baber/WOPTO huggingface dataset:
Patent GB-681117-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: A44B19/16
Filed: 1950-09-01
Abstract: 681,117. Sliding clasp fasteners. SANDER, E. Sept. 1, 1950 [Sept. 5, 1949], No. 21597/50. Class 44 A sliding clasp fastener comprises two strips of rubber or the like having interengaging wedge section ribs and grooves. In the form of Fig. 1 one strip 1 has a rib 3 for engagement in a groove 10 in the other strip 2, and a central under-cut beading 5 gripping the edge 6 of the marginal rib 4 of the other strip. In the form of Fig. 3, the strips are symmetrical about a longitudinal axis, the front of the inner strip 1 having a groove 7 to receive a rib 8 on the other. The strips may be reinforced by longitudinal filaments and one of the strips may be provided with suction recesses fastening against a plane face of the other.
Patent GB-788468-A (GB)
Title: Forgeable high strength austenitic alloy steel with niobium-tantalum addition
IPC: C22C38/48
Filed: 1955-07-26
Abstract: A forgeable austenitic alloy steel, having good high temperature properties and being suitable for boiler superheater tubes has a composition within the following range: Cr 14.36-20.0 per cent; Ni., 12.0-18.0 per cent; C, 0.02-0.15 per cent; Mn 0.25-2.5 per cent; Si, 0.1-1.03 per cent; Ta with or without Nb, 1.0-3.5 per cent; Fe and impurities the balance.  The alloy may also include Cu up to 3.0 per cent with or without Mo up to 3.0 per cent.  The alloy may be solution treated at 2200 DEG F.-2300 DEG F. and aged at 1300 DEG F.-1500 DEG F.
Patent GB-704330-A (GB)
Title: Improvements in or relating to the heating of solid material
IPC: F27B1/00
Filed: 1952-08-28
Abstract: 704,330. Shaft furnaces. ADMINISTRATIONSEQUESTRE DES ROCHLING'SCHE EISEN UND STAHLWERKE GES. Sept. 1, 1950 [Sept. 3, 1949], No. 21659/50. Classes 51 (1) and 51 (2) In an annular shaft furnace intended particularly for the burning of limestone in which the charge material passes successively through a preheating, burning and cooling zone in the shaft a, hot gases from the gas fired chamber f pass transversely through the charge material into an inner collecting chamber i from which part of the gases pass transversely through the incoming charge material for preheating purposes into an annular flue o provided with an off-take p and part are re-circulated via a port k and vertical duct l to an annular duct d which is also supplied with heated combustion air passing from the duct e transversely through the treated charge material to cool it. A series of fuel gas supply pipes b engaging burner nozzles c leading to the combustion chamber f have an injector effect on the mixed re-circulated gases and heated primary air in the annular duct d.
Patent GB-621475-A (GB)
Title: Pilot training apparatus
IPC: G09B9/26
Filed: 1945-08-24
Abstract: 621,475. Teaching radio navigation. D'ARCY, E. W. Aug. 24, 1945, No. 21680. [Class 40 (vii)] [Also in Group-XL (b)] In apparatus for training pilots in radionavigation, a photo-electric cell moves under the control of the student in a light-field of varying intensity simulating a radio-beacon field. In the arrangement shown, light from a discharge lamp 41 passing through a transparency 42 produces a light-field 40 having a central black line 40A on either side of which the light progressively increases. The lamp is fed from supply mains through a rectifier 51 and the light is modulated at audible frequency through transformer 48. A rotary dial 64, simulating a rotating loop aerial, in the cockpit of a Link trainer 10x is linked through Selsyn mechanism to the driving motor 62 of the recording " crab " 12x and to a motor 46 geared to rotate the transparency 42. When the photo-electric cell 30x carried on the " crab " is in a light part of the field 40, the audible-frequency modulations of the light produce a tone signal in the earphones 35x. The student turns his dial 64 until the tone disappears, thus simulating the rotation of a loop aerial until a null is obtained. The centre 40B of the field 40 may be a light spot to simulate the condition at a point vertically over a transmitter where no null can be found. In another arrangement, Fig. 2 (not shown), two lamps complementarily energized according to the Morse letters A and N, produce a light-field similar to that from an overlapping beam. In a further arrangement, Fig. 4 (not shown), for training in the use of a rotating beacon with different code-transmissions in different directions, the transparency producing the light-field is divided into sectors of progressively changing intensity from light at one side to dark at the other. The transparency is. rotated slowly in synchronism with a codewheel which interrupts the lamp with a different code letter for each sector. The photo-electric cell in the " crab " then picks up one code at maximum intensity and adjacent codes with diminishing intensity.
Patent GB-1351206-A (GB)
Title: Plastic container and method of and apparatus for moulding parts of same
IPC: B65D43/16
Filed: 1971-04-19
Abstract: 1351206 Blow moulding PLASTIC FORMING CO Inc 19 April 1971 [9 Feb 1970] 21701/71 Heading B5A [Also in Divisions F4 and B8] The double walled body part 1 at least of a container is made by extruding a thermoplastics parison (66, Fig. 10) and blowing it in a twopart mould. The mould is provided with mating parts which fold both layers of the parison over to compression mould hinge pin receiving and bearing walls 34, 31 respectively. Vacuum forming may assist the blow moulding. The cover part 2 may be formed similarly, but in addition to having mating parts (75, 76, Fig. 9) producing hinge pin receiving and bearing walls 25, 24 respectively, the mould (67, 68, Fig. 9) is also provided with mating parts (77, 78, Fig. 9) which fold the parison layers to produce a latch receiving pocket 50. The bottom of the latter may be open or closed by a membrane 35. The cover part 2 could also be single walled and formed by injection moulding. Each hinge pin 40 which may comprise a nail or a piece of cylindrical stock is passed through an offset body band 16 and the hinge walls 25, 34 to bear against the hinge walls 24, 31. The latch comprises parallel anchor and latching bars 42, 45 respectively with side legs 44 extending therebetween. The anchor bar 42 is provided with a tab 43 which is welded within the pocket 50. The latching bar 45 is provided with a finger tab 46 and a tab 47 for locking behind a body part shoulder 48. The latch may be compression moulded from a severed parison portion (72, Fig. 9) or be injection moulded. It may be formed of the same plastics material as the body and cover parts, but be of a different colour or may be formed of a different plastics material. The bottoms of the article receiving compartments 8, 9 in the inner wall 7 of the body part 1 may be removed. The container may be made of polyethylene, polypropylene, vinyl polymers or elastomeric polyolefine.
Patent GB-602894-A (GB)
Title: Improvements in plant and presses therefor for the extrusion of lead and lead alloys
IPC: B21C33/02
Filed: 1945-08-24
Abstract: 602,894. Extruding. BRITISH INSULATED CALLENDERS CABLES, Ltd., and GRIEVE, G. T. W. Aug. 24, 1945, No. 21738. [Class 83 (iv)] A lead press comprising a relatively movable press container and extrusion ram has means for maintaining a continuous circulation of molten metal from a reservoir through a press feeding chamber surrounding the ram to and from the front of the ram so that that end of the container and of the ram are maintained at a high and substantially constant temperature during extrusion. In the form described, the press comprises a fixed container 1, a vertically movable extrusion ram 3 and a die box 4 with a die 5. The container is fitted with a liner 6 having at its upper end a bore larger than the ram and tapering to a smaller bore communicating with the die box. The top of the liner has an outwardly flared portion terminating in a flange to which is bolted a chamber 16. The power part of the liner is cooled by means of fluid circulating through grooves 11. The space within the chamber 16 and between the ram and the liner is divided into two by means of diametrical partitions 29 in the chamber 16 and the top of the liner and by diametrically opposite keys 35 screwed to the ram and operating in keyways 32 in the partitions and in the liner. An inlet pipe 28 is connected to one space of the chamber 16 and an outlet pipe 27 to the other. At its lower end the ram 3 is tapered as at 44 and is formed with two grooves 45, 46 leading from the diametrically opposite spaces to the bottom of the taper where they may be closed by a valve member 47 having a tapered inner surface which in its upper position abuts the surface 44 and closes the lower ends of the grooves and in its lower position rests on a stop member 52 screwed into the bottom of the ram. The outer surface of the valve is a close working fit within the liner bore and has labyrinth-sealing grooves 59. On the upward stroke of the ram, the valve takes up the position shown in Fig. 8 and allows the molten lead which is continuously supplied by the pipe 28, to circulate through one space of the chamber 16, down on side of the ram, through groove 45 and up groove 46 and through the other space of the chamber 16 to the outlet pipe 27. On the downward extrusion stroke of the ram, the valve is forced on to the tapered end of the ram and closes the grooves 45, 36. Molten lead is continuously fed to the pipe 28 by a pump of the glandless centrifugal type operating well below the surface of the lead in a melting pot (see Group II). Specification 602,933, [Group II], is referred to.
Patent GB-1072149-A (GB)
Title: Improvements in processes for the removal of wool from sheepskin pieces
Inventor: LAWRENCE GEORGE EDWARD
IPC: C14C1/06
Filed: 1965-05-22
Abstract: <PICT:1072149/C6-C7/1> A process of removing wool from sheep skins comprises shrinking the skins and then treating the skins in a bath containing a proteolytic enzyme and a disinfectant bactericide or bacteriostat (e.g. sodium chlorite) until complete digestion of the skins occur.  The enzyme is prepared from an aerobic spore forming microorganism e.g. B. subtilis, B. negatherium, B. cereus, B. pumulus and B. polymyxa.  As shown, skins in an open mesh basket C are placed in closed tank A through which is circulated the treating liquor contained in tank E.  Tank E contains steam coil E' and live steam is supplied to tank A via valve a'.
Patent GB-1384646-A (GB)
Title: Process for the preparation of prostaglandin intermediates
IPC: A23L9/20
Filed: 1972-05-10
Abstract: 1384646 Cyclopentene derivatives IMPERIAL CHEMICAL INDUSTRIES Ltd 12 April 1973 [10 May 1972] 21798/72 Heading C2C  The invention comprises a process for the preparation of cyclopentene derivatives of the Formula I wherein R<SP>1</SP> is a protected hydroxymethyl, protected formyl or a protected 3-hydroxy-1-transalkenyl radical of 4 to 11 carbon atoms, the compounds of Formula I being novel when R<SP>1</SP> is C 4-8  alkanoyloxymethyl, protected formyl or a protected 3-hydroxy-1-trans-alkenyl radical of 4 to 11 carbon atoms, by rearranging oxabicyclo[3,2,1]octene derivatives of the Formula II by reacting them with acids. 8 - Syn - dimethoxymethyl - 3 - oxo - 2 - oxabicyclo[2,2,1]-oct-6-ene is obtained by reacting 7 - syn - dimethoxy - methyl - 2 - oxobicyclo- [2,2,1]hept - 5 - ene with m - chloroperbenzoic acid. 3 - Oxo - 8 - syn - [3 - (tetrahydropyran - 2- yloxy)dec - 1 - trons - enyl] - 2 - oxabicyclo[3,2,1]- oct-6-ene is prepared by oxidizing 7-syn-[3- (tetrahydropyran - 2 - yloxy)dec - 1 - trans - enyl]- bicyclo - [2,2,1]hept - 2 - en - 5 - one, resulting from the etherification of 7-syn-[3-hydroxydec- 1-trans-enyl)-bicyclo[2,2,1]hept-2-en-5-one.  The following compounds are obtained in the conversion of a compound of Formula I in which R<SP>1</SP> is dimethoxymethyl into PGA 2 : 4# - Formyl - 1,2,3,3a#,4,6a# - hexahydro - 2- oxo - 1 - oxapentalene, 1,2,3,3a#,4,6a# - hexahydro - 2 - oxo - 4# - (3oxooct - 1 - trans - enyl)- 1 - oxapentalene, 1,2,3,3a#,4,6a# - hexahydro- 4# - (3 - hydroxyoct - 1 - trans - enyl) - 2 - oxo- 1-oxapentalene and its tetrahydropyranyl ether, 1,2,3,3a#,4,6a# - hexahydro - 2 - hydroxy - 4#- [3 - (tetrahydro - pyran - 2 - yloxy)oct - 1 - transenyl] - 1 - oxapentalene, 9α - hydroxy - 15- (tetrahydropyran - 2 - yloxy) - 5 - cis,10,13- trans - prostatrienoic acid, 9 - oxo - 15 - (tetrahydropyran - 2 - yloxy) - 5 - cis,10,13 - transprostatrienoic acid, and the C 15  epimers of 15 hydroxy - 9 - oxo - 5 - cis,10,13 - trans - prostatrienoic acid.
Patent GB-700829-A (GB)
Title: Improvements in illuminating systems for signs or display panels
IPC: G02B6/28
Filed: 1951-09-18
Abstract: 700,829. Signs. FORGES ET ATELIERS. DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. Sept. 18, 1951 [Oct. 4, 1950], No. 21851/51. Class 3(2) [Also in Groups XI, XX and XXXVIII] In an illustrating system, including transmission of concentrated light along transparent rods and its distribution upon signs or panels, the optical devices for concentrating and distributing the light are each composed of a single member made of transparent material and shaped, in the case of the light concentrating device, as a refracting lens and an internal reflector and. in the case of the light distributer as a refracting lens and diffusing surface. The device for concentrating the light from a source L into the end of a transparent light transmitting rod T consists of a transparent body of revolution having the central parts A1, A2 of its end surfaces shaped to form a double convex lens, the annular outer part of one end being spherical and concentric with the source, the annular outer part at the other end being part conical. Rays such as r which pass through the annular spherical part of the end surface are totally reflected by the conoidal side surface of the body and pass outwardly through the annular conical end surface to converge on a point L' inside the transmitting rod T. Rays passing through the central part of the device also converge on the point L<SP>1</SP>. The device for distributing the light from the remote end of the transmitting rod T consists of a frusto-conical transparent body D, the smaller end F<SP>1</SP> of which is in the form of a re-entrant cone having a curved generatrix and refracts light from the rod T on to the larger circular end P which is frosted to diffuse the light. The larger end serves as a display screen and may include suitable signs or inscriptions. Alternatively the distributer may be of prismatic shape, the diffusion surface P being rectangular and the admission surface being shaped as two tangent cylindrical surfaces. The system may include two or more rods which convey light of different colours to a single distributer from selectively operated light sources each having a concentrating device, the distributer being similar to the distributer D<SP>1</SP> but instead of the admission surface being shaped as a re-entrant cone, it has two or more concave surfaces. A transmitting rod with a single exit end and branched to provide two or more entry ends may be used.
Patent GB-261680-A (GB)
Title: Improvements in and relating to puzzles
IPC: A63F9/10
Filed: 1926-09-04
Abstract: 261,680. Laserson, F. M., Davis, M., Longstaff, W. A. R., and Gordon, N. Sept. 4, 1926. Puzzles.-A puzzle comprises a set of pieces, shaped so that they will nest together, each edge of each piece having a compartment which is marked with one or more identification marks, both sides of each piece being provided with such compartments and markings, and the markings on both sides being of the same kind but, in some or all cases, different in sequence, and the markings upon different pieces being of the same kind or complementary to markings on other pieces, but in some or all cases, different in sequence. As shown, the puzzle comprises nineteen hexagonal pieces each provided on both sides with numbered and coloured compartments b. The puzzle consists in arranging the pieces so that the members in the adjacent compartments of each two contacting pieces have the same sum. Each piece may also be provided with a central compartment a containing an identification mark. The puzzle permits of only one correct solution.
Patent GB-1387003-A (GB)
Title: Apparauts for separating material from a pneumatic conveyor
IPC: B65G53/60
Filed: 1972-05-10
Abstract: 1387003 Separating particles from gases LOEWS THEATRES Inc 10 May 1972 [10 May 1971] 21903/72 Heading BIT Material 30 such as tobacco, cotton, paper or grain being conveyed by air (or other gas) along duct 12 is separated from the air-stream by a gas-permeable endless belt 16, the two straight sections of which are preferably inclined at an angle of 20 to 80, particularly 45, to the longitudinal axis of the duct, and are caused to travel in opposite directions by rollers 18 and 20 and a motor (not shown). The separated material passes through a seal 40, formed by rollers 44 and 42, to exit opening 38. The air which has passed through the endless belt may be discharged from the system through a filter which retains particles of dust (Fig. 3, not shown). The belt is preferably made of wire mesh. The duct 12, which is preferably of rectangular cross-section, may be constructed of sheet metal or plastics material. The outer part of roller 44 is made of foam rubber or polyurethane foam; and this roller is resiliently mounted by tension springs. A wiper 45 removes any material which sticks to roller 44. Small particles of material, which pass through the first section of the belt but are trapped by the second, may be removed from the space between the two straight sections by a suction device connected by tubes to the downstream end of duct 12 (Figs. 4 and 5, not shown). Provision may be made so that the belt may be quickly removed for cleaning (Figs. 6 and 7, not shown).
Patent GB-246537-A (GB)
Title: An improved signalling apparatus for motor cars or other vehicles
IPC: B60Q1/34
Filed: 1924-09-17
Abstract: 246,537. Griffin, R. H. Sept. 17, 1924. Road-traffic signals on vehicles. - A stopping and turning indicator for road vehicles comprises a hand 5 pivoted to a spindle 23 and adapted to be swung by a handle 15 in a horizontal plane into positions corresponding to the intended directions or raised to signal " stopping." The spindle 23 is connected to the operating shaft 11 by a flexible shaft 9, the parts being located in a tubular container 16 which has at its upper and a rotatable cap 1 carrying an electric lamp 6 and a reflector. The lamp terminal co-operates with separate contacts or a contact ring mounted on a washer 19, to illuminate the hand in its signalling positions. The hand has a wedgeshaped extension 2 which co-operates with diametrically-opposed slots in the cap 1. When the handle 15 is rotated, the hand is swung in the horizontal plane and the extension 2 rotates the cap 1 and lamp 6. When the handle is pulled, an inclined surface 3 on the cap 1 raises the hand into a vertical position. The hand is lowered by the action of the extension 2 on one of the slots in the cap upon retraction of the handle 15. The apparatus is mounted on the side 18 of the vehicle by a boss 12 having a tapered hole through which passes the casing 16. The boss has set-screws whidh hold the casing 16 in position and allow for adjustment of the amount or angle of projection of the apparatus from the side of the vehicle. Specification 212,002 is referred to.
Patent GB-624764-A (GB)
Title: Improvements in or relating to pressure-sensitive adhesive tape
IPC: C09J7/21
Filed: 1943-12-31
Abstract: Pressure-sensitive adhesive tape is made by copolymerizing in bulk, aqueous dispersion or solution 100 parts of an ethylenic monomer or monomers with from 0.1 to 1.1 parts of an organic cross-linking agent and coating the product on one or both sides of a flexible backing. Monomers specified are methyl, ethyl, butyl, n-hexyl, 2-ethyl-butyl, n-octyl, lauryl, stearyl, cyclohexyl, ethoxyethyl, butoxyethyl, ethoxyethoxy-ethyl, diethylaminoethyl, oleyl and abietyl acrylates and methacrylates; vinyl acetate, propionate, butyrate and benzoate; vinyl butyl ether; N-vinyl succinamide; styrene, methyl styrene, vinyl naphthalene; methyl vinyl ketone, methyl isopropenyl ketone; dibutyl maleate, diamyl and n-hexyl fumarates; ethylene, isobutylene; vinyl and vinylidene chlorides; acrylonitrile, methacrylonitrile; itaconic acid esters.  Suitable cross-linking agents are the allyl and methallyl esters of succinic, maleic, fumaric, itaconic, citraconic, adipic, sebacic, phthalic, crotonic, acrylic, methacrylic, cinnamic, tricarballylic, silicic and boric acids; vinyl acrylate and methacrylate; glycol diacrylate and dimethacrylate; divinyl and diallyl ethers.  The backing may be a film of regenerated cellulose, cellulose acetate, aceto-butyrate or butyrate; methyl, ethyl and butyl cellulose; vinyl chloride/vinyl acetate copolymers, polyvinyl butyral, polyvinyl alcohol; rubber hydrochloride; cellulose acetate laminated to regenerated cellulose; felted or woven fabrics, e.g. of cellulose acetate, nylon, glass or vinyl resins; parchmentized or impregnated paper, e.g. tissue paper.  A double-coated fibrous sheet may be laminated to a non-fibrous backing.  Examples describe (1) copolymerizing ethyl and 2 - ethyl - butyl acrylates with diallyl succinate in an aqueous medium comprising 2-ethyl-butyl alcohol, ammonium persulphate, sodium carbonate and an alcohol sulphate, coagulating the copolymer by addition of aqueous barium chloride solution, dissolving in heptane and ethyl alcohol and spreading on regenerated cellulose film; (12) copolymerizing vinyl butyrate and di-(2-ethylbutyl) ethylene difumarate in an aqueous medium containing polyvinyl alcohol, sodium bicarbonate and benzoyl peroxide, filtering off the copolymer, dissolving in toluene and coating the solution on regenerated cellulose film.
Patent GB-219766-A (GB)
Abstract: 219,766. English Electric Co., Ltd., and Deriaz, P. May 18, 1923. Corrosion, preventing. - Corrosion is prevented in hydraulic turbine installations, e.g. the suction elbow 1, by providing electrical insulation 4 between that and other parts. An electric potential may also be applied bv a source of E.M.F. 5. The method mav also be applied to other parts of the installation which are of different materials, or influenced by different conditions, e.g. to the turbine runner.
Patent GB-517344-A (GB)
Title: Improvements in or relating to agricultural machines
IPC: B62D13/00
Filed: 1938-07-25
Abstract: 517,344. Vehicle couplings. GALE, W. E., and GALE, J. R. July 25, 1938, No. 22010. [Class 103 (v)] A car or lorry chassis is converted for horse or tractor draught by means of a draw-bar 3 pivoted at 8 to oscillate in a rectangular frame fixed to the underside of the vehicle and to the fixed axle B. The frame comprises upper and lower transverse members 2 spaced by end blocks 1 and upper and lower members 9 spaced by end blocks 9a. The draw-bar 3 passes between the members 2'and is pivoted thereto whilst the tail 3a of the draw-bar is guided beween the bars 9. The bars 9 and tail 3a may be faced with wear strips. The track rod 13 is pivoted to the tail at 12 to turn the wheels simultaneously with the draw-bar. The draw-bar is provided with draught bars 5 spaced apart by a transverse member 14 attached to the end of the bar 3.