baber/WOPTO huggingface dataset:
Patent GB-847359-A (GB)
Title: Supersonic centripetal compressor
IPC: F04D17/02
Filed: 1956-08-24
Abstract: 847,359. Generating combustion products under pressure. PAULECKA, V. H. Aug. 24, 1956, No. 26012/56. Class 51 (1). [Also in Group XXVI] A toroidal combustion chamber forming part of a jet-propulsion engine (see Group XXVI) extends between, and rotates with, the inner stages of a contra-rotating centripetal compressor and a contra-rotating outward-flow turbine. Wedge-shaped inlet ports 140 for compressed air are intercalated with wedgeshaped discharge ports 148 for the combustion gases. Stiffening ribs 23 extend between the outer wall 2 of the combustion chamber and an air jacket (not shown). A lining 157 of heatresistant alloy is provided. Fuel nozzles 150 are supplied with fuel through pipes 132 and a duct 130 within a compressor shaft, and the cable for the ignition plugs passes through a hollow turbine shaft. In addition to the jacket air, air by-passes the combustion chamber through a duct 85 and also through by-pass ports 161 which give direct access to the discharge ports 148, and ports 167 which give direct communication from the inlet ports 140 to the turbine. Specification 847,360 is referred to.
Patent GB-1393457-A (GB)
Title: Circuit for comparing the period of a recurrent signal with a  predetermined time duration
IPC: G01P3/48
Filed: 1972-06-05
Abstract: 1393457 Frequency detectors COMPTEURS SCHLUMBERGER 5 June 1972 [7 June 1971] 26042/72 Heading H3A In a frequency-sensitive switch, a unijunction 10 produces an output S when a capacitor C has been charged to the threshold of one of the unijunction control terminals E (A), thereby indicating that the frequency of the input pulse E is too low to trigger the unijunction 10 by way of a second control electrode B2 and discharge C before the threshold is reached. An input pulse E turns off normally-conducting transistors 21, 22 to lower the potential of terminal B2 which is the second base if a normal unijunction is used, or it is the gate if a programmable unijunction is used. If E turns on the unijunction 10 before C reaches the threshold, an output pulse at B1 will be produced but is suppressed by a transistor 23, turned on by the complement E<SP>1</SP> of the input signal E. C is thus always discharged before the unijunction threshold (at E, A), can be reached as long as the frequency of the input signal E is higher than a predetermined value. By discharging C through the unijunction itself, the voltage left on C from which it has to begin charging again is the saturation voltage of the unijunction and as this is related to temperature, automatic compensation of temperature induced variations in the unijunction threshold voltage (at E, A) is assured. To correct for non-linear charging of C through the resistance R a diode D is included, and a parallel potentiometer P adjusts the correction. Alternatively (Fig. 3, not shown), a constant charging current is used.
Patent GB-518882-A (GB)
Title: Apparatus for humidifying and cooling air
IPC: F24F6/06
Filed: 1938-09-06
Abstract: 518,882. Moistening and otherwise treating air. ROBIC, R. A. Sept. 6, 1938, No. 26047. Convention date, Oct. 26, 1937. [Class 55 (ii)] In apparatus of the kind in which air is forced by a fan through the upper part of rotor having its lower.part immersed in water, a rotor R formed of a spiral coil of sheet material, a fan 33 and driving means for the fan and rotor are mounted in a casing- B to form a selfcontained unit. An electric motor 32 mounted on a bracket 28 drives the fan directly and drives the rotor through reduction gear 34 and a clutch. The rotor may consist of a core member 50 in which is wound a spiral coil. of sheet material formed with spring projections as described in Specification 518,961.
Patent GB-1482312-A (GB)
Title: Manhole covers
IPC: E02D29/14
Filed: 1975-06-19
Abstract: 1482312 Manhole covers PONT-A-MOUSSON SA 19 June 1975 [21 June 1974] 26092/75 Heading E1G A manhole cover 2 is secured against rotation by having a bar 3 thereon which engages projections 18 and grooves 17 on a locking element 4 located in a housing 7 on the manhole frame 6. After tightening the cover by rotation in the direction of arrow f, member 4 is located in the housing 7 so as to engage bar 3 which may have a groove 9 and projections 10. The grooves 17 and projections 18 are offset from one side to the other of member 4 so that one or the other side thereof will engage bar 3 with the minimum rotational adjustment of cover 2. Bar 3 may have a single projection (10, Fig. 5, not shown).
Patent GB-190827-A (GB)
Title: Improvements in the driving means of speedometers for use with automobile vehicles
IPC: F16H1/20
Filed: 1921-10-04
Abstract: 190,827. Cooper-Stewart Engineering Co., Ltd., and Wright, A. Oct. 4, 1921. Speed - indicator transmission mechanism. - Transmission mechanism for motor-vehicle instruments comprises a toothed driving wheel b on the Cardan shaft a or other rotating part of the vehicle and a driven toothed wheel e mounted on an arm g adjustable angularly in an extension of a support c borne loosely upon the driving wheel, the arrangement being such as to maintain the wheels in mesh during running. The wheel b is in two parts bolted together and is provided with shoulders b<1> forming bearings for the two-part support c. The support c is slotted to expose the teeth of the driving- wheel b, and the arm g is adjustably mounted by means of a pin g<1> in a split clamping part f<1> of the support c, whereby its inclination may be varied to provide for different sizes of gear wheels and to take up wear. The upper part of the support c is formed as a bridge part c<3> carrying a grease cup c<4>. The support is steadied by a spring k<1> on a rod k clamped to a beam l of the vehicle chassis. The flexible shaft h of the speed indicator may be driven from the wheel 6 by worm gearing enclosed in a casing j carried by the arm g.
Patent GB-702501-A (GB)
Title: Improvements relating to electric plugs
IPC: H01R13/415
Filed: 1951-11-09
Abstract: 702,501. Two-part couplings. NETTLE ACCESSORIES, Ltd., and GARNER, J. A. Nov. 10, 1952 [Nov. 9, 1951], No. 26266/51. Class 38 (1)  A plug connector comprises " live " pins 7 held in holes in a base part 1 by lugs 10 which engage slots 8 adjoining the holes. The earth pin 5 is similarly held by the engagement of a lug 9 in a slot 6.. A cover 2 is screwed on to the base 1 thus clamping the pins in position, the conductors being secured to the pins by means of holes 11 and screws 12. A fibre strip 14 presses the conductors against a serrated surface 15. The lugs may be integral with, or separate from, the pins.
Patent GB-309815-A (GB)
Title: Improvements in and relating to high-pressure boilers generating steam according to the indirect method
IPC: F22B1/18
Filed: 1928-09-13
Abstract: 309,815. Marks, Sir G. C., (Schmidt'sche Heissdampf-Ges.). Sept. 13, 1928. Heating by indirect contact of steam.-In a high-pressure boiler heated by the circulation of steam through coils 4 in the boiler water, the feed supply to the boiler is heated in a heater 9 by steam coils 8 arranged in parallel with the heating coils 4. The heating steam is generated in tubes 1 placed in a furnace and connected to steam and water drums 2, 7. Specification 210,749 is referred to.
Patent GB-787805-A (GB)
Title: Multiple frequency generator
IPC: H03B21/02
Filed: 1954-09-13
Abstract: 787,805. Valve generating circuits. AUTOMATIC ELECTRIC LABORATORIES, Inc. Sept. 13, 1954 [Sept. 28, 1953], No. 26458/54. Class 40 (6). In a multiple-frequency generator, a source 1 of reference frequency (F) is coupled via a seriesresonant circuit 3, 5 to a balanced shunt type modulator 7. To the other diagonals of the modulator there is applied a beat frequency (F-f), where f is a sub-harmonic of F, derived as follows: the modulation products are fed via an optional low-pass filter 11, passing up to (F-2f), to a transformer - coupled amplifier 15 which is stabilized by negative feedback, the input circuit being returned to a resistive tap 17, 19 on the output circuit. The output transformer of the amplifier 15 includes a low-impedance secondary 29 from which each of the desired modulation products is obtained via band-pass filters 31, each filter being followed by an amplifier, e.g. valve 67. Each amplifier 67 has as output circuit a tuned transformer, a coupling being arranged from the secondary 71 to the cathode resistor 73 so as to provide negative feedback. The output transformer of the amplifier 15 also includes a high-impedance secondary 33 from which the subharmonic f is selected by means of a lowpass filter 35. It is applied to a distorting network 37 comprising reversed rectifiers, each of which is provided with a series-connected load resistor with condenser shunt. The distorting network produces a square waveform from which the harmonic nf (=F-f) is selected by a band-pass filter 48. This frequency is amplified in a high-gain resistance-capacity coupled amplifier 51, 59 which feeds a transformer 61. The transformer secondary 63 provides an output (F-f) via a band-pass filter 65 and also the beat frequency for the modulator 7. Other frequencies generated in the modulator may also be taken from the secondary .63; e.g. the frequency 2 (F-f) which is selected by band-pass filter 68. Specifications 670,363 and 762,915, [Group XXXIX], are referred to.
Patent GB-399312-A (GB)
Title: Improvements relating to lamps for cycles and other vehicles and the means for mounting them on such machines or vehicles
IPC: B62J6/00
Filed: 1932-09-23
Abstract: 399,312. Cycle and like lamp mountings. LYCETT, E., Arthur Street, Small Heath, and URRY, F. J., Rose Hill House, Old Warwick Road, Olton, both in Birmingham. Sept. 23, 1932, No. 26459. [Class 75 (iii).] The lamp a is carried by a rubber member c having a head d, e at each end engaging metal plates b, f, or the like attached to the lamp and the machine or vehicle respectively. The member c may be moulded or formed of a number of strands or cords bound with cotton &c. between the heads. As shown, the plates t, f comprise a central ring through which the heads d, e are forced. The inner edges of the rings may be bevelled and the rings may be formed with diametricallyopposite entrance slots, preferably bevelled on one edge, to facilitate insertion of the heads. The Provisional Specification states also that the member c may consist of a laminated block of rubber with spring steel reinforcement between the laminµ.
Patent GB-769715-A (GB)
Title: Improvements relating to the manufacture of dry rectifiers
IPC: H01L21/14
Filed: 1954-09-13
Abstract: 769,715. Semi-conductors. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd., and WALKER, A. H. B. June 22, 1955 [Sept. 13, 1954], No. 26474/54. Class 37. [Also in Group XL (a)] Rectifier elements punched out or otherwise cut from a large sheet may have short circuits due to thin trails of counter electrode material across the edge of the element and bridging the gap between the counter electrode and the base plate. According to the invention a train of short pulses of heavy current is passed through the rectifier element in the forward direction whereby the trails of counter electrode material are completely vaporized. In the Figure a condenser 1 is continuously charged through a resistance 3 and ignitron 4 feeds a 10- pulse train through test rectifier 2 at a repetition frequency equal to A.C. mains frequency. The ignitron 4 is controlled by a relaxation oscillator incorporating a discharge tube synchronized with the A.C. mains and the number of pulses is controlled by a timing device having a synchronous motor and co-operating contacts. Pulse length and peak details are given and the ignitron may be rocked by a motordriven cam, Fig. 2 (not shown), to prevent mercury-wetting of the ignitor leading to erratic operation.
Patent GB-279816-A (GB)
Title: Improved process of and apparatus for drying paper or other material
IPC: D21F5/02
Filed: 1927-10-06
Abstract: 279,816. Cowan, H. W. Oct. 29. 1926, [Convention date]. Air, treating with liquids.-Hot moist air from a drying-chamber 3 is drawn through water sprays in a collecting duct 8 for the purpose of condensing and removing moisture.
Patent GB-224545-A (GB)
Title: Improvements in and relating to systems of heating feed-water and the like
IPC: F22D3/04
Filed: 1924-11-06
Abstract: 224,545. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Nov. 6. 1923, [Convention date]. Heating water; feed-water, heating.-Water, particularly boiler fead-water, is heated by collecting in a closed tank the volume required for a certain period of time and heating it up to the desired temperature by exhaust steam from an engine which works with a constantly increasing back pressure and which is loaded with say an electric machine taking the variable output of the engine. Several collecting tanks receiving the exhaust from engines may be used the tanks being used one after the other to heat the water. Water may be heated in a collecting tank only over a part of the range of the desired rise in temperature, the further heating being effected by tapped steam of constant temperature or by live steam. The water of condensation accumulating in the condenser f of a main engine a during a certain period of time is passed into collecting tanks g, h alternately, and is heated to say the temperature of the boiler steam by exhaust steam from an engine b operating an electric generator e. The heated water is taken from the tanks in turn and conducted to the boiler, a flue-gas preheater, another preheating device, or to an intermediate container i, from which it can be withdrawn as required.
Patent GB-863389-A (GB)
Title: Improvements in and relating to electrical socket members
Inventor: HEATH CLARENCE WILLANS
IPC: H01R13/24
Filed: 1958-08-19
Abstract: 863,389. Lamp holders. CARR FASTENER CO. Ltd. Aug. 6, 1959 (Aug. 19, 1958], No. 26680/58. Class 38 (1). An electrical socket with a plug receiving recess 2 in an insulating body 1 contains a slidably mounted resilient insulating sleeve 8 carrying a contact 13-14 for the plug and having resilient outwardly projecting means 9, e.g. integral therewith which, in assembly, can be snapped through an aperture 6 in the base 7 of the body 1 to abut the base 7 and limit movement of the sleeve, due to a spring 11, towards the outer end of the recess 2. Bayonet slots are formed in the recess 2, one of the slots being formed partly in the wall of the recess and partly in a contact insert 5 which has a resilient securing tongue and a tail piece 5a serving as a wiring tag. Alternatively, the body may be of conducting material and serve as one connection with the plug, the other connection being the contact 13-14 which has a wire 15a clinched to it.
Patent GB-538714-A (GB)
Title: Improvements in or relating to machines for fixing tubular rivets, eyelets or similar fastenings
IPC: A43D100/02
Filed: 1939-09-27
Abstract: 538,714. Fixing tubular rivets SOC. D'EXPLOITATION DE BREVETS & LICENCES POUR APPLICATIONS MECANIQUES. (S.E.B.E.L.P.A.M.). Sept. 27, 1939, No. 26743. Convention date, March 9. [Class 43] A machine for applying tubular rivets &c. comprises a fixed abutment carrying the upper clinching tool, or a moving abutment which is positively fixed during the clinching period.. As shown the abutment 3 is carried on a neck 2 of the frame and is furnished with a mandrel 4 which is reciprocated by a cam-operated arm 5 and removes a rivet from a guide 26 ; the guide is pivoted at 24 to the frame and is operated by a pin 21 engaging a cam surface 22 thereon, the pin being mounted on an arm 15 carrying the lower clinching tool. The end of the rivet guide is formed with bosses 32 which form guide for the operator in placing the work 31, already perforated, in position, and help to remove the work when the operation is completed. In another form the abutment 3 is reciprocated vertically to facilitate feeding the rivets but is locked against movement during clinching by a transversely movable fork engaging the stem of the abutment. Specification 518,707 is referred to.
Patent GB-634710-A (GB)
Title: An arrangement for printing on fabrics or paper or other materials in the form of webs or ribbons
IPC: B41F15/08
Filed: 1946-09-06
Abstract: 634,710. Stencil ling-apparatus ; collapsable rollers. JANE, F. Sept. 6, 1946, No. 26791. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 13, 1947.] [Classes 100 (i) and 100 (ii)] In an apparatus for printing on fabric, piper or other material in web form stretched on a printing desk by guide rollers, one of which is also a feed roller, printing stencils are arranged at equal distances from a vertical axis on a frame capable of rotating or of performing an oscillating movement around said axis and being raised or lowered with the stencils so that the respective stencils rest successively on the material on the desk. Material is intermittently fed from a bale 5 by a feed-roller 7 over a table 1. Printing stencils 10 are mounted in a frame 4 rotatable about its axis 13 and secured to a tube 15 slidable on a post 14 in the end of which is a spring 16 which urges the tube upwardly. A disc 22 having a number of holes is fixed on the tube 15; a sleeve 23 is mounted coaxially with the disc and is rigidly connected with an arm 23<SP>1</SP> which is oscillated about the tube 15 by a crank 21<SP>1</SP> on a shaft 21. The arm 231 carries a stud 23<SP>11</SP> spring-urged to engage holes in the disc 22. Movement of the shaft 21 oscillates arm 23<SP>1</SP> and in one of its extreme positions the stud 23<SP>11</SP> engages a hole in the disc 22, simultaneously the disc 22 is raised by a cam 19 and lever 18 and is further rotated by the crank 21 until the disc is lowered when the stud 23<SP>11</SP> is displaced by a fixed stud 25 which locks the disc 22. The stencils 10 are thus given an intermittent rotation about the post 14. In the case when the number of stencils is small the frame 4 may be given an oscillating motion instead, by arranging that the ratio of the period when the frame is lowered to the period when it is raised is about 2: 1. If the printing is in one colour only the turning of the frame may be prevented by a coupling between the shaft 21 and the crank 21<SP>1</SP>. When printing stencils are employed of different width the feed-roller 7 may be exchangeable or may be fitted with axial bars with fabric-engaging fins which can be simultaneously pushed in or out of slits in the roller 7. The roller 7, Fig. 4, comprises disc-like ends 7<SP>1</SP> and 7<SP>2</SP> mounted on a shaft 7<SP>3</SP>, the end 7<SP>1</SP> being fixedly secured to the shaft 7<SP>3</SP>. A hollow shaft 31 carries right and left-hand threads and two threaded discs 32 which co-operate with inclined surfaces 29<SP>1</SP> on axial bars 29 movable in slots in the roller 7. The effective diameter of roller may be varied by loosening bolts 34 which secure a disc 33 to the end 7<SP>2</SP>, the disc 33 being then turned in the appropriate direction to increase or decrease the diameter of the roller by moving discs 32 axially and the bars 29 radially.
Patent GB-1194675-A (GB)
Title: Scanning of Documents for Graphic Communication Systems
Inventor: STILLWELL PETER FREDERIC THOMA
IPC: H04N1/415
Filed: 1966-06-15
Abstract: 1,194,675. Pictorial communication. XEROX CORP. 13 June, 1967 [15 June, 1966], No. 26807/66. Heading H4F. A method of scanning selective elemental areas of a document along a predetermined raster to produce an electrical output signal comprises scanning across the document alternately on adjacent lines of the raster, the scan on each line extending over more than one information bit element (i.e. the smallest element resolvable by the scanning system) before the scan alternates to an adjacent line, and producing an electrical output signal representative of light reflected from the document at the information bit elements scanned. As illustrated, two bit elements are scanned in each line. If desired, however, a form of interlaced scanning may be employed in which some bit elements may be left out of one scan to be covered by a subsequent scan. The scanning , may be effected by a cathode-ray tube flying spot scanner operated in conjunction with a photo-electric cell, Fig. 1 (not shown). Alternatively, a mechanical scanner could be used to traverse both of two adjacent lines with separate detector means for each line, the data from each line being stored and then interlaced to produce the alternate scanning of the two lines. Before transmission, the signals may be subjected to run.length encoding.
Patent GB-926647-A (GB)
Title: Method of bonding sheet materials
IPC: B05D5/10
Filed: 1959-08-06
Abstract: 926,647. Laminates. RUHRCHEMIE A.G. Aug. 6, 1959 [Sept. 4, 1958], No. 26869/59. Class 140. Two sheet materials are bonded together by flame-spraying low-pressure polythene, chlorinated low-pressure polythene or sulphochlorinated low-pressure polythene on to one surface of each material and bringing the sprayed surfaces together under compression. The component sheet materials may be the same or different, and include metals, wood, leather, synthetic resins and textiles. Examples describe the bonding together of two iron plates, and of an iron plate and a sheet of polythene, with each of the above materials, of two sheets of polythene with low-pressure polythene and with chlorinated low-pressure polythene, and of jute fabric layers with chlorinated low-pressure polythene.
Patent GB-647912-A (GB)
Title: Rod and like couplings
IPC: F16B7/18
Filed: 1947-10-07
Abstract: 647,912. Rod couplings. GENERAL DESCALING CO., Ltd., and WEBB, L. W. Oct. 7, 1947, No. 26884. [Class 99(i)] A rod or like coupling consists of a body portion 1 with threaded bores 2 to engage a plug 4 bored to receive a rod 7 having a turned up end 7a which is retained between a flange 3 in the body 1 and a slot 6 in the plug 4.
Patent GB-1392623-A (GB)
Title: Optical code reader
IPC: G06K7/10
Filed: 1972-06-08
Abstract: 1392623 Optical data reader ADDRESSOGRAPH MULTIGRAPH CORP 8 June 1972 [9 June 1971] 26906/72 Heading G4M An optical data reader for use with different codes has a card magazine advancing cards 12 to a front position then moving them along a track 18 and a read head (Fig. 1, not shown), positioned across the track. The read head has light fibres 60 uniformly distributed across the track to supply light from a lamp to a card and two sets of inclined light fibres 80, 82 feeding reflected light to movable light sensors fibres 80, 82 terminate in an extension 86, 90 which is received in a slot in a sensor carrier 104 held in position by a screw 106. The carrier may have a replaceable insert carrying sensors spaced according to the data code or may have integral light guides and sensors (Fig. 11, not shown), if the codes are closer together than the sensors. The light fibres have small diameter so that each sensor 124, 126 receives light from a plurality of fibres (Fig. 8). Each card may carry light and dark markings, may be punched or may carry printed "l"s.