baber/WOPTO huggingface dataset:
Patent GB-661635-A (GB)
Title: Improvements in pressure actuated electric switches
IPC: H01H35/26
Filed: 1949-07-18
Abstract: 661,635. Pressure actuation of switches. DIXON, M. G. (Aerotec Corporation). July 18, 1949. No. 18875/49. Class 38 (v). [Also in Group XXVII] A pressure-operated switch device suitable for the control of a water injection pump for an aircraft engine, has a switch unit operated by a bellows through a pivoted lever: a second lever may be interposed between the bellows and the pivoted lever to alter the pressure differential between the closing and opening of the switch. The device comprises a bellows 11 secured at one end to a fixed bracket 16 and connected by means of a nipple 30 to the inlet manifold, and an evacuated compensating bellows 12 adjustably secured at one end to a fixed bracket 17. The free ends of the two bellows are interconnected by means of annular plates 34, 36 and connecting posts 38 so that the effect of atmospheric temperature and pressure changes on the bellows 11 is cancelled by the opposing action of the bellows 12 when subject to the same changes. A spring 31, against which the bellows 11 acts when the pressure is applied, is placed within the bellows 12. A switch 10 of the trifurcated blade spring type is secured to fixed brackets 18, 19 between the bellows 11, 12 and has a stop 56 which may be adjusted by a milled wheel 58 to determine the gap between the contacts 51, 55. The adjustment of this gap permits the adjustment of the pressure at which the switch opens relative to the pressure at which the switch closes. The switch 10 is normally operated by the bellows 11 through the lever 48 pivoted at 49 and bearing on the actuating pin 50 of the switch, Fig. 4. If however the adjustment of the pressure differential provided by the adjustable stop 56 is insufficient a further lever 63 pivoted at 64 is swung into the position of Fig. 5 so that the bellows 11 acts on the lever 48 through the lever 63 which increases the pressure differential between the opening and closing of the switch.
Patent GB-223872-A (GB)
Title: Improvements in a method of and apparatus for regulating the twist in continuous ring spinning machines
IPC: D01H1/24
Filed: 1924-08-09
Abstract: 223,872. Burkard, P. Oct. 26, 1923, [Convention date]. Addition to 195,983. Variable-speed belt gearing.-The belt is moved along cone drums C, C' to vary speed by a tension pulley e. The pulley comprises a rim mounted on ball bearings b, Fig. 5, and the hub n is mounted eccentrically on a shaft a and held thereon by means of rollers g, g<1> carried by brackets q extending from the hub, or an ordinary pulley may be carried in supports s mounted on the shaft a as shown in Fig. 7. The shaft a is carried in levers l, l<1> mounted on a weighted shaft f, a pedal being provided to raise the weights to slacken the belt. The displacement of the belt is indicated on a dial u.
Patent GB-1429468-A (GB)
Title: Methods and apparatus for directing an interceptor
IPC: G06G1/14
Filed: 1955-06-30
Abstract: 1429468 Calculating apparatus M C J SALMON 30 June 1955 [2 July 1954 23 Feb 1955] 19008/55 Heading G4B In a target interception device, information regarding the target and the interceptor positions and velocities are applied manually to a mechanical plotting device, associated with a map of the area containing the target and interceptor paths, which derives the form of the path of approach of the interceptor to the target. In one embodiment the map is mounted on an interceptor table and is movable in accordance with wind velocity and has associated with it two relatively displaceable points corresponding to the target and interceptor respectively. A calculation installation, which is coupled to the interceptor table, has mechanical signals applied to it corresponding to the speed and heading of the target and interceptor to produce a velocity vector triangle. The coupling between the installation and table produces appropriate movements of the target and interceptor points which correspond to the signals applied to the installation. In a second embodiment, not shown, the target and interceptor positions are displayed on a GRT screen and the information relating to the relative velocity between the target and interceptor is applied to an electronic computer. As shown, Figs. 10, 11, the target speed and headings are indicated by the positions of point 43 and the inclination of shaft 41 respectively. Similarly, the interceptor vector is given by positions of point 50 and shaft 47. On the interceptor table, Figs. 8, 9, the map 14 is mounted behind both the cam 33, representing the final approach path of the interceptor, and the rule 34, representing the initial linear part of the interceptor path. The cam is moved along rule 29 by motor 31 at a speed determined by movement of point 43, i.e. corresponding to the target speed. The target heading is not by the movement of plate 27 coupled to plate 40 of the calculation installation. Circular members 36, 44 are similarly coupled together to give movement of interceptor rule 34. The interceptor headings required are transmitted by radio telephone.
Patent GB-597908-A (GB)
Title: Improvements in speed governors for variable pitch screw-propellers especially for aircraft
IPC: B64C11/30
Filed: 1945-07-25
Abstract: 597,908. Fluid-pressure servomotorcontrol of variable-pitch propellers. DIPROSE, K. V. July 25, 1945, No. 19028. [Class 135] [Also in Group XXVI] A speed governor for a variable-pitch screw propeller comprises weighted bell-crank levers 15 that are pivoted to a casing 24 and engage a collar 18 loaded by a spring 14. Movements of the weights adjust a control valve 29, 30 to connect a pipe 35 to exhaust 32 or pressure supply 34 ; the pipe 35 is connected to the mechanism for varying the pitch of the propeller. Acceleration or deceleration causes the casing 24 to rotate against the action of the spring 47 and rotate a sleeve 39 that has ports 45, 46 that co-operate with ports 43, 44 in a cylinder 36 on either side of a piston 37 mounted on the same rod as the valve 29, 30. In the normal position, pressure fluid supplied through port 40 exhausts equally through the ports 43, 44, but rotation of the sleeve 39 causes one port opening to be reduced and the other increased to cause a pressure to act on the piston 37 to adjust the valve 29, 30.
Patent GB-771710-A (GB)
Title: Processes for the separation of mixtures by means of adsorptive distillation
IPC: C10G25/11
Filed: 1955-07-01
Abstract: The less volatile component or components of a mixture of organic substances is or are separated by distilling the mixture in a distillation zone while introducing into the zone in countercurrent to the ascending vapours a slurry of a finely-divided solid selective adsorbent, such as silica gel, activated carbon, activated alumina or bauxite, in a liquid which boils at a higher temperature than the component or components, the more volatile portion of the mixture being removed as a vapour stream and the less volatile component or components being removed as adsorbate with the adsorbent.  The process is illustrated by the separation of aromatics, such as benzene, toluene and xylenes, from similarly boiling non-aromatics, principally paraffins, the aromatics being adsorbed on silica gel introduced as a slurry with an aromoatic-free gas oil fraction.  The process may also be used to separate olefins from naphtha fractions, paraffinic hydrocarbons from their more highly branched isomers, mixtures of oxygenated compounds produced in the Fischer-Tropsch process, mixtures of isomeric alcohols, such as isomeric butanols, mixtures of isomeric alkylphenols, such as isomeric cresols and xylenols, mixtures of nitrogenous bases, such as alkylpyridines and alklpyrroles, and water from the ethanol-water azeotrope.  The higher boiling liquid carrier forming the slurry with the adsorbent has an initial boiling point at least 25 DEG C above the boiling point of the highest boiling component of the mixture, and is used in proportions of 100 per cent to 1000 per cent by weight of the adsorbent.  The adsorbent, adsorbate and higher boiling liquid carrier are removed from the bottom of the distillation zone and passed to a stripping zone where the adsorbate is distilled off, the resulting slurry of adsorbent and liquid carrier being recycled to the distillation zone.  The stripping is carried out under reflux conditions, usually with the aid of a stripper such as inert gas, or other substance having a lower boiling point than the adsorbate; low boiling paraffins such as propane, butane and pentane may be used to strip aromatic adsorbates.  An additional quantity of liquid carrier may be added to the slurry to assist pumping from the distillation zone to the stripping zone, or to the regenerated slurry from the stripping zone to the distillation zone, being separated from the slurry before introduction in the distillation or stripping zones by means of cyclones.
Patent GB-801616-A (GB)
Title: Improvements in or relating to armchairs, fireside chairs, settees, pouffes or the like
IPC: A47C7/70
Filed: 1956-06-20
Abstract: 801,616. Furniture combinations. KAISER, S. June 20, 1957 [June 20, 1956], No. 19088/56. Class 52(3) A shelf or shallow receptacle 1 is pivoted about an axis 6 to a cross rail 2 of a seat so that it can be swung between concealed and extended positions in which it is located by a protuberance on the shelf or rail engaging resiliently one of two recesses in the rail or shelf on opposite sides of the pivotal axes 6. As shown, a spring- loaded ball 3 on the shelf engages in one or other of grooves 4, 7 in the rail 2, movement of the shelf being limited by a stop 9 on the shelf entering one or other of grooves 10. If the shelf be of plastic material, the protuberance may be a boss thereon, the resilience of the plastic allowing the boss to enter the recesses.
Patent GB-717327-A (GB)
Title: Improvements in drawing instruments
IPC: B43L7/12
Filed: 1951-08-14
Abstract: 717,327. Drawing instruments. GEORGAKIS, V. Nov. 14, 1952 [Aug. 14, 1951], No. 19124/51. Classes 97(2) and 97(3) A drawing instrument consists of a pair of straight arms 10, 11 pivoted together at one end, means for indicating the angle between the arms comprising a degree scale inscribed about a circular pivot 15 forming part of arm 11, the arm 10 being inscribed with an arrow 14 for indicating on the scale the angle between the arms, and a holder 22 for a marking device slidably mounted on arm 11. the holder comprising spring clips 18, 19 such that the marking device may be disposed either parallel to arm 11 or at right angles to the plane of the arms. As shown, arms 10, 11 each have a scale of length and are clamped by a nut 16. The carriage 22 slides along a slot in arm 11 and may be clamped by a knob 26. Removable compass points 30 are fixed to the ends of arms 10. 11. To use as a square or bevel protractor, nut 16 is slacked off and tightened after the arms have been set at the required angle by means of the scale and pointer 14. A lip formed at one edge of arm 10 enables the arm to be set against the work. Lines may then be drawn by a pencil clamped in holder 18 by moving carriage 22 along the arm. By clamping carriage 22 and slackening nut. 16, arm 11 may be swung to draw--circular arcs. The compass points 30 are placed in position to use the instrument as dividers. To use it as a compass, a compass point :is. positioned on arm 10, and a pencil is placed in holder 19 on carriage 22, which is clamped in a convenient position. A pendulum level 31 is mounted in a recess in arm 10 between sheets of " Perspex " (Registered Trade Mark.)
Patent GB-1142892-A (GB)
Title: Mixtures of alkali metal dichloroisocyanurate and a hydratable salt
IPC: C11D11/00
Filed: 1966-05-02
Abstract: 1,142,892. Alkali metal dichloroisocyanurate. FMC CORP. 2 May, 1966 [1 June, 1965], No. 19152/66. Heading C1A. [Also in Divisions C5 and D1] A process for the production of fast-dissolving, stable, free-flowing mixtures of an alkali metal (i.e. sodium or potassium) dichloroisocyanurate and a hydratable salt comprises reacting trichlorisocyanuric acid and an alkali metal cyanurate in a reaction mixture containing at least 11% by weight of water at temperatures of up to about 80‹ C. until the reaction is completed, then adding a hydratable salt to the reaction mixture in amounts sufficient to absorb all of the free water in the reaction mixture as water of hydration and to obtain a total water content in the resulting final mixture of no greater than 16% by weight of the final mixture. Sodium tripolyphosphate is the preferred hydratable salt. Also effective are soda ash, tetrasodium pyrophosphate, trisodium phosphate and borax. The mixture produced can be used in cleaning, disinfecting and bleaching compositions. In examples trichlorisocyanuric acid is reacted variously with sodium tricyanurate prepared in situ, preformed trisodium cyanurate, and an equimolecular mixture of mono- and di-sodium cyanurate, and sodium tripolyphosphate is used as the hydratable salt.
Patent GB-1385085-A (GB)
Title: Guns
IPC: F41G1/35
Filed: 1972-04-25
Abstract: 1385085 Gun with light projector F CASSANI 25 April 1972 19190/72 Heading F3C A gun comprises a barrel 1 and a light projection assembly 2 which is secured to the exterior of the barrel 1. The assembly 2 comprises a lamp 3 which is the light source, a reflector 4, at least one bi-convex lens and a switch (not shown). In an embodiment the assembly is provided with bi-convex lenses 5 and 6. In use the light is beamed on to a target so as to train the gun on to said target. The light may be beamed parallel to the direction of travel of a projectile fired from the gun, may be beamed in a direction converging with the direction of travel of a projectile fired from the gun, may be white or coloured and may have the direction of its beam adjusted. The assembly 2 may be removably secured to the barrel 1 by a holder 7 of resilient material. A battery may be provided for the lamp 3 and the switch may be a microswitch.
Patent GB-808123-A (GB)
Title: Improvements in or relating to radar receiving arrangements
IPC: G01S1/02
Filed: 1955-07-04
Abstract: 808,123. Pulse radar. WHITELEY, J. W. June 21, 1956 [July 4, 1955], No. 19229/55. Class 40 (7). The usual arrangement in a pulse radar M.T.I. receiver, whereby the I.F. signal is phase-sensitively detected using a coherent oscillator and the detector output fed to a cancel device 8 (see Fig. 1) via a direct path and a path including a delay of one pulse repetition period, is modified in that two phase-sensitive detectors 11, 12, are used, one being fed in phase-quadrature relative to the other from a two-phase coherent oscillator 14. The " sin " and " cos " channel detector outputs are fed via gates 15, 17 and 16, 18 to input terminals 1, 2 respectively of the comparison and display system. The gates are switched by pulses from push-pull amplifiers 19, 20 such that displays associated with the " sin " and " cos " channels are given alternately and in predetermined time sequence ; in the embodiment pulse trains B, C containing a mixture of waves of different periods and each having an overall repetition period of 18 pulse repetition periods (see Fig. 2), are derived from transmitter-triggering pulses A and fed to terminal 21, 22 respectively. These pulse trains may have any other overall repetition period but this should not be more than the time for which the scanning beam illuminates a stationary target. The two-phase coherent oscillator may be replaced by a single-phase oscillator with a phase-shift network or a singlephase oscillator may feed both detectors and a phase-shift network be inserted in the input to one detector; the phase between detector outputs may be other than 90 degrees.
Patent GB-239678-A (GB)
Title: An improved device for hanging or supporting coats, ladies jumpers, woollen jackets and other garments
IPC: A47G25/40
Filed: 1924-08-14
Abstract: 239,678. Cross, A. Aug. 14, 1924. Coat and like hangers.-A hanger for supporting woollen coats and similar garments, particularly for drying or airing, comprises a part a similar to an ordinary coat hanger, hinged extensions b, c and clips d. In use, the extensions b, c hold the garment sleeves in a horizontal position, and the clips d are passed over and grip frictionally a supporting rope. For use as a coat hanger, the extensions b, c are folded back on the part a and are supported by catches g, and the clips d may be turned down to suspend a skirt. Trousers may be suspended by being gripped at one end between the part a and the extensions b, c, the latter being locked by catches, not shown. In a modification, the parts a, b, and c are made as a single rigid strip with three clips d.
Patent GB-894512-A (GB)
Title: Waveguide load
Inventor: WOODCOCK RAYMOND
IPC: H01P1/26
Filed: 1959-06-05
Abstract: 894,512. Waveguide dissipative terminations. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 3, 1960 [June 5, 1959], No. 19336/59. Class 40(8). A waveguide terminal load comprises one or more bodies of a dissipative substance containing a number of embedded metal plates for conducting heat from the bodies to a surrounding casing. The bodies 2, 3 may be wedge-shaped and are composed of a cement or resin loaded with iron dust. The bent-over, outer edges of copper plates 5 are soldered to a casing 4 which forms an extension of the waveguide. The plates lie at right angles to the electric vector of the incident energy. Their inner edges do not extend to the surfaces of the bodies 2, 3. Heat is conducted away from the casing 4 either by external fins (not shown), or by a water jacket 6.
Patent GB-443710-A (GB)
Title: Improvements in the manufacture or treatment of cellulose ester materials
IPC: D06M11/38
Filed: 1934-06-30
Abstract: Cellulose esters such as cellulose acetate, formate, propionate, or butyrate, or mixed esters, or ether-esters, are subjected to saponification treatment with an alkaline salt of an organic base. The cellulose ester may be in the form of filaments or films.  The organic base may be mono-, di-, or trimethylamine or ethylamine, or propylamine, ethylene diamine, mono- or dimethyl ethylene diamine, propylene diamine, triamino propane, triethanolamine, tetra-methyl or ethyl ammonium hydroxide, a g  - diamine - b  - propanol, amylamine, hexylamine, piperidine, or cyclo-hexylamine.  The salt may be a carbonate, silicate, or phosphate.  Instead of the carbonates, the corresponding substituted carbaminic acids may be used.  The saponifying medium may contain a proportion of free organic base in addition to the salt.  Small amounts of caustic soda or other mineral alkali and accelerating agents such as copper, zinc, silver, or nickel, or oxides or salts of these metals, may also be present.  The saponifying agent may be in aqueous or alcoholic solution. Swelling agents may be present.  Filaments may be shrunk or stretched before, during, or after saponification.  They may be treated with soaps, sulphonic acids or other wetting agents.  The filaments may be saponified in hank form, or while travelling as single threads or as a warp.  The treatment may be by bath or padding methods, and the filaments may pass through a heated zone. Saponification may be partial or complete.  In examples, cellulose acetate threads are passed in warp formation through baths containing methylamine silicate, methylamine carbonate, or trimonomethylaminephosphate, and free methylamine.  The treatment may be carried out under pressure. Specifications 316,521, 318,468, [both in Class 2 (ii)], 380,504, 380,505, 389,823, 430,351, 435,806, and 443,707 are referred to.
Patent GB-1459462-A (GB)
Title: Membrane separation equipment
IPC: B01D65/00
Filed: 1974-05-03
Abstract: 1459462 Housing membrane separation units DORR-OLIVER Inc 3 May 1974 [3 May 1973] 19617/74 Heading B1X A device for housing a separation unit having semi-permeable membrane surfaces for separating solids from a carrier liquid feed comprises (a) an enclosed casing 23 having inner and outer side wall surfaces 24, (b) inlet means 16 for receiving the carrier liquid and outlet means 27 for discharging a carrier liquid concentrated with solids both provided on the casing, (c) means 13 for mounting the separation unit on the inner sidewall surface of the casing, (d) permeate outlet means 19 extending from the separation unit through the sidewall of the casing, (e) a circulation conduit 36 provided within the casing and spaced from the separation unit, and (f) liquid circulation means including pump 17 situated within the conduit for directing the carrier liquid across the membrane surfaces 15 of the separation unit and recirculating through the conduit. Applications mentioned include the treatment of cheese whey.
Patent GB-1502529-A (GB)
Title: Alternating current electro-magnet
IPC: H01F7/16
Filed: 1976-05-13
Abstract: 1502529 Electromagnets CENTRUM BADAWCZO - KONSTRUKCYJNE OBRABIAREK 13 May 1976 [15 May 1975] 19705/76 Heading H1P An A.C. electromagnet comprises a housing 1 containing a laminated ferromagnetic body 2 enclosing a coil 2; a laminated armature 4 having a leg 7 within the coil with a face 14 displaced by an air gap from an opposed face of a sleeve projecting into the coil from body 2. An operating pin 8 is also carried by the armature, which has laterally extending members 5 whose faces 13 are separated from corresponding faces 13<SP>1</SP> of body 2. This carries projections 6 of reduced thickness spaced by a small air gap 12 from the ends of members 5. Body 2 is located axially on resilient washers 9, 10 and the armature rests on resilient buffer 1 when the coil is de-energized. When the latter is energized flux # of the coil divides into flux #<SP>1</SP> between surfaces 13, 13<SP>1</SP> and flux #<SP>11</SP> between projections 6 and armature members 5 so that the operating flux is reinforced. The magnetic section of the air gaps between surfaces 13, 13<SP>1</SP> and the projections 6 is chosen to obtain a required force/energization characteristic, and armature 4 is attracted so that surfaces 13, 14; 13<SP>1</SP>, 14<SP>1</SP> are in contact. On de-energization the armature is returned to buffer 7 by gravity or pressure on pin 8.
Patent GB-361274-A (GB)
Filed: 1931-07-09
Abstract: 361,274. Turning piston rings. ABRAMSON, A., 87, Fochova, Prague. July 9, 1931, No. 19801. Convention date, July 17, 1930. [Class 83 (iii).] Chucks ; mandrels.-Apparatus for turning piston rings, in which the rings are held between a pair of clamping discs, may be arranged for turning both the inner and outer diameters of the rings. The rings are forced together and clamped centrally of their width between the flanged end-pieces 2, 3 by bolts 4, Fig. 1; the disc 2 has a spigot by which it may be centralized against the surface plate 6 of a lathe and is clamped thereto, by the threaded cap 5, for turning the inside diameters of the rings. On the completion of the inside turning operation, piston rings and clamping pieces, still securely held together by the bolts 4, are reversed and slid on to a mandrel 7, Fig. 2, to which they are secured by a bolt 8, the outside diameters may then be turned after removing the bolts 4.
Patent GB-1472691-A (GB)
Title: Golf tee
IPC: A63B57/00
Filed: 1975-05-12
Abstract: 1472691 Golf tee D M BONDU 12 May 1975 [15 May 1974] 19896/75 Heading A6D A golf tee 10, comprises a cylindrical body 12 having an end face 16 disposed in a plane which is at an oblique angle relative to the longitudinal axis of the tee and an opposite pointed end portion 14 for insertion into the ground. In a preferred embodiment the angle between the longitudinal axis and the plane in which the face 16 is disposed is 45‹ and the tee may be made from plastics material.