William Ray McAlpine
Engineers in Pompano Beach, FL

License number
Utah 154449-2202
Issued Date
Jan 1, 1910
Expiration Date
Apr 30, 1992
Category
Engineer/Land Surveyor
Type
Professional Engineer
Address
Address
Pompano Beach, FL

Professional information

William Mcalpine Photo 1

Fabricated Beam

US Patent:
4442649, Apr 17, 1984
Filed:
Oct 18, 1982
Appl. No.:
6/434962
Inventors:
Robert Birckhead - Deerfield Beach FL
William R. McAlpine - Coral Springs FL
International Classification:
E04C 302, E04H 1206
US Classification:
52693
Abstract:
A fabricated wooden beam including at least two longitudinal wooden members spaced parallel and apart by a plurality of wooden blocks spaced between and along the length of the longitudinal members. A plurality of truss plates, each installed across one side of a block and spanning between each longitudinal member, provide structural integrity. The truss plates are installed in pairs with one across either face of each block at an acute angle to the longitudinal axis of the beam. Alignment of the generally parallel truss plates on one side of the beam is at an acute or preferably right angle to the alignment of the generally parallel truss plates on the opposite side of the beam. The preferred truss plate alignment of truss plates on both sides of the beam is at approximately 45. degree. to the longitudinal axis of the beam so that the beam has structural symmetry and optimal material utilization. Narrow truss plates at each end, tieing the ends of the longitudinal members and the end block more securely together, are designer optional.