US463764A - Multiple-fuse cut-out - Google Patents

Multiple-fuse cut-out Download PDF

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US463764A
US463764A US463764DA US463764A US 463764 A US463764 A US 463764A US 463764D A US463764D A US 463764DA US 463764 A US463764 A US 463764A
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disk
fuse
fuse cut
circuit
cut
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02Details
    • H01H85/26Magazine arrangements

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  • My present invention relates to an improved form of multiple-fuse cut-outs; and it aims to 10 provide a simple, compact structure, easily and cheaply manufactured, by which a number of fuses may be successively inserted into the electric circuit which requires protection, so that when one fuse is ruptured another may be quickly introduced to take its place and the ruptured one may be removed without danger of shock to the attendant.
  • A is a base-piece, which represents simply a means of attachment for the cut-out.
  • a spin- -dle B Pivoted to this block upon a spin- -dle B is a disk of insulating material Csuch as hard rubber, glass, or porcelainwhich serves as a support for the fuses.
  • C such as hard rubber, glass, or porcelain
  • D Around the edge of the disk are set a number of 0011- tact-pieces D, suitably secured thereto, which project a short distance beyond the circumference of the disk, as'is seen in Fig. 2.
  • the fuses of which any desired number may be used, are seen at E and have jaws E, by which they are secured to the contacts by setscrews F.
  • the circuit-terminals G are secured to the base-piece A or other support and are arranged in the arc of a circle concentric with the spindle B, so that as the disk is turned the different contact-pieces D are successively brought into engagement with them. These terminals are shown in Fig. 2 grooved or cut away, as at cl, to receive the projecting ends of the contact-pieces and insure a good electrical connection.
  • a suitable handle I is provided upon the disk, and, as will be readily understood,whenever one fuse is ruptured it can be moved one made to take its place by simply rotating the disk. The ends of the ruptured fuse can then be removed without danger to the atteu dant, and a new one can be attached at his leisure withoutinterruption of the circuit which the fuse protects.
  • a multiple-fuse cut-out comprising a pivoted rotary'disk of insulating material, contacts arranged around the edge of the disk on one of the flat faces thereof, fuses attached to said contacts, and a pair of circuit-terminals making connection with the contactsin pairs as the disk is rotated.

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Description

(No Model.)
G. K. WHEELER. MULTIPLE FUSE GUT-OUT.
No. 463,764. Patented N0v.'24, 1891.
UNITED STATES PATENT OFFICE.
GEORGE K. IVHEELER, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE TIIOMSON HOUSTON ELECTRIC COMPANY, OF CONNECTICUT.
MULTIPLE-FUSE CUT-OUT.
SPECIFICATION forming part of Letters Patent No. 463,764, dated November 24, 1891.
Application filed November 26,1890- Serial No. 372,701. (No model.)
To all whom itmay concern: 7
Be it known that I, GEORGE K. WHEELER, a citizen of the United States, residing at Chicago, county of Cook, and State of Illinois, have invented a certain new and useful Im provement in Multiple-Fuse Cut- Outs, of which the following is a specification.
My present invention relates to an improved form of multiple-fuse cut-outs; and it aims to 10 provide a simple, compact structure, easily and cheaply manufactured, by which a number of fuses may be successively inserted into the electric circuit which requires protection, so that when one fuse is ruptured another may be quickly introduced to take its place and the ruptured one may be removed without danger of shock to the attendant. These improvements are illustrated in the accompanying drawings, wherein Figure 1 is aplan view, and Fig. 2 a sectional view, taken through one of the circuitterminals.
In the views, A is a base-piece, which represents simply a means of attachment for the cut-out. Pivoted to this block upon a spin- -dle B is a disk of insulating material Csuch as hard rubber, glass, or porcelainwhich serves as a support for the fuses. Around the edge of the disk are set a number of 0011- tact-pieces D, suitably secured thereto, which project a short distance beyond the circumference of the disk, as'is seen in Fig. 2. The fuses, of which any desired number may be used, are seen at E and have jaws E, by which they are secured to the contacts by setscrews F.
The circuit-terminals G are secured to the base-piece A or other support and are arranged in the arc of a circle concentric with the spindle B, so that as the disk is turned the different contact-pieces D are successively brought into engagement with them. These terminals are shown in Fig. 2 grooved or cut away, as at cl, to receive the projecting ends of the contact-pieces and insure a good electrical connection.
A suitable handle I is provided upon the disk, and, as will be readily understood,whenever one fuse is ruptured it can be moved one made to take its place by simply rotating the disk. The ends of the ruptured fuse can then be removed without danger to the atteu dant, and a new one can be attached at his leisure withoutinterruption of the circuit which the fuse protects.
In designing the fuse described above I have had more particularly in mind its application to railway service; but it will be found equally advantageous upon other self in this respect.
hat I claim as new, and desire to secure by Letters Patent, is
1. A multiple-fuse cut-out comprising a pivoted rotary'disk of insulating material, contacts arranged around the edge of the disk on one of the flat faces thereof, fuses attached to said contacts, and a pair of circuit-terminals making connection with the contactsin pairs as the disk is rotated.
2. The combination, in a multiple-fuse cutout, of the pivoted rotary disk of insulating material, separate sets of contacts arranged around on the edge of one of the fiat faces of the disk, fuses arranged around said disk in circular form and secured to the contacts, and circuit-terminals in the path of travel of the contacts, whereby the fuses may be inserted in circuit successively by rotating the disk, as set forth.
In witness whereof I have hereto set my hand this 7th day of November, 1890.
GEORGE K. WHEELER. Witnesses:
F. J. WILLsON,
II. J. SINCLAIR.
away from the circuit-terminals and the next d classes of work. I therefore do not limit my- I
US463764D Multiple-fuse cut-out Expired - Lifetime US463764A (en)

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