Patent GB-190602998-A (GB)
Title: Improvements in Apparatus for Dyeing Hides and Skins
Inventor: MARTINET ROMAIN
Filed: 1906-02-07
Granted: 1906-06-21
Abstract: 2 9 9 8. Martinet, R., and Dulac, A. Feb. 7. Dyeing.-An apparatus for dyeing hides and skins &c. consists of a circular table divided into a number of radial compartments, preferably six, and intermittently rotated through a suitable part of a revolution, and of a number of sprayers the cocks of which are automatically opened when the table is at rest and closed when it rotates, together with suitable mechanism for operating the machine. The sprayers receive curvilinear motion while the cocks are open, in order to distribute the mordant &c. over the hides &c. During each interval of rest, an attendant places an undyed hide in one of the compartments, and during the succeeding intervals of rest this hide is successively (1) sprayed with mordant, (2) sprayed with dye, (3) allowed to soak in the dye or treated with another dye or the same .dye again, (4) treated with a solution for " striking " or fixing the dye, and (5) rinsed and worked by an attendant and then removed from the table. The table A is divided into six compartments by partitions B. The upper surface is convex and covered with sheet lead A' which has a circular flange at its circumference. The used liquids, which can be collected in separate receptacles and used again, are discharged from each compartment by a duct C. The table has a central aperture and is supported by radial arms D of U-section fixed to a flanged hub rotatable on a pillar F and integral with a sleeve E', which is rotated by a pinion G<1>, borne by a shaft H, and meshing with the attached bevelwheel G. The table is also supported, preferably, by means of rollers Y travelling in a race Z supported by pedestals Z<1>. A braced and stayed framework p supports each sprayer k, k<1>, which is attached by an india-rubber union to the lower end of a pipe i for supplying the mordant or other liquid. To each sprayer is attached a rod on which is mounted a roller l<1> kept in contact with an inside cam l by a spring m. The cam l is shaped so that, when a pulley 0, to which the rod is attached, is driven from one of the central pulleys O<3>, the sprayer is moved in a path resembling the outline of a hide to be treated. Cocks h<1> on the pipes i are opened and closed by a cam b attached to a sleeve a fixed to the flanged hub. Just above it there is mounted on the pillar F a plate or spider e with arms, preferably ribbed, provided with central slots e' in which slide vertical rods d. Each rod d also slides in a second slotted plate f and carries a roller d' and a bail g against which a spring e bears and so keeps the roller d' in contact with the cam. Thus the lever h of each cock h<1> is suitably actuated by a curved rod g<1> attached thereto and to the bail g. Each pipe i has a second cockj operable by hand but normally open. The liquids can, if desired, be supplied through conduits arranged above the apparatus or otherwise, but the supply pipes i<1> are preferably contained by the pillar F, made hollow for the purpose, as shown. The supply is made by means of pumps provided with valves which allow the unused liquids to flow back to the respective receptacles. The intermittent rotation of the table and the action of the sprayers may be effected by the following mechanism :-In the position shown, Fig. 2, a belt K is driving a loose pulley J', integral with a stepped pulley J<3>, and through the latter a second step-pulley L fixed to a shaft M. The shaft M carries a worm N which drives a wheel N' and a pulley O which operates the central pulleys O<3> by means of a cord O<1> passing over guide-pulleys 0'. The rotation of the worm-wheel N<1> causes a projection P to act on levers Q, S so shifting a slide T, the motion of which on a fixed plate T<1> is guided by means of studs T<2>. So, by means of attached arms U the belt K is moved to a second loose pulley J<1> and thence to a pulley J attached to its shaft P. A wheel I attached to the first shaft H is driven by a second worm I' attached to the intermediate shaft I<2>, so that the table A is rotated, together with the cam b, which closes the cocks h<1>. The stoppage of the first pulley O causes the movement of the sprayers to cease. When the table A has made one-sixth of a revolution, one of six projections X underneath it operates a lever V and through it the slide T and so shifts the belt K back to the pulley J<2>, the rotation of the intermediate shaft I<2> being stopped by means of a brake q. The cam b then opens the cocks h<1>, and the sprayers are again actuated until the table again starts to rotate. The second loose pulley J<1> enables the apparatus to be placed out of action without stoppage of the driving-belt K, and a handle r allows of operating the slide T by hand, if necessary.