baber/WOPTO huggingface dataset:
Patent GB-450331-A (GB)
Title: Improvements in or relating to devices for the guidance of air- and water-craft, advertising and like purposes
IPC: B64F1/18
Filed: 1935-02-28
Abstract: 450,331. Visible signalling - apparatus. DARLOT, A., 147, Avenue de Choisy, and CHICK, C., 60, Rue du Montparnasse, both in Paris. Feb. 28, 1935, No. 6423. [Class 118 (ii)] [See also Groups VI, XVIII, and XX] For signalling, advertising or display purposes a device for emitting a smoke or vapour screen and means for projecting a light signal thereon are constructed as a selfcontained unit. In the form shown the unit is carried on a vertical pivot and is caused by one or more vanes to take up an angular position according to the wind direction. The smoke generator 1, Fig. 1, communicates with a hollow, vertical, pivotally mounted tube 2. A frame 3, 4, 5 attached to the tube 2 carries at one end a lamp 8 throwing a vertical beam through the lens 9 and a horizontal beam through the lens 10 towards a member 11 of aerofoil section at the other end of the frame. The member 11 carries a vertical vane 14 for turning the pivoted structure into the direction of the wind and a number of prisms 15 which reflect some of the tight from the beam 10 into a vertical direction. Smoke passes from the generator 1 through three concentric tubes 17, 18, 19, Fig. 3, within the tube 2. The tube 17 leads to an ellipsoidal chamber 20 having a leeward orifice and arranged in a chamber 21 with a circular orifice 22 at the windward end and at the leeward end a slot 23 through which the smoke issues as a horizontal sheet. The slot 23 may have a fitment with a series of diverging pipes from which the smoke issues as a fan. The tube 18 leads to a similar emitter. The smoke passing through the tube 19 issues from the top of the tube 2 round the lamp 24 and forms a vertical column illuminated by lamps 24, 25, 27, 28 and serves as a beacon. Fans may be provided in the tubes 17, 18, 19. The main emitters 23 may emit smoke of different colours and may be automatically shut off when smoke is being emitted as a vertical column. A lamp 29 and optical system 30-34 enables a stencil or film at 35 to be projected on to the smoke screen so that messages may be sent to aircraft.
Patent GB-1302213-A (GB)
IPC: B29C44/30
Filed: 1970-02-11
Abstract: 1302213 Compressed polyurethane foams SERPO PERSONENVENNOOTSCHAP MET BEPERKTE AANSPRAKELIJKHEID 11 Feb 1970 [20 Feb 1969] 6574/70 Heading C3R [Also in Division B2] Compressed polyurethane foam sheets are prepared by (a) spraying polyurethane foamforming reactants from a spraying device on to a support, the support moving relative to the spraying device but remaining at a constant distance therefrom, (b) heating the reaction mixture on the support, and (c) compressing at least a portion of the heated polyurethane sheet prior to hardening of the cell walls so that the cell structure becomes permanently distorted. Fig. 1 shows a schematic set up of a device for use in preparing the compressed foam products. Polyurethane foam-forming constituents are fed from containers 1, 2 and 3 via metering pumps 4, 5 and 6 respectively to a mixing and spraying device 7. The mixture is spread out on an endless conveyer belt 8 and heated by an element 10 before compression of the foam under calendering rolls 11, 12 and 13. A steam generator 14 is provided in front of the calendering rolls for treating the surface of the foam with steam to prevent the foam sticking to the calendering rolls. The final product 15 may be rolled up or may be subjected to punching, cutting to size or application to some object not suited to receiving the reaction mixture 9. It is possible to place on the conveyer belt 8 a backing layer such as carpet, cloth or paper, to which the foam is fixed during compression. The backing layer maybe in the form of an upper backing such as cloth or P.V.C. which is applied on top of the foam prior to compression. Alternatively, a covering layer in powdered form may be applied to the foam surface using a spraying device, the powder being melted together over the sheet by heating. In order to provide the final product with a particular pattern or crosssection, calendering rolls 11, 12 and 13 may be provided with relatively raised and lowered portions.
Patent GB-791021-A (GB)
Title: Improvements in or relating to contact convertors
IPC: H02M7/36
Filed: 1956-03-02
Abstract: 791,021. Converting. SIEMENS SCHUCKEBTWERKE AKT.-GES., March. 2, 1956 [March 2, 1955], No. 6662/5.6. Class 38 (2). The output voltage of a contact current converter is controlled by both magnetic and mechanical commutation delay control, the two control arrangements being so operatively coupled together that the latter becomes effective only when the former has reached the end of its operative range. A contact 3 in each phase of a polyphase rectifier supplying a load 5, having a main operating coil 4 in series with the contacts and switching choke 2 is closed by an auxiliary coil, 8. This is in parallel with. the contacts 3 and choke 2 and in series with an adjusting resistor 7, a rectifier 10, a source of D.C. 9 and a saturable choke 12 whose degree of saturation determines the instant of energization of coil 8 and closure of contacts 3 to provide the mechanical control. Switching choke 2 has a winding 19 in series with rectifier 20 and saturable choke 18 whose degree of saturation determines the degree of premagnetization applied to choke 2 to provide the magnetic control. The premagnetizing windings 13,. 17 of chokes 12, 18 are connected in series with, each other and battery 14 and a variable resistor 16. The windings 13, 17 are so designed that the former has no appreciable effect on the instant of closing of contacts 3 until winding 17 has substantially exhausted its effect. The mechanical control may be attained by varying the current in one of two windings of a synchronous motor driving the contacts. The control may be used for automatic current or voltage regulation.
Patent GB-607919-A (GB)
Title: Improvements in or relating to radiator-and-fan disposition on internal combustion engine rail vehicles with bogie-mounted engine
IPC: F01P5/02
Filed: 1946-03-04
Abstract: 607,919. Rail vehicles; engine cooling. SCHWEIZERISCHE LOKOMOTIV - UND - MASCHINENFABRIK. March 4, 1946, No. 6698. Convention date, March 3, 1945. [Class 79 (iii)] In a rail vehicle comprising a bogie-mounted internal-combustion engine 3 and a radiator 1 mounted on the body, an air duct is provided between the fan 4 and radiator 1, the portion 11 surrounding the fan being fast with the bogie, the portion 10 being fast with the body, and a flexible portion 14 connecting the two. The flexible portion 14 is preferably disposed in a vertical plane passing through the bogie trunnion 13. The duct 10 may be used as cross-bracing for the body.
Patent GB-101267-A (GB)
Title: Improvements in the Valve Mechanism of Internal Combustion Engines.
Inventor: GODEAU LOUIS FERNAND
IPC: F01L5/06
Filed: 1916-05-11
Abstract: 101,267. Godeau, L. r., and Bright, P. May 11, 1916. Valves; valve-gear.-In a four-stroke-cycle engine having a sliding sleeve valve b co-axial with the cylinder, as described in Specification 655/15, a quick movement is imparted to the valve at the ends of the inlet and exhaust strokes by mechanism comprising links h, i, g actuated by a crank f on a half-speed shaft x.
Patent GB-139817-A (GB)
Title: Improvements in and relating to method of and apparatus for casting propellers
IPC: B22C9/00
Filed: 1919-10-14
Abstract: 139,817. Thacher Propeller & Foundry Corporation, (Assignees of Thacher, T. O.). Oct. 24, 1918, [Convention date]. Casting processes; cores; guiding flasks; flasks; moulding processes; moulds; patterns.-Relates to casting large propellers, and consists in special methods of casting and moulding, and special patterns, flasks, moulds, cores, and vents, runners, and gates. The inner ends of the flask parts, for forming the built-up sectional mould, are inclined and carry locating-pins 126, Fig. 1, with ends finished to planes intersecting at the boss centre and matching up with the corresponding planes of the flasks for adjacent blades. Further registration is provided for by bolt-holes 130 and lugs 106 perforated to pass a locating pin. The pattern-carrying flasks and plates have inclined end plates to co-operate with the pins 126, and are drilled and lugged to match up with the holes 130 and lugs 106. Each mould part has a sectional core print formed' by a loose piece 126<a>, Fig. 5, that is removed prior to the application of a machined bottom plate 133, also drilled to receive the locating-pin passing through the lugs 106. The mould parts are then inverted for drawing the patterns. Upper and lower parts are assembled and clamped, and the sectional blade parts are located on a machined plate 101, Figs. 11 and 12, lying on the bottom of a shallow pit and provided with holes to secure the proper positioning of the register pins in the lugs 106. The pins 126 mutually locate the flasks adjacent to the boss. The plate 101 has the ribbed construction shown, to reduce weight, and a central aperture to receive a plate carrying a core 137 that is received into the prints formed in the mould parts, and that itself is formed with a print for the taper boss core 138. Before this core and the upper core 139 are inserted, the partings of the mould are washed with slurry to prevent the formation of fins. Sprue sticks are placed in the gates and risers 140 formed in the upper mould parts, and the whole is bedded in sand, together with gate frames 142, 143, Fig. 11. Metal is poured into central compartments formed in the frames 142 and passes at the bottom by rising gates 147 into side compartments 144 and thence through the gates 140 into the mould. Slag is trapped by the central compartments. The propeller is cast with its blades sloping downwardly, so that the tips are formed first and the boss last, metal finally rising into the basin 145 to maintain a head during setting.
Patent GB-1119744-A (GB)
Title: Packing mechanism
IPC: D01G19/16
Filed: 1967-02-13
Abstract: 1,119,744. Packaging-machines. SCHOKOBUCK G m b.H. 13 Feb., 1967 [19 Feb., 1966], No. 6809/67. Heading B8C. A mechanism for delivering and arranging articles 7, e.g. candies, in containers, comprises a conveyer 1 on which the articles are aligned behind each other, and a device 2 which permits only one article at a time to slide between a pair of gripping jaws 19, wherein the jaws 19 are adapted to be turned about an adjustable angle relative to the conveyer 1 and to be pivoted apart so as to release an individual article and deposit it in a box 6. As described, the conveyer consists of parallel belts 9 driven continuously and rails 10 which lift the candies 7 intermittently from the belts 9. Alternatively the belts may be mounted on eccentric pulleys so that the belts rise intermittently above the rails 10. At the device 2 the foremost candy rests on fixed rails 12 while a following candy may be raised from belts 9 by pivotable rails 11. The gripping jaws 19 are pivotally opened by a pneumatically driven connecting rod 23 when activated by a switch 29 to deposit a candy in box 6 lying on conveyer 5. In the case of candies of non- circular cross-section, correct orientation within the box is obtained by rotating the jaws 19 by rack-and-gear means 24, 25. Switches 32, 34 cause subsequent closing of jaws 19 and rotation back to their original position, while a switch 36 causes a stop 17 to be pivotally raised to allow feeding of the next candy to jaws 19. When stop 17 rises, rods 15 also rise to allow spring-loaded rails 11 to clamp a following candy against a plate 38. Simultaneously a timing relay 39 is actuated which eventually causes the stop 17 to be pivotally lowered again. Each device as shown in Fig. 1 locates only one candy in each box in the desired position. The angle of rotation of jaws 19 is controllable by a set-screw 27. The jaws 19 are provided with a lining corresponding to the shape of the candy but tapering in a downward direction, Fig. 7 (not shown).
Patent GB-1506624-A (GB)
Title: Forming a cable
IPC: D07B5/00
Filed: 1975-04-17
Abstract: 1506624 Feeding and twisting wire BOUYGUES 17 April 1975 [19 April 1974 30 July 1974] 06927/77 Divided out of 1506623 Heading B3E The disclosure is the same as that of the parent Specification 1,506,623, but the claims are directed to forming a cable within a sheath by feeding in strands one-by-one, then twisting them together.
Patent GB-1002447-A (GB)
Title: Filter-type face masks
IPC: A41D13/11
Filed: 1962-02-22
Abstract: 1,002,447. Face masks. MINNESOTA MINING & MANUFACTURING CO. Feb. 22, 1962 [Feb. 24, 1961], , No. 6957/62. Headings A5R and A5T. A filter-type face mask comprises a round preformed moulded seamless one-piece cup of resilient filter membrane weighing not more than 10 grms. and having an area of 20 to 30 sq. ins., the filter membraine comprising a compacted moulded porous layer of randomly interlaced staple textile fibres coated and unified by a rubbery water-insoluble sizing agent the air flow pressure drop therethrough being not over 0. 05" water at a flow rate of 30 litres per minute. In use, the cup is spaced from the nose and mouth and makers low pressure marginal contact with the face. The cup is made by moulding a web of interlaced staple textile fibres e.g. a mixture of drawn and undrawn fibres of a polyester of ethylene glycol and terephthalic acid with viscose rayon fibres, soft pressing with heat the moulded web so that it becomes form-retaining, saturating the moulded web with an aqueous dispersion of waterinsuluble acrylic polymer sizing latex e.g.polyethylacrylate and polyethylmethacrylate latex with an alkyl aryl polyether alcohol wetting agent and an anionic sulphonated alkyl ester for rendering the finished mask wettable, drying the web, cutting it into individual masks, shaping the edges and adding an aluminium nose strip 3 and a securing elastic 2. Specification 966,855 is referred to.
Patent GB-416068-A (GB)
Title: Making trouser waist bands
IPC: D05B35/06
Filed: 1933-03-08
Abstract: 416,068. Apparatus for making trouser waistbands &c. BREGMAN, M., 37A, Camp Road, Leeds. March 8, 1933, No. 6978. [Class 141.] In the manufacture of trouser waistbands and the like in which two strips of fabric corresponding to the facing material and lining are sewn together and then folded longitudinally and pressed before being wound up in coil form, all the various operations are carried out in a continuous operation. As shown, the two strips of fabric are fed in slightly overlapped relation from spools B<1>, B<2>, laterally adjustable, to a guide box S just prior to being sewn by the sewing apparatus indicated broken away in the drawing. The sewn together strips thereupon pass between a roller with a conical enlargement E and a tapered roller D. These rollers bend the strip before passing between a roller G having a flanged end g and an upper roller not shown. A folding plate H is rectangular in section at its entrance and U-shaped at its exit so that the strip is gradually folded over on itself before passing between pairs of plates 1<1>, 1<2> shaped to fold the fabric band exactly in the centre. The band next passes into the nip of pressing rollers K from which it passes by a bridge to a winding spindle V. The spindle V and bridge are pivoted.
Patent GB-869167-A (GB)
Title: Improved change speed gear mechanism for toys and scale models
IPC: F16H3/00
Filed: 1959-02-27
Abstract: 869,167. Reverse gear for toys. LIBRAIRIE HACHETTE. Feb. 27, 1959 [April 11, 1958], No. 6989/59. Class 132(3). [Also in Group XXIV]  A forward-reverse gear for a toy such as a, hoist, comprises an idler pinion 14 in constant mesh with an output pinion 12- and is selectively brought into mesh with driving pinions 22, 23 rotating in opposite directions. or a stationary toothed segment 24 fast with a casing 2 for braking the output shaft 10, there being substantially no intervening free condition of the output shaft. A selector lever 7 pivoted on the output shaft 10 carries between arms 6 the pinion 14. The selector lever is retained-in position. by a resilient detent not shown. In Figs. 3 and 4 (not shown) three gears as above described drive from. two oppositely rotating shafts, common to all the gears and gear-driven from a single input shaft, three reversible and brakeable output shafts. The gear casing 2 is of polystyrene.
Patent GB-898668-A (GB)
Title: Process for producing microcapsules and record members coated therewith
IPC: H01F1/44
Filed: 1961-02-27
Abstract: Microcapsules containing a polar solvent solution or dispersion are prepared by dispersing the polar solvent solution or dispersion in a non-polar liquid containing dissolved polymeric material which is caused to precipitate and deposit around the dispersed polar solvent droplets by the addition of a second non-polar liquid which is miscible with the first but in which the polymeric material is insoluble.  Suitable polymeric materials include ethyl cellulose (preferred), cellulose nitrate, cellulose acetatebutyrate, polystyrene and polystyrene copolymers, natural and synthetic rubbers, polyvinyl chloride, polyvinylidene chloride, vinyl acetate-vinyl chloride copolymers, polyethylene, polypropylene, polybutene, polyisobutylene, polyvinyl fluoride and alkyd resins. The encapsulated material may be an aqueous solution or dispersion of a dye, adhesive or chemical reagent. The capsules may be separated or partially separated from the non-polar liquid e.g. by filtration or decantation and may be insolubilized and hardened e.g. by spring-drying or by washing successively with liquids of decreasing solvent capacity for the polymer.  The separated or unseparated capsules may be used to form a coating on a substrate e.g. by spraying, in particular to form sheet record materials (see Group VIII).
Patent GB-281146-A (GB)
Title: Differential mechanisms
IPC: F16D41/22
Filed: 1927-03-14
Abstract: 281,146. Lewis, F. M. March 14, 1927. Differential gearing suitable for vehicles comprises two driving positive clutches. either of which becomes disengaged automatically to allow the corresponding half-axle to overrun. The width of two driving clutch members 29, 30, Fig. 5, is such that they cannot both be disengaged from driven clutch members 22, 23, which are fast on part circles 18, 19, Fig. 1, and confined within a driving casing 15. The arms 27 of a driving spider are shaped as shown in Fig. 5 so as to cam the shiftable clutch members 29, 30 apart, this separating action being started by springs 41, Fig. 3, in thimbles 40. An overrun shiftable clutch member is withdrawn from engagement by angularly movable means shown as links inclined at a large angle to the gear axis. Thus there is an opposite pair of links 34, Fig. 2, inclined one way, and another pair 35 inclined the other way. In forward running indicated by an arrow in Fig. 5, links 34 pivot on the member 29 to withdraw the member 30 and allow member 23 to overrun. To allow member 22 to overrun, the links 35 withdraw member 29. In backward running, the links 35 withdraw the member 30, and the links 34 the member 29. A link 35 is shown in Fig. 8. One depending stud 36 is a turning fit in a hole 37 in shiftable clutch 30 while the other stud 36<1> has lost motion in a hole 38 in the clutch 29. The link is pivoted upon a cotter pin 42 encircling a spring thimble 40. In a modification there is a link 34 and a link 35 on each of three flats formed on the peripheries of the shiftable clutch members, the spider having three arms.
Patent GB-1328058-A (GB)
Title: Process for the preparation of benzylacetate
IPC: B01J23/644
Filed: 1972-02-16
Abstract: 1328058 Preparation of benzyl acetate BAYER AG 16 Feb 1972 [19 Feb 1971] 7095/72 Heading C2C [Also in Division B1] Benzyl acetate is prepared by reacting toluene, oxygen and acetic acid in the gaseous phase at an elevated temperature in the presence of a catalyst which contains palladium, bismuth and an alkali metal in the form of compounds which are free from Cl, Br, I, S and N, on a catalyst carrier, palladium being optionally present in the form of palladium metal. The catalyst used in the process may be prepared by applying a palladium compound to a support (e.g. silicic acid pellets) which may then be reduced to the metal by a reducing agent, e.g. by aq. or aq. alkaline hydrazine, and the catalyst may then be washed and dried to remove halogen compounds and then impregnated with solutions of alkali metal acetates (e.g. potassium acetate) and bismuth compounds (e.g. bismuth acetate) which are free from halogen, sulphur, and nitrogen in a suitable solvent, e.g. acetic acid and then dried. Examples A-K specifically deal with the preparation of such catalyst.
Patent GB-1275821-A (GB)
Title: Improvements in or relating to agricultural spreading implements
IPC: A01C15/00
Filed: 1969-02-10
Abstract: 1275821 Agricultural spreading implement C VAN DER LELY NV 10 Feb 1969 [16 Feb 1968 21 Nov 1968] Heading AID An agricultural spreading implement has an elongated material container and a feeder member rotatably supported therein and extending lengthwise of the container, in which one feeder member support means is a bearing in a support releasably attached to an apertured wall at one end of the container, and the other support means comprises a socket which allows, when the first support means is unfastened from the container, the feeder member to be axially withdrawn through the apertured wall of the container. In one embodiment plates 10, Figs. 3 and 4, comprises ends of the material container on one of which a bearing carrying plate 22 is attached via wing nuts 23 over an aperture through which the feeder member 18, comprised of parallel rods 19 set about a circumference, passes. The other end of feeder 18 carries a profiled socket 18 cooperating with a similarly profiled end of a shaft 26 which is driven by sprocket 44 and chain 43. The container bottom is curved and contains triangular openings 14 and a slidable masking member 15 containing similar openings 17 by which the flow of material from the container may be regulated. In a second embodiment a hopper 54, Figs. 6 and 7, extending lengthwise of the implement contains a helical prong rotary feeder member 57 feeding material to a centrifugal discharge at the rear. At the forward end a profiled boss of feeder member tube 58 fits into similarly profiled socket 63 which is attached to driven stub shaft 65. At the rearward end tube 58 terminates a stub shaft 70 which is received in bearing 71, itself being removably detatchable via wing nuts 74 on its support plate 73 from over a large aperture 75 in the hopper rear wall. In a third embodiment two hoppers extend transversely of the direction of travel of the implement and contain feeder members 90, Fig. 11, each comprising a tube 91 having stub shafts 92 and 93 at each end and a plurality of dosing members 102. Each feeder member 90 is driven from driven sprocket 124 which has on the end of its stub staft 125 an arm 126A with a profiled projection 127 which engages with a face 99 on arm 98 attached to stub shaft 92. Each stub shaft 93 is journalled in support plate 100 removably detachable via wing nuts 101 to the hopper end wall, and which covers an aperture through which the feed member 90 may be axially withdrawn when plate 94 comes away from dowel pin 96. Apertures in the bottom of each hopper and slidable masking members are also provided.