baber/WOPTO huggingface dataset:
Patent GB-761335-A (GB)
Title: Improvements in and relating to measuring apparatus
IPC: G02B23/16
Filed: 1954-12-08
Abstract: 761,335. Mountings for optical instruments, levelling heads. CONTRAVES AKT.-GES. Dec. 8, 1954 [Dec. 15, 1953], No. 35543/54. Classes 97(1) and 97(2) A measuring, instrument such as a surveying instrument 2 is connected to, stand 1 by a resilient diaphragm plate 16, so that it is not displaced laterally during levelling. Preferably, the diaphragm 16 is an annulus of spring steel sheet, and si clamped at its upper and outer edges by bolts, 15, 21. and clamping rings 14, 22, respectively. Three levelling screws 17 are provided and springs 25 take up the play in the threads of screws 17 and, when the deformation of the plate 16 in the area of a screw 17 is such that the screw does not bear any of the weight of the instrument, the'springs 25 prevent the instrument 2 from being lifted off the screw.
Patent GB-1415942-A (GB)
Title: Fuel injection systems
IPC: F02M69/52
Filed: 1973-07-26
Abstract: 1415942 Spray carburetters: regulating I C engine fuel supply ROBERT BOSCH GmbH 26 July 1973 [27 July 1972] 35564/73 Heading F1B Fuel distribution and metering device for an I.C. engine having mixture compression, separate ignition and continuous injection into the intake manifold, the device comprising a housing 1, a bush 17 in which a valve spool 21 is slidably located, control slits 24 in the inner wall of the bush, the slits being elongated in the direction of the axis of the bush, each slit opening into an oval or circular cross-section discharge opening 23 which communicates with a corresponding bore 28 in the housing, and a sealing ring 34 located between the bush and housing around the outlet of each discharge opening: the bores 28 each being arranged to communicate with a fuel injection valve via a control valve 9 arranged to maintain the pressure drop across the control slits substantially constant, the effective aperture of each control valve being variable by a diaphragm 5 which separates two chambers 7 and 8, the chamber 7 being subject to the pressure downstream of the control slits, which tends to open the valve, while the pressure upstream is supplied to the chamber 8. A sleeve 33 is fitted in each opening 23 to support the sealing ring, which is a P.T.F.E. O-ring. The chambers 8 are connected by an annular channel 26 and radial channels 27 to a fuel inlet 14.
Patent GB-1521737-A (GB)
Title: Data processing
IPC: G06F9/22
Filed: 1975-08-28
Abstract: 1521737 Data processing FUJITSU Ltd 28 Aug 1975 [29 Aug 1974] 35618/75 Heading G4A The processing section of a central processing unit 1 (Fig. 1) operates on instructions from either its own control memory 15 or from an auxiliary processing unit 6. As described either control memory 15 may be accessed under the control of address register 16 to cause read out to register 17 of a microinstruction to be executed by control circuit 18 connected to processing section 19, data channel 3 and main memory 2, or a signal from coupling device 14 of the auxiliary unit 6 to control unit 18 results in gate 21 being enabled to permit instructions from memory 8, light pen 10, keyboard 11 or input/output unit 13 to be entered into the register 17. At each access of control memory 15, four instructions are read out, one of these being selected in accordance with the contents of two bits of the address register 16. The register 17 has upper and lower halves each storing a microinstruction and operated alternatively. The arrangement obviates the necessity of storing in control memory 15 microprograms not in frequent use, e.g. those controlling the display of the auxiliary unit 6.
Patent GB-784061-A (GB)
Title: Improvements relating to flexible hose
IPC: A47L9/24
Filed: 1955-12-13
Abstract: 784,061. Flexible hoses : hose couplings. HOOVER, Ltd. Dec. 13, 1955 [Dec. 17, 1954], No. 35701/55. Classes 99(1) and 99(2). In a hose formed from a tube 10 of elastomeric material, e.g. polyvinyl chloride, and a resilient, helical, reinforcing coil 11, e.g. of spring wire 12 covered with polyvinyl chloride 13, and having a flexible and extensible portion A in which the tube has inwardly and outwardly opening helical corrugations 15, 14, the corrugation 15 containing the coil, the hose has at least one relatively stiff and inextensible portion B in which adjacent turns of the coil lie in contact with one another. The turns of the coil in the portion B may be bonded together and to the tube. As shown in Fig. 1, metallic sleeves 18 are fitted into the ends of the portions B which are clamped by bands 20. In making the hose, the coil is placed on a mandrel and the central portion thereof is stretched, after which the tube 10 is inflated, passed over the coil, and then deflated so as to contract about the coil, the latter then being released so that the central portion of the tube contracts longitudinally to initiate corrugations in the tube, the end portions of the tube remaining free of corrugations. Finally the hose is removed from the mandrel and heated by immersion in warm water at a temperature of 160F. or less to relieve the stresses in the tube 10 and allow the turns of the coil in the portion A of the hose to move further towards one another so as to be separated only by the walls of the corrugation 14 lying between those turns. In a modification, the hose is (a) formed at one end with an S-bend or goose neck, and (b) has an end portion flattened to an oval shape, Fig. 5, to form a cleaning nozzle ; the coil 12 may be flattened before the tube 10 is applied thereto. Specifications 774,354 and 784,060 are referred to.
Patent GB-984842-A (GB)
Title: Improvements in or relating to 2-diphenylmethoxy-n,n-dimethylethylamine derivatives
IPC: C07C291/04
Filed: 1961-10-04
Abstract: The invention comprises 2-diphenylmethoxy-N,N-dimethylethylamin oxide hydrate and camphorsulphonate and syrups containing them. The compounds are prepared by oxidation of the parent amine with hydrogen peroxide in methanol, optionally followed by conversion to the camphorsulphonate, and have anti-histaminic, anti-spasmodic, hypothermizing and anti-tussive activity.
Patent GB-1102260-A (GB)
Title: Improvements in or relating to four-terminal networks
IPC: H04B1/64
Filed: 1965-08-20
Abstract: 1,102,260. Gain control. SIEMENS A.G. 20 Aug., 1965 [21 Aug., 1964], No. 35741/65. Headings H3Q and H4R. A variable attenuator comprises a # network having a first thermistor in the series arm and a second thermistor in the input shunt arm, the resistances of the thermistors being differentially varied so as to maintain the input impedance of the attenuator constant while varying the gain. In Fig. 2, the heater currents of the thermistors are differentally varied by the ganged potentiometers 7 and 8 while in Fig. 5, in which the attenuator is connected between the aerial circuit and the first transistor amplifier of a U.H.F. receiver, the resistance of thermistor 1 is controlled in accordance with the receiver output, to give a.g.c., and the heater of thermistor 3 is fed from the output of amplifier 11 the input to which is the voltage developed between points c and e when a constant current is applied across those points from a source 12 via resistor Jm. The amplifier tends to maintain the voltage across points c and e constant, and if resistors 4, 13 and 14, are all equal, and equal to the input resistance of the transistor amplifier, the input resistance of the attenuator will be maintained substantially constant.
Patent GB-1525931-A (GB)
Title: Hair tweezer device
IPC: A61B18/14
Filed: 1975-08-29
Abstract: 1525931 Depilatory appliances CHITOSE CORP 29 Aug 1975 [10 June 1975] 35795/75 Heading A5R A hair tweezer device comprises two elongated legs 1 and 2, a curved portion 3 linking the legs, two hair clamping members 6 and (7), a high frequency electrical wave conductor 4 connected to the clamping members, and a shield member 12 having a U-shaped end section 12b wherein electrical waves are passed through the clamping members to heat a hair held therebetween to allow the hair to be plucked, the shield member preventing contact of the skin with the clamping members. In operation, locking pin 10 is disengaged from setting link 8 by moving setting lever 15 to the left as in Fig. 2 allowing the legs I and 2 to move apart and so to produce a gap between the clamping members 6 and 7. Setting lever 15 is then moved to the left to move setting link 8 to the left and so extend outwards the safety member 12. The tips 6a and 7a of clamping members 6 and (7) respectively are placed about a hair and clamped manually together. The setting lever is moved further to the left so that locking pin 10 is reengaged in setting link 8. The passage of electric waves then allows the removal of the hair. In other embodiments the shield member is replaced by insulation about the clamping members, Figs. 3 to 3b and 5 to 5b (not shown). The legs I and 2 and curved portion 3 may be formed of metal plastics.
Patent GB-963038-A (GB)
Title: Improvements in underground storage of liquefied gas
IPC: E21F17/16
Filed: 1961-10-04
Abstract: 963,038. Storing liquefied gases. GAZ DE FRANCE. Oct. 4, 1961 [Jan. 10, 1961], No. 35807/61. Heading F4P. The connection between an underground cavity 4 for storing liquefied gas at substantially atmospheric pressure and the bottom 3 of a shaft 1 leading to ground level is sealed and reinforced by an annular member 5, e.g. of concrete set in a recess 4 in the surrounding frozen earth and secured by tie-rods 8, 9. The upper inner marginal edge of member 5 serves to support a floor 13 through which pass supply and delivery duets and on which stand ancillary equipment (not shown). The walls 6, 7 of recess 4 are faced with cement and a layer of synthetic resin 14 and the member 5 may be constructed of glass fibre, polyester or cast metal.
Patent GB-1114138-A (GB)
Title: Improvements in or relating to braiding machines,particularly hose braiding machines
IPC: D04C3/14
Filed: 1965-08-23
Abstract: 1,114,138. Braiding machine. W. & M. OSTERMANN (OFFENE HANDELSGASELLSCHAFT). 23 Aug., 1965 [17 Sept., 1964], No. 36096/65. Heading D1C. The bobbins 16 for a wire carrier for a braiding machine are mounted vertically and coaxially with the carrier shaft 9. The bobbins are confined within the framework of the carrier and are spaced apart by brake discs 19 which are rendered operative to brake the bobbins when a bottom plate 20 is pressed upwardly against the bottom disc 19 by the action of a lever 22. The lever 22 is influenced by the strand which passes between a roller 37 on a spring biassed collar 38 and a roller 23 on the end of the lever 22. As the tension in the strand increases or decreases due to the take up of the braid the lever 22 is caused to adjust its position and affect the braking on the bolbbins.
Patent GB-1096604-A (GB)
Title: Invertors
Inventor: PAICE DEREK ALBERT
IPC: H02M7/5387
Filed: 1963-09-13
Abstract: 1,096,604. Synchronising transistor oscillators. ROTAX Ltd. Oct. 27, 1964 [Sept. 13, 1963], No. 36133/63. Heading H3T. [Also in Divisions G3 and H2] In a bridge inverter of four transistors 14, 15, 16, 17, the operation of transistors 16 and 17 is phase displaced with respect to the operation of 14 and 15 in order to vary the output voltage. Transistors 14 and 15 are fed from a transistor square wave oscillator (Fig. 2, not shown) one output of this oscillator being fed at a, b to a second oscillator (Fig. 3) which gives an output of similar frequency but of a phase which is dependent on a D.C. voltage at k, l. This voltage varies the impedance of a transistor 38 which is in series with the signal at a, b and which with a capacitor 37 forms a phase shifting circuit controlling the phase of the oscillator output. To effect automatic regulation the signal at k, l may be dependent on the load voltage being derived from a transformer 36 (Fig. 1) shunting the load.
Patent GB-1164806-A (GB)
Title: Improvements in or relating to Spark-Erosion Machines
Inventor: SMITH GORDON VICTOR
IPC: B23H7/18
Filed: 1966-08-12
Abstract: 1,164,806. Spark erosion. SPARCATRON Ltd. 7 Aug., 1967 [12 Aug., 1966], No. 36218/66. Heading B3V. [Also in Division G3] In a spark erosion apparatus the electrode 1 is withdrawn relatively to the workpiece 4 in the event of a short circuit and is subsequently returned to the correct gap distance at two different speeds. Either the electrode or the workpiece may be moved. Feed of the electrode is controlled by the voltage across the gap and is effected by drive mechanism 3 comprising an hydraulic system, Fig. 5 (not shown), or an electric motor acting through gearing and rack and pinion mechanism, Fig. 6 (not shown). During normal feed of the electrode carrier 2, an arm 10 thereon presses upon a micro switch 6 mounted through compression spring 6 on a bracket 7 slidable under restraint of a leaf spring 9 on a vertical post 8. When a short circuit occurs the electrode is withdrawn by its drive 3 but the bracket 7 remains in position upon the post 8. Subsequent return movement of the electrode is effected at a high speed until arm 10 engages and actuates the micro switch 6 which causes a reduction in speed. In the case of the hydraulic drive, Fig. 5 (not shown), the micro switch 6 brings in a resistance (37) in the control circuit of a solenoid actuated control valve (32); in the case of the electric drive, Fig. 6 (not shown), the transmission includes high and low ratio gear-boxes (41), (42) selected by electromagnetic clutches (43), (44) controlled by the micro switch 6. Spring 12 is adjustable by screw 13 to vary the position of engagement of the micro switch. In another embodiment, Figs. 3, 4 (not shown), the arm 10 carries a slider (14) moving over a linear potentiometer (15) on post 8. During the return movement of the electrode, voltages (V 1 ) and (V 2 ), Fig. 4 (not shown), derived from the potentiometer are fed to a differential amplifier (18) which controls the speed of the drive 3 through relay 19, 20.
Patent GB-960186-A (GB)
Title: Electrically triggered squib
IPC: F42B3/188
Filed: 1962-09-24
Abstract: 960,186. Electric initiators. BENDIX CORPORATION. Sept. 24, 1962 [Oct. 19, 1961], No. 36289/62. Heading F3A. An explosive initiator particularly adapted for use in missiles, comprises electrodes 12, 26 separated from one another by a thin frangible sheet 27 and a gas-filled space 16 which forms part of a spark gap, the electrode 26 having an aperture 32 which contains explosive material 38. The electrode 12 and a pin 21, connected to electrode 26, have an air-tight fit within bores 14, 16 and 22 of a ceramic or plastics insulating plug 11, and one end of an insulator 19 is enclosed by a cup-shaped portion 15 of electrode 12 and the other end abuts the sheet 27 adjacent aperture 32. The sheet 27, which may be of aluminium or copper foil and has a thickness between 0.0005 and 0.005 inch, is ruptured over the area abutting insulator 19 when gas in cavity 16 is heated by spark discharge therethrough. After rupture, explosive 38, 39 is spark-ignited and a main charge 40 is thereby detonated. Insulator 19 may be of ceramics, but is preferably of alumina or quartz coated with a semi-conducting material or is alternatively made entirely of semi-conducting material. A sheath 36 may be of copper or brass.
Patent GB-764861-A (GB)
Title: Improvements relating to square wave voltage generators
Inventor: WILKINSON CHRISTOPHER FRANCIS
IPC: H03K5/08
Filed: 1953-12-31
Abstract: 764,861. Pulse generating circuits. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 25, 1955 [Dec. 31, 1953], No. 36207/54. Class 40(6) A circuit for generating a square wave voltage from a sinusoidal input comprises an amplifier having a negative feedback path including biasing means whereby appreciable feed-back occurs when the input voltage exceeds a pre-determined proportion of its peak value, the effective bias being equalized during positive and negative half-cycles of the input. The Figure shows a non-linear circuit in which a sinusoidal voltage is applied at input VIN to an amplifier which has a negative feedback path comprising oppositely poled rectifiers D1, D2 and capacitors C1, C2. The capacitors will acquire charges which have a constant . mean value over a number of cycles so that neither rectifier conducts until the applied voltage exceeds that across either capacitor. For a sine-wave input of constant amplitude the output voltage waveform will' have equal areas above and below the axis and the peak voltage of the square wave out- - put will vary with the peak voltage of the sinusoidal input. In a modification the resistor R is replaced by a thermistor and resistor in series by this means an approximately constant output peak voltage is obtained with varying input voltage. The mean gain and thus the peak output can be made constant for a wide range of input voltages and independently of the ambient temperature by also replacing resistor R1 by a thermistor and resistor in series.
Patent GB-450538-A (GB)
Title: Improvements in and relating to the ventilation of enclosures
IPC: F24F3/02
Filed: 1934-12-18
Abstract: 450,538. Ventilation system and apparatus. CARRIER ENGINEERING CO., Ltd., and SAINTY, C. L., 24, Bucking- ham Gate, London. Dec. 18, 1934, No. 36354. [Class 137] A building is ventilated by being divided into zones according to natural thermal exposure (solar radiation or cold winds), and conditioned air is supplied independently to each zone, or group of rooms from a central plant under the control of means sensitive to the condition of the air in the respective zones or groups of rooms. An air conditioning plant comprising a spray de-humidifier 3, and fan 4, supplies conditioned air to a large diameter duct II having a damper 17 and branches 13, 13<a>, each leading to a different group of rooms III. The pressure in the duct II may be maintained constant by automatic means described in Specification 344,914 or 418,748. A fan 8 supplies a mixture of conditioned air from pipe 13, and recirculated air from pipe 12 to a tapered duct 9 having branches 10 leading to each room 6. The return air passes by outlets 10<1> into a corridor 11 from which pipe 12 leads. A thermostat 16 in the middle room of a group controls valves 14, 15 in the conditioned and recirculated air pipes respectively to vary the cooling effect of the air supplied to the rooms according to the room temperature. In the winter, the rooms have heating means such as radiators, and the heat-supply is varied according to the variation of heating due to the sun's rays, preferably by the thermostat 16, which also operates in the case of infiltration of cold air from the east or north. A heater may be associated with the volume controls 14 and 15 to heat the air supplied to the rooms in accordance with the thermostat 16, the proportion of air from the central air conditioning plant being increased when the room temperature falls. If the room temperature becomes too low to be restored by cutting down the conditioned air supply, the heater comes into operation.
Patent GB-364290-A (GB)
Title: A process for removing scale from butt welded tubes
IPC: B21C43/04
Filed: 1930-12-04
Abstract: 364,290. De-scaling tubes. ALVERMANN, E., 13, Fl³gelstrasse, D³sseldorf, Germany. Dec. 4, 1930, No. 36570. Drawings to Specification. [Class 99 (ii).] Butt-welded tubes pass through a set of rolls which subject them to such pressure and at a temperature less than 1000‹ Cel., as to detach scale from both the inside and outside.
Patent GB-799357-A (GB)
Title: Improvements relating to suspending or holding building boards as ceilings and roof linings or partitions
IPC: E04B9/26
Filed: 1955-12-21
Abstract: 799,357. Wall and ceiling coverings. HAY, H. M. March 21, 1957 [Dec. 21, 1955; Feb. 22, 1956], Nos. 36583/55 and 5477/56. Class 20(4) A building board a for suspending from a ceiling or roof or for attachment to vertical partitions is attached to a channel section lath b by clips which are attached to stiffening battens d and engage over the flanges of the lath. In Fig. 1, the clips e are of bendable sheet metal secured by screws or nails f, they may be bent back to allow stacking and engage over the straight flanges of the channel member. In Figs. 2 and 3 (not shown), the channel has flanges with inwardly turned edges, and the batten is formed of inverted metal Tees, the clips being secured either between the underside of upwardly joggled ends and the upper faces of the boards or to the upper face of the flange. In Figs. 4 and 5 (not shown), the clips are made of bendable wire and have their ends inserted into the end faces of the battens which are drilled to receive them. In Figs. 6 and 7 (not shown), the clips are formed with turned-back nose portions which are pressed aside by the base of the channel when the boards are pressed against it, the channel having outwardly directed edges in Fig. 7. In Fig. 8 (not shown), the clips consist of bifurcated single wires forming two horizontal prongs which are inserted in drilled holes in the battens. Fig. 9 shows this arrangement, the prongs being united by a loop k<SP>3</SP> formed as a 'hooked and inclined nose which engages over the inwardly directed edge of the channel flange. In Figs. 10 and 11 (not shown), the -clips are pivoted by eyes which are formed at each end and are attached to a bolt passing transversely through the battens. Fig. 12 illustrates a wire hook n formed of a single length of wire pivoting about a transverse axis located in a notch o cut in the underside of the batten d. In Fig. 13 (not shown), the hooks are united by a connecting portion of wire journalled in the notch and in Fig. 14 (not shown) the nose portions of the hooks are interconnected, the ends being inserted into the notch.
Patent GB-1182364-A (GB)
Title: Drive Circuitry for Inductive Load
Inventor: HIBNER JOHN ALEXANDER
IPC: G11B20/10
Filed: 1968-08-01
Abstract: 1,182,364. Switching currents to inductive loads. BURROUGHS CORP. 1 Aug., 1968 [17 Aug., 1967], No. 36661/68. Heading H3T. [Also in Division G4] The rapid build-up of current in an inductive load (e.g. a magnetic recording head) connected to one output electrode of a driver transistor is assisted by connecting in series with another output electrode a resistor which is shortcircuited under the control of a delay circuit, during the current build-up so that the transistor is saturated during this period. The concurrent application of " 1 " data and " write " pulses to diode gate 25, 26 cuts off transistor 18 and thus renders transistor 17 fully conducting. Its emitter switch D is short-circuited by a saturated transistor 21 rendered conducting by the input signals via transistors 19 and 20. Accordingly the full supply voltage is applied to the recording head winding E and its feeder cable 11 so that the cable is quickly charged and current build-up is rapid. After a delay determined by the time constant of capacitor 29 and resistors 31 and 32, transistor C becomes non- conducting, removing the short-circuit from emitter resistor 33. Transistor 17 comes out of saturation, its base potential rises until clamped by diode 58 and the transistor now operates in constant current mode to maintain a steady current in the recording head. Diodes 40 and 41 back-bias diode 30 between transient periods and resistors 49, 46 together with diode 36 backbias diode 37 to provide noise immunity. The right-hand part of the circuit operates similarly to write " 0 " data signals.
Patent GB-846216-A (GB)
Title: Float discharge device for rotatable type heavy-media separators
IPC: B03B5/42
Filed: 1958-11-14
Abstract: 846,216. Washing granular materials. WESTERN MACHINERY CO. Nov. 14, 1958 [July 24, 1958], No. 36665/58. Class 82(2) A rotary separator for sink and float separation has an overflow weir for the discharge of floats and at least one scoop associated with the weir to assist in discharging oversized particles. As shown, the separator comprises a rotary drum 12 provided with annular end-plates 36, 38. Aperture 39 in plate 38 forms the weir to which is attached scoop 78, said scoop comprising a rigid perforated semi-cylindrical plate 80. Material to be separated is fed into the drum via trough 62, floats discharging into launder 66 and sinks being dropped into trough 68 by lifter blades 40.