US737283A - Fuse-block. - Google Patents

Description

PATENTED AUG. 25, 1903.

J. SACHS.

FUSE BLOCK.

APPLIGATION FILED MAY 6,19Q2.

N0 MODEL.

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UNITED STATES Iatented August 25, 1903.

PATE T OFFICE.

JOSEPH SACHS, OF HARTFORD, CONNECTICUT, ASSIGNOR TO THE JOHNS- PRATT COMPANY, OF HARTFORD, CONNECTICUT, A CORPORATION OF CONNECTICUT.

FUSE-BLOCK.

SPECIFICATION forming part of Letters Patent No. 737,283, dated August 25, 1903.

Application filed May 6, 1902. Serial No. 106,131. (No model.)

To all whom it may concern:

Be it known that I, JOSEPH SACHS, a citizen of the United States, residing at Hartford, in the county of Hartford and State of Connectiout, have invented an Improvement in Fuse- Blocks, of which the following is a specifica tion.

My invention relates to fuse-blocks, and

particularly to that kind of f use-blocks known I0 as branch fuse-blocks.

Heretofore in branch fuse-blocks it has been customary to make the block sufficiently large to receive both the main-circuit wires and the fuses for the branch circuits, and these have been arranged with the fuses abutting the main wires and intervening between the main and branch wires, which structure was not economical of space or material. This necessarily made the block of considerable area,

requiring much wall-space, which isoften inconvenient and disadvantageous, and particularly is this so in multiwire systems.

My present invention comprises a block of insulating, vitrified, or refractory material 2 5 which is a support for and receives both the main-circuit wires and the branch fuses, the former preferably passing at right angles and in a different plane to the latter and between the fuse-terminals in the block, which is so formed as to provide the requisite insulation between these parts and the necessary electrical connection between them, thereby economizing space and providing a compact convenient f use-block.

In carrying out my invention I provide a block of porcelain or other suitable insulating or vitrified material, preferably having a series of parallel grooves for receiving the main-circuit wires, the said grooves being pro- 4o vided with binding-contacts, to which the main-circuit wires are connected, and series of parallel recesses transversely of said grooves and at both sides thereof, the said recesses being provided with suitable fuse-terminal contacts, to those of which on one side of the block the branch-circuit wires are brought; also, parallel undercut channels of varying length for wires connecting the maincircuit wires with the fuse-terminal contacts on the opposite side of the block from those sired type to receive the branch-circuit wires to which the branoh-circuitwires are brought, the branch-circuit fuses extending between the said fuse-terminal contacts and above the main-circuit wires and preferably at right angles thereto.

In my improved structure the main-line wires are located between the terminals of the branch-circuit fuses and the contacts for the same, and thereby an exceedingly compact and convenient structure is secured.

In the drawings, Figure 1 is a plan of my improved branch fuse-block. Fig. 2 is a side view, and Fig. 3 an end view, of the same. Fig. 4 is a section at a: a: of Fig. 1, and Fig. 5 is a section at y y of Fig. 1.

a represents a fuse-block made of some good insulating or vitrified materialsuch, for instance, as porcelain. The block a is provided with a series of grooves or depressions I), having intermediate parallel walls 2. 7c The grooves 11 receive the main-circuit wires 3 and are provided with recesses 4 to receive the binding-contacts c, which make electrical connection with and secure the main-circuit wires 3 to the block by means of the screws 5; Both ends of the block a are preferably provided with walls or partitions 6, which,

minals e by the screws 15, and the said ter minals are connected to contacts of any de- 9. Branch-circuit fuses f are snapped into the various pairs of clip-contacts d d. The walls 6 are preferably rounded at the top and taper, increasing in thickness toward the bottom, and the walls 7 may also be tapering and rounded at the top and extend between the walls 6 approximately in the form of an arc of a circle. The walls 6 extend above the extreme conducting-points of the clips and all other conducting members of the fuse-block, I00

the said recesses being formed by series of parallel and transverse walls, the former of which extend above the said clip-contacts as a protection for the conducting parts of the block, this being an important feature of my invention.

Each of the contacts 0 is electrically connected to one of the fuse-terminal clip-contacts d in any convenient manner. In the drawings I have shown the contacts a electrically connected to the metal strips 10 by screws 11, the metal strips 10 running along the bottom of undercut recesses 12 in the back of the base to connect electrically with the screws 13, which connect with and bind the clip-contacts d to the block.

I do not wish to limit myself to this form of construction, as the connections between the main-line wires and the clip-contacts for the branch-circuit fuses maybe made in other ways with equal utility. The block a is provided with holes 14, through which screws may be passed or other suitable means employed for securing the block to the wall. I further do not limit myself to the character of the contacts for the fuses, to the dimensions of the block, or those of the devices forming parts thereof.

I have illustrated a block adapted to be employed in a three-wire system; but 'it is apparent that the invention is equally applicable to any number of main or branch circuit wires of any system. The block may be made single, double, or multibranch and need not necessarily be constructed of one integral piece of material.

I claim as my invention- 1. A branch fuse-block comprising a base, fuses and terminal-contacts therefor and devices for securing the terminal-contacts to the base, contacts for branch-circuit wires connected to certain of the fuse-terminal con-- tacts, means for locating the main-circuit wires in the base, at right angles to the fuses, between the fuse-terminal contacts and in a different plane to the fuses, and electric connections between the other of said fuse-terminal contacts and the means for locating the main-circuit Wires, substantially as specified.

2. A branch fuse-block comprising an insulating-base, fuses and terminal-contacts therefor and devices for securing the terminal-contacts to said base, contacts for branchcircuit wires connected to certain of the fuse terminal contacts, means for receiving and holding the main-circuit wires to said base at right angles to the fuses, between the fuseterminal contacts and in a different plane to the fuses, and electric connections between the other of said fuse-terminal contacts and the means for holding the main-circuit wires, substantially as specified.

3. In a branch fuse-block, fuses, terminals for the same, terminal-contacts for receiving and holding the terminals of said fuses, devices for connecting and holding the maincircuit wires between the fuse-terminal contacts, connections between the said devices for holding the main-circuit Wires to the block and one set of fuse-terminal contacts, and devices for connecting the branch circuit to the opposite set of fuse-terminal contacts, substantially as specified.

4. In a branch fuse-block having grooves in which the main-circuit wires are adapted to pass and recesses arranged side by side'in opposite ends of the block and transversely to said grooves, safety-fuses, terminal clipcontacts secured in said recesses and adapted to receive and hold the terminals of said fuses, means for connecting and holding the main-circuit wires to the block in said grooves, connections between said main-circuit wires and one set of said terminal clip-contacts, and means for electrically connecting the branch circuits to the opposite set of fuse-terminal clip-contacts, substantially as set forth.

5. In a branch fuse-block having grooves in which the main-circuit wires are adapted to pass and recesses arranged side by side in opposite ends of the block and transversely to said grooves, safety-fuses, fuse-terminal clip-contacts secured in said recesses and adapted to receive and hold the terminals of said fuses, binding-contacts in each of said grooves contacting electrically with the maincircuit wire in each groove and securing the said wire to the block, electrical connections from said bindingcontacts respectively to each of the said terminal clip-contacts at one end of the block and means for electrically connecting the branch circuit to the terminal clip-contacts at the opposite end of the block, substantially as specified.

6. In a branch fuse-block having grooves in which the main wires are adapted to pass and recesses arranged side by side in opposite ends of the block and transversely of said grooves, safety-fuses, clip-contacts secured in said recesses and adapted to receive and hold the terminals of said fuses, binding-contacts in each of said grooves contacting electrically with the main-circuit wire in each groove and securing the said wire to the block, electrical connections from said binding-contacts respectively to each of said clip-contacts at one end of the block, and contacts in electrical connection with the terminal clip-contacts on the opposite end of the block to receive the branch-circuit wires, substantially as specified.

7. In a branch fuse-block, fuses, terminals for the same, terminal-contacts for receiving and holding the terminals of said fuses, devices for binding the main-circuit wires to and within the said block and between the fuse-terminal contacts, connections on the block between the said devices for binding the main-circuit wires to the block and one set of fuse-terminal contacts, and devices for connecting the branch circuit to the opposite set of fuse-terminal contacts, substantially as specified.

8. In a branch fuse-block having a series of parallel grooves in which the main-circuit wires are adapted to pass and pairs of parallel recesses arranged side by side in opposite ends of the block and transversely to said grooves, safety-fuses, clip-contacts secured in 7 said recesses and adapted to receive and hold the terminals of said fuses, means for binding the main-circuit wires to the block in said grooves, connections between said main-circuitwires andone setof said fuse-terminal clipcontacts, and means for electrically connecting the branch circuits to the opposite set of fuse-terminal clip-contacts, substantially as set forth.

9. In a branch fuse-block'having a series of parallel grooves in which the main-circuit wires are adapted to pass and pairs of parallel recesses arranged side by side in opposite ends of the block and transversely to said grooves, safety-fuses, clip-contacts secured in said recesses and adapted to receive and hold the terminals of said fuses, binding-contacts in each of said grooves contacting electrically with the main-circuit wire in each groove and securing the said wire to the block, electrical connections from said binding-contacts respectively to each of the said clip-contacts at one end of the block, and means for electrically connec'ting the branch circuit to the clipcontacts at the opposite end of the block, substantially as specified.

10. In a branch fuse-block having a series of parallel grooves in which the main wires are adapted to pass and pairs of parallel recesses arranged side by side in opposite ends of the block and transversely of said grooves, safety-fuses, clip-contacts secured in said recesses and adapted to receive and hold the terminals of said fuses, binding-contacts in each of said grooves contacting electrically with the main-circuit wire in each groove and securing the said wire to the block, electrical connections from said binding-contacts respectively to each of said clip-contacts at one end of the block, and contacts in electrical connection with the clip-contacts on the opposite end of the block to receive the branchcircuit wires, substantially as specified.

11. In a branch fuse-block, the combination with fuses and a base having parallel grooves therein adapted to receive the main-circuit wires, of means in said grooves for holding the main-circuit wires to the block, fuse-terminal contacts at either side of said grooves to receive the said fuses, Walls partially surrounding and extending above each of said terminal-contacts, means for connecting the branch-circuit wires to the f use-terminal contacts on one side of said grooves, and means for connecting the main-circuit wires with the f use-terminal contacts in the opposite side of the said grooves, substantially as specified.

12. A branch fuse-block provided with a series of parallel walls and intermediate parallel grooves or depressions to receive the main-circuit wires,and upon a different plane, and at right angles to said walls and grooves with a series of walls or partitions in two groups with series of intermediate recesses, and a series of clip devices in the latter recesses adapted to receive the respective ends of fuse devices which when in place extend over the parallel grooves receiving the maincircuit wires.

13. A branch fuse-block provided with a,

series of parallel walls and intermediate parallel grooves or depressions to receive the main-circuit wires, and upon a different plane and at right angles to said walls and grooves with a series of walls or partitions in two groups, the outer ones of which come at the respective edges of the block, with series of intermediate recesses and a series of clip devices in the latter recesses adapted to receive the respective ends of fuse devices which when in place extend over the parallel grooves receiving the main-circuit wires.

14. A branch fuse-block provided with a series of parallel walls and intermediate parallel grooves or depressions to receive the main-circuit wires, and upon a different plane and at right angles to said walls and grooves with a series of Walls or partitions in two groups with series of intermediate recesses and other walls 7 intermediate of the latter walls and parallel with the first-named par= allel walls, and a series of clip devices in the latter recesses adapted to receive the respec tive ends of fuse devices which when in place extend over the parallel grooves receiving the main-circuit wires. I

Signed by me this 2d day of May, 1902.

JOSEPH SACHS.

Witnesses:

GEO. T. PINCKNEY, BERTHA M. ALLEN.

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