US546613A - Electric fusible cut-out - Google Patents

Description

(No Model.) r D. N. GLEASON. ELECTRIC PUSIBLE OUT-OUT.

Pa-tnted Sept. 17, 1895.

INVENTOR ATTORNEY WITNESSES.

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UNITED STATES PATENT OFFICE.

DUANE N. GLEASON, OF BROOKLYN, NEW YORK.

- ELECTRIC FUSIBLE CUT-OUT.

SPECIFICATION forming part of Letters Patent No. 546,613, dated September 17, 1895.

Application filed July 19, 1892.

T0 aZZ whom it may concern.-

Be it known that I, DUANE N. GL'EASON, a citizen of the United States, and a resident of Brooklyn, in the county of Kings and State of New York, have invented certain new and electric fusible cut-outs.

The objects of my improvements are to secure more certainty in its proper operation by providing means whereby an interruption of the current will take place upon the destruc tion of the fusible conductor by an overcharge of electricity, to simplify the construction, and to enable the cut-out to be repaired with facility.

Figure 1 is a top view of the fusible cutout. Fig. 2 is a side view partly in section. Fig. 3 is a sectional side View of a modification. Fig. at is a section on line 1 2, Fig. 1.

The base A is formed of some non-conductin g material. Contact-pieces B 0, each being U-shaped, having arms 6 b and c c, respectively embrace, the part a of the base A, an d may be caused to retain their position by being fitted closely to the base, or the screws that hold the conductor may pass through the arms and through perforations in the base, as in Fig. 3. This method of construction does away with the necessity for attaching the contact-pieces to the base by means of separate screws, saving the cost of the screws and of cutting a thread in the base.

G is an electric-line conductor making contact with B. G is an electric'line conductor making contact with O.

H is the fusible electric conductor connectin g the electric conductors G and G by means of the U-shaped contact-pieces B O.

Through the base A, between the contactpieces B C, an opening a, is made, across or through which the fusible electric conductor extends. The object of the opening is to afford more space for the fused metal of the conductor H between the contact-pieces, so that after fusion there will be little or no liability of the passage of the current. This is accomplished without enlarging the external proportions of the cutout. The additional room gained between the contact-pieces per- Serial Not 440,657. (No model.)

mits a fusible conductor of a greater length to be used.

By the use of the two-armed contact-pieces I am enabled to secure the advantage of permanent connections between the main-line conductors G and G with the contact-pieces B O, as the screws D E need not be disturbed when a new fusible conductor is to be insorted. The fusible conductor connects with the contact-pieces by means of the screws J K, Fig. 2, at the arms opposite to those connecting with the conductors G G. This permits renewal of the fusible conductor without disturbing the connections of the conductors G G, the repairing being done with great facility.

Fig. 3 shows a modification wherein the screws L M are placed on opposite sides of the base A, the contact-pieces being arranged with the part connecting the two arms extending through the opening a. The fusible conductor passes through the opening a, one end making contact on one face of the base A, and the other end making contact on the opposite face. In this modification the conductors G G are connected bymeans of the screws I. M,'and the fusible conductor is connected by nuts N N upon the screws. These nuts can be removed without disturbing the screws. It will be observed that the flange extends all around the block to prevent contact with any of the surrounding parts.

What I claim is 1. In an electric cut out, the combination with an insulating base having an opening through it, of U-shaped contact pieces, forming two arms, connecting screws on one side ofthe base, and connecting nuts on theopposite side for attaching the line conductor and fusible conductor, respectively, the fusible conductor extending through and across said opening, substantially as specified.

2. In'an electric cutout, the combination of a base composed of non-conducting material having an opening through it; a fusible conductor extending across the opening and contact pieces embracing both sides of the base, substantially as specified.

3. An electric cut out, consisting of a base of insulating material, having contact pieces at each end, embracing both sides of said base, an opening through the base and a fusible conductor extending through and across the opening connecting the contact pieces, substantially as specified.

4. In an electric cut out the combination of U-shaped contact pieces, one arm of which extends above, and one below the insulating base; with screws for connecting the electrical conductors and nuts, secured to the screws for connecting the fuse to the contact pieces, substantially as set forth.

5. In an electric cut out, the combination of U-shaped contact pieces one arm of which extends above and one below the insulating base; with screws for connecting the electrical conductors, and nuts, secured to the screws adjacent to the contact pieces, for connecting the fuse to the contact pieces, substantially as set forth.

6. In an electric cut-out, the combination of U-shaped contact pieces,one arm of which extends above, and one below the insulating base; with screws for connecting the electrical conductors and nuts, secured to the screws adjacent to the contact pieces, and on the outside of the contact pieces, for connecting the fuse to the contact pieces, substantially as set forth.

7. In an electric cut-out, the combination of U-shaped contact pieces, one arm of which extends above, and one below the insulating base; with screws for connecting the electrical conductors, and nuts, secured to the screws on the side of the insulating base, opposite the side atwhich the head of the screw is located, for connecting the fuse to the contact pieces, substantially as set forth.

Signed at New York, in the county of New York and State 01' New York, this 16th day of May, A. D. 1892.

DUANE N. GLEASON. YVitnesses:

E. G. ALBEE, E. F. GENNEPur.

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