baber/WOPTO huggingface dataset:
Patent GB-1511139-A (GB)
Title: Liquid/gas suspension systems
IPC: B60G13/14
Filed: 1974-06-06
Abstract: 1511139 Making up leakage loss in suspension units DUNLOP Ltd 22 May 1975 [6 June 1974] 25165/74 Heading F2S In a hydropneumatic vehicle suspension unit, oscillations of the main piston 17 in the working cylinder 18 cause reciprocation of a pump plunger 28 in a pump cylinder 23 to pump liquid from a reservoir 27 and, if necessary, past a valve 25 into the working cylinder. The pump makes good the leakage losses from the working cylinder into the reservoir. The pump plunger 28 is actuated by a cam 35 and cam follower 34. Liquid in the reservoir 27 is maintained above the level of the pump plunger 28. Liquid is drawn into the pump cylinder via a groove 43. The pump delivers a reference pressure to a chamber 24. If the pressure difference between this reference pressure and the pressure in the working cylinder 18 is sufficient to overcome the bias on valve 25, liquid flows along conduit 21 to top up the working cylinder. If, on the other hand, because of increased temperature, the pressure in the working cylinder becomes too high liquid may flow out whenever the valve 25 is held off its seat by a stem 40 on the pump plunger.
Patent GB-793815-A (GB)
Title: Improvements in combination locks
IPC: E05B37/02
Filed: 1955-09-02
Abstract: 793,815. Permutation locks. RILEY, H. Sept. 3, 1956 [Sept. 2, 1955], No. 25217/55. Class 44 A permutation lock comprises a casing A<SP>1</SP>, a sliding bolt 14 guided by pins 15a, 15b on the casing and slotted at 14c to receive an actuating cam 4, a pair of notched wheels 7, 11. mounted to rotate with a pair of calibrated discs 6, 9, and a pivoted lever 13 which engages slots 7a, 11a in the notched wheels thereby permitting a second lever 21 to disengage a catch B<SP>1</SP>, operation of the sliding bolt being prevented when the slots are out of register. As described, the lock is suitable for a briefcase, the catch B<SP>1</SP> being mounted on the flap thereof and engaging a hole a in the face 1 of the lock A<SP>1</SP>. Rotation of the discs, 6, 9 aligns the slots 7a, 11a which may then be engaged by a projection 12 on the lever 13 one end of which is pivoted to an arm 16 which in turn is pivoted at one end to the case at 16a and at the other end to a link 17. A projection 17a on this link engages either end of a slot 17b. With the slots 7a, 11a aligned, rotation of the handle 3 can rotate the cam 4 to displace the bolt 14 downwardly since projection 14f on the bolt presses lever 13 downwards, the projection 12 entering the aligned slots, and the end 14d of the bolt disengages the lever 21 from the catch B<SP>1</SP>. The locking mechanism may be disabled by moving the projection 17a to the outer end of the slot 17b when the lever 13 will no longer engage the bolt at 14f. The discs 6, 9 may co-operate with two or more datums A, B, the notched wheels then having twice or other multiple of notches as there are calibrations on each disc. In another embodiment, the lever 21 is modified to engage a longitudinal slot in the catch B<SP>1</SP>, and the cam 4 is differently shaped, Fig. 10 (not shown).
Patent GB-220498-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J19/66
Filed: 1923-10-10
Abstract: 220,498. Edison Swan Electric Co., Ltd., and Black, T. C. Oct. 10, 1923. Vacuum tubes.-A valve of the plug-in type is arranged so that the filaments cannot be connected even momentarily across the fixed high-tension terminals. For this purpose the filament terminals 1, 2 are of different length, and both are shorter than the anode and grid terminals 3, 4.
Patent GB-870266-A (GB)
Title: Multistage high altitude engine with single combustion stack
Inventor: RAE RANDOLPH SAMUEL
IPC: F02K9/00
Filed: 1957-08-09
Abstract: 870,266. Generating combustion products under pressure. GARRETT CORPORATION. Aug. 9, 1957, No. 25285/57. Class 51 (1). [Also in Group XXVI] A multistage turbine is supplied with heated hydrogen gas as a working fluid. The exhaust hydrogen from the final stage is burnt, with an oxidant, in one side of a heat-exchanger to heat the supply hydrogen to the turbine. The three turbine stages 31, 33, 37 are connected through heat-exchangers 22, 27 and are supplied with hydrogen from tank 12 through the heat-exchanger 17. The latter is heated by exhaust hydrogen from the stage 37, burnt in combustion chamber 39 with liquid oxygen from tank 41. After leaving 17 the hydrogen is cooled in heat-exchangers 22, 27 before entry to the turbine first stage 31. 22 and 27 heat the hydrogen before entry to the succeeding stages 33, 37. In the case of an aircraft engine, the combustion chamber 39 may be supplied with either oxygen or air. In addition, unburnt hydrogen leaving the heatexchanger is burnt in an after-burner in the propulsion unit nozzle. Specification 870,271 is referred to.
Patent GB-1022876-A (GB)
Title: Hydrocarbon fuel compositions
IPC: C10L1/18
Filed: 1964-06-18
Abstract: Normally liquid hydrocarbon fuels of inproved resistance to deterioration due to microorganisms comprise a petroleum middle distillate fuel and a minor amount (e.g. 1-500 p.p.m.) of a beta-aliphaticoxy-substituted aldehyde of formula <FORM:1022876/C4-C5/1> where R and R DEG  each represent a hydrogen atom or C1- 4 alkyl group, R1 represents C1- 10 alkyl or alkenyl group, provided that when R1 is alkenyl the carbon atom bonded to the oxygen atom is not involved in the olefinic linkage. Several such aldehydes are specified, typical being beta - allyloxypropionaldehyde and betamethoxybutyraldehyde All types of middle distillate fuel are included, and they may contain conventional additives, e.g. an anti-icing additive which is a mixture of 98 weight per cent methyl carbitol and 2 weight per cent ethylene glycol.
Patent GB-961303-A (GB)
Title: Improvements in or relating to a bridge for measuring the electric conductivity of electrolytes
IPC: G01N27/04
Filed: 1960-07-20
Abstract: 961,303. Measuring liquid conductivity. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 20, 1960 [July 23, 1959], No. 25305/60. Heading G1N. In a bridge for determining the conductivity of an electrolyte the effect of temperature variations on the electrolyte are compensated for by including in one branch of the bridge circuit a negative temperature coefficient resistor in series combination with a variable resistor and a fixed resistor. With reference to Fig. 2 one branch of the bridge circuit comprises the conductivity cell Rx, containing the liquid under test, the conductivity of which is temperature dependent, in series with a fixed resistor Rm. The outer branch of the bridge comprises a negative temperature. coefficient resistor R2 in series with variable resistor R4 and 10 ohm fixed resistor R5. The variable resistor R4 is connected in parallel with resistors R6, R7 having values in the ratio of 99:1 and to the junction of which is connected a potentiometer type resistor Rp, the tapping 2 of which forms one output terminal of the bridge, the other terminal being at 1. With the bridge arranged as above R4 can be varied dependently upon the temperature coefficient of the conductivity of the electrolyte and in order to carry out the necessary compensation a measurement is first made at 20‹C., the voltage at point 2 being then independent of the value of series resistor R4 at this temperature. The temperature of the liquid is increased to the maximum operating temperature occurring when the resistor R4 is varied so that the same indication is obtained as at 20‹C.
Patent GB-1396133-A (GB)
Title: Reduction of oxides of nitrogen in combustion gases
IPC: F01K21/04
Filed: 1972-05-30
Abstract: 1396133 Reducing formation of nitrogen oxides FOSTER WHEELER CORP 30 May 1972 [28 May 1971] 25320/72 Heading F4B A combustion chamber 28, particularly in a steam generator, has a burner 30 supplied with liquid, gaseous or pulverulent fuel from a source 32, with air from a fan 36, and with the exhaust gases from a turbine 44 having a combustion chamber 54 fed with fuel from a source 56, water from a source 60 and combustion air from a compressor 48 driven by the turbine 44. The turbine exhaust gases containing steam and combustion products dilute the combustion gases formed in the furnace 28 thus reducing the furnace temperature and reducing the production of oxides of nitrogen.
Patent GB-321268-A (GB)
Title: Improvements in a process and apparatus for dust removal from gases
IPC: B01D45/10
Filed: 1928-09-04
Abstract: 321,268. Atkins, G. R., Corner, G. H. C., and Imperial Chemical Industries, Ltd. Sept. 4, 1928. Scrubbers and washers have one or more sets of oppositely flowing and commingling water sprays 3, 4 at the entrance to dust removal apparatus 2 which is provided with corrugated baffle plates 7 irrigated with water from a pipe 8. The sump 12 may have a spray 13. In a modification an overhead gridwork is provided for distributing water over the plates. The vertical edges of the plates may be engaged by notched plates which with spacing bars 15 form a framework permitting any one plate to be withdrawn vertically on removal of the top cover.
Patent GB-419626-A (GB)
Title: Improvements in or relating to ship propulsion systems
IPC: B63H23/00
Filed: 1933-09-13
Abstract: 419,626. Turbine plant. WALKER, G. W. HIGGS-, Whitehall, Kingswinford, Staffordshire. Sept. 13, 1933, No. 25369. [Class 110 (iii).] In ship propulsion systems employing turbines, the high pressure turbine is arranged to rotate constantly in one direction and is geared to the propeller shaft through alternative drives giving forward and reverse rotation, each of which drive includes a fluid coupling. The high pressure turbine 1 drives a shaft 2 which through reduction gears 3 drives a shaft 4. The shaft 4 is connected through gears 6 with a sleeve on the propeller shaft 5 and with the driving member of a fluid coupling 7. It is also connected through gears 8 which provide reverse rotation with the sleeve mounted also on the propeller shaft 5 and secured to the driving member of a fluid coupling 9. The driven members of these couplings are keyed directly to the shaft 5. The high pressure turbine 1 has a control valve 13 and its exhaust passes by a pipe 14 to a valve box 15 and thence by a pipe 16 leading to the forward low pressure turbine or through a feeder 17 leading to the astern low pressure turbine. The valve 15 is connected with a servomotor control 11 and with the valve 10 which controls the selection of the fluid coupling required. When the change-over from the head to astern is being made a deceleration governor 18 is mounted on the shaft 4, this governor actuating through linkwork a valve 19 controlling the supply of fluid to the couplings 7, 9. Specification 419,969 is referred to.
Patent GB-1118870-A (GB)
Title: Process for the halomethylation of aromatic compounds
Inventor: KWANTES ARIEN
IPC: C07C17/32
Filed: 1967-06-01
Abstract: Ditolylmethane is obtained as a by-product in the reaction of toluene with formalin and HCl at 125 DEG , 140 DEG  or 149 DEG C.ALSO:Aromatic compounds are halomethylated by reaction with CH2 (or a precursor) and a hydrogen halide at 105-145 DEG  C. Examples describe the chloromethylation of toluene, an ethylbenzene/xylene mixture and 1,2,4-trimethylbenzene; the production of 2-chloromethyl-1,3-dimethyl-5-tert-butylbenzene is also specified. Halomethylation of anisole and diphenyl ether is mentioned.
Patent GB-1267347-A (GB)
Title: Optical profile grinders
Inventor: MASON PETER ALAN
IPC: B24B49/12
Filed: 1968-05-28
Abstract: 1,267,347. Grinding machine. WICKMAN MACHINE TOOL SALES Ltd. 18 June, 1969 [28 May, 1968], No. 25396/68. Heading B3D. An optical profile grinding machine comprises a workpiece support 11, Fig. 1, apparatus for supporting a grinding wheel 16, means for producing relative movement between the grinding wheel and the workpiece, a platform for supporting an enlarged layout of a profile to be reproduced on the workpiece, a microscope for viewing the workpiece and the grinding wheel, and optical elements whereby a reduced image of the layout on the platform can be superimposed upon the image of the workpiece and grinding wheel visible through the microscope. In the machine described, the enlarged layout is a line scribed in an opaque coating on a transparent sheet forming the top face of a light unit, or is an illuminated drawing. Light from the layout strikes a mirror 42, Fig. 5, and then passes through a reducing lens 41 to produce a reduced image at 51. Light from a source 45 passes through a filter 46, which may be coloured, to illuminate the workpiece and grinding wheel which are located in a plane 52, and form a contrasting back ground thereto. The plane 52 and image 51 are equidistant from a beam splitter 38 so that when the light beams 44 from the two sources are combined and viewed through the eyepiece 31 of the microscope an image of the enlarged layout is seen superimposed on the image of the workpiece and grinding wheel. The magnification of the layout image may be varied by altering lens 41 or by moving the layout platform towards or away from mirror 42. By this latter expedient a series of differently sized workpieces may be produced. The workpiece support table 11, Fig. 1, is horizontally adjustable on perpendicular slides 12, 13, and vertically adjustable by control 14. The grinding wheel 16 is mounted with its axis horizontal on a vertical slide 17 carried by a block 18 which is rotatable on a part 19, movable on slides 21, 22 and tiltable on part spherical bearing surfaces (not shown). A dust extraction unit is also provided.
Patent GB-601342-A (GB)
Title: Improvements in gas lighting devices
IPC: F23Q7/16
Filed: 1945-10-02
Abstract: 601,342. Gas-lighters. WEBB, sen., J.; WEBB, jun., J., and WEBB, T. Oct. 2, 1945, No. 25527. [Class 75(iii)] A gas lighter comprises a gas tube 6, a housing 7 for a valve 9, Fig. 1, 34, Fig. 7, or 42, Fig. 9, and a pilot jet tube 13 communicating with the housing 7 and having adjacent its mouth a filament 21, one end of this being connected to the central terminal of a battery 26 through an outer tube 18 insulated from the inner gas tube 6 and the other end being connected to the second terminal through the gas tube. The tube 6 is carried by a block 1 having a transverse passage 4, Fig. 6, communicating with a gas supply pipe 3, and the block may carry an arm 22, Fig. 1, to support a container 24 for the battery 26. In the form of Fig. 1, the valve 9 is provided with a push button 16 having a metal washer 31, so that when the button is depressed, gas may pass from the tube 6, through bore 11 in the valve 9 and bore 12 in the housing 7 to the pilot-jet 13, while an electric circuit is completed from the battery, contact 27, arm 22, tube 6, valve 9, washer 31, pin 30 and arm 20 back to the battery through the filament 21, other arm 20, contact 33, outer tube 18, spring contact 32, container 24 and cover 25. In Fig. 7, a valve 34 is rotated by a handle to allow the gas tube 6 and the pilot-jet 13 to communicate through two bores 35, rotation of the handle also closing the circuit through the filament. In Fig. 9, a slide valve 42 may be depressed to allow two bores 45, 46 to communicate through a bore 44 in the valve, the electric circuit being simultaneously closed by the contact 32 engaging the outer tube 18. A tap 39 in the gas supply pipe may be provided with a shoulder engaged by a pin 40, Fig. 10, on the operating lever 41 of the slide valve 42 so that this slide valve may not be operated until the main gas supply tap is open. The arms 20 supporting the filament 21 may be strengthened by an insulating member 201 extending between them, and to prevent the filament from being burned out a capillary bore may be provided in the side of the pilot-jet tube 13 so that the small flow of gas through this capillary bore is ignited and in turn ignites the main flow through the tube 13.
Patent GB-911407-A (GB)
Title: A supporting structure for a microwave antenna reflector
IPC: H01Q1/12
Filed: 1961-07-21
Abstract: 911,407. Aerials. NIPPON ELECTRIC CO. Ltd. July 14, 1961 [July 21, 1960], No. 25672/61. Class 40 (7). A supporting structure for a microwave parabolic reflector 1 comprises a weight-supporting fixture (w.s.f.) 5 pivotably attached to the reflector, a pair of adjustable fixtures 4a 4b located on either side of the w.s.f. on a line drawn therethrough, and a further adjustable fixture 4c located along a perpendicular to that line at the w.s.f., whereby adjustments may be made to the reflector attitude about two coordinate axes with complete independence therebetween. A mounting frame for the fixtures may be used, Figs. 7, 8 (neither shown).
Patent GB-930826-A (GB)
Title: Lubricator assembly
IPC: F16N7/34
Filed: 1960-07-22
Abstract: 930,826. Air line lubricators. C. A. NORGREN CO. July 22, 1960 [May 4, 1960], No. 52707/60. Class 12 (3). In an air line lubricator 10, a control unit 18 is disposed in the air passage 14 to maintain an air pressure differential between the inlet 15, and outlet 16, of the lubricator, and a valve control unit 71 in the lubricator allows recharging of oil without interrupting the flow of air. The lubricator 10, Figs. 1, 3, comprises an aerosol generator 11 and a reservoir 12, the former being connected to an air line at points 15, 16, and the flow of air through the bore 14 being controlled by an adjustable vane 46, forming part of the control unit 18. Oil is drawn from the reservoir through a tube 28 into a sight tube 37, and thence to a Venturi plug 21, and a diffusion plug 23, and is mixed with air passing through bores 20, 22, thus forming an aerosol which passes through a passage 40 for delivery through outlet 16. The basic drip rate of the oil from the tube 37 is controlled by bleeding air from the bore 14 to a sight feed dome 36, through an interchangeable plug 41. The required pressure differential in the bore 14 is controlled by the control unit 18, Figs. 2 and 5, which comprises a cartridge 44 inserted in the bore 14. A rotatable shaft 48 carries a vane 46 having wings 54, 55, of unequal length, the short wing 54 engaging a bore 52 in the unit 18, and the wing 55 engaging a segment 53 in the wall of the cartridge 44. The vane is spring-urged to close the bore 52, as shown in Fig. 2, by a torsion spring 56, located in a member 57, and a spring washer 59 urges the member 57 and a retainer cup 60 into engagement. The members 44, 57 and 60 have interengaging serrations 64, 65, and adjustment of the tension in the spring 56, and therefore the pressure differential on opposed sides of the vane, is carried out by urging the member 57 against spring 59, and rotating the former, thus engaging different serrations. To avoid shutting off the line pressure when recharging the reservoir, a filler plug 86, Fig. 3, carries a rod 92, which engages a leaf spring 80 on which is secured the valve 71. When the plug is screwed down the valve is held open, but as the plug is removed the leg 81 of the spring 80 moves upwardly and the valve 71 closes. With the vane in the closed position, air entering at 15 passes through the bores 20, 22, Venturi 21, and plug 23, into a chamber 24, thus creating a reduction in pressure in the system which induces a flow of oil from the reservoir, through the tube 37. The oil mixes with the air in the Venturi, and the aerosol passes through the passage 40 for delivery through outlet 16. If an air control valve for the tools to be lubricated is connected to the outlet 16, and is closed, there will be no pressure differential in the lubricator and the vane will remain closed. As the valve is opened, the vane will rotate until there is a maximum flow through the bore 52 and the required differential pressure will be maintained. U.S.A. Specification 2,990,848 is referred to.
Patent GB-601498-A (GB)
Title: Improvements relating to coin-operated delivery machines
IPC: G07F17/42
Filed: 1945-10-03
Abstract: 601,498. Delivery of change in coinfreed apparatus. BRECKNELL, MUNRO, & ROGERS, Ltd., and DOLMAN, H. J. Oct. 3, 1945, No. 25730. [Class 27] In apparatus wherein change coins are delivered from a container 5, and a coin detector 11 is adapted, when the container has been emptied, to close contacts 14 to bring a further container into service, the coin detector 11 is biassed, e.g. by a spring 12, to bear against the coins but is periodically moved temporarily clear of them to allow their free movement down the container. In the particular apparatus shown, coins are delivered two at a time by a reciprocating slide 1 actuated by a spring 3 under the control of a bell-crank 8 oscillated by a continuously rotating cam 10. Full movement of the slide to deliver is normally prevented by a locking catch 6 which is released by a solenoid 7 when a coin requiring change is inserted into the apparatus. At each rotation of the cam 10, whether the catch 6 is released or not, a small rearward movement from the position shown is imparted to the slide 1, and this causes a pin 1e on it to engage and rock the coin detector 11 anti-clockwise to relax its pressure on the coins. If, when released by the pin 1e, there are insufficient coins to hold the detector, it rocks further clockwise to close the contacts 14. This breaks the circuit of solenoid 7 to put the delivery mechanism out of action and also brings a further mechanism with a full supply of coins into service.
Patent GB-601822-A (GB)
Title: A new or improved bed warmer
IPC: A61F7/00
Filed: 1945-10-04
Abstract: 6 0 1,8 2 2. Electrically -heated bed warmers. HILL, P. A. Oct. 4, 1945, No. 25809. [Class 39(iii)] A bed warmer comprises a hollow closed body containing an electric heating element which is supported in aconnecting member carried in a flexible disc situated in a neck portion of the casing. In the particular embodiment of the invention, the heating element is an electric bulb 22 carried in a holder 18 in a disc 17 of rubber or other insulating material, situated in a neck portion of the casing 10. Opposite the lamp 22 is an opening adapted to be closed by a removable cap 25 having perforations 26, the cap carrying a spring clip 28 on which is supported an element 29 containing volatile compounds. Other forms of electric heating elements may be used, and gravity-loaded and thermostatic switches may be employed on the casing.
Patent GB-709578-A (GB)
Title: New or improved control device for textile roving frames
IPC: D01H13/16
Filed: 1951-11-05
Abstract: 709,578. Suction end-catchers for roving frames; stop motions. BECHTLER. H. C. Nov. 5, 1951 [Nov. 22, 1950], No. 25879/51. Classes 120(2) and 120(3) [Also in Group XL(b)] A control device for a roving frame equipped with broken-end suction apparatus has a suction duct provided with a source of radiation emitting a beam that affects a device responsive to variation in the intensity of the beam to operate members controlling the drive of the roving frame, so that fibrous material passing through the duct causes the frame to be stopped. In one embodiment, a roving frame is driven by a motor 2 through a shaft 1 and is provided with an air duct 7 having nozzles 8 and connected through a filter box 12 with an air pump 14 driven by a motor 15. Fibrous fragments sucked along the duct 7 travel along the narrow edge of a V-shaped portion of a bend 10 in the duct 7. In this portion they pass across a beam of light from a source 17 directed towards a photo-electric cell 19 which, on interruption of the beam, operates a contactor 27 to stop the motors 2, 15. When re-starting the frame, a time-lag relay 32 causes the motor 15 to start a few seconds after the motor 2. Where the duct 7 is not associated with an individual motor 15, but is connected to a collecting duct common to many machines, an arrangement of valves may be provided so that the duct 7 is by-passed when the frame is stopped. In another form of controlling device, a photo-electric cell and light source may be operative in a subsidiary passage of a bend 10, the fibrous fragments being caused to pass into this subsidiary passage. Another embodiment, in which individual strand suction tubes are coupled with a common duct, has the light source and cell operative across the duct. A signal light may be provided to indicate when the frame is running.