Patent GB-190516897-A (GB)
Title: Improvements in Process and Apparatus for Making Thin Plate
Inventor: NEWTON HENRY EDWARD
Filed: 1905-08-21
Granted: 1906-02-08
Abstract: 16,897. Newton, H. E., [Somers, D. M.]. Aug. 21. Rolling. - Very thin metal plates are obtained by beating, pressing as by rolling, and annealing thicker pickled plates in an inert atmosphere either singly or in packs, or by treating packs of pickled plates in air and finally discarding the outside sheets, subsequent pickling being dispensed with. The pickled plates may be cold-rolled before being treated. The Figures show an apparatus for treating sheets in an inert atmosphere, the rolls of the train being at gradually increasing distances apart so that only one pair acts on each plate at one time. The crossed plates are fed between bars 5, Fig. 2, and down grooved plates 2 into the inclined beating-furnace 1, Figs. 2, 9, and 13, and through the throat 28, which is grooved so as to turn the plates and deliver them flatways on to a plate 22 ; this plate is then turned down by means of a handle 24 into the position indicated in dotted lines, and the work fed therefrom to the first set of rolls 65, 66 by a pusher 47 after being positioned relatively to the .rolls by means of sliding fingers 41, operated by a handle 45. The work may be reheated between the pairs of rolls 65, 66 in furnaces, each consisting of two parts 77, 78 and a connecting- section 79, through slots in which pass the feedrolls 87. The work is finally heated in an annealing-furnace 120 similar to the furnaces 77, 78 and passed into an annealing-box 121 which is preferably portable as shown. All the furnaces are preferably heated by gas such as producer gas, the internal pressure being kept above atmospheric so that there will be an exit of inert gas instead of an entrance of air at each bole in the apparatus. The gas and air are supplied from mains 14, 17 to the burners 12 in the combustion chambers 10, 18, Figs. 2 and 9, of the furnace 1, the internal pressure and the direction of the flames being controlled by upper and lower dampers 55, 59, and the passage of the plates from the furnace by sliding pins 32, 33 and a lever 39. The pass of the rolls 65, 66 is adjusted by wedges 67, screws 68. and ratchet mechanisms 69, and the, rolls are either hollow and heated by Bunsen burners or heated by gases from the fnrnaces as shown in Fig. 18. The furnaces 77, 78 and 120 are fitted with Bunsen burners 12, dampers and supports 82 for the work which is advanced at a lower speed than that of the rolls by sets of notched and staggered .disks 87 arranged at intervals on pairs of shafts 84, 85, Fig. 19, driven by gearing 92, 93, 94, 96, clutches 97, and worm gearing 99, 100 from a longitudinal shaft 101. Should two plates enter between any pair of feed-rolls, the upper roll 84 and its bearings will be lifted and, by means of levers 118, rods 116, bell-crank levers 114, rods 113, arms 141, a longitudinal shaft 139, and bell-crank levers 110, 111, catches 108, Fig. 24, are raised to engage the cam-surfaces of the clutch-members 104 and thus to withdraw the pins 103 through the blocks 105, out of notches in the clutch-members 97 and against the action of springs 106, thus stopping the particular or all the feed-rolls with the exception of the rolls of the annealing-furnace 120 and the rolls 125, 126 and 127, 128, the latter pair of which are driven by chain gearing 131 from the first pair. The shaft 139 is provided with hand-levers 142 and with arms 143, 150 for controlling the gas and air supplies to the furnaces and rolls, and operating the feed-stop 146, Fig. 13, in front of the first pair of rolls. The annealing box 121 has a Bunsen burner 136, a sand joint 123 between the upper and lower parts, and an inclined bottom 124. The furnaces and rolls may accommodate a number of sheets or packs side by side.