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    • 41. 发明申请
    • METHOD FOR MAKING ELONGATE GLOVE, SUCH AS NITRILE GLOVE FOR GLOVE BOX, ON PORCELAIN MOLD
    • 用于制造薄膜的方法,例如用于玻璃盒的玻璃杯,用于金属模具
    • WO2007067230A1
    • 2007-06-14
    • PCT/US2006/032966
    • 2006-08-22
    • NORTH SAFETY PRODUCTS, INC.
    • BROWN, James, WalterBROWN, Charles, Terrence
    • A41D19/00B28B21/46B28B1/38
    • B29C41/14B29C33/38B29C41/08B29K2909/02
    • When an elongate glove, such as a nitrile glove for a glove box, is made on a porcelain mold having a hand-defining portion, having an arm-defining portion, which extends from the hand-defining portion and which has an overall length at least two or more times the overall length of the hand-defining portion, having a substantially conical sub-portion, which flares upwardly and outwardly, when the porcelain mold is oriented in a dipping orientation, substantially the entire exterior of the porcelain mold is sandblasted before the porcelain mold is dipped successively into a bath containing a coagulating agent and into a bath containing a latex, then allowed to dwell in the bath containing the latex until enough of the latex coagulates to form a wet latex film on the porcelain mold, and then withdrawn with the wet latex film formed thereon from the bath containing the latex.
    • 当诸如手套箱的腈手套的细长手套在具有手部限定部分的瓷模上制成时,其具有臂部限定部分,其从手部限定部分延伸并具有总长度 至少两次或更多次的手部限定部分的总长度,具有大致圆锥形的子部分,当陶瓷模具以浸渍方向定向时,向上和向外张开,基本上整个瓷器模具的外部都被喷砂 在将瓷模连续浸渍到含有凝固剂的浴中并放入含有胶乳的浴中之前,使其静置在含有胶乳的浴中,直到足够的胶乳凝结,在瓷模上形成湿胶乳膜, 然后从含有胶乳的浴中用其形成的湿胶乳膜取出。
    • 48. 发明专利
    • CONCRETE PIPES
    • GB1389738A
    • 1975-04-09
    • GB2360072
    • 1972-05-19
    • STELMO LTD LUCKETT P R MOBBS JHARRIS A J
    • B28B21/46B28B21/62B28B21/56B28B21/06F16L9/08
    • 1389738 Coiling helices on rotating mandrel STELMO Ltd P R LUCKETT J S MOBBS and A J HARRIS 7 May 1973 [19 May 1972] 23600/72 Heading B3E [Also in Divisions F2 and B5] In a method of making reinforced concrete pipes, a layer of green concrete is deposited on a mandrel and receives helical windings of a flexible binding member and a flexible reinforcing member under tension before the concrete sets. Apparatus for making the pipes includes a mounting 10, 25 for a rotatable mandrel 27 surrounded by a hopper 29 which is movable along the mandrel axis, means 31, 32 for supplying a flexible binding member for winding about concrete deposited through the hopper on to the mandrel and means 38, 40, 48 for supplying a flexible reinforcing member 35 under tension for winding about the concrete before it sets. As shown, a motor 43 drives a set of winding pulleys 40 and the mandrel 27 through sprockets 46, 41, 42, 26 so that the peripheral speed of the pulleys 40 is less than that of the mandrel 27. The reinforcing member 35 is a high tension steel wire which is passed around pulleys 49, 51, 52 on a hydraulic ram 48 mounted on a platform 13. Two sets of such winding arrangement may be provided. The platform 13, which also mounts the hopper 29 and vibrators 30 can be raised or lowered along the mandrel on four chains 15 anchored to an hydraulic ram 19. The binding member, which may be polypropylene string or a woven, textile or metallic tape, is taken from a bobbin 31 and through a tensioner 32. The platform 13 is initially at its lowermost position and the binding and reinforcing members are attached to an end plate (60) (Fig. 3, not shown) of the mandrel which also mounts longitudinal wire reinforcements. Concrete is poured into the hopper 29 which is vibrated and the platform 13 is raised. A further layer of concrete may be deposited on the wound layers. A metal spigot (70), (Fig. 2, not shown), may be bound in the concrete at one end of the mandrel for connecting successive pipe lengths together.