baber/WOPTO huggingface dataset:
Patent GB-904245-A (GB)
Title: Improvements in or relating to electrical sockets
IPC: H01M50/512
Filed: 1960-03-14
Abstract: 904,245. Two-part couplings. EVER READY CO. (GREAT BRITAIN) Ltd., and KNIGHT, G. P. March 9, 1961 [March 14, 1960], No. 8967/60. Class 38 (1). A contact supporting element comprises a sheet 6 of moulded insulating material formed with a shallow recess 7 in one face which has a narrow channel 8 extending almost across the width of the sheet and containing pockets 9 integral with the sheet to accommodate and shroud tubular shaped socket contacts 10. Claws 11 on each contact 10 engage the periphery of each pocket 9 and an integral tag 12 on one contact extends away therefrom and may be connected, as shown, to central electrodes 4 of battery cells 2, a similar tag on the other contact being connected to the other electrodes 3 comprising the cell casings. Two channels 13 with dimples 14 provide stiffening ribs and suppprting projections on the underside of sheet 6, bearing on insulating capping discs 5 of the cells 2 to support the socket 1 on insertion of plug pins. A sheet 15 of the same material as sheet 6 may be solvent welded thereto, apertures in sheet 15 overlying the pockets 9. Pockets 9 may be provided for four or more socket contacts, and the socket 1 may be mounted on the side of the cell assembly if required.
Patent GB-571247-A (GB)
Title: A new or improved photographic shutter
IPC: G03B27/465
Filed: 1943-06-07
Abstract: 571,247. Photographic shutters. FROOME, K. D., and JARRETT, B. A. June 7, 1943, No. 9094. [Class 98 (i)] [Also in Group XXXVII] A combined shutter and reflex device comprises a shutter-leaf normally closing but mounted for movement across an aperture located between the camera lens system or part of the lens system and the focal plane, the shutter-leaf being inclined relatively to the axis of the lens system and provided with a reflecting surface, means for moving the leaf across the aperture to open the latter for and during exposure, and means for optically viewing the image due to rays emergent from the lens system and reflected from the leaf when it is in aperture-closing position, the shutter-leaf being mounted for pivotal movement about an axis at right angles to its plane. As shown, the apparatus is used for photographing images formed by the eyepiece 1 of a compound microscope 2. The camera comprises a cylindrical body portion having a conical light chamber 4 and a detachable film holder 5. The light chamber 4 has an inclined bottom face 10, and its ends are provided with apertured masks 11 and 12. The film holder 5 is a cylindrical metal box having a light aperture 13 closable by the draw slide 14. The flat slide portion 15 of the box is held on the body portion by a screw- and-stud connection. The holder 5 has a spindle 18 carrying a polygonal carrier 19 on which is mounted the film 20 by clips 21. The shutter-leaf 22 is pivoted at 23 and the side facing the eyepiece 1 is made reflecting or has an attached mirror element 24, the image being reflected through the supplementary lens 25 to a low power microscope eyepiece 26, the combination being such that the image viewed through the eyepiece 26 is substantially the same size as that projected on the film. A binocular system may be used. The leaf 22 may be of mica, spring steel, or light metal. If a glass reflector is attached thereto, its outer face may be silvered or unsilvered. A spring 28 holds the leaf in closed position, acting on the arm 30 extending from the pivot 23. The shutter is opened by a solenoid 33 acting on an arcuate armature extending from arm 30. The leaf opens to encounter a spring stop from which it rebounds to end the exposure when the solenoid is de-energized. Time exposures are effected by retaining the leaf open by the fever 37 (or by a cam) operated manually. The construction of the solenoid to obtained a fast shutter speed is described, and the leaf may be allowed to vibrate to vary the exposure time. The solenoid may be energized by a battery, and a mechanical timing switch may be provided to pass electrical impulses of different durations from the current source to the solenoid. This timing switch may be put into action by foot pressure. The mechanical timer may be replaced by an electronic timer comprising a " Thyratron " (Registered Trade Mark) valve.
Patent GB-956124-A (GB)
Title: Improvements relating to the production of aluminium powder
IPC: B22F9/04
Filed: 1963-03-07
Abstract: 956,124. Making aluminium powder. SWISS ALUMINIUM Ltd. March 7, 1963 [March 7, 1962], No. 9146/63. Heading B3A. A process for the production of oxidecontaining aluminium powder suitable for making sintered aluminium bodies by comminuting aluminium comprises stopping the comminution when the bulk density is in the range 0.4 to 0.6 kg./litre, then subjecting the powder to vacuum at a temperature between 400‹ C. and the melting-point of aluminium until the hydrogen content is no more than 5 c.c./100 grams, and thereafter comminuting further in a dry atmosphere until a bulk density of at least 0.7 kg./litre is reached. The vacuum treatment may be carried out at a temperature between 520‹ and 630‹ C. and a pressure between 20 and 0.1 mm. Hg. Specification 698,789 is referred to.
Patent GB-161065-A (GB)
Title: Improvements in hinges
IPC: E05D11/04
Filed: 1920-03-29
Abstract: 161,065. Werner, J. R. March 29, 1920. Hinges of the type having one member axially adjustable on a pivot pin in order to compensate for wear. A pivot pin D is tensioned between lugs a of a member A by a threaded hole in a lower lug a and a nut E. A piece F that is screwed and counterbored to receive an antifriction device I is locked on the pivot pin by a nut E'. The hinge member C has a sleeve c rotatable on the plain part of the pivot pin, and is supported at its lower face by the device I.
Patent GB-931318-A (GB)
Title: Needle bearing cage and its method of production
IPC: B21D53/12
Filed: 1962-03-09
Abstract: 931,318. Bearings. A. PITNER, and ROULEMENTS A AIGUILLES S. A. March 9. 1962 [April 12, 1961], No. 9178/62. Class 12 (1). [Also in Group XXII] A method of making needle-bearing cages comprises, forming in a rectilinear strip of e.g. metal or plastics material a series of openings the flanks of which are locally uniformly shaped by a punch(es) so that the width of the openings adjacent to one face of the strip correspond to a needle diameter plus a clearance allowance whilst adjacent to the other face the opening is less than a needle diameter, bending the blank into a cylinder so that said narrow opening is outermost and welding tabs formed at one end of the strip to recesses formed at the opposite end A strip of material 1 of e.g. metal or plastics has punched openings 2 of a width l, end tabs 23 and stepped ends 25. The flanks 6 of the openings are partially punched by a tool A to produce flanks 8 of width d having radii 10. The strip is formed into a cylinder with the narrower side of the openings outermost and the faces 24 of the tabs 23 buttwelded to the opposite end faces 25 or the tabs 23 are placed over the opposite ends 25 and pressure-welded, in both cases the gap formed by jointing the ends is of a width l<SP>11</SP>. Needle rollers B are sprung into the gaps 2 from the inside of the cage through the narrow gap d<SP>1</SP> produced by the converging of the walls 8 during the cylindrical forming operation. In a modification the rollers are retained by a projecting portion 11 produced on the flanks 6 by a punch having a concave side form c.
Patent GB-767838-A (GB)
Title: Surface inspection of engineering parts
Inventor: PEARSON HENRY REGINALD
IPC: G01B9/00
Filed: 1954-03-29
Abstract: 767,838. Inspection lamps. ROLLSROYCE, Ltd. March 29, 1955 [March 29. 1954], No. 9195/54. Class 75(4) An inspection lamp for illuminating and viewing the surfaces of engineering parts such as gas turbine blades d to discover cracks comprises a tunnel b with non- reflecting walls formed in a wooden casing b<SP>1</SP>, a concave mirror a, preferably silvered on the concave surface at the end of the tunnel, lamps c located in apertures b<SP>2</SP> so as to be shielded from the eyes of the viewer looking through the mouth of the tunnel and to illuminate the object d held near the mouth, and a screen f, preferably adjustable in height located so as to provide a suitable background to the reflected object image in the mirror and so as not to impede the view of the image. The screen f as shown is mounted on a wooden bar e adjustable by vertically slotted sidepieces e<SP>3</SP> and butterfly nuts e<SP>2</SP> secured to casing b<SP>1</SP>, the ends of the bar forming arm rests for the viewer. The lamps may be fed from a small transformer in the casing b<SP>1</SP> with their intensity controlled by turning a knob g.
Patent GB-573020-A (GB)
Title: Improvements in or relating to course and height indicators for aircraft
IPC: G01S1/02
Filed: 1942-07-03
Abstract: 573,020. Radiolocation. R.C.A. PHOTOPHONE, Ltd., and HODGKINS, H. W. H. July 3, 1942, No. 9221. [Class 40 (v)] A radio altimeter of the frequency sweep type is arranged to emit a rotating beam which, as the aircraft advances, strikes the earth on a cyclic curve, manual means being provided for setting a " true course " indicator relatively to a scanning screen on which the resultant signals appear. The axis of the transmitter is inclined to a vertical axis about which it rotates, so that if the aircraft were stationary, the beam would trace a rough circle on the ground and the beam of a cathode-ray tube would trace a corresponding circle on its screen, with undulations in the fore and aft sectors 14, 15, Fig. 3, corresponding to varying contours of the ground, and ripples in the port and starboard sectors 16, 17. The ripples 18, Fig. 1, due to successive circles appear to move along the path of the beam on the screen a in a direction opposite to that in which the aircraft is travelling, at a speed proportional to the speed of the aircraft. The speed of precession is a maximum at the middle points of these sectors, and if the screen a is rotated by hand so that the line 19 intersects the ripples at the points of their highest speed of precession aft, the line 13 will indicate the " true course " of the aircraft. To facilitate the selection of these points of highest speed, an artificial ripple is caused to appear on the screen a at diametrically opposite sectors 20, 20. The cathode-ray tube b is arranged beneath the screen a and the beam is caused to rotate by currents from a twophase generator k driven by the motor f synchronously with the transmitter c. Currents of a beat frequency dependent upon the height of the aircraft produced in the altimeter receiver w are converted at u into corresponding potentials and combined at unit t, Fig. 4 (not shown), with the currents from generator k, the resultant being used to control through valves the potentials applied to the deflecting plates of the C.R.T., thus producing on the screen a curve of the kind shown in Fig. 3. The artificial ripples 20 are produced by a pair of oscillators o, p made operative in turn for appropriate periods by a magnetic member r carried by a disc n on the shaft of the motor f. The frequencies of the oscillators o, p are respectively above and below a multiple of the frequency of the generator k, and currents therefrom are combined with currents from the generator k to produce the " metering scan " q with artificial ripples 20 moving aft like the ripples 18. The " metering scan " q and the " signal scan " s are produced alternately under control of a switch x, y, z driven by the motor shaft and controlling blocking valves in the unit t. The oscillators o, p are carried by a rotatable member linked with the screen a, so that the position at which the artificial ripples appear can be aadjusted.
Patent GB-194169-A (GB)
Title: Improvements in or connected with pie and tart moulding machines
IPC: A21C11/00
Filed: 1922-03-31
Abstract: 194,169. Morton, R. H. March 31, 1922. Pie moulding and lidding machines.-In pie and tart moulding machines of the type in which the mould is carried by an arm 5 which can be swung by hand either under a moulding die 9, or a lidder or trimmer 23, the lidder is arranged to be operated by direct manual pressure against the action of a spring which automatically returns it to the inoperative position. The flidder 23 is carried by a spindle 22 mounted for sliding vertical movement in a bracket 21 on the frame 3 and is constrained upwardly by means of a spring 25 mounted on the spindle between the bracket and a screwed knob 24.
Patent GB-903312-A (GB)
Title: Improvements in or relating to the production of l-tryptophan
IPC: C07D209/20
Filed: 1960-03-16
Abstract: L-Tryptophan is prepared by reacting 3-indolepyruvic acid with an amino group source in a neutral or slightly alkaline aqueous medium at a temperature of between 25 and 40 DEG C., in the presence of cells of a species of micro-organism of the genus Micrococcus, Serratia, Flavobacterium, Pseudomonas, Bacillus, Escherichia or Aerobacter, together with a monosaccharide and/or organic acid and magnesium ions.  The cells of the micro-organism may be supplied dry or intact, or as a cultured broth.  Amino group sources specified are ammonium chloride, sulphate or nitrate, urea and organic nitrogen containing materials.  Monosaccharides specified are glucose, fructose, lactose, maltose, sucrose and pentose. Organic acids specified are citric and tartaric acids. Surface-active agents may also be added to the reaction medium. Specified microorganisms are M. ureae, rubens, luteus ATCC.398 and lysodeikticus ATCC.4698; S. marcesceus; F. arboresceus; P. docunhoe and riboflavinus; B. cereus and megatherium; E. coli; and A. cloacae and aerogenes.
Patent GB-1293929-A (GB)
Title: Improvements in or relating to agricultural systems
IPC: B62D33/063
Filed: 1969-10-07
Abstract: 1293929 Agricultural tractor and implements C VAN DER LELY NV 7 Oct 1969 [7 Oct 1968 28 May 1969 7 Aug 1969 23 Sept 1969] 9405/72 Divided out of 1293927 Headings A1F and A1P The subject matter of this Specification is described in Specification 1293927 but the claims are directed to an agricultural system comprising a tractor and at least two different agricultural implements having couplings whereby a selected implement may be attached to corresponding coupyling of the tractor and at least one implement is provided with means for supporting it above the ground when not attached to the tractor.
Patent GB-1107791-A (GB)
Title: Improved pneumatic valve
Inventor: BLATCHFORD BRIAN GEOFFREY
IPC: F16K15/18
Filed: 1965-03-05
Abstract: 1,107,791. Regulating fluid flow. CHAS. A. BLATCHFORD & SONS Ltd. March 11, 1966 [March 5, 1965], No.9460/65. Heading G3H. [Also in Division F2] A device for controlling the volume of flow of air comprises two loose ball valves 9, 10 held against complete closure by screwed pins 11, 12. The balls 9, 10 co-operate with seats consisting of tapered bores 6, 7 and are held therein by plugs 8. The bores 6, 7 are housed in plugs 2, 3, fitted in bores 4, 5 of the main body 1. The main body 1 is provided with air inlet 13 and outlet 14. Pins 11, 12 are threaded into extensions 4A, 5A or bores 6, 7 and their degree of penetration into these bores is adjusted by rotation of the pins with the aid of projections 11A, 12A. During normal flow from 13 to 14 ball 9 acts as the air controlling ball but in the event of flow in the reverse direction 10 acts as the controlling ball.
Patent GB-167219-A (GB)
Title: Improved process of catalytic oxidation
IPC: C07B35/04
Filed: 1920-04-01
Abstract: 167,219. Wade, H., (Barrett Co.). April 1, 1920. Maleic acid is obtained by passing a mixture of benzene vapour and an oxygen-containing gas, previously heated to the reaction temperature, alternately through thin layers of catalytic material, such as vanadium oxide, and through cooling devices out of contact with the catalyst or its support. The process is applicable to the partial oxidation of other aromatic hydrocarbons. The mixture of hydrocarbon vapour and oxygen-containing gas is introduced through the heated inlet pipes 2 into the reaction chamber 1 containing a number of perforated shelves 7 supporting thin layers of catalytic material 6, between which are pipes 4 for the cooling means. If the catalytic material be metallic, the shelves 7 may be replaced by wire cloth or gauze; grid or radiator devices may be substituted for the pipes 4. Specification 122,167 is referred to.
Patent GB-752482-A (GB)
Title: Machine for profiling the stems or roots of turbine blades
Inventor: KRUSE OTTO
IPC: B23P15/02
Filed: 1954-04-04
Abstract: 752,482. Die-rolling. KRUSE, H., and FETTE, C., [trading as FETTE, W., [Firm of]]. April 1, 1954, No. 9564/54. Class 83 (4). Turbine blade roots 6a are serrated by pairs of rolls 4, 5 coupled as by gears 7, 8 and driven by an electric motor 9, either the work or the rolls being traversed. In one example the blade 6 is clamped in a slide 2 moving on rollers 3a, 3b over a bed 1 carrying the rolls 4, 5. The blade is held between a fixed jaw 15, Fig. 2, and a movable jaw 16 on an arm 10 pivoted to the slide 2 and locked in the clamping position by a cam 12 operated from a handle 11a and having a recess 12a engaging a projection 13 on the slide. A cam 14a on the bed 1 automatically releases the clamps at the end of the working stroke by engaging a projection 12b on the cam 12. The released blade falls through an aperture 18 and shoot 17 in the machine bed.
Patent GB-962434-A (GB)
Title: Synthetic tawing agents
Inventor: HERTEL OTTO
IPC: C14C3/20
Filed: 1961-03-16
Abstract: A synthetic tanning composition contains as a light protective agent, 0.001-0.1% of 1,4-bis-styryl benzene and/or one or more derivatives thereof containing on a benzene ring an alkyl, alkoxyl, carboxylic acid ester or amide, halogen, cyano hydroxyl or carboxyl radical. Specifications 913,735, 924,762, 929,436 and 948,267 are referred to.
Patent GB-701439-A (GB)
Title: Improvements in and relating to carbon paper
IPC: B41M5/10
Filed: 1950-04-19
Abstract: 701,439. Carbon papers. KORESKA, R., KORESKA, W., and KORESKA, A., [trading as KORESKA, W., [Firm of]]. April 19, 1950 [Oct. 27, 1949], No. 9668/50. Class 100 (4). [Also in Group VIII] A method of making a non-curling carbon paper consists of treating a paper sheet with a solution containing polystyrene to form a thin layer on one surface of the sheet and thereafter applying carbon ink to the untreated surface. Alternatively existing carbon papers having a relatively poor non-curling coating, e.g. a light wax covering may be coated with the solution. The polystyrene is applied as a solution comprising trichlorethylene together with, if desired, a colouring material and evaporated by hot rollers and an air blast leaving a thin layer of polystyrene comprising 2-3 grams/square metre. Polystyrene is more hydrophobic than known synthetic resins used for the purpose, is in practice non-absorbent to the oil from the carbon layer and has a temperature coefficient nearly equal to the carbon laver. A light coloured base paper may be used, or if the usual dark paper is employed a coloured pigment can be applied as a layer above the polystyrene layer or direct on the paper sheet.
Patent GB-782809-A (GB)
Title: Manufacture of purified papains or papain-like ferments
IPC: C12N9/50
Filed: 1956-03-28
Abstract: A process for the manufacture of purified papains or papain-like ferments from the commercial crude ferments comprises subjecting the crude ferment to extraction with an aqueous solution of a thiocyanate, e.g. potassium thiocyanate.  The resulting extract is treated with alcohol in the presence of heavy metal ions, e.g. zinc ions, preferably at pH 6.5, whereupon the papains are fractionally precipitated, the less pure fractions precipitating first.  The precipitate is separated by centrifuging at a low temperature, e.g. 0 DEG  to -8 DEG  C. and suspended in dilute acetic acid, then dialysed against running tap water to remove low molecular weight impurities and the excess metal ions.  The papains pass into solution which is then subjected to sterile filtration, e.g. through a Seitz filter using nitrogen as the pressure gas, and finally freezedried.  The final product exhibits about 60 per cent of the full activity that may be achieved on the addition of an activator, e.g. sodium bisulphite.  A new test method for the evaluation of papains depending upon a calorimetric determination of the residual casein, which remains from a given quantity, after the action thereon under fixed conditions by the papain, is disclosed in the Specification.
Patent GB-508734-A (GB)
Title: Improvements in spray producers
IPC: B05B7/24
Filed: 1938-03-30
Abstract: 508,734. Spray-producers. HAGGIS, B. March 30, 1938, No. 9786. [Glass 69 (iii)] In an air pressure sprayer of the kind in which air cuts in the surface of the liquid to spray and to force it up a dip tube to an atomizing nozzle, means are provided for interrupting the spray at will by controlling the air pressure acting on the liquid surface without opening or closing the jet orifice, and means are also provided for setting the size of the jet orifice to any desired value. The barrel 1 of a'spray gun is provided with a socket 1a communicating with an air supply and carries a handle 2 and liquid vessel 4 to which air is supplied through a passage 18. A vent 17 is closed by a spring- pressed needle valve 20 controlled by a trigger 22 to release pressure in the vessel 4 and thus stop the spray. The compressed air is led into the vessel 4 through a coiled pipe 16. Liquid is ejected through the dip tube 12 to a nozzle 13a mounted on a block 8 and regulated by a needle valve 9 which is locked in position by a nut 10. The nozzle 13a forms part of a cup 13, the outer part 13b of which may be rotated to regulate the size of the orifice, the outer rim 15 being graduated. Atomizing air passes around the block 5 to the atomizing nozzle.
Patent GB-1411352-A (GB)
Title: Exhaust gas recirculation control device in an exhaust gas recirculation system of an internal combustion engine
IPC: F02M1/00
Filed: 1973-02-28
Abstract: 1411352 Treating I C engine charge NISSAN MOTOR CO Ltd 28 Feb 1973 [2 March 1972] 9812/73 Heading F1B Exhaust gases are recirculated to the intake manifold 14 under the control of a valve 22 operated conjointly with the carburetter throttle valve 12. A flow restricting orifice plate 34 and/or a flow restricting valve 44 is provided downstream of the valve 22, the orifice 34a or restricting valve providing the effective flow restriction beyond a certain opening of the valve 22. The valve 44 closes the recirculation passage 20 when the engine is cold or operating with a light load. A solenoid valve 54 may allow the application of intake manifold vacuum to the actuator 50 to close the valve 44 or a solenoid (62), Fig.3 (not shown), which opens the valve from a spring-biased closed position to a flow restricting position when energized may control the valve.
Patent GB-528443-A (GB)
Title: Improvements in or relating to lubricating systems for spindles and bearings
IPC: F16N7/40
Filed: 1939-04-25
Abstract: 528,443. Bearings, lubricating. BRYANT CHUCKING GRINDER CO. April 25, 1939, No. 9853/40. Convention cate, July 7, 1938. Divided out of 528,003. Drawings to Specification. [Classes 12 (i) and 12 (iii)] The subject-matter is identical with that of Specification 528,003, but the claims are for a bearing sleeve having lubricating openings beneath the shaft and at one side of the shaft in combination with means for delivering lubricant at two different pressures through these openings and valves for effecting selection of either of the said pressures.