baber/WOPTO huggingface dataset:
Patent GB-1089806-A (GB)
Title: Bridge or elevated roadway which can be dismantled
IPC: E01D15/133
Filed: 1966-04-07
Abstract: 1,089,806. Temporary bridges. BETEILIGUNGS-UND PATENTVERWALTUNGS G.m.b.H. April 7, 1966 [April 10, 1965], No. 15631/66. Heading E1G. In a temporary bridge or overhead roadway comprising two main girders 7 and transverse carriageway plating, in which the lower chords of the girders are coupled either directly or through an intermediate member 31 by knockout pins 17 and the upper chords are adjustably longitudinally secured, the main girders are supported outside the area of the joints and the bridge has a plurality of joints. The upper chord adjustment, to allow gradient change in road level, comprises wedge distance pieces 30 held by bolts 20 seating on spherical washers. Road curvature is provided by intermediate members 31 of different lengths on the two sides of the bridge and tapered carriageway plates.
Patent GB-199400-A (GB)
Title: Process for the manufacture of the cardiac glucoside of bulbus scillae
IPC: C07G3/00
Filed: 1923-06-15
Abstract: The glucoside of squill (Bulbus Scillae) is isolated from dried extracts, obtained in known way by exhaustive extraction with organic solvents of small water content, by dissolving the extract in water and first precipitating the subsidiary substances with tannin-precipitating agents such as sugar of lead, lead acetate, zinc acetate or aluminium hydroxide.  After filtering and eliminating the excess of precipitating agent, say by addition of disodium phosphate solution, the solution is concentrate in p  vacuo in the presence of common salt and then extracted with an organic solvent not miscible with water, such as chloroform or acetic ester, preferably containing up to ten per cent of methyl or ethyl alcohol.  Finally the filtrate is treated one or more times with water and the aqueous solution evaporated to dryness in vacuo.  The dried extract may be taken up in the first instance with an organic solvent containing water, such as 40 per cent alcohol, instead of with water.  In a modification of the process, the crude extract of squill in an organic solvent of small water content is treated with a methyl alcohol solution of ether, concentrated in vacuo and the residue taken up with an aqueous solvent, a tannin-precipitating agent added, the excess of the agent removed, and the filtrate concentrated in vacuo when most of the glucoside separates cut; the remainder is obtained from the filtrate by treatment with an organic solvent, followed by the addition of water.  The Specification contains examples of the processes and describes the properties of the product.
Patent GB-1034083-A (GB)
Title: Improvements in or relating to components for building up toy miniature roads
IPC: A63H33/08
Filed: 1965-04-13
Abstract: 1, 034, 083. Building elements. H. HENNEQUIN. April 13, 1965 [April 17, 1964], No. 15661/65. Heading A6S. A toy building component, generally rectangular, comprises an integral number of identical portions including a recess and a projecting portion joined by an intermediate level, the width of the component comprising one such identical portion and the length four such portions. The recessed portions may be provided with ridged tongues 11 for interlocking with ridged thicknesses of the projecting portions 7.
Patent GB-275178-A (GB)
Title: Improvements in the distillation of solid bituminous materials
IPC: C10B7/02
Filed: 1927-06-13
Abstract: 275,178. Piron, E. July 27, 1926, [Convention date]. Coking processes.-Coal or lignite is comminuted to particles not larger than a quarter of an inch across and heated in a layer between one-quarter and three-quarters of an inch in thickness on a, stationary hot surface, the temperature of which is between 1100‹ and 1350‹ F. The volatiles are given off in from three to six minutes, and are subjected only to temperatures between 800‹ and 1000‹ F. It is stated that 25 to 35 gallons of tar per ton of coal are obtained.
Patent GB-562956-A (GB)
Title: Improvements in plasticised polyvinyl ester compositions
IPC: C08L27/06
Filed: 1942-11-07
Abstract: Plasticised polyvinyl chloride or vinyl chloride-vinyl acetate copolymer has up to three-quarters by weight of the usual plasticiser replaced by one or more members of a class of distillation products of coal or petroleum.  The distillation products consist of coal tar, coal tar pitches and the petroleum products known as "High Boiling Aromatic Distillates" (or Hibads), especially "Iranolin" (Registered Trade Mark) and "Naftolen."  The high boiling distillates are prepared by treating high molar weight mineral oil fractions with selective solvents, e.g. sulphur dioxide, benzene, furfural, phenols, nitro-benzene, dichlordiethyl ether or mixtures of solvents including at least one excited.  "Naftolens" are derived from acid tars resulting from the acid treatment of lubricating oils. The "usual plasticisers" listed are dibutyl, dihexyl and dioctyl phthalates, tricresyl phosphate, dibutyl sebacate and butyl acetyl recinoleate. The composition may also include stabilizers, e.g. lead stearate, carbonate or silicate, and lubricators, e.g. ethyl palmitate and paraffin wax.
Patent GB-200664-A (GB)
Title: Improvements in or relating to surveying instruments
IPC: G01C3/12
Filed: 1922-06-06
Abstract: 200,664. Hadsel, A. D., and Woods, F. N. June 6, 1922. Tacheometers; anglemeasuring instruments. -In an instrument for plotting on a plane table the relative positions of stadia rods an eyepiece 1 is pivoted by horizontal trunnions 1<a> between the arms 4a, 4<b>, Fig. 7, of an upright member 4 rotatable about a central vertical axis, a second upright member 40, Fig. 5, is adjustably spaced from the member 4 and is rotatable about the same vertical axis, and two horizontal hair lines 3, disposed in a vertical plane at a fixed distance apart, are adjustable vertically on the second upright member. A vertical hair line is brought into register with the stadia rod under observation, and the spacing of the upright members and the height of the horizontal hair lines are adjusted until these lines subtend a fixed distance on the rod, whereupon a point is marked on a plane table B vertically below the vertical hair line to denote the position of the rod on the plan. The eyepiece 1 is carried by a telescoping tube 26 pivoted at 26a to a carrier 3a for the hair lines. The arms 4a, 4b are fixed to horizontal guide members 6, 5 respectively upon which are slidably mounted sleeves 12, 11 fixed to the spaced arme 14, 13 respectively of the member 40. Racks 22 carried by the members 5, 6 are engaged by pinions 23 on a cross-shaft carried by the sleeves 11, 12, and this shaft is actuated to adjust the spacing of the members 4, 40. The carrier 3a is similarly adjusted on the arms 13, 14 by the engagement of pinions 18 with racks 17. The arms 4a, 4b of the upright member 4 are secured to a plate 8 pivoted centrally to a plate 9 fixed to the table B, and a screw 8<a> is provided to clamp the plate 8 in position. The sleeves 11, 12 are braced by a cross-piece 11<1> and carry feet or skids 15, 16 braced by a cross-piece 15<1>, and the cross-piece 11<1> is provided with a hole 27, Fig. 6, located vertically below the vertical hair line for defining the position to be plotted on the table B. The arms 13, 14 are graduated to indicate, the elevations of the stadia rods.
Patent GB-597028-A (GB)
Title: Improved method for converting hydrous magnesium silicates into basic products
IPC: C01F5/06
Filed: 1943-09-27
Abstract: Available magnesia is produced by calcining comminuted unstable hydrous magnesium silicates of the serpentine group in the presence of steam supplementary to that released by the silicate until the residual water of combustion is 0.6 to 8 per cent. and preferably 1.5-4 per cent. represented as loss on ignition.  The particle surface area is preferably at last 250 cms2 per gram and the calcination temperature preferably 900-1500 DEG F. Superheated steam and agitation may be used during calcination. Steam may be provided by water introduced into the furnace. Serpentine, genthite or garnierite may be used.  The calcine may be used in plasters, cements, insecticides. dust laying sprays, or floor and roofing materials.  Magnesia may be extracted as benzoate, bicarbonate or as chloride using ammonium or ferric chlorides.
Patent GB-1496999-A (GB)
Title: Article for increasing the life expectancy of filament light bulbs
IPC: H01R33/945
Filed: 1976-04-20
Abstract: 1496999 Supplying light bulbs; electrical couplings A H BEINING 20 April 1976 [16-April 1975] 15800/76 Headings H2H and H2E A device 10 for reducing the power supplied to a light bulb 31 is positionable in a socket 26 for the bulb and comprises an insulating wafer 11 on which a diode 15 is mounted, the leads 16, 17 of the diode forming terminals 18, 19 and insulating pads 20, 21 provided with holes 22, 23 which expose the terminals. The pads are adhesively secured together and are made of woven glass cloth. A terminal 27 in the socket engages the terminal 19 and a terminal 32 of the bulb engages the terminal 18 so that the diode is connected in series with the bulb when the bulb is screwed into the socket. The diode reduces the power supplied to the bulb to increase the life of the bulb. The polarity of the diode may be marked on the device 10 and in a circuit including several bulbs, the polarities of successive devices 10 are alternated.
Patent GB-530367-A (GB)
Title: Improvements in high vacuum unobstructed path distillation
IPC: B01D3/12
Filed: 1939-03-09
Abstract: 530,367. High-vacuum distillation. DISTILLATIONS PRODUCTS, Inc. March 9, 1939, No. 15906/40. Convention date, March 9, 1938. Divided out of 530,371. [Class 32] . A high-vacuum, unobstructed-path still consists of a centrifugal apparatus in which a condensing surface, separated by a substantially unobstructed space from a distilling surface, contains perforations so arranged that residual gas molecules pass there-through more readily than distillate molecules. As shown in Fig. 1, distillant is supplied through pipe 134 to the centre of the horizontal rotary plate 116 beneath which is a heater 128 and distillate is condensed on a rotary plate 118 formed of overlapping concentric rings 118a, 118b, 118c. Residual liquid and distillate are collected in troughs 120, 122 and removed through conduits 124, 126. In a modification, a vertical, rotary distilling plate co-operates with a vertical, stationary condensing surface formed of overlapping plates.
Patent GB-1452377-A (GB)
Title: Distillation
IPC: B01D3/14
Filed: 1974-04-10
Abstract: 1452377 Fractional distillation with vapour compression BRITISH PETROLEUM CO Ltd 27 Feb 1975 [10 April 1974] 15913/74 Heading B1B [Also in Division C5] Fractional distillation is carried out by withdrawing an overhead vapour fraction from a column, compressing said fraction with increase in temperature whilst maintaining it in the vapour phase, exchanging the latent heat of condensation of the pressurised fraction with a distillation column stream, driving the compressor with a turbine using a vapour e.g. steam as motive fluid, exchanging the latent heat of condensation of the motive fluid exhaust vapour with a distillation column stream and recovering one or more streams as product from the distillation column. The separation of isoparaffins from naphtha is described.
Patent GB-258359-A (GB)
Title: Improvements in caps and other peaked headgear
IPC: A61F9/04
Filed: 1926-03-22
Abstract: 258,359. Lawton, J. March 22, 1926. Eye-shades.-The stiffener of the peak of a cap or eyeshade has a flange along its inner edge divided by slits so that the flange is pliable. Preferably, the flange is integral with the stiffener, which may be of fibre, cardboard or celluloid. The slits 5 terminate in circular enlargements 6. Additional perforations may be provided to assist ventilation and facilitate the stitching of the stiffener in position. The flange may be thinner than the remainder of the stiffener, and may be lined with felt.
Patent GB-744080-A (GB)
Title: Improvements in or relating to a process for the utilization of acetylene and ethylene mixtures
IPC: C07C7/148
Filed: 1953-06-10
Abstract: A mixture of acetylene and ethylene is reacted with chlorine in a liquid phase chlorhydrocarbon solvent, ethylene dichloride recovered from the products, and a residual gas stream enriched in acetylene recovered.  The initial mixture may be obtained by cracking saturated hydrocarbons, e.g. natural gas, gasoline or naphtha, preferably an ethane fraction, at 1100-1600 DEG  C. in tubular, regenerative or pebble furnaces, if desired with addition of steam or other inert gas, and separating a fraction containing acetylene and ethylene, preferably in equimolar proportions. The chlorination may be effected in carbon tetrachloride, tetrachlorethane, ethylene dichloride, chlorbenzene or trichlorbenzene at from room temperature up to about 125 DEG  C., chlorination catalysts such as iron or its alloys or chlorides, antimony, zinc and aluminium chlorides, and iodine being present if desired.  Ethylene is preferentially chlorinated and a small excess of chlorine over that required to form ethylene dichloride is preferred.  A multistage process may be used giving substantially pure acetylene as residue.  This may be reacted in a second stage, for example with hydrogen chloride as in Specification 744,079 to give vinyl chloride; with acetic acid to yield vinyl acetate as in Specifications 744,077 and 744,079; with hydrochloric acid as in Specification 744,081 to yield dichlorethylene; with hydrogen cyanide to yield acrylonitrile as in Specification 744,079; with an aldehyde or ketone as in the same Specification to yield alcohols after absorption of the acetylene in a suspension of potassium hydroxide as in Specification 744,082; with aqueous formaldehyde yielding butynediol-1,4, with alcohols containing sodium alcoholate to give vinyl ethers, or with benzene over an alkylation catalyst to form styrene, all as in Specification 744,079.  By controlling the extent of conversion in this stage, a tail gas suitable for recycle with fresh feed to the first stage, as in that Specification 744,079, is obtained.  In examples, the initial chlorination is effected in tetrachlorethane or ethylene dichloride with ferric or zinc chloride catalyst, residual acetylenic gas then being converted with hydrogen chloride over active carbon + barium chloride + trace of mercuric chloride to vinyl chloride; with hydrochloric acid to dichlorethylene; or with acetic acid to vinyl acetate.
Patent GB-743870-A (GB)
Title: Improvements in or relating to the feeding of plastic material to mechanical wrapping mechanism
Inventor: PEBERDY REGINALD KENNETH
IPC: A01J21/02
Filed: 1953-06-11
Abstract: 743,870. Moulding and packing margarine &c. BIBBY & SONS, Ltd., J. June 11, 1954 [June 11, 1953], No. 16077/53. Class 87 (2). In feeding plastic material such as cooking fat to a mechanical wrapping device, the material in a liquid state is fed into a duct in which it solidifies and from which the solid material is extruded into moulds in a rotating wheel, by means of a fluid-operated piston in a cylinder connected to the entry end of the duct. As shown, super-cooled liquid cooking fat, e.g. at 170‹ C. is fed from unit 10 through pipes 11, 13 and valves 12, 14 to the tapering part 15 of the cylinder 16. Valve 12 is' a relief valve, air pressure on piston 42 holding plunger 40 so that it closes waste pipe 39 unless the pressure in pipe 11 exceeds a predetermined level. Valve 14 acts as atomizer for the liquid fat, the pressure of the liquid fat raising plunger 45, against the adjustable compression of spring 46, to leave a small annular orifice through. which it passes to the part 15 of the cylinder 16 from which it is fed along duct 18 by air pressure on piston 17 in cylinder 16 so that the solidified fat fills moulds 31 on a wheel 32 co-operating with a wrapping device 34. In the event of pressure building up in cylinder 16 the piston 17 is forced back and uncovers part 27 through which the oil passes to waste pipe 28. The duct 18 may be electrically heated. Specification 672,742 is referred to.
Patent GB-566976-A (GB)
Title: Improvements in or relating to cover means for vegetables and other plants
IPC: A01G13/04
Filed: 1942-11-18
Abstract: 566,976. Horticultural frames. STEVENSON, J. F. Nov. 18, 1942, Nos. 16286/42 and 8199/43. [Class 20 (i)] Portable cover means for plants comprise a plurality of light frames separably jointed edge to edge to form two or multiple - sided covers which are self-supporting. The cover means may comprise side members 2, Fig. 1, coupled by longitudinals 1 and sides 7 provided at their ends with legs 8 to engage the ground. The frames may be assembled end to end and are retained against collapse by the interengagement of extensions 9 on the members 2 at one side of the ridge with inclined faces on the mating members 2 on the other side of the ridge. The extensions 9 of the side members 2 may be part only of the width of the side members, the inclined surfaces being formed on the side members adjacent the base of the extension to form a bearing surface for the extension 9 of the mating side members. Interengaging frames may be similarly coupled at both ends to form a multiple-sided cover. The frames may be formed with two or more panels separated by members such as 2, Fig. 1, and such frames may be connected by providing extensions at opposite ends of alternate members 2, with inclined bearing surfaces at the other ends of these members. The side members may have central projections at one end and central slots with inclined bearing surfaces at the other, so that pairs of side members may interengage and mutually support each other at an angle. In a further form of the invention, glass panels may be provided with metal edge clips which interengage by a tongue on one clip passing through a slot in a mating clip, inclined bearing surfaces in the slot walls and at the side of the tongue being similarly provided. The slot may be open-ended. A glasshouse may be formed by interconnecting four or more frames, Fig. 21, in the manner described, and supporting the lower ends of the side frames on bricks 57 provided with central ridges 58. The end frames 59 are tied by longitudinal stay-bars 62 having screwed ends with nuts 63. The covering means may be glass, opaque material, e.g. asbestos or plastic for forcing, or netting where the protection to be afforded is solely against birds.
Patent GB-612686-A (GB)
Title: Improvements in or relating to rotary wing aircraft
IPC: B64C27/39
Filed: 1946-05-30
Abstract: 612,686. Rotary-wing aircraft. BRISTOL AEROPLANE CO., Ltd., and HAFNER, R. May 30, 1946, No. 16483. [Class 4] A sustaining rotor comprises two or more flapping blades and a stop member common to at least a pair of blades to limit their downward movement, and is characterised in that on its engagement by other than all the blades to which it is common it is displaced to allow the blades to move downwardly, and upon engagement by all the blades it is not so displaced and limits the downward movement of the blades. In the form shown, in which the blades 12 are mounted on drag and flapping bearings 15, 14, the stop member comprises a ring 17 connected to a conical flange 16 on the rotor hub by resilient means, such as a rubber ring 1'8 bonded to both members. Each blade carries a lug 19 on its under side, and if any lug contacts the ring 17 in flight, the latter is displaced and does not prevent downward flapping movement of the associated blade. Simultaneous contact by all the lugs; however, does not cause'displacement of the member 17, and the blades are held clear of the fuselage. Stops 20, 21 are also provided to limit upward flapping movement of the blades.
Patent GB-976987-A (GB)
Title: Holding means for sausage machines
IPC: A22C11/02
Filed: 1961-05-05
Abstract: 976,987. Sausage making. A. HANDTMANN, [trading as ALBERT HANDTMANN [firm of] ]. May 5, 1961 [May 5, 1960; April 8, 1961,] No. 16483/61. Addition to 877,349. Heading A2B. The sausage machine described in the parent Specification is modified by having a holding device 22 on the exit end of the nozzle 5 for gripping the sausage skin 6 on the nozzle 5, comprising elastic rings 35 (Fig. 3) which press radially inwardly on to the skin with a pressure determined by the tightness with which ring 37 is screwed against rings 36. This device 22 is rotated with the nozzle 5 by gears 23 and 28. To place fresh sausage skin on the nozzle 5 the holding device 20 is displaced to the left by the lever 29 and is then pivoted on the axle 27 to swing it clear of the nozzle. In a modification, Fig. 4, one of the rubber rings 35 is replaced by a hollow resilient ring 43 which grips the skin when pressure is introduced into its cavity 45. This occurs cyclically at the same time as pressure is introduced into the sausagegripping bellows of the parent case. In a further modification, Fig. 5, a single rubber ring 35 is employed, and three grooved rollers 57 arranged symmetrically about the neck of the sausage. In this modification the finished sausages are guided down an inclined shoot 64 by an adjustable pressure roller 70.
Patent GB-637985-A (GB)
Title: Improvements connected with closures provided with a pouring outlet for bottles, cans, and the like vessels
IPC: B65D47/04
Filed: 1948-06-18
Abstract: 637,985. Screw caps for cans &c. CRAWFOD, B. MARION-. June 18, 1948, Nos. 16484 and 27084. [Class 125(iii)] A screw cap for a can, bottle &c., particularly one containing petrol for filling cigarette &c. lighters, is provided with one or more outlets 4 through at least one of which a wire 7 passes, the wire being of such diameter as to leave room for the passage of the petrol &c. between it and the inner wall of the outlet. The other outlet, through which the other end of the wire need not necessarily pass, serves as a venting aperture. In the form shown, the left hand aperture serves as the pouring outlet and, before pouring, the wire 7 is bent to the dotted line position.
Patent GB-186124-A (GB)
Title: Apparatus for outdoor sketching
IPC: B43L13/10
Filed: 1921-06-16
Abstract: 186,124. Sanderson, J. G. June 16, 1921. Drawing or sketching appliances.-A device for cutdoor sketching, copying pictures, &c. comprises an arrangement of vertical links a pivoted together and connected by cross-links b, the top link b being extended to form a tracing- point b<1> and a carrier b<11> for a reproducing- pencil, which moves over a drawing-surface carried by a plate x. The links a are pivoted to a bar f sliding on ball or roller bearings in a guidebox g. A vertical arm e<1> extending between pins on one of the links b causes the device to move with the slide-bar f. The device may be mounted on a camera tripod in conjunction with a photographic printing-frame, one half of which is left open to expose the view, whilst the other half carries the sketching paper or the like. An adjustable eye-piece may be employed. In modifications, the bar carrying the tracer and reproducer slides on a vertical rod secured to an horizontal slide, or is carried by a lazy-tongs arrangement.