Chain coupling device and method of manufacture thereof

Details Chain coupling device and method of manufacture thereof Chain coupling device and method of manufacture thereof

1977-03-25

1977-12-20

Lanham, C.W.

Chain, staple, and horseshoe making

Chain making

Blanks and processes

59 85, 59 88, F16G 1504, B21L 1108, B21L 1300

Patent

active

040634132

ABSTRACT:
There is disclosed an improved coupling device or "link" for interconnecting separate lengths of chain and/or attachments thereto and/or for repairing broken chains and method of producing same; said coupling link comprising two half-link units each of which comprises a laminar assembly of two or more relatively nested and interfittingly configured strap-like members. These members are stamped out in generally U-shaped plan form from sheet or plate stock; the legs thereof then being twisted while the intermediate bow-shaped portions of the members remain flat-wise in the planes of the original stampings. Such half-link units may then be assembled and fabricated from only a minimized number (one or two) of differently configured strap-like members disposed in laminate relationship. The bow-shaped portions of the members of each sub-assembly are then structurally integrated as by a welding process or the equivalent; and the terminal ends of the legs thereof (which are apertured) are then interdigitally mounted upon a common interconnecting pin.

REFERENCES:
patent: 2406712 (1946-08-01), Robbins
patent: 2422844 (1947-06-01), Mullaney
patent: 2972223 (1961-02-01), Devonshire
patent: 3104519 (1963-09-01), Kelting
patent: 3453822 (1969-07-01), Crook
patent: 3846978 (1974-11-01), Schreyer
patent: 3974640 (1976-08-01), Schreyer

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