baber/WOPTO huggingface dataset:
Patent GB-1140181-A (GB)
Title: Pressure control mechanism for an aircraft air-conditioning system
IPC: B64D13/00
Filed: 1967-06-05
Abstract: 1,140,181. Compressors. UNITED AIRCRAFT CORP. June 5, 1967 [June 6, 1966], No. 25782/67. Heading F1C. An air-conditioning system is supplied from the compressor 1, Fig. 1, of an aircraft gas turbine engine via a duct 2 containing a control valve 8. If the pressure downstream of the valve 8 exceeds, say, 135 lb./sq. inch., it acts via a line 17 to move a diaphragm 16 against the action of a spring 18 to open a valve 21 which vents a servo-pressure supply line 54 to atmosphere. The resultant decrease in servo-pressure causes the actuator 10 of the valve 8 to move the valve 8 towards the closed position to reduce the downstream pressure. If the diaphragm 16 breaks or is punctured, the valve 21 will not be opened when the downstream pressure exceeds 135 lb. /sq inch. However, if the downstream pressure reaches 170 lb. /sq. inch, the pressure acts via lines 17, 36, 40 to move a diaphragm 24 against the action of a spring 26 to open an emergency valve 28 to vent the servo-pressure line 54 to atmosphere, thereby preventing further rise of the downstream pressure. In addition, a cam 56 attached to the diaphragm 24 opens a valve 42 to admit the pressure upstream of the control valve 8 via a line 39 to the space 34 above the diaphragm 24. Consequently, the diaphragm 24 is acted on by the upstream pressure instead of the downstream pressure and the valve 28 therefore remains open until the upstream pressure falls below 170 lb. /sq. inch. An orifice 43 restricts the flow from the space 34 to the line 17 when the valve 42 is open. Orifices 45, 46 and plenum chamber 44 reduce the possibility of the emergency valves 28, 42, being operated by rapid changes of upstream pressure. The loss of air-conditioning occurring while the valve 28 remains open warns the pilot of a failure of the primary control 16, 21. He can restore the air-conditioning by reducing the engine speed so as to reduce the upstream pressure. In a modification, Fig, 2, the diaphragm 24 operates a valve 57 to connect the line 39 to the space 34.
Patent GB-162258-A (GB)
Title: Safety driving connection for power driven machines
IPC: G06C23/06
Filed: 1920-09-07
Abstract: 162,258. Federal Adding Machine Corporation, (Assignees of La Fetra, C. W.). April 20, 1920, [Convention date]. Clutches.-A driving connection, shown applied between an electric motor and a shaft in a calculating-machine, comprises a displaceable yieldable member or lever co-operating with a cam to transmit the drive and so arranged as to operate an electric switch when displaced by the stalling of the driven mechanism. The worm 9, Fig. 3, on the motor shaft engages a wheel 10, which is loosely mounted on the driven shaft 6 and carries a. pair of spring-connected levers 28 having projections 28<1> bearing on faces on a cam 27 on the driven shaft. If the driven shaft is arrested, the motor continues to run and the projections 28<1> ride over the stationary camfaces, causing the levers 28 to move outwards against the action of the springs until one or other of their outer faces engages a pin 31 in the gear casing and presses it out to open a switch in the motor circuit. This is done through a lever 32, Fig. 5, one end of which bears on the pin 31 and the other engages in a recess in the rod 34 which is connected by a sliding plate 36 to the plunger of the switch 35. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also the use of the driving connection with a continuously-running motor, not necessarily an electric motor, for permitting the motor to run freely when the mechanism becomes blocked. This subjectmatter does not appear in the Specification as accepted.
Patent GB-382377-A (GB)
Title: Improvements in or relating to the operation of sliding windows
IPC: E05F11/38
Filed: 1931-09-15
Abstract: 382,377. Window regulators. BRIGHT, R., Homefield, Broad Lane, Coventry. Sept. 15, 1931, No. 25802. [Class 20 (iii).] Relates to sliding windows for vehicles of the kind in which a pivoted lever is rotated by an operating handle to raise or lower the sash, and in which a coil spring normally locks the sash against movement but releases it when the operating handle is moved in either direction. According to the invention, the coil spring 27 and the pivot of the sash-lifting lever 5 are coaxially arranged with respect to the spindle 12 of the operating handle 30. The free end of the lever slidingly engages in a channel secured to the lower edge of the sash. The spring 27 is arranged around the grooved periphery of a disc 28 secured to the spindle 12, and frictionally engages with a housing 15 which is secured to or formed integral with the garnish rail of the window frame. The lever 5 is loose on the spindle 12 and has an extension 5a which projects between the ends 27a of the spring 27. Normally; the weight of the window causes the extension 5a to bear against one end of the spring thus forcing the two ends apart and expanding the spring into frictional contact with the housing 15. Upon moving the operating handle, and hence the disc 28, in either direction the effect produced is to move the ends 27a towards each other thus contracting the spring and releasing it from its frictional engagement with the housing 15. Further movement of the handle 30 operates the window. The Provisional Specification describes also a modification in which the operating spindle is made in two parts carrying respectively the lever and operating handle. A serrated flange carried by one part of the spindle normally engages with a serrated face of the housing and thereby prevents operation of the window. The operating handle is pivoted to the spindle and has a short arm engaging with a plate connected to the housing. By exerting an outward pull on the handle, the serrated faces are disengaged and the window can be operated. The counterbalancing spring may be replaced by a rubber bush which is inserted, under pressure, between the housing and the operating spindle.
Patent GB-1237432-A (GB)
Title: Process for preparing heat resisting polyimides
IPC: C08G73/10
Filed: 1968-05-29
Abstract: 1,237,432. Electrically insulating polyimide coating. TORAY INDUSTRIES Inc. 29 May, 1968 [29 May, 1967; 21 Oct., 1967; 26 Oct., 1967], No. 25849/68. Heading B2E. [Also in Division C3] Heat-resisting polyimides are prepared by heating at above 200‹C a mixture having an inherent viscosity (0.5g/100ml in dimethyl formamide at 30‹C) of 0.05 to 0.65 and comprising a mixture of two polyamide acids one having predominantly carboxy ends derived by reaction of an excess of an aromatic tetracarboxy compound with an aromatic diamine and the other having predominantly amine ends derived from similar aromatic reactants with the diamine in excess, the overall ratio of amino to carboxy ends in the mixture being 0.9 to 1.25. In a modification 5 to 60 ml% of the diamine is replaced by an aromatic triamine or tetramine having at least one other pair of NH 2  groups. Extensive lists of reactants and solvents are given; there are also 30 specific Examples. Fillers e.g. glass, asbestos, cellulose, polyacrylonitrile or chlorinated polyethylene fibres may be incorporated in the mixture before heating. The composition may be used to provide an insulating coating on electric cables, as an adhesive e.g. for laminates and to form films. Exs 22 and 30 describe the application of 8 and 5 coats respectively to copper wire.
Patent GB-518928-A (GB)
Title: Improvements in and relating to the manufacture and production of carpets
IPC: D03D27/00
Filed: 1938-09-06
Abstract: 518,928. Pile fabrics. COURTAULDS, Ltd., and RHODES, C. Sept. 6, 1938, No. 26011. [Class 142 (iv)] The pile of a pile fabric is made from tow of continuous filaments of artificial silk &c. either untwisted or only slightly twisted.
Patent GB-595075-A (GB)
Title: Improvements in direction finders
IPC: G01S3/08
Filed: 1944-12-28
Abstract: 595,075. Radio direction - finding. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 28, 1944, No. 26045. Convention date, Feb. 26, 1942. [Class 40 (v)] Relates to direction finders including means for deriving from a received signal two voltages having amplitudes proportional respectively to the sine and cosine of the bearing angle # of the incoming signal. According to the invention a local oscillator is provided which operates at a frequency different from the incoming signal and which is connected to an auxiliary directive aerial and means are provided for deriving two voltages of the local oscillator frequency having amplitudes proportional respectively to the sine and cosine of the angle # between the reference axis of the direction finder and the directive axis of the auxiliary aerial, the sine and cosine components of the signal and local voltages being then separately heterodyned together and combined to give a resultant beat frequency which has zero amplitude when #=#90 degrees. Fig. 1 shows a shielded U-type Adcock system in which the incoming signals received by the opposed aerials 1, 3 and 2, 4 are combined in opposition and applied to detectors 5 and 6, the outputs from which are combined in parallel and fed through an amplifier 7 to an indicating meter 8. A local oscillator 9 differing in frequency from the incoming signal is coupled to a rotatable loop aerial 10 located at the centre of the Adcock system so that the aerials 1-4 receive additional local signals of constant phase, but with an amplitude depending upon the orientation of the loop 10. The local and incoming signals beat together in the detectors 5 and 6 to give a beat frequency which may be audio or higher, e.g. in the I.F. band, and it is shown that the amplitude of the resultant beat-frequency output from the amplifier 7 varies sinusoidally as the loop is rotated. The position for zero output is determined by the relationship #=#90 degrees, where # is the direction of the incoming signal with respect to the axis A1-A3, Fig. 4, and # is the angle between the plane of the loop and the same axis ; thus, observation of the angle # on the scale 11 enables the bearing to be determined. The Adcock system may be replaced by crossed loops, Fig. 5 (not shown), and the rotatable loop may be replaced by a small rotatable Adcock system, Fig. 6 (not shown).
Patent GB-298945-A (GB)
Title: Improvements in coke ovens
IPC: C10B29/08
Filed: 1928-09-11
Abstract: 298,945. Koppers Coke Oven Co., Ltd., (Assignees of Koppers Akt.-Ges., H.). Oct. 17, 1927, [Convention date]. Coke ovens.-In coke ovens having passages in their foundations the ferro-concrete flooring is divided up into slabs with expansion joints between them and their slabs rest by means of iron shoes on the pillars and struts which support them. Insulating means may be provided for preventing the transmission of heat to the struts and pillars.
Patent GB-982146-A (GB)
Title: Apparatus for controlling the instantaneous angular position of the rotor of an electric motor
IPC: H02P27/04
Filed: 1961-07-19
Abstract: 982,146. Automatic speed control. FERNSEH G.m.b.H. July 19, 1961 [July 20, 1960, No. 26138/61., Heading G3R. In apparatus for controlling the instantaneous angular position of the rotor of an electric motor, a first series of pulses representative of the motor speed are compared with a reference series of pulses in a phase discriminator producing a control voltage, and this control voltage together with its differential with respect to time is fed to means for adjusting the angular position of the rotor. As shown, apparatus for recording video signals on magnetic tape comprises a motor 10 driving a transducer head assembly 80. Signals proportional to the speed of motor 10 are derived from a photo-cell 30 illuminated by light reflected from a black-and-white patterned disc 20, and are fed to a phase comparison circuit 50 where they are compared with synchronizing pulses 40 to develop a control signal which is applied to a circuit 60 providing an output signal including a component proportional to its differential with respect to time. These combined components are applied to vary the frequency of a generator 70 supplying the motor 10. Several arrangements suitable for the circuit 60 are described (Figs. 4a to 8, not shown). The output signal from circuit 60 may control an eddy-current brake associated with the motor 10. When the apparatus is used in connection with the reproduction of signals from a magnetic tape (Figs. 10 and 11, not shown), the phase discriminator 50 is fed with the horizontal synchronizing pulses contained in the signal reproduced from said tape and with pulses produced by a synchronizing generator.
Patent GB-1509601-A (GB)
Title: Exercising device
IPC: A63B21/018
Filed: 1975-06-19
Abstract: 1509601 Exercising devices M E DELUTY 19 June 1975 [21 June 1974] 26186/75 Heading A6M An exercising device comprises a cord or strap 12 wound on a spring biased reel 26 arranged so that the cord may be unwound from the reel against the frictional resistance of a friction nip comprising a spring biased jamming arm 30 against which the cord is pressed by a support member 28, whose pressure upon the cord 12 is adjustable by an operator through turning a control knob 46 and is indicated to the operator by an arrow 52 on a dial 56. A capstan 58, around which the cord is wound, may either be free to rotate, may be rotatable in one direction only by use of a clutch or ratchet mechanism or may be selectively locked in a stationary position by operation of a locking lever 68 dropping a pin into a locking recess 66 thereby further increasing the frictional resistance to unwinding of the cord 12. The device is mounted in a housing 22 which incorporates stanchions 16 for attachment of a cord or strap to a bar for use in a pulling exercise.
Patent GB-1269152-A (GB)
Title: A lance for cleaning difficulty accessible tanks
IPC: B05B15/656
Filed: 1969-05-22
Abstract: 1,269,152. Rigid pipe section supported hose. BRITISH PETROLEUM CO. Ltd. 22 May, 1969 [22 June, 1968], No. 26199/69. Heading F2P. [Also in Division A4] A lance for cleaning difficultly accessible tanks comprises a nozzle 8 attached to a flexible hose 1 guided in rigid pipe sections 2, 3, 4, 5 which encase it and are movable on it, these sections being adapted to be joined rigidly together. The connections may be by plug-in unions, or by threaded sleeves. The first rigid section 2 may be connected to nozzle 8, which preferably has a smooth internal surface to prevent atomization.
Patent GB-229979-A (GB)
Title: Improvements in and relating to incubators
IPC: A01K41/02
Filed: 1924-11-03
Abstract: 229,979. Chambers, C. D. Nov. 3, 1924. Hatching-appliances.-An incubator comprises a casing 1 mounted on legs 2 and lined with an insulating material. A lid 5, also lined, is hinged to the top of the casing and a door is provided in the side for the introduction or the removal of a vessel 9 containing water. A tank 16, with an opening through the centre, is fitted on a shelf extending round the upper part of the casing and is wrapped in a covering of heat insulating material. A filling cap 17 and a drain cock are provided, and the tank may be arranged in a hot water system. A sack 23 filled with feathers or loose insulating material is positioned within the wrapped tank. The eggs are supported on an open-work diaphragm 14 carried at the lower edge of a skirt 12 depending from the shelf. Eyes 13 on the skirt support a curtain 15 of flexible material which may be detached to permit air to rise and cool the eggs. A screened ventilating opening 11 is arranged in the side of the casing. In a modification, the tank is formed by water pipes which may be connected to a hot water heating system. In a further modification the tank is replaced by a number of separate water-holding units of metal or glass.
Patent GB-1397581-A (GB)
Title: Apparatus for manufacturing cellular material
IPC: B31F1/07
Filed: 1972-06-07
Abstract: 1397581 Laminating apparatus SEALED AIR CORP 7 June 1972 [8 June 1971] 26437/72 Heading B5N [Also in Division B6] An apparatus for manufacturing laminated cellular material comprises an embossing roller 32, means for feeding a first sheet 22 therearound, heating means 21 which can be moved to and from a position in which said sheet is heated at least in part whilst on said roller, a pressure roller 38 and means to feed a second sheet 33 between said embossing and pressure rollers in contact with said first sheet. As shown in Fig. 1 sheet 22 is coated with adhesive from a trough 28 between rollers 26, 27 and is passed over a drum 30 to the roller 32 before being united with the second sheet. The heater 21 facilitates embossing and is movable along a beam 20. The temperature of the drum 30 and the roller 32 may be controlled by circulating fluid therethrough and vacuum may be applied to the roller 32. In a modification (Fig. 3, not shown) the first sheet is precoated with adhesive and is fed around a large embossing roller which is substantially surrounded along its length by a cylindrical heater movable on a track. Either sheet may be coated with adhesive or barrier or adhesion primer coatings. In Fig. 4, a first sheet 77 is coated with a barrier or primer between rollers 81, 82 and with an adhesive between rollers 88, 89 and a second sheet is coated with a barrier or adhesive between rollers 93, 94. The coatings are dried or activated by passing the sheets over temperature-controlled drums 61, 62, 63 having associated therewith heaters 64, 65, 66 movable on tracks. The efficiency of heating may be improved by a reflector, as at 104. The first sheet is embossed by a roller 73, which with a second embossing roller 73<SP>1</SP> is carried on a pivotable arm 74 to facilitate changing of the embossing roller if necessary. The mechanism for effecting such change is described (Figs. 6-11, not shown) and is claimed in Specification 1,397,582. The sheets are laminated by a pressure roller 100. The embossed sheet may be plastics and the second sheet may be plastics, foil, coated paper or metallized plastics and may be printed with inks. The adhesive may be curable or crosslinkable by heat or may be re-activatable, the latter being necessary if the sheets are precoated. Examples of suitable plastics sheet materials and adhesives are given. Specification 1,096,998 is referred to.
Patent GB-784461-A (GB)
Title: Improvements in or relating to fuel injection apparatus for internal combustion engines
IPC: F02D1/00
Filed: 1955-09-15
Abstract: 784,461. Regulating. REGIE NATIONALE DES USINES RENAULT. Sept. 15, 1955 [Oct. 15, 1954], No. 26460/55. Addition to 758,606. Class 7(6) A fuel injection pump control rod 9 is controlled by a spring-loaded diaphragm 1 subjected to intake pipe suction in the chamber 2a and atmospheric pressure in the chamber 3a, the diaphragm having a central part 4 which is in operation under all conditions and an outer part 14 which remains ineffective until the suction drops below a predetermined value. The central part of the diaphragm is clamped between plates 4, 5, and is loaded by a strong spring 8 whilst the outer part is clamped between annular rings 10. 14, loaded by three light springs 12 and provided with a flange 16 adapted to abut against the casing 2. When the suction is above a predetermined value the differential pressure holds the outer part of the diaphragm stationary with the flange 12 abutted against the casing 2, the member 9 being controlled solely by the central part 4 moving against its loading spring 8. When the suction drops below the predetermined value the outer part of the diaphragm moves away from the wall 2 and the force of the springs 12 is added to that of the spring 8. causing the fuel-air ratio to be enriched at high power. The chamber 2a may be connected to atinosphere by a three-way tap 15 to enrich the mixture for starting. In a modification the control rod 9 passes through a chamber 2a and a sealed aperture in the wall 2 and controls a pump similar to that described in Specification 782,231 [Group XXVI].
Patent GB-511400-A (GB)
Title: A closure device for spray-bottles and similar containers or vessels
IPC: B65D47/26
Filed: 1938-09-12
Abstract: 511,400. Closures for bottles &c. HOPF, A. Sept. 12; 1938, No. 26525. Convention date, Aug. 5. [Class 125 (iii)] The outlet s is closed by a cap b pivoted at b2 and having housed therein a bowed leaf spring f which presses sealing material k on to the curved surface of the bottle mouth. As shown in Fig. 4 the leaf spring is flat before attachment of the cap to the bottle,. the attachment being by means of lugs on the cap which snap into recesses in the bottle neck. The curvature of the bottle mouth may be such that when the cap is moved away from the outlet s the leaf spring straightens out.
Patent GB-810809-A (GB)
Title: Improvements in the manufacture of sheet materials
IPC: B28B19/00
Filed: 1955-09-16
Abstract: 810,809. Moulding cement mixtures. VICKERS, D. R. Dec. 14, 1956 [Sept. 16, 1955], No. 26566/55. Class 87(2). [Also in Group X] Sheet material is formed by applying layers 3, 5, 7 of cement mixture alternating with layers 4, 6 of woven textile reinforcing material, e.g. hessian, to a flexible former 1, e.g. of rubber or synthetic resin, and removing the former from the assembly when the cement mixture has set. A honeycomb of cellular material such as that described in Specification 628,180 [Group VIII] may be provided with a covering layer of sheet material on one or both sides by placing it against the layer or layers 7 of an assembly or two assemblies before the cement mixture has set. The cement mixture may contain Portland or other cement, sand or other filler, natural rubber latex or artificial latex, e.g. of polyvinyl acetate and casein. The flexible former 1 may be smooth, rough, or patterned.
Patent GB-482518-A (GB)
Title: Improvements in or relating to electrolytic condensers
IPC: H01G9/12
Filed: 1936-09-30
Abstract: 482,518. Electrolytic condensers. DUBILIER CONDENSER CO. (1925), Ltd. Sept. 30, 1936, No. 26569. Convention date, Oct. 2, 1935. [Class 37] [Also in Group XVII] To vent the container of an electrolytic condenser, a diaphragm E of rubber &c. is clamped at its edges so that it is free to move with respect to them and it is within and spaced from a domed perforated cover D, a portion E<2> of the diaphragm being of reduced thickness and provided with a puncture E<1> so that on distension under internal pressure the gases &c. may escape. The Specification as open to inspection under Sect. 91 comprises also diaphragms of uniform thickness and diaphragms with other perforations in addition to the central one shown. This subject-matter does not appear in the Specification as accepted.
Patent GB-1256329-A (GB)
Title: An improved packing apparatus for shops
IPC: B65B9/093
Filed: 1970-06-02
Abstract: 1,256,329. Packing bought goods in shops. DOHMEIER & STROTHOTTE K.G. 2 June, 1970 [6 June, 1969], No. 26592/70. Heading  B8C. Apparatus for packing goods in bags 25 is housed in the packing counter 2 of a cash desk  and comprises a pair of opposed belts 16, 17 which pulls a chain of interconnected bags from a storage roll 12, a filling device 18 which has an access aperture in the counter 2 and which opens a bag for filling, and a pair of opposed belts 20, 21 which feeds the filled bag past a welding assembly 22 to a discharge container 11. The chain of bags may be formed by a longitudinally folded web 10 having spaced transverse welds (36, 37) (Fig. 4, not shown) which form a series of bag portions separated by perforations (37), each bag portion having a handle (26, Fig. 3, not shown) formed therein. The counter 2 contains a plurality of storage rails 7, 8, 9 which feed webs to respective apertures 3, 4, 5 in the counter 2. The operation of the apparatus may be controlled by operation of a cash till 1 in the counter, and by flaps actuated at the access apertures 3, 4, 5 and operative to detect goods placed thereon.