baber/WOPTO huggingface dataset:
Patent GB-302599-A (GB)
Title: Manufacture of azo-dyestuffs insoluble in water
IPC: C09B29/20
Filed: 1928-12-17
Abstract: 302,599. I. G. Farbenindustrie Akt.- Ges. Dec. 17, 1927, [Convention date]. Azo dyes.-Azo dyes, insoluble in water and of good fastness to light, are produced in substance or on the fibre by coupling with arylides of 2 : 3- oxynaphthoic acid diazotized dihalogen-2-aminotoluenes carrying one halogen in 4-position and carrying at least one bromine atom. The following examples are specified : (1) Well-boiled cotton yarn is dyed a vivid bluish red, very fast to light, by impregnating in a grounding liquor containing the 2<1> : 5<1>-dimethoxyanilide of 2 : 3-oxynaphthoic acid and developing with diazotized 4-chloro-5- bromo-2-aminotoluene. (2) A similar bluish red dyeing is obtained by grounding with the 2<1>- or 4<1>-anisidide of 2 : 3-oxynaphthoic acid and developing as in (1), and a similar dull alizarin red dyeing is obtained by grounding with the 5<1>- chloro-2<1>-anisidide of 2 : 3-oxynaphthoic acid and developing as in (1). (3) A bluish red dyeing is obtained by grounding with the 51-chloro-21- anisidide of 2: 3-oxynaphthoic acid and developing with diazotized 4: 5-dibromo-2-aminotoluene, and a vivid yellowish red by grounding with the 2'- or 4<1>-anisidide or the 2<1> : 5<1>-dimethoxyanilide of 2 : 3-oxynaphthoic acid and developing similarly. (4) The bluish red dyestuff 4-chloro-5- bromo-2-aminotoluene # the 4'-anisidide of 2 : 3-oxynaphthoic acid is produced in substance. Specifications 6379/12, and 17279/13, [Class 15 (ii), Dyeing, Processes &c. for], are referred to. 5-Bromo-4-chloro-2-amitotoluene is obtained by acetylating 4-chloro-2-aminotoluene by means of acetic anhydride, brominating the product, and saponifying to remove the acetyl group. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use as diazo component of any dihalogen-2-aminotoluene carrying one halogen in 4-position and carrying at least one halogen atom other than chlorine. This subject-matter does not appear in the Specification as accepted.
Patent GB-318450-A (GB)
Title: Improvements in and relating to the flat-pressing of textile fabrics
IPC: D06C15/10
Filed: 1928-12-15
Abstract: 318,450. Krantz, H., and Krantz, W., (trading as Krantz S÷hne, H.). Oct. 20, 1928, [Convention date]. Pressing.-A fabric 13 which is hot pressed in a press 1, 3 and then immediately cold pressed in an adjacent press 2, 4, is supported on a travelling carrier passing over a roller 15 which is driven from a pulley 27 through a clutch 28 when the presses are open. The valves 12 controlling the supply of pressure fluid to and from the presses and the clutch 28 are operated by electromagnets &c. 22, 30 which are controlled by solenoids 38, 37 and contacts 34, 32 on a drum geared to the driving pulley 27, a pleating apparatus 21 is driven from the roller 15. Specification 22013/04 is referred to.
Patent GB-1025525-A (GB)
Title: Silica pigments and preparation thereof
IPC: C08L25/10
Filed: 1962-10-02
Abstract: Pigmentary silica is precipitated from aqueous Na silicate, Na2O(SiO2) x, by gradual acidification with mineral acids (e.g. HCl, H2SO4, HNO3, H3PO4) or with CO2 (which may be pure, diluted in flue gas, or from combustion of hydrocarbons) in the presence of an aqueous Na salt (e.g. NaCl, Na2SO4, NaNO3, Na3PO4, Na2CO3, or sea water) having an Na+ concentration greater than that of the Na silicate, and which is added gradually at least while x changes from 3.75 to 4.0, preferably in amounts from 0.1 to 2.0 moles per mole of SiO2 present. x may be 3.22 initially, and is increased to 15 or more, and the Na salt may be added during all the stages.  Minor amounts, e.g. less than 5%, of salts of Groups II and III, e.g. MgCl2, CaCl2, AlCl3, Al2(SO4) 3 or alum, may also be added, especially while x changes from 4 to 6.4.  Temperatures from 0-100 DEG  C. may be employed.  The precipitated SiO2 may be washed with solutions of NaHCO3, mineral or organic acids, CO2, or salts of Groups II-VI metals, followed by water; and then dried and ground.
Patent GB-806019-A (GB)
Title: Apparatus for continuously carrying out chemical and physical reactions
IPC: B01J19/18
Filed: 1956-12-07
Abstract: <PICT:0806019/III/1> An apparatus for chemical or physical reactions (e.g. crystallizing) comprises a series of concentric tubes 2 secured to a base-plate 1, and a similar series 11 secured together at the top and rotating freely within the spaces between the stator tubes. The liquid reactants are fed through an inlet pipe 3, and rise in the annular space between the outer stationary wall and the adjacent rotating wall, which imparts motion and mixing to the reactants until they overflow into the next inner interspace. The tubes may be spaced unequally to provide interspaces of equal volume.  The reaction product is finally discharged through a pipe 4.  Liquids may be added, or reaction products withdrawn, at intermediate stages through valves 8.  The rotor tubes may be provided with internal projections to aid mixing, and conveying of the liquids.  The stationary tubes may be double-walled to admit heating or cooling fluid.  The securing means at the top of the rotor tubes may take the form of bars, a perforated plate, or an imperforate plate, spaced a little above the ends of the tubes. The apparatus may be applied to the saponification of fatty oils with alkali, to crystallizing liquids, or to organic reactions.
Patent GB-1472180-A (GB)
Title: Synchronising devices
IPC: H03L7/00
Filed: 1974-08-28
Abstract: 1472180 Automatic phase control SIEMENS AG 28 Aug 1974 [29 Oct 1973] 37526/74 Heading H3A A synchronizing device of the type in which a frequency divider FT produces from an input signal E a timing signal T whose phase is adjusted in dependence on that of a received binary signal A comprises a discriminator EX1, KS responsive to the signals A and T to produce a signal G which determines whether pulse flanks of the signal E are suppressed or whether extra flanks are added, and a switch EX2 which, in dependence on the state of the signal G, applies the signal E either in inverted form or directly to the divider FT. Assuming that triggering of the divider occurs on the rising flanks of signal as shown in Fig. 2, then an additional triggering is produced if inversion takes place at time t 3 , waveform H1 and a triggering is omitted if inversion takes place coincidently with a flank, at time t 4 , waveform H2. The discriminator comprises an EXCLUSIVE-OR gate EX1 and a bi-stable circuit K2, the switch EX2 being a further EXCLUSIVE-OR circuit.
Patent GB-1005181-A (GB)
Title: Improvements in ladders
Inventor: HURLEY JOHN JOSEPH
IPC: E06C7/08
Filed: 1960-11-02
Abstract: 1,005,181. Making ladders; jointing. F. PARKER & CO. Ltd. Nov. 27, 1961 [Nov. 2, 1960], No. 37720/60. Headings B3A and B3V. [Also in Division A6] A ladder comprising rectangular tubular. stiles 10 having rungs 16 with longitudinal corrugations 18, each rung being passed through a hole in the inner wall 12 of the stile having notches to fit the corrugations 18 which abut the outer wall 14 and the uncorrugated end 17 being passed through a hole in the outer wall 14 and spun over. Both the upper and lower surfaces of the rung are corrugated. The holes in the inner wall 12 are notched by means of a punch comprising two halves 22, 24 pivoted at 28 and 30 on a carrier 26 and having a corrugated head 32, the two halves being forced apart by a wedge 46 to engage the edges of the hole as the punch is forced through.
Patent GB-1273348-A (GB)
Title: Improvements in and relating to pin stenters
Inventor: CLULEY ALAN SHIRLEY
IPC: D06H7/06
Filed: 1968-08-08
Abstract: 1,273,348. Stenters. COURTAULDS Ltd. 7 Aug., 1969 [8 Aug., 1968], No. 37809/68. Heading D1S. Apparatus for batching fabric from an overend pin stenter, i.e. a stenter in which the plane of the loop formed by each chain 1, 4 is vertical, comprises (a) a stripping roller 6 (i) having its axis substantially parallel to the axes of the stenter chain wheels 2, 5, (ii) positioned closely adjacent the point at which the fabric 22 is to be stripped from the stenter pins 3, (iii) driven so that its surface has a peripheral speed which is substantially the same as the linear speed of the chains 1, 4, and (iv) having a surface capable of engaging the fabric so as to restrain it from contracting widthwise during transfer to a freely rotatable batching roller 14 driven by surface contact with the roller 6, the width of the fabriccontacting face of the roller 6 being slightly less than the distance between the chains 1, 4; and (b) a wheel 7 of substantially the same diameter as the roller 6 adjacent each end of the latter, the wheels 7 and the roller 6 being substantially coaxial and each wheel 7 having a circumferential row of radially outwardly projecting spikes for engaging a selvedge of the fabric 22. The surface of the roller 6 is covered with a non-slip rubber composition. The diameter of the roller 6 is slightly reduced adjacent each end 9, 10 and this may be provided either by removing portions of the roller surface or by increasing the diameter of the remainder of the roller by wrapping it with a fabric tape coated on one side with an adhesive. A rotatable circular knife 13 projects into each of the gaps 11, 12 between the roller 6 and the wheels 7 so as to sever the selvedges which are removed from the wheels 7 by known means. The roller 14 is supported at each end by an arm 15 each hanging from a pivot 16. A weight 17 is attached to an extension 18 of each arm 15 to urge the roller 14 into contact with the roller 6.
Patent GB-1502575-A (GB)
Title: Bayonet joint between two electrically conductive components
IPC: H01H85/62
Filed: 1976-09-15
Abstract: 1502575 Two-part couplings; cartridge fuses H SCHURTER AG 15 Sept 1976 [21 Oct 1975] 38115/76 Headings H2E and H2G In a bayonet joint between two electrically conducting members, one member has a spring to bear against the other to ensure that reliable electrical contact is maintained when the members are not fully engaged. The spring 73 may be integral with one of the members, Fig. 4, being depressed on insertion of the mating member 90. The members may be of the same diameter, with interengaging hooks, Fig. 4, or of different diameters interfitting, with projections engaging in slots (Figs. 7, 9, not shown). In Fig. 11 the spring 730 bears on the side of the projecting hook 800. The device may be used in cartridge fuse holders or lampholders.
Patent GB-833298-A (GB)
Title: Fluid operated door actuating mechanism
Inventor: HUBBELL HARVEY
IPC: E05F15/04
Filed: 1957-12-09
Abstract: 833.298. Door operating appliances; remotely operated fastenings. HUBBELL Inc., H. Dec. 9, 1957, No. 38241/57. Classes 44 and 65(1) A door actuating mechanism includes fluid operated means for moving the door and other means comprising a pair of pivotally connected levers located over a master cylinder which is connected to the fluid operated means, the application of pressure to the levers causing a flow of fluid from the cylinder to cause the fluid operated means to first unlatch the door and then open it. The master cylinder comprises a fluid filled bellows 53 resting on a base member 52 to which are pivoted two channel shaped levers 55, 56 loosely pivoted together at 58, the arrangement being covered with a flexible mat 60 and disposed as a treadle at the approach to the door. Pressure on the mat by an approaching person causes fluid to pass along the pipe 36 to a passage in a housing 27 at one end of door operating cylinder 20 which is pivoted at its ends to the door 10 and to the door frame 12. From the passage the fluid passes both to a cylinder 40 to release the door latch 15 and to the cylinder 20 to open the door. Springs 59 return the levers 55, 56 to their unloaded position when the person has moved past the treadle, and springs 44, 61 respectively then close the door and reset the latch as the fluid returns to the bellows, the return flow from the door operating cylinder being diverted by a check valve 30 in the housing to flow past a restricting valve 35 which controls the closing speed of the door.
Patent GB-1133365-A (GB)
Title: Mercaptan containing adducts, method therefor and products thereof
IPC: C08G18/38
Filed: 1966-08-25
Abstract: 1,133,365. Mercaptan group containing polyurethanes; epoxy resins. THIOKOL CHEMICAL CORP. 25 Aug., 1966 [31 Aug., 1965], No. 38256/66. Headings C3B and C3R. A polymercaptan group containing polyurethane is prepared by reacting a mercaptoalcohol and a polyisocyanate, at least one of which reactants is polymeric in nature, at room or an elevated temperature in the absence of alkaline substances and in such quantities that the ratio of isocyanate to hydroxyl groups initially present is from 1 : 1 to 5 : 1. Suitable mercaptoalcohols are mercaptoalkanols especially 2-mercaptoethanol, mercaptoalkaryl alcohols and those of the formula (HS) b -R-(OH) c  wherein b and c are positive integers and R is polymeric in nature, e.g. polyalkylene, polyether, polyester, polyalkylene-polysulphide or polysiloxyl and wherein the carbon chains may be interrupted by sulphur or oxygen atoms, olefinic groups and/or urethane linkages. The polyisocyanates may be aliphatic, aromatic or alkaryl in nature but are preferably polyurethane prepolymers prepared by reacting a stoichiometric excess of a monomeric diisocyanate with hydroxyl containing polyesters, polyethers, polythioethers, polyalkylene polysulphides and/ or polysiloxanes. The reaction may take place in the absence or presence of an acid and if desired in the presence of a solvent. Curing of the polymers may take place by reaction with (a) oxidizing agents to form larger molecules joined by disulphide linkages or (b) polyepoxides to form polythioether linked polymers with pendant hydroxyl groups. Suitable oxidizing agents to be used in (a) are inorganic oxides, inorganic and organic peroxides, inorganic oxidizing agents such as chromates, dichromates, chlorates, borates and nitrates and organic oxidizing agents such as nitrobenzenes, nitrotoluenes and oximes and suitable epoxy compounds to be used in (c) are epoxidized polybutadienes, essentially linear monomeric diepoxides, bisphenol A/epichlorohydrin reaction products, cycloaliphatic group containing epoxy compounds, resorcinol diglycidyl ether type resins, epoxy novolak resins and epoxidized fatty acid resins.
Patent GB-1190706-A (GB)
Title: Non-Electric Plating on Crystalline Polyolefins
IPC: C08L23/02
Filed: 1968-08-09
Abstract: 1,190,706. Polyolefin compositions. SUMITOMO CHEMICAL CO. Ltd. 9 Aug., 1968 [11 Aug., 1967], No. 38289/68. Heading C3P. [Also in Division C7] Compositions suitable for non-electric plating comprise a crystalline polyolefin, at least 0À5 weight per cent of inorganic filler and at least 2 weight per cent of an elastomer based on the weight of the polyolefin, the filler and elastomer constituting 2À5 to 40 weight per cent of the composition. The polyolefin may be polypropylene, polyethylene or an ethylene/ propylene or ethylene/butene copolymer. The filler may be carbon black, silica, clay, kieselguhr, glass fibre, asbestos, talc, mica, calcium carbonate, titanium dioxide, zinc oxide, alumina or magnesium carbonate. The elastomer may be a polybutadiene, styrene/butadiene, acrylonitrile/butadiene, butyl, ethylene/propylene, ethylene/propylene/diene or ethylene/ vinyl acetate elastomer. The compositions may also comprise conventional stabilizers and colorants. Examples describe the plating of articles made of compositions based on polypropylene, polyethylene and propylene/ethylene copolymers.
Patent GB-1141714-A (GB)
Title: Method of forming a square or rectangular bottom bag
IPC: B65D30/18
Filed: 1966-08-30
Abstract: 1,141,714. Plastics bags. E. W. P. REICHE, and E. SYGUSCH. 30 Aug., 1966 [11 Oct., 1965], No. 38690/66. Heading B8K. A flat plastics container Fig. 1, having openings A-A in each lower corner to facilitate folding, is formed into a square or rectangular bottom bag, Fig. 4, having triangular flaps 7, 7<SP>1</SP>, the walls of which are glued or heat sealed together and either cut off or folded and sealed against the side 10 or against the bottom 12 of the bag.
Patent GB-1397953-A (GB)
Title: Rotary electrical machine having an electronic comutator
IPC: H02P6/20
Filed: 1972-08-18
Abstract: 1397953 Control of brushless motors SIEMENSAG 18 Aug 1972 [20 Aug 1971] 38750/72 Heading H2J A brushless motor has a rotor position transmitter using Hall effect sensors which produce pulses used in conjunction with pulses produced from a voltage proportional to a parameter of the motor to control the switching of the thyristors supplying the motor. As described the Hall effect sensors (not shown), produce signals H1, H2 and H3 and inverse signals H1, H2 and H3. Signals H1 and H3 are applied to selecting circuit 1 and fed to output circuit 3 to give control pulse U1 which is fed to the corresponding thyristor (P1). Similarly, signals H2, H3, H1 and H2 are used to produce pulses U2-U6 for other thyristors. Signals H2, H3, H2 and H3 are also used to control a sawtooth generator 6 in conjunction with a generator 7 which is either speed or frequency sensitive. Capacitor C in generator 6 is charged whenever H2 and H3 or H2 and H3 are both positive and is discharged by generator 7. The output current i s  of the generator is compared with a current i v , proportional to a "shift angle", the resultant being fed to trigger circuit 8 to produce pulses U k  whose width and timing are varied by the two input signals. These pulses are fed into circuits 9 and 10 together with signals H2, H3 and H2, H3 respectively, and the outputs of circuits 9 and 10 are fed into output circuits 3 and 4 together with some of pulses H1, H1 &c. so that the control pulses U1-U6 are varied in width and phase by the measured parameters of the motor.
Patent GB-982126-A (GB)
Title: Improvements in or relating to collapsible umbrellas
Inventor: WUSTER HEINRICH
IPC: A45B19/04
Filed: 1963-10-03
Abstract: 982,126. Umbrellas. H. WUSTER. Oct. 3, 1963, No. 39042/63. Heading A4P. In a telescopic umbrella comprising telescopic stick sections 1, 2, telescopic rib section 4a, 4b, and auxiliary spreaders 7 which are hinged to main spreaders 6 and to an auxiliary runner 8 guided on the upper stick section 2, a blocking member 18 temporarily arrests upward movement of the auxiliary runner to ensure outward movement of the ribs during opening of the umbrella, the member 18 being retracted to release the auxiliary runner by downward movement of a wedge 16 connected by two ties 15 to the crown 3 which is moved downward against the action of spring 11 by the downward pull of the ribs 4 and main spreaders 6 on upward movement of the main runner 5 while the auxiliary runner is arrested. Upward movement of the crown is limited by the engagement of a pin 12 in a slot 14 in a pin 10 which guides the crown. To retract the member 18, the wedge 16 coacts with the part 17a of a spring 17 which constitutes the upper locking spring of the umbrella the edge 18b of the member 18 locking the main runner 5 in the open position of the umbrella. In modifications the locking member is positioned closer to the handle end of the stick, to arrest the auxiliary runner earlier in the opening movement, and is formed by a separate stick spring which may also lock the stick sections in extended position, or, as shown in Fig. 4, comprises a two-armed lever 30 pivoted in the upper stick tube and spring-urged to project the end 30a through an aperture in the tube to arrest the auxiliary runner 8, the lever being rotated on the pin 31 by the wedge 16 for retraction of the end 30a. In further modifications the end of the pin 10 coacts with the blocking member or the pin is integral with the wedge and is made of plastic.
Patent GB-1253600-A (GB)
Title: Control means for an electromagnetic indicator device
IPC: G09F11/10
Filed: 1969-08-05
Abstract: 1,253,600. Electromagnetic indicators. BENDIX CORP. 5 Aug., 1969 [5 Sept., 1968], No. 39184/69. Heading G4H. In electromagnetic indicator devices comprising a rotatable magnet 12 attached to an indicator drum 13, and a number of stator windings 14A-14E false readings which may be given when the magnet is to be turned through 180 degrees due to the fact that the stator coils produce no torque on the aligned magnet are eliminated by a control circuit which includes a circuit 15 for energizing one or more of the stator coils in response to binary coded decimal input signals, a pulse generator 24, 44 and logic elements 70, 71 &c. for applying timed short duration pulses to one of the complementary pairs of input leads, e.g. the "2" bit pair, which periodically displace the magnet by an amount insufficient to produce a noticeable change in the visible reading of the indicator but sufficient to allow it to be moved through 180 degrees from its original undisplaced position. The pulse generator produces complementary pulses of 0À02 seconds duration each second which are applied to any of the complementary input pairs so as to produce a deflection which is preferably less than 1 degree.
Patent GB-1247447-A (GB)
Title: Frequency comparator
Inventor: DAVIS RICHARD KENT
IPC: G01P3/60
Filed: 1969-08-05
Abstract: 1,247,447. Frequency switches. GENERAL ELECTRIC CO. 5 Aug., 1969 [28 Aug., 1968], No. 39199/69. Heading H3A. A frequency switch for producing an output whenever the frequency of an input signal is below a reference frequency comprises: a pair of signal channels 18, 22 both receiving the input signal; means 16, 17 in one of the channels resonant at the reference frequency, and responsive to input signals below the reference frequency to produce a signal 180 degrees out of phase from the signal in the other channel; and a square loop cone transformer T having differentially connected input windings 20A, 20B, each receiving the output from one channel. If the input frequency is below the reference frequency, the outputs from the two channels combine to close switch 25C. At frequencies above resonance the two outputs cancel and switch 25C releases.