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    • 1. 发明专利
    • Improved apparatus for moulding, blocking or otherwise shaping articles such as hats formed from sheet materials
    • GB456896A
    • 1936-11-16
    • GB1176535
    • 1935-04-16
    • GEORGE DAVID WEIR
    • A42C1/04
    • 456,896. Hats. WEIR, G. D., 37, Burrindi Road, Caulfield, Victoria, Australia. April 16, 1935, Nos. 11765 and 11766. Convention dates, April 21, 1934 and May 5, 1934. [Class 63] [See also Group XVI] Apparatus for moulding, blocking, or otherwise shaping articles, such as hats formed from sheet materials, comprises a casing having a vacuum chamber therein on which is disposed a perforated mould to receive the sheet material, hat, or other article to be shaped, a movable mould being adapted under the action of vacuum and compressed air respectively to engage and disengage with the perforated mould to cause the hat &c. to conform approximately to the shape of the mould, and a resilient pressure creating and moulding member being also provided, which, after the movable mould has effected its moulding operation, is adapted under the action of vacuum to close on to and grip the material on the perforated mould and cause it to conform exactly to the shape of the mould and to complete the moulding or blocking operation. For shaping and blocking felt or straw hats or the like, the apparatus comprises a main vacuum chamber 3, round the open top of which is a perforated circular plate 4 and in which is situated a removable perforated hat mould 5, held in position by a detachable flange 7a. By changing the mould 5 or the flange 7a hats with different crowns or brims may be obtained. Superimposed above the mould 5 is a movable counter mould 18 adjustably mounted on a cross-head 19 which is connected at each end to rods 20 carried by pistons 21, so that on the application of suction to the cylinders 22, the cross head 19 descends bringing the counter mould 18 into engagement with the hat which has been arranged in the mould 5. At the same time, the brim of the hat in the mould is stretched by means of gripping elements 23 which comprise pivoted fingers which grip the hat brim when screwed tight and which are carried by flexible bands 25 connected to pistons 26, so that upon applying suction to the cylinders 27 the stretching fingers 23 move radially outwards. Vacuum compartments 30 are arranged beneath the perforated plate 4 and these are connected to a combined vacuum and compressed air pump through a common pipe fitted with a four-way valve which also controls pipes leading to the cylinders 22 and 27 and the chamber 3, all of which are provided where necessary with suitable valves. A resilient, pressure-creating, moulding member 12, formed of rubber reinforced with metallic tubes or helically wound wire, is supported on a hinged frame mounted on the edge of the table 4 by a double hinge arrangement, so that the member 12 may be folded back clear of the mould 5, and disposed within the vacuum chamber 3 is an electric heater and a steam pipe 11. In operation, a hat 17 which is already roughly shaped is placed in the mould 5 so that the rim rests on the flange 7a and the crown seats in the hollow of the mould, and a felt liner 45 is positioned thereover. The movable mould 18 is then drawn into the mould 5 and the stretching fingers 23 are operated by operating all the cylinders 22, 27 simultaneously, after which compressed air is admitted to the cylinders 22 and the member 18 is raised. The resilient moulding member 12 is then adjusted to cover the entire surface of the perforated table 4 and the vacuum compartments 30 are put in communication with the chamber 3 so that the member 12 is drawn into and conforms closely to the shape of the mould 5. The vacuum pump is then operated and applies a greater suction force to complete the shaping operation.
    • 2. 发明专利
    • Improved apparatus for pressing together parts of wood or similar material, more particularly for shaping and uniting wood plies and veneering
    • GB456966A
    • 1936-11-16
    • GB1498336
    • 1935-04-16
    • GEORGE DAVID WEIR
    • B27D1/08
    • 456,966. Built-up boards. WEIR, G. D., 37, Burrindi Road, Caulfield, Victoria, Australia. April 16, 1935, No. 14983/36. Convention date, April 21, 1934. Divided out of 456,896, [Group XVI]. [Classes 145 (i) and 145 (ii)] [See also Groups XVI and VIII] Apparatus for pressing together parts of wood or similar material, such as door sections, wood plies, veneers and the like, for the purpose of cementing them together or for making one part conform to the shape of another, comprises a casing adapted to be connected to vacuum producing means, the casing being airtight except for the top which is extensively perforated and constitutes a flat table, a ribbed or grooved base-plate which is disposed on the table to receive the parts to be pressed together, and a resilient moulding member or bag which is adapted to be placed over the table base-plate and parts thereon and to forcibly engage with and conform to the shape of these parts under the action of vacuum acting through the perforated table. The perforated table 50 forms the top face of a casing 51 and has a ribbed base plate 54 mounted thereon, upon which is supported the wood sections or other parts to be united or shaped. A hinged frame 57 supports the resilient moulding member or bag 58, which is similar in construction to the moulding member described in Specification 456,896, which is referred to, and a hinged cover 61 is provided carrying an electric heater. A cross-head 63 carrying a flat pressure member 64 and operated by pistons 65 may be provided, and two spaced cramps 67 may apply pressure to the abutting ends of wooden sections which are to be united, the cramps being moved inwardly by pistons 69. Vacuum storage compartments 59 and a combined vacuum and compressed air pump 71 suitably connected by valve-controlled pipes with the compartments 51, 59, and the cylinders 66, 70 for operating the pistons 65, 69, are provided. In operation, the previously glued wooden sections &c. are supported on the base-plate 54, the resilient member 58 is arranged thereover, and pressure is applied by placing the chamber 51 in communication with the vacuum storage compartments 59, after which the pump 71 is started to apply an increased pressure to the glued wooden members to be united while the cover 61 is closed so that the electric heater may maintain the glue in a fluid condition. The resilient member 58 conforms, under the action of the suction applied thereto, to the shape of the wooden sections and applies an intense and uniform pressure, which may be increased by means of the top and side pressure members 64, 67. One wooden board may be moulded to the shape of another by arranging the second board around the first, supporting the two on the base-plate 54 and arranging the resilient member 58 thereover so that, upon the application of suction, the resilient member presses the second member to the shape of the first.