baber/WOPTO huggingface dataset:
Patent GB-1086016-A (GB)
Title: Improvements in or relating to broad-band amplifiers
IPC: H03F3/40
Filed: 1966-04-01
Abstract: 1,086,016. Amplifying circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 1, 1966 [April 6, 1965], No. 14571/66. Heading H3W. The invention relates to a direct-current amplifier of the type in which drift in a main amplifier 1 is prevented by means of a potentiometer R2, R1 connected on the one hand to the input of the main amplifier 1 and on the other to its output, via an attenuating network 7. The arrangement is such that in the absence of drift no potential appears at point A in the potentiometer; if drift occurs, however, there is a voltage which is fed back into the main amplifier 1 via an auxiliary amplifier 8, which may be of the " chopper " type, including demodulator 9, so as to correct for the drift. If such an arrangement is used for amplifying an A.C. voltage which is superimposed on a D.C. component, by switching a blocking capacitor C 1  between the source E and the amplifier input, leakage over the leakage resistance R of the capacitor C 1  can produce such a D.C. input to the amplifier as to cause overload or excessive zero shift in an oscillograph 6 connected to the output. To prevent this, a further capacitor C2 is switched in series in the lead between the amplifier input and resistor R2, the feedback network then acting to reduce any D.C. component in the output of the main amplifier to zero.
Patent GB-1020542-A (GB)
Title: Improvements relating to the closuring of containers
Inventor: BRUUN OTTO JOHANNES
IPC: B65B7/28
Filed: 1962-04-16
Abstract: 1,020,542. Sealing containers. MONSANTO CHEMICALS Ltd. June 21, 1963 [April 16, 1962; May 10, 1963], Nos. 14577/62 and 18560/63. Heading B8C. [Also in Division B5] A closure of plastics film 16 is shrunk about and welded to the mouth-defining rim 14 of a container. The film and the container may themselves be of materials which will weld together, or one or both of them may be coated with such materials. In the machine illustrated a container 12 is positioned below a vertically movable head, which engages a film-carrying frame 15 and presents the film 16 to the container rim 14. Continued downward movement of the head causes a fluted shrinking ring 8 to push and shrink the excess portion of the film over the rim, a spring urged member 10 to clamp the film against the rim, and an annular welding ring 9 (Fig. 2, not shown) to contact and weld the film to the periphery of the rim. The member 10 is heated by heat radiated by rings 8 and 9, and when in contact with the film causes it to become taut. The head may be adapted to fit any shape of container. Alternatively the head may remain stationary and the containers may be moved upwardly into the  head. The containers may be provided with an outer lid of polyethylene or aluminium foil.
Patent GB-130196-A (GB)
Title: Improved Fastening for Necklaces, Bracelets and other Articles.
Inventor: KING JOHN RUSSELL
IPC: A44C11/02
Filed: 1918-09-09
Abstract: 130,196. King, J. R., and King, F. E. Sept. 9, 1918. Catches, spring.-A jewellery snap of the spring tongue and socket type has provided in the socket portion b a sliding piece c having a central aperture c<1> adapted to receive the spring tongue a, bv means of which the catch can be released. The sliding piece c is connected to one end of the bracelet &c. A modification is shown in which the catch-piece a has two spring tongues a<1>.
Patent GB-317743-A (GB)
Title: Vehicle brake mechanism
IPC: F16D65/22
Filed: 1928-05-18
Abstract: 317,743. Pullin, C. G., and Groom, S. L. May 18, 1928. Blocks acting on drums; fluid-pressure; compen-sating for wear.-In vehicle brake mechanism of the kind in which the pivots of the shoes are at one end constituted by their engagement with a fluid-pressure applying device 4 and at the other end by an alternative applying device such as a cam 5 moved mechanically, this latter device also forms the clearance adjustment for the adjacent ends of the shoes. This adjustment comprises a screw 20 bearing against the cam actuating arm 19. An automatic adjustment is provided in the fluid-pressure mechanism and comprises a split-ring 23, Fig. 2, mounted in buttress section-grooves 27 in a reduced part of the fluidpressure piston 12. This ring engages in an annular recess 29 in the cylinder end cap 26 so as to allow the piston normal brake applying movement until the brake lining wears when the increased movement of the piston causes the ring to engage the outer edge of the recess and the ring is forced into the next groove. The end wall 32 of the end cap 26 is detachable to allow mounting of the ring 23. In Fig. 1 the end cap 26 is screwed on the outside of the cylinder and the recess 29 is formed by the outer end wall of this cap and a washer 34. The shoes at their middle point are mounted on radially-acting pin- and-slot mechanism 8. Specification 317,520 is referred to.
Patent GB-695621-A (GB)
Title: Improvements in and relating to reservoir writing instruments
Inventor: FEHLING HANS REINHARD
IPC: B43K7/08
Filed: 1947-06-03
Abstract: 695,621. Reservoir pens. COMPANIA URUGUAYA DE FOMENTO INDUSTRIAL SOC. ANON. Sept. 28, 1948. [June 3, 1947] No. 14664/47. Class 146 (iii). In a ball-point pen having a reservoir in the form of a vented tube 3, at the end of the ink column 11 remote from the ball a meniscus-forming medium 12 is provided which forms a continuation of and is of greater viscosity than the ink column, and is such that it forms a stable meniscus at the interface between it, the air and the interior surface of the tube without offering so great a resistance to flow as to prevent an adequate supply of ink to the ball during writing. The medium may be an ink or colourless and preferably does not affect textiles so as to minimise inconvenience to the user if leakage occurs. Further, it may have the same density as the ink 11. Suitable mediums are silicon fluids, a highly concentrated solution of colophony in ricinoleic acid, highly refined mineral oil sold as N.P.L. calibration oil, silicon greases, soft petroleum jelly and some colloidal solutions of long-chain polymers in organic solvents. A follower 14 such as is described in Specification 688,891 may be provided and may be arranged to float on the medium or on the ink column. Specifications 571,698, 573,747, 629,226, 629,283, 634,564, and 695,673 also are referred to.
Patent GB-823691-A (GB)
Title: Folding structures such as chairs and stays therefor
Inventor: RASSIER CECIL ARTHUR
IPC: A47C5/10
Filed: 1955-05-21
Abstract: 823,691. Ladders. SEBEL & CO. Ltd., D. Jan. 11, 1956 [May 21, 1955], No. 14723/55. Class 20(2) [Also in Groups XIV and XXV] The legs of a step-ladder are connected by a jointed folding stay comprising bars 19, 21 pivoted together at 23, the bar 19 carrying a pivoted latch for engaging the pin 22 to lock the bars in alignment. The bar 19 is of channel section.
Patent GB-693797-A (GB)
Title: Building block
IPC: E04B2/46
Filed: 1951-06-21
Abstract: 693,797. Building blocks. MINT, C. S DE. June 21, 1951, No. 14782/51. Class 87 (i) An apertured block is provided in one wall 4 with a gap 8 of a width to receive the side walls 2, 3 of interlocking blocks, and spaced ribs 6 are formed on the inner faces of the walls 2, 3 to receive the free ends of the walls 4 of interlocking blocks. The blocks which may be of glass, plastic or cement, may be lined with ceramics, wood or metal.
Patent GB-475933-A (GB)
Title: Improvements in spring hinges applicable to clips, cigarette case lids and the like
IPC: A44B9/18
Filed: 1936-05-25
Abstract: 475,933. Brooches. MALLETT, F. N. May 25, 1936, No. 14786. [Class 43] [Also in Group XXV] A spring hinge comprises a member a with a channel a<1> housing a bowed spring d and having end closures a<2> supporting a hinge pin b on which a second member e is mounted, member e having a co-operating cam portion c which substantially closes the mouth of the channel and protects the spring. As shown, portion c is shaped to give a snap-over engagement with the spring so that the parts a, e are held in both the open and closed positions. Alternatively, the part c<1> may be shaped so that the spring holds the parts in closed position only. Fig. 4 shows a brooch comprising a symmetrically shaped pair of clips a, e removably secured to a frame f by passing the parts e through apertures therein and then snapping said parts into contact with the parts a. Frame f is provided with a brooch-pin i, or a spring clip.
Patent GB-239938-A (GB)
Title: Improvements relating to signs
IPC: G09F7/22
Filed: 1924-06-19
Abstract: 239,938. Wood, G. L. June 19, 1924. Radial elements, oscillating; actuating. - A wind operated sign having moving objects functioning in a light breeze has means to prevent damage resulting from a high wind. A member A carrying the objects is pivoted at J, J to a support D from which extends an operating member B actuating the objects on the swinging member A. through pawl, ratchet, pendulum, or other mechanism. The support D is in turn hinged to a fixed bracket H and is normally stationary, but under pressure from a strong wind it moves about its hinges F, G. Stops C on the support D limit the relative movement of the member A. The sides of the hinge eyes G taper towards each other to form wedges in which the pins F frictionally bear.
Patent GB-1378964-A (GB)
Title: Pyridine derivatives
IPC: C07D401/06
Filed: 1972-03-29
Abstract: 1378964 Piperazinoyl-pyridines EGYT GYO - GYSZERVEGYESZETI GYAR 29 March 1972 [31 March 1971] 14887/72 Heading C2C Novel compounds (I) (including salts thereof) where R<SP>1</SP> is H or Me, R<SP>2</SP> is H, an alkali metal atom, optionally hydroxy substituted C 1-3  alkyl or optionally halogen substituted benzyl and A signifies -(CH 2 ) n  where n is 0 or 1 are made by standard methods of acylation; compounds (I) can, if desired, be converted one into the other by standard methods. Pharmaceutical preparations showing antidepressant action contain (I) as active ingredient; administration is orally, rectally or parenterally.
Patent GB-149815-A (GB)
Title: Improvements in or relating to fasteners for belt joining
IPC: F16G3/08
Filed: 1919-06-13
Abstract: 149,815. Williams, T. June 13, 1919. Rivets.-Belt fastening-plates have holes 2 for rivets, which are elongated transversely of the belt. The rivets 3 correspond in section and are formed so that they must open out transversely of the belt. The heads of the rivets 3 have flat sides 6, Fig. 1, to facilitate removal.
Patent GB-1068011-A (GB)
Title: Fuel-flow regulating device
IPC: F23D11/46
Filed: 1964-04-10
Abstract: 1,068,011. Supplying fuel to burners. SOC. ANON. LA COMBUSTION GENERALE MODERNE. April 10, 1964 [April 10, 1963], No. 14928/64. Heading F4T. The flow of liquid fuel to a vapour burner 25 is controlled by adjusting the level of the fuel in a container 3. The fuel is supplied to the container from a tank 1 by a pump 2 and fuel returns to the tank 1 through an overflow pipe 12 fed by a rod 4 having a radial inlet passage 6 which determines the level of the fuel in the container, and an axial passage 4a. The rod 4 is vertically slidable in the overflow pipe 12 and has a pin 8 which engages a cam 7 so that rotation of the rod by a control member 27 raises and lowers the rod. The flow of fuel to the burner is also controlled by a plug 17 having a circular groove registering with a passage 16 between a compartment B and a compartment C in the container. The plug is urged upwardly by a spring 19 into abutment with a member 18 adjustably screwed into the casing of the container. The member 18 can be rotated by using as a handle a pointed screw 24 screwed through a ring 23 on the member 18. The plug 17 can also be moved by a knob 21. The container has a third compartment A into which the fuel is delivered by the pump and from which it overflows into the compartment B. In a second embodiment, Fig. 4 (not shown), the level of fuel in the container is determined by a needle valve controlling the inlet to the container and actuated by a float containing a pressure spring acting between the bottom of the float and a rod adjustably mounted in the top of the container in a manner similar to the rod 4 of the first embodiment. Increasing the spring pressure raises the level of the fuel. The fuel flow to the burner is also controlled by an adjustable plug 17 as in the first embodiment.
Patent GB-257997-A (GB)
Title: Improvements in and relating to steam generators
IPC: F22B13/12
Filed: 1925-06-09
Abstract: 257,997. Thom, R. A., and Thom, J. June 9, 1925. Furnace fronts; casings.- A locomotive firebox of the water-tube type has a hollow back wall 11, serving as a feedwater heater. In a firebox having upper collector drums 1 and a steam drum 2 opening into the barrel of the boiler, as described in Specification 222,897, [Class 123 (ii), Steam generators], the rear ends of the drums are secured to the firebox back plate 9, which is protected from the direct action of the furnace gases by the hollow wall. The ends of drums have detachable covers 1<a>, 2a. The front wall 8 and, if desired, the inner plate 14 of the hollow back wall are protected by fire brick slabs 12 and asbestos sheeting 13. Water flows into the hollow wall from the supply pipe 20 through a pipe 15. A pump 17 supplied water through a pipe 16 when the water level is not maintained in the heater by the supply through the pipe 15. Heated water is taken off through a pipe 21 to the boiler injector or feed pump. A loaded valve 26 in a pipe 27 leading bach to the feed tank prevents the pressure in the heater from rising above a certain point, say, 7 pounds per sq. inch.
Patent GB-239624-A (GB)
Title: Improvements in supports for vehicle wheel mud guards
IPC: B62D25/16
Filed: 1924-06-21
Abstract: 239,624. Bluemel, F. H., and Bluemel Bros., Ltd. June 21, 1924. Mud-guards.-Stays f for the support of the mud-guard of a perambulator, bicycle, or other vehicle are connected to a clamp comprising two members a, b which are held together by studs or bolts h and hold between them a sleeve i fitting upon a wheel axle. As shown, the members are formed of sheet metal bent to form box-like structures, and the studs or bolts are held in the member a by engagement of the bolt heads g in slots and of the shanks in embossed or enlarged parts a<1> in opposite walls of the member. The sleeve may be split or divided and may be held against axial movement by shoulders j at its ends.
Patent GB-587130-A (GB)
Title: Improvements in moulds for casting hollow building blocks or slabs
IPC: B28B7/18
Filed: 1944-08-08
Abstract: 587,130. Moulds for building blocks. CREEDON, C. J. Aug. 8, 1944, No. 15023. Convention date, Oct. 11, 1943. [Class 87 (ii)] A mould for hollow building blocks has one side wall 13 hinged with respect to the bottom 11 of the mould and carrying cores 18 which extend into proximity with the opposite side of the mould so that after casting and turning the wall 13 down the block is removed from the mould to a vertical position on the cores 18 from which it may then.be stripped. The cores are mounted on a carrier 17 sliding in a channel in the wall 13 so that they may be partially withdrawn from the block by turning the threaded bolt 22 engaging the carrier, prior to turning down the side wall. The other walls 14, 15, 16 of the mould may also be hinged to the base and are provided with projections 26a and recesses 26 and 27 to form tongues and grooves in the edges of the moulded block. Additional core pieces 25 are provided to cooperate with the main cores when the mould is closed. The base of the mould may incorporate a hinged flap 11a operated by a finger 23 underneath the wall 15 whereby the block is partially ejected when the wall 15 is turned down. Apertures 30 in the walls 14 and 16 and cores 18 may be provided to accommodate additional cores which are removed before stripping the block from the mould. In a modification not illustrated, the bolt 22 is replaced by a U-shaped member the ends of which are secured to the carrier 17 and the loop of which extends through a slot in the wall 13. Compression springs are interposed in the space 13a. On turning down the wall 13 by means of a lever inserted in the loop of the U the cores are simultaneously partially withdrawn from the moulded block. Specification 114,279, [Class 87 (ii)], is referred to.
Patent GB-169757-A (GB)
Title: Improvements in or relating to leggings or the like
IPC: A41D17/02
Filed: 1920-06-02
Abstract: 169,757. Chamberlin, F. G. June 2, 1920. Leggings.-A shaped legging A, having an upper fastening F, G, has one end of a band C attached to the lower part of the overlapping edge B, the band having at its free end a fastening- strap C' and buckle C<2>. The angle between the edge B of the legging and the band C is filled in with a triangular piece D, of thinner material, extending from the top of the legging and secured to the upper edge of the band C. The band, as shown in Fig. 2, is curved and its upper edge is tapered slightly near its junction with the legging. A modification is described in which the piece D is formed integral with the body A of the legging and constitutes an extension of the overlapping edge B.
Patent GB-256190-A (GB)
Title: Improvements in or relating to the atomisation and desiccation of liquids or solutions
IPC: A23C1/04
Filed: 1926-06-15
Abstract: 256,190. NestlÚ & Anglo-Swiss Condensed Milk Co., (Assignees of Stousland, G. J.). July 29, 1925, [Convention date]. Spray evaporators. -In drying milk or other liquids, the liquid supplied through a pipe 3 is atomized by a jet of hot air or other gas issuing from a tube 1, which is surrounded by a tube 2 through which a current of air or gas at a lower temperature is forced or drawn so as to surround the jet of hot air. Air or gas is forced through a pipe 7 or is drawn through it by maintaining a reduced pressure in the drying chamber 8, and passes over a cdil 5 through which a heating or cooling medium is passed.
Patent GB-402425-A (GB)
Title: Improvements in or relating to internal combustion engines provided with slow-running or idling devices
IPC: F02M3/06
Filed: 1932-05-27
Abstract: 402,425. Spray carburetters. TRICO PRODUCTS CORPORATION, 817, Washing- ton Street, Buffalo, New York, U.S.A. May 27, 1932, No. 15413. Convention date, Dec. 28, 1931. [Class 7 (iii).] Stalling of an engine during idle running is prevented by means associated with the throttle valve and actuated by the pressure on the engine side thereof, in such manner as to cause additional combustible mixture to be admitted to the engine on the occurrence of an abnormally high pressure in the manifold. A butterfly throttle 3 is actuated through a rod 8 attached to an arm 5, a projection 7 from which is adapted to engage a stop 4 to limit the normal idling opening of the throttle. The arm 5 is also formed integrally with another arm against which bears a pin 13 adapted to be actuated by a spring-loaded flexible diaphragm forming the cover of a chamber 9 the underside of the diaphragm being in communication with the manifold 2 above the throttle through a pipe 10. When the engine is at rest, the pin 13 advances the throttle slightly from idling position but the pin is lowered slightly as soon as the engine starts. Any increase of pressure in the manifold, due to stalling of the engine, causes the pin to rise and open the throttle slightly. The upward movement of the pin is limited by an adjustable stop 14. The loading spring is adjustable by a screw 16.
Patent GB-185073-A (GB)
Title: Improvements in ammunition receptacles
IPC: F42B39/02
Filed: 1922-05-30
Abstract: 185,073. Ross, C. J. May 30, 1922. Ammunition receptacles.-A pouch A for clips F<1> of cartridges is provided at each side with spring clips E for gripping the end cartridges F of each clip. The pouch is made as usual with a cover flap B secured by a press-button fastener A<1>, and has a back-piece C stitched at C<1> to the back of the pouch and secured by a pressbutton fastener A<2> for attaching the pouch to a belt D.
Patent GB-845767-A (GB)
Title: Apparatus for wrapping confectionery, for example chocolates
Inventor: HANSEL OTTO
IPC: B65B11/44
Filed: 1957-05-14
Abstract: 845,767. Wrapping machines. HANSEL G.m.b.H., O. May 14, 1957, No. 15208/57. Class 94(1). A chocolate packing machine comprises a rotating table 1 provided with concentric rings of chocolate containing openings 2, 21, a pair of simultaneously operating lifting devices 6, 6<SP>1</SP> which feed the chocolates from openings 2, 21, together with wrapping material, to folding mechanism (not shown), and two sets of grippers 12 which transfer the partly wrapped chocolates to sets of twisting devices 8, 13 which complete the wrapping, and is characterised in that the sets of grippers are mounted on endless chains (not shown), which move in relatively inclined planes A, B thereby allowing devices 8, 13 to be spaced apart by a distance greater than the spacing of the rings of openings 2, 21. In a modification one end only of the wrapper is twisted, the other end being closed by folding.
Patent GB-1530543-A (GB)
Title: Drive shafts
IPC: F16C15/00
Filed: 1977-04-13
Abstract: 1530543 Shafts UNION CARBIDE CORP 13 April 1977 [14 April 1976] 15246/77 Heading F2U A tubular drive shaft for a vehicle transmission comprises layers of carbon fibres in a solid resin matrix, the fibres in the inner and outer layers being substantially circumferentially disposed at an angle of 85 to 90 degrees to a line parallel with the axis and the fibres in at least four of the intermediate layers being helically disposed at an angle of 15 to 50 degrees to a line parallel with the axis with the fibres of each successive helical layer crossing those of the previous helical layer at an angle of 30 to 90 degrees. Formula are given to achieve the required noise and vibration damping characteristics. The resin used may be phenolic, epoxy or polyester. If desired, fibres of glass, boron or polyamide may be admixed with the carbon fibres or employed in separate layers. Moreover, one or more intermediate longitudinal or circumferential layers may be employed as well.
Patent GB-372959-A (GB)
Title: Improvements in and relating to racks for use in storing cycles
IPC: B62H3/04
Filed: 1931-05-23
Abstract: 372,959. Cycle stands. PARKES, S. R., Pretoria Works, New Road, Willenhall, Staffordshire. May 23, 1931, No. 15251. [Class 136 (i).] A rack for storing cycles is formed wholly of metal and comprises a number of spaced dividing-frames or partitions, each of which is formed of parts 1, 2, made, for example, of channel-sectioned sheet metal, connected together at 3, 4 by brackets or lugs to form a unit, such flat units being readily separable to facilitate transport &c. The flat frames are spaced apart in pairs, to receive the cycle wheels between them, by two standard lengths of tubular distance pieces 10, 11, a larger space being left between the pairs, and coupling- bolts of three standard lengths are passed through the distance pieces. Alternate pairs of frames are provided with inclined guideplates 9 removably fitted on the distance pieces and adapted to raise the cycle wheel, so that alternate cycles are stored at a higher level to prevent fouling of the handle-bars.