GB400429A - A machine for producing cement tiles - Google Patents

Abstract

400,429. Moulding tiles. FLAMAND, S., 5, Naestvedvej, Ringsted, Denmark. Nov. 15, 1932, No. 32288. [Class 87 (ii).] A machine for making cement tiles comprises a supply conveyer 47 travelling at a greater speed than, and serving to supply bedplates 13 (upon which the tiles are formed) to a main conveyer 39 by means of which the bedplates are carried forward in a continuous row, in which succeeding bedplates abut against each other, beneath the lower open end of a mortar box 14. The bedplates may be moved along rails 12 so that the bedplates pass below a punching device 16 and a colour applying device 17 to a delivery conveyer 45, the speed of which is greater than the speed of the main conveyer. The rails 12 are formed with a recess 50 into which the rear end of each bedplate slides down when the front end is engaged by the delivery conveyer, thus separating the edge of the tile on a bedplate from the edge of the tile lying on the next bedplate. In this way the tiles are produced as a continuously moved and continuous progressive series which is not divided until the bedplates have passed all the steps of production within the machine. The layer of mortar supplied to the bedplates by the mortar box 14 is compressed by a drum 15 located at the rear edge of the box. As shown in Fig. 3 the profile of the drum 15 is in conformity with the profile of the bedplate and is provided at its ends with flanges 55 that serve to limit at the sides the amount of mortar passing beneath the drum. A substantially vertical partition 52 adjustable preferably in a vertical direction by handwheels 53 may be provided in the mortar box to control the level of the mortar. Before the bedplates reach the mortar box they may be sprayed with oil from a nozzle 20 in order to prevent adherence of the mortar. After passing the drum 15 the mortar may be further compressed and smoothed by a sleeking device, not shown. The punching device 16 comprises a rod 56 suspended from a lever 57 and normally held raised against an abutment 61 by a spring 58. An arm 59 attached to the lever 57 co-operates with studs 60 on a cam disc 18. Upon one of the studs 60 passing beneath the notched end of the arm 59 the lever 57 swings in a clockwise direction, whereby the lower end of the rod 56 is caused to penetrate the tile which at the moment is immediately below the punching device and to move along with the tile as long as the end of the rod is in engagement therewith ; when the engagement ceases the rod by its weight is returned to its initial position. The colourapplying device 16 has a drum 19 for applying colour in powder form. An electromotor 24 through gearing serves to drive the conveyers, the drums 15, 19 and the disc 18.