US957261A - Attaching-plug. - Google Patents

Description

H. R, SARGENT. ATTAGHING PLUG. APPLICATION FILED @01.1, 1907.

'LL m5,

Patented Mag? 11); 1910.

Be it known" hat I, Howam a citizenvof the United States, residing at t ebody of the plug.

UNTTED sTATEs PATENT OFFICE.

HOWARD B. SABGENT, OF SCHENECTADY, NEW YORK, AS'SIGNOB T0 GENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK.

- armacnINe-PLUG.

To all whomit "may concern: l

R; SAnenN'r,

Schenectady, county of Schenectady, State of New York, have invented certain ne'w and useful Improvements in Attaching-Pings, of which the following is a specification.

This invention relates to devices fol-.makin connections in electric `circuits, and its ob]ect is to simplif ,the construction and provide greater Vsa eguards 'against -overloads in attaching.plugs. Y

The invention consists, in brief, cfa plu havin a removable Vinclosed fuse in "eac side ,o thecircuit, andra removable cap caring contacts which cooperate with clips in In the accompanying drawing, Figure 1 is a plan view of the body of an attaching plug embodying my invention; Fig. 2 is a longitudina central section ofthe entire plug; Fig. 3 is a plan view of the cap; Fig. 4 is a perspective view of one of the contacts on the cap; Fig. 5 is a perspective view of one of the clips Fig. 6 is a perspective view of lthe phragm which covers .the fuses. c'

The body 1, cap 2 and diaphragm are made preferabl of Amolded insulation, such as orcelain. he body has a cylindrical nec 4 rovidedwith a4 screw-threaded media- .tallic s eeve 5 .having an internal flange at 'its outer end which is clamped by a Washer 6-of insulation placed against the end of the neck and secured by a long screw 7 which passes centrally through said neck` and engages with a tapped hol'e in a bar 8 of hard rubber or b'er extending diametrically across a recess, formed in the 1. A. metallic washer 9 is placed under the head of the screw 7. A diaphragm 3 preferably of orcelain, fits easily into the recess in the body and rests upon -th e bar 8 being ,secured in place b a screw 10 passing throu h a central ho e 11 in said-d1aphragm an er;n re

a 'n with a ta ped hole in the bar 8, raglilyg the same gicle as that into whic the screw 7 enters. The space between the dialhra and the bottom of the recess is thus ivi ed by the bar 8 into two separate chambers. An inclosed fuse 12 `12..-1s located in each chamber. The fuses are of the cartrid type and are held at each end in the resi lent )aws of a clamp 13 '14 15 16 which peoicatlon of Letters Patent. application aleaomhsr i, 1901. serial lo. 395,457.

in the body of the plug, and

Patented May 103910,-

allow them to be easily inserted and removed when desired. The clamp 13 in one chamber is suitably connected with the. metallic' sleeve 5, while the clamp 14` in the other chamber is connected with 'the central screw!I 7 the sleeve and screw forming the contacts for connecting said clamps with the termi nals of a circuit when the into a line receptacle. The c amps 15 16 are in line, respectively, with the clamps 13 14, and each one has a clip 17 18 extending respectively toward openings 19 20 in the diaphra 9. The preferred construction of the c amps 15 16 and their clips is shownin Fig. 5, where the clamp and clip are seen to be V-shapedf pieces of axes at right angles. An L-shaped metallic plate 21 is laid in the bights of these two pieces and a fastening screw 22 is tapped into said plate, through a hole in the body 1.

The cap 2 has a central hole, 23 for the entrance of a conducting cable Whose terminals can be secured by binding screws 24 to lates 25 attached to theinside of the cap an having preferably integral Contact blades 26 27 f which are adapted, when the cap is put on the body, to pass through the openings 19 lug is screwed- 20 and engage with the clips 17 18, respectively.

The construction is exceedingly compact and symmetrical, and yet affords ample protection against short-circuiting. The double fuse feature gives an especially ood rotcction against overloads, and if a use b ows it can be readily replaced by an unskilled p Person.

What I claim as new and desire to secure` by Letters Patent of the United States, is:

1. An attaching plug `having a recessed body divided into two chambers, a line ter minal -in each chamber, and a removable inclosed fuse in each chamber.

2. An attaching plug having a recessed body divided into two chambers, a line` terminal in each chamber, a removable inclosed fuse in each chamber, and a perforated diaphragm covering said fuses but affording access to said terminals.

y3. An attaching plug having a recessed body divided into two chambers, a line terminal in each chamber, 'fuse in each chamber, a perforated diaphragm covering said fuses but affording access to said terminals, and .a removable cap a removable inclosed Carrying branchline terminals adapted to ygass through saitl diaphragm.

e, in attaching plug having a recessed body, a' transverse bar of insulation therein dividing .it`into two clian'ibers, a pair of clamps in each chamber, a removable inclosetl fuse received in each pair ol clamps, clip in each chamber connected. with one oil said clamps, and a cap carrying contacts to engage with said clips.

5. An attaching plug having a recessed body, a bar olf' insulation dividing said recess into two chambers, a diaphragm secured to said bar7 a pair o clamps in each charnber, an inclosed fuse removably held in each pair ot clamps7 a clip in each chamber connectetl with one of said clamps, a cap having a hole for a cable, and contact blades inside clips for a horizontal inclosecl fuse, one plate in each chamber being connected to one of said terminals, and a cap for the chambered part of the body.

In witness whereof7 I have hereunto set my hand. this 27th (lay oi beptembcr. 1907.

'HOWARD R. SARGENT.

Witnesses 1 BENJAMIN B. HULL, HELEN Onronn.

Images