8989
Patent Summary
An image of the patent summary for number 8989.
Name/Title
8989Entry/Object ID
2025.3.211Tags
1800s, british, shears, sheep, simpsonDescription
8989. Simpson, R., Simpson, H., and Simpson, B. G. June 24. Shears. -- The blades and shanks of sheep or other shears are made in one piece and in the same plane, being usually punched from sheet steel. The shanks are rolled over at the sides where grasped and expand at the bottom into discs, which are jointed together. The joint may be made by an ordinary pin, or as follows:-- The disc of one shank D is dished so as to produce a circular convexity G with lugs H. The disc of the other shank has a hole with recesses, which fits over the convexity G. The opposed faces of the blades are opposite those of the joint to ensure close contact. A V spring is placed between the rolled sides of the shank. Its ends are either fixed or lodged in holes, of which there are several pairs, to admit of adjustment. A notch on the shank D and a pawl on the other shank prevent undue separation of the blades.Cataloged By
studygroup@scissornet.orgCategory
Patent Summaries