Specification of Alexander Melville Clark : fanning apparatus.

  • Clark, Alexander Melville.
Date:
1872
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Alexander Melville Clark : fanning apparatus. Source: Wellcome Collection.

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    2 A.D. 1871.—N° 2679. Provisional Specification. Clark's Improved Self-acting Fanning Apparatus. like manner, and tlie fan may be combined with many articles, such as table or toilette ornaments, which also serve to contain the mechanism operating the fan. Figure 1 of the annexed Drawing represents one example of the mode of applying the improved portable self-acting fan to an ornamental 5 jar, which serves to contain the mechanism shown separately in Figures 2 and 3, said jar being surmounted by a basket of flowers or other ornament used to conceal the attachment of the fan with the mechanism. In Figure 2, A represents a barrel containing a spring for giving 10 motion to the mechanism and carrying a toothed wheel, gearing with pinion B and acting by means of wheels D, E, F, Gr, on an endless screw Q; H, crank arm fixed on the spindle of pinion F; H1, forked lever connected at one end to the crank and at the other to the fan holder Hn, which is counterbalanced and oscillates on pivot O. I is a 15 fly wheel on spindle Q of endless screw, and J a regulator or flyer on same spindle. The winding gear consists of a ratchet M, Figure 3, fixed on barrel spindle; P, P1, spring and pawl; N, ratchet fixed on squared spindle S and gearing with ratchet M; T, bridge piece in which wheel N is mounted; E, studs for connecting plates Z, Z, containing the 20 mechanism, Figures 2 and 3. LONDON: Printed by George Edward Eyre and William Spottiswoode,