baber/WOPTO huggingface dataset:
Patent GB-1192491-A (GB)
Title: Apparatus for Treating a Light Beam
Inventor: BROWNE ARTHUR
IPC: G02F1/11
Filed: 1968-03-15
Abstract: 1,192,491. Light modulators. MULLARD Ltd. 15 March, 1968, No. 12705/68. Heading H4F. Apparatus for producing a plane polarized beam of light with the plane of polarization rotating comprises a doubly refracting crystal which splits a plane polarized light beam 9 into two trays 1 and 2 which are phase-coherent and polarized in orthogonal planes a photoelastic delay-line 3 stressed by a travelling acoustic wave which amplitude-modulates the two rays 1 and 2 with the modulation envelopes having the frequency of the acoustic wave and being in quadrature, and a doubly refracting crystal 11 which re-combines the amplitudemodulated rays 6 and 7 to produce the required beam 16. Crystal 10 is so selected and dimensioned that the distance separating the rays 1 and 2 is one quarter of the wavelength of the acoustic wave modulating frequency. The transducer at the end of the photo-elastic delay-line may produce a shear mode acoustic wave or a compressional longitudinal acoustic wave, the rays 1 and 2 being suitably angularly orientated to provide the amplitude modulation thereof, and the delay-line body being terminated by an absorber to prevent the formation of standing waves.
Patent GB-198539-A (GB)
Title: Improvements in or relating to artificial arms
IPC: A61F2/58
Filed: 1922-05-05
Abstract: 198,539. Anderson, D. M. May 5, 1992. Limbs, artificial.-In an artificial arm which pivots at the shoulder joint, pulleys are mounted on the pivoting axle by means of which the pull on a cord fixed thereto first raises the forearm and then swings the whole arm upwards about the shoulder pivot. In the constructional form shown a leather shoulder-piece a, secured by straps, carries a metal bow b with a cross bar c serving as a bearing for a shaft d on which the pulleys e, f are fixed. The upper arm casing i is pivotally mounted on the shaft by means of a cross member g having downwardly-extending rods I terminating in eyes carrying the elbow pivot pin n to which the lower arm casing i<1> is attached by straps w. Between the rods l is a slotted member h embracing the shaft d and a guiding stud r directly above it, while a stud p on a lateral arm of the member moves in a bent slotted projection g<1> of the cross member g. Pivotally connected to the slotted member h is a downwardly extending rod u with a slotted end embracing the elbow pivot pin, and having a projecting lug u<1> connected by means of a rod z and chain z' to the periphery of the pulley f; while a bolt y in this lug engages a pair of slotted arms x fixed to the elbow pivot pin. A traction cord j, attached to some convenient point of the body, passes round the pulley e and is attached to its periphery, so that on lifting the shoulder the pulleys are rotated, raising the forearm by means of the slotted arms x. During this motion the slotted member h is also raised, until the pin p enters the inclined portion of the slot in the projection g<1>, when further motion causes the whole arm to pivot about the shoulder in the upward direction, the return movement being effected by the weight of the arm when the tractive effort is removed.
Patent GB-737920-A (GB)
Title: Process for the preparation of objects containing felted eellulose acetate fibres
IPC: D21H17/14
Filed: 1952-05-20
Abstract: Fibres of cotton, hemp, linen, jute, disintegrated paper or regenerated cellulose &c., are acetylated in the absence of a solvent for acetylated fibres, with retention of the fibre structure, to a degree not higher than the diacetate, and compressed &c. to form fibre-board &c.  In an example, bleached sulphate cellulose is acetylated to 29 per cent of combined acetic acid, using 5 per cent of zinc chloride, 25 of acetic anhydride, and 70 of glacial acetic acid.  Specifications 525,265 and 535,932 are referred to.
Patent GB-220368-A (GB)
Title: Improvements in and connected with power transmission gear for internal combustion engines
IPC: F16D3/62
Filed: 1923-05-14
Abstract: 220,368. Still, W. J. May 14, 1923. Flexible toothed wheels.-In shockabsorbing means for use in gear-wheel drives in locomotives driven by internal combustion engines, electromotors, &c., for instance such as are described in Specification 200,586, [Class 79 (i), Locomotives Rc.], freely mounted spring - pressed plungers have inclined faces engaging inclines on both the members to be resiliently connected or on parts slidable therein. In the form shown in Figs. 8 and 9, plungers 26 are pressed radially outwards by plate springs 22 connected by buckles 23 to a loose coupling-ring 24. The outer plate 22a of each spring is weaker and bent to a smaller radius than the other plates so that the plunger points are normally retained comparatively lightly in contact with the flattened troughs 27<a> both of recesses 20 formed in the rim 3 of the toothed wheel and of apertures 21 in flanges 4 formed on the wheel hub. Relative movement of the hub and rim causes the plungers to engage the sides of the recesses and apertures and to be pressed towards the wheel centre so as to bring the main spring plates into action. In the form shown in Figs. 2, 3 and 4, the main and auxiliary springs 11, 12 are duplicated, arranged parallel to the wheel axis, and supported on opposite ends of loose bolts 17 so as to press wedge-shaped casings 9 against wedge blocks 6, which are formed with rounded flanges 6<a>. These flanges bear in recesses 19 in the sides of recesses 5 and apertures 5<a> on the rim 3 and flanges 4 of the wheel, respectively, and, while the auxiliary springs 12 only are in action, have line contact with the recesses 19. With increase of torque, the flanges 6<a> bed fully into the recesses 19 and the casings 9 are forced apart. The parts may be immersed in oil, which may be circulated mechanically.
Patent GB-1503079-A (GB)
Title: Ships hull
IPC: B63B1/04
Filed: 1976-03-31
Abstract: 1503079 Hull forms B W TORNQVIST 31 March 1976 [30 April 1975] 12865/76 Heading B7A A cargo ship has a main deck 7 beneath which the hull's transverse section is trapezoidal and the sides of the hull 6<SP>1</SP>, 6<SP>11</SP> are inclined at an angle of between 125 and 145 degrees to the bottom 8. The trapezoidal section extends throughout the major length of the ship and provides a hull shape with hydrostatic features particularly suited for cargoes with a high stowage factor.
Patent GB-671176-A (GB)
Title: Improved carton
Inventor: COLLEY JOHN EDWARD
IPC: B65D5/50
Filed: 1950-05-24
Abstract: 671,176. Cartons. BRITISH SCHERING, Ltd. May 24, 1950, No. 13077/50. Class 18 Two sides 11 of a carton have extensions, portions 14 of which are apertured, the extensions folding inwardly so that the apertures engage the end portions of an articleto be packed. The carton is closed by folding walls 3...6 about the folded extensions and engaging the overlapped walls 5, 6 by tongue-and-slot connections.
Patent GB-611551-A (GB)
Title: Improved manufacture of ª‰-methylnaphthalene
IPC: C07C2/86
Filed: 1946-05-01
Abstract: Essentially pure b -methylnaphthalene free from a -methylnaphthalene is prepared by interacting naphthalene and methyl ether in the presence of an aluminium silicate catalyst within the temperature range of 200 to 700 DEG  C.  Small quantities of dimethylnaphthalenes are also obtained.  In an example, naphthalene vapours and methyl ether are passed into the top of a tube containing aluminium silicate at a temperature of 450 DEG  C., and the products issuing from the bottom of the tube are condensed and fractionated to yield b -methylnaphthalene. Specification 571,123, [Group III], is referred to.
Patent GB-132201-A (GB)
IPC: A47J31/54
Abstract: 132,201. Robertson, T., and Robertson, T. April 22, 1919. Boilers. - In a gasheated vertical boiler of the kind having a coiled pipe 5, Fig. 2, in the flue 3, there is arranged an expansion box 8 which projects into the upper part 4 of the flue, and to which is connected the top 7 of the coil. The top is perforated to allow escape of fumes. Tea or coffee urns are connected to the water space and expansion chamber of the boiler.
Patent GB-632700-A (GB)
Title: Improvements in or relating to a ball and socket joint
IPC: F16C11/08
Filed: 1947-05-16
Abstract: 632,700. Hinges. THOMPSON PRODUCTS, Inc. May 16, 1947, No. 13229. Convention date, Sept. 13, 1946. [Class 65 (ii)] A ball and socket joint comprises a bearing member 25 press-fitted into a housing 10, a bearing member 26 slidable in the housing, a ball stud 20 tiltable and rotatable on the members, a washer 29 of resilient material, and a plate 30 secured to the housing and adapted to press the washer against the second bearing member for maintaining the stud and bearing members in bearing relationship. A lubricator 33 is provided.
Patent GB-354309-A (GB)
Title: An improved pressure controlled regulator
IPC: H01H35/24
Filed: 1930-04-30
Abstract: 354,309. Gaseous-fuel furnaces. MILLS, T. A., Laurieston, Saltburn, Yorkshire, and BOSANQUET, W. S. B., Gainford, Darlington, Co. Durham. April 30, 1930, No. 13327. [Class 51 (i).] The speed of an electric motor driving a fan supplying air to mix with the gas in a gas-fired furnace is controlled by the pressure in the gas main by means of a pipe 3 leading from the main to the underside of a bell 2 dipping into an oil seal in a casing 1, the bell being connected through a rod 11 and toothed sectors 9 on levers 8 to a number of rods 6 movable vertically in guides 4a, 5a, each rod carrying a number of abutments 6a on which rest carbon discs 6x, slidable on the rod and co-operating with pairs of stationary contacts 12a, the arrangement being such that as the. bell moves in response to pressure changes in the main the discs 6x successively make or break contact with the pairs of contacts 12a so as to cut out or cut in resistances in the motor circuit. The bell may be balanced by a separate series of weights as described in Specification 353,948, [Group XXXVII].
Patent GB-476026-A (GB)
Title: Process for the conversion of hydrocarbon oils
Filed: 1937-05-10
Abstract: <PICT:0476026/III/1> In a process for the distillation and conversion of hydrocarbon oils the crude oil supplied by a pump 3, and preheated by passage through a heat exchanger 6 or otherwise, is fractionated in a tower 9 into a high-boiling liquid fraction and a low-boiling vapour fraction.  The latter without condensation is cracked in the vapour phase in a coil 12 and the cracked vapours are passed, with or without passage through the heat exchanger 6, into a conversion chamber 20 where they are mixed with the high-boiling fraction of the crude oil collected in the tower 9 and supplied through lines 24, 25 and/or with heavy intermediate products of the cracking reaction supplied through the lines 31, 34.  Any of the fractions flowing to the chamber 20 may be subjected to further conversion in a coil 33 as required.  The total products from the chamber 20 are vaporized in an evaporator 4 from which heavy residues are removed through a line 42 to storage while the vapours are fractionated in a tower 46 from which (1) bottoms are recirculated through the line 31 to the chamber 20 as described, (2) light intermediate fractions are returned through a line 50 to the coil 12, and (3) the desired light end-point fraction is removed through a line 52, condensed in a cooler 54, and collected and freed from gases in a receiver 57.  In a modification vapours are removed separately from the chamber 20 and passed direct to the column 56.
Patent GB-899489-A (GB)
Title: Improvements relating to propellant supply systems for rockets
IPC: F02K9/46
Filed: 1961-04-13
Abstract: 899,489. Rocket propulsion. UNITED AIRCRAFT CORPORATION. April 13, 1961 [April 14, 1960], N. 13375/61. Class 110 (3). A propellant supply system for a rocket engine having an injector head and propellant heating means (for example passages in the rocket wall) comprises a pump for delivering propellant to the heating means, a turbine driving the pump, a duct connecting the pump to the heating means, a conduit connecting the heating means to the turbine, a conduit connecting the turbine to the injector head, and a heat exchanger one flow path of which is disposed in the conduit from the turbine to the injector head and the other flow path of which is disposed in the duct connecting the pump to the heating means, the heat exchanger serving to heat the propellant delivered by the pump and to cool the propellant discharging from the turbine. In the system shown, one propellant, the oxidizer is delivered by pump 14 through line 16 controlled by valve 18 to the manifold 20 of the injector head 10, the oxidizer being discharged through ports 22 into the combustion chamber 2. The other propellant, liquid hydrogen, is delivered by a first stage pump 26 through duct 30 to the second stage pump 28 passing therefrom through line 32 controlled by valve 62, through a heat exchanger 34 wherein it is heated and thence through passages 8 in the wall of the combustion chamber and nozzle assembly 2, 4, the hydrogen being thereby further heated and the wall being cooled. The heated hydrogen then flows through line 40 to the turbine 42 which is driven thereby. The hydrogen discharges from the turbine through line 52 and passes again through the heat exchanger 34 giving up heat to the hydrogen passing from the pump 28 to the combustion chamber and nozzle wall 8. The hydrogen then flows through line 54 controlled by valve 56 to the manifold 58 and thence into the combustion chamber.
Patent GB-456220-A (GB)
Title: Improvements in thermostats
IPC: H01H37/48
Filed: 1935-05-04
Abstract: 456,220. Thermal switches. SATCHWELL, L., Farnham Road, Slough, Bucking- hamshire. May 4, 1935, No. 13382. [Class 38 (v)] In a thermostatic switch suitable for an oven in which an expanding tube 2 causes the lowering of a rod 3 and hook 5 and the consequent movement of a switch blade 6 so that a contact 8 is pulled away from a fixed contact 16, the blade 6 and contact 16 are mounted on one arm of a lever 10 pivoted at 12, the other arm 11 of the lever being adjustable by rotation of a screw 19 which lies in the same plane as the tube 2 and extends out from the base in the same direction. The screw 19 may carry a bracket 27 carrying a screw engaging the arm 11 and may itself be turned through the medium of a rod connected to the screw 19 by a coupling 22. A spring 20 holds the arm 11 against the bracket 27. A flick action is given to the contacts by an armature 7 and magnet 14. The tube 2 is adapted to extend along the side of the oven and the regulating knob, connected through the rod to the screw 19, is adapted to be at the front of the oven. Specification 449,908 is referred to.
Patent GB-901259-A (GB)
Title: Improvements in or relating to injection moulding machines
Inventor: TUDELA CHARLES STONE
IPC: B29C45/17
Filed: 1960-04-14
Abstract: 901,259. Injection-moulding machines. NATIONAL AUTOMATIC TOOL CO. Inc. April 14, 1960, No. 13435/60. Class 87(2). An injection moulding machine comprises a die head and an injection unit and has a die locating blank secured to the die head and a centre punch device co-operating with the injection unit and having a centre punch point lying coaxially with the injection nozzle and with a bore in said blank designed for receiving a portion of the moulding die so as to locate it coaxially with the injection nozzle. A blank 22 is located in a counterbore 20 of a die head 14 and positioning screws 34 are removed. A punch device 26 having a centre punch point 32 is mounted on the nozzle 18 of an injection unit 16 and the unit is moved leftwards so that point 32 marks blank 22 and pushes it out of the counterbore. A disc is then machined out of the blank with the punch mark as centre and having a required radius so that a die locating ring 22a with a bore 24a is produced. The ring is fastened in position by screws 34 and receives the sprue bushing 46 of mould 52.
Patent GB-314177-A (GB)
Title: Improvements in spraying apparatus
IPC: B05B1/14
Filed: 1928-05-08
Abstract: 314,177. Grimley, W., and Eclipse Spraying Co., Ltd. May 8, 1928. Angle pieces, junction pieces and the like. - A spraying - apparatus com - prises a tube 1, for mounting on a pump &c., to which is connected a transverse tube 3 carrying one or more discharge nozzles 9 mounted on tube 8 adjustable about the axis of the tube 3. The tube 3 is formed with shanks 6 provided with grooves 14 and perforated at 15, around which are mounted collars 7 into which the tubes 8 are screwed and retained in position by screws 12. The tube 1 may be mounted to rotate about the axis of the pump 2.
Patent GB-135180-A (GB)
IPC: E03D1/18
Abstract: 135,180. Renner, G. March 7, 1914, [Convention date]. Valve-discharge water-waste preventers; overflow fittings; locking supply cocks; damage by frost, preventing. - The discharge valve c is formed integral with an overflow tube d, the whole being hinged at e. The tube is formed with a flange f adapted to engage the parts v, h of a weighted lever g which is pivoted at k and actuates the supply valve. Pivoted at o to the lever g is the float lever q having a shoulder p' adapted to rest on a fixed projection n. When a chain attached at s to the lever g is pulled the valve i is opened and the valve c closed and the cistern fills, the shoulder p<1> engaging the projection n and supporting the parts in the position shown. At a certain water-level the float r is raised sufficiently to free the shoulder p<1>. The lever g thereupon falls, the part v striking the flange f and opening the valve c. The upper end of the pipe a is cut away at b to allow of the complete emptying of the cistern, the valve c being shaped to fit. The lever q is twisted at x so as to have the broad faces horizontal for part of the length in order to facilitate bending and adjustment thereby. The Specification as open to inspection under Sect. 91 (3) (a) describes apparatus which differs in some respects from the above, see Fig. 1 (Cancelled). When the lever q disengages the trip, and the lever g falls, an elbow h on the lever g strikes the shelf f on the overflow tube d, and tilts the tube about a pivot e, opening the valve c and discharging the cistern. The tube remains tilted until the chain is pulled again, so that the cistern is normally empty. This subject-matter does not appear in the Specification as accepted.
Patent GB-812636-A (GB)
Title: Improvements in twist arrestors for yarn twisters
IPC: D01H13/08
Filed: 1956-05-02
Abstract: 812,636. Yarn twist arrester. ATELIERS ROANNAIS DE CONSTRUCTIONS TEXTILES. May 2, 1956 [June 6, 1955], No. 13559/56. Class 120(2) A yarn twist arrester comprises an idler pulley of polygonal crosssection around or partly around which a bundle of filaments passes, the edges of the pulley contacting the bundle to arrest twist runback without introducing any appreciable supplementary tension in the bundle. In a downtwister, Fig. 2 the filament bundle 13 passes over an idler pulley 6 of triangular section and then through a guide 12 to a ring and traveller take-up. In the embodiment of Fig. 4, an idler 6 rotates with the flyer 4 of an uptwister, and twist is inserted between the idler 6 and an idler 6a rotating about its own axis which is fixed, the idler. 6a acting to feed the twisted bundle but to prevent the twist from running without control.
Patent GB-1040335-A (GB)
Title: Improvements in or relating to four-wheel drive tractors
Inventor: MATHEW LEONARD STANLEY
IPC: B60K17/34
Filed: 1962-04-09
Abstract: 1,040,335. Braking articulated vehicles. MATBRO Ltd. April 3, 1963 [April 9, 1962], No. 13648/62. Heading B7H. An agricultural tractor or shovel loader wherein two driving axles 7, 8 are angularly adjustable about a vertical steering pivot and one axle 7 or 8 is pivoted about a longitudinal axis includes a disc brake 6 on a universally jointed transmission shaft 5 driving differential gearing incorporated in each axle 7, 8. An engine 1 is connected through a gear-box 2 and a gear train, chain or belt drive within a housing 4 to the transmission shaft 5. An hydraulic steering jack 16 is supplied by a valve (not shown) actuated by a link connected to a lever 22 pivoted coaxially with the vertical steering pivot and rotated by a link 22 coupled to the drop arm 23 of a steering box 24 actuated by a steering wheel 24.
Patent GB-373388-A (GB)
Title: Improvements in electric wind-screen wipers
IPC: H02K23/40
Filed: 1931-05-09
Abstract: 373,388. Motors. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. May 9. 1931, No. 13751. Convention date, June 10, 1930. [Class 35.] Cores; casings.- A windscreen wiper motor has two horseshoe field magnets a with coils d on their yoke portions disposed on either side of a threelimbed armature c so that the field polepieces b surround at least five-sixths of the virtual circumference of the armature. The motor may have two or four poles, the magnets may be laminated and their limbs may taper towards their yokes. The gearing chamber is so arranged as to leave a space h for the introduction of a lead k which is not disturbed by the removal of the cover l.
Patent GB-1421693-A (GB)
Title: Preparation of allethrolone via allethronyl acid phthalate
IPC: C07C45/67
Filed: 1974-03-28
Abstract: 1421693 Preparation of optically active allethronyl acid phthalate and allethrolone SUMITOMO CHEMICAL CO Ltd 28 March 1974 [28 March 1973 29 March 1973 18 April 1973 11 June 1973 (2)] 13887/74 Heading C2C Optically active allethronyl acid phthalate is prepared by reacting ()-allethronyl acid phthalate of the formula with an optically active amine selected from alpha-phenylethylamine of the formula alpha-phenyl-B-p-tolylethylamine of the formula  threo - 2 - dimethylamino - 1 - (p - nitrophenyl)- 1,3-propanediol of the formula and naphthylethylamine of the formula to form diastereomeric salts thereof, and decomposing the resolved salt to optically active allethronyl acid phthalate. Allethrolone is prepared by hydrolysing allethronyl acid phthalate for Formula I which may be optically active in water or in aqueous solvents.
Patent GB-1177727-A (GB)
Title: Sliding Clasp Fastener
IPC: A44B19/12
Filed: 1968-03-22
Abstract: 1,177,727. Sliding clasp fastener. YOSHIDA KOGYO K.K. 22 March, 1968 [15 April, 1967], No. 13941/68. Heading E2S. A sliding clasp fastener of the concealed type comprises a pair of stringer tapes 10 each with an inwardly folded edge portion 11, a row of helical or meandering fastening elements 12 formed from a single synthetic plastics filament secured to the lower side of each folded edge portion 11 and a slider S slidably mounted on the stringer tapes. Each element includes a coupling head 14 joining two legs 16, and a portion 15 connecting one of the legs 16 to a leg of the adjacent fastening element. The folded edge portion 11 fits tight against a recess 17 in the upper leg of the element and the loop portions of sewing threads 13 are disposed inside a recess 17 in the lower leg of the element. In a modification Fig. 2 (not shown), a recess may be provided only in the lower leg portion. A resilient braid 20 is inserted between the legs 16 of the elements 12 and extends longitudinally of the entire length of the fastener. The braid prevents the stitching 13 from shifting out of position and controls the spacing between the legs of the elements when the latter are flexed toward each other under sewing pressure. In a modification the spacing braid 20 is replaced by warps of the weaving threads constituting the stringer tapes, Fig. 4 (not shown). The recesses may be shaped so as to be deeper toward the coupling head of the fastener element, Fig. 3 (not shown).