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:
Apr. 15, 1986
Filed:
Mar. 16, 1984
Kurt Huber, Arbon, CH;
Armin Kobler, Oberriet, CH;
Aktiengesellschaft Adolph Saurer, Arbon, CH;
Abstract
The needle thread-break monitor for embroidery machines comprises a double-armed rocking lever acting as a switch in an electrical circuit of an alarm system. The rocking lever is mounted on a bearing shaft forming one pole or terminal of the switch. The other pole or terminal of the switch is formed by a limit or abutment shaft arranged substantially vertically above and extending substantially parallel to the bearing shaft. The arm of the rocking lever not having a thread guide cooperates with the limit shaft, which carries a sleeve of electrically insulating material forming a stop limiting the open position of the switch. The arm of the rocking lever having a thread guide cooperates with the sleeve. The sleeve is rotatable between a terminal or limit position on the terminal or limit shaft enabling electrical contact and another limit position inhibiting electrical contact. The sleeve serves as a support for a needle thread in the relaxed or non-tensioned state. These measures permit the design of a simple yet reliable needle thread-break monitor which fulfills all requirements.