Патент USA US2138191код для вставки
Nov. 29, 1938. J. D. NoYEs 2,138,191 ELECTRIC CIRCUIT CONTROLLING DEVICE Filed Feb. 3, 1956 2 Sheets-Sheet l nls. . mìI.a. r f v2. l l l INVENTOR. "f2 w s \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ ATTORNEYS. NOV. 29, 1938. J. D NOYES 2,138,191 ELECTRIC CIRCUIT CONTROLLING DEVICE Filed Feb. 3, 1936 2 Sheets-Sheet 2 /îâ la# 9 /7/ o " Y ' :o ,'18 y E ' ` _ 70h72 v INVENTOR. @1, .92'0 es Bills», ATTORNEYS. 2,138,191 Patented Nov. 29, 1938 UNITED STATES PATENT', OFFICE ‘ 2,138,191 ELECTRIC CIRCUIT* CONTROLLING DEVICE John D. Noyes, Detroit, Mich. Application February 3, 1936, Serial No. 62,115 2 Claims. The present invention relates to electrical cir cuit making and breaking devices andY relates more specifically to devices taking the place of and of greater efficiency and convenience than the ordinary pothead. Among the objects of the invention is a high voltage cable connection device in which all live parts are shielded at all times against accidental touching. 10y Another object is a device of the kindindicated in which all the working parts are enclosed in a water-tight casing with operating means extend ing tothe outside thereoi'.` Another object is a device of the kind indicated which may be assembled completely and put in place before making or breaking any circuits. Another object is a device of the kind described which is of relatively small size and therefore more conveniently installed and operated in the 20 somewhat restricted spaces in which such de vices are usually used. Still otherk objects and advantages will be ap parent to those skilled in the art upon reference to the following description and the accompany 25 ing drawings in which Figure 1 is a longitudinal vertical section through a three element connector, it being un derstood that a smaller or greater number may be used. Figure 2 is a, Vertical section on line 2-2 of 30 Figure l. Figure 3 is a horizontal section on line 3-3 of Figure l. Figures 4 and 5 are diagrammatic illustrations 35 of modiñed forms of the device. vReferring now particularly to Figures 1 to 3 of the drawings, a preferredA form of embodiment of the invention will be seen to comprise a. cas ing I0 capablek of being tightly sealed by means 40 of suitable ñanges and bolts or screws II. This casing I0, in the form shown, has its upper por tion divided into four compartments by sheets or plates of insulating material I2 which also line the front and end walls of the casing. Three 45 of the compartments of substantially the same size occupy the front portion of the casing while the fourth extends along the back, the compart ments being separated from each other by the plates I2. 50 The top I3 of the casing is also lined with a plate or plates of insulating material I4 having a small opening I5 centrally located over each of the three front compartments and mounted upon the top I3 over each opening I5 is a bell 55 member or casing extension I6 secured to the (Cl. ZOU-151) top by any suitable means. These members I 6 also are lined for a portion of their length with insulating material I1 as shown. Further, these bell members I6 are preferably provided with re movable upper ends or caps I8 through which ex tend the ends of conducting cables or wires I9, means being provided to render the joints suf iiciently tight to prevent entrance of Water. The means shown is a screw nipple 20 to which the cable armor is secured as by a lead burned joint 2I . Within each bell I6, and supported- by a suit able means such as a ñange 22', is an insulated blade-carrying contact 23, the lower end carry ing the blades 24, being placed above butin line IU with an opening I5, and the upper end provided with means for making aL suitable permanent connection with cable I9. The insulator for contact 23 is shown at 25. Mounted within the rear compartment of cas m ing> Il) are iixed contact members 30 carried in suitable insulators 3l and having blades 32' ex tended forwardly through insulation I2, each into one of the front compartments in substan tial alignment with an opening I5, buty below and to the rear of such opening. Each of the members 30, by means of a suitable plate 32a is` connected to a tap lead wire or cable 33 leading from one of the main leads o1’V conductors 34 ex tending lengthwise of the casing in the lower 30 part of the rear compartment, a suitable trough therefor being indicated at 35. At each end of casing I0 opposite the trough is a flanged tubulated opening 40, this serving toy admit the armored end of the (in this form) 35 three-wire main cable 4I containing the con ductors 34, and providing meansk for the forma tion of a water-tight joint in the leaded flange 42, the latter being bolted or screwed to the casing ñange. 40 The mains 34 may and ordinarily will con tinue through the casing ID, being tapped as mentioned above, and supply current to each of the members 30. The conductors I9 of course extend to what 45 ever circuits the device is intended to supply and means is provided within the casing I0 for estab lishing a connection between blades 32 and blades 24. This latter means comprises in the preferred 50 form an insulating block member 50 carrying a T-shaped conductor blade 5I of which one end of the cross bar 5Ia is embedded or otherwise "secured in block 50 while the stem 53 of the T extends toward the rear and is provided with an 2 2,138,191 insulating shield or barrier member 52. This T-shaped member is so placed on block 50 and is of such dimension that, when stem 53 is be tween the blades 32, the upper end of 5| is be tween blades 24. The blocks 50 are preferably extended laterally and contain openings to receive the guide rods 60 upon which the blocks slide and are maintained in alineinent with the blades 24 and 32. These 10 rods 60 are, as indicated, ñxed to the bottom o'f the housing I0. Means is also provided for moving the blocks Gü and T-shaped members without the necessity of opening housing I0. This means comprises a 15 shaft 10 journaled in the ends of the housing and extending from one end through a suitable gland 1| and provided with means such as a handle or lever 12 for rotation. This shaft 10 carries arms 13 fixed to it, each two arms extending to a block 20 Sil. Each arm has a slotted end or elongated eye 14 cooperating with a pin 15 in the block 5U so that movement of handle 12 raises blocks 50 to circuit-completing position or lowers them to circuit open position. 25 It will be noted that the contacts are brought together and separated behind ample barriers, the contacts 5| and 24 being made and broken within the domes I6 outside of the main housing, while contacts 53 and 32 are made and broken 30 behind the large barrier 52 with the conductors 33 outside of the insulated compartments. It should be noted that while the preferred form of the device shows three taps, a greater or less number may be used without material modiñcation. Figures 4 and 5 show diagrammatically some what modified forms of the invention. In Figure 4 the casing | |0, domes | |8, and sta tionary contacts |24 and |32 may be similar in 40 construction to the corresponding parts of the preferred form and are shown more or less con ventionally. The circuit-completing member |5| is however ~ shown as of U-shape with one leg |5|a longer one of the stationary contacts 232 whether or not the end 233 contacts with the other stationary contact 224. In this form, the member 25| may be hollow with spring ñngers 225 sliding upon contact 232 which is of considerable length and telescopes into member 25|. Also in this form no guides are needed as the telescoping arrange ment of parts 25| and 232 can be made of such form and proportions as to be suflicient for the 10 purpose. The member 25| is indicated as being operable through a suitable handle lever 212. What I claim is: 1. A device of the character described compris ing a sealed housing including a main casing, 15 insulating partitions in said casing dividing the space therein into at least two chambers, an extension casing removably añixed to the main casing and separated therefrom by an insulating member provided with a relatively small opening, 20 a stationary contact member mounted in one of said chambers and projecting through the par tition into the other chamber, a stationary con tact member mounted in said extension casing opposite said opening, a movable contact member 25 in said other chamber adapted to be moved into contact with the ñrst stationary contact and project into said extension into contact with the Second stationary contact, ñxed baffle portions shielding each of said stationary contact members 30 and arranged at an angle to each other, and a movable baffle adapted to travel with said mov able contact member into and out of abutting relation wit-h respect to said ñrst mentioned baf ñes, in a path between said batiles, and means 35 projecting from said casing for moving said mov able contact member. 2. A device of the character described ‘com prising a casing, an electrical conductor leading into said casing and sealed thereto at the point of entry, a ñxed contact member in said casing and connected with said conductor, an extension ñxed to said casing in sealed relation and 'con taining a second ñxed contact member, a mov 45 than the other |5|b, these coacting respectively with contacts |24 and |32. The member | 5| is carried at the end of a swinging arm |13 pivoted or hinged at |13a, and having its ends separated able contact member in the casing having a por 45 tion movable into contact with the ñrst contact by an intermediate insulator portion |1317. The member, a barile plate dividing said casing ex tension from the main 'casing and provided with 50 50 arm |13 is indicated as operable by means of a pump handle |12 mounted on the top of casing Hä and connected to arm |13 through links |10, one of which passes through a suitable packing gland 51|. In this form, each member |5| may 55 have an operating handle or several may be op erated by the same handle as in Figure l. Suit able guides (not shown) will of course be pro vided. Figure 5 is a diagrammatic showing of still 60 another form but in this the movable circuit completing member 25| remains in contact with member and a portion projectable into said ex tension into contact with said second contact a relatively small opening for the passage of said projectable portion, a baffle carried by said mov able contact member, and a fixed bafile shielding the fixed contact member in the casing, the baf ile carried by said movable contact member being 55 movable into and out of abutting relation with at least one of said other bailles and means oper able from without the casing for moving said movable member to and from contact making position. ' JNO. D. NOYES.