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    • 25. 发明专利
    • Means for manufacturing metallic bellows
    • GB263507A
    • 1926-12-28
    • GB1895925
    • 1925-07-25
    • HARTLEY RUSSELL GWENNAP MOORETHOMAS PARKER RIGBY
    • B21D15/06
    • 263,507. Moore, H. R. G., and Rigby, T. P. July 25, 1925. Bellows. - In making cylindrical metallic bellows, particularly for measuring fluid pressures or for operating mechanism through the agency of fluid pressure, after forming and preliminarily corrugating the shell, the corrugations are deepened to final form by spinning in an apparatus having two eccentrically mounted and rela.- tively adjustable narrow internal rolls. The shell may be formed by cupping a blank and then drawing through a series of dies of diminishing bore or may be formed by spinning in a series of operations, annealing being effected after each operation. A disc of phosphor bronze &c. may be first spun into the form shown in Fig. 2 on a steel mandrel, being deepened in the next operation and then spun into cylindrical form. In the next operation, Fig. 5, a conical end is spun on a brass cone fitted into the mandrel and a hole then cut in the end to facilitate gripping during annealing operations and subsequent operation in the lathe. The shell is then completed to the desired length in three operations by an inclined roller 1, Fig. 9, having its corners ground in the form of a quarter ellipse so that the work hugs the mandrel closely. The mouth of the shell is trimmed off square and formed with a shallow stiffening flange. The shell is then corrugated in four operations. In the first operations corrugations of the form shown in Fig. 15 are spun in the shell which is placed on a collapsable mandrel consisting of box wood sections 2, Fig. 14, with equi-distant collars, mounted on a core, preferably tapered. Annealing is then again effected. For the subsequent operations which deepen the corrugations and contract the shell axiallv the shell is secured to a chuck 14, Fig. 15, on a lathe nose adapter 13 and is corrugated by a spinning roller engaged between internal rollers 3, 4 loosely mounted on a shaft 5 which is eccentrically mounted in a tube 6 secured to a tool post 12 having a hand rest 9. A pointer 10 on the tool post indicates the position of the roller 3. The shaft 8 is adjusted in the tube by a handle 7 so as to set the rollers to the required depth and to withdraw them for removal purposes and for moving them from one corrugation to the next. The roller 3 has a long boss on which the roller 4 is slid during operation by a non-rotatable barrel 8 of similar eccentricity to the shaft 5. The barrel is grooved to engage a collar on the roller 4 and slidably supports a hard wood ring 15 for supporting the open end of a long shell. Spinning tools and rollers of successively reduced thickness are used in the three final operations so that the rollers may be wide enough in the earlier operations to support the shell against the pressure of the tool and in the last operation narrow enough to strain harder the outer curves of the corrugations. The flanged end of the shell is spun over in the second operation to form a head and the final annealing effected after the first of these three operations.
    • 29. 发明专利
    • Improvements relating to machines for decorating pottery or other ware
    • GB757697A
    • 1956-09-26
    • GB2792552
    • 1952-11-06
    • MALKIN AND COMPANY LTD FMAURICE WHISTON ABBERLEYSAMUEL THOMAS PARKER
    • ABBERLEY MAURICE WHISTONPARKER SAMUEL THOMAS
    • B28B11/00
    • A decorating machine has a rotatable work-support or chuck, and one or more driven rotating applicator rollers for depositing one or more bands of decoration upon the workpiece together with means whereby the linear speed of that part of the workpiece with which the applicator roller or rollers is or are in contact and the linear speed of the applicator roller or each of them are made to correspond as nearly as practicable. A work support 11 is rotated continuously by a flexible shaft 13 driven by an infinitely variable friction gear 12 adjustable to the required speed by a pedal 16a which disengages the gear and a pushrod 16 which is operated to alter its setting. The gear 12 is driven by a motor 14 through speed reducing mechanism 81. The motor also drives a suction pump 20 which, through a pipe 21, holds the workpiece on the work support. An arm 75 has a reservoir for colour which is fed to a driven rller 74 by an adjustable doctor blade. The roller 74 drives a feed roller 73 in contact with the coating rollers 70. The rollers 70 are rigidly mounted on metal arbors which are separated by guides and loosely mounted on journals on a shaft 71. The roller 74 is operated by a flexible drive shaft 80 driven by the speed reducing gear 81. The applicator is normally locked in the off position, positioning a workpiece on the work support seals a vacuum port and withdraws a bolt to release the applicator. More than one applicator may be used to engage the edge or surface of the workpiece. The work support rotates five times then operates a switch starting a motor 31 operating the arm carrying the applicator and means for centring each workpiece. The switch is operated by a rod which rides against a rim cam 34 attached to a member of a friction clutch the other member of which is a face of a sprocket 36 driven from the shaft 13 with a speed reduction of 1 to 5. The motor 31 drives a cam which operates a plunger a projection on which engages a projection on the cam 34 and stops it for a predetermined interval, it also opens a valve to allow one workpiece to be removed and another to replace it. To prevent creep of the cam a brake 67 is operated from a cam 69 on a shaft driven by the motor 31. A shaft 50a driven by the motor has a cam 51 for opening the valve in the suction line and another cam which actuates centring jaws 55 which have flexible connections to a weight 59 which is operated by a rocking lever 60 from the cam.