GB956791A - An electric toaster of the pop-up type - Google Patents

Abstract

956,791. Electric toasters. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. Oct. 28, 1960 [Oct. 31, 1959; May 18, 1960; May 24, 1960], No. 37212/60. Heading A4D. [Also in Divisions H2 and H5] In a pop-up toaster having a bread carriage 37, Fig. 4, which rises automatically to an intermediate position where stored heat is used to complete toasting, operation is initiated by manual depression of an arm 47 which completely lowers the upwardly spring-biased bread carriage 37 to an initial toasting position where toasting element contacts 53, 55 are closed by an insulated plunger 49 on the carriage, and in which position it is retained by a latch lever 41 engaging under a first lug 56 of a latching member 56A held by a leaf spring 73, Fig. 5, to a support plate 58 pivoted at 61 and retained in the position shown against the action of a spring 57, Fig. 4, by a resistance wire 74 doubled round a ceramic bearer 75. Toasting can be terminated at will by turning the arm 47 upwardly about a pivot 44 to release a lug 48 supporting the lever 41 which then slips free of the lug 56, but failing this a thermostat 21, Fig. 2, in due course closes contacts 24, 25 energizing the wire 74 consequent expansion of which allows the plate 58 to move the lug 56 free of the lever 41 and bring a second lug 84 on the member 56A into the path of the lever which is retained thereby while toaster stored heat is used and until the wire 74 cools sufficiently to release the lug 84 from the lever 41 and allow the carriage 37 to rise completely. The basic tension of the wire 74 is adjustable, its ends being attached to a member rocking under screw control. A modified latching member is described (Fig. 17, not shown) having a first lug pin pivoted on the support plate for movement in the plane thereof, and which in a further modification (Fig. 19, not shown) is directly operable by lever means to terminate toasting at will, pivoting of the arm 47 being dispensed with. The thermostat 21, Fig. 2, has a shield 22 and is a doubled bimetal strip one leg of which is mounted on a fixed support 19 and the other of which carries the contact 24, the coacting and resilient contact 25 being adjustable by acting on it with a rod 26 screwing through an anti-backlash nut 28. The toaster has a detachable top cover (Fig. 3, not shown) with pivoting carrying handles and which has wire elements pivotable to form it into a bread stand when inverted. There is a movable crumb plate 72, Figs. 2 and 5. The construction of the toaster casing 4, 5, Fig. 2, is described in detail, as is the mounting (see Division H5) of the heating elements 15 . . . 17.