baber/WOPTO huggingface dataset:
Patent GB-1361829-A (GB)
Title: Dynamo-electric machines including adhesively bonded commutators
IPC: C08G59/42
Filed: 1971-09-06
Abstract: 1361829 Commutators for dynamo-electric machines GENERAL ELECTRIC CO 6 Sept 1971 [1 Oct 1970] 41401/71 Heading H2A [Also in Division B3] A dynamo-electric machine comprises a commutator including metallic segments 18 circumferentially spaced around and adhered to the alumina coated cylindrical surface of a base member 16, the adhesive being non- metallic and non-conductive and the bonding surface of each segment being substantially flat and tangential to the outer surface of the coated base member. The segments are of rectangular cross-section and may be of copper, zinccoated copper or aluminium. The base member is made of steel. Preferred adhesives are epoxy and polyimide resins.
Patent GB-1326303-A (GB)
Title: Boring head with guide device
IPC: B23D77/04
Filed: 1971-09-06
Abstract: 1326303 Drills SANDCO Ltd 6 Sept 1971 [29 Sept 1970] 41485/71 Heading B3C A boring head has a head portion 10 and is adapted for use with a rotatable drill holder. said boring head having one or more guide pads 22 and at least one separate guide device which includes one or more rings 16 supporting roller bodies 12 which are arranged to run against the surface of a bore hole to be made by the head. The pressure the roller bodies exert on the surface of a bore hole may be adjusted by means of a shift nut 15 which acts through a lock washer 13 and an elastic spacer 14 on rings 16. This enables the roller bodies to give guidance or guidance in combination with press polishing. and sizing. The roller bodies may be conical in which case they are supported on an inclined plane to give mainly line contact against the surface of a hole, adjusting their position may be suitably done by axial movement of them and/or their support.
Patent GB-957857-A (GB)
Title: Self-releasing tap holder
Inventor: BENJAMIN MILTON LLOYD
IPC: B23G1/46
Filed: 1962-11-02
Abstract: 957,857. Claw clutches. ERICKSON TOOL CO. Nov. 2, 1962, No. 41589/62. Heading F2C. [Also in Division B3] A self releasing tap holder comprises a tap driver having a driver clutch element with circumferentially spaced teeth, a tap holder having a driven clutch element with corresponding teeth, spring means yieldably holding the elements in interengagement, and a clutch disengaging member on the holder operative to disengage the teeth upon predetermined relative axial travel of the driver and holder. The tap T, Fig. 1, is held in a collet 7 carried by a chuck 5, and the chuck is held in a body 3 by pins 4, 6. Body 3 is slidable in a member 2 and a driver clutch element 18 is secured to member 2 by pins 17. A driven clutch element 20 has keys 21 and is axially slidable on body 3, the clutch members being held in engagement by spring washers 28. The tang end 8 of the tap is held in a floating member 10. The tap is inserted into the workpiece and rotated thus moving chuck 5 and body 3 axially until a member 26 disengages the clutch and causes ratcheting of the clutch teeth, but as soon as the direction of rotation is reversed the teeth re-engage to withdraw the tap. In a modification, Fig. 6, driven clutch element 42 is axially slidable in body 41 and the driving clutch element 48 is integral with the holder 40.
Patent GB-1183959-A (GB)
Title: Electric Switch with Coil Spring Contact
IPC: H01H21/02
Filed: 1967-09-13
Abstract: 1,183,959. Mechanical switches without quick action. REPUBLIC TOOL & MFG. CORP. 13 Sept., 1967 [26 Sept., 1966], No. 41718/67. Heading H1N. An electric switch comprises a coil spring contact 38<SP>1</SP>, Fig. 3, normally urged into engagement with a fixed contact 47 and separated therefrom by a manually actuated camming member 56 which moves between the contacts. In the example the fixed contact 47 is the cylindrical base of a flashlamp bulb which is mounted in a support 50 carrying a cylindrical actuator having an operating lever 58. In a modification (not shown) the fixed contact comprises the central electrode contact of a lamp battery, the coil spring contact being separated therefrom by a projection of a rectilinearly moving slider actuator.
Patent GB-1505977-A (GB)
Title: Echo ranging apparatus
IPC: G01S7/527
Filed: 1976-10-08
Abstract: 1505977 Ultrasonic ranging systems RAYTHEON CO 8 Oct 1976 [28 Oct 1975] 42008/76 Heading G1G In a ranging system, e.g. a depth sounder, employing a receiver utilizing one bit sampling of received echoes, a correlator 48, Fig. 3 (not shown), correlates a sequence of one bit samples against a sequence of reference samples e.g. provided by a sound wave transmitter, an envelope detector 46 provides the envelope of received echoes, a peak detector 54 provides the time occurrence of the peak of the envelope, a gate generator, Fig. 6 (not shown), responds the time of occurrence of the envelope peak to provide a track gate signal which brackets a succession of output pulses from the correlator to delineate coarse range or depth, and output pulses of the correlator falling within the gated interval are applied to a second peak detector 52 to give a range or depth reading corresponding to the time of occurrence of the maximum output pulse of the correlator.
Patent GB-1280918-A (GB)
Title: Improvements in projectors
Inventor: KOCH-BOSSHARD ERNST
IPC: F41G3/26
Filed: 1970-09-03
Abstract: 1280918 Small arms; lamps E KOCH BOSSHARD and M A PIETSCH-FABER 3 Sept 1970 [13 Nov 1969] 42125/70 Headings F3C and F4R A projector sights an object by means of a light spot and simultaneously illuminates the object. In an embodiment the light spot 13 is produced by a source of light which is focused on to an object by means of a telephoto lens and the object illumination is effected by means of a ring of light 12 surrounding the spot 13, said ring of light being produced by the same light source. The projector comprises a frame 1 which houses the telephoto lens 2, 3, a conical sleeve 5 having an inner reflection surface 6 and positioned between the lens 2, 3, a holder 4 having a passage 4<SP>1</SP> therethrough, one part of which supports the lens 3 and another part of which is cone-shaped and has an inner reflection surface 8, a filament 7 which is the light source, and a concave mirror 10. Part of the light entering the lens comes direct from the filament 7 and another part of the light is reflected from the mirror 10. The greatest part of the light produces the spot 13 and the remainder produces the ring of light 12, the latter including light reflected from the surfaces 6 and 8. By covering a part of the filament 7, a cross-line 14 is produced corresponding to the target marker (15, Fig. 8, not shown). The projector may be attached to a weapon by means of a clamping block (22<SP>1</SP>, Fig. 9, not shown).
Patent GB-998050-A (GB)
Title: Improvements in or relating to thermally-operated control means
IPC: H01H37/48
Filed: 1962-11-08
Abstract: In a rod and tube type thermostat (see Division G1) the actuating element is a crystalline material having the formula Mn2- xCrxSb1- yIny where 0.025\sEx\sE0.20 and 0\sEy\sE0.05.  The coefficient of thermal expansion is 0.001% per degree C. at lower temperatures and 0.04% per degree C. at temperatures around 100 DEG C.
Patent GB-1181988-A (GB)
Title: Apparatus for Cutting and Removing Pieces from Sheets
Inventor: ASSMANN GUNTHER
IPC: B29C51/44
Filed: 1967-09-19
Abstract: 1,181,988. Cutting &c. apparatus. G. ASSMANN. 19 Sept., 1967, No. 42562/67. Heading B4B. Apparatus for cutting and removing waffle pieces from a waffle plate comprises cutting means for dividing the waffle plate into strips and cutting-out means positioned after the cutting means, the cutting-out means having upper platen means on which are mounted cutting heads for severing the waffle pieces from the strips and lower platen means for supporting and locating the strips for cutting out, means being provided for removing the severed waffle pieces, and the cutting-out means being adjustable to allow for different sheets having differently spaced waffle pieces. In the form shown, a waffle-plate 1 is fed from preceding processing machines to belts 2 which transfer it to a feed carriage 3 at which time a switch 14 is actuated to set the driving mechanism of the apparatus in motion. During the movement of the carriage 3, the waffle plate is cut into strips by knives 15. A handle 11 engages a hook 18 to move a hinged flap 8 to the vertical position. After a time interval determined by a limit switch, the flap 8 is lowered to remove the waste caused by cutting the waffle plate. Before return of the carriage 3, a bracket 22 with flap 23 moves downwardly and retains the waffle plate so that the strips thereof, which have been aligned by guideways 12, are positioned with the waffle pieces corresponding to holes 24 of mutually adjustable cutting plates 25. Cutting heads 26 are secured to mutually adjustable plates 27 which are mounted in channel members 29 connected to rods 30 movable by the driving mechanism. After severing, the waffle pieces fall into the pans of a frame 31 movable along channel members 32 and closed by a bottom plate 34 movable independently along the members 32. The frame 31 and plate 34 are moved over a belt 33 and the plate 34 is retracted when it is in its downward position. The waffle pieces then fall on to the belt 33.
Patent GB-1515700-A (GB)
Title: Process for the manufacture of a polyether
IPC: C08G75/23
Filed: 1975-10-20
Abstract: 1515700 Aromatic polyether polysulphones BASF AG 20 Oct 1975 [25 Oct 1974] 42886/75 Heading C3R Aromatic polyether polysulphones are obtained by reacting bisphenolates of formula where Me is an alkali metal or onium cation and Ar is an aromatic radical, with a sulphonyl halide of formula where X is chlorine or bromine and Ar<1> is an aromatic radical, one or both of the bisphenolate and sulphonyl halide optionally being replaced partly or wholly by a precondensate of the bisphenolate and sulphonyl halide. Preferably the reaction is carried out in a first stage at - 50 to + 150 C. and then in a second stage at 150 to 350 C. In examples the di-sodium salt of bis - (4 - hydroxyphenyl) - sulphone is reacted with benzene sulphochloride and with p-toluene sulphochloride; the di-potassium salt of resorcinol is reacted with p-toluene sulphochloride and the dipotassium salt of bis(4- hydroxyphenyl)ketone is reacted with benzene sulphochloride.
Patent GB-1027365-A (GB)
Title: Wiper mechanism for an evaporator of the film-type
IPC: B01D1/22
Filed: 1963-10-30
Abstract: 1,027,365. Evaporators, film-type; magnetically-driven stirrers. FARBENFABRIKEN BAYER A.G. Oct. 30, 1963 [Nov. 9,1962], No. 42900/63. Headings B1B and B1C. An evaporator for evaporating liquid in the form of a film comprises a tube 1 surrounded by heating jacket 2 and provided internally with wiper blades 18 mounted on a rotary shaft 7, the wiper blades being loosely held in slots 17 at the ends of tubular members 16 attached at spaced intervals perpendicularly to the shaft. The shaft 7 is connected to magnet 4 which is rotated by external magnet 5 connected by shaft 6 to a driving motor. On rotation of the shaft 7, the blades move outwards under the influence of centrifugal force so that their long edges slide over the film of liquid being evaporated as it runs down the hot inner wall of tube 1. The wiper blades may be flat glass rods, and the evaporator itself may also be made . of glass. The shaft and the tubular members 16 may be made of metal. The liquid to be evaporated enters the apparatus through preheating coil 12, and the vapours are withdrawn.through outlet. 13. The evaporator may be maintained under vacuum at connection 19.
Patent GB-908442-A (GB)
Title: Improvements in navigational aids
IPC: G01S1/02
Filed: 1959-12-18
Abstract: 908,442. Aircraft navigation systems. EBELER, K. Dec. 18, 1959 [Dec. 22, 1958], No. 43125/59. Drawings to Specification. Class 40 (7). [Also in Group XXXIII] In an aircraft navigation system ground marks in the form of complete concentric circles from which parallel marks lead to further ground marks having portions which converge along straight lines towards a landing field, are provided for course guidance and landing. The marks may transmit radiant energy, or reflect such energy transmitted from the aircraft; radio or infra-red waves may be used. The cathode-ray tube display unit in the aircraft includes a drift indicator. It is stated that automatic aircraft guidance may be provided.
Patent GB-1205013-A (GB)
Title: Improvements in or relating to electric motors
Inventor: GLENISTER RONALD FREDERICK
IPC: H02K29/12
Filed: 1966-09-27
Abstract: 1,205,013. Electric motors. SMITHS INDUSTRIES Ltd. 27 Sept., 1967 [27 Sept., 1966], No. 43139/66. Heading H2A. The permanent-magnet rotor 12 of an electric motor is rotated by the field of coreless stator coils 20 wound round the motor casing. This casing is formed of two identical plastic parts 10 which fit together to enclose the rotor and which are provided with rotor spindle bearings 16. Each casing part has a central flange embodying the bolt holes 23, 24, and two side flanges 18 providing two channels 19 for the field coils 20. A printed-circuit board 32 secured by a screw 31 carries a capacitor 33 and transistor 41 interconnected to the field coils 20 and a trigger coil 38 wound in one of the channels 19, in conventional manner. Each field coil may have a separate transistor and trigger coil so that they may operate alternately (Fig. 9, not shown).
Patent GB-1217875-A (GB)
Title: Electronic driving circuit particularly but not exclusively for time-pieces
Inventor: REICH ROBERT WALTER
IPC: G04C3/06
Filed: 1968-09-11
Abstract: 1,217,875. Oscillating motors. R. W. REICH. 11 Sept., 1968 [23 Feb., 1968], No. 43163/68. Heading H2A. [Also in Division G3] An electronic driving circuit particularly for a timepiece comprises an excitation coil 6, a driving coil 7, and a magnet assembly 1 (Fig. 1 or 2, not shown) formed by permanent magnets having non-magnetic members interposed therebetween, the coil 6 and the magnet assembly being so associated with a mechanical oscillator that a varying current is generated in the coil 6 by relative motion between the coil 6 and the magnet assembly during oscillation of the oscillator, and the coil 6 forms at least part of a resonant input circuit of a transistor amplifier of which the driving coil 7 forms at least part of a resonant output circuit and in which at a predetermined frequency of oscillation of the mechanical oscillator unidirectional current pulses flow to maintain the oscillations of the mechanical oscillator at said predetermined frequency. The magnet assembly comprises magnetic plates joined by adhesive layers constituting the non-magnetic members. Alternatively the magnet assembly comprises a block of ferromagnetic material magnetized in strips separated by non-magnetic strips. The adjacent ends of the magnets may be of the same or of opposite polarity. The coils 6, 7 may be mounted coaxially and arranged between two magnet assemblies each carried by one of two discs 5 (Fig. 3, not shown) rigidly mounted on an oscillatable shaft 4 to form the mechanical oscillator. Alternatively the coils 6, 7 are mounted between the discs 5 at diametrically opposite positions, one of the discs 5 carrying a magnet assembly 1 (Fig. 4, not shown) cooperating with the coil 6 and an isotropic magnet (8) co-operating with the coil 7. In the amplifier the resonant input and output circuits comprise respectively the coil 6 in parallel with a capacitor 10, and the coil 7 in parallel with a capacitor 11, and the two circuits are resonant at the same frequency. Due to coupling between the coils 6, 7 the variation of the amplification of the amplifier with the input frequency is such that should the mechanical oscillator oscillate at a frequency above or below the desired frequency the amplification is reduced or increased to maintain the frequency of the mechanical oscillator substantially at the desired frequency.
Patent GB-1318648-A (GB)
Title: Epoxy resin composition
IPC: C08G59/06
Filed: 1970-09-09
Abstract: 1318648 Laminates CIBA-GEIGY AG 9 Sept 1970 [26 Sept 1969] 43205/70 Heading B5N [Also in Division C3] Laminates are prepared using an adhesive comprising an " advanced " (i.e. higher molecular weight) epoxy resin prepared by reacting an epoxy resin, a di-, tri- or tetra-hydric phenol and a catalyst which is an imidazole, benzimidazole, imidazoline, a di- or tetra-hydropyrimidine, a dihydroquinazoline or a salt or mixture of the above (see Division C3). In an example a resin is prepared by reacting a diglycidyl ether of bisphenol A (1000 g.) with 299 g. bisphenol A, 37 g. p-tert-butylphenylglycidyl ether and 0À04 g. imidazole. The resultant resin in acetone solution, hardened by dicyandiamide was used to prepare a 12-ply glass cloth laminate curing for 1 hour/350 F./500 p.s.i.
Patent GB-1519534-A (GB)
Title: Moulding compositions including unsaturated polyesters and an amide of an unsaturated aliphatic carboxylic acid
IPC: C08G63/553
Filed: 1976-10-19
Abstract: 1519534 Particulate unsaturated polyester moulding compositions SOC ITALIANA RESINE SIR SpA 19 Oct 1976 [30 Oct 1975] 43408/76 Headings C3R and C3P A particulate moulding composition comprises (a) from 10 to 50% by weight of an unsaturated polyester A and/or B wherein A has a melting point greater than 70 C., an acid value of less than 50 and a Gardner viscosity of from Y to Z3 and is derived from optionally halogenated 2,2 - bis - (4<1> - hydroxycyclohexyl) propane and an unsaturated dicarboxylic acid, and B has a melting point greater than or equal to 60 C., an acid value less than 50 and a Gardner viscosity of from U to Z2 and is derived from an alkylene glycol, an unsaturated dicarboxylic acid and a saturated dicarboxylic acid, (b) from 0À5 to 10% by weight of an amide of an ethylenically unsaturated aliphatic carboxylic acid, (c) from 0À2 to 2% by weight of an organic peroxide having a decomposition temperature above 70 C. and (d) an inert filler. The composition may also contain a polymerization inhibitor and a lubricant. The Examples describe compositions containing (a) an unsaturated polyester derived from 2,2-bis-(4<1>- hydroxycyclohexyl) propane and fumaric acid, optionally with an unsaturated polyester derived from isophthalic acid, fumaric acid and propylene glycol, (b) acrylamide, (c) dicumyl peroxide and (d) silica, calcium carbonate, asbestos powder and glass fibres.
Patent GB-1506277-A (GB)
Title: Method for welding cylindrical elements to one another
IPC: B23K9/028
Filed: 1975-10-22
Abstract: 1506277 Welding by fusion; tube expanding ULTRA CENTRIFUGE NEDERLAND NV 22 Oct 1975 [25 Oct 1974] 43423/75 Headings B3R B3J and B3Q In a method of welding cylinders 11, 12 together end-to-end, the regions adjacent the ends are subjected to radial pressure (e.g. for truing) by an elastic sleeve 13 (e.g. of Al), which bridges the ends, during welding, the pressure being provided by fluid pressure, e.g. oil, water or air, fed to a space 22 between the sleeve and a support member 20. The sleeve 13 includes a circumferential groove and vent channels 24 to prevent the welding of the sleeve to the cylinders and the build up of gas respectively. In use, the sleeve may be inside the cylinders (Fig. 1, not shown) and be supported by a bobbin-type support.
Patent GB-1482969-A (GB)
Title: Non-flammable binder compositions
IPC: C08K3/34
Filed: 1974-10-07
Abstract: 1482969 Polymer/silicate binder compositions KANSAI PAINT CO Ltd 7 Oct 1974 [12 Oct 1973 24 Oct 1973] 43426/74 Heading C3P A water-soluble silicate of an alkali metal or (substituted) ammonium is mixed with an aqueous polymer composition which has been prepared by aqueous suspension polymerization of an ethyleneically unsaturated monomer in the presence of a water-soluble resin having neutralized carboxyl groups. Typical resins are maleinized oils, unsaturated alkyds, copolymers containing acrylic acid residues and maleinized polybutadiene. The compositions may also contain pigments such as silica, titania, and zinc oxide. Colloidal silica is included as a water-soluble silicate and exemplified polymers are styrene - ethyl acrylate, styrene - ethyl acrylate - acrylonitrile, styrene - butyl acrylateoctyl acrylate - acrylic acid, styreneethyl acrylate - octyl acrylate - acrylic acid - hydroxyethyl acrylate - acrylonitrile copolymers and polybutyl methacrylate. The products are non-flammable and can be used to coat mineral surfaces such as slate, iron, aluminium and glass.
Patent GB-1101211-A (GB)
Title: Aleohol-soluble polyamides
Inventor: WILSON ALEC FRANK
IPC: C08G69/48
Filed: 1963-11-04
Abstract: Imide-terminated polyamides are prepared by reacting a polymerized fatty acid with a polyamine in the presence of a dicarboxylic acid or acid anhydride or by reacting the said anhydride with a polymer prepared from the polymerized fatty acid and the polyamine. The polymerized fatty acids may be dimers or trimers and may contain some monomer, e.g. hydrolysed stand oils. They may be hydrogenated catalytically to remove unsaturation. Polyamines specified are: ethylene, 1,3-propylene, tetramethylene, hexamethylene, phenylene and xylylene diamines and diethylene triamine. An excess of amine may be used. Terminating agents specified are phthalic, tetrahydrophthalic, methyl tetrahydrophthalic, methyl endomethylene tetrahydrophthalic, hexahydrophthalic, methyl hexahydrophthalic, succinic, tetrapropenylsuccinic, dodecyl succinic, and maleic acids.  5-50 moles of terminating agent may be used per 100 of polymerized fatty acid.  When the terminating agents is an acid some diamide may be formed in addition to imide.  All 3 reactants may be mixed together or the terminating anhydride may be added to the preformed polyamide. Minor amounts of other aliphatic dicarboxylic acids may be added, e.g. sebacic, pimelic and azelaic.  The product is soluble in methanol, ethanol, I.M.S. and propanol.  It may be used as a varnish, ink, lacquer or paint for metal, wood, glass, plastic, or rubber or as an adhesive.
Patent GB-1030019-A (GB)
Title: Improved torque ratio control device
IPC: H02K7/18
Filed: 1963-11-04
Abstract: 1,030,019. Automatic control of hydroelectric plant. DOMINION ENGINEERING WORKS Ltd. Nov. 4, 1963 [Nov.20, 1962], No. 43478/63. Heading G3R. The relative loading of two hydro-electric machines having electrical rotors associated with contra-rotating water wheels in a common water passage is automatically controlled by variation of their relative speed. As described fixed-pitch axial-flow contra-rotating water wheels 1, 2 mounted in a water passage 4 are respectively coupled through concentric shafts 6, 5 to rotors 9,11 of two dynamo-electric machines. The stators of the dynamo-electric machines are connected to a common three-phase network as shown. The lower dynamo-electric machine is synchronous and the upper is of the wound-rotor induction type. The stator currents, which represent rotor torques, are applied to a comparator 19 which controls a rotor resistance 18 associated with the upper machine so that the torque ratio is maintained at a desired value. The upper dynamoelectric machine may alternatively be of the commutator type controlled by brush shifting. Alternatively the upper machine may be a D.C. machine or a synchronous machine associated with a rectifier and inverter. Variations of the torque ratio may alternatively be detected by strain gauges associated with the transmission shafts or by the resultant swirl in the outlet of passage 4.