baber/WOPTO huggingface dataset:
Patent GB-584285-A (GB)
Title: An improved automatic control for hydraulic jacks
IPC: B66F3/30
Filed: 1944-08-21
Abstract: 584,285. Hydraulic machines. AIRCRAFT HYDRAULIC APPLIANCES, Ltd., WYLIE, H. N., and BEZANT, E. C. Aug. 21, 1944, No. 15909. [Class 69 (ii)] Means for reducing piston speed during the stroke of a hydraulic jack comprises a member 5 secured to the cylinder 2 and connected to the supply and exhaust pipe 7, and containing a slidable tube 8 projecting into the cylinder and adapted to make a complete or partial seal with the piston when the latter approaches that end of its stroke. The tube is pressed into its extreme position by a spring 10 and passes with adjustable clearance through a tapered bush 9. Thus, when the end of the tube is sealed by the piston, exhaust takes place through the clearance, which is adjustable by means of a screwed plug 6 to determine the piston speed. The bush may be divided to facilitate adjustment or may be of rubber. Alternatively, the bush may be a tight fit in the tube and the necessary throttled openings provided by slots in the end of the tube or by holes therein. When a progressively decreasing speed is desired, the tube may be of varying diameter along its length or alternatively it may be provided with spaced holes 18.
Patent GB-117870-A (GB)
Title: Manufacture of Potassium Compounds from Glauconite and like Minerals.
Inventor: TSCHIRNER FREDERICK
IPC: C01D3/08
Filed: 1917-11-02
Abstract: 117,870. Tschirner, F. Nov. 2, 1917. Potassium salts, obtaining from complex silicates. Potassium chloride is obtained from glauconite (greensand marl) or the like by heating to 800-820‹ C. a mixture of the mineral with " lime sand " (grey calcareous marl), chalk marble, common marl, calcium carbonate sludge, or corresponding compounds of magnesium, barium, or other alkalies or alkaline earths, and with calcium sodium or other chloride or in presence of hydrochloric acid gas; or the mineral may be heated first with the alkaline reagent and then with the chloride or vice versa; or the mineral may be heated with 'a mixture of slaked lime and bleaching powder. Alternatively, the chloride reagent may be omitted, the other materials being first heated to 600‹ C. and then ground in water and treated with chlorine, dried, and finally heated to 800-820‹ C. The product is leached to obtain potassium chloride which is separated from the other soluble materials in known manner.
Patent GB-361932-A (GB)
Title: Flying machine
IPC: B64C39/00
Filed: 1930-05-26
Abstract: 361,932. Aeroplanes. FITZGERALD, J. J., 37, Upper Mt. Pleasant Avenue, Rathmines, Dublin. May 26, 1930, No. 16173. [Class 4.] An aeroplane. Fig. 1, is fitted with three pairs of cantilever wings s of successively reduced area extending from the body 5 at different points in its length, the front wings 16 being arranged above, the centre wings 18 at the level of, and the rear wings 20 being set below the horizontal centre line of the body and each wing being entirely clear of the wing preceding it. Ailerons extend the full span of each wing. The aeroplane shewn is of the amphibian type having two pairs of retractible wheels mounted on rearwardly swingable arms 14 and a body with a boat-shaped undersurface 12 having a keel portion 121.
Patent GB-1486406-A (GB)
Title: Special lighting effect generating laser device usable as accessory for theatrical equipment
IPC: F21S8/00
Filed: 1976-04-21
Abstract: 1486406 Light wall generating device E PEREIRE J-P CHAMBARET and Y CHAMBARET 21 April 1976 16207/76 Heading A6M [Also in Division F4]  A light wall generating device comprises a low power laser 4 emitting in the visible spectrum, a movable mirror 3 co-operating with the laser beam to ensure scanning in one plane, a dark chamber containing diffusing particles and means 5 for giving the mirror a movement whose speed is such as to ensure that the reflected laser beam reassumes the same position at a frequency exceeding 25 Hz. In the arrangement shown the mirror is a rotating prism and a substantially closed prismatic band with inner reflecting surfaces 1a, 1b, 1c, 1d, is provided in the scanning plane P so that a wall of light is produced dividing the chamber into two areas A and B. Additional means may be provided for producing a flux of particles in the immediate vicinity  of the scanning plane.
Patent GB-129373-A (GB)
Title: Improvements in Electric Regulating Switches for use with Ordnance and for other purposes.
IPC: F41G5/08
Filed: 1917-11-07
Abstract: 129,373. Wilson, J. S., Dalby, W. E., and Armstrong, Whitworth, & Co., Sir W. G. Nov. 7, 1917. Sights and methods of sighting.-Consists of a resistance switch, for use with ordnance sighting- apparatus, which has its contact strips arranged to give a large number of resistance steps with a small angular movement, the requisite movement for each step being less than the angular width of the contact strips. In the simple form shown in Fig. 1, a disk carries contact strips a<1>, a<2> - - &c., b<1>, b<2> - - &c., connected as shown to a resistance and working under fixed contacts a, b. As the plate is rotated the strip a<1> leaves the contact a to cut out the first resistance section, and the strip b<1> leaves the contact b to cut out the second section. The change of circuit thus occurs alternately in the two series of contact strips. The number of fixed contacts and groups of contact strips may be multiplied, and the contacts a, b may be mounted on arms arranged to turn about centres near the circumference of the disk. In the form shown in Figs. 5 and 6, five disks a<1> - - a<5> are mounted on the axle b. These disks are used for regulating the vertical and lateral deflexion, the tangent angle of elevation, the fuse scale, and for converting the lateral measurement if the telescope is moved in azimuth. Each disk has five sets of contact strips c<1> - - c<3>, and the resistances are wound on bobbins f secured to the back of the disk. Four spindles l arranged round the circumferences of the disks carrv four contact arms h for each disk. The spindles are geared together so that the arms h traverse their respective groups of contact strips simultaneously. A pointer indicates the height of target for which the contact arms are set. The disks, for regulating the fuse scale and tangent angle of elevation may be advanced or retarded relatively to the other disks and are connected in separate indicating circuits. Specifications 6801/15 and 125,402 are referred to.
Patent GB-222546-A (GB)
Title: Improvements in systems for transmitting motion
IPC: F15B7/02
Filed: 1923-06-23
Abstract: 222,546. Whidbourne, H. June 23, 1923. Single stroke movement, effecting.-A pneumatic or hydraulic apparatus for transmitting writing or other motion comprises at one end two or more flexible diaphragms in stationary chambers or two or more flexible walled stationarv boxes 21, 22 arranged at right angles to one another, and adapted to receive motion from a crank or movable member 7. and at the other end a similar unit 23, 24 adapted to impart similar motion to a crank 15, the boxes 21, 23 and 22, 24 being connected respectively by pipe lines 17, 18 charged with liquid or air. In the form shown, the crank pins 7, 15 are connected to the fiexible boxes by links 5, 6, 13, 14, and the crank pin 15 of the driven crank is adjustable towards and away from the axis of the crankshaft 16 by means of a screw 25. In a modified arrangement, the links are replaced by slotted frames fixed to the boxes, the slots being arranged at right angles and the pins for impa,rting or receiving motion passing therethrough. When liquid is employed in the pipe lines and boxes, an air chamber is provided in each pipe line to allow for expansion &c. When air is employed, small leaks 30 are provided in each system so that the mean pressure remains that of the atmosphere.
Patent GB-457640-A (GB)
Title: Composite piston rings
IPC: F16J9/06
Filed: 1936-06-12
Abstract: 457,640. Piston-rings. WELLWORTHY PISTON RINGS, Ltd., Stanford Road, Lymington, Hampshire.-(Solenberger, D. M. ; 1966, East 66th Street, Cleveland, Ohio, U.S.A.) June 12, 1936, No. 16424. [Class 122 (i)] In piston-rings comprising split laminations 7 expanded by a spring 4 at least one lamination is of ferrous metal and another of aluminium or aluminium alloy. The aluminium laminations are preferably placed between wrought iron or steel. Suitable materials are steels having a carbon content of 0À15 per cent to 0À25 per cent or 0À65 per cent to 0À76 per cent and the material known under the Registered Trade Mark " Duralumin." The ring dimensions and method of selecting suitable materials are as described in Specification 457,639. Specifications 427,256, 435,359,451,334, and 457,612 also are referred to.
Patent GB-183332-A (GB)
Title: Improvements connected with motor cycle and like saddles
IPC: B62J1/06
Filed: 1921-06-16
Abstract: 183,332. Brooks & Co., Ltd., J. B., Champ, G. H., and Kay, G. E. O. June 16, 1921. Saddles.-A motor-cycle &c. saddle top is supported on three parallel-motion members connected at opposite ends to the saddle and frame, such members being arranged two in one plane and one in another and including leaf springs. As shown in Fig. 3, the two members in one plane consist of laminated leaf springs 9, adjustably secured at one end by bolts and clamps to transverse brackets 12 on the frame, and secured at the other end to plates 4 adjustable vertically and angularly on brackets 3 bolted to the under-plate of the saddle top 1. The other member consists of a link 19, which may also be a spring, pivoted to a clip 21 and to the saddle top 1, and arranged in a central position with reference to the springs 9. The forward ends of the springs and link are preferably attached to the frame midway between the axes of the road wheels. Specifications 161,364 and 166,796 are referred to.
Patent GB-254509-A (GB)
Title: Improvements in guards for safeguarding operators on power presses
IPC: F16P3/06
Filed: 1925-07-01
Abstract: 254,509. Wells, A. W. J. July 1, 1925. Guards, controlling.-Reciprocating or swing- ing guards for power presses &c. are provided with an inwardly-extending arm or like part adapted to pass from side to side across the work-space and beneath the plunger or close to its path, in order positively to remove the operator's hand. The guard 1, which may be a vertical rod or plate (as shown), is moved along a guide 2 and carries an arm 6 of fibre &c. adjustably secured in a slot 13. The arm may be adjustable in length, and is preferably hinged as shown at 7, 10, Fig. 4, so that it may serve as a work-ejector, one hinge part having a rounded corner 16 and a flat 17, whereby the arm is rigid when removing the operator's hand, but, when ejecting the stamped blank on the return movement, may yield against a spring 18 if, due to maladjustment, it should foul any rigid part. of the, press. Specification 238,415 is referred to.
Patent GB-1125066-A (GB)
Title: Operational amplifier capable of providing analog logic functions
IPC: G06G7/25
Filed: 1967-04-13
Abstract: 1,125,066. Limiters. UNITED AIRCRAFT CORP. 13 April, 1967 [7 June, 1966], No. 16951/67. Heading H3T. An arrangement giving an output related in a desired manner to the input comprises an operationol amplifier the output of which is coupled to first and second low impedance means respectively coupled to first and second voltage sources for blocking the output voltage and producing a low output impedance when the output voltage attains a predetermined relationship with respectively the first or second voltage source. Amplifier 130 feeds output terminal 139 via a parallel - connected pair of complementary transistors 144, 152 acting as emitter-followers, overall negative feedback being applied to the arrangement by means of resistors 142, 148. The collectors of the transistors 144, 152 are each connectable by means of separate switches 146, 154 respectively to (i) earth (ii) a floating terminal, or (iii) a point of fixed potential, adjustment of the switches determining the points at which the output of the arrangement is limited (Figs. 3B-3F, not shown).
Patent GB-1316034-A (GB)
Title: Imidazole-ribosyl cyclophosphates
IPC: A61K31/7052
Filed: 1971-05-25
Abstract: 1316034 Imidazole ribosyl cyclophosphates BOEHRINGER MANNHEIM GmbH 25 May 1971 [27 May 1970] 16951/71 Heading C2P The invention comprises compounds of the Formula I where R is hydrogen or -(CH 2 ) n -A, n is 2 or 3, A is -SO 3 H or -COR<SP>1</SP> and R<SP>1</SP> is OH, C 1-6  alkoxy, alkylamino or dialkylamino, and the salts thereof. Compounds of Formula I in which R is other than hydrogen may be prepared by reacting inosine-3<SP>1</SP>,5<SP>1</SP>-monophosphate with a compound of the Formula II where X is -CO- or -SO 2 -, heating the product with an aqueous solution of an alkali metal hydroxide and optionally, when an acid is obtained, converting the acid into an ester or amide. Compounds of Formula I in which R is hydrogen may be prepared by (a) reacting 2<SP>1 </SP>- O - acetyl - inosine - 3<SP>1</SP>,5<SP>1</SP> - monophosphate in a polar organic solvent with a metal hydride and then with chlorodimethylether, and heating the N<SP>1</SP> - methoxymethyl - 2<SP>1 </SP>- O - acetyl - inosine - 3<SP>1</SP>,5<SP>1</SP> - monophosphate obtained with an alkali metal hydroxide solution, or (b) by dissolving the 51-phosphate of 5-amino-1#-D- ribosyl-4-imidazole carboxamide and morpholino - N,N - dicyclohexylcarboxamidinium salt in a pyridine-water mixture, removing the water and heating the solution obtained with dicyclohexylcarbodiimide. The compounds of Formula I may be used as the active ingredients in pharmaceutical compositions, together with a solid or liquid diluent or carrier. 2<SP>1 </SP>- O - Acetyl - inosine - 3<SP>1</SP>,5<SP>1</SP> - monophosphate triethylammonium salt may be prepared by reacting inosine-3<SP>1</SP>,5<SP>1</SP>-monophosphate with acetic anhydride and triethylamine.
Patent GB-516726-A (GB)
Title: Improved non-skid girdle or overall chain for twin tyred road vehicle wheels
IPC: B60C27/08
Filed: 1938-06-08
Abstract: 516,726. Wheel tyres. KENNEDY, D. S. June 8, 1938, No. 1702.1. [Class 144 (ii)] [Also in Group XXXI] A detachable tread band for wheels fitted with twin tyres, or for use as an endless track for such wheels arranged in tandem comprises a. series of twisted' tread members a adapted to bridge the tyres t, t<1> and each recessed into a tongue c housed between the tyres. The tongues c are connected by chain links d, d<1> which may' be adjusted by the eccentric-device described in Specification 385,747. Strips g may be fitted between the tyres and the tread members, and welded to the latter and the tongues c.
Patent GB-672502-A (GB)
Title: Toy watch ticker
IPC: A63H3/28
Filed: 1950-07-07
Abstract: 672,502. Toy watches. EVER TICK CORPORATION. July 7, 1950 [Dec. 29, 1949], No. 17062/50. Class 132 (iii). A ticker e.g. for a toy watch, produces a noise which is stated to continue for a substantial period of time after the watch has been moved. In Fig. 1, a watch includes a ticker which comprises a leaf spring 30 secured to a lug 32, and having a weight 35 attached to its free end. A lateral arm 40 is secured to the spring at a point approaching the lug 32 and strikes a lug 14 during each vibration thus producing a tick which is amplified by the watch case. The engagement of the arm 40 with the lug 14 effectively moves the spring pivot point and thus alters the speed of the spring during each vibration. This is said to maintain oscillation of the spring for an increased time. Modifications have additional lateral arms and lugs which produce a more rapid tick. Different methods of making up the spring-lateral arm assembly are specified. The watch hands may be set with a dummy winder knob 28.
Patent GB-576137-A (GB)
Title: Improvements in and relating to fasteners of the rotary stud and socket type
IPC: F16B5/10
Filed: 1943-10-18
Abstract: 576,137. Stud -- and - socket fastenings. UNITED-CARR FASTENER CORPORATION. Oct. 18, 1943, No. 17076. Convention date, Oct. 16, 1942. [Class 44] In a cowling or like fastening of the kind in which a rotary stud 3 engages a socket member floatably mounted to allow limited lateral movement for alignment of stud and socket, the socket is mounted by means of an attachment plate 15 secured as by rivets 20 to the support 1 and having socket-retaining portions which overlie extensions 8 of the socket baseplate, at least one of said portions having an opening or throat through which the corresponding extension 8 can be sprung to allow assembly of the socket on the attachment plate after the latter has been secured in place. As shown these overlying portions comprise an integral upstanding lug 22 and an integral bent-over lug 21, leaving a throat 23 between their free ends. As shown there are two socket-retaining portions both having oppositely disposed open throats 23, but one of said throats may be substantially or entirely closed. The particular fastening shown has a stud rotatably mounted on cowling 14, and with radial arms 5 passed through and engaging by partial rotation with an upstanding cam-seat 10, spring lugs 11 co-operating with arms 5 to retain the stud against accidental release as described in Specification 557,676. The invention is referred to as a development of the attaching member described in Specification 573,413.
Patent GB-1462980-A (GB)
Title: Pressure-sensitive record material employing alkyl naphthalenes as solvents for dye precursors
IPC: B41M5/165
Filed: 1974-04-18
Abstract: 1462980 Pressure sensitive record material CHAMPION PAPER CO Ltd 18 April 1974 [23 April 1973] 17135/74 Heading D2B Pressure sensitive record material comprises a substrate bearing isolated droplets of an oily solution of a colourless, chromogenic dye precursor material in an oil, which is a halogen-free solvent for the dye precursor material and which consists essentially of a mixture of (a) methyl-, ethyl-, or isopropyl naphthalene and (b) a dialkyl naphthalene in which each alkyl group has from 1 to 4 carbon atoms, with or without (c) a trialkyl naphthalene in which each alkyl group has from 1-4 carbon atoms. The dye precursor material may be crystal violet lactone, benzoyl leuco methylene blue, or a mixture thereof. Other chromogenic compounds are also specified. The droplets may be encapsulated. The oil may also contain naphthalene or a non-halogenated diluent such as a high-boiling saturated aliphatic hydrocarbon, high-boiling alkyl benzene, or coconut oil.
Patent GB-964671-A (GB)
Title: Improvements in or relating to typographical linecasting machine galley
IPC: B41B11/72
Filed: 1962-05-04
Abstract: 964,671. Type-bar-making machines. HARRIS-INTERTYPE Ltd. May 4, 1962 [May 4, 1961], No. 17139/62. Heading B6W. Galley mechanism.-A, line-casting machine has a multiple-shelf galley comprising a primary shelf 10 and a secondary shelf 26, a slug-intercepting member 42 movably attached to the secondary shelf and a trigger element 52 attached to a slide 20 on the primary shelf which, when the primary shelf is filled with slugs 14 to capacity, causes the member 42 to be moved to an operative position in which it causes slugs to accumulate on the secondary shelf. The galley is supported on the machine by brackets 16, 18 and slugs are delivered thereto from a galley shoot 57. The member 42 is a perforate bar, shown in plan in Fig. 4, slidable between the underside of the shelf 26 and a retaining plate 28 fixed thereto by rivets 30, 32, 34 and spacers 36, 38, 40 which pass through slots in the member 42. The member is biased to the right, as shown, by a spring 48, and is retained in the retracted, Fig. 4, position by the engagement of a surface 50 of a slot 44 with the spacer 36. In this position of the member 42 slugs 14 are free to fall from the shoot 57 on to the shelf 10 where they are stacked against the slide 20 by a slug lever 24, the slide 20 being retained on the shelf 10 by a spring clip 22 and being moved from an extreme right-hand to an extreme left-hand position as the slugs are stacked on the shelf 10. As the slide 20 reaches its extreme left-hand position the trigger element 52 thereon, which extends upwards into the plane of the member 42, engages a cam surface 54 on the member and cams the member horizontally so that the surface 50 of the slot 44 is disengaged from the spacer 36 and the member is moved by the spring 48 to the full-line position shown in Fig. 2. In this position a portion 56 of the member 42 projects into the path of the slugs as they fall from the shoot 57 thus preventing them from falling to the shelf 10 and allowing them to be stacked by the slug lever 24 on the shelf 26 where they are supported by a slide 58 similar to the slide 20. As the slide 58 reaches its extreme left-hand position it closes a microswitch 64 which completes a circuit to disengage a clutch in the drive of a perforated tape operating unit for the machine. Line casting then ceases and a warning light is lit on the machine or an audible signal is sounded. When the galley has been emptied the slides 20, 58 and member 42 are reset manually.
Patent GB-909819-A (GB)
Title: Method for polishing glass sheets
IPC: B24B7/24
Filed: 1961-05-11
Abstract: 909,819. Polishing glass sheets. PITTSBURGH PLATE GLASS CO. May 11, 1961 [May 25, 1960], No. 17198/61. Class 60. A method of polishing a glass duct having breaks therein comprises providing relative movement between at least one polishing runner having a felt face maintained in rubbing contact with a surface of the glass and masking the breaks from contact with the  polishing felt whilst maintaining the rubbing contact and the relative movement. The masking of the break or breaks is effected by the  use of pressure-sensitive adhesive tape or strip material 12 applied to the break 11, the tape may be of aluminium 2 inches wide having a thickness of 0.005 inch. The glass sheets are continuously conveyed in series through a polishing apparatus by conventional means, broken sheets and the immediately adjacent sheets being continuously contacted by the runners, so that polishing is effected on all areas excepting those masked by the tape.
Patent GB-572911-A (GB)
Title: Improvements in electric reflector fires
IPC: F24C7/06
Filed: 1944-11-18
Abstract: 572,911. Electric radiators. HEATING CONSTRUCTION, Ltd., and DARBY, H. G. Nov. 18, 1944. No. 17213. [Class 39 (iii)] An electric radiator comprises a heating element 21 mounted in the focal line of a parabolic reflector 17 by brackets 22 which carry the terminal fittings. The reflector carries vertical fins 19 extending into a space bounded by a back plate 12, whereby air passing through the space is warmed. The refractory member 21 carrying the heating wire is provided with curved ends 24, 25 and is hollow, so that air circulates through it. In an alternative form, the inlet and outlet for the air project laterally . from the member 21 through the back of the reflector.