baber/WOPTO huggingface dataset:
Patent GB-967244-A (GB)
Title: Improvements to seed sowing machine furrow shares
IPC: A01C7/20
Filed: 1961-11-02
Abstract: 967,244. Seed sowing machines. USINES EDOUARD DE SAINT-HUBERT. No. 2, 1961 [Nov. 3, 1960], No. 39309/61. Heading A1D. A furrow opener assembly for a seed sowing machine comprises a furrow opener 1 mounted on an arm 2 which is pivotally mounted in a box 4a which is clamped to an axle 5 of the sowing machine. A C- shaped element 13 is mounted on a sleeve 12 on the axle or pivot 3 of the arm 2. A spring 14 is connected to the bottom arm 13b and to a pin 15 on the arm 2. The working depth of the furrow opener is adjusted by means of a screw 16 which abuts against the top arm 13a of the element 13. A rake 19 is provided for covering the seed and is spring-urged into contact with the ground. The rake may be held clear of the ground by means of a pin 23.
Patent GB-1481994-A (GB)
Title: Bi-directional automatic line blocking system
IPC: B61L23/22
Filed: 1974-09-10
Abstract: 1481994 Track circuit CENTRALNY OSRODEK BADAN I ROZWOJU TECHNIKI KOLEJNICTWA 10 Sept 1974 [12 Sept 1973] 39365/74 Heading B7N In an arrangement for controlling movement of trains in both directions over a track circuit 1 with insulated ends, in which a control unit is provided at each end of the circuit each comprising a coupling transformer 2, transmitter 3, receiver 4, co-ordinating unit 5 and information display unit 6, the units transmit to and fro over the circuit in the absence of a train at a rate controlled by one of the units and when a train approaches the track circuit the transmitter at the train entering end is stopped until its receiver detects by the absence of signals from the opposite end that the train has entered the circuit. Both transmitters can transmit to the track circuit but one is made subordinate so that when the track circuit section is clear it transmits only after reception of a signal from the opposite end of the circuit. In the absence of a train both display units 6 indicate that the track is clear and when the track is occupied neither receiver receives a signal even though both transmitters are operating and the display units 6 act to prevent an entry signal being given any other train.
Patent GB-1367611-A (GB)
Title: Air conditioning system
IPC: F24F11/06
Filed: 1971-08-23
Abstract: 1367611 Air conditioning buildings; heating or cooling buildings BORG WARNER CORP 23 Aug 1971 [11 Sept 1970] 39414/71 Headings F4V and F4U An air conditioning system for a multi-room building comprises room units 10, 11 in rooms A and B, each unit having cooling and heating heat exchangers 15, 16 respectively and a primary air outlet nozzle 13 or a fan 19 to induce room air circulation, and a four-pipe water circulation system 24, 31 connecting the heat exchangers 16, 15 to a water heater 25 and cooler 32, wherein flow of water through individual heat exchangers is controlled by electric pumps or electromagnetic valves 38, 39. Each pump includes a magnetic rotor 40 driven by a motor 41 through a rotating magnet 32. The pumps 38, 39 of each individual unit 10 or 11 are actuated one at a time by a common switch in response to a room temperature sensor 43. Either of the pumps 38, 39 may also be actuated independently of the signal from sensor 43 by a humidistatically controlled switch.
Patent GB-804484-A (GB)
Title: Improvements in electrically heated apparatus
IPC: H05B3/74
Filed: 1956-12-28
Abstract: 804,484. Electric hotplates. KANTHAL A. B. Dec. 28, 1956 [Dec. 30, 1955], No. 39498/56. Class 39(3) A hotplate comprises resistance wires 8, 9 of an alloy containing 2 to 10 per cent by weight of aluminium, located in grooves 2, 3 formed in an insulating body 1, e.g. of ceramic fireproof material, and a transparent fireproof cover 10, e.g. of glass. Holes 4-7 in the body 1 accommodate the terminals of the wires 8 and 9 and operate as air vents wherethrough air is admitted to the wires on whose surfaces there is formed at high temperature an adhering light-coloured oxide layer consisting essentially of aluminium oxide.
Patent GB-1261149-A (GB)
Title: Separating multi-filament yarns
IPC: B65H54/32
Filed: 1970-08-17
Abstract: 1,261,149. Separating yarns to form subyarns. UNITIKA Ltd. 17 Aug., 1970 [21 Aug., 1969], No. 39519/70. Headings DID and D1F. Apparatus for separating a multifilament yarn 1 into sub-yarns and winding the subyarns into taper-ended packages comprises a yarn separating guide 4 for the multifilament yarn 1, a winding spindle 6 and a reciprocally movable sub-yarn guide 5 for each sub-yarn, and means for decreasing the extent of traverse of the sub-yarn guides 5 at a rate dependent on the rate of winding the sub-yarns. The spindles 6 and associated guides 5 are preferably equally spaced from the separating guide 4 so that the tensions in the sub-yarns are equal. In operation, the spindle 6 is rotated at a constant speed so that as the diameter of the package increases the linear speed of the sub-yarn and hence the yarn 1 increases. The linear speed of the yarn 1 is transmitted to a touch roll 39 contacting the outer surface of the supply package 2. The touch roll 39 is mounted on a pivotable arm 40 which also carries a speed reducer 45 and cam wheel 46; by means of a continuous belt, the speed of the touch roll 39 is transmitted to the cam wheel 46 via the speed reducer 45. Rotation of the cam wheel 46 operates a switch 48 to energise or de-energise a solenoid 35. The plunger of the solenoid 35 carries a pawl which turns a ratchet wheel 31 fixed on screwthreaded shaft 29. The shaft 29 carries internally threaded traverse limiting means 12 which are prevented from rotation with the shaft 29 and thus move along the shaft on rotation thereof by the ratchet wheel 31. The sub-yarn guide 5 is reciprocated by means of a doubleended hydraulic piston 15 acting on a rod 10 fixed to the end of the supporting rod 13 of the guide 5. Each traverse limiting means 12 carries a switch 12a connected to a valve 19. A follower 11 on the rod 10 operates the respective switch 12a at the end of a stroke to operate the valve 19 to reverse the flow of fluid in the cylinder 16 of the hydraulic piston 15. Thus increase of speed of winding causes a corresponding increase in rate of decrease of traverse extent to form an even taper-ended package. A roller 50 is provided contacting the multifilament yarn 1 and the roller is mounted on an arm 51 such that absence of yarn 1 causes switch 54 to operate to stop the machine.
Patent GB-839726-A (GB)
Title: Improved device for actuating hinged elements
IPC: A47K13/10
Filed: 1957-12-19
Abstract: 839,726. Closet seats and covers. COMPAGNIE INDUSTRIELLE DU CONFORT. Dec. 19, 1957 [May 9, 1957; Aug. 26, 1957; Aug. 27, 1957], No. 39576/57. Class 26. [Also in Group XXIV] A linkage for moving the pivoted seat 1 and cover 2 of a sanitary closet, about a pivot 3 successively in one direction at least on repeated operations of an actuating member 18 comprises an arm 14 coupled to the member 18 and forming part of a parallelogram linkage 16, 17, 19, 20 and carrying a pin 13 cooperating with a profiled cam plate 4 on the seat and a recessed cam plate 6 on the cover. The cam plate 4 has a profile bounded by pockets 7, 8 and the recess 9 of plate 6 follows the same profile but is extended at 12 and has a pocket 11 intermediate itslength. The parallelogram linkage is located on a fixed pivot 17 and the side 19, 17 is extended to 21 to which point a spring 22 is attached, the other end being secured to the plate 6. Thus, with the parts as in Fig. 1, the spring 22 urges the pin 13 to the left to engage in the pockets 7 and 10 of plates 4 and 6 so that on an upward movement of member 18 both seat and cover are raised to the position in Fig. 2. On return movement of member 18 the spring 22 which has moved across a dead-centre position urges the pin 13 to the right so that the next upward movement of member 18 engages the pin 13 with the pocket 8 of member 4 only, the pocket 11 of plate 6 being masked by projection 26 of plate 4, and the seat is restored to its down position. On a subsequent upward movement of member 18 the pin 13 engages in the pocket 11 of plate 6 to move the cover downwards and restore the parts to the Fig. 1 . position. Actuation of the member 18 can be effected manually by a foot pedal or by hydraulic or electric devices controlled by suitable valves or switches.
Patent GB-1329939-A (GB)
Title: Tuning indication for radio-frequency equipment
IPC: H03J1/04
Filed: 1972-08-25
Abstract: 1329939 Radio receiving circuits INTERNATIONAL STANDARD ELECTRIC CORP 25 Aug 1972 [26 Aug 1971] 39637/72 Heading H3Q In a tuning arrangement for R.F. equipment, comprising a tuning indicator having a display of light-emitting elements, an R.F. tuning circuit having one or more tuning elements and means for producing a tuning voltage controlling the tuning, these means are arranged to control also the on and off state of the light-emitting elements to give a different indication for respective tuning frequencies. In an embodiment each timing pulse from pulse generator 5 advances by unity the count in a binary counter 6: a digital to analogue converter 7 connected to the outputs from counter 6 generates a corresponding voltage which increases in a staircase form and is used for tuning variable-capacity diodes in a radio receiver (Fig. 1, not shown). When tuned to a carrier wave of sufficient field strength a stop circuit (10) stops the pulse generator. A code converter 11 is also coupled to the outputs of counter 6 and produces for each of several output combinations of the counter an associated switch-on signal for one of a plurality of lightemitting diodes 12 associated with scale plate 13.
Patent GB-932930-A (GB)
Title: Digital resolver-integrator
IPC: H03M1/00
Filed: 1961-11-06
Abstract: 932,930. Electric selective signalling systems. BENDIX CORPORATION. Nov. 6, 1961 [Nov. 8, 1960], No. 39653/61. Drawings to Specification. Class 40 (1). A system for obtaining the cartesian components of a vector (r, #) includes a photoelectrically sensed disc one track on which carries marks spaced in accordance with the function sin # over the range 0 to 90 degrees for # and a second track carries marks similarly spaced but in the reverse order. Thus in one revolution of the disc the first track produces pulses representing, by their number, sin 90 and in half a revolution, for example, it produces pulses representing sin 45. By means of an angularly adjustable head which senses a fixed reference mark, it is arranged that only those pulses which occur over a certain angular range of the disc are counted. The movable head is coupled to the input # by a 4-to-1 stepup gear so that the angular displacement of the head equals 4#, and since # has a range of 360 degrees a second disc is provided which indicates which quadrant 6 lies in. The disc carrying the sinusoidally spaced marks is rotated at a speed proportional to r, and the pulses produced, together with the quadrant indication for # are fed to a logic circuit which produces two trains of pulses representing by their average frequency r.sin # and r.cos # respectively. Specification 918,715 is referred to.
Patent GB-1032541-A (GB)
Title: Ophthalmic lens and method of making same
IPC: B24B13/04
Filed: 1962-10-22
Abstract: 1,032,541. Grinding lenses. J. C. BAND. Oct. 22, 1962 [Nov. 3, 1961], No. 39901/62. Heading B3D. [Also in Division G2] A lens, lap or mould for a lens surface is ground to a surface of revolution of the circoid type as defined by the formula: r<SP>2</SP>+z<SP>2</SP>=a<SP>2</SP>+ u<SP>2</SP> + v<SP>2</SP> - 2u [a<SP>2</SP> - (v cot I - z csc I)<SP>2</SP>]¢, where a, u, v, I are greater than zero, I less than 90 degrees, I is the angle of inclination between a line parallel to the work axis about which material is rotated while being shaped and a tool axis intersected by that line, u is the skewness or spacing between the work and tool axes measured along their common perpendicular, # is the distance along the tool axis from the centre of the tool circle to the common perpendicular, a is the radius of the tool circle, z is the distance along the work axis from the common perpendicular to a given plane through the lens material perpendicular to the work axis, and r is the radius of the circle cut out in the lens material in the given plane. As shown in Fig. 5, the lens blanks 23 are adhered to a workholder 24 which is rotatable about the work axis by a motor 12. The tool is a cup-shaped grinding-wheel 25 whose grinding rim is of effective radius a, and is rotated about the tool axis by a motor 21. The displacement v is set by one or both of hand wheels 16, 22, and read on scales 29, 30; the skewness u is set by hand wheel 27 and read on scale 28, and the inclination I is set by hand wheel 20 and read on scale 26. In a modification, r and z may be replaced by R and Z, where R=r-b sin #; Z=z-b dz cos #; tan # = - and 0 is the angle of inclinadr tion of the lens surface normal to the work axis for the actual surface at the point R, Z, and the grinding cup wheel has a grinding rim semitoric in shape the torus being generated by the rotation of a semi-circle of radius b in the plane containing the symmetry axis of the cup wheel about that axis and with the centre of the semicircle at a distance a from the axis and of radius b. The cup wheel may be in the form of a hollow aluminium cylinder surmounted by a toric sector covered with a thin layer of electrolytic copper impregnated with diamond dust.
Patent GB-1410449-A (GB)
Title: Roller cutter earth boring bit
IPC: E21B10/22
Filed: 1973-08-24
Abstract: 1410449 Boring earth REED TOOL CO 24 Aug 1973 40217/73 Heading E1F [Also in Division F2] Earth boring apparatus comprises a roller cutter 15 mounted on a shaft 14 carried by a support 13, a seal ring 24 encircling the shaft, and non-metallic resilient means 28 acting between the shaft and a surface 26 of the ring to bias a face 25 of the ring into sealing engagement with a surface 22 of the cutter. The surface 26 is preferably conical, as is complementary surface 23 of the shaft 14. The action of the resilient means causes end 27 of the ring, which is thinner, to expand radially outwardly, so that the ring tends to pivot about edge 29 to form a tight seal. There may be elastomeric material between the surface 22 and the face 25.
Patent GB-1009236-A (GB)
Title: A method for the production of radioactive chromium preparations
IPC: G21G1/02
Filed: 1962-10-24
Abstract: 1,009,236. Purifying radio-isotopes; producing radio-active substances. INSTITUTT FOR ATOMENERGI. Oct. 24, 1962 [Oct. 24, 1961; Feb. 27, 1962], No. 40330/62. Drawings to Specification. Headings G6P and G6R. Trivalent chromium-51 is produced by the neutron irradiation of hexavalent chromium trioxide or potassium chromate in accordance with the reaction The trivalent chromium is produced by the Szilard-Chalmers recoil effect from the target chromium-50. After irradiation, the chromium compound is dissolved and the solution is passed through an anion exchange column, containing a resin, which absorbs the hexavalent chromium and passes the trivalent chromium. The latter has a high specific radio-activity which renders it suitable for medical use as small quantities only may be employed due to its toxic properties. After evaporating the trivalent chromium solution, the pH value is adjusted, using sodium hydroxide, and the trivalent chromium is oxidized to the hexavalent form by hydrogen peroxide. In the case of the potassium chromate target, the solution is passed into a second anion exchange resin where it is adsorbed. It is reduced with ascorbic acid, desorbed and carried to an evaporator in hydrogen chloride solution.
Patent GB-1326056-A (GB)
Title: Method of making an imaging member
IPC: G03G17/10
Filed: 1970-08-21
Abstract: 1326056 Coated products XEROX CORP 21 Aug 1970 [28 Aug 1969] 40430/70 Heading B2E [Also in Division H1] Particulate material is embedded in a softenable plastic layer by coating the layer with a uniform layer of particulate material, softening the plastic layer to allow the material to sink in and repeating the coating step while the plastic layer is soft. The particulate material may be conductive, photoconductive or insulating and is preferably Se, Zno, ZnS, CdS, Cd 2 SSe, Se-Te alloys, compounds of As and Se, cadmium yellow, indigo, a quinacridone dye, an azo dye, a phthalocyanine, polyvinyl carbazole, a pyrrocoline, carbon black, garnet, iron oxide, or prussian blue. The plastic layer may be hydrogenated glycerol rosin ester or a styrene or epoxy resin and may be softened by heating or the action of liquid or vapourised solvents such as ketones, hydrocarbons and halohydrocarbons. The layer of particulate material may be provided by cascading techniques using glass beads or plastics-coated metal, or by dusting, spraying, or vapour condensation dipping in a fluidized bed. It is desirable to restrict the cascading technique to the initial coating step. The plastic layer may be formed on a support of aluminized polyethylene terephthalate, conductively coated glass or paper, a paper or plastics sheet and may be in the form of a sheet, foil or cylinder. Alternatively the layer may be self-supporting.
Patent GB-1481401-A (GB)
Title: Pyrolytic self-cleaning cooker ovens
IPC: F24C15/02
Filed: 1975-10-03
Abstract: 1481401 Self-cleaing electric ovens ETABS EUGENE SCHOLTES 3 Oct 1975 [9 Oot 1974] 40552/75 Addition to 1457579 Heading F4W [Also in Divisions E2 and H2] An electric oven as claimed in Specification 1,457,579, which has means for locking the door when the oven is being cleaned by heating to a high temperature, is modified so that each of the two actuating windings of the door-locking bolt is de-energized as soon as it has operated the bolt. Fig. 2 shows the circuit during the cleaning operation. Besides the normal heating resistors 2b, 3b, there is a resistor 5b for raising the oven to cleaning temperature and a heater 6b for heating a catalyst for destroying the fumes. All these resistors are energized through contacts of the main control switch 1b, the circuit of resistors 2b, 3b and 5b being by way of line 65 and thermostat switch 11b, which changes over when the temperature exceeds normal cooking temperatures, indicating that the cleaning operation has begun. When switch 11b changes to contact t the resistors remain energized by a circuit over line 67 through a two-way switch 13b, which is changed to contact v by the shooting of the bolt 30b. The common terminal w of switch 13b is connected by line 68 to contact j of the main control switch. In the "cleaning" position of this switch contact j is connected to the power supply terminal I at contact b. Also the winding 33b is connected over line 72 to the supply terminal II via contacts a-h, switch 40b and contacts f, o and g. The other end of this winding is connected over line 73 to contact s of switch 13b. As soon as the main switch is turned to the cleaning position the winding 33b is energized, switch 13b being at this time on contact s. This causes the bolt to be shot, changing the switch to contact v so as to de-energize winding 33b. The bolt remains shot, preventing the door being opened until the other winding 32b is energized at the end of the cleaning operation This winding is connected through contact v of switch 13b so that as soon as it has returned the bolt to the withdrawn position it is deenergized by change-over of switch 13b (Fig. 4, not shown). A locking bolt for a door swinging about its lower edge is shown in Fig. 5. The bolt, which is the cranked end of a rotating rod 50, is adapted to engage with a keeper plate 20b. The bolt is displaced to and from the locking position by opposite electromagnets 32b, 33b acting through a slotted bail 56 on the cranked end 50a of rod 50. A flat on the rod operates the switch 13b as it turns into and out of the locking position.
Patent GB-1242701-A (GB)
Title: A system for counting copies, for use with a continuous web treating machine
Inventor: STEINBERG SOLOMON
IPC: B41F33/02
Filed: 1968-08-24
Abstract: 1,242,701. Counting sheets. S. STEINBERG. 24 Aug., 1968, No. 40587/68. Headings G4D and G4H. In apparatus for measuring the number of complete copies and the number of spoilt copies made in a printing machine impulses derived from a switch 301 (Fig. 6) actuated by either a cam 302 driven by folder shaft 33 or a magnet are accumulated in counter 300 unless the .paper web for the copies breaks in which case a web break shoe 442 energizes relay 401 so that it directs the pulses to counter 400. If an operator can remove or divert faulty copies (in which case shoe 542 falls) the pulses are accumulated in a third counter 500. The totals displayed in counters 300, 400, 500 and printed on paper tape give the total production. Alternatively a counter (500A, Fig. 10, not shown) may accumulate all copies and a second counter (300A) only those passing a given point, the number of faulty copies being represented by the difference between the two counts. Counter 300 may include a preset mechanism so that the production may be stopped when a given number of copies have been produced. In some preprinting, coating or laminating operations in which it is required to measure the total web length a further counter (600, Fig. 1B) may be used. The web lengths of each of the webs 12, 12b, 12c, 12d (Fig. 1) may be measured in associated counters (50, Fig. 8, not shown) the counters deriving their impulses from for example magnetic reed switches operated by any drum or cylinder driving the web. When break shoes 142 detect a break in the web the counter is de-energized and instead of printing the count in normal black ink the sub-total up to the time of break is printed in red.
Patent GB-1508414-A (GB)
Title: Analogue-to-digital converter
IPC: H03M1/00
Filed: 1976-09-30
Abstract: 1508414 Analogue-to-digital conversion STANDARD TELEPHONES & CABLES Ltd 30 Sept 1976 40601/76 Heading H3H In an analogue-to-digital conversion an input voltage is applied to an electro-optical deflector 1 to deflect a laser beam, focused into a fan shape, over a binary coded scale 4, the light pattern reflected from (as shown) or transmitted through, Fig. 3 (not shown) the scale being focused to a spot and scanned by a sawtooth waveform fed to a second electro-optical deflector 6. Time division multiplexing of n P.C.M. optical channels is possible by gating only every nth cycle of the sawtooth generator to the deflector 6. Transitional degradation of the output may be avoided by an optical commutator (not shown) following the deflector 6 and enabled for the central portion of each effective bit period.
Patent GB-1362656-A (GB)
Title: Fluidised bed apparatus
IPC: G21C3/62
Filed: 1970-08-24
Abstract: 1362656 Fluidised bed apparatus UNITED KINGDOM ATOMIC ENERGY AUTHORITY 11 Aug 1971 [24 Aug 1970] 40701/70 Headings B1F and B2L [Also in Division F4] A fluidised bed for the pyrolitic coating of nuclear fuel particles comprises a plurality of gas inlet channels having conically divergent discharge passages 6 and nozzle receiving portions 5 the axes of which cannels are inclined away from the vertical direction and towards an adjacent channel in the circumferential direction to produce a relatively large vertical component and a relatively small lateral component to the gas jets. In one form both parts of the channel are inclined and in another form the nozzle receiving portions are inclined relative to the discharge portions. A central vertical channel or pillar may be provided. In operation coating fluid and fluidising gas are fed to each channel and the particles to be coated are rotated around the central axis of the bed as well as being held in the raised position. The bed is formed of graphite and may be constructed in one or more pieces.