baber/WOPTO huggingface dataset:
Patent GB-1061418-A (GB)
Title: Device for coupling two shafts with a non-reversing mechanism
IPC: F16B1/04
Filed: 1964-08-04
Abstract: 1,061,418. Locking rotary elements. SOC. GENERALE D'ENTREPRISES. Aug. 4, 1964 [July 19, 1963], No. 30598/64. Heading F2E.  A device for locking an output shaft of a coupling between a driving member and a driven member under continuous load, e.g. a winch drum, to prevent reverse rotation of the output shaft when the drive is disconnected, whilst providing for reverse rotation of the output shaft whenever a reverse driving torque is applied, comprises a pair of brake shoes 11, 12, formed from a continuous band having a pair of linings, which through the action of a spring 13 normally hold stationary a brake drum 7, a brake band 17 held against a drum 8 by a spring 18 and connected by a link 20, lever 16 and shaft 15 to a cam 14 for releasing the shoes 11, 12, and a coupling formed by flanged discs 3, 4 secured respectively to output and input shafts 2, 1, each disc having a free-wheel comprising balls 9 engaged in sloping grooves in its flange, and there being a lost-motion connection between the discs consisting of pins 5 on driving disc 4 engaging in slots 6 in driven disc 3. When shaft 1 rotates in the forward direction 10 the balls 9 roll freely around the interiors of the two drums, but when the driving torque is discontinued the balls 9 of disc 3 immediately become wedged in drum 7 owing to the load on the output shaft to lock the latter. When a reverse driving torque is applied to shaft 1 pins 5 travel to the other end of slots 6 and, since rollers 9 of disc 4 also become wedged in drum 8, cause the latter to rotate together with band 17, so actuating via a link (20) (Fig. 3, not shown), a lever 16 to rotate cam 14 to release the shoes 11, 12. This enables the driven shaft 2 to be rotated in reverse, since band 17 is lightly applied to drum 4 and slips. For a prolonged reverse operation the band 17 may be manually released by a cable. A release lever (21) is also provided for the cam 14 to allow free-running of the load in reverse under manual control.
Patent GB-171701-A (GB)
Title: Pressure equalising valve for steam-engine piston valves
IPC: F01B31/22
Filed: 1921-11-17
Abstract: 171,701. Koch, H. Nov. 22, 1920, [Convention date]. Anti-vacuum apparatus, and apparatus for running without steam.-Piston distributing-valves for locomotive &c. steam-engines are provided with pressure equalizing valves v which are subject to the differential action of the pressures in the cylinder and valve-chest b acting on the valve annular areas h, f respectively, and, additionally, to the pressure of the exhaust on the outwardlyextending hubs of the valves v. Under excessive cylinder pressure the valves are raised from their seats, and, when a vacuum occurs in the cylinder and valve-chest, the pressure in the hubs of the valves raises them from their seats and puts be cylinder ends into communication.
Patent GB-643750-A (GB)
Title: Improvements in and relating to thermosetting moulding compositions
IPC: C08J3/14
Filed: 1947-11-20
Abstract: A moulding composition without fillers comprises an intermediate melamine-formaldehyde resin which is heated with an acid (or acid-liberating) curing agent to advance the polymerization sufficiently to enable it to be rapidly cured in the mould but not so far that flow will not take place. Preferably the resin is produced by reaction under alkaline conditions, i.e. pH between 8 and 10, and has a hydrophobe value before drying such that the resin solution precipitates upon dilution to 20 to 60 per cent solids at 15 DEG  to 20 DEG  C.  The moulded products, e.g. buttons, are transparent; when a mould lubricant is added they may be translucent, and colouring materials and opacifiers may be incorporated.  Curing agents include phthalic anhydride and various other specified organic anhydrides and acids or buffers such as triethanolamine acetate.  Mould lubricants include zinc and other specified stearates, lauroyl and stearoyl -dicyandiamides and -guanyl ureas.  The partial polymerization is preferably effected by milling on heated differential rolls, the resultant sheet being cooled and granulated and preformed into pellets.
Patent GB-871775-A (GB)
Title: Improvements relating to pneumatic springing systems for motor vehicles
IPC: B60G17/052
Filed: 1959-09-10
Abstract: 871,775. Adjusting body height. DAIMLERBENZ A.G. Sept. 10, 1959 [Sept. 24, 1958], No. 30949/59. Class 108(2). A pneumatic suspension for motor vehicles comprises pneumatic springs 1 associated with the wheels and connected by ducts 2 to levelcontrol valves 3. The control valves 3 are connected through a reducing valve 12 to a compressed air reservoir 6 which is supplied with compressed air by an air compressor 9 through a duct 7 provided with a non-return valve 8. The valves 3 are also connected by ducts to atmosphere through a pressure-limiting valve 13. There may be a reducing valve and a pressure-limiting valve for each vehicle axle and these may be set for the same or different pressure valves as the valves of the other axle. It is also possible to provide a pressure-limiting valve and a reducing valve for one axle only. Reference has been directed by the Comptroller to Specification 811,265:
Patent GB-463781-A (GB)
Title: Improvements relating to electrical contact plugs or pins
IPC: H01R13/05
Filed: 1936-11-13
Abstract: 463,781. Making electrical contact pins. KLEINMANN, E., and MENDEL, A. Nov. 13, 1936, No. 31090. Convention date, Nov. 13, 1935. [Class 83 (ii)] [Also in Group XXXVI] A resilient cylindrical pin, formed from a blank has tongues 2 which are wider at their fixed ends than their free ends. Ribs or grooves 6 may be provided to strengthen the tongues. In a modification, the tongues have curvilinear instead of straight sides.
Patent GB-305305-A (GB)
Title: Improvements in animal traps
IPC: A01M23/26
Filed: 1927-11-19
Abstract: 305,305. Collins, A., Collins, A., and Collins, B. A., (trading as Collins & Sons, J.). Nov. 19, 1927. Animal traps. - An animal trap of the type in which pivoted jaws C are closed on each other by a bow spring A has the forward free ends E, E, of the spring welded together at F The ends thus welded together pass through a hole in a bent-up end H of the baseplate J and fit between rearwardly bent flanges N on the bracket K in which the jaws are pivoted at one side. The spring can be detached by depressing the loop B below the lower ends M of the jaws, and then taking the jaws out.
Patent GB-383059-A (GB)
Title: Improvements in and relating to radio course finding systems for aircraft
IPC: G01S19/48
Filed: 1931-11-10
Abstract: 383,059. Wireless signalling. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Kline, H. W. ; 1430, Garner Avenue, Schenectady, New York, U.S.A.) Nov. 10, 1931, No. 31168. Convention date, Nov. 21, 1930. [Class 40 (v).] Relates to course -indicating systems for aeroplanes &c., of the kind in which a wireless beacon transmits a carrier-wave modulated with .a distinctive note on each side of a median line representing the course. According to the invention, the received signals, after rectification, are fed in series to the coils 14 of two selective relays 5 tuned to the two distinctive modulation frequencies. Each relay, Fig. 2, consists of a reed 7 placed between two electromagnets 10, 11, the polepieces of which are offset to prevent undesirable coupling. The coils 14 energize the magnets 10 whilst the coils 13 of the magnets 11 are inserted in the grid-filament circuits of a pair of amplifying valves 6. The relative strengths of the received modulation frequencies are indicated in a meter 4 shunted across the anode circuits of the valves 6, and show whether the pilot is keeping to his course or is flying to right or left of it. A meter 19 is provided to adjust the intensity of the received signals and to facilitate accurate calibration of the indicator 4. The valves 6 may be replaced by a bridge arrangement of dry-contact rectifiers, and a reversing-switch may be used according to whether the craft is approaching or leaving the beacon station. Reference has been directed by the Comptroller to Specification 335,967, [Class 40 (v), Wireless signalling &c.].
Patent GB-1512029-A (GB)
Title: Formation of thin layer patterns on a substrate
IPC: G03F7/40
Filed: 1975-07-25
Abstract: 1512029 Forming thin layer patterns PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 25 July 1975 [30 July 1974] 31185/75 Heading B2E In a method for forming a thin layer pattern on a substrate e.g. for making integrated electronic circuits, in which a substrate is provided with a layer of supporting material, a photolacquer layer masking selected areas and a layer of the thin layer material then photolacquer and overlying areas of thin layer material are removed to leave the desired pattern, the supporting material is a material is such that after heating it has poor adhesion with the photolacquer layer, and the layered structure is subjected to a heating step to effect such poor adhesion prior to the step of removing the photolacquere. Suitable supporting layers are of aluminium applied by vapour deposition or cathode sputtering, or silica provided on a silicon substrate by surface oxidation. The photolacquer layer is provided by a conventional photolithographic method. The thin layer material may be a metal e.g. aluminium titanium, an oxide or nitride of silicon, a magnetic material such as nickel-iron or an alloy, and may be applied by cathode sputtering. Removal of the photolacquer and overlying thin layer areas is effected with a solvent optionally assisted by ultrasonic treatment. The heating step is suitably from 100- 200‹C for 30 minutes. The method can be used to form further layers e.g. of silica, aluminium and nickel-iron in selected areas.
Patent GB-865714-A (GB)
Title: Improvements in and relating to foundry cores
Inventor: TURNBULL JOHN STRATTON
IPC: B22C9/10
Filed: 1956-10-12
Abstract: 865,714. Making cores. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 31, 1957 [Oct. 12, 1956], No. 31191/56. Class 83 (1). A foundry-core is made by shaping, on a former, a shell or part-shell 2 of layers of glassfibre cloth impregnated with a polyester resin cured to a solid state, providing on the interor of the shell a thin film of parting-medium and a coating of ceramic material, building thereon a number of layers 4 of ceramic to the requisite strength, and finally detaching the shell. The interior of the core may be filled with a reinforcement 5, e.g. coarse-refractory bound with ethylsilicate, sodium-silicate, phosphate &c. Specification 722,816 is referred to.
Patent GB-1127719-A (GB)
Title: Gas turbine engine
Inventor: PALFREYMAN JACK
IPC: F01D5/18
Filed: 1967-07-06
Abstract: 1,127,719. Gas turbine engines. ROLLS ROYCE Ltd. July 6, 1967, No.31255/67. Addition to 1,119,774. Heading F1T. The invention described in the parent Specification in which hollow pivoted guide vanes are supplied internally with cooling air in a direction towards their leading edges, in modified by supplying the cooling air into the vanes in directions towards both the leading edges and the trailing edges thereof.
Patent GB-1502971-A (GB)
Title: Pneumatic shock absorber for suspension of cars and/or similar vehicles
IPC: F16F9/50
Filed: 1975-07-25
Abstract: 1502971 Pneumatic shock absorbers H O DURAN 25 July 1975 [1 Aug 1974] 31282/75 Heading F2S In a pneumatic shock absorber comprising a cylinder 1, a rod 6 carrying a piston 2 which divides the cylinder into two chambers 14, 15, a gas inlet valve 16 communicating with one of the chambers, and a conduit 18 passing through the piston from one chamber to the other; the restriction to flow afforded by the conduit is adjusted by interchanging restrictor members 19, and flow from chamber 15 to chamber 14 is controlled by a valve comprising passages (peripheral notches) 3a in a ring 3 and a resilient one-way valve member 4.
Patent GB-473318-A (GB)
Title: An improved method for preserving a perishable food product and a wrapping material for use in such method
IPC: B65D81/28
Filed: 1936-11-16
Abstract: Perishable foodstuffs from which moisture is given off, such as bread and other baking products, are preserved by enclosing in paper or other wrapping material in which is incorporated a chemical compound that liberates germicidal gas in the presence of the moisture.  The chemical compound may be one which slowly liberates free chlorine, especially in contact with damp air, such as sodium, potassium and calcium hypochlorites and chloramine-T and other organic compounds of the same type such as dichloramine-T.  The wrapping material may be impregnated with a solution and the solvent allowed to evaporate or otherwise removed, e.g. paper is impregnated with a solution containing 0,5 or one per cent by weight of dichloramine-T in carbon tetrachloride or other organic solvent.  Aqueous solutions containing less than 5 per cent of chloramine-T do not impart satisfactory germicidal power to unwaxed paper for wrapping bread but lower concentrations can be used when common salt is added to the solution, e.g. a solution containing down to 0,5 per cent of chloramine-T and 10 per cent of common salt may be used.  If the wrapping material is waxed the chemical compound may be incorporated in the wax used, e.g. 3-5 per cent of dichloramine-T may be added to paraffin used for waxing.  Where more than one wrapping is employed the impregnated material is arranged next to the foodstuff.
Patent GB-655868-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B39/02
Filed: 1948-12-03
Abstract: 655,868. Refrigerating. ELECTROLUX, Ltd. Dec. 3, 1948, No. 31340. Convention date, Dec. 15, 1947. [Class 29] In an absorption refrigerating system of the continuous cycle inert gas type comprising a high temperature evaporator 11 and low temperature coil evaporators 15, 17 all connected for series flow of liquid refrigerant, and at different levels inert gas flows from the absorber by a pipe 18 and passes through the evaporators 15, 17 in parallel to a pipe 16 and then flows through the evaporator 11, the inert gas connections to the evaporators 15, 17 lying within the height of the evaporator system. To ensure equal flow of gas through evaporators 15, 17 a throttle member 22 is inserted in the evaporator 15. Alternatively the throttle member may be located in a part 19 of the pipe 18 or in the pipe 16. The inert gas may pass in counterflow to the liquid refrigerant in both the evaporators 15, 17. The throttling of the inert gas flow can be effected by varying the lengths or diameters of the evaporators 15, 17. Specifications 335,199, [Class 29], and 548,856 are referred to.
Patent GB-379148-A (GB)
Title: Improvements in and relating to controlling means for electrically driven vehicles
IPC: B60L15/20
Filed: 1931-11-12
Abstract: 379,148. Master control of motors. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A. -(Assignees of Allgemeine Elektricitõts Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Nov. 12, 1931, No. 31380. Convention date, Nov. 12, 1930. [Class 38 (iii).] The control drum l of a trackless trollev-car is driven by a pilot motor under the control of a " follow up" switch d, one part of which is carried by the drum and the other by a shaft w operated in reverse directions by a driving pedal a1 and a braking pedal a2. The motor m may be supplied from a battery carried on the car. Also the drive from the motor to the drum l may be through an electromagnetic clutch energized from the trolley wires, so that upon failure of supply the clutch is disengaged and the drum is returned to the "off" or to the " braking " position by a spring.
Patent GB-845283-A (GB)
Title: Methylene-hydrophenanthrenes and process for their manufacture
IPC: C07C51/377
Filed: 1956-10-15
Abstract: The invention comprises 2-methylene-hydrophenanthrenes, saturated in the ring system or containing a double bond involving carbon atom 8a, and of the general formula:  <FORM:0845283/IV(b)/1> (wherein n is 2 or 3, R1 represents a free or functionally converted hydroxy or oxo group, and R2 represents a nitrile group or the residue COX, wherein X represents a free or functionally converted hydroxy group or a methyl group), and a process for the manufacture of 2-methylenehydrophenanthrenes wherein a 2-methyl-hydrophenanthrene, containing in the 2 -position a free or substituted amino group (especially a quaternary ammonium group) and in the 1-position a grouping-(CH2)n-R2 as defined above, is subjected to the action of an alkali and /or heat to split off the said 2-substituent with the formation of a semi-cyclic double bond, whereafter, if desired, the 1-substituent is extended by one or two carbon atoms by known methods for extending a paraffinic hydrocarbon chain.  This extension may be effected by the Arndt-Eistert method, or by reducing a -COOH group to -CH2OH (e.g. with LiA1H4) and reacting a reactive ester (e.g. halide or tosylate) of the resulting carbinol with KCN.  When R2 is -COOH it may be converted to -CO-CH3 by reacting the acid chloride thereof with cadmium dimethyl or lithium methyl, whilst -CN may be converted to -CO-CH3 by the action of a methyl magnesium halide.  The products are useful in steroid synthesis, e.g. as follows:-a compound of the general formula above which contains a D 8 double bond and in which n is 3, R1 is an oxo group and R2 is -COCH3 is subjected to epoxylation of the semi-cyclic double bond, the resulting epoxide is split with a hydrohalic acid to form a halohydrin of the partial formula: <FORM:0845283/IV(b)/2> which, before or after oxidation of -CH2OH to -COOH and esterification of the latter, is subjected to ring closure by intramolecular alkylation to form an 18-oxygenated steroid, after which an 11-hydroxy group may be introduced (e.g. by a microbiological method) and then lactonized with the carboxyl group, yielding, for example, the (18-->11)-lactone of D 4-3:20-dioxo-11 b -hydroxypregnene-18-acid.  2-Methyl-hydrophenanthrenes, as defined above for use as starting materials, are obtainable by Beckmann rearrangement of oximes of 17-oxosteriods or 17 a -oxo-D-homosteriods and hydrolysis of the resulting lactams.
Patent GB-174236-A (GB)
Title: Improvements in pens
IPC: B43K1/01
Filed: 1920-11-06
Abstract: 174,236. Rishworth, F. W., and Rishworth, P. J. Nov. 6, 1920. No Patent granted (Sealing fee not paid). Penholders; reservoir tubes.-A penholder of the type comprising a tubular clip provided with an internal nib-holding spring tube or tongue, and with an integral extension serving as an inkholding device adjacent to the nib, comprises a tubular part b, Fig. 1, formed from a rectangular blank and an integral tongue c overlying the nib h, the end f of the tongue c being tapered and rounded and the centre g being raised to form a dome-shaped hollow chamber of approximately semicircular central transverse section, as shown in Fig 4.
Patent GB-1298033-A (GB)
Title: Electromagnetic radiation detection device, and sensing element therefor
IPC: G01J5/34
Filed: 1970-06-30
Abstract: 1298033 Ferroelectric radiation detectors CARBORUNDUM CO 30 June 1970 [7 July 1969] 31484/70 Heading H1K A radiation detector element insensitive to piezoelectric disturbance comprises a body of ferroelectric material containing at least one group of alternately oppositely polarized portions electrically connected in series. There may be several such groups in one body providing response to different light sources and several such bodies arranged side by side in a common housing Preferred materials are those with a single ferroelectric axis, such as triglycine sulphate and fluorberylate and mixtures thereof, barium and strontium niobates and mixtures thereof and sodium potassium tartrate tetrahydrate. A typical element 0À4 mm. thick has 13 pairs of parallel 1 Á thick gold stripes spaced 0À92 mm. centre to centre vapour deposited simultaneously or in two separate operations on its opposed faces via a wire mask. Polarization perpendicular to the faces is effected by connecting the pairs in two interleaving oppositely poled groups to a source providing a direct voltage gradient of 2400 volts/cm, for 10 minutes. For this purpose wires are attached ultrasonically or by cement containing grains of silver. After polarization the wires are reconnected to give the series connection and the element given a coating of infra-red absorptive carbon black or ultra-violet absorptive petroleum jelly. The element is then stuck to a polyethylene terephthalate sheet, peripherally supported by a brass annulus accommodating an associated preamplifier in an evacuable housing having a window of germanium, silicon, diamond, potassium bromide or calcium fluoride. In an alternative arrangement the element and an associated reference element are maintained within 0À1‹ C. of a crystallographic transition temperature in the manner described in Specification 1,289,811. Where several groups are used in a common body one or more unconnected isolating portions oppositely polarized to adjacent portions are located between the groups.
Patent GB-637206-A (GB)
Title: Improvements in or relating to machines for centrifugal casting
IPC: B22D13/12
Filed: 1947-11-28
Abstract: 637,206. Centrifugal casting-machines. WOOD, D. H. Nov. 28, 1947, No. 31500. [Class 83 (i)] Metal-pouring apparatus.-A centrifugal casting-machine has an interchangeable mould 10 which can be driven at any speed, up to a predetermined maximum, by a constant-speed motor 43 through an electro-dynamic clutch 42. The field windings of the clutch are supplied with manually-controlled continuous current, which may be derived from a rectifier and the motor may be driven by alternating current. The clutch may be connected by a driving belt or belts 16 to a pulley on the shaft 15 of rollers 13 which, with rollers 12, support the mould. This can be held down by a spring-pressed roller 17, Fig. 2, on a crank-lever 19, the arm 24 of which is adjustably connected to a lever 23 operated by a fluid-pressure cylinder 22. Unintentional lifting of the roller 17 is prevented by a cam 27 operated by a spring 29 to engage an arm 28 of the lever 23 and withdrawn, when required, by a cord 31 and hand lever 30. The rotation of the mould may be stopped by a treadle-operated brake 32. The funnel 35, through which a measured quantity of metal is poured into the mould, is carried by a frame pivoted at 36 so that it can be swung aside. This frame carries a guard 37 and another guard 38 is pivoted at 39. The mould may be of metal with a thin lining of refractory material sprayed on the preheated mould, or of sand in a metal flask. The funnel may have a nozzle designed to give a desired rate of flow and be lined with sand. The Provisional Specification states that an electrical brake may be incorporated.