baber/WOPTO huggingface dataset:
Patent GB-312539-A (GB)
Title: Improvements relating to automatic fabric guiders
IPC: D06C3/00
Filed: 1928-07-18
Abstract: 312,539. Foxwell, D. July 18, 1928. Feeding webs.-In automatic fabric guiders of the kind in which compressed-air operated devices are provided to guide the web laterally, the compressed air is supplied from a compressor driven by a roller over which the fabric passes and which is driven frictionally by the fabric. The web passes between the guide devices 3 and round guide rollers 19, 4. Each guiding device 3 comprises a pair of inclined rollers which normally grip the fabric by means of compressed air but are caused to release the fabric when the air is shut off by the action of a feeler engaging the edge of the fabric. Compressed air is supplied to the devices 3 by pipes 16 and 13 from a compressor 9 driven at high speed by a chain 12 from a sprocket 11 on the shaft of the guide roller 4 which is driven by the fabric.
Patent GB-792544-A (GB)
Title: Therapeutic composition
IPC: A61K47/32
Filed: 1956-07-05
Abstract: Therapeutic compositions for the treatment of tropical phagedenic ulcers and infected wounds comprise (a) an antibiotic component active against gram-positive and gram-negative organisms consisting of reomycin and polymixin B, or reomycin and bacitracin, or reomycin, polymixin B and bacitracin; (b) a proteolytic enzyme component comprising hyaluronidase and trypsin or chymotrypsin; and (c) a film-forming agent as a carrier, e.g. polyvinyl pyrrolidone or dextran.  The compositions which are preferably used in the form of dry, free-flowing dusting powders should contain less than 2 per cent of moisture, and in the method of preparation steps are taken to ensure this low moisture content.  In a preferred method, the antibiotic component and the trypsin or chymotrypsin are dried preferably to a moisture content of about 0.5 per cent, the hyaluronidase and polyvinyl pyrrolidone are dissolved in water and the solution lyophilized to a substantially anhydrous powder and said powder is mixed with the antibiotic and enzyme mixture.  In this way, a thorough distribution of the hyaluronidase throughout the mixture is ensured also.  In one gm. of the composition there are: from 3.5 to 25 mg of reomycin, 1,000 to 10,000 units of polymixin, 50 to 3,000 units of bacitracin, 12 to 200 turbidity; reducing units of hyaluronidase and 4 to 500 mg. of trypsin or chymotrypsin, and the remainder is made of of polyvinyl pyrrolidone or dextran.
Patent GB-747631-A (GB)
Title: Indicators for fire extinguishers
IPC: A62C13/00
Filed: 1953-07-28
Abstract: 747,631. Fire-extinguishing. JONES &. CO. (ENGINEERING), Ltd., S., and PHILLIPS, C. H. June 23, 1954 [July 28, 1953], No. 20950/53. Class 47 Means for indicating whether a CO 2  gas type fire extinguisher has been discharged comprises a thin disc 13 of metal foil which is pierced by a pointed end 10 of a piston 9 mounted in a nozzle fitting 3 so as to be subjected to the pressure of the gas as it passes to the discharge nozzle.
Patent GB-636764-A (GB)
Title: Improvements in meshing-screw pumps or engines
IPC: F01C1/16
Filed: 1947-08-01
Abstract: 636,764. Meshing - screw pumps or engines. WHITFIELD, J. E. Aug. 1, 1947, No. 20953. Convention date, May 11, 1943. [Class 110(ii)] The pump or engine has male and female rotors 32, 30, provided with running clearance with the walls of the casing 20, and inlet and outlet ports diagonally disposed with respect to one another in the casing, the edges of each port opening matching the remote crest edges of the threads of the rotors. These edges meet to form an apex at the adjacent intersection of the cylindrical chambers 23, 24, and each pocket formed by meshing threads is sealed by the wall of the casing at one port opening at the same instant that the pocket is opened to the other port opening. The initial opening of an outlet port (for a pump) may be by way of a channel such as 58, 62 or 68, the cross-sectional areas of which may be fixed or variable. This channel prevents the sudden evening out of pressures and consequent noise caused when a pocket is opened to discharge all at once. The male rotor has a pitch circle of diameter less than the root diameter and the female rotor a pitch circle which is greater than its outside diameter. The sides of the male threads are shaped by helical surfaces generated by the crest edges of the threads of the female rotor. Fig. 1 shows one construction with gears 36, 37, of 2:1 ratio coupling the rotor shafts 31, 29. Vents 34 lead from fluid seals 35, around the shafts, to the atmosphere to prevent any intercommunication between the fluid in the working chamber and the bearing lubricating system. The inlet port is defined by a recess 43, in an end wall 22, and dotted lines 44, 46, 45 connected with an opening 42. The outlet port connected to an opening 50 comprises a recess 51, in an end wall 21, and boundaries 52, 53, 55, 54. To prevent power loss and noise due to sudden discharge of fluid from a pumping space, a connecting channel 58, Fig. 1, is formed by cutting away a portion of the intersection on the casing, at a cusp formed by the rotor bores to make an initial opening to the outlet port from the pumping chamber. The channel may be tapered or, as shown in Fig. 8, may be replaced by a shutter 63, triangular in shape. The shutter may be adjusted to any position and secured by set screws 65. Alternatively a slot 66, Fig. 9 (not shown), may be cut in the casing wall to form a continuation of the final port lines 56, 57, especially where dense liquids are pumped or fluids are pumped at high speed. Fig. 12 shows another device in which a plug 67 may be adjusted to open a channel. A further arrangement has a rotary valve in the channel, with a segmental piece cut out of it. The valve may be tapered. More than two rotors may be used in the pump or engine. Specifications 558,740 and 636,417, [Group XXIV], are referred to.
Patent GB-775434-A (GB)
Title: Improvements in profile milling cutters
IPC: B23C5/14
Filed: 1954-07-19
Abstract: 775,434. Milling - cutters. DUBOIS, M. A. July 19, 1954 [Sept. 23, 1953], Nn. 20973/54. Class 83 (3). A milling-cutter comprises an even number of integral teeth, alternate teeth having faces inclined towards opposite sides of the cutter and the teeth having curved cutting-edges 16 at their tips running into straight radial edges 15. The straight edges 15 are sharpened in an axial direction and the curved edges 16 in a radial direction. Sharpening thus reduces the width and height of each tooth.
Patent GB-227414-A (GB)
Title: Improvements in cigarette-making machines
IPC: A24C5/02
Filed: 1924-09-05
Abstract: 227,414. Universelle Cigarettenmaschinen-Fabrik J. C. M³ller & Co. Jan. 11, 1924, [Convention date]. Cigarette-making machines.-In machines in which paper shells are transferred in turn by a flange b from a drum T to a scoop c and are there filled with tobacco, a finger m is actuated at the end of the forward stroke of the plunger to engage the completed cigarette and remove it from the scoop c. The finger m is adjustably connected to a bell-crank lever n pivoted to a slide a carrying the plunger b. The lever n is rocked by a slotted link o having a stud r engaging a cam-groove s on the front face of a rotating disc e. The slot p in the link o engages a slideblock q loose on the shaft d. The slide a is reciprocated by a lever f having a stud g engaging a cam-groove on the back face of the disc e.
Patent GB-597835-A (GB)
Title: Improvements in the preparation of etherified rydroxy nitroanilines
Filed: 1945-08-17
Abstract: 2-RO-5-nitroanilines, occasionally with 2-RO-4-nitroanilines, wherein O is an oxygen atom and R is an alkyl, alkenyl, aralkyl or aralkenyl group containing at least three carbon atoms, are prepared by mono-nitrating a 2-RO-aniline (which may contain methyl groups in the 3-, 4- or 6-positions), or an N-acylated derivative thereof, with, for example, nitric acid either alone, with strong sulphuric and/or glacial acetic acid or in ethereal solution with acetic anhydride, and if necessary hydrolysing the acrylamino group.  The mixture of acylated 2-RO-nitroanilines may be separated by hydrolysing the 2-RO-4-nitroacylaniline in a solution of absolute alcohol in the presence of an alcoholate as catalyst and dissolving it in a dilute mineral acid, the 2-RO-5-nitroacylaniline being recovered from the precipitate by saponification.  The acyl group may be an acetyl, benzoyl, carbethoxyl, or toluene sulphonyl group.  In examples: (1) 2-n-propyloxyacetanilide is treated with nitric acid to produce the 4- and 5-nitroacetanilides, from which the corresponding nitranilines are separated by selective saponification as above, using sodium propylate in propanol; (2) as in (1) with benzyloxyinstead of n-propyloxy; (3) the crude product of (1) is hydrolysed with dilute hydrochloric acid, when 2-n-propyloxy-4-nitroaniline separates from the solution on exact neutralization and 2-n-propyloxy-5-nitroaniline is obtained by making the filtrate alkaline; (4) and (5) 2-n-propyloxy-acetanilide is treated with nitric acid in strong sulphuric acid and glacial acetic acid and 2-n-propyloxy-5-nitroaniline is obtained by (4) recrystallization from propanol and hydrolysis, and (5) hydrolyses with dilute hydrochloric acid and recrystallization of the hydrochloride; (6) 2-n-propyloxy aniline was nitrated as in (4) and the 2-n-propyloxy-5-nitroaniline purified by recrystallization from propanol and petroleum ether; (7) as in (6) with n-butyloxyinstead of n-propyloxy-; (8) the product of (6) was acetylated and pure 2-n-propyloxy-5-nitroacetanilide was obtained by recrystallization from propanol.  Specification 594,816 is referred to.  Samples have been furnished under Sect. 2 (5) of products prepared by nitrating 2-allyloxy-acetanilide and working up as in example (3) above to produce (A) 2-allyloxy-4-nitroaniline and (B) 2-allyloxy-5-nitroaniline.  The Specification as open to inspection under Sect. 91 comprises also the cases where R is unlimited as regards the number of carbon atoms therein and may also be aryl, and refers to substituents other than methyl in the 3-, 4-and 6-positions.  This subject-matter does not appear in the Specification as accepted.
Patent GB-738500-A (GB)
Title: Methods or processes of extracting a solute from a solution
Inventor: HALE DOUGLAS KNIGHT
IPC: B01D11/04
Filed: 1952-08-21
Abstract: In a method of extracting a solute from a solution of it in one solvent by contacting the solution with a second solvent in which the solute is also soluble and which is immiscible or very nearly so with the first solvent, the second or extracting solvent is absorbed by beads, granules or like particles of a synthetic organic high polymer, e.g. a cross-linked polymer insoluble in all ordinary solvents such as a cross-linked polystyrene which neither solvent will dissolve, but which is swollen by the second or extracting solvent.  The extracting solvent may be modified by the addition of a reagent, e.g. carboxylic acids, amines, having negligibly low solubility in the first solvent, and which renders the extracting agent specific or selective with respect to a solute or solutes present in the solution to be treated.  The absorption of the extracting solvent, with or without the addition of special reagents, by the synthetic polymer which may be packed into a tower either previously or subsequently to the absorption, may be effected previously to passing the solution through the packed tower or the extracting solvent, with or without the addition of a special reagent, may be mixed with the solution which is then passed through the packed tower.  Alternatively, the special reagent may be added to the solution which is then passed through the bed of the polymer containing the absorbed extracting solvent or the solution is contacted with the extracting solvent with or without special reagent added and then the polymer is added and allowed to absorb the extracting solvent, together with the extracted solute.  The solution to be extracted may have a complex-forming reagent added thereto to solubilize the desired solute and may further be prepared by the addition of a buffer to adjust the pH to the optimal value for the section of a particular solute or solutes, or by the addition of a masking agent for modifying the extraction characteristics.  In an example iodine is extracted from aqueous solution by passing through a column packed with beads of cross-linked polystyrene resin previously allowed to swell in carbon tetrachloride the iodine being subsequently recovered by treating the packing with potassium iodide. In another example salts of cadmium, lead and tin in decinormal hydrochloric acid solution were separated by passing through a column packed with beads of cross-linked polystyrene resin treated with a solution of 0.1 per cent "dithiol" (4-methyl-1, 2-dimercapto-benzene) in carbon tetrachloride when the cadmium came out in the effluent, the lead and tin being retained in the column, the lead being brought out on passing 2N hydrochloric acid through the column, the tin remaining in the column.
Patent GB-238905-A (GB)
Title: Improvements in high-pressure lubrication systems
IPC: F16N5/00
Filed: 1925-08-24
Abstract: 238,905. Tecalemit, Iitd., (Assignees of Soc. Anon. des Etablissements TÚcalÚmit). Aug. 25, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Two or more barrels in series; suction reservoirs. - Lubricating apparatus comprises a lowpressure reservoir a connected by a flexible or articulated pipe b to a high-pressure device c provided with a coupling union 9. The lubricant may be forced from the container a by a piston 1 operated by a handle 8 and engaging a spring 4 which presses on a piston 3 in contact with the lubricant. In another form the lubricant is forced from the container a by a piston exposed on one side to air pressure produced by an air pump. The device c may be of the type described in Specification 235,878, and the union 9 of the type described in Specification 211,881, [Class 99 (i), Pipes and tubes, Joints &c. for.].
Patent GB-354521-A (GB)
Title: Improvements in or relating to door stops
IPC: E05C17/36
Filed: 1930-07-14
Abstract: 354,521. Stays for doors. NORMAND GARAGE, Ltd., Cumberland Avenue, and PELL, J. E., The Den, Cumberland Avenue, both in Park Royal, London. July 14, 1930, No. 21258. [Class 65 (i).] A door is secured in any position by a strip of metal which is pressed against a friction surface on the door or wall and is caused to slide over this surface by movement of the door. In Fig. 2 the stay is shown applied to a vehicle; the strip e, hinged to the door a at e<1>, slides over a plate d, fixed to the body frame member c<2>, and is held against it by a channel-section member i, to which is fixed a bolt passing through the member c<2> and carrying a spring h, with a nut h<3> for adjusting the pressure on the strip e. Both members d, i are lined with friction material. The plate e is slotted to pass the bolt. The parts fixed on the door and the body may be interchanged.
Patent GB-1093257-A (GB)
Title: Improvements in or relating to linings for pipes
Inventor: DAVIES ERIC GORDON
IPC: F16L58/10
Filed: 1964-05-22
Abstract: 1,093,257. Moulding linings for pipes. BTR INDUSTRIES Ltd. May 21, 1965 [May 22, 1964], No. 21295/64. Heading B5A. [Also in Division F2] A sleeve 14 of polytetrafluoroethylene or other thermoplastics material is flared outwardly by a heated steel plug 17 screwed into the enlarged bore 15 of a pipe 10 whereby the sleeve is attached to the pipe.
Patent GB-419429-A (GB)
Title: Improvements in or relating to safety devices for gas burners
Filed: 1934-07-20
Abstract: 419,429. Safety cut - off valves. ELECTROLUX, Ltd., Luton.-(Assignees of Platen-Munters Refrigerating System Aktiebolag; 2, Norrmalmstorg, Stockholm.) July 20, 1934, No. 21302. Convention date, July 29, 1933. [Class 135.] A thermally actuated safety cut-off valve of the kind actuated by a vaporizable liquid acting on a diaphragm has the diaphragm of the snap - over type adapted to hold the valve either fully open or completely closed. The diaphragm 17 is made of slightly larger diameter than the cap 19 within it is clamped by turning over the edge of the cap and is clamped centrally between members 15, 15<1> screwed to the valve spindle, masses of solder being introduced at 18 and 21 to make the joints fluid tight. The diaphragm and cap are secured in a member 11 screwed to a pipe bend 10 by turning over the edge of the member 11. The valve member 13 is urged towards its seat 12 by a spring 16 arranged between the members 11, 15<1>. When a match is applied to the external surface of the cap 19, the liquid 23 is vaporized causing the diaphragm to snap over against the action of the spring 16 and so move the valve to the fully open position, thereafter the heat of the burner which is adjacent the cap 19 maintains the valve in the open position.
Patent GB-311991-A (GB)
Title: Improved process of concentrating ores containing platinum and metals of the platinum group
IPC: C22B11/00
Filed: 1928-07-24
Abstract: 311,991. Marks, E. C. R., (Cayzer Tin Smelting Co. (Proprietary), Ltd.). July 24, 1928. Metallurgical furnaces; hearths; charges,. agitating.-In the treatment of ores containing platinum or metals of the platinum group and oxides of other metals, the ore is fed to a closed furnace in which a reducing atmosphere is maintained, and is subjected to a temperature between 900‹ and 1100‹ C. After the oxides have been reduced to spongy metal the platinum &c. can be separated in any desired manner. The process is preferably carried out in an externally-heated furnace having a rotary hearth 2, to which ore and carbonaceous material, such as semi-coke, are fed by a central shoot 7. The mixture is rabbled by a water-cooled toothed arm 9, by which it is moved outwards for final discharge through a shoot 11. The rabble teeth are made of hard block carbon. The hearth 2 is of pan form, and is filled with refractory material, powdered coke, or with coke supporting a refractory bed 16. The furnace shown is heated by oil' burners delivering into the flue 5, but powdered' fuel or electrical heating means may be used.
Patent GB-832518-A (GB)
Title: Improvements in or relating to knitted hose
IPC: A41B11/00
Filed: 1956-07-13
Abstract: 832,518. Stockings &c. REYMES-COLE B. T. R. July 12, 1957 [July 13, 1956], No. 21741/56. Class 141 [Also in Group VIII] A stocking or sock is made from a tube 11 of knitted fabric closed at the foot end by a transverse join line and subsequently shaped and set so that the join line 18 extends under and along the foot from the toe to the heel. Alternative positions of join lines 15-17 are shown in Fig. 2, each lying within the reinforced area 12 bounded by the line 22. The reinforced area is produced by the incorporation of a splicing yarn or by replacing the main yarn by a stronger yarn, e.g. in a nylon stocking the main part 11 comprises 15-denier yarn while the reinforced part 12 comprises 60- denier. A thermoplastic stretch yarn also may be incorporated in the area 12. The tube may be formed by rotary knitting or by joining together the lateral edges of a flat blank. Tucks may be formed at the ends of the join line 18 and ornamental tuck stitches may be provided above the line 22. The stocking preferably comprises a micro-mesh fabric knitted from the foot to the welt and including a locking thread. Specification 756,861 is referred to.
Patent GB-168750-A (GB)
Title: Improvement in wrist watch bracelets
IPC: A44C5/14
Filed: 1920-07-22
Abstract: 168,750. Jackson, W. J. Mellersh-, (Rioux, J. F.). July 22, 1920. Watch bracelets. -The ends of a bracelet 1 of the kind comprising a pair of channelled strips coiled upon each other in interlocked relation to permit limited expansion, are provided with hooks 4 inserted in the ends of the coiled members and soldered or otherwise secured to form means for attaching the ends to a wristlet watch or watch holder 5.
Patent GB-1501514-A (GB)
Title: Material feeding apparatus suitable for use with a cutting press
IPC: B65H20/04
Filed: 1975-05-22
Abstract: 1501514 Intermittent web feeding apparatus SAMCO-STRONG Ltd 22 May 1975 [6 June 1974] 22054/75 Heading B8R An apparatus for intermittent feeding of a web 84 comprises a pair of feed rollers 28, 30, the roller 28 being associated drivingly with a belt 50 which is trained over guide rollers 46, 33 and arranged to be displaced in one direction by a clamp 58 which is reciprocated by a fluid cylinder assembly 52. To drive the rollers through an adjustable predetermined angular distance the clamp 58 is clamped at a vertically lower end of the belt 50 and then displaced upwardly. At the upper end of its displacement the clamp is released for idle return stroke whose length is controlled by an adjustable stop 70.
Patent GB-990041-A (GB)
Title: Improvements in or relating to the defrosting of frozen fish
Inventor: DAVISON HAROLD
IPC: A23B4/07
Filed: 1960-06-24
Abstract: 990,041. Defrosting frozen fish. JUNELLA FOODS Ltd. June 9, 1961 [June 24, 1960], No. 22121/60. Heading A2D. Frozen fish, while being moved through a substantially closed container, is defrosted by warm air flowing through the container and water spray directed into and entrained by the air flow. Blocks of frozen fish at a temperature of -20F. delivered from a conveyer 58, Fig. 5, in their travel along two or more series of conveyers 56, 57 Figs. 4 and 5, to a discharge shoot 62, are defrosted by warm, electrically heated, air circulated by fans 76 and containing water spray entrained from nozzles 86 in the air inlet duct 72 adjacent the conveyers. It is arranged that the entering air deflected by baffles 82, encounters first frozen fish transiting the conveyers 52 and thereafter partially defrosted fish on the conveyers 54. The blocks are overturned in their transfer from one conveyer 56 to the next underlying conveyer by feed plates 88. In various modifications, the blocks of fish are carried in trays upon gravity roller conveyers with adjacent conveyers having opposite inclinations, the conveyers may take vertical or a combination of horizontal and vertical paths, and the air flow may be directed longitudinally along opposite directions over the series of conveyers 52 and 54.
Patent GB-720635-A (GB)
Title: Electromagnetically operated sound-producing horns
Inventor: PURDON ROBERT HESKETH
IPC: G10K9/15
Filed: 1952-09-03
Abstract: 720,635. Reciprocating motors. LUCAS (INDUSTRIES), Ltd., J. Sept. 1, 1953 [Sept. 3, 1952], No. 22149/52. Class 35. [Also in Groups XXXVIII and XXXIX] In an electromagnetically-operated soundproducing horn, an iron strip a is so bent at a number of posi-  tions as to provide a central part b flanked by two side parts such that a coil d can be mounted on the central part b and accommodated in the spaces between the central part and the side parts. The extensions c of the strip a have their extreme edges bent to form attachment lugs e. A diaphragm g is vibrated by an iron disc or bar armature i which is also attached to a stem j passing through a hole in the central part b of the strip a. The free end of this stem actuates contact-pieces k so as to supply intermittent current to the electromagnet coil d.