baber/WOPTO huggingface dataset:
Patent GB-707916-A (GB)
Title: Film-forming and drying composition
IPC: C09D101/08
Filed: 1951-09-11
Abstract: A cellulose derivative having from 0.2 to 0.8 free hydroxyl groups per glucose unit is dissolved together with an alkyl titanate in a volatile "two-type" solvent containing a monohydric alcohol.  The term "two-type" solvent is applied to solvents capable of dissolving both the cellulose derivative and the alkyl titanate.  It may be a single compound containing an alcohol group or a mixture of two or more solvents, one of which is a monohydric alcohol.  Solvents specified in the examples are (1) xylene and ethyl lactate, (2) ethyl acetate and butanol, (3) benzene and ethylene glycol mono-ethyl ether, (4) ethyl lactate, (5) tetrachlorethane and amyl alcohol and (6) tetrachlorethane and butanol.  The alkyl titanates used are the ortho esters of titanic acid, preferably those derived from alcohols containing from 1 to 12 carbon atoms in the alkyl group.  The term "alkyl titanate" also includes partially hydrolysed condensation products of these esters in which up to 3 of the 4 alkoxy groups have been hydrolysed.  Preferably the cellulose derivative contains from 0.4 to 0.6 free hydroxyl groups per glucose unit.  Specified cellulose derivatives include nitrocellulose, cellulose acetate, propionate, butyrate, aceto-stearate, acetomalate and nitro-acetate, and ethyl, butyl and benzyl celluloses.  It is preferred to dissolve the cellulose derivative in the solvent and then to add the alkyl titanate.  The compositions may contain from 0.1 to 9.0 parts by weight (preferably from 0.2 to 2.0 parts) of cellulose derivative for each part by weight of alkyl titanate.  Opacifying agents such as titanium dioxide, zinc oxide, lithopone and white lead may also be incorporated in the compositions.  In typical examples (all parts by weight) (1) 9 parts of ethyl cellulose of viscosity 10 centipoises and containing 2.6 ethoxyl groups per anhydroglucose unit are dissolved in 59 parts of xylene and 25 parts of ethyl lactate, and when solution is complete 7 parts of butyl titanate are added; (6) 5 parts of ethyl cellulose of viscosity 50 centipoises and containing 2.5 ethoxyl groups per anhydroglucose unit are dissolved in 72 parts of tetrachloroethane and 18 parts of butanol, and 5 parts of partially hydrolysed butyl titanate are added.  Organo-titanium polymers.  The partially hydrolysed butyl titanate used in example 6 is prepared by adding a molar solution of water in butanol to a solution of butyl titanate in butanol, and refluxing the mixture. The solvent is removed under vacuum to give a white resinous solid. Example 7 describes the preparation of a hydrolysed condensation product from isopropyl titanate.
Patent GB-959928-A (GB)
Title: Apparatus for the manufacture of wafer sandwiches
Inventor: SCARPA ERIC WALTER
IPC: A21B5/02
Filed: 1962-06-04
Abstract: 959,928. Bakery plant; making wafer sandwiches. BAKER PERKINS Ltd. May 20, 1963 [June 4, 1962], No. 21530/62. Heading A2A. Wafer sandwich making apparatus comprises three creaming conveyer systems 10A, 10B, 10C, Fig. 1, each of which conveys wafers 14 in succession from a baking oven 11, Fig. 2, to pass beneath a creamer 12 and to a depositor 13. The creamer 12 of system 10A is omitted or rendered inoperative so that this system delivers dry wafers 14<SP>1</SP>. Each of the ovens, which may be of the construction described in Specification 702,563, delivers wafers down a shoot 9 to a cooling conveyer 15 constituted by parallel chains 16 carrying upstanding rods 17 defining pockets 18 for accommodating the wafers on edge. The rods 17 pass through slots in a plate 19 and deliver the wafers to a conveyer 22 having an associated pivoted gate 23 which is alternately raised and lowered to determine the spacing of the wafers as they pass to a slower conveyer 27 on which they travel in abutment beneath the creamer 12. The wafers then pass on to a faster V belt conveyer 28 having a gate 29 similar to the gate 23 for determining the spacing at which the sheets are delivered to a depositing grid 30. The sandwiching conveyer 31 which passes at right angles beneath the grids 30 comprises chains 32 carrying flights 33 and is fed with creamed wafers by periodic tilting of the grids 30, Fig. 4, the wafers sliding down shoots 45 constituted by spaced rods 47 between which the flights 33 pass to rake off the wafers. Creamed wafers from system 10C deposited at uniform spacing on to the conveyer 31 have creamed wafers from system 10B superposed on them and a dry wafer deposited from system 10A completes the sandwich. Side guides 38 align the wafers and sandwiches as they are carried forward to a pressure roll unit, a cooling unit and a cutting unit (none shown).
Patent GB-746812-A (GB)
Title: Improvements relating to a brake assembly
Inventor: MURPHY JOHN HARRY
IPC: F16D53/00
Filed: 1954-07-23
Abstract: 746,812. Drum brakes. DETROIT DUOGRIP BRAKE CORPORATION. July 23, 1954, No. 21546/54. Class 103 (1). In a brake assembly comprising a brake drum having a peripheral flange, internal and external brake shoes are mounted on opposite sides of the flange on support means so as to be adapted for movement into and out of engagement with the drum by rotatable means which, when rotated, forces the internal and external brake shoes towards each other and into frictional engagement with the drum. In the embodiment illustrated, an inner brake shoe 20 is pivoted on a pin 18 housed in a hinge 16 pivoted on a pin 14 mounted in a bracket 12 of a flange 11 which is fixed to the vehicle frame and which carries the brake assembly. The inner brake shoe 20 carries a friction lining 22 and is adapted to engage the inner surface of the flange 101 of a brake drum 10. Adapted to engage the outer surface of the flange 101 of the brake drum 10 is an outer brake shoe 24 carrying a friction lining 26 and pivoted similarly on a pin 18 housed in a hinge 17 pivoted on a pin -14 mounted in a bracket 13 of the flange 11. The brake shoes are brought into contact with the brake drum flange 10<SP>1</SP> by applying a rotative force to a splined shaft 39 (see Fig. 2, which is a section at 2 - 2 of Fig, 1). This force is transmitted through a U-shaped yoke member 30 to rollers 36 which move toward the brake shoes 20 and 24 as the shaft 39 is rotated and the outer roller 36 rolls on a cam-shaped hardened pad 38 and the inner roller 36 rolls on a hardened pad 37 of uniform cross-section so that an even braking pressure is provided on both the inner and outer shoes 20 and 24 respectively as the rollers 36 are moved along their respective paths of travel. The splined shaft 39, which is integral with the yoke 30, is mounted in a resilient bearing so as to ensure that the yoke may align itself with the flange 10<SP>1</SP> of the brake drum 10. By locating the hinge brackets 12, and 13 in the positions shown, self-energization of the shoes is effected when the drum is rotating in the forward direction indicated by the arrow in Fig. 1.
Patent GB-1504414-A (GB)
Title: Dual channel infrared intrusion alarm system
IPC: G08B13/18
Filed: 1975-05-20
Abstract: 1504414 Infra-red sensitive intruder alarm OPTICAL COATING LABORATORY Inc 20 May 1975 [24 June 1974] 21575/75 Heading G1A [Also in Division G4] In an intruder alarm system two detectors 47, 48 responsive to infrared energy from the body of an intruder are arranged to provide signals of opposite polarity when an intruder enters the field, the signals being applied to respective amplifiers 63, 66 whose outputs are applied to level detectors 64, 67, an output gate 68 only responding when predetermined levels are exceeded and signals of opposite polarity appear simultaneously at the outputs of detectors 64, 67. Thereby, disturbances, such as component noise, which affect only one channel cannot give rise to an alarm, nor do power supply disturbances which produce signals of the same polarity in both channels. As shown, the detectors 47, 48 are in the form of flakes of thermistor material mounted in the hub 37 of a support 36 which is arranged in a housing 11 with a mirror assembly 16 forward of a plurality of spherical mirror segments so that infrared energy collected by the segments is focussed on to the detectors 47, 48. A filter 59 passing a particular infrared range is mounted in front of the detectors 47, 48. The electrical circuitry is arranged in a module 69 in the housing 11. The detectors have a resistance which varies inversely with temperature and are connected in series with respective resistors 61, 62 as shown in Fig. 4 so as to provide the signals of opposite polarity. The tuned amplifiers 63, 66 are described with reference to Fig. 5 (not shown) and each includes a source follower input stage and a pair of tuned amplifiers which act as an active band pass filter having a pass band of 0.2 to 2Hz. This provides discrimination between changes in the level of  infrared produced by an intruder and gradual changes such as room or ambient temperature changes. The level detectors 64, 67 and gate 68 are described with reference to Fig. 6 (not shown).
Patent GB-1337078-A (GB)
Title: Process for isolating peptidase inhibitor
IPC: C07K14/81
Filed: 1971-04-19
Abstract: 1337078 Separating peptidase inhibitor PENTAPHARM AG 19 April 1971 [11 Feb 1970] 21637/71 Heading C3H Peptidase inhibitor (kallicrein inactivator or protease inhibitor) is obtained from animal organs or extracts thereof by treatment with an ester of general formula wherein R 1  is a hydrocarbon radical of at least 2 C atoms and R 2  is the same or H. A complex is formed which precipitates from aqueous solution or which is retained in solution in alkanols and which may be decomposed by treatment with a mineral acid, an alkaline earth metal salt or an alkanol-soluble inorganic base
Patent GB-1061573-A (GB)
Title: A process for the formation by casting of a non abrasive and heat resistant surface on bodies having high thermal conductivity
IPC: B22D/
Filed: 1964-05-26
Abstract: A method of forming a non-abrasive heat resistant metal layer on a cast body in which the layer is metal sprayed on to a core, which is positioned in a mould, and is transferred from the core to the article cast in the mould when the core is removed after casting. The cast metal is of Aluminium or Al-alloy including various proportions of Si, Mg, Cu, Mn and Fe.  The non-abrasive metal layer may be of various steels such as Chrome steel, High Carbon Steel, Nickel-Chrome-Manganese Steel or Molybdenum Steel which may include other ingredients such as Carbon, Phosphorous, Sulphur and iron. Specific compositions are given in tables 3 and 4 (not shown).
Patent GB-1016455-A (GB)
Title: Improvements in and relating to injection moulding,pressing or blowing machines
IPC: B29C45/76
Filed: 1963-05-31
Abstract: 1,016,455. Controlling moulding machines. W. BATTENFELD. May 31, 1963 [June 1, 1962], No. 21849/63. Heading B5A. An automatic injection, compression or blow-moulding machine is controlled by two time switches, one for controlling the production time and the other the stationary time of the machine, and each switch stops the machine if the time set thereon is reached, but returns to the starting point when this time is not reached. The invention is described as applied to an injection moulding machine having means for closing the mould, injecting plastic material, and heating and cooling means. When the machine is stopped the operator is warned visually, audibly or by telephone.
Patent GB-891730-A (GB)
Title: An improved method of filtration
Inventor: BERGER OTTO
IPC: B01D37/00
Filed: 1959-06-25
Abstract: Sawdust or other fibrous waste product is added in dry form to sewage sludge before feeding it into a rotary filter.  The proportion may be 25% of the solids content.  Alternative waste: cane sugar dust, wood chips, asbestos fibre, jute dust. Specification 891,729 is referred to.
Patent GB-229591-A (GB)
Title: Improvements in and relating to radius rod mountings for motor vehicles
IPC: B60G7/00
Filed: 1924-09-16
Abstract: 229,591. Grizzard, H. E. Sept. 16, 1924. Radius rods.-Relates to a method of securing a radius rod and perch or spring hanger to the axle of a vehicle with transverse front spring. The end of the radius rod 2 is enlarged at 4 and provided with a channel 6 to take the axle 7. The perch 13 is provided with a spring hanger 14 and an enlarged lower end 10 having a similar channel to take over the axle, and the axle, radius rod and perch are clamped together by a bolt 11 with conical end 12.
Patent GB-1176464-A (GB)
Title: Improvements in Platform Weighing Machines
Inventor: FLUESTER JAMES FREDERICK
IPC: G01G19/46
Filed: 1966-03-25
Abstract: 1,176,464. Weighing machines. HOLLANDS & BLAIR Ltd. March 23, 1967 [March 25, 1966; May 17, 1966], Nos.13397/66 and 21907/66. Heading G1W. In a platform weighing machine of the "bathroom" scales style and including a base or housing carrying weighing mechanism having pivoted levers which move down when a load is placed on a platform above the base or housing against the action of a coiled spring, the movement being translated into a weight indication on a dial or the like, the levers include a pair 11 arranged substantially V-wise, and one end of the spring 12 is mounted and rigid member 17 separate from the lever ends, which ends co-operate only through bearings with the member 17, and the upper end of the spring 12 is supported on a pillar 15 thereby ensuring that upon movement of the levers 11 the axis of the spring movement is substantially undisturbed. Alternative bearing supports for the lever ends are described.
Patent GB-359053-A (GB)
Title: Sealing fluids for gas holders
IPC: C09K3/10
Filed: 1930-07-19
Abstract: 359,053. Cooling-mixtures. KOPPERS CO., Koppers Building, Pittsburg, U.S.A.- (Assignees of Sperr, F. W. ; Koppers Building, and Laue, K. E. E. ; Flannery Building, both in Pittsburg, U.S.A.) July 19, 1930, No. 21911. Convention date, Oct. 2, 1929. [Class 29.] The sealing fluid used in gas holders of the disc closure type consists of a predominantly aqueous viscous solution having a low freezing point and stable at low temperatures made from inorganic or organic materials, which may be hygroscopic in character. Suitable materials are calcium chloride, calcium thiocyanate, sodium silicate, sodium thiosulphate, mixtures of calcium chloride and magnesium nitrate, sodium thiocyanate and sodium thiosulphate, sodium thiocyanate and calcium nitrate, waste sulphite liquors obtained in the cellulose industry or substances obtained from the waste sulphite liquors such as " glutrin," " goulac," and " super-spruce." Organic materials such as sugar and glycerine and corrosion inhibitors such as formaldehyde and sodium dichromate may be added to the solution. Other salts such as sodium chloride may be added to reduce the freezing point and the solution, if acid, is neutralized by alkaline material such as lime.
Patent GB-646002-A (GB)
Title: Metallurgical processes for producing materials or articles of platinum or allied metals, or their alloys, and materials or articles made by or from the products of such processes
Inventor: SMITHELLS COLIN JAMES
IPC: C22C5/00
Filed: 1944-11-08
Abstract: A metallurgical process consists in agglomerating by pressing and sintering metals of the platinum class with or without alloying ingredients, in amounts yielding cold-working alloys with one or more of the following oxides, namely, those of lanthanum, neodymium, samarium, praseodymium, scandium, yttrium, terbium, gadolinium, europium, dysprosium, holmium, erbium, thulium, ytterbium and lutecium, the quantity of which oxide or oxides is not greater than 10 per cent by weight of the metal, all the ingredients being in a finely divided condition, the sintered body being subsequently swaged, rolled, drawn or otherwise treated to bring it into the form of a wire or sheet suitable for use in the production of desired articles.  The specified oxides may be partly replaced by one or more other oxides which are stable at the sintering temperature whether or not the sintering is carried out in the presence of hydrogen or other reducing gas, the major portion of the total oxide content being the one or more oxides above specified.  The agglomerate may consist mainly of platinum alloyed with rhodium, palladium, iridium, ruthenium or tungsten, e.g. 5-30 per cent of rhodium, the proportion of oxide being 0.01-1.0 per cent of the weight of the metal, or tungsten in the range of 1-8 per cent of the platinum and about 0.2 per cent of oxide.  One of the following binary alloys may be used in the agglomerate, namely, platinum alloyed with rhodium, iridium or palladium up to 30 per cent of the alloy, or ruthenium, gold, cobalt or nickel up to 15 per cent, or molybdenum, manganese or tungsten up to 8 per cent of the alloy.  The process may be carried out in the following manner.  A paste containing 90 grams of platinum in the form of ammonium-chloroplatinate, 10 grams of rhodium in the form ammonium hexachlororhodate, and 10 c.c.s. of an aqueous solution of lanthanum nitrate containing 0.2 grams of lanthanium oxide, is made up to 200 c.c.s. with distilled water. The mass is dried and heated at about 350 DEG C to form platinum, rhodium and lanthanum oxide. The product is heated to 850 DEG C in a stream of hydrogen to reduce any rhodium oxide, pressed at about 30 tons per square inch and sintered at 1400 DEG C in hydrogen for about 1 hour.  In another example 96 grams of platinum dissolved in aqua regia, 4 grams of tungsten in the form of ammonium tungstate and a neodymium nitrate solution containing 0.15 grams of neodymium oxide are mixed and treated to form an agglomerate containing platinum, tungsten and neodymium oxide.  The agglomerate may be used in the production of sparking plug electrodes, thermo-couples, electric furnace heating elements and wire gauzes or the like for use as catalysts in chemical operations.  Specifications 645,541, 645,681 and 645,682 are referred to.
Patent GB-634744-A (GB)
Title: Improvements in or relating to resilient wheels
IPC: B60B17/00
Filed: 1947-08-08
Abstract: 634,744. Vehicle wheels. CROMPTON PARKINSON, Ltd. Aug. 8, 1947, No. 22019. Convention date, May 25, 1940. [Class 144 (i)] A resilient wheel, particularly for railway vehicles, comprises a pair of flanges carried by the hub (or rim) and spaced from a floating disc carried by the rim (or hub) by rubber &c. cushion-rings which act in shear under load and torque stresses. The outer pair of flanges are connected by transverse bolts passing through clearance holes in the other disc and having their median portions of reduced thickness to provide flexibility in use. In the form shown in Fig. 2, rubber cushions 9, 16, with metal facings 10, 11 and 16, 17 respectively are secured in compression between a flange 8 projecting from the rim 7 and flanges 3, 5 projecting from the hub 1. The inner flange 3 is welded to the hub and the outer flange 5 detachably secured by bolts 6. The peripheral portions of the flanges 3, 5 are connected by tie-bolts 20 having reduced portions 34 in the region of clearance holes 31 in the flange 8. The inner end 21 of each bolt is threaded into the flange 3, up to a shoulder 22, the outer flange 5 being clamped between a shoulder 26 on the bolt and nut 28.
Patent GB-803665-A (GB)
Title: Improvements relating to electron tubes
IPC: H01J19/46
Filed: 1955-08-02
Abstract: 803,665. Velocity modulated tubes. EITELMcCULLOUGH, Inc. Aug. 2,1955 [March 16, 1955], No. 22148/55. Class 39(1). A klystron or other discharge tube comprises a metal anode 2 forming part of the envelope, flat ended annular ceramic members 6, 16, 14, 13 coaxially sealed together to form further envelope parts an indirectly heated cathode 4 and a focusing electrode 5 having tubular conducting supports 28 and annular metallic carrying means 21, 26, 31 for cathode, heater and focusing electrode having parts sandwiched between adjacent pairs of ceramic members and sealed to the flat ends thereof, the carrying means 21, 26, 31 forming terminals and one of the carrying means 21 having complementary sealing flanges having cylindrical and annular portions, the annular portions being respectively sealed to ceramic members 6, 16 and the cylindrical portions being sealed at their free ends by a metallic bond. The focusing electrode 5 and cathode support 28 are mounted from the terminals by bolts 22, 27 and conical members 21, 26 and the gun anode 2 is sealed at one end to a metal drift tube 3 and at the other end via sealing flanges 7, 8 to a ceramic cylinder 6, an abutting tip 9 taking the axial thrust at the seal. Ceramic cylinders 13, 14 and 16 are metallised and the metallised ends sealed to the intervening metal members, an additional metal member 23 being preferably interposed at the cathode terminal seal. The filament structure 29 which heats the tantulum cathode disc 6 by electron bombardment consists of four curved filaments each secured at one end to central conductive rod 37 and at the other end to one of four conductive rods 33 as indicated more particularly in Fig. 2 (not shown). The central filament support rod 37 conducts heat away from the adjacent ends of the filaments 29 and so prevents overheating of the central area of the cathode disc 4 and is carried on a cap 36 provided with holes communicating with a metal exhaust tube 39 covered by a threaded cap 42. The filaments 29 may alternatively be of zig-zag shape the central rod 37 still being provided. Heat shield 34 is provided between heater and cathode supporting body. Flanges 17, 18 when sealed together serve to automatically align the anode and " drift tube " with the cathode and focusing electrode. In assembly the electrodes are first mounted on the header structure and finally the header is sealed to ceramic tube 6 by sealing members 17, 18 together. The various seals are made by brazing except that between metal members 7, 8 ; 17, 18 which are made by welding. In a modification, Fig. 3 (not shown), the cathode is a nickel plate with an oxide coating and is heated by a heating element embedded in insulation. In this case only one heater support 33 is necessary the ends of the heater being connected between 33 and 37.
Patent GB-531723-A (GB)
Title: Improvements in and relating to the preparation of softened rubber
IPC: C08K5/37
Filed: 1939-07-31
Abstract: 531,723. Preparing softened rubber. BRITISH RUBBER PRODUCERS' RESEARCH ASSOCIATION. (Hastings, J. D.). July 31, 1939, No. 22153. [Class 70] Softened rubber is obtained by incorporating as peptizing agents mercaptonaphthalines or xylyl mercaptan in latex prior to coagulation, the process consisting of dispersing or dissolving the peptizing agent in a liquid compatible with latex, disseminating the dispersion or solution throughout the latex, coagulating the latex, and subsequently drying the coagulum. The peptizing agent may be thio-beta-napthol (napthyl-betamercaptan) or xylyl mercaptan dissolved in an inert hydrocarbon such as benzene or kerosene and formed into an emulsion with water containing potassium oleate or other emulsifying agent before mixing with the latex, the treated latex being subsequently coagulated with formic or acetic acid, drained and sheeted, and dried in a smoke house at a temperature of about 140‹ F., reduced during the later stages to 120‹ F.