baber/WOPTO huggingface dataset:
Patent GB-223531-A (GB)
Title: Improvements in flashlight apparatus
IPC: G08B5/40
Filed: 1924-05-23
Abstract: 223,531. American Gasaccumulator Co., (Assignees of Meden, E. H., and Lindahl, C.). Oct. 17, 1923, [Convention date]. Valves actuated automatically and intermittently. - A valve device periodically opened and closed by the pressure of the controlled fluid acting on a diaphragm has an adjustable stop for limiting the opening movement of the pivoted valve member and is fitted with means for adjusting the stroke of the diaphragm. The valve member 6 is held against a pair of pivot points 7 by a single point 8 mounted in a springy bridge. 9 and carries a pivoted lever 13 the shorter end of which engages a bail 16 secured to the actuating diaphragm while the longer arm intermittently engages an adjustable stop 17. The seat 5 is screwed to the casing and secures one end of a plate 12 the other end of which is fixed by the pivot pins 7 and also secures a U-shaped member 11 which carries the adjustable stop 10. Either the valve member or the plate may be magnetised so that the valve opens and closes with a snap action. The diaphragm is loaded by a spring 18 and the inlet passage is provided with a throttling screw 20.
Patent GB-1466180-A (GB)
Title: Abrasive boron nitride particles containing phosphorus
IPC: B24D3/00
Filed: 1974-03-21
Abstract: 1466180 Abrasive boron nitride particles GENERAL ELECTRIC CO 21 March 1974 [20 April 1973] 12720/74 Heading C4V [Also in Division C1] Abrasive cubic boron nitride crystals have phosphorus in elemental or compound form dispersed therein (see Division C1) and may be used in abrasive wheels, e.g. in vitreous-bond, metal-bond or resin-bond grinding wheels. The particles may be nickel-coated.
Patent GB-714927-A (GB)
Title: Improvements relating to methods of producing rolled sections from metal powder
Inventor: NAESER HERMANN GERHARD
IPC: B22F3/18
Filed: 1951-05-31
Abstract: 714,927. Making composite wire, strip, &c. MANNESMANNROHREN-WERKE. May 31, 1951, No. 12950/51. Classes 83 (2) and 83 (4). [Also in Group V] Powder metallurgy.-In a method of producing rolled sections from metal powder, the powder is passed through substantially horizontal rolls such that the thickness of the rolled section is less than <SP>1</SP>/ 50 th of the diameter of either roll. As shown in Fig. 1, metal powder from a hopper 1 is fed to the pass between rolls 2 disposed with their axes in a plane slightly inclined to the horizontal. The rolled section 3 passes along a guide 4 to a sintering furnace 5 and thence to rolls 6. The sintering may be carried out in several stages with intermediate rolling steps, the sintering temperature being 850-920‹ C. for copper and about 1150‹ C. for iron. By partitioning the hopper as at 11, a composite section of two or more different metals can be formed. Alternatively strips &c. of different metals from independent rolling mills may be led together into the sintering furnace and be united by the subsequent rolling steps. One or more strands of a different material may be fed into the roll pass with the powder or powders. The pass may be formed by three rolls 2, 2<SP>1</SP>, 2<SP>11</SP>, Fig. 3a, the supply hopper 8 having bounding surfaces covered with felt or rubber and projecting into grooves 9 formed in the peripheries of the rolls. The method may be used for producing electric heating resistances of iron containing 30 per cent aluminium or corrosion-resistant articles of iron containing about 30 per cent silicon.
Patent GB-900400-A (GB)
Title: Method and apparatus for thermochemical scarfing
IPC: F23D14/54
Filed: 1960-04-12
Abstract: 900,400. Burners. UNION CARBIDE CORPORATION. April 12, 1960 [May 22, 1959], No. 12978/60. Class 75 (1). [Also in Group XXII] A flame desurfacing nozzle con sists of a body 10, having upper and  lower groups of passages 15 for fue gas, e.g., natural gas or acetylene and a central passage 14 having slot-shaped outlet 16 for oxyger and an enclosing cap 12 having a single slot-shaped aperture 24. Each group of fuel gas passages 15 opens into a separate diffusion zone 30 between the cap 12 and a stepped flat 34 on the body 10. An enlargement 20 at the end of the central passage assists aspiration of the deflected upper and lower fuel gas streams into the boundary layers of the stream of oxygen.
Patent GB-504419-A (GB)
Title: Method for the production of photo-mechanical printing blocks
IPC: B41C1/16
Filed: 1938-05-02
Abstract: 504,419. Photo mechanical printing- surfaces. RENCK, H. May 2, 1938, No. 13015. [Class 98 (ii)] [Also in Group XVI] In photo-mechanical printing-blocks which include picture and text matter, the areas of the surface having text matter are brought to a lower lever than the picture areas. For example, a support of iron is coated with brass and an overcoating of nickel is applied. The nickel coating is sensitized and the picture matter printed thereon photographically. The rest of the surface is denickelled electrolytically and the exposed brass surface is sensitized. The text matter is then printed thereon photographically and the brass removed from the remaining parts electrolytically. The, iron parts exposed thereby are ink-receptive. If desired, nickel or chromium may be deposited on the areas bearing text matter.
Patent GB-1526891-A (GB)
Title: Stroboscopic tuning device for musical instruments
IPC: G10G7/02
Filed: 1977-03-29
Abstract: 1526891 Tuning devices T CAMERON and D L CAMERON 29 March 1977 [6 May 1976] 13031/77 Heading G5J A stroboscopic light 55 (Fig. 2) adjacent a string B of a musical instrument is excited at a preselected frequency, the string appearing stationary when it is properly tuned. As described the housing 21 rests on strings not being tested, the string under test being positioned in a recess 29 between the light 55 and a viewing aperture. The base of a threaded box 48 engages the top of the string instrument. The light which may be a neon light, light emitter diode or a gas discharge lamp is driven via a divider circuit and a driver circuit from a piezo-electric tuning fork oscillator.
Patent GB-1211065-A (GB)
Title: Plate heat exchanger
IPC: F28D9/00
Filed: 1969-03-12
Abstract: 1,211,065. Plate-type heat exchangers. ALFALAVAL A.B. 12 March, 1969 [12 March, 1968], No. 13076/69. Heading F4S. A heat exchanger comprises plates of at least two different types assembled in a frame which are spaced apart by edge sealing gaskets to form passages for the through flow of two heat exchanging media and the heat exchanging surfaces of the plates have turbulence producing ridges e.g. of chevron shape. The plates differ with respect to the ridges viz. their number, location, extent, height or orientation and the plates are designed to be assembled in a frame adjacent a plate of the same or different type with the ridges of adjacent plates crossing and abutting in the passage between plates. If plates of the same type are adjacent, one is turned 180 degrees in its own plane relative to the other.
Patent GB-330363-A (GB)
Title: Improvements in or relating to suspending-devices for electric conductors
IPC: H02G7/05
Filed: 1929-04-27
Abstract: 330,363. Hofmann, J. W. April 27, 1929. Holders for cables and conductors.-In a suspending-device for an electric conductor the clamping members are freely mounted so as to be able to follow the movements of the conductor due to vibrations and change of sag. In the construction shown in Fig. 1, the suspension of the conductor b is effected by clamping members a pivoted to carrying members c which are pivoted at e to the insulator chain. The pivot axles d of the clamping members are arranged to lie nearer the inner ends of the members, as shown in Fig. 5, and the carrying surface may be curved as at m so that no rubbing occurs between the conductor and the ends of the clamping members. In a modification, Fig, 2, the separate carrying members are replaced by a single carrying piece f. In order to allow the clamping members a to move longitudinally when the sag of the conductor alters, the pivots d are adapted to slide in elongated holes g, formed in the member f. A further modification consists in arranging the pivots d, e, d in one plane.
Patent GB-495060-A (GB)
Title: Improvements in or relating to electric remote indicating systems
IPC: B61L25/06
Filed: 1937-05-07
Abstract: 495,060. Electric signalling systems. STANDARD TELEPHONES & CABLES, Ltd., BROWN, A., and WOODWARD, E. E. M. May 7, 1937, No. 13104. [Class 40 (i)] A number of groups of signal stations (track signals) on a party line are separated by indicating stations (signal cabins) and apparatus is provided to enable indicating stations to be closed down, the signals being then received by the next preceding working indicating station. The system operates in a manner similar to that described in Specification 461,136. In the Figures, SCA represents the apparatus at the terminating indicating station, A the apparatus at a track station, EA the group terminating equipment, SCB an intermediate indicating station and EB the final terminating equipment. With the apparatus in the condition shown, all signals will be received at SCA. With the wiper W in position 1, relay SA is connected in series with battery MB over aca2, oa1 and RA to track contact t. If this contact is closed, relay SA energizes and locks. In position 2, wiper W connects battery AB to line so that relay P is energized and O operates. When the wiper W steps to position 3, relay P falls away and OA operates to switch the line to the next track station. When all stations in the first group have been supervized, wiper W connects relay SYA to line, but as contacts K3, K1 and K2 are closed, this relay does not operate. Stations in the next and subsequent groups are connected in turn to SCA so that relays SX, SY, &c. test for the condition of contacts t at the various stations. Finally, station EB is connected to relay SYB and relays P and SYB operate in series from battery SB. Contact syb1 enables relays in the groups DA, DB, DX, &c. to be operated by contacts of operated relays SA, SB, &c. cam contact CB opening to release the previously energized relays. Contact CB recloses to maintain the energized relays, contact CC opens to release the S relays and contacts CE and CD change over to connect batteries AB, MB in series across the lines. Relays ACA at all stations energize to release relays O and OA and restore the apparatus so that a further cycle of indications can commence. If indicating station SCB becomes occupied, contacts K1-K3 are changed over so that indications from the next track stations are received at station SCB. At station SCA, when wiper W connects relay SYA to line, the relay is operated from battery SB in series with the relay P at EA. Relay O pulls up and, when the wiper steps on, relay OA energizes to open the line circuit so that relays SX &c. are not operated. Contact sya1 enables the indications stored on relays SA-SC to be transferred to relays DA-DC as before and the substation apparatus is restored as previously described. The invention is intended for use on railways where SCB &c. are signal cabins attended for parts of the day only.
Patent GB-585626-A (GB)
Title: Improvements relating to the hydrolysis of organo-silicon halides
IPC: C08G77/00
Filed: 1943-08-12
Abstract: Liquid organo-silicon resins suitable for coating compositions and for impregnating glass fibres or asbestos sheet to form insulating materials are obtained by dissolving a mixture of silicon halides with or without silicon tetrahalides in an unsymmetrical ketone having one methyl group attached to the carbonyl group and adding the solution gradually to water to hydrolyse the halides and condense the hydrolysis products. Ketones specified are methyl ethyl ketone, methyl propyl ketone, methyl isopropyl ketone, methyl isobutyl ketone and methyl amyl ketone.  In examples: (1) a mixture comprising 45 per cent methyldichlorsilicane and 55 per cent methyltrichlorsilicane was dissolved in 20 gs. methyl propyl ketone and the solution added slowly to 100 gs. water.  Separation into layers followed and the upper layer containing the soluble liquid condensate was separated from the lower aqueous layer; (2) the solution hydrolysed comprised a mixture of methyldichlorsilicane, methyltrichlorsilicane and silicontrachloride dissolved in methyl isobutyl ketone.
Patent GB-131873-A (GB)
IPC: H01H71/24
Abstract: 131,873. Soc. Anon. des Etablissements L. BlÚriot. Aug. 26, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Electro-magnetic switches.-A resistance j is placed in shunt to the windings e of an electromagnetic relay, when the armature is attracted, to protect the windings from excessive current. The resistance is designed to compensate for variation in reluctance due to the movement of the armature in order to allow the armature to move away readily, when the current falls to a determined value. As used in an electric installation supplied from a dynamo a, with which may be associated a battery b, the winding of the relay is in the same circuit as one or more devices c such as motors, heaters, control apparatus, or lamps. On closure of the circuit through these devices the armature is attracted and the shunt resistance circuit completed at the contacts f<2>, i. The armature carries.a second contact f<1>, which, when the armature is released due to open-circuiting of the device c, closes a supply circuit through service devices d. Spark contacts k may be used.
Patent GB-810904-A (GB)
Title: Improvements in treatment of petroleum wax
Inventor: FISH JOHN JOACHIM
IPC: C10G73/38
Filed: 1957-04-25
Abstract: A modified wax is prepared by treating a petroleum wax with not less than 2 per cent by weight of potassium hydroxide at 250-270 DEG  C. for 10-30 hours, and then with an oxygen-containing gas, e.g. air, at 145-170 DEG  C. for not less than 6 hours.  From 2-3 per cent of potassium hydroxide may be used, and the treatment may be carried out in an atmosphere of inert gas, e.g. nitrogen or carbon dioxide.  The treatment with oxygen-containing gas may be effected for 1-4 hours at 160-170 DEG  C. and therefore 2-25 hours at 145-160 DEG  C., the total time of treatment being at least 6 hours. Examples are given of the treatment of paraffin wax of M.P. 133-135 DEG  F. and of microcrystalline waxes of M.P. 190 DEG  and 195 DEG  F.  The modified wax may be treated with sulphur, for example, by heating 5 parts by weight of sulphur with 95 parts of the wax at 120-130 DEG  C.  The reaction may be accelerated by adding 1 per cent of stearic acid. The modified wax can be used to make a self-polishing floor wax emulsion, comprising 57 parts of the modified wax, 48 parts oxidized wax or carnauba wax, 5 parts oleic acid, 4 parts triethanolamine, 3 parts 2-amino-2-methyl-1-propanol, 3 parts borax and water to make a total 1,000 parts.  Such wax emulsion is made by first melting together the modified petroleum wax, the carnauba wax and the oleic acid, cooling to 210 DEG  F. and adding the triethanolamine and the 2-amino-2-methyl-1-propanol and stirring for 10 minutes at that temperature, the borax dissolved in 30 parts water is then added and the whole stirred for 15 minutes still at 210 DEG  F., the hot mixture is then poured into water at 210 DEG  F. and the whole agitated to form an emulsion.  The emulsion is cooled and adjusted to a pH of 8.5-9 with ammonia water.
Patent GB-1065413-A (GB)
Title: Improvements in and relating to force transmitting members
IPC: F16C7/00
Filed: 1964-03-31
Abstract: 1,065,413. Helicopter rotors. BENDIX CORPORATION. March 31, 1964, No. 13228/64. Addition to 1,045,723. Heading B7W. [Also in Division F2] A tie-bar for joining a helicopter rotor blade and rotor hub, comprises layers of tape 24, formed by spaced - apart parallel filaments bonded together by and encased in an elastomeric substance, encircling a pair of bushes 32, each adapted to be located symmetrically about the common flexural axis of the rotor blade, the tape layers being separated by shims 26 (40) of a fluorocarbon substance interleaved therebetween such that all layers of tape have substantially the same length and thus all bear substantially equal tensile loads. The shims 26 may be tapered towards the end bushes and may be formed as a single continuous strip with shims (40, Fig. 2, not shown) between the layers at the bushes. The bushes 32 may have flange extensions 30 protecting the edges of the tape layers.
Patent GB-1431902-A (GB)
Title: Optical method and apparatus for exampining surfaces
IPC: G01B11/30
Filed: 1972-03-22
Abstract: 1431902 Inspecting surfaces for faults ROLLS-ROYCE (1971) Ltd 22 March 1973 [22 March 1972] 13292/72 Heading G1A In a device for inspecting the surface of a specimen 1 for faults, the specimen 1 has a laser beam 11 directed at it and is mounted on a supporting structure 2, which is the centre about which a detector 4 may be rotated on an arm 6 the angular position of which is indicated by a transducer, alternatively, a plurality of detectors may be symmetrically disposed on either side of the laser beam Fig. 2b (not shown) or a photographic film Fig. 2a (not shown) may be placed along a semi-circle centred on the specimen and the intensity of the developed film inspected photoelectrically. The presence of faults &c. on the specimen's surface can be detected by investigating the magnitudes and positions of the peaks in the angular intensity distribution curve and comparing the distribution curves with the curves produced from standard specimens. The laser beam may be periodically interrupted in order to make use of A.C. amplification techniques and reduce the effect of background radiation, or, in order to determine the spatial frequency distributions in both vertical and horizontal directions on a specimen surface, either the specimen may be rotated in a vertical plane about the axis of the illuminating beam 11, or two detectors at right angles to one another may be used in place of detector 4. A further detector may also be used to monitor the intensity of the illuminating beam by means of a mirror system and used to obtain a ratio with the scattered light intensity at any angle to the surface.
Patent GB-539915-A (GB)
Title: Improvements in or relating to concrete mixers or the like
IPC: B28C7/08
Filed: 1940-08-21
Abstract: 539,915. Concrete &c. mixers. BLAW KNOX, Ltd., and WILSON, S. Aug. 21, 1940, No. 13295. Drawings to Specification. [Class 86] [Also in Groups XVIII and XXX] In a combined concrete mixer and weigher or the like wherein the skip is drawn up an inclined track from the filling position to the mixer, the track is hinged to enable the lower part to be moved inwardly to facilitate transport.
Patent GB-457438-A (GB)
Title: Improvements in casting moulds for the production of compound metal castings
IPC: B22D19/00
Filed: 1936-05-11
Abstract: 457,438. Casting composite articles. MONZER, A., 45, Berliner Strasse, Pankow, Berlin. May 11, 1936, No. 13307. Convention date, Aug. 26, 1935. [Class 83 (i)] Moulds; casting processes.-In making compound castings for bearing bushes, piston rings, gear wheels, &c., antifriction alloy is cast upwardly on a supporting member 7 arranged in a sand mould, the cavity 3 of which tapers to a smaller cross-section at the top where it is connected to a riser 4. A curved extension 7 to receive the metal first poured and a channel 8 for the supply of inert gas, such as carbon monoxide are provided. In the mould shown the tapering cavity 3 is provided by using a conical core 2.
Patent GB-1061181-A (GB)
Title: Improvements relating to electrical connectors
Inventor: BIKKER ANTHONY
IPC: H01R4/30
Filed: 1963-04-04
Abstract: 1,061,181. Wire couplings. A. BIKKER. March 20, 1964 [April 4, 1963], No. 13388/63. Heading H2E. An electrical connector comprises a metallic channel shaped body 10, a closure member 20 held above the base of the body, a flexible metallic strip 16 extending across the whole width of the channel and screws 22 received in apertures 21 in the closure member and arranged to engage the flexible strip in such a manner that electrical conductors can be clamped between the strip and base of the channel by tightening the screws. The stranded cables to be connected are laid in the base of the body 10, which may be made from nickel plated brass, and the W-shaped flexible strip 16 constructed from phosphor bronze is placed over them with lugs 19 fitting into recesses 15 of the body. The cables are secured by inserting projections 23 of the closure member 20, made of spring steel, into slots 14 and recesses 15 and threading screws into the apertures 21 via apertures 25 of an insulating block 24 enclosing the connector, so sandwiching the cables between the troughs 17 and the base 11.
Patent GB-793706-A (GB)
Title: Improvements relating to butterfly valves
Inventor: JACKSON REGINALD FRANK
IPC: F16K1/22
Filed: 1955-05-10
Abstract: 793,706. Dampers. SMELLIE, Ltd., J. May 7, 1956 [May 10, 1955], No. 13428/55. Class 126 [Also in Group XXIX] A butterfly valve in the air inlet pipe of an "under floor" draught type of domestic fire is provided with a stop 8 comprising an arcuate arm 8a of square section presenting end faces 8e, 8d adapted to be engaged alternately by the valve disc or plate 5 in the fully open and fully closed positions. The stop has a boss 8b with a tapped hole 8c and can be secured to a pipe section 4 by a screw 9. The valve plate 5 is mounted on a spindle 6 operable by a control knob 7.