baber/WOPTO huggingface dataset:
Patent GB-466638-A (GB)
Title: Manufacture of indigoid dyestuffs
IPC: C09B7/12
Filed: 1936-07-10
Abstract: Unsymmetrical indigoid dyestuffs of the 2 : 2<1> series are prepared by condensing 8-halogen-1 : 2-naphthothioindoxyl with a reactive 2<1>-derivative of a 2 : 1-naphthothioindoxyl or by condensing a reactive 2<1>-derivative of an 8-halogen-1 : 2-naphthothioindoxyl with a 2 : 1-naphthothioindoxyl.  Dyeings and prints having a blackish brown tone are obtained on wool, silk, cotton and regenerated cellulose.  In examples: (1) 8-chlor-1 : 2-naphthothioindoxyl is condensed with the p-dimethylamino-2<1>-anil of 2 : 1-naphthothioindoxyl; (2) p-dimethylamino-2<1>-anil of 8-chlor-1 : 2-naphthothioindoxyl is condensed with 2 : 1-naphthothioindoxyl; (3) 8-brom-1 : 2-naphthothioindoxyl is condensed with the p-dimethylamino-2<1>-anil of 2 : 1-naphthothioindoxyl; (4) cotton, regenerated cellulose or acetate artificial silk is printed with a paste containing the dyestuff of example 1 and stock thickening.  8 - Brom - 1 : 2 - naphthothioindoxyl is prepared by condensing 1-mercapto-8-bromnaphthalene, which is obtained from the corresponding 1-sulphochloride by reduction, with chloracetic acid, converting the resulting 8-bromnaphthalene 1-thioglycollic acid into its sulphochloride and effecting ring closure by means of aluminium chloride.
Patent GB-440437-A (GB)
Title: Improvements in or relating to means for packing finely divided materials
IPC: B65B61/24
Filed: 1934-06-29
Abstract: 440,437. Packeting-machines. NAYLOR, W. H., 20, The Drive, Adel, and DAY & SONS, Ltd., J., Beeston Royds Works, both in Leeds. June 29, 1934, No. 19266. [Class 94 (i)] In order to compress packets of flour and the like to a uniform shape, they are subjected to a gradually increasing constriction during travel through the apparatus. In the form shown in plan in Fig. 2, two flat chain link belts 21, 22 travel continuously or intermittently, and receive between them a succession of packets 23, which are gradually, compressed owing to the gradually decreasing space between the belts. Flat or curved lower and upper plates 24, 25, Fig. 5, may be provided and may taper from plane to curved surfaces or vice versa. Plates 43 press the chain links against the package, and may be adjustably or resiliently mounted. In a modification, belts are used to effect the compression and are held in position by rollers. In another form, Fig. 12, belts 46, 47 engage the tops and bottoms of the packets and plates 44, 45, which are arranged to present a converging passage, are opened and closed by a cam 50. In further modifications, top and bottom plates without belts may be used, or one belt and one plate, or three belts and one plate, or four belts.
Patent GB-1019026-A (GB)
Title: Bracket for service footways
IPC: E04G3/18
Filed: 1963-05-15
Abstract: 1,019,026. Scaffolding. ETABLISSEMENTS OUTINORD. May 15, 1963 [May 16, 1962], No. 19276/63. Heading E1S. A catwalk 11 for workmen is supported on brackets comprising a bar 1 having jaws 3, 4 engaging either side of a floor 13. The lower jaw 4 is longer and is an extension of the bar 1. The jaw 3 is mounted on uprights 14 which may be slidable between angle irons 15 on the bar 1 so that the jaw 3 may be adjusted to or from the jaw 4 and fixed by a bolt 17 in holes in the uprights and the bar 1.
Patent GB-969845-A (GB)
Title: Ductile cast iron brake rotor
IPC: F16D65/12
Filed: 1963-05-15
Abstract: A cast iron, suitable for making a brake rotor, comprises: 3.25-3.75% total carbon 2.00-2.60% silicon 0.20-0.60% manganese 0.16% maximum phosphorus 0.02% maximum sulphur 0.50-1.50% nickel 0.10-0.50% copper the balance being iron. The cast iron is annealed by heating at 1650 DEG F., cooling at the rate of 50  DEG F. per hour to 1200  DEG F. and then air cooling to room temperature. Specification 847,120 is referred to.
Patent GB-558768-A (GB)
Title: Improvements in screw conveyors
IPC: B65G33/00
Filed: 1942-06-15
Abstract: 558,768. Screw conveyers. HOBBS, E. M., and NOVADEL, Ltd. June 15, 1942, No. 19431/43. Divided out of 558,746. [Class 78 (i)] A screw conveyer, particularly for feeding powdered material, comprises a wire 1 bent into the shape of a helix and enclosed within a casing 3 having inlet and outlet openings, means being provided for varying the pitch of the helix. As shown, the means comprises an adjustable screwed plug 10 mounted in a bracket 9 in a discharge hopper or outlet duct 8 into which material is discharged on rotation of the conveyer, the plug serving as a bearing for a spindle 11 extending from a plate 12 fixed to the end of the conveyer. The casing 3 is situated at the base of a feed hopper from which material is fed to the conveyer through an opening in the upper part of the casing.
Patent GB-1510511-A (GB)
Title: Self-centring hubs for discs
IPC: G11B17/035
Filed: 1975-05-08
Abstract: 1510511 Securing discs on Shafts SYCOR Inc 8 May 1975 [21 June 1974] 19432/75 Heading F2U A disc 40 is centred and then clamped on a hub 12, the centring being by elements 22 which are movable relative to the hub axis to centre the disc 40 before a clamping member 24 clamps the disc 40 against a surface 38 of the hub. In the embodiment shown the elements 22 are separate and are biased by a resilient ring 56 to put their outer surfaces 49b on a circumference smaller than that of a central aperture 60 of the disc 40. When the clamping member 24 is moved towards the hub 12 tapered surfaces 62, 66 engage to move the elements 22 radially outwards to centre the disc 60. The elements 22 may be of nylon and the outer portion of each element 22, may resiliently engage the disc 60. The elements 22 mybe projections on a member formed in one piece (Fig. 5, not shown). As shown in Fig. 2 the clamping member 24 is urged resiliently by a spring 36 through a thrust bearing and the disc 40 is within a disc receiver 26. The disc 40 may be a magnetic recording disc.
Patent GB-1235051-A (GB)
Title: Improvements in or relating to pressure sensitive adhesive compositions
Inventor: SIROTA JULIUS
IPC: C09J157/04
Filed: 1969-04-16
Abstract: 1,235,051. Hydrolysing maleic anhydride copolymers. NATIONAL STARCH & CHEMICAL CORP. 16 April, 1969 [13 May, 1968], No. 19442/69. Heading C3P. The properties of a pressure sensitive adhesive composition which is a solution in a hydrophobic organic solvent of a copolymer of maleic anhydride with at least one polymerizable comonomer selected from alkyl esters of acrylic and methacrylic acids containing a maximum of 12 carbon atoms in the alkyl groups, vinyl esters, vinyl ethers, vinyl halides, vinylidene halides and acrylonitrile, said copolymer containing from 1 to 25% of maleic anhydride moieties based on the weight of the copolymer, and having a Williams' plasticity value of from 1-50 to 5À50 are improved by completely hydrolysing to maleic acid groups the anhydride groups of at least 15% of the available maleic anhydride moieties of the copolymer by mixing the adhesive composition with water and at least one organic liquid selected from methanol, ethanol, n-propanol, acetone, 1,4-dioxane, methyl ethyl ketone, diacetone alcohols and glycol ethers, the organic liquid being present in an amount of from 10 to 75 parts by weight per 100 parts by weight of dry copolymer, and the water being present in an amount, calculated stoichiometrically, sufficient to hydrolyse at least 15% of the available maleic anhydride moieties. In the examples vinyl acetate, ethyl acrylate, 2- ethyl hexyl acrylate and maleic anhydride are copolymerized in the presence of azobisisobutyronitrile, methylene chloride, ethyl acetate and toluene and the lacquer hydrolysed using water, isopropanol, ethanol and acetone. The copolymer is mixed with apolyvinyl ether plasticizer and crosslinked with a butylated melamine.
Patent GB-166559-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B57/10
Filed: 1921-07-19
Abstract: 166,559. Michel, H. July 19', 1921. Two-stroke-cycle engines; driving-gear. -. A single cylinder 1, secured at one side to a standard 3, and mounted at the other side upon a trunnion 5, has a pair of oppositely-moving pistons 8 carrying rollers working in tracks provided in cam discs 14. One disc bears at 15 upon the standard 3 and the other disc is secured to a shaft 6 carrying the trunnion. The grooves in the discs are designed so that the engine completes six cycles for each revolution of the driving shaft. Plates 17 are secured to the cam discs and enclose the reciprocating parts. The Specification as open to inspection under Sect. 91 (3) (a) states that the cam grooves are shaped to produce a dwell of the pistons during the scavenging periods. This subject-matter does not appear in the Specification as accepted.
Patent GB-299092-A (GB)
Title: Improvements in delivering liquids, suitable for devices for delivering measured quantities thereof
IPC: B67D7/84
Filed: 1927-07-22
Abstract: 299,092. Livesey, J. W., Fenn, A. G., and Mason, T., F. July 22, 1927. Fixed-chamber apparatus.-A cabinet has two or more delivering devices for different liquids or different grades of the same liquid, each device comprising a measuring cylinder and a separate drip compartment or tray arranged within the cabinet, the arrangement being such that the liquid drained into one of the compartments or trays is isolated from the liquids drained into the other compartments or trays. The cabinet, which may be formed of sheet metal, timber, reinforced concrete or other suitable material is, in the example shown, of approximately square section and arranged to accommodate in its upper compartment 1 delivering devices 3, arranged between diagonals of the square, for four different grades of oii, the supply pipes 4 passing through the lower compartment 2 and being connected at 5 to their respective tanks. The part 6 which closes the lower portion is formed as four separate drip trays one for each device, each tray having a drain pipe 8 and a receptacle 9 from which the drip may be filtered and returned to its appropriate tank. The upper portion is provided with transparent sliding panels 10 and near the top of the cabinet, transparent advertising panels 12 may be fitted. An electric lamp 11 in the centre of the cabinet illuminates the measuring cylinders and the stops thereon. Instead of several trays, a single tray with separate compartments may be employed.
Patent GB-1033426-A (GB)
Title: Process for obtaining 1-ú¯-butyl-3-tosylurea
Inventor: RUDNICKI ANDRZEJ
Filed: 1964-05-11
Abstract: 1 - n - Butyl - 3 - tosylurea is prepared by reacting tosylurea and n-butylamine sulphate in a non-aqueous polar solvent at 85-120 DEG C., subsequently distilling the solvent off under reduced pressure, alkalizing the residue with dilute sodium hydroxide, diluting same with water and acidifying same to a pH of between 8 and 9.5, whereby the major contaminants are precipitated, further diluting the filtrate with water in an amount sufficient to ensure a weight ratio of at least 20 parts of water to 1 part of 1-n-butyl-3-tosylurea, and further acidifying said diluted filtrate until the pH thereof falls below 5.5, whereby crystalline 1 - n - butyl - 3 tosylurea is precipitated.  The tosylurea starting material is obtained by hydrolysis of N - cyano - para - toluenesulphonamide, which in turn is obtained from tosyl chloride and calcium hydrocyanamide.
Patent GB-1286749-A (GB)
Title: Glass having high refraction, especially for fibre optical applications
IPC: C03C3/155
Filed: 1970-04-24
Abstract: 1286749 Glass for fibre optic CORNING GLASS WORKS 24 April 1970 [1 May 1969] 19757/70 Heading C1M A ThO 2 -free glass having a refractive index of at least 1À8 and a coefficient of linear thermal expansion (0-300‹ C.) of 60-70 Î 10<SP>-7/0</SP> C. comprises essentially, by weight, 25-50% La 2 O 3  15-30% B 2 O 3 , 5-30% Ta 2 O 5  and 5- 20% Nb 2 O 5 , the said constituents constituting at least 75% of the glass and the balance, if any, consisting of other compatible constituents. The glass may also contain 0-10% Al 2 O 3 , 0-10% ZrO 2 , 0-15% BaO, 0-10% ZnO, 0-3% As 2 O 5 , 0-2% P 2 O 5 , 0-2% F, 0-1% PbO, 0-1% Bi 2 O 3 , 0-5% SiO 2 , 0-5% MgO, 0-5% CaO, 0-5% SrO, and 0-5% CdO. The glass is preferably used as the core glass in a fibre optic in which said core is covered by a cladding and there is a light-absorbing portion covering the cladding. Examples of glasses for the cladding and light-absorbing layer as in Specification 1,113,229 are given.
Patent GB-184450-A (GB)
Title: Improvements in the manufacture of artificial threads, narrow ribbons, films and the like, of viscose
IPC: D01F2/08
Filed: 1922-07-21
Abstract: A spinning bath for use in the manufacture of artificial threads, films, &c. from viscose, consists of an aqueous solution of the acids obtained by sulphonating the resinous condensation products prepared by reacting with phenols on wood in the presence of acid catalysts. To the bath mineral acids may also be added, or the acid may be partly neutralized, or to the bath may be added the salts of mineral acids or of the sulphonated acids above referred to; with these baths, satisfactory results are obtained with entirely unripened viscose.  In an example, the bath contains 10-12 per cent sulphuric acid, 5 per cent sulphonated acid, and 15 per cent sodium sulphate; and a spinning speed of 50 metres and a length of bath of 50 centimetres are employed.  Specification 160,482, [Class 2 (iii), Dyes &c.], is referred to.ALSO:The sulphonic acid of the resinous product obtained by heating wood with phenols in the presence of a catalyst as described in Specification 160,482 may be used as a tanning-agent or as an addition to the precipitating bath used in the manufacture of viscose silk.
Patent GB-1421442-A (GB)
Title: Apparatus for spacing and aligning oblong articles randomly  disposed on a conveyor
IPC: B65G47/24
Filed: 1973-04-27
Abstract: 1421442 Correcting the alignment and spacing of articles on endless conveyers SIG SCHWEIZERISCHE INDUSTRIE-GES 27 April 1973 [3 May 1972] 20037/73 Heading B8A Upper and lower endless conveyers 8, and 15, are connected by an inclined shoot 13 which has a concave shape as viewed in elevational cross-section. The speed of the downstream belt 15 is greater than that of the belt 8. This arrangement has the effect of correcting the alignment of slabs of chocolate which are in irregular alignment on the (upstream) conveyer 8. This is because the leading corner of a misaligned slab sliding down the shoot, experiences more resistance that the trailing corner. Also, due to the slope of the shoot, the slab acce erates on the shoot and approaches the belt 15 at a speed which is greater than that of the latter. This tends to slow up the leading corner still more as the slab moves on to the belt 15. Due to the differential speed of the belts, the spacing between them is increased.
Patent GB-516873-A (GB)
Title: Improvements relating to bricks or blocks for general building and for furnaces
IPC: E04B2/50
Filed: 1938-07-06
Abstract: 516,873. Furnace bricks. MAKRAM, L. T. July 6, 1938, No. 20057. [Classes 51 (i) and 51 (ii)] [Also in Group X] A furnace brick or building block is furnished at one end with a projection i<4> mating with a recess i<5> at the other, the projection and recess having vertical channels g .leading into channels f in the top and bottom of the brick which' are provided with a recess i and corresponding projection. Additional vertical holes c also are provided.
Patent GB-369837-A (GB)
Title: Improved arrangements for the regulation of the sound strength on musical instruments, from which music is produced by frequency alterations of an electric current
IPC: G10H1/055
Filed: 1931-07-13
Abstract: 369,837. Electrical musical instruments. LERTES, P., 55, Kuhwaldstrasse, and HELBERGER, B., 37, Zeppelin-Allee, both in Frankfort-on-Main, Germany. July 13, 1931, No. 20078. Convention date, July 16, 1930. [Class 88 (ii).] In a musical instrument operated by electric oscillations, the frequency is controlled by a movable contact on a resistance ; the resistance element is movable as a whole so as to actuate a variable coupling to an amplifier valve, the volume being thereby controlled by the pressure exerted on the contact member. In the apparatus shown the contact member comprises a steel band 1 fixed to a block 2 ; the free end rests on a second block and is tensioned by a spring 9 and a hinged member 10. The resistance comprises a wire 4, wound on a rod mounted on a band 16 secured to the left-hand block ; the free end passes through the block 2 and is tensioned by a lever 13 and spring 15. Depression of any point of the band 1 first causes completion of the circuit of a battery 5 by a switch 6, then by contact with the resistance 4 connects the grid circuit of the oscillator valve 7 to a selected potential. Further depression actuates the lever 13 to increase the coupling of an iron-free coil 12 mounted thereon to a fixed iron-cored coil 11, these coils being connected respectively in the grid circuit of an amplifier valve 8 and in the anode circuit of the oscillator valve 7. The band 1 is covered by a leather strip 3. The coils 11, 12 may be telephone bobbins. The instrument may comprise several notegenerators with independent control means ; these may be connected through separate amplifiers to independent reproducing elements of a loud-speaker, or they may be connected to a common amplifier.
Patent GB-1163356-A (GB)
Title: Bonding of Concrete
IPC: C04B41/63
Filed: 1967-05-01
Abstract: 1,163,356. Polymeric sealant compositions. THIOKOL CHEMICAL CORP. 1 May, 1967 [17 May, 1966; 23 March, 1967], No. 20079/67. Headings C3B and C3R. [Also in Division E1] Compositions used in examples for sealing hydraulic cementitious substrates contain ingredients as follows:-(1 and 2) coal tar, a polysulphide polymer, lead peroxide, silica and carbon black; (3) coal tar, a polyepoxide, a polysulphide and tris-(dimethyl-aminomethyl)- phenol; (4) an isocyanate-terminated urethane prepolymer, dibenzoate ester of ethylene glycol, coal tar oil and 4,4<SP>1</SP>-methylene bis-(2-chloroaniline); (5) an SH-terminated polypropylene glycol polymer, coal tar oil, tris-(dimethylaminoethyl) phenol and a polyepoxide; (6) a polymethacrylate resin, naphtha, sodium zinc phosphate, a polymeric polyester, the sodium salt of a polymeric carboxylic acid, petroleum solvent, calcium carbonate, titanium dioxide, sodium polyacrylate and coal tar oil; (7) a polysulphide rubber latex, a butadiene-acrylonitrile copolymer latex, a sodium polyacrylate, the sodium salt of a polymeric carboxylic acid, calcium carbonate, titanium dioxide, chlorinated hydrocarbons and coal tar oil.
Patent GB-675979-A (GB)
Title: Purification treatment of sugar bearing solutions by ion exchange
IPC: C13B20/14
Filed: 1949-08-03
Abstract: Cation-exchange material which has been used for the purification of sugar solutions is regenerated by preliminary treatment with a spent liquor containing alkali ions which has been used for regenerating the anion-exchange material, whereby the calcium ions retained in the exchanger are replaced by alkali ions thus avoiding the clogging of the exchange material with insoluble sulphate on subsequent normal regeneration treatment with sulphuric acid.  The treatment also serves to remove organic p  colloids retained by the cation-exchanger.  Specifications 474,361, [Group IV], and 557,690, [Group VI], are referred to.
Patent GB-1465254-A (GB)
Title: Process for petroleum refining
IPC: C10G29/04
Filed: 1975-05-14
Abstract: 1465254 Distilling petroleum INST NEFTEKHIMICHE SINTEZA IM AV TOPCHIEVA AKAD NAUK SSSR NOVOGORKOV NEFTEPERERABATYVAJUS ZAVOD IM XXIV SIEZDA K PSS and MOSKOV INST NEFTEKHIMICHE I GAZOVOI PROMYSHLEN IM IM GUBKINA 14 May 1975 [17 May 1974] 20233/75 Heading C5E Petroleum is refined to obtain products with a reduced content of S, N and O-containing compounds by distillation in the presence of a carbonyl compound of a transition metal. The carbonyl compound may be a volatile compound of the formula M a R x (CO) y  where M is V, Cr, Mo, W, Mn, Re, Fe, Co, Ni; a is 1-5; R is an organic ligand; x is 0-2; and y is 1 go 12. Alternatively the carbonyl compound may be a non-volatile compound of the formula where M is Ni, Co, Mn, Fe; L is a nitrogencontaining ligand; n is 2-6; m is 3 to 13; and q is 1 to 4, or of the formula QH 2 Fe 3 (CO) 11  where Q is ammonia, an ethanolamine, n-butylamine or trialkylamine. The compounds may be introduced in amount 0À02-0À2 wt. per cent and at 150-350‹ C.
Patent GB-516802-A (GB)
Title: Improvements in or relating to electrical communication secrecy systems
IPC: H04K1/02
Filed: 1938-07-08
Abstract: 516,802. Wireless signalling. STANDARD TELEPHONES & CABLES. Ltd., and ROSS, C. P. July 8, 1938, No. 20289. [Class 40 (v)] In a secrecy system in which the carrier wave is modulated by the signal frequency and by a periodically varied frequency of constant energy level, the periodically varied frequency is cut off if unmodulated by the signal frequency for a predetermined very short time, in order to prevent disclosure of the sequence of the variation of frequencies. In one embodiment illustrated by Fig. 1, a portion of the modulated frequencies are supplied to terminals 1, 2 and valve V1 is arranged so that the more positive parts of the wave input are amplified more than the less positive and negative parts. These positive peaks in the anode circuit are passed by half-wave rectifier W1 to charge reservoir condenser C4, the charge on C4 being connected to grid G3 of valve V2 through the delay network comprising rectifier W2 and condenser C5. Rectifier W2 is connected to present a high resistance to the charging current and a low resistance to the discharging current of condenser C5. During normal transmission the input is constantly varying so that condensers C4 and C5 become partly charged on the peaks and then discharge through R5 and W2 and R5 respectively when the energy level falls. If however signal frequency modulation ceases the peak value of the input at 1, 2 remains constant, condenser C5 becomes fully charged and valve V2 passes current to energize relay M which interrupts the supply of modulating frequencies to the channel. This reacts on the input 1, 2 so that condensers C4 and C5 discharge and relay M releases. This cycle is repeated until signal frequencies again appear in the input to 1, 2. In a second embodiment a valve as V1 is connected as an anode bend rectifier which is coupled to the delay network W2, C5 through a rectifier bridge.
Patent GB-1080076-A (GB)
Title: Improvements relating to gas burning appliances
IPC: F23D14/04
Filed: 1963-05-22
Abstract: 1,080,076. Gas burning appliances. BULLFINCH (GAS EQUIPMENT) Ltd., and R. K. LYNES. Aug. 21, 1964 [May 22, 1963], No. 20303/63. Heading F4T. A gas burning appliance for horticultural glass houses comprises a propane or butane gas burner located in the lower end of a substantially vertical Venturi tube 15, wherein the relative sizes and dispositions of the burner and Venturi tube are such that the propane or butane is burnt to water and carbon dioxide without significant production of carbon monoxide or aldehydes. The gas burner comprises two circular plates 5, 6, the outer plate 6 having projections 7 which support the inner plate 5 so that an annular jet is formed. Alternatively the burner comprises annularly disposed jets (not shown). The plates 5, 6 are carried by a closed pipe 8 which is supplied with gas via a jet 12 disposed between air apertures 10, and which has apertures 9 between the burner plates 5, 6. Three equally spaced lugs 13 support the Venturi tube 15 and also three rods 17 which are fixed to a lipped circular shield 18 having a suspension hook 20. The shield 18 and the Venturi tube 15 are made from sheet metal, e.g. galvanized sheet iron. A protective wire rod cage 21 depends coaxially from the burner plate 6. In Fig. 3 (not shown) the jet 12 is shown connected to a push-on connector (22) to a propane supply via an adjustment valve (23) fixed to the cage 21 and via a safety cut-off valve (25) connected to and controlled by a thermocouple tip 27.