baber/WOPTO huggingface dataset:
Patent GB-570525-A (GB)
Title: Improvements in electrically heated cooking vessels and kettles
IPC: A47J27/21
Filed: 1943-09-13
Abstract: 570,525. Actuation of switches. PRICE & SON (STAMPERS), Ltd.. T., and PRICE, E. E. Sept. 13, 1943, No. 14967. [Class 38 (v)] When the water level in an electric kettle or like device falls below a certain amount, springs 27, operating against' the reduced weight, cause the kettle to tilt and separate contacts 39, 41 in the heating circuit. The amount of tilt is limited by stops 24, 25 between which the flange 15 of the supporting plate 13 moves. The position of the contact 39 may be adjusted by a screw 35 which varies the position of a wedge 36 arranged between the bottom of the kettle and the plate 32 carrying the contacts.
Patent GB-1023792-A (GB)
Title: Benzimidazole derivatives and processes for making them
Inventor: DRAIN DAVID JOHN
IPC: C07D235/14
Filed: 1963-04-17
Abstract: The invention comprises benzimidazoles of the formula <FORM:1023792/C2/1> wherein R1 is H or Ph, R2 is H or Me, R3 is H or Ph, R4 is H or alkyl (C1- 4) and R5 is H o alkyl (C1- 4) provided that R1, R2, R3, R4 and R5 do not simultaneously all represent H and further provided that when R1 is Ph at least one of R4 and R5 is H, and the preparation thereof (1) (wherein R2 and R3 are H and at least one of R4 and R5 is H) by converting an acid <FORM:1023792/C2/2> where Ac is an acyl group (e.g. tosyl) into a reactive derivative thereof (e.g. the acid chloride) and reacting this with a diamine of the formula <FORM:1023792/C2/3> treating the product with acid to effect ring closure and hydrolysing off the acyl group and optionally preparing the b -aminocarboxylic acid by reacting an a -unsaturated nitrile with a compound AcNHR4 and hydrolysing the addition compound, (2) (wherein R2 and R3 are both Me and at least one of R4 and R5 is H) by acylating an aminoaldehyde, forming the aldoxime, converting this to the b -aminocarboxylic acid, then subjecting this to the process as in (1), and optionally preparing the amino aldehyde from isobutyraldehyde and a primary amine, (3) (wherein R1, R2 and R3 are H and R4 and R5 are both alkyl) by replacing the nitrile group in a compound R4R5NCH2CH2CN by a reactive group (e.g. an iminoether group) and reacting it with o -phenylenediamine, and (4) (wherein R1, R2 and R3 are H and at least one of R4 and R5 is H), by replacing the -CN in a compound <FORM:1023792/C2/4> by a reactive group, reacting the product with o-phenylene diamine and hydrolysing off the acyl group, and optionally forming the nitrile by addition of an N-alkylsulphonamide AcNHR4 to an a -unsaturated nitrile.
Patent GB-1193563-A (GB)
Title: Improvements relating to Torsion-Bar Stabilisers for Vehicles.
IPC: F16F1/16
Filed: 1968-03-28
Abstract: 1,193,563. Torsion bars. DAIMLER-BENZ A.G. 28 March, 1968 [1 April, 1967], No. 14990/68. Heading B7D. [Also in Division F2] A bent torsion bar having the configuration shown is used as a vehicle stabilizer. The vehicle wheels have wheel guiding members (not shown) which are attached to the eyes 1 at the bar ends; the vehicle chassis is attached to the bar at the points 2; and the mid-point 5 of the bar is sufficiently far below the line joining the points 2 for the vehicle sump &c. not to be fouled by the bar as it deflects in use. The angle α is 10 to 15 degrees.
Patent GB-441761-A (GB)
Title: Improvements in or relating to the method and means for the synchronisation of television receivers by the transmitter
IPC: H04N5/06
Filed: 1934-05-22
Abstract: 441,761. Television. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Berlin. May 22, 1934, No. 15148. Convention date, May 19, 1933. [Class 40 (iii)] In a television system in which the picture signals and synchronizing impulses are transmitted over the carrier wave, a constant positive potential bias is applied to the line over which the picture signals pass to the modulation stage of the transmitter during the period of effective transmission of the picture and the synchronizing impulses are produced by reducing the bias by electrical means to a constant and definite value during the synchronizing periods at the ends of the lines and of the pictures. The lead line is preferably earthed or short-circuited. A positive potential is supplied from a mains device indicated diagrammatically by a battery 6 to a line 4 connected to the picture-signal smplifier 1. The line control impulses are generated by a photo-electric cell 22 and when applied to a screened grid discharge valve 10, normally biassed to be non-conducting, the valve passes current for a period determined by the resistance 12 and the condenser 13. The image synchronizing impulses are generated by rendering the valve 11 conducting for a period determined by the resistance 14 and the condenser 15. The impulses controlling the discharge of the valve 11 may be generated from a second photo-electric cell or may be derived from lighting mains 29. The alternating current is utilized to generate relaxation oscillations in the circuit including a phase reversal commutator 33 and a valve 25 and these are applied to the valve 11. In a modification, Fig. 2 (not shown) the valves 10, 11 are not directly connected to the line 4, the impulses generated by them during the synchronizing periods being applied to a relatively strong power amplifier of which the valves are normally locked against operation by a relatively strong negative bias applied to their grids. Fig. 3 shows an associated receiving arrangement in which the picture signals and synchronizing impulses are applied to the control electrode of a cathode-ray tube 7 and to the cathode of a valve 8 which is biassed to pass current only when the relatively negative synchronizing signals are received. These impulses are roughly separated by tuned transformers 11, 12 and are applied through filter arrangements 13, 14 and 15, 16, 17 to valves 18, 19 controlling the scanning movements of the beam. Fading is compensated by employing the potential at a point 20 in the output of the valve 8 as grid-bias for the variable-mu valves in the intermediate amplifier 4. The contrast in the received picture may be regulated by variation of the resistance 22 and the normal grid bias of the valves in the amplifier 4.
Patent GB-604451-A (GB)
Title: Liquid starch compositions
IPC: D06M15/11
Filed: 1945-06-15
Abstract: Liquid starch compositions are made by heating a mixture of starch and water, e.g., 12oz. of maize starch and 1 U.S. gallon of water, at a temperature and for a time sufficient to cause rupture of the starch granules, cooling the mixture sufficiently to cause its gelatinization, adding a blueing agent before or after the cooling, and, preferably after allowing the mixture to stand for 24-72 hr., converting the mixture into fine particles in the presence of air, e.g., by passage through a strainer or an atomizer, there being added 5-40g. of pine oil and 2-30g. of boric acid per U.S. gallon of mixture before the conversion or between two successive conversions.
Patent GB-721911-A (GB)
Title: Improvements in and relating to aerial arrays
IPC: H01Q1/14
Filed: 1952-06-17
Abstract: 721,911. Aerials. BELCHER (RADIO SERVICES), Ltd., and HOWELL, E. C. June 10, 1953 [June 17, 1952], No. 15234/52. Class 40 (7). An aerial array comprises lengths of flexible conductors 10, 11 and 12 comprising a dipole and passive element; the lengths being secured to rigid cross arms 13, 14, 15 at the required spacing and the cross arms having tensioning means for attachment to fixing points and so maintaining the array extended for use. As shown in Fig. 1 the array is mounted in a roof between the ridge piece R and a joist J and the elements are maintained parallel by tension springs 22. When the array is correctly orientated a further spring 23 is attached to a hook 20 in one of the plates 16 or 17 at the ends of the centre cross arm and coupled to a suitable point on a portion P to maintain it in position. If the height available is too little for the dipole elements 10 and 11 to lie in the same straight line the cord 26 may be partially or wholly dispensed with and the array drawn into an arrowhead shape, Fig. 2 (not shown). The conductors may comprise twin wires encased side by side in plastic insulation. They are secured to the outer cross arms 13 and 15 and the inner ends of the dipole elements taken through holes in plate 17 to connecting block 19 while the conductor 12 is continuous but threaded through similar holes in the plate 16.
Patent GB-239829-A (GB)
Title: Improvements in shock absorbers for the handle-bars of bicycles
IPC: B62K21/14
Filed: 1925-06-12
Abstract: 239,829. Arzens, J. E. Sept. 9, 1924, [Convention date]. Handle-bars of cycles are provided with a shock-absorber comprising a casing 1, 2, of which the lower part 2 is integral with the handle-bar stem 4 and the upper part 1 is bolted to the part 2, a collar 5 clamped to the handle-bar 7 and provided with flanges 6, and springs 11 on either side of the flanges 6, which thus form a spring-controlled lever arm on the handle-bar. Relative rotation between the collar 5 and the handle-bar 7 may be prevented by serrating their interengaging surfaces as shown, or by providing projecting pins on the handle-bar, each adapted to engage one of a series of holes in the collar, the handle-bar thus being angularly adjustable.
Patent GB-110603-A (GB)
Title: Improvements in Pressure-releasing Devices for the Rollers of Clothes Wringers.
Inventor: HOLADAY ALBERT EDWARD
IPC: D06F45/00
Filed: 1916-10-26
Abstract: 110,603. Holaday, A. E. Oct. 26, 1916. Wringers, pressure and roller-separating arrangements for.-On the upper side of the top-bar 5, which is slidably fitted between the arms of the side bars, is mounted a bow spring 20 held by screws 22 passing through slots. The ends of the spring are slotted and are bent round to form eyes, engaging pins 25, the outer ends of which take under hooked lugs 27 secured to the side-bars. Depression of the spring forces the pins out of the lugs 27, whereupon the top bar flies upwards under the influence of the pressure springs 15. The springs 15 bear at their lower ends upon shouldered bosses 13 having lugs 13<1> fitting in grooves in the side-bars to prevent their turning. The gear cases are provided with hook arms 16 engaging the springs 15, whereby the cases are raised when the rollers are released.
Patent GB-678513-A (GB)
Title: Improvements in or relating to the manufacture of magnetic recording media
Inventor: DUTTON GILBERT FARADAY
IPC: G11B5/70
Filed: 1949-06-09
Abstract: 678,513. Photo-electric apparatus for testing translucent material. ELECTRIC & MUSICAL INDUSTRIES, Ltd. June 9, 1950 [June 9, 1949], No. 15349/49. Class 40 (iii). [Also in Group VIII] In apparatus for testing the magnetic sensitivity of a magnetic recording tape, comprising a translucent tape coated with magnetizable particles, the material is passed continuously between apertured plates 1, 2 (Fig. l),.on one side of which is a lamp 13 and on the other a chamber 16 with an aperture 9 admitting light through a filter 12 of the same colour as the tape to a casing 6 containing a photo-electric cell 7 whose output is measured by a meter indicating the tape thickness and hence its magnetic sensitivity. In manufacture, cellulose acetate tape from a roll 17 (Fig. 2), is drawn over heated tension rollers 19 and past a dusting brush 18 by a continuous suction belt 20. The tape passes under a hopper 22 coating it with a plastic paste containing iron oxide powder, through steam heated coils 23 and a drying oven 24, is then tested for thickness by the device 25 shown in Fig. 2, and taken up by a roller 27. The flow of paste from the hopper to the tape may be automatically or manually controlled in accordance with the indications to maintain the magnetic sensitivity constant. The testing device may be traversed manually or automatically across the tape width, and the feed may be arrested or the tape marked at points of incorrect thickness. Infrared, #, and γ-rays may be used instead of visible light.
Patent GB-1177513-A (GB)
Title: A Process for Making Sheet Materials Which Are Permeable to Water Vapour.
Inventor: HOLCIK CYRIL
IPC: D06N3/14
Filed: 1967-04-04
Abstract: 1,177,513. Coated sheet material. CESKOSLOVENSKE ZAVODY GUMARENSKE A PLASTIKARSKE OBOROVE REDITELSTVI. 4 April, 1967 [28 April, 1966], No. 15370/ 67. Heading B2E. [Also in Division C3] A water vapour permeable sheet material is prepared by mixing together a solution of a polymer and a solvent and a dispersion of 0.5-20% by weight based on the polymer of fibrids in a medium comprising a non-solvent of the polymer, the quantity of said non-solvent being sufficient to convert the said solution into a colloidal dispersion of the polymer, forming a layer of the colloidal dispersion and submitting the layer to the action of a coagulant of the polymer in which the fibrates and the polymer are not soluble. The polymer may be a polyester, a polyether urethane, a polyether urea, a block polymerized urethane urea, a polyamide, a carboxylated copolymer of butadiene and acrylonitrile, a cellulose derivative, a vinylic polymer or mixtures of these. The fibrid may be made from polyamide 6, polyamide 66, polyamide 610, polyethylene terephthalate, polyester-containing copolymers, polyurethanes, elastomeric polymers, polyvinyl chloride, polymethylmethacrylate, copolymers of acrylonitrile, copolymers of butadiene, copolymers of styrene and cellulose. Numerous suitable solvents are also specified. The coagulant may include as a component a solvent for the polymer and the non-solvent medium may also include a solvent for the polymer. The layer may be formed on a woven textile backing or a felt.
Patent GB-153755-A (GB)
Abstract: 153,755. Corthesy, J. H., and Castelli, S. T. S. Oct. 17, 1919. Grates and fuel-holders.-In fire-grates having the form of a cage arranged to turn on an axis so that they may be rotated to bring fresh fuel charged on top of the incandescent fuel to a position beneath the latter, means are provided for admitting air to the centre of the fuel. In the form shown in Fig. 1, the air is supplied through a perforated central pipe u the ends of which form, tor are connected to, hollow trunnions on which the grate turns. In the modification shown in Fig. 2, a series of branch pipes w connected to a central pipe is employed; in a further modification, the pipes w are movable round the central pipe v so that they may lie on the surface of the incandescent fuel and supply air at the zone in which the incandescent and fresh fuel meet.
Patent GB-722937-A (GB)
Title: Improvements in and relating to the location of flaws in steel ropes and irregularities in metallic bodies
Inventor: ROSTON BENJAMIN
IPC: G01N27/90
Filed: 1952-06-19
Abstract: 722,937. Electric tests. COAL INDUSTRY (PATENTS), Ltd. June 18, 1953 [June 19, 1952], No. 15439/52. Class 37. Apparatus for testing for flaws in metallic bodies, e.g. wire ropes, wherein two search coils are inductively associated with the wire rope and connected in opposition to give no signal in the absence of flaws, is characterized in that the two search coils are separated by a distance approximately equal to one cycle length of a regular variation in the wire rope, so that regularly occurring variations do not produce a signal from the apparatus. As shown, two energizing coils F1, F2 and the two search coils S1, S2 and a balancing coil B are located in a former H, the distance between coils F1, S1 and F2, S2 being equal to one cycle length of a regular variation in wire rope R passing through the centre of former H. The energizing coils F1, F2 are fed from an oscillator O, and the search coils S2, S1 are connected in series opposition being initially balanced by coil B, so that their resultant output shown on meter I indicates the position and extent of irregularities in the wire rope. The test object may be magnetic when permeability variations are noted, or non-magnetic when conductivity variations are noted. In alternative arrangements the search coils need not be spaced by one cycle length, and auxiliary coupling coils produce a voltage which, when fed into the circuit, counterbalance signals produced by the regular variations. In this case only one search coil may be used.
Patent GB-130836-A (GB)
Title: Improvements in or relating to Lighters for Lighting Pipes, Cigarettes and Cigars, and for Lighting Purposes Generally.
IPC: F23Q2/14
Filed: 1918-09-25
Abstract: 130,836. King's Norton Metal Co., and Brownsdon, H. W. Sept. 25, 1918. Pocket igniters, frictional; lighting-torches, non-electric.- In that type of pyrophoric igniter in which a steel striker is normally in contact with absorbent material in a reservoir and in which sparks are produced by rubbing the striker on an external surface of pyrophoric material on the reservoir, the steel striker b is fixed internally or externally to a case a packed with absorbent cotton-wool c or the like, and having a protruding asbestos or like non-combustible wick d. The pyrophoric material f on the outside of the reservoir e is preferably formed with three exposed sides for use, and the absorbent material h in the reservoir, e.g. a tube of blotting paper, cottonwool, felt, or the like, is made to contact with the wick of the case, preferably by means of a coiled spring i. In one form, the case a, Fig. 3, is bullet-shaped and the reservoir e is shaped like a cartridge case. The closed end of the case may be inserted in the open end of the reservoir when the wick is ignited. The lighter may, however, be cylindrical and of flattened oval cross-section. In another form, the reservoir is shaped to resemble a match box and is fixed to the middle of a smokers' ash tray,. and the lower part of the reservoir may be formed with a compartment containing petrol or the like, which is fed to the packed reservoir by a wick. The open ends of the case and the reservoir may be provided with a tube or ferrule made of a good non-conductor of heat.
Patent GB-598107-A (GB)
Title: Improvements in or relating to jack screws particularly for aircraft cowls
IPC: F16F1/387
Filed: 1944-08-15
Abstract: 598,107. Resilient mountings. LEAR, Inc. Aug. 15, 1944, No. 15551. Convention date, July 2, 1943. [Class 108 (iii)] A flexible joint for connecting members for angular movement in a plane containing the axis of the joint, particularly for use in the screw jack device of Specification 563,929, comprises a mass of resilient material 33 bonded to inner and outer members 28, 31 of which one (the outer one in the form shown) is circular in cross-section while the other is non-circular. In the form shown the non-circular member 28 is flattened so that.its major axis is perpendicular to the plane of movement of the members connected, and the resilient mass 33 is formed with cavities 34 in the latter plane to facilitate its distortion.
Patent GB-1357131-A (GB)
Title: Pressurized liquid filtering apparatus
IPC: B01D29/23
Filed: 1971-05-18
Abstract: 1357131 Pressure filter for liquids GAF CORP 18 May 1971 [19 May 1970] 15665/71 Heading B1D A liquid filter comprises a vessel 12 having a lower outlet 14 and enclosing one or more filter bags 34, a cover 16 incorporating an inlet but being capable of hinging away from the vessel without need to disconnect external piping to allow access to the vessel interior. In Fig. 1 cover 16 is hinged at 18 to supporting brackets 20 and incorporates a passage 56 leading to inlet opening 68 from the opening 64 in fixed plate 54 through which liquid is supplied. A sealing ring 66 seals between plate 54 and passage 56 when the cover is closed, and bolts 80 then hold the cover down. Abutments 78 limit the closure of the cover, to avoid excessive compression of double ring seal 50, 52, and also locate bag-supporting basket 34 in the vessel. The bead 38 of bag 36 abuts surface 42 of the basket in use, and the basket and bag may be lifted out together. A plurality of bags in one vessel and bags (and baskets) of re-entrant form are mentioned as alternatives. In Fig. 2 (not shown) the cover is hinged to the vessel and the inlet passage involves two abutting elbows relatively rotatable about the same axis as the hinge.
Patent GB-693333-A (GB)
Title: Improvements in automatic pistols
IPC: F41A3/66
Filed: 1951-07-02
Abstract: 693,333. Automatic pistols. F. D. A. SOC. AR.L. July 2, 1951 [July 1, 1950; Feb. 10, 1951], No. 15666/51. Class 119 An automatic pistol comprises a receiver 1, a barrel 5 fixed thereto, a casing containing the firing mechanism controlled by a single trigger 31 both for single shot and for continuous firing, a handle 16 containing a magazine for 25 or more cartridges, and an inertia member 2, 3, having the breech-bolt connected thereto, the said inertia member being arranged to reciprocate from a cocking position to a firing position, being of substantially the same length as the pistol, and comprising a fore body 2 and a rear body 3 longitudinally spaced apart and connected by longitudinal spacing members 4. In the construction shown the receiver 1 and firing-mechanism housing 7 are of pressedsheet metal, the receiver being mounted in an annular bushing 8 at the front of the housing and having a lug 10 which fits in a recess in a block 11 on the handle 16. The barrel 5 passes through the bushing and has a threaded part 6 for engagement with a nut 13. A helical return spring 23 surrounds the barrel, has its rear end bearing against the breech ring 19 of the barrel, and bears at its forward end against the front part 2 of the inertia mass. Suitably guided side links 4 connect the part 2 with the rear part 3, and the latter carries the breech-bolt 24 which in turn carries the firing-pin and an extractor 27. The ejector 9 is fitted to the block 11. Firing mechanism. This mechanism includes a pivoted sear 37 for acting either on the front or rear face of the part 2, a trigger 31 fitted with two pivotally mounted sear-engaging levers 35, 36, and a change-fire device 44 adapted, according to its angular position of setting, to enable the firearm to fire single shots, to fire continuously, or to hold the sear in an upward position where it blocks either the forward or rearward position of the inertia mass according to the initial position of the latter. When set in this safety position a rounded portion of the device 44 prevents both of the levers 35, 36 from engaging the sear. In the "continuous fire" position the lever 35 alone is held depressed and.a flat on the device enables lever 36 to operate the sear and to hold the latter clear of the inertia mass as long as the trigger is pulled. In the "single-shot" position the lever 36 is held depressed by the device 44 and another flat on the device permits lever 35 to act on the sear; upon the forward movement of the inertia mass, in this case, the part 2 engages and depresses an extension 49 of the lever, thus disengaging the lever from the sear and thereby allowing the sear, under the action of its spring, to return into the path of part 2. The ends of the pivots of the pivoted parts extend through the housing 7 and are held in place by a slidable plate having a keyhole slot for each pivot; this plate is illustrated in Fig. 2 (not shown).