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:
Dec. 30, 1986
Filed:
Oct. 04, 1985
Hans Heist, Weisbaden, DE;
Dieter Toepfer, Heidenrod, DE;
Sylvia Britzke, Wiesbaden, DE;
Eberhard Schoernig, Taunusstein, DE;
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
A device 1 for engaging and disengaging rollers rollers 14, 15, which are arranged horizontally in pairs, with the shaft ends 18 of the upper rollers being provided with ball bearings 6 which can be lifted and lowered and are guided in bracket-type guides 7. The webs 3, 4 of U-shaped slide members 17 are guided in friction bearings 2, and said slide members can be shifted to and fro by a shifting path X. The webs 3, 4 are provided with recesses 9, 10, each of which possesses a bevelled edge 5a, 5b. The ball bearings 6 roll along the bevelled edges such that in the engaged position the ball bearings are pressed down in the guides 7 by the upper edges 5b, and in the disengaged position they are raised by the lower edges 5a. The recesses 9 provided in the lower web are staggered with respect to the recesses 10 provided in the upper web 4 by the shifting path X. Each slide member 17 is equipped with a gear rack 11 engaged by a gear wheel segment 12, which by use of a swivelling lever 16 can be swivelled about a shaft 13 supported in the side plate 20. The lower rollers 14 are stationarily supported in the side plates 20.