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    • 44. 发明专利
    • Improvements relating to machines for making tubes from paper or other like flexible sheets or strips
    • GB487905A
    • 1938-06-28
    • GB938337
    • 1937-04-02
    • ELLISON GEORGE LTDFRANCIS CHARLES GARNER
    • B31C1/00
    • 487,905. Machines for making paper &c. tubes. ELLISON, Ltd., G., and GARNER, F. C. April 2, 1937, No. 9383. [Class 99 (ii)] Tubes of paper, impregnated fabric, &c. are made by winding sheet or strip material h on an iron or steel mandrel g, in a machine which comprises essentially a rotatable hollow main roller a housing one or more stationary electromagnets d each having a pole or poles f adjacent the front thereof, the mandrel being supported in operative relationship with the roller at a position adjacent the poles d by a driving roller e which may be electrically heated. The paper &c. is supplied to the mandrel from a tray or roll i, being tensioned and guided by rollers 13, j respectively which may also be electrically heated. For compensating variations in the position of the mandrel due to the increasing thickness of the tube being formed thereon, means, including a rotatable shaft r, is provided for adjusting the positions of the electromagnets and the driving roller relatively to the main roller. As shown, the shaft r carries a worm q for engagement with a toothed segment p secured to a trunnion n of the supporting member k of the electromagnets ; the shaft is also screw-threaded and provided with a nut s associated with the driving roller through a lever t, shaft u and arms v. The machine also includes a bar 2, mounted on a counterbalanced frame 4 pivoted at 5 to slidable rollers 6, for initially locating the front end of the paper sheet with respect to the mandrel.
    • 45. 发明专利
    • Improvements relating to dash pots
    • GB381635A
    • 1932-10-13
    • GB2132631
    • 1931-07-25
    • ELLISON GEORGE LTDGEORGE ELLISON
    • F16F9/10
    • 381,635. Dashpots. ELLISON, Ltd., G. and ELLISON, G., Wellhead Lane Works, Perry Bar, Birmingham. July 25, 1931, No. 21336. [Class 108 (iii).] A dashpot which is adapted for controlling the solenoid plunger in an electric circuit-breaker tripping mechanism comprises a cylinder a containing oil or other fluid, the cylinder having a tapered bore at b in which normally rests the outer piston portion f. The piston-rod g carries an inner portion e of the piston, the outer and inner portions of the piston being tapered internally and externally so that there is a normal working clearance between these portions. A spring j extends between the lower piston portion and a sleeve h which is normally held against a shoulder i on the piston-rod, the upper end of the sleeve being a small distance from the transverse portion of the outer piston part f. With moderate pulls on the piston corresponding to moderate overloads the inner piston portion is first moved upward relatively to the outer piston portion until the upper end of the sleeve h engages the transverse part of the outer portion f so that the space between the piston portions, while greatly reduced, is not completely closed and the oil has two parallel paths, one between the periphery of the outer piston portion and the cylinder wall and the other between the two piston portions, the oil in the latter path passing through a hole or holes l in the upper piston portion. If desired the flow through the latter path may be further retarded by a plate m resting on the upper piston portion as shown. With very strong forces applied suddenly to the piston, however, the upward force on the lower piston portion, in addition to the movement between the piston portions already described, produces extra relative motion between the pistonportions due to compression of the spring j, so that the space between these portions is completely closed and the flow of oil entirely restricted to the path between the periphery of the outer piston portion and the wall of the cylinder. After the force acting on the piston rod is removed the piston parts return to their original position, the rate of restoration being rapid owing to the separation of the piston parts due to the spring j and also to relative motion between the upper end of the sleeve h and the transverse part of the outer piston portion f. The disc m rises in the return motion allowing a free flow of oil through the holes l. Specification 218,137, [Class 108 (iii), Springs &c.], is referred to.
    • 46. 发明专利
    • Improvements relating to overhead high-tension electric switchfuses
    • GB375982A
    • 1932-07-07
    • GB1703031
    • 1931-06-11
    • ELLISON GEORGE LTDHERBERT CHRISTOPHER FOX
    • H01H3/36
    • 375,982. Air-break switches. ELLISON, Ltd., G. and FOX, H. C., Wellhead Lane Works, Perry Barr, Birmingham. June 11, 1931, No. 17030. [Class 38 (v).] Switch fuses for mounting on the poles carrying outdoor overhead H.T. power lines have a carrier for the movable contacts which is attached to a flexible member or members passing over a pulley or a plurality of coaxial pulleys so that the switch may be given normal opening and closing movements, by means of the flexible member or members moving the carrier through an arc of a circle about the axis of the pulley or pulleys and it may be lowered to or raised from a position at which the fuses can be conveniently renewed by movement of the carrier from or to the pulley or pulleys. As shown in the Figure, fixed contacts a, bare bridged by moving contacts c, d carried by insulators e on a horizontal bar or a pair of horizontal bars f. These bars are attached by means of metal blocks g to a pair of steel or other ropes h, chains or other flexible members passing over upper grooved pulleys i and also around lower drums j. The axis of rotation of the pulleys i is arranged to be approximately coincident with the lower movable contacts c. The lower ends of the ropes are coiled in opposite directions round the drums so that when the drums are rotated by means of a bar t acting as a hand lever the switch may be rotated about the pulley axis to break the circuit or by continued rotation of the drums the movable switch fuse structure may be lowered to a convenient position in which the fuses connected between the movable contacts may be replaced. The switch may be locked in the open, closed or lowered position by removing the hand lever bar t from the lugs n and passing it through one of a series of longitudinal holes o in the drum j which is coincident with a hole in the fixed bracket m supporting the drum. The bar t may be locked in this position by means of the padlock v. The ropes h are provided with counterweights p and the upper switch contacts may be provided with arc horns r.
    • 47. 发明专利
    • Improvements relating to electric switches or circuit breakers
    • GB345454A
    • 1931-03-26
    • GB649630
    • 1930-02-27
    • ELLISON GEORGE LTDJAMES ANDERSON
    • H01H33/18
    • 345,454. Arc-rupturing in switches. ELLISON, Ltd. G. and ANDERSON, J., Wellhead Lane Works, Perry Barr, Birmingham. Feb. 27, 1930, No. 6496. [Class 38 (v).] In a high-power switch a plurality of spaced plates are arranged at right-angles to the direction of motion of a contact which moves through apertures in the plates to engage and disengage a fixed contact, a magnet pole passing through the plates and being arranged at one side of the apertures therein, and an iron or steel rod or rods being arranged parallel with the magnet pole, a magnet winding being situated at one end of the magnet pole and rods. As shown in the Figure the arcing contacts b carried by the bridge member are withdrawn from fixed contact plates a through apertures c in a series of separated insulated non-magnetic plates d arranged at right-angles to the motion of the contact. A radial magnetic field is produced in the spaces between the plates d by an electromagnet f on a central iron or steel rod e, the return magnetic path passing through a series of insulated magnetic rods g spaced around the periphery of the plates d, and a magnetic plate n. This radial field causes the arcs drawn between contacts a, b to be divided into short sections which are whirled around in the air spaces between the plates d until extinguished. The arcing contacts b together with the main contacts i which engage contacts h at the ends of the rods e are mounted resiliently on the bridge carried by the operating- rod k. The blowout coils f are connected by members between the contacts a and the lead-in conductors. If desired, the mains contacts may be omitted.