Metal deforming – By use of tool acting during relative rotation between tool... – During rotation of work
Patent
1991-07-17
1992-01-14
Larson, Lowell A.
Metal deforming
By use of tool acting during relative rotation between tool...
During rotation of work
B21D 1704
Patent
active
050799401
ABSTRACT:
Roll grooving apparatus is pivotally mountable on the support rails of a power drive unit by which the apparatus is driven and comprises a lower support including a drive shaft driven by the power unit and including the lower grooving roll, and an upper support member pivotally interconnected with the lower support member and rotatably supporting the upper grooving roll. A lever arm is pivotally mounted on the lower support member and is interengaged with the upper support member through a pin and slot arrangement, whereby pivotal displacement of the lever arm imparts pivotal displacement to the upper support member and thus movement of the upper grooving roll toward and away from the lower grooving roll. The lower support includes a stop which limits displacement of the lever in the direction which moves the upper grooving roll towards the lower grooving roll, thus to assure a desired depth for the groove in a workpiece, and the pivotal interconnection between the upper and lower supports is adjustable to provide for adjusting the groove depth and accommodating different pipe or tube sizes and thicknesses. The adjustment enables using the stop on the lower support member as a constant in connection with pipe size and thickness variables and enables optimizing the leverage advantage and the direction of application of force of the upper grooving roll relative to the lower grooving roll.
REFERENCES:
patent: 537429 (1895-04-01), Alexander
patent: 666672 (1901-01-01), Hoffman
patent: 1186145 (1916-06-01), Stowe
patent: 1205605 (1916-11-01), Eligh
patent: 1810342 (1931-06-01), Bulger
patent: 2312225 (1943-02-01), Wilkinson
patent: 2506657 (1950-05-01), Webster
patent: 2809687 (1957-10-01), Ogle
patent: 2975819 (1961-03-01), Costanzo et al.
patent: 3015502 (1962-01-01), Frost et al.
patent: 3541826 (1970-11-01), Halliburton
patent: 3903722 (1975-09-01), Thau et al.
patent: 3995466 (1976-12-01), Kunsman
patent: 4041747 (1977-08-01), Elkin
patent: 4144733 (1979-03-01), Whitten
Asada, advertisement for power driven threading machine Victaulic, catalog sheet, 2 sides, for Series 226S Roll Groover, copyright 1990.
Gress Paul W.
Gulden Colman A.
Pulver Dale A.
Emerson Electric Co.
Larson Lowell A.
LandOfFree
Roll grooving apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Roll grooving apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Roll grooving apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-532946