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Publication numberUS947866 A
Publication typeGrant
Publication dateFeb 1, 1910
Filing dateApr 19, 1909
Priority dateApr 19, 1909
Publication numberUS 947866 A, US 947866A, US-A-947866, US947866 A, US947866A
InventorsJohn W H Taylor
Original AssigneeJohn W H Taylor
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 947866 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)


LOOK. APPLIoA'rIox FILED APB. 19. laos* Patented Feb. 1, 1910.


JOHN w. n. TAYLOR, or' Pomona, camronnm.

Loc/x. A

Specification of Letten Patent.

Patented Feb. 1, 1910.4

To all whom 'it may cc/werfnr 1 Be it known that l, JOHN W. H. TAYLOR, a citizen `of theUnited States, residing at Pomona, in the county of Los Angeles, State of California, have invented certain. newl and useful Improvements in Locks; and I do hereby declare the following to be a full,

clear, and exact description of the inventiom' such as will enable ot 1ers skilled in the .art to which it appcrtains to make and use the same.

This invention relates to locks and more especiall to a lock designed tol bev operated without eys or knobs but solely by the use of electricity.

One object of the invention is to provide an improved general construction for locks of this character.

A second object of the invention is to provide a means whereby the magnet used for actuatinfr the lock will at thcsame time` act as a gui c for the bolt. 1

'ith the above and other objects` in view the invention consists in general of a casing wherein is held a pair ot electro-magliets, a holt arranged in a novel manner and an armature supported on said holt.

The invention further consists in certain novi-l detailsl of construction and combinationsI of parts hereinafter fully described, illustrated in the accompanying dfiwing, aud spcciticallysot' forth in the claims. i

lu the accompanying drawing, like characters of reference indirette likei'ialts in the' view, and the figure is a section through a door and the lock casinar showing the Work-l iup,` mechanism of a lock constructed in nccordancc with this invention. c,

The numeral l() indicates the loaf of a door whcreon the lock is located and the numeral 1l thc door jamb.

At 12 is shown a lock casingr wherein is held'ii pair of electro-magnets 13 connected and attached to a bar 14 of soft iron so that a complete U magnet is formed. The bar of soft iron 14 is attached to the magnet cores by means of screws 1? and to the side of the casing hy screws 16. The bar 14 thus scri-'cs to support the magnetsl and hold them firmly attached to the casing. The bar 14 is further provided with a centrally disposed aperture 1G and moving through this aperturc is the stem 17 of a locking holt provided at its forward end with the usual beveled surface 18 adapted to be received in a keeper l!) secured within thc jamb 11.Y

the bar 14 and this collar serves to limitthe'forward movement of the stem. The macnetcores are indicated at 23' and each of 'these cores is provided with a non-magnetic stop 24 of the usual construction to prevent the` armature 20 adhering to the cores 23 after the current has been turned otl". Surrounding the stem 17 is a spiral spring 25 normally forcingr the bolt outward.

.At 26 is indicated a. battery and this battery is connected to the magnet coils by means of a wire 27 leading from one end of the battery .and to a ush button 28 by means of a wire 29 lea ing from the other pole of the battery. A wire 30 connects the other contact of the push button with the magnet coils. The push button 28 is located in any convenient lace so that it cannot readily be reached liy a person attempting to open the door surreptitiously.

In the operation of the device when it is desired to Open the door it is simply necessary to close the circuit by pushing on the push button. The magnets will then be energized and attract the armature 20 which will pull the bolt back and release the end 18 from the keeper 19 thus permitting the door to o en. As soqn as the ush button is releas the spring 25 forces die bolt outward andthe door may be shut in the ordjnary manner.

It is obvious that this invention may also apply to safes and vaults and that a plurality'of devices of this kind may be employed either Operated by different push buttons located atv different places or so arranged in series that. all of the circuits are closed simultaneonsly.

There has thus been provided a simple and eicient device of tlie kind described and for the pur ose. speciied.'

Having t us described the invention, what is claimed as new, is:-

1. In a lock, a casing, a pair of electromagnets held therein, a paramanetic bar connected to the cores of said magnets and provided with a. centrally disposed guide aperture, a spring-pressed bolt held to move in said guidel aperture and adapted to project from the casing, an armature rigidly secured to said bolt and means to complete an electric circuit through said magnets.

2. In a lock, a` casing, a pair of electromagnets held therein, a paramagnetic bar connected to the cores of said magnets and provided with a centrally disposed guide aperture, a4 spring pressed bolt held to move in said guide aperture and adapted to project from the casing, an armature rigidly secured to said bolt, and means to complete an electric circuit through said magnets, said meanscomprising a generator, a push button, and tv ires connctlng the magnets, generator and push button.

3. In a lock,l a casing, a pair of electromagnets therein, a paramaguetic bar rigidly attached to the cores of said magnets and secured to the side of said casing, said paramagnetic bar being provided with a centrally dis osed guide aperture a spring pressed boiiJ held to move in said guide aperture and adapted to project from the casing, an armature ri idly secured to said bolt, and means to comp ete an electric circuit through said magnets said means comprising a, generator, a pus button, and wires connecting the magnets, generator and ush button.

In testimony whereof, I a x my signature, in presence of two witnesses.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2691544 *Dec 1, 1951Oct 12, 1954Lawrence M ParkerElectrical means for actuating latches of automobile doors
US4917419 *Aug 22, 1988Apr 17, 1990Mora Jr Saturnino FElectromechanical door lock system
US5360243 *May 24, 1993Nov 1, 1994Sydney HirshChild safety lock apparatus
US5911460 *Feb 25, 1997Jun 15, 1999Georgia Tech Research Corp.Jamb pocket latch bolt assembly release apparatus
Cooperative ClassificationE05B47/0002