baber/WOPTO huggingface dataset:
Patent GB-628722-A (GB)
Title: Improvements relating to alternating current rectifiers of the dry surface contact type
IPC: H01L25/07
Filed: 1947-10-10
Abstract: 628,722. Asymmetrically-conducting resistances. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. Oct. 10, 1947, No. 27237. Convention date, May 7. [Class 37] In an alternating current rectifier of the type comprising a disc or plate 1 provided on each face with a layer of copper oxide or selenium and outer conductive coatings, the said coatings are electrically connected together by a spring contact member 7 extending in an insulated manner through an aperture in the plate or disc so as to be clamped between contact washers 9 disposed one on each side of the rectifier. The spring contact member 7 is housed within an insulating tube 8 disposed between recesses formed in each contact washer. A plurality of the rectifiers may be mounted on a central insulated rod 5, in the manner illustrated, the rectifier being connected in series with the aid of intervening sheet metal connectors 11 and insulating spacers 13.
Patent GB-258112-A (GB)
Title: Machine for rolling and piercing golf and other greens
IPC: A01B45/02
Filed: 1925-10-30
Abstract: 258,112. Gibson, D. Oct. 30, 1925. Rotary-tool implements; rollers, land. - A machine for rolling and piercing golf greens &c. comprises a slotted cylindrical roller A provided with removable pivoted spikes D projecting through the slots G and free to oscillate within their limits, so as to make vertical holes in the greens. The spikes D are pivoted on pins C removably secured in lugs H by means of spring catches in the pins, the catches consisting of balls pressed outwards bv springs. The roller spindle B projects at the ends to receive a pulling handle.
Patent GB-286284-A (GB)
Title: Improvements in catalysts of high mechanical strength
IPC: B01J37/08
Filed: 1927-10-14
Abstract: 286,284. I. G. Farbenindustrie Akt.- Ges. March 3, 1927, [Convention date]. Methanol ; monohydric alcohols.-For the synthesis of methanol, monohydric alcohols and other oxygen compounds catalysts of high mechanical stability, particularly of metal oxide type, are obtained by the addition of water soluble magnesium salts e.g. the sulphate, chloride or nitrate, to the other components. The magnesium salt is added to one component of the catalyst, the acid of the magnesium salt being then expelled, and a solution of the other components added. Examples :-(1) zinc oxide is made into a paste with a solution of one-tenth of its weight of magnesium chloride and the mixture after heating in a current of air is impregnated with chromic acid: when a mixture of carbon monoxide and hydrogen (1/3) is passed over this catalyst at 400‹ C. and 200 atmospheres, methanol is obtained. (2) The zinc oxide and magnesium chloride mass in the above example is treated with an alkali metal bichromate solution. A mixture of carbon monoxide and hydrogen (1/3) when passed over this mass at 450‹ C. and 200 atmospheres pressure gives a product containing in addition to methanol about 30 per cent of higher alcohols and other compounds containing oxygen. The Specification as open to inspection under Sect. 91 (3) (a) describes the general use of water soluble magnesium salts without restriction to the special method of addition described above. This subject-matter does not appear in the Specification as accepted.
Patent GB-479373-A (GB)
Title: Method and apparatus for dehumidifying air and other gases
IPC: F24F3/14
Filed: 1936-10-09
Abstract: 479,373. Drying gases. CLARK, G. M. (Weiss & Down, Inc.) Oct. 9, 1936, No. 27444. [Class 34 (i)] In a method of de-humidifying air or other gases, gas and hygroscopic liquid are passed in concurrent direction in contact with each other in thin streams and heat is removed from the liquid by heat exchange with a heat-absorbing surface while the liquid and gas are in contact. In the construction shown, a casing 1 is provided with compartments 5, 6, 7, containing solid calcium chloride or other deliquescent material, a compartment 8 containing hygroscopic solution, and a compartment 9 in which the solution is brought into contact with air entering at 21. The compartments 5, 6, 7, are provided with perforated baskets for the solid material, and the baskets are separated from one another by radiators 14, 15. Cooling liquid circulates through the radiators 14, 15 and through a radiator 22 in the compartment 9. The hygroscopic solution is drawn from the compartment 8 by a pump 30 and delivered through a spray pipe 23 on to splash plates 24 situated at the top of the radiator 22. The liquid is thus distributed over the coils of the radiator and readily contacts with the air, which afterwards passes through the solid materials and is further cooled by the radiators 14, 15. The space below the compartment 9 is filled with Raschig rings to prevent splashing of the liquid. The air is circulated by a blower 20. Instead of passing through the solid materials it may be byepassed through a duct 28b by means of a hinged damper 44 and sliding dampers 45, 45a. When the level of liquid rises in the compartment 8 a float 36 acts to close contacts 38 whereby an electric circuit is completed to open a solenoid-operated valve 35. Part of the liquid circulated by the pump 30 is then discharged through this valve to waste or to a re-concentrator 46. In the latter case the liquid is pumped through heat-exchangers 48, 49a to nozzles 50 to be sprayed over the fins of a heated radiator 51. The heated solution then flows over Raschig rings 52 and gives up moisture to atmospheric air supplied through conduit 53. The solution flows back in re-concentrated condition through pipe 57 to the compartment 8. The heating of the radiator 51 and the operation of the blower supplying air through opening 53 may be controlled automatically by means of a humidistat. Instead of downward concurrent flow of the gas and hygroscopic liquid through the radiator 22, the radiator may be arranged so that the gas flows horizontally and carries the sprayed liquid along with it. The calcium chloride lumps used in the method described may be provided with activated carbon to deodorize the air being dried.
Patent GB-276611-A (GB)
Title: Process for the preliminary treatment of raw sugar, afterproduct sugar or the like before refining
IPC: C13B30/06
Filed: 1926-11-02
Abstract: 276,611. Raffinerie Tirlemontoise Soc. Anon. Aug. 26, 1926, [Convention date]. Refining sugar.-Raw sugar, after-product sugar, and the like are, prior to further treatment in the refinery, placed in store rooms the temperature and humidity of which are controlled by supervision or automatically so that the syrup surrounding the crystals attains and maintains a low limit of purity below which it is not economical to treat it for reduction of its sugar content, e.g. 60 per cent of sugar in the total dry content of the syrup. The crystals may subsequently be treated in centrifuges of high centrifugal force, e.g. 1600-6000 times the weight of the mass treated, so as to remove entirely or almost entirely the syrup which is of so low a purity that it can be put,aside as molasses without further treatment. If the crystals are subsequently subjected to further refinement, a syrup of higher purity may be used in the. treatment and less water employed in the subsequent washing.
Patent GB-318925-A (GB)
Title: Improvements in aerofoils for propelling or sustaining aircraft
IPC: B64C23/00
Filed: 1929-09-11
Abstract: 318,925. Scott, R. S. Sept. 12, 1928, [Convention date]. Planes, construction of. - Aircraft supporting planes and screw propeller blades have their upper or suction surfaces formed with streamlined convex ridges, of substantial width and depth, arranged in the direction of motion. Fig. 4 shows a plan of a wing having ridges 32 on its upper surface which gradually diminish in depth towards the wing tip 41 which is smooth and rounded at the extreme edge. The spacing of the ridges may be from three to nine per cent of the wing span and the depth of the channels between the ridges is not less than 15 per cent of the total depth of the wing at any point. The front edge of the wing may be straight or indented as shown in Fig. 4<a>. Ribs of appropriate depths are threaded on to wing spars and are placed beneath each ridge and trough.
Patent GB-359651-A (GB)
Title: Improvements in or relating to valve stems for tyre valves and the like
IPC: B60C29/00
Filed: 1930-09-16
Abstract: 359,651. Leak-tight seals. SCHRADER'S SON, Inc., A., 470, Vanderbilt Avenue, Brooklyn, New York, U.S.A.- (Assignees of Clo, J. H. ; 21, Lakeside Drive, Baldwin, New York, U.S.A.) Sept. 16, 1930, No. 27661. Convention date, July 3. (Class 99 (i).] A two-part valve stem for a tyre valve comprising a short tubular base adapted to be attached to the inner tube and adapted to receive alternative tubular upper parts adapted to house the valve insides, is provided with means to give a multiple leak-tight seal between the two members. In the form shown in the Figure the base part B is screwed threaded internally and is bored out to provide a square shoulder at b<9> and an inclined shoulder at b<7>. The bore above the shoulder b<7> is made square in cross section and is axially slotted at the corners, the slots extending into the inclined shoulder. A tubular member b<11> having a tapered surface b<12> and constructed of harder metal than the upper part of the stem is driven or soldered in the bore b<8>. In a modification the tapered member is formed integrally with the base. The upper part C has a flange c<8> engaged by flanges d, d<1> on the coupling- nut D, a slightly tapered squared part c, and a recessed extension c<1>. A rubber packing is cured in the groove c<2> and is adapted to seat on the inclined shoulder and also enter the bore b<8>. The wall at the bottom of the groove is made relatively thin so that when the end of the extension c<1> engages the plug b<11> it is deformed to make a fluidtight seal between the extension c<1> and the bore b<8> as well as between the extension and the plug. In a modification the external thread in the base part is tapered and the nut correspondingly shaped to facilitate the forcing of the parts of the square bore against the square shank. The end of the part c<1> may also be formed with a series of contacting edges where it engages the plug.
Patent GB-1411308-A (GB)
Title: Capsule containing tracer gases for locating failures in nuclear fuel pin cans
IPC: G21C3/02
Filed: 1973-06-11
Abstract: 1411308 Nuclear fuel elements COMMISSARIAT A L'ENERGIE ATOMIQUE 11 June 1973 [28 June 1972] 27710/73 Heading G6C A capsule 1 for insertion within a nuclear fuel pin contains tracer gas and is made of non- fusible material 3 and provided with a fusible seal 2 which melts at a temperature below the reactor operating temperature, allowing the tracer gas to pass out of the capsule into the interior of the fuel pin. A non-fusible porous plug 8 may be provided to retain the fused material within the capsule. The capsule and porous plug may be made of stainless steel and the fusible seal of indium, tin, or lead. Each. fuel pin may be labelled using a specific tracer gas, e.g. mixtures in different proportions of stable isotopes of xenon and/or krypton, so that a can failure may be identified by determining the composition of the released gas.
Patent GB-1255386-A (GB)
Title: Improved vinyl chloride polymers
IPC: C08F220/06
Filed: 1969-06-02
Abstract: 1,255,386. Vinyl chloride copolymers. SOC. NATIONALE DES PETROLES D'AQUITAINE. 2 June, 1969 [4 June, 1968; 16 Jan., 1969], No. 27734/69. Heading C3P. Ter- or tetra-polymers comprise vinyl chloride, an olefinically unsaturated epoxy compound, an unsaturated soap of a metal of Group II or IVA and optionally an olefin or a vinyl or allyl ester of a C 6 -C 18  saturated carboxylic acid or mixture of such acids. Dispersion, solution or bulk techniques are used. In the examples are used vinyl 10,11-epoxy undecanoate, glycidyl undecylenate, allyl glycidyl ether, 4-vinyl epoxy cyclohexane, 1,2-epoxy-5,9-cyclododecadiene; lead or cadmium undecylenate ; and in some examples a fourth monomer, tetrapropy. lene, vinyl laurate, or vinyl esters of C 9 -C 11  branched acids.
Patent GB-767546-A (GB)
Title: Improvements in or relating to rotary electric switches
Inventor: RICHARDS FREDERICK CHARLES
IPC: H01H3/02
Filed: 1954-09-27
Abstract: 767,546. Snap-action switches. SANTON, Ltd. Sept. 21, 1955 [Sept. 27, 1954], No. 27779/54. Class 38(5) A rotary switch in which a spindle 13' drives a contact-carrying spindle 15 through a spring 8 in which energy is stored and subsequently released by a locking spring 10 fixed to a plate 14 mounted on the spindle 15 and having upturned ends 11 co-operating with fixed stops 12, these ends being depressed out of locking engagement with the stops by arms 9 on a plate 6 fixed to the spindle 13, has an emergency drive for the spindle 15 in the event of fracture of the spring 8 comprising the engagement of a spring end 11 by the side of an arm 9, Fig. 3. The depth of the arms 9 is greater than that of the stops 12 whereby an arm 9 may engage a spring end 11 to drive the spindle 15 through all its positions by continued rotation of the spindle 13.
Patent GB-1184746-A (GB)
Title: Process for the Production of Methacrylamide
IPC: C07C233/09
Filed: 1967-06-16
Abstract: 1,184,746. Methacrylamide. MITSUBISHI RAYON CO. Ltd. 16 June, 1967 [29 June,, 1966], No. 27824/67. Heading C2C. Methacrylamide is prepared by mixing one mole of acetone cyanhydrin with at least 1À5 moles of concentrated sulphuric acid at 80- 100 C., heating the mixture to at least 100 C. to dehydrate at least part of the acetone cyanhydrin, cooling the mixture to 80-100 C., adding a further portion of acetone cyanhydrin, and heating the mixture to at least 100 C. to dehydrate a further part of acetone cyanhydrin. The sulphuric acid concentration is preferably 97À5% and the dehydration temperatures are preferably 100-140 C. in the first stage and 130-160 C. in successive stages. The reaction may be performed in a continuous manner.
Patent GB-654748-A (GB)
Title: Improvements in or relating to apparatus for wrapping ice-cream blocks and other articles of rectangular form
IPC: B65B11/02
Filed: 1948-10-27
Abstract: 654,748. Wrapping-machines. LEIGH, M. Oct. 27, 1948, No. 27944. [Class 94(i)] A machine for wrapping square--angled articles comprises a platform 3, Fig. 1, carried by rods 4 slidable in guides 5 and movable upwardly and downwardly by a cam formed in one face of a disc 12. The platform is first raised to an intermediate position below a supporting plate 24 on to which an article B has been fed from an inclined guideway 2 and remains stationary while a wrapper S is pulled across it by reciprocating grippers 7, 8. The platform then rises to a position just below an aperture 23 in the plate, the article is pushed on to the wrapper by a plunger 25 and the wrapper is cut off by knives 9, 10. A clamping plate 36, actuated through linkage by a cam formed in the other face of the disc 12, then descends to hold the article on the platform, and the platform and plate descend together to move the article and wrapper between side plates 46, 46a whereby the wrapper is folded into a U about the article. The plate 36 then rises and a pair of side folders 48, 48a are operated in succession as indicated in Fig. 10 to fold down the extending portions W, Wl of the wrapper on to the top of the article. The plate 36 then descends to re-engage the partially wrapped article, and end-folding members 71, 71a, Fig. 11, mounted on transverse shafts, are rocked inwardly to fold down the extending end portions W3, W5, of the wrapper tube, thus forming triangular flaps W1, W10, Figs. 12 and 13, which are folded against the ends of the article by two pairs of folding plates 80a, 80b and 80c, 80d pivoted on vertical axes. The plate 36 and platform 3 then descend together to carry the partially wrapped article past fixed bars or rollers 95, 98, Fig. 14, which fold up the remaining extending parts W11, W12 of the wrapper.
Patent GB-740293-A (GB)
Title: Improvements in textile fabrics
IPC: D03D11/00
Filed: 1953-10-12
Abstract: 740,293. Woven fabrics. FRIEDER, L. P. Oct. 12, 1953 [Nov. 25, 1952; June 12, 1953], No. 27963/53. Drawings to Specification. Class 142 (4). Fabric subject to abrasion has at least the surface threads of continuous filament nylon twisted sufficiently to prevent the filaments from slipping over one another. In a twoply parachute webbing, all the threads are 210 denier singles twisted 18-20 t.p.i., plied together with not more than 4 t.p.i.; the binder warp threads are omitted from the selvedges to reduce chafing of the wearer.
Patent GB-503924-A (GB)
Title: Improvements relating to panels for baths
IPC: A47K3/16
Filed: 1937-10-14
Abstract: 503,924. Panels for baths. DONALD, P. G., and ROWNSON, DREW, & CLYDESDALE, Ltd. Oct. 14, 1937, No. 27966. [Classes 20 (iv) and 87 (i)] A bath panel is provided on its respective upper and lower longitudinal edges with inturned and out-turned flanges 2, 3 inclined to the plane of the panel. The junctions of the flanges with the panel may be curved. The ends of the flanges are merged into marginal portions 6 formed on the transverse ends of the panel, such portions 6 being preferably located in a plane disposed approximately centrally between the plane of the panel and the rear edge of the upper flange 2. The junction of the upper flange 2 with the panel is curved to accord with the curve of the underside of the roll of the bath. A right-angled corner strip may be positioned at the junction between the panels at the side and end of the bath.
Patent GB-603545-A (GB)
Title: A method for the electrolytic surface treatment of brass
IPC: C25F3/22
Filed: 1945-10-24
Abstract: 603,545. Electrolytic surface treatment of brass. BERGER, P. Oct. 24, 1945, No. 28015. [Class 41] A brass article to be given a highly-polished passive surface is made the anode in an electrolytic bath consisting of an aqueous solution of phosphoric acid chromium trioxide and a small quantity of a soluble compound, such as lead acetate, containing a cation, which forms an insoluble chromate, together with some or all of the following radicals : bichromate, nitrate, sulphamate, sulphate, fluoride, fluosilicate, borate, fluoborate ; and together with carboxylic acids or their derivatives, and any of the salts of benzene-sulphonic acid. A lead cathode and a lead-lined tank are used. In a modification to produce a polished brass surface which is only slightly passive, the lead acetate is omitted from the bath and a tank of stainless steel or high nickel-chromium steel is used, and the cathodes are made of the same material. The slight passivity may be removed by treating the surface with an organic or inorganic reducing agent, e.g. a slightly acidified solution of hydrogen peroxide. The reducing agent may be formed by chemical, electro-chemical or electrolytic action within a solution during any process to which the brass may be subjected after the polishing treatment, e.g. electrodeposition of another metal thereon or colouring by chemical means. Before the polishing treatment, all articles are degreased, e.g. by cathodic treatment in an alkaline solution. An example of a basic electrolyte is water 1 litre, chromium trioxide 60 to 250 grams, phosphoric acid (Sp. Gr. 1.75) 0.1 to 3 litres, an alkali metal bichromate to an amount approaching saturation and for each litre of water contained in the basic electrolyte from 50 to 250 grams of one of the radicals referred to and 90 to 350 grams of a carboxylic acid, approximately one gram of sodium-benzene monosulphonate per litre of metal electrolyte and lead acetate Pb (C2H3O2) 3 aq. 1-2.5 grams per litre of total electrolyte. The Provisional Specification also describes baths containing sulphuric acid as an additional constituent and refers to the inclusion of acetate, oxalate, tartrate and propionate radicals in the bath and to the use of aluminium or nickel as cathode.
Patent GB-1398823-A (GB)
Title: Apparatus for wrapping screw-type electrical terminals
IPC: H01R43/033
Filed: 1973-06-12
Abstract: 1398823 Wire-wrapping tool D L KELLEMS 12 June 1973 28024/73 Heading B3E Apparatus for wrapping bowed ends of wire conductors on electrical terminals comprises a tubular member 10, Fig. 2, having a projecting tongue 11 at one end, and a handle (13), Fig. 1 (not shown), for rotating the mebmer. The member 10 is connected to a tool shank 12 which is hollow to allow the passage of a screw driver 28, Fig. 9, for tightening a terminal screw 32. When the member 10 is placed over the screw the tongue 11 engages the wire 30 and rotating the handle (13) bends the wire 30, Fig. 7, around the screw 32. The tongue leading edge 33 may be sharpend to bite into the wire and become locked with the latter. Stranded wires may be wrapped using a wire containing cup 35. The cup has a bottom wall 37, Fig. 10, provided with an opening 38 for the screw 32, and a slot 39 in the tubular wall to facilitate the passing of a conductor into the cup. The sides of the slot may be tapered, flared, or include a radial seat 46, or a thread (47), Figs. 11-14 (not shown). The screwdriver may be made an integral part of the apparatus, Fig. 15 (not shown), which includes a piston (57) slidable in a barrel (58) and ratchet elements (59), (60). After rotating the handle (65) to wrap the conductor on the screw, pressure is applied to disengage the ratchet elements and move piston (57) towards the handle (65) and compress a spring 61 whereupon the screwdriver (63) is advanced to engage the head 20 of the screw.
Patent GB-447957-A (GB)
Title: Improvements in and relating to exhausting and gas filling machines for electric lamp bulbs and similar receptacles
IPC: H01J9/38
Filed: 1935-10-11
Abstract: 447,957. Evacuating and filling lamp bulbs &c. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Oct. 11, 1935, No. 28138. Convention date, Oct. 12, 1934. [Class 8 (i)] [See also Group XI] Electric lamp bulbs &c. are exhausted and filled with gas by connection to valved heads 12 on a rotary turret 10 having a valve with a rotary section 51 connected by pipes 55 with the heads and located between stationary sections 52, 53 connected respectively to exhausting and gas filling means. The lamps are connected to the heads by tubes 14, Fig. 2, secured air-tightly by rubber &c. washers 16 compressed by screwed sleeves 18, and continued by passages 22 leading to ports 28 covered by diaphragms 29. The diaphragms also control ports leading through the valve 51 to the vacuum and gas, e.g. neon and nitrogen, lines. They are normally closed by spring- pressed rods which are lifted at the proper intervals by levers 36 actuated by pins 40 on blocks 37 rotatably mounted on a shaft 38. Bolts 42, Fig. 1, in a stationary track 4, engage these blocks to actuate the valves. Leak detectors in the vacuum pump connections comprise U-tubes containing mercury which in case of leakage completes a solenoid circuit to cause a lever to push the shaft 38 down so that the pins 40 can no longer engage the valves, which remain closed throughout the motion. The bulbs are first evacuated, then alternately filled with nitrogen and evacuated and finally filled with neon.