baber/WOPTO huggingface dataset:
Patent GB-879133-A (GB)
Title: Derivatives of polysaccharides which are soluble or dispersible in cold or hot water
Inventor: STRATING JAN
IPC: C08B31/08
Filed: 1958-11-24
Abstract: Polysaccharide derivatives are obtained by reacting a polysaccharide which is soluble or dispersible in cold or hot water with a sultone in the presence of an alkaline substance. The sultones may be 1, 3-propanesultone, 1, 4-butanesultone, mixtures of isomeric butanesultones, benzylsultone and tolylsultone; preferably, g -sultones are used.  The polysaccharide may be starch in its natural form, or dextrinated, acid-modified, thin-boiling, oxidized, etherified, or esterified starch, or amylose or amylopectin; specified starches are those of corn, wheat, potato, tapioca, waxy corn, sago, or rice.  Natural plant hydrocolloids such as gum arabic, gum tragacanth, carob gum, guar gum or alginates may also be used. The sultones may be reacted with the air-dry polysaccharide and the product used without further processing, or reaction may be effected in suspension or solution in a liquid and the product dried, e.g. by passing over a heated rotating cylinder.  The resulting polysaccharide ether sulphonic acids and salts may be used as textile sizes, and for paper coating and sizing, as protective colloids in oil well drilling muds, and as adhesives.  In a typical Example (No. 1) 2,000 parts, by weight, of potato starch, 3,000 parts of water and 120 parts of NaOH were mixed at 60 DEG -70 DEG C. and 360 parts of g -propane sultone added over a period of 15 minutes and then the mass allowed to stand for 30 minutes.  The resulting product containing the sodium salt of starch propane sulphonic acid was pressed on a heated rotated drum and then ground.
Patent GB-978229-A (GB)
Title: Improvements in or relating to semi conductor devices
IPC: H01L21/00
Filed: 1962-10-05
Abstract: 978,229. Semi-conductor devices. SIEMENS & HALSKE A.G. Oct. 5, 1962 [Oct. 9, 1961], No. 37706/62. Heading H1K. In forming a PN junction a solid pellet punched from a foil of alloying material is impaled on a needle by the punch and the impaled pellet placed on a semi-conductor body and heated to cause alloying. In a typical example the pellet, which is of gallium-indium is impaled on a needle with a pointed or truncated conical tip and placed in an alloying chamber (Fig. 3) through which a flow of reducing gas is maintained. As shown, the semi-conductor body 9 and pellet 4 are heated before being brought into contact by heater 10 and 7 respectively to remove oxide layers. On subsequent contact the pellet alloys immediately with the body and the needle is withdrawn. Alternatively only the pellet or the body is heated before contact with the other. If the junction is to be a transistor emitter an aluminium needle is used.
Patent GB-1118100-A (GB)
Title: Process for the preparation of isocyanide dichlorides
Inventor: ANDERS BERTRAM
Filed: 1966-08-23
Abstract: The invention comprises aroxy isocyanide dichlorides of the general formula <FORM:1118100/C2/1> in which Ar represents an aromatic radical which may be substituted, e.g. by one or more phenyl, alkyl, halogenoalkyl, nitro or cyano groups or halogen atoms.  They may be prepared by chlorinating an aroxy-acetyl isothiocyanate of general formula <FORM:1118100/C2/2> at a temperature in the range from -30 DEG  to +60 DEG  C.  Among starting materials mentioned are those in which Ar is phenyl, 4-chloro-, 4-bromo-, 4-iodo-, 4-fluoro-, 4-trifluoromethyl-, 4-cyano-, 2,4-dichloro-, 2,4-dibromo-, 2,4-difluoro-, 2,4-diiodo-, 2,4,5-trichloro, 2,4,6-tribromo-, pentachloro-, 2,4-dinitro-, 2-methyl - 4 - chloro-, 2 - ethyl - 4 - chloro-, 2-bromo - 4 - tertiarybutyl - 2 - amyl - 4 - fluoro-, 4-methyl-, 4-amyl-, 4-tertiarybutyl- and 4-phenyl-phenyl groups, and 1-naphthyl, 1-chloro-2-naphthyl and 2,4-dichloro-1-naphthyl groups.
Patent GB-1521317-A (GB)
Title: Stacking apparatus for flexible sheets
IPC: B65H29/24
Filed: 1975-09-16
Abstract: 1521317 Stacking DE LA RUE CROSFIELD Ltd 14 Sept 1976 [16 Sept 1975] 37988/75 Heading B8R A stacking apparatus for on-edge stacking comprises a stack support 8, end plate 7, a vacuum transport drum 5 and a separation device 12, which moves along on an endless belt 10 on pulleys 16, 18 in front of the forming stack in advance of an oncoming sheet to allow the sheet clearance. End plate 7 aligns the stack and a yieldable pressure plate (9), Figs. 2-4 (not shown), allows the stack to move as it grows and as device 12 moves across it. Preferably two devices 12, 13 are used. Vacuum ports 4 on rotating drum 5 may be used to move the sheets and when in the position of Fig. 1. The vacuum is switched off and blowers 37, 38 and a sprung arm 30 assist in guiding the sheet to the stack.
Patent GB-326895-A (GB)
Title: An improved clamp for connecting tubular or other bodies
IPC: F16L3/24
Filed: 1928-12-29
Abstract: 326,895. Sargeaunt, L., (Executrix of Sargeaunt, A. 0.). Dec. 29, 1928. No Patent granted (Sealing fee not paid). Scaffolding.-A clamp for joining poles or rods together at various angles consists of band clips 13 to embrace one member a and a plate 17 having a V-shaped projection 18 and a flexible band member 22 to embrace the other member. The plate has angular adjustment with respect to the clips by means of pins and slots and the V-shaped recess is toothed to increase the grip. For wedge-shaped bodies, tapered washers may be provided behind the nuts 21 holding the flexible band.
Patent GB-1023783-A (GB)
Title: Process for the preparation of vinyl ethers containing epoxy groups
IPC: C08F16/12
Filed: 1962-10-10
Abstract: Vinyl ethers containing epoxy groups are made by reacting a vinyl ether, preferably in excess, with an epoxy alcohol in the presence of a salt of divalent mercury and a carboxylic acid, which in aqueous solution gives a pH 4 to 7, and isolating the epoxy vinyl ether so obtained, e.g. by distillation.  The epoxy alcohol may be mono- or di-hydric, aliphatic or cycloaliphatic and may carry halogen substituents. A polymerization inhibitor, e.g. b -naphthylamine, may be added to the reaction mixture.  In the examples the epoxy alcohol of the formula <FORM:1023783/C2/1> is reacted with divinyl ether in the presence of mercuric acetate, the epoxy ether thereby produced yielding on hydrolysis the alcohol of the formula <FORM:1023783/C2/2> In further examples, 2:3-epoxy-2-ethyl-hexanol is reacted with stearyl-vinyl ether to give 2:3-epoxy - 2 - ethyl - hexylvinyl ether, 2 - methyl - 4:5 - epoxy - cyclohexylmethanol with ethylvinyl ether to give 2-methyl-4:5-epoxy-cyclohexyl-methyl-vinyl ether, 2:3-epoxypropanol-1 with ethyl vinyl ether to give the 2:3-epoxy-propylvinyl ether, 1-chloro-2-hydroxy-3-(3:4-epoxytricyclo - [5:2:1:02;6] - decane - 9 - yl) - propane is reacted with ethyl vinyl ether giving the vinyl ether, epoxystearyl alcohol is converted to the vinyl ether.
Patent GB-946499-A (GB)
Title: An improved machine for profiling the ends of pipes or the face of pipe flanges
Inventor: REEKIE DAVID GLADSTONE BALFOUR
IPC: B23B5/16
Filed: 1961-10-27
Abstract: 946,499. Drilling; turning. DAVID REEKIE & SONS Ltd. Oct. 19, 1962 [Oct. 27, 1961], No. 38552/61. Headings B3B, B3C and B3T. A machine for profiling pipe ends comprises a spindle 12 supporting a mandrel 10 for insertion into a pipe 11 and journalled in a sleeve 13 carrying a tool 15, a motor-driven worm meshing with a worm-wheel 16 splined on the sleeve, and manually-operated means 42 for feeding the sleeve. Rotation of the feed-screw 42 feeds the tool as it is rotated by the air motor 33. The tools may be replaced by others to cut a groove in the end-face of a flange.
Patent GB-834593-A (GB)
Title: Improvements in or relating to thermocouples
Inventor: GOLDSMID HIROSHI JULIAN
IPC: H01L35/16
Filed: 1956-12-18
Abstract: A material suitable for use in thermocouples (see Group XXXVI) has the constitution BimSbnTepSeqSr where n = 0-1.8, q = 0-.4 and r = 0-24, subject to the conditions that m + n = 2, p + q + r = 3, 3n + 2q + 2r = .03.  Controlled amounts of impurities such as iodine, bromine, chlorine, tellurium and lithium, or lead, cadmium and bismuth may be added to the material.  One such material consisting of Bi1.59Sb.41Te3 doped with 0.18% by weight of iodine is made by placing appropriate amounts of bismuth, antimony, tellurium and iodine in a silica bomb, evacuating the bomb to less than 10-5mm. of mercury over a fixed period of time, then sealing the bomb and heating to 900 DEG C. for at least 3 hours to react the materials. After cooling the material is loaded in a silica boat, and melted by induction heating in an inert atmosphere to form an ingot which is finally subjected to a single pass zone melting process in a flow of inert gas.  Where impurities other than halogens are used or in the absence of impurities the above method of preparation is modified insofar as the period of evacuation is non-critical and in that the single pass zone melting step is replaced by a reverse pass zone melting.  Other specific materials are listed in Table I in the Specification.
Patent GB-1476856-A (GB)
Title: Railway vehicle or other vehicle wheel brake spring actuator
IPC: F16D65/28
Filed: 1975-09-22
Abstract: 1476856 Spring brake actuators SVENSKA AB BROMSREGULATOR 22 Sept 1975 [23 Sept 1974] 38744/75 Heading FID In a spring brake actuator which has an automatic slack adjuster of known type between the piston-rod 5 and a brake lever 7, transmission means 8, also of known type, are provided between the piston 1 and rod 5 which connect the two together when the piston is opening urged forwards and can enable the piston to return alone, and automatically reconnect the piston 1 and rod 5 after the piston has been returned under the action of fluid pressure Specifications Nos. 1439087 and 1447202 are referred to.
Patent GB-1063967-A (GB)
Title: Brush construction
IPC: A46B13/00
Filed: 1964-06-12
Abstract: 1,063,967. Rotary brushes. OSBORN MANUFACTURING CO. June 12, 1964 [June 20, 1963; April 28, 1964], No. 38784/66. Divided out of 1,063,966. Heading A4K. In a method of making ring brushes by forming a channel section ring from a sheet metal cylinder, the cylinder has an integral flange 5 of folded metal, to prevent it from contracting radially as the wall of channel 4 is bent up. The rims of ring 7 are simultaneously folded together, causing it to contract radially and clamp the bristles 2 against the base of channel 4. An adaptor (Figs. 6 and 7, not shown) is stamped from sheet metal and used to mount the brush section on an arbor. The sections may be secured together by locking strips (Fig. 9, not shown).
Patent GB-1017216-A (GB)
Title: Process for treating cellulosic material and product thereof
IPC: D06M13/11
Filed: 1962-10-15
Abstract: Cellulosic materials are creaseproofed by cross-linking the free hydroxy groups of the cellulosic material with a cross-linking agent comprising epichlorohydrin or a compound which is converted to epichlorohydrin in the presence of a strong base which has a pH of at least 10 as a 1% by weight aqueous solution, the cross-linking reaction being conducted while the material has uniformly distributed therein, calculated on the total weight of fabric, 1-15% total moisture and from 0.25% to (4R + 2)% strong base, calculated as NaOH, in which R is the number of hydroxyl groups of the NaOH consumed by the cross-linking agent during the cross-linking reaction, and the material containing moisture, strong base and cross-linking agent being maintained in a desired configuration at a temperature up to 100 DEG C. until the cross-linking reaction has taken place.  The strong base may be sodium or potassium hydroxide, trimethylphenyl ammonium hydroxide, an alkali metal sulphide or an alkali metal silicate, and suitable cross-linking agents which are converted to epichlorohydrin in the presence of the strong base are 1, 3 dichloropropanol-2 and 2, 3-dichloropropanol-1.  The fabric may be treated with an emulsion comprising the cross-linking agent, strong base and water or the cross-linking agent may be applied separately from the water and strong base in either order.  The fabric is preferably a 1-4% by weight aqueous solution of NaOH, squeezed to a solution pick up of 30-130% by weight to provide 0.5-6% by weight NaOH on the fabric, dried at a temperature not exceeding 100 DEG C. to a moisture content of 1-15%, treated with the cross-linking agent which may be mixed with methanol and maintained in a polyethylene encased smooth roll at a temperature up to 100 DEG C. while the cross-linking reaction takes place.  The fabric may be treated with a polyethylene softener either before or after cross-linking and the treating solution may also contain starch.  Woven, knitted or non-woven fabrics comprising cotton, linen, jute, flax, viscose rayon, including polynosic rayons, cellulose ester or cellulose ether fibres alone or in admixture with polyester, nylon or polyacrylic fibres may be treated.
Patent GB-1381050-A (GB)
Title: Method and means for regulating the power output torque of a hot gas engine
IPC: F02G1/05
Filed: 1972-08-22
Abstract: 1381050 Hot gas engines UNITED STIRLING (SWEDEN) AB & CO KB 22 Aug 1972 38970/72 Heading F1S The invention relates to a method of controlling the power output torque of a hot gas engine comprising the steps of connecting the working gas spaces of the engine to dead volume chambers 9, one only being shown, through closable channels 10 and either fully closing the channels to obtain maximum torque or opening the channels and adjusting the resistance to flow of gas through the channels in order to obtain torques less than the maximum. According to the invention the controlling sequence comprises the steps of initially opening the channels to their fullest extent and then continuously increasing the resistance to flow of the gas through the channels until the desired power output torque is achieved and ensuring that, except for fully closing the channels, it is not possible to increase the resistance to flow of gas through the channels beyond a predetermined maximum resistance, this predetermined maximum resistance being that degree of resistance which would cause the engine to operate with the maximum braking effect if the engine were running at its maximum permissible speed. The control is effected with the aid of a valve 11 which is operated by a cam which is not shown.
Patent GB-1507568-A (GB)
Title: Video tape recording and/or reproducing apparatus
IPC: G01N25/68
Filed: 1975-09-23
Abstract: 1507568 Measuring humidity SONY CORP 23 Sept 1975 [1 Oct 1974] 38972/75 Heading G1N [Also in Division G5]  A video tape recording and/or reproducing apparatus has a tape transport system including a guide drum 10 to the surface of which is mounted a humidity sensor 1 of a type having a pair of electrodes 5a, 5b on an insulator film 2. The surface of the electrodes is roughened (e.g. by sandblasting or chemical treatment) and the surface of the insulator is roughened in the gap 2b between the electrodes whereby moisture drops precipitated on to the sensor surface instead of forming into individual spheres as P in the prior art are broken up to bridge the electrodes as at P' even for a small amount of precipitation. It is stated that the same effect may be achieved by roughening only the surface of the electrodes or only the surface of the insulator film in the gap between the electrodes. The sensor I is incorporated in the feedback circuit of an oscillator 33 e.g. on astable multi-vibrator from which the output is fed to a peak hold circuit 34, 35 to provide a D.C. voltage representing humidity. This voltage is applied to a Schmidt Trigger 37 to actuate a warning lamp 41, and relays 39, 40 in the power supply to the tape and head driving motors respectively of the video tape recorder, at a given level of humidity.
Patent GB-389899-A (GB)
Abstract: 389,899. Mechanical make-and-break switches. ERICSSON TELEPHONES, Ltd., 67, Kingsway, London, and WILMAN, C. W., 7, Grange Avenue, Beeston, Notting- ham. Nov. 4, 1931, No. 30518. [Class 38 (v).] Co-operating electric switches for use in a counting system comprise respectively drums DA, DB loosely mounted on a shaft SH and rotated step by step in opposite directions through ratchet wheels WA, WB. The drums carry spring-pressed wiper studs SP and S respectively, current being led thereto through slip rings CR or concentric rings disposed on the non-adjacent ends of the drums.
Patent GB-1528184-A (GB)
Title: Safety belt reel with adjustable locking mechanism
IPC: B60R22/40
Filed: 1976-09-15
Abstract: 1528184 Safety belt reels BRITAX (WINGARD) Ltd 15 Sept 1976 [24 Sept 1975] 39107/75 Heading A3V A safety belt reel for mounting in different vehicles has an inertia-responsive ball 5 in a dished support 4 adjustably mounted on an arcuate track 11 centred on the axis of the ratchet wheel. Vehicle acceleration causes ball 5 to push pawl 7 to lock ratchet wheel 9 on belt shaft 10. Track 11 is smooth and support 4 has a toothed portion 12 engaging an adjusting screw 13. In Figure 2 (not shown) track (20) is toothed and support has a toothed element 21. A further plane of adjustment may be provided.
Patent GB-1254758-A (GB)
Title: Improvements in and relating to the catalytic reforming of gaseous hydrocarbons under pressure
IPC: C01B3/38
Filed: 1969-08-05
Abstract: 1,254,758. Making combustible gas. SOC TECHNIQUE D'ENTREPRISES CHIMIQUES. 5 Aug., 1969 [6 Aug., 1968], No. 39215/69. Heading C5E. A mixture of normally gaseous hydrocarbons and inert gas is employed as the feedstock in a catalytic reforming process which may include steam and/or CO 2 . The feedstock is expanded and fractionally distilled in a column 3, the liquid fraction 4 being heated and regasified at 32 for delivery at 25 to the reformer 6 which is heated by burners 10 employing as fuel the gaseous fraction from the column which has been expanded at 9 and which contains most of the inert gas initially present. The feed is cooled in heat exchangers E1 ... E4 by the fraction 4 before entering the column. Recycling of liquid occurs at 19, 27. In a specific embodiment, the feed comprises mainly methane and nitrogen, with some C 2  to C 4  paraffins and CO 2 . This mixture, minus the nitrogen and about 1/3 of the methane emerges at 22 for mixing with steam and CO 2  at 12, 13. Methane and nitrogen go to the burners, and a hydrogen-rich gas is obtained at 7.
Patent GB-1247492-A (GB)
Title: Improvements in apparatus for monitoring the impedance between electrodes
Inventor: MAYNARD DOUGLAS EDWARD
IPC: A61B5/276
Filed: 1967-10-31
Abstract: 1,247,492. Monitoring inter-electrode impedance. NATIONAL RESEARCH DEVELOPMENT CORP. Oct. 29, 1968 [Oct. 31, 1967; Feb. 19, 1968], Nos. 39293/70 and 39294/70. Divided out of 1, 243, 786. Headings G1N and G1U. Apparatus for monitoring the impedance between electrodes 10, 11, and particularly for detecting open-circuit therebetween, comprises a capacitor 24 across the electrodes, an oscillator 21 supplying a voltage to the capacitor and to a resistor 25 representing inter-electrode impedance, and a phase comparison circuit which compares the phase of a signal from the oscillator with that across the capacitor. A frequency selective amplifier 30 separates the signals from the oscillator 21 and posses them via dipping amplifier 31 to a first input of AND-gate 32. The second input of the gate is fed with signals from the amplifier 21 via clipping amplifier 33 and a phase inverting circuit so that, provided the impedance of resistance 25 is low compared with that of the capacitor at the frequency of the oscillator 21, the two inputs to the gate will be in antiphase and there will be zero voltage from the smoothing network 34. However an open circuit between the electrodes produces gate input signals in phase quadrature and the network produces an output of V volts. Further the bias of the dipping amplifier 31 is adjusted so that, in the absence of an input signal to it, caused by circuit failure in amplifier 13 it causes the first input to the gate to be "on". Thus the gate passes the whole of the signal from the dipping amplifier 33, yielding on output of 2V from the smoothing network. In a modification a 90 degree phase shift is incorporated in amplifier 30. The apparatus is applied to monitoring the impedance between skin-contacting electrodes providing signals to an EEG as described in Specification 1,243,786 to which reference is made, particularly for determining whether the electrodes have become detached from the patient.
Patent GB-936273-A (GB)
Title: Improvements in or relating to vehicle suspension systems
Inventor: DICKINSON RONALD SIDNEY
IPC: B60G15/12
Filed: 1958-12-06
Abstract: 936,273. Vehicle suspension systems. ARMSTRONG PATENTS CO. Ltd. Nov. 30, 1959 [Dec. 6, 1958], No. 39385/58. Addition to 867,514. Class 108(2). A vehicle suspension comprises a pneumatic spring 20, Fig. 1, and a hydraulic shock absorber 18 connected to and controlling hydraulic means 32 to vary the spring 20 so as to maintain constant vehicle height. The springs 20 are connected by conduits 26 to the space beneath a diaphragm 30 having its upper side connected by conduits 34 to the shock absorbers 18 which are similar to those described in the parent Specification. A cam operated valve in each shock absorber allows it to pump liquid into the space above the diaphragm when the vehicle falls below the desired level so as to expand the springs 20 and to have liquid returned from the space to a reservoir within its casing when the vehicle rises. When the vehicle is at the desired level repeated momentary opening of the valve keeps the pressure above the diaphragm 30 constant. In Fig. 2 each pneumatic spring 36 has a number of superposed chambers separated by imperforate plates and carries a hydraulic ram 38 controlled through a conduit 40 from the shock absorber 18. A spring similar to that shown at 36 may have its lower end connected by a conduit to the shock absorber so that it is partly filled by hydraulic fluid while in other constructions the piston or cylinder of a ram is connected to the lower link 10 and the ram piston or a diaphragm separates the hydraulic fluid from the pneumatic spring. In Fig. 6, the shock absorber 18 has a separate reservoir 19 and is connected to a housing 68 containing a piston 70 and a diaphragm 72. The space beneath the latter is connected to the pneumatic spring 84 so that the small high-pressure movements of the hydraulic fluid are transformed into large volume changes of the lowpressure fluid in the spring.
Patent GB-993095-A (GB)
Title: Water-insoluble monoazo dyestuffs
IPC: C09B29/32
Filed: 1963-10-07
Abstract: The invention comprises water-insoluble monoazo dyes of formula <FORM:0993095/C4-C5/1> wherein R is a phenyl radical which may be substituted by halogen atoms or alkyl, alkoxy, nitro and/or sulphonamide groups and "Acyl" is an aromatic or aliphatic acyl radical which contains no water-solubilizing groups.  The dyes are prepared by coupling an appropriate diazotized aminobenzene with a 1-acetoacetylamino-4-acylamino-benzene. The dyes are used as pigments in the coloration of lacquers, ink, resins and synthetic fibres in the mass and in pigment printing and give yellow to orange shades. The preparation of the dyes is described in examples.