Tricks of the Trade 



An entire homemade punch operated by foot 

 power. How to make laminated wood pulleys 



A Foot-Power Punch Press for 

 Light Work 



THIS foot -power punch press was 

 made almost entirely of 2-in. pipe and 

 fittings, built on a wood base 2 in, thick, 

 12 in. wide and 3 1 2 ft. long. The ram A 

 consists of a piece of 1-in. cold rolled steel 

 2 ft. 1 in. long. The bushings BB, in 

 which the ram works, are short pieces of 

 pipe lined with babbit, as shown in the 

 detail Fig. 1. The end on which the 

 socket is fitted is turned to a diameter of 5-4 

 in. The socket 

 is made from a 

 piece of steel 

 tube 1 1 2 in. in 

 diameter with 

 walls li in. 

 thick. The 

 punch is 

 turned from 

 tool steel }i in. 

 in diameter to 

 the required 

 size, leaving 

 enough shank 

 full size to fit 

 in the socket. 

 The punch 

 end is then 

 tempered. 

 The connect- 

 ing arm C 

 between the 

 foot lever and the lever at the top 

 consists of a }/2-^n. pipe flattened on 

 the ends to fit between the parts of each 

 lever. This piece is measured and fitted 

 into place after the other parts have been 

 assembled. The foot lever should be 

 12 in. from the base when the punch is 

 raised as high as it will go in the bearings. 



The die. Fig. 2, is made of a good grade 

 of iron and fitted with a hardened steel 

 bushing. Several of these bushings may 

 be made with holes of varying sizes so 

 that when the punch sizes are changed the 

 bushing to match them may be changed 

 also. 



If it is desired to use the punch on large 



sizes of metal it will be necessary to make 

 the die and holder in one piece, and of 

 hardened tool steel. The die is securely 

 fastened in the die-holder with two 3 2'in- 

 cap screws which fit into slots in the 

 angles GG. — C. A. Butterworth. 



Homemade Laminated Pulleys for the 

 Small Shop 



IN practically every shop cone-pulleys 

 and plain pulleys are needed at some 

 time or other, but for the mechanic of 

 ordinary 



Fig 2 



H 





means they 

 are expensive 

 to buy. They 

 can be turned 

 from solid 

 .blocks on a 

 lathe, but a 

 lathe is not al- 

 ways available 

 and even then 

 the cost is con- 

 siderable. By 

 the following 

 simple method 

 pulleys which 

 will not warp 

 or split, and 

 which will give 

 as good results 

 as the expen- 

 sive pulleys, 

 can be made at practically no expense. 



Thin wood is easy to get and is easy to 

 cut, and from this the pulleys are made. 

 Hard wood should be used if it can pos- 

 sibly be obtained. On a scroll saw, cut 

 the wood into circles a little larger than 

 the size of pulley wanted. Cut enough 

 disks to build the pulley up to the right 

 thickness. In each disk, drill a hole for 

 the shaft, which should fit tightly. 



Glue the disks together with the grain 

 of each running in a different direction; 

 allow a little extra thickness for truing up 

 afterwards. Be sure the surfaces to be 

 glued are free from all dirt and grease. 

 Use good glue; if the common kind is 



jVM>lror\ 

 Punch press made of pipe and fittings, which are set on a 

 wood base. The punch is operated with a foot lever 



625 



