Heavy duty pipe spreader

Details Heavy duty pipe spreader Heavy duty pipe spreader

1974-09-10

1976-02-10

Lanham, C. W.

Metal deforming

By relatively receding work-engaging tool-faces

Embodying three or more tools

72370, 72398, 72466, B21D 4102

Patent

active

039370542

ABSTRACT:
A heavy duty pipe spreader to open formed steel-line pipe, approximately 40 feet long, of approximately 0.250 to 0.750 wall thickness, so as to obtain an approximate 2 inch permanent edge separation prior to O.D. sub-arc welding. The pipe spreader is comprised of an approximately 45 feet long boom, pivotally supported at one end by a vertically adjustable base support and intermediate its length by four hydraulically actuated devices under the boom and mounted to the floor; these devices retract as the pipe telescopes onto the boom. A device at the extreme front of the unit centers and assists in stabilizing the pipe and unit during spreading. The pipe is received on five support rollers, the first of which drives the other four, and all of which are fixed in place and rotate only to move pipe over the vertically adjustable boom. Attached to the boom structure are five sets of pivoted arms which are operated by wedge devices attached to a center pull rod. A large hydraulic cylinder assembled at the base support end of the machine applies the load requirements to the pull rod for actuation of the pivoted spreader arms. A roller is pivotally mounted on each end of each spreader arm so as to eliminate excessive friction and marking during spreading of the pipe.

REFERENCES:
patent: 2007996 (1935-07-01), Baker
patent: 2734120 (1956-02-01), Sensenig
patent: 2845989 (1958-08-01), Ewaldson et al.
patent: 3285490 (1966-11-01), Roper
patent: 3362603 (1968-01-01), Bauer et al.
patent: 3397564 (1968-08-01), Schroeder
patent: 3462059 (1969-08-01), Bauer et al.
patent: 3633813 (1971-12-01), Looney
patent: 3647131 (1972-03-01), Hahne
patent: 3765665 (1973-10-01), Ijork
patent: 3770927 (1973-11-01), Christopher

Affiliated with

Also associated with

Rating

Heavy duty pipe spreader does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heavy duty pipe spreader, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heavy duty pipe spreader will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-144473