941 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

vNo. 6 l.

Patented oct. 4, |898.




SPECIFICATION formingpart of Letters Patent No. 611,941, dated October 4, 1898.

Application filed September 19,1896. Serial No. 606,424. (No model.)

To aZZwY/om it may concern.-

Beit known that I, MARY ELIZABETH RoB- ERTsoN, a citizen of the United States, residing at Charlottesville, in the county of Albemarle and State of Virginia, have invented certain new and useful Improvements in Bolt- Locks; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to locking-bolts.

My object is to provide an improved and cheap as well as simple locking-bolt which can be quickly and easily applied to any door, window, or other closure, and can be placed in anypreferred position, being always adapted to operate in amost satisfactory manner.

Having this object in view, my invention consists of a locking-bolt of novel and irnproved construction, as will appear more fully in the following description, appended claim, and accompanying drawings, in which- Figure 1 is a perspective view showing the invention applied to a door; Fig. 2, a detail view of the bolt and locking-handle; Fig. 3, a detail view of the cat ch or key, and Fig. 4 a like view of that portion of the bolt-keeper in which the key or catch slides.

The numeral 1 designates a section of an ordinary door,while 2 represents a portion of the door-casing.

The numeral 3 represents the bolt casing or holder,which is provided with'feet 4, through which fastening devices may be passed to secure said holder to the door. In the outer face of the holder there is cut a slot 5,which terminates at its opposite end in back cuts 6 and 7.

It will be seen that the holder or bolt-casing is open at both ends, so that the bolt'itself, which will now be described, can be operated in either direction.

The numeral S designates the bolt or slide, which is adapted to work in the holder, being provided with upper and lower notches or cuts 9 at one end and similar notches 10 at the other end.

The numeral 11 designates the bolt-handle, which is suitably secured to the bolt and is provided with two cuts or notches 12 and 13, thereby providing a narrow neck 14, so that when the handle is at one end of the slot 5 the neck 14 will drop in one of the back cuts and the b olt be locked. The holder is wider than the bolt to permit of the latter being slid laterally, or,`as shown in the drawings, up and down. This permits the locking action just described. Owing to the fact that upper and lower back cuts are provided, the position of the holder can be reversed, and hence the device can be placed in any position and yet be operated. A

The numeral 15 designates my improved keeper,which is adapted to receive the projected end of the bolt, said keeper being provided with feet 16,which are suitably secured to the door-casing. Said keeper is open at both ends. At the top and bottom of the keeper there are formed the slots 17 and 18, which terminate at their outer ends in double notches or back cuts 19 and 20, respectively. The numeral 21 designates my improved key or catch. `Said catch is provided with a reduced neck 22 and a small head 23. The neck is provided with a back cut 24.

Ordinarily the neck is located in one of thel double notches 19 or 20, as the case may be,`

and the notch 24 is provided, so that the key or catch can be turned up to allow said neck to be thus received. By this means the catch or key is held in position when not in use. Vhen it is desired to use it, however, it is turned so that the neck is brought edgewise into the slot, and the key will then drop and allow the head 23 to enter one of the notches in the locking-bolt, so that the door will be securely locked.

There are many slight changes of construction that might be resorted to bya skilled mechanic in carrying out my ideas without detracting from any of the advantages of the invention, and hence it is to be understood that I do not limit myself to the precise construction as shown in the'drawings and described heretofore, but consider that I am entitled to all those variations which properly come within the spirit and scope of the invention.

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

In a locking-bolt, the combination with a, casing or holder, of a bolt movable therein, a 5 keeper for said bolt which is provided with a slot and a, back cut, and a key or catch having zt head adapted for engagement with the bolt, areduced neck, and a notch made in said neck, the neck being Sldable in the slot and the notch permitting the key to be turned Io and received in the back cut.

In testimony whereof I have signed this `specicztton in the presence of two subscribing Witnesses.



Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2648106 *Sep 9, 1949Aug 11, 1953Shater Edward PSwinging sash with a weatherproofing latch
US4095828 *Feb 14, 1977Jun 20, 1978Eldon Dwayne EastLocking assembly
US5315850 *Mar 22, 1993May 31, 1994National Manufacturing CompanySurface mounted slide bolt
US5562315 *Feb 6, 1995Oct 8, 1996Sales; Charles R.Door retainer for pre-hung door
US6301941 *Jan 21, 2000Oct 16, 2001Morgan L. NicholsfigueiredoDead-bolt locking device
Cooperative ClassificationE05B63/128