baber/WOPTO huggingface dataset:
Patent GB-391487-A (GB)
Title: Improvements relating to endless track vehicles
IPC: B62D55/108
Filed: 1931-10-29
Abstract: 391,487. Endless-track vehicles. FITZGERALD, J. G., 11, Rothsay Gardens, Bedford. Oct. 29, 1931, No. 30017. [Class 79 (i).] Comprises an endless-track vehicle in which the weight of the vehicle is carried by the axles of a series of rollers 4 running on the tracks 1 and in which the track is driven by one or more driving chains 11, 12 independent of the rollers or their axles but taking the whole of the driving load. In the construction shown the weight of the vehicle is applied to the axles of the rollers 4 as described in Specification 391,502, and the rollers run on roller paths 3 formed on the track members 1 outside flanges 2. The driving chain comprises inner and outer links 11, 12, bushes 14, and pins 13 by which the chain is connected to the track members. The tracks are provided with overlapping groundengaging members 15. The driving chain may be enclosed by the track members, or two driving chains may be employed instead of one.
Patent GB-1172465-A (GB)
Title: Process for producing a layer of the intermetallic superconducting compound Niobium-tin (Nb3Sn) on a support
IPC: C23C16/08
Filed: 1968-06-24
Abstract: 1,172,465. Coating with niobium-tin. SIEMENS A.G. June 24, 1968 [Aug. 4, 1967], No.30098/68. Heading C7F. [Also in Division C1] A super-conducting layer of Nb 3  Sn is deposited on a substrate of e.g. quartz, steatite or aNi base alloy (Registered Trade Mark), "HASTELLOY" by the hydrogen reduction on the heated substrate of a gaseous mixture of a chloride of Nb and a bromide of Sn. A layer of Nb may first be deposited on the substrate by the reduction of a chloride of Nb. The substrate is heated to 900 - 980C. in the gas mixture. Hollow metal cylinders or continuous strips may be coated. As shown in Fig.1 a hollow cylinder 2 and a heater 4 are mounted on a rotatable shaft 3 in a quartz reaction tube 1. Chlorine is passed over heated Nb source 7 and bromine over heated Sn source 5 and H 2  is introduced at 12. Nozzle 16 directs the gas mixture on to the substrate and helium or oxygen may be introduced at 14. Fig.2 (not shown) gives a similar apparatus for continuously coating a moving continuous length of strip.
Patent GB-761114-A (GB)
Title: Manufacture of esters of 17-ª -hydroxy progesterone with a protracted progestational activity
IPC: C07J75/00
Filed: 1954-10-19
Abstract: The invention comprises 17-esters of 17a -hydroxyprogesterone with aliphatic carboxylic acids of 6 or 7 carbon atoms, and their preparation (a) by conventional esterification procedure; or (b) by oxidation of the corresponding 17-ester of 17a -hydroxy-D 5-pregnen-3-ol-20-one.  In examples: (1) 17a -hydroxyprogesterone is shaken with oenanthic anhydride and p-toluene sulphonic acid hydrate under nitrogen in the absence of light, the product refluxed with methanolic hydrochloric acid, pyridine and water added and mixture steam-distilled.  The 17-oenanthate is extracted from the residue with methylene chloride; (2) 17a -hydroxypregnene-(5)-ol-(3)-one-(20)-acetate-(3) is reacted with caproic anhydride and p-toluene sulphonic acid under nitrogen, and the resulting 17-caproate-3-acetate partially hydrolysed with methanolic HCl and then oxidized with aluminium isopropoxide in cyclohexanone to 17a -hydroxyprogesterone 17-caproate.  The 17-oenanthate and also for comparison, the caprylate, are similarly prepared.
Patent GB-1150302-A (GB)
Title: Modified Polyolefin Waxes
IPC: C08F8/32
Filed: 1966-07-05
Abstract: 1,150,302. Modifying polyolefins. UNION CARBIDE CORP. 5 July, 1966 [6 July, 1965 (2)], No. 30193/66. Heading C3P. Adducts of polyolefins and alkyl phosphites or thiophosphites are prepared by reacting a polyolefin wax having a molecular weight of 1000 to 5000 and an average of at least one half of an olefinic double bond per molecule with an alkyl phosphite or thiophosphite having at least one hydrogen atom capable of entering into a free radical addition reaction with an olefinic double bond. Preferred polyolefins are polyethylene, polypropylene and ethylene/propylene copolymers. The resulting adducts may be rendered emulsifiable in water by acid or base hydrolysis, or by pyrolysis of the phosphonate ester groups therein, or by reaction with an amine. Emulsification may be effected by melting the modified adducts with a fatty acid, adding an amine, and then adding water while agitating to form an emulsion. Abrasives, e.g. bentonite and tripoli, silicone oils, mineral spirits, fillers and colorants, may be incorporated in the emulsions which may be used in coating compositions, polishes, adhesives, printing inks and finishing agents for textile materials. Many suitable reactants are specified and examples describe the preparation of adducts from polyethylene waxes and (1 to 33 and 35) diethyl hydrogen phosphite, (36) dimethyl hydrogen phosphite, (37) di-n-butyl hydrogen phosphite, (38) dilauryl hydrogen phosphite, (39) n-hexadecyl dihydrogen phosphite, (40) n-butyl dihydrogen phosphite, (41) ethyl dihydrogen thiophosphite and (42) di-n-heptyl hydrogen thiophosphite; and from an ethylene/propylene copolymer wax and (34) diethyl hydrogen phosphite ; in the presence of a peroxy catalyst and optionally a solvent, e.g. chlorobenzene. In further examples polyethylene/diethyl hydrogen phosphite adducts are rendered emulsifiable by (43 and 46) alkaline hydrolysis, (44 and 45) acid hydrolysis, (47 to 50) pyrolysis, or by reaction with (51 and 61) N,N-di-n-butyl-1,3-propanediamine, (52) N,N-diethyl-p-phenylenediamine, (53) 3-aminomethyl pyridine, (54) ethanolamine, (55) aniline, (56) n-octylamine, (57) N-methyl aniline, (58) di-n-butyl amine, (59) 1-amino-2- propanol, (60) 2-amino-butanol-1 and (62) N,N- dimethylamino ethanol; and emulsified in water using oleic acid and morpholine, acetic acid and an amine/ethylene oxide adduct or sodium alkyl sulphate as emulsifier.
Patent GB-695531-A (GB)
Title: Method of and means for feeding the thread or yarn in skein winding machines
IPC: B65H51/16
Filed: 1951-12-27
Abstract: 695,531. Skein-winding machines. DOELTER, G. C. Dec. 27, 1951 [Jan. 10, 1951], No. 30206/51. Class 120(ii) A skein-winding machine comprises a supply bobbin 23, a rotatable winding device 10, a skein-forming device 18, 19, a conduit 13 guiding the thread in its passage from the bobbin 23 to the device 10, and means for blowing compressed air through the conduit 13 to convey the thread. The device 10, in the form of an arm, is rotated by sprockets 8, 8<SP>1</SP> driven by a motor 9 which also rotates the skein former 18, 19 through a Maltese-Cross mechanism 20. Compressed air, supplied through a pipe 30 and controlled by a valve 31, enters an annular space 35 in the threadfeeding nozzle 26 and escapes through the opening 28a into a funnel-shaped portion 13a of the conduit 13 which may be of glass tubing. The thread 24 is thereby sucked through the suction pipe 29 and conveyed through the conduit 13 to the nozzle 15 thereof whereby it is wound on the horns 19a, 19b of the skein-forming device. This method of feeding the thread is stated to convey it without substantial tension.
Patent GB-193460-A (GB)
Title: Improvements in or relating to the lighting of vehicles or the like by electric lamps
IPC: B60Q11/00
Filed: 1921-11-14
Abstract: 193,460. Goodwin, J. H., and Cowan, C. R. Nov. 14, 1921. Drawings to Specification. Lamp failure alarm and warning d'evices.- Comprises apparatus for indicating to the driver of a vehicle when the vehicle lamps such as the tail lamp are out of action. The lighting current passes through a relay which, when energized, breaks the circuit of a pilot lamp or bell or buzzer, or a combination of these devices, so that when the lighting current fails, the circuit of the warning device is closed. The pilot lamp is of the same size as the principal lamp so that it affords a spare bulb. The pilot lamp socket is mounted on the relay casing, which may be fixed upon the dashboard or let into a recess therein. Reference has been directed by the Comptroller to Specifications 12100/05, 17897/05, 1728/06, 11028/06, 28941/06, 6969/12, 8039/12, and 23732/12.
Patent GB-159625-A (GB)
Title: Improvements in or relating to deisel engine and like valve reseating apparatus
IPC: B23C3/05
Filed: 1919-12-04
Abstract: 159,625. Wilson, H. Dec. 4, 1919. Portable turning apparatus.-In an apparatus particulary adapted for trueing the valve-seatings of Diesel engines the cutter c is secured on a spindle a passing through the valve body band carrying a flanged threaded sleeve d and a boss or ring secured in position by threaded operating reds g<1>. The sleeve d carries a nut c which is tightened on to a collar f in contact with the ring g to force the flanged end of the sleeve against the valve body and bring the cutter into engagement with the seating, feed being applied by tightening the nut after each cut.
Patent GB-465410-A (GB)
Title: Improvements in or relating to liquid pressure remote control apparatus
IPC: F15B7/00
Filed: 1935-11-02
Abstract: 465,410. Hydraulic control systems. CLENCH, E. C. S., and AUTOMOTIVE PRODUCTS CO., Ltd. Nov. 2, 1935, No. 30331. Addition to 443,839. [Class 69 (ii)] In a liquid-pressure remote-control system of the kind described in the parent Specification, means are provided for enabling the master cylinder unit to be re-phased in relation to the slave cylinder unit, which means comprise a relief valve which can open to allow pressure liquid to flow from the master cylinder to the reservoir only when the pressure of said liquid reaches a predetermined valve in excess of the normal working pressure. In the double acting master cylinder unit with cylinders 16, 17 and a reservoir 10, the piston element 28 is bored longitudinally and houses two spring- pressed valve plungers 23 which are pressed to their seats by the action of the lever 13 and an arm 12 which carries a roller 26 in contact with the plunger heads 27. When the lever is unbiassed, the cylinder boxes communicate with the reservoir through passages 28. The cylinders are connected to slave cylinders by pipe lines 33. The cylinder ends communicate with the reservoir through passages controlled by spring-pressed balls 35 when the pressure rises to a predetermined value. Should the slave-cylinder piston reach the end of its stroke before the piston element 28, additional pressure is exerted on the handle 14 to complete the stroke and the cylinder-liquid is forced into the reservoir past the corresponding valve 3. According to the Provisional Specification, the cylinders are formed from tubes. Specification 443,871 is referred to.
Patent GB-408709-A (GB)
Title: Improvements relating to the manufacture of articles from rubber or rubber-like compositions
Filed: 1932-10-28
Abstract: Rubber articles having parts of different physical characteristics, or colours, are made by filling a part of a mould with a rubber composition capable of setting, e.g. as described in Specification 391,511, and before a surface skin has formed, pouring in another sensitive mix, and causing the whole to set into a composite article. The first mix should be brought almost to the point of setting to prevent displacement by the second mix. For making boots a mix is made consisting of 130 gm. of the concentrated latex known under the Registered Trade Mark "Revertex," 1.75 gm. of sulphur, 0.75 gm. of accelerator, 10.25 gm. of zinc oxide, 2.75 gm. of titanium oxide, 2.5 gm. of yellow ochre, 100 gm. of whiting, and 90 cc. of water, and to every 100 gm. of this mix is added 7 cc. of a setting solution consisting of 1900 gm. of ammonium nitrate, 1500 cc. of water, and 77 cc. of .880 ammonia.  When this mix has thickened it is poured into the sole part of a mould containing a core.  The remainder of the mould is filled with a mix consisting of 130 gm. of "Revertex," 1.75 gm. of sulphur, 0.75 gm. of accelerator, 5 gm. of zinc oxide, 5 gm. of pigment, 5 gm. of chromium oxide, 25 gm. of whiting, and 50 c.c. of water with 5 c.c. of the above setting solution diluted with 7 c.c. of water per 100 c.c. of the mix.  The exterior of the mould is heated, and the boot when set is removed, washed, placed on a last and dried and vulcanized.  Specification 391,868 also is referred to.
Patent GB-618288-A (GB)
Title: Improvements in work-holding appliances for use in drilling and other machines
IPC: B25B5/10
Filed: 1946-10-11
Abstract: 618,288. Work-holders. TIMBRELL (BIRMINGHAM), Ltd., W. F., and TIMBRELL, W. F. Oct. 11, 1946, No. 30353. [Class 83 (iii)] A work-holding appliance comprises a frame adapted to be secured to a supporting surface and having a hand-operable screw 11 mounted thereon, a lever 16 having one end jointed to the screw and the other end pivoted to the frame and a work-clamping lever 20 pivoted to the frame and having one end coupled to the lever 16 by a pin-and-slot connection. The lever 20 comprises two laterally-spaced side bars between which the forward end of the lever 16 is disposed. The frame is provided with two series of spaced holes so that the heights of the pivots of the levers 16, 20 can be adjusted.
Patent GB-654345-A (GB)
Title: Improvements in and relating to yarn and like beams for weaving looms and the like
IPC: D02H13/28
Filed: 1948-11-23
Abstract: 654,345. Warp beams. FREEMAN, A., and JOULE, G. F. Nov. 23, 1948 No. 30359. [Class 142(ii)] [Also in Groups VIII and XIII] A warp beam comprises a tube 3, the ends of which engage annular grooves in the inside faces of end members 4, and a central spindle 6 which passes through the tube and end members and is provided with nuts 7 which secure the parts together. The length of the beam can be varied by using tubes of different length. Flanges 5 may be integral with the end members 4. In an alternative construction, the flanges are separated from the members 4 and are mounted on sleeves which slide along the tube. The sleeves are locked in position by bolts which pass through longitudinal slots in the' tube and engage a ring inside the tube.
Patent GB-1194766-A (GB)
Title: Hyperconductive Graphite Structures
Inventor: OLSTOWSKI FRANCISZEK
IPC: H01B1/04
Filed: 1968-06-26
Abstract: 1,194,766. Polyethylene compositions. DOW CHEMICAL CO. 26 June, 1968, No. 30491/68. Heading C3P. [Also in Divisions C1 and H1] A hyperconductive graphite structure having a density of at least 0.07 g./c.c. comprising a compressed vermicular graphite containing between 0.5 and 35 wt. per cent of an intercalating agent selected from Br 2 , FeCl 3 , CrO 2 Cl 2 , SO3, SbCl 5 , CrCl 3 , ICl, CrO 3 , AuCl 3 , InCl 3 , PtCl 4 , CrO 2 F 2 , TaCl 5 , SmCl 3 , ZrCl 4 , UCl 4 , or YCl 3 , is blended with up to 35 wt. per cent of an organic binder such as polyethylene, polyurethanes, phenolformaldehyde or epoxy resins. In Example 8, vermicular graphite is blended with polyethylene powder in a 3:1 wt. ratio and biaxially compressed. The polyethylene was fused by heating the compact to 150‹ C. and a slice of the compact was then immersed in liquid B1 2 . The compact swelled but did not fracture and was found to have specific resistance of 152 microhm-inches.
Patent GB-884827-A (GB)
Title: New sulphonamides
IPC: C07D237/22
Filed: 1959-09-07
Abstract: The invention comprises sulphonamides of the formula <FORM:0884827/IV (b)/1> and salts thereof, in which R1 is hydrogen, C1-6 alkyl, halogen (e.g. Cl) or a free or etherified hydroxy group and Z1 and Z2 are hydrogen atoms or one is hydrogen and the other a C1-6 alkyl radical.  The compounds are prepared by reacting together compounds of the formulae <FORM:0884827/IV (b)/2> wherein one of X1 and Y1 represents an amino group and the other a halogen atom, for example by reacting a toluenesulphonyl chloride with a pyridazine amine. Specified products include 3-chloro-, 3-hydroxy-, 3-methoxy- and 3-ethoxy-, 6 - p - toluenesulphonamido - pyridazine and 3 - chloro - 6 - benzenesulphonamido- and - 6 - o - toluenesulphonamido - pyridazine.ALSO:Pharmaceutical preparations for treatment of diseases of the liver comprise a sulphonamide of the formula <FORM:0884827/VI/1> or a salt thereof, in which R1 is hydrogen, C1-6 alkyl, halogen (e.g. Cl) or a free or etherified hydroxy group and Z1 and Z2 are hydrogen atoms or one is hydrogen and the other a C1-6 alkyl radical (see Group IV (b)) in admixture or conjunction with a pharmaceutical carrier for enteral or parenteral administration.  The preparations suitably take the form of tablets, dragees, solutions, suspensions or emulsions and may contain, in addition to conventional diluents, preserving, stabilizing, wetting or emulsifying agents, salts for controlling osmotic pressure or buffer substances, or further therapeutically useful substances.  Specified salts are those of alkali and alkaline-earth metals.
Patent GB-505436-A (GB)
Title: Improvements in circuits for the operation of electrical switches
IPC: H01H63/20
Filed: 1937-11-08
Abstract: 505,436. Automatic exchange systems. HADFIELD, B. M. Nov. 8, 1937, No. 30531. [Class 40 (iv)] The operating circuit of a switch magnet is such that, on closure, the current rises rapidly to an excessive value until the magnet operates and inserts a resistance to reduce the current to the minimum holding value, so that the magnet operates and releases with a minimum of time-lag. The magnet DM has its windings connected in parallel instead of the usual series connection and when the circuit is closed at a, and the magnet operates, its contacts D remove the short-circuit on resistance r. Each winding may have a resistance of 37À5 ohms and r may be between 100 and 300 ohms. Contacts D are provided with a spark-quenching circuit C1, R1 in addition to the usual circuit C, R for contacts a. Specifications 227,792 and 300,12], [both in Class 40 (iv)], are referred to.
Patent GB-1474650-A (GB)
Title: Hydraulic control system
IPC: E02F9/22
Filed: 1975-07-22
Abstract: 1474650 Hydraulic control circuits GENERAL SIGNAL CORP 22 July 1975 [22 July 1974 (2)] 30585/75 Heading F1P [Also in Division G3] A hydraulic circuit includes a pump 12 driven by a motor 44, actuators 34, 35 and a control circuit 50 connected to both the pump and the motor for permitting the delivery of power to the actuators when the motor is operating up to a predetermined speed, and for stopping delivery of power when the motor is running above the predetermined speed. As described, the circuit is used in a refuse vehicle in which the actuators compress refuse.  When the motor 44 is idling, the pump 12 delivers fluid through a restrictor 18, thus, the difference in pressure between lines 20, 22 is 200 p.s.i. A speed control pump 52 is supplying fluid at a low flow rate through a line 56 and a throttle 58 and at this rate of flow no pressure drop occurs across the throttle 58. The fluid then passes to a reservoir 25 through a check-valve 63 and solenoid valve 160. When the motor 44 speeds up, the pump 12 delivers fluid at a greater rate of flow. The pressure drop across the restrictor 18 increases and this is sensed by a flow control valve 100 via signal lines 20, 22. This causes control plunger 107 to move towards the spring chamber end 104 until a land 108 allows fluid to pass from a line 66 to destroke line 88. Reservoir line 92 is restricted by land 110 and pressure builds up in line 88 and fluid flows through line 90 into destroke chamber 128. Here it moves rod 134 and destrokes the pump 12. If the supply to actuator 34 is cut off by operating a valve 32 pressure in line 16 rises and moves a plunger 136 to the left thus allowing fluid to pass through lines 88, 90 into chamber 128. This causes further destroking of the pump 12. If the motor is speeded up by driving the vehicle, speed control pump 52 delivers more fluid to line 56 and flow is choked by the throttle 58. This causes plunger 78 to move to the left which again causes destroking. Operation of solenoid valve 160 also causes destroking by dead leading the flow from pump 52.
Patent GB-685541-A (GB)
Title: Improvements in or relating to bis-trialkylsilylphenoxysilanes
IPC: C07F7/18
Filed: 1949-11-29
Abstract: The invention comprises organo-silicon compounds of the formula <FORM:0685541/IV (b)/1> wherein R is an alkyl radical, R1 is an alkyl or phenyl radical and c is 0 or 1, and a method of preparing these compounds by reacting a bis-halophenoxy dialkylsilane of the general formula <FORM:0685541/IV (b)/2> wherein R, R1 and c have the above significance and X is halogen, with a silane of the general formula R3SiX by contacting the two reactants with an alkali metal, or by reacting a compound of the formula <FORM:0685541/IV (b)/3> with a compound of the formula R2SiY2 by contacting the two reactants with an alkali metal, R, R1, c and X having the above significance and Y is a halogen atom or an alkoxy radical.  The group R1 may be a methyl, ethyl, octadecyl, cyclohexyl or phenyl radical.  The preferred group R is the methyl group.  In the examples the following compounds are prepared:-  Me2Si(p-Me3SiOC6H4-)2, Me2Si[2-Me-4-(Me3SiO)C6H3-]2, Et2Si(o-C6H4OSiMe3)2, <FORM:0685541/IV (b)/4> and Me2Si(p-C6H4OSiMe3)2.  Specifications 685,538 and 685,539 are referred to.
Patent GB-1334656-A (GB)
Title: Reactive dyestuffs
IPC: C09B62/20
Filed: 1972-06-30
Abstract: 1334656 Reactive dyes BAYER AG 30 June 1972 [1 July 1971] 30725/72 Heading C4P The invention comprises reactive dyes of the general formula D-A where D is a dyestuff radical and A is a group of the general formula wherein R is H or alkyl, R 1  is H or a substituent atom or group, R 2  is an alkyl, aryl or heterocyclic group, W is a direct bond or a bridge member to a carbon atom of an aromaticcarbocyclic or aromatic heterocyclic ring of the chromophore of D, X is -O- or -S- and n is 1, 2, 3 or 4. Preferred dyes contain sulphonic and/or carboxylic acid groups, W is a direct bond and R is H or methyl. The dyes may be of the mono- or polyazo, azaporphin, anthraquinone, oxazine, dioxazine, triphenyl-methane, nitro, azomethine mono- and di-benzanthrone series and may also be polycyclic condensation compounds of anthraquinone, or mono- or dibenzanthrones. They are prepared by (a) introducing into a dyestuff or dyestuff intermediate by known methods at least one group of the general formula linked via the group -W-N(R)- and when an intermediate starting material is used this is converted by known methods, e.g. azo coupling or condensation into a dyestuff, (b) reacting a corresponding dyestuff containing n difluoropyrimidine radicals with 1 to n mol. of a compound R 2 -X-H. The dyes give red, blue and scarlet shades on natural or regenerated cellulose, wool, silk, synthetic polyamides and polyurethanes.
Patent GB-862901-A (GB)
Title: Improvements in apparatus for machining by electric spark discharges
IPC: B23H1/02
Filed: 1957-10-01
Abstract: 862,901. Cutting by spark erosion. CENTRE NATIONALE DE LA RECHERCHE SCIENTIFIQUE. Oct. 1, 1957 [Oct. 8, 1956], No. 30742/57. Class 83 (4). In a spark-machining apparatus means are provided responsive to the spark discharges for producing during the end of each discharge a temporary reduction in the amplitude of the electric field existing between the electrode 1 and workpiece 2. This is stated to decrease tool wear. A winding 5 preferably on a ferrite ring is disposed about one of the conductors leading from a spark source 4 to the spark gap. During the discharge a voltage is induced in the winding 6 and is applied through potentiometer 6 and rectifier 7 across the electrode 1 and workpiece 2. This applied voltage is of opposite polarity to the source voltage and hence reduces the field strength whereby flow of ions to the electrode is reduced. A decoupling condenser 8, Fig. 2 (not shown) may be included in the circuit and full-wave or bridge rectifiers may be used, Figs. 3, 4 (not shown). These rectifiers are preferably germanium or silicon type semiconductors. The voltage impulse may be amplified by electronic devices. In addition the impulse may be applied to a vibrator 9 which temporarily increases the spark gap at the end of each discharge period. The vibrator, which may be of electromagnetic, piezoelectric or magnetostrictive type, may be controlled by the spark discharges through a delay system.