Patent GB-214773-A (GB)
Title: Improvements in and relating to machines for erecting walls of bricks and the like
IPC: E04G21/22
Filed: 1923-02-19
Abstract: 214,773. Kaye, S. Feb. 19, 1923. Brick-laying machines.--A machine for building four enclosing walls simultaneously comprises two upright frames A, A<1>, Fig. 1, travelling on rails 1 and a horizontal framework B adjustable vertically by hand gearing and on which traverses brick-laying mechanism C. The rails 1 are laid outside two parallel walls to be built, and the machine is moved in succession forwards as a whole; then the laying device C is moved across, the whole is moved backwards, and again the device C is moved across, so that bricks are laid alternately on the main and end walls. The carriage 6 rides on a rack 5 and carries a brick receptacle 9 below which is the laying mechanism 11 rotatable on an axis 12. The framework B is suspended by ropes 15 which pass from a winding drum 16 driven by a square shaft 18 which is rotated by manually-operated gearing 21. The entire machine is driven on the rails 1 by the vertical shafts 24 and horizontal shaft 33 actuated by a motor 35, Figs. 10 and 11, through wheels 36<e>, 48, and clutch 51. For traversing the laying device on the framework B, the motor 35 drives gearing 36<a>, 36<c>, 36<e>, and reversing bevel gearing 38 controlling a shaft 39, which by gearing 39<b> drives a spur-wheel 8 in mesh with the rack 5. The bricks are fed by hand from automatically rising and falling cages 99<a> to the receptacle 9. The bottom bricks lie diagonally on projecting plates 52, Fig. 6, and between notched plates 53 which are pivoted to levers 54, 54<a> operated by an arm 57, link 59, and bellcrank lever 58, Fig. 4, coacting with a stop 70 on a depending rod 63. At every brick length traversed, the cam 47, driven by pinion 45 and bevel gearing 45b, permits the rods 63 to descend and push the bricks from the receptacle 9 so that they fall and are received by spring arms 14, Figs. 3 and 4, at the top of a rotating drum or frame 11. The arms open out on contact with fixed rollers 71 and, as the drum rotates, the arms 14 are again opened in their lowest position by bars 72 and the lowest bricks are deposited by the descent of the plunger 68. Mortar in a tank 34 is discharged by a grooved roller 74 whence it is removed by scrapers 77 to endless bands 78 and is deposited by a scraper 81 on the bricks already laid. The newly laid bricks are pushed up against those already laid by a bar 89 operated by a lever 87 and rocking shaft 83 carrying a roller arm 84 coacting with the cam 47. The laying device is rotated through a right-angle at the end of each travel and traverse by the pinion 44<b>, Fig. 10, and loose wheel 44<c> operated through the clutch 41, bevel gearing 42<a>, and vertical shaft 44<a>. The casting 44<d> is locked by lugs 44h engaging notches and released when desired by a hand-link 103, link 102, bell crank 101, and rod 100. Guiding arms 91, Fig. 3, ensure alignment of the laid bricks and are raised clear by a rod 93 at each partial rotation of the laying device. In one modification, the framework B travels on stationary main frames A which extend along one pair of walls; and in another form, the laying device travels along a four-sided horizontal framework supported by vertical structures. Specifications 119,331 and 134,296 are referred to.