baber/WOPTO huggingface dataset:
Patent GB-467980-A (GB)
Title: Improvements in and relating to aircraft having freely rotative wings
IPC: B64C27/02
Filed: 1935-12-23
Abstract: 467,980. Aircraft with rotary-wing systems. JOSSELYN, J., and BLAKE, R., [Representatives of LA CIERVA, J. DE]. Dec. 23, 1935, No. 35539. [Class 4] An aircraft having a normally auto-rotative sustaining rotor, and rotor-starting mechanism including a clutch, includes mechanism for regulating the clutch and for regulating simultaneously and equally the pitch of all the rotor blades and is provided with manual control means operative on each mechanism and permitting full operation of either without changing the position of the other and so arranged as to permit conjoint operation of both mechanisms, at least for disengaging the clutch and increasing the blade pitch angle from its minimum at least to its normal value in flight, by one simple manual movement of the pilot, and wherein the position of the flying control does not determine the actual positions of the clutch and pitch control mechanisms, but may optionally affect the relative mobility of these mechanisms. In one form, the rotor blades 22 are mounted on pins 19 pivoted about inclined axes a, a in members 16 pivoted' on a pin 14 which makes an angle other than a right-angle with the radial axes of the blades. Adjustment of blade incidence on the pins 19 is controlled by the action of centrifugal force on weights 28 on arms 27 through a worm 24 carried by the blades and a worm wheel 23 carried on the pins 19. In order to obtain equal and concurrent adjustment of blade incidence the arms 27 are connected by tension members 30 which pass through sheaths 31 to a member 34 mounted through an'anti-friction bearing 35 on a rod 36 adjustable vertically by screw-and-nut mechanism. The nut 38 is held from axial displacement and is rotated from a lever 45 through a tension element 43 passing through a sheath 44, and a lever 40 against the action of a spring 42. The rotor is driven through bevel gearing and a clutch ; the latter is operated through a tension element 53 passing through a sheath 54 from a lever 55 situated adjacent the lever 45 so as to permit by a single action separate or concurrent actuation of the levers. In a modification, the pins 19 are omitted and the worm gear is carried by the member 16. In order to permit freedom about the axis a, a the worm is cut so that only over a portion of its. movement it engages the worm wheel. In this form the clutch is closed against the action of a spring and is held closed by a spring-pressed pawl which is released by a connection with the pitch-control levers so that the clutch opens before the pitch of the blades is increased. In further modifications, the clutch and pitchcontrol levers are adapted to be locked together by the flying-control for the rotor when it is in its extreme forward position or by the throttlecontrol lever which may maintain the controls locked together until a predetermined throttle opening is obtained. Specifications 410,532 and 420,322 are referred to.
Patent GB-411873-A (GB)
Title: Improvements in typographical line casting machines
IPC: B41B11/72
Filed: 1932-12-15
Abstract: 411,873. Type-bar-maldng machines. HART, H., 9, Kingsway, London.-(Mergenthaler Linotype Co. ; 29, Ryerson Street, Brooklyn, New York, U.S.A.) Dec. 15, 1932, No. 35561. [Class 100 (iii).] Cutting and trimming apparatus; moulds.- In a type-bar-making machine a powerdriven rotary cutter is provided for automatically trimming the printing-faces of the slugs as these are carried by rotation of the mould wheel from casting to ejecting position. As shown in Fig. 3, the rotary cutter B<11> is rotatably supported by a spindle B<7>, mounted on ball-bearings in a casing B<4> which is adjustably attached to a bracket B<1> arranged directly opposite the rear trimming-knife, both the bracket B<1> and the rear trimming-knife being located on an extension of the mould slide. The spindle B<7> of the cutter is fixed within a sleeve B<6> which may be rotated by an external operating-handle D<9>, Fig. 8, to advance the cutter into its operative position, with the inclined edges of the knives B<30> parallel to and cutting crosswise of the slugs at the point X, Fig. 3, this longitudinal movement being produced by means of a screw B<26> in the wall of the casing B4 which engages a spiral groove in the sleeve B<6>. A micrometer screw B<63> permits fine adjustment of the position of the operating-handle to be made, and a lock nut D<12> serves to hold it in adjusted position. The position of the cutter can also be adjusted to compensate for wearing of the blades. The spindle B' is driven through a belt D from an electric motor, the starting switch D<5> of which may be closed when the operating-handle is moved to advance the cutter into operative position, the switch being opened on the reverse movement. The casing B<4> of the cutter is so mounted on its support B<1> that the entire unit can be rocked vertically or horizontally to align the cutter with the face of the mould. The depth of the mould is such as to cast slugs of slightly more than the required height so that when the printing-faces are trimmed down the finished slug is of the required height. To support and guide the mould wheel A in its rotation, the bracket B<1> is provided with a front guide shoe F and a rear guide shoe F<1>, the former being integral with the bracket B<1> and the latter, which is T-shaped, being clamped by a screw f passing through a slot f and adjusted by a pair of set-screws f<2>, f<3>. The casing B<4> is provided at its rear end with a projecting hood B<51> which surrounds the cutter and is formed with a trough B<50> leading from the cutter B<11> to a delivery chute B<52> for the metal shavings. In addition, a brush B<54> with yieldable bristles cut to coincide with the shape of the front face of the mould is secured to the top of the guard B<50> and serves to prevent the escape of shavings and to clean the mould face.
Patent GB-1409966-A (GB)
Title: Roller conveyor
IPC: B65G47/26
Filed: 1973-07-26
Abstract: 1409966 Roller conveyers R GEBHARDT 26 July 1973 [16 Feb 1973] 35570/73 Heading B8A In a roller conveyer, pairs of roller units are controlled by an article sensor 12 connected to the units by a link 10. Each unit consists of a carrying roller 2 on whose axle 6 is freely pivoted a support 7 carrying a belt pressure roller 9 and an intermediate roller 4. There is a large clearance between an axle 5 and a bore 14 of the roller 4. In Fig. 1, when an article 11 engages the sensor 12 to the left of the figure, the two roller units to the right of the figure are caused to swing anticlockwise, the axle 5, by engaging the walls of the roller bores 14, causing the two rollers 4 to move out of driving engagement with the belt 3 and the rollers 2. When the sensor 12 is not actuated the roller units are free to swing clockwise, Fig. 3, and the rollers 2 are again driven. In a modification, Fig. 4, a roller unit support 15 is pivotally mounted on an axle 16, has a counterweight 17 and has a spring 20 to aid movement of the roller 4 towards the driving position.
Patent GB-1498989-A (GB)
Title: Method and apparatus for determining the ozone content of ozone-containing gas mixtures
IPC: G01N25/32
Filed: 1975-08-29
Abstract: 1498989 Determination of ozone MESSER GRIESHEIM GmbH 29 Aug 1975 [31 Aug 1974] 35744/75 Heading G1B The ozone content of ozone-containing gas mixtures is determined by a method comprising converting the ozone into oxygen, with generation of heat, using a thermally insulated catalyst bed consisting essentially of a mixture of copper oxide and manganese oxide, and measuring the rise in temperature in the catalyst bed. The apparatus may comprise tube 1 having an inlet connection and an outlet connection for gas mixture, a hopcalite catalyst 7 disposed between the openings and thermally insulated by its enclosure in tube 1 surrounded by evacuated mirror-surfaced vessel 6, a first thermocouple 10 in the region of the inlet connection and a second thermocouple 11 in the region of the catalyst, preferably within the catalyst at the point of highest temperature rise. The hopcalite catalyst comprises a mixture of copper oxide and manganese dioxide as hard porous grains of 2 to 3 mm in size.
Patent GB-1064714-A (GB)
Title: Method, means and apparatus for preventing mis-connection of electrical connector arrangements
IPC: H01R13/595
Filed: 1963-09-11
Abstract: 1,064,714. Tube expanders. M. R. JUST, L. C. STONEBERG, and R. WINTERS, [trading as MALCO MANUFACTURING CO.]. Sept. 11, 1963 [Sept. 27, 1962], No. 35821/63. Heading B3J. [Also in Division H2] A pair of washers 139, Fig. 8 (not shown), each having an inwardly projecting tang 150, are permanently secured, in selected angular positions, in respective bores 137 in the body of an electrical connector (see Division H2) to ensure that the connector can only be mated with the correct co-operating connector. The washers are placed on angularly set posts 186 with their tongs 150 resting in grooves 222 in the posts and the connector is mounted in a ram, Fig. 6 (not shown), and forced down over the posts. The posts have shoulders 228 so that when the washers abut shoulders 137a in the bores, the washers are expanded radially and peripheral lugs 152 of the washers are embedded in the walls of the bores. In a modification, Fig. 11 (not shown), each washer is placed on a collet (286) which is expanded by a tapered pin (290).
Patent GB-1091325-A (GB)
Title: Water-setable polyester/filler compositions
Inventor: JONES STANLEY HAROLD
IPC: C08F283/01
Filed: 1965-08-20
Abstract: A water-settable composition comprises a polymerizable unsaturated polyester, a copolymerizable ethylenic monomer, an inorganic filler capable of being set with water (i.e. with water gives an alkaline reaction and sets to a solid mass), a water-soluble polymerization initiator which is insufficiently soluble in the polymerizable components to initiate polymerization in the absence of heat but which becomes active under aqueous alkaline conditions, and at least 0.05% by weight of the settable filler of a solid anhydrous polybasic aliphatic or alicyclic acid or anhydride having 2-14 C atoms. Suitable settable fillers are the hydraulic mortars, particularly the cements. In examples are used: polyester (from phthalic and maleic anhydrides, propylene and diethylene glycols), styrene, cement, hydroquinone, ammonium persulphate, and, as acids, maleic, fumaric, oxalic, succinic, azelaic and citraconic.ALSO:A water-settable composition comprises a polymerizable unsaturated polyester, a copolymerizable ethylenic monomer, an inorganic filler capable of being set with water (i.e. with water gives an alkaline reaction and sets to a solid mass), a water-soluble polymerization initiator which is insufficiently soluble in the polymerizable components to initiate polymerization in the absence of heat but which becomes active under aqueous alkaline conditions, and at least 0.05% by weight of the settable filler of a solid anhydrous polybasic aliphatic or alicyclic acid or anhydride having 2 to 14 carbon atoms.  Suitable settable fillers are cements (e.g. slag, portland, natural) and lime. In the examples a polyester derived from phthalic and maleic anhydrides and propylene and diethylene glycols, styrene, cement, hydroquinone, ammonium persulphate, and maleic, fumaric oxalic, succinic, azelaic and citraconic acids are used.
Patent GB-423694-A (GB)
Title: Improvements in and relating to shingles and the manufacture thereof
IPC: E04D1/28
Filed: 1933-12-21
Abstract: 423,694. Roof shingles. BAKELITE BUILDING PRODUCTS CO., Inc., 247, Park Avenue, New York, U.S.A. Dec. 21, 1933, No. 36028. Convention date, Feb. 4. [Class 87(i)] Roofing-shingles which are thin and pliable, are made by coating a plain or asphaltic felt 3 with a bituminous or resinous agglutinant 11, applying granular material 20, and then a thin layer of plain or coloured hydraulic cement before or after cutting the felt into shingles. The weather exposed portions only of the felt may be so treated. Apparatus for making the shingles is shown diagrammatically in Fig. 9, and comprises a vat 4 containing a low-melting asphalt, pull and squeeze rolls 6, cooling loops 8, a hopper 12 for applying a hot high-melting asphalt, levelling rolls 16, a hopper 22 for supplying the granular material, rolls 26, 30 for partially or wholly embedding the granular material in the layer 11, a cooling looper 34, a device 36 for applying a wash of cement, calender rolls 38, cutter rolls 40, and a conveyer belt 42. The device 36 may be shifted to position 44. In a modification, a water bath or spray replaces the looper 34. Depressed areas forming designs may be produced by passing the coated web through ornamental rollers such as the rolls 26 or 30, and part of the granular material may project through the cement. Both sides of the felt may be treated as above.
Patent GB-785373-A (GB)
Title: Process for the preparation of heterocyclic compounds
IPC: C07D279/06
Filed: 1954-12-14
Abstract: The invention comprises compounds of the formula <FORM:0785373/IV (a)/1> wherein R is a -(CH2)6- or <FORM:0785373/IV (a)/2> group and R2 is hydrogen, alkyl, aryl or aralkyl.  It comprises also a process for the preparation of compounds of the formula <FORM:0785373/IV (a)/3> wherein X is O, S, NH or NR3 (R3 is an alkyl, aryl or aralkyl group), by reacting a compound of the formula R1OC­C-R2, wherein R1 is an alkyl group, with a compound of the formula H2N-R-XH.  The reaction is suitably carried out by allowing an alkoxyacetylene, such as an ethoxyacetylene compound, to react with an aminoalcohol, a diamine or a mercaptoamine.  Examples describe the preparation according to the above process of (1) 2-methyl-oxazoline; (2) 2 : 4-dimethyl-oxazoline; (3) 2-methylimidazoline; (4) 2-methylbenzimidazole; (5) 2-methylthiazoline; (6) 2-methyl-1-dodecylimidazoline-2; (7) 2-propyl-imidazoline-2; (8) 2-benzylimidazoline-2; (9) 2-methyl- D 2-dihydro-oxazine - 1 : 3; (10) 2 - methyl - 3 : 4 : 5 : 6 - tetrahydropyrimidine; (11) 2-methyl-4 : 5-benzooxazine-1 : 3; (12) 2-methyl-5 : 6-dihydro-1 : 3-thiazine; (13) 2-(1-naphthylmethyl)-2-imidazoline; (14) 2-heptadecyl-2-imidazoline; (15) 2-methyl - 4 : 5 : 6 : 7 - tetrahydro - 1 : 3 - diazepine and (16) 2-methyl-4 : 5 : 6 : 7 : 8 : 9-hexahydro-1 : 3-oxazonine.
Patent GB-1442326-A (GB)
Title: Battery charging systems
IPC: H02P9/30
Filed: 1972-08-03
Abstract: 1442326 Automatic control of voltage LUCAS ELECTRICAL Ltd 12 July 1973 [3 Aug 1972] 36223/72 Heading G3R A battery charging system includes an alternator whose output voltage is regulated by a thyristor in series with the alternator field winding, with mechanical means i.e. slip rings interrupting the anode cathode path of the thyristor to turn it off. As shown, in use in a vehicle, thyristor 25 controls the current through field winding 22 using a known voltage regulator 31 to 37. Under normal conditions, current flows through thyristor & slip rings 23, 24 driven by the vehicle engine, the thyristor current being interrupted by a discontinuation in slip ring 24, at which time the field current is maintained by diode 26 until the connection across slip ring 24 is remade. If the voltage across battery 16 exceeds a predetermined value, no gate current flows to thyristor 25 so that when the thyristor current is interrupted by slip ring 24, the thyristor turns off and stays off until the battery voltage falls below the predetermined value.
Patent GB-1189827-A (GB)
Title: Improvements in or relating to Valve Mechanism for Fluid Pressure Pumps and Motors
Inventor: RIDLEY JOHN CECIL
IPC: F01B15/06
Filed: 1967-08-07
Abstract: 1,189,827. Reciprocating pumps and motors; compressors. J.C. RIDLEY. July 24, 1968 [Aug. 7, 1967], No.36233/67 Headings F1A and F1N. The fluid supply to and exhaust from each cylinder of an oscillating cylinder pump or motor is controlled by a piston valve 18, the body of which is fastened to the cylinder, and the valve member of which is anchored at a fixed point 27. In the embodiment of Fig. 1, the cylinders are doubleacting and oscillate about pivot points 12 as their pistons 13 reciprocate and crank-pin 16 rotates. Each valve 18 has a valve member 25, fixed to adjustable member 27 through a link 26, and having grooves 28, 29, 31 separated by lands 32, 33; ports 38, 39 in the body open respectively into the grooves 29, 28. Ports 35, 36 which are covered by the lands when the valve member is in the central position, lead to opposite sides of the piston 13 and alternately connect with the port 38 as the body reciprocates on the member 25 due to oscillation of the cylinder and valve body. One of external fluid connections 40, 41 leads to a fluidpressure supply and the other leads to a drain. From each connection, pipes 42, 43 lead respectively to ports 39, 38 of the respective valves, the pipe 42 including a flexible portion 42b. In the embodiments of Figs. 2-5 (not shown), the cylinders are single-acting and in Figs.2, 3 pressure and exhaust parts (62, 63) are alternately connected to a port (64) leading to one side of the piston as the valve member reciprocates. In the modification of Figs. 4,5, the land (68) is close to one end of the valve member so that it consequently need not project far beyond the pivot point of the cylinder.
Patent GB-1353432-A (GB)
Title: Apparatus for making up fabric pieces of a predetermined length
IPC: D05B37/00
Filed: 1972-08-03
Abstract: 1353432 Testing fabrics VIRGINIO RIMOLDI & C SpA 3 Aug 1972 [21 Sept 1971] 36247/72 Heading D1S [Also in Division G4] Apparatus for detecting faults in a strip of material comprises a knurled driven roller 22 mounted above an idler roller (not shown) and' which can move vertically at a fault in the material 38. Vertical movement swings the end 47 of arm 42 which is pivoted at 44 away from assembly 50 and permits light from a source therein to reach a photocell. The device may be used in apparatus for cutting fault free lengths of material for trouser loops.
Patent GB-342050-A (GB)
Title: Improvements in or relating to electrical apparatus responsive to the synchronisation of alternating voltages
IPC: G01R23/02
Filed: 1929-11-27
Abstract: 342,050. Synchronizing dynamoelectric machines. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, GARRARD, C. C., of General Electric Co., Witton, Birmingham, and WILLIS, F. B., of General Electric Co., Stoke, Coventry. Nov. 27, 1929, No. 36312. [Class 38 (iv).] Two light-sensitive means, such as photoelectric cells, are each subjected to the light variations produced in a neon tube, or other discharge tube, by one of the alternating voltages and are associated with a circuit or circuits effecting an indication or control when the alternating voltages are in synchronism. Each of two alternating current systems is provided with a device as shown in Fig. 1, comprising a tubular insulator 1 with a terminal 10 connected to a plate 8 and clips 6 in connection with one electrode of a neon tube 4 in the insulator. The terminal 10 may be connected to a main switch terminal on a 132,000 volt system, for example. To the opposite end of the insulator is affixed an opaque housing 15, with an aperture 29 and rubber ring against which a photo-electric cell is clamped by the cover 26 and a resilient pad 31. Insulators 18, 19 carry terminals whereby the cell may be connected in circuit, as shown in Fig. 2, with its fellow in the device connected to the other system. The neon in the tubes 4 is preferably at a pressure of 20 mm. and the photo-electric cells have red-sensitive cathodes of caesium on silver-oxide. The circuit includes protective resistances 35 and the alternating current produced in a resistance 36 connected to a point between the photo-electric cells 311, 312 and to an adjustable point on a potentiometer 34 becomes zero at synchronism. A thermionic amplifier may be connected across the terminals of the resistance 36 and its output used to give an indication, for example, in a telephone. A transformer in the output circuit may maintain energized, until the two voltages are in synchronism, a relay completing when de-energized the automatic synchronization of the two systems.
Patent GB-449167-A (GB)
Title: Improvements in or relating to the permanent waving of hair
IPC: A45D2/34
Filed: 1934-12-19
Abstract: 449,167. Hair - waving appliances. OSBORNE, GARRETT, & CO., Ltd., 51, Frith Street, WINSTANLEY, Ltd., and WINSTANLEY, G. E., 80, High Street, Wimbledon, both in London. Dec. 19, 1934, No. 36452. [Class 131] A tress of hair wound on a hollow curler is heated by a device comprising a portion adapted to fit inside the curler and a jacket fitting over the curl, the whole being slid into place longitudinally. The heater may be heated before being applied to the curl or may contain electric heating-elements. A winder for " root to point " curling consists of a sleeve 14 rotating on a hollow sleeve 13, a helical spring 18 serving as a ratchet. The fixed sleeve is mounted on a rubber-covered holder 19 and has a slot 16 to receive a string for securing the hair. The heater consists of a tube 7, Fig. 1, having a slot 8 to pass over the clip 21 which secures the curler to the holder 19, and an inner rod 12 to enter the sleeve 13. The tube 7 and rod 12 are both carried on a heatinsulating handle 9. A curler for " croquignole " waving is also described.
Patent GB-1007814-A (GB)
Title: Method and apparatus for truing a grinding wheel
IPC: B24B53/08
Filed: 1964-09-04
Abstract: 1,007,814. Grinding. CINCINNATI MILLING MACHINE CO. Sept. 4, 1964 [Jan. 22, 1964], No. 36459/64. Heading B3D. A method of trueing a grinding wheel 12 with a trueing roller 35 comprises aligning the roller transverse to the grinding wheel for contact for point contact of the periphery of the roller with the grinding wheel in an initial trueing cut, the point of contact being in a plane perpendicular to the axis of the roller, advancing the roller in discrete movements for each successive trueing cut, and repositioning the roller relative to the grinding wheel when the roller is advanced to change the point of contact on the periphery of the roller to lie in successive planes parallel to the first plane. The grinding wheel may be mounted on the slide 13 of a plunge-cut centre-type machine for grinding workpieces 8 held between a headstock 14 and a tailstock. A support 17 is secured to the slide 13 and has ways 16 along which a feed member 15 is movable by a screw 19 driven by a step motor 18. A cross slide 20 is movable along ways 21 in the feed member 15 transverse to the ways 16 by a piston-andcylinder device. A bar 27 is slidably mounted in the cross slide 20 and at one end carries a follower 29 which is urged by a spring 27a into contact with a cam 28 corresponding to the profile to be formed on the grinding wheel and mounted on an upper plate 15a of the feed member 15, and, at the other end rotatably supports the trueing roller 35 which is driven by a motor 36. The trueing roller is disposed with its axis A perpendicular to a radial plane L and with its lower edge or plane in the plane L for an initial trueing operation on the grinding wheel, its radius then being R1, the piston-andcylinder device holding the trueing roller to one side of the wheel. The ways 16 are at an inclination 2 to the radial plane and when the next trueing operation is to be effected, the step motor 18 is operated to advance the roller an increment of feed, the movement also moving the roller axially to align another point or plane of the roller in the radial plane L, and the roller is then traversed across the work. The thickness of the roller is such that when the grinding wheel is reduced to its minimum radius R2, the upper edge or plane of the roller is in the radial plane L.