Apparatus for cracking plastic sheet

Severing by tearing or breaking – Breaking or tearing apparatus – Movable breaking tool

Patent

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Details

225 965, B26F 300, C03B 3302

Patent

active

040098133

ABSTRACT:
A small anvil is provided below the score line and is resiliently connected to a manually manipulated head above the score line such that the user can push downwardly on the head in order to deflect the sheet material through a desired bend angle along the score line. The head is resiliently supported from a block slidably mounted on an underlying table. The same table also supports the anvil, and the support preferably comprises support rods which extend obliquely inwardly from outside the edge of the sheet so that the head is particularly useful in trimming segments of plastic sheet of less than a foot in longitudinal dimension.

REFERENCES:
patent: 787122 (1905-04-01), Semmer
patent: 2053375 (1936-09-01), Nicholas
patent: 2212599 (1940-08-01), Hall
patent: 3259286 (1966-07-01), LeGras
patent: 3567086 (1971-03-01), Wark et al.
patent: 3726453 (1973-04-01), Shaffer
patent: 3792989 (1974-02-01), Dahlberg et al.

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