CHARLES T WRIGHT
Broker in Springfield, MA
License number
Massachusetts 26878
Issued Date
Aug 1, 1977
Expiration Date
Jan 14, 1980
Type
Salesperson
Address
Address
Springfield, MA 01106
Personal information
See more information about CHARLES T WRIGHT at radaris.comName
Address
Phone
515 Great Plain Ave, Needham, MA 02492
5 Depot St, Townsend, MA 01469
14 Conant Rd, Framingham, MA 01702
65 Robinson St, Lynn, MA 01905
Professional information
See more information about CHARLES T WRIGHT at trustoria.com
Mobile Shoring Rig For Excavation Of Trenches
Mobile Shoring Rig For Excavation Of Trenches
US Patent:
4002035, Jan 11, 1977
Filed:
Jul 11, 1975
Appl. No.:
5/595366
Inventors:
Charles V. Wright - Springfield MA
International Classification:
E02D 1900
US Classification:
61 41A
Abstract:
Mobile shoring rig to be used during excavation of trenches for laying underground pipe of varying diameter, includes a self-propelled carrier movable at ground level straddling the margins of the trench. A shoring frame supported within the carrier is vertically movable relative to the carrier for raising and lowering the frame into the trench being straddled by the carrier. The shoring frame includes a plurality of individual sheets or plates carried by a frame which are vertically movable with and relative to the frame on a plurality of longitudinally spaced guideways. The plates are of varying width to span one or more of the longitudinally spaced guideways and are slidable thereon for vertical movement together with and independently of the shoring frame.