baber/WOPTO huggingface dataset:
Patent GB-328063-A (GB)
Title: Improvements in socket spanners or wrenches and in the manufacture thereof
IPC: B25B13/04
Filed: 1929-02-08
Abstract: 328,063. British Tool & Engineering Co., Ltd., and Jenks, G. C. Feb. 8, 1929. Rigid-jaw wrenches are formed from bars having a sphere on each end by grinding a pair of parallel faces, C, D, (at the required angle to the handle) on the spheres, and cutting a hexagon or other shaped socket, E<1>, into one of the faces, D. A web F is left at the face C, which mav have a hole G in the centre to allow a bolt to pass through. The spherical portion may subsequently be machined into cylindrical shape. Handles.-The ends are set at an angle to the shank.
Patent GB-1457173-A (GB)
Title: Aerial
IPC: H01Q9/28
Filed: 1974-01-30
Abstract: 1457173 Aerials PYE Ltd 30 Jan 1974 04275/74 Heading H4A An aerial comprises two opposed, spaced, electrically conductive surfaces 1, 2 between which an inductor 4 and a capacitor 5 are electrically connected in parallel to form a resonant circuit, the maximum dimension of each surface and the separation of the surfaces each being less than one quarter of the wavelength at the resonant frequency of the aerial, and the inductor being tapped at 9 for coupling R.F. energy to and from the aerial. As described, the two surfaces are flat, parallel and aligned sheets. The sheet 1 may be integral with, or extended from, the chassis 3 of a transmitter or receiver. Alternatively, it may be connected to an earth plane or conductor on a printed circuit board carrying radio components. The sheet 2 may be a metal plate or a piece of copper clad laminate as used for printed circuit boards. A capacitor 5 provides mechanical support for the sheet 2 and is variable by means of a screw 6. An inductor 4 is in the form of a hairpin-shaped length of wire, but may alternatively be provided as a conductive track on a printed circuit board. The inner conductor 7 of a coaxial cable 8 forming a feed to a radio circuit passes through an aperture in the sheet 1 and taps the inductor 4 at a point 9.
Patent GB-1028956-A (GB)
Title: Semiconductor devices
Inventor: CULLIS ROGER
IPC: H01L29/00
Filed: 1965-02-01
Abstract: 1,028,956. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. Feb. 1, 1965, No. 4289/65. Heading H1K. The surface breakdown voltage of a PN junction is increased by increasing the width of the depletion layer at the surface by surrounding the region enclosed by the junction with a region of the same conductivity type as the enclosed region but having a lower impurity concentration than the other region. A transistor, Fig. 2d, is produced by depositing on an N+-type silicon substrate 11 an epitaxial N-type layer 12 and an epitaxial P-type layer 13 having a lower impurity concentration than layer 12. The surface of the wafer is masked by oxidizing and using a photolithographic technique and boron is diffused in to produce P-type base region 15. A second diffusion process using phosphorus produces N-type regions 16 and 17. Region 16 is the emitter region and region 17 isolates a portion of P-type layer 13 surrounding P-type region 15. Aluminium contacts 18 are applied to the base and emitter regions 15 and 16. A diode may be produced by omitting emitter region 16. An SCR, Fig. 3 (not shown), is produced by depositing on a low resistivity substrate 21 of one conductivity type an epitaxial layer 22 of the opposite type and an epitaxial layer 23 of the one type but having a lower impurity concentration than layer 22. An annular region 24 and a base region 25, both of the one type, are diffused into the wafer and followed by the simultaneous diffusion of cathode region 27 and isolating region 26, both of the opposite type. Certain of the diffused regions in any of the embodiments may alternatively be produced by etching a recess and epitaxially depositing semi-conductor material in this recess.
Patent GB-197413-A (GB)
Title: Improvements in and relating to stools
IPC: A47C9/10
Filed: 1922-02-14
Abstract: 197,413. Simmons, F. Feb. 14, 1922. Tripod and like stands.-A folding-stool comprises a member 10 having lateral tapered lugs 16 to each of which are pivoted at 24 a leg 18 and an arm 25. The legs and arms are of U-shape in cross section, the outward motion of the legs being limited by the lugs 16 and the upward motion of the arms being limited by their contact with the legs 18.
Patent GB-1442536-A (GB)
Title: Process for the preparation of alpha,ypsilon-diethylenic ketones
IPC: C07C49/203
Filed: 1974-01-30
Abstract: 1442536 A process for the preparation of α,γ-diethylenic ketones SOC DES USINES CHIMIQUES RHONE-POULENC 30 Jan 1974 [1 Feb 1973 (3)] 04340/74 Heading C2C The invention comprises a process for preparing α,γ-diethylenic ketones which comprises reacting a tertiary acetylenic alcohol with an alk-2-en-2-yl alkyl ether at not more than 150‹ C. in the presence of, as catalyst, cupric sulphate, cupric nitrate or a complex of a metal salt and an amine. The process of the invention is of particular value in the synthesis of cis-#<SP>3</SP>- pseudoionones and cis-#<SP>3</SP>-methyl pseudoionones by reaction of dehydrolinalool or an alkyl or alkenyl homologue thereof with isopropenyl or isobutenyl alkyl ether at about 125‹ C. and the invention also comprises cis-#<SP>3</SP>- trans-#<SP>5</SP>-pseudoionone and its 1-, 3- and 7- methyl homologues. Complexes of pyridine, quinoline, aniline and diethyl, triethyl and n-propylamine with CuSO 4 , CU(NO 3 ) 2 9H 2 O; CuCl 2 , CuSeO 4 , Cu(NO 3 ) 2 3H 2 O, Cu(BF 4 ) 2  and AgNO 3  are prepared by reacting said components in a solvent and optionally adding methanol to precipitate the complex.
Patent GB-156428-A (GB)
Title: Improvements in burners for liquid fuel
IPC: F23D11/10
Filed: 1920-02-13
Abstract: 156,428. Hooper, E., and Weyman, J. E. Feb. 13, 1920. Actuating-mechanism. - The stem H of a needle-valve for controlling the supply of oil to a spray-burner A projects from the body of the burner and has collars K which engage with a lever I pivoted at J, by means of which lever the valve may be rapidly operated. Fine adjustment is provided by means of a micrometer-screw L having a hooked-head M which may be engaged with the end of the lever I when such adjustment is required.
Patent GB-179639-A (GB)
Title: Improvements in and relating to recuperators for use in connection with furnaces
IPC: F28F21/04
Filed: 1921-02-07
Abstract: 179,639. Faþoneisen - Walzwerk L. Mannstaedt et Cie, Akt.-Ges., and Bansen, H. Feb. 7, 1921. Regenerators.-In a regenerator of the kind in which rows of horizontal waste gas flues are surrounded by top or bottom and lateral air flues, partitions b, Figs. 1 and 2, are arranged at the angles of the waste gas flues a and provided at the ends with gaps so that the air entering at I passes in sequence through the bottom or top flues c and lateral flues d. Direct connection of the lateral flues with one another is prevented by stop plates t, m. Waste gases entering at i pass through the flues a and the connecting-flues. which are provided with wedge-shaped bricks k adapted to be readily removed for repairs and which ensure the smooth flow of the gases at their turning points. The flues may be provided internally with blocks n to increase the speed of the gases and to improve the transfer of heat. Fig. 4 shows a modification in which the partitions consist of two longitudinal plates b<1>, b<2> separating the air flues c and a cover-plate o separating the lateral flues d. Plates p, g, Figs. 6 and 7, are provided at the points where the top or bottom and lateral flues communicate to ensure the proper sequence in the flow of the air through the flues. In the modification shown in Fig. 9, the waste-gas flues are formed by lateral plates a<2> attached by tongue-and-groove joints to top and bottom plates a<1>, which are provided with ledges at b<3> to form the partitions between the air flues. The partitions are cut away as shown to form connections between the flues c, d. Several of the top or bottom flues and the lateral flues may be grouped together in parallel and where necessary the top or bottom flues and lateral flues may communicate, as shown in Fig. 11, by providing the necessary gaps in the ledges b<3>. Fig. 12 shows the manner in which the lateral flues only arc arranged to comunicate with one another. The ledges b<3> of the top and bottom plates a' may be bevelled, as shown in Fig. 13, to facilitate fitting, or may be provided on the top or bottom plates only instead of on both.
Patent GB-1570856-A (GB)
Title: Method of growing gallium arsenide crystals
IPC: C30B29/42
Filed: 1977-02-03
Abstract: A method of growing gallium arsenide crystals obtained by reaction of a first gaseous phase containing hydrogen and arsenic trichloride and a liquid gallium phase, in which the reaction forms a second gaseous phase from which gallium arsenide is deposited in such circumstances that the molar fraction of arsenic trichloride is larger than 2x10-2 and is preferably between 2x10-2 and 10-1.
Patent GB-210993-A (GB)
Title: Improvements in and relating to clothes racks, wardrobes and the like
IPC: A47G25/06
Filed: 1923-02-15
Abstract: 210,993. Sandford, L. G. Feb, 15, 1923. Garment racks.-A folding garment rack comprises a frame a<2>, with a number of parallel bars a<1>, pivoted between side brackets b connected' by a cross piece b<1> by which the device is secured to a door &c. A cross bar b<3> between the bracket b forms a stop to maintain the frame in a horizontal position. The front member a of the frame has attached thereon a curtain d to the free end of which is attached a board or frame d<1> arranged so that t h e curtain completely covers the garments when the frame is in a vertical position where it may be retained by a catch &c. The device is preferably supported by hooks engaging the bar b<1> and provided with teeth &c. pressed into the top edge of the door &c.
Patent GB-979921-A (GB)
Title: Improved flame responsive fuel control apparatus
IPC: F23N5/08
Filed: 1962-02-06
Abstract: 979,921. Controlling burners. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 6, 1962 [March 29, 1961], No. 4537/62. Heading F4T. [Also in Divisions G1 and G4] A fluctuation is imposed on the fuel or air supply to each of a number of burners 10-1, 10-2... 10-N by modulating units 20 each giving a unique frequency of fluctuation and the light from the burner flames is sensed by a photo-cell or photo-cells the output of which is fed to a series of A.C. filters 28, each filter being associated with one burner and passing only signals which have the frequency of that burner flame. The current passed by each filter holds open a spring- loaded solenoid valve 16 in the corresponding fuel supply. A single photocell 24 may be provided or there may be a plurality of photo-cells each connected to one or more filters. Each modulator 20, at which fuel and air are mixed, may comprise a fuel pump or a blower driven through bevel gears by a D.C. motor to which a fluctuating voltage is supplied, a butterfly valve rotated in the fuel supply duct by a motor, or, in in the case of a burner in which fuel is entrained in an air stream by an induction effect, a butterfly valve rotated in the air supply duct. Alternatively, in the latter type of burner a turned pipe may extend from the air supply duct and a portion of the air is directed into the pipe by a reed to give a fluctuation to the air supply corresponding to the resonant frequency of the pipe.
Patent GB-438352-A (GB)
Title: Synchronous motor arrangement
IPC: H02K19/10
Filed: 1934-02-12
Abstract: 438,352. Motors. BEER, P. F., 88, Duevej, Frederiksberg, near Copenhagen. Feb. 12, 1934, No. 4659. [Class 35] Motors with unwound iron armatures are provided with two field coils, one of which is arranged in the anode circuit of a thermionic valve or valves, while the other is connected to an oscillating circuit which is connected to a grid of the valve and can be tuned to a frequency corresponding to the speed at which the motor is to run. The leads 14 are connected to the field-coil 7 and the anode of the valve 9 and to the cathode of the valve respectively. The coil 8 is connected to the grid 17 of the valve and is shunted by a condenser 10 and adjustable resistances 11 or by an adjustable condenser 16, to form an oscillation circuit. The motor, on being started by hand, runs at a speed corresponding to the frequency of this circuit. The motor can also be made to run at a speed corresponding to the frequency of an external source by connecting this source to a second grid 12 of the valve 9, the oscillation circuit being turned to approximately the frequency of the source.
Patent GB-1079992-A (GB)
Title: Improvements relating to protective apparatus
Inventor: HUTCHINS ROY
IPC: H03K17/82
Filed: 1964-02-04
Abstract: 1,079,992. Circuits employing bi-stable magnetic elements. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 20, 1965 [Feb. 4, 1964], No. 4682/64. Heading H3B. [Also in Division H2] A supervisory circuit comprising a plurality of laddics connected in cascade with the output winding of each laddie (except the last) connected to a control winding of the next laddic in the sequence has a damping winding arranged on limbs carrying a control winding connected to the output winding of the preceding laddie. In Fig. 2 the output winding A of a first laddie is connected through a transistor amplifier, Fig. 3 (not shown), to a control winding B on rung 6 of a second laddic. Each laddie has its own input and reset windings which are energized alternately. When control signals from the system being protected are present on all the control windings 1, 2, 3 of the first laddie output pulses are fed to the winding B on the second laddie. The damping winding or short-circuited winding SS on the same rung as winding B delays the changes in this rung which would occur due to current pulses applied to the input winding of the second laddie and the current pulses through winding B tends to restore any changes. There will therefore be an output from the output winding of the second laddie when input pulses are applied to its input winding. If one of the control signals 1 to 3 fail due to a fault in the equipment being protected so that no output pulses are applied to winding B then output signals from the second laddie will cease after a few cycles due to the reversal of flux in the rung on which winding B is wound.
Patent GB-872967-A (GB)
Title: Improvements in and relating to safety device for liquid fuel burners
IPC: F23C99/00
Filed: 1960-02-10
Abstract: 872,967. Liquid fuel burners. WEBASTOWERK G.m.b.H. Feb. 10, 1960 [Feb. 27, 1959], No. 4692/60. Class 75(1). [Also in Group XXXVI] A vapour burner comprises an electromagnetic fuel valve (not shown) energized by a thermocouple located inside the burner casing 9 and provided with an apertured tubular screen 14 which directs a cooling current of combustion air on to the cold joint of the thermocouple. The hot joint 12 is disposed outside the screen 14 in the burner flame. The screen 14 is secured to the body of the thermocouple by a nut 15. The thermocouple comprises a constantan wire placed within a tubular element and soldered thereto at one end; the other end of the wire is soldered to an insulated copper wire leading through a copper tube to the electromagnetic fuel valve. The burner comprises an annular vaporizing chamber 5, two vapour discharge nozzles 1 and a slidably-mounted tubular flame guide 17 which has an aperture 20 near the hot joint 12 of the thermocouple and has a tongue 21 interrupting its open front end. At starting the electromagnetic valve is opened by a press button and fuel flows from the nozzles 1 on to the base of the burner casing 9. This fuel is then ignited and heats the vaporizer 5. The electromagnet when energized holds the fuel valve open.
Patent GB-1134327-A (GB)
Title: Improvements relating to dynamo-electric machines
IPC: H02K1/24
Filed: 1966-02-03
Abstract: 1,134,327. Dynamo-electric machines having superconducting windings. SIEMENS-SCHUCKERTWERKE A.G. 3 Feb., 1966 [6 Feb., 1965], No. 4889/66. Heading H2A. The superconducting winding 2 of the rotor 1 of a dynamo-electric machine, e.g. synchronous turbo-generator is held in place by ties 6, and centrifugal forces acting on the winding during operation of the machine are compensated for by magnetic forces between the rotor iron and the winding, resulting from the medium in the slot between the winding and the rotor periphery being non-magnetic. The winding 2 is a 2- or 4-pole exciter winding of superconducting wire in a Cu U-shaped bar 21 in 2-part good heat-conducting supporting bodies 3 around which are wound cooling coils 20 which convey cooling liquid; alternatively, coolant may pass through the bodies 3. Surrounding the coils is pressure-sensitive heatinsulation 5, e.g. crinkled foils disposed in slot bars 4 of which the radially outer and inner parts 19, 18 are respectively non-magnetic and of high saturation induction, e.g. cobaltiron whereby excitation of the winding creates magnetic forces which act radially inwards to provide the compensation. The ties 6 may be secured to the rotor laminated iron at the centre, and accelerating and gravitational forces may be taken up by further ties 23 of nylon filament or stainless steel bar and by distance pieces 39. In other embodiments, Figs. 5 ... 7 (not shown), the ties instead of being radial are disposed polygonally around the axis. The coolant is supplied to and discharged from fixed pipes through labyrinth packings (29, 30), Fig. 8, to concentric shaft cavities 27, 28 having crinkled foil heat insulation 31 and through which pass cables 34, 35 to slip rings 32, 32 cooled by interruption of the heat insulation. The rotor may have a damping winding, and the excitation may be dependent upon the machine speed or the tensile force of the ties and may embody a voltage regulator.
Patent GB-348651-A (GB)
Title: Process of and apparatus for effecting reaction between solids and gases
IPC: B01J8/10
Filed: 1930-02-13
Abstract: Reaction between gases and pulverulent or granular solids are effected by distributing the solid within a loosely packed mass of relatively large, inert bodies such as iron balls, pebbles, brickbats &c. which are maintained in a state of limited relative movement, and passing the reacting gas through the mass, preferably in countercurrent to the solid.  The illustrated apparatus comprises a rotating cylinder 12 almost filled with pebbles &c. 22 as shown in Fig. 2, and provided with annular baffles 14 of sufficient depth to prevent unrestricted flow of gas above the pebbles.  The pulverulent solid is fed in by a conveyer 36 and enters the cylinder between annuli 26 which are sufficiently close together to prevent escape of the pebbles.  At the other end of the cylinder it escapes through a similar device and is lifted by a scoop 56 to the conveyer 60.  The reacting gas is admitted by a pipe 62 and escapes through the tube 34.  The cylinder is partly supported by a bath of molten lead 84 which may serve to heat or cool it or to <PICT:0348651/III/1> <PICT:0348651/III/2> equalize its temperature.  The apparatus may be used for the treatment of an iron sulphide ore with sulphur chloride to form ferrous chloride and free sulphur.  Specification 306,107, [Class 1 (iii), Oxides &c., Metallic], is referred to.
Patent GB-683934-A (GB)
Title: Improvements in the manufacture of collars for human wear
IPC: A41B3/00
Filed: 1951-03-02
Abstract: 683,934. Collars for personal wear. LENZ, R. March 2, 1951, No. 5054/51. Class 141. A collar has a piece of lining material of a shape determining the shape of the finished fold portion covered on one side only with a piece of cover material of similar shape but of sufficient width to enclose one longitudinal edge of the lining and long enough to be doubled over at each end to enclose the ends of the lining and form pockets for the reception of stiffeners. As shown in Fig. 1, the lining 1 and cover material 2 of the fold portion are secured together at the outer edge 3. The material 2 is then folded over this edge and the ends are suitably folded to form the stiffener pockets 13, Fig. 7. The neckband comprises a lining 14 covered on one side and provided with strips of cover material 16 at the front edges. Loops 17 may be provided to retain a necktie or stiffeners. The lining material may have worked in hair-like threads to render it crease resistant.
Patent GB-1463784-A (GB)
Title: Surgical tool for taking biological samples
IPC: A61B1/313
Filed: 1975-02-06
Abstract: 1463784 Biopsy instruments AKADEMIET FOR DE TEKNISKE VIDENSKABER SVEJSECENTRALEN 6 Feb 1975 [6 Feb 1974] 5139/75 Heading A5R A biopsy instrument for taking samples from the interior of a living human or animal body comprises a needle 1 within which is slidably located a tubular knife 2 having a sharpened edge 4, means 5 for guiding light from an external source to the interior body site, means 7 for guiding light reflected from the body site to an external display unit, and ducts 8 for applying a partial vacuum to the body site to cause said knife to slide into abutment with the body site whereby a circular tissue sample can be taken on rotation of the instrument, the sample being retained by means of the applied vacuum. The means 5 comprises a core of light-conducting fibres spaced from the inner wall of the knife and the means 7 comprise spaced bundles of light-conducting fibres positioned between core 5 and knifewall 3, the spaces between the bundles defining the ducts 8.
Patent GB-585557-A (GB)
Title: Improvements in jet propelled aircraft
IPC: F02K1/52
Filed: 1945-03-01
Abstract: 585,557. Propelling aircraft. HAWKER AIRCRAFT, Ltd., and STANBURY, J. V. March 1, 1945, No. 5184. [Class 4] In a jet-propelled aircraft the power unit or units are housed in the fuselage and connected by rearwardly extending divergent jet pipes to jet nozzles located alongside the fuselage and preferably in the neighbourhood of the trailing edges of the wing roots. Fig. shows an arrangement in which a single power unit 12 is located on the axis of the fuselage 14, the jet pipe being divided into two branches 16 terminating in nozzles 18 at the trailing edges 20 of the wing roots. The air inlets 30 are located in the leading edges of the wing roots. In the arrangement according to Fig. 7 two power units 36 are disposed side by side in the fuselage, each being provided with a slightly curved jet pipe 38. According to a further embodiment, Fig. 8 (not shown), the nozzles are located one in the upper surface and the other in the lower surface of the fuselage: Such an arrangement may be combined with that of Fig. 1 or Fig. 7 to provide four nozzles, or the'jet pipe from a single power unit may be divided into three or more branches instead of being bifurcated.