baber/WOPTO huggingface dataset:
Patent GB-814632-A (GB)
Title: Improvements in or relating to amplitude modulated carrier wave transmitters
IPC: H03C1/06
Filed: 1957-04-12
Abstract: 814,632. Modulating systems. TELEFUNKEN G.m.b.H. April 12, 1957 [May 15, 1956], No. 12024/57. Class 40 (5). In an amplitude modulated carrier wave transmitter in which distortion is reduced by demodulating the modulated waves from an output stage and comparing the demodulated waves with the modulating signal to derive a distortion signal, the carrier frequency output from the oscillator 1, together with the modulating signal M, is applied to a main amplifier and modulator 2, which may be designed to have a high efficiency with a certain amount of distortion. The output of the modulator 2 is fed to an impedance bridge network 4 where it is combined with the output of a further amplifier and modulator 3, also supplied from the oscillator 1, which is only required to give a relatively small output and to which the distortion signal is applied as a modulation signal. The transmitting aerial 5 is connected to the opposite diagonal of the bridge 4. An output from either the modulator 2, or aerial 5, is taken via a demodulator 9, amplifier 10, and adjustable phase shifter 11, to an impedance bridge 12 where it is differentially combined with the original modulation signal M to produce a distortion signal. The distortion signal is applied as a modulating signal to the modulator 3, a phase shifter 13 being adjusted so that the distortion components in the two signals from the units 2 and 3 respectively are in phase opposition. In an alternative arrangement, Fig. 3, the carrier frequency from the oscillator 1 is fed to the amplifier and modulator 3 whose output is fed to the cathode circuit of the grounded grid modulator stage 16. The modulating signal applied at M is amplified at 17 and fed to the anode circuit of the stage 16 which also allows a small portion of carrier unmodulated by the signal from 17 to pass to the aerial 5. To correct for distortion an output which is taken from the aerial 5 via a demodulator 9 is superimposed upon the modulating signal which is fed in from M via an adjustable phase shifter 18 and utilized to effect modulation in the unit 3.
Patent GB-105190-A (GB)
Title: Drying Apparatus.
Inventor: SOMMERMEYER AUGUST
IPC: F26B11/04
Filed: 1916-08-26
Abstract: 105,190. Sommermeyer, A. Aug. 26, 1916. Continuous-discharge apparatus, rotary.-Consists of a method of drying a mixture of a solid with an agglutinating-medium by subjecting the mixture to the disintegrating action of a rotary system of internally-heated ribbed tubes. The material is fed into a rotary drum a by a worm g and delivered at the opposite end by a similar worm g<1>. The casing carries a reel of tubes d, through which steam passes, these tubes being provided with ribs &c. d<1>. The drum is jacketed, the steam passing from the tubes d to the head e and thence to the outlet s. Specification 13242/92 is referred to.
Patent GB-398581-A (GB)
Title: Permanent magnet for electromagnetic loudspeakers
IPC: H04R11/00
Filed: 1932-04-27
Abstract: 398,581. Loud-speakers. BRITISH GOLDRING PRODUCTS, Ltd., 119, Finsbury Pavement, London. April 27, 1932, No. 12130. Convention date, Jan. 30. [Class 40 (iv).] A permanent magnet for an electromagnetic loudspeaker has the air gap e in which the armature is adapted to operate formed near one side of the horseshoe magnet a between an adjustable polepiece c on the magnet arm b and the other arm d of the magnet. According to a modification (Fig. 2, not shown), the end of the arm d may be slightly inturned.
Patent GB-327589-A (GB)
Title: Manufacture of piston rings
IPC: F16J9/00
Filed: 1929-04-19
Abstract: 327,589. Oubridge, W. A. April 19, 1929. Piston packing.- A split packing-ring having the curvature of an evolute of a cycloid, as described in Specification 135,249, is made of wire and is pressed cold to the required curvature in a die comprising inner and outer members and a ram. The ring blanks are made by bending wire on a mandrel, which may be circular, or approximately of the required curvature. Specification 327,213 is referred to.
Patent GB-1088365-A (GB)
Title: Improvements in or relating to moulding compositions
IPC: C08L75/04
Filed: 1966-03-18
Abstract: A moulding composition comprises after-chlorinated polyvinyl chloride and a thermoplastic polyurethane.  The polyurethane is preferably formed from a linear diisocyanate and a diol containing a long chain comprising a plurality of ester groups.
Patent GB-527885-A (GB)
Title: Improvements in band-pass selector systems
IPC: H03H7/01
Filed: 1939-04-22
Abstract: 527,885. Valve circuits for wireless reception. HAZELTINE CORPORATION. April 22, 1939, No. 12176. Convention date, April 27; 1938. [Class 40 (v)] A band-pass circuit comprises two coupled tuned circuits 12, 15; 16, 18 and a resistance 14 in the output circuit of a succeeding amplifier valve 11 which provides a feed-back to the circuit 12, 15 which is regenerative at frequencies within the pass band and less regenerative at frequencies above and below. Selectivity may be controlled by varying the grid bias of valve 11. The resistance 14 may be connected in series with the inductance 12 as shown or with tne capacity 15, Fig. 3 (not shown), or may be coupled to the circuit 12, 15 magnetically, Fig. 4 (not shown), or through a condenser, Fig. 5 (not shown). Variations in the grid-cathode capacity of valve 11 with changes of grid bias may be compensated for by connecting the resistance 14 or part of it in the input circuit of the valve 11. Numerical examples of suitable values for the circuit elements are given in the Specification. Specification 483.602 and U.S.A. Specification 2,033,330 are referred to.
Patent GB-744402-A (GB)
Title: Appliances for use in the making of dental prostheses
IPC: A61C11/00
Filed: 1952-05-15
Abstract: 744,402. Dental articulators. BOYLE, H. H. May 15, 1953 [May 15, 1952], No. 12312/52. Class 81(2). Apparatus for positioning teeth on a dental prosthesis comprises a housing of U-form having a recess to receive and fit an articulator and a surface with guides at mid height of the articulator to receive and fit a gauge plate, an articulator fitting said housing and having upper and lower jaw mould holders and a gauge plate resting on said surface of the housing and laterally located by the guides thereof. The housing or integrator 21 has a back portion 22 with projecting side walls 23 and a recess 24 for the standard 7 of an articulator. The side walls 23 have upstanding ribs 25 for guiding the gauge plate which is preferably made of stainless steel and which comprises a strip 2 with two rearward extensions 3 and has at the centre rearwardly projecting points 5, 6 spaced by the width of an incisor tooth. A bite block faced with wax is placed in the patient's mouth and the points 5, 6 thrust into the wax so that the strip 2 is horizontal and the extensions 3 slope upwardly to define the position of the patient's occlusal surface. The bite block and gauge plate 1 are then transferred to the articulator and integrator 21 so that the gauge plate 1 rests on the side walls 23 of the integrator 21, the upper and lower jaw mould holders 11, 8, being adjusted to support the jaw moulds. The upper jaw mould holder 11 is hinged to an extensor 9 which may be adjusted vertically relative to the standard 7, a knurled nut 17 being provided for this purpose. The jaw mould is secured by plaster to the holders 8, 11, a horeshoe strip 27 being provided to confine the plaster securing the lower jaw mould. In order to position the teeth, a template defining the required occlusal surface is secured to the upper jaw mould by wax at the level of the gauge plate 1 and the upper teeth are positioned. The lower teeth are then positioned with respect to the teeth of the upper jaw. Specification 442,933 is referred to.
Patent GB-1056142-A (GB)
Title: Hollow structures
IPC: B21F17/00
Filed: 1964-03-24
Abstract: 1,056,142. Moulding hollow articles. JUSTIN ENTERPRISES Inc. March 24, 1964 [April 3, 1963], No. 12374/64. Heading B5A. [Also in Divisions B8 and F2] A hollow structure is made by (a) forming a unit length hollow element about a mandrel, (b) moving the hollow element with respect to the mandrel a distance less than said unit length, (c) forming at least one subsequent unit length hollow element about the mandrel, each element overlapping the immediately preceding element, and (d) interlocking adjacently formed elements in the area of said overlap. Each hollow element may be made by winding a filament in a helical pattern about the mandrel in a manner forming an enlarged collar on at least one end of said hollow element and introducing a settable binder that is then set; or a plastic resin carrying chopped fibres may be sprayed on to the mandrel. The hollow structure may be provided with an inner lining by first wrapping the mandrel with suitable sheet material, for example, polypropylene or stainless steel. The liner may be applied by (a) winding a unit length layer of liner material about a mandrel, (b) joining the longitudinal edges of said layer, (c) moving the resulting tube along the mandrel a distance less than said unit length, (d) winding at least one subsequent unit length layer of liner material about the mandrel, said last named layer overlapping the prior layer, (e) joining the longitudinal edges of said subsequent layer; and (f) joining the two layers together. As the liners are applied and completed the overlapping filament windings referred to above may be applied. Alternatively, the entire liner shell may be completed to the desired length and then be over-wound with a single continuous helical pattern. The mandrel may be horizontal or vertical, may be coated with a release agent, or be collapsible. The mandrel may rotate to wind filamentary material thereon or it may be stationary with a carriage carrying the filamentary material travelling around the mandrel. End closures may be included.
Patent GB-1446131-A (GB)
Title: Devices for training eye muscles
IPC: A63B23/025
Filed: 1974-03-20
Abstract: 1446131 Training eye muscles K SADANAGA 20 March 1974 [20 March 1973] 12384/74 Heading A5R A device for training eye muscles, comprises a housing 21 having a pair of windows 24, 24' in a first wall thereof through which an object is observed, a pair of planoconcave eye lenses 32, 32' mounted in a wall 23 of said housing opposite the first wall, eye lenses 32, 32' being in alignment with windows 24, 24' respectively, a pair of prism devices 35+36 and 35'+36' disposed in said housing between window 24, eye lens 32 and window 24', eye lens 32' respectively, the prism devices being continuously driven so that the light transmission directions therethrough are varied, and a pair of planoconvex object lenses 29, 29' disposed between prism device 35+36 and eye lens 32, prism device 35'+36' and eye lens 32' respectively, said object lenses being driven reciprocatingly along their optical axes to increase or decrease the image sizes. Object lenses 29, 29' are carried on lens frames 28, 28' slidably mounted on pillars 26, 26' secured to wall 23. Eye lenses 32, 32' are carried in lens frames 33, 33' held in ring bodies 34, 34' rotatably carried in slide plates 31, 31' in the housing 21, the ring bodies 34, 34' being rotatable relative to the slide plates for fine adjustment of the eye lenses, and the slide plates being adjustable relative to each other by a cam 12 to vary the distance between the eye lens axes, the slide plates being biased together by a spring (not shown). Slide plates 31 31' carry supporting plates 48, 48' for a shaft 47 carrying cams 46, 46' engaging the lens frames 28 28', so that rotation of the shaft 47 causes reciprocation of lens frames 28, 28' along the pillars 26, 26'. The profile of the cams 46, 46' is given in Figure 3 (not shown). Shaft 47 is driven by an electric motor 50 via a worm 53, a gear train and a gear wheel 49 on shaft 47. The prism devices are secured within boxes 27, 27' attached to the ends of the pillars 26, 26' each prism device comprising a pair of prisms of cylindrical trapezoid configuration (see Figure 4, not shown) mounted back to back in ring frames 37+38, 37'+38'. The ring frames are rotatably mounted within boxes 27, 27' and are rotated by means of toothed collars 52 on the ring frames engaging gears 41+42, 41'+42' meshing with pinions 44, 44' the pinions 44, 44' being rotated by their engagement with racks 45, 45' secured to lens frames 28, 28'. The arrangement is such that prisms 35, 36 and 35' 36' rotate in opposite senses and also 35, 35' and 36, 36' rotate in opposite senses. The lens frames 28, 28' are biased towards the wall 23 by means of springs 30, 30'. In a second embodiment of the prism devices, Figure 6 (not shown) each of the ring frames 37, 38 has a toothed bevelled section (54) on its periphery, the bevelled sections (54) engaging a single bevel gear (61). The devcie is supported on the head of a patient by means of a supporting headband (1), Figure 1 (not shown).
Patent GB-1249231-A (GB)
Title: Improvements in dry cleaning process and apparatus
Inventor: DIXON PETER RAYMOND
IPC: D06F35/00
Filed: 1969-03-10
Abstract: 1,249,231. Dry cleaning process. J. C. PENNY CO. Inc. 10 March, 1969 [17 Feb., 1969], No. 12473/69. Heading D1P. Natural and synthetic materials are dry cleaned by a) contacting the soiled article with a cleanser impregnated pulverised granular carrier e.g. sawdust or corncob dust in a sealed chamber b) agitating the cleanser and article to effect removal of soil c) separating the cleansing agent from the article. The cleansing agent may be removed by circulating warm air (110-120‹F) around the chamber which may agitated during the separation stage. Apparatus includes an hermetically sealable chamber 11, closable by a door (16) Fig. 2, not shown, within which a cylindrical perforated drum 17 is rotatably mounted on a substantially horizontal drive shaft (18), a blower 30 having an inlet in the chamber and a filter 41. A heating coil 45 regulates the temperature within the chamber. In operation an hermetically sealable bag e.g. of polyethylene is filled with the soiled articles, the cleanser, and sufficient air to bolster the articles during agitation. The bag is placed inside the drum which is rotated for the required time. The drum is stopped and the contents of the bag are emptied into it and it is again rotated. The blower and heater act together in removing the cleansing agent, the carrier being collected at the filter and the vaporised solvent being exhausted for disposal or reuse.
Patent GB-1378433-A (GB)
Title: Hand-stamp providing a check symbol impression
IPC: B41K1/12
Filed: 1972-03-17
Abstract: 1378433 Hand stamps ERNST REINER KG FEINMECHANIK UND APPARATEBAU 17 March 1972 [19 March 1971] 12488/72 Heading B6D A hand stamp for cancelling cheques or receipts by impression of one of consecutive numbers and, having a set of tye wheels 6, Fig. 3, setable during upward movement of the type wheel casing 5, Fig. 2, towards a stamp frame 8 by a setting member 11, is provided with means preventing unauthorized repetitive stamping of the same number. The means comprises a member 1 mounted slidably in a web 5<SP>1</SP> of the casing 5 and impression plate 8<SP>1</SP>, whereby for impression of the first correct number the member 1 is displaced into printing position by the underside of the frame 8 and retained in that position by a pawl 2<SP>1</SP> of a lever 2 which engages a lower notch 1<SP>11</SP> on the member 1. Following impression which results in the formation of a control mark by a control type 1<SP>1</SP> on the member 1, the latter is displaced upwardly by the printed surface and the member 1 is retained in the now ineffective printing position by the pawl 2<SP>1</SP> engaging an upper notch 1<SP>11</SP>. The member 1 can only be displaced into a new impression position after the type wheel casing has been allowed to return into abutment with the frame 8 and the setting member 11 has advanced the setting wheels 6 by one integer.
Patent GB-855263-A (GB)
Title: Improvements in or relating to multi-beam aerial systems
Inventor: MORAN MICHAEL JAMES
IPC: H01Q25/00
Filed: 1957-09-09
Abstract: 855,263. Aerials. DECCA RECORD CO. Ltd. Sept. 9, 1957, No. 12596/60. Divided out of 855,262. Drawings to Specification. Class 40(7). The aerial system described is the same as that disclosed with reference to Figs. 4, 5, 6 and 7 of Specification 855,262. The claims are directed to an aerial arrangement formed by two sets of rows of radiating slots, each set consisting of a number of co-planar parallel rows having a common feedguide, wherein the rows of one set are arranged alternately with the rows of the other set and are in the same plane.
Patent GB-437282-A (GB)
Title: Improvements in or relating to cooling towers
IPC: F28C1/16
Filed: 1934-04-26
Abstract: 437,282. Cooling-towers. MOUCHEL & PARTNERS, Ltd., L. G., and HOME, J. H., 36, Victoria Street, Westminster. April 26, 1934, No. 12613. [Class 29] To prevent the issue of steam and subsequent deposition of moisture outside the tower the steam is condensed within the mouth of the tower by a spray of cooling- water, or water and air, supplied under pressure to nozzles b on annular and cross pipes a <1> .. a<4> and d arranged above the gridwork. Specification 418,320 is referred to.
Patent GB-326691-A (GB)
Title: Sewing machine in which an electric motor is arranged on the end of the main shaft
IPC: D05B69/12
Filed: 1929-04-23
Abstract: 326,691. Mundlos, R. April 23, 1929. Driving. - A sewing-machine is driven by an electric motor 4 mounted on one end of the main shaft 1, the motor having a multiple pole magnet frame and a slotted armature with a core mounted directly on the armature boss. This enables a small motor to have a sufficiently high work capacity. The main shaft 1 rests in a bearing shield 2 in the frame 3 on which is also mounted the magnet frame 5 having six poles. A bush 6 carries the boss 7 of the armature 8, an extension 9 of the boss carrying the commutator 10. The screw knob 13 switches in or cuts out the motor. It also presses the disc 12 into engagement with the bush 6 of the armature to the switch shaft 1. The cover plate 15 rotates with the armature so that the shaft 1 can be operated by hand to adjust the needle. The current is fed from a plug 21 by an internal lead 22 or an external lead 20.
Patent GB-595701-A (GB)
Title: Composite material for use in structural work, and its mode of manufacture
IPC: E04C2/296
Filed: 1945-05-18
Abstract: 595,701. Compound sheet materials. JICWOOD, Ltd., BUCHANAN, C. H., and POLOVTSEFF, B. May 18, 1945, No. 12638. [Classes 96 and 140] A light-weight composite material consists of a board made from waste wood and hydrated paper pulp as described in Specification 595,474 to one or both surfaces of which is glued or cemented a layer or layers of sheet material such as wood veneer, plywood, metal, impregnated or non-impregnated paper or cardboard, fabric, synthetic resinous sheeting, or a combination of two or more of these. Liquid, powdered or film glue may be used as adhesive. Shaped slabs may be made by pressing between moulds. Stiffeners of wood or other material may be included in the core or backing. The material is suitable for heat- and soundinsulation.
Patent GB-973013-A (GB)
Title: Multi-phase alternators
Inventor: SINCLAIR WALTER
IPC: H02M7/162
Filed: 1962-04-03
Abstract: 973,013. Rectifying. ROTAX Ltd. March 12, 1963 [April 3, 1962], No. 12682/62. Heading H2F. [Also in Division G3] The output voltage of an alternator supplying a D.C. load over a full-wave rectifier including controlled rectifiers is regulated by varying the instants at which the controlled rectifiers are fired in dependence upon output voltage variations. As shown, a three-phase alternator 14 supplies a D.C. load 34 over a transformer 18 and a full-wave rectifier constituted by controlled rectifiers 23, 24, 25 and diodes 26, 27, 28. A transformer 48 and associated components, including a full-wave rectifier 59, 61, 62, 63, 64, 65 and transistors 58, 75, produce a succession of pulses which are applied to a transistor 78 which is thus rendered conducting, whereby a transistor 87 is also caused to conduct to permit charging of a capacitor 89. When the capacitor 89 has charged to a predetermined level, a uni-junction transistor 91 breaks down and firing pulses are applied to the three gates of the controlled rectifiers 23, 24 and 25. The rate of charging of the capacitor 89, which discharges through the transistor 91 when the latter conducts, and hence the instant during the halfcycle at which each controlled rectifier is fired, is determined by the transistor 87. A proportion of the D.C. output voltage sensed by resistors 35, 36 and 37 is applied to the base of a transistor 39 which has its emitter voltage fixed by Zener diodes 43, 44 and the collector of which is connected to the base of transistor 78. Any increase in output voltage increases the degree of conduction of transistor 39 with consequential reduction in the conductivity of transistors 78, 87; the capacitor 89 then takes longer to charge to the predetermined voltage and so the controlled rectifiers are fired at a later instant in their respective half cycles, whereby the output voltage is consequentially reduced and thus tends to remain constant.
Patent GB-1532859-A (GB)
Title: Charge coupled circuit arrangements and devices
IPC: H01L27/148
Filed: 1976-03-30
Abstract: 1532859 Radiation imaging device MULLARD Ltd 30 March 1976 12717/76 Addition to 1518953 Heading H1K An imaging device comprises a first semiconductor layer which with an associated set of transfer electrodes constitutes a CCD shift register, a second semiconductor layer in which free charge carriers are formed in response to radiation in a certain wavelength range, and circuit means for producing punch through of depletion regions associated with charge storage sites in the first layer to the second layer during a light integrating phase of operation to transfer the radiation generated carriers of a particular polarity to the storage sites, which are associated with the register. Though the storage sites may underlie electrodes lateral of the CCD, in the described embodiments they underlie every fourth transfer electrode of the 4-phase CCD. In one group of embodiments in which the first layer is of the same conductivity type throughout each fourth electrode is so biased that the underlying depletion region extends into the second layer to transfer minority carriers to a storage site beneath it for transfer along the surface during readout. In another group in which it consists of superposed sub-layers of opposite conductivity types, both depletable throughout their thickness without breakdown, the bias on each fourth electrode causes extension of the underlying section of the depletion region of the reverse biased junction between the sub-layers to extend to the second layer to transfer majority carriers to sites in the upper sub-layer for bulk transfer during read-cut. In either case the second layer and the first layer or lower sub-layer may be of the opposite, or if of different band gap materials of the same conductivity type. In one embodiment the surface transfer CCD form of which is shown in Fig. 1, for operation at 60 K. both layers 1, 3 are of silicon, the substrate layer 1 being doped with indium or thallium to provide donor centres which are ionized in response to infra red radiation in the 3-5 Á range. Sensitivity in the range 8-14 Á is achieved by doping with gallium and operating at 30 K. In a second embodiment, for operation at 150 K., the second layer is of N-type lead sulphide or P-type lead telluride and has at its lower, illuminated face, a metal electrode aperture beneath the storage sites. Radiation in the 3-5 Á range raises carriers from the valence to the conduction band. In all cases to avoid image smearing the voltages applied to the transfer electrodes during readout are such that punch through no longer occurs. The use of colour filters to modify the spectral response and of transparent transfer electrodes to permit top illumination are envisaged.