baber/WOPTO huggingface dataset:
Patent GB-1042163-A (GB)
Title: Improvements in or relating to automatic tracking systems
IPC: G01S13/50
Filed: 1963-04-17
Abstract: 1,042,163. Radar. COMPAGNIE GENERALE DE TELEGHAPHIE SANS FIL. April 17, 1963 [April 19, 1962], No. 15187/63. Heading H4D. In a missile radar system a ground beacon 2, Fig. 1, transmits unmodulated waves directly and via ground reflection to a missile which also receives the beacon transmissions reflected from a target aircraft 3 and in the missile receiver 1 a first mixing means is utilized to derive Doppler frequency signals therefrom, a second mixing means connected to the first and to a first tunable local oscillator (L.O.) derives a difference signal, a first feedback loop locks the frequency of that L.O. to a predetermined one of the Doppler frequencies, the output of a second L.O. is mixed with the Doppler frequency signals and is caused to vary in frequency cyclically between an upper limit and a lower limit equal to the aforementioned locked frequency, and a second feedback loop locks the frequency of the second L.O. to one higher than that to which the first L.O. is locked. Efficient operation when the target is low is thereby assured. The signals after first mixing are fed to further mixers 103, 110, Fig. 8, the former feeding into a discriminator and integrator 106 via a narrow band-pass filter 105 so as to initially increase the frequency of a L.O 104 until the Doppler frequency subtracted therefrom is the maximum groundecho Doppler frequency f max  (Fig. 2). No further signal is then passed by filter 105 and the voltage from source 107 causes the L.O. frequency to fall until f max  is again passed; thus L.O. 104 is tuned to beat with f max . A similar circuit locks second L.O. 111 to a Doppler frequency f B  of the echo from the target aircraft, which is the only echo of interest. When the frequencies of oscillators 104, 111 become equal a frequency comparator 119 discharges integrator 116 to begin another cyclic operation of L.O. 111.
Patent GB-355677-A (GB)
Title: Improvements in or relating to cooling devices for electrical generators
IPC: H02K9/18
Filed: 1930-05-17
Abstract: 355,677. Cooling air; heating water. AKTIEBOLAGET LJUNGSTRÍMS ANGTURBIN, 17, Võstra Trõdgardsgatan, Stockholm. Mav 17, 1930, No. 15198. Convention date, May 28, 1929. [Classes 29 and 64 (i).] An electrical generator provided with a cooling device has a casing which at one end is connected to the housing of the turbine driving the machine and at the other end supports the air cooling device or a part of the casing which contains that device. The application is shown to a machine in which a screw fan 9, Fig. 1, passes air radially over cooling elements 11, 12, through ducts 14 which occupy a portion of the inner periphery of the casing 6 and over the stator laminµ 3. The Specification as open to inspection under Sect. 91 (3) (a) discloses also the following :-(i) An arrangement of cool and hot air ducts 14, 16, Fig. 2 (Cancelled), and tangential cooling elements 11, 17, 18 removably inserted in the casing member 13 each of which consists of two cooling-water headers joined by a number of flattened tubes with corrugated gills over which the cooling air passes ; (ii) the cooling and feed-water system shown in Fig. 4 (Cancelled). The inlets 24 of the cooling elements 11, 17, 18 (Fig. 2, Cancelled) are tapped from a main 35 drawing its supply from a tank 36 which is filled from the condenser 31 by a pump 40 either through a water-cooled cooler 41 or a byepass 46. The outlets 25 of the elements are tapped to a common main 33 and suction pumps 34 such that if one of the elements should leak there is no passage of water into the generator. The boiler feed is drawn by a pump 37 from the pump 34 through a valve 43 which is coupled at 45 to a float in the tank 36 so that if the pump 34 sucks more water than is delivered at 39 to the tank the valve 43 is throttled by the float and water passes directly to the tank through an offset 38 either through the byepass valve 46 or, if this be closed, through the cooler 41, in which case a valve 48 between the condenser cold water pump 47 and the cooler 41 is opened. Thus, if little or no boiler feedwater is required, the cooling water for the air cooling elements 11, 17, 18 flows in a closed circuit. At a certain low level limit in the tank, the float opens a valve 49 to introduce fresh water. This subject-matter does not appear in the Specification as accepted. Specification 355,785 is referred to.
Patent GB-250423-A (GB)
Title: Improvements in hub caps for road vehicle wheels
IPC: B60B27/00
Filed: 1925-06-12
Abstract: 250,423. Ludlow, N. B. June 12, 1925. Hubs. - A hub closure comprises a polished metal cap 20 secured over a boss 12 formed on a flange-plate 10 adapted to be secured to the wheel. In the construction shown, the cap 20 is formed with an end flange 24 which abuts the plate 10, the boss 12 having a groove 14 into which the metal of the cap is worked as shown. The parts 20, 10 may be connected by discontinuous interengaging projections and recesses.
Patent GB-545254-A (GB)
Title: Improvement in toxoids
IPC: A61K39/085
Filed: 1940-10-14
Abstract: 545,254. Toxoids. PARFENTJEV, I. A. Oct. 14,1940, No. 15252. Convention date, Oct. 26, 1939. [Class 81 (i)] Toxoid of staphylococcus is prepared by digesting the toxin (filtrate from a growth of staphylococcus) with pepsin at a pH of 4.6 and at a temperature of 37‹C. for 14-16 hours. The pH is then brought to about 7 by neutralizing with alkali. The toxoid may be purified by adding solid ammonium sulphate to precipitate toxoid leaving products of digestion in solution. Further purification may be effected by absorption by calcium phosphate as described in Specification 535,089. Specifications 468,676 and 493,101 also are referred to.
Patent GB-350691-A (GB)
Title: Improvements in or relating to lever operated bolt fastenings
IPC: E05C1/06
Filed: 1930-05-20
Abstract: 350,691. Bolt fastenings. SHOWELL & SONS, Ltd. E., Stirchley Brass Foundry, Birmingham. May 20, 1930, No. 15420. [Class 44.] In a lever-operated bolt fastening the bolt 9 slidable in a guide 8 and housing 10 is connected by a cranked link 11 with the operating lever 12. The lever is pivoted at 13 between the upstanding sides of the housing 10 and in its extreme positions lies below these sides in contact with one or other of two transverse webs 10a, 10b, the former of which guides the bolt. A spring 14, housed in a recess in the bolt, has sliding contact with the back-plate 5. In the shot position shown, the disposition and cranked formation of the link 11 prevent endlong pressure on the bolt from communicating motion to the lever 12, so that the bolt can only be withdrawn by operation of the lever.
Patent GB-1098271-A (GB)
Title: Improvements relating to conveyors
Inventor: ROOKE SYDNEY WILLIAM
IPC: B65G47/48
Filed: 1964-04-14
Abstract: 1,098,271. Endless conveyers. SOVEX Ltd. April 14, 1965 [April 14, 1964], No. 15429/64. Heading B8A. Documents (not shown) are transferred in containers 21 from one station to a predetermined one of a number of stations in a conveyer system (Fig. 1, not shown). The system consists of an endless belt conveyer of arrangement of conveyers disposed in the form of a closed loop, there being spurs 11 and 12 leading off from the loop and other spurs 6, 7, 8 and 9, leading to respective elevators. At points at which the loop changes direction, fixed ploughs 16 or turn-tables 18 may be provided. The elevators may be of the construction described in Specifications 1,098,273 and 1,098,274. The containers may be controlled at junctions by counting apparatus as described in Specification 1,098,272. Each container 21 carries a pair of peg-like members 31, 32, each of which can be located in a respective series of positions located by the action of a spring-pressed ball 34 in conjunction with holes 35. The peg 31 projects upwardly and according to its preset position a, b, c &c. determines a point of deflection from the main conveyer loop. Each elevator 1, 2, 3 and 4 serves a number of delivery stations on different floors of a building, and the setting of the peg 32 determines at which elevator station the container will be discharged. It is necessary for each container to be placed on the main conveyer with the pegs 31, 32 disposed rearwardly. This can be checked automatically by a feeler 41 (Fig. 6, not shown), which is able to switch off the conveyer when it detects a wrongly oriented container. A panel (not shown) of indicator lights is provided so as to indicate whether a given path is clear. Arrangements are described for shutting down the conveyer. Openings leading to the elevators may be provided with roller shutters. An emergency stop switch is provided at each loading point. A control switch arrangement is provided to prevent discharge from an elevator when the shoot leading from elevator is occupied by another container. When pegs 31, 32 have been set to relate to impossible destinations the container concerned may be diverted to a location intended for such a purpose.
Patent GB-949367-A (GB)
Title: Composite sheet material
Inventor: DUFFIN EARLE RYAN
IPC: B32B27/00
Filed: 1959-05-05
Abstract: 949,367. Laminates. BOWATER RESEARCH & DEVELOPMENT CO. Ltd. April 29, 1960 [May 5, 1959], No. 15437/59. Heading B5N. [Also in Divisions B8 and F2] Composite sheet material comprises a sheet of synthetic resin (e.g. polyethylene) selfadhered to a surface of a sheet of fibrous material (e.g. paper, which may be crÛped) except along one side or edge of the fibrous sheet, whereby the synthetic resin sheet, over the marginal area, is unattached to a corresponding marginal area of the fibrous sheet. Such composite material may be made by withdrawing a web of the fibrous material continuously from a supply, continuously laying a strip of synthetic resin along one edge of the web, continuously extruding hot a sheet of synthetic resin and applying it whilst in a soft and tacky state over the surface of the fibrous web, and causing the sheet of synthetic resin to adhere to the fibrous web, except where the latter is masked by the strip of synthetic resin. In a modified method, one or more strips of synthetic resin are laid on the fibrous web between its edges, the layer of synthetic resin is applied, and the compound web is then slit along or next to one edge of each strip to provide a plurality of lengths of the composite sheet material. Alternatively, the chosen area may be masked by means of a fluid or powder applied to the fibrous web. The product may be used to make tubes and bags (see Divisions B8 and F2).
Patent GB-457462-A (GB)
Title: Improvements in or relating to apparatus for the manufacture of granule coated webs
IPC: B24D11/00
Filed: 1935-05-27
Abstract: 457,462. Granule - coated webs. TENNANT, W. J., 111, Hatton Garden, London.-(Carborundum Co. ; Nagara Falls, New York, U.S.A.) May 27, 1935, No. 15456. [Class 60] Apparatus for making granule-coated webs comprises supporting means for a web having its adhesive coated surface directed downwards, a support below the web for granules, an electrode above the web and a co-operating electrode below the granule support consisting of a beater operating on the underside of the granule support, whereby the granules are oriented and projected on to the web by combined electrostatic and mechanical forces. A web P passes around adjustable guide rolls 10, 11 with its adhesive coated surface downward. Granules are supplied from a hopper 19 to an endless belt 14 of rubberized fabric. An upper electrode 23 of good conducting material, e.g. metal, is supported by lugs 22 above the web P. The lower electrode situated below the upper run of the belt 14 is a rotary beater 28 consisting of a central metal shaft 29 enclosed in a sheath 30 of poorly conducting material and blades 31 also of poorly conducting material. Low conductivity electrodes may be located on each side of the beater and consist of a metal plate 25 surrounded by a sheath 26 of poorly conducting material. After deposition of the granules the adhesive is set by air from a blower 36 and the web is passed to a drier (not shown). Specification 433,128 is referred to.
Patent GB-485960-A (GB)
Title: Improvements in and relating to rosin for treating violin and like bows
IPC: C08J5/00
Filed: 1937-06-04
Abstract: Rosin for treating violin and like bows is produced by powdering commercial colophony and then forming a solid body therefrom by pressure.  For example, colophony dust, with or without a binding agent, is placed in a tubular die and subjected to the action of a press ram.  The rod of rosin thus obtained may be subdivided by sawing or cutting.ALSO:Rosin for treating violin and like bows is produced by powdering commercial colophony and then forming a solid body therefrom by pressure.  For example, colophony dust, with or without a binding agent, is placed in a tubular die and subjected to the action of a press ram.  The rod of rosin thus obtained may be subdivided by sawing or cutting.
Patent GB-798136-A (GB)
Title: Improvements in or relating to cans
IPC: B21D51/44
Filed: 1956-05-18
Abstract: 798,136. Opening cans by tearing. CONTINENTAL CAN CO., Inc. May 18, 1956 [July 6, 1955], No. 15632/56. Class 66. [Also in Group XXII] A body blank for a can structure is formed with a tear strip 10, Fig. 3, by feeding the blank in the direction of its length through scoring roll means to define the tear strip 10 by score lines 9 and then through embossing and flattening roll means to simultaneously form ribs 16, 17, 18 along the tear strip and flatten out waves created during the scoring action. The intermediate rib 16 projects inwardly and the other two ribs 17, 18 project outwardly, of the blank. The rib formation terminates short of the ends of the body blank but the score lines 9 extend from one edge to a tongue extension at the other edge. The finished can has an internal collar 11, Fig. 1, curled inwardly at its upper end 12 and anchored as at 13 in an outwardly directed bead 14 in the can body. The collar 11 is in contact with the inwardly projected rib 16.
Patent GB-594121-A (GB)
Title: Improvements in silicon rectifying elements
IPC: H01L21/288
Filed: 1943-09-23
Abstract: A silicon rectifying element is produced from an ingot formed by melting silicon of a purity in excess of 99 per cent. under conditions to prevent contamination by cutting a plate which when forming part of the ingot had a position lying parallel to the surface of the ingot which was first to cool.  An ingot of silicon is made from powdered silicon of 99.5 per cent. purity in a silica crucible 11 which is heated in high vacuum or in an inert atmosphere to a temperature about 200 DEG  C. above the melting point of silicon.  The crucible is then cooled slowly until a thick crust has solidified, after which the crucible is cooled quickly. The ingot so formed is found to comprise three distinct zones. The upper zone or P-zone which has cooled first is an efficient detector when the silicon is the electropositive member and has a high specific resistance, the lowermost zone N operates best when it is the electronegative member and has a low specific resistance, while the intermediate barrier zone B has somewhat indeterminate qualities.
Patent GB-1093796-A (GB)
Title: Keyboard locking device for data processing apparatus, particularly teleprinters
Inventor: KAHLERT WERNER
IPC: H04L13/16
Filed: 1965-04-13
Abstract: 1,093,796. Keyboard for teleprinters &c. FERNMELDEWERK ARNSTADT VEB. April 13, 1965, No. 15761/65. Heading B6F. A keyboard locking device operated by an electric signal comprises a solenoid 2, a core 3, and a shaft 4 carrying at the end a pressure plate 7, which upon being drawn to the right by the solenoid, Fig. 1, compresses all the pairs of locking elements 5 together and against a fixed stop 12. Bolts 14 linking the locking elements 5 engage in slots in the key-levers 13 so that when the solenoid is operated and discs cannot move, all the keys are locked against operation. The device is used in data-processing apparatus and teleprinters.
Patent GB-544891-A (GB)
Title: Dump wagon
IPC: B62D53/08
Filed: 1940-10-30
Abstract: 544,891. Dumping vehicles vehicle couplings. ARMINGTON, G. E., ARM1NGTON, S. F., and EUCLID ROAD MACHINERY CO. Oct. 30,1940, No. 15850. [Classes 103 (v) and 108 (i)] A dumping trailer vehicle comprises upwardly and outwardly inclined side and end walls 4, 5, 6 and a pair of bottom doors 8 (shown open) hinged to the lower edges of the sides. The floor formed by the closed doors slopes upwardly towards the rear so that the capacity of the vehicle in transverse section decreases towards the rear and the vehicle clears the load when moved forwardly after dumping. Stub axles for a pair of rear wheels project from legs 10 which extend from the end wall 6 and are reinforced by the bottom rails 4a of the sides and by a transverse bar. The doors may be operated by a winch 9. For supporting and coupling the vehicle to the tractor a pair of converging bars 13 carry a head 14 adapted to turn about a vertical post on a yoke 18 having a longitudinal pivot connection 17 with a member 16 free to rock upon a transverse bar 15 secured to the tractor frame a. The longitudinal pivot 17 is disposed at substantially the same height as the centre of gravity x of the loaded vehicle so that it is stable as regards lateral canting. The bar 15 is disposed forwardly of the rear axle of the tractor.
Patent GB-1459517-A (GB)
Title: Method of protecting beaches against hydrocarbon oil contami nation by means of microorganisms
IPC: C12N1/26
Filed: 1974-04-10
Abstract: 1459517 Using micro-organisms to protect beaches &c. against oil EXXON RESEARCH & ENG CO 10 April 1974 [9 May 1973] 15865/74 Heading C6F Beaches and shoreline solid surfaces including rocks, concrete and jetties are protected against hydrocarbon oil contamination by spraying them with an aqueous slurry of viable micro-organisms selected from the following three species: Arthrobacter nov. sp. ATCC No. 21908, Micrococcus denitrificans ATCC No. 21909 and Achromobacter nov. sp. ATCC No. 21910. The slurry may be produced by addition of an anhydrous powder comprising a freeze-dried admixture of the viable cells and an inert carrier or adsorbent (specified) to sufficient water e.g. seawater to give concentrations in the range 10<SP>5</SP>- 10<SP>8</SP> cells per gram-mole of water.
Patent GB-202962-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B04B7/04
Filed: 1923-06-20
Abstract: 202,962. Aktiebolaget Separator. Aug. 24, 1922, [Convention date]. Density separators.-In order to prevent a separated liquid becoming mixed with atomized particles of another liquid from which it is specially desired to keep it free, a partition I is provided adjacent to the wall of a receiver C whereby a current of air is produced circulating through the chamber H so formed and up into the other receiver F. An inward current in the chamber H is produced owing to the centrifugal action in the whirling current of air below the partition I, causing an increased pressure towards the periphery of the partition whilst air in the interior of the chamber does not partake of the whirling motion. Specification 13859/09 is referred to.
Patent GB-1099625-A (GB)
Title: A rotary control switch for use in controlling a sewing machine
IPC: H01R39/00
Filed: 1966-04-12
Abstract: 1,099,625. Rotary distributers. QUICKROTAN BECKER & CO. April 12, 1966 [April 13, 1965], No. 16071/66. Heading H2B. A rotary switch has independently adjustable sliprings 8, 9, on a rotary carrier shaft 1 and in conductive bearing contact, the sliprings being pressed together in the axial direction by a clamping screw 11 whose counter-bearing has a ball bearing 14 in a housing 19, 21, which houses the slipring brushes 22, 23, 24, 25. The sliprings have interrupter positions and serve to stop a sewing machine, operated by an intermittently running motor, in predetermined positions. The head 2 of shaft 1 is normally connected to the hand wheel (not shown) of the sewing machine, and sliprings 7, 8, 9 are carried on portion 6 of shaft 1, with slipring 7 secured for rotation with shaft 1 by a projection 28. Sliprings 8, 9 are freely rotatable on shaft 1 after releasing screw 11. The sliprings 7, 8, 9 are embedded in a body (15) of a synthetic plastics material (Fig. 2, not shown), e.g. by injection moulding, and consist of German silver. A covering hood 30 is removable to allow easy cleaning of the sliprings. The brushes are connected via a cable 26 with the controlled motor, and sliprings 8, 9 are alternately energized by means of a reversing switch.
Patent GB-772701-A (GB)
Title: Stitch-length indicator for a sewing machine
IPC: D05B27/22
Filed: 1955-06-03
Abstract: 772,701. Sewing-machines. SINGER MANUFACTURING CO. June 3, 1955 [June 15, 1954], No. 16074/55. Drawings to Specification. Class 112. In a sewing-machine having an angularlyadjustable feed-regulating member actuated by a lever movable in a slotted gate, the setting is indicated by an index element visible through a slot in the gate adjacent to which a graduated scale is provided, the index element being carried by the feed-regulating member.
Patent GB-162211-A (GB)
Title: Improvements in, or connected with, shaft couplings
IPC: F16D1/12
Filed: 1920-06-14
Abstract: 162,211. Willcox & Gibbs Sewing Machine Co., Ltd., (Merritt, A. A.). June 14, 1920. Shaft couplings.- In rigid shaft couplings, provided with angularly adjusting means for phasing two lengths of shaft coupled thereby, and especially applicable to the timing of the trains of mechanism driving the needles &c. and the loopers &c. respectively situated above and below the work-plate of a sewing-machine, a sleeve. 12 is secured on the opposed ends of shafts 10, 11 by taper-screwed nuts 13, operating to contract the split ends of the sleeve on to the shafts, a set-screw 14 being carried by the sleeve, and engaging a depression 15 in the shaft 10, while a similar set-screw 18, eccentrically mounted in a revoluble member 16, also carried by the sleeve, engages a longitudinal slot 19 in the shaft 11. When the nut on the shaft 11 is unscrewed and the set-screw 14 slackened, the shaft 11 may be partially rotated relatively to the shaft 10 by rotating the plug 16. A scale on the periphery of the plug 16 co-operates with a zero-mark on the sleeve. Projections 17 may be formed on the plug to facilitate operation.