baber/WOPTO huggingface dataset:
Patent GB-835442-A (GB)
Title: Glycol esters of terephthalic acid
Inventor: MACEAN NEIL MUNRO DUNCAN
IPC: C07C69/82
Filed: 1956-11-02
Abstract: In a process for making glycol terephthalates by esterifying free terephthalic acid with a glycol of formula HO(CH2)nOH where n is 2-10 under superatmospheric pressure, as claimed in Specification 777,628, titanium dioxide is used as an esterification catalyst in an amount exceeding 0.2% by weight of the terephthalic acid.  As additional catalysts there may be used alkali or alkaline earth metal salts of terephthalic acid (see Specification 782,036), which may be added as such or formed in situ by the addition of the oxides or hydroxides of the metals.  Examples describe the making of ethylene glycol terephthalates by autoclaving a mixture of terephthalic acid, ethylene glycol, titanium dioxide (and, if desired, calcium oxide) at 220-250 DEG  C. and 50 p.s.i.  The esters are polycondensed to high molecular weight products (see Group IV (a)).ALSO:In a process for making polyalkylene terephthalates by esterifying free terephthalic acid with a glycol of formula HO(CH2)nOH, where n is 2-10 under superatmospheric pressure as claimed in Specification 777,628, titanium dioxide is used as an esterification catalyst in an amount exceeding 0.2% by weight of the terephthalic acid.  As additional catalysts there may be used alkali or alkaline earth metal salts of terephthalic acid (see Specification 782,036) which may be added as such or formed in situ by the addition of the oxides or hydroxide of the metals.  Examples describe the making of polyethylene terephthalate by autoclaving a mixture of terephthalic acid, ethylene glycol, titanium dioxide (and, if desired, calcium oxide) at 220-250 DEG  and 50 p.s.i. followed by polycondensing the resulting ester at 275 DEG  C. and 0.2 mm. of Hg. in the presence of antimony oxide.
Patent GB-393584-A (GB)
Title: Improvements in or relating to pistons
IPC: F02F3/02
Filed: 1931-12-03
Abstract: 393,584. Pistons. AUTOMOTIVE ENGINEERING CO., Ltd., The Green, Twickenham, Middlesex, HICKSON, S. C. S., Haddon House, Victoria Road, Weybridge, Surrey, and WESLAKE, H., 35, Redcliffe Road, South Kensington, London. Dec. 3, 1931, Nos. 33553/31 and 11231/32. [Class 122 (i).] In a piston of the kind having internal webs 3 connecting the head 1 and gudgeon pin bosses 4, one or more circumferential slots 6 extending through the bottom wall of a ring groove, are so arranged as to leave the head connected to the skirt at one or more places 7 by the uninterrupted part of the said wall of the groove. The connections 7 may be arranged above or between the gudgeon pin bosses and may be formed by local thickening 11 of the wall of the groove. One or both thrust faces may be split by slots 8 extending from the middle or ends of the slots 6 to the bottom of the skirt or to meet other circumferential slots spaced from the bottom of the skirt. In the case of a piston in which the gudgeon pin bosses are separate from the skirt and extend into an aperture 17 therein, the longitudinal slots 8 may intersect the said aperture ; the lower portion 16 of the web 3 being divided and connected to the skirt on each side of the slot. Oil collected in a groove 13 passes through holes 19 to the interior of the piston. Specifications 200,718, [Class 122 (i), Engine and like cylinders &c.], and 393,597 are referred to.
Patent GB-1101616-A (GB)
Title: Optical apparatus for producing fringes of variable spacing
IPC: G01M11/00
Filed: 1965-08-05
Abstract: 1,101,616. Optical apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 5, 1965 [Aug. 13, 1964], No.33589/64. Heading G2J. Optical apparatus for producing interference fringes of variable spacing comprises a polarizer 5, two phase retarders 6, 8 arranged to produce a phase difference between orthogonal components of the polarization of light passing therethrough, a half-wave plate 7 between the retarders 6, 8 and an analyzer 9 which sets up interference fringes at 15, the retarders 6, 8 being mounted for rotation in opposite directions about a common axis parallel to the optical path so as to vary the fringe spacing. The polarizer 5 and analyzer 9 are mounted for rotation with the retarders 6, 8 respectively. The retarders 6, 8 may be Wollaston or Rochon prisms. Initially the optic axes of the prisms are arranged at 45‹ to the direction of polarization of the polarizer 5 and the axis of the plate 7 also forms an angle of 45‹ with the polarization direction. The location of the fringes may be translated by the incorporation between the polarizer 5 and the first retarder 6 of a Soleil compensator together with a further half-wave plate adjacent the retarder 6. This second half-wave plate is arranged to rotate at half the velocity of the retarder 6, and the polarizer 5 and Soleil compensator are stationary.
Patent GB-381395-A (GB)
Title: A slide rule for electrical engineers
IPC: G06G1/12
Filed: 1931-12-04
Abstract: 381,395. Slide - rules. GARDNER, L. F., 173, Fleet Street, London.-(Faber Castell-Bleistift-Fabrik Akt.-Ges., A. W. ; Stein, near Nuremberg, Germany.) Dec. 4, 1931, No. 33656. [Class 106 (i).] For use in determining electrical resistances of copper conductors at various temperatures the slide is provided with a subsidiary scale of temperatures as shown at T.
Patent GB-194021-A (GB)
Title: Improvements in or relating to means for use in connecting cocks, taps, and the like to pipe systems or containers
IPC: F16L41/10
Filed: 1921-12-15
Abstract: 194,021. Rees, S., Thomas, E., Hitchings, W. L., and Davies, J. Dec. 15, 1921. Junction-pieces; plates, jointing pipes to; with valves and cocks.-A valve device of the type in which a hollow perforated screwed plug 8 is moved into a chamber 1, to permit fluid to flow, by the act of screwing the main valve into position, has the aperture in the bottom of the chamber through which the plug is inserted provided with a reducing nipple 4 so as to necessitate only a small hole in the container or supply main. The screwed inlet of the main valve casing 10 has projections 11 adapted to engage recesses in the plug 12 so that as the main valve is screwed into the neck 2 the closure surfaces 8, 9 are separated and the apertures 7 exposed.
Patent GB-799467-A (GB)
Title: Compositions for providing protection against light
IPC: A61K8/44
Filed: 1956-11-06
Abstract: N-maleinyl-p-amino-salicylic acid and the N-maleinyl-aminobenzoic acids are prepared by combining equimolecular solutions of p-aminosalicylic acid or aminobenzoic acid in methanol or dioxane and maleic anhydride in chloroform. The product separates as a solid on standing.  Specification 703,878 is referred to.ALSO:A light barrier composition for the protection of the skin comprises N-maleinyl-p-amino-salicylic acid or N-maleinyl-aminobenzoic acid (for preparation see Group IV (b)) or a salt thereof. Anti-histaminic agents, such as a bromobenzyl - a  - pyridyl - dimethyl - ethylenediamine or p-bromobenzyl-a -pyridyl-methylethyl - ethylenediamine or m - bromobenzyl-a  - pyridyldiethyl - ethylenediamine, and colouring matter, such as ochre, may be present, together with ointment ingredients.  Specification 703,878 is referred to.
Patent GB-1465932-A (GB)
Title: Sound reflective elements
IPC: G10K11/20
Filed: 1974-07-31
Abstract: 1465932 Sound reflectors; subaqueous transducers FRANCE ARMED FORCES MINISTER OF 31 July 1974 [16 Aug 1973] 33890/74 Headings H4X and H4J A sound reflector for underwater use comprises a fluid-tight, elastically deformable envelope containing a lattice of crossed filaments disposed between two substantially rigid panels. The lattice has punctiform points of contact and is preferably formed of wires. It is preferably formed of plaited or braided wires. Several superimposed layers (e.g. 3 or 5) may be used. The crossed wires may be connected together at the intersection points by ties or binders or by spot soldering but this reduces the reflecting power at high pressures. Several layers of wire lattices 2a, 2b, 2c (Fig. 1) are sandwiched between metal sheets 3a, 3b approximately 1 mm. thick or sheets of laminated synthetic resin, e.g. polyester laminate. An envelope 4 is of natural or synthetic resin. The lattice may be of steel wires of diameter 0À5 to 2À00 mm., the meshes being from 0À5 mm. to 5 cm. An acoustic antenna (Fig. 2) is composed of transmitter or receiver electro-acoustic transducers mounted on a rigid support 7. A flat reflective surface 8 is formed of identical juxtaposed sound reflectors 8a disposed between the various transducers 6 and the support. Each sound reflector 8a is composed of a fluidtight envelope containing one or more layers of crossed wire lattices disposed between two rigid plates. The surface 8 may be cylindrical, polygonal or spherical. The reflectors 8a may be flat or curved.
Patent GB-1107411-A (GB)
Title: Carbamate compounds and pesticidal compositions thereof
Inventor: CLINCH PATRICK GEOFFREY
IPC: C07D295/215
Filed: 1964-08-19
Abstract: The invention comprises 3-(MeEtCH)C6H4OCONMeCOCH2OPh and compounds of formula ArOCONMeCOR1, where Ar is naphthyl or optionally substituted Ph, and R1 is (a) ClCH2 or CO2H (and its salts and esters), or (b) the radical X-alkyl, where X is RO, RO-alkoxy-, Ph-alkoxy, RS, RSO, RSO2, Ph (nitro- or amino-substituted), NCS-, substituted PhO; optionally substituted PhS, PhSO or PhSO2; CO2H or SO3H (and their salts and esters); or quaternary ammonium, R being alkyl.  Standard preparative procedures are used.ALSO:Compounds for controlling plant pests have the formul   3-(MeEtCH)C6H4OCONMeCOCH2OPh and ArOCONMeCOR1, where Ar is naphthyl or optionally substituted Ph, and R1 is (a) ClCH2 or CO2H (and its salts and esters), or (b) the radical X-alkyl, where X is RO, RO-alkoxy-, Ph-alkoxy, RS, RSO, RSO2, Ph(nitro- or amino-substituted), NCS-, substituted PhO: optionally substituted PhS, PhSO or Illegible data CO2H or SO3H (and their salts and esters); or quaternary ammonium, R being alkyl.
Patent GB-1151889-A (GB)
Title: Industrial Truck.
IPC: B66F9/16
Filed: 1966-07-28
Abstract: 1,151,889. Fork lift trucks. EATON YALE & TOWNE Inc. 28 July, 1966 [17 Aug., 1965], No. 33933/66. Heading B8H. A load carrier 21 is mounted via a base-plate 14 having rollers 15, 16, for vertical movement on the uprights of an industrial lift truck, the carrier being coupled to the base-plate 14 by means of a scissors linkage 30, 40, 41. The latter comprises two parallel sets of scissor links, each of which comprises a link 30 housing a bearing 42 at its mid length position, and part links 40, 41, each of which has one end secured to the bearing but on opposite sides of the link 30. The end portions of the link 30 are displaced to opposite sides of the plane of the centre portion of the link, allowing the links to pass to over-centre positions when fully retracted. The links are mounted to the baseplate 14 and to a carrier support member 17 by pivots 33, 48a and slide bearings 32, 47. A pair of rams 51, 52 pivotally connected between the links 30 and the support member 17 effect the projection and retraction of the carrier 21. The latter is pivotally mounted on the member 17 for limited rotation in the vertical plane by means of a tilt ram 62 engaging the carrier via a ball 61 and slot 60. The carrier is also movable transversely of the support member 17 by means of a side-shift ram 19.
Patent GB-364752-A (GB)
Title: Improved means for automatically igniting oil heating stoves at predetermined times
IPC: F24C5/14
Filed: 1930-11-12
Abstract: 364,752. Automatically igniting oil stoves. JOSE. E. J. H. D., 151, Highbury New Park, London. Nov. 12, 1930, No. 34001. [Class 75 (iii).] Means for automatically igniting an oil heat- . ing stove at predetermined times comprises a rotatable wick pilot jet 9, bent or curved at the upper end and adapted to be swung into contact with the main wick 10 by means of a toothed sector 6 in mesh with a pinion 5 connected by a clutch 3 with the winding spindle 1 of the alarm mechanism of a clock 2. The Provisional Specification describes also an arrangement in which the pilot-jet is adapted to be swung round for igniting the main wick before the alarm sounds, a wheel for releasing the pilot-jet being fixed to the wheel for releasing the alarm.
Patent GB-859751-A (GB)
Title: Magnetic core storage devices
IPC: H03K17/82
Filed: 1957-10-31
Abstract: 859,751. Circuits employing bistable magnetic elements. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 31, 1957 [Oct. 31, 1956], No. 34042/57. Class 40 (9). [Also in Groups XIX and XXXV] A magnetic core storage element comprises a magnetic core providing a main magnetic circuit which has one part divided to form input legs A and B and a further part divided to form legs C and D, one or both legs A and B being provided with a bias winding 16. " Read " and " write " windings 18, 20 are provided and a sense winding is provided on leg C or leg D. A continuous bias current is applied to the bias winding 16 so that to switch the core relatively large switching currents are required with subsequent improvement in switching times. In writing a binary " 1 " pulse currents flow in the read and write windings to give a main flux round the core aperture 13 and at the termination of these currents the bias current causes secondary fluxes to be set up, one round legs A and B and the other round the legs C and D. If then it is desired to write a binary " 0 " the read and write windings are pulsed to provide a main flux in the reverse direction which changes the flux in the leg linked by the sense winding. The read and write windings may link the central aperture and each carry a half current, and an inhibit winding may link that aperture (Fig. 9, not shown). As shown in Fig. 10, the " figureof-eight " bias winding may be replaced by two windings 38, 40. The bias current need not be continuous provided it is present during the read or write pulses. Magnetic storage arrays.-A number of elements may be associated in a memory array as shown in Fig. 11 which has a bias current source 44 connected to bias windings. The energization of appropriate X and Y windings will write a " 1 " in a selected core (normally storing a " 0 ") unless the Z inhibit winding is energized. The separate inhibit winding may be dispensed with and its function may be performed by the bias winding. Circuit elements 45 ... 50 enable the state of the array to be restored after reading. Specifications 766,189, 783,918, 789,096, 828,708, 841,426 and 845,431 are referred to.
Patent GB-1028353-A (GB)
Title: A zoom lens
IPC: G02B15/14
Filed: 1964-08-20
Abstract: 1,028,353. Variable focal length objectives. NIPPON KOYAKU KABUSHIKI KAISHA. Aug. 20, 1964 [Aug. 27,1963], No. 34101/64. Heading G2J. The zoom lens comprises four components, I and III being positive and being movable as a unit a distance x in one direction, II being negative and movable a distance y in the opposite direction and IV being fixed and either positive as shown or negative, Fig. 5 (not shown), the following being satisfied and in the maximum focal length position and x > 0.2 y wherein f 1 , f 2 , f 3  are the focal lengths of I, II, III respectively and D 1 , D 2 , D 3  are the distances between the principal places of I and II, II and m, and III and IV respectively. As shown component II is moved linearly whilst I and III are moved non linearly. Optical data are given for the example shown.
Patent GB-1278096-A (GB)
Title: Device for actuating a combination of valves or switches
Inventor: MORRISON WILLIAM MCKENZIE MEEK
IPC: F16K31/02
Filed: 1969-07-07
Abstract: 1278096 Valves TURNER MFG CO Ltd 25 Aug 1970 [7 July 1969] 34136/69 Heading F2V [Also in Division H1] An operating body 6, Fig. 2, may be inserted in a recess 2 in'at least two orientations so as to actuate a different combination of valves 3 or switches in each orientation. The body 6 may be a cube with recesses 7 on each face corresponding in position to plungers 4 on the valves which are not to be actuated. Further spring- loaded plungers (not shown) eject the cube from the recess after it has been released by rotation of a ring having projections 11 engaged in recesses 12. Spool or diaphragm valves may be used.
Patent GB-618996-A (GB)
Title: A hand cart for golf bags and the like
IPC: B62B1/04
Filed: 1946-11-18
Abstract: 618,996. Golf-bag carriers. BOUGHTON, N. E. Nov. 18, 1946, No. 34141. [Class 108 (i)] A hand cart for golf bags has a frame consisting of a central tubular member 1 to which are welded two downwardly and rearwardly diverging struts 2 having their lower ends detachably secured to the wheel axle 3, and an upwardly inclined member 13 secured by a hinged sleeve 20 to a handle member 14 which may be folded down to the position shown dotted. The member 1 has also welded to it at its upper end a curved arm 25 with a hooklike extension 26 for supporting the top of the bag, and at its lower end an arcuate band member 29 for steadying the bottom of the bag.
Patent GB-618505-A (GB)
Title: Improvements in or relating to stop-motions for looms
IPC: D03D51/28
Filed: 1945-12-17
Abstract: 618,505. Loom stop-motions; shuttles. COMPTOIR LINIER. Dec. 17, 1945, No. 34191. Convention date, June 13. [Classes 142(i) and 142(iii)] A stop-motion for circular and other looms for detecting and indicating the breakage, slackening, or exhaustion of the warp and weft threads by separate electrical means in combination with switches which control the supply circuit of the driving motor and an electric brake and have their movable contact elements maintained in the open position by each warp or weft thread when said thread is drawn tight, is characterized in that the switches 22 are arranged in auxiliary circuits supplied by a source 3 of electric current different from that which supplies the driving motor 6 and the brake 31, luminous and acoustic signals 17, 18, 40, 41, being connected in the auxiliary circuits as well as relays 21 which control the supply of current to the motor and the brake. Each warp thread 13 is associated with a flexible rod 14 which on failure of the tension of the thread contacts with a rail 15, common to a pair of heddles, to close one of the auxiliary circuits supplied by the source 3 of electric current and the actuation of the signals 17, 18. Each weft thread 9 is associated with a flexible rod 47 which when the tension of the thread fails contacts with a metal shuttle 1 or a finger thereon to close the other auxiliary circuit supplied by the source 3 and cause the actuation of the signals 40, 41. Auxiliary manuallyoperated switches 28, 39, are arranged in the auxiliary circuits corresponding to the warp and weft threads respectively. The, or each, shuttle 1 which is driven by an electromagnet 2 as described in Specification 618,504, carries a brush 34 which bears against a comb 35, and an arm 43 provided with a brush 44 which contracts a metallic ring 45.
Patent GB-1019967-A (GB)
Title: Process for refining oils
IPC: C10G53/06
Filed: 1963-08-30
Abstract: Lubricating oil fractions are refined, and vaporizable solvents used therefor are vaporzed, condensed, and recovered in a process which comprises the steps of solvent deasphalting to obtain separately a deasphalted oil/ solvent phase and an asphalt/solvent phase; a selective aromatic solvent extraction step, for example with phenol, which produces an extract phase and a raffinate phase, which are separtely heated to a temperature at which the hot extraction solvent vapours are removed; and a solvent dewaxing step in which a dewaxed oil/solvent phase and a slackwax/solvent phase are separated; the deasphalting and dewaxing solvents, which may both be propane, being removed by heating the separated phases and flashing the solvent therefrom, and the hot extraction solvent vapours being condensed by indirect heat transfer with the relatively cool deasphalted oil/solvent phase, the dewaxed oil/solvent phase and the slack wax/solvent phase, thereby simultaneously heating and evaporating the solvent from these phases, this solvent being condensed and collected.
Patent GB-190495-A (GB)
Title: Method of and apparatus for compressing air and other elastic fluids
IPC: F04D17/18
Filed: 1922-01-05
Abstract: 190,495. Suczek, R. March 28, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Centrifugal Sprengel pumps.-Elastic fluids are compressed by bringing the elastic fluid into mixture with a liquid the mixture being put under the action of centrifugal force and thereafter separated. The liquid may be discharged through a nozzle to produce power by reaction or impact. A centrifugal compressor C is provided with openings j, k through which air or gas is drawn into mixture with a liquid, e.g. water, and delivered to a rotating chamber A. The compressor C, chamber A and a chamber E communicating therewith by valve controlled ports V, V<1> together form a rotor member R which is rotated by the reaction of liquid jets issuing through nozzles N in the chamber E. The mixture separates in the chamber A and the two components pass through the corresponding valves V, V<1> to the chamber E where an explosion takes place forcing the liquid through the nozzles N which comprise a rotating ported sleeve changing the direction of the jet and a longitudinally adjustable member g<2> with an opening of such form as to counteract the effect of the change of direction of the jet and also the fall of velocity due to the fall of pressure of the exploded gases. The jet is also hand-controlled by a rod m<2> and levers j<2>, f<2> connected to the member g<2>. A shaft B controlling the valves and ignition is rotated at an adjustable speed relative to the rotor to regulate the power by varying the number of explosions. Fuel may be supplied direct to the chamber E through conduits m<1>, n<1> leading to a chamber o' whence the fuel is fed to a spray nozzle h<1>.
Patent GB-521903-A (GB)
Title: Improvements in and relating to dust excluders for the corners of rooms and the like
IPC: E04F19/04
Filed: 1938-11-28
Abstract: 521,903. Dust-shield for corners. BYSOU APPLIANCE CO., Ltd., and HARRISON, E. Nov. 28, 1938, No. 34535. [Class 20 (ii)] A dust shield for corners is formed with as many edges as there are planes meeting at the corner, such edges being bevelled, and the rear surface of the plate has a spike projecting from it and so placed that when the plate is slid along any two of the resting planes in a direction towards the corner, this pin projects into one of the other planes. The pin c may be carried by a bevelled projection b at the rear of the plate a which may have a dished front face. A further projection may be provided at the pin position on the front face of the plate to provide a grip for a punch when driving the pin home. The plate may be made of thermo-plastic or thermo-setting materials.