baber/WOPTO huggingface dataset:
Patent GB-1033815-A (GB)
Title: Contour tracing control devices
IPC: G05B19/37
Filed: 1963-07-26
Abstract: 1,033,815. Programmed control of machine tools. SENECA FALLS MACHINE CO. July 26, 1963 [July 26, 1962], No. 29771/63. Heading G3N. By a programmed control system a saddle and work table 10,11 is positioned in quadrature by servomotors 16, 17. The programme on an eightchannel digital tape 2, is read by a tape-reader 1 and the information, representing desired target positions is stored in high-speed relay modules 3, 4 comprising potentiometers supplied from transformers 12,12<SP>1</SP> and compared with feed-back positional signals from potentiometers 8, 9. The error signals, representing co-ordinate movements to the target position, are fed to a resolver R1 through amplifiers 14<SP>1</SP>, 14<SP>11</SP>. The signal generated in a rotor winding 25 controls a zeroing servo 29 through an amplifier 27. The servo-motors 16, 17 are energized from quadrature windings of a resolver R2 resolving a feed rate signal set by a potentiometer 19 in the supply to a rotor winding 20. The tool movement between target positions is linear and curved contour is approximated by a series of secants. A lock-out circuit is responsive to the voltage E N  across a winding 30 of the resolver R1 and the voltage E B  across a winding 20 at the resolver R2 rectifying and smoothing networks for each voltage a series diode and diodes in parallel with a winding of relay 31 so that the relay is energized only when E N  exceeds E B  . When the relay 31 is deenergized the motor 29 is locked through relay contacts 32, 49, so that the tool approaches the target position on the correct heading. The relay groups 3, 4 are then cleared through a relay 53 actuated by relay 48. Subsequently the relay 53 is reenergized and a relay 55 causes the tape reader 1 to commence reading the tape. The control system then operates for a new target position. When the new target position is at right-angles to the tool there is voltage across winding 30 and relay 31 would not be energized; to prevent this a relay 50 is energized from the winding 25 to complete the energizing circuit of the relay 48. Contour offset is provided by a resolver R3 and adjusted by a potentiometer 71.
Patent GB-297813-A (GB)
Abstract: 297,813. Dawans, A. Sept. 30, 1927, [Convention date]. Addition to 294,639. Metallurgical furnaces; heating pulverulent materials, furnaces for.-In the furnace described in the parent Specification for melting blast furnace dust and other pulverulent material, the forward edge of the heap 4<m> of the charge is brought to the edge of the hearth 2<a> and a baffle or screen 5a is provided to shield all but a small portion of the heap from the direct flames from the burner 3<b>. The screen 5<a> may have an horizontal extension 5<f>, over which the heating gases from the burner may pass into the chamber containing the bulk of the charge, and air may be admitted to the relatively cool space 2<m> beneath the extension through a nozzle 5<g>. This space may also accommodate mechanical devices for advancing the charge. The burner is arranged slightly below the edge 28 of the hearth so that the molten materials drop through a zone of intense heat.
Patent GB-727978-A (GB)
Title: Improvements in or relating to cold cathode electric discharge devices
IPC: H01J17/48
Filed: 1951-12-20
Abstract: 727,978. Multi-gap cold-cathode tubes. GENERAL ELECTRIC CO., Ltd., and NEILL, T. R. Dec. 17, 1952 [Dec. 20, 1951], No. 29834/51. Class 39 (1). In a cold-cathode discharge tube of the kind comprising within a gas-filled envelope, a cathode and a plurality of anodes arranged relatively to the cathode so that the striking potential which has to be applied between an anode and the cathode to initiate a first discharge in the device is the same for each anode, and in which the first discharge occurring between any anode and the cathode lowers the striking potential required to initiate another discharge between any one of the other anodes and the cathode, the cathode 1 is a molybdenum wire bent into a circle and welded to one or more nickel supporting wires 3. Six nickel wire anodes 5 surround the cathode and together with the cathode supporting wire 3 are sealed in a circle through a pressed glass disc 4, the external portions of the wires forming terminal pins for the device. The disc 4 is drop sealed into one end of a tubular glass envelope 8 which, after de-gassing and evacuating, is filled with a mixture of neon and argon at a pressure of the order of 40 mm. of mercury. After the tube is sealed, the cathode is subjected to D.C. sputtering for several hours at ten to twenty times the normal current rating to clean the cathode and to remove some of the molybdenum to act as a getter. Alternative cathode materials comprise zirconium, tungsten, iron, nickel and tantalum. The cathode ring may alternatively be formed of or coated with a material of low work function, for example nickel coated with barium or with one or more of the oxides of barium, strontium and calcium, or may consist of a length of cored getter wire, such as a core containing or formed of barium contained within a casing of iron having a longitudinal slit to expose the core on the side of the cathode facing the anodes.
Patent GB-322824-A (GB)
Title: Improvements in dyeing regenerated cellulose rayon
IPC: C09B35/24
Filed: 1928-09-12
Abstract: 322,824. Imperial Chemical Industries, Ltd., and Brightman, R. Sept. 12, 1928. Divided on 322,773. Azo dyes are obtained by tetrazotizing and combining 4: 4<1>-diaminodiphenylamine or a derivative thereof with a 1-amino-8-naphthol sulphonic acid or a derivative thereof (2 mols.) or with a 2-amino-8-naphthol sulphonic acid or a derivative thereof (1 mol.) and another component (1 mol.). Instead of 2-amino-8-naphthol sulphonic acids phenyl J acid may be used. The following components are specified: 4: 4<1>-diaminodiphenylamine and its 2-sulphonic acid : 2 : 8 : 6-acid, salicylic acid, phenyl J acid, N-benzoyl 2: 8: 6- acid and 1-naphthol-4-sulphonic acid. The coupling is made in alkaline solution in all cases. Specifications 280,320 and 281,410 are referred to.
Patent GB-1103100-A (GB)
Title: Improvements in or relating to a dummy for continuous metal casting installations
IPC: B22D11/08
Filed: 1966-07-04
Abstract: 1,103,100. Continuous casting. GOSUDARSTVENY SOJUZNY INSTITUTE PROJEKTIROVANYA METALLOURGITCHESKIKH ZAVODOV. 4 July, 1966 [3 Nov., 1965], No. 29972/66. Heading B3F. A starter bar, for use with continuous castings of different cross-sectional dimensions, has a replaceable head 1 with a cross-section corresponding to that of the casting 2, a dovetail groove (3) by which it interlocks with the casting and a straight- or curve-tapering portion R so that there is a gradual transition from the head to the rectangular-sided bar body 4. The thickness e of the starter bar body 4 is not greater than the minimum thickness of casting and the width (L) is not less than the maximum width of casting. The tapering portion R is bolted or keyed at 5a to the bar body 4. Aprons 10 of guide rollers or shoes may be applied by jacks to opposite faces of the body 4 and, subsequently, to the faces of the casting, if the portion R of the bar is inclined at both faces. Alternatively, the apron 10 at one face, corresponding to a non-inclined face of the portion (R), may be fixed, as shown, and the apron at the other face applied by a jack 11. A similar arrangement applies to the withdrawal rollers 6, 7, hydraulic jacks 12 causing at least the rolls 6 at one side to grip the bar or casting. The bar head (1a may comprise three subheads, Fig. 4 (not shown), to draw three casting simultaneously from a multiple mould or three moulds.
Patent GB-520048-A (GB)
Title: Improvements in electric measuring instruments
IPC: G01R11/185
Filed: 1938-10-17
Abstract: 520,048. Supply meters; compensating meters and instruments for temperature errors. ENGLISH ELECTRIC CO., Ltd., TILSTONE, G., and DONELLY, J. F. Oct. 17,1938, No. 30028. [Class 37] [Also in Group XXXV] A temperature-compensating ' magnetic shunt consists of a plate or strip bridging two points on a magnet core and held in place by core clamping or fixing screws. Permanent brake magnets 3 of an induction type energy meter embrace the disc 1 in front of the spindle 2, the driving magnets (not shown) being behind the spindle. The magnets 3 are mounted on the front of a supporting bracket 4, the back of which carries the driving cores. A non-magnetic clamp, plate 5 clamps the magnets 3 to the bracket 4 by screws 6. The shunt 7 is formed from a flat plate of magnetic material having the desired properties and has holes or slots fitting over the screws 6. The shunt 7 also has horns 7b, separated by a short air gap, lying along and overlapping the edges of the air gap between the lower magnet limbs so that most of the shunted flux passes between these horns. The shunt 7 is placed under the fixing clamp 5 on the front of the magnet 3, the screws 6 passing through the slots in the plate. Alternatively, the shunt 7 may be placed between the magnets 3 and the bracket 4.
Patent GB-146039-A (GB)
Title: Improvements relating to the moistening of tobacco
IPC: A24B3/04
Filed: 1919-12-02
Abstract: 146,039. Powley & Sons, R., and Powley, M. Dec. 2, 1919. Tobacco.-Tobacco is moistened by a mixture of hot air and steam circulated by a fan q through an open-ended chamber a and a perforated box c, heated by inclined steam-pipes f. The tobacco is placed on an endless canvas or openwork belt h driven by gearing and endless chains over the perforated cover e of the box c,. to which steam is admitted by a pipe g fitted with a valve.
Patent GB-865161-A (GB)
Title: Improvements in or relating to a lens focusing mechanism
IPC: G03B3/00
Filed: 1958-09-22
Abstract: 865,161. Focusing lens mounts. KODAK Ltd. Sept. 22,1958 [Sept. 23, 1957], No. 30191/58. Class 97(1) A focusing lens mount comprises an apertured support 11 having a cylindrical surface 14 which surrounds the aperture 12 and on which an objective holder 22 is mounted for axial and rotational movements, a plurality of arcuatelyshaped ramps 16 on the support, each ramp being engaged by a radially extending lug 24 on the objective holder, a focus-adjusting member 30 mounted for rotational but non- axial 'movement on the device and having guideways 36 which are engaged by the lugs 24 on the objective holder 22, and resilient means 26, 26a between the focusing member 30 and objective holder 22 for maintaining engagement of the lugs with the ramps, whereby upon rotation of the focusing member 30 the objective holder 22 is axially adjusted for focusing the objective 21 carried thereby. The support 11 may form the front wall of a camera body, and the focusing-member 30 may be held in place by a plate 33 attached to the camera body. This plate 33 may carry a pointer 43 indicating the focused adjustment. Rotation of the focusing member 30 may be limited by a lug 100 on the plate 33 engaging in a cut-out portion 101 in the flange 31 of the focusing member 30, or, in a modification, by a lug on the focus-adjusting member 30 engaging a recess in the support 11. The objective 21 may be formed integrally with its holder 22 as by moulding from acrylic resin. In one form, the objective may be made up of three lenses, one of which is formed integrally with the holder, and the other two being formed integrally with sleeves which are press-fitted in the holder.
Patent GB-1111251-A (GB)
Title: Improvements in or relating to shaft furnaces for the direct reduction of iron ore
IPC: F27B1/21
Filed: 1966-07-06
Abstract: 1,111,251. Shaft furnaces. HUTTENWERK OBERHAUSEN A.G. 6 July, 1966 [29 July, 1965], No. 30253/68. Heading F4B. In a shaft furnace for the direct reduction of iron ore having a jacketted discharge hopper 3 feeding a vibratory discharge shoot 4, reducing gas inlets 6 feed a ridged gas distributor 5 extending across the furnace. Water or steam circulates in the hopper cooling jacket and the gas escapes below the edges 5a of the distributer which may also have a cooling water or steam jacket. The distributer may be a centrally disposed ridge or a conical or pyramidal hood.
Patent GB-383734-A (GB)
Title: Improvements in and appertaining to brakes for railway vehicles
IPC: F16D65/06
Filed: 1931-11-02
Abstract: 383,734. Brake shoes. CATON, C. H., 6, St. Ives Mount, Armley, near Leeds. Nov. 2, 1931, No. 30268. [Class 103 (i).] To permit of the removal of the brake shoes of railway vehicles from the brake beam without the necessity of dismounting the hangers or beam, the shoe has an open-ended recess or slot to receive the beam and it is retained in position thereon by means co-operating with the shoe and the hangers. As shown in Figs. 2 and 7, the shoe has a pair of rearwardly extending ribs 1 slotted at 3 to receive the end of the transverse beam 6 and between which the hanger 7 is disposed. A removable pin 10 passes through the ribs and the hanger and is so disposed that its distance r from the inner part of the slot 3 is less than that r<1> from the outer edge of the slot so that with the pin in position the shoe cannot be withdrawn from the beam. The hole for the pin, in either the shoe or the hanger is however elongated to permit slight rocking movement of the shoe about the end of the beam. A second hole 4a is provided for the pin, to enable the shoe to be reversed. In a modification, Fig. 5, the shoe has the open-ended recess 3 for the end of the beam as in Figs. 2 and 7, but there are a pair of hangers 7a flanking a single central rib on the shoe which is retained on the beam by pairs of projections 5 on the rib engaging the hangers. To detach the shoe the hangers are displaced laterally to permit the projections to pass them, the shoe being withdrawn by movement transverse to the beam.
Patent GB-827961-A (GB)
Title: Improvements in tubular heat exchangers
Inventor: HUTCHINSON MYLES
IPC: F28F1/36
Filed: 1955-10-24
Abstract: 827,961. Tubular heat exchangers. CLARKE, CHAPMAN & CO. Ltd. Oct. 24, 1956 [Oct. 24, 1955], No. 30363/55. Class 64(3) A heat exchange tube 1 which may be the inner of a pair of concentric tubes is provided with a series of part annular plates 3 extending transversely to its axis and successively angularly displaced such that their non-circumferential edges define at least one helical passage about the tube 1, and the opposed surfaces of adjacent plates define a series of unobstructed partcircumferential passages about the tube 1. Flow through these latter passages may be assisted by the provision on the lead-. ing edge of each plate of a lip 4, and by a similar but oppositely formed lip (not shown) on its trailing edge. The pitch of the helical passage may be varied by changing the spacing between adjacent plates 3. In Fig. 6 for example the spacing between the plates of a group 11<SP>111</SP> is uniform but greater than uniform spaces provided between the plates of a group 11<SP>1</SP>, the two groups being separated by a group 11<SP>11</SP> in which the plate spacing progressively increases. Two helical passages may be provided by plates arranged in diametrically oppposed pairs. The plates may have peripheral flanges whereby adjacent plates are secured to each other and to the tube 1 (Fig. 4, not shown).
Patent GB-769035-A (GB)
Title: Improvements in or relating to tube couplings
IPC: F16L37/46
Filed: 1954-10-22
Abstract: 769,035. Pipe couplings. AKTIEBOLAGET SEPARATOR. Oct. 22, 1954 [Oct. 26, 1953], No. 30471/54. Class 99(1) In a coupling for a first and second pipe 3 and 7. Fig. 1, respectively, comprising a sleeve 6 one end of which extends into the pipe 3 whilst the other end is insertable into the second pipe 7, and a catch 9 to retain the sleeve 6 in the first pipe, the sleeve is angularly movable with respect to the first pipe 3 into one of three positions wherein (1) an aperture 8 in the sleeve is opened to put the pipes into communication, (2) the aperture is sealed by a surface integral with or carried by the first pipe 3, and (3) the catch 9 permits release of the sleeve 6 from the first pipe 3. A milk pail cover 1 has an opening 2 in which the pipe 3 having a flange 4 is secured, the pipe 3 accommodating a sleeve 6 incorporating a flange 5; the sleeve is rotatable within the pipe 3 by means of the catch on the flange 3 that has a groove into which the flange 4 enters. The flange 4 embodies a recess that enables the catch 9 to pass therethrough when assembling the parts whilst rotation of the sleeve 6 is limited by two stops 11 on the flange 4. In a modification, the first pipe forms part of a milk claw. In another modification, the bevelled end of an additional sleeve 16, Fig. 4, is inserted into the first pipe 14 which is part of a milk claw 12 and the other end receives the sleeve 6 in which is formed the orifice 8 that is covered or open depending upon its position relative to the additional sleeve 16; in the assembled state of the coupling the flange 17 of the additional sleeve abuts the pipe flange 4, the flange 17 having a projection 18 that enters a recess 10 in the flange 4 and prevents rotation of the sleeve. The catch 9 on the socket flange 5 engages both flanges 4 and 17. the flanges forming sealing surfaces which may be thickened near the stops 11 to ensure the flanges are pressed into firm engagement at the limits of angular displacement; resilient washers, not shown, may be inserted between the flanges.
Patent GB-1337804-A (GB)
Title: Control system for controlling pressure medium flow between the  motors and the common pump of a hydrostatic propulsion drive
IPC: F16H61/46
Filed: 1971-06-29
Abstract: 1337804 Controlling hydrostatic transmissions DEERE & CO 29 June 1971 [29 June 1970] 30512/71 Heading F2D A control system for controlling the flow of oil between a pump and two (as shown) or more motors to prevent a motor which starts to race or run rapidly from reducing the pressure of oil to the remaining motor(s) comprises a chamber 350a fed by oil from a connection 350 from the pump (not shown), with which are associated admission regulating slide valves 353 (one per motor), within control sleeves 352, a conduit 351 supplying the oil to a motor (not shown). Each slide valve 353 is divided into two chambers by a disc 359 having a small aperture 360, this disc being biased (as is the slide valve 353) by a spring 354, differential pressure on this disc causing the slide valve to move (as a result of oil being supplied to chamber 350a) and bringing radial passages 358 into communication with passages in the control sleeve leading to the conduit 351, and so supplying a motor. On the rapid running of this motor the differential pressure on disc 359 increases, moving the valve further into its control sleeve 352, and cutting off the supply save for a small amount passing through small bore passages 360, 371, 364 and 363. As shown two slide valves are mounted coaxially opposite one another with a spring 355 holding the control sleeves in their respective bores. On operation of a reversing valve (Fig. 1, not shown), the direction of supply to the motors is reversed and a pressure on the back of the control sleeve (the return from the motor being by the conduit 351, and the slide valves moved by the pressure to a position in which the bores 358 does not communicate with those in the sleeve) causes it to move against the action of spring 355 and so allows communication between conduit 351 and the chamber 350a by passages 361.
Patent GB-446178-A (GB)
Title: Improvements in cam-operated electric switches particularly for electric cookers
IPC: H01H19/08
Filed: 1934-10-24
Abstract: 446,178. Quick-make switches. DIAMOND H SWITCHES, Ltd., Gunnersbury Avenue, Chiswick, London. Oct. 24, 1934, No. 30516. Convention date, July 3. [Class 38 (v)] A switch for use on an electric cooker comprises an operating lever 10 moulded integrally with a roller 55 having endwardly projecting trunnions 56 resting in slots in partition walls 21 of the base A and held in position by a cover plate B. The roller 55 is formed with three cams 58, 59, 60 which, in certain positions of the lever 10, engage raised portions 39 of three spring contact arms 37 each mounted on a conducting strip 38. The roller 55 also carries a notched plate 63 which works in a slot in a raised web 22 and co-operates with a spring- pressed ball (not shown), to locate the roller in its three positions. The cams 58, 59, 60 are so arranged that in the mid position of the lever 10, all the cams engage the raised portions 39 of the contact springs and all the springs are disengaged from the fixed contacts 30. Movement of the contact springs is limited by stops 61 formed on the base, so as to prevent drawing a long arc. If the lever 10 is moved to one side or the other, the cam 58 and one of the other cams is disengaged to make the corresponding contacts. Switchboards.-A number of switches are mounted side by side on the base A so that all the load terminals 36 are arranged along the rear edge of the base. Three bus bars 11, 12, 13 are arranged in grooves along the underside of the base, the line terminals 43 being arranged at one end. Each strip 38 carrying a contact spring can be connected to any one of the bus-bars by a screw 40 passing through the bus-bars and the base and engaging the corresponding hole 46 in the strip 38. The holes 47 in the base are closed by frangible barriers 48 which are broken as required for admitting a screw 40, the unbroken ones preventing accidental contact.
Patent GB-1002750-A (GB)
Title: Method and apparatus for stretching thermoplastic synthetic fibres
IPC: D02J1/22
Filed: 1964-08-04
Abstract: Thermoplastic synthetic fibres which have been subjected to periodic and/or cyclical variation in temperature in a direction lengthwise and/-or crosswise with respect to the travelling direction of the fibres during stretching (see Division B5) may be cut or stretch-broken into staple length, mechanically crimped and spun into yarn which is heat-treated in the relaxed state to develop bulkiness.
Patent GB-1134185-A (GB)
Title: Improvements in or relating to control systems for hydraulic drives in a plastics converting machine
Inventor: TITTEL HARALD
IPC: B29C45/76
Filed: 1965-11-19
Abstract: 1,134,185. Fluid-pressure servomotor systems. WERKZEUGMASCHINENFABRIK JOHANNGEORGENSTADT, VEBNov.19, 1965, No.30595/65. Heading G3P. An electro-hydraulic or pneumo-hydraulic control system for an injection moulding machine comprises a variable displacement pump 1 supplying liquid to consumers 6, 7, 8, 9 under the control of valves or pumps 2, 3, 4, 5. The valves 2, 3, 4, 5 are controlled by an electric or pneumatic programme transmitter 14 which sets the sequence of operation and also receives control signals 15, 16, 17, 18 in response to parameters, such as pressure, temperature &c. of the machine. The programme transmitter 14 also supplies the signal for controlling the pump displacement, a feedback 22 being provided to a summing point 19. A pump output pressure feedback 23 is fed to the programme transmitter which also receives actual position signals of the consumers 6, 7, 8 and 9 as monitored by transducer 10, 11, 12, 13 for balancing the transmitter.
Patent GB-264439-A (GB)
Title: Improved shackle
IPC: F16B45/06
Filed: 1926-12-03
Abstract: 264,439. Brighouse, J. Dec. 3, 1926. Hooks, safety and closed.-A shackle of the sister-hook type with S-shaped members 1, 2 pivotally connected at their centres has a spring 4 in a recess in the member 1 acting between the head 5 of the pivot screw 6 and the shoulder 7, the members being held in closed position by the spring and by complementary ridges 9 and grooves 10 on the contracting faces of the superposed extremities of the members. Specification 228,806 is referred to.