baber/WOPTO huggingface dataset:
Patent GB-469226-A (GB)
Title: Improvements in or relating to automatic firearms
IPC: F41A7/02
Filed: 1936-11-30
Abstract: 469,226. Automatic guns; ratchet gearing. RHEINMETALL-BORSIG AKT.- GES., ENGEL, G., and WINTER, A. Nov. 30, 1936, No. 32746. [Class 92 (ii)] [Also in Group XXIV] Manually - operated recocking means includes pawl-andratchet mechanism for moving the recoiling parts rearwards in a series of step - by - step movements. In the form shown in Fig. 2, a handle f carrying a spring-pressed pawl f<5> is rocked about a pin d<2> carried by a member d which slides longitudinally on the gun casing when a pinion g rotated step-wise by the ratchet pawl engages a fixed rack (not shown). The member d carries a projection d<1> engaging the breech-block and a releasable retaining pawl i engaging the rack. The pawl f<5> is connected to a sleeve h which can be moved along the handle f and rotated to place the pawl in an inoperative position when the handle is used for direct recocking. Fig. 5 shows a modification in which both strokes of the handle are effective in moving the breech-block c rearwards. For this purpose, the handle carries a pawl f<1>5 engaging directly with a pinion g<1> in gear with the fixed rack e, and a second pawl f<1>6 engaging a pinion g<1>o which is geared by an intermediate bevel wheel g<2> with the first pinion g<1>.
Patent GB-353800-A (GB)
Title: Process of extracting pyrethrum
Filed: 1930-10-31
Abstract: In the preparation of an insecticidal extract from pyrethrum flowers are macerated and percolated with a petroleum product such as kerosine or naphtha and the fibrous residue is subjected to high pressure and twisting forces to remove any remaining solvent and native principle.  The residue may again be macerated and extracted with the solvent and subjected to pressure.  A small quantity of water may be added to the mass before it is subjected to pressure. The press used may be a screw conveyer of decreasing pitch fitting closely in a drum with an adjustable pressure regulating outlet for the fibrous residue and peripheral outlets for liquid.  Pressures up to 16 tons per square inch may be employed.  The final residue may be mixed with substances such as oil of pine needles, oil of cedarwood, oil of cedarleaf, or oil of lavender, together with an agglutinant and formed into tablets or cones for use as incense or the like, or may be mixed with chemicals for use in disinfecting or fumigating. The residue may also be used in the manufacture of boxboard or similar fibrous material.
Patent GB-1058766-A (GB)
Title: Centrifugal countercurrent exchange device with fully adjustable apertures
IPC: B01F9/00
Filed: 1963-08-19
Abstract: 1,058,766. Centrifugal liquid/liquid contactore. W. G. DOYLE and C. M. DOYLE. Aug. 19, 1963 [April 12, 1963], No. 32777/63. Heading B1F. A centrifugal countercurrent exchanger comprises a rotor having a pair of end walls and concentric bonds positioned within the rotor, a plurality of strips having apertures therein associated with the bonds whereby the selection of appropriate strips the aperture characteristics within the rotor may be adjusted, means for supplying and withdrawing a heavy and a light liquid to the apparatus and removable means for affording access to the apertures. The end wall 34 of the apparatus has a plurality of access points 36 which are threaded to take a plug 38 and sealing gasket 46 behind which is a disc 44 having grooves on the inner side to accommodate the ends of the bonds 42. The access holes are built in alignment with the apertures which have apposed channel members 50 (see Fig. 6) to receive the strips 52. Other strips with different configurations of holes are disclosed (Figs. 8 to 10, not shown) one of which has a medial rib designed to effect rotary or linear droplet dispersion of the liquids between the bonds. In another embodiment, (Figs. 11 and 12, not shown), the access holes are replaced by large radion-shaped plates which expose a greater number of bonds. Imperforate strips and combinations of various types of strips may also be used.
Patent GB-172507-A (GB)
Title: Improvements in and relating to door-holders, window-holders and the like
IPC: E05C17/38
Filed: 1920-11-22
Abstract: 172,507. Stainer, W. Nov. 22, 1920. Stays.-A door or window holder &c. of the kind in which a curved bar disposed above the door and attached to the door frame carries a pivoted catch adapted to drop behind the door to retain it in the open position comprises the curved bar A attached to the door frame B and partly supported by a straight strut D, and carrying a saddle-shaped sheet-metal member F pivoted thereto at G, Fig. 2. A stop N limits the opening movement of the door. The catch F may be raised in order to release the door by means of mechanism described in Specification 3981/15, which comprises a lever O pivoted to the door, one end of which engages beneath the catch to raise it when the free end is pulled by a cord P, Fig. 1.
Patent GB-355120-A (GB)
Title: Improvements in and relating to electric distributing systems
IPC: H02H11/00
Filed: 1930-11-01
Abstract: 355,120. Supply systems. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitats Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Nov. 1, 1930, No. 32928. Convention date, Nov. 2, 1929. [Class 38 (iv).] Neighbouring sections of a supply network emanating from individual feeding points and normally unconnected with one another are automatically interconnected, to share the load, when the voltage difference between them exceeds a predetermined amount. The sections 1, 2 are connected together when the difference of voltage arises by the circuit-breaker 3 closed by the coil 5 and retained by the no-volt coil 6 under the control of the relay 15. The voltage difference serves to energize the volt coil 4 and to close the relay 15 which is retained closed by the coil 11 carrying the current flowing between the two interconnected feeders. The feeders may be interconnected at will by manual operation of the change-over switch 8 which puts a voltage on the coil 4 from the midpoint of a resistance 13 bridging one of the poles of the circuitbreaker. They may be disconnected by manual operation of the switch 10 and, automatically, when excess current flows between the feeders, by the overload relays 7. To prevent pumping action of the circuit-breaker, known means may be employed to limit the number of possible reclosures within a given time.
Patent GB-791499-A (GB)
Title: Adjustable rotary connection between a prismatic shaft and a coaxial connecting member
IPC: G05G1/12
Filed: 1956-10-29
Abstract: 791,499. Rotary coupling. NAIMER, H. L. Oct. 29, 1956 [Nov. 16, 1955], No. 32976/56. Class 80 (2). In a rotary connection between a prismatic shaft 1 and a knob 3 or other member the knob 3 is formed with a conical bore 4 in which a conical wedge member 5 is secured by a screw 6. The conical wedge member 5 is made of an elastic material such as superpolyamide and may be fitted with a sleeve 7 to accommodate the screw 6. The wedge member 5 is also formed with slots 8 forming segments each of which bears against the part 2 of the shaft 1. By tightening the screw 6 the wedge 5 is deformed to clamp the knob 3 to the shaft 1. To increase the torque transmitted the bore 4 may be provided with recesses 10 fitting one or more projections 9 on the wedge member 5. In another construction the wedge member is fitted in an inverse position and locked by a screwed ring.
Patent GB-1001691-A (GB)
IPC: G01L1/12
Filed: 1963-08-21
Abstract: 1,001,691. Measuring strain electrically. PHILIPS ELECTRONIC (ASSOCIATED INDUSTRIES) Ltd. Aug. 21, 1963 [Aug. 24,1962], No. 33110/63. Heading G1N. [Also in Division H1] In a strain gauge in which an applied force varies the resistance of an element the element is formed by an anisotropic thin film having a preferred direction of magnetisation. The Specification states that the effect of an applied force on an anisotropic film is to rotate the preferred direction of magnetisation and, as the resistivity of such a film is dependent on the direction of the current, this enables the apparatus shown in Fig. 1 to act as a strain gauge. It is preferred that the direction of the easy axis of magnetisation is at 45 degrees to the applied stress. In a preferred embodiment four elements are arranged in a bridge circuit, two elements being arranged at right angles to the other two but all having the same preferred direction of magnetisation (Fig. 2). A pressure gauge utilising such a device is described (Fig. 3 not shown). It is stated that the device may also be used for measuring displacement, vibration and acceleration. Suitable dimensions are given and the film may be 80%nickel, 20% iron deposited from the vapour state on to a glass substrate. A particularly suitable material is a nickel cobalt alloy and the resistance is preferably measured in a direction paralle to, or perpendicular to, the stress. The bridge circuit compensates for temperature variations.
Patent GB-757230-A (GB)
Title: Improvements in or relating to stator blade ring assemblies for axial flow compressors and the like
Inventor: HALFORD FRANK BERNARD
IPC: F01D17/16
Filed: 1953-12-01
Abstract: 757,230. Axial - flow compressors. DE HAVILLAND ENGINE CO., Ltd. Nov. 30, 1954 [Dec. 1, 1953], No. 33396/53. Class 110(1) A stator blade ring assembly for an axial-flow compressor or the like comprises a series of stator blades D<SP>1</SP>, Fig. 1, each extending in an approximately radial direction from the axis of an annular flow passage or in a direction which is tangential to a circle of relatively small diameter having its centre on the said axis (the direction, in either case, maybe having a component in the direction of the said axis) and each pivoted about its longitudinal axis or an axis parallel thereto, a cam member G<SP>1</SP>, Figs. 1 and 3 rigidly secured to the outer end of each blade and projecting in a direction having a substantial radial component relative to the pivotal axis, an operating ring, or sleeves H surrounding the blade-supporting ring B and carrying a series of followers H<SP>3</SP> respectively engaging the cam members G<SP>1</SP>, and means for moving the sleeve H bodily in relation to the ring B so that the followers H<SP>3</SP> act on the cam members G<SP>1</SP> to rock the blades D<SP>1</SP> simultaneously and similarly about their pivotal axes. The followers H<SP>3</SP> are in the form of rollers mounted on ball bearings carried by supports H<SP>2</SP> and each engaging a cam slot G<SP>2</SP> in the respective member G<SP>1</SP> so that longitudinal movement of the sleeve H causes pivotal movement of the blades D'. Sleeve H is supported on rollers J carried by radial trunnions J<SP>1</SP> and engaging longitudinal slots in guide members K bolted to the ends of the sleeve H. The longitudinal movement of the sleeve H may be effected automatically in accordanc with, say, the speed of an engine with which the compressor is associated, or the air inlet temperature. Each blade D<SP>1</SP> is pivoted at its inner end on a pin D<SP>2</SP> mounted in a spherical bearing E carried by a shroud ring E<SP>2</SP>. At the outer end, a hollow pin D is journalled in a double-row taper roller bearing and carries the cam member G<SP>1</SP> by means of splines and a securing bolt F. In the compresor shown, three rings of adjustable stator blading, which may be follewed by further rings of non-adjustable stator blading, are operated by a common sleeve H, the cam members G<SP>1</SP> of the inlet ring extending in the opposite direction to those of the two other rings. The curvature of the cam slots G<SP>2</SP> may be chosen to impart the same or different pivotal movements to the various rings of blading.
Patent GB-1126483-A (GB)
Title: Separation of straight chain hydrocarbons from mixtures
Inventor: GROSZEK ALEKSANDER JERZY
IPC: C10G25/00
Filed: 1964-09-25
Abstract: 1,126,483. Dewaxing mineral oils. BRITISH PETROLEUM CO. Ltd. 24 Sept., 1965 [25 Sept., 1964], No. 33531/65. Heading C5E. A method of separating long-chain normal hydrocarbons having at least 10 carbon atoms per molecule from their mixtures with other hydrocarbons comprises contacting the mixture with a suitable " layered solid material " selectively to adsorb the normal hydrocarbons. By " layered solid material is meant a crystalline solid in which the constituent atoms form loosely attached layers; examples are molybdenum disulphide, tungsten disulphide, and boron nitride. Graphite is specifically excluded; its use is claimed in Specification 1,126,482. The process is applicable to dewaxing and reducing the cloud and pour points of mineral oils. Preferably the oil is dissolved in a lower-boiling solvent, e.g. a hydrocarbon or an alcohol before treatment.
Patent GB-996908-A (GB)
Title: Improvements relating to heat stretching thermo-plastic yarns and filaments
IPC: D01D10/04
Filed: 1961-09-19
Abstract: 996,908. Finishing yarns. CHEMCELL (1963) Ltd. Sept. 19,1961 [May 18, 1961], No. 33591/61. Heading D1F. [Also in Division H5] In an arrangement for heat stretching thermoplastic, e.g. polypropylene, yarns, the yarn is heated by a curved heating element which comprises a tube A formed of a nickel chrome alloy or of stainless steel which is D-shaped in section, through which the yarn is drawn in contact with the flat wall 61. The tube is enclosed between a pair of heat insulating glass fibre members 35, 37 and its ends are connected via terminals 31, 35, a transformer 51 and a voltage adjusting resistance 57 to an A.C. supply. The yarn is drawn from bobbin 15 through a tensioning device 17 to a system of driven let-off rollers 19 which control the rate at which the yarn is fed to the heating element. The yarn is taken up by rolls 21 which are driven at a greater speed than rolls 19. Both mono-filament and multifilament yarns from about 100 denier to 10, 000 denier after stretching may be processed by the arrangement.
Patent GB-863936-A (GB)
Title: Drawing table
IPC: A47B27/18
Filed: 1959-10-05
Abstract: 863,936. Drawing tables. SAUTEREAU, L. E. F. Oct. 5, 1959 [Oct. 10, 1958; March 9, 1959], No. 33671/59. Class 52(3). A drawing table has parallel motion linkage BIJ mounted on a foot system D by a shaft C to which an arm B is pinnec at N. The arms are locked when cylinder 3 in hollow shaft C is held by stud 7 and links 11 hinged at 12 so that it applies a force to the end of arm I through stud 4 so that at friction plates M1 fixed to the foot systen M2 fixed to arm B at 1 and M3 fixed to arm I at 2 engage each other: the arms are released when frictior plates Ml, M2, M3 disengage on removal of the force by rotating lever 13 fixed to the head 10 of stud 7 so that the links 11 do not lie along a single straight line.
Patent GB-951972-A (GB)
Title: Improvements in or relating to record-changing gramophones
Inventor: ANSAR ANDERS
IPC: G11B17/16
Filed: 1961-09-20
Abstract: 951,972. Gramophone centre-post mechanisms. GARRARD ENGINEERING Ltd. Aug. 31, 1962 [Sept. 20, 1961], No. 33697/61. Heading G5R. A centre-post, consecutive-access mechanism has three blades 15, symmetrically arranged as in Specification 794, 293 to support the lowest stacked record 17 and an inclined step 2, which, in conjunction with a sprag 4, retains the next-higher record 7, when the blades 15 are retracted to allow the record 17 to fall. A further step 9, one record's thickness higher up the post allows additional clearance for the higher records, in case a larger hole in record 7 than in the record above, it tends to prevent the record 7 from being efficiently spragged. Cam means 40, gear-driven (37-39) from the turntable, are followed by means 43' along the path 42, if there are no records in the 7 or 17 positions to resist an outward movement of the sprag 4, whereupon a pin 60, on the next rotation of the cam operates switch-off means (Fig. 6 not shown). If the sprag is resisted oy a record 7 (or 17 if none left in the 7 position), the follower 43 is diverted along the path 54, the vertical component of which retracts the blades 15 to allow a record to fall. The surface 8 is of larger radius and the surface 6 is of smaller radius than the centre-hole of the record 7, which is thus gripped at three places and discouraged from tilting when the record 17 drops-there is no overarm.
Patent GB-1159093-A (GB)
Title: Improvements in and relating to Pneumatic Tyres
IPC: B60C9/02
Filed: 1966-07-27
Abstract: 1,159,093. Pneumatic tyres. MICHELIN & CIE (Compagnie Generale des Etablissements Michelin). 27 July, 1966 [28 July, 1965; 20 June, 1966], No. 33749/66. Heading B7C. In a pneumatic tyre having at least two carcass cord plies 7, 8 extending from bead to bead, the separation of the plies progressively increasing from the mid-height zone to a maximum in the tread region and one of which diverges from the tyre internal wall away from the beads and towards the tread, the separation is preferably effected by the application of heat (e.g. during vulcanization), the cords comprising some which contract during heating and some which do not or contract less. Preferably polyamide and/or polyester or polyvinyl alcohol cords (contracting) are used with rayon, steel or glass cords (non-contracting) or polyamide (more contracting) may be used with polyester (less contracting) cords. The cords may before heating all be disposed in a single ply, or in homogeneous or heterogeneous separate plies. They may lie in radial planes or in cross-laid plies.
Patent GB-1521283-A (GB)
Title: Telephone handset
IPC: H04N1/203
Filed: 1975-08-13
Abstract: 1521283 Handsets DEUTSCHE TELEPHONWERKE UND KABELINDUSTRIE AG 13 Aug 1975 [7 Nov 1974] 33812/75 Heading H4J The hand grip 2 of a telephone handset is made at least as wide as the transmitter 3 and receiver 4 and is formed with a plurality of perforations 5 in the wall thereof facing in the same direction as the transmitter and receiver. The diameter of the perforations is preferably less than the thickness of the grip wall. Such an arrangement is said to reduce acoustic feedback. The perforations may be replaced by pyramid shaped projections.
Patent GB-1028319-A (GB)
Title: Improvements in or relating to packaging for hot-melt adhesives
IPC: B65B63/08
Filed: 1963-08-27
Abstract: A hot melt adhesive having a temperature between 310 DEG  and 400 DEG F. is packaged in the molten state in an easily removable container which is comprised of regenerated cellulose, the container being removed by immersing the package in water which causes the cellulose to swell.  Examples of hot melt adhesive given for packaging in this way are: ...Parts .(1).W.W. Rosin (Refined Wood Rosin).50.0 ..Monoplex DDA (Di-iso-decyl. ..Adipate) .. .. .. ...15.0 ..(Ethyl 702) (Anti-oxidant) ...0.5 ..Elvax 220 (Ethylene-vinylacetate. ..polymer) .. .. ...29.5 ..Polyamide resin .. .. ...5.0 .(2).Terpene-hydrocarbon resin ...25.0 ..Hydrogenated rosin .. ...49.5 ..Polyisobutylene .. .. ...15.0 ..2,6-Di-tert-butylphenol .. ...0.5 ..Elvax 150 (Ethylene-vinylacetate. ..polymer) .. .. ...10.0 .(3).W.W. Rosin (Refined wood rosin).50.0 ..Anti-oxidant (2,6-di-tert-butyl-. ..phenol) .. .. .. ...0.5 ..Monoplex DDA (Di-iso-decyl. ..adipate) .. .. .. ...10.0 ..Elvax 150 (Ethylene-vinylacetate. ..polymer) .. .. ...39.5 .(4).A terpene hydrocarbon resin ...23.2 ..Vistanex LMMH (Polyisobutylene).23.3 ..A low molecular weight poly-. ..ethylene) .. .. .. ...43.0
Patent GB-657060-A (GB)
Title: Colour television system
IPC: H04N11/00
Filed: 1947-12-23
Abstract: 657,060. Cathode-ray tubes. POOLE, R. B. Dec. 23, 1947, No. 33910. [Class 39 (i)] A cathode-ray tube is constructed from a glass cylinder C with its ends sealed by spherical-shaped covers C<SP>1</SP>, the electrode neck extending at right angles to the cylinder but inclined to the plane of the fluorescent screen or mosaic target CFS, the latter being supported on bearings 32 in an insulated chassis frame 17, 18, 33 and movable laterally on grooved rods 31 by means of solenoid-actuated armature rods 60. Buffer springs limit the longitudinal movement of the rods. The screen or target CFS may be plane or curved, and may be double-sided, the other side in the case of a double fluorescent screen serving as a monitoring system. The anode and auxiliary electrodes are supported by insulated rigid members, conductor wires CRC being led in through glass tubes GT sealed in the ends of the envelopes. The anode may, however, be the customary graphite coating, to which a conductor is cemented. The solenoids M<SP>1</SP>, M<SP>2</SP> are actuated under the control of switches 37 comprising insulated tubes 46 provided with metal rings C<SP>1</SP>, C<SP>2</SP>, C<SP>3</SP>, dipping into mercury 'cups 37, the rings being connected to supply direct and through resistances R<SP>1</SP> and R<SP>1</SP> + R<SP>2</SP> respectively. Sliding rods 40 support the cups and are controlled in movement by attachment to crank-pins 42 on the gear train 43, 44, 45; one cup being at its uppermost position when the other is down. Alternate actuation of solenoids M<SP>1</SP>, M<SP>2</SP> occurs to give oscillatory step-by-step movement to the screen CFS. All metal members such as the armature rods 60 may be coated with glass or vitreous enamel. The colour screen CFS comprises a series of glass slides, each bearing alternating lines of red, blue and green fluorescent materials, the glass slides being slightly displaced in assembly on a glass slide backing so that alternating colours occur in both directions. A white strip WS is provided at the bottom end of the screen. The fluorescent screen is replaced by a mosaic target in an image tube, a three-sided collector plate enclosing the mosaic with its two parallel walls near to the end cover walls OW and C<SP>1</SP>. Specification 629,594 is referred to. The Provisional Specification also describes a discharge tube containing both an image target and a fluorescent screen, the two electrode necks being at right angles ; tubes and accessories of glass, porcelain or thermoplastic material; a fluorescent screen comprising strips of plastic material with serrated square or rectangular teeth on each side carrying fluores- .cent material and multi-colour point screens produced by photographing the formed screens and projection tube apparatus comprising hinged members supporting the optical lenses and mirrors and lockable by means of a thumbscrew.
Patent GB-1067727-A (GB)
Title: Apparatus and method for electrolytic development
IPC: G03G15/06
Filed: 1964-08-19
Abstract: 1,067,727. Electrophotographic apparatus. MINNESOTA MINING & MANUFACTURING CO. Aug. 19, 1964 [Aug. 27, 1963], No. 33929/64. Heading G2H. A latent conductivity image, in a photoconductive layer 8, is developed electrolytically by contact with a turbulent upwardly directed stream of electrolyte. The stream is produced by rapidly rotating rollers 2, 3 of such a length that no electrolyte flows above the side edges of web 6 to make contact with conductive backing 7. Motor 14 drives rollers 2, 3 in opposite directions at the same speed and they may be made of insulating material or may consist of stainless steel cores 9 having a smooth covering 10 of insulating material such as polytetrafluoroethylene on an epoxy resin. A battery is connected to electrode 5 and a motor-driven feed roller 12. In a profile projector for machine parts Fig. 2 (not shown), having a viewing screen (23) and an exposure aperture (25) the developing apparatus is arranged beneath the viewing screen so as to provide a permanent record of the image viewed, if desired by the operator.