baber/WOPTO huggingface dataset:
Patent GB-278369-A (GB)
Title: Improvements in or relating to the bodies of road vehicles
IPC: B60J7/08
Filed: 1927-09-29
Abstract: 278,369. Soc. Anon. A. Citroen. Oct. 2, 1926, [Convention date]. Bodies, particularly metal bodies, of road vehicles are constructed in two main parts, the lower part 1 comprising preferably the cowl 2, doors 3, sides including wheel recesses 5 and the back 6 and an upper part which may be of various designs. The upper part 7 is permanently connected by clamps, welding, &c. to the lower part, which is open at the top, along the line 8.
Patent GB-970752-A (GB)
Title: Improved planetary motion material cutting apparatus
Inventor: MARSHALL WALTER
IPC: B23D25/04
Filed: 1962-07-05
Abstract: 970,752. Grinding. SPEEDEX (ENGINEERING) Ltd. July 4, 1963 [July 5, 1962], No. 25785/62. Heading B3D. [Also in Division B5] Apparatus for cutting material, such as tubing 6 issuing from an extrusion machine, during its linear motion comprises a driven rotary saw 5 or abrasive disc which is moved with a planetary motion and is mounted with its electrical driving motor 11 on movable carrier means 8, means for causing the carrier means and thus the saw to have inward feed and outward return movements relative to the material, and electrical overload controlled saw release means 27 which automatically ensure the carrier means having a withdrawal movement to remove the saw from its cutting position should the saw wedge in the material. The apparatus is similar to that described in Specification 907,969 and consists of a ring 4 which carries the carrier means and saw 5 or abrasive disc and is rotated by an electric motor drive 7 in a carriage 3 movable along guide 2 on a base 1. The carrier means comprises a lever which has double ends 8, 9 and is mounted on a pivot 14 on the ring 4. The end 9 of the lever is adjustably secured by a bolt engaging any one of a plurality of holes 16 to a bracket 10 and arm 10a which carry the saw 5 and its motor 11, the drive being transmitted to the saw by a bolt 12. The motor is adjustably mounted on the bracket to vary the tension of the belt. The other end 8 of the lever is angled and carries at its extreme end a solenoid 27 having a roller 28 engaging a pivoted catch 25 which, when moved to its operative position by energization of the solenoid, engages an end 29 of a feed lever 30 mounted on a pivot 31 on the end 8 of the lever. The feed lever has a roller 33 which co-operates with a cam 39 to rock the double-ended lever 8, 9, during rotation of the ring 4 to feed the saw into the material, the lever 8, 9 being maintained in its operative position by a latch 35 engaging a pin 34 on the feed lever until, upon the ring and saw making one cycle about the material or upon an overload occurring as a result of wedging of the saw blade, the solenoid is de-energized to permit a spring 26 to withdraw the catch 25 from the end 29 of the feed lever which can thus move to disengage the latch 35 so that a spring 32 can rock the lever 8, 9 and retract the saw from the material. An audible and/or visible warning means may be incorporated in the electric circuit. The material is clamped to travel with the saw by telescopic arms 43 mounted in guide brackets 44 on a structure 45. Each arm has a roller engaged by a rectangular ring common to all the arms, whereby rotation of the ring causes the arms to move to grip the material. The ring may be moved by pneumatic, hydraulic or electrical means. In an alternative embodiment, the lever 8, 9 is replaced by a guided slide carrying a lever similar to the lever 30.
Patent GB-1033788-A (GB)
Title: Support chock for mine roofs
IPC: E21D23/00
Filed: 1964-06-22
Abstract: 1,033,788. Advancing mine roof supports. RHEINSTAHL WANHEIM G.m.b.H. June 22, 1964 [July 2, 1963; Sept. 16, 1963], No. 25788/64. Heading E1E. A mine roof support which is advanced as a unit relatively to a conveyer (not shown) comprises forward and rear pairs of props 1, 1a, Fig. 1, ball-jointed to individual roof bars 2 and individual or shared base plates 5, the props being urged upright by guide sleeves 12, 20 pivoted on spring arms 11, 19 secured to an inverted channel girder 3. The girder 3, Fig. 3, houses an advancing jack 14 and is connected by pins 9 to cups 4 receiving the forward props 1. Rubber pads 13 are provided between the spring 11 and girder 3, and between the spring 11 and sleeves 12. The rear base plate 5 is centrally pivoted to the girder 3 (Fig. 4, not shown), the cups 4 receiving the rear props 1a being vertically displaceable in forks 15 on the girder. Consecutive roof bars 2 are interconnected by spring-loaded bolts 2b engaging slotted flanges thereon. In a modification (Figs. 5, 6, not shown) each rear prop 1a has its own base plate and the rear cups 4 have slotted connections with a beam swingable about the axis of girder 3, the beam including an annular element loosely enveloping the girder 3. The spring carrying the guide sleeves may be secured to the girder or the beam. In another modification, (Figs. 7, 8 not shown) a third pair of props interconnected by a U- spring is mounted behind the rear props 1a by pivoted plates on the roof bars and base plates. In a further modification each of four props has an individual base plate 40 (Fig. 10, not shown) and each plate 40 is pivoted to a central floorplate 42 secured to the girder 3. Spring arms 45 are connected to guide sleeves 44 by pivots 44a and slots 45a. To prevent their digging into the floor during advance, the front plates 40 are biased upwardly by spring pistons 49. In a still further modification each prop 1 (Fig. 14, not shown) is tiltably connected to a base plate 52 pivoted at 54 to the girder 3, and the forward and rear base plates may be pivotally or rigidly connected in pairs-as by the joint 55.
Patent GB-1432510-A (GB)
Title: Replaceable cutting edge assembly for a material-handling implement
IPC: E02F9/28
Filed: 1974-06-11
Abstract: 1432510 Material-handling implement-cutting edge assembly CATERPILLAR TRACTOR CO 11 June 1974 [15 June 1973] 25902/ 74 Heading E1F A cutting edge assembly mountable on the leading edge of a material-handling implement comprises a base plate 12 securable to said edge and having openings 22 located rearwardly of its leading edge, a cutting member 17 having a slot 13 facing away from its cutting edge 18 for receiving the leading edge of the base plate and rearwardly extending tangs 23 for entering the openings 22 when the member 17 is mounted on the base plate 12, and wedge means 24 for urging the cutting member and the base plate into a locked together relationship. Digger teeth may be mounted on the cutting member 17.
Patent GB-386280-A (GB)
Title: Improvements in devices for protecting growing plants and the like
IPC: A01G13/04
Filed: 1932-09-17
Abstract: 386,280. Seed and plant protectors. MATHER, J. C., 33, Eaton Avenue, Bletchley, Buckinghamshire. Sept. 17, 1932, No. 25930. [Class 6 (ii).] A protector comprise! two wire-netting or other open-work metallic sheet! hinged together, a sheet of transparent or trans lucent flexible materia. secured to one of the metallic sheets, and means for securing the appliance to the ground One metallic sheet 1 if staked to the ground in the form of an arch or tunnel of semicircular, inverted-V, or invertedchannel shape in cross section. The other .sheet 2, hinged to it, is corrugated or pleated, and may be used in open position or closed down and secured on the sheet 1. Both sheets are bound along opposite edges with a binding of waterproofed or other soft textile material 4 secured by staples or pins or by sewing. U-shaped metal clips 6 may be spaced along the edges and secured by the staples. The corresponding edges of the transparent or translucent sheet 7 may be interposed beneath the binding material 4 and may be secured by the clips and staples. Short lengths of binding, with staples and clips, may be used to secure the other edges of the sheet 7. The securing stakes 9 may be the ends of a strengthening wire passing across the sheet 1 and provided with a handle.
Patent GB-1171407-A (GB)
Title: Electrode and Method of Preparation
Inventor: HALEY ALFRED JOHN
IPC: C25B11/04
Filed: 1967-06-05
Abstract: 1,171,407. Composite electrodes. ENGELHARD MINERALS & CHEMICALS CORP. June 5, 1967 [June 7, 1966], No.25936/67. Heading C7B. A composite electrode, particularly an anode for electrolysis of brine solutions in producing chlorine or perchlorates, is produced by depositing e.g. by electro-plating a ductile Pt group metal (Ru, Rh, Pd, Os, Ir, Pt or alloys thereof) coating at least 0À03, preferably not greater than 1, mil thick upon a refractory metal (Ti, Ta, Nb, Zr, Mo or alloys thereof) support, heating the coated support between 700 and 1400‹C. in a non-oxidizing atmosphere e.g. a stream of argon to effect interdiffusion, and mechanically working, e.g. by burnishing, rolling, drawing or swaging, to provide a non-porous coating at least 0À02, preferably not greater than 1, mil thick, having a surface roughness of less than 10 microinches (RMS) and a chlorine overvoltage at 500 A.S.F. of between 0À5 and 1À2 volt. Subsequently a porous Pt group metal layer may be deposited upon the coating having a chlorine overvoltage of less than 0À5 volt at 500 A.S.F. A Pt coating is preferably electro-plated from an electrolyte containing 6À5 5 g/l Pt (as diammino dinitrite), 100 g/1 Na 2 HPO 4 , 20 g/1 (NH 4 ) 2 HPO 4  and 10 ml / p NH 4 OH. Prior to deposition, a Ti support is preferably cleaned e.g. in concentrated HC1 and roughened by etching. Alloys may be used for the support, e.g. Ti-5% Zr, and coating e.g. Pt-10 or 20% Pd.
Patent GB-425685-A (GB)
Title: Method of producing relaxation oscillations, more particularly for television purposes
IPC: H03K4/86
Filed: 1933-09-20
Abstract: 425,685. Valve generating circuits. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, and SCHLESINGER, K., 39, Friedrichstrasse, Friedrichshagen, both in Berlin. Sept. 20, 1933, No. 25942. Convention date, Sept. 27, 1932. [Classes 40 (iii) and 40 (v)] To prevent visible return lines on the screen of a television cathoderay tube with scanning controlled by relaxation oscillations produced by the use of a grid-controlled gas-filled discharge tube 3, the ordinary discharge of the condenser 5 is interrupted at the beginning of the slow part of the discharge curve which produces a corresponding visible path on the screen. This is done by supplying to the oscillating circuit a counter potential at least as great as the potential of the condenser at that time. The counter potential may be derived from the oscillating potential by a stepdown transformer with its primary 10 in the anode circuit of a power amplifier 7 connected to the discharge tube, and the secondary, of low high-frequency impedance, in the anode circuit of the discharge tube. A retarding network 8, 9 is connected between the anode of the amplifier and the primary of the transformer. Alternatively, the counter potential is derived from received synchronizing-signals through a phase shifter and a high pass filter, Fig. 3, (not shown).
Patent GB-983263-A (GB)
Title: Improvements in or relating to nuclear reactor installations
Inventor: TERRY JAMES BERNARD
IPC: G21C13/00
Filed: 1962-07-06
Abstract: 983, 263. Nuclear power plant. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. June 26, 1963 [July 6, 1962], No. 25997/62. Drawings to Specification. Heading G6C. In a nuclear reactor power plant the reactor biological shield and heat exchangers are mounted together within the containment building. The heat exchanger and reactor relative positions are such that coolant will flow from the exchanger to the reactor if pumping pressure is lost. The length of ducting required between the exchanger and reactor, and hence the size of the containment vessel, is reduced by the inclusion of a pump in the ducting.
Patent GB-1304575-A (GB)
IPC: G05B19/23
Filed: 1970-05-29
Abstract: 1304575 Programmed control of machine tools WARNER & SWASEY CO 29 May 1970 [25 July 1969] 26159/70 Heading G3N A control system for a machine tool responsive to coded data in a stored programme for operating a servo to move a member a desired distance, has offsetting means including a separate settable store for offset data which in response to data in the programme supplies a pulse train, from a pulse generator, to the servo for offsetting the member. As shown, an indexable turret T on a slide 10 is positioned by lead-screws 11, 12, driven by motors, such as x-axis motor 16, controlled by a tape read by a reader 18 on command a block at a time into a buffer store 37. A command generator 20 is set through gates 36, from the store 37 to modify a supply of clock pulses to a sign and anti-coincidence circuit 21 directing forward or reverse pulses, in dependence on a sign circuit 27, to a bi-directional counter 26. The count in counter 26 is applied, through a digital-to-analogue converter 29 to an amplifier 32 supplying the motor 16. A pulse-generator 31 coupled to the lead-screw 12 supplies feedback pulses to the circuit 21 to count the counter 26 back to a reference count signifying that there is no error in the position of the slide 10. A null detector 33 provides a signal to a completion circuit 34 to initiate supply of a new command through the gates 36 and may also activate the reader 18 to set the next command in the buffer store 37. Offsets are set in by thumbwheel switches 39 having binary code numbers assigned thereto. An active store 41 is set from the buffer store 37 through gates 36 and the appropriate switch 39 selected by a decoder 44 ooening a gate 43. The number in the store 41 is monitored by a comparator 45 and is updated, when different from that for the next command in the buffer store 37, in response to a change-offset command from a circuit 50. At the beginning of a change offset sequence a counter 53 has a count therein indicative of the existing position of the slide 10. The counter 53, and through the circuit 21 the servosystem counter 26, is then counted down to zero which is detected by a circuit 52, setting through an AND-gate 60, the count for the selected thumbwheel switch into the store 53 and through an AND-gate 63, the sign into a memory 54. The pulse generator 100 through an AND-gate 51 then counts down counter 53 and through circuit 21 positions the slide to the new offset position. The second zero is detected by the circuit and a count of two established in a counter 58 whereby the storage counter 53 is pre-set to the number of the next pre-selected thumb wheel. For the control of two-axes the thumb-wheel switches and circuitry are duplicated except for the use of one change offset circuit 50 in order to prevent operation of either lead-screw in response to the active registers while a new offset is being inserted. The offset arrangement is used to provide offsets in dependence on a tool selected from the turret T in accordance with the stored programme. The offset being determined by measurement or taking a cut.
Patent GB-833507-A (GB)
Title: Improvements in or relating to rectifying circuits
IPC: H02M7/36
Filed: 1956-08-27
Abstract: 833,507. Rectifying. SIEMENS-SCHUCKERTWERKE A.G. Aug. 27, 1956 [Aug. 27, 1955], No. 26206/56. Class 38 (2). In each phase of a rectifying system supplying a load 10 from a transformer 1, a semiconductor rectifier 4 is connected in series with a synchronously operating switch 5. The switch is closed at instants in each conducting half-cycle variable to give phase angle control of the output voltage, by energizing winding 8 from a phase-shifting transformer 12. It is opened shortly after the start of each reverse voltage half-cycle by energization of winding 9 connected in series with resistor 13 across rectifier 4 so that the switch opens before the reverse current in the rectifier has risen undesirably. So that the switch is not opened in the conducting half-cycles, the resistance of circuit 9, 13 is selected to keep the current during that half-cycle sufficiently low, or a rectifier 15 is included, Fig. 4. Switch 5 may be driven by a pair of blocking magnets. The switch may be bridged by an auxiliary rectifier (Fig. 2, not shown). The circuit including the opening winding 9 may bridge both rectifier 4 and switch 5 so that the opening force is maintained after the. opening, Fig. 4. A switching choke 17 may be connected in series with the switch and provided with premagnetizing windings 18, 19 for keeping the current small for a short period after switch closure and subsequently reversing the magnetization for the next closure. The switching choke is included ig the path bridged by the circuit includinn opening winding 9 to prevent currents in that circuit affecting its magnetization. The back magnetization may be effected by reverse current during the blocking half-cycle passing through a by-pass rectifier bridging the switch, Fig. 5 (not shown). The same switching choke may produce an opening current step. The circuit including opening winding 9 may be used as a potential divider from which is derived part of the phase voltage to backmagnetize the switching choke between the passage through zero of the commutating current and the opening of the switch. The back magnetization is subsequently completed by current through the by-pass rectifier, Fig. 5 (not shown). A saturable transformer premagnetized by a current carrying winding, Fig. 6 (not shown), or by a permanent magnet Fig. 7 (not shown), may be interposed between the bridging circuit including resistor 13 and the circuit breaking winding 9 which is then energized by clearly defined pulses as the transformer core passes through desaturation. Specification 728,616 is referred to.
Patent GB-1184754-A (GB)
Title: Electrolytic Hydrodimerisation Process
Inventor: BIZOT JEAN
IPC: C25B3/29
Filed: 1968-05-31
Abstract: 1,184,754. Electrolytic hydrodimerization process. RHONE-POULENC S.A. 31 May, 1968 [1 June, 1967], No. 26278/68. Heading C2C. [Also in Division C7] Process for the electrolytic hydrodimerization of an α,#-ethylenic compound e.g. nitriles, aldehydes, acrylates and acrylamides which comprises subjecting to the electrolysis, in a cell having a single compartment, a homogeneous aqueous solution of the said α,#-ethylene compound and an electrolyte consisting of a quaternary ammonium salt of an oxidized mineral acid not capable of being oxidized into a product capable of harming the reaction, or reduced (preferably from 5 to 30% by weight of the solution subjected to the hydrolysis) under the electrolysis conditions, the concentration of the said ethylenic compound in the reaction medium being below 10À5% and the pH of the electrolysis solution is preferably between 6 and 10.
Patent GB-406769-A (GB)
Title: Improvements in or relating to fasteners
IPC: A41F11/02
Filed: 1932-09-21
Abstract: 406,769. Clips. SCHAFER, F., 2, Dufourstrasse, St. Gallen, Switzerland. Sept. 21, 1932, No. 26289. [Class 44.] A clip of bendable metal consists of a limb B, having an upstanding lug N, and a limb A which is pressed towards the limb B and deformed so that its end engages frictionally with the root of the lug N. When used to secure together a pair of stockings, the clip may have a card of mending wool secured to it. For securing together materials of large mesh, e.g. curtains, the ends of the arm A and of the lug N are bent outwards ; this form of clip may be used as a card index tab. When used as a paper fastener, the ends of the arm A and the lug N are pointed to pierce the paper. As applied to fastening paper bags and paper on bunches of flowers, the clip embraces the bag neck or the flower stems and the lug N is bent over as an additional security. The upper limb A may be of undulating form. The clip may also be used for the attachment of badges.
Patent GB-938653-A (GB)
Title: Rotary hosiery mending apparatus
IPC: D04B17/00
Filed: 1962-07-09
Abstract: 938,653. Sewing. S. MARLEY. July 9, 1962 [Aug. 8, 1961], No. 26310/62. Class 112. [Also in Groups XXXV and XXXVII] Apparatus for re-positioning pulled loops in knitted fabric comprises a rotary workengaging element, the direction of rotation of which is adapted to be changed by means of a foot-operated mechanism. As shown, an elongated blade 37 having a pointed, workengaging end 45 is pivoted at 36 adjacent its other end eccentrically on a rotary hub 32 journalled in a handle 25, and a slot 43 formed in blade 37 slidably engages a pin 44 rigid with handle 25. End 45 thereby moves in an elliptical path when hub 32 is rotated, via a flexible drive shaft 11, by a motor 12 mounted in a casing 64. The direction of rotation of motor 12 may be changed by actuation of a foot-operated switch 20 comprising a pivoted pedal 82 spring-biased to the raised position. Partial depression of pedal 82 shifts a switch blade 73, rigid therewith, into engagement with a fixed contact 90, and full depression of pedal 82 engages blade 73 with a fixed contact 93. The motor has opposed pairs of stator windings 101, 102, interconnected by a lead 105, and 103, 104 interconnected by a lead 106. Contacts 90 and 93 are respectively connected to coils 101 and 103 by respective leads 91 and 94. A capacitor 67 is shunted between leads 91 and 94. The arrangement is thereby such that when blade 73 engages contact 90 coils 101 and 102 are connected directly to the mains, and coils 103, 104 are connected to the mains via capacitor 67. The motor then runs in one direction. When blade 73 engages contact 93, coils 103 and 105 are connected directly to the mains, and coils 101, 102 are connected to the mains via capacitor 67. The motor then runs in the other direction.
Patent GB-873816-A (GB)
Title: A method for the measurement of the density of a medium
IPC: G01N23/09
Filed: 1959-08-04
Abstract: 873,816. Radiation utilizing. INSTITUTE FOR ATOMENERGE. Aug. 4, 1959 [Aug. 5, 1958], No. 26611/59. Class 40(3) [Also in Group XL(a) ] A method of measuring the density in particular the local mean density of a medium consisting of a gaseous phase and/or one or more liquid phases such as the coolant or moderator of a nuclear reactor, is characterized in that a neutron absorbing body is placed in the medium which is situated in a neutron flux the strength of which is measured near the surface of the body. In the apparatus shown in Fig. 1, five copper foils 2 are secured to a cadmium tube 1 supported on an aluminium rod 3 and surrounded by an aluminium tube 4. The space between aluminium tube 4 and a further aluminium tube 5 is filled with heavy water to which air can be added from an inlet 7. The apparatus is calibrated by immersion in a reactor for 30 minutes for each of a number of different volume fractions of air in the space between the two tubes, the neutron flux being assumed proportional to the induced beta activity of the copper foils. In another apparatus, Fig. 2, a uranium ring 8 surrounds a constriction in a cadmium tube 9 and is surrounded by an aluminium sleeve 10. In a neutron flux the uranium gets hotter than the aluminium and the temperature difference is measured by a copper-constantan thermocouple (not shown): the apparatus may be calibrated by surrounding it with known mixtures of heavy water and air, as with the apparatus of Fig. 1. The method is applicable to measuring the volume fraction of vapour in the coolant of a boiling water reactor.