US928685A - Fuse-lighter. - Google Patents

Description

C. C. MYRICK.

FUSE LIGHTER.

APPLICATION FILED DEG. 7, 1908.

Patented July 20, 1909.

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- lill@ CLIFFORD CMYRICK, OF GLOBE,

ASSIGNMENTS, 'TO AMERICAN FUSE LIGII 'CORPORATION OFCALIFO'RNIA.

To all whom 'it 'may conce-rn:

Be 1t known that I, CLIFFORD C. MYRICK, a. citizen ot the United States7 residing at the city of Globe, county of Ghila, andTer Aritory oli-Arizona, have invented new and use tul Improvements in Fuse-Lighters, of which the following 1s a specification. Y In blasting in mines and quarries after the holes are drilled in the rock and loaded with blasting material, a fuse is placed in each hole in contact with the charge of blasting material with which the hole is loaded and `tamping is put around the fuse. which is cut to the proper length before being placed in thehole to enable the operator to light the 1fuse and then to get far enough away from the hole before the explosion takes place The common method of igniting or .firing the fuse 1s tol split the 'end of the fuse with a knife so as to open the powder duct that runs through the fuse and then lightit with a match or candle.

Where there are a number of fuses to be lighted an operator gets nervous and oftentimes one or more fuses will not belighted and consequently the charges of explosive material in the holes will not be exploded. It often happens that there is more or less .water dripping in a mine and thismakes it difficult toignite the fuses.

It is the object of my invention to provide suitable means secured upon the end of the fuse before the same is placed inthe hole to enable the operator to instantly light the fuse when ready without wasting any time whatever in splitting the end ofithe fuse, and also to provide means to instantly light the fuse notwithstanding any moisture that may be dripping in the mine. I accomplish this ob'ect byvthe device described herein and illustrated in the accompanyingl draw` ings, in which;

Figure l is la side elevation of a fragmentof a fuse with one of. my im roved fuse'lighting caps` in position on t e end 'of the fuse.. F1g.j2 is al like view show' l ing the'capand the end of the fuse in central section. Fi .-3 is a View similar to Fig.` 2 of 'amodified orm of cap. l

sans eran AiuZoi'A TERRITORY, Alssioion BY niREoT'NniviisNn Fuse-LIGHTER.

i Speciication o Letters Patent.

Application led December 7, 1908.

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TI-G GO.,V OF LOS ANGELES, QALIFORNIA, A

Patented July 20, 1909.

serial No. 466,317. i

ing of ordinary construction.

T is a fuse lighting cap of inflammable material which tits snugly upon the end of the fuse which is to be lighted.. This cap is preferably 'made of Celluloid as thatvis a material which is impervious to water and which is highly inflammable. In the center of ,the head 8 and projecting into the inte- In the drawings 5 is a' fuse and@ is powder duct thereof, the fuse 'and duetgloe-l 50 A rior of the cap is a tiring pin 9 which is preferably cone shaped and registers with and enters the powder duct 6 of the fuse when thecap islplaced in position thereon. This- 'tiring pin is of the same composition as the .ca-p and is intended to lead the re into 'the powder duct in the fuse. In the form iilus' trated in Fig. 3 this firing pin is omitted. Then caps of this latter kind are use dI prefer to place a small quantity of powderA 10 in the cap before it is placed on the end of the fuse, which powder will beheld in 'Contact with the end of the fuse bythe cap as shown in Fig. 3 when theA cap is imposition for use. l

. Then vthe fuse is to be used where there is moist-ure about the nro'ck that is to be blasted,"the junction' between the outer end of the cap and the fuse can be covered with grease orother' material to make awater tight seal between the capand the body of the fuse.

By the useit my improved fuse lightingcap an operatorcanpreparetheffuses of the required length and place the caps thereon 1.' A fuse lighter comprisinga cap ofin described my 'invention what I flammable vwaterproof. material having a caps than he could light if 1 central ring pin integral with lthe head thereof, Said catp being adapted to snugly t' upon the end o'f'the fuse and the rng pin to Ienter the powder duct in the fuse.

:2. A fuse lighter comprising a. cap of nflalnmable waterproof material adapted to snugly rt upon theend Vof the fuse 111 combination with an vexplosive fusible materialin the end of said cap adapted to lie Within the end of the cap and upon the end of the 2C fuse when the same is in position, for use.

In witness that I claim the foregoing I have hereunto subscribed my name this 27 th day of November, 1908.

CLIFI FORD C. MYRICK.

Witnesses I. E. HARPHAM, S. B. AUSTIN.

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