baber/WOPTO huggingface dataset:
Patent GB-388119-A (GB)
Title: Improvements in or relating to thermally-operating electric switches
IPC: H01H37/54
Filed: 1931-10-29
Abstract: 388,119. Thermal switches. WEST & CO., Ltd., A. and PAVITT, F. J., Lewes Road, Brighton. Oct. 29, 1931, No. 29993. [Classes 38 (iii) and 38 (v).] A thermal switch, which may be used for overload protection or in connection with motor starters to change over after a time interval from star to delta connections, comprises a bimetallic strip 1 held in compression between its ends and adapted to move over dead-centres with a snap action on change of temperature. The strip is of S shape and carries a contact 4 normally resting on a contact 5 carried by an adjustable lever 5b. The strip is heated by current passing between contacts 2, 3 and through the strip, and a resistance may be arranged in parallel. On heating, the strip snaps to the right, a portion 1b of it then engaging a stop rod 6. In this position the contact 4, which has left the contact 5, may engage another contact 15.
Patent GB-445894-A (GB)
Title: Improvements in or relating to television and like scanning systems
IPC: H04N3/34
Filed: 1934-10-19
Abstract: 445,894. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, and DOWSETT, H. M., 47, Drayton Gardens, Winchmore Hill, both in London, and WALKER, L. E. Q., Devon House, Townsend Drive, St. Albans, Hertfordshire. Oct. 19, 1934, No. 30049. [Class 40 (iii)] An image of a subject 3 is projected to two positions 7, 11, which are scanned in parallel lines in different directions by a scanning-disc 1 and are made alternately operative. The positions are on radii perpendicular to one another, and are scanned by a spiral of apertures or lenses. The two photo-electric cells 12, 13 and their amplifiers are rendered alternately operative by a commutator 15 driven with the disc at half its speed. In the receiver the cells are replaced by neon lamps.
Patent GB-1479361-A (GB)
Title: Label printing
IPC: B41K3/00
Filed: 1974-07-08
Abstract: 1479361 Tape dispensers and roll holders AVERY PRODUCTS CORP 8 July 1974 [9 July 1973] 30116/74 Heading B8M [Also in Division B6] A tape magazine M for use with a printer P including means for detachably supporting the magazine, a print head 202, an associated impression platen 7a and tape feeder drive means for actuating the magazine comprises a tape supply holder, a tape feeder mechanism and elongated guide means defining a feed path, the guide means being presettable laterally of its length, and the feeder mechansim comprising a movable tape-engagement means operable positively to feed tape, and a drive member arranged to effect a mechanical drive interconnection with the drive means of the printer when the magazine is attached to the printer, the drive member being actuatable repetitively to cause the tapeengagement means to execute repetitive feeding motions for advancing tape, the feeding motion being presettable so that the tape stops in a desired position in alignment with the print head when the feeding motion of the tapeengagement means ceases. The supply may be a roll of tape supported by hub 81 (Fig. 29) rotatably mounted to support 21, having a bore 82 with radial slots accommodating fingers 89 mounted on a slidable plug 96 within the bore. The fingers may be rotatable from the position shown in Figs. 1 and 29 to a position parallel to the axis of hub 81 to allow removal of the roll. Outer hub 87 is movable mounted on hub 81 to accommodate different tape widths. Printing machine P may also include a cutter actuatable in synchronism with the feeding and printing operations.
Patent GB-205708-A (GB)
Title: An improved padlock
IPC: E05B67/22
Filed: 1922-11-04
Abstract: 205,708. Mitchell, H., and Bryan, S. P. Nov. 4, 1922. Padlocks.-Relates to a padlock of the kind comprising a sliding shackle with a side opening as described in Specifications 11794/04 and 21515/06, and consists in providing a spring f acting on a shoulder h near the upper or outer end of the shackle a to move the latter to unlocked position. Reference has been directed by the Comptroller to Specifications 2793/73 and 27637/06.
Patent GB-285593-A (GB)
Title: A new or improved extending wardrobe, cupboard, or cabinet, applicable also as a showcase
IPC: A47B45/00
Filed: 1926-11-30
Abstract: 285,593. Boutd, H. Nov. 30, 1926. Cabinets and show cases, cupboards, wardrobes, shelves. - A cabinet or like structure is made to expand laterally and comprises three sections, of the central sections 3 is shallower than the outer sections 1, 2, and forms a receded front. The front of the central section is received in grooves 4 in the end sections and the upper and lower horizontal members of the carcase overlap and can be fixed in adjusted position by bolts 7 with thumb nuts. The width of the central section can be increased by attaching extra front panels to the said upper and lower horizontal members 5. Doors can be fitted to any of the sections and telescopic shelves may be provided.
Patent GB-1115337-A (GB)
Title: Method and means of feeding blanks to machine tools
Inventor: JANSONS ALFRED JANOVITSCH
IPC: B23Q7/04
Filed: 1965-07-16
Abstract: 1,115,337. Blanks transferring. TSENTRALNOE PROEKTNO-KONSTRUKTORSKOE BJURO MEKHANIZATSII I AVTOMATIZATSII. 16 July, 1965, No. 30264/65. Headings B3B, B3H and B3W. In a method of feeding blanks from a start position to a work position in a machine tool the feed is effected by a feed element which moves along a cycloidal path defined by the continuous and slipless rolling of a circle around another circle, the start positions and work positions occurring at reversal points in the cycloidal path. A device for effecting this feed motion is in the form of an epicyclic gear assembly in which a feed element 9 is mounted on a planet gear 7 supported on a planet carrier 4, the driven rotation of the carrier 4 produces rotation of the gear 7 and hence the arm of the feed element 9 the path traced by the end of the feed element being that of a hypocycloid C produced by the rolling of a circle A on the inside of a base circle B as shown particularly in Fig. 2. This motion produces at the reversal points D, D1, D2, &c., of the hypocycloid, a momentary static condition of the feed element which facilitates shockless engagement or disengagement with the blanks. In a modification the device may operate in co-operation with a rotary part or rotor of the machine tool so that the rolling action of the planet gear produces a hypocyclic path of the feed element 9 by movement around the inside of the base circle B having start positions 14 thereon, and an epicyclic motion of the feed element around the outside of the base circle F formed by the rotary part of the machine and having work positions 13 thereon. The transfer positions occur at the positions 13 and 14 and by maintaining a specific speed relationship between the planet gear and the rotary part blanks may be loaded and unloaded successively in the work position B of the machine tool. In a further modification two feed elements may be used carried on planet gears with centres of rotation spaced apart so that successive elements can load and unload blanks from any given position. Also, a plurality of rotary parts or rotors may be mounted on one shaft in the machine tool and the blanks transferred by the feed members from one position on one rotor to a position on another rotor.
Patent GB-957501-A (GB)
Title: Improvements in or relating to vehicles for travelling over land and/or water
Inventor: EGGINGTON WILFRED JAMES
IPC: B60V1/00
Filed: 1959-09-04
Abstract: 957,501. Air cushion vehicles. HOVERCRAFT DEVELOPMENT Ltd. Aug. 25, 1960 [Sept. 4, 1959], No. 30334/59. Heading B7K. A vehicle for travelling over a surface is at least partly supported above that surface by a cushion of pressurized fluid formed and contained beneath the vehicle by at least one curtain of fluid formed from one or more supply ports in the bottom of the vehicle and adjacent to the periphery thereof, the curtain fluid first flowing downwards and inwards towards the surface, at least part of the curtain forming fluid then flowing upwards and entering a recovery port or ports in the bottom of the vehicle, spaced inboard of and substantially parallel of the supply port, a space being formed by the flow of the curtain forming fluid between the downward-going limb of the fluid curtain and the upward going limb of the fluid curtain and being bounded on the upper side by the vehicle structure, means being provided for supplying fluid to the said space to maintain the pressure in the space at a predetermined value. The underside of the vehicle is formed with a supply port 12, from which air forming a peripheral fluid curtain is discharged downwardly, and a recovery port 13 into which the curtain air, after deflection by the supporting surface, is directed, thereby forming a space A. The pressure in this space is maintained at a predetermined value by the introduction of ambient air through a duct 14, 19 under the control of a spring-loaded valve 16, the spring tending to close the valve against an adjustable stop 22, and the valve operating automatically under the differential between the pressure in A and atmospheric pressure. A further embodiment discloses a valve in which the surface exposed to atmosphere is of greater area than that exposed to the air in space A. Duct 14 may be connected to the interior of the vehicle-supporting pressure cushion. The port 13 may have its inner lip positioned at a higher level than the outer lip and it may be formed with airdirecting vanes. The invention may be applied to a multiple-curtain system and an arrangement is described in which an engine-driven pump feeds the air from port 13 back to port 12, an auxiliary air intake being provided for admitting air to the pump when starting the vehicle. Specifications 854,211, 919,350, 935,823, 935,824 and 935,826 are referred to.
Patent GB-467082-A (GB)
Title: Improvements relating to internal combustion engines
IPC: F02B9/08
Filed: 1935-11-04
Abstract: 467,082. Cylinders. LEUVRAIS, J. Nov. 4, 1935, No. 30414. [Classes 7 (ii) and 7 (iii)] In a compressionignition engine having a very high ratio of compression capable of producing explosion of the fuelair mixture, the fuel is injected substantially before the end of the compression stroke whereby the admission of fuel ceases before commencement of ignition, and an explosion chamber is provided communicating with the upper part of the cylinder through an orifice of varying section, which is sufficiently small, when the piston is close to the end of the compression stroke and explosion takes place, as to deaden the effects of the explosion on the piston and increases subsequently in a gradual manner. Instead of injecting fuel, a fuel-air mixture from a carburetter may be admitted into the cylinder. In the fuel-injection engine shown in Fig. 1, a nozzle 8 injects into a torus-shaped combustion chamber 1 communicating with the clearance space 2 of a cylinder 9 by an orifice, the area of which is varied by means of a conical projection 3 on top of the piston ; a formula for determining the minimum section of the orifice is given. The exhaust passes through a convergentdivergent nozzle 12 in which an air-inlet 6 is provided ; a cam-operated valve 13 may be provided in the exhaust passage. A modification, Fig. 4 (not shown), comprises a four-stroke engine having overhead inlet and exhaust valves and an explosion chamber arranged to one side of the centre line of the engine. In the engine shown in Fig. 7, a valve 21 admits a fuel-air mixture from a carburetter into an. explosion chamber 1. To restrict the passage into the cylinder during the suction stroke, the valve co-operates with the edge 25 of a liner 24. A modification is shown in which the chamber 1 is in the piston.
Patent GB-1521267-A (GB)
Title: Apparatus for silencing a drum
IPC: G10D13/04
Filed: 1975-07-22
Abstract: 1521267 Drums LF LA PORTA and D S GOLDSMITH 22 July 1975 [23 July 1974] 30525/75 Heading G5J The movement of the surface of a timpano head is arrested by members 2 (Figs. 1, 2) remotely actuated by a foot control element 15. In the embodiment of Fig. 1 three concentric felt or foam covered discs 2 on a damping plate 1 are connected via a cable 4 to the foot control. The plate 1 is adjustable in the vertical and horizontal directions by, e.g. wing nuts movable in brackets 5, to which a sleeve, in which a shank 8 on the plate moves, is connected. The foot control has a rubber stop 16 connected to a lever arm 14 which moves the inner wire 17 of the cable 4 against the bias of a spring 13. In a second embodiment (Fig. 4, not shown) the plate is moved by the non-magnetic plunger extension (24) of a solenoid (23) and the foot control (21) is an electric switch. In a third embodiment (Figs. 5, 6, not shown) three electromagnets (26a, 26b, 26c) are secured to a brace (27) of, e.g. plastics material. Iron filings (29) impressed on adhesive tape (30) are glued to the top surface of the drum membrane above the magnets. Alternatively a vellum made of magnetic material could be used.
Patent GB-529705-A (GB)
Title: Improvements in or relating to apparatus for the suspension of aireraft driving mechanisms enclosed within a cowling
IPC: B64F5/50
Filed: 1938-10-22
Abstract: 529,705. Aircraft engine cowlings. BRANDENBURGISCHE MOTORENWERKE GES. Oct. 22, 1938, No. 30602. Convention date, Oct. 23, 1937. [Class 4] Apparatus for suspending or hoisting a cowled aircraft driving mechanism comprises means attached to the driving mechanism adapted to be extended through apertures in the cowling for connection to the crane hook. As shown, cables or bars 3, attached to a radial engine, are provided with pivotal eyes 4 supported by springs 6 from a plate 5 carried by the engine and forming part of the frame of the cowling. The eyes 4 can be swung out through apertures in the cowling normally covered by flaps 7. The parts of the cowling are hinged to the frame 5 by hinges 8, which may have detachable pins, so that access to the engine may be obtained while it is still suspended. In a modification wherein the cowling is in two parts hinged along a fore and aft line, the eyes 4 pass through slots extending across the hinge line and normally rest upon the hinge pin which passes through the eyes.
Patent GB-1079867-A (GB)
Title: Apparatus for cleaning tanks
IPC: B05B3/04
Filed: 1966-07-07
Abstract: 1,079,867. Cleaning tanks. M. A. SAAD. July 7, 1966 [Oct. 18, 1965], No. 30629/66. Heading A4F. [Also in Division B2] A device for washing tanks comprises a housing 10 rotatable about a vertical axis relatively to a coupling member 16 by which a liquid supply pipe is fixed to the device, and a nozzle head 19 mounted on the housing 10 and rotatable about a horizontal axis. The housing 10 and the nozzle head 19 are rotated by a turbine 29 through driving means similar to that described in Specification No. 1,031,557 except that the head 19 is connected by a clutch to a bevel gear 24 of the drive and is freely rotatable on the housing 10 when liquid is not supplied thereto. When liquid is supplied the liquid pressure applied to the head 19 frictionally engages a groove 22a in a flange 22 thereon with clutch plates 21 secured to the bevel gear 24.
Patent GB-426276-A (GB)
Title: Improvements in or relating to circular knitting machines of the double axially opposed needle cylinder type
IPC: D04B9/10
Filed: 1933-11-04
Abstract: 426,276. Knitting-machines. SPIERS, Ltd., W., Walnut Street, Leicester, and KENT, A. W., Switliland, Leicester Road, Groby, near Leicester. Nov. 4, 1933, No. 30696. [Class 74 (ii)] Circular machines.-In a machine with axially opposed needle cylinders 1, 2 and yarn feeding means and knitting cams at a plurality of points as A, B, a rotary patterning device 11 having radially and longitudnally movable selectors 52 is provided at one or more of the feeds, said selectors automatically dividing and controlling the needles in either or both cylinders so that needles knit at different points and needles which knit at one point do not knit at the other point or points. As shown, pins 58 in a pattern drum 57 project cam levers 56 which engage butts 53 at different heights on the selectors 52. As the selector drum 51 rotates, the selectors 52 are lowered by the fixed cam 59 and raised by the fixed cam 66. Any selector 52 not pushed in by its cam 56 will at the point 11<a>, Fig. 3, depress a jack 7 and the corresponding slider 6, the butt of which passes through the clearing track 25 to the lower cam path 24. The jack is immediately raised by the part 21 of an auxiliary cam 34 in the same box as but above the main knitting cam, and the upper end of the jack passes behind a half ring 12 with a cam leading end 12a in the same cam box above the cam 34. In this position the upper 9 of the two butts of the jack is held out of action. The unselected jacks are engaged by the cam end 12<a> of the ring 12 and rocked to bring their butts 9 into action. The selected needles are lifted by the cam 27 and knit at the feed A but their butts pass along the track a<5> and do not knit at the feed B. The butts of the unselected needles pass along the track c. At the point c<1> the part 14 of the auxiliary cam 34 depresses the unselected jacks and needles so that the butts of these needles pass through the space 39 to be acted on by the cam 33 and thus knit at feed B. A cam 15 radially depresses the unselected jacks into position for reselection. The selector drum 51 is mounted on the drive shaft 60 for the upper cylinder 1 and is capable of slight angular adjustment thereon. The pattern drum 57 is driven by pawl and ratchet mechanism 92 and a cam 64 on the needle cylinder 1. This drive can be held out of action automatically by means of a pattern controlled lever 100 which may at the same time lower a cam, (not shown), immediately below the cam 59 for retracting all the selectors 52 and thus annulling the action of the whole patterning device 11. Striping attachments may be provided at the feeds, The cams are arranged to permit reciprocation of the cylinders for making heel pockets, &c.
Patent GB-1430119-A (GB)
Title: Cathode ray tube devices
IPC: H01J29/81
Filed: 1973-06-28
Abstract: 1430119 Cathode-ray tubes RCA CORPORATION 28 June 1973 [28 June 1972] 30744/73 Heading H1D [Also in Division H4] In a cathode-ray display tube having a pastdeflection focus grill 30 formed of parallel conductive elements adjacent a phosphor screen 26, e.g. a colour television tube having three guns and a phosphor strip screen, compensation for the variation of focusing which occurs between different vertically spaced regions of the screen is effected by the use of a modulated grill voltage (Fig. 5, not shown) of parabolic form and having a period equal to that of the vertical scan, and which may, as shown, be derived from the vertical scan oscillator 62. Defocusing at the outer side edges of the screen, resulting from the effect of the modulating voltage, on the electron trajectories, is prevented by applying the modulating voltage to the centre member of the grill via line 50, maintaining the two outer edges of the grill at a constant potential, and connecting successive adjacent grill elements to one another through successive taps on resistors 64 and 66. Alternatively, the resistors may extend only part-way to the edges of the grill (Fig. 3, not shown), the remaining outer members being started together. The resistors 64 and 66 may be uniform or non- uniform, and formed by resistive material incorporated in the glass frit seal between the funnel 18 and the faceplate 16, in which seal the ends of the grill elements are embedded.
Patent GB-650295-A (GB)
Title: Improvements in or relating to continuous rod cigarette making machines
IPC: A24C5/32
Filed: 1948-11-26
Abstract: 650,295. Cigarette-making machines. MOLINS, D. W., RUAU, F. F., and MOLINS MACHINE CO., Ltd. Nov. 26, 1948, No. 30745. [Class 130] In a continuous-rod cigarette-making machine an ejector 10 is provided, just beyond the rotating disc 2 which spaces the cigarettes 3 apart after they are cut from the rod, for ejecting incorrectly sized or spaced cigarettes. In Fig. 2 the ejector 10 comprises a rotating blade of a width which just passes through the space between correctly spaced cigarettes, and in a modification, Fig. 1, the ejector comprises a plate 4 which follows an elliptical path, passing between the cigarettes 3 on its forward stroke and over them on its return. The cigarettes pass to a deflector drum A having means for rejecting any small-sized cigarettes which are not rejected by the ejector 10. The drum comprises blades 12 which sweep the cigarettes off the moving tape 1 and carry them round between guide plates 16, spaced apart a distance equal to the correct length of the cigarettes. Rails 14 retain correctly-sized cigarettes whilst smaller-sized cigarettes fall into a waste box.
Patent GB-1133788-A (GB)
Title: Improvements in electric terminals
Inventor: BUTCHER ERIC JAMES
IPC: H01R4/32
Filed: 1966-07-08
Abstract: 1,133,788. Electric terminals. J. A. CRABTREE & CO. Ltd. 20 June, 1967 [8 July, 1966], No. 30768/66. Heading H2E. In a pillar-type electric terminal 1, having a lateral clamping screw 5, the bore 2 is formed with a helical thread 3, the crests of the helix penetrating the oxide film of an aluminium conductor inserted in the bore. The crests may be flattened (Fig. 2, not shown), and the bore may have annular ribs (9, Fig. 3, not shown).
Patent GB-524011-A (GB)
Title: Manufacture of derivatives of sulphanilamide of therapeutic value
IPC: C07C311/37
Filed: 1938-10-25
Abstract: 524,011. Sulphonamide derivatives. GREEN, A. G., and COPLANS, M. Oct. 25, 1938, No. 30771. [Class 2 (iii)] Ethyl-alpha-sulphonates of sulphanilamide are made by reacting sulphanilamide with an acetaldehyde bisulphite. In an example, the sodium salt of the formula NH 2 .SO 2 .C 6 H 4 . NH.C 2 H 4 :SO 3 Na is made by reacting sulphanilamide with acetaldehyde and sodium bisulphite. The products have therapeutic properties. Specifications 293,617, [Class 2 (iii)]. and 470,462 are referred to.
Patent GB-1505332-A (GB)
Title: Vinyl(thiono)(thiol)phosphoric(phosphonic)acid esters and their use as insecticides acaricides and nematicides
IPC: C07F9/38
Filed: 1976-07-23
Abstract: 1505332 Unsaturated phosphorus-containing esters BAYER AG 23 July 1976 [26 July 1975] 30831/76 Headings C2P and C2C The invention comprises compounds of the general formula in which R, R 2  and R 3  are each C 1 -C 6  alkyl, R 1  is C 1 -C 4  alkyl, C 1 -C 6  alkyl thio, or phenyl, and X is O or S. They are obtained by reacting an ester halide: (RO)(R 1 )P(X)Hal, where Hal is halogen, e.g. Cl, with an ester derivative of the formula in which M is H or an equivalent of an alkali metal, alkaline earth metal or ammonium, if appropriate in the presence of an acid acceptor and/or a solvent or diluent. The products have insecticidal, acaricidal and nematicidal properties and may be used as active ingredients in conventional pesticidal compositions. The ester derivatives of formula which may be used as starting materials and wherein R 2  and R 3  are as defined above may be obtained by condensing a 1-alkoxy-acetic acid alkyl ester with a corresponding formic acid alkyl ester and examples are given for preparing various specified esters of the defined type.