baber/WOPTO huggingface dataset:
Patent GB-1324096-A (GB)
Title: Monopulse radar apparatus
IPC: G01S13/44
Filed: 1970-08-04
Abstract: 1324096 Moriopulse radar HOLLANDSE SIGNAALAPPARATEN NV 4 Aug 1970 [12 Aug 1969] 37675/70 Heading H4D In a monopulse radar using coherent detection to provide at least two output signals which contain wanted Doppler signals and unwanted noise which are fed to an error detector to produce a tracking error signal switching means is provided to substitute for the second output signal a third signal which is the output of an oscillator equal in phase and frequency to the second output. Azimuth and sum signals #B, #, from antenna cluster 5 undergo coherent detection using coho 19 phase locked to the transmitter pulse generated by magnetron 1. The azimuth Doppler pulses pass through boxcar circuit 15 to Doppler filter 16 whose passband extends from the top end of the clutter spectrum up to one half the p.r.f. (Fig. 3, not shown). The sum channel is similar but has a dual channel early-late gate system and a sum and difference shaper 29 which provides a range error signal from amplifier 30 and a sum signal from amplifier 31. During initial tracking relay 55 holds switch 44 closed and switch 45 open, thus comparing the two error signals with the sum signal proper to provide sign determination of the error signals which then drive azimuth and range servos 7, 8. The range servo 8 contains two integrators 36, 37 which provide a signal to control time modulator 38 which positions the range gating pulses for the boxcar circuits 15, 25, 26. The signal from the first integrator 36 is proportional to target velocity and is used to control the frequency of oscillator 46 which thus operates at the Doppler frequency. The phase of the oscillator output is compared with the sum signal and the error signal used to control the oscillator phase. This output is then sampled by the transmitter pulses and passed through a Doppler filter 54. The output thereof is phase compared to the sum signal and equality of the two operates relay 55 to connect the simulated sum signal from filter 54 to the detectors 32, 33. Since the simulated sum signal contains no clutter or system jitter tracking accuracy is improved. In order to avoid blind speeds the p.r.f. may be varied. Reference has been directed by the Comptroller to Specification 1,156,589.
Patent GB-864067-A (GB)
Title: Improvements in or relating to devices for laterally displacing crop lying on the ground
IPC: A01D78/00
Filed: 1957-06-06
Abstract: The subject-matter contained in the present Specification is, for the greater part, identical with that disclosed in Specification 864,066 but the claims differ.  The present Specification however, refers to an additional modification in the construction of the raking device, in which the rake wheel supports are all of the same length, and the device is brought from one working position to another by displacing the rake wheels along their respective supports.  Specifications 852,462 and 864,068 also are referred to.
Patent GB-320287-A (GB)
Title: Process and apparatus for the manufacture of light hydrocarbons by catalytic cracking of petroleum oils, tars or other similar starting materials
IPC: C10G11/04
Filed: 1928-12-21
Abstract: 320,287. Compagnie Internationale pour la Fabrication des Essences et Petroles. Oct. 24, 1928, [Convention date]. Hydrocarbons, distilling.-Relates to a process and apparatus for catalytically cracking petroleum oils comprising vaporization of the oils followed by cracking at normal pressure in a catalyser and a subsequent purifying treatment before separation of the light from the heavy products, the heavy products being led to the vaporizer of another vaporizer-catalyser-purifierdephlegmator group and the heavy products therefrom to another like group and so on, the groups preferably being arranged in cyclic order, as described in Specifications 319,341 and 320,286. According to the invention, after the dephlegmators in the groups there is arranged in the outlet for the light products, for each group or for several, a refining apparatus comprising a heater, purifiers for removing sulphur from the products, catalytic reaction chambers, and condensers, absorbers being provided for the non-condensible products before the evacuation of the permanent gases. Oil from a reservoir A is heated to about 150‹ C. in a serpentine heater A1, and to about 200 C. in a second heater A2 to permit ready vaporization in a vaporizer B containing a metal or metal oxide on a porcelain or other inert carrier and provided with pipes b3, b4 for the introduction and release of a regenerating agent, steam being supplied to the vaporizer from a chamber C1. The vapours pass to a catalyser E such as that described in Specifications 317,719 and 324,481, [both in Class 1 (i), Chemical processes &c.], provided with means F for the regeneration of the catalyst, and maintained at a temperature of 400‹-450‹ C. A purifier J, constructed similarly to the catalyser E and charged with nickel &c. or a metal oxide, removes most of the sulphur and other impurities prior to the separation of the light from the heavy products in a dephlegmator L. The heavy products pass to another vaporizer-catalyser-purifier-dephlegmator group and the light products, i.e. those boiling below 250‹ C., after collection in collector M, pass through a heater 0 to a purifier N containing copper &c. for the removal of the last traces of sulphur and a refiner Q containing nickel or other active catalyst and constructed similarly to the purifier J. The temperature of the refiner is kept between 180‹ C. and 200‹ C. The products are condensed at R and collected in a receiver S, the non-condensible part thereof passing through an absorber U and a separator for ethylene products to a gas holder Y. The gases thus stored contain hydrogen and may be used in regenerating the material in the purifiers J.
Patent GB-1470425-A (GB)
Title: Sheet feeding apparatus
IPC: G03B27/14
Filed: 1974-08-29
Abstract: 1470425 Feeding sheets RANK XEROX Ltd 29 Aug 1974 [30 Aug 1973] 37839/74 Heading B8R Sheets from one of two piles 6, 7 are fed by separator rollers 6a, 7a, feed rollers and a feed belt to the transfer station of a xerographic copying machine to receive a print of an image of an original document fed in to the machine at 1. If the document is the wider of two sides, it actuates a microswitch to operate roller 7a, whereas a narrow document does not actuate the switch, and roller 6a is operated. If there are more than two document widths, the requisite number of piles and switches is provided. There is a manual control to over-ride the automatic control by the document.
Patent GB-364804-A (GB)
Title: Improvements in, or relating to, channel shaped elastic border for windows
IPC: B60J10/74
Filed: 1930-12-16
Abstract: 364,804. Window frames. PEKAGUMMI VERTRIEBSGES; 7, Alte Jakobstrasse, Berlin. Dec. 16, 1930, No. 37964. Convention date, Dec. 9. [Class 20 (iii).] A V or U-shaped channel or guide for windows is made of cork composition comprising cork shavings united by a binder. The guide may be cut out of a solid rectangular strip of composition or may be formed by joining strips 4, 5, 6 by rubber solutions, and may be covered with fabric 7. A channel with beaded edges may be formed by cotton material' 11, 12 encased in folded side strips of work material, Fig. 2.
Patent GB-892194-A (GB)
Title: Improvements in or relating to pipe joints
IPC: F16L33/00
Filed: 1959-11-11
Abstract: 892,194. Pipe joints. FREY, C. L. Nov. 11, 1959 [Nov. 12, 1958; Jan. 15, 1959], No. 38174/59. Class 99(1). In a joint comprising a spigot 1 adapted for insertion into the end of a pipe 13 of a plastic, rubber or metal, an outer sleeve 7 and a clamping member 10, the spigot has cylindrical and substantially conical portions 2, 3 and a flange 4, and the sleeve is formed with a cylindrical inner wall and has a circular recess 8. The sleeve is adapted to be moved by the member 10 towards the flange of the spigot so that the conical portion 3 of the spigot forces and compresses the material of the pipe into the recess 8 to thereby form a retaining bead or flange 13a. The components of the joint may be of metal or a plastic. The sleeve and spigot respectively may have threaded internal and external surfaces and be screwed on to and into the pipe, the sleeve having external splines 21, Fig. 12, which co-operate with grooves 23 in the nut to facilitate rotation of the sleeve ; also, the spigot, if of a plastic, may be sheathed with metal or, if of metal, sheathed with a plastic. A gasket 5 is interposed between the spigot and a fitting 14. The nut 10 may be replaced by a clamping flange, and the recess 8, Fig. 15, may be formed by a number of washers 24.
Patent GB-323364-A (GB)
Title: Improvements in or relating to the felting of animal hair
IPC: D01C3/00
Filed: 1928-12-28
Abstract: 323,364. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Dec. 28, 1928. Furs and furriery.-With the object of improving the felting property of animal hair whilst retaining its natural shade, the hair, on the skin or detached or in the first stage of felting, is treated with a solution of hydrofluoric acid or fluosilicic acid or a salt of either acid.
Patent GB-939035-A (GB)
Title: Improvements in differential pressure actuated piston and cylinder devices
IPC: F16J15/32
Filed: 1960-11-08
Abstract: 939,035. Piston packing. REGIE NATIONALE DES USINES RENAULT. Nov. 8, 1960 [Nov. 12, 1959], No. 38323/60. Class 122(1). [Also in Group XXIX] A compressed air actuated piston 3 has a peripheral groove 10 connected by a passage e.g. a radial bore 8 to the cylinder space at one end of the piston and the groove is overlaid by a packing 5<SP>1</SP> having apertures therein communicating with the groove 10 and terminating at the wall of the cylinder 2 against which the packing bears. As shown the apertures are formed in a thin portion 7 of the packing disposed between an inwardly directed lip 6 and an outwardly directed heel 4. A similar packing 5, Fig. 1 (not shown), may be provided at the other end of the piston 3. In a modification the bore 8 instead of opening into a cavity 9 opens into an axial passage 41, Fig. 2 (not shown), which itself opens on the end face of the piston.
Patent GB-900134-A (GB)
Title: A process for improving the properties of viscose rayon yarn or filaments and staple fibre
IPC: D01F11/02
Filed: 1960-11-09
Abstract: Viscose filaments, after emerging from the coagulating bath, are subjected to heat-treatment while they are being stretched, and are maintained in a stretched condition and in contact with hot water and/or steam for at least 10 seconds.  Heat-treatment may be effected at a temperature higher than that at which the filaments emerge from the bath, this higher temperature being 65 DEG C. or above.  Where hot water is used, the water temperature may be 85 DEG -92 DEG C. and the duration of treatment from 30 to 90 seconds.  Heat-treatment may be effected in a single step or treating zone or in more than one step or treating zone, in such a way that the combined treatment takes at least 10 seconds and preferably 30-90 seconds.  Filaments may be made to travel during treatment at a speed higher than 50 m./min.  Filaments may be fully stretched by a quick pass through a stretch trough in which hot acidic water or steam is circulated and the stretched filaments led to a device where they are held under tension for a period such that the total duration of contact with the treating medium is at least 10 seconds and preferably 30-90 seconds, the speed of the filaments being 50 m./min. or more.  In a preferred method, a viscose solution is used containing, by weight, 5,5-8,5% caustic soda, 6,0-9,0% of cellulose, 0,5-4% (based on the cellulose) of polyethylene oxide of molecular weight 1,000-4,000 or other known modifier which improves the tenacity of the filaments and enables filaments having a non-serrated, smooth cross-section to be obtained, and is spun at a degree of ripeness above 10 DEG  Hottenroth (salt point about 4), at a viscosity of 40 to 200 poises (at 20 DEG C.) into a coagulating bath containing by weight, 6-10% sulphuric acid, 2,5-12,0% anhydrous zinc sulphate, and 12,0-25,0% anhydrous sodium sulphate, and of specific gravity 1,260-1,310 at 35 DEG C.  The coagulating bath may also contain a modifier, e.g. polyethylene oxide of molecular weight 1,000-4,000, and may be maintained at 45 DEG -65 DEG C.  Spinning may be effected in a trough giving a horizontal immersion of above 50 cms. or vertical or inclined immersion of more than 30 cms.  On emerging from the coagulating bath the filaments may be led into a trough or other convenient treating device in which they are stretched while remaining in contact with hot water which may be acidic at 65 DEG C. or above, or with steam, the travel of the filaments in the treating device being so arranged that they are held under tension for from 30-90 seconds while being heated by the hot water or steam.  Filaments so made are characterized by a high wet and conditioned tenacity, and a high ratio of wet to conditioned tenacity.  In examples, staple fibres made from such filaments of denier 1,5-2 have wet tenacities of 2,76-3,04 g./denier, conditioned tenacities of 3,28-3,70 g./denier, and ratios of wet to conditioned tenacity of 80-84%.
Patent GB-896482-A (GB)
Title: Improvements in and relating to seals for relatively rotatable members
IPC: F16J15/42
Filed: 1958-09-02
Abstract: 896,482. Stuffing-box substitutes. MURRAY, W. Sept. 2, 1958, No. 38817/60. Divided out of 896,481. Class 122 (5). The shaft 5 of a centrifugal pump is sealed below a predetermined speed by a contact seal comprising an axially movable sealing-member urged as by springs 10 against a collar 6 on the shaft and sealed to the pump casing 17 by an 0-ring 21 free to roll between the outer periphery of the member and a bore in the casing. The member comprises a sealing-ring 22 fixed to a flanged sleeve 18 secured to the hub 20 of a disc 9 having a face 9a which when the shaft runs at or above the predetermined speed is subjected to liquid pressure sufficient to overcome the force of the springs 10 and move the member to separate ring 22 from sealing contact with collar 6. The shaft is then sealed by a liquid such as described and claimed in Specification 896,481.
Patent GB-1447255-A (GB)
Title: Fluid pressure operated control valve methods of locating short circuits between planar conductors
IPC: F16K31/365
Filed: 1973-08-17
Abstract: 1447255 Valves P OCHS 17 Aug 1973 38975/73 Heading F2V A pressure regulator responsive to inlet or outlet pressure, comprises a diaphragm C having a rubber-coated nylon main layer 34 sandwiched between two p.t.f.e. protective layers 35, 36 but at their periphery X being separated to allow air to be ventilated through via radial notches 39. The valve is suitable for steam at temperatures above 350‹F, the steam permeating the p.t.f.e. layer but being diluted by the circulating air so that the rubber layer is not adversely effected by the high temperature steam. The air may be entrapped (Fig. 4, not shown), or circulated from a source of biasing fluid (Figs. 5 and 6, not shown). The valve seat may be made of p.t.f.e. impregnated with glass or glass fibre impregnated with p.t.f.e. The diaphragm may be formed with a circumferential corrugation with air admitted to it (Fig. 7, not shown).
Patent GB-1360206-A (GB)
Title: Textile articles having an anti'soil redeposition performance  and their preparation
IPC: D06M15/55
Filed: 1971-08-11
Abstract: 1360206 Polyepoxides SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 11 Aug 1971 [13 Aug 1970] 38991/70 Heading C3B [Also in Division D1] A polyepoxide of a trito octa-hydric polyether, useful in textile treatment has at least 10 oxyethylene and 1 oxypropylene group per molecule. The polyepoxide may be prepared by replacing at least 50% of the hydroxyl groups which terminate polyoxyethylene chains commencing at the oxygen atoms of glycerol, sorbitol or sucrose with epoxide groups. Preferably the molecule contains 20 to 200 oxyethylene groups. In Example 10À04 mole sorbitol polyether containing 118 oxyethylene groups per molecule is dissolved in toluene, connected to the sodium alkoxide with 0À3 moles sodium hydroxide, azeotropically dried, cooled below 40‹ C., 2À75 mole epichlorhydrin added, the mixture refluxed for 3 hours and unreacted epichlorohydrin removed by vacuum stripping. In Example 2 sodium replaces sodium hydroxide. A 0À1% to 5% by weight solution or aqueous dispersion of the polyepoxide containing 0À5 to 5% (by weight of polyepoxide) of hexamethylene tetramine, pyridine, N,N-dimethylaniline, triethanolamine, trimethyl amine triethylamine or dimethylethylamine as polymerization initiator, a softener, an anti-oxidant, dimethylol dihydroxy ethylene urea (as cotton cross-linking agent) and magnesium chloride hexahydrate is padded on to a polyester/cotton textile, the textile dried and heated to 170 to 210‹ C. for 2À9 minutes to polymerize the polyepoxide. The textile contains 3% by weight of the polyepoxide.
Patent GB-1039146-A (GB)
Title: Method and apparatus for the clarification of turbid liquids
IPC: B01D21/34
Filed: 1964-09-25
Abstract: 1,039,146. Clarifier tanks. EIMCO CORPORATION. Sept. 25,1964 [Sept. 25, 1963], No. 39141/64. Heading B1D. Turbid liquid is fed into a clarifier tank 1 through hollow rotating arms 23 which have discharging ports 28 at their outer ends which are adjacent the tank wall and at mid depth of the tank well above the settled sludge, so avoiding agitation of the sludge and preventing the formation of positive flow currents. The liquid is introduced through conduit 13 into a tube 18 from where it passes out through ports 29 into the annular space between the tube 18 and a drive column 22 and from there into the arms 23. On each arm a conduit 27 is mounted transversely and directs the parts 28 so that they are substantially parallel with the tank bottom and also with the tank wall, and so that the two parts of any one arm have oppositely facing openings. Sludge is collected in sump 14 after having been raked towards the centre of the tank by blades 24 on the arms. Clarified liquid overflows into a trough 16 supported by a bridge 17 connected to the tube 18 and is removed through conduit 19.
Patent GB-1321756-A (GB)
Title: Mounting for a zoom lens of the optical compensation type
IPC: G02B7/10
Filed: 1971-08-23
Abstract: 1321756 Mount for a zoom lens SOC D'OPTIQUE PRECISION ELECTRONIQUE ET MECANIQUE 23 Aug 1971 [9 Sept 1970] 39448/71 Heading G2J A mount for a zoom lens which has a fixed member 6, two movable members 14 and 20, one on either side of the fixed member 6, and a front member 27 movable for focussing, comprises a tube 1 having at least two angularly equidistant internal projecting segments 3 which are integral with the tube and extend to the bore of a diameter corresponding to the member 6, on which member 6 is mounted in use as a movable member 9 sliding inside the fixed tube consisting of longitudinal elements of the same number as the segments 3 and of angular section complementary to the segments, these elements being connected at one end by extensions in the same angular  segment as the longitudinal elements to a coaxial cylindrical part of smaller diameter than the the fixed lens member, inside which in use one of the movable members is fixed, and at their other end to another coaxial cylindrical annular part inside which in use the other movable member is mounted, and a brush 24 for bearing the movable focussing member which is adjustable in position by screwing on the fixed tube. Stud 30 on one of the elements extends through the fixed tube for zooming.
Patent GB-953212-A (GB)
Title: Process for production of 1,1,3,3-tetramethylolbutan-2-ol
IPC: C08G63/12
Filed: 1960-11-17
Abstract: The invention comprises 1,1,3,3-tetramethylol-butan-2-ol in crystalline form. It may be prepared by reacting 3,3-dimethylolbutan-2-one with formaldehyde in an aqueous medium at 0-35 DEG C. in the presence of a catalytic quantity of a base at a pH of 11.3 to 11.5 to yield 1,1,3,3-tetramethylol-butan-2-on and reacting this with formaldehyde at 40-60 DEG C. in the presence of at least an equivalent amount of a base, the total amount of formaldehyde used being at least 3 moles per mole of dimethylolbutane. The 3,3-dimethylolbutan-2-one may be produced in situ by reacting methylethyl ketone at 0-30 DEG C. with formaldehyde in the presence of water and a catalytic quantity of a base. The total amount of formaldehyde used may be added at the beginning of the first stage of the process. Suitable bases are, for example, the oxides and hydroxides of alkali metals and alkaline earth metals and tertiary and quaternary bases such as dimethylaniline, diethylaniline, trimethylammonium hydroxide and trimethylammonium hydroxide.
Patent GB-964626-A (GB)
Title: Hardener liquid for curing monomeric, polymerisable organic compounds
IPC: C08F4/32
Filed: 1962-10-18
Abstract: A hardener liquid for curing monomeric polymerizable organic compounds or their mixtures with polymers of the monomer and/or with unsaturated polyester resins, comprises a solution of one or more peroxides of alkyl benzoic acids in a plasticizer.  The peroxides are preferably di-o-toluyl peroxide and/or di-m-toluyl peroxide and constitute up to 60% by weight of the hardener liquid. The plasticizer is preferably esters of aliphatic alcohols with polybasic aromatic or aliphatic carboxylic acids, possibly mixed with small quantities or other organic solvents.  The hardener liquids may be used alone as polymerization catalysts or as part of a Redox system. German Specification 1,083,057 is referred to.
Patent GB-1191474-A (GB)
Title: Production of Quinizarin Derivatives
Inventor: JOHNSON GRANNIS SAMUEL
IPC: C09B1/06
Filed: 1967-08-30
Abstract: 1,191,474. Quinizarin derivatives. GAF CORP. 30 Aug., 1967 [12 Oct., 1966], No. 39600/67. Heading C4P. 2 - Methylene - quinizarins in which the methylene group is connected to an alkyl, aryl or heterocyclic residue are obtained by condensing 1 mole of leucoquinizarin with 1 to 1.5 moles of an aliphatic, aromatic or heterocyclic aldehyde at a temperature in the range from 80 to 125 C. in the presence of a polar organic solvent in which the leucoquinizarin and said aldehydes are soluble until the condensation is complete. The invention also comprises 2-alkylquinizarins of the formula wherein n is 8 to 17; and the following quinizarins: 2 - (2 - hydroxybenzyl) - quinizarin, 2(2,4- dichlorobenzyl) - quinizarin, 2 - piperonal quinizarin, 2(4 - chlorobenzyl)quinizarin and 2 - (p - anisyl)quinizarin. Examples are given for the preparation of the compounds. They are useful dyestuff intermediates.
Patent GB-1023388-A (GB)
Title: Improvements in or relating to hydrostatic thrust bearings for hydraulic reciprocating pumps, motors and transmissions of power
IPC: F01B3/00
Filed: 1964-09-29
Abstract: 1,023,388. Hydrostatic transmissions. BENDIX CORPORATION. Sept. 29, 1964 [Sept. 30, 1963], No. 39664/64. Heading F2C. [Also in Division.F1] In a hydrostatic transmission having a rotary cylinder block abutting a valve plate, a hydrostatic bearing is formed between the block and valve plate faces by recesses surrounding the cylinder and/or valve plate ports, the inner and outer peripheries of the faces being connected to the casing pressure. In the embodiment shown, valve plate face 40 has recesses 50 (Fig. 2, not shown) surrounding kidney ports 36, 38. Cylinder block 10 (Fig. 3, not shown) has an annular groove 54 communicating with the casing pressure via cutaways 58, and an annular cut-out 56 communicating with casing pressure via a port 57 and passage 59 in the valve plate. In other embodiments, recesses surround both the cylinder ports and the valve plate ports, or only the cylinder The depth of each recess, or the combined depth of opposed recesses, is between 0.0001 inch and 0.003 inch, and the ratio of the width # 2  of the recess to the distance # 1  of the casing connection from the recess is between 0.4 to 10. Formulµ are given for calculating the various dimensions.