Improvements in collapsable stretchers / [Kaspar Freuler].

  • Freuler, Kaspar.
Date:
1902
Catalogue details

Licence: Public Domain Mark

Credit: Improvements in collapsable stretchers / [Kaspar Freuler]. Source: Wellcome Collection.

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    ST J 5,559 A.l). 1902 Date of Application, 72th July, 1902—Accepted, 18th Dec1902 h COMPLETE SPECIFICATION. “Improvements in Collapsable Stretchers.” I, Kaspar Ereuler, of 120, Birmensdorferstrasse, Zurich, III., Switzerland, Physician, do hereby declare the nature of this invention and in what manner the same is to be performed, to be particularly described and ascertained in and by the following statement: — This invention relates to improvements in that type of collapsable stretchers in which the frame is formed in lazy-tongs fashion. The object is to increase the carrying power and at the same time reduce the weight of such stretchers and to cause1 the props of the head rest in extend¬ ing or collapsing the stretcher, to rise or fall automatically and so as to take up as little space as possible when collapsed. And in order that my invention may be more fully understood I have caused to be appended hereunto one sheet of drawings marked with letters of refer¬ ence indicating like parts in the various figures, Eig. 1 being a side view of a stretcher extended, Eig. 2 of the same about half collapsed, and Eig. 3 a side view of the cranked end of the handle rails. In carrying out my invention and referring to the figures generally, each frame side consists of two or more lazy-tongs, in the present instance two a & b hinged together displaced upon each other, the tongs a being distin¬ guished from h in Fig. 1 by being shaded. The said lazy-tongs are hinged 20 together where they cross each other, their ends c being jointed at e to the corner pieces d formed of angle Iron and the ends f & i by means of headed pins g, gl guided in slots h formed in the said corner pieces. In sliding the tongs end pins g, gl upwards the former abut against the end of the slot h in which position they are retained by the hooks l whilst the stretcher remains 25 extended. To the corner pieces d are pivotted at m the handles n and to the latter at p the rails o, the lower ends of the rails o on the left hand side being cranked. The lower extremity of each of the said rails is formed with an eye o1 (see more particularly Figs. 2 & 3) adapted to engage the pin g1 on the right 30 hand and the pin g2, on the letft hand side respectively and thereby link the tongs ends i to the handles p, see Eig. 1. At the head of the stretcher, rails q are connected with the tongs ends i guided in straps r, which rails serve to hold the1 head portion of the stretcher cloth and are adapted to rise when extending and to fall when collapsing 35 the stretcher. These rails as wTell as the upper tongs ends carry headed pins 5 onto which the stretcher cloth is hooked. Each stretcher side is supported in the middle by a leg t hinged to the lazy- tongs pivot at the> top and adapted to slide in a collar u on the lazy-tongs 40 pivot at the bottom. In collapsing the stretcher the hooks l and the rails o are removed from [Price 8d.~\