baber/WOPTO huggingface dataset:
Patent GB-890368-A (GB)
Title: A machine tool index mechanism
IPC: B23Q15/00
Filed: 1959-03-05
Abstract: 890,368. Electric selective signalling systems. KEARNEY & TRECKER CORPORATION. March 5, 1959 [March 10, 1958], No. 7663/59. Class 40 (1). [Also in Group XXII] A machine tool in which a shaft is selectively positioned by means of an electric follow-up system comprises a control switching means for establishing an electric signal representing the desired position of the shaft, means coupled to the shaft for continuously producing an electric signal representing the actual position of the shaft, and means responsive to the difference between the desired position signal and the actual position signal for controlling a motor whereby the shaft is driven to the desired position by the shortest route. As described, a multiple tool holder 38, Fig. 1, only one tool 60 being shown, is positioned in a desired one of twenty possible positions under the control of a manually set switch; Fig. 9, having a code plate, Fig. 10, so arranged in conjunction with five sensing elements to differently mark a group of five lines for each of the switches twenty possible positions (as tabulated in Fig. 12, not shown). Control is effected by a conventional follow-up loop, the desired position, as set on the switch, being represented first as a combination of markings on five leads 346 to 350, Fig. 7, and then via a transformer network and relays 261-263, 246 and 247 as a phase significant A.C. potential on a line 208, by which it is applied to a comparator 210 and the actual position of the multiple tool holder being represented by a continuously variable phase significant A.C. potential derived from a synchro 175 and being applied to the comparator by a line 212. The comparator, Fig. 8, compares the two-phase significant signals and causes a contact 302 to energize either a forwards or a backwards line depending upon whether the actual position phase is less than 180 degrees behind the desired position phase or whether the actual position phase is less than 180 degrees ahead of the desired position phase, and this causes the motor, which is hydraulic, to drive the multiple tool carrier to the desired position by the shortest route. The comparator also includes a voltage-sensitive device 289 which marks a " creep by-pass signal " line except when the two signals are nearly in phase and this signal functions to allow a notched cam to control the fine positioning of the multiple tool holder and after this is effected a final position is achieved by a tapered cylinder which is advanced, hydraulically, into a tapered hole to lock the multiple tool holder. The sequence of operations is controlled by a relay sequencing unit (lower half, Fig. 7, not shown) and includes various safety interlocks to ensure, for example, that the multiple tool holder is unlocked before being driven. Once the multiple tool holder has been positioned gears can be engaged, under control of the sequencing unit, to drive the tool. Specification 866,627 is referred to.
Patent GB-195372-A (GB)
IPC: A24F9/02
Filed: 1923-03-16
Abstract: 195,372. Engel, A. March 21, 1922, [Convention date]. Tobacco-pipe stoppers.- A rammer comprises semicircular parts t, Fig. 1, attached to a spring hoop a and provided with tongues k engaging the bowl of the pipe to retain the rammer in position. In a modification, the spring hoop is attached to the parts t at the periphery. In another form, the ramming surface t, Fig., 3, is in one piece and a tongue ka is provided on a spring hoop a. In another form, the hoop a, Fig. 4, has tongues k at the end of horizontal arms, and the surface t is detachable and may be perforated. The handle may be heat-insulated. The flange of the rammer may act as a scraper.
Patent GB-1020668-A (GB)
Title: Flow restrictor
Inventor: PENDLETON JOSEPH RAYMOND
IPC: G21C15/02
Filed: 1964-02-24
Abstract: 1,020,668. Cooling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 15, 1965 [Feb. 24, 1964], No. 7685/64. Addition to 880,489. Heading G6C. In nuclear reactor coolant flow restrictor of the type described in the parent Specification a bellows filled with an expansible fluid is inserted in a coolant channel and adjusts a throttle in correspondence with the coolant temperature. The bellows is of annular form to permit free flow of coolant through the centre. The restrictor may be used in a sodium cooled fast reactor.
Patent GB-143679-A (GB)
Title: Improvements in prepayment meters
IPC: G07F15/08
Filed: 1919-03-29
Abstract: 143,679. Staples, C. W., Cox, W., and Glover & Co., G. March 29, 1919. Gas &c., supplying by meter. - A coin-freed meter is provided with means for closing the coin slot, before actuation of the quantity wheel can be effected, comprising a plate F pivoted eccentrically at G to the slot plate E and carrying the handle H. The plate E is mounted in a ring D on the back of the price-change plate C, this ring having a gap H<1> which is engaged by a projection f on the plate F, when the latter is in the position in which the coin-slots f<1>, c coincide with the slot in the plate C, and prevents rotation in one direction. When the handle is turned to produce rotation in the other direction, a coin having been inserted, the projection f is moved out of the gap h<1>, and the alinement of the slats is destroyed, so that access to the interior mechanism is prevented. The front of the coin-mechanism box faces the same way as the front of the meter, and, to facilitate this arrangement, the drive from the quantity-wheel to the meter mechanism is in the form of a seroll K engaging a worm L on the spindle M of the meter mechanism. In some cases, a screw and sleeve or other mechanism may be employed instead of that described. According to the Provisional Specification, the coin slot may be closed immediately after the commencement of the rotation of the coin pocket, by a pair of pins engaging the edges of a plate slidably carried on the price-changing plate.
Patent GB-1383323-A (GB)
Title: Recording of digital television signals
IPC: H04N5/84
Filed: 1971-03-26
Abstract: 1383323 Holographic digital data stores BRITISH BROADCASTING CORP 25 Feb 1972 [26 March 1971] 7954/71 Heading G2J Digital data, in the form of trains of digital words representing successive points of a television picture, are recorded as successive illumination patterns in the form of diffraction patterns upon a photo-sensitive medium. A lasar beam modulated at 12 is passed to a mirror 18 of a circularly scanning system which focuses the scanned beam on to a circular fibre array 20. The output end of the array is arranged as a straight line and emits beams which pass a polarizer 21. The polarized light passes to a mask 22 having ten apertures, nine of which transmit digital data the tenth being central of the mask and acting as a reference beam. In front of each aperture is an electro-optic crystal 24 to which the digital information of the picture is fed, which rotates the plane of polarization of each beam whereby for a binary "O" the light is polarized at right angles to that passing the central aperture, and for a binary "1" is parallel thereto. Interference takes place only in the latter case and is recorded as a hologram on film 28. Modulator 12 can be used to superpose on each digital word an analogue picture, viz intensity variation of the respective picture point. Reconstruction is conventional, using a scanning reconstruction beam passing through a fibre array equivalent to 20, with the reconstructed image falling on an equivalent mask to 22 behind which are appropriate photodetectors.
Patent GB-735594-A (GB)
Title: Grinding machine for dressing gear teeth by a helically ribbed wheel
IPC: B23F23/12
Filed: 1953-03-24
Abstract: 735,594. Gear-grinding. DAVIS, Ltd., S., and DARBY, W. Jan. 28, 1954 [March 24, 1953], No. 8022/53. Class 83 (3). [Also in Group XXIII] A gear-grinding machine comprises, in the drive to a hob 10 and the work 11, a pair of gear-wheels 31, 35 which have non-axial teeth and which can be adjusted relatively to adjust the relative positions of the teeth of the hob and work. The wheels 31, 35 are helicallytoothed and the wheel 31 can be adjusted axially by a nut 36 screwing into the machine frame 37. The nut 36 is turned by hand or by a remotely-controlled worm-and-wormwheel cooperating with a gauge to determine the amount of adjustment. In a modification, the adjustable gear-wheels consist of a wormwheel 12, Fig. 4, and an axially-adjustable worm 13a.
Patent GB-526332-A (GB)
Title: Improved apparatus for measuring the quantity of material which is conveyed by a feeding device through an aperture
IPC: G01F13/00
Filed: 1939-03-13
Abstract: 526,332. Measuring feed of granular material. GOUDSMIT, J. L. March 13, 1939, No. 8075. Convention date, March 12, 1938. [Class 106 (iv)] An apparatus for measuring the quantity of material conveyed by a feeding device through an aperture such as fuel on a chain grate comprises a crank arm 16, Figs. 2 and 3, driven by a sprocket wheel 6 from the chain grate, the arm being provided with a guiding block 14 to impart an oscillating movement to a slotted lever 12 freely mounted on a hollow shaft 10. The lever 12 is formed with a stop 17 against which bears a projection 18 on a driving arm 19 under the control of a torsion spring 20. The arm 19 is provided with a block 21 carrying a stop 23 and a pair of spaced pawls 22 engaging a ratchet wheel 24 operatively connected through bevel gearing 25, 26 to the actuating shaft of a counting mechanism (not shown). The effective length of the stroke of the pawls is controlled by a stop arm 27 that co-operates with the stop 23. The arm 27 is secured to a shaft 7 to which is attached a torsion spring 9 and a rope pulley 8. The height of the aperture is regulated by the rope, and the position of the arm 27 is adjusted. accordingly.
Patent GB-983864-A (GB)
IPC: C21C5/32
Filed: 1961-03-06
Abstract: <PICT:0983864/C6-C7/1> High phosphorus, particularly basic Bessemer pig iron is refined into steel by blowing oxygen on to the surface of the molten bath, e.g. in a converter, through a blowing nozzle (see Division F4) having an axially disposed duct having an outlet and a concentrically disposed ring of helical ducts each having obliquely directed outlets of smaller dameter than that of the axial duct to provide the issuing oxygen jets with a tangential component of velocity, all the outlet orifices lying in the same plane. Preferably the cross-section dimensions of the orifices are such that one-third to one-half of the total oxygen is supplied through the peripheral orifices.  Initially, the nozzle is near the bath surface, then raised, and thereafter raised or lowered to ensure the desired reaction having regard to additions of coolant, e.g. scrap and ore, foaming and the iron content of the slag. For the production of more than two reaction zones on the bath surface, two or more concentric rings of helical ducts may be provided.
Patent GB-1426684-A (GB)
Title: Ring opening thiazole or selenazole compounds
IPC: C07C391/00
Filed: 1974-02-22
Abstract: 1426684 Aromatic thiols and selenols CIBAGEIGY AG 10 Jan 1975 [22 Feb 1974] 8132/74 Heading C2C Compounds of the formula where X is S or Se and D represents the atoms necessary to complete an optionally substituted benzene or naphthalene ring are prepared from a compound of the formula where Y is a substituent other than hydrogen, by dissolving the compound in an aqueous diol or an alkyl substituted aqueous diol containing a strong alkali to raise the pH of the medium to greater than 12 in the presence of an alkali metal or ammonium borohydride under reflux conditions. The product may be acylated and the acylated product ring closed to give a benzthiazole or benzselenazole product.
Patent GB-1595823-A (GB)
Title: Method of knitting knitted goods of fully fashioned type a carrying the method into effect nd/or having an intarsia-type pattern and arrangement for
IPC: D04B7/26
Filed: 1978-03-01
Abstract: A method and apparatus are disclosed for knitting sections of predetermined contour and/or of a design of the Intarsia type of predetermined shape in which a yarn guide member is moved along a bank of needles in a knitting machine between a pair of carrier splicing blocks which are movably mounted in the machine. The positions of these blocks are selectively variable, and a releasable latch arrangement connects the yarn guide to a splicing block during movement thereof in order to automatically vary the starting position of the next stitched row.
Patent GB-1145580-A (GB)
Title: Chewy confectionery food products and method of making
IPC: A23L27/00
Filed: 1968-02-20
Abstract: 1,145,580. Partially rehydrating freezedried food; ice cream; confectionery. W. R. GRACE & CO. 20 Feb., 1968 [3 March, 1967], No. 8231/68. Headings A2B and A2D. A method of producing a chewy confectionery food product from a substantially dry, cellular, freeze-dried piece of said food product having a moisture content of 1¢% by weight or less, comprising partially rehydrating the piece to a moisture content of 2 to 10% by weight. The product may be rehydrated by contacting it with a moisture-containing gas (e.g. air or nitrogen) stream. The stream may contain volatile aromas, flavours and colourants. The partially rehydrated product may be coated with chocolate and/or caramel or may be stored in sealed containers. The product may be selected from frozen ice milk confections (e.g. ice cream, pineapple sherbert, frozen custards), gelatin, gelatinbased desserts, fruits, fruit purees, berries, berry purees, fresh coconut, cake pie, starch-containing pudding and pie fillings, peanut butter, toffee, honey, candy jelly, jam, marmalade, fruit jelly and sour-creamfruit and berry mixtures.
Patent GB-1453230-A (GB)
Title: Power tools
IPC: B25F5/00
Filed: 1974-02-22
Abstract: 1453230 Percussive tools SKIL (NEDERLAND) NV 22 Feb 1974 [23 Feb 1973] 8233/74 Heading B4C [Also in Division B3] A rotary hammer power tool in which axial and/or rotational motion can take place comprises a tappet 32 with clutch teeth 47 and first and second hammering portions 49, 26, a rotary bit tool driver 52 having teeth 58 which can engage the teeth 47, a tool element 78 with a shank 79 which is rotatable with the driver 52 and axially slidable relative thereto and selection means 62 comprising an eccentric and engageable with the driver 52 to reciprocate it axially and engage and disengage the clutch teeth 47, 58 to selectively impart rotation to the tool bit. The tappet 32 receives hammering blows on its second hammering surface 26 from a hammering bit 30 which can be disengaged by retracting the tool from the work and allowing surface 26 to move out of range of hammering bit 30. Hammering action is transmitted to shank 79 by means of first hammering surface 49 in the tappet. Rotation is passed to shank 44 of the tappet from a drive motor 16. Handles 13, 14 are provided.
Patent GB-127872-A (GB)
Title: Process of Producing Propellant Powder.
IPC: C06B25/22
Filed: 1917-06-09
Abstract: 127,872. Du Pont de Nemours & Co., E. I., (Assignees of Teeple, O. J.). July 29, 1916, [Convention date]. Explosives.-Relates to explosive grains coated with a deterrent solvent material such as dinitrotoluene, and consists in first applying the coating, for example by rumbling the grains with the powdered deterrent material in a drum, and then admitting a heated vapour such as steam to the drum while it is still revolved.
Patent GB-985084-A (GB)
Title: Moulding apparatus and process for making the same
IPC: B29C51/36
Filed: 1964-02-28
Abstract: 985,084. Rollers. UNITED STATES RUBBER CO. Feb. 28, 1964 [May 22, 1963], No. 8331/64. Heading F2U. [Also in Division B5] An embossing roller comprises an outer sheath 15 of porous metal and an inner sheath 25 of porous or non-porous metal or a resin of high distortion temperature heat shrunk or formed in situ upon a rotatable core 100. Longitudinal vacuum channels 45 located at the interface of the two layers are connected, via axially aligned bores 131 in plate 130, sealingly attached to said layers, with openings 122, 123 in a fixed commutator ring 120. The openings 122 and 123 are connected to a source of vacuum and pressure respectively so that as the roll rotates a channel first communicates with opening 122 and then with opening 123 thus first sucking the sheet to the roll to emboss it, then blowing it away from said roll to remove it. The porous metal layers are applied to the inside of a tubular former, the former removed and the layers heat shrunk on to the core, or are sprayed directly on to the core. Metals suitable for use are aluminium, low melting steels, bronze, copper, nickel and various suitable alloys.
Patent GB-1030292-A (GB)
Title: Method for preserving or disinfecting
IPC: A23L2/44
Filed: 1964-02-28
Abstract: 3,7 - Dimethyl - nonadien - (2,6) - oic - (1) acid and 3,6,7 - trimethyl - octadien - (2,6) - oic - (1) acid are prepared by oxidation of the corresponding aldehydes, suitably with silver nitrate.ALSO:A method of disinfecting goods against attack by micro-organisms comprises heating said goods with or incorporating therein 3, 7-dimethyl-nonadien-(2, 6)-oic-(1) acid or 3, 6, 7-trimethyl-octadien-(2, 6)-oic-(1) acid or 3, 7-dimethyl-octadien-(2, 6)-oic-(1) acid or a salt or ester thereof, or a mixture of any of these compounds or a composition containing any of said compounds or mixtures thereof and a compatible carrier.
Patent GB-145175-A (GB)
Title: Improvements in demountable rims
IPC: B60B23/04
Filed: 1919-04-03
Abstract: 145,175. Rubsam, C. F. April 3, 1919. Addition to 125,078. Detachable-rim attachments to wheels.-In detachable-rim attachments of the kind described in the parent Specification, the bearing - means 25 occupying parts of the arc which includes the pivotal axis 29, extend less than 90‹ on either side of the pivotal axis, and the bearing-means 26 of the other arc extend less than 90‹ on either side of the point diametrically opposite to the pivotal axis. The bearing means 26 extend from the side 28 to slightly beyond the vertical plane lying parallel to the wheel and passing through the pivotal axis. The bearing means 25 are spaced symmetrically, as shown in Fig. 3. Means 30, 31 are used to force and hold the detachable rim in position.
Patent GB-1483858-A (GB)
Title: Photographic camera exposure control circuit
IPC: G03B7/08
Filed: 1975-02-28
Abstract: 1483858 Exposure control circuit PENTACON DRESDEN KAMERA-UND KINOWERKE VEB 28 Feb 1975 [5 March 1974 10 May 1974] 8456/75 Heading G2A An exposure control circuit for a camera comprises diaphragm aperture and film speed setting resistors 3, 4 coupled to one input of a differential amplifier 7, 8, and photo-sensitive elements 5, 6 connected between resistors 3, 4 and the other input, one output of the amplifier 7, 8 being connected via a transistor 11 to a lamp or diode 12 which illuminates element 6 and the other output being connected via a circuit 14, 13, 15 to a stabilizing transistor 17 connected to the coupled emitters of the amplifier 7, 8. In operation element 5 is illuminated by subject light and the amplifier 7, 8 controls the intensity of lamp 12 to produce a balance by illuminating element 6, lamp 12 also illuminating a photo-sensitive element 18 in an exposure time control circuit 19. If the battery voltage falls, the collector current of transistors 7, 8, 11, 14 drops, conduction through a transistor 15 falls, the base potential of transistor 17 rises and the collector current of transistors 7, 8 rises again.
Patent GB-1459858-A (GB)
Title: Nitration of halobenzenes
IPC: C07C205/12
Filed: 1974-02-25
Abstract: 1459858 Nitration of halobenzenes TEIJIN Ltd 25 Feb 1974 [26 Feb 1973] 8457/74 Heading C2C A process for nitrating halogenated benzene derivatives comprises reacting a halogenated benzene derivative with nitric acid in the liquid phase in the presence of a catalyst composed of an oxyacid of sulphur or phosphorus supported on silica-alumina and/or alumina. Preferably the catalyst is one prepared by impregnating the carrier with sulphuric acid or phosphoric acid, and then calcining it at a temperature of at least 100 C. The reaction is preferably carried out at room temperature to about 100 C., and the nitric acid is preferably used in an amount of 5 to 50 mol. per cent based on the halogenated benzene. After the reaction, the catalyst is preferably separated by filtration and the product is preferably separated by distillation.
Patent GB-1435645-A (GB)
Title: Device for metering fine granular material
IPC: G01F11/00
Filed: 1974-02-25
Abstract: 1435645 Discharging hoppers EISENWERKE GES MAXIMILLIANSHUTTE mbH 25 Feb 1974 [2 March 1973] 8465/74 Heading B8S Fine granular material 2 is dispensed in a metered flow from a pressurized storage vessel 1 by a device comprising a discharge opening 4, the cross-sectional area of which is adjustable by a movable closure and metering member 8, and downstream of the member 8 in the direction of flow of material a sealing plate 12 associated with a sealing ring 13 on to which the plate is movable to form a gas-tight seal. The material 2 in the vessel is fluidized by a device 3 adjacent a closure plate 5 having a discharge opening 4 into which the closure and metering member 8 seats, the member 8 and its seat 6 being made from a wear resisting material. The sealing plate 12 is connected to a rod 7 depending from the member 8, and seats on the sealing ring 13 mounted in a seating disc 11 provided with radial ducts from which pressurized gas issues to remove residual material particles from the plate 12 before it closes. Vertical movement of the rod 7 opens and closes the metering member 8 and the sealing ring 13. In the embodiment of Fig. 2 (not shown) the closure and metering member has a cylindrical portion which delays opening of the member until the sealing plate is open to a certain extent. In the embodiment of Fig. 3 (not shown) the closure and metering member is cylindrical with inclined passages therein permitting gradual start of discharge, whereas in the embodiment of Fig. 4 (not shown) a cylindrical closure and metering member moves through a sleeve having discharge apertures therein to achieve the same result. In the embodiment of Fig. 5 (not shown) the closure and metering member comprises two relatively sliding apertured plates and the sealing plate is formed as a butterfly valve. In the embodiment of Fig. 7 (not shown) the sealing plate is formed as a cone mounted on to the bottom of a cylindrical tube movable along the inside of a fixed tube apertured to permit material discharge as the inner tube lowers, the apertures being either triangular or helical.
Patent GB-1385221-A (GB)
Title: Seats
IPC: B65G59/10
Filed: 1972-02-23
Abstract: 1385221 A reclining chair I C DRTEGA 23 Feb 1972 8467/72 Heading A4J A chair which can be reclined by change in disposition of the weight of the body of the user comprises two frames 1, 2 one of which forms the seat and rear ground support and the other of which forms the back 5 and front ground support, 9, the two frames being pivotally inter-connected at their front ends such that pressure on the back causes the other frame 2 to pivot about the junction of the back until the front ground support and the one frame 1 to pivot about its connection with the other frame to maintain the rear support in contact with the ground.