baber/WOPTO huggingface dataset:
Patent GB-626600-A (GB)
Title: Improvements in or relating to lift spoilers for aircraft
IPC: B64C23/02
Filed: 1947-08-26
Abstract: 626,600. Controlling aircraft. FAIREY AVIATION CO., Ltd., and COLLIVER, H. E. S. Aug. 26, 1947, No. 23565. [Class 4] A spoiler comprises a number of discs 11 disposed spanwise along the top of a wing, the discs being pivotally mounted on their transverse diameters and interconnected for simultaneous operation. Each of the discs is mounted on a spindle 15 passing through a hemispherical bowl-shaped member 12 let into the surface of the wing, and is operated by links 16, 17 connected to a bell-crank 18, the latter being actuated by a control member 22 through a rod 21, bell-crank 20 and rod 19. Mechanical, electrical, pneumatic or hydraulic control may be employed.
Patent GB-171461-A (GB)
Title: Improvements in gear testing machines
IPC: G01B5/20
Filed: 1920-08-12
Abstract: 171,461. Kavle, O. C. Aug. 12, 1920. Surface and outline gauges.-In a device for testing the form of gear teeth for inaccuracies, the gear-wheel a is mounted coaxially with a disc 3 of substantially the same radius as the base circle of the gear teeth, and a rocking member 12 with a straight edge 22 has rolling contact with the periphery of the member 3 so that a contact finger 25 moves over the outline of a gear tooth as the member 12, is rocked, any departure from the involute form in the shape of the tooth causing the finger to move about its axis and operate a dial indicator 29. A thin steel tape 7 is secured at 9 to the supporting plate 2, the other end of the tape being fastened to the member 12, which has bearing pins 21 resting on the plate 2 and of such a height that the tape laps the disc 3 and forms a tangent to this member by contact with part of the straight edge 22, as shown. A spring 15 is set to maintain the parts in this position at the beginning of the test. The point of the contact arm 25 then engages the apex of a recess between the teeth. By now rocking the member 12 so that it moves round the periphery of the disc 3 with a rolling motion similar to that of a companion gear, the tangent point in the straight edge 22 constituted by the contact end of the finger 25 describes an involute curve, and any departure from this form results in a pivotal movement of the finger 25 to maintain contact with the edge of the tooth under test. This pivotal movement is communicated through an arm 23, which is in contact with the plunger 30 actuating a pointer 29 of an indicating-dial 28. To test the accuracy of the spacing of the gear teeth, a detent 31 clamped to the plate 2 at 34 is arranged to make contact with the peripheral edge of the teeth, the detent being set to correspond accurately to the spacing of a predetermined number of teeth for a given pitch. The detent device allows the wheel to be turned in one direction so that the spacing of different sets of teeth on the wheel can be tested.
Patent GB-150264-A (GB)
Title: Improvements relating to the utilisation of tidal power
IPC: F03B13/26
Filed: 1920-08-12
Abstract: 150,264. Maynard, E. P. Feb. 19, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Tidal energy, utilizing.-In means for utilizing tidal energy, a turbine a is supplied from a pit o communicating with a basin k connected to the sea, or from a pit p connected to a reservoir l, and discharges to the sea or a race q through similar pits and basins, means being provided in some instances to maintain a constant head. When an excess of power is available, the turbine may drive a pump b to raise water to storage reservoirs. Several arrangements of reservoirs and cycles of working are described.
Patent GB-1391390-A (GB)
Title: Production of soda ash
IPC: C01D7/40
Filed: 1973-05-18
Abstract: 1391390 Production of soda ash FMC CORP 18 May 1973 [22 May 1972] 23753/73 Heading C1A The production of soda ash is carried out by calcining oxide tiana (Na sesquicarbonate), containing organic impurities, at a temperature high enough to convert the tiana to crude soda ash but too low to burn off the organics, dissolving the crude soda ash in water and crystallizing Na 2 CO 3 . H 2 O from the solution containing organic impurities and the cystallization controlled by adding from 3À8-400 parts/million of a solution of a surfactant in mineral oil the surfactant being soluble in the mineral oil and insoluble in the Na 2 CO 2  solution being crystallized. The surfactant reduces the surface tension between the mineral oil and the NaCO 3  solution and is present in a weight ratio to the mineral oil of from 1 : 1 to 1 : 20. Prepared surfactants are diesters of a polyethylene or polypropylene glycol in which the hydroxyls are esterified with a long chain fatty acid containing at least 12 carbon atoms. In an example a calcining temperature of 175 C. was used and the product dissolved in water to give a 30% solution of Na 2 CO 3 , containing, after removal of insolubles, 80 p.p.m. of carbon. Crystallisation of this solution was carried out at 104À8 C. in the presence of 13 p.p.m. of additive in the form of a 50-50 wt. per cent diesel oil-polyethylene glycol dioleate (M.W. of polyethylene glycol = 1500) mixture. Substantially uniform sized isometric crystals are produced.
Patent GB-751322-A (GB)
Title: Electric waveguide construction
Inventor: KARBOWIAK ANTONI EMIL
IPC: H01Q13/28
Filed: 1954-08-17
Abstract: 751,322. Waveguides. STANDARD TELEPHONES & CABLES, Ltd. Aug. 17, 1954, No. 23888/54. Drawings to Specification. Class 40 (8). In order to prevent degeneracy between the H 01  and E 11  modes in a circular-section waveguide intended for transmission of the H 01  mode the reactive component of the surface impedance is increased without materially increasing the resistive component. According to the Specification it can be shown (see Proc. I.E.E.. Vol. 101, part III, No. 72, July 1954, p. 238) that a surface loading consisting of a thin skin of any low-loss dielectric possesses the property Xd>>Rd where the surface impedance Zd=Rd+Xd. In the example given the loading for a copper guide of 7 cm. diameter operating at 34,500 Mc/s. consists of a layer of polythene of thickness equal to 25 microns. If the guide is made of aluminium the loading may consist of a layer of alumina formed by an anodizing process. Advantage may be taken of the resultant decrease in attenuation by decreasing the maximum permissible radius of curvature of the bends in the run of the guide.
Patent GB-1387602-A (GB)
Title: Dental cream
IPC: A61K8/04
Filed: 1972-05-22
Abstract: 1387602 Toothpastes COLGATE - PALMOLIVE CO 22 May 1972 [25 May 1971] 23892/72 Heading ASB A toothpaste comprises a toothpaste base having dispersed therein visible particles of a water-insoluble polymeric thermoplastic material substantially insoluble in the toothpaste base. A conventional antibacterial agent may also be present and a number of such agents are specified.
Patent GB-477929-A (GB)
Title: High speed rotating screw propellers for aircraft
IPC: B64C11/16
Filed: 1936-09-01
Abstract: 477,929. Screw propellers. KABUSHIKI KAISHA JETTOPLANE KOKUKI KENKYUSHO. Sept. 1, 1936, No. 23902. Convention date, Sept. 17, 1935. [Class 114] A screw propeller with aerofoil sectioned blades has concave leading and training edges 6, 7 which are disposed so that both the root and the tip widths are larger than the width at the middle of the blade.
Patent GB-1375357-A (GB)
IPC: C07J5/00
Filed: 1973-05-21
Abstract: 1375357 Corticoid 21-sulphobenzoate ROUSSEL UCLAF 21 May 1973 [19 May 1972] 24013/73 Heading C2U The invention comprises 6α-methylprednisolone 21-(m-sulphobenzoate) and its alkali metal salts. The salts are prepared from the corresponding 21-methanesulphonate by reaction with a di-(alkali metal) m-sulphobenzoate in the presence of an N-alkyl-amide (e.g. DMF), and may be converted to the free acid by passing over an acidic ion-exchange resin. The free acid may thereafter be resalified. 6α-Methylprednisolone 21-methanesulphonate is prepared from the free 21-ol by reaction with mesyl chloride. Antiinflammatory compositions for oral, parenteral, topical and rectal administration comprise a compound of the invention and a carrier.
Patent GB-480963-A (GB)
Title: Improvements in speed-reduction gearing
IPC: F16H1/32
Filed: 1936-09-02
Abstract: 480,963. Epicyclic toothed gearing. ELSWORTH, O. Sept. 2, 1936, No. 24046. [Class 80 (i)] Relates to speed-reduction gearing of the type in which a gyrating eccentric pinion d is prevented from rotating and drives an internally-toothed wheel p. According to the invention, the teeth of the wheel are wedgeshaped, and rotation of the driving pinion is prevented by a rectangular frame h, which is slidable in fixed guides j, the pinion being provided with flat surfaces f, by which it can slide in the frame h.
Patent GB-632266-A (GB)
Title: Improvements in or relating to drafting apparatus for textile spinning and like machines
IPC: D01H5/72
Filed: 1947-09-02
Abstract: 632,266. Sliver guides. HOWARD & BULLOUGH, Ltd., and HUNTER, W. A. Sept. 2, 1947, No. 24208. [Class 120 (i)] A sliver guide of the type comprising a trumpetshaped body pierced by an orifice of constricted cross-sectional shape has, adjacent the exit of said orifice, a pair of spaced surfaces between which the sliver is guided. As shown, the guide member 12 having an apertured lug 14 and a central orifice 15 which is so constricted that its throat 20 is of oblong cross sectional shape with inwardly extending swells 16, is provided with flanking portions or cheeks 17, 17, which are spaced apart at a distance equal to the width of the throat 20 and are tapered in the direction of the nip of the feed rollers 1 and 2 as indicated at 18, 18. Specification 401,935 is referred to.
Patent GB-462177-A (GB)
Title: Improvements in and relating to protecting devices for window and door openings
IPC: H01T13/36
Filed: 1935-08-30
Abstract: 462,177. Cellar covers and gratings. MANNESMANNROHREN - WERKE, and DIETEL, R. Aug. 30, 1935, No. 24305. Convention date, Aug. 30, 1934. [Classes 20 (i) and 107] The light shaft 3, Fig. 1, of a house cellar is covered by a grating 8, and by a dipping-bell 6 which dips into a sealing liquid contained in a peripheral groove 4 in the surrounding masonry, the combined arrangement forming a closure which is splinter-proof and secure against the ingress of poisonous gases. The dipping-bell is intended for use only in the case of an aerial attack, and the grating is therefore provided with a plate 12 which normally covers the groove 4. In a modification, Fig. 5, the plate is formed as a separate unit and has a peripheral lip 19 which engages in a groove 20 in the dipping-bell. The latter is formed with reinforcing ribs and is provided with handles for lifting purposes. The liquid seal may be effected by two or more grooves and by a corresponding number of rims on the dipping-bell. The Specification as open to inspection under Sect. 91 describes also a modification in which the groove is formed in a metal frame anchored to the surrounding masonry. In another arrangement, the seal is effected by a plate which is raised and lowered by chain tackle and which is used alone in place of a door which is normally used to cover the cellar opening. This subject-matter does not appear in the Specification as accepted.
Patent GB-462010-A (GB)
Title: Improvements in or relating to fluid mixing systems
IPC: C02F1/68
Filed: 1935-08-31
Abstract: 462,010. Mixing fluids in flow. LEA RECORDER CO., Ltd., and HORNER, J. W. Aug. 31, 1935, No. 24344. [Class 86] [Also in Group XXXVIII] Apparatus for adding a proportionate amount of reagent to a fluid in flow, more particularly for treating the water of swimming baths, comprises electrically - operated relay means for opening valves supplying water to constant level dissolving tanks the overflows from which mix with a current byepassed from the main stream. The main stream is forced by a pump 1 through a pipe 3 in which is a metering orifice 6, the pressures from which operate a mercury switch 7. The latter controls the current supplied to a relay 11, 13 through an ammeter 9, watt meter 10, and differential switch 12, the relay operating, through solenoids 40, 41, valves 36, 37, which control the supply of water from a tank 31 to dissolving tanks 22, 23. The overflows from these tanks fall into a funnel mounted in the perforated end of a pipe 18 connected with the intake of the pump and supplied with water from a constant level tank 15 replenished by a pipe 16 from the main 5.
Patent GB-772484-A (GB)
Title: Process for the preparation of trifluoropropenes
IPC: C07C17/00
Filed: 1953-09-03
Abstract: 3,3,3-Trifluoropropenes of formula CF3CX=CH2 where X is hydrogen, chlorine or bromine, are prepared by fluorinating, under anhydrous conditions and in the absence of acid or Friedel-Crafts catalyst, a halogenopropene of formula CMZ2CX=CH2 where M is chlorine or bromine and Z is fluorine, chlorine or bromine.  The fluorination may be carried out by reaction with antimony trifluoride, antimony trifluorodichloride, or antimony trifluorodibromide, at a temperature below 100 DEG  C.  In examples, 3,3,3-trifluoropropene is prepared from 3,3,3-trichloropropene and from 3-chloro-3,3-difluoropropene; 2-chloro-3,3,3-trifluoropropene is prepared from 2,3,3,3-tetrachloropropene and from 2,3-dichloro - 3,3 - difluoropropene; 2 - bromo - 3,3,3-trifluoropropene is prepared from 2-bromo-3,3,3 - trichloropropene, from 2,3 - dibromo-3,3 - dichlorpropene, and from 2 - bromo - 3-chloro-3,3-difluoropropene. The preparation of the 3,3,3-trichloropropene by dehydrochlorination of 1,1,1,3-tetrachloropropane is also described.  The Provisional Specification also describes the preparation of 2-bromo-3,3,3-trichloropropene, 2,3 - dibromo - 3,3 - dichloropropene, 3 - chloro - 3,3 - difluoropropene, 2 - bromo - 3-chloro - 3,3 - difluoropropene, and 2,3 - dichloro - 3,3 - difluoropropene, starting materials used above, by dehydrochlorination reactions.
Patent GB-486637-A (GB)
Title: Improvements relating to upper roughing machines
IPC: A43D37/00
Filed: 1937-09-07
Abstract: 486,637. Roughing shoe uppers. COMPO SHOE MACHINERY CORPORATION. Sept. 7, 1937, No. 24386. Convention date, Sept. 12, 1936. [Class 17 (i)] A work rest or gauge for an upper roughing machine is pivoted remote from the axis of the roughing tool and provided with a screw-threaded adjustment for moving the rest towards the axis of the tool. A driven wire brush 17 rotates in a casing open at its forward side, the opening being partially closed by a member pivoted at 25, having side walls and a bottom 28 forming a dustcollecting scoop, front walls 26 curved substantially to the radius of the tool and slotted to allow this to protrude slightly, and a fork supporting a pivot 32 for a screwthreaded rod 31 engaging a threaded adjusting thimble. The thimble comprises an adjusting head 31 and a ball portion 39 housed within a cylindrical guide slotted to permit passage of the shanks. A spring member has a slot 35 for engaging a boss on the thimble and a loop 37 providing a detent for a pivoted lid at the side of the casing. For sharpening, the tool is driven in reverse direction, and a stone 43 held in the angle between the forked and curved portions of the work rest.
Patent GB-1276183-A (GB)
Title: Electronic organs
Inventor: LIU JANSUN
IPC: G10H5/04
Filed: 1969-05-13
Abstract: 1276183 Transistor oscillator circuits DECORART & PLAYART Ltd 13 May 1969 24399/69 Heading H3T [Also in Division G5] An electronic organ has a musical tone generating oscillator comprising a common emitter connected transistor TR1, a base supply circuit arranged so that the transistor is conducting but not saturated if supplied with base current only by the base supply circuit R1-R11 and a positive feedback circuit comprising a tapped inductor L1, L2 in parallel with a capacitor C2 and in series with a coupling capacitor C1, and the feedback circuit is arranged so as to drive the transistor into saturation when the collector current is increasing and to drive the transistor to cut off when the collector current is decreasing. By connecting areas 8<SP>1</SP> and 4<SP>1</SP> of a printed circuit board 2 resistor R1 is  connected to the base of the transistor TR1 which is just on the point of conduction. L1 and L2 are coupled on a common core so that current now flowing through L2 and a loud speaker cause a positive feedback to the base of transistor TR1 which saturates and L1 stops feeding a signal to the base. As the base supply resistor R1 is too large to maintain the transistor saturated the transistor then becomes cut off. The transistor remains cut off until a positive voltage developed across C 1  is discharged via resistor R1. The transistor then begins to conduct and the above cycle is repeated. The width of the pulse whilst the transistor is saturated is dependent on the tuned circuit L1, L2, C2. The resistors R1-R11 may be chosen to give notes of a diatonic scale. The connections between the printed circuit areas 4, 8 may be obtained depressing a key carrying suitable contacts as disclosed in the provisional Specification of application No. Co-Pending 6864/69.
Patent GB-208203-A (GB)
Title: Improvements in hot water heating systems
IPC: F24D3/02
Filed: 1922-09-08
Abstract: 208,203. Craig, F. B. Sept. 8, 1922. Heating buildings.- In a hot-water heating- system the circulation is accelerated by the formation of steam globules in the rising pipe B thereby lightening the column and by passing the collected steam through an injector K in the U-pipe G, H on the return side of the system, whereby the steam is condensed and pre-heats the water returning to the boiler D. In the arrangement shown the generation of the steam globules is facilitated by enlarging the upper end A of the rising pipe B, the steam collects in the zone c above the water in the expansion tank C, and the injector K is located in a condensing chamber L and preferably terminates in an expanding tube k<1> which assists in the condensation. Reference has been directed by the Comptroller to Specifications 14474/99, 6852/03, 2445/04, 3797/04, and 22525/13.
Patent GB-654377-A (GB)
Title: Improvements in or relating to method of processing fluid milk and the product resulting therefrom
IPC: A23C9/146
Filed: 1947-09-04
Abstract: In the concentrating of liquid products which contain the constituents of whole milk from which part or all of the fat may have been removed, wherein the liquid is subjected to temperatures above 150 DEG F, the development of undesirably high viscosity and of curd formation is prevented by incorporating in the liquid a minor proportion, e.g. 0.25-5 per cent, of milk solids having a weight ratio of calcium to phosphorous of 0.15-0.75 obtained by the cation-exchange treatment of whole or skim milk.  Milk or skim milk, to which sucrose may have been added, may be forewarmed to 180-235 DEG F, vacuum concentrated at not more than 180 DEG F to 25.9-34 per cent total solids, and sterilized at 220-270 DEG F, the cation-exchanged milk solids being added at the forewarming or before the sterilizing step; the lactose may be allowed to crystallize from skim milk containing sucrose and the cation-exchanged milk solids which has been concentrated to 58-60 per cent total solids.
Patent GB-1317223-A (GB)
Title: Display panels
IPC: H01J17/49
Filed: 1971-04-19
Abstract: 1317223 Discharge apparatus BURROUGHS CORP 19 April 1971 [31 March 1970] 24429/71 Heading H1D A discharge display device comprises a bottom plate 20 having in its top surface a plurality of parallel slots 30 each containing an electrode 60; a centre plate 70 having an array of holes 80 and having a plurality of electrodes 110 attached to its lower surface by an insulating layer (120), Fig. 2 (not shown); and a plurality of electrodes 170 located between the centre plate 70 and a top plate 140, the device being enclosed in a gasfilled envelope constituted by the top and bottom plates. Each electrode 110 has a row of apertures 130 smaller than holes 80, and arranged along a column of the latter, electrodes 60 and 170 being aligned along rows of holes 80. Methods of assembling the device are described.
Patent GB-1384793-A (GB)
Title: Electrodes for electrochemical processes
IPC: H01M4/90
Filed: 1972-05-24
Abstract: 1384793 Iridium oxide SOLVAY ET CIE SA 24 May 1972 [2 June 1971 4 May 1972] 24452/72 Heading C1A [Also in Division C7] A method of manufacturing an electrode with an Ir or Ir oxide coating comprises applying to a substrate of Ti or Ti alloy (optionally carrying a thin surface layer of TiO 2 ), a coating composition comprising thermally decomposable compounds of Ir and of at least one of Li, B, Be, Mg, Ga and Ge in a liquid vehicle. The liquid vehicle may be amyl alcohol, butyl alcohol, isopropyl alcohol, propylene carbonate, dimethyl formamide, dimethyl sulphoxide, dilute HCl, or mixtures thereof. The Ir compound can be any compound that decomposes to the metal and/or oxide, e.g. hexachloroiridic acid. The substrate is cleaned and etched, after which the coating is applied by brushing, spraying, atomizing or immersion, dried and heated in an oxidizing atmosphere to produce Ir in the metallic or oxidized state. The coated substrate may be subsequently coated with a Pt metal or compound. The substrate may be coated and heated to form successive layers. The atomic proportion of Ir to other said element(s) lies between 1/4 and 8/1. Several examples of coating compositions are given.
Patent GB-1062524-A (GB)
Title: Improvements in and relating to electric signal apparatus
Inventor: MCCARTHY BRIAN DENNIS
IPC: H03F1/30
Filed: 1962-06-26
Abstract: 1,062,524. Transistor amplifying circuits. SPECTO Ltd. Sept. 12, 1963 [June 26, 1962], No. 24479/62. Heading H3T. In apparatus comprising a plurality of amplifying channels A 1 , A 2 , ... A n  each of which comprises a transistor amplifier, temperature stabilization is provided by a control signal applied to each of the amplifiers and derived from a control circuit comprising a further transistor amplifier and of which the output varies in accordance with resistance variations of one or more semi-conductor diodes. As shown in Fig. 2, each of the amplifying channels comprises a virtual-earth amplifier. Fig. 3 shows the control circuit which also comprises a virtual-earth amplifier provided additionally with semi-conductor diodes 15, 16 so that the output varies with temperature. The output is applied as base bias to the amplifying channels through respective resistors 17, 18, 19 which are variable to permit individual adjustment for each amplifier.
Patent GB-750490-A (GB)
Title: Co-ordinated fuel feed and exhaust jet control for gas turbine engines
IPC: F02C9/16
Filed: 1951-04-10
Abstract: 750,490. Gas turbine jet propulsion plant. BENDIX AVIATION CORPORATION. April 10, 1951 [April 20, 1950], No. 24486/55. Divided out of 750,472. Drawings to Specification. Class 110(3) [Also in Group XXIX] The subject-matter of this Specification is included in Specification 750,472 but the claims differ. Reference has been directed by the Comptroller to Specification 612,850.