baber/WOPTO huggingface dataset:
Patent GB-1316018-A (GB)
Title: Suction-operated device for feeding sheets
IPC: B65H3/08
Filed: 1971-07-14
Abstract: 1316018 Feeding sheets MABEG MASCHINENBAU GmbH 14 July 1971 [16 July 1970] 32954/71 Heading B8R A suction device for separating sheets 31, Fig. 4, one by one from the top of a pile 2, and feeding them to a point of utilization comprises a cylinder 1, Figs. 1, 2 and 4, open to atmosphere at the top through an opening 30 and having a fixed bushing 16 having a central axial bore and ducts 19 therein. Above the bushing is slidable a piston 24 to which is attached a stop member 26 of adjustable length which slides in the bore in the bushing. Below the bushing is slidable a piston 4 having ducts 5 therein and a hollow tube portion 3 which passes through the bottom of the cylinder and causes a suction head 6 having ducts 10, 11, 12 leading into the space 13 in the tube 3. The piston 4 is urged upwards by a spring 15 to the position of Fig. 1. A conduit 22 connects the space 8 below the piston 4 to a source of suction or to atmosphere. In the initial position of the parts, there are, in addition to the space 8, spaces 23 and 21 respectively above and below the piston 24, and all the spaces are connected to atmosphere. When a sheet is to be picked up, suction is applied to the conduit 22. Vacuum is produced in the space 8, in spite of the influx of air through the ducts 10, 11, 12, and also through the ducts 19, 5, the latter causing a reduced pressure in the space 21 so that the atmospheric pressure in the space 23 depresses the piston 24 to its lowest position, Fig. 2, the stop member 26 protruding below the bushing and depressing the piston 4, so that the space 21 disappears and the air therein is transferred to a newly found space 20 below the bushing. Since the pressure in the space 8 is lower than in the space 20, the piston 4 continues to move downwards to the position of Fig. 4, when a sheet is picked up. As soon as air flow through the ducts 5 equalizes the pressure in the spaces 8, 20, the spring 15 moves the piston 4, with a sheet carried by the head 6, up to the position of Fig. 2, where it is stopped by stop member 26 which is acted on by atmospheric pressure from above. The device now moves the sheet to a point of utilization, and the suction is now disconnected from the conduit 22, as a result of which the sheet is released from the head, and the spring 15 returns the pistons to the position of Fig. 1, ready for the next cycle. The device can operate at 12000-14000 cycles (or sheets) per hour.
Patent GB-406830-A (GB)
Title: Improvements in and relating to the regulation of the voltage of a power supply system or other a.c. circuit
IPC: G05F1/14
Filed: 1932-11-23
Abstract: 406,830. Supplying consuming devices; transformers. FERRANTI, Ltd., and NORRIS, E. D. T., Hollinwood, Lancashire. Nov. 23, 1932, No. 33183. Addition to 341,903. [Classes 38 (ii) and 38 (iv).] Boosting by static transformers.-A voltage regulator comprises a pair of parallel paths connected across the supply circuit P1, P2 each consisting of two series connected windings 2, 3 disposed to possess considerable leakage reactance and associated with a movable short-circuit winding 4, the regulated voltage S1, S2 being obtained between the mid-points of the parallel paths. When the winding 4 is at the top and the winding 41 is at the bottom the voltage between S1, S2 is equal to and in phase with the voltage of the supply P1, P2. When the positions of the windings are reversed the voltage between S1, S2 is equal to but 180‹ out of phase with the voltage of the supply P1, P2. By shifting the coils 4 and 4<1> voltages between these two limits can be obtained. In a modification the connections from the circuit P1, P2 to the coils 21, 31 are reversed and the windings 4, 4<1> are mechanically coupled. In a further modification of this the coils 2, 2<1>, 3, 3<1> are arranged on a common core and associated with a single short circuited winding. This arrangement may be used for supplying the primary of a boosting transformer so as to get a positive or negative boost. In a further system for high voltage testing this arrangement supplies an auxiliary transformer, the secondary of which is in series with the primary winding of a main transformer. The maximum voltage across the secondary winding of this auxiliary transformer is equal in magnitude to the voltage of the supply P1, P2 so that the voltage across the primary winding of the main transformer may be varied from zero to twice the voltage of the supply P1, P2. Specification 368,592 is referred to.
Patent GB-1430463-A (GB)
Title: Process for the polymerisation of ethylene possibly in admixture  with 1-olefins
IPC: C08F10/02
Filed: 1973-07-12
Abstract: 1430463 Supported catalyst for ethylene polymerization VEBA-CHEMIE AG 12 July 1973 [12 July 1972] 33246/73 Heading C3P Ethylene is polymerized in the presence of (a) chromic acetylacetonate on a silica-containing material and (b) triisobutylaluminium in a molar ratio of (a) : (b) of 1 : 10 to 200. The process may be carried out in the presence of hydrogen, the ethylene may be copolymerized with other alpha-olefins, and the process may be effected in a hydrocarbon diluent or in the gaseous phase using a fluidized bed of polyethylene powder. Component (a) may be obtained (i) by introducing silica to a heated solution of the acetylacetonate in an aliphatic hydrocarbon whilst stirring or (ii) by spraying a heated solution of the acetylacetonate in an aromatic hydrocarbon on to the silica whilst stirring and evaporating the solvent. In examples, ethylene is homopolymerized or copolymerized with propylene using the above catalysts with silica as support medium, while comparative procedures use vanadium acetylacetonate on silica, tetrapropyl titanate on silica and chromic acetylacetonate on alumina as components (a).
Patent GB-1467185-A (GB)
Title: Dredge chains
IPC: F16G13/00
Filed: 1974-07-26
Abstract: 1467185 Chains R M GUNTERT 26 July 1974 [4 Sept 1973] 33249/74 Heading F2Q [Also in Division G1] Chains 1 for use in endless form as the drive means of a bucket dredging system comprise two alternating forms of link: a drive link 15 (Fig. 10) has parallel side plates 17, 18 rigid with end spools 27, and an intermediate link 16 (Fig. 8) has side plates 40, 41 at right angles to those of the drive link and rigid with spools 44 which engage between the spools of the drive link so that the axes of the spools engage at right angles ; complementary concave-convex bearing surfaces (Fig. 11) allowing pivotal movement between links about two perpendicular axes. Each spool is secured to a pin extending rigidly between side plates and is concave in section along the pin and convex (circular) in section across the pin.
Patent GB-203968-A (GB)
Title: A range-finder theodolite
IPC: G01C1/02
Filed: 1922-12-06
Abstract: 203,968. DevÚria, L. M. T. Dec. 6, 1922. Theodolites.-A Barr and Stroud range-finder is fixed to the upper plate of a theodolite in place of the usual telescope and its supports, one standard 2a of the range-finder carrying a graduated semicircular arc 5 on which angles of elevation and depression are indicated by an arm 6 fixed to the range-finder and carrying an operating handle 7.
Patent GB-637689-A (GB)
Title: Improvements in and relating to air supply means for aircraft cabins
IPC: B64D13/04
Filed: 1947-12-17
Abstract: 637,689. Automatic control systems for aircraft cabins. BRITISH THOMSON -HOUSTON CO., Ltd. Dec. 17, 1947, No. 33316. Convention date, Nov. 21, 1942. [Class 38 (iv)] An aircraft cabin is supplied with air from the input and output sides of the engine supercharger system intercooler so as to stabilize the cabin temperature. The cabin 20 is supplied with air through 24 from the input and output sides of the intercooler 15 of the supercharger system of engine 1. Temperature-sensitive device 33 energizes the motor 31 so as to position flap 28 to control the proportion of warm to cool air flowing to the cabin through 26, 27.
Patent GB-1482662-A (GB)
Title: Method of testing the quality of spherical particles
IPC: G21C17/06
Filed: 1974-07-29
Abstract: 1482662 Acoustic inspection of particles EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM) 29 July 1974 [30 July 1973]  33339/74 Heading G1G The quality of spherical particles is tested by causing them to impact a transducer the respective electrical outputs of which are amplified then fed to a high-pass filter. The numbers of signals  respectively fed to and passed by the filter are compared and the frequency spectrum of selected ones of the filtered signals is determined. In the Fig. 1 embodiment, nuclear reactor fuel particles are passed through a heating tube 2 to raise them to their normal operating temperature, then dropped on to transducer 3 which has electronic means to overcome the effect of internal acoustic reflection in the transducer. The transducer output signals are fed to filter 6 which passes only signals expected from defect-free particles. Counters 5, 7 establish the total number of particles and the number of defect-free particles respectively. The envelope and frequency spectrum of the transducer signals are analyzed using oscilloscope 9 to detect defects in, thickness of or faulty bonding between layers of material constituting the particles. Units 8, 10 and 11 are recording devices.
Patent GB-851871-A (GB)
Title: Improved magnesium alloys
Inventor: OLDS GEOFFREY CHARLES EDWARD
IPC: C22C23/00
Filed: 1957-10-25
Abstract: A magnesium alloy particularly for use as canning material for fuel elements of nuclear reactors has a composition in the following range in per cent by weight:  Zr 0.3-1.0.  Mn 0.05-0.5.  Zn 0-2.0.  Mg the remainder.  Reference has been directed by the Comptroller to Specification 806,104.
Patent GB-212306-A (GB)
Title: Improvements in writing-devices
IPC: B43L1/12
Filed: 1922-12-07
Abstract: 212,306. Inger÷, K. Dec. 7, 1922. No Patent granted (Sealing fee not paid). Writing tablets. - A renewable writing tablet comprises a coloured underlayer composed of a material such as oilcloth, the surface of which is practically undeformable, and two superposed leaves, the first leaf being practically transparent and prepared with a plastic mass, and the second leaf being quite transparent and of a material such as gelatine or celluloid that is unmarked by a pencil or the like. The first leaf is composed of a textile material such as thin linen or silk gauze prepared on the side adjacent the underlayer with a waxy material. The parts may be removably connected together, for instance by spring clips at the edges. When the second leaf is written upon, the first leaf is caused to adhere to the underlayer at the points exposed to pressure, so that the colour of the underlayer is rendered visible through the leaves, and the writing can be obliterated by lifting the leaves from the underlayer. The underlayer may consist of a number of relatively movable sections, so that parts of the writing can be obliterated without disturbing the remainder.
Patent GB-368213-A (GB)
Title: Improvements relating to mudguards for perambulators, children's motors or the like
IPC: B62B9/16
Filed: 1931-12-03
Abstract: 368,213. Mudguards for perambulators, &c. SPEEDWELL GEAR CASE CO., Ltd. and SPENCER, J., 276, Broad Street, Birmingham. Dec. 3, 1931, No. 33470. [Class 136 (i).] The stays 2 of a mudguard for perambulators, children's motor cars, &c. are connected to a plate 4 provided with a hole 8 whereby it may be directly bolted to the axle 7. The plate 4 is of angle section, the hole 8 being provided in the horizontal flange 5, which may be bent into channel form at 6 so as to engage the sides of the axle 7, in addition to engaging the top, when the plate is attached to the axle by a vertical bolt 9 engaging the hole 8. Two further holes 10 may be provided, so that the plate can alternatively be attached to the axle by means of a complementary clip plate engaging the underside of the axle in the usual way.
Patent GB-367040-A (GB)
Title: Improvements in domestic firegrates
IPC: F24B1/189
Filed: 1931-07-23
Abstract: 367,040. Open fireplaces. BURTON FOUNDRY CO., Ltd., Anglesey Road, and CAMPBELL, D. F., 232, Branston Road, both in Burton-on-Trent. July 23, 1931, No. 33621/30. [Class 126.] In an open fireplace comprising a rear flue c controlled by a sliding damper e connected by arms f to a sliding or pivoted canopy g, there being a flange h on the canopy which closes the front opening to the chimney when the canopy is pushed in, the rear flue c is formed by a flat plate a extending the full width of the grate, and the arm (or arms) f is pivoted to lugs h on the damper.
Patent GB-1478032-A (GB)
Title: Grinding tool
IPC: B24B23/02
Filed: 1974-07-31
Abstract: 1478032 Grinding tools; chucks DYNABRADE Inc 31 July 1974 [27 Aug 1973] 33683/74 Headings B3D and B3B A grinding tool, e.g. a pneumatic motor 30 driven hand held power tool, comprises a driving tube 16 for receiving an elongate uniform diameter grinding element 20, or other tools, or a mounting spindle (80) (Fig. 3, not shown) with a working end projecting from a front end 16a thereof, and locking means 22 carried by said front end 16a for releasably clamping said grinding element 20 intermediate its opposite ends. The locking means 22 comprises a nut screwable on the tube 16 to compress a deformable member, e.g. an O- ring or a conical sleeve, and a reducer sleeve 50 which has an end flange engaging the end of the drive tube 16 and against which the deformable member is compressed. A latch device 70 holds the drive tube 16 stationary while the nut 50 is rotated. The tube 16 may be internally coated with vibration clamping material and may be made of a plastics material. The tool casing 12 includes a rear opening 72 through which the rear-end of the grinding element 20 can protrude into a guard member 74. The motor 30 drives the tube 16 by means of a belt 38 and pulleys.
Patent GB-363080-A (GB)
Title: Apparatus for cleaning heating surfaces of dryers or other apparatus heated by oil-containing steam
IPC: F26B25/00
Filed: 1930-11-10
Abstract: <PICT:0363080/III/1> In an apparatus for cleaning the surfaces of driers, evaporators, condensers and similar apparatus through which oil-containing steam passes, with a volatile solvent such as alcohol or benzol, the solvent is vaporized in an evaporator and the vapours are led to the apparatus to be cleaned, where they condense and the condensate is led back to the evaporator while it contains oil and thereafter to a receiver.  Vaporize solvent passes from an evaporator b through a pipe c to the apparatus a to be cleaned, wherein the solvent condenses and dissolves the oily incrustation thereon.  The oil-laden solvent returns through a pipe i having a window l to the evaporator b.  When the apparatus a is clean, the solvent is recovered by distilling from the evaporator b through the apparatus a now acting as condenser, and condensed solvent passes through a pipe n to the receiver p.
Patent GB-887549-A (GB)
Title: Improvements in or relating to power transmission systems
IPC: B62D13/00
Filed: 1960-10-03
Abstract: 887,549. Driving trailers. ROISER, J. Oct. 3, 1960 [Oct. 16, 1959], No. 33790/60. Class 79(2). The drive from a tractor to a trailer or an implement is transmitted from a telescopic shaft 14 to a shaft 6 mounted at one end in a bearing 8 pivotable about a vertical axle 11 mounted on the centre line of the trailer and at the other end in a bearing 12 mounted for rotation about an axle 11<SP>1</SP> carried by the trailer turntable 5, the transmission being continued through a telescopic shaft 15, 16 to the tractor rear wheels or to an implement. The shafts may be joined by single or double universal joints and in cornering may assume the positions shown in Figs. 2, 3 and 4.
Patent GB-860310-A (GB)
Title: Novel herbicides and compositions containing them
IPC: C07C51/08
Filed: 1958-10-22
Abstract: The invention comprises 2,3,6 - trichlorophenylacetic acid, its salts, esters, amides and acid halides and a process for its preparation by side - chain monochlorinating 2,3,6 - trichlorotoluene to 2,3,6 - trichlorobenzyl chloride, treating the chloride with a metal cyanide to give 2,3,6-trichlorobenzyl cyanide and hydrolysing the cyanide with a strong acid to give the 2,3,6-trichlorophenyl-acetic acid.  The acid derivatives may be prepared from the acid or acid chloride in the usual way. Examples describe the preparation of the acid, the acid chloride, the methyl ester, the amide, the thioamide and the sodium, ammonium, methylamine and dimethylamine salts.  Several other salt, ester and amide derivatives are mentioned.ALSO:A herbicidal composition comprises 2,3,6-trichlorophenyl-acetic acid or an ester, salt, amide or acid halide thereof together with a chemically non-reactive diluent or carrier.  The composition may contain any of the usual solid or liquid carriers together with the customary emulsifying and/or wetting-agents and other known herbicides may be incorporated in the composition.  Lists of suitable diluents and known herbicides which may be used are given and examples describe typical compositions.
Patent GB-852748-A (GB)
Title: Improvements in or relating to backed-up rolling mills
Inventor: SAXL KAREL
IPC: B21B27/02
Filed: 1957-10-30
Abstract: 852,748. Rolling. IMPERIAL CHEMICAL INDUSTRIES Ltd. Oct. 24, 1958 [Oct. 30, 1957], No. 33837/57. Class 83 (4). A work roll for a back-up rolling mill has a primary camber extending over a centrally disposed portion only of the barrel length and the end portions of the roll are relieved sufficiently to ensure that, during rolling, the width of support between the backing roll and the work roll is so restricted as not to be substantially more than the width of strip to be rolled. In a mill having roll force capacity of 450 tons a pair of work rolls 6<1>/2 inches diameter and 32 inches barrel length for use with backing rolls 28 inches diameter and 32 inches barrel length the central camber of 0.0012 inch, the relieved end portion of 0.0045 inch camber over a length of 3 inches and a transition zone over 3 inches in which the two cambers merge are shown in the Figure by the lines A, B and C respectively. The central camber may be shorter or longer than the width of the strip.
Patent GB-446479-A (GB)
Title: Improvements in and relating to refrigerating machines
IPC: F25D23/06
Filed: 1935-12-06
Abstract: 446,479. Refrigerators. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Dec. 6, 1935, No. 33875. Convention date, Dec. 6, 1934. [Class 29] A refrigerator includes a cabinet having an inner metal liner 13 forming a compartment to be cooled and a refrigerant coil 16 for cooling this liner, refrigerant from the coil passing through a passage 28 in a shelf 17 in the compartment. A header 29 is provided to maintain the passage 28 in a flooded condition. Refrigerant from the compressor contained in casing 17 is forced through condenser coils 20 and 22 and the liquid refrigerant therefrom accumulates in float chamber 24. Coil 16 is supplied from this chamber and discharges refrigerant into a U-tube 27 connecting the header 29 and one end of passage 28. The other end of the passage is connected to header 29 by connection 30. The injector action of the refrigerant from coil 16 sets up a vigorous circulation between the header 29 and passage 28. Gaseous refrigerant passes from the header 29 through passage 31 to the compressor.
Patent GB-1255301-A (GB)
Title: Improvements in or relating to coke ovens
IPC: C10B27/06
Filed: 1970-07-13
Abstract: 1,255,301. Coke oven standpipes. KOPPERS CO. Inc. 13 July, 1970 [30 Sept., 1969], No. 33978/70. Heading C5E. A standpipe elbow lid 13, pivoted at 15, has a lug 19 which is adapted to be engaged by a member 27 on an arm 21 which is pivoted at 15 to move the lid from a closed to an open position. The member 27 is U-shaped, and movement of the arm 21 is limited by engagement of a bar 29 on the arm with the lug 19 at one extreme, and with the standpipe at the other, see Fig. 1 (not shown).
Patent GB-726418-A (GB)
Title: Removing gases from feed water in steam plants
IPC: B01J47/00
Filed: 1953-12-07
Abstract: 726,418. Feedwater supply systems. SULZER FRERES SOC. ANON. Dec. 7, 1953 [Dec. 18, 1952], No. 34013/53. Class 123 (2). In a feedwater supply system, harmful salts and dissolved or occluded gases, especially free oxygen, are removed from the make-up water by passing it through an ion-exchange purifying plant 1 and then through heat exchangers 2 and 3 into the main condenser 5 where degassing occurs due to the reduction in pressure. The heat exchangers 2 and 3 are supplied respectively with exhaust and interstage steam from turbine 4 and serve to preheat the makeup water, which has been cooled to a low temperature by the reaction occurring in plant 1, so that a substantially complete removal of gases can take place in the condenser. In a modification, the heat exchanger 2 is replaced by one in which the incoming impure make-up is brought into indirect heat-exchange contact with the colder water emerging from the purifying plant.
Patent GB-1519235-A (GB)
Title: Production of betalithium aluminate
IPC: C01F7/043
Filed: 1976-08-16
Abstract: 1519235 Beta-lithium aluminate INSTITUTE OF GAS TECHNOLOGY 16 Aug 1976 [20 Aug 1975] 34018/76 Heading CIA  Beta-lithium aluminate is prepared by admixing powdered alumina with a ternary Li-K-Na carbonates composition or a binary Li-K or Li-Na carbonates composition, heating to 480-550C to form lithium aluminate and raising the temperature to 600-650C to transform lithium aluminate to beta-lithium aluminate, the carbonates composition being selected so as to remain liquid under the reaction temperature conditions. Ambient pressures may be used, or moderately-low pressures up to a few hundred Kg/cm<SP>2</SP>.
Patent GB-301652-A (GB)
Title: Improvements in bearings
IPC: F16C33/26
Filed: 1927-12-15
Abstract: 301,652. Southorne, W. H. Dec. 15, 1927. Channels in vehicle-axle bearings and pulleys. -In a bearing in which the bush consists of a plurality of floating rings 7 capable of limited axial movement relatively to one another the rings 7 are arranged between a sleeve 8 in the bearing or hub 9, and a sleeve 6 on the axle 1. The sleeves 6, 8 may have slots 16 for lubricant forced into the bearing through a passage in the axle 1. The sleeves 6, 8 may be formed in sections, each part having a lubricant slot 16.
Patent GB-428479-A (GB)
Title: Improvements in wire-tying apparatus
IPC: B65B13/28
Filed: 1933-12-06
Abstract: 428,479. Twisting wires together. SAMPSON, H. W., 128, Sutherland Avenue, Maida Vale, London. Dec. 6, 1933, No. 34299. [Class 83 (iv)] The twisting pinion 2 of a wire-tying apparatus is made with a radial parallel twisting slot 1 merging into flared openings 4 in bosses 3.
Patent GB-954219-A (GB)
Title: An injection pump for internal combustion engines
IPC: F02M41/14
Filed: 1960-10-07
Abstract: 954,219. Fuel injection pumps. USTAV PRO VYZKUM MOTOROVYCH VOZIDEL PRAHA. Oct. 7, 1960 [Oct. 8, 1959], No. 34474/60. Heading F1A. A fuel injection pump of the type comprising a rotating distributor and radial plungers in a common cylinder actuated by an internally lobed stationary cam, has speed sensitive governing means which limits the outward stroke of the pistons. The loading of the governor spring may be adjusted or the piston stops may be externally adjusted as shown in Fig. 4 in which the governor weights 21 are connected by levers 18 to the piston stops 16, the levers 18 being pivoted on eccentrics 30 which may be rotated by axial movement of a sleeve 31 connected to a lever 27.