US656011A - Lock. - Google Patents

Description

No. 656,0II. Patented Aug. I4, |900.

' H. G. CARLETON.

LOCK. y

(Applicatinn fled Nov. 15l 1899.) (No Model.)

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. 5 for opening the lock being in this Nmap 'STATES HENRY GUY CARLETON, OF NEIV YORK, N. Y., ASSIGNOR TO THE OARLETON ELECTRIC COMPANY, OF SAME PLACE.

LOCK.

SPECIFICATI'N'orming part of Letters Patent No. 656,011, dated August 14, 1900. Application tiled .November 15,1899. Serial Nox 737,066. (No model.)

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Be it known that l', HENRY GUY CAnLnroN, a citizen of the United States, residing at New York, county of New York, and State ef Newv York, have invented certain new and useful Improvements in Locks, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

1o This invention relates to certain improvements in locks.

In one class of electric locks as now ordinarily constructed the movable part which opens the loch-such, for instance, as the slidx5 ing bolt-is operated by the magnet, the attractive force ofthe magnet being` either exercised directly on the bolt or utilized to actuate certain mechanical agencies which in turn operate the bolt. In another class of 2o electric locks thc magnet is located in the operating connections and serves to tic orsecure together certain parts of the train of connections which extend from the operating device to the bolt or other movable part, the power class applied by hand.v A lock of this type is shown in my Iatent No. 608,321, granted Augustf2, 1898.

In the first class of locks above referred to 3o magnets of very considerable strength and requiring a considerable amount of batterypower-are necessarily employed. In the second class of locks the strength of the magnets and the amount of battery-power is largely reduced; but since the magnet is located in the connections and serves in a way to tie certain parts of the connections together its attractive force is still required to be considerable. Ilurthermorehe circuit-controllingde- 4o .vices ordinarily employed in electric locks are, as a rule, located outside the casi ng of the lock and are operated by agencies independent of the lock-operating mechanism. In opening said locks, therefore, it is necessary to first close the circuit, the circuit then remaining closed until the lock is operated. Ii", A V as may happen, some little time elapses bctween the closing ofthe circuit and the operation of the lock, considerable battery-power 5o is used, and with open-circuit batteries it sometimes happens that the battery becomes ezhausted before the lock is operated.

A further objection to electric locks as now ordinarily constructed. is that they are only provided with one set of operating means and can therefore only be operated through the electrical devices. It', therefore, it happens that there is any break in the circuit connections, or if the electrical devices fail to act for any reason, the lock becomes inoperative and 6o cannot be opened until the electrical connections are rendered operative or the lock` is either picked or taken to pieces.

Itis one of the objects of the present invention to produce an improved lock which shall embody all the advantages of an electric controlling mechanism and in which at the same time the engaging part, which is moved to open the lock,shall be operated entirely by mechanical devices, thereby enabling a large amount 7o of force to be used when necessary to open the lock, and at the same time very little batterypower is required to operate the coutrollin devices. A

A further object of the invention is to cen- 7 5 struct the circuit-closing devices for electric locks in such a way as to cause them to be operated by the means by which the movable engaging part of the lock is moved, thereby conserving the power of the battery employed, 8o as no battery-power is consumed until the lock is actually' operated.

A further object of the invention isto produce an improved lock which shall be provided with a plurality of actuating devices, one of said devices being purely mechanical and the other being electricallycontrolled.

A further object of the invention is to producean improved form of electric controlling mechanism for use in conneetionwith elee- 9o trically-operated locks and other similar de- Vices,

With these and other objects in view the invention consists in certain constructions and in certain parts, improvements, and com- .95 hina-tions, as will be hereinafter more fully described and then pointed out in the claims hereunto appended.

In the accompanying drawings, which form a part of this specification, and in which like foo characters of reference indicate the same parts, Figure 1 is a vertical sectional view illustrating a portion or" a door or other part provided with a lock, the lock being shown in position therein, partly in section and partly in elevation. Fig. 2 is a horizontal section on the line i of Fig. 1. Fig 3 is a diagrammatic View of the circuits employed.

Referring to the drawings, which illustrate a preferred embodiment of the invention, 1 indicates r door or other movable part in which the lock-casing 2 is located. The jamb is indicated at 3, said jamb beingr provided with the ordinary keeper 4.

The bolt mechanism of the lock may be of any usual or desired form. In the present inst-ance it consists ot a sliding bolt 5, said bolt workingin an opening in the lock-casing 2 and in a. supporting `cuide or loop 7. The bolt is held forward. to its duty by the usual spring S. y

When the bolt is the moving part by which the lock is opened, as in the lock shown, it will be provided with suitable means which lare engaged by the operatingr connections when it is to be slid. While these means 'may be of any suitable form, in the present instance the bolt is provided with a project-ion or shoulder 9', said shoulder preferably extending from both sides thereof and being preferably cast in'one piece with the bolt.

The lock shown is` provided with two sets of devices, one of these devices beinga purelymechanical operatingT device and the other beingelectrically controlled. The electricallycontrolled operatingr device may be widely varied in form. in the present instance it consists of a movable member which is in the form of an open orA frame-sliap .d slide 10, the sides of which -are connected at their outer ends by a cross-piece ll. One of the sides of the slide is preferably provided with an extension l2, on which is formed a rack 13, this rack beingpr engaged by an actuating device to be hereinafter described. lVhilc the movable member which operates Athe engaging part is shown asa slide, it is to he understood that it maybe differently constructed, i desired, and that it may be operated by means other than the rack referred to. rlhe slide is supportm'l in the lock-casing in any suitable manner. lt is shown as supported by a bracket lland by a projection l5, the slide itself passing' through an oponing in the bracketl-t and the rack extension 12 moving.;` in a `groove in the projection l5.

The actuating device by which the slide is moved maybe widely varied in construction. In the lock shown the ordina ry knob-spindle 1G, which carries the lt'nob 17, is provided :ith a toothed segmrnl lo and with the usual torsion returning-sming ll. The scgmcntl is so arranged as' to permit a limited movement of the spindhfbcforc its: iccllroome into engagementwith ilu` 'r .-i -zl1l,=. lhc purpose of this ilmif continent wiil be hereinafter er..

The slide 10 may be returned after operation by the segment in any suitable or desired manner. In the lock shown a spring 2O connects with the cross-piece 11 and with a suitable eye 21, secured in the lock-casing.

A controller which is preferably electrically operated is provided, the purpose of this device being to so control the operation of the parts of the loclins to make the movement of the withdrawing'mcchanism effective to operate the movable engaging part ot the lock, which inv the construction shown is the bolt. This controlling device may be widely varied in location, construction, and operal tion, and the term "'controllec7 as used in the specification and claims is to be understood as covering` any device by which the movement of the slide or other witlnirawinj.; mechanism is made effective to withdraw the other engaging part of the lock. ln the loci-z shown the cont-roller operates upon the slide and regulates the amount of its movement; but constructions in which the controller does not operate upon the slide are possible and within the invention. In tho present construction the controller consists of a part 22, which is arranged to move with the slide preferably by being pivoted thereto, the pivot for said controller' beim,r at the point 23. The Said controller in the form shown provided with a hooked end ill: and a cam-face 25. The hooked end of thc controller engages under certain circumstances with a stop 2U, said stop being in the loci: illustrated located behind the bracket 14, and under other circumstances moves over the stop without engaging it. l

The position of the controller is determined by means of a suitably-arranged electromagnet, the coils 27 of which are mounted on a suitable base 2S, thc base bein-f secured in any suitable manner to the loclvcasing 2. The pole-pieces 2f) of the magnet are arranged so as to be just over the path of travel of the pivoted controller 22, and the controller thus forms the armature for said pole-pieces.

From the construction so far described it will be obvious that when the shaft 1G is operated by the knob 17 and the segment 18 engages the rack-teeth 13 the slide l() will be drawn back. It' nowa circnitbc established through the magnet, the controller 22 will be held up in the position shown in Fig. 1. The slide lO can therefore be drawn back, so that ils connecting-piece l1 strikes the projection .fl on the bolt and causes the bolt to move back with the slide. If, however, a circuit is not established through the magnet, as' soon as the slide moves far enough so as to draw the hooked end :2l of the conlrolhir off the bracket 14s the controller will drop by gravity, and its hooked end will engage the stop 2G. 'lhc :,top 2o' is so located as to be engaged by the controller before thel cross-bar 1l reaches the position where it engages the projection i). As soon therefore as the hooker". end 2l of the controller engages IOC- IIO

the-stop 26 the further movement of the slide is checked and the boltcannot be drawn back.

While the armature-controller 22 may, if desired, be allowed to come in contact with the pole-pieces of the magnet, the construction will preferably be arranged so as to prevent any actual contact between the armature-controller and the pole-pieces, thereby reducing the friction and the amount of power necessary to draw back the slide. In order to effect this function, the construction will preferably embody a stop-arm 30, carrying a friction-roller 31, which is so located as to j ust prevent the armature when the magnet is energized from coming against the pole-pieces.

While the circuit-controlling devices for the magnet-circuit may be located. in any suitable place and operated in any suitable manner, they are preferably arranged inside the lock and are operated by the actuating mechanism of the lock. To this end a spring 32 is provided, said spring forming oneterminal of the magnet-circuit. In the construction shown this spring is mounted on a suitable insulating-block 33. It may, however, be arranged and mounted in any suitable or desired manner. The spring 32 lies in the path of a circuit-closing projection 34, said projection bein-g preferably carried by the knob-shaft 16 and being segmental in form.

It will of course be understood that when a set of circuit-controlling devices such as have been described is located inside the lock the circuit will be provided with a second set of controlling devices located at another point. This second set of circuit-controllin g devices may be of any suitable form and may be located in the building or apartment in which the lock is located, or, if desired, they may be in the door itself. In case they are located in the door itself these circuit-controlling devices will preferably be of the construction shown in my pending application, Serial No. 731,391, filed September 23, 1.899. A full description of these circuit-controllin g devices is unnecessary for the purpose of this application. It may be said, however, that in general they consist of a key-operated barrel', which isy indicated at 35, said barrel carrying a circuitclosing projection 3 6, which coperates with a terminal 37. W hen the barrel is turned by the key, the projection 36 will contact with the terminal 37 and the circuit will be closed. The closing of the circuit at this point having been effected either by the devices which have just been described or by any other suitable devices, such as a switch or button, when the shaft 16 is turned by means of the knob 17, the segmental circuit-closing projection 34 strikes the terminal spring 32. This closes the circuit through the magnet. The further rotation of the shaft 16 brings the segment 18into engagement with the rack 13 and draws back the slide 10, the magnet operating to hold the controller 22 in inoperative position, as has been before described.

By this arrangement of circuit-controlling devicesl no battery-power is consumed until the lock is actually operated.

As khas been before stated, a second set of devices is provided for operating the lock. While this set of devices may be widely varied in construction, in the lock shown they consist of a slide 38, which is supported in the lock-casing in any suitable manner, as by guides 39, and is provided with an upturned projection 38. The slide 38 is provided with rack-teeth 40, which are engaged by a segment 41,- carried on a spindle 42, the said spindle being provided with a knob 43. This knob 43 will be preferably located inside the room or building in which the lock is placed. The occupant of the room or building will by means of this device be able to operate the lock entirely independent of the electric-controlled device hereinbefore described.

Any suitable arrangement of circuitsY may be employed for energizing the magnet. suitable set of circuits is indicated in Fig. 3, in which the battery is marked 44. From this battery a wire 45 is vled to the springterminal 37. Another wire 46 is led from the revolving barrel 35, before referred to, to the segmental circuit-closin g projection 34. From the spring 32 a wire 47 is led to the magnetcoils 27, and from these coils a Wire 48 leads to the battery. The operation of this circuit is apparent,and a detailed description thereof is unnecessary.

It will be understood that the details of construction by which this invention is carried into effect may be varied within wide limits, and it is obvious that some features of the invention are capable of use independently of other features and in locks which are not electrically controlled. It is to be understood,l therefore, that such independent use of these features is contemplated. The invention is not therefore to be limited to the specific construction which is herein described.

What I claim is-V l. In a lock, the combination with one of the engaging parts, of a withdrawing mechanism including an actuating device and suitable mechanical connections between said device and the part, a normally-inoperative controller for the withdrawing mechanism, and suitable electrical devices for causing the controller to remain inoperative, substantially as described.

2. In a lock, the combination with one of the engaging parts, of a withdrawing mechanism including an actuating device and mechanical connections between said device and the engaging part, said connections being constructed to permitalimited movement of the withdrawing mechanism without moving the engaging part, a controller for the withdrawing mechanism, and suitable electrical devices for actuating the controller, substantially as described.

IOO

IIO

3. In a lock, the combination with one of the engaging parts, of a withdrawing mechanism including an actuating device and suitable movable mechanical connections between said device and the engaging part, a controller mounted on said connections, and a suitably-located magnet for actuating the controller, substantially as described.

4t. In a lock, the combination with one of the engaging parts, of a withdrawing mechanism including an actuating device, of suitable mechanical connections between said device and the engaging part, a normally-inoperative controller mounted on said connections, and a suitably-located magnet for causing the controller to remain inoperative, substantially as described.

5. In a lock, the combination with one of the engaging parts, of a movable member for operating said part, a controller, a connection between the controller and the member whereby it moves with the member, and means whereby the controller is actuated so as to make the movement of the member effective to move the engaging part, substantially as described.

6. In a lock, the combination with one of the engaging parts, of a movable member for operating said part, a controller, a connection between the controller and the member whereby it moves with the member, and electricallyoperated means whereby the controller is actuated so as to make the movement of the member eective to move the engaging part, substantially as described.

7. In a lock, the combination with one of the engaging parts, of a movable member for operating the part, a moving controller by which the movement of the movable member is made effective to operate the engaging part, and a suitably-located magnet across the field of which the controller moves and by which it is actuated, substantially as described.

S. In a lock, the combination with one of the engaging parts, of a withdrawing mechanism including an actuating device, and a movable member adapted to engage said part, a normally-inoperative controller, and electrically-operated means for causing the controller to remain inoperative, substantially as described.

9. In a lock, the combination with one of the engaging parts, of a slide by which said part is operated, means for moving the slide, a normally-inoperative controller for the slide, and electrically-operated means for causing the controller` to remain inoperative, substantially as described.

10. In a lock, the combination with one of the engaging parts, of a movable member, means for actuating the member, a controller for the member mounted thereon, and a suitably-located magnet for determining the position of the controller, substantially as described.

11. In a lock, the combination with one of the engaging parts, said part having a projection, of a movable operating member therefor also provided with a projection, means for actuating the member, a normally inoperative pivoted controller carried by the member, a stop with which the controller engages, the parts being constructed to permit the member to have a limited movement before the controller comes into operation, and means for causing the controller to remain inoperative, substantially as described.

l2. In a lock, the combination with one of the engaging parts, said part having a proj ection, of an operating member therefor also provided with a projection, means for actuating the member, a pivoted controller carried by the member, a stop with which the controller engages, the parts being constructed to permit the member to have a limited movement before the controller comes into operation, and means for rendering the controller inoperative,substantially as described.

13. In a lock, the combination with one of the engaging parts, said part having a projection, of a movable operating member therefor also provided with a projection, means for actuating the member, a pivoted controller carried by the member, a stop with which the controller engages, the parts being constructed to permit the member to have a limited movement before the controller comes into operation, and electrically operated means for rendering the controller inoperative, substantially as described.

14. In a lock, the combination with one of the engaging parts, said part having a proj ection, of an operating-slide therefor also provided with a projection, means for actuating the slide, a pivoted controller carried by the slide, a stop with which the controller engages, the parts being constructed to permit the slide to have a limited movement before the controller comes into operation, and electrically-operated means for rendering the controller inoperative, substantially as described.

15. In a lock, the combination with one of the engaging parts, of a movable member, a controller, a connection between the controller and the member whereby it moves with the member, means for operating the controller so as to make the movement of the movable member eifective to open the lock, and means for actuating the member, substantially as described.

16. In a lock, the combination with one of the engaging parts, of a movable member for operating said part, a controller, a connection between the controller andthe member whereby it moves with the member, means for operating the controller so as to permit the movable member to open the lock, and means for actuating the member, substantially as described.

17. In a lock, the combination with one of the engaging parts, of a slide independent of said part, a controller moving with the slide, means for actuating the controller, and means IOO IOS

IIO

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for actuating the slide, substantially as described.

l-S. In a lock, the combination with one of the engaging parts, of a slide, means whereby the slide is caused to move the said engaging part to open the lock, a controller moving with the slide, means for rendering the controller inoperative when the lock is to be opened, and means for actuating the slide, substantially as described. Y

19. In a lock the. combination with one of the engaging parts of a hand-actuated device, moving means between the hand-actuated device and the engaging part whereby said part may be operated, a controller, a connection between said controller and the means Whereby the controller moves with the means and suitable electrical devices for operating the controller, substantially as described.

20. In a lock, thecombination with one of the engaging parts, of a slide independent of said part, a hand-actuated device for operating the slide, a controller moving with the slide, and a magnetl located along the path of movement of the controller and operating to determine the position of the controller, substantially as described.

2l. In a lock, the combination with one of the engaging parts, of a member for operating said engaging part, means for actuating said member, a controller moving with the member, a magnet located alongside the path of movement of the controller, the controller forming the armature for the magnet, and means for preventing the controller from touching the poles of the magnet, substantially as described.

22. In a lock, the combination with a movable member, of means for actuating the member, a controller moving with the member, and a magnet for determining the position ofY the controller and thus making the movement of the member eective to open the lock, substantially as described.

23. In a lock the combination with a movable member of means t'or actuating the member, a controller, a connection between the controller and the member whereby the controller moves with the member, a suitably-located magnet for which the controller forms the armature and across the iield of which it moves, and means whereby the -movable mem-V ber is caused to open the lock, substantially as described. f

24. In a lock, the combination with a slide of means for actuating the slide, a controller, a connection between the controller and the slide whereby the controller moves with the slide, a magnet for which the controller forms the armature and across the field of which it moves, and means whereby the slide is caused to open the lock, substantially as described.

25. In a lock, the combination with a movable member, of a pivoted controller therefor moving witht-he member, means for holding the controller in anormally-inoperative position, a magnet, 'and means for energizing it,

said magnet being located so as to act upon the controller and retain it in its normally-inoperative position when the magnet is energized, and means engaged lby the controller when the magnet is denergized, whereby the controller determines the movement of the memgaged thereby when the magnet is denergized, and means for moving the slide and controller, substantially as described.

27. In a lock, the combination with a bolt havinga projection, of a slide having a projection which engages the projection on the bolt, a controller pivoted on the slide, a mag- .net located in the path ofthe controller, and operating when energized to hold the controller in an inoperative position, a stop engaged by the controller when the magnet is denergized, a rack for operating the controller, and a hand-operated segmentvfor operating the rack, substantially as described.

28. In a lock, the combination with a bolt having a projection, of a slide having a projection which engages the projection on the IOO bolt, a controller pivoted on the slide, a magnet located in the path of the controller and operating when energized to hold the controller in an inoperative position, the controller forming the armature for the magnet, means for preventing the controller from touching the poles of the magnet, a stop engaged by the controller when the magnet is denergized, a rack for operating the controller, and a handoperated segment for operating the rack, substantially as described.

29. In a lock,the combination with one ofthe engaging parts, said part having a projection,

ot' a slide having an operating projection,

.IOS

IIO

guides for the slide, a controller moving with the slide, means whereby the controller is normally held in inoperative position, a magnet i'or which the controller' forms the armature, said magnet operating to retain the controller in its inoperativeposition when energized, a stop engaged by the controller when the magnet is denergized, and means for actuating the slide, substantially as described.

30. In a lock, the combination with a bolt having a projection, ot' a slide having means 'forengaging with said projection, guides forthe slide, a pivoted controller mounted on'the slide and normally held in inoperative position by one of the guides, a magnet of which the controller forms the armature, said magnet operating when energized kto retain the controller in its inoperative position, means for preventing the controller from touching the poles of the magnet, a stop engaged by the controller when the magnet is dcnergized, a rack for moving the slide, and a handoperated segment for engaging the rack, substantially as described.

3l. In a lock, the combination with one of the engagingparts, said part having a projection, of a slide having means for engaging said projection, said means being normally out of engagement with the projection, whereby the slide is permitted to have a limited movement without operating the engaging part, a controller moving with the slide, a magnet for which the controller forms the armature, the magnet operating when energized to retain the controller in inoperative position, and a stop engaged by the controller when the magnet is denergized, said stop being located so as to permit a limited movement of the slide before the controller engages its stop, substantially as described.

32. In a lock, the combination with one of the engaging parts,of an operating-slide therefor, a controller moving with the slide, said controller having a cam-face, a stop engaged by the controller, means for holding the controller in a normally-inoperative position,said means and stop being located so as to permit a limited movement of the slide and controller, a magnet for retaining the controller in an inoperative position when energized, and a cam-face on the controller, said cam-face being arranged to engage the holding means for raising the controller as the slide resumes its norm al position ,substantially as described.

33. In a lock, the combination with aslide and the means for moving it, of a controller moving with the slide, said controller having a cam-face, means with which said cam-face engages for operating the controller, and a stop with which the controller engages, substantially as described.

34. In a lock, the combination with one of the engagingparts, of an actuating device, connections between the actuating device and the engaging part, a magnet for controlling the connections, a suitable circuit therefor, and two sets of circuit-controlling devices, one set of said circuit-controlling devices being operated by the actuating device, substantially as described.

35. In a lock, the combination with one of the engaging parts, of an actuating device, mechanical connections between the actuating device and the engaging part, a magnet for controlling the connections, a suitable circuittherefor, and two sets of circuit-controlling devices, one set of said circuit-controlling devices being operated by the actuating device, substantially as described.

36. In a lock, the combination with a movable engaging part, of means whereby it is moved to open the lock, a magnet, devices operated thereby to control the operation of said moving means, a suitable circuit for the magnet, and two sets of circuit-closing devices, one set of said devices being operated by the means which move the engaging part, substantially as described.

37. In a lock, the combination with one of the engaging parts, of means for moving it, a controlling-magnet located in the lock-casing, a suitable circuit for the magnet, and two sets of circuit-controlling devices, one set of said devices being located within the lockcasing and operated by the moving means, substantially as described.

3S. In a lock, the combination with one of the engaging parts, of an actuating device therefor, connections between said device and the engaging part, a controlling-magnet, a suitable circuit for the magnet, and two sets of circuit-controlling devices, one set of said circuit-controlling devices being operated by the actuating device, the arrangement bein; such that the actuating device operates said set of circuit-controlling devices before it operates the connections, substantially as described.

39. In a lock, the combination with one of the engaging parts, of an actuating device therefor, mechanical connections bettyy '"1 said device andthe engaging part, a controlling-magnet, a suitable circuit for the magnet, and two sets of circuit-controlling devices, one set of said circuit-controlling devices being operated bythe actuating device, the arrangement being such that the actuating device operates said set of circuit-controlling devices before it operates the connections, substantialiy as described.

40. In a lock, the combination With one of the engaging parts, of operating connections therefor, a controlling-magnet, a suitable circuit for the magnet, two sets of circuit-controlling devices, and a rotating actuating device normally out of engagement with the operating connections, said device also actuating one set of the circuit-controlling devices, said device being arranged to list operate said set of circuit-controllin g devices and then the connections, substantially as described.

4l. In a lock, the combination with one of the engaging parts, of suitable connections for operating the same, said connections including a rack, a controlling-magnet, a suitable circuit therefor, two sets of circuit-controlling devices therefor, a rotating actuating device having a toothed segment for engaging the rack, said segment being normally out of engagement with the rack, and means whereby the rotating actuating device is caused to operate one set of circuit-controlling devices before its segment comes into engagement with the rack, substantially as described.

42. In a lock, the combination with one of the engaging parts, of a slide for operating it, a controller for the slide, a magnet for determining the position of the controller, a suitable circuit for the magnet, two sets of circuit-controlling devices, a rack for operating the slide, an actuating device including IOO IIO

-a rotating toothed segment for operating the rack, said segment and rack being normally disengaged, and. means whereby the actuating device operates one set of the circuit-controlling devices before the segmentengages the rack, substantially as described..

43. In a lock, the combination with one of the engaging parts, of two actuating devices therefor, connections between one of the ac- Io tuating devices and said engaging part, connections between the other actuating device and said engaging part, a controller mounted on the last-named connections, and means for operating the controller to cause said connecr 5 tions to open the lock, substantially as described. Y

,44. In a lock, the combination with one of ...i -the engaging parts, of two actuating devices, a slide between one of the actuating devices 2o and the engaging part, a slide between the other actuating device and said engaging part, a controller mounted on one of said slides, and means for operating the controller to make the movement of the slide effective "?e operate the engaging part, substantially s described.

45.. In a lock, the combination with one of the engaging parts, of two actuating devices, a slide between one of the actuating devices 3o and the engaging part, a slide between the other actuating device and said engaging part, a controller` mounted on one ot said slides, and a magnet `forY operating the controller to make the movement of said slide effective to operate the engaging part, substantially as described. v

4G. In a lock, the combination with one of the engaging parts, of two actuating devices, a slide between one of the actuating devices and the engaging part, a slide betweenthe other actuating device and said engaging part, a controller mounted on one of said slides and governing its movement, and a magnet for actuating the controller, substantially as described.

47. In a lock, the combination with a sliding bolt having an operating projection, of two slides provided with means for engaging said projection, an independent actuating device for each of the slides, said actuating devices lying on different sides of the bolt, a controller for one of the slides, the said controller moving with the slide, a magnet located in the path of the controller and operating to determine the position'of the controller, aI suitable circuit for themagnet, and two sets of circuit-controlling devices for the magnet, one of said sets of circuit-controlling devices being arranged to be operated by one of the actuating devices, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing Witnesses.

HENRY GUY CARLETON. Witnesses:

A. A. V. BOURKE, BENJ. C. VAN CoTT.

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