baber/WOPTO huggingface dataset:
Patent GB-1495048-A (GB)
Title: Benzoselenazole monomethincyanines
IPC: C09B23/04
Filed: 1976-03-16
Abstract: 1495048 Methine dyes CIBA-GEIGY AG 16 March 1976 [17 March 1975] 10930/75 Heading C4P Unsymmetrical methine dyes for optically sensitizing photographic silver halide emulsion and zinc oxide layers are of formula (in which R 1  and R 4  are each 1-4C alkyl; R 2  and R 6  are each H, Cl, Br or 1-4C alkyl or alkoxy or optionally substituted phenyl; R 3  and R 5  are each H, Cl, Br or 1-4C alkyl or alkoxy) the two benzoselenazole ring systems being substituted differently. The dyes are prepared by conventional condensation reactions.
Patent GB-704136-A (GB)
Title: Improvements in the production of aliphatic alcohols
IPC: B01J31/20
Filed: 1952-05-01
Abstract: Aliphatic alcohols are produced by heating under elevated pressure in an aqueous, neutral or alkaline medium an olefinic hydrocarbon with a soluble salt of formic acid in the presence of a metal carbonyl, a metal carbonyl hydride or a water-soluble salt of a metal carbonyl halide.  The preferred temperature is 80-200 DEG  C., and pressure 50-350 atmospheres.  Preferably carbon monoxide is pumped into the reaction mixture.  Formic acid salts with alkali or alkaline earth metals, nitrogen bases such as tertiary aliphatic amines, e.g. trimethylamine, diethylethanolamine and N-propylpyrrolidine, and with alkali metal salts of dialkyl diamine carboxylic acids are suitable. The formic acid salts are preferably formed in situ.  Suitable olefines are, for example, ethylene, propylene, n- and iso-butylene or octylene and cyclic olefins such as cyclohexene, octahydronaphthalene and terpene. If diolefines, such as butadiene, isoprene, piperylene, 2.3-dimethyl butadiene and hexadienes are used as starting materials, only one double linkage undergoes the reaction, the other double linkage being hydrogenated.  The preferred carbonyl is iron pentacarbonyl.  Alcohols are formed having one carbon atom more than the olefin.  When using tertiary amines as the base of the formic acid salt there may be an exchange of alkyl groups between the amine and the alcohol formed.  For example, propanol prepared from ethylene in the presence of the formic acid salt may contain ethanol.  The process may be carried out batchwise or continuously.  In the examples, (1) triethylamine is neutralized with formic acid and the resulting salt solution is mixed with iron pentacarbonyl; ethylene and carbon monoxide are pumped in and propanol is produced; (2) ethylene and carbon monoxide are pumped into a mixture of formic acid, N-propyl pyrrolidine, and iron carbonyl; propanol is produced; (3) N-propyl pyrrolidine and pyridine are employed in the process of (1); (4) ethylene is pumped into a mixture of dimethylmonoethanolamine, formic acid and iron carbonyl; (5) ethylene and carbon monoxide are pumped into a mixture of triethylamine, pyridine, formic acid and iron carbonyl; (6) propylene and carbon monoxide are pumped into a mixture of N-butylpyrrolidine, formic acid and iron carbonyl.
Patent GB-1418751-A (GB)
Title: Device for homogenizing a plasticized material
IPC: B29C48/09
Filed: 1973-03-07
Abstract: 1418751 Static homogenizers C H V MORLING 7 March 1973 [13 March 1972 17 Nov 1972] 11027/73 Heading B1C [Also in Division B5] In a static homogenizer, for plasticized material, e.g. for use in extruding thermoplastic resins or in injection moulding machines, said material is forced through staggered sets of axially extending, circumferentially distributed passageways formed by both spaces of at least two adjacent toothed rings. As shown, an extruder head including the homogenizer comprises three portions 2-4 bolted together. Electrical heater windings 8, 9 are provided on the portions 2, 4 and a similar winding may be provided on the portion 3. Portion 2 having an inlet 5 is provided for connection to a material supply means, e.g. a feeding screw. An extrusion die 10 having an outlet orifice 11, e.g. of C-shaped cross section, is mounted on the portion 4 by centering screws 12 and a ring 13. The portion 3 has a ring of passages 25 and is centrally threaded for attachment thereto of a torpedo 6 and an homogenizing part 7. The latter comprises a holder 21 on which is positioned a sleeve 20 having keyed thereon a spacing ring 22, toothed rings 16-19 and a restricting ring 33. The teeth of adjacent toothed rings are axially spaced, and relatively circumferentially displaced by half the circumferential pitch. Tooth circumferential width is slightly greater than tooth space circumferential width. The restricting ring 33 is coned at its toothed ring facing end, e.g at 15 to the radial plane. In operation, plasticised material is divided into strings by the ring 16 teeth, the strings emerging from the ring 16 tooth spaces are subdivided by the ring 17 teeth, and subdivided strings originating from different ring 16 tooth spaces pass together through the ring 17 tooth spaces, the material being thus homogenized as it passes through the various toothed rings. Homogenizing degree may be controlled by varying the number of toothed rings, as by replacing the spacing ring by a toothed ring or vice versa. Material leaving the last tooth ring is radially compressed by the restricting ring 33 to form an annular circumferentially continuous strand. Stationary material zones are prevented before the first toothed wheel 16 by chamfering the inlet ends of the teeth thereof and behind the last toothed wheel 19 by the coning of the restricting ring 33. The latter also provides counter-pressure which may be varied by varying the dimensions of said ring.
Patent GB-527713-A (GB)
Title: Improvements in or relating to the manufacture of sulphuryl chlorofluoride
IPC: C01B17/46
Filed: 1939-04-12
Abstract: 527,713. Sulphuryl chorofluoride. GOWLAND, T. B., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. April 12, 1939, No. 11106. [Class 1 (ii)] Sulphuryl chlorofluoride is prepared by reacting sulphuryl chloride with antimony trifluoride at elevated temperatures in a sealed apparatus and in the presence of bromine or an antimony pentahalide without removal of any of the reaction products until the reaction is substantially complete and thereafter isolating the sulphuryl chlorofluoride e.g. by fractional distillation. The reaction may be carried out in the presence of a small amount of water. In the example sulphuryl chloride, antimony trifluoride and antimony pentachloride are maintained at 250‹C. for 6 hours in a steel bomb and the sulphuryl chlorofluoride obtained by distillation and subsequent fractionation.
Patent GB-1460698-A (GB)
Title: Time division switch
IPC: H04Q11/06
Filed: 1975-03-18
Abstract: 1460698 Automatic exchange systems; multiplexing INTERNATIONAL STANDARD ELECTRIC CORP 18 March 1975 [22 March 1974] 11168/75 Headings H4K and H4M In a TDM system wherein information is switched between a pair of parallel super highways mpe, mps using a store MC for each time slot on the incoming super highway mpe, means M, DM are provided for multiplexing and demultiplexing a plurality of serial bit highways mse1-mse8, mss1-mss8 onto and off the superhighways and for simultaneously performing a serial to parallel or parallel to serial conversion.  Fig. 2 shows the multiplexer/serial to paralle converter M for multiplexing eight, eight bit per channel 32 channel serial highways mse1-mse8 on to a single 256 channel, eight bit per channel parallel superhighway mpe. The arrangement comprises an 8 x 8 switching matrix MCE and a plurality of delay buffers cd each applying a delay of one bit length. By inserting a delay of x-1 bit lengths into the xth incoming highway msex, and a delay of 8-x bit lengths into the wire of the xth bit position of superhighway mpe, the eight input wires msed1-msed8 can be simultaneously switched to corresponding ones of the output wires mped1-mped8 during the length of each bit position, so as to provide the 256 channel parallel superhighway, thetotal delay for each bit through the multiplexer being one time slot of the incoming 32 slot highways. Figs. 3-6 (not shown) illustrate the above operation for the transfer of one time slot of an incoming highway. The demultiplexer DM uses the above arrangement in reverse. It is said that both the multiplexer and demultiplexer can be realised using a plurality of the shift switching matrices disclosed in Specification 1,415,919. The time switch MC for switching between super highways comprises a 256 position store into which the information on the incoming superhighway is written sequentially, the information being read out under the control of a connection store MTS in the appropriate time slots of the outgoing superhighway, to provide a non-blocking switch.
Patent GB-386639-A (GB)
Title: Improved method of preserving rubber
IPC: C08K5/18
Filed: 1931-04-15
Abstract: Anti-agers for rubber are prepared by reacting a ketone with an aryl amine, thus:-- <FORM:0386639/IV/1> where R and R1 are hydrocarbon groups, R2 benzene groups substituted or not.  Suitable amines are aniline, xylidine, toluidine, and amino hydroxy substituted benzenes. Ketones mentioned are acetone, methyl ethyl ketone, diethyl ketone, and cyclohexanone.  Two different amines may be used giving a product of the composition <FORM:0386639/IV/2> where R and R1 are as defined above, and R2 and R3 are benzene groups substituted or not.ALSO:The ageing of rubber is retarded by the addition to the mix of a compound having the formula <FORM:0386639/V/1> where R and R1 are hydrocarbon groups and R2 and R3 are benzene groups which may be substituted or not.  The compounds may be prepared by reacting a ketone with an aryl amine thus:- <FORM:0386639/V/2> Suitable amines are aniline, xylidine, toluidine, and amino hydroxy substituted benzenes.  It is stated that the grouping essential to the anti-oxidizing properties is <FORM:0386639/V/3> (where R1 and R2 are aryls) and therefore almost any ketone is suitable.  Those referred to are acetone methyl ethyl ketone, diethyl ketone and cyclohexanone.  Details of the preparation of the compound from aniline and acetone which boils at 235-250 DEG  at 4 mms. pressure are given in Friedlander, volume 14, page 721.  The materials are not appreciably toxic under conditions of use.
Patent GB-1036279-A (GB)
Title: Process for the production of triglycidyl isocyanurate
Inventor: WENDE ALFRED
IPC: C07D405/14
Filed: 1964-03-17
Abstract: Monomeric triglycidyl isocyanurate is prepared by reacting cyanuric acid with epichlorhydrin in a molar ratio of 1: 60 to 1: 90 in the presence of a tertiary amine or of a tertiary amine group-containing ion-exchanger as catalyst. The triglycidyl isocyanurate is isolated from the reaction mixture by first removing excess epichlorhydrin by distillation at a low temperature and under reduced pressure, and separating the triglycidyl compound from the resulting mixture of triglycidyl compound and dichlorhydrin by precipitation with a selective solvent.  The dichlorhydrin obtained can be converted into epichlorhydrin with the use of calcium hydroxide, and reused.
Patent GB-444609-A (GB)
Title: Improvements in or relating to aircraft
IPC: B64C35/00
Filed: 1935-04-11
Abstract: 444,609. Marine aeroplanes. BLERIOT AERONAUTIQUE, 1, Quai Gallieni, Suresnes, Seine, France. April 11, 1935, No. 11258. Convention date, Oct. 5, 1934. [Classes 4 and 113 (ii)] Aeroplanes of the marine type which are normally able to alight on but not to take off from water are provided with a detachable hydroplaning surface which may be mounted under the fuselage in the case of a forced alighting on water in order to permit of take off. As applied to an aeroplane, Figs. 1 and 2, having two fuselages 1 rendered water-tight at their under sides and fitted with landing wheels 2, the hydroplane surfaces comprise a light metal fairing 3 adapted to fit below the front portion of the fuselage and landing gear. The fairing 3 may have a plane or convex base with a recess 4 to accommodate the foremost wheel and may be formed in one piece or be of folding construction. The fairings may be slidden over the fuselages by chains or the like and secured by bolts or like means which may be such as to enable the pilot to jettison the fairings after take off. The fairings may be carried within the fuselages or folded against the fuselage walls. The invention may be applied to aeroplanes having a single fuselage or landing gear of different type.
Patent GB-1148846-A (GB)
Title: Device for inserting steel inserts in concrete slab
Inventor: MARTENS ERNST
IPC: B28B23/00
Filed: 1967-03-10
Abstract: 1,148,846. Extruding reinforced slabs. SPIROLL CORP. Ltd. 11 March, 1968 [10 March. 1967], No. 11367/67. Heading B5A. A machine for moulding slabs containing longitudinal central bores and spaced transverse reinforcing members comprises a hopper, a compacting chamber behind the hopper, a plurality of augers extending through the compacting chamber for compacting and extruding the slab and forming the longitudinal bores therein, a source of power, a pair of longitudinal side frame members and a device for placing spaced parallel transverse reinforcing members in the slab being formed, comprising a magazine situated in front of the hopper for holding a plurality of reinforcing members and a plunger assembly for picking up one reinforcing member at a time from said magazine, moving the reinforcing member under the hopper and depositing it rearwardly of the hopper in the material forming the slab. As shown for moulding concrete slabs, concrete passes from the hopper 10 through base 11 into the compaction areas 12, which contains a plurality of augers (not shown) spaced across the bed plate 16 and oriented along the direction of motion of the machine. The rotating augers assist compaction of the concrete, create the longitudinal central bores and move the machine from left to right leaving the formed slab on the bed plate 16. The magazine for the reinforcing members comprises vertical members 29 and 45 and a rearwardly sloping base 22. The reinforcing members 19 are removed one at a time from the base of the magazine by a reciprocating member 24 having a slot for engaging the reinforcing members; the reciprocating member 24 moving from the pickup position shown to a position under the compaction chamber where the reinforcing member is deposited into the concrete mix. The reciprocating member 24 may be operated by hydraulic means and may operate automatically in a continuous cycle or intermittently under manual control.
Patent GB-416124-A (GB)
Title: Improvements in or relating to apparatus for use in taking bearings
Filed: 1933-04-18
Abstract: 416,124. Indicating bearings. DUNBAR, R. E. C., Heortnesse, Great Coates, Lincolnshire. April 18, 1933, No. 11379. [Class 97 (ii).] Apparatus for use in taking bearings comprises in combination a single transparent recording sheet or disc mounted in fixed relation to a pivot, and a sighting member so mounted on and movable about the pivot over the recording sheet that the member can be directed on a distant object, the sighting member having a rigid straight edge which is radial with respect to the pivot and lies immediately adjacent to the upper surface of the recording sheet, so that the sighting member can be aligned on a distant object and the recording sheet marked with the guidance of the straight edge and arranged over a chart with the line marked on the sheet passing through the representation of the object on the chart which will be visible through the recording sheet. As shown, the metal frame A receives a transparent graduated recording sheet B having a central aperture through which passes a pin A<1> carried by the frame A. Pivoted on the pin A<1> is a sighting member C having a foresight C<1> and a vertically slotted rear-sight C<2>, and having a straight edge C' collinear with the axis of the pin A1. The serrations C<5> on the other edges preclude the use of the wrong edge. The frame A has two trunnions A<2> engaging brackets D so mounted that the datum line B on the sheet B is parallel to the fore-and-aft line of the ship. The frame A has two A apertures A<3> for facilitating removal of the sheet B, and correct insertion of the sheet B is ensured by engagement of the cut-off corner B<3> with the blocked frame corner A<4>. The sighting member is successively sighted on three fixed objects, the bearing lines being drawn each time by means of the straight edge C<4> on the sheet B, and the sheet B is removed from the frame A, and placed on a chart so that the three lines pass through the representations of the three sighted objects, whereupon the position of the ship is indicated by the central aperture in the sheet B.
Patent GB-775155-A (GB)
Title: Improvements relating to pipe couplings
IPC: F16L23/04
Filed: 1955-04-20
Abstract: 775,155. Pipe couplings. CURTEN, P. April 20, 1955, No. 11413/55. Class 99(1) A pipe coupling comprises semi-circular coupling members 4 having inside surfaces 9, 10, corresponding to the rear surfaces, of flanges 1 on the pipes 2, the rear surface of each flange consisting of two equal semi-annular portions 7, 8, each lying in a plane inclined towards the contacting faces of the flanges, A sealing member 3 may be inserted between the contacting faces of the flange and the coupling members 4 may abut along a diameter 8 where the inclined surfaces 6, 7, meet or on a diameter at right angles to the diameter 8. Locking members 5. with. wedge-shaped recesses engaging corresponding projections on the members 4 secure the coupling members in position.
Patent GB-431888-A (GB)
Title: Improvements in or relating to the measuring of running webs
IPC: B65H23/188
Filed: 1934-04-16
Abstract: 431,888. Feeding and measuring webs. MENSCHNER, J., 36, Doebelner Strasse, Rosswem, Saxony, Germany. April 16, 1934, No. 11433. [Class 100 (i)] [See also Group VIII] In a process for measuring running webs in a practically stressless condition, the web is pre-tensioned and then slackened by employing a feeding speed which exceeds the withdrawing speed, and automatically regulating the ratio of these speeds by means of the stress in the web, the web being measured thus in a practically stress-free condition. The web 1 is pretensioned by the supply device 2, Fig. 1, and is fed by two rollers 3, 4, roller 4 being associated with a measuring-device. Roller 3 is driven at a higher speed than roller 4 and its frictional contact with the web is controlled by a pressure roller 3b which is actuated by a solenoid 9, the contacts 7 of which are arranged under the web. If the web sags the contacts are closed and the roller 3b raised, thus diminishing the feeding-effect of the roller 3, and vice versa. Alternatively, a weight-roller 15, Fig. 2, engages a loop in the web and controls a band-brake 30 on a drum 31 which is coupled positively to the roller 3. The roller 4 is positively driven and drives the roller 3 through a chain drive 19 and friction-clutch. If the size of the loop and tension of the web vary the speed of the roller 3 is altered, and a constant small tension is thus maintained in the web as it passes the measuring-roller 4. In a further modification the roller 3 is directly driven and is coupled to the roller 4 by cone-pulleys, and the rise and fall of the weight roller 15 rotates a hub provided with a cam groove which controls the belt-fork to shift the belt on the pulleys and maintain the tension in the web constant. The tension at which the web is maintained may be adjusted by altering the weight of the roller or by moving a counterweight 46 to the roller, and the roller may be adapted to bear up against the underside of the web. Furthermore the brake or regulating device may control an electric motor driving the roller 3 or roller 4.
Patent GB-858163-A (GB)
Title: Walking aid
IPC: A61H3/00
Filed: 1959-04-03
Abstract: 858,163. Walking aids. RAMSEY, W. J. April 3, 1959, No. 11489/59. Class 132(1). A walking aid comprises side frames 1, 2 each having front and rear legs 3, 31 rigidly connected by a bar 4 which is gripped by the user or supports a hand grip 8 to be so gripped, the side frames being hingedly connected to cross bars 10, 11 forming a parallel linkage such that the user can move one frame whilst leaning on the other and move his legs freely without interference, from the frame. As shown, Fig. 1, legs 3, 31 having friction pads at their lower ends, and uprights 7 carrying the hand grips 8 are adjustably secured to bars 4. Cross bar 10 is curved to avoid the users legs and has a projection 17 to engage bar 11 and limit the movement. In a modification, Fig. 2, cross bars 10<SP>1</SP> is straight and the patient stands in the centre between bars 101 and 11<SP>1</SP>. Arm rests 16 are provided as well as handles 8. Movement of the frame in the second embodiment is limited by the hinges.
Patent GB-1518646-A (GB)
Title: Device for carrying out lateral and longitudinal adjustment for web-fed machines
IPC: B65H23/038
Filed: 1977-03-17
Abstract: 1518646 Orthogonal web registering SIEMENS AG 17 March 1977 [30 March 1976] 11497/77 Heading B8R An orthogonal web registering device comprises a pair of parallel, spaced rollers 1, 2 over which is trained a web (not shown), one end of the rollers being journalled in first and second movable bearings 6, 7 for displacement by an amount a by servo-motors 3, 4 to control lateral register and the other end of the roller 2 being mounted on a third movable bearing 8, the bearings 7, 8 being displaceable by an amount b by servo-motors 4, 5 to control the longitudinal register. The servo-motors are controlled in selective manner by longitudinal and/or lateral registers 12, 13, through associated triggers 16 to 18.
Patent GB-1519431-A (GB)
Title: Process for the preparation of sodium percarbonate as regular rhombohedral crystals
IPC: C01B15/10
Filed: 1977-03-17
Abstract: 1519431 Sodium percarbonate L'AIR LIQUIDE SA POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 17 March 1977 [29 March 1976] 11498/77 Heading C1A Sodium percarbonate, Na 2 CO 3 .¢H 2 O 2  in the form of regular rhombohedral crystals is prepared by the reaction of a 30-98 weight per cent solution of hydrogen peroxide on a fluid suspension of Na 2 CO 3 .10H 2 O in a substantially saturated solution of Na 2 CO 3  in the presence of a crystallization modifier, the decahydrate being present in an amount such that the enthalpy of its dissolution (endothermic) compensates, at least in part, for the enthalpy of crystallization or formation of the percarbonate (exothermic) and any other exothermic reactions occurring in the suspension. The crystallization modifier may be e.g. a copolymer of one or more of maleic anhydride, maleic acid or fumaric acid with one or more of ethylene, propylene, isobutylene, styrene, methyl vinyl ether and furan. The crystallization modifier may be any polymer having a large number of carboxyl groups and may be used in admixture with sodium hexametaphosphate. Other materials which may be added are divalent magnesium salt, which increases the solidity (as defined) of the grains; sodium silicate, which acts as a stabilizer in-storage; organic sequestering agents which minimize the loss of active oxygen; sodium chloride which improves the yield by decreasing the solubility of the percarbonate and sulphate ions which enhances the production of rhombohedral crystals of the percarbonate.