baber/WOPTO huggingface dataset:
Patent GB-199767-A (GB)
Title: Improvements in oil switches and fused switches
IPC: H01H3/30
Filed: 1922-02-27
Abstract: 199,767. Dobson, E. Feb. 27, 1922. Oil switches; bases, boxes, and cases; switch mechanism interlocking with lids. - A quick make-and-break switch with mechanism of the type described in Specification 166,592 has its fixed and movable contacts immersed in oil, the movable contacts h' being movable on that side of the fixed contacts remote from the supporting lever. The contacts h<1> co-operate with pairs of fixed contacts h and are secured to insulating supports mounted in a U lever t the upper ends of which are pivoted at l<2> to a U-shaped lever l pivoted at l<1>. The link t is guided by a link o attached at and normally pivoting at q. The pivot c<2> is connected by the spring m to a crank n on the shaft of the operating handle d so arranged for ensuring quick action of the type referred to, projections d<2>, d<3> being carried by the operating spindle to ensure positive actuation. The contacts h pass through insulators e<1>, g<1> mounted in a frame c to terminals e, g, those connected to the incoming leads b being stretched by an insulating barrier f. The switch is mounted within an oilcontaining vessel a with a hinged lid b having a projection b<1> to prevent, its opening with the handle d in the closed position. Adjacent pairs of fixed contacts h are connected by fuses k and to facilitate their replacement the link o has a slot p, the enlarged head q of a pin q<1> controlled by a spring r normally ensuring that the link o pivots at the enlarged end s of the slot p. If the handle o<1> at the free end of the link o is depressed laterally with the switch in the open position, the fuse carriers can be swung upwards as shown about the pivots l<2> where they are easily accessible, the pin q moving along the slot p in the link o.
Patent GB-131054-A (GB)
Title: Improvements in or relating to Telephone Installations particularly for Wireless Telegraphy.
Inventor: BRILLOUIN LEON NICHOLAS
IPC: H04B1/22
Filed: 1918-04-05
Abstract: 131,054. Brillouin, L. N. Oct. 8, 1917, [Convention date]. Wireless telegraphy.-In telephone receiving-apparatus, particularly for wireless telegraphy, employing a series of thermionic valves as described in Specification 127,014, various connexions including capacities and resistance are made between the electrodes of the valves, with the object of obtaining selective amplification only for a given frequency or range of frequencies. The apparatus may also operate as an oscillation-generator. Fig. 1 shows a system with four valves arranged and connected as shown in Fig. 1 of the above-mentioned Specification, with the following additional connexions. One of the electrodes, grid or plate, of one of the valves, for example the plate a<1000> of the first valve a<1>, is connected by a condenser m to one of the electrodes of another valve, for example the plate a<3000> of the third valve a<3>. The strength of the amplified oscillations increases as the capacity m is increased. The wave-length to which the apparatus resonates varies directly with (1) the value of the resistances h<2>, h<3>, (2) the capacities of condensers s<2>, s<3> inserted between grid and plate of the intermediate valves a<2>, a<3>, (3) the capacities of condensers t<2>, t<3> shunting the resistances h<2>, h<3>, (4) the capacities of condensers u<1>, u<2>, u<3> shunting the resistances d<1>, d<2>, d<3>, (5) the value of resistances w<2>, w<3> placed between the plates of the valves a<1>, a2 and the connecting- condensers f<2>, f<3>, (6) the value of a resistance y placed in series with the condenser m, (7) the value of the capacities f<2>, f<3>, m. The wavelength for which the apparatus operates also varies according to the position of the valves to which the condenser m is connected. Thus, in an apparatus with seven valves, the wave-length is increased according as the plate of the first valve a' is connected to the plate of the fourth, sixth, third, fifth, or seventh valve. The apparatus may be tuned to amplify frequencies between two given limits without the use of the condenser m, bv first reducing the capacities of the coupling condensers f<2>, f<3> so as to exclude frequencies below the lower limit, frequencies above the upper limit being excluded either by the capacity shunts u<1>, u<3>, u<3>, t<2>, t<3> to the resistances d<1>, d<2>, d<3>, h<2>, h<3>, or by connecting the plates of one or more of the valves to the grids of the same valves by condensers s<2>, s3.
Patent GB-765555-A (GB)
Title: Improvements in or relating to display devices comprising display stands or carriers for goods or merchandise
Inventor: VAUGHAN-PARKS NORMAN CECIL
IPC: B65D71/62
Filed: 1953-03-03
Abstract: 765,555. Display cartons. SHIRLEY & WARBEY BOX CO., Ltd., [formerly SHIRLEY & CO., Ltd., R.L.]. March 3, 1954 [March 3, 1953], No. 5886/53. Class 18. [Also in Group XVIII] A display stand or carrier made of cardboard strawboard, sheet metal or like material is formed from a blank, Fig. 1, which is folded along a line 8 forming a handle or display portions 2, 4 with a body portion having a base 32, double end flaps 14, 16 and sloping side walls 10 having apertures to receive tho merchandise 54. Flaps 6 and 26 are cut from the blank to form the apertures, the flaps 26 being folded inwards or outwards to form shelves. The part 40 folds back along the line 38 to overlie the base for half its width and an extension 42 folding along the line 44 passes up between the flaps 6 and the parts 2, 4. The corners 46 of the extension 42 are cut away so that wire stitches 48 joining the parts 2, 4 leave the extension 42 free to slide between them enabling the display stand to be packed flat.
Patent GB-474416-A (GB)
Title: Improvements in or relating to writing appliances
IPC: B43K27/08
Filed: 1937-02-27
Abstract: 474,416. Writing-appliances. KOCH, A. Feb. 27, 1937, No. 5921. Convention date, March 2, 1936. [Class 146 (iii)] A writing-appliance is provided with a number of pens or pencils longitudinally displaceable in, and projecting longitudinally and laterally from, a common barrel, the projecting parts forming stops for the individual pens or pencils on the edge of the barrel. As applied to a pen, the appliance comprises an outer barrel a in which are frictionally mounted a number of nib-sections b of segment shape. Each nibsection carries a self-filling sac d and a protecting sleeve e, an enlargement k, which may be roughened to facilitate movement by the finger, being provided on the sleeve to limit the insertion of the individual holders into the barrel. The sac is adapted to be deflected by means of a U-shaped spring h one end of which is secured to the sleeve e. The sleeves may be rendered springy by a slot g.
Patent GB-200129-A (GB)
Title: Improvements in steam engines
IPC: F01L15/08
Filed: 1922-03-01
Abstract: 200,129. Watson, H. B., and Billetop, T. C. March 1, 1922. Slide valves, cylindrical and piston; slide valves, flat.-In uniflow engines such as described in Specification 171,748, [Class 122 (i), Engine and like cylinders &c.], the top and bottom ports C, D are controlled by a single admission valve F which supplies two streams of steam cut off by separate pairs of edges to each port. The valve heads f<1> have annular grooves f<2> and longitudinal bores f<4>. In the position of the valve shown in Fig. 1, steam passes from the inlet h<1> directly to the port C beneath the bottom edge of the collar f<3>, and through bores f<4>, grooves f<2>, past the top edge of the shoulder f<3> to the port C. In a modification, the liner G is cut away at the centre instead of at the ends to form edges to control the supply through the grooves f<2>. The flat valve, Fig. 2, has rectangular bars k<1>, k<2>, k<3> connected by recessed portions, and works beneath a spring-pressed block k<5> providing additional controlling edges k<8>, k<10>,
Patent GB-194918-A (GB)
Title: Improvements in and relating to hydrodynamic air or gas compressors
IPC: F03B13/24
Filed: 1922-03-01
Abstract: 194,918. Pellegri, G. di T. March 1, 1922. Wave energy, utilizing. -A wave-operated air or gas compressor comprises a vertical casing having an air-tight upper end, in which a column of water is supported by atmospheric pressure, the variations in the level of the column due to wave impulses operating the compressor. The operation is effected by a pisto in the column subject to the action of the water and connected to the piston of a compressor. A barometric vacuum is created in the top of the column by supplying water through a valve a and allowing air to pass out through a valve b, a valve at the bottom of the casing closed during the inflows of water being afterwards opened. Double-ended passages c, d are provided in the sides of the casing, their lower ends being about 10 metres above the level of high tide. A piston 2 in the casing is connected by its rod to the piston of a compressor cylinder; a layer of liquid over the compressor piston secures air-tightness. A siphon bend in the lower part of the casing well below water level prevents the entry of air and other foreign matter.
Patent GB-904293-A (GB)
Title: Improvements in or relating to devices for holding an insert member in a hollow body
IPC: B01D46/10
Filed: 1961-02-20
Abstract: 904,293. Filters. JAUME, R. Feb. 20, 1961 [Sept. 24, 1960], No. 6153/61. Class 46. [Also in Groups XXV and XXVIII] A filter includes a resilient ring 1a for securing it in a hollow body 2a, the ring having lugs 6a for engaging notches 8a or a groove in the body and projections 7a registering with the lugs and to which pressure may be applied for successively releasing the lugs from the notches. The ring, of natural or synthetic rubber, polyamide resin or polytetrafluoroethylene, is moulded around the fabric or synthetic resin filter element 9 (preferably of the same composition as the ring).
Patent GB-767307-A (GB)
Title: Improvements in or relating to sealing devices for electric plugs and sockets
Inventor: WEBB CHARLES DUNCAN HENRY
IPC: H01R13/52
Filed: 1954-03-03
Abstract: 767,307. Two-part couplings. PLESSEY CO.,'Ltd. March 3, 1955 [March 3, 1954; June 27, 1954], Nos. 6195/54 and 18514/54. Class 38(1). In a plug or socket connector wherein pin or socket contacts 6 are held in bores in an insulating block 5 contained in an internally flanged metal shell 1, the terminal ends of the pins are surrounded by a resilient block 7 which is compressed between the block 5 and a disc 8, and on to the connections between the terminal ends and leads 15, by a ring 10 screwed into the rear end of shell 1. The socket carries an externally screw-threaded coupling ring 11 fitted with an internal sealing ring 12.
Patent GB-471479-A (GB)
Title: An improved method of, and apparatus for, wrapping pipes
IPC: B65H81/08
Filed: 1936-02-29
Abstract: 471,479. Coating pipes. JACKSON, L. MELLERSH-. (Standard Oil Co. of California) Feb. 29, 1936, No. 6198. [Class 99 (ii)] A pipe 10 is coated with a thick seamless layer 20 of bituminous &c. plastic material by applying the latter to a portion of the width of a tensioned flexible tape 19 which is led through a shoot 11, fed with plastic material from an overhead hopper, and is wrapped around the helically-advancing pipe with its leading edge, which is free of plastic material, overlapping the trailing edge of the previous convolution, the base 14 of the shoot being spaced from the pipe a distance A equal to the desired thickness of plastic by a shoe 12. The shoot is provided as shown with a guide plate 16 which is stepped at 17 to leave a space 18 into which the leading edge of the tape is received and so kept free of plastic and is also so shaped at its inner edge 24 as to prevent the plastic in the shoot from contacting with the tape already wrapped. When the plastic has set the tape may be removed and a coating of lime wash applied. Specifications 354,803 and 354,844, [both in Group V], are referred to.
Patent GB-495933-A (GB)
Title: Method of and apparatus for effecting contact between a gas and a body of liquid
IPC: B01D3/18
Filed: 1938-02-28
Abstract: 495,933. Treating liquids with gases. FAIRWEATHER, H. G. C. (Chemical Construction Corporation) Feb. 28, 1938, No. 6283. [Class 55 (ii)] In apparatus for effecting contact between gas and liquid comprising a container 1 for vertical passage of gas with horizontal trays 2 retaining a uniform depth of liquid thereon, dams 14 with their upper edges relow the liquid surface extend from bubble caps 24 to the periphery of the container and the kinetic energy of part of the gas, i.e. gas rising through supplemental apertures 11, causes the liquid to flow in a closed circuit over the trays. A temperature-regulating coil 28 preferably surrounds a central bubble cap. The caps surmounting the supplemental apertures 11 comprise a dome portion 40 and a liquid conduit section made up of asymmetrically associated channel members 53 spaced to form restricted gas outlets 58, gaps being left for gas risers above the apertures 11, and the front and rear walls of the dome portion which extend down to the level of the members 53 at these places having similar gas outlet slots. As gas escapes therethrough the froth formed rises vertically against and over the dam 14, liquid thereupon flowing through the channel members 53 and over the dam to return to the other side of the tray around the bubble caps 24.
Patent GB-568560-A (GB)
Title: Improvements relating to hand cranks for elevating and training mechanisms
IPC: B66D1/06
Filed: 1939-02-25
Abstract: 568,560. Clutches. MECHANIZATIONS & AERO, Ltd., and LANDSTAD, H. F. Feb. 25, 1939, No. 6308. [Class 80 (ii)] [Also in Groups XXI and XXXI] Hand-cranks for elevating and training mechanisms comprise in combination a crankboss freely mounted on a bearing coaxially with the spindle to be actuated, a member on the spindle through which motion can be imparted to the spindle from the boss, and a catch movable relatively to such member and boss by the user for effecting or interrupting a driving connection between the member and boss. The spindle a to be actuated is mounted by ball bearings c in a cylinder b, which freely supports by ball bearings e a crank-boss d. On an arm f projecting from the crank-boss d is pivoted at g a hand-operated catch h, which is adapted to engage one of a series of peripheral. notches on a disc i, fixed to the spindle a, so as to provide a driving connection between the boss and spindle. The catch is held in its engaged or disengaged position by a bell-crank finger lever k pivoted on a pin p, the lower arm of the bell-crank lever k being adapted to engage one of a pair of notches m in the arm f, under the resilient constraint of a spring-loaded plunger n bearing on a flat o on the pivot pin p. In its disengaged position, the catch h engages one end of a slot q in the arm f through which the catch extends. The crank r, which may have two handles y, z, is removably inserted in a socket s in the arm f, and is secured therein by a cam or rotatable key t, adapted to engage a recess u in the crank and controlled by a finger lever v, which is held by a spring strip w.
Patent GB-564076-A (GB)
Title: Apparatus and method for the control of air flow through furnace tuyeres
IPC: F27B1/16
Filed: 1943-04-21
Abstract: 564,076. Tuyeres. FIFE, J. G. (Meehanite Metal Corporation). April 21, 1943, No. 6417. [Class 51 (i)] In cupola and like furnaces provided with a wind box 22, Fig. 1, supplying air to a number of tuyeres 30, the flow of air through the tuyeres is controlled by vane wheels 26 mounted in bearings 27, 28 and driven by the air flow. The speed of the vane wheels is controlled by rods 36 which are rotated by handles 38 to cause the screwed ends of the rods to frictionally engage with the vane wheel shafts 29. The vanes 40 of the wheels mav be parallel to the supporting shafts 29 or inclined thereto. In the modification shown in Fig. 9, the vane wheels 52 are mounted in guides and moved into and out of the tuyeres 30 by screwed rods 58 engaging, as shown in Fig. 12, with members 60 in which the shafts 53 of the vane wheels are mounted. The rotation of each of the vane wheels is controlled by screws 62 engaging with a spring 63 which presses a ball 64 against the shaft 53. The blades of the vane wheels may be curved or angular in crosssection. Fig. 17 shows a further modification in which the vane wheels 71 are mounted in L-shape tuyeres and pivotally mounted at 72 about which pivots they may be turned by levers 74 into the dotted line position so that the operator may observe the interior of the cupola through peep hole 78.
Patent GB-471530-A (GB)
Title: Improvements in exhaust pipes for internal combustion engines
IPC: F02B27/04
Filed: 1936-03-04
Abstract: 471,530. Exhaust pipes. TRIGGS, W. W. (Aktiebolaget Motorus) March 4, 1936, No. 6581. Drawings to Specification. [Class 7 (ii)] A diffuser-shaped exhaust pipe is made according to the formula where s is the variable cross-section at a distance x from the smallest cross-section 
o, 
max is the largest cross-section, and L is the length of the diffuser measured between the cross-sections so, 
max. The dimensions so, 
max, L are determined for a particular engine in accordance with piston speed, port area, number of cylinders, and firing order, formulµ being given for this purpose. The diffuser-shaped pipe may be connected to cylindrical pipes at either end and its distance from the exhaust valves may be varied.
Patent GB-306974-A (GB)
Title: Improvements in containers for inflammable products such as liquid fuels, and a method of protecting said containers
IPC: B64D37/06
Filed: 1929-02-28
Abstract: 306,974. Boyron, G. Feb. 28, 1928, [Convention date]. Tanks. - Containers for inflammable or ex- ,plosive substances are provided with an internal coating, comprising a layer 1 of cork or agglomerated fibres, a layer 2 of a composition comprising glycerine, gelatine, fish glue, glucose or treacle &c., e.g. a composition such as is used for printing rollers, and a layer 3 of thin sheet metal or foil. The layer 2 may have a. fabric, wire, or other reinforcement embedded therein. The container may have partitions Pa, Pb, preferably diagonally arranged, which may be coated with gelatinous composition, or may be hollow and filled with cork &c. coated with gelatinous composition.
Patent GB-648361-A (GB)
Title: Improvements in or relating to adjustable set squares
IPC: B43L13/00
Filed: 1948-03-03
Abstract: 648,361. Hinges. DARGUE, A. W., and DARGUE. E. L. March 3, 1948, No. 6619. [Class 65(ii)] [Also in Group XX] An adjustable blade b, Fig. 1, is attached to a set-square a by means of a pivot member comprising a disc e having a portion overlying the square and secured thereto by rivets g the disc being contained within a ring member d having a portion overlying the blade and secured thereto by rivets f. The disc e may be provided with a radial aperture e' and forced into a close fit with the inner wall d' of the ring member d by means of a tapered nut h, Fig. 2, engaging an aperture e<2> in the disc and carried on the screw h<1>.
Patent GB-139025-A (GB)
Title: Improvements in optical gauging apparatus
IPC: G02B21/00
Filed: 1919-03-17
Abstract: 139,025. Hilger, Ltd., A., Twyman, F., and Wilson, R. P. March 17, 1919. Optical systems; optical apparatus. - If it is desired to gauge the positions of a number of points or series of points relatively to one another, a standard object c is inserted between a condenser and a system of lenses a corresponding in number to the points or series to be gauged. The lenses a are then adjusted till the images of the points of the standard produced by these lenses are superposed or a definite distance apart. When a test object replaces the standard, the divergences of the images from their standard positions form a measure of the dimensional accuracy of the test object. Coloured screens may be used to aid identification of different images. The width of a lens or the dimensions of a prism may be gauged in this way.
Patent GB-812426-A (GB)
Title: Improvements in or relating to shaped articles of granular material for use in metalcasting
Inventor: WEISS ERIC
IPC: B22D27/06
Filed: 1956-03-02
Abstract: 812,426. Mould and core materials. FOUNDRY SERVICES Ltd. March 1, 1957 [March 2, 1956], No. 6657/56. Class 83 (1). Shaped articles of exothermic, heat-insulating or refractory materials, or mixtures thereof, are made by compacting the material in granular form to the shape required, and applying to the surface thereof a layer of fabric impregnated with a self-setting plaster, such as plaster of Paris. The fabric may be a gauze of asbestos fibre, silica wood, &c., and may be impregnated with a waterproofing agent in addition to the plaster. The invention is described as applied to the manufacture of exothermic sleeves which, for test purposes, were backed with an iron cylinder, and had copper cast therein. Specifications 627,678, 758,193, 772,273, 774,490, 774,491, [all in Group II], and 785,984 are referred to.
Patent GB-162612-A (GB)
Title: Improvements in ribbon mechanism for typewriters
IPC: B41J11/62
Filed: 1920-01-21
Abstract: 162,612. Alexander, J. Jan. 21, 1920. Ink-ribbon mechanism. - The spool shafts 11 are provided with ratchet-wheels 26 co-operating with spring-teeth 32 on pawls 29 which are slotted to engage guide-pins 30 and are connected to arms 27 on a rock-shaft 25a having an arm 25 engaging the universal bar 5. The pins 30 carry springs for pressing the pawls into contact with the ratchet-wheels. The feed is reversed by means of a manually-operated slide 35 provided with pins 34 for disengaging either of the pawls and the associated spring-detents from the ratchet-wheels. The slide is mounted on screws 39 and guided by a finger 40, a projection 37 co-operating with recesses 38 to retain the slide in the set position. Each spool 10 is retained on the spool-shaft 11 by two arms 14, 15, Fig. 6, which are secured to a spindle 16 mounted in a bearing 17. The arm 15 presses on the spool-shaft and serves as a brake. The vibrator 19 is pivoted to a bell-crank 23 which is connected by a link 24 to the arm 25 and is pivoted on the arm 22 of a bracket 21 secured to the base 6a of the shift-carriage.
Patent GB-212734-A (GB)
Title: Improvements relating to electric sound producing horns
IPC: H04R7/06
Filed: 1923-03-08
Abstract: 212,734. Crosbee, W. A. March 8, 1923. Addition to 185,650. Diaphragms, construction of.-Two or more of the laminations a, employed to strengthen the centre of the diaphragm b of an electric horn as described in the parent Specification, are constructed so as to be compressed or slightly altered in shape during the clamping operation so as to ensure contact over their whole area. In the example shown, the laminations are stamped up to a conical or dished formation, which is pressed flat by the screwing-up of the central pin c into the armature e, the edges a<1> being bent slightly outwards so as to prevent the laminations from cutting into one another or into the diaphragm. Canvas washers d may be employed adjacent to the diaphragm. In a modification, the laminations may be slit radially to assist in the compressing operation. The pin e may operate the interrupter contacts of the horn.