baber/WOPTO huggingface dataset:
Patent GB-760420-A (GB)
Title: Composition of phenol-formaldehyde resin and epoxy resin for bonding abrasive granules
IPC: C08L63/02
Filed: 1954-03-12
Abstract: A heat-hardenable resinous binder for bonding abrasive granules comprises a mixture containing 54-99 per cent by weight of a heat-hardenable monohydric phenol-formaldehyde resin and 1-46 per cent of a polyglycidyl ether of a phenol-acetone or phenol-formaldehyde condensat.  The ratio of hydroxyl groups in the phenol-formaldehyde condensate to epoxy groups in the polyglycidyl ether must be 3-80 to 1.  When making grinding wheels a solid novolak resin is used and the abrasive grains are first coated with a wetting agent, e.g. furfural, a mixture of furfural and cresol or a phenol-formaldehyde resin; some epoxy resin may be used in the wetting agent.  When making abrasive paper or cloth an alkaline condensed phenol-formaldehyde resin is used.  In examples: (1) alumina abrasive grains were wetted by mixing them with an alkaline condensed phenol-formaldehyde resin. The grains were then mixed with a mixture of (a) cryolite; (b) an acid-condensed phenol-formaldehyde resin containing hexamethylene tetramine; and (c) an epoxy resin derived by reacting epichlorhydrin with the bis-phenol derived from phenol and formaldehyde and heating the reaction product with the bis-phenol and benzyl dimethyl amine.  Abrasive bars were moulded from this mixture; (2) similar to Example (1) except that the epoxy resin is derived by reacting diphenylol propane with epichlorhydrin and heating the product with diphenylol propane and sodium hydroxide; (3) similar to Example (2) except that the abrasive grains are wetted with a mixture of an alkaline-condensed phenol-formaldehyde resin and the diglycidyl ether of the bis-phenol derived from phenol and formaldehyde; (4) a mixture is made comprising (a) a phenol-formaldehyde resin; (b) a diglycidyl ether of the bis-phenol derived by condensing phenol and formaldehyde; (c) a hardener for the diglycidyl ether which is the diethylene triamine adduct of the diglycidyl ether.  The resin mixture, rendered more fluid if desired by furfural, the monoethyl ether of ethylene glycol or ethanol is then coated on paper and abrasive grains are applied.
Patent GB-215151-A (GB)
Title: Improvements in wireless aerials
IPC: H01Q1/12
Filed: 1923-03-14
Abstract: 215,151. Hynes, E. W. March 14, 1923. Aerials.-An aerial is constructed of one or more lengths of wire carried by two or more supports, each of which comprises a rod B projecting from a sucker or vacuum cup A and provided with means, such as a hole C and screw D, for holding the wire.
Patent GB-563463-A (GB)
Title: Improvements in or relating to high frequency electrical apparatus
IPC: H03B5/10
Filed: 1940-04-25
Abstract: 563,463. Electric resonators ; wireless transmitting apparatus. PERCIVAL, W. S. April 25, 1940, Nos. 7454/40 and 4487/41. [Classes 40 (iii) and 40 (v)] A short-wave oscillatory circuit comprises a rigid support having a conducting surface which constitutes the main inductance of the circuit and serves as a support for the condenser which is connected or coupled to spaced points in the surface. In the embodiment shown in Figs. 1 and 3 of Provisional Specification 7454/40, -the plate 4 furnishing the required inductance is made of copper or silver-plated brass and is slotted at 6 and cut away at 5, so as to function as a single turn; but for the shortest wave-lengths the gap 5 and even the slot 6 may be omitted. A variable condenser 7 is mounted on the plate, the stator, Fig. 2 (not shown), being mounted in holes 9 and electrically connected to the upper portion of the plate, while the shaft of the rotor passes through the hole 8 and is electrically connected to the lower portion of the plate, no insulating bushes being needed. Supply leads for the anode and heater are screened by being embedded respectively in grooves 12 and 11 in the plate 4, the anode and grid being connected to the plate 4 above and below the slot 6 respectively, while the cathode is connected at an intermediate point. The return lead for the heater is connected to the cathode lead through a loop 17, which neutralizes the pickup of the heater circuits. Damping resistances 18, 19, with decoupling condensers 21, 22, are inserted in the supply circuits to the grid and anode to prevent resonance at some harmonic frequency. The device as a whole is mounted on a copper sheet inside a copper shield. In the embodiment shown in Figs. 1 and 3 of Provisional Specification 4487/41, the plate P forming the inductance has a slot T and is coupled to the rotor and stator of a variable condenser C through condensers formed by plates C<1>, C2 insulated by a mica sheet M, the rotor bearing D being supported by a bridge B. The valve is supported, without a holder, by short leads connecting the grid to the rotor and the anode to the stator, and by chokes L, Fig. 1, soldered to the plate P ; the direct connections between valve and condenser give an extended wave-range. The anode-decoupling resistance R<1> and grid-leak resistance R<2> are mounted on the plate P at points remote from the condenser and valve.
Patent GB-824159-A (GB)
Title: Process of and apparatus for low-temperature separation of air
IPC: F25J5/00
Filed: 1958-03-07
Abstract: 824,159. Cold separation of air. UNION CARBIDE CORPORATION. March 7, 1958 [March 22, 1957], No. 7460/58. Class 8(2). In a rectification process wherein air having a compressor 10 at less than 150 p.s.i. is cooled, and freed of readily condensible impurities in heat exchanger with returning nitrogen e.g. in alternating exchangers 12 and in a scrubber 20, part of the so cleaned air in a duct 22 is warmed in heat exchangers 23, 28 recompressed to above 2000 p.s.i. in a compressor 31 and is then divided into a first portion which is cooled in passage 25 of exchanger 23 and expanded at a valve 34 to less than 150 p.s.i. after which it is joined by the remaining high pressure air after being cooled by an external refrigerant e.g. ammonia in an exchanger 35 and expanded with external work at 40 to below 150 p.s.i. ; the so combined air streams then passing to a conventional double column 51, 53. Liquid and gaseous oxygen products are drawn from the low pressure column 51 through valved ducts 65, 87 respectively and crude liquid nitrogen is drawn from the high pressure column 53 through a valved duct 89. To provide the necessary flow unbalance for regenerators 12 a minor portion of the low pressure air by-passes the regenerators and is further compressed at 69 to 2000 p.s.i. cooled in exchanger passage 29 and in an ammonia refrigerator 73 and added to the cold high pressure air leaving the exchanger 35. In a modification the scrubber is replaced by an adsorption trap and the whole of the incoming air is cooled in an indirect countercurrent heat exchanger having a non- reversing passage traversed by a portion of the cold air leaving the absorption trap.
Patent GB-909986-A (GB)
Title: Metal forming
IPC: B21D53/04
Filed: 1961-03-01
Abstract: 909,986. Stamping; tube expanders. OLIN MATHIESON CHEMICAL CORPORATION. March 1, 1961 [March 17, 1960], No. 7498/61. Class 83 (4). A method of mechanically distending a tubular passageway of a metal tube sheet formed by selectively welding superimposed metal sheets 2, 3, e.g. of aluminium, having different elastic limits to define a pattern of unjoined portions 5 which are to be expanded to form tubular passageways is characterized by inserting between said unjoined portions a mandrel having a first bearing surface 14 opposite the unjoined portion of the sheet having the lower elastic limit and an oppositely disposed second bearing surface 13 opposite the unjoined portion of the sheet having the higher elastic limit wherein the ratio of the area of the bearing surfaces is equal to the inverse ratio of the said elastic limits times the ratio of the amount of distention desired in each unjoined portion times the ratio of the thicknesses of the unjoined portions. The mandrel has a point 15 to initiate the separation of the unjoined portion after which the mandrel is manually or otherwise forced into the passageway 9, as shown in Fig. 5. In another embodiment for sizing a partially or fully-formed tubular passageway 18, Figs. 6 and 7, a sizing tool 22 having working portions 23, 24 and 25 is used. In a further embodiment for expanding and sizing a passageway 33 provided with a restriction 32 a tool 34 having working portions 35 and 36, Figs. 11 and 12, is used to expand the passageway and the restriction. Specifications 759,804 and 796,229 are referred to.
Patent GB-924881-A (GB)
Title: Heat treatment of metals
Inventor: JOHNSON LEONARD TERENCE
IPC: C22B5/04
Filed: 1961-03-01
Abstract: A process for the stress relief of welds in steel pipes of such diameter and wall thickness that the pipes have a weight of not more than 30 lbs. per foot run comprises applying to the region of the weld a composition comprising an exothermic mixture and a refractory filler, the composition when burned in free oxygen generating 300-1000 B.T.Us. per lb. and being used in such quantity to raise the temperature of the weld at least to the critical temperature, firing the composition and allowing it to cool in situ.  A refractory sleeve may be provided between the pipe and the composition.  Specification 924,882 is referred to.
Patent GB-255370-A (GB)
Title: Improvements in devices for cleaning tubes
IPC: B08B9/04
Filed: 1926-03-18
Abstract: 255,370. Brendlin, A. March 18, 1926. Cleaning internally, non-rotary appliances for. - A device for cleaning condenser and other tubes comprises helical springs a the ends of which are held in nuts b, b<1> Figs. 1 and 2, mounted so as to be revolvable on a screw spindle f, the direction of the thread being such that increased resistance to the cleaning action brings the nuts b, b<1> nearer together and decreases the diameter of the springs. The position of the nut b is determined by stop nuts h, f<2> covered by a clip o, the nut f<2> carrying a rotatable length f<1> of the screw spindle f so that by rotating this length the nut b is moved to the desired position. Flushing water can be supplied through a tubular handle k.
Patent GB-345795-A (GB)
Title: A new or improved device for closing doors, gates, and the like
IPC: E05F1/10
Filed: 1930-03-08
Abstract: 345,795. Door closing springs and checks. BLACKMORE, J. H., 117, George Road, Erdington, and BLACKMORE, F. A., 343, Victoria Road, Aston, both in Birming. ham. March 8, 1930, No. 7576. [Class 65 (i).] A wire coil spring a<1>, Fig. 2, has one end a<3> clamped to a bracket b on the door post, and the other end a<4> extends across the door to engage slidably with a fitting c on the door. The part a3 of the wire may be continued round the bolt to form another coil spring and arm exactly similar to a<1>, a4. In a modification, the part a<3> of the wire lies against the door post and is clamped to it by a plate. In a further modification, the end of the arm a4, Fig. 8, is pivoted to a link e pivoted to the door. The initial strain in the spring may be varied in the constructions shown in Figs. 2 and 8 by adjusting the bolt b2 in a slot in the bracket b ; it may be so arranged that the spring is unstrained when the door is slightly open, so that the final closing of the door is checked. The parts on the door and the door post may be interchanged.
Patent GB-626159-A (GB)
Title: Blending nozzle
IPC: B05B7/16
Filed: 1947-03-19
Abstract: 626,159. Spray producers. TRIGGS, W. W. (Homestead Valve Manufacturing Co.). March 19, 1947, No. 7609. [Class 69 (iii)] A method of producing a spray having a core of liquid slugs, for greater erosive effect in cleaning surfaces at a distance from the nozzle, consists in discharging a spray mixture of a liquid and the vapour of a liquid (e.g. steam and water) into the centre of a liquid stream and subsequently discharging both together. A mixture of a liquid and the vapour of a liquid is conveyed by a pipe 15 to an outwardly flared nozzle 10 from which it is projected into the centre of a stream of liquid conveyed by a pipe 8 into the annular space 12. The spray having a core of liquid slugs is then discharged from. the outer nozzle 1. Specification 626,158, which describes a similar nozzle, but without the water pipe 8, is referred to.
Patent GB-454908-A (GB)
Title: Electric iron
IPC: D06F75/24
Filed: 1936-03-13
Abstract: 454,908. Electric irons. GROSSMAN, A., 20, Feodorastrasse, Gera, Th³ringia, Germany. March 13, 1936, No. 7613. [Class 39 (iii)] The cover a is heat-insulated from the heat storage mass g by an evacuated glass cover d the inner surfaces of which may be silvered. Heat insulation c is arranged between the cover and the sole-plate. The cover may be made of metal, celluloid, porcelain or wood.
Patent GB-196161-A (GB)
Title: Improvements in or relating to hot water or steam boilers
IPC: F24H1/32
Filed: 1922-03-15
Abstract: 196,161. Defays, V. J. J. March 15, 1922. Section boilers.-Relates to end - fed sectional boilers wherein the sections 1 have a central grate portion and a water space which entirely surrounds the grate portion without interruption so that water can circulate entirely round the fire, the lower branch 7 of the water space forming the support for the fire-bars and the sections being constructed so that flues 10 are formed between them, and consists in the provision of side grates 11 in communication with the flues 10, the said flues communicating at their upper ends with a smoke collector 12. The sections form at their upper parts a pipe 14 which serves as a steam or hot water collector. The end sections are provided at their lower parts with return connections which communicate with the other sections by connections 17 in the case of hot water boilers. In a modification, the sections are shaped to form double side flues, the outer flues being connected at their lower ends to smoke collectors. The upper smoke collectors is utilized in this case for starting up.
Patent GB-1335499-A (GB)
Title: Process for the preparation of trans-n-2-hydroxy-ethyl-2-aminomethy 3-methylnorbornene n-acyl derivatives
IPC: C07C231/02
Filed: 1972-02-18
Abstract: 1335499 N-benzoyl-N-(2-hydroxyethyl)-2- aminomethyl - 3 - methylnorbornanes SIR LABORATORI CHIMICO-BIOLOGICI SpA 18 Feb 1972 [13 Aug 1971] 7630/72 Heading C2C Trans-compounds of the formula wherein "ACYL" is PhCO optionally containing 1 or 2 of NO 2 , MeO and Cl, are prepared by reacting trans - N - (2 - hydroxyethyl) - 2 - aminomethyl - 3 - methylnorbornane (which has been obtained by catalytic hydrogenation of a mixture of trans-2-formyl-3-methylnorborn-5- ene and ethanolamine) with the acyl chloride in an inert solvent and in presence of an acid acceptor. In examples, the mixture is kept for 30 minutes prior to hydrogenation, so that presumably the N - (2 - hydroxyethyl)-3-methylnorborn-5-en-2-ylmethyleneimide is present.
Patent GB-230637-A (GB)
Title: Process for the vulcanisation of caoutchouc
IPC: C08K3/32
Filed: 1924-03-26
Abstract: 230,637. Peachey, S. J., and Skipsey, A. March 26, 1924. Vulcanizing-compositions; vulcanizing by cold methods. - Rubber is vulcanized by treatment with a sulphide or mixture of sulphides of phosphorus. The rubber may be in solid, dissolved or emulsified form, and the sulphide, may be added as a solid or dissolved in a solvent such as carbon disulphid.e, or benzene. In mixing solid rubber with the sulphide, the rolls should be kept cool and/or a small quantity of rubber solvent should be added to minimize risk of pre. vulcanization. According to an example a former coated by dipping is immersed for three minutes in a concentrated solution of phosphorus tri or penta sulphide, removed, dried, and stripped. Other examples are given of vulcanizing solutions, proofed fabrics, and solid rubber.
Patent GB-434184-A (GB)
Title: Improvements in boiler economizers and like tubular fluid heaters
IPC: F22D1/06
Filed: 1935-03-12
Abstract: 434,184. Heating feedwater. SUPERHEATER CO., 60, East 42nd Street, New York, U.S.A.-(Assignees of Sengstaken, J. H.; Valley Road, Plandome, Long Island, New York, U.S.A.) March 12, 1935, No. 7733. Convention date, May 15, 1934. [Classes 64 (i) and 64 (iii)] A unit of an economizer or like tubular fluid heater consisting of serpentine tubes, arranged side by side and connected to upper and lower headers 18, 16, Fig. 1, 2, is built up of portions having two or more tube lengths 21 connected in parallel to end pieces 21<a> each having a flow area less than that of the tube lengths, and the end pieces of adjacent partions are connected by removable bends 26. In portions having three tube lengths, one tube of each portion is arranged between and above or below the other two and adjacent units are so arranged that the tubes are spaced equally in each horizontal row. The end pieces and return bends are secured together by threebolt flanges. The walls of the end-pieces may be somewhat thicker than the walls of the tube lengths. The tubes are supported at the side walls 10<a>, and the intermediate wall 10<b> in triangular spacing plates. In portions having two tube lengths, these are arranged in a horizontal plane and are staggered with relation to the lengths above and below, and at the intermediate wall the tubes are spaced by rhomboid-shaped plates 37, Fig. 5.
Patent GB-477026-A (GB)
Title: Improvements in catalyzers and methods of preparing and using them
IPC: B01J21/02
Filed: 1936-03-16
Abstract: A catalytic agent comprises a granular, dehydrated, platinized carrier of silica gel or meerschaum or both, to which a promoter has been applied as the final stage of manufacture.  Meerschaum is dehydrated by heating to 700--1000 DEG  C. before impregnation with the platinum salt; silica gel may be dehydrated either before or after impregnation with the platinum.  Additional carriers such as kieselguhr and cellite may be present.  The platinum may contain up to 10 per cent of rhodium.  After impregnation, the platinum is converted into the metallic form, e.g. in the case of platinum chloride by heating to 450--600 DEG  C. which also completes if necessary the dehydration of the carrier.  The platinized carrier is then treated with the promoter in the form of finely divided oxide or a suspension thereof or a salt solution.  As promoters may be used oxides of metals of Groups 4 to 8, e.g. of iron, chromium, vanadium, arsenic, or sulphates of metals of Groups 1 to 3, e.g. magnesium sulphate, or mixtures of these substances.  The catalysts are useful for the production of sulphur trioxide.  Reference has been directed by the Comptroller to Specification 396,712.
Patent GB-1236532-A (GB)
Title: Improvements in wing mirror assemblies for motor vehicles
Inventor: WHALLEY FREDERICK
IPC: B60R1/078
Filed: 1969-02-13
Abstract: 1,236,532. Vehicle driving mirrors. CAR-AVAN FITTINGS Ltd. 12 Feb., 1970 [13 Feb., 1969], No. 7809/69. Heading B7J. A wing mirror assembly for a vehicle comprises a mirror not shown slidably mounted on a pillar B which in use is substantially vertical, one end of the pillar being secured to a plate b which has means mounted thereon to attach the plate to a vehicle bumper and between the mirror and the plate b a rod or bar b<SP>2</SP> carrying a plate b<SP>4</SP> at one end is slidably mounted at the other end on the pillar B, the plate having two buffers b<SP>3</SP> which engage the vehicle wing. The said means comprises a U-shaped member d, Fig. 2, one leg of which is welded to a tubular sleeve d<SP>4</SP>, surrounding a bolt d<SP>1</SP> whose ends pass through and are secured to two lugs d<SP>2</SP> of a bracket, the latter being bolted by the agency of wing nuts to the plate. The sleeve is held in position by a locking washer d<SP>3</SP> having projections thereon to engage one end of the sleeve. The U-member engages the edge of a bumper bar and is secured thereto by bolts d<SP>12</SP>. Vertical adjustment of the plate and engagement of the buffers with the wing causes the inclination of the pillar to the vertical to vary. In an alternative embodiment the said means comprises a U-shaped bracket C, Fig. 4, secured to the plate b by wing nuts b<SP>1</SP> and carrying another plate c which is adjustable by nuts c<SP>2</SP> and secures the bracket to the vehicle bumper support.
Patent GB-772752-A (GB)
Title: Improvements in or relating to ring support systems for shafts
IPC: E21D7/00
Filed: 1952-03-28
Abstract: 772,752. Struts for ring supports in shafts. HOFFMANN, W., and HOFFMANN, H. [trading as HOFFMANN, A. [Firm of.] ]. March 28, 1952 [Jan. 26, 1952], No. 7962/52. Class 85. An arrangement for the connection of cross - members c to the shaft rings a in a ring support system tor a shaft is characterizedin thatsaid cross-members c are secured to brackets d in turn secured to the segments of the rings and have a limited adjustability of position with respect to the brackets. The cross-members may extend completely or partially along the chords of the rings and are secured in alignment with or perpendicular to the axes of the brackets respectively. The cross-members have secured thereto by weld or bolts shoe units m that can move along the brackets and when in the desired position are bolted thereto. Ample clearance is allowed between the shoes and the brackets. Slots p', p" at right angles to each other are formed in each associated shoe and bracket respectively and a securing bolt passes through said slots.
Patent GB-415171-A (GB)
Title: Improvements in moulding apparatus for pneumatic tyres and other articles
IPC: B29D30/06
Filed: 1933-03-16
Abstract: 415,171. Moulding and vulcanizing wheel tyres, tubes, &c. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, WILLSHAW, H., and BROADBENT, F. G., Fort Dunlop, Birmingham. March 16, 1933, No. 7963. [Classes 70 and 87 (ii).] In apparatus for moulding pneumatic tyres, tubes and other articles wherein internal fluid pressure is applied to the article during moulding and detent means is provided to prevent opening of the apparatus until the internal fluid pressure has been exhausted, the detent being directly controlled by the internal pressure, the detent comprises a member 7 moving commonly with one of the mould parts 1 and coacting with a fixed part such as a pillar 3. As applied to hydraulic press apparatus wherein mould parts 1 are pressed between platens 2<a>, 2b, 2<c>, between a press-head 5 and a hydraulic ram 4, detent members 7 are provided on a platform 6 moving with the ram 4. Each member 7 comprises a bracket 10 having a cylinder 9 containing a plunger 8. The end 25 of the plunger is formed with teeth 26 adapted to engage grooves 27 in a corresponding pillar 3 of the press. The plunger is normally held retracted by a spring 16 between flanges 17, 18 on the plunger rod 15, but is forced into engagement with the grooves by pressure fluid entering a chamber 21 and passing through holes 22 in the flanges 17, 18. The internal fluid pressure is supplied and exhausted through a pipe 28 connected by pipes 31 to the interiors of the articles and by pipes 32 to the chambers 21 in the members 7. The pipe 28 joins at right-angles a pipe connecting the pipes 31, 32 so that, on exhausting the internal pressure, the pressure in the chambers 21 is maintained as high as possible until exhaustion is completed. The detents then spring back and the ram may be lowered to open the moulds. The detents may be provided on pot,' 'watch-case ' or other types of apparatus.
Patent GB-1125045-A (GB)
Title: Improvements in and relating to clamping devices for coupling pipe ends
Inventor: SHEARMAN DONALD SIDNEY
IPC: F16L27/113
Filed: 1966-02-23
Abstract: 1,125,045. Pipe couplings. SOUTHBOURNE SHEET METAL CO. Ltd. 30 Dec., 1966 [23 Feb., 1966], No. 7979/66. Heading F2G. Manually-operable quick release clip or catch means, such as toggles 15, draw together telescoped members 12, 13 to press resilient sealing rings 8, 8<SP>1</SP> on to pipes 4, 4<SP>1</SP>, the rings being disposed between the inturned flanges of the members and of an inner sleeve 11.