Presses – Automatic or material triggered control – Of actuating means
Patent
1991-10-02
1993-02-23
Hornsby, Harvey C.
Presses
Automatic or material triggered control
Of actuating means
100 53, 100 98R, 100288, 100902, B30B 1514, B30B 124, B30B 932
Patent
active
051880229
ABSTRACT:
An apparatus for crushing workpieces includes a drive mechanism having a gear reduction train and a moveable rack member which is centered above a compression plate for even, linear force transmission. Force is transmitted to the rack member on two opposite sides thereof by a pair of pinions which engage opposite rows of rack teeth. The compression plate is integral with a pair of opposite guide sleeves, which are mounted for sliding movement with respect to vertically extending guideposts. A crimper mechanism is mounted to the compression plate for crimping the workpiece prior to compression. The combination of the improved drive train, which prevents jamming of the apparatus due to uneven force transmission, and the crimper mechanism allows a relatively small motor to be used in the unit, which increases its portability, economy and affordability. An additional aspect of the invention involves an overload sensor arrangement, which causes the apparatus to reverse in mid-stroke if too much compressive force is being generated between the compression plate and the workpiece. A door interlock switch arrangement makes the apparatus safer for use by children or other persons.
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Catalog pages 12 and G91 from Hammacher Schlemmer catalog, 2 page document (attachment A) dated Dec. 2, 1991 relating to can crusher product by Sjoberg, and 8 page document (attachment B) relating to Sjoberg can crusher product dated 1991.
Benson John D.
Erickson Ivan B.
Benson John D.
Gerrity Stephen F.
Hornsby Harvey C.
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