baber/WOPTO huggingface dataset:
Patent GB-856590-A (GB)
Title: Improved staircase construction
Inventor: HEATHCOTE FRANCIS WILLIAM LIST
IPC: E04F11/022
Filed: 1957-04-03
Abstract: 856,590. Staircases. BROCKHOUSE STEEL STRUCTURES Ltd. April 1, 1958 [April 3, 1957], No. 10828/57. Class 20(4) A staircase capable of a slewing movement, for use in buildings which are liable to distortion, has two horizontally spaced points of connection at each end, one of these being a simple pivoted connection 13 .... 18, Fig. 2, permitting movement about a horizontal axis between the staircase and a landing 11, at one end, the other three connections being of a pivoted link from which permits the staircase to move towards and away from the landing. The treads are carried by stringers 12, Fig. 1, connected at the top to a beam 10 in the landing 11. As shown, the simple pivoted connection is at the top and comprises an apertured lug 13 projecting from a stringer and mounted on a bolt 14 supported by two spaced brackets 15 projecting from the beam 10 and passing through a spacer tube 16. The other top connection comprises shackle plates 34 secured by a bolt 35 to an apertured lug 36 projecting from beam 10, plates 34 being connected to the stringer by a pin 37 passing through a lug 38. For connecting the lower end to the ground floor, an attachment cradle 19 is provided for pivoted link connections, having a base plate 23 and vertical webs 25. For connecting the lower end of a staircase to landing 11, a beam 20 having projecting brackets 21, 22 is fitted. Clearance is allowed between the connections to permit spacing of the stringers when treads are fitted. Specification 825,059 is referred to.
Patent GB-147310-A (GB)
Title: A new preserving and waterproofing medium
IPC: D06M23/00
Filed: 1919-05-01
Abstract: A preservative and water-proofing composition for application to paper, textiles, wood, metal, stone, plaster, cement, &c. consists of an emulsion of soap solution, resin and wood or tung oil.  A solution of a colloid such as a solution of casein in caustic soda containing a preservative such as boric acid is added when the composition is to be used as a paint.  Fillers and pigments may be added.
Patent GB-116590-A (GB)
Title: Improvements in or relating to the Recovery by Condensation of Volatilised Solvents.
Inventor: PERSCH PETER
IPC: B29C41/14
Filed: 1917-07-28
Abstract: 116,590. Persch, P. July 28, 1917. Volatile solvents, recovering; treating vapours to facilitate condensation. -In recovering the solvent from a mixture of air or other gas and solvent vapours, the mixture is first heated to the boiling- point of the solvent and is then cooled to condense the solvent. The air may circulate in a closed circuit, passing in succession through the apparatus in which the solvent evaporates, a heater, a fan, and a condenser. A plant for producing seamless rubber goods, of the type comprising moulds on a rotary carrier and a receptacle m which is raised for dipping-purposes and which is fitted with an automatically-removed lid n, is provided with a heating-chamber b which is separated from the dipping-chamber by wire netting &c. p to prevent danger of explosion. The mixture of air and vapour is drawn through the heating-chamber b into conduits q and is discharged by fans d into a cooling-chamber c in which the solvent condenses on cooled surfaces r. The cylindrical wall v may also be furnished with apertures w through which heavy vapours escape over heaters into the cooling-chamber c. The shaft s of the mould-carrier may be arranged as a heater to accelerate the drying of the goods. Nitrogen or other non-oxidizing gas may be used in place of air in order to eliminate the danger of fire. The apparatus may be used for recovering benzine, benzole, spirit, carbon bisulphide, ether, carbon tetrachloride, or other solvent vapours arising from mixers, vulcanizers, rolling-mills, drying-apparatus, &c.
Patent GB-1494873-A (GB)
Title: Silage barrier or silage retaining devices
IPC: E02D29/02
Filed: 1976-03-04
Abstract: 1494873 Silo wall or silage barrier BOYS & BODEN Ltd 4 March 1976 [15 March 1975] 10905/75 Heading E1T [Also in Division Al] A silage barrier or silo wall comprises wall panels 10, having a facing 11, top and bottom rails 12, 13 terminal uprights 14 and intermediate uprights 15, supported by triangular frames 20 comprising a base 21, upright 22 and butress 23 joined together by gussets 24, 25, 26. The frames 20 having extensions 28 or 29 receiving two abutting terminal uprights 14 in abutment with the frame upright. The facing 11 may be plywood as may the gussets which may be formed by a facing over the whole of each side of the frame. Framing members of the frame and wall panels may be butted and nailed. Adjacent frames and panels may be secured together by bolts. Extensions 28, 29 may be from the gusset plates or may be separate metal brackets. A handrail may be provided above the top rail 10 for a workman standing on the bracing beam 32.
Patent GB-288976-A (GB)
Title: Improvements in apparatus for observing narrow tubes
IPC: G02B23/24
Filed: 1928-04-13
Abstract: 288,976. Wolf Ges., G. April 16, 1927, [Convention date]. Inspecting interiors, appliances for.-Apparatus for observing the interior of narrow tubes such as heating tubes, gun barrels, &c., by means of an optical system comprises a forward lens b coaxial with the apparatus a and adapted to view an annular portion of the tube. The part of the tube to be observed is illuminated by a glow lamp d situated at the end of the apparatus, a portion d<1> of the lamp d being silvered to prevent direct entry of light into the optical system. Slight rotation of the apparatus a enables the whole of the interior of the narrow tube e to be examined.
Patent GB-1064356-A (GB)
Title: Tool for crimping electrical connectors to wires
IPC: H01R43/045
Filed: 1965-03-16
Abstract: 1,064,356. Crimping pliers. AMP Inc. March 16, 1965 [March 23, 1964], No. 11002/65. Heading B4W. In a tool for crimping electrical connectors arranged in strip form to wire, the head comprises a C-shaped frame having a web 20, an upper arm 24 on which is mounted an L-shaped die holder 30 carrying a fixed crimping die 38, and a lower arm 22 in which is secured a rod 26 having an axial bore in which is slidably mounted a ram 46 the projecting end of the ram carrying a crosshead 48 comprising an L-shaped block 50 having a crosshead frame plate 74 which carries a die 82. Handles 56 are pivoted to ears 52 which project from the block 50 on each side of the ram, each handle being pivotally connected intermediate its length to the end of the rod 26 by toggle links 60. The strip 2 of connectors is fed over surfaces 83, (85) of the crosshead 74 by a feed slide 84 reciprocable towards and away from the dies by a spring member 104 which extends through a guide (108), Fig. 3 (not shown), on the left-hand toggle pivot 62 and has one end secured to the slide and the other end 110 fixed to the common pivot 64 of the toggle links. The slide 84 has a slot in which is pivotally mounted a feed pawl (114) which is spring urged in a clockwise direction. On the opposite side of the dies 38, 82 is an indexing pawl (128) which is pivotally mounted in a slot in a housing (122) of the crosshead, the indexing pawl (128) being spring urged in a clockwise direction. A cover plate 144 is pivotally mounted on the crosshead plate 74 and has a flange having slots through which the pawls (114) and (128) protrude. A sector plate 178 is secured to a screw (188) extending through the pivot pin (58) on the left-hand handle. A pin (182) in the plate 178 normally engages in a slot (184) in the cover plate 144 to retain the cover plate in closed position. The cover plate 144 is raised to permit a strip of connectors to be laid on the surfaces 83, (85). To raise the cover plate 144, pressure is applied to the head of the screw (188) whereby the sector plate 186 is swung to the right and the pin (182) is moved beyond a cam surface 176 on the plate 144. The handles 56 are pressed together to move the crosshead 48 upwardly, the upper end of the spring 104 thus being forced to move inwardly to move the slide 84 to the right thus causing the feed pawl (114) to be depressed by engagement with the carrier strip 4, the pawl subsequently rising to engage in the next adjacent slot (12) in the strip. The upward movement of the crosshead causes the dies to close about the ferrule portion (18) of the connector in which the wire has been placed, the leg (162) of the depressor 36 on the upper arm 24 of the head engaging a corresponding projection of the shear plate 160, to shear out the metal slug (5) between the ferrule forming portions (18).
Patent GB-741930-A (GB)
Title: Improvements in fittings for tubular light units and the like
Inventor: BUNGAY JEFFERY ARTHUR
IPC: F21V19/00
Filed: 1952-05-01
Abstract: 741,930. Photographic contact printing apparatus. HALL HARDING, Ltd. April 22, 1953 [May 1, 1952; April 14, 1953], Nos. 11015/52 and 10186/53. Class 98 (2). [Also in Group XI] In a photographic contact printing apparatus wherein tubular lamps 40 are housed in a rotatable transparent or translucent cylinder 6 journalled in end supports 4, the lamps are mounted in a cluster on a plurality of supports slidable on a guide carried by one or both end supports so that they can be moved bodily with the supports through the end of the cylinder 6 for servicing. As shown, the cylinder 6, which may be glass or plastic, is fixed to one end of a roller blind 10, and the tubular lamps 40 are supported at their ends by plates 34, 38 fixed to a tube 32 which is slidable over a rod 30 carried by a cross strap screwed to one end support 4. The plate 34 is apertured to receive the adjacent end caps of the lamps and the plate 38 is peripherally notched and provided with detachable coil springs 44 to loop over and retain the opposite end caps. The end of the tube 32 adjacent the plate 38 has an extension 46 carrying a stand member 48 which, with the plate 34, provides for standing of the lamp assembly when retracted from the cylinder 6. In an alternative arrangement, Fig. 3, to prevent undue temperature rise inside the cylinder 6, a longitudinal gap 60 is provided in the cylinder wall and a baffle 62 rotatable with the cylinder extends radially inwardly, centrally of the gap to co-operate with a radial baffle 70, fixed to a guide rail 66 carried by end support gratings 4, to produce an air flow as indicated by the arrows. In this case the lamp support assembly has a longitudinal angle member 64 to co-operate with the guide rail 66, the rod guide 30 being dispensed with and the tube 32 being perforated to enhance the cooling effect and also, when earthed, to assist starting of tubular discharge lamps.
Patent GB-944684-A (GB)
Title: Organosiloxyalkyl ethers of polyhydric alcohols
IPC: C08G77/00
Filed: 1962-03-22
Abstract: Organosilicon compounds of the general formula: <FORM:0944684/C3/1> wherein R is an alkyl radical of 1 to 4 C atoms, each R1 and R11 are H atoms or alkyl radicals of 1 to 4 C atoms, n is 3 or 4, x is an integer greater than 3 and y is an integer greater than 2, may be made by heating to between 50 DEG  and 300 DEG C. a polyalkylene glycol monoalkyl ether of the formula R-(-O.CH2.CHR1)x-OH, a dialkoxy dimethylpolysiloxane of the formula: R111O-(-Si(CH3)2-O-)y-R111, wherein R111 is a lower alkyl radical, and a polyol of one of the formulae: <FORM:0944684/C3/2> <FORM:0944684/C3/3> wherein z is zero or an integer, in the presence of an acid catalyst in amount of at least 0.05% by weight of the reactants, driving off the alcohol R111OH formed during the reaction, and recovering the reaction product after neutralising the catalyst.  The process can be effected in one step, or advantageously in two steps by first reacting the siloxane with the alkoxylated polyol or the glycol ether, in the presence of a catalyst (preferably a fluorinated fatty acid), then further transesterifying the product by refluxing with the glycol ether or the polyol (respectively) in the presence of an acid catalyst. In a typical example (1), a mixture of toluene, 1,2-bis-(b -hydroxypropoxy)-ethane, a , o -diethoxy-dime-thylpolysiloxane, mono-n-butyl ether of polypropylene glycol and trifluoroacetic acid, was refluxed until homogeneous, whilst the ethanol formed and some toluene were distilled off; the mixture was then neutralised with b -hydroxyethylamine, freed of solvent and filtered to yield an oily product of 1, 2-bis-[b -(n-butoxy-poly-propoxy-dimethylpolysiloxy)-propoxy] ethane.  The compounds, similar to those of the parent Specification, are hydrophilic and of use in cosmetic preparations and as emulsifying agents.
Patent GB-1041098-A (GB)
Title: Improved multistage pneumatic drying apparatus
Inventor: SUGAHARA YUJIRO
IPC: F26B17/10
Filed: 1964-03-16
Abstract: 1,041,098. Pneumatic drying apparatus. MIZUSAWA KAGAKU KOSYO KABUSHIKI KAISHA. March 16, 1964, No. 11028/64. Heading F4G. In a multi-stage pneumatic drying apparatus, each stage comprises a drying duct 4, 9, 13, a conduit 2, 7, 12 for feeding granules thereinto, a duct leading hot air from a furnace 1 for drying the granules whilst carrying them through each stage and a cyclone separator 5, 10, 14 at the end of each duct. Separators 10, 14 each have a conduit leading air therefrom back to the preceding drying duct 9, 14 and air from separator 5 is led to exhaust. The granules discharged from each separator 5, 10 are led through valves 6, 11 to the ducts 9, 13 respectively. A crushing machine 8 is mounted in the conduit 7 between the separator 5 and duct 9 and a swirl generating rotor 3 is mounted in the duct 4 upstream of the inlet 2 for wet granules. Similar swirl generating rotors 3 may be mounted in each drying duct.
Patent GB-592458-A (GB)
Title: Variable pitch aircraft propeller
IPC: B64C11/34
Filed: 1945-05-01
Abstract: 592,458. Variable - pitch propellers. ENGINEERING & RESEARCH CORPORATION. May 1, 1945, No. 11042. Convention date, June 1, 1944. [Class 114] In a constant-speed, variable-pitch propellermechanism for aircraft in which propeller blades 16 are journalled in a hub 4 and rotated by axial movement, of a cylinder 20, the cylinder being actuated by pressure fluid under control of a valve 56 adjusted by the opposing forces of a spring 110 and a centrifugal governor 102, the force exerted by one member, e.g. the spring 110, is varied when the speed of the propeller attains a predetermined figure and the speed maintained thereafter at a different predetermined figure. Fig.. 1 shows the idling position with the cylinder 20 at its extreme right-hand position, the blades 16 set for minimum pitch and the valve 56 held at its extreme left position by the spring 110. A stationary piston 22 divides the cylinder 20 into two compartments. Lubricating oil &c. from a pressure chamber 28 in the crank-shaft 2, to which the hub 4 is secured, communicates through a passage 80, a port 82 in the piston 22, an annular space surrounding a reduced part of the valve 56 and a port 86 with the righthand chamber of the cylinder 20 to maintain the minimum pitch. On acceleration, the governor 102 displaces the valve 56 to the right and a land 64 thereon blocks the port 82. Further acceleration moves the land past the port permitting pressure fluid to enter the lefthand compartment of the cylinder 20 and displace the cylinder to the left, increasing the blade pitch. The resulting decrease in speed permits the spring 110 to move the land 64 to close the port 82. At its end remote from the governor 102, the spring 110 abuts against a flanged sleeve 156, Fig. 3, slidable on a second flanged sleeve 152 which is screwed on a tube 24 itself mounted in the hub 4 coaxially with the crank-shaft 2. At low speeds, the sleeves are held apart by balls 160 retained between a V-shaped groove formed by bevelling the edges of the flanges and a cylindrical member 120 secured to the cylinder 20. With increasing speed, the balls 160 move inwards along the inside of the member 120 and at a predetermined speed enter a groove in the member which partially frees them from the V-shaped groove permitting the spring to slide the first sleeve 156 into contact with the screwed sleeve 152 to increase the effective length of the spring, reduce the force with which it opposes the governor 102 and adjust the mechanism for a higher running speed. Successively deeper grooves may provide additional selected'speeds. To avoid excessive pitch change in any selected range, movement of the cylinder 20 is limited by stops 127, 124 on a sleeve 122, which are engaged by a flange 126 on the cylindrical member 120.
Patent GB-590646-A (GB)
Title: Improvements in or relating to garden shears
IPC: A01G3/02
Filed: 1944-06-09
Abstract: 590,646. Shears. BLACKWOOD, A. R., and RAWLPLUG CO., Ltd. June 9, 1944, No. 11046. [Class 30] pruning shears are provided with an abutment blade 3 integral with or rigidly secured to one handle member 1, and a cutting blade 8 pivoted to the other handle member 2, the blade 8 having a guide slot 9 co-operating with a guide pin 10 fixed to the handle member 1. The ends 12 of the handle 2 are curved to engage twigs &c. to be sheared. A spring 13 for opening the shears has a hooked portion 15 which may be engaged by a bail 16 to hold the shears closed.
Patent GB-707500-A (GB)
Title: Improvements in or relating to electrostatic precipitator collecting electrodes
Inventor: RAPER RICHARD
IPC: B03C3/47
Filed: 1952-05-02
Abstract: 707,500. Electrostatic filters. WHEELING STEEL CORPORATION. May 2, 1952, No. 11137/52. Class 39(1) A collecting electrode for an electrostatic precipitator consists of two sheets 3, 4 of foraminated metal spaced apart by elongated channels 5, 6 projecting from at least one of the sheets and secured together to form a unit. Opposing channels 5, 6 may contact each other sideways or face to face.
Patent GB-715229-A (GB)
Title: Improvements relating to the refining of lead and lead alloys
Inventor: HOFFMANN MARKUS
IPC: C22B13/06
Filed: 1952-05-02
Abstract: Any desired number of impurities viz.:-As, Sn, Zn, Se, Te, Mn, Cu, Fe, Co, Cd, Ni and Sb are removed-in order-from molten lead or lead alloys by reaction in the presence of a molten caustic alkali, e.g. caustic soda, with an appropriately limited amount of lead sulphide or with an excess of lead sulphide and stoppage of the process at the required stage.  Sufficient lead sulphide and caustic alkali to remove all the undesired impurities may be added in a single stage or successive charges of lead sulphide and caustic alkali may be added to remove each impurity in turn.  The impurities may be removed as insoluble suspensions (sulphides) or dissolved thio-salts from the caustic alkali.ALSO:Any desired number of impurities viz:-As, Sn, Zn, Se, Te, Mn, Cu, Fe, Co, Cd, Ni and Sb are removed-in order-from molten lead or lead alloys by reaction, in the presence of a molten caustic alkali, e.g. caustic soda, with an appropriately limited amount of lead sulphide or with an excess of lead sulphide and stoppage of the process at the required stage.  The lead sulphide may be powdered or granulated dressed galena and the process is preferably carried out at a temperature of 300-350 DEG C.  The lead, caustic alkali and lead sulphide are intimately mixed by placing the lead sulphide on the surface of the caustic alkali floating on the molten lead or lead alloy and stirring the whole or by circulating the lead continuously or intermittently through the lead sulphide and caustic alkali.  Sufficient lead sulphide to remove all the undesired impurities may be added in a single stage or successive changes of lead sulphide and caustic alkali may be added to remove each impurity in turn.
Patent GB-1488615-A (GB)
Title: Vapour generating tubes
IPC: F16L58/00
Filed: 1975-03-18
Abstract: 1488615 Heat exchanger tubes; boilers BABCOCK & WILCOX CO 18 March 1975 [18 March 1974] 11195/75 Headings F4S and F4A In a vapour generating and superheating unit 10 having burners, superheating means, and a gas pass 12, 14, 16 through which gases flow from the burners to the superheating means, vapour generating tubes 23 in the gas pass, in particular tubes which form a division wall 21, are lined internally with a non-ferrous metal such as nickel or chromium. The tubes 23 are preferably made of Croloy (a chrome-molybdenum steel). In the vapour generator shown, gases from burners 36 pass upwardly through an upright gas pass section 12 defined by walls 15, 17, 19 and containing division walls 21, to a horizontal pass section 14 in which they flow in series over a secondary superheater 38 and a reheater 40, the gases finally entering a downflow pass section 16 containing the primary superheater 42. The headers, e.g. 44...56 for the vapour generating, reheating and superheating tubes are housed in an upper chamber 18 having a roof 22. Rods 24 support the vapour generator from cross beams 26.
Patent GB-738332-A (GB)
Title: Improvements relating to screening cans for electron discharge tubes
Inventor: DEAKIN STANLEY THOMAS
IPC: H01J5/12
Filed: 1953-04-23
Abstract: 738,332. Radio receiving apparatus. EDISON SWAN ELECTRIC CO., Ltd. April 15, 1954 [April 23, 1953], No. 11257/53. Class 40 (5). A valve screening can comprises a single piece sheet metal tube having an undulating surface, e.g. helical ribbing 1 to provide mechanical strength and heat dissipation, outwardly pressed bayonet joints 2 at the lower end to engage pins protruding from a valve holder, an external flange 5 at the base end and an internal flange 6 at the further end.
Patent GB-591757-A (GB)
Title: Improvements in or relating to record changing gramophones
IPC: G11B17/16
Filed: 1945-05-15
Abstract: 591,757. Magazine gramophones. INDUSTRIAKTIEBOLAGET LUXOR, and WENNERBO, E. May 15, 1945, No. 11314/46. Divided out of 591,746, under which a Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 23, 1945. Drawings to Specification. [Class 40 (ii)] The description is identical with that in Specification 591,746. The claims, however, relate to the size and shape of the arm 7 which is sickle-shaped with a curvature similar to the outside edge of the record, and has a recess 15 to embrace the central post 3.
Patent GB-309555-A (GB)
Title: Improvements in and relating to sound producing devices
IPC: E21F15/06
Filed: 1929-04-12
Abstract: 309,555. British Thomson-Houston Co., Ltd., (Assignees of Potter, W. B.). April 12, 1928, [Convention date]. Draphragms. - A conical paper diaphragm 10 for sound reproduction has flanged rings 15 of " Bristol board " or the like attached to its cuter surface, the flanges 16 oi which lie in planes perpendicular to the axis of the cone. The rings are preferably spaced progressively closer towards the periphery. The flange 13, of the peripheral ring 14, is used to support the cone which is inpulsed by a rod 12 attached to a metal ferrule 11, preferably of aluminium, and fixed to the apex of the cone.
Patent GB-140636-A (GB)
Title: Improvements in or relating to the construction of floors, walls and the like
IPC: E04B5/19
Filed: 1919-05-07
Abstract: 140,636. Dyson, H. K. May 7, 1919. Reinforced brickwork floors; joist floors with block filling; reinforced block-work walls.-Floors and walls are formed of hollow blocks with side ribs a and grooves b and placed either in contact to form closed channels between the blocks to receive reinforcements and cement filling, Figs. 10 and 11; or spaced apart to receive soffit tiles e and reinforced cement forming beams between the blocks, Fig. 13. The apertures in abutting ends of the blocks are closed by plugs c, Fig. 6, and those of blocks spaced apart for transverse beams are also closed by plugs. Filling-inlets h, Fig. 11, are provided for floors with closed channels. Concrete may be laid over all the blocks, and deeper blocks may be placed at intervals in the floors. The soffit tiles e are squirted and baked in pairs, Fig. 7. Fig. 17 shows a device for lowering the last block and soffit tiles when they cannot be slid into position. The tiles and plugs may be made of terro-cotta or concrete.