baber/WOPTO huggingface dataset:
Patent GB-460121-A (GB)
Title: Brake particularly for motor vehicles and the like
IPC: F16D65/22
Filed: 1936-06-12
Abstract: 460,121. Fluid - pressure - operated brakes. OETIKER, E., (trading as OETIKER & CO. MOTORWAGENFABRIK). June 12, 1936, No. 16479. Convention date, June 13, 1935. [Class 103 (i)] In fluid-pressure operated brake of the kind comprising an inflatable annular tube adapted to press friction elements against a brake drum, an inflatable tube 3 is arranged within a carrier 2 which is secured to the wheel axle 1 and is formed with radially projecting parts 9 of circular cross-section acting as abutments for friction elements 8 surrounding the tube 3. Each element 8 comprises a friction lining carried by a resilient steel band which is anchored to the carrier 2 at one end 10<11> and secured to a release spring 12 at the other end. When pressure fluid is supplied to the tube 3 through passage 4, the friction elements are expanded against the drum 5 which has a corresponding cross-section and is secured to the wheel 6.
Patent GB-580080-A (GB)
Title: Improvements in thermionic valves adapted to operate at very high frequencies
IPC: H01J19/42
Filed: 1940-11-14
Abstract: 580,080. Thermionic valves. M-O VALVE CO., Ltd., and WARREN, G. W. Nov. 14, 1940, No. 16494. [Class 39 (i)] The method of manufacturing a thermionic valve of the type adapted to operate at frequencies of 1000 Mc. and over comprises the following steps in the following order : (1) affixing the control-grid structure 3, Fig. 1, to a support 2 rigidly connected to a part of the envelope 1 ; (2) adjusting the anode 7 so that it is properly located relatively to the grid, and affixing it to a second support 9 connected rigidly to a part of the envelope ; (3) affixing to the anode an insulating member 17, 18 carrying the cathode. Supports 2 and 9 may be common near the envelope, so long as the parts adjacent the grid and anode are independent. Preferably, the cathode is accurately located on the insulating member before assembly. In the form shown, the anode is a nickel disc 19, Fig. 2, pierced by a central hole and provided near the outer edge with a nickel rim 6. The grid is a'ring of wires connecting an annulus 4, Fig. 3, and a cap 5 fixed to support 2. The cathode is a short activated cylinder 11, Fig. 4, carried on a flanged member 13, constituting one lead of the heater 15. The flange is gripped between two mica discs 17, 18 which rest on the rim 6 and are accurately located by pins 20 passing through them. Internal and external cylinders 21, 22 form the outer conductor of a coaxial line of which the grid lead is the inner conductor. Dimensions of a typical valve working up to 1500 Mc. are given.
Patent GB-1188797-A (GB)
Title: Semiconductor Manufacture.
IPC: H01L29/00
Filed: 1967-04-11
Abstract: 1,188,797. Semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 11 April, 1967 [14 April, 1966], No. 16564/67. Heading H1K. A mask 26 of a photo-hardening lacquer separates two regions 28, 29 of a semi-conductor surface which are subjected to ion or electron bombardment 27 to render them more strongly conductive, and electrodes are then applied to the two regions 28, 29. In the manufacture of an insulated-gate field effect transistor an anodized (and hence insulated) Al strip 22 is deposited on a glass substrate 21, and a 0À1Á thick layer 24 of N-type CdS vapour is deposited to cover part of the Al strip 22, but leaving part of it exposed. A layer of photo-lacquer is then applied, which after exposure is limited to the region 26. Ion bombardment is then carried out, and in this case it may produce inversion of conductivity type in the regions 28, 29, as well as enhanced conductivity, forming source and drain regions. A 500Š thick Au layer 30 is then vapour deposited over the entire surface, and is removed from the regions other than at the source and drain electrodes by dissolution of the mask 26. Tin oxide may alternatively be used as the semi-conductor, in which case the photo-lacquer is exposed through the substrate 21 and body 24. A second embodiment is described in which a photo-resistor of N-type CdS containing 10<SP>-3</SP>- 10<SP>-4</SP> wt. per cent of Cu and Ga is provided with Au electrodes by the method of the invention. The semi-conductor material may also comprise CdSe, ZnS or ZnSe, or a mixture of these materials, and the electrodes may be made of Pt or a Ni-Cr alloy. The electrodes may alternatively be applied by thermo-compression bonding.
Patent GB-937802-A (GB)
Title: New or improved method of and apparatus for measuring the viscosity of liquids
IPC: G01N11/12
Filed: 1962-05-01
Abstract: 937,802. Viscometers. F. VOGTLE, G. VOGTLE, and F. VOGTLE. May 1, 1962 [May 2, 1961], No. 16672/62. Class 106 (2). A viscometer comprises a braking disc 13 immersed at a standard depth in the testliquid and rotatably driven by an internallythreaded weight 3 falling a fixed height on a threaded spindle 1. The latter is rotated in an opposite sense to that of the falling body, the relative speeds of rotation varying (to keep the total angular momentum zero) with the viscous drag on the disc 13. Thus the total angular movement of spindle 1, together with shaft 12 and disc 13, is a measure of the viscosity and is indicated on a scale drum 7 (Fig. 5), mounted on and rotating with spindle 1. The falling body 3 is held in its initial position by a manually releasable magnetic catch and is arrested at the end of its fall by a resilient stop 17. The shaft 12 houses a thermometer 19 and is releasably coupled to the spindle 1 by magnets 11. Disc 13 may be replaced by a ball or cylinder. The body 3 may be returned to its initial position by mechanical lifting means, compressed air from below or simply by inverting the apparatus.
Patent GB-552730-A (GB)
Title: Improvements relating to road-vehicle wheels and tyres
IPC: B60B21/02
Filed: 1941-12-29
Abstract: 552,730. Wheel tyres. ROVER CO., Ltd., and IVERSEN, P. A., SCOTT-. Dec. 29, 1941, No. 16722. [Class 144 (ii)] A road wheel carrying a large section low pressure tyre 18 of symmetrical section is provided with an inside rim flange 11b extending radially beyond the outside rim flange 16 to give side support to the tyre and prevent wobbling. The flange 11b may be reinforced by a flange 12a of the wheel body 12. The flange 11b may be welded or bolted to a symmetrical rim. The tyres may be employed on a vehicle having reduced spring suspension for the chassis.
Patent GB-569537-A (GB)
Title: Improvements relating to pre-stressed concrete
IPC: B28B23/04
Filed: 1943-10-13
Abstract: 569,537. Reinforced concrete. STENT PRECAST CONCRETE, Ltd., and STENT, D. H. Oct. 13, 1943, No. 16779. [Class 20 (iv)] The ends of the stretched wires b for prestressed concrete members are wrapped around a member c and are clamped between that member and a surface on the means stretching the reinforcement. In the construction shown, both ends of the wire are wrapped around the left-hand member c and are clamped in position by a washer h on a bolt d passing through the member and through the end wall a' of the mould a. The bolthead d<1> bears on a crosshead f which is forced away from the mould by hydraulic rams e during the tensioning operation. The tension is maintained by tightening up a nut g. When the concrete has set the bolt d and a similar bolt engaging the other crosshead are removed and the holes formed are plugged with wet concrete. In a modification the member c is of half-tubular section and the washer h is semi-circular in section, and in other modifications the member c has a groove for the reception of the wires or rods b. In the latter modifications the hole in member e for receiving bolt d is tapered to permit the member to take up small differences in lengths of wires applied thereto, the wires having been pre-bent to their looped form. In the drawing, each member c carries two wires b, one on each side of the bolt, and the mould contains two sets of such pairs of wires. In a modification, Fig. 3 (not shown) one end of each wire is clamped to one member c and the other end to the opposite member. According to a further modification one or more pre-cast concrete units are inserted between the anchoring devices and stretch them apart on partial release of the stretched reinforcement. Such pre-formed struts may be more or less tubular in form and are inserted dry, being amplified by adding wet concrete or grouting to embed the stretched reinforcements.
Patent GB-133765-A (GB)
Title: A New or Improved Apparatus for Spreading Tar and other Liquids and Sand or Grit on Roads and other Surfaces.
Inventor: AMES RICHARD
IPC: E01C19/21
Filed: 1918-10-15
Abstract: 133,765. Ames, R. Oct. 15, 1918. Surface treatment; cauldrons.-Relates to combined road tarring and sanding machines, and consists in locating a sandhopper 32, Fig. 1, which includes an agitating-device 38, 39 driven from the vehicle wheel-axle, within the tar-container 1, so that the sand or grit is heated by the hot tar. The machine also comprises a rotary road-sweeping brush 19, in the rear of which is a perforated air-blast pipe 30 to blow residual dust from the road surface, tar-spraying nozzles 11 and grit-distributing nozzles 35 of the kind described in Specification 132,065, and a lateral air-blast pipe 50 to re-dust on to the tarred surface the sweepings left at the side of the brush 19. The air blast to the pipes 30, 50 and to the nozzles 11, 35 is provided by a blower 16, Fig. 3, through a pipe system 18, 14, 31, 51, 36. The sand-hopper may be W-shaped and extend the length of the tar-container, instead of being conical as shown. In this case, the agitator comprises two longitudinal worm conveyers. The valves controlling the tar supply may be operated by a centrifugal governor driven from the live-axle of the road wheels 4. The Provisional Specification also describes a small rotary side brush as a substitute for the air-blast pipe 50.
Patent GB-120626-A (GB)
Title: Apparatus for Vaporizing Hydro-carbon Oils.
Inventor: FORWARD CHAUNCEY B
IPC: C10G7/00
Filed: 1917-11-15
Abstract: 120,626. Forward, C. B. Nov. 15, 1917. R e t o r t furnaces.-Oils are vaporized or gasified by injecting oil vapour and steam into one of three tubes which are connected together and are heated in a furnace, the tube, being surrounded. by outer tubes which contain superheated steam. The vaporizing tubes are connected by U- bends arranged in an air-tight manner, and the outer and inner tubes are connected together in a manner which permits of unequal expansion of the tubes without less of air-tightness in the connexion. The vaporizing tubes a, b, c, are arranged in a furnace F heated by a burner 9<a> supplied with oil-vapour and steam. Each tube a, b, c is formed of an inner tube 2, and an outer tube 3 which extends just outside the furnace where it terminates in a disk 6, which is bolted in an airtight manner to disks on sleeves 8 which are packed on their undersides and are bolted to collars 10. Tile tubes 3 are capable of sliding on rollers 12. U-bends d, d<1> connect the inner tubes 2, and superheated steam is fed to the spaces between the tubes 2, 3, from tubes 16 arranged inside the furnace and connected to a boiler and to pipes with control cocks which connect to each tube a, b, c. The tubes 16 are accessible for cleaning &c. by removal of a U-bend 17 arranged outside the furnace. The oil is supplied under pressure to a superheating-tube 32 surrounded by a steam-tube 33 and packed outside with asbestos, the vapour passing from the tube 32 to the atomizer 40 which is supplied also with superheated steam from the .superheater by a pipe 38. The final .product of the apparatus is carried away by a pipe 5 which leads the gas or vapour to a condenser.
Patent GB-1319022-A (GB)
Title: Lift vehicles
IPC: B66F9/075
Filed: 1971-05-25
Abstract: 1319022 Automatic warehouses CLARK EQUIPMENT CO 25 May 1971 [28 May 1970] 16853/71 Heading B8E The carriage 24 of a stacker truck 12, Fig. 1, is arrested as it rises to a storage location at one or other of a pair of upper and lower positions depending on whether goods are being put into or removed from the particular storage location. If goods are to be removed, the carriage stops at the lower of the two positions and subsequently rises further after the lifting platform has been extended under the goods. Transducers which comprise reed switches 56, 62, 66, 70, Fig. 2, associated with permanent magnets 54, 60, 64, 68, are mounted on the carriage 24, and these co-operate with address means on the mast of the stacker. The address means comprise vanes 74, 76, Fig. 3, which pass between the magnets and the reed switches, thereby operating the latter to stop the carriage at the appropriate position as determined by the command instructions.
Patent GB-736378-A (GB)
Title: Improvements in or relating to organosilicon water-repellent compositions
IPC: C14C9/00
Filed: 1953-06-18
Abstract: A composition, for waterproofing leather, (see Group VIII), comprises a mixture of (1) 15 to 50 per cent (by weight) of Ti(OR)4 or an aliphatic hydrocarbon-soluble partial hydrolysate thereof in which R is an aliphatic hydrocarbon radical having less than 13 carbon atoms or a hydroxylated aliphatic hydrocarbon radical having less than 13 carbon atoms and containing less than 4 hydroxy radicals; (2) 5 to 70 per cent of a copolymer composed of trimethylsiloxane and SiO2 units, the units being in such proportion that CH3 : Si ratio is from 1.0 : 1 to 2.5 : 1; and (3) 15 to 80 per cent of a polysiloxane of the formula R1nSiO4-n, where R1 is an alkyl or alkenyl radical having less than 4 carbon atoms, or a monocyclic aryl radical, and n has an average value of 2 to 2.9. The titanium esters specified are those of the above formula wherein R is methyl, ethyl, decyl, octylene glycolyl, 2-ethylhexyl, dodecyl, isopropyl, butyl and b -allylethyl radicals.  The R radicals may be the same or different.  Mixtures of esters may be used.  The copolymer (2) may be made by cohydrolysis of (CH3)3SiX and SiX4, where X is a hydrolysable radical or by the method of Specification 706,719, and the polysiloxane (3) may be, for example, a dimethyl-, vinylmethyl-, phenylethyl-, dipropyl- or methylxenyl-siloxane or any mixture thereof, and may be copolymerized, for example, with trimethyl- or phenylmethyl-siloxane. The compositions may be used in the form of solventless pastes or in solution in non-aromatic solvents such as Stoddard solvent or naphtha mineral spirits, and may contain leather polishing waxes and dyes. Examples are given.ALSO:Titanium esters having the general formula Ti(OR)4, wherein R is the same or different aliphatic hydrocarbon radical having less than 13 carbon atoms or a hydroxylated aliphatic hydrocarbon radical having less than 13 carbon atoms and containing less than 4 OH groups, may be made by ester interchange of a titanium ester such as Ti(OCH3)4 with a higher boiling alcohol, e.g. tetra-(octyleneglycol)titanate is made by reacting octyleneglycol with Ti(OCH3)4 in a molar proportion of 4 : 1.  Other esters specified are tetra-(2-ethyl-hexyl)-, tetra-(isopropyl)-, tetra-(dodecyl)-, tetra-(beta-allylethyl)- and tetra-(butyl)-titanates.
Patent GB-822661-A (GB)
Title: Improvements in or relating to electric lighting fittings
Inventor: HUBBOLD SYDNEY
IPC: F21V31/00
Filed: 1957-05-28
Abstract: 822,661. Electric light fittings. GENERAL ELECTRIC CO. Ltd. Feb. 25, 1958 [May 28, 1957], No. 16918/57. Class 75(4) An electric light fitting for tubular low pressure mercury vapour fluorescent lamps comprises an open-ended tubular body 1 closed at each end by an end cap 2 at least one of which is detachable, means 10 for supporting one or more lamps within the body and a rigid framework 5 attached to and extending over the greater part of the length of the body and having guides 6 on to which a unit supporting the gear 7 for the lamps may be slid, so that it can be withdrawn from the framework by removal of one of the end caps. The framework carries a tube 11 threaded at the ends, on to whch knobs 12 for holding the end caps in position are screwed. Specification 816,207 is referred to.
Patent GB-790438-A (GB)
Title: Improvements in or relating to valve structures for oxygen regulators
IPC: A62B9/02
Filed: 1955-12-14
Abstract: 790,438. Respirators. ARO EQUIPMENT CORPORATION. June 14, 1955 [Nov. 8, 1954], No. 17066/55. Class 81 (2). [Also in Group XXIX] A supply valve in an oxygen demand regulator comprises a diaphragm 16 subjected on its outer face to ambient atmospheric pressure and on its inner face to the pressure in a chamber 24 connected to an aviator's breathing apparatus and a valve disc 34 faced, e.g., with neoprene and urged by a spring 38 on to a removable seat member 28. A spider S having radially disposed webs 46 is a push fit in a bore 50 in the casing 10 and slidably mounts a valve stem 42 engageable by a lever 66 mounted on a fixed pivot 60. The lever 66 through a backing plate 68 engages the diaphragm so that when the aviator inhales the vacuum induced in the chamber 24 causes the diaphragm to move inwards and the stem 42 to unseat the valve to permit the supply of oxygen to the breathing apparatus.
Patent GB-854040-A (GB)
Title: Improvements in or relating to automatic switching arrangements for vacuum pumps
IPC: F04F9/08
Filed: 1959-05-20
Abstract: 854,040. Diffusion pumps. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 20, 1959 [May 23, 1958], No. 17147/59. Class 71. A vacuum pumping apparatus for evacuating gas from vessels 1 comprises a diffusion pump 2 and a fore pump 3. The fore pump has a pressure nozzle 4 which receives a mushroom shaped stopper 5 loaded by a spring 11 and provided with radial ports 9. When the apparatus is started the fore pump expels gas from the vessel 1 through the diffusion pump and the flow of gas is sufficient to raise the stopper 5 which breaks an electrical switch 12 to stop current flowing to the heating element of the diffusion pump and thus no oil vapour is withdrawn. As the amount of gas withdrawn by the fore pump reduces a stage is reached where the stopper falls back and the switch 12 is closed thus supplying current to the heating coil of the diffusion pump which then comes into operation.
Patent GB-1499179-A (GB)
Title: Conference call circuitry for tdm signal exchange
IPC: H04Q11/04
Filed: 1975-04-25
Abstract: 1499179 Automatic exchange systems INTERNATIONAL BUSINESS MACHINES CORP 25 April 1975 [3 June 1974] 17151/75 Heading H4K A compressor circuit for a TDM exchange comprises a low-pass filter circuit, a high-pass filter circuit, and a band shaping circuit connected in series, the input to the low pass filter and the output from the band shaping circuit being coupled via respective electronic switches to a speech bus of the exchange. The wires of subscriber lines are connected via a 2-4 wire converter (not shown) to input terminals 51-58 and to output terminals 82-88. Incoming speech signals are gated via FET's 62-68 in TDM fashion on to a speech bus 60 and speech samples on the bus are gated via FET's 72-78 and sample and hold circuits shown schematically as capacitors to differential amplifiers 202-208 and thence to the respective subscriber lines. The conference circuit comprises a low-pass Tee network filter 122-128 coupled to the input of an integrated circuit differential amplifier 130, the output of which is coupled via a high-pass Tee network filter 132-138 and a further differential amplifier 140 to a Pi network R-C band-shaping filter 142-152. A unity gain differential amplifier 154, associated with diodes 162-168 and resistors 156, 160 for limiting output signal excursions, couples the circuit via FET 114 to the speech bus. The band-shaping filter 142-152 is designed to offset a 2 KHz peak which occurs in the low pass filter response and the high-pass filter compensates for a boosting of low frequency gain which occurs. In operation the incoming speech for each conference is gated to the conference circuit and the low pass filter acts to sum input samples equally no matter how many different samples are received and no matter what the sample timing relationship is. The output of the conference circuit is then sampled for each conferee.
Patent GB-1191373-A (GB)
Title: Improvements in or relating to Methods of Sawing and Apparatus Therefor.
IPC: B23D45/10
Filed: 1968-04-10
Abstract: 1,191,373. Sawing. MAISTNESMAXKT-MEER A.G. 10 April, 1968 [14 April, 1967], No. 17162/68. Heading B5L. A method of sawing comprises sawing at a pair of opposite sides of a workpiece to produce two mutually independent oo-planar cuts, turning the workpiece through 90 degrees about its longitudinal axis, and sawing to produce two further mutually independent cuts each coplanar with the first cuts. Steel slabs which are to be cut to length for feeding to an extrusion press for making seamless steel tube are fed by a roll train 5 to two pairs of saws 6 which effect the first coplanar cuts on opposite sides of the slabs. The cut slabs are transported by the roll train 5 to a device for tilting the slabs through 90 degrees on to a transverse roll train 7 which conveys the slabs to a roll train 8 for feeding to two pairs of saws 9 for effecting the second cuts coplanar with the first. The remaining material between the cuts may be broken or cut by one or more saws, the cut slabs pass to an unloading position 10.
Patent GB-541617-A (GB)
Title: Improvements in or relating to internal shoe drum brakes
IPC: F16D65/14
Filed: 1940-12-02
Abstract: 541,617. Internal shoe drum brakes. AUTOMOTIVE PRODUCTS CO., Ltd., and GATES, G. R. G. Dec. 2, 1940, No. 17167. [Class 103 (i)] Relates to internal shoe drum brakes of the kind in which a pair of shoes has between each pair of their adjacent ends a spreading device and a torque-resisting abutment, the shoes engaging with the abutment at either end, depending upon the direction of drum rotation, and thus both being capable of serving as a leading shoe. The brake is hydraulically operated and the spreading device 10 is a piston-andcylinder acting directly between the shoe ends, the other spreading device 11, as shown for example in Fig. 3, comprises a wedge device with sectors 33, pivoted on a link 32 itself pivoted on a pull-rod 36, acting upon inclines 31 of tappets on the shoe ends under the action of the hydraulic pistons 38 or of a mechanically-operated second pull-rod 47 connected to the first pull-rod 36 through a lost-nut-in device including a coupling- member 44. Each shoe is provided with an end portion 17 adjustable by means of a wedge device 66 actuated by a screw 65; the other end of each shoe carries a pair of strengthening plates 55. The spreading devices may serve as abutments.
Patent GB-1260997-A (GB)
Title: A shutter mechanism
IPC: G03B7/083
Filed: 1970-04-10
Abstract: 1,260,997. Photographic exposure control. HATTORI TOKEITEN K.K. April 10, 1970 [April 11, 1969], No. 17194/70. Heading G2A. A photographic exposure control system having a photo-electrically controlled exposure timing circuit indicates whether the light available for exposure would result in an over or under exposure and whether an exposure if made would result in camera shake. The indicator is a lamp 7 which is lit to successively indicate the two states during movement of the camera release either at different intensities or by being successively covered with different coloured filters. Alternatively, two separate lamps are provided to indicate the two states, Fig. 2 (not shown). As shown, slide switches 16, 17, 18 coupled to the camera release, are moved successively from an initial position a to a position b where lamp 7 is connected in parallel with a transistor 2, if the illumination of photoresistor 3 is above a predetermined value transistor 1 will be conducting and the voltage on the base of transistor 2 will drop to reduce its collector current and cause lamp 7 to be lit. In position c, lamp 7 is connected in the collector circuit of transistor 2, and the voltage on the base of transistor 1 is determined by photo-resistor 3 and the series connection of resistors 9, 10. With low illumination, transistor 1 is non conducting, transistor 2 is conducting and the lamp is lit. Position d corresponds to an exposure time control circuit.