baber/WOPTO huggingface dataset:
Patent GB-310580-A (GB)
Title: Improvements in and relating to semi-rotary pumps
IPC: F04C9/00
Filed: 1928-02-08
Abstract: 310,580. Newman, Hender, & Co., Ltd., and Newman, C. P. Feb. S, 1928. Discharge and suction pipes for pumps; strainers; mounting and supporting.-To facilitate the fitting of a semi-rotary pump for use with a domestic hot water boiler, the dip pipe l is rotatably mounted on a pipe member f which is itself rotatably mounted on the pump a The pump inlet shown in Fig. 1 consists of a hollow plug extension d which is encircled by a sleeve g on the pipe member f which at the other end is encircled by a sleeve k to which the dip pipe l is secured; the pipe member may be curved. A strainer m, Fig. 2, which may include a foot valve, is clamped to the lower end of the dip pipe l by screwing up a nut o on a split conical flange n of the strainer fitting. The pump is secured to upturned parts of a metal plate driven into the brick course of the wall. Fig. 3, shows another form of rotatable mounting for the pipe member f which may also be secured 'in a manner similar to that of the discharge pipe, by a union ring q retaining a flange on a nut s screwed on the pipe.
Patent GB-100201-A (GB)
Title: Improved Apparatus for Testing Electric Circuits.
Inventor: PROKSCH FERDINAND
IPC: G01R1/20
Filed: 1916-03-17
Abstract: 100,201. Proksch, F. March 22, 1915, [Convention date]. Guards and protectors.-Lamps for testing electric circuits are held by a narrow insulating-base 1, which carries a flat perforated or netted detachable casing 12 protecting the lamps. In the form shown, the casing 12 is secured by arms 14 fitting in grooves in the side of the base and kinked at their outer ends 21 for greater security. At the points where they pass through holes in a crosspiece 16 within the casing, the arms are bent to provide fulcra. A bent spring 18 engaging the arms above their fulcra passes through the same holes in the cross-piece. Studs 17 on the upper ends of the arms 14 project through the casing to allow the arms to be disengaged from the base. Inward motion of the lower parts of the arms is limited by a stop on one of them. A hook 22 is secured to the casing to allow the device to be attached to the clothing of the user.
Patent GB-489976-A (GB)
Title: A machine for lifting out of drills, rooting and topping turnips, swedes and mangels
IPC: A01D31/00
Filed: 1937-02-11
Abstract: 489,976. Endless. - chain elevators. STEWART, G. C. Feb. 11, 1937, No. 4072. [Class 78 (i)] [Also in Group I] The machine is carried by land wheels C, D, independently adjustable for height, the wheel C driving a shaft C<3> through chain gearing and a clutch. The shaft C<3> drives, through chains and spur wheels, the upper shaft K of the endless chain elevator L, this elevator passing also round sprocket wheels K<3> ... K<6>. The elevator comprises links connecting cross-bars L<1>, L<3> ; four consecutive bars L<1> are bent in the middle as shown in Fig. 4, the bends being held in the position shown, each fifth cross-bar L3 being straight and forming a pivot pin for a lifting fork L<4>. The forks L<4> carry knives L<5> for tailing the roots, these knives being attached to quadrant plates L<6> at each side of the fork. The plates are slotted to take the ends of the preceding cross-bars and springs L<7> hold the forks against the chain. The lower elevator sprocket wheels K<4>, K<5> are mounted in a sliding frame K<7> which is reciprocated by a crank-shaft M driven from the shaft C<3>, the speed of the shaft M being such that a forward thrust is given to the frame K<7> as each fork L<4> is at the bottom of the wheel K<4>. The sprocket wheels K3 are keyed to their shaft which drives the topping knife shaft P through a chain-and-sprocket gear O<1> and timing device actuated by a striker lever tripped by the roots being carried up by the elevator to give a half revolution to the shaft P. The forks L<4> on reaching the top of the elevator are tilted by a fixed cam T to release the roots which fall on a plate T<1> leading to a container F. Adjustable coulters R bring the roots into line with the forks. The topping and the tailing knives may be put out of action.
Patent GB-499073-A (GB)
Title: Improvements relating to the control of helicopter or rotating wing aircraft
IPC: B64C27/54
Filed: 1938-10-03
Abstract: 499,073. Aircraft with rotary-wing systems. FOCKE, H. Oct. 3, 1938, Nos. 4073 and 28699. Convention dates, Oct. 4, 1937 and May 30, 1938. [Class 4] In an aircraft provided with side-by-side rotors and in which elevational control is effected by real or virtual tilting of the rotor axes, control in azimuth is obtained by differential forward and rearward tilting of the rotors on the two sides of the aircraft. As shown, forward or rearward movement of a joy-stick a through cables f, g for the rotor on the left-hand side of the machine and cables h, i for the rotor on the right-hand side rotates wheels k, which through screw-and-nut mechanism m, tilts swash plates n, which through links o and levers p cause a cyclical variation of the blade-pitch. Turning a rudder-bar e through cables r and a rotatable-sleeve c provided with horns connected to the cables actuates the wheels k to cause a differential change of blade pitch between the two rotors. In a modification, the rotors are mounted for positive tilting of the rotor axes.
Patent GB-1189796-A (GB)
Title: Process for Producing L-Tryptophan.
IPC: C12P13/22
Filed: 1969-01-24
Abstract: 1,189,796. L-Tryptophan production. KYOWA HAKKO KOGYO CO. Ltd. 24 Jan., 1969 [24 Jan., 1968], No. 4096/69. Heading C2C. L-tryptophan is produced by aerobically culturing a histidine-requiring microorganism of the genus Corynebacterium, Athrobacter or Bacillus in an aqueous nutrient medium and accumulating the L-tryptophan in the resultant culture liquor. Specified microorganisms are Athrobacter paraffineus ATCC 21333, Bacillus subtilis ATCC 14662 and Corynebacterium glutamicum ATCC 21334.
Patent GB-716056-A (GB)
Title: Current-supply means for weft stop motions
IPC: D03D37/00
Filed: 1952-02-18
Abstract: 716,056. Weft stop-motions in circular looms. SAINT FRERES SOC. ANON. Feb. 18, 1952 [Feb. 21, 1951], No. 4205/52. Class 142(2) The current for an electric weft stopmotion is led through the reed to a loom shuttle. The shuttle 1, carrying a weft stop-motion 2, has resilient brushes 5, 6 engaging the reed blades 11. In one embodiment, Fig. 4, sectors a of the blades 11 are connected to one terminal of the current supply, and sectors b are connected to the other terminal, sectors c being insulated. In a second embodiment, Fig. 2, the reed blades are arranged in two rows 9, 10, each row being connected to one terminal of the current supply. One brush is arranged to contact the front row of blades and the other brush is arranged to contact the other row.
Patent GB-1072866-A (GB)
Title: Rolling mill control apparatus
IPC: B21B37/48
Filed: 1965-02-01
Abstract: 1,072,866. Automatic tension control. WESTINGHOUSE ELECTRIC CORPORATION. Feb. 1, 1965 [Feb. 20, 1964], No. 4223/65. Heading G3R. In a multi-stand rolling mill, a signal representative of the resultant of the horizontal component of the rolling force and the forward and backward tensions of the material at one stand is obtained before the material reaches the next stand and compared with the corresponding signal when the material reaches the next stand, any difference representing the tension in the material between the stands, being maintained constant automatically. In Fig. 3, transducers 24, 28, respectively located between frame and chocks associated with top and bottom work rolls, which are displaced with respect to back-up rolls (not shown) at a strip rolling mill stand N, produce signals representative of the resultant of horizontal components of rolling force and forward and backward strip tensions. A device 60 responsive to the vertical component of rolling force or to strip temperature, detects when the beginning of a new strip reaches stand N and opens a gate 64 until the strip reaches the next stand N + 1 and. another device 62 responds. During this period, when the forward tension is zero, the resultant tension signal is stored at 66 for comparison in a circuit 68 with the resultant tension signal after the strip is engaged by both stands to produce forward tension. Any difference, representing tension in the strip between stands N & N + 1 is compared at 70 with a signal from circuit 72 representing desired tension. Any error produces a voltage VE which effects automatic correction by controlling roll speeds or screwdown. In a modification, the horizontal component of the rolling force is computed from measurement of its vertical component and strip thicknesses as measured by radiation gauges before and after rolling. The relationship between the horizontal and vertical components of the rolling force is determined experimentally with the aid of rollers pressing on the material at each side of the stand to measure forward and backward tensions.
Patent GB-1168552-A (GB)
Title: Demodulation Circuits for Colour Television Receivers
Inventor: KRAUSE GERHARD
IPC: H04N11/16
Filed: 1967-01-27
Abstract: 1,168,552. Colour television. FERNSEH G.m.b.H. 27 Jan., 1967 [16 Feb., 1966], No. 4232/67. Heading H4F. . A chrominance subcarrier signal formulated in accordance with the P.A.L. method of operation is demodulated directly to obtain I and Q video frequency signals with the aid of two synchronous demodulators 8 and 9, the first of which receives a reference subcarrier oscillation from source 10 at phases of 0 and 180 degrees in alternate lines and the second of which receives an oscillation at 90 degrees in all lines. The resulting signals in each channel due to two successive lines are then combined by means of adding circuits 6<SP>1</SP> and 71 which receive inputs via direct paths and paths which include one-line-duration delay devices 3<SP>1</SP> and 3<SP>11</SP>. The final signals are matrixed in circuit 13 to obtain component colour signals. By arranging the circuit so that, in contrast to the known art, the signal delay is effected at video frequency, the invention permits the use of delay devices of limited bandwidth. Reference is made to the use of delay devices based on inductors and capacitors, although quartz and glass delay devices may be used if the video signals are subjected to a suitable frequency change for translation through the devices.
Patent GB-1013563-A (GB)
Title: Improvements in or relating to filters
IPC: B01D46/00
Filed: 1962-02-05
Abstract: 1,013,563. Filters. R. J. STEVENS. April 29, 1963 [Feb. 5, 1962], No. 4310/62. Headings B1D and BIT. A plurality of thin plates perforated by an etching or electrolytic process is arranged, with the perforations of adjacent plates overlapping, between two outer plates 5, 5A, Fig. 4, each outer plate having half the number of perforations, so that fluid entering at 4 flows edgewise between the plates and leaves at 4A. Two such assemblies are secured between grids, Fig. 8, depending from a circular plate 6, Fig. 6, and placed in a pipe 6A for inward and upward flow. Fig. 12 (not shown) depicts a similar assembly of circular discs. Fig. 17 shows a filter of the kind according to the invention with means for cleaning. Inlet valve 14E and filtrate valve 14H are closed, and a valve 15A for admitting cleansing fluid is opened. An exhaust valve 14F is also opened so that fluid and residue leaving by pipes 14C and 14D may pass through it. Specification 721,592 is referred to.
Patent GB-710160-A (GB)
Title: Method of operating evaporators having separate heaters heated by compression of the vapours produced
Inventor: EBNER KARL
IPC: B01D1/28
Filed: 1952-02-19
Abstract: <PICT:0710160/III/1> In evaporators in which the liquid to be evaporated is circulated between an evaporating chamber 1 and a heater 2, circulation is effected by a gas, e.g. air, uplift pipe 3 discharging above the liquid level in the evaporator, air, steam or other gas being introduced at 4 near the lowest point in the circulation of the liquid.  Some of the vapour from chamber 1 is removed by line 10, p  compressed by steam ejector 9 and led to the heater 2.  The remainder is condensed at 8.  Vacuum is maintained in the evaporator 1 by ejector 14 assisted if necessary by an ejector 16. The heater 2 is exhausted by ejector 13.  A separator 12 enables entrained liquid in line 10 to be returned to the evaporator.  An apertured baffle 11 is preferably located above the pipe 3 to deflect the discharged liquid while allowing air and vapour to escape into the vapour space 1.  Concentrated liquid is withdrawn at 18.  The apparatus is particularly suitable for concentrating corrosive, saline, acid or alkaline solutions, e.g. spent spinning solutions and solutions used in the production of potassium salts since it is possible to operate at 40 DEG C. or less thus enabling materials such as alloy steels and copper alloys, e.g. aluminium bronze, which would be excessively corroded at higher temperatures, to be used in the construction of the apparatus.
Patent GB-1213728-A (GB)
Title: Optical device
IPC: G02B17/00
Filed: 1968-01-29
Abstract: 1,213,728. Reflecting objectives; projection printing. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Jan.29, 1968 [Feb.1, 1967], No.4441/68. Headings G2A and G2J. A device for imaging a mask 3 upon a semiconductor substrate 11 includes an optical system having a spherical mirror 8 and two lenses 5, 6, wherein surfaces 9, 10 of the lenses have the same centre of curvature as the mirror 8, surface 13 being planar, and wherein the optical distance from the mask to the mirror is equal to the radius of curvature of the mirror. A half-silvered plane mirror 7 is provided in the lens system, and the image may be viewed through a microscope located on ray a. In a practical embodiment, lenses 5, 6 have refractive indices of 1À69 and 1À75 respectively, and the radii of curvature of surfaces 8, 10, 9 are 21 cms, 8 cms and 4 cms respectively. The device is used to image a mask 3 upon a photoresist 11 in the manufacture of a semi-conductor device.
Patent GB-416633-A (GB)
Title: Improvements in electric switch-fuses
IPC: H01H31/12
Filed: 1934-02-10
Abstract: 416,633. Snap action switches. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, POOLEY, A. M., Riverdale, Tixall, Staffordshire, and HEATH, A. A., Lydstep, Rowley Park, Stafford. Feb. 10, 1934, No. 4482. [Class 38 (v).] A snap - action switch-fuse has an operating spindle 3 driven by a handle through a dead-centre spring toggle. The spindle 3 carries, for each pole of the switch, a bracket 1 on which are clamped two insulating plates plates 4 separated by spacers and which carry between them metal blades 6, the right hand ends of which serve as movable contacts co-operating with fixed contacts 9. A fuse 7 is bolted to the blades 6 by means of end lugs 7<a> which also constitute the electrical connections. In a modification for a heavier type of switch fuse, each fuse is carried by two pairs of insulating plates and the contact blades are U-shaped having the limbs passing between the pairs of plates with the fuse bolted to the base of the U.
Patent GB-500082-A (GB)
Title: Improved method and device for forming heat or sound insulating coatings
IPC: E04F21/10
Filed: 1938-02-14
Abstract: 500,082. Cement guns &c. BOER, K. L. DE. Feb. 14, 1938, No. 4517. [Class 20 (ii)] (Also in Group III] Heat or sound insulating coatings of fibrous material, e.g. asbestos, moistened with an adhesive, are formed, e.g. on walls, plates or pipes, by ejecting the fibres from a nozzle by mechanical means engaging the fibres, the stream of fibres thus obtained being brought into contact with the sprayed adhesive. To prevent the formation of dust, the fibres may be slightly moistened, preferably with water, before they are ejected. Apparatus for carrying out the process comprises a casing 1 provided with a hopper 2 for the fibrous material and with a tangential nozzle 3, the casing containing a driven roller 5, the circumference of which is provided with a large number of steel pins 5a which carry along the fibres and eject a stream thereof through the nozzle. The adhesive is supplied from one or more sprayers. directed upon the part of the surface to be coated, which sprayers may be situated outside or, as shown at 6, inside the nozzle 3. The feed of the fibres from the hopper 2 may be assisted by a driven roller 7 provided with vanes or rows of pins 8. To assist in loosening the fibres, the inside of the casing 1, in the portion between the hopper 2 and nozzle. 3, may be covered with pins 9a which are preferably inclined in the direction of rotation of the roller 5 and mounted in a layer 9 of resilient material, e.g. rubber or leather. The apparatus may be movably mounted on a movable support so that it can be displaced both vertically and horizontally. In a modification, the roller 5 is mounted on a vertical spindle at the bottom of a casing acting as a hopper, the casing being enlarged at one part of its circumference to facilitate the passage of the fibres to the periphery of the roller.
Patent GB-686780-A (GB)
Title: Improvements in or relating to synchronising devices
IPC: F02D25/02
Filed: 1950-02-23
Abstract: 686,780. Fluid-pressure servomotor-control systems. NAAMLOOZE VENNOOTSCHAP KONINKLIJKE MAATSCHAPPIJ DE SCHELDE. Feb. 23, 1950 [Feb. 24, 1949], No. 4694/50. Class 135. In a device for synchronising the motions of two rotating parts by hydraulically controlling the driving means of one or both of them and comprising two rotatable ported slide members 5, 6 fitting one inside the other and driven by the respective parts, the control edges of the ports in at least one of the slide members are inclined to the axis or generating lines of these members and the members themselves are relatively axially adjustable. Any lack of synchronism between the parts results in the ports in the two members coming more or less into register to allow the passage of a pressure fluid to regulate the driving means aforesaid. The relative axial adjustment of the slide members enables the lap of the ports in the position of synchronism to be adjusted to positive or negative values. In the latter case a continuous circulation of pressure medium is maintained and the danger of the fluid system becoming blocked is minimised. The two rotating parts, which may be marine engines working in parallel, drive shafts 8, 9 respectively in the same direction. The shafts 8, 9 drive the slide members 5, 6 through gears 10, 12 and 11, 13 in a casing 2. The latter has a tubular extension 1 which supports the slide members and has a connection 23 to a source of pressure medium and connection 34 to the drive regulating means of one of the rotatable parts. The inner member 6 is divided by a partition 20 into a pressure chamber 21 and an exhaust chamber 35. The chamber 21 is continuously open to the supply connection 23 by ports 25, 26. A chamber 32 open to the connection 34 can be connected with the pressure chamber 21 through co-operating ports 30, 31 or with the exhaust chamber through ports 36, 37 the edges of all these being inclined to the axis of the slide members as shown. The ports 31, 37 in the member 5 extend over almost half its circumference. The member 5 is axially located by a flange 46 whilst the member 6 is axially adjustable by a screw 40 and a hand wheel 41. Heads on the screw 40 and a bolt 44 are connected by a box 43 having an open-sided slot.
Patent GB-745537-A (GB)
Title: Mineral oil composition of increased oxidation resistance
Inventor: POTT ANTHONY FRED DORAN
Filed: 1953-02-20
Abstract: The oxidation resistance of a mineral oil fraction, such as mineral lubricating oil, is increased by dissolving therein a minor proportion of a material obtained by the alkylation of a cresolic cut comprising at least 75 per cent by weight of m- and p-cresol and less than 5 per cent of o-cresol.  The specified cresolic cut may be alkylated, for example with an olefin, to introduce into the cresol molecule C1-C12 alkyl groups, preferably C3-C12 branched chain alkyl groups.  In an example of the preparation of a suitable alkylated cresolic cut, a m- and pcresol cut, derived from coal and consisting of 52.5 per cent m-cresol, 35.1 per cent p-cresol, 2.5 per cent o-cresol, 7.5 per cent xylenol and 2.4 per cent water, is alkylated with isobutylene to yield a material comprising 18 per cent monotert.-butyl mixed cresols, 42 per cent 4,6-ditert.-butyl-m-cresol and 28 per cent 2,6-di-tert.butyl-p-cresol.  For comparison purposes, the addition of the following butylated cresols to mineral lubricating oil is described: 4,6-ditert. - butyl - o - cresol, 4,6 - di - tert. - butylm - cresol, 2,6 - di - tert. - butyl - p - cresol, 2-mono - tert. - butyl - p - cresol and monotert. - butyl mixed cresols.  According to the Provisional Specification, the alkylated cresolic cut may be added to other oxidation-prone organic materials and natural fats are mentioned.ALSO:The oxidation resistance of a mineral oil fraction, such as mineral lubricating oil is increased by dissolving therein a minor proportion of a material obtained by the alkylation of a cresolic cut comprising at least 75 per cent by weight of m - and p - cresol and less than 5 per cent of o - cresol. The specified cresolic cut may be alkylated, for example with an olefin, to introduce into the cresol molecule C1 - C12 alkyl groups, preferably C3 - C12 branched chain alkyl groups.  In an example of the preparation of a suitable alkylated cresolic cut, a m - and p - cresol cut, derived from coal and consisting of 52.5 per cent m - cresol, 35.1 per cent p-cresol, 2.5 per cent o-cresol, 7.5 per cent xylenol and 2.4 per cent water, is alkylated with isobutylene to yield a material comprising 18 per cent mono - tert. - butyl mixed cresols, 42 per cent 4, 6 - di - tert. - butyl - m - cresol, and 28 per cent 2, 6 - di - tert. - butyl - p - cresol.  For comparison purposes, the addition of the following butylated cresols to mineral lubricating oil is described:- 4, 6 - di - tert. - butyl - o - cresol, 4, 6 - di - tert. - butyl - m - cresol, 2, 6 - di - tert. - butyl - p - cresol, 2 - mono - tert. - butyl - p - cresol and mono - tert. - butyl mixed cresols.
Patent GB-608153-A (GB)
Title: Improvements in and relating to crank mechanism
IPC: F16C3/30
Filed: 1946-02-15
Abstract: 608,153. Linkwork. BARTLETT, B. G. W. Feb. 15, 1946, No. 4840. [Classes 80 (ii) and 80 (iii)] [Also in Group XXXI] In crank mechanism, an eccentric 34, Fig. 11, is mounted on or formed integral with, and rigidly connected to the crank pin 33, so that the geometric centre 92 of the eccentric lags behind the centre line of the crank 31, and is located within the right angle having the crank pin axis 95 as its vertex, and the crank centre line produced as a side. Fig. 11 shows the invention applied to a multithrow crank-shaft. As applied to a bicycle, each crank pin 14, Fig. 1, carries an eccentric 15 about which the pedal 17 is free to rotate. Ball bearings may be inserted between the eccentric and the pedal. In a modification, shrouded toothed gears 68, Fig. 8, are located between, and mesh with teeth in the bore of the big end of a connecting rod 65, and teeth on the periphery of the eccentric 63.
Patent GB-537568-A (GB)
Title: Improvements in or relating to electromagnetic bells
IPC: G10K1/062
Filed: 1940-03-15
Abstract: 537,568. Bells. ERICSSON TELEPHONES Ltd., and MELTON, H. J. March 15, 1940, No. 4843. [Class 13] The inertia of strikers 14 held lightly in contact with the armature 9 causes them to be thrown therefrom on to the gong when the armature vibrates. The strikers may be balls kept normally in contact with the armature by their own weight or they may be held in contact by a light spring 11. In a polarized A.C. bell, the armature 9 is pivoted on the permanent magnet 6 which fits in a hole in a yoke 1 having a slanting cut 7 and a screw 8 by which the hole can be constricted to grip the end of the magnet.