baber/WOPTO huggingface dataset:
Patent GB-346197-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28D1/047
Filed: 1930-05-09
Abstract: 346,197. Tubular surface heat-exchangers. DEHN, F. B., 103, Kingsway, London.-(York Heating & Ventilating Corporation ; 117, South 16th Street, Philadelphia, U.S.A.) May 9, 1930, No. 14340. [Class 64 (iii).] A heat exchanger comprises a casing 11 open at one end and having air passages formed in two sides thereof, in combination with a removable unit consisting of two headers 13, 14 and loop tubes 10 having ends respectively communicating with the headers which latter form a closure over the open end of the casing. The top and bottom plates 21, 22 are joined to the headers after assembly. The endplate of the casing carries a flange 24 to which another casing may be attached, and on its inner side is provided with wings 27 forming a seating for a shield 28, Fig. 7, fitted over the tube loops. The latter are fixed to the shield by stay rods 31 carried by strips 30 which extend respectively across the top and bottom of the tube unit. The centre stay rod 32 projects to form guide members arranged to slide in longitudinal grooves in the top and bottom plates of the casing. The grooves carry baffles to close the spaces between the tube unit and the top and bottom plates.
Patent GB-1378218-A (GB)
Title: Semiconductor components
IPC: H01L21/00
Filed: 1972-03-28
Abstract: 1378218 Contacting semi-conductor devices SIEMENS AG 28 March 1972 [6 May 1971] 14357/72 Heading H1K [Also in Division C7] An electrode on a diffused outer region of a silicon body consists of an aluminium layer in contact with the body and of a silver layer sintered to the outer surface of the aluminium layer. One or all of the electrodes of a multilayer diode or thyristor may be of this form. In one housed structure a contact bolt having a hardsoldered copper-molybdenum-silver sequence is held under pressure against and in operation becomes bonded to a silver-aluminium contact on a silicon body attached to a molybdenum plate which itself forms a sliding contact with a silver foil placed between it and a copper mounting stud. In a similarly housed structure a nickeled copper bolt is pressed against and slides relative to a silver foil which in operation becomes bonded to the silver aluminium contact of a silicon body attached to a molybdenum plate which itself is silver coated on its opposite surface so that in operation it bonds to an adjacent silver foil pressing against but not bonded to a copper stud. Fig. 6 (not shown) depicts an apparatus which may be used to allow, first, vapour deposition of aluminium on to silicon substrates (31) and, then, vapour deposition of silver. The two stages and the subsequent sintering may be carried out without breaking the vacuum. The silver layer may be made 0À05-10 Ám thick and sintering may be effected at a temperature of 200-550 C. (450 C.) by heat applied from filament (34). In an an unillustrated modification the silicon substrates may be inverted within the apparatus after the first silver deposition and before sintering to allow silver deposition on the opposite face to protect a molybdenum electrode.
Patent GB-866589-A (GB)
Title: Synthetic ester lubricants
IPC: C07C69/34
Filed: 1959-04-28
Abstract: A synthetic ester lubricant has the formula:  <FORM:0866589/IV (b)/1> where R5, R7 and R8 are C1-4 acylic alkyl groups, n is 2 to 6, and A is either <FORM:0866589/IV (b)/2> where R1 and R3 are C1-3 acyclic alkyl groups, R2 is a C2-8 acylic alkyl group which may contain a single branch of not more than 2 carbon atoms, and R4 is a C1-10 acyclic alkyl group in which the carbon atom adjacent to the CH2 group is other than a quaternary carbon atom. They are prepared from the appropriate acid chloride and the sodium salt of the appropriate alcohol.  The product may be purified by distillation, passing through alumina and/or passing through a basic ion exchange resin. Examples describe the preparation of di-n-octyl and di-2,2-dimethylamyl a  a ,a 1,a 1-tetraethylazelates. Tetraethylazelaic acid is prepared as follows: triethylcarbinyl 2-ethylbutyrate is obtained from diethylacetyl chloride and sodium triethylmethoxide and reacted in the form of its sodio derivative with 1,5-dibromopentane to give di(triethylcarbinyl) tetraethyl-azelate which is hydrolysed to the free acid; it is converted to the acid chloride for use in esterification.
Patent GB-586716-A (GB)
Title: Improved process for the production of synthetic rubber-like materials
IPC: C08F36/04
Filed: 1943-09-06
Abstract: Emulsions of a diolefine and styrene or a substituted styrene are copolymerised by continuously passing through a plurality of reaction stages during which a polymerization catalyst and an aliphatic mercaptan containing 7-16 carbon atoms in the aliphatic group are added in several increments and controlling the feed at such a rate that the desired degree of polymerization occurs.  In a modification the stream of emulsion may contain the catalyst, the mercaptan being added in increments to the reaction stages. Specified diolefines are butadiene-1,3, isoprene, piperylene and dimethyl butadiene and substituted styrenes listed are a -methyl and p-methyl styrenes.  The preferred mercaptan is dodecyl mercaptan.  Generally the polymerization is carried out at temperatures of 90-140 DEG  F. and the ratio of reactants to water in the emulsion is 1 : 1.5. Preferably the pH of the reaction mixture is adjusted to 8.0-10.3 before the first stage.
Patent GB-795715-A (GB)
Title: Improvements in or relating to well or inspection shafts
IPC: E04H9/12
Filed: 1956-05-11
Abstract: 795,715. Wells. POEHLMANN, H. May 11, 1956 [May 13,1955], No. 14661/56. Class 85 A well, provided with vertically spaced internal steps or ledges 7, is formed by a plurality of walls 2, 3 and at least one continuous layer 1 of sealing or insulating material adapted to afford substantial protection against nuclear radiation disposed between adjacent walls and extending without interruption beneath the bottom 5 of the shaft. A cover having layers of sealing or insulating material may be provided. The well may serve to protect its contents from external radiations, or may serve as a store for radio-active residues.
Patent GB-906646-A (GB)
Title: Improvements relating to cutters for motor driven mowers
Inventor: CAUDWELL PHILIP GORDON
IPC: A01D34/73
Filed: 1959-04-29
Abstract: 906,646. Mowing machines. ALLEN & SONS (OXFORD) Ltd., JOHN. Feb. 2, 1960 [April 29, 1959], No. 14678/59. Class 6(3). A cutter for a mowing machine comprises a plate 12 mounted on a vertical driving spindle 15 and fitted at its periphery with outwardly-directed and downwardly inclined cutter blades 20 arranged to sweep a conical path. The plate may be of conical or domed formation with a flat portion 11 for attachment to a flat support 14 on the spindle 15. The plate may be round, triangular, square or hexagonal in plan and may have two, three, four or more cutting blades 20 bolted at equally spaced intervals around its periphery.
Patent GB-735924-A (GB)
Title: Improvements in or relating to aircraft accelerometers
IPC: G01P15/04
Filed: 1953-05-26
Abstract: 735,924. Accelerometers, indicating-apparatus. AKTIEBOLAGET NORDISKA ARMATURFABRIKERNA. May 26, 1953 [May 27, 1952], No. 14689/53. Classes 106 (3) and 106 (4). An accelerometer for aircraft comprises an instrument rest or base 6, an inertia mass 1, means for resiliently supporting the mass including leaf-springs 14, 15 disposed in planes at right angles to each other, the axis of intersection of said planes being perpendicular to the direction of movement of the mass, one end of each of the springs being connected to said rest and the other to said mass, and indicating means to which movement of the mass is transmitted. The instrument rest 6, supports the dial and is clamped in the casing 7 by a threaded ring 9, the glass 10, a packing ring 11 and a distance ring 8. A transverse support member 13 is secured to the rear side of the disc 6. The inertia mass 1 is connected by arms 3 to a support 5. Two longitudinallyextending springs 14 and a transverselyextending spring 15 are secured at opposite ends to the members 5, 13. A pinion 27 connected to an indicating pointer, Fig. 1 (not shown), meshes with a toothed sector 22 having an arm 21 with a slot 20 which receives a pin 19 on a stirrup member 18 carried by the member 5. The stirrup 18 may be turned about the screw 31 to adjust the transmission ratio between the pin 19 and the toothed sector 22. The movements of the mass 1 are damped by a piston and cylinder arrangement 37, 33 to an extent depending on the adjustment of a valve 36 in an outlet channel 35. A maximum indication pointer may be provided.
Patent GB-202088-A (GB)
Title: Improvements in and relating to conveyors for coal mines
IPC: E21F13/06
Filed: 1922-05-25
Abstract: 202,088. Hare, S. May 25, 1922. Conveying from working face in mines.-A train of bogies e connected by pivoted bars is arranged at each side of the haulage road of a longwall face of coal, and each train in turn is hauled from the filling to the discharging point by an endless cable c including a length of chain to which the end bogies of a train may readily be connected. Each of the end bogies is provided with a twisted bar a, seen in end view in Fig. 5<a>, having a slot j into which a link of the haulage chain can be dropped.
Patent GB-923281-A (GB)
Title: Process for cleaning the interior of confining vessels or similar containers
IPC: B08B3/00
Filed: 1960-04-27
Abstract: 923,281. Cleaning metals. DOW CHEMICAL CO. April 27, 1960 [May 4, 1959], No. 14745/60. Class 82. [Also in Group XXIII] Scale and similar deposits are removed from the interior of vessels such as tanks, boilers, heat exchangers, fractionating columns and pipes, by treatment with a solvent in the form of a foam, the foam being formed outside the vessel and being conveyed in the form of a continuous stream into the vessel. Fig. 1 shows an apparatus for cleaning vertical pipe or tower 34 in which solvent 38 contained in tank 10 is foamed by the introduction of gas, e.g. air, nitrogen or inert gas, through stem 14 and nozzle 16, the resulting foam passing into the bottom of pipe 34 through line 32. Fig. 2 (not shown) relates to a similar apparatus (used for cleaning a horizontal pipe) in which solvent is recycled. Suitable solvents are hydrochloric, sulphuric, phosphoric, nitric, hydrofluoric, sulphonic, citric, acetic, oxalic and formic acids, kerosene, diesel fuel, trichloroethylene, carbon disulphide, carbon tetrachloride, alcohols, aldehydes, ketones, ethers and benzene. The solvent may also contain (a) a surfactant such as 2- heptadecyl imidazoline lactate, a soap, sodium dodecylbenzyl sulphonate, the condensation product of 1 mol. di-sec-butylphenol and 10 mols. ethylene glycol, the condensation product of 1 mol. octadecylamine and 10 mols. ethylene oxide, the condensation product of 1 mol. trimethyl nonyl alcohol and 8-10 mols. ethylene oxide, sodium-N-methyl-N-oleoyl taurate, cocoamine acetate, tetra-alkyl quaternary ammonium chloride, and alkali metal salts of oilsoluble petroleum mahogany sulphonates; (b) in the case of acids, a corrosion inhibitor of the abietyl amine or arsenite-types; and (c) a thickener, such as carboxymethyl cellulose or gum. After cleaning, the vessel may be flushed with a foam obtained from an aqueous surfactant solution, and then passivated with a foam derived from, for example, a surfactant-containing solution of citric acid, sodium hydroxide, sodium carbonate, sodium phosphate, sodium silicate or sodium nitrite. U.S.A. Specification 2,632,726 is referred to.
Patent GB-455900-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L5/30
Filed: 1936-05-25
Abstract: 455,900. Vacuum - cleaner agitators. AIR-WAY ELECTRIC APPLIANCE CORPORATION, 2101, Auburn Avenue, Toledo, Ohio, U.S.A. May 25, 1936, No. 14760. Convention date, May 25, 1935. [Class 8 (i)] A rotary agitator for a suction cleaner comprises a rotatable hub and a beating member hinged thereto about an axis parallel to the axis of rotation of the hub, means being provided for yieldingly resisting deflection of the beating member from its normal radial position. The agitator comprises, Fig. 3, a hub 14 on which are mounted brush members 15 and beaters. Each beater comprises a body of soft indiarubber or like resilient material having a portion 19 received in a metal tube 20 which is cut away for this purpose ; the hub is recessed at 30 to receive the tube 20 the ends of which form trunnions and fit in semi-cylindrical seats in the hub, being retained in position by caps secured to the hub by screws. Wings 28 extend laterally from the body portion 18 of the beater and engage faces 29 of the hub, the rear wing resisting circumferential deflection of the beater. The flexibility of the beater is increased by forming it with a neck 31 and head 32, which is fitted with a channelled bar 33 which makes contact with the carpet. The forward wing may be omitted, or an ear struck out from the rod 20 may be provided to engage the forward hub face to limit movement of the beater in this direction. Alternatively the wings may be stretchable and be secured at their ends to the hub. In a modification, Fig. 8, the beater has a resilient radial portion 18a hinged at 21a to the hub 14a and provided with spring- metal wings 28a engaging the interior of the hub.
Patent GB-1389322-A (GB)
Title: Process for purifying water
IPC: C02F1/52
Filed: 1972-03-29
Abstract: 1389322 Purifying water BELGONUCLEAIRE SA and CENTRE D'ETUDE DE L'ENERGIE NUCLEAIRE 15 March 1973 [29 March 1972] 14767/72 Heading C1C Heavy metal ions (e.g. Hg, Cu, Pb, Zn and Cd), are removed from water by contacting it with a mixed salt of iron sulphide and barium sulphate containing a stoichiometric excess of sulphide over iron ions. The performance of the mixed salt is improved by the addition of a Ca salt or Ca(OH) 2 . The mixed salt is prepared by mixing appropriate solutions of soluble salts (e.g. of BaCl 2 , Na 2 S, FeSO 4  and CaCl 2 ), and drying the precipitate.
Patent GB-291950-A (GB)
Title: Improvements in or connected with control mechanism for aircraft
IPC: B64C13/24
Filed: 1927-06-02
Abstract: 291,950. Hinkler, H. J. L. June 2, 1927. Steering and balancing.-An elevator, rudder &c. is controlled so that for equal angular deflections of the control lever the elevator is given increasing deflections as it moves from normal, by arranging that the distance of the point of connection of the link E to the control lever A from the pivot B is two or three times the length of the lever D connected to the elevator or as shown to a shaft F controlling the elevator.
Patent GB-129169-A (GB)
Title: Improvements in and relating to Conveyors.
Inventor: BENNIS ALFRED WILLIAM
IPC: F41A9/03
Filed: 1918-09-14
Abstract: 129,169. Bennis, A. W. Sept. 14, 1918; Addition to 118,350. Endless - chain conveyers with articulated troughs; carriers and receptacles attaching to chains; guiding.-The carriers described in the parent Specification are replaced by trays 3 which are formed integral with or bolted to the links 1. The trays may be provided with overlapping parts 13, 14 which are preferably cylindrical and concentric with the pivotal axis of the link.
Patent GB-257359-A (GB)
Title: Improvements in or relating to devices for cleaning lamp chimneys and like articles
IPC: A47L25/12
Filed: 1925-06-09
Abstract: 257,359. Terrell, T. June 9, 1925. Holders with clamping devices for mops.-A device for cleaning the interior of lamp chimneys and like articles comprises a number of perforated layers of chamois leather a threaded on'a stem d and clamped between washers b, c by means of a collar f and a nut g engaging the screw-threaded end of the stem d.
Patent GB-477511-A (GB)
Title: Improvements in and relating to door controllers
IPC: B61D19/00
Filed: 1937-05-31
Abstract: 477,511. Door-operating appliances. NUGENT, H. C., and LEGOUIX, S. May 31, 1937, No. 15084. [Class 65 (i)] A controller for ramps of animal-carrying vehicles comprises a ram c urged by a spring k, the ram being pivotally connected to an extension a<2> of the ramp r so that when the ramp is fully lowered the pivot b of the ramp, the connection d of the ram c with the ramp extension and the axis of the ram are in line whereby the ramp rests upon the ground due to its own weight. U.S.A. Specification 1,824,209 is referred to.
Patent GB-230330-A (GB)
Title: Improvement in a rotary well drilling apparatus
IPC: E21B3/04
Filed: 1924-06-23
Abstract: 230,330. Taylor, W. H., and Trout, W. C. June 23, 1924. Screws, screwing-up and unscrewing.-Well drilling apparatus adapted for screwing together drill rods, comprises an inner table 1 supported on a base 9 on roller bearings 7 and having gear teeth engaged by a pinion 4 on a shaft 5, and an outer table 10 rotatably supported on the inner table and having gear teeth engaged by a pinion 14, the elongated hub 15 of the pinion 14 being keyed to a slidable device comprising annular members 32, 33 adjustably clamping a disc 29 between friction washers. When screwing together drill rods, lower rods are supported by gripping mechanism in the inner table 1, and a wrench on the upper rods is engaged by a post in an aperture 11 of the outer table 10, this outer table being then yieldably driven by adjusting a lever 36 to bring clutch teeth 28 on the disc 29 into engagement with corresponding teeth 27 on a loose driven sprocket 23. When drilling, a clutch 21 connects the shaft. 5 to the sprocket 23 to drive the inner table 1.
Patent GB-707582-A (GB)
Title: An improved ignition starting apparatus for internal combustion engines
IPC: F02P15/12
Filed: 1951-06-26
Abstract: 707,582. Electromagnetic switches. MILOSEVIC, U. June 26, 1951 [July 10, 1950], No. 15159/51. Class 38(5) [Also in Group XXVII] An electromagnetically operated vibrator comprises a container 8, in which is located a U- shaped metal frame having inset upper ends 11 between which and insulated therefrom and from each other are a pair of fixed contact arms 14 and a resilient vibrator 17. The contact arms 14 each have two outwardly projecting lugs 19 that are electrically connected by a member 20 bridging the lugs. The vibrator 17 has a central slot with a movable contact arm 22 mounted on each face whilst between the spacer! of arms 22 is held a spring 25 and a resilient backing piece 26; the spring incorporates a contact 27 normally in engagement with an earth contact 28 on the frame and so holds the arms 22 with the attached contacts 29 normally out of engagement with contacts 21 on fixed arms 14. An armature 30 on the lower end of the vibrator 17 is attracted by a pole piece 31 upon energization of a coil 32 seated in and having one end connected to the frame 10, the other end being connected by a lead 33 to a battery. A wire 34 from the member 20 is joined to either the ignition coil or interrupter and an earth lead is clamped between the fixed arms 14. The frame is insulated from the container 8 by resilient pads 36, 37 the latter being positioned upon the lugs 19 and clamped to the container beneath a cap 41 by a spring circlip 42. The ignition coil is rapidly connected to and disconnected from earth through alternate making and breaking of the two pairs of contacts 21, 22 caused by the alternating energizations of coil 32 effected by contacts 27, 28 (see also Group XXVII).
Patent GB-214865-A (GB)
Title: Improved means for use in loading and unloading ships
IPC: B65G17/34
Filed: 1923-06-11
Abstract: 214,865. Giles, H. L. June 11, 1923. Directing and adjustably supporting flat endless-belt conveyers and clevators; suspending from overhead supports; collapsable framework; standards; discharging-devices.-The conveyer is of the type comprising an adjustable framework A, C, E mounted on a truck B on the wharf and suspended over a ship's deck from a derrick by the link H; the sections A, C, E being pivotally connected so that the framework adapts itself to movement of the ship together with an anchoring fitting R with guide sprockets S for fixing in the hold. Each of the sections C, E comprises four frame-bars and carries sprocket-wheels J on stub axles for two endless chains K supporting a belt or other means for holding the cargo. The frame-bars are connected and kept parallel by links D, F and a frame piece G, and the movement of the section C is limited by stops o on a rod O pivoted on the section A and sliding in a guide on the section C. The section A is mounted to turn on a vertical king pin a. The frame R is connected pivotally and with freedom to slide in brackets T in the ship's hold. As shown the chains K support a loose canvas band, for loading goods in boxes. The boxes form pockets in the vertical and horizontal parts of the band, and are ejected by an inclined plate V. The section E of the framework may be made up of a series of short sections, and may be disconnected from the section C for stowage.
Patent GB-883888-A (GB)
Title: Improved method of, and apparatus for, applying an original to a light-sensitive film in registration therewith
IPC: G03B27/02
Filed: 1960-04-29
Abstract: 883,888. Methods and apparatus for photographic registration. BOGER, M. April 29, 1960 [May 4, 1959], No. 15219/60. Class 98(2). A method for applying an original with printing matter in registration with a sensitive film which after exposure may be treated by the diffusion process to transfer such matter to an offset plate for printing comprises placing the folder of Fig. 1, which is a transparent foil of the same length as the film but less'in width folded over to form top wall 1 with marking lines 3, 4 and bottom wall 2 on to copying glass 5 of exposure device 6, sliding the film emulsion side uppermost therein until it abuts the fold edge, sliding the original on top and aligning this by means of the marking lines, pressing original and film with one hand outside the folder while the latter is pulled put laterally with the other hand, whereafter the device is closed for exposure. The apparatus is the folder itself, and it may have a gripping strip projecting beyond the fold edge.
Patent GB-619304-A (GB)
Title: Improvements for jointing pipes
IPC: F16L13/11
Filed: 1947-06-11
Abstract: 619,304. Pipe joints. PAGET, R. C. June 11, 1947, No. 15325. [Class 99 (i)] Means for jointing pipes comprises a pair of interfitting rings 1, 2 which form between them an annular wedge-shaped recess, the larger end of which is open to the pipe so that sealing material 17 moulded therein by hand is compressed therein by fluid pressure in the pipe. The interfitting surfaces of the rings are spherical, the spigot ring I being of channel section and the socket ring 2 of ogee section. The rings may be integral with or secured to the pipes 11 which may be the steel liners of concrete pipes 21. A recess between the ends of linings 18 is filled with mortar 20 which allows access of fluid pressure to the packing 17.
Patent GB-1006666-A (GB)
Title: Improvements in or relating to support members for coaxial connectors for electricalconnectors
IPC: H01R13/646
Filed: 1962-04-19
Abstract: 1,006,666. Two-part couplings. J. S. FORT. April 19, 1963 [April 19, 1962], No. 15330/62. Heading H2E. A support member for an electrical coaxial socket connector as described in Specification 1,006,665 comprises an insulated casing divided longitudinally into a base 10 and a cover 11, each having a half-round groove 28 so that when the two parts are mated a bore is formed through the block, said bore having annular abutments therein to engage annular flanges on the connector to axially locate the latter. The two parts are held together by screws or bolts.