baber/WOPTO huggingface dataset:
Patent GB-916217-A (GB)
Title: Graft copolymers
IPC: C08F265/04
Filed: 1959-05-05
Abstract: Relates to graft copolymers of (a) a polymer of one or more methacrylates of the formula CH2=C(CH3)COOR, where R represents a saturated hydrocarbon group having from 3 to 18 carbon atoms, and (b) one or more of the following monomers, viz. alkyl acrylates and thioacrylates in which the alkyl portion contains from 1 to 18 carbon atoms; alkyl methacrylates and thiomethacrylates in which the alkyl portion contains from 1 to 18 carbon atoms; hydroxy-substituted alkyl vinyl ethers in which the alkyl portion contains from 2 to 18 carbon atoms and in which there are one or two hydroxy groups on the alkyl portion but never more than one hydroxy group on any one carbon atom and no hydroxy group is closer than 2 carbon atoms to the ether oxygen; alkanamidoalkyl vinyl ethers in which the non-vinyl portion contains from 3 to 23 carbon atoms; vinyl alkyl sulphides in which the alkyl portion contains no more than 18 carbon atoms; hydroxy-substituted alkyl vinyl sulphides in which the alkyl portion contains from 2 to 18 carbon atoms and in which there are one to two hydroxy groups on said alkyl portion but never more than one hydroxy group on any one carbon atom and no hydroxy group is closer than two carbon atoms to the sulphur atom; substituted aminoalkyl vinyl sulphides of the formula <FORM:0916217/IV(a)/1> in which A represents a C2-C18 alkylene group, R1 and R2 (when not joined together) each represent a C1-C8 alkyl group and (when joined together) collectively represent an alkylene group which together with the nitrogen atom forms a 5- or 6-membered heterocyclic amino group; N-vinyl lactams and alkylsubstituted N-vinyl lactams containing from 6 to 20 carbon atoms; alkyl vinyl sulphones in which the alkyl portion contains no more than 18 carbon atoms; N-vinyl-alkyleneureas containing from 5 to 12 carbon atoms; N-vinyl-N1-aminoalkyl-alkyleneureas containing from 7 to 20 carbon atoms; analogues of the above-listed monomers which differ only from such monomers in respect of the replacement of at least one saturated acyclic hydrocarbon group by a saturated cyclic hydrocarbon group which contains no more carbon atoms than the ones specified above for the group it replaces; acrylonitrile; methacrylonitrile; acrylic acid and methacrylic acid.  The graft polymers are prepared by exposing the monomer and polymer to high energy radiation, particularly gamma rays, with preferably the polymer swollen by or dissolved in the monomer, or with both monomer and polymer dissolved in a common solvent.  Examples describe the production of graft polymers from (a) poly(cyclohexyl methacrylate) and methyl methacrylate, (b) poly(isopropyl methacrylate) and methyl methacrylate or acrylonitrile, (c) poly(butyl methacrylate) and methyl acrylate, methacrylonitrile, or methyl methacrylate, (d) poly(2-ethylhexyl methacrylate) and ethyl methacrylate or butyl vinyl sulphide, (e) poly(octadecyl methacrylate) and methyl methacrylate, (f) a copolymer of octyl and methyl methacrylate and isobornyl methacrylate and (g) poly(dodecyl methacrylate) and N-vinyl pyrrolidone or acrylic acid.
Patent GB-726668-A (GB)
Title: Process for the production of a dispersion of polyethylene
IPC: C08J3/09
Filed: 1952-06-19
Abstract: A polyethylene dispersion is obtained by dissolving polyethylene in an organic compound in which solution is possible only at elevated temperatures, cooling the solution to a gel, dispersing the gel in an organic compound which is miscible with the other and can for the greater part be separated mechanically from the dispersion, e.g. by filtering, suction filtration or centrifuging, mechanically separating a large part of the organic compounds from the dispersion, and adding another organic liquid which is miscible with the dispersion.  Examples of solvents are benzine of b. pt. 120-140 DEG C., trichloroethylene and benzene; of miscible compounds, isopropyl alcohol, ethylene glycol and methyl ethyl ketone; and methyl alcohol and benzine are specified as the third organic liquid.
Patent GB-1526671-A (GB)
Title: Television apparatus
IPC: H04N9/76
Filed: 1977-04-14
Abstract: 1526671 Colour television ROBERT BOSCH GmbH 14 April 1977 [14 April 1976] 15500/77 Heading H4F Switching between two colour television signals is achieved using separate mixers 7, 8 for the chroma and luminance signals respectively, the changeover period for chroma being longer (200-350 ns) in order to reduce the introduction of high frequency interference which produces fring- ing, or a vertical saw-tooth structure. Mixer 8 is preferably an electronic switch and mixer 7 is preferably an "X-mixer". Circuits 3, 5, 9 and 4, 6, 10 separate the chroma and luminance from each incoming television signal.
Patent GB-1069317-A (GB)
Title: Processing of oxidic ores
IPC: C22B1/14
Filed: 1965-04-12
Abstract: A preshaped body for coking is as described in Specification 1,068,989, but the finely divided non-coking material comprises iron ore, which term includes hematite, limonite, magnetite and siderite. A finely divided fluxing material, e.g. limestone, rock dust, dolomite, fluorspar, hydrated lime or soda ash may be incorporated, preferably in a ratio in the range 6: 1 to 3: 1 (ore to flux).  The coking method and the coking apparatus are as described in the other Specification.ALSO:An ore briquette comprises 35 to 75% by weight of coking coal, 65 to 25% by weight of finely divided iron ore or a mixture thereof with a slag-forming material, and 3 to 40 parts by weight per 100 parts solids of a liquid hydrocarbon which is capable of continuous gasification during coking.  The ore fines may be produced by the Taconite process, or hematite, limonite, siderite or magnetite may be used.  Particle sizes should be less than 50 S.M. (Tyler), preferably 70% minus 200 mesh. Fluxes mentioned are limestone, rock dust, dolomite, fluorspar, hydrated lime, and soda ash, and ratios (ore to flux) are 8 : 1 to 1 : 1. The liquid hydrocarbon should be one a major portion of which gasifies over the range 260 DEG  to 600 DEG  C., examples being Bunker C oil, No. 6 fuel oil, residual fuel oils, asphalt, and tar oils. After admixing, the body is shaped by a conventional briquetting or pelletizing process and the bodies are coked on a travelling grate, see Fig. 1 (not shown).
Patent GB-1534986-A (GB)
Title: Thromboxane intermediates
IPC: A61K31/343
Filed: 1977-04-14
Abstract: 1534986 Silylated lactone compounds UPJOHN CO 14 April 1977 [14 April 1976] 15554/77 Heading C3S [Also in Division C2] The invention comprises tetrahydrofuran-2- one derivatives of the formula wherein Z 1  and Z 2  each are H or SiG 3 , with the proviso that if Z 2  is SiG 3  then Z 1  is not H, in which the G's are the same or different and are C 1-4  alkyl, C 7-12  aralkyl or phenyl optionally substituted once or twice by fluorine or chlorine atoms or C 1-4  alkyl radicals, and OR 31  is an esterified or etherified hydroxy group, and their preparation by silylation of the corresponding compound in which Z 1  and Z 2  are H or those in which Z 2  is H.
Patent GB-898570-A (GB)
Title: Improvements in or relating to presses
Inventor: SOULSBY NORMAN HENRY
IPC: B30B15/04
Filed: 1959-05-06
Abstract: 898,570. Hydraulic presses. JONES Ltd., WILLIAM. April 29, 1960 [May 6, 1959], No. 15574/59. Class 69 (2). The frame of an hydraulic press comprises an arch, the straight limbs 1, 2 of which are arranged to withstand the tensile forces in the frame, and the curved portion 3 of which encloses a structure 4 ... 7 arranged to resist the bending moments in the frame, which arise in the use of the press. The structure may consist of a head plate 5 and one or more struts 4 welded between the limbs with web plates 6, 7 filling the spaces between the head plate, struts and curved portion 3. A block 8 is inserted between the limbs and has a cylinder for a ram 12 carrying a platen 13 which is guided between slideways 16, 17 fitted to the inside of the limbs 1, 2 ; the slideways may be of dovetail or rectangular section. Pins 18, 18A on the platen 13 extend through slots in the frame and are connected to springs 19, 19A or single- or double-acting piston-and-cylinder devices for retracting the platen at the end of a pressing operation. A further piston-andcylinder device may be incorporated in the ram 12 for the ejection of workpieces. In another embodiment, the frame consists of two arches, the space between which may serve as a guide for the platen. In a further embodiment the lower ends of the limbs are connected by a curved portion. The press may be inverted to form a downstroke press.
Patent GB-567960-A (GB)
Title: Improvements in electric hand torches
IPC: F21L4/00
Filed: 1943-09-24
Abstract: 567,960. Battery lamps. OLIVER, G. F. N. Sept. 24, 1943, No. 15691. [Class 39 (ii)] [Also in Group XXXVII] A torch head comprises a casing 2 adapted to be secured to a battery casing and having a slot 16 through which projects a pivoted switch member 10 forming part of an assembly within the casing and mounted to rock between on and off " positions in normal use, but, when the head is detached from the battery casing and the assembly partly withdrawn, being able to rock into a further position in which it lies wholly within the casing 2, from which the assembly can then be fully withdrawn. As shown in Figs. 2 and 7, the assembly comprises a reflector 5, glass 6, and an insulating body 3 having a central recess in which a bulb holder 4 is mounted and side recesses 7-9. The switch member is pivoted within recess 8 on a, portion 14 of a curved spring wire 20, making contact with the wall of the casing 2. the switch comprising a dolly which contains a contact 12 urged outwardly by a spring 13 either against the wall of recess 8-as in Fig. 2, which shows the switch in the '' off" position-or against a contact plate 15 connected to the metal bulb holder. A plate 17 slides with the dolly and serves as a cover for slot 16, whilst providing definite `` on " and off "stops. In the " off '' position, the lower edge of the plate engage a flange on a, retaining ring 25 for the bulb holder; whilst in the " on " position the opposite edge of the plate engages the rim of the reflector. Partial withdrawal of assembly allows further upward movement of plate 17, as shown in Fig. 4, when the dolly becomes wholly within casing 2 which can then be completely removed. The switch passes between one dead-centre position in moving between the " on " and off positions, and through a second in moving to the " withdrawing " position.
Patent GB-326412-A (GB)
Title: Improvements in and relating to rotary fans
IPC: F04D29/58
Filed: 1929-05-21
Abstract: 326,412. Saunders, A. May 21, 1929. Impeller blades; driving.-A rotary fan has inclined projections B which are secured or cast on the hub shell C and blades A are detachably secured to these projections. The hub C has cavities D separated by parts F and part of the periphery is cut away as shown at E. The parts F act as blades and urge gas away from the centre of the impeller through the gaps E. The end of the hub C has a tapered surface N which forms one side of the driving pulley the other being formed by the surface P of the disc O. A number of washers R take up the requisite space between the surfaces N, P, and the parts are held on the flanged bush G by the nut K. In a modification the driving pulley has a number of distance pieces which render it suitable for driving by a flat belt.
Patent GB-1130844-A (GB)
Title: Improvements in or relating to roof gutters or guttering
Inventor: SHAW REGINALD JOHN
IPC: E04D13/064
Filed: 1966-04-12
Abstract: 1,130,844. Laminated guttering. H. H. ROBERTSON CO. 29 March, 1967 [12 April, 1966], No. 15886/66. Heading B5N. [Also in Division E1] Roof guttering comprises an outer metal sheet 20 and an inner metal sheet 22 between which is a layer 24 of a foamed plastics material, e.g. polyurethane. On the sheet 22 is a layer of butyl rubber 26 or bituminized felt.
Patent GB-129361-A (GB)
Title: Improvements in Fuze Setting Mechanism for Automatic Guns.
Inventor: MANSELL JOHN HERBERT
IPC: F42C17/00
Filed: 1917-10-31
Abstract: 129,361. Mansell, J. H., Redpath, R., and Hellberg, H. Oct. 31, 1917. Machine guns.-Consists mainly in the combination of a longitudinally reciprocating breechbolt, means for feeding cartridges to the gun, and a projectile-fuse setter actuated by the movement of the breech-bolt. In the form shown, the cartridge-feed mechanism is of the kind described in Specification 126,346 and is actuated by a vertically sliding rod 7, Fig. 4, provided with a spring plunger 5 engaging a longitudinal groove 4, Fig. 1, along one side of the breech-bolt 3. The fusesetter comprises a segment 35, Figs. 1, 2 and 3, in mesh with a toothed time-ring 36 of the projectile fuse, and a segment 25 in mesh with a segment 24 on a longitudinal shaft 23 which is rocked by a vertically sliding rod 8 provided with a spring plunger 6 engaging the aforesaid longitudinal groove 4 in the breech-bolt. The spindle 26 of the segments 25, 35 is adjustable longitudinally by means of a bell-crank lever 30, moving opposite a graduated sector 33, in order to give a set to the segment 35 by means of a spiral feather to adjust the time-setting to be given to the fuse. The vertically sliding rods 7, 8 are reciprocated to set the fuse and feed the cartridge at the beginning of the forward movement of the breech-bolt by means of a branch groove 4a, into which the plungers 5, 6 are driven by a shoulder in the groove 4 formed by a deepening of the forepart of the groove. While the fuse-setter is at work, the cartridge base 40 is gripped by a lever- 39 pressed by a grooved spring sleeve 44 on the spindle 23; and when the setting is competed, the cartridge is moved forward by a spring-controlled lever 46 by the action of a cam 49 on the spindle 18 of the cartridge-feed mechanism, in order to disengage the time-ring 36 from the segment 35 before the cartridge is fed from the magazine to the gun.
Patent GB-653190-A (GB)
Title: Improvements in and relating to nesting or laying boxes
IPC: A01K31/16
Filed: 1948-06-14
Abstract: 653,190. Nest-boxes. SULLIVAN, T. P. June 14, 1948, No. 15935. [Class 5(ii)] A nest-box assembly comprising a floor or seat consisting of a canvas strip detachably secured to a frame and divided by members 4 into dished compartments, each having an aperture 5, is hinged to a support 6 inside a poultry house. The assembly also comprises a pivoted egg-receiving platform 9 of wire-netting stretched on a frame, the platform sloping downwardly and rearwardly towards a tray 14. The tray 14 may be withdrawn from the exterior of the house through a longitudinal slot in the wall. The tray may be hinged to the platform so that tray and platform can slide together or the platform be pivoted relative to the tray. Pins 20 on the platform frame rest on ledges 21 on the floor frame so that the platform and floor can slide relatively to each other. The front edge of the assembly is supported by chains 22 engaging hooks 23 on the wall of the house. The assembly can be retracted against the wall by pulling a cable 24 which is secured by a finger-ring 26 placed over a screw 27. A wire may be stretched along the tray to act as a cushion for eggs rolling on to it. In a modified construction the nest floor is hinged to the platform along the forward edge access to the platform being obtained by lifting the floor. This assembly is provided with dowel pins removably engaging in sockets in supports fixed to the house. The apertures 5 may be closed by spring-loaded flaps 46, Fig. 8, these flaps together with their loading springs 48 being supported on wire-netting placed immediately beneath the canvas strip 1.
Patent GB-1132156-A (GB)
Title: Improvements in or relating to methods of preparing ammonium paratungstate
IPC: C01G41/00
Filed: 1966-04-12
Abstract: 1,132,156. Ammonium paratungstate. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 12 April, 1966 [15 April, 1965], No. 15982/66. Heading C1A. Ammonium paratungstate is prepared by reacting an aqueous suspension of tungstic acid with ammonia at a temperature of at least 80‹ C. for at least 45 minutes, the pH of the aqueous medium being maintained from 7 to 8 during the reaction, and separating the ammonium paratungstate formed. Beyond a certain degree of dilution of the starting tungstic acid solution, it may be necessary to add ammonium nitrate to the reacted reaction mixture in order to precipitate the ammonium paratungstate.
Patent GB-1419720-A (GB)
Title: Universal time watch
IPC: G04B19/22
Filed: 1974-04-10
Abstract: 1419720 One-way brakes TIMEX CORP 10 April 1974 [26 Dec 1973] 16031/74 Heading F2E [Also in Divisions G2-G3] In a watch having a regular hour hand 15 fixed on a spindle 14 carrying an hour wheel 13, and an auxiliary hour hand 17 fixed on a spindle 16 which is rotatably mounted on the spindle 14, a resilient disc 18 fixed to the spindle 16 ensures that the latter is normally driven by the wheel 13 through friction at the periphery 27 of the disc, and a fixed spring stop member 19 forms a ratchet coupling with the disc 18, (see also Fig. 3), to prevent anti-clockwise rotation of the auxiliary hand 17 and thus permit setting of conventional minute and hour hands 12, 15 separately therefrom. The hour wheel 13 and a wheel 30 fixed to minutes cannon pinion 11 are normally driven from seconds hand shaft 3 via a minute pinion and wheel 10, 7. A crown toothing 8 on the wheel 7 is engaged for setting when stem 9 is pulled out. The disc 18 has a set of raised tabs 24, Fig. 3, facing anticlockwise on its side adjacent the stop 19. The latter comprises a ring 21 with inner tabs 22 which are located in holes 28 in dial 20 and having outer radial arms 23 forming the ratchet coupling by resilient engagement with the tabs 24.
Patent GB-642024-A (GB)
Title: An improved electro plating plant
IPC: B65G49/04
Filed: 1948-06-15
Abstract: 642,024. Electroplating plant. BRIGHTSIDE PLATING CO., Ltd., and NEALE, C. F., June 15, 1948, No. 16046. [Class 41] A vat supporting transverse anode rods 6 and cathode rods 7 disposed alternately in spaced parallelism, is provided with a superstructure 5 which carries a horizontal shaft 10 provided with worms 12 engaging worm-wheels 13 on transverse spindles 14. Each spindle has a chain-wheel 15 beneath which are a pair of dual guide members 16 of channel section, each member comprising two limbs 16a, 16b which converge at the bottom to a point above a cathode bar 7. Between each pair of guide members 16 is slidably mounted in each limb a frame 17, and these frames are connected by a chain passing over the chain-wheel above so that as one frame is elevated the other is depressed. Each frame is cranked and at its lowest extremity is pivotally connected to a hook member 18 with spring arms which engage an article, for example, a cycle rim 20. The chain-wheels 17 are given intermittent oscillatory movement through the worm gearing 10, 13, and reduction gearing 8a, by means of an electric motor 8, the movement of which is controlled by a timer and contactor in conjunction with a trip switch 11 and a magnetic brake. The arrangement is such that a cycle rim 20 connected to a hooked member 18 is plated while an associated hooked member is in a raised position so that a plated rim may be removed and a fresh one attached for subsequent immersion when suspended from the same cathode rod 7.
Patent GB-673292-A (GB)
Title: Improvements in the control and operation of washing machines
Inventor: SCHWAMM KARL
IPC: D06F34/08
Filed: 1950-06-27
Abstract: 673,292. Washing-machines. POENSGEN AKT.-GES., GEB. June 27,1950, No. 16073/50. Class 138 (ii). In a sequence regulator for a clothes washing machine in which the washing is effected in a container, the water to be used at each step is measured in a separate container and is heated therein to the required temperature, the lye is measured in another separate container and the filling of the measuring containers and heating of the water is controlled and the discharge into the washing container is effected by automatic means. In the arrangement shown, in which water and lye containers 1 and 5 are connected through valves 3 and 6 respectively to a washing machine 2, having a drain valve 4, water which is admitted to the container 1 through a valve 11, is heated by a coil 8 controlled by a steam valve 9. The quantity and temperature of the water are controlled by a contact-contents indicator 14 and a thermometer 13, respectively. Valves 3, 4, 6, 9 and 11 are actuated by a pressure medium through control valves 23, 24, 25, 26 and 27 which are housed in a casing 28 and which co-operate with pins 16 ... 22 on a regulating drum 15. The valves 23 ... 26 are normally kept closed by springs, valves 23 and 24 being retained in open position by pawls actuated by solenoids 31 and 32 connected through switches 33 and 34 respectively with the thermometer 13 and indicator 14. In operation, stepwise rotation of the drum 15 opens valves 3 and 6 to charge the machine 2 with water and lye and then closes valves 3 and 6 and opens valves 9 and 11 to admit steam and water to the container. Switches 33 and 34 are subsequently closed by segments 35 and 36 on the drum 15 until solenoids 31 and 32 are energized by the indicator 14 and thermometer 13 to release control valves 23 and 24 and close valves 9 and 11. The filling and heating of container 1 corresponds to a washing or rinsing interval in the machine 2 after which continued rotation of drum 15 opens and subsequently closes valve 4 and thereafter opens valves 3 and 6 for the next washing or rinsing process. If several washing steps are used, a separate lye container is used for each step and several thermometers or one thermometer having several tappings may be provided. The indicator may also have several tappings or may comprise a float measuring device. Cold soft water, hot soft water and untreated water which may be supplied to the container 1 at different steps in the washing process are each controlled by valves similar to those for actuating valves 9 and 11. A separate switch with corresponding drum segment is provided for each desired temperature or water quantity.
Patent GB-641133-A (GB)
Title: Improvements in means for cooling brakes and brake drums of motor vehicles
IPC: B60K11/00
Filed: 1948-06-16
Abstract: 641,133. Cooling brakes. AUSTIN MOTOR CO., Ltd., RIX, J. R., and STANFIELD, J. R. June 16, 1948, No. 16145. [Class 103 (i)] The brakes on the front wheels of a motor vehicle are cooled by means of an air collector 6, located in the space between the apertured front plate or grille 3 and the radiator 1, which directs a stream of air on to the brake drums 7. Although, as shown, the air is directed on to the outside of the brake back-plate, it may be led by means of a flexible tube into the space enclosed by the drum.