baber/WOPTO huggingface dataset:
Patent GB-270425-A (GB)
Title: Improvements in or relating to pipe connections
IPC: F16L41/12
Filed: 1926-02-10
Abstract: 270,425. Victaulic Co., Ltd., and Knupffer, M. Feb. 10, 1926. Branches, connecting to mains; cup-leather joints.-The inlet nipple 4 of a radiator is adapted to communicate with the main pipe 2 of the heating systemby means of a hole 2<a> drilled in said pipe, fluid-tightness being secured by means of a hollow packing ring 5 of flexible material, having inturned lips 5a sealed by fluid pressure, adapted to be held on the pipe 2 and provided with an opening, also having inturned lips 5<b>, to receive the nipple 4. The packing ring 5 is preferably provided with a two-part housing 7. Specifications 270,816. and 149,381 are referred to.
Patent GB-1072442-A (GB)
Title: Improved piston-ring unit
Inventor: CLOSE JOHN FREDERICK CAMPBELL
IPC: F16J15/32
Filed: 1966-01-28
Abstract: 1,072,442. Pistons. UNISEARCH Ltd. Jan. 28, 1966, No. 3954/66. Heading F2T. A piston end ring unit of elastomerie material comprises a body (1) and a piston ring formed by a collar (3) on a tubular extension (2) of the body. A piston rod (6) may be formed integral with the body (1). In use, the ring (3) is deformed to provide a sealing edge (8) in contact with the cylinder bore. An extension (2) and ring (3) may be provided on each end of the body.
Patent GB-555522-A (GB)
Title: Improvements in means for taking up slack in trailed flexible leads or cables
IPC: H02G11/02
Filed: 1942-03-25
Abstract: 555,522. Tensioning cables. SADLER, P., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 25, 1942, No. 3980. [Class 78 (ii)] Flexible electric cables extending between two relatively moving points are kept taut by spring tensioning of a bight of the cable located between two co-axial drums. One of the drums 1 is fixed to a casing base 4 by a stationery shaft 3, the other drum 2 being loosely mounted on the outer end of the shaft. Between the drums 1, 2 is disposed an arm 7 rotatable about the shaft 3 and having attached to it one end of a spiral spring 9, the other end of which is fixed to the shaft 3. The spring 9 is disposed inside a recess 2c in the drum 2, and the outer end of the arm 7 carries a pulley 8 the axis of which is in a plane cutting the shaft 3 at right angles. A fixed arm 10 supports a fairlead comprising two pulleys 11 which may be combined with a stricture to limit the amount of cable pulled out. As withdrawal takes place, the cable leaves one side of the rotating drum 2 and adds on to the other side after passing round the pulley 8 from the reservoir coiled in the opposite sense on the drum 1. In a modification the shaft 3 is fixed to the arm 7 and runs loose in the fixed drum 1. The shaft is constantly urged to rotate in the winding-on direction by a friction clutch the power member of which is coupled by reduction gearing to an electric motor. In a further form 'the clutch is omitted, and a spring- biassed switch introduced into the cable run for control by the tension thereof. When the cable is slack the switch energises the motor in the direction for winding-on the cable; when the tension assumes that of the taken-up state of the cable the current is cut off from the motor, and when the tension further increases, owing to rapid movement apart of the end points, the motor is switched on to rotate in reverse and assist the unwinding by turning the arm 7 in the appropriate direction.
Patent GB-247583-A (GB)
Title: Improvements in the manufacture and production of liquid or other hydrocarbons and derivatives thereof from coal and other like materials
IPC: C10G1/08
Filed: 1926-02-11
Abstract: 247,583. I. G. Farbenindustrie Akt.- Ges. Feb. 14, 1925, [Convention date]. Hydrogenation, destructive.-The treatment at a high temperature and a pressure of at least 50 atmospheres of carbonaceous solids with hydrogen or reducing gas containing hydrogen to produce liquid hydrocarbons is conducted in presence of molybdenum or its compounds e.g. molybdic acid ammonium molybdate. and molybdenum sulphide. Inert materials and other catalysts, e.g. iron, cobalt, aluminium hydroxide, calcium carbonate, and clay may also be present. Raw materials specified are coal, lignite, peat, and wood. Other gases specified are water-gas and mixtures of hydrogen with nitrogen, carbon dioxide, sulphuretted hydrogen, steam, or methane or other hydrocarbon gas. The hydrogen may be produced in the reaction vessel by the action of steam or carbon monoxide or hvdrocarbon or coal or the like. In an example, a mixture of 100 lb. of lignite with 1. lb of molybdic acid is subjected at 500‹ C. and 150 atmospheres pressure to the action of hydrogen. Specification 2306/14. [Class 1 (i), Chemical processes &c.], is referred to. In the Specification as open to inspection under Sect. 91 (3) (a) the use of pressure is optional. and ammonia, zinc oxide, magnesia, activated carbon, coke, and silica are also given as examples of other catalysts. This subject-matter does not appear in the Specification as accepted.
Patent GB-275098-A (GB)
Title: Exercising apparatus
IPC: A63B21/055
Filed: 1927-02-12
Abstract: 275,098. Noe, R. H. Feb. 12, 1927. Exercising-apparatus. - One or more elastic strips 1 are clamped by their ends to hand-grips 3 having flat clamping members 5, 8 drawn together by wing-nuts 11. The upper member 8 may be strengthened by a rib 10.
Patent GB-1502771-A (GB)
Title: Laminated glazing pane
IPC: E06B3/67
Filed: 1974-01-29
Abstract: 1502771 Double glazing GLAVERBEL-MECANIVER 23 Jan 1975 [29 Jan 1974 (2)] 04109/74 and 04111/74 Heading C1M [Also in Division B5] A laminated glazing pane used in a multiple glazing panel comprises two or more sheets of vitreous material of which successive facing surfaces are bonded together via an intervening layer of adhesive material, such that the measured value of the base-frequency (f) of the laminated pane when measured by a test, details of which are given, lies in the range 0À70f 0 #f#0À97f 0 , where f 0  is the notional base frequency obtained from the test. The intervening layer may be a self-sustaining sheet of plastics material, e.g. polyvinyl butyral or polyvinyl chloride, which may contain 30À5-35% by weight of a plasticizer, e.g. dioctyl sebacate. The glazing pane may be transparent or translucent, coloured or comprise vitreous sheets which have been tempered to increase strength or coated. The intervening layer may have a thickness of at most 1À0 mm. The pane may comprise at least two vitreous sheets of different thicknesses, e.g. having one sheet at least twice as thick as the other. The laminated pane may be used in a multiple glazing panel comprising a first vitreous pane 7 comprising a first vitreous sheet and, marginally held in spaced relation therewith, as a second pane, the laminate 8. The first pane may consist solely of the first vitreous sheet or may comprise that sheet together with one or more other plies or strata. The panes may be held in spaced relation in a frame at most 25 mm. apart preferably with the use of intervening spacer strips 9 glued or soldered to marginal face portions of the panes. Spacer element 13 may comprise a hollow aluminium sectional member 14 which may be glued by means of a double joint 15. The total thickness of the vitreous material in the laminated pane is preferably less than that of the first vitreous sheet.
Patent GB-621286-A (GB)
Title: Improvements in or relating to a grain drill feed
IPC: A01C7/12
Filed: 1947-02-13
Abstract: 621,286. Seed sowers. FERGUSON, Inc., H. Feb. 13, 1947, No. 4169. Convention date, Dec. 2, 1944. [Class 6(i)] A seed distributer comprises a hopper 1 feeding seed to a rotary, internally-fluted cylinder 16 which conveys the seed to a discharge. throat 41 adjacent to which is positioned a shoulder 45 extending radially inwardly of the flutes. Seed passes through holes 3 in the hopper and falls into a series of cups 4, each of which comprises castings 8 and 9 bolted below the seed box. The casting 9 has a central aperture in which the fluted cylinder is rotatably mounted. The cylinder is open-ended and accommodates a disc 25 mounted on a square driving shaft 32. By moving the shaft the disc may be moved axially of the cylinder to approach the casting 8 and thus reduce the capacity of the seed cup. The casting 8 is curved to define a throat 41 and terminates in a shoulder 45 disposed radially of the fluted cylinder. The seed is expelled through the opening 68 between the disc 25 and the shoulder 45, and falls into drill tubes 6. An agitator, provided, within the hopper, comprises arms 52 on a rotating shaft 51, which shaft also carries eccentrics 58 on which are loosely. mounted,the looped ends of rods .65. Rotation of the shaft reciprocates the rods 65 and assists the feeding of. seed to the cups.
Patent GB-175889-A (GB)
Title: Improvements in oil circulation indicators for use in connection with internal combustion engines and the like
IPC: F16N29/00
Filed: 1921-02-04
Abstract: 175,889. Rotherham, K., and Eyles, A. E. Feb. 4, 1921. Indicating in connection with lubricating.-The body A of am oil-circulating indicator of the spring- pressed plunger type projects through the dashbcard Z of a motor-vehicle and is clamped thereto by two nuts C, D screwing on the body A. The free end of the rod B of the plunger B<2> carries a knob B<6>. The outer nut C and the knob B' are shaped so as to present a continuous surface which lies almost flush with the dashboard when the device is at rest. Oil enters at E, and a drain F is provided for oil which may leak past the plunger.
Patent GB-163436-A (GB)
Title: Improvements in or relating to pumps and the like for raising and forcing fluids, semi-fluids and other substances
IPC: F04B1/02
Filed: 1920-02-12
Abstract: 163,436. Brown, F. A. J. Feb. 12, 1920. Air vessels; double-acting piston pumps; pumps for gritty &c. liquids; pumps for viscous liquids; materials, special; valves, arrangement of; valves, facilitating removal of.-A pump for liquids, semi-liquids such as cement and tar, and for other substances, comprises one or more barrels e, e<1> and pistons f, f<1> operated by a lever h. The barrels are mounted on a casing a divided into two compartments b, c. These compartments are divided by vertical walls a<1> into three sections b<2>, b<3>, b<4> and c<2>, c<3>, c<4> respectively. The sections c<3>. c<4> communicate with the barrels e, e<1> and with the sections b<2> through suction valves o, o<1>; and the sections b<3>, b<4> communicate with the section c<2> through delivery valves p, p<1>. During the suction stroke the liquid enters the chamber b<2> through the inlet port b<1> and passes up through the valves o, o<1> into the barrels. During the delivery stroke, the liquid passes through openings n, n<1> into the chambers b<3>, b<4>, and then through the valves p, p<1> into the chamber c<2> and outlet c<1>. The suction valves are heavier and/or larger than the delivery valves and are made of a heavy material, such as steel, and the delivery valves are made of a light material, such as wood, or may consist of hollow metal balls. The valves are controlled by domed caps q held in place by screws u in pivoted straps r. The delivery chamber c<2> may communicate with an air vessel d provided with a relief valve x.
Patent GB-1218368-A (GB)
Title: Strain wave gearing elements
IPC: B23Q27/00
Filed: 1968-01-26
Abstract: 1,218,368. Toothed and friction gearing. VISH MACHINO - ELEKTROTECHNITCHESKI INSTITUT. 26 Jan., 1968 [28 Jan., 1967], No. 4338/68. Heading F2Q. [Also in Division H2] A deformable strain wave type gear includes a first element having a contact surface which is a ruled surface generated by moving a straight line in a first locus, and a second element having a contact surface which is an envelope generated by moving said ruled surface in a second locus about a principal axis, with its axis skew relative to the principal axis and at a fixed distance therefrom. As shown, an electric motor having a stator 2 and an armature 1 drives an output shaft 8 via a strain wave reduction gear. Frustoconical rollers 6 on the armature press straight or helical teeth 4 on a deformable member 3 (the second element) into mesh with bevel teeth 4<SP>1</SP> on fixed rings 5 (the first element. The member 3 is secured to the output shaft 8 and the rings 5 are axially adjustable. The teeth 4, 4<SP>1</SP> may be of triangular or sinusoidal profile. In a modification, the gear elements engage frictionally. The ruled surface may be a cone, a cylinder, or a hyperboloid.
Patent GB-1090962-A (GB)
Title: Inflatable structures
Inventor: MARTIN ERWIN HERBERT ERHARD
IPC: F02C7/042
Filed: 1964-02-01
Abstract: 1,090,962. Inflatable aircraft engine intake. DUNLOP CO. Ltd. Jan. 18, 1965 [Feb. 1, 1964], No. 4366/64. Heading B7G. [Also in Division F1] An aircraft engine air intake, e.g. for a jet lift engine, comprises an inflatable envelope 4 supported on one or more inflatable tubes. In one embodiment a single toroidal inflatable tube 5 is used, the inflation pressure increasing its diameter to extend the envelope from an annular pocket 3 in the fuselage radially outwardly to the position shown. The inflated shape of the envelope is determined by the shape of inextensible webs 11 and the inflated diameter of the tube is limited by circumferential cords 9 and by plies 7, 8, the bias angle of whose cords reduces on inflation from an initial 78 degrees to a stable 58 degrees 44 minutes. The inflation pressures may be 5 p.s.i. for the envelope and 30 p.s.i. for the tube. In another embodiment (Fig. 5, not shown) the envelope 4 is attached to inflatable U-tubes (30), the limbs (33, 34) of which are connected by webs (35), and the envelopes and tubes are retracted into the pocket (3) by resilient bands (36), which may be inclined in the circumferential direction so that the tubes overlap when deflated. In a further embodiment (Fig. 4, not shown) telescoping metal tubes (21, 22) connected by plates (23) are extended by air pressure and retracted by return springs. The envelope is fixed to webs (25) and partially covered by curved plates (24) fixed to the plates (23) and arranged to cover the pocket (3) when the envelope is deflated. In all embodiments retraction may be assisted by the application of a vacuum.
Patent GB-720305-A (GB)
Title: Improvements in colour television
IPC: H04N11/14
Filed: 1952-02-19
Abstract: 720,305. Colour television. RADIO CORPORATION OF AMERICA. Feb. 19, 1952 [Feb. 27, 1951], No. 4407/52. Drawings to Specification. Class 40 (3). At the transmitter of a colour television system three cameras derive signals corresponding respectively to the red component, the blue component and the luminosity of an image and these signals are then applied directly to modulators where they are modulated with differently phased sub-carrier waves of a given frequency. The phases of the waves and the gains of the modulators are selected so that the resultant combined signal from the modulators is a wave having three differently phased components which correspond to the red, green and blue aspects of the image. The invention avoids the necessity of providing three colour cameras or of adding the two colour components and subtracting them from the luminosity signal to derive the third colour before modulation. In a first arrangement the luminosity signal is of the form L=0.600G+ 0.333R+0.067B and the phases and gains of the modulators are selected to produce a subcarrier wave of the form 692G #0‹+0.667R #150‹+0.352B #251‹. In a second arrangement the same luminosity signal is employed but the sub-carrier wave is arranged to be of the symmetrical form 1.0G #‹+1.0R #120‹+ 1.OB #240‹. In a third arrangement the luminosity signal is panchromatic, i.e. of the form 0.333R+0.333G+0.3333B and the subcarrier wave is again arranged to be of the form 1.0G #0‹+1.0R #120‹+1.0B #240‹. The transmitter general assembly is conventional and includes provision for by-passing a luminosity signal around the modulators and the normal arrangement for injecting a synchronizing " burst " at the sub-carrier frequency into the transmitted signal. At the receiver for the system the sub-carrier portion of the received signal is applied to three demodulators where it is heterodyned with differently phased waves at the sub-carrier frequency, the phases and demodulator gains being selected so that the output from each demodulator corresponds to a different one of the colours minus the luminosity (L) of the image. The particular embodiment disclosed operates with a subcarrier signal of the form 0.935B #94.1‹+ 0.846G #225‹+0.745R #333.5‹ to derive the signals of the form R-L, B-L and G-L. The particular form of sub-carrier wave is chosen so that the heterodyning waves at two of the demodulators are 90 degrees from each other. The general assembly of the receiver is conventional, the colour minus luminosity signal being applied to the cathodes of colour cathode-ray tubes and a luminosity signal being by-passed around the demodulators and applied to the grids of all the tubes. The oscillator providing the differently phased heterodyning waves is synchronized by the sub-carrier bursts.
Patent GB-1404403-A (GB)
Title: Variable stroke metering pump
IPC: F04B9/04
Filed: 1973-01-30
Abstract: 1404403 Reciprocating pumps IWAKI CO Ltd 30 Jan 1973 [31 Jan 1972] 4507/73 Heading F1A [Also in Division F2] A variable-stroke pump has a piston 41 reciprocated by an adjustable eccentric mechanism comprising an eccentric member 26 fixed to a drive-shaft 20 and an eccentric ring 27 coupled to member 26 either by a ball 29 engaging a helical groove 28, or by helical splines and grooves, Fig. 7 (not shown), shaft 20 being axially movable by a hand wheel or electric servomotor, Figs. 2 and 8 (not shown), acting via worm 63, wheel 60, and rod 52, to cause relative rotation between member 26 and ring 27 and thereby change the eccentricity. Shaft 20 is rotated by a motor acting via worm 11, wheel 15 and key 21, a connecting rod 34 connecting piston 41 to eccentric ring 27. A screw pump 73 driven by the shaft of worm 11  draws lubricant from housing 10 and supplies it via pipe 74 to chamber 24. The stroke adjusting mechanism includes a stroke-setting indicator (67), Fig. 2 (not shown).
Patent GB-894803-A (GB)
Title: Bonded non-woven fibrous materials
Inventor: FRASER IAIN ANDREW MACKAY
IPC: D04H1/645
Filed: 1960-02-09
Abstract: A copolymer of 25 to 70% by weight of methyl methacrylate and/or styrene units with butadiene-1, 3, containing 0,05 to 13,5% by weight of free carboxyl groups and having a gel content p  of at least 50%, may be prepared by polymerization in aqueous emulsion.  The reaction mixture may comprise a continuous aqueous phase containing in solution an emulsifying agent and preferably a polymerization catalyst, and a discontinuous monomer phase dispersed in the aqueous phase.  Emulsifying agents specified are sodium dodecyl benzene sulphonate, sodium or potassium oleate, stearate or palmitate, or the hydrogenated and dehydrogenated rosin soaps.  Polymerization catalysts specified are hydrogen peroxide, or the alkali metal or ammonium persulphates, or the organic peroxides and hydroperoxides. Polymerization modifiers may also be used and those specified are di(sec-butyl) disulphide, di(2 methyl butyl) disulphide, and dialkyl zanthogen disulphides, diorthodinitrophenyl disulphide, or dodecyl mercaptan. Alternatively, the copolymer may be prepared by adding a small amount of a monomer having at least two <FORM:0894803/IV (a)/1> groups per molecule, e.g. divinyl benzene or glycol dimethacrylate. The carboxyl groups may be introduced into the copolymer by polymerizing butadiene-1, 3 and methyl methacrylate and/or styrene together with an ethylenically unsaturated carboxylic acid; acids specified are acrylic acid, methacrylic acid, ethacrylic acid, cinnamic acid, maleic acid, and fumaric acid.  Alternatively, the carboxyl groups may be introduced by hydrolysing some of the ester groups in the copolymer where methyl methacrylate is a component during or after polymerization. Hydrolysing agents specified are hydrochloric acid, sulphuric acid, dichloracetic acid, sodium hydroxide and potassium hydroxide; quaternary ammonium bases; and various primary, secondary and tertiary amines.  The copolymers may be used as bonding agents for natural and synthetic fibres.  It is preferably to cure the bonding agent, for example with zinc oxide, or the metal salts of an amphoteric hydroxide, e.g. sodium aluminate, or a metal borate or silicate.  The copolymer may also be cured by means of the water-dispersible precondensate products of aldehydes with for example, phenols, substituted phenols, e.g. alkyl phenols, urea, thiourea, dicyanamide and melamine, particularly by means of the pre-condensate of melamine, urea, or ethylene urea with formaldehyde.
Patent GB-285385-A (GB)
Title: Improvements in weighing machines
IPC: G01G23/08
Filed: 1928-02-14
Abstract: 285,385. Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen. Feb. 14, 1927, [Convention date], Vibration, preventing and neutralizing.-Dashpots of the kind in which a piston moves in a liquid are connected to the moving part of a weighing machine by a pin connection having an elastic device adapted to take up slack. The pin 2, Fig. 4, is kept in contact with the lower part of the hole in the upper end of the piston rod 1 by a spring 3, the force exerted by the spring being approximately equal to the weight of the rod and piston. The piston is connected to a sleeve 5 which screws on to the rod 1, carrying the plate 1g at its lower end. The openings in the piston 4 are more or less closed by rotation of the piston to adjust the resistance of the dashpot. In another construction, shown in Fig, 3, helical springs 3 connect the piston rod 1 and pin 2.
Patent GB-865873-A (GB)
Title: The preparation of dihydrodesoxystreptomycin
Filed: 1959-02-10
Abstract: 865,873. Dihydro-desoxy streptomycin prepared electrolytically. SOC. DES USINES CHIMIQUES RHONE-POULENC. Feb. 10, 1959 [Feb. 25, 1958], No. 4613/59. Class 41. Dihydro-desoxy streptomycin is prepared by electrolytic reduction of an acid solution of streptomycin maintained at pH 0.5 to 3. Preferably a porous membrane-type cell is used, with streptomycin sulphate solution as catholyte, and 5 to 50% H 2 SO 4  as anolyte. Lead electrodes are used having a peroxidized surface. Electrolysis is effected at 4-12 volts and at normal temperatures up to 35<SP>o</SP> C. After several hours, streptomycin is completely converted, and is extracted by treating with barium carbonate, filtering and the filtrate then treated with acetone, producing a precipitate of the bi-carbanate. This is washed with acetone and dried, or it may be converted to the sulphate.