Patent GB-167798-A (GB)
Title: Improvements in carriages for self acting mules and self acting twiners
IPC: D01H3/04
Filed: 1920-02-23
Abstract: 167,798. Platt Bros. & Co., Ltd., and Hall, H. P. Feb. 23, 1920. Mules and twiners.-A carriage for a mule or twiner is built up of a number of sections composed of metal sheet or plate bent to form a bottom a, Fig. 10, front b and rear c. A plate d, which may be joggled and is provided with a rearwardly extending flange e is secured to the front b to serve as a rest for the spindle rail or box. The back may be provided with an inwardly 'bent flange and the bottom may be embossed with a pressed-out panel. The sections may be coupled together by flanged brackets g, h at the front and rear, and angle-bars k extending across the inside of the bottom. A plate i is interposed between the sections and bolted in position by the bolts l connecting the brackets and angle-bars. The section plates are cut away to allow space for the plate i. An end section J, Fig. 1, for attachment to the square v is strengthened by angle-bars m, n in the angles at the front and rear and by bent angle-bars o, p connected at the centre by a channel bar q. Extensions at the ends of the bars are riveted to the upright flanges of the bars m, n. Brackets r, s are riveted on the outside at the front and rear. and an angle bar t is riveted across the end at the inside. The flanges of these brackets and angle bar are of greater extent than those of the brackets g, h, and angle-bars j. The square is secured to the brackets and angle-bar by bolts u. In an alternative method of strengthening the end section K, Fig. 6, angle-bars w, x are fitted in the angles at the front and back, and bent angle irons y, z are riveted to the bottom. The lower flanges of the bars w, x are cut away to accommodate an anglebar t across the end. Brackets 1, 2 are secured in the inside of the section and bolted in position along with the brackets r, s outside the section. Metal plates 4, 5 are applied to the bottom of the section and secured by rivets which also serve to fasten the bars w, x, y, z. Sections may be coupled together by a plate of sheet metal shaped, to correspond to the outside of the sections and riveted to the abutting edges. In a mule carriage, carriage-bars 9 are supported by rising screws 7, Fig. 10, rivered to brackets 8 bolted to the carriage. The bearing-brackets for the tinroller shaft are secured by bolts &c. on the upper faces of the angle-bars j, Fig. 1, riveted to the plates i at the junctions of the sections. The angle-bars j may be mounted on a plate 13, Fig. 13, extending across the carriage and providedwith flanges 14, 15 for attachment to the front and rear and the bottom of the section. In both cases the flanges of the angle-bars are cut away to form a slot 11, and the supporting-plate is cut away to accommodate the bolts &c. Channelbars 19, Fig. 14, may be employed with flanges 20, 23 for attachment to the section and with keyhole slots through which the bolts may be inserted. Hand-holes 21 mav be formed in the sides of the bar 19 to facilitate the insertion of the bolts. Arrangements for securing the tie-rods. 30, 31 for the spindle rails 52, 53 comprise an angle-iron 24, Fig. 10, cut and bent to fit inside the section, with a vertical extension at the rear and an overhanging arm. Triangular stiffening- plates 25, 26, 27 are fitted and the rods are secured one to the overhanging arm and the other to the plate 26. At the part nearest the headstock, the tie-rods are secured by means of an angle-bar 32, Fig. 15, cut and bent to rest on the channel bar p, Fig. 1, and to have a vertical extension with an overhanging arm. Triangular stiffening-plates are fitted in the corners. The tie-rods are secured to the horizontal portions of the angle bar. A channel bar 54, Fig. 20, may be secured by flanges 55, 56 across the carriage and brackets 58 mounted on it to which the tie-rods may be secured. The upper flange 57 of the channel bar has a turned-over edge. Standards may be employed bolted to the bottom and rear of the sections with suitable ears for the attachment of the tie-rods. The faller-relieving motion and middle drawing-out tightening arrangement are mounted on suitable brackets. The end section remote from the headstock is closed by a plate secured to an angle-iron cut and bent to fit in the section and adapted to be secured to the front, bottom. and rear. The uprights carrying the faller shafts are riveted to the sections in suitable positions. At parts of a mule carriage opposite the back stops, reinforcing-plates 39, Fig. 15, riveted to the sections may be applied, and a cross strut similar to the channel bar 19, Fig. 14, may be used in addition. A rail 35, Fig. 15, to support the top and rear covers is mounted on the tie-rod brackets or supports and on a flange of a. triangular bracket secured on the end plate remote from the headstock. The top covers 43, Fig. 15, are of sheet metal and rest on the rail 35 and the upper spindle rail 53. They may rest in rabbets on the rails, or mav have pegs 46 engaging holes in the rail 35, or be bent to embrace the edge of the rail 35. The rear covers 45 are of wood or sheet metal, and may be suspended from headed studs 48 on the rail 35 and be provided with strips 49 to engage the rear wall of the section, or they may slide in grooves in the tie-rod brackets. The front cover 51 is of wood or sheet metal, and is pivoted to the lower spindle rail 52 and rests against the upper one. The spindle rails may be of wood connected by metal brackets, or may be formed wholly of metal. Specifications 28507/04 and 9747/06 are referred to.