baber/WOPTO huggingface dataset:
Patent GB-1319062-A (GB)
IPC: H04B17/40
Filed: 1970-07-17
Abstract: 1319062 Testing unattended repeaters HASLER AG 17 July 1970 [23 July 1969] 34895/70 Heading H4R In a system for the remote testing of a repeater in a pcm transmission line, in which repeater power is supplied over the line, a resistor 6 is connected in series with the power feed to the repeater amplifier with a switching device 7, connected in parallel with the resistor and operated to open circuit the parallel path on reception of a specific pattern of impulses detected. Two different patterns of impulses are transmitted during testing, one of which operates the switching circuit and the other of which does not, but both have the same effect as far as amplifier loading is concerned, making resistance measurement of the D.C. feed path, to determine the location of a fault, more accurate. As described a test transmitter produces two sequences of impulses, e.g. 010101 ... or 0000111100001111 ... and the transmitter switches between these impulse sequences at either a 1 KHz or 2 KHz. The repeater ineludes a resonant circuit 8 tuned to 320 KHz which is the resulting frequency of the second impulse sequence 0000111100001111 .... The signal developed across the resonant circuit, which will be 320 KHz modulated by either 1 KHz or 2 KHz is fed, via amplifier 9, to rectifier 10 and band-pass filter 11 which passes 1 KHz. The output from the filter is arranged to operate a Schmitt trigger 13 to make transistor 7 non-conductive only if there is a 1 KHz signal present at the output of filter 11. The system maybe adapted to operate with separate repeaters for each direction of transmission, which are fed in parallel, by making the 1 KHz detector circuit responsive to 320 KHz signals in either the forward or return signal channel, Fig. 2 (not shown), or by having respective detectors and switching devices operating on a common feed resistor.
Patent GB-1014292-A (GB)
Title: Filling hopper with automatic discharge for a baling press for scrap metal or other materials
Inventor: SCHAIK JOHAN VAN
IPC: B30B9/30
Filed: 1961-09-28
Abstract: 1,014,292. Hopper feeds. FAWCETT PRESTON & CO. Ltd. Sept. 25, 1962 [Sept. 28, 1961], No. 34936/61. Heading B8S. [Also in Division B5] In a baling press the cover door 1 has secured thereto a filling hopper gate 7 so that the hopper gate is shut when the cover door is closed and is open when the cover door is open. The hopper may therefore be filled while the pressing operation is in progress.
Patent GB-367051-A (GB)
Title: Improvements in and relating to the manufacture of articles of concrete and the like
IPC: B28B13/02
Filed: 1930-11-20
Abstract: 367,051. Moulding pipes, hollowware, &c. by fluid pressure. RUML, B., 32, Pstrossova, Prague, and RUML, F., Platenice, both in Czeoho-Slovakia. Nov. 20, 1930, No. 34945. Addition to 352,968. [Class 87 (ii).] The apparatus described in the parent Specification is modified by the use of a hand regulatable valve between the compressed-air chamber and the balancing valves. In the illustrated form the compressed-air container 4 communicates with the concrete container 5 through a system of valved pipes as shown in Figs. 2 or 3. The container communicates with the multi-part mould 1 provided with a core 3. In the arrangement shown in Fig. 2, a series of hand-controlled throttle valves 15 and 22 .. 25 are arranged in advance of the pressure-equalizing or balancing valves 16 .. 21, which are set to predetermined pressures. By opening any selected throttle valve, the air can be passed through any desired number of the equalizing valves, while by regulating the throttle, the pressure in the container 5 can be varied even when the air is passing along any particular circuit. On opening valve 27 the whole of the equalizing valves are cut out. Fig. 3 shows a modified arrangement in which each branch pipe has its own throttle and equalizing valve each of the latter being set to different pressures. By manipulating the throttle valves, the working pressure can be varied to suit different materials and operations at will, but as a rule a large initial pressure will be required to set the concrete in motion, a smaller, but increasing pressure to fill the mould, and a much higher final pressure to consolidate the article and drive out moisture. Rapid setting of the outer layers of the moulded body is promoted by passing steam or hot air through channels 28 in the mould. The core may be withdrawn while the inner layer is still plastic or when it has just set and may be rotated continuously or at intervals, so that the measured resistance offered to rotation determines the time for withdrawal. If the core has been heated it may be suddenly cooled before withdrawal.
Patent GB-1374960-A (GB)
Title: Semiconductor rectifier apparatus
IPC: H01L25/07
Filed: 1973-07-23
Abstract: 1374960 Semi-conductor rectifier assemblies TOKYO SHIBAURA ELECTRIC CO Ltd 23 July 1973 [21 July 1972] 35032/73 Heading H1K Two 3-phase full-wave rectifiers of respectively large and small current capacity, e.g. for use in a motor vehicle for recharging the battery and supplying the field winding to the alternator, are arranged in a common assembly located on an insulator plate 1, e.g. laminated and of horse-shoe shape. On one surface of the plate 1 there are four conductive films 2-5 (Fig. 1), e.g. of Cu or Al, while the other surface of the plate carries two conductive plates 9, 10 (Fig. 2), e.g. of Fe or Al, preferably thick enough to provide strength and dissipate heat. The semiconductor rectifier elements 11, 21, 22, 30-32 constituting the three pairs of the large-current rectifier are mounted in recesses on the conductive plates 9, 10 and extend through the insulating plate 1 to connect to the films 2-4, which are shaped so as to make this possible. Fig. 3 (not shown) illustrates the preferred form of mounting for these elements. Three auxiliary semi-conductor rectifier elements 42-44 which form the low-current rectifier are connected between the fourth conductive film 5 and respective ones of the films 2-4. Preferably slots 39-41 in the plates 9, 10 accommodate the elements 42-44, and Fig. 4 (not shown), illustrates a suitable mounting arrangement for the elements 42-44. A.C. input terminals 6-8 are located on the films 2-4, main D.C. output terminals 51, 52 are provided on the plates 10 and 9 respectively and an auxiliary D.C. output terminal 53 is situated on the film 5. Figs. 6-8 (not shown) illustrate an alternative configuration of conductive films and plates, rectifier elements and terminals resulting in the same circuit arrangement on another horse-shoe shaped insulating plate.
Patent GB-402598-A (GB)
Title: Improvements in razors and sharpening devices therefor
IPC: B24D15/08
Filed: 1932-12-10
Abstract: 402,598. Razorand stropping-apparatus. CHAPMAN, M. W., West Lodge, The Green, Ealing, London. Dec. 10, 1932, Nos. 35056/32 and 12065/33. [Class 60.] A razor support and sharpening device comprises discs 2, 3, Fig. 2, mounted in a casing 1 and rotatable by a knob 7, a free wheel device 8, Fig. 1, and toothed gearing 5, and a blade holder mounted between or beside the discs or both. The discs may be faced inside with leather 9 and outside with steel, oil-stone or the like 10, for honing. The blade 12 has a perforated lug 13 and may be pivoted on its handle so that it can be turned from shaving position, Fig. 4, into alignment with the handle, or be unscrewed and reattached, by a screwed hole 12a and is then inserted between the discs and placed on a rod 11, Fig. 2, having a handle 15, Fig. 1, so that it can be turned to engage either disc with its edge and back. For honing the blade is inserted between the outer face of a disc and a rigid arm 16, being pressed into position by a spring 17. The handle H and guard G are housed by means of knobs 1a on the casing 1. One of the two Provisional Specifications describes an arrangement having three discs 2 with two blade-holders, one in each of the spaces between the central disc and an outer disc, the faces of the discs being so prepared that in one space the blade is honed and in the other stropped.
Patent GB-1373987-A (GB)
Title: Method of manufacturing pistons
IPC: F02B23/06
Filed: 1972-07-27
Abstract: 1373987 Making pistons MAHLE GmbH 27 July 1972 35280/72 Heading B3A To form a light metal piston with a dished combustion chamber in the piston head 1, a blank, Fig. 1, formed with a recess 2, to be enlarged to form the combustion chamber, has a charge carrier beam applied to the surface in which the recess is provided to produce two or three parallel remelting seams 6, Fig. 4, the beam being oscillated transversely to the general direction of the seams to cause overlapping of the seams. The recess is then machined to run over the area 5 comprising partly piston material and partly remelted material so that the rim 3 of the final piston chamber is defined by remelted material. Suggested apparatus for producing the charge carrier beam is an electron beam welding machine.
Patent GB-856849-A (GB)
Title: Improvements in and relating to operating fluids for use in vacuum pumps
IPC: F04F9/00
Filed: 1958-11-03
Abstract: 856,849. Diffusion pumps. FARBWERKE HOECHST AKTIENGESELLSCHAFT VORM. MEISTER, LUCIUS & BRUNING. Nov. 3, 1958 [Nov. 2, 1957], No. 35284/58. Class 71. A vacuum diffusion pump contains as activating fluid a compound of the general formula : X-(CF 2 -CFCl)n-Y where X and Y are halogen atoms, preferably chlorine or fluorine, or a trihalogen methyl group, preferably -CF 3 , -CF 2 Cl or -CCl 2  F, and n is an integer from 3 to 15, preferably 5 to 10. An example describes treating a fluorochlorocarbon oil with ozone and chlorine at elevated temperature and its subsequent utility as a pump oil. Specification 744,256 is referred to.
Patent GB-1019136-A (GB)
Title: Improvements in and relating to field-emission electron-discharge tubes
IPC: H01J17/20
Filed: 1963-09-06
Abstract: 1,019,136. Cold-cathode tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Sept. 6, 1963 [Sept. 11, 1962], No. 35287/63. Heading H1D. A field-emissive election discharge tube comprises metal and ceramic, e.g. Al 2 O 3 , parts soldered together, the cathode having a fine tip of radius #10<SP>-5</SP> mm., and the tube being filled with argon at a pressure of a few tens of Torr at room temperature. For use, the tube is cooled in liquid helium, the argon serving to blanket the tube while it is being soldered during assembly. The cathode may be a 0À1 mm. tungsten wire welded to a molybdenum cathode plate, the other electrodes being molybdenum plates or annular, spaced apart by, and silver-soldered to, aluminium oxide cylinders.
Patent GB-854120-A (GB)
Title: Improvements in or relating to support members for trackway for toy vehicles
IPC: A63H18/02
Filed: 1958-11-04
Abstract: 854,120. Tracks for toy vehicles. VOLLMER, W. Nov. 4, 1958 [March 6, 1958], No. 35313/58. Class 132(3). Track sections for toy vehicles are carried on one-piece support posts having pins projecting outwardly from two opposite side faces thereof, the pins being received in recesses or bores provided in resilient flaps which project from one face of a support plate and clamp between them the opposite faces of the support post. Track sections 12 rest on support plates 6 which have flaps 7 provided with apertures for engaging over the topmost pair of a series of pins 5 formed on I-section posts 1. The plates have holes 11 for receiving a screw or pin which also passes through a hole 13 formed at each end of the track sections. The posts 1 may be cut to the required length between two adjacent pins 5 so as to permit the plates 6 to be adjusted to the required inclination. The pins at the lower ends of the posts are removed and the posts are secured between guide shoulders 3, 4 provided on bases 2. The track sections have edge portions 16 representing grass, plasterwork or gravel, and holes 14 enable rails to be fitted.
Patent GB-1416152-A (GB)
Title: Electroplating of gold
IPC: C25D3/48
Filed: 1972-07-28
Abstract: 1416152 Electroplating of gold JOHNSON MATTHEY & CO Ltd 26 July 1973 [28 July 1972] 35344/72 Heading C1A [Also in Division C7] A gold complex is prepared by reaction between an alkali metal gold sulphite and a complexing salt which is an alkali metal nitrite, carbonate, cyanate, citrate, oxalate, tartrate, acetate, formate, phosphite or arsenite by heating an aqueous solution of an alkali metal gold sulphite and one of the above complexing salts, at, for example, 50‹ C. for 15 mins. Aqueous solutions of the gold complex in concentrations of 2-30 g./l. of Au can be used for electroplating, preferably with an added quantity of the complexing salt, a brightener (e.g. a composition of EDTA and Ag 2 O 3 ) and a buffer to hold the pH at 9-12 (e.g. borax) after initial adjustment with, e.g. NaOH.
Patent GB-1427597-A (GB)
Title: Process for the dyeing of synthetic fibre material and of  mixtures thereof with natural fibre material
IPC: D06P3/54
Filed: 1973-07-25
Abstract: 1427597 Dyeing and optically brightening synthetic materials CIBA-GEIGY AG 25 July 1973 [26 July 1972 1 Sept 1972] 35383/73 Headings D1B and D1P Synthetic fibre materials and mixtures thereof with natural fibre material are dyed by introducing a solution of a disperse dye in an organic solvent at the dyeing temperature into a dyeing apparatus containing the fibre material and water at 50 to 150‹C, the dyeing then being finished at 50 to 150‹C with at least partial removal by distillation of the organic solvent. Preferably the pH of the water is adjusted to 4 to 7 with C 1 -C 5  organic monocarboxylic acid closed pressure-tight circulation apparatus being employed. Synthetic materials dyed are synthetic polyamides, polyethylene glycol terephthalate, cellulose 2.5- and tri-acetate. Optical brighteners may be used. Blends of synthetic fibres with cotton and wool are specified, anionic dyes e.g. wool dyestuff, reactive and substantive cotton dyes being employed for these substrates. Organic solvents employed include n-butanol, dimethyl-formamide, benzyl alcohol, chlorobenzene, glacial acetic acid, ethanol, acetone, amyl acetate, ethylene glycol, nitromethane, acetophenone, trichloroethylene, dimethylsulphonide.
Patent GB-422149-A (GB)
Title: Improvements in hydraulic valves of the delay-action self-closing type for the automatic closing of gas conduits
IPC: F23Q9/02
Filed: 1933-12-15
Abstract: 422,149. Fluid - actuated valves. JEFFERY, E., 5, Rue de Forbin, Marseilles, France. Dec. 15, 1933, No. 35390. [Class 135] Relates of delay-action selfclosing valves. Liquid in a lower chamber 3 normally seals the ends of gas inlet and outlet supply pipes 9, 10. When a supply of gas is required, a suction pump 12 is manually operated to raise the liquid through a conduit 6 to an upper chamber 4, whence, upon stoppage of the pump, it escapes through an aperture 5, until, after a time predetermined by the quantity of liquid raised, the pipe ends are sealed. An overflow device may be provided in case condensation on the interior of the casing increases the volume of the liquid.
Patent GB-1207033-A (GB)
Title: Improvements in or relating to a material handling machine
IPC: E02F3/352
Filed: 1968-07-25
Abstract: 1,207,033. Shovelling machines. ENVIROTECH CORP. 25 July, 1968 [1 Sept., 1967], No. 35532/68. Heading E1F. In a shovelling machine in which a shovel 36 is moved from a gathering position to a discharge position on the rocker arms 32 by which it is supported being caused to roll along trackways 50 on a support frame, the rocker arms are arranged to be supported for pivotal movement about a fixed centre of curvature located at the outer end portion of each rail member during initial upward movement of the bucket from the gathering position. Each fixed centre of curvature is created by forming the outer end portion 64 of each rail so as to have a configuration 84 of a circular arc preferably extending over substantially 180. When such end portions of the rails engage in complementary recesses in the rocker arms when the scoop is in a gathering position and when initially moving upwards then the rocker arms are spaced from the upper surfaces 54 of the trackways.
Patent GB-778865-A (GB)
Title: Improvements in or relating to clamps
Inventor: SLADE KENNETH
IPC: B25B5/12
Filed: 1954-12-08
Abstract: 778,865. Clamps. SPEED TOOLS, Ltd. Oct. 28, 1955 [Dec. 8, 1954], No. 35571/54. Class 61 In a clamp of the kind operated by a toggle mechanism and comprising a movable jaw 21 pivotally mounted on a support member 11 and movable to its operative position by an operating lever 15 pivotally mounted at 17 on the support member 11 and connected to the jaw member by links 24, 25 which together with the lever 15 and jaw 21 form the toggle mechanism the initial movement of the clamping spindle 22 of the member 21 from its clamping position is substantially along its own axis at right angles to the work piece being clamped. The links 24, 25 are mounted one above the other and parallel to each other. A further pair of links 24a, 25a are provided on the other side of the block 21 (Fig. 4). The upper arms 24, 24a carry a pivot pin 28 for the pivotal connection of a link 29. The other end of the 'link is connected to a bifurcated handle 16 of the operating lever 15 by a pivot pin 30. The lower arms 25, 25a carry a stop member 27 for engaging the operating lever 15 in the operative position of the clamp. When the clamp is in its operative position the handle 16 is vertical, the pivot points 17, 28 and 30 are in line and the arms 24, 25 are arranged so that their outer ends connected to the block 21 just pass the horizontal. This provides for the initial movement of the spindle 22 being substantially vertical along its axis. The pantograph arrangement of the arms 24, 25 ensures that the movement of these arms by the operating lever 15 will provide a movement of the block 21 in which the clamping spindle 22 is always held in the vertical position.
Patent GB-902767-A (GB)
Title: An improved means of camouflaging primarily for military use
IPC: F41H3/02
Filed: 1958-11-05
Abstract: 902,767. Camouflage nets. RUTER, R. G. Nov. 5, 1958 [Nov. 18, 1957], No. 35578/58. Class 20 (1). A camouflage net of a textile or plastics material has a number of arcuate incisions b therein so that parts of the material stand proud of the plane of the net when it is pulled taut. The net may be multi-coloured and may be supported on flexible steel wires.
Patent GB-823993-A (GB)
Title: Preparation and process for the permanent waving of hair
Filed: 1956-11-21
Abstract: A composition for use in a "cold" or "tepid" hair-waving process which avoids the use of a neutralizer comprises a mercaptan and a terpene.  The mercaptan may be thioglycollic acid and the terpene may be an essential oil, of which several are specified, or keto-, aldehydic or hydroxylic derivatives thereof, e.g. menthanol, menthol, borneol or camphor.
Patent GB-1307961-A (GB)
Title: Method and apparatus for stacking and handling articles in sheet  form
IPC: H02K15/02
Filed: 1971-07-29
Abstract: 1307961 Delivering sheets L SCHULER GmbH 29 July 1971 [30 July 1970 2 Nov 1970 14 Jan 1971 13 May 1971] 35677/71 Heading B8R A stamped-out metal web 6, Fig. 1, is cut into perforated sheets 8 by cutters 43, 45, the sheets being delivered in overlapping relationship by belts 15. In operation, a tray 52 is advanced to the full line receiving position and the sheets drop into it to form a small stack 26. One of a plurality of mandrels 20 on a turntable 21 is then brought into position below the stack 26, a preceding mandrel at the same time removing a complete stack. The mandrel is then raised and passes through a slot in the tray 52 and through the perforations in the sheets, the tray is withdrawn and the stack 26 and subsequent sheets fall down the mandrel. When a predetermined number of sheets is on the mandrel, or when the stack attains a required height, the tray is again advanced under the control of a detector, the mandrel is lowered and the turntable is again indexed. Two sheets may be delivered side by side to two sets of mandrels carried on conveyer belts, or two conveyers 15 may deliver sheets at right-angles to two turntables. In another form, Fig. 7, the mandrels 76 rotate about a horizontal axis which can be raised bodily, and the stacks are transferred to a removal station 79. A plurality of such sets of mandrels may be axially adjustably mounted on the axis to co-operate with a plurality of conveyers each feeding one or more sheets. A plurality of sheets may be fed in different horizontal planes, each to a set of mandrels on a common horizontal axis, but each set having a different radius and the axis extending in feed direction. Locking pawls may be provided to retain a stack on a mandrel while the latter is moving. A mandrel may be removed at the stack removal station and replaced by another.
Patent GB-771257-A (GB)
Title: Hydraulic forming attachment for presses
IPC: B21D22/12
Filed: 1955-12-09
Abstract: 771,257. Stamping. SVENSKA AEROPLAN AKTIEBOLAGET. Dec. 9, 1954 [Dec. 14 1953], No. 35695/54. Class 83 (4). An attachment for fitting to a single- or double-acting press to enable dished articles to be formed by hydraulic pressure applied to the blank through an elastic wall 23 of rubber or similar material comprises a die 14 either attached directly or through a holder 8 to the press table 5, a body member 9 having a liquid chamber 21 closed at the bottom by the elastic wall and a bore 20 above the liquid chamber for a plunger 10 which is acted on by the press head 7 and exerts pressure on liquid 26 to cause the elastic wall to deform the blank B into the die. The elastic wall is formed on a cup-shaped member 24 having a flange 25 snapped into a groove 70 and the wall acts on the blank through a rubber wear disc 32 snapped into a groove 33. As applied to a double-acting press, the inner press head 7, Fig. 2, acts on the plunger 10 against the force of a spring 30 and the body member 9 is attached to the outer press head 6. The outer press head is lowered first so that the body member, through an annular plate 34 of hardwood or other material, clamps the edges of the blank against the die; however, if the blank has a diameter smaller than that of the elastic wall, the clamping pressure is applied solely through the bottom of the wall. For forming a deeply-dished article, a second operation may be performed on it with the interposition of a rubber insert 36. As applied to a single-acting press, the body member 9<SP>1</SP>, Fig. 3, is slidably suspended on the press head 6 by bolts 41 and the pressure for clamping the blank B is applied to it through springs 44. An air pressure duct 35 is provided for ejecting the formed article. For forming corrugations in the sides of a cupshaped article P, Fig. 5, the die is split into two or more sections 50, 51 moved in to engage each other by pneumatic cylinders 54 or like means. The body member has a skirt 58 that holds the die sections against separation during the forming operation and the cup-shaped elastic member 59 has a rim 59<SP>1</SP> by which it is held in the body member by a locking-ring 61.
Patent GB-1322764-A (GB)
Title: Slide closure for a vessel for containing liquid melt
IPC: B22D37/00
Filed: 1970-07-23
Abstract: 1322764 Metallurgical ladles DIDIER WERKE AG 23 July 1970 [25 July 1969] 35731/70 Heading F4B [Also in Division F2] In a metallurgical ladle having a bottom pour opening 5<SP>1</SP> in a backing plate 5 controlled by an apertured slide valve plate 11, the upper sealing surface of the said plate and its discharge aperture 15 are covered with highly refractory corrosion resistant material. The material may be molybdenum disilicide MoSi 2  or a zirconium oxide/molybdenum mixture which may contain 40% metallic chromium. The covering is attached by a refractory cement capable of absorbing the different thermal expansion between the covering and the slide plate. The inlet sleeve 4, backing plate 5, slide plate 11 and discharge sleeve 12 may be made of a mullite/ corundum/clay containing approximately 80% A 2 O 3 .