baber/WOPTO huggingface dataset:
Patent GB-577560-A (GB)
Title: Improvements in apparatus for delivering fuel under pressure to the induction systemof an internal combustion engine
IPC: F02D9/00
Filed: 1945-01-23
Abstract: 577,560. Fuel injection to induction systems. HOBSON (AIRCRAFT & MOTOR) COMPONENTS, Ltd., H. M., and MIDDLETON, S. N. Jan. 23, 1945, No. 1835. [Classes 7 (iii) and 7 (vi)] Fuel is discharged into the induction pipe through a number of orifices each controlled by a plate spring covering the orifice and having one fixed and one free end, the effective area of the orifices being regulated by the displacement of the plate springs by fuel pressure. The fuel is supplied by an engine-driven pump through a metering orifice the fuel flow being regulated in accordance with engine speed, induction pipe pressure, induction temperature and exhaust pressure as described in Specification. 564,303 or 566,323. As shown in Figs. 2 and 3 the fuel is supplied through an inlet 49 to an annular chamber 48 arranged around the shaft 45 of a supercharger and having outlet orifices 50 formed in the upper flange 41 of a Z-shaped ring 40 secured to the supercharger casing. The .orifices are covered by an annular spring plate 51 the inner periphery of which is fixed by rolling over the inner edge 52 of the flange 41. The plate is divided by keyhole slots 54 into tongues 53 each covering one of the orifices and being deflected outwards by fuel pressure to enable fuel to be delivered into the air stream.
Patent GB-484740-A (GB)
Title: Improvements in and relating to cones, bobbins, tubes and the like for textile yarns
IPC: B65H75/26
Filed: 1937-01-22
Abstract: 484,740. Bobbins &c. TAYLOR, J. S. Jan. 22, 1937, No. 1895. [Class 120 (iii)] A cone, bobbin, tube, &c. for textile yarns has a whole or part cover made by the viscose process, the surface to be covered being wound with a helix, e.g. a length of twine or the like which is held in place by the cover as it shrinks and hardens and forms grooves in the covering which assist in holding the first layers of yarn wound on to the bobbin. The cover is applied to the bobbin &c. while wet and soft and after being smoothed thereon is hotdried ; the cover may be coloured or marked to denote the count, &c. of the yarn wound upon it.
Patent GB-859178-A (GB)
Title: A divided wheel rim for tyres
IPC: B60B25/18
Filed: 1958-01-21
Abstract: 859,178. Divided wheel rims. HRDLICKA, J. Jan. 21, 1958 [Jan. 23, 1957], No. 2020/58. Class 144 (2). In a divided wheel rim comprising an endless detachable wedge-section tapered bead-seating ring 3 and a separate endless detachable beadretaining flange 11 both retained on a rim base 1 by a split locking-ring 6 engaged in a gutter 5 at the edge of the rim base 1, the wedge-section ring 3 has a conical radially inner surface to seat on a complementarily conical surface 2 of the rim base 1 tapering towards the gutter 5, and the locking-ring 6 abuts both the ring 3 and flange 11 and reacts against the axial and radial surfaces respectively of the axially outer radial wall of the gutter 5. As shown, the wedge ring 3 has a conical end-surface 8 on which the locking-ring bears. For use with tubeless tyres, the wedge-ring 3 may be made wholly of, or surfaced with, rubber or the like, and for use with tubed tyres the ring 3 may be split.
Patent GB-1375168-A (GB)
IPC: A61B5/00
Filed: 1972-04-17
Abstract: 1375168 Sight testing P M GARTON 17 April 1972 [15 Jan 1971] 2021/71 Heading G2J Visual acuity is tested by displaying over a field of view a pattern containing a plurality of spaced pattern elements, moving the pattern across the field of view in a direction in which the elements are spaced, increasing the number of pattern elements per unit length of the field measured in the direction, and recording or indicating a quantity equal to, or related to, the number of pattern elements per unit length when opto-kinetic nystagmus is observed to cease on the part of a subject viewing the pattern. The pattern may be alternate bars of light and dark, or a chequered pattern. This may be viewed directly or projected on to a screen. The pattern may be formed on a film, with decreasing spacing of elements. The film may also carry minerals indicating the number of elements per unit length of the adjacent area of the pattern. Alternatively, the elements may be detected and counted. An area of the film may be oscillated across the field of view, and the area of the film changed periodically.
Patent GB-1495333-A (GB)
Title: Brake anti-locking system
IPC: B60T8/94
Filed: 1975-01-17
Abstract: 1495333 Anti-skid braking systems ROBERT BOSCH GmbH 17 Jan 1975 [18 Jan 1974] 2056/75 Heading F2F An anti-skid pneumatic braking system has a braking valve 1 coupled by a line 7 to a valve assembly 8 including two diaphragm operated valves 34, 41 and inlet and outlet anti-skid solenoid valves 17, 18 operable together to selectively connect a pressure inlet 36 to a wheel cylinder 10 or, on skidding, to connect the cylinder 10 to a venting outlet 53, the braking valve including a supplementary valve 11 which on further drivers force supplies, through a line 13, a safety valve 15 which closes the venting outlet. The valve 15 includes a safety switch 28 for de-energising the inlet solenoid valve 17 to open the valve 19/21. On normal braking, the chamber 29 is  pressurized to displace the diaphragms outwards thus opening the valve 52 to pressurize the chamber 37 and the cylinder 10 and closing the outlet valve 60. On releasing the braking valve 1 the chamber 29 is unpressurized and the diaphragms are displaced inwards to close the valve 52 and open the valve 60 to connect the cylinder 10 through a pipe 38 with the chamber 39 and the venting outlet 53. On skidding the two solenoid valves are energized and displaced connecting the diaphragm chamber 29 through the valve 18, and a passage 49 to the venting outlet 53 to thus displace the diaphragm valves inwards to connect the cylinder 10 to the venting outlet. On completion of a complete wheel revolution the control device switches off de-energizing the solenoid values to re-apply the brakes. In a modification (Fig. 2, not shown), on sufficient force on the braking valve 1, air form a second higher pressure source is supplied to the safety valve in which the return spring is stiff enough not to be displaced by the normal braking pressure.
Patent GB-140377-A (GB)
Title: Improvements in or relating to change-speed gear
IPC: F16H61/664
Filed: 1920-01-22
Abstract: 140,377. Prat, G. J. March 19, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Variable-speed gearing.-Gears a, c, Fig. 2, on driving and driven shafts b, d present annular surfaces of semicircular section to connecting- gears e, which are adapted to be tilted to vary the speed of transmission. Friction or toothed gearing may be used. In the former case, the gears e may have pneumatic tyres. Spindles i, Fig. 3, supporting the gears e are adapted to be turned together by a rack l. It is stated that, if springs tend to turn the spindles i in one direction, the gearing becomes automatically variable with the load.
Patent GB-1333660-A (GB)
Title: Apparatus for treating grain with a liquid preservative
IPC: A01C1/08
Filed: 1971-01-15
Abstract: 1333660 Preserving grain H W DREYER [trading as HEINRICH WILHELM DREYER] 15 Jan 1971 [20 Jan 1970 27 April 1970] 2165/71 Heading A2D [Also in Division B1] Apparatus for treating grain with a liquid preservative, e.g. propionic acid, comrpises a conveyer 2, e.g. of worm type, for withdrawing grain from a container 1, a pump 8 driven by the conveyer or by other means, for delivering preservative from a tank 11 to one or more spray nozzles 5, and a return line 17 to the tank with valve means 19 to regulate the throughput of the nozzle(s). As shown, one of two nozzles 5 may be shut off by a valve 7, and the valve means 19 is an adjostable, pressure-reducing valve. A modification employs a single nozzle to which the return line, incorporating a quantity regulating valve, is directly connected. The apparatus may be attached to a combine harvester.
Patent GB-1485587-A (GB)
Title: Process of producing a foamed thermoplastics resin articl
IPC: B29C48/06
Filed: 1975-01-17
Abstract: 1485587 Foamed extruded thermoplastic articles FURAKAWA ELECTRIC CO Ltd 17 Jan 1975 [22 Jan 1974 8 Oct 1974] 2208/75 Heading C3C [Also in Divisions B4-B5] A pressurized gas foaming agent, e.g. Ne, Ar, He, or N 2 , is injected into thermoplastics material at a location along a screw extruder barrel, by delivering the gas to the location at a constant flow rate and ensuring that the pressure of the gas being injected is responsive to fluctuations in extrusion pressure of the thermoplastics at the injection location, so that the amount of blowing agent injected remains constant. The delivery and injection of the gas is effected by apparatus comprising means maintaining a constant rate of gas flow, which is connected to the injection location by a gas flow passage in which the pressure ofthe gas is made sufficiently responsive by ensuring that the rate of flow of the gas per minute, at N.T.P., is more than 12À5 times, and preferably more than 50 times, the volume of the gas flow passage. In the Fig. 1 embodiment, the gas is delivered to an extruder barrel gas injection port 32 from a gas cylinder 34, via an output pressure self regulating valve 36, a compressor 38, an output pressure self regulating valve 40, and a means 42 maintaining a constant gas flow rate into the gas passage connecting to the port 32. The means 42 comprises an orifice across which the ratio of the resin pressure at the location of injection to that of the upstream gas pressure (P2 : P1) is maintained less than the critical pressure ratio of the gas, which thereby flows through the orifice at supersonic velocity, and thus at a rate which depends on P1 and is independent of P2. In the Fig. 3 embodiment, the constant flow rate is maintained by a flow rate regulating valve 60, upstream and downstream of which the pressures are maintained constant respectively by an output pressure self regulating valve 62 and an input pressure self regulating valve 66. The gas injection port comprises a spring loaded ball check valve. The extruder barrel is provided with a heater (not shown) and the embodiments relate to applying the thermoplastics foams as a sheathing to an electrical conductor 12. The thermoplastics may comprise polyethylene, polypropylene, polystyrene, ethylenevinylacetate and ionomer resins. The examples relate to copper wire sheathed with low or high density polyethylene foamed by nitrogen, with measured electrostatic capacities being given.
Patent GB-1401413-A (GB)
Title: Water-soluble trisazo dyestuffs derived from 4,4-diamino- benzanilide
IPC: C09B35/46
Filed: 1974-01-17
Abstract: 1401413 Water-soluble trisazo dyestuffs from 4,4<SP>1</SP>-diamino-benzanilide PRODUITS CHI. MIQUES UGINE KUHLMANN 17 Jan 1974 [18 Jan 1973] 02234/74 Heading C4P Novel trisazo dyestuffs of the formula (wherein n is 1 or 2, A is the residue of a diazotizable primary amine of the benzene series in which any substituents are halogen atoms or nitro, hydroxy, alkyl, alkoxy, carboxy or sulpho groups; and E is the residue of a naphthalene coupling component) are prepared by coupling the tetrazo derivative from one mole of 4,4<SP>1</SP>- diamino-benzanilide in acid medium with one mole of an appropriate amino-naphthol mono- or di-sulphonic acid, then coupling the resulting compound with the diazo derivative of one mole of an amine A-NH 2  in alkaline medium and finally coupling the resulting compound in alkaline medium with one mole of a coupling component E-H. The dyestuffs are useful for the coloration of natural fibres, particularly for cellulosic fibres and also for paper and animal fibres such as wool, silk and leather.
Patent GB-524177-A (GB)
Title: Improvements in boxes or cartons
IPC: B65D5/22
Filed: 1939-01-24
Abstract: 524,177. Cartons &c. DARTON, GIBBS, & CO., Ltd., R., and STEVENSON, B. Jan. 24, 1939, No. 2378. [Class 18] A box or carton with a double wall 2, 3 has the inner flap 3 provided with tongues 8 which take in slits in the bottom 1 in such a way that the tendency of the flap 3 to spring outwards from flap 2 presses the tongues further into the slots.
Patent GB-914213-A (GB)
Title: Squeeze bottle dispenser
IPC: A47K5/06
Filed: 1961-01-20
Abstract: 914,213. Dispensing liquids. STERLING DRUG Inc. Jan. 20, 1961 [Oct. 27, 1960], No. 2449/61. Class 116. Apparatus for dispensing a liquid, e.g. a skin-cleaning liquid for surgical use, comprises a compressible bottle 28 containing the liquid and held inverted in a bracket 30 affixed to a wall 10. The liquid is dispensed by depressing a pedal 78 which first removes the bottle cap 36 by actuating a push-rod 74 to raise a block 70 connected to a pivoted lever 66, 60 having fingers 54, 58 engaging a flange 56 on the cap 36, and subsequently causes a rubber bumper 72 carried by the block 70 to engage and squeeze the bottle 28 to dispense liquid therefrom. When the foot is removed from the pedal 78 a spring 80 restores the apparatus to its initial condition.
Patent GB-732666-A (GB)
Title: Improvements in and relating to spinning mules
Inventor: CHAMBERLAIN NORMAN HENRY
IPC: D01H3/06
Filed: 1952-01-30
Abstract: 732,666. Spinning-mules. T. M. M. (RESEARCH), Ltd. Jan. 30, 1953 [Jan. 30, 1952 ; Feb. 21, 1952 ; Oct. 14, 1952], Nos. 2529/52, 4646/52 and 25729/52. Drawings to Specification. Class 120(2). [Also in Group XXXV]  A spinning mule having no quadrant mechanism and in which the spindle speed during winding is controlled mainly or solely by the movements of the counterfaller or an equivalent member is provided with mechanism that is operative during each inward run of the carriage under the control of the counterfaller or equivalent member to vary the spindle speed to obtain an even tension in the yarns and comprises an electromagnetic slip coupling excited by voltages from an electrical circuit controlled by a variable resistance coupled to the counterfaller or its equivalent. The subject-matter of the Complete Specification is included in that of Specification 732,665. According to the second Provisional Specification variations in winding speed may be obtained by employing a variable speed motor.
Patent GB-1533212-A (GB)
Title: Variable displacement compressor
IPC: F04B27/18
Filed: 1977-01-21
Abstract: 1533212 Fluid-pressure servomotor systems BORG WARNER CORP 21 Jan 1977 [6 Feb 1976] 02572/77 Heading G3P [Also in Division F1] In a compressor having a plurality of pistons 56 each reciprocable in a respective cylinder 10 by a non-rotatable wobble plate C, the pressure occurring in the sealed crank-case 40 due to gas blowing past the pistons is controlled by valves 220, 240 in a passage (218, 208), 232, 210, 252, 212, connecting the crank-case 40 to a suction chamber 147, the crank-case pressure acting on the undersides of the pistons thereby to determine the inclination of the wobble plate. The valve 240 is responsive to suction chamber pressure, increase in suction pressure collapsing a bellows 242 progressively to open the part 210 so that the crank-case pressure falls and the wobble plate automatically tilts to increase the stroke of the pistons. Valve 220 is solenoid operated and is either fully open or closed, the latter position causing the crank-case pressure to rise and move the wobble plate to its zero stroke position determined by a stop 130. Details of the cylinder head and valving refer to Figs. 2, 9, 13 and 14 (not shown); of the wobble and drive plate Fig. 8 and 18-21, (not shown); of the lubrication system, Fig. 22 (not shown).
Patent GB-498113-A (GB)
Title: Improvements in or relating to the synchronisation of clocks
IPC: G04C11/08
Filed: 1938-01-28
Abstract: 498,113. Electric clocks. JUNGHANS AKT.-GES., GEB. Jan. 28, 1938, No. 2783. Convention date, Feb. 9, 1937. [Class 139] A method of continuously synchronizing a balance wheel g with a standard oscillation generator (a synchronous motor) consists in altering the effective length of the hairspring k, according to the difference between the rates of oscillation of hairspring and standard, by a regulator d, d<2> controlled in synchronism with the standard rate of oscillation, the outer end of the hairspring having a fixed point m of attachment. Such synchronization is also applied to a pendulum. The hairspring k is attached at its inner end to a collet l on the staff h of the balance wheel g coacting with the escape lever i. n are the normal curb pins. A fork d2 embracing the outer coil of the hairspring is on a lever d, d<1> rocked about pivot e by a pin c and an eccentric disc b on a shaft a continuously rotated by a synchronous electric motor ; which latter also winds the mainspring of the movement. The two points of the fork d<2> touch the hairspring during a certain part of each oscillation. If the hairspring varies from synchronism, the times at which the points d2 touch the spring alter the effective length thereof to correct it. In a modification, Fig. 2 (not shown), a second hairspring on staff h, identical with the hairspring, is provided for coaction with the fork d<2>. In another modification, Fig. 3, the eccentric disc b oscillates a lever o about a pivot p, this lever carrying a pin q which rubs along the inner face of the outer coil of the hairspring k. For synchronizing a pendulum, Fig. 4, the lever o oscillated by disc b rubs up and down the suspension spring t of the pendulum.
Patent GB-961041-A (GB)
Title: Method for producing secondary recrystallization grain of cube texture in silicon steel sheet
IPC: C22C38/02
Filed: 1961-01-24
Abstract: A method of producing a cube-oriented silicon steel sheet having a good orientation and low iron core loss comprises providing an intermediate gauge silicon steel sheet containing 2.0-4.0% silicon, 0.010-0.045% acid soluble aluminium and the rest iron and consisting of recrystallization grains in the (100) [001] orientation, said acid-soluble aluminium consisting of more than 5% aluminium nitride, cold rolling said intermediate gauge silicon steel sheet in a direction substantially parallel to the [001] direction to reduce the thickness by 50-80%, and thereafter subjecting the thus cold rolled steel sheet to an anneal at a temperature in the range of 1000-1300 DEG C. in a neutral or reducing atmosphere.  The intermediate gauge silicon steel sheet is prepared from a hot rolled silicon steel stock containing 2-4% silicon and 0.010-0.050% aluminium by cold rolling the stock in one direction with a reduction of 30 to 60% in thickness, cold rolling in the other crossing direction thereto within a deviation of \sB20 DEG  with a reduction of 20 to 50% in thickness and thereafter subjecting the rolled sheet to a decarburizing anneal within a temperature range of 850-1200  DEG C. for a period of 10 minutes followed by an intermediate anneal in an atmosphere of H2 containing 50% N2 at the maximum holding temperature of 1150  DEG C.  The intermediate gauge sheet is cold rolled in the [001] direction with a reduction of 72% to the final gauge and finally subjected to a box anneal at the highest holding temperature of 1200  DEG C. for a period of 20 hours in a neutral or reducing atmosphere. Specific examples of the method are given in the Specification.  Specification 930,497 is referred to.
Patent GB-323138-A (GB)
Title: Improvements in and relating to objectives suitable for photographic purposes
IPC: G02B13/00
Filed: 1929-01-28
Abstract: 323,138. Hasselkus, J. W., and Richmond, G. A. Jan. 28, 1929. Lenses. - Photographic objectives of the kind having front and back combinations of lenses each consisting of a negative doublet and a single lens, have the negative doublet composed of a negative, meniscus lens and a positive meniscus lens, the negative meniscus being of a higher refracture index than the collective meniscus and disposed nearer to the diaphragm. The single positive lens is arranged with an intervening air space on the side of the doublet remote from the diaphragm with the surface of greater radius towards the doublet. The focal length of the front combination is approximately double that of the back combination, and the focal length of the front negative doublet is approximately half that of the back negative doublet. The objectives have a large aperture and angle of view and a high degree of correction. Numerical data are given in the Specification for an objective with an aperture of F/1.9 and a field of 50‹, corrected for spherical, zonal, chromatic, and comatic aberrations.
Patent GB-620909-A (GB)
Title: Improvements relating to clothes drying or airing apparatus
IPC: D06F73/00
Filed: 1947-01-30
Abstract: 620,909. Clothes-airers. BRITISH THOMSONHOUSTON CO., Ltd., and WILLIAMS, G. A. Jan. 30, 1947, No. 2929. [Class 52 (v)] The casing 2 of a convection heater carries a tubular stand 4 in which are housed rack arms 6 which are projected radially through slots in the head of the tube 4 on raising a plate 5 to which the lower ends of the arms 6 are hinged. The tube 4 is preferably housed telescopically in the body of the heater casing.
Patent GB-813914-A (GB)
Title: Improvements in or relating to the casting of metals
Inventor: PURSALL FRANCIS WALTER
IPC: B22C1/02
Filed: 1956-01-30
Abstract: 813,914. Moulding processes. FOUNDRY SERVICES Ltd. Jan. 9, 1957 [Jan. 30, 1956], No. 2945/56. Class 83 (1). In the production of cores and moulds, a mixture of moulding sand, sodium silicate and, as a breakdown additive, carbon having an average particle size not greater than 50 microns, is gas-hardened, as by CO 2 , The carbon is in the form of carbon black or coal dust and forms 0.3 to 1 per cent by weight of the mixture. Dextrin may be added. Specifications 705,240, 738,981 and 782,205 are referred to.
Patent GB-1039032-A (GB)
Title: Window, door and like structures
Inventor: OAKES THOMAS FRANCIS
IPC: E06B7/23
Filed: 1964-01-23
Abstract: 1,039,032. Pivotable windows. WILIAMS & WILLIAMS Ltd. Jan. 22, 1965 [Jan. 23, 1964; March 24, 1964], Nos. 3046/64 and 12432/64. Heading E1J. In a pivotable window in which the main and pivotable frames 1, 3 have flanges 1A, 3A parallel to the planes of the frames and the edges of which confront or are adjacent each other in the closed position of the movable frame, an intermediate member 4 is arranged to extend in the rear of and between said flanges and has a base part having projecting therefrom towards the flanges two spaced longitudinally extending ribs 5, 6, one of the ribs, e.g. 6 supporting on its edge the body portion 8 of a sealing strip in permanent engagement with one of the flanges, e.g. 3A and having a flexible tongue 9 laterally extending between the other rib 5 and flange 1A, when the movable frame is in its closed position. As shown in Fig. 2 the intermediate member 4 is secured to the movable frame 3. Fig. 3 (not shown) shows the member 4 fixed to the main frame 1 with the body 8 of the sealing strip on the rib 5 and the tongue 9 between the rib 6 and flange 3A. Fig. 4 (not shown) illustrates the arrangement of a reversible window in which the intermediate member 4 or weather bar is on the top half of the sash and bottom half of the main frame or vice versa. In a modification the two ribs 5, 6 may project from one edge of a web, forming a Y-section member secured at the foot of the web to the base.
Patent GB-778562-A (GB)
Title: Improvements in and relating to hysteresis motors
IPC: H02K19/08
Filed: 1956-01-31
Abstract: A grain-oriented strip for use in electric motors (see Group XXXV) is made of 5-7 per cent nickel, 4-6 per cent vanadium, 43-47 per cent cobalt, and balance iron.  It is worked to up to ten times the required thickness, annealed at 1100 DEG C. for 1 hour and then quenched in oil, reduced 70-90 per cent by cold rolling or drawing, wrapped on a mandrel of the same diameter as the motor armature, aged for 1 hour at 600 DEG C., and cut into sections for mounting on the armature.