baber/WOPTO huggingface dataset:
Patent GB-1211414-A (GB)
Title: Improved covering for accumulator electrode and an electrode comprising such a covering
IPC: H01M4/76
Filed: 1968-01-30
Abstract: 1,211,414. Laminates. TUDOR A.B. 30 Jan., 1968 [22 Sept., 1967], No. 4677/68. Heading B5N. [Also in Division H1] The covering for a tubular electrode for a lead-acid battery is made by placing glass-fibre stockings 3 on formers 5, stacking them with polythene strips 4, heating and pressing together the formers 5 so that adjacent tubes of the covering are separated by glass-fibre reinforced polythene partitions. The covering may also have stiffening ledges or reinforcing sheets applied to the major surfaces and in one embodiment (Fig. 12, not shown) the strips 4 protrude beyond the major surfaces to form spacers 14. In another embodiment (Fig. 5, not shown) the stockings 3 are placed on flat formers 7 before laminating and the tubes are opened after laminating and the removal of the formers. Glass fibre can be replaced by polyester or polypropylene fibres and polythene by PVC or an epoxy resin or polypropylene.
Patent GB-677928-A (GB)
Title: An improved method of, and apparatus for making a fibrous web for the manufacture of non-woven fabric
IPC: D04H1/72
Filed: 1950-02-23
Abstract: 677,928. Lap-forming apparatus; openers &c. JOHNSON & JOHNSON (GREAT BRITAIN), Ltd. Feb. 23, 1950. [Feb. 23, 1949], No. 4726/50. Class 120(i) A substantially isotropic fibrous web for the manufacture of non-woven fabric is produced by inducing turbulence into an air stream, continuously and progressively removing fibres from the advancing edge of a feed of fibres and introducing them into the turbulent air stream downstream of the place where turbulence has been induced, subsequently stopping the movement of the fibres in the direction of the air flow whilst permitting the air stream to continue so as to produce a web, and then removing the web from the air stream. As shown, a web 26 of longitudinally aligned fibres, in the form of a corded web or an assembly of cord slivers, is fed by a roll 30 to a rotary lickerin-type combing roll 34 which rakes the fibres individually from the feed web and doffs them centrifugally into an air stream in a conduit 10. Air is drawn through conduit 10 by a fan 18 and is rendered turbulent by passing through a restricted inlet 40 into a diffusion chamber at the entrance to the conduit. The depth of the conduit is reduced towards the fibre feed point to give improved uniformity of air flow. The air velocity at the fibre feed point may be greater than the peripheral speed of roll 34, to aid the doffing of fibres from the roll. The depth of the conduit increases towards a rotary screen 22 on which the fibres are deposited and by which they are removed from the air stream in the form of an isotropic web 24. To avoid thin selvedges being formed on web 24, the side walls of conduit 10, between the fibre feed and the screen, may be provided with narrow baffles which produce local turbulence along the side walls and cause the air flow at the walls to be uniform with that at the conduit centre. Specification 674,779 is referred to.
Patent GB-544219-A (GB)
Title: Improved process for obtaining fibres, more particularly bast fibres, from vegetablematerials
IPC: D01C1/02
Filed: 1940-03-14
Abstract: 544,219. Obtaining fibres. ABBEY, A. (Naamlooze Vennootschap Fontania Centraal Import-en Exportkantoor). March 14, 1940, No. 4819. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 23, 1940.] [Class 2 (ii)]  Fibres are obtained from vegetable fibrous material, e.g., bast fibres from flax &c. by heating the material with a solution containing hydrogen peroxide, urea and a buffer substance preferably a phosphate ; the woody matters are thus loosened and are removed by mechanical means. In an example, 100 kgs. of flax are immersed in 1,600 litres of a bath containing 0.5 per cent. hydrogen peroxide, 1 per cent. urea, 0.5 per cent. ammonium phosphate and, if desired, 0.5-1 per cent, of ammonium carbonate. The temperature of the bath is raised from 50 C. to 80-100 C. and the treatment continued for 1-1¢ hours after which the material is rinsed with hot water to which a little acid, e.g., hydrogen sulphide is added and the woody matters removed by mechanical treatment. The treatment may be carried out in vacuo or at atmospheric or greater pressure and the final material may be bleached by the action of light or by treatment with alcohols or ketones, e.g., acetone. The hydrogen peroxide may be formed electrolytically in the bath and a mixture. of ammonia and carbon dioxide may be used to form the urea and ammonium carbonate.
Patent GB-1170831-A (GB)
Title: O-Substituted Pyrrolidinols and S-Substituted Thiopyrrolidinols and Processes for their Preparation
Inventor: LUNSFORD CARL DALTON
IPC: C07D207/12
Filed: 1967-02-01
Abstract: 1,170,831. Pyrrolidinols; thiopyrollidinols. A. H. ROBINS CO. Inc. 1 Feb., 1967, No. 4822/67. Heading C2C. Novel compounds of the general formula wherein R<SP>1</SP>, R<SP>3</SP> and R<SP>4</SP> each represent H or C 1 -C 6  alkyl, R<SP>2</SP> is aralkyl, substituted aralkyl or thenyl, R<SP>5</SP> is H, alkanoyl or aroyl, X- is an anion, Y is O or S and the known compound 1-benzyl-3-pyrrolidinol acetate methobromide are prepared by the following reaction schemes where if R<SP>5</SP> is H the acylation step is omitted. where if R<SP>5</SP> is H the acylation step is omitted. The intermediate product then being reacted with a quaternizing agent R<SP>2</SP>X; or the intermediate product then being reacted with R<SP>2</SP>X or in the above equation R<SP>2</SP>NH 2  may replace R<SP>1</SP>NH 2  in which case R<SP>1</SP>X is used instead of R<SP>2</SP>X. A pharmaceutical composition for controlling arrythmia comprises as active ingredient a compound of the first general formula above and a carrier or excipient.
Patent GB-866344-A (GB)
Title: Improvements in or relating to the preparation of cyano compounds
Inventor: YATES JOHN
IPC: C07C255/49
Filed: 1960-02-11
Abstract: Benzonitriles of the formula:  <FORM:0866344/IV (b)/1> where X represents a halogen atom and Y represents a halogen atom or an alkyl group of 1-5 carbon atoms are prepared by reacting the correspondingly substituted benzaldehyde with hydrazoic acid in an inert solvent in the presence of concentrated sulphuric acid.  The reaction is preferably carried out at 0-25 DEG C. using 1-1,2 moles hydrazoic acid per mole of substituted benzaldehyde and 2-4 ml. sulphuric acid per gm. of substituted benzaldehyde.  The hydrazoic acid may be formed in situ by the action of additional sulphuric acid on an alkali metal azide.  The solvent used is preferably an aromatic hydrocarbon e.g. benzene or a halohydrocarbon.  An example describes the preparation of 2,6-dichlorobenzonitrile.
Patent GB-901972-A (GB)
Title: Frequency discriminator
Inventor: ANTHONY MYRON L
IPC: H03D3/14
Filed: 1959-02-12
Abstract: 901,972. Frequency discriminators. MERO, P. G. S. Feb. 12, 1959, No. 4936/59. Class 40 (5). A frequency discriminator comprises two transistors 16, 17, the base electrodes of which are supplied in push-pull from the intelligence signal source 10 through a transformer and the emitters of which are supplied with a control signal from a frequency-responsive phase-shifting device in the form of a series-resonant circuit 27, 26 tuned to a reference frequency equal to the intelligence signal frequency, the control signal being of a frequency equal to the intelligence signal but shifted in phase by an amount determined by the intelligence frequency, the collector load circuit comprising resistances 20, 21 and the output of the discriminator at terminals 24, 25 consisting of a voltage, the amplitude of which indicates the intelligence signal frequency with respect to the reference frequency. When the signal frequency is equal to the reference frequency, i.e. the resonant frequency of the tuned circuit 26, 27, the net output of the discriminator will be zero, as shown at 46 in Fig. 2, where 42 (in solid lines) represents the output of transistor 31 for this frequency condition. The inputs to the bases of the transistors 16, 17 are as shown at 40, 41 in Fig. 2 and the output from transistor 31 applied in push-push to the transistor emitters will cause them to conduct current from the negative D.C. source B - to ground alternately, the currents through resistances 20, 21 (R 1 , R 2 ) being shown at 44, 45, respectively. The other case shown in Fig. 2 is that when the frequency of the intelligence signal is in such relationship with the reference frequency that the output of tuned circuit 27, 26 at 28 is shifted by a further 90 degrees, this being represented by 50 in the Figure. In this case transistor 16 is cut off all the time while transistor 17 conducts during each negative half-cycle of signal 41 so that there will only be a current through 21 (R 2 ) which is shown at 53, and the average voltage output at 24, 25 is as shown at 54, or, if the output at 28 is shifted in phase the other way, as shown at 55. A modification of the discriminator is described (Fig. 4, not shown) in which the control signal is used as a gating signal for the push-pull connected transistors rather than as a biasing signal for the emitters, while in a further embodiment (Fig. 5, not shown) the third transistor is omitted and the output tuned circuit connected to the transformer secondary input to the push-pull transistors, the emitters of which are earthed. In a further embodiment (Fig. 6, not shown), the control signal circuit is included in the load (or collector circuit) of the push-pull transistors. A detailed circuit diagram of the embodiment of Fig. 1 is given (Fig. 7, not shown).
Patent GB-624555-A (GB)
Title: Improvements in or relating to variable speed devices for computing mechanism
IPC: G06G3/08
Filed: 1942-07-01
Abstract: 624,555. Bomb-sighting apparatus. SPERRY GYROSCOPE CO., Inc. July 1, 1942, No. 4972/44. Convention date, April 9, 1941. Divided out of 624.554. [Class 92 (ii)] [Also in Group XXIV] A variable speed device for computing mechanisms, of bomb sights for example, comprises a floating disc 1 driven by a cylindrical member 3 through adjustable ball means 5 and serving to drive a cylindrical member 4 through similar means 6, the disc being urged against the ball means by devices such as spring-controlled rollers 7, 8. In the construction shown the balls 5, 6 are mounted in carriages, the radial positions of which with respect to the disc can be varied by screwthreaded portions of shafts 35, 63. Lateral displacement of the disc in its own plane is prevented by rollers 2 which engage the periphery thereof and tilting is prevented by rollers 9, 10. The device is described in the Specification applied to the bomb-sight mechanism forming the subject of Specification 624,554.
Patent GB-124283-A (GB)
Title: Improvements in Zinc-vapour Rustproofing.
Inventor: DAPONTE DEMETR
IPC: C23C10/02
Filed: 1918-03-21
Abstract: 124,283. DapontÚ, D., and Newman, T. F. March 21, 1918. Coating.-Iron or steel articles to be rendered rust-proof by means of a coating of zinc are first coated with copper or copper alloy by electrolysis or by immersion in a suitable solution of a copper salt such as sulphate or cyanide, and are then coated with zinc by a vapour coating process or by a process such as heating in zinc dust for 30 minutes to 4 hours at 150-200‹ C.
Patent GB-525168-A (GB)
Title: Valve timing gear for internal combustion engines, steam engines, compressed gas engines or hydraulic motors
IPC: F01L5/04
Filed: 1939-02-16
Abstract: 525,168. Valves. ROVIN, R. A. P. DE. Feb. 16, 1939, No. 5068. Convention date, Feb. 19, 1938. [Class 7 (vi)] [Also in Groups XXVI and XXIX] The inlet at 3 and exhaust at 4 of an internalcombustion, steam, or compressed-gas engine, or of a hydraulic motor, are controlled by piston valves 1 and 2 respectively, connected by rods 9 and 10 to cranks 11 and 12 which are disposed at 90 degrees to one another, the arrangement being such that, at the end of the compression stroke, the cranks 11, 12 and rods 9, 10 are symmetrical with the cylinder axis, the rods preferably being crossed.
Patent GB-159409-A (GB)
Title: Improvements in or relating to gas producers
IPC: C10J3/24
Filed: 1920-02-19
Abstract: 159,409. Tully, C. B. Feb. 19, 1920. Producers.-In a water-gas producer in which the upper and lower gas-exit pipes terminate in a wash-box, the gas-exit and steam-admission valves are interconnected so as to be opened or closed simultaneously. The valves f at the bottom of the upper and lower gas-exit pipes b, care operated by rods g, h as described in Specification 112,091, and the rods h are connected by links p to lever arms r of steam-supply valves o, the whole mechanism being operated by loaded hand-levers t. A pipe x with a valve y communicating with the steam-supply pipe k at the delivery side of the valve k<1> is provided for draining condensed steam into the wash-box d.
Patent GB-1130157-A (GB)
Title: Improvements in mercury vapour halogen discharge lamps
IPC: H01J61/18
Filed: 1966-02-07
Abstract: 1,130,157. Metal-vapour lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 7 Feb., 1966 [10 Feb., 1965], No. 5221/66. Heading H1D. In a high-pressure mercury vapour halogen discharge lamp having a discharge space which contains mercury, a rare gas, a halogen, lead and optionally gallium and/or indium, the discharge space contains from 0À004 to 0À12 mgs. of lead per cubic cm. and the quantity of halogen is chemically equivalent to at least the total lead plus gallium plus indium and to not more than twice that amount. The halogen is preferably iodine. The discharge may be wall stabilized with the quantity of mercury 0À1 to 5 mg./cm.<SP>3</SP> of the discharge space, or electrode stabilized with 10 to 50 mg./cm.<SP>3</SP> of mercury. The lead and part of the mercury may be introduced as halides. The indium and/or gallium may also be present as halides. The lead increases the radiation in the range 350-450 nm. and the lamp is suitable for use in photo-copying or for irradiating flowing liquids in chemical processes, e.g. nylon manufacture.
Patent GB-453828-A (GB)
Title: An improved method and means for salting the intestines of animals prior to the use of said intestines as sausage skins
IPC: A22C17/14
Filed: 1935-02-18
Abstract: 453,828. Preserving animal intestines for use as sausage skins. DARRINGTON, T. A., 321, Smithfield Market, London. Feb. 18, 1935, No. 5246. [Class 49] Animal intestines for use as sausage skins are, after cleaning and while still moist, salted individually by drawing them lengthwise through a bed of salt which is formed on a moving body, the direction of motion of each of the intestines being transversely of or inclined at a suitable angle to the direction of motion of the bed of salt. In one form, the salt bed x, Figs. 1, 2, is formed on a rotating disc 9 which is attached by nuts 7, 8 to a sleeve 5 keyed on a spindle 3 rotatably mounted in a bearing 2 carried by the table 1 supporting the machine. The spindle 3 is rotated by a handle 14 through sprockets 11, 4 and a chain 10. The skins are bunched together and tied at one end y which is salted before attaching it to a V-shaped member 27 secured to a wheel-like frame 6 which is attached to and rotates with spindle 3. The member 27 is brought to point s and the individual intestines are then threaded between upright teeth 18, 20, Fig. 3, on two stationary curved members 15, 19 so that they are drawn through the salt bed x tangentially to frame 6 on which they are then wound. The members 15, 19 are supported by brackets 16, 17 secured to the table 1 and their lower ends are in sliding contact with desk 9. The teeth 18 have a rearward and the teeth 20 a forward inclination. When all the skins have been wound on frame 6 they may be removed by lifting off at a point about diametrically opposite to member 27. The salt is supplied to disc 9 from a hopper 28, Fig. 4, in the form of an inverted half cone having at its lower end a slot 29 through which extends a rod 30, secured to spindle 3, which sweeps round and ejects salt from the hopper. The salt is retained on the disc 9 by a fixed curved plate 33 the lower end of which slides in a groove 34 on the disc, the plate having a deflector 32 to direct salt inwardly from the edge of the disc. A plate 36 deflects salt from the rear end a of member 15 onto the disc 9. In a modification, Fig. 6, the frame 6 has a peripheral trough 37 united thereto by an inclined portion 6a. The rods 23 of frame 6 are inclined so that each convolution of intestine is caused to push a preceding one up the frame, the rear end of the last intestines to be wound falling into trough 37 which has apertures 38 through which liquid can drain off. The Provisional Specification describes another form of the apparatus.
Patent GB-581184-A (GB)
Title: Improvements in or relating to electric insulating materials and dielectrics
IPC: H01B3/44
Filed: 1944-03-21
Abstract: An insulating and dielectric medium suitable for use with radio currents of different frequencies extending over a range of at least 10 megacycles per second, consists of a mouldable non-conducting material having a metal in a finely-divided state distributed therethrough in a quantity sufficient to endow said composition with a ratio of reactance to resistance of a predetermined value which is substantially constant or increases with the frequency of the current.  The metal is preferably copper or silver and the non-conducting material polystyrene, a phenol aldehyde, urea aldehyde or a furfural resin.  A mixture of 10 per cent copper powder and 90 per cent polystyrene gives a medium in which the above ratio is substantially constant.  If the amount of copper is increased up to 70 per cent, then the above ratio rises with increasing frequency. Reference has been directed by the Comptroller to Specifications 407,602, [Group V], 446,660, [Group VI], 458,505 and 497,689.ALSO:An insulating and dielectric medium suitable for use with radio currents of different frequencies extending over a range of at least 10 megacycles per second, consists of a mouldable non-conducting material having a metal in a finely divided state distributed therethrough in a quantity sufficient to endow said composition with a ratio of reactance to resistance of a pre-determined value which is substantially constant, or increases with the frequency of the current.  The metal is preferably copper or silver and the non-conducting material polystyrene, a phenol aldehyde urea aldehyde or a furfural resin.  A mixture of 10 per cent. copper powder and 90 per cent. polystyrene gives a medium in which the above ratio is substantially constant.  If the amount of copper is increased up to 70 per cent. then the above ratio rises with increasing frequency. Reference has been directed by the Comptroller to Specifications 407,602, 416,660, [Group XX], 458,505 and 497,689, [Group IV].
Patent GB-121243-A (GB)
Title: Improvements in the Lubrication of High Speed Reciprocating Engines.
Inventor: LANCHESTER FREDERICK WILLIAM
IPC: F16N21/00
Filed: 1918-03-26
Abstract: 121,243. Lanchester, F. W. March 26, 1918. Channels in connecting-rods.-To lubricate the gudgeon-pins and pistons of high-speed engines, an oil passage consisting of a number of loops h is formed in, or fixed to, each connecting-rod, and oil, which is supplied copiously to the crankpin, is impelled by dynamic action along the passage to the gudgeon-pin c or slipper block. The oil may also be conveyed to the surface of the piston. The looping of the passage requires to be in the right direction corresponding to the motion of the connecting-rod. In reversing- engines, two looped passages of opposite hand are provided.
Patent GB-270037-A (GB)
Title: Blowing organs
IPC: G10B3/02
Filed: 1926-02-25
Abstract: 270,037. Swinburne, J. Feb. 25, 1926. Organs, blowing-apparatus for; pipes.-In a fan-blown organ the fan is arranged normally to feed the full wind supply, the excess escaping through a relief valve. The usual expansible reservoir and roller-blind valve may thus be eliminated; or the relief valve may be arranged between the fan and the roller-blind. Overheating of the air, due to the use of a fan with a throttled outlet is avoided. In Fig. 1, the fan A delivers air to a box D with relief valve F. wind trunks being attached at E. The valve F is held down by a clock spring in a barrel G, the pull of the spring, which is regulated by turning the arbor, not increasing perceptibly as the valve opens. Where several pressures, say 9, 5 and 3¢ inches are used, a 4 inch valve may let wind from the 9 inch chest into the 5 inch chest, a 1¢ inch valve being similarly arranged between the 5 and 3¢ inch chests, and a 3¢ inch valve opening to air. Or a series machine, or three separate fans in series, may be used. A construction illustrated employs two fans. Where different pressures are required for different stops, or from bass to treble, simplification can be obtained by placing pipes on pressures which are higher than those on which they speak, and constricting the hole in the foot or boot. A gauze baffle or ball of metal fibre is inserted to prevent turbulence in the foot or boot. In the Provisional Specification, the use of reciprocating feeders is referred. to.
Patent GB-183170-A (GB)
Title: Armature testing device
IPC: H02H7/08
Filed: 1921-02-16
Abstract: 183,170. Cullin, J. F. Feb. 16, 1921. Locating faults in insulation; combinations of instruments. - An armature-testing device comprises means for rotatably supporting the armature, an electromagnet for inducing currents in the armature coils, indicators to show the intensity of these currents, and means electrically connecting the indicators and contacting with the commutator segments. The device is described with reference to an armature having twenty-one coils. The armature is supported between the poles of an electromagnet 11, 12 on pedestals 3, 4 connected to an iron plate 2, the commutator segments being connected to a series of lamps 20 - - 24 by contact pins 33 - - 38 through switches 25 - - 29. The contact pins are mounted to slide in an insulating-block 32 against conducting-springs 42, a spring contact 39 being earthed through the lamp 24. The number of coils between certain commutator segments and between the contact pins determines the degree of brilliancy of the lamps 20 - - 23 and a short-circuit in one of the coils alters the brilliancy, thus indicating the faulty section of coils. The faulty coil is located by a lamp circuit always connected to one coil, An earthed coil is located bv the contact 39 when the lamp 24 glows. The switches 25 - - 29 may be omitted.