Trencher tooth pattern demonstration fixture and method

Details Trencher tooth pattern demonstration fixture and method Trencher tooth pattern demonstration fixture and method

1989-07-05

1990-06-12

Apley, Richard J.

Education and demonstration

Means for demonstrating apparatus, product, or surface...

Machine mechanism

40124, 211 40, G09B 2502

Patent

active

049328816

ABSTRACT:
A trencher tooth pattern demonstration fixture for simulating positions of trencher teeth on an elongated trencher chain having a plurality of pitches spaced about the length of the chain. The demonstration fixture includes an elongated base having an elongated opaque indicia representative of the trencher chain and transverse pitch indicia representative of trencher chain pitches. A plurality of trencher tooth receiving slots are formed in the base adjacent the pitch indicia at spaced positions on opposite sides of the chain indicia. Trencher teeth are positioned in the slots in a desired pattern with respect to the chain and pitch indicia for visual evaluation and display.

REFERENCES:
patent: 2288317 (1940-05-01), Greenberg
patent: 4684132 (1987-08-01), Wolford
patent: 4685647 (1987-08-01), Calhoun
patent: 4712679 (1987-12-01), Lowe
Melroe Company, Trencher Chain Manual, Revised Jun. 1989, 52 pages.
Vermeer Manufacturing Company, "VH-18 Trencher Attachment", Operator's Manual with Parts Lists, Revised Apr. 1986, Title pp. & pp. 0-1, 0-2, 6-1 & 6-2.
J. I. Case, "Digging Chain and Teeth", Parts Catalog H15651, Sep. 1981, pp. ii, iii, 5-1, 5-2, 8-1 and 8-2.

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