baber/WOPTO huggingface dataset:
Patent GB-1498302-A (GB)
Title: Processes and apparatus for producing active dried yeast
IPC: C12N1/04
Filed: 1975-08-22
Abstract: 1498302 Active dried yeast DISTILLERS CO (YEAST) Ltd 22 Aug 1975 [22 Aug 1975] 34862/75 Heading C6F In drying crumbly yeast aggregates in a fluidized bed to produce powdered active dried yeast, the aggregates are subjected to disintegration forces while they are fluidized, such disintegration forces being applied continuously or intermittently throughout most at least of the time the dry matter content of the yeast is from 50 to 70 wt per cent and being sufficient to break the aggregates down into powder but insufficient to break the yeast cells themselves. Typically, aggregates of minimum dimension greater than 1 mm e.g. rods formed by extrusion, of 27-40 per cent dry matter content are dried in a suspension of moderately heated air or other gas, giving yeast temperatures of below 55‹C, for a period ranging from “ hour to 4 hours to provide a powdered active dried yeast of 90- 97% dry matter content, of which substantially all of the particles have a minimum dimension less than 0À35 mm. The disintegrating forces may be provided mechanically (preferred), by subjecting the yeast to the effect of very high gas velocities in the fluidized bed itself, in recycle ducting or in a Venturi when transferring the yeast from one fluidized bed to another, or by pressure reduction or chemical reaction. In the mechanical method a single horizontally positioned rod or four pitched blades on a rotor situated close to the base of the bed e.g. within 2", and designed to operate over at least a third of the cross-sectional area of the bed, may be rotated at speeds of up to 6000 rpm (peripheral velocities of up to, say, 5000 ft/min). A slowly rotating large diameter blade may be provided whereby to counteract any tendency for particles to accummulate at the periphery due to the centrifugal action of the rotor. Alternatively, cutter bars or sieves may be vibrated within the bed. The disintegration forces are preferably applied continuously during at least the first and/or second quarters of the total drying time (yeast dry matter contents of, say, 50-70%).
Patent GB-191280-A (GB)
Title: Improvements in and relating to electric circuit breakers
IPC: H01H33/12
Filed: 1921-12-29
Abstract: 191,280. British Thomson - Houston Co., Ltd., (General Electric Co.). Dec. 29, 1921. Sparking-preventing.- Means for interrupting a circuit comprise two switches 15, 16, of which one, 15, is shunted by a series of carbon plates 10, normally pressed together by a spring 11, and immersed in oil or similar insulating fluid 13 in a vessel 14. The switch 15, which is preferably of the oil-breaker type, is opened first and the current transferred to the carbon pile. The heat so formed vaporizes the oil and forces the plates 10 apart. The arc formed further vaporizes the oil and separates the plates so far that the circuit is broken. The switch 16 is opened before the spring 11 returns the plates to their initial position. To re-close, the switch 15 is closed before the switch 16. The plates 10 may be of any material furnishing sufficient contact resistance to vaporize the oil, and may be held in contact, as by a toggle which is tripped when the switch 15 opens.
Patent GB-343153-A (GB)
Title: Improvements in sheet separating apparatus
IPC: B65H3/34
Filed: 1929-11-15
Abstract: 343,153. Feeding sheets. LINOTYPE & MACHINERY, Ltd., 9, Kingsway, London, SHUTTLEWORTH, J., 57, Chestnut Drive, Washway Road, Ashton-on- Mersey, and MURPHY, W. G., 3, Poplar Avenue, Altrincham, Cheshire. Nov. 15, 1929, No. 34945. [Class 100 (i).] Sheet-separators. -In a sheet-separating device of the kind in which the top sheet of a pile is separated by the combined action of a combing device 6 which is moved into and out of contact with the pile and coacts with a pressing device 8 to buckle up a portion of the sheet into contact with a suetion lifting device, the action of the combing device 6 is assisted by inserting a chisel-shaped blade 21 into the corner of the pile below the comber 6, and withdrawing it at each operation of the comber. The blade 21 moves in a guide 22, and is actuated by a cam 25 keyed to a sleeve 4 on a cam-shaft 3 which controls the operation of the sheet-separators. The blade moves in a plane parallel to the top of the pile, and may move parallel to the side edges of the pile, or at an angle thereto so as to engage the corner of the pile and thus cause a small resistance to the entrance of the blade.
Patent GB-1438037-A (GB)
Title: Pivoted valves
IPC: F16K1/226
Filed: 1973-07-23
Abstract: 1438037 Valves BOPP & REUTHER GmbH 23 July 1973 [22 July 1972] 35059/73 Heading F2V In a hinged valve in which the pivot axis 10 is offset from the plane of seal 9, the sealing surfaces of the housing and of the closing member 8 are defined by two planar surfaces 14, 14 in the areas nearest the pivot axis, the other parts 15, 16 of the sealing surfaces consisting of conic sections so provided that they are secant to the pivot circle 18. By this means there is a wedging action on a sealing ring 12 on the closure member 8 throughout the entire sealing surface as the valve closes. The closure member may comprise a metal disc coated with a resilient material such as rubber, e.g. by vulcanizing. In another embodiment for a valve for a domestic take-off, Figs. 3, 4, 5 (not shown), the resilient coating may include a lip-like projection (33) which, in the closed position of the valve is pressed firmly against the seat by fluid pressure. The valve includes a flexible tubular valve 29 deformable by a member 30.
Patent GB-1056875-A (GB)
Title: Lubricant composition
IPC: C07D295/096
Filed: 1963-09-05
Abstract: Lubricant compositions comprise a mineral oil and a compound of general formula <FORM:1056875/C4-C5/1> where R1 is a primary, secondary or tertiary alkyl radical, and R is one of the radicals <FORM:1056875/C4-C5/2> or <FORM:1056875/C4-C5/3> where X is hydrogen or a methyl, ethyl, or propyl group, Y is represented by one of the formulae <FORM:1056875/C4-C5/4> , <FORM:1056875/C4-C5/5> , <FORM:1056875/C4-C5/6> , <FORM:1056875/C4-C5/7> and Z is a dodecyl or tertiary butyl group. Many such compounds are prepared, e.g. zinc cetyl-(3-aniline-2-propyl)-dithiophosphate.  The composition may also contain conventional additives, e.g. 2,6-di-tertbutyl-p-cresol.ALSO:The following zinc organo dithiophosphates are prepared by reacting the appropriate alcohol and/or phenol with P2S5 in the molar ratio 4: 1, neutralizing the resulting acids with NaOH, and obtaining the zinc salts from the sodium salts by interaction with zinc chloride:-zinc cetyl - [2 - (N - piperidyl) - methyl - 4 -tertbutyl - phenyl] - dithiophosphate; zinc cetyl - [2 - (N - piperidyl) - methyl - 4 - dodecylphenyl] - dithiophosphate; zinc cetyl - (isobutyl)-dithiophosphate; zinc cetyl-(3-aniline-2 - methyl - 1 - propyl) - dithiophosphate; zinc cetyl - (2 - butyl) - dithiophosphate; zinc cetyl-(4 - methyl - 2 - pentyl) - dithiophosphate; zinc bis - (4-methyl-2 pentyl) - dithiophosphate zinc cetyl - (4 - piperidine - 3 - methyl - 2-butyl) - dithiophosphate; zinc cetyl - (N-methyl - 3 - aniline - 2 - propyl) - dithiophosphate; zinc cetyl - (3 - aniline - 2 - butyl)-dithiophosphate; zinc cetyl - (3 - aniline - 2-propyl) - dithiophosphate; and zinc cetyl-(3 - cyclohexyl - amino - 2 - butyl) - dithiophosphate.  The following compounds are also prepared:-2 - (N - piperidyl) - methyl - 4 - dodecyl phenol by reacting p-dodecyl phenol with piperidine and iformaldehyde 3-aniline-2-methyl-1-propanol by reacting aniline with methallyl alcohol; N - methyl - N - (2 - hydroxy - 1-propyl) aniline by reacting N-methyl aniline with propylene oxide; N-methyl-N-(3-hydroxy-2-butyl) aniline by reacting N-methyl aniline with 2,3-epoxybutane; 3-aniline-2-butanol by reacting aniline with 2,3-epoxybutane; 3-aniline-2-propanol by reacting aniline with propylene oxide; and 3-cyclohexyl-amino-2-butanol by reacting cyclohexylamine with 3-chloro-2-butanol.
Patent GB-1350605-A (GB)
Title: Electricity distribution cable
IPC: H01B9/02
Filed: 1971-07-27
Abstract: 1350605 Stripping sheath from cable PIRELLI GENERAL CABLE WORKS Ltd 21 July 1972 [27 July 1971 4 Feb 1972] 35275/71 Heading H2C [Also in Division H1] An electricity distribution cable 10, comprises a core and a metal sheath 12, a portion of which can be removed for jointing purposes without breaking its electrical continuity, the sheath being shaped such that at least one region, e.g. a helical path 20a is raised away from the core of the cable compared with the remaining area of the sheath that is immediately adjacent or in contact with the core, the raised region being formed such that an incision along it, i.e. along the helical path for equal distances from a reversing point will enable a portion of the sheath to be prised back to expose the cable core. The sheath may be produced on the insulated core by extruding an oversize sheath and sizing this down to the required size using contoured rollers that will automatically form the raised regions. Alternatively the sheath is shaped only in the region where, and at the time that, the joint is required to be made using a compression tool again with contoured joints. An embodiment has a second raised helical path similar to but 180 degrees out of phase with, the first. In a further embodiment the major part of the areas between the helical paths are raised flush with the paths themselves, the only portion of the metal sheath close to the core being a narrow channel running on both sides of the helical paths. This modification can be applied to the single helical path sheath. In Fig. 4 (not shown) the raised portions comprise narrow regions running axially along the sheath and further regions extending about the circumference of the sheath.
Patent GB-901595-A (GB)
Title: Hydraulic speed control system
IPC: B65H59/38
Filed: 1958-11-05
Abstract: 901,595. Fluid brakes. DEFONTENAY, P. Nov. 5, 1958 [Nov. 18, 1957], No. 35600/58. Class 103 (1). [Also in Groups IX and XXIV] In a continuously-variable ratio gear (see Group XXIV), for a wire or like reeling machine, a reaction sun gear 16 drives a gear 12 of an adjustably throttled gear pump brake, and an output shaft 2 drives through a gear train 5, 9 to a gear 10 of a similar gear pump brake, the valves controlling the two brakes being so interconnected by links that when one brake is applied the other is released, and vice versa. The gear pumps may be of the type described in Specification 756,052.
Patent GB-852670-A (GB)
Title: Improvements in or relating to mechanical linkage structures
IPC: F02K1/12
Filed: 1958-11-06
Abstract: 852,670. Linkwork. WESTINGHOUSE ELECTRIC CORPORATION. Nov. 6, 1958 [Nov. 12, 1957], No. 35647/58. Class 80 (3). [Also in Group XXVI] Each leaf 10 of an annular array of leaves hinged to a cylindrical casing 11 to form a variable-area exhaust nozzle for a jet propulsion engine is linked to a common axially-movable actuating ring 18 by a pair of V-shaped levers 19, 20, pivoted at their apices 25, 26 respectively to the ring and the leaf, the longer legs of the two levers being pivoted together at 27 while their shorter legs 22, 23 are arranged to abut when aligned. The ring 18 is moved axially of the casing 11 by diametrically-opposite actuators 16. As the leaves 10 are moved from a fully open position, Fig. 3, to an innermost position, Fig. 5, against the gas pressure the two levers act in thrust as one unit with their short legs abutting until the long leg of lever 20 contacts the leaf 10, whereafter the two short legs separate, and closing of the leaf is completed by the lever 19 alone acting in thrust. The use of pairs of co-operating levers provides a compact arrangement, no part of the linkwork extending beyond the periphery of the ring 18.
Patent GB-1535502-A (GB)
Title: Machine for use in performing rail works
IPC: E01B29/02
Filed: 1975-12-15
Abstract: 1535502 Machine for laying and lifting railway sleepers or track ARCUBOS LTD AND MACTAGGART SCOTT & CO LTD 15 Dec 1975 [14 Sept 1974] 35700/75 Heading E1G A machine for lifting or laying lengths of assembled track or sleepers comprises side frames 2 to which are pivoted arms 3 which are swingable between a lowered position indicated by chain-dotted lines and an erected position indicated by full lines. Running wheels 7 engageable with temporary rails laid outside of the track bar are journalled in the side frames. Brackets 11 are pivoted at 12 to the upper ends of the arms and are formed with recesses 13 which are engaged by the ends of cross members 14. The cross members are connected by pivots 15 at right angles to pivots 12 to the brackets 11, and may be swung simultaneously relatively to the side frames so that the width of the machine may be reduced to lie within the loading gauge for transport. Two parallel spaced lifting beams 18 are mounted on the cross members 14 by pivot pins engaged with slots in the cross members. Rail clamps 22 and sleeper-laying beams 23 carrying sleeperengaging catches 24 engageable with the ends of sleepers 25 are supported by lifting cables from the lifting beams 18.
Patent GB-986019-A (GB)
Title: Subscription entertainment systems
Inventor: BASS PATRICK
IPC: H04N7/16
Filed: 1962-09-21
Abstract: 986,019. Coin freed television apparatus. R. & R. RESEARCH Ltd. Sept. 9, 1963 [Sept. 21, 1962], No. 35982/62. Heading G4V. The subscribers' apparatus in a television distribution network has a member set by signals from the transmitting station to establish the price of a pending programme, the subscriber being called upon to actuate an acceptance mechanism which enables receipt of the programme at the same time debiting the cost to a debit or credit meter. At its simplest the invention comprises a price wheel set to an angular position corresponding to the price demanded by pulses from the transmitting station, the acceptance mechanism restoring the price wheel to effect an addition to a debit register corresponding to the price. As shown in Fig. 2, however, the price indicated on a wheel 1 is debited from the credit accumulated in a coin mechanism 12 and indicated on a wheel 2. The price is set up by a stepping mechanism 7 driving the shaft 6 on which price wheel 1 is mounted. Displacement of the shaft 6 is made against a spring 9 and is held by a pawl 10 engaging ratchet wheel 11. If a programme is not accepted the price wheel 1 is restored by a signal which energizes solenoid 36 to release pawl 10. The credit established by coins deposited in coin box 12 is indicated on a credit wheel 2 driven from the coin mechanism by way of a one-way clutch 16. When the credit shown by wheel 2 equals or exceeds the price demanded by wheel 1 a programme may be accepted by depressing a manual button 20 to displace the racks 27 and 27<SP>1</SP> on the edges of a common U-sectioned member. The racks engage pinions 28 and 28<SP>1</SP> to drive the wheels 1 and 2 together until a pin 32 on wheel 1 engages the racks and moves them out of mesh from the pinions. In this position wheel 1 has been restored to a point where contacts 35 are made enabling the subscriber's apparatus and the price has been subtracted from the credit shown by wheel 2. If the credit is less then the price demanded a pin 32<SP>1</SP> on wheel 2 dislodges the racks 27, 27<SP>1</SP> before wheel 1 is restored. Further credit must be established through coin box 12 to effect acceptance. The price wheel 1 may be set backwards from the maximum price setting. A record of the total number of coins deposited in box 12 is kept on a counter 15.
Patent GB-418882-A (GB)
Title: Apparatus for consolidating concrete and like plastic masses in situ
IPC: E01C19/38
Filed: 1933-12-21
Abstract: 418,882. Consolidating wet concrete in situ by vibration. NATHANSEN, P. A., (trading as LARSEN & NATHANSEN), 4, Vestre Boulevard, Copenhagen. Dec. 21, 1933, No. 35989. Convention date, Dec. 23, 1932. [Class 107.] A deposited mass 3 of concrete, cement, or the like, is consolidated by a vibrating device consisting of tools 9 mounted on a suspended beam 8, means being provided for vibrating the beam while it is being traversed bodily over the mass. As applied to the consolidation of concrete roads, the beam is suspended by links 7 from a carriage 5, which is mounted by wheels 6 on rails 4 on either side of the road. The tools, which are spade-like in shape, are clamped to the beam with their planes extending in the direction of movement of the machine. Mounted on the beam is the vibrating device 12, consisting of eccentrically-suspended weights, reciprocating pistons, induction coils, or the like, actuated by steam, compressed air, or electricity. The power source may be mounted on the carriage or on a tractor used for propelling the carriage along the rails.
Patent GB-491480-A (GB)
Title: Improvements in devices for attaching carriers, bags, and the like to cycles and for like purposes
IPC: B62J9/00
Filed: 1937-12-30
Abstract: 491,480. Attaching bags &c. to cycles etc.; hook fastenings. BIRCH, E. DE G. Dec. 30, 1937, No. 36071. [Class 136 (i)] [Also in Group XXV] A device for attaching bags and other carriers to cycle saddles and other supporting articles comprises a pair of spaced lug-like members which are carried by the bag or carrier or by a plate attached thereto and project forwardly from a pair of operating finger-pieces, so that they can be engaged in apertures in the saddle &c. by pressing the bag &c. towards the saddle &c., and disengaged by moving them in opposite directions, against spring action, by means of the finger-pieces, and then pulling the bag &c. away from the saddle &c. A saddle bag 1 is provided with a metal &c. strip 4 attached by bolts 5, on which are pivoted strip-metal members 6 of U-form having their outer limbs bent to form hook-like projecting lugs 8, which are adapted to engage the usual eyes 3 in the saddle 2, under the action of a tension spring 10. The pivoted members 6 are formed with finger-pieces 12, whereby they may be swung apart to disengage the lugs 8 from the eyes 3. In order to prevent swinging of the bag, a long coiled tension spring, or a rubber band 14 is secured by clips 21 to a leather &c. panel 20 mounted on the bolts 5, and is adapted to be looped around a transverse abutment 16, 17 on a clip 19 embracing the saddle pillar 15.
Patent GB-406288-A (GB)
Title: Improvements in or relating to television
IPC: H04N5/04
Filed: 1932-07-20
Abstract: 406,288. Valve circuits. PYE RADIO, Ltd., and GOLDMARK, P. C., Radio Works, Cambridge. July 20, 1932, No. 36122/33. Divided on 405,006. [Class 40 (v).] A current for driving a phonic motor M for television is generated by charging a condenser cl through a resistance r1 and discharging it at intervals through a valve V2, which has a control grid biassed by the discharge of the condenser. The discharge from the condenser also passes through a resistance r2 which controls the bias and hence the anode current of a valve VI. The voltage developed across a variable resistance r3 in the anode circuit controls the bias on the grid of the valve V2. The motor is fed from the output of the valve through a filter L, c2. The current has the form A=Ae<-at>. The condenser c1 and resistance rl have a time constant such that a= log 18. 7T
Patent GB-991433-A (GB)
Title: A three-layer electric contact body and a process for the production thereof
IPC: B22F7/00
Filed: 1962-09-24
Abstract: 991,433. Switch contacts. SIEMENSSCHUCKERTWERKE A.G. Sept. 24, 1962 [Sept. 23, 1961], No. 36309/62. Heading H2B. A three-layer electrical contact body comprises one layer of a contact material, e.g. Ag-Pb, Ag-Cu, Ag-Cd, Ag-Ni-Cd, Ag-CdO, Ag-Ni-CdO, Ag-SnO 2 , Ag-C or other metalmetal oxide systems, having poor soldering properties, a second layer of, e.g., pure silver, copper or a silver alloy having good soldering properties and a third layer of solder. The layers are joined either by sintering the first and second layer and pressing the solder in powder form on to the other layers or by introducing the three layers into a pressing die and pressing and sintering them together.
Patent GB-177272-A (GB)
Title: Improvements relating to sheet feeding mechanism for printing presses
IPC: B65H9/10
Filed: 1920-12-29
Abstract: 177,272. Evans, A. B., and Payne, R. P. Dec. 29, 1920. Sheet-carriers and registering-devices; gripper mechanism; gripper-cylinder sheet feeds.-Sheets are fed to the impression or sheet-carrying cylinders of printing-presses at a speed substantially the same as the cylinder, and are registered in side and front or longitudinal register while in motion. The sheets are forwarded by belts e, and before reaching the impression cylinder A are registered against a side gauge m by an inclined plush-covered roller r which is driven by helical gearing, and is dropped into contact with the sheet so as to cause the sheet to engage the fixed side gauge m which is carried by a laterallyadjustable bracket h, or a moving gauge may replace the gauge m. The impression cylinder A is fitted with a pair of grippers V, W, which are carried by an oscillating lever O and act to grip the sheet lightly and draw it against a gauge f mounted on the gripper ledge of the main gripper C which is actuated by a cam to grip the sheet after it has been thus registered in a longitudinal direction. The gauge f may be formed on the gripper C.
Patent GB-423541-A (GB)
Title: New or improved adsorbents and methods of manufacture thereof
IPC: A61K33/08
Filed: 1933-12-28
Abstract: Aluminium and iron hydroxide gels are prepared by slowly adding a dilute solution of ammonia to dilute aluminium or ferric chloride solutions at a temperature of about 35 DEG  C.  The ammonia solution is added in slight excess and the precipitate washed a number of times to remove ammonium chloride.  The gel so obtained is diluted with water, mixed with colloidal kaolin (and flavouring materials) and passed through a homogenizer to produce a dispersion intended for medicinal purposes.ALSO:An intestinal absorbent medicine is prepared by dispensing kaolin of colloidal fineness in an aqueous dispersion of an inorganic hydroxide gel in particular aluminium or iron hydroxide. Aluminium (or iron) hydroxide is prepared by slowly adding a dilute solution of ammonia to dilute aluminium chloride (ferric chloride) solution at a temperature of about 35 DEG  C.  The ammonia solution is added in slight excess and the precipitate washed a number of times to remove ammonium chloride.  The gel is diluted with water and colloidal kaolin stirred in to form a thin cream. Flavouring is added and the mixture passed through a mechanical homogenizer.
Patent GB-949506-A (GB)
Title: Cellulose acetate spinning solutions and process of spinning fine denier filaments therefrom
IPC: D01F2/30
Filed: 1960-10-24
Abstract: Octylene glycol aluminate is made by adding one mole of aluminium isopropoxide to a solution of one mole of octylene glycol in 2 moles of isopropanol, and distilling off three moles of isopropanol under reduced pressure.ALSO:A cigarette filter is made from a tow of 20,000 cellulose acetate filaments each of 0.62 denier, which is crimped to 20 crimps per inch, spread out to a width of two feet and sprayed with glycerol triacetate plasticizer to an increase in weight of 14%. The tow is then compacted into a cord and processed into filter rods in conventional manner.  Cigarette filters 15 mm. in length and 25.5 mm. in circumference are made from the rods and attached to cigarettes, which are smoked on a standard cigarette smoking machine. Analysis of the smoke yields 56% less tar and nicotine than is obtained from the same cigarettes without the filter.  The filaments comprising the filter are made from a cellulose acetate spinning solution, containing preferably 15-23% cellulose acetate, the viscosity of which has been increased by dissolving therein a small proportion of an aluminium chelate compound.  For details see Division B5 abridgment.