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Publication numberUS1726492 A
Publication typeGrant
Publication dateAug 27, 1929
Filing dateJan 9, 1925
Priority dateJan 9, 1925
Publication numberUS 1726492 A, US 1726492A, US-A-1726492, US1726492 A, US1726492A
InventorsAlbert Kantor
Original AssigneeAlbert Kantor
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Fuse protector
US 1726492 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Aug. 27, 1929. A. KAN-roR FUSE PROTECTOR Fild Jan. 9, 1925 3 Sheets-Sheet l w [vm/rm.

ALEHT /64/1727/7.

En? A7775.

Aug. 27, 1929. A. KANTOR 1,726,492

FUSE PROTECTOR Filed Jan. 9, 1925 3 Sheets--Sheefl 2 55 55 f5 5 5! y; j

75' Il U 2 9 27 f7 /y 2/ 15 1l r m ,Qf l I In J' f I I "l ILl y l l f r f /l/ f s w Arr'xi.

Aug. 27, 1929.

A. KAN-ron FUSE PROTECTOR Filed Jan. 9, 1925 3 Sheets-Sheet 5 Arr'rs.

Patented Aug. 27, 1929.



Application filed January 9, 1925.

This invention relates to improvements in fuse protectors and the objects of the invention are to provide a cover for switches and the like adapted to be locked and sealed and whereby tampering with the switch is prevented.

Further objects are to provide an antitampering cover for switches and the like, which can be readily removed and replaced and quickly secured and sealed in position and which will not interfere in any way when unlocked with the operation of the switch.

lVith the foregoing and other objects in view, the invention consists essentially in the novel construction, combination and arrangement of parts described in the present specification and illustrated by the accompanying drawings that form part of the same.

Referring now to the drawings, in which like characters of reference indicate corresponding parts in each figure,

Figure 1 is a perspective view of my improved cover in position,

Figure 2 is a top plan view of a switch with the cover removed,

Figure 3 is a side elevation with the cover in dotted lines,

Figure 4 is a longitudinal section,

Figure 5 is a perspective detail of the switch operating means,

Figure 6 is a top plan view of a modified form of my invention with the cover removed, and

Figure 7 is a perspective view of a modified form of my invention.

Fig. 8 is a section on line 8-8 of Fig. 6.

In the drawings, A designates the switch mounted upon a suitable base or plate 10 and here shown as comprising the fuses 11 and 12 with hingedly mounted switch bar 13 provided with an operating handle 14 and wire conduits l5 and 16 at each end, adjacent the underside of which are the poles 17 and 18 connecting with the switch bar and the fuses, respectively, the whole being constructed in any well known manner and of any suitable material.

Substantially midway of the platform or base and on cach side thereof, are the vertical supporting members 19 and 2O adapted to engage with guideways 21 and 22 provided on the sides 23 and 24 of the cover Serial No. 1,506.

25. This cover, which forms the essential feature of my invention, is also provided with openings 26 and 27 in the ends 28 and 29 for the wire conduits to extend through and at 30 in the side 24 is provided with an orifice 31 through which extends the switch operating arm 14.

The vertical supporting members 19 and 2Q are threaded at the top to engage with wing nuts 32 adapted to contact with the top 33 of the cover, whereby the cover is securely held in position.

In the centre of this cover is provided a lug or project-ion 34 having an orifice 35 therein. Orifices 36 are also provided in the tcp of the cover supporting members and through the wing nuts at 37 and 38, these orifices being designed to engage with a wire or other flexible means 40, as illustrated in Figure 1, the loose ends of which are designed to pass through the opening in the supporting member and then through one of the openings in the wing nut, then through the opening in the centre lug and through the opening in the opposite supporting member and one of the openings in the wing nut, all as illustrated in Figure 1, where the ends are twisted together and sealed, thus securing the lid or cover in such a way that it cannot be removed without the seal being broken and thereby indicating that it has been tampered with.

It will be understood that a lock of any suitable construction can also be used to secure the loose ends of the wire 40, in addition to a Seal.

To securely lock and retain the switch operating handle 14, I provide a bracket 41 fiXedly secured to the side of the box and having orifices therein, 42, through which a locking wire or other suitable means may be passed and then around the operating handle, the same being finally provided with a seal.

In Figures 6, 7 and 8 is shown a modified form of my improved cover as applied to an ordinary fuse block, 44 indicating the cover proper and 45 the base, while 46 are posts for the fuse plugs 47. The cover of the fuse block, it will be noted, is secured and sealed in a similar manner to that of the switch cover. This modified form represents an outside cut-out adapted to take the place of a switch in front of a meter, the fuses being safeguarded and sealed only when this form my invention is used in empty premises, so that a tenant or anyone else cannot connect Wires and use the power Without the meter being replaced, the seals removed and fuses set in position.

From the foregoing it Will be seen that my improved cover Will eifectually prevent any tampering` with the switch Without it beingat once detected.

As many changes could be made in the above construction and many apparently Widely different embodiments of my invention, Within the scope of the claims, constructed Without departing` from the spirit or scope thereof, it is intended that all matter contained in the accompanying specification and drawings shall he interpreted as illustrative and notJ in a limiting sense.

What I claim as my invention is:

A fuse protector comprising in combination, a cover formed with openings in the ends and in the sides, vertical guidevvays in the sides of the cover, vertically extending supporting standards to slidaloly engage with said guideways, Wing nuts associated With said standards, a projection substantially midway of the cover having orifices therein, seal carrying` means extending through the projection and through the supporting` standards and said Wing nuts for sealing the cover, a bracket fixedly secured to the side of the cover having orifices therein, and iiexible locking means through said oriiices.

ln Witness whereof I have hereunto set my hand.


U.S. Classification337/205, 337/194, 200/15
International ClassificationH01H9/00, H01H9/10
Cooperative ClassificationH01H9/10
European ClassificationH01H9/10