baber/WOPTO huggingface dataset:
Patent GB-267800-A (GB)
Title: Improvements in contacts for electric switches, fuses and the like
IPC: H01H1/42
Filed: 1926-08-26
Abstract: 267,800. Callender's Cable & Construction Co., Ltd., and Watson, J. F. Aug. 26, 1926. Contacts. - Contacts for switches, fuses, &c. of the kind described in Specification 157,011 have a compound spring B instead of a single spring. The contact blades enter between the jaws A<1> and the spring B which is composed of two or more strips of phosphor bronze held between a washer D and the base A by a screw C. The adjacent edges of the spring abut against a ridge A<3> which may be formed on the washer D instead of on the base A. The individual strips are preferably connected by rivets B<3> or tongues. A switch fulcrum can be formed by a pivot pin passing through the jaws A', blades E and spring B, the pin being of such a diameter that the screw C passes through a transverse hole therein.
Patent GB-795629-A (GB)
Title: Treatment of platinum-containing catalyst
Inventor: JR GEORGE RAYNOLDS BOND
IPC: B01J23/96
Filed: 1956-07-09
Abstract: Platinum is recovered from used platinum-containing catalyst by treating the catalyst at elevated temperature with a gaseous agent capable of forming a volatile platinum carbonyl chloride complex, and separating and decomposing the volatile complex to recover substantially pure platinum.  The gaseous agent may be phosgene or a mixture of carbon tetrachloride and carbon dioxide. Treatment may take place at 450-800 DEG  F. for 5-60 minutes.  The effluent gas containing the platinum complex may be led into water and metallic platinum obtained by reduction with hydrogen provided by the addition of metallic magnesium; alternatively the platinum may be precipitated by addition of hydrogen sulphide, followed by filtering off and igniting the precipitate.  Another method for recovering platinum from the effluent gas is to heat the gas in a decomposition zone, the platinum if desired being deposited on a granular material circulating through the zone.  A platinum on alumina catalyst containing less than 2 per cent platinum may be treated; the alumina remaining in the treating zone may be washed, dried and reimpregnated with platinum.  The metallic platinum recovered may also be used in the formation of new catalyst.ALSO:Platinum is recovered from used platinum-containing catalyst by treating the catalyst at elevated temperature with a gaseous agent capable of forming a volatile platinum carbonyl chloride complex, and separating and decomposing the volatile complex to recover substantially pure platinum.  The gaseous agent may be phosgene or a mixture of carbon tetrachloride and carbon dioxide. Treatment may take place at 450 DEG -800 DEG F. for 5-60 minutes.  The effluent gas containing the platinum complex may be led into water and metallic platinum obtained by reduction with hydrogen provided by the addition of metallic magnesium.
Patent GB-1169631-A (GB)
Title: Improvements in or relating to Stabilizers for Floating Bodies
Inventor: BELL JOHN
IPC: B63B39/03
Filed: 1967-05-08
Abstract: 1,169,631. Ship stabilizer. MUIRHEAD & CO. Ltd. 22 Feb., 1968 [8 May, 1967], No. 21233/67. Heading B7M. A passive stabilizer comprises a plurality of arrangements having two partially liquid-filled tanks positioned at respective sides of a marine craft and intercommunicating through a liquidfilled channel, air passing between the tanks of all arrangements through an air duct to control the flow of liquid between the tanks. In Fig. 1 there are two arrangements, an upper arrangement comprising tanks 7, 8 connected by liquid duct 10 and air duct 11 controlled by valves 12, 13. A lower arrangement comprises tanks 2, 3 connected by liquid duct 5 and having pipes 14, 15 connecting the respective air space with that of the tank above. Valves 17, 18 each have a closure member with a float to prevent water passing down the pipe 14, 15, the float being weighted to prevent closure of the valve by suction in the lower tank. Valves 12, 13 control the water displacement.
Patent GB-388663-A (GB)
Title: Process for the production of dicalcium phosphate
IPC: C05B11/10
Filed: 1932-07-27
Abstract: Ground mineral tricalcium phosphate is decomposed with a solution containing phosphoric acid and monocalcium phosphate, say at 50-60 DEG  C., and dicalcium phosphate is precipitated from the solution by heating, for example, to the boiling point, the decomposing solution being so concentrated with respect to the acid as to contain free phosphoric acid after the decomposition, and after the precipitation of dicalcium phosphate.  The filtrate after separation therefrom, may, after addition of more phosphoric acid, be employed for decomposing fresh mineral phosphate.  A mixture of phosphoric and sulphuric acids may be added in lieu of phosphoric acid, in which case a fertilizer containing dicalcium phosphate and calcium sulphate is obtained. In another method, the added phosphoric acid may be wholly replaced by sulphuric acid, this being added to the filtrate from a previous decomposition, which is then used after separation from the precipitated gypsum.  Vessels of V2A steel fitted with stirrers and heating apparatus may be employed.
Patent GB-516206-A (GB)
Title: Improvements in inductive elements adapted for co-operation with high-pressure metal-vapour electric discharge lamps
IPC: H05B41/39
Filed: 1938-07-18
Abstract: 516,206. Supply for discharge lamps; transformer arrangements. GENERAL ELECTRIC CO., Ltd., DEBENHAM, W. F. S., and FRANCIS, V. J. July 18, 1938, No. 21261. [Class 38 (iv)] An A.C. supply system for a highpressure mercury vapour discharge lamp includes a known form of inductance ele men t such as a stray field transformer or a choke with a number of windings each independent and capable of connection in series, or in opposition to suit the particular mains voltage to which the discharge lamp is to be connected. An arrangement employing a stabilizing choke, adjustable as stated, consists of an iron core with three windings 230, 10, 5 each brought out to separate terminals 13 to 18. Terminal 13 is connected to the lamp 12 which is connected .with one terminal of the supply the other terminal of which can be connected by links to any one of the terminals 13 to 18 and the terminals themselves interconnected by links to suit the supply voltage. Specification 482,756 is referred to.
Patent GB-532397-A (GB)
Title: Improvements in or relating to flexible mountings for instrument boards
IPC: F16F1/38
Filed: 1939-07-21
Abstract: 532,397. Flexible pivotal mountings. SILENTBLOC, Ltd., and ANDRE, T. B. July 21, 1939, No. 21299. [Class 108 (iii)] A flexible mounting for the instrument board L of aircraft &c. comprises a pair of coaxial sleeves A, B and an intermediate bushing D of rubber &c. bonded or connected by adhesive to A and B. One sleeve is fixed to L by a plate J and bolts K, the other is connected to a supporting bar H by a two-part clamp E, F.
Patent GB-386898-A (GB)
Title: Improvements in or relating to shaft couplings
IPC: F16C1/08
Filed: 1932-07-28
Abstract: 386,898. Flexible shafts ; universal joints. ETABLISSEMENTS E. JAEGER, 2, Rue Baudin, Levallois-Perret, Seine, France. July 28, 1932, No. 21320. Convention date, June 7. [Class 80 (ii).] In shaft couplings, particularly for use in driving revolution counters, speedometers, &c., of the kind in which the flexible or other driving shaft 1 terminates in a socket 3, supported in a bearing 4 secured to the body 5 of the speedometer &c., and carries a prismatic rod 12 engaging a corresponding aperture 11 in the driven shaft 6, this rod, instead of being rigid with the socket, engages a prismatic aperture 13 therein with sufficient play to allow for slight misalignment of the shafts. The rod may also have play in the aperture 11. The rod 12 may be held in place in the socket 3 by flaring its end, as shown, its axial movement being limited by a thrust washer 14. The bearing 4 is secured to the body 5 by a nut 7, the socket 3 being axially located by a horseshoe-shaped key 9, which is sprung over the bottom of a groove 10 and gripped between the parts 4, 5.
Patent GB-1028410-A (GB)
Title: Water-soluble yellow monoazo-dyestuffs and process for their manufacture
IPC: C09B62/51
Filed: 1963-05-28
Abstract: The invention comprises water-soluble yellow monoazo dyes of the formula <FORM:1028410/C4-C5/1> in which the azo group stands in meta-or para-position to the grouping -NHCO-, X represents a hydrogen atom or a carboxyl group and the benzene nucleus A may be substituted by chlorine atoms and/or methyl groups.  The dyes are prepared by conventional diazotization and coupling procedures.  Examples are furnished. The dyes are particularly suitable for colouring natural and regenerated cellulose.
Patent GB-186488-A (GB)
Title: Improvements in iron moulds for casting rolls for rolling mills
IPC: B22D15/00
Filed: 1921-08-11
Abstract: 186,488. Weymerskirch, T. Aug. 11, 1921. Moulds; clamping moulds.-Rolls for rolling mills are cast in chill moulds divided axially and radially, the parts of which are held together by means which can be released to allow movement as the casting cools. The rings 1 are formed in sections held together by spring bolts, and are secured within the casing 2 by bolts 3 passing through apertures 5 with clearance, and provided with springs 4. The rings 1 are formed with clearance 7 filled with combustible packing, so that on loosening the bolts 3 after making the cast, the sections of the mould are free to move both radially and axially. In a modification, the bolts 3 can be released simultaneously by the vertical movement of bars having formed thereon a series of inclines engaging washers on the bolts 3 the rings resting against bevelled surfaces on the casing and in a further modification the rings 1 are supported by nuts on vertical screwed rods which may be raised by wedges. In the form shown in Fig. 9, the rings 1<a> - - 1<e> are divided centrally and these with the rings 1<f>, 1g, are supported by distance-pieces 22 on squared rods 23, capable of baing raised or lowered by a nut 29 and turned to disengage the distance-pieces 22 from the rings by a handle 30. In a further modification the sections of the mould are positioned by bolts held in bars pivoted to the base of the mould and capable of being swung radially to free the sections of the mould. If only a partial chill is required, parts of the rings may be covered with clay 34 held in dovetail grooves as shown in Fig. 12. To facilitate movement the sections of the rings 1 may be made wedgeshaped adjacent to their outer surfaces.
Patent GB-614599-A (GB)
Title: Improvements in and relating to seals for pressure pumps
IPC: F16J15/38
Filed: 1946-07-17
Abstract: 614,599. Stuffing-box substitutes; centrifugal pumps. JACOBSEN, O. July 17, 1946, No. 21412. [Classes 110 (i) and 122 (v)] In a seal for pressure pumps comprising a pump shaft 18 and a rotor 5 connected thereto, the rotor is provided with a thrust collar 11 engaged by a sealing ring 22 surrounding the pump shaft, the sealing ring being subjected to pressure by means of a pressure member 24 having a piston portion slidably mounted in a pressure chamber 37 adapted to be filled with lubricating fluid under pressure, said member being arranged automatically, in response to fluid pressure acting on said piston portion, to move toward said sealing ring for compressing the same. The web 9 of the rotor has blades 14, flanges 15 and vanes 16. Fluid drawn from the inlet 13 which escapes to the rear of the rotor behind flanges 15 is forced by vanes 16 through openings 17 back into the useful pressure liquid stream. Leakage along the shaft 18 is prevented by the sealing ring 22 which is held against the collar 11 by a ring 23 loaded by the piston type sleeve 24. The chamber 37 communicates with a compartment 44 which is filled with lubricant through a fitting 43. The lubricant, and therefore the member 24, are put under pressure by a piston 46 which carries a weight 50. Leakage through the casing 4 is prevented by packing 28 secured by a gland member 29 held by a clamping ring 39, the packing being lubricated through an opening 26 in the member 24.
Patent GB-1151533-A (GB)
Title: Device for Accomodating the Expansion of a Liquid
IPC: F24D3/10
Filed: 1966-05-13
Abstract: 1,151,533. Hydraulic accumulators. F. BRUMME, R. BRUMME and I. LOTT [trading as EFFBE-WERK FRITZ BRUMME K. G. ]. May 13, 1966 [Feb. 19, 1966], No. 21422/66. Heading F1P. [Also in Division F4] A device, Fig. 5, for accommodating the expansion of liquid in a closed circuit central heating system comprises a chamber 29 divided by a flexible diaphragm 39 into a liquid filled space 43 connected at 41 to the system, and a gas filled space 42 connected to a gas enclosure B, the device being of generally flat rectangular configuration for compact installation with the boiler of the system. The gas enclosure B is constructed from two embossed rectangular shells 30, 31 welded together along their rims 33 and formed to provide a peripheral hollow frame 30a, 31a between two opposite sides of which extend lateral embossings forming inter-communicating volumes. In a second construction, Fig. 2, the chamber is defined by two inner shells 15, 16 welded together between two outer shells 11, forming with the inner shells the gas enclosure 9a, 9b in two parts connected through apertures 20. A diaphragm 19 is held between the inner shells 15, 16 and divides the chamber into liquid space 8 and gas space 9. A connection 24 in the outer shell 10 communicates liquid in the system to the space 8. The gas enclosure 9a, 9b is connected to the gas space 9 via apertures 21.
Patent GB-692759-A (GB)
Title: A thrust bearing assembly for an axle-box
IPC: B61F5/32
Filed: 1951-09-11
Abstract: 692,759. Axle-bearing guiding arrangements SCHWEIZERISCHE LOKOMOTIVUND MASCHINENFABRIK. Sept. 11, 1951 [Sept. 22, 1950]. No. 21428/51. Class 103 (vi). [Also in Group XXXIV] Rubber bushings 5 about each guide-pin 4 for an axle-box permit a certain general yielding of the box in respect of the pins, so that slight variations in the inclination of the wheel pairs to the vehicle frame will not bring about binding of the box to its pins.
Patent GB-661825-A (GB)
Title: Driving means for a dynamo enclosed in the hub of a bicycle
IPC: B62J6/12
Filed: 1949-08-19
Abstract: 661,825. Electric lighting devices for cycles. MOEN. O. Aug. 19, 1949 [Aug. 21, 1948], No. 21577/49. Class 136(i) [Also in Group XXXV] In a driving means for a dynamo arranged in a cycle hub the dynamo is mounted on a plate 21 connected with the wheel fork and/or the hub spindle and is driven from the hub casing 2 built wholly or partly as a drum 4, and a metal ring 17 is rotatably supported concentrically in the hub casing on rollers 7, 7<SP>1</SP>, 15, 15<SP>1</SP>, at least one of which has a driving connection with the dynamo shaft. During movement of the bicycle, the ring 17 is pulled around by means of a projection 19 on the drum 4 engaging a projection 20 on the ring 17. By displacement parallel to the axis of rotation the member 19 may be brought into and out of engagement with the member 20. An inner ring 18 is driven by the rollers 7, 7' and in turn drives rollers 13, 13'. The dynamo shaft 16<SP>1</SP> is driven by the rollers 13, 13', 15, 15'. All the rollers are journalled to the inner side of the plate 6 which is rigid with the plate 21. To allow rotation in a direction perpendicular to their axis of rotation, the rollers 13, 13<SP>1 </SP>are mounted on arms 9, 9<SP>1</SP>, and the rollers 15, 15<SP>1</SP>, on arms 10, 10<SP>1</SP>. The arms are journalled on pins 11, 11' on the plate 6. The rings 17, 18 are preferably of spring steel. The effect of wear is eliminated by making the ring 17 slightly smaller so that it is deformed when placed around the rollers as shown at 17<SP>1</SP>, and the ring 18 is made slightly bigger as shown at 18'.
Patent GB-520527-A (GB)
Title: Printing materials for colour photography
IPC: G03C7/28
Filed: 1938-07-21
Abstract: 520,527. Colour photography. GASPAR, B. July 21, 1938, No. 21654. [Class 98 (ii)] Multilayer printing material comprising three superimposed silver halide emulsion layers on a single support has a front emulsion layer containing silver bromide sensitized other than to blue light and has a speed much less than that of the middle blue-sensitive layer. The front layer may be sensitized to red with pinacyanol or green with benzthiopseudocyanine ethyliodide and contains the #-naphthoquinoline salt of Diamine Sky Blue FF, the middle layer is blue-sensitive and contains the diphenylguanidine salt of Chlorantine Red 8B, and the rear layer is sensitized to infra-red with kryptocyanine and contains the diphenylguanidine salt of Chrysophenine G. The taking material may have a front uncoloured blue-sensitized layer, a middle green-sensitive layer containing the diphenylguanidine salt of Chrysophenine G, and a redsensitive rear layer containing Benzopurpurine 10B. After production of a colour picture by exposure, development and dye destruction and forming a dye-image in the front layer in a colour absorbing infra-red but transmitting blue and green, the picture is printed by contact or projection on to the printing material using blue, green, and infra red light simultaneously or successively.. The printing material is also processed to give a colour picture by the dyedestruction process. In a modification the taking material has a middle red-sensitive yellow-dyed layer and a rear green-sensitive blue-green dyed layer, the colourless front layer being processed to give an infra-red absorbing image, and the printing material has a front red-sensitive magenta dyed layer, a middle blue-sensitive bluegreen dyed layer, and a rear infra-red sensitized yellow dyed layer. The front colourless layer of the taking material may be on a separate support and processed to a black silver image. The upper layer on the other support may also be colourless if a yellow filter is arranged behind the front layer on the separate support. The layers may contain removable filter dyes, which may also be in separate intermediate layers. A blue or magenta filter may be provided behind the middle layer.
Patent GB-597714-A (GB)
Title: Envelope stuffing machine
IPC: B43M3/04
Filed: 1945-08-24
Abstract: 597,714. Feeding sheets. THOMPSON, R. H. Aug. 24, 1945, No. 21707. [Class 100 (i)] [Also in Group XVII] In a machine for inserting folded letters or circulars into envelopes, the letters &c. are fed from two or more adjustable magazines arranged upon a slotted table 10 along a central guideway of which can slide a block 22 fitted with a ram 20 of length greater than the longest folded side of letters A, B, each of which is folded to form three flaps a, a<1>, a<2>; or b, b<1>, b<2>, the longer sides a<2>, b<2>, being adapted to rest on ledges 26 connected to the front sides of the magazines. The sides 27 of the magazines are adjustably connected to the table 10, and the rear side is adjustable longitudinally and is fitted with scraper fingers 42 to prevent double feed. The lowest letter rests on blocks 39 with inclined parts 40 to facilitate the separation of the letter which is effected by the combined action of fingers 33, Fig. 2, which are carried by pivoted arms operable by a sliding bar 74 connected by a link to a crosshead which is pressed towards the right, Fig. 2, by springs 80 and is moved to the left by the action of a stirrup 17 connected to the block 22 which carries the ram 20. A pin 92 on an endless chain 94 engages the stirrup 17 and reciprocates the block 22 and ram 20 which is moved so as to pass between the folds a<2>, a : and b<2>, b, after the folds a<2>, b have been lifted by the fingers 33 to facilitate insertion of the ram. The magazine ends 35 are slotted to permit passage of the ram with the folded letters. The movement of the bars 74 is limited in the forward direction by a dash-pot device, and slots 32 are provided in the table 20 to permit of movement of the fingers 33. In a modification of the means for actuating the fingers 233, Fig. 6, they are carried by arms 272 controlled by pins 275 on eccentrics 273a, and the arms 272 are provided with pins engaged in slots 271. The pins pass close to the ends of the ledges 226 and their tips move in an arcuate path indicated by dotted lines in Fig. 6. The evelopes C are arranged in a magazine with the front c uppermost and the flap c<2> resting on a ledge. A set of fingers 33 opens the envelope far enough for the ram 20 bearing the letter A nested in letter B to be inserted completely into the envelope C, and the whole package is moved past a spring- controlled stripping member 65 from which the stuffed envelope falls into a receiver, and the ram 20 is then moved back to its starting position.
Patent GB-734994-A (GB)
Title: Improvements in or relating to napkins for children
IPC: A41B13/04
Filed: 1953-08-06
Abstract: 734,994. Napkins. MURPHY, M. A. Aug. 6, 1953 [Oct. 10, 1952; April 22, 1953], No. 21772/53. Class 141. A child's napkin of the type having a waisted shape intended to be folded centrally and secured by detachable fastening means at one or both ends of the nakpin is characterized in that it comprises two thicknesses of material, an opening 7 being formed at one side 1 giving access to a pocket between the two layers adapted to hold a waterproof and /or absorbent pad 8, the detachable fastening means comprising a plurality of spaced apart press studs 4 on reinforcing tapes 5 projecting from the exterior surface near the bottom corners, corresponding press stud sockets 6 being positioned near the upper corners. Elastic insertions 3 may be provided at the ends and securing tapes 10 may also be provided.
Patent GB-1048135-A (GB)
Title: Photographic reproduction process
IPC: G03C7/18
Filed: 1963-05-31
Abstract: 1,048,135. Photographic processes; masking images. EASTMAN KODAK CO. May 31, 1963 [June 1, 1962], No.21784/63. Heading G2C. An image is produced by exposing image-wise to ultraviolet radiation a u.v.-sensitive, visiblelight insensitive print-out material having a transparent support and exposing to said image alone or in register with another image a visible-lightsensitive material using visible light freed from u.v. radiation by a u.v. filter integral with the printout material or separate therefrom. The printout material forms a grey or coloured image and may be used in the manner indicated above in the duplication of a negative or positive image or as a monochrome mask for correcting contrast in a negative or for colour-correcting colour separation negatives.
Patent GB-1283889-A (GB)
Title: Filament lamp
IPC: H01K1/38
Filed: 1971-04-19
Abstract: 1283889 Electric incandescent lamps PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [18 Feb 1970] 21811/71 Heading HlF The current supply conductors 9, 11 of an electric incandescent lamp are secured in a pinch seal 3 at one end of the lamp and are surrounded by respective supporting members 21, 23 which are also secured in the seal, the members extending for different distances within the envelope space.
Patent GB-1047526-A (GB)
Title: Improvements relating to the production of toothed gearing
Inventor: SHOTTER BRIAN ALFRED
IPC: B23F21/16
Filed: 1962-06-06
Abstract: 1,047,526. Gear-cutting. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 23, 1963 [June 6, 1962], No. 21899/62. Heading B3K. [Also in Division F2] In a hob for cutting gears of Wildhaber- Novikov form, including crowned gears, the thickness of the teeth at a constant radius varies axially uniformly from one end of the hob to the other. The hob is adjusted axially to vary the backlash in the cut gears. Crowned teeth are produced by moving the hob axially during cutting. The hob may have different leads on its opposing flanks.