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    • 71. 发明专利
    • An Improved Method of and Means for Manufacturing Mantles for Incandescent Gas Lighting.
    • GB190921942A
    • 1910-03-10
    • GB190921942D
    • 1909-03-20
    • WERBER ISIDOR
    • WERBER ISIDOR
    • F21H3/00
    • 21,942. Werber, I. March 20, [Convention date]. Mantles.-The ends of inverted or upright mantles are closed in such a way that a uniform contracted part or " spider " is obtained. A piece of hosa is drawn over a mandrel 3 tapered at the top end, the part above the mandrel is drawn together uniformly from all sides by an iris diaphragm &c., and is severed above the diaphragm. The mantle is either tied and sewn on a suitable sewing-machine, or tied and sewn. To obtain a very thin spider, the contracted collar is seized by a clamping-device to transfer the mantle to the sewing-machine. The mandrel 3 is enclosed by a sleeve 2 and pressed upwards by a spring 5; and a clamping-ring 7 on the sleeve 2 serves as a stop for the hose, which can be held by tightening the clampingÀscrew. The iris diaphragm 10 is vertically adjustable on an upright 12, and is contracted by turning a handle 11. The clampingÀdevice, Fig. 6, may consist of a number of resilient arms 15, connected at their upper end by a head 16, and drawn together by a sliding sleeve 17. A central mandrel 18 may be provided, and is inserted in the contracted opening of the mantle. The clamping- device may be so supported on the sewing-machine that it can be rotated about its own axis. The sewing may be effected in a spiral and a radial direction. An alternative clamping-device comprises a spring button in two parts 23, 24, Fig. 9, one part being mounted in a recess 22 at the top of the mandrel 3. When the hose has been contracted and cut, the member 24 is pressed into engagement with the member 23, as shown in Fig. 9. Thus, the flange on the opening of the mantle is pressed flat instead of forming a collar. Another form of clamping-device, Fig. 13, comprises a sleeve 25 inserted in an axial bore of the mandrel 3, and a pin 27 inserted in the sleeve, the opening of the mantle being gripped between flanges 26, 28.
    • 72. 发明专利
    • Improved Method and Apparatus for Manufacturing Incandescent Gas Mantles.
    • GB190905093A
    • 1910-02-24
    • GB190905093D
    • 1909-03-02
    • ROBIN JACOB IGNOT
    • ROBIN JACOB IGNOT
    • F21H3/00
    • 5093. Robin, J. I. March Mantles.-A tubular fabric for making incandescent mantles is clipped upon two mandrels arranged in alinement with one another, is stretched by slightly separating the mandrels, and is twisted by rotating one or both of them. The fabric is finally tied on both sides A, B of the twist and severed at the twist, and may be finished by reversing it. Instead of severing the fabric, the portion on one mandrel may be folded back over that on the other. In one form of apparatus, the mandrels a, d are clamped respectively in a fixed chuck c, and in a chuck e on a rotatable and slidable shaft g, preferably mounted in a fixed sleeve h, the split end of which may be caused to grip the shaft by means of a screw l. The clipping- devices may comprise pads r on springs q pressed upon the mandrels by springs x acting through sliding clutch-rings s, which are released respectively by a pedal acting through a link t, lever u, and fork v, and by a hand lever w. Mandrels for upright mantles are preferably provided with projecting pins at their ends, around which the mantle is twisted.