baber/WOPTO huggingface dataset:
Patent GB-1205636-A (GB)
Title: Doppler apparatus
Inventor: BLOICE JOHN ANTHONY
IPC: G08B13/24
Filed: 1967-07-03
Abstract: 1,205,636. Burglar alarms. MEMCO Ltd. 21 June, 1968 [3 July, 1967], No. 30514/67. Heading G4N. [Also in Divisions H1, H3 and H4]  A centimetric Doppler radar has separated radiating 8, Figs. 1 and 5, and receiving 9 apertures, a diode 18 on which the reflected radiation is incident, a coaxial cable 22 for coupling sufficient of the transmitter output to maintain diode 18 in conduction, whereby it acts as a combined mixer and detector, a bandpass amplifier passing only a selected range of Doppler beat frequencies, and a circuit connected to that amplifier and providing signals respectively signifying the presence and absence of Doppler beat frequencies within the selected range of frequencies. The aerials may be horns and the radiative horn may be shaped to give a radiation curtain; the selected beat frequency range may be 1 to 50 c/s.; the radiation frequency may be 10À5 Gc/s.; and the transmitter may be a Gunn diode or a reflex klystron. The invention may be used for detecting intruders and the low value of the top end of the band pass eliminates response to fast-moving objects, e.g. insects; and may be used for measuring the speed of vehicles. Gunn diode transmitter. Fig. 4.-Guam diode 40 is mounted in a resonant cavity 41 and is sandwiched between positive terminal 33 and a bar 44 providing the negative terminal. One end of bar 44 is bolted to a flexible diaphragm 45 clamped between an end plate 46 and the housing 42: the diaphragm reduces stress on diode 40 due to thermal expansion and contraction. Cavity 41 is coupled by a loop 50 to a quarter-wave stub 26 which transmits into the radiating horn. Circuit arrangements, Fig. 5.-A low-pass filter 60 has a cut-off at 50 c/s., an amplifier 61 has a degenerative feedback loop 62 feeding back higher frequencies which are thereby suppressed at the output terminal and a highpass filter 63 cuts out frequencies less than 1 c/s. An integrator 64 triggers an alarm generator 65 if the output of filter 63 persists for a period, e.g. three seconds. The alarm is arranged to operate also in the event of a power supply failure.
Patent GB-744717-A (GB)
Title: Improvements in and relating to the joining of units of concrete or the like
IPC: E04G21/12
Filed: 1953-11-05
Abstract: 744,717. Wire strainers. HEIDENSTAM, E. J. VON. Nov. 5, 1953 [Nov. 5, 1952], No. 30592/53. Class 45. [Also in Groups V and X] In making a prestressed concrete joint between two concrete members (see Group X) in which wires 2 protruding from the units are in the form of overlapping loops, a tool for stressing the reinforcements 2 comprises a pair of tongs having shanks 47, 48, which terminate in gripping means 54 inserted in holes in a pair of members 18, 19, around which the wires 2 pass On pressing handles 55, 56 together, the shanks 47, 48, which are connected by pivoted links 52 to a sleeve 50, are moved apart. Thereupon the rod 53 is pressed down within sleeve 50 causing wedge 20 to hold the members 18, 19 apart. The tool may be hydraulically operated and may be combined with means for riveting the members 18, 19 together when the reinforcements 2 have been stressed sufficiently. If the reinforcements 2 are straight lengths of wire instead of loops, each may be held between jaws provided at the ends of the shanks of the tool.
Patent GB-299775-A (GB)
Title: Improvements in propelling mechanism for cycles and the like velocipedes
IPC: B62M1/16
Filed: 1928-10-23
Abstract: 299,775. Bastl, G. Oct. 23, 1928. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 1, 1928]. Combined hand driving and steering mechanism; hand driving-mechanism.-Bicycles &c. are provided with an auxiliary hand-operated front wheel drive comprising a bar 4 mounted on the stem 1 of the steering fork and provided with a forked front end to receive a chain wheel 5, which is in driving connection with the front wheel by a chain 13 and is rotated by means of a pair of cranks 9 and connecting-rods 8 from a transverse arm 10, which is adapted to be reciprocated backwards and forwards by means of a guide collar 7 slidably mounted on the rear stem part 6 of the forked bar 4, the arm 10 also serving as the steering or handle bar. The stem 6 is bent downwards to carry a fixed steering bar 11 for use when the pedal drive alone is being employed.
Patent GB-1123917-A (GB)
Title: Improvements in or relating to a.c. peak voltmeters
Inventor: PARKYN JOHN MICHAEL
IPC: G01R19/04
Filed: 1966-07-07
Abstract: 1,123,917. Peak voltage measurement. MARCONI INSTRUMENTS Ltd. May 10, 1967 [July 7, 1966], No.30638/66. Heading G1U. An A. C. peak voltmeter is of the type where the input is applied to a peak to peak rectifier circuit, the voltage across which is set up across a condenser 4 and applied to an emitter follower 5 which has a meter 6 in its emitter circuit. When measuring peaks in a low frequency signal, a large capacitor 4 is required, and the voltage across it takes a long time to decay if the input is suddenly removed or falls rapidly. The invention provides an additional discharge path for the condenser 4 in these circumstances, so that this time is substantially reduced. When the input starts to fall, so does the potential at the emitter of transistor 5, and this is transferred via condenser 11 to switch on a normally cut off transistor 12. The potential change at the collector of this switches on a normally cut off transistor 13, which provides a low impedance discharge path for the condenser 4, so that a cummulative action rapidly builds up until the charge on 4 corresponds to a new lower input.
Patent GB-318418-A (GB)
Title: Simple frame for drying and stretching socks
IPC: D06F59/06
Filed: 1928-10-23
Abstract: 318,418. Chovil, W. A. Oct. 2.3, 1928. Drawings to Specification. Drying clothes.-An endless wire frame of the kind described in Specification 267,329, and without hooks, loops, or other projections, is placed in socks and stockings while suspended during drying. Reference has been directed by the Comptroller to Specifications 4781/09, [Class 42, Fabrics, Dressing &c.], and 275,106,
Patent GB-914511-A (GB)
Title: Improvements relating to the purification of water
Inventor: TYE FRANK LAURENCE
IPC: C02F1/42
Filed: 1960-09-06
Abstract: Dissolved organic material is removed from water by contact with an anion-exchange resin containing predominantly strongly basic groups, preferably in the chloride form, and activated carbon.  Subsequently the water may be further treated by a mixed anionic and cationic exchange bed or by electrodialysis.  The carbon may be periodically regenerated with caustic soda at 80 DEG C. Specifications 713,911, 741,232, 849,122, and 860,695 are referred to.
Patent GB-230417-A (GB)
Title: Improvements in insulator structures for electrostatic condensers and the like
IPC: H01G5/06
Filed: 1924-12-22
Abstract: 230,417. Rodman, I. P. Match 8, 1924, [Convention date]. Condensers. - An insulator structure comprises a rod-like member and supporting elements in point or edge contact exteriorly with its two ends, whereby the contact areas between the member and the supporting-elements are very small. The invention is shown as applied to a variable condenser described in Specification 220,312, the ends of the dielectric rods 6, carrying the fixed plates 3 of the condenser, being countersunk to engage the pointed ends of supporting-screws 7, 8. Alternatively, the ends of the rods may be counterbored or the elements 7, 8 may engage the flat ends of the rods.
Patent GB-742480-A (GB)
Title: Improvements in and relating to the treatment of decortication wastes
Inventor: BAUM ERNEST ARMAND
IPC: C02F3/02
Filed: 1952-12-04
Abstract: Sisal cuticle, containing wax, is recovered from a mixture of the cuticle and pulp resulting from the decortication of sisal by subjecting the mixture to aerobic fermentation under a spray of water containing dissolved oxygen, in a vat having a spray and a perforated base through which liquid is removed, the cuticle being separated from the retted mixture by washing with water.  Water and plant juices are preferably first removed from the mixture. The spraying water is preferably re-circulated or sprayed through fresh material, oxygen being desirably added thereto.  The sticky layer which forms at a small depth below the sprayed surface is preferably removed or water is injected at different, e.g. at successively lower levels or is supplied upwardly or downwardly. The vat may be emptied after 5 to 10 days before fermentation is completed and the partly retted mixture allowed to ferment further without further spraying. Oxygen-carrying chemicals, such as nitrates, may be added to the spraying water.  The cuticle is finally recovered from the retted mixture by floating it in a washing cage partly immersed in water and agitating the cage or revolving the cage under a water spray.  The cage may be mounted on a central axis and may be formed by a frame of square section to which is fixed a metallic fabric.  The pulp is washed out, leaving the cuticle in the cage.  The dried cuticle may then be extracted with solvents.
Patent GB-1327843-A (GB)
Title: Resistor units
IPC: H01C1/082
Filed: 1971-07-02
Abstract: 1327843 Resistors SIEMENS AG 2 July 1971 [24 July 1970] 31000/71 Heading H1S A resistor unit for use in measuring e.h.t. voltages comprises a plurality of rod-shaped resistors 18 connected in series and arranged in subgroups which are each mounted on an insulating carrier plate 17, the plates being arranged in a column within a housing 1 filled with insulating fluid. As shown annular printed circuit boards 17 provided with holes 30 and conducting portions 25 carry series connected resistors 18 alternately on opposite sides of the boards 17. Metallic end caps 19 are fitted over the outer ends 20 of the resistors. The boards 17 are supported by cylindrical insulators 16 which are carried on an insulating sleeve 14. The metal housing 1 which is filled with sulphur hexafluoride comprises a gas-tight base 2 and a flange 3 to which a cover 5 is sealed. A ring 6 for entry of a high voltage cable is carried by cover 5 and supports a flange ring 7 which clamps a lead through connector 8. An input terminal 10 for connection to an inserted cable is held in a closed end 9 of the connector and is connected to a metal body 12 which is in turn connected to the beginning of the resistor series. A plate 13 carried by sleeve 14 and insulators 16 has a metallic layer 33 which is connected to an intermediate point of the resistor series and acts as a screen.
Patent GB-1041573-A (GB)
Title: Heels having detachable tips
IPC: A43B21/38
Filed: 1963-08-07
Abstract: 1,041,573. Boots &c. H. BIEFNOT. Aug. 7, 1963 [April 9, 1963], No. 31072/63. Heading A3B. A detachable top-piece 10 is attached to a heel 1 by a threaded rod 4 engaging a tapped hole in the shank 11 of the toppiece. The rod 4 is turned by a knurled disc 7 attached to its upper end and the top-piece is prevented from rotating by a rib (not shown) on the heel engaging a groove on the shank 11 or by providing the shank and the hole into which it fits with a polygonal cross-section. The heel 1 is reinforced by a tube 3 which may be omitted if the heel is made of metal.
Patent GB-1447641-A (GB)
Title: Ingegrated circuits
IPC: H01L23/433
Filed: 1973-06-29
Abstract: 1447641 Semiconductor devices PLESSEY CO Ltd 11 June 1974 [29 June 1973] 31098/73 Heading H1K An integrated circuit package comprises a plastics moulding 1 which partially encapsulates a lead-frame assembly 2 and has a hole 3 therethrough, a heat sink attachable to the moulding 1 for closing one end of the hole 3 and having an integrated circuit chip 7 attached thereto, and a cover 11 for closing the other end of the hole 3. The heat sink may be a stud having a threaded shank and a hexagonal head which fits in a hexagonal counterbore in the moulding 1 and the chip 7 is attached to the heat sink by eutectic bonding or using a high melting point solder.
Patent GB-937099-A (GB)
Title: Ring seal unit
IPC: F16J15/32
Filed: 1962-08-15
Abstract: 937,099. Stuffing-box substitutes. GENERAL MOTORS CORPORATION. Aug. 15, 1962 [Aug. 23, 1961], No. 31294/62. Class 122 (5). A seal for a rotary shaft 16 comprises a metal casing 10 housing an L-section elastomeric sealing ring 24 bonded to a metal plate 34 and having a sealing lip 28 shaped at 42 at an acute angle 44 relative to the seal axis. The ring 24 and plate 34 are held in the casing 10 by a retaining ring 26 and the sealing lip 28 is urged into contact with the shaft by a garter spring 30. A dust-excluding seal 50 comprising a radially slotted lip 54 is bonded to the outer end wall 22 of the casing 10.
Patent GB-1011849-A (GB)
Title: The manufacture of 3-amino-isoxazole compounds
IPC: B04C5/081
Filed: 1964-08-04
Abstract: 3-Amino isoxazole compounds of the general formula <FORM:1011849/C2/1> in which R1 and R2 are alkyl, aralkyl or aryl groups, these substituents being optional, are prepared by reacting an a ,b -dihalo-carboxylic acid nitrile of the formula <FORM:1011849/C2/2> or an a ,b -unsaturated-a -halo-carboxylic acid of formula <FORM:1011849/C2/3> in alkaline medium with hydroxylamine or an N-acyl-hydroxylamine. The term "acyl" is defined as including both "oyl" and "amoyl" groups.  The 3-amino isoxazole compounds may be further reacted, without isolation, with a benzenesulphonyl halide to produce the corresponding 3 - sulphanilamido - isoxazole. Specifications 1,011,850 and 981,469 are referred to.
Patent GB-465802-A (GB)
Title: Improvements relating to heating plant and to the use of heavy hydrocarbon or fluorcarbon vapours, such as butane
IPC: C09K5/04
Filed: 1935-11-12
Abstract: 465,802. Refrigerating. ZEHNLE, P., and KOECHLIN, A. Nov. 12, 1935, No. 31331. Convention date, July 4, 1935. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 13, 1936.] [Class 29] Compression machines.-A plant for generating heat by passing a fluid through a thermodynamic cycle uses butane or other heavy hydrocarbon, or similar medium with an overhanging temperature entropy curve and the pressure throughout the apparatus is maintained above atmospheric pressure. A compressor 1<1> draws fluid from an evaporator 3<1> and drives it into a condenser 2<1>. The liquid from the condenser 21 is expanded in a turbine 6<1> on its way to the evaporator 3<1>. This turbine assists in driving the compressor 11. The flow of water which warms the evaporator is regulated by a thermostat in the water outlet from the evaporator while the adjustable nozzle 5<1> of the turbine is controlled by a thermostat in the vapour admission connection to the condenser. A heat accumulator may be included in the liquid circulation system warmed by the condenser. Substances used in the cycle may comprise butane, butylene, propane, pentane, tetramethylmethane, propane fluoride, or butane fluoride or mixtures thereof.
Patent GB-219238-A (GB)
Title: Improvements in kinematographic apparatus
IPC: G03B21/32
Filed: 1923-12-15
Abstract: 219,238. James, G. S. Dec. 15, 1923. Kinematograph apparatus; optical - projection apparatus. - In film-winding means wherein the film is guided from and to a rotary table having a circular row of rollers arranged perpendicularly thereto, the spindles of the rollers are carried by yielding supports which permit the rollers to move radially with respect to the table; the table may comprise concentric parts independently rotatable and the rollers may be carried by a frame having a circular movement. As shown in Figs. 2 and 3, the table comprises concentric parts 18, 18<a>, 18<b>, driven at different speeds by toothed gearing 24, 25 or otherwise, and pins 37 carrying the rollers 38 are pressed by springs 39 towards the outer ends of slots 36 radially formed in a frame comprising upper and lower rings 31. The table may be conical or spherical and may be surrounded by a guard rim 19 having a gap through which the film passes, rollers 28 and a holder 29 for graphite 30 or other lubricant for the film edges being provided adjacent to the gap. The frame 31 may have an arm 32 which, at its outer end, is linked to a fixed part of the apparatus, and may have arms 26 which extend radiallv above the coil of film. As shown, the table is formed with an eccentric 34 which imparts a circular movement to the frame 31 as the table rotates, but the table may alternatively have a series of holes at different distances from its centre to receive a crank pin which also engages a hole in a crossbar carried by the frame 31 and imparts the circular movement to the frame. The rollers 38 may be conical or concave and some or all of their pins 37 may be inclined otherwise than perpendicular to the table; they may be mounted, in a modification, in spring-pressed slide blocks moving in slots radially formed in a fixed central part of the table, the frame 31 being dispensed with. The film may be kept in tension as it passes to the projector bv means of a jockey roller 20 carried by an arm 41 pivoted at 42 and carrying a weight 43. The apparatus may be mounted in the cabinet having at its upper end a mirror and a screen, the image projected through the aperture 35 in the table being reflected by the mirror on to the screen. The mirror and screen may be carried by a frame which is hinged to the cabinet so that it may be turned therein, the top of the cabinet being then closed by a separate hinged lid.
Patent GB-270592-A (GB)
Title: Improvements in tripod stands
IPC: F16M11/16
Filed: 1926-12-13
Abstract: 270,592. Martmann, F. Dec. 13, 1926. No Patent granted (Sealing fee not paid). Stand heads; tripod stands.-The legs a of a tripod stand are pivoted on pins e connecting three plates b which grip a triangular plate c carrying screwed spigots f, g. Discs g, h, secured to the spigots by nuts i, k, are formed with radial slots to permit the legs to be rotated so that either spigot may receive a camera.
Patent GB-465666-A (GB)
Title: Horse shoes
IPC: A01L7/04
Filed: 1935-11-15
Abstract: 465,666. Horseshoes. ANDERSON, J. E. Nov. 15, 1935, No. 31654. Convention date, June 27. [Class 67] The metal reinforcement plate 1 of a rubber shoe is formed at the toe with a pair of holes 12 to receive calks, each hole being surrounded by a boss 16 from which a strengthening rib 17 extends rearwardly. The rubber is moulded around the plate 1 with a recess 8 at the outer edge of each limb below the nail-holes 3, and has holes at the toe in register with those in the plate 1. The blunt calks 14 which are usually employed may be replaced by chisel-pointed calks 18 during icy conditions.
Patent GB-866529-A (GB)
Title: Improvements relating to pipettes
IPC: B01L3/02
Filed: 1958-11-26
Abstract: <PICT:0866529/III/1> A pipette comprising an integral glass body having a capillary section, an aspirating section and an intermediate bulb has the interior surface of the bulb frosted to facilitate inspection for dryness.  In the illustrated embodiment the free end of the aspirating tube 4 is tapered and the bulb, which has an inwardly projecting ridge 7, contains a mixing bead 6.  The pipette may be made on a mandrel as described and claimed in Specification 866,519, a thin steel shell, preferably made of a pair of cups and containing the bead, being used as a former and thereafter being dissolved, e.g. in 50% nitric acid.
Patent GB-293628-A (GB)
Title: An improved hoisting device
IPC: B66F15/00
Filed: 1927-11-25
Abstract: 293,628. Pascoe, A. J. Nov. 25, 1927. Lever load-handling appliances. -In lever lifting-devices of the kind in which a lever of the first order is carried by a half-universal joint and is fitted with load-supporting means at one end and a hauling rope or chain at the other, the lever comprises a telescopic member adjustably fulcrummed on the supporting joint. In the illustrated form as applied to a vehicle, the telescopic tubular lever 8 has an adjustable sliding connection with the bracket 5 which pivots in a vertical plane and rotates in a horizontal plane about the pivot 4. The rod carries a load hook 9 at on end and a holding chain 14 at the other. A strutted bracket 1 supports the appliance on the vehicle; but it may be carried on a separate tripod stand.
Patent GB-1168052-A (GB)
Title: Process for the Dealkylation of Alkylaromatics
IPC: C01B3/40
Filed: 1968-07-05
Abstract: 1,168,052. Hydrodealkylation. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 5 July, 1968, No. 32240/68. Heading C5E. A process for the dealkylation of alkylaromatics comprises (1) converting one or more alkylaromatics with a H 2 -containing gas into one or more aromatics and one or more alkanes at elevated temperature and pressure in a first reaction zone; (2) converting one or more alkanes with steam into a H 2 -containing gas at elevator termperature and pressure in a second reaction zone, and (3) exchanging heat between the first and second reaction zones. The alkanes produced in (1) may be converted in (2), and the H 2 -containing gas produced in (2) may be used in (1). The feedstock for the first reaction zone may be toluene, xylenes, ethylbenzene, mono-, di- and trimethylnaphthalenes or mixtures thereof. Reaction (1) may be carried out at 600-800‹ C. and 35-45 kg/cm.<SP>2</SP> pressure. Reaction (2) may be carried out at 600-800‹ C. and 30-45 kg/cm.<SP>2</SP> pressure in the presence of a nickel or rhenium containing catalyst supported on a carrier and optionally containing 0À1-10% by wt. alkali metal. The example describes the production of benzene from toluene. CO and steam contained in the effluent of reaction (1) or (2) may be converted to CO 2  and H 2  at 300-450‹ C. using a iron oxide-chromium oxide catalyst.
Patent GB-1160531-A (GB)
Title: Improvements in or relating to an Earth Moving Mechanism
Inventor: CUNNEEN JAMES PETER
IPC: E02F3/80
Filed: 1965-07-28
Abstract: 1,160,531. Shovel-grader unit. DEFENCE, SECRETARY OF STATE FOR. 27 Oct., 1966 [28 July, 1965], No. 32241/65. Heading E1F.  In a dozer-shovel unit one of the two earth-engaging members of the unit is so pivotally connected by arms 14 to the lateral edges of the other member that an earth-engaging plate 11 of the first member can form a continuation of the earth-engaging plate 2 of the other member when the unit is to be used for dozing or, when the unit is to be used for shovelling, may extend forward from the lower edge of the plate 2.