baber/WOPTO huggingface dataset:
Patent GB-1406394-A (GB)
Title: Method for forming pure metal or non-metal deposits
IPC: C23C16/08
Filed: 1973-11-02
Abstract: 1406394 Chemical vapour deposition from fluorides COMMISSARIAT A L'ENERGIE ATOMIQUE 2 Nov 1973 [7 Nov 1972] 50997/73 Heading C7F Metals or non-metals are deposited by introducing in the vapour state at least one higher valency metal or non-metal fluoride into an enclosure containing a substrate, and a source of metal or non-metal to be deposited, heating said source so that it reacts with the fluoride to form a sub-fluoride of the source metal or non-metal, which sub-fluoride evaporates, condenses on the substrate, and produces fluorine and a deposit of the desired source metal or non-metal. The metal or non-metal of the higher valency fluoride and the metal or non-metal of the source may be the same or different. The higher fluoride may be WF 6 , MoF 6 , ReF 6 , PtF 6 , TaF 5 , NbF 5 , BF 4 , TiF4, CF4, or SiF4, the source may be Fe; Co, Zn, Ag, Au, Cd, Al, Cu, Ni, Zr, Ta, or W and the substrate may be W, Mo, Cu, Ni, Fe, graphite, Si, Al 2 O 3 , Cu-Ni, Cr-Ni-Fe, or glass.
Patent GB-1180519-A (GB)
Title: Method of Magnetizing Articles
Inventor: TRIKILIS EMMANUEL MITCHELL
IPC: H01F13/00
Filed: 1967-03-20
Abstract: 1,180,519. Magnetizing. E. M. TRIKILIS. 20 March, 1967, No. 51070/68. Divided out of 1,171,957. Heading H1P. Articles 2 to be magnetized are carried along by conveyer 1 through two magnetic fields produced at 4 or 5 and 6. According to the disposition of the articles in relation to the fields, the articles are magnetized by one of the fields but not the other since there is little magnetic strength in any field produced across the width of the article and so the articles are magnetized along their longitudinal axes. If the articles are lying loosely on the conveyer there is a tendency for them to be aligned by the fields. The articles may be tools or library books having a magnetizable tape attached thereto.
Patent GB-1403913-A (GB)
Title: Semiconductor device
IPC: H01L31/06
Filed: 1972-11-09
Abstract: 1403913 Semi-conductor devices OMRON TATEISI ELECTRONICS CO 9 Nov 1972 [10 Nov 1971 10 March 1972] 51836/72 Heading H1K A rectifying interface in a diode is formed between a semi-conductor body and a layer of tin oxide separated from it by a layer of insulation 15-500 Š thick. Suitable materials are silicon, germanium and gallium arsenide for the body and silica, silicon nitride and germanium oxide for the insulation layer. The embodiment is based on a monocrystalline wafer of 1 ohm. cm. N type silicon 200 Á thick. After washing in dilute hydrofluoric acid to remove or render uniform any surface oxide the wafer is heated at 520‹ C. on a quartz substrate in a flowing mixture of water vapour and an oxidizing gas, e.g. air or oxygen, typically for 5 minutes, to form a 20 Š thick silica layer, and then in a mixture of dimethyl tin and inert gas to deposit tin oxide the conductivity of which may be improved by including antimony trichloride in the mixture, to which water vapour may also be added to speed up the deposition. If a P type silicon wafer is used deposition is effected at a higher temperature or the deposit subsequently heat treated. A passivated device is provided by forming the silica in an aperture in a thicker layer on to which the tin oxide extends. Contact electrodes are deposited on the wafer and the tin oxide. The rectifying characteristics are compared with those of devices in which the silica layer is absent or not intentionally formed. The reverse breakdown voltage is higher and shows less variation between devices. In addition the device is photoresponsive and the dependence of this response on the thickness of the silica layer is discussed.
Patent GB-1132836-A (GB)
Title: Improvements in or relating to spinnerettes
IPC: D01D4/06
Filed: 1965-12-07
Abstract: 1,132,836. Spinnerettes. EASTMAN KODAK CO. 7 Dec., 1965 [8 Dec., 1964], No. 51877/65. Heading B5B. In a spinnerette assembly comprising a spinning block having a central inlet communicating with a chamber inside the block, a spinnerette plate defining a surface of the chamber, and a clamp plate securing the spinnerette plate to the block, a distributer is provided within the chamber for directing a spinning composition from the central inlet to the periphery of the spinnerette plate, so that the composition flows over the spinnerette plate from its periphery towards its centre. The chamber inside the spinning block may contain a spinnerette adapter. In one embodiment (Fig. 3), a spinnerette assembly comprises heated block 28 having internal cylindrical chamber 29 for receiving spinning adapter 30, spinnerette plate 38 and clamp plate 41. Aligned inlets 31, 32 lead into a conical hollow 51 in adapter 30, which forms, with distributer 34, an annular, progressively narrowing channel of constant cross-sectional area. In operation, molten polymer from inlets 31, 32 passes through this channel, and through orifices 35 distributed around the periphery of the flanged, conical distributer 34, to shallow chamber 36 overlying filter screen 37. The polymer, which is then extruded through orifices 39 in spinnerette plate 38, thus moves from the periphery of the spinnerette plate towards its centre, with consequent decrease in hold-up time and resultant polymer degradation. In examples, filaments are melt-spun from poly(1,4-cyclohexylene - dimethylene) terephthalate and polyethylene terephthalate.
Patent GB-1281456-A (GB)
Title: Thiapyrylium salts
Inventor: HARTMANN HORST
IPC: C07D409/08
Filed: 1970-11-02
Abstract: 1281456 Thiapyrylium salts. CHEMIEKOMBINAT BITTERFELD VEB 2 Nov 1970 52011/70 Heading C2C [Also in Division C4] Novel thiapyrylium salts of the formula in which R is hydrogen, alkyl or optionally substituted aryl or heteroaryl, R<SP>1</SP> is hydrogen, alkyl, aralkyl or optionally substituted aryl, -NR<SP>11</SP> 2  is the residue of an aliphatic, cycloaliphatic, aliphatic-aryl or heterocyclic secondary amine, A is the anion of a mono- or polybasic acid, and n is 0, 1 or 2, are prepared by reacting a #-chloro-immonium salt of the formula in which -NR<SP>111</SP> 2  is the residue of a secondary amine, with a thionamide R<SP>1</SP>-CH 2 .CS.NR<SP>11</SP> 2 , in an anhydride of a C 1-5  carboxylic acid at about the b.pt. of the anhydride and in the presence of a base and precipitating the required pyrylium salt by adding a mixture of ethylacetate and a dialkyl ether. The preparation of 2-morpholino-6-phenyl-, 2-piperidino-3-phenyl- 6 - (p - tolyl)- and 2 - morpholino - 3 - phenyl- 6-styryl-thiapyrylium perchlorate is described.
Patent GB-1086748-A (GB)
Title: A machine for producing steel mats that can be used as concrete reinforcement grids
IPC: B29C45/03
Filed: 1964-12-22
Abstract: 1,086,748. Injection moulding joints. FERROTEST G.m.b.H. Dec. 22, 1964 [Jan. 11, 1964], No. 52163/64. Heading B5A. A grid for reinforcing concrete comprises steel rods 15, 16 which are attached to one another at their points of intersection by jackets K of synthetic plastics material injection moulded in position. The embodiment shows one of a number of separate injection moulding units and comprises mould halves 31, 33, the lower half 31 being raised by a wedge 26, formed on a horizontally reciprocable bar 18, which cooperates with a roller 27, and the upper half 33 being vertically reciprocated by nozzle 40 of an injection cylinder 39 attached to a slide 37 and a return spring 35. The cylinder 39 is fed via a shoot 42, and the material is plasticized and injected by a piston 43 which may also act as a feed cut-off by co-operation with shoot 42. The rods may be held in position adjacent the mould halves by a magnetic clamp mechanism 61-56. The injection units are mounted on a beam (13), Fig. 1 (not shown), with suitable feed means (not shown) for rods 15, 16 which moves rods 15 in a step-wise manner and places rods 16 individually in position. As an alternative to individual injection units, the mould halves may be mounted on beams (63, 64), Figs. 3, 4 (not shown), which are moved together or apart by means of an hydraulic motor (66) and links (65). One or more injection cylinders may be provided either on the upper or lower beam and the feed may be effected by piston or screw impellers which are axially movable or otherwise. A further embodiment, Fig. 5 (not shown), comprises an inclined conduit (74), surrounded by a heater jacket (75), and a slide valve (76). In all cases the mould halves may be locked together, e.g. by hydraulically or pneumatically operated wedge locks, and means for fluid cooling the moulds is preferably provided.
Patent GB-1131932-A (GB)
Title: Improvements in or relating to gas ionisation detectors
Inventor: LOVELOCK JAMES EPHRIAM
IPC: H01J41/08
Filed: 1964-12-23
Abstract: 1,131,932. Ionization chambers. W. G. PYE & CO. Ltd. 17 Dec., 1965 [23 Dec., 1964], No. 52266/64. Heading HID. A gas ionization detector for detecting the nature or measuring the amount of a gaseous impurity present in a gas includes an electrode of helical, reticular or like open form surrounding but electrically insulated from an electrically conducting member carrying a source of α or # radiation. The electrode 1 is supported in a P.T.F.E. sheath 2, and is coated at its end with a tritium source 3 which is itself surrounded by a helical collecting electrode 4 supported at one end by an insulating cap 5, and connected at the other end to a portion 6 of a metal cylinder 7 covered by an insulating sheath 8. A heating element 11 is provided in the ring 6; the end 10 remote from the radiation source is formed as a coaxial socket; and a flange 9 is provided for supporting the apparatus. The radiation source may alternatively be radium, preferably gold-plated to reduce the required inter-electrode spacing.
Patent GB-1483344-A (GB)
Title: Pressure sensitive devices
IPC: G01L9/00
Filed: 1974-08-05
Abstract: 1483344 Pressure sensing MARCONI CO Ltd 5 Aug 1974 [13 Nov 1973] 52547/73 Heading GIG [Also in Division H3] A pressure sensor comprises a sending and a receiving transducer on a body of Piezo-electric acoustic-wave propagating medium, the body being deformable by the pressure to be sensed so as to vary the wave propagation time between the transducers. In the Fig. 2 embodiment a chamber in which a fluid-pressure P is to be sensed is defined by quartz crystal 10, plate 14 and peripheral seal 16. An acoustic surface wave is propagated between transducers 18, 20 which are connected in the feedback loop of an amplifier to form an oscillator whose frequency depends on the acoustic path length, hence on deformation of crystal 10. Each electrode is of inter-digitated form.
Patent GB-1158994-A (GB)
Title: Header.
IPC: H01L23/36
Filed: 1966-11-24
Abstract: 1,158,994. Semi-conductor devices. TEXAS INSTRUMENTS Inc. 24 Nov., 1966 [29 Dec., 1965], No. 52667/66. Heading H1K. The coefficient of expansion of a thermally conductive metal header for a semi-conductor device is reduced by embedding a quantity of an alloy having a lower coefficient of expansion in it. The header may be of copper and may have a grid of an iron-nickel-cobalt alloy embedded in the base portion. The semi-conductor device, which may be of silicon, is gold soldered to a molybdenum block bonded to the base portion of the header, Fig. 2 (not shown). The grid may be produced by punching an array of rectangular apertures in a sheet of the alloy, Fig. 3 (not shown), or by welding together a plurality of alloy strips, Fig. 4 (not shown).
Patent GB-1294987-A (GB)
IPC: B60T13/40
Filed: 1970-11-06
Abstract: 1294987 Valves; dual circuit brake systems WESTINGHOUSE BREMSEN UND APPARATEBAU GmbH 6 Nov 1970 [22 Nov 1969] 52848/70 Headings F2F and F2V A tractor dual-circuit braking system incorporates a relay valve 11 which serves as a trailer brake valve and acts to control the pressure in a trailer direct brake pipe 18 in response to pressure changes in the two circuits I, II of the tractor braking system. As shown in Fig. 2, the relay valve 11 has connections 36, 41 for pipes 12, 13 of the circuits I and II: connection 36 communicates via holes 37, 38 with chambers 39, 40, respectively, above a relay piston 20 and connection 41 communicates via a hole 42 with a chamber 43 below a relay piston 21. The two relay pistons 20, 21 are coaxial and include respective seats 22, 29 which co-operate with valve cones 33, 34 of a double valve body 32 to form an inlet valve 22, 33 and an outlet valve 29, 34. A pipe 14 leading to a storage tank 5 of the brake circuit II is connected to the valve 11 at a union 44 and communicates via holes 45, 46 with a chamber 47 and a pipe 15 leading to the trailer brake pipe 18 is connected to the valve 11 at a union 50 which communicates via a hole 49 with a chamber 48. When a tractor brake valve 3 is actuated compressed air flows from storage tanks 2 and 5 into brake cylinders 4, 4<SP>1</SP> associated with the front and rear axles of the tractor respectively. The pressures in the two circuits I, II being introduced into the chambers 39, 40 and 43, respectively, act to move the relay pistons 20, 21 slidably axially towards one another. As a result the outlet valve 29, 34 closes and the inlet valve 22, 33 opens and the storage tank 5 is thereby connected to the line 18 via a line 6, a pressure control valve 7, a line 14 and chambers 47, 48 of the valve 11. The inlet valve 22, 33 opens until the forces acting on the relay pistons 20, 21 are in equilibrium whereupon the double valve 22, 33 and 29, 34 comes into the lap position. If one of the brake circuits is not pressurized the pressure in the other circuit will still cause the valve 11 to operate. A pipe 10 serves as an automatic trailer brake pipe which when broken causes the trailer to be braked and if this occurs while the tractor brake is actuated the outlet valve 29, 34 remains closed and the inlet valve 22, 33 remains open to evacuate the pipe 18 via the inlet valve 22, 23 and the pipe 14. In the relay valve 11 of Fig. 3 a relay piston 54 is in two sections 60, 61 and an advance is achieved in the trailer brake as compared with the towing vehicle brake. A compression spring 62 acts on the piston section 61 and the initial compression of the spring 62 may be altered by means of an adjusting screw 65. An inlet valve 56, 68 and an outlet valve 66, 69 are provided which are respectively opened and closed in actuation of the valve 11 by the pressure in either or both circuits I, II. The arrangement is such that a steep pressure rise occurs in a chamber 80 to bring about the aforesaid advance.
Patent GB-1491454-A (GB)
Title: Contact members for contacting liquids and gases
IPC: F28F25/08
Filed: 1974-12-06
Abstract: 1491454 Cooling towers SVENSKA FLAKT. FABRIKEN AB 6 Dec 1974 [20 Dec 1973] 52848/74 Heading F4K [Also in Division B1] A contact plate for a gas/liquid contact apparatus having a vertically extending body through which gas and liquid pass, which is substantially symmetrical about a vertical longitudinal axis, e.g. a humidifier or cooling tower, comprises over at least a part of its surface a field consisting of parallel folds, undulations or corrugations 2, each having an amplitude (h) of 1 to 5 mm., a wavelength (#) of below 12 mm. and which extend in a direction which is inclined at an angle (#) between 65 and 88 degrees to the vertical longitudinal axis of the apparatus over at least part of the surface of the plate. Preferably there are pluralities of fields parallel to each other, adjacent fields being oppositely inclined to the vertical axis. The plates 1 are preferably stacked vertically in arrays with distance members 5, 6. The plates may be of metal, compressed cardboard or P.V.C.
Patent GB-1249988-A (GB)
Title: Improvements in or relating to gas-operated appliances
Inventor: JENIONS GORDON WILLIAM
IPC: F23N5/10
Filed: 1967-11-22
Abstract: 1,249,988. Controlling burners. UNITED GAS INDUSTRIES Ltd. 21 Nov., 1968 [22 Nov., 1967], No. 53198/67. Heading F4T. In a valve device for a gas-heated appliance, comprising a main shut-off gas valve 1 for controlling the supply of gas through passages 9 and 11 to the appliance and adapted to be controlled by a flame-sensor 5, e.g. a thermocouple, which de-energizes the valve when the flame being sensed fails, a first overriding control 2 is operable to open the valve in the absence of flame and a second overriding control 35 is operable to close the valve in the presence of flame. To allow ignition of the gas at a burner of the appliance, control 2 is pushed leftwards, Fig. 2, to free valve plunger 13, which is biased by compression spring 23, from valve seat 12. Gas can then flow to the burner to be ignited. The plunger ] 3 is fixed to one end of an electromagnet core 14. The electromagnet at its other end carries a contact pad 7. When the sensor 5 detects a flame it energizes the electromagnet via the now-touching contact pads 6 and 7 to hold the plunger in its open position. Thus, when flame is established, the control 2 may be released. In the event of flame failure the electromagnet becomes de-energized and spring 23 urges the plunger into its closed position to cut off the gas supply. To turn off the appliance, control 35 is moved leftwards to pivot lever 32 about point 30. This lever has an aperture through which cable 4 passes, the cable having rigidly attached thereto a collar 34. Pivoting of the lever consequently causes leftward movement of the cable and the electromagnet is thereby de-energized. The plunger 13 is thus urged into its closed position by spring 23, which is strong enough to prevent subsequent leftward movement of the plunger under the action of the electromagnet alone. In a further embodiment (Fig. 3, not shown), the mechanical control 35 is replaced by an electrical control (49). The contact pads 6 and 7 are separated by two conducting plates (44, 45) sandwiching an insulating pad (46). Electrical contact between the plates is achieved by closing a switch (49). To shut off the appliance, the switch is opened, thereby de-energizing the electromagnet and allowing the plunger to take up its closed position. The return motion of the switch may be damped to prevent inadvertent re-lighting.
Patent GB-1516230-A (GB)
Title: Machine for continuous bias cutting of tubular fabric
IPC: B26D1/22
Filed: 1976-12-22
Abstract: 1516230 Finishing fabrics HANES CORP 22 Dec 1976 [29 Dec 1975] 53594/76 Heading D1S [Also in Division B4]  A machine for continuously cutting strips from an advancing tube of material e.g. fabric while maintaining the material under selected uniform tension comprises a supply 11 of tubular material 14, a plurality of cutters 60 for cutting the material into strips, means 75 for winding the strips into inidividual rolls 15, at least two skeyable rotatable cylinders 26, 29, 34 for supporting and advancing the material to the cutters and adjustment means for skewing the cylinders selectively to cause the tube of material to advance to the cutters at selected rates of speed. The cylinders 26, 29, 34 are rotatably between plates 22, 23, the plate 22 being rotatable on a stationary shaft 19 by means of a hand controlled gear drive 51-54, Fig. 3 in order to skew the cylinders. The cylinders 26, 29 are completely covered with a friction surface 27 whereas the cylinder 34 is only partly covered in order to leave a metal surface against which the cutters 60 operate. The tube of material is fed onto the cylinders via a spreader 12 which includes a number of ribs 114b connected plates 117, 118 via further ribs 114a, 114c and hinge joints 123, 124. The ribs 114b are urged radially outwardly by springs 139 so as to maintain tension on the tube material; the tension of the springs is varied by a handle 133. The tubular material is supplied from a tray 89 which is rotated by a motor 44 via a variable speed drive, Fig. 8 (not shown).
Patent GB-1276020-A (GB)
Title: Electrical connector
Inventor: OLSON ANDREW HUGH
IPC: H01R25/14
Filed: 1969-11-04
Abstract: 1276020 Two-part couplings COURTNEY, PIPE (ELECTRICAL) Ltd 4 Nov 1969 53995/69 Addition to 1172149 Heading H2E A connector 1 for attachment at any point along an anodized aluminium track 2 has a housing 20 with a cover 34 which is hinged at 35 and which has a dependent projection 42 to push strip contacts 36, 37 of the connector outwardly and into contact with conductors 17, 18 within the track 2 when the cover 34 is closed. The connector is mechanically attached to the track by means of a U-shaped metal clamp 21 which also forms an earth contact and has outwardly turned jaws 22, (23) (Fig. 3, not shown) at the free ends of its legs 24, (25). The legs are moved outwardly by screws 28, (29) attached to knobs 30, (31) so that the jaws 22, (23) grip flanges 11, 12 of the track 2. The track may be attached to a ceiling by its upper portion 3 and the conductors 17, 18 are gripped within an insulating plastics strip 6 having a polarizing rib 19 which co-operates with a raised portion 43 on the projection 42. A raised portion 48 on an end-wall extension 47 of the housing also cooperates with the rib 19 to polarize the connector and track. Alternatively, the earth connection may be made by an additional contact and terminal in the housing 20 and an earth strip in the plastics strip 6, adjacent the rib 19.
Patent GB-1192120-A (GB)
Title: Pilot Operated Valve for a Reversible Fluid Motor
IPC: F15B13/04
Filed: 1968-11-14
Abstract: 1,192,120. Valves. KOEHRING CO. 14 Nov., 1968 [27 March, 1968], No. 54154/68. Heading F2V. Fluid flow control means for a reversible motor 5 wherein a pilot valve 22 effects shifting of a main valve 14 against means 37 biasing the main valve to a hold position is characterised by an actuator 20, 21 controlled by fluid pressure adjusted by the pilot valve to shift the main valve 14 to working position so that a drop in pressure at one motor port will similarly result in a drop in pressure applied to the actuator, means providing a passageway 55 through which the actuator can be relieved of fluid pressure to permit the biasing means to impart return movement to the main valve element in consequence of load induced reduction in pressure, and said passageway being restricted to have a dashpot effect on the main valve by which its return motion is damped. A pump P is connected to the inlet 11 of the main valve and to the inlet 40 of the pilot valve through a passage 53 extending through a valve 50 which opens whenever the pilot valve is in a neutral position and connects the interior of the valve 50 with the reservoir 18. Movement of the pilot valve from its central position supplies fluid under pressure to one of the actuators 20, 21, and closes a space 41 to apply back pressure to the interior of the valve 50. The other actuator is simultaneously connected with a reservoir and the main valve is moved from its hold or central position, in which flow from the pump is returned to the reservoir through a restricted passage 36, to a position in which fluid is supplied to one of the parts 8 or 9 of the motor 5, the other port being connected through a passage 32 in the main valve to the reservoir. If the load begins to drive the motor, pressure rises in the passage 32 and falls in the inlet 11 to open the valve 50. Pressure also falls in the actuator to permit the biasing means 37 to return the main valve 14 towards its hold position and to throttle the flow from the motor into the passage 32. The return movement is restricted by the rate at which fluid from the actuator can escape through the passage 55 which may be replaced by a spring-loaded ball valve between the actuator and the space 25 or 26 or by an adjustable needle valve communicating with a passage 46 in the pilot valve.