baber/WOPTO huggingface dataset:
Patent GB-1114004-A (GB)
Title: Improvements in or relating to phenolic resins
Inventor: LEMON PETER HERBERT RICHARD BR
IPC: C08L61/10
Filed: 1965-08-05
Abstract: Rapid curing of a "high-ortho" phenolformaldehyde novolak resin is obtained by reducing the pH of the resin to less than 4 before curing.  Suitable acidifying agents are oxalic, p-toluenesulphonic and salicylic acids, and ZnCl2, AlCl3 and Al2(SO4)3.  In examples a novolak of phenol and formaldehyde is prepared i.p.o. zinc borate at pH 4.4 and is cured with hexzmethylene tetramine after adding salicylic acid or 656% aqueous p-toluensulphonic acid.  The pH is determined in 50% aqueous dispersion.
Patent GB-1109651-A (GB)
Title: Reactive triazine dyestuffs
IPC: C09B62/04
Filed: 1965-08-06
Abstract: The invention comprises dyestuffs of the formula <FORM:1109651/C4-C5/1> where n is 1-4, R is H, Y is Na or H and the chromogen is an azo, metallized azo, anthraquinone or phthalocyanine dyestuff.  The compounds are prepared by reacting cyanuric chloride with the chromogenic residue and then reacting the product with the sodium salt of sulphanyl - amido - N1 - methyl - N1 - omegamethane - sulphonic acid, or by first reacting the above sodium salt with cyanuric chloride and then reacting the product with the chromogenic residue.ALSO:N - p - acetylamino benzene sulphonamido-N1 - methyl - N1 - omega - methane - sulphonic acid is prepared by reacting N-p-acetylamino benzene sulphonyl chloride with methylamine and sodium oxymethane sulphonate.  Hydrolysis with HCl yields sulphanyl-amido-N1-methyl-N1-omega-methane sulphonic acid.
Patent GB-639965-A (GB)
Title: Improved device for controlling the entrance aperture of beehives
IPC: A01K47/06
Filed: 1947-12-22
Abstract: 639,965. Bee-hives. NANTES, G. C. Dec. 22,1947, No. 33755. [Class 5 (ii)] A stepped bar 15 is used for closing a hive entrance, a small pivoted gate 17 being then relied on for passage.
Patent GB-1519499-A (GB)
Title: Testing articles for fluid-tightness
IPC: G01M3/20
Filed: 1975-08-13
Abstract: 1519499 Leak testing articles LEYBOLDHERAEUS-VERWALTUNG GmbH 13 Aug 1975 [28 Aug 1974] 33807/75 Heading G1S An article 3 which contains or may have absorbed surrounding test gas such as helium is placed in a test chamber selectively connected either to a pressure reducing snuffler pipe 7 or to a gas detector 2 incorporating a mass spectrometer 5 and a vacuum pump 4. To prevent gas from a major leak from being pumped out before a test can take place the test chamber is fitted with a gas circulating fan 16 to speed up the test procedure and an additional container 11 is connected to the vacuum pump 4 so that it may be exhausted and then connected to the chamber 1 so that the gas in the chamber expands also into the container 11. If no major leak is found then the test chamber is evacuated via valve 15 to the low pressure required for the operation of the spectrometer or may be connected thereto via valve 10 and an evacuated container 11. The chamber 1 may also be connected to a further container 23 holding nitrogen which is allowed to enter the chamber 1 to prevent atmospheric helium from entering 1 during exchange of test articles.
Patent GB-630878-A (GB)
Title: Valve operating means
IPC: F16K31/46
Filed: 1946-11-14
Abstract: 630,878. Manually - actuated valves. SPECIALTIES DEVELOPMENT CORPORATION. Nov. 14, 1946, No. 33837. Convention date, Dec. 21, 1945. [Class 135] A valve 38, Fig. 1, e.g. for controlling the discharge of gas from a storage container into an inflatable float, is actuated by pulling a cord 80, which first rotates a lever 70, pivoted on a bell-crank 52 and having a cam-portion 74 bearing on the valve casing, to turn the bellcrank and unseat the valve against the action of the gas pressure, and then exerts a direct force through the lever and bell-crank to completely open the valve. A pair of spring- fingers 75, Fig. 3, co-operating with grooves 87 in the valve casing, serve as a locating means for the bell-crank 52.
Patent GB-366162-A (GB)
Title: Improvements in and relating to umbrellas, sunshades and the like
IPC: A45B25/12
Filed: 1930-11-10
Abstract: 366,162. Umbrellas &c. CUMMING, H. M., 11, Poultry, London. Nov. 10, 1930, No. 33839. [Class 134.] An umbrella or the like is provided with a frame slidablv mounted on the central stick 1 such that the frame may be moved into and retained in either of two limiting positions. Fixed rib-retaining means such as a cap 12 are also provided whereby the upper ends 14 of ribs 4 are retained close to the stick or released therefrom according to the position of the frame on the stick. A notch member 3 whereto the ribs 4 are pivoted, is slidable on a bottom part 2 of the stick 1 and its longitudinal movement thereon is limited by a pin 5 on the part 2 engaging a slot 6 cut in a sleeve 7 forming part of the notch member 3. The pir. and slot connection may be covered by a bush 8. The stick 1 and part 2 may be of steel or wood and in the latter case a sleeve or bush of metal may be provided whereon the notch member 3 may slide. To prevent undue movement, the sleeve 7 may carry one or more spring blades 10 or bowed leaf springs which are urged through long slots 9 in the sleeve 7 by a cap 11 so as to abut the part 2. The cap 11 may be secured frictionally to the bush 8 or by screwing to the sleeve 7. The cap 11 may be of steel or of wood and fitted. interiorly with a screwed metal sleeve. Specification 359,783 is referred to.
Patent GB-212631-A (GB)
Title: Improvements in or relating to a method of and machines for piling roped cloth in circular kiers and the like
IPC: D06B23/00
Filed: 1922-12-12
Abstract: 212,631. Lyth, J. J. Dec. 12, 1922. Piling fabrics in rope form. - The feed-conduit 35 through which the cloth is fed into the kier, bin, &c. rotates about a vertical axis passing' through the axis of its inlet-hopper 36, while its delivery end, which is eccentrically positioned, terminates in a section 42, 44 having an oscillating movement, also about a vertical axis; thus, the mechanism as a whole rotates about an axis that corresponds to the axis of the kier &c., while the point of delivery extends from the centre of the kier to a point at its periphery. As shown, the piling-mechanism is carried by a casing 28 on which the driving-motor 31 is mounted; the motor drives through worm-gearing a base-plate 29 on which the mechanism is actually mounted and which itself runs on an up-standing ball-race 27. The hopper 36 at the inlet end of the conduit and the intermediate section 35 of the latter are carried by and rotate with the base-plate; the delivery-section is mounted in bearings on the base-plate and is oscillated by a chain 64 passing round a sprocket 65 and secured at one end to a lever 63; the latter is oscillated by a cam 61 which derives its motion through a train of gears 59 from a stationary rack 60 integral with the casing 28. The cam is of a form such that the delivery section of the conduit moves with increasing linear speed, so far as its oscillatory motion is concerned. as it approaches the centre of the kier and vice versa. To extend the range of delivery, there is mounted on the section 44 a section 45 carrying the deflector 49 and which is capable of sliding backwards and forwards; for this purpose the section is secured to a chain 55 actuated by a sprocket 53 itself attached to a pinion 52 which engages a rack 51; as the section 44 swings so the pinion is rotated and this motion is transmitted to the section 45. The mechanism is protected by a cover 72 and by a cap 74, while the construction of the base-plate is such as to exclude grease and oil from the kier. Bleaching fluid, air, &c. is supplied under pressure to an annular space 39 formed by a stationary flanged collar 38 and grooved plates 37 rotating with the hopper 36, and from this space liquid &c. is supplied to annular passages 69 surrounding rings of perforations 71 on the conduit sections; the flow of liquid facilitates the passage of the cloth, and may at the same time serve for its impregnation. An indicator 76 projecting through the cover shows when the delivery section 44 has swung beneath the base-plate, and indicates whether the piling- device may be raised from the kier. For this purpose it is supported by ropes 20 from a carriage 12 mounted on an overhead trackway 11 extending above the kiers; to lift the device, drums 19 to which the ropes are attached are rotated in unison by gearing 15 - - 18; after releasing the carriage by withdrawing brake-shoes 22, the carriage may be moved to a position over another kier, and on to which the piling-device is lowered.
Patent GB-1436290-A (GB)
Title: Metal frame constructions
IPC: E06B3/58
Filed: 1974-08-01
Abstract: 1436290 Glazing B MANTON J F MITCHELL and D A J TWEEN 1 Aug 1974 33952/74 Headings E1J and E1R A frame structure comprises a frame with a channel receiving the edges of a panel 5, sealing members 6 at the mouth of the channel, thus forming a passage, and closed cell rigid foam material filling the passage. The frame comprises a frame member 1 of Z-shape secured to a wooden support frame 3 by holding strip 15, and a glazing head 9 clipped onto the frame member 1. Seals 6 of mastic or plastics are provided. Foaming agent(s) are injected through holes in webs 7 to fill the spaces in the glazing boles in webs 7 penetrates to the passage. Strips 15 are discontinuous and foaming agents are injected between the gaps to fill the space adjacent support frame 3. The foam prevents leakage of water.
Patent GB-1358387-A (GB)
Title: Thin film circuits
IPC: H01C7/00
Filed: 1971-07-20
Abstract: 1358387 Thin film circuits HEWLETTPACKARD CO 20 July 1971 [20 July 1970] 34027/71 Heading H1R In the manufacture of a thin film circuit including capacitors and resistors, film electrodes 12 to 16 are deposited on an insulating substrate 11, the upper surfaces thereof are oxidized to form dielectric layers 19, dielectric layer 22 is applied over the substrate and oxidized electrodes, then resistive layer 23 and conductive layer 24. The substrate may be sapphire, glass or ceramic. The film electrodes may be #- tantalum, hafnium, aluminium, niobium, titanium or zirconium applied by cathode sputtering or vapour deposition using photo-etching or ion beam etching techniques. The films may initially be electrically interconnected and their surfaces may thus be oxidized by anodization in one direction (Fig. 2, not shown). The interconnections and a contact pad are subsequently removed. Dielectric coating 22 may be silicon oxide, silicon dioxide, hafnium dioxide, aluminium oxide, yttrium oxide, tantalum pentoxide or silicon nitride and may be applied by sputtering, vapour deposition or electron beam deposition. The resistive layer 23 is preferably tantalum nitride applied by reactive sputtering. It may also be nickel-chromium, hafnium nitride or rhenium. The conductive layer 24 may be chrome gold, molybdenum gold, nickel gold or copper. The thin film circuit is now fabricated from the precursor unit so formed by first etching, using a photo-resist mask, areas 25, 26, 27, 28 down to dielectric layer 22, defining the width of resistors between 25 and 26, 27 and 28, 26 and 28. Then using a mask conductive material, e.g. gold, copper is plated on to the conductive layer 24 to constitute external connection pads, interconnections and capacitor electrodes. Then, using photo-resist masking and etching, layers 23 and 24 are removed from all the areas around the various elements (Fig. 6, not shown). As shown each capacitor is effectively two capacitors in series, being constituted by one of the films 12 to 16 with external connection, and two separated electrode layers, e.g. 31, 36 or 32, 37 having external connections. The resistors are finally formed by etching the conductive layer overlying them. The resistive material may have a sheet resistivity lower than that desired, the substrate may be heated first to stabilize the resistive film, and then to increase the resistivity to that desired.
Patent GB-1063908-A (GB)
Title: Process and apparatus for producing anhydrous alumina
Inventor: FILIPPI LUIGI
IPC: C01F7/444
Filed: 1964-08-20
Abstract: Al(OH)3 is dried, prior to calcination in a rotary kiln, by passing it concurrently with waste hot gases from the kiln through a drier having in its lower part a rotating shaft with vanes which throw the hydrate upwards into the gases. Al(OH)3 is fed via hopper (8), conveyer (9), and pipe (10) to a pear-shaped drier (2) with shaft (3) and vanes (4), supplied via pipe (6) with hot gases from kiln (1). Lighter particles from the drier are carried up pipe (11), separated in cyclone (12), and fed to kiln (1) via pipes (13) and (15), and screw (16). Dust is removed from the gases in cyclones or electrostatic filters (not shown), returned through pipe (19), and mixed with heavier particles leaving the drier through hopper (22). The mixture is then conveyed via bucket elevator (21), hopper (24) and shoot (25) into kiln (1).  The Al(OH)3 may by-pass drier (2) using screw conveyer (14), and all or part of the waste gases may be taken directly to dust collectors from the kiln.
Patent GB-305765-A (GB)
Title: Improvements in apparatus for making paper tubes
IPC: B31B23/00
Filed: 1927-12-16
Abstract: 305,765. Marks, E. C. R., (Bates Valve Bag Corporation). Dec. 16, 1927. Paper tubes.-Multiply and other paper tubes with longitudinally extending gusset folds are formed by passing paper sheet beneath a plate 22, longitudinal gussets being formed by guiding the edges of the sheet around the edges of the plate 22 and of plates 17, 23, anti-friction discs 20 being mounted on one of the plates 17. The folded tube then passes beneath a top guiding plate to a tractor device shown in Fig. 3 which draws the sheet through the apparatus.
Patent GB-813165-A (GB)
Title: Improvements relating to seats for motor vehicles
IPC: B60N2/54
Filed: 1957-11-01
Abstract: 813,165. Spring-mounted seats. BREMSHEY, F., and EICKHORN, K. H., [trading as BREMSHEY & CO.]. Nov. 1, 1957 [Nov. 6, 1956], No. 34186/57. Class 52(1) A vehicle seat 15 has a base frame 10 and a seat frame 13 connected together by a displaceable parallelogram linkage including two guide rods, vertical movements being dealt with by a spring-loaded hydraulic piston and cylinder, either the piston rod or the cylinder being constituted by one guide rod, the cylinder or piston being connected to the other. As shown in Fig. 1, lower guide rod 19 carries piston 24 and the cylinder 25 is adjustably mounted on a screw-threaded part 29 of upper guide rod 18. Piston 24 is apertured 33 and the cylinder is influenced by a spring 32. As shown in Fig. 2, cylinder 49 is pivoted 51, 53 to frames 10, 13 and constitutes the lower guide rod; piston 54 is carried by rod 55 connected to upper guide rod 48 by an extension 56 of the latter, the connection being adjustable by nut 68. By operation of handle 70, the position of piston 54 on the threaded end of rod 55 can be varied. In arrangements (not shown), an additional spring comes into play under heavy loads, larger piston apertures are used for passage of fluid due to downward motion of the seat than for upward motion, and that guide rod which is not the cylinder may be channel-shaped partially embracing the cylinder. The cylinder may constitute the upper guide rod. The seat may be mounted to face either way.
Patent GB-427205-A (GB)
Title: Improvements in and relating to magnetic alloys
IPC: H01F1/16
Filed: 1933-12-05
Abstract: 427,205. Foil, wire, ribbon, and tape. HERAEUS VACUUMSCHMELZE AKT.- GES., Hanau-on-Main, Germany. Dec. 5, 1933, No. 34216. Convention date, Dec. 6, 1932. Drawings to Specification. [Class 83 (ii)] Magnetic alloys for employment in electrical apparatus involving the use of small magnetic fields, such as the cores of Pupin coils and the coverings of Krarup cables, have an initial permeability of over 800 and are produced in the form of wire or tape by drawing or rolling to a thickness not exceeding 0À03 mm., thereby increasing the constancy of permeability under working conditions. The wire or tape may be produced from an alloy which has an inherently small variation in permeability in the range of small magnetic fields and may be subjected to cold deformation after a preceding annealing. The Specification includes diagrams showing the variations of permeability with field strength in two alloys, one being a 50 per cent iron nickel alloy and the other consisting of 76 per cent nickel, 5 per cent copper and the remainder iron, the curves representing thicknesses varying from 0À5 mm. to 0À01 mm. Specification 343,179, [Group XXXVI], is referred to. The Specification also refers to a known process of rolling, employing a considerable series of increasingly smaller rollers whereby metal tape of a thickness of 0À01 mm. may be produced.
Patent GB-619005-A (GB)
Title: Improvements in lawn mower driving mechanism
IPC: A01D69/02
Filed: 1946-11-19
Abstract: 619,005. Lawn-mowers. WORTHINGTON, E. H. Nov. 19, 1946, No. 34216. Convention date, Dec. 3, 1945. [Class 6 (ii)] A lawn-mower comprises a framework, ground wheels A, a rotary cutter E driven by gearing from said wheels, a shaft O journalled in a supporting frame L driven by a motor Q, a handle J for guiding purposes and also for moving the frame L relative to the mower framework thereby moving the shaft into and out of engagement with the wheels A. The frame L pivots about the point K whereon the roller H rotates. A storage battery S supplies power to the electric motor Q, both being mounted on the frame L thereby biassing wheels P on the shaft O into engagement with the wheels A. A tensioning device U is connected to the handle J and comprises a pivot pin U<SP>1</SP>, a spring U<SP>2</SP>, an abutment U<SP>3</SP> and a stop U<SP>4</SP>-the rod U 'passing through a member T<SP>2</SP> on the storage battery retaining part T. By moving the handle J the contact pressure between the wheels P and A can be varied. U.S.A. Specification 1,866,380 is referred to.
Patent GB-456086-A (GB)
Title: Improvements in the copper coating of articles
IPC: C25D5/10
Filed: 1935-12-11
Abstract: 456,086. Making compound tubes or tanks. HEILBUT, M. H., Kennan's House, Crown Court, Cheapside, London.-(Bundy Tubing Co. ; 4815, Bellevue Avenue, Detroit, Michigan, U.S.A.) Dec. 11, 1935, No. 34312. [Classes 83 (ii) and 83 (iv)] [See also Groups II and XXXVI] Soldering.-To obtain a bright, smooth, uniform copper coating on a ferrous tube or tank the copper-coated article is heated to melt the copper coating, a film of carbon being applied to the article prior to the melting of the coating, which is also utilized to weld together parts of the article, e.g. in the formation of a tube of the kind described in Specification 359,731. In the form shown copper coated ferrous strip stock passes through tube forming rollers 6 and then through a body of absorbent material 30 which is kept moistened with a liquid which will crack and deposit carbon when heated to a temperature less than the melting point of copper, e.g. mineral oil or vegetable or animal fat. The tube then passes into a muffle 20 to which non- oxidizing gas, e.g. hydrogen or cracked illuminating gas, is supplied by pipes 23, 24 and in which it is heated to effect the deposition of the carbon and then melt the copper coating by means of alternating current passed between electrodes 10, 11, which are preferably constructed as rollers, and electrodes 12, 13 in a housing 21 which communicates with a cooling chamber 22 also supplied with non- oxidizing gas by a pipe 25. The film of carbon may also be obtained by the cracking of gas, e.g. vaporized mineral oil or illuminating gas which has preferably been bubbled through methanol, alcohol, oil, or commercial lacquer thinner, which is supplied to the muffle 20. A separate supply of non-oxidizing gas to the muffle may then be omitted. Alternatively the carbon may be applied by allowing a carbon-producing flame to play on the tube prior to its entry into the muffle or by coating the tube with a mixture of carbon, e.g. lampblack, with a carrier, e.g. varnish or shellac. The carrier may be such that it cracks and deposits an additional film of carbon when heated in the muffle. The muffle may be heated in any suitable way, e.g. by gas or electricity. An accumulator tank may be electroplated with copper and then heated to melt the coating after the deposition of a carbon film to smooth the coating and to weld various fittings to the tank.
Patent GB-979286-A (GB)
Title: Preparation of polybutadienes
IPC: C08F36/04
Filed: 1963-08-30
Abstract: Polybutadiene having at least 80% cis-1, 4-configuration is obtained by polymerizing 1, 3-butadiene in the presence of a stereospecific catalyst, first at a low temperature in the range 20 DEG  to 80 DEG F. to obtain at least 40% conversion of the butadiene, and then continuing the polymerization at a higher temperature in the range 80 DEG  to 200 DEG F. to at least 80% conversion of the butadiene. Either or both of the low and high temperature polymerization steps can be carried out in stages in either a batch or a continuous operation.  The low temperature polymerization step in preferably carried out in two stages, the first at 20 DEG  to 60 DEG F. and the second at 60 DEG  to 80 DEG F., and the higher temperature polymerization step is preferably carried out in one stage at 80 DEG to 130 DEG F.  In the preferred continuous three stage process, the residue time in each reactor may be 30 to 60 minutes.  The polymerization is preferably carried out in an inert hydrocarbon diluent.  The stereospecific catalyst is preferably selected from (1) R11mM+TiI4 where M is Al, Hg, Zn, Be, Cd, Mg, Na or K and R11 is alkyl, cycloalkyl, aryl, alkaryl, aralkyl, alkylcycloalkyl, arylcycloalkyl or cycloalkylalkyl, and m equals the valence of M; (2) R11nM1+TiCl4+TiI4 where M1 is Al Zn, Mg, P6, Na or K; (3) R113Al, R112Zn or R112Mg+TiXa where X is chlorine or bromine and n is 2, 3 or 4, and elemental iodine; (4) R11xM11+TiX4+M111I6 where M11 is Al, Mg, Zn, Ga, In, Tl, X is Cl or Br and M111 is Be, Zn, Cd, Al, Ga, In, Tl, Si, Ge, Sn, Pb, P, Sb, As and Bi and b is 2, 3, 4 or 5; (5) R11xM11+TiI4+MivXc where Miv is Al, Ga, In, Tl, Ge, Sn, Pb, P, Sb, As or Bi, X is Cl or Br and c is 2, 3, 4 or 5, and (6) R1nM1111 or R12AlH+TiCl4 and/or TiBr4+CaIbHcXd where R1 is alkyl, alkenyl, cycloalkyl, cycloalkenyl or aryl, M1111 is Mg, Al or Zn, 'a' is an integer from 1 to 20, 'b' from 1 to 6, 'c' from 0 to 41, 'd' from 0 to 6 and X is F, Br or Cl. Lists of catalysts are given.  A flow sheet is given illustrating the polymerization of butadiene in four reaction zones, the catalyst being triisobutylaluminium, titanium tetrachloride and iodine.  There are several examples using the same catalyst.