baber/WOPTO huggingface dataset:
Patent GB-437858-A (GB)
Title: Improvements in or relating to rotary web printing presses
IPC: B41F13/54
Filed: 1935-01-24
Abstract: 437,858. Printing-presses. JACKSON, L. MELLERSH-, 28, Southampton Buildings, Chancery Lane, London.-(Goss Printing Press Co. ; 1535, South Paulina Street, Chicago, U.S.A.) Jan. 24, 1935, No. 2390. [Class 100 (i)] Cutting, folding, and associating apparatus.- A rotary web-printing press is provided with a pair of folding-cylinders to which the web is fed and a transfer and collecting cylinder situated between the folding cylinders and arranged to be thrown out of operation when desired to enable all the sheets cut from the web to be folded by one cylinder on some of the sheets to be folded by the second cylinder. A web 10 is led from the press to slitters 13, 14 arranged as shown, the halves being fed to formers 18. The two halves may be superposed by means of turner bars 19, or the parts of the web may be associated with corresponding parts of a second web 11. After leaving the former, each half-width web passes to a cylinder 22 provided with two sets of sheet-taking pins 28, 29, two double-edged folding-blades 25, 26, and two blocks 40 co-operating with a knife 39 on a transfer and collecting cylinder 24, which is also provided with a set of pins 38. A second folding-cylinder 23 is provided, having a set of pins 35 and a folding-blade 34. The half-width webs are cut into sheets at each half revolution of the cylinders 22, and the sheets may be dealt with as follows : (a) a sheet may be delivered at each half revolution of the cylinders 22 by each of the blades 25, 26, the pins 38 being thrown out of operation ; (b) a two-sheet product may be delivered at each revolution of the cylinders 22, the blades 25 and pins 29 being thrown out of operation, and the cylinders 24 acting as collecting-cylinders ; (c) single sheets may be delivered alternately by the cylinders 22, 23, the blades 25 and pins 29 being thrown out of operation, and the cylinders 24 acting as transfer-cylinders. The products from the two formers 18 may be cross-associated by the use of the roller 42. The slit webs may be led to pairs of formers arranged at right angles to the press, the formers of each pair being arranged one above the other or side by side.
Patent GB-585119-A (GB)
Title: Improvements in or relating to beet harvesters
IPC: A01D25/04
Filed: 1945-01-31
Abstract: 585,119. Beet harvesters. LOUCKS, C. A., SCHMIDT, L. K., JONGENEEL, A. M., and DU BOSE, G. P. Jan. 31, 1945, No. 2464. Convention date, Jan. 31, 1944. [Class 6 (iii)] A beet harvesting implement having a spiked beet pick-up wheel, is provided with a sub-soil plough supported ahead of the point of contact of the wheel with the ground, and another subsoil plough disposed rearwardly of said point. In the construction shown a spiked beet pick up wheel 1 is carried on a cross shaft 2 journalled on opposite sides of the wheel on transversely spaced frame beams. Mounted on the wheel face 4 is a plurality of transversely and equally spaced rows of curved spikes 5. The plough assembly comprises a pair of sub-soil plough units 6 and 7 mounted on the frame beam 3 and depending therefrom to one side of the wheel 1. Each plough unit consists of a vertically disposed plate-like standard 8, disposed edgewise to the direction of travel, and secured at its upper end to an attachment member 9, secured to the frame beam 3 in vertically adjustable relation by clamps 10. The width of the members 9 permits of horizontal adjustment thereon of the standards 8. A bracing block 11 secured to the members 9 helps to maintain the standards 8 in position. The lower ends of the standards 8 are bent laterally inward to form plough blades 12, disposed at a slight downward slope laterally and at a similar downward and forward slope lengthwise of the implement, the leading edges of the blades being sharpened. The blades 12 project beneath the wheel 1 and the standards-are of such length that the blades run beneath the beets. The blade 12 of the unit 7 includes a forwardly and downwardly projecting finger 13 sharpened on its leading edge and serves to effect a ploughing action at a greater depth but in a path of lesser width then the corresponding blade 12. The plough unit 6 is disposed so that the blade 12 is situated substantially ahead of the point of contact of the wheel with the ground, so that as the implement advances the soil around and beneath the beets is loosened and when the wheel 1 engages said beets, the latter, if at " high crowns," are depressed into the ground until the crowns are substantially flush with the ground and then impaled on the spikes 5. On further advance of the implement the plough unit 7, disposed slightly to the rear of the point of contact of the wheel with the ground, loosens the soil around the beets so that they may be lifted easily and carried away on the wheel 1. Specification 571,086 is referred to.
Patent GB-1177101-A (GB)
Title: Inverter Control and Protector System
IPC: H02M7/525
Filed: 1967-01-17
Abstract: 1,177,101. Converting circuits. UNITED AIRCRAFT CORP. 17 Jan., 1967 [24 Jan., 1966 (2)], No. 2500/67. Heading H2F. In an inverter circuit comprising controlled rectifiers SCR1, SCR2, provision is made for extinguishing the rectifiers, i.e. in the event of a fault, by means of a further controlled rectifier SCR4 connected to an autotransformer 230 in the D.C. feed to the inverter rectifiers. The protective system is applied to a frequency changer in which a three-phase input is rectified to provide a D.C. voltage which is applied to amain and a " teazer " single phase inverters. The two single-phase outputs are then combined to give a three-phase output. Each inverters comprised main thyristors SCR1, SCR2 and a commutating thyristor SCR3, the firing point of the latter being determined by a phase control circuit 232. In the event of an abnormal condition, an input is applied to one of the diodes 252, 254, 256, 258 to fire thyristor SCR4. The tapping on autotransformer 230 is thus earthed via capacitor 238 to cut off thyristors SCR1, SCR2. As capacitor 238 charges, a signal is applied via transistor circuit 236 to block the gate circuit 228 and prevent firing signals from reacting the control electrode of SCR1, SCR2. At the same time a " cutback " signal is applied to adjust the firing angle of SCR3. The abnormal conditions to which SCR4 responds are : (a) during start-up; (b) misfiring of SCR's in main inverter; (c) misfiring of SCR's in teazer inverter; (d) short circuit of the three-phase output. A circuit is also provided, Fig. 6 (not shown), for producing a collector bias for transistor 266 which operates the gate 228 when the D.C. voltage is too low. The misfire voltage is derived from the cathodes of SCR1, SCR2 and the shunt circuit voltage is provided by a rectifier, Fig. 9 (not shown), connected to the inverter output. A logic circuit, Fig. 10 (not shown), is also provided connected to the three-phase output to identify the phase on which the short exists.
Patent GB-1442035-A (GB)
Title: Light sources for a microscope
IPC: G02B21/06
Filed: 1974-01-18
Abstract: 1442035 Microscopic illuminator C REICHERT OPTISCHE WERKE AG 18 Jan 1974 [9 Aug 1973] 02530/74 Heading G2J A microscopic illuminator incorporates four separate light sources and reflectors so arranged that any one of the sources can be used to emit light at either of two locations being respectively for transmitted and reflected light microscopy. To moderate intensity sources may be quartziodine lamps one high-intensity source may be a Xenon arc and the second a cerium iodide arc.
Patent GB-555115-A (GB)
Title: Improvements in typewriting machines
IPC: B41J7/30
Filed: 1942-07-30
Abstract: 555,115. Typewriters. ROYAL TYPEWRITER CO., Inc. July 30, 1942, No. 2586/43. Convention date, Sept. 18, 1941. Divided out of 555,112. [Class 100 (iv)] Relay actions.-A motor for a powerdriven typewriter comprises a spring drum actuated by key-controlled means which also effect the engagement of the selected actuator. The whole poweroperated type-bar mechanism is shown in Specification 555,112. A power driven toothed drum is mounted near the front frame wall and in front of and above the type rest and is engaged by actuators intermittently connected to the drum and coupled to the pivoted type bars and the key levers. The key levers 29 are pivoted on a sleeve 17 and carry auxiliary levers 30 on pivots 31, levers 30 being coupled by links 8, 11, 14 and levers 9, 12 with the type bars 4 provided with a head rest 7. Levers 12 have an upstanding arm 25 engaged by teeth 27a on a power-driven drum E carried on a shaft 28 mounted in the main frame A. This drum is released tooth by tooth by an escapement F having a plate 61 which is rocked by a rod 34 coupled to a universal bar assembly G and consisting of side arms 35 rocking on sleeve 17, the arms carrying resilient cushions 43 engaging adjustable eccentric stops 44. The arms 35 carry a pivoted cross-bar 37 engaged by ears 39 on the key-levers 29 and moved out of the path of the ears for manual operation of the type bars by a rock arm 143 on a shaft 136 within sleeve 17, this shaft when rotated also locking each lever 30 to its key lever 29. The impact of the type bar 4 may be varied by an eccentric mounting of the shaft 28 of drum E, the adjustment being effected by a knob 104 on a screwed stem 99 so as to rock a bail 93 which carries the shaft 28 and is provided with stops 96, 97 engaging with a stop 98 fixed to frame A. The impact may also be varied by regulating the strength of the spring which drives the drum E and is wound by worm gear 84, shaft 86 and worm gear 88 from an electric motor H, the free end of the spring being attached to a collar carried by the drum and arranged to traverse a nut along the threaded end of the shaft, this nut engaging arms of a control switch so as to open and close the motor circuit. The switch is adjustable so as to vary the points at which the switch is actuated. If two type bars are operated together and collide, they may be released by moving drum E slightly in reverse by a spring pawl 125 pivoted on a handled bar 119.
Patent GB-817751-A (GB)
Title: Nuclear chain reactions
IPC: G21C3/04
Filed: 1945-02-01
Abstract: Uranium oxide containing impurities of high neutron capture cross-section is reacted with nitric acid.  The uranyl nitrate solution formed is filtered to remove insoluble impurities and then heated to form uranyl nitrate hexahydrate and boiled to evaporate the water.  The residue is dissolved in ether and treated with water, about 0.5 to 5 per cent by volume.  By using water already saturated with uranyl nitrate the impurities transfer to the water with little loss of uranium.  After repetition of this treatment the unwanted impurities have been removed although the uranyl nitrate is not of high chemical purity.  The uranyl nitrate is now recovered by evaporation or by transfer to an aqueous solution and evaporation. The nitrate is calcined to the oxide.  Specifications 793,771 and 817,752, [both in Group XL (a)], are referred to.ALSO:Uranium tetrafluoride is mixed with finely divided magnesium and heated in an iron bomb lined with calcium oxide to produce uranium metal. Subsequently uranium for fuel elements is cleaned in trisodium phosphate and washed in water.  Specifications 793,771 and 817,752 [both in Group XL(a)] are referred to.
Patent GB-983386-A (GB)
Title: Lubricants
IPC: C08L83/08
Filed: 1964-01-21
Abstract: A lubricant comprises, by weight, (1) 100 parts of a liquid siloxane which has a viscosity of from 2,000 to 100,000 cs. at 25 DEG C. and in which essentially all the units are of the formula <FORM:0983386/C3/1> wherein R is a perfluoroalkyl radical and R1 is a methyl, ethyl or vinyl radical, (2) from 4 to 8 parts of a silica filler having a surface area of at least 50 square metres per gram, and (3) from 1 to 5 parts of a liquid hydroxylated polysiloxane in which the units are of the above formula. Siloxanes (1) and (3) may be made by processes described in Specifications 832,487, 832,489, 899,657 and 959,144.  The components are mixed together in known manner, with or without solvent aid.  Optional additives include pigments, oxidation inhibitors and bleed controllers. In a typical example (2) 100 pts. of a (CH3)3Si - end-blocked 3,3,3 - trifluoropropylmethylsiloxane liquid and 7.5 pts. of fume silica were mixed with 2.15 pts. of a hydroxylated 3,3,3-trifluoropropylmethylsiloxane, 0.32 pt. of boric acid and 0.32 pt. of pentaerythritol, to form a grease.  Uses.-As stopcock greases and valve lubricants.  Specification 899,659 is referred to.
Patent GB-694103-A (GB)
Title: Improvements in and relating to autographic registers
IPC: B41L5/08
Filed: 1950-02-01
Abstract: 694,103. Making autographic registers. WAECHTER, H. J. Feb. I, 1950 [March 15, 1949], No. 2648/50. Class 83 (ii). [Also in Groups XV and XIX] An autographic register casing 20, Fig. 1, comprises a pair of complementary side walls 21, 22, a pair of complementary end walls 23, 24 and a lid 27 and a bottom 25 also forming a pair of complementary members, the respective members of each pair being formed from identical sheet metal blanks which are shaped by the same die. The bottom 25 is hinged to the lower edge of the side 21 and the lid 27 is hinged to the upper edge of the side 22. The platen 26, Fig. 12, is also hinged to the upper edge of the side 22. The front and back are flanged and are riveted to the sides. The casing is divided into three compartments 27a, 28 and 29, Fig. 2, which contain the manifold forms 32, the aligning and arresting pins 36, 37 which are constructed and operated as described in Specification 694,102, [Group XIX], and the carbon copies of the completed forms respectively. An L-shaped spring 69, 70, Fig. 13, is pivoted to the side 21 at 71 and its horizontal leg 69 serves to retain the carbon copies against a platform. 30 while its vertical leg, 70 is shaped at 72 to form a catch for the lid 27.
Patent GB-491247-A (GB)
Title: Television transmitting device
IPC: H01J31/48
Filed: 1937-01-29
Abstract: 491,247. Cathode-ray tubes. RADIOAKT.-GES. D. S. LOEWE. Jan. 29, 1937, No. 2680. Convention date, Oct. 9, 1936. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 30, 1937.] [Class 39 (i)] A television transmitting device comprises an opaque insulating-screen 8 with photo-electric mosaics 7, 9 on its two sides; the image to be transmitted is projected on to the mosaic 7, which is scanned by a cathode-ray; the resulting changes of potential permit of emission of electrons from the second mosaic 9, which is illuminated by a constant light until the elements of the mosaic reach the potential of an anode grid 11 of fine wire applied closely to the mosaic. The electrons which may be multiplied by grids 20 and 21, are collected by an anode 17 and the resulting current conducted to an amplifier 22.
Patent GB-704940-A (GB)
Title: Improvements in rectifier power supply systems
IPC: G05F1/34
Filed: 1950-07-04
Abstract: 704,940. Automatic control systems for rectifiers. WESTERN ELECTRIC CO., Inc. July 4, 1950 [July 6, 1949], No. 2724/53. Divided out of 704,864. Drawings to Specification. Class 38 (4) The subject-matter of this Specification is identical with that described in Specification 704,864 but the claims are directed towards control of the load by varying the resistance of the valves in the output circuits of the rectifiers.
Patent GB-201500-A (GB)
Title: An improved road vehicle applicable for use as a hearse
IPC: A61G21/00
Filed: 1923-01-30
Abstract: 201,500. Simpson & Slater, Ltd., and Simpson, G. H. Jan. 30, 1923. Sliding seats; combined with tool boxes; backs.-To allow of the erection in a passenger vehicle of a coffinca.rrying board 3, the rear seat is divided into three parts the centre one of which is provided with a foldable back 10 and a sliding seat 13 suitably upholstered. An aperture 15 is provided in the seat to permit access to a tool-box 16.
Patent GB-560980-A (GB)
Title: Improvements relating to polymerisation processes
IPC: C08F210/12
Filed: 1941-02-28
Abstract: A polymerization mixture comprising one or more olefinic hydrocarbons and a catalyst-quenching agent which is in the solid inactive condition at the low polymerization temperature is prepared at a temperature at or near the polymerization temperature, a Friedel-Crafts catalyst is added, the mixture is polymerized and then warmed up to a temperature at which the catalyst-quenching agent melts and becomes active, so as to destroy the activity of the catalyst at that temperature.  The olefin may comprise isobutylene, propylene, methyl ethyl ethylene, 3 - methylbutene - 1 or 2 - methylpentene-1, with or without a diolefin such as butadiene, isoprene, 2,3-dimethyl butadiene-1,3 or 1,3-pentadiene.  The catalyst-quenching agent may be ammonia, methylamine, ethylamine, n-propylamine, tert-butylamine, methyl alcohol, ethyl alcohol, isopropyl alcohol or tertamyl alcohol. Examples describe polymerizing: (1) iso-butylene in liquid ethylene using gaseous boron fluoride as catalyst and ammonia as quenching agent; (2) isobutylene in solid carbon dioxide using as catalyst gaseous boron trifluoride and as quenching agent ammonia; (3) isobutylene and butadiene in liquid ethylene, using as catalyst aluminium chloride in methyl chloride and as quenching agent ammonia; (4) isobutylene and 2,3-dimethyl butadiene-1,3 in liquid ethylene using aluminium chloride in carbon disulphide as catalyst and ammonia as quenching agent.  The residual reaction products of the catalyst and quenching agent are removed from the polymer by washing with water. Specifications 513,521, 523,248 and 565,974 as open to inspection under Sect. 91, are referred to.
Patent GB-898135-A (GB)
Title: Electrical conductor elements, method of making same, and contacts therefor
IPC: H01L21/00
Filed: 1959-01-26
Abstract: An intermetallic compound of manganese and tellurium contains 69,9 to 72% by weight of the latter, and may contain also not more than 1 atomic per cent of sodium or lithium.  The compound may be made by direct reaction of manganese and tellurium, but preferably the manganese is first converted into carbide by heating in a carbon crucible under inert gas, followed by reaction of the carbide with tellurium.  The rate of the latter reaction may be increased by using an excess of tellurium, the excess being subsequently eliminated by vacuum distillation.  The compound is used for the manufacture of electrical conductor elements. Specifications 806,640 and 814,594 are referred to.ALSO:P-Type conductive elements are made from an alloy of tellurium and manganese containing 69,9 to 72% by weight of the former, to which may be added not more than 1 atomic per cent of sodium or lithium.  The alloy may be made by direct reaction of pure manganese and tellurium, or preferably by first converting the manganese to carbide by heating in a carbon crucible under inert gas, followed by reaction of the carbide with tellurium under hydrogen or carbon dioxide.  The rate of reaction may be increased by the use of an excess of tellurium, the excess being subsequently eliminated by vacuum distillation.  The electrical properties of the alloys may be stabilized by annealing at 1400 DEG F. followed by furnace cooling. Specifications 806,640 and 814,594 are referred to.
Patent GB-285369-A (GB)
Title: Improvements in transformable coachwork for automobiles
IPC: B60J1/08
Filed: 1928-01-28
Abstract: 285,369. Seligman, R. A. L. Feb. 14, 1927, [Convention date]. Windscreens.- Motor vehicles having a folding hood are adapted to be converted into one having inside drive, or coupe or limousine, or torpedo form of body by means of panels which are flexible and normally under tension placed on the body between the front and rear doors. As shown the panel 32 is of leather or other material secured at its lower and upper edges to frame members 14, 15 which have pivoted end portions 18, 19 and 18a, 19<a> respectively. The frame members are secured to the body rail 3 and to the hood rail 4 so that the pivots of the end portions 18, 19 are in alignment with the door pivots. The end frame members 14, 15 are provided with an additional pivot 34 so that when the driver is to be isolated from the passengers the front part of the panel is bent to extend transversely across the vehicle and is secured to the partition 42, a window 43 being raised to connect the two side panels. When the hood is lowered the upper end member is secured to a member 38, Fig. 13, which is supported from the body by a stay 39.
Patent GB-925099-A (GB)
Title: Multi-liquid spray gun
IPC: B05B7/04
Filed: 1961-01-25
Abstract: 925,099. Spray-producers. DE VILBISS CO. Jan. 25, 1961 [Aug. 30, 1960], No. 2888/61. Class 69 (3). A trigger - controlled pneumatic spray gun has its liquid chamber 50 supplied with two liquids from separate tanks 68, 70; one liquid flows through a passage 88 and a cylindrical housing 92 to the chamber, and the other passes through an annular outer passage 86. The needle valve rod 52 controlling the flow of the liquids from the gun outlet 48 passes centrally through the housing which is open at its forward end. Separate valves on the gun control the flow of the liquids to the chamber. The gun is supplied with compressed-air at 20 which flows via a trigger-operated valve 24 to passages 40, 44 and 46 to an annular outlet 18 and a number of air ports 16. In the modification of Fig. 4, the spraying of liquid of different viscosities, in which the liquid of lower viscosity is fed to the housing 98, the valve rod 104 is stepped, and when urged forward to close the gun outlet the outlet 102 of the housing is substantially closed by the wider part 106 of the rod. As the valve is opened the outlet 102 remains restricted until a more fully opened position is reached. Alternatively the valve rod may be tapered.
Patent GB-1381824-A (GB)
Title: Protein food product and method of forming same
IPC: A23J3/16
Filed: 1973-01-19
Abstract: 1381824 Protein food product RALSTON PURINA CO 19 Jan 1973 [19 Jan 1972 10 Jan 1973] 2960/73 Heading A2B [Also in Division C3] An acid-stable protein product is produced by heating an aqueous slurry of a vegetable (soy) protein isolate at a pH of from 2.0 to 4.2 to an elevated temperature and maintaining that temperature under a pressure sufficient to prevent volatilisation of heated water vapour from the slurry, the temperature and time of heating being sufficient to inactivate trypsin inhibitor (human food) or urease activity (cattle feed) and to destroy spore-forming bacteria in the isolate, and the pressure is subsequently released to cause flash-off volatisation of water vapour. Typically, a slurry of 3-20% by weight solids content is heated by steam to 250-320F for from 10 to 30 seconds. A pudding is prepared by heating a mix containing 1.0-4.5%, on a dry weight basis, of the acid-stable protein product to a temperature of from 240 to 320F for from 45 to 3 seconds and quickly cooling to a temperature below 100F. Example 4 discloses a pudding mix comprising: sugar, corn syrup solids, dextrose, fat, modified food starch, the acid-stable protein product, vegetable gum, emulsifiers, flavouring materials and water. The prepared pudding had a pH of 4.3.