baber/WOPTO huggingface dataset:
Patent GB-1449189-A (GB)
Title: Process for preparation of phthalic acids
IPC: C07C63/15
Filed: 1973-12-14
Abstract: 1449189 Preparation of phthalic acids HALCON INTERNATIONAL Inc 14 Dec 1973 [14 Dec 1972] 57996/73 Heading C2C A process for the oxidation of meta- and/or para-xylene to the corresponding phthalic acid or mixture of phthalic acids comprises: (a) oxidizing the xylene with molecular oxygen in the presence of an oxidation catalyst in the liquid phase within a first oxidation zone until from 2% to not in excess of 70% of the xylene has been converted to an oxidate comprising unreacted xylene, toluic acid and oxygencontaining C 8  aromatic compounds, less completely oxidized than toluic acid; (b) removing at least a predominant proportion of unconverted xylene from the oxidate to recover a concentrated oxidate comprising the toluic acid and the oxygen-containing C 8  aromatic compounds, less completely oxidized than toluic acid; (c) further oxidizing in the liquid phase, the concentrated oxidate and molecular oxygen into a second oxidation zone containing a C 2  to C 6  aliphatic carboxylic acid solvent and an oxidation catalyst dissolved within the solvent, said second oxidation zone being maintained at a temperature within the range of from 50 to 150 C. and an oxygen partial pressure of at least 0À1 atmospheres absolute being maintained within said second oxidation zone; (a) withdrawing from said second oxidation zone a slurry of the phthalic acid product in the carboxylic acid solvent; and (e) recovering the phthalic acid product from the slurry.
Patent GB-1335059-A (GB)
Title: Method for producing a photographic element
IPC: G03C8/52
Filed: 1970-12-07
Abstract: 1335059 Photographic elements FUJI PHOTO FILM CO Ltd 7 Dec 1970 [8 Dec 1969 11 March 1970] 58119/70 Heading G2C [Also in Division B2] A photographic element is produced by biaxially stretching a polystyrene support, roughening the surface of said support, treating the roughened surface with corona discharge or electron irradiation and applying a gelatine layer to said surface. The roughening of the support surface may be effected by abrasion, or may include whitening of the surface by a) the incorporation of a foaming agent such as normal alkane capable of generating a gas on heating, or b) the treatment of the surface with a first organic solvent capable of swelling the surface followed by a second organic solvent miscible with the first but in which the polystyrene is insoluble. The polystyrene may include pigments e.g. TiO 2  or BaSO 4 , and the gelatine layer may be a simple gelatine subbing layer for an emulsion layer, a gelatino silver halide emulsion layer or a layer containing development nuclei for the silver salt diffusion process. Reference has been directed by the Comptroller to Specification 1237475
Patent GB-1109539-A (GB)
Title: New pyridoxine derivative, process for its preparation and therapeutic composition containing same
IPC: A61K31/44
Filed: 1966-12-29
Abstract: A novel nucleophilic adduct of pyridoxine on the aldehyde carbonyl grouping of glyoxylic acid of empirical formula C10H13NO6 and probably of the structural formula <FORM:1109539/C2/1> or <FORM:1109539/C2/2> is prepared by reacting together substantially stoichiometrically equivalent amounts of glyoxylic acid and pyridoxine.  Pharmaceutical compositions comprise as active ingredient an adduct of pyridoxine and glyoxylic acid as above define on a pharmaceutically acceptable vehicle.  The compositions may be formulated in unit dosage form for parenteral, oral or rectal administration.  The compositions are stated to be useful in the treatment of arterial and veinous circulatory disorders.
Patent GB-1372733-A (GB)
Title: Fastening device
IPC: F16G11/00
Filed: 1971-12-15
Abstract: 1372733 Fastening devices D COLEMAN 15 Dec 1971 58219/71 Addition to 1316326 Heading E2A A fastening device comprises a block of rigid material having a pair of spaced apart opposite faces a first opening 3 extending through the block normal to the faces, at least two passages 4, 5 extending through the block between said first opening and the edge of the block and further openings 7, 8 corresponding to the number of passages extending through the block normal to the faces. The fastening device is intended for securing two flexible lines 10, 11 together the lines being attached to a block as shown in Figure 1. Blocks with 3 and 4 passages and 3 or 4 further openings are also disclosed.
Patent GB-1175830-A (GB)
Title: Improvements in or relating to Artificial Hands
IPC: A61F2/58
Filed: 1966-12-30
Abstract: 1,175,830. Artificial hands. MOSKOVSKY ZAVOD PROTEZNYKH POLYFABRIKATON IMENI N.A. SEMASHKO. 30 Dec., 1966 [30 Dec., 1965], No. 58296/66. Heading A5R. An artificial hand comprises a thumb 2 and fingers 3 articulated to a palm 1, the palm housing an actuator member 9 connected to a disc 11 which is connected to the fingers, there being a roller 19 mounted in guides secured to the palm and movable in the guides against a spring 20, the actuator member, when a cord 10 is pulled, causing the roller 19 to move by means of a ratchet wheel 21 having a cam which acts upon the roller, the ratchet wheel being mounted in the guides in such a manner as to be displaceable therein to disengage it from a pawl on the actuating member. As shown, the thumb 2 and fingers 3 are connected to the disc 11 by levers 5, 14 such that when the disc is rotated clockwise (Figure 1) the thumb and fingers are brought together against a spring 7 in a gripping action. The actuator member 9 is provided with a pawl 16 which, when the member 9 is rotated, engages and rotates the ratchet wheel 21 so that a cam surface on the wheel acts through an intermediate member 22 to move the spring loaded roller 19 in the guides 17 against its spring. With the spring extended against the roller, the roller wedges the disc against anticlockwise rotation whereas with the cam of the ratchet wheel bearing on the roller the disc is entirely free to rotate. In use, when the cord 10 is pulled, the actuator element 9 rotates and, via the pawl 16 and cam surface on the ratchet, the roller locks the disc against anticlockwise rotation and thus the fingers and thumb from loosening a grip. A second pull on the cord 10 causes the actuator member 9 to rotate further and cams 12, 13 on the member 9 and disc 11 inter-engage so that the disc rotates clockwise and, via the levers 5, 14, causes the thumb and fingers to move together in a gripping action. To re-open the hand, a further pull on the cord 10 causes the pawl 16 to actuate the cammed ratchet wheel again so as to cause the roller 19 to be released from wedging engagement with the disc 11, the spring 7 then causing the hand to re-open. The hand also includes a button 28 which, when moved, through a connection 25 lifts the ratchet wheel so that the roller cannot be forced against the disc.
Patent GB-1236877-A (GB)
Title: Improvements in or relating to a disc brake
Inventor: HAUTH JEAN-MARC
IPC: F16D55/224
Filed: 1969-12-05
Abstract: 1,236,877. Spot-type disc brakes for railway vehicles. CENTRE DE RECHERCHES DE PONT-A-MOUSSON. 5 Dec., 1969 [27 Jan., 1969], No. 59439/69. Heading F2E. In a disc brake for a vehicle wheel having a friction element carrier located on each side of a brake disc and suspended from the chassis of the vehicle by a suspension link on each side, the friction element carriers 4, 5 are connected by a rigid yoke 8 which supports an actuator V for the friction element carriers, and the subassembly thus constituted is suspended from the chassis by the links 10, 11 which are pivoted to a compensation member 12 which is itself pivoted to the chassis, the axes of all the pivots 13 to 17 being horizontal and parallel to the disc 2. Preferably, the friction element carriers 4, 5 are pivoted to the yoke 8 by pivot pins 6, 7, Fig. 3, plan, parallel to the disc 2 and orthogonal to the pivot pins 13, 14, Fig. 1, connecting the links to the compensation member. Preferably it is a girder A of one of the bogies to which the compensation member 12 is pivoted. In operation, actuating fluid is supplied at 23 to the region between the right-hand end of a core 21, bearing against end wall 22 of cylinder 9 of actuator V, and the closed end of a cupshaped piston 19 slidable in a bushing 18 in cylinder 9. Piston 19 is forced outwards to apply friction pads 4a through carrier 4 and cylinder 9 by reaction applies friction pads 5a through yoke 8 and carrier 5.
Patent GB-1255021-A (GB)
Title: Guide means for use in joining belt ends together by means of belt fasteners
Inventor: FRYATT LESLIE ALVA
IPC: F16G3/00
Filed: 1968-07-26
Abstract: 1,255,021. Belt fastenings. MASTABAR BELTFASTENERS Ltd. 25 July, 1969 [26 July, 1968; 17 Dec., 1968], Nos. 35695/68 and 59907/68. Heading F2Q. A guide for propelling a threading member 4, 5, 6 for insertion of a flexible hinge pin 9 through the interdigitated loops of belt fasteners 7 secured to belt ends 8 to be joined, comprises spaced members 10, 12 (Fig. 1) or 20 (Fig. 4) contacting the external upper and lower surfaces of the fasteners 7 and acting on an abutment 5 on the threading member 4, 5, 6 when the latter is disposed therebetween. The threading member is a needle having parallel end portions 4, 6 and a centre portion 5 inclined at 45 degrees thereto, an eye in the portion 6 receiving the hinge pin 9, which is preferably a double cord of nylon. In Figs. 1, 2, the guide comprises parallel plates 10, 11 joined together by a wedgeshaped post 13. A roller 12 on the plate 11 presses the fasteners against the plate 10, which is shaped to match the needle 4, 5, 6 contour. As the guide is pulled along by handle 14, the roller 12 and plate 10 together draw the needle 4, 5, 6 with them. In Figs. 4, 5, rollers 20 on arms 18, 19 form the guide members, the fasteners 27 being guided by convergent slots 21, in opposite sides of a block 17. The belts comprise felt 26 secured to edge strips 25 of webbing in which the fasteners 27 are secured. A flap 25a of the webbing is guided by guide bosses 23, the webbing passing between the bosses 23 and rollers 24. The arm 18 may be pivoted clear, and is normally held in its operative position by a turn-button 29. In a modification (Fig. 8) the bosses 23 and rollers 24 are replaced by guides 30 having flanges 32 tapered in plan (Fig. 7, not shown) which engage the rear ends of the fasteners 7 to hold the loops of the fasteners in interengagement while the needle is inserted therethrough.
Patent GB-1330700-A (GB)
Title: Real time fast fourier transform processor with sequential access memory
IPC: G06F7/76
Filed: 1970-12-29
Abstract: 1330700 Fourier transform calculators THOMSON-CSF 29 Dec 1970 [31 Dec 1969] 61682/70 Heading G4A A real time system for determining the discrete Fourier transform coefficients of an input signal employs the fast Fourier transform itera. tive technique. The real and imaginary parts of the complex signal samples of the input signal are passed to respective sections of a calculator performing the iterative functions. The calculator sections each comprise a pair of serial access stores. One store of each pair is stepped at twice the rate of the other, the stepping rates being reversed at each iteration. As described the input signal E is sampled in a circuit, Fig. 2 (not shown), which outputs N = 2<SP>n</SP> real and imaginary multi-bit signal samples. The real and imaginary parts of the samples are passed to a respective processing channel. Each channel comprises a serial access memory 3, Fig. 3, and a calculator section C. The samples are passed under the control of switches 41 and 42 to one or other of shift registers (serial access stores) 51, 52. When one register is stepped at a rate 2f the other is stepped at rate f, the stepping rates of each register alternating between f and 2f. The timing is such that the signal samples are applied first to the fast register. Successive iterations are then applied alternatingly to whichever register is currently slow. During each iteration successive pairs of samples X, Y, spaced by N/2, are read from the slow register and fed to adder 61 and subtractor 62. A new word U = X + Y is formed from each pair of samples and fed to one stage of the other (fast) register. Another new word V is formed by multiplying the difference X-Y by a complex reference signal W = exp. (2i#/n), V being fed to the stage adjacent that containing U. The multiplier and the complex number synthesizer are common to both sections of the calculator. At the end of this iteration the fast register will contain N words such as U and V, and the slow register will be empty. During the next iteration calculation proceeds in the same manner, now using words spaced by N/2 read from the previously fast, now slow, register. During the n<SP>th</SP> iteration switch 48 cycles between its two inputs at rate 2f, so passing U and V alternately to the output. This succession of signals A (k) is the N coefficients but in the reverse of the natural order. Each calculator may be followed by a reversing circuit, Fig. 5 (not shown), which presents the coefficients in their natural order. In an alternative arrangement, Fig. 6 (not shown), the reversing circuit precedes the calculator, the calculator being suitably modified to produce the coefficients in the natural order. In another arrangement, apparatus both according to Fig. 3 and to Fig. 6 is used, with the shift registers 51, 52 being common to both. This provides the coefficients simultaneously in both the natural and the reverse order.
Patent GB-650340-A (GB)
Abstract: 650,340. Jigs. PATTERSON; I. L. July 8, 1948, No. 18431. [Class 82(ii)] A jig is provided with impact mechanism comprising a hammer member mounted for movement independently of the screen to impart percussion blows to the screen whilst separation is in progress, to obviate or reduce blinding. In Fig. 1, the hammer member is a weight 20 driven by a cam 24 on the plunger shaft 14, whereas in Fig. 2 it is in the form of a lever 22 spring-pressed at 28 towards a striker pin 30 engaging the screen, and retractable by a cam 24. In either case, the screen is resiliently mounted, by means of rubber pads 18, Fig. 1, or resilient packing 33, Fig. 2. The blows may be normal to the screen as in Fig. 1, or in the same plane or parallel with the plane of the screen, as in Fig. 2, or blows may be imparted in several directions simultaneously.
Patent GB-659333-A (GB)
IPC: F26B3/30
Abstract: 659,333. Drying paper webs. GAMBLE, H. April 12, 1949, No. 9848. [Class 34(i)] A coated paper web 1 passes over lamps 2 arranged in boxes 3, 4 on one or both sides of the web, at least one of the boxes being hinged so as to be movable in and out of the operating position. Where two boxes are employed they are connected together by pivots 5, 6 and opening levers 7 on each side of the lower box comprise a toothed quadrant 9 rotatable about the pivot 6 engaging a similar toothed quadrant 8 rotatable about the pivot 5, the levers 7 carrying a counterweight 10. Manipulation of the levers 7 causes both boxes to move about their pivots and the counterweights are so disposed that the boxes will stay in any adjusted position. When it is only desired to use lamps on one side of the paper a polished aluminium plate is placed beneath the paper, instead of the second box, to reflect the heat, the lower surface of the plate being insulated.
Patent GB-662247-A (GB)
IPC: G01B5/20
Abstract: 662,247. Gauging departure from standard form. ARMSTRONG SIDDELEY MOTORS, Ltd. March 20, 1950 [March 10, 1949], No. 12416/49. Class 106 (ii). In an apparatus for indicating the departure of the profile of an article, e.g. a cam or a turbine blade 22, from a standard, the article and standard are mounted on coaxial mutuallyrotative supports and engaged by contactmembers 27, 26 on coaxially and independently pivoted gauge arms 25, 24, and relative pivoting of the arms, consequent on a departure from standard, actuates an indicator. In the apparatus shown, the standard 18, whose outline is such as would be traced by a point associated with a roller moving over a correct turbine blade, is mounted with a graduated dial 19 (shown detached) on a spindle 15 rotatable by a knurled member 16. The support 21 for the blade 22 is adjustably screwed on to the spindle, its angular position being given by a vernier scale 20 coacting with the dial 19. The spring- urged arms 24, 25 are pivoted on a vertical pillar 23 and the arm 25 can be moved therealong and clamped by a sleeve 32, thus enabling different portions of the blade to be gauged. Where the form of the blade or other article differs for different cross-sections, a composite standard may be provided and both arms can be moved along the pillar. The arm 25 carries a rigid strip 30 which engages the plunger of a dial gauge 29 on the arm 24. The pivotal axis of the arms may be arranged at right angles to the spindle 15, e.g. for gauging the radial face of an axially operating cam.
Patent GB-694671-A (GB)
Abstract: 694,671. Endless-chain conveyers. BALLARD & CO., Ltd., F. J. Feb. 8, 1952. [Feb. 16, 1951] No. 3836/51. Class 78 (i). Thin metal sheets 15 carried by wire frames 14 upstanding from a pair of parallel chains 13 are removed therefrom and pushed into engagement with grippers 39 on a higher endless chain 27 by a ramp 16 and by a reciprocating device 42 arranged below the bottom edges of the sheets at the top of the ramp. The ramp comprises a pair of parallel bars which are pivoted at 18 and provided with means at their upper ends for adjusting their inclination. The ramp may be replaced by a moving endless belt and the grippers 39 by electro-magnetic or other magnetic holding devices. The lifting device 42 is connected to one arm of a bellcrank elever 47, the other end of which is in engagement with a cam 51 driven by a chain 13. The sheets on release from the convever 27 drop on to an inclined plate 56 which directs them on to a convever 57.
Patent GB-2000005-A (GB)
Title: Seed-Sowing Device
IPC: A01C7/18
Filed: 1978-06-20
Abstract: A seed-sowing device comprises a chassis 1 having support wheels 2, a ploughshare 100 for forming a furrow in the soil, a seed dispensing receptacle 108 having its base formed by a slidable seed-releasing shutter 111 connected to the support wheels 2 so that the shutter 111 opens to dispense the seed into the furrow and closes to receive further seed, at regular intervals of distance travelled regardless of the speed of travel of the device, and furrow closers 119. The slidable shutter 111 is connected by a sheathed cable 117 to a plunger 14 which is reciprocated vertically by the wheels 2 to punch holes in a plastics strip delivered by a roller 5. A further plastics film 103 may be laid over the seeded furrow after closing, and secured by turning soil over its edges by discs 105. <IMAGE>
Patent GB-2027816-A (GB)
Title: Centrifugal pump
IPC: F04D29/22
Filed: 1978-08-15
Abstract: Each impeller passage 38 has a constant axial depth and a gradually decreasing width W from an inlet 39 to an outlet 40, and the front and back surfaces 36, 37 of the impeller vanes 33 are in the form of circular arcs of respective radii r1, r2 and respective centres P1, P2, r1 being less than r2 and P1 being further from the impeller axis than P2. Each passage assures a flow of the fluid along the front surface of the associated vane and prevents the occurrence of a vortical flow therein. <IMAGE>
Patent GB-2018330-A (GB)
Title: Pipe shearing ram assembly for blowout preventer
IPC: E21B33/06
Filed: 1978-11-21
Abstract: A shear ram assembly for a blowout preventer has a pair of rams 24, 26 with opposed shear blades 36, 38, means for moving the shear blades 36, 38 across the pipe opening of the blowout preventer, one of the rams 24 having a shoulder 44 spaced from the shearing plane of the blades, a face seal 40 mounted in a recess 42 in the ram 24 having the shoulder 44 and positioned so that the blade 38 on the other ram 26 bends the cut pipe 46 around the shoulder 44 and then seals against said face seal 40, and means 50 for preventing metal parts from collecting in front of said face seal. The rams 24,26 may be inverted to bend the upper end of the lower pipe section. <IMAGE>
Patent GB-2013218-A (GB)
Title: Dental compositions
IPC: A61K6/90
Filed: 1979-01-18
Abstract: A novel dental composition is provided, which comprises; a combination of 8 to 92% by weight of liquid acid phosphates obtained by replacing one or two hydrogen atoms of orthophosphoric acid with alcohols having 3 to 13 carbon atoms and being essentially insoluble in water, and 92 to 8% by weight of at least one of reactive multivalent metallic salts selected from the group consisting of oxides, hydroxides, basic salts and silicates of alkaline earth metals, aluminium or heavy metals, said compounds being permitted to react with each other such that they are cured at room temperature. This composition may further contain liquid organic carboxylic acid having 6 or more carbon atoms, solid organic carboxylic acid having 5 or less carbon atoms and fluorine compounds in the form of fluorides silico fluorides titanium fluorides, and zirconium fluorides.
Patent GB-2013161-A (GB)
Title: Packaging, Storage or Display Means
IPC: A47J47/16
Filed: 1979-02-01
Abstract: Packaging, storage or display means comprises a plurality of spaced resilient members 2 fixed by one end to a substrate 1. The members 2 are moulded from skinned foamed elastomeric material, e.g. polyurethane foam. <IMAGE>
Patent GB-2042127-A (GB)
Title: Thermo-responsive valves
IPC: F02M31/07
Filed: 1979-02-02
Abstract: A thermo-responsive valve, suitable for use in an internal combustion engine air cleaner, has a valve member 2 mounted on one end of a bimetal arm 1, a resilient coupling being interposed between the valve member and the arm to damp vibrations induced therein by engine vibration or air currents. <IMAGE>
Patent GB-2018515-A (GB)
Title: A lamination stack for an electrical component and manufacture thereof
IPC: H01H11/00
Filed: 1979-04-10
Abstract: A lamination stack for an electrical component such as an arc-chute comprises laminations (1) secured at their edges to a carrier strip (2, 3) in mutually parallel spaced alignment and secured to the strip (2) by clamping between two spaced edge formations (1'a, 1'b) one of which edge formations (1'a or 1'b) is formed by a finger-like portion which is deformed towards the other edge formation (1'b or 1'a). The apparatus for manufacturing the stack receives laminations (1) in mutually parallel spaced alignment and feeds a carrier strip (2) to the securing position into transverse contact with the edge of a lamination (1) between the edge formations (1'a, 1'b). At the securing position, means (9a) is provided for deforming the finger-like portion (1'a or 1'b) towards the other edge formation (1'b or 1'a). <IMAGE>
Patent GB-2023892-A (GB)
Title: Motor drive system for reducing energy consumption of an electronic timepiece
IPC: G04C10/04
Filed: 1979-06-13
Abstract: Reduces the consumption of an electronic time piece equipped with a motor 4 driving a display unit 5. A quartz oscillator 1 feeds a supply circuit 3 through a frequency divider 2. The supply circuit 3 of the motor and its control circuit 9 periodically decrease the pulse energy supplied to the motor in response to a reference signal 8.2 provided by a reference counter say every 60 seconds. The energy then supplied to the motor is regulated as a function of the presence or absence of a signal delivered by a detection switch 7 operated by the display unit. If the detection switch does not close, compensating pulses are fed to the motor to catch up the lost seconds and the pulse energy is stepped up.