Patent GB-333252-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D7/06
Filed: 1929-05-08
Abstract: 333,252. Berkel & Parnall's Slicing Machine Manufacturing Co., Ltd., and Thomas, H. May 8, 1929. Cutting slices in succession.-In a slicing- machine, the feed carriage is movable towards and away from the knife along a guide or guides which constrain the carriage against tilting, and the carriage has means whereby a substanceholding device can be detachably secured thereto and temporatily locked in position so as to extend laberally therefrom. When so secured and locked, the holding-device and the substance thereon is rigidly supported by and moved with the feed carriage without the necessity for any other support. As shown in Fig. 1, the feed member 20 is of a saddle shape and is movable on guides 21, 22, the guide 21 being a facing on the undertable A whilst the guide 22 is a channel bar which receives a flange 24 of the saddle. Tilting of the saddle is prevented by a roller 26, journaled on a pin 27, and a guide slot 28 therefor, formed in an extension 29 of the guide-bar 22. The flange 23 of the saddle 20 rests on the guide 21 and has an upstanding pin 30 which receives a socket in a bracket 32 on the meat table B. The saddle 20 has inclined ribs 23 which engage correspondingly inclined portions of the bracket 32. The bracket 32 is held firmly by the wedge action of the opposed inclined surfaces and is locked by a pivoted member 35 having a cam face 36 which bears on the top of the socket. The feed nut is controlled by a stem 38 which passes through a column 39 on the saddle 20. In a modification, the meat table B has a horizontal pin which projects into a socket in the saddle 20, the pin having an arcuate recess in one side whereby it is locked in position by a rotary cam. The socket contains a spring-pressed member which ejects the pin when the cam is released. In a further modification, the undercarriage A is replaced by bearing blocks which are slidable on guide-bars and are connected, in a bridge-like manner, by the guides for the saddle 20. In the construction shown in Fig. 10, the feed member is a housing 80 slidable on a round guide 82 fixed to the undercarriage A. To prevent tilt. ing, the guide 82 has a flat 82a which engages a flat facing 80<a> within the housing, and an auxiliary guide 84 engages a. channelled bracket 85 on the housing 80. The feed nut E is carried by a yoke 86 beneath the feed screw D, the yoke being operated by a rod 87 slidable in a column on the housing and actuated by a lever 89. The meat is held on a display-tray B having a horizontally projecting pin,92 which fits into a socket in the housing and is locked therein by the lever 96 the toe of which engages with a transverse slot in the pin. A spring normally keeps the lever 96 in the locking position. An additional pin 100 on the tray B engages a socket in the housing 80 and prevents tilting of the tray. In the modification shown in Fig. 13, the lever 110 serves to control the feed nut E and to lock the tray B on to the feed member. The feed member consists of a housing 114 having a slot in the top for the passage of the lever 110 which is journaled on the guide-bar 113. The end walls of the housing are formed with slotted bearings 115 which normally rest on the bar 113, and an additional guide 116 is attached to the undercarriage A and engages a channel in the housing. The tray B is hung on the dovetail part 117 of the housing and curved arms 119 on the tray are engaged by a cross-piece 121 on the lever 110 as it is swung towards the tray which is thereby locked in position. On swinging the lever 110 clockwise the arms 119 are first released to permit removal of the tray B, and further movement of the lever brings the cam 126 into contact with the roof of the housing 114 which is thus lifted. The feed nut, being secured to the housing, is lifted therewith away from the feed screw D. The meat may be held as described in Specification 328,966 and the feed screw may be used as a guide. Specification 273,372 also is referred to.