baber/WOPTO huggingface dataset:
Patent GB-724633-A (GB)
Title: A process for polymerising vinyl chloride and mixtures containing vinyl chloride in emulsion
IPC: C08F2/22
Filed: 1953-08-12
Abstract: Vinyl chloride or a mixture of olefinically unsaturated compounds containing not less than 75 per cent by weight of vinyl chloride is polymerized in an aqueous medium, the polymerization being carried out in a reaction space to which an emulsion of the monomer(s) is continuously supplied and from which part of the reaction mixture is continuously discharged, supply and discharge taking place at such a rate that the composition of the reaction mixture remains the same, the greater part of the monomer(s) being present in the emulsion supplied as droplets with a maximum diameter of 0.02 millimetres and the ratio of the concentrations of monomer and polymer in the reaction space being kept between 0.12 : 1 and 0.30 : 1.  Monomers copolymerized with vinyl chloride may be vinyl acetate, vinylidene chloride, acrylonitrile, methacrylonitrile, acrylates and methacrylates, and emulsifiers which may be used include fatty acid soaps and alkali metal alkyl or alkylene sulphates or sulphonates having 10 to 20 carbon atoms in the molecule.  Potassium persulphate may be used as catalyst, and a small amount of sodium bicarbonate may also be present.
Patent GB-458992-A (GB)
Title: Improvements relating to clamps for holding the strings in machines for facilitating the stringing of rackets for playing games
IPC: A63B51/14
Filed: 1935-08-07
Abstract: 458,992. Clamps for racket-stringing machines. PROSSER & SONS, Ltd., T. H., 548, Holloway Road, and JAFFE, W. E. B., 88, Elm Park Road, Chelsea, both in London. Aug. 7, 1935, No. 22285. [Class 132 (ii)] In a clamp for temporarily holding a racket string in a racket-stringing machine, facing strips e of yielding material, for example, rubberized fabric, are adhesively mounted on backing plates f, for instance of sheet metal, detachably screwed at g to the clamping jaws a, b. The jaws a, b, backing plates f and facing strips e, are notched as shown in Fig. 3, the inturned ends f of the plates f extending only over the tips of the tongues formed by the notches i.
Patent GB-584047-A (GB)
Title: Improvements in or relating to smoke, signal or illuminating flares
IPC: F42B39/00
Filed: 1944-11-13
Abstract: 584,047. Marine flares, signals, &c. SCHERMULY, C. D., SCHERMULY, A. J., and SCHERMULY, C. Nov., 13, 1944, No. 22340. [Class 9 (ii)] A device for containing and firing a smoke, signal, or illuminating flare, comprising a casing 1 partly surrounded by a buoyancy chamber 4, is provided with caps 7 and 8 adapted to be slid over the ends of the buoyancy chamber to protect the ends of the casing. The device is similar to that described in Specification 580,539 except that the buoyancy chamber is bulged at 9 to form a stop for the cap 7 and the ends 5 and 6 fit within the sides. The caps may be detachably secured with adhesive tape, and the walls of the caps and buoyancy chamber may be corrugated for strength.
Patent GB-778711-A (GB)
Title: Improved tubulous vapour generating and superheating units and methods of operation thereof
IPC: F22B21/34
Filed: 1955-08-04
Abstract: 778,711. Water-tube steam boilers; regulating superheat. BABCOCK & WILCOX, Ltd. Aug. 4, 1955 [Aug. 5, 1954], No. 22423/55. Classes 123(2) and 123(3) In a water-tube boiler comprising twin vertical furnace chambers separated by a tubulous partition and fired by independently - controllable rows of burners 18, 19, 20 disposed in the common front wall 12 of the chambers at a substantial distance above the bottoms thereof which are of hopper shape, the hot furnace gases pas sing laterally frorr the upper parts of the chambers through a common pass 40 locating a secondary superheater 126 and thence downwardly in a pass 48 in which is housed a primary superheater 114, 115, 116 and an economizer 132, 133, 134 and wherein the superheated steam temperature is maintained at the desired level at loads below full load by a recirculating cool flue gas to the furnace, the flue gas is withdrawn by a fan 144 from a duct 140 leading from the bottom of the downpass 48 to an air heater (not shown) and delivered at low velocity into the hopper bottom of each furnace chamber through ports disposed in the commom rear wall 28 of the chambers. The introduction of therecirculated gas at the described position minimizes mixing of the gas with the air and fuel and fresh products of combustion entering from the burners in the opposite direction. Such mixing is also minimized by the low velocity of introduction and the disposition of guide baffles within the fan outlet duct 146 which divide the duct into four parts 'and so ensure proper distribution of the gases at the inlet ports. As described in Specification 778,712, to prevent reverse flow of furnace gases through the recirculating system when the latter is inoperative, i.e. at or near full load, cold air from the forced draught fan is introduced into each part of the duct 146 by means of ducts 155, each of which is controlled by a damper 157 normally closed when gas is being recycled. In operation, when the steam demand decreases, the operation of a bottom burner row is discontinued and flue gas is introduced into the furnace bottom at a rate dependent on the variation in steam temperature from the required value. The cool flue gas tends to collect in the furnace bottoms forcing the fresh combustion gas away from the lower parts of the water tubes. Introduction of the flue gas in the manner described also tends to create an envelope of low temperature gas around the flames in the combustion zone, thus screening the wall tubes from radiation and reducing the residence time of the hot gases in the furnace chambers. The proportion of the total heat available for superheating is thus increased to maintain the steam temperature at its proper value. Specification 706,965 also is referred to.
Patent GB-698778-A (GB)
Title: Improvements relating to screw and nut gearing
IPC: F16H25/24
Filed: 1951-09-25
Abstract: 698,778. Conveying rotary motion. DAIMLER-BENZ AKT.-GES. Sept. 25, 1951 [Sept. 25, 1950], No. 22435/51. Class 80 (i). In a steering or other gear a nut 12 is moved by a screw 10 acting through one or more continuous series of ball: and is connected to a lever 22 by a ball and socket joint 19 held closed by a spring 25 engaging the slidable lever shaft 23. The bal 19 engages hemispherical recesses in the lever and nut and is bolted to the lever. In modifications the ball is (1) bolted to the nut, (2) formed integral with either the lever or the nut, or (3) is freely housed between recesses in the lever and nut. A projection 27 on the housing limits axial movement of the shaft 23 and the tension of the spring 25 is adjusted by a screw and but 26.
Patent GB-218154-A (GB)
Title: Improvements in or relating to the manufacture of oleo stearate of glyceryl
IPC: A61K8/98
Filed: 1923-09-06
Abstract: Oleo-stearate of glycerine for use as a face cream is obtained by emulsifying a mixture of dairy cream and a vegetable oil containing glycerine.  Preferably 10 kilograms of dairy cream are digested at 45 DEG  C. or less with 10 kilograms of olive oil and 1 kilogram of pancreatine and the product, strained through fine muslin, is agitated hot with melted stearic acid that is being saponified by a solution of 5 kilograms of potassium carbonate in 500 litres of water at 100 DEG  C.  The emulsion is aerated e.g. by heated carbon-dioxide, and the flocculent particles of oleo-stearate skimmed off and dried at 100-120 DEG  C.
Patent GB-695765-A (GB)
Title: Improvements in inner tubes for tyres and method and apparatus for making the same
IPC: B29C48/09
Filed: 1951-09-28
Abstract: 695,765. Extruding inner tubes for tyres. UNITED STATES RUBBER CO. Sept. 28, 1951 [Oct. 24, 1950], No. 22659/51. Class 87 (ii). Two different kinds of rubber, of different colours or of different physical characteristics, are fed into the high pressure chamber of an innertube extruder 10 so that one forms the tube proper B and the other forms a wide outer wall strip R bonded to the tube. The water-jacketed extruder 10 carries a spider ring 34 which, by means of the spider 36, supports a mandrel 37. The die 41 is mounted ,on the spider ring in such a manner that it may be moved slightly in a plane at right angles to the axis of the mandrel in order to adjust the relative thickness of various parts of the tube. This adjustment is made by .means of circumferentially spaced screws 45 whose inner ends bear on a ring 46 screwed to the die. Rubber R to form the bonded strip is delivered from a separate extruder (not shown) to the high-pressure side of the die through a tube 12. From the tube 12 it flows into an arcuate groove 58 which is formed between the parts 41, 43 of the die. The groove decreases in width from its central portion towards each end. It is partially obturated by means of the arcuate slit through which the rubber R flows into the die. In order to increase flow near the ends of the groove 58, the central portion is provided with arcuate baffles 62 which define a narrow slot 63 through which only a restricted amount of rubber will flow. To obtain the same effect, the width of the slit between the ribs 60 may be increased near the ends of the arc. Compressed air and talc is introduced into the extruded tube through a pipe 50. The extruded tube is bent by passing it around driven rollers as described in Specification 599,991. It is then cooled by a water spray, dried by compressed air and cut into C-shaped lengths.
Patent GB-239708-A (GB)
Title: Improvements in the lubrication of air pumps
IPC: B60C23/14
Filed: 1924-09-26
Abstract: 239,708. Maxfield, A. I. B. Sept. 26, 1924. Controlling flow of lubricant; lubricant conveyed by mechanical means. - Oil is admitted to the crank case 3 of a mechanically - operated air pump from a reservoir 9 surrounding the crank shaft bearing 12 by a spring-pressed plunger valve 22 which is opened by the bevelled edge of the crank web 20 at each revolution. The inner face of the reservoir 9 is provided with two vertical ribs 17 forming, with a boss 16, semi. circular recesses 18. The bore 21 in which the valve slides emerges in the lower rib. Oil carried up by the web 20, which moves in close proximity to the ribs 17, is removed by the upper rib and deposited in one of the recesses 18, whence it passes to the bearing 12 by a duct 10. An auxiliary duct 26 leads from the bore 21 to the bearing. The ribs 17 may be horizontal instead of vertical, and only one rib need be provided.
Patent GB-606197-A (GB)
Title: Improvements in and relating to propanoic acid derivatives and processes of preparing the same
IPC: C07D495/04
Filed: 1945-09-04
Abstract: Diesters of 2-acylamido-3-carboxymethylmercaptopropanoic acids are obtained by treating a 2-acylamido-3-halo-propanoic acid, prepared by reacting 2-acylamido-3-hydroxy-propanoic acid with thionyl or phosphorus halide, with an alkali metal mercaptide of a thioglycollic acid ester.  In an example, the ethyl ester of 2-benzamido-3-hydroxy-propanoic acid is treated with thionyl chloride to produce the ethyl ester of 2-benzamido-3-chloropropanoic acid which with sodium and ethyl glycolate gives the diethyl ester of 2-benzamido-3 - carboxymethylmercaptopropanoic acid.  Specification 606,196 is referred to.  The Specification as open to inspection under Sect. 91 describes also the use of a free thioglycolic acid ester instead of an alkali metal mercaptide of such ester, the reaction then being effected in the presence of a condensing agent facilitating the removal of halogen.  This subject-matter does not appear in the Specification as accepted.
Patent GB-395881-A (GB)
Title: Improvements relating to clutch control mechanism for motor vehicles
IPC: B60K23/02
Filed: 1932-08-15
Abstract: 395,881. Controlling motor vehicles. BENDIX AVIATION CORPORATION, 105, West Adams Street, Chicago, U.S.A. Aug. 15, 1932, No. 22829. Convention date, Aug. 14, 1931. [Class 79 (v).] In automatic clutch mechanism for motor vehicles, of the kind including an engine-suction servomotor 32, Fig. 1, controlled by an accelerator operated valve 38, the connection between the throttle-rod 18 and the valve comprises a flexible wire &c. 44, the slack in which is taken up by a transversely-applied adjustable tension to vary the timing of the valve in relation to the throttle 14. As shown, the wire 44 is acted on by a tension spring 62 adjusted by an eyebolt 64 and is adjustably coupled at 46 to the rod 18, which has preferably slotted connection with the throttle arm 16. In a modification, the spring 62 is replaced by a Bowden connection to a spring-pressed knob on the change-speed lever, so that, during gear-changing, the slack in the wire 44 can be fully taken up and the valve 38 caused to move slightly before the throttle closes. The valve 38 comprises a piston-member 42, Fig. 2, controlling communication of the servomotor pipe 36 with the induction manifold 12 or atmospheric ports 54, the valve spring 48 being lighter than the returnspring 50 for the accelerator-pedal 20. Motion of the member 42 to the right-hand or declutching position may be slowed by a friction disc 60 and an air dashpot effect produced by a non- return valve 58 and small aperture 56. The clutch may be disengaged also by a pedal 66 so contacting with the arm 26 operated by the servomotor piston, diaphragm, &c. 30 as not to be depressed by servomotor action. The pedal 66 may also be the service-brake pedal, so that declutching is effected prior to braking.
Patent GB-192990-A (GB)
Title: Electrically driven centrifugal cream separator
IPC: B04B9/08
Filed: 1922-08-22
Abstract: 192,990. Persoons, J., and Persoons, A. Feb. 18, 1922, [Convention date]. Oil, catching and removing.-In a cream separator driven by hand or by an electric motor a boss 12 on the gearing casing provides a special bearing for the motor shaft. The boss 12 and a bronze lining 18 are provided with passages 20 terminating in cups 21 to catch oil thrown off by the gearing. Oil tending to escape into the motor casing is arrested by a shoulder 24, and returned by a passage 26 to the gearing casing. A similar arrangement may be adopted for the second bearing of the shaft 13 which may be supplied with oil by tubes.
Patent GB-1435582-A (GB)
Title: Process and apparatus for microbiological analysis
IPC: C12Q1/04
Filed: 1973-05-14
Abstract: 1435582 Microbiological testing McDONNELL DOUGLAS CORP 14 May 1973 [22 May 1972] 22862/73 Heading C6F Micro-organisms in a specimen are detected and identified e.g. in a spacecraft, by diluting the specimen with water and delivering the diluent mixture to a series of plastics cassettes of size 1" x ¥" x # each containing selective freeze-dried culture medium including an indicator which will cause the optical characteristics of the medium to change (by coloration or precipitation) as the micro-organism propagates in the medium. Formulations of culture media suitable for the selective identification of many common pathogens are set forth. The specimen is introduced into a plastic bag 18, Fig. I, by a swab 34 (the handle being thereafter broken off) and the detached margins at the bag opening are heat sealed. Valve 22 is opened and an evacuating hollow needle (not shown) is inserted through a septum 24 at the end of a manifold 14 to remove air from the apparatus. The needle is then withdrawn and the valve 22 closed. Bag 20 forming a diluent reservoir within bag 18 is burst by manual pressure whereby the specimen is diluted with a known volume of distilled water. On reopening valve 22, specimen and aqueous diluent flow along the manifold and through punctured septa 28 and hollow needles 44 into the cassettes 4. Within each cassette the mixture of water and specimen flows initially into the first of four transfer bores 46, Fig. 2, wherein the water rehydrates and dissolves the first bed 66 of culture medium and the solution so formed passes through a first filter 64, which retains 90% of the microorganisms present, and then into a detector cell 50. This sequence of flow is repeated with serially diluted microbial concentrations until the overflow reservoir 52 is full. The cassettes are incubated within heated aluminium blocks 82, 84, Fig. 4, and the relative optical density of the diluent culture medium is measured photo-electrically through aligned bores 88 sequentially for each detection cell 50 and each cassette and the rate of change is recorded automatically, Fig. 3 (not shown). It is found that certain organisms display characteristic growth curves when cultivated on selected media, Figs. 6 to 13 (not shown). The dilution technique enables the concentration of the evaluated micro-organisms in a specimen to be estimated.
Patent GB-337038-A (GB)
Title: Improvements relating to pleated metal sheeting
IPC: B60J7/04
Filed: 1929-07-25
Abstract: 337,038. Meltz, M. July 25, 1929. No Patent granted (Sealing fee not paid). Bodies.-A hollow compound metal sheeting for uses such as motor car floors and roofs, is formed from sheets a, provided with rib-pleate b inturned toward the sheet and interlocked with similar rib-pleats on the face of another metal sheet, the ribs forming the distance-pieces between the surfaces. The sheets on one face are staggered relatively to the sheets on the other face and the inner sheeting may be perforated to lighten it.
Patent GB-223705-A (GB)
Title: A method of supplying current to magnetic grabs of cranes, derricks and the like
IPC: B66C1/06
Filed: 1923-09-12
Abstract: 223,705. Blunt, W. E. Sept. 12, 1923. Grab-buckets; grab-forks.-Current is supplied to a grab carried by the hoisting cable a of a crane, derrick, &c. by conductors incorporated with the hoisting cable and connected at one end to two slip rings t, Fig 1, which rotate with the winding drum k and are supplied with current by brushes u. The leads b, c, Fig. 6, are separated from the hoisting cable a by a sheath of insulating material d and end in eyes p which are connected to insulated terminals q on the flange j of the drum k. The terminals q are in electrical connection with the rings t. The cable a is secured in a member g having a perforated lug h by which it is attached to the drum. The grab, which may be of the kind described in Specification 135,665, is provided with brush gear which is in contact with slip rings mounted on a swivel at the end of the hoisting cable. In a modification the cable a is used as one of the conductors.
Patent GB-207264-A (GB)
Title: Improvements in multi-color printing presses
IPC: B41F5/02
Filed: 1922-08-24
Abstract: 207,264. White, B. C. Aug. 24, 1922. Rotary machines.-In multi-colour rotary presses of the kind in which the sheets are fed to impression cylinders by a rotary carrier or ring 16 which embraces and is geared to the impression cylinders 6, 7, smearing of the impression is prevented by arranging a wedgeshaped suction device between the printing and impression cylinders which is adapted to draw the sheet towards the first impression cylinder and away from the printing cylinder. The air inlets extend to the line of contact between the printing and impression cylinders. As shown, the suction device is in the form of a box 40 of wedge-shape arranged between a supporting plate 34 and the impression cylinder 6. The plate 34 may form one side of the box, and may be perforated to draw the sheet against the plate as well as towards the opening between the plate 34 and a second plate 41 forming the other side of the suction box. A baffle plate 42 is attached to the rear of the box to prevent ingress of air from that side, and the suction may be obtained from the suction chamber 36 over which the sheet passes on its way to the second printing- couple, a valve being used in the connection to control the vacuum.
Patent GB-517592-A (GB)
Title: Improvements relating to the prevention and dispersion of fog
IPC: E01H13/00
Filed: 1938-08-04
Abstract: 517,592. Heating air by electricity. SIDAWAY, A. D. Aug. 4, 1938, No. 23025. Drawings to Specification. [Class 39, (iii)] The air above a roadway is heated to prevent and disperse fogs by electric heaters placed in longitudinal and transverse open channels in the roadway.
Patent GB-1001845-A (GB)
Title: Multi-phase circuit for generating rectangular pulses
IPC: H03K5/15
Filed: 1962-06-15
Abstract: 1,001,845. Transistor multi-stable switching circuits. ALLMANNA SVENSKA ELEKTRISKA A.B. June 15, 1962 [June 15, 1961], No. 23055/62. Heading H3T. A multi-stable state circuit comprises a plurality of transistors I; II, III or other electronic switching elements, arranged in a closed ring, the control electrode of each element being connected via a diode (10, 11, 12) to the output electrode of the immediately preceding element and via resistors (4, 5, 6) to the output electrodes of all other elements. As shown, the circuit is controlled by three-phase sinusoidal voltages from the secondary windings r, s, t of a transformer 16 via diodes 13, 14, 15. In each stable state, two transistors are conductive and one non-conductive, so that the output at terminals K I , K II , K III  consists of three-phase rectangular waveforms each having a duration of 240 degrees.
Patent GB-881070-A (GB)
Title: Data recording system
IPC: G06C11/08
Filed: 1960-07-01
Abstract: 881,070. Statistical apparatus. NATIONAL CASH REGISTER CO. July 1, 1960 [July 9, 1959], No. 23078/60. Class 106 (1).  In an apparatus of the kind described in Specification 809,639 in which data read from record tags and entered on the keyboard of a cash register 102 is punched into a record tape, there is a detecting device which detects failure of the punch 100 to respond and which after a delay period causes the punch to record an indication of the failure. The apparatus is for use in a shop and uses two types of record tag, the customer's tag and the salesman's tag. A sequence-selector switch makes it necessary for these to be inserted in the correct order in the tag-reader 101 and the data recorded thereon in a five-bit code by punched holes is sensed column-by-column by cam-operated pins made operative in successive columns. Each column of five pins controls five contacts so that the characters on the tag appear in succession on the output leads of the reader. After recoding in a diode matrix successive characters are punched in the record tape in punch 100. Towards the end of its punching cycle the punch sends a signal to the tag-reader to cause it to pass on to the next character. If the punch fails to operate the signal is not produced and the tag-reader stops. A slow-to-act relay is energized at the beginning of a tag-reading operation. Normally the reading operation is completed before this relay can act but should the punch fail to operate the tag-reader stops and the slow-to-act relay operates. This causes operation of an " auto-void " relay which causes a " void " symbol to be punched in the tape and prevents the sequence-selector switch from stepping to the next position. The " auto-void " relay then causes the tag-reader to eject the tag and to cycle idly until it reaches the home position. The parity checking circuit which normally locks the tag reader when a predetermined number of punches fail to operate during a recording is put out of action to allow the homing to take place. The operator is thereafter obliged to complete the recording process manually by re-reading the tag or entering the data on the keyboard of the cash register 102.