Specification of William Clark : trusses and pessaries.

  • William Clark
Date:
1862
Catalogue details

Licence: Public Domain Mark

Credit: Specification of William Clark : trusses and pessaries. Source: Wellcome Collection.

    5/22 page 3
    Specification. A.D. 1862.—N 1858. Claries Impts, in Hernial and Orthopedic Apparatus and Pessaries, of the movement, and in Fig. 14 showing an under side view of^ the same, Figs. 15, 16, 17, 18 and 19, showing the details thereof. This-consists in engaging in a connecting rod o, the finger h, which operates the rod s, said rod 0 forming the collar of an eccentric p, which may be rotated either by means a key q, seen in plan and elevation in Figs. 15 and 16, or by a ring, or in other suitable manner. In order to allow of the movement of finger the plate is formed with a slot x, and to secure the excentric p, which imparts the movement to the rod o, a plate y is fixed on plate t, which hides the whole movement as shown at Figs. 14 and 19. A fourth movement, by 10 which the reversal of the pad may be effected progressively without any outward projection, is shown in plan Fig. 1, Sheet 2, of the Drawing annexed at Fig. 2, in section and in plan at Fig. 3. A is the truss or plate, of which the branch B receives its inclination through an excentric C, acting on the projecting part of D, in connection 15 with the rod B. The part D consists of a cam, which is constantly pressed against the excentric C by the spring F, so that said excentric in its rotation may force back the cam D, thereby causing the rod B provided with the supporting truss spring to rotate ; this spring may be altogether dispensed with, and instead of a single cam a forked or complex cam may 20 be employed. A fifth mechanical movement, by which the progressive reversal of the pad can be obtained without any outward projection, is shown in Figs. 4, 5, and 6, wherein are seen the details of truss G in plan, section, and under side views. In this arrangement the inclined movement is imparted to the rod II by rotary motion imparted to the wormed rod J, 25 by a cranked part K; on turning this part K by means of the knobs I, I, the part L is caused to traverse the wormed rod J ; the part L is furnished with a projecting part M in connection with rod H, thus by raising and depressing said part L the rod H is inclined as desired. A sixth mechanical movement, by means of which the progressive reversal of the pad is obtained 30 without any outward projection, is shown in Sheet 2, at Figs. 7, 8, and 9. Fig. 8 shows separately a detail of the part P, which effects the inclination of the truss rod Q; this movement is imparted by means of a key as shown, which key turns a part P furnished with a projection R on the axis of said part P in the form of a screw thread, or of other like form. The rod Q has a two-fold 35 projecting part S, which surrounds the projection R of the part P, from which arrangement it results that the part P, in its rotation, raises the part S, in consequence of the curved form of the part R, and hence elfects the inclination of the spring carrying rod Q. In the two last arrangements I have described the use of different applh
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