baber/WOPTO huggingface dataset:
Patent GB-174737-A (GB)
Title: Improvements in uniflow steam engines
IPC: F01B17/04
Filed: 1920-11-02
Abstract: 174,737. Spooner, W. W. Nov. 2, 1920. Cylinders.-The cylinder cover B of a terminal-exhaust engine is provided with a clearance chamber C containing a fluid-actuated lift valve E which may act as a relief valve. The lower side of the piston or diaphragm of the valve E is opened to the atmosphere or steampressure by an oscillated valve G according as the engine works without or with a condenser. The valve G is operated by a piston or diaphragm upon which the condenser vacuum or atmospheric pressure acts. The chamber C when closed is drained by a valve duct and a passage L.
Patent GB-1269404-A (GB)
Title: 0-substituted-2,5-diphenylpyrroles
IPC: C07D207/325
Filed: 1969-06-19
Abstract: 1,269,404. 1-Substituted-2,5-diphenylpyrroles. A. H. ROBINS CO. Inc. 19 June, 1969 [21 June, 1968], No. 31037/69. Heading C2C. Novel 1 - substituted - 2,5 - diphenyl-pyrroles of the general formula wherein R is an amino, hydroxy, 1,2-dihydroxyethyl, 1,3-dioxolan-2-on-4-yl, aryloxy, optionally N-substituted carbamoyloxy, morpholinyl, N - acylpiperidinyl - 4 - carbonyloxy, 1 - acylpiperazinyl - 4 - carbonyloxy, pyrrolidinyl or piperidinyl group, R<SP>1</SP> is a hydrogen, fluorine, chlorine or bromine atom or a C 1-8  alkyl, C 1-8  alkoxy or trifluoromethyl group, and n is an integer from 1 to 5 inclusive, and acid addition salts thereof are prepared (a) by reaction of a 2,5-diphenyl-pyrrole of the general formula with a compound of the general formula X(CH 2 ) n R, wherein X is a halogen atom; (b) by reaction of a 1,2-dibenzoylethane of the general formula with an amine of the general formula NH 2 (CH 2 ) n R; (c) when R is a 1,3-dioxolan-2- on-4-yl group, by reaction of the corresponding compound wherein R is a 1,2-dihydroxyethyl group with phosgene; (d) when R is an N-alkylcarbamoyloxy group, by reaction of the corresponding compound wherein R is a hydroxy group with an alkyl isocyanate; (e) when R is a 1-acyl-4-piperidinylcarbonyloxy group, by reaction of the corresponding compound, wherein R is a hydroxy group with 1-acyl-isonipecotic acid halide; and (f) when R is a 1-acyl-4- piperazinylcarbonyloxy group, by reaction of the corresponding compound wherein R is a hydroxy group with 4-halocarbonyl-1-acylpiperazine; followed optionally by salification of the product. Pharmaceutical compositions having analgesic activity comprise, as active ingredient, a 1- substituted-2,5-diphenyl-pyrrole of the first general formula above or a non-toxic acid addition salt thereof, together with a pharmaceutically acceptable carrier, and may be administered orally or parenterally.
Patent GB-323077-A (GB)
Title: Improvements in and relating to spot light projectors
IPC: F21V17/02
Filed: 1928-10-27
Abstract: 323,077. Holophane, Ltd., and Allpress, H. S. Oct. 27, 1928. Optical-projection apparatus.-A spot-light projector comprises a source of light such as a cylindrical electric lamp bulb 38, a condenser 25 having a circular or other shaped stop 27 of large aperture in fixed relation thereto, an adjustably positioned negative lens 28 located in front of the condenser and stop, and a positive projections lens which preferably comprises two lenses 34, 37 with variable separation. The lens 28 may be arranged between the lenses 34, 37 and the size of the spot may be varied by adjusting the negative lens and or the projection lens. The condenser, stop, and negative lens slide within a nozzle 24 on the lamp casing, the condenser being located against a rib 26 on the nozzle. The negative lens is arranged at one end of a cell 29 so that the cell can be reversed to provide a further range of adjustment, the trapping of air being prevented by a hole 30 and a groove 31 cut in the nozzle. The lens 34 is carried by a celt 33 provided with a shoulder 35 which engages the end of a tube 32, slidably mounted on the outside of the nozzle 24, whilst the lens 37 is carried by a tube 36 slidably mounted on the outside of the tube 32. Behind the lens 37 a conical ring 45 is soldered to the tube 36 and a ring of holes 46 allows the escape of moisture. Alternatively, the nozzle 24 and tubes 32, 36 may be replaced by a skeleton system of telescopic rods inside an outer casing. The lamp casing may comprise sheet metal sides 4 which enter grooves in front. and rear castings 1, 2 which are held together by screws 3, the sides 4 carrying trunnions whereby the projector can be tilted. At the bottom a tray 8 is detachably held by screws 9 passing through slots 10 and provided with nuts 11 having shoulders 12 fitting into recesses in the castings. The tray 8 is narrower than the castings so as to leave side air-gaps, whilst the sides 4 are turned inwards at the top to leave weatherproof air exits between their ends and a cover plate 15. A reflector 18 is carried by a tube 17 which engages an abutment flange 19 on an internal flange 16 of the casting 2, the aperture in which is covered by a plate 20 spaced away by a ring 21 which is apertured at the bottom to form an air entry 22 which co-operates with a slot 23 in the tube 17 and flange 16. Alternatively, the casing may be made with double walls packed with asbestos. The bulb 38 is held against a pair of flanges 39, curved or V-shaped in plan so as to centre the bulb, by a pair of spring arms 40 embracing the bulb, and the pressure of a spring 41 engaging the lamp holder 42 is adjusted by a screw 43. The supply leads pass through a stuffing box 44.
Patent GB-324407-A (GB)
Title: Improvements in or relating to generators for earth inductor compasses
IPC: G01C17/30
Filed: 1928-10-27
Abstract: 324,407. White, A. E., (Pioneer Instrument Co., Inc.). Oct. 27, 1928. Brush-holders; casings; commutators; dynamos, regulating; dynamos, driving; collectors; earth inductor machines.-The shaft 39 of the armature 40 of an earth-inductor compass for aircraft &c. is suspended in a ball-bearing the outer race 41 of which is formed as the zone of a sphere, so that the shaft can tilt in any direction as well as rotate. The shaft 39 is driven from a windmill 30 by means of a flexible shaft 35. The shaft 35 is provided with two heads 34, 36 which slide in the hollow end 38 of the shaft 39 and the shaft 29 of the windmill and are provided with projections engaging with grooves on the insides of these shafts to transmit rotation. To damp oscillation, friction members 52 connected to the shaft 39 rest on a spherical surface 53 concentric with the wall 41. The members 52 are carried on a frame 47 resiliently connected to the outer race of a ballbearing 45 in which the lower end of the shaft 39 rotates by balls 49 secured in place by a coiled spring 50, Figs. 9 and 10. The surface 53 forms the bottom of a casing 15 secured to the frame 12 of the machine by springs 20 and detachable stud fastenings 23. When the fastenings 23 are detached the casing 15 is suspended by slotted arms 24 so that the members 52 are free of the surface 15. Provision is thus made for testing and adjustment both of the machine and of a compensating device for semi-circular deviation and heeling error of known type enclosed in a, casing 93 secured to the bottom of the casing 15. The commutator segments 55 are formed as segments of a sphere concentric with the race 41 so that they maintain contact with the brushes 58 as the device tilts. The brushes 58 are pivoted on terminal pillars 59, Fig. 6, carried by an insulating ring 65, and are pressed against the commutator segments by U-shaped springs 62, Fig. 7. They are removably secured to the pillars 59 by blade springs 64 carried by insulating pillars 63. The ring 65 can be rotated by an adjustable worm and carries slip rings 60 to which the pillars 59 are connected. On the rings 60 bear spring plungers 78, 79, Fig. 2, carried in an insulating casing 80 inserted in an opening in the frame of a machine and provided with a projection 81 to secure its being placed in the right position. Leads 83, 84 connected to the indicating devices of the apparatus are soldered to the plungers 78, 79. Lubricant contained in the lower part of the casing is conveyed to the commutator by an axial passage 91 in the end of the shaft 39, in which is a screw blade carried by the frame 47, radial passages 89, 90 and vertical passages 87, 88.
Patent GB-453473-A (GB)
Title: Improvements in or relating to cinematographic cameras
IPC: G03B19/18
Filed: 1935-11-12
Abstract: 453,473. Kinematograph cameras. LAMPEN-UND METALLWARENFAB - RIKEN R. DITMAR GEB. BRUNNER AKT.- GES., Erste Haidequerstrasse, Vienna. Nov. 12, 1935, No. 31259. Convention date, Nov. 16,1934. [Class 97 (i)] A camera, operable by a spring motor &c. at two or more speeds while held in the hand, has one or more actuating members, e.g. push-buttons, arranged within reach of the operator's fingers while holding the camera, and serving to start the mechanism at normal speed, to change the speed, or to start the mechanism at a different speed. As shown. two push-buttons 2, 3 are provided in the camera front, and respectively permit operation of the camera at normal and high speeds when depressed. The button 2 turns a lever 12 to free a tooth 11 on a disc 10 carried by a shaft 7 driven through a gear 9 by the motor. The shaft 7 drives a shaft 8 through gears 5, 6, and the shaft 8 carries a disc 16 on which braking shoes are pivoted to engage within a drum 14 and determine normal speed. The drum 14 is held stationary, during normal speed, by a pin 18 engaged by a projection 19 on a lever 20. Depression of the button 3, while the button 2 is depressed, frees the projection 19 from the pin 18, and permits the drum 14 to rotate under the action of the braking shoes within it. Similar shoes pivoted on the other side of the disc 16, within a fixed drum 15, engage the drum 15 to limit the speed when the high speed has been attained. The lovers 12, 20 may have extensions 121, 201 to permit, by their engagement, the operation of the mechanism at high speed by depression of the button 3 alone. A single button or other member may replace the buttons 2, 3, the extent of its depression or other variation in its operation determining the speed of operation.
Patent GB-622279-A (GB)
Title: Air cleaner and filter unit therefor
IPC: B01D39/14
Filed: 1945-11-21
Abstract: 622,279. Air cleaners. HOUDAILLEHERSHEF CORPORATION. Nov. 21, 1945, No. 31374. Convention date, June 11. [Class 8(ii)] An air cleaner filter unit 14 comprises crimped vegetable or mineral fibre 22 extending lengthwise of the unit and bonded together at points of contact at intervals along their lengths. The units are prepared by fireproofing bundled sisal fibres, impregnating with thermoplastic or thermosetting resin and baking as described in Specification 622,281. An oil bath filter in which such units 14 may be disposed comprises an upper casing 1 having louvred air inlets 11 and an inclined outlet duct 20, and a lower unit supporting casing 2 with a detachable oil bath 18. In a modification, the lower casing holds two superposed units 14.
Patent GB-174466-A (GB)
Title: Improvements in and relating to the bearing brackets for warp beams for looms
IPC: D02H13/28
Filed: 1920-11-06
Abstract: 174,466. Baron, W. W. Nov. 6, 1920. Framework. - The wood packing or other bearing-piece c, Fig. 1, is held firmly locked against accidental displacement both sideways and endways in the brackets a, Figs. 1 and 4, for supporting. the pikes of loom warp beams by forming these with a dovetail recess b engaged by a corresponding projection on the piece c. The bearings may be of half-channel shape, the loom side forming one side of the bearing for the warp-beam pikes. The recess and projection may be square-ended; or the packing may be recessed so as to fit over a corresponding projection or over the projecting head of a screw screwed into the bracket; or the packing may be secured in position by a countersunk screw. The bracket a may be adjustably secured by a bolt and nut f to an elbow-piece a<1>, Figs. 1 and 4<a>, which is bolted to the loom side, so that the brackets a at each side of the loom may be adjusted towards each other when the beam is shortened. The piece a<1> has thickened parts and is otherwise shaped, as shown, so as to be flush with the part a. A ledge a<3> on the piece a<1> engages a rabbet in the bracket a, and a snug a<4> helps to position the bracket and prevent it from binding against the loom side. The bracket a may be made in one with the piece a'.
Patent GB-988785-A (GB)
Title: Tool for assembling or disassembling power transmission chains
IPC: F02K1/62
Filed: 1962-08-16
Abstract: 988,785. Extracting and inserting rivets. MORSE CHAIN CO. Aug. 16, 1962 [Sept. 6, 1961], No. 31493/62. Heading B4C. A tool for extracting and inserting rivets 64 in the links 62 of chains 17 comprises a base 11 carrying a jaw 56 for locating adjacent links and a power-actuated hammer 15 adapted to be secured to the base by a clamp 22, 23 and fitted with a driving pin 32 for extracting or inserting the rivets, means 30 being provided for actuating the hammer. The jaw 56 is slidably mounted on the base 11 and formed with recesses 60 for locating the bushes 61 of the chain, the jaw co-operating with a similar jaw 55 slidably mounted on a clamping bar 12 hinged at 42 to the base. The hammer, which may be a pneumatically-driven percussive tool as shown in Fig: 1, is provided with a body portion slidable in a split boss 24 on the base, the upper and lower portions 22, 23 of the boss being drawn together to clamp the hammer by means of a screw 35 and pivoted handle 40. The base is formed with a stop 16 adapted to resist the thrust of the hammer and also secure the clamping bar by means of a pair of lugs 21 and a pin 46 after the chain has been located in the jaws of the tool. In operation, when it is desired to remove a rivet, the clamping bar is raised and the chain links located between the jaws, the latter being moved against the stop 16. A driving pin 32 is then fitted into the hammer and, after the clamp handle 40 has been released, the hammer is moved to bring the end of the driving pin into engagement with the rivet. The clamp is then tightened and the hammer operated to drive out the rivet through a hollow bush 66 and tube 80 in the stop. To insert a rivet, a driving pin having a bore to receive the end of the rivet is fitted into the hammer. In order to suit various widths of chain, a spacer member 65 may be located between the latter and the stop.
Patent GB-1016450-A (GB)
Title: Writing instrument
IPC: B43K8/06
Filed: 1963-08-09
Abstract: 1,016,450. Reservoir marking instruments. C. SCHREUR, and S. E. LACY. Aug. 9, 1963 [Aug. 15, 1962], No. 31511/63. Heading B6P. In a reservoir pen having a reservoir 11 filled with an absorbent mass 17, the nib 14 comprises an elongate narrow tube 20 of seamless synthetic plastic material which compactly encloses capillary ink feeding material 21. The tube 20 enters the barrel 11 of the pen through a hexagonal hole 13 which allows air to enter the reservoir through passages 24. The tube is of such a frictional fit in the hole 13 that a force in excess of the force produced with normal writing pressure moves the tube axially in the hole 13.
Patent GB-1122597-A (GB)
Title: Process for the production of primary amines
Inventor: PELSTER HEINRICH
IPC: C07C209/36
Filed: 1965-07-23
Abstract: A primary amino compound is produced by reducing the corresponding nitro compound in an aqueous medium in the presence of sulphuric acid with sulphur dioxide or a solution thereof or a neutral or acid salt of sulphurous acid in the presence, as a catalyst, of hydriodic acid, a substance which forms hydriodic acid under the reaction conditions, a metal chosen from Groups IB, IIB, IV, VA, VIA and VIII of Mendeleef's Periodic Table, an alloy of one or more of these metals or a salt of one of these metals, at a temperature of from 30 DEG  to 250 DEG  C., and recovering from the reaction mixture the amino compound which is formed.  Examples describe the production of 1-aminonaphthalene-3,6,8-trisulphonic acid, 3-aminobenzene sulphonic acid, 1-aminonaphthalene-6-sulphonic acid, 1 - aminonaphthalene - 4,6,8 - trisulphonic acid, 2-aminophenol - 4 - sulphonic acid, 6 - amino - 2 - naphthol - 1,4 - disulphonic acid, 6 - amino - 4 - hydroxy - 1 methylbenzene - 2 sulphonic acid, 2 - amino - 4 - chloro - 6 - nitro phenol, 1,2 - phenylene - diamine, 2 - aminophenol, 6 - chloro - 2 - aminophenol - 4 - sulphonic acid, 4 - chloro - 2 - aminophenol - 6 - sulphonic acid, mixtures of 1 - aminonaphthalene sulphonic acids, 2-aminonaphthalene-4,8-disulphonic acid, 5-aminoquinoline and methylamine.
Patent GB-379562-A (GB)
Title: Improvements in and relating to front end constructions for vehicle bodies
IPC: B62D25/00
Filed: 1931-11-14
Abstract: 379,562. Vehicle bodies. GROVES, W. W., 30, Southampton Buildings, London.-(Briggs Manufacturing Co. ; 11631, Mack Avenue, Detroit, Michigan, U.S.A.) Nov. 14, 1931, No. 31594. [Class 108 (i).] An inner front end stamping for a body front construction of a motor vehicle is pressed from a single metal sheet and comprises channel-shaped pillars 3, 4, Fig. 1, and upper and lower channel-shaped headers 1, 2. In the form shown in Fig. 4 the one-piece construction comprises wings 8 integral with and extending forwardly of the pillars for attachment to the dash 9, flanges 10 being provided for attachment to the wooden sill members 11. The upper flange 12 of the windshield header is also turned upwardly as shown for attachment to the body. Fig. 5 shows the provision of a windshield bracket 17 which merges into the flange 19 of the pillar 20. Figs. 6 and 7 show, secured to the pillars, brackets 21 to which is secured at 25, 26 a bar 24. The cowl 27 is secured to the bar by means 30 and strip 28, apertures 31 being provided for the entry of air deflected by the header 22.
Patent GB-894518-A (GB)
Title: Improvements in or relating to permanent magnets
Inventor: RYDER NORMAN
IPC: H01F7/02
Filed: 1959-09-16
Abstract: 894,518. Casting metals. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 8, 1960 [Sept. 16, 1959], No. 31599/59. Class 83 (1). [Also in Groups XXXV and XXXVI] A permanent magnet, for use in measuring instruments, has a body of permanent magnet material cast or sintered to high permeability ferromagnetic polepieces. On cooling, polepieces 1, 2 are retained in intimate contact with the magnetic body 5 due to the grip on the machined surfaces of the undercut ribs 3, 4. The magnet is used either inside Figs. 1, 2, or outside Figs. 3, 4 (not shown), the moving coil of an instrument; or as an armature attracting device, Figs. 5, 6 (not shown).
Patent GB-756299-A (GB)
Title: A device for measuring the mass flow of flowing media, particularly gas consumption meter
IPC: G01F1/80
Filed: 1954-11-02
Abstract: 756,299. Measuring fluid flow. PROPOSTO, S. D. Nov. 2, 1954, No. 31660/54. Addition to 711,109. Class 40(1) The invention comprises an improvement to the parent Specification, wherein apparatus for determining the rate of flow of a fluid of variable specific gravity in terms of weight comprises means for measuring the torque required to rotate a symmetrical body in the flowing fluid at a constant speed about an axis perpendicular to the direction of flow, and is characterised in that the torque/flow characteristic of the device is made linear at low flow speeds by making the symmetrical body in the form of a paddle wheel having a series of blades 2 (Figs. 1 and 2) and locating it in a flat flow conduit 3 of rectangular crosssection which closely surrounds the paddle wheel.
Patent GB-1073344-A (GB)
Title: Apparatus for the aligning of track and particularly curved sections of track
IPC: B61K9/08
Filed: 1964-08-04
Abstract: 1,073,344. Setting out track curves. F. PLASSER, [trading as FRANZ PLASSER BAHN BAUMASCHINEN]. Aug.4, 1964 [Aug. 2, 1963], No.31720/64. Heading G1F. Apparatus for aligning track curves in railway track by means of chords moving gradually along the track and members e.g. potentiometers for measuring the varying arc heights at the middle of the chords, is characterized by the provision  of five chords 31, 32, 33, 34, 35, associated with an aligning machine M, the chords being adapted to be brought into action co-operating in groups of three chords or individually, selectively as and when required. The chords are arranged between tracks in the usual way, the chords 31, 32, 33 and 34, 35 being disposed respectively in line behind one another. Electrical circuitry is described in the Specification which allows the chords 31, 32 and 34 to be used for marking in one direction along the track and the chords 32, 33 and 35 in the other direction, or to allow the arc of a single chord 34 or 35 depending on the direction of marking. The arrangement also has provision for allowing the desired arc heights when known to be set, and for indicating when these desired values have been achieved, the travel of the apparatus along the track between the set points also being accommodated.
Patent GB-898897-A (GB)
Title: Improvements in or relating to devices for the absorption of mechanical energy
Inventor: HOLMAN HERBERT EDWARD
IPC: H02K49/00
Filed: 1957-10-12
Abstract: 898,897. Fluid friction brakes. ELECTRIC & MUSICAL INDUSTRIES Ltd. Sept. 19, 1958 [Oct. 12, 1957], No. 31930/57. Class 103 (1). [Also in Groups XVI, XX, XXXV and XXXVIII] A magnetically controlled fluid brake mechanism, especially adapted for use with webfeeding apparatus has a vane member 3, of ferro-magnetic material, which is rotatable, with a small clearance in a drum member 1 of non-magnetic material containing a viscous oil or silicone fluid. The member 3 is freely journalled inside the member 1, but is restrained from free rotation by the field from an appropriate permanent or electromagnet. Braking is thus effected by the flow of the viscous liquid through the small annular gaps between the member 1 and 3. The drum is rotated either directly by feeding the web over it or by shaft means attached to one end (Figs. 1, 4, not shown). For use, independently or additionally, as a dynamometer, additional pointed arms 15 (Fig. 6) are added to the member 3 and magnetic sensing apparatus, represented diagrammatically by the polepieces 17 measure the displacement of the member 3 from its neutral position.
Patent GB-407455-A (GB)
Title: Means for preventing undesired arc formation in electric discharge apparatus
IPC: H01J13/16
Filed: 1932-11-11
Abstract: 407,455. Discharge apparatus. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Võsteras, Sweden. Nov. 11, 1932, No. 31946. Convention date, Nov. 14, 1931. [Class 39-(i).] To prevent undesired formation of a cathode spot on parts of the tube which temporarily assume a negative voltage, such parts are composed of or covered with materials having a resistance of at least 1 ohm /cm. The anode 1, Fig. 1 may be composed of metal such as iron or graphite, and have a surface covering of silicon carbide. The anode shield, or the grid, or both, may be covered with the material, or the anode may have fingers 6, Fig. 4, which are composed of or tipped with the material in addition to a covering on the anode. Specification 341,911 is referred to.