baber/WOPTO huggingface dataset:
Patent GB-1528189-A (GB)
Title: Radio receiver
IPC: G08G1/09
Filed: 1975-12-18
Abstract: 1528189 Radio signalling INTERNATIONAL STANDARD ELECTRIC CORP 18 Dec 1975 [21 Dec 1974] 51874/75 Heading H4L In a radio receiver having a bi-stable 20 which if a marked message is received connects an a.f. transmission arrangement 4, 5 to the output of a demodulator 3 for a carrier wave, a signal SK occurs if a transmitter identifying signal, say 57 kHz, is received with a level exceeding a threshold switch 12, a signal DK occurs if an identifying signal say 125 Hz modulated on the transmitter identifying signal is received with a level exceeding a threshold switch 18, a delay circuit 13 delays the signal SK with respect to the signal DK and a setting circuit 19, which receives the signals SK and DK, resets the bi-stable if only signal SK occurs and sets it if signals SK and DK occur and leaves its state unchanged if no signal SK or DK occurs or if only signal DK occurs. In the car radio shown with switch 30 in position I a circuit 28 such as an electromagnetic relay or the emitter-collector path of a transistor or an arrangement controlling the gain of a.f. amplifier 4 maintains signal transmission to speaker 5. In switch position II the transmission path 28 is closed only if the radio is tuned to a transmitter marked with the transmitter identifying pilot signal 57 kHz. In switch position III the path 28 is closed only during the transmission of, e.g. traffic information marked with a message tone of 125 Hz. LED's 26 and 27 indicate that a transmitter identifying signal and a transmission marked with a message tone are received. If when bi-stable 20 has been set by outputs from SK and DK the received signal fades the bi-stable 20 maintains the condition of the switch 28 and when the received signal is again of sufficient strength as signal SK is delayed by the delay circuit 13 until after signal DK occurs that state of the bi-stable remains anchoraged. In a modification (Fig. 2, not shown) exclusive OR gate 21 and AND gate 22 of the setting circuit 19 are replaced by AND gates (35, 36) and an inverter (37) and if there is no control signal at 29 a changeover switch (33) connects the input of the a.f. amplifier 4 to the output of a cassette recorder tone source 34.
Patent GB-1330692-A (GB)
Title: Semiconductor material cutting apparatus and method of making the same
IPC: B24D18/00
Filed: 1970-11-03
Abstract: 1330692 Abrasive tools SOLA BASIC INDUSTRIES 3 Nov 1970 [12 Nov 1969] 52274/70 Heading B3D [Also in Divisions B5 and C7] A cutter apparatus for cutting semi-conductor material comprises a rotatable body 9 having a surface 13 which extends to the periphery thereof and is normal to the rotational axis of the body, and an electroformed layer 21 of a matrix of abrasive particles in a metal binder disposed on the surface, the layer having substantially parallel sides and protruding radially beyond the periphery of the body to form a cutting blade. The body 1 is of aluminium or other suitable material and is initially machined to have the planar surface 13 and a tapered rear face (15, Fig. 1, not shown). After chemical cleaning, the surfaces of the body are masked except for an outer annular surface of the surface 13. A layer 17 of zinc about 10 microinches thick is first electrolytically deposited on the annular surface followed by a layer 19 of copper about 100 microinches thick. Finally, the layer 21 of nickel and diamond particles are electrolytically deposited on the surface to a thickness of 0À001 inch, the particles having a size of 4 to 6 microns. The particles comprise about 10% by weight, or about 25% by volume, compared with the nickel. The surface finish of the layer may be lapped and after the outside diameter of the layer has been machined, a bevel cut is made on the tapered rear face (15) to produce a surface 15<SP>1</SP> with the layers 17, 19, 21 extending beyond the periphery of the body. The layers 17, 19 may be etched away leaving only the layer 21 extending from the surface. The cutting wheel so formed may be mounted on a shaft 27 for cutting a semi-conductor wafer 29, Fig. 3, having a plurality of integrated circuits into dice, the wafer being mounted on a block 31. The cutting wheel may be formed with a plurality of layers 21, Fig. 4, in order to make a plurality of cuts simultaneously, the spacing 33 between the layers being equal to, or a multiple of, the spacing of the circuits. The cuts made by the wheel may extend completely through the wafer or the cuts may be made part way through the wafer from the back surface thereof and separation completed by etching. A tray 41, Fig. 5, having compartments 43 is disposed with partitions 45 aligned with the cuts 35 so that upon turning over of the wafer and tray, dice are received in the compartments.
Patent GB-1192318-A (GB)
Title: Means for Adjustably Supporting Lamps for Horizontal Process Cameras
IPC: G03B27/54
Filed: 1968-11-05
Abstract: 1,192,318. Projection printing apparatus. K. SCHUMACHER and E. SCHUMACHER [trading as KLIMSCH & CO.]. Nov. 5, 1968 [Nov. 7, 1967], No. 52459/68. Heading G2A. The lamp support in a horizontal process camera comprises an inverted L shaped frame 12, 12<SP>1</SP> the vertical limb of which is rigidly secured to a block 13 and the horizontal limb of which carries a pivotable support arm 8 which in turn supports lamps 5a, 5b on a post 6 slidable along the arm 8. This arrangement is provided to illuminate the side of the copyholder 18 at which a camera operator works, and thereby allows of access to the copyholder without lamp support structure having to be first moved. A second support arm 15 is pivoted to the vertical limb 12<SP>1</SP> and carries lamps 17a, 17b which illuminate the other side of the copyholder 18. As shown, the block 13 is secured to the movable carriage 2 on which the copyholder 18 is mounted. The block 13 may alternatively be secured to, or form part of, a separate movable carriage.
Patent GB-1482960-A (GB)
Title: Facsimile receiver with demodulator
IPC: H04N1/00
Filed: 1974-12-06
Abstract: 1482960 Facsimile receiver EXXON RESEARCH & ENG CO 6 Dec 1974 [7 Feb 1974] 52851/74 Heading H4F A facsimile receiver having noise reduction means, accepts f.m. signals a, Fig. 3, and produces a trigger pulse train b corresponding to zero crossovers in the f.m. signal a. The trigger pulses set a single shot multivibrator with a constant set time A, waveform c. The relevant grey level is determined by the average D.C. output of the multivibrator in each cycle which comprises the set period A and unset period S. This output is determined by the percentage of the multivibrator cycle A + S occupied by the set period A, defined as the ratio, A : (A+S). Waveform c represents a set period of approximately 56% of the multivibrator cycle, equivalent to white, waveform i represents a set period of 100% of the multivibrator cycle, equivalent to black. Waveforms d, e, f illustrate respectively f.m. input, trigger pulse train and multivibrator of an intermediate grey level. In the prior art, frequencies in the f.m. signal above that representing black, for example j, caused by noise lead to the occurrence of pulse trains k wherein the period between pulses was shorter than the fixed set time A, waveform l, of the multivibrator, consequently those pulses occurring during the set period fail to reset the multivibrator so forming white holes S, waveform l, in the signal designed to represent 100% or black level. The present invention utilizes additional reset circuitry, Fig. 2 (not shown), to generate narrow reset pulses m, Fig. 3, which are able to reset the set period of the multivibrator when the latter is in the set state resulting in the desired 100% set period A, waveform n, when blacker than black signals are detected. In the preferred embodiment Fig. 1 (not shown) the receiver has a revolving drum and axially movable stylus, and receives f.m. signals via a telephone link from a transmitter in which the original is mounted on a further revolving drum. Light from the original is incident on a photodetector the output of which is frequency modulated on to a carrier for transmission.
Patent GB-1023537-A (GB)
Title: Improvements in or relating to supporting stands
IPC: F16M11/38
Filed: 1964-12-30
Abstract: 1,023,537. Stands. JOMI INDUSTRI A.S. Dec. 30, 1964 [Dec. 30, 1963], No. 52855/64. Heading A4H. A stand for an electric hair dryer or a mercury quartz lamp has a tubular column 1 secured to a socket 2 having in a recess on the underside of a flange 3 a turntable 5 with three projections 9 to each of which a leg 10 journalled, the leg resting in a recess in flange 3 in the operative position, but when it is desired to fold the stand, turntable 5 is rotated about the longitudinal axis of the stand and the legs can then each be folded upwardly through a slot in the flange 3.
Patent GB-1354160-A (GB)
Title: Method and apparatus for treating wood chips
IPC: G21K1/00
Filed: 1971-11-16
Abstract: 1354160 Sterilizing wood chips RADIATION DEVELOPMENT CO Ltd 16 Nov 1971 [27 Nov 1970] 53050/71 Heading A5G [Also in Divisions D2 and H1] Wood chips are sterilized by being subjected to a beam of electrons whilst being pneumatically conveyed through pipe 12 to improve their storage qualities and the quality of the pulp produced therefrom. The electrons, which may be produced by a Van de Graaf generator 18, are projected into a scanner 20, which is provided with means for reciprocating the electrons in a linear path having its axis coincident with the axis of pipe 12. The latter may be surrounded by a cooling jacket 44.
Patent GB-1366700-A (GB)
Title: Arrangement for influencing the timee course of an output  quantity
IPC: G05B19/07
Filed: 1971-11-17
Abstract: 1366700 Temperature compensating arrangements HOTTINGER BALDWIN MESSTECHNIK GmbH 17 Nov 1971 [18 Nov 1970] 53443/71 Heading G1N An arrangement for varying the electric output signal from strain gauges 1-4 constituting a bridge monitoring the deformation of an elastic body comprises a temperature-dependent resistor 5 in thermal communication with the body and having electrical characteristics such that its resistance is significantly varied by the temperature change arising from the deformation of the body and being selectively connectable into one or other branch of the bridge whereby the variation of resistance of the resistor as the body loses heat, produced by the deformation, to its surroundings, is caused to vary the bridge output signal so as to compensate for the variations due to "creeping" i.e. due to non-ideal elastic properties of the body, the strain gauges and the adhesive. The resistor 5 is of copper or nickel and is adhered or welded to the surface of the elastic body. An adjustable resistor 6 is provided for adjusting the amount of compensation. In an alternative embodiment Fig. 2 (not shown) a further temperature-dependent resistor 7 is connected into the bridge circuit, but not in thermal communication with the elastic body, and provides ambient temperature compensation.
Patent GB-1411775-A (GB)
Title: Drum-type counters incorporating a resetting mechanism
IPC: G06M1/34
Filed: 1972-11-20
Abstract: 1411775 Resetting of counters COMPTEURS SCHLUMBERGER 20 Nov 1972 [19 Nov 1971] 53554/72 Heading G4D A counter has numeral drums 1-4 mounted on a longitudinally slotted shaft 5 which is rotated to drive resetting pawls 11 on each drum; transfer wheels mounted freely on an eccentric shaft 14 which is rotated through one half turn before and after resetting to disengage the transfer wheels from the numeral drums and then re-engage them; and stop members 18-21 mounted on a further shaft 22 rotated through a quarter turn before and after resetting to bring the stop members into the paths of pegs 13 projecting from each drum, thus to positively arrest the drums in the zero position. The shaft 22 is mounted in slots 23, 24 and spring urged to the position of Fig. 2; the shaft moves against spring pressure so that the stops 18-21 cannot jam with the pegs 13 during resetting from a position close to zero.
Patent GB-1152120-A (GB)
Title: Improvements in or relating to Hydraulic Accumulators
Inventor: BECKER KARL-HEINZ
IPC: F15B1/20
Filed: 1967-11-24
Abstract: 1,152,120. Hydraulic accumulators. V. LANGEN [trading as LANGEN & CO.]. Nov. 24, 1967, No.53668/67. Heading F1P. A bladder 8, Fig. 1, which divides a hydraulic accumulator casing 2, 3 into compressed gas and pressurized liquid chambers is provided at its closed end with a boss 16, Fig. 2, which is engaged by a circular recess 15 in a rigid circular member 14 which when the liquid chamber is empty closes the liquid inlet and outlet opening 13; the diameter of the mouth of the recess 15 being less than that of the base thereof.
Patent GB-1513380-A (GB)
Title: Position indicating system
IPC: G01B11/03
Filed: 1974-12-16
Abstract: 1513380 Optical position sensing ZED INSTRUMENTS Ltd 12 Dec 1975 [16 Dec 1974] 54262/74 Heading H4D The position of a light, e.g. laser, beam relative to a light sensitive target is used e.g. in a system for determining the exact position of tunnel boring machinery. A laser 12 disposed in tunnel 10 emits a beam in a direction in which it is desired that a boring machine (not shown) should cut into a work face 11. A position sensing unit 13, see also Fig. 3 (not shown), disposed on the boring machine senses deviations in the relative position of the beam from axis (22), and comprises a lens (20) with a diffusing layer (21) whereby a virtual source is produced, its respective orthogonal position co-ordinates being detected by photodiode arrays (24) and (25) situated off axis (22). Each array comprises an integrated array of photodiodes. Array (24) senses the horizontal position of the image of the beam which is distorted into an elongate shape perpendicular to the longitudinal extent (28) of the diode array by cylindrical lens (26). Identical array (25) is arranged to sense the vertical position of the beam, and is disposed mutually perpendicular to array (24). The diode array output video signals are processed in time multiplex fashion, in processing circuitry, Fig. 4. Timing and control logic 30 controls shift registers associated with each diode array and selects the array to be processed via switch 31. Circuit 30 provides 2 non-overlapping clock pulses which shift through each shift register and sequentially open and close MOS switches to connect each photodiode in turn to the video output line A. A measurement sequence includes two such scans of each array, and in each scan the charge lost by each diode between the non- overlapping clock pulses is proportional to the total amount of light falling on the diode. The processing uses analogue integrating techniques to detect the centre of light distribution on each array. In a further embodiment (Figs. 6 and 7, not shown) a third linear array of photodiodes is provided to measure in addition to the orthogonal coordinates x and y, one component of angular inclination of the beam to the axis of the apparatus.
Patent GB-1455457-A (GB)
Title: Method and arrangement for recovering geothermal energy
IPC: F24J3/08
Filed: 1973-11-27
Abstract: 1455457 Wells SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 27 Nov 1973 54875/73 Heading E1F [Also in Division F4]  A method for recovering geothermal energy from a permeable, hot water-containing formation 4, such a formation being sufficiently removed from the magna that the temperature conditions therein are such that the hot water content is at a pressure substantially equal to the hydrostatic pressure prevailing at the level of the formation, comprises the steps of pumping water into the formation via an injection well or wells 1, pumping said hot water from said formation via a production well or wells 2, and passing the pumped-out water through a heat exchanger 17 to recover the thermal energy. Any number of wells may be provided, so long as the wells are arranged in a pattern whereby hot formation water is displaced to production wells by means of relatively cold water injected via injection wells.
Patent GB-1120212-A (GB)
Title: Improvements in or relating to stocking forms
Inventor: SVAROVSKY KURT
IPC: D06C5/00
Filed: 1965-12-30
Abstract: 1,120,212. Stocking forms. BUNTSOCKENWERKE "MAX ROSCHER" VEB. 30 Dec., 1965, No. 55225/65. Heading A3V. [Also in Division D1] In an adjustable stocking form a toe portion 5 is slidable on the foot portion 2 by engagement of a key 3 in the foot portion in a groove 4 in the toe portion, a spring catch 7 on the key 3 being engageable in a selected one of a series of holes 8 in the toe portion. The stop positions for different sizes may be indicated on the foot portion. The rear edge 9 of the toe portion and forward edge of the foot portion may be chamfered.
Patent GB-1192078-A (GB)
Title: Hot Water Cylinder Jackets
Inventor: BLUNDELL KENNETH
IPC: F24H1/18
Filed: 1967-12-07
Abstract: 1,192,078. Hot water cylinder jackets. P.H. THERMAL PRODUCTS Ltd. 30 Jan., 1969 [7 Dec., 1967], No. 55648/67. Heading F2X. A section of a hot water cylinder jacket is made by sewing or welding a shaped piece of gauze material 6 to one side and one end of a rectangular shaped insulating body 5 to form a pocket which is thereafter turned inside out to contain the excess of body 6 lying outside the pocket and form a shaped end to the body. The body may be a sheet of insulant or a plastics envelope containing an insulant. A tab 7 secured to the body and projecting into the pocket assists in the step of turning inside out.
Patent GB-1281165-A (GB)
Title: Secateurs
Inventor: COUGHTRIE THOMAS ROBB
IPC: A01G3/02
Filed: 1968-11-25
Abstract: 1281165 Secateurs T R COUGHTRIE 5 Jan 1970 [25 Nov 1968] 55717/68 Heading B4B A secateur comprises a jaw 11 fixed to a handle 10, a second jaw 12 pivotally connected to the handle 10 and to a second handle 13 and a link 14 which, together with the handle 13, forms a toggle linkage. In a modification, Fig. 3, a jaw 21 is fixed to a handle member 20 and a second jaw 23 is pivotally connected thereto and to a lever 25. A lever 24 is pivotally connected to the free end of the lever 25, and to the member 20, the lever 24 having a slot in which a pin 29 on a second pivoted handle, 22, is movable. A coil spring is provided for maintaining the jaw 12 or 23 in an open position, the latter being kept closed by a clip when the secateur is not in use.
Patent GB-1298417-A (GB)
Title: Method of open end spinning of yarn and spinning chamber for performing said method
IPC: D01H4/08
Filed: 1970-11-25
Abstract: 1298417 Break spinning; liquid treatment VYZKUMNY USTAV BAVLNARSKY 25 Nov 1970 [9 March 1970] 56035/70 Headings DID and D1F In a break spinning machine liquid is fed from a magazine 31 via a dosing device 30 to the spinning surface 11 of the spinning chamber 5. The liquid is sucked in by the underpressure generated by the spinning ventilating ducts 13. The liquid is admitted via the yarn delivery duct 22 and may comprise a treatment fluid e.g. dyeing agent, sizing agent or antistatic agent. The liquid level is determined by relief openings 14 (see also Fig. 2, not shown) which open into ducts 13 or outwards through the chamber wall. Liquid delivery may be pulsed or continuous.
Patent GB-1319508-A (GB)
Title: Inspection hole for a road
IPC: E02D29/14
Filed: 1970-12-01
Abstract: 1319508 Manhole covers and frames PONTA-MOUSSON SA 1 Dec 1970 [4 Dec 1969] 57227/70 Heading E1G A manhole cover and frame assembly comprises a cover T seated in a height-adjusting intermediate frame R which is in turn seated in a fixed frame C, the frames and cover being interlocked in series by the provision of cooperating hooks, inclined lugs and notches. As shown the frame R is circular and has two depending hooks 10 cooperating with a notched annular rib 3 and also, Fig. 2 (not shown), an inclined depending lug (11) cooperating with an inclined notch (5), the frames being interengaged by a tilting action, whereafter the frame R is rotated to the locked position shown. Similar interlock formations are provided between the cover T and frame R. In a modification employing two superposed intermediate frames, Fig. 4 (not shown) the lower and fixed frames (R', C) are not interlocked, but are provided with cooperating stepped ramps for height adjustment.
Patent GB-1157340-A (GB)
Title: Pressure-Sensitive Record Medium
IPC: B41M5/26
Filed: 1966-12-28
Abstract: 1,157,340. Colour-reactive record sheets; papermaking. INTERNATIONAL BUSINESS MACHINES CORP. 28 Dec., 1966 [3 Jan., 1966], No. 57906/66. Headings D2A and D2B. Lignin is used as a reagent in colourreactive record sheets. The other reagent may be phloroglucinol, 3-hydroxy-phenylurea, aniline hydrochloride, 4 - aminophenyl - glycine hydrochloride, NN-dimethyl-p-phenylenediamine hydrochloride, 3-aminopyridine, skatole, 3,4-dimethyl-5-pyrazolone, 2-methylindole or cobalt thiocyanate. The sheet may be of paper made from wood-pulp prepared by a process that leaves sufficient lignin in the pulp, or may be impregnated or coated on- or-off-machine e.g. at the calendar stacks by lignin. The other reagent may be encapsu lated, e.g. in polystyrene, and the capsules distributed through the thickness of the paper or applied as a coating, which may contain as a binder polyvinyl alcohol, polyvinyl acetate or nylon. Four embodiments are described; (1) capsules containing reagent are distributed throughout a sheet of paper containing lignin; (2) paper containing lignin is coated with capsules and binder; when pressure is applied to either of these sheets, the capsules are ruptured and an image produced in the sheet; (3), an upper sheet of paper has a coating of encapsulated reagent and binder, and is used with a lower sheet of paper containing lignin, when pressure is applied the capsules are ruptured and enough reagent transferred to the lower sheet to an image thereon; if the upper sheet is of embodiment (1) it too will form an image, or it of ordinary paper it will receive a mark from a conventional pen, pencil or type bar; (4) an upper sheet as in embodiment (I) is coated as in embodiment (3), a middle sheet contains lignin and is similarly coated and a bottom sheet contains lignin; when pressure is applied, reagent is released within the upper sheet to form a mark thereon, and in the coatings on the upper and middle sheets from which enough is transferred to the middle and lower sheets to form marks thereon.
Patent GB-1418875-A (GB)
Title: Diaphragm boxes
IPC: B60Q1/105
Filed: 1972-12-15
Abstract: 1418875 Adjusting vehicle headlamps ROBERT BOSCH GmbH 15 Dec 1972 [20 Dec 1971] 57908/72 Heading F4R [Also in Division F1] In a system for controlling the inclination of vehicle headlamps in accordance with the trim of the vehicle body fluid pressures from a pair of detectors associated with the front and rear axles are applied through conduits 9, 10 to opposite sides of a flexible diaphragm 7 and the resultant displacement of the diaphragm, which is proportional to the pressure differential, is transmitted to the headlamps by a push-rod 19. The diaphragm is sandwiched between discs 17, 18 which abut pre-stressed centring springs 15, 16, the opposite ends of the springs being in engagement with a housing 3, 4 provided with a fastening screw 21. In a modification the push-rod 19 controls an actuating valve.