Patent GB-111154-A (GB)
Title: Improvements in Apparatus for Recording the Passage of Articles for Checking Purposes.
Inventor: CORBY SYDNEY FREDERICK
IPC: G06M7/04
Filed: 1916-11-14
Abstract: 111,154. Corby, S. r. Nov. 14, 1916. Drum recording-apparatus for particular operations.-In apparatus for checking the number of articles passing down a shoot by making a record, a counter-balanced lever projecting into the shoot operates a recording-point to mark a drum on the passage of each article and rotates the drum, the travel of which is increased between each ten marks made and reversed at each hundred, the marking-point being moved along the drum simultaneously with the reversal of the travel. The type of record made is shown in Fig. 15. On the shaft 2<a> of the lever 2 is mounted an arm 2<b>, Fig. 10, provided with a pin 2<c> engaging a slot 3<a> in a plate 3, the slot being so shaped that movement in the lower part rocks the plate while movement in the upper part is inoperative. Pivoted to the plate are pawls 9, 10 adapted to rotate in opposite directions a toothed wheel 4 mounted on a shaft 4<a>. A pin 4b on the wheel 4 engages a slot 27<a> in a disk 27 having secured thereto a wheel 5 driving a wheel 6 on the shaft 6<a> of a record-drum. Every tenth tooth 28 of the wheel 4 is made wider to form a gap between each ren marks on the drum. Movement of the plate 3 is communicated to the recording-point by a link 18a, Fig. 8, the notched lower end of which rocks, through a shouldered arm 18<c>, a shaft 18<e> carrying a slotted plate 18<f>, through which passes the recording-arm 18. Downward movement of the link 18<a> thus rocks the plate 18<f> and carries the recording-point away from an inking-roller 19, with which it is normally in contact, into the printing position shown in Fig. 8. Simultaneously with the making of the record, a projection 18h on the arm 18<c> forces the link 18<a> out of engagement with the shoulder 18<b>, thus allowing all parts to fall to their original positions. The slot 18g is made long enough to extend the whole length of the record-drum. Reversal of the travel of the drum is effected by pins 7<a>, 7<b> on the wheel 6 striking a projection 12<b> on an arm 12 pivoted on a shaft 12<a> and rocked by the pins to move a knife edge from a notch 14 to a notch 13, the notches being situated on either side of the centre of gravity of a slotted plate 11 supported on pins 26, 26<a>. Rocking of the plate due to this movement causes the curved edge 11<a> of the plate to lift the pawl 9 out of engagement and allows the pawl 10, previously held in the disengaged position by the flat edge of the plate, to come into operation. Simultaneously therewith, the marking-arm 18 is moved a step to the left by one of two pawls 43<b>, 43<c> engaging the teeth of a rack 17 which is mounted to slide on a shaft 30 and carries the arm 18. The pawls are pivoted to a disk 33 mounted on a shaft 33<a>, the disk being rocked by two counter-weighted pawls 43, 43<a> adapted to be engaged by a tooth 42, Fig. 4, on the plate 3, the pawls being so connected to the member 12 as to be moved into engagement position when this part is rocked by the pins 7<a>, 7<b>. Every fifth tooth on the rack is made wider to space apart each five hundred marks in the record. At the end of the recording-movement, the rack 17 and the recording-drum 7 are returned to their starting points by weights which are positioned during the recording-operation. A pinion 39 on the drum shaft 6<a> rocks a pivoted toothed sector 38, Figs. 5 and 6, carrying a weight 44 which lifts a weight 34 carried on an arm 34a secured to the rack, the weight 34 being guided by a pin 34<a> thereon engaging a guiding groove 40, Fig. 13, in a segmental plate 1<a> carried by the casing. A horizontal part 40b of this slot retains the weight in the raised, and the rack in the operative, position as shown in Fig. 14. At the end of the travel of the rack, a bevelled surface thereon depresses a rod 49, Figs. 3 and 5, to remove a pivoted brake block 37 from a flange 32 on the drum, and also, through a rod 47 carried by the block, lifts a second brake block 36 from a collar 31 on the shaft 4a, a pin 36<a> serving to lift the pawl 9. The weight 34 is prevented from falling down the sloping portion of the slot 40 to return the rack to its original position until the rod 49 is lifted from a notch 45 in the end of the rack by a pin 46 on the sector engaging the rod 47 and further depressing the rod 49. A catch is provided which locks the rack 17 when the casing is opened. According to the Provisional Specification, means may be provided for preventing articles of insufficient weight from passing down the shoot and the number passing may be printed from a counter.