baber/WOPTO huggingface dataset:
Patent GB-304663-A (GB)
Title: Process for cutting or rectification of helicoidal elements
IPC: B23G1/32
Filed: 1929-01-22
Abstract: 304,663. Cousin, M. Jan. 23, 1928, [Convention date]. Milling helical surfaces. - In a process for cutting or rectifying the helical elements described in Specification 282,038, [ C l a s s 110 (ii), Rotary engines &c.], by means of a milling or grinding cutter, the cutter has a profile identical with that of a section of the helical surface normal to the mean helix and the axis of the tool is placed in this section normal to the mean helix and to the axis of the member but displaced from a parallel plane containing the axis of the member by a distance R cos a, where R is the radius of the cutter and a is the angle made by the mean helix with the axis of the element. In forming the helical threads on the male elements an element 1 is mounted between centres 2 on a dividing member 3 arranged on a table 4. The element and the table are driven at the correct speeds to produce the pitch of thread desired by gearing 5. The cutter 6 has a plane base and is mounted with its axis Y, Y' perpendicular to the axis X, X<1> of the element but displaced therefrom by a distance R cos a as shown in Fig. 2, where a, b are the angles of the two sides of the meam helix, a', b<1> are the angles at the tip of the thread and a<11>, b<11> are the angles at the base of the thread. The flanks and parts of the base of the thread immediately adjacent thereto are first cut according to the invention, the adjustment being in the direction f for cutting one flank and in the direction f<1> for the other flank, thus cutting a groove of width 2R sin a at each side of the thread. The middle portion, of width #-4R sin a, where # is the width of the bottom of the thread, is then cut according to known processes. Alternatively, these displacements may be given to the work instead of the cutter, in the opposite directions. The helical elements 7, Fig. 4, which together form a nut, are assembled in any known manner on a central sleeve 8 which is mounted and operated in the same manner as the member 1. After cutting, the elements 7 are attached to an outer ring 9 which forms a guide or the final mounting and the sleeve 8 is removed.
Patent GB-140547-A (GB)
Title: Improvements in or relating to automatic control apparatus
IPC: G05D3/12
Filed: 1919-07-29
Abstract: 140,547. Oulianine, S. July 29, 1919. Steering, balancing, and regulating altitude. - Automatic apparatus for controlling the rudders or elevating planes of air or other craft comprises a constantly-driven shaft d, a differential on the shaft, consisting of pinions e<1> driven by the shaft and bevel-wheels f, f<2> loosely mounted on the shaft, a control shaft g, and a differential on the control shaft consisting of pinions h' adapted to drive the shaft and bevelwheels i, i<3> loosely mounted on the shaft, the bevel-wheels f, i being geared to rotate in opposite directions while the bevel-wheels f<2>, i<3> are geared to rotate in the same direction; and means operated by a pointer a and a contact or contacts b, c are provided for stopping one pair of bevelwheels in order to give motion to the control shaft in one or the other direction. In the arrangement shown, each bevel-wheel of one differential is connected to a stop-wheel i<2>, i<5>, and the stop wheels are adapted to be arrested one at a time by the armatures b<4>, c<4> of electromagnets b<3>, c<3> when the pointer engages one of the contacts b, c. In a modification, a single electro-magnet and contact are provided, and the armature carries two arms which engage one or the other stop wheel according to whether the circuit is open or closed. The shaft g gives motion to the rudder or other controlling device, and the pointer a is controlled by a gyroscope. The contacts b, c are moved beneath the pointer a bv the movement of the ship and are mounted on a carrier fixed to a shaft l. A worm g<1> on the shaft engages a worm-wheel n<2> on the shaft l and assists in returning the contacts b, c to the zero position when the control shaft g is rotated. The position of the contact carrier can also be adjusted by hand by means of a differential consisting of pinions m<1> fixed to the shaft l and bevel-wheels n, n<1> loose on the shaft. The bevelwheel n is fixed to a pulley k<3>, connected by a belt to a hand-wheel k, and the bevel-wheel n<1> is connected to the worm wheel n<2>.
Patent GB-1451343-A (GB)
Title: Scrap preparation
IPC: F25D29/00
Filed: 1973-01-16
Abstract: 1451343 Scrap preparation BRITISH STEEL CORP 16 Jan 1974 [16 Jan 1973] 2264/73 Addition to 1381726 Heading C7D In a process for the fragmentation of cooled scrap, the scrap is cooled in a chamber 14 in the secondary circuit 11 of a heat exchanger 13 by direct contact with cooled gaseous nitrogen or air. Further cooling, either in a continuous or batch operation, by a liquified but normally gaseous coolant is carried out in a secondary apparatus 42 which includes sprays 43 which direct liquid nitrogen on to the cooled scrap 44 prior to feeding to the fragmentation unit 25. The vaporized coolant collected below the cooled scrap 44 is fed to a high pressure blower 46 and receiver 48 and returned to the cooling circuit 11 to make up for leakage losses in the chamber 44. A flow control valve 41 in circuit 11, actuated by controller 53 controlled by gas flow transducers 28, 29 and 54. permits bleed off of coolant gas to maintain chamber 14 at substantially atmospheric pressure, and the bled coolant may be used to pre-cool the scrap. The primary circuit 10 of the heat exchanger 13 is fed with liquid methane gas from a liquification plant 12.
Patent GB-571644-A (GB)
Title: Improvements in wind driven power plants
IPC: F03D7/02
Filed: 1944-02-08
Abstract: 571,644. Wind motors. BURGESS, A. F. (Wincharger Corporation). Feb. 8, 1944, No. 2317. [Class 110 (iii)] The motor 11 is free to rotate in a horizontal plane on a bearing 25 and also to occupy various positions such as shown dotted, due to the structure being mounted on side pins 17. The mill 12 drives an electric generator, wires 27 leading to slip-rings, but other types of mechanism may be driven. Fins 15 and tail planes 16, keep the mill 12 facing the wind. The speed of rotation is limited by plates 14 attached to the mill. A spring 23 constitutes means to resiliently force the housing 10 to a median position in the absence of wind.
Patent GB-1156478-A (GB)
Title: Heterocyclic Carbonyl Compounds
Inventor: WINTER M
IPC: A23L27/20
Filed: 1966-05-02
Abstract: 1,156,478. Heterocyclic carbonyl compounds. R. FIRMENICH, G. FIRMENICH, R. E. FIRMENICH, and F. H. FIRMENICH, [trading as FIRMENICH & CIE.]. 2 May, 1966 [30 April, 1965; 18 April, 1966], No. 2379/69. Divided out of 1,156,472. Heading C2C. [Also in Division A2] The invention relates to compounds having the formulµ where R represents an acetyl group, a propionyl group or a butan-2-onyl group, where R<SP>1</SP> represents a hydrogen atom, an ethyl group or a propyl group. Examples describe the preparation of all the above compounds.
Patent GB-1466102-A (GB)
Title: Production of security documents
IPC: G03C5/08
Filed: 1975-01-13
Abstract: 1466102 Security documents THOMAS DE LA RUE & CO Ltd 13 Jan 1975 [18 Jan 1974] 02409/74 Heading B6A A security document has a substrate provided with the fluorescer precursor substance of U.K. Specification 1,298,462, and information is recorded in the substrate by emission from a cathode ray tube provided with a phosphor emitting U.V. light, preferably within the range 200-300 nm., to produce a pattern which will fluoresce under visible or U.V. light. The phosphor may emit visible radiation simultaneously with the U.V. light. The identification means may be photograph or a signature which is viewed by a television camera connected to the cathode ray tube.
Patent GB-743998-A (GB)
Title: Improvements in or relating to coal mining
Inventor: WYNN ARTHUR HENRY ASHFORD
IPC: E21C37/12
Filed: 1953-01-28
Abstract: 743,998. Blasting apparatus. MINISTER OF FUEL & POWER. April 27, 1954 [Jan. 28, 1953], No. 2439/53. Class 9(1) To break up a coal seam A water under pressure is introduced into a borehole C from an infusion tube 1 comprising coaxial elements capable of relative longitudinal movement to expand a rubber seal 2 and while the system is still under pressure, a high pressure pulse is communicated to the infused water through an auxiliary reservoir of water. Water is supplied to the inner element of the tube 1 from a container 3 mounted on a baseplate 5 and connected by an outlet pipe 7 to a tee-piece 8 having its second limb connected through a tube 9 to the infusion tube 1 and the third limb connected to the water supply main 10. A safety valve 11, Fig. 2, is provided in the outlet pipe, a non-return valve (not shown) in the connection to the water main, which is provided with a stop-valve, flow-meter and pressure gauge 12. At the rear or breech end of the container 3 is mounted a cartridge 13 containing a propellent charge to be fired by an electric fuzehead 14 initiated by an exploder 15. Instead of a cartridge the breech may be connected through a control valve to a source of high pressure gas.
Patent GB-104023-A (GB)
Title: Apparatus for Making Gas from Liquid Hydro-carbons.
Inventor: DAYTON WALTER CLINT
IPC: F23D11/44
Filed: 1916-02-18
Abstract: 104,023. Dayton, W. C. Feb. 18, 1916. Oil gas.-Relates to apparatus for mixing a liquid hydrocarbon with air or other combustion-supporting gas and feeding the mixture to gasifiers, oil burners, &c., the mixing device being of the kind having means for automatically maintaining constant the proportion of liquid to air independently of the rate of delivery of the mixture. The mixing- device comprises a constant-level vessel 42 fitted with an overflow 33 and fed with oil from a reservoir 27 by a pump 29. Air from a pump 21 is led to the surface of the oil in the reservoir 27 and in the vessel 42, and also to a pipe 19 for mixing with the oil drawn from a depending pipe 34 into the ejector pipe 18 past a needle valve 17, this valve being provided with a dial and pointer 36. In the planet shown, the mixture is passed into retorts 4 mounted in a refractory-lined chamber 2 and heated by the combustion of some of the gas produced, preliminary heating-means 8 being also provided for use when starting the apparatus. An air-relief valve 39 is controlled by the motion of the gas-holder through levers 40, 41.
Patent GB-192408-A (GB)
Title: Improvements in rotary distributing valves
IPC: F01L7/08
Filed: 1923-01-26
Abstract: 192,408. Renaudin, A. Jan. 26, 1922, [Convention date]. Rotary conical and disc valves.-A valve of the rotary disc type, particularly applicable as a distributing-valve for engines, is made of conical form and is provided with a balancing-piston to relieve pressure on the working face. Inlet and exhaust ports 2, 3 are formed in the head of the cylinder 4, and a short concentric cylinder 5 may communicate with the atmosphere or, as shown in Fig. 1, with a water jacket 11. The conical distributing- valve 10 is integrally connected to a piston 7, and is provided with a port 12 admitting and discharging fluid to and from the space 13 which is permanentlv connected to the cylinder 14. The dimensions of the valve 10 and piston 7 are such that there is a small resultant pressure pressing the valve to its seat. Passages 17 for lubricant may be provided in the valve. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification, Fig. 2 (Cancelled) in which the valve 10 may be connected by a tube 18 to a balancing piston 19 in a cylinder 20 outside the engine. In another modification, Fig. 3 (Cancelled), two concentric valve cones 10, 10<a> may be used, rotating at different speeds or in opposite directions, to obtain rapid opening and closing of the ports. Separate balancing pistons 19, 19<a> are. provided for the valves. This subject-matter does not appear in the Specification as accepted.
Patent GB-489654-A (GB)
Title: Process and apparatus for conducting dialytic operations
IPC: C01D1/38
Filed: 1937-01-30
Abstract: <PICT:0489654/III/1> A dialysis apparatus comprises two membranes separated by wire sieves or perforated corrugated sheets, the whole being spirally wound to form two adjacent spiral chambers 3, 8, through which the liquids flow in opposite directions.  The spiral is enclosed in a cylindrical container 16, and the bottoms of the chambers are sealed by immersion in paraffin wax or an inert mud of quartz flour &c.
Patent GB-510329-A (GB)
Title: Improvements in coated abrasive articles
IPC: B24D11/00
Filed: 1938-01-28
Abstract: 510,329. Flexible abrasive articles; resinous condensation products. BEHR-MANNING CORPORATION. Jan. 28, 1938, No. 2840. Convention date, Feb. 6, 1937. Drawings to Specification. [Class 60] [Also in Group IV] In making abrasive coated articles a viscous adhesive is formed on the backing and treated to produce a fluid surface zone to wet and retain the abrasive grains subsequently applied. The adhesive may be animal glue or synthetic resin. The surface zone may be produced by spraying with a solvent, a solution of the adhesive, an adhesive in more fluid condition than that on the backing or by radiant heat, e.g., from a hot plate. Suitable solvents for use with phenolformaldehyde or phenol-hexamethylene tetramime resins are furfural, ethyl alcohol or acetone. Alkyd resins, urea-formaldehyde resins, polyvinyl resins or phenol-formaldehyde resins modified by polyvinyl chloride or polyvinyl acetate may also be used. The adhesive and abrasive may be applied as described in Specification 510,328. Orientation methods as described in Specifications 378,014, 379,379 and 398,907 may be used. Before applying a sizing coating of adhesive to the abrasive coated article it may be similarly pre-treated, for example by rolls or by spraying with a solvent &c. to wet the abrasive. Suitable synthetic resins for use as adhesives are those described in Specification 510,328; a semi-flexible resin made by heating phenol, tung oil and phosphoric acid for five hours at 180‹C., adding hexamethylene tetramine and heating till ammonia is evolved, adding a solvent, e.g., turpentine and further hexamethylene tetramime and heating just to solution (Example 3); and a phenol-aldehyde initial condensate made by heating phenol, paraformaldehyde and ammonia to solution at 100‹C., which may be used in conjunction with more viscous resins. Specification 510,330 also is referred to.
Patent GB-1453273-A (GB)
Title: Penetrometers
IPC: E02D1/02
Filed: 1975-01-23
Abstract: 1453273 Soil testing probe FONDASOLTECHNIQUE SA 23 Jan 1975 [29 Jan 1974] 2896/75 Heading G1 S A soil testing probe has a central point 6, Figs. 1 and 2 connected by a screw thread 8 to a central rod comprising sections 14, 17, and the point 6 is connected by a shearable cotter pin 10 to a peripheral part 7 surmounted by a part 9 engaging in a sleeve 2 forming part of an inner tube made up of parts 15, 18. The inner tube is spaced and centred from an outer concentric tube 19 so that during a penetration test the probe is firstly driven in with the first section 'B' of the set of tubes and then are added further sections B, C and D comprising rod parts 17 and fitting tube extensions 18, 19. The central rod and point 6 transmit the probing force in soft soil to the whole point arrangement comprising both parts 6 and 7, but when harder soil is reached the pin 10 shears and the point 6 proceeds alone. The probe is extracted by engaging the jaws of an extraction device (not shown) in the narrowed parts of the outer tube which when lifted entrains the inner tube.
Patent GB-210804-A (GB)
Title: An air compressor
IPC: F04F5/18
Filed: 1924-02-04
Abstract: 210,804. Bellec, Y. Feb. 3, 1923, [Convention date]. Blast and aspirating apparatus, injector and ejector. - Apparatus for compressing air by the combined actions of a screw fan and an injector comprises an annular chamber B in which is arranged a propeller F. A series of ducts D, fitted with inducing nozzles D" and delivery cones D<1>, project into the chamber and communicate at their other ends with a header C leading from an exhaust chamber L. The arrangement is such that the current of air produced by the propeller, in passing through the nozzles D<11>, induces a flow of air from the header C, compresses it and discharges it by pipes E to a storage chamber. An auxiliary inducing nozzle Q is provided at the head of the chamber L. This chamber communicates through a non-return valve N and a pipe T either with another vessel or with the atmosphere. When the pipe T communicates with another vessel, a valve communicating with the storage chamber increases the pressure in the apparatus.
Patent GB-641748-A (GB)
Title: Improved sign and display devices and production thereof
IPC: G09F7/00
Filed: 1948-02-02
Abstract: An ink for making pictorial designs by the stencil screen process is formed with a basis of nitro-cellulose, or other cellulose compound such as ethyl cellulose, cellulose aceto-butyrate, or cellulose aceto-propionate, and a resin may also be added together with a solvent comprising organic liquids such as mono-butyl ether of ethylene glycol, esters of carboxylic acids, alcohols, xylol, naphthas, or mineral spirits having boiling points between 110 DEG and 230 DEG  C., so that the evaporation rate is low enough to permit passage through the screen readily. The mixture is finally pigmented. Example (1) 60 to 80 second nitro-cellulose is dissolved in mono-butyl ether of ethylene glycol, and to this is added alkyd resin, and a plasticizer, and the mixture has a viscosity of 700-900 poises at 25 DEG  C.  Example (2) nitrocellulose 12.2 parts by weight, denatured ethyl alcohol 20.2 parts; ethyl acetate 17.5 parts; toluol 48.3 parts.  The alkyd resins may be replaced by other resins such as natural resin, phenolic resins, and modified resins.
Patent GB-1287365-A (GB)
Title: Electromagnetic relay
Inventor: KRIZMAN THEODORE M
IPC: H01H51/28
Filed: 1970-01-21
Abstract: 1287365 Polarized centre-stable electromagnetic relays ADAMS & WESTLAKE CO 21 Jan 1970 [31 Jan 1969] 3027/70 Heading H1N A polarized relay has permanent magnets 16, 18 adjacent the outer ends of magnetic contact members 13, 14, 15 arranged in an envelope 12 so that the movable contact 11 has the same polarity as the fixed contacts 13a, 14a and when the coil 19 is not energized, the armature contact 11 is equally repelled by the fixed contacts 13a, 14a. A magnetic strap connects the like poles of the magnets 16, 18 which are insulated by members 17, 22a. Magnetic members 20, 21 are also insulated from each other and extend from inside the coil 19 to respective contact members 13, 14.
Patent GB-727414-A (GB)
Title: Improvements in or relating to the production of moistureproof sheet wrapping materials
Inventor: OSWIN CHARLES ROBERT
IPC: C08J7/048
Filed: 1952-02-05
Abstract: 727,414. Moistureproof films. BRITISH CELLOPHANE, Ltd. Feb. 2, 1953 [Feb. 5, 1952], No. 3047/52. Addition to 663,645. Class 140. In the process described in the parent Specification the aqueous dispersion of vinylidene chloride/acrylonitrile copolymer, described therein and in Specification 655,732, applied to films of water-sensitive organic non-fibrous material, is replaced by an aqueous dispersion of a copolymer of a mixture of 35-96 per cent vinylidene chloride and 65-4 per cent of one or more of the vinyl or substituted vinyl compounds methacrylonitrile, an alkyl ester of acrylic or methacrylic acid having 1-5 C. atoms in the alkyl group, vinyl chloride, vinyl acetate, or styrene. The mixture may include 0.5-10 per cent of an acidic ethylenic compound, namely itaconic or citraconic acid or anhydride, or mesaconic acid, and acrylonitrile may be added, or may be substituted for one of the vinyl or substituted vinyl compounds when another is included in the mixture. As a modification, acrylonitrile may be substituted for all of the vinyl or substituted vinyl compounds, when an acidic ethylenic compound is included. As a further modification, acrylonitrile may be substituted for all of the vinyl or substituted vinyl compounds, in absence of an acidic compound, provided the proportion thereof is 65-25 per cent. The aqueous dispersion may be polymerized in the presence of 0.5-8 per cent of a dispersing agent, e.g. the water-soluble condensation product of formaldehyde with a naphthalene or alkyl substituted naphthalene sulphonic acid or an alkali metal or ammonium salt thereof, and 0.24-2 per cent ammonium persulphate and 0.12-1 per cent sodium meta-bisulphite as catalyst and promoter therefor. The polymer is predominantly amorphous. The dispersion may include agents to improve the slip characteristics such as ester type waxes described in Specification 655,006, e.g. camauba, spermaceti, candelilla, or palm wax, hydrogenated castor oil, benzyl stearate, pentaerythritol di- or tetrastearate, or octadecyl stearate. Examples refer to certain examples in the parent Specification, which relate to regenerated cellulose film, and exemplify coatings of copolymers of vinylidene chloride with methyl methacrylate with and without itaconic acid, with vinyl chloride and with acrylonitrile. Specifications 674,728, 677,926 and 692,154 also are referred to.
Patent GB-214362-A (GB)
Title: Improvements in twist lace and in the method of making the same
IPC: D04C1/00
Filed: 1923-02-02
Abstract: 214,362. Aird, R., and Girvan, J. Feb. 2,1923. Lace machines; lace.-Square-meshed curtain fabric with clothing, of the kind known as Tuscan lace, is made on curtain or other machines with jacks, by the use of two warp threads 5, 6 and two spool threads 7 to each bobbin thread, the spool threads being caused to pillar with adjacent groups of bobbin and warp threads alternately to produce the net, while to produce clothing they are caused to tie with the adjacent groups of threads alternately. The usual jack bar cam is replaced by a plain) roller so that no movement is imparted to the jacks other than by the jacquard. While the jacks are stationary the spool threads pillar. If the jacks are withdrawn during one motion the spool threads cross from one pillar to another and form bars of the net. If the jacks are withdrawn for several successive motions clothing is made. The spool bar is shogged once only at each motion.
Patent GB-451913-A (GB)
Title: Process for the manufacture of dialkyl substituted amides of isoxazole carboxylic acids
Filed: 1936-02-01
Abstract: Isoxazole-carboxylic acid dialkylamides are prepared by treating isoxazole-carboxylic acids or their reactive derivatives with secondary alkylamines.  The products are useful therapeutically. According to the examples: (1) 3 : 5-dimethylisoxazole-4-carboxylic acid is converted by means of thionyl chloride into its acid chloride, which is then treated with diethylamine or dimethylamine to give the corresponding amide; (2) 5-methylisoxazole-3-carboxylic acid is heated with phosphorus pentachloride and the resulting acid chloride reacted with diethylamine or dimethylamine; (3) 3- or 5-methylisoxazole-4-carboxylic acid diethylamide is prepared by first converting the acid into its acid chloride with phosphorus pentachloride and then heating with diethylamine.  3- or 5-Methylisoxazole-4-carboxylic acid is obtained by saponifying the reaction product of ethoxymethylene-acetoacetic acid ester with hydroxylamine.
Patent GB-456054-A (GB)
Title: Improvements in or relating to the compression of gases, particularly gas mixtures containing acids of nitrogen
IPC: F04B37/18
Filed: 1935-01-30
Abstract: 456,054. Pistons. DU PONT DE NEMOURS & CO., E. I., Wilmington, Delaware, U.S.A. Jan. 30, 1935, No. 3101. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 10, 1935]. [Class 122 (i)] [See also Group XXVIII] The frictional surfaces of a compressor for gases containing corrosive constituents are made in part at least of dissimilar materials the dissimilar contacting surfaces being kept above the temperature of condensation. Thus, the piston rings and piston rod packing may be of graphite, the main parts being of iron or chrome iron alloy.