I

Tallow............   50 parts

Caster oil, crude....   20 parts

Fish oil............   20 parts

Colophony.........   10 parts

Melt on a moderate fire and stir until the mass cools.

II

Melt 250 parts of gum elastic with 250 parts of oil of turpentine in an iron, well-closed crucible at 122° F. (caution!) and mix well with 200 parts of colophony. After further melting add 200 parts of yellow wax and stir carefully. Melt in 750 parts of heated train oil, 250 parts of tallow, and to this add, with constant stirring, the first mixture when the latter is still warm, and let cool slowly with stirring. This grease is intended for cotton belts.

III

Gutta-percha......   40 parts

Rosin.............   10 parts

Asphalt...........   15 parts

Petroleum.........   60 parts

Heat in a glass vessel on the water bath for a few hours, until a uniform solution is obtained. Let cool and add 15 parts of carbon disulphide and allow the mixture to stand, shaking it frequently.

Directions For Use

The leather belts to be cemented should first be roughened at the joints, and after the cement has been applied they should be subjected to a strong pressure between warm rollers, whereupon they will adhere together with much tenacity.

Preservation Of Belts

In a well-covered iron vessel heat at a temperature of 50° C. (152° F.) 1 part by weight of caoutchouc, cut in small pieces, with 1 part by weight of rectified turpentine. When the caoutchouc is dissolved add 0.8 part of colophony, stir until this is dissolved, and add to the mixture 0.1 part of yellow wax. Into another vessel of suitable size pour 3 parts of fish oil, add 1 part of tallow, and heat the mixture until the tallow is melted; then pour on the contents of the first vessel, constantly stirring—an operation to be continued until the matter is cooled and congealed. This grease is to be rubbed

on the inside of the belts from time to time, while they are in use. The belts run easily and do not slip. The grease may also serve for improving old belts. For this purpose the grease should be rubbed on both sides in a warm place. A first layer is allowed to soak in, and another applied.

To Make A Belt Pull

Hold a piece of tar soap on the inside of the belt while it is running.