baber/WOPTO huggingface dataset:
Patent GB-851350-A (GB)
Title: Improvements in or relating to sights for trench mortars and similar fire arms
IPC: F41G1/50
Filed: 1956-12-17
Abstract: 851,350. Sights for trench mortars. NEISIUS, C. Dec. 17, 1956, No. 38496/56. Class 92. A sight for trench mortars has two supports which are relatively adjusted automatically by the elevating and training gear. Thus for indirect sighting the bearing of the sight from an aiming stake remains the same as the bearing of the barrel from a normal position as the motar aim is changed. As shown in Figs. 6 and 7 the forward support B<SP>1</SP> is rigidly mounted on a gear 13, and rotated by a pinion 11, driven by the training gear. The rear support 21 is moved in a straight line by a worm drive from the elevating gear. In the construction shown in Fig. 8 the rear support 21 is fixed and the forward support B<SP>1</SP> is adjusted by the compound movement of training and elevating gear drive pinions 11, 15 through a differential gear.
Patent GB-1043045-A (GB)
Title: Detergent compositions
IPC: C11D1/04
Filed: 1964-09-22
Abstract: Detergent compositions comprise (a) a water-soluble anionic, non-soap, organic detergent, (b) a water-soluble salt of a C8- 18 fatty acid, and (c) a quaternary ammonium halide having one C10- 20 alkyl group.  Component (a) may be one or more of many known anionic detergents containing sulphate, sulphonate, carboxyl or phosphate groups, including alkyl-benzene sulphonates, salts of sulphated polyethenoxylated phenols and alcohols, alkyl sulphates, isethionates, fatty ethanolamide sulphates, taurides, and hydroxy-alkane sulphonates. Specified cations in the anionic detergents are Na, K, Li, and Mg. Component (b) may be a conventional sodium or potassium soap, e.g. potassium oleate, others being specified.  Typical of many specified components (c) are cetyl trimethyl ammonium bromide and arachidyl diethyl benzyl ammonium chloride.  The compositions may also contain an inorganic or organic builder salt, including neutral and acid sodium phosphates and condensed phosphates, sodium silicate and meta-silicate, sodium carbonate, sodium sulphate, borax, tri-sodium nitrilo-tri-acetate, and the tetra-sodium salt of EDTA.  Further optional ingredients mentioned include fatty acid alkanolamides, xylene and toluene sulphonates, ethanol, ethylene glycol, hexylene glycol, sodium carboxymethyl-cellulose and other cellulose derivatives including ethers and sulphates, polyvinyl alcohol, and a wide variety of bleaching agents, including sodium hypochlorite, sodium and potassium perborates, potassium permonosulphate, chlorinated cyanuric acid derivatives, and N-chloro hydantoins and imides. The compositions may take the form of beads, grains, flakes, chips, powders, and tablets. In particular, they may be prepared by spray-drying an aqueous slurry of the ingredients to give hollow, thin-walled spherical particles.
Patent GB-1520317-A (GB)
Title: Apparatus for separating solids from a liquid
IPC: B01D33/11
Filed: 1975-09-22
Abstract: 1520317 Rotatable filter screen MASCHINENFABRIK BENNINGER AG 22 Sept 1975 [30 Sept 1974] 38806/75 Heading BID Solids (e.g. textile fibres) are separated from a liquid by passage through a rotatable partly submerged filter screen 19 mounted in a tank 2 which tank has an inlet (1 Fig. 2 not shown) and an outlet 3 so arranged that liquid passes through the submerged region of the screen surface. At least one cleaning nozzle(s) 39 is/ are mounted adjacent the screen surface to direct cleaning fluid (e.g. air) transversely to the screen surface. A support 21, said at least one nozzle and a drive means 23 (Fig. 3 not shown) 24 and 25 form part of a unit that is freely removable as a whole from the tank. The cleaning nozzle(s) may reciprocate along guides 32 through crank 38. Removed solids fall onto inclined surface 8 and slide into solids sump 10. Filter screen 31 which may be frusto conical as shown is driven by motor 23 (Fig. 3 not shown) through a tongue 26 engaging screen stub shaft 14. The stub shaft and screen 31 may be lifted out of bearing 12 attached to inclined surface 8.
Patent GB-810925-A (GB)
Title: Electric circuit breaker with magnetic blow-out
IPC: H01H33/12
Filed: 1956-12-21
Abstract: 810,925. Sparking-preventing in switches. BROWN BOVERIE & CIE A.G. Dec. 21, 1956 [Dec. 23, 1955], No. 39049/5S. Class 38 (5). A circuit-breaker with magnetic flow-out has a main moving contact 4 movable in a direction away from the operating mechanism to the open position, and a moving arcing contact 1 movable towards the operating mechanism. The contact 4 is so shaped that the electrodynamic forces tend to hold it closed to bridge the fixed contacts and is mounted on an insulating rod 17 coupled to the arcing contact arm 12 pivoted at 11. A bar 13 connects the arm 12 to the conductor 8 to complete the current path through the arcing contacts 1, 2. To open the switch the operating mechanism moves a rod 15 to the right causing a link 16 to move to the left moves the arm 12 about its pivot so that both the main and arcing contacts are opened. Since the operating mechanism is at the front of the breaker the main contacts are readily accessible from the back of the breaker without the removal of operating parts.
Patent GB-1524200-A (GB)
Title: Push button electrical switches
IPC: H01H13/14
Filed: 1975-09-25
Abstract: 1524200 Retractive switches SHARP KK 25 Sept 1975 [2 Oct 1974] 39384/75 Heading H1N An electrical switch includes a unitary metal plate which has been bent after removing portions therefrom so as to define a pushbutton key comprising a top portion 84 joined by downwardly dependent strips 86 to a lower support 88, the key being biased to a non- operative position by resilient leaf springs 82 which connect the support 88 to a base plate 18. A single base plate 98 is provided with a number of integral switch keys, each encapsulated in resin 90, and is positioned above a substrate 100 carrying comb shaped contacts 102, 104 which are bridged by a conducting rubber plate 106 when a key 90 is depressed. Numerous methods of marking a key with a desired configuration are described.
Patent GB-925507-A (GB)
Title: Ultraviolet light absorbing glass
Inventor: BACON FRANK RIDER
IPC: C03C4/08
Filed: 1960-11-18
Abstract: 925,507. Coloured glass compositions. OWENS-ILLINOIS GLASS CO. Nov. 18, 1960, No. 39624/60. Class 56. An ultra-violet light absorbing green glass which gives good transmission of visible light comprises a soda-lime silica glass to which is added chromium oxide present in the glass in both the tri-valent and hexavelent state. The preferred composition is 60-75% (by weight) silica, 0.1-9.5% Al2O3, 6-12% CaO, 0-6% MgO, 0-1% BaO, 0-5% B2O3, 10-21% alkali metal oxides, less than 0-3% Fe2O3 and less than 0.3% total chromium oxides, present as both trivalent chromium oxide Cr2O3, and hexavalent chromium oxide Cr2O3, the latter ranging from 0.005 to 0.070%. Cobalt oxide in an amount 0.002-0.005% and copper oxide about 0.07% may be added to control the colour. KNO3 or NaNO3 may be employed as oxidizing agents to ensure the prescribed amount of hexavalent chromium is present in the glass. The batch is melted under carefully controlled oxidizing conditions which may be produced by the introduction of oxygen into the melt by means of an oxygen bubbler. Potassium or sodium dichromate and other chromates or chromites may be used to introduce chromium into the batch. U.S.A. Specification 2,974,052 is referred to.
Patent GB-1322342-A (GB)
Title: Strip take-up device
IPC: G03B21/43
Filed: 1970-08-18
Abstract: 1322342 Strip take-up device EASTMAN KODAK CO 18 June 1970 [19 June 1969] 29659/70 Heading G2A  A web take-up device (e.g. a film cartridge) comprises a cylindrical take-up member 15 rotatably supported inside another cylinder 13, which acts as a guide member, in a loose manner which allows cylinder 15 to move transversely of its rotational axis. The outer cylinder wall 13 has a flap portion F which can fold back as in Fig.6. In order to take up a web (W) on the core cylinder 15, the leading end W 1  of the web is introduced between rollers 41 and guide plates 40, so that the leading edge of the web is guided by flap F into the space between cylinders 13 and 15. Initially, because of its own weight cylinder 15 rests on the inside of cylinder 13, as seen in Figs. 4 and 6. One end of cylinder 15 is closed by a member 20 having a central hub 27 with radial drive flanges 28. A rotatable driving disc (30), Fig. 2 (not shown) having driving pins (31) can be moved into engagement with member 20 so that the driving pins engage flanges 28, and drive cylinder 15 clockwise as seen in Fig.6. The leading end W 1  of the web is driven round by frictional engagement between cylinders 13 and 15 until it passes the position P, after which it passes under cylinder 15. The weight of cylinder 15 now acts directly on the web, increasing the frictional transmission. As more and more film is wound on the core cylinder 15, it floats upward, eventually reaching a position Fig. 5 (not shown) in which it is coaxial with cylinder 13. In this position the cartridge may be closed up by closing flap F and securing it in position by tabs. When it is desired to withdraw the film, the tabs are broken.
Patent GB-1284751-A (GB)
Title: Sheet material for joining inorganic substrates
IPC: C03C3/064
Filed: 1969-08-07
Abstract: 1284751 Bonding MINNESOTA MINING & MFG CO 7 Aug 1969 [8 Aug 1968] 39666/69 Heading B5N [Also in Division C1] A sheet material 10 for use in joining inorganic substrates with a glass bond comprises a flexible, self-supporting layer comprising a fusible glass frit 11 held together by an extensible heatunstable synthetic polymeric organic binder 12 which depolymerizes and volatilizes at below the fusion temperature of the frit (the binder constituting a minor amount of the layer), to which is applied a layer of heat volatizable adhesive 13 and a removable liner 14, e.g. a silicone-treated flat stock paper. The polymeric binder 12 or adhesive 11 may be polymethylmethacrylate; polytetrafluorethylene; poly-α-methylstyrene; ethylene - propylene copolymers; propyleneethylene-diene terpolymer; olefin homopolymers or copolymers from α-olefin C 4-10  monomers; or a polymer which decomposes to formaldehyde below 100‹ C.
Patent GB-995241-A (GB)
Title: Improved polyester resins
Inventor: FIELDING HAROLD CROSBIE
IPC: C08G18/77
Filed: 1960-11-21
Abstract: Polyurethanes are produced by reacting unsaturated polyesters with a phosphorus isocyanate or a phosphonyl isocyanate in the presence of a catalyst.  The isocyanates are of the general formulae RnP(NCO)3- n and RnP(O)(NCO)3- n, where n is 0, 1 or 2 and R is alkyl, aryl, alkoxy or aryloxy.  The polyesters may be, for example, the reaction product of maleic anhydride, phthalic anhydride and propylene glycol or may be, for example, an oil modified glycerol-phthalic anhydride condensation product.  The catalyst may be, for example, triethylamine or dibutyltin diacetate.  A copolymerizable ethylenically unsaturated monomer, e.g. styrene and a catalyst, e.g. benzoyl peroxide, may also be present.  The reaction takes place at room temperature and the products may be post-cured at higher temperatures. The resins have increased fire-resistance and may be cast, used in making glass-fibre laminates or used as coating compounds.
Patent GB-843415-A (GB)
Title: Steel for use at elevated temperature
Inventor: SMITH GEORGE VERYL
IPC: C22C38/22
Filed: 1957-12-30
Abstract: A forgeable ferritic chromium steel having good strength at elevated temperatures has the following composition in percentages by weight: .C.up to 0.25 .Cr.7.50 to 8.25 .Mo.2.70 to 3.40 .Mn.0.0 to 3.0 .Si.0.0 to 0.75 .Ti.0.0 to 0.5 .Al.0.0 to 0.2 .V.0.0 to 0.4 .B.0.0 to 0.1 .Fe.the balance with impurities such as N The steel may be austenitized by heating at 1900 DEG  to 2200 DEG F., cooled in air to form a martensitic structure and tempered by heating to 1100 DEG  to 1150 DEG F.
Patent GB-1103458-A (GB)
Title: Improvements in or relating to bicycle pedals
Inventor: DICKENS DAVID
IPC: B62M3/08
Filed: 1965-09-27
Abstract: 1,103,458. Cycle pedals. JOHN BULL RUBBER CO. Ltd. 16 Sept., 1966 [22 Sept., 1966], No. 40351/65. Heading B7E. A pedal comprises a body part (10), Fig. 1 (not shown), of moulded plastics material having a central portion (11) provided with a stepped bore journalled on steps 19, 20, 21 of a spindle 22, and a moulded deformable plastics cap 13 which snaps over the end 21 of the spindle to retain the part (10) in position against a shoulder 18, the cap being provided with a rib formation 31 which snap engages into a 45 degrees angled groove in the end 21.
Patent GB-945499-A (GB)
Title: Improvements in or relating to arrangements for controlling the location of machines
IPC: G05B19/04
Filed: 1961-11-24
Abstract: 945,499. Selective signalling systems. FUJI TSUSHINKI SEIZO KABUSHIKI KAISHA. Nov. 24, 1960 [Nov. 24, 1959], No. 40455/60. Heading G4H. In a position control arrangement, instructions are entered by rotation of shafts AC1-AC3, Fig. 4, the rotation of shaft AC1, AC2 being added respectively to that of AC2, AC3 through 100:1 reduction gearing, and photo-electric seeking arrangements Cd1-Cd3 control a motor which positions a machine-tool slide L for example. The photo-electric arrangements Cd1-Cd3 each comprises a disc CC, Fig. 2 coupled to shaft AC1, AC2 or AC3 and a further disc CD, Fig. 3 coupled to shaft AD either directly or through reduction gearing G1 or G2 Fig. 4. Slits Sp2, Sn2 and a hole So2 in disc CD co-operate with holes Sp1, Sn1, So1 in disc CC so as to illuminate a respective one of three photo-cells when there is relative displacement between the discs in one direction, in the other direction or when the discs are in register, respectively. The photo-cells arranged to give a positive, negative, or zero output respectively when illuminated and control the motor so as to move slide L in a direction to cancel any relative displacement between the discs of a pair. If desired, the movement of slide L may be transmitted to shaft AD by an electrical follow-up system so that the control arrangement shown in Fig. 4 can be physically separated from the machine being controlled.
Patent GB-938698-A (GB)
Title: Polyamides
Inventor: COSTAIN WINSTON
IPC: C08K5/00
Filed: 1960-11-25
Abstract: Synthetic linear polyamides are stabilized against the effects of exposure to heat and oxygen by incorporating therewith during or after manufacture a cobalt chelate compound containing the group <FORM:0938698/IV(a)/1> where X is oxygen or sulphur, R is a hydrogen atom, a hydroxyl group or an alkyl or aryl radical substituted if desired, and in which any remaining valencies of Co are satisfied covalently.  An oxy acid of phosphorus or salt thereof may also be present.  In the examples, polyhexamethylene adipamide is made in the presence of:  - (1) bis-(N:N1-salicylal-1:2-diamino-cyclohexane)-aqua cobalt and (2) a complex from cobalt chloride, ethylene diamine and acetyl acetone.  In Example 3, the product of Example (1) is diluted with polyhexamethylene adipamide.  Specifications 677,733 and 839,067 are referred to.
Patent GB-1176459-A (GB)
Title: Photograhic Film Recording System
Inventor: PETERS CHARLES J
IPC: G11B27/36
Filed: 1968-08-26
Abstract: 1,176,459. Optical recording. SYLVANIA ELECTRIC PRODUCTS, Inc. 26 Aug., 1968 [24 Aug., 1967], No. 40645/68. Heading G5R. Recording on a light-transmissive photographic film 16 is monitored by means of a photo-detector 20 which produces an electrical signal representative of the amount of light passing through the film, this signal being compared with a signal related to the information being recorded to produce an error signal when the difference exceeds a predetermined amount. The photographic emulsion has a known light-absorption characteristic, and its absence may therefore be detected. The light used may be visible, infra-red, or ultra-violet, and coherent or non-coherent.
Patent GB-996606-A (GB)
Title: Method of preparing a magnetic record member
IPC: G11B5/64
Filed: 1961-11-15
Abstract: 996,606. Magnetic recording. INTERNATIONAL MACHINES CORPORATION. Nov. 15, 1961 [Nov. 15, 1960], No. 40856/61. Drawings to Specification. Heading H1H. [Also in Division G5] A magnetic record member is prepared by adhering a communicated magnetic material to a non-magnetic substrate, and magnetically annealing the material on the substrate. Prior art magnetic storage techniques have altered the magnetization of the record in accordance with an input signal, but in accordance with this invention the magnetic properties of the magnetic material itself may be varied to provide a record which can only be destroyed by heating above the annealing temperature. The record may be formed by uniformly heating the record member and applying a magnetizing field in accordance with the input, or by applying a uniform field and heating only the portions which it is required to anneal, or by first magnetically annealing the whole record member and removing the annealing by localized heating, in accordance with the input. The localized heating may be produced by infra-red radiation, or by an electron gun, the latter enabling fast writing speeds (several thousand inches per second) to be obtained. The record member may be demagnetized and used as a conventional magnetic record member, and the original record recovered by applying a uniform magnetic field in the appropriate direction, which may be along, transverse to, or perpendicular to the record member. The method is not restricted to digital data representation, but may be used for pictorial or acoustic records, as the degree of magnetic annealing may be varied. The record is read in the conventional manner. A suitable magnetic material is cobalt substituted magnetite, having the formula where x is between 0 and 1. The Specification gives details for preparing a cobalt substituted magnetite (x = 0À12) is suitable form by precipitation from aqueous solution. The hysterisis loop of this material measured in the direction of the applied field, is made squarer by magnetic annealing, the coercive force increasing from 500 to 600 oersteds, and the remanence from 400 to 800 gauss. The coercivity of the material becomes non-temperature sensitive when annealing (Fig. 2, not shown). Various arrangements of recording apparatus are described (Figs. 3-7, not shown) (see Division G5).
Patent GB-937221-A (GB)
Title: Improvements in or relating to photographic cameras having automatic exposure control means
IPC: G03B7/12
Filed: 1959-12-03
Abstract: 937,221. Photographic cameras; exposure control. KODAK Ltd. Dec. 3, 1959 [Dec. 5, 1958], No. 41080/59. Class 98 (1). In a camera the shutter opens to an extent limited by a photo-cell to act also as the disphragm. Depression of the camera release 64, Fig. 2, rotates by way of arm 62 the trigger 60 against a spring 48 until it contacts a lug 72 releasing from the detent 54 a projection 52 on the lever 50 which rotates a flywheel 78. An arm 84, Fig. 4, is forced out of the depression 82 and rotates arms 90, 92 rigidly and yieldably connected thereto respectively. A pin 98 on arm 92 co-operates with slots 100, 102, Fig. 5, to open the blades 34, 38 until a serrated edge 32 of blade 34 is arrested by an arm 24 on a photoelectrically energized moving coil 22. Flywheel 78 springs back to close the shutter. Manual override.-A member 140 has a lug 142 held against the edge 144b of a cam slot 144 in a setting disc rotatable relative to the disc 30 by a spring 148. A lug 143 engages arm 24 to set the position thereof regardless of the moving coil energization. For automatic exposures lug 142 is in the part 144a of slot 144 so that lug 143 is ineffective. Low light check.-Actuation of release 64 also moves a bar 104. If the illumination is too low for correct exposure a bar 106 pivoted to bar 104 contacts arm 24 and forces bar 104 to engage a stop 122 preventing further depression of release 64. Photographs with insufficient illumination may be taken by pressing a button 124 which moves arm 24 out of the path of bar 104. Specifications 937,222 and 937,223 are referred to.
Patent GB-1215508-A (GB)
Title: beta-ALIPHATIC-AMINOPROPIONAMIDES
Filed: 1968-08-28
Abstract: 1,215,508. Laminates. ARMOUR INDUSTRIAL CHEMICAL CO. 28 Aug., 1968 [28 Aug., 1967], No. 41129/68. Heading B5N. [Also in Divisions C2, C3 and C5] Compounds of the general formula RNHCH 2 CH 2 CONH 2  in which R is sec - alkyl or sec - alkyl- NH(CH 2 ) n , alkyl has 6-22 C atoms and n is 2 to 4, are used as slip agents for hot melt wax adhesives in laminating cardboard sheets together. A stainless steel-cardboard laminate is also made in Example 11.
Patent GB-1503908-A (GB)
Title: Carbon dioxide sensors
IPC: G01N27/416
Filed: 1975-09-22
Abstract: 1503908 Electro-chemical CO 2  sensor SOCIAL SERVICES SECRETARY OF STATE FOR 22 Sept 1975 [20 Sept 1974] 41158/74 Heading G1N A carbon dioxide sensor comprises a sensing electrode 13 of palladium-hydrogen or iridiumhydrogen, a reference silver/silver halide electrode 15, an electrolyte 21 including bicarbonate and halide ions (the same as in the reference electrode) and a carbon dioxide permeable membrane 22 retaining the electrolyte in contact with the electrodes. The sensor also responds to oxygen. To allow compensation for this, a third electrode 12 of palladium or iridium (the same metal as in the sensing electrode) is placed in contact with the electrolyte, the voltage between this third electrode and the reference electrode being a measure of oxygen, which value can be subtracted from the sum value (CO 2  + O 2 ) obtained between sensor and reference electrodes. The preferred electrode metal is palladium and the preferred halide chloride. The electrolyte preferably comprises MNaCl + 10<SP>-2</SP>MNaHCO 3  but may be either aqueous or in solid form. The membrane may be polystyrene or acrylic resin and is preferably water permeable when the electrolyte is solid. As an alternative, a solid electrolyte may be incorporated in a water absorbent membrane. The sensor is preferably mounted on a catheter 17 and the measurement is made by high impedance voltmeter (# 10<SP>14</SP> ohms). The method of preparing the palladium-hydrogen and iridium-hydrogen electrodes by electrolysis is described.
Patent GB-921162-A (GB)
Title: Improvements in or relating to methods of manufacturing sodium-vapour discharge tubes
IPC: H01J9/38
Filed: 1959-12-04
Abstract: 921,162. Discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 4, 1959 [Dec. 9, 1958], No. 41269/59. Class 39 (1). [Also in Group XXIII] In a sodium vapour discharge device having also a filling of neon at, e.g., 13 mm. pressure, and a small proportion of argon the tube is pretreated by filling it with argon, passing a discharge and subsequently providing the filling of Na, Ne and A. The argon is 0.1-1%, e.g. 0.5% of the volume of the neon. The pretreating discharge which is carried out at 0.1-0.15 mms. pressure, saturates the tube wall with argon so that the argon pressure is maintained and the ignition voltage remains at a sufficient level below the starting voltage. The tube is U shaped and is of lime glass with an internal layer of Na resistant glass, i.e. 10-30%, e.g. 24%, B 2 O 3 , 0-15%, e.g. 6%, K 2 O, 20-60% CaO and BaO, e.g. 10%, 38% respectively, 10-40%, e.g. 22% Al 2 O 3 , and is housed in an evacuated cylindrical bulb. It has thermionic electrodes.