baber/WOPTO huggingface dataset:
Patent GB-1105092-A (GB)
Title: Solvent recovery process
Inventor: BUSHNELL JAMES DYCKMAN
IPC: C10G21/00
Filed: 1965-08-16
Abstract: In a solvent-extraction process for selective extraction and removal of aromatics from hydrocarbons, any solvent vapours discharged (e.g. from safety-valves) in the event of abnormal conditions are conveyed to and condensed in a tank of cool oil which is subsequently used as a heating fluid.  As described with respect to the extraction of aromatics with phenol, the safety-valves lead to the storage tank of a circulating hot oil system used for heating other tanks by heat exchange.  Provision is made to divert the circulating oil via the extract solvent-recovery tower in order to recover phenol. Other selective solvents referred to are furfural, chlorex, nitrobenzene and sulphur dioxide.
Patent GB-621741-A (GB)
Title: Improvements in or relating to apparatus for recovering water soluble metallic saltsin waste plant effluents or spent process liquors
IPC: C02F1/52
Filed: 1945-12-28
Abstract: In a recovery apparatus for treating waste plant effluents containing metal salts and solid material, the effluent is treated with caustic solution to precipitate metal hydroxide, the liquid is aerated to cause at least the solid material to rise to the surface, and is then drawn by a vacuum into a chamber wherein the solid material and the hydroxides are separated from the liquid, the separated material being thereupon treated with acid to dissolve the hydroxides.  As applied to the treatment of a synthetic rubber-coagulant effluent solution containing aluminium sulphate and suspended particles of rubber (Fig. 3), 50 per cent caustic soda solution and the effluent are admixed in sump 11, aeration being effected by agitator 14, and by the introduction of air through a porous carborundum plate 36. The alkali supply valve 33 is actuated by a <PICT:0621741/III/1> pH control unit 34.  The liquid is drawn into vessel 12 by a vacuum pump 40 via a wide flared pipe 27, the rubber fines 17 collecting at the surface of the liquid, and the alumina particles in a layer just below.  The former are swept by a rotating skimmer 45 into funnel 16 which is provided with a ramp (not shown) just below the liquid surface, the outside metal strips 47 of the skimmer being hinged to swing backwards and upwards as they traverse the ramp.  The fines are washed down the funnel by a water spray 38, and together with the aluminium hydroxide escaping via duct 55, pass to reaction chamber 22 fitted with a stirrer 24 and supplied with concentrated sulphuric acid under control of pH unit 26.  Sump 23 receives the overflow, the concentrated aluminium sulphate solution being pumped out and added to another portion of the effluent solution to yield the proper aluminium sulphate concentration required for re-use in coagulation. The purified effluent escapes under weir 61 to sump 64.  In another apparatus, the porous plate 36 is absent, whereby in consequence of the lower degree of aeration the aluminium hydroxide particles sink to the bottom of vessel 12, and are with drawn separately to tank 22, the rubber fines being passed directly to sump 13.  They are removed periodically.  Reference is also made to the collection of the rubber fines in sump 64.
Patent GB-1064025-A (GB)
Title: Improvements relating to hydrocatalytic cracking
Inventor: TUPMAN KENNETH
IPC: C10G/
Filed: 1964-08-27
Abstract: A single-stage process for the production of middle distillate from wax distillate comprises contacting a wax distillate feedstock having a nitrogen content of at least 350 p.p.m. with a catalyst consisting of a Group VIA metal oxide or sulphide and cobalt oxide or sulphide as hydrogenating components supported on a base of alumina combined with either 5 to 25% by weight of total catalyst of silica or boria or 2 to 10% by weight of total catalyst of fluorine at a temperature of from 720 DEG  to 860 DEG  F., a total pressure of from 1200 to 3000 p.s.i.g., a total space velocity of 0.4 to 1.0 v./v./hr. and a gas rate of 4000 to 15,000 SCF/B, separating the product into lighter than middle distillate, middle distillate and wax distillate and recycling the wax distillate, the conversion per pass being maintained at 45 to 70% by volume of the total feed by increasing temperature during the reaction as necessary and the amount of fresh feed in the total feed being maintained substantially equal to the conversion per pass. The preferred Group VIA metal, used in all the examples, is molybdenum.
Patent GB-283111-A (GB)
Title: Improvements relating to the bearings of rapidly rotating shafts
IPC: F16C19/54
Filed: 1927-12-28
Abstract: 283,111. Aktiebolaget Separator. Jan. 3, 1927, [Convention date]. Driving; maintaining flow of cleansing air, -Rapidly rotating spindles for centrifugal apparatus and the like are supported on ball bearings e, f carried in a casing g capable of limited movement and having end closing means l to exclude dust or damp but permit the exit of oil laden air from the casing g. The cover l which has depending flanges m, n, may have wings or blades o, p, or grooves to induce rotation of air which is sucked through apertures t, r, and through the casing g. The latter is supported by a part j of the machine casing c preferably near the spindle-driving wormwheel s and also by a spring, rubber ring or the like i. The casing c has an integral or separate tubular sleeve h extending between the flanges m, n of the cover l.
Patent GB-467583-A (GB)
Title: Improvements in or relating to work-positioning means of shoe bottom pressing machines
IPC: A43D35/00
Filed: 1935-12-19
Abstract: 467,583. Boot - making machines. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation) Dec. 19, 1935, No. 35165. [Class 17 (i)] Sole-laying.-Relates to work-positioning means especially intended for sole-laying machines having a relatively stiff shoe bottom engaging member such as a resilient metal plate shaped to conform to the profile of the shoe bottom, and consists in a heel end support provided with a last pin or the like and so mounted that the last may be engaged with the pin while this is well remote from its operative position and the toe support, and then the last, and shoe thereon, may be moved lengthwise and heightwise of the shoe to operative position. The work support is self-adjusting about an axis extending width-wise of the shoe, and is automatically locked at the commencement of solelaying pressure. The last pin 46 is carried by a T-slide 48 laterally adjustable or movable in a block 50 carried by a pair of links 54 pivoted to a pair of links 56 pivoted to a rocking member 24 normally resting on a pin 26 carried by sideplates depending from a fixed head described in Specification 216,937, [Class 17 (i)]. The member 24 is slotted to engage the pin, and has a portion 68 wedge-shaped in section and cooperating with a complementary recess in a block 70 carried by the head, the recess being concentric with the pin 26. A toe end abutment is adjustable along the member 24, and laterally thereof, a pivoted latch 32 and setscrews 40 maintaining it in adjusted position. A pair of springs 58 urge the links toward their extended condition, where the block 50 contacts with a loop at the end of a rod 66, and the links 56 rest on stop pins 64. At this time the bottom pressing member is in its lower position, and the pin 26 at the top of its slot. The last, with a shoe thereon is positioned on the last pin and pushed forwardly until the toe is under the toe pad and the shoe bottom is correctly positioned on the shaped bottom engaging member. As this rises, the parts 68, 70 engage and lock to prevent longitudinal tip of the shoe. A chain passing over a pulley on the head and connected to the vertically moving assembly prevents the member 24 from tipping downwardly at its rear end when in inoperative position. U.S.A. Specification 1,825,704 is referred to.
Patent GB-1222785-A (GB)
Title: Bacterial protease compositions and process for preparing them
IPC: B01J2/28
Filed: 1969-07-14
Abstract: 1,222,785. Enzyme composition. PABST BREWING CO. 14 July, 1969 [16 July, 1968], No. 35285/69. Heading C3H. [Also in Division C5] A composition comprises bacterial protease and a water-soluble normally solid polyethylene glycol polymer in an amount sufficient to improve the granulating properties of said protease. The polymer may be dissolved in an aqueous solution of the protease and the composition dried and granulated, or alternatively an aqueous solution of the polymer may be sprayed on the dried protease and the product dried and granulated. The compositions may be extended with sodium sulphate and incorporated into detergent compositions.
Patent GB-1051747-A (GB)
IPC: B29C43/00
Filed: 1964-08-28
Abstract: 1,051,747. Coated sheet material. DOWTY SEALS Ltd. Aug. 24, 1965 [Aug. 28, 1964], No. 35300/64. Heading B2E. [Also in Divisions B5 and F2] A gasket is made by depositing layers 3 of sealing material around apertures 2 in a metal or plastic support member by a screen printing process. Alternatively, the sealing material may be deposited on to a transfer member by a screen printing process and then transferred to the support member. If desired, the apertures may be formed after depositing the sealing material. In Fig. 4 (not shown), the sealing material is deposited on to a component 5 instead of on to a sheet to be inserted between two components. The sealing material may be acrylonitrile or silicone rubber and, during curing, may be compressed into various shapes by the apparatus illustrated in Figs. 13 to 19 (not shown). A further layer of sealing material may be deposited on top of the first layer, Figs. 6 and 7 (not shown).
Patent GB-885153-A (GB)
Title: Improvements in or relating to gear wheels
IPC: F16H55/30
Filed: 1959-10-21
Abstract: 885,153. Toothed gearing. BOSCH G.m.b.H., ROBERT. Oct. 21, 1959 [Oct. 24, 1958], No. 35607/59. Class 80 (1). A gear-wheel comprises two stamped metal discs 1, which are in direct contact with one another and are non-detachably secured to a shaft 4, and a part 5 of synthetic resin which is injection moulded around the discs 1 and the end of the shaft and forms gear teeth 6. The discs 1 may be octagonal with their circumferences mutually offset so that their rim undulations overlap. Alternatively, the rims may have undulations of the forms 8, 9 or 10, Fig. 4, or holes may be provided as shown in sector 11. At least part of the outer disc edges extend into the zone of the tooth roots to facilitate the conduction of heat from the synthetic resin gear rim.
Patent GB-856684-A (GB)
Title: Improvements in or relating to timepiece escapement mechanisms
Inventor: OLIVER CHRISTOPHER SIBLEY
IPC: G04B15/00
Filed: 1957-11-15
Abstract: 856,684. Clocks and watches. ROTHERHAM & SONS Ltd. Nov. 4, 1958 [Nov. 15, 1957], No. 35611/57. Class 139 In a pin pallet lever escapement comprising a lever, 1, Fig. 1, having a locking pin 8 and an impulse pin 7, Fig. 7, the balance impulse pin 3 is directly impulsed by the teeth of the escape wheel 11. The lever is cut from sheet metal and has a counterbalancing extension 6. A curved arm 13 of the lever embraces the escape wheel arbor 12 to prevent overbanking.
Patent GB-1406691-A (GB)
Title: Semiconductor storage device
IPC: H03K19/094
Filed: 1972-07-31
Abstract: 1406691 Integrated circuits NIPPON GAKKI SEIZO KK 31 July 1972 [31 July 1971 (2) 1 Sept 1971 22 Nov 1971 (3)] 35683/72 Heading H1K [Also in Divisions G5 and H3] In a monolithic semiconductor analogue storage system stored information is represented by impedances exhibited by discrete elements within the monolith, which are selectively brought into circuit by switches operated in response to signals from read-out circuitry. The switches may be bipolar transistors or JUGFETs but as described are IGFETs. Typically, Fig. 1, the impedances are lengths of diffused resistive regions P 1 -P n  defined between one end, constituting the drain of an IGFET, and an intermediate point connected via a common aluminium track to an output terminal T out  which is connected through a load resistor to a voltage source. The resistors are successively switched into circuit by pulses applied by the read-out circuit to the gates of the associated IGFETs in response to a train of clock pulses. Operation of the read-out circuit is described. To simplify manufacture, which involves conventional diffusion, oxide patterning and aluminium deposition steps, instead of using a mask to form single interconnecting holes CP, &c. in the oxide overlying each resistor region, as shown, specific to a particular set of stored values, a plurality of holes or a continuous slot is formed over each region and particular stored values then determined by depositing the aluminium connector, as shown in Fig. 10 to short out the unwanted parts of the regions. Any holes not covered by the connector are optionally covered by isolated patches of aluminium for passivation. In alternative forms Figs. 3 and 4 respectively (not shown) in which the impedances are the channels of IGFETs which are identical except in respect of their channel lengths (Fig. 3, not shown) or widths (Fig. 4, not shown) and the common load is also an IGFET the read out pulses are fed to the respective IGFET gates. Finally as shown in Fig. 8 capacitors may be used as impedances. Series connected pairs of capacitors of different relative values but with each pair having the same total capacity are formed between diffused layers Pl 1  &c constituting the common terminals of respective pairs and portions of metallizations overlying thinned portions of the oxide thereon forming the other terminals. In operation, with, a 100 KHz signal applied across the pairs between terminal Tx and ground, the read out pulses, applied to gates of IGFETs TR 1 -TR 12  successively connect the common terminal to an output terminal T out . The arrangements may be used as function generators, complex musical tone generators, or digital to analogue converters by using a read out circuit at whose outputs pulses are produced in a sequence determined by coded digital input information.
Patent GB-1270058-A (GB)
Title: Improvements in or relating to rail grinders
IPC: E01B31/17
Filed: 1970-07-23
Abstract: 1,270,058. Grinding rails in situ. FRANK SPENO RAILROAD BALLAST CLEANING CO. Inc. 23 July, 1970 [30 July, 1969], No. 35692/70. Heading B3D. A rail grinder comprises a vehicle V guided for movement along a rail R, a grinding head G having a drive motor 22 and grinding wheel 26, fluid pressure means 28 for supporting a portion only of the weight of the head, the balance of the weight constituting the operating pressure of the wheel against the rail, the fluid pressure means having an expansible chamber, the volume of which varies with variations in the operating level of the head, and a pressure control unit 56 communicating with the chamber for automatically varying the pressure of fluid in the chamber as the head deviates from a predetermined operating level. The grinding head is carried by a cradle 20 supported for angular adjustment on trunnions 18 carried by slides 14 adjustable on cross-beams 12 of the vehicle. Rods 30 of fixed pistons are secured to the cradle, the pistons being disposed in the cylinders 27 of the fluid pressure means. The chambers of the cylinders are joined by a pipe 42 to the control unit 56 and an isolating valve 78 connected to a tank 46 containing a reservoir of liquid 46 pressurized by a cushion of gas or air 48 by a regulator 52 and source 54. The control unit contains two differential pistons 62, 64 at their lower ends connected by a passage 74, 76 to the pipe 42 and at their upper ends by a passage 70, 72 to the regulator. Piston 62 has its larger end uppermost and normally engages an abutment shoulder 66 and piston 64 has its larger end lowermost and normally engages an abutment shoulder 68. In operation, valve 78 is opened and the regulator adjusted so that the pressure in the cylinders 27 supports a predetermined portion of the weight of the grinding head so that the wheel 26 engages the rail at a predetermined pressure. The valve 78 is then closed. If, on movement of the vehicle, the grinding wheel passes a depressed portion of the rail, the lowering of the head displaces liquid from the cylinders 27 and causes movement of the differential piston 62; although the pressure above piston 62 remains constant, the increased pressure below the piston acts in the cylinders 27 to reduce the grinding pressure. If, however, the grinding wheel passes over a raised portion of the rail increasing the volume in the cylinders will draw liquid from below the piston 64 which will move downwardly because of the lower pressure and such lower pressure allows more of the weight of the head to act to increase the grinding pressure.
Patent GB-797108-A (GB)
Title: Improvements in or relating to synchronising pulse separator circuits particularly for television
Inventor: COPE JOHN EDWARD
IPC: H04N5/08
Filed: 1955-12-13
Abstract: 797,108. Television. PYE, Ltd. Dec. 13, 1956 [Dec. 13, 1955], No. 35756/55. Addition to 755,108. Class 40 (3). In a circuit arrangement for separating line and frame synchronizing signals from the picture components of a composite television signal as described in the parent Specification, the A.C. coupling between valves V1 and V2, which is provided by condenser C2, is supplemented by a D.C. coupling provided by resistor R8 connected in parallel with C2 to improve the limiting action of V1 when the applied waveform has a very low value.
Patent GB-1310560-A (GB)
Title: Rolls and rollers particularly for continuous casting plants bar deformation plants and for hot rolling mills operated at low rolling speeds
IPC: B22D11/128
Filed: 1970-07-23
Abstract: 1310560 Rollers VEREINIGTE OSTERREICHISCHE EISENUND STAHLWERKE AG 23 July 1970 [25 July 1969] 35813/70 Heading B3M [Also in Division F2] A roller for metal casting, bending or rolling consists of short heat and wear resistant dovetailed segments 3, 12 secured end to end in longitudinal or circumferential grooves 2, 11 in the surface of a cylindrical core 1, with tapering clearance gaps 16 between adjacent segments In Figs. 1 and 2 the segments are held in longitudinal grooves 2 against a central positioning ring 8 by bolts 9 passed through aligned holes 5 in the individual segments, while in Figs. 4 and 6 they are inserted into circumferential grooves 11 through a longitudinal gap 14 which is close by a locking bar 15 to secure the segments in position. For extreme operating conditions the segments may be made of a metal ceramic, e.g. molybdenum and zirconium oxide.
Patent GB-1185126-A (GB)
Title: Starting and Stopping Device for a Self-Igniting Injection-Type Internal Combustion Engine
IPC: F02B3/06
Filed: 1968-07-26
Abstract: 1,185,126. Starting and stopping fuel injection type compression ignition engine. DAIMLERBENZ A.G. July 26, 1968 [July 27, 1967], No.35831/68. Heading F1K. A starting and stopping device for a fuel injection type compression ignition internal-combustion engine comprises an operating member in the form of a key operated cylinder lock switch 2 which can be turned from a normal position in one direction against a resilient restoring force into a pre-heating position C in which glow plugs in the engine cylinders are energized and further into a starting position D in which the engine starter motor is additionally energized and in which the fuel injection pump is adjusted for the delivery of an excess quantity of fuel and in the other direction into a stop position A in which the engine is stopped by cutting off the fuel supply thereto. The operating member co-operates by way of a cam 4 secured thereto with a valve 5 situated in a vacuum piping system 11, 17 through which valve the vacuum which becomes available during the running of the engine serves for the control of an adjusting lever pre-loaded by a spring into a starting quantity position for a quantity control adjusting member on the injection pump. In the normal position of the operating member corresponding to running conditions the adjusting lever is moved into its full-load position and in the position of the safety key serving to shut-off the engine it is moved into its stop position one of the vacuum operated devices 15, 18 may be connected to vacuum in the normal position and the other in the stop position of the operating member. The source of vacuum may be a vacuum pump of a brake energizer or the depression in the engine inlet manifold.
Patent GB-892510-A (GB)
Title: Method of securing an insert of rigid material in a sheet of rigid material
Inventor: PRESTIGE HARRY THOMAS
IPC: B21D39/03
Filed: 1959-10-23
Abstract: 892,510. Assembling force fits; perforating. BELLING & LEE Ltd. Oct. 21, 1960 [Oct. 23, 1959], No. 35932/59. Class 83 (4). A method of securing an insert such as a disc in a sheet of metal or insulating material, as disclosed in Specification 776,373, wherein an aperture is punched in the sheet with the insert, or a sheet of the insert material under the punch so that it is forced into the sheared aperture, is further characterized in that at the same time as the insert is forced into the sheet at least one tongue is formed from the sheet material and caused to bite into the insert. In an embodiment, the insert consists of a phenolic resin disc 1 with a plurality of apertures 2, one disc being part of an electronic valve pin straightening device. The disc is placed on an aluminium sheet 3 supported on a die 4 provided with a cutting edge 5 having equispaced chamfered teeth 10 around the cutting edge. The shape of each tooth is shown in Fig. 4. During the jointing operation, which is effected by a punch 6, the teeth bite into the underside of the sheet 3 as the slug 7 is being punched out to cause tongues 14 to 17 (Fig. 3) to be formed out of the sheet material and these tongues bite into the sides of the disc to assist in anchoring it in the sheet 3. Alternatively, the teeth are formed on the punch 6, in which case the tongues will be formed on the top face of the sheet.
Patent GB-392271-A (GB)
Title: Improvements in apparatus for controlling the pressure in fire engine delivery hose
IPC: G05D16/18
Filed: 1931-12-30
Abstract: 392,271. Fire-engines; fire-extinguishing. RUTTER, H. C., Central Garage, Shaftesbury, Dorset. Dec. 30, 1931, No. 35950. [Class 47 (ii).] A fire-engine or hydrant is provided with a valve K to byepass the discharge to an outlet J when a stop-valve in the hose is closed, or other obstruction occurs. The valve K is loaded by a spring, the pressure of which can be adjusted by means of a hand-wheel L, the adjustment being indicated by a scale M. The stop valve is bolted to a wooden base A provided with a handle H. The valve is provided with base couplings C, D.
Patent GB-1422629-A (GB)
Title: Phenylderivatives
IPC: A01N43/20
Filed: 1974-08-16
Abstract: 1422629 Phenyl derivatives F HOFFMANNLA ROCHE & CO AG 16 Aug 1974 [17 Aug 1973] 36179/74 Heading C2C The invention comprises compounds of the formula where R 1  and R 2  each represent an alkyl group containing 2-4 carbon atoms or together with the carbon atom to which they are attached form a cyclopentyl or cyclohexyl ring which may carry 1-3 methyl substituents, R 3  represents methyl or ethyl, A and B together represent an additional bond or an oxygen bridge, C and D each represent hydrogen or together represent an additional bond and one of R k  and R y  is ethyl and the other is hydrogen. The compounds may be prepared by reacting together compounds of the formulµ where Z is Cl, Br or I and M is an alkali metal or alkaline earth metal, or by hydrogenating a compound of Formula I wherein A and B together represent an oxygen bridge and C and D together represent an additional bond, or by epoxidizing a compound of Formula I wherein A and B together represent an additional bond.