baber/WOPTO huggingface dataset:
Patent GB-925948-A (GB)
Title: Improvements relating to cleaning machines
Inventor: ZUKAL FRANTISEK
IPC: B24C5/06
Filed: 1960-12-23
Abstract: 925,948. Bla ting. ZARODY V.I. LENINA PLZEN, NARODNI PODNIK. Dec. 23, 1960, No. 44341/60. Class 60. A cleaning machine comprises a two-disc impeller wheel mounted at both sides respectively in a front bearing and in a rear bearing, the cleaning medium being admitted through a hollow inlet shaft and the two-disc impeller wheel being driven by a flanged electric motor through a flexible coupling A two-disc impeller wheel 1 is mounted between flanges 2, 3 on the ends of hollow shafts 4, 5 mounted in bearings 6, 7. Cleaning medium is conveyed to the impeller, by compressed air, through a tube 8 extending through the hollow shaft 4 and fitted with an exchangeable elbow piece 9. A flanged electric motor 15 is supported by a circular flange 19 provided on the cover 20 of the bearing 7. The motor 15 drives the impeller through a coupling 10 comprising external ribs 12 on a hub 13 fitted on the motor shaft 14 and internal ribs 11 in the hollow shaft 5, with resilient inserts 16 between the ribs 11, 12 to prevent the transmission of shocks and vibrations from the impeller to the motor. The bearing body 21 of the bearing 7 has a flange 22 secured to a reinforced well 23 provided on the casing 24 in which the impeller is housed.
Patent GB-1417301-A (GB)
Title: Foam stabilizer for polyurethane foams
IPC: C08G18/00
Filed: 1973-09-21
Abstract: 1417301 Polyurethane foams WACKERCHEMIE GmbH 21 Sept 1973 [21 Sept 1972] 44346/73 Heading C3R A polyurethane foam is prepared from an organic diisocyanate and a polyether having an average of at least 2 hydroxy groups per molecule, in the presence of at least one of each of a crosslinking agent, a catalyst and a blowing agent and at least one foam stabilizer which is an organosiloxane having a boiling point of not more than 200‹ C. at 0À1 mm. Hg (absolute) and which is an hydrolysis product of a mixture of at least one silane of the formula and at least one mole of one or more silanes of the formula per equivalent of X in the first mentioned silane, where R is an aliphatic group preferably an alkyl group having up to 18 carbon atoms, or an aryl group, and each X is a hydrolysable atom or group and n is 0 or 1. The preferred organosiloxanes are the hydrolysis products of phenyltrichloro silane and trimethylchlorosilane in a molar ratio of from 1 : 4 to 1 : 12. The process is preferably carried out in a cold foaming system. The preferred diisocyanate is a mixture of from 30-70% wt. diphenylmethane-p,p<SP>1</SP>-diisocyanate and from 70-30% wt. toluenediisocyanate isomers. The polyether exemplified is a branched poly-ether initiated with glycerine consisting of oxyethylene and oxypropylene units. Suitable crosslinking agents are butane-1,4-diol, butane-2,3- diol, triethanolamine, neopentyl glycol, trimethylolpropane, 3,31 - dichloro - 4,4<SP>1</SP>- diaminodiphenylmethane and the compound The preferred catalyst is an amino compound such as triethylene diamine, N,N,N<SP>1</SP>,N<SP>1</SP>-tetramethyl - 1,3 - diamino - butane, N,N,N<SP>1</SP>,N<SP>1</SP>- tetramethyl - ethylenediamine, dimethylethanolamine, dimethylcyclohexylamine, triethylamine, dimethylpiperazine and N- methylmorpholine. The preferred blowing agent is water and/or monofluorotrichloromethane. The foams have a uniform soft skin and have both fine and open cells.
Patent GB-1328025-A (GB)
Title: Method and apparatus for discharging insulating materials
IPC: H02M7/515
Filed: 1971-09-23
Abstract: 1328025 Discharging static electricity LA CELLOPHANE 23 Sept 1971 [24 Sept 1970 18 June 1971] 44416/71 Heading H1X A method of discharging insulating material in an ambient medium comprises producing positive and negative ions in the vicinity of the insulating material by corona discharge from an electrode E1, E2 supplied with a first alternating waveform of steep energy gradient whose amplitude is high enough to ionize the ambient medium, followed by a second damped alternating waveform whose amplitude is insufficient to ionize the ambient medium. The second waveform prevents the ions from recombining but does not prevent their migration to the material to be discharged. The ambient medium may be air or nitrogen. Apparatus for carrying out the method comprises a thyristor bridge Th 1 , Th 2  supplied with D.C. by an auto-transformer A and full-wave rectifier P and triggered by a multi-vibrator V. The bridge is connected through an RC circuit to the primary winding of a transformer B the secondary winding of which is connected to two wires E1 and E2 connected in parallel in an earthed casing M adjacent the material to be discharged, e.g. a moving plastics film. Corona wires may be located on both sides of the film. The auto-transformer A provides a means of controlling the rate of charge removal for a given film velocity.
Patent GB-1111838-A (GB)
Title: Manufacture of chlorinated hydrocarbons
IPC: B01J21/16
Filed: 1965-10-20
Abstract: Chlorinated hydrocarbons are obtained by reacting feed gases comprising ethylene, HCl and a source of molecular oxygen in the presence of a Deacon catalyst supported on a monohydrate of alumina known as boehmite, of formula a -Al2O3.H2O, and possessing a microporous structure.  Compounds suitable for use as catalysts in conjunction with the above support are compounds of metals of multiple valency, selected from Cu, Fe and rare earth compounds and in addition an alkali metal compound or an alkaline earth metal compound may be present.  The supported catalysts may be used in a fixed bed or a fluidized bed. Examples are given which illustrate the process for the preparation of 1,2-dichloroethane.ALSO:An oxychlorination catalyst comprises a monohydrate of alumina known as boehmite of formula a Al2O3.H2O and possessing a microporous structure, impregnated with compounds of metals of multiple valency selected from Cu, Fe and rare earth compounds to which an alkali metal compound or an alkaline earth metal compound may be added.  The mean diameter of the pores of the boehmite employed preferably does not exceed 100 DEG A.
Patent GB-1138750-A (GB)
Title: Preparation of oximes
IPC: C01B21/14
Filed: 1966-10-06
Abstract: 1,138,750. Oximes. STAMICARBON N.V. 6 Oct., 1966 [16 Oct., 1965], No. 44743/66. Heading C2C. Cycloalkyl oximes are prepared by contacting in a reaction zone in countercurrent flow a stream of a solution of a C 4 -C 8  cyclic ketone in an organic solvent therefor, the solvent being water-insoluble or having a solubility in water of less than 0À1% by weight at 20 C. and which is a solvent for the oxime product; and a stream of an aqueous solution of the hydroxylammonium salt of an acid having a dissociation constant of from 2 Î 10<SP>-1</SP> to 10<SP>-6</SP>, said aqueous stream containing a further soluble salt of the said weak acid to provide, with free acid produced in the reaction zone, a buffered reaction medium; and withdrawing from the reaction zone a product stream of oxime dissolved in said solvent therefor, and an aqueous stream containing free acid and the soluble salt thereof; separating solvent from the said product oxime; and recycling the solvent thus obtained to the reaction zone. Suitable weak acids are phosphoric acid, ammonium bisulphate or alkali-metal bisulphates. Examples are described with reference to flow diagrams.
Patent GB-1062946-A (GB)
Title: Improvements in or relating to centrifugal pumps
Inventor: CAMAC GEORGE
IPC: F04D29/62
Filed: 1963-11-14
Abstract: 1,062,946. Mechanical seals; washers. SPEEDWELL RESEARCH Ltd. Nov. 3, 1964 [Nov. 14, 1963; Feb. 19, 1964], Nos. 44947/63 and 6878/64. Headings F2B and F2H. [Also in Division F1] In a centrifugal pump having an impeller mounted on a shaft in a chamber formed by two releasably-connected casing components, seal faces on a gland part in one casing component and a gland part on the shaft engage with relative rotation and are flushed at their outer peripheral edges by the liquid being pumped to prevent the formation of crystals at the faces. A collar 38 of ceramic, stainless steel or titanium, is supported in a rubber sealing ring 37 mounted in a rebate 36 in a casing component 10. A face 41 on the collar sealingly engages a face 42 on a graphite ring 43 engaging a rubber sealing ring 44 and embracing a sleeve 29 pinned at 32 to the shaft 31 of an electric motor 26a. Any liquid leaking past the faces 41, 42 is flung by a disc 33 out of peripheral spaces between the casing component 10 and the electric motor. A casing component 11 is detachably secured to the component 10 with a seal 21 therebetween, by three equi-angularly spaced thumb screws 22. Removal of the component 11 and a screw 50 permits removal of the impeller and rings 43, 44 for cleaning. The screw 50 abuts a rubber sealing washer 51 provided with a metal locking insert. The screw 50 and sleeve 29 may be of stainless steel or titanium.
Patent GB-1483923-A (GB)
Title: Beam positioning for optical scanning apparatus such as optical printers
IPC: G03B17/24
Filed: 1974-10-17
Abstract: 1483923 Automatic control EASTMAN KODAK CO 17 Oct 1974 [23 Oct 1973] 45022/74 Heading G3N In a device for recording characters on a lightsensitive medium and having galvanometer driven mirrors 7, 8 which deflect a modulated light beam B, a beam position circuit 13 is provided to produce a drive signal for determining the positions of the lines of characters on a page 10, the circuit 13 including a linearity correction circuit 2 to compensate for non-linearitier in the response of the respective galvanometer. As shown, an optical printer unit comprises vertical and horizontal deflection galvanometers 6, 9 which rotate respective mirrors 7, 8. When it is desired to start a new line L 12 , a control unit 14 generates a digital code LP and a timing pulse T 1  which cause a position voltage LV' 12  to be applied to a summing amplifier 5 which drives galvanometer 6. In response to a second timing pulse T 2 , part or all of the code LP is also applied to a correction circuit 2 which supplies an appropriate correction voltage CV 3  to the other input of amplifier 5. The voltage CV 3  compensates for the predetermined non-linear response of galvanometer 6 in its position corresponding to the new line. The empirically determined correction voltages CV 1  to CV n  are set by resistances CR 1  to Rn, Fig. 2 (not shown) and are selected by an analog multi-plexer (21). The lines on page 10 may be arranged in groups S 1 -S n , each correction voltage being applied throughout the time that its corresponding line group is being scanned.
Patent GB-959929-A (GB)
Title: Tong assembly
Inventor: KOEHLER ROBERT LEO
IPC: B66C23/36
Filed: 1962-11-29
Abstract: 959,929. Mobile crane with tongs attachment. CALAVAR CORPORATION. Nov. 29, 1962, No. 45133/62. Headings B8B and B8H The jaws 26, 28, Fig. 2, of a pair of tongs are opened and closed by an hydraulic ram 54 and links 70, 72 which are attached to a piston rod 60 by a sliding member 64, Fig. 3. Movement of the member 64 is guided by a pin 66 which coacts with guides 52. The ram is mounted between end plates 44, 48 welded to a base plate 16. A key-hole shaped hole in the plate 48 permits sliding of the piston-rod 60 and the member 64 and when a bar 76, Fig. 2, is detached the ram may be readily removed for servicing. The tongs may be attached to a sheave block 84, Fig. 7, of a mobile jib-crane 80 which has an hydraulically operated telescopic jib 82, a hoisting rope 86 and a winch 88.
Patent GB-1370458-A (GB)
Title: Gas-fired circulation water heater
IPC: F24H1/43
Filed: 1971-09-29
Abstract: 1370458 Water heaters JUNKERS & CO GmbH 29 Sept 1971 [8 Oct 1970] 45264/71 Headings F4W and F4A A gas-fired circulation water heater for a central heating system, adapted to be wallmounted by a support frame 10, comprises an air feed chamber 16 in communication with the atmosphere on the external side of the wall by an air inlet 162; the chamber 16 containing a combustion chamber 13 covered by an exhaust gas hood 131 and a burner 15 disposed underneath the chamber 13. The air feed chamber is defined by a front wall which also forms the front shell 12 of the heater, and by a rear wall 164 located between the combustion chamber 13 and the supporting frame 10. A service water heater and an expansion tank 20 are arranged behind the near wall 164.
Patent GB-1339309-A (GB)
Title: Catalyst for producing oxirane compounds by epoxidizing olefins with hydroperoxides
IPC: C07D303/04
Filed: 1971-09-29
Abstract: 1339309 Oxiranes SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 29 Sept 1971 [1 Oct 1970] 45352/71 Heading C2C [Also in Division B1] One or more olefins are reacted with one or more organic hydroperoxides to produce one or more oxirane compounds in the presence of a catalyst (see Division B1) containing silica and a metal or boron oxide, which has been treated with an organo-silane, -silamine, or -silazane. Examples are given of the epoxidation of octene- 1 with ethylbenzene hydroperoxide, and propylene with ethylbenzene hydroperoxide.
Patent GB-1490004-A (GB)
Title: Method and apparatus for lubricating fan blade bearings
IPC: F04D29/36
Filed: 1975-10-31
Abstract: 1490004 Lubricating bearings TURBO LUFTTECHNIK GmbH 31 Oct 1975 45516/75 Heading F2A [Also in Division Fl] The anti-friction root bearings 20 of the variable-pitch rotor blades 17 of an axial-flow fan are lubricated by means of an annular oil layer 53 which is maintained against an annular wall 19 by centrifugal force during rotation of the rotor, the oil being allowed to penetrate into the bearings. The oil can be replenished while the fan is stationary via a temporary connection 66 between a feed conduit 54 and an oil pump 55 located outside the fan casing 10. Replenishment may instead be effected even while the fan is running, the oil then being pumped via a conduit 61 to a stationary chamber 30 of an hydraulic blade pitch adjuster 25 and thence, via the hollow interior of a tubular member 28 which rotates with the rotor, to a chamber 32, from which it passes via duets 56, 57, 58 to the annular space 14 between the rotor shaft 12 and the axially movable spindle 13 of the pitch adjustment mechanism, and thence via passages 60 or via play in guide bushings 59 to the chamber 16 containing the oil layer 53. Further passages 60 may be provided to feed oil to the rotor of the previous stage of the fan.
Patent GB-1211691-A (GB)
Title: Improvements in or relating to press tools
Inventor: CLEMENT FREDERICK ARTHUR GLANV
IPC: B30B15/02
Filed: 1966-10-12
Abstract: 1,211,691. Sub-press mechanisms. REDMAN ENG. Ltd. 8 Jan., 1968 [12 Oct., 1966], No. 45606/66. Heading B3W. A sub-press mechanism for use in piercing or cropping comprises a frame 11, a ram 14 slidably mounted in the frame and urged by resilient means e.g. spring 36 to a retracted position and releasable co-operating means on the frame 11 and the ram 14 for holding the ram in extended position against the action of spring 36. As shown, an eccentric projection 25 on a cylinder 24 rotatable in a bore 23 in the frame 11 engages in a slot 26 in the ram 14. The cylinder can be rotated through 180 degrees from the Fig. 1 position to one in which the projection forces the ram downwards and is lockable in either position by engagement of a tapered screw (32), (Fig. 3, not shown), in one end or the other of a bore 31 in the frame 11. The ram may carry a punch or, as shown, a blade 17 engaging thrust facings 20 (22) (Fig. 2, not shown) on the ram and cooperating with blades (39) 40 arranged at right angles to each other. Stock guides 48 and (52) (Fig. 2) may be provided. In use the sub-press mechanism is loosely mounted on the bolster of a press by means of angle irons engaging in flanges (57) (58), Fig. 2 and a member engaging slot 60. Other cropping or piercing mechanisms may be similarly assembled on the bolster and all the cutters and punches are aligned with edges and holes respectively in a template and locked in extended cutting/piercing positions. Thus aligned with each other and engaged with the template the sub-press mechanisms are fixed to the bolster and the locking screw removed from the bore. The cylinder is rotated through 180 degrees and the screw inserted in the other end of the bore to retain the cylinder against movement during cutting/punching. In an alternative embodiment, Fig. 4 (not shown) the releasable co-operating means comprises a screw (76) mounted in a bore (74) in the ram and unscrewable so that the head (78) engages a recess (79) in the frame (65).
Patent GB-1360511-A (GB)
Title: Suspension for an electric dynamometer
IPC: G01L3/16
Filed: 1971-10-01
Abstract: 1360511 Springs for resilient mountings CARL SCHENCK MASCHINENFABRIK GmbH 1 Oct 1971 [10 April 1971] 45872/71 Heading F2S [Also in Division G1] A dynamometer is supported from a frame by a pair of crossed springs at each end (Figs. 1, 2, not shown), each spring being attached at the upper end to the dynamometer and at the lower end to a base frame, and including a central rigid portion 13 having an aperture 14 for passing the shaft of the dynamometer. The aperture 14 may. be open to one side. The bodies 13 may be recessed as shown in Fig' 4 so that two rigid bodies may be fitted into each other. Each spring may be produced in one piece or as an assembly of parts.
Patent GB-1338684-A (GB)
Title: Continuous process for the production of ethylene copolymers
IPC: C08F210/18
Filed: 1971-10-04
Abstract: 1338684 Continuous ethylene copolymerization ESSO RESEARCH & ENG CO 4 Oct 1971 [19 Oct 1970] 46055/71 Heading C3P A continuous process for producing an elastomeric copolymer and a C 3  to C 8  α-olefin and optionally an acyclic or alicyclic diolefin in a staged reactor system in series comprises: (a) adding to a first reactor, ethylene, the α-olefin and optionally the diolefin, a catalyst comprising a transition metal compound and an organoaluminium compound in a mole ratio of 2 to 20 and a solvent, the polymerization being effected at a uniform temperature of - 50 to 80 C. and a pressure at least to the combined vapour pressure of the solvent and reaction components; (b) feeding to a second reactor effluent polymer cement from the first reactor, at least one α-olefin added to the first reactor, additional organoaluminium compound and a reactivator comprising a compound of formula RSO n Y where R is a C 2  to C 12  alkyl, aryl, alkaryl, aralkyl or cycloalkyl hydrocarbon radical, n is 1 or 2 and Y is Cl, Br or I and subjecting the contents of the second reactor to the same conditions as in the first reactor thereby forming a final polymer cement; (c) transferring said final cement to a quench tank and quenching it with an inactivating medium for the catalyst and recovering the polymer from the quenched cement. Hydrogen may be added to one reactor stage. The transition metal compound may be VOCl 3  used alone or in admixture with tetrabutyltitanate. The reactivator may be an aryl (e.g. benzene) sulphonyl chloride, bromide or iodide. The non-conjugated diolefin may be 1,4 - hexadiene, dicyclopentadiene, 5 - methylene 2 - norbornene, 5 - ethylidene 2 - norbornene or 2 - methyl norboradiene. In the examples ethylene and propylene are copolymerized alone or with 5-ethylidene 2-norbornene or hydrogen in heptane or hexane using VOCl 3  and one of Et 3 Al 2 Cl 3 , Et 2 AlCl or mixtures thereof in the first reactor with Et 3 Al 2 Cl 3 , Et 2 AlCl or mixtures thereof being fed to the second reactor together with benzene sulphonyl chloride. The polymer is quenched in isopropanol.
Patent GB-1113218-A (GB)
Title: New ether-amides
Inventor: ZIVKOVIC DUSAN
IPC: C07C59/64
Filed: 1965-11-01
Abstract: Novel compounds of formula <FORM:1113218/C2/1> wherein A represents a hydrogen or halogen atom or an alkyl, haloalkyl or alkoxy radical having up to 5 carbon atoms, R and R1 are hydrogen atoms, or saturated or unsaturated, straight or branched chain aliphatic hydrocarbon radicals containing up to 5 carbon atoms, or together with the nitrogen atom to which they are attached represent an unsubstituted or substituted heterocyclic radical, R11 represents a saturated or unsaturated, straight or branched chain aliphatic hydrocarbon radical containing up to 5 carbon atoms, which may be substituted by alkoxy radicals containing up to 5 carbon atoms, or by an aryloxy radical, and R111 represents a saturated or unsaturated, straight or branched chain aliphatic hydrocarbon radical containing up to 5 carbon atoms, or a cycloalkyl radical, and, when -NRR1 represents an N-methyl-piperazino group, the hydrochloride thereof, are prepared by reacting an alkyl 2-(A-phenyl)-2-R111-2-hydroxyacetate with an active alkali metal compound to give the corresponding alkali metal derivative, condensing this compound with an R11 halide, hydrolysing the alkyl 2 - (A - phenyl) - 2 - R111 - 2 - OR11 - acetate thus obtained, converting the free 2-(A-phenyl)-2-R111-2-OR11-acetic acid produced to its acid halide, and reacting the acid halide with an amine HNRR1.
Patent GB-958080-A (GB)
Title: Improvements in or relating to the dyeing of yarn
IPC: D06P1/00
Filed: 1961-12-27
Abstract: 958,080. Dyeing grey cotton yarn; apparatus for treating yarns. CHEONG YING CHAN. Oct. 15, 1962 [Dec.27, 1961], No. 46356/61. Headings D1B and D1L. A process for forming a warp beam from grey cellulosic yarn comprises taking a set of individual parallel grey yarns, treating the yarn with dye under mechanical pressure and winding the set of dyed yarns on a warp beam. The yarn may be passed through a dyebath and while still wet passed between two pressure rollers, the force acting between said rollers being 5, 000-7, 000 lb. corresponding the pressures of 450-650 lb./sq. inch. This or more passes through the dyebath and rollers may be employed. The preferred process is carried out by means of an apparatus illustrated in Figs. I and II wherein the set of grey cotton yarns 1, are passed through both parts of a heated dyebath 2 (containing, e.g. a sulphur, vat or direct dyestuff). The dyed yarn is then marked by means of sprays 12 and bath 13 and boiling water 14 then semi-dried by means of squeeze rolls 16 and 17 and thereafter sized in sizing bath 21 and squeezed between rollers 22 and 23. The sized yarn is dried by passing it round a series of steam-heated cylinders 24. Adjacent parallel yarns are then separated in the vertical plane by fins 26 and 27 and finally wound on to the warp beam 32. An example is given of dyeing No. 10 grey cotton yarn and forming it into a warp beam for producing Denim cloth.
Patent GB-1440316-A (GB)
Title: Filtration equipment
IPC: B01D35/02
Filed: 1972-10-06
Abstract: 1440316 Water filter FILTRATION (WATER TREATMENT ENGS) Ltd 26 Sept 1973 [6 Oct 1972] 46363/72 Heading BID A swimming pool filter comprises a housing 21, enclosing a sand filter bed, and an upstream pump and motor unit 23 mounted on a bracket (27) on the side wall of the housing. Installation is thus simplified as only the housing 21 has to be secured directly to concrete base 22b, its legs 21a resting on pads 22a. A strainer 28 upstream of the pump rests on plinth 29.
Patent GB-1422520-A (GB)
Title: Manufacture of pipes
IPC: F16L9/16
Filed: 1971-10-06
Abstract: 1422520 Making pipes of fibrous material and bitumen F C FIELDSEND and E BURGEJONES 4 Jan 1973 [6 Oct 1971] 46487/71 Heading F2P A method of making pipes of fibrous material comprises impregnating sheets of fibrous material with bitumen, laminating at least two such sheets together and lapping or winding the laminated material helically into pipe form, applying molten bitumen as an adhesive. The fibrous material is preferably paper or chipboard and the impregnation of the sheets can be up to 75% penetration. The inner and outer surfaces of the pipes may be treated to ensure smoothness and to provide a required finish, e.g. coating with stainless steel. Reinforcing fibres of cotton, rayon, nylon or glass may be introduced at the laminating stage and/or during the winding process.