Improvements in crutches / [Thomas Chatfield].

  • Chatfield, Thomas.
Date:
1896
Catalogue details

Licence: Public Domain Mark

Credit: Improvements in crutches / [Thomas Chatfield]. Source: Wellcome Collection.

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    N° 2:2,680 A.l). 1895 Date of Application, 27th Nov., 1895 Complete Specification Left, 27th Aug., 18'6—Accepted, 10th Oct., 1896 PROVISIONAL SPECIFICATION. Improvements in Crutches. We, Thomas Chatfield, and Frederick Durose, both of 34 Warser Gate, in the Town and County of the Town of Nottingham, Watchmakers, do hereby declare the nature of this invention to be is follows : — This invention relates to improvements in crutches, and comprises a pneumatic 5 or air-cushion for the crutch head, and also means for preventing slipping. According to our invention we arrange, in a suitably shaped groove or recess, in the crutch head, a cylindrical hag or cushion of india-rubber, or other appropriate material, which, by means of a suitably arranged valve, may be inflated with air to any desired degree of hardness, in any well known manner. We are thus enabled 10 to dispense with the padding or spring devices now used for obtaining elasticity or softness, and which are liable to become hot and cause arm sores, and the like. The cylindrical bag or pneumatic cushion is preferably made deeper in the middle than at the ends, and slightly tapering and rounded at the ends, so that when the crutch head is completed by a covering of leather, or the like, it shall 15 present nearly the same appearance as an ordinary crutch head. At the bottom of the crutch, we arrange a scored or roughened ferrule which may be advantageously formed of a block of vulcanized india rubber, or other hard resilient material such as leather, in which ridges or projections are formed in any suitable manner so as to prevent the slipping of the crutch. 20 The india rubber or leather ferrule may be so arranged that an air space or cushion is formed between the end of the crutch stick and the bottom of the ferrule, by which arrangement the wear of the ferrule is considerably lessened. A further advantage of our crutch is that there is less jar or vibration, particularly in ascending or descending steps, or stairs, than with crutches as 25 hitherto constructed. Dated this 27th day of November 1895. ERNEST de PASS, Chartered Patent Agent, 78, Fleet Street, London, and 5A, Market Street, Nottingham, 30 Agent for the Applicants. COMPLETE SPECIFICATION. i Improvements in Crutches. We, Thomas Chatfield and Frederick Durose, both of 34 Warser Gate, in the Town and County of the Town of Nottingham, Watchmakers, do hereby 35 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, reference being had to the accompanying drawings and to the letters and figures marked thereon, that is to say : — This invention relates to improvements in crutches, anl comprises a pneumatic 40 or air cushion for the crutch head, and also means for preventing slipping. \ Price 8d.]