Patent GB-190605015-A (GB)
Title: Apparatus for Making White Lead or similar Products.
Inventor: HEIDE HENRY CONRAD
Filed: 1906-03-01
Granted: 1907-03-01
Abstract: 5015. Heide, H. C., [Union Lead and Oil Co.]. March 1. Lifts ; loading and unloading. - Relates to apparatus for making white lead and similar products, and consists in mechanism for feeding the trays of comminuted lead &c. into the corroding chambers. The corroding chambers 1, 2, Fig. 1, are arranged in two sets, the chambers in each set being conveniently arranged in pairs ; the pipes for supplying the corroding gases are arranged in alley-ways 3, 4. The chambers are open at both ends; at the outer ends of each set is mechanism 5 for advancing the comminuted lead into the chambers; this mechanism is mounted on carriages 6 running on tracks 7. A washing - machine 8 is situated between the two sets of chambers ; the supports carrying the corroded product are received on a platform 9 carried by an endless conveyer 10 beneath scrubbing-devices 11, after which the supports are delivered on to cars 12 which run round the apparatus on a track 13, while the corroded product passes to a screening-machine 14, and from there to settling-tanks. The carriage 6 consists of a rectangular base frame carrying at its corners hollow standards 16, Fig. 4. These standards receive tubular uprights 17 which carry a rectanguiar frame 18 ; a frame 20 is suspended from the frame 18, and the frame 20 supports a lower frame consisting of longitudinal bars 22 and transverse girders 23 ; these girders have grooved extensions which engage guiding-ribs 24 on the standards 16. The trays 29 for the comminuted lead consist of parallel bars secured by longitudinal bars 30, 31, and the trays move between guides 27, 28 which are mounted on the side bars 22 by means of brackets 25, 26. The trays are advanced by a pair of endless chains 33, which are mounted on shafts 34 journaled in the side bars 22 ; the upper stretches of the two chains are arranged opposite the space between the guides 27, 28, and the chains are connected at intervals by transverse angle-bars which engage the rear ends of the trays. The posts 17 and the parts carried by them can be adjusted vertically by means of the screwthreaded shafts 36 and nuts 37 ; each shaft 36 is rotated by bevel-wheels 38, 39 ; the wheels 39 are mounted on transverse shafts, those at the front end of the machine being fixed to the shaft 40, Fig. 5, which is connected by an endless chain to the corresponding shaft at the rear end of the machine. The shaft 40 is driven by the chain 45 from the transverse shaft 46, which is journaled at one end to one of the side bars of the framing and at the other end to an intermediate bar 47. The shaft 46 is driven by the chain 49, the shaft 51 and the chain 50 from the power shaft 48. A clutch 52 operated by a hand-lever 53 allows rotation of the shafts 48, 51 independently of the shaft 46 when required. The shaft 34 which carries the chains 33 is driven by chains 55, 56 from a shaft 54 ; the shaft 54 is journaled in the side bars 22 and carries a worm-wheel which engages with a worm 58 ; the worm 58 is loosely keyed to a vertical shaft 59 which slides loosely through bearings on the bar 22. The shaft 59 is journaled in a bracket carried by the base frame and is connected by bevel-gearing with the shaft 51. A clutch 64 operated by a lever 64<a> allows the shafts 51, 59 to be disconnected when required. A melting-pot from which molten lead is delivered through perforated orifices is situated in the upper part of the framing, and suitable guides are provided to direct the lead on to the trays. When the lead in one chamber has been completely corroded, the ends of the chamber are opened, the guides for the trays are adjusted, and fresh trays are supplied by the pushing chains 33, the trays carrying the corroded product being pushed out at the other end of the chamber. When the new line of trays has been advanced into the chamber, the advancing mechanism is stopped and is moved vertically into line with the next tier, these operations being carried out by manipulation of the clutches 52, 64 ; the process is then repeated. When a chamber is filled, its ends are closed up and the advancing mechanism is moved on its carriage to another chamber.