baber/WOPTO huggingface dataset:
Patent GB-1024878-A (GB)
Title: Improvements in or relating to bearings for railway vehicles
IPC: B61F15/06
Filed: 1963-12-08
Abstract: 1,024,878. Bearings. SOC. GENERALE ISOTHERMOS. Dec. 3, 1963 [Jan. 2, 1963], No. 47778/63. Heading F2A.  A detachable shell-lining of a railway carwheel journal box consists of a steel-sheet shell 3 having a curvature consistent with the diameters of the journals and the bore of the bearing case 1, on which it is secured by means of resilient flat-headed rivets or split-pins 4, having their heads 5 slightly recessed with respect to the operating face 7 of the shell and locked in position by bending the edge of the countersunk rivet or pin hole as at 6. The bearing face 7 of the shell is lined with bearing metal &c. The shell is curved over part of the circumference of the bore and is secured by two of said pins inclined at an angle which together with the securing of the pin head prevents the shell escaping.
Patent GB-1362848-A (GB)
Title: Static power inverters
IPC: G03D9/02
Filed: 1971-10-15
Abstract: 1362848 Controlling inverters GENERAL ELECTRIC CO 15 Oct 1971 [19 Oct 1970] 48059/71 Heading H2F The subject-matter of this Specification is also contained in Specification 1,362,849, but the claims are concerned with a control system for a time-ratio controlled three-phase inverter in which the time-ratio control is only operative at intervals spaced in time from the sequential switching of the inverter main switching devices.
Patent GB-1198897-A (GB)
Title: Improvements in and relating to Tachistoscopic Devices
Inventor: HVALE JAMES L
IPC: G09B17/04
Filed: 1968-10-10
Abstract: 1,198,897. Educational appliances. MARKUS-CAMPBELL CO. 10 Oct., 1968 [4 Jan., 1968], No. 48112/68. Heading G5G. A tachistoscopic device for use in a flash recognition method reading instruction comprises a channel in a housing 14 for a card 18 having a series of images for viewing through an aperture 20 in the housing and a shutter 50 disposed for reciprocal movement in the housing and provided with an opening 52 which will align with the aperture 20 during movement of the shutter, the shutter being provided with an actuating member 64 for setting the shutter against the pressure of a spring 80 and a resilient arm 90 having a friction tip 93 which arm co-operates with a cam 95 positioned to engage the arm 90 to urge the tip 93 against the card 18 to advance the card to expose the next image. The spring is attached to a lever 84 which is adjustable to vary the period of exposure of the image.
Patent GB-1323326-A (GB)
Title: Pre-filtering apparatus
IPC: B01D33/06
Filed: 1970-10-09
Abstract: 1323326 Filtration of dry-cleaning solvents G MAESTRELLI 9 Oct 1970 [5 Nov 1969] 48151/70 Heading B1D Contaminated solvent, flowing from drycleaning plant A through outlet 12, is filtered through a rotating perforated cylindrical drum F disposed in casing 18, the coarse solid matter separated from the solvent (e.g. tufts of wool or cotton, pins, buttons) being removed from the outer surface of the drum by scraper blade M and being collected in perforated box P. The filtered solvent is withdrawn from the interior of the drum through a pipe 14 by means of a pump (not shown), and may be passed through a fine filter before being returned to plant A. Drum F is geared to motor G which is automatically started when valve H is opened; and the drum rotates during the whole time that the valve is kept open. The curved perforated wall Q, forming a diffusor-shaped space below drum F, aids the separation of solid matter from the solvent. The degree of friction between blade M and the surface of the drum may be adjusted by counterweight N and/or spring N'. The drum may be made of perforated metal sheet or wire net.
Patent GB-1285690-A (GB)
Title: Bromination of salicylanilide
IPC: C07C67/00
Filed: 1970-10-09
Abstract: 1285690 3,4<SP>1</SP>,5  -  Tribromosalicylanilide STERLING DRUG Inc 9 Oct 1970 [20 Oct 1969] 48218/70 Heading C2C  34<SP>1</SP>,5 - Tribromosalicylanilide essentially free of 4<SP>1</SP>,5-dibromosalicylanilide and 2<SP>1</SP>,3,4<SP>1</SP>,5-tetrabromosalicylanilide is obtained by reacting salicylanilide with approximately three equivalents of Br 2  in an inert reaction medium consisting of approximately 3À5 to 7À0 parts by weight of chlorobenzene, approximately 2À5 to 7À5  parts by weight of water, and approximately 0À02 to 1À5 parts by weight of one or a mixture of surface active agents for each part by weight of salicylanilide. Specified surface active agents are anionic, nonionic or cationic agents. Examples are given for the production of the compound.
Patent GB-1159256-A (GB)
Title: Process for the Selective Hydrogenation of C4-Fractions
IPC: B01J23/44
Filed: 1966-10-27
Abstract: 1,159,256. Hydrogenation catalysts. FARBENFABRIKEN BAYER A.G. 27 Oct., 1966 [30 Nov., 1965], No. 48271/66. Heading B1E. [Also in Divisions C1 and C5] Selective hydrogenation catalysts comprise 0.05-2 wt% palladium on a support comprising at least 20 wt% of lithium aluminium spinel. The support may also contain alumina, silica or silicates.
Patent GB-1207312-A (GB)
Title: A new or improved horticultural hoe
Inventor: LESTER HERBERT WILLIAM
IPC: A01B1/08
Filed: 1966-10-28
Abstract: 1,207,312. Horticultural hoe. H. W. LESTER. 30 Oct., 1967 [28 Oct., 1966], No. 48349/66. Heading A1B. A hoe 1 is provided with a pivoted arm 4 which is pressed against the hoe blade 1 by means of a handle 11 to grip and lift weeds dug by the hoe blade. The handle 11 is connected to the arm 4 by means of a link 10 and a spring 13 is used to retain the arm 4 in the position shown.
Patent GB-1015829-A (GB)
Title: Power plant including a gas turbine jet propulsion engine
Inventor: RODGERS LEONARD JOHN
IPC: B64C29/00
Filed: 1964-11-30
Abstract: 1,015,829. Jet-propelled aircraft. ROLLSROYCE Ltd. Nov. 30, 1964, No. 48674/64. Heading B7G. [Also in Division F1] A gas-turbine jet-propulsion engine is disposed within an engine housing and the exhaust duct of the engine is provided with a corrugated, fluted or lobed nozzle so as to mix more efficiently the exhaust gases flowing through the nozzle with ambient air flowing through the housing and over the nozzle thereby reducing the noise of the exhaust gases and augmenting the thrust of the engine. The housing is provided with a plurality of side flaps which are movable between a first position in which they merge with and form smooth continuations of the housing, and a second position in which they uncover apertures leading air into the housing and over the nozzle. The invention is described with reference to a vertical lift engine comprising compressor 15, combustion equipment 16, turbine 17 and exhaust duct 18, a nozzle 20 of corrugated, fluted or lobed form being mounted at the downstream end of the exhaust duct. The engine is disposed within a housing 14. A plurality of flaps 27, 28 are pivotally mounted at 23, 24 at the downstream end of the housing 14 and are movable between two positions, the first of which is shown in broken lines in which the flaps form smooth continuations of the housing 14, and the second of which is shown in full lines in which the flaps act as scoops to lead air into the housing and over the nozzle. A further series of flaps 25, 26 is also pivotally mounted at 23, 24 and are movable between the position shown in broken lines in which they block the nozzle outlet and that shown in full lines in which they unblock the nozzle outlet and form smooth continuations of the housing 14. A further series of flaps 21, 22 are pivotally mounted at the upstream end of the housing 14 and are movable between the position shown in dotted lines in which they block the engine intake and the position shown in full lines in which they unblock the intake and form smooth continuations of the housing.
Patent GB-1348446-A (GB)
Title: Bladed diaphragm structure for an axial flow machine
IPC: F01D11/00
Filed: 1972-10-23
Abstract: 1348446 Making bladed diaphragms WESTINGHOUSE ELECTRIC CO 23 Oct 1972 [1 Dec 1971] 48680/72 Heading B3A [Also in Division F1] A bladed diaphragm for an axial flow turbine or compressor is made by drilling a pair of diametrically opposed radial holes in a ring together with similar holes in a disc, aligning the holes in the ring and disc, welding stator blades between the ring and disc, and then sawing the assembly along a plane P-P<SP>1</SP> coinciding with the holes to form upper and lower diaphragm segments 16a, 16b having part-circular grooves 29a, 29b and 31a, 31b in the mating faces. To facilitate retention of cylindrical sealing rods 30, 33 in the lower grooves 29b, 31b the dividing plane P-P<SP>1</SP> is slightly above the diaphragm centre C so that the lower grooves are deeper than upper grooves 29a, 31a.
Patent GB-1393392-A (GB)
Title: Wave guide transition fitting
IPC: H01P5/08
Filed: 1972-04-17
Abstract: 1393392 Waveguide accessories G SPINNER 17 April 1972 48730/74 Divided out of 1393391 Heading H1W A transition fitting for interposition between an oval waveguide and a rectangular waveguide comprises a matched frusto-conical transition zone 36 formed with annular recesses which may be rounded, 38, or cylindrically stepped, 40.
Patent GB-1118469-A (GB)
Title: Olefin copolymers
IPC: C08F210/00
Filed: 1965-11-17
Abstract: Copolymers of a cycloalkadienonorbornene and, optionally dicyclopentadiene with ethylene and an aliphatic alpha olefin of the general formula R-CH = CH2, where R is a C1 to C6 alkyl group are made by copolymerizing a mixture of the monomers in the presence of a halogen-containing catalyst obtained from a vanadium compound and beryllium or aluminium organometallic compounds.  The Specification contains long lists of suitable catalyst components. The preferred norbornene is 5,6-cyclododecadieno - 41,81 - norbornene - 2, and the alpha-olefin, propylene and/or butene-1.  The catalyst preparation and the copolymerization are preferably effected between 0 DEG  and - 80 DEG  C. The copolymerization may be carried out in bulk, or in a hydrocarbon or halogenated hydrocarbon solvent.  The copolymers, soluble in boiling n-heptane, are recovered by conventional low-pressure techniques.  The copolymers may be sulphur vulcanized and are then insoluble in organic solvents.
Patent GB-1241059-A (GB)
Title: Improvements in or relating to folding machines
Inventor: LIEBRANDT KARL
IPC: B65H45/18
Filed: 1968-10-16
Abstract: 1,241,059. Feeding and folding sheets. K. LIEBRANDT. 16 Oct., 1968 [11 Nov., 1967], No. 49151/68. Heading B8R. A blade B for folding sheets 12 fed from a stack by a suction roller 11 is reciprocated vertically by an eccentric 3 on a drive shaft carrying a cam 5 coupled to the shaft by a permanent magnet 6, the cam actuating a switch 9 controlling the suction in the roller 11. In operation, each sheet is fed to a position A adjacent the blade, when the suction is relaxed by the cam. By pressing a button 8 to energize an electromagnet 7, the coupling is broken and the phase of the blade movement is adjusted by a handwheel and the button released.
Patent GB-1110529-A (GB)
Title: Improvements in or relating to the sterilization of beatable wheat protein suspensions
IPC: A23P30/40
Filed: 1966-11-03
Abstract: Beatable wheat-protein suspensions consisting of denatured wheat gluten in an aqueous suspension adjusted to a pH value of 3.7 to 4.9 by means of a food acid in accordance with the parent Specification, are sterilized by heating to 100-130 DEG C. without loss of beatability occurring.
Patent GB-1200098-A (GB)
Title: Improvements in or relating to railway power bogies
Inventor: STEIN ROBERT ELMER
IPC: B61F3/06
Filed: 1967-10-31
Abstract: 1,200,098. Railway vehicle undercarriages. GENERAL STEEL INDUSTRIES Inc. 31 Oct., 1967, No. 49321/67. Heading B7L. A railway power bogie comprises axles 1, 2, 3, Figs. 1 and 2, carrying wheels 5; side frame members ] 1 having pedestal legs 9 embracing axle boxes 7 which support the members 11 through springs 13; transverse transoms 15, 17 between axle pairs 1, 2 and 2, 3, rigidly connecting the side frame members 11; and a bolster 27, Fig. 3, supported at its ends on springs 25, in turn supported by rubber-metal interleaved sandwich springs 21 on brackets 19 extending outwardly of the transom 17 past both side members 11. The bolster has a central circular aperture 47 to receive for relative vertical movement only, a vertical cylindrical post 49 depending from a vehicle underframe U the post 49 having an axial extension engaging, at substantially the level of the axles, in a circular aperture 49, Fig. 5, in a block 51 engaging in a rectangular aperture 57 formed in the transom 17. The block is retained on the post 49 by a flange 53 and can only move vertically and transversely relative to the transom 17. The body underframe U is provided with shoes 35 slidably engaging surfaces 31 on the bolster 27 and shoes 43 resiliently-urged by spring plungers 39 to slidably engage surfaces 33 provided at the junctions of the side frame members 11 with the transom 15. In another embodiment the bolster is omitted and slide surfaces are also then provided at the junctions between the members 11 and the transom 17, and engaged by spring-urged shoes on the underframe U. The post on the underframe also passes through an upper block free from all vertical sides of the transom aperture and centred transversely therein by rubber-metal interleaved springs. In yet another embodiment the slide surfaces are provided at the ends of the legs of an X-shaped bolster and are engaged by rigid shoes on the body underframe. Two posts depend from the underframe and are spaced centrally and longitudinally of the bogie frame, one engaging in a block slidable longitudinally in the bolster and the other engaging in the aperture in the transom 17 in the manner previously disclosed.
Patent GB-1448420-A (GB)
Title: Apparatus for fixing electrophotographic images
IPC: G03G15/20
Filed: 1974-11-15
Abstract: 1448420 Fixing electro-photographic images WIFO WISSENSCHAFTLICHES FORSCHUNGSINSTITUT AG 15 Nov 1974 [16 Nov 1973] 49564/74 Heading G2H A fusing apparatus for fixing electrophotographic images comprises a planar heater 7  mounted on projections 9 of, and heated by element 3 and positioned above a transport belt 5. A corona discharge 12 or vacuum source (not shown) attracts a copy sheet to the upper run 16 of the belt 5. The gap 40 above the run 16 is adjustable, and a thermal sensor 10 controls the temperature. A further heater 17 is provided between the runs of the belt 5. In other embodiments a diaphragm pump or rotating fan is positioned in part 1 to improve air-flow through holes (not shown) in heater 7 which may itself be oscillated and may comprise parallel bars bridged by heating coils, or may be corrugated.
Patent GB-1449821-A (GB)
Title: Aqueous compositions
IPC: C09K23/42
Filed: 1972-10-27
Abstract: 1449821 Additive for glazes IMPERIAL CHEMICAL INDUSTRIES Ltd 15 Oct 1973 [27 Oct 1972] 49584/72 Heading C1M [Also in Divisions A5 C5 and D1] Pottery plates printed with resin based decorative transfers are glazed using a glaze slurry containing 0À2% by weight of a mixture consisting of 25% (by weight) of the sodium salt of sulphonated methyl oleate, 10% of dodecyl alcohol/3 moles ethylene oxide condensate, and 65% water. Reference has been directed by the Comptroller to Specification 1,323,697.
Patent GB-1305840-A (GB)
IPC: E05B65/32
Filed: 1971-10-28
Abstract: 1305840 Latches GENERAL MOTORS CORP 28 Oct 1971 [28 Oct 1970] 50183/71 Heading E2A A closure latch comprises in combination a latch bolt 22 moveable between latching and unlatching positions, a detent 50 swingable between bolt engaging and bolt releasing positions and including an engagable portion 56, a locking lever 114 swingable about an axis transverse on the detent axis between locking and unlocking positions and including a slot 140 therein generally following a path described about the detent axis when the locking lever is in unlocking position, a swingable operating lever 70 adapted to be operated by inside and outside handles and an intermittent member 106 swingably supported by the operating lever for translation thereby and swing- ing movement relative thereto the intermittent member including a portion 112 received within the slot of the locking lever and located in the path of movement of the engagable portion of the detent when the locking lever is in unlocking position, the slot in the locking lever guiding the intermittent member along such path upon movement of the intermittent member by the operating lever to thereby move the detent between bolt operating and bolt releasing positions. In the construction shown the latch bolt is bifurcated and it is held either in the full latching position or in a secondary latching position by the engagement of the detent with a shoulder 58 or a shoulder 60 of the bolt respectively. The outside handle moves the operating lever 70 via a rod (not shown) which engages a lateral tab 76 and the inside handles moves the operating lever via a bell crank lever 86 which is connected by a rod with the inside handle. The locking lever is moved either by a cylinder lock mechanism which is connected to a flange 116 of the lever or by an inside button which is connected to a flange 118 of the lever by a rod. When the locking lever is in the locking position the intermittent member is pivoted so that its extension is above the end of the engageable portion of the detent so that operation of either the inside or the outside handle is ineffective to operate the detent.
Patent GB-1279465-A (GB)
Title: Production of light-conducting fibres
IPC: C03C23/00
Filed: 1969-10-16
Abstract: 1279465 Light-conducting glass fibres NIPPON SELFOC KK 16 Oct 1969 [25 Oct 1968] 50842/69 Heading C1M In producing a light-conducting glass fibre a borosilicate glass fibre is prepared and caused to undergo phase separation into a SiO 2  phase and a B 2 O 3 .R 2 O phase (where R is a monovalent metal); the fibre is then exposed to an agent in which the B 2 O 3 .R 2 O phase is soluble so as to cause elution of this phase from the fibre surface, and the fibre subsequently held at a temperature above its strain point to remove pores on the fibre surface and to cause migration of some of the remainder of the B 2 O 3 .R 2 O phase from the centre of the fibre towards the surface, thereby to establish in the fibre a refractive index distribution wherein, in any crosssection perpendicular to the central axis of the fibre, the index decreases continuously from central axis to the surface. The oxide R 2 O may be Tl 2 O or an alkali metal oxide, and preferably the initial glass comprises at least 60% by weight SiO 2 . A suitable glass consists of (weight per cent) SiO 2  72À5, B 2 O 3  20À5, Na 2 O 7À0, and may be caused to undergo phase separation by holding for 1 hour at 600‹ C. The eluting agent may be water, an acid or a base. The acid (e.g. HCl, H 2 SO 4 , HNO 3 ) may be saturated with a salt (e.g. NH 4 Cl, alkali metal halides or sulphates), preferably one whose anion is the same as that of the acid.
Patent GB-1464934-A (GB)
Title: Optical character recognition video amplifier and digitizer
IPC: G06V30/10
Filed: 1974-11-26
Abstract: 1464934 Thresholding circuit MOHAWK DATA SCIENCES CORP 26 Nov 1974 [29 Nov 1973] 51228/74 Heading G4R [Also in Division H3T] An optical character recognition apparatus has an array of photo diodes 18 scanning characters and producing a series of signals, and a thresholding circuit. Characters are moved past a window 12 and a slice of the character is focused on the photo diode array containing e.g. 64 diodes arranged in a line. Clock pulses # 1 and #2 each having signals 180 degrees out of phase with each other are used to successively scan the photo diodes to supply a serial signal to a video amplifier 31. The amplified signals feed an amplifier 32 containing a low pass filter (Fig. 2A, not shown). The filtered signal feeds two storage devices one of which 33 stores a peak positive level corresponding to the white background of a document being scanned, the other of which 34 stores a peak negative signal corresponding to the black characters on the document. The two storage devices feed a resistive divider forming an average threshold the value of which is limited in the positive direction by circuit 37 and the average threshold feeds a comparator 38 which digitizes the amplified and filtered signal. The storage device 33 feeds an automatic level control 39 which provides a negative feedback of about one tenth of the "white" level to the amplifier and filter 32. A signal 40 is used to periodically discharge the "black" level storage device 34 so that it can be reset to a new level by the next character.
Patent GB-1270360-A (GB)
Title: Prosthetic heart valve
Inventor: RAPP RICHARD KUEBLER
IPC: F16K15/03
Filed: 1970-11-04
Abstract: 1,270,360. Heart valves. R. K. RAPP. 4 Nov., 1970 [28 Nov., 1969; 15 Sept., 1970], No. 52384/70. Heading A5R. [Also in Division F2] A prosthetic heart valve has four closure flaps 22 (or 122 pivotable about axes parallel to the sides of a rectangular opening 17 (or 117). The flaps are supported on Y-shaped pins 23 each having their stem secured to the valve housing and their branches received in adjacent corners of two flaps. The apices of the flaps have concavities complimentary to the underside of a central seat 19 (119) with which the apices engage in the closed position. The seat (19) (119), which may be conical, elliptical or spherical, is carried by support wires 21 (120) and, in the case of the wires 21, these are cooperable with grooves 25 in the flaps for final guidance purposes. The flaps can be of sinusoidal form (Fig. 1), or of aerofoil form (Fig. 5) tapering in thickness to the apex and to the sides. In Fig. 1, the valve housing has porous and impervious parts 13, 14 bonded together with or without a metallised interlayer 15, whereas in Fig. 5 a polyethylene terephthalate or p.t.f.e. cloth layer 115 is attached to a roughened surface of the housing to allow the housing to be sutured in place. A similar cloth layer can be used with the Fig. 1 embodiment to allow the housing to be held in place until the tissues grow into the porous outer surface. The housing and flaps are preferably of vitrefied carbon or aluminium oxide, both of which can be porous or impervious; other suitable materials include high chromium stainless steel, titanium, glass-reinforced polyesters, epoxy resins, acrylic resins, polycarbonate resins, formaldehyde polymers and polyamides. The pivot pins, the central seat and the supports for the latter are preferably of Vitallium (T.M.). In use, the blood washes both sides of the flaps and this, together with the profile of the flow passage, minimises stagnation such as might cause blood clotting.