Improvements in ambulance apparatus / [John Denis MacDonald].

  • Macdonald, John Denis, 1826-1908.
Date:
1889
Catalogue details

Licence: Public Domain Mark

Credit: Improvements in ambulance apparatus / [John Denis MacDonald]. Source: Wellcome Collection.

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    Date of Application, 2nd Feb., 1888 Complete Specification Left, 23rd Nov., 1888 Complete Specification Accepted, 15th Jan., 1889 A.D. 1888, 2nd February. N° 1548. PROVISIONAL SPECIFICATION. Improvements in Ambulance Apparatus. I John Denis Macdonald, M.D., F.R.S., Inspector General R.N. of 11 St. James’s Road, Surbiton, Surrey, do hereby declare the nature of this invention to be as follows :— It consists in A New Stretcher Fittings, and B New Combination Stretcher 5 Slings. A. The new Stretcher Fittings include 1. Poles of a new and improved pattern. 2. New Self adjusting hinged Cross Pieces, and 3. New automatic Feet. (Sheet A). 10 1. The Poles may he composed of sheet iron, wood or bamboo. They are dis¬ tinguished from those hitherto in use by being provided with handles longer in the fore part of the Stretcher than those at the back in the proportion of 11 to 5 or thereabout. They are also provided with Ring Straps to which the Slings may be readily attached for lifting, and from which they may be as readily released. 15 2. The Cross Pieces consist of two arms severally hinge-bolted to the Poles of the Stretcher, or to an intervening pair of wood Blocks furnished with a connecting plate, and forming a moveable Trestle (Fig. 3). The opposite ends of these arms are curved off into two discs. The innermost of these respectively meeting its fellow, they are bolted together to form a hinge, upon which the arms close up as the 20 poles of the Stretcher come together, or otherwise open out as the poles of the Stretcher are separated (Fig. 8). When the poles of the Stretcher are separated to their limits the outer discs also come together, and are automatically locked by a spring pin-catch. The arms are then practically a rigid extended bar (See Figs. 2 (a) 6 & 7). 25 The advantages secured by this arrangement are that while the Old or Regulation cross pieces are complex, difficult to manage, and require to he fixed by special arrangement, the new cross pieces are simple, and, being automatic, easy to manage. [Price 11<L] A