baber/WOPTO huggingface dataset:
Patent GB-473390-A (GB)
Title: Improvements in and relating to the control of electric discharge devices
IPC: H02H7/127
Filed: 1936-12-15
Abstract: 473,390. Converting. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEHEN. Dec. 15, 1936, Nos. 34464 and 34465. Convention dates, Dec. 18, 1935 and June 8, 1936. [Class 38 (ii)] Relates to the overload and back-ignition protection of a discharge device 1, Fig 1, operating as a rectifier and consists in the provision of a high-frequency oscillator 8, 9, the operation of which is responsive to current flow in the load circuit and which determines the application of control potentials to the discharge device 1. The grid of the oscillator valve 9 is biassed by the drop across a resistance 12 is the load circuit and is arranged such that the oscillator is normally inoperative, but when the load rises above a certain value becomes operative and negatively biasses, through a rectifier circuit 14, 15, 16, the grid of an auxiliary valve 13 which controls the application of control potentials from a transformer 6 to the grid of the valve 1 so that the valve 13 ceases to conduct and the discharge device 1 is blocked. In a modification of this, the output of the oscillator is supplied to a full wave rectifier and the circuit is arranged such that when the oscillator operates a negative bias is applied to the grid of the discharge device 1 as well as to the valve 13. In a further modification shown in Fig. 3, the oscillator 8, 9 is normally operative and supplies an overriding H F bias to the grid of the valve 13 to maintain this valve conductive. When overload occurs, the oscillator ceases to operate and the valve 13 is blocked by a 180‹ phase displaced voltage from the winding 24. In a modification of this, an excess voltage cut-out is connected in parallel with the resistance 12 through a source of potential, the source of potential being provided so that when the cut-out breaks down a negative bias is applied to the grid of the oscillator valve. The grid biassing of the oscillator is arranged so that when a change in operation occurs due to overload &c. the oscillator remains set in that condition. For back-ignition protection on a polyphase arrangement, the resistance 12 is replaced by a transformer with primaries connected in two or more of the phase windings of the supply transformer, the output from the secondary being rectified. A further relay may be provided which operates when overload or back ignition occurs to adjust a phase shifting transformer in the main grid circuit to a position in which the grid potentials are fully retarded. Means may be provided such that when the phase shifting transformer has reached the fully retarded position operation of the rectifier is restarted. A counting mechanism may be provided which limits the number of starts that can be made.
Patent GB-411473-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F19/02
Filed: 1932-12-06
Abstract: 411,473. Transformers. PYE RADIO, Ltd., Radio Works, and DALGLEISH, J. W., 27, Haig Road, both in Cambridge. Dec. 6, 1932, No. 34551. [Class 38 (ii).] A push-pull transformer comprises two parallelly connected primary windings arranged upon opposite arms of a magnetic core so as to produce additive fluxes in the core and two secondary windings each arranged over, or side by side with one of the primary windings and so wound that the ends of the secondary windings which are nearest to one another are of opposite phase and if necessary, may be connected together to decrease the self capacity of the windings. One primary and one secondary winding are disposed on each of the rectangularended bobbins 12 which are arranged on opposite arms of the high permeability nickel alloy core 11 provided with two channel-shaped clamps 13, and are enclosed on three sides by the strip 14 and on a fourth side by an insulating strip 16. Connection is made to the coils from soldering tags 18 which are secured to the strip 14 or to the ends of the bobbins 12. The Provisional Specification describes also a transformer adapted to supply one valve grid only and having the outside of one secondary connected to the inside of the other.
Patent GB-1200944-A (GB)
Title: Polymeric products and their use
IPC: C08G73/20
Filed: 1967-07-27
Abstract: 1,200,944. Laminates. MONSANTO GO. 27 July, 1967 [27 July, 1966], No. 34621/67. Heading B5N. [Also in Divisions B2 and C3] Curable polymers are produced by contacting (a) an ester obtained by heating (i) a C 10-24  aromatic tetracarboxylic dianhydride having the anhydride groups separated by at least one carbon, or the corresponding acid or C 1-8  alkyl or aryl ester, with (ii) a C 2-6  alkylene glycol or C 1-8  monether thereof, with (b) a C 6-20  aromatic tetramine having two pairs of adjacent NH 2  groups separated by at least one carbon and free from olefinic or acetylenic unsaturation or interfering substituents. They may be cured at 100 to 525 C. to polymers containing repeat units such as The reaction between (a) and (b) may be effected without isolating (a). Numerous suitable reactants are specified; in examples (i) is 3,3<SP>1</SP>,4,4<SP>1</SP> - benzophenonetetracarboxylic dianhydride; 1,2,4,5 - benzene tetracarboxylic dianhydride or 1,4,5,8 - naphthalene tetracarboxylic acid, (ii) is ethylene glycol or 2 - methoxyethanol and (b) is 3,3<SP>1</SP>,4,4<SP>1</SP>- biphenyl tetramine. Suspensions or solutions of the curable polymer, optionally containing pigments e.g. TiO 2 , ZnO, SiO 2 , Al 2 O 3  or iron oxide, may be coated on a substrate, e.g. metallic, ceramic or cellulosic, and cured by heating after evaporation of the solvent or diluent. The dried curable polymer may be used as moulding powders while the solution, suspension or dried powder may be used as an adhesive e.g. for laminating glass, silica or boron filaments or textiles, metal, glass or plastics. In examples glass cloth impregnated with the polymer solution is dried at 50 C. under vacuum and laminated at 120 p.s.i. at 149 C. for 30 minutes then 274 C. for 30 minutes.
Patent GB-774976-A (GB)
Title: Improvements in or relating to machine tools
IPC: B24B7/07
Filed: 1953-09-15
Abstract: 774,976. Grinding. MID-WEST ABRASIVE CO. Sept. 15, 1953 [March 30, 1953], No. 34647/55. Divided out of 774,975. Drawings to Specification. Class 60 A grinding machine comprises an elongated boom mounted on a support and extending laterally outwardly therefrom, a grinding wheel mounted on the boom in a position spaced along the boom from the support, power means for oscillating the tool in opposite directions about the longitudinal axis of the boom and a selector control which in one positions sets the power means into continuous operation and in another position places the power means tinder a manual control. The invention is described as applied to a machine identical with that described in Specifications 774,975 and 774,977, the boom itself being oscillatable about its longitudinal' axis and the selector control provding for either continuous oscillation of the boom and grinding wheel or oscillation as determined by the manual control.
Patent GB-947383-A (GB)
Title: Improvements in rotary displacement machines of the screw rotor type
IPC: F04C27/02
Filed: 1960-01-15
Abstract: 947,383. Intermeshing screw pumps and motors. SVENSKA ROTOR MASKINER A.B. Jan. 15, 1960 [Jan. 15, 1959], No. 34707/60. Dividend out of 947,382. Heading F1F. A rotary motor or compressor of the intermeshing screw type is provided with injection nozzles 64 located on the high-pressure side of the intersecting bores of the machine and in two parallel rows disposed on each side of the line of intersection 50 of the intersecting bores. Additional injection nozzles may be disposed in the end wall of the casing, see Figs. 1, 3 and 4 (not shown). Liquid having cooling, scaling or lubricating properties is fed through the nozzles as desired. Specification 832,386 is referred to.
Patent GB-815456-A (GB)
Title: Bicycle fork lock
IPC: B62H5/06
Filed: 1957-11-08
Abstract: 815,456. Cycle locking devices. ALCARESE, S. Nov. 8, 1957 [Sept. 6, 1957], No. 34875/57. Class 79(3) A bicycle fork lock comprises a locking mechanism 24 on a frame member 10 for projecting a locking pin 32 through an aperture 30, in which it is non-rotatable, into engagement with a locking plate 50 fixed to the fork so as to turn with the latter and wherein the locking of the fork relatively to the frame in any desired angular position is effected through selective engagement by the pin of a series of adjacent teeth 60 on the plate 50, for which purpose the pin has an end slot 36 whereby it can engage and straddle any one of the teeth and also engage between the teeth on . either side of the tooth thus straddled. When it is 'desired to lock the front wheel fork, the steering column 14 is rotated to the desired position and a key 26 actuated to lower the locking pin 32 with the slot 36 receiving one of the teeth 60. To unlock the front fork the key 26 is turned to raise the pin 32.
Patent GB-771530-A (GB)
Title: Latch bolt
Inventor: RAPER RICHARD
IPC: E05B15/10
Filed: 1954-08-21
Abstract: 771,530. Latch bolts. WHEELING STEEL CORPORATION. Aug. 21, 1954, No. 34938/55. Divided out of 771,528. Class 44. A latch bolt 21 comprises a body 22 and latching portions 23, 24 connected to the body 22 and projecting therefrom in opposite directions, the latching portions 23, 24 having respectively cam surfaces 25, 26 for camming back the bolt prior to operative projection thereof, one of the cam surfaces being disposed substantially in a vertical plane, the other cam surface being disposed substantially in a non- vertical plane. As shown, the bolt is mounted in a casing for sliding movement when used on a swinging door and is mounted for swinging movement about a pivot pin located in a hole 59 when used on a sliding door. The bolt is located on its casing by sets of projecting pins 31, 32, 36, 37 and 31, 33, 34, 35. Specifications 771,527 and 771,529 are referred to.
Patent GB-982913-A (GB)
Title: Process for dyeing and printing with reactive dyestuffs
IPC: C09B62/00
Filed: 1962-09-13
Abstract: In the dyeing or printing of fibrous materials with reactive dyestuffs or reactive dyestuff intermediates the reaction between dye and the substrate is effected in the presence of a hydrazine containing at least one tertiary N atom, i.e. one of the two N atoms of the hydrazine must be bound to two C atoms, or a water-soluble salt thereof.  The hydrazines may contain substituents that do not react with the reactive dyestuffs, e.g. halogen atoms, nitro, hydroxy or alkoxy groups but preferably contain only non-aromatic hydrocarbon substituents.  The following hydrazines are specified: N : N-dimethylhydrazine, N : N : N1-triethylhydrazine and hydrazines and hydrazine salts of the formula  <FORM:0982913/D1-D2/1> A combination of two or more hydrazines or their salts formed with sulphuric, hydrochloric, phosphoric, acetic, formic, propionic, chloracetic, oxalic or tartaric acid may be used.  A large number of types of reactive dye are listed which may be from the oxazine, triphenyl-methane, xanthene, nitro, acridone, azo, anthraquinone and phthalocyamine series; they are preferably water-soluble. Vat dyestuffs of the water-soluble or insoluble type in their oxidised form as well as azo dyestuff intermediates containing reactine groups may also be used.  The proportion of hydrazine compound used may vary from 1 mol of the hydrazine for each reactive group down to only catalytic proportions e.g. 0.2-2% by weight of the dyestuff.  The hydrazine may be applied to the fibrous material before, after or together with the dyestuff or the dyestuff and the hydrazine may be reacted together and the resulting reaction product may then be applied.  In other respects conditions conventionally employed in the application of reactive dyestuffs are used.  To prevent unwanted reduction phenomena m-nitrobenzene-sulphonic acid may be used as an additive. Fixation may be achieved throughout a large range of temperatures and techniques including heating or steaming from 20-200 DEG C. dry heating at 250-300 DEG C. or exposing to the action of a high-frequency electric field.  The following materials may be dyed or printed: paper, leather, silk, linen, cotton and regenerated cellulose.  Many examples are given.
Patent GB-936545-A (GB)
Title: Air blast electric circuit breaker
IPC: H01H3/60
Filed: 1961-09-29
Abstract: 936,545. Air-blast switches. ALLMANNA SVENSKA ELEKTRISKA A.B. Sept. 29, 1961 [Dec. 15, 1960], No. 35090/61. Class 38 (5). An air-blast circuit-breaker having a contact chamber permanently filled with compressed air and a piston-driven nozzle moving contact has a throttled connection between the low pressure side of the piston and the contact chamber to control the contact movement. As shown, the nozzle movable contact 4 is connected to a piston 6, one side of which defines a space 8 connectable to the atmosphere or to the compressed air system. The space 7 above the piston is connected by a throttle 17 and a bypass non-return valve 18 with the compressed air container 1. When compressed air is supplied to the space 8 to equalize the pressures on the piston 6, the pressure difference at the contact 4, 11 overcomes the closing bias of a spring 12 to open the contacts and a valve 21 allows air to pass from the space 7 during initial piston movement. After the piston has passed the valve 21, the pressure in space 7 increases to check the contact movement which is completed as the pressure is equalized through the throttle 17. In Fig. 1 (not shown), the valve 21 is omitted and the throttle is part of the valve 18.
Patent GB-282798-A (GB)
Title: Improvements relating to the cylinders of double-acting two-stroke cycle internal combustion engines
IPC: F02B75/02
Filed: 1927-12-28
Abstract: 282,798. Allgemeine Elektricitõts- Ges. Dec. 29, 1926, [Convention date]. Frames; cylinders, parts constructed to facilitate expansion of, liners heads for, passages of, mounting and cooling.-The frame of a cylinder block of a two-stroke-cycle engine is divided longitudinally into two parts a, b, clamped together by bolts c and ernbraces two-part liners k, and each part has central recesses and projections q on which rest centre parts e containing scavenging and exhaust passages g, f. Heavy flanges on the liners are fixed by rings m and long bolts n, sliding joints, constituted bv stuffing boxes s and piston rings r, being provided. Water jackets comprise parts h, i, which have a sliding joint between them and are fixed to the flanges of the liners and the parts e. The heads o are bolted to the flanges of the liners. To reduce the shear stress in the bolts c wedges are seated in recesses formed in the contacting faces of the parts a, b.
Patent GB-1062153-A (GB)
Title: Improvements in fluid pressure control valves
Inventor: MUSSI LEO MARIO
IPC: F15B5/00
Filed: 1962-09-14
Abstract: 1,062,153. Fluid-pressure servomotor systems. JAMES GORDON & CO. Ltd. Sept. 11, 1963 [Sept. 14, 1962], No. 35215/62. Heading G3P. A fluid-pressure control-valve has an input member 24 with a cam follower 25, which member is moved in response to variations in fluid flow, pressure, temperature, voltage, or like physical characteristics to unseat an inlet valve 11 and admit pressure from an inlet 4 to a chamber 8 having an outlet 9. The chamber 8 is defined by a diaphragm 16 supporting a seat 17 for an exhaust valve 12 on the same rod 10 as the inlet valve 11; the diaphragm 16 is loaded in opposition to the fluid present in chamber 8 by a spring 18, the other end of which abuts the member 24. The latter is part of a loose-fitting differential-piston 3 guided and supported by further diaphragms 20, 22, the space between which is open to the chamber 8 so that the resulting upward force augments that applied to the member 24 and provides a positive feedback. The chamber 8 is exhausted to atmosphere when the member 24 is retracted so withdrawing the seat 17 from the valve 12; the exhaust ceases when the member 24 comes to rest.
Patent GB-465836-A (GB)
Title: Improvements in or relating to cans or like containers
Filed: 1935-12-19
Abstract: 465,836. Seamed joints. CONTINENTAL CAN CO., Inc. Dec, 19, 1935, No. 35258. Convention date, May 3. [Class 83 (iv)] Slits or slots 8 are formed in an edge 6 of a blank 1 to be formed into a can body with the edges 3, 6 interlocked and seamed, the slits or slots, which extend to the edge of the metal, permitting the escape of gases generated during the soldering operation, and the free flow of solder.
Patent GB-1240826-A (GB)
Title: Packaging method
Inventor: FORD ANDREW GEORGE
IPC: B65B9/13
Filed: 1967-08-01
Abstract: 1,240,826. Filling bags. IMPERIAL CHEMICAL INDUSTRIES Ltd. 8 July, 1968 [1 Aug., 1967], No. 35334/67. Heading B8C. A method of packaging solid or liquid material in a pressurized, plastics film container comprises bringing the major part of the container to substantially its fully inflated state before filling by the application of differential pressures to the inner and outer surfaces of the container walls, and maintaining it in such an inflated state during filling and sealing. A flat tube 1, Fig. 1, of plastics film passes between nip rollers 3 and is opened by a former 4 resting within the tube upon the rollers 3 and held in a vertical position by rollers 5. A mandrel 6, having an inflatable ring 7, is lowered into the tube, a vacuum being applied to the ring to allow clearance. The vacuum is then released, causing the ring to grip the film internally at 2. The mandrel is raised and the elevated tube section severed to form a container blank. The mandrel first moves the blank to a station where the lower end of the blank is turned back on itself, branched, and heat sealed, and then to a station where a ligature 11, Fig. 5 (not shown), is applied above the enlarged end of the seal. The mandrel is inserted in a mould 12 which is slightly smaller than the container when inflated at the working pressure. Carbon dioxide at this pressure is applied through the top of the mandrel, and a vacuum to the walls of the mould, thus inflating the container into contact with the mould. Chilled carbonated drink is transferred through the top of the mandrel into the container, the carbon dioxide being displaced back to the top of the drink reservoir. After filling, the pressure in the ring 7 is released and the mandrel is withdrawn. The mould, with the vacuum maintained, is moved to a station where the top of the film is turned over, bunched, and heat sealed, and then to a station where a ligature is applied as before. The container may be enclosed in a carton, or provided with a free-standing support. The mould 12 consists of a porous metal pot, a wire mesh within an evacuable container, or is channelled to distribute the vacuum. The inflatable ring 7 may be replaced by external clamps bearing upon a soft rubber ring on the mandrel.
Patent GB-955009-A (GB)
Title: Improvements in or relating to the manufacture of photographic colour images
IPC: C07D333/34
Filed: 1961-10-02
Abstract: Certain acylated 2,5-aminophenols of formula: <FORM:0955009/C2/1> wherein one of the symbols X and Y represents -SO2R and the other -COR, are prepared by reacting 2-amino-5-nitrophenol with the appropriate sulphonyl or acyl chloride, reducing the nitro group to an amino group and reacting this amino group with the appropriate carbonyl or sulphonyl chloride to yield 2-palmitoylamino-5-thienylsulphonylaminophenol, 2-palmitoylamino -5- p-toluenesulphonylaminophenol, 2-p-toluenesulphonylamino -5- (1-hexadec -2- enyl) succinoyl-aminophenol, 2-methylsulphonylamino -5- lauroylamino-phenol and 2-thienylsulphonylamino -5- lauroylamino-phenol. Specifications 797,141 and 906,908 are referred to.
Patent GB-897415-A (GB)
Title: Improvements in or relating to bladed rotors
Inventor: BEALE RICHARD DERBY
IPC: F01D5/30
Filed: 1959-10-20
Abstract: 897,415. Turbine and compressor rotors. ROLLS-ROYCE Ltd. Oct. 14, 1960 [Oct. 20, 1959], No. 35598/59. Class 110 (3). A bladed rotor for a turbine or compressor comprises a pair of end-plates 10, 10a, mounted on and drivingly connected to shafting 35, 36, a series of alternately arranged spacer rings 15 and blade-carrying discs 11 out of direct engagement with the shafting and individual securing means for securing the blade-carrying discs 11 to adjacent spacer rings or ring and end-plate. Each disc 11 has alternate pivotallymounted blades 25, 26. Bolts 18 pass through hollow pins 20 mounted in webs 13, 14 and the head of each bolt 18 is provided with a flat. The length of the pins 20 is such as to prevent nipping of the webs 13, 14 as the nuts 19 are tightened. Part of the blade roots extend between the webs 13, 14 to receive sleeves 28 so that the bolts 18 and the pins 20 constitute pivots for the blades 25. Blades 26 are similar, but root portions 29 receive hollow pins 30 which are substantially the same length as the thickness of the portion 12 of the discs 11 to allow rolling of the blades. The blades 25, 26 have root platforms 32 aligned with the outer circumference of the spacer rings 15 to provide a rotor having a cylindrical surface.
Patent GB-891608-A (GB)
Title: Improvements in swifts employed in the drawing of wire, tubing and other elongated material
Inventor: RICHARDS SAMUEL HUGH
IPC: B21C1/14
Filed: 1959-10-21
Abstract: 891,608. Drawing. MARSHALL RICHARDS MACHINE CO. Ltd. Oct. 20, 1960 [Oct. 21, 1959], No. 35641/59. Class 83 (4). A rotatable swift comprises a frame 1, means for rotating the frame and a plurality of rollers 12, 14, mounted on the frame and adapted to give vertical and transverse support to a coil of wire 26 in a position surrounding the axis of rotation of the frame. The frame 1 comprises a drum 2 mounted on bearings 7 and driven by a shaft 3 through a free wheel 6. The driving means comprises a belt 11, a reduction gear 10 and an electric motor 9 supplied by a generator (not shown) driven by the shaft of the driving block so that the speed of the swift is determined by the speed of the wire. Eight rollers 12 are mounted in the wall of drum and eight rollers 14 are mounted radially in a flange 13 formed at the lower end of the drum. The swift is mounted on a carriage 4, supported by parallel stanchions 15 and 16, which is raised and lowered by an hydraulic unit comprising a cylinder 20 fixed to the carriage and a piston-rod 19 attached to the stanchion 15. Each stanchion comprises a rail section 17 and a rack 18, and across the carriage runs a shaft 24 bearing pinions 22 and 23 which engage the racks and keep the carriage level. The carriage also supports a guard plate 25 to restrain the end of the wire as it leaves the swift. The swift may be made of light alloy or timber and the rollers 12 and 14 are preferably steel. The two sets of rollers may be replaced by a single set of flanged rollers mounted with their axes either parallel or at right-angles to the axis of the swift.