baber/WOPTO huggingface dataset:
Patent GB-857916-A (GB)
Title: Improvements in or relating to machines for the heat-treatment of running yarns
Inventor: DOBSON AUSTIN
IPC: D02J13/00
Filed: 1958-04-08
Abstract: 857,916. Crimping yarns. SCRAGG & SONS Ltd., E. Feb. 24, 1959 [April 8. 1958], No. 10970/58. Class. 120(3). [Also in Group XXXV]  A circuit for an electric heater which treats e.g. modifies or sets crimp in, a running yarn is arranged to reduce the heating rate when the yarn stops or breaks. The reduction of heating rate may be by means of a resistor placed in series with the heater 19, 20, or by means of switching the heater from one bus bar 18 to another bus bar 16 at a lower voltage by means of a contact 28 operated by a relay coil 24 energised by a switch 23 coupled to a detector bearing on the yarn. The bus bars 16, 18 are fed from transformer secondary windings 12, 17 with a third bus bar 15 common to both. The transformer primary windings 11, 13 are fed at constant voltage by means of a circuit containing a heater 31 acting on a thermally variable resistor 35 which forms part of a bridge network which breaks the supply through a contact 40 when the voltage rises. The resistor 35 is also sensitive to ambient temperature. A thermocouple 22 is provided to measure the heater temperature. The contact 28 may also be arranged to change onto the lower voltage bus bar should the supply to a motor pulling the yarn through the heater fail. The heater plate 20 may be vee-shaped and in direct thermal communication with the heater element 19, or it may form part of the heater construction. Another method of maintaining the heater voltage constant is described in the Specification wherein the output of a thermally variable resistor or thermocouple is caused through a bridge network to operate a reversible motor varying the output voltage of a transformer.
Patent GB-527726-A (GB)
Title: Improvements relating to road cycle dynamos
IPC: H02K21/22
Filed: 1939-04-14
Abstract: 527,726. Magnetos. LUCAS, Ltd., J., ROBINSON, C. E., and HUYTON, A. April 14, 1939, No. 11314. [Class 35] A cycle-lighting magneto of the type adapted to be mounted at one end of the wheel hubs has a permanent magnet rotor with imbricated poles surrounding a stator, also with imbricated poles, its rotor having a central boss supported in a bearing sleeve mounted on the stator, and surrounding the wheel hubs. The stator comprises two imbricated sets of polepieces m mounted on a cylindrical member a having a closed end formed with a boss d which is clamped between a shoulder e on the wheelspindle and the fork g. The rotor comprises an annular magnet g with imbricated pole-pieces r mounted on a plate o by means of a flange s. To the plate o is attached a boss p rotating within a bearing sleeve l in the member a. The rotor is driven by means of a plate t mounted on the hub f and carrying a cam v formed of discs of leather, rubber or the like, which can be brought into the path of a projection on the rotor by means of a lever x. Fig. 6 shows an alternative driving- device consisting of a wire spring 5 mounted in the rotor and having a bent portion 6 with which the end of the lever x may be made to engage.
Patent GB-466951-A (GB)
Title: Improvements in and relating to plant for treating sewage
Filed: 1935-11-04
Abstract: 466,951. Treating sewage. HOFFMANN, M. Nov. 4, 1935, No. 11367/37. Divided out of 465,271 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 22, 1936. [Class 111] In apparatus of the type comprising a helical track 1 into which sewage is delivered by a pipe 10 and from which solid matter falls direct into a chamber 4 while the liquid first adheres to the under surface of the track and then falls into a channel 8 leading to a settling-chamber 5, the wall 71 of the chamber 5 is made with a lip 12, projecting under the open centre of the track 1, so that a beaker for taking a sample of the liquid in the settling chamber can be passed down through the centre of the track. The settling chamber is divided into two parts by a curved baffle 11. Specifications 444,463 and 465,271 are referred to.
Patent GB-113785-A (GB)
IPC: C04B7/42
Abstract: 113,785. Borch, N. S. Feb. 24, 1917, [Convention date]. Cement, Portland.-Portland cement is made from a raw mixture which contains a proportion of raw materials having hydraulic properties such as a mixture of slag and lime by adding to the slurry a substance which prevents or delays the setting of the slurry, for instance, “ per cent. (calculated with reference to dry slag) of cane sugar, oxy-acid, oxy-aldehyde, or oxy-ketone.
Patent GB-663742-A (GB)
Title: Improvements in or relating to twisting equipment for threads
IPC: D01H1/00
Filed: 1948-04-27
Abstract: 663,742. Textile doubling and twisting. BRUCKNER, L. April 27, 1948 [July 10, 1947; Dec. 13, 1947], Nos. 11502/48 and 11503/48. Class 120(ii) A device for twisting or doubling of the kind in which threads from delivery bobbins are twisted before they pass to nip rollers to receiving bobbins has the delivery bobbins feeding each receiving bobbin arranged behind another in transverse groups so as to form a plurality of rows parallel to the line of the receiving bobbins, the delivery bobbins of each group being rotated by a common drive. Delivery bobbins 1 on spindles 11 are rotated from a common shaft 8 through friction surfaces 21, 22, or toothed wheels. The central part of spindle 11 is held in a bearing 15 arranged in a slide-block 17 displaceable against the action of a spring. A conicalended stud 19, screwed in the slide-block 17, may be jammed in a friction body 20 to hold the spindle 11 out of driving engagement. Threads from the delivery bobbins 1 pass through rollers 4 to an ordinary twisting spindle. The Specification as open to inspection under Sect. 91 comprises also means whereby the spindle may be held out of engagement by a resilient member pressed onto the spindle, or by a yielding element snapping beneath a collar. This subjectmatter does not appear in the Specification as accepted.
Patent GB-237376-A (GB)
Title: Improvements in or relating to annular furnaces with revolving hearths
IPC: F27B9/30
Filed: 1924-05-09
Abstract: 237,376. Honigmann, L. May 9, 1924. Tunnel furnaces. - The space above an annular rotating hearth is divided by a metal partition r into two parts of which the lower serves as a heating and reaction space, while the upper may be used to provide additional heating when desired. The partition may have heat storing and strengthening ribs r<1>. The hearth runs on axially fixed rollers f and has side seals g.
Patent GB-168035-A (GB)
Title: Improvements in and relating to negative material for colour photography
IPC: G03C7/26
Filed: 1921-04-21
Abstract: 168,035. Wolff, E. Aug. 14, 1920, [Convention date]. Drawings to Specification. Colour photography; plates &c. with multiple sensitized layers.-Sensitized negative material, more particular for colour kinematography, has different monochromatic coatings, sensitized for the particular colours, arranged adjacent to each other, that is to say, not superposed but side by side or one above the other in succession on the same support. The negatives can be exposed in ordinary apparatus without colour filters. Specification 453/08 is referred to. In the Specification as open to inspection under Sect. 91 (3) (a) it is also explained that to compensate for any different degrees of sensitiveness the slit of a blind shutter can be adjusted. This subject-matter does not appear in the Specification as accepted.
Patent GB-661935-A (GB)
Title: Improvements in or relating to the production of fine crystalline aluminium oxide
IPC: C01F7/02
Filed: 1949-04-30
Abstract: Finely crystalline alumina is prepared by adding to finely divided artifically prepared or natural hydrated alumina, e.g. bauxite, a phosphorus compound, e.g. phosphoric acid, phosphorus pentoxide, ammonium phosphate, singly or in admixture, and free from alkali metal compound, and calcining at about 1000-1300 DEG C. for 1-5 hours.  Up to 10 per cent of diammonium phosphate, calculated on the aluminium oxide content of the base material, may thus be employed. The phosphorus compounds may be added before, after or simultaneously with the grinding operation, which may be effected in the dry or wet state.  In the latter case, the mixture is dried up to 400 DEG C. and may then be further pulverized.  The alumina obtained is used for grinding and polishing purposes.
Patent GB-735756-A (GB)
Title: Improvements in or relating to water faucets
IPC: E03C1/04
Filed: 1952-11-07
Abstract: 735,756. Valves. FINNEGAN & CO. (SHEFFIELD), Ltd., J. F., and WADSWORTH, A. S. Jan. 20, 1954 [Nov. 7, 1952], No. 11582/52. Class 135. A tap of which the closure member 10 is carried by a tripod 9 engaged in a groove 5f in a screw-threaded member 5 and is moved towards or away from a seat 2c by rotation of the member 5 within an internally-threaded body part 4 has passages Y formed between a hexagonal or splined part 5d of the member 5 and a mating hole in an operating sleeve 7, whereby water which leaks along the threads can escape to an annular opening X and thence join the main stream issuing at 5e. A nozzle cap 8 retains the operating sleeve in engagement with the part 5d and with a split resilient ferrule 6 which is thereby caused to expand radially at its upper end into a groove 4a in the body part 4 and limit the degree of movement permitted the member 5. A closure member 3, arranged to seat at 2b when the main closure member 10 is removed, has a fluted portion 3b which merges into a disc at its lower end so as to assist flow past the main closure member. In a modification, the closure member 10 is carried by a part integral with the member 5.
Patent GB-731609-A (GB)
Title: Improvements in or relating to combustion equipment for gas turbine engines
Inventor: JOHNSON FRANCIS MURRAY
IPC: F23D11/12
Filed: 1952-05-07
Abstract: 731,609. Liquid fuel burners. ROLLSROYCE, Ltd. April 28, 1953 [May 7, 1952], No. 11593/52. Class 75 (1). [Also in Group XII] Combustion equipment for a gas turbine engine comprises a fuel injector assembly mounted at the inlet end of a flame tube and having a passage extending therethrough for conveying, without substantial deviation, part of the combustion air from a casing surrounding the flame tube, whereby the air flow through the passage assists the atomization of liquid fuel flowing over a spill lip at the downstream end of a surface of the assembly. Fig. 1 illustrates one of a series of fuel injectors 5 arranged to supply fuel to an annular flame tube 1, 2 and mounted within a fairing 3 having an opening 3a aligned with each fuel injector 5, for allowing passage through the tubular injector body 6 of part of the air stream. Liquid fuel is supplied through a pipe 11 to a gallery 10 surrounding the tube 6 and passes through tangential ports 12 into an annular channel 17 formed between flanges 8, 9. The swirling fuel passes over the flange 9 into the combustion chamber and is atomized to form a conical sheet of spray by the air stream through the tube 6 which is diverted by a conical baffle 13. A modified construction is described in which the injectors 5 are mounted on an annular fuel supply manifold. In a further construction the fuel injector comprises a block 20, Fig. 2, having side surfaces each comprising a flat upstream portion 20a and an outwardly curved downstream portion 20b having a sharp outer edge 20c. Mounted adjacent each surface 20a is a part 21 forming an air passage having upstream, parallel side walls 21a, and downstream, divergent side walls 21b joined by a wall 21c convergent towards the surface 20a. A fan-shaped air jet is produced which atomizes at the edge 20c liquid fuel supplied to the surface 20b through drillings 22 in the block 20. A flat sheet of spray is thus produced at each side of the block 20. The surfaces 20b may alternatively be curved so as to produce a curved sheet of spray, and a plurality of injectors may be combined to produce a substantially continuous spray around a combustion chamber.
Patent GB-1521933-A (GB)
Title: Photopolymerisable epoxy resins
IPC: C08G59/28
Filed: 1976-03-23
Abstract: 1521933 Photo-sensitive materials comprising epoxy resins CIBA-GEIGY AG 8 March 1977 [23 March 1976 16 July 1976] 11598/76 and 29792/76 Heading G2C [Also in Division C3] Photo-resists are obtained by imagewise exposure of coatings comprising epoxy resins having the formula: in which a is an intigen; R and R' represent a group or -O-(OC) c -R<SP>5</SP>-(CO) c -O-; each R<SP>2</SP> represents H or -(CH 2 NH) d COC(R<SP>6</SP>)=CH 2  (at least one of the 2a group R<SP>2</SP> having the latter formula); each R<SP>3</SP> is a C alkyl group or conjointly represent a group -CH 2 CH 2 -, -C(R<SP>7</SP>R<SP>8</SP>)CO-, -CH 2 CH(CH 3 )-, -CH 2 CH 2 CH 2 -, -COCO-, -COCOCO- or -COC(OH) 2 CO-; R<SP>4</SP> is a divalent C 1-8  aliphatic, cycloaliphatic or araliphatic radical; R<SP>5</SP> is a C 2-20  aliphatic radical or providing c=1 a group R<SP>6</SP> is C 1-4  alkyl; and R<SP>7</SP> is H, methyl or ethyl; b, c and d are 0 or 1. I may be prepared by first reading a diapoxide with a diol, dicarboxylic acid or heterocycle of formula R<SP>1</SP> H 2  to form an advanced eopoxy resin The advanced epoxy resin is reacted with HO(CH 2 NH) d COC(R<SP>6</SP>)=CH 2  to replace some or all of the secondary OH groups by groups -OR<SP>2</SP>. I may be photo-polymerized by (image wise) exposure to a clinic radiation and may be developed by washing with water or an organic solvent. The photo-polymerized portions may be further crosslinked via the epoxy groups, e.g. by heating at 100-200‹C in the presence of dicyandianide.
Patent GB-129792-A (GB)
Title: Improvements in Sheet Supports for Railway Wagons and the like.
Inventor: WALLACE CHARLES
IPC: B61D39/00
Filed: 1918-07-16
Abstract: 129,792. Wallace, C. July 16, 1918. Covers, wagon and like.-Relates to tarpaulin and like supports of the type comprising an inverted-U shaped member having its legs pivoted in the ends of the wagon. Each leg a is extended below its fixed pivot b, and is provided at its lower end with a spring-pressed roller g which rides upon the interior of a U-shaped guide h having cam-faces h<2> which are neither circular nor concentric with the pivot b. The spring e is housed in a casing d attached to the leg a, and becomes more compressed as the legs approach an horizontal position, the spring thus tending to raise and maintain the legs in an upright position. At its central portion, the guide is formed with straight portions meeting at an angle h', which thus forms a recess to receive the roller g when the support is in its vertical position.
Patent GB-108723-A (GB)
Title: Improvements in or relating to Apparatus for Heating Water and other Liquids Electrically.
Inventor: CHARLES ARTHUR
IPC: F24H1/12
Filed: 1916-08-18
Abstract: 108,723. Charles, A. Aug. 18, 1916. Heating by electricity.-A metal block, plate, or casing a is bored or cast with passages b forming a sinuous path for the liquid which enters at e and is discharged at f. Covers c, d are fitted to the top and bottom of the block and electric heaters, which may consist of resistance coils enclosed in thin metal casings, are clamped to the outer surface of the block by plates h. The leads are attached to clips n, o on the heating-elements and lugs p enable the apparatus to be fixed in position. Two or more of the geysers may be combined in parallel or series.
Patent GB-1503401-A (GB)
Title: Laser isotope separation by multiple photon absorption
IPC: B01D59/34
Filed: 1976-03-25
Abstract: 1503401 Isotopic enrichment using laser radiation UNITED STATES ENERGY RESEARCH & DEVELOPMENT ADMINISTRATION 25 March 1976 [22 April 1975] 11950/76 Heading C1A [Also in Division G6] Values are enriched in a particular isotope of an  element by irradiating a fluid containing a first molecular species having two or more isotopes of the element with infra-red laser radiation of a frequency which selectively excites molecular species of a given isotope to a first lower vibrational level, the same laser beam having sufficient intensity to then produce multiplephoton absorption (term defined) from the first lower vibrational level to a plurality of higher vibrational levels, at which level the molecules containing the particular isotope undergo chemical reaction; the reaction products so formed are separated from the fluid. The fluid is preferably a gas containing polyatomic molecules having four or more atoms. The gas may also contain a second chemical species which is substantially unreactive towards the laser radiation and the unexcited first molecular species, but reacts with the latter when excited to the higher vibrational levels. The chemical reaction may result in the first molecular species dissociating, in which case the second chemical species reacts selectively with at least one of the reaction products of the dissociation. Specifically a method is described of separating S isotopes by irradiating a gaseous mix of SF 6  and H 2  with pulsed CO 2  infra-red laser radiation, the radiation being sufficiently intense to produce multiple photon absorption, the excited SF 6  species reacting with H 2  and thereby separated from the unexcited (non reacted) species. Other volatile halides disclosed having spectral characteristics similar in nature to the infra-red CO 2  laser radiation are SiF 4 , CH 3 F, BCl 3 , NF 3  and CF 2 Cl 2 , each halide may be admixed with H 2  prior to radiation.
Patent GB-627685-A (GB)
Title: Production of fluoro-carbons
IPC: C07C17/00
Filed: 1944-06-23
Abstract: Fluorocarbons are prepared by the non-catalytic treatment of liquid fluorohydrocarbons with fluorine in admixture with a gaseous diluent, at normal temperatures with agitation in the liquid phase.  The reaction may be carried out in the presence or absence of any diluent not readily attacked by fluorine, for example a liquid fluorocarbon. The fluorine used is generally diluted with nitrogen, for example with 5 to 10 volumes of nitrogen in the initial stages of the reaction and with less than its own volume of nitrogen at the end; however, the reaction may be concluded with undiluted fluorine.  The process may be applied to the treatment of aliphatic and aromatic compounds, for example partially fluorinated n-heptane, benzene and toluene, and alphatrifluoro-methyl-cyclohexane.  The fluorocarbons obtained principally contain a greater number of carbon atoms than the initial fluorohydrocarbons and range from oily liquids to waxes and glassy solids.  The products may be purified by washing a solution of the crude mixture in a low boiling solvent such as an ether or fluorocarbon, drying and fractionating in vacuo.  The liquid products may be rendered more stable towards strong fluorinating agents by treatment with silver difluoride.  In examples (1) a fluorohydrocarbon b.p. 73-93 DEG  C., obtained by the vapour phase fluorination of benzotrifluoride at 200-210 DEG  C. over a goldplated copper catalyst, is introduced into a glass reactor and a fluorine/nitrogen mixture bubbled therethrough and the product is washed, dried and fractionated to provide fluorocarbon distillates and residues; (2) similarly, a mixture of a fluorohydrocarbon b.p. 150-200 DEG  C., obtained by vapour phase fluorination of benzotrofluoride as in (1) and recycled for further fluorination, and benzotrifluoride is treated as in (1) and the product extracted with C7 F16, washed, distilled to remove the solvent and then fractionated to yield like products.  The treatment of a liquid partially fluorinated methyl cyclohexane obtained in the vapour phase fluorination of alpha-trifluorotoluene is also described.
Patent GB-347866-A (GB)
Title: Improved electrical tumbler switch
IPC: H01H23/16
Filed: 1930-04-17
Abstract: 347,866. Tumbler switches. CHARLES, W. J., 200, Hagley Road, and WATSON, A., Hermitage, Gravelly Hill North, both in Birmingham. April 17, 1930, No. 12139. [Class 38 (v).] In a tumbler switch of the kind having both a quick make and a quick break, the movement of the switch is carried by a rigid metal bracket the bottom bar of which provides a fixed point of anchorage for the lower end of a coiled spring whose upper end has a dead-centre swing over movement. A bracket c on which the movement of the switch is mounted is of the form shown in Fig. 4. Lugs c<2>, c<3> are provided for attachment to the base a and upwardly-extending lugs c<7>, c<8> have holes c<9> which serve as bearings for the pivot pin e of the dolly f. A movable contact-member i is pivoted at j to the bracket c. A dead-centre compression spring h surrounds a staple m the lower end of which is anchored on the lower bar c<6> of the bracket c. The upper end of the spring h bears against a pin l the cranked part l<2> of which lies between the ends of the limbs of the staple m. In action, the dolly f by means of shoulders f<2>, f<3> engages, with lost-motion, a link g also pivoted at e. A slot g<7> in the link g engages the pin l which is thus moved to engage the opening i<4> in the contact-member i giving it a positive initial movement. The spring h then passes the dead-centre and finishes the movement. Slots g<6>, c<10> are cut in the link g and bracket c respectively to allow of the passage of the pins i and l.
Patent GB-550898-A (GB)
Title: Improvements in or relating to riveting
IPC: B21J15/02
Filed: 1941-09-20
Abstract: 550,898. Rivets. HUCK MANUFACTURING CO. Sept. 20, 1941, No. 12201. Convention date, Aug. 12, 1940. [Class 89 (i) [Also in Group XXII] In riveting sheet metal with intergaging countersink depressions, such as used in aluminium alloy sheets in the manufacture of aircraft, units are used with conical heads 26, provided with a relatively thin fairing flange 29 having a thin outer edge 28. The inner edge of the countersunk sheets is flattened at 12 causing some backflow at 13. The outer edge of the countersink may be recessed in coining dies at 17 to receive the edge of the rivet head. The countersinking may also produce deformation of the metal as at 19.
Patent GB-401288-A (GB)
Title: Improvements in feed water systems for boilers
IPC: F22D1/28
Filed: 1932-04-28
Abstract: 401,288. Heating feedwater. HANNEMANN, E., Nideggen, Eifel, Germany. April 28, 1932, No. 12245. Convention date, April 28, 1931. [Class 64 (i).] A high-pressure water-tube boiler operated at about the rate at which the whole contents of the drum would be evaporated in one hour is supplied with pure water through a feed valve 2, Fig. 1, controlled in accordance with the water level in the drum, and the water is heated by boiler steam in a direct contact heater 8 arranged in or directly above the boiler steam space. The water may be directed against a hood 12, Fig. 3, from which it flows downwards through filling bodies in a trough 11 having a perforated bottom, or it may flow downwards in a cascade over plates, or over the surfaces of a number of vertical cylindrical plates. In another modification, steam from the boiler upriser tubes is directed into an open receiver from which the water overflows into the boiler water. Specifications 19383 /96, 8004 /00, 10873 /00, 16474 /02, [all in Class 123, Steam generators], 14433/05. [Class 64, Heating], 4285/09, 23564/10 and 233,829, [all in Class 64 (i), Heating liquids &c.], are referred to.