528 



FUZE, SAFETY 



1011 



or other deterioration, and I cut off the same fuze in such lengths as occasion may 

 require for use ; each of these lengths constituting, when BO cut off, a fuze for blast- 

 ing of rocks and mining, and I uso them either under water or on land, in quarries 

 of stone and mines for detaching portions of rocks, or stono, or mine, as occasions 

 require, in the manner long practised by, and well known to, minors and blasters of 

 rocks. 



' At the left-hand end of an apartment which is 65 ft. long, is made an enclosed 

 recess or closet of about 2 ft. square, and 6 ft. high, with a door or doors in front ; 

 in which closet, at about the height of 4 ft. 10 in., is placed a wooden shelf, about 

 1 in. thick at least, extending the whole length and breadth of such closet. In tho 

 centre of this shelf is made a hole, into which hole is inserted a collar. This collar 

 is of metal, in form the frustum of a cone inverted. It is 3 in. long, 2 in. diameter 

 at the upper end, and l in. at the bottom ; through the centre of this is a hole of 4 

 an inch diameter at tho top, and ^ths of an inch diameter at tho bottom. Around 

 this in a circle are twelve holes of about gth of an inch diameter, which converge 

 towards a centre hole at the bottom, so as to bo separated from it only by a fine edge 

 of metal. Fig. 1011, D is a vertical section of the collar ; this collar when placed in 

 tho hole in the shelf a a, projects both above and below the wooden shelf. In the 

 upper projecting part of the cone or collar is then to bo placed a common funnel, A, 

 12 in. high, and 10 in. in diameter at the top ; around this funnel, at about 10 in. 

 high from the before-mentioned shelf, is placed a ring made of cane, marked cc, and 

 supported by a small frame of two or more pillars, resting on the before-mentioned 

 shelf. At about 2 ft. 6 in, high from the floor of this room, and passing through the 



said closet, and extending the whole 

 length of tho said room, 65 ft. long, 

 is a stage or shelf, or bench ; tho 

 outside of this stage, or shelf, or 

 bench, has a ledge or raised edge 

 rising 1 in. above its surface, and 

 on a similar raised edge on the in- 

 side, rising 1 in., is a lino rack 

 with teeth or cogs, twenty teeth to 

 a foot. This stage, or shelf, or 

 bench, is intended to support 

 thereon a machine, being part of 

 the apparatus thus used by mo in 

 my invention, called the monkey; 

 which monkey consists, first, of a 

 plane piece of board 20 in. long 

 and 6 in. wide, supported by, and 

 running on, three wheels of l.J in. 

 diameter : on this board, supported 

 by, and turning in, two centres, 

 is a transverse axle placed quite 

 across the plane bed of the monkey, 

 supported by brackets, and turn- 

 ing round in holes made in the 

 brackets, on the inside end of which 

 is fixed a wheel of 10 in. diameter. 

 Close to this wheel, and directly 

 over tho lino rack, is placed on tho 

 said axle a pinion, which works 

 on tho cogs of the line-rack, on 

 the side of which wheel at its outer edge are twenty-four teeth or cogs ; these teeth 

 or cogs work into corresponding teeth on the inner circle of another wheel, whicli has 

 two circles of teeth or cogs, the inner and smaller circle working as already described, 

 in those of tho former wheel, and the outer circle of cogs working into a second 

 pinion: connected with this pinion is a crook, and to the crook the threads of twine 

 or other material are attached for twisting. A string or cord is fastened to the board 

 of the monkey, and stretching along tho stage, or shelf, or bench, passes over a pulley, 

 and returning through holes made in tho supports of tho stage, or shelf, or bench, is 

 attached to a winding roller ; in this situation of tho apparatus twelve balls of twino 

 or other material intended to form the fuze are placed in tho recess or closet on a floor 

 raised there for that purpose 6 in. higher than tho floor of tho room, and the running 

 threads from these balls are each led perpendicularly up through holes of 1 in. 

 diameter, made for that purpose in a circle of 12 in. diameter in the shelf in whicli tho 

 before-mentioned collar is placed, and also perpendicular to and passed from tho out- 



