The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 16, 1976
Filed:
Oct. 10, 1974
Pierre Frappe, Lyon, FR;
Verdol S.A., Caluire, FR;
Abstract
A punching machine for the cards or paper bands used in jacquards, dobbies and the like, comprises horizontal punches individually actuated by pusher means through presser rods which may be selectively brought to an ineffective oblique position. Each presser rod is attached to a needle itself attached by its upper end to a vertical rod. All these vertical rods are alternately raised and permitted to return downwardly so as to reciprocate in front of individual electromagnets which are selectively energized to retain some of the said vertical rods at their raised position. The vertical rods are disposed in successive longitudinal rows and the electromagnets are arranged in corresponding superposed horizontal elongated banks, the vertical rods of each row terminating upwardly short of the next bank of electromagnets in order not to interfere with them. The electromagnets are of the U-shaped type with the poles one above the other at a quite short distance from the rods, in order that each rod may be attracted and retained frictionally by its corresponding electromagnet.