baber/WOPTO huggingface dataset:
Patent GB-779457-A (GB)
Title: Improvements relating to colour television
Inventor: PERCIVAL WILLIAM SPENCER
IPC: H04N11/14
Filed: 1954-07-28
Abstract: 779,457. Colour television. ELECTRIC & MUSICAL INDUSTRIES, Ltd. July 22, 1955 [July 28, 1954], No. 22012/54. Drawings to Specification. Class 40 (3). In a colour television transmission wherein chrominance signals are transmitted within the same frequency band as luminance signals, lowfrequency chrominance signals are transmitted at reduced amplitude relative to higher frequency chrominance signals. The invention has the effect of increasing compatability by: (1) reducing audible " buzz " produced in monochrome receivers by the audio frequency components of the chrominance, signals; and (2) reducing the visibility of the dot structure occurring in the reproduced image at the difference frequency between the luminance and chrominance carriers. In one arrangement, chrominance signals in the range 50-1000 c/s. are attenuated 12 db relative to the remaining signals. In another arrangement effective to reduce the dot structure except on transients, signals in the range 0-100 kc/s. are attenuated 12db. Colour receivers for the transmission are arranged with complementary attenuation characteristics to restore the signal levels. The chrominance signals are conveyed by subcarrier or, preferably by an independent carrier generated by a separate transmitter as in Specication 754,742. When a sub-carrier is used, a colour receiver preferably employs a filter in the luminance channel to remove luminance components within Œ100 kc/s of the sub-carrier.
Patent GB-381988-A (GB)
Title: Improvements in or relating to change gear control mechanism
IPC: B61C9/12
Filed: 1932-05-03
Abstract: 381,988. Controlling change speed gearing. ALCOCK, J. F., 24, Davies Avenue, Roundhay, Leeds. May 3, 1932, No. 22057/31. [Class 80 (ii).] Control mechanism for change-speed gearing in which pressure air, oil, &c. effects the actual change comprises a preselector lever 35, Fig. 1, which determines which of two selector bars 1, 2, Fig. 5, will be moved, and also the direction of such movement, by selecting which of two valves 48, 49 will be opened by subsequent depression of an engine clutch pedal 67, Fig. 3. The double selection is effected by moving the lever 35 in a cross-slotted gate 37, Fig. 2. A main control lever 33, Fig. 1, is carried on a fixed pivot 79, and the bars 1, 2 are connected so as to be operated by it selectively by a catchlever 34 which is moved through a fixed gate 61 into engagement with one or the other. For this purpose, the catch-lever 34 is connected through a resilient linkage 54, 53, 55, 52 and perpendicular link 50 to the heel of the lever 35. A second spring linkage 38, 44, 39, 40, 41, 42 connects the lever 35 also to a cam 47, Fig. 2, which is thus moved selectively over one of the plunger valves 48, 49, Fig. 5. When, say, the valve 49, Fig. 3, has been thus selected for operation, and the catch 34 engages the bar 2, as shown in Fig. 1, subsequent depression of the pedal 67 opens the engine clutch 67<1> and also a main valve 68, Fig. 3, by a direct connection 69, and opens also the distributing valve 49. The valve 49 is opened by depressing its plunger by turning the cam 47, Fig. 8, which has been slid over that plunger from the lever 35. The turning of the cam 47 is effected by the pedal 67 through a linkage 73, 74, 75, Figs. 1 and 2, to the cam shaft 42. A parallel shaft 59 is simultaneously rocked to effect the unlocking of the main lever 33 by means not shown. The opened main valve 68 connects a cylinder 70, Fig. 3, to a fluid pressure pipe 71 leading from a reservoir &c. A double piston 83 moves so as to thrust fluid from a cylinder 80 by a pipe 85 through the open valve 49 to a cylinder 8 so as to thrust a relay plunger 3 to the left of Fig. 3 and perpendicularly to the plane of Fig. 1. This operates the main lever 33, which passes through the plunger and carries the catch 34 and the bar 2 with it, whereby through a rock shaft 65, Fig. 5, a change is effected in change gearing not shown. The bar 1 acts on a second rock shaft 64. Opening the valve 48 would have thrust the bar 2 the other way, and a different presetting of the lever 35 would have operated the bar 1. As the main lever 33 makes its gear-changing stroke about its pivot 79, it carries with it a cage 45 to which it is secured, this cage being connected by springs 46 to the slidable cam 47. The cam 47 therefore tends to follow the main lever 33 by moving to the left of Fig. 8, but is prevented by the undepressed valve plunger 48. The distributing valve 49 in action is thus kept fully open until the pedal 67 has been raised to let in the engine clutch and at the same time to release the fluid pressure system.
Patent GB-442082-A (GB)
Title: Improvements in epicyclic variable speed gearing
IPC: F16H3/72
Filed: 1934-07-28
Abstract: 442,082. Pumps. ELLOR, J. E., Grandell, South Drive, Chain Lane, Mickleover, Derby. July 28, 1934, Nos. 22104 /34 and 14969 /35. [Class 7 (ii)] An epicyclic train drives a main blower b and also another blower or pump, the speed of the main blower being varied by varying the torque absorbed by the other device. Either the planet-cage b2 or the sun-wheel b<8> may be fixed to the engine crank-shaft b. Double planet-pinions b<4>, b<3> engage the sunwheel b<8> and the pinion b<5> on the shaft of the blower b<7>. The cage or sun-wheel, whichever is not fixed on the driving shaft, also engages a pinion b driving a triple-cylinder compressor c. The resistance to movement of the pinion b<9> is adjusted by opening or closing the valve c<4> in the conduit between the compressor c and reservoir c<5>. In a modification, Fig. 4, a Roots' blower or other compressor f delivers through a controlled nozzle g<2> into the discharge passage from the blower b<7>. The torque absorbed by the blower f is dependent on the position of the enlarged end h<1> of the rod h in the 'nozzle g<2>. There may be a slotted connection j of the rod h with the throttle so that at closed throttle there is little obstruction of the nozzle and therefore little torque retained for driving the main compressor b<7>. When the pin j<1> ceases to hold the rod back, barometric or other automatic or manual control of the rod may take place.
Patent GB-808313-A (GB)
Title: Metal pigment pastes
Inventor: MEYERBERG HEINZ
IPC: C09C1/62
Filed: 1955-08-02
Abstract: Metallic pigment pastes having a volatiles content of from 23 to 30 per cent are produced by blade-stirring a metal paste having a non-volatile content of 63 to 68 per cent for a period of at least 1/4 hour and preferably several hours, with the optional addition of about 2 per cent of a leafing agent (additional to that present in the original paste) and thereafter mixing the treated paste with further flaky metal powder, introduced with or without a restricted amount of volatile hydrocarbon, e.g. mineral spirits or white spirit, followed by stirring for a further period of 15 to 30 minutes.  The metal powder introduced at the second stage may be the same as or different from that in the original paste; e.g. if the original metal is aluminium, the metal added may be aluminium, copper or bronze. Colouring matter may also be added at this stage. Specifications 391,839, 606,751, 676,641 and 676,642 are referred to.
Patent GB-170668-A (GB)
Title: Improved portable kiosk for selling newspapers, books or other articles
IPC: E04H1/12
Filed: 1920-07-26
Abstract: 170,668. Ihmels, D. July 26, 1920. Kiosks.-A portable kiosk for selling newspapers, books, &c., comprises a closed lower part b, mounted on small road wheels, movable in any direction and adapted to be braked, an upper part with an open side closable by a Venetian blind, a door at the rear side, an horizontal board f projecting from all sides and having a folding portion h adjacent to the door, and a roof having a projecting lower edge l for the protection of goods and customers, the outer walls being adapted for temporary or permanent advertisements.
Patent GB-693805-A (GB)
Title: Glass horticultural shelter
IPC: A01G13/04
Filed: 1951-09-22
Abstract: 693,805. Cloches. POMFRET, W. L. J. Sept. 22, 1951, No. 22235/51. Class 20 (i). A cloche has two or more transverse frames for supporting side sheets of glass and end or intermediate transverse sheets, each frame comprising at least two horizontal members 4 separated by a vertical member 1, the members 4 having hooks 7, 8 to support the side sheets and 10, 11 to support the end or intermediate sheets. The members 1 have pins 2 which pass through central holes 3 in the members 4 which are made of two wires bound together at 5, the end of each wire being, formed into the hooks 7, 8. A wire 9 having the hooks 10. 11 fits onto the member 4 at 6. Wires 12, 13 having a screwed stud 14 form roof hangers, the wire 13 engaging a loop 15 in a roof clip when the roof sheets are in position, and the loop 16 in the clip engaging the wire 12 when. the roof sheets are swung separately about 15 to permit access to the plants. Vertical members 1 may be superimposed, the pin- 2 entering the member 1 below, to increase the height of the cloche.
Patent GB-1468608-A (GB)
Title: Photoexposure system
IPC: G09G1/00
Filed: 1974-05-20
Abstract: 1468608 Character scanning and generating systems GERBER SCIENTIFIC INSTRUMENT CO 20 May 1974 [5 July 1973] 22387/74 Heading H4F A system for recording a symbol on a photosensitive medium includes a cathode-ray tube which faces the medium and on which the symbol is displayed, and includes electronic means for rotating the symbol on the c.r.t. to a desired orientation and for placing the oriented symbol at a required position on the c.r.t. face. The displayed symbol is exposed on a selectable region of the medium. As shown in Fig. 1 the c.r.t. 26 is mounted on a carriage so that it can be positioned at a required place over the photosensitive medium 28 by rotation of lead screws 38, 44 in accordance with an input at 48. There may be a lens system 46 in front of the c.r.t. In one embodiment the input 48, e.g. magnetic tape, causes processor 22 to give digital signals X, Y, Z which define a particular symbol to be passed via registers 53 to digital-analog converters 59-61, and also to give values representing the required orientation #, X and Y offset X0, Y0, and the scale of the symbol to be displayed, via registers to converters 58, 86, 84 and 74. The analog values of X, Y and # pass to a resolver 64 (Fig. 7, not shown) which provides signals representing the rotated symbol. The signals are multiplied at 76, 78 by the scale factor, and to the result there is added at 88, 90 the offset values X0, Y0, to provide deflection signals which, together with the analog Z signals, cause the symbol to be displayed. In order to record on medium 28 a symbol such as a large rectangle, the deflection signals may be caused initially to trace the outline of the character and then be progressively reduced in value by control of the scale so that the trace fills in the area defined by the outline (Fig. 8, not shown). If a broad line is to be recorded on the medium, the c.r.t. displays a straight line of length equal to the width of the broad line, and as the carriage is moved to sweep the displayed line along the desired path of the broad line the orientation of the displayed line is adjusted so that it remains transverse to the path at all points. The intensity of the beam may be varied in accordance with the speed of the carriage. In an alternative arrangement the resolver, multipliers, and adders may be omitted, the required operations being effected within the processor 22. In a second embodiment (Fig. 10, not shown) the input signals cause a camera tube to scan a selected symbol, the output of the camera controlling the Z input of the c.r.t. on the carriage. In this case the c.r.t. has a raster scan synchronized with that of the camera and modified by X and Y offset values and by an orientation value.
Patent GB-371250-A (GB)
Title: Improved driving gear for artificial silk bobbin-spinning machines
IPC: B65H59/38
Filed: 1931-08-07
Abstract: 371,250. Artificial silk spinning- machines. BARMER MASCHINENFABRIK AKT.-GES., Oberbarmen, Wuppertal, Germany. Aug. 7, 1931, No. 22399. Convention date, Sept. 9, 1930. [Class 120 (ii).] In bobbin spinning-machines for artificial silk provided with a single pair of cone drums for driving the bobbins, means are provided for rapidly returning the belt along the cones during the changing of the bobbins, the rotation of the bobbin-carrier for changing being controlled by the means for reversing the travel of the belt. The screw 7 which operates the belt fork 6 is operated by a ratchet wheel 10 during winding, at the conclusion of which a clutch 8 is operated to disconnect the wheel 10 and connect a rapidly driven wheel 14. Simultaneously with this movement a locking- lever 25 is actuated to release a key 26 by means of a nose 56, so that the bobbin-carrier 54 is engaged thereby with a wheel 27 and rotated through 180‹ until the key 26 is engaged by a nose 57 on the lever 25. The clutch 8 is operated by a rod 21 which is coupled with a lever 20 connected by a spring 19 with a rod 18. A stop 15 on the belt guide is arranged to engage stops 16, 17 on the rod 18 at the ends of its travel, and so to operate it that the spring 19 moves through a dead point and operates the lever 20 to couple and uncouple the clutch 8. A member 58, Fig. 4, on the rod 21 operates a ratchet wheel 59 and so rotates a cam 23, Fig. 3, and displaces a rod 24 to actuate the lever 25. Instead of the rod 18, springs and trip gear may be arranged on the rod 21 and operated by the belt fork to effect the reversals.
Patent GB-271310-A (GB)
Title: A lifting jack for motor and other vehicles
IPC: B66F11/00
Filed: 1926-09-11
Abstract: 271,310. Taylor, A. A. Sept. 11, 1926. Jacks. -A lever jack has a base formed with a runway for a carrier fitted with rollers and supporting the crutch. The base 1 is mounted on wheels 2 and fitted with a handle 18. The base is formed with a runway 8 for the rollers 11 of a carrier 14 supporting the crutch 16. A casing 6 is fitted to the base and is formed with a slot 13 for the neck of the carrier, the carrier being adapted to traverse the runway from end to end of the. slot and being retained at the handle end by a pivoted hook 17. In operation, the crutch is placed under the load and the handle depressed so that the load is raised and by pushing on the handle 18 the carrier traverses the runway to the handle end where it is secured by the hook 17.
Patent GB-500299-A (GB)
Title: Improved revolving-cylinder fluid pump or motor
IPC: F01B3/00
Filed: 1937-08-16
Abstract: 500,299. Revolving - cylinder pumps and compressors. YOXALL, J., and PROPELLO INVENTIONS, Ltd. Aug. 16, 1937, No. 22489. [Classes 8 (i) and 102 (i)] [Also in Groups XXIV, XXVII, and XXIX] A revolving-cylinder fluid motor or pump comprises a rotor 17 mounted upon an extension 15 of the casing, and driven through a clutch 19 from a shaft 16 mounted within the extension 15. The pistons 29 are loaded by springs 31, and engage a plate 39 mounted on a bearing 38 carried by a housing 32, the inclination of which is variable to vary the stroke of the pistons, and is pivoted on an axis, so arranged, that whatever the inclination, during a part of each revolution at least one cylinder bore is completely filled by its piston. The 'inclination of the housing 32 is adjusted by the screw 35. Grooves 24, 25 are provided for lubrication. The springs 31 press the rotor 17 into engagement with a flat valve plate 27. In a modification the ends of the pistons are provided with hooks which engage short spindles carried by the plate 39.
Patent GB-617207-A (GB)
Title: Improvements in containers
IPC: B65D25/20
Filed: 1946-07-29
Abstract: 617,207. Moulded containers for food &c. JACQUES, D. July 29, 1946, No. 22512. [Class 66] [Also in Group XV] A container 1 of moulded olastic has integral with its sidewall a label-holder 2 backed by said wall and having a label-insertion gap facing towards the rim 3. The holder may be a raised frame as shown or a slot in the sidewall itself ; the labelinsertion gap being in both cases, flush with the rim 3 so that it is closed by the margin 8 of a lid 6. In a modification, the label-insertion gap is below the rim 3 and is closed by the lower edge of a depending flange on the lid.
Patent GB-1174025-A (GB)
Title: Method of Driving Appliances Supplied with Three-Phase Alternating Current
Inventor: KLUG HELMUT
IPC: H02P1/30
Filed: 1968-05-13
Abstract: 1,174,025. Control of A.C. motors. INSTITUT FUR SCHIENENFAHRZEUGE. 13 May, 1968, No. 22593/68. Heading H2J. An air-conditioning plant for railway vehicles comprises asynchronous motors 4, 6, driving respectively a fan 5 and compressor 7, as well as an incandescent lamp 9 associated with voltage stabilizer 8. An unregulated directvoltage source 1 is connected through an inverter 2 to the plant, the inverter comprising valves which are ignited by pulses from a unit 3 to provide a desired frequency output. When the motor 4 takes a high starting current, the voltage-drops in the inverter 2 and source 1 increase to reduce the voltage applied to the motor below the value obtaining during normal service. The frequency of the output of the inverter is then reduced in proportion to the input or output voltage of the inverter to maintain the starting torque constant. After the motor has started, the frequency is restored to a constant value, the frequency-increase taking place as a function of time, current, or voltage. The arrangement may be such that the voltage-proportional frequency variation occurs within a predetermined voltage range, and, outside this range, the frequency is kept constant. When the motor 6 is started while the motor 4 is still running, the frequency is again reduced and then restored to its original value, the current consumption of the motor 4 being reduced for a short period.
Patent GB-258592-A (GB)
Title: Improvements in or relating to electrical rectifying installations
IPC: H02M1/20
Filed: 1926-09-14
Abstract: 258,592. Siemens Schuckertwerke Ges. Sept. 19, 1925, [Convention date]. Addition to 244,092. Preventing interference with external oscillatory circuits.-Relates to means for preventing oscillations produced on the direct current side of mechanical rectifiers from interfering with local wireless stations as described in the parent Specifications, and consists in placing a resistance in the earthed lead of the high tension circuit. The Figure shows the invention applied to an arrangement for supplying a gas purifier 7 with high tension direct current by means of a transformer 1 and rectifiers 5. The resistance 10, which is preferably of silite, is connected in the earthed lead 2 from the mid point of the transformer secondary.
Patent GB-1328434-A (GB)
Title: Method of producing a transistor with an insulated gate electrode
IPC: H01L21/18
Filed: 1971-04-19
Abstract: 1328434 IGFET LICENTIA PATENTVERWALTUNGS GmbH 19 April 1971 [5 March 1970] 22734/71 Heading H1K In manufacturing an IGFET, after forming the source and drain regions by diffusion through windows in an insulating layer, the insulation overlying the gate region and some of the underlying semi-conductor material is removed e.g. by etching prior to formation of a new gate insulation layer. When oxide forms in the windows during diffusion this may also be etched away, in which case semi-conductor material is removed over the entire area thus exposed. Silicon dioxide and nitride are suitable materials for the insulating layers. Where the electrodes are to extend as tracks over the insulation stray capacitance is reduced by first providing a 1À2 Á thick insulating layer overall, etching it from the device area and then forming a thinner 0À4 Á layer for use as the diffusion mask. Finally contact holes are formed over the source and drain regions and aluminium vapour deposited to simultaneously provide all the electrodes.
Patent GB-1518081-A (GB)
Title: Radiators
IPC: F24D19/06
Filed: 1975-08-21
Abstract: 1518081 Panel radiators MYSON HEATING PRODUCTS Ltd 21 Aug 1975 [22 May 1974] 22802/74 Heading F4S [Also in Division B3] A panel radiator produced according to the parent Specification is provided with an elongate cover at the ends and preferably also at the top of the panel. When a top panel is provided it may be in the form of a grille (Fig. 4). In the case of a twin panel radiator, Fig. 2, end cover plates 34 may have wire or strip spring retaining elements 38 for engagement behind water ducts on the inner faces of the panels, and a top grille may be similarly retained. In the case of a single panel radiator, Fig. 6, end and top covers 32, 38 are secured together by corner pieces 48, the end cover being retained by a clip 42 engaging behind a union 20, and the top cover 32 having a clip 44 engaging the top of a convector channel (not shown) on the rear face of the panel. By providing cover plates down each end of the radiator a substantially enclosed convector channel is defined between the radiator panel and the adjacent wall or between the two panels of a double-panel unit.
Patent GB-1260807-A (GB)
Title: Cross-wedge rolling machines
Inventor: HOLUB JIRI
IPC: B21H1/18
Filed: 1970-05-12
Abstract: 1,260,807. Transverse rolling. VYZKUMNY USTAV TVARECICH STROJU A TECHNOLOGIE TVARENI. 12 May, 1970, No. 22829/70. Heading B3M. A cross-wedge rolling machine, in which a workpiece 3 is rolled between wedge-shaped tools 4, 4<SP>1</SP> on rolls 5, 5<SP>1</SP>, incorporates first and second guiding and feeding means 7, 15; and 6, for axially feeding a workpiece between the rolls. When the front end of a workpiece has been heated by an induction heater 14 to the required temperature, it is clamped by jaws 15 and moved from a position A, Fig. 4, to a position B. The bush 7, which also moves to position B, contacts a switch 16 which effects movement of the bush 6 from a position C to a position D. The jaws 15 release the workpiece and together with the bush 7 return to the position A where they clamp on to the workpiece again. This clamping and releasing action is repeated until the workpiece enters a recess 21 in the stop 1 causing movement of element 17 which actuates the roll drive for a single rotation. During the rolling, the bush 1 is moved out of the working space to the left as seen in Fig. 10 by the expansion of the rolled workpiece while the bush 6 is moved out of the working space to the right by the same distance by the edge 22 of wedge 4. When the rolling process is finished, Fig. 11, the rolled part 24 is severed and cam 12 on the roller 5<SP>1</SP> engages switch 13 which causes clamping of jaws 15 and bush 7 on to the workpiece at the position A. The jaws and bush subsequently move to position B which actuates the switch 16 to cause the release of the workpiece by the jaws 15 and bush 7 and clamping of the workpiece by bush 6. The bush 6 is also moved into the position D and the working cycle repeated.