baber/WOPTO huggingface dataset:
Patent GB-808771-A (GB)
Title: Improvements relating to the casting or moulding of hollow articles
Inventor: ULLMANN HENRY
IPC: B29C41/38
Filed: 1956-02-16
Abstract: 808,771. Moulding doll's heads. METTOY CO. Ltd. May 14, 1957 [Feb. 16, 1956], No. 4865/56. Class 87(2). [Also in Group XV] In the slush moulding or rotary casting of a hollow article having at least one tube integral therewith, at least one wire, rod, or other core member on which a tube may be moulded is positioned in the mould cavity and a layer of liquid moulding composition is deposited on the outer surface of the core member or members and on the surface of the mould cavity. In the moulding of a doll's head having a mouth opening 1 connected by two internal tubes 2 to points adjacent the eyes so that weeping may be simulated, there may be used a copper mould divided into two parts at a line 4-4, and having internal protuberances for forming the eye sockets 3 and the mouth cavity 5. A pair of wires are spigoted in recesses in the mould to connect points just above the eye sockets with the mouth-forming protuberance. The mould is then filled and slushed with a resin or other casting composition, and after setting the moulded article is removed from the mould and the wires withdrawn to leave tubes 2. Alternatively a doll's head having no neck opening may be produced by a rotary casting process.
Patent GB-687991-A (GB)
Title: Process for the purification of 1,2-propylene oxide
IPC: C07D301/32
Filed: 1951-02-28
Abstract: 1,2-Propylene oxide is recovered in purified form from a mixture thereof containing methyl formate by subjecting the mixture to strong agitation with an aqueous alkali to saponify the methyl formate, allowing the product to separate into an aqueous layer and a 1,2-propylene oxide layer and recovering the latter layer.  The propylene oxide can then be further purified by p  fractional distillation.  The alkali which may be sodium hydroxide or potassium hydroxide is preferably added at between 70 DEG  and 100 DEG  F. and is preferably used in small excess and in the form of an aqueous solution containing 15 to 25 per cent by weight of the alkali.  The process may be carried out continuously, e.g. by mixing the two liquids in a centrifugal pump and measuring their quantities by flow meters as they are supplied to the pump, the saponification taking place completely while the mixed liquids pass through the pump.  In examples: (1) a crude solution containing 1,2-propylene oxide and methyl formate, together with minor amounts of acetaldehyde, ethylene oxide, methylal and methanol is continuously mixed with a small excess of an aqueous solution of sodium hydroxide at 78 DEG  F. and the mixture then passed to a centrifugal pump at such a rate that it is subjected to strong agitation during its passage through the pump. The mixture is then separated into two layers and the upper organic layer containing purified propylene oxide is separated; (2) as in (1) except that the sodium hydroxide is used in greater excess and the mixing temperature is 79 DEG  F.
Patent GB-1064891-A (GB)
Title: Compensator for friction material wear and hydraulic brake with mechanical parking brake attachment
IPC: F16D65/56
Filed: 1965-02-04
Abstract: 1,064,891. Automatic brake adjustor. GOODYEAR TIRE & RUBBER CO. Feb. 4, 1965 [Feb. 20, 1964], No. 4989/65. Heading F2E. A brake including a stationary part 4 and a rotary part 5, 6, has a fluid-pressure motor having a piston 12 pressing a friction pad 14 against the part 6, has a pin 26 carrying a rotatable nut 19 externally threaded and engaging an internal thread on the piston, the arrangement being such that the nut locks with the piston on movement of the piston towards the nut but turns on the pin and in the piston upon movement of the piston away from the pin. The device operates as an automatic adjuster when the actuator movement exceeds that permitted by the spring 28. The pin 26 is movable by a lever 21 pivoted at 22 and rotatable by a cable 25 when operation as a parking brake is required. Reference has been directed by the Comptroller to Specification 873,522.
Patent GB-487520-A (GB)
Title: Improvements in combinations of gasfilled electric discharge devices and materials adapted to be excited to luminescence by them
IPC: C09K11/67
Filed: 1937-02-19
Abstract: Materials resulting from the sintering together of magnesium oxide and titanium dioxide are employed in conjunction with electric discharge devices, especially high or low-pressure mercury discharge tubes, to produce a red luminescence.  A small quantity of chromium may be present as activator.  The proportion of titanium dioxide may vary from 10 per cent to 53 per cent and from 1 to 5 per cent of beryllium oxide may be included in the mixture.  The constituents are mixed and ground wet.  The mixture is then filtered, dried, and moulded and is sintered at between 1400 and 1500 DEG  C. resulting in a ceramic material which may be used to form part of the envelope of the discharge device or be applied thereto as a powder in a binding material.  The preferred composition is 47 per cent titanium dioxide, 48 per cent of magnesium oxide, 5 per cent beryllium oxide, and ,5 per cent of chromium.
Patent GB-974742-A (GB)
Title: A synchronising system for a time division multiplex code modulation system
IPC: H04J3/06
Filed: 1961-02-10
Abstract: 974,742. Multiplex pulse code signalling. NIPPON ELECTRIC CO. Ltd. Feb. 10, 1961 [Feb. 12, 1960], No. 5045/61. Heading H4L. In a pulse code modulation time division multiplex system wherein for synchronizing purposes a number of frames of pulses are grouped together in a " long frame," the synchronizing pulses which normally would appear in each frame are arranged in one frame in the " long frame," means being provided at the receiver responsive to lack of coincidence between the received synchronization pulses with similar pulses produced at the receiver to return the channel separator to its zero position. The synchronizing pulses may be all " marks " or all " spaces." Fig. 2 shows a system in which the synchronizing pulses are all spaces, the received signals at terminal 1 being supplied to a decoder 4 providing a demodulated output for each channel, and to a clock pulse generator 2 controlling a channel separator counter means 3. An AND gate 5 compares the received pulse sequence with the pulse sequence produced locally at the output of 3 and resets the channel separator 3 to its zero position if an error is detected, thereafter repeating this operation step-by-step until synchronism is restored. The channel separator 3 has kn output circuits where k is the number of frames in a " long frame " and n is the number of channels in a frame and logic circuits 9 combine the channel separating pulses appropriate to each channel. The system is stated to reduce the recovery time if synchronism should fail. Specifications 891,918 and 964,901 are referred to.
Patent GB-888865-A (GB)
Title: Titanium base alloys
IPC: C22C14/00
Filed: 1958-02-17
Abstract: A ductile titanium alloy contains the alpha-promoters Al and Sn with or without Ag and/or In in total amount not over 12,5 atomic per cent, Al being at least 0,5% by weight, Sn being in the range 1-23% by weight, Al being under 3% when Sn is under 5% and Sn exceeding 5% when Al exceeds 3%, Ag and In not exceeding 10% and 3% respectively, the alloy also containing 0,25-18% by weight of one or more of Zr, Hf, Mo, V, Nb, Ta, Cr, Mn, Fe, W, Co, Ni, Cu, Si and Be, but not over 14% of Cr and/or Mn, not over 8% of Fe and not over 5% in total of Co, Ni, Cu, Si and Be and not over 2% of Si and/or Be, the balance being at least 50% by weight of Ti, apart from the usual impurities. Specifications 757,383, 776,440, 782,503 and 782,564 are referred to.
Patent GB-712654-A (GB)
Title: Improvements in or relating to shoe upper conforming machines
IPC: A43D13/00
Filed: 1952-02-27
Abstract: 712,654. Tacking &c. machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., JAMES, C. H., and LANE. H. Feb. 26, 1953 [Feb. 27, 1952], No. 5098/52. Class 89(3) In fastener supplying mechanism for a pulling over machine of the kind described in, for example, Specification 373,183, wherein a headed tack is propelled by a puff of air along a duct 15 leading to a driver-guiding passage at a position above the normal level of a driver, the tack is moved into position above the driver as the fastener-inserting mechanism is moving into position for operation on the work. A rod 20, which actuates the usual tack-pot through a link 18 operates also a valve 209 for releasing puffs of air through a bell crank lever 227, a collar 223 on rod 221 and a lever 213, and a tack-pot gate 167 through the link 18, a slotted link 237 which provides lost motion and levers 175, 171. Air is supplied to the valve 209 through a pipe 211 from an accumulator- Specifications 396,086, 413,010, 521,442 539,458 and 550,831 also are referred to
Patent GB-430678-A (GB)
Title: Improvements in or relating to pressure gas burners
IPC: B01F5/04
Filed: 1934-02-16
Abstract: 430,678. Valves. HUME, R. H., 24, Priory Road, Edgbaston, and PALSER, J., 223, Sarehole Road, Hall Green, both in Birmingham. Feb. 16, 1934, No. 5120. [Class 135] [See also Group XI] In a pressure burner for furnaces &c., air and gas, supplied respectively through an inlet 4 and a sleeve 12, and an inlet 6 and rings of apertures 9, to the mixing-tube 1, are simultaneously controlled by axial adjustment of the sleeve 12 as by means of a circular rack 14 and a pinion 15, the air supply being controlled independently of the gas by rotation of the sleeve. The corresponding air ports 5, 29 in the inlet 4 and the sleeve 12 are of equilateral triangular shape and of such size that the relative proportion of air and gas remains substantially constant when the sleeve is axially adjusted. The pinion 15 and the spindle 13 are provided with graduated operating discs 20, 24, an adjustable screwed stud 27 limiting the axial movement of the sleeve. Helical or other oil grooves may be provided in the outer surface of the sleeve, or the inner surface of the body 2, and communicate with one or more oil cups on the body.
Patent GB-1193963-A (GB)
Title: Improvements relating to the Husbandry of Crops
Inventor: HIPWELL PETER JAMES
IPC: A01C7/20
Filed: 1966-06-03
Abstract: 1,193,963. Treatment of plants. NATIONAL RESEARCH DEVELOPMENT CORP. 5 June, 1967 [3 June, 1966; 2 Feb., 1967], Nos. 24886/66 and 5192/67. Heading A1D. Apparatus for the treatment of plants growing in a row comprises an electrical probe 8 connected by a lead 12 to electronic units 13-18 which operate a solenoid controlled valve 20 to control the flow of liquid from a spray nozzle 19, the electronic units including interval setting means which prevent actuation of the valve 20 by signals from the probe within the set interval. The apparatus is mounted on a beam 1 provided with skids 4.
Patent GB-1513051-A (GB)
Title: Spark-ignition internal combustion engines
IPC: F02M37/00
Filed: 1976-01-09
Abstract: 1513051 Spray carburetters; vaporizing fuel J WILKES and J WILKES 9 Jan 1976 [7 Feb 1975] 5238/75 Headings F1B and F1H Kerosene, paraffin or white spirit, supplied to a float chamber 11 is vaporized in a stainless steel pipe 17 in the exhaust manifold or a pipe in an inlet manifold jacket containing engine cooling water. The vapour is supplied to the float chamber above the liquid level and withdrawn therefrom through a pipe 16 connected to a petrol and air carburetter upstream or downstream of the petrol nozzle. The fuel is supplied from the tank 8 by gravity or an electric pump.
Patent GB-643973-A (GB)
Title: Improvements in or relating to private telephone exchange systems
IPC: H04M3/56
Filed: 1946-02-20
Abstract: 643,973. Switch contacts. FREESE, H., and CLAESSON, P. H. E. Feb. 20, 1946, No. 5271. Convention date, Feb. 20, 1945. [Class 38(v)] [Also in Groups XXXVIII, XXXIX and XL(b)] A spring for use in a push button spring set for use in a telephone system (see Group XXXIX) has two flexible portions carrying contacts 14, 15 which may be respectively actuated by two separate push buttons. In a spring assembly in which some springs are required to be actuated by one or other of the buttons only, the flexible' portions carrying contacts not required to be operated by a particular push button are cut off.
Patent GB-1140663-A (GB)
Title: Lincomycin derivatives
IPC: C07H15/16
Filed: 1966-02-07
Abstract: 1,140,663. Halo-lincomycin derivatives. UPJOHN CO. 7 Feb., 1966 [8 Feb., 1965; 1 Dec., 1965], No. 5299/66. Heading C2C. The invention comprises compounds of formula wherein R is a C 1-20  alkyl, C 3-8  cycloalkyl, C 4-8  cycloalkyl-alkyl, or C 7-12  aralkyl group and Ac is hydrogen or the acyl radical of an acid of one of the formulµ wherein R 1  and R 2  are C 1-20  alkylidene, C 3-8  cycloalkylidene, C 4-8  cycloalkyl-alkylidene or C 7-12  aralkylidene groups, R 3  is hydrogen or a group -HR 2 , and Z is an optionally substituted hydrocarbonyloxycarbonyl group or a trityl, diphenyl (p-methoxyphenyl) methyl, bis-(p-methoxyphenyl) phenyl-methyl, benzyl or p-nitrobenzyl group, and their preparation by reaction of the corresponding hydroxy compounds with thionyl chloride followed by heating, with if desired previous or subsequent interconversion of the group AcNH-. Inversion occurs in the reaction with thionyl chloride. Acid addition salts are also disclosed. The compounds of the invention closely analogous to lincomycin have antibiotic properties, and various products have buffer or antacid properties, react with isocyanates to form or modify polyurethanes or have surface active properties. The thiocyanic acid addition salts when condensed with formaldehyde form pickling inhibitors, the fluosilicic acid addition salt has mothproofing activity and the hexafluoroarsenic acid and hexafluorophosphoric acid addition salts have parasitic activity.
Patent GB-833528-A (GB)
Title: Improvements in or relating to connectors for the ends of electric power cables
IPC: H01R4/20
Filed: 1957-02-15
Abstract: 833,528. Sleeve couplings. TATE, J. E., and TATE BROS. Ltd. Feb. 13, 1958 [Feb. 15, 1957], No. 5301/57. Class 38 (1). A connector for an electric cable consists of a head 12 with a knurled shank 11 upon which is contracted a sleeve 10 that receives the cable (not shown). The head has a securing hole 15 and provision for attaching an auxiliary terminal, and may be a die casting integral with the shank 11. The sleeve may be drawn or extruded tubing and both parts may be of aluminium. In Fig. 1 the auxiliary terminal comprises a sleeve 17 with a forked end 18 which is attached to the head 12 by bolts through holes 16 or by a single bolt, but alternative arrangements are, an angled terminal with a flat end (Fig. 3, not shown), and a sleeve 17 cast integrally with the head 12, Fig. 5. Specification 601,670 is referred to.
Patent GB-913522-A (GB)
Title: Process for the production of melamine and guanidine sulphate
IPC: C07D251/60
Filed: 1960-02-01
Abstract: Melamine and/or guanidine sulphate are prepared by reacting urea, ammonia and sulphur dioxide; urea, ammonia and ammonium sulphamate; ammonia and guanidine sulphamate; or ammonia and guanidine sulphate at temperatures above 200 DEG C. and under a superatmospheric pressure of ammonia, the reaction being conducted in the presence of at least 40% of elemental sulphur based on the weight of the reactants.  The process is preferably carried out continuously, the sulphur recovered being recycled after removal of an amount equivalent to that formed during the reaction. Temperatures may be varied from 200 DEG C. to 360 DEG C. in order to control the relative proportions of melamine and guanidine sulphate formed, the formation of the former being favoured by the higher temperatures in the range. The process is preferably carried out in the presence of at least 0.001% by weight of boron or a compound of boron, or at least 0.01% by weight of a compound of phosphorus, antimony or arsenic, based on the weight of the reactants.
Patent GB-579396-A (GB)
Title: Improvements in or relating to dial indicator stands
IPC: G01B5/00
Filed: 1944-03-22
Abstract: 579,396. Lineardimension gauges. DENFORD, H. S. F. March 22, 1944, No. 5339. Addition to 552,840. [Class 106 (ii)] In the dial indicator stand of the parent Specification, the means for preventing rapid or accidental swinging of the dial arm when unlocked comprises a rotary body 44 adapted to turn relatively to the clamp 45 on a stud 43 project- ,ing therefrom, a conical 'spigot-and-socket joint 9 between the rotary body and clamp, a locking nut 50 screwed on to the stud and adapted to press the body 44 and tighten the conical joint, a washer 46, non-rotatable on stud 43, between the locking nut 50 and the rotary body 44, and a compression spring 18 pressing outwards against the washer and inwards to tighten the conical joint 9. A pellet of fibre 47 or the like is interposed between locking screw 14 and the dial arm 13. Also, a non-rotatable washer 49 on the screw 54 passing through lug 53 on dial indicator prevents rotary movement of the lug communicating with nut 19.
Patent GB-377597-A (GB)
Title: An improved rotary switch driven by an electric motor
IPC: H01H3/26
Filed: 1932-02-23
Abstract: 377,597. Electromagnetic switches. LANDIS & GYR AKT.-GES., 1, Hofstrasse, Zug, Switzerland. Feb. 23, 1932, No. 5365. Convention date, March 6, 1931. [Class 38 (v).] A drum-type multicontact switch p is driven through gearing by a Ferraris motor, of which the driving mag. nets a, b, the disc c, the adjustable damping magnet o, and the gearing e are mounted in a U. shaped frame h, i fixed to the rear wall of a casing by its yoke k, Further gearing f, g is mounted above the frame and the wheels f, g are readily interchangeable to vary the velocity ratio. The switch drum bears discs p with projections which coact with rollers on the switch springs q.
Patent GB-1365501-A (GB)
Title: Copolymerisation of olefins
IPC: C08F210/16
Filed: 1971-02-26
Abstract: 1365501 Amorphous ethylene-alpha olefin copolymers IMPERIAL CHEMICAL INDUSTRIES Ltd 14 Feb 1972 [26 Feb 1971] 5548/71 Addition to 1314828 Heading C3P An amorphous, vulcanizable, elastomeric copolymer of ethylene, a C 3 -C 10  alpha olefin, and optionally a non-conjugated diene is prepared by contacting the monomers with a catalyst composition prepared by reacting a complex of formula R m MX p  with an inert solid which has hydroxyl groups on its surface but is free from adsorbed water, the polymerization being carried out in an organic diluent in which the monomers and the greater part of the polymer product are soluble under the conditions of the reaction, where R is a hydrocarbon or substituted hydrocarbon group, M is a metal of Groups IVAVIA, X is a univalent anion or monodentate neutral ligand, m has a value from 2 to the maximum valency of M and n has a value from 0, to 2 less than the actual valency of M in the complex. The required amorphous polymer is the diluent-soluble portion of the product. It may be necessary to add one or more of the monomers continuously or in portions as the reaction proceeds to maintain a constant monomer ratio. Examples are given of the copolymerization of ethylene, propylene and, in some cases, ethylidene norbornene or 1,6-octadiene in decalin, heptane, toluene, ethylbenzene, 2,2, 4,6,6 - pentanethylheptane or chlorobenzene, catalysed by the product of reacting tetrabenzyl zirconium, tetrabenzyl titanium, tetrakis-(neopentyl) zirconium or (Me 3 SiCH 2 ) 4 Zr with y-alumina. Vulcanization of some of the pro. ducts is described.
Patent GB-671157-A (GB)
Title: Balanced motion converting mechanism
IPC: F16F15/26
Filed: 1950-03-06
Abstract: 671,157. Balancing reciprocating parts of machinery. SCINTILLA, Ltd. March 6, 1950 [March 29, 1949], No. 5610/50. Class 80 (iv). The primary and secondary inertia forces occurring in a crank mechanism reciprocating a high-speed saw 10 or the like are balanced by two pairs of oppositely-rotating eccentric masses 3<SP>1</SP>, 4' and 5 .6'.' The saw 10 is reciprocated through a connecting rod 11 by a crank pin 12 on a gear 3 meshing with a gear 5 driven by a motor pinion 2. The pinion 2 also meshes with a gear 4 which is mounted loosely on a stationary shaft 7 and which in turn drives a gear 6. The gears 3, 4 are of the same size, lie in parallel planes (with their axes displaced by a small amount e), and are driven in opposite directions at the same speed by the above-described gearing. Hence the eccentric masses 3', 4<SP>1</SP> balance the primary inertia forces. The secondary inertia forces are balanced by the eccentric masses 5', 6' carried by the equal gears 5, 6 which are rotated in opposite directions and at twice the speed of the gears 3, 4-i.e. at twice the speed of the reciprocation. A kinematic diagram (not shown) of a crank and connecting rod is given to indicate how the secondary inertia forces arise,
Patent GB-180070-A (GB)
Title: Improvements in paper bag making machines
IPC: B65H20/02
Filed: 1921-02-21
Abstract: 180,070. Collis, A. Feb. 21,1921. Paper bags, making. - Relates to machines for making paper bags in which the bag is formed from a reel of paper which is formed into a tube, the meeting edges gummed, the whole flattened and cut, and one end folded over to form the bag. The rollers 4, 21, which feed the tube are mounted in standards 1 so that the upper rollers can be lifted in case of an obstruction or for introducing a new tube. The lower roller 4 is carried on an axle 3 in the fixed bearings 2 and is driven by a gear 5. The upper rollers 21 are carried on an axle 20 in bearings 19 adapted to slide in slots 5<a> in the standards. The bearings 19 are carried on a rod 18 passing through a hollow screw-threaded stem 10 having a knurled head 11 by which it can be turned in order to adjust it relatively to a block 8. The block 8 is screw-threaded at 9 and engages a ring internally and externally threaded at 12, 13 and resting in a recess 7 in a bearing cap 6. A rack 15a, toothed at 16, engages the teeth 13, and is adapted to be moved by a handle 17. In use, the knurled heads 11, at either end, are actuated to position the rollers 4, 21 to suit the thickness of paper, but to lift the roller 21 sufficiently to insert a new paper tube or to clear an obstruction, the rack 15<a> is moved to rotate the screw-threads 12 and to lift the block 8, and thus the bearing 19. Springs 23 hold the bearing 19 just off the block 8.
Patent GB-734141-A (GB)
Title: Compositions relating to vegetation growth control
Inventor: BARRONS KEITH CONVERSE
IPC: C07C215/06
Filed: 1953-03-03
Abstract: A herbecidal composition comprises a ,a -dichloropropionic acid, or a salt thereof, and a minor proportion of a wetting or dispersing agent.  The active ingredient may be dispersed in a liquid petroleum distillate or mixed with a solid inert carrier, which may also include a wetting or dispersing agent.  Specified salts are the ammonium, sodium, potassium, lithium, magnesium, calcium, aluminium, copper, nickel, iron, zinc, anilinium, pyridinium, ethanol-ammonium, triethanolammonium and mono-, di- and trialkylammonium salts.  Solid carriers are pyrophyllite, diatomaceous earth, volcanic ash, kaolin, fuller's earth, wood flour and vermiculite.  Suitable dispersing agents are sulphonated castor oil, sodium lauryl sulphate, dioctyl sodium sulphosuccinate, sodium alkyl aryl sulphonates, polyalkylene glycol alkyl phenol ethers, derivatives of alkylene oxide with fatty acids, fatty alcohols and sorbitan-fatty acid condensates. The petroleum oil may be diesel fuel, kerosene or fuel oil.
Patent GB-326321-A (GB)
Title: Improvements in or connected with electric furnaces
IPC: H05B7/00
Filed: 1929-02-22
Abstract: 326,321. Kelly, T. D., and Leavey, G. E. Feb. 22, 1929. Furnace details.-An electrode furnace for melting or heating by direct current is supplied by a differentially wound generator giving a drooping voltage thus avoiding the necessity for large controlling resistances. Specification 310,119 is referred to.