US1210835A - Device for attaching and detaching electric bulbs. - Google Patents

Description

J. A. PRICE. DEVICE FOR ATTACHING AND DETACHING ELECTRIC BULBS.

APPLICATION FILED .|UNE18, l9l5. 1,210,835.

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Patented Jan. 2, 1917.

the following JosEPH '-ALExANnEnrnrcE, :or` NEW YORK, N. Y.

DEvIcE ronI ATTACHING- AND DE'rAcHING ELECTRIC' BULBS.

To all whom z't may concern: v

Be it known thatvI, JOSEPH ALEXANDER PRICE, a citizen .of Scotland, vresiding atI New York, in .the-county 'of New York and State of New York, have invented certain new vand useful 'Improvements in Devices for Attachingandv Detaching Electric Bulbs, of which the'following is a specification. y

Thisinvention relates to devices for attaching and detaching` electric bulbs, especially where the 'bulbs cannot be conveniently reachedfrom the iioor.

An object of the invention is to Aprovide a device which is equally adaptable'for use with bulbs dependin from the ceiling, etc., or projecting lateral y from thel wall.

Another object residesin the provisionlof mechanically expansible and contractible bulb engaging members, the latter f being likewise inherently expansible and contractible,'to accommodate vvarious siz'es of bulbs therein, through the medium of the lsame component parts. n

Other objects as well as the nature,y characteristic features and scope of my' invention will be more readily understood from description taken in connection with the accompanying Vdrawings and pointed out-in the claims forming a part of this specification. l Y

AReferring to the drawings, Figure 1 is a side elevational view of the device constructed in accordancey with my invention and illustrating its application, Fig. 2 is a fragmentary sectional view of the device, showing to advantage the interior of the housing and the `details associated therewith, Fig. 3 is a horizontal sectional view through the housing of my improved device, a portion thereof being shown in fragmentary-section to disclose details, this view likewise'illustrating the application of the invention, Fig. 4 is a detaill enlarged fragmentary sectional view ofthe device' illustrating to advantagethe manner in vwhich the bulb engaging member is mechanically contracted, Fig. 5 is a detailenlarged y fragmentary sectional view of the standard and handles used in the present invention, illustrating the manner of association of the same, Fig. 6 is a sectional view taken on the line 6-6 of Fig. 1, Fig. 7 is a detail enlarged perspective view of the rotatable cap with which the bulb embracing member is engaged, and Fig. 8 is a detail enlarged perspective fragmentary View of the housing.

Specification of Letters Patent.

Patented Jan. 2, 1917.

' Application ined-June 18, 1915. s''riai iva-34,880.

The device embodies a tubular standard 1, the upper' end of which supports a housing 2, the latterbeing of a rectangular configuration andhaving one side thereof removable, whereby access may be had to the yinterior of the housing. A stud 3 is arranged on the top ofthe housing 2, and is adapted for engagement with the bulb -embracing member hereinafter described. 1Apin 4 extends 'transversely througlrthe stud 3 and appreciably beyond the outer periphery of the latter at diametrically opposite points.v

A shaft 5 is rotatably mounted in the tubular standard 1, the lower end of which is reduced and screw-threaded as indicated at 6 and shown to advantage in Fig. 5, for screw-threaded Vengagement in a handle 7, the latter being of any desired configuration, soas to lbe conveniently. grasped by the hand oftheuser ofthe device, topermit rotation ofthe yshaft 5 with lwhich the handle is associated. yIt will be noted that the inner terminalv ofjtheha'ndle 7 is provided `with an annular depressed portion 8, which receives the lower 4endof the tubular standard 1. The upperend of said shaft 5 has a beveled gea-r 9 ixedly engaged therewith, the gear 9V comeshing with a beveled Apinion 10, in order to impart movement to the latter, when 4the shaft 5,is rotated. As illustrated to advantage in Fig. 2, the gear 9 is engaged with-the lower end of the housing, while'the gear 10 is engaged with one side thereof, said latter gear Lbeing provided with a threaded bore which is engaged in screwthreaded relationwith the threaded shank 11 of a tubular shaft 12. The threaded end 11 of the shaft 12 extends laterally beyond one side of the housing 4and is in threaded engagement with a nut 13, the latter having pintles 14 extending from its periphery for a purpose hereinafter set forth. The other end of theshaft 12 is extended through an opening in the opposite wall of the housing with which the gear 10 is engaged, and has threaded t'hereonasnut 16, the latter providing a bearing for the shaft 12 and being loosely mounted through an opening in the housing. As illustrated to advantage in Fig. 2. the gear 10 is threaded on the shaft 12 as far as possible, after which the nut is rotated into intimate contact with said gear, so as to prevent movement of the latter independently of the shaft 12.

The bulb embracing member is generally designated. in the drawings at 1'? and consists of a capv19, preferably rofl-afcylindrical'v l 'engaged with the shank 19, so as to provide i outwardly soy as to facilitate is exerted on the a substantially ovoid structure, 'when the fingers are all in assembled relation, as illustrated to advantage in Figs. 1 and `3. The outer terminals offthe fingers 20 arelared with an'electric bulb, the latter cated in the drawings atY 21. It understood that the lingers inherently resilient nature, so as to be adaptable for use withelectric bulbs of various sizes. It is well known, however, that with inherently resilient members the same are very readily distorted by constant use, so as to be'rendered unsuitable for use, after a comparatively short length of timefor use in connection with smaller objects, and .for this reason av mechanical means is provided for contracting the fingers 20, andrpermitting the latter to be automatically expanded being indils of course, 20 are of an vrupon retraction of `the mechanical means.

The mechanical means in the present instance embodies a sleeve 22,having an internally screw-threaded portion for .threaded engagement with the shank 19, and movable on the latter for contracting the vlingers 20, as illustrated to advantage in Fig. 4. It will be noted that the bore on the outer end of the sleeve 22 is flared so as to facilitate contraction of the lingers 20, when pressure sleeve 22, for operating the latter into engagement with the fingers.

In use, therefore assuming that it is desired to use the device in connection with laterally projecting electric bulbs, the bulb embracing member 17 is slidably engaged with the nut 13, and in order to prevent theldisplacement of the member from said nut, a bayonet -groove 23 has been formed in the cap 18 of said embracing member, which is adapted to receive the members 14 Copies of this patent may be obtained for five cents each, by addressing the '.C'oniniiissioner vof Patents Washington, D. C.

2 is open, while the opposite engagementy therein. After this operation, pressure is exerted on the handle end 7 of the device, so astorotate theV shaft 5, consequently imparting movement to the comeshing gears 9.and- 10 Vfor communicating Vmovement to the bulb embracing member in order to rotate the lbulb in the desired direction.` If desired to remove bulbs depending from a ceiling, etc., the bulb embracing member 17 is engaged with they stud 3, and the member 4 of said stud engaged in the bayonet grooves 23 of the cap18, in order to preventl casual displacement .of thelatten 'In this instance, fthe entire device is bodily movable, member, which is superimposed onfthe housing 2, for rotating said bulb embracing member, the direction of movement of the device. i

It will be understoodthat the vabove description and accompanying `drawings .comprehend only-the general and perferred embodiment of my invention and that various minor changes in details of construction, proportion and arrangement of parts may be made within the scope of the appended claims without sacrificing any of the ad-v vantages of my invention.

Having thus fully described my invention,

what I claimv as new and desire to secure by Letters Patentis:

1. A device for attaching and detaching electric bulbs including a bulbembracing thereby rotatingthe bulb embracing member', means in connection with said member 'for rotating the latter,v a housingVV for completelyV inclosing saidV means, and.

secondary means for imparting movement to the aforementioned means.

2. A device for attachingand detaching electric bulbs including a polygonal housing, a bulb `embracing member in connection with one Arace ofthe housing and movable independently of the latter for use in connection with laterally extending bulbs, and means mounted on another'face of thehousing to receive said member, the latter adapted to move as an entirety with the housing for use with vertically depending bulbs. Y,

In testimony whereof I afix my signature in presence of two witnesses.

' JOSEPH ALEXANDER PRICE. Witnesses: Y i GEO. A. BACON, MARGABETVM. REYNOLDS.

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