Patent GB-144422-A (GB)
Title: A new or improved soldering machine
IPC: B23K1/14
Filed: 1919-04-02
Abstract: 144,422. Bennett, G. H., and Williamson, G. E. April 2, 1919. Soldering.-In a machine for soldering one or both ends to the 'bodies of boxes or cases, petrol and other cans, or vessels of any shape, of the type in which the articles are mounted in a chainlike carrier and are given a positive rotation through pinions engaging a fixed rack while being traversed over the bed, the carrier consists of a pair of chains connected by a series of transverse horizontal spindles, each having a sleeve with arms at its ends forming bearings for the spindles of the box gripping disks, the distance between which is varied so as to admit and release the boxes. Pinions on the transverse spindles gear with racks on each side of the machine. Two chains a, each mounted on three sprocket wheels b<1>, b, b<2>, are driven from the main shaft e by bevel gear e<2>, d<2> and worm gear d', the shaft d being in two parts connected by a hand-operated clutch 15. In the chains are mounted a series of transverse spindles a<1>, Fig. 5, on each of which is carried a sleeve f with arms f<1>, f<2> having bearings to receive the spindles g, p of the disks g<1>, p<1> for holding the boxes &c. The disk g<1> is recessed to receive the rim on the bottom of the box. The spindle p is connected by a pin r and slot p<2> to a sleeve k, and is pressed out by a spring n and retracted by a forked lever s to clamp and release the box. The spindle g and sleeve k are provided with pinions g<3>, k<1> engaging spur wheels h, l on bushes h<1>, l' to which are connected pinions h<2>, m, which mesh with fixed racks i', i<2>, during the traverse of the chains, so as to give a positive rotation. The arm f<1> is supported by the plain rail i<3>. The boxes are fed from an inclined slideway, and in succession are received on inclined platforms w carried by the sleeves f. In this position, the disk p<1> of the previous clamp is held in its retracted position by a bar u with inclined ends engaging the roller s<2> on the lever s. When the roller moves out of contact with the bar the box is clamped between the disks. When the carriers reach the top of this portion of the track which is inclined, they then move along a horizontal track over a fluxing bath 3, solder bath 5, cooling space 11, and wiper 12. and the finished articles are released from the disks by an inclined bar v and fall into a guideway and receptacle beneath the machine. The fluxing bath may be provided with a disk 4 rotated by contact with the article, or may have a fixed brush. The solder may be supplied by a roller 6 rotated by chain and spur gear from the shaft d, and having sharp scraper-like edges 6<1> at its rear end to remove surplus solder. The soldering may also be effected by an apparatus such as is described in Specification 15227/15, and a separate friction wheel or scraper provided rotated either in the plane of motion of the boxes or at right-angles thereto. The cooling space 11 may have one or more cold air jets for rapid cooling. The wiper 12 for removing surplus flux is rotated step by step in a water bath so as to present fresh surfaces to the work. It may consist of a stiff cylindrical brush covered with fabric. According to the Provisional Specification, the wiper may be rapidly rotated.