Metal deforming – Tool and/or tool holder – Having unitary tool-face
Patent
1980-05-15
1981-11-17
Larson, Lowell A.
Metal deforming
Tool and/or tool holder
Having unitary tool-face
72479, 72482, 72705, 294 97, B21D 112
Patent
active
043003826
ABSTRACT:
A tool for straightening indentations in sheet metal has a pair of levers each having first and second legs disposed angularly to one another and a pivot pin for journally mounting the levers together for pivotable movement about the pin. The levers may be pivoted from a position in which the axes of the first legs are superposed upon each other for insertion of both first legs simultaneously into a hole formed in the sheet metal for receiving the legs. The levers may then be pivoted to a second position in which the first legs face in opposite directions from the pivot pin and engage the sheet metal about the hole. In one embodiment the axes of the second legs in the second position are disposed angularly to one another and a spreader member is removably secured to the legs. A clevis member being secured to the spreader member for application of a pulling force. In two other embodiments the axes of the second legs are superposed upon each other and a clevis member is directly removably secured to both legs.
REFERENCES:
patent: 288467 (1883-11-01), McGuiggan
patent: 764281 (1904-07-01), Duncan
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patent: 3577881 (1971-05-01), Markovics
patent: 3844149 (1974-10-01), Hansen
patent: 4040287 (1977-08-01), Wivinis
patent: 4116035 (1978-09-01), Malarsky
patent: 4235090 (1980-11-01), Wightman et al.
Larson Lowell A.
Ruderman Alan
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