US1824955A

US1824955A - Adjustable candle socket mounting

Info

Publication number: US1824955A
Application number: US274895A
Authority: US
Inventors: Jr Harvey Hubbell
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-05-03
Filing date: 1928-05-03
Publication date: 1931-09-29
Anticipated expiration: 1948-09-29

Description

Sept. 29, 1931. H.- HUBBELL, JR 1,824,955

ADJUSTABLE CANDLE SOCKET MOUNTING Filed May 5, 1928 Patented Sept. 7 29, 1931 ir-ED] ATES HARVEY HUB'IBELLI', an; or"

BRIneEroR'r, conivncrrcur f AnJUsr-ABnn c NDLE "sooxnr MOUNTING Application filed Ma} 3,

This invention relates to candle sockets for I lighting fixtures, and has foran object to provide animproved adjustable mountlng for these sockets. u e a It is also an object of the inventionto provide an improved mounting of this type in which the adjustment depends on a single screw only which will lock the elements in a rigid manner, and may be adjusted to any 1c point throughout the entire range. I

It is a further ob 'ect' of the invention to provide an adjustable socket in which the range of adjustment forthe same length of socket is greater than that in the constructions now generally in,use.' M

. WVith the above and'otherobjects in view, the invention consists in certain novel features of construction,combinations and'larrangements of parts as will be'more fully described, various constructions illustratlng my invention being shown 1I1 tl 16 accompanying drawings. In these drawings,

Fig. 1 is a rear elevation of'a candle socket involving my invention, the ,enclosing 'cas- 2n ing being removed and the cup be ng. shown in section. 1 g i X p I Fig. 2 is a sideelevation'of the same looking from the right-of Fig.1. v 1

Fig. 3 is a transverse seection substantially on line 33 of Fig. 1. p

Fig. l is a' rearnelevation" similar to- Fig.

1 but showing the-useof the invention on a smaller type of candle socket,particularly as made from bakelite or similar material. 3 Fig. 5-is a side elevation thereoflooking fromthe right of Fig.

Fig. 6 is a transversesectionsubstantially on line 6-6 of Fig. 4. i

Fig. 7 is a rear elevation similar to Figs. 1

and l showing my invention as applied to an adjustable candle keyless'socketg I l Fig. 8 is a side elevation thereoflooking from the right of Fig.7 showing the' fibre lining in place, and

1928. Serial No. 274,895.

Fig. 9"is a transverse section substantially on line 9-9 of Fig; 8..

Referring to Figs-1 to 3 inclusive, the socket comprises aninsulating body of poreelain or other' suitable insulating material. This construction of body, switch mechanism andelectrical elements carried thereby is substantially the same as'that disclosed in. the application'of Charles E. Avery, Serial No. 287,689 filed June 23, 1928 and althoughmy improved; support for this socket was designed primarily for" this" construction and arrangement of socket it is not necessarily confined to use therewith. In this construction' the body member 10 is of substantially inverted L-shape, the upper or t-ransverse portion 11 thereofbeing substantially cylindrical, while the upright bodyporti'on is substantially semi-cylindrical, as shown in Fig. 3. This leaves an openside for the body. running throughout substantially the entire length of the body, and provides plenty of space for mounting the switch mechanism'12, not shown in detail, as it forms no part of myginvention, and the' cooperating elements, such as the pull .chain 13 for operating the switch with a step by step movement in a manner well known to pull sockets, and -thebracket l l carrying the stop guides 15' and 16'for' the chain. At the upper end of the body is-mounted the screw shell contact 17 which encloses the'usu'al central contact, not shown,'for receiving and engaging the' usuallamp' contacts in a manner "well known. Asthe' switch mechanism and related elements are allzflmounted on the forward open sideof the'body, the rcarxcircular' wall is left free for the connection to the This support or hickey 20 is threaded at its lower end 21 for threaded attachment with the threaded end 22 of the pipe or conduit 23, which is the usual pipe or conduit provided on this type of electrical fixture, and the hickey also clamps the finishing cup 24 to the pipe. The end of the hickey may be extended upwardly and over the end ofthe pipe, as shown at 25, to carry a set screw 26 adapted to engage the end of the pipe. and prevent looseningof the hickey in use. The support includes .anup wardly extending portion 27 which is provided with a longitudinal slot 28, preferably opening through the upper end thereof, as this construction facilitates application or removal of the socket construction. This upright portion of the support is preferably curved to correspond with the curvature of the body 10 and is 'seated in a longitudinal recess or channel 29 in the curved rear wall of the body 10 so that the outer surface of the support is substantiallyflush with the curved surface of the body; This support is adjustably secured to the body by means of a clamping screw 30 which has a tapered head 31. The screw is threaded into an eyelet or tubular rivet 32 inserted into the body, and its inner end may be covered with an insulating fibre plate 33 to insulate this insertfrom various electrical elements as the conductor 34 leading to the screw 18. This screw passes through the slot 28, and the tapered walls of the head thereof clamp against the side edges of the slot to secure the body in different adjusted positions on the support. .It will be apparent that the bindingaction of this tapered headon the opposite edges of the slot will tend to separate the sides of the support on opposite sides of the slot. I, therefore, mount in the. recess 35 ofthe body a metal guide member 36 which is curvedand has outwardly extending flanges 37 at its opposite ends to engage the side edges of thesupport 27 and will prevent their separating under the action of the screw. In case the body is made of porcelain or similar material this metal guide should be used because the porcelain is brittle and not sufliciently strongto be relied on for the purpose of preventing the sides of the support from separating, under action of the clamping screw. 7

In case, however, the body is made of bakelite or similar material which is much stronger and tougher and may be molded more accurately than the porcelain, this metal guide is unnecessary. This is the arrangement shownin Figs. 4, 5 and 6. In thisconstruction thebody 38 is molded of bakelite or similar material although it is substantially the same shape as the body 10 in the first form. This material is usually used for candle sockets of smaller constructhe first form and is mounted on the open side of the substantially semi-circular body portion the same as in the first form. Clamping screw 30 is threaded into an insert 39 molded into the body, and the tapered head 31 clamps against the opposite sides of the slot 28 in the support 27, the same as in the first form. As a matter of fact, this hickey and support is the same as that of the first form except that it is smaller in size. The upright portion of the hickey seats in a longitudinal recess or channel 40 formed in the rear curved wall of the body, and as indicated above,"because the material of which this body is made is much stronger than porcelain, the side walls of this recess are sufficientlystrong to guide the support 27 and prevent separation of the sides thereof under the clamping action of the screw 30.

The two socket constructions described above are pull socket constructions, that is they have a switch operated by a pull chain. In Figs. 7,8 and 9, I have shown how this support and hickey may be used for a keyless socket in which no switch is employed. In this construction the insulating block or body portion 41 is substantially cylindrical, but the substantially semi-cylindrical lower portion used in the first two forms is omitted because the switch mechanism is omitted. A metal bracket or support 42'is secured to the under side of this block and projects downwardly therefrom a suitable distance and is formed at its lower end with a guide 43 of substantially the same shape as the guide 36 of Figs. 1, 2 and 3, and which guide has flanges 44 engaging the opposite sides of the support 27 to provide a guide therefor and prevent separation of the side portions of the support 26 under the clamping action of the screw 30, which in'this case is threaded into a tapped opening in the inner or connecting wall of this guide. yThe bracket 42 may be mounted on the body by suitable eyelets 45 molded in the body and extending through and riveted over in the usual manner, or it may be secured by any other suitable means.

The rear curved wall of'this block or body 41 is also provided with longitudinal recesses or channels 46 to receive the support 27 the same as in the other forms. A fibre lining is shown at 47 enclosing the body and it may be extended down as shown in dotted lines to enclose the support.

It will be apparent from the foregoing de scription that the guide channel and the support 27 may be extended throughout substantially the entire length of the body, and that the slot 28 for the clamping screw 30 may also be extended, through substantially the entire length. This, therefore, gives a maximum adjustment for a given length of socket and gives a much greater range of adjust ment for the same length of socket than other types of adjustable supports for this type. of devices of which I am aware. It also perlnits the secure clamping of the body in any adjusted position, and it may be adjusted to any position throughout the entire range of adjustment.

Having thus set forth the nature of my invention, what I claim is:

1. In a candle socket,an insulating body member having a longitudinal recess in one side wall thereof, a support extending into said recess with its edges guided by the sides of the recess and providedwith a longitudinal slot, and a securing means mounted on the body and extending into said slot and adapted to press laterally on the sides of the slot to secure the body in adjusted positions onv justed positions, and guide means associated with said screw to engage the opposite side edges of the support to limit lateral movement of the si-d'esof the support under the action of said screw. V

In testimony whereof I afiix my signature.

HARVEY I-IUBBELL, J R.

the support, the edges of said recess limiting the movement of the support under the influence of the lateral action of the securing means.

2. In a candle socket, an insulating body member, a support having a longitudinal slot and extending along the outer wall of the body, and a screw secured to the body and having a tapered head engaging the opposite sides of the slot to secure the body in different adjusted positions, there being means to engage the opposite side edges of the support to prevent spreading of the support under action of the screw.

3. In a candle socket, an insulating body member substantially semi-circular in cross section, switch mechanism mounted on the flat side of said body, a support extending longitudinally of the body on the outer curved wall thereof and having-a longitudinal slot, and a clamping screw attached to said body and extending through the slot.

4. In a. candle socket, an insulating body member having a longitudinally extending recess in its outer wall, a longitudinally extending support in said recess and guided by I the side edges thereof, said sup-port being provided with a longitudinal slot, and a clamping screw having a tapered head in said slot and adapted to clainp against the side edges thereof, and a support for the screw secured to the body.

5. In a candle socket, an insulating body member, a guide member secured to the body and having spaced flanges, a support guided between the flanges and provided with a longitu-dinal slot, and a clamping screw associated with said guide member and provided with a tapered head in the slot to clamp against the side edges thereof.-

6. In a candle socket, an insulating body member, a support extending along the wall of said body and provided with a longitudi-' nal slot, a clamping means in the slot adapted to press laterally on the sides of the slot to secure the parts in different adjusted positions, and guide means for the support engaging the opposite sides thereof to limit lateral movement of the sides of the support a under the action of the clamping means.

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