19,721. Hubbard, A. R., and Flay, R. Sept. 13. Cooking-stoves etc.; ovens; shelves. -Relates to means for withdrawing shelves from ovens. The shelf b slides in channelled-iron guides a on rollers carried by the guides or by the shelf. A series of pivoted links f, f<1>, h, h' are pivotally attached to the shelf at d, and to the front of the oven at i. Links k,k<1> are attached to the links h, h<1>, and are connected by a link m to a hand. lever p. A series of links of the lazy-tongs type may be used.