baber/WOPTO huggingface dataset:
Patent GB-746881-A (GB)
Title: Improvements in and relating to means for incision of paper and the like
IPC: B26D1/09
Filed: 1953-12-11
Abstract: 746,881. Cutting apparatus. LONDON TRANSFORMER PRODUCTS, Ltd., and PHILPOT, E. J. W. Oct. 26, 1954 [Dec. 11, 1953], No. 34558/53. Class 31 (1). [Also in Group XXXV] Apparatus for slitting paper or like material, e.g. for wrapping over layers of wire in an electric coil for electromagnetic apparatus, comprises means for intermittently advancing the material to and between plates at a cutting station at which are located guillotine cutting means which are operative after each advance of the material to cut a slit in, and extending inwardly from, one or each side edge of the material. In the apparatus shown, a paper strip 3, Fig. 1, is fed from roll 4 between adjustable guide plates 2 and then between upper and lower plates 9 provided with inclined slots 13. The knives 18 are supported by two frames 17 adjustable on a spring-influenced bar 14 and are moved downwards periodically to pass through the slots 13 by means of cams 20 on a shaft 19 driven either by hand or from an electric motor 29. The strip is fed intermittently by means of rollers 22, 23, Fig. 2, the roller 23 being freely mounted and spring-urged towards the roller 22 which is driven stepwise by means of the engagement with a sprocket 35 thereon of a pin 34 on a shaft 33 passing freely through the roller 23, the shaft 33 being driven from the shaft 19. By altering the size of the roller 22, the spacing between slits may be varied. The plates 9, which may have an interchangeable insert disposed therebetween, are adjustable lengthwise of the strip. The upper plate 9 may be provided with upstanding guides to embrace the knife-supporting frames 17 and thus ensure automatic transverse adjustment of the frames in accordance with adjustment of the guillotine plates. The slits may be deeper on one side of the strip than on the other.
Patent GB-787504-A (GB)
Title: Improvements in or relating to the synthesis of urea
IPC: C22C9/01
Filed: 1953-12-11
Abstract: Urea is prepared by the carbon dioxideammonia synthesis in an apparatus at least one part of which, which is subjected to attack by the hot reaction components or products under pressure, is constructed of or protected by a layer of a copper alloy containing from 3 to 11 per cent of aluminium, with or without one or more further elements the total quantity of which does not exceed 5 per cent.  The specified further elements are silicon, nickel, vanadium, chromium, lead, titanium, iron and manganese. The preferred alloys contain little or no iron; when iron and manganese are present, the quantity of iron present should preferably not exceed that of the manganese.  The parts of the apparatus which may be constructed or protected by the alloys include the autoclave and valves or pipes through which the reactants or product pass under pressure at temperatures exceeding 130 DEG  C.  Numerous specific alloys are described (see Group II).ALSO:At least part of the apparatus used in the synthesis of urea from carbon dioxide and ammonia which is subject to attack by the hot reaction components or products under pressure is constructed of or protected by a layer of an aluminium bronze consisting of a copper alloy containing from 3 to 11 per cent of aluminium, with or without one or more further elements the total quantity of which does not exceed 5 per cent.  The specified further elements are silicon, nickel, vanadium, chromium, lead, titanium, iron and manganese.  Preferably the alloys should contain little or no iron.  The parts of the apparatus which may be constructed of or protected by the alloys include the autoclave and pipes and valves through which the reactarts or products pass under pressure at above 130 DEG  C.  Numerous specific alloys are mentioned (see Group II).ALSO:Aluminium bronzes consist of a copper alloy containing 3-11 per cent of aluminium with or without other elements, e.g. iron, manganese, nickel, chromium, vanadium, lead, titanium and silicon, the total quantity of which does not exceed 5 per cent.  The alloys, which are utilizable in the manufacture of urea-synthesis apparatus (see Group IV(b), are preferably poor in iron content and when both iron and manganese are present, the quantity of iron should preferably not exceed that of the manganese.  Preferred alloys are those containing 8-10 per cent Al, up to 1 per cent Mn, not more than 0.4 per cent Fe and less than 0.3 per cent of other elements, e.g. Cr, Va, Ti and/or Si, the balance being copper and the percentage ratio of Fe:Mn not exceeding 1:2, including those containing 9-10 per cent Al, 0.2-0.6 per cent Mn, 0.05-0.25 per cent Fe, the percentage ratio of Fe:Mn preferably being between 0.1:1 and 0.45:1, and preferably a total quantity of 0.01-0.1 of Si, Va, Cr and/or Ti. Other alloys mentioned contain 6-8 per cent Al and 1.5-3 per cent Fe or 9-10 per cent Al and 2.75-3.75 per cent Fe, in each case there being at most 0.5 per cent of other elements, the balance being copper.
Patent GB-897539-A (GB)
Title: Improvements in or relating to shell-moulding apparatus
Inventor: PEAKE JOHN MORRIS
IPC: B22C23/00
Filed: 1958-10-29
Abstract: 897,539. Moulding-machines. BAKER PERKINS Ltd. Oct. 29, 1959 [Oct. 29, 1958 (3)], Nos. 34632/58, 34633/58 and 34634/58. Class 83 (1). In an automatic or semi-automatic shell moulding machine having a number of work stations, or superposed duplicated sets of workstations, sequentially traversed by a number of heated patterns moving in a common orbital path or superposed paths about a common vertical axis, each pattern-carrying and traversing means is structurally distinct and independently movable relative to the others over arcs of said common path or paths, means being provided to cause each pattern-carrying and traversing means to move its associated pattern to and through each work-station independently of any other of said means, but in compatible relationship to the movement and position of the other said patterns in the same orbit path. Two patterns A, B supported in brackets 1, 2, respectively, are moved sequentially through an investment station X, a curing station Y, and an ejection station Z. At the investment station the pattern and the dumpbox 11 are inverted on a shaft 12 driven by gearing 19, 20 actuated by a cylinder 22. The bracket 1 is mounted on a tubular shaft 5 and the bracket 2 is mounted on a shaft 4, coaxial with, and inside the shaft 5. Each shaft carries a ratchet-wheel 30, 36, respectively, which is indexed by a spring- loaded pawl 34, 41 operated by the reciprocation of links 42 connected to a crosshead 43 reciprocated by a cylinder 46. The disposition of the pawls is such that rearward movement of the crosshead indexes bracket 1 carrying pattern A while forward movement indexes the bracket 2 and pattern B. Each shaft 4, 5 also carries a brake drum 47, the associated brake shoe 51 being mounted on the machine frame and coupled with a locking-member 52 for engaging recesses 48-50 on the brake drum and positively locking the shaft in its indexed position. The brakes and locking-members are actuated by cylinders 53 controlled by the position of the crosshead 43. Timers may be actuated at each station and there may be a timer for each pattern arranged so as to be actuated only by its associated pattern.
Patent GB-176157-A (GB)
Title: Improvements in gudgeon pins & pistons of steam & internal-combustion engines, pumps & compressors
IPC: F16J1/16
Filed: 1920-12-08
Abstract: 176,157. Langford, J. B. Dec. 8, 1920. Connecting-rods; pistons, balancing laterally.-In a piston for a steam or internalcombustion engine, pump, or compressor, the gudgeonpin 4 is placed close to the crown of the piston and is offset from the centre of the piston. The gudgeon-pin has flattened ends engaging in slots 3 cut in lugs 2 in the interior of the piston. The ends and shoulders 8 of the gudgeon are curved to arcs struck from the centre of the piston or from the centre of the gudgeon-pin, the engaging faces on the lugs being similarly curved. The gudgeon-pin may be drilled axially to reduce its weight, or may be built up by welding solid ends in a tubular body.
Patent GB-402937-A (GB)
Title: Improvements in and relating to methods of operating electric discharge devices
IPC: H01J17/04
Filed: 1932-12-08
Abstract: 402,937. Valve circuits. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitõts,-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Dec. 8, 1932, No. 34841. Convention date, Dec. 8, 1931. [Classes 39 (i) and 40 (v).] The cathode of a thermionic discharge device is heated with higher than normal power when the heating - current is first switched on, and after a definite time has elapsed transfer is made automatically to normal heating power. As shown in Fig. 2, the cathode 10 or the heating-element therefor is supplied from mains through a transformer 15. A time-lag relay 14 is also connected across the mains and after a definite time throws over its contact 17 so as to cut down the voltage supplied to the cathode 10. The secondary coil of the transformer 15 may be tapped instead of the primary coil. For direct-current supply, the current is reduced by a tapped rheostat (Fig. 1, not shown). The heating element of an indirectly-heated valve may be tapped (Fig. 3, not shown); or the relay 14 may operate by disconnecting one of a pair of heating-elements after the starting-period has elapsed (Fig. 4, not shown). The time-lag relay may be of the thermal type ; or it may be controlled by a photo-electric cell or a thermo-electric element exposed to radiation from the hot cathode. The system may be applied to hot cathode tubes with vapour filling and arc discharge. Specifications 300,614, [Class 39 (i), Electric lamps, Arc &c.], and 367,477 are referred to.
Patent GB-1160295-A (GB)
Title: Gyroscope
Inventor: HAUF FREDERICK WILLIAM
IPC: G01C19/20
Filed: 1966-08-03
Abstract: 1,160,295. Gyroscopic apparatus. NORTH AMERICAN AVIATION Inc. Aug. 3, 1966, No. 34854/66. Heading G1C. Gyroscopes of the type described in Specification 1, 021, 650 are operated at rotor speeds of between 10 and 80 revolutions per second, which in conditions of a low gravitational field compared with that of the earth is sufficient to provide a gas bearing for the rotor with significantly lower power consumption of the driving motor.
Patent GB-1420397-A (GB)
Title: Device for applying spacers to reinforcing rods
IPC: E04C5/20
Filed: 1973-07-23
Abstract: 1420397 Device for applying spacers to reinforcing rods H-W DAUSEND 23 July 1973 [26 July 1972 10 March 1973] 34919/73 Heading E1W A spacer applying device comprises a housing 2 which incorporates a slideway along which a carriage 4 can move from a retracted position as shown to an advanced position where a spacer 5 is engaged on a reinforcing rod 7. Upon depression of the actuating lever 32' linked to the carriage 4, the carriage moves the spacer, in position at the bottom of an incorporated magazine 1 towards the rod 7 which is simultaneously elevated by a pair of camming surfaces 43 on the leading edge of the carriage either side of the spacer. Upon releasing the lever 32' which may be foot actuated a spring 37 returns the device to its retracted state.
Patent GB-742450-A (GB)
Title: Improvements in or relating to piperazine derivatives and process of preparing the same
Filed: 1953-12-15
Abstract: l-Monoformylpiperazine is made by reacting piperazine with an alkyl formate.  The reaction is preferably carried out at a temperature up to 110 DEG  C., e.g. at 50 DEG -110 DEG  C., and in a closed system using an alkyl formate wherein the alkyl group has from one to four carbon atoms, such as methyl or ethyl formate.  The mol. ratio of piperazine to alkyl formate is preferably at least 1 : 1. When an excess of alkyl formate is present increased amounts of the bis formyl piperazine are formed.  Examples are given.
Patent GB-490116-A (GB)
Title: An improved protective coating for electric heating elements
IPC: H05B3/18
Filed: 1937-12-17
Abstract: 490,116. Heating by electricity. NAAMLOOZE VENNOOTSCHAP MOLYBDENUM CO. Dec. 17, 1937, No. 34955. Convention date, July 23. [Class 39 (iii)] To prevent oxidation, an electric heating element comprising a conductor of high melting point has a protective coating of a sintered mixture of silicon dioxide, chromic oxide, and aluminium oxide ; the coating may also contain a small percentage of zirconium, cerium, titanium or magnesium oxide. The conductor may consist of tungsten, tantalum, molybdenum, or alloy thereof.
Patent GB-418879-A (GB)
Title: A heating pad for use in hair waving
IPC: A45D7/06
Filed: 1933-12-12
Abstract: 418,879. Hair-waving appliances. McDONOUGH, E. G., 472, Gramatan Avenue, Mount Vernon, New York, U.S.A. Dec. 12, 1933, Nos. 34970, 34971, and 34972. Convention dates, Jan. 4, 1933. [Class 131.] A pad for use in heating a pre-formed tress of hair exothermically comprises a perforated envelope 2 of impervious material, e.g. foil, containing an appropriate chemical, a sheet 7 adapted to be adhered to the face of the envelope 2 to seal temporarily the perforations 4, and a sheet 6 of absorbent material adapted to be moistened and folded or placed over the perforated face of the envelope after the sheet 7 is removed. The envelope 2 is attached to a sheet 5 of impervious material, e.g. foil, secured to an outer wrapper 1 comprising a folded sheet of impervious material, e.g. parchment paper or foil. The sheet 7 may be loose, or may consist of a foldable flap, e.g. an extension of the sheet 5, may be provided with perforations which do not align with the perforations 4, and may be covered by an additional flap, which may be perforated. The sheet or flap 7, or the additional flap is replaced upon the moistened sheet 6 before the pad is wrapped around the tress.
Patent GB-384448-A (GB)
Title: Improvements in and relating to oil burners
IPC: F23D11/10
Filed: 1931-12-17
Abstract: 384,448. Liquid-fuel burners. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Woodruff, H. S. ; 163, Plymouth Avenue, Schenectady, New York, U.S.A.) Dec. 17, 1931, No. 34983. Convention date, Dec. 17, 1930. [Class 75 (i).] An oil burner comprises a base-piece 10 carrying an oil nozzle tube 14, a tube 15 supplying air for atomizing the oil discharged from the tube 14, and a casing 20 having external fins or vanes 22 surrounding the tube 15, the casing being partially filled after exhaustion through a conduit 211 with an easily vaporizable liquid such as alcohol. The burner is mounted in a housing 23 and projects into the base 23<1> of the combustion chamber. Under combustion conditions the oil and air nozzles are cooled by the vaporization of the liquid in the casing 20, the vapour formed being condensed at the upper part of the casing by the cooling of the vanes 22 by the passage of air entering the housing 23 through an inlet 24 and passing through apertures 25 in the base 23<1> into the combustion chamber. A needle valve 12 controlling the oil flow from the tube 14 may be operated electromagnetically. Specification 384,059 is referred to.
Patent GB-411531-A (GB)
Title: Improvements in electric cookers
IPC: A47J37/01
Filed: 1932-12-09
Abstract: 411,531. Electric cooking-ovens. ROEMER, C. W. DE, 20, Arthur Road, Wimbledon Park, London. Dec. 9, 1932, No. 35002. [Class 39 (iii).] A portable electric cooker comprises a stand 11 containing heat-insulating material 14 and heating elements 19, a food receptacle 12 with bent over edges 24 seating on the top of the walls of the stand, and a lid 13 the side walls of which extend downwards into the receptacle 12 for a short distance and are then bent upwards and outwards over the bent edges 24. Local extensions of the edges 24 form handles 25. The lid may have a lining of heat-insulating material, and may be provided with an electric heating element.
Patent GB-1112999-A (GB)
Title: Rotary pumps
IPC: F01C21/08
Filed: 1966-08-04
Abstract: 1,112,999. Rotary pumps; treating exhaustgases. GENERAL MOTORS CORPORATION. Aug.4, 1966 [Sept.17, 1965], No.35002/66. Headings F1B and F1F. In a rotary air-pump, or compressor, axial seals for a working space 54, which is defined by a housing 24 and a rotor 30 therein, are constituted by thin flexible annular plates 88, 90 clamped against the ends of the rotor by end plates 74, 80, respectively, so that the radially-outermost parts of the plates can be pressed against the adjacent end walls of the housing by the pressure of the air in said working space, Fig. 5 (not shown). The plates 88, 90 are made of carbon and also constitute thrust-bearing members for the rotor. A driving shaft 50 attached to one end of the rotor is supported by a ball bearing 68 whose inner race abuts the plate 74. The plate 80 is supported by a roller bearing 84 that is mounted on a boss 86 in a plate 26 constituting an end wall of the housing, which boss also carries a non-rotatable shaft 42 whereon hubs 44 for a plurality of vanes 46 are supported by rollers. Each vane has its free end in close proximity with the inner peripheralsurface 28 of the housing and slidingly engages with spring-biased sealing-strips 60, 62. Inlet and outlet channels 36, 38 in the lower part of the housing are separated from each other by a portion 34 of the housing that constitutes an abutment for the rotor, the said channels being situated below the rotor so that condensate can be collected therein and prevent injury due to freezing when the pump is idle. Sudden changes of pressure in the region of said channels is prevented by arcuate notches 56, 58 in the surface 28. The pump is intended to supply compressed-air to exhaust passages in an I. C. engine (E), Fig. 1 (not shown), through a hose 18 connected to the channel 38, a manifold pipe (20) and tubes (22), the shaft 50 being driven by the engine through a belt 14 engaging with a pulley 52 attached to the shaft. Air is drawn by the pump through a filter (F) and a hose (16) connected to the inlet channel 36.
Patent GB-1190796-A (GB)
Title: Centrifugal Gas Compressor
IPC: F04D27/02
Filed: 1967-07-31
Abstract: 1,190,796. Centrifugal compressors. CARRIER CORP. July 31, 1967 [Sept. 6, 1966], No.35032/67. Heading F1C . In a centrifugal gas compressor having rotatable inlet guide vanes 13, Fig.1, and a diffuser restrictor 29, the vanes and restrictor are both adjustable via a common mechanism comprising a control ring 15 rotatably adjustable on bearings 17 by a rotatable rod 35 and links 37, 39. The rod is rotated by electric, pneumatic or hydraulic means responsive to an operating condition of the compressor or its associated equipment, which is indicative of compressor load, e.g. the chilled water temperature in a refrigerator using the compressor, or the temperature of the discharge in an air compressor. The restrictor is connected to the control ring by rods 27 and rollers 25 which engage cam slots 21 in the control ring. The slots are so shaped, Fig.3 (not shown), that on rotation of the control ring the vanes are moved to their 60% closed position before the restrictor is moved. Thereafter, further rotation of the control ring causes the vanes to move between 60% and 85% closed while the restrictor moves between 100% and 5% open. Still further rotation of the control ring causes the vanes to move between 85% and 100% closed while the restrictor remains at 5% open.
Patent GB-209284-A (GB)
Title: Improvements in babies' feeding bottles
IPC: A61J11/00
Filed: 1922-12-23
Abstract: 209,284. Jamieson, W. H. Dec. 23, 1922. Feeding-bottles, teats for. - Relates to teats for babies' feeding botties, and of the kind without a stopper and in which the lower part of the teat engages over the flanged neck of the bottle. According to the invention, a solid annular guard A is formed integral with the nipple B and of greater diameter than the lower part C.
Patent GB-1302666-A (GB)
IPC: D01D4/06
Filed: 1971-07-27
Abstract: 1302666 Spinnerets GLANZSTOFF AG 27 July 1971 [27 July 1970] 35124/71 Heading B5B A spinning head wherein a nozzle plate 3 and a strainer 5 for filter 4 are detachably mounted in a holder 2, itself mounted on a cover 1 having an axial polymer inlet 8, and wherein the space between the cover and the strainer and/or filter widens conically towards the strainer and/or filter, has arranged in the said space a flow guide 6 whose upper surface 6<SP>1</SP> forms with the inner surface 1<SP>1</SP> of the cover an outwardly tapering flow path and whose lower surface 6<SP>11</SP> forms with the upper surface 4<SP>1</SP> and/or 5<SP>1</SP> an inwardly tapering flow path. The guide 6 may  be a rotatable, discus-shaped body of stainless or acid-resistant steel. To avoid stagnation of the melt a displacement body 6<SP>111</SP> may extend axially into the passage 8, the wall 1<SP>11</SP> may be curved and the edge of the guide may have a radius R of 2-5 mm. The spinning of nylon 66 and polyethylene terephthalate is specified.
Patent GB-959784-A (GB)
Title: Electro-mechanical transducer
IPC: H04R11/00
Filed: 1960-10-13
Abstract: 959,784. Electro-mechanical transducers. INDUSTRIAL RESEARCH PRODUCTS Inc. Oct. 13, 1960 [May 5, 1960], No. 35130/60. Heading H4J. A transducer, intended for use as a hearing aid receiver but which could be used as a microphone or as a pick-up, comprises a first magnetic circuit containing a permanent magnet and an air gap, the vibratile portion of an armature lying in the air gap and the armature forming part of a second magnetic circuit which is substantially enclosed by the material of the first magnetic circuit. Such an enclosure acts as a screen for the magnetic circuit of the armature. As shown in Fig. 1, the armature 16 is E-shaped with the ends of the outer limbs clamped with interposed spacers of low permeability between magnets 10 and 28 magnetized across their thickness and faced with polepieces 12 and 26. The central limb 22 of the armature is surrounded by a coil 32 and projects into the central gap between the magnets 10 and 28. As seen best in Fig. 3, the magnets are placed with their poles in series and a return path for the magnets is provided by a permeable casing comprising a dish 34 covered by a closely-fitting lid 38. The lid is apertured to pass the coupling link 42 between the armature 22 and a diaphragm 40 or a stylus should the transducer be used as a pick-up. The casing is also apertured in one side to accommodate insulators 72 for connecting leads 75. The coil 32 does not bear on the armature 22 but is supported between the opposite walls of the casing. The ends of the coil former may project so as to embrace the outer limbs of the armature in wide slots which limit the maximum amplitude of vibration of the armature (see Fig. 4, not shown). To further protect the armature from violent displacement it may be connected, at its nodal region near the base of the centre limb, to the casing by means of flexible strut 83 (see Fig. 3). Alternatively the base of the centre limb may be constrained by the end wall of the coil former (see Fig. 6, not shown). The rectangular diaphragm is covered by a lid 44 with a central aperture covered by a screen 50. If the lid 44 is made of permeable magnetic material it may be used in place of the inner lid 38 and the diaphragm be given an alternative mounting. With the inner lid in use, however, the cavities behind and in front of the diaphragm 40 are coupled through a short tube 54. When used as a microphone the armature is spaced symmetrically between identical magnets and there is normally no flux induced. When used as a receiver, however, the magnets are made of different strengths or the armature is spaced asymmetrically and balance is restored by a current bias applied to the coil.
Patent GB-383091-A (GB)
Title: Improved fishing line
IPC: A01K91/00
Filed: 1931-12-19
Abstract: The ends of a fishing line are tapered and one end tapers to a smaller diameter than the other.