US764792A - Automatic electric light for telephone-booths. - Google Patents

Description

No. 764,792. PATBNTED JULY 12, 1904.

. J. L. BCLAN.

AUTOMATIC ELECTRIC LIGHT FOR TELEPHONE BOOTHS.

APPLICATION FILED AUG. 23. 1902.

= device of this character wherein the mechan- 4To (LZ1 wlmin, if 77mg/ concern:

specifically pointed out in the claims.

vin like numerals oi" reference indicate like VUNITEDy STATES v Patented July 12, 1904.

PAT-ENT OFFICE.-

JOHN L. `BOLA-N, OF SOUTH 'CON Nn'LLsviLLn, PENNSYLVANIA,

SPECIFICATION forming part of Letters Patient No. 764,792, dated July l12, 1904.

Appiication aies. August 23,1902.

Serial No. 120.763. (No model.)

other end is secured to the base-board, as shown f Be it known that l, JOHN L. BOLAS, a citivgenot the United States, residing at South Connellsville, in `the ycounty of Fayette and State ci' Pennsylvania, have invented anew and useful Improvement in Automatic Electric Lights for Telephone-Booths. of which improvement the following is a specification.

This invention relates to certain new and useful improvements iii automatic electric lights for telephone-booths, and has for its object a device of this character which shall embrace novel means whereby wlienl the oper'- ator actuatesthe bell the vibrations of the knocker will actuate the mechanism for completing a circuit, and thereby light the electric. light within the booth.'

My invention has for its further object a ism may be returned to its normal position and the circuit cut out, thereby causing the light to be put out.

Vv'ith the above and other objects in view the invention consists in the novel construction, combination, and arrangement of parts to 'oe hereinafter more fully described, and

In describing the invent-ion in detail reference is liadto the accompanying drawings, forming a part of this specihcation, and whereparts tb roughoiit the several views, in which---v Figure 1 is a top plan view oi' the invention, showing the same in its operative position. Fig. 2 is a side elevation thereof looking in the direction of the arrow 2. Fig. 3 is a side elevation looking in the direction o arrow 3.

The base-beard l is 1ot unlike those usuallyl employed in connection with telephones, preferably being of a rectangular form, as shown. Centrali)7 this base-board carries a bracket 2, secured by means of the screws 3 to the board, this bracket having an upwardly-'extending member 4, receiving the one end of the arm 5, secured, as at 6, by means of screws` this arm at it lower end-carrying a lug 7. Pivotally secured between this lug and the base-board 1 is a lever 8, pivoted, as at 9, and carryinga hook member 10. A'spring 11 is secured to the-.g lower end of the lever, as at 12, and at its:A

at 1 3. Slightly below its hooked end this levor carries a clamp 14, receiving the one end of the connecting member l5 in .the forni ofa Z, the upper end of this connecting inem-l ber being secured to the arm 17, carrying the -knoclter 18 at its upper end. -This arm, as

willbe understood. operates, or rather sounds. the bells common to all telephones, as is well known in thc art. Pivoted to the base-board,

as at. 19, is an arm 20, having its one end'21'-l protruding beyond the base-board in order that .the same may be conveniently operated. At n its rear this arm is enlarged and merges into a hook portion 21, which is adapted for engagement with the hooked end of the lever.

This arm .is secured in its normal position by I means of the contact-finger 22, carrying a portion of the arm `20 and presses thereagainst.

This contact-finger is pivoted, as at 24, to the base-board and has connected thereto the spiral spring 25, secured, as at 26, to the contactlinger, and, as at 27, to the base-board. A contact 28, comprising a metal piece having its portion bent at'right angles,as at 29, is se cured to the base by means of the screw 30 and is adapted for engagement with the con- .tact-finger for the purpose of completing the circuit, now to be described.

Battery 3l has a wire 32' connected thereto,- which is connected to 24, and wire 33' of this v:battery is connected to post 34, the latter being connected to wire 32 of vthelamp, the other wire, 33, of the lamp being connected to 'con-- tact-post 28.

In operation it will be noted that when the` I 'knocker is actuated the hooked end of the lever will be thrown from out of engagement with the hook member of the arm, and byreason of the tension exerted thereon caused by the exertions of the spring 25 this arm will have its outer end thrown downwardly, 'thereby permitting the contact-finger to engage with the contact, completing the circuit. B i reason of the and throwing the light in. taper imparted to the upper face of thehooked end of the lever the samemay -be readily.

brought into its normal position by. Simply a ,4, .,.Hisvmwiur i hun.. im i l l .from the drawings.

raising the arm .20 upwardly. as will be noted lVhile in the accompanyingdrawingslhave illustrated the most practical embodiment of the invention, still it will be obvious that slight various changes or alterations may be made in the general details ot construction and combination of parts without departing from the spirit and scope of the invention.

Having' thus fully described the invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a device of the character described, a Source of current-su pply having a lamp in circuit therewith, a bell mechanism having an oscillatory knocher connected thereto, a hooked lever carrying said knocker, and pivotaily secured t0 thebase of said device, an arm adapted to normallyv engage said lever, a contact-linger held normally out of contact by the end of said a-rm, means to establish Contact between said iinger and a contact-piece on the oscillation of said knocker, thereby connecting said lamp in circuit, substantially as described.

2. 1n a device of the character described, the combination of a source of current-supply, a bell mechanism, a circuit connecti' g a lamp to said supply and adapted to be closed bythe oscillation of the knocker of said bell mechanism, a hooked lever pivtally mounted on the base ot' said device, carrying said knocker at one end, a. spring secured t0 the other end of said lever, a pivotedarm having a recess in one end adapte-o to be engaged by the hooked end of said lever, a spring contact-{inger normally holding open said circuit of the lamp, said arm adapted to release the contact-piece upon the oscillation of the knocker carried by said hookedv lever, thereby establishing the lamp-circuit, substantially as described.

3. In a device of the character described for telephones, a source of current-supply, a bell mechanism, a lamp connected by a circuit to the said current-supply, a pivoted arm extending from the base of said device, an inner enlarged end thereon having a recess therein adapted to be engaged by a hooked lever, said lever carrying ther knooker of said bell mechanism, a bracket on basholding said lever in pivotal connection, a spring attached to' said lever to hold the samein contact with said arm, a spring-pressed contact-finger for closing the lamp-circuit, said pivoted arm normally holding the finger out of contact, and

. adapted to free the same on the oscillation of the knocker of the bell, substantially as described.

In testimony whereof 1 have hereunto signed my name in the presence of two subscribing witnesses.

JOHN L. BOLA N.

In presence of- LoUIs MoEsER, JOSEPH POWERS.

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