baber/WOPTO huggingface dataset:
Patent GB-150693-A (GB)
Title: Improvements in roller bearings
IPC: F16C19/36
Filed: 1920-08-27
Abstract: 150,693. Nordiska Kullager Aktiebolaget. Aug. 30, 1919, [Convention date]. Roller bearings.- The rollers 3 of a roller bearing are prevented from moving into an oblique position by a supporting-ring 4, Fig. 2, secured to one of the race - rings. As shown in Fig. 4, the ring 4 is fixed to a separate support. 5 and has an edge 6 engaging the ends of the rollers.
Patent GB-1024494-A (GB)
Title: Olefin polymerisation catalyst
IPC: C08F10/00
Filed: 1964-06-16
Abstract: A polymerization catalyst for alpha-olefins comprises (1) a halogen-free titanium compound of the formula <FORM:1024494/C3/1> where m is 0, 1 or 2, n is 1, 2, 3 or 4, and the sum of m and n is equal to the valency of T1, i.e. greater than 2, <FORM:1024494/C3/2> or -N=C=, Y is -CO-R11, -CNH-R11 or -CH; R,R1 amd R11, are hydrogen or an alkyl, aryl, alkylaryl, alkoxy, aryloxy, alkylamino, arylamino or heterocyclic group, or, when Y is -CO-R11, R and R11 together complete a quinone structure so that the grouping <FORM:1024494/C3/3> is <PICT:1024494/C3/1> and R111 is an alkyl or aryl group, and (2) an alkyl compound or hydride of a metal of Group I, II or III of the Periodic Classification. The molar ratio of (2) to (1) is from 0.5 to 20. Component (2) may be Al(C2H5)3, Al(C4H9)3, AlH(C2H5)2, Be(C2H5)2, Li(C4H9), Zn(C2H5)2, or LiAlH4.  The catalyst is soluble in hydrocarbon medium and may be preformed or formed in situ.  The exemplified olefin is ethylene.  The Specification contains a long list of suitable titanium compounds.  Exemplified compounds are Ti(OC(C6H5)=CHCHO)3, Ti(OC(C6H5) = CHCOCH3)3, Ti(OCH.C6H4.O)3, Ti(OC(CH3) = CHCN)3, and Ti(OC4H9)2 (OC(CH3) = CHCOCH3)2.ALSO:The preparation of the following halogen-free titanium compounds, suitable for use as polymerization catalyst components are described in the Specification, (1) Ti(OCH.C6H4.0)3 by reaction of TiCl3 with salicylic aldehyde in a benzene medium in the presence of ammonia, (2)Ti(OC(CH3)=CHCN)3 by reacting TiCl3 with cyanacetone which is obtained by hydrolysis of iminoacetoacetonitrile, i.e. dimerized acetonitrile, (3) Ti(OC4H9)2(OC(CH3)=CHCOCH3)2 by reacting TiCl4 with a stoichiometric mixture of acetylacetone and butanol in toluene and in the presence of ammonia, (4) Ti(OC(C6H5)= CHCHO)3 by reacting RiCl3 in toluene, in the presence of ammonia, with benzoylacetaldehyde obtained by condensation of acetophenone with ethyl formate in the presence of sodium ethylate in an ethereal medium, and (5) Ti(OC(C6H5)= CHCOCH3)3 by reacting TiCl3 with benzoylacetone in benzene, in the presence of ammonia.
Patent GB-1395931-A (GB)
Title: Devices for guiding materials being seamed in machines
IPC: D05B35/10
Filed: 1972-05-26
Abstract: 1395931 Seaming VESTRA-UNION MANUFACTURE DE VETEMENTS SA 26 May 1972 [28 May 1971] 24923/72 Addition to 1393540 Heading B5K [Also in Division D1] To guide pieces of sheet material, e.g. textile fabric, into a high frequency welding machine or a sewing machine, a guide comprises three plates 1, 3, 5 spaced apart by two lateral guide plates 2, 4. The pieces of material pass between the plates, workpieces having different edge profiles being guidable individually. Air may issue from holes in the plate 6 to form an air cushion to assist in moving the material. Preferably the plate 1 is transparent.
Patent GB-1272153-A (GB)
Title: Cyclic pumping system malfunction indicator
Inventor: BEUKELAER JEAN H DE
IPC: F01M1/18
Filed: 1970-05-22
Abstract: 1,272,153. Lubricating systems. AUTO RESEARCH CORP. 22 May, 1970 [9 Oct., 1969], No. 24944/70. Heading F2A. [Also in Divisions F1 and G1] A malfunction indicator for a pumping system for liquid or gas, e.g. a lubrication system, in which the pump operates cyclically at timed intervals, comprises an indicator switch 36 responsive to the system pressure and connected to the system 16, 18 via check valve 28 and pressure bleed means 62. In operation, when the system is functioning normally, pump 12 delivers liquid from reservoir 10 and delivers it to lubrication points 24 via restrictors 22, the delivery pressure also acting via check valve 28 to move switch element 38 to operate indicator 44, to indicate normal operation. Between operation cycles of pump 12, the pressure in the switch is bled back to the system via restrictor 62 and optional check valve 60 at a predetermined rate, so that the switch pressure does not fall sufficiently between pump operation cycles for reversal of the switch, to close contacts 46, 48, to take place. If a malfunction occurs causing the pressure in the switch to fall below a predetermined level, reversal of switch element 38 occurs, closing contacts 46, 48 and operating malfunction indicator 50. A pressure bleed 30 also is provided between the circuit and pump 12. Restrictors 22, 62 each comprise a member 70 with a helical groove 72 defining a restricted flow path.
Patent GB-1019412-A (GB)
Title: Pressure fluid distributor
IPC: F15B13/04
Filed: 1963-06-24
Abstract: 1,019,412. Valves. SFERMA, SOC. FRANCAISE D'ENTRETIEN ET DE REPARATION DE MATERIEL AERONAUTIQUE. June 24, 1963 [June 28, 1962], No. 25065/63. Heading F2V. A rotary distributing valve 6, Fig. 1, is provided with a two-part casing 7, 8 in which is fixed a plate 11 and through which passes a splined shaft 15 for actuating a co-operating rotary disc 14 applied against plate 11 by fluid pressure and bearing means comprising a part 27 with a spherical surface engaged by a ball 28 that abuts a piston 31, the stem of which is adjustably threaded into a nut 33 which in turn is screwed into the valve casing. A stud 36 prevents rotation of the piston 31. The valve casing embodies supply, exhaust and working ports 3, 4 and 1, 2, respectively. The working ports 1, 2 are connected to openings 48, 49 through the plates 11 whilst the disc 14 has distributing ducts 51, 52 (Fig. 2, not shown) therethrough which are always open to an annular chamber 45 via passages 53, 54; the chamber 45 is in permanent communication with the supply part 3. Two further distributing ducts 56, 65 pass through the disc 14 and lead to the exhaust port 4 through passages 61, Fig. 1, in the bearing part 27. When the working port 1 is connected to exhaust port 4 the other working port 2 is open to supply port 3 and vice versa. A third or neutral position of the disc 14 is provided in which all the ports are disconnected from one another. The valve may have three working ports in which case the openings and ducts in the plate and disc are increased accordingly. The valve may have one working port only which is open to an annular groove 87 supplied by three openings in the plate, each of the openings being served by an exhaust and a supply duct in the disc whereby the rate of flow to and from the working port is increased. In a modification, each face of the disc 101 (Fig. 6, not shown) coacts with a plate 102, 103, the disc being rotated by a shaft 135 through gearing 138 whilst the plates 102, 103 and associated casing parts 105, 106 may be rotated in opposite directions by a shaft 141 and gearing 144; flexible or coiled pipes may be used to accommodate movement of the casing parts. Four working ports are provided. In another modification, the pipes are connected to stationary parts of the valve casing and the plates are urged against the disc by springs as well as fluid pressure acting on intermediate members.
Patent GB-1372809-A (GB)
Title: Hydraulic ram circuit
IPC: F15B15/22
Filed: 1973-04-04
Abstract: 1372809 Hydraulic circuits PRIESTMAN BROS Ltd 4 April 1973 [30 May 1972] 25243/72 Heading F1P The oil supplied through a duct 10 to cause rightward movement of a piston 7 in a cylinder I is throttled when, near the end of the stroke, the piston 7 obstructs the first of two cylinder ports 14, 15, the obstruction causing the generation of a pressure differential in ducts 12, 13 which is used to move a valve 16 in the supply duct 10 to a throttling position. The valve 16 shown is a spool valve having the ends thereof subjected to the pressure differential in the ducts 12, 13 and being urged by a spring to its non-throttling position. A non-return valve and a throttle 17 are connected in parallel in the duct 13 to ensure that the spool valve does not charge back due to the fall in the supply pressure. An annular clearance 9 around the piston ensures that there is always a return path through the port 14 to a return R. A check valve in one of two parallel supply ducts may replace the spool valve, the check valve being closed by the pressure differential.
Patent GB-1042247-A (GB)
Title: Cable lock and coupler
Inventor: BENNETT JOHN WILLIAM
IPC: F16G11/04
Filed: 1964-06-18
Abstract: 1,042,247. Cable couplings. COMPOSITE PILING & FOUNDATION CO. Ltd. May 28, 1965 [June 18, 1964], No. 25274/64. Heading D1T. When the threaded member 1 is screwed into the coupler part 4 it causes the resilient tube 6 to force the conical gripping elements 2, 5 on to the two cable ends. The tube 6 is preferably such that it can be compressed to substantially fill the interior of the coupler part 4.
Patent GB-686621-A (GB)
Title: Improvements relating to the manufacture of drills
IPC: B21H3/00
Filed: 1950-10-19
Abstract: 686,621. Making twist-drills. EUMUCO AKT.-GES. FUR MASCHINENBAU. Oct. 19, 1950 [Jan. 17, 1950; Aug. 16, 1950], No. 25528/50. Classes 83 (ii) and 83 (iv). Rolling helical grooves.-In a machine for rolling helical grooves in twist drills &c. pairs of skew rolls have central groove - forming ribs, and guide surfaces for the work on each side of the ribs. Four sets of roll pairs 8, 9, which may be used individually for rolling grooves or may be arranged to roll progressively increasing depths of grooves are driven from a single motor through a one-revolution clutch and come to rest with peripheral cut-away portions 8<SP>1</SP>, 9<SP>1</SP> opposite one another to enable the work to be inserted or removed. The lower rolls 8 are driven directly by shafts 5 and the upper rolls 9 by shafts 6 through double ball and socket joints 7. The upper rolls 9, Fig. 4, are mounted in pivoted and axially adjustable housings 10 to permit variation in the helical angle of the grooves produced. The rolls may comprise separate interchangeable discs, a central groove-forming disc 16, Fig. 7, having conical guiding discs 17, 18 on each side, the guide discs being unsymmetrical and the top and bottom rolls being mirror images one of the other. In a modification, each roll comprises two discs, one disc 15, Fig. 8, having two grooveforming ribs 16, 161 separated by a rib 23 which is bevelled on each side, and the other disc 17 having a single guide face. Only one of the ribs 16, 16<SP>1</SP> is used during rolling and when worn the other is used by reassembling the roll with the unworn rib in the centre.
Patent GB-220194-A (GB)
Title: Improvements in or relating to pneumatic tyres
IPC: B60C9/10
Filed: 1923-10-15
Abstract: 220,194. Birkinshaw, E. Oct. 15, 1923. Jackets and covers; tyre attachments to rims. -A pneumatic tyre cover is built up of a layer of textile material, two layers of metal and fabric sheeting having a wire weft b and textile warp c and a covering of textile, material, all impregnated with rubber composition and vulcanized together with a rubber tread. The weft b is formed of f.ne steel wires either encased in textile material or unencased, the layers of wire weft fabric being cut on the bias and passing round the tyre beads with the wefts crossing each other diagonally and passing across the tyre nearly parallel to the line of traction. For single tube tyres, the beaded edges of the cover interengage in the form of a tongue and groove.
Patent GB-535655-A (GB)
Title: An improved automatic pressure changer for gas governors
IPC: G05D16/16
Filed: 1939-09-13
Abstract: 535,655. Pressure-regulating valves. HANSON, T. A., and BRYAN DONKIN CO., Ltd. Sept. 13, 1939, No. 25735. [Class 135] A device for automatically changing the loading on a gas governor of the type in which a diaphragm, bell or piston actuates a valve or valves, comprises means for regulating the relationship of the governor valve or valves to the diaphragm, the loading on the diaphragm being progressively increased or decreased by the altered relationship. A cam a, driven by clockwork, activates a lever b pivoted at c. A wedge d suspended from the free end of the lever passes between two arms e<SP>1</SP>, f<SP>1</SP> of bellcrank levers having a common pivot g, so that downward movement of the wedge separates the arms e<SP>1</SP>, f against the action of a spring x. The arm e is connected by a rod g' to the closure element of a valve h, the supply of gas to the diaphragm l thus being dependent on the movement of the cam a. The arm f is connected by a rod m to a cone n carrying weights in the form of spaced discs o. When the diaphragm is in its lowest position the weights are all supported on a platform p, but as it rises the weights are taken up one by one. In a modification the discs o are connected together for relative movement by shouldered screws. The cam a is made up of discs mounted on a holder and bent to form a continuous helical groove, each disc acting as a separate cam member one for each day of the week. The cam receives axial movement by engaging a fixed pin s, to bring the daily cam portions under the lever b.
Patent GB-981114-A (GB)
Title: Improvements in or relating to liquid fire extinguishing compositions
Inventor: ANDERTON SIDNEY BERNARD
IPC: A62D1/00
Filed: 1962-07-05
Abstract: A liquid fire-extinguishing composition comprises 1,1,1-trichloroethane mixed with an equal or lesser amount of a bromine-containing halogenated hydrocarbon which is miscible or soluble therewith, e.g. chlorobromomethane or trifluorobromomethane.
Patent GB-279413-A (GB)
Title: Improvements in or relating to cover plates the tread surfaces of which are designedto prevent persons from slipping when walking on them
IPC: E04F11/16
Filed: 1927-09-29
Abstract: 279,413. Vereinigte Stahlwerke Akt.- Ges., (Assignees of Bultmann, J.). Oct. 19, 1926, [Convention date]. Manhole covers. - Rolled metal tread plates forming manhole covers for roads are provided with rounded non- slip projections of elongated or star-shaped form instead of the usual round nodules. The extremities of the projections are rounded on a surface at right-angles to the plane of the plate. Reference has been directed by the Comptroller to Specifications 13724/85, 11875/93, [both in Class 2.0, Buildings &c.], 18416/01, [Class 33, Drains &c.], and 9601/10, Class 20 (iv), Floors &c.].
Patent GB-238416-A (GB)
Title: Improvements in the manufacture of whole steel vehicle wheels
IPC: B60B1/10
Filed: 1924-10-29
Abstract: 238,416. Ellis, E. A. Oct. 29, 1924. Disc wheels.-The metal blanks a, a<1> constituting the spokes and hub in wheels of the kind described in Specification 219.817. are formed between the spokes with peripheral flanges f, on which the tyre-carrying rim g is secured by riveting- &c. The rim g may be formed with a recessed base to receive the flat flanges f, Fig. 9, or the upturned edges h of the flanges, Fig. 7. In the modification shown in Fig. 8, the flanges f are assembled between internal lips m on the rim g which are then seamed over. The flanged edges of the blanks between the spokes are connected by metal strips e assembled as shown in Fig. 3.
Patent GB-1178327-A (GB)
Title: Improvements in and relating to a Torque Measuring Device.
Inventor: AGOSTINI ANTOINE
IPC: F16C19/36
Filed: 1967-06-05
Abstract: 1,178,327. Screwdrivers. SOC. DES AUTOMOBILES SIMCA. 5 June, 1967 [8 June, 1966], No. 25781/67. Heading B3N. [Also in Division G1] A torque measuring device, suitable for adjusting a screw-tightening machine, comprises (a) a body 8 that can be bolted to an extensionpiece 1 of a machine whose spindle 2 can be connected by an adapter 4 to a spindle 5 rotatable in roller bearings 15 in the body 8, (b) another adapter 30 whereby the spindle 5 can receive the head of a specimen screw 37 whose threaded portion is received in a specimen or test nut 45, slidably mounted and keyed against rotation in the free end of a sleeve 41, whose other end is secured at 43 to the body 8 and whose midportion is torsionally deformable, and (c) between the body 8 and sleeve 41, a comparator 66 for detecting angular displacement of the free end of the sleeve thereby indicating torque and a screw 57 for adjusting the angular displacement for prestressing the torsion sleeve 41. A tachometer 26 driven by a pinion secured to the spindle 5 is arranged to indicate its speed. In operation when the head of the screw 37 contacts the nut 45, further relative rotation is prevented and when a preset torque develops the machine is halted. If the speed and torque indicated differ from those required, the speed and/or torque preset are adjusted and a further trial operation is carried out with fresh testpieces 37, 45 or with the same ones unscrewed.
Patent GB-927958-A (GB)
Title: Apparatus and process for forming high density compact bodies
Inventor: FELDMAN MILTON H
IPC: B30B15/02
Filed: 1961-07-17
Abstract: 927,958. Moulding compact bodies. WESTINGHOUSE ELECTRIC CORPORATION. July 17, 1961, No. 25829/61. Class 87(2). Compact bodies of high density are formed in a cavity 26 in a die member 24 made of resilient elastomeric material, by introducing the material in the form of small solid particles 32 into the cavity and compressing the die member while allowing sideways expansion thereof. The thickness of the die walls is not less than half the width of the cavity. The die member may be made of natural or synthetic rubber or synthetic resins or mixtures thereof. The particles compressed may be metals, metalloids, metal oxides, magnetic oxides, ceramics, metal hydrides, carbides or nitrides, or mixtures thereof.
Patent GB-1002506-A (GB)
Title: A method and a device for producing electrical oscillations
Inventor: HEIL OSKAR
IPC: H01J23/083
Filed: 1961-07-17
Abstract: 1,002,506. Velocity-modulated tubes. EITEL McCULLOUGH Inc. July 17, 1961, No. 25871/6l Heading H1D. The tendency of charged particles to collect in the less " turbulent " regions of an inhomogeneous electromagnetic field is utilized in a method of producing oscillations which comprises producing an electromagnetic field to interact with a beam of charged particles to form bunches of particles along the axis of the beam, the said field having, from the datum of an average-velocity beam particle, standing waves therein, thereby exposing the beam to the " rectifying " force exerted thereon by the standing waves, and extracting energy from the bunches. The standing waves for a stationary particle would be produced by waves travelling in opposite directions with equal velocities, but as the beam is moving it is necessary to accelerate the forward wave and retard the backwave wave (even to a slow forward wave) so that the average beam particle still " sees " waves of equal and opposite velocity; as a special case the backward wave may be of zero-velocity, i.e. a D.C. spatiallyalternating field. In one form a slow-wave structure 6, Fig. 1, is fed from each end through loops 8, 9 with waves of appropriate frequencies and velocities to simulate a standing wave travelling with the beam. It is shown that electrons will bunch into each trough of the standing wave, thus producing a frequency double that of the moving standing wave. In a second form the backwave wave is reduced to zero-velocity and is simulated by a series of tubes 21 . . . 26 and 28 . . . 32, Fig. 2, held respectively at potentials above and below the mean beam potential within the resonant structure 14. The forward wave is simulated by introducing a driving frequency at 59 and adjusting the lengths of the tubes so that the average beam electron sees at successive gaps a wave travelling along the structure 14 at twice the mean beam velocity. As shown in the phase diagram of Fig. 11, by the time the seventh gap is passed bunching has reached a maximum and the efficiency is then 88%. The structure 14 is formed from two mutuallyinsulated (e.g. by ceramic strips) half-shells 12, 13 to which the two sets of tubes are connected by struts 27, 33. The half-shells are surrounded by a further shell 57 which may be continuous as shown, or divided, Fig. 3 (not shown). The end wall contains an entry tube 47 at mean beam potential spaced from tube 21 by a gap 49 of half the spacing of succeeding gaps, to achieve correct entry conditions. Preferably the bias voltage between the gaps is equal to the peak voltage of the driving frequency and this is 0.3 of the beam voltage.
Patent GB-826878-A (GB)
Title: Improvements in or relating to an apparatus for determining the specific surface area and the grain shape of a granular substance
IPC: G01N15/08
Filed: 1957-08-16
Abstract: 826,878. Testing physical qualities of granular materials. FISCHER A.G., G. Aug. 16, 1957 [Aug. 18, 1956], No. 25932/57. Class 106 (2). Apparatus for determining the specific surface area (surface area per unit mass) and the grain shape of a granular substance comprises two U-tubes 2, 3; 5, 6, respectively, the upper ends of arms 3 and 5 being in communication, and arms 2, 6 open to the atmosphere; and a cock 7 which can connect either arms 5 and 6, or else arm 6 and a bellows 9. In use, a predetermined weight of sand 20 is placed in arm 6, and the volume read from a scale 10. A liquid 15 is added to the U-tube 2, 3, with both arms open to the atmosphere until it reaches a mark 11. With the cock 7 in the position shown, the bellows 9 is operated to remove air from arm 3 until the level of the liquid reaches a mark 14. The cock 7 is then turned to connect arms 5 and 6 and as the liquid in arm 3 falls, the time for it to pass between two marks 13, 12, is noted, and the specific surface area of the sand can then be calculated by using a given formula. If the theoretical specific surface area (assuming spherical grains) is calculated by sieve analysis, the ratio between these two values gives a measure of the grain shape.
Patent GB-377491-A (GB)
Title: Improvements in or relating to cylinder covers for internal combustion engines
IPC: F02F1/38
Filed: 1931-09-16
Abstract: 377,491. Cylinders. ALLGEMEINE ELEKTRICIT€TS-GES., 2, Friedrich Karl- Ufer, Berlin. Sept. 16, 1931, No. 25945. Convention date, Dec. 9, 1930. [Class 7 (ii).] A cylinder head comprises a cast steel part a and a plate b of rolled pressed, or wrought metal, the plate being pressed into the part a and then soldered to it. Bushes c are pressed, shrunk, or screwed in, and soldered to both parts. The plate b may be made of copper or a copper alloy, or of boiler iron. Specifications 334,481, [Class 7 (ii), Internalcombustion engines, Arrangement &c. of], and 341,340, [Group XXII], are referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also shrinking a separate ring to hold together the parts a, b, which may be subsequently welded or brazed. This subject-matter does not appear in the Specification as accepted.
Patent GB-796105-A (GB)
Title: A visor for rear view driving mirrors
IPC: B60R1/06
Filed: 1955-09-10
Abstract: 796,105. Rear view mirrors for vehicles. BATTERSBY, D. J. Sept. 7, 1956 [Sept. 10, 1955], No. 25947/55. Class 103(2) A vehicle rear view mirror 1, Figs. 1 and 3, is fitted with a detachable visor 3 formed from a flexible moulding of plastic which fits round the greater part of the periphery of the mirror and is sufficiently flexible to accommodate mirrors of varying dimensions. An inturned flange 7 on the visor engages the rear top rim of the mirror whilst the front of the mirror is engaged by projections 8. The free ends of the visor are provided with lugs 4 which are fastened together by a rubber strip 9 provided with holes 10 to engage the lugs. In lieu of the strip 9, a rubber ring or a helical coil spring, may be used. The inside of the visor may be provided with flutes 5. The invention may be applied to other shapes of mirrors than that shown.