baber/WOPTO huggingface dataset:
Patent GB-640213-A (GB)
Title: Improvements in recovery of chlorobenzene
IPC: C07C17/00
Filed: 1948-04-16
Abstract: Chlorobenzene is prepared from p-chlorobenzenesulphonic acid by hydrolysing with water at the boiling-point, which is above 200 DEG C., whereby the chlorobenzene and water are distilled off, condensed and separated, water being added during the hydrolysis to maintain the boiling point above 200 DEG  C.  The preferred temperature range is 220-240 DEG  C.  Sulphuric acid, which is formed during the hydrolysis, is in practice added initially to the extent of at least 1 per cent.  Two examples are given using a p-chlorobenzenesulphonic acid, sulphuric acid, and water mixture recovered from D.D.T. manufacture.
Patent GB-141910-A (GB)
Title: Improvements in clutches
IPC: F16D13/30
Filed: 1919-04-29
Abstract: 141,910. Stoney, M. P., and Flamand, P. April 29, 1919. Clutches, friction.-In Weston-type plate friction clutches, the plates are coned or dished and the clutch is operated by toggle mechanism of which the members are connected respectively to the clutch presser-plate and to a casing forming part of one of the clutch members. The driving or driven casing 5 has a conical friction surface 4 co-operating with a pressed steel or bronze ring 14 welded to a malleable-iron or cast-steel plate 13 sliding on the driven or driving shaft 1 and with plates 21, 22 sliding in the casing and also with plates 17 sliding on the plate 13, friction linings 23 being introduced. The clutch is operated by a spring-pressed sleeve 10 slidably keyed to the casing 5 and carrying links 25 operating toggle-links 27, 26 connected to the presser-plate 22 and to a stud 29 loose in a screw 30 adjustable in the casing to compensate for wear. Hardened pivot pins 28, 31, 32, 33 are used. The non-rotating operating-collar 35 carries a brake plate 40 for engagement with a plate 41 secured to the shaft 1 when the clutch is disengaged. In adapting the clutch for use with fly-wheels, the outer plates slide on bars secured in the fly-wheel web and a fly-wheel cover-plate. As shown in Fig. 4, the links 26 may be pivoted to a plate 60 adjustably screwed into the casing, the presser-plate 22<a> sliding on bars 62 projecting from the plate 60. The adjustable plate 60<a>, Fig. 5, may be engaged by the ends of bent levers 71, which carry the studs 33 on which the links 26 are pivoted. In a more compact form of the clutch, the clutch cones and the links 25 are arranged to slope in the directions opposite to those shown, and the pivot pins 32 move towards the shaft for clutch engagement.
Patent GB-137458-A (GB)
Title: Improvements in or relating to rifles
IPC: F41A9/60
Filed: 1919-04-29
Abstract: 137,458. Mehta, P. M. April 29, 1919. Breech actions, sliding breech-block. - Consists in slidably-mounting a receptacle B on the stock of a rifle by the side of the breech opening to collect empty cartridge cases as they are ejected. The receptacle may be made of wire-gauze reinforced at its edges by strips of sheet metal, or of leather, cloth, or other flexible material mounted on a collapsible wire frame. It is provided with a clip E adapted to be slidably secured in a socket on the stock A, a plate D for deflecting the cases as they are ejected, and a vertically sliding door C at its rear end for the removal of the accumulated cases.
Patent GB-1144013-A (GB)
Title: Fire-retardant coating
Inventor: WOLF MURRAY
IPC: D21H21/34
Filed: 1967-03-07
Abstract: 1,144,013. Wax-containing coating compositions. TRI-WALL CONTAINERS Inc. 7 March, 1967 [14 April, 1966], No. 10620/67. Headings C4A and C5W. [Also in Division B2] Fire-retardant coating compositions for cellulosic materials comprise a binder containing a major proportion of a hydrocarbon wax, and an intermescent agent. The latter may comprise hexamethylene tetramine plus a non-volatile heat-decomposable inorganic compound, particularly mono- or di-ammonium phosphate, monosodium phosphate, ammonium sulphate, ammonium sulphamate, or borax + boric acid in equal weight ratio. The wax is preferably microcrystalline, and of M.Pt 130-180‹ F. A vinyl polymer may constitute a minor proportion of the binder. Optional additives include dicyandiamide (additional gas-producing agent), clay and starch (pigments/fillers), alum (to improve the ash), and for aqueous dispersions, methyl or hydroxyethyl cellulose, sodium CMC, or sodium alginate (suspending agent). The composition is applied (i) as an aqueous dispersion (preferred) or (ii) as a melt and is preferably overcoated with wax as a melt or aqueous emulsion. Examples 1-10 disclose aqueous dispersions containing about 10% by wt. wax, Example 9 also containing about 3 % by wt. of a polyvinylidene chloride emulsion, and Example 10 being overcoated with an aqueous emulsion of a paraffin, wax, M.Pt. 130‹ C. Examples 11 and 12 disclose dry melts, 11 containing 45% by weight paraffin wax, and 12 containing 19% by wt. petroleium wax, 19% chlorinated diphenyl and 12% vinyl resin.
Patent GB-106960-A (GB)
IPC: B60G11/14
Abstract: 106,960. Adams, A. J. Jan. 18, 1917. Connexions and adjustments applicable generally for tensile and compressive springs. - Bearing- springs 19 for vehicles are arranged between thrust-plates 21, 24 carried by levers 11, 12, the plate 24 being adjustable by means of a screw 27 and nut 26.
Patent GB-1204257-A (GB)
Title: Improvements in or relating to the manufacture of synthesis-, hydrogenating-, or reduction-gas
IPC: C10B47/00
Filed: 1968-03-06
Abstract: 1,204,257. Coke oven gas. HUTTENWERK OBERHAUSEN A.G. 6 March, 1968 [11 March, 1967], No. 10788/68. Heading C5E, A crude gas adapted for the manufacture of a synthesis, reducing or hydrogenating gas is produced by coking coal in a coke oven chamber at a temperature above 1450‹ C. and/or a coking speed of more than 15 mm/hour such that the gas has a high content of H 2  and a low content of hydrocarbons. The coking speed is the speed at which the temperature in the coal bed travels from the walls of the chamber to the centre of the bed. The crude gas is purified by removing at least H 2 S and hydrocarbons, e.g. by cooling to produce a rich gas fraction from which the H 2 S is removed before using the fraction to heat the chamber.
Patent GB-957171-A (GB)
Title: Improvements in polarography
IPC: G01N27/48
Filed: 1960-03-26
Abstract: 957,171. Determining quantities of fluid mixture constituents. R. BRIGGS, and G. KNOWLES. June 9, 1961 [May 26, 1960; Dec. 16, 1960], Nos. 10793/60 and 43380/60. Heading G1N. Long term changes in the concentration of a selected substance in a fluid-e.g. oxygen in river water or industrial effluents-are determined by passing the fluid through a dropping mercury electrode polarograph cell across which a constant potential is applied, and feeding to the fluid before its passage through the cell an additive to maintain its conductivity above a predetermined value, whereby the drop in potential across the fluid between the electrodes is kept sufficiently small to maintain the accuracy of the calibration. The additive may be fed into the fluid continuously, and may be an aqueous solution of sodium chloride, together with a sodium salt of ethylenediamine tetra-acetic acid or sodium hexameta-phosphate to reduce deposition of calcium carbonate on the dropping electrode, and a detergent or sodium starch glycollate to eliminate current maxima at the measurement plateau; the additive may also contain potassium carbonate, chloride and nitrate, together with glycine, to maintain the pH between 7 and 8. 5, whereby heavy metals, e.g. copper, which would otherwise give a polarographic current, are precipitated. Quantitative analyses of suitable additive mixtures are given. The polarograph may have a silver/silver chloride reference electrode, and a current detector in the output circuit of the cell may control the input of oxygen into the fluid stream, to maintain the oxygen concentration at or above a given level. Application 18,861/60 and Specification 936,724 are referred to.
Patent GB-1347763-A (GB)
Title: Sintering cobalt-rare earth intermetallic product and process using solid sintering additive
IPC: C22C1/04
Filed: 1971-04-22
Abstract: 1347763 Cobalt - rare earth alloys GENERAL ELECTRIC CO 22 April 1971 [30 April 1970] 10875/71 Headings C7A, C7D A sintered product comprises at least 65% of Co 5 RE (RE being a rare earth, including Y) and up to 35% of a Co-RE phase richer in RE than the Co 5 RE. The product may be Co- Smmisch metal, Co - Ce - Pr, Co - Y - Pr or Co - Pr - mischmetal. The alloy may be produced by pressing and sintering a mixture of COs RE powder and a powder of a CO-RE alloy, richer in RE; both alloys being solid at the sintering temperature. The pressing may take place in a magnetic field. Sintering may be at 950 - 1200 C in an inert atmosphere.
Patent GB-364463-A (GB)
Title: Improvements in and relating to the production of highly etherified cellulose
IPC: C08B11/02
Filed: 1931-04-13
Abstract: A highly etherified cellulose (e.g. with an ethyl content of up to 50 per cent) is produced in a single stage reaction between cellulose, a dry alkali hydroxide, an indifferent organic liquid, and an ester of an inorganic acid, the reaction being carried out in the absence of water.  Suitable indifferent organic liquids mentioned are saturated and unsaturated hydrocarbons, alcohols, halogen compounds, and the like.  In an example, cotton or pulp is treated in an autoclave with finely divided caustic soda, ethyl chloride, and petroleum.  The product of the reaction, which is separated by diluting with benzine, centrifuging and washing with water, is soluble in benzene-alcohol and glacial acetic acid, and gives rise to films of good flexibility and transparency.  The Specification as open to inspection under Sect. 91 (3) (a) refers generally to the reaction between a carbohydrate, a dry metal hydroxide in suspension in an indifferent organic liquid, and an ester of an inorganic acid.  This subject-matter does not appear in the Specification as accepted.
Patent GB-485805-A (GB)
Title: Improved concentrated casein solutions having an acid reaction
Filed: 1937-04-16
Abstract: Concentrated solutions of casein having an acid reaction are produced by treating the casein with a weak solution of about 1/2500 of the amount of alkali that would convert the casein into caseinate.  In an example casein is moistened with a solution of caustic soda containing 0,1 parts per 10000, and the resulting mass is malaxated and suspended in water; it then dissolves to a solution of pH5.
Patent GB-1385039-A (GB)
Title: Photographic silver halide emulsions
IPC: G03C1/485
Filed: 1972-03-09
Abstract: 1385039 Photographic silver halide emulsion EASTMAN KODAK CO 9 March 1972 [10 March 1971] 10977/72 Heading G2C A photographic silver halide internal-image emulsion comprises grains which (i) are formed of a silver halide which comprises more than 50 mole % silver bromide, (ii) contain occluded metal dopants which provide internal sites for the deposition of photolytic silver, and (iii) are surface-sensitized to an extent such that the emulsion when tested by the procedure specified in the specification comprising development in a surface developer gives a (transmission) density of less than 0.4, the extent of sensitization being at least that which for the specified test procedure gives a density of 0.5 for an undoped silver halide emulsion of the same grain size and halide composition. The metal dopant may be a metal ion, atom or compound. The emulsion may contain a fogging agent such as a hydrazine or an N-substituted cyclammonium quaternary salt, e.g. formyl-4-methylphenylhydrazine or 2-methyl-3-[3-(p-sulphophenylhydrazono) propyl] - benzothiazolium bromide. The internal sites or the surface sensitization may be effected by gold and sulphur sensitizers. The emulsion may be used in a diffusion transfer film unit which is preferably for colour image production (see Ex 8 and 9). Direct-positive images may be obtained by imagewise exposing a layer of the above emulsion and (a) selectively surface fogging the unexposed grains and treating the layer with a surface developer to develop the surface-fogged grains, (b) treating the layer with a surface developer and exposing the layer overall to light during development to selectively fog the initially unexposed grains, (c) treating the layer with a solution of a fogging agent and treating the layer with a surface developer, or (d) where the material contains a fogging agent in the emulsion or a water-permeable layer adjacent thereto, treating the layer with a surface developer. According to this invention it is found that with internal image silver halide emulsions comprising more than 50 mole per cent silver bromide a controlled small amount of surface sensitization gives direct-positive images, of better quality. Reference is made to Specification 1151230.
Patent GB-578790-A (GB)
Title: Improvements in or relating to photographic shutters
IPC: G03B9/22
Filed: 1944-06-08
Abstract: 578,790. Photographic shutters and diaphragms. KODAK, Ltd. June 8, 1944, No. 10992. Convention date, June 30, 1943. [Class 98 (i)] The slot in a shutter casing through which extends a shutter or diaphragm actuating lever is covered in all positions.of the lever by a dust guard mounted to move with the lever. As shown in Fig. 1, the exposure lever 9 extends through a slot 3 in the wall 2 of the shutter casing 1 to a pivot 12 on the mechanism plate 13. Adjacent the slot, the wall 2 has a milled surface 18 of arcuate form, and the lever carries a dust-guard 19 of similar arcuate form which wipes over the surface 18, and is large enough to cover the slot 3 in all positions of the lever. In the form shown in Fig. 3, the exposure lever 30 pivoted at 29 passes through a slot 23.in the wall 21 of the shutter casing and also through an aperture 33 in an arcuate dust-guard 32 which wipes over the internal surface of the wall 21, and is held against this wall by a spring 34 encircling a pin 36 on the lever 30. A further form is described in which the shutter release and setting levers of a shutter mounted in a casing of rectangular section are each associated with a flat dustguard mounted and spring-held in a manner similar to that shown in Fig. 3. The invention may be applied also to levers for opening the leaves to permit focusing, or for actuating a delay-action mechanism for self-portraiture.
Patent GB-579260-A (GB)
Title: Improvements relating to pastry and the like cutters
IPC: A21C5/00
Filed: 1944-06-14
Abstract: 579,260. Pastry cutters. MULLER, E. R. June 14, 1944, No. 11359. [Class 5 (i)] A cutter for pastry or the like comprises four or five disc knives 1 mounted in symmetrical relation by nuts 13 on bushes 9 attached to a threaded spindle 5. A frame of rods 17 holds the knives together and is fixed by screw 21 to the spindle. Adjustment of the spacing of the knives can be made by releasing the frame 17 and then turning the handle 22. The threads are so arranged on the spindle that the knives remain equispaced as the spindle works in bushes 9. If five knives are mounted the centre is fixed at position 23.
Patent GB-1075583-A (GB)
Title: Improvements in machines for packing rod like articles e.g. cigars
Inventor: INGRAM FREDERICK KEITH
IPC: B65B19/26
Filed: 1965-03-18
Abstract: 1,075,583. Packaging machines. IMPERIAL TOBACCO CO. (OF GREAT BRITAIN AND IRELAND) Ltd. Feb. 22, 1966 [March 18, 1965], No. 11456/65. Heading B8C. A suction head 14 lifts a predetermined number of cigars &c. from a supply station and deposits them in a box 22 at a packing station 23. A vacuum-sensitive switch prevents delivery of the cigars if the suction head 14 fails to pick up the required number. In the embodiment shown, cigars are lifted five at a time from a continuous conveyer by the suction head 14, having first been stopped on the conveyer by a stop 21 carrying a microswitch 72. The bottom plate of the suction head 14 is slotted, Fig. 2 (not shown), with one slot for each cigar, the vacuum-sensitive switch closing when a cigar occupies each slot. The rear slot is wider than the others so that the vacuum switch is most sensitive to the presence of the final cigar. Boxes 22, Fig. 1A, are fed to the packing station 23 along a guide path comprising a rear guide rail (52), Fig. 1B (not shown), and a resiliently mounted front rail (50), by means of a pusher (41) which directs them from the bottom of a magazine (40). As shown the boxes have hinged lids which are opened fully by an air blower (44) after being raised slightly by flexible sucker pads 33, 34, Fig. 1A, on the end of shaft 13 carrying the suction head 14. A further unit on the shaft 13 (not shown) may transfer linings from a pile into the open box. Guide rails (45, 46) hold the lid open at the packing station 23, and the lid operates a microswitch 71 on a stop 70 to complete, with the vacuum switch and the switch 72, the control circuit to rotate shaft 11 to lift the suction head 14, carrying the five cigars, to a position over the packing station. The vacuum is then released and the cigars drop into the box. A reciprocating pusher 60 pushes the filled box from the packing station on to a conveyer 61, the rail 45 closing the lid. The rail 46 is mounted resiliently to enable the lid to be closed. If a lining has been introduced into the box, ploughs are provided to fold the liner down prior to closing the lid.
Patent GB-583194-A (GB)
Title: Improvements in or relating to stuffing boxes
IPC: F16J15/48
Filed: 1944-06-15
Abstract: 583,194. Stuffing-box substitutes. BELDAM, W. R., and BELDAM ASBESTOS CO., Ltd. June 15, 1944, No. 11461. [Class 122 (v)] In a stuffing-box of the type fitted with a neck-bush 2, Fig. 1, wherein packing rings 7 surrounding a shaft 3 and backed by resilient means are compressed axially and expanded radially by a gland 4, the backing is resilient sleeve-like lining 8, not of coiled form, in which the rings 7 may be inserted prior to compression. In a modification, the lining is of such length as to fit between the gland and the neck-bush. In a further modification, the lining terminates short of the bush 2, Fig. 3, and pressure fluid reaches spaces 8a in the lining via radial apertures 10 in an annular distance piece 11, and a space 9 to effect transverse expansion of the lining. Specifications 192,867, [Class 122 (v)], and 471,341 are referred to.
Patent GB-845943-A (GB)
Title: Stabilized phenothiazine preparations
Filed: 1958-04-10
Abstract: Light-stable phenothiazine preparations comprise a compound containing a phenothiazine nucleus and a stabilising agent comprising saccharin or a soluble saccharin salt e.g. Mg, Ca, alkali metal or ammonium salts, in an amount sufficient to render the phenothiazine nucleus compound substantially stable to light. The ratio by weight of phenothiazine compound to saccharin may be from 1:1 to 1000:1 and is advantageously 5:1 to 500:1.  The preparations may be in the form of simple mixtures of the essential ingredients and may contain other ingredients e.g. diluents or carriers and may be put up into suitable pharmaceutical forms e.g. tablets, capsules, injectable solutions which may additionally contain stabilizing agents e.g. ascorbic acid and sodium bisulphite, preservatives and buffers.  Examples are given of injectable compositions containing sodium saccharin and trifluoperazine dihydrochloride, prochlorperazine ethane disulphonate, chlorpromazine hydrochloride, trimeprazine tartrate, promazine hydrochloride, perphenazine dihydrochloride and acetylperphenazine dihydrochloride.  Other specified individual compounds are methotrimeprazine, meprazine, ethopropazine, methylpromazine, triphentizine (trifluopromazine), ethotrimeprazine, methopromazine, acetyl promazine and diethazine.  Specified derivatives are those variously having tranquilizing, antiemetic, sedative, antihistaminic, antispasmodic and anthelmintic activity and having the following general formula (and non-toxic addition salts thereof).  <FORM:0845943/VI/1> wherein X is a simple atom or group e.g. hydrogen, halogen, lower (1 to 6 carbon atoms) alkyl, alkoxy, alkanoyl, or alkylthio, carbalkoxy, di-lower alkyl sulphamyl, trifluoromethyl; A is a straight or branched lower alkylene chain separating the nitrogen atom and terminal group 2 by at least 2 carbon atoms; and Z is a basic terminal group e.g. di-lower-alkylamino or a 5 to 7-membered heterocyclic amino group.
Patent GB-573500-A (GB)
Title: Method for improving foods
IPC: A23J3/12
Filed: 1945-01-30
Abstract: Slaughterhouse blood plasma is sterile filtered before incorporation in food.  The plasma is preferably clear-filtered, e.g., by means of a Seitz Ariston filter, before it is passed to the sterile filter, preferably a Seitz Zenith filter with E. K. filterbeds; the filters, tanks, conduits &c. being initially sterilised by steam and cooled as by passing cold water through them.  The sterile-filtered plasma may be mixed with one or more, preferably sterile, modifying agents such as milk or milk products, flour, starch, sugar, fats or oils, emulsifiers such as mono-and di-glycerides and lecithin, and foam generating and stabilising agents such as linseed infusion or methyl cellulose, e.g., Tylose T.W.A.  In one example, a preparation for use as an egg substitute and in breadmaking is made by mixing 750 kgs. plasma with 250 kgs. sterile linseed infusion, prepared from 30 kgs. linseed, adding a sterile mixture of 3 kgs. benzoic acid or the methyl ester of paraoxybenzoic acid, 1 kg. yolk colour and 10 kgs. methyl cellulose, continuing stirring for a few hours and leaving the mixture overnight at room temperature before bottling. A modified product for use in making bread and cakes, in which the dough or batter has to be whipped, is obtained by including 500 kgs. of plasma and linseed infusion.  The products may be prepared in a dry state as by freezing, vacuum or spray drying or precipitation, e.g., with acetone or alcohol, and subsequently reliquified and sterile filtered.  In an example, a sterile mixture of plasma, linseed infusion and, if desired, other modifying ingredients is dried on rollers, drums or bands or, preferably, concentrated by vacuum evaporation and then spray dried.  The products may be packaged with a sterilising agent, such as benzoic or salicylic acid.  Meat-like products, such as forcemeat-balls, prepared from vegetable materials, preferably rich in proteins, are improved and prevented from disintegration in cooling by the addition of the plasma in liquid or more or less dried state.
Patent GB-233517-A (GB)
Title: Improvements in containers suitable for liquid polishes and the like
IPC: B65D47/26
Filed: 1925-02-09
Abstract: 233,517. Price, C. W. Feb. 9, 1925. Stoppers with valves; linings for stoppers.-An orifice 3 in a flanged lid applied to the end of a cylindrical container for liquid polish, powder or other material ir normallv closed bp a flap 4 turning about a rivet 5. To facilitate manipulation of the flap the edges are turned up to form wings 6, and the flap may be formed with slight downward protuberance adapted to engage the orifice. The underside of the lid may be coated with a layer 7 of wax sealing the orifice and adapted to be pierced thereat when the container is required to be used.
Patent GB-726600-A (GB)
Title: Collapsible container
IPC: A45C7/00
Filed: 1953-04-27
Abstract: 726,600. Boxes. SAMUEL, M. Jan. 29, 1954 [April 27, 1953 ; Oct. 2, 1953], Nos. 11516/53 and 27018/53. Class 18. A tray shaped box or lid has sides and ends hinged to the base by strips of flexible material, adjacent edges of the sides and ends being joined by flexible gussets. In one embodiment the sides and ends are held erect by straps 116 passing through eyelets 119 in the gussets and engaging buckles 120. In another embodiment each side and end comprises two halves 11-18 joined by flexible strip, which halves may be folded one on the other to produce a box having half the normal height. A box and lid formed according to the invention may be held in telescoped relation by girth straps supporting a handle, for use as a suit case.