baber/WOPTO huggingface dataset:
Patent GB-1376878-A (GB)
Title: Windshield wiper connector
IPC: B60S1/40
Filed: 1973-05-02
Abstract: 1376878 Windscreen wipers J BAUT and P JOURNEE 2 May 1973 [31 Oct 1972] 20730/73 Heading A4F [Also in Division E2] A two part coupling 1 for attaching the curved end 4 of a wiper arm to a wiper blade harness 2 comprises a hollow relatively rigid component 7 interlocked with a second, relatively flexible, component 6, both components 6, 7 being pivotal about a common axle 3 secured to the harness 2. An end stop 14 on the flexible component 6 abuts the end of the wiper arm, portion 13 being flexed prior to wiper arm disconnection. The relative positioning of the two components 6, 7 is maintained by a transverse bar on one component which engages in a transverse groove in the other component. The . components 6, 7 may be of plastics e.g. reinforced polyamide for component 7 and acetal resin for component 6.
Patent GB-354028-A (GB)
Title: Improvements in and relating to hard metal compositions
IPC: C22C29/06
Filed: 1930-07-09
Abstract: A sintered hard metal composition, for example for tool bits, is made from powdered tungsten carbide and powdered uranium.  The mixed powders may be heated in a carbon mould to 1500-1600 DEG  C. and simultaneously subjected to a pressure of about 1000 lb. per square inch.  The product may consist of about 82 per cent of tungsten, 5 per cent of carbon, and 13 per cent of uranium. Specifications 288,521 and 335,453, [both in Class 82 (i), Metals, Extracting &c.], are referred to.
Patent GB-583429-A (GB)
Title: Improvements in or relating to gas turbine plants
IPC: F02C7/143
Filed: 1944-10-26
Abstract: 583,429. Gas turbines. SULZER FRERES SOC. ANON. Oct. 26, 1944, No. 20855. Convention date, Oct. 28, 1943. [Class 110 (iii)] In a gas turbine plant of the type in which the greater part of the working medium flows in a circuit and after doing work is again compressed, the working medium is cooled in a gas cooler connected to a closed circuit the cooling medium of which is liquid and is itself cooled in a recooler by cooling. water containing foreign matter. The air from a compressor 1 passes through a heat exchanger 2 heated by the exhaust from the turbine 4 and is then divided ; part pases over the heat exchanger 3 and feeds the turbine 4 and part supplies the combustion air for the burner supplying hot gases to the turbine 6 delivering useful power. The exhaust from the turbine 4 after passing through the heat exchanger 2 is cooled in a gas cooler 9 and returns to the compressor 1. The air withdrawn from the circuit through the turbine 6 is replaced by the compressor 5 at a point in the circuit where the temperature is approximately the same as that of the make-up quantity. The cooling medium of the cooler 9 is contained in a closed circuit formed by the pipe 11, heat consuming elements 13, a recooler 14 and a pipe 12. Any heat not utilized in the elements 13 which may be heating systems, fluid heaters, distilling plants, etc., is taken out by the recooler 14, which is cooled by sea water or other water containing foreign matter circulated by the pump 16. The purpose of this arrangement is to avoid the deposition of deleterious substances on the surfaces of the cooler 9. The cooling medium may be water, oil or similar carbohydrates, and the plant is of such dimensions that at full load and below, the cooling medium temperature remains below 50‹C.
Patent GB-1358487-A (GB)
Title: Casing sizer structure
IPC: A22C11/02
Filed: 1972-05-05
Abstract: 1358487 Casing sizer RHEEM INTERNATIONAL Inc 5 May 1972 20979/72 Heading A2B A casing sizer for use in conjunction with a stuffing horn comprises an annular sizing ring for surrounding the horn and casing thereon, said ring being of a resilient material, for example polytetrafluoroethylene, and formed to include a relatively thin portion which may engage with the outer periphery of the casing, and adjustable means for compressing the thin portion of the ring in a radially inwards direction against the casing. Fig. 3 shows a section through a preferred embodiment, wherein a ring 6 having chamfered aperture 17, a resilient ring 12 having thin portion 16, and adjusting screw 10 are all supported in frame 5 about the stuffing horn having exit 3 and casing 2. The horn may be coated inside and out with polytetrafluoroethylene.
Patent GB-587049-A (GB)
Title: Improved hand drill and like tool
IPC: B23B45/06
Filed: 1944-10-27
Abstract: 587,049. Hand drills. GREENE, C. E., and GOLDMAN, A. Oct. 27, 1944, No. 20987. [Class 83 (iii)] Hand drills have a casing that includes a hand-grip such that the drill may be held in and pressure applied by one hand. The upper part of the casing 2 has a projection 3 extending across the full width and having an undercut lip 16 to receive the tips of the fingers. The open side 4 of the casing is closed by the driving bevel-wheel 13 rotating on a stud screwed into a boss 11 on the casing. In a modification, the upper part of the casing is in the groove of a spade handle grip.
Patent GB-284156-A (GB)
Title: Improvements relating to electric motors
IPC: H02K9/06
Filed: 1927-08-09
Abstract: 284,156. White, A. E., (Independent Pneumatic Tool Co.). Aug. 9, 1927. Motors. cooling and ventilating.-An air-cooled motor for a drill or other purposes has a casing which admits air at one end and outlet openings adjacent to the other end of the motor distributed around the periphery of a fan and driven by the motor, the outlet openings emerging through the casing tangentially to the fan. The inlet opening may be protected to prevent the entraining of dirt &c, when the motor is dropped about on dirty ground. In the drill motor shown, the air is driven by a fan 12, Fig. 1, through a gauze-protected opening 16 in the terminal lug 17 on the motor casing 1 and emerges through openings 19, which, as shown in the sectional view, Fig. 3, on the plane 3-3, Fig. 1, are tangential to the fan. The fan comprises a solid disc 14, radial webs 12 and annular disc 13 defining the opening 15 through which the air passes to the outlet openings 19. The casing at the fan region is concentric to the fan but in the armature region, as shown in Fig. 2, which is a section on the plane 2-2, Fig. 1, it is eccentric to the motor so as to form tapering inlet ducts 20 for the air.
Patent GB-1329509-A (GB)
Title: Electric power control circuit
IPC: H02M1/08
Filed: 1971-04-19
Abstract: 1329509 Automatic temperature control systems MITSUBISHI DENKI KK 19 April 1971 [31 Jan 1970] 21066/71 Heading G3R 1. An electric power control circuit comprises a semi-conductor device connected between an A.C. power source and a load, a capacitor arranged to be charged during a period of time during which an A.C. voltage from the A.C. power source is of reverse polarity with respect to said semi-conductor control device, a switching element arranged to discharge said capacitor through a control electrode of said semi-conductor control device, and a signal generating circuit controlled by a variable impedance element arranged to operate the switching element when zero forward voltage is applied to said semi-conductor device or when the voltage from the A.C. power source is of reverse polarity with respect to the semiconductor device. As applied to an electric blanket the heater 101 is in series with thyristor 3 the gate of which is connected to a capacitor 7 charged in the opposite half cycle through a diode 8. The variable impedance element comprises thermo-sensitive layer 103 having a negative resistance-temperature coefficient which is interposed between heater 101, and a conductor 102 connected at one end to components 13, 14 and at the other end through a variable resistor 12' to the base of a transistor 9. Layer 103 may be considered equivalent to a parallel resistor-capacitor combination hence by adjusting the time constant of the circuit the transistor 9 may be made sufficiently conductive so the positive potential on the thyristor gate renders this conductive at approximately zero voltage points.
Patent GB-508259-A (GB)
Title: Improvements in or relating to apparatus for making photographic prints
IPC: G03B27/24
Filed: 1938-07-15
Abstract: 508,259. Photographic printing and developing apparatus; delivery apparatus. KALLE & CO., AKT.-GES. July 15, 1938, No. 21089. Convention date, July 19, 1937. [Class 98 (ii)] [Also in Group XVI] An apparatus for producing photographic prints, especially diazotype prints, comprises a printing apparatus, a developing apparatus, a suction table with a porous transport band for feeding the prints from the printing apparatus to the developing apparatus, and a second suction table for separating the original from the print. The second table may be replaced by an air blast or a rotating brush. In the form shown, the original and sensitive material enter the apparatus at A and are conveyed by the band 3 across the glass bend 2 for exposure. They are then picked up by the bands 3 and 9 associated with the suction tables 8 and 21. The original is removed by the former table and drops into the trough D while the print passes on to the developing chamber 12 provided with a conveyer 13 which delivers it into the trough C. The developing chamber may be in the form of a casing having a perforated top and enclosing means for generating ammonia gas.
Patent GB-317002-A (GB)
Title: Improvements in or relating to tumbling mills
IPC: B24B31/05
Filed: 1929-07-09
Abstract: 317,002. American Foundry Equipment Co., (Assignees of Peik, L. D.). Aug. 8, 1928, [Convention date]. Rumbles and tumbling-barrels ; sand-blast. - A tumbling machine, particularly for smoothing rough castings &c., comprises a movable segment which runs in one direction to tumble the articles under a sand blast and in the opposite direction to discharge the articles from the machine on completion of the operation. The machine casing comprises end walls 6, 7 connected by side plates 8, and is strengthened by channel members 9. The charging and discharging opening in the casing is closed by a door 13 comprising two sections 16, 17 hinged together at 18. The upper portion 16 is connected to the casing by a spring hinge device, Fig. 8, the springs 25 being tensioned by rotation of toothed members 24 in order to facilitate opening of the door by a handle 22. The lower door section supports a number of sand-blast nozzle-holders 29 connected by flexible pipes 30 to a tank 3 containing compressed air and abrasive and the door is securely fastened by means of cam levers 32. The end walls of the casing are fitted with circular barrel heads 39 provided with peripheral recesses 42. The movable tumbling-segment comprises an endless belt supported on three pairs of sprockets 43 - - 45 and consisting of chains 52, 53, the links 54 of which are secured to transverse angle irons 58 on which the articles rest. The links are also provided with curved overlapping portions 59 which extend into the grooves 42. The tumbling-segment is supported to resist the weight of the articles by track mem. bers 46..Sand directed on to the articles falls through gaps between the angle-irons 58 into a trough 48 whence it is transferred by a worm convever 49 to an elevator 2. This consists of a chain running on sprockets 64, 65, and carrying scoops 70 which transfer the sand to a shoot 71 communicating with the tank 3 where it is again picked up by the air blast. The apparatus is driven from a pulley 82 connected by spurgearing 83, 85, to the shaft 84 carrying the lower sprockets 44. The shaft 84 is further connected through a one-way clutch 73 to the worm conveyer, the clutch being provided to prevent reversal of the conveyer when the tumbling- segment is reversed to discharge the articles. A device 88 supporting the upper sprocket shaft 89 serves for adjusting the tension of the tumbling- segment. On completion of the operation, the abrasive blast is shut off, the door 13 opened, and the driving pulley 82 reversed to carry the articles out of the charge opening and between side plates 90 to a suitable receptacle.
Patent GB-1387684-A (GB)
Title: Thermal stabilization of polysulphone
IPC: C08K3/30
Filed: 1972-05-05
Abstract: 1387684 Polysulphone resin compositions UNION CARBIDE CORP 5 May 1972 [6 May 1971] 21150/72 Heading C3R A polyarylene polyether polysulphone resin composition is thermally stabilized with a non- hydrolysable divalent metal oxide or sulphide preferably of one of the following metals: Cd, Co, Cu, Fe, Mn, Ni, Pb, Sn, Zn and Mg, and preferably in an amount of from 0À1-15% wt. The composition may also comprise asbestos preferably in an amount of 2-40% wt. and/or titanium dioxide preferably in an amount of up to 50% wt. The stabilizer preferably has a particle size of less than 1 micron. Preferred resins used have the repeating unit.
Patent GB-922007-A (GB)
Title: Improvements in or relating to surgical instruments
IPC: A61B19/00
Filed: 1959-06-19
Abstract: 922,007. Brain centres localizing and treating. T. J. CONNELLEY. Sept. 5, 1960 [June 19. 1959], No. 21181/59. Class 81 (2). An instrument for use in brain surgery comprises a hollow plug which, resting in a hole formed in the patient's skull, forms the sole support of the instrument, a guideway fixed to the plug and arranged to constrain a part of another guideway to swing about a first axis transverse to the axis of the hollow plug which other guideway constrains an instrument holder to swing about an axis at right angles to and intersecting the first axis and the axis of the hollow plug, and which instrument holder is arranged to constrain the instrument to move along an axis passing through the point of intersection of the other axes. As shown, a frame 10 having a flange 11 at each end is spanned by an arcuate inverted channel section bridge 13 which moves in arcuate slots 12 in the flanges 11 and has flanges 14 which engage the upper surface of the flanges on which a scale in degrees is marked. Slidably engaged in a slot 8 in the bridge 13 is a surgical instrument carrier 19 which comprises a T-shaped member 20 on which a guide tube 24 is screwed, Fig. 1, or through which an alternative form of guide tube 48, Fig. 4, is passed. The lower end of the tube is held in a mounting 25 allowing universal pivoting movement about a point 15 at the intersection of the axes about which the arcuate slots 12 and 8 are struck. Means for securing the frame 10 on the skull of a patient comprises an externally threaded hollow plug 27 with a flange 27b secured by set screws 29 in a boss 26 in the base of the frame. The internal surface of the plug is conical. In operation, the plug 27 is screwed into a hole drilled in the skull and a reference gauge 34, Fig. 5, is inserted in the plug a mark 37 on the gauge coinciding with the point 15. Spaced from the mark 37 is a hole 38, and spaced from the hole 38 by an equal distance is a hole 39. Lateral and antero-posterior X-rays are taken with the patient in a supine position and the target point 49 is plotted on the film, Fig. 7, from known landmarks. The gauge 34 is continued downwardly as a line 41. The point 15 is found by measuring the distance between the holes 38 and 39, and a line 42 drawn from the target point 49 through the point 15 gives the angle of correction 50. A similar angular measurement can be made from the other X-ray. These angles are set on a scale on the bridge 13 and the scales on the flanges 11 and the frame 10 are mounted on the plug 27 so that the bridge 13 lies in plane of one X-ray and the slots 12 in the plane of the other. To determine the length of instrument to be used, a depth gauge (not shown) shorter than the estimated length and having a hole at a measured distance from its tip is fitted in the carrier 19 and passed into the brain. Further X-rays are taken and the required length of instrument calculated by comparing the distance from the tip to the target point 49 with the distance from the tip to the hole.
Patent GB-248412-A (GB)
Title: Improvements in electromagnetic acoustic devices
IPC: H04R11/00
Filed: 1924-09-09
Abstract: 248,412. Western Electric Co., Ltd., (Western Electric Co., Inc.). Sept. 9, 1924. Electromagnets.-Relates to telephone receivers and like instruments in which the steady magnetic pull on the armature is wholly or partly balanced in all positions of the armature. According to one feature of the invention, the balancing is effected solely by the inherent characteristics of springs or other resilient means, and according to another feature, the balancing is effected in such a manner as to give a resultant restoring force on the armature proportional to its displacement from its mean position. The armature system may have a resultant elasticity which is a function of the frequency over a wide range of frequencies. In the construction shown in Figs. 1 and 2, the armature 23 connected to the diaphragm 33 is supported between the bifurcated pole-pieces 18, 19 of a permanent or electromagnet 11 by means of short springs 30, 31 fixed at both ends to an E-shaped support 22 of nonmagnetic material. The line coils 20, 21 are arranged as shown and the armature 23 may also be supported by a pin 34 at its centre. The springs 30 may be so designed as to vary the restoring force at exactly the same rate as the pull due to the steady magnetic field, in which case the armature would remain in any position to which it was moved. In order to prevent freezing of the armature to the pole-pieces, the springs may provide a restoring force slightly greater than the force due to the magnetic field by an amount proportional to the displacement. A force giving a low and constant elasticity over a wide range of frequencies of such a value as to give the vibrating system a natural period of about 50 to 200 cycles per second is suitable. In another construction the armature 64, Figs. 7 and 8, connected to a diaphragm 68, passes through line coils 61 arranged between pairs of polar extensions 60 of pole-pieces 58, 59 of the magnet 57. The armature is supported by torsion members 63 screwed to the pole-pieces and is connected to a member 69 the ends of which are supported between elastic cushions 70 built up of sheets of thin foil or paper. The cushions are clamped between parts 71 - - 74 which are bevelled so as to provide a larger space for the inner ends of the sheets. The presence of air between the sheets modifies the elastic properties of the system in such a way that the elasticity varies with the frequency. In a modification, the armature is connected to a plunger arranged between thin discs of foil or paper in a cylindrical chamber. Heavier discs may be arranged between the thin discs to increase the mass of the cushioning system. In the construction shown in Fig. 5, in which the resultant restoring force is made proportional to the displacement of the armature 42, the latter is supported by a convex bearing surface 41 against which it is held by a resilient member 43 having a knife edgo engaging a, groove in the armature. As the armature vibrates, the instantaneous centre varies and consequently the resultant force.
Patent GB-571634-A (GB)
Title: Improvements in and relating to electric toasters
IPC: A47J37/08
Filed: 1943-12-21
Abstract: 571,634. Electric toasters. BRITISH THOMSON-HOUSTON, CO., Ltd. Dec. 21, 1943, No. 21398. Convention date, Dec. 24, 1942. [Class 28 (i)] A toaster for preparing ordinary or " Melba " toast has control means which reduce the heat and close an air inlet in the base of the toaster when toast of the latter type is required. Air normally enters slots 55a which are closed by a damper 53 when a knob 49 is depressed; switch contacts are simultaneously controlled by this knob to change the heater connections from parallel to series arrangement and to cut out the heating resistance 29 which controls the timing and toast-ejecting means. A knob 17, which also controls the main switch of the toaster, is then utilized to raise the toast for withdrawal. The preferred heating chamber construction is otherwise that which has been described in Specification 568,498.
Patent GB-939621-A (GB)
Title: An improved heating and/or ventilating apparatus for use in a building
Inventor: BOND REGINALD BENJAMIN
IPC: F24F7/007
Filed: 1961-06-14
Abstract: 939,621. Ventilating buildings. WILLIAM & H. H. JAMES Ltd. June 12, 1962 [June 14, 1961], No. 21412/61. Class 137. Apparatus for heating or ventilating a room, comprises an upper vertical conduit a opening out adjacent the ceiling at a<SP>1</SP>, and a lower vertical conduit b opening out adjacent the floor at b<SP>1</SP>, the two conduits being interconnected by a unit d in which is arranged an electric heating element e controlled by a thermostat (not shown) and energized from a mains supply, and an electric motor f with fan f<SP>1</SP>. As shown, air is drawn in through upper opening a<SP>1</SP>, is heated when passing over element e and is passed out into the room at floor level through lower opening b<SP>1</SP>. The apparatus may be built into a wall of a room so that only apertures a<SP>1</SP>, b<SP>1</SP> and inspection plate d<SP>2</SP> are visible. The conduits a, b and unit d are shown rectangular but may be triangular to fit into the corner of an already existing room.
Patent GB-987894-A (GB)
Title: Aerial systems
Inventor: CLEGG JOHN ERNEST
IPC: H01Q3/00
Filed: 1962-06-04
Abstract: 987,894. Aerials; radio direction-finders. MINISTER OF AVIATION. May 29, 1963 [June 4, 1962], No. 21422/62. Headings H4A and H4D. A radio receiving arrangement comprises a plurality of directional aerials A1 . . .; Fig. 1, pivotally mounted to permit rotation about two substantially common axes so that they can all receive throughout their angular movement R.F. signals in the form of a plane wave substantially at right-angles to their mean direction of reception, an oscillator RO, a phaselock circuit PL1 . . . associated with each aerial for locking a frequency component in a signal derived from the aerial to oscillator RO, and means C for combining the outputs of the phase-lock circuits with a phase disagreement of not more than 45 degrees. In one embodiment each aerial, Fig. 4, comprises a receptor 13, a parabolic reflector 11 and a Cassegrainian reflector 12, and the aerials are tiltable by ganged pinions 9; the aerial system is rotatable in azimuth, Fig. 3 (not shown). Each phase-lock circuit, Fig. 2, includes a maser amplifier and mixer R, a narrow-band I.F. amplifier I, a phase-sensitive discriminator P, a filter T and a voltage-controlled local oscillator LO. The outputs of the devices, Fig. 2, are fed via equi-length feeders F1 . . ., Fig. 1, to combiner C. Feeder network F is arranged such that the phase-lock devices receive inphase oscillations from oscillator RO. Each aerial may be of the helical, or of the Yagi, type. The invention is particularly applied to the reception of super-high-frequency ground signals relayed by a satellite and affords high sensitivity without the necessity of a single, very large, reflector of high manufacturing tolerance. For automatic tracking of the satellite in azimuth and elevation, etither an eccentric rotary motion may be imparted to the Cassegrainian reflector of one of the aerials to provide a conical scan, or four of the aerials may be slightly off-set angularly from the others in four different quadrants to give a split-beam equivalent of the conical scan.
Patent GB-226850-A (GB)
Title: Improvements in and relating to textile or organic fibrous materials
IPC: D06M11/79
Filed: 1923-08-24
Abstract: A colloidal silicate such as bentonite is used alone or in conjunction with the usual finishing or loading materials such as agglutinant size, soap, starch, china clay, or Epsom salts, for treating organic fibrous materials such as textile yarns, fibres, and fabrics, and leather.  In loading paper, the colloidal silicate is always used in conjunction with the filling material. The bentonite or other colloidal silicate is stated to have power of adsorbing materials and of being adsorbed by the fabrics &c. Specification 215,880, [Class 91, Oils &c.], is referred to.