US1072523A - Insulator. - Google Patents

Description

L. STEINBBRGER.

INSULATOR.

APPLIOATION FILED MAY 18, 1910.

1,072,523, Patented Sept. 9, 1913.

WITNESSES: a INVENTOR some summonses, or successor, NEW YosK.

INSULATGR.

Sneeification of Letters Patent.

- Patented Sept. 9, 1913.

Application filed May 1910. Serial No. 561,964.

T all whom 2'5 concern Be it known that 1, Louis S'rnmnnnonn, a citizen of the United States, and a resident of the city of New York, borough of Broolo lvn, in the county New York, have invented a new and Improved Insulator, of which the following 2. full, clear, and exact description.

My invention relates to insulators for general use, my special purpose, however, being to produce an insulator suitable for use upon telephone and telegraph lines, and adapted for promoting accessibility to the Wire telininals, and for facilitating the making and breaking of electrical connections more 01 less permanent, the device thus possessing characteristics that make it adaptable as a Wall box.

My invention further comprehends the use of an insulating ed a substantially U-shaped metallic member having two portions provided With means for connecting wires with said portions.

My invention relates further to the provision of a suitable covering for the insuto or removed from the base Without disturbinr the Wire connections.

hi provision of with means for securing lher provided with a plurality of slots disposed on the seine face Where the conductors are brought into engagement with the subsnuuially U-shaped metallic connectors, and is further provided with means for receiving; and securely retaining a cover, Without having to resort to the employment of auxiliary parts or tools for securing the cover to the base, or for removing the cover from the base.

is a vertical. section on the line a 1 l-l of hig. 2, showing my comof Kings and State of base in which is mountlatiuq base in order to protect the parts car: by it from t e effects of dust and mois turc, and enables the covering to be applied invention further comprehends the l an insulating base provided 3 the same to a well, i ceiling or other support, the base being fur- 2 is a section on the line 22 of Fig. 3 is a perspective showing and parts nnniedlatelv associated plete; Fig. Fig. l, and the base with it.

A base 4 having generally the form. of a disk is'p'rovided with areduced portion extending to a shoulder 6 and provided externully with a thread 7. The base & is provided with slots 8 which extend inward and are providedwith upwardly extending portions 9 which reach to the top of the reduced portion June will be understood from Fig. 3. A cup 10 is provided with a thickened portion 11, the latter being bounded by a shoulder 12. This shoulde also forms a boundary for 2. 2h. i 13 which is disposed internally of the cup and fits the thread 7 of the base. Both the base and the cap are made of insulating material. i A. longitudinal me 14 is bent substantial y into U-shape, as indicated in Fig. l, and has its middle portion embedded within the base 4, so as to leave the upwar ly Xisnding portions 15, 16 projecting above the base. The portion 15 is threaded. The portion 16 is first provided with a sink 1? as, shown in Fig. 3, and is then soon so as to form a mushroom head 11 is ind'" ted in'Fig. 1. Before spin ning the nsbroo n head 1], a flat Washer a spr' g 19 and a .eou le of concaveconvex washersxZO, 21 are s ipped over the portion 16,. This being done and the head 17 being spur-1, the tension of the spring 19 nor-molly forces the washer 18 against the under side-oi the mushroom head 17'" and also forces the washer 20 down toward the asher 21 end iorces the latter the ase.

A wire 22 is inserted through the slot I and is brought into en agementwi th the washers 20, 21 being f orced between the two, as indicated in Fig. 1. Mounted upon the threaded portion 15 are nuts-23, 2A, and below these nuts and encircling the portion 15 is a, metallic Washer 25. A Wire 2 engages this metallic Washer and is held thereagainst by pressure of the nut 23. The nut 52s is merely a nut 'lock for holding the nut 23 rigidly in position when once adjusted upon-the Wire.

There are two of the U-shaped metallic members, and I find it convenient to dis- ,pose the th neaded portion 15 of one opposite the smooth portion 1630f the other, as will be understood from Fig.

tallic rod-like member This gives the yerutor desires to sea spring connection, he may connect the i that is, the threaded portion of one U- shaped member is adjacent the smooth portion 16 of the other menil'ier, the operator can use his judgment as to whetheru particular wire shall be quickly connectegl under light pressure or slowly connected untler heavy pressure. Aj'screw hole 27 1s usetl for securing the beseto a table or a it! nigh l have illustrated the ll-shupecl n'zetullic Ito-embers us comprising round rods of continuous cross-section, it should be pointed out that these l'OtlS muy have any cross-section wherein sharp angles are eliminated, for it is well known fact that sharp angles and corners, when emr lie-titled in a ficlile material, tenrl to create cracks from such corners. The bends of the reels are grotluul, also for the purpose of eliminating sharp corners. The thus formed is of considerable out! any one of the upstanding -ims, above the upper surface of the base t, is re nforced by a. substantial trzllie eon; at least one other upstanding poi on. It should. alsobe pointed out that the tortuous path provided. by the slots S 9, closet! in by the pendent threacled portion of the cup or cover, provides a means for positively preventing withtlruwal of the bent wire 26 in cuse'the inner end of racial bent wire becomes accidentally cllsens nged fro the birullng yl osts. The wire, LEOWQYClylF readily remove-ole through the open slot, when the cap or lover is removed. The operation of? my ilevlce is as follows: The cup 10 being I'BI11OVECl, ltl10 wires 22, 26, or either a. then'i. :lre connected desired, and the cup 10 is then. replalcetl. The shoultier 12, by fitting neatly clown upon the outer edge of the rccl u-eil p ilQ-J) 5, makes a joint of kind. which can not readily leak or admit moisture or dust. The lower edge of the-thickened portion 11, by pressing downwardly against the shoulder :3, makes soother joint, both of these joints being held tightby chi of the screw threads connecting tr e louse anti. the cap together.

3th the cap or cover I'GiYlOVBtl, the grooves 8) stand open and. the-binding posts are-exposed, so that the operator may -tlil." connect the wires directly to the binding posts and replace the cover, all without the necessity for threading the wires through holes of any description, and et, with the cover attached, the Wires-are positively held. by the cover against accidental withdrawal. In connection. with the binding posts con'iprising the spring pressed wushers 20-2l, it should be noted that the quick attachment. and release feature atfOl't'lOLl by this construction, is peculiarly adopted to cooperate with the open grooves to the end thuhupon removal of the cover, the operator may almost instantly arrange a wire terminal in the groove with its end between the washers, and replace the cup to holcl the wire against accidental removal. To remove the wire, he has practically only to detach the cover and lift the wire out, there being no screws or nuts holding the. wire, and no holes tl'irough. which it must be drawn.

Various purposes may be served by aid of thetlevice above described. It may be used, for instance, for (lead ending telephone wires, thereby keeping them Where they are readily accessible and where they are notept to do any harm even if, in case of accident, they should become unduly energized by some vagrant wire. Again, by connecting two wires together, say the WlIG with its muting wire 26, the connection is readily made through one 01" both ofthe U-shupcd members. One vwire can be connected, say by old of the nuts 23, 24, and may remain thus connected indefinitely, and at any time in order to connect this wire with another wire the latter is simply brought through the slot 8 and into enguge-' ment with the washers 20, 21, the spring pressure forcing these washers against the wire last mentioned.

For convenience, I show merely one form of my invention, but it, will be understood that I do not limit myself to the exact form nor to the number or details of any or all 5f the parts above shown and described, nor do 1 limit myself to any particular combination of the parts, neither do 1 limitmyself to the use of any prescribed materials.

Having thus described my invention, I

claim as new and desire to secure tors Patent:

1. An insulator, comprising s'baseof insulating material, t-inlly U-shaped members of conducting mm terial partially embedded therein, each of mid Ushaped n'wmbers having a. smooth portion and a threaded portion. extending from said base, the threaded portion of one by Lotof said U-shsped members being adjacent;

to the smootlrportion of, another of said nection of comluctm's therewith.

a plurality .of"-s ubsten- -U.-sha.pe(l members; and mechanism coulct of such sha 'which won d tend to fracture the fragile 2. In a device of the class described, the combination with a base member carrying a binding post comprising a quick release means for retaining a terminal, ofa cover for said base member detachably connected therewith inclosing said binding post and adapted to 006 rate with means formed in sai base mem er so as to provide an auxilia retainer for the terminal whereby to faci itate removal of said terminal from said quick release binding post upon detachment of said cover.

3. An insulator comprising a' base member of molded fragile insulating material, an integrally formed U-shaped rod of conducting material having its intermediate portion molded within the fragile material of the base member and having its opposite end portions rojecting from the base mem-. her, the em ded portion of the rod being as to present no sharp corners material in which it is molded and said embedded portion servingtohold the opposite combination with a basemember carrying a binding post for retaining a terminal, of a cover for said base member detachably connected therewith inclosing said'binding post and adapted-to cooperate with means formed in said base member so as to rovide an auxiliary retainer fol-the terminal,

whereby to facilitate removal of the terminal from said binding post upon detachment of said cover. J

5. In a device of the class described, the combination comprising a base,. a binding post projecting from the upper surface of said base; a flange formed upon said base projecting laterally therefrom at a point spaced somewhat below the upper surface thereof for forming, with the side of said base, an angular recess on said base; a cover for said base having an angular portion adapted to be received in said angular re cess and to engage the walls thereof; and

the walls of said recess being formed with a, groove extending transversely thereof and opening throughout its length into said recess and being closed by the angular. portion of said cover,- a portion of'said cover extending below the upper surface of'said base and said groove comprising a tortuous passage directly beneath the lower part of said cover and to the upper surface of said base adapted to receive a bent wire ,for attaching to said binding post and adapted to hold said wire against accidental withdrawa'l only so long as said cover is applied, and said binding post comprising quick release means for the end of the wire; all whereby thewire is instantly removable from connection with said binding post and laterally out of said groove upon detachment of said cover. a

6. In a device of the class described, the l 7. An insulator comprising abase mem- Q her of molded insulating-material, anintegra'l U-shaped rod ofv conducting material having the end portions of its iegs protruding from the surface of said base adapted to serve as binding posts,'and the intermediate connecting'portion of the U-shaped .rod being embedded within the molded material and rigidly connecting the legs.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LOUIS srnmnsnonn.

Witnesses:

A. H. DAVIS, PHILIP D. RonLHAUs.

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