Specification of Thomas Mann : artificial legs.

  • Mann, Thomas (Printer)
Date:
1856
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Thomas Mann : artificial legs. Source: Wellcome Collection.

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    ■■ m — ■ - ~~ ■ — —--- - Manns Improvements in the Manufacture of Artificial Legs. Fig. 9, by means of the two prongs N, P; the prong N, which is acted upon as the pressure of the body comes upon the heel, prevents the foot from dropping to the ground with too great rapidity; the other prong P counteracts and the operation of the springs at the heel and instep, Fig. 2, F, F, so as to prevent 5 the foot from remaining too much elevated after it is taken from the ground. Letters Q, Q, are two long prongs, connected with the same spring, which extends to the toe part (Fig. 6), and act as levers to raise the point of the toe when the foot is off the ground so as to prevent tripping, which effect is counteracted when the pressure of the body returns upon the foot. 10 Figure 10 represents the leg and foot complete, as it is designed for a below-knee amputation, to be fastened to the body by the straps R, R, which passing through the loops of a leather bearer, Fig. 11, S, S, when laced upon the limb, aie tied or buckled to a drawm. upon the thigh and supported by braces over the shoulders. 15 In witness whereof, I, the said Thomas Mann, have hereunto set my hand and seal, this Eleventh day of December, in the year of our Lord One thousand eight hundred and ten. THOs MANN. (l.s.) AND BE IT REMEMBERED, that on the Eleventh day of December, in 20 the year of our Lord 1810, the aforesaid John Mann came before our said Lord the King in His Chancery, and acknowledged the Specification afore¬ said, and all and every thing therein contained and specified, in form above written. And also the Specification aforesaid was stampt according to the tenor of the Statute made for that purpose. 25 Inrolled the Twentieth day of December, in the year of our Lord One thousand eight hundred and ten. LONDON: Printed by George Edward Eyre and William Spottiswoode, Printers to the Queen s most Excellent Majesty. 1856. Brogden, Extra.