baber/WOPTO huggingface dataset:
Patent GB-801417-A (GB)
Title: Improvements in or relating to methods of producing unsaturated primary or secondary alcohols
IPC: C07C33/025
Filed: 1956-09-11
Abstract: Unsaturated primary and secondary alcohols are produced by reducing an aldehyde or ketone of the unsaturated aliphatic or mixed aliphaticalicyclic series by means of a dialkyl-aluminium hydride or trialkyl-aluminium.  ("Mixed aliphatic - alicyclic series" means compounds wherein an aliphatic chain is linked to an alicyclic ring). Preferably the alkyl groups in the dialkyl-aluminium hydride and trialkylaluminium contain 1-6 carbon atoms and the reduction is carried out between -50 DEG  and +50 DEG  C. in the presence of an inert solvent.  In an example, b -ionylidene acetaldehyde in benzene is cooled to 5 DEG  C. and a solution of diisobutyl-aluminium hydride added.  The solution is stirred for a period at 35 DEG  C., cooled to 0 DEG  C. and carefully decomposed by moist diethyl ether, followed by acidulated water, to yield b -ionylidene ethanol.  In the same manner is prepared b -ionylidene ethanol from b -ionylidene acetaldehyde using tri-isobutyl aluminium in cyclohexane; Vitamin A from Vitamin A aldehyde using triethyl-aluminium in n-hexane; and 1-(21,21,61-trimethyl-cyclohexene - 61 - yl - 11) - 3 - methyl octatriene-1,2,4-ol-7, from 1-(21,21,61-trimethyl-cyclohexene - 61 - yl - 11) - 3 - methyl octatriene - 1,2,4-one-7, ("C18 ketone") using tri-isobutyl aluminium in petroleum ether.
Patent GB-1195487-A (GB)
Title: Tilt Sensing Means for a Gyroscope
Inventor: BINDER HERBERT
IPC: G01C19/28
Filed: 1968-06-11
Abstract: 1,195,487. Measuring tilt electrically. SINGER-GENERAL PRECISION Inc. June 11, 1968, No. 27775/68. Heading GIN. The angle of tilt of the rotor 14 Fig. 1 of a gyroscope about each of two axes 20, 22 mutually perpendicular to the spin axis 16 is measured by inductive sensors 24, 26 and 28, 30 on each of the two axes, co-operating with a magnetizable ring 18 on the rotor. Each sensor comprises a coil 40, 42 Fig. 3 on one leg 36, 38 of a U-shaped core 32 attached to the housing 12. The two coils 40, 42 joined in series form one arm of a bridge circuit, the adjacent arm being formed by the coils of the diametrically opposite sensor, e. g. sensors 24, 26, and the bridge is completed by fixed equal resistors. The bridge is normally balanced but when the rotor axis 16 tilts about e.g. axis 20 the gaps between the sensors 24, 26 and ring 18 vary differentially, and the bridge unbalance indicates the magnitude and direction of tilt. The other pair of sensors 28, 30 may form an additional branch of the same bridge, to determine tilt about the other axis 22.
Patent GB-419117-A (GB)
Title: Improvements in and relating to processes and apparatus for the transfer of heat from compressed gases, more particularly from the gases discharged from explosion chambers, preferably from the explosion chambers for turbines, to other materials
IPC: F02C6/18
Filed: 1933-10-09
Abstract: 419,117. Gas-turbine plant. HOLZWARTH, H., 7, Goethestrasse, D³sseldorf, Germany. Oct. 9, 1933, No. 27810. Convention date, Jan. 25. [Class 110 (iii).] Compressed gases produced in an explosion chamber, preferably that of a gas turbine, are given a whirling motion and passed through a heat-exchanger such as a boiler. Fig. 1 shows the lay-out, the explosion chamber A being provided with the usual automatically operated valves, viz., B for air supply, C for fuel supply, and D for discharge. The products of combustion pass through a channel R into a heatexchanger S, Fig. 2, which is made up of a number of oval chambers 7 connected alternatively at their peripheries and centres by pipes 8 and passages 11. Ribs and projections are arranged to ensure a whirling motion. Water is passed by pipe W<2>, the cooling jackets of the explosion chamber A and the channel R, and a throttle valve V<2> to the space surrounding the chambers 7. Water is led also to spaces 17, 18 at the ends of the heat-exchanger past throttle-valves V<1>, V<3>, and all of the superheated water is passed through a reducing valve Z to a vessel W from which steam is drawn off at Y. The unvaporized water is returned to the circuit by a pump Z<1>, and make-up water is supplied by a pump Z<2>. The passages are arranged so that the gases increase in velocity as they pass through the heatexchanger. In a modification the water is passed through tubes surrounded by baffle tubes traversed by the gases. 419,117.
Patent GB-1275691-A (GB)
Title: A combination of a container and a device for the emptying thereof
IPC: B65F3/28
Filed: 1970-06-09
Abstract: 1275691 Emptying containers NORBA AB 9 June 1970 [10 June 1969] 27818/70 Heading B8E A device for emptying a container 2 of a refuse lorry comprises an hydraulically actuated pressure member 6 which extends across the container and has limbs 8 and 9 normally lying adjacent the top 11 and closed end 10 of the container, the member being moved along guides 16, 17 during emptying, towards the container discharge end 4. An hydraulic ram 20, supplied from a fluid reservoir beneath the guide 17, initially pivots the member 6 about its top edge 13 until the top and bottom edges of the member are substantially in vertical alignment whereafter the member is moved rearwardly discharging the container contents.
Patent GB-1133102-A (GB)
Title: Improvements in or relating to propulsion systems for ships
Inventor: ANGIER RICHARD
IPC: B63H11/08
Filed: 1965-07-01
Abstract: 1,133,102. Marine jet propulsion. UA ENG. Ltd. 3 Oct., 1966 [1 July, 1965], No. 27827/65. Heading B7V. A propulsion system comprises a pair of separate ducts 1 in the bow region of a hull of a vessel on opposite sides thereof with forward intakes 5 and rear outlets 8 which break through the hull below the waterline, two impellers 9 mounted at an intermediate position in the ducts, and driving means 11 which enable the impellers to be driven at a controlled differential speed. A deflector 12 may be provided adjacent each outlet movable from an inoperative position in a recess 13 into the hydraulic jet for steering.
Patent GB-1378198-A (GB)
Title: Process for forming images
IPC: G03C7/02
Filed: 1972-06-14
Abstract: 1378198 Dye images FUJI PHOTO FILM CO Ltd DAI NIPPON PRINTING CO Ltd and E INOUE 14 June 1972 [18 June 1971(2)] 27871/72 Heading G2C A supported layer of photo-sensitive organic colorant is imagewise exposed to light or heat, an imagewise change in colour thereby being produced, and the unexposed colorant is removed or transferred to a receiver using a weakly polar solvent. The exposed colorant may be subsequently transferred to a further receiver using a strongly polar solvent or heat. The supported layer may be 0À1-10 micron thick and may be produced by vacuum evaporation or coating from a solution in a volatile solvent. Examples of colorants, solvents and substrates are given.
Patent GB-656692-A (GB)
Title: Improvements in or relating to electric trigger circuits employing semi-conductors
Inventor: REEVES ALEC HARLEY
IPC: H01L21/00
Filed: 1948-10-27
Abstract: 656,692. Calculating. STANDARD TELEPHONES & CABLES, Ltd. Oct. 27, 1948, No. 27894. [Class 106 (i)] [Also in Groups XXXIX and XL (c)] In an electric trigger circuit comprising a crystal triode the input and output circuits are coupled to produce positive feed-back so that the circuit has two different current conditions at least one of which is stable. An input pulse is applied to switch the circuit from the low to the high current condition or vice versa and an output pulse is derived from the crystal triode. Fig. 4 shows a trigger circuit in which the crystal triode, Figs. 1 and 2, may consist of a germanium crystal 1 attached to a base electrode 3 with an emitter electrode 4 and a collector electrode 5. Since there is no phase shift between the input and output circuits resistor 6 produces positive feed-back and the bias of the input electrode 4 with respect to the base 3 may be adjusted so that the circuit is stable at either or both of the low and high current points shown at A and B respectively in Fig. 3. If the bias voltages of sources 7 and 8 are adjusted to make the electrodes 4 and 5 positive and negative respectively in relation to electrode 3 then a positive input pulse at terminal 9 will switch the circuit from state A to state B of Fig. 3 and a negative input pulse will revert to circuit to its original state, an output pulse being taken from terminal 11. The circuit may thus function as a trigger pair circuit. Fig. 8 shows a crystal triode used in a pulse frequency divider or binary counting chain. An input train of regularly recurring pulses is applied to the input 43, 44 of a trigger circuit as described in connection with Fig. 4 so that output pulses of half the input repetition frequency are produced at the output electrode 5. These are differentiated by the network 49, 50 and applied to the biassed crystal triode buffer stage 47 which responds only to the positive going differentiated pulses whose amplitude exceeds a given level so that a train of positive going output pulses is obtained at 56, 57 having a repetition frequency half that of the input train. A number of such circuits may be connected in tandem with or without the buffer stages 47 to produce a binary counting chain.
Patent GB-336071-A (GB)
Title: Improvements in ladder webs for venetian blinds
IPC: D03D1/08
Filed: 1929-09-14
Abstract: 336,071. French, G. F., and French, R. Sept. 14, 1929. Fashioned fabrics.- Ladder webs for Venetian blinds wherein staggered lath-supporting part width webs or straps C, D forming bridges are situated between and interwoven at intervals with two continuous body webs A, B have extra warps forming second or extra dummy straps a, the laths being inserted between the webs C or D and the corresponding dummy straps as shown in Fig. 3. These dummy straps may be actuated directly above or to one side of the corresponding webs C, D, and they may be formed by extra warps which are not shed during the weaving, an additional dobby or jacquard, or heald shafts or additional hooks or jacks being used to control them. In a modification, whilst a web C or D is being woven into the main webs A, B the shuttle used for each web is employed to insert weft into the warp a forming the opposite dummy strap. In a further modification, the webs C and D and the corresponding dummy straps are supplied alternately with weft from the same shuttle, the weft d connecting the webs and dummy straps being subsequently severed. As shown, the dummy straps may be connected to the main webs A, B at points slightly in advance of the webs or straps C, D. Lengths of narrow braid or tape or cords may be used as part of the extra warp. The ladder web is woven by means of four shuttles.
Patent GB-818820-A (GB)
Title: Multiple completion well apparatus
IPC: E21B33/047
Filed: 1956-09-13
Abstract: 818,820. Wells. BUTLER, G. A. Sept. 13, 1956 [April 24, 1956], No. 28039/56. Class 85 In a well-head supporting a plurality of parallel well pipes, at least one of the flow passages through the head is shaped to hold a valved plug. The couplings 32 supporting the well pipes (not shown) have internal grooves 72, 74 which are engaged by a back pressure valve 75 having control collars 76, 77 and inserted in the flow passage from above.
Patent GB-839262-A (GB)
Title: Improvements relating to flexible metal pipe units and the manufacture thereof
IPC: F16L33/26
Filed: 1957-09-05
Abstract: 839,262. Pipe couplings. AVICA EQUIPMENT Ltd., and MILLAR, J. H. Sept. 3, 1958 [Sept. 5, 1957], No. 28077/57. Class 99(1). A corrugated metal tube 1, preferably reinforced by a braided metal cover 2, has its terminal corrugations compressed to form a block 5 which is welded to the cover 2 and to an end fitting comprising a spigot 3 and ferrule 4. The ferrule 4 may be swaged on to the tube and reinforcement at 4b. In another embodiment, Fig. 3, a gripper 8 is fitted to the tube 1 and may be roughened on its outer surface to grip the reinforcement 2 of braided metal wire. The metal for welding can be provided by the flange 9 or can be a separate annular ring. A further embodiment has the ferrule 4 and reinforcement 2 extending past the block 5 to cover the rim of the flange 9.
Patent GB-1030865-A (GB)
Title: Ceramic materials
Inventor: ROBIETTE ALFRED GORDON EVANS
IPC: C04B35/65
Filed: 1961-08-02
Abstract: Ceramics are formed by mixing a major proportion of a granular ceramic material with aluminium powder and/or magnesium powder and/or calcium powder and an oxidizing chromium compound, compacting to a desired shape and heating to cause reaction and consolidation. The chromium compound may be a chromate, dichromate or chromic anhydride. The ceramic materials specified are calcined magnesite and dolomite, alumina, chromite, chromic magnesite, spinel and silicon carbides. Temporary binders may be employed, e.g. water, wax, oil, magnesium sulphate solution, sugar, or molasses.
Patent GB-1315237-A (GB)
Title: Dyeing and printing of polyamide fibres
IPC: D06P3/06
Filed: 1971-06-16
Abstract: 1315237 Dyeing polyamides CIBA-GEIGY AG 16 June 1971 [23 June 1970 21 April 1971] 28104/71 Heading D1B Synthetic and natural polyamides are dyed or printed with dyes of formula I in which one X is H. lal or CH 3  the other X preferably that in the para position to the -NH- group denotes a propionylamino group optional mixed with other acid dyes. The materials, e.g. wool, silk, leather and nylon are padded or sprayed with the dye solution followed by steaming. Aqueous dyeing solutions used contain 0.5 to 3% by weight of the above dyes, continuous dyeing processes being referred to.
Patent GB-638222-A (GB)
Title: Improvements in or relating to the separation of solid materials of different specific gravities
IPC: B03B5/38
Filed: 1947-10-21
Abstract: 638,222. Washing granular materials. COLLIERY ENGINEERING, Ltd., and LAWRIE, A. E. Oct. 21, 1947, No. 28143. [Class 82(ii)] In a sink-and-float process of separating materials of different specific gravities, the separated sink material is subjected to treatment in a plurality of streams of the same heavy liquid as is used as the separating medium, such streams being set up by air lift in columns communicating with the body of sink-and-float medium but operating independently of the sink-andfloat treatment, the stream in one column separating a relatively less heavy fraction from the sink material whilst that in another column operates on the heaviest fraction to elevate it to discharge, the flow set up by the air lift in each column not interfering substantially with the flow set up in the other or others. Sinks from a separating vessel 1 pass to an air lift column 3 for the middlings which pass through a discharge spout 4 on to a screen 5 whence liquid returns through a tube 7 to the bottom of the column 3. The heaviest fraction passes through a duct 11 to an air lift column 12 and is discharged through a spout 13 on to a screen 14 from which liquid returns through a tube 16 to the bottom of the column 12. Specification 465,126 is referred to.
Patent GB-424553-A (GB)
Title: Improvements in or relating to methods of and means for aerating cyanide solutions
IPC: C22B11/08
Filed: 1934-10-02
Abstract: 424,553. Aerating cynanide solutions. KNAPP, E. A., and BATES, W. R., 813, Salisbury House, London Wall, London. Oct. 2, 1934, No. 28204. [Class 82 (i)] A process for aerating cyanide solutions comprises passing the solution into or through a chamber containing a series of balls or other relatively small elements which are caused to partake of a pulsating or oscillatory movement under the influence of an aerating medium intermittently supplied to the chamber under pressure. The solution enters a chamber a at d, passes round the ends of partitions b therein and leaves at g. Rubber balls h, or short lengths of rubber tube or cylinders, are caused to oscillate between screens k, l by means of compressed air delivered through pipes m from a pump n. A valve p serves to deliver the air in turn to the pipes m so that such air is delivered to the solution in short, sharp puffs. The process and apparatus may be applied to continuous cyanide processes for the treatment of ores.
Patent GB-866874-A (GB)
Title: Improvements in control mechanisms for hydraulic lifting mechanisms in tipping vehicles
IPC: F15B11/08
Filed: 1959-08-18
Abstract: 866,874. Hydraulic apparatus. TATRA NARODNI PODNIK. Aug. 18, 1959 [Aug. 21, 1958], No. 28252/59. Class 69 (2). . A control mechanism for an hydraulic lifting mechanism in a tipping vehicle comprises a slide-valve housing 7 which has an inlet port 14 for connection to a source 36 of liquid pressure, a delivery port 37 for connection to the lifting mechanism 19, 20, and a return port 15, a slide-valve 9 which is movable by manualactuating means 1 to a first position in which the three ports are in communication with one another, a second position in which the delivery port is closed, and a third position in which the return port is closed and the inlet port is placed in communication with the delivery port, and a member 12 slidable in the housing and spring- loaded to move the slide-valve from the third to the second position upon release of the actuating means and restrained from moving with the slide valve when the latter moves from the second position to the first position. The actuating means consists of a lever 1 on a rod 47 which can be axially and rotatably moved according to a guide 46 in a casing 2. Axial movement of the rod caused by moving the lever from a position O to position I actuates a switch 4 to start a pump 36 connected to the inlet port 14 of the slide-valve housing 7. Rotational movement of the rod when the lever is moved to positions II and III acts through a linkage 51, 5, 6, 8 to axially move the slide-valve in the housing. In position I, with the ports interconnected, the load is lowered at a rate determined by the flow of liquid through throttle passages 30, 30<SP>1</SP> in the slide-valve as it passes from the delivery port 37 to the return port 15. With the lever in position II, the delivery port 37 is closed to maintain the load in a desired position, the output from the pump being by-passed from the inlet port direct to the return port, and in position III the return port 15 is closed and the ports 14, 37 interconnected to raise the load. Movement of the slide-valve from position III to position II to discontinue the raising of the load and to retain it in a desired position is automatically effected upon release of the lever 1 by the spring- loaded member 12, further movement of the member 12 when the slide valve is moved to position I being restrained by a shoulder 10<SP>1</SP>. If the lever 1 is retained in position III when the rams of the lifting mechanism reach the end of their stroke, the slide-valve is automatically moved from the raise position III to the holding position II, in which the port 37 is closed, by abutment of the rams, which raise and tilt the load, against stops 24, 25 carried by a pivoted member 23 connected by a lostmotion connection 29 to the lever 6 of the slide-valve. In another embodiment, a single ram is provided having three stops to permit the ram to be used in three directions.
Patent GB-410130-A (GB)
Title: Improvements in magazines or hoppers for relatively flat articles
IPC: A21C15/00
Filed: 1932-10-11
Abstract: 410,130. Endless - belt conveyers; shoots. VICARS, Ltd., T. & T., and TUNSTALL, H. H., Earlestown, Newton-le- Willows, Lancashire. Oct. 11, 1932, No. 28263. [Class 78 (i).] A magazine or hopper for biscuits or relatively flat articles consists of a vertical tubular portion 12 and an upper slightly inclined or horizontal channel portion 10 merging therewith by which the magazine can be readily replenished. The bottom of the channel may be formed by an endless conveyer band 15 driven by a pulley 16 at the bend between the upper and lower parts of the magazine. The front side of the magazine is in the form of a plate 18 extending round the bend, and preferably slotted to allow the initial filling to be performed.
Patent GB-973761-A (GB)
Title: Improvements in self-anchored suspension bridges
IPC: E01D11/02
Filed: 1962-07-23
Abstract: 973,761. Suspension bridges. J. A. POSFORD, R. PARRY, P. W. ROWLEY, and J. F. C. SWANSBOURNE, [trading as POSFORD, PARRY & PARTNERS]. July 23, 1963 [July 23, 1962], No. 28288/62. Heading E1G. In a self-anchored suspension bridge the deck 10 is formed separately from the stiffening structure 1, the anchorages 12 for the suspension cables 3 transmitting a horizontal component of the thrust directly to the deck and not to the stiffening structure. The hangers 2 pass through longitudinal slots in the deck to the stiffening structure 1 which may have its upper portion as a welded unit with an anti-friction membrane interposed between the structure and the deck to permit relative longitudinal movement. The cables 3 are secured to an anchorage 12, having limited longitudinal movement by virtue of links 13, 14 and connected by a knuckle joint 17 to the deck 10 only.
Patent GB-1352579-A (GB)
Title: Gas separation apparatus having block copolymer membrane for separating polar contaminatns from gaseous mixtures
IPC: B01D71/50
Filed: 1971-06-16
Abstract: 1352579 Gas separation membrane GENERAL ELECTRIC CO 16 June 1971 [2 Nov 1970] 28317/71 Heading B1L A gas separation diffusion membrane is made of a linear block polymer comprising at least one poly(oxyethylene) block and a plurality of another linear polymers blocks with the polyethylene content is from 30 to 95 percent by weight of the other polymer.
Patent GB-722076-A (GB)
Title: Improvements in or relating to holders for articles of food
IPC: A47B77/04
Filed: 1951-11-12
Abstract: 722,076. Counters. GARDINER, W. T., and GARDINER, C. H. Nov. 11, 1952, [Nov. 12, 1951], No. 28427/52. Divided out of 722,026 [Group XI]. Class 116. [Also in Group XI] A holder for pies or other articles of food is pivotally mounted near the top of an article of catering equipment so that its open top is normally closed by the top of the item of catering equipment, and food can be removed by tilting the holder so that its interior is accessible through the open top. A pie holder 24 is pivotally mounted near the top of a hot cupboard, and its top is closed by the top of the hot cupboard. The holder 24 is heated by conduction through the recessed wall 25 of a dry heat crockery storage compartment, or the wall 25 may be perforated to allow hot air to circulate round the holder, which is' substantially rectangular in cross section. The holder is pivoted about a point near its bottom about one-third of the distance in from its outer edge. The size of other items in the hot cupboard is not reduced since the holder is long, and of small cross section. Specifications 666,050, 681,177, 722,026, [all in Group VI], and 722,077 are referred to.
Patent GB-743822-A (GB)
Title: Infusion apparatus particularly for express coffee machines
IPC: A47J31/24
Filed: 1953-10-15
Abstract: 743,822. Coffee machines. LA CARIMALI SOC. PER AZIONI. Oct. 15, 1953 [Nov. 28, 1952], No. 28475/53. Class 129. [Also in Group XXVIII] In a coffee machine of the type in which the hot water is drawn from a boiler and forced through the coffee powder by a spring-loaded piston, the piston has an axial bore and slides over the water inlet conduit to act as a valve. The piston 3 slides within cylinder 2, and is operated by piston rod 11 secured to a block 12 sliding on pillar 13 against the pressure of a spring 15 and lifted by a cam 18 and lever 16. A fixed conduit 4 having an inlet connected via tube 6 to the boiler, and having radial outlet ports 7, passes through the centre of the piston 3. Packing 10 is arranged to cover the outlet ports unless the piston is at the top of its stroke. A conventional coffee filter 23 is a bayonet fit beneath the cylinder.