baber/WOPTO huggingface dataset:
Patent GB-1473951-A (GB)
Title: Improvements in or relating to catalysts for exhaust gas treatment
Inventor: REMEIKA JOSEPH PETER
IPC: B01J23/34
Filed: 1974-05-29
Abstract: 1473951 Exhaust gas catalysts WESTERN ELECTRIC CO INC 29 May 1974 [29 May 1973 2 July 1973] 23711/74 Heading BIE [Also in Division Cl] A catalyst compositions for treatment of I.C. engine exhaust gases is a perovskite-like manganite of formula wherein RE = a rare earth metal selected from La, Pr and Nd, M is at least one of Na, K, Rb and Cs, x is 0.1 to 0.4 and in which the amount of any cation may be reduced by up to 15 atom percent to accommodate vacancy structures. The catalyst may be supported, e.g. on alumina. The catalyst may be used as the sole catalyst of a single stage treatment of the exhaust gases or in both stages of a sequential reduction then oxidation treatment of the exhaust gases or it may be used in the reduction stage only, the subsequent oxidation stage using a different catalyst, e.g. a perovskite-like manganite of formula wherein RE = La, Pr and/or Nd, M = Pb, Ca, Sr, Ba and/or one or more elements which occupy dodecahedral sites as partial replacement of RE as monovalent ions, x is from 0.05 to 0.7, y is from 0 to 0.15 and z is 0 to 0.15 (but y and/or z is at least 0.005). The catalysts may be acid etched to improve activity.
Patent GB-599752-A (GB)
Title: Derivatives of piperonyl aldehyde and compositions containing them
IPC: C25D3/24
Filed: 1945-09-14
Abstract: Piperonyl aldehyde is heated with an aldonic acid, preferably in presence of a lower fatty acid such as acetic or propionic as catalyst.  The products are water-soluble and are used in electroplating baths, particularly alkaline cyanide zinc plating baths, and in perfume manufacture.  They may first be dissolved in organic solvents such as butyl carbitol, methyl and ethyl "Cellosolve" (Registered Trade Mark) formals.  These solutions when added to aqueous alkaline baths form emulsions which break to clear solutions.  Gluconic, mannonic, arabonic, galactonic and xylonic acids are specified aldonic acids.  The reaction temperature must not be sufficiently high to cause caramelizing. In examples: (1) 1-4.2 parts by weight piperonyl aldehyde, 12-22 gluconic acid (50 per cent) and 17-9 acetic acid (91 per cent) are heated for 1 hour at 50-60 DEG C.  The product is dissolved in 10-30 parts butyl carbitol; (2) the acetic acid is omitted and heating continued for 6-10 hours; (3) the solutions of (1) or (2) are added to a cyanide zinc plating bath in a proportion of 3-60 c.c. per gallon giving a brightening effect especially with electrolytes containing zinc aldonate and the reaction product of an aldonic acid with gelatin.  The compositions may be added in increments or continuously, and are filterable. Current densities of 10-50 amps. per sq. ft. are preferably employed.
Patent GB-388673-A (GB)
Title: Improvements in gas producers
IPC: C10J3/00
Filed: 1932-08-25
Abstract: 388,673. Gas-producers. NAAMLOOZE VENNOOTSCHAP MASCHINERIEENEN APPARATEN FABRIEKEN, Utrecht, Holland. Aug. 25, 1932, No. 23825. Convention date, Aug. 25, 1931. [Class 55 (i).] In a gas-producer with automatic and continuous ash removing means, the coal is fed from an upper vertical cylinder 5 to a lower vertical cylinder 7 over an inclined surface 6, the vertically projected area of which is equal to or greater than that of the horizontal cross-section of the upper cylinder. In a modification, Fig. 3, a central partition wall 8 divides the producer into two compartments each fed from an annular feeding shoot 11 on to an inclined surface 12 below it.
Patent GB-236426-A (GB)
Title: Improvements in means for mounting and centering cylinders, particularly automobile-cylinder blocks for their grinding
IPC: B24B41/06
Filed: 1924-10-09
Abstract: 236,426. Kellenberger, L. Oct. 9, 1924. Round holes, enlarging and trueing. - Relates to means for mounting and centering cylinders for their grinding, wherein the cylinder block is mounted on a machine table. To bring the axis of the bored cylinders to that x of the grinding spindle, a centering device c is applied to two cylinders, comprising a screw d which is rotated and by means of a sleeve f forces pins e<1> - - e<3> apart until its axis corresponds with that of the bore. Each device c has an extension g<1>, g<2> both of which are made to abut on a rule l laid over rods k<1>, k<2> of the same diameter as the extensions, the rods being secured to angle plates i<1>, i<2> on clamping plates h<1>, h<2> which are then secured to the cylinder-block. The machine has two tables n, o, the former carrying members p<1>, p' on which are arranged wedges m<1>, m<2> marked with a zero-line indicating the distance z which equals the radius of the rods k<1>, k<2>. The cylinders are placed on the wedges and clamped and in the zero-position their axis is at the same height as that of the grinding spindle. Screws r<1>, r<2> may be provided for adjusting the wedges and hence the cylinders up and down, and in place of wedges an eccentric or like device may be used. For horizontal centering, a distancepiece s, having a bored part u fitting over the extensions g<1>, g<2> is adjusted against a stop v secured in the member p<2> so that the distance t is fixed. At the same time the check pins wl - - w<6> are adjusted on the table n so that they correspond with the cylinders and the pin w<1> abuts on the adjustable bearing stop. Once the first cylinder is adjusted, the others can be accurately adjusted by applying to them the distance members s and moving the block laterally.
Patent GB-753456-A (GB)
Title: Improvements in potato planting machines
IPC: A01C9/00
Filed: 1952-09-24
Abstract: 753,456. Potato-planting machines. KUCHENMEISTER, H. J. Sept. 24, 1952 [June 17, 1952], No. 23961/52. Class 6 (1). In a potato-planting machine, potatoes are collected from a feed trough 12 by scoops 14 mounted on a wheel 13 which rotates together with a truncated conical hopper which feeds potatoes to the trough 12 through automatically-operated flaps 21. The scoops are each provided with side wings which ensure constant movement of the potatoes in the feed trough, and a tip which engages a central slot in the trough 12. The potatoes are fed from the scoops into a guide channel 18 provided with an outlet door 22 operated by a lever mechanism. Furrow opening and closing shares 38 and discs 40 are provided. The wheel 13 may be omitted, the scoops being mounted directly on the hopper which may be formed as part of a wheel of the machine. The guide channel 18 may be omitted and each scoop may be associated with a box-like pocket into which a potato is deposited by the scoop, the feed trough being extended to prevent the potatoes from dropping out of the pockets. One or more devices are mounted on an axle 2 and are transversely adjustable to vary the width of the planted rows. An auxiliary furrow-opening share may be positioned behind the share 38 and a covering plate or disc may be positioned in front of the discs 40.
Patent GB-350804-A (GB)
Title: Improvements in or relating to superstructures for rigid airships
IPC: B64B1/00
Filed: 1930-08-11
Abstract: 350,804. Airship framework. GOODYEAR-ZEPPELIN CORPORATION, 1144, Market Street, Akron, Ohio, U.S.A. Aug. 11, 1930, No. 24025. Convention date, Aug. 30, 1929. [Class 4.] To enable an assembling frame to be dispensed with when erecting polygonal wire-braced main rings of a rigid airship each main ring comprises a plurality of polygonal rings braced by inwardly projecting girders arranged between the constituent rings. Each ring 10, Fig. 1, comprises two spaced ring girders 12, Fig. 3, having longitudinally spaced joints 14, 15 at the corners of the polygon. Short girders 17 have their outer ends connected between rings 12 at the joints 14 and their inner ends connected by girders 21 to the joints 15. At the sides and at the upper portion of the ring 10 the girders 21 embrace three sides of the polygon and are braced by girders 22. The lower portion of the ring 10 is braced by a framework 23.
Patent GB-438079-A (GB)
Title: Improvements in stop motion mechanism for swivel looms
IPC: D03D51/00
Filed: 1934-08-22
Abstract: 438,079. Looms. SMITH, H. G., and SHACKLETON, G. W., c/o Hattersley & Sons, Ltd., North Brook Works, Keighley, Yorkshire. Aug. 22, 1934, No. 24158. [Class 142 (i)] Stop-motions acting on derangement of picking-mechanism. In swivel looms in which the shuttles are operated by flexible connections a to a lath b, the connections or bolts a at each side of the loom are provided with members m adapted to engage camlevers p whereby, during normal working, the stop-rod t is turned so that its finger clears the usual frog. An additional guide roller 3 is provided on each laysword to provide an abutment for the member m on the belt when operating the cam-lever.
Patent GB-474488-A (GB)
Title: A process for manufacturing artificial leather
IPC: D06N3/00
Filed: 1936-09-04
Abstract: 474,488. Fabrics composed of agglutinated fibres ; coated fabrics. VEREENIGD INDUSTRIEEL BEZIT VERITEX N. V. Sept. 4, 1936, No. 24253. Convention date, Sept. 25, 1935. Addition to 439,108. [Class 140] A loosely-cohering body of fibres is surfacetreated as described in the parent Specification with a small amount of an adhesive to bind together the surface fibres, is impregnated once by passing between low-pressure cylinders between which a non-viscous rubber dispersion or solution is supplied, dried, calendered, and then impregnated once or oftener on one or both faces with rubber dispersion or solution containing a large amount of fillers by means of a knife-spreading machine. The artificial leather is subsequently finished as by coating with a cellulose derivative lacquer. The knife of the spreading-machine may have a rounded edge, and the rubber dispersion applied thereby may contain colouring materials in the colour of the lacquer coating to be applied.
Patent GB-882729-A (GB)
Title: Improvements in or relating to radiation thickness gauges
IPC: G01N23/203
Filed: 1958-07-28
Abstract: 882,729. Ionization chambers. BALDWIN INSTRUMENT CO. Ltd., SYKE, G., and JAMES, W. T. Oct. 12, 1959 [July 28, 19581, No. 24267/58. Class 39(1) [Also in Group XL(b)] Ionization chamber 32 and radio-active source 44 of a reflected-radiation film thickness measuring gauge (see Group XL(b)) are mounted on an arm 24 which is positioned to direct the radiation at the film or at a bare roller, Figs. 6-8 (none shown) and which can be moved transversely of the film by flexible worm drive 48, see also Fig. 1 (not shown). The ionization chamber interior is maintained above ambient pressure and the reflected radiation passes to it via metal window 47.
Patent GB-485283-A (GB)
Title: Improvements in or relating to electric fans
IPC: F04D29/58
Filed: 1937-09-06
Abstract: 485,283. Unit air heaters. BENNETT, E. Sept. 6, 1937, No. 24274/36. [Class 137] [Also in Group XI] A unit air heater comprises an electrically driven fan b, an enclosing casing e, electric resistance heaters n each having at its rear a reflector q which besides radiating the heat also deflects the air current from the fan, and switch means whereby the heating elements can be switched on or off independently of the fan motor. The casing e may be of wire openwork with the heaters n arranged radially therein. Alternatively the casing may be in the form of a box with parallel heating elements arranged across an opening in its side.
Patent GB-479612-A (GB)
Title: Improvements in press and like guards
IPC: F16P3/04
Filed: 1936-09-07
Abstract: 479,612. Machinery guards. BROUGHTON, G. J. Sept. 7, 1936, No. 24341. [Class 80 (iv)] In guard-operating mechanism of the type in which the clutch-actuating lever is positively connected, with lost motion, to the guard, the coupling between them is placed at the top of the machine instead of at the side. The invention is shown applied to a press in which the ram is driven by a shaft 5 connected to the belt pulley through a clutch 6, 7, which automatically disengages itself at the end of each revolution. The guard comprises a main frame 23, 29, hung on a shaft 24 and a small frame 27, 28, hung on a cross-rod 26 of the main frame. The frame 27, 28 is connected by rods 31, 22, levers 18, 21 pivoted on a spindle 19 at the top of the machine, and a rod 17 with the setting-on rod 15. When the rod 15 is moved to start the machine, the small guard is moved to safety position. If the operator's hand be trapped in the guard it is carried away from the ram by a combined movement of the two frames against the action of a spring wound on the shaft 24. To operate the guard if the shaft 5 revolves without preactuation of the rod 15, a crank 37 on the shaft is connected by links 38, 39 and a stop 41 to a bell-crank 30, 40 secured at 30a to the rods 22, 31. Normally, the arm 40 is moved in starting before the shaft 5 starts to rotate. If, however, this fails to occur, link 39 strikes the stop 41 and moves the bell-crank to operate the guard. Alternatively, the spindle 24 may be rotated by an eccentric or cam on one end of the shaft 5.
Patent GB-1500783-A (GB)
Title: Amplifier circuits
IPC: G11B5/027
Filed: 1975-06-06
Abstract: 1500783 Recording and playback SONY CORP 6 June 1975 [12 June 1974] 24417/75 Heading G5R In a tape recorder in which the amplifier is fed from an A.C. supply by a rectifying and smoothing circuit having a longer time constant than that which supplies the record/playback change-over switches, switching back from record to playback in response to accidental disconnection of the supply is delayed until the output of the first rectifying and smoothing circuit has fallen to a level which will not operate the amplifier. The tape recorder, Fig. 1, is switched into a "record" mode by operation switches S1-S8 upon energization of relays RY1 and RY2. The amplifying stages 4, 5, 6 are fed from a circuit 15 having a shorter time constant than circuit 16 connected to relays RY1, RY2 so that if, in the absence of a holding circuit 17, the A.C. supply were removed during recording, relays RY1 and RY2 would be deenergized while the voltage at B1 was still sufficient to cause howling in the playback mode. Holding circuit 17 comprises a transistor Q3 which is normally held on by the current in the transformer rectified by diode D4. Capacitor D9 and resistor R7 have a very short time constant so that if the supply is removed, Q3 turns off rapidly, connecting the B1 supply to the base of transistor Q2. This keeps RY2 and (through contact S8) RY1 energized until the B1 supply has fallen to a level at which it will not operate at least the pre-amplifier 4.
Patent GB-1088079-A (GB)
Title: Weft stop-motion for a weaving loom
IPC: D03D51/34
Filed: 1966-06-01
Abstract: 1,088,079. Weft stop-motions. NUOVO PIGNONE S.p.A. June 1, 1966 [June 11, 1965], No. 24499/66. Heading D1E.  A weft stop-motion comprises a stationary feeler 4, pivoted at 3, which passes through the reed 10 and closes contacts to stop the loom in the event of weft fault.
Patent GB-142394-A (GB)
Title: Improved means for automatically lubricating railway vehicle wheels, and the like
IPC: B61F17/26
Filed: 1919-10-08
Abstract: 142,394. Abbott, T. Oct. 8, 1919. Forced-feed Lubricators.-Chambered railway-vehicle wheels and the like, provided with spring-pressed buttons E in the projecting nuts D, are automatically lubricated by pumps arranged at the two sides of the track. The pump-chambers A are mounted to swivel on plates M secured to a fixed oil-tank P. Spring- controlled plungers B engage at their outer ends with the nuts D, and are provided with nipples C adapted to co-operate with the buttons E. Suction pipes N have check-valves O<1>, O<2>. Normally, the pump A rests against a stop, and an approaching wheel engages the plunger B, causing the pump to swivel round, thereby ejecting oil through the check-valve G into the chambered wheel, and, as the wheel passes still further along, drawing up a further supply of oil into the pump. On disengagement, the pump swivels back to its stop under spring or balance-weight action. Filter-pockets Q strain waste oil.
Patent GB-497617-A (GB)
Title: Improvements in or relating to the production of rubber threads
IPC: B29D99/00
Filed: 1937-09-09
Abstract: Rubber thread of controlled stretch is made by deposition of rubber from latex on a core consisting of a central filament soluble in certain solvents on which is coiled a thread insoluble in these solvents, and subsequently dissolving the central filament.  The central filament may be of cellulose acetate on which is wound cotton.  After deposition of the rubber, treatment with acetone dissolves the acetate leaving a thread the stretch of which is determined by the pitch of the cotton coil. Specifications 219,635, 290,313, [both in Class 70], and 493,579 are referred to.
Patent GB-597920-A (GB)
Title: Distributing valve for rock drills or like percussive tools
IPC: B25D9/20
Filed: 1945-09-24
Abstract: 597,920. Valve gear for percussive tools. CHICAGO PNEUMATIC TOOL CO. Sept. 24, 1945, No. 24677. Convention date, Oct. 3, 1944. [Class 122 (ii)] A distributing valve 39 for a percussive tool is of annular form and is mounted in a valve chest and surrounds a bush 31 through which the rifle bar 28 passes. As shown, motive fluid passes through valve 42, ratchet ring 27 and the bore of the valve to the cylinder 12 and maintains the valve open by acting on the end face 53. The piston 11 is moved forward and the other end of the cylinder exhausts through groove 59 in the valve until the port 68 is uncovered to admit pressure fluid to act on the face 72 of a collar 57 on the valve to close the admission and exhaust ports and open admission to the other end of the cylinder by the end 56 uncovering the port 65. The valve is held in this position by the pressure of the motive fluid acting on the end 56 in opposition to that acting on the face 54 provided in the bore 55. The compression in the cylinder acting on the end face 53 again reverses the valve and the cycle is repeated.
Patent GB-251851-A (GB)
Title: Tire mold
IPC: B29C33/42
Filed: 1925-10-05
Abstract: 251,851. Gillam, W. R., and Replogle, M. A. Oct. 5, 1925. Moulding wheeL tyres.-Cellular cushion tyres are formed within moulds having apertures for the insertion of core pins which are flared outwardly and the core pins are slidably supported upon carrying-rings in such a manner that they may be readily located within the mould apertures. The mould sections are furnished with apertures 9, Figs. 2 and 4, flared at 28, through which are inserted pins 13 having reduced heads 14 slidably engaging slots 15 in a carrying ring 12. The pins are retained by slides 16 also engaging the slots 15 and the reduced heads 14 and by a ring 17 secured by screws 17<x> or welded. Internal flared portions 10 on the moulds form air traps; alternatively the pins may be formed with reduced portions within the mould. The rings 12 engage grooves 11 to lie flush with the mould walls and are retained by sliding, spring bolts 18, Fig. 6, or rotary catches 22, Fig. 7. also flush with the mould wall.
Patent GB-355505-A (GB)
Title: An illuminating device for glass and the like ornaments
IPC: B60Q1/26
Filed: 1930-08-19
Abstract: 355,505. Illuminated ornaments. HOLROYD, E. F. R. and BREVES, Ltd., 2, Basil Street, Knightsbridge, London. Aug. 19, 1930, No. 24781. [Class 75 (iv).] An illuminating device for glass motor mascots &c. comprises a chamber 1 having a lower well portion 2 which is of smaller cross - sectional are a and accommodates an electric incandescent lamp. A threaded split ring 5 retains the mascot or ornament. The lamp is supported within the well by a socket 6 which slides into the well and has a groove 7 to accommodate a lead to the terminal of the socket from a small plug 10.
Patent GB-1473013-A (GB)
Title: Night driving glare shields
IPC: G02C7/16
Filed: 1976-04-29
Abstract: 1473013 Anti-dazzle spectacles J KIEBALA 29 April 1976 [5 June 1974] 24919/74 Heading A3V [Also in Division G2] An anti-dazzle device comprising two eye shields is attached to the underside of a cap visor 55 and is pivotable between a raised inoperative position and a lowered operative position in front of the wearer's eyes, the two screens being further pivotable in this operative position, one through an angle of less than 94‹ and the other through an angle of less than 90‹ about hinges 62 so as to be brought out of the line of sight, one screen lying adjacent the wearer's nose while the other is adjacent the temple region.  The outward swinging of the shields is limited by stops within the hinges 62.
Patent GB-1262584-A (GB)
Title: Anti-skid brake control arrangement for vehicle wheels
IPC: B60T8/42
Filed: 1969-05-16
Abstract: 1,262,584. Antiskid braking systems. AISIN SEIKI CO. Ltd. 16 May, 1969 [18 May, 1968], No. 25011/69. Heading F2F. In an antiskid brake control arrangement for vehicle fluid pressure operated brakes wherein the hydraulic brake pressure is automatically released and re-applied at a relatively high frequency the repetition of the pressure release and reapplication is limited to one cycle only and then the hydraulic brake pressure is increased suddenly to a certain point at a lower level than the peak point of the pressure variation course of the cycle and is finally increased along a slowly rising pressure-curve. A control cylinder 10 has an axial bore 11 comprising two hydraulic chambers 21, 22 of which the latter houses slidably a plunger 12 and the former a check valve ball co-operating with a seat 15 on a collar 13 between the chambers. The end of bore 11 being hydraulically connected with a conventional master cylinder and chamber 22 being connected through piping 23 to a wheel cylinder or cylinders. A housing 24 attached to cylinder 10 contains a spring urged diaphragm piston 25 dividing the interior space into chambers 26, 27 of which chamber 26 is connected to the air intake manifold of the vehicle engine via a connection 51. The chamber 27 is in permanent communication with a bore 41 pneumatically connected with a port 42 of an electromagnetically operated valve assembly 39, a second port 40 being connected to a bore 37 in cylinder 10 in communication with chamber 26 via a passage 36 so that both chambers 26, 27 are normally in communication with the engine air intake manifold. Valve 39 includes a piston 43 urged by a spring 45 to a position allowing communication between ports 40, 42. When wheels are about to lock a sensor 57 energises the solenoid coil 47 to move piston 43 to seat a valve member 44 on a seating 49 to seal off port 40 and allow atmospheric air to enter port 42 via an air filter 48 and thus create an unbalance between chambers 26, 27 causing the piston 25 to allow the valve 14 to close and interrupt the flow of hydraulic fluid and at the same time the movement of the plunger 12 increases the volume of the part of the circuit including the wheel cylinders and the brakes are released. A bore 34 houses a valve 30 so that when the wheel accelerates again and valve 39 is released the pneumatic pressure of chamber 27 will open valve 30 until the pressure falls to a predetermined level and then the valve will close so that flow only takes place through an aperture 35 in the valve which has a throttling effect and causes the return movement of piston 25 to be retarded.