baber/WOPTO huggingface dataset:
Patent GB-1432702-A (GB)
Title: Quadrature hybrid couplers
IPC: H03H7/48
Filed: 1973-05-29
Abstract: 1432702 Quadrature hybrid couplers WESTERN ELECTRIC CO Inc 29 May 1973 [30 May 1972] 25435/73 Heading H3U A quadrature hybrid coupler, Fig. 2A, comprises mutually dual multipole networks N, N 1 *, the four ports being, respectively a<SP>1</SP>, 1; b, 2; d<SP>1</SP>, 1; c, 2. Baluns (12, 13), Figs. 2B, 2C (not shown), comprising lengths of transmission line, or 1 : 1 transformers may be coupled to ports a<SP>1</SP>, 1; d<SP>1</SP>, 1 to produce a coupler useable with grounded common junctions (3, 4; 2, Figs. 2B, 2C) for all ports. The parallel combination of the core inductances of the baluns may comprise part at least of shunt inductance in network N 1 , spurious capacitance of the baluns providing at least part of shunt capacitance in network N 1 *. The networks may take any of the forms, having q>1, shown in Fig. 9. The transit times through the respective baluns may be equalized using delay lines (70, 71), Fig. 10 (not shown). Such delay lines may be replaced by further baluns (82, 83), Fig. 11 (not shown). A coupler network 20, Fig. 2D, comprises a pair of cascaded quadrature couplers 21, 22, a 180 degree phase shifter 23 being provided in one of the cascade connections. Design procedure for a quadrature coupler.- Transmission coefficients t<SP>1</SP> (Wj) are specified at a desired number, q>1, of frequency points, see Fig. 5 (not shown), and, using disclosed polynomial analysis, networks 50, 60, Fig. 9 can be designed, each having the disclosed configuration appertaining to the chosen value of q.
Patent GB-312878-A (GB)
Title: Improvements in vices
IPC: B25B1/24
Filed: 1928-09-05
Abstract: 312,878. Brockhaus, P. Sept. 5, 1928. vices.-The base 1 of a vice has two parallel rails 2 connected by crossbars 3, 4 at the ends and centre, and the rails are formed with lateral channels with horizontal or converging walls 5 machined to provide guide surfaces for members 7 depending from the jaws, the jaws and guide rails being spaced apart elsewhere at 8 to reduce friction. Wear may be taken up by means of bolts 9 passing through the members 7 and through slots 10 in the rails; square heads 11 on the bolts slide on the inner surfaces of the rails. The jaws 6 are adjusted by a right and left-hand screw 12 engaging nuts 13 carried by the jaws, the screw being mounted in an end bearing 14 and a central bearing 15 and held against endwise movement by collars 16, 17. A cover plate 19 presents access of dirt or filings to the adjusting screw.
Patent GB-1187327-A (GB)
Title: Rotary Ball Valve and Seal therefor
IPC: F16K5/06
Filed: 1968-05-28
Abstract: 1,187,327. Valves. B. C. RICHARDS & CO. PTY. Ltd. 28 May, 1968 [30 May, 1967; 8 Sept., 1967], No. 25567/68. Heading F2V. A rotary ball-valve has composite seats each of which comprises a p.t.f.e. seal ring 14, a resilient backing 15 and a rigid annular retainer 18. The seal ring may be inset into or integral with the backing, and the limbs of the latter can be at an obtuse angle or at rightangles. The stem 25 has a p.t.f.e. sealing washer 26 and is retained by circlip 27 and spring washer 28. The valve may also be so constructed that the ball aperture is equal in diameter to the passages in the body.
Patent GB-645513-A (GB)
Title: Improvements in or relating to sliding doors
IPC: B60J5/06
Filed: 1948-10-01
Abstract: 645,513. Rail and road vehicles. WHITSON & CO., Ltd., J., and WHITTIT, A. E. Oct. 1, 1948, No. 25685. [Classes 103(ii) and 108(i)] [Also in Group X] Motor vehicle doors 12 capable of swing- ing bodily away from the plane of the opening and of sliding along a track across and beyond it are carried by links 10 pivoted to them near the top, the other end of the links being pivoted to members 15, 16, carried in a straight guide rail 9; cooperating guide elements comprising upright rollers 64, 65, on the door engaging both sides of depending flanges 20, 21, on the doorway surround are provided near the lower edge of the door. Additional guides in the form of upright rollers 40 may be arranged at or near the top of the door moving within rails 42 as described in Specification 638,699.
Patent GB-273940-A (GB)
Title: Improvements in aeroplane construction
IPC: B64C3/00
Filed: 1926-10-16
Abstract: 273,940. Abreu, J. S. Oct. 16, 1926. Aircraft-carrying auxiliary aircraft; aeroplanes; cars; propelling; skids. - An aeroplane is constructed with a fuselage connected by instantaneous release means to a body carrying propelling mechanism and adapted to be operated as a glider when separated from the body. This arrangement in addition to permitting safe descent after shedding the body in case of disablement provides for the use of a single fuselage on any of a number of bodies, which avoids transhipping of cargo on long journeys made in stages and enables the replaced body to be overhauled. The fuselage 7, Fig. 2, provided with planes 8, wings 9, and rudder 10, is shown detached from a body 1 fitted with propelling mechanism and wheels 3 but is secured thereto by wedges on longitudinal bars 11 operated by the pilot through a pivoted lever 17, which wedges enter lugs 14 on the body 1 when the fuselage is lowered thereon. Springs 19 on the fuselage facilitate its separation from the body when the wedges are withdrawn, and also act, in conjunction with the tail skid 21, as resilient skids on landing. On assembly, a hinged board 6 carrying the propeller controls passes up through a slot on the bottom of the fuselage, so that all controls are suitably positioned for the pilot, and a spring-hinged cover closes the aperture to avoid inrush of water in case the fuselage when separated descends on water.
Patent GB-1519363-A (GB)
Title: Preparation of aqueous soy protein
IPC: A23L11/00
Filed: 1976-06-22
Abstract: 1519363 Soy proteins BRISTOL MYERS CO 22 June 1976 [23 June 1975] 25842/76 Heading C3H A process for preparing an aqueous purified soy protein solution having a protein coefficient to at least 0À8 and containing 1 to 12%, by weight, of protein and up to 0À1%, by weight, of fat, comprises (a) adding to an aqueous extract of particulate defatted soybean containing 2À5 to 20%, by weight, of solids, a sufficient amount of a water soluble base to adjust the pH thereof to within the range of pH 10À1 to pH 14, whereby an insoluble material results; (b) separating the insoluble material from said extract to yield a clarified extract containing 1 to 12%, by weight, of protein, 1 to 10%, by weight, of carbohydrate, about 0À3 to 3%, by weight of impurities (including mineral constituents) reported as ash, and up to 1%, by weight, of fat; (c) neutralizing said clarified extract to a pH of from 6 to 10; (d) separating carbohydrate and mineral constituents from said clarified extract by ultrafiltration employing a semi-permeable membrane which has the capability to retain desirable proteins in the said clarified extract and to provide thereby as a retentate said aqueous purified soy protein solution. Examples describe the treatment of defatted soybean with aqueous caustic soda followed by removal of insoluble material by centrifugation. Further clarification of solution is achieved by high speed centrifugation and acidification with HCl and ultrafiltration. The initial neutralized extract is concentrated until half its volume is collected by continuous recycling through a hollow-fibre apparatus. Details of its use potential as a milk substitute, sole diet, meal substitute combined with other foodstuffs are also disclosed.
Patent GB-727279-A (GB)
Title: Improvements in or relating to conveyors
Inventor: LEVETT PETER
IPC: B61B10/04
Filed: 1952-10-15
Abstract: 727,279. Floor truck haulage systems. KING, Ltd., G. W. Oct. 9, 1953 [Oct. 15, 1952], No. 25856/52. Class 104 (2). A conveyer system in which wheeled trucks 16 are driven by an endless chain disposed below floor level has pivoted pusher dogs 14 associated with the chain and normally disposed in the inoperative position but arranged so that an actuating member 28 on each truck 16 can move the dog 14 into engagement with an element 24 on each truck 16 to drive the same. The pusher dogs 14 are pivotally mounted on rider plates 10 or trolleys coupled to the endless driving chain. Each truck 16 has a draw-bar 17 supported by a pivot-pin 18 slidable under the control of a spring 23 in slots 19 formed in the truck frame members 20. The forward end of the draw-bar 17 is forked at 25 and carries a vertically sliding member 28. The member 28 is held in the inoperative position by a pin 29 engaging the upper surface of the forked end 25. The member 28 is rotated until the pin 29 engages a slot 30 and is then moved downwardly to the operative position in which it depresses a cam lever 15 to raise the pusher dog 14 to the operative position in which the dog 14 will engage the element 24 on the draw-bar 17. In the event of the truck 16 meeting an obstruction the dog 14 continues to press against the element 24 to move the draw-bar 17 forward against the action of the spring 23 until a pin 32, mounted on a release lever 31 and engaging an inverted " L "-shaped slot 33 in the bar 17, registers with the vertical portion of the slot 33 whereupon a spring 34 lifts the bar 17 and hence the member 24 out of engagement with the pusher dog 14. The member 28 is provided with a pin 28<SP>1</SP> which engages the lower limb of the lever 31 so that as the lever 31 is tilted about a pivot 31<SP>1</SP>, arranged on the frame members 20, the member 28 is moved upwards. The lever 31 and the drawbar 17 are returned to their initial positions by downward hand or foot pressure on a plate 35. The driving chain 38, Fig. 3, is held taut by a tensioning device comprising a driven sprocket 39 an adjustable tensioning wheel 14-and an idler sprocket 41. Where the chain 38 is diverted over the tensioning device the trucks 16 are propelled across the intervening space by an endless chain 42 driven from the sprocket 39.
Patent GB-446622-A (GB)
Title: Improvements in or connected with bows for stringed musical instruments
IPC: G10D3/16
Filed: 1935-09-18
Abstract: 446,622. Violin &c. bows. WILLIAMS, Ltd., J., 32, Great Portland Street, London, and BROWN, J. H., Halford House, Richmond, Surrey. Sept. 18, 1935, No. 25871. [Class 88 (ii)] A bow for a stringed musical instrument has five studs or recesses 2b serving to locate the fingers and thumb by touch without supporting them. The studs or recesses are individually attached to or formed in the bow itself or in a tubular mount 7. The stick may bear studs or recesses marking subdivisions of the length of the hair.
Patent GB-1433823-A (GB)
Title: Furnace wall containing spaced parallel water tubes and blocks  mounted thereon
IPC: F23M5/00
Filed: 1973-05-31
Abstract: 1433823 Clamps GOTAVERKENS ANGTEKNISKA AB 31 May 1973 [19 June 1972] 25916/73 Heading E2B [Also in Division F4] A furnace wall comprises spaced parallel water tubes with blocks 12 of fire-resistant material retained by wedges 13 against those tube surfaces which face the furnace interior. The wedges act against waist portions 18 of the blocks. The surface of each block has a radius r which is slightly smaller than the external radius R of the tube, whereby the block, when first applied to the tube, contacts the tube along its longitudinal edges only. The wedge brings the blocks and tubes into firm contact. A compound to improve heat transfer may have been smeared at the interface. As shown, each block 12 encloses a quarter of the tube circumference. In a modification (Fig. 3 not shown) each block (19) encloses approximately a half of the tube circumference, each half of the block (19) being similar to a block 12. Thus each block (19) initially contacts a tube along edge portions (16) and also along an intermediate portion (20) thereof. Fig. 1 (not shown) illustrates wedges having grooves (22) which provide fins at the furnace interior. The exposed faces of the blocks may be formed in the same manner. As shown, the wedge 13 is tightened from the outside of the furnace but Fig. 4 (not shown) illustrates an embodiment with tightening from the inside. The water tubes are included in the circulation system of a steam boiler.
Patent GB-890606-A (GB)
Title: Fabrication of hollow articles
Inventor: HEUER CHARLES ARCHIBALD
IPC: B21D53/04
Filed: 1960-07-26
Abstract: 890,606. Moulding hollow articles from thermoplastic sheets. OLIN MATHIESON CHEMICAL CORPORATION. July 26, 1960, No. 25953/60. Class 87(2). [Also in Group XXII] A method for fabricating an expanded hollow article e.g. a panel for a refrigerator evapor ator, from a blank having un joined inner portions comprises applying a relatively large area of weldinhibiting material 5 to a surface of a, e.g. aluminium, sheet 1 applying to said surface a strip of weld-inhibiting material 12 running in a direction away from said first area and having a width equal to the width of said first area, both widths being transverse to said direction, positioning a second aluminium sheet adjacent the first sheet and welding said sheets together in the areas not separated by weld-inhibiting material by rolling to form a blank or panel, expanding said relatively large, unjoined area to form an expanded hollow article, e.g. the accumulator of the panel and at least simultaneously therewith expanding said second area whereby any distortion e.g. warping or buckling, which might otherwise form in the web adjacent said relatively large expanded area is directed away from said large area in the direction of said strip adjacent the outer edges of the blank which are subsequently trimmed from the blank or panel 29. The blank or panel is expanded between rigid restraining pads 19 and 21, Fig. 3, using a fluid pressure of 3000 p.s.i. With the expanded blank removed from between the pads or with the pads spaced apart the full amount of the desired expansion a fluid pressure of 400 p.s.i. is injected into the hollow portion 5<SP>11</SP> to further expand the accumulator 9<SP>11</SP> to its final form. The expanded strip portion 12 draw in metal in the web 29 of the panel approximately the same as the amount drawn in by the accumulator 9<SP>11</SP> and prevent distortion of the web adjacent the accumulator. Finally, the distorted web portions 33 are trimmed to form a panel as shown in Fig. 6. The panels may be fabricated from thermoplastic sheets or combinations of metal and thermo-plastics.
Patent GB-265887-A (GB)
Title: Ribbon spool mechanism for typewriting machines
IPC: B41J11/62
Filed: 1926-10-18
Abstract: 265,887. Handley, G. F., and Royal Typewriter Co., Inc. Oct. 18, 1926. Ink-ribbon mechanism. - In a typewriting- machine, each ribbon spool housing 1, Fig. 2, carries a pivoted member 6 for preventing accidental displacement of the spool 2 during transport or use of the machine, the member being pivoted below the housing, preferably on a bracket 4, and projecting into the housing. The member is preferably held in position by a a spring 9, and the end 7 of the member is rounded so that on detaching the spool the member is cammed outwards by the lower flange of the spool. In portable machines employing housings of light construction secured to brackets, 13, Fig. 3, on the framework, each housing is provided with a tie-plate 16 for resisting strain on the housing when the spool is removed therefrom, the tie-plate being secured for instance by screws 17, 18, to the housing and the mask H which encloses the framework of the machine.
Patent GB-449595-A (GB)
Title: Improvements in or relating to shorthand writing machines of the syllable-writing type
IPC: B41J3/26
Filed: 1935-09-19
Abstract: 449,595. Typewriters. VONCK, G. H. C., 9, Laan van Meerdervoort, The Hague. Sept. 19, 1935, No. 26026. Convention date, Oct. 3, 1934. [Class 100 (iv)] Stenographic type-lever machines ;keyboards.- In a syllable-writing stenographic machine in which the point of contact of each type with the platen depends upon its position in the type-basket, the types are arranged in a sequence with respect to the platen other than that corresponding to the position of the keys in one or more of the horizontal rows on the keyboard. The key 1, Fig. 1, slides through holes in plates 9, 10, against the action of a spring 11, and is provided with arms 12, 13 carrying a pressure bar 14. The bar 14 is provided with a steel ball 15 acting on a cam 17 which operates the spring-returned type-lever 8 by means of a draw-bar 20. To permit different relative arrangements of the type-levers and keys, the arm 25, Fig. 2, for a key 21 may be curved to pass round the arm 26 of the key 22 and co-operate with the appropriate cam 32. To print frequently occurring sequences of letters, one key may be provided with forked arms to operate two or more cams which are also operable by their respective single keys. The keyboard assembly can be removed and transferred to another machine.
Patent GB-1126105-A (GB)
Title: Antacids and process of making the same
IPC: A61K33/08
Filed: 1966-06-10
Abstract: 1,126,105. Antacid. ARMOUR PHARMACEUTICAL CO. 10 June, 1966, No. 26039/66. Heading A5B. Antacid compositions comprise a co-dried mixture of gelatinous Al(OH) 3  and gelatinous magnesium carbonate, hydroxide or trisilicate in which the atomic weight ratio Al:Mg is within the range 2:1 to 0.25:1 and at least 2% by weight of a hexitol e.g. sorbitol or mannitol. They may be in the form of a slurry, powder or tablet comprising conventional excipients.
Patent GB-578578-A (GB)
Title: Fluxes for soldering
IPC: B23K35/36
Filed: 1944-12-29
Abstract: 578,578. Soldering fluxes. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., and POLLETT, W. F. O. Dec. 29,1944, No. 26065. [Class 82 (ii)] A soldering flux has as one of its two principal components a mono-ester of which the acid is phthalic acid or an aliphatic acid of the formula COOH. (CH2)n.COOH where n is not less than 2 nor more than 8, and the alcohol has the formula CnH2n+1.OH where n is not less than 3 nor more than 8, or is benzyl alcohol, or a mixture of such esters, and as the other principal component one or more than one solid, or semisolid material of a resinous, fatty, waxy or greasy character, miscible with the ester, substantially non-corrosive and not freely volatile at soldering temperatures, the second component being present in sufficient quantity to ensure that the residue after soldering is non- corrosive. The second component may be rosin, stearic acid, beeswax, tallow, petroleum jelly or coumarone resin, or a mixture of these, and there may also be present a solvent, e.g. carbon tetrachloride or turpentine, for both of the principal components. The first component should preferably be present in the range 5 per cent to 60 per cent. Examples are given of suitable mixtures.
Patent GB-728205-A (GB)
Title: Photo-sensitive diazotype coated paper plate for photo-lithography
IPC: G03F7/016
Filed: 1953-09-22
Abstract: 728,205. Photo-lithographic diazotype paper plates. WARREN CO., S. D. Sept. 22, 1953 [May 22, 1953], No. 26099/53. Class 98 (2). Paper is provided with a hydrophilic calendered coating layer comprising insolubilized carboxyalkylhydroxyalkyl cellulose and a greater quantity of blanc fixe or titanium dioxide as pigment, and then an aryl amino phenylene diazonium sensitizing layer, which may be of the aldehyde condensate or diazo sulphonate type, and which is transformable by actinic light into an ink-receptive condition. A wood pulp paper containing clay filler, rosin size, alum and acidified melamine-formaldehyde condensate surface-sized with ammoniacal casein treated with formaldehyde may be used and for long printing runs should be waterproofed as with asphalt; but it is preferred to provide several coatings comprising (a) an anti-curling water-resistant backing coating for the non- printing side of the paper containing clay, ammonia solvated casein and dimethylol urea, (b) a first, water-impervious coating for the front of the paper containing clay, emulsion polymerized styrene-butadiene copolymer and also polystyrene, (c) a second, somewhat hydrophilic coating as of pigmented and insolubilized casein, soy or glue, but preferably one containing barium sulphate, casein and dimethylol urea on top of coating (b) and serving to avoid possible ink-acceptance by the latter; and (d) the particular coating of the invention of which a single example specifies titanium dioxide, sodium carboxymethylhydroxyethyl cellulose, melamine-formaldehyde condensate as insolubilizing ingredient, triethanolammonium chloride plasticizer, the sodium sulphate derivative of 7 - ethyl - 2 - methyl - undecanol - 4 as wetting agent, tributyl phosphate and Hcl to make pH 5.7. All of these coatings may be applied in aqueous dispersion by an air-knife coater and dried and calendered. The preferred sensitizer is made by action of sodium sulphite on the condensation product of the zinc chloride double salt of diazotized para-amino-diphenylamine with formaldehyde and is applied in aqueous solution over coating (d) and dried, and sensitive plates so made remain in condition after 12 months' storage. The plates may be exposed under a negative, wiped with oleic acid to intensify the ink-receptiveness of the exposed image, swabbed with water to remove unexposed areas and oleic acid lying thereon, wet out with aqueous glycerin and ammonium acid phosphate and then run in a rotary offset duplicator to give 15,000 or more prints. The carboxyalkylhydroxyalkyl celluloses may be made by the method of Specification 670,672, [Group IV (a)]. Other diazo sensitizers as exemplified in Specification 697,521 may be used.
Patent GB-518297-A (GB)
Title: A support for portable drilling machines
IPC: B23B45/14
Filed: 1938-09-07
Abstract: 518,297. Drilling. HARVEY, G. C. Sept. 7, 1938, No. 26135. [Class 83 (iii)] Portable drilling machines are so clamped to the arm of a stand or like support that rapid forward movement when the drill breaks through is prevented. The feed screw 11 attached to the drilling - machine engages a handled nut 10 having a ball - and - socket connection 7 with the base 6 of a clamp that engages an arm on a drill stand or an arm clamped to a column forming part of a structure &c. The top plate 4 of the clamp is slotted to engage with bolts 2 pivoted to the base 6.
Patent GB-1104674-A (GB)
Title: Circuit breaker apparatus
IPC: H01H1/22
Filed: 1965-06-21
Abstract: 1,104,674. Contacts; heavy current switches. LA TELEMECANIQUE ELECTRIQUE. 21 June, 1965 [22 June, 1964; 13 May, 1965], No. 26165/65. Heading H1N. The contact members 3 of a heavy current switch are divided in two by slots 6 and the contact surfaces 7 are so formed that current entering the contact by a base portion 1 can reach an arc root X only by an inwardly curving path such as M so as to create a magnetic force tending to move the arc root inwardly towards the slot and upwardly towards the tips of horns 12. Each contact is a channel-shaped member 3, slotted at 6 and cut away at 11, made of copper or a copper-chromium alloy, and having a silver contact element 7 brazed to it, the edges 8, 9, 10 of element 7 being bevelled. In a modification (Figs. 3, 4, not shown) the moving contact consists of two separately biased portions (29a, 29b) mounted together, to form the slot and cut away portions between them, upon a carrier (30). An arc extinguishing chamber composed of metal plates is mounted upon the switch terminals (21, 22). In another modification (Figs. 5-7, not shown), the triangular cut-away portion 11 is replaced by a circular hole (55).