Patent GB-360692-A (GB)
Title: Improvements in or relating to slicing machines
IPC: B26D1/143
Filed: 1930-11-25
Abstract: 360,692. Slicing machines. FIT Z - PATRICK, H. D., 94, Hope Street, Glasgow. -(Naamlooze Vennootschap Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen; 33, Boezemsingel, Rotterdam, Holland.) Nov. 25, 1930, No. 35424. [Class 28 (ii).] Slicing machine feed-mechanism comprises two intermittently movable locking devices to which the carrier of the substance holder, or if the knife is movable, the carrier of the knife, imparts a relative to-and-fro movement, one of the said devices being connected with the substance holder and adapted to actuate the other of the said devices, and said other device being associated with a member for imparting the requisite feed movements to the first device. As shown, the invention is applied to a machine with a reciprocating carrier or carriage 14 supporting the substance holder 15, the carriage being actuated by a handle 16 carried by lugs 22 on the carriage. The lugs 22 also support a rod 21 on which the first locking device 20 is slidable. The other locking device 40 is slidable on a rod 41 carried by lugs 42 on the base 10. The device 20 consists of a sleeve in which locking rings 23, 24 are pivoted at 25, 26, the rings being spaced by a compression spring 27 and having extending portions 23a, 24a with end rollers 28, 29 engaged by a channel-shaped track 52 which is carried by the second locking device. A lever 30 pivoted at 31 to the sleeve 20 has laterally extending ends which engage the arms 23a, 24a. The second locking device includes two oppositely disposed locking rings 43, 44, which are acted upon by a compression spring 45 and a tension spring 46 which normally move the rings into the " biting " positions. The rings are released for hand adjustment of the sleeve 40 by a lever 47, the displacement of the sleeve being effected by a handle 53. The ring 43 has a cam face 43a with which the roller 28 contacts during the return movement of the carriage. This first releases the ring 43 and then moves the whole device 40 along the bar towards the knife 12. As soon as the roller 28 moves beyond the cam face 43a, the ring 44 prevents retrograde motion of the device 40, and the roller 29 contacts with a cam-faced abutment 50, which is adjustable to vary the slice thickness by a lever 51, so that the ring 24 of the first locking device is released. Continued motion of the roller 29 along the cam 50 displaces the device 20, and consequently the substance holder to which it is attached, through one slice thickness towards the knife. This movement is freely permitted by the ring 23. The carriage 14 is then pushed forward to effect the slicing. For hand adjustments of the substance holder, the handle 53 is grasped together with the lever 47, thereby freeing the device 40. When the device 40 is pulled back from the knife, the channel 52 swings the ring 23 and releases it. The ring 23 bears on the end of the lever 30 and swings it, the other end swinging the ring 24 and releases that ring. The whole slice feed mechanism is then free and may be pulled back from the knife. When the mechanism is pushed towards the knife, the channel unlocks the ring 24 and frees the device 20.