baber/WOPTO huggingface dataset:
Patent GB-647336-A (GB)
Title: Air-conditioning apparatus
IPC: F24F6/04
Filed: 1948-12-15
Abstract: 647,336. Conditioning air. HOPE'S HEATING & ENGINEERING, Ltd., and BARHAM, H. C. F. Dec. 15, 1948, No. 32424. Drawings to Specification [Class 137] [Also in Group XII] In an apparatus for conditioning air, wherein the air is humidified by vapour from a water-containing pan in a casing which encloses also a fan for moving air from the casing inlet, past electrical heaters to the casing outlet, the water level in the pan is maintained constant by a bird fountain feed system. The bird fountain is arranged in a supply tank which is either entirely separate from the air-conditioner and is connected to the pan by a pipe, or is mounted on the casing of the conditioner. The casing carries externally arranged devices for controlling the air-heaters in accordance with the temperature of the surrounding air, and for controlling electric heaters in the pan in accordance with the temperature and humidity of the surrounding air. Gases, other than air, may be conditioned, e.g. ethylene used in fruit-ripening chambers.
Patent GB-1039650-A (GB)
Title: Gas turbine engine cooling
IPC: F02C7/18
Filed: 1965-07-29
Abstract: 1,039,650. Gas turbine engines. GENERAL MOTORS CORPORATION. July 29, 1965 [Aug. 21, 1964], No. 32424/65. Heading FIG. A gas turbine engine comprises a compressor, an air pre-heater, combustion equipment and a turbine connected to drive the compressor, there being a passage to convey a portion of air from the compressor by-passing the air preheater and the combustion equipment to cool the turbine rotor, and a further passage to convey a portion of the compressed air which has passed through the air preheater but not through the combustion equipment, to the periphery of the turbine rotor adjacent the inner end portions of the blades. The engine shown comprises a centrifugal compressor impeller 14 and a turbine rotor 12 which are mounted on a common shaft 15, and a separate power turbine rotor 17. The engine comprises also a rotary type air preheater which comprises an annular matrix 49 arranged for rotation about a vertical axis, the matrix passing through a partition 39 which separates the air and exhaust gas flow paths. A combustion chamber 11 is disposed vertically within the space bounded by the matrix 49 and the partition 39, air preheated in flowing through the matrix 49 passing into the combustion chamber to which fuel is supplied by an injector 76. The gases discharge from the combustion chamber through a turbine inlet structure 67, 98 and are directed by nozzle guide vanes 94 on to the first stage turbine rotor blades 96 then on to the second stage turbine rotor blades, the gases discharging through the matrix 49 thereby heating it and finally discharging to atmosphere. A casing 23 extends around the shaft 25 and defines with the sheet metal wall 88 a passage through which air from the compressor may flow to the space 122 upstream of the diaphragm member 70, Fig. 2, not shown. This air passes from space 122 through orifices 124 in the diaphragm on to the upstream side of the turbine rotor disc 12 thereby having a cooling effect. A portion of compressed air which has passed through the matrix 49 and been preheated thereby passes through openings 112 and through a passage defined between walls 98 and 100 and issues through annular outlet 110 to flow adjacent the rim of the rotor disc 12 and the inner ends of the blades 96 mounted thereon thus having a cooling effect on these parts.
Patent GB-464575-A (GB)
Title: Curved sliding clasp fastener
IPC: A44B19/06
Filed: 1936-11-27
Abstract: 464,575. Sliding - clasp fasteners. SCHATZKY, F. Nov. 27, 1936, No. 32568. [Class 44] In sliding-clasp fasteners for application to curved slits or apertures the fastener elements are shaped so that contacting faces of adjacent elements lie in planes normal to the curve of the slit &c. and converging towards the centre of curvature. Fig. 2 shows the application to a slit s of circular form in which the elements a<1>, all taper towards the centre o. The application to apertures of varying curvature, and disposed on flat, conical, or cylindrical surfaces is described. The slider may have elastic walls and a laterally displaceable wedge member to allow adaptation to the curve of the fastening, Fig. 7, showing a slider with rigid back and front plates 2 and blade-spring side walls 4<1>, 4<11>, the wedge 6 being pivoted at 7. Alternatively, the slider may be shortened by omitting all or part of the usual side walls at the narrow end of the slider, or, where the curvature is constant, as in Fig. 2, the slider may be rigid and curved to correspond with the curve, as in Fig. 8.
Patent GB-1174126-A (GB)
Title: A Scanning Device comprising an Illumination Source
IPC: B23K7/00
Filed: 1967-07-14
Abstract: 1,174,126. Light scanning arrangement. MESSER GRIESHEIM Gm.b.H. July 14, 1967 [July 14, 1966], No. 32586/67. Heading G1A. A device for producing a moving beam or spot of light comprises a gas and/or vapour discharge lamp having means 4, 5, Fig. 1, to deflect in an oscillatory or rotatory manner at least part of the luminous portion 8 of the discharge path. The deflecting means may be electromagnetic, or electrostatic, and the moving beam may be taken off in the direction of the discharge, or at right angles to it along a path which may include mirrors. Two deflection systems may be used to rotate the deflected discharge path and two beams may be withdrawn at right angles. A device 1 is included in a curve-following system, in which the portion of the moving discharge 8 as limited by mask 7, forms a spot image 14 on the plane of the curve, through a lens 6, and a half-silvered mirror 9; and the light reflected from the plane of the curve is applied to a pair of detectors 16, 17 to control the following head through a differential amplifier 27 fed from the light modulating source and a servomotor 23. Xenon, argon, and mercury vapour lamps are exemplified.
Patent GB-1354748-A (GB)
Title: Sequential counting systems
Inventor: VERMEULEN M
IPC: H04Q3/42
Filed: 1971-07-12
Abstract: 1354748 Thyristor counter COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 12 July 1971 [10 July 1970] 32673/71 Heading G4A A counter comprises a series of sequentially firing thyristors and a series of indicating elements (e.g. transistors) which indicate the count reached.  1st embodiment, Fig. 2.-When a first pulse is received, various relays are set, and at the end of this pulse thyristor 1TF1 fires, transistor T1 conducts and wire 1 is marked. At the start of the second pulse thyristor 2TD2 fires and at the end of the second pulse thyristor 3TF2 fires, transistor T2 conducts, wire 2 is marked, transistor T1 no longer conducts and wire 1 is no longer marked. This continues for succeeding pulses with only one wire being marked at a time which indicates the count. The embodiments shown count to 5 but further counting to 10 is possible using thyristor TEF to start counting from 1TF1 again. A further marking circuit (Fig. 3, not shown) indicates a count of up to 10. 2nd embodiment, Fig. 5.-Here wire 1 is marked at the end of the first pulse, thyristor 1TD2 fires at the start of the second pulse, wire 2 is marked at the end of the second pulse and wire 1 unmarked, and so on. It is stated that the PNP transistors can be replaced by NPN and that the counter is for use in telecommunications.
Patent GB-1334463-A (GB)
Title: Frequency measuring circuits
IPC: G01R13/30
Filed: 1971-07-13
Abstract: 1334463 Displaying frequency characteristics SIEMENS AG 13 July 1971 [22 July 1970] 32686/71 Heading G1U [Also in Division G4] A variable frequency oscillator is controlled to generate a frequency sweep and to measure the frequency at a selectable point in the sweep an adjustable voltage representing a desired point is compared with the voltage controlling the oscillator frequency and upon a predetermined condition, e.g. equality, the oscillator frequency is gated to a counter for a predetermined period. In the application shown in Fig.1, the upward and downward frequency sweep of an oscillator 1, controlled by a saw-tooth voltage US from generator 3, is applied to a four-terminal network X whose output after amplification (16) and rectification (17) controls the deflection plates of a CRT 19, with the control voltage US as the time base. Alternatively the four-terminal network output may be digitized in an analyser 25. A voltage U1, representing the point in sweep at which the frequency is required, is compared in a comparator 4 with the control voltage US, and upon equality diving the upward sweep only a timing pulse 5 operates the circuit 6 to generate a pulse 7 of predetermined length which opens gate 8 to feed the oscillator output Uv to a counter 9. The result is displayed, or fed to a store, upon a pulse Uz from circuit 6. Circuit 6 sends either the comparator pulse 5, or a pulse occurring at the centre of pulse 7, to the CRT 19 to produce a mark 24 indicating the instant at which the frequency is measured. Circuit 6, Fig.6 (not shown) includes a further counter which counts clock pulses upon the arrival of pulse 5 until a predetermined count, so defining the gate pulse 7. In a further arrangement, Fig. 4 (not shown) the frequency in the sweep is measured at several points, there being a separate comparator 4 and separate input voltage Ul for each point.
Patent GB-858951-A (GB)
Title: Process for manufacturing pipes from plastic material
IPC: B28B21/42
Filed: 1957-10-18
Abstract: 858,951. Moulding pipes. MARCHIOLI, G., and GREMIGNI, G. Oct. 18, 1957, No. 32687/57. Class 87(2). A plastic material 11, e.g. asbestos cement, is placed around an expansible cylindrical core and wrapped with sheet material 13, the assembly of core and coating into a tubular mould 16, the core expanded and then contracted, and finally the assembly extracted from the mould in an axial direction. The core comprises a metal tube 1 closed at its ends by plugs 2 and 3, plug 2 being axially perforated at 4. A tubular-rubber coating 8 is fitted over the tube 1 and may be expanded by water or compressed air pumped into perforation 4 and thence through apertures 6 and 7 in plug 2 and tube 1 respectively. The sheet material 13 may be permeable, e.g. of fine mesh wire gauze or net, in which case the wall of the mould 16 is provided with channels 17 so that excess water in the plastic material 11 can be removed.
Patent GB-1513567-A (GB)
Title: Position detectors
IPC: G01D5/20
Filed: 1975-08-05
Abstract: 1513567 Measuring displacement electrically NEWALL ENG CO Ltd 16 July 1976 [5 Aug 1975 17 Feb 1976] 32724/75 and 6258/76 Heading G1N(A) A member movable parallel to a row of steel balls 1 a carries means 5 for setting up a periodically varying magnetic field along the row and at least two pick-up coils 6 for sensing the phase displaced variations produced in the magnetic field by relative movement between the row of balls and the said movable member. In a further embodiment Fig. 4 (not shown) the transmitting coil (5) and n pick-up coils are coaxial with the axis of the balls, the transmitter coil consists of a number of portions connected in series at spacings of <SP>d</SP>/ n , where d is the ball diameter, and each of 4 pick-up coils (6, a, b, c, d) comprises three portions each portion being adjacent the same position on three consecutive balls.
Patent GB-1279159-A (GB)
Title: Pulse generator
IPC: B60Q1/38
Filed: 1969-06-27
Abstract: 1279159 Pulse generators TELEFUNKEN PATENTVERWERTUNGS GmbH 27 June 1969 [28 June 1968] 32762/69 Heading H3T [Also in Division G4] In a pulse generator having a trigger stage 1 for periodically interrupted operation of a plurality of parallel connected loads, such as lamps L1, L2 or L3, L4, a resistor R 0  is connected between the loads and the supply voltage in the intervals in operation such that during the intervals in operation a measuring current flows through the load to cause a volt drop which is supplied to a switch T3, T4 and if one or more of the loads fails the state of the switch T3, T4 changes during the intervals in operation in comparison with that with intact loads so that voltage divider R1, R2 alters the charge on the timing capacitor C of the trigger stage 1 so as to alter the pulse frequency of the generator. As shown in a turn indicator system for a vehicle with switch S L  in the mid position the transistor T1 is on and T2 is off and relay contacts S R  are open. When a turn position a or b is selected the initial voltage drop across R0 causes T2 to turn on, T1 to turn off and relay R closes its contacts S R  which lights the lamps L1, L2 or L3, L4 selected. Capacitor C holds T1 off and discharges from a negative condition to a positive voltage via R T  until T1 again turns on. This cuts off T2 and opens relay contacts S R . Capacitor C now discharges to its negative charged condition via R7 and R1 so that T2 turns on and T1 turns off and then the above is repeated. During the interval when the load lamps L1, L2 or L3, L4 are off and with intact loads the measuring current via R0 biases T4 on and T3 off. Failure of one or more of the load lamps L1, L2 and L3, L4 causes T4 to turn off and T3 to turn on during the interval in operation. Conduction of T3 connects an additional resistor R2 to alter the time constant and frequency of the trigger stage 1 so that an alarm lamp Lk connected across the switch contacts a, b flashes at a different frequency to that with intact loads to indicate the failure. The trigger stage 1 and indicating stage 2 apart from C, R0, relay R and the lamp loads can be in integrated circuit form. Hazard warning.-All the lamps L1-L4 may be flashed together.
Patent GB-663839-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J31/04
Filed: 1947-12-12
Abstract: 663,839. Cathode-ray tubes. WESTERN ELECTRIC CO., Inc. Dec. 12, 1947 [Dec. 13, 1946], No. 32805/47. Class 39 (i). [Also in Groups XXXV, XL (b) and XL (c)] In a modulator for a multiplex telephone - system comprising a cathode-ray tube in which an electron beam is deflected by plates 19, 20, Fig. 1, in a circular path and is deflected radially by the individual signals applied to plates 42 and a common plate 35, and then strikes a target 26, undesired variations in the trace caused by variations in the supply to deflecting plates 19, 20 are compensated automatically by means of an auxiliary deflecting system 52, 55. To achieve this, the beam normally rotates in grazing incidence with disc electrode 24 which is connected to the input resistance of an amplifier, Fig. 6 (not shown), the output of which is applied between electrodes 52, 55, and variations in the beam deflection cause variations in the current to electrode 24 and therefore corresponding voltage variations applied by the amplifier to electrodes 52, 55 which restore the beam to its correct path. In a modification, the current collected by electrode 24 is amplified by secondary emission within. the tube and the feed-back to the amplifier is taken from the secondary emission collector 50. The electrodes 24, 35, and 26 are carried on a central member 21, 23, 55 by insulating collars 27, 28, 29 and nuts 30, 31, 32. Leads to electrodes 24, 35 are taken through eyelets 47, 49 in electrodes 35, 26 to lead-in wires at 12. An auxiliary collector 33 is provided. The signal deflecting arrangement is formed as a unitary structure, the deflector plates 42, Fig. 3, being held by tabs 43 on insulating support 36. The support 36 and electrode 35 are slotted and are held together by metal strips 37 slotted at one end and coated on both faces with aluminium oxide; the strips engage the deflector plates 42 and serve as spacers and shields. The support 36 has reinforcing rings 40, 41. The adjacent faces of the deflector plates are frusto-conical, as shown in Fig. 1. Electrode 52 may be a metal cylinder or a colloidal graphite coating on the envelope wall. The target 26 comprises a disc having on its surface a plurality of fine lines with radial ends and non-radial intermediate portions; the disc may be of silver magnesium alloy and the lines may be of carbon printed thereon, the secondary emission coefficients being greater and less than unity respectively. Alternatively the secondary emission coefficient of the lines may be greater than that of the disc. The output from the target 26 is a pulse position modulated multiplex signal. When the secondary emission coefficient of electrode 24 is less than unity, e.g. when it, is of carbonized nickel, an annular shield may be provided between electrodes 24, 35 to shield electrode 24 from secondaries released from metal strips 37; when it is greater than unity, electrode 50 collects the secondaries therefrom. Specifications 663,837 and 663,838 are referred to.
Patent GB-1325269-A (GB)
Title: Surgical or dental implant
Inventor: STEINEMANN S
IPC: A61K6/04
Filed: 1971-07-13
Abstract: 1325269 Alloy implant INSTITUT DR ING REINHARD STRAUMANN AG 13 July 1971 [15 July 1970] 32811/71 Heading C7A A surgical or dental implant (i. e. a plate for attaching bone parts for fixing them in a predetermined relative position) is made from an alloy consisting, apart from incidental impurities of:- and up to 1% in total of dissolved elements such as C, H, N and O, the balance being Ti and/or Zr, with no more than 75% of the total alloy of Zr. The alloy is free from Co, Cu, Ni, Sn and V.
Patent GB-266095-A (GB)
Title: Improvements in and relating to gaiters for motor vehicle and like springs
IPC: F16F1/24
Filed: 1925-12-29
Abstract: 266,095. Wilcot (Parent) Co., Ltd., and Cottrell, W. F. Dec. 29, 1925. Gaiters.-In a rigid gaiter for the springs of motor vehicles &c. and of the kind having separable members adapted to encase the spring, the gaiter as a whole is adapted to be mounted intermediate the ends of the spring and to be capable of movement thereon, and the portion applied to the underside of the spring is provided with means for maintaining a clearance space or channel between the spring and the bottom of the gaiter. As shown, the gaiter comprises two rigid parts 2, 3 of thin sheet metal &c. fitting one over the other, and the spacing means consists of two curved pieces 5 of sheet metal or other resilient material covered with leather, felt, &c. 6 and fitting snugly within the side walls of the part 3 to which they are riveted. A continuous strip of metal with upturned ends may alternatively be employed as the spacing means. Leather or other pads 18 are secured inside the ends of the part 2 to ensure a leak-tight connection between the spring and the gaiter which may contain lubricant. The parts 2, 3 are secured together around the spring by beaded studs 10 on the part 3 engaging slots 9 in the part 2 and by a locking pin passed through registering holes 12 in the parts and a transverse tube 13 in the part 3, the end of the pin being bent at right angles and engaged by a clip 15.
Patent GB-387073-A (GB)
Title: Revolving needle bar for embroidery machines
IPC: D05C11/04
Filed: 1931-11-27
Abstract: 387,073. Embroidery machines. GORSE, J. S., 8, All Saints Terrace, Notting- ham. Nov. 27, 1931, No. 32893. [Class 112.] Needle bars in embroidery machines have front and rear needles which are brought into or out of action by turning the needle bar, for ease in changing the colour of the thread. The needle bars A are mounted on trunnions B fitting in arms C which in turn can be swung on a shaft D. In the position shown, the needles E are in embroidering position. To place the needles E in inoperative position and bring the needles F into embroidering position, the arms C are raised about the shaft D to the position shown in dotted lines and the needle bars A are rotated on their trunnions through 180‹.
Patent GB-492429-A (GB)
Title: Improvements in or relating to alternating current switching devices
IPC: H02M1/26
Filed: 1937-11-29
Abstract: 492,429. Arc-rupturing in switches. SIEMENS -SCHUCKERTWERKE AKT.-GES. Nov. 29, 1937, No. 32968. Convention date, Nov. 28, 1936. [Class 38 (v)] [Also in Group XXXV] Relates to a switching arrangement in which chokes 10, Fig. 1, of variable impedance are arranged in series with the switch contacts 4, 5, 6 to effect commutation and consists in the provision of uncontrolled uinilaterally conductive devices 7, 8, 9 in parallel with the switch contacts. These are to enable the chokes to operate effectively immediately before the associated contacts close and also immediately after they have opened. In the form shown in Fig. 1, variation in the impedance of the chokes is effected by designing the cores to saturate at a low value of current. Some adjustment of choke design such as selection of material for the cores, insertion of air gaps &c. may be necessary to compensate for hysteresis. Fig. 10 shows an arrangement in which premagnetization is used to overcome the effect of hysteresis in the chokes 10, 11, 12. Each choke is provided with two premagnetizing windings 15, 18 which are fed with phase displaced unidirectional current impulses from rectifiers 21, 22 respectively to produce an alternating magnetic bias. Specification 492,369 is referred to.
Patent GB-781064-A (GB)
Title: Improvements in frequency selectors for receiving individual frequencies in the uhf bands
IPC: H03J5/02
Filed: 1953-11-27
Abstract: 781,064. Radio receiving apparatus. STANDARD COIL PRODUCTS CO., Inc. Nov. 27, 1953 [Dec. 12, 1952], No. 33037/53. Drawings to Specification. Class 40 (5). The subject-matter of this Specification is substantially the same as that of Specification 772,839 but the claims differ. Specification 733,005 also is referred to.
Patent GB-392968-A (GB)
Title: Improvements in carburetors
IPC: F02M69/00
Filed: 1931-11-28
Abstract: 392,968. Spray carburetters ; pumps. BENDIX AVIATION CORPORATION, 105, West Adams Street, Chicago, U.S.A. Nov. 28, 1931, No. 33049. Convention date, Dec. 4, 1930. [Classes 7 (ii) and 7 (iii).] In a combined carburetter and impeller, a primary mixture formed at a point where the air acquires a high speed, is enriched as it passes through the impeller which distributes it to the engine manifold. Fuel is drawn from a float chamber 1, via a metering orifice 3a, to an annular chamber 4 which communicates with nozzles 27 and a nozzle 22 of a sleeve 21 controlled by a needle valve 20. The air is whirled on entry by a spiral-shaped chamber 11 and tangential tapering vanes 15 ; the mixture is controlled by a sliding annular valve 16 operated by a lever 35, a push rod 36 ensuring that the valves 16, 20 are closed simultaneously; the connecting lever 39 is, however, flexible so that the fuel valve 20 can be opened at starting by the hand control 42 of the surrounding sleeve 21. Fuel is drawn from a chamber 55 in the impeller wheel through passages 54 which terminate round the hub as shown, or at the blade tips, there enriching the main .charge which is distributed to the combustion chambers by passages 10. In a modification, Fig. 5, the air enters through a Venturi tube 63 having fuel orifices 64 supplied from a float chamber 67 through a nozzle 66 ; the enriching fuel passes through a constriction 73, surrounded by an adjustable baffle 74, up a tube 71, and past a throttle valve 85, adjusted by a lever 86 having an adjustable stop 88. The main throttle valve 61 is linked to a spring- pressed diaphragm 101, the lower side of which is kept at atmospheric pressure, while the other side is connected to the induction passage by bores 111, 109, and to the atmosphere, by a passage 110, controlled by a valve 114, lifted by a cam 95 ; when the cam is rotated to close the valve, an arm 92 of the operating lever strikes the lever 86 and the mechanism ensures that the tube 71 is supplied with fuel while suction is building up, above the diaphragm, to open the valve 61. As modified in Fig. 6, a throttle valve 126 is operated by a plunger 127 according to the difference in pressure on the two sides of a diaphragm connected to points 132, 135 below and above the Venturi tube 63.