baber/WOPTO huggingface dataset:
Patent GB-676983-A (GB)
Title: Improvements in or relating to cloches, glass houses and like structures
Inventor: BELL OWEN HENRY
IPC: A01G9/20
Filed: 1949-10-19
Abstract: 676,983. Glasshouses. BELL, O. H. Jan. 19, 1951 [Oct. 19, 1949; Feb. 8, 1950; Feb. 17, 1950], Nos. 26826/49, 3261/50 and 4146/50. Class 20(i). A glasshouse comprising a plurality of glass panels 3 hingedly connected to each side of a horizontal support 1 has means comprising parts 6, 7, 9 adapted to interlock when each panel 3 is inclined to its mounting on the support 1, and adapted to unlock when the panel 3 is moved to a given angle, e.g. by swinging it upwardly, to permit the panel 3 to be detached or slid along the support 1. The means comprise a channel section rail 6 secured to the top frame member 3a of the panel 3, and a plate 9 carried by a pillar 8 on the support 1 and engaging with a slot 7 in the rail 6. The support 1 has at each end a fin 12 engaging a slot 11 in a plate 10 carried by a vertical end prop 2 which is embedded at its lower end in the ground. The slot 11 accommodates two fins 12 and hence the glasshouse can be longitudinally extended. The prop 2 has pivotally connected at 15 two spiked side props 4. A loftier structure can be erected by resting the lower frame members of the panels 3 on a support similar to 1 and having a second, lower row of panels. In a modification, Fig. 6 (not shown), the plate 9 has downwardly extending side flanges which permit the panels 3 to be stable when upwardly inclined to the horizontal. According to first Provisional Specification the horizontal support is of H section and lies on its side, the rail being of right angled Z section, the web of the Z passing through the slot formed between downwardly directed flanges at the ends of the top arm of the H and the end of the bottom arm of the H. The glasshouse is provided with longitudinal and transverse horizontal side and end members, detachably connected at their ends by rings and bars, and the top horizontal member engages the vertical prop by means of tube and bar. The glass panels may be in a curved plane. According to the third Provisional Specification the side props have at their lower ends further side props attached by struts to the vertical prop. The means by which the various parts are interconnected is described.
Patent GB-1211759-A (GB)
Title: Improvements in or relating to crushing machines
Inventor: GUERRIER GEORGES
IPC: B02C13/13
Filed: 1968-06-05
Abstract: 1,211,759. Hulling cacao beans. SOC. DE FINANCEMENT INDUSTRIEL COMMERCIAL ET AGRICOLE. 5 June, 1968, No. 26871/68. Heading A2Q. [Also in Divisions A4 and B2] A crushing machine comprises a drum 4 keyed on a shaft 3 and bearing spaced transverse bars 5 on its periphery and a curved grid 6 also having transverse bars 7. The radius of curvature of the grid 6 is greater than that of the drum 4. In operation, cacao pods introduced at F 1 , where a hopper (not shown) may be disposed, are nipped between the bars 5 and 7, the broken pieces passing through the grid 6. Large fragments are removed at F 2 . Finer material passes through a screen 18 and is removed at F 3 . Cocoa nibs are recovered at F 4  via screen 19 and fine dust passes a final screen 20 and falls into a container 21. The screens 18 ... 20 are jogged by a linkage 12 connected to the main shaft 3. The spacing between the grid 6 and drum 4 may be adjusted by a threaded rod and nut arrangement 9.
Patent GB-726193-A (GB)
Title: Improvements in or relating to brushes
IPC: B29C45/26
Filed: 1952-10-27
Abstract: 726,193. Brushes. ETABLISSEMENTS L. SALVY & FILS. Oct. 27, 1952 [Aug. 25, 1952], No. 26892/52. Classes 19 and 61. The bristles are of flexible plastic material, being moulded integral with a flexible member 5 which is detachable from the handle of the brush. The member 5 is provided with shaped edges 7 engaging grooves of corresponding shape in the handle.
Patent GB-1045405-A (GB)
Title: Apparatus for the machining of workpieces by means of a beam of charge carriers
IPC: H01J37/18
Filed: 1963-07-08
Abstract: 1,045,405. Removing metal by electron beams. UNITED AIRCRAFT CORPORATION. July 8, 1963 [July 11, 1962], No. 26904/63. Heading B3V. [Also in Division H1] An electron beam apparatus for machining workpieces 14, 30 in succession, has an evacuated machining chamber 11 sealed from the atmosphere by the workpieces. The beam generator comprises cathode 2, control cylinder 3, anode 4, apertured plate 6, electromagnetic focusing lens 7 and electromagnetic deflection system 8. Vacuum pumps 5, 10 are provided. The workpieces enter through shaft 13 and seal against its inner walls. Shaft 13 has two opposed conveyer belts 15, Fig. 2 (not shown), and is connected at 21, 22, 23 to a vacuum pump. Chamber 11 has a holder 27 manipulated from outside for receiving the workpiece 30 being machined and subsequently delivering it to an exit shaft 24 also provided with opposed conveyer belts and connected to a vacuum pump. The conveyers may run intermittently or continuously. Workpiece 30 may be bored or milled. In another embodiment, Fig. 3 (not shown), the machined workpieces are allowed to drop into an evacuated chamber carried by a rotary turret. In a further embodiment, Fig. 4 (not shown), the workpiece 30 is pressed upwards by mechanism 53, 54 against an elastic seal 48 to enclose a chamber which is evacuated by pump 47. A member 45 is then rotated to align a through passage 46 with the electron beam for machining the workpiece. Modifications are described, Figs. 5, 6 (not shown), in which the rotary member 45 is emitted and the electromagnetic lens focuses the beam twice, Fig. 6 (not shown). The seal 48 may be a liquid seal or it may be omitted and the vacuum pumps 43, 47 then produce a pressure stage which seals off the machining chamber.
Patent GB-876921-A (GB)
Title: A continuous process for the preparation of 1:4-dibromobutane
Inventor: ELAIN JOHN
IPC: C07C17/093
Filed: 1957-08-26
Abstract: 1:4-Dibromobutane is prepared by a continuous process which comprises introducing tetrahydrofuran into the top of a vertical reaction column and anhydrous hydrobromic acid into the bottom of the column so as to react with each other under normal pressure in the vapour phase and in the absence of either a catalyst or a dehydrating agent, the column being filled with an inert finely-divided material, collecting the resultant reaction products at the bottom of the column, separating 1:4-dibromobutane, unreacted tetrahydrofuran and water, recycling the tetrahydrofuran and the excess hydrobromic acid which passes out at the top of the column and separating the 1:4-dibromobutane from the reaction products.  An apparatus for carrying out the process is described.
Patent GB-1340277-A (GB)
Title: Copolymerisation process
IPC: C08F2/00
Filed: 1971-04-19
Abstract: 1340277 Butene/maleic anhydride copolymers KURARAY CO Ltd 19 April 1971 [1 May 1970] 26978/71 Heading C3P A copolymer is manufactured by precipitation copolymerizing at least one C 4  olefin with maleic anhydride in a substantially wholly organic solvent containing at least 80 weight per cent of isopropyl acetate. In the examples 1-butene, isobutene, cis-2-butene and "return B.B" (a mixture obtained after extraction of butadiene from the C 4  hydrocarbon mixture obtained by decomposition of naphtha and comprising isobutene, 1-butene, trans-2-butene, cis-2-butene, 1,3-butadiene, n-butane, isobutane, propylene and propane) are copolymerized with maleic anhydride in the presence of isopropyl acetate, n-hexane and azobisisobutyronitrile. Comparative experiments are carried out using ethyl acetate, benzene or acetone.
Patent GB-297433-A (GB)
Title: Moulding compositions and plastic materials
IPC: C08G12/46
Filed: 1928-09-20
Abstract: 297,433. Ripper, K. Sept. 21, 1927, [Convention date]. Condensation products of formaldehyde with a protein and with urea or its derivatives or dicyandiamide.-Condensation products which can be moulded by heat and/or pressure are obtained by reacting formaldehyde with protein such as casein and with urea or thiourea or their derivatives. For example, casein may be added to a urea-formaldehyde condensation mixture, or urea or its derivatives, particularly thiourea, may be mixed with a casein paste which is then shaped and treated with formaldehyde, or a casein paste may be treated simultaneously with thiourea &c. and with a solid polymer of formaldehyde, the mixture being shaped by pressure, with or withcut heat. The reactions may be accelerated by the use of known catalysts, and the compositions may include fillers, dyes, &c. Specifications 412/09, 246,126, and 281,933 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) describes the use of dicyandiamide instead of urea &c. It states also that the protein may be added to a urea-formaldehyde condensation product still containing free formaldehyde. This subject-matter does not appear in the Specification as accepted.
Patent GB-616722-A (GB)
Title: Improvements in or relating to the manufacture of sliding clasp fastener
IPC: B29C45/14
Filed: 1946-09-09
Abstract: 616,722. Casting composite articles. CORNER, G. H. C., and LIGHTNING FASTENERS, Ltd. Sept. 9, 1946, No. 27024. [Class 83 (i)] [Also in Group V] Metal is injected substantially simultaneously through a series of nozzles 5 into a corresponding number of passages 4 formed within the mould, each passage being arranged to feed the metal to a number of moulding-cavities. The several nozzles may feed different metals. A number of injectors may draw metal from a common pot. A. complete set of fastener members together with the usual end stops may be cast directly on to a tape. Two sets may be cast directly on to two complementary tapes, the two tapes being united by an end stop cast thereon simultaneously with the casting of the fastener members, and a top stop for one of the tapes also being cast simultaneously, one top stop being omitted to allow a slider to be assembled, after which the top stop is fitted to complete the fastener. Alternatively, both top stops may be cast on and a special slider assembled. Or the tapes may be provided with stops prior to insertion into the mould.
Patent GB-304274-A (GB)
Title: Improvements in or relating to projector lamps
IPC: G03B21/20
Filed: 1928-09-20
Abstract: 304,274. Hall & Connolly, Inc., (Assignees of Hall, T.). Jan. 18, 1928, [Convention date]. Optical apparatus.-In a projector lamp adapted for quick change from a spot light to flood lighting, comprising an arc lamp 1, a condenser lens 4, an objective lens 40 and an adjustable shutter 13, interconnected mechanism is provided for changing the relative position of the arc and the condenser and simultaneously adjusting the size of the aperture in the shutter. The base 9 of the arc lamp mechanism is slidably mounted on a rotatable shaft 12 having a threaded part engaging one foot 8 of the base so that rotation of a thumb piece 10 adjusts the position of the arc relative to the condenser 4 which is fixed to the lamp housing 6. A square sleeve 44<1> slidable on the shaft 12 drives by bevel gears 19 a vertical shaft 18 connected by bevel gears 20, 21 with the operating means of the iris diaphragm 13. For initial setting, the iris diaphragm can be adjusted independently of the light source by pushing up a thumb piece 26 on the shaft 18 against a spring 27 to disengage the bevel gears 19, and then turning the thumb piece 26, the shaft 18 being in two parts connected by a slot and pin connection 25. The objective lens 40 can be adjusted independently on rods 15 by a shaft 28. In a modification, Fig. 2 (not shown), the condenser is movable relatively to the arc and interconnected with both the iris diaphragm mechanism and the mechanism for adjusting the objective lens so that these are simultaneously adjusted. Slip couplings on the shafts permit of independent adjustment of the shutter and objective lens, and the arc lamp mechanism may be separately adjusted. Hollow telescoping cones 45, 46 form a shield for the cone of light between the shutter and the condenser.
Patent GB-1483427-A (GB)
Title: Process for the production of melamine resin solutions
IPC: C08G12/00
Filed: 1975-06-26
Abstract: 1483427 Preparing melamine-formaldehyde resins; cross-linked lacquers CASSELLA FARBERKE MAINKUR AG 26 June 1975 [27 June 1974] 27092/75 Headings C3R and C3P Melamine resin solutions are produced by (i) heating melamine with 2-4À5 molar parts of formaldehyde and 3-20 molar parts of a C 1-3  alkanol in the presence of a catalytic amount of an acid at 40-120 C. for 1-10 hours, (ii) neutralizing the product and concentrating it by distillation to at least 85 wt. per cent solids, and (iii) adding 0À5-10 molar parts of a C 3-18  alkanol, of which up to 80% may be replaced by an equal weight of a known hydrocarbon lacquer solvent, and concentrating the solution to 65-80 wt. per cent solids content. Stage (i) is preferably continued under reflux until a 70% solution at 25 C. has a viscosity of up to 50 Poise. Acid may be added in stage (ii) to catalyse the trans-etherification of 5-50% of the methylol ether groups originally present. In Examples I-II melamine is refluxed with 8À5 or 17 molar parts of methanol or 14 of ethanol or isopropanol and 3À1-4 molar parts of 90% paraformaldehyde (10% water) or (Example 10) CH 2 O in aqueous methanol, in the presence of p-toluenesulphonic acid for 2-6 hours; the product is neutralized with Na 2 CO 3  and concentrated to a b.p. of 105 C. at 200 mm. Hg.; 2-3À5 molar parts of isobutanol alone, or 2À5-6À5 molar parts of isobutanol, or (Example 8) isopropanol, or (Example 9) ethylhexanol with p-toluenesulphonic acid catalyst are added and the mixture concentrated to 70% solids content; the products have viscosity 8À2-29À8 poise/25 C. and dilutability of at least 1 : 1 with xylene and 1 : 1À5 with isobutanol. In Examples 12 and 13 the solution from Example 4 is mixed in 20 : 80 wt. ratio with a trimethylolpropane/hexamethylene glycol/dipropylene glycol/isophthalic acid/adipic acid polyester of AN 210 and HN 150 and MW 1000 to 2000 or in 15 : 85 wt. ratio with a styrene/ethylhexyl acrylate/hydroxyethyl methacrylate/acrylic acid copolymer to give clear lacquers.
Patent GB-1346647-A (GB)
IPC: G03G15/32
Filed: 1971-06-11
Abstract: 1346647 Selective printing XEROX CORP 11 June 1971 [15 June 1970] 27432/71 Heading B6F Electrostatic printing apparatus employs a pair of reciprocating print head assemblies (30, 32, Fig. 2), one of which traverses the entire print field in a record mode while the other one moves in the opposite direction in an inoperative mode. The print head assemblies are supported respectively on parallel spaced apart guide rails (34, 36) so that the recording styli of each, prints along the same line relative to a moving recording web. However, means is provided for moving the non-recording styli out of the path of travel of the recording styli as well as disengagement from the recording web. Each print head assembly comprises a base member 60 adapted to reciprocate along guide rail (34) or 36, a frame member 68 pivoted to the base member on an axle 65, and a recording styli holder 70 pivoted to the frame member on a shaft 72. Springs 100 and 94 bias the recording styli 78 into engagement with the web 16 passing over a back-up electrode 81. An endless cable 152 passing round two pulleys, one of which is driven by a reversible motor (54, Fig. 2), has both print head assemblies clamped thereto by way of bar 84 with a set screw 86. The bar 84 is mounted on a yoke (106) pivoted at (108, Fig. 5) to the base member 60. An end 88 of bar 84 acts as a cam and engages a cam follower 90 forming an integral part of the frame member 68. When the drive of the cable is reversed for carriage return the cam 88 engages the inclined surface 92 of the cam follower 90, and in so doing depresses the frame member 68. The holder 70 thereupon moves down to engage an adjustable stop 98 on the base member 60, and in so doing is pivoted with respect to the frame member 68. For carriage return, therefore, the recording styli 78 are positioned out of the path of the recording styli on the other print head assembly. The other print head assembly is a mirror image of the first assembly.
Patent GB-483020-A (GB)
Title: Improvements in colour photography and kinematography
IPC: G03C7/30
Filed: 1936-10-09
Abstract: 483,020. Colour photography. TRUECOLOUR FILM, Ltd., DOLGORUKI, E. SANDERS-, and REINDORP, J. H. Oct. 9, 1936, No. 27434. [Class 98 (ii)] A multi-colour photographic record is produced on exposed material, having three superposed silver halide emulsion layers and intermediate filter layers not decolorized by developing baths, by developing silver images in all the layers, subjecting the two outer layers successively to reversal exposure by light of such composition that it is prevented by the filter layers from reaching the intermediate layer, successively colour-developing differently coloured reversed images in the outer layers, re-exposing the material to light to obtain a reversal exposure in the intermediate layer, and colour-developing the intermediate layer to another colour, the filter layers being rendered colourless at any stage following the colour development in the two outer layers. As shown, the material comprises a celluloid or paper base 1, with blue, red and green (or blue, green and red) sensitive emulsion layers 2, 3, 4 and intermediate filter layers 5 coloured yellow with the free base of Auramine. The emulsion layers may contain restraining filter dyes. An antihalation layer 6 comprises a colloid layer containing neutral carbon black or a water-soluble black dyestuff. The exposed material is developed in a developer which may contain potassium thiocyanate, and the undeveloped part of the latent image is destroyed with cupric bromide or chloride. The material is cleared with sodium bisulphite solution and washed, and if necessary the sensitivity of the material is restored by treatment with dilute sodium sulphite solution. The material is re-exposed to blue light through the support and developed to blue-green by a colour developer containing p-aminodiethylaniline and 2 : 3 : 4-trichlornaphthol. The material is washed, exposed to blue light through the front, and developed to yellow in a colour developer containing p-aminodimethylaniline and p-nitroacetoacetanilide. The material is exposed to strong white light, or is treated with dilute acetic acid to destroy the filter layers 5 and exposed to blue or white light, and the latent image in layer 3 is developed to magenta in a colour developer containing paminodiethylaniline and p-nitrobenzylcyanide. The silver images are removed by Farmer's reducer or by bleaching and fixing. The material may be treated as described in Specification 465,765. When the base 1 is paper, emulsions containing half the normal amount of silver are used. The process may be used in copying coloured positive records. Specifications 440,032, 444,198, and 451,699 also are referred to.
Patent GB-202545-A (GB)
Title: Improvements relating to watch wristlets and the like
IPC: A44C5/00
Filed: 1922-10-11
Abstract: 202,545. Brett, F. J. Oct. 11, 1922. Watch bracelets.- A watch or like wristlet comprises a short portion 2 of a thin band of metal or other rigid material hinged at 3 to a longer portion 1. The end of the portion 2 is formed with a hook 4 for engagement with one of the watch lugs. The end 5 of the portion 1 is passed through the other lug and pressed tightly around it to form a permanent connection. The edges of the band are bent over on its upper surface to form a narrow beading 8. If both ends of the band are provided with hooks, one may be made adjustable.
Patent GB-726305-A (GB)
Title: Improvements in or relating to electric cables
IPC: H01B9/02
Filed: 1953-10-08
Abstract: 726,305. Cables. COMPAGNIE GENERAL D'ELECTRICITE. Oct. 8, 1953 [Nov. 18, 1952; May 26, 1953], No. 27669/53. Class 36. In a paper-insulated cable, a smooth continuous screen is provided between the layers 2 of paper strips and the conductor 1 and/or the cable sheath, the screen comprising at least one layer 4 of semi-conducting strip material directly in contact with the conducting member and a very thin semi-conducting covering 9 deposited directly on one face of the paper strip 7 which is adjacent the layer 4, so that the covering 9 is in contact with the layer 4. The total thickness of the strip 7 and its coating 9 preferably does not exceed the thickness of any of the remaining insulating strips.
Patent GB-1512643-A (GB)
Title: Rigid structure
IPC: E04C2/42
Filed: 1974-06-21
Abstract: 1512643 Composite panels M E A PASSMORE 23 May 1975 [21 June 1974] 27718/74 Headings E1K and E1W [Also in Divisions B5 and F2] A rigid structure for large unsupported spans for use in buildings, bridges, ships, oil rigs helicopter landing pads or packaging, comprises a first layer 1 of generally corrugated form having slots in one side thereof extending from the crests of the corrugations, and a plurality of laminal 11 arranged across the corrugations of the first layer and having slots therein so disposed as to enable the laminal to engage and lock into the slots in the first layer at an angle to the plane of the structure. The first layer may be a single sheet of material or a plurality of single crests which may be either closely adjacent or spaced apart. The crests of the corrugations may be curved or flattened. Individual crests may have edge flanges extending in the general plane of the structure. Solid triangular members may be secured adjacent the crests for attaching webs which may completely enclose the structure. Each layer may have stiffened portions where the slots of the other layer engage it. Blanks for forming the first layer are also described. The structure may be made out of cardboard; plastics, wood metal reinforced concrete or glassfibre reinforced cement.
Patent GB-191501-A (GB)
Title: Improvements in or relating to brushes suitable for scrubbing, washing, toilet and like purposes
IPC: A47L13/22
Filed: 1921-10-19
Abstract: 191,501. Goodwin, H. R. Oct. 19, 1921. Soap holders, combined with brushes, have outlets arranged at a distance above the bottom of the receptacle so that the supply of soapy water to the brush is controlled by the operator. As shown in Fig. 1, the brush b is provided with a receptacle a having a sliding perforated lid d and outlets i along the upper edge. Pieces of wood or sheet metal f, f<1> are arranged to slide in an opening in the top of the receptacle whereby the extent of the perforated lid d exposed may be varied. Soapy water formed in the receptacle is delivered through the lid d and outlets i to the brush by tilting or shaking. In the construction shown in Fig. 6, the receptacle a has a contracted opening a<5> leading to a portion over which is a cylindrical upper extension adapted to contain comparatively large pieces of soap. These pieces do not enter the main portion of the receptacle until they have been reduced in use to slip through the opening a<5>. The openings for escape of soapy water consist of perforations i and longitudinal slots i'. In another construction, the receptacle is enclosed within an outer casing, the soapy water being shaken out from the inner receptacle to the outer casing and flowing from thence through holes in the brush stock to the bristles. In a further construction, the capacity of the soap receptacle is increased by one or more longitudinal extensions projecting through the stock of the brush.