US1193253A - Office - Google Patents

Description

A. i; FROMAGER 6L J. F. SIX.

SWITCH BLOCK AND CASING.

APPLICATION FILEDV 1M/14. 1915.

vPatented Aug. 1, 1916.

2 SHEETS-SHEET l 57? JESEPH Eau/'MN5 Szx Inverno" Allomeys me Nonms uns co raam-uma. wuumamu. n c.

A. I. FROMAGER & I. F. SIX.

SWITCH BLOCK AND CASING.

APPLICATION FILED MAY I4. I9I5.

(ze 2A LfRT S/BOJPE .Paw/agri? Inventors Witness:

JOSEPH 71E/wauw 51x um Namux vergas no., unam-uma. usmNcmN. v. c.

TED STATES PATENT FFCE.

ALBERT ISIDORE FRGMAGER AND JSESJ FERDINAND (S F MONTREAL, QUEBEC, CANADA.

SWITCH-Bl Gli 1 ,1931,253 Speeneaticn of 'o @Hicham t may concern Be it known that we, jtnnnnr Isinonn Fuo- Mnenn, a subject oi the King oi? Great Britain, residing at No. 8 Laval avenue, Montreal, Province oi Quebec, Canada, and Josnrn FERDINAND SIX, a subject oi the King of Great Britain, residing at No. Joliette street, Montreal, Province of Quebec, Canada, have invented certain new and useful improvements Switch-Pinche and Casings; and we do hereby declare that the following is a full, clear, and exact description oil the invention, such as will enable others skilled in the art to which it appertains to make and use the saine.

The invention to be hereinafter described relates to switch blocks and casings.

In order to more clearly disclose the ccnstruction, operation, and use of the invention, reference should be had to the accompanying drawings forming i irt of the present application.

Throughout the several figures of the drawings like reference characters designate the saine parts.

In the drawings: Figure 1 is a tol plan View of the block with the casing removed, partly broken away; Fig. 2 is a side view of the saine partly in section; Fig. 3 is a .fragmentary underneath view ci the block with the casing removed; lFig. l is a section on line Ll-i of Fig. Q looking in the direction oit the arrows; Fig. 5 is a top plan view of the casing and block; and Fig. G is aseotion on line 6 6 of Fig. 5 looking in the direction of the arrow. y

The main objects ci the invention areto provide a compact and eillcient switch block ttor electric circuits and a casing ilor the saine which cooperate so as to eliectually prevent stealing et the electric current by shunting it from the main line around the meter to the house circuit, and which will permit ready access to the switch block for the insertion oi new fuse plugs.

The block 1 of approximately rectangular' shape, of porcelain or other suitable insulating material, is provided along each side with a deep groove 2. A copper sleeve 3 is mounted in cach groove 2, near the upper end thereof, and tightly threaded into thV outer ring la olf a copper strip il. A brass .contact screw 5 is passed through the inner end ol' strap l and provided with the usual nut which is held in tight engagement with ygroove 2.

Ain the usual manner.

AND C. SING.

the strip so as to establish a close connection between the saine and the screw 5. The head of screw 5 is ilat and is centrally located in the bottoni ci a fuse socket jtermed in the iace of the block, as is usual.

fr rod 7 oic copper, or other suitable niaterlal, having a' tapered inner end, is slidably mounted through each sleeve 3 and the outer ends of these rods are bent inw( rdly at right angles and secured to a common beam S of non-conductive material the upper ends ofthe rods and the securing nuts therefor being covered by a casing or shell 9 of suitable insulating material. T he rods 'l' are made a close fit over the sleeves 8 so as to be in close frictional contact with the interiors thereof.

A copper tube 10 ci the same interior diameter as the sleeves 3, and in alinemei'it tlierewith, is secured in the lower end of each A binding screw 11 is threaded through block 1 into each tube 10 and engages one of the wires 12 of the main circuit so as to hold kthe saine in close engagement with the tube. The tubes are so spaced, relatively to the sleeves 3, that, when the rods 7 are forced inwardly 'their greatest distance the inner ends snugly into the inner ends of the tubes 10 and lthus establish electrical connection between lthe main line wires and the copper strips Li.

ln the upper face of block 1, at the central portion thereof, there are two parallel grooves 13 extending from the centers of the Jruse plug vsockets to the bottom or end of the block.` ln thc upper end oi each groove 18 there-is a short copper sleeve 14rthe upper end of which is threaded irto a thread band 15 tlu'ough which is threaded the usual thread collar of the fuse plug socket, the band also being set in the block rlhe switch plug 17 is threaded into the collar 16 until its lower center Contact engages the head of screw 5, in the usualmanner. .frblock 1S of brass, or other suitable material, is threaded on the outer end of each sleeve 1l and secured on a recess in the block by meansV cfa short anchor screw threaded into the under face thereof from the back oi the block.

il. tube 19 is secured in the outer end of each groove 13, by means oi a block 20 th readed on the inner end thereof similar to block 18. A rectangular copper plate 21 is secured on the outer end ol each tube 19 and is electrically7 connected to one wire 22 of the house circuit. Close fitting rods 23 similar to rods 7 are slidably mounted in tubes 19 and have their outer ends connected by a beam 2l similar' to beam S. Bv lorcing` beam S inwardly so as to bring rods T into contact with sleeves l0, and forcing beam 2l inwardly so as to bring rods 19 into contact with sleeves ll, the main and the house circuits are completed in the usual manner.

The block l is inclosed in a steel casing 25 from which it is suit-ably insulated. An integral rib 2G is provided along` each side of the casing; near the top thereof. These ribs form; with the top, U grooves in which are slidablv mounted steel panels 27 and Q8. The upper panel 2T is secured to the beam S and is provided with a grip knob 29 operative in short slots 30 in the top or" the casing adjacent an opening 3l above the fuse plugs 1T, which is provided to permit renewal of the fuses when the same have been burned out. The knob 29 is so located on plate 2T that both ot' the slots 30 will be completel)v closed before the rods 7 enter sleeves l0. This eliminates anv danger' of lire from sparking. Plate Q8 is secured to beam 2l so that. when this plate is forced inwardly by means of knob 32 operated in a slot 33 through the top oi the casing, the house circuit is closed.

A partition 34; is provided across the casing, at the outer ends of sleeves lst, and completely closes the upper part of the same. B v this means the connections of the line and house wires are secured against being tampered with, while access to the fuse plugs is permitted. This efectually prevents the current being carried from the line wire around the meter, as it is impossible to connect to the line wire without being detached. The line wires and the house eircuit wires are protected, where they pass through the casing Q5, by suitable tubes It is thought that the construction, operation, and use of the invention will be clear from the preceding detailed description.

Changes may be made in the construction, arrangement, and disposition' of the several parts of the invention, within the limits of the claims, without in any way departing from the field and scope 0f the same, and it is meant to include all such within this application wherein only a preferred form has been disclosed.

Having thus fully described our invention; what we claim as new and desire to secure b v Letters latent is:

In a device o't the character described; a closed casing provided with an opening through its top and slots communicating therewith; near one end, and a slot near the other end, and a transverse partition at its approximate center; a block ot insulating material mounted therein and insulated therefrom said block being provided with grooves and fuse plug sockets in its upper race and grooves in its sides; threaded collars secured in the upper ends of the said plug sockets; sleeves secured in the inner ends of the grooj'es in the upper face of the said block and electricallv connected to the said threaded collar; tubes secured in the outer end of the said grooves in alinement with the said sleeves and adapted to be connected to the opposite sides of an electric circuit: conducting rods slidablv operative therein to make contact with the sleeves in the inner ends ot' the grooves: a beam ot insulating material connecting` the said rods at their outer ends; a slidablv operative plate secured thereto and adapted to be operated from without the casing: a tube mounted in one end of each of the said side grooves of the block and adapted to be connected to one side of an electric circuit; sleeves mounted near the other end of the said grooves in alinement with the said tubes; copper strips connected to the said sleeves at their outer ends; contact screws secured through the inner ends thereotl and having their heads centrally located in the bottoms of the said fuse plug sockets; conducting rods slidably operative through said sleeves to make contact with said tubes; a beam of insulating material secured to the outer ends ot' said rods; and a plate slidably operative within the casing and secured to the said beam; the said plate being adapted to be operated from without the said casing.

Tn witness whereof we have hereunto set our hands in the presence ot two witnesses.

ALBERT SDORE FROMGER. JOSEPH FERDINAND SIX.

\Vi.tnesses A. Bas'rmN, T. MYNARD.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

` Washington, D. C.

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