Metal deforming – By use of tool acting during relative rotation between tool... – Tool orbiting or rotating about an axis
Patent
1980-02-07
1982-05-04
Larson, Lowell A.
Metal deforming
By use of tool acting during relative rotation between tool...
Tool orbiting or rotating about an axis
72123, 72125, 29727, B21D 3906
Patent
active
043275672
ABSTRACT:
An improved expander of this invention is used for expanding tubes into tube sheets and flaring the ends extending therefrom, such as is common practice in the manufacture of boilers. The improved expander includes both straight rolls for expanding the tubes and tapered rolls for flaring the tube ends. The rolls are carried by a cage that encircles a tapered mandrel, which when forced through the cage, causes the rolls to move relatively outwardly to deform or expand the tube. The expander also includes a thrust member that has an end that is engageable with the face of the tube sheet and a stop member carried by the cage that engages the thrust member, when the rolls have entered the tubing to the proper distance, to deform the tube the desired amount as well as flaring the ends to the proper position.
REFERENCES:
patent: 2359859 (1944-10-01), Jarvis
patent: 2608114 (1952-08-01), Martin et al.
patent: 2905030 (1959-09-01), Cogsdill
patent: 3320832 (1967-05-01), Jensen
patent: 3353386 (1967-11-01), Fisher
patent: 4134286 (1979-01-01), Martin
Dresser Industries Airetool Catalogue No. 74.
Dresser Industries Inc.
Larson Lowell A.
Van Winkle Roy L.
LandOfFree
Tubing expander for boiler tubes or the like does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tubing expander for boiler tubes or the like, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tubing expander for boiler tubes or the like will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-876389