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Publication numberUS1326554 A
Publication typeGrant
Publication dateDec 30, 1919
Filing dateNov 29, 1918
Priority dateNov 29, 1918
Publication numberUS 1326554 A, US 1326554A, US-A-1326554, US1326554 A, US1326554A
InventorsJohn Cail Watson
Original AssigneeJohn Cail Watson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Combination latch-lock and bolt.
US 1326554 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)



hfoenced Dec. 30,1919.




Application filed. November 2-9, 193.8.

To all whom it may concern:

Be it known that I, Joi-rN GAIL WATSON, a subject of the King of Great Britain, residing at No. 26 Alexander Parade, Clifton Hill, Victoria, Australia, have invented certain new and useful Improvements in Combination Latch-Locks and Bolts, of which the following is a specification.

This invention has been devised to provide improvements in the design and working of latch locks by embodying with such a contrivance, slide bolt, the latter being freely usable in an unlocked condition, but lockable at any time by a. slight movement of the hand.

In order that my invention may be the more easily understood, reference will be made to the accompanying sheet of drawings, in which Figure 1 is a view of the combination latch lock and bolt affixed in position on a gate, the bolt being free to be raised by the latch arm.

Fig. 2 is a similar view of Fig. 1 with the exception that the bolt hereinafter described is in a locked position, so preventing the gate being opened.

Figs. 3 and 4 illustrate details hereinafter to be referred to.

In a combination lock such as I have above referred to, I employ a broad longitudinal plate. a, which, for the sake of illus tration, but not in any way to limit the size I may use, is about 6 in length by about 2 in depth and composed of metal plate of about 3/16 in thickness. he ends of such plate are returned at a right angle to the front or bolt side of such plate, the latter having countersunk perforations at each corner, through which screws 7) may pass to hold the plate to the woodwork c of the gate or door.

In the returned ends, respectively (Z, d, are perforations c, e, the former being curved. and the latter being elongated or oval. The end (3 is preferably bent parallel, the bent end 6 being secured by screws 6 to the end face of the. gate or door, the perforations respectively being sized to permit the operation therein of a bolt 7. The latter is formed of a longitudinal round bar of preferably about a ii in diameter and provided in its length, within the re.- turned plate, with riveted stud g, (see Fig. piece, against the bolt being drawn out through the perforation e.

Specification of Letters Patent.

Patented Dec. 30, 1919.

Serial No. 264,570.

The end it of the bolt is U-shaped, the portion 7L being at acting as a limitation stopper against the end (Z so regulating the forward movementand latching position of the bolt f. The width of the flat portion 7: and space 71- equals the length of the forward or rearward movement of the bolt f when engaging or disengaging the slot 0 for looking or unlocking purposes.

In the returned plate (Z a control gap 1 is cut out, so that the upwardly returned half of the bolt end may slide therein over the lower portion of the slotted end sup porting plate, shown by dotted lines in Fig. 2, thus forming a lock against movement of the bolt f either backward or forward.

In the slotted end plate (Z the upper portions or bifurcations afforded by the slot are provided with perforations j so that a padlock (not shown) may be locked through either of such members to prevent the bolt 7' from being withdrawn when it is desired that the gate or door shall be locked against ingress.

[Lin opening 70 is cut through the back plate of a sufficient width to permit a curved latch arm A1 to pass in order that its clowndly curved end may operate underneath, n lift the bolt 7" to cause the latter to rock upwardly or downwardly as the exterior end f the latch is operated by th finger and thumb of the person desiring to enter the gate or door.

A hinged plate k (see Fig. 4:) is made in dressing out the slot, by so shearing the plate that the pressed out portion points outwardly for a sufficient distance to enable a'pin m, to pass through same and the latch arm is to form a pivot on which the latch arm 71:.

ay rock. It will thus be seen that onmoving the latch arm 70 downward from the outside of the gate, the bolt f will lift to an inclined angle from the horizontal, the elongated or oval slot 6 permitting such bolt end to lift so as to clear itself from its hasp. This latter is composed of a bent metal plate a, the front portion being about two inches in depth by about one inch and half in width, and having both ends returned to the front for an extra inch.

The hasp a is integral with the keeper place it secured to the right hand gate post by screws of. The hasp a has a slot a to conveniently receive the bolt, and the right end of the plate is bent outwardly and is provided with an elongated or oval shaped perforation 0 in the vertigal position to permit the passing through of, and the upward rocking of the bolt f therein.

In practice when the appliance is being used as a latch the portion h at the end of the bolt f is outside or to the left of the bent portion cl of the back plate a, (see Fig. 1), the bolt lying in the hasp a. When the finger operates the latch arm is and pushes the door inwardly, the bolt f rises from its latch and slides down to the curved front of the hasp n. When .the gate or door is slammed for closing, the bolt f rises over a the gap.

the curved front of the hasp and falls into the slot 91 and is supported in that position.

When it is desired to lock the bolt f against intrusion, the returned end it of the bolt is lifted up to the horizontal and is pushed along so that the returned end hooks over the bifurcated plate d. The other end of the bolt f is thus sent into the elongated perforation 0 in the bent plate 0, the end it is then allowed to fall to a vertical position as shown in Fig. 2, the padlock may then be secured through the lower perforation of the perforations j in the returned end of the plate (Z.

The whole of the parts hereinbefore mentioned are preferably prepared from wrought metal steel, cast malleable or the like material.

I claim:

1. A combination latch-lock and bolt, including a pair of plates provided with bent ends having slots therein, a bolt movable through said slots and having a U-shaped end providing a flat portion and leaving a space, the flat portion acting as a limitation stopper to the bolt for latching purposes 1,326,55&

and acting in conjunction with the space for controlling the forward and rearward movement of the bolt to engage and disengage the slot in the outermost end piece of one of the plates.

2. A combination latch-lock and bolt, including supporting and keeper plates provided with bent ends having slots therein, one of the bent ends of the supporting plate being also provided with a horizontally dis posed gap, a bolt slidable in the bent ends of the plates and designed with a flat portion at one end for passing through 8. A combination latch-lock and bolt, comprising a supporting plate provided with bent ends, one of the bent ends having an opening and a gap therein and also provided above and below the gap with padlock receiving perforations, the other bent end having a slot therein, a bolt slidable through the bent ends of the supporting plate, a keeper plate designed so that the bolt may be latched or locked therein, a rocking latch arm on the supporting plate for operating the bolt when the bolt isin a latched position, a U-shaped portion at one end of the bolt having'a flattened terminal for passing through the gap in the bent end to facilitate the arrangement of the U- shaped portion in straddled relation with the said bent end and to hold the bolt in a locked position in the keeper.

In testimony whereof I afiiX my signature in the presence of two witnesses.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2589637 *Jul 11, 1947Mar 18, 1952Sorenson AlexDoor latch
US2631877 *Jul 28, 1950Mar 17, 1953Mark AinsworthLockable slide bolt assembly for doors and the like
US2708478 *Jul 17, 1952May 17, 1955Frantz Mfg CoFull open sectional door latch device
US3266831 *Feb 24, 1965Aug 16, 1966Nat Mfg CoAutomatic latch
US3907344 *Mar 25, 1974Sep 23, 1975Lawrence BrothersAdjustable ornamental gate latch
US4060266 *Jun 1, 1976Nov 29, 1977Leigh Products, Inc.Surface bolt
US4062575 *Dec 8, 1975Dec 13, 1977Pti - DolcoGate latch locking device
US4387916 *Jun 26, 1980Jun 14, 1983Lening George OGate latch assembly
US4643469 *Sep 3, 1985Feb 17, 1987National Manufacturing Co.Gate latch
US4676534 *Jul 16, 1986Jun 30, 1987Perfection Machine & Tool WorksLock assembly
US4678212 *Mar 3, 1986Jul 7, 1987Richard RubioTailgate latch mechanism
US4690440 *Dec 30, 1985Sep 1, 1987Rogers Gerald HStrengthened latch and striker bar structure for fence gates
US4823571 *Aug 23, 1988Apr 25, 1989Gara James OCam lock and brace assembly
US5427422 *Sep 24, 1993Jun 27, 1995Madlener; JosefDoor security system
US5626375 *Dec 12, 1995May 6, 1997Plett; HenryGate latch mechanism
US5782507 *Apr 15, 1997Jul 21, 1998Hardee; Carl B.Gate latch with latching means
US5799990 *Apr 15, 1997Sep 1, 1998Hardee; Carl B.Reversible gate latch with locking means
US6679530 *Jun 14, 2002Jan 20, 2004Michael KrynskiCompensating gate latch assembly
US6808212May 2, 2003Oct 26, 2004Carl B. HardeeReversible security gate latch
US7021678 *Oct 7, 2003Apr 4, 2006Raoult Philippe PFour position gate latch assembly
U.S. Classification292/236, 292/67, 292/66, 292/205, 292/44
Cooperative ClassificationE05C3/12