US1468946A - Resistance - Google Patents

Description

Sept. 25, 1923. 1,468,946

A. J. HAORTON RESISTANCE Filed July 28, 1920 mmm wwe gam/cm y Patented Sept. 25, 1923.

,UNITED STATES PATENTOFFICE.

ALBERT J. EORTON, or NEW YORK, N. Y.,

ASSIGNOB TO THE UTLE HAMMER MFG.

CO., OF MILW AUKEE, WISCONSIN, A COEPOEATICN OF ,WSCDNSIN.

RESSTANCE.

Application filed July 28, 1920. Serial NO. :399,602.

T o all whom it 'may cancer n:

Be it known that I, ALBERT J. HORTON, a

Improvements in Resistances, of which the' following is a full, clear, concise, and exact description, reference being had to the ao conpanying drawing, forming a part of this specifieation.

This invention relates to resistances, and more particularly, to resistances of the unit type.

The invention has among its objects to provide a resistance unit having improved terminal means, which is of simple, rugged and durable Construction and which can be 'quickly and readily assenbledwithout any especial skill A further object is to .provide an improved resistance unit wherein the resistance wire is connected'to the terminals without the use of solder and wherein such connection is protected against oxidation.

Various other objects and advantages will hereinafter appear.

The acconpanying drawing illustrates an embodiment of the invention which will now be described, it being understood that the enbodiment illustrated can be modified without de arting from the scope of the appended clams.

In the drawing,

Fig. 1 is a side elevational View of a. re-

sistance unit embodying the invention, a

portion at one end of the unit being broken ay;

F ig. 2 is .an. end view of the res ance unit shown in Fig. 1; I

Fig. 3 is a fragnentary View of one end of the resistance unit 'shown in Fig. 1; the

covering of the unit being shown in section; and,

Fig. 4: is an end View of one of the terminals shown in Fig. 1, illustrating the manner "of conneeting resistance 'wire thereto.

The resistance unit llustrated includes a bored cylindrical base l., of porcelain 'or other`non-conductive material and a resistance wii'e 2 coiled around said base and connected to terninals on opposite ende thereof.

Each of the terminals cemprises a pin 3 and a piece ofbraided cop er wre wound around sai-d pin and enc rcling said base.

As shown in Fig. 4, pin 3 is arranged on one side of said base and the ends of the terminal wire 4 are twisted together on the opposite side of' said base to 'tightly wrap said terminal wire around said base and to bind saidpin thereto. As shown in Fig. 4:, one end of the wire 4 extends beyond the other to provide a lead 5 for connecting the resistance unit in an electric circuit while pin 3 is arranged at substantially right angles to the axis of base 1 and has its ends extendingoutwardly from the portion thereof engaged by wire 4: to provide projecting prongs 6. The resistance wire 2 is connected to the terminal wire 4: by tightly belaying the same around pin 3. After the resistance wire is Secured to pin 3 in this manner,`the ends of the latter are bent against the sides of the base which operation still further binds the resistance wire 2 to the terminal wire 4. A cementitious covering 'Z is applied to the insulating base, such covering extending out to the ende of said base to cover the connection between the resistance wire and the terminals.

It is apparent that the aforedescribed terminal can be quickly and readily assembled and that intimateelectrical connection between the resstance wire and terminal is insured. Also it is apparent that the cementitious covering protects the connection between the resistance wire and terminal from oxidation and also insures against,

loosening of such connection. Further it should be understood that the term comenti tious covering is used in a broad sense to define enanel or other suitable insulating coverings. g

What I claim as new and desire to secure by Letters Patent is:

1. A resistance unit comprising a base, a coil of resistance wire mounted thereon, terminal for said resistance wire surrounding said base and provided with projecting parts for connection of the nesistance Wire thereto, said resistance wire being wound around said projecting parts to secure'the same to said terminals,

2, A resistance unit comprising a base., a eoil of resistance wire mounted thereon, terrninals for saidresistance wre surrounding said baseand provided with projecting parte for connection of the resietance Wire thereto, said resistanee wire he wound around iee:

said parts and said parts being bent to prevent unwinding of said resistance wire thereon. x

3. A resistance unit comprising a base, a coil of resistance Wire mounted thei-con, terminais for said unit each surrounding said base and provided With projectin prongs, said resistance wire being looped around said prongs to bind the same to said terminas.

4. A resistance unit comprising a base, a coil of resistance Wire mounted thereon, terminals for said unit each surrounding said base and provided with projecting prongs, said resistance Wire being Wound around the prongs on said terminals to secure the same the'eto and saidprongs being `bent to prevent unwinding of said resistance wire thereon.

5. A resistance unit comprisin a base, a coil of resistance wire mounte thereon, terminal devices for said unit each including a pin 'and a oonductive lead Wound around said pin and encircling said base, said resistance ire being connected to said lead by belaying the same on said pin.

6. A resistance unit comprising a base, a coil of resistance wire Inounted thereon, and terminal devices for said unit, each comconductive lead.

7. A resistance unit comprising a base, a col of resstance wremounted thereon and terminal devices for said unit each including a pin and a conductive lead surroundin said base, said lead being Wound aroun said pin and having its ends twisted together to secure the same to said base, and said resistance Wire being connected to said lead by belaying the same on said pin.

8. A resistance unit comprisin a base, a coil of resistance wire mounte thereon, terminal devices for said' unit each including a pin and a conductive lead surrounding said base and a'ranged to bind said pin thereto, said resistance wire being connected to said lead by belaying the same on said pin and a. cementitious coverin adhering to said base and enclosing sai resistance wire and the connection between the same and said lead.

scribed my name.

ALBERT J. HORTON

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