baber/WOPTO huggingface dataset:
Patent GB-1082518-A (GB)
Title: Mineral mining machines
Inventor: BAINBRIDGE DOUGLAS
IPC: E21C27/22
Filed: 1963-06-14
Abstract: 1,082,518. Mineral mining machine. COAL INDUSTRY (PATENTS) Ltd. June 9, 1964 [June 14, 1963], No. 23817/63. Heading E1F. In a mineral mining machine, such as that of the referred to Specification 987505, having a rotary cutter head mounted at the free end of a universally swingable boom mounted on a vehicular chassis the boom is of telescopic construction.
Patent GB-1103664-A (GB)
Title: Improvements in or relating to television picture display apparatus
Inventor: VISONTAI PETER
IPC: H04N5/57
Filed: 1965-06-04
Abstract: 1,103,664. Television. COMMUNICATIONS PATENTS Ltd. 3 June, 1966 [4 June, 1965], No. 23843/65. Heading H4F. To counteract the change in amplitude of the video signal developed across load impedance R1 of video amplifying stage V1 when the contrast control, which is assumed to control the gain of a stage prior to valve V1, is adjusted, so varying the absolute potential of the black level of the video signal and the brightness of the picture displayed on cathode-ray tube 11, the control grid of tube 11 is arranged to have applied to it two potential sources connected in series. The first potential source having high internal impedance comprises a pulse generator 12 e.g. the line time base, pulses from which are applied through capacitor C1 to rectifier D 1 arranged to provide a direct current through potentiometer RV1. The second potential source comprises a rectifier D2 which provides in response to the video signals applied to the cathode of tube 11 a direct current through resistor R2 corresponding to the tops of the synchronizing pulses. Because the first potential source has a high internal impedance, variations in the second potential source are not readily swamped and the potential applied from the wiper of potentiometer RV1 to the grid of tube 11 varies in dependence upon the potential of the second potential source.
Patent GB-692257-A (GB)
Title: Improvements relating to rotary air or gas compressors and vacuum pumps
IPC: F04C29/02
Filed: 1949-09-16
Abstract: 692,257. Rotary compressors or pumps. WADE & SON, Ltd., J. T., and WADE, S. C. Sept. 15, 1950 [Sept 16, 1949; Dec. 7, 1949], Nos. 23928/49 and 31440/49. Class 110(ii) In a rotary pump of the eccentric rotor, sliding vane type lubricating means comprises an oil sump S which supplies the slots for the vanes, the inner ends of which act as pistons to force the oil through lubricating passages in the pump, using inlet and outlet ports L<SP>3</SP>, L<SP>4</SP>. A channel may be provided in the form of a U tube supplied by wicking, to form a reservoir of oil which is available as soon as the pump starts up. Some of the oil pumped by the vanes may be returned to the sump. The vanes may be moved outwards centrifugally or by cam means in the pump end plates. Gas or air inlet and outlet ports B\ B<SP>2</SP> are provided. An oil seal C<SP>2</SP> is located as shown. The oil in the sump is under delivery air pressure, the sump collecting any foreign matter carried by the air before it is delivered to an outlet G<SP>1</SP>. In a modified arrangement, Fig. 6 (not shown) a pump rotor is overhung from the end of the shaft of a driving motor.
Patent GB-718168-A (GB)
Title: Improvements in or relating to the preparation of weakly basic anion-exchange resins
IPC: C08G59/32
Filed: 1952-09-24
Abstract: Weakly basic anion-exchange resins containing polar amino groups are prepared by reacting ammonia or a primary or secondary amine with an insoluble cross-linked copolymer of a glycidyl ester having the general formula <FORM:0718168/IV (a)/1> in which R represents hydrogen, chlorine, or an alkyl group containing 1 to 4 carbon atoms, such as the glycidyl esters of acrylic, chloroacrylic, methacrylic, ethacrylic, propylacrylic, and butylacrylic acids, with a cross-linking agent containing a plurality of non-conjugated vinylidene groups, such as divinyl benzene and naphthalene, trivinyl benzene and naphthalene, polyvinyl anthracenes, diallyl phthalate, succinate, and maleate, and divinyl sebacate.  The use is described of a terpolymer of glycidyl methacrylate, divinyl benzene, and ethyl styrene.  Amines specified are methylamine, dimethylamine, n-butylamine, iso-butylamine, dibutylamines, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, propylenediamine, cyclohexylamine, dicyclohexylamine, aniline, methylaniline, benzylaniline, ortho-, meta-, and para-toluidines, xylidines, benzidine, alpha- and beta-naphthylamines, benzylamine, dibenzylamine, phenylenediamine, and benzylethylamine.  The reaction of the copolymers with ammonia or amines is preferably carried out at elevated temperatures in a liquid medium such as water, an alcohol, dioxane, or toluene, with the aid of a catalyst such as hydrochloric and sulphuric acids, trimethylamine hydrochloride, or benzyltrimethylammonium chloride.
Patent GB-279997-A (GB)
Title: Improvements in pudding cloths
IPC: A47J43/20
Filed: 1926-09-29
Abstract: 279,997. Manville, M. Sept. 29, 1926. Pudding-cloths.-A pudding-cloth consists of two pieces of cloth A stitched together, a tape having a lifting loop B in the middle, two rows of stitching C near the edge, and a tape D which runs between the two rows of stitching.
Patent GB-1269515-A (GB)
Title: Article inspection by successively televised images
IPC: G01N21/90
Filed: 1969-05-12
Abstract: 1,269,515. Photo-electric testing. EMHART CORP. May 12, 1969 [May 20, 1968], No.24012/69. Heading G1A. In an arrangement for investigating an article by a television camera the signals of successive images are compared by temporarily storing and recalling the earlier in order to eliminate elements common to the two signals which concern other than the matter of interest. In the arrangement described foreign particles in a moving liquid within a glass ampoule are detected but flaws in the ampoule itself which is stationary are cancelled out, the ampoule being spun for a short period to induce movement in the liquid. Signals above a predetermined level in the output from camera 30, Fig. 1, are stored in a memory 38, and, when switching device 34 is actuated by a pulse from vertical synch B, the stored signal is compared with the camera output in a comparator 40 which in the presence of foreign particles develops an error signal to actuate an ampoule reject device 72. Light from lamp 26 is screened by a hood 28 to pass around the ampoule by internal reflection and thus illuminate the particles more than the liquid. The apparatus is explained with reference to waveforms Figs. 2, 3 and 4 (not shown). Reference is made to use of the invention for inspecting containers for flaws or lack of symmetry.
Patent GB-390712-A (GB)
Title: Improvements in ice, roller and the like skates
IPC: A63C1/24
Filed: 1932-08-29
Abstract: 390,712. Skates. DEYHLE, R., 34, Stampfenbachstrasse, Zurich, Switzerland. Aug. 29, 1932, No. 24044. Convention date, Aug. 29, 1931. [Class 132 (i).] A roller or ice skate is provided with forward and rear plates 2, 3, Fig. 2, for attachment to a shoe and an intermediate spring-supported plate 6 placed intermediately at an angle to the runner. The spring support may comprise blade springs 5, Fig. 2, a helical spring 10, Fig. 3, or pneumatic or hydraulic springs. In the form shown in Fig. 3 the forward plate 8 is provided with a backwardly-directed blade spring 9 and the plate 9<1> made wider than the plate 6 in Fig. 2, screwed studs 13 being provided on each side to act as stops to limit the inclination of the plate 9.
Patent GB-1008318-A (GB)
Title: Improvements in or relating to auxiliary seats for vehicles
IPC: B62D49/02
Filed: 1962-06-22
Abstract: 1,008,318. Controlling vehicles; seat arrangements. C. VAN DER LELY NV. June 22, 1962 [July 19, 1961], No. 24110/62. Headings B7H and B7J. In a tractor which may be driven rearwardly to operate an implement, e.g. a mowing machine 13 operated through a cardan shaft 14 from the tractor power take-off, an auxiliary seat and controls are provided to allow the driver to face in the direction of travel. The tractor has a three-point power lift linkage comprising an upper arm 9, lower arms 7 and 8 and a tool bracket 10, the upper arm 9 being pivoted to the vehicle at 16 and having a bearing 17 in which is supported a shaft 18 at the ends of which are mounted plates 19 and 20 in which, on pivots 53, the auxiliary seat 56 is supported by a linkwork 51, 52, 55. The strips 57 and 58 are located between the links 52 and the plates 19 and 20, the strip 58 being provided with springs 59 which abut the strip 57 to support the seat which may be tilted to an inoperative position with the links 52 abutting a stop 60 when the driver wishes to use the normal seat 4. A shaft 27, Fig. 5, is rotatably mounted between the plates 19 and 20 and supports a sleeve shaft 41, pedals 28 and 42 being rigid with the shafts 27 and 41, respectively, which are connected to links 29 and 43 of identical linkages on each side of the vehicle, each comprising an intermediate link 30, Fig. 3, and links 34 and 35 pivoted to a shaft 36 and connectible together by a pin 38, Fig. 4. The final link 35 in the linkage operable by the pedal 28 bears against the brake pedal 39 through an adjustable stop 40 and by a corresponding arrangement, the pedal 42 co-operates with the clutch pedal of the vehicle, the arrangement being such that the brakes and clutch are operated by the driver's right and left feet respectively in both directions of travel. The plate 20 has an extension 45 forming a bearing 46 for an auxiliary steering wheel 46 connected through a telescopic cardan shaft 49 to the normal steering wheel 3. The throttle control 6 and gear lever 5 may be reached from both seats.
Patent GB-997892-A (GB)
Title: Production of alkyl titanates
Inventor: LAWRENCE LESLIE JOHN
IPC: C07F7/00
Filed: 1963-06-18
Abstract: Alkyl titanates are made by forming a titanium tetrachloride alkanol mixture wherein the alkanol contains from 2 to 5 carbon atoms, but excluding tertiary butyl alcohol, and the titanium tetrachloride/alkanol molar ratio is at least 1 to 2 and below 1 to 4; physically removing hydrogen chloride from the reaction mixture; adding alkanol to give a titanium tetrachloride/alkanol ratio of at least 1 to 4; adding a base to the reaction mixture, which base will not form water with the hydrogen chloride liberated, and thereafter recovering the alkyl titanate.  The preferred tetrachloride to alkanol molar ratio is initially in the range of 1:2 to 1:3 and particularly 1:2.5.  The most preferred alkanols are isopropanol or normal butyl alcohol.  The reaction may be carried in an inert solvent amongst which are specified hydrocarbons or chlorinated hydrocarbons, such as heptane, hexane, toluene, benzene, petroleum ether, cyclohexane, carbon tetrchloride or chloroform.  The preferred method of hydrogen chloride removal is by boiling the reaction mixture or by subjecting it to reduced pressure.  Bases specified as suitable are gaseous ammonia and pyridine.  Bases forming hydrochlorides which are substantially insoluble in the reaction mixture are preferred.  The hydrochloride thus formed may be first separated from the reaction mixture after which the alkyl titanate may be separated from any excess alkanol and/or inert solvent by distillation.  The examples describe the preparation of isopropyl titanate and n-butyl titanate using as base ammoniagas. Comparative data is also included on the amount of hydrogen chloride retained after mixing titanium tetrachloride and alkanol in various molar proportions and after boiling such mixtures and after subjecting them to reduced pressure.
Patent GB-920174-A (GB)
Title: Improvements in or relating to glass manufacture
Inventor: BASTERFIELD HORACE ANDREW
IPC: C03C1/10
Filed: 1960-07-11
Abstract: 920,174. Coloured glass compositions. UNITED GLASS Ltd. May 18, 1961 [July 11, 1960], No. 24139/60. Class 56. For the continuous manufacture of homogeneously coloured glass by the addition of a colouring agent to molten base glass, the colouring agent is a glass having a viscosity less than 400 poises at 1100‹ C. The viscosity may be less than 100 poises at 1100‹ C. The colouring glass given is, in percentages by weight, Na2O, K2O and/or Li2O 20 to 40; SiO2 30 to 60; B2O3 and/or PbO 5 to 35 together with colouring material, metal oxides 5 to 15 or Se with or without arsenic oxide up to 3. Examples are given. Metal oxides suggested are Co, Cr, Ni, V, Fe and Mn. Base glasses of (1) soda-lime, (2) potash lead and (3) fluoride soda-lime glasses are also given, the ranges being (1) Na2O 12 to 16; CaO 9 to 13; Al2O3 0 to 2; SiO2 70 to 75; (2) PbO 30 to 35; SiO2 50 to 55; K2O 10 to 15 and (3) as (1) with in addition F 2 to 6. Up to 5% may be added of the oxides of Mg, Ba, B and K.
Patent GB-1301213-A (GB)
Title: Apparatus for measuring the range and velocity of a moving body
IPC: G01S17/14
Filed: 1971-04-19
Abstract: 1301213 Laser range finding COMPAGNIE GENERALE D'ELECTRICITE 19 April 1971 [16 March 1970] 24163/71 Heading H4D The range and velocity of a target are measured by transmitting a light pulse to the target and measuring the echo time and the Doppler shift which is measured by channeling parts of the transmitted and reflected pulses along with a reference beam to a detector which provides difference signals to an acoustic-optical deflector which analyses the difference frequencies. Laser 1 transmits a pulse of frequency f 1  to the target which reflects a pulse of frequency f 2 . The echo time is measured in unit 200 to determine the range. Semi-reflecting mirrors 15-17, channel parts of the pulses and a reference beam from a second laser 4 having a frequency f 0 , to a detector 5 which produces successive pulses at frequencies f 1 -f 0 , f 2 -f 0 . These are passed to an acoustic transducer 10 in a deflector 9, e.g. a crystal of lead molybdate. The deflection of light beam 11 incident at the Bragg half-angle for the mean frequency of the transducer is proportional to the frequency of the acoustic wave. Lens 12 focuses the beams on to screen 13 which may be photosensitive. The displacement and relationship of points A and B determines the magnitude and sense of the Doppler shift. In a further embodiment (Fig. 2, not shown) the range of velocities which can be measured is increased by using three deflectors with transducers having contiguous pass-bands.
Patent GB-1033472-A (GB)
Title: Production of heat-resistant polymers
Inventor: GRECHKIN EVGENY FEDOROVICH
IPC: C08F30/02
Filed: 1964-06-11
Abstract: Polymers containing the repeating unit <FORM:1033472/C3/1> where R is allyl, aryl, alkoxy or aroxy, and R1 is the residue of an aliphatic alcohol are prepared by reacting the dichloro anhydride of beta-substituted vinyl phosphoric acid of formula RCH = CHPOCl2 with an aliphatic alcohol in the absence of moisture at a temperature not below 60 DEG  C.  It is alleged that the hydrogen chloride evolved during esterification acts as catalyst for the polymerization.
Patent GB-1460381-A (GB)
Title: Torsional vibration dampers
IPC: B05D1/06
Filed: 1974-05-31
Abstract: 1460381 Torsional vibration dampers HOUDAILLE INDUSTRIES Inc 31 May 1974 [22 June 1973] 24259/74 Heading F2S [Also in Division B2] A flywheel 13 for a torsional vibration damper, preferably attached to a crankshaft 7 by way of attachment flange 9, is housed in an annular chamber 12. Filler openings 15 in cover 14 allow the introduction of damping fluid, e.g. silicone, into reservoir 17 and fluid distribution passages 18. Damping efficiency is improved by applying a coating 20 of plastics material, e.g. nylon, P.T.F.E. or epoxy resin, to the flywheel by electrostatic powder coating (see Divisions B1- B2).
Patent GB-210815-A (GB)
Title: Improvements in braiding machines for making lace
IPC: D04C3/00
Filed: 1922-09-09
Abstract: 210,815. Ferrum Giesserei & Maschinenfabrik Akt.-Ges., and Hausberg, C. Sept. 9, 1922. Braiding-machines. - Relates to a braiding machine in which the centre-discs drive the bob. bin-carriers and turn by quarter revolutions at a time, or multiples thereof without reversing, by means of stops some of which are under jacquard control. On the upper ends of pillars 3 are mounted hubs 9 carrying ratchet wheels 5 which act as driving discs, and below them other ratchet discs 10 the teeth of which face the opposite way. At the lower ends of the pillars 3 are gear wheels 15, meshing together, and cross-pieces 14, which rotate with them. Pairs of vertical shafts 13 pro. jecting through the parts 14, 15 carry at their upper ends pawls 12 for engagement with the ratchets 10, and at their lower ends V-shaped members 17 which can be engaged by jacquard. controlled stops 19 or by fixed stops 18 to place the pawls 12 into or out of engagement with the ratchets 10 and thereby move, or assist the move. ment of the bobbin-carriers. The discs 5 are brought to rest by spring arms 23 acting on pro.. jections 22. When each gear wheel 15 is provided with two pawl carrying shafts 13 and with stops 18 arranged as shown in Fig, 4, each disc 10 will continue to rotate intermittently so long as the corresponding jacquard-controlled stop 19 is maintained in the position shown in Fig. 2 in dotted lines. In a modified form, the two positioning members carried by each gear wheel 15 are situated at different levels.
Patent GB-643976-A (GB)
Title: Improvements in and relating to wood tenoning and dovetailing machines
IPC: B23Q5/34
Filed: 1946-08-16
Abstract: 643,976. Tenoning and dovetailing machines. DRAPAK, A., DRAPAK, O., and DRAPAK, J. Aug. 16, 1946, No. 24482. Convention date, Sept. 18, 1944. [Class 145(i)] In a tenoning and dovetailing machine in which both the longitudinal and transverse motions of the cutter 10 are produced by rotation of a crank arm 16 in order to attain the required depth of cut the cutter rest 8 has an additional transverse movement imparted to it by means of cam discs 26, 27 connected to the crank driving shaft 19 which discs on the rotation of the shaft 19 roll against fixed pressure rollers 28, 29 so as to be displaced together with the shaft, crank arm, and cutter, in the transverse direction towards and away from the work. As shown, the drive shaft 19, driven by belt through gearing 20, 21 rotates the crank 16 and pin 15 causing the rod 11 to reciprocate longitudinally in the arm 14 carried by a slide 3, and causing the slides 3 simultaneously to be reciprocated transversely to the work. The extent of the reciprocations and hence the pitch of the tenons &c. cut, is variable by means of a screw adjustment 17, Fig. 5 (not shown), in the arm 16. Upper and lower cam discs 26, 27 mounted on the driving shaft 19 are adapted to contact pressure rollers 28, 29 mounted on the fixed bracket 37 and adjustable thereon, and are mounted to swing about pins 40, 41 so that (according to the thickness of wood to be tenoned) they may be swung outwards or inwards according to a scale 39 by the rotation of the disc 42 with its pins 43, 44 engaging in the cam discs, Figs. 3, 4. As the cams rotate with the crank arm and driving shaft contact of cams 26 with roller 29 moves the shaft, crank gear (carried by slides 31 on rollers 32) slides 3, and cutter rest an additional amount towards the work; whilst later, contact of the cam 27 with roller 28 displaces the system the same additional amount away from the work. Longitudinal motion of the cutter rest in one direction only (say from right to left in Fig. 1) is ensured by the provision of a clutch mechanism 12 on the carrier 8. With the clutch out of action; the cutter assembly may be returned to its initial position by means of a hand wheel 7 and chain 5.
Patent GB-782777-A (GB)
Title: Fuel compositions
IPC: C10L1/22
Filed: 1955-08-25
Abstract: I.C. engine fuel compositions which contain an N-alkylaniline also contain a primary and/or secondary aliphatic, cycloaliphatic or araliphatic amine having at least one hydrocarbon radical of at least 5 carbon atoms and an N-substituted hexahydrophthalic acid imide. The compositions may also contain an organic lead compound, such as tetraethyl lead, and a hydrocarbon halide, such as ethylene dichloride or dibromide.  The N-alkylaniline may be mono-or di-methylaniline.  The amine may be isoamylamine, diisoamylamine, mixtures of amines containing alkyl groups with 5 to 9 carbon atoms, cyclohexylamine, dicyclohexylamine, N-isoamylcyclohexylamine or 2-phenylethylamine.  The imide may be N-methyl-, N-ethyl-, N-npropyl, N-isopropyl-, N-n-butyl-, N-iso-butyl-, N-n-amyl-, N-isoamyl-, N-n-hexyl-, N-isohexyl-, N - octadecyl-, N,N1 - hexamethylene - bis-, N-cyclohexyl-, or N-phenyl-hexahydrophthalic acid imide.  Examples of compositions are given.
Patent GB-1279587-A (GB)
Title: Improvements in or relating to negative electrodes
IPC: H01M4/28
Filed: 1971-04-19
Abstract: 1279587 Alkaline storage batteries SOC DES ACCUMULATEURS FIXES ET DE TRACTION 19 April 1971 [26 March 1970] 24601/71 Heading H1B Cadmium hydroxide is provided in the pores of a sintered nickel carrier in conventional manner, the carrier is heated to convert the hydroxide to the oxide, and then the oxide is converted back to the hydroxide to obtain the desired negative electrode. The process converts any unwanted nickel hydroxide to the oxide and the rehydration process affects only the cadmium oxide, leaving the nickel in its electrochemically inert nickel oxide form. Furthermore, any excess nitrates are converted to a soluble form, and removed by washing, after the process. The final electrode has increased porosity and flexibility, and is used in alkaline storage cells with spirally wound electrodes. The carrier is impregnated with cadmium nitrate, and the hydroxide is precipitated using KOH or NaOH. Alternatively, cathodic polarization is used. The impregnated carrier is washed, dried, heated in air or inert gas at 250‹ C. for one hour to convert the hydroxide to the oxide. Rehydration is by immersing the carrier in water, dilute nickel sulphate solution, or NaOH solution, at 80‹ C. for 1-2 hours. The electrode is finally washed and dried in de-carbonated air. The electrode is used in sealed cells.
Patent GB-1221696-A (GB)
Title: Two-stage conversion of coal to liquid hydrocarbons
Inventor: SCHULMAN BERNARD LAMAR
IPC: C10G1/00
Filed: 1968-05-23
Abstract: 1,221,696. Destructive hydrogenation of coal. ESSO RESEARCH & ENG. CO. 23 May, 1968 [29 May, 1967], No. 24679/68. Heading C5E. A process for converting into liquid hydrocarbon products a solid, hydrogen-deficient, hydrocarbonaceous material containing combined oxygen comprises contacting said solid hydrocarbonaceous material in a hydrogendonor extraction zone with a hydrogen-donor solvent under conditions chosen to convert from 50 to 85 weight per cent of said solid hydrocarbonaceous material into liquid products and to remove from 70 to 90 weight percent of the oxygen content thereof, and thereafter contacting the unreacted solid hydrocarbonaceous material in a catalytic hydrogenation zone with gaseous molecular hydrogen and a hydrogenation catalyst under conditions chosen to obtain an overall conversion of 95 to 99 weight per cent of the solid hydrocarbonaceous material into liquid products and to remove substantially all of the combined oxygen remaining therein. The solvent may be tetralin, partially hydrogenated anthracene or a liquid aromatic product boiling in the range of 400 to 950 F. The catalyst in the second stage may be cobalt molybdate or a sulphided cobalt molybdate supported on alumina. The effluent from the second stage may be fractionated and a portion recycled. The feedstock may be lignite, brown coal, or sub-bituminous or bituminous coal.