baber/WOPTO huggingface dataset:
Patent GB-1241631-A (GB)
Title: Processes for obtaining vanadium suboxides
Inventor: TEEG ROBERT OLE
IPC: C01G31/02
Filed: 1969-03-24
Abstract: 1,241,631. Vanadium suboxides. TEEG RESEARCH Inc. 24 March, 1969, No. 15202/69. Heading C1A. Vanadium suboxide having the general formula VOx, where x is between 1À50 and 2.02 is prepared in bulk or single crystal form by heating vanadium pentoxide to a temperature of from 400‹ C. to 800‹ C. under a pressure of 10<SP>-1</SP> to 10<SP>-6</SP> mm. Hg. while controlling the oxygen pressure over the vanadium pentoxide. The oxygen pressure may be controlled by means of a " getter ", e.g. vanadium sesquioxide or alternatively the vanadium pentoxide is evaporated in a container while evacuating the container until vanadium suboxide remains. Where V 2 O 3  is used as the getter, it may be present in stoichiometric amount to combine with the V 2 O 5  to give the desired suboxide.
Patent GB-796939-A (GB)
Title: Filamentary tow crimpers
IPC: D02G1/12
Filed: 1956-05-16
Abstract: 796,939. Crimping fibres; rollers and roller arrangements in textile spinning &c machines; sliver guides. AMERICAN CYANAMID CO. May 16, 1956 [Nov. 4, 19551, No. 15233/56. Classes 120(1), 120(2) and 120(3) Apparatus of the nip-rolls and stuffing- box type for crimping filamentary tow comprises a feed trumpet tapering e.g. from 4-15 degrees, inwardly and so confining the tow being fed to the nip of the rolls so that the sides of the tow receive the same crimp as the centre thereof. In the operation of the crimping unit shown, tow 58 enters a stuffing- box unit 44 via a port 62 and is led through a trumpet 56 to the nip of synchronously driven and yieldably and adjustably mounted feed rolls 16 and 22 (having rims 28 and 32 of protective material e.g. a non- metallic substance such as nylon or a laminated and resin impregnated fabric) which direct the tow into a discharge trumpet 110 the outlet of which may be closed by a hinged gate 116 which is yieldably raisable under the pressure of tow compressed in the trumpet 110 against the adjustable controlling force of a weight 121, carried on a loading rod 120, or pneumatic or spring-loading means (not shown) to continuously discharge.the crimped tow 132. Crimping of the wetted tow occurs within a temperature range of 155F.-205F. and is set by continuously passing the hot tow, while in a relaxed state, to a cooling zone wherein the temperature is reduced to below 120F. The position of the unit 44 is adjusted by means of screws 50 and 52 engaging an angle 54. An extension 112 and associated parts, including the gate 116 may be rotated about the axis of the trumpet 110 at angles varying from 0-180 degrees. The rolls 16 and 22 may be water-cooled, Fig. 1 (not shown). The roll 22, on its shaft 26 is adjusted in its vertical position by means of a lever 84, pivoted about a shaft 86, and a screw 87 which act upon a pivoted linkage 74 against the pressure applied by an air piston 90. The horizontal and vertical position of the roll 16, on the shaft 20, are adjusted by means of a lever 92, mounted on a shaft 94, and a screw 96 which act upon a pivot arm 79 against a stop screw 100, and a lever 102, pivoted on the shaft 86, and a screw 104 which act upon a linkage 78 against the pressure applied by an air pistons 106: the pistons 90 and 106 allow the rollers to yield so that a knot or like obstruction in the tow will pass through the nip without damaging the apparatus. Specification 672,775 [Group IV(a)] is referred to.
Patent GB-870037-A (GB)
Title: Improvements in or relating to road vehicle suspension systems
Inventor: DICKINSON RONALD SIDNEY
IPC: B60G17/04
Filed: 1958-05-13
Abstract: 870,037. Vehicle spring suspensions. ARMSTRONG PATENTS CO. Ltd. Aug. 12, 1959 [May 13, 1958], No. 15246/58. Addition to 867,514. Class 108(2). A modification of the vehicle suspension system claimed in the parent Specification, comprises a leaf spring 10 with at least one coil spring 34 interposed between the leaf spring and the vehicle frame or chassis 14. The axle 18 is secured to the spring 10 and carries a platform 20 to which is pivotally secured one end of an adjustable link 22. The other end of the link 22 is pivotally secured to the free end of a control arm 24 of a double-acting lever type shock absorber 26. The actions of the shock absorber 26 and an hydraulic ram 28 are described in the parent Specification. When load on the vehicle is increased, a ram 30 may be caused, by the action of the shock absorber 26, to extend from the cylinder 28, and compress the coil spring 34 to raise the vehicle frame or chassis relative to the axle 18. If the load is decreased, the hydraulic ram cylinder 28 may be allowed to partly exhaust hydraulic medium into the shock absorber reservoir so that the ram 30 retracts into its cylinder and the spring 34 expands and the vehicle frame falls relative to the chassis.
Patent GB-410972-A (GB)
Title: Improvements in or relating to optical projections
IPC: G09F19/18
Filed: 1933-05-26
Abstract: 410,972. Optical-projection apparatus. HAIGH, B. P., 44, Caterham Road, Lewisham, London. May 26, 1933, No. 15300. [Class 97 (i).] Fixed or moving images or shadows are projected on to a large opaque screen 4, such as a back-screen for pageants &c. and without the use of optical systems, by a source of light 1 of small area so placed that a line joining it and the centre of the screen makes an acute angle with the screen ; the light source is also out of the line of vision of observers viewing the screen, is nearer to the screen than the observers, and is shielded from them by a screen 11. One or more fixed or movable objects, stencils, or transparencies 5, are arranged nearer to the light source than to the screen 4, and out of the line of vision of the observers. The objects may be mounted on carriers 5b which run on rails 9 and are movable by an endless belt 8 ; they may be flat and parallel to the screen, and their paths may be straight or curved and may be inclined to the screen so that the images or shadows change in size as they move. Two or more light sources may be used in combination with one or more objects, and they may be of different colours. Additional projectors may be provided for general illumination of the screen. When projection is on to a backscreen in a theatre, the source of light &c. may be above the screen, so that performers on the stage do not come into its beam.
Patent GB-539887-A (GB)
Title: Heels for boots and shoes
IPC: A43C13/02
Filed: 1940-10-16
Abstract: 539,887. Boots &c. COLBURN, H. Oct. 16, 1940, No. 15330. [Class 17 (iii)] A reinforcement for the top lift of a heel comprises an arcurate member having a vertical part 1, a horizontal part 2 provided with spikes 4 to engage the top lift, and a bridge or strip member 3, the whole being stamped out of metal in one piece. The combined top lift 5 and reinforcement 1 is secured to the heel by rivets driven through the leather top piece, the margin 6 of the vertical part 1 forming part of the tread.
Patent GB-883110-A (GB)
Title: Oxidation of hydrogen cyanide
IPC: C07C273/18
Filed: 1958-05-13
Abstract: <PICT:0883110/III/1> In the production of cyanic acid and cyanogen by oxidizing hydrogen cyanide with oxygen, e.g. in the form of air, in the presence of a catalyst, the gaseous reaction product is rapidly cooled by passage from the reaction chamber 1 through a confined orifice 7 to an enlarged cooling chamber 3.  The reaction product may be cooled to below 0 DEG C. in a tenth of a second.  The catalyst may comprise one or more elements 8 (three, as shown) of silver gauze and may be heated electrically.  Cold gas and/or liquid, preferably at a temperature of -50 - -200 DEG C., may be injected through pipes 5. Gaseous nitrogen at a temperature of -120 - -180 DEG C., or liquid alcohol at a temperature of -50 - -75 DEG C., may be employed.  Using alcohol, urethane and/or ethyl allophanate is formed.  Separation of the reaction products may be effected by selective cooling or absorption.  An example is given.ALSO:Urethane and ethyl allophanate are produced by injecting ethyl alcohol at a temperature of -50 DEG C.- -75 DEG C., e.g. -60 DEG C., into gaseous cyanic acid produced, together with cyanogen, by the oxidation of hydrogen cyanide in the presence of silver (see Group III).
Patent GB-742503-A (GB)
Title: Clearing broke in paper manufacture
Inventor: ROBERTS GEORGE RICHARD
IPC: D21F7/04
Filed: 1953-06-04
Abstract: 742,503. Removing broke in paper-making machines. BOWATERS DEVELOPMENT & RESEARCH, Ltd. March 15, 1954 [June 4, 1953], No. 15459/53. Class 96. Broke doctored at 8 from the top roll 1 of a wet press 1, 2 of a paper-making machine is moved by arms 12 across the back 6 of the doctor and falls on to a conveyer 16 which takes it between side walls 17 across the machine and feeds it into a shoot where it is washed down into a pit wherein rotating agitator blades repulp it. The arms 12 are on a rotating roll 11 and are canted backwardly. They may be straight or helical. In modifications, (1) the roll 11 &c. is moved into operative position by fluid pressure acting against spring- supported pistons ; and (2) the arms 12 are on a travelling belt instead of the roll 11, screwjacks being fitted for moving the belt into and from the operative position. The appliances may be used to facilitate starting-up, broke being collected from the wet press instead of from the wire-cloth.
Patent GB-831333-A (GB)
Title: Improvements in or relating to dynamo electric machines embodying a commutator and brush gear
Inventor: BACKLOG ARTHUR THOMAS
IPC: H01R39/38
Filed: 1956-05-17
Abstract: 831,333. Brush holders for dynamo-electric machines. MINISTER OF SUPPLY. Aug. 16, 1957 [May 17, 1956], No. 15471/56. Class 35. A dynamo-electric machine embodies a commutator 19 and brushgear comprising a brush 14 carried intermediate the length of a thin flexible metal strip 13 secured at one end to the free end of a cantilever spring arm 12 supported on a block 15 and at the other end in one embodiment to the block, the spring arm applying a tensile load substantially axially of the strip 13 which, against such load, is deflected by the commutator from the straight condition. As shown there are two cantilever arms 12 which may be part of a spring 11 or parts of two separate springs slotted to receive screws 16 adjustably securing them to the block which is in turn adjustably secured to the machine casing, not shown, by screws 17. At the end of strip 13 is a take-off lead connecting tag 18.
Patent GB-1330022-A (GB)
Title: Screw cap with lock
IPC: B60K15/04
Filed: 1971-05-18
Abstract: 1330022 Lock stoppers BLAU KG FABRIK FUER KRAFTFAHRZEUGTEILE 18 May 1971 [25 May 1970] 15513/71 Heading B8T A lockable stopper is screwed into a pipe &c. 8 having interrupted thread parts 8<SP>1</SP> against the ends of which a lock-bolt 4, 4<SP>11</SP> may be caused to abut by means of a barrel lock 3 to prevent unscrewing. The element 2 is screwed into position by manual rotation of a cap 1, the torque being transmitted only through a spring loaded friction clutch 6<SP>11</SP>, 6<SP>111</SP> to prevent overtightening. The friction elements 6<SP>11</SP>, 6<SP>111</SP> of this clutch bear against the inside of the top 1<SP>11</SP> of the cap 1 and are each shaped to provide torque in one direction; one for screwing-up and the other for unscrewing. There may be several bolts (Fig. 6, not shown).
Patent GB-1406788-A (GB)
Title: Abrasive segment
IPC: B24D5/12
Filed: 1973-03-30
Abstract: 1406788 Abrasive tools TYROLITSCHLEIFMITTELWERKE SWAROVSKI KG 30 March 1973 [15 May 1972] 15525/73 Heading B3D An abrasive segment for a wheel, such as a cut-off wheel, having a circular or polygonal blank 1, comprises a body 2 having parallel or part frusto-conical surfaces, a plane plate 3 for securing the segment to the blade and extending partly into the segment, and a fibrous material 12 extending parallel to the plate through the body. A number of the segments may be secured to the blade 1 to form the cut-off wheel, the plates 3 of the segments extending into a peripheral slot 19 in the blade and being secured therein by members 10, 17 which engage countersunk surfaces 7, 8 in the blank and holes 6 in the plates, screws 11 securing the members together. The plates extend partly into the bodies 2 of the segments, and two webs 12 of fibrous material, such as glass fibre, extend, one on each side of the plates, through the bodies 2.
Patent GB-497203-A (GB)
Title: Improvements in and relating to the de-aerating of the fuel supply of internal-combustion engines
Filed: 1938-05-25
Abstract: A fuel deaerator for an aeroplane, comprises vents which are controlled both by float-operated valves and by weight-operated valves.  The inlet 3 and the outlet 5 are arranged in the median plane.  A deflector 7 is arranged <PICT:0497203/III/1> <PICT:0497203/III/2> opposite the inlet, and a nozzle 6 projects inwardly from the outlet.  The nozzle is flared in the horizontal plane.  Two vents 11 are provided, which operate according to the position of the aeroplane.  Each vent is controlled by a float-operated valve 13, surrounded by a wire gauze screen 24.  The air is discharged to a port 17 through passages 16 controlled by spring-pressed valves 20.  The valves are housed in a cylindrical weight 23, the lower passage being closed, as shown.
Patent GB-544743-A (GB)
Title: Improvements relating to the manufacture of alternating current dry rectifiers
IPC: H01L29/00
Filed: 1940-10-24
Abstract: 544,743. Asymmetrically-conducting resistances. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., ROWLEY, C. A., and JENKINS, A. Oct. 24, 1940, No. 15630. [Class 37] Elements of a dry-rectifier are punched from a large composite sheet comprising base 1 and applied coatings 2, 3 and the edges of the elements are then cut or ground to remove a strip of the coatings, preferably in bevel form to prevent risk of short-circuiting. Specification 529,792 is referred to.
Patent GB-199930-A (GB)
Title: Improvements in and relating to bowls for playing games
IPC: A63B37/00
Filed: 1922-06-07
Abstract: 199,930. McKinnon, J. June 7, 1922. Balls.-Playing bowls for use upon wooden or concrete floors &c. are provided with pneumatic tyres d of rubber, felt, &c. According to the Provisional Specification, the tyre may consist of a band moulded to the curvature of the bowl.
Patent GB-1308837-A (GB)
Title: Process and device for the stretching of plastics sheet
IPC: B29C55/08
Filed: 1971-05-19
Abstract: 1308837 Stretching sheets FARBWERKE HOECHST AG 19 May 1971 [19 May 1970] 15903/71 Heading B5A An apparatus for stretching plastics sheets, e.g. formed from heated P.V.C., polyolefin, or polyester, comprises a pair of rotary discs 4 which contact the edges of the sheet in a manner which excludes air from between the contacting surfaces. The sheet is fed between rollers 2, 3 before the edges are pressed on to the conical or rounded surfaces of the discs. The edges are pressed on to the discs by free running or driven rollers 5 and adhere thereto by atmospheric pressure, due to the absence of any air between the contacting surfaces. The discs 4 can be driven or free running, and their angles or distance apart can be varied, so that the sheet is stretched transversely, and/or longitudinally. The sheet is finally drawn on to take up rolls 6 and 7, which can be arranged to rotate at a greater speed than the rolls 2, 3. The sheet can also be heated by hot gas jets 9 or electric heaters. In Figs. 3 and 4, not shown the sheet is supported between the discs by rollers (10) or a plate (11). Two or more devices can be connected in series.
Patent GB-770618-A (GB)
Title: Improvements in or relating to nitrogen-containing organic compounds
IPC: C07C201/06
Filed: 1953-06-09
Abstract: Polyhalogenonitro compounds of formula CFXYCRR1NO2 where R and R1 are fluorine, chlorine, bromine, or alkyl, fluoro-, perfluoro-, chloro- and bromo-alkyl, each having not more than 20 carbon atoms, or perfluorocycloalkyl having not more than 6 carbon atoms in the ring, X is fluorine, chlorine or bromine, and Y is chlorine or bromine, are prepared by reacting a nitrosyl halide of formula NOY, or a nitryl halide of formula NO2Y, with a halogenoolefin of formula RR1C=CFX; when using a nitryl halide, compounds where R and R1 are hydrogen may be obtained.  In examples, nitrosyl chloride is reacted with (1) tetrafluoroethylene to obtain 1-chlorotetrafluoro-2-nitroethane; (2) with chlorotrifluoroethylene to obtain 1,2-dichloro-trifluoro-2-nitroethane; (3) with 1,1-dichlorodifluoroethylene to obtain 1,1,2 - trichloro - difluoro - 1 - nitroethane; (4) nitrosyl bromide is reacted with tetrafluoroethylene to obtain 1-bromotetrafluoro-2-nitroethane; (5) nitryl chloride is reacted with tetrafluoroethylene to obtain 1-chlorotetrafluoro-2-nitroethane.  A list of compounds obtained by the method of the invention is given.  Specification 770,619 is referred to.
Patent GB-541140-A (GB)
Title: Improvements in the preparation of purified latex and of rubber therefrom
IPC: C08C1/04
Filed: 1940-11-01
Abstract: 541,140. Purifying rubber latex. BRITISH RUBBER PRODUCERS RESEARCH ASSOCIATION. Nov. 1, 1940, No. 15984. [Class 70] In purifying latex of rubber, gutta-percha, balata &c. by alkali treatment, metallic and other compounds precipitated by the alkali and forming particles of greater specific gravity than the liquid are removed by settling or by centrifuging of the liquid while hot. In treating as described in Specification 521,436 by boiling with alkali, separation by centrifuging is carried out before the process of dialysis. The centrifuging may be carried out in an atmosphere of nitrogen or other inert gas. Reference has been directed by the Comptroller to Specification 542,110.
Patent GB-953917-A (GB)
Title: Improvements relating to semiconductor circuits
IPC: H01L27/07
Filed: 1960-05-06
Abstract: 953,917. Semi-conductor devices; circuit assemblies. TEXAS INSTRUMENTS Inc. May 6, 1960 [May 6, 1959], No. 16067/60. Headings H1K and H1R. [Also in Division H3] All the components of one half of an Eccles Jordan circuit (Fig. 1) are formed at least in part by monocrystalline semiconductor material and are disposed on an insulating substrate. Such an arrangement, shown in Fig. 2, may be formed by attaching a monocrystalline N-type wafer to a ceramic substrate over ohmic contact strips 44, 48, 50, 52, 54, 56, 58, using a cement the thermal expansion coefficient of which is matched to that of the monocrystal and ceramic. P-type layers are formed in selected parts of the wafer by acceptor diffusion and N- type inclusions formed in the P-layer by donordiffusion. Subsequent or prior to the diffusion steps the wafer is subdivided into four sections 36, 38, 40, 42 by etching which may also if necessary remove unwanted parts of the diffused layers and reduce the various sections of wafer to thicknesses appropriate to their functions as resistors. Section 42 comprises resistor region R 1  integral with the collector zone of NPN mesa transistor T 1 , Section 40 comprises PN mesa diode D 2 , and section 38 comprises mesa diode D 1  and capacitor C 2 . The latter comprises a silicon oxide layer 60 forming the dielectric between the N type wafer and an evaporated electrode 32 of aluminium or gold. Section 36 comprises a diffused P-type region 62 overlying the entire length of resistor region R 2  and part of region R 3 . This region 62 to which a vapour deposited layer of aluminium or gold is alloyed to form an ohmic contact 26 forms a PN junction with regions R 2  and R 3 . In operation this junction is reverse biased and its distributed capacitance constitutes C 1  in the Fig. 1 circuit. A vapour deposited emitter contact 16 and a similarly deposited base contact 14 which is allowed through the emitter zone and subsequently isolated therefrom by etching are provided on transistor T 1  and the circuit completed by the wiring shown. In an alternative arrangement the various sections may be formed individually and subsequently stuck to the substrate. A further possibility is to form the sections as N-type zones by donordiffusion into an intrinsic wafer in which case a separate substrate is dispensed with. Specifications 945,734 and 945,735 are referred to.
Patent GB-1168258-A (GB)
Title: Di(Secondary Hydrocarbyl Substituted) Hydroquinones
IPC: C11B5/00
Filed: 1966-09-23
Abstract: 1,168,258. Di-(secondary hydrocarbyl substituted) hydroquinones. UNIROYAL Inc. 23 Sept., 1966 [8 Nov., 1965], No. 16155/68. Divided out of 1,168,256. Heading C2C. The invention comprises di-substituted hydroquinones having the formula wherein R<SP>1</SP> is a secondary alkyl group having at least 14 carbon atoms and R<SP>2</SP> is a secondary alkyl group having at least 14 carbon atoms, a terpenyl group, or an alpha-alkyl substituted arylmethyl group. The secondary alkyl groups may conveniently be C 14 -C 18  or C 16 -C 20  mixed secondary alkyl groups. The products may be obtained by reacting hydroquinone with an alpha-olefin having at least 14 carbon atoms or with a mixture of such alpha olefins and optionally also where necessary with an aryl alpha alkene, e.g. styrene or alpha methyl styrene or a terpene. The reaction is preferably effected in the presence of a catalyst, e.g. boron trifluoride etherate or acid activated montmorillonite clay. Several terpenes are specified including turpentine and dipentene.
Patent GB-242325-A (GB)
Title: Improvements in or relating to control apparatus for mine cage and similar brakes
IPC: B66B5/08
Filed: 1924-07-05
Abstract: 242,325. Vickers, Ltd., and Ogden, A. July 5, 1924. Magnetically-actuated valves.-The position of a rotary valve adapted to control communication between two pipes K, K<1> may be adjusted independently of the weighted valve-operating lever e<1>, which is normally held out of action by the engagement of an arm e<3> thereon with a shutter g<3> on an arm G<3> normally held raised by an electromagnet G<1>. The lever e<1> is provided with an upward extension e<1x> which engages with an arm e<x> on the valve spindle by means of a screw adjustment e<xx>, so that the initial position of the arm e<x> may be varied independently of that of the arm e<1x>. Specification 244,029, [Class 80 (ii), Gearing, Variable-speed &c.], is referred to.
Patent GB-157685-A (GB)
Title: Improvements in and relating to boxes, cases, and the like
IPC: B65D55/10
Filed: 1920-06-15
Abstract: 157,685. Slaughter, C. H., and Rawle, F. R. G. June 15,1920. Lids.-The lid a of a box, case, &c. is provided with overhanging battens c which rest on opposite - sides of the box and which form, with the adjacent sides e, open-topped grooves f. The lid is secured to the box by dowels &c. g which traverse the grooves and engage holes in the sides e and battens c, the dowels being accessible at the grooves f for easy breaking-down to open the box. The dowels may be an easy fit in the sides e and batten c, split pins &c. passing through the dowels in the grooves f serving to lock them and providing means for easily opening the box. The dowels may be sealed.
Patent GB-1356740-A (GB)
Title: Multiple friction clutch
IPC: F16D13/38
Filed: 1972-04-07
Abstract: 1356740 Friction clutches DR ING hcF PORSCHE AG 7 April 1972 [17 May 1971] 16225/72 Heading F2C In a friction clutch for a motor vehicle wherein driven discs 13, 11 are clamped between a flywheel 2, intermediate plate 12 and presser plate 10 by a diaphragm spring 8 which reacts on a clutch cover 1 fast with the flywheel 2, the presser plate 10 and intermediate plate 12 are connected to the clutch cover by pins 15 rotatably mounted in bores 20 in the flywheel 2 and clutch cover 1 and having guide surfaces 18 engaging slots 17 in radial lugs 16 projecting from the intermediate and presser plates. Axial webs 22 space the clutch cover 1 from the flywheel 2 and a lip 23 centres the clutch cover on the flywheel. Spaces between the webs 22 facilitate the flow of cooling air through the clutch.