baber/WOPTO huggingface dataset:
Patent GB-701445-A (GB)
Title: Substituted pyrrolidinopropenes and their manufacture
Inventor: ADAMSON DONALD WALLACE
IPC: C07D213/38
Filed: 1950-08-29
Abstract: The invention comprises 1-(41-bromophenyl)-and 1 - (51 - chloro - 21 - thienyl) - 1 - (211 - pyridyl) - 3 - pyrrolidinoprop - 1 - ene (and their salts) in the form of the geometrical isomers which exhibit an ultra-violet absorption spectrum similar to that of pyridylethylene, and the preparation thereof by dehydrating the corresponding carbinol and, if necessary, separating the required isomer from the other.  It is possible to carry out the dehydration under such conditions that the required isomer is produced substantially exclusively, e.g. by drastic methods involving the use of sulphuric acid of high concentration, prolonged heating, high temperatures or a combination of two or all of these.  Under milder conditions, e.g. by heating with 80 per cent sulphuric acid on a steam bath for 10 minutes, a mixture of isomers is obtained and may be separated by fractional crystallization of the base or a salt (e.g. the oxalate) thereof, chromatography on a column of alumina or a base-exchange resin, or removal of the undesired isomer by degradation with boiling acetic anhydride.  The products possess anti-histamine activity.  In examples: (1) (a) 1 - (41 - bromophenyl) - 1 - (211 - pyridyl) - 3 - pyrrolidinopropan - 1 - ol is heated with 85 per cent. sulphuric acid at 180 DEG C. for 10 minutes and the mixture of isomers formed is separated by crystallization from light petroleum or chromatography on an alumina column; (b) the dehydration is effected with 98 per cent. sulphuric acid under otherwise identical conditions, yielding the desired isomer almost exclusively; (2) (a) 1-(51-chloro-21-thienyl) - 1 - (211 - pyridyl) - 3 - pyrrolidinopropan-1-ol is heated with 65 per cent. sulphuric acid at 105 DEG C. for 10 minutes and the mixture of isomers is separated by base-exchange chromatography on a column of sulphonated cross-linked polystyrene; (b) the dehydration is effected with 85 per cent. sulphuric acid, yielding the desired isomer almost exclusively. Specifications 685,696 and 689,234 are referred to.  The Provisional Specification does not make any distinction between the geometrical isomers of the products.  1 - (41 - Bromophenyl) - and 1 - (51 - chloro - 21 - thienyl) - 1 - (211 - pyridyl) - 3 - pyrrolidinopropan-1-ol are prepared by the action of 2-pyridyl lithium on, respectively, p-bromo-b -pyrrolidinopropiophenone and 5-chloro-2-thienyl-b -pyrrolidinoethyl ketone, which are obtainable by the Mannich reaction from p-bromoacetophenone and 2-acetyl-5-chlorothiophen respectively.
Patent GB-765361-A (GB)
Title: A process for the manufacture of flexible, resilient bands, slabs or plates containing natural or synthetic rubber
Filed: 1954-07-22
Abstract: In a process for the manufacture of a flexible resilient band, slab, plate, or other shaped element, alternate layers of a vulcanizable binding agent such as a rubber solution, and vulcanized ground natural or synthetic rubber material containing additives such as softeners, vulcanization accelerators and vegetable and other fibres, are applied to a film or foil of synthetic resin, metal or paper, and the layers are intimately combined by light pressure and subsequently vulcanized, the film or foil being stripped off after vulcanization. When an element other than of band, slab, or plate form, e.g. a hollow element, is manufactured a mould is used in place of the film or foil.
Patent GB-670747-A (GB)
Title: Improvements in bolsters of power presses
IPC: B30B15/00
Filed: 1949-08-17
Abstract: 670,747. Mechanical presses. WILKINS & MITCHELL, Ltd., and WILKINS, E. W. Aug. 15, 1950 [Aug. 17, 1949], No. 21370/49. Class 87(ii) The bolster 10 is slidable in vertical guides afforded by accurately-machined vertical edges 3 of openings 2 in the front and rear of the press, and is vertically adjustable by having its undersurface inclined and engaged on the inclined upper face of a wedge plate 9 which is adjustable laterally in a guide channel 7 formed in the upper face of the bed 5 of the press. The wedge plate is guided also in a groove 11 formed in the underside of the bolster. The wedge plate is moved by means of a screw 17 that is secured to the wedge plate and works in a nut 20 mounted for rotation in a bearing boss 22 in frame 1. The periphery of the nut is formed as a toothed ring 23 which meshes with a pinion 24 moved by handwheel 26. The axial outward thrust of the nut is taken by the bearing boss 22, preferably through an anti-friction axial thrust bearing. The nut may be reained in any set position by engagement therewith of a locking pinion 30, Fig. 2 (not shown). After each adjustment, the bolster is tightened down upon the wedge plate by means of bolts 29 which take into holes in bed 5. The bolster is formed integrally with bosses 12 having dowels 13 which constitute guides for bushes 14 on an upper tool holder 15 carried by the slide 16. The bed 5 is bolted down on to the accuratelymachined edges 4 of the openings 2 by bolts 8.
Patent GB-187372-A (GB)
Title: Improvements in hinge joints for rods, stays, struts and similar members
IPC: A47C17/64
Filed: 1922-05-12
Abstract: 187,372. Hatcher, F. May 12, 1922. Hinges.-The hinge joint of a rod, stay, strut or like member, more especially as employed in the collapsable or folding cot described in Specification 103,921, [Class 52 (ii), Furniture for sitting &c. upon], comprises tubular socket members a, b linked together by an intermediate member d and secured in the extended position by a slidable sleeve f, the pivotal ends of the link being shaped to span the bore of the socket members in the direction of the pivotal axes. In the arrangement shown, the socket members house the ball-shaped ends d' of the link to which they are attached by pivots e. The locking sleeve is secured by a screw g engaging a slot f<1> formed with a lateral recess f<2> at the end or ends to prevent accidental displacement. A flat disc-like link may be used instead of a link having ball-shaped ends. When the jointed parts of a rod are required to fold in one direction only, the adjacent ends of the sockets are made square on one side, the other side being curved. The socket members may be formed of lengths of solid metal bored at one end to form sockets and slotted at the other end to house the intermediate flat connecting link.
Patent GB-668878-A (GB)
Title: Improvements in or relating to computing devices
IPC: G06G1/00
Filed: 1949-08-18
Abstract: 668,878. Calculating-apparatus. PAUL, R. H. Aug. 18, 1949, No. 21505/49. Class 106 (i). A computing device operates on the principle that in a linkage comprising equal links AE, BE, Fig. 4, a link EO of fixed or variable length, and a straight bar AOB along which the link ends A and B are constrained to slide, the product AO. OB is dependent on the length EO. It can be shown that this product equals AE<SP>2</SP>-EO<SP>2</SP>, so that since AE is of fixed length, if length EO is also fixed the product will be constant. As illustrated in Fig. 4, the equal links are pivoted to cursors L, R respectively, slidable along the bar which carries a scale PQ graduated in opposite direction from the centre O. The variable length arm EO is pivoted at O and may be clamped by a screw C at the common pivot E of the links. In multiplication, cursors L and R are moved along the scale so that OA is proportional to one factor and OB to the other. Arm OE is then clamped and one of the cursors is moved to 1 on the corresponding portion of the scale, the other cursor then giving the product since AO. OB = constant. Division is performed by a similar method. As shown in Fig. 5, each cursor 2 includes a vernier scale for co-operation with the main metal scale 1 and may be clamped by a screw (not shown). A spring 12 is used to take up back-lash and friction-reducing rollers and a micrometer eyepiece (not shown) may be fitted. The links 6, 19 are pivoted on bearing pins carried by the cursors and on pin 20 through which passes the variable length arm 7 clamped by screw 11. The arm comprises two portions connected by a nut 8 acted on by springs 9 and 10 and having screw-threads of different direction or pitch for fine adjustments.
Patent GB-215111-A (GB)
Abstract: 215,111. Alley, S. E. Feb. 6, 1923. Non-reactive steering - mechanism. - In screw-and-nut mechanism of the kind having the steering - shaft 11 movable about its upper end, the steering-arm spindle 15, the link 14 and the screwed lower end 12 of the steering- shaft are enclosed in an oil well 17, oil being introduced through the upper end of the cap 25 and passing over the bearings 27, 28 to the oil well. Two enlargements 29, 30 are formed integral with the steering shaft and have convex spherical annular surfaces which engage the bearing-surfaces 27, 28. Specification 173,440 is referred to.
Patent GB-991598-A (GB)
Title: Improvements in or relating to machine guards
IPC: F16P3/04
Filed: 1960-06-21
Abstract: 991,598. Machinery guards. W. J. BROWN. Sept. 14, 1961 [June 21, 1960], No. 21768/60. Heading F2J. A guard for a machine tool is arranged, in its fully lowered position, to operate a number of switches 107 simultaneously, the switches being arranged along the width of the guard and connected in parallel to an overriding relay 103. If the guard is correctly lowered, relay 103 is de-energized, and after a short delay relay 114 operates and in turn energizes relay 115. Operation of pedal 102 to close switch 116 then energizes a clutch coil 117 to operate the machine. If the guard is obstructed one or more of switches 107 will be changed over before the rest and relay 114 operates before 103 releases so that the circuit of clutch coil 117 is opened and operation of the machine is prevented. The work table is mounted on a parallel linkage operable by a screw and nut mechanism to adjust the height of the table.
Patent GB-187386-A (GB)
Title: Improvements in agricultural implements for use in drilling corn and like operations
IPC: A01C5/06
Filed: 1921-08-17
Abstract: 187,386. Hepburn, J., and Summers, L. F., (trading as Bradfield Tractor Co.). Aug. 17, 1921. Seed distributors.-A flat-bottomed weighted shoe a for use with a seed drill for surface sowing is trailed over the ground and has a prowlike forward end c and a seed distributor f at the rear end into which the seed is fed from a hopper on the seed drill by a telescopic tube which allows of free vertical mvement of the shoe. The distributor reaches to the level of the ground and has a slot g at the rear. The seeds are covered by a small share r. A series of shoes may be coupled to the seed drill, each share r being a little to the rear and to one side of its respective shoe. The shoe may be raised or lowered by a. chain attached to lugs k and a bar is secured to the prow c in order to remove large pieces of earth from the path of the shoe.
Patent GB-443875-A (GB)
Title: Method of and apparatus for producing perforations of small diameter in bands of cellulose foil or the like
IPC: B26F1/20
Filed: 1935-08-01
Abstract: 443,875. Perforating - machines. SEELIG & HILLE, R., 27, Zwickauer Strasse, Dresden, Germany. Aug. 1, 1935, Nos. 21862 and 21863. Convention dates, Sept. 17, 1934 and Feb. 7, 1935. [Class 31 (ii)] A band of cellulose foil is passed between staggered perforating wheels 9 and a cooperating backing roller 1. Each wheel 9 carries radial tools 20 and is mounted on a shaft 10 bearing in a sleeve 11 and geared to the roller 1. The sleeve 11 is pivoted at 15 to the machine frame and is spring-urged to hold the tools 20 against the roller 1, but may be rocked by a hand-operated cam 28 to disengage the tools. The tools may be hollow ground transversely of the cutting direction, instead of being plane ground.
Patent GB-243838-A (GB)
Title: Improvements in or relating to the operation of otterboards for trawl fishing nets
IPC: A01K73/02
Filed: 1924-09-18
Abstract: 243,838. Rowton, H. S. Sept. 18, 1924. Trawling-gear. - The gear comprises a towing cable A continuous from each side of the net to the trawler, and an otterboard D connected on the outside of each cable and remote from the net. The otter-board D is provided with a bracket H connected by a pennant E to a point on the cable in advance of the board and with a fitting K connected by a pennant F with a ring L slidable on the cable A to engage a stop thereon. In the gear shown, the cable consists of a number of sections joined by links B<1> to any one of which the pennant E may be connected. A large ring B<2> may serve as the stop for the slider L. The towing tension is transmitted by the intermediate section of cable A' and not by the board. When hauling in the net the cable and its connections in rear of the board may pass through the slider L. The pennant E may consist of one or more sections of steel wire rope and the pennant F of one or more sections of steel wire rope or chain.
Patent GB-752978-A (GB)
Title: Improvements in the granulation of fine grained materials
IPC: B01J2/14
Filed: 1954-07-28
Abstract: 752,978. Agglomerating ores. DUISBURGER KUPFERHUTTE. July 28, 1954 [July 29, 1953; May 29, 1954], No. 22098/54. Class 82(1). [Also in Group V] Fine-grained ores are agglomerated by contacting a stream of droplets of a liquid forming agent with a stream of the fine-grained material at the point where the fine-grained material enters a rotating granulating apparatus, the relative proportions of the material and liquid being kept constant. As shown in Fig. 1, fine-grained material from container 1 is fed by a screw conveyer 7 to a rotating granulating table 11. At the point at which the material hits the table it is joined by a stream of droplets 8 of liquid, forced by a positive displacement pump 3 through spray nozzle 9. The driving mechanisms of the pump 3 and conveyer 7 are connected by a coupling 6 which ensures a constant ratio between the rates of delivery of material and liquid. By employing a variable coupling this ratio can be adjusted as desired. The forming agent may be an unsaturated solution or a suspension, for example of ores, slaked lime or coke, or a hot solution containing an amount of solule greater than would saturate the solvent at room temperature or a melt of a substance which liquifies at above room temperature.
Patent GB-1450883-A (GB)
Title: Arrangement for permitting inflammable fuel and hot fluid to be stored in close proximity
IPC: B60K15/03
Filed: 1974-05-17
Abstract: 1450883 Vehicle cooling arrangements INTERNATIONAL HARVESTER CO 17 May 1974 [17 May 1973] 22141/74 Heading B7H The compartments 26, 28 of a tank structure 24 for a vehicle respectively store fuel and a liquid which heats, for example hydraulic fluid, during engine use, the compartments being separated by an air gap 44 through which air is drawn by the vehicle fan 20 thus reducing heat transference between the compartments. Each compartment comprises a front, rear and side wall (Fig. 4, not shown) connected together by a respective wrap round member 35 or 37 which defines the top, bottom and outside wall of the compartment, the members 35, 37 having extensions 38, 39 and 41 welded together at 42, 43. Legs 46, 48 are provided for mounting the structure on the vehicle frame.
Patent GB-617204-A (GB)
Title: Improvements in or relating to toothed gearing
IPC: F16H55/10
Filed: 1946-07-25
Abstract: 617,204. Toothed gearing. DAVIES, W. W. July 25, 1946, No. 22161. [Class 80 (i)] In an arrangement of toothed gearing the individual teeth are hydraulically cushioned. As shown, teeth 15 on one wheel 11 engage teeth 16 on wheels 13 and 14, the teeth 15 being formed with protusions 15a whilst the teeth 16 are formed with corresponding recesses 16a. The teeth are formed with pistons 15b and 16b supported in cylinders 17 filled with hydraulic fluid 18. The inner ends of the cylinders 17 are closed by pistons 19a coupled to rods 19 connected to the wheels at 20. Filling and anti-vacuum holes are provided in the cylinder walls. Adjustment of the mesh of the wheel teeth is effected through screwed rods 23 and gearing 22 operated by a hand wheel 21.
Patent GB-953487-A (GB)
Title: Magnetohydrodynamic generator
IPC: H02K44/26
Filed: 1962-06-07
Abstract: 953,487. Generators operating by electromagnetic interaction with fluids. SIEMENSSCHUCKERTWERKE A.G. June 7, 1962 [June 7, 1961], No. 22169/62. Heading H2A. In a magnetohydrodynamio generator duots 8-12, comprising alternate electrode 23, 24, and insulating sections 30 (Fig. 5, not shown), angularly spaced around the periphery of a rotor 1, which comprises six magnet poles 1-6; so that when the rotor turns a unidirectional magnetic flux passes across an electrode section and interacts with the ionized gas therein to produce a voltage between the electrodes. Thus in one duct six maxima of voltage are produced (three positive, three negative), at the various sections, each differing in time phase by 60 degrees from the next, and therefore by suitable connections between the ducts a polyphase A.C. output can be obtained. In a modification, the rotor may be cylindrical and wound to give the required number of poles and to ensure that the poles and stator duets are twisted relative to each other either the rotor poles, stator ducts or bolt may be twisted relative to the rotor axis, Figs. 2 and 4 (not shown). Both a compensating and a short circuited damper winding may be used on the rotor which may be driven by an external motor or can, by adjustment of the angle between poles and ducts, be free running after starting. Permanent magnets may be used initially on the rotor, if the field current is derived from the generator output and the length of the ducts will vary in accordance with the generator frequency. German Specification 622,131 is referred to.
Patent GB-1093614-A (GB)
Title: Improvements in or relating to vulcanisation
Inventor: SEAR DEREK WILLIAM
IPC: C08J3/24
Filed: 1964-05-29
Abstract: A film of a chlorosulphonated polyethylene composition is vulcanized by applying to the surface of the film a solution containing as the principal vulcanizing ingredient an aliphatic polyamine or polyamide having at least one free amino group in the chain.  The polyamine preferably has the formula H2N-(CH2CH2NH)nH where n is preferably 1 to 4, and the polyamide preferably has the formula NH2(R1-NH-R11-NHCORCONH)nH where n is any integer and R, R1 and R11 are alkylene groups. Preferably the polyamine or polyamide is applied in solution in a solvent which is also a solvent for the chlorosulphonated polyethylene.  In the examples: (I) and (II) a composition comprising chlorosulphonated polyethylene, magnesia, an ultra-violet light inhibitor and mineral oil in a solvent is spread, three coats, on a nylon fabric.  The coated fabric is dusted with a finely divided starch derived from cereals, treated with a solution of a polyamide in toluene and then heated to 212 DEG  F.  Examples (III) to (V) are similar except that ethylene diamine, diethylene triamine and tetraethylenepentamine solutions are employed instead of the polyamide solution.ALSO:A film of a chlorosulphonated polyethylene composition is applied to a textile material and the thin film is then vulcanized by treatment with a solution containing as the principal vulcanizing ingredient an aliphatic polyamine or polyamide having at least one free amine group in the chain.  The preferred polyamine has the formula: H2N-(CH2CH2NH)nH where "n" is preferably 1 to 4, and the preferred polyamide has the formula: NH2(R1-NH-R\yF-NHCORCONH)nH where "n" is an integer and R, R1 and R11 are alkylene groups.  The chlorosulphonated polyethylene composition is preferably applied in a solvent such as toluene in the presence of a small quantity of desiccant to absorb traces of water from the solvent, to the fabric.  In the examples a composition comprising chlorosulphonated polyethylene, magnesia, an ultraviolet light inhibitor and mineral oil is dissolved in a toluene/butyl alcohol solvent and the solution is applied, three coats, to a woven nylon fabric to give a coating thickness of the order of 0.001 inches. The coated material is dusted with a finely divided starch derived from cereals and is then treated with a solution in toluene of a polyamide, or ethylene diamine or diethylene triamine or tetraethylene pentamine.  After treatment with the polyamide or polyamine, the coated fabric is passed through a chamber at 212 DEG F. to drive off the toluene.
Patent GB-750338-A (GB)
Title: Improvements in or relating to the briquetting of coal
Inventor: GREGORY DOUGLAS HAIG
IPC: C10L5/04
Filed: 1953-08-12
Abstract: 750,338. Fuel. COAL INDUSTRY (PATENTS), Ltd. July 22, 1954 [Aug. 12, 1953], No. 22241/53. Class 50. Coal to be briquetted.is mixed with a small amount of a fluxing agent, e.g. coal tar, byeproducts of the distillation of petroleum or wood, and after heating to fusing temperature briquetting at a temperature from 250‹C. to a temperature below the particular decomposition temperature. In an example a low rank coal decomposing at 420‹C. and crushed wet to below 1/16 grain size is mixed with coal tar pitch equal to 5 per cent on a dry basis of the total mixture, which is heated in moulds to 380‹C. and then pressed at 2 tons/sq. in. per one second. In another a coal of high natural fluidity is pre-oxidised at 300‹-350‹C., mixed with pitch without washing and briquetted at 300‹C.
Patent GB-387390-A (GB)
Title: Improvements in and relating to aircraft instruments
IPC: B64D45/00
Filed: 1931-08-06
Abstract: 387,390. Aircraft instrument arrangement. HUMPHERY, G. E. WOODS-, 5, Shelley Court, Tite Street, Chelsea, HALL, H. L., 26, Abbotswood Road, Streatham, and IMPERIAL AIRWAYS, Ltd., 13, Charles Street, St. James's Square, all in London. Aug. 6, 1931, No. 22275. Drawings to Specification. [Class 4.] Instruments for indicating temperature and pressure of oil and engine speed &c. are placed as close to the engines as possible and their readings are transmitted to repeater instruments at points most convenient to the crew. The master instruments are so placed that their indications can also be read at a distance when necessary to check the accuracy of the repeater instruments. Each master instrument may work more than one repeater instrument. Each instrument may be constructed with a dial having insulated contacts co-operating with a brush on the pointer or a separate arm to energize lamp circuits on the repeater. Alternatively a rheostat on the master instrument may control galvanometers on the repeaters. Clockdriven sensitive strip may be used for recordng the readings.