Specification of Thomas Adams : trusses.

  • Adams, Thomas
Date:
1857
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Thomas Adams : trusses. Source: Wellcome Collection.

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    The- enroU-ed drawing is aiored . Drawn on Stone by Mai by & Sane (1 sheet) The- fully power of this Truss would hr fin pounds if ihr adduwruil Spring was drawn, guide back to k but as it, is drawn forward, till that part of die, Graduated- Strap marked 1. lbs. is opposite Hut mark. in.. they pressure- of the Truss is diminished to two pounds and of drawn, ttather till . 1.U<. on- fluty strap be opposite the /nark in.. the- pad- woldd only press with a- force, of one, pound- ADAMS' Specification ■ / I If a. stud- be prefered- to a- strap for mating the additional spring then one like-, n n id answer the purpose, by being glared in the back the addition-al spring Additional. Spring It- will be observed- that: the nates or letters of referenced are the same in-fig. Las in-Fig. Z. (intmu/ilirn of Graduated- Stray at re.. London •dbyGi-.oitcii Ldwahi) Lyhk and Wii.ijam Svottiswoode , as to the Queens most Excellent Majesty. 1857.
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