Patent GB-191418241-A (GB)
Title: Machine for Making and Dispensing Sandwiches.
Inventor: MAISCH AUGUST THEODORE
IPC: B26D7/34
Filed: 1914-08-01
Granted: 1915-07-22
Abstract: 18,241. Maisch, A. T. Aug. 1. Sandwiches, making.-Relates to a machine for making and forthwith dispensing sandwiches. The machine illustrated is for making a sandwich consisting of a slice of cheese between two crackers, but other substances may be used, and the machine is capable of superposing two or more bodies generally one of which has been previously severed from a larger mass, and passing the aggregate to a point of delivery. Figs. 1, 2, and 3 show the general arrangement of the machine, Figs. 5 and 6 show respectively a partial section and plan on a larger scale, and Fig. 9 shows a perspective view of mechanism for tripping a by-pass connected with the cheesefollower. The machine is operated by a slide 20 which, when pulled outwards, deposits a slice of cheese from the centre tube 16 on a biscuit advanced from the bottom of the right-hand tube 13, and when pushed back again, advances the biscuit and cheese to a delivery plate 38 and, if desired, drops thereon a second biscuit from the bottom of the left-hand tube 14. During the outward movement of the slide 20, an inclined slot 23 therein engages a pin on a push-plate 19 by which the lower biscuit is pushed along the ledge 18 until it lies beneath the cheese tube 16. At the same time, a wirecutter 25 is pulled forward by a bent forked arm 30 of the slide 20 and removes a slice from the bottom of the cheese column, which slice falls on the biscuit. The slide 20 is then pushed inwards and by means of a pin 48 engages the trigger end 49 of a lever 46, the opposite end of which has a pin-and-slot connexion with a pusher 40 by which the biscuit and cheese are advanced to the delivery plate 38. Another pin 36 on the slide 20 engages the slotted end of a lever 33, the opposite end of which is coupled to a curved pusher 31, which removes a biscuit from the bottom of the left-hand tube 14 and advances it over the delivery plate 38, thus completing the sandwich. The pusher 40 is returned by a spring 50 as soon as its trigger end 49 frees itself from the pin 48 on the slide. The cheese column is frictionally held in its tube, and is fed downwards after a slice has been removed by a piston 51 and rod 52, which are connected to a box 60 sliding on a fixed rod 56. The box 60 carries a pawl 61 engaging a rack-bar 62, which is depressed to effect the feed by a spring 64 whenever the arm 65 is removed from its lower end. The arm 65 is operated through a rock-shaft 66 and link 69 by a lever 67 which carries at its end a spring tongue 71 with an upstanding pin 72 at its outer end. As the slide 20 is pushed home, it engages the pin 72, swings the lever 67 and raises the rack-bar 62, compressing the spring 64. A bent rod 77 attached to the lever 46 is adapted to engage an arm 75 on a spring-controlled rockshaft 73 and to depress the outer end of the tongue 71 so as to release the pin 72 from the slide 20. This takes place when the lever 46 frees itself from the pin 48 on the slide 20 and is swung over by the spring 50. On the release of the pin 72, the spring 64 depresses the rod 62 and effects the feed of the cheese column. In order to ensure complete outward and inward movements of the slide 20, a pawl pivoted to the framing engages a double ratchet rack on the slide, the pawl being moved over from one rack to the other at the ends of the movement by bevel surfaces. A spring is arranged to keep the pawl in engagement with either rack.