US1708661A - Alaem dsiyics - Google Patents

Description

A ril 9, 1929. M. J. CAWLEY BURGLAR ALARII DEVICE v Filed Au .'19, 1927 Patented Apr. 53,

UNITED STATES MICHAEL J. CAWLEY, (3}? YORK, N. 31.,

were

ASSIGNOR .It) MILDRHE M. DANIELS, OF

BU'RGLAR ALAIEEId Application filed August 19, 1953".

This invention relates to switch devices and particularly to devices of this class for use in connection with alarm circuits for protecting doors of residences, banks. bank vaults, as well as for controlling any member governing the admission to a room or compartment of any kind or class, as well as to a switch device which may operate to control a member, device or mechanism or apparatus of any kind or class, such for example as the devices or mechanisms controlling the operation of a motor vehicle; and the object of the invention is to provide a switch device which is adapted to be mounted in conneetionwith the door or other member to be controlled and provided externally of said door with a dial. by means of which the proper setting of the switch is facilitated; a further object being to provide a contact disk constituting part of a notched disk adjustably supported in connection with the door to permit of its setting into (li fl erent positions and a spring contact arm movably disposed over the surface of the contact disk to control the alarm circuit, said contact disk having a non-coir ducting surface at a predetermined point thereon with which said spring contact is u d apted to register; a further obj ect being to provide a device of the class specified which by virtue of the structure einplhyed will take up comparatively little room on thedoor or other member in connection with whieh'the same mounted, and which will be simple and positive in operation; and with these and other objects in View, the invention consists in a device of the class and'tor the purpose specified, which is simple in construction efiicient in use, and which. is constructed as hereinafter described and claimed.

The invention is fully disclosed in the fol lowing specification, of which the accompanying drawing formsa part, in which the separate parts of my improvement are designated by suitable reference characters in each from with the wire 10, and

closed to the wall la and peril hoolpsha Serial. lfl'ej Fig. 6 a perspective detail View of the switch arm which. I employ; and

7 is a face View of the dial control. H In Fig. l of the diewi11g l have shown for the purpose of illustrating one method of carrying my invention into effect, an alarm circuit wherein 5 represents batteries or other source of electric supply one wire 6 said source extending to one sideot' terminal 7 of a circuit connecting a breaking device 8 which is controlled by the opening and closing of the door 9, while the other wire 10 from said source extends to an electromagnet 11 and from said m agnet to a hell or signal device 12. to the wire 13 and to one contact 14. of my improved switch device 15 to the wire .16. Another wire 17 from the contact 18 of the switch device 15 extends through a manually controlled.switch 19 to the other contactQO of the circuit making and breaking device 8. The wire21 is coupled with the hell or signal device 12 and another wire coupled with said signal device and with the wire 6, thecirc it thr ugh the last named. wire being eontroll the armature 23 actuated by the e 1 151M161; 11, the latter construction to .itain the circuit signal device 12 to constantly the alarm until such circuit is broken sound.

when the circ it is once put in operation by the. device 8 which iscontrolled through the switch device 15.

The contact 14+. 211 the construction shown consists of a cup-s raped disk having a back fro the back wall to form the casing proper of th switch device which secured to the inue. cc of the door 9 as seen at it. ll en l or OilllGIWlSG secured to the back walll a disk 24 of insulating material havin twe outwardly projecting; are 25 adapted to engage 18 to secure the disk he contactdisk 14: or The disk 18 is or disk or t-l at right ang notches'ltl in thh dis 18 con ition w' wall 1 thereo't.

' i kill by an insulatin wood. that the parts 14- 18 xnbled as a unit or to form tit 27, I have shown the I wiich is passed through an aper the. shatt being provided at lie outer side oi the door. with an op- )heral flange 14; extend l. O l) crating knob 28 having an indicating finger 29 which cooperates with the dial plate 30 secured to the outer face of the door 9. The inner end of the shaft 27 is flattened on two 8 sides as seen at 27 and threaded on its other side as seen at 27". Mounted on the inner end of the shaft is an adpistment wheel 31,

' the periphery of which is provided with a the alarms of the circuit.

plu"ality of notches 32 in connection with which a spring pawl 33operates; The latter is securcdto the flange 14" of the contact 14, y and the wheel 31 is adapted to be rotated to bring the same into different positions of the adjustment with reference to the indicating finger 29 of the knob 28 for the purpose of bringing a nonrconducting surface 34 of a contact disk 35 in predetermined position with reference to the numerals of the dial 30. The disk 35- is arranged on one side face of the wheel 31 and is secured thereto by three fingers 36 passed through apertures in the wheel 31 which are bent upon the opposite face of the disk, forming three contact surfaces which are adapted to engage the contact disk .18, thus completing the circuit from the wire '17 to the disk 35. v I

The shaft 27 contacts with the contact 1 1 as seen at 37 so as to place the shaft 27 in circuit with the wire 16. Secured to the shaft 27 inwardly of the wheel 31 is a spring contact finger 38 having an aperture 39 to fit upon the flat sides 27 of the shaft 27 to key the finger 38 therewith, and the free end of said fingeris bent into hook fashion as seen at 1O and is adapted to tensionallyengagethe disk 35 and move freely thereover as wellas over the non-conducting surface 34 of the disk 35.

i the contact 14 and retained against displacement therefrom by engagement with a number of pins 44 onsaid contact operating in bayonet or other slots in the cover 43. r

, VVith my improved construction, it will be understood that the fingers of the contact disk 35 are] held in firm engagement with the contact disk 18 and the spring contact finger 38 tensionally engages the disk 35 at all times. In the use of the device, thc knob 28 is'rotated to bring the finger 38 into alinement with the non-conducting surface 34; by breaking the circuit through the wires 16 and 18-to permit of the opening of thedoor without sounding The operator is guided in this operation by the movement of the finger 29 into registering position with one of the indicatingmarks of the dial 30. Whenever desired. the wheel 31 may be ad'- justed tomovefthe non-conducting surface 34;

vinto different positions with reference to the numerals of the dial 30 to change the combination. This result 1S accomplished by removmg the cap 13, grasplng the finger 38 in one hand and rotating the wheel 31 by the other hand. The notches 32 serve to accurately place the nonconducting surface 34 with reference to the markings of the dial. In this operation, the nut 41 may be loosened if desired, but this is not absolutely neces sary.

It will also be understood that while I have shown certain details of construction for carrying my invention into'eifect, that I am not necessarily limited to these details, and various changes in and modifications of the construction herein shown and described may be made within the scope of the appended claims, without departing from the spirit of my invention or sacrificing its advantages. It will be apparent that while I have illustrated and described my invention as applied to a door, that the same may be used in con nection with and adapted to control devices, mechanisms or apparatus of any kind or class, forexample, a switch device may be employed to control, by virtue of its electric circuit, in. the operation of control, devices or mechanisms of a motor vehicle to prevent the theft of such vehicles, and many other uses which will present themselves to those skilled in the art. 1 l

Having fully described my invention,'what V I claim as new and desire to secure by Lettors Patent, is I 1. A switch device of -the class described comprising a manually actuated member, means for indicating the several positions of said, member, an electric spring contact finger actuated by said member and movable over a contact surface supported in the path of movement of said contact, an insulated. surface'interposed in the path of said contact to break the circuit thereto, a notch adjustment wheel supporting said contact surface and a stationary contact disk, andmeansfor placing the contact surface of said wheel in direct contact with said stationary contact disk.

2." A switch device of the class described mentwheel supporting said contact surface and a stationary contact disk, means forplacing the contact surface of said wheel in di- "rect contact with said-stationary contact disk,

and means for insulatingsaid stationary con tact disk from said manually actuated meniber.. I l

3. A-switch device of the class described comprising a cup-shaped casing, a shaft mounted in and in circuit with said casing, a stationary contact disk supported in connection with said casing and insulated from said shaft and said casing, a notched wheel mounted on said shaft and adapted to be keyed in different positions of adjustment in said casing, said wheel having a contact surface, means for placing said contact surface in electric contact with said stationary contact disk, a spring contact arm on said shaft and rotatable therewith, said arm being movable over and tensionally engaging the contact surface of said wheel, and a non-conducting surface in the path of said spring contact arm.

4:. A switch device of the class described comprising a cup-shaped casing, a shaft mounted in and in circuit with said casing, a stationary contact disk supported in connection with said casing and insulated from said shaft and said casing, a notched wheelmounted on said shaft and adapted to be keyed in different positions of adjustment in said casing, said wheel having a contact stirface, means for placing said contact surface 1n electrlc contact with said stationary contact disk, a spring contact arm on said shaft and rotatable therewith, said arm being 1novable over and tensionally engaging the con-- said shaft and said casing, a notched wheel mounted on said shaft and adaptedto be keyed in different positions of adjustment in said casing, said wheel having a contact surface, means for placing said contact surface in electric contact with said stationary contact disk, a springcontact arm on said shaft and rotatable therewith, said arm being movable over and tensionally engaging the contact surface of said wheel and a non-conducting surface in the pathof said spring contact arm, a nut in threaded engagement with said shaft for retaining said spring contact arm and said. wheel against displacement therefrom, and a cap detachably coupled with said casing and enclosing the remainder of said switch device.

6. A switch device of the class described ed on said shaft and adapted to be keyed in different positions of adjustn'ient in said casmg, said wheel having a contact surface,

means for placing said contact surface in electric contact with said stationary contact disk, a spring contact arm on said shaft and rotatable therewith, said arm being movable over and tensionally engaging the contact surface of said wheel and a non-conducting surface 1n the path of said spring contact through which said shaft passes.

'2'. A switch device comprising a casing with which one circuit wire is adapted to be coupled, a stationary contact disk secured to said casing and insulated therefrom and with which the other wire of said circuit is coupled, and switch member for opening and closing the circuit through said wires comprising a shaft passing through said cas ing and in contact therewith and insulated from said stationary contact disk, an adjustable cont: ct disk having a iuni-coiulucting surface in circuit with said stationary contact disk and throughwhich said shaft passes and insulated therefrom, and a switch arm. secured to said shaft and rotatable over the adjustable contact disk and. said non-conduct in rface to control the circuit through said wires. j

8. A] switch device comprising with which one circuit wire is a a a casing ted to be coiuoled, a stationary contact dish secured to said casing and insulated therefrom and with which the other wire of said circuit is coupled, and ,(L-SWICh mcmlier for opening and closing the circuit through said wires comprising a shaft passing through said casing and in contact therewith and insulated from said st tionary contact disk, an adjustable contact disk having a non-conductii surface in circuit with said. stationary contact disk and through which said shaft passes and insulated therefrom, a switch arm secured to said shaft and rotatable over the adjustable contact disk and said non-conducting surface to control the circuit through said wires, and means for keying the adjustable contact disk in different positions of adjustment with ref erence to the casing.

9. A switch device con'iprising a casing with which one circu wire is adapted to be coupled, astationary contact disk secured to said casing and insulated therefrom and with which the other wire of said circuit is coupled, and a switch member for opening and, closing the circuit through said wires comprising a shaft passingthroughsaid casing and in contact llllGlEWltll and insulated fromsai'dstationarj contact disk, an adjustable contact disk havinga non-conduct1nlg surface in circuit with said statlonary contact disk and through which said sha'ftpasscs and is insulated therefrom, a switch arm sewith reference to the casin and means for supporting the contac ariu and said adjustable contact disk on said shaft.

10. A. switch device comprising a casing with which one circuit Wire is adaptedto he 7 coupled, a stationary contact disk secured to said casingand insulated therefrom and with which the other Wire of said circuit is ceupied, and a switch member for opening and closing the circuit tl'irough said Wires con prisinjy a shaft passing: through said casing iircontacttherewith and insulated from said stationary contact disk, an adjustable contact disk having a non-conducting surface in circuit with said stationary ci'untact disk and through which said shaft passes insulated therefrom, a switch arm see red to said shaftand rotatable over the adjustable contact disk and said non-conducting surface, to control the circuit through said wircg neans for keying the adjustable contact disk indifferent positions of adjustment; with reference to the casing, means for supporting" the cont-act arm and said" adjustable contact disk on said shaft, and means at the outer end of said shaft for indicating the several positions of rotatable adjustment thereof. V r p 11. In a switch device of theclass described, an adjustable wheel, the peripheryof which is provided. with a plurality of notches, a spring pawl for engaging the notches, of said wheel to retain the same in different positions of adjustment, a contact disk on one face of said Wheel and having a radially arranged ving' the adjustable ccnand is non-conducting surface at one point of its periphery, said contact disk having prongs passed through saidxjvheel to expose said disk atthe opposite face of the Wheel for enr tlllt llt with another contact.

In a switch device of the class described, an adjustable Wheel, the periphery of which is provided 'ith a plurality of notches, a spring pawl for engaging the notches of said Wheel to retain the same in different positions of adjustment, a contact dsk on one ace of said Wheel and having radially arranged non-conducting surface at one point of its ieriphery, said contact disk having prongs passed through said disk at the opposite face of thewheel for engagement with another contact, and

means for rotatahly supportinga spring; contact arin i'vith reference to said contact disk to tensionally eng-o go the same and said nonconducting surface.

13. In a switch. device of the class dehed, anjadjustahle Wheel, the periphery of which is provided With a plurality of notches, spring pawl for eii 'aiging tie notches of id Wheel to retain thesaine in different p0 said Wheel to expose sitions of adjustment, a contact disk onone conducting surface, and a spring contact disk arranged toshe engaged by the prongs'of he first named Contact disk and insulated from said spring contact'arin. I

In testimony that I claim tl'iefo-reg'oing as my invention 1 have signed my naine this 1? th day of August, 1927. j

' MICHAEL J. CAJVLEY V

Images