DE18019C - Method and apparatus for dyeing leather - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 8: Bleaching, dyeing, fabric printing and finishing.

JOSEF KRISTEN in BRUNN. Method and apparatus for dyeing leather.

Fatentirt in the German Empire from October 4th, 1881.

So far, glove leather has been dyed by hand using brushes, and this process has been used in addition to its slow pace, the disadvantage that the leather is always on the flesh side gets large, unattractive margins and, despite all care, the color is not quite even he follows.

To remedy these inconveniences is the purpose of the present invention, through which the Uniform coloring is effected by means of centrifugal force, in that the fur to be colored is in attached to the center of a horizontally rotating disc, the paint to the center of the skin poured on and distributed evenly over the surface of the skin by rapid rotation of the said disc. Here can the rotation of the disk is brought about by any transmission, machine or human power applying the paint to the center of the fur by means of a pump or by means of a pump take place a higher standing reservoir and that on the edge of the disc as a result of Centrifugal force draining paint in a reservoir collected and lifted again and piled on the fur, so used for so long until the fur appears sufficiently saturated with color.

The essence of my invention lies in the process of dyeing skins using centrifugal force to evenly distribute the color. In order to make this method easy and practical to carry out or use, I prefer to use the machine shown in the accompanying drawing, of which Fig. 1 is a front view, partly in section, 3 shows a section along xx in FIG. 2, and FIGS. 4, 5, 6 and 7 show details.

A frame A made of wood or iron, consisting of four columns or stands α α α α , which are connected above and below by crossbars α ¹ β ¹ β ¹ , between which the intermediate ^{columns «2} » ² and α ³ are from which two opposite, namely " ² " ² , are again connected at the top and bottom by crossbars " ⁴ " ⁴ , has a funnel B made of sheet metal or other non-oxidizing material at the top, which is fastened to the four main pillars α by screws or bolts bb . Above this funnel, which is shown in perspective view in Fig. 4, there is a shell C, which is circular in outline except for a section c , also made of sheet metal or other non-oxidizing material and by means of the same four screws b are attached to the four main pillars α . The coat has an upstanding edge c ^I of 15 to 20 cm height, in the middle of a square, the upper width of the hopper B corresponding opening and, as shown in Fig. 5 is seen a section c defined by the in Nuthen or rails c ² moving slide c ^{3 can} be closed in such a way that the jacket appears to be surrounded by the edge c ^{1 all around.} Inside the shell C is the circular disk D, which is carried by the spindle d , the upper end of which is best in the one shown in FIGS. 3 and 7

Claims (2)

manner shown is connected to said disc. Like the jacket C, the wooden disc is also provided with a cutout d ^1. With the front upper cross bar ^{τ α} is by means of hinges a board d "is rotatably connected, which with a hand grip d be provided ^for and either lowered into the horizontal position or can be placed in the verticale position so, that it is in the cut-c of the shell C and the section d ^{1 of} the disc D come to a standstill, as indicated in dotted lines in Fig. 3. The spindle d passes through the funnel B , is enclosed by a sleeve b ^l attached to the tip of the funnel and rests in the . the two bevel gears EF, of which d is an on the spindle, the other / sitting in the two cross-bars a ^l a ^4-mounted bearings d ^z d * on the drive shaft, the disc can be offset D in rotation. the drive shaft / rests finds its fulcrum in an attached to the intermediate column, ^"2 stock / ¹ and in a hanger / ^{2, l} in the upper intermediate cross bar a; the outward end of the drive shaft / bearing a loose and a fixed Riems washer GG ¹ . H is the belt fork, by means of which the drive belt is pushed from the fixed to the loose pulley (or vice versa). In the horizontal position, the board d ² allows the rotation of the wooden disc D, while it restrains the same in the upright position. To apply the paint to the skin lying on the disk D , if the paint cannot flow onto the skin from a higher reservoir, the pump arrangement shown in the drawing will be used to advantage. The pump is operated by a small auxiliary shaft, also mounted in frame A , which is set in motion by means of the gearbox JK , by the crank i , to which the piston rod k is attached. When the piston rises, the paint liquid from the paint container L passes through the pipe m into the pump via the opening valve n; when the piston descends, the paint liquid enters the pipe M through the seat of the valve, from where it passes over the center of the The skin lying on the board D is poured out. The amount of paint to be poured onto the fur is determined by means of the tap ο on the paint container L; the taps / p 'are used to drain the pump. The tube N attached to the bottom of the funnel B directs the paint thrown off by the rotational movement of the board D and draining into the funnel B back into the paint container L , so that one and the same color quantum can be continued for as long as it is used to dye the hide can until the same appears sufficiently saturated or until the dye is used up. A small tube O leads approximately above the piston / standing paint to the paint container L. A prop box P, FIG. 2, can be attached to the sheet metal jacket C. On one side of the frame, preferably on the opposite side of the drive, a rod R, Fig. 1 and 2, can be slidably attached to hang the skins to be dyed and already dyed on the same. The dyeing operation proceeds as follows with the aid of the machine just described: The skin to be colored is placed on the wooden disc D , fixed by setting up the board d * , and primed. The board d ^{2 is then} knocked down and the wooden disc D is set in rotation by placing the drive belt on the fixed pulley G ^1. Through this the pump also comes into operation, by means of which paint is poured onto the skin. As a result of the centrifugal force, this color is evenly distributed over the whole skin, the excess color is thrown off over the edge of the board D into the coat C , from where it enters the funnel B and further, as already mentioned, back into the paint container L. In about 10 to 15 minutes the color operation is completed on a skin. It should also be noted that up to five such machines can easily be set up in a row and can be kept in action by a single impulse, and that from one single pump from the necessary paint for all five machines can be spent. For each five machines only a single worker is necessary, who can easily work in twelve hours Can dye 150 skins. In addition, the skins dyed by this process appear both each individually colored as completely uniform and spotless. Also, without changing the essence of my invention, four wooden discs can be used in a single large sheet metal jacket, divided into its four quadrants, see above be attached so that the axes of the four wooden disks go through from a central shaft any transmission can be set in rotation. The paint tube must be accordingly divide into four outflow tubes, one of which each opens out over the middle of a wooden disc. The paint thrown off can be collected in one large or four small funnels will. It is also a matter of course that the sheet metal casing and wooden disks depend on the The size of the skins to be dyed can be changed. Patent A ν claims: i. The process of making skins by applying Centrifugal force for diffusion and equal moderate distribution of the color applied to the center of the hide. 2. For dyeing skins, an apparatus consisting essentially of one or more Horizontal ones that can be set in rotation and that carry the skin or skins to be dyed Discs in combination with a device for applying the paint to the Fell and a device for collecting and guiding back the through the rotating Paint is thrown off from the panes. For this purpose ι sheet of drawings. BERLIN. PRINTED JN THE REICHSDRUCKEREr.