baber/WOPTO huggingface dataset:
Patent GB-535255-A (GB)
Title: Improvements in connecting rod structure
IPC: F16H21/34
Filed: 1939-09-29
Abstract: 535,255. Connecting-rods. MAWEN MOTOR CORPORATION. Sept. 29, 1939, No. 26901. Convention date, Oct. 6, 1938. [Class 122 (i)] Connecting-rods for radial engines, in which the rods have at their crank-pin ends curved feet or slippers, which slide in circular tracks on the crank-pin, are arranged to permit a limited rocking movement of the rods in relation to the tracks, so as to allow for the changing angular position of the rods. The crank-pin carries a mounting-member comprising a bushing 22, Fig. 2, keyed to or rotatable on the crank-pin 12, and having flanged retaining-rings 26, 28 fixed to its ends to provide an annular track to receive the slipper 56 of each rod 44. Inwardly projecting flanges 40, 42 on the inner ends of the rings enter grooves in the slippers to retain lubricant on the outer bearing-surfaces of the track. To permit of assembly of the parts, one crank-web 16 may be clamped to the crank-pin by a bolt 18, the other 14 being integral with the pin. To allow the slippers to rock in the track each slipper is of less thickness than the width of the track, as shown in Fig. 9, and its curved faces are eccentric with respect to each other and to the centre of the track. The outer face has a smaller radius of curvature than the outer track surface, and the inner face has a larger radius of curvature than the inner track surface. The dimensions are such that, in the limiting positions, the points of contact are short of the ends of the slipper, so that wedge-shaped oil-film spaces x, y extend from the points of contact to the ends of the slipper. Lubricant is supplied to the track through ducts 72, 72a, Fig. 2, opening through the bushing 22. In the form in which the mounting-member is free to rotate, lubricant is supplied from a central duct 72c, Fig. 7, and works outwards along the crank-pin to circular channels 76, 78, and thence through oblique holes 80, 82 to the inner bearing-surface of the track.
Patent GB-1506778-A (GB)
Title: Holders for magnetic tape cartridges in recording and/or playback apparatus
IPC: G11B23/04
Filed: 1975-06-25
Abstract: 1506778 Loading and unloading tape cartridges STAAR SA 25 June 1975 [30 July 1974] 26925/75 Heading G5R A holder 10 for holding a magnetic tape cartridge 7 in a rotary head video and audio recording/playback apparatus and for use in the insertion of the cartridge into the apparatus and its withdrawal therefrom, comprises springs 23, 24 bearing against an upper wall 11 of the holder and against a shaft (21), Fig. 4 (not shown), so that rollers 20, (201) thereon resiliently urge the cartridge against a lower wall 12 of the holder, the springs 23, 24 being positioned so as to allow the cartridge to be inserted without jamming into the holder with a door 1 of the cartridge open, and the ends of shaft (21) sliding in slots (22), (22<SP>1</SP>) in opposed side walls 13, (14) of the holder to permit movement of the rollers 20, (20<SP>1</SP>) towards and away from upper wall 11 while acted upon by the springs 23, 24, whereby such movement of the rollers causes the door 1 of the cartridge 7 to close automatically by engagement of the door with the rollers as the cartridge is withdrawn from the holder. The cartridge is of the twin, superimposed reel type, and its door is spring biased open. If the cartridge 7 is inserted with its door 1 closed, a spring cam 17 on sidewall 13 engages a knob 2 on the cartridge to release a locking hook (3), Fig. 2 (not shown), from an aperture (4) in the door 1 which is thereupon opened by its spring. During the insertion, rollers 20, (20<SP>1</SP>) are pushed upwardly by the cartridge against springs 23, 24 and then roll on the top surface of the cartridge to urge it against wall 12. As the cartridge is withdrawn the rollers 20, (20<SP>1</SP>) engage a projection (8), Figs. 1, 10 (not shown), on the door 1 to pivot the latter to the closed position, rollers 20, (20<SP>1</SP>) effecting a sudden vertically downward movement after rolling over rounded door edge (31) whereby the door is given sufficient impetus to overcome the spring bias of locking hook (3) thus ensuring complete closure. During insertion of a cartridge 7 with the door open, spring 24 guides the door 1 below rollers 20, (20<SP>1</SP>) to prevent jamming of the door between shaft (21) and upper wall 11. The holder 10 is pivoted at 15 to move the inserted cartridge to an operative position in which tape guide and drive elements extend through the bottom wall of the cartridge and a tape loop can be extracted through the open door and wrapped around the rotary head assembly.
Patent GB-1392072-A (GB)
Title: Fuel electrode for electro-chemical fuel cells
IPC: H01M4/90
Filed: 1972-06-09
Abstract: 1392072 Fuel cell electrode catalyst ROBERT BOSCH GmbH 9 June 1972 [11 June 1971] 26956/72 Heading H1B A fuel electrode contains as a catalyst a metal chelate of 5, 14-dihydro-dibenzo (5,9,14,18) tetra-aza(14)-annulene -Preferably the bound central metal atom is Co, Fe or Cu. In an example 1 mg. of the cobalt chelate (CoTAA) is mixed with acetylene black, ground to a fine powder and placed between two graphite felt discs 2 mm. thick. The electrode may be used with 2N-H 2 SO 4  or 2N-KOH electrolyte and has very high activities for the anodic oxidation of formic acid, oxalic acid, hydrozine, formaldehyde and carbon monoxide. In a second example, active carbon and CoTAA were stirred into a solution of polymethacrylic acid methyl ester in trichloroethylene and formed into an electrode by coating the paste on to a Ti-Pd disc.
Patent GB-745699-A (GB)
Title: Gunnery training apparatus
Inventor: CUTLER ALBERT ERNEST
IPC: F41J5/02
Filed: 1953-10-01
Abstract: 745,699. Photo-electric target apparatus. COMMUNICATIONS PATENTS, Ltd. Sept. 21, 1954 [Oct. 1, 1953], No. 26968/53. Class 40 (3). [Also in Group XXI] Relates to apparatus for training gunners in the firing of automatic repeating guns from aircraft in which the gunner obtains a view of a target aircraft by means of radar. According to the invention two rotating discs 10, 11, Fig. 1, provided respectively with a radial slit 18 and apertures 19, Fig. 3, produce from a beam of light from a source 8 a succession of flashes of light which are angularly displaced one to another in a manner representative of the angular dispersion of a succession of bullets from a gun, the target 20 being in the form of a light-permeable aperture in a box 21 in which is arranged a photo-electric cell so that when a flash reaches the target, a current pulse is transmitted to a pulse counting device 37, The target box 21 is mounted for vertical, transverse and longitudinal movement by means of lead-screws 24, 32, 28 operated by motors 25, 34, 29 under the control of an instructor or under control means effecting a predetermined manoeuvring of the target 20 and the electric signals applied to the motors is used also to provide or control a radar picture of the target for the gunner. A simulation gun button 6 closes a switch 7 to operate the lamp 8 which is arranged to project a beam of light of 30 degree aperture on to the rotating disc 10. The holes 19 in the disc 11, Fig. 3, are located at spaced apart positions corresponding to the normal distribution law for bullets.
Patent GB-318628-A (GB)
Title: Electric drives for carding engines
IPC: D01G15/36
Filed: 1929-09-05
Abstract: 318,628. Mond, A. L., (Maschinenfabrik Oerlikon). Sept. 5, 1929. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 8, 1929]. Carding-engines.-In an arrangement for a separate electric drive for a carding-engine the motor 1 is mounted above the carding-engine, on a bracket 3 mounted on the frame and drives the main cylinder shaft 8 through a belt 6 and the usual fast pulley 7. The motor is hinged to the bracket 3 and is supported by an adjustable spring 5 or screw. A rope pulley integral with the motor pulley 9 serves for driving the stripping-brushes.
Patent GB-339607-A (GB)
Title: A self-driving machine
IPC: F03G7/10
Filed: 1929-09-06
Abstract: 339,607. Bomal, A. J. Sept. 6, 1929. Self-driving machines.-A self-driving machine comprises a receptacle. A containing water under pressure, and tubes C, D, L, F fitted with pistons which act on a linkwork as and produce, it. is stated continuous rotation. Modifications are described.
Patent GB-841571-A (GB)
Title: A switching system for two signals of different phase relationship
Inventor: KIYASU ZEN-ITI
IPC: G11C11/20
Filed: 1956-09-05
Abstract: 841,571. Controlled non-linear inductors. NIPPON TELEGRAPH & TELEPHONE PUBLIC CORPORATION. Sept. 5, 1956, No. 27211/56. Class 40 (9). An A.C. signal of frequency f, the relative phase 0 or # of which represents a binary value, is gated by a core M, Fig. 1, which is normally biased to saturation by a D.C. voltage E, the core having signal input and output windings 1, 3 and a control winding 4 energized at a frequency 2f by an oscillator Os. Normally the degree of core saturation by E is such that the input signal f is decoupled from the output winding 3, but when a coincidence controlling frequency 2f is applied to winding 4 having maximum values corresponding in time position to those of the signal f, the core is partially desaturated by the flux peaks and produces an output waveform of the fundamental frequency, the phase of the output corresponding to that of the input signal. This wave may be converted into sinusoidal form by a filter, a resonance circuit tuned to frequency f or a parametrically-excited resonator. It is stated that the controlling frequency may be other even multiples of frequency f, such as 4f, 6f, 8f, or ¢f, “f, 1/6f, and that saturable barium titanate capacitors may alternatively be used. An arrangement is described, Fig. 4, in which cores M1, M2 biased by windings 41, 42, have their output windings 31, 32 connected to a parametrically-excited resonator P3. The input windings 1 1 , 1 2  are associated with parametrically-excited resonators P1, P2 having an output frequency of f and respective phases differing by 180 degrees, and a signal from one resonator or the other is coupled by a core to P3 according to the oscillation phase 0 or # of a resonator P0 which produces an output frequency 2f in response to a signal s. The core selection is determined by the interaction of this frequency 2f in windings 2 1 , 2 2  with an output from a resonator PO<SP>1</SP> which is applied to windings 2 1 <SP>1</SP>, 2 2 <SP>1</SP> and has the same frequency and a constant predetermined phase relationship.
Patent GB-717463-A (GB)
Title: Improvements in or relating to an oxidic material bonded with silicon nitride
IPC: C04B35/63
Filed: 1952-10-29
Abstract: Compositions suitable for refractories and abrasives are made by firing in a non-oxidizing atmosphere containing nitrogen a mixture of a refractory oxidic material and finely divided silicon.  A bond of silicon nitride is formed.  The mixture may be shaped before firing or briquettes made and, after firing, ground to give loose granules of silicon nitride bonded oxidic material which may be subsequently bonded by sintered metals, vitreous or ceramic bonds.  A temporary binder, e.g. dextrin, is used in shaping.  Refractory oxidic material is defined and specified materials are the oxides of aluminium, beryllium, thorium, chromium, zirconium, magnesium, silicon and silicates aluminates, spinels and porcelains.  Preferably at least 25 per cent. silicon nitride is present.  The compositions can be made more porous by the addition of pore formers, e.g. naphthalene is added and subsequently burned out, or a gas generating agent is included.
Patent GB-891909-A (GB)
Title: Method of and device for welding plastics
IPC: B29C65/38
Filed: 1959-08-10
Abstract: 891,909. Heating plastics by electric resistances. KARL MAGERLE. Aug. 10, 1959 [Aug. 9, 1958], No. 27243/59. Class 39(3) In apparatus for welding plastic sheet along a predetermined welding line, especially along curved lines such as circles, rectangles or ovals in which pressing members are provided with an electrically heated conductor energized by current pulses, the energization circuits are so connected that the electrical conductor is energized in portions between two sets of spaced points which overlap in space at consecutive time intervals so that the whole of the conductor is heated. In this way welding of the plastic sheeting in the welding press is more uniform along the length of the curved line which may be the circular bottom of a cylindrical container. Preferably the heater element 1, Fig. 1, is circular and is supplied at points 6, 7, 9, 10 by respective secondary halves of a transformer, 5 and 8 being switching devices such as relays. The heating element 1 may be preheated by a short duration low amplitude pulse. Switching control unit 12 is controlled automatically or manually. There may be more than one current pulse in each energization interval. Welding may be along other shaped lines, closed, Fig. 4, (not shown) or open Fig. 5, (not shown) to compensate for the thermal expansion of the heater the frame 35, Fig. 6 is a support which applies pressure and 37 is the current connection to heating element 38 which 'floats' on 'elastic' support 39. A protective covering 40 of heat resisting 'elastic' material is held by a clamp 41. A similar arrangement in which the heating element has two leads secured together at their lower ends is described with reference to Fig. 7 (not shown).
Patent GB-1508735-A (GB)
Title: Digital reference matrix apparatus for word verification
IPC: G06V30/10
Filed: 1976-06-30
Abstract: 1508735 Verifying INTERNATIONAL BUSINESS MACHINES CORP 30 June 1976 [16 July 1975] 27310/76 Addition to 1499734 Headings G4A and G4R To verify input words as valid, each input character N is converted to a number L N  (in memory 10, Fig. 1), squared (in multiplier 12) and a magnitude #L<SP>2</SP> N  formed (in register 17). Simultaneously (1) each character L N  is multiplied by a unique number R N  indicating its position in the word and the sum #R N .L N  formed (in register 24) and (2) the sum #R<SP>2</SP> N  is formed (in register 34). |Y| = ##L<SP>2</SP> N  and |R| = ##R<SP>2</SP> N  are derived by square root circuits 27, 36 and the value |Y| |R| / #L N R N  fed to an arc secant calculator to derive an angle. Angles representing data words in a dictionary are stored in memory 38 at an address dependent on their magnitude #L<SP>2</SP> N  and consequently the computed magnitude is used to access the memory to read out to buffer store 45 any angle stored at that address, comparator 41 setting a flip-flop 42 if a match is found between the computed and stored angles. As described a mod 256 convention is used to store the angles and so reduce the storage space required, an index coder giving the start address for each set of 256 units. The number of angles following a stored angle is given by the last three bits of a four bit header, the first bit indicating whether or not the angle it follows relates to a value of one unit larger than the preceding value.
Patent GB-946485-A (GB)
Title: Novel sulphonamides and a process for the manufacture thereof
IPC: C07D239/46
Filed: 1961-07-28
Abstract: The invention comprises sulphonilamides of the formula: <FORM:0946485/C2/1> wherein R1 and R2 are lower alkoxy or alkenyloxy groups (the word "lower", indicating a group of 1-6 carbon atoms), pharmaceutically acceptable salts and N4 acyl derivatives of these compounds, the 4-sulphanilamido - 5 - (lower alkoxy) - 6 -halo - pyrimidines and the 4(N4-acylsulphanilamido) - 5 - (lower alkoxy) - 6 - halo - pyrimidines and the 4(N4-acylsulphanilamide) - 5 - (lower alkoxy) - 6 - halo - pyrimidines; and comprises also processes for the preparation of these compounds by either condensing a 4-halo-5-alkoxy (or alkenyloxy)-pyrimidine bearing a further halogen, alkoxy or alkenyloxy substituent in the 6-position with a benzenesulphonamide having an amino group or a group convertible to amine by reduction or hydrolysis (e.g. acetamino, ethoxycarbonylamino, nitro, nitroso or azo) in the p-position, if necessary replacing any halogen substituent present on the product by an alkoxy or alkenyloxy group, by heating with an alkali-metal alcoholate, and reducing or hydrolysing to convert any p-substituent into an amino group; or condensing a 4-amino-5,6-dialkoxy (or alkenyloxy)-pyrimidine with a benzenesulphonyl halide containing a p-substituent convertible into amino by reduction or hydrolysis, and subsequently effecting the conversion of the p-substituents. The products may be converted into salts with organic or inorganic bases such as diethanolamine or alkali or alkaline-earth metals Pharmaceutical preparations having antibacterial activity comprise the 4-sulphanilamido -5,6 - dialkoxy (or alkenyloxy) - pyrimidines of the invention, in admixture with a carrier or excipient.  The preparation may be in solid or liquid form suitable or enteral (e.g. oral) or parenteral administration e.g. as tablets, dragees, suppositories, capsules, solutions, suspensions or emulsions and may contain preserving, stabilizing, wetting or emulsifying agents, salts for varying osmotic pressure or buffers.  Specifications 946,486, 946,487 and 946,488 are referred to.
Patent GB-1437356-A (GB)
Title: Ground coil assembly of dc linear induction motor for high speed vehicle
IPC: H02K41/02
Filed: 1973-06-08
Abstract: 1437356 Electric railways JAPANESE NATIONAL RAILWAYS and HITACHI CABLE Ltd 8 June 1973 [10 June 1972 28 July 1972] 27522/73 Heading B7L [Also in Division H2] A ground coil assembly for a D.C. linear induction motor such as for a high speed train comprises a plurality of armature windings each having rectangular coils connected in series and spaced by a distance L in the direction of travel, and a plurality of induction coil windings each having a plurality of separate closed coils also spaced by a distance L, the armature windings being mutually staggered by a distance of L/n where n is the number of armature windings, and the induction coil windings being each displaced a distance of L/2n from a corresponding armature winding. In the arrangement shown wherein a vehicle 10 with a field winding 4 is elevated by; and driven by, a ground coil assembly 1, 2, the armature windings are arranged in eight sets a, b, c, d, e, f, g, h mutually staggered by L/8 along the track, and the induction coil windings 2 are arranged as four sets of closed coils a<SP>1</SP>, c<SP>1</SP>, e<SP>1</SP>, g<SP>1</SP> respectively displaced by L/16 from the corresponding armature windings a, c, e, g. The embodiments of Figs. 2, 5, (not shown) respectively relate to motors with four and two armature windings, the latter having rectangular coils wound in inverse relation to one another and located at different heights. The armature coils are energized intermittently according to a predetermined sequence in each arrangement.
Patent GB-890037-A (GB)
Title: Blind rivet assembly
IPC: B21J15/06
Filed: 1960-08-09
Abstract: 890,037. Blind riveting. OLYMPIC SCREW & RIVET CORPORATION. Aug. 9, 1960 [April 28, 1960], No. 27584/60. Class 83 (4). [Also in Group XXV] A blind rivet assembly includes a headed tubular rivet 22 and a. break-off mandrel 24 which has an enlarged end 34 and has longitudinally extending circumferentially spaced ribs 40 on the shank thereof in which notches 50 are made by the gripping means 48 of a riveting tool 42. The head 26 of the rivet has a recess 32 into which metal is shaved, from the enlarged end of the mandrel, by the nose 44 of the tool, to lock the broken-off stub in the rivet. Fig. 6 shows a mandrel in which part of the ribbed shank 70 is a clearance fit in the rivet and a part 68 is an interference fit to retain the assembly during handling prior to setting. In a modification (Fig. 8) the enlarged part 88 has helical ribs. The rivet may also be set by a tool 100 in which the gripping member 102 acts on one side only of the shank and has transverse teeth 104 adapted to bite into the ribs 40 to form notches 106 therein.
Patent GB-716984-A (GB)
Title: An improvement in or relating to the treatment of carded webs of textile fibres
IPC: D01G15/50
Filed: 1951-11-24
Abstract: 716,984. Preparing fibres for spinning. HOPKINSON, H. Nov. 21, 1952 [Nov. 24, 1951], No. 27601/51. Class 120(1) A web of fibres is removed from the lower of a pair of pressure rollers a, b by .a card-clothed roller c rotated in the same direction as the lower pressure roller b, so as to carry the web upwardly and forwardly to a card-clothed roller e rotated in the opposite direction to the roller d for stripping by a fly-comb or equivalent means.
Patent GB-1184263-A (GB)
Title: Method of Producing a High Vacuum and apparatus employing this method
IPC: H01J9/385
Filed: 1968-06-11
Abstract: 1,184,263. Producing vacuum. POLSKA AKADEMIA NAUK, INSTYTUT TECHNOLOGII ELEKTRONOWEJ. June 11, 1968 [June 14, 1967], No. 27614/68. Heading F1N. A vacuum is produced by the sorption of gases on surfaces previously desorbed by electron bombardment in a rough vacuum zone. The apparatus shown comprises a chamber 12 to be evacuated, the chamber 12 containing four or any greater even number of rotary cylinders 1, 2 ... having outer surfaces which touch and are of a sorbent metallic material. The ends of the cylinders are sealed by end plates 5, 6 to define therewith the rough vacuum zone. In this zone is disposed a cathode. On rotation of the cylinders by a motor 15 driving through gears 13, gases in the chamber 12 are sorbed by the portions of the cylinder surfaces exposed thereto and these surfaces are desorbed in the rough vacuum zone by electron bombardment from the cathode. The rough vacuum zone is connected through an orifice 8 to a chamber 9 evacuated by a diffusion pump 10.
Patent GB-795639-A (GB)
Title: A process for recovering amines from the residues in the production of aromatic isocyanates
Filed: 1956-09-10
Abstract: Aromatic amines are recovered from the distillation residue obtained in the production of aromatic isocyanates by phosgenation of aromatic amines, by heating the distillation residue with water at 160 DEG -250 DEG  C.  The distillation residue is preferably mixed with the same amount by weight of water and heated for about two to four hours under sufficient pressure to keep at least part of the water used in a liquid state.  Preferably up to 1 per cent of an alkali, e.g. calcium oxide, sodium hydroxide or other alkali or alkaline earth metal hydroxides or carbonates, are added to the distillation residue-water mixture.  The resultant aqueous reaction material may be salted out while still warm with e.g. caustic soda solution, sodium chloride or sodium sulphate.  The amine may then be removed by siphoning or filtering.  Separation may also be effected by extraction with organic solvents preferably hydrocarbon mixtures or chlorinated hydrocarbon mixtures.  The cyclic ureas remaining in the residue may be worked up by heating with concentrated alkaline solutions to form the corresponding ortho-diamines.  The aromatic amines may also be isolated by venting the gas from the pressure vessel whilst the latter is hot thereby removing a large amount of the water present.  The amine may then be obtained by direct distillation. The distillation residue may also be mixed with 15-25 per cent of water of and up to 1 per cent by weight of alkali to obtain a suspension.  This mixture is then heated and the reaction mixture so obtained may be worked up by direct distillation. Examples are given illustrating the recovery of 2,4-toluylene diamine, 2,6-toluylene diamine and aniline, after the phosgenation process.