baber/WOPTO huggingface dataset:
Patent GB-1144634-A (GB)
Title: Improvements in and relating to vulcanizable rubber compositions
IPC: C08K5/372
Filed: 1965-09-09
Abstract: 1,144,634. Vulcanizing rubber. DUNLOP CO. Ltd. 31 Aug., 1966 [9 Sept., 1965], No. 38523/65. Headings C3E, C3P and C3Q. A vulcanizing agent for natural or synthetic sulphur-vulcanizable rubbers comprises a polymeric polysulphide of formula (S n RS  m ) x  in which R represents a divalent organic radical, n and m each represents an integer having a valve of at least 1, and x represents an integer having a value of more than 1. A suitable compound is poly-(methylene tetrasulphide). Part of the polysulphide may be replaced by sulphur. The polysulphide is used in conjunction with conventional accelerators and retarders-not all of which retard vulcanization in these conditions. It is not necessary for zinc oxide or stearic acid to be present. Rubbers vulcanized are natural rubber, SBR and their mixtures, polybutadiene and EPT rubber.
Patent GB-1478496-A (GB)
Title: Fibre polyurethane foam for ballistic protection
IPC: B29C67/20
Filed: 1974-09-04
Abstract: 1478496 Fibre reinforced polyurethane foam NATIONAL AERONAUTICS & SPACE ADMINISTRATION 4 Sept 1974 [19 Sept 1973] 38656/74 Heading D1R [Also in Division C3] A closed-cell, semi-rigid solid foam matrix wherein the foam consists of closed cell polyurethane with fibres impregnated therein, the fibres being randomly oriented parallel to the major dimension of the foam matrix may be prepared by applying a mixture of a polyurethane forming material, a blowing agent and fibres to a surface generally at an application rate of from 2-25 pounds per minute. The mixture may be applied by frothing, or pouring, or more preferably by spraying. The amount of fibres used is preferably 5-30% wt of the foam formulation and the fibre length is preferably from 1-2¢ inches. The polyurethane-forming reactants are preferably a polycyclic aromatic polyisocyanate of the formula wherein n = 2-10, and a multifunctional polyol of the formula wherein R is hydrogen or a C 1 -C 8  alkyl radical or aryl radical or a saccharide unit and R' is an alkylene or polyoxyalkylene radical. The polyol used in the Examples is the polyoxypropylene derivative of methyl glucoside, or a vinyl reinforced polyoxypropylene glycerine derivative having a grafted nitrile functionality. The foam formulation may also include halogen containing polymers e.g. polyvinylidene chloride or fluoride or a terpolymer of vinylchloride, vinylacetate and maleic anhydride; fire-retardants e.g. tris(dichloropropyl)phosphate, tris(2, 3 dibromopropyl)phosphate, KBF 4 , NH 4 HCO 3 , NH 4 Cl, NaCl, Na HCO 3 , ZnO, Sb 2 O 3 , NH 4 BF 4  and potassium silicofluoride, surfactants e.g. methylsiloxane resin or a siloxane glycol copolymer; and a catalyst e.g. triethylenediamine or tri(dimethylaminoethyl)phenol. Suitable fibres are glass, quartz, silica, E-glass, nylon and elastic fibres, silicon rubber strips, nylon fibres coated with polyvinylidene fluoride, and rubber bands. Suitable blowing agent is FREON (RTM). Uses:- Heat insulating, fire-resistant and ballistic resistant material for aircraft.
Patent GB-357031-A (GB)
IPC: A47H15/02
Filed: 1930-12-23
Abstract: 357,031. Suspending curtains. VOLLMANN, F. (trading as VOLLMAN & SCHMELZER), Iserlohn, Westphalia, Germany. Dec. 23, 1930, No. 38659. Convention date, Jan. 3. [Class 52 (v).] A curtain runner consists of a frame carrying a cap which encloses the upper half of a roller, the cap having recesses which form bearings for the roller axle. In the construction shown a sheet metal frame a carries a cap e having V-shaped recesses g to receive the axle h of a roller d which passes freely through a circular aperture c in the frame. The cap is attached to the frame by passing a bifurcated extension f of the frame through a slot in the top of the cap. The roller and its axle are preferably integral. In modifications the frame is made of wire and the cap may be open at the top.
Patent GB-1116709-A (GB)
Title: Improvements in pneumatic tools having exhaust noise reducing means
IPC: B25B21/00
Filed: 1966-08-31
Abstract: 1,116,709. Exhaust silencers. ATLAS COPCO AKTIEBOLAG. Aug. 31, 1966 [Sept. 10, 1965], No. 38768/66. Heading F1B. [Also in Division B3] A pneumatic screwdriver or drilling machine 10, Fig. 1, comprises a rotary vane-motor, an annular exhaust duct 32, and two rings 36 of rigid porous material, which reduce the noise of the exhaust issuing from the exhaust passages 27. The rings may be made of porous sintered bronze having lugs 37, for axially spacing the rings. Three porous rings (40), Fig. 4 (not shown), may be provided, spaced by sleeves (41). In a modification, the exhaust duct (32), Fig. 6 (not shown), is arranged so that the exhaust is directed forwardly on to the work. In a further modification, the duct (32'), Fig. 7 (not shown) is arranged adjacent the hand grip (30). In another modification, the duct (32"), Fig. 8 (not shown), has a flange 53, and radial outlets 54 direct the exhaust in a radial direction.
Patent GB-1366957-A (GB)
Title: Gear machine
Inventor: HAERLE HERMANN
IPC: F16H55/08
Filed: 1971-08-18
Abstract: 1366957 Gear-grinding; gear-shaping F W F VON HOHENZOLLERN [trading as FURSTLICH HOHENZOLLERNSCHE HUTTENVERWALTUNG LAUCHERTHAL] 18 Aug 1971 [20 Aug 1970] 38774/71 Headings B3K and B3L [Also in Divisions F1 and F2] In gearing comprising an internally toothed outer gear-wheel 1 meshing an externally toothed inner gear-wheel 2, the tooth flanks 1a, 1b of the outer gear-wheel in sections normal to its axis are shaped by grinding and defined at least in the upper half of the height of the teeth by curves of constant distance from and radially outside one or two like hypocycloids H formed by rolling a rolling circle R on a base circle F that is concentric about the axis of the outer gear-wheel, the ratio of the radius rR of the rolling circle to the radius rF of the base circle F being an aliquant fraction of which the denominator is equal to the number of teeth of the outer gear-weheel and of which the numerator is equal to at least two and at most the number of teeth of the outer gear-wheel minus two, and the tooth form of the inner gear-wheel 2 in the region of engagement is approximately conjugate to the teeth of the outer gear-wheel 1 in the region of engagement. A method of grinding the tooth flanks of the outer gear-wheel 1 comprises grinding the tooth flanks whilst rotating the outer gear-wheel about its axis at a predetermined speed and simultaneously rotating the axis of the outer gear-wheel at a different speed about a second axis parallel to the outer gear-wheel at a different speed about a second axis parallel to the outer gear-wheel axis at a distance therefrom equal in length to the radius of the base circle diminished by the length of the radius of the rolling circle, the radius of the rolling circle, the ratio of the speeds of rotation being equal to the ratio of said distance to the radius of the base circle. Apparatus for carrying out this method comprises a base 10, Fig. 4, rotatably carrying an eccentric shaft 12 on which is rotatably mounted a work-table 18 to which a gear-wheel 1 is clamped. A disc 13 is secured to the shaft 12 and carries two meshing pinions 14, 15, the pinion 14 meshing teeth 16 on the base 10 and the pinion 15 meshing teeth 17 on the work-table 18. A grinding element 7 is mounted on a support 21 and is driven by a motor 23. The work-table 18 is driven by a pinion 19 from a motor 20. This apparatus may be modified as shown in Fig. 7, in order to generate a set of gear teeth on the inner wheel 2 which is clamped to a supplementary coverplate 30. A vertically reciprocating tool drive 32 carries a segment 34 of an internally toothed gear as the tool. In a further embodiment, shown in Fig. 9, a grinding disc 44 is mounted in an arm 43 which at one end can swivel about an axis 42, and at the other end is guided in a sliding block 50 carried by an arm 51 fast on gear-wheel 19.
Patent GB-1373043-A (GB)
Title: Drive for a workpiece supply mechanism
IPC: B23Q7/02
Filed: 1972-08-21
Abstract: 1373043 Cams; gearing; valves FELSS GEBR 21 Aug 1972 [18 Sept 1971] 38853/72 Headings F2K F2Q and F2V A mechanism for converting an oscillating motion of an input member 1, which is rotated back and forth by a rack 6 engaging teeth 7, into an alternately rotary and reciprocating motion of an output member 2 comprises a cam slot 13 in the input member engaged by a cam follower 11 on a finger 10 attached to the output member 2, the output member 2 being urged axially by a spring 4 and being rotated upon rotation of the input member 1 until a stop 14 thereon meets an angularly adjustable fixed stop 15, which, by preventing further rotary movement of the output member 2, causes it to move axially until a further stop 17 is met, as the input member 1 continues to rotate and the cam follower 11 moves in the cam slot 13. When the input member 1 moves back this sequence occurs in reverse, there being a further stop 16 at the opposite limit of the movement of member 2 so that the member 2 will again be reciprocated. A cam 24 on a drum 21 fixed to the input member engages cam followers 26, 27 to control the rate of rotation (and so the reciprocation) of the output member by throttling the supply of fluid to a double acting cylinder 8, 9 to the ends of which the fluid is supplied to reciprocate the rack 6. Valves.-A valve provided for control of the ingress and egress of pressure fluid to and from the cylinder 8, 9 comprises a valve disc 34, Fig. 5, biased by a spring 33 to engage a seal 37 with a shoulder 32, this disc 34 having a through bore 35 with a throttling needle 36. Pressure fluid supplied in direction B lifts the disc against the spring 33 to pass around the seal 37, and pressure fluid in direction C passes through bore 35, throttled by the needle valve. A cap 43 can be manually screwed to adjust the throttle valve, and the end portion 44 of the needle 36 is engageable by a control cam 24 to provide adjustment of the valve during operation of the mechanism to control the rate of movement of the piston.
Patent GB-1284561-A (GB)
Title: Disruption and cutting of rocks, glass and the like
IPC: E21C37/18
Filed: 1969-08-06
Abstract: 1284561 Heat cutting of rock WESTING- HOUSE ELECTRIC CORP 6 Aug 1969 [30 Aug 1968] 39333/69 Heading E1F [Also in Divisions H1 and H5] Minerals, rocks, glass &c are cut by a high energy electron beam having a total power of at least 5kw and a radiance of at least 10<SP>8</SP>w/ cm<SP>2</SP>sr. The beam is used to melt-cut a cavity in the rock and thereafter to heat the bottom of the cavity to a temperature substantially higher than that of the face of the rock. The electron beam generator may be of a conventional type using electron voltages up to 100 million V generated e.g. by a Marx generator, a Van-de-Graff machine or a betation. The beam passes into the atmosphere through differential pressure chambers and, finally, through a nozzle to which is applied an annular gas jet. The expelled gas serves to protect the apparatus from molten material, combustion products and enables it to be used for operations under water. In addition, a jet of gas, steam or fluid (e.g. water) may be applied to the working area for clearing molten material &c. The jet and the beam may be applied simultaneously or in alternate pulses. A jet which alternates between gas and water may be used. In order to decrease the attenuation of the beam, the density of the atmosphere between the nozzle and the work piece may be reduced by heating it to high temperature e.g. by means of an annular oxymethane or oxy-acetylene burner. For the same purpose, a plasma jet may be used (Fig. 2). In this embodiment, the beam E passes through a differential pressure chamber 53 and then through a nozzle 41 surrounded co-axially by a plasma torch 81. The torch comprises two chambers 63, 65 provided with oppositely poled electrodes 67, 69. A gas such as helium or argon is supplied to the chamber 65.
Patent GB-1465666-A (GB)
Title: Nitroparaffin explosive composition
IPC: C06B25/36
Filed: 1975-09-26
Abstract: 1465666 Explosive compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 26 Sept 1975 [29 Oct 1974] 39568/75 Heading C1D An explosive composition comprising a liquid nitroparaffin and hydrazine also contains diethylenetriamine which acts as a delayed action densensitizing agent. The composition becomes non-detonable at a convenient time after mixing. The nitroparaffin may be nitromethane, dinitromethane, nitroethane, dinitroethane, nitropropane or dinitropropane.
Patent GB-338780-A (GB)
Title: A method of preventing premature ignition in internal combustion engines
IPC: C10L1/02
Filed: 1929-12-27
Abstract: 338,780. Ducamp, A. J. Feb. 16, 1929, [Convention date]. Addition to 308,610 and 335,828. Motor spiTit; lubricants. - "Knocking" in internal-combustion engines is prevented by introducing mercury cyanide with the engine lubricating oil into the cylinder e.g. as a dispersion of a solution in glycerine or other combustible or incombustible solvent with or without phenol. Fatty acids, preferably oxidized, or alkali or alkaline earth soaps such as calcium or magnesium oleate are specified as dispersing agents. 10 lb. of glycerine containing 20 per cent of mercury cyanide may be dispersed in 100 lb. of lubricating oil. The mercury cyanide may simultaneously be introduced with the fuel or direct to the cylinder or induction pipe as described in the parent Specifications.
Patent GB-1530471-A (GB)
Title: Method of stabilization of rubbers and vulcanizates
IPC: C08L21/00
Filed: 1975-09-27
Abstract: 1530471 Stabilizing rubber with phenolamine resins V V MOISEEV V V KOSOVTSEV G P KOLESNIKOVA V A ZIMNUKHOV L A MIROSHNIKOVA E A KIMEL E K CHEFRANOVA V I GUSEVA and LV MASAGUTOVA 27 Sept 1975 39679/75 Heading C3K A method of stabilizing rubber and vulcanizates thereof comprises incorporating into the solid rubber or a solution or latex thereof, as an antioxidant, a phenolamine resin of the formula where R 1 , R 2 , R 3  and R 4  are each selected from alkyl (C 1-12 ), alkenyl, arylalkyl, hydroxyaryalkyl, carboxy and halogen or R 1  and R 4  are hydrogen atoms and R 2  and R 3  are as previously defined said resin having been prepared by condensing hexamethylene tetraamine with a correspondingly substituted phenol. In addition there may be incorporated into the rubber an antioxidant selected from secondary amines, diamines, 2,6 - dialkylphenols, phosphoruscontaining compounds, and sulphur-containing compounds.
Patent GB-1282188-A (GB)
Title: Gas-generating apparatus for heat-treating furnaces
IPC: C01B3/38
Filed: 1970-08-18
Abstract: 1282188 Mixing in conduits HOLCROFT & CO 18 Aug 1970 [15 Sept 1969] 39697/70 Heading B1C [Also in Division C5] An apparatus for producing simultaneously several different mixtures of the same two gases comprises two lines 54 and 55, one for each of the two gases to be mixed, and cross lines 66, 67 and 68, one for each mixture to be produced. Each cross line has valves (59, 60, 61, 69, 70, 71) near its ends, orifices (62, 63, 64, 72, 73 and 74) and an outlet (75, 76, 77) for the mixed gas. As described, one of the gases to be mixed is a reformed gas (see Division C5) comprising CO, hydrogen and nitrogen, the other a combustion product comprising CO 2 , nitrogen and a little water, and the mixed gases, are supplied to heattreating furnaces.
Patent GB-886567-A (GB)
Title: Improvements in the manufacture of permanent magnets
Inventor: CORTE ALESSANDRO
IPC: C04B35/26
Filed: 1959-11-24
Abstract: 886,567. Magnetic compositions. FABBRICA ITALIANA PRODOTTI SINTERIZZATI S.p.A. Nov. 24, 1959, No. 39809/59. Class 38 (2). A permanent magnet material having a formula where M is a metal from the group barium, lead and strontium and x is between 0.7 and 1 inclusive, and including an oxide from the first Periodic Group Li, Na, K, Rb, Cs, Cu, Ag, Au, is manufactured by a method including the steps of mixing the finely-ground ingredients, causing the particles to agglomerate between revolving discs 1, 2, pressing into blocks in dies, baking in an oxidizing atmosphere between 1200‹ and 1300‹ C. for 30-120 minutes, regrinding to a grain size of 1 micron, compacting this powder by mixing with water to form a plaster, the water being removed to leave a compact, drying the compact and grinding to a powder between 40 and 250 microns, compressing into dies of the magnet shape and sintering for 20 to 60 minutes between 1050‹ and 1300‹ C. The oxide of the first Periodic Group may comprise between 0.3 and 0.5% by weight of the mass. The dies are lubricated between each charging by an atomized jet of lubricant in a volatile liquid for example alcohol or ether.
Patent GB-999091-A (GB)
Title: Benzo(a)quinolizine derivatives and method for making them
Inventor: OPENSHAW HARRY TACON
IPC: A61K/
Filed: 1959-11-24
Abstract: The invention comprises benzoquinolizine compounds of the general formula <FORM:0999091/C2/1> and their optical enantiomorphs, wherein R1 is an alkyl group of from one to four carbon atoms, R2 is a lower alkoxy or a hydroxy group, and R3 and R4 are methyl or ethyl groups or together form a methylene group, together with a process for their preparation by condensing a ketone of formula <FORM:0999091/C2/2> with a (lower alkoxycarbonylmethylene)triarylphosphorane to give a compound of the above formula in which R2 is a lower alkoxy group, and if desired hydrolysing the product to yield the corresponding acid.  The compounds are useful as intermediates for the synthesis of emetine. to. Specifications 999,092 and 999,096 are referred
Patent GB-1009424-A (GB)
Title: Method and apparatus for separating loose solid material according to specific gravity
IPC: B03B5/24
Filed: 1961-11-24
Abstract: The subject matter of this Specification is the same as that of Specification 1,009,423 but the claims differ.
Patent GB-1124482-A (GB)
Title: Process of manufacturing a polyolefin fibre-containing non-woven fabric
IPC: D04H1/60
Filed: 1965-09-21
Abstract: The disclosure is substantially the same as that of Specification 1124481 but the claims relate to the process for forming and bonding the fabric.
Patent GB-895301-A (GB)
Title: Process for refining metals
IPC: C21C1/00
Filed: 1960-11-23
Abstract: 895,301. Refining metals. HUTTENWERK OBERHAUSEN A.G. Nov. 23, 1960 [Nov. 24, 1959], No. 40307/60. Class 72. A process for refining metals such as pig iron in a horizontally rotatable furnace in which the metal bath remains until the completion of the refining operation, comprises blowing a gaseous refining medium such as oxygen or air into the furnace through blast nozzles extending through one end wall, introducing slag formers such as lime into the bath, preferably with the gaseous refining medium and allowing the slag to flow away continuously through at least one opening in the end wall of the furnace during the refining operation. As shown in the drawing the rotary furnace 1 with a refractory lining 2 is supported on roller mountings 3 and is rotated during the refining operation. Commercially pure oxygen is blown through nozzle 6 immersed in the metal bath 8 and air or oxygen enriched air is supplied via nozzle 7 to the space above the metal bath. Lime is supplied to the furnace from hopper 11 via shoot 10 and the thin layer of slag 9 flows continuously through the furnace and is discharged into the slag pot 14, waste gases being discharged at 13.
Patent GB-1144006-A (GB)
Title: Rotary piston internal combustion engine having a gyratory piston
IPC: F02B53/00
Filed: 1966-09-12
Abstract: 1,144,006. Rotary-piston internal combustion engines. KLOCKNER-HUMBOLDT-DEUTZ, A. G. Sept. 12, 1966 [Sept. 24, 1965], No.40677/66. Heading F1F. A rotary-piston I. C, engine operating on a four-stroke cycle comprises a gyratory piston within a stationary housing in which the piston profile is a trochoid, preferably an epitrochoid and the inner profile of the housing the outer envelope curve of the trochoid, wherein the number of piston lobes is divisible by two and in that a lobe of or the piston in alternate lobes thereof, the piston periphery is provided with an inlet control orifice and an outlet control orifice to control gas exchange. In Fig. 1, a two-lobed piston 1 gyrates within a stationary housing 6 having three lobes which with the piston form working chambers 15, 16, 17 opening into combustion chambers 18 fitted with fuel-injection nozzles 19. One lobe of the piston includes an inlet control orifice 20 through which air is admitted from one side of the housing through a port 22 and duct 24 and an outlet control orifice 21 through which spent gases are discharged to the other side of the engine through a duct 25 and port 23. The piston 1 mounted on an eccentric 8 of a shaft 11 is constrained to move by means of a ring-gear 12, Fig. 3, fixed to the housing and a pinion 13 fixed to the piston. End-plates 28 secured to the piston, are formed with disc-like passages connecting the ports 22, 23 with lateral chambers 26, 27 respectively sealed from the engine oil spaces by labyrinths formed in the endplates. In another embodiment, a four-lobed piston gyrates in a five-lobed stationary housing with the alternate lobes provided with the inlet and outlet control orifices 20, 21.
Patent GB-1201540-A (GB)
Title: Feed rate control
IPC: G05B19/416
Filed: 1968-08-26
Abstract: 1,201,540. Numerically controlled machine tools. BENDIX CORP. Aug.26, 1968 [Sept.11, 1967], No.40720/68. Heading G3N. In a numerical control system in which first data is fed to interpolators providing first pulse trains equal to a number of axes to be controlled, and second data representative of the resultant motion is translated into third pulse trains, a means is provided for receiving the first pulse trains and generating a vector approximation second pulse train having a frequency approximately proportional to the rate of motion commanded by the first pulse trains, and a device for receiving the second and third pulse trains and providing a difference pulse train to the interpolators in a direction to reduce any difference towards zero. The device may include a reversible counter counted in one direction by the second train and in the reverse direction by the third train. The vector approximator 44 generates the second pulse train having a frequency proportional to the resultant motion by multiplying each of the first pulse trains e.g. X and Y by fractional constants and adding their sums. For example with a two axis control the resultant motion is approximated by the equation 15A/16+B/2=#A<SP>2</SP>+B<SP>2</SP> where A numerically equals the first pulses having the higher and B the lower frequency. For three axis control the approximation A + ¢B + “C = #A<SP>2</SP> + B<SP>2</SP> + C<SP>2</SP> where A has the highest frequency and C the lowest. This approximation is stated to be accurate within plus minus 13À5%. In Fig.2 the vector approximator determines which of the two first trains has the higher frequency by flip flop circuits 50 wherein the pulses of one train sets the first flip flop and the pulses of the second train re-set it. The train thus determined to be higher is passed through a four bit binary counter 60 which deletes one pulse in 16 and the lower frequency pulse train passes through a one stage counter 64 which deletes alternate pulses and passes the remainder to a point 70 where it is summed with the remainder from the higher pulse train. In Fig.1, X, Y commands are passed through interpolators 20, 22 the outputs from which are passed to servos 28, 30 to control a member 10 in a conventional manner. The interpolator outputs are also passed to a vector approximator 44 as described above the output from which is fed to a synchronizer 72 which counts a counter 74 in one direction, and other pulses from an oscillator 42, proportional to the desired feed rate counts in the reverse direction. Any difference between the two rates of counting is passed back to the interpolators via lines 36, 38 hence if there is a difference recycling takes place to reduce such difference.