Patent GB-191211485-A (GB)
Title: Automatic Fur Feeding Machine to be used in connection with the Manufacture of Felt Articles.
Inventor: CALVI GUISEPPE
IPC: D04H17/00
Filed: 1912-05-14
Granted: 1912-11-14
Abstract: 11,485. Calvi, G. May 14. Automatic-feed weighers.-In a machine for manufacturing felt articles, especially felt hats, the correct amount of fur is fed by picking- rollers from a hopper into a scale pan, the supply then being automatically stopped and the fur delivered to an endless apron. The fur is fed from a hopper 9, Figs. 1 and 9, through a grating 10 consisting of parallel bars beneath which are rollers 11 driven from a spindle 21, by chain-wheels 18, 20, and worm gearing. On the rollers 11 are points 13 which project through the bars 10 and pull the fur through, dropping it on a scale pan 16. The points are cleaned as thev revolve by means of oval cases 17 mounted loosely on the rollers 11. The scalepan 16 is detachable from the balance beam 22, and when this descends, the pan rests on slides 23 and the beam is held down by mechanism described below. The movement of the beam trips, by means of a rod 50, a ratchet 52, allowing a weight 53 to descend and raise a lever 54, pivoted at 55, and having a counterweight 56. This permits a lever 43, pivoted at 44, Fig. 6, to be pulled over by a spring 45, carrying with it a sleeve 41, driven by an electric motor or otherwise, and loosely mounted on the spindle 21. A sleeve 24, also Joose on the spindle 21, is thus driven and transmits its motion by toothed gearing 26 to a spindle 27, and thence, by chain gearing, to a crank-wheel 31. This, by means of a crank, moves the slide 23 and pan 16 to the position shown at 16<1>, Fig. 1, whereupon a frame 32, carrying blades 33, is caused to descend by a cam 34 on the spindle 27, and, the pan 16 being withdrawn by continued rotation of the wheel 31, the blades 33 retain the fur and allow it to drop on the feeding-apron 8 of the forming- machine. While the pan 16 is thus moved from over the beam 22, the weighted end of this beam is supported bv a rod 62, which is raised by means of a bell-crank lever 58 being forced out of a notch 60 in the edge of the wheel 31. On the spindle 27 is mounted a cam 48, which, when the pan 16 is returned under the hopper, causes the lever 43 to swing so that the sleeve 41 engages the clutch 42, and thus drives the spindle 21 which operates the picking-rollers 11. The weight 53 is returned by a cam acting through a lever jointed to the weight. At the end of each cycle of operations the machine is stopped by the mechanism shown in Fig. 4. A spindle 63, Figs. 1 and 4, driven by the forming machine, is geared to a second spindle 67, upon which is loosely mounted an arm 68, carrying a roller 69, and caused to revolve by means of a stirrup connecting the collars 70 until the vertical position is reached, whence it drops on to an inclined surface 71. This surface being carried by a rod 73 and mounted in a slide 72 moves to the left, and is retained by a tooth 75 engaging a projection 79 on a rod 76, pivoted at 77 and pulled upwards by a spring 78. This movement of the rod stops the forming machine, which is restarted by releasing the rod 73 under the action of a spring 74 by means of a button 80. When the lever 43 is released by the lever 54, Fig. 9, in order that neither the spindle 21 nor the sleeve 24 shall rotate when the forming-machine is stationary, the lever 43 is stopped in mid-position by a rod 85, Fig. 5, suspended from a lever 81 pivoted at 82. A pin 90, revolving with the spindle' 67, causes the lever 81 to assume the dotted position, in which it is retained by a pin 84 engaging a projection 88 on a suspended rod 87, thus allowing the lever 43 to pass. Subsequently, a pin 91 on the cam 48 displaces the rod 87, permitting the lever 81 to return. Instead of the stationary bars of the grating 10, pairs of cylinders 92, Fig. 13, having below them the picking- rollers 11, may be used.