US900439A

US900439A - Lamp-guard.

Info

Publication number: US900439A
Application number: US40712407A
Authority: US
Inventors: Peter Sorensen
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-12-19
Filing date: 1907-12-19
Publication date: 1908-10-06
Anticipated expiration: 1925-10-06

Description

P. SORENSEN.

LAMP GUARD.

. APPLICATION FILBDDBO. 19. 1907.

IIVVENTUR ez er saremse v ATTORNEY-5' 2 SHEETS-SHEET 1.

Patented Oct. 6, 1908.

WITNESSES:

P. SORENSEN.

LAMP GUARD. APPLICATION I'ILEI) DEO.19, 1907.

900,439. Patented 0012.6,1908.

2 SHEETS-SHEET [a 20 M /7' J o 22 a a o o M 3a 0 A WITIVESSES: lA/i/ENTOI? v. I N Pm ATTORNEYS ,sarens e r:

-- parts hereinafter mine porting member ofthe 1 UNITED STATES PATENT OFFlOE.

PETER S'ORENSEN', OF BROOKLYN, NEW YoRK.

LAMP-GUARD.

No. 900,439. I'

Application filed' December 19, 1907. Serial1Io.'4:07,124.

To all whom it may concern:

Be it known that 1, PETER SORENSEN, a citizen of the United States, and'a resident of. Brooklyn, .in the county of Kings and Stateof New York, haveinvented certain new and useful Improvements in ,Lamp- Guards, of which the following is a specification. l

My invention relates to guards for incandescent electric lamps, the object being .to provide a simple, strong and eflicient' device from which the lamps may be easily and quickly removed and replaced. v

. 'lo-these ends'lny invention consists in the details of construction and combinations of particularly described and then specified in the claims. j In the accompanying drawings, Figure 1' illustrates in side elevation a lamp-guard constructed in accordance with my invention, Fig. 2 is a central longitudinal section ofthe same on the line 00 a: on an enlarged 4 scale, the lamp being shown-in side elevation.

Fig. 3 is a plan view of the same looking at the handle side of the base. Fig. 4 is a hori-' zontal section on'the line Y Y, Fig. 2, the .lamp being removed.

1 indicates a-handle provided with a central longitudinal passage 2 within which at 30 its upper end is secured a sleeve 3. A -circular plate 4 is seated upon the upper end of the handle 1 and clamped thereon by any suitable means such as a washer 5 preferably of insulating material and nut '6 having a threaded engagement with the part of the sleeve 3 which projects from the handle 1.

After the plate 4 sleeve 3 still projects upward from the nut 6, and to it is secured the incandescent lamp 7 :as is usual in :the art. p g

The handle and plate secured thereto form the supporting means of the device for the lamp and the guard. The 'gu'ardproper is adapted tobe removably secured tothe supdevice and comprises a cage made up ofa plurality of parallel vertical wires 9inounted .attheir lower ends to a base consisting preferably inner diameter of said ring coinciding closely with the-diameter-of the plate 4, said plate being adapted to be inserted within the ring 8. The wires 9 ass up through a reinforcing ring 10 pre erably disposed below the glass portion of the lam-p 7 so as not to obstruct any light therefrom and are bent-over Specification .of Letters Patent.

tongues 15 are has been secured to the handle by the nut and washer the end of the free ends-of the than the depth of a ring 8, the

' Patented Oct. 6, 1908.

at their upper ends and secured to a hub 11 preferably by threading the same radially therein as well known in-the art. Also sec-ured'to the hub 11 is a hook 12 to provide means whereby the lamp maybe hung whereever desired.

Secured to the hub 11 within the cage is a loop of spring metal 13, provided with a hole 14 centrally located witlrregard to the cage which is adapted to receive the sealed tip of the bulb of the lamp. This loop 13 bears against the end of the bulb of the lamp thus supporting this to centrally locate it and prevent the lamp from hitting the wires of the cage and being broken if the lamp should become loosened fr-omits socket as frequently happens.

' the base 8 at The wires 9 are secured to their lower ends preferably by upsetting the same and thus riveting them to the base as 1s usual in the art, A plurality of

tongues

15, 16 projecting radially inward from the end of the lamp and servesbase or ring 8 form clamping nieans bywhich the guard is secured to the supporting plate 4; The

tongues

15, 16 are preferably formed from .a single strip doubled upon itselfand located one above and the other below the ring 8 and secured thereto by the riveting of the ends of the wires 9. The tongue 16 located on top of the ring-8 jects further inward than the tongue 15-10- A plurality of recesses 1.7 conforming in number, location and size with the projecting free end of the provided in the periphery .of the plate 4 so that the free ends of the tongues 1'5 will pass through the recesses and byturning the handle and and guard supported by it torthe support ngpart of the device. The

of the reeesses17 limit the inward movement of the plate 4 and cause it to register with the ring 8. Referring more particularly to'Fi-gs. 3 and 4, 18 indicates a detent pivotally mounted upon the plate am such position that its free end wilLengagethe side of the free and of one of the tongues 15, the detent being plate 4 the ring 8 will be held fast cated on the bottom of-the ring for reasons a to bepresentl'y set forth.

tongues 16 projecting further held in this position by a spring 19 preter-' ably also mounted on the free end of and forth'movement of the detent into and out of engagement with the tongue 15 is limited by a latera 1y 'p' on the-plate 4. and acting the detent'I-S." The back i j c n Pia -35 m:

.' securing the twomembers of the device together the recesses 17 are registered with the tongue 15 and the plate 4 turned in the direction of the arrow a, the free end of the detent 18 riding on the free edge of the tongue 15 untilthe plate has been revolved suflici'ently far to allow it to be forced free and in position to engage the side of the tongue should the plate be revolved in the reverse direction orthat of the arrow 7). A stop 22 on the plate dengages the. other side of; thetongue when the detent has revolved beyond the tongue and prevents, further movement of the plate in the direction of the arrow (4. The supporting partof the device and the guard thus become locked together and canngt'be separated until the detent has been swung clear of the tongue and the plate 4 turned until the recesses register with the tongues 15 when the parts can again be separated. I

While I. prefer to have the stop 22 operate upon the same t-ongue lo as the defeat operates upon, it is obvious that it might be. disposed to operate on any other tongue or on one of the tongues 16 without departing from the spirit of my invention. invention is equally applicable to a device wherein the socket for the lamp is located. within the handle instead of being secured to the end as herein shown.

\Vhat I claim as my invention is:

1. In' a. lamp guard, the combination of a plurality of wires forming a cage, a base provided with a central opening secured to the ends of said wires, supporting moans cmnprising a. handle and a plate secured thereto adapted to register with the opening in said base and adapted to be rrvolv-od (heroin, and inwardly projecting clamping: members formed of a single picro of metal bent over the edge of said base and adapli-d to engage said plate on bolh fares, said members being secured ends of said wires.

2. in a lamp-guard he combinalion ol a plurality of wires forming a rage. a base lo said base by the provided with a central oponinn srrurcd lo "over the ends of said wires, long and hort inwardly projecting clamping members si l-to the base by said wires and congot a singlcpirrc brnl bar-h upon ilsrll' y lo outer cdgcol said base. a. support-- ing hl dle, and a plain sccurcd lherclo providodfwilh recesses in its periphery for (he Also my passage oiv the short (Iltllllljllllg members, said periphery for the passage of the short clampmg members, said plate being adapted to be revolved in the opening in said base to throw said recesses out of alinenient with said clamping members to secure said cage, a fixed stop and a. pivotally mounted movable stop operating on said clamping mean bers to lock said plate and said. cage.

4. In a lamp-guard the combination of a. plurality of wires forn'iing a cage, a base provided with a central opening; secured to the ends of said wires, long and short clampinn members secured to the base by sald wires, :1 sumiorting handle. a plate secured to said handle provided with recesses in its periphery for the passage of the short clamping members, said plate beimg adapted to be revolved in the opening in said base to throw said recesses out of alinemcnt with said clann inp members to secure said cage, a fixed stop on said plate operating on one of said clan'iping members adapted to prerem. said plate luring revolved in one direc- 5. in a lamp guard the combination of a plurality oi wires Forming a cage, a. base provided with a central ()Iltlllll},f secured to the ends of said wires. ion; and short clamping mcmbm-rs srcurvd lo the base by said \vir'rs. a supporting handle. a plate secured to saul handle provided \Vllll recesses In its periphery tor the passage of the short "lumping n1o1nln-rs.sa|d plzdo being adapted lo bo revolved in the opening In said base said clamping mcmbrrs lo sci-urn said cage, a fixed stop on said plalc operating on one oi said rlamoin; mcmbors adapted to pre vent said plalr bring revolved in one direction and a dclout mounted on said plate operating on one oi said clamping members adnplcd lo prrvrnl said plate llllllg revolved in Ibo npposilr dirrrlion.

.s'in'ncd :d .Yow York in lhe county of .(-w York and Hialo of New York this lz'l'h rln oi ll'rr mbcr l). 1907.

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