John W Mydels

US Patent:

40478238, Sep 13, 1977

Filed:

Sep 7, 1976

Appl. No.:

5/721104

Inventors:

John W. Mydels - LaPorte IN

Assignee:

Allis-Chalmers Corporation - Milwaukee WI

International Classification:

F16B 704
A01B 1500

US Classification:

403188

Abstract:

A flexible earth-working tine is releasably fastened to a transverse tool bar by use of a pair of identical clamping parts, a keeper element and releasable fastening means. The clamping parts are disposed on vertically opposite sides of the tool bar and have corresponding front ends with aligned vertical openings to receive a bolt extending downwardly therethrough, the bolt also connecting with the mounting end of the flexible tine. Corresponding rear ends of the clamping parts are maintained in assembled relationship by a keeper element and the flexible tine extends from its mounting end in encircling relation to the tool bar with an upwardly extending portion passing between transversely spaced fingers extending rearwardly from the upper and lower clamping parts. The upwardly extending portion of the earth-working tine disposed between the fingers serves to maintain the keeper element in its operative position on the fingers. The rearwardly extending fingers of the clamping parts prevent transverse movement of the tine and a single fastening bolt, with its cooperating nut, maintains the earth-workig tine and clamping parts in rigid clamped relation on the tool bar.

US Patent:

39813673, Sep 21, 1976

Filed:

Sep 29, 1975

Appl. No.:

5/617935

Inventors:

John W. Mydels - La Porte IN

Assignee:

Allis-Chalmers Corporation - Milwaukee WI

International Classification:

A01B 6104

US Classification:

172265

Abstract:

A self-restoring spring trip cultivator shank assembly adapted to be supported from a mounting bracket secured to the transverse tool bar of a ground-working agricultural implement. The lower end of the cultivator shank carries a ground-working tool and the forward end extends between a pair of laterally spaced side plates which are supported by the mounting bracket contiguous the under surface of the tool bar, the forward end of the cultivator shank being adapted to pivot about the peripheral surface of a pivot pin which extends between and through the laterally spaced side plates. An abutment member in the form of leaf spring which extends in overlying contacting engagement to the upper surface of the cultivator shank is suitably held against the forward end portion of the cultivator shank to maintain the cultivator shank in pivotal bearing relation against the peripheral surface of the pivot pin. A loading spring subassembly supported from the mounting bracket is adapted to engage the rearward end of the leaf spring whereby to transmit the spring loading force to the leaf spring and thus to the cultivator shank which is in underlying contacting relation to the leaf spring. When the tool carried by the lower end of the cultivator shank engages an obstacle such as a rock, the cultivator shank will pivot upwardly and forwardly about the pivot pin carried by the side plates, this movement of the cultivator shank causing compression of the loading or compression spring.