baber/WOPTO huggingface dataset:
Patent GB-1073179-A (GB)
Title: A laser
Inventor: NIEBUHR KENNETH ELLSWORTH
IPC: H01S3/08
Filed: 1964-10-27
Abstract: 1,073,179. Lasers. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 27, 1964 [Oct. 31, 1963], No. 43685/64. Heading H1C. A laser is pulse-frequency modulated by means of an electro-optic crystal included within the laser cavity. As shown in Fig. 2, a laser comprises a ruby crystal 22 surrounded by a pulsed helical flash lamp 24 which may have conventional reflecting and cooling accessories. A beam of stimulated radiation 25 may pass through a polarizing prism 28 having a vertical transmission plane: alternatively, if a 90 degree or 60 degree oriented ruby is used, the polarizing prism is unnecessary. Lenses 30, 32 reduce the plane-polarized beam which passes into a cylindrical waveguide cavity 34 containing centrally an electro-optic crystal 38 having a linear electro-optic effect and a high electrooptic coefficient such as NH 4 H 2 PO 4 , KH 2 PO 4  or KD 2 PO 4 . A generator 18 generates a frequency-modulated microwave signal bearing information which signal is applied to a probe 35 to excite the cavity 34 in its TM 01  mode. The cavity 34 has an axial length equal to an integral number of half-wavelengths of the microwave carrier and a low-loss dielectric 36 such as fused quartz is used to match the phase velocity of the standing microwaves with that of the stimulated radiation. The spacing of the Fabry-Perot reflectors 40, 42 is such that the time for propagation of radiatoin between them is equal to an integral number of half-periods of the microwave carrier. The state of polarization of stimulated radiation re-entering the ruby crystal after reflection from the reflector 42 is modulated by the microwave field within the cavity 34. In Fig. 3 (not shown) laser pulses 50 are emitted from partially reflecting surface 40 twice per microwave cycle when the microwave field is substantially zero. There is described with reference to Figs. 4 and 5 (not shown) an embodiment in which a birefringent bias plate (52) is inserted in the beam between the ruby crystal and the modulator; only one fourth as much modulator power is required but laser pulses are emitted only once per microwave cycle.
Patent GB-1035624-A (GB)
Title: Improvements in and relating to the preparation of alcohols
Inventor: YOULE PHILIP VINCENT
IPC: C07C29/50
Filed: 1961-12-07
Abstract: Saturated straight chain aliphatic and cycloaliphatic hydrocarbons are oxidized to the corresponding alcohols by a process which comprises oxidizing the hydrocarbon in the liquid phase at an elevated temperature and under substantially anhydrous conditions with a gas containing molecular oxygen in the presence of a boric acid and/or an ester of such an acid with a monohydric alcohol and a small amount, defined as little as one part per million and preferably between 50 and 100 parts per million, by weight of transition metal, based on the weight of hydrocarbon employed, of a transition metal carboxylate which is soluble with a hydro carbon, the alcohol product being obtained in the form of an alkylborate, and hydrolysing the said alkyl borate to recover the alcohol product, the preferred carboxylate being a palmitate, a stearate, or a naphthenate.  The most preferred transition metals are cobalt, nickel, manganese, vanadium, rhodium or ruthenium.  A mixture of transition metal carboxylates may be used, this preferably comprising one metal which is more stable in a lower valency state and a second metal which is more stable in a higher valency state.  Specified hydrocarbon starting materials are octane, nonane, decane, dodacane or eicosane or cyclohexane or alkyl substituted cyclohexanes. The boron compound may be orthoor meta- or pyro-boric acids, boric oxide or an ester of a monohydric alcohol with one of the said boric acids. The process may be carried out within a range of 100 DEG  to 200 DEG C., the water of esterification in a case where a boric acid is used or alcohol liberated by transesterification where a boric ester is used being removed as soon as possible after formation.  In the examples, cyclohexane is oxidized in the presence of cobalt naphthenate, manganese naphthenate, vanadylnaphthenate, vanadium stearate, copper palmitate, a mixture of cobalt naphthenate and vanadylnaphthenate, and dodecane is oxidized in the presence of manganese acetate, n-icosane is oxidized in the presence of nickel stearate, n-dodocane and n-decane in the presence of a ruthenium stearate, n-octane with cobalt naphthenate.
Patent GB-1502129-A (GB)
Title: Centring sleeve for jointed shafts
IPC: F16D3/16
Filed: 1975-10-24
Abstract: 1502129 Universal joints GOETZWERKE FRIEDRICH GOETZE AG 24 Oct 1975 [8 Nov 1974] 43877/75 Heading F2U A shaft coupling comprises a centring device in the form of an elastomeric body 12 integral with a rigid sleeve 8 and disposed between the end of one shaft 1 and a cylindrical stud 9 on the other shaft 2, the inner surface of the elastomeric body having a rib 14 of convex profile and whose internal diameter is smaller than the diameter of the stud in its unstressed state. As shown, the body 12 of rubber is formed with a sealing lip 18, the recesses 16, 17 on each side of the rib 14 serving to influence the deformability of the rubber and possibly as oil reservoirs. The shafts are coupled by a polygonal rubber ring 3 connected to respective shaft ends 1, 2 alternately by bolts 4, 5.
Patent GB-921328-A (GB)
Title: A process for the production of alkyl halides
IPC: C07C17/093
Filed: 1960-12-21
Abstract: Alkyl halides are prepared by heating a halogenated sulphonic acid alkyl ester at 100 DEG C. to 300 DEG C. with an alkali metal halide. Sodium and potassium chlorides and fluorides are preferred halides. Methyl, ethyl, isopropyl and n-propyl fluoro and chloro sulphonic acid esters are specified halosulphonic esters. Examples describe the heating of (1) fluorosulphonic acid methyl ester with KF yielding methyl fluoride; (2)-(4) chlorosulphonic acid ethyl ester alone or with NaCl or KCl to yield ethyl chloride; (5) fluorosulphonic acid ethyl ester with KF or KF and mercury yielding ethylfluoride and also alone or with mercury to provide negligible amounts of ethyl fluoride and (6) fluorosulphonic acid ethyl ester with NaF to yield ethyl fluoride.
Patent GB-1241836-A (GB)
Title: Modifying overbased amine-aldehyde complexes
Inventor: DORER CASPER JOHN JR
IPC: C10M159/22
Filed: 1968-09-17
Abstract: 1,241,836. Anion-modified overbased carbonated amine-aldehyde condensates. LUBRIZOL CORP. 17 Sept., 1968, No. 44187/68. Heading C3R. [Also in Division C5] An overbased, carbonated complex of a metal of Group II of the Periodic Table with a condensate of a C 1-6  aliphatic aldehyde and an alkylene polyamine is modified by treatment with an acid or ammonium, amine or metal salt thereof or gas giving rise in water to an acid stronger than carbonic acid. The complex is known in the lubricating art and is prepared by reaction of a stoichiometric excess of a basic Group II metal compound with an aldehyde/ polyamine condensate, preferably in the presence of a phenolic promoter in an inert organic solvent, and treatment of the product with CO 2 . In Examples 1-7 complexes are prepared by heating aldehyde or formaldehyde with a mixture of N-octadecyl propylene diamine or N- dodecyl diethylene triamine or N-dodecyl butylene diamine and a mineral oil and water and Ca(OH) 2 , adding heptyl phenol and BaO or Ba(OH) 2 , then bubbling CO 2  through. In Examples I-X modified complexes are obtained by reaction of the products of Examples 2 or 4 with concentrated H 2 SO 4  or aqueous H 2 SO 4 , NaHSO 4 , (NH 4 ) 2 SO 4 , NH 4 HSO 4 , (NH 4 ) 6 Mo 7 O 24  - 4H 2 O, (NH 4 ) 2 S 2 O 3 , (NH 4 ) 2 CrO 4 , H 3 PO 4 , NH 4 H 2 O 4 , (NH 4 ) 2 HPO 4 , or NH 4 HB 4 O 7  . 3H 2 O, or gaseous SO 2 , solid H 2 NSO 3 H, O : O<SP>1</SP>-diheptylphenyl phosphorodithioate or aqueous ammonium alum. The products are added, with other conventional additives, to lubricating oils (compositions A-D).
Patent GB-1136432-A (GB)
Title: Improvements relating to shaft seals
Inventor: BROOKES GEORGE
IPC: F16J15/32
Filed: 1966-10-04
Abstract: 1,136,432. Shaft seals. THOMAS GLOVER & CO. Ltd. 20 Nov., 1967 [4 Oct., 1966], No. 44206/66. Heading F2B. A seal for a rotary shaft 1, e.g. a gear-box shaft of a gas meter, comprises a ring 6 of triangular section at the high pressure end of the seal with the apex facing the low pressure end, a U-section ring 7 of resilient material with its open side adjacent the apex of the ring 6 and an 0-ring 8 on the low pressure side of the ring 7. The ring 6 is of rigid material, the ring 7 is of synthetic rubber or plastic and the 0-ring 8 is of nitrile rubber which swells when exposed to hydrocarbons so that, in use, it urges the U-ring 7 against the ring 6 thus spreading the ring 7 into contact with the shaft 1 and its housing 2.
Patent GB-1012241-A (GB)
Title: Amino derivatives of n-cyclopropylbenzylamines
IPC: C07D213/38
Filed: 1962-11-22
Abstract: The invention comprises compounds of the general formula <FORM:1012241/C2/1> (wherein X and Y are each independently hydrogen, lower alkyl, chlorine, bromine, hydroxy, lower alkoxy, amino or (mono-lower alkyl)amino, n is 2, 3 or 4, R is amino, (mono-lower alkyl)amino, (di-lower alkyl)amino, piperidyl, pyridyl or morpholino, and the lower alkyl and alkoxy groups each contain 1-4 carbon atoms), and the preparation of (a) compounds in which R is a primary amino group by reacting a compound (I) of the formula <FORM:1012241/C2/2> with a compound of the formula <FORM:1012241/C2/3> (wherein Z is hyroxy, bromine or chlorine) and reducing the product with lithium aluminium hydride, (b) compounds in which R is an alkylamino group by reacting the corresponding primary amine with R11COOC2H5 (wherein R11 is hydrogen or C1- 3 alkyl) or R111COCl (wherein R111 is C1-3 alkyl) and reducing the product with lithium aluminium hydride, and (c) compounds in which R is a dialkylamino or heterocyclic group by reacting (I) with Hal-(CH2)n-R (wherein Hal is chlorine or bromine). The compounds of the invention are monoamine oxidase inhibitors, and may be administered orally in the form of pharmaceutical preparations containing them together with a carrier.  Specification 1,012,242 is referred to.
Patent GB-1357407-A (GB)
Title: Anti-theft device for a diesel engine-powered vehicle
IPC: B60R25/021
Filed: 1971-09-23
Abstract: 1357407 Vehicle anti-theft devices SOC D'EXPLOITATION DES BREVETS NEIMAN 23 Sept 1971 [25 Sept 1970] 44503/71 Heading B7J [Also in Divisions E2 and F1] An anti-theft device for a Diesel engine vehicle, comprises a key operated safety lock having a first position locking a vehicle part, a second position corresponding to ignition and a third position closing an electrical supply circuit for the engine starter, a solenoid, the movable plunger of which engages a cam of the safety lock to prevent locking when the engine is running and a two-position change-over switch operated by mechanical control means enabling the engine to start by closing the supply circuit for the starter. As shown in Fig. 1, the vehicle part is maintained unlocked by the solenoid plungers abutting a shoulder 13<SP>1</SP> on a cam 13 of the lock operated by a key 2 which cam is prevented from turning in the anticlockwise direction to lock the part. A handle 22 controlling the starter is controlled by a pivoted part 30 connected to a battery 21 and to either the starter 16 or solenoid 12 through the two way switch 26, as shown in Fig. 1; the starter is operative when the cam 13 is also rotated by the key to close the switch 4, the key is removed and the cam rotates to its original position thus opening the switch 4 and preventing locking. The engine is stopped by pushing the handle 22 and rotating the part 30 thereby moving the switch to complete the circuit for the solenoid 12 the plunger of which is withdrawn from the cam. The cam can then be rotated anticlockwise to the locking position by the key, which can then be withdrawn. Cut means breaks the circuit and de-energizes the solenoid and the vehicle part remains locked.
Patent GB-1131224-A (GB)
Title: Improvements in and relating to labyrinth seals
Inventor: WALLWORK THOMAS
IPC: F16J15/447
Filed: 1964-10-31
Abstract: 1,131,224. Labyrinth seals. PIONEER OILSEALING & MOULDING CO. Ltd. 1 Nov., 1965 [31 Oct., 1964], No. 44505/64. Heading F2B. A labyrinth seal is formed by a pair of rings 10, 11 of plastics material each having axially extending flanges 16, 19 which intermesh without contact between corresponding flanges on the other ring, the radially outermost flange 20 of one ring 10 being axially longer than the remaining flanges on that ring and the other ring 11 having an axial extension 21 on the side remote from the flange 19. As shown in Fig. 2 to seal a shaft bearing 34, the ring 10 is fitted in a recess in the shaft housing 32 and the ring 11 embraces the shaft 30 with the extension 21 contacting the bearing and forming therewith a space 36 which is packed with lubricant. The rings 10 and 11 may be of differing plastics materials.
Patent GB-1474706-A (GB)
Title: Ray dividers
IPC: G02B27/14
Filed: 1974-10-14
Abstract: 1474706 Ray dividers BALZERS PATENT UND BETEILIGUNGS AG 14 Oct 1974 [12 Nov 1973] 44511/74 Heading G2J An interference filter comprises a multi-layer coating 8 on one side of a tinted glass substrate 7 such that (a) short wavelength light incident on the uncoated face of the substrate is absorbed by the substrate even though reflected by the coating, (b) intermediate wavelength light is transmitted through the substrate but reflected by the coating, (c) longer wavelength light is neither absorbed by the substrate nor reflected by the coating, such that the reflection band for light incident on the uncoated face is bounded on one side by the absorbtion edge of the substrate and on the other side by the reflection/transmission transition edge of the coating. The filter is of use in a fluorescence microscope as a beam-splitter, wherein the reflected light is of the right spectral composition to excite fluorescence in the specimen and the fluorescence emission is transmitted through the splitter to the eye-piece. It may also be used in copying documents in colour.
Patent GB-1112339-A (GB)
Title: Improved combination laundry washer-dryer
IPC: D06F23/02
Filed: 1966-10-05
Abstract: 1,112,339. Washing-machines. WHIRLPOOL CORPORATION. 5 Oct., 1966 [22 Oct., 1965], No. 44533/66. Heading DIA. A washing machine has provision for suction drying by means of a nozzle 40 located adjacent the perforated rotary drum of the machine and has, .between the nozzle and extractor motor 35 a suds trap 39 which prevents soap suds from the drum reaching the extractor motor and also can be used to condense steam during the drying process. The machine is filled by hot and cold water through an inlet valve 20, the water entering through a detergent holder 24. The perforated drum is driven by a motor 12 as is a turbine pump 15 in the draining system. The sump is opened and closed by a solenoid controlled valve 32 and a exit trap 33 is provided. A separator 37 is provided to separate air from water during drying, the water passing out through a check valve to the turbine pump 15. During washing the suds trap 39 is filled with water via a pipe 43 to prevent suds escaping from the drum and during drying air is blown by the motor 35 over a heater element 42 and when clothes cover the nozzle 40 a suction effect is produced in the suds trap 39 which draws in steam and water from the clothes. The steam is condensed by the cold water entering through the pipe 43 and the water and hot air are separated in the separator 37, the air being recirculated by the motor 35. Bleach and rinse agent are added from containers 27 and 28 at appropriate times in the washing cycle and these are controlled by a central programming device operated from a timer motor.
Patent GB-1270987-A (GB)
Title: New pigment dyes
IPC: C09B45/16
Filed: 1969-09-11
Abstract: 1,270,987. Printing inks. BADISCHE ANILIN- & SODA-FABRIK A.G. 11 Sept., 1969 [12 Sept., 1968], No. 44827/69. Heading C3R. [Also in Division C4] A printing ink comprises a dispersion in water or an ethylene glycol/water mixture of the yellow pigment dye of formula or of formula and the reaction product of 1 mole of sperm oil alcohol and 24 to 25 moles of ethylene oxide.
Patent GB-1323588-A (GB)
Title: Intermeshing screw rotor machines such as compressors and screw rotors therefor
IPC: F01C1/16
Filed: 1970-09-23
Abstract: 1323588 Rotary compressors and motors ATLAS COPCO AB 23 Sept 1970 [23 Sept 1969] 45234/70 Heading F1F [Also in Division B3] In a screw rotor machine such as a compressor, comprising intermeshing gate and main rotors 7, 5 rotatable in overlapping parallel bores 6, 4 with the gate rotor having helical threads 14 with concave leading and trailing flanks 16, 17 disposed inside the pitch circle 15 and the main rotor having helical threads 8 with convex leading and trailing flanks 10, 11 disposed outside the pitch circle 9, the crests of the gate rotor threads are formed by a circular arc 18 and a sealing ridge 20 disposed at the intersection of the circular arc with the leading flank 16. Each ridge 20 generates a mating groove 21 in the main rotor. The trailing flank 11 of the main rotor is generated by a substantially straight portion 29 adjacent the crest of and on the leading flank 16 of the gate rotor thread. Cutters (see Division B3) include cutter blades which cut the complete rotor thread profile from the crest of one rotor thread to the crest of the adjacent rotor thread for both the gate and main rotors.
Patent GB-1022854-A (GB)
Title: Improvements in or relating to reciprocable cutting heads for hair-clipping or shaving apparatus
IPC: B26B19/06
Filed: 1962-11-30
Abstract: 1,022,854. Hair clippers and shavers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Nov. 30, 1962, No. 45387/62. Heading B4B. A reciprocable cutting head for a hairclipping or shaving apparatus comprises a fixed cutting plate 4, a brace 3 which is fastened to the plate 4 and limbs 5 of which are adapted to be connected with the housing 16 of the apparatus, and a movable cutting plate 1 provided with slots 7 in which the limbs 5 engage. Each limb 5 comprises a pair of lugs 8, 14, the lug 14 engaging in the corresponding slot 7 of the plate 1 and passing against a transverse rib 17 provided in the housing 16 and the lug 8 cooperating with a pair of spaced projections 20 formed on the inside of the housing. The lugs 14 have widened heads 15, Fig. 1 (not shown), which overlap the edges of the slots 7. Each lug 8 has a cross-piece 21 which is adapted to ride resiliently over the corresponding pair of projections 20 and come into engagement with their lower surfaces. A socket 9 fixed in the plate 1 has a conical surface 19 to receive the head of a pin 11 which is driven by the motor of the apparatus in a vibratory motion.
Patent GB-1126365-A (GB)
Title: Trailing prop for the bracing of shifting cylinders of mining conveyors
IPC: E21F13/08
Filed: 1965-10-27
Abstract: 1,126,365. Endless conveyers. GEWERKSCHAFT EISENHUTTE WESTFALIA. 27 Oct., 1965 [28 Oct., 1964], No. 45465/65. Heading B8A. A conveyer shifting cylinder 1, Fig. 1, is connected with a trailing prop 2 by a leaf-spring 3 which passes round a support foot 4 of the trailing prop 2 without being connected thereto and is connected with the trailing prop 2 and/or the shifting cylinder 1 by known adjustable stops, shown as clamps 5. The clamp 5 on the trailing prop 2 is movable longitudinally so that the trailing prop 2 can slide in the clamp 5 if the support foot 4 gives. As shown in Fig. 4 an end 6 of the leaf-spring 3 engaging the trailing prop 2 is guided in a long bore 7 so arranged that in its lowered state the trailing prop 2 can be manually-tilted to a position oblique to the coal face. For repair work a chain 8 serves to hold the trailing prop 2 in an oblique position as shown in dot-dash lines.
Patent GB-1425722-A (GB)
Title: Safety detonator device for detonating fusecord
IPC: C23C18/12
Filed: 1974-10-22
Abstract: 1425722 Detonators EXPLO-RIDGEWAY INTERNATIONAL Ltd 22 Oct 1974 [27 Dec 1973] 45617/74 Heading F3A A detonator for initiating detonating fusecord, comprises: a housing 19 sufficiently strong to confine the explosion energy of an initiating explosive 10 in the event of its premature detonation; and a closure member 23 which is displaceable inwardly to permit an end length of detonating cord to be inserted into the housing. The closure member 23 has a sharp edge that bites into the detonating fusecord to prevent its withdrawal from the housing. The initiating explosive 10 consists of lead azide pressed at 15,000 to 20,000 p.s.i.
Patent GB-1271445-A (GB)
Title: Polymerization process
IPC: C08F10/00
Filed: 1969-09-16
Abstract: 1,271,445. Polymerization process. STANDARD OIL CO. 16 Sept., 1969 [17 Sept., 1968], No. 45656/69. Heading C3P. A process for polymerizing C 2-4  alpha-olefins comprises subjecting a reaction mixture comprising (a) an inert liquid hydrocarbon reaction medium, (b) an alpha-olefin monomer feedstock, and (c) a catalyst slurry comprising a suspension in the reaction medium of a supported oxide of a Group Va or Via metal and a compound AlR 3  wherein R is a monovalent hydrocarbon radical, to conditions of temperature and pressure such that polymerization of the alpha olefin takes place; flashing off unreacted alpha olefin monomer; separating the residual mixture into liquid and solid phases; and recovering the dissolved polymerized alpha-olefin from the liquid phase. In the examples ethylene is polymerized in a batch process utilizing chromia dispersed on silica promoted by aluminium triisobutyl as catalyst and cyclohexane as solvent, and an ethylene-propylene copolymer is prepared by a continuous process utilizing the same catalyst and solvent.
Patent GB-1161769-A (GB)
Title: Apparatus and method for casting metal.
IPC: B22D18/04
Filed: 1966-10-12
Abstract: 1,161,769. Moulding moulds. ABEX CORP. 12 Oct., 1966 [12 Nov., 1965], No. 45665/66. Heading B5A. [Also in Divisions B3 and C3] A mould 10 for casting railway car wheels comprises cope 11 and drag 12 parts made of a "permanent" material, e.g. graphite, the thin sections of the mould cavity being lined, 30, 31, with insulating refractory material to enable the cast metal to solidify directionally from the outer thicker sectioned tread part of the wheel through the thin sections towards the centre. The linings 30, 31 prevent rapid chilling of the poured metal in the thin sections of the mould cavity and allows the mould 10 to be filled from a single central combined gate-riser 25. The linings 30 may be a ceramic material, e.g. comprising colloidal silica, citric acid, magnesium sulphate and kyanite or may be sand bonded by oil or sodium silicate or resin bonded. The linings 30, 31 are only used once and are replaced on the permanent graphite mould parts by methods indicated in Figs. 4-8 (not shown). These include injecting the lining material between a mould part and a pattern, applying the lining material in a slurry and spreading by a revolving profiled plate (Fig. 4), or, in the case of sand linings, air blowing through ducts (Fig. 7). The ceramic linings are cured by heat, using the residual heat of the cope and drag from previous casting operations. The sand linings are mechanically interlocked to the graphite mould parts by providing grooves and holes (Fig. 8). The hole may have blocking screens (203A), (204A), (205A), (Fig. 8) to prevent sand being lost therethrough during blowing of the sand. The mould 10 comprises a hub core 60 and an insulating pouring sleeve 56 in the riser 25. In applying a ceramic material to the graphite blocks the colloidal silica, citric acid, and kyanite are mixed, kyanite being added until the viscosity reaches approximately 82 degrees Be<SP>1</SP>, then the magnesium sulphate solution is added which controls the time in which the mix gels. The linings are cured in an oven at 400‹ F. for several hours.