baber/WOPTO huggingface dataset:
Patent GB-999868-A (GB)
IPC: C08L27/06
Filed: 1964-04-17
Abstract: A process of making a gas permeable film comprises providing a substantially uniform mixture of a film forming material containing a particulate thermoplastic material incompatible therewith and having a melting point which is lower than the fusion temperature of the base material, the incompatible material in the mixture having a bulk density less than its actual density, forming a film of the material and melting the incompatible material.  The incompatible material melts to form a mass of base material containing interconnecting voids, each void containing a particle of incompatible material. Suitable film forming materials are thermoplastic resins especially polymers and copolymers of vinyl chloride. Heat sensitive latex may also be used.  The preferred particulate material is polyethylene, but waxed and polypropylene are also mentioned. Articles made from the films include simulated leather sheets for use in upholstery and moulded film boots.ALSO:A composition suitable for preparing boots which are capable of transpiring moisture is introduced into a hollow boot mould, the mould is closed and rotated in two planes while heating, cooled, opened and the boot removed.  The specific composition is a plastisol of polyvinyl chloride in a dicapryl phthalate plasticizer in which is dispersed powdered polyethylene. During the heating cycle the vinyl plastisol first gels, the polyethylene powder then melts to create small voids and finally the plastisol is completely fused.  Other thermoplastic resins or heat sensitive latex may be used in place of polyvinyl chloride and the powdered polyethylene may be replaced by any particulate thermoplastic material incompatible with the boot film forming material and having a melting point which is lower than the fusion temperature of the boot film forming material.
Patent GB-819835-A (GB)
Title: Process for the production of monopentachlorophenyl ethers of trihydric alcohols or their acetals or ketals
Filed: 1957-05-21
Abstract: Mono-pentachlorophenyl ethers of trihydric alcohols or their acetals or ketals, are prepared by reacting an acetal or ketal of a trihydric alcohol with hexachlorobenzene in the presence of an acid-binding agent and either isolating the ether of the acetal or ketal of the trihydric alcohol or hydrolysing the ether to the monopentachlorophenyl ether of the free trihydric alcohol.  In a preferred form the reaction may be carried out continuously by acetalizing or ketalizing the trihydric alcohol in a known manner by heating it with an acetal or ketal of the mono-pentachlorophenyl ether obtained from the same trihydric alcohol, separating the mono-pentachlorophenyl ether of the trihydric alcohol from the acetal or ketal of the trihydric alcohol, reacting the latter with hexachlorobenzene in the presence of an acid-binding agent to give the acetal or ketal ether, heating again with the same trihydric alcohol and continuing the reactions in this manner.  The acetals or ketals used may be formed from such alcohols as glycerol, trimethylol ethane, trimethylol propane or trimethylol butane using aldehydes or ketones such as formaldehyde, acetaldehyde, benzaldehyde, acetone, methyl ethyl ketone or cyclohexanone.  The reaction of the acetal or ketal with hexachlorobenzene may take place in the presence of a metal hydroxide and a solvent such as benzene, toluene or xylene at the boiling point of the solvent so that the water of reaction is azeotropically distilled off.  The acetal or ketal ether may be hydrolysed to the ether of the free alcohol by treating with steam in the presence of small quantities of acid. The continuous process may be carried out by heating the acetal or ketal ether with the trihydric alcohol at 120 DEG  to 200 DEG  C. in the presence of an acidic catalyst including highly dispersed substances such as alumina and acid forms of ion exchange resins using an inert diluent, if desired.  In the examples: (1) 2,2-pentamethylene-5-ethyl-5-methylol-1,3-dioxan is heated with C6Cl6 and KOH and the resulting ketal ether hydrolysed with steam and acid to trimethylolpropane mono-pentachlorophenyl ether; (2) 2,2 - dimethyl - 5 - ethyl - 5 - pentachlorophenoxymethyl - 1,3 - dioxan is heated with trimethylol propane in the presence of H3PO4, 2,2 - dimethyl - 5 - ethyl - 5 - methylol - 1,3 - dioxan is distilled out and is reacted with C6Cl6 in the presence of NaOH and the residue is then distilled under high vacuum to give trimethylolpropane monopentachlorophenyl ether; (3) 2,2 - dimethyl - 5 - pentachlorophenoxymethyl-1,3-dioxolan is heated with glycerol in the presence of highly dispersed alumina (pH 2-3), 2,2 - dimethyl - 5 - methylol - 1,3 - dioxolan is distilled out and reacted with C6Cl6 in the presence of KOH and the residue distilled to give glycerol monopentachlorophenyl ether.
Patent GB-515519-A (GB)
Title: Improvements in or relating to screw presses
IPC: B30B1/18
Filed: 1938-05-31
Abstract: 515,519. Mechanical presses. WALTERS, B. May 31, 1938. No. 16200. [Class 87 (ii)] [Also in Group XXII] In screw presses, an hydraulic loadtransmitting coupling is interposed between the screw and nut mechanism and the plunger or ram of the press. As shown, the screw 9 of a press for flattening armour plate passes through a ball-bearing collar 12, secured to the platen 5 and has a ball end 10 in engagement with a stepped plunger 11, movable in cylindrical liners 6, 7 in the platen. The plunger is urged upwardly by springs to cause liquid, such as heavy oil, to pass through a non- return valve 19 into the lower part of the cylinder. When the screw forces the plunger downwardly, oil is forced through inclined openings 18 and passes to the upper part of the cylinder through ducts to a reservoir 25. When the screw ceases to rotate, leakage of oil past the piston causes the pressure transmitted to the platen to be reduced to zero, so that the moment of friction of the screw is so reduced that the screw can be retracted without great effort.
Patent GB-642125-A (GB)
Title: Blast-preheater
IPC: C21B5/00
Filed: 1947-06-20
Abstract: 642,125. Heating air for furnaces. BILLGREN, R. June 20, 1947, No. 16325. Convention date. Feb. 1, 1946. Drawings to Specification. [Class 64(i)] '[Also in Group XI] Blast air for a metallurgical or other furnace is heated in two stages, first to 400- 600‹ C, e.g. in a tubular recuperator, and then to a higher temperature, e.g. 800 -900‹ C, in a high tension electric arc. The electric are may be produced in a separate air-heating furnace or in the tuyeres supplying the blast to the furnace (see Group XI).
Patent GB-944743-A (GB)
Title: An improved conveyor device
IPC: B65G13/073
Filed: 1962-04-30
Abstract: 944,743. Rollerway conveyers. GEMAG GERATE-UND MASCHINENBAU A.G. & CO. April 30, 1962 [April 28, 1961], No. 16327/62. Heading B8A. Pallets 1 and 2, Fig. 1, are conveyed along rollerway 50 upon rollers 1. Each roller, Fig. 3, is provided with a collar 1a which carries pawl 7 engaging the inside ratchet of sprocket 6. The sprockets 6 are driven by chain 3 driven by a motor 4 or alternatively are braked. The effect of the ratchet wheels is to limit the velocity of a roller and therefore of a pallet to that of the chain, whilst permitting a pallet to remain stationary despite the continuous movement of the chain. Second embodiment, Fig. 4. Additional rollers 1 are provided, which are without ratchet wheels but are connected together by a belt 9 so as to move in unison. A brake 13 is provided having end 12a engageable by the end pallet. In operation, the pallet 10 is stopped by the fixed projection shown, whilst the brake 13 is operated by the weight of pallet 10 to cause all three rollers 1 to be braked and thus to hold up the pallet 11. when pallet 10 is discharged by means of a fork truck the pallet is still in engagement with brake end 12a for a slight period after the pallet has left the rollers 1. The effect of this is to hold up pallet 11 till pallet 10 is well clear of the rollerway.
Patent GB-272962-A (GB)
Title: Improvements in or relating to helicopter flying machines
IPC: B64C27/10
Filed: 1927-06-20
Abstract: 272,962. Zaschka, E. June 18, 1926, [Convention date]. Helicopters; steering and balancing. - The stability of a helicopter is maintained by a rotating mass or gyroscope geared to a lifting screw to rotate in the same or opposite direction and at the same or a greater speed. The blades of the screw are reversible in incidence to enable the screw to drive the gyroscope during a descent after engine failure, the momentum of the gyroscope being utilized to check the descent at landing by again reversing the incidence of the blades. A propeller for forward propulsion is provided which also is adapted to be clutched to the gyroscope. This propeller may be swivelled from side to side for steering, or brakes selectively applied to oppositely rotating parts of the lifting screw and gyroscope may be provided for this purpose. The gyroscope itself may be formed as a lifting screw.
Patent GB-624252-A (GB)
Title: Improvements relating to the production of nickel coatings on ferrous articles
IPC: C23C10/28
Filed: 1947-06-20
Abstract: The process of the parent Specification is modified by heating the coated article in the non-oxidizing atmosphere for at least four hours, and preferably for 48 hours, within the temperature range 1350 DEG F. to 1500 DEG F., so causing an iron-nickel alloy surface to form by diffusion.
Patent GB-457664-A (GB)
Title: Improvements in and relating to universal joints
IPC: F16D3/46
Filed: 1935-06-05
Abstract: 457,664. Universal joints. MOLLART, A. J., and HENDRA, J. C., c/o Mollart Engineering Co., Thames Ditton, Surrey. June 5, 1935, No. 16390. [Class 80 (ii)] Ball or like bearings 21 are arranged between the grooves 2, 3 in the solid ball-member 1, and the sides of the splines 6 on the divided fork-members 5, in joints such as those described in Specifications 418,541 and 434,834. The balls are carried in perforated cages 22, which have dovetailed or other interattachment at 23. The sides of the splines 6 are grooved to form raceways, and, together with the sides of the ballgrooves, may be radially inclined. In place of balls, rollers, tapered or needle, or hemispheres may be used.
Patent GB-575772-A (GB)
Title: Improvements in or relating to pipe joints or couplings
IPC: F16L27/10
Filed: 1942-11-20
Abstract: 575,772. Pipe joints. STEVENS, A. H. (Chicago Forging & Manufacturing Co.). Nov. 20, 1942, No. 16449. [Class 99 (i)] In a joint in which a flexible packing ring 6 is compressed around a pipe by a coupling nut 3 having a tapered bore allowing angular movement of the pipe, the packing ring is held on the pipe by a ferrule 7 which is secured to the pipe by deformation and has a rib 8 which is embedded in the packing and is of larger diameter than the bore of the coupling nut at its narrowest. In connecting a plurality of pipes to a plate or header the packing is compressed by a common pressure means. Specifications 551,006, and 575,774, [Group XXII], are referred to. Reference has been directed by the Comptroller to Specification 528,965.
Patent GB-883991-A (GB)
Title: Improvements in wheel assemblies for trolleys, trucks and the like
Inventor: BUSH FREDERICK JOHN
IPC: B60B37/10
Filed: 1957-05-24
Abstract: 883,991. Trolley wheels. BUSH & SONS Ltd., F. July 9, 1958 [May 24, 1957], No. 16515/57. Class 144 (1). [Also in Group XIV] A trolley or truck wheel assembly designed to eliminate the picking up of fibrous wheelclogging material comprises a supporting arm 6 directly against one surface of which is clamped, by means of a screw 11 and a nut 13, a cylinder 10 on which the wheel body is supported for rotation between the said arm and a radially extending member such as the washer 14 or an integral flange on the cylinder. The cylinder may be solid and have an extension, of smaller diameter than its wheel-supporting part, screwthreaded to replace the screw 11. The wheel sides may incorporate fibre-deflecting lugs 16 and the body 5, which may be solid metal or comprise a rubber or like annulus fixed as shown to a metal bush 8, may rotate on a self-oiling bush 9 between itself and the cylinder 10.
Patent GB-334546-A (GB)
Title: Motor vehicle with low chassis and motor fore-carriage
IPC: B62D47/00
Filed: 1929-05-29
Abstract: 334,546. Rumpler, E. May 29, 1929. Frame Constructions.-The longitudinals of the chassis 9, which is built in as an integral part of the body B, are extended forwardly under, and connected to, the front axle, upon which the propelling parts are mounted, forming a readily detachable forecarriage. The rear wheels 11 are mounted independently upon tubular arms 12 which rock about a transverse shaft 12<a>.
Patent GB-111166-A (GB)
Title: A New or Improved Process and Apparatus for Drying Clay and other Substances or Articles.
Inventor: SECORD FREDERICK AVARD
IPC: F26B21/06
Filed: 1916-11-18
Abstract: 111,166. Secord, F. A. Nov. 18, 1916. Drying-kilns; brick kilns; charges, cooling.- Relates to a process for drying clay-articles &c. by first cooling and then heating bv air currents. The process is carried out in a series of drying chambers 7, 8, 9, and after the drying is completed the materials or articles are transferred from the chamber 9 through an enclosed passage 19 to the kiln 18 in which they are baked. The kiln is surrounded by a casing 73 and is provided with a series of fire-grates one of which is shown at 74. The kiln and its casing may be heated by the hot air used in the drying process by admitting it through the pipes 42, 50, 75, and after the baking the charge may be cooled by passing cold air from a chamber 28 connected to a refrigerator 21 :hrough the pipes 42, 50, 76 to the kiln and its casing. Hot air from the furnace may be utilised for drying by passing it through the pipes in a reverse direction. A pipe 67 serves for the admission of brine and ammonia to the kiln.
Patent GB-1130284-A (GB)
Title: Glass bead compositions
Inventor: SPROUL JAMES DUANE
IPC: C03C3/089
Filed: 1967-04-11
Abstract: 1,130,284. Glass bead compositions. GENERAL STEEL INDUSTRIES Inc., [trading as FLEX-O-LITE DIVISION]. 11 April, 1967, No. 16624/67. Heading C1M. A glass bead composition has a refractive index of above 2À0 and consists essentially in percentages by weight of PbO 48-65; TiO 2  19-41; alkaline earth oxides, preferably BaO, 0-8; B 2 O 3  0-5; ZrO 2  3À8-13, the composition containing boric oxide and/or an alkaline earth oxide. A number of examples are given, with colours ranging from light yellow to dark brown. The beads may be in sizes ranging from 325 mesh up to 20 mesh and are made by conventional methods as disclosed in the following U.S.A. Specifications 3,150,947; 3,148,045; 2,965,921; 2,838,408; 2,790,723; 2,600,963; 2,334,678; 1,174,224.
Patent GB-1385772-A (GB)
Title: Hoist clamps
IPC: B66C1/48
Filed: 1972-04-11
Abstract: 1385772 Hoist clamps INTERPRODUCT NV 11 April 1972 [19 April 1971 1 Feb 1972] 16705/72 Heading B8H [Also in Division E2] A hoist clamp for clamping a plate 11 comprises a toggle lever system 2, 4 pivotally coupled at a pin 3, the lever 2 being pivotally connected to a hoisting eye 7 by means of a pin 6 movable in a slot formed in the side of the clamp, the lever 4 bearing a channel member 40 having a web 39 between which and a wedge 13 the plate 11 is clamped. In the position of the clamp in Fig. 1 in which the plate 11 is clamped a locking mechanism comprising locking members 29, 30 is inoperative, but in the inoperative position of the clamp shown in Fig. 3 the said locking members 29, 30 are operative to hold the clamp in its open condition. The members 29, 30 are movable anti-clockwise from their positions shown in Fig. 3 to that of Fig. 1 by means of a handle 35 connected to a shaft 28 on which the members 29, 30 are mounted, the member 29 engaging a curved surface 37 of the lever 2 and the member 30 engaging a surface part 38 of a lever 25 which is pivotally mounted on a stationary shaft 26, a slot 24 in the lever 25 receiving a pin 23 mounted at the top of the wedge 13. In operation of the clamp to grip the plate 11 the lock members 29, 30 are rotated anti-clockwise and the member 30 disengages from the lever 25 while the member 29 remains in engagement with the lever 2, Fig. 4 (not shown). In this position a spring 21 urges the wedge 13 towards the members 9, 40, and then by further rotation of the handle 35 the member 29 becomes disengaged from the lever 2 of the toggle system whereupon on upward movement of the hoisting eye 7 the wedge 13 co-operates with a stationary block 15 so that the plate 11 is fully clamped between the wedge 13 and the channel member 40. The wedge 13 is formed with a toothed face 14 which, in the position of Fig. 1, engages with a complementary toothed face 16 of the stationary block 15. In the inoperative condition of the clamp shown in Fig. 3 the toothed faces are pressed away from each other by means of a pair of compression springs 18.
Patent GB-499266-A (GB)
Title: Improved cathode ray tubes and method of manufacturing such tubes
IPC: H01J29/28
Filed: 1938-06-03
Abstract: 499,266. Electrode materials. NAAM. LOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 3, 1938, No. 16761. Convention date, June 7, 1937. [Class 39 (i)] [Also in Group XX] A cathode-ray tube has a fluorescent screen provided with an adsorbed layer of caesium oxide which emits secondary electrons to prevent a negative charge from the primary electrons accumulating on the screen. The fluorescent substance may be zinc silicate provided with a binder such as nitro-cellulose. The nitro-cellulose is subsequently burnt away and the zinc silicate gently sintered. The caesium oxide may be obtained from capsules inside the tube, one containing caesium or a mixture of caesium chromate and zirconium for producing caesium, and the other containing a compound, such as manganese dioxide, which evolves oxygen at a temperature exceeding the pumping temperature of the tube. The cathode is preferably activated after removal of free oxygen to prevent it being attacked thereby.
Patent GB-635016-A (GB)
Title: Electric motor control system
IPC: B60L15/04
Filed: 1947-06-25
Abstract: 635,016. Control of D.C. motors. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. June 25, 1947, No. 16785. Convention date, June 26, 1946. [Class 38 (iii)] A control system comprises four electric motors or four groups of motors, said motors or groups of motors are connected in a number of combinations, and the transitions between all those combinations are effected by the bridge method, the grouping of the motors, contactors, resistances, and all other circuitelements being such that the parallel circuits which are successively formed have practically identical structural and operative features, whereby a correct and balanced current-distribution is obtained, this current-distribution being substantially improved by additional starting resistances and by current-distributing resistances connected so as to equilibrate the currents flowing in parallel circuits and current-elements. Four motors I to IV, Fig. 3, are initially connected in series by closing contactors A, B, G and G1. Starting resistors 1 to 4 are then gradually removed. The closure of contactor D eliminates additional starting resistors 5 and 6. A first bridge transition, Fig. 4, is effected by opening contactor B and closing contactors E and El. The opening of contactor D provides the seriesparallel connection. Contactors F1, F2, Fll and F12 are then closed to short-circuit resistors 5 and 6. A second bridge transition, Fig. 5, is effected by closure of contactors H, H1, I and 11, after which the bridge-circuits are interrupted by opening contactors G and G1. The parallel motor-connection, Fig. 6, is then obtained. Resistors M, N, P and Q, the ohmic value of which is of the same order as that of a closed contactor, are connected in the circuit to provide a satisfactory currentdistribution. Resistors 5 and 6 complete the balancing-action. Relays C1, C2 and C3 adjust the resistances during the transition periods and interrupt the bridge connections at the appropriate times: Specification 635,026 is referred to.
Patent GB-286532-A (GB)
Title: Improvements in ottomans, settees, underbed wardrobes and the like
IPC: A47C17/04
Filed: 1927-06-24
Abstract: 286,532. Joseph, J. June 24, 1927. Garment racks.-An article of furniture which includes a box for storage purposes, such as an ottoman, settee, or underbed wardrobe is provided with a garment-hanging device comprising an arm 4, to receive garment hangers, secured at one end to the underside of the hinged lid 1 of the ottoman &c., and pivoted at its other end to a tray-like member 6 having at its free end rollers 7 which engage the bottom of the ottoman &c. The side members of the tray 6 may be provided with hinged fabric-covered wire frames 12 which engage the sides of the ottoman &c. when the device is being stored, and are thereby rotated so that any projecting parts of the garments will be moved into the tray. In a modification the arm 4, instead of being secured to the lid, is secured to a hinged board within the ottoman &c.
Patent GB-1487490-A (GB)
Title: System for unloading washing and draining a cargo tank
IPC: B63B57/02
Filed: 1975-04-23
Abstract: 1487490 Cleaning tanks JONKOPINGS MEKANISKA WERKSTADS AB 23 April 1975 [26 April 1974] 16856/75 Heading A4F [Also in Division F1] A system comprising a cargo tank is provided with means for unloading and draining cargo and/or washing liquid, cleaning the tank, wash-draining, after-draining, and refining the used washing liquid, and including a main pump 12 connected by a suction pipe 2 to the cargo tank 1 for emptying it through a pressure pipe 13, and e.g. pipe 15, the inlet of the pump 12 being also connected to a washing liquid source, e.g. a sea water inlet 17, spray apparatus 21 in the tank 1 connected to the pressure pipe 13, and a drainage pump 35 for wash-draining and/or after-draining in communication with the suction pipe 2 via a separator tank 5 in which air and/or other gas is removed by suction, e.g. applied by a suction pump (8) Fig. 3 (not shown). The system illustrated in Fig. 9 has a plurality of oil tanks 1 each associated with a main pump 12 and a drainage pump 35 driven by a turbine 37. For unloading and after-draining the oil, various valves in the pipe system are set to produce the flows, indicated in Fig. 9, the complete arrows designating the flow of oil being unloaded or utilized to drive the turbines 37, and the dashed arrows designating the flow of oil being after-drained and fed to a separation tank 27. The turbines 37 may alternatively be driven by a flow of ballast water being fed into the tanks 1. For wash-draining, the outlets of the drainage pumps 35 are connected via pipes (78) Fig. 11 (not shown) to the sea suction pipe 16, or via pipes (80) Fig. 12 (not shown) to the suction pipe 2, and sea water is sprayed into the tanks 1 via the sprayers 21. Wash-draining may also be effected during unloading of the oil by spraying part of the oil through the sprayers 21.