21002
Patent Summary
An image of the patent summary for number 21002.
Name/Title
21002Entry/Object ID
2025.3.290Tags
needs date, british, scissors, shears, hatfield, furnissDescription
21,002. Hatfield, W.B., and Furniss, W.H. Dec. 2. Scissors and shears, making. The metal blank S set edgewise is first forced into the mould A by the die C, and then placed on its side in the mould D and pressed out to form the bow round the boss E. After passing through a second pair of dies giving the final form, the thin web over the bow is punched out by the tool shown in Figs. 5 and 6. A clamping-block H, normally held up by springs, is brought down by a spring M on the punch F before the latter reaches the work.Cataloged By
studygroup@scissornet.orgCategory
Patent Summaries