baber/WOPTO huggingface dataset:
Patent GB-471833-A (GB)
Title: Improvements in or relating to the manufacture and treatment of cellulose derivatives
IPC: C08B15/00
Filed: 1936-11-11
Abstract: Cellulose ethers or secondary cellulose esters are treated while in solution with agents containing or capable of readily liberating free chlorine, the conditions of treatment being such that no substantial combination of chlorine with the cellulose derivative takes place. Impurities in the cellulose derivative which have a corrosive action on metals are removed or rendered harmless by the treatment.  The reagent employed may be chlorine gas, chlorine water, or a hypochlorite of sodium, potassium, calcium, or magnesium.  Secondary cellulose acetate dissolved in its hydrolyzing solution may be treated with alkali carbonate or acetate to neutralize the catalyst. Hypochlorite solution may be added before or after addition of the alkali salt.  The treatment with chlorine or hypochlorite may be carried out at low or raised temperature.  In an example, an acetylation solution containing cellulose acetate, acetic anhydride, acetic acid, and sulphuric acid is ripened until the cellulose ester has the desired solubility.  The catalyst is neutralized with sodium acetate and then a solution of calcium hypochlorite is added.  The solution is stirred and then the cellulose acetate is precipitated by addition of water.  The product may be further treated with a bleaching agent such as hypochlorite or hydrogen peroxide, and may be given an anti-chlor treatment with borax solution.  The products may be employed in the production of filaments, films, moulding powders, plastic masses, lacquers, blocks, tubes, and rods.  Ethyl, methyl, and benzyl cellulose, and secondary cellulose formate, acetate, propionate and butyrate may be treated.  Specification 341,890 is referred to.  The Specification as open to inspection under Sect. 91 refers also to the treatment of cellulose nitrate, and cellulose derivatives in general.  This subject-matter does not appear in the Specification as accepted.
Patent GB-168268-A (GB)
Title: Improvements in or relating to football boots
IPC: A43B5/02
Filed: 1920-11-01
Abstract: 168,268. Hartopp, J. J. Nov. 1, 1920. Athletic boots; stiffeners.-The toe of a football boot is reinforced with a powdered cement-like material, such as dental plaster or parian cement, which is applied in the form of a paste, without the use of either heat or softening-reagents, and allowed to set hard. As shown, the reinforcing- material d is applied to the inner surface of the blank b before it is blocked to shape, and a moulded fibrous layer e, the lower portion of which constitutes an integral puff f, is inserted between the lining c and the reinforcing-layer d. The boot is lasted while the paste is still damp, and finished in the usual manner when the toe is dry.
Patent GB-1441464-A (GB)
Title: Movable access ramp for vehicles
IPC: E01D101/00
Filed: 1973-06-28
Abstract: 1441464 Ship loading ramp MACGREGOR-COMARAIN SA 28 June 1973 [28 June 1972 29 May 1973] 30829/73 Heading B8E [Also in Division B7] A two or more section loading ramp 4a-4c of a ferry or like ship 1 is pivoted thereto at 6 and has its parts pivoted together at 5, 5<SP>1</SP>. It is raised from the extended operative position, Fig. 1, to close the cargo port 30 by cables 8 passing over pulleys 12 on king posts 13, 13<SP>1</SP> to winches 10, 10<SP>1</SP>. Handling cables 15, 151 pass from fixed points 14a, 14b on the innermost section 4a over pulleys 14, 14<SP>1</SP> and auxiliary pulleys 19, 19<SP>1</SP> on outriggers 23, 231 of the intermediate section 4b to fixed points 18, 18<SP>1</SP> on the king posts 13, 13<SP>1</SP> with an interposed tightening device 17, 17<SP>1</SP>. In the raised position the cables 15, 15<SP>1</SP> allow the sections 4b, 4c to fold down behind the section 4a, Fig. 3, in which position the ramp is held, by a locking arrangement 42, against buffers 41. To lower the ramp movement is initiated by a ram 24, Fig. 3, and continues under gravity the sections 4a-4c moving together until the cables 15, 15<SP>1</SP> tighten to straighten the sections before they contact the quay. Other forms of attachment for the cables 15, 151 on the ship are described including counterweights, hydraulic or spring actuated rams and constant tension winches. In a modified construction, Fig. 17, a counterweight 31 is employed which moves from A1-A2 as the folded ramp moves initially from B1-B2 and then engages a stop 34 so that the cables 15, 15<SP>1</SP> are tensioned to extend the section 4b until a position B3 or B4 is reached according to the relative height of the quay 2 in which position the weight 31 in position A3 or A4 counterweight the outer sections. Detectors 21, 22, Fig. 15 may be provided to detect alteration in the inclination of the sections 4a, 4b and so to operate the winches 10, 10<SP>1</SP> as to restore the position and to prevent excessive pressure on the quay 2. Where a third ramp section 4c is provided pivoted at 5<SP>1</SP> to the intermediate section 4b its extension may be effected and controlled by a ram 26, Fig. 3, or the handling cables may be extended from a pulley 25, Fig. 15, on the intermediate section 4b to be fixed to the outer section 4c at 20 so that tightening of the cables 15, 15<SP>1</SP> also extends the outer section 4c.
Patent GB-152620-A (GB)
Title: Improvements in or relating to means for securing tubes to tube plates in heat exchanging devices and the like
IPC: F22B37/10
Filed: 1919-12-09
Abstract: 152,620. Schweizerische Stellwerkfabrik. Oct. 15, 1919, [Convention date]. Tubes with devices for restricting flow of liquids.-In joining tubes to plates in heat-exchanging devices such as coolers and steam generators, a nipple 2. Fig. 3, having a tapered screw-thread is screwed into the plate 1<1>, and the tube end 6, which is conically reduced in section, is inserted in a groove in the nipple, and the inner end 3 of the nipple is expanded behind the conical end of the tube. The shape of the inner wall of the nipple is such as to ensure an action on the entering fluid like that of a De Laval expansion nozzle. The nipple has slots 5 for the reception of a spanner, or helically-shaped blades 7, Fig. 5, sprung into position. The blades 7 produce a rotary motion in the fluid passing through the tube. Nipples of different internal diameters may be used to vary the rate of flow so that liquid passes through the tube in accordance with the temperature inside the cooler &c.
Patent GB-746874-A (GB)
Title: Improvements in or relating to apparatus for the direct determination of a perspective view from two projections of an object in planes at right angles to each other
IPC: B43L13/14
Filed: 1953-11-09
Abstract: 746,874. Perspective drawing instruments. NEGRE, R. J. L. Nov. 9, 1953, No. 30994/53. Class 97 (3). Apparatus for drawing a perspective view from two mutually perpendicular projections of an object, e.g. a plan and an elevation, mechanically, comprises a carriage 4 slidable along a guide 1 and constrained to move so that its displacements are functions of the angular displacements of a line scanning the plan or elevation about a fixed viewing centre 2. The carriage 4 extends to form a guide 5 for a sliding cursor 6 having an index 14 the point of which, located on an appropriate curve on a chart 17, positions the cursor on the guide 5. Preferably, a pivoted transparent blade 3 is provided and connected to an arm 7, rigidly mounted on guide 5, by a pin 8 engaging a slot 3a. The chart 17 may be cylindrical and mounted in a transparent cylinder 11 and is marked with a set of curves. Those points on the object which lie in a plane parallel to a horizontal reference plane are all located in the perspective view by one curve. M<SP>1</SP> in the plan S' of a cube is made coincident with the centre line of the bar 3 by moving the carriage 4, the cylinder 11 is then turned by the grip 12 until the fixed index 13 indicates the distance r on a scale at the foot of chart 17. Finally the cursor index point is moved to coincide with the curve which has previously been used for the other base points of the cube. The correct position of the point in the perspective view is given by the corner of the base of the cursor. The elevation S<SP>2</SP> of the cube is used to obtain the correct distance h from the horizontal reference plane P<SP>2</SP> so as to select the correct curve on the chart. The reference plane p<SP>2</SP> in the elevation remains a straight line P in the perspective view since it is in the line of sight. A pair of dividers having an angular scale may be used to determine the position of the viewing point 2.
Patent GB-919365-A (GB)
Title: Improvements in or relating to cardboard and the like boxes and box lids
IPC: B65D5/20
Filed: 1960-09-09
Abstract: 919,365. Picture frames. FIELD, SONS & CO. Ltd., and HOLDSWORTH, K. May 17, 1961 [Sept. 9, 1960], No. 31051/60. Class 11. [Also in Group XVII] A cardboard or the like carton lid has an opening cut therein to form a picture frame. The lid comprises a panel 10 with walls along each edge thereof of double thickness, each formed of two strip-like wall panels 12, 13, 21, 22, Fig. 1, hinged to one another and to the lid panel and folded one upon the other, with two further strip-like panels 14, 15, 23, 24 hinged to each of the outermost wall panels, of which the first 14, 23 are folded above the lid panel and the second 15, 24 are folded between the first and the lid panel. Tabs 25 are inserted between panels 12, 13 to hold together adjacent ends of the lid walls. Self adhesive is applied to the upper face of the blank where shaded and also to the underfaces of parts 15, 24, 25. Panels 13 and 22 are deeper than panels 12 and 21, so that panels 14 and 23 incline downwardly from their outer edges inwardly to the lid panel 10, Fig. 3.
Patent GB-657143-A (GB)
Title: Improvements in and relating to bar gripping chucks
IPC: B23B31/12
Filed: 1948-11-30
Abstract: 657,143. Chucks. CAUCHOIS, A. Nov. 30, 1948, No. 31071. Convention date, Dec. 24, 1947. [Class 83 (iii)] A chuck comprises flat jaws 13 slidable in slots in a bi-conical ring 14 provided with shoulders 15, 16, the outer ends of the jaws each being provided with conical chamfers 11, 12, abutting respectively against the conical surface of a fixed cap 4 and against the conical surface of a ring 8 which is moved towards the fixed cap by means of a screw-threaded ring 18 which is rotated by means of toothed gearing 20, 21. The inner ends of the jaws are each provided with recesses 26, 27 in which are accommodated resilient rings 28, 29 which lie in recesses 30, 31 provided in the ring 14. In a modification, each slot in the ring 14 is divided into two parts and each jaw is forked, a spring abutting against the crutch of the fork of each jaw and against a part of the bi-conical ring between the two parts of a slot.
Patent GB-441035-A (GB)
Title: Automatic feeding apparatus for fibrous materials
IPC: G01G23/18
Filed: 1934-10-31
Abstract: 441,035. Weighing and feeding fibrous materials. TATHAM, Ltd., W., Belfield Works, and THORNTON, H., 911, Oldham Road, both in Rochdale. Oct. 31, 1934, No. 31168. [Class 143] Relates to automatic feeding - apparatus for delivering weighed quantities of fibrous material for the production of condenser yarn, coiled sliver, wadding, &c., and comprises means for giving warning, preferably audible, when the weighs are underweight, such means comprising a draw-bar connected to a camlever mechanism, a catch in connection with clutch-operating means, and a settable and releasable device with which is combined a frame with alarm-sounding device actuated when requisite by a cam and a friction wheel. In the normal operation of the apparatus when the requisite weight has entered the scale pan, the balance arms 8a rock and permit a clutch-controlling lever 4 to escape from a superposed pin 6. A vertical rod 9 falls and disengages a clutch C and stops the usual spiked conveying lattice in the feed hopper. The scale pan flaps are then opened to discharge the weigh by a depression 2 in a cam 1, and are closed by a cam projection 3. If the weigh is short when the scale pan flaps are due to open, the balance arms 8a fail to rock and the vertical rod 9 remains in its upper position. In this position a pawl 16 on the vertical rod is situated too high to obstruct a clip 15 on the draw-bar 14, and a weighted lever 10 connected to the draw-bar is permitted by the cam recess 2 to move the drawbar to the left and allow a triangular lever 25 mounted on a pivot 26, to drop. A friction wheel 31 on the triangular lever falls into engagement with a driving belt 33 and causes a cam to vibrate a spring clapper 30 against a bell 27.
Patent GB-795695-A (GB)
Title: Improvements relating to load handling trucks
Inventor: KNIGHTS ROBERT EDGAR
IPC: B66F9/08
Filed: 1955-11-01
Abstract: 795,695. Lift trucks. DIAC, Ltd. Nov. 1, 1956 [Nov. 1, 1955], No. 31209/55. Class 78 (3). In a masted lift truck the lifting carriage 20 is moved by a three-section telescopic hydraulic ram A, B, C which is supported at its lower end on a ball joint 11 and, in its length, by the carriage, the arrangement being such that the ram is capable of limited movement relative to the mast. The carriage 20 is guided by rollers 22 on a telescopic mast 17, 18 and is connected through a ball joint 16 to a sleeve 15 which is free to slide on upper ram section C. The carriage is supported by chains 14a which are anchored on lugs 12 secured to the ram centre section B and which pass over pulleys 14 on the upper section C. In operation, during extension of section C to a position in which the ram head 13 engages cross member 19 sleeve 15 slides to the top of section C, whereafter further extension of the ram raises the carriage and guides 18 together to the position shown in Fig. 3A.
Patent GB-1222731-A (GB)
Title: Vibrator device
Inventor: BYSAKH BIRESWAR
IPC: A61F5/41
Filed: 1968-07-01
Abstract: 1,222,731. Surgical vibrators. B. BYSAKH. 12 Dec., 1968 [1 July, 1968], No. 31237/68. Heading A5R. A vibratory device for use during intercourse comprises an applicator member A having a tapering annular part K and a flange F, the applicator member being connected by a transmission shaft S to a vibration producing power unit P whereby, when the applicator member is fitted over the penis during intercourse, vibrations are transmitted to the female genital organs. As shown, the applicator member is of a resilient material with a reinforcement J, there being lugs L on the member to a chosen one of which is secured the transmission shaft S. The applicator member may be formed with a cut-out portion N for the urethral duct and with a split W so that it may be removed from the penis during the intercourse.
Patent GB-618118-A (GB)
Title: Improvements in electric cartridge fuses
IPC: F42B3/195
Filed: 1946-10-22
Abstract: 618,118. Making fuse elements. CRABTREE & CO., Ltd., J. A., CRABTREE, J. A., and CARDING, J. T. Oct. 22, 1946, No. 31327. [Classes 83 (ii) and 83 (iv)] [Also in Group XXXVI] Soldering.-An element a for a cartridge fuse (see Group XXXVI) is blanked out from a silver sheet to which solder is applied in the form of a strip or tape c. The sheet and strip are unwound from rolls, brought into contact over a heated table and pressed together by rollers, a non-corrosive flux such as a resin in alcohol solution being applied to the strip. A temperature control is imposed to prevent spread of the solder which may be a lead-tin or cadmium-tin alloy.
Patent GB-1036147-A (GB)
Title: Hardenable synthetic resin compositions and their preparation
Inventor: SIMMONS PAUL
IPC: C08F279/02
Filed: 1963-08-08
Abstract: A hardened composition is prepared by taking a rubbery homopolymer or copolymer of butadiene containing more than 50% by weight butadiene that has been prepared by solution polymerization in the presence of a lithium alkyl catalyst and the butadiene of the polymer having a high 1,4-structure but less than 70% cis-1,4 and less than 10% 1,2-structure, dissolving it in a vinyl monomer or a mixture of vinyl monomers and reacting the resulting solution in the presence of a free radical catalyst. Base polymers exemplified are polybutadiene and a copolymer of butadiene and 0.1% divinyl benzene.  Vinyl monomers exemplified are styrene, vinyl toluene, and a mixture of styrene and divinyl benzene.  The catalyst used is benzoyl peroxide.
Patent GB-712823-A (GB)
Title: Improvements in or relating to a method for producing powders by atomization, and apparatus for carrying out the method
IPC: B01D1/18
Filed: 1950-12-28
Abstract: <PICT:0712823/III/1> <PICT:0712823/III/2> Liquids, e.g. milk, to be spray dried are centrifuged prior to their atomization in a drying chamber to reduce their air content whereby the air content of the powdered product is considerably reduced.  In Fig. 1, liquid is fed via a pipe 15 into a rotating atomizer having chambers 7, 8 and 9 where air is centrifuged out and escapes or is sucked out through a space between a cover 6 and a screen 16.  Liquid from chamber 9 flows up vanes formed by recesses 5 in a vane-wheel 4 and is projected into a drying chamber (not shown) from the extreme edges of the vanes in an atomized state.  Intermediate links may be inserted between the chamber 9 and the vanes of the atomizer such as liquid distribution means for obtaining a finer atomization.  In Fig. 2, liquid is fed into the central aperture 21 of a rotating disc 20 which has a number of non-radial channels 23 extending from the central aperture to the periphery and is covered by a cover plate (not shown).  Liquid flows as a film along the lagging walls of the channels 23 and air is forced out by buoyancy.  Liquid is projected from the ends of the channels into a drying chamber (not shown) either directly or through another atomizer.  The channels 5 of Fig. 1 may be shaped like the channels 23 in Fig. 2.
Patent GB-324697-A (GB)
Title: Improvements in or relating to the reproduction of sound in association with picture projection
IPC: G03B31/00
Filed: 1928-10-30
Abstract: 324,697. Koch, R. von. Oct. 30, 1928. Sound-reproducing apparatus associated with kinematographs.-In the reproduction of sounds and pictures from films, an auxiliary sound film is provided to reproduce special sounds, the apparatus being arranged to permit reproduction from either of the sound films. As shown in Fig. 1, the main sound film 5 is guided over rolls 6 driven from the picture projector 3 and is reproduced by a beam from a lamp 8 directed through the film and an optical system 9 on to a selenium cell 10. The auxiliary sound film 18 is guided over a roll 16, and when it is desired to reproduce from this film, a clutch 19 is moved so that the roll 16 is driven and the lamp 8, optical system 9, and cell 10 are swung round to the dotted positions 8<1>, 9<1>, 10<1>. In a modification, the clutch 19 is dispensed with and the auxiliary film is driven by closure of its film gate which causes a guide-roll thereon to press the film against a driven roll. Further, the lamp 8, optical system 9, and cell 10, may be duplicated and the necessary lamp switched in according to the film to be reproduced.
Patent GB-872093-A (GB)
Title: Improvements in curl clips and in the manufacture of such clips
Inventor: CURRY FRANCIS JOSEPH
IPC: A45D8/20
Filed: 1958-10-03
Abstract: 872,093. Hair curl clips. LAUGHTON & SONS Ltd. Sept. 18, 1959 [Oct. 3, 1958], No. 31584/58. Class 131. [Also in Group XXV] In a hair curl clip of the kind comprising two pivotally connected metal components, each consisting of a hair-holding part a and an integral handle b, c urged by a spring into hair-holding position, the components are formed as identical pressings or stampings with spaced, cranked, incisions g, h providing a bowed, central part k and side portions with opposing lugs l. On assembly of the clip the spring d is enclosed by the parts k, the end coils being located on the lugs 1 and the free ends e, f of the spring engaging the handles. Each member is formed with a slot n and tongue m for interengagement. In modifications a plurality of meshing or overlying hairholding parts are provided and the parts of the incisions not involved in the formation of the lugs are not parallel.
Patent GB-682689-A (GB)
Title: Improvements in or relating to a process of preparing a copolymer of vinylidene chloride and acrylonitrile and in or relating to moistureproof sheet wrapping materials prepared therefrom
Inventor: BERRY WILLIAM
IPC: C08J7/048
Filed: 1949-12-08
Abstract: A mixture of from 80-92 per cent of vinylidene chloride and from 20-8 per cent acrylonitrile is polymerized in aqueous emulsion or by granular, bulk or solution methods to form a copolymer suitable for making moisture-proof film.  Catalysts, e.g. benzoyl peroxide, or ammonium persulphate with sodium metabisulphite as activator; dispersing agents, e.g. ammonium octadecyl sulphate, sodium cetyl sulphate and sodium octadecenyl sulphate; and stabilizers, e.g. dodecyl toluene sulphonic acid may be used, the reaction being promoted by heat or light.  A self-supporting film may be prepared from an aqueous emulsion by depositing on an oppositely charged nickel sheet, drying, stripping and consolidating by heat. Specifications 629,137, 663,645, [Group VIII], 669,907 and 680,709 are referred to.
Patent GB-269105-A (GB)
Title: Improved process and arrangement for manufacturing a soldered or brazed joint
IPC: B23K1/20
Filed: 1926-12-14
Abstract: 269,105. Schmitt, J.. and Victoria- Werke Akt.-Ges. Dec. 14, 1926. Joints formed by molten metal.- Tubular parts, such as parts of cycle frames are brazed or soldered by inserting one in the other so as to form a closed chamber in which the solder is melted and forced into the joint by the vapours generated during melting. A tube 3 with a cap 4 is placed over the reduced closed end 2 of a second tube 1 to form a chamber 6 in which the solder ring 5 is melted and forced into the joint. In Fig. 2, a tube containing two caps 4, 4<1> and lateral slots 7 to form a. solder chamber is placed in the connection 1 and the molten solder is forced through the slots 7 into the joint. In a further modification a tube is soldered to the reduced end of a connection in the manner similar to that shown in Fig. 1. The closed end may be replaced by an open end containing a cap. The tubular parts may contain solid or hollow pieces previously secured therein.
Patent GB-675661-A (GB)
Title: Improvements in the extraction of oil from fish-liver
IPC: C11B1/00
Filed: 1948-12-09
Abstract: Oils are extracted from fish livers by mechanically treating the livers, at a temperature below the coagulation temperature of the cytoplasm, so as to produce an unstable emulsion of cytoplasm in a continuous liver-oil phase, and separating the oil from the emulsion. If necessary, liver oil or products containing it may be added before or during the treatment, to ensure the presence of sufficient oil to form the continuous phase.  A little water may also be added, to reduce the viscosity of the mixture. The mechanical treatment is preferably effected at a temperature between the coagulation temperatures of the cell walls and the cytoplasm respectively; treatment at 45-50 DEG C. is suitable.  The separation of the oil from the emulsion may be effected by centrifuging, or the emulsion may be heated, e.g. 70-80 DEG C. to coagulate the cytoplasm and then either centrifuged or allowed to stand, optionally after addition of water or a salt solution. Specifications 314,505, [Class 91], and 553,501 are referred to.