Patent GB-190909072-A (GB)
Title: Improvements in and relating to Conveyor Mechanism for Dehydrating Apparatus.
Inventor: PORTER MAJOR DANE
IPC: D21J7/00
Filed: 1909-04-16
Granted: 1910-04-07
Abstract: 9072. Porter, M. D. April 16. Drying moulded articles.-Articles moulded of wood pulp &c. are dried in their carriers in an insulated chamber, through the compartments of which they are carried on a pair of endless chains. They are first fed on to another pair of chains, on which they pass through sealing-wheels and are transferred to the chains within the chambers by means of a third pair of chains moved intermittently. The chamber shown is mounted on pillars and provided with hollow walls, forming insulating air spaces, and with a removable hollow back 32. At the other end are a pair of sealing- wheels 7 mounted loosely on a shaft passing through the walls. The chamber is supported on a diagonal framework of piping. Within it, the conveyer chains 9 are continuously moved by sprocket-wheels 12 on a shaft 13 and cury pairs of brackets 11 at intervals to support the mouldcarriers. They are mounted at the other end on idler-wheels 15, the shaft 16 of which bears in blocks sliding in the walls and is held in position by screw-adjusted compression springs. Curved guards 21 for the conveyers are provided and are kept in fixed position relative to the conveyers by securing a cross-bar 23 to the same sliding blocks ; rails 24 below the conveyers support the mouldcarriers. The conveyers 9 are supported on vertical plates 26, Fig. 4, mounted on transverse rods 27, Fig. 2, which also support horizontal partition plates 28, Fig. 2, dividing the chamber into two compartments ; air inlet and outlet conduits 29, 30 are arranged at one end in communication with the two compartments so formed, the air passing from the lower to the upper compartment at the other end between the conveyers and guards 21. Inspection panels are provided. The rear panel 32 of the apparatus is secured to the body by means of a key passed through an horizontal slot in one of the end walls. At the other end, a pair of conveyers 40 pass through the sealing-wheel 7 and are intermittently moved through wheel gearing ; they carry single brackets 44. At the inner ends, the conveyers are carried by sprocket-wheels loosely mounted on a shaft 50, on which are also loosely mounted other wheels carrying, with wheels fixed on the driving-shaft 13 of the conveyers 9, intermediate conveyers moving in unison with the conveyers 9 and transferring the mould-carriers thereto. The vanes of the sealing-wheels carry curved segments 57 forming air-tight joints with the surfaces of framework 58. Above and below the conveyers, apertures in the vanes are closed by curtains or otherwise. Guards 61 guide the mould-carriers through the wheels. Guards 59 and rails 60 are arranged in front of and below the conveyers 40. A drain-pipe 80 leads from the upper surface of the plate 28 into the supporting pipe system or elsewhere. The mould-carriers comprise hollow central cylinders 65, which may be perforated and are secured to, or in one with, the hollow stems of male moulds at the sides ; between these and the female moulds 72 the material to be treated is enclosed.