US1731775A - Hanger - Google Patents

Description

Oct. 15, 1929.

l i l I l I l I l W. A. HEINRICH HANGER Filed May 3, 1926 Patented Oct. l5, 1929 UNITED STATES PATENT OFFICE WALTER A. HEINRICH, OF ST. LOUIS, MISSOURI, ...ASSIGNOR TO W. N. MATTHEWS CORPORATION, F ST. LOUIS, MISSOURI, A CORPORATION -OF MISSOURI HANGER Application filed May 3,

This invention relates to switch hangers, and with regard to certain more specific features to safety hangers for demountablysupporting switch arms, fuse cartridges and the '5 like.

l Among the several vobjects of the invention may be .noted the provision of a hanger for supporting fuses, switch arms and the like, which is adapted to positively Aand safely sup- 10, port a circuit breaking member in position, yet permit easy demounting of the same; and the provision of a hanger of the class described which is adapted to support a fuse carrying member in a proper water deflecting llf position. Other objects will be in part obvious and in part pointed out hereinafter.

The invention accordingly comprises the elements and combination of elements, ,fea1 tures of construction, and arrangements of parts which will be exemplied in the structure hereinafter described, and the scope of the application of which will be indicated in the following claims.

In the accompanying drawings, in which are illustrated two of various possible embodiments of the invention,

Fig. 1 is a side elevation of a preferred form of hanger, parts being shown in section;

Fig. 2 is a side elevation of a modiiied form of the device; t

Fig. 3 is an enlarged perspective view of a contact assembly;

member; and,

Fig. 5 is a perspective view of a switch bar which is adapted to be applied to the hanger.

Similar reference characters indicate corviews of the drawings.

Referring now more particularly to Fig. 1, there is illustrated at numeral 1 a U-shaped channel iron support adapted to be fastened to a cross arm 3 by means of a shackle 5, the legs of which shackle passing through the web of the channel support. The legs 7 and 9 of the support 1 are preferably of unequal lengths and are adapted to support depending insulators 11.

Each insulator 11 comprises a porcelain Fig. 4 is an enlarged plan view of a hinge responding parts throughout the several 1926. Serial No. 106,287.

body having water deiecting and surface i11- creasing ridges 13. At each end of the body 1s provided a recess 15 adapted to loosely receive a metallic anchor 17. Each anchor 17 comprises ribs 19 and an end flange 21, and 55 is cemented into its respective recess. Hence each anchor 17 is prevented from pulling out or twisting from its insulator. The anchors 17 are tapped out to receive cap screws or the like for purposes of external fastening. 6o Openings 23 formed in the anchors rovide means for keying them to other mem ers, as will be described. Y Each arm 7 and 9 carries an insulator assembly 'abutted thereto and held by a cap 65 screw passing through an opening in the re spective arm. Other openings in the arms corresponding to said openings 23 in the anchors 17 are adapted to align with the openings 23. Keys 25 are caused to be positioned 70 in the pairs of aligned openings whereby the insulators 11 are prevented from twisting out of a predetermined position. The keys have preferably a force lit or the like in the anchors.

The upper and lower insulator assemblies have channel iron extensions 27 and 29 fastened thereto respectively (in the manner described).l These extensions 27 and 29 are provided with parallel ears 31 and 33 respectively, adapted to support contacting clips 35 and 37.

Each contacting clip comprises va pair of cooperating U-shaped spring members 39 held in contact with a terminal block 41 by 85 means ofA a stud 43 (Fig. 3). The stud 43 serves also to hold the clipfblock assembly 39, 41 to its respective arm 27 or 29. Each` inner spring member of the pair 39 is provided with a guiding flare 45. Below this flare is formed a pair of crimps 47 for purposes of holding the block or thelik'e which is adapted to be positioned between the tines ofthe inner spring member.

Between the lower clip 37 and its supporting arm 29 is clamped'an open member 49. This member49 is held in position by means of the stud 43 of the clip-block assembly. The member 49 is more particularly detailed in Fig. 4. It comprises a flat portion (100 i 51 adapted to cooperate with the end of its supporting arm, in which arm is formed an opening 53 for the insertion of the stud 43. A pair 'of wings 54 are provided to prevent twisting of the hinge member on its respective arm. Extending outwardly from'said flat portion 51 is provided a pair of legs 55 having each a lostsmotion recess 57, adapted to receive certain gudgeonv pins 59 formed with the fuses or switch arms to be described.

The type of fuse adapted togbe mounted in this device comprises, primarily, contacting blocks 61 and 63 formed and adapted to engage the contacting members 35 and 37 (to be resiliently held therein Vby means of the crimps 47). The blocks 61 and 63 are.

mounted on an insulating tube 65 and are electrically connected by means of afuse wlre 67 or the like which passes through/said tube. The fuse wire 67 passes out ofvthef lower open end of the block 61. The block' .63 entirely encloses yits end of the `wire 67. A bridge portion 69 is formed integrally with the block 63 vfor purposes .of applying a tool thereto for removing and'replacing the entire fuse block. r f

Application of the fuse is accomplished by positioning the pair of gudgeons 59 in the lost motion recesses 57. This `can be done when the fuse is in a more or less horizontal position before contact ishad with the terminalclips of spring members 39 by entering the gudgeons into the recesses from the rear and. from the upper ends of said recesses. Next the fuse is swung upwardly into position, whereby the proper portions of the blocks 61 and 63 are positioned between the tines 39 of the spring contacts. The lost motion recesses 57 permit of the proper amount of play required for properly positioning the` fuse in its contacts and at the same time permit ready entry of the gudgeons 59 in their respective recesses. The-lineor other wires are put into electrical contact'with the fuse by fastening them at the screw sockets 71. It is evident that the ridges 47 prevent the fuse from falling out of the clips. The supporting legs v55 prevent falling ofthe fuse even though it should be loosened vfrom contacts by some external force.- The fuse can only be removed from the hanger by *manually and forcibly pulling it ldown and .lifting it from the member 49. This comprises a con-'- trolled action, not one which would be likely to occur accidentally. Vlhen the fuse blows,

burned gases and the' like areengeiidered and are project-ed from the lower open end thereof, with the result that there is a tendency for X the fuse block uto be projected or rocketed upwardly and longitudinally out of the spring clips. The reason for clearing the fuse of gases is not apart Vof lthis, invention perse and is therefore not described in detail.` llVithl the present construction this projecting contmgencyis guarded against, because the legs clamps therefor. No insulator clampsare 'used in this invention and the liability of dropping any part of the assembly because of breakage is greatly reduced. This also is an important 'safety feature.

In Fig. 2 1s illustrated a modified form of 'i the device for purposes of underslinging the fuse. In this modification the U-sha ed member 1 has a straight member 73 su stituted therefor. This member 73 is adapted to have a shackle 75 adjustably fastened thereto, and is adapted'to, have -insulators'll also fas- .tened thereto, manner described with' jrespect 'to a'v thi-rd i'orm. These insulators have brackets 77 and`7 9 (of unequal length)` fastenedthereto. V'The brackets 77 and 79 are providedl with parallel ears or extensions 81 and 83 adapted to havethe contacting clips fastened thereto.v The elements of the modied form which are duplicates of elements nof the preferred form'v bearthe samel numerals in the drawings. The difference between the may be substitutedfor the fuse member shown z inFigs. 1 and 2. This switch bar has squared prevented from entering the insulat two forms resides chiefly in the manner in f or flattened contacting ends 87 corresponding` tothe fuse blocks 61 and 63 for the purpose of holding the barwithin the tines of the spring contacts 35 and 37. It may be here remarked that the fuse blocks have corresponding squareor attened portions adapted .to flatlyI engage the tines of the clips.- The switch bar 85 also ,carries aV bridge kmember 89 corresponding to the said bridge member 69. At its lower end is provided an extension 91 which carries gudgeons 93 serving the described purposes. Either a fuse block or av switch arm may be applied to the hanger assemblies illustrated in Figs. 1 and 2. There is no tendency for the switch arm 85'to be projectedl longitudinally from the contacting members. It is however positively prevented from falling because of the improved insulator mountings and the presence of the ridges 47 in the contact member. A In view of the above, it will be seen that theV several objects of the invention are achieved y and other advantageousvresults attained.

' As manly changes could be made in carrying out the a ove constructions without-depart ing from`the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

I claim:

1. A hanger for fuses and the like comprising means for supporting a plurality of contacting clips for resiliently holding a circuit closing member, a hinge member associated with one set of the clips adapted to permit hinging application of the circuit closing member, saidhinging member comprising a pair of legs each having a recess adapted to receive gudgeons associated with the circuit closing member, means for applying the gudgeons to said recesses'from the rear so as to prevent contact by the circuit closing member with said clips during said application, the hinging member permitting subsequent swinging of the circuit closing member into contact with said clips and said legs being so formed that by cooperation with the gudgeons, longitudinal movement yof the circuit closing member is prevented when the latter is in closed position within said clips.

2. A hanger for fuses and the like comprising means for supporting a pair of contacting clips for resiliently holding a circuit closing member, a hinge member associated with one Vset of the clips adapted to permit hinging application of the circuit closing member, said hinging member comprising a pair of legs each having a recess adapted to receive gudgeons associated with the circuit closing member, means for applying the gudgeons to said recesses from the rear so as to prevent contact by the circuit closing member with said vclips during said application, the hinging member permitting subsequent swinging of the circuit closing member into contact with said clips without pushing the gudgeons from the recesses, and said legs being formed so as to have portions positioned across the path of incipient movement in either direction of the gudgeons during electrical action of the circuit closing member, the. longitudinal movement of the circuit closing member being thus prevented, the resulting hook shape of the legs functioning to gravitationally suspend the circuit closing member when it is not in circuit closing position.

3. In 'a switch of the class described, contacting clips comprising spring members adapted to flatly engage the fiat sides of a circuit closing member, upward guiding fiares formed`by the spring members, crimps below the flares, whereby means is provided for guiding the Hat sides of said circuit closing member through the crimps and to a seat between the spring members.

In testimony whereof, I have signed my name to this specification this 30th day of April, 1926.

WALTER A. HEINRICH.

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