Clamping device for use in making mitered joints in pipe sections
OwnerTimothy C. Dearmaninventor
Life of this patent
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Abstract
A clamping assembly particularly useful for aligning abutting ends of pipe sections to form a mitered joint. A plurality of individual clamp assemblies are clamped in circumferentially spaced positions upon one pipe section by a circumferentially extending chain, each clamp assembly having an elongate jack arm which can be clamped in selected positions of circumferential and axial adjustment upon the one pipe section so that the jack arms may be projected to different axial distances from the chain into operative engagement with a second pipe section lying in a plane inclined to axis of the one pipe section.
Claims5
Apparatus for clamping a pair of pipe lengths having confronting ends abutting one another and forming a joint therebetween, said apparatus comprising a flexible member forming a loop of such size as to encircle one of said pipe lengths adjacent its end;
- a plurality of housing members circumferentially spaced about said loop and encircled by said flexible member;
- an elongate jackbar slidably accommodated in each of said housing members for sliding adjustment transversely of said loop and being engaged by said flexible member, each of said jackbars being of such length as to enable one end thereof to extend beyond said joint and overlie the other of said pipe lengths;
- clamp means carried by said one end of each of said jackbars for clamping engagement with said other of said pipe lengths;
- and means for varying the size of said loop when said flexible member encircles said one pipe length whereby said flexible member selectively enables and disables adjustment of said housing members circumferentially of said loop and slidable adjustment of said jackbars relative to their housing members.
Dependencies are inferred from the claim text.