Patent GB-719541-A (GB)
Title: Improvements relating to the construction of buildings made of standardized elements
IPC: E04B2/30
Filed: 1951-04-14
Abstract: 719,541. Erecting prefabricated buildings; walls and floors; building stabs; foundations. BONNET, F. April 14, 1951, No. 8748/51. Classes 20 (1), 20 (2), 20(4) and 87 (1) A method of erecting buildings of prefabricated standard elements comprises (a) setting a horizontal concrete bed 6 covering the central portion of transverse, withdrawable irons 2, (2) erecting a scaffolding 8 ... 10, adjusted to the vertical, on the irons 2, (3) mounting panels 13 and posts 17 (in the form of narrow, transverse pane's) on the bed 6, the pane's 13 and posts 17 being maintained in position by interconnecting hooks 19, see Fig. 8, and by vertical bondings 18 of mortar poured between their abutting edges, and (4) filling mortar between the bed 6 and the lower edges of the panels 13 and posts 17. As applied to the erection of the house comprising a basement, ground floor and first storey, tapered, tubu'ar irons 2, Figs. 5 and 6, are laid transversely on a slab 1- of concrete and adjusted by wedges to present a truly horizontal surface. Angle bars 4, having welded pieces 4a which fit between the irons 2, are then bolted to the irons 2 to provide a box for the bed 6 which is marked before setting, e.g. by a rack, Fig. 4 (not shown), to provide channels 6a, 6b for the wall clements. After the bed 6 has set, the bars 4 are raised by wedges 7, Fig. 6. a straight strip 11 is located against the outer bar 4, and a scaffolding comprising uprights 8 and frame members 9, 10 is secured to the irons 2, the upper ends of the uprights 8 carrying further angle bars 12 with wedges 12a. Concrete panels 13, having horizontal and vertical ribs, as 13a on one side, are then positioned against the strip 11 and wedges 12a, where they are temporarily secured by hooks 14, Fig. 6, and a horizontally ribbed post or narrow panel 17 is placed on the inside of each panel joint, where it is held by hooks 19, received in holes in the horizontal ribs. The posts 17 and panels 13 are then connected together by pouring mortar 18 between their grooved abutting edges and into the channels 6a. 6b to anchor hooks 16, 22 depending from the lower ends of the panels 13 and posts 17. The corners are formed by elements 20 and posts 17, Fig. 11. the inner grooves being filled with cement by means of a facing board 21. The posts for the basement are shorter than the panels 13 to accommodate architrave elements 23, Fig. 12, which are grooved on the outer face to fit the vertical ribs of the panels 13 and support ground floor beams 25, the latter being of inverted U section with spaced connecting portions 25a which are notched on the underside to receive wooden blocks 26 for attaching a ceiling 44. The upper corners of the beams 25 have rebates to take flags. The cavity between the ends of the beams 25, the element 23, and the top of the pane's 13 is filed with concrete 29 with reinforcements 30 to form a fresh starting base. The ground floor walls comprise pairs of panels 32 of equal height, spaced by posts 17 to form cavities for concrete, slag, or neutralized earth. The outer panels 32 engage the projecting tops of the panels 13 and are further positioned by the raised scaffolding 8 ... 10, the spaced panels 32 being. tied by hooks 33. The panels 32 are surmounted by architrave elements 38 which support the first floor beams 25, and after preparing a new base 31, spaced wall panels 13, 32 and posts 17 are erected to carry the roof. Wooden lathes, e.g. as 35, may be let mto the mortar, Fig. 18, for fixing beading 36 to cover panel joints. Apertured panels may be used to provide openings for windows and doors.