Patent GB-190826607-A (GB)
Title: An Improved Machine for Packetting Tea or other Substances.
Inventor: LOVELL EDWARD COLSTON
Filed: 1908-12-08
Granted: 1909-11-18
Abstract: 26,607. Lovell, E. C. Dec. 8. Packeting and filling tea &c.-Relates to a machine in which a formed packet having one end open is filled with tea &c , and the open end is then closed and secured. The machine consists of a narrow table 2, Fig. 1, over the surface of which a chain is moved intermittently. The chain consists of a series of links 19, each of which forms an open-ended box into which the empty packets are placed. The tea is discharged from suitable weighing-mechanism into a reciprocating-funnel 22 the lower end of which enters the open end of the packet prior to the discharge. During the filling operation and in two further positions, the packet is jigged by plates which are connected to a lever resting on the toothed periphery of a revolving wheel 48. The packet next passes beneath a pressing-device consisting of a number of vertical rods which descend and pre3s the tea into the packet. The packet advances and is partly closed by means of a head 58, Fig. 14, attached to the lower end of a rod 59. As the picket is brought beneath the head 58, the side facing the head is folded in and the head gives a final pressure to the turned-over portion before being withdrawn. The sides of the bag are supported during the folding operation by plates 68, 69 in order to prevent injury to the sides. The packet is next moved to the device for folding the sides, which consists of folders 79, 79, Fig. 22, pivoted to horizontally-reciprocating slides 73, 74 respectively. Each folder is formed with a camsurface which engages with a roller 91 on the frame when the slide recedes, and causes the folder to tilt into an inclined position. Thus as the folder advances, it descends on to the upstanding side of the packet and closes it with a wiping action. A third slide, arranged at the side of the slide 73, supports the side of the packet which is not to be operated on. The top of the packet is next gummed by means of a gummer 96, Fig. 18, secured to the face of a member 95 which is pivoted to the lower end of a reciprocating rod 92. The member 95 has at its free end a roller 97 which is caused by a spring to bear against a fixed guide 98 having its lower end curved as shown. Thus when the rod 92 is depressed, the gummer 96 moves into an horizontal position and gums the top of the packet. During its descent, the gummer passes over, and receives gum from, a roll 98<1> which is mounted in the gum reservoir and is rotated by a rack attached to the rod 92. The remaining upstanding side of the packet is folded by means of a hinged plate 108, Fig. 1, which is held by a spring in contact with a roller carried at the lower end of a rod 115 attached to a reciprocating presser 117. The surface of the folder 108 in contact with the roller is so shaped that, as the roller reaches the downward limit of its movement, the folder moves from under the presserfoot 118. The packet is ejected from the chain by a plate which rises through an opening in the table. Apparatus such as that described in Specification No. 15,552, A.D. 1906, may be used for introducing a card into the package either before or after filling.