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vention embodying the dumping-blocks and1 channel-guides in the manner shown in Fig. 4, where it will be seen that the flat faces of dumping-blockJare bearing on sides of chan- 5 nel I of guide F, holding platform D in a rigidly-horizontal position. On encounter- ing eitherof the diagonally-connecting chan- nels or switches M M the blocks are released, allowing platform D to tip to the desired angle. 10 I am aware that prior to my invention self- dumping cages working on upright guides and having tipple-platform for car and dogs for holding car on platform have been made. I therefore do not claim this invention, 15 broadly; but What I do claim, and desire to secure by Letters Patent, is- 1. In a self-dumping cage, the combination of tipple-platform, shaft attached crosswise 20 at middle of said platform and diamond-j
shaped blocks secured at each end of said shaft substantially as described. 2. In a self-dumping cage, the combination of tipple-platform, a shaft attached crosswise at the middle of said platform, diamond- 25 shaped blocks secured at each end of said shaft, upright guides with vertical channels for said blocks, and diagonally-connecting channels or switches communicating with said vertical channels, lever for setting said 30 blocks to pass through the desired diagonal channel or switch, all substantially as de- scribed. In testimony whereof I have signed my name to this specification in the presence of 35 two subscribing witnesses. MALVERN W. BURDIC. Witnesses: J. F. STRAIN, GEO. D. STRAIN.
Burdic, Malvern W.Self-Dumping Cage for Hoisting Coal, & c., from Mines.,
patent,
June 25, 1901;
[Washington D.C.].
(https://texashistory.unt.edu/ark:/67531/metapth515027/m1/4/:
accessed July 18, 2024),
University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.;
crediting UNT Libraries Government Documents Department.