baber/WOPTO huggingface dataset:
Patent GB-1262548-A (GB)
Title: Indicator system for angle-measuring instruments including an altitude circle
Inventor: FEIST WIELAND
IPC: G01C1/02
Filed: 1969-05-06
Abstract: 1,262,548. Theodolites. CARL ZEISS JENA VEB. May 6, 1969, No.23074/69. Heading GIF. [Also in Division G2] An indicator system for angle measuring instruments e.g. theodolites, having an altitude circle 1 with only one scale, diametrically opposite points 3, 4 on the scale being used to provide a reading, by means of an optical system arranged so that an image of one point 3 is produced in a plane 7 different from that containing the other point 4, prisms 10, 11 for combining light from the image of the first point 3 and the second point 4 itself being located between the plane 7 and the plane containing the point 4. The image in the plane 7 of the point 3 is produced by an optical system comprising a ridge prism 8 which produces lateral inversion, lenses 6 in a mount 5, and a pentaprism 9. The mount 5 is suspended on cross-tapes 16 to compensate for tilting of the device about the plane containing the circle 1, but may be fixed if compensation is not required. The prisms 10, 11 are arranged to reflect light from the image plane 7 and the point 4 along the optical axis O-O of a viewing system 15 an opaque cover 14 being provided on part of the lens 10. In an alternative embodiment one of the prisms 10, 11 may be a ridge prism to produce lateral inversion of its associated image, and these two prisms may be pendulously suspended to compensate for tilt in place of the lenses 6 in the mount 5.
Patent GB-712820-A (GB)
Title: Improvements in compositions comprising softening agents
IPC: C08K5/02
Filed: 1950-09-21
Abstract: A composition comprises a vinyl chloride polymer or copolymer, e.g. with styrene, a softening agent such as dioctyl phthalate, and an oily condensation product having a boiling range of 200 DEG C. to 260 DEG C. at a pressure of 200 millimetres (mercury gauge) which has been prepared from a chlorinated cycloparaffinic hydrocarbon of at least ten carbon atoms and a mononuclear aromatic hydrocarbon such as benzene by the Friedel-Crafts synthesis, the ratio of oily condensation product to softening agent not exceeding 1:1.  Other ingredients which may be present include heavy spar, red iron oxide, cork meal, wood meal and ochre.  The composition may be gelled by heating to 170 DEG C. and used to produce floor or wall coverings or as a leather substitute.
Patent GB-853741-A (GB)
Title: A process for the production of roasted pyrites of low arsenic content
IPC: C22B1/14
Filed: 1958-07-21
Abstract: The arsenic content of roasted or raw arsenopyrites is reduced by mixing the pyrites with one or more substances from the group alkaline earth metal oxides, chlorides, nitrates and sulphates and alkal earth metal hydroxides, sulphates, chlorides and nitrates and thereafter roasting at 500 to 900 DEG C. and leaching with sulphuric acid to remove the soluble arsenic compounds.  If already roasted arsenopyrites is to be treated it is preferably mixed with 5 to 10% of raw pyrites.  The additive, normally in amounts between 0.5 and 10% by weight of the pyrites to be treated, is applied to the pyrites as a solution or suspension and, depending on whether the furnace is charged wet or dry, the charge may or may not be dried before roasting.  Alternatively a solution or suspension of the additive may be sprayed into the roaster before or during roasting.  Fluidized-bed operation is preferred.  According to Examples (1) raw arsenopyrites of average grain size of 2 mm. was treated with a milk of lime solution and the treated mass was fed to the top of the fluidized-bed furnace maintained at 800 DEG C.  Sulphur dioxide containing gases was withdrawn and after a retention time of 4 hours the roasted ore was withdrawn and was leached at 200 DEG C. with sulphuric acid which dissolved out the arsenic to reduce the final arsenic content to 0.06%.  (2) Roasted arsenopyrites of average grain size of 1.5 mm. was mixed with raw pyrites of average grain size 1 to 2 mm. in the proportion of 6 to 1 and treated with a solution of magnesium sulphate and potassium hydroxide.  The charge after impregnation was dried and fed to an air fluidized furnace maintained at 700 DEG C. The product after leaving the furnace was leached with sulphuric acid as before.
Patent GB-171745-A (GB)
Title: Improvements in or relating to metal slitting and cutting machines
IPC: B23D7/00
Filed: 1920-08-11
Abstract: 171,745. Donisthorpe, H. W. Aug. 11, 1920. Driving-gear. - Driving-mechanism for metal slitting and cutting machines comprises a fastrunning shaft 3 which drives the cutter and, by means of worm gear 10, 5, a sleeve 8 loosely mounted on a shaft 2. The sleeve carries at one end a half-clutch 6 and at the other a worm 4 in gear with a worm wheel 11 on a shaft 1 which actuates the feed-mechanism. The shaft 1 carries a cam 19 which at intervals through a bell crank 17 puts in gear the half clutch 12 to rotate the shaft 2, which actuates a work-holding device.
Patent GB-963460-A (GB)
Title: Maximum and minimum length control for a rolling mill shear
IPC: B21B37/70
Filed: 1962-06-19
Abstract: 963,460. Shearing; cutting ingots. MORGAN CONSTRUCTION CO. June 19, 1962 [Sept. 1, 1961], No. 23580/62. Headings B3A and B3W. In a system for shearing a long strip of material as it is produced (e.g. from a rolling mill) into standard short lengths (e.g. 185 ft.) means are provided to ensure that the remaining material at the end of the long strip is not less than a certain minimum length (e.g. 75 ft.). These means comprise a strip detector 14, Fig. 1, in the path of the strip before it reaches the shears 16, a survey counter 21 which, under the control of the detector 14, determines what the remaining length of strip would be if as many complete standard lengths as possible were cut from the strip, and a master counter 22 which controls the shears 16 and which, if the computed remaining length of strip is less than the minimum length (= 75 ft.), causes a length of strip (e.g.= 100 ft.) intermediate between the minimum length (= 75 ft.) and the standard length (= 185 ft.) to be cut off whereby the remainder, which would have been less than the minimum length is increased (by 85 ft.) sufficiently to ensure that it is larger than the minimum. The capacity of the survey counter 21 is set, 24, 26, to correspond to the standard length and it counts pulses from a device 28, while strip is passing the detector 14. A further count 25, 27 can also be set in the survey counter corresponding to the minimum length (= 75 ft.) and if when the end of the strip passes the detector 14 this minimum count has not been exceeded a signal is passed to the master counter 22. The master counter is also set to a capacity corresponding to the standard length and is controlled by a strip detector 18 adjacent to the shears. A further count 32, 35 corresponding to the intermediate length, can be set in the master counter and when the survey counter indicates that the remainder will be less than the minimum length the master counter causes a length equal to this intermediate length to be cut off. A third count, 33, 36, can also be set into the master counter to compensate, at the beginning of each new long strip, for the distance between the detector 18 and the shear.
Patent GB-351794-A (GB)
Title: Improvements in or relating to refrigerating apparatus
IPC: F25B17/06
Filed: 1930-08-06
Abstract: 351,794. Refrigerating. GAS LIGHT & COKE CO., CLARK, J. G., MASTERMAN, C. A., and ANDREW, L. W., 84, Horseferry Road, and TURNER, G. A., 42, Marlborough Hill, St. John's Wood, both in London. Aug. 6, 1930, No. 23583. [Class 29.] Absorption machines.- The generator-absorber 1 and the evaporator-condenser 4 of a reversing machine are rigidly connected by the members 11, 12 mounted upon a shaft 15 rotatably supported by the tank 14. In the generating position shown in Fig. 1, cooling-water flows into a pivotally mounted perforated distributer 16, the rate of supply to which is greater than its rate of discharge so that it tilts to the left and, through a rod 21, opens the gas supply valve 22 to a pipe 42, Fig. 2, connected through a knuckle joint 3 to the burner 2. The cooling-water flows over the evaporator-condenser 4 into the tank 14, a portion of it being directed by a gutter 7 and a pipe 6 into an open-topped jacket 5 surrounding the generator-absorber. This arrangement prevents overheating of the generatorabsorber in the event of the burner being inadvertently left alight. The evaporator-condenser is provided with lugs for the attachment of an icecream freezer 31, Fig. 3, having mixing blades 36 secured to a plate 35 mounted on a rotatable shaft 34.
Patent GB-862856-A (GB)
Title: Improvements in and relating to secondary radar systems
Inventor: ALLEN ALARIC
IPC: G01S13/76
Filed: 1959-07-10
Abstract: 862,856. Transponder apparatus; radar. COSSOR Ltd., A. C. July 31, 1959 [July 10, 1959], No. 23773/59. Classes 40(5) and 40(7) A transponder is provided with two delay circuits and a coincidence circuit whereby it responds either to pulse groups consisting of a pulse A, Fig. 1, radiated from an omnidirectional aerial and followed by a pulse B radiated from a directional aerial, or pulse groups consisting of pulses A 1 , B 1 , Fig. 2, separated by the same time interval as pulses A, B, and radiated from a directional aerial and in the interval between those pulses a pulse C 1  radiated from an omnidirectional aerial. In the examples given, in the first system pulses A and B are separated by 8 Ás, and in the second system pulses A 1  and B 1  are separated by 8 Ás and pulses C 1  and B 1  by 6 Ás. The pulses radiated from the omnidirectional aerial prevent response to side lobes of the directional aerial. As shown the received pulses are fed to a coincidence gate 12, to a delay network 13 introducing a delay of 8 Ás, and via a cathode follower 23 to a delay network 15 introducing a delay of 6 Ás. The output of the circuit 13 supplies one input to an adder 14, the remaining input being supplied from the network 15 through an inverter 16. The output of the adder 14 supplies the other input to the gate 12 which produces an output only when pulses in a predetermined amplitude relation occur simultaneously at its input terminals, and triggers the responder transmitter in known manner. Assuming that pulse groups consisting of pulses A and B, Fig. 1(a), are received the pulses supplied to the adder 14 through the delay circuit 15, Fig. 1(b), will have no effect but the pulses supplied via the circuit 13, Fig. 1(c), will produce simultaneous pulses at the gate 12, which will produce an output if the pulse amplitudes are in the correct relation. If the signal A 1 , C 1 , B 1 , Fig. 2, is received, a pulse At <SP>11</SP>1<SP> </SP>from the delay circuit 13 will be reduced in amplitude by a pulse C<SP>1</SP> 1  from the inverter 16 and supplied to the gate 12 in coincidence with the pulse B 1  to produce an output signal. When reception is from a side lobe the amplitude of the resultant pulse from the adder 14 will be too low to actuate the transponder. In an alternative arrangement the separate delay networks are replaced by a tapped delay line and one or more pulse lengtheners may be introduced.
Patent GB-737964-A (GB)
Title: Improvements in rotary regenerative preheaters
IPC: F28D19/04
Filed: 1953-08-28
Abstract: 737,964. Regenerative heat-exchangers. SVENSKA ROTOR MASKINER AKTIEBOLAG. Aug. 28, 1953 [Sept. 6, 1952], No. 23784/53. Class 64 (1). Relates to rotary regenerative air preheaters having a rotor which is divided by radial partitions 1 into sector-shaped compartments and which rotates within a stationary housing having end plates disposed opposite the rotor ends and apertured to allow the streams of heating gas and air respectively to flow through the rotor, the imperforate end-plate portions between the apertures or channels for the two fluids overlying and rendering inoperative at least one rotor compartment lying at any instant in the transition zones between the air and gas channels. According to the invention, movable sealing plates disposed between the end plates and the rotor end faces are provided at the transition zones at each end of the rotor, corresponding pairs of plates, e.g. 2, 2<SP>1</SP> and 3, 31, at opposite ends of the rotor being inter. connected by a connecting plate, e.g. 4, 5. The positions of the sealing plates and the connecting plate with respect to the rotor are adjustable whilst at the same time resilient yielding of said plates away from the rotor is permitted. Co-operating strips such as 14, 15 (Fig. 3) and 17, 18 (Fig. 4) are provided respectively on the sealing and connecting plates and on the stationary housing structure, and these strips together with the sealing and connecting plates and the adjacent parts of the housing form interconnected sealed chambers 21, 21<SP>1</SP> and 22 which are pressure balanced. The weight of the sealing system is counterbalanced by a weight pivoted on an arm carried on the upper end plate (Fig. 2, not shown). Strips 9 extending from the rotor shell co-operate with the plates 4, 5 to prevent intercommunication between the air and gas streams through the space outside the rotor.
Patent GB-934243-A (GB)
Title: Improvements in shopping trolleys
IPC: B62B3/10
Filed: 1961-06-30
Abstract: 934,243. Collapsible carriers. F. WANTOCK. July 2, 1962 [June 30, 1961], No. 23804/61. Class 108(1). A carrier has a frame comprising diverging vertical members 2 and 3 connected at their lower ends by the axle 5 and strut 14 and at their upper ends by a horizontal member 4 which carries hooks 19 to engage the hooked stiffeners 28, 29 of the fabric bag. The U-shaped stand 13 is pivoted in the sleeve 16 and the frame 7 is pivoted in the side frames 2, 3, the cross piece 11 secured to the frame 7 releasably retaining these parts in position.
Patent GB-870445-A (GB)
Title: Improvements in or relating to the reeling of flexible elements
Inventor: CROSS MALCOLM STEWART BARRINGT
IPC: A62C33/04
Filed: 1956-08-03
Abstract: 870,445. Slack-preventing. METROPOLITAN TOOL & PRODUCTS Ltd. Oct. 14, 1957 [Aug. 3, 1956], No. 23946/56. Class 78 (2). Electricity (or compressed air) is supplied underground to a coal-cutting machine by cable 11 wound on drum 5 driven through gear-box 3 by electric motor 1. The motor is driven continuously in one direction. It therefore winds in the cable as the machine advances towards drum 5 and, as the machine retreats away from drum 5, opposes the winding-off of the cable and so maintains the tension thereof, the slip taking place between the rotor and the starting coils of the motor. The motor 5 has high resistance and a large cover to help dissipate heat and may be cooled by a blower. Electricity (or air) is supplied to cable 11 through slip ring (or gland) 12. Driven screw 10 reciprocates element 9 to guide the cable on to the drum.
Patent GB-749647-A (GB)
Title: Method of and apparatus for the fabrication of doors made of resin-impregnated fibrous materials
IPC: B29C65/00
Filed: 1953-08-31
Abstract: 749,647. Building units. MONTECATINI SOC. GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. Aug. 31. 1953 [Sept. 18, 1952], No. 23982/53. Class 87(1). [Also in Group VIII] An assembly of resin-impregnated wood side and end frame members and a central panel consisting of a layer of resin-impregnated compressible filling or insulating material arranged between inner sheets of resin-impregnated bonding material and outer sheets of resinimpregnated facing material is secured against lateral expansion and subjected to heat and pressure so as to bond the facings, bonding sheets, filling layer and side and end frame members together and to compress the filling layer to form a unitary door structure. The filling layer may be of wood fibres conglomerated with adhesive and impregnated with thermosetting or thermoplastic resins, or resinimpregnated cardboard-backed honeycomb material. As shown, Fig. 2, the frame members may comprise a flat portion 4 and an angle portion 4<SP>1</SP> which are united during the pressing operation to form a channel section member. The filling 1, bonding layers 2 of resin impregnated paper and facing layers 3 of resin-impregnated paper or veneer are assembled on a press plate 5 within the frame members. An additional press plate (not shown) large enough to compress the frame members as well as the central panel is used for the bonding operation. Fig. 5 shows a part section of a flush door in which the frame members 11 are of T-section material and the filling 8, bonding layers 9 and facing layers 10 are compressed to the same thickness as the frame members. The assembly is secured against lateral expansion by iron strap members which are clamped round the edges by for example screws engaging lugs on the members. These may be laminar or of angle or channel section materials.
Patent GB-1244277-A (GB)
Title: Isolation of orgotein from blood
Inventor: HUBER W
IPC: C12N9/02
Filed: 1969-05-12
Abstract: 1,244,277. Isolating orgotein from blood. DIAGNOSTIC DATA, Inc. 12 May, 1969 [13 May, 1968; 10 April, 1969], No. 24140/69. Heading A5B. [Also in Division C3] A process for isolating substantially pure orgotein from erythrocytes comprises separating the hemoglobin from hemolysed plasmafree erythrocytes; heating the hemolysate in a buffer solution having a pH range of from 1-4 and 6-11 containing divalent metal ions, e.g. Mg<SP>2+</SP>, Cu<SP>2+</SP> or Zn<SP>2+</SP>, until the carbonic anhydrase is inactivated; discontinuing the heating, removing all precipitated material and separating orgotein from the supernatant. A pharmaceutical composition comprises orgotein and a carrier, e.g. in the form of an injectable sterile protein solution. Fructose, sucrose or other saccharide may also be present.
Patent GB-365997-A (GB)
Title: Improvements in or relating to tobacco cutting machines
IPC: A24B7/10
Filed: 1930-08-13
Abstract: 365,997. Cutting tobacco. MOLINS, W. E., RUAU, F. F., DEARSLEY, G., CHICHESTER, M. B., and MOLINS MACHINE CO., Ltd., 2, Evelyn Street, Deptford, London. Aug. 13, 1930, No. 24236. [Class 5 (i).] In a tobacco leaf cutting machine in which the cutting blade (or blades) rotates in one direction about an axis fixed relatively to the mouth through which the tobacco is fed, means are provided for automatically grinding the cutting blade or blades during rotation. Blades 1 mounted to project through the inner faces of carriers 2 are rotated on arms about an axis fixed relatively to the mouth 11 through which tobacco is fed by means of a conveyer band 12 and fluted rollers 14 .. 17, 18a; the rollers 15, 16, 17 are mounted on a pivoted, weighted frame 18 connected to a bracket 21 which also carries the upper lip 23 of the mouth 11, shaped as shown in Fig. 5 ; the member 25 serves both as a lower lip of the mouth 11 and as a scraper for the roller 14. Each blade 1 is mounted in a slide 3 to which is attached a screwed rod 4 on which is mounted a ratchet wheel 6. A pawl 7 oscillated by a lever 8 turns the wheel 6, the lever 8 being rocked by a rod 9. The rod 9 is periodically pressed forward by means of levers 41, 42 operated by a cam 40, a change wheel being provided in the gearing driving the cam to control the rate at which the blade is fed forward ; a hand lever 43 is provided for initial adjustment. The blades are maintained rigid by mounting in bent passage ways in their holders, the cutting edge being inclined to the width of the blade plate. The blades are ground by a cup emery wheel 26, across which a diamond 27, pivoted at 27a, is reciprocated by a crank 28 and levers. The wheel 26, carried in a slide 31, is fed forward by a screw 32 and ratchet wheel 33 operated by gearing 34..37 from a shaft 38, a band brake 39 being provided to prevent backlash.
Patent GB-207635-A (GB)
Title: Improvements relating to internal combustion engines
IPC: F02B25/18
Filed: 1923-06-07
Abstract: 207,635. Holder, F. J. June 7, 1923. Spray carburettors.-Liquid fuel is supplied from a float chamber f to the air passing through a transfer passage e from the crank case. The fuel is sprayed by an air jet from a nozzle h<1> also supplied with compressed air from the crank case. The air jet may be controlled simultaneously with the mixture throttle e<1>.
Patent GB-1104361-A (GB)
Title: Process for preparing allyl chloride and its monomethyl-substitution products
IPC: C07C17/158
Filed: 1965-06-08
Abstract: Allyl chloride or a monomethyl-substitution product thereof is obtained by reacting oxygen with (a) a mixture of a C3 or C4 olefin and hydrogen chloride, or (b) a C3 or C4 monochloroparaffin, or (c) a mixture of (a) and (b) in the presence of, as catalyst, ruthenium, rhodium, palladium, iridium, platinum or palladium-II-oxide, or a mixture comprising more than one of said elemental catalysts.  The catalyst may be supported on a carrier material and the catalyst system suitably contains 0.1% to 25% by weight of elemental catalyst, or 1% to 40% by weight of palladium-II-oxide calculated on the total weight of catalyst and carrier material.  The reaction may be effected at a temperature of 20-350 DEG  C. and a pressure of 0.2-20 atmospheres (absolute) and an inert gaseous or liquid diluent may be present.
Patent GB-1299788-A (GB)
Title: Dye nitrates
IPC: C09B11/12
Filed: 1970-05-20
Abstract: 1299788 Dye nitrates BADISCHE ANILIN- & SODA-FABRIK AG 20 May 1970 [21 May 1969] 24336/70 Heading C4P  The invention comprises the dye nitrates of the formulae They are prepared by (a) double decomposition, e.g. of the corresponding dye hydrochloride or zinc chloride salts with an alkali metal or alkaline earth metal nitrate, e.g. Na, K, Ca or ammonium, optionally in presence of nitric acid, or (b) by reaction of the dye base with nitric acid. The dyes are used to prepare inks and pastes for ball point pens.
Patent GB-799972-A (GB)
Title: Addition agents for the treatment of molten cast iron
IPC: C22C28/00
Filed: 1956-08-08
Abstract: An addtion agent for treating cast iron consists of Mg 17.0-50.0 per cent, Ca 2.8-10.0 per cent, Fe 0-30.0 per cent, Si at least 35.0 per cent, the quantity of Si being at least sufficient to combine with the Mg, Ca and Fe as silicides and the ratio of Mg to Ca, when Mg is between 17 and 25 per cent, ranging from 5.7 to 9 and the same ratio, when Mg is above 25 per cent, ranging from 4 to 9.  Up to 2 per cent of cerium, mischmetal or metals of the lanthanum group may also be present.  Specification 630,093 is referred to.
Patent GB-1282077-A (GB)
Title: Safety closure device
IPC: B65D41/06
Filed: 1971-04-19
Abstract: 1282077 Safety closure EYELET SPECIALTY CO 19 April 1971 [25 Nov 1970] 24365/71 Heading B8T A safety closure comprises a bottle 10 narrowing to a neck 12 having bayonet sockets 13; and a cap 11 having lugs 15 spaced around its inside wall. The cap is secured by pressing it down over the neck of the bottle against the resistance of a depressed portion 16 of the cap top, which fits into the neck of the bottle and is resiliently deformed against it providing a spring seal. Pressure on the cap forces one of the lugs 15 into each socket 13 and it is twisted against sloping side wall 28 and slides down it, Fig. 7. When the lug has cleared the projecting wall 24 it is free to spring back to its normal shape in the space below undercut 21, and is forced up against 21 by the action of portion 16, Fig. 8. To remove the cap it must be pushed down and turned so that the lug is once more twisted against wall 28, Fig. 9, then it is withdrawn while maintaining the turning force so that the lug slides over walls 28, 25. This combination of actions makes accidental opening unlikely. Further lugs 13<SP>1</SP> are provided on the neck to engage free cap lugs to stabilize the cap when secured. The spacing between adjacent lugs is preferably less than the width of each socket to ensure that a lug is always aligned with a socket, and the cap can be pressed straight on.