US835504A

US835504A - Bend, elbow, and other angle-piece for electric conduits.

Info

Publication number: US835504A
Application number: US26862905A
Authority: US
Inventors: David Musgrave Edwards; Ernest Argyle Brown
Original assignee: Conduits & Fittings Ltd
Current assignee: Conduits & Fittings Ltd
Priority date: 1905-07-07
Filing date: 1905-07-07
Publication date: 1906-11-13
Anticipated expiration: 1923-11-13

Description

'No. 835,504. PATENTED NOV. 13, 1906. D. M. EDWARDS & E. A. BROWN.

BEND, ELBOW, AND OTHER ANGLE PIECE FOR ELECTRIC GONDUITS.

- APPLICATION FILED JULY 7. 1905.

UNITED srnrns PATENT rich.

DAVID MUSGrRAVE EDWARDS AND ERNEST ARGYLE BROWN, OF KILBURN.

ENGLAND, ASSIGNORS TO GONDUITS & FITTINGS, LIMITED, OF KIL- BURN, ENGLAND. I

BEND, ELBOW, AND OTHER ANGLE-PIECE FOR ELECTRIC CONDUITS- Specification of Letters Patent.

Application filed July 7,1905, Serial No. 268,629-

No. 835,504. Patented Nov. 13, 1906.

which is provided with a series of lugs c c, as shown in Figs. 1 and 2, for allowing of the parts being connected to ether by screws or the like. The parta of t e fittin which for convenience of description we wil refer to as To all whom it may concern.-

Be it known that we, DAVID MUSGRAVE EDWARDS and ERNEST ARGYLE BROWN, subjects of the King of Great Britain, residing at 80 Salusbury road, Kilburn, Middlesex, Engthe lower land, have invented new and useful Improvements in Bends, Elbows, and other Angle-Pieces for Electric Conduits, of which the following is a specification. This invention relates to. bends, elbows, T.s, and four-way and other like fittings, and to that class of such fittings which are divided longitudinally so as to permit of one art being removed in order to allow of passing electric-light and other wires through conduits connected with the said fittings.

Hitherto such fittings have usually been divided into two equal parts, the result being that when after the ordinary straight conduits have been screwed or inserted into the ends of the fittings one half of the fitting is removed there is a liability of the other half of the fitting dropping out of position.

The object of this invention is to rovide means for obviating the liability of t e bend or like fitting becoming detached in case the cover portion is removed and to this end the present invention consists in dividing the fitting unequally or so that-the socket ortions intowhich the ipes are screws or fitted will be greater th thus be duits. I

To enable the invention to be fully understood, we will describe the same by reference to the accompanying drawings, in Which- Figure 1 is an elevation of a bend-fitting constructed according to the invention. Fig.

2 is a plan of the same, and Fig. 3 is an end view. Fig. 4 is a section on the line 4 4, Fig. 2. Fig. 5 is a side view of one end of the fitting; and Fig, 6 is a similar view, but showing the arts separated. Fig. 7 is a plan view ofthe ower part of Fig. 5, and Fig. 8 is an underside view of the upper half. Figs. 9 and 10 are views similar to Figs. 3 and 5, respectively, illustrating a modification of the invention; and Fig. 11 is a Fplan View of this modified form of device. igs. 12 and 13 are views similar to Figs. 7 and 8, respectively, showing the inner surfaces of the two parts shown in Figs. 9, 10, and 11.

a l) are the two parts of the fitting, each of an half a circle, and prevented from falling off the con' art, has formed upon the edges with which the other or upper part 6 makes contact ribs (1, designed to fit into or interlock with corresponding-grooves 6, formed in the upper part b, as shown in Figs. 3 and 4,110 permit of placing the two parts in their proper position and also for forming a good joint for preventing the entrance of water.

The socket ortions f f of the fitting'are made of larger diameter than the intermediate portion, so that when pipes are inserted into the sockets ff the inner surfaces thereof will be flush with the inner surface of the intermediate portion of the tubular passage in the fitting, and thereby obviate the formation of led es which might injure the cables or wires as t ey are drawn through.

The dividing line between the parts a and I) does not pass through the center of the sockets, so that a pipe inserted into the socket will be retained in the part a notwithstanding that the part b is removed. The inter-- t he fitting between the. sockets may be divided upon the central" mediate portion of line, as shown in Figs. 4, 5, and 6, transversely-extending shoulders g g, Figs. 5 to 8, being thereby formed, which when the two parts are placed in position prevent the longitudinal movement of one art upon the other and insure the placing oi the two parts in their proper position.

Ne sometimes modify the construction hereinbefore described by forming the ex.- treme end of each socket as a complete circle without any division, as illustrated at h, Figs. 9 to 12. It will be obvious that when the pipes are screwed into the fitting thus formed there will be no possibility of the fittin becoming detached from the pi es.

In practice the bridge iece h at vantageously covers about two-t iirds of the length of the thread of the pipe socket, so that the upper part b of the fitting, which is screw-threaded internally, as shown in Fig. 13, can be tightly jointed'on-thc on of the pipe which is screwedintothe part it.

though we have onlyficscribed our invention as applied to a bend, it will be obscrcwed into une eat vious the-t equeng' ep'pheeble to elhovtu, my pieces end other fittings to whn'wh eonduite ere conned/ed What We clean is-- A 0011 fling i'or conduit-pipes provided at each en with an internedly-threeded pipeengeging socket and formedof two members divided from each other hmgitudineliy throughout the length of the 0011; plane of it n nar Etna; he movement of one With respect to the other, substentlelly as descnbed.

DAVID MUSGRAVE EDWARDS. ERNEST ARGYLE BROWN.

Witnesses:

JOHN E. BONSFIELD,

ALBUTT.

0f the parts and to prevent the 10ngitudi-