baber/WOPTO huggingface dataset:
Patent GB-413493-A (GB)
Title: Improvements in and relating to catamenial appliances
IPC: A61F13/20
Filed: 1933-07-14
Abstract: 413,493. Catamenial appliances. HALSTRICK, W., Raubach, Westerwald, Germany. July 14, 1933, No. 19947. Convention date, July 14, 1932. [Class 81 (ii).] The fillings 13, Fig. 3, of catamenial appliances are placed at intervals on an endless band 6 and are conveyed thereby through a tube 7 upon which has been threaded a considerable length of tubular, knitted, outer wrapping material, the wrapping and fillings being drawn off by feeding between a pair of rollers 15, 16, and being cut into lengths by hand or by a cutter operated as by the fillings in passing through the rollers. The band 6 is moved by a roller 5 driven, through a clutch controlled by link-work 36, 37 and a hand lever 38, from a pinion 39 in mesh with a driving pinion 35. Roller 15 is driven from the shaft of roller 5 through sprockets 23, 21, and a chain 22 passing over spring-loaded tightening pulleys 34. Roller 16 is driven from roller 15 through a sprocket 32 and pin wheel 33, and is carried by a frame 30 pivoted at 29<1>, the rollers being separable by depression of a lever 24, which collapses a toggle link 25, 26, bearing on the frame 30, and depresses the roller 15 in slotted bearings. The tube 7 is slightly conical and is secured to the bed-plate 3 of the apparatus by a tongue and slot connection at one end and a cam-like catch at the other. Rollers 17 which bear on the fabric are mounted in slotted bearings 17<1> and are separable to release the tubular fabric by a spring load lever 19 and linkwork. The tube 7 is loaded by hand or by rollers 41, 42, Fig. 5, interconnected by pinions 49, 50, and driven by a belt and pulley 45. The spindle 46 of roller 42 is displaceable laterally in slots, by a handle 51, against a spring, to permit the introduction of the tube 7, on to which the tubular fabric has been slipped, whereafter rotation of the rollers presses the fabric, concertina fashion, on to the tube.
Patent GB-1138300-A (GB)
Title: An arrangement of a power unit, a main working machine and an auxiliary working machine, for instance in a railway vehicle having a generator driven by the propulsion unit
IPC: F16D33/06
Filed: 1966-05-06
Abstract: 1,138,300. Hydrodynamic couplings. C. SCHULER-VOITH, M. VOITH, H. W. SCHWEPPENHAUSER, and C. KNAPP. 6 May, 1966 [7 May, 1965], No. 20049/66. Heading F2C. [Also in Division H2] A prime mover for driving a railway vehicle also drives a generator for generating an electric heating current through an hydrodynamic coupling, the generator being driven at a relatively high speed with the coupling filled, and at a relatively low speed with the coupling emptied, by virtue of the air in the coupling. Slow rotation of the generator rotor avoids static marking of the bearings which is liable to occur when the generator is inoperative and the vehicle moving. As shown the coupling 76 is controlled by a valve 78 spring biased to its open position in which the coupling is filled, and shiftable to its closed position by a lever 73 which also opens a switch 59 switching-off the heating current. A lever 80, controlling the prime mover 1, acts through a cam 84 to close the valve 78 and interrupt the heating current during the last stage of its movement only, so that the maximum propulsive power is available. The coupling (Fig. 2) has a pump (30) and turbine (33) providing a space (43) to which liquid can be supplied through a port (40). Bleed ports (45) lead to a space (46) provided by a stationary casing (35). Should the input shaft speed fall suddenly, due e.g. to engine seizure, the flow in the torus will reverse and enter the space (43) whence it is deflected by a guide (47) to ports (48) leading to the space (46) so that the coupling empties. Liquid from space (46) is returned to a main reservoir via a cooler (64), (see Fig. 1). The vehicle transmission comprises torque converters (8, 12) in parallel and an hydrodynamic brake (19) on the turbine shaft. A common pump (51) supplies liquid to the converters, brake and the hydraulic coupling (26) for the generator, and the cooler (64) and reservoir (50) are common to these components.
Patent GB-771756-A (GB)
Title: Means for cooling or heating the cabins of aircraft or other spaces
Inventor: THEED WILLIAM DENIS LEAROYD
IPC: B64F1/36
Filed: 1951-08-25
Abstract: 771,756. Ventilating aircraft &c. GODFREY (HANWORTH), Ltd., [formerly GODFREY & PARTNERS (HOLDINGS), Ltd., Sir G.]. Aug. 18, 1952 [Aug. 25, 1951], No. 20069/51. Class 137 [Also in Group XIII]  The cabins of aircraft, or other spaces, are heated or cooled at will by a system comprising an air compressor 11 an an air expander 27, a valve 36 being operable to direct air from the compressor either to a channel 34 having a restriction or heat choke 35 through, which the hot air is passed to, the cabin &c., or to the expander to supply cold air to the cabin &c. A connection 38 may also supply pressure air at moderate temperature for testing the cabins of pressurized aircraft. The apparatus is mounted on a truck 10 for conditioning aircraft then on the ground, the compressor 11 being driven by an internal combustion engine 13 and the required air outlet being connected to the cabin &c. by a flexible hose 31, the other outlets being closed by hinged caps 37, 29, 39. Air passes through a filter 15 and silencer 16 to the compressor 11 and then through a silencer 17 either to the hot air connection 34 having a restrictor valve 35, or through a cooler 22 and valve 36 to a centrifugal compressor 25 where it is additionally compressed, then through an intercooler 26 to the expansion turbine 27 from which the cold air passes through a water separator 28 to the hose connection 31. The coolers 22, 26 are cooled . by ambient air induced by a fan 32 and exhausted through the back of the truck through louvres 33. Disinfectant or deodorant solution may be supplied to the air from tanks 19, 20. For pressure testing the hinged caps 29, 37 and the valve 36 are closed and the pipe 38 connected to the cabin, spill valve 41 opening to allow the pressure to be built up gradually. When the required pressure difference is attained relief valve 43 opens and the engine 13 may then be stopped, the pressure being maintained by a non- return valve 40. The pressure is released when desired by opening a bleed valve 42. Hinged brackets 54 are provided on the truck for supporting the flexible hose 31.
Patent GB-293765-A (GB)
Title: Improvements in dryers for various materials
IPC: F26B17/16
Filed: 1928-07-10
Abstract: 293,765. Reytere, R. de. July 11, 1927, [Convention date]. Gravity, materials descending by.-Clay, chalk, &c. is dried by passage through a stone &c. chamber 1 in contact with flues 3, 6, 12 through which pass the products of combustion from a furnace 2. The hot gases pass through the firebrick flue 3, the return flue 6 and the flues 12 either to the interior of the chamber or to a chimney, the flues 6, 12 being formed of cast-iron plates. Air admitted through a flue 19 is distributed throughout the chamber by a flue 22 having a longitudinal opening 23 and communicating with the flue 19. The clay &c. is admitted through the opening 18 and discharged through the openings 26.
Patent GB-889704-A (GB)
Title: Novel aniline derivative and a process for the manufacture and conversion thereof
IPC: C07C43/205
Filed: 1960-06-08
Abstract: 1-Amino-2-methyl-4,5,6-trimethoxy-benzene <FORM:0889704/IV (b)/1> is made by coupling 1-methyl-3,4,5-trimethoxy-benzene with a diazonium salt and reducing the resulting azo compound to the required aniline derivative.  In an example (p-nitro-phenyl)-diazonium chloride is used as coupler to give the azo compound of the formula <FORM:0889704/IV (b)/2> This azo compound, dissolved in methanol, is hydrogenated at normal temperature and pressure in the presence of palladized carbon.  The reaction-mixture is filtered, and evaporated to dryness under reduced pressure.  The residue is treated with diethylether, whereupon 1-amino-2-methyl-4,5,6-trimethoxy-benzene goes into solution, whereas p-phenylene diamine remains undissolved. The ether solution is evaporated, and the aniline derivative is obtained as a brown oil.  This oil is dissolved in 3N-sulphuric acid, the solution is covered with a layer of ether, and potassium dichromate is added.  The reaction-mixture is then extracted with ether in order to separate 2 - methyl - 5,6 - dimethoxy-benzoquinone.
Patent GB-1085413-A (GB)
Title: Improvements to an emitter coupled crystal controlled circuit
Inventor: PAGE PETER BERNARD
IPC: H03B5/36
Filed: 1966-05-06
Abstract: 1,085,413. Transistor crystal oscillator circuits. STANDARD TELEPHONES & CABLES Ltd. May 6, 1966, No. 20136/66. Heading H3T. A crystal controlled oscillator comprises a first transistor VT1 having a biasing arrangement R3, R4, R9 and C1 and a second transistor VT2 having the base directly coupled to the collector of the first transistor, the emitter coupled to the base and emitter of the first transistor via a resistor R10 and a crystal unit XTL and the collector directly coupled to the electrical supply, the output from the oscillator being taken from the emitter of the second transistor via a capacitor C2. The circuit shown may be made in thin film or individual component form and provides a more compact arrangement of the known oscillator of Fig. 1 (not shown). Resistor R10 provides D.C. negative feedback and improves the D.C. operating point stability against temperature changes.
Patent GB-1136199-A (GB)
Title: Surface modification of polyolefin objects
IPC: C08J7/043
Filed: 1967-05-02
Abstract: 1,136,199. Coated products. HERCULES Inc. 2 May, 1967 [4 May, 1966], No. 20197/67. Addition to 1,040,539. Headings B2E and B2K. A polyolefine object e.g. a fibre or fabric, has at least one surface thereof coated with a crystalline ,propylene polymer which has been modified by chemical reaction with an ethylenically unsaturated carboxylic acid or anhydride in an amount providing from 0.15 to 5.0% carboxyl groups, actual or potential, by weight of the modified polymer. The polyolefine object may comprise stereo-regular polypropylene or linear polyethylene. The crystalline propylene polymer may comprise isotactic polypropylene or copolymers of propylene containing at least about 20 mole per cent propylene units. e.g. ethylene-propylene and propylene-butene-1 copolymers. The ethylenically unsaturated carboxylic acid or anhydride may be maleic anhydride, or acrylic, methacrylic, itaconic, fumaric or crotonic acid. The acid modified propylene polymer can be applied as a solution or dispersion by brushing, dipping, or spraying. A top coat of nitrocellulose, thermosetting enamel, acrylic or chlorinated rubber lacquers, latex paints or adhesives.
Patent GB-445917-A (GB)
Title: Carrier wave signalling system
IPC: H03J9/00
Filed: 1935-07-16
Abstract: 445,917. Wireless receiving-apparatus. HAZELTINE CORPORATION, 15, Exchange Place, Jersey City, New Jersey, U.S.A.-(Assignees of Johnson, J. K.; 723, Cummings Avenue, Kenilworth, Illinois, U.S.A.) July 16, 1935, No. 20254. Convention date, Nov. 15, 1934. [Class 40 (v)] A pair of circuits remote from each other are capacitively coupled by the inherent capacity between a pair of cable conductors supplemented by additional capacity directly included in at least one of the circuits and bridged across the cable conductors. The Figure shows an aerial circuit including a condenser C1 connected between cable 4 and earth. A further parallel capacity C1 is included in the tuned input circuit of the valve 10 the total capacity coupling this circuit to the aerial. A similar coupling is used between the output of the frequency changer 12 and the intermediate frequency amplifier 14. The invention enables the receiver to operate over a plurality of wavebands without switching at the remote point, the cable being electrically short in comparison with the wavelengths used.
Patent GB-669089-A (GB)
Title: Textile sizing compositions
IPC: D06M15/09
Filed: 1948-07-30
Abstract: A textile sizing composition comprises an aqueous solution of a blend of a water-soluble cellulose ether (preferably a carboxyalkylcellulose, particularly a sodium carboxymethylcellulose) and a polymeric water-soluble unsaturated aliphatic carboxylic acid (preferably polymerized methacrylic acid).  The cellulose ether may also be a methyl cellulose, a hydroxyethylcellulose, or a carboxyethylcellulose. The aliphatic carboxylic acid may also be a polyacrylic acid. The solid component of the composition may comprise 30-90 parts by weight of a sodium carboxymethyl cellulose and 70-10 parts by weight of a polymethacrylic acid, the former being preferably present as the major ingredient.  The total solids content of the size may be 2-5 per cent.  The composition may contain a softener or humectant, usually in proportions of the order of 10-100 per cent by weight of the sum of the weights of the cellulose ether and the polymeric acid.  Suitable softeners are aliphatic polyhydric alcohols such as triethylene glycol, propylene glycol, glycerol, sorbitol and, preferably, ethylene glycol.  A lubricant is desirably present also, such as mineral and vegetable oils, sulphonated mineral and vegetable oils, fats such as tallow and sulphonated fats such as sulphonated tallow, these being included usually in amounts of the order of 5-30 per cent by weight of the sum of the weights of the water-soluble cellulose ether and the polymeric water-soluble unsaturated aliphatic carboxylic acid.  In an example a sodium carboxymethylcellulose having a viscosity of 40 cp. in a 2 per cent aqueous solution at 25 DEG  C. and a degree of etherification of 0.5, is dissolved in water and a polymethacrylic acid, ethylene glycol and sulphonated tallow added to give a mixture containing 2.0, 1.0, 0.7 and 0.3 parts by weight respectively of the above ingredients and 96 per cent by weight of water.  The solution is applied at 60 DEG  C. to a nylon warp.  The sizes are particularly suitable for use with nylon type textile materials, such as those of polyhexamethylene adipamide; with polymer fibres of amino-acid anhydrides or lactams, such as epsilon caprolactam; and with textile materials of condensation products of terephthalic acid with aliphatic dihydric alcohols such as ethylene glycol.  The Specification as open to inspection under Sect. 91, comprises p  also sizing solutions consisting of a water soluble cellulose ether (e.g. 1.5-5.0 per cent by weight) dissolved in water, either alone, or together with polyvinyl alcohol or gelatine. Ethylene glycol and sulphonated tallow may also be present and examples are given of such compositions. This subject-matter does not appear in the Specification as accepted.
Patent GB-870514-A (GB)
Title: Improvements in or relating to hydraulic pit props
IPC: F04B7/04
Filed: 1957-06-27
Abstract: 870,514. Mine roof supports. BECORIT GRUBENAUSBAU G.m.b. H. June 27, 1957 [June 28, 1956], No. 20355/57. Class 20(2) A hydraulic pit prop comprising two telescopic cylinders 1, 2 is extended by a twostage pump 5, 10, Fig. 1, operated by an electric vibratory motor to transfer fluid from a storage chamber 2a into a pressure chamber 1a. The motor comprises an electromagnet 17 and armatures 18, 18a secured to a carrier 20 by a spring 19 which engage respectively the head 11 of a high pressure piston 10 and a bearing 13 of a low pressure piston 5, a compression spring 12 acting between these parts. Operation of the motor reciprocates the pistons 5, 10 extending the prop by the action of the compressive piston 5 until the prop engages the roof overcoming the spring 9 loading a valve 8 to set the prop under the action of the high pressure piston 10. The vibratory motor is then cut out by a relay controlled by the fluid pressure. Fluid enters the low pressure stage through a bore 23a and the high pressure stage through a bore 21. It passes from the pump to the pressure chamber 1a through a flared bore 6 which acts as a non-return valve during the operation of the pump. An additional valve (Fig. 4, not shown) assists in filling the low pressure pump. The prop is released by first connecting the motor to a D.C. supply to open the high pressure piston 10 allowing fluid to escape through bores (not shown) to the storage chamber 2a. A release valve comprising a closure member 26a movable within a sleeve 29 is then operated by means of an electromagnet 28 which is energized to attract an armature 27 connected to the member 26a which is thus lifted from its seating. The electric motor may be operated by an A.C. or chopped D.C. supply, In another embodiment, Fig. 5, an open ended cylinder 38 passes through the head 3a of the inner cylinder 2. The pistons 5, 10 are situated within a block at the base of the pressure chamber 1a, the pressure therein serving to retain flanges 39 on the lower end of the cylinder 38 sealed against a seating on the base. To release the prop, the high pressure piston 10 is first opened. When the pressures in the chambers la and 2a are substantially equal, operation of an electromagnet. 28 causes an armature 44 to raise the cylinder 38 by acting on a bar 45. The armatures 18, 18a are discs.
Patent GB-625392-A (GB)
Title: A dismountable and transportable rick covering
IPC: A01F25/10
Filed: 1947-07-28
Abstract: 625392 Rick covers C FOX 28 July 1947 20360 Convention date 1 Aug 1946 Index E1A 632 Rick covers are secured by ties passing beneath the rick and hooked to stiffening bars 3 attached beneath the ends of the curved sheets 2. T-shaped stiffening bars are also bolted near to the underside of each sheet 2, near each edge but set back sufficiently to permit overlapping. Turn-buckles can be used for tightening purposes.
Patent GB-939540-A (GB)
Title: Variable-speed friction gearing
IPC: F16H15/50
Filed: 1962-05-28
Abstract: 939,540. Variable-speed gearing. F. K. FLOYD. May 28, 1962 [June 5, 1961], No. 20453/62. Class 80 (2). A variable-speed friction gear comprises a pair of balls 10, 11, frictionally engaging a driving disc 6 and a driven disc 8, the balls being frictionally engaged by pairs of rollers 40, 41 and 42, 43 which determine the axes of rotation of the balls 10, 11 and are adjustable to vary these axes and so vary the gear ratio. The balls 10, 11 are supported by a common freely-rotatable roller 13. The control rollers 41, 43 are journalled in gimbals 47, 48 which are rotatably mounted in a stationary support Y and are fast with slotted levers 88, 89 which receive pins 90, 91 fixed to a plate 84. The plate 84 has integral therewith a rack member 84 engaged by a gear 82 on a control shaft 80. The control rollers 40, 41 are journalled in gimbals 59, 60, rotatably mounted in members 61, 62 which are pivoted at 69 to the yoke member Y. The gimbals 59, 60 have extensions 67, 68 fast with levers 98, 99 slotted to receive pins 104, 105 carried by a plate formed with rack teeth 97 meshing a gear 83 fast on the control shaft 80. Rotation of the control shaft 80 thus causes conjugate movement of the rollers 40, 42 and the axes of these rollers remain parallel to the axes of the rollers 41, 43, respectively. The axes of rotation of the balls 10, 11 are parallel to the axes of rotation of the control rollers and the gear ratio is thus variable from a maximum forward ratio through zero to a maximum reverse ratio. The position of the control rollers 40, 42 is adjusted by means of a bracket B having forks 70, 71 bearing on the gimbal mounts 61, 62 and being freely mounted about an output shaft 12 by means of a ball-bearing 24. The bracket B is pivotally connected at P to a pin 121 adjustably screwed in a tube 122 so as to adjust the position of the bracket B and thus adjust the position of the gimbal mounts 61, 62 to take up play between the friction surfaces. The tube 122 is biased by a spring 124 to a position in which a flange 123 thereon abuts a fixed housing H; upon overload the spring yields to release the contact pressure between the friction surfaces. The output disc 8 is connected to the output shaft 12 by means providing a force between the balls 10, 11 and the surfaces of the driving and driven discs 6, 8 proportional to the transmitted torque. This means comprises balls 32 positioned in cam recesses of cams 30, 23; cam 23 being fast with the output shaft 12 and cam 30 engaging a friction surface 26 on the driven disc 8. Relative rotation between the cams 23, 30 is limited by a pin-and-slot arrangement 36, 35 to limit the maximum loading of the friction surfaces. Upon the occurrence of overload slip occurs between the cam 30 and the friction surface 26 rather than between the balls 10, 11 and the driving and driven discs to prevent wear and overheating these parts.
Patent GB-413875-A (GB)
Title: Improvements in paper containers
IPC: B65D3/26
Filed: 1933-07-20
Abstract: 413,875. Paper milk &c. cartons. HERRMANN, E. P., 279, 4th Avenue, East Orange, New Jersey, U.S.A. July 20, 1933, No. 20457. Convention date, Sept. 10, 1932. [Class 66.] In a paper vessel of the kind described in Specification 390,700, comprising a double thickness tubular body of truncated conical shape formed by rolling up a blank and provided with end closures, the end to be opened is formed with a pair of spirally arranged converging weakening lines 2, 3 traversing the outer portion A of the assembled vessel and with a single line 5 preferably parallel to the edge of the blank, traversing the inner portion, line 5 being interrupted at 8 to afford a hinge portion when complete detachment of the end is not desired. By pulling on the tab 7 the strip between the lines 2, 3 is completely detached and the end can then be removed by rupture of the body at the line 5. The closure 10, which may be that at the wider end, can be applied as a reclosure.
Patent GB-673925-A (GB)
Title: Methods of treating cut plants
Filed: 1947-07-29
Abstract: The wilting of cut plants is prevented, without inhibiting their faculty of forming scenting essential oils, by irradiating the cut plants with high speed electrons having a velocity equivalent to more than one million volts.  The irradiation may be from several directions at once and should be carried out during one or more short periods lasting less than say 10-4 second. The plant may be placed in an electron permeable sealed container and may be cooled below 0 DEG C. before irradiation.  The sealed container may be evacuated or may contain an inert gas and may be rotated during irradiation to facilitate exposure of the entire surface.  A suitable dose of radiation is between one and one and a half million "rep" (Roentgen equivalent physical units) during a period not exceeding 2 minutes. The source of radiation and the sealed container should be of the type described in Specification 673,924.  The Specification as open to inspection under Sect. 91, comprises also irradiation with corpuscular rays in general, irradiation of organic substances, particularly oils and foodstuffs such as castor oil and fish, to give them a pleasant odour in place of unpleasant, and the formation of scenting essential oils by irradiation of cut plants and extraction of the oils therefrom after storage.  This subject-matter does not appear in the Specification as accepted.