baber/WOPTO huggingface dataset:
Patent GB-764724-A (GB)
Title: Torque sensor
IPC: G01L3/10
Filed: 1955-02-14
Abstract: 764,724. Torque measuring apparatus. BENDIX AVIATION CORPORATION. Feb. 14, 1955 [Feb. 18, 1954], No. 4337/55. Class 40 (1). A device for measuring the torque of a shaft comprises multiple air gaps at the shaft ends and electromagnetic means responsive to variation in said air gaps in accordance with torque. Each multiple air gap is an assembly comprising a component rigid with the near-by end of the shaft and a component extending from the further end of the shaft. In Fig. 1, an inner rotor 47 comprises a magnetic sleeve 48 integral with torque rings 49, 50 and secured only to shaft hub 44 whilst an outer rotor 34 comprises a non-magnetic sleeve 39 carrying torque rings 35, 36 and secured only to shaft hub 43 whereby hub 43 is related to complementary torque ring pairs 35, 49 having axial fingers 40, 51 to form multiple air gaps 105 (see Fig. 2) and hub 44 is related to complementary torque ring pairs 36, 50 similarly having axial fingers 7, 52 to form multiple air gaps 106. The surrounding stator 10 has a magnetic shell 12 and comprises A.C. fed primary coils 24, 24<SP>1</SP> and series-opposition secondary coils 25, 25<SP>1</SP> (see Fig. 5) and there are two magnetic circuits through half portions of magnetic shell 12 and rotor sleeve 48 and via complementary stator and rotor central flanges 15, 53 and when shaft 9 is under torsional strain such that each air gap 105 increases then each air gap 106 will decrease and the opposite changes in reluctance of the two magnetic circuits produces an increase in voltage from one secondary coil and a decreased voltage from the other and the nett output voltage indicated on meter 122 serves as a measure of torque on the gauge shaft 9. The Specification includes, Fig. 6 (not shown), a detailed drawing of the two magnetic circuits. A modification, Figs. 3 and 4 (not shown), comprises torque rings having radial finger laminations to provide the multiple air gaps.
Patent GB-879866-A (GB)
Title: An improved device for holding sheets of paper in registration for copying purposes
IPC: B41L3/02
Filed: 1959-02-09
Abstract: 879,866. Book-keeping devices. GRAHAM, D. B. Feb. 9, 1959 [Feb. 14, 1958], No. 4420/59. Class 16. Book-keeping sheets 7 and carbon sheets 11 have register slots 8 at one end for engagement with pins 3 on a support 1, and a record card 10 superposed on the sheets with one edge registered by a straight-edge 2 secured on the support 1, is clamped in registered position for manifolding by a loose spring clip 9. The pins 3 each comprise an internally screw-threaded sleeve with a head 3b, and a stud, also provided with a head 3a, screwed into the sleeve. A coil spring 6 between the support 1 and head 3b urges the pin so that the head 3a grips the sheets on the support. In a modification, a headed screw passes through a hole in the support 1 and has a wing nut thereon beneath the support. The undersurface of the support 1 is reinforced by cross ribs.
Patent GB-193663-A (GB)
Title: Improved method for deriving hydrazobenzol and homologues
IPC: C07C241/02
Filed: 1922-02-15
Abstract: 193,663. Dehn, F. B., (Lucke, H. J.). Feb. 15, 1922. Rotary batch-mixers. -An apparatus for use in the reduction of nitrobenzene to hydrazo benzene by means of zinc and caustic soda consists of a heat-insulated horizontal steel drum 1 mounted in trunnions 3, 7, the latter being hollow to permit escape of gases ; the bearings 5, 9, are preferably of the roller type. The interior of the drum is provided with radial shelves 11, which may be perforated, and which are provided with openfaced agitating members 12 extending inwards beyond them; the agitating members are preferably in staggered relation, to one another; the drum is also provided with a pyrometer &c. 13. 14, 15.
Patent GB-1219633-A (GB)
Title: Pyridine derivatives
Inventor: AYAD KARL
IPC: C07D213/77
Filed: 1968-01-29
Abstract: 1,219,633. Nitramino-pyridines. MONSANTO CHEMICALS Ltd. 13 Jan., 1969 [29 Jan., 1968], No. 4546/68. Heading C2C. [Also in Division A5] Novel nitraminopyridines of Formula I in which R is hydrogen or C 1-6  alkyl, R<SP>2</SP> is chlorine, bromine, C 1-6  alkyl or nitro and R<SP>3</SP> is chlorine, bromine or nitro but different from R<SP>2</SP>, and N-oxides and salts thereof, are prepared by reacting the corresponding aminopyridine with fuming nitric acid in the presence of sulphuric acid at a temperature below 15 C. When it is desired to substitute an -NO 2  group in the ring also, the reaction may comprise a second stage in which the temperature is raised to 60 to 100 C.
Patent GB-961434-A (GB)
Title: Dibasic acid imides
IPC: C07D207/448
Filed: 1960-02-10
Abstract: The invention comprises compounds of formula: <FORM:0961434/C1/1> wherein one of A or B is a hydrogen atom and the other is a hydrogen atom or methyl group and R is an alkyl or aralkyl group of 1 to 10 carbon atoms, specifically, N-n-butylmaleimide, N-benzylcitraconimide, N-n-propyl-maleimide, N-hexylmaleimide, N-octylmaleimide, and N-benzyl-maleimide. The compounds are prepared by heating a compound: <FORM:0961434/C1/2> with a solution of an alkali metal acetate in acetic anhydride at a temperature below 140 DEG C. Specification 948,730 is referred to.
Patent GB-152563-A (GB)
Title: A new or improved stand or floor protector for use with furniture
IPC: A47B91/12
Filed: 1920-02-17
Abstract: 152,563. Hadwin H. Feb. 17, 1920. Castor cups. - A support for the feet of furniture to protect the floor or carpet comprises a disk a of compressed fibre hollowed at b to position the furniture castor or foot.
Patent GB-897369-A (GB)
Title: Improvements relating to intelligence communicating systems
Inventor: ANTHONY MYRON L
IPC: G08C21/00
Filed: 1959-02-11
Abstract: 897,369. Writing-telegraphs. MERO, P. G. S. Feb. 11, 1959, No. 4781/59. Class 40 (1). In a writing-telegraph system the signal to control the engagement of the receiver stylus with the recording medium is derived from the sharp fall in impedance between the transmitter stylus and an electrically-conductive platen supporting the recording medium which occurs when the transmitter stylus is moved into contact with the recording medium. As shown, Fig. 2, inductors 25, 28 are adjusted, in accordance with the co-ordinate components of movement of the stylus, to vary the frequencies of corresponding generators, signals from which control motors to move the receiver stylus. The change of capacitance when the transmitting stylus touches the platen produces its effect by altering the amplitude or frequency of an A.C. signal. For example, the capacitance may be included in a bridge circuit which is balanced when the stylus is out of action, Fig. 3 (not shown), or in the frequency determining circuit of a signal generator, Fig. 5 (not shown), or may provide the coupling between two tuned circuits on the signal path, Fig. 6 (not shown). In another arrangement, Fig. 7, the stylus capacitance shown at 112 acts as a coupling between tuned circuits 104, 109 forming part of a transistor oscillator and may be such that oscillation takes place only when the stylus is in contact. The oscillatory signal may control the distant stylus as before or as an alternative a relay 128, in the circuit supplying the transistor, which is operated in the non- oscillatory condition and released when oscillations are generated may exercise the control. Specifications 677,177, 678,469 and 686,599 are referred to.
Patent GB-1325845-A (GB)
Title: Duel feed system for electrophoretic coating bath
IPC: C09D5/44
Filed: 1972-02-03
Abstract: 1325845 Ester emulsions MOBIL OIL CORP 3 Feb 1972 [15 March 1971] 5007/72 Heading C3R [Also in Division C7] A dual feed system for an electrophoretic coating bath containing an aqueous emulsion, comprising (i) a salt of a base, e.g. amine, ammonia, Na or KOH, with a polycarboxylic acid emulsifying agent having an acid number of at least 40 dispersed in a continuous aqueous phase and (ii) a polyol ester (at least partly esterified with a monobasic carboxylic acid) in an oil soluble phase dispersed in the aqueous phase, comprises supplying to the aqueous emulsion (1) an oil-in-water feed emulsion comprising the esterified polyol dissolved in water-insoluble organic solvent, e.g. toluene, xylene or isoctyl alcohol, in an oil-soluble dispersed phase and the emulsifying agent neutralized to an extent of from 25 to 45% in a continuous aqueous phase, the feed emulsion containing 50 to 100% by weight water based on total resin and solvent in the feed emulsion: and (2) a pigmented, basesatisfied, water-bearing and -thinnable solution comprising the emulsifying agent dissolved in a water-miscible organic solvent. The emulsifying agent is preferably a heat reaction product of aliphatic α,#-ethylenically unsaturated carboxylic acid with polyester of unsaturated fatty acid and aliphatic polyol. The oil-in-water feed emulsion (1) may comprise particles of partly esterified styrene-allyl alcohol copolymer dissolved in aromatic hydrocarbon solvent with phenol-formaldehyde resin, maintained in emulsion with a maleated oil partly neutralized with an amine, e.g. tall oil fatty acid and oiticica oil with diethylamine, and ethylene glycol monoethyl ether and carbon black pigment. The pigmented feed solution (2) may comprise basic lead silico chromate pigment, soya lecithin as surfactant, dehydrated castor oil/ cyclopentadiene modified linseed oil/maleic anhydride resin in ethylene glycol monoethyl ether, diethylamine and water. Specification 3,335,103 is referred to.
Patent GB-469049-A (GB)
Title: Hydraulic circuits and controls therefor
IPC: F41A19/55
Filed: 1936-02-19
Abstract: 469,049. Hydraulic apparatus. DUNLOP RUBBER CO., Ltd., WRIGHT, J., and TREVASKIS, H. Feb. 19, 1936, No. 5013. [Class 69 (ii)] [Also in Groups XXI and XXXIII] Aircraft guns and camera guns are operated by a hand-operated plunger on the main control which through a normally static column of liquid operates a plunger secured to a distributing-valve against the resistance of a spring. Oil is fed from a reservoir 1 by a hand or power pump 2 and pipe 3 through a hydraulically-actuated firing-valve 4 to the outlet 5 and returned by the passage 6. An excess - pressure relief valve connects the passages 3, 6. The valve 4 is operated from the flying-control 9. The valve comprises an adjustable, spring-pressed slide with an annular port 15 controlling the connection of inlet and return ports 10, 11 to an outlet port 12 leading to the gun. Liquid pressure is applied by a remote firing button on the handle 9. The cylinder 21 is filled with liquid through the duct 22, and the piston 25 is pressed in by the button 27, the end of which slides in a cylinder 29 in a sleeve 28 which carries a milled safety ring 30. Grooves 31, 32 in the ring 30 and sleeve 28 contain narrow leaf springs which may, depending upon the position of the ring 30, enter the space 29 and render the button 27 inoperative. A spring-loaded piston may be moved by the liquid to operate the bolt-release mechanism of the gun through a trigger lever, button, &c. The camera gun may be similarly operated by a hydraulic trigger, suitable overriding or trip mechanism being provided for such photographic exposures. Specifications 469,050 and 469,054 are referred to.
Patent GB-1283338-A (GB)
Title: Improvements in the propulsion of boats or other marine craft
Inventor: BYRNE THOMAS
IPC: B63H19/00
Filed: 1970-02-03
Abstract: 1283338 Marine propulsion T BYRNE 19 April 1971 [3 Feb 1970] 5051/70 Headings B7M and B7V  The drive of a marine craft 1 comprises a turbine 2 mounted in the craft to drive screw propellers 16, water being introduced to the turbine through a valve 7 in the keel giving access to a chamber 9 supplying the turbine. Spent water from the turbine is lifted by one or more pumps 22 and discharged above the Plimsoll line.
Patent GB-1087633-A (GB)
Title: Improvements relating to earth working machines
Inventor: PEROLD LOUIS
IPC: A01B31/00
Filed: 1964-02-06
Abstract: 1,087,633. Graders; scarifiers. SOUTH AFRICAN FARM IMPLEMENT MANUFACTURERS Ltd. Jan. 19, 1965 [Feb. 6, 1964], No. 5058/64. Headings E1F and E1G. To allow of full freedom for swinging a scraper implement 2 so supported beneath a chassis 1 as to be rotatable about a vertical axis, the support by which a scarifying implement 3 is carried beneath the chassis is independent of and is so spaced along the chassis from the support of the scraper implement that the scarifier implement when in a raised position lies clear of the scraper implement when it is swung. The scarifier implement is an addition to the scraper-scarifier implement of the referred to Specification 766041.
Patent GB-657611-A (GB)
Title: Improvements in or relating to gas heated apparatus
Inventor: BLUM HANS ADOLF
IPC: F23Q9/00
Filed: 1949-02-24
Abstract: 657,611. Gas burners. EWART & SON. Ltd. Feb. 24, 1949, No. 5118. [Class 75(iii)] The orifice of the pilot jet of a gasheated appliance is cleaned by means associated with the jet and readily operated from the exterior of the appliance. A pricker 12 mounted in axial alignment with the orifice 6 of a pilot jet 3 is slidable in a casing 11 against the action of a spring 14. An aperture in the casing of a water heater (not shown) gives access to operating knob 15 of the pricker so that the latter may be pressed into the orifice 6 in the direction of flow of the gas. A cap 17 screwed over the outer end of the casing 11 encloses packing 18 which makes a gas-tight seal with the holder 13. The latter is removably screwed into a plunger 16 on which one end of the spring 14 acts.
Patent GB-660902-A (GB)
Title: Improvements in or relating to drawing boards
IPC: B43L5/00
Filed: 1949-06-13
Abstract: 660,902. Drawing-boards. TAYLOR, H. June 13, 1949, No. 5156/49. Class 11. A drawing-board for the draughting of drawings greater-in size than the board comprises a plane board A'supported on battens E, and an appendant side portion K having a straight edge D for a tee-square and separated from the board by a space F, being attached to one of the battens by a U-shaped bracket H near each side of the board. A beam J attached to the other batten maintains the board on an even plane. If the drawing is longer and narrower than the board, the end passes through the space F and between the brackets H and under the edge D, 'while if it is also broader, it can be rolled up within the space F. The edges G of the board and portion K at the space F are chamfered to facilitate the passage of the paper through the gap.
Patent GB-788582-A (GB)
Title: Antenna system
IPC: H01Q13/24
Filed: 1956-02-21
Abstract: 788,582. Aerials. HAZELTINE CORPORATION. Feb. 21, 1956 [March 30, 1955], No. 5302/56. Class 40 (7). An aerial system comprises a rod 11 of material having a high permeability-permittivity product and means, such as the coil 20, located at one end of the rod to develop an electrical signal in response to the concentrated field in the rod. Use of a rod of material having a high permeability-permittivity product such as ferrite results in a much reduced wave velocity in the rod as compared with free space. As a result, the field components of a wave arriving with the direction of propagation shown are distorted and concentrated at the end 12 of the rod. The nature of this concentration is indicated for the magnetic field component 18 and it can be seen that this is concentrated in the two legs 15, 16 formed at the end 12 of the rod. As the direction of the field component is different in the two legs the pickup coil 20 is wound clockwise round one and anti-clockwise round the other, as shown, so that the voltages generated are added.
Patent GB-1248683-A (GB)
Title: Improvements in or relating to printing mechanisms
Inventor: HUBER MANFRED
IPC: B41J9/10
Filed: 1969-01-31
Abstract: 1,248,683. Selective printing. ENGLISH NUMBERING MACHINES Ltd. 7 Jan., 1970 [31 Jan., 1969], No. 5307/69. Heading B6F. [Also in Division G4] In a line printer having a series of type wheels and a row of print hammers, a print hammer 103 is moved leftwards, in against a type wheel (not shown) by the operation of an electromagnet 113 which moves an arm 107 downwards into the path of one of the projections 130 on a continuously rotating drum 117. The electromagnet is de-energized before the hammer reaches the type wheel but momentum carries the hammer forward; a spring then returns the hammer to its home position. A single electromagnet may operate one, two or four print hammers, which are guided in their movement by rods 121, 123 and 124. The electromagnets are operated in sequence by timing pulses generated photoelectrically or inductively from the rotation of the drum 117.
Patent GB-1496695-A (GB)
Title: Method of producing solid carbon article
IPC: C04B35/528
Filed: 1975-02-07
Abstract: 1496695 Carbon material with high bulk density and flexural strength KUREHA KAGAKU KOGYO KK 7 Feb 1975 [12 Feb 1974 14 March 1974] 5340/75 Heading C1A A solid carbon material having a bulk density of at least 1À9 g./cm.<SP>3</SP> and flexural strength of at least 900 kg./cm.<SP>2</SP> is produced by a method which comprises the steps of preparing by heating a pitch at 300-550‹ C. to obtain a carbon material having the H/C ratio of from 0À35 to 0À57, from 2 to 15% by weight of matter soluble in quinoline, 80-93% by weight of fixed carbon and a degree of heat shrinkage (as defined) of at least 2%; pulverizing the precursor carbon material to an average particle size not greater than 10 Á; shaping the pulverized precursor carbon material into a desired article at room temperature; carbonizing it at a temperature of at least 1000‹ C., and graphitizing the carbonized article at a temperature of from 2000‹ to 3000‹ C.
Patent GB-660122-A (GB)
Title: Improvements in or relating to fluid pressure indicators
Inventor: EMSLEY KENNETH
IPC: G01L17/00
Filed: 1948-02-24
Abstract: 660,122. Pressure gauges. KATHER ENTERPRISES, Ltd., A. C. Feb. 14, 1949 [Feb. 24, 1948; March 24, 1948], Nos. 5429/48 and 8642/48. Class 106 (ii). [Also in Group XXXIV] A fluid pressure indicator e.g. for a pneumatic tyre comprises a body 1 adapted to be seated on a valve which can be opened by a plunger 17 whereupon the fluid pressure acts on a resilient member 8 which is visible at least when extended by a predetermined pressure. As shown the plunger passes through a leakage-controlling valve diaphragm 19, and the indicating dia. phragm 8 is visible through a transparent cap 7. A tyre inflator may be attached to the part 28. Various modifications are described, e.g. the indicating diaphragm and cap may be ring- shaped and the space through which the diaphragm can expand can be adjusted, thus altering the pressure at which such expansion occurs. Two diaphragms may be provided which expand under different pressures, and various colour indications may be used on the diaphragms and caps.
Patent GB-711826-A (GB)
Title: Improvements relating to venetian blinds
Inventor: ORCHARD-LISLE ULRIC LOCK
IPC: E06B9/324
Filed: 1952-03-03
Abstract: 711,826. Blinds. LISLE, U. L. ORCHARD-, and GIRLING, A. H. G. March 3, 1953 [March 3, 1952; June 12, 1952], Nos. 5463/52 and 14785/2. Class 20 (3) The lifting cord, or cords 21, of a venetian blind are jammed against the pulley casing 22, when the cords are released and tend to run back, by a locking member 26 which rests freely at other times against the shoulder 251 of a retaining-wire 25 The jamming action of the member 26 is initiated by drawing the cords 21, before they are released from the hand, away from the blind so that they contact with serrations 264, the subsequent upward motion of the cords thus entraining the member 26. The casing 22 is secured to the blind head 23 by a screw 24 on which the pulley 20 rotates. The casing has serrated edges to bite into the head 23. To permit the member 26 to rock and accommodate itself to the cords, the pulley-engaging edges are bevelled as at 265, Fig. 5, and the sides 266 are bowed inwardly. A modified form of locking means 26 is shown in Fig. 10.
Patent GB-799785-A (GB)
Title: Improvements in vertical smoke tube boilers
IPC: F22B11/02
Filed: 1955-02-24
Abstract: 799,785. Hot-water boilers; composite steam boilers. VORKAUF, H. Feb. 24, 1955, No. 5535/55. Classes 64(1) and 123(2) A steam or hot-water boiler comprises a firebox 2 having walls lined with watertubes, a tank 1 having vertical smoke tubes, and a flue 3 located between the combustion chamber and the tank and conveying hot gases from the former to the smoke tubes. The wall 4 separating the firebox 2 and flue 3 comprises spaced water tubes and intermediate plates or fins which close the gaps except in the upper part. The water tubes are connected to bottom and top tubular headers 16, 17 which are connected to the tank and to vertical return tubes 8 at the front. In a modification in which the firebox has a burner at the top from which the gases flow downwardly, a second flue is provided between the firebox and tank, and a superheater and evaporator are located in the flues.
Patent GB-1115018-A (GB)
Title: Apparatus for electro-encephalography
IPC: A61B5/276
Filed: 1967-02-06
Abstract: 1, 115, 018. Physiological measuring apparatus. AHREND-VAN GOGH N. V. Feb. 6, 1967 [Feb. 14, 1966], No.5573/67. Heading G1N. In a multichannel electro-encephalograph having an auxiliary amplifier channel to record e. g. heart action or respiration, all the amplifier inputs and outputs are connected through twoway switches to common input and output busbars so that the auxiliary amplifier may be used to replace any defective main amplifier, (at the expense of the auxiliary channel).
Patent GB-621447-A (GB)
Title: Improvements in slide wire permeability tuning unit
IPC: H01F21/06
Filed: 1947-02-26
Abstract: 621,447. Inductances. PLESSEY CO., Ltd. Feb. 26, 1947, No. 5588. Convention date, Feb. 26, 1946. [Class. 38 (ii)] A variable inductance slide-wire tuning device comprises a rotatable structure having a magnetic portion of pressed powdered material, upon which structure is wound a coil, of which a section is coupled to the core, and a contact engaging the coil so as to travel along it as the structure is rotated. Preferably, the core has a tapered portion whereby the frequency range is increased and the variation of frequency over the whole coil is made substantially uniform. Fig. 1 shows a tuning coil 20 mounted on a structure 10 having a non-magnetic portion, preferably of insulating material, and a magnetic portion 35 of powdered iron having a tapered aperture 38. The portion 35 does not extend into the highfrequency portion of the coil and hysteresis and eddy current losses are thereby reduced. The construction makes a compact coil with a small residual inductance. The complete unit may be enclosed in a shield can as shown. In a modification .as shown in Fig. 4 the low-frequency portion 39 of the coil may be wound on a recessed powdered iron core 40 in a helical groove and may or may not be insulated therefrom. The high-frequency end of the coil is carried by a former 44, of insulating material which is supported on the core 40 by means of the shoulder 45.
Patent GB-850306-A (GB)
Title: Improvements in electric circuit breaker arc exhaust products cooling means
IPC: H01H9/34
Filed: 1958-02-20
Abstract: 850,306. Arc rupturing in switches. ALLISCHALMERS MANUFACTURING CO. Feb. 20, 1958 [Feb. 28, 1957], No. 5593/58. Class 38 (5). An arc-chute having insulating arc plates is fitted with a plurality of transverse cylindrical cooling elements 25 at the exhaust end of the chute, some of the elements being at different distances from the arc-receiving end of the chute. As shown, the cooling elements are in the form of grouped insulating tubes and the tube groups are separated by insulating sheets 27. The groups at the sides of the arc-chute contain more tubes and extend nearer the exhaust end of the arc-chute than those at the middle. Specification 689,227 is referred to.