baber/WOPTO huggingface dataset:
Patent GB-761830-A (GB)
Title: Improvements in tension responsive control apparatus for weft-straighteners
IPC: D06C3/00
Filed: 1954-10-25
Abstract: 761,830. Automatic tension control. ROBERTSON, J. D. Oct. 25, 1954 [Dec. 2, 1953], No. 30678/54. Class 38 (4). [Also in Group XVI] A web tension-responsive control for weft straighteners comprises a web guide, the longitudinal tension of the web acting on the guide to maintain it in a first position, a biasing means, acting in opposition to this tension, provided at each end of the guide to respond to differences in tension of the selvedges, and a mechanism which associated with each end of the guide to actuate further mechanism causes equalization of the tension difference. A tension detecting roller 16 is arranged, such that a decrease in tension of either selvedge of a web passing around the roller causes actuation of a normally closed electric switch 42 at the end of the roll adjacent the selvedge which decreases in tension. The roller is rotatable on an axle 30 prevented from rotating by a pin 38 screwed into supporting member 34 provided with an elongated hole 32. The axle 30 is urged at each of its ends by a spring 52, the tension of which is adjustable by a screw 54 connected to the screw by a pin 58 and a surrounding ball-bearing 56. Should the tension of the web passing around the roller 16 decrease at one selvedge, the appropriate end of the axle 30 slides in the hole 32 to operate a pin 46 engaging a member 44 attached to the switch 42. The switches 42 are in the circuit of relays, not shown, either of which relays, when closed, energizes a reversible electric motor, not shown, which controls the inclination of one or more weft straightening rollers.
Patent GB-484915-A (GB)
Title: Means for automatically controlling electric welding operations
IPC: B23K11/24
Filed: 1936-11-11
Abstract: 484,915. Electromagnetic switches momentary contact switches. LUCAS, Ltd., J., MILLER, J. L., and MAY, E. Nov. 11, 1936, No. 30734. [Class 38 (v)] A switch for the timed operation of welding circuits comprises a pendulum a pivoted at its upper end and carrying an adjustable weight b. The pendulum is held in the position shown by an electromagnet c and holds open a switch k, in the circuit of an electromagnet in controlling contacts n, o in the welding circuit. The electromagnet c is connected to alternating current mains p through a rectifier q and two pairs of parallel contacts d, e and f, g which are adapted to be closed alternately by a spring toggle mechanism i, j, h. To effect a weld, the operating lever i is moved across to open contacts d, e and almost immediately close contacts f, g. The momentary de-energization of the electromagnet c releases the pendulum which allows switch k, l to close and cause the welding circuit to be closed at n, o and remain closed until the pendulum returns and opens switch k, l. The pendulum is then held by the electromagnet c which is now energized through contacts f, g. Thus operation of lever i causes the welding circuit to be closed for a period solely dependent on the period of the pendulum a.
Patent GB-910853-A (GB)
Title: Improvements in or relating to gas chromatography
Inventor: OBST DANKWART
IPC: G01N30/86
Filed: 1960-09-06
Abstract: The proportion in a gaseous sample of a component separated by gas chromatography may be determined before completion of the separation by measuring the total sample between the point of introduction into the apparatus and the point of entry into the column.  The total sample may be measured by a device similar to that used for measuring the separated components, e.g. it may be the compensation cell of the thermal conductivity device used for said components. The method may be put into practice by applying a potential across a potentiometer corresponding to said total sample measurement, the position of the tapping of the potentiometer being controlled by the gas measuring device, and applying the potential between one end of the potentiometer and the tapping to a d.c. motor which functions as an integrator and thereby provides a direct percentage analysis.
Patent GB-354616-A (GB)
Title: Improvements in and relating to alarm pistols
IPC: F41C3/04
Filed: 1930-10-14
Abstract: 354,616. Toy pistols. KANZLER, M. and ADRIAN, M., (trading as ADRIAN & RODE), 226, Friedrichstrasse, Velbert, Rhineland, Germany. Oct. 14, 1930, No. 30758. Convention date, Sept. 19. [Class 132 (iii).] An alarm pistol for firing amorce charges.comprises an annular anvil a surrounding the end of the barrel b over which is placed the slit annular ammunition disc carrying the amorces which are simultaneously fired by the annular hammer n on the trigger r loaded by the spring v and having a curved arm s which during firing enters an opening in the handle casing to prevent nipping of the fingers. The anvil a has a rectangular projection d with ears h engaging slots in the pistol casing e.
Patent GB-1136136-A (GB)
Title: Multi-channel single-sideband carrier frequency system
IPC: H04J1/04
Filed: 1966-07-08
Abstract: 1,136,136. Frequency multiplex carrier systems. INTERNATIONAL STANDARD ELECTRIC CORP. 8 July, 1966 [15 July, 1965], No. 30762/66. Heading H4R. Multi-channel carrier frequency terminal is provided using printed, thin film, or thick film circuits which include filters composed of RC networks with piezo-electric or electrostrictive resonators to sharpen the attenuation peaks. The frequency transposition at the terminal is provided using identical filters for each channel. As described speech channels are modulated by a 48 kc. carrier and the upper sideband selected by a 48-52 kc./s. band pass filter. The resulting signals are each modulated by a respective one of a group of carrier frequencies of 112-116-120- - - -152-156 kc./s. to provide a set of channels in the range 60 to 108 kc./s. which are selected by a single common band pass filter of pass band 60-108 kc./s.
Patent GB-1156778-A (GB)
Title: Improvements in Trays or the like for Packing and Carrying Fruit or Like Articles of Rounded Shape.
Inventor: MARTELLI GUIDO
IPC: B65D1/36
Filed: 1967-07-04
Abstract: 1,156,778. Moulded trays. COMPAGNIA ITALIANA NEST-PACK S.p.A. 4 July, 1967, No. 30772/67. Heading B8P. A moulded plastics fruit &c. tray has an inner top rim 1 of each cell of an approximately triangular shape in plan, and a cell base of other than triangular form, e.g. circular or oval, and in cross-sectional planes parallel to the cell base. The lateral cell wall changes gradually from the triangular in the upper portion of the cell, merging downwardly into a cross-section corresponding to that of the cell base. The cell base may be other than flat and have a ventilation hole 20. The " humps " 2, 5 between the cells may be reinforced by concavities or convexities or by making their wall thickness thicker than the cell wall thickness.
Patent GB-1192519-A (GB)
Title: Apparatus for Gravity Blending of Solids
IPC: B01F5/24
Filed: 1968-06-27
Abstract: 1,192,519. Blending particulate solids. DART INDUSTRIES Inc. 27 June, 1968 [27 June, 1967], No. 30781/68. Heading B1C. A gravity solids blender comprises a container with vertical discharge tubes each having one intake aperture 15 at a level different from that of any other, an apical discharge port 18 in an inverted conical lower portion 12, and a vertically movable baffle (as shown, a cone 20) wholly or partly within the portion 12. The baffle may be manually or automatically adjustable to control the annular passage 21 and may provide an annular passage 20c and a permanently open vertical passage 22. In a modification, (see Fig. 4 not shown) the apical discharge aperture may be controlled by a butterfly valve (23), the conical baffle (25) being internal. In a further modification (see Figs. 5 and 6, not shown) there may be equispaced external discharge tubes (27) about the conical portion 12, each having at least one intake aperture (28). Material is discharged into a blending vessel 16 and may be recycled. Reference has been directed by the Comptroller to Specification 1,099,033.
Patent GB-654562-A (GB)
Title: Improvements in or relating to pest control compositions
Filed: 1948-11-29
Abstract: A pest control composition comprises a solution of benzene hexachloride containing the gamma isomer in a solvent selected from diethyl carbonate or a normally liquid homologue thereof, or cyclohexanone or a normally liquid homologue thereof, in association with an amount of dispersing agent soluble in said solvent(s) sufficient to give either an emulsion or a clear solution on mixing with water, said dispersing agent being at least in part of non-toxic character.  Specified dispersing agents are the product obtained by condensing an octylated mixture of cresols with nine molecular proportions of ethylene oxide (see Specification 586,540, [Group VIII]); or polyglyceryl ricinoleate prepared by condensing glycerol and castor oil (see German Specification 579,911), either alone or admixed with Turkey Red oil containing ammonia.  Auxiliary solvents such as ethanol, tar acids, glycol ethers or cyclohexanol may be added if necessary. Specifications 573,689, 573,693, [Group IV], 576,493, 586,439 and 586,442, [both in Group IV], also are referred to.  The Provisional Specification describes also the employment of xylene as the solvent.
Patent GB-477486-A (GB)
Title: Improvements in and relating to means for the supporting of pottery and other goods during firing processes
IPC: F27D5/00
Filed: 1936-11-13
Abstract: 477,486. Pottery manufacture. MADDOCK, W. E. Nov. 13, 1936, No. 30980. [Class 87 (i)] A device for supporting pottery and other goods during firing consists of a base member 1 provided with three or more upstanding pillars 3 on which fit tubular or other distance pieces 8 of various heights to support one or more trays 9 in suitably spaced relation. The pillars pass through holes 11 in the trays and are tapered at their lower ends to fit in holes 2 in the base. Preferably, the base and trays have peripheral flanges 6, 10 and are formed on their upper surfaces with bevelled ribs or conical or other projections. For high temperatures the device is made of fireclay or other earthenware material, but for lower temperatures it may be of metal or other material.
Patent GB-324399-A (GB)
Title: Improvements in or relating to television and like systems and apparatus
IPC: H04N3/04
Filed: 1928-10-26
Abstract: 324,399. Baird, .T. L., and Television, Ltd. Oct. 26, 1928. Television. - A television receiver, for selective or simultaneous reception from a plurality of transmitting stations, comprises exploring mechanism 26 having a plurality of sets 27, 28 of spirally arranged apertures or lenses. The sets may all be carried by the sameexploring-disc, or the different. sets may becarried on different exploring-discs all driven by a common electric motor (Fig. 2, not shown). As shown, the different sets are different in arrangement and shape to facilitate reception from transmitting-stations employing exploring- devices of different design.
Patent GB-1066515-A (GB)
Title: Improvements in or relating to flexible tube filters
Inventor: SAUERMANN WERNER
IPC: B01D46/04
Filed: 1965-07-22
Abstract: 1,066,515. Gas filters. STANDARD FILTERBAU. G.m.b.H. July 22, 1965, No. 31255/65. Heading B1T. Flexible filter tubes 2 are fixed at their lower ends and connected at their upper ends to individual suspension bars 8, which are adjustably mounted in an oscillating plate 5, by which the tubes are shaken for cleaning. As shown, the plate 5 forms the upper cover of the housing 1 and is sealed thereto by a flexible membrane 7, while its weight is supported by springs 4. In an alternative embodiment (Fig. 2, not shown), the oscillating plate (15) is mounted above a fixed housing cover, suspension bars 8 extending through flexible seals in the fixed cover, while the plate (15) is formed as a grating. In both cases, the oscillating plate is vibrated in a vertical plane by an out of balance motor 6, and the suspension bars 8 are vertically adjustable by handles 11 and clamping screws 9.
Patent GB-1057308-A (GB)
Title: Improvements in or relating to automatic gain control circuits
IPC: H03G3/30
Filed: 1964-08-04
Abstract: 1,057,308. Automatic gain control circuits. ALBISWERK ZURICH A.G. Aug. 4, 1964 [Aug. 23, 1963], No. 31263/64. Heading H3T. In an automatic gain control circuit for an amplifier the control voltage derived from a detector D is fed to the base of a first transistor T1, having its emitter connected to the emitter of a complementary transistor T2 the base of which is connected to a fixed or variable reference potential and the collector of which supplies a control signal for one of the amplifier stages. As shown, the control is effected on stage V2 by varying the resistance of clamping diodes G1, G<SP>1</SP>2 and control is effected of stage V3 in a similar way from the collector current of T1. For testing purposes the link C1 may be broken without affecting the control signal applied to V3. A number of stages may be controlled from T2 via individual amplifier stages (Fig. 2, not shown) having variable emitter resistors (T21-T23) or, for modulation compression circuits, a non-linear emitter impedance network (G22, G23). The load of T2 may include a diode (G21) to compensate for the input impedance of the amplifiers and in Fig. 3 (not shown) transistor pairs (T31, T32) are used as the amplifiers, one amplifier including an LC filter to slow down the rate of change of control voltage as required when pulse radar signals are being amplified. In Fig. 4 (not shown) a fast-acting circuit is provided and a meter may be switched into the collector circuit of T1.
Patent GB-1077215-A (GB)
Title: Phosphorus-containing copolymers and process for their manufacture
IPC: C08F30/02
Filed: 1964-08-04
Abstract: A copolymer of a vinyl phosphonic acid ester having the formula <FORM:1077215/C3/1> in which R1 and R11 each represents an identical or different alkyl radical which contains 1 to 8 carbon atoms and may be substituted by one or more OH groups, a cyclo-hexyl radical, a phenyl radical or a phenyl radical substituted by alkyl radicals containing 1 to 4 carbon atoms or by chlorine or bromine and vinyl acetate containing 0.7 to 2 vinyl acetate units per vinyl phosphonic acid ester unit is obtained by polymerization in the presence of a free radical catalyst wherein the molar ratio of vinyl phosphonic acid ester to vinyl acetate in the monomer mixture lies within the range of 1:3 to 1:20 and the said molar ratio is kept constant throughout the entire polymerization by the dropwise addition of the vinyl phosphonic acid ester and/or the gradual distillation of vinyl acetate.  Conventional free radical catalysts are used.  The polymerization may be carried out in bulk or in aqueous or organic medium.
Patent GB-719688-A (GB)
Title: Shoulder rest for violin
IPC: G10D3/18
Filed: 1952-12-11
Abstract: 719,688. Violin shoulder rests. GOLDBERGER, E. M. Dec. 11, 1952 [Oct. 22, 1952], No. 31372/52. Class 88 (2). The violin shoulder rest described in Specification 639,350 is modified by combining the clamping fingers and the supporting fingers in one element at each end of the rest. An element 31 or 32, Figs. 4, 5, 6, is screwed to the flexible plate 33 and is formed with two arms each carrying a rubber sleeve 4 to support the back of the instrument and a sleeve 36 to clamp the side wall. The sleeve 36 is stepped, as at 35, to engage the rim 20. When pressure is exerted on the shoulder rest, the arms pivot about the rim 20 and the wider portions of the sleeves 36 are withdrawn from the side wall which is then free to vibrate without damping. The elements 31, 32 may each be formed from a piece of wire 14 bent as shown in Fig. 1. This element is secured to the plate 33 by a rivet 7 engaging an eyelet formed by the wire 14 and a steel wire 23 which is passed through holes on the plate and twisted over the legs 8, 9 of the wire 14. A pad of velvet covered wood is fixed to the plate 33. The fingers of each element engage the violin body on opposite sides of a plane A-B passing through the widest part of the body. Specification 671,202 also is referred to.
Patent GB-743070-A (GB)
Title: Improvements relating to dry gas meters
Inventor: ALEXANDER ARTHUR
IPC: G01F3/22
Filed: 1952-12-11
Abstract: 743,070. Gas meters. PARKINSON & COWAN, Ltd. Dec. 9, 1953 [Dec. 11, 1952]. No. 31404/52. Class 54. In a gas meter having two or more pairs of measuring compartments, the compartments of each pair being separated by movable diaphragms 18, 20, Fig. 3, a division plate 14 separates a top chamber 16 from the lower portion of the meter and each of the pairs of measuring compartments except one is bounded by an internal casing 38 open at the top and secured to the plate 14 in a gas-tight manner. In the preferred embodiment, two pairs of measuring chambers are employed and one pair is enclosed by the casing 38, the upper periphery of which is provided with flanges 40 connected by bolts 42, Fig. 2, to the plate 14. The diaphragms, which are attached between metal discs 28, 30 connected to flag rods 32, 34, are mounted on pan members 24 provided with gasways 22 secured by bolts to the plate 14. The latter and top and bottom portions 10, 12 of the meter casing are formed by pressings. The flag rods 32, 34 pass through stuffing-boxes 36 and are connected by links 66, 68, 74, 76 and an adjustable pin 70 on a tangent arm to the valve covers 60 which are thus oscillated about pivots 78 to control valves of the threeported transfer type. Two casings such as that shown at 38 may be employed, the space external to the casings being used for outlet gas. Specifications 743,071 and 743,072 are referred to.
Patent GB-789123-A (GB)
Title: Improvements in and relating to instruments for indicating or measuring moisture content of materials
Inventor: TOPLIS LESLIE GEORGE
IPC: G01N27/22
Filed: 1954-11-01
Abstract: 789,123. Electric tests. LYONS & CO., Ltd., J. Nov. 1, 1955 [Nov. 1, 1954], No. 31498/54. Addition to 687,472. Class 37. The moisture content responsive apparatus of the parent Specification is provided with means for moving the test material in bulk coherent form between the electrodes of the test cell. These electrodes are in the form of spand plates and each may be mounted vertically by an insulating frame so as to be above an insulating floor having a track on which runs a truck. This truck may have upstanding ends of insulating material for supporting the test material at such a height that on movement of the truck the material passes between the plate electrodes.
Patent GB-362598-A (GB)
Title: Improvements in pivots for window sashes or the like
IPC: E05F11/00
Filed: 1930-10-21
Abstract: 362,598. Friction pivots. PARKER, WINDER, & ACHURCH, Ltd. and BATES, W. E., Broad Street, Birmingham. Oct. 21, 1930, No. 31509. [Class 65 (ii).] A pivot for swinging windows, of the type in which a spring on the pivot pin presses the two attachment plates into frictional contact, is designed to compensate for wear and to maintain the friction constant when the.distance between window and frame varies slightly due to. inaccurate fitting or shrinkage of the wood. The pivot comprises two attachment plates 1, 2 and a pivot pin 7, which may be fixed to the plate 1. The plate 1 is provided with a collar 13, round the hole for the pin, having a conical, spherical, or other bearing surface which engages frictionally with a corresponding seating in a bearing plate 15. The bearing plate is non-circular, and is mounted in a corresponding hole in the attachment plate 2, so that the latter cannot rotate independently but can slide axially of the pin without affecting the engagement of the friction surfaces of the parts 13, 15 ; the spring 9 acts on the bearing plate, which is thickened to project inwardly from the plate 2. The collar 13 may be formed by plunging the hole for'the pin. The attachment plates may be provided with portions at right-angles for fixing to the face of the window or frame.
Patent GB-669560-A (GB)
Title: Improvements in or relating to mobile supports for damaged vehicle wheels
IPC: B66F7/24
Filed: 1948-12-07
Abstract: 669,560. Hand trucks. CUMET, H. Dec. 7, 1948 [Dec. 8, 1947], No. 31659/48. Addition to 669,555. Class 108(i) A mobile support as in the parent Specification is modified in that the ramp 21 is provided with legs 26 which engage the ground and support the wheels 6 off the ground whilst the automobile tyre is being run on. The surface 27 is also provided with a stop 30.
Patent GB-623213-A (GB)
Title: Improvements in or relating to electron discharge tube neutralising circuit arrangements
IPC: H03F1/16
Filed: 1946-10-25
Abstract: 623,213. Valve amplifying circuits. SADIRCARPENTIER. Oct. 25, 1946, No. 31793. Convention date, Jan. 26, 1943. [Class 40 (vi)] A circuit for neutralizing the grid-anode capacity of a thermionic valve by means of a balanced capacity bridge has a resonant input circuit associated with the bridge constituted by an inductor tuned with two series capacitors, the point between which is at a fixed potential, the input circuit being coupled to the preceding stage at the end opposite to that which is coupled to the control grid of the neutralized stage. The Figure shows a neutralized triode valve 8, the grid-anode capacity 1 and capacitors 4, 5 and 6 being arranged in a balanced bridge circuit. The inductor 2 resonates with capacitors 4, 5, either the capacitors being made variable and tuning conjointly or the inductor being of the movable core variable inductance type. Bias for control grid 7 is supplied through the decoupled choke 17 and the input to the resonant circuit is derived from anode 13 to which H.T. is fed through choke 14. The ratio of the reactance of chokes 14, 17 is preferably made equal to the ratio of capacitances 4, 5. Within the operating range the impedances of capacitors 9, 16 are preferably negligible compared with those of chokes 14, 17 and with the internal resistance of the valve having anode 13. The resonant frequencies of the chokes 14, 17 are outside the range of frequencies which the stage is required to handle. Specification 292,716, [Class 40 (v)], is referred to.
Patent GB-724256-A (GB)
Title: Improvements in the production of esters of pyridine carboxylic acids
Filed: 1952-12-16
Abstract: Esters of pyridine carboxylic acids are obtained by heating the acids with excess of a monohydric alcohol or with a polyhydric alcohol, without catalysts and without removal of the water formed, in pressure-vessels at about 120 DEG -200 DEG  C.  The excess of alcohol is distilled and the ester purified.  In examples, the ethyl, n-butyl, cyclohexyl, and n-propyl esters of nicotinic and isonicotinic acids are prepared by this method.  Other esters referred to include esters of the above acids, and also of chlorinated or brominated pyridine mono- or dicarboxylic acids, with methyl, hexyl, isopropyl and benzyl alcohols, glycols, glycol ethyl ether, glycerol, chloroalcohols and triethanolamine. Polyhydric alcohols may be esterified with one or more molecules of the same or different acids.
Patent GB-157636-A (GB)
Title: Improvements in or relating to key rings and the like
IPC: A44B15/00
Filed: 1919-12-19
Abstract: 157,636. Terry, A. E., and Clarke, E. Dec. 19, 1919. Key-rings. -A key-ring a is formed by bending round a strip of spring metal, the ends of which are shaped to form a tongue-and-slot connection, by turning-in and slotting one end a<2>, and forming a reduced shouldered tongue a on the other. When withdrawn from engagement, the tongue springs outwardly, Fig. 3, to receive the keys.