Chain – staple – and horseshoe making – Chain making – Sprocket chain
Patent
1986-01-21
1987-01-13
Husar, Francis S.
Chain, staple, and horseshoe making
Chain making
Sprocket chain
834401, 83620, 83631, 30358, 72454, 29522A, B21L 906
Patent
active
046354379
ABSTRACT:
A device for punching holes in a surveyor's chain and in metal pieces used for repairing the chain and for riveting together the punched chain and metal pieces comprising an elongated vertical housing having an elongated vertically oriented opening extending transversely therethrough and defined by a continuous wall, an upper vertical bore extending from the top of the housing into the vertical opening, a lower female die element received in the lower portion of the opening and having a flat horizontally extending recess therein whose width is equal to that of the chain to be repaired, the female die element also including a pair of spaced holes located on the flat recess, an upper male die member received in the upper portion of the opening and vertically slidable therein, the male die member having a pair of punching rods projecting downwardly, an arbor shaft having a threaded portion received in a threaded portion of the upper bore, a handle for rotating the arbor shaft, the arbor shaft having a lower portion adapted, upon rotation, to engage the upper end of the male die member for urging the male die member downwardly toward the female die member so as to urge the punching rods against a chain portion received in the flat recess on the female die member, whereby, upon continued rotation of the arbor shaft the punching rods will punch holes through the chain portion and pass at least partially into the openings in the female die member, and a lower handle or mounting for restraining rotation of the lower end of the housing. The device also includes rivet blocks to replace the die elements for securing rivets to overlapping prepunched metal strips.
REFERENCES:
patent: 287417 (1883-10-01), Clark
patent: 374464 (1887-12-01), Farrin
patent: 905766 (1908-12-01), Torka
patent: 2248111 (1941-07-01), Nassimbene
patent: 2747362 (1956-05-01), Cox
patent: 3156087 (1964-11-01), Granberg
patent: 3233402 (1966-02-01), Urbaitis
patent: 3412597 (1968-11-01), Rains
patent: 4365401 (1982-12-01), Ogren
Dorman William S.
Husar Francis S.
Jones David B.
Steele, II R. W.
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