Patent GB-190707099-A (GB)
Title: Improvements in and relating to Dyeing with the Jigger.
Inventor: PETERS WILLY
Filed: 1907-03-25
Granted: 1907-10-24
Abstract: 7099. Peters, W. March 25. Dyeing cloth with a modified jigger machine. Instead of gradually adding the dye bath to the empty or partially filled jigger vat, while the cloth is being passed through, for example by means of spurt pipes from a vat at a higher level, the entire bath is introduced into the jigger vat, which is divided into several compartments. The cloth, which during the whole operation dips to the same depth in the bath, runs forwards and backwards, with changing velocity, as usual, through one or more of these compartments, which are in communication. To these compartments the " compensating - bath " is added from the remaining compartment or compartments by any suitable means, for example by means of a gradually and automatically rising uottom which causes the compensating-bath to pour over the walls of its compartment. All the compartments of the vat may be put in communication when desired. Uniform results are stated to be obtained even with such materials as wool, silk, and half silk. The compartments 4, 5, 6 of the jigger vat 1 are filled with dye liquor and, depend. ing upon the position of clutches 21, 22, which are governed by a lever 23 kept in proper position by means of slots 25, the cloth 66 runs from one of the two adjustable and interchangeable winding-rollers 10, 11 over guiderollers 62 and stretchers 63, to the other, passing through the compartments 4, 6 containing the " starting bath." Preferably when one-third of the cloth has been run off the first roller, the movable bottom 8, which fits tightly against the sides of the third compartment 5 by means of felt strips 27 or the like, is caused to rise slowly by the rotation of pinions 32, 33 gearing with the upper toothed parts 30, 31 of the rods 28, 29 which support it. The compensating - bath therefore passes continuously and uniformly into the two other compartments 4, 6. It is advantageous to regulate the movement of the bottom 8 so that when the remainder of the cloth has run off the first roller about one-third of the compensating- bath has been used, and so that the remainder of the bath is used while the cloth is run back on to the first roller after reversal of the winding-rollers. When the bottom 8 has reached the highest permissible position, a pin 60 on one of the supporting rods 28 engages with a double lever 59 pivoted at a point 61 on one of the main supports 9 of the machine, and causes it to turn a one-armed lever 58 the pivot 46 of which also carries a pawl 40 and so disengages the latter from a ratchet-wheel 39 which it drives. This disengagement brings to a stop the movement of the pinions 32, 33 which are carried by shafts 34, 35 connected by bevel-gearing 37, 38, since the first shaft 34 carries, and is driven through, the ratchet-wheel 39. The dye-liquor fills the three compartments 4, 5, 6 in one body, since it has entered the middle compartment 5 below the movable bottom 8 through openings 7 at the base of each partition wall 2, 3. If the bath is to be used again, fresh dye-stuff mav be added and an intimate mixture produced in all the compartments. To start again, the clutches 21, 22 and pawls 40, 53 are thrown out of engagement, and the bottom 8 is lowered by hand, for instance, by means of a crank-handle fixed at the end of one of the shafts 34, until it comes below the tops of the openings 7, so that all the compartments 4, 5, 6 are in communication and the dye liquor can be mixed up thoroughly. The machine is driven through a main shaft 14 which carries fast and loose pulleys 12, 13, bevel-wheels 16, 18 which gear with other bevel-wheels 15, 17 on the roller shafts 19, 20, and a pinion 51 gearing with a cog wheel 52 which drives the ratchet - wheel 39 through suitable mechanism, Fig. 4. This mechanism consists of a crank-arm 45 fastened to the axle of the cogwheel 52 and provided with a slot 44 in which a pin 43, carried by a rod 42, is adjustable. The other end of the rod 42 is pivoted to one end of a double arm 41, which embraces the driving ratchet-wheel 39 and is pivoted at its other end to the shaft 34 of this wheel. This arm carries the driving-pawl 40 pivoted on a pin 46 which is cut flat in two places 47, 48, Fig. 6. When a flat spring 49 lies on the first flat 47, the pawl is held in engagement with the ratchet-wheel 39 and drives it forward, upon each revolution of the cog-wheel 52, a distance depending upon the position of the pin 43 in the slot 44. When the pawl is moved out of engagement by means of the one-armed lever 58 previously described, as by the action of the double lever 59, it is held in this position by the spring 49 bearing on the second flat. To prevent backward rotation of the ratchet-wheel 39, a Second ratchet-wheel 50 is provided at the other 'end of the same shaft 34, and is engaged by a pawl 53, Fig. 8. A spring-governed stamp 57 in a slot 56 of the pawl 53 works with a flat side 54 of the pin 55 on which the pawl is fixed, so that the latter is held in engagement. The stamp also holds the pawl when thrown out of engagement. Pipes 65 in the bottom of the vat serve for pumping the dye-liquor in and out, for adding water, and, when needed, for heating the liquor by means of steam.