US1491726A

US1491726A - Electric-fuse pliers

Info

Publication number: US1491726A
Application number: US561389A
Authority: US
Inventors: Carl A Nelson
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-05-16
Filing date: 1922-05-16
Publication date: 1924-04-22
Anticipated expiration: 1941-04-22

Description

. C. A. NELSON- ELECTRIC FUSE PLIERS Filed may 16, 1922 2 Sheets-Sheet 1 Carl 16 Nelson.

INVENTOR A'ITORNEY ELECTRIC FUSE PLIERS Filed May 16. 1922 2 shee ts sheet 2 [Valaon INVENTOR {5 ATTORN EY W ITN ESS Patented Apr. 22, 1924.

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Application filed-May 16, 1922. Serial:1lo.-561, 389.

To all whom it may concern:

Be it known that I, CARL A. NELSON, a citizen of the United States, residing at Johnsonburg, in the county of Elk and State of Pennsylvania, have invented new and useful Improvements in Electric-Fuse Pliers. of which the following is a specification.

The object of my said invention is the provision of pliers designed to enable an electrician to safely handle fuses when removing or placing fuses, particularly fuses of small size.

To the attainment of the foregoing, the invention consists in the improvement as hereinafter described and definitely claimed.

In the accompanying drawings, forming part of this specification 1 Figure 1 is a side elevation of a device constructed in accordance with my invention.

Figure 2 is a longitudinal section of the same.

Figure 3 is a diametrical section of the handle member of the device.

Figure 4 is a cross-section of same.

Figures 5 and 6 are enlarged views illustrating the peculiar construction of the jaws comprised in the device.

Figures 7, 8 and 9 are cross-sections on the lines 7-7, 88 and 9-9, respectively, of Figure 2.

Similar numerals of reference designate corresponding parts in all of the views of the drawings.

Among other elements my novel device comprises a handle 1 of wood fiber or other appropriate .dielectric material. Exteriorly the said handle 1 is of angular form in cross-section, and interiorly the handle 1 is threaded as indicated by 2 and is provided at its lower end with a chamber 3. Metallic bands 4 and 5 are mounted on the lower and upper portions of the handle 1 to lessen the liability of the handle splitting when the device is in use.

In addition to the handle 1 the device comprises a threaded shank 6, of wood fiber or other dielectric material, and rounded at its lower end as indicated by 7*. On the lower portion of the said shank 6 is appropriately secured a sleeve 7 of brass or other suitable metal or alloy, and integral with the said sleeve 7 are jaws 8 which as shown in Figures 5, 6 and 7 are of peculiar construction. In this connection it will be noticed that) the jaws. are formed.- of, strips ofrbrass or other .appropriatemetal oralloy,

each of a the jawsihaving an r outer portion. 9 integral with the sleeve 7, and an'inner portion 10 spaced from the portion 9, and also having a shoulder 11, an inner concave portion 12, and an outer correspondingly curved portion 13, the said

portions

12 and 13 being joined by a bight 14 at the lower extremity of the jaws. 10 of the jaws are joined and curved as indicated by 15. It will also. be noticed that the jaws and the sleeve 7 are so arranged as to afford a triangular space 16 at the lower end of the sleeve 7. In this connection it will be understood that the shank 6 is rounded or ball like at its lower end .7", in order to afford more contract-ion space.

Movable rectilinearly on the sleeve 7 and by the handle .1 is a tubular follower 17. Disposed below and opposed to the lower end of the follower 17 is a ring 18 of wood fiber or other appropriate dielectric material, the said ring 18 being roughened at its outer side and being interiorly of angular form in cross-section. The follower 17 which is preferably of woodfiber or other dielectric material can be held by the fingers of the operator, and when the handle 1 is turned in the proper direction it works The inner portions Y down on the threaded shank 6, and moves connection 15 between the jaws renders the jaws resilient so that when the follower 17 is retracted the jaws will spring open as shown in Figure 5.

It will be apparent from the foregoing that through the medium of my novel device fuses and particularly small fuses can be handled with facility and with perfect safety to the operator.

Having described my invention, what I claim and desire to secure by Letters-Patent, is

1. Pliers comprising a threaded shank, spring jaws connected with said shank and having outer and inner spaced portions, the outer portions being shouldered, a tubular handle interiorly threaded and surrounding and engaging the shank, and means surrounding the jaws and interposed between the end of the handle and said shouldered P rti n o the j ws and movable rectiline-' arly by the handle on rotation thereof to close the jaws and hold the same in closed position. i

2. Pliers comprising a threaded shank, spring jaws connected with said shank and having outer and inner spaced portions the outer portions being shouldered, a tubular handle interiorly threaded and surrounding and engaging the threaded shank, and means surrounding the jaws and movable rectilinearly by the handle on rotation of the latter to close the jaws and holdthe same in closed position; said means being in the form of a ring interiorly of angular form in cross-section surrounding the upper portions of the jaws and arranged to be stopped by the exterior shoulders thereof, and a tubular follower interposed between the tubular handle and ring.

In testimony whereof I aflix my signature.

CARL A. NELSON.