baber/WOPTO huggingface dataset:
Patent GB-1309786-A (GB)
Title: Spindle boring apparatus
IPC: B23Q1/70
Filed: 1970-04-23
Abstract: 1309786 Fluid bearings LUDWIGSBURGER MASCHINENBAU GmbH 23 April 1970 [23 April 1969] 19649/70 Heading F2A [Also in Division B3] A cutting tool 26 mounted in a boring spindle has means to ensure disengagement from the surface being bored by supplying hydraulic fluid to a bearing 28 for the boring spindle so as to effect radial displacement of the spindle. The spindle 14 is supported in two hydrostatic bearing members 28, 28<SP>1</SP> which are fixed in the housing 10 and in which are formed four oil pockets, e.g. 52 spaced equidistantly around the bearing surface of the bearing members 28, 28<SP>1</SP>. Each oil pocket is connected via a throttle valve, e.g. 64 to an hydraulic system 58 so that equal pressure conditions occur in all the oil pockets thus holding the boring spindle in a central position. When the boring operation is completed the angular position of tool 26 is adjusted by a checking device (not shown) so that the tool 26 extends upwards (as in Fig. 1) and the oil pocket 52 which is substantially opposite the tool is opened to low pressure via a two way magnetic valve 70 so that the boring spindle is tilted downwards and the cutting tool released from the surface of the workpiece. In a modification, Fig. 3 (not shown), the spindle is provided with a feed channel (82) which opens out at the surface of the spindle on the same side as the cutting tool 26 and into one of the oil pockets, which one depending upon the angular position of the spindle, and the feed channel (82) is also permanently connected to the hydraulic pressure system 58 by means of an annular groove (90) arranged in an annular projection in the housing 10. Pressure applied via a 2 way magnetic valve (94) and the feed channel (82) will provide extra pressure in one of the oil pockets to remove the cutting tool from the work surface in any angular position.
Patent GB-462656-A (GB)
Title: Improvements relating to methods and apparatus for regulating gas pressures
IPC: F16N7/32
Filed: 1935-07-10
Abstract: 462,656. Pressure-regulating valves. PITTSBURGH EQUITABLE METER CO. July 10, 1935, No. 19699. Convention date, July 23, 1934. [Class 135] A pressure regulator adapted to keep the outlet pressure constant through a large range of flow has a valve member interposed between the inlet and outlet of a pressure responsive chamber for controlling the flow of gas through the inlet in response to the pressure in the chamber and has means for causing the gas from the inlet to flow around the valve member in close proximity thereto and so produce a non-confined hollow gas stream which subsequently merges without turbulence into a solid stream, said stream passing across the chamber to create an aspirating effect in said chamber. The valve member comprises a cup-like shell 21 enclosing a disc of steel 22 having an undercut groove 23 retained in place by punching the shell opposite the groove. A facing of " paraprene " is vulcanized to the disc, paraprone " being a synthetic rubber product produced by polymerization of divinyl and contains sufficient mineral filler to give it a density of about 75 to 80 by durometer best. A sleeve 30 detachably secured to or integral with the valve seat surrounds the valve member and is spaced sufficiently away from the valve member to provide an annular passage substantially in alignment with the outlet 13. A spring wire retainer 24 encircles a reduced part on the disc and is bent hairpin fashion to engage an aperture 25 in the lever 26. This lever is pivoted to the casing at 27 and has its longer limb pinned to a bracket 4 carried by an actuating diaphragm 3. The diaphragm is loaded by a spring 35 which is initially compressed to about twothirds its length. This spring may have the characteristic that the change in spring pressure throughout the movement of the pressure responsive element is within the limit of the outlet pressure boost of the regulator: To vary the aspirating effect an adjustable deflecting baffle may be rotatably mounted on the lever or casing. In a modification the regulator is loaded by a series of dead weights housed in a closed load container. In this case the container is made to confirm fairly closely to the configuration of the outer casing which has a small vent to atmosphere so producing a dashpot effect.
Patent GB-405962-A (GB)
Title: Improvements in and relating to closets
IPC: A47K11/03
Filed: 1932-07-12
Abstract: 405,962. Dry closets. JACKSON, E. L., 34, High Holborn, London, and CHRISTOPHER, S. A., 52, Meadway, High Barnet, Hertfordshire. July 12, 1932, No. 19721. [Class 26.] A closet, particularly a chemical closet, of the kind in which a receptacle for sewage is arranged within a casing provided with a seat adapted to be raised and preferably also with a lid has a shield below the seat extending round the receptacle and over the space between the walls of the receptacle and the walls of the casing, a downwardly extending flange being formed on the shield to engage frictionally with the walls of the casing to prevent accidental displacement of the shield. A receptacle 1 is arranged in a casing 2 having a hinged seat 9 and a hinged lid 12. A shield comprising a downwardly sloping portion 6 and a flange 7 entering the receptacle 1 extends round the receptacle and covers the space between the receptacle and the casing. The shield extends over the casing and is kept from accidental displacement by the frictional engagement of a downwardly extending flange 8 with the wall of the casing. On the rear side a recess is provided in the shield and the flange 8 is cut away to provide a clearance for the hinged connection between the seat and a batten 10. The casing has a tubulure 3 connected to a draught or ventilating pipe and holes 4 preferably provided with flap valves or shutters are provided adjacent the base of the casing on the side remote from the tubulure. A space may be left between the shield and the walls of the receptacle so that the air drawn in through the holes 4 may pass over the receptacle.
Patent GB-222093-A (GB)
Title: Process of purifying oils and fats in vacuo by means of steam or the like
IPC: C11B3/14
Filed: 1924-08-20
Abstract: 222,093. Metallbank und Metallurgische Ges. Akt.-Ges., and Gensecke, W. Sept. 18, 1923, [Convention date]. Oils and fats, purifying.-In the purification of oils and fats in vacuo by steam or the like, the degree of exhaustion in the first treatment chamber is increased by a steam injector or other compression device, e.g. up to or above that in the subsequent apparatus. In the arrangement shown a series of say 2 treatment chambers a, b is exhausted by an injection condenser h, steam is admitted to the oil in chamber a by a coil u, and the exhaustion of vessel a is increased by a steaminjector n. The steam and vapours from vessel a pass into a separator m, and are then carried with the exhaust steam of the injector through a pipe o to the next treatment chamber b, and thence through separator f and the evacuating device h. The chambers a, b may be replaced bv towers down which the oil flows with or against the steam. The Specification as open to inspection under Sect. 91 (3) (a) states also that the chamber b may be omitted and the steam &c. passed direct to the separator f and device, by a pipe v. This subject-matter does not appear in the Specification as accepted.
Patent GB-1013859-A (GB)
Title: Improvements in or relating to circuit arrangements for transistorised television receivers
IPC: H04N5/44
Filed: 1964-05-12
Abstract: 1,013,859. Transistor amplifiers; diplex radio signalling. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. May 12, 1964 [May 15, 1963], No. 19742/64. Headings H3T and H4L. The video and sound IF signals in a television receiver are amplified by a transistor operating as a common collector stage for the video and a common emitter stage for the sound IF, the outputs being then combined and applied to a common emitter stage. The diode detector 1 feeds the video signal and the 5À5 Mc/s. intercarries sound signal to an amplifier 4. The amplified video signal at the emitter and the amplified IF signal at the collector are fed to the base of a record stage 8, the series tuned circuit 6 preventing negative feedback at IF frequencies and the tuned circuit 10 preventing the IF frequencies being by-passed to earth. The amplified video signal at the collector of 8 is applied to the cathode-ray tube and the IF signal is extracted by a series tuned circuit 13, the series circuit also serving to by-pass the IF signal from the cathode-ray tube. Negative feedback provided by the emitter resistor 11 reduces interaction products. In Fig. 2 (not shown) the collector of transistor 4 is coupled to the base of transistor 8 through a single or double tuned IF transformer and the IF signal is extracted by a tuned transformer connected between the collector of transistor 8 and the cathode of the cathode-ray tube.
Patent GB-1194126-A (GB)
Title: Apparatus For and Method Of Mixing Fluids
IPC: B01F5/06
Filed: 1968-04-25
Abstract: 1,194,126. Fluid mixing device; removal of solvent from polymers. E. I. DU PONT DE NEMOURS & CO. 25 April, 1968 [28 April, 1967 (2)], No. 19749/68. Headings B1B, B1C. [Also in Division C3] A fluid mixing device, see Fig. 1, comprises a stack of plates 10-24 so constructed and arranged as to form sets of chambers 27, 28 having orifices opening into a mixing zone 31, the orifices of chambers 27 being so arranged as to direct one fluid in the form of tubular sheaths along the length of the mixing zone and the orifices of chambers 28 being so arranged as to direct another fluid in the form of sheets towards the centre of the mixing zone so as to intersect the tubular sheaths of the first fluid. The fluids to be mixed may be supplied to the chambers 27, 28 via conduits 25, 26 formed by apertures in the plates. A third fluid may be introduced into the mixing zone from chamber 33 and the fluid mixture may be made turbulent by passage through a nozzle 32. The mixing device may be used for forming a mixture of solvent, elastomer, steam, and water, which is fed to a stripping tube 180, see Fig. 4, provided with a diffuser 210 and water supply ring 200 and leading into a flash chamber 190, where an initial separation of solvent and steam from elastomer occurs. The elastomer in the form of a solvent-swollen crumb is then passed to kettles 220, 230 where further solvent is removed by sparging a suspension of the crumb in water with steam.
Patent GB-654710-A (GB)
Title: Improvements in and relating to dynamoelectric machines and slot wedge members therefor
IPC: H02K3/487
Filed: 1948-07-23
Abstract: 654,710. Slot-wedges for dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd. July 23, 1948, No. 19761. Convention date, July 25, 1947. [Class 35] [Also in Group XXXVI] Insulating slot wedges 9 of U-shaped cross - section are joined in groups by end parts 10 which carry connectors 12 (see Group XXXVI), for joining the winding ends and anchoring the external leads. Specifications 534,158 and 654,712 are referred to.
Patent GB-274657-A (GB)
Title: Improvements in fastenings
IPC: E05C3/04
Filed: 1926-08-11
Abstract: 274,657. Edwards, J. H. Aug. 11, 1926. Sash and door fastenings, pivoted-arm type. -The arm e consists of an integral housing for the pivot pin d and a helical spring l attached to the pin d and the knob m, which engages a recess n in the catch h. The pin d passes through a lower short slot j and an upper long slot k, while the positions of the slots j, k may be ,reversed. The housing may be rectangular or cylindrical. The catch h is formed on a plate f which for casement windows is formed with a handle r, Fig. 4. Where economy of space is desired, a flattened spring, Fig. 8, is employed. The fastening may also be used for gates boxes, &c.
Patent GB-218512-A (GB)
Title: Improvements in and relating to the carbonisation of bituminous coal and like material
IPC: C10J3/00
Filed: 1923-08-02
Abstract: 218,512. Humphreys & Glasgow, Ltd., (Rusby, J. M.). Aug. 2, 1923. Coking processes.-Bituminous coal is coked by passing a heated mixture of coal gas and water-gas through the charge in a chamber 4, and the gas is withdrawn by a fan 19 and passed through hot coke in a chamber 3 and down through a re-heater 2 from which it is returned by pipes 53, 9 to the coking chamber. The coke from chamber 4 is delivered through a valve 5 into the coke chamber 3 into which steam is passed by a pipe 29 to generate water gas. The gas generated is discharged by pipes 23, 22 to purifying apparatus. A valve 25 may be operated to close pipe 18 so that only gas which has been purified is circulated from a pipe 21 through the coke cooler and heater. The stoves 2 are heated by burning gases from a producer 1, but the process may be carried out without the use of such stoves by introducing air at an inlet 28 whereby a small quantity of the circulating gas will be burned to supply heat for the carbonizing process. The air supplies to the stoves or to the inlet 28 may be automatically controlled by a pyrometer situated at about the point 9.
Patent GB-163727-A (GB)
Title: Improvements in electrical resistance elements
IPC: H01C1/02
Filed: 1919-08-13
Abstract: 163,727. Travis, W., and Watson & Co., Ltd., T. H. Aug. 13, 1919. Resistance furnaces.-A resistance is pro. tected against oxidation by a casing consisting of bonded and fired silicon carbide. The core may consist of a series of discs, plates, rings, &c., or powder or granules, of amorphous carbon or carbonaceous material. It may be placed in a mould and a mixture of powdered or granular carborundum and clay rammed around it. Heat may be then applied externally, or electrio current passed through the resistance to form it into a solid mass. The mixture may alternately be applied as a paste, or may be separately moulded to form the casing. Heat may be radiated from the internal surfaces of a hollow resistance. The resistance may be embedded in the hearth or wall of a furnace for melting metals, glass, etc.; other resistance may be arranged above the charge. Furnaces for tempering, annealing, or reheating may also be heated by such resistances. According to the Provisional Specification, the casing may also be composed of fused alumina or other material.
Patent GB-455347-A (GB)
Title: Improvements in or relating to devices for delivering measured quantities of liquids
IPC: G01F11/32
Filed: 1935-02-25
Abstract: 455,347. Delivering measured quantities of liquids. RANSOM, R., 29, Clive Road, Colliers Wood, London, and BERWICK, A. G., Watts Works, Fair Green, Upper Mitcham, Surrey. Feb. 25, 1935, No. 19882/36. Divided out of 455,270, [Group XXIX]. [Class 106 (v)] The measuring chamber of a device for delivering measured quantities of liquid comprises a glass wall 2 which is surrounded by an apertured metal wall 5 and is secured between a base member 24 and a cup-shaped housing element 3 having a bottom aperture 9. A valve stem 12 slidable in a housing element 4 secured to the member 24 is normally held with a flange 23 engaging the member 24 by a spring or a rubber sleeve 34 as described in Specification 455,270. The housing element 3 is recessed to receive a rubber sleeve 7 formed with an internal rim 8 as described in Specification 455,269, so as to enable it to be attached to the mouth of an inverted bottle. An air passage in the element 3 leading to the measuring chamber is normally closed by a spring- pressed valve 22. A valve 10 is slidable in the stem 12 against the resistance of a spring 12. The lower portion of the stem 12 is formed with ports 26 communicating with a discharge passage 25. A sleeve 28 having lateral arms 31 is mounted on the stem 12 with provision for a small relative vertical movement. An annular recess 30 between the parts 28, 12 allows the collection of liquid trickling down the passage 25 as described in Specification 455,271, [Group XXVIII]. In operation, the arms 31, which are preferably covered with rubber sleeves, are pressed upwardly by the receptacle for the measured liquid. After the liquid caught in the recess 30 has been expelled the stem 12 moves upwardly and, as described in Specification 455,266, the valve 10 closes the aperture 9, a head 16 on the stem 12 opens the air valve 22, and the ports 26 rise above the base 24 to allow the liquid in the measuring chamber to be discharged. In a modification absorbent material such as felt is inserted in the recess 30.
Patent GB-836805-A (GB)
Title: Improved circuit arrangement for detecting faults in three-phase systems
IPC: G01R31/06
Filed: 1956-06-27
Abstract: 836,805. Faults testing. GENERAL ELECTRTC CO. June 27, 1956 [June 27, 1955,] No. 19904/56. Class 37. Three-phase star or delta inductively coupled windings are tested for faults by applying impulse waves of opposed (or similar) polarities simultaneously and respectively to a pair of distinct star (or delta) connected windings, and connecting a voltage indicator responsive to the time variation of an impulse to the star point or the free end of the third winding of a star connected system; or alternatively to the corresponding secondary windings inductively coupled to the impulsed primary windings; so as to respond to the algebraic sum of the impulses developed in the windings supplied therewith. In Fig. 5, a pair of impulse generators producing equal and oppositely poled impulses rising from zero to peak in 1.5 microsec. and falling to peak/2 in 40 microsec. are simultaneously triggered from a synchronizing network to energize primary windings 2, 3 of a 3-phase transformer, whose primary winding 4 is isolated from ground while the star point is grounded over a capacitance 12 shunted by resistance 10 across a cathode-ray oscillograph displaying the profile of the output impulse. In absence of winding faults, the latter as shown at 22 in Fig. 6, lies substantially on the zero axis due to the balance between input impulses and the excited windings, while a single shorted turn in either impulsed winding produces an output pulse as shown at 23. When the star point is inaccessible, the shunted oscillograph is connected between the free end of winding 4 and ground (Fig. 7, not shown), displaying no fault and single shorted turn output impulses as before (Fig. 8, not shown). The shunting impedances enable display sensitivity to be adjusted and may be removed if necessary, and the remaining winding 4 may be tested similarly by impulsing it together with widing 2 or 3. In testing delta connected transformers (Fig. 11), a negative impulse is applied to the common end of windings 31, 33 and the junctions of windings 31, 32 and 32, 33 are grounded over equal impedances 47, while the junction of the delta secondary windings 311, 331 is grounded and the junctions of windings 31<SP>1</SP>, 321 and 321, 331 are connected to the oscillograph, which displays a zero trace 50 of the output impulse for no fault and a trace 51 for a one-turn short circuit in windings 31, 33 (Fig. 12). When the secondary is star connected (Fig. 13), equal impedances 52 are connected across the ends of windings 31<SP>1</SP>, 331, whose star point is grounded, and the oscillograph is connected between the junction of the impedances and ground; zero output impulse voltage 55 appearing across the oscillograph for no fault, and impulse voltage 56 appearing for a one-turn short circuit in windings 31<SP>1</SP>, 33<SP>1</SP> or 31, 33 (Fig. 14). Specification 627,999 is referred to.
Patent GB-1099738-A (GB)
Title: An apparatus for use in building a wall
IPC: E04G21/20
Filed: 1965-05-11
Abstract: 1,099,738. Brick-laying apparatus. P. A. PETERSEN. May 11, 1965 [May 12, 1964], No. 19938/65. Heading E1S. Mortar for brick-laying is laid on a course of bricks 2 already laid by a box 29 open at the bottom and slid along the course on its leading wall a and rails 33 mounted on the rear wall c which has a horizontally rearwardly extending flange d spaced a distance from the course 2 slightly greater than the thickness of mortar joint required. The box is guided by its side walls b engaging the wall and vilbrated by a vibrator 32 on the wall c. Each brick 3 as it is laid by a machine moves along the rails 33 and pushes excess mortar along to form a vertical mortar joint.
Patent GB-1340740-A (GB)
Title: Process for the manufacture of hydroquinone
IPC: C07C27/00
Filed: 1971-06-10
Abstract: 1340740 Hydroquinone FUJI PHOTO FILM CO Ltd 10 June 1971 [18 June 1970] 19947/71 Heading C2C A process for the manufacture of hydroquinone comprises the steps of neutralizing the acid decomposition reaction products of paradiisopropyl benzene dihydroperoxide by addition thereto of an aqueous alkali metal hydroxide, carbonate or bicarbonate, removing the alkali metal salt of the acid therefrom, distilling off acetone therefrom, extracting the resulting aqueous residue with an aliphatic halogenated hydrocarbon and separating hydroquinone from the residual aqueous solution. Examples are furnished.
Patent GB-963000-A (GB)
Title: Improvements in bush cutters
IPC: A01G23/093
Filed: 1963-05-20
Abstract: 963,000. Sawing. E. R. GRAF ZU BENTHEIM. May 20, 1963, No. 19953/63. Heading B5L. Apparatus for cutting a bush or tree comprises a slide 12 which carries a circular cutter 11 at its forward end and is mounted on a projecting guide 14 adapted to be secured to a tractor. The cutter comprises a circular saw driven by a shaft 13 extending alongside the slide 12 which is movable along the guide 14 by an hydraulically-actuated cable device 23 against the force of springs 17 acting on a lever 18 pivotally mounted on the guide 14 and connected by a rod 22 to the slide. The guide has a bracket 16 pivotally connected to a support 15 adapted to be secured to the front or rear of the tractor, a carrier 24 controlling the pivotal movement of the guide about the support 15. The saw may be adjustable so that it cuts in a vertical, horizontal or intermediate plane, the shaft 13 being extensible or extensible and flexible to accommodate the movement of the saw. In operation, the tractor is positioned with the saw adjacent a tree or bush, the saw then being driven by the power take-off of the tractor and urged by the spring against the tree or bush. The saw is retracted against the springs by the cable device 23.