baber/WOPTO huggingface dataset:
Patent GB-1114901-A (GB)
Title: Epoxidation of olefinically unsaturated compounds
Inventor: KOLLAR JOHN
IPC: C07D301/19
Filed: 1965-05-21
Abstract: Epoxy compounds are prepared by reacting in the liquid phase an olefinically unsaturated compound having 5-30 carbon atoms in the olefinically unsaturated aliphatic chain with an organic hydroperoxide in the presence of a catalytic amount of a metal epoxidation catalyst which is added in the form of an organic compound of the metal and is soluble in the liquid reaction phase. Specified metals are V, Mo, W and Se.  The preferred catalysts are the naphthenates and carbonyls of Mo, V and W. Specified hydroperoxides include aralkyl and alkyl hydroperoxides, ketone peroxides and cyclohexanol oxidate.  It is preferred to operate at -20 DEG -200 DEG  C. in the presence of an organic solvent.  Suitable olefinic compounds include olefines and unsaturated alcohols and esters. Examples relate to the epoxides of methyl oleate and 4-vinylcyclohexene.
Patent GB-427956-A (GB)
Title: Improvements in hydraulic transmission mechanism for motor-driven vehicles and otherpurposes
IPC: B67B3/14
Filed: 1933-08-02
Abstract: 427,956. Hydraulic transmission of power. THOMA, H., 9, Bachstrasse, Karlsruhe, Germany. Aug. 2, 1933, No. 21755. Convention date, Aug. 4, 1932. [Class 69 (ii)] Hydraulic transmission mechanism comprises sets d, f, Fig. 1, of gear wheel or other pumps, the casing of each set being carried by the driving shaft a, the other member d<1> of one set being mounted on a shaft i which can be coupled to the final driven shaft g, and the other member f<1> of the other set being connected to the shaft i through epicyclic gearing. The gearing may com - prise a bevel wheel k meshing with pinions l, which are carried from the shaft i and mesh with a bevel wheel m, which may be prevented from rotation in one direction, e.g. by a pawl n. The pump inlets and outlets are connected as shown in Fig. 2 to the casing of a valve or valves o moved outwards by centrifugal force as the speed of the driving shaft increases, the outward movement moving a member r to the right against spring action. Manually operated means are also provided for moving the member r and valves when desired. When the valve o is in the position shown in Fig. 2, no drive is transmitted, as there is free circulation of liquid. When the passage v is shut off from tho passage y by the first outward movement of the valve, the shaft Is driven at a less speed than the shaft a. A further outward movement gives an increased speed, and the final outward movement shuts off the passage v from the passage t as shown in Fig. 6, and a direct drive transmission is effected, the pawl n being disengaged at this time. In order to prevent overheating, an auxiliary pump normally delivers oil through a pipe x, and oil returns to a reservoir 12 through pipes wand 21. If the flow and pressure in 21 becomes excessive, pressure entering at 17 moves a valve 23 to stop the supply and return.
Patent GB-1161395-A (GB)
Title: Improvements relating to Mass Spectrometers
Inventor: POWERS PATRICK
IPC: H01J49/02
Filed: 1966-05-17
Abstract: 1,161,395. Mass spectrometers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 12 May, 1967 [17 May, 1966], No. 21824/66. Heading H1D. An ion collector assembly for incorporation into a mass spectrometer comprises a flat plate 1 on which are mounted a series of individual ion collectors 3 each with its own electrical output connection 4 and each mounted at an independently adjustable position. The whole plate may be inserted into the spectrometer through a vacuum lock and the positions of the ion collectors may be determined against a template constituted by a photographic plate previously exposed in the spectrometer. Alternatively, a plate may be mounted permanently within the spectrometer and the collectors adjusted mechanically from outside the vacuum. Each collector 3 comprises an alumina tube provided internally with a conductive coating and partially cut away at one end to leave a concave portion for receiving the ions. The ion receiving ends of the collectors overlie slots 10 in the plate 1; slots 11 are used for the provision of clamping devices which engage the inner edges of the slots. The ion collectors may be flat plates or, in another embodiment, Fig. 3 (not shown), small spiral electron multipliers mounted on adjustable sub-assemblies which are provided with contact sliders engaging connection wires strung longitudinally across the supporting plate.
Patent GB-358165-A (GB)
Title: An improved brake or clutch
IPC: F16D51/04
Filed: 1930-07-18
Abstract: 358,165. Friction brakes and clutches. PRIEST, M. G. T., Selwyn Street, Vogeltown, New Plymouth, Taranaki, New Zealand. July 18, 1930, No. 21834. [Class 103 (i).] A brake or clutch of the expanding ring type comprises a plate 1 with a recessed edge 2 secured to a member 3, a split expanding ring 5 between the plate and a rotating drum 4, means for expanding and contracting the ring, and projections, preferably in the form of rollers 6 mounted in lugs 7 on the ring 5, extending into and bearing against the recessed edge 2 of the plate so that when the ring is expanded into contact with the drum the rollers 6 ride up the sides of the recesses 2. In a brake the member 3 does not rotate so rotation of the drum is stopped whereas in a clutch the member 3 rotates and is thus locked through the ring 5 and plate 1 to the drum and rotates with the latter. The ring 5 is expanded by a main eccentric 9 mounted on a sleeve 8 surrounding the member 3. Small shafts 13 passing through a slot 14 in the plate 1 are mounted in lugs 12 on the rings 5, each shaft having rigidly secured to it one or more eccentrics 15 and arms 17, the eccentrics 15 turning in fixed block members 16 and the arms 17 being provided with pins 18 moving in slotted lugs 11 of the strap 10 of the eccentric 9. When the sleeve 8 is turned it rotates the eccentric 9 and imparts a radial movement to the strap 10 which moves the arms 17 to turn the shafts 13 and eccentrics 15 so that the latter force apart the ends of the split ring 5. In a modification, the split ring is expanded by an arm on the sleeve 8 and a link connecting it with a second arm on an eccentric shaft mounted between lugs on one end of the ring and passing through a slot in the plate 1. A ring lining 24 may be fitted in the drum 4 which may be filled with oil. The means for rotating the sleeve 8 comprise a second sleeve 25, Fig. 4, connected thereto by pin or pins 41 and inclined slot or slots 42 and slidably keyed on the member 3, the sleeve being moved axially in opposition to a spring 34, which applies the clutch or brake, by means of a ring 26 loosely fitted on a circular groove in the sliding sleeve 25, and provided with pins 28 which engage opposite sides of a fork or ring 29 secured to an operating lever 30 and connected by a link 31 to a fixed bracket 32.
Patent GB-750514-A (GB)
Title: Improvements relating to instructional models for representing atomic structure
IPC: C10M169/00
Filed: 1953-08-07
Abstract: 750,514. Educational appliances. SCHWAIGER, K. Aug. 7, 1953, No. 21890/53. Addition to 713,955. Class 146(2) In a development of an instructional model for representing atomic structure by the use of cylindrical elements which can be placed one against the other or upon one another like building blocks and, assembled to form three-dimensional structures in accordance with Specification 713,955, the structure and conditions of excitation are represented-for the proton-two constructional elements are placed side-by-side with oppositely directed positive and negative poles indicated thereon, and-for the neutron -two elements placed one upon the other, self contained without indication of polarity. The atoms are built up into stereometric figures each representing the numbers of protons and neutrons corresponding to the atom or atom group represented. By different assemblies of individual constructional elements E or triangular groups of elements into atom models, e.g. a carbon atom. Fig. 9, carried out on the principle of the octahedron, particular atom series or atom groups of the periodic system can be shown. The resulting orbits of the potential particles of such an atomic structure may be shown by wires or bands P, Fig. 13, inside an enclosing transparent spherical surface or wire net t. Thermal longitudinal waves may also be shown by wires marked + and -. Triangular groups of elements may also be joined by their edges or by their apices to represent molecules of various substances and to represent the behaviour of the substances under the action of mechanical, thermal or electrical forces. The elements may consist of permanent magnets, and may be hinged or resiliently coupled together so that the elements may be manipulated relative to one another. The behaviour of atoms in the gaseous phase may be represented by models as shown e.g. in Fig. 33. The stable rotational axes that exist for an octahedron atom may be shown to indicate the effect produced when the internal atomic pressure resulting from intra-atomic charges exceed the normal atomspheric pressure bearing on the atom surface. The atom surfaces are lifted up until the internal excess pressure can escape. The axes may run through two surfaces, two edges, or as shown in Fig. 36 through two apices, in the latter case predominance of internal pressure over a centrifugal force set up by a low speed rotation gives a parallel oscillation of the elements with an amplitude a. The centrifugal force gives a predominance over the internal pressure at a high speed of rotation and is indicated by ocatedral deformations i.e. a shortening of the axial dimension and increasing the radial dimension.
Patent GB-1342317-A (GB)
Title: Method of detecting pressure differences in an apparatus for the preparation and cooling of synthesis gas
IPC: B01F23/10
Filed: 1971-04-19
Abstract: 1342317 Making combustible gas SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 19 April 1971 [20 Feb 1970] 22105/71 Heading C5E In an apparatus comprising a reactor 1 for making a combustible gas by the partial combustion of a hydrocarbon 4 with oxygen 3, optionally with steam, at superatmospheric pressure, and a waste heat boiler 6 having one or more helical tubes through which product gas is passed, means are provided for opening a valve 20 on a steam-discharge line 29 when excess pressure of steam in the boiler 6 over the pressure of product gas, both before and after cooling at 11, exceeds a predetermined value. The valve 20 is operated by a device 23 which receives signals from points 24, 25, 27 on the oxygen-supply line 3, gas outlet line 17, and steam outlet line 7, the device 23 operating when the pressure difference between 24, 27, or between 25, 27, exceeds a predetermined value. A valve 18 on a steam line 28 is set for a pressure.in the range 50 to 150 atmos. The device 23 may additionally act to close valves on the lines 3, 4, and the print 24 may be located in the reactor 1 or at the gas outlet thereof.
Patent GB-1455628-A (GB)
Title: Method and aparatus for handling stackable bodies
IPC: B65B63/02
Filed: 1974-05-17
Abstract: 1455628 Packaging machine OWENSCORNING FIBERGLAS CORP 17 May 1974 22168/74 Heading B8C Apparatus for handling a plurality of stackable bodies, e.g. batts B of glass fibre insulation, comprises means for supporting a plurality of the bodies on top of one another in a stack, stationary means engageable with one outer face of the stack, movable means engageable with the opposite outer face of the stack, and means for raising the movable means from a first position spaced from the stationary means to a second position nearer said means but still spaced therefrom. Apparatus is described for packaging batts B. In operation batts B are stacked on a table 16 which includes fingers 20, and end and side locating panels 22, 24, 26, 28. When the stack reaches a predetermined height a movable member 42 is moved up guides 32, 34 so that fingers 46 thereon raise the stack and compress it against the fingers 40 of a stationary member. A second stack of batts is then formed on the table 16 until the predetermined height is again reached. A second movable member 48 is then raised so that fingers 52 thereof compress the second stack against the fingers 46 of the first movable member. The unit comprising the guides 32, 34 and members 36, 42 and 48 is then located vertically by a hydraulic device and is retracted by a rod 56 moved by a hydraulic cylinder. The rod is then swung through 90 degrees and again advanced so as to place the stacks of batts within the compression chamber 80 of a packaging device. During this time the members 42 and 48 are lowered to allow the stacks to expand. The stacks are held in the chamber 80 by suction applied via perforations 100 in a back plate 86 while the members 36, 42 and 48 are withdrawn and returned to their starting positions. The batts in chamber 80 are compressed by a plate 90 and then pushed by a hydraulic ram 94 through a hole 96 in a side wall of the chamber into a bag or container 98.
Patent GB-1423542-A (GB)
Title: Direct positive silver halide photographic emulsions
IPC: G03C7/26
Filed: 1973-05-09
Abstract: 1423542 Photographic direct-positive silver halide emulsions FUJI PHOTO FILM CO Ltd 9 May 1973 [9 May 1972] 22208/73 Heading G2C  A direct-positive silver halide emulsion comprises chemically fogged silver halide of which at least 50 mole % is silver chloride, and at least one complex salt of Pd, Pt, Ir or Au added after the chemical fogging and having a reduction potential E<SP>m</SP> red  (determined by voltammetry at 25 C in a suitable concentration of an aqueous metal salt solution where 1M KCl is used as the supporting electrolyte or in a methanol solution where 1M potassium perchlorate is used as the supporting electrolyte, using a dropping mercury electrode, with a standard calomel electrode as the reference) not less positive than -0.3V. The complex salt may be potassium palladium tetrachloride, sodium palladium tetrachloride, potassium palladium tetracyanate, potassium palladium dioxalate, bispalladium acetylacetonate, alkali metal palladium thiokets complex salt, palladium mercapto complex salt, palladium platinous tetrachloride, potassium platinous dioxalate, sodium platinous dioxalate, sodium platinous tetracyanate, sodium aurous dithiosulphate, potassium aurous dithiocyanate or potassium indium (III) hexachloride. The silver halide may contain free electron-trapping nuclei in the interior of the silver halide grains. The emulsion may contain sufficient organic sensitizing dye to sensitize and/or to improve the clearness of the emulsion. The organic sensitizing dye may be a halogen acceptor having a reduction potential at least as negative as -0.7V, the difference between the oxidation and the reduction potentials being not less positive than 1.5V, or an electron acceptor having a reduction potential at least as positive as - 1.0V or both. The mean grain diameter of the silver halide grains may be 0.04-2 microns. The emulsion may contain a soluble bromide and/or a soluble iodide to increase the speed of the emulsion, and may be a monodisperse emulsion. The complex salt is intended to stabilize the organic sensitizing dye.
Patent GB-786270-A (GB)
Title: Improvements in or relating to replaceable button clamp
IPC: D05B3/14
Filed: 1954-07-29
Abstract: 786,270. Sewing machines. REECE CORPORATION. July 29, 1954 [April 16, 1954], No. 22235/54. Class 112 A button clamp for a button sewing machine to hold a button A of a limited range of sizes in position over the material to which it is to be sewn comprises a bottom plate 18 which is substantially the width of the button and arms 20 of resilient material adapted to embrace the button and having inwardly bent upper edges forming flanges adapted to engage the upper surface of the button and hold it against the bottom plate. The latter is formed with a dished seat 19 and a frontal notch 42, the work-engaging under surface being roughened, as at 40..The arms 20 are secured to the bent down end 17 of a shank 16 which extends rearwardly from the bottom plate, and which is slidably engagable with a horizontal slot provided in the presser foot on the machine, an aperture 22 in the rear end of the shank being engagable with a latch member provided on the presser foot. A spacer 30, which may be interposed between the bottom plate and the work, has a roughened under-surface 31, is formed with a frontal notch 41, is provided with a pair of upstanding pins 37 engagable with corresponding holes in the bottom plate, and is formed with a peripheral groove 35 adapted to be engaged by the forked front end 133 of a flat spring member 34 secured to the presser foot.
Patent GB-311149-A (GB)
Title: Improvements relating to packings for piston-rods and the like
IPC: F16J15/28
Filed: 1928-08-01
Abstract: 311,149. Zulver, C. Aug. 1, 1928. Addition to 311,140. Packing, metallic; removable carriers for. -In packing of the type described in the parent Specification comprising segmental cast - iron rings 4 pressed inwards by split steel rings 5, and having radial grooves 8, the packing-rings are housed in casing- rings of L-section. Preferably each casing- ring comprises two or more rings 9, 10 with flange and groove engagement, and the rings 9, 10 are preferably segmental and arranged to break joint. The grooves 8 in the sides of the packing - rings communicate with the spaces 23 at the back of the packing. Preferably the bore of the packing-rings decreases from the high-pressure end of the stuffing-box. Soft packing 22 may be inserted between the gland and the box, and lubricant may be supplied by a passage 20.
Patent GB-242240-A (GB)
Title: An improved process for the manufacture of artificial filaments films, plates and the like
IPC: D01F2/10
Filed: 1925-09-07
Abstract: Viscose filaments, films &c. are rendered resistant to water by forming within the filament &c., during spinning, suitable water-proofing substances; thus there is incorporated in the viscose solution a soluble salt of a base and in the spinning bath an organic acid which will form with the base an insoluble water-proofing compound; alternatively, the acid may be added to the viscose solution, and the salt to the spinning bath.  Suitable salts are sodium aluminate, aluminium chloride, sulphate and acetate, and salts of calcium, barium, strontium, tin, and zinc, or mixtures of these. The acids employed may be the higher fatty acids such as palmitic, stearic, oleic, erucic, and sulphoricinoleic acid, the hardened fatty acids, oxysebacic acid, halogenated fatty acids, resinic acids, wax acids, and aromatic acids such as salicylic acid and tannic acids; or the soaps of these acids may be used.
Patent GB-1394069-A (GB)
Title: Spring brake actuators
IPC: B60T17/08
Filed: 1972-05-12
Abstract: 1394069 Spring applied brake actuators CLAYTON DEWANDRE CO Ltd 2 May 1973 [12 May 1972] 22359/72 Heading F2F In a brake actuator having a piston structure actuated by a spring 15 to operate brakes, the spring acts through an annular thrust plate 16 and a bearing ring 17 of curved profile engaging a complementary surface on the structure so that spring thrust misalignment can be accommodated. The plate 16 has an angled surface 16a abutting the ring 17 of anti-friction material, which in turn abuts a sleeve 18 of the structure which comprises a dished pressing 2 or the ring 17 directly abuts the pressing. The actuator is combined with a compressed air actuated diaphragm 8, a rod 3 controlled by the piston 2 abutting the diaphragm in the rest position via a thrust plate or washer 11. For release of brakes if the air supply has failed a bolt 26 is turned to axially move a multi-armed spider 27 as shown, or a strap, engaging a radial abutment flange 18a of the sleeve 18 to retract the structure. During spring actuation, H-section guides 28 on the sleeve 18 slide relatively to the arms of the spider 27.
Patent GB-907034-A (GB)
Title: A viewing tube for a cystoscope
IPC: A61B1/002
Filed: 1959-06-30
Abstract: 907,034. Cysloscopes. ROSENFELD, E. B., TSEPELER, J. A., KIRSANOVA, N. N., and SIRKINA, T. A. June 30, 1959, No. 22372/59. Class 81 (2). A viewing tube for removably fitting into a cysloscope includes at the distal end a prism 1 which is mounted in a screwed-on headpiece and is spaced from an objective lens 2, the outer face of the prism serving as a protective surface for the optical system. The optical system includes condensing and inverting systems, an eyepiece and a protective glass for the eyepiece.
Patent GB-1311354-A (GB)
Title: Electrolytic hydrodimerization of acrylonitrile
IPC: C25B3/29
Filed: 1970-05-08
Abstract: 1311354 Electrolytic hydrodimerization process ASANI KASEI KOGYO KK 8 May 1970 [8 May 1969] 22408/70 Heading C2C [Also in Division C7] In producing adiponitrile by electrolytic hydrodimerization using an aqueous catholyte comprising acrylonitrile and a conductive supporting salt, such as quaternary (e.g. tetraalkyl) ammonium salt, or a halide, nitrate or phosphate, the conductive supporting salt is recovered from the catholyte by contacting at least a part of it with a cation exchange resin, e.g. of the strongly acidic sulphonate type or weakly acidic carboxylate type. Acrylonitrile and/or adiponitrile may be recovered from the catholyte by solvent extraction, decantation or evaporation, before or after the catholyte is contacted with the cation exchange resin. E.g. the catholyte may be an emulsion of an aqueous phase containing 2% acrylonitrile, 9% adiponitrile, 8% tetraethylammonium sulphate, 0À05% emulsifier polyvinyl alcohol, balance water, and an oil phase containing 17% acrylonitrile, 75% adiponitrile, 5% water and 3% organic byproducts comprising propionitrile. As shown, the catholyte emulsion recirculated through a tank 3 is passed consecutively in portions to acrylonitrile stripper 4, where the acrylonitrile recovered is recycled to the tank 3 and condensed water is discharged through end 6, then allowed to stand in decanter 7, where it is separated into aqueous and oil phases, and the separated aqueous phase only, e.g. passing through heat exchanger 9 and further (storage) decanter 10 and water addition tank 12, contacts the cation exchange resin in column 13; the conductive supporting salt thus regenerated is stored in tank 16 and continuously introduced into the tank 3. The catholyte is separated by a cation exchange diaphragm 1-3 from the anolyte, e.g. H 2 SO 4  solution, which is recirculated through tank 2. The cathode may be of Pb alloy containing 6% Sb, the anode of a similar alloy additionally containing 0À7% Ag.