baber/WOPTO huggingface dataset:
Patent GB-422322-A (GB)
Title: An apparatus for extracting sand from a supply of sand and water such as is delivered by a gravel pump after the stones larger than sand have been screened out
IPC: E02F7/06
Filed: 1934-05-31
Abstract: 422,322. Gravity-separation apparatus. CHESHUNT SAND & GRAVEL CO., Ltd., and SQUIRE, G. F., River Lea Wharf, Windmill Lane, Cheshunt, Hertfordshire. May 31, 1934, No. 16211. [Class 46] Apparatus for separating sand from a mixture of sand and water comprises one or more receptacles B each with an elevator F for removing settled sand and one or more overflow bays D, so constructed and arranged that the horizontal distance from the furthest point of an overflow to the digging point of the elevator is not greater than the vertical distance of the digging point from the level of the overflow. The mixture of sand and water is supplied by a trough A, which has its side J adjustable to ensure equal distribution of sand to the receptacles B. The elevator has buckets which are perforated at the sides and bottom. The lower shaft of the elevator is supported on wood bearings forming part of an auxiliary frame P, which is held down and adjusted in position on the main frame C by means of wedges L. The buckets discharge the sand into a shoot H, which directs it on to a delivery shoot G. The shoot G projects into the shoot H, its upper end being provided with a renewable plate N, the end of which is formed as a hook and serves to keep it in place.
Patent GB-402788-A (GB)
Title: Improvements relating to diacetone alcohol
IPC: C07C49/17
Filed: 1932-06-08
Abstract: The separation of diacetone alcohol from unchanged acetone is effected by distillation under ordinary pressure in the presence of added water, which may be 10 per cent by volume of the diacetone alcohol.  By the time the temperature in the still reaches 105 DEG --107 DEG  C. practically the whole of the acetone and some of the water will have distilled off.  The rest of the water is then distilled off under considerably reduced pressure so as to prevent the temperature rising above about 105 DEG  C., and finally the diacetone alcohol is distilled.  Alternatively the initial stages of the distillation may be effected before the addition of water, which however must be added before the temperature reaches 105 DEG  C.
Patent GB-108255-A (GB)
Title: Improvemed Lifting Truck or Trolley.
Inventor: KINBER WALTER EDWARD
IPC: B62B3/06
Filed: 1916-11-14
Abstract: 108,255. Kimber, W. E. Nov. 14, 1916. Hand-trucks with lifting platforms. The platform 1 connected by links 2, 6 to the lower frame 5 is adapted to be raised by the handle 11, connected by slotted links 10 to the cross-bar 9 of the platform. A frame 16 pivoted to the frame 5 is provided with one or more projections 18 for engagement with the bar 9 to hold the platform in the raised position. The frame 16 is urged upwardly by a spring 19 and can be depressed by the foot to disengage the locking means 9, 18 and allow the platform to fall. To regulate the falling movement, the frame 16 carries a brake shoe 15 which is brought by de. pression of the frame, into contact with a quadrantal surface 14 on the link 6. The surface 14 may be eccentric to increase the braking action. By providing the frame 16 and the link 10 with one or more intermediate projections 18<x>, the raising of the platform may be effected in stages. The handle 11 can be locked in the vertical position by catches 12 adapted to engage the member 13 projecting from the frame 5 and operable by rods 22. The truck shown is of the kind having a pair of wheels 25 and single fore and aft floating wheels 4, 8, and the links 2, 6 are pivoted on the axes of the wheels 4, 8.
Patent GB-493567-A (GB)
Title: Improvements in or relating to wire boxes
IPC: A47L23/20
Filed: 1937-06-12
Abstract: 493,567. Boxes; cabinets; shelves. LOCKER & CO., Ltd., T., and LOCKER, J. R. June 12, 1937, No. 16355. [Class 18] [Also in Group XIV] A box to hold shoes &c. is made of wire mesh to facilitate cleaning and is partitioned by means of a wire mesh shelf c and pairs of wires d secured at their ends to vertical wires e. The front b lets down to give access to the interior, but it can be fastened when closed by a staple f and hasp g. Angle pieces or locating feet enable several boxes to be stacked, and non- perforated plates detachable from or hinged to the boxes can be sandwiched between stacked boxes to prevent dirt from the upper compartments falling into the lower ones. Numbered tabs or holders for tickets can be provided on the boxes,
Patent GB-794998-A (GB)
Title: Improvements in or relating to web or ribbon tensioning mechanisms
IPC: B65H23/18
Filed: 1955-06-08
Abstract: 794,998. Feeding webs. HUCK, W. F., ALBRECHT, A. J. and WEKEMAN, S. N., [trading as HUCK CO.]. June 8, 1955, No. 16433/55. Class 100(1) A mechanism for maintaining a constant tension in a moving web comprises a pair of co-operating feed rollers between which the web passes, a driven pulled and a variable diameter pulley for each roller, a driving connection between each roller and its associated driven pulley, and a V-belt interconnecting the driven and driving pulleys associated with each roller. As shown, a plurality of webs B pass between rollers 78 and 79 carried by shafts 99 and 100 mounted in levers 86, 86<SP>1</SP> pivoted by pins 87, 87<SP>1</SP> on arms 83, 83<SP>1</SP> respectively. The arms 83, 83<SP>1</SP> are mounted on a shaft 82 to permit pivotal movement of the arms 83, 83<SP>1</SP> against the action of spring 94, 95 on rods 90, 90<SP>1</SP>, the tensions of the springs being adjustable by handwheels 96, 96<SP>1</SP>. The rollers 78 and 79 are made up of halfrollers 101, 102 and 103. 104, having flanges 105 engaging the web B. Each half-roller is driven by a pulley 106 driven through a belt 107 by a variable diameter pulley 114 comprising two flanges pressed together by spring, not shown. Variations in web tension causes rocking of the arms 83, 83<SP>1</SP>, thus tightening or loosening the belts 107 to effect a reduction or increase respectively in the speed of the rollers 78 and 79 to compensate for such variations in web tension. Movements of the arms 83 83<SP>1</SP> are damped by pistons 191, 191<SP>1</SP> engaging cylinders 190, 190<SP>1</SP>.
Patent GB-118739-A (GB)
Title: Improvements in Aerodrome Lighting for the Landing of Aircraft.
IPC: B64F1/20
Filed: 1917-11-09
Abstract: 118,739. Hall, J. I., and Callender's Cable & Construction Co. Nov. 9, 1917. Lamp signals.-To facilitate night landings, an aerodrome is provided with two concentric rings of glazed lights A, B let into the ground, the surfaces of the inner lights being inclined towards the centre of the circle and their upper edges arranged level with the ground, which is raised as shown. Any one of the outer lights is illuminated to indicate the direction of the wind, and the pilot flies over it when about to alight. The inner lights are all illuminated so that the pilot can estimate his height by observing the appearance of the ring, the light most remote becoming invisible when the machine travels along the line MF. All the lights are neutral tinted, but by using coloured lamps in the lights adjacent to the guiding-light in the outer ring the force of the wind may be indicated.
Patent GB-1381513-A (GB)
Title: Process for separating constituents of grain flour and products products produced thereby
IPC: C08B30/04
Filed: 1972-04-10
Abstract: 1381513 Separating constituents of grain-flour TOP-SCOR PRODUCTS Inc 10 April 1972 [29 July 1971] 16492/72 Headings C3H and C3U A process of separating constituents of grain flour by water treatment which comprises preparing a dough with make-up water and flour in the presence of at least one non-ionic surfactant selected from one or more of the following classes (1) compounds of the formula where R is a fatty acid acyl radical having from 12 to 24 carbon atoms, R<SP>1</SP> is H or CH 3 , a has an average value of from 8-40 and b is 1; (ii) compounds of the above general formula wherein R is a polyoxypropylene residue having a molecular weight of at least 900, R<SP>1</SP> is H, a represents the average number of polyoxyethylene residues per chain and b is equal to 2, the molecular weight of said polyoxypropylene residue and the value of a being such that the oxyethylene content represents from 10% to 80% by weight of the molecule, and the ratio of the weight per cent of oxyethylene in the molecule to the molecular weight of the polyoxypropylene residue is less than 0À0316; (iii) polypropylene glycols having a molecular weight of at least 900; (iv) compounds of the above general formula wherein R is the residue of a partial fatty acid ester of a polyhydroxy compound wherein each fatty acid radical contains from 12-24 carbon atoms, R<SP>1</SP> is H or CH 3 , a is the average number of oxyalkylene residues per chain, and b is the average number of said oxyalkylene chains in the molecule, the values of a and b being such that there are on average from 8 to 25 oxyalkylene residues per molecule; the surfactant being present in an amount constituting from 0À25% to 4À0% by weight based on the flour, and adding further water to said dough whereby the starch and protein constituents of said flour are substantially separated into a protein fraction and a starch fraction.
Patent GB-1421404-A (GB)
Title: Polymerization headlamp
IPC: F21S8/10
Filed: 1973-04-06
Abstract: 1421404 Vehicle headlamps ROBERT BOSCH GmbH 6 April 1973 [8 April 1972] 16517/73 Heading F4R A polarized headlamp comprises an interference polarizer 12 and an absorption polarizing filter P4. In a first embodiment a light source 11  is placed at the focus of a parabolic reflector 10 and the light is directed on to an interference polarizer 12 mounted in an echelon prism 13 arranged at 45 degrees to the optical axis. A partial beam of linearly polarized light continues in the direction of the axis, and a second partial beam, polarized in a different linear direction, is directed on to a plane mirror 14 and reflected in the direction of the axis. The second partial beam passes through a filter F4 which turns the polarization direction through 90 degrees, into the direction of the first beam, both beams then passing through an absorption polarizing filter P4 which ensures that only light polarized in one direction is transmitted. Structure P G  represents a windscreen, of an oncoming vehicle, the windscreen not allowing polarized light of the specified direction to pass therethrough. In an alternative embodiment partial beams of light linearly polarized in different directions may be all converted to circularly polarized light by a further filter. In a further embodiment, the interference filter may be in several parts producing beams of light linearly polarized in different directions which may be converted to a circular polarization using further filters.
Patent GB-128325-A (GB)
Title: Improvements in Means for Completing or Promoting the Combustion of Gases in Boiler Furnace Flues.
Inventor: HASSALL WILLIAM
IPC: F23M9/00
Filed: 1917-11-12
Abstract: 128,325. Hassall, W., (trading as Outram & Co., C. W.). Nov. 12, 1917. Baffles.-The flues of Lancashire and like boilers are provided with one or more blocks B of refractory material having a contour corresponding with, but smaller than, that of the flue, and a concave face C directed towards the fire-place. The blocks are preferably built up of sections, as shown in Fig. 2, and provided with feet A<1> and radial stays A<2>. The blocks may vary in size when more than one are used.
Patent GB-688808-A (GB)
Title: Improvements in or relating to hookswitches for telephone substations
Inventor: RODGERS-BANNISTER HORACE VINCE
IPC: H04M1/08
Filed: 1951-07-13
Abstract: 688,808. Sets. MODERN TELEPHONES (GREAT BRITAIN), Ltd. July 13, 1951, No. 16700/51. Drawings to Specification. Class 40 (iv). In a telephone subset the cradle or the like for the handset is joined to a pivoted lever which operates the switching contacts by a resilient portion which may be a leaf-spring or a rubber joint. By the use of differently shaped portions the same subset may be arranged either as a desk set or as a wall set, this latter feature forming the subject matter of Specification 688,809. The leaf-springs to be used in either case are made from similar blanks by bending to the respective shapes required.
Patent GB-699930-A (GB)
Title: Automatic apparatus for delivering oil-petrol or like oil-spirit mixtures in measured and proportioned quantities
Inventor: GIOVANNI AZZOLINI
IPC: B67D7/74
Filed: 1951-07-14
Abstract: 699,930. Mixing appliances. ZANCANGELONI PETROLI SOC. PER AZIONI. July 14, 1951, No. 16752/51. Class 86  Automatic apparatus for delivering oilpetrol or like oil-spirit mixtures :in measured and proportioned quantities, e.g. to the fuel tank of an engine, comprises a receiving chamber :1, Fig,. 5, for mineral oil, a metering chamber 9 and a  mixing chamber 19 connected by manual or foot-operated control valve 7 which when operated moves downwardly from the position shown to allow oil to flow from chamber 1 into the metering chamber 9, and then moves upwardly to allow the metered volume in chamber 9 to flow into the mixing vessel 19. The operating mechanism of the valve 7 includes a lever 51, Fig. 4, pivoted at 50 and having an extension 49 which lifts a piston 40 in the bottom of the mixing vessel 19 as the valve 7 moves downwardly so that petrol can enter the bottom of the vessel 19 through aligned ports 41, 42 respectively in the piston 40 and in a body 35 which forms the base of the chamber 19. The oil and petrol flowing in from opposite ends of the chamber 19 mix together and when the chamber 19 is full the piston 40 is forced downwardly by the supply pressure of the petrol so that ports 43, 44 in the piston 40 and body 35, respectively, come into alignment to allow the petrol-oil. mixture to flow out of the chamber 19. The piston 40 is releasably retained in its upper or. lower positions by a spring toggle mechanism. The oil in the receiving chamber 1 is maintained at a constant level for each operation of the apparatus by a float 2. The capacity of the metering chamber 9 depends upon the position of a vertically adjustable narrow bore tube 10 which provides the only communication between the interior of the chamber 9 and the atmosphere and which is associated with an indicator and scale on an indicator panel. Counting mechanisms are provided, one of which gives an indication of the total number of charges delivered by the machine and the other of which has an indicator which may be reset to zero so that .the number cf charges delivered on any occasion may be indicated. In a modification the reciprocating valve 7 is replaced by rotatable plug valve, Figs. 8 and 9 (not shown).
Patent GB-419759-A (GB)
Title: Combined coat hanger and trouser stretcher
IPC: A47G25/62
Filed: 1933-06-13
Abstract: 419,759. Trouser stretchers and coat hangers. TULECKI, J., Nawojowa, Poland. June 13, 1933, No. 16827. [Class 141.] A trouser stretcher combined with a coat hanger comprises a frame with a shaped coat yoke 3, and with a pair of gripping bars 1, 6, of which the bar 6 is separable and is maintained in position by a pair of hooks 5 mounted on the frame. Pivoted levers 15 maintain the gripping bars in position against the pull of the trousers. A movable bar 10, which may be shaped as shown, serves for stretching the trousers through the action of pivoted levers 13 mounted on the frame and engaging recesses in the bar.
Patent GB-815685-A (GB)
Title: Improvements in and relating to controls
Inventor: BENTLEY JAMES SYDNEY
IPC: B64D13/04
Filed: 1957-05-28
Abstract: 815,685. Aircraft controls. TELEFLEX PRODUCTS Ltd. March 18, 1958 [May 28, 1957], No. 16900/57. Class 4. [Also in Groups XXIV and XXVI] A cable or other control member 8, Fig. 1, is provided where it passes through a pressure cabin bulkhead 6 with a polytetrafluoroethylene sleeve 9 for substantially fluid-tight movement (see Group XXVI) in a polytetrafluoroethylene fairlead 11 mounted in sealed relation on the bulkhead 6. The sleeve 9 may be a tight fit on the cable and, in addition, retained in position by ferrules 11 which may be crimped, swaged or clamped by screws to the cable. The fairlead 11 is provided with an integral base 12 which is held in sealing relation between two, preferably stainless steel, plates 13, 15 secured to the bulkhead. A clearance hole 16, which may be flared, is provided in the plate 15 which is also so shaped as to form an annular space 17 around the periphery of the base 12 thereby permitting relative movement between the fairlead and the bulkhead. In a modification, the base 12 may be formed separately from the rest of the fairlead and provided with a spherical recess in which the correspondinglyshaped end of the remaining portion of the fairlead is resiliently gripped thereby permitting, in addition to the relative movement above, a universal angular movement of the fairlead ; a circlip may be provided to increase the grip. A bank of several controls may be mounted between suitably dimensioned plates 13, 15. In the modification shown in Fig. 5, the fairlead 28 is formed with a spherical bearing portion 29 which is held in a correspondingly-shaped recess 39, 40 provided in a fitting comprising a body 30 and a plug 31. The body is clamped to the bulkhead 34 by a nut 35 and the plug 31 is adjusted so as to allow for the necessary angular movement of the fairlead ; a shim may be fitted between the plug and the body. The Provisional Specification describes also an arrangement in which fairleads of similar construction are mounted in alignment on each side of the bulkhead.
Patent GB-1139907-A (GB)
Title: Vibration dampener assembly
Inventor: STROMBERG CLINTON V
IPC: F16D3/14
Filed: 1966-04-18
Abstract: 1,139,907. Damped resilient couplings. BORG-WARNER CORP. 18 April, 1966, No. 16958/66. Heading F2U. A heavy-duty vibration damper for a clutch plate comprises a pair of rigidly connected driving plates 16, 18 frictionally engaging a driven hub 10 at their inner peripheries, a pair of rigidly connected intermediate plates 30, 31 frictionally engaging a flange 11 of the hub 10 and two sets of cushion springs R, R<SP>1</SP> in apertures, 40, 41, 44, 45, 46, 40<SP>1</SP>, 41<SP>1</SP>, 44<SP>1</SP>, 45<SP>1</SP>, 46<SP>1</SP> in the plates 16, 18, 30, 31 and flange 11. The apertures 40, 41, 44, 45 in the plates 16, 18, 30, 31 are of equal length and register with longer apertures 46 in the flange 11 whilst the apertures 40<SP>1</SP>, 41<SP>1</SP>; 44<SP>1</SP>, 45<SP>1</SP> and 46<SP>1</SP> respectively have increasing lengths so that initial relative rotation between the plates 16, 18 and hub 10 compresses the spring R until the force on the intermediate plates 30, 31 overcomes the friction between the plates 30, 31 and flange 11 whereupon both pairs of plates move together relative to the hub 10 until the springs R engage the ends of the apertures 46 in the flange 11. Thereafter increasing torque compresses the springs R until a predetermined torque is attained whereupon the springs R<SP>1</SP> are also compressed. The plates may be biased into frictional engagement with the hub 10 and flange 11 by interconnecting means 19, 34 or may (Fig. 5, not shown) be biased into frictional engagement by Belleville springs (74, 75). Fig. 8 (not shown) is a torque/deflection characteristic for the coupling.
Patent GB-1445226-A (GB)
Title: Manufacture of silicon tetrachloride
IPC: C01B33/107
Filed: 1974-04-18
Abstract: 1445226 Silicon tetrachloride ELEKROSCHMELZWERK KEMPTEN GmbH 18 April 1974 [19 April 1973] 17032/74 Heading C1A Silicon tetrachloride is manufactured by reacting silicon carbide with hydrogen chloride at 400-1000‹ C. in the presence of cobaltous chloride and/or nickel chloride. The amount of the metallic chlorides used may be 0À1-30% by weight, calculated as anhydrous chloride relative to the total weight of silicon carbide, anhydrous chloride and any carrier material present. The metallic chloride(s) may be admixed in solid form with silicon carbide or may be absorbed on to the silicon carbide from solution. An inert support impregnated with the metallic chloride(s) may be admixed with the silicon carbide. The process may be carried out using a fluidized bed reactor.
Patent GB-212807-A (GB)
Title: Improvements in or relating to the suspension of hose or the attachment of same to suspenders
IPC: A41B11/12
Filed: 1923-07-02
Abstract: 212,807. McWilliams, E. J. July 2, 1923. Stockings.-In order to distribute the strain of suspenders on hose, a continuous thread, braid, cord, strap, or strip of elastic material is attached throughout its length to the material of the hose along curved lines or lines inclined to the top of the hose. As shown in Fig. 1, a length of tubular braid b is stitched or cemented or both stitched and cemented to the hose leaving loops c for attachment of the suspenders. In a modification, a piece of material is sewn to the top of the hose by curved or inclined lines of stitching. In another modification, Fig. 3, the apices of the strengthening element b are below the top of the hose and two loops are provided, one above the other whereby the hose may be shortened. The strengthening element may be incorporated with the material of the hose, as in weaving, or may be arranged on each side of the hose.
Patent GB-756004-A (GB)
Title: Improvements in or relating to the production of anhydrous hydrazine by azeotropic distillation
IPC: C01B21/16
Filed: 1954-06-10
Abstract: In a process for the dehydration of hydrazine by azeotropic distillation using aniline as water-entrainer, a mixture of anhydrous hydrazine and aniline is withdrawn from the azeotrope still and is submitted to fractional distillation whereby anhydrous hydrazine containing a minor proportion of aniline is obtained as distillate; <PICT:0756004/III/1> the anhydrous hydrazine is then subjected to solvent extraction with a hydrocarbon solvent to remove the aniline, and finally, the residual solvent is stripped from the hydrazine. Suitable hydrocarbon solvents are benzene, butane, petroleum ether, and cyclohexane.  A mixture of hydrazine and aniline from the azeotrope still (not shown) is charged through line 11 to still 10 which is heated by reboiler 17.  Aniline containing a small amount of hydrazine is withdrawn from reboiler 17 through line 19, and is recycled to the azeotrope still.  Vapours of anhydrous hydrazine containing a small amount of aniline pass overhead from still 10, and are condensed; a portion of the condensate is returned to still 10 through lines 14 and 15, while the remainder is charged to extraction column 21 through line 20.  The hydrocarbon solvent is introduced through line 23 into the lower part of column 21, so as to flow through it countercurrently to the hydrazine.  The aniline-free hydrazine is withdrawn from the base of the column. The residual hydrocarbon may be removed from the purified hydrazine by heating or, in the case of a very volatile solvent, by mere agitation.  The extract obtained at the top of column 21 is passed to still 26 for separation of hydrocarbon and aniline. The aniline withdrawn from reboiler 33 contains a minor amount of hydrazine, and it is recycled to still 10 via line 35.
Patent GB-594935-A (GB)
Title: Improvements in dish covers
IPC: A47G19/26
Filed: 1945-07-04
Abstract: 594,935. Dish covers. SEIDMAN, J. July 4, 1945, No. 17080. Convention date, July 17, 1944. [Class 128] [Also in Group XVII] A dish cover comprises a hood e.g. of paper, or gauze stiffened by wires 5 fixed to a frame consisting of two strips 1 horizontally or vertically hinged together at 2 and having channels or hooks 3, 4 receiving the edge of the dish, one or both hooks being pivoted vertically. Specifications 23290/14 and 176,234, [both in Class 128], are referred to.