Very small hole and then cut a small diagonal nick along the edge of the lacc to form a small fishhook type of barb As the lace tends to pull back through the hole this barb flares out and prevents it from going farther

Pulley sicte Outside

Fig. 311.—The double lock laoo is good for hea%'y duty.

5-inch belt

Fio. 312.—Suggested spacing of hole« for common belt laces.


366. What tools and supplies would you recommend for a harness repair kit on the farm?

357. (a) What kinds of harness rivets are available? (6) What are the particular advantiiges of each kind?

368. (a) What are the steps of the proccss of making a waxed sowing thread? (6) What kind and size of thread is used? (c) How many strands are needed for making a waxed thread, and about how long should they be? (d) Why is the thread torn rather than cut? (e) Just how may it be torn easily? (f) How may thread be kept or stored so as not to become tangled? {g) Why should the strands be assembled with the ends offset or staggered? (A) Should all strands be the same Ie.ngth? (i) Should the ends be waxed before the threads are twisted? (j) How may wax be kept for convenience in handling? (k) Just how are the threads twisted? (I) What are indications of too much twist? Of insufficient twist? (m) Just how are the needles fastened to the ends of the thread? {n) What remedy may be used in case the thread is too sticky?

369. (a) Which side of a piece of leather should be skived or beveled preparatory to splicing? Why? (ft) What tools are used for skiving?

360. (a) How much should the ends of two pieces be lapped for a sewed splice? (6) Explain and be able to demonstrate just how the pieces should be placed in the clamp, (c) Describe a simple stitching clamp or vise that can easily be made in the shop, (id) now far should the top edges of the splice project above the jaws of the clamp? (e) Describe the proccss of punching the holes and threading the needles through them. (/) Where should the awl be kept while the stitching is being done? (g) How many holes should be punched with the awl at one time? (h) How far should the stitches be from the edge of the leather, and how long should they be? (i) Should the long way of the diamond-shaped awl hole be vertical or horizontal or some other way? (j) Explain and be able to demonstrate just how to make the crossover when the splice is half stitched. (¿) Explain and be able to demonstrate just how to anchor the threads when the stitching is completed. (I) What procedure may be used in sewing a splice to avoid the crossover?

361. (a) What different ways may be used in fastening a buckle to a strap? (6) Just how would you prepare the strap for sewing the buckle on?

362. (a) What procedure would you use for thoroughly washing a harness? (6) What kind of soap or other material would you use, and how much? (c) How may a harness be oiled? (d) Should the leather be thoroughly dry before oiling? Why? (e) What kind of oil is recommended?

363. (a) Under what conditions are leather belts usually preferred to other kinds? (b) How are rubber belts made? Canvas belts? (c) What are the particular advantages and disadvantages of rubber and canvas belts?

364. (a) What are the main important points to be observed in the care of belts? (6) What kinds of belt dressing, if any, should be used on leather belts? On rubber belts? On canvas belts? (c) What is the object of applying belt dressings? (<d) What materials should bo avoided in belt dressings? (e) Which side of a leather belt should run next to the pulley? Which side of a rubber belt?

366. For what two main reasons arc large pulleys preferred over small ones?

366. (a) What is meant by open and by crossed-belt drives? (6) Which type is preferred? (c) Why is it not always used? (<i) Why are vertical belt drives not desirable?

367. What particular advantages have V-belts and pulleys over flat belts and pulleys?

868. (a) State a simple rule that may be used in problems involving pulley sizes and speeds. (6) Give one or two other forms of this rule or formula, (c) Assume a problem of your own and demonstrate its solution by the application of this rule.

369. (a) Under what conditions would you recommend the use of metal belt laces and under what conditions leather laces? (6) What are the most commonly used types of leather laces, and under what conditions would each be recommended?

370. (a) What, procedure should be followed in preparing the ends of a belt for lacing with leather thong? (6) What size holes should be punched? (c) What kind of holes is preferred? Why?

371. What is the general system of threading the thong through the holes?

372. In what ways may the ends of the thong be fastened to prevent them from becoming unlaced?


Boss, Dent, and Whit»: "Mechanical Training." Horb and Behreneks: "Farm Engineering." Rorhl: "Farmer's Shop Book." Cornell Extension Butt. 225, Repairing Harness.

Cook, Scranton, and McColly: "Farm Mechanics Text and Handbook." Radebaugh: "Repairing Farm Machinery."

Was this article helpful?

0 0
Woodworking Tools and Installation Tips

Woodworking Tools and Installation Tips

There are a lot of things that either needs to be repaired, or put together when youre a homeowner. If youre a new homeowner, and have just gotten out of apartment style living, you might want to take this list with you to the hardware store. From remolding jobs to putting together furniture you can use these 5 power tools to get your stuff together. Dont forget too that youll need a few extra tools for other jobs around the house.

Get My Free Ebook

Post a comment