baber/WOPTO huggingface dataset:
Patent GB-323527-A (GB)
Title: Variable speed gearing
IPC: F16H61/02
Filed: 1928-09-06
Abstract: 323,527. Saxby, F. W. Sept. 6, 1928. Gearing, variablespeed.-In a variablespeed epicyclic gearing comprising, a gear wheel 10, integral with the driving shaft, meshing with pinions 3 which engage a gear wheel 11 fixed on the driven shaft, the carrier 4 secured to a housing 1 is externally toothed and meshes with a gear wheel 5 carrying a governor 6 with a plate 7 which can be variably controlled. The plate 7 is gripped between slipper 8 and a spring pressed shoe 9 and the frictional force lessens as the slipper 8 is withdrawn. The slipper may be controlled by a hand or foot-operated lever, or automatically by the load or gradient.
Patent GB-462472-A (GB)
Title: Service tray
IPC: A47G23/06
Filed: 1935-09-16
Abstract: 462,472. Trays. ANGLO - SWISS INDUSTRIES, Ltd. Sept. 16, 1935, No. 25641. Convention date, Sept. 15, 1934. [Class 128] A tray is provided with a marginal frame projecting downwards below the carrying surface, a cross-piece being fastened to the frame to form a handle. The frame b has four recesses d, e, f, c, e, c and f serving as armrests and d, in conjunction with c, for picking up the tray... The handle is made of two strips of wood m, n, set at right-angles, the -space between the strips being partly filled by blocks p, leaving a recess o for the hand. The handle may be formed of a single, centrally recessed strip of wood.
Patent GB-266018-A (GB)
Title: Improvements in gramophones or disc talking machines
IPC: G11B3/46
Filed: 1925-10-14
Abstract: 266,018. Shearer, M., and Coe, F. T. D. Oct. 14, 1925. Tool-arm mountings. - The stylus bar is fixed to the centre of a flexible metal strip 3 having V-shaped edges engaging in V-shaped recesses 4 of wider angle provided in projection 5 on the sound box 2 and in blocks 6 adjustably secured to the sound box by screws 7. In a modification. the length of the supports is reduced as shown at 4<x>, Fig. 11, by bevelling off each side. The strip fits in a slit at the top of the needle socket and is secured by brazing. The Specification states that the arrangement permits rocking in addition to Hexing of the strip.
Patent GB-169975-A (GB)
Title: Improvements in and relating to electric liquid heaters
IPC: F24H1/10
Filed: 1921-09-28
Abstract: 169,975. Festa Akt.-Ges. Oct. 7, 1920, [Convention date]. Addition to 158,842. Heating by electricity.-In flow heaters for use with a three wire system, of the kind described in the parent Specification, the number of sectorshaped electrodes surrounding the central insulating tube is made greater than the number of supply leads, one or more of the leads being subdivided and connected to the electrodes so that the load formed by the resistance of the liquid is equally distributed between the conductors. Fig 1 shows an apparatus having six electrodes, A. B, C, A<1>, B<1>, C<1>. In a modification there are four electrodes, an opposite pair of which are connected to the neutral wire, the remaining electrodes being connected to the positive and negative leads respectively. The Specification as open to inspection under Sect. 91 (3) (a) also describes arrangements of elements comprising concentric electrodes of the type described in Specification 154,189. Fig. 1 (Cancelled) shows two such elements heated by a three-wire circuit, the current flowing from the electrodes A, B<1> to the electrodes B, A<1> respectively, and from the electrode B through the zero wire to the electrode B<1>. Fig. 2 (Cancelled) shows the arrangement for utilizing a threephase current, which passes through the electrodes A, A<1>, A<2> to the electrodes B, B<1>, B<2>, and thence to the zero point C; the electrodes A, A<1>, A<2> may be in one vessel, in which case the arrangement may be used for a three-wire supply of direct or alternating current. A modification of Fig. 1 is described wherein the electrodes are arranged in line. This subject-matter does not appear in the specification as accepted.
Patent GB-735833-A (GB)
Title: Green body from which a ferrospinel composition having ferromagnetic properties can be produced
IPC: C04B35/01
Filed: 1953-09-17
Abstract: 735,833. Magnetic compositions. RADIO CORPORATION OF AMERICA. Sept. 17, 1953 [Oct. 14, I952], No. 25726/53. Class 38 (2). A green body from which a ferrospinel composition having ferromagnetic properties can be formed comprises a mixture of powdered metal oxides, water emulsion of paraffin and potato starch flour. In making a ferrite material, ¢ per cent and 1 per cent by weight respectively of potato starch flour and zinc stearate are added to a mixture of powdered oxides comprising in parts by weight 20 of MnO 2 , 10 of ZnO, 70 of Fe 2 O 3 , and 2 of CuO which oxides have been calcined at 900‹ C. About 8 per cent by weight of an emulsion of 46 per cent paraffin and 54 per cent water is mixed in and the mixture is worked into a puttylike mass with 14 per cent by weight of water, and converted into pellets which are dried and moulded into green bodies. These are fired at 900-1500‹ C. for 10 minutes to six hours. The zinc stearate which acts as a lubricant during moulding may be omitted or replaced by stearic acid or magnesium stearate. The potato starch flour may be present in weight between “ per cent and 1¢ per cent and the emulsion may comprise from 1 to 5 parts of water per part of paraffin. The oxides may be of Mg, Zn and Fe.
Patent GB-1174904-A (GB)
Title: Ignition Switches
Inventor: CRYER EDWARD
IPC: B60R25/021
Filed: 1966-06-09
Abstract: 1,174,904. Mechanical switches. JOSEPH LUCAS (INDUSTRIES) Ltd. 3 May, 1967 [9 June, 1966], No. 25728/66. Heading H1N. In an ignition switch for a road vehicle in which a rotor 17, Fig. 2, first completes the ignition circuit and then completes the starter motor circuit a catch mechanism comprising a spring loaded feeler 55, Fig. 2, and a cam track 58 is arranged to prevent rotation to complete the starter motor circuit unless the rotor has been previously rotated back to the position at which both circuits are broken. The arrangement prevents inadvertent operation of the starter motor when the engine is running. The feeler 55 projects through a radial bore 57 in the rotor 17 and during switching on of the ignition is deflected axially by riding along ramp 61, Fig. 3, and when the starter circuit is closed drops over the enlarged end of the ramp. On return to the intermediate position the feeler 55 is deflected by the edge of the enlarged end of the ramp 61 and finally engages edge 62 which prevents return of the rotor 17 until it has been turned to the off position. Spring loaded ball 41 engaging detents 43 determines the " on ", " off " and " auxiliary circuit " positions, the ball 41 engaging ramp 47 during closure of the starter motor circuit. In this position the rotor is rotated against the action of a return coil spring 36, Fig. 1 (not shown) having one end engaged in a slot of the rotor 22 and the other end engageable with a stop 37 on the switch casing 11.
Patent GB-985583-A (GB)
Title: Improvements in and relating to hot foil stamping
Inventor: EGAN REGINALD JAMES
IPC: B29C59/02
Filed: 1962-07-05
Abstract: 985,583. Hot foil stamping. METAGLO Ltd. July 5, 1963 [July 5, 1962], No. 25900/62. Heading B6J. A method of hot foil stamping an article or a portion of an article formed of a material which is not thermoplastic or sufficiently resilient at the stamping temperature, comprises forming a coating of a thermoplastic resin on the surface to be stamped, and then hot-stamping a foil on to the applied coating. The thermoplastic resin coating may be applied by spraying, brushing, dip-coating, roller coating or curtain coating. Suitable resins include polymers of acrylic or methacrylic esters such as the methyl esters, and vinyl chloride vinyl acetate copolymers. Pigments, stabilizing agents and dyes may be added and the coating when dried may be transparent or pigmented, full gloss, semi-gloss, eggshell or matt as required. Suitable resins may have reactive groups such as carboxylic groups added which enable the resins to be cured by the application of heat so that the resins are toughened but remain sufficiently thermoplastic or resilient for successful hot foil stamping.
Patent GB-1071383-A (GB)
Title: Field-effect semiconductor devices
IPC: H01L29/78
Filed: 1964-06-23
Abstract: 1,071,383. Semi-conductor devices. HITACHI SEISAKUSHO KABUSHIKI KAISHA. June 23, 1964 [June 24, 1963], No. 25926/64. Heading H1K. A field effect transistor is formed in a body 1 of one conductivity type by providing regions 2, 2a connected by a surface channel layer 3a, these regions all being of the opposite conductivity type. The invention is characterized by the channel layer having a conductance (conductivity and/or thickness) which is non- uniform in the direction of the current flow. between source and drain electrodes 3, 4, 5 connected respectively to regions 2, 2a. The regions 2, 2a, 3a are formed by diffusion, and the non-uniform conductance in layer 3a is obtained by a post-diffusion treatment involving heating in an electric field as described in Specification 1,071,384. A surface oxide layer 6 has an area contact gate electrode 7 attached to it adjacent the channel layer 3a.
Patent GB-689856-A (GB)
Title: Improvements in or relating to densitometers
Inventor: DYSON ERNEST DARWENT
IPC: G01J1/24
Filed: 1950-10-25
Abstract: 689,856. Photo-electric densitometers. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Jan. 25, 1952 [Oct. 25, 1950], No. 25941/50. Class 40 (iii). In a transmission densitometer two interlaced sets of light pulses are received by a lightsensitive cell, the electrical output of which is metered at the fundamental frequency of one of the sets of pulses so that when balance between the pulses is obtained by adjusting the test beam the fundamental frequency does not appear, the position of the adjusting means then being an indication of sample density. As shown, light from a source 1 forms a comparison beam S and a test beam T. The beams are chopped alternately by means of a motor-driven slotted cylinder 2 surrounding the light source. Beam T is focused on an opal screen, diffused light from which passes through the sample 6 and an adjustable optical wedge 7 to a photo-multiplier tube 8. Beam S also reaches tube 8 by way of mirrors M1, M2 and a spherical mirror 9 and an adjustable diaphragm 10 and wedge 11. The output of the multiplier tube is amplified on an amplifier sensitive to the frequency of each set of pulses. Then when balance occurs between the two beams this frequency disappears and the amplifier receives light pulses of double the frequency, to which it does not respond. Balance is indicated by a meter M. Circuit (Fig. 2).-The output of the photomultiplier tube 8 is fed through three stages of resistance-capacity coupled amplifiers consisting of the left-hand side of double triode V1 and pentodes V2 and V3. The amplifier is made sensitive to the frequency of one of the train of pulses by a high Q tuned circuit in the anode circuit of valve V1 and by a parallel-T resistancecapacity network RC connected in the anode to grid feed-back circuit of valve V2. The output of valve V3 is indicated on a meter M through a full-wave rectifier circuit. Initially the comparison beam is blanked off, and a film of standard transmissivity is inserted.
Patent GB-1181291-A (GB)
Title: Process for the production of Polyester Moulding Compositions
Inventor: HEIDEL KLAUS
IPC: C08L51/08
Filed: 1967-06-06
Abstract: 1,181,291. Coating. CHEMISCHE WERKE HULS A.G. 6 June, 1967 [7 June, 1966], No. 26019/67. Heading B2E. [Also in Divisions D1 and C3] A curable polyester press-moulding composition is prepared by impregnating a fibrous carrier material and/or reinforcing material with a polyester moulding composition which contains, in addition to (1) an unsaturated polyester, (2) an unsaturated compound polymerisable thereon, (3) a curing catalyst, (4) a polymerisation inhibitor and (5) magnesium oxide, an anhydride of a polycarboxylic acid in an amount of 0.1 to 30% by weight based on the polyester component (1). In the Examples glass fibre mats are used.
Patent GB-1422685-A (GB)
Title: Oscillatory anemometer
IPC: G01P5/18
Filed: 1973-05-31
Abstract: 1422685 Measuring gas-flow electrically POLSKA AKADEMIA NAUK ZAKLAD MECHANIKI GOROTWORU 31 May 1973 [2 June 1972] 26097/73 Heading G1N An oscillatory anemometer comprises a thermal emitter 4 and thermal sensor 3 arranged in a stream of flowing gas with the emitter upstream of the sensor, an amplifier 5 connected to receive a signal from the sensor and to feed an amplified signal to a bi-stable flip-flop 6 from which the output signal is connected to an arrangement 2 for keeping the temperature of the emitter constant at a first temperature with the flip-flop in a first state and for keeping emitter temperature at a second temperature when the flip-flop is in its other state. As the flip-flop changes state heat pulses are generated by the emitter which are transferred by the gas flow to the sensor 3 which is maintained at constant temperature by heat controller 1. The heat pulses detected by the sensor cause the controller 1 to produce a signal to reduce the current supplied to the sensor 3 and to cause the flip-flop to change its state. The delay between emission of heat pulses and their detection by the sensor is a function of fluid flowrate and controls the frequency of oscillation of the circuit loop formed. A frequency detector 7 is connected to the flip-flop output.
Patent GB-444294-A (GB)
Title: Improvements in and relating to evaporators for refrigerating systems
IPC: F25B39/02
Filed: 1935-09-20
Abstract: 444,294. Refrigerating. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Sept. 20, 1935, No. 26111. Convention date, Sept. 20, 1934. [Class 29] Evaporators.-In refrigerator evaporators of the flooded type spaces formed as traps are provided below the upper surface of the liquid refrigerant in which a body of vaporized refrigerant collects which serves to initiate the general vaporization of the refrigerant. The invention may be applied to an evaporator 18 of the type described in Specification 438,707. In this evaporator a refrigerant passage 19 having a closed end is formed with an indentation 26 which serves to trap vapour in the closed end of the passage. Bubbles of vapour escape when this space is overfilled and rise through the passage 19 facilitating ebullition and circulation therein. In an alternative construction inverted cup shaped baffles may be provided in the refrigerant passages to trap vapour. Also in vertical refrigerant passages vapour may be trapped between a wall of the passage and a downwardly directed baffle secured thereto.
Patent GB-863475-A (GB)
Title: Earth working rotor
Inventor: HOWARD ARTHUR CLIFFORD
IPC: E02F3/18
Filed: 1958-08-14
Abstract: 863,475. Breaking up earth &c. ROTARY HOES Ltd. July 30, 1959 [Aug. 14, 1958], No. 26119/58. Class 68(1). A machine for breaking up and mixing soil to form a constituent of the aggregate in the making of a roadway, comprises an earthworking rotor having sets of earth cutting tools 17 which sets are closely spaced axially of the rotor shaft 10, the tools in the sets being staggered from set to set, and disposed tangentially to an imaginary circle concentric with the shaft 10, and shaped or provided with means for moving the earth laterally of each tool, the end sets being provided with additional outwardly inclined cutters 23 for cutting side clearances for the rotor. The shaft 10 is driven by a power unit, or by the power take-off of a tractor, and is provided with polygonal, as shown triangular, hubs 12 each of which is displaced relatively to its neighbours by an angle of 40 degrees. The end hubs 12 have larger triangular plates 12a secured thereto for carrying the additional cutters 23. V-sectioned tool supports 14<SP>a</SP>, 14<SP>b</SP>, 14<SP>c</SP> are welded at their apices to the hubs 12, the supports having projecting parts which are stiffened by welded gussets 16. The tools 17 are also of V-section and are adjustably clamped in the supports 14,<SP>a</SP> 14<SP>b</SP>, 14<SP>c</SP> by wedge-blocks 21 which jam between the tools 17 and bridges 18 welded to the free edges of the supports, a plate 19 welded to each bridge 18 forming an abutment for the clamping bolt 20. The large plates 12<SP>a</SP> are displaced at an angle of 60 degrees to the associated plates 12, and the inclined cutters 23 are mounted approximately midway between the associated cutters 17. A guide 22 is welded to each edge of the plates 12<SP>a</SP> and the cutters 23 are clamped therein by a bridge, wedge and bolt arrangement similar to 18, 21, 19. Some of the guides 14<SP>a</SP>, 14b, 14<SP>c</SP> may have a laterally extending blade welded thereto to sweep the cut soil over the rotor and prevent it from becoming choked. The V-sections of the cutters 17 move the earth laterally.
Patent GB-967718-A (GB)
Title: N-substituted azaspiranes
IPC: C07D209/54
Filed: 1961-07-19
Abstract: The invention comprises compounds of the general formula: <FORM:0967718/C1/1> (wherein A is a mono- or bi-cyclic saturated carbon ring of at least 5 carbon atoms, optionally substituted by one or more alkyl radicals, n is 0 or 1, and R is an alkyl or alkoxyalkyl radical of up to 22 carbon atoms) and non-toxic acid addition and quaternary ammonium salts thereof, and their preparation by heating an amine R.NH2 with an anhydride of the formula: <FORM:0967718/C1/2> and reducing the resulting imide, optionally followed by acid addition or quaternary ammonium salt formation.  The compounds of the invention exhibit nervous and cardiovascular system activity.
Patent GB-687380-A (GB)
Title: Process for the purification of alcohols
IPC: C07C29/74
Filed: 1950-10-26
Abstract: A process for the purification of an alcohol comprises bringing the alcohol which has received preliminary purification by fractional distillation into intimate contact with one or more ion exchange resins.  Atmospheric temperature and pressure or elevated pressure and/or temperature may be employed.  The alcohol may be mixed with the resin and filtered or passed through a bed of resin and the latter may be regenerated if an anion-exchange resin by flushing with a dilute solution of alkaline material such as sodium hydroxide, ammonium hydroxide or sodium carbonate whilst if a cation exchange resin by washing with a dilute solution, e.g. of hydrochloric or sulphuric acid.  Anion- and cation-exchange resins may be used together or consecutively.  Before or after the treatment the alcohol may be hydrogenated or refluxed with caustic alkali or permanganate. Isopropanol produced by the catalytic hydration of propylene may be fractionated, refluxed with potassium permanganate or other oxidizing agent such as sodium hypochlorite, hydrogen peroxide, sodium chromate or dichromate before treatment with the ion exchange resin. Representative anion-exchange resins are those of the phenol-formaldehyde-polyamine type, e.g. prepared by condensing phenols with formaldehyde to form intermediate water-soluble condensates containing methylol groups and further reacting with polyamines and heating, or the products obtained by condensation of aliphatic polyamines with polyhalogen derivatives of hydrocarbons. Representative of cation-exchange resins which may be used are phenol-formaldehyde sulphonic acid resins, a carboxylic acid resin and a sulphonated cross-linked polystyrene resin.  Suitable commercial resins mentioned are "Amberlite" (Registered Trade Mark), IR-4B, IRA-400, IR-100, IRC-50, IR-120 and "Ionac" A-300, A-293-M, C-200 and C-212.  In examples: (I) isopropanol, prepared by the hydration of propylene in the presence of a sulphuric acid catalyst is successively fractionated and passed through "Amberlite" IR-4B freshly regenerated with sodium hydroxide solution.  A heart cut from the fractionated product is diluted with water and the odour compared with a solution of untreated isopropanol; (II) a similar process is carried out after treating the starting material with potassium permanganate.  Similar runs were made using the other commercial resins mentioned.  The process may be applied to other alcohols, e.g. ethanol or other aliphatic monohydric alcohols produced by catalytic hydration of olefines.  Specification 489,173 is referred to.
Patent GB-965969-A (GB)
Title: Improvements in or relating to stands for drawing boards
Inventor: DARGUE ERIC LEWIN
IPC: A47B97/04
Filed: 1962-07-07
Abstract: 965,969. Drawing board stands. DARGUE BROS. Ltd. July 8, 1963 [July 7, 1962], No. 26151/62. Headings A4H and A4W. A stand for a drawing board comprises a frame 10 of polyester resin or similar plastic, and an integral cantilever arm 11, the arm being of hollow triangular section and the frame an open-topped shell divided by ribs 12, 13 into compartments in which ballast is placed. The frame is designed to fit within a wooden reference table desk unit and the polyester resin is preferably reinforced with glass fibre. In a modification the frame is built up from wooden members and has wooden panels to which an arm of polyester resin is bolted.
Patent GB-344803-A (GB)
Title: Improvements in and relating to the separation of dry materials
IPC: B03B4/04
Filed: 1929-08-28
Abstract: 344,803. Separating solid materials. HOLMES, C. W. H., Deneside, Alverstone Avenue, Low Fell, and BIRTLEY CO., Ltd., Birtley, both in Durham. Aug. 28, 1929, No. 26220. [Class 117.] Apparatus for separating materials, such as a mixture of coal and shale or other mineral and agricultural products, consists of a stationary trough 4 with a perforated base 3 on which the materials are subjected to a continuous or pulsating air pressure from the air chamber 1 whereby they are stratified according to their densities, the lower and denser stratum being removed through adjustable discharge openings 12 by a conveyer 8 travelling over the surface 3, and the upper and lighter stratum being removed by the upper flight of the conveyer or another conveyer travelling in the opposite direction. The depth of the trough and the distance between the two conveyers may be adjustable, and the mass of material may be agitated to assist stratification by the vibrations of transverse grid members 16, 17 mounted on a frame 18. In a modification, the supporting surface may itself constitute the conveyer, being formed as shown in Fig. 7 of perforated plates 20 provided with short t rightangle e flanges. In the lower run, the plates lie horizontally to form the perforated support and the flanges act to discharge the lower stratum. In the upper run the plates are turned by a spider 22 so as to hang vertically. The feed hopper 6 is mounted for adjustment along the length of the trough. The apparatus may be applied to the process described in Specification 322,480, [Class 117, Sifting &c.]. Specification 299,936, [Class 117, Sifting &c.], also is referred to.
Patent GB-601861-A (GB)
Title: Improvements in or relating to electromagnetic relays
IPC: H01H51/10
Filed: 1945-10-09
Abstract: 601,861. Electromagnetic relays. AUTOMATIC ELECTRIC LABORATORIES, Inc. Oct. 9, 1945, No. 26278. Convention date, Oct. 9, 1944. [Class 38 (v)] Two relays mounted on a common plate 140 are interlocked by means of two levers, controlled respectively by the two armatures 102, 202 the arrangement being such that when either armature is in the attracted position, the other armature is free to move but when either armature is in the released position, the other armature is locked in the attracted position. The Figure shows one lever 11] controlled by the armature 102. When the armature 102 is attracted, a roller 106 operates the lever 111 so that its right-hand arm 112 rises and comes clear of a projecting portion 207 on the armature 202 so that this may move to the released position. In so doing a second lever behind the two relays and similar to the lever 111, moves so as to lock the armature 102 in the attracted position. The levers 111 are mounted on eccentric pivots which can be adjusted. The contact-spring operating arms of the armatures when unoperated engage fixed projections which produce a twisting action on the armature pivots thereby reducing wear due to vibration.