US1798865A - Fuse cutter - Google Patents

Description

VIA/ W. a 44 5 J J W WWWW I V fi// m I Earl L. fiz'llzez'mer E. L. BILHEIMER FUSE CUTTER I Filed April 24, 1930 Patented Mar. 31, 1931 UNITED STATES PATENT OFFICE m1. LEO BILHEIMEB, or norms TERRE, mrssouar, assieivoa 'ro sr. were COMPANY, or NEW YORK, 1v. Y., A CORPORATION or new your:

FUSE CUTTER Application filed April 24,

The invention relates to a fuse cutter for severing appropriate lengths of fuse for blasting and similar operations from continuous lengths of the fuse material, and

which is particularly designed for application to a special form of primer box in which the 35 in its upper surface, pendent journal bearings to receive a knife carrying handle, and

a longitudinal slot transacting the guide groove in which the knife blade operates with a draw or slicing cut to insure a clean severance of the fuse without crushing or impairing the end of the latter.

The invention is illustrated in the accompanying drawings, in which Fig. l is a front elevation of the cutter showing the same mounted on a section of the box wall.

Fig. 2 is a section taken on line 2-2 of Fig. 1.

Fig. 3 is a front elevation of the bracket.

Fig. 4 is a plan view of the same.

Fig. 5 is a section on line 5-5 of Fig. 3.

Fig. 6 is a partial sectional elevation of the cutter arm and the knife blade associated therewith.

Fig. 7 is a partial edge elevation of the same.

Referring to the drawings, 1 indicates the base of the bracket, which is of substantially inverted U form and is provided with screw receiving openings by means of which the bracket is secured to the wall of a box or other support a. Formed integrally with the base are spaced side arms 2-2, which are preferably inclined upwardly and are connected by a bridge piece 3, in the top of which is formed a transverse guide 4 for the fuse, said guide comprising an inclined upper surface terminating in a shoulder with a substantially semi-circular groove, which latter, when the cutter has been applied to the box 1930. Serial No. 446,880.

support, is slightly as. a. longitudinal axis of the hole I) in the box wall through which the fuse flis fed. Extending 'longi-.

metal 10 preferably having acrank handle 11 securedito its lower end, the upper end being provided with an open slit 12 with an inclined bott0m 13, which slit is designed to receive the cutterblade or knife proper, which, as shown,

is a relatively thin section of steel '14 having an arcuate and tapered cutting edge 15 and a lower edge which engages the inclinedbottom 13 of the slit 12. The upperendcf the bar 10and the blade 15 are provided with registering openings through which is passed, with a driving fit, a journal pin 16, the endsof which are adapted to engage the bearings? in the manner and form shown in Figs. 1 and 2, said journal pin also serving to lock the bladel l rigidly t0 the end of the bar 10. 1

When the cutter is not in use, the knife bar is removedfroml its bearings 7 on the bracket and preferably stored in the box on the wall of which the cutter is installed. When the fuse is to be cut into appropriate lengths for application to a primer cartridge, the knife carrying bar is engaged with its bearing 7 by slipping the ends of the pintle 16 into the open slotted brackets 6. To effect the cutting of the fuse into lengths, it is unwound from the coil in which it is disposed, and drawn through the open guide 4 in the top of the bridge piece 3 of the bracket and, when the proper length of the fuse extendsbeyond the bracket, the knife bar is swung by its crank handle 11, causing the upper part of the blade 14 to traverse the slot 5 in the bracket, and, because of the shape of the cutting edge of the blade and itseccentricityto its pivotal axis, it effects a slicing cut, severing the fuse clearly and without crushing or marring the same. 7 Y

What I claim is:

1. A fuse cutter comprising a bracket having 7 a base to be secured to a support, spaced lateral arms and a bridge piece spanning the ends of said arms, said bridge piece having a fuse guide groove in its top, pendent bearing lugs on its bottom and a lon itudinal slot transecting the guide groove, a ni-fe bar having a journal pin engaging the bearing lugs and a blade operating in the longitudinal slot. 7 v

2. A fuse cutter comprising a bracket having a base to be secured to a support, spaced lateral arms and a bridge piece spanning the ends of said arms, said bridge piece having anopen sided groove forming a fuse guide in its top, pendent slotted bearinglugs on its bottom and a longitudinal slot transecting the guide groove, a knife bar having a journalpin engaging the bearing lugs and a blade operating in the longitudinal-slot.

3. A fuse cutter "comprising a bracket having a base to be secured to a support, spaced lateral arms and a bridge piece spanning the ends of said armsysaid bridge piece having a fuse guideigroove inits top, vpendent bearing lugs on its bottom and a longitudinal slot :transecting'the guide groove, a knife bar having a longitudinal slit and a-transverse perforation in one end, a knife blade mounted in said slit and havinga perforation registering with that in the bar, and a journal pin fitting theperforations in the bar and blade; whereby the journal :pinis removablyengaged with the bearing lugs and the blade-operates in the longitudinal slot in the bracket. s

4. A fuse cutter comprising a bracket having a fuse rguide groove in its top, journal bearing lugs below the groove and a longitudinal slot transecting said groove,-and ahandle having a knife bladeand a journal pin at one end to'be engaged in thelongitudinal'slot and the bearing lugs respectively. 7

In testimony whereof I aifix my si ature;

EARL LEO BILHEIfiER.

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