baber/WOPTO huggingface dataset:
Patent GB-851011-A (GB)
Title: A system for the comparative measurement of the light absorption of two samples of fluid
IPC: G01J1/16
Filed: 1956-11-26
Abstract: 851,011. Photo-electric measurement of light absorption. PERKIN-ELMER CORPORATION. Nov. 26, 1956 [Nov. 28, 1955], No. 36038/56. Class 40(3). The light absorption of two samples of gas is compared by passing beams of light from a common source through the samples on to a light sensitive device and superimposing on one of the emergent beams a nulling beam which is attenuated as a function of the output of the detector, the degree of attenuation being a measure of the difference in intensities of one sample beam on the one hand and the other sample beam and the nulling beam on the other. At the same time the light absorption characteristics of the samples is equalized. Beams 11, 12 from the source S pass through gas samples in chambers 14, 15. A chopper 16 causes a sample beam 12 and a nulling beam 10 to fall together on a photo-cell 13 out of phase with a sample beam 11, a trimmer 30 having been used to reduce the intensity of beam 12 with respect to beam 11 before insertion of the sample gases. The unbalanced A.C. voltage produced by the cell 13 is amplified at 19 and demodulated at 21 to produce a signal which is passed through a filter 22 and amplifier 23 to actuate a servo-motor 24 which adjusts an attenuator 25, restoring a balance between the alternate beams (10 + 12) and (11). The phase sensitive demodulator 21 is controlled by an auxiliary voltage generator 18. The position of the attenuator is recorded at 29 by a potentiometer 27 as a measure of the absorption and thus of the comparative concentration of a component of interest in the two samples. To equalize the light absorption characteristics of the samples the pressure of the sample in chamber 15 may be increased relative to that of the other or chambers of different dimensions may be used.
Patent GB-1164949-A (GB)
Title: A Method of and Apparatus for Plating-Out in Diagnostic and Research Bacteriology.
Inventor: BELITHER WILLIAM EDWARD
IPC: C12M1/26
Filed: 1967-08-05
Abstract: 1,164,949. Method of plating-out bacteria. W.E. BELITHER. Oct.22, 1968 [Aug. 5, 1967], No.36049/67. Heading C6F. In plating-out and spreading bacterial samples on the surface of nutrient agar with a platinum loop &c., a continuous relative rotary movement is imparted between the loop and the surface. Thus, the loop may be drawn radially over the surface of inoculated agar 15 in a Petri dish 14 which is being rotated upon a turntable 10 at between 30 and 100 r.p.m. If only half of the surface is to be employed, the loop is moved through the radial distance 16-18 or 18-17 with reference to a circle 19 inscribed in the upper surface of the turntable.
Patent GB-1009127-A (GB)
Title: Improvements relating to information transmission systems
IPC: H04L23/02
Filed: 1963-09-13
Abstract: 1,009,127. Selective signalling. FERRANTI Ltd. Sept. 13, 1963 [Sept. 15, 1962], No. 36085/63. Drawings to Specification. Heading G4H. In a system for converting a series of n code elements into another group of n elements the conversion is such that if the original group represents the co-ordinates of a point in an n dimension space the new group is the coordinates of that point after a rigid rotation of the orthogonal axes. The conversion is so arranged that noise in the transmission channel has less effect on the new group than it would on the original group.
Patent GB-1160171-A (GB)
Title: Water-Soluble or Water-Dispersible Binder Material
IPC: C08G59/16
Filed: 1967-08-07
Abstract: 1,160,171. Copolymers of esterified epoxy resins. REICHHOLD CHEMIE A.G. 7 Aug., 1967 [2 Nov., 1966], No. 36154/67. Headings C3B and C3P. [Also in Division C7] A water-soluble or water-dispersible binder material is prepared by (a) partially esterifying an epoxy resin, or a polyhydroxy compound obtained by hydrolysis of the epoxy groups of an epoxy resin, with an unsaturated straight chain monocarboxylic acid or a mixture of monocarboxylic acids containing at least 60% by weight of unsaturated straight chain monocarboxylic acids, (b) esterifying the resultant partial ester with a polybasic carboxylic acid and (c) neutralizing the free carboxylic groups in the ester with ammonia or a strong organic nitrogen-containing base so as to produce a water-soluble or water-dilutable binder material, the epoxy resin ester being copolymerized with at least one vinyl or vinylidene compound during step (a) and/or step (b) and/or the unsaturated monocarboxylic acid being copolymerized with a vinyl or vinylidene compound prior to reaction in step (a). In the Examples 1 an epoxy resin partial ester is prepared from an epoxy resin derived from 2,2-bis(4<SP>1</SP> hydroxy. phenyl)-2-propane and epichlorohydrin and a fatty acids distillate consisting of einolic acid, saturated fatty acids and oleic acid. A fatty acid adduct is prepared from dehydrated castor oil and tall oil fatty acids and maleic anhydride and the adduct is hydrolysed. The partial ester, vinyl toluene and acrylic acid are polymerized in the presence of ditertbutyl peroxide and lauryl mercaptan, the copolymer reacted with the adduct and the product neutralized with water and di-isopropanol amine. Example 2 is similar 2,2-bis(4<SP>1</SP> hydroxyphenyl)-2-propane is used, styrene and alpha methyl styrene instead of vinyl toluene, no lauryl mercaptan and ethyl glycol and aqueous ammonia instead of di-isopropanol amine. The binder of Example 1 was pigmented with iron oxide red and basic lead silica chromate and the binder of Example 2 was mixed with titanium dioxide and a waterdispersible cobalt-containing siccative.
Patent GB-1445847-A (GB)
Title: Kit of parts for assembly to form a frame
IPC: E04F19/10
Filed: 1973-07-30
Abstract: 1445847 Mats E TESTAS 30 July 1973 [28 July 1972] 36190/73 Heading A4S [Also in Divisions El and F2] A frame for a doormat comprises bars 1, having channels 2 and 3, each having a partially closed mouth, corner members 4 which engage a channel 2 or 3 in a pair of adjacent bars, and fixture members 5 which also engage in channels 2 or 3 and secure the frame into a concrete floor. The bars are of L-section and may have flanges of different widths and be formed from metal or plastics.
Patent GB-412233-A (GB)
Title: Improvements in or relating to multi-stage expansion steam engines
IPC: F01K7/02
Filed: 1932-12-22
Abstract: 412,233. Multiple - expansion steam engines. NORTH EASTERN MARINE ENGINEERING CO., Ltd., Wallsend-on-Tyne, and HUNTER, H., High Cottage, Dees Avenue, Wallsend-on-Tyne. Dec. 22, 1932, No. 36310. [Class 122 (iii).] In a multiple-expansion steam engine the valves V1, V2 of the H.P. and M.P. cylinders respectively, are arranged at opposite ends of the blocks of cylinders and the steam entering the H.P. cylinder is cooled and the exhaust from this cylinder heated by the action of an interchanger formed as a U-bend al in the H.P. steam pipe B located within the exhaust pipe E. Similar interchangers may be arranged between other pairs of cylinders.
Patent GB-979181-A (GB)
Title: Improvements in or relating to liquid flowmeters
Inventor: MUSHAM JOHN ROBIN
IPC: G01F1/38
Filed: 1961-10-11
Abstract: 979,181. Liquid meters. ENGLISH ELECTRIC CO. Ltd. Nov. 5, 1962 [Oct. 11, 1961], No. 36479/61. Heading F1A. [Also in Division G1] In a liquid meter for measuring and indicating the rate of flow of a liquid and comprising a piston and cylinder 11, 12 supplied by a valve 15, piston 11 is connected to the movable contacts 14 of potentiometers 14a, 14b, which feed, respectively, a transistorised circuit controlling solenoid valves 43, 63 for reversing valve 15 by liquid pressure, and an electrical circuit incorporating a meter for indicating the velocity of the piston and hence the rate of flow (see Division Gl). Valve inlet port 53 is dimensional such that during changeover inlet 54 communicates with outlet 57 to prevent flow fluctuations. A by-pass valve 64 between inlet 54 and outlet 57 opens if the meter breaks down. The ports of solenoid valves 43 and 63 are constricted to damp the movements of valve 46.
Patent GB-177607-A (GB)
Title: Improvements in photographic film cameras
IPC: G03B19/04
Filed: 1920-12-31
Abstract: 177,607. Koehl, K. Dec. 31, 1920. No Patent granted (Sealing fee not paid). Magazine hand cameras for roll films with connected action between shutter and changing mechanism.-The film is fed by a claw on a slide - operated by cords and pulleys, and the shutter is operated by a rotary cam actuated during the return movement of the slide. In the construction shown, the slide 8 carrying a claw 10 is reciprocated on a rail 9 by cords wound on pulleys 3, 12. The feeding-pulley 3 is mounted on a shaft 2 and is rotated by ratchet gear when the shaft is rotated by an external handle 4. The return pulley 12 is rotated by a spring 13, Fig. 1. A rotary cam 16, of the kind described in Specification 176,557, is loosely mounted on the shaft 2 and, during the return movement, is coupled to the pulley 3 by ratchet gear. The cam 16 operates the shutter 18, Fig. 4, through a cranked lever 17. A ratchet-wheel 15 and pawl 20 prevent retrograde rotation of the cam.
Patent GB-446026-A (GB)
Title: Improvements in the production of aliphatic organic compounds
IPC: C07C45/62
Filed: 1934-12-21
Abstract: Methylisobutylketone is condensed with an aliphatic aldehyde having at least eight carbon atoms to form a ketol, which may then be dehydrated to give an unsaturated ketone, e.g. by heating after acidification.  By reduction, the corresponding saturated ketone is first produced and by further reduction a secondary alcohol which may be sulphated to give, in the form of an alkali metal or alkaline earth metal salt, a detergent.  In an example, methylisobutylketone is condensed in the presence of methanol or ethanol with ethylhexaldehyde and the resulting ketol converted into the unsaturated ketone.  The latter is heated with hydrogen under pressure using nickel, copper, platinum, palladium or copper chromite as catalyst whereby a product is obtained which on fractionation yields 7-ethyl-2-methylundecanone-4 and 7-ethyl-2-methylundecanol-4. The latter is sulphated with sulphuric acid and acetic anhydride, the neutralized product taken up in methanol and extracted with hexane after the addition of water.  The aqueous methanol solution is finally evaporated.  For the sulphonation, diluents such as dichlorethyl-ether or carbon tetrachloride may be used and other sulphonating agents.  The use of ethylpropylacrolein instead of ethylhexaldehyde is mentioned, in which case 7-ethyl-2-methylundecadiene-5 : 7-one-4 is obtained as the unsaturated ketone.  This is reduced to give the corresponding saturated ketone and secondary tetradecyl alcohol, the latter being sulphated to produce the detergent.  The use of the product in the textile and leather industries as wetting, impregnating, foaming and emulsifying agents is mentioned.  Methylisobutylketone may be prepared by dehydrating diacetone alcohol and hydrogenating the product.  Ethylpropylacrolein may be prepared by forming an aldol from butyraldehyde and dehydrating.  Ethylhexaldehyde may be prepared by hydrogenating ethylpropylacrolein.
Patent GB-795607-A (GB)
Title: Improvements in apparatus for recording and reproducing sound on elongated recordingmediums
IPC: G11B15/22
Filed: 1956-11-30
Abstract: 795,607. Magnetic recording and reproducing apparatus. INDUSTRIAKTIEBOLAGET LUXOR. Nov. 30, 1956 [Dec. 8, 1955], No. 36700/56. Class 40 (2). In a magnetic recording or reproducing apparatus comprising a non-conducting tape 4 having conducting end portions adapted to cooperate with a pair of contacts 2, 5 in order to actuate a stopping or reversing device the apparatus is provided with a delay mechanism 14, 15 which is driven in association with the tape and controls the opening and closing of a pair of contacts 10, 11 connected in series with the contacts 2, 5. During normal running of the apparatus as shown the contacts 5, 2 and 9, 3 are open whilst the contacts 10, 11 are closed. Should a break in the tape occur the spring-loaded arm 6 will close the contacts 9, 3 thereby shortcircuiting a relay coil 1 and stopping the apparatus. However, when the ends of the tape engage the contacts 5, 2 the coil 1 is shortcircuited through the contacts 10, 11. The members 10, 11 are carried by a plate (not shown) which is displaced on starting in order to disengage the members 14, 15 from one another. To rewind the tape the plate is again depressed and raised whereby the member 14 is brought into contact with the worm 15 and the contacts 10, 11 opened, see Fig. 1 (not shown).
Patent GB-444605-A (GB)
Title: Improvements in or relating to the manufacture and use of textile treating baths
IPC: D06M13/144
Filed: 1934-12-22
Abstract: The wetting-out properties of alkaline baths used in textile treatments are improved by the addition of one or more hydrogenation products of furfurol and one or more fat solvents which, by themselves, are insoluble in alkaline liquors but are soluble or emulsifiable therein in presence of the hydrogenation products. Specified hydrogenation products are furfuryl and tetrahydrofurfuryl alcohols and specified solvents are propyl, butyl, amyl and octyl alcohols, cyclohexanol and its homologues, benzyl alcohol, acetals and ethers of glycerol or glycol and mixtures of alcohols with hydrocarbons or chlorinated hydrocarbons.  In an example, a hydrogenation product of furfurol which is mainly tetrahydrofurfuryl alcohol is mixed with butyl alcohol and the mixture is added to a caustic soda solution to be used for mercerizing cotton yarn.  The butyl alcohol may be replaced by amyl alcohol or by a mixture of propyl or amyl alcohol with methylcyclohexanol or of butyl alcohol with methylcyclohexanol and tetrahydronaphthalene.  The Specification as open to inspection under Sect. 91 comprises also a further example in which a mixture of furfuryl and amyl alcohols is incorporated in a similar mercerizing solution; the amyl alcohol may be replaced by butyl alcohol or by a mixture of amyl alcohol with trichlorethylene or of amyl alcohol with tetrahydronaphthalene and cyclohexanol.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1517527-A (GB)
Title: Apparatus for multi-orifice extrusion
IPC: B29C48/09
Filed: 1975-09-09
Abstract: 1517527 Multiple parison extrusion OWENSILLINOIS Inc 9 Sept 1975 37056/75 Heading B5A An extrusion die for simultaneously extruding a plurality of blow-moulding parisons of non- uniform wall thickness comprises a plurality of annular extrusion orifices 33 with their axes aligned in a single plane and formed by relatively movable mandrel and bushing elements 30, 20; the movable element 30 of each orifice being fastened in a clamp secured against relative axial movement to a beam 40 extending in said plane and constrained for movement in the plane axially of the orifices; and actuating means 50 for moving the beam 40 to simultaneously vary the dimensions of all the orifices 33. In Figs. 1 and 5 each mandrel 30 is constrained by a sleeve 32 mounted in a die block 12 containing extrusion passages 13-15. The ends 42 of the mandrels are adjustably connected to the beam 40 by threaded bushings 43 and lock nuts 41. The beam 40 is raised and lowered by an hydraulic cylinder 50 according to a preset programme, the actual movement of the beam being sensed by a transducer 51- 55. The beam movement is limited by a stop 56 and by the bottom of the frame 18 in which it is mounted. To evenly distribute the lifting forces on the beam the ends are connected by ball and socket joints 65 to arms 64 secured to a torsion shaft 61 journalled in blocks 62 to the frame 18. In Fig. 7 the ends of the beam are connected to lifting devices 75a and 75b each comprising yokes 76 carrying cam following rollers 77, 78. The hydraulic cylinder 50 horizontally reciprocates cam shafts 85 to raise and lower the yokes and thereby the beam 40 according to a servo-controlled preset programme.
Patent GB-941381-A (GB)
Title: Improvements in or relating to wedges
Inventor: WOOLCOCK STANLEY RICHARD
IPC: E04C5/12
Filed: 1958-11-18
Abstract: 941,381. Clamps. CABLE COVERS Ltd. Feb. 18, 1960 [Nov. 18, 1958], No. 37133/58. Heading E2B. [Also in Divisions D1 and F2] A tubular wedge comprises two or more segments 11, 13 forming a body with a tapered, cone-shaped exterior and a cylindrical bore 14. Each segment interlocks with an adjacent one by, e.g. pegs 16 and recesses 18. In use, the wedge is placed round a rod &c., e.g. a reinforcing rod and its exterior is engaged in a hole in a support.
Patent GB-875360-A (GB)
Title: Improvements relating to electro-magnetic core members having slots for receiving windings
IPC: H02K3/487
Filed: 1958-11-19
Abstract: 875,360. Securing coils for dynamo-electric materials. GENERAL ELECTRIC CO. Nov. 19, 1958 [Jan. 2, 1958], No. 37284/58. Class 35. In an electromagnetic core member having disposed in a wedge-receiving portion 4 of a slot 2 a wedge 7 slightly smaller than such portion to define a longitudinal clearance 9, a spring 8 provided to resiliently maintain the wedge 7 in place consists of a strip having a flat central portion 8a and corrugated side portions 8b extending the length of the strip the side portions 8b having a greater free radial height than the clearance 9 whereby they are deflected by insertion of the wedge to bias the latter resiliently into tight frictional engagement with the slot portion 4. As shown the core is that of a dynamo-electric machine rotor 1 containing coils 5 held in place by a plurality of magnetic or non-magnetic steel or resin-bonded fibre-glass wedges 7 disposed along the length of the core, but the invention is also applicable to a dynamoelectric machine stator in which case the wedges would be of non-conductive material.
Patent GB-1153546-A (GB)
Title: Hydraulic Fluids
Inventor: PEELER ROBERT LEE
IPC: C09K3/00
Filed: 1967-08-14
Abstract: 1,153,546. Hydraulic fluid. CHEVRON RESEARCH CO. 14 Aug., 1967 [30 Aug., 1966], No. 37336/67. Heading C5F. An hydraulic fluid comprises a major proportion of a tri-alkyl or a mixed alkyl aryl phosphate or a mixture thereof, 0À1 to 5% by weight of an epoxy compound and 0À01 to 2% of a polyhydroxy compound in which at least two of the hydroxy groups are attached to and separated by no more than three aliphatic carbon atoms and in which the ratio of carbon atoms to hydroxy groups is no greater than 2 to 1. Examples of the phosphates listed have alkyl groups which contain from 1 to 10 carbon atoms and which may be substituted by hydroxyl groups and halogens. Suitable epoxy compounds are aryl epoxy compounds, glycidyl ethers, cycloalkyl epoxides, olefinic oxides, epichlorohydrin, chloroprene oxides, epoxidized oils such as castor oil, linseed oil and soybean oil, expoxidized fats and expoxidized esters of unsaturated fatty acids. The polyhydroxy compound may have hydroxy groups on 3 or more adjacent carbon atoms, e.g. these produced by the reduction of a sugar and may contain aromatic groups provided that the hydroxyl groups are attached to aliphatic carbon atoms. Suitable polyhydroxy compounds are sorbitol, mannitol, arabitol, tartoric acid, ethylene glycol, 1,2-propylene glycol, glycerol, erythritol, and penta-, dipenta-, and tripentaerythritols. Viscosity index improves such as polyalkylacrylates and methacrylates of molecular weight 5,000 to 1,000,000 and having alkyl radicals containing 2 to 12 carbon atoms, pour-point depressants, extreme pressure agents and dyes may also be included.
Patent GB-898343-A (GB)
Title: Gasoline composition
Inventor: BROWN JEROME ENGEL
IPC: C10L1/30
Filed: 1958-11-20
Abstract: A gasoline composition contains 0,005 to 10 grams per United States gallon of a metal of Groups Ib, IIb or VIII of the Periodic Table (excluding nickel) as a cyclopentadienyl compound of formula M A x By Cz where M is the metal, A is a substituted or unsubstituted cyclopentadienyl radical and B and C are electron-donating groups. The composition may also contain organolead anti-knock compounds, halohydrocarbon scavengers, and compounds of phosphorus, arsenic, antimony and bismuth.  In examples gasolines and anti-knock compositions contain cyclopentadienyl methyl iron dicarbonyl, phenylcyclopentadienyl cobalt dicarbonyl, cyclopentadienyl copper carbonyl, octylcyclopentadienyl iron nitrosyl carbonyl, methylcyclopentadienyl zinc ethyl, cyclopentadienyl propyl ruthenium diammonia, tert. butyl cyclopentadienyl methyl cadmium, cyclopentadienyl cobalt dicarbonyl, ethylcyclopentadienyl copper phosphorus tribromide, ethylcyclopentadienyl methyl zinc and cyclopentadienyl ruthenium dimethylamine nitrocyl; tetraethyl lead, tetraphenyl lead, ethylene dichloride, ethylene dibromide, trimethylphosphate and diphenylmethyl phosphate.  Lists of suitable cyclopentadienyl compounds and other additives are given, including organolead compounds, halogen-containing scavengers, organic phosphates, phosphites, phosphines, arsenates, arsenites, arsines, antimonates, antimonites, stibines, bismuthates, bismuthites and bismuthines.
Patent GB-1143477-A (GB)
Title: Improvements relating to structural elements for use in the erection of frameworks
IPC: A63H33/10
Filed: 1966-08-22
Abstract: 1,143,477. Structural plug-in elements. A. HUFGARD. 22 Aug., 1966, No. 37575/66. Heading A6S. [Also in Division E1] Toy building apparatus comprises a series of elongated elements 1, 2, 3 which can be plugged together lengthwise or transversely, each with square cross-section of outside size the same size as the inner longitudinal passage through the next largest element. In the side walls are square-shaped apertures of the same size as the inner passage between the side walls, arranged so that the upper and lower edges of successive pairs of apertures (one of each pair in one of an opposing pair of side walls) are in longitudinal staggered relationship lying in a common plane intersecting perpendicularly the main axis of the element, and so that all the apertures in a particular side wall are aligned along its length. The side walls of at least the largest element in the series have a second set of apertures for inserting plug-in members such as smaller elements, fixing pins, connecting and joint elements; and the two sets of apertures alternate in each side wall. The second set may be square in cross-section. A short portion of at least the last element may be designed as a clamping sleeve or may be coupled to a U- shaped joint bridge 15. A short portion of an element may be in the nature of a plate-like bearing member 8 with a circular hole 8' and projections round its periphery. The elements may be of metal sheets bent inward round the apertures to form bearing surfaces for inserted elements, or of plastics such as resiliently deformable polymers, or of cast concrete.
Patent GB-900834-A (GB)
Title: Screw-type bottle-closure with locking device
IPC: B65D41/04
Filed: 1959-11-05
Abstract: 900,834. Container closures. GOLDE, E. Nov. 5, 1959 [Nov. 17, 1958], No. 37622/59. Class 125(3). A screw-cap for a bottle is made of an elastic thermoplastic material and has an annular protrusion 6 above a thread 4, while the bottle neck has a corresponding protrusion 3 below a thread 2, so that when the cap is applied it may be screwed down until the protrusion 6 rides over the protrusion 3, the screw-threads become disengaged, and the cap is locked against axial movement on the bottle neck. At the top of the cap an inwardly extending part 7 forms a seal within the bottle neck, and a spout 8 is initially closed but may be cut to provide a squirt opening. The thread on the bottle neck may be either internal or external, and the protrusion on either the bottle neck or the cap may be dispensed with, the screw-thread serving as abutment in its place.