baber/WOPTO huggingface dataset:
Patent GB-730609-A (GB)
Title: An improved method of and apparatus for carrying out mixing, precipitating and additive reactions
Inventor: SCHUMANN EWALD
IPC: C02F1/52
Filed: 1952-11-05
Abstract: 730,609. Softening water. STEINMULLER GES., L. & C., and BUCHER, E., [trading. as MULLER, NACHFOLGER E. BUCHER & CO., P.]. Nov. 5, 1952, No. 27906/52. Class 46. Precipitating and additive reactions in the softening of water are effected in a cylindrical vessel a into which crude water and solution (e.g. lime solution) are introduced by pipes c<SP>1</SP> and c<SP>2</SP> respectively, arranged concentrically and directed to the bottom of the vessel. The mixed liquids thereafter traverse the vessel in an upward direction through a bed of contact grains maintained in suspension, the diameters of the inlet pipes in proportion to the diameter of the vessel being so dimensioned that the time in which the liquid reaction components flow past the self-generating contact grains remains independent of changes in the load. The water leaves by a funnel h located in a widened portion g of the cylinder. Maximum and minimum levels of the top of the contact may be observed at d. Tangential inlets b are provided for introduction of crude water to resuspend the contact bed after a period of inoperation.
Patent GB-502576-A (GB)
Title: Improvements in or relating to electric furnaces
IPC: F27D11/02
Filed: 1937-10-14
Abstract: 502,576. Retort furnaces. GARDNER, D. Oct. 14, 1937, No. 27954. [Class 51 (ii)] [Also in Group XI] Charges, conveying ; discharging.-In an electric furnace for chemical, distilling, metallurgical, or heat treatment operations, the heat treatment chamber is a tube 1 with a perforated wall enclosing a screw 21 and surrounded by a jacket 4, either the screw or the tube or both being rotatable for propelling the charge through the tube. The tube may have an internal thread and in this case the screw may be replaced by a cylindrical rod. The interior of the jacket is connected to a condenser 8 which may be heated. The tube is vertical, inclined, or horizontal, and the screw is of uniform or varying pitch. The tube and screw may be made of carbon, petroleum cake, carborundum, tungsten, molybdenum or tantalum, or of carbides, borides or nitrides of zirconium, tungsten, tantalum, thorium, boron or titanium. The tube may be made of zirconia, thoria, beryllia, yttria or alumina. A helical vane 23 on the screw 21 distributes the treated material on to a cone 24 from which it falls on to a table 25.
Patent GB-947605-A (GB)
Title: Improved gas turbine engine
IPC: F02C7/18
Filed: 1961-03-28
Abstract: 947,605. Cooling gas turbines. FORD MOTOR CO. Ltd. March 28, 1961 [April 4, 1960], No. 27982/62. Divided out of 947,604. Heading F1G. In a cooling system for a gas turbine engine as described and claimed in Specification 947,604, which engine includes a low pressure turbine 44 and a power turbine 41 mounted coaxially therewith, cooling air is taken from a duct 17 upstream of an intercooler 15 lying between low and high pressure compressors. A part of the cooling air passes through a bore 850 in a shaft 51 carrying the turbine 44 and passes into the space between the adjacent faces of the turbines 44, 41 to join the working fluid stream. The remainder of the cooling air is led to a space 831 between a cooling air seal 832 and one face of the wheel 52 of the turbine 44. The upstream face of the turbine 41 is cooled by air which has passed through the high pressure compressor and a cooler 863. The low pressure turbine shaft bearing 72 is mounted in a housing through which the conduit leading air to the space 831 passes, thereby cooling the housing.
Patent GB-337897-A (GB)
Title: Improvements relating to direction indicators for motor and like vehicles
IPC: B60Q1/38
Filed: 1929-09-14
Abstract: 337,897. Higginson, J. Sept. 14, 1929. Road-traffic signals on vehicles. - Direction signals h, i on road-vehicles are selectively actuated by turning the handle n of an electric switch to left or right, thus bringing a spring contact p or q against contact rings d, e, f secured to the steering column a, the handle n being reset by the return movement of the steering-wheel. The spindle m of the switch n is mounted in a ring j secured to the boss of the steering-wheel, so that as the latter is turned, further movement of the handle n is limited by stops u, t, while the return movement of the steering-wheel causes the engaging spring contact p or q to roll on the contact rings and restore the handle n to its neutral position. A modified open form of the spring p, q is described.
Patent GB-158399-A (GB)
Title: Improvements in apparatus for the transport of material in bulk
IPC: B60P7/13
Filed: 1919-11-12
Abstract: 158,399. Fry, A. G. Nov. 12, 1919. Floors; vehicles with removable bodies. - For transporting goods by rail and road without breaking bulk, boxes fitted with rollers are run on to a truck fitted with a second system of rollers at right angles to the rollers on the boxes. In the illustrated form a number of these boxes, each preferably forming the load for a single road vehicle, are positioned on a single railway truck. The long rollers c on the boxes serve to move the latter in one direction on the truck, while rollers b on the truck serve to move them in a direction at right angles to the former, thus enabling all the boxes to be positioned laterally and longitudinally on the truck. Hinged turn-up brackets f on the truck engage the box-shaped ends of sliding bolts g to lock the boxes in position. Sliding bolts lock the bolts g in the engaging position. The boxes are fitted with end doors and can be discharged, when desirable, at either side of the truck by first releasing the corresponding bolts g and brackets f and then opening latches to release the doors.
Patent GB-483320-A (GB)
Title: Improvements in or relating to superheterodyne-receivers
IPC: B31F1/22
Filed: 1936-10-16
Abstract: 483,320. Wireless receiving-apparatus. SCHAUB, G. VON. Oct. 16, 1936, No. 28160. Convention date, Oct 17, 1935. [Class 40 (v)] A superheterodyne receiver with two beating stages in which tuning is effected only by varying the frequency of the first oscillator is arrangedfor remote control by providing a separate housing for the first beating stage and the associated tuning circuit. The Figure shows the first beating stage V1 with an aperiodic input L1. Instead of a variable condenser C1 a variable inductance may be employed and tuning may be effected by switching in fixed capacities. The receiver may be built into a cabinet with the first beating stage at the top which may be removable to a remote point using a coupling cable with plug and socket connections. Volume or band width may be controlled from the remote point.
Patent GB-968659-A (GB)
Title: A railway rail and fastening arrangement
Inventor: ASTLEY HAROLD TREVOR
IPC: E01B9/30
Filed: 1963-07-16
Abstract: 968,659. Fastening railway rails. LOCKSPIKE Ltd. July 16, 1963, No. 28195/63. Heading E1G. A flange footed rail 1 is secured to a concrete sleeper 3 by a fastening member of the type described in Specification 861,473, the first portion 7 of the fastening member lying in a horizontal passage 15, formed in a cast anchoring member 13 having at least one projection 12 incorporated in the sleeper 3 during casting, the third portion 8 of the fastening member bearing on the rail flange 1 or an intermediate member 5 and the fifth portion 9 bearing on an unyielding surface 14. The surface 14 is preferably formed on the anchoring member 13 which may have a nylon bush 15a. The rail may be insulated by resting on a rubber pad 2 and by the imposition of an insulation block 5 between the flange and the member 13.
Patent GB-267043-A (GB)
Title: Improvements in combined presses and stretchers for garments
IPC: A47G25/72
Filed: 1926-11-10
Abstract: 267,043. Burnham, J. S. Nov. 10, 1926. No Patent granted (Sealing fee not paid). Trouser and other garment presses. - A trouser press and stretcher comprises a number of wooden hinged leaves A, B between which the longitudinal creases of the trousers are gripped by means of clamps G, the folds passing round a member C connected to the leaves by a spring D and a screw adjustment J by means of which the trousers are stretched transversely of the legs. A coat hanger may be attached to the spring D. In a modification, the spring D may be replaced by a second screw adjustment.
Patent GB-646722-A (GB)
Title: Improvements in web let-off motions
IPC: D03D49/06
Filed: 1947-10-22
Abstract: 646,722. Variable speed control. BRITISH CELANESE, Ltd. Oct. 22, 1947, No. 28255. Convention date, Oct. 22, 1946. [Class 80(ii)] [Also in Groups VIII and XVI] A variable speed control for a warp beam comprises a friction disc 43 driven by two driving wheels 41 which are moved towards the centre of the disc by a screwed shaft 96 driven by the rotation of the beam. The disc 43 mounted on a shaft 45, drives the beam through a train of gears. Fig. 1 shows two similar control mechanisms mounted at the ends of two warp beams. Shafts 29, 35 carrying the driving wheels are rotated by chains 33, 27, 17, sprockets 34, 32, 28, 26, 16, and gears 21 from a cam shaft 14. The drive from the shaft! 45 to the shaft 71 of the beam, Fig. 4, comprises in sequence, a worm 53, a worm wheel 54 on a shaft 56, pinions 57, 58, 66, a shaft 67, worm 68, worm wheel 69 and the shaft 71. The drive for the shaft 96 comprises a gearwheel 74, meshing with a gear wheel 75, a worm 77, a worm wheel 78 on a shaft 81 pinions 82, 83, pinion 91 and chain and sprocket drive 93, 94, 95. A clutch 98, manual release 99 and a handle 101 are provided for hand rotation of the shaft 96. The rate of letoff for a given rate of rotation of the cam shaft can be altered by changing one of the gear wheels.
Patent GB-245419-A (GB)
Title: Improvements in or relating to change speed mechanism
IPC: F16H29/22
Filed: 1925-11-10
Abstract: 245,419. Manet, W., Claude, R., and Claude, A. Dec. 30, 1924, [Convention date]. Variable-speed ratchet gearing comprises a driving eccentric B and means comprising a spring by which a shaft G is driven at a speed automatically variable with the load. The eccentric strap C is connected at one point E by the spring H to a fixed point I and at an opposite point D is connected by a link J to an arm O carrying a pawl N driving a ratchet wheel F fast on the shaft G. This variable transmission device is preferably used threefold in different phase. According to the Specification as open to inspection under Sect. 91 (3) (a) a crank may replace the eccentric. This subject-matter does not appear in the Specification as accepted.
Patent GB-189435-A (GB)
Title: Improvements relating to driving belts
IPC: F16G1/26
Filed: 1922-10-18
Abstract: 189,435. Getting, G., and Jonas, A. Nov. 22, 1921, [Convention date]. Belts are built up of elements A<1>, A<2>, &c., each consisting of strips of leather on edge, the elements being connected by interengaging lateral projections 2 to prevent relative longitudinal motion and also by longitudinal bands 4 or transverse bands 5. As shown in Figs. 1 or 3, the parts of each element are separately secured together by the use of rivets 1, the lateral projections 2 fitting without clearance, and long.i. tudinal leather strips 4, Fig. 1, arranged in the body of the belt being secured by the rivets 1, or transverse leather strips 5, Fig. 3, being turned in and similarly secured. The projections 2 may be smaller, so as to provide clearance in the longitudinal direction, or as shown in Fig. 5 may be replaced by large heads 1<1> and bushes 1<11> on the rivets 1, the strips 4 being gripped therebetween. The rivet heads 1<1> may be conical and fit in metal caps in conical recesses in the opposing sides of the belt elements.
Patent GB-908114-A (GB)
Title: Improvements in hydraulic valves
Inventor: WILSON JOHN JAMES
IPC: E21D15/51
Filed: 1957-09-09
Abstract: 908,114. Valves. DOWTY MINING EQUIPMENT Ltd. Dec. 9, 1958 [Sept. 9, 1957], No. 28422/57. Class 135. A fluid pressure release valve comprises a lift valve closure member co-operating on one side thereof with a valve seating, the other side of the closure member being acted upon by a piston in a bore coaxial with the seat opening and having on its end remote from the closure member an area subject to the pressure of the fluid to be released which exceeds the area of the seat opening so that the closure member is urged against its seating by a relatively small counterbalancing force, and mechanical operating means operable to move the piston against the action of the counterbalancing force to enable the closure member to lift. As shown, the high-pressure zone in an hydraulic pit prop comprising relatively movable prop portions is situated beneath a head 1 of one portion and this pressure is released through the opening 12 of a valve seat 11 past a ball valve 14. The other side of the ball is contacted by a piston 5 having on its upper side an area slightly greater than that of the seat opening 12 and which is subject to pressure communicated from beneath the head 1 through a passage 16. An operating wire cable 7 is operable to raise the piston against the fluid pressure acting thereon to enable the ball valve 14 to open and release the pressure beneath the head 1.
Patent GB-813314-A (GB)
Title: Synthesis of aryl and amino-substituted propanediol monoalkyl ethers and intermediates obtained therein
Filed: 1955-10-06
Abstract: The invention comprises b -arylpropionic acid derivatives of the general formula: <FORM:0813314/IV (b)/1> (wherein Ar represents an aryl group, R an alkyl group of 1-4 carbon atoms and M an alkoxy group of 1-4 carbon atoms or the group -NH.NH2), and a process (in which they are intermediates) for preparing 1-aryl-2-amino-3-alkoxypropan-1-ols of the general formula: <FORM:0813314/IV (b)/2> by reacting an aromatic aldehyde ArCHO, in the presence of zinc and an anhydrous inert solvent at 0-100 DEG  C., with an alkyl a -halo-b -alkoxypropionate of the general formula: RO-CH2-CHX-COOR1 (wherein X represents a halogen atom and R1 an alkyl group of 1-4 carbon atoms which may be the same as or different from R) to obtain an alkyl a  - alkoxymethyl - a  - hydroxy - b  - arylpropionate (I, M=alkoxy), heating this with a hydrazine hydrate solution to form the corresponding hydrazide (I, M= -NH.NH2), treating this with nitrous acid at -5 DEG  to 5 DEG  C. to form a 5-aryl-4-alkoxymethyl-2-oxazolidone of the general formula: <FORM:0813314/IV (b)/3> and finally hydrolysing this with an acid or base.  In an example (in which all the products have the erythro configuration) Ar is phenyl, R and R1 are methyl and X is Br, the solvent used in the first step is a mixture of benzene and ether, the reaction with hydrazine hydrate is carried out in ethanol solution, the final hydrolysis is effected with 3 per cent aqueous-alcoholic baryta solution, and the product is isolated as its hydrochloride. Hydrolysis by boiling with dilute or concentrated hydrochloric acid is also referred to.
Patent GB-335729-A (GB)
Title: Improvements in or relating to motor vehicles for alternative road or rail transport
IPC: B60F1/02
Filed: 1929-09-20
Abstract: 335,729. Meek, P., and Clayton, R. F. Sept. 20, 1929. Rail or road vehicles.-In motor vehicles for alternative road or rail transpart of the type in which the axles are provided with flanged rail wheels and also with detachable road wheels, each road wheel j is applied to and removed from its axle b by a swinging arm n pivoted about an inclined axis e on the main frame, the arm n being swung downwardly into such a position that the road wheel may be secured to it and then swung upwardly to hold the wheels out of action. Figs. 1 and 2 show the road wheel secured in an operative position on the outside of the rail wheel a, the arm n in Fig. 2 being shown attached to the road wheel, while in Fig. 1 it is shown swung clear. The rail wheel a carries driving projections c' and is formed with an axial boss a<2> which supports a clamping-member f. The outer end of the boss a<2> is screwed to carry a nut g with operating-arms g<1>, to clamp the wheels together. The road-wheel rim is carried by a disc h having a central opening to pass over the nut g and clamping-member f, and radial openings h<2>, h<3> to permit the passage of the arms of the clamping- member f and the operating-arms g' when the wheel is removed from or placed in position. To prevent slacking back of the nut g, locking- screws secure the ends of the operating-arms g<1> to the road wheel. When the nut g is screwed up a sliding key locks the clamping-member f to the boss a<2> of the road wheel. When the road wheel is to be removed and the supporting member n is swung down into position opposite to it, pivoted arms s on the wheel are released and swung outwardly to connect the two to one another.
Patent GB-1256420-A (GB)
Title: Electro-optical character display or photocomposing devices
IPC: G02F1/31
Filed: 1969-06-05
Abstract: 1,256,420. Photographic type-composing. INTERNATIONAL BUSINESS MACHINES CORP. 5 June, 1969 [18 June, 1968], No. 28511/69. Heading B6W. An electro-optic photocomposing machine comprises a light source producing a collimated and polarized beam 12, a vertical electro-optic deflection 110, a horizontal deflector 114, a stationary character matrix plate 13, a vertical deflector 117, a horizontal deflector 118, and a stationary film 14. The deflectors 110, 114 may each comprise three birefringent crystals, each twice as thick as the preceding one and each having at its input side an electro-optic device comprising an electro-optic crystal between a pair of transparent electrodes, which device rotates the plane of polarization 90 degrees when a potential is applied across the electrodes. The beam may thus be deflected up to seven steps vertically and horizontally so as to pass through any of 64 selected characters. The deflectors 117, 118 may comprise seven birefringent crystals, giving a theoretical grid on the film of 128 x 128, which is reduced in that the reference lines for zero deflection must be displaced by seven positions, since the deflectors 117, 118 cannot reverse any deflection by the deflectors 110, 114. The driving mechanism for closing the switches for the electrodes of the deflectors 110, 114 are controlled by character selection registers 119, 120, whereas the driving mechanism for the deflectors 117, 118 is controlled by both the registers 119, 120 and character positioning registers 123, 124, the outputs of which are added or subtracted by devices 125, 126 according as the direction of deflection by the deflectors 117, 118 is opposite to or the same as that by the deflectors 110, 114. In the case of subtraction, a correction factor of seven vertical and seven horizontal steps is inserted.
Patent GB-272762-A (GB)
Title: Improvements in or relating to piston rings
IPC: F16J9/10
Filed: 1926-11-12
Abstract: 272,762. Brawner, G. H., and Manley, L. M. Nov. 12, 1926. Piston packing. - A piston packing ring comprises a number of links pivoted together to form a chain and having projections 31 which are engaged by an expander 12. The latter has a greater radius of curvature than the packing-ring groove and is made in halves pivoted together at 14. Lugs at the ends of the expander engage projections 31<1> on the links next to the end links 25, 26. The latter have no projections, but engage one another by a tongue and groove joint. In a modification the projections 31 are formed on the expander, but the end links 25, 26 have projections engaging the lugs at the ends of the expander. Each link, except the end links, is built up of two plates 18, Fig. 8, having recessed ends, the recesses of the links being arranged alternately externally and internally. The links are pivoted together by pins 22 and are secured by rivets 24.
Patent GB-965413-A (GB)
Title: Improvements in or relating to primers designed both for electrical and percussion initiation
IPC: F42C19/12
Filed: 1960-08-18
Abstract: 965,413. Primers. DYNAMIT NOBEL A.G. Aug. 18, 1960 [Aug. 22, 1959], No. 28684/60. Heading F3A. A primer, for cartridge, shell or mine fuzes, is optionally capable of electrical ignition, by direct or indirect conduction of an ignition current through the priming composition, or of mechanical ignition. In one embodiment, Fig. 4, an electrically and mechanically sensitive priming composition 1 is pressed into a polepiece 5 and insulated from an outer electrically conductive shell 3 by an insulating layer 4. A booster charge 2 is pressed on to the polepiece 5 and the priming composition 1 and is sealed off by a foil 8. An anvil 11 serves both as an abutment in the case of mechanical ignition and as one of the electrodes for electrical ignition. The other electrode is afforded by the polepiece 5, the priming composition being rendered electrically conducting by the admixture of graphite or other semi-conductive additive. Other embodiments disclose various arrangements of the above-mentioned parts and primers wherein two compositions are used, one being electrically sensitive and the other percussion sensitive. The latter may be housed in a conventional percussion cap. The insulating layer 4 may be provided by chemical coatings whose composition depend on the material of shell 3. For aluminium they may consist of anodically oxidized layers, for steel or zinc of lacquered phosphate and for other metals of stoving enamel.
Patent GB-650366-A (GB)
Title: Improvements in and relating to rayon spinning machines
IPC: D01D7/02
Filed: 1948-11-05
Abstract: 650,366. Rayon spinning machines. COURTAULDS, Ltd., ROSE, L., and WHYTE, E. J.. Nov. 5, 1948, No. 28771. [Class 120(ii)] A rayon spinning machine, in which a funnel 6 feeding the extruded filaments 7 to a rotating spinning box 8' is traversed by the action of a cam 1, (not shown in Fig. 2) is characterized in that (a) the cam is rounded off at the tip' 2 and the root 3 over angles of at least 10 degrees, (e.g. between 14 degrees and 30 degrees), (b) the edge 10 of the funnel feeding the filaments is undulating or indented, (c) the traverse stroke Y of the funnel is sufficiently shorter than the height X of the box to permit automatic spreading out of the accumulated filaments whereby a cake 9 having inside and outside surfaces which are substantially cylindrical and parallel is obtained. Specifications 468,662 and 631,857 are referred to.