baber/WOPTO huggingface dataset:
Patent GB-451739-A (GB)
Title: Apparatus for impregnating timber
IPC: B27K3/10
Filed: 1935-10-29
Abstract: 451,739. Treating wood. KUMMER, W., Wiedlisbach, Berne, Switzerland. Oct. 29, 1935, No. 29799. [Class 140] Apparatus for impregnating wood with the vapour of tar oils, e.g. creosote, comprises two tanks connected by a pipe line in which is a pump so that vapour may be transferred from one tank to the other. A pair of cylindrical tanks 1, 2 are connected by pipes 1a provided with a pump 1b driven by a motor 1c. The timber 3 is loaded on wagons 4, 5. Creosote 6 is contained in the lower part of tanks 1, 2 and is heated by steam pipes 18, 19, or hot gases or electric heating elements. Pipes 7, 8, are used to discharge the creosote into a truck 10 and vapour may be evacuated by pipes 13, 14 into water. In impregnating small poles pressures of 2 to 6 atmospheres and temperatures of 80-120‹ C., are used. The two tanks are used simultaneously and if the impregnation in one is completed first, vapour is transferred to the other tank by means of the pump to expedite the process and to avoid waste.
Patent GB-656846-A (GB)
Title: Improvements relating to the manufacture of fibrous cement sheets
IPC: B28B1/52
Filed: 1947-11-10
Abstract: 656,846. Moulding fibrous cement sheets. MAGNANI, A. Nov. 10, 1947, Nos. 29876, 29877 and 29878. Convention dates, Sept. 8, 1939, Sept. 29, 1939, and April 11, 1940. [Class 87 (ii)] [Also in Group VIII] Plain or corrugated fibro-cement sheets are made by distributing the material in pasty form on to a water-permeable endless fabric belt 7, and compressing it by a roller 81. Suction boxes 4<SP>1</SP> moving with the belt, apply suction through the belt at least where the material is distributed and compressed. The material may be fed through a pipe 9. The belt is removed at right angles to the sheet, and the sheet received on a table 11. When making corrugated sheets, the belt is corrugated by rollers 16, the tops of suction boxes are corrugated and the roller 8<SP>1</SP> and, if desired, a distributing roller 8 are corrugated. The belt may be cleaned at 12. The suction boxes 4<SP>1</SP> which may be hinged together pass over hollow guides 19, Fig. 7, having slots 19<SP>11</SP> which communicate with slots in the boxes. Suction is applied to the guides 19<SP>11</SP> by pipes 19<SP>1</SP>. Rubber members 18 seal the gaps between boxes. The tops of the boxes may be removable for making sheets of different contours. To obtain a sliding action between the compressing roller and the sheet, the roller may rotate at a different speed from that at which the sheet travels or the roller may be reciprocated to and fro over the sheet. A roller for making corrugated sheets comprises elements 32, 34, Fig. 21, the elements 32 being freely mounted on the shaft 33 and the elements 34 being fixed to the shaft. The shaft may be driven from racks 36 moving at the same speed as the belt. The feeding device may be stationary or it may be reciprocated over the sheet. When it is stationary, it may consist of a frame 21, Fig. 9, and a roller 20. When it is reciprocated two rollers are used, Fig. 13 (not shown). The height of the rollers may be adjusted. The rollers may be replaced by inclined plates, Figs. 11 and 15 (not shown). If it is required to lay several superimposed parallel layers, either an adjustable reciprocating device or several stationary devices may be used. Inclined layers may be laid, by using two rollers and reciprocating them in a plane inclined to the sheet. When using this method, to prevent the thickness of the layers varying at the ends of the feeding stroke, the rollers may run on guides which cause the rollers to travel for a distance parallel to the belt, then inclined, and then parallel again, see Fig. 19 (not shown). The feed pipe for the feeding device may be moved from side to side of the feeding frame, .see Fig. 17 (not shown). The Specification as open to inspection under Sect. 91 comprises also the use of a roller as shown in Fig. 21, in which the elements 32 may be driven at a different speed to the elements 34. This subject-matter does not appear in the Specification as accepted.
Patent GB-1003357-A (GB)
Title: Improvements in or relating to inflatable buoyancy chambers
Inventor: HARDY DEREK JAMES
IPC: B60V1/00
Filed: 1963-07-27
Abstract: 1,003,357. Inflatable buoyancy chamber; keels; air cushion vehicles. WESTLAND AIRCRAFT Ltd. June 24, 1964 [July 27, 1963], No. 29881/63. Headings B7A, B7K, B7S and B7V. A pliable buoyancy chamber defined over a major portion of its surface by a pliable skin 5 includes apertures 10 for the inlet and outlet of gas and a collapsible linkage inside the chamber which governs the folding of the skin in collapsing so as to provide a flat collapsed pack. As shown, the chamber is fitted to the bottom structure 1 of an air cushion vehicle but may also be fitted to boats, pontoons, catamarans, and the sponsons of flying boats. The skin 5, e.g. of rubberized fabric, is arranged to inflate into side lobes 5A and a bottom lobe 5B. Within the chamber are struts comprising longitudinally extending webs 3 and tubes 6. The tubes are pivoted at 7 to the structure 1 and attached to the skin by clamps 5C. When the chamber is collapsed the struts pivot at 7 and the dimensions of the skin of lobes 5B are such that the skins of lobes 5A are folded beneath it and the chamber fits in well 4 with its outer surface flush with the lower surface of structure 1 (Fig. 2, not shown). The struts may be actuated by cables 8 or by torsion bars (not shown) attached to end 7. The chamber may be vented by opening longitudinal vents in the skin, or the sides of it may be spaced double walls so as to duct a curtain air flow. Two such chambers may be fitted to the vehicle.
Patent GB-1262998-A (GB)
Title: Improvements in wire mesh welding apparatus
IPC: B23D31/00
Filed: 1969-06-12
Abstract: 1,262,998. Welding by pressure. EVG. ENTWICKLUNGS UND VERWERTUNGS G.m.b.H. 12 June, 1969 [19 July, 1968], No. 29882/69. Heading B3R. Apparatus for manufacturing welded wire mesh mats comprises at least one mesh welding machine SM having devices for adjusting the longitudinal and transverse wire spacing and the mat length and width, the adjustment devices being connected to and controllable by an automatic controller St which is connected to and receives instructions from a computer R having a limit data store Sp in which are stored standard limiting values for the mats, the computer being arranged so that on the basis of input data relating to the desired longitudinal and transverse strengths of the mats, taken in combination with the stored limiting values, it determines the economically best combination of values for at least certain areas of the mats and transmits corresponding orders to the controller. The single welding machine SM has devices D1, D2, D3 for feeding selectively longitudinal wires of three diameters d1, d2, d3 and has three further devices for feeding transverse wires of three diameters. The automatic controller St is connected to a selector switch U selectively to one of three buffer stores PS1, PS2, PS3 of the computer. The computer has the input terminals f L , f Q , L, B, D, n, respectively, for longitudinal wire cross-section data, transverse wire crosssection data, length of mat, width of mat, thickness of concrete slab in which the mat is to be used and number of mats to make up a batch. The computer determines which of the diameters dl, d2, d3 must be used to obtain the most economical result, determines the longitudinal wire spacing t L  and transverse wire spacing t Q  and transmits the information to buffer store PS1, PS2 or PS3. The quantity t L  controls the transverse spacing of the electrodes, t Q  the stroke of advance of the mat, L and B control cut-off shears. As soon as all the mats using wires of diameter d1 have been made the machine SM is changed to wires of diameter d2 and the switch U makes connection with buffer store PS2. Finally the machine SM is changed to wires of diameter d3 and switch U connects to store PS3. Three welding machines each for a single diameter wire may be used instead. The computer may print on a card information relating to each batch of mats.
Patent GB-1037634-A (GB)
Title: Improvements in steam generating plant
Inventor: PETERS MARTIN CHARLES
IPC: G21D5/08
Filed: 1962-08-03
Abstract: 1,037,634. Heating steam boilers. BABCOCK & WILCOX Ltd. Aug. 2, 1963 [Aug. 3, 1962], No. 29900/62. Heading F4A. [Also in Divisions G4-G6] A steam generating plant comprises a nuclear reactor connected to a first heat exchanger in a primary coolant circuit utilizing an alkali metal coolant, a secondary coolant flowing through said first heat exchanger and a second heat exchanger in which steam is generated, said secondary coolant comprising a fluid containing a suspension of solid particles and being inert to fluids inadvertently leaked into it from the first or second heat exchangers, the coolant pressure bath being above atmospheric and the primary coolant being at a higher pressure than the secondary coolant. By using a second coolant, the possibility of a heat exchanger failure resulting in a mixture of water and alkali metal coolant is avoided. Thus the reactor pressure vessel does not have to be built to withstand the pressures resulting from such a mishap. The primary coolant may be sodium, potassium, or lithium, or mixtures thereof; the secondary coolant is preferably carbon dioxide, nitrogen, helium, argon, or a mixture of two or more of these gases, containing preferably graphite particles. The reactor 2, first heat exchanger 6, primary coolant circuit 4, and its associated pump 12 and pressurizer 14 are situated within a biological shield 53. The secondary coolant circuit 8 includes the second or steam generating heat exchanger 10 which is in two parts, a vaporizer 46<SP>A</SP> and a superheater 44<SP>A</SP>. Included in parallel with the secondary coolant circuit are a centrifugal separator 26, a heated particles reservoir 22 and a gas reservoir 28 connected to a larger storage vessel (not shown). Suitable valves and piping enable the amount of particulate graphite in circulation to be varied according to heat transfer requirements. The volume of gas can also be varied.
Patent GB-669397-A (GB)
Title: Improvements in or relating to measuring apparatus
IPC: G05B11/01
Filed: 1948-11-17
Abstract: 669,397. Electric control systems. WHEELCO INSTRUMENTS CO. Nov. 17, 1948. [Nov. 18, 1947] No. 29912/48. Class 40 (i). The pointer 22 of a measuring instrument 21 responsive to a physical condition, e.g. temperature, pressure, flow, humidity, etc., and a follow-up lever 23 pivoted coaxially therewith, carry, respectively, a metal screen 24 and a pair of coils 25 forming part of the tuned grid circuit of a tuned anode-tuned grid oscillator 26. Movement of the pointer varies the tuning of the oscillator from its normal partial resonance condition to vary the potential across the load resistor 36 in a sense depending on the sense of the pointer movement.. The resultant change in flow of anode current in the amplifier tube 39 produces a differential change of bias on the tubes 53, 54 causing one or the other to conduct to drive the two phase motor 15 in the appropriate sense, the motor driving the lever 23 to follow up the pointer and also operating a recorder 10 indicating the value of the condition.
Patent GB-641938-A (GB)
Title: Improvements in surface coverings
IPC: B41M3/18
Filed: 1946-10-08
Abstract: 641,938. Coated fabrics decorative paper. BURGESS, A. F. (United Wallpaper, Inc.). Oct. 8, 1946, No. 30009. [Classes 96 and 140] [Also in Group XV] A sheet of wallpaper &c. has applied to at least one surface an oleo-resinous ground coating, decorative material comprising oleoproteinous water ink, and an outer protective resinous coating. This is stated to produce a surface resistant to grease, ink stains &c. The term " resinous " is intended to cover cellulose derivatives. As described, the ground coating comprises resinous material, oleaginous material, a thinner and, if desired, a pigment. The resinous material may be a combination of any of the following : ester gum, alkyd resins, dammar, kauri or Manila gum, ethyl or benzyl cellulose, acrylic resins, methyl methacrylates or polystyrene. The oleaginous material may comprise vegetable oils, e.g. linseed, soybean, castor or Chinawood oil, and synthetic drying oils. Suitable thinners are petroleum hydrocarbons, benzine, benzene, turpentine and turpentine hydrocarbon substitutes. The pigment may comprise white lead, zinc oxide, lithopone, zinc sulphide, titanium dioxide, calcium sulphate or calcium carbonate. In order to reduce penetration of the paper a small amount of an active alkali agent in water may be emulsified into the coating. This agent may be sodium silicate, sodium carbonate, sodium hydroxide, ammonium hydroxide or trisodium phosphate. Plasticizers such as tricresyl phosphate or di-octyl phthalate may also be included. The decorative material comprises pigments, a protein binder, an oleaginous plasticizer and water as a vehicle. The pigments may comprise lithopone, titanium oxide, China clay, kaolin, calcium carbonate, iron oxide yellow, burnt umber, toluidine red, and Monastral blue in any combination. The binder may comprise a water dispersion of casein, soya or corn protein, or glue. Suitable plasticizers are mineral oil, decolourized neutralized hydrocarbon oil, glycerine, glucose, and sulphonated oils. The protective coating may comprise resinous material, a solvent, a plasticizer and a flatting agent. The resinous material may comprise a cellulose derivative, e.g. ethyl, nitro- or benzyl cellulose or a methyl methacrylate or polyvinyl chloride. Suitable solvents are ethyl, butyl and propyl alcohol, benzene xylol and methyl ketone. The plasticizer may comprise castor oil, mineral oil, tricresyl phosphate, dioctyl phthalate or trimethyl phthalate. Suitable flatting agents are finely ground dehydrated silicas, diatomaceous earth and calcium carbonate. An example is given of a composition for the three coatings of the wallpaper. The process for making wallpaper is as follows. The ground coating is applied and the paper is passed through a drier for 10 minutes. The decorative material is then printed in several layers and the paper dried again. The paper is then passed through calender rollers to press the decorative material into the ground coating and a thin film of the outer protective coating is applied.
Patent GB-244450-A (GB)
Title: Manufacture of arylido-anthraquinone derivatives
IPC: C09B1/52
Filed: 1925-11-28
Abstract: 5 : 8-Dihalogenquinizarins are condensed with primary aromatic bases in the presence or absence of an acid binding agent and in the absence of copper powder; the 5 : 8-diarylidoquinizarins are insoluble in alkalies and after sulphonation dye wool from an acid bath in green shades.  According to examples, 5 : 8-dichlorquinizarin is heated with aniline and sodium acetate or with p-toluidine; the products are then sulphonated with concentrated sulphuric acid.
Patent GB-443481-A (GB)
Title: A crushing or like machine for solid and semi-solid material, particularly foods of animal and vegetable origin
IPC: B02C18/30
Filed: 1935-11-01
Abstract: 443,481. Grinding or crushing apparatus. ZICKWOLF, H., 24, Schweizerstrasse, Frankfort-on-Main, Germany. Nov. 1, 1935, No. 30143. [Class 59] [See also Group VI] In a machine for disintegrating foods &c. having a bush provided with internal toothed ribs, the bush being inserted in a cylindrical casing and co-operating with a rotary worm, the tapered worm is provided with teeth on a cylindrical portion at the outer end of the worm and also on the worm thread, the teeth engaging between and coacting with the teeth on the ribs of a divided bush. The bush is divided into upper and lower halves i, n which interengage by means of V-shaped projections and slots, the teeth being formed as longitudinal strips separated by corresponding grooves. The rotary member a is helically grooved, the plain end being formed with teeth r<1> and the tops of the helical threads with teeth r<2>, formed by triangular grooves at right angles to the axis and gapped with helical grooves.
Patent GB-901122-A (GB)
Title: Improvements relating to the winding of yarns, threads and like filamentary material into packages
IPC: B65H63/06
Filed: 1959-09-04
Abstract: 901,122. Spinning and testing yarns. GARLAND, T. Aug. 9, 1960 [Sept. 4, 1959], No. 30200/59. Drawings to Specification. Class 120 (3). Knots in yarn which is being wound into a package are counted and recorded up to one more than an acceptable limit of two by an electronic device comprising a micro-switch which, on successive actuation due to the arrival of knots at the winding station, feeds voltage pulses (derived from a high tension supply) to two cold-cathode discharge tubes provided with trigger electrodes, and two discharge lamps one or the other or each of which is ignited by the cathode voltage resulting from the "firing " of the tube(s) to indicate that one, two, or at least three pulses respectively have been fed. The contact lever of the microswitch may rest upon a roller movably mounted at an adjustable distance from a bar over which the yarn passes on its way to the winding spindle. A set of the devices mounted on a winding machine to provide separate indication for each spindle may comprise a cancellation circuit whereby all counters are reset to zero, i.e. all lamps are extinguished, when another micro-switch is automatically operated at the commencement of a fresh winding operation. A manually-operated switch enables a test pulse to be applied to all counter circuits before winding commences.
Patent GB-519482-A (GB)
Title: Improvements relating to presses for use in the working or testing of metals or other materials
IPC: G01N3/10
Filed: 1938-10-19
Abstract: 519,482. Hydraulic intensifiers. E. M. B. CO., Ltd., CADBURY, G. N., and SMITH, S. Oct. 19, 1938, No. 30221. [Class 69 (ii)] [Also in Group XXII] To avoid risk of injury to cutting, drawing, or other metal working or testing machines operated by crank, cam, or the like, one of the tools of the machine is supported by hydraulic ram b, the cylinder a of which is connected to the smaller cylinder d of an intensifier loaded by compressed gas at e. The ram b is pressed up by a spring j and its too rapid return is prevented by a one-way choke m. The cylinder e is connected to a reservoir p and is supplied from a compressor or bottle. not shown, through a reducing valve i. When it is desired to replenish liquid in the cylinders a, d a valve u is closed, a valve s in a pipe r, leading to a reservoir q containing some fluid, is opened and an exhaust valve t is opened until an indicator x shows that the pistons f, g have moved down sufficiently under the influence of a spring v. The valves t, s. and u are then returned to their normal positions.
Patent GB-230157-A (GB)
Title: Improvements in or relating to lamps for vehicles
IPC: B60Q1/24
Filed: 1923-11-30
Abstract: 230,157. willcocks, A. J. Nov. 30, 1923. Lighting, systems of; vehicle lamps.-A lamp is mounted on each side, and near to the rear of a vehicle so that both sides of the vehicle are illuminated simultaneously. The lamp s preferably comprises a curved front glass t and a bottom glass u. The lamps s may be switched on automatically when the head lamps are switched off. Specification 116,883 is referred to.
Patent GB-1355308-A (GB)
Title: Photographic method for printing a screen structure for a cathode ray tube
IPC: G03F7/20
Filed: 1972-06-28
Abstract: 1355308. Luminescent screens RCA CORPORATION 28 June 1972 [28 June 1971] 30260/72 Heading H1D In the manufacture of a black matrix colour television screen wherein hardened dots are formed on the screen in positions where phosphor dots are subsequently to be deposited, the whole screen then being coated with lightabsorbing material and the dots with their overlying coating removed to leave the required matrix, the dots are formed by exposing a photo-resist through apertures in a shadow mask and the exposure is limited to make them smaller than the apertures. The thickness of the photo-resist is important and may be controlled within the range 0À1 to 0À3 mg/cm<SP>2</SP> by adjusting the viscosity within the range 9-30 centipoises at 25 C.; the best viscosity is 11-12 cps when maximum size reduction is required, but greater viscosity may be used if the screen is subjected to flood exposure before, during, or after the exposure through the shadow mask. The light source should be smaller than usual and may have an effective diameter of 60-130 mils, preferably 80 mils. The required reduction in diameter of the dots may vary over the screen area, e.g. from 1 mil. at the centre to 3 mils. at the corners, and this may be achieved by providing in the lighthouse used for the exposure process a filter which reduces the light intensity towards the edges.
Patent GB-308163-A (GB)
Title: Improved interchangeable mounting device for the mixing tools of dough and like mixing machines
IPC: B01F15/00
Filed: 1928-10-22
Abstract: 308,163. Russell, R. oct. 22, 1928. Sockets.-In a mixing or kneading machine the stirrer is attached to the driving shaft by providing a sleeve b on the latter provided with a gap k and bifurcated feet h for engagement by a part l on the shank a sliding sleeve c locking the parts together. The part l on the shank d, to which is screwed the stirrer, is preferably cylindrical to mate with the gap k, and shoulders m are provided mating with flats f.
Patent GB-718248-A (GB)
Title: Improvements in or relating to cargo platforms
IPC: B65D19/00
Filed: 1952-12-01
Abstract: 718,248. Cargo pallets for hoisting loads. 'MARKUSSEN, M. Dec. 1, 1952, No. 30470/52. Class 78(4). A platform for lifting cargo has devices for engagement by lifting rods 10 or slings and comprising upper and lower hook members 3, 4 facing each other and spaced to form an open slot 5 through which a rod may be entered and guided so that the rod engages the upper hook member 3 when it is supporting the platform but is retained 'by the lower hook member 4 when the platform is supported independently of the rod. In the form illustrated the rod-engaging members are formed by cutting away portions of the four legs 2 of the platform i. The upper hook member 3 is wider than the lower hook member 4 which has an outer surface 8 adapted to guide the rod 10 into engagement with the hook member 3 as the rod is raised by lifting slings 11. The horizontal distance A between the inner edge of the tip 6 and a vertical extension of the tip 7 is preferably a little less than the radius of the rod 10 but the tips 6 and 7 may be vertically aligned. The distance between the ends of the tips 6 and 7 is preferably only slightly greater than the diameter of the rod 10. Each foot 2 comprises a hollow frustrum of a cone open at its upper end so that several such platforms may be stacked with the feet of an upper pallet received in the feet of a lower pallet.