baber/WOPTO huggingface dataset:
Patent GB-1411925-A (GB)
Title: Process for the preparation of halogen-substituted aromatic polycarbonates
IPC: C08G63/00
Filed: 1974-03-29
Abstract: 1411925 Preparing polycarbonates BAYER AG 29 March 1974 [30 March 1973 20 Feb 1974] 14021/74 Heading C3R A process for preparing a polycarbonate from one or more aromatic dihydroxy compounds of which 50-100 mole per cent are tetrahalobisphenols comprises reacting the aromatic dihydroxy compounds with phosgene under phase boundary condensation conditions wherein (i) an aqueous alkaline solution of the bisphenols is reacted with phosgene in the presence of 2-20 mol per cent of a catalyst (referred to the dihydroxy compound) and at a pH of 7 to 9 to give an oligocarbonate with an end group ratio of chlorocarbonic acid ester to hydroxyl of more than 1.1 ; 1 and (ii) polycondensing the oligocarbonate at a pH of more than 13 and a hydroxyl concentration (referred to the aqueous phase) between 0.20 and 0.40% by weight. The examples describe preparing polycarbonates from tetra-chloro or bromo-bisphenol, optionally with bisphenol A using triethylamine as catalyst and p-tert-butylphenol or tribromophenol as chain stoppers. The polycarbonates may have a molecular weight between 5000 and 50,000.
Patent GB-528654-A (GB)
Title: An improved protective device for use in connexion with glazed windows and the like
IPC: E06B9/18
Filed: 1939-05-11
Abstract: 528,654. Window guards. RYAN, H. W. May 11, 1939, No. 14115. [Class 20 (iii)] A protective device for windows and the like comprises a roll of wire mesh 2 suspended by its free end 4 and provided with means for rolling and unrolling it in a vertical plane behind the window or the like. The rolling and unrolling means consists of a cord 8 secured near the suspended end 4 of the mesh and looped under the coil to pulley 7. The free end of the cord may be fixed to a cleat 9. The mesh may be covered with material so that the device also acts as a black-out blind.
Patent GB-567862-A (GB)
Title: Improvements in and relating to self-locking nuts
IPC: F16B39/34
Filed: 1943-08-31
Abstract: 567,862. Locking nuts. BIRCHALL, F. Aug. 31, 1943, No. 14162. [Class 89 (i)] Self-locking nuts are provided with an extension 12 in a counterbore of which is bonded a ring of resilient rubber-like material moulded, in situ and provided with an incompletely formed thread 14 continuing that of the nut. The thread is formed thicker but is truncated so that the cross-sectional area is about equal to that of the standard thread. In the case of a steel nut the counterbored recess is preferably coated with brass deposited electrolytically or by spraying and a rubbery material is chosen that bonds to brass but not to steel.
Patent GB-1493418-A (GB)
Title: Anti-backlash atachment mounting
IPC: E02F3/36
Filed: 1975-04-07
Abstract: 1493418 Mounting of load engaging device J I CASE CO 7 April 1975 [10 May 1974] 14202/75 Heading B8H [Also in Division A1] In an anti-backlash linkage arrangement for mounting an implement on a tractor, a tractor supports a mounting arm 16 having a link pin 21 extending between two plates 22 welded to the arm and an implement supports a frame portion 18 having two spaced openings at 12 and 13 co-operating with bolting means 39, 44 and frusto-conical shaped bushings 37 in respective frusto-conical shaped apertures in the mounting arm and an end of a link 19 to give connections without backlash at 12 and 13, the link 19 having a hook 23 at its other end which is urged against the link pin 21 at 14 by a clamp 26. The clamp 26 includes a U-bolt 27 and saddle 31 secured by nuts 32, the clamp extending around the plates 22 and link 19 so that mating surfaces on the clamp, link and plate ensure a secure connection at 14.
Patent GB-1014810-A (GB)
Title: Improvements in or relating to pulse radar apparatus
IPC: G01S13/536
Filed: 1955-05-17
Abstract: 1,014,810. Pulse radar. E. SCHULZE. May 17, 1955 [May 18, 1954], No. 14276/55. Heading H4D. In a pulsed F.M. radar, to avoid reflections from unwanted targets, the frequency of the locking-oscillator is varied automatically to maintain the Doppler frequency of the targetof-interest constant at e.g. 2 kc/s. This enables a narrow-band-amplifier to be used thereby reducing interference by other transmitters. The variation of the locking-oscillator-frequency provides a measure of the radial speed of the target. The Doppler frequency is preferably extracted from the target signal by a gated amplifier which is unbacked by the transmitterpulse-generator. The Specification also states that the constant Doppler frequency simplifies the determination of target azimuth and elevation. The amplitude modulation of the Doppler frequency due to aerial rotation may be extracted, and compared with an aerial position signal in a central-zero A.C.-wattmeter-type instrument.
Patent GB-311107-A (GB)
Title: Improvements in or connected with means for ventilating buildings
IPC: F24F7/02
Filed: 1928-05-17
Abstract: 311,107. Boulton & Paul, Ltd., North, J. D., and Ffiske, G. E. May 17, 1928. Ventilators.-Means for ventilating buildings, such as cowsheds and poultry houses, consists of a Venturi-shaped member C formed by the roof or wall of the building and an external shield or deflector B, and the throat of the Venturi communicates through a slot or aperture A with the interior of the building. The deflector B is supported at intervals by members B<1>, and its under surfaces may be upwardly directed as shown in Fig. 1, horizontal or downwardly directed to a less degree than the slope of the roof.
Patent GB-1386152-A (GB)
Title: Dispensing device
IPC: B01L99/00
Filed: 1972-03-20
Abstract: 1386152 Dispensing liquids PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 28 March 1972 [31 March 1971] 14514/72 Heading A4T A device for dispensing small quantities of liquids comprises a rotor 1 enveloped by a housing 2, the rotor or housing having in their opposed faces, at least one helical groove for pumping liquid, the axis of the rotor being vertical, means 11, 12 for driving the rotor, the housing having at one end an outlet aperture 4, and the other end being in communication with an auxiliary container 5. This container has a cover 6 incorporating two tubes, one, 7, extending further into the container than the other 8. Tube 8 is wider than tube 7 and the end of tube 8 within the container is cut at an angle to the horizontal. The other ends of the tubes can be in communication with a closed container 21 for the liquid dispensed. The auxiliary container acts as a constant level device to maintain substantially constant pressure above the rotor. The drive shaft 12 from electric motor 11 passes through an aperture in the cover 6, and plate 13 is provided to collect any liquid splashes, throw them out by centrifugal force to flange 14, where they are deflected down and drain back into the auxiliary container via aperture 22.
Patent GB-553312-A (GB)
Title: Improvements in or relating to sliding sash windows and to the manufacture or production thereof
IPC: E06B3/44
Filed: 1941-11-12
Abstract: 553,312. Windows. HILLS PATENT GLAZING CO., Ltd., and HINCHCLIFFE, E. D. Nov. 12, 1941, No. 14564. [Class 20 (iii)] The frame 1 of a sash window is made of moulded synthetic or hard setting plastic material and is enclosed within a metal subframe 3 the sides of which form chambers 14, 15 adapted to house weights 16 for counterbalancing the sashes 4, 5. Top and bottom channel section strips 3 are united at their ends to the weight chambers to provide the subframe. The frame is preferably moulded in one piece, and in it are formed channels 6, 7, 8, 9 each adjacent to a shoulder 10, a flange 11 being formed at its outer edge and adapted to seat against the sub-frame. The mouth of the chamber 2 is provided with horizontal strips 17 serving to anchor a cap 18 to close the opening, a cover 19 enclosing the opposite side of the chamber. Pulleys 20 are mounted in brackets secured to the wall of the chamber, and carry cords by which the sashes are raised and lowered. Each sash may be moulded in one piece, and is formed with a lip 23 engaging the channels in the frame 1, the glass 28 being held between a lip 26 and a beading 30 secured to the sash frame, the beading preferably being made in four sections. The sashes and beads may be produced by moulding or extruding a hard setting synthetic resin.
Patent GB-572584-A (GB)
Title: Improvements relating to height adjustable platforms
IPC: E06C1/397
Filed: 1943-09-06
Abstract: 572,584. Height adjustable platforms. ALLEN, P. J., and ALLEN & CO. (ENGINEERS), Ltd., A. H. Sept. 6, 1943, No. 14597. [Class 20 (ii)] A work platform 20 is pivoted at the upper end 19 of a ladder 15 which is in turn pivoted at 17 on a fixed inclined support 12 rigidly secured to a wheeled base 1, the inclination of the ladder being varied by a screw and nut gear 32, 39 to adjust the height of the platform 20 which is maintained substantially horizontal by the parallel linkage 25, 12, 15, 29, and member 27. The steps 18 are curved in cross-section to provide a substantially horizontal tread portion at all inclinations of the ladder. The forward wheels 7 are mounted as castors and may be locked by screws 11 to maintain the base stationary. A fitter's bench 44 may be mounted on the base.
Patent GB-328461-A (GB)
Title: Improvements in harrows or like agricultural implements
IPC: A01C3/08
Filed: 1929-05-10
Abstract: 328,461. Bryce, A. C. May 10, 1929. Harrows; tools.-A reversible harrow or like implement for distributing manura &c. comprise upright members of considerable area and wholly or partly of circular form, connected together in tandem by flexible members with parts of their peripheries adjacent to, or in contact with, the surface operated upon. The upright members may consist of wooden or metal discs 1, Fig. 4, provided with loops or staples 2 and connected together by chains 8 attached to a draw-bar. In the modification shown in Fig. 3, the lower part of the upright member consists of part of a disc 5 provided with a slot 6. Spikes 7 may be removably or otherwise attached to the part 5 for use on reversal. Hooked rods or bars may be substituted for the chains 8. The lines of discs &c. are preferably independent of one another but may be connected across by chains &c. attached to side loops 9. According to the Provisional Specification the upright members may be rotatable to some extent to bring a fresh part into operative position.
Patent GB-547139-A (GB)
Title: Improvements in metal floats
IPC: F16K33/00
Filed: 1941-11-13
Abstract: 547,139. Alloy steels. LEVICK, Ltd., J., and SMITH, T. Nov. 13, 1941, No. 14616. Drawings to Specification. [Class 82 (i)] [Also in Groups XXII and XXIX] Ball floats, intended for use under considerable collapsing pressure as for regulating liquid levels in steam boilers, are made in two parts or in halves from stainless steel spinnings or pressings connected by welding or brazing.
Patent GB-816139-A (GB)
Title: Improvements relating to exterior driving mirror fittings for vehicles
Inventor: HENSHALL ARTHUR HOWARD
IPC: B60R1/076
Filed: 1955-05-21
Abstract: 816,139. Hinges. DESMO Ltd. July 7, 1955 [May 21, 1955], No. 14710/55. Class 65(2) [Also in Group XXXIII A driving mirror for vehicles has an arm 1 carrying the mirror 2, the arm being jointed to, or swivelly connected to, an attachment member 3 which has faces 19a, 19b co-operating under resilient pressure with faces 18a, 18b on the arm 1, and the arm carrying a depending flange or skirt 25 which conceals the co-operating faces. The member 3 has a screw-threaded portion 5 which passes through a hole in the wing 4 of the vehicle and is secured by a nut 10, and the member is hollow to receive a pivot pin 14 projecting from a boss 13 on the arm 1. A spring 15 surrounds the pin and is located between a shoulder 16 and a collar 17. Relative rotary movement between the arm 1 and the member 3 about the axis of the pin will cause the boss 13 of the arm 1 to be displaced away from a boss 7 of the member 3, against the action of the spring 15. In a modification the boss 13 of the arm 1, instead of being recessed to receive the boss 7 of the member 3, projects into the boss 7 which is recessed. The faces 19a, 19b are symmetrically disposed plane half-faces forming a ridge 21, but in a modification the end face of the boss 7 has a ridged central portion and a horizontal peripheral portion, the boss 13 being shaped correspondingly and being also provided with an annular skirt. The bosses 7, 13 instead of having each two oblique co-operating faces may have only one oblique face each. Specification 803,995 [Group XXXII] is referred to.
Patent GB-236720-A (GB)
Title: Improved apparatus for separating liquids from granulated substances
IPC: B01D33/073
Filed: 1924-06-19
Abstract: 236,720. Douglas, J. W., (Executrix of Douglas, R. P.). June 19, 1924. Rotary strainers-A vessel divided by radial partitions a into compartments provided with sieves c<1> rotates on a stationary hollow shaft b slotted along it upper surface. Material is supplied through a spout 5 to the, uppermost compartment, and the liquid therefrom is drawn away through the shaft b. The solid matter is discharged from the compartment in the course of rotation which may be continuous or intermittent. The vessel may be rotated by a handle wheel and worm gearing, or by power. Or it may rotate under the gravitation of the material treated, dash-pots being provided to regulate the movement.
Patent GB-1108444-A (GB)
Title: Axle casing for motor vehicles and a method of manufacturing the casing
Inventor: KLEIN HANS
IPC: B21D53/90
Filed: 1965-04-07
Abstract: 1,108,444. Axle casings. F. KIRCHHOFF, [trading as STEPHAN WITTE & CO.]. 7 April, 1965, No. 14850/65. Heading B7D. [Also in Division B3] An axle casing comprising a widened central portion for accommodating axle drive means and end portions for receiving wheel hub bearings consists of two parts 1, 2 arranged in mirror-image relationship and made from lengths of tubing each longitudinally slotted over a length corresponding to the height of the central portion of the axle casing to form legs 3 which are bent apart to form upper and lower casing walls and to define oval lateral openings 6, the end faces of the legs being welded together at 5 and oval cover-plates being welded over the lateral openings, one of the cover-plates being dished and the other having an opening 9 for a drive-shaft. The two lengths of tubing may be of circular or rectangular cross-section and the slotting may be effected by milling or torch-cutting. The legs 3 are formed by hot or cold pressing and preferably by using a common male die, which may be fixed or adjustable, and a pair of female dies and are connected together at 5 by built-up or electric flash butt pressure welding. The hub bearing end portions may be inserted tubular ends (Fig. 8, not shown) or suitably formed ends of the tubes 1, 2 (Fig. 7, not shown) when each of the male die or dies is provided with an appropriate mandrel.
Patent GB-1147742-A (GB)
Title: Gas-diffusion electrode with an electrically insulating intermediate layer
IPC: C25B11/00
Filed: 1966-04-04
Abstract: 1,147,742. Gas diffusion electrode for electrolysis; sintered electrodes. SIEMENS - SCHUCKERTWERKE A. G. and VARTA A. G. April 4, 1966 [April 9, 1965], No.14879/66. Headings C7B and C7D. A gas-diffusion electrode for the electrochemical dissolution or separation of gases, e.g. the separation of H 2 , O 2  or halogens, comprises a porous working layer 7 incorporating a metal, a porous electrically insulating intermediate layer 6, and a porous metallic layer 5 which contacts the electrolyte, each layer being porous over its entire area and the layers 7 and 5 extending over the whole of the intermediate layer 6, the pores in the intermediate layer being smaller than those in the working layer and peripheral edge retaining means 3 for retaining the layers in close contact with one another. The working layer 7 may contain Ni, Pd, Pt, Ag or Ni + Ag. The intermediate layer 6 may be of asbestos Al 2 O 3 , MgO, BaSO 4  or synthetic resin. The contact layer 5 may have a potential different from that of the working layer 7 imparted to it. The layers 5 and 7 may be sieves. In an example of making a gas-diffusion electrode 8 grams of a mixture of carbonyl Ni powder (grain diameter 5Á) and KCl powder (grain diameter 200Á) as pore-former in the weight ratio 3:1 were charged into a 40mm diameter mould, an asbestos membrane was placed on the mixture, and a further 8 grams of the same pulverulent material were introduced into the mould. The three layers were pressed at 400‹ C. under a load of 9 tons. The electrode thus formed was then provided with an edging. In making electrodes including A1 2 O 3  or MgO, the oxides may be flame sprayed.
Patent GB-553417-A (GB)
Title: Improvements in and relating to the treatment of flue-dust such as blast furnace dust
IPC: C21B7/00
Filed: 1941-11-19
Abstract: 553,417. Pneumatic conveyers. BRASSERT & CO., Ltd., H. A., and THOMSON, T. Nov. 19, 1941, No. 14880. [Class 78 (i)] In means for conveying blast furnace and like dust a quantity of gas is withdrawn from the main gas system through a pipe 10, is compressed by a compressor 11, and is used in the pipe 5 as a medium for conveying the dust from 2 to 6, after which the gas is returned into the main gas system. In the arrangement shown dust from a blast furnace 1 enters a collector 2 and is fed by a screw conveyer 3 to an injector 4 in the conveyer pipe 5 along which it passes to cyclone or other collectors 6 and 7. Roughcleaned gas passes from the vessel 2 through a pipe 8 to gas-cleaning plant 9. The conveying gas, after passing through the cyclone 6, is returned to the main gas system either through a pipe 13 as shown in full lines or through a pipe 14 as shown in broken lines. According to the Provisional Specification air, instead of furnace gas, may be used for conveying the dust.
Patent GB-358590-A (GB)
Title: Combination furniture
IPC: A47C17/12
Filed: 1930-05-15
Abstract: 358,590. Chairs convertible into beds. LANE, J. C., Abercrombie Avenue, High Wycombe, Buckinghamshire. May 15, 1930, No. 14994. [Class 52 (ii).] In an armchair convertible into a bed, and of the type in which the hinged sides can be lowered laterally to form horizontal extensions of the seat, the arm-rests B are made of such a width that they form the supports for the sides S when lowered into their horizontal position. The back D may be folded forwardly as to the seat A, and is then flush with the lowered horizontal sides S. Cushions F, G may be provided.
Patent GB-114436-A (GB)
Title: Improvements in Guns and in Mountings for same.
Inventor: COYLE ANDREW MCNAIR
IPC: F41A9/45
Filed: 1916-10-23
Abstract: 114,436. Coyle, A. M. Oct. 23, 1916. Ordnance b r e e c h mechanism. - Consists in providing a non- recoil gun with a smooth breech-closing plug which bears against a fixed abutment when the gun is fired. During elevation the breech of the gun moves over a hard steel abutment surface 32, Fig. 2, on the carriage 27 which serves to support the breach plug 41 during firing. The plug is unseated, after the breech of the gun has been raised to the loading position, by handles 42, Fig. 5, carrying wedges or cams 43 bearing against the standing breech, the plug being then guided axially to the rear by a rod 71 sliding in a bracket 76, and being finally swung aside about a pivot 73, the bracket 76 being guided by rollers 77 on a rail 74.
Patent GB-1449054-A (GB)
Title: Dispersed catalysts
IPC: C08F4/619
Filed: 1973-03-29
Abstract: 1449054 Olefin polymerization catalyst dispersion IMPERIAL CHEMICAL INDUSTRIES Ltd 29 March 1974 [29 March 1973] 15157/73 Heading C3P Olefins are polymerized using a dispersion of a transistion metal olefin polymerization catalyst or catalyst component, optionally supported on a support such as an oxide, in an inert diluent, the dispersion being stabilized by a graft or block hydrocarbon copolymer containing at least one segment which is adsorbed on the catalyst, catalyst component or support and at least one segment which is soluble in, or solvatable by, the diluent. Suitable diluents are hydrocarbons while suitable segments for adsorption are of polystyrene and solvatable or soluble segments are suitably polymers of conjugated dienes. The dispersions may be obtained by simple mixing or preferably by subjecting the mixture to shearing action. Examples refer to the polymerization of ethylene, ethylene - propylene, ethylene - hexene - 1 and ethylene - butene - 1, under pressure or in a solvent at low pressures, in some cases in the presence of hydrogen and/or additional AlEt 3 , and using dispersions in heptane or a hydrocarbon fraction of tetrakis (trimethyl silylmethyl) zirconium, zirconium or titanium tetrabenzyl (supported on alumina), TiCl 3 , MgSO 4 +TiCl 4  + VOCl 3  + Et 2 AlCl, or MgO + AlEt 3  + VCl 4 , together with a styrene-isoprene block copolymer.
Patent GB-125317-A (GB)
Title: Improvements in Girders, Spars, and like Members of Aircraft and similar Light Structures.
Inventor: MILLER HERBERT WILLIAM
IPC: B64C1/06
Filed: 1918-09-18
Abstract: 125,317. Miller, H. W., and Bingley, F. Sept. 18, 1918. Framework.-Metal spars and girders for aircraft &c. are formed from thin sheet metal seamed together at their edges to form interlocking joints. Fig. 3 shows a box girder in which flanges e on members a, b are embraced by channels f on members c, d, offset portions g preventing displacement of the flanges e. The members c, d have lightening holes, the remaining metal being flanged and ribbed as shown at h, i. Figs. 4 and 5 show joints for members which do not meet at right-angles, shoulders k being formed on the members a.
Patent GB-559610-A (GB)
Title: Improvements in roll grinding machines
IPC: B24B5/16
Filed: 1942-10-29
Abstract: 559,610. Grinding machines. CHURCHILL MACHINE TOOL CO., Ltd., and WHIBLEY, R. J. M. Oct. 29, 1942, No. 15202. [Class 60] Roll grinding machines as in Specification 529,137 for producing a concave or convex camber on the roll are provided with means for ensuring symmetry from end to end of the cambered surface and for this purpose the lever i which effects the rocking of the grinder support q through a strut o is pivotally connected to the slipper d riding in the adjustably inclined slot c and in its initial mid-position the axis of the lever is parallel with the slot.