baber/WOPTO huggingface dataset:
Patent GB-445888-A (GB)
Title: Improvements in and relating to the production of beryllium alloys
IPC: C22C1/02
Filed: 1934-10-19
Abstract: Beryllium alloys are made by reducing a beryllium ore containing beryllium oxide and other oxides, e.g. silica, alumina, or both silica and alumina, with carbon in contact with a bath of a metal or mixture of metals in vacuo, in an atmosphere mainly consisting of hydrogen, or in air at any convenient pressure.  The temperature or the temperature and duration of the reduction is controlled in accordance with the relation between the composition of the ore and that of the alloy to be produced.  The ore may be reduced in stages, e.g. an ore containing beryllium oxide and silica may first be reduced with carbon in contact with a bath of metal such as iron at a temperature between 1400 and 1600 DEG  C., a part or the whole of the silica being reduced into the metal bath. The unreduced part of the ore is then reduced in contact with a fresh bath of metal, e.g. iron, at a higher temperature, e.g. 1800-2000 DEG  C., to reduce the beryllium oxide and any unreduced silica.  Ores containing beryllium oxide and alumina, e.g. chrysoberyl, or containing beryllium oxide, silica, and alumina, e.g. beryl, may be similarly treated when the relative amount of beryllium and aluminium or beryllium, aluminium, and silicon desired in the final alloy are not substantially identical with those in the ore.  In the fractional reduction of an ore containing aluminium oxide and beryllium oxide, the reduction is effected at 1800-1900 DEG  C. at which temperature the reduction of the alumina is more rapid than that of the beryllium oxide, the duration of the reaction being controlled to determine the amount of alumina or alumina and beryllium oxide reduced.  When the relative amounts of beryllium, aluminium, and silicon desired in the final alloy are substantially the same as those in the ore, the ore may be reduced in one stage into the bath of metal, e.g. copper, the temperature and duration of the reduction being chosen so that all the oxides are reduced.  The preparation by this means from a beryl ore of an alloy containing 86 per cent of copper, 8,75 per cent of silicon, 1,75 per cent of beryllium, and 3,5 per cent of aluminium, and an alloy containing 90-97 per cent copper and silicon, beryllium, and aluminium in the same relative proportions is described, the latter alloy, which is capable of segregation hardening, being adapted for the manufacture of bearings subject to sliding friction. From the same ore by fractional reduction an alloy containing copper and 0,5-2 per cent of silicon, 0,5-2 per cent of beryllium, and 1-4 per cent of aluminium can be obtained.  The carbon used in the reduction may be dissolved in the metal bath or mixed with the ore, or may be added to both the metal bath and the ore.  A flux, e.g. an alkaline earth oxide, may be added to the ore.  The ferro silicon or ferro-silicon-aluminium which is obtained in the first stage of a fractional reduction when iron is used as the metal bath can be used as raw material or as a finished product, e.g. for transformer sheets.  Specification 415,066 is referred to.
Patent GB-323727-A (GB)
Title: Improvements in and relating to the cooling of plates or sheets of compound glass or other material after heat treatment
IPC: B32B17/10
Filed: 1928-10-17
Abstract: 323,727. Riley, G. B. Oct. 17, 1928. No Patent granted (Sealing fee not paid). Compound transparent sheets. - Plates or sheets of compound or reinforced glass are cooled after heat treatment by conveying them through a cooling-chamber 2 on a belt on which a cooling medium is spread. An endless conveyer belt 10 of fabric or other absorbent material is deflected through a bath 11 of liquid, preferably cooled continuously by refrigerating pipes 9, and its upper stretch passes over a supporting conveyer belt 3. The plates &c. are delivered on to the belt 10 by a conveyer 7 and may be discharged by similar means.
Patent GB-1195366-A (GB)
Title: Improved Shuttering Prop and Assembly for use in Building Construction
Inventor: DALTON JOHN BRYAN
IPC: E04G11/48
Filed: 1966-07-06
Abstract: 1,195,366. Supporting floor shuttering. MILLS SCAFFOLD CO. Ltd. 30 June, 1967 [6 July, 1966], No. 30238/66.-Heading E1S. Shuttering for concrete floors comprises panels 10 supported by hollow beams 13 at their ends, and, optionally, cross beams (not shown), running perpendicular to the beams 13, the beams being supported at their ends by props 14 via stirrups 18 which are vertically-adjustable with respect to fixed end-plates 17 which serve to prop the floor after the shuttering has been lowered. The props may each have a vertically-adjustable foot 20 upon which the main portion 15 of the prop is supported by a pin 22 resting on a threaded collar 23. Each stirrups 18 has two channelsectioned support section 19 for the main beams 13, and two laterally-projecting welded on plates carrying pins for supporting the cross .beams. The stirrup 18 is welded to an upper tube 24 which is supported on the body portion 15 by a second threaded collar 23 which sits on a second pin 22 passing through the body portion 15.
Patent GB-1130903-A (GB)
Title: Electrical connector captivated terminal release tool
IPC: H05K13/04
Filed: 1967-06-30
Abstract: 1,130,903. Tool for extracting electrical terminals. INTERNATIONAL STANDARD ELECTRIC CORP. 30 June, 1967 [1 July, 1966], No. 30281/67. Heading B4C. [Also in Division H2] A tool 24 for extracting an electrical terminal 16 from an insulation block 10 comprises a tubular portion 26 formed integrally with a rear portion 28 having a latch 32, the portion 28 being flexible so that the latch may be flexed radially outwardly with respect to the tubular portion. As shown the tool, which may be made from plastics material, is provided with a pair of tubular portions 26 each formed with a longitudinal split so that they may be sprung over the terminals 16. The terminals are formed with a flange 16a and retained in the block 10 by means of elements 14 having spring fingers 14a adapted to engage the flange; the terminals are connected to a bus-bar 18 having a flange 18a against which the latch normally engages. To remove the terminals, the latch is raised and the tool pressed towards the flanges 16a in order to release the spring fingers.
Patent GB-1058596-A (GB)
Title: Emulsifier for emulsions of the oil-in-water type with application for drilling
IPC: F02B3/06
Filed: 1963-08-01
Abstract: Residues obtained after separating fatty acids prepared by the oxidation of hydrocarbons, (15-50C) are saponified with a solution of an alkali metal oxide or hydroxide.  The residues contain up to 20% by weight of fatty acids (up to 25C), and polymer acids, oxy-acids, aldo and keto acids and condensation products thereof and unsaponifiable products and are admixed with mineral oil, e.g. diesel oil for the saponification.  The product is used to form oil-in-water type emulsions together with suspending agents, for use in oil drilling.ALSO:Oil-in-water emulsions are prepared, using as emulsifying agents soaps obtained by reacting residues obtained after the separation of fatty acids from the product of a process of oxidation of hydrocarbons (15-50c), with a solution of an alkali metal oxide or hydroxide (see Division C2).  The soaps are dispersed in mineral oil e.g. diesel oil and weighing agents such as barium hydroxide and trass-gel may be present.  The emulsions are used as drilling fluids.
Patent GB-196871-A (GB)
Title: Improvements in milk churns or containers
IPC: A01J15/06
Filed: 1922-11-08
Abstract: 196,871. Frost, A. C. Nov. 8, 1922. Retaining-devices in receptacle neck above closure; packing-rings for stoppers; sealing-devices for stoppers and other closures. - In milk churns &c. in which the lid compresses a sealing ring between, shoulders formed on the lid and on the body of the can, a rubber or other sealing ring 5 is fixed on a sheet-metal base 6, secured to the lid 1, by turning up one or both edges of the sheet to form one or more grooves 6a to receive the edge or edges of the base 5a of the sealing ring. As shown, one edge of the base 5a is carried in a groove 7 in the lid 1, and one or more spring- pressed bolts 17, pierced transversely to take the shackle of a padlock, engage holes in the can to secure the lid in position. The metal base 6 may be detachably secured to the lid.
Patent GB-448320-A (GB)
Title: Improvements in or relating to dynamo electric generators
IPC: H02K23/20
Filed: 1935-11-05
Abstract: 448,320. Synchronous alternators. STANDARD TELEPHONES & CABLES, Ltd., 63, Aldwych, London.-(Assignees of Bell Telephone Manufacturing Co. Soc. Anon.) Nov. 5, 1935, No. 30586. Convention date, Nov. 6, 1934. [Class 35] The field winding of a variable speed generator is supplied with pulsating or rectified alternating - current, derived from the generator or another generator driven by the same prime mover after passing through a low pass filter circuit. In the form shown, current derived from auxiliary brushes on the main generator is rectified after passing through a low pass filter F and supplied to the field winding El.
Patent GB-1065817-A (GB)
Title: Polymerisation process
IPC: C08F136/06
Filed: 1964-08-04
Abstract: A trans-1,4-polydiene is made by polymerizing a 1,3-diene in an organic solvent in the presence of a catalyst system comprising a compound of a metal of Group VIII of the Mendeleeff Periodic Table, an organometallic compound of aluminium, and a tertiary amine present in an amount of more than 7 mole per cent based on the total amount of 1,3-diene, compound of Group VIII, amine, and organo-aluminium compound.  Prior to polymerization a small proportion of a compound containing an active hydrogen atom may be added to the catalyst system.  The compound may be water or methanol.  Specified dienes are butadiene, isoprene, and 1,3-pentadiene.  The Group VIII compound may be Co, Cl2 or NiCl2, and the aluminium compound may be triethyl-, tripropyl-, tri-butyl aluminium, or aluminium diethyl chloride, aluminium dipropyl chloride, aluminium diethyl bromide, or an aluminium sesquihalide.  Specified amines are triethyl-, tripropyl-, tributyl-, trihexyl-, trioctyl-, tribenzyl - amine, dimethyl - aniline, N - methylmorpholine, and pyridine.  The polymerization medium may be a hydrocarbon solvent, or an ether, or a mixture.  The polymer is recovered by conventional techniques.
Patent GB-1455346-A (GB)
Title: Vehicle suspensions
IPC: B60G17/005
Filed: 1974-07-10
Abstract: 1455346 Retractable suspensions EEZION Ltd 23 May 1975 [10 July 1974] 30604/74 Addition to 1353108 Heading B7D In a retractable suspension comprising on each side of a trailer chassis 10 a pivoted wheel arm 12 movable by means of an hydraulic ram 19 between a position in which the chassis is lowered to facilitate loading and a position in which the chassis is raised and a leaf spring 18 on the arm 12 engages a latch mechanism as described in the main patent, the end 28 of the arm 12 remote from its pivot 14 and the upper end of a support arm 15 to which the ram 19 is connected are cranked outwardly from the chassis 10 to provide extra clearance for enabling the trailer to carry a wider vehicle without any increase in overall width.
Patent GB-1048082-A (GB)
Title: Improvements relating to induction heating
Inventor: MERRETT John
IPC: H01F5/00
Filed: 1962-08-09
Abstract: 1,048,082. Induction heating coils. HOOVER Ltd. Aug. 7, 1963 [Aug. 9, 1962], No. 30615/62. Heading H5H. An induction heating coil is wound so that in any section through its axis there are conductors at different distances from the surface and comprises a number of separate current paths electrically connected in parallel, each path having parts of its length nearest to the surface and parts further from it. As shown, a coil 20 comprises a number of concentric sections A, B, C, D each in four layers 1, 2, 3, 4, the sections being connected in groups of four such as A1, B2, C3 and D4 to provide four parallel paths (Fig. 2, not shown). Each section is wound in the form of a spiral from flat tape the width of which extends parallel to the axis of the coil.
Patent GB-679856-A (GB)
Title: Improvements in electrical relays
IPC: H01H50/20
Filed: 1949-11-29
Abstract: 679,856. Electromagnetic relays. WALTER INSTRUMENTS, Ltd., ARMSTRONG, C. J., and NOAD, J. E. G. Nov. 29, 1950. [Nov. 29, 1949] No. 30627/49. Class 38 (v). Upon energization of an iron-clad solenoid 3, a plunger 7 is drawn down against the action of a return spring 13 and a pin 19 on the plunger actuates contact springs 21, 22, 23 mounted on an insulating body 26 at the end of the solenoid. In the form shown there are two sets of contact springs and the middle spring 22 of each set is adapted to engage contacts 24 on the outer springs 21, '23 of the other set. The outer springs tend to move inwardly but normally the ends of the pin 19 hold the contacts 21 out of engagement with the contacts 22. When the relay is actuated, the pin 19 presses the springs 23 out of engagement with the contacts 22 and the springs 21, 22 engage.
Patent GB-1431224-A (GB)
Title: Compositions which are polymerizable by ultraviolet irradiation
IPC: C08F283/01
Filed: 1973-06-27
Abstract: 1431224 U.V.-polymerizable compositions BADISCHE ANILIN- & SODA-FABRIK AG 27 June 1973 [1 July 1972] 30627/73 Heading C3P [Also in Division G2] Compositions curable by U.V. irradiation comprise one or more compounds having at least one polymerizable carbon-carbon multiple bond and a photoinitiator which is a diketone monoketal of the formula wherein R and R<SP>1</SP> which may be the same or different, are H, Cl, C 1 -C 4  alkyl, C 1 -C 4  alkoxy or (C 1 -C 4  alkoxy) C 1 -C 4  alkyl, X and X<SP>1</SP> which may be the same or different are C 1 -C 4  alkyl or (C 1 -C 4  alkoxy) C 1 -C 4  alkyl, or together represent -C n H 2n - in which n is an integer from 2-8, and A and A<SP>1</SP> which may be the same or different, are a 6-membered divalent aromatic radical. In examples the ketal photoinitiators are used with the following polymerizable systems: (a) unsaturated polyester derived from maleic anhydride/phthalic anhydride/propylene glycol dissolved in styrene, (b) a mixture of a polyamide and the diether formed from 2 moles N-methylolacrylamide and 1 mole ethylene glycol, (c) a mixture including mineral oil varnishes, dibutyl maleate and green pigment. Applications for the compositions include coatings, printing plates, holograms, photoresist lacquers, poromeric sheets and printing inks.
Patent GB-1515523-A (GB)
Title: Process for the production of polyisocyanates
IPC: C08G18/79
Filed: 1975-07-23
Abstract: 1515523 Modified isocyanates BAYER AG 23 July 1975 [30 July 1974] 30788/75 Heading C2C [Also in Division C3] Modified isocyanates, which suitably have an NCO group content of 0À5 to 25% by weight, an acyl urea group content of 0À5 to 50% by weight and a carbodiimide group content of 0 to 25% by weight, may be prepared by reacting a compound containing isocyanate and carbodiimide groups with a carboxylic acid in amounts such that there are 0À2 to 1À2 gram equivalents of carboxyl groups present per gram equivalent of carbodiimide groups initially present. The compound containing isocyanate and carbodiimide groups may be one obtained by subjecting a polyisocyanate, which may be a polyurethane prepolymer, to partial carbodiimide formation. Particularly preferred carboxylic acids are aliphatic carboxylic acids containing 1 to 18 carbon atoms. Polyurethanes may be prepared from the modified polyisocyanates by conventional means.
Patent GB-1237781-A (GB)
Title: Needle bar for hosiery linking machines
Inventor: CONTI CESARE
IPC: D05B7/00
Filed: 1968-06-27
Abstract: 1,237,781. Sewing machines. COMPLETT S.p.A. 27 June, 1968 [28 June, 1967; 12 April, 1968], No. 30808/68. Heading D1G. A needle 102, cooperating with the point dial 29 of a linking machine, is carried at one end of a needle bar 103, the axis of the needle being offset at an adjustable distance from that of the bar. The latter is slidably and rotatably mounted in a fixed bearing 104 and carries at its other end a crank pin 106 having a ball head disposed in a groove 7 formed in a block 8 at one end of a lever 9 pivoted at its other end on a crank pin carried by a crank 13 on a rotary driven shaft 14. Lever 9 is pivoted on a pin 10 carried by a lever block 11 rigid with bar 103 and an upper block 11 slidable on a fixed rod 12. Bar 103 both reciprocates and oscillates. Needle 102 cooperates with a threadlaying finger 28 carried by an arm 27 adjustable fixed to one end of a rod 23, the other end of which is connected by a ball joint 24 to a fixed arm 25. Rod 23 passes through a sleeve 22 rigid with the strip 21 of an eccentric carried at one end of a shaft which is journalled in a fixed bearing 20 and carries at its other end a driven gear 19. The arrangement is thereby such that finger 28 traces an elliptical path.
Patent GB-338673-A (GB)
Title: Improvements in and relating to transfer compositions
IPC: B41M5/10
Filed: 1929-10-11
Abstract: 338,673. Meyer, p. Oct. 11, 1929. Carbon papers and like transfer materials. - A coating composition for carbon papers and manifolding or transfer forms consists of a watersoluble soap mixed with a water-soluble dye. For example, teu parts of hard or grain soap are boiled with sufficient water to make a stiff paste, and after cooling one part of dye is stirred in, the mixture being applied to a transfer form; for carbon papers, eight parts of soap and three of dye are similarly mixed. A small proportion of oil may be added to prevent cracking due to heat if rollers are used in the coating operation. The composition may be applied by spraying, whereby a relatively thin coating can be determined for transfer forms, and stencils can be used to localize the coating. Copies made with the composition can be moistened to obtain additional copies.
Patent GB-796013-A (GB)
Title: Improvements in or relating to automatic-closure valves
Inventor: DAY CHARLES EDWARD
IPC: F16K31/385
Filed: 1954-10-26
Abstract: 796,013. Valves. COAL INDUSTRY (PATENTS), Ltd. Jan. 26,1956 [Oct. 26, 1954], No. 30893/54. Class 135. A valve which closes automatically whenever the upstream or downstream pressure drops below a given value comprises a casing in which is mounted a diaphragm 5 capable of sealing the inlet 2a from the outlet 2b and a second diaphragm 4 spaced apart from and having a larger effective area than the diaphragm 5, the two diaphragms 4, 5 and a part 3 of the casing defining a control chamber 64 arranged to communicate with the upstream or downstream pressure fluid through manual control means such as the auxiliary valve 6. The diaphragms 4, 5 are clamped between casing parts 1, 3 and 2, 3 respectively and are centrally mounted on a spindle 11 with a spacer member 10, the parts being secured by a screwed sleeve 12 and a nut 13. The diaphragm and valve assembly is loaded in the closing direction by coaxial springs 15, 16 arranged between discs 17, 18. The disc 17 is provided with a screwed plug 21 having a non-circular recess filled by a wooden plug 21a to hinder access to the adjusting sleeve 12, the upper end of which has a left-hand internal thread 22 requiring a correspondingly threaded tool for adjustment purposes. The auxiliary valve is operated by the rotation of a knob 40 against the action of a torsion spring 51 secured to the casing part 3 and to the valve 6. A flange 47 on the valve 6 has a detent co-operable with a spring-loaded ball 49. The valve 6 is retained in the casing part 3 by a washer 52 and a spring clip. The casing part 1 is open to the atmosphere through passages 60 fitted with filter plugs 62. The valve inlet 2a communicates with the auxiliary valve 6 through a bore 37 fitted with a filter plug 39, an annular groove 36 and a channel 33. The outlet 2b communicates with the auxiliary valve through a bore 41 adjacent a ridge or projection 45, a filter plug 43 and a passage 34. The auxiliary valve 6 has an axial bore 30 and radial bores 31, 32 which in the position shown connect the chamber 64 to the atmosphere. To open the main valve, the valve 6 is turned to connect the bore 31 to register with the passage 33 so that inlet pressure is admitted to the chamber 64. Subsequently the valve 6 is turned so that the bore 32 is aligned with the passage 34 so that the chamber 64 is open to the outlet 2b. The valve 6 is retained in this position by the ball 49 so that if the supply pressure fails or the outlet pressure falls unduly low, e.g. due to rupture of a hose, the main valve closes and cannot re-open since no pressure can communicate with the chamber 64. The projection 45 creates a venturi effect in the passage 41.
Patent GB-1108211-A (GB)
Title: Improvements relating to electron tube circuits
IPC: G01T1/185
Filed: 1965-07-21
Abstract: 1,108,211. Discharge tubes. STATITROL CORPORATION. 21 July, 1965 [24 Aug., 1964], No. 30981/65. Heading H1D. [Also in Division G1] A step-down or inverted electron tube amplifier circuit comprises a vacuum tube including a cathode, a positively-biased grid electrode, and at least one other electrode further from the cathode than the grid. An input signal is connected between the cathode and the further electrode to vary the negative bias on the further electrode and so produce an output signal in an output circuit connected between the cathode and grid. A variable resistor is connected between the cathode filament and the grid so that the filament power can be reduced simultaneously with the increasing of grid bias to obtain an optimum combination of filament power and grid potential which occurs at about 50% of rated filament power. The internal resistance of the tube may be varied by varying the input to an incandescent lamp mounted adjacent the tube to cause the liberation of additional electrons by photo-emission. The tube may be a triode or a tetrode. In the latter case, the input is connected between the cathode and the second grid, the plate electrode being negatively biased. The circuit may be used in a megohm meter, Fig. 6 (not shown), the unknown resistance being connected in the input circuit and a current meter in the output circuit. A variable stepping resistance is connected to an incandescent lamp to control light incident on the electron tube and act as a range selector switch. As shown in Fig. 7, the circuit is used in a fire alarm system which is sensitive to the smoke content of the surrounding air. An open ionization chamber 35, comprising a cathode 37 carrying radioactive material 39 and ion collector 41, being connected in the input circuit, and the output circuit including a switch contact meter 46 which operates an alarm signal when smoke is detected, and also when the circuit fails. A thermistor 50 is connected in the circuit between the cathode and plate electrode of tetrode tube 20 to shift the quiescent operating point an amount just sufficient to cancel the effects of air currents. However, if adjustability is not required, thermistor 50 and lamp 10 may be omitted.