US1752575A - Fuse-handling tool - Google Patents

Description

April 1, 1930.

F. H. ROSELLE 1,752,575

FUSE HANDLING TOOL Filed Dec. 17, 1927 E. 3 dIIjI ll -h. L?

INVENTOR FIHRoselle BY Q mm.

ATTORNEY engage and firmly Patented Apr. 1, 1930 PATENT OFFICE FREDRICK H. ROSELLE, 0F TURLOCK, CALIFORNIA FUSE-HANDLING r001.

Application flled December 17, 1927.

This invention relates to linemens tools and particularly to one for replacing and removing cylindrical fuses from their holding clips, said fuses being isolated from manual contact due either to physical location or proximity of high voltage current, or a combination of these factors.

The principal'object of my invention is to provide a tool for the purpose which when pressed against'the fuse will automatically hold the same, so that with a further manipulation of the tool the fuse may be easily disengaged from its clips and as readily replaced when desired.

A further object of the invention is to provide a tool of this character which will function to thus engage the fuse without any initial adjustments being necessary and which can be used with equal facility with fuses of different diameters.

A further object of the invention is to produce a simple and inexpensive device and yet one which will be exceedingly effective for the purpose for which it is designed.

These objects I accomplish by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims.

In the drawings similar characters of reference indicate corresponding parts in the several views:

Fig. 1 is a front elevation of the tool.

Fig. 2 is an end elevation of the same.

Fig. 3 is a cross section of the tool showing the removable guide as engaged with a fuse.

Fig. 4: is a perspective view of the fuse seating plate.

Referring now more particularly to the numerals of reference on the drawings, the body of the tool comprises a flat vertical plate 1 which is bent outwardly at its upper end to form a horizontal ledge 2 from the back of which a wall 3 projects u wardly. Said wall at its upper end curves orwardly as at 4 to overhang theledge 2 in spaced relation there- Serial No. 240,839.

to, so as to form a deep horizontal recess 5 therewith. Guide fingers 6 spaced lengthwise of the recess project upwardly from the body at the top of the recess, said fingers sloping back from the front face of the wall and recess toward their upper ends. All the parts thus far described are preferably formed of an integral casting of bronze or other suitable metal. The body plate at its lower end is swivelly connected by a clamping structure '5 5 to a socket member 8, the socket being adapted to receive the upper end of a handle-pole 9, which is preferably of a non-conducting material.

The plate 1 intermediate its ends is formed with horizontally spaced cars 10 on its front face to receive a pin 11 which engages ears 12 formed on a vertical plate 13, whose width is preferably approximately equal to the space between the fingers 6. The upper portion of the plate 13 is formed with a finger 14 whose base is normally in line with the base of the fingers 6. This finger 14- fiares upwardly in the direction opposite to the fingers 6, so that a V shaped opening is seen when looking endwise of the tool as shown in Fig. 2.

A spring 15 between the plates 1 and 13 below the pivot of the latter acts to normally hold the base of the finger 14 against the forward edge of the body element 4. It will therefore be seen that said movable plate 13 ordinarily form a closure for the front of the recess 5.

Extending lengthwise in the recess and parallel to the upper wall 4 thereof and spaced therefrom is a seat plate 16 provided with a vertically depending extension 17 which is slidable against the front face of the plate 1. This extension is provided with avertical slot 18 through which a pin 19 projects,

said pin being mounted in the body. The plate 16 to the sides of the central plate 13 projects outwardly beyond the normal plane of said plate as indicated at 16. A leaf spring 20.between' the ledge 2 andv the plate 16 forces the latter upwardly to its limit of possible movement as determined by the engagement of the pin 19 with the bottom of the slot 18. The back of the body adjacent its upper end is preferably provided with a centrally disposed hook 22 so that the tool may be hung on a wire or the like when desired.

In operation the socket is first adjusted relative to the body so as to place the recess 5 substantially in longitudinal or parallel alinement with the fuse to be handled, while maintaining the handle-pole in a convenient position to be manipulated by the operator. The tool is then manipulated to cause the fuse 21 to be located in the V shaped opening between the difierent fingers. Pressure is then exerted to cause the movable fingers to spread away from the fixed fingers 6 as shown in Fig. 3, and such pressure is continued until the fuse has been passed below the upper wall f and has been received into the recess 5. In doing this the seat plate 16 will be depressed somewhat so that the opposite edges of the fuse will be frictionally engaged by said plate and the upper recess wall at. hen the fuse has been once lowered into horizontal alinement with the recess the closing pressure of the plate 13 will automatically push the fuse into place in the recess, and said plate will reassume its original position. The side extensions 16 of the plate 16 prevent the fuse from possibly being caught between the plates 1 and 13 before the plate 13 has had a chance to close.

WVhen the fuse is once in place, the tool may be further manipulated to withdraw the fuse from its holding clips without any danger of the fuse then slipping from place. When replacing the fuse on the line, the fuse is placed in the tool by hand and is raised into place between and engaged with its clips. The tool is then withdrawn by a side pressure to withdraw the fuse from the recess and to spread the movable finger, and is then given a downward pull to move the tool from engagement with the fuse. The upper wall of the recess, along its outer edge, has a downwardly depending lip as shown. This aids in preventing the fuse from being accidental- 1y displaced from the recess as will be evident.

From the foregoing description it will be readily seen that I have produced such a device as substantially fulfills the objects of the invention, as set forth herein.

While this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.

Having thus described my invention what I claim as new and useful and desire to secure by Letters Patent is:

1. A fuse handling tool comprising a body member having a horizontal recess in one side to receive a fuse, a plate in the recess .paced from and parallel to the upper wall thereof, spring means pressing said plate toward the said upper wall, and means for initially engaging a fuse on opposite sides thereof to guide the same toward the open side of the recess.

2. A fuse handling tool comprising a body member having a horizontal recess in one side to receive a fuse, a plate hinged onto the body and projecting upwardly past the open side of the recess, spring means yieldably holding said plate against the outer edge of the recess at the top, and opposed fingers projecting upwardly from the body and plate above the recess and flaring outwardly from each other toward their upper ends to tcrininations wider apart than the diameter of a fuse to freely receive a fuse therebetween and guide the same into centralized relation with the adjacent faces of the body and plate.

3. A fuse-handling tool comprising a body member having a recess in one side to receive a fuse, a spring-pressed closure for the open side of the recess, means causing said closure to be automatically moved away from the recess when the tool is pressed into engagement with a fuse whose longitudinal axis is approximately parallel with the axis of the recess, and means separate from said spring pressed closure acting on the fuse when moved into the recess for then frictionally holding the fuse in place.

4. A fuse-handling tool comprising a body member having a recess in one side to receive a fuse, a spring-pressed closure for the open side of the recess, means causing said closure to be automatically moved away from the recess when the tool is pressed into engagement with a fuse whose longitudinal axis is approximately parallel with the axis of the recess, and a spring-pressed plate disposed lengthwise in the recess parallel to one of the walls thereof which projects inwardly from the open side of the recess.

A fuse-handling tool comprising a body member having a recess in one side to receive a fuse, a spring-pressed closure for the open side of the recess, means causing said closure to be automatically moved away from the recess when the tool is pressed into engagement with a fuse whose longitudinal axis is approximately parallel with the axis of the recess, and a spring-pressed plate disposed lengthwise in the recess and. facing in the direction from which the fuse is moved into the recess; said plate, at the sides of the closure, projecting outwardly beyond the normal closed position of the closure.

6. A fuse-handling tool comprising a body member having a recess in one side to receive a fuse, a spring-pressed closure for the open side of the recess, means causing said closure to be automatically moved away from the recess when the tool is pressed into engagement with a fuse Whose longitudinal axis is approximately parallel with the axis of the recess, and a spring-pressed plate disposed lengthwise in the recess and facing in the direction from Which the fuse is moved into the recess; and means formed with said plate for causing the fuse, When entering the recess, to initially engage and depress the plate.

In testimony whereof I aflix my signature.

FREDRIOK H. ROSELLE.

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