baber/WOPTO huggingface dataset:
Patent GB-254907-A (GB)
Title: Improvements in and relating to collars for personal wear
IPC: A41B3/00
Filed: 1925-09-10
Abstract: 254,907. Banks, C. E., Sept. 10, 1925. Collars, linen and like. -A shelf F is made in the neckband so that the necktie is kept up to the turnover by resting on the shelf, the collar having an unbroken surface between the shelf and the turnover. In the contruction shown in Fig. 2, a depression E is made in the neckband of the collar by cuting away the coarse layers 12, 13 leaving only the facing layers 10, 11. In another construction only one of the coarse layers is removed. In other constructions the shelf or ridge is made by a thick line of stitching or by a thread or packing inserted and sewn into one of the layers.
Patent GB-781456-A (GB)
Title: A new hydrazine compound and a process for making it
IPC: C07D237/22
Filed: 1953-08-17
Abstract: The invention comprises 3 : 6-dihydrazinopyridazine and salts thereof, together with a process for their preparation by reacting 3 : 6-dimercaptopyridazine with hydrazine and, if desired, converting the product into a salt.  The products are pharmaceutically useful for reducing the blood pressure.  In an example, 3 : 6-dimercaptopyridazine is refluxed with hydrazine hydrate in ethanol, and the product is converted to its acid sulphate or its mononitrate. Other acids specified for the formation of salts are hydrohalic acids, phosphoric, thiocyanic, acetic, propionic, oxalic, malonic and succinic acids, hydroxyethane-, benzene- and toluene-sulphonic acids, and therapeutically active acids.  Starting material.  3 : 6-Dimercaptopyridazine is prepared by heating 3 : 6-dihydroxypyridazine with POCl3 and reacting the resulting 3 : 6-dichlorpyridazine with potassium sulphide (e.g. by heating in a bomb tube in ethanolic solution).
Patent GB-452235-A (GB)
Title: Improvements in or relating to methods of and apparatus for ascertaining location or distance by radio-electric signalling
IPC: G01S1/30
Filed: 1935-08-12
Abstract: 452,235. Wireless signalling. HONORE, E. A. H., 21, Rue Descartes, Paris. Aug. 12, 1935, No. 22685. Convention date, Aug. 11, 1934. [Class 40 (v)] The navigator of a moving vessel ascertains his location by measuring the phase-displacement of a plurality of radiated signals modulated by a single low frequency. This gives him the difference of his distance from two aerials spaced apart by a known amount. The transmitter comprises three aerials A1, A2, A3, Fig. 3, of which the aerial A1 radiates a pure wave of frequency f, the aerial A2 a pure wave of frequency (f + n), and the aerial A3 a wave of different frequency f modulated with the same low frequency n. The generator E1 supplies the frequency f to the aerial A1 and also to two fixed coils B1, B2, whilst a coil B3 rotating at a speed of n times a second supplies a frequency f + n through an amplifier E2 to the aerial A2. The aerial A3 is supplied direct by a generator E3 with a frequency f1, which is modulated by a coil B1 synchronized with the coil B3. On the moving craft, a receiver R, Fig. 2, tuned to the frequency f, detects the beat note n from the aerials A1, A2, whilst the receiver R1 is tuned to the frequency f1 and detects the same low-frequency note from the aerial A3. The two outputs are fed to a phasemeter P1, which indicates the difference in the distance of the craft from the transmitter A, and the transmitter A1. in wavelengths. This is shown by the phase-difference between the rectified currents. Fig. 7 shows an alternative transmitting arrangement in which the aerials A5, A6 each emit the same carrierfrequency f modulated by different note frequencies F5, F6, whilst the aerial A4 radiates a pure wave f + n derived through modulators E7, E8 from the common source E. If the aerials are mounted one above the other, the phase-difference will indicate the elevation say of an aeroplane.
Patent GB-502070-A (GB)
Title: Improvements relating to rotary engines
IPC: F01C5/08
Filed: 1938-07-30
Abstract: 502,070. Flexible - tube engines. LYON, H. L. July 30,1938, No. 22770. [Class 110 (ii)] A rotor 9 carries a flexible tube 18 in a groove 20 and a wheel 33, in vertically-slidable bearing boxes 5, presses on the tube. The ends of the tube 18 are secured to nipples 14, 15 which communicate with bores, 11, 12 in the hollow shaft 8. Inlet and exhaust pipes 28, 29, for the working fluid, which may be steam, compressed air, or water under pressure, are coupled to the bores. The fluid presses against the constriction 41 and causes the rotors 9, 33 to rotate. Weights 48 may be placed in a pan 47, to add to the weight of the wheel 33. Power may be taken off either shafts 8, 34. The engine is reversed by reversing the direction of fluid flow. In a modification, the rotor shafts are arranged in a horizontal plane, the rotors being geared together. End screws are rotated to adjust the pressure of the wheel 33 on the tube. A cam on the end of the shaft 8 causes an inlet valve to be closed while the bends in the tube (leading to and from the hollow shaft) are being pressed upon by the wheel 33.
Patent GB-249020-A (GB)
Title: Improvements in and connected with methods of and means for the telegraphic transmission of pictures, diagrams and other impressions
IPC: H04N1/36
Filed: 1924-12-11
Abstract: 249,020. Baker, T. Thorne-. Dec. 11, 1924. Copying-telegraphs.-To maintain the picturecarrying drums at the transmitting and receiving stations in synchronism a stop associated with each drum is periodically released by the closure of a circuit by a simple pendulum device at the same station. Figs. 2 and 3 show transmitting and receiving arrangements respectively, the two pendulums being set to beat in synchronism, the transmission being effected by the movement of a stylus over conducting and non-conducting elements forming the picture and the reception by the corresponding movement of a stylus over a paper adapted to be marked electrochemically. Alternatively the optical methods described in Specification 249,021 may be employed. In each case the drum h carries an arm k adapted to be engaged at each revolution by a stop l carried bv the armature m of a release magnet n of which the circuit is closed periodically at f, g by the pendulum a, b. The pendulum is so designed that a single initial impulse is sufficient to maintain its oscillations during the whole period required for the transmission of a picture. For wireless transmission the circuit of the transmitting stylus o, Fig. 2, is connected across a condenser r in the grid circuit of a transmitting valve v, and the receiving stylus o, Fig. 3, is arranged in the plate circuit of the last amplifying valve v. The movements of the drums h and of the styli o may be effected as described in Specification 248,837.
Patent GB-1018272-A (GB)
Title: Improvements relating to electrical analogue to digital converters
Inventor: SEABROOK JOHN GRAHAM
IPC: H03M1/00
Filed: 1961-06-23
Abstract: 1,018,272. Electric selective signalling systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 21, 1962 [June 23, 1961], No. 22839/61. Heading G4H. A voltage digitizing system of the type in which an unknown voltage is first converted into a duration significant signal, by comparison with a linear time base, which is then digitized by counting clock-pulses, is characterized in that the system includes two comparators associated with positive-going and negative-going time base generators in order to be able to digitize unknown voltages of either polarity. As described, an unknown voltage is sampled, Fig. 1, stored on a capacitor and applied in dependance upon its sign to one of two comparators receiving positive and negative time bases. This produces a pulse of a corresponding duration which controls the flow of clock-pulses to a counter. If the sampled voltage is negative a " complement clamp" is also set so that when the counter is read out, by gates and appropriate delays, the serial-mode output is complemented and a sign pulse is inserted.
Patent GB-1026033-A (GB)
Title: Process for the production of thermostable polymers derived from vinylidene chloride
Inventor: STEPHAN RUDOLPH
IPC: C08F14/08
Filed: 1964-06-02
Abstract: Thermostable polymers of vinylidene chloride are prepared by carrying out the polymerization in the presence of a monomer-soluble epoxide having at least 8 carbon atoms in the molecule.  Polymerization may be effected in solution, emulsion or suspension, and the vinylidene chloride may be copolymerized with vinyl halides, vinyl alkanoates, vinyl crotonate, vinyl benzoate, unsaturated acids and the esters and nitriles thereof, vinyl ethers, vinyl and isopropenyl ketones, olefins, diolefins and vinyl aromatic compounds.  The epoxides may be 1,2-or 1,3-epoxides and may be monomeric or polymeric, many suitable epoxides being listed. Examples describe the polymerization in aqueous media containing methyl cellulose of vinylidene chloride in the presence of (6) a diphenylol propane/epichlorhydrin condensate and (7) 2-ethylhexyl glycidyl ether, phenyl glycidyl ether, ethylene glycol diglycidyl ether or styrene oxide; of vinylidene chloride with (1) butyl acrylate in the presence of a diphenylol propane/epichlorhydrin condensate, (2) allyl acetate, (4) methyl acrylate or (8) vinyl acetate in the presence of epoxidized soya bean oil, or with (3) acrylamide in the presence of epoxidized polybutadiene, using azodiisobutyronitrile as catalyst; and the copolymerization of vinylidene chloride and methyl acrylate (5) in aqueous medium in the presence of a diphenylol propane/epichlorhydrin condensate, sodium paraffin sulphonate, sodium phosphate, ammonium persulphate and sodium dithionate.
Patent GB-270549-A (GB)
Title: An improved rest or support for use in drying freshly painted golf balls
IPC: A63B45/02
Filed: 1926-09-17
Abstract: 270,549. Grave, T., (Grave, J. C.). Sept. 17, 1926. Coating, work-holders for.-A support for drying freshly painted golf balls comprises a base a and upright pins b fixed in holes therein, in groups of three equally spaced pins. The pins may be removable and adaptable for insertion into the holes, in which case they may have shoulders as shown in Fig. 3 or may be tapered. The base may be of sheet brass, wood &c. and may be provided with ornamental ends or handles e, or may have legs or other means for raising it.
Patent GB-238728-A (GB)
Title: Improvements in forks for velocipedes and the like
IPC: B62K21/02
Filed: 1924-09-30
Abstract: 238,728. Lintine, D. F., and Jacob, S. Sept. 30, 1924. Forks, more particularly applicable to children's bicycles and tricycles, are formed from two lengths 1, 2 of strip or sheet metal, connected together by a bridge-member 7 and bent or cranked inwards as at 6. In the case of a front fork as shown, the upper parallel portions of the strips 1, 2 are separated by a distancepiece 10 and are passed through the tubular head 12, their upper ends being bolted on either side of a depending lug on the handle-bar. In order to prevent the handle-bar from turning about the bolt, the lower edge of the depending lug engages a flanged disc closing the upper end of the head 12, this disc being slotted so as to thread on to the strips 1, 2. The lower ends of the parallel parts of the strips 1. 2 non-rotatably engage a rectangular aperture 14 in a bearing washer 13 co-operating with a bearing ring 15. The washer 13 and ring 15 and the disc at the upper end of the head 12 may be replaced by ball bearings. In the case of the horizontal and inclined back forks, the strips 1, 2 are bolted to lugs on the seat tube of the frame.
Patent GB-1029720-A (GB)
Title: Improvements relating to protection devices for high-voltage lines
Inventor: SCHUMM ERWIN
IPC: H02H7/26
Filed: 1964-06-04
Abstract: 1,029,720. Protective arrangements. SIEMENS & HALSKE A.G. June 4, 1964, No. 23091/64. Addition to 949,627. Heading H2K. The protective arrangement of the parent Specification is modified so that the pulses produced at each end of the protected line are derived from either of two A.C. reference voltages dependent on different components of the currents at that end. In the arrangement disclosed, certain items of the arrangement of the parent Specification are duplicated and various relays are provided so that the arrangement may compare the phase relationship between pulses produced by voltages dependent on the negative phase-sequence current components at each end or the zero phase-sequence current components at each end.
Patent GB-1109214-A (GB)
Title: Apparatus for forming, coating and collecting filaments
IPC: C03C25/20
Filed: 1966-05-24
Abstract: 1,109,214. Filament coating apparatus; liquor circulatory system. OWENS-CORNING FIBERGLAS CORPORATION. 24 May, 1966 [25 May, 1965], No. 23163/66. Heading D1L. Liquid coating apparatus comprises a local liquid supply tank 22, means transferring liquid from said tank 22 to the material to be coated e.g. freshly spun filaments, a main supply tank 151, and a system circulating liquid between said tanks including a supply line to tank 22. a return line to tank 151 and means responsive to the level of liquid in the return line for maintaining said return line substantially filled with liquid. In a particular embodiment, the circulatory system includes a surge reservoir 161 in the return line, a valve 164 in the return line being actuated by means of a switch responsive to a float in the surge reservoir 161. In a preferred embodiment, the application means comprises an endless belt passing round a partially immersed roller. An adjustable overflow is provided in the local supply tank 22 to maintain constant level therein. Various electrical circuits are described for the control of the valve in response to the float. A metering bar is provided for controlling the thickness of coating on the application belt.
Patent GB-428427-A (GB)
Title: Improvements in method and apparatus for grinding valve seats
IPC: B24B15/00
Filed: 1934-08-11
Abstract: 428,427. Grinding valve - - seatings. VAN NORMAN MACHINE TOOL CO., 160, Wilbraham Avenue, Springfield, Massachusetts, U.S.A. Aug. 11, 1934, No. 23268. Convention date, Feb. 10. [Class 60] A valve seating 12 of an internal-combustion engine is ground by means of a grinding-wheel 30 to which an eccentric load is applied. The wheel 30 is mounted on a a sleeve 25 rotatable on an arbor 15 split at 16 and secured in the valve stem guide 13 by a rod 17 and a screw cap 19, and the sleeve carries, on a bearing surface 35 thereon, a freely rotatable disc 43 formed with two compartments 44, 45, one being filled with lead 47 to provide the eccentric load. On a part 36 of the sleeve are keyed a washer 38 and a leather driving member 39 formed with peripheral notches 50, the member being held in position by a fibre washer 41 and a nut 42. The notches 50 are engaged by teeth 53 on a driving socket 52 retained in position by a guard 56 and provided with a stud 54 adapted to be driven by an electric drill, and between the nut 42 and the upper end of the socket is a spring 55 ; this arrangement allows of tilting of the driving means and variation of the pressure of the wheel 30 on the valve seating. In operation, the disc 43 rotates through friction with the sleeve 25, at substantially the same speed as the grinding-wheel 30, but owing to its inertia does not follow the slight speed variations of the wheel, whereby the direction of the eccentric load changes ; the arrangement described is stated to eliminate chatter marks.
Patent GB-902019-A (GB)
Title: Catalytic process
IPC: B01J27/18
Filed: 1959-07-07
Abstract: Lithium phosphate, for use as a catalyst in the isomerization of an alkylene oxide to an unsaturated alcohol, is prepared by precipitating lithium phosphate in the presence of an alkali metal hydroxide and then leaching the precipitate with water to remove all but 0,05 to 1% by weight of the alkali metal hydroxide based on the weight of lithium phosphate.  The lithium phosphate is precipitated by mixing a solution of lithium nitrate, hydroxide, acetate, formate or borate, with a solution of sodium or potassium phosphate or of phosphoric acid, the alkali metal hydroxide, e.g. sodium, potassium or lithium hydroxide, being present in one or other or both solutions.  The precipitate is then washed several times with hot water until it contains 0,05 to 1% by weight of the alkali metal hydroxide.  It is used as a catalyst as prepared or mixed with one-tenth to an equal weight of activated carbon or diatomaceous earth.  Examples are given.  Specification 603,815 is referred to.ALSO:Alkylene oxides containing 3 to 5 carbon atoms are converted to the corresponding alcohols by passing the alkylene oxide in the gaseous state at a temperature of 250 DEG C. to 350 DEG C. through a bed of lithium phosphate catalyst, the lithium phosphate having been prepared in the presence of an alkali metal hydroxide, all but 0.05 to 1% by weight based on the lithium phosphate of the alkali metal hydroxide subsequently having been removed from the lithium phosphate by leaching.  The preparation of allyl alcohol from propylene oxide is particularly described.  Specification 603,815 is referred to.
Patent GB-1488261-A (GB)
Title: Electrophonic musical instrument
IPC: G10H1/32
Filed: 1975-03-27
Abstract: 1488261 Electrophonic musical instruments Y SUZUKI 27 March 1975 23379/74 Heading G5J An electrophonic musical instrument comprises a plurality of keys A<SP>1</SP> to Y<SP>1</SP> arranged as on a known musical instrument, e.g. a saxophone, the keys actuating movable contact arms on switches A to Y on panels 120, 126 to connect to contacts on internal panels 119, 125 when actuated and to contacts on external panels 118, 127 when not actuated, to connect the appropriate tone generator to amplifier 113, the keys A<SP>1</SP> to U<SP>1</SP> selecting the note and the keys V<SP>1</SP> to Y<SP>1</SP> the desired octave. The interrupting switch 116 and frequency-shifting resistor 117 can be breath-controlled by a mouthpiece corresponding to the reed mouthpiece of a wind instrument, the variable resistor 117 being responsive to upward and downward movements of the users jaw. The tone generators may comprise transistorized or integrated circuits, a separate generator being used for each tone.
Patent GB-1082929-A (GB)
Title: Improvements in or relating to shear machines and the like
IPC: B23D33/08
Filed: 1965-06-02
Abstract: 1,082,929. Clamping work. PACIFIC PRESS & SHEAR CORP. June 2, 1965 [June 8, 1964], No. 23504/65. Heading B3W. A shear comprises a frame 11, a work-supporting table 3, a fixed cutter 7 and a reciprocating cutter 13 driven by hydraulic motors 12. The work is clamped against the table 3 by a hold-down 1 which comprises an inflatable tube 17 secured to a back-up member 16. The back-up member may be fixed to the machine frame in which case the tube 17 is inflated to clamp the work against the table. Alternatively the back-up member may be slidably mounted in its own ways and operated to move in advance of the upper knife, or it may be fixed to the ram of the machine with the hold-down tube carried thereby in advance of the upper knife to effect prior engagement with the work. When the back-up member is reciprocably mounted the tube is permanently inflated, or a solid strip of resilient material may be used.
Patent GB-831938-A (GB)
Title: Reclining chairs employing moveable back and leg rests
IPC: A47C1/034
Filed: 1958-07-22
Abstract: 831,938. Seats. GLASS, H. P. July 22, 1958 [Feb. 26, 1958], No. 23506/58 Addition to 811,286. Class 52(2) In an improvement in or modification of the reclining chair of the parent Specification a chair 30 having a back and seat unit 15, 16 and leg rest 17 pivoted between arm rests 31 at 20, 33 respectively has the back and leg rest connected by endless belts arranged for movement within the arm rests 31.
Patent GB-371261-A (GB)
Title: Improvements in playing balls
IPC: F16K15/20
Filed: 1931-08-22
Abstract: 371,261. Inflating-valves. MICHELIN ET CIE, Clermont Ferrand, Puy-de-Dome, France. Aug. 22, 1931, No. 23667. Convention date, Aug. 22, 1930. [Class 135.] A non-return inflation valve D for a football &c. is enclosed -in a rubber sheath 11 secured in the wall of the ball by flanges 12, 12<1>, the flange 12 having a central opening 13 of frustroconical shape for inflation purposes. A ring 14 adjacent a restriction 5 in the valve body secures the valve body to the sheath. The valve comprises a spring-pressed valve ball 7 within a lower ported portion and a screwed plug 9 in the upper portion bearing on a seating 10. To inflate the ball the plug 9 is removed through the orifice 13 and the inflation is effected by inserting the end of a pump in the orifice.
Patent GB-443104-A (GB)
Title: New triarylmethane dyestuffs
IPC: C09B11/20
Filed: 1934-08-16
Abstract: Triarylmethane dyestuffs dyeing animal fibres from an acid bath blue to green blue shades are prepared by reacting a triarylmethane dyestuff derived from a benzaldehyde having a replaceable para substituent with a p-aminophenylethyl ether substituted by OH, OCH3 or OC2H5 in the b  position of the ethyl goup.  In examples: (1) a triarylmethane dyestuff obtained from benzylethylanilinesulphonic acid and p-chlorbenzaldehyde is condensed with p-aminophenyl-b -ethoxyethylether, p-amino-phenyl-b -methoxyethylether and p-amino-phenyl-b -hydroxyethylether; (2) the same triarylmethane dyestuff used as starting material in example 1, with a sulphonic group in place of the chlorine (Light Green SF yellowish) is condensed with p-aminophenyl-b -ethoxyethylether and p-aminophenyl-b -ethoxyethylether; (3) the triarylmethane dyestuff derived from benzylethyl-m-toluidine and p-chlorbenzaldehyde is condensed with p-aminophenyl-b -ethoxyethylether.  p - Aminophenyl - b  - ethoxyethylether is prepared by reducing p-nitrophenyl-b -ethoxyethylether by means of iron and hydrochloric acid in the presence of alcohol.  p - Aminophenyl - b  - methoxy (and hydroxy) ethylethers are prepared in a similar manner by reduction of the corresponding nitrocompounds.  p-Nitrophenyl-b -ethoxy (and methoxy) ethylethers are prepared by condensing sodium p-nitrophenate with b -chlordiethylether and b -chlorethylmethylether respectively. Specification 237,096, [Class 2 (iii)], is referred to.
Patent GB-790252-A (GB)
Title: Apparatus for measuring, indicating or controlling the concentration of a solution of an electrolyte
IPC: G01N27/04
Filed: 1955-08-17
Abstract: 790,252. Automatic concentration control systems. AMERICAN CHEMICAL PAINT CO. Aug. 17, 1955 [Sept. 29, 1954], No. 23711/55. Class 38 (4). An alternating voltage dependent on the concentration of an electrolyte, and derived from the association of a conductance cell with an A.C. source, is rectified and compared with a standard direct voltage in a potentiometer circuit. In Fig. 2, a constant voltage A.C. supply, derived from a source P through a combination of saturable and unsaturable transformers 10, 11, is applied to a potentiometer 14 in series with a conductance cell 2 in a tank 1 containing an electrolyte the concentration of which is to be maintained constant. The voltage from potentiometer 14, which is thus dependent on the concentration of the electrolyte, is rectified at 16, filtered at 20 and applied in opposition to a portion of the voltage derived through a potentiometer 25 from a standard D.C. source 26. The resultant voltage is applied through a commutator or vibrator type inverter 30 and A.C. amplifier 31 to run a two-phase servomotor 32 in the direction necessary to correct the concentration by regulating a pump or valve 8 controlling the supply of a chemical or concentrate from a reservoir 9 to tank 1. Follow-up is provided by servomotor 32 adjusting potentiometer 25. A resistor 13 is adjustable to compensate for different electrolyte temperatures. The arm of potentiometer 25 or servomotor 32 may operate an indicator or recorder. Specification 629,562, [Group II], is referred to.