baber/WOPTO huggingface dataset:
Patent GB-665610-A (GB)
Title: Improvements in and relating to governors or control devices
IPC: G05D13/00
Filed: 1948-05-25
Abstract: 665,610. Fluid-pressure servomotor-control systems; valves. WILSON, W. G. May 25, 1949 [May 25, 1948], No. 14132/48. Class 135. A governor or control device comprises a hydraulic circuit having two variable - orifice flow resistances in series through which liquid is passed by a governor pump to afford two different control pressures and Venturi or injector means constituting a measure of vis-. cosity of the liquid for adjusting one of said resistances to control the ratio of the said pressures so as to compensate for the effect of viscosity variations on such ratio. As applied to the control of the change-speed gearing of a motor vehicle, a piston valve 36, which controls a servo for actuating the speed-change mechanism, is acted upon at its lower end by pump pressure which is delivered to a pipe 47 and on its upper end, through a piston 33 of larger diameter, by the pressure between a first variable orifice 7 adjusted by a piston 5 and a second variable orifice constituted by a rotatable sleeve 24 adjusted by a lever 30 connected to the throttle valve of an internal-combustion engine driving the vehicle. The liquid passes from the second variable orifice to exhaust through a pipe 25. The piston 5, which is spring-urged to a seat 4, is raised by pump pressure to permit liquid to flow through a Venturi 10, 11 carried by the piston and through the variable orifice 7, and a tapping 12 from the throat of the Venturi enables a pressure which is a function of the viscosity of the liquid to act on the upper.side of the piston 5, thus controlling the opening of the orifice 7 as a function of viscosity. Instead of providing exact compensation, the device may be so arranged that the speeds at which the valve 36 is in equilibrium for various settings of the second variable orifice 24 vary with viscosity.
Patent GB-484254-A (GB)
Title: Improvements in and relating to processes for the production of concentrated solutions of sodium or potassium bisulphite
IPC: C01D5/14
Filed: 1937-05-21
Abstract: In the production of solutions of sodium or potassium bisulphite by treating with sulphur dioxide concentrated solutions of alkali metal sulphates containing calcium compounds such as limestone, lime, or calcium sulphite with removal of precipitated calcium sulphate, the reaction is carried out in two stages, in the first of which excess of alkali metal sulphate is present, and in the second excess of calcium compounds.  Concentrated solutions practically free from sodium sulphate are thereby obtained.
Patent GB-143724-A (GB)
Title: Improvements in demountable rims
IPC: B60B23/02
Filed: 1919-06-04
Abstract: 143,724. Knowling, G. June 4, 1919. Detachable-rim attachments to wheels.-In a wheel of the type in which a demountable rim is provided on its inner periphery with lugs which engage transverse grooves on the fixed rim and are secured therein by a revolvable locking-ring, the lugs 15 on the demountable rim 14 are tapered or of conical form to fit similar grooves 16 in lugs 11 on the fixed rim 9. The locking-ring 12 is mounted to revolve on the fixed rim between the lugs 11 and a flange 13 on the front face of the rim. To hold the lugs 15 in position, wedges 17 on the ring 12 are adapted, by the operation of a handle secured to a lug on the ring 12, to engage wedge-shaped slots 18 in the lugs 15, and are kept in engagement by springs 19 on rods 20 mounted between the lugs 11 and carrying extensions 21 integral with, or secured to, the wedges 17. When the wedges 17 are disengaged, by the movement of the ring 12, from the slots 18, spring-actuated latches 24 are adapted to engage slots 25 in the ring 12 to hold' the wedge 17 in the disengaged position.
Patent GB-1369402-A (GB)
Title: Process for removing oxides of sulphur dust and mist from waste combustion gases
IPC: B01D46/24
Filed: 1973-03-23
Abstract: 1369402 Gas purification; sodium sulphate MITSUBISHI KAKOKI KAISHA Ltd 23 March 1973 [27 March 1972] 14193/73 Heading C1A Waste gas containing oxides of sulphur, dust and mist is passed into an absorber in which it is contacted with an absorbent solution containing at least one of sodium hydroxide, sodium carbonate and sodium sulphite, and then through a wet glass fibre filter to remove dust and mist. As shown, gases from a glass melting furnace are passed into an absorber 3 divided into sections, a scrubbing stage 4, an absorbing stage 5, and a glass fibre demister 6. In stage 4, the gas is scrubbed with a spray 9 of an absorbing solution from a tank 7. The solution conining part of the dust and some absorbed sulphur oxides is returned to tank 7 and recycled. The gases pass upwards into the absorbing stage 5 where they contact a spray 12 of absorbing solution from a tank 10. The solution in stage 5 is returned to tank 10 and recycled. The desulphurized gas is then passed to the glass fibre demister 6. If desired, the demister may be separate from the absorption tower 3. The purified gases are discharged via pipe 13 to the stack 15 and thence into the atmosphere. If desired, fuel oil having a low sulphur content can be burnt in after-burner 14 to heat the gases prior to entering the stack. The solution from the absorption tower may be treated to recover sodium sulphate. Spent absorbent from tank 7 may be fed to a sedimentation tank 16, the supernatant liquid being passed to tank 10. Some of the SO2 saturated absorbent may be passed from tank 10 to a control tank 21 where it is neutralized by addition of 0À1 to 3% by weight sodium hydroxide from pipe 22. Pipe 22 is branched into pipe 23 for the addition of sodium hydroxide to tank 10. In the control tank NaHSO3 is converted into Na2SO3, and the so-formed solution is fed via pump 24 and tank 25 to the base of an oxidation tower 27 provided with a cooling jacket 28. Oxygen or a free oxygen containing gas in line 32 is sparged into the solution in tower 27 by an atomizer 29, thus oxidizing the Na2SO3 into Na2SO4. The gases leaving the tower 27 contain SO2 and water vapour and are passed through a mist separator 35, the liquid settling out being returned to tower 27, and the SO2 containing gases passing via line 36 to the absorption tower 3. The Na2SO4 solution is passed to tank 34 and is purified by addition of sodium hydroxide to precipitate heavy metal impurities which are filtered off by drum 38. The solution is then allowed to crystallize to recover pure sodium sulphate.
Patent GB-1043875-A (GB)
Title: Duplicating
IPC: G03G13/16
Filed: 1964-04-06
Abstract: 1,043,875. Printing processes. XEROX CORPORATION. April 6, 1964 [April 26, 1963], No. 14196/64. Heading B6C. A duplicating master comprising a xerographic plate carrying a duplicating image consisting of a fusible material and a volatile colour reagent is used to produce copies by a vapour thermographic process on copy paper containing a material which reacts with said reagent to form an intense colour. The reagent is preferably rubeanic acid and the material in the copy paper may be a sulphate of nickel, cobalt or copper. The fusible material may be a resin toner. In the embodiment of Fig. 4 a xerographic image is transferred from a cylinder 50 to a conductive offset roller 57 by means of a transfer potential and a vapour fusing chamber 60 fuses the image. Copies are run off on to sheets 27, with the roller 57 tripped from the cylinder 50 by cam means 61, by means of a heated impression roller 63. Fig. 5 depicts an arrangement in which copy material in web form is imaged by a web, the copy material being selectively brought into the printing position by a solenoid device 91. The heat required to produce tha vaporization at the printing station may be provided electrically, by photoflash lamps infra-red devices, radiant illumination or by hot air.
Patent GB-1394794-A (GB)
Title: Substituted benzhydryl lactamimide derivatives
IPC: C07D225/02
Filed: 1973-03-23
Abstract: 1394794 Heterocyclic amine-imines RICHARDSON-MERRELL Inc 23 March 1973 [17 April 1972] 14213/73 Heading C2C Novel tautomeric compounds (I) and (II) (including salts and optical isomers thereof) wherein m is 1 to 3; n is 3 to 7; each of R and R<SP>1</SP> is hydrogen, a straight or branched alkyl group of from 1 to 4 carbon atoms, a halogen atom, trifluoromethyl, trifluoromethylthio, trifluoromethoxy, phenyl, phenoxy or an alkoxy group of from 1 to 4 carbon atoms, with the proviso that both R and R<SP>1</SP> are not hydrogen and with the proviso that when m is equal to 1 and one of R or R<SP>1</SP> is hydrogen, the other of R or R<SP>1</SP> is not alkoxy of from 1 to 4 carbon atoms, are made by reacting compounds (IV) with compounds (V). (preferably as the hydrochloride). Pharmaceutical preparations showing diuretic and anti-coagulant actions contain the novel compounds as active ingredient; administration may be orally or parenterally.
Patent GB-808556-A (GB)
Title: A process for the heat treatment of an unalloyed or low-alloy structural steel containing from 0.03% to 0.12% of aluminium nitride
IPC: C21D6/02
Filed: 1955-05-17
Abstract: A process for heat treating unalloyed or low alloy steel containing 0.03 to 0.12 per cent aluminium nitride made in ingots of 1000 kgs or greater comprises maintaining the aluminium and nitrogen in solution by accelerated cooling of the steel from the solidifying to 1000 DEG C., the aluminium nitride being formed only below this temperature by a precipitation heat treatment, after which the steel is normalized one or more times.  The steel may be given a solution heat treatment at at temperature depending on the nitrogen content before the accelerated cooling which is at a rate exceeding 90 DEG C. per minute.  The precipitation hardening may be carried out between A3 and 950 DEG C., the temperature depending on the aluminium/nitrogen ratio of the steel.  The normalizing treatment may be replaced by a treatment comprising varying the temperature several times in the A1-A3 range.
Patent GB-166415-A (GB)
Title: An improved elevating truck
IPC: B62B3/06
Filed: 1920-05-25
Abstract: 166,415. Chesnutt, J. L. May 25, 1920. Hand - trucks. - An elavating-truck includes rotatable lifting and lowering members, means normally tending to rotate them rearwardly, braking-means coacting with the lowering-member for causing selectively the forward rotation of the lifting-member, and manually-controlled means for causing selectively the forward rotation of the lifting and lowering members. A truck frame 10, Fig. 1, has inclined ways (not shown) on which run rollers supporting an elevator frame 12 adapted to be raised or lowered by a cable 43 secured thereto and to a wheel 28 adjustably bolted to a cam-wheel 26 operated by a tubular handle member 19 and mounted on a spindle 17 fixed in brackets 15, 16 attached to the frame 10. To control the raising or lowering operation, the handle member 19 carries a rod 33 having a camplate 41 which forces either a pawl 35 into engagement with one of a plurality of lugs 31 on the cam-wheel 26 or a pawl 36 into engagement with a lug 32 on a cam-wheel 27 loosely mounted on the spindle 17. A brake-member 51 slides on a rod 25 on extensions of the frame 10 and has detachable shoes 52, 53 coacting with cams 29, 30 on the cam-wheels 26, 27 respectively. The shoe 52 is adjustable to allow for wear on the cams. The slope of the cam 30 is much steeper than that of the cam 29. A spring (not shown) tends to rotate rearwardly the wheel 27 and another spring 59 presses it into frictional contact with the wheel 28. The arrangement of the camwheels is such that, as the frame 12 is raised, the cam 29 tends to recede from the brake-shoe 52 and the spring rotates the wheel 27 so that its cam 30 slides the brake-member 51 along the rod 25 and so maintains contact between the cam 29 and the shoe 52. Any tendency of the wheels 26, 27 to slip back is checked by the wedging of the cams between the brake shoes. To lower the frame 12 the wheel 27 is rotated to cause its cam to allow the brake-member 51 to slide in the opposite direction and so permit the wheel 26 to rotate. To initiate the lowering of the frame 12, teeth 70, Fig. 2, on the wheel 27 engage and move rearwards pawls 67, 68 pivoted on a lever 66 so that shoulders 72 on the pawls engage with abutments 71 on a lever 65 which moves the frame 12 rearwardly. When the lever 65 has moved sufficiently, the shoulders 72 slip over the abutments 71 and free the pawls from the wheels 27. An adjustable stop 73 on the frame 12 regulates the position of the pawls
Patent GB-108940-A (GB)
Title: Improvements in Spears for Current Testing Apparatus for Electrical Appliances.
Inventor: HUNTER CHARLES ERNEST
IPC: H01R11/18
Filed: 1916-10-07
Abstract: 108,940. Hunter, C. E., and Davis, W. J. Oct, 7, 1916. Drawings to Specification. Pencil and like holders.-A spear for currenttesting apparatus for electrical appliances such as the cells of storage batteries is fitted at the end remote from the point with a pencil, pen, &c., for the purpose of recording the reading of the instrument &c.
Patent GB-331041-A (GB)
Title: Improvements in or relating to radio apparatus
IPC: H04J7/02
Filed: 1929-05-08
Abstract: 331,041. Universal & General Radio Co., Ltd., and Myers, L. M. May 8, 1929. Diplex signalling; television apparatus.- Audible signals are transmitted on one side and visible signals are transmitted on the other side of the same high frequency wave. The Figure shows a transmitter in which modulating valves 3, 4, are biassed to transmit the bottom and top halves respectively of a. carrier from a source 1, the modulating voltages being applied by coils 8, 10. The receiver (Fig. 3, not shown), comprises two detecting valves biassed to be responsive to the top and bottom halves of the received carrier respectively.
Patent GB-1504724-A (GB)
Title: Mixing and degasification or thickening of synthetic plastics
IPC: B01F15/00
Filed: 1975-04-08
Abstract: 1504724 Mixing W HEDRICH [trading as WILHELM HEDRICH VAKUUMANLAGEN] 8 April 1975 [9 April 1974 3 Dec 1974] 14470/75 Heading B1C A process for the rapid, continuous and substantially homogeneous mixing and degasification or thickening of synthetic resins, or other synthetic plastics which consist of several components, with or without fillers, comprises introducing the several components into an evacuated container 1 in which they are mixed by stirrer blades 2 and further mixed in a continuous cycle by a conveyor screw 3, to which the blades 2 are attached, operating in a vertical mixing tube 7 so that the mixture is conveyed up the tube 7 from which it is discharged in a thin layer to degasify over an apron 8 around the tube 7, the temperature of the mixture being controlled by heating and/or cooling elements 20-26 which are divided into separately controlled sections to control the viscosity of the mixture. The container includes a vacuum pipe 11 covered by a baffle 12, a cover plate 5 from which the conveyor screw 3 depends and comprising a filling opening and an inspection glass, and a discharge valve 4 at a narrower bottom end. The heating and/or cooling elements 20-26 may be Peltier type elements in galvanic contact with the parts on which they are mounted.
Patent GB-201685-A (GB)
Title: Improvements in and relating to centrifugal steam separators and dryers
IPC: F22B37/26
Filed: 1922-05-23
Abstract: 201,685. McKee, N. T. May 23, 1922. Density separators. - Steam is introduced axially into a separator through the opening 15 and is deflected at right angles to the axis by a baffle plate 16; the separated moisture collects on the curved .wall 18 and passes out through the annular gap 10 between the separator casing 7 and the extension 8 of the valve casing 9. Curved guide blades 17 are arranged between the overlapping parts of the baffle-plate 16 and the casing 7 to impart a whirling motion to the steam. The valve 19 mav be of any suitable form. In a modification, the blades 17, Fig. 3, are secured to the casing only and the baffle-plate 16<a> has peripheral teeth fitting between the blades. The baffle-plate is supported by a spring 27 resting on a spider 26 secured to the casing and is normally in the position offering an entrance of minimum area to the steam. The pressure of the steam acts in opposition to the spring 27 and the area of the entrance is accordingly regulated automatically. In another modification, the baffle-plate is operated manually in accordance with the position of the valve 19. In the further modification shown in Fig. 6, the baffle-plate 16 is rigidly connected to the blades 17 and a sleeve 36, free to slide within the entrance 15 of the separator. is connected to an extension 38 of the valve rod 39. When the valve is opened the size of the opening between the sleeve 36 and the baffleplate 16 is increased. Reference has been directed by the Comptroller to Specification 202,387.
Patent GB-239920-A (GB)
Title: Improvements upon surgical trusses
IPC: A61F5/26
Filed: 1924-06-17
Abstract: 239,920. Harris, H. E., and Dixon, J. June 17, 1924. Trusses.-A body belt b and a steel spring c are attached to the pad a of the truss, the spring, which extends preferably to the hip of the wearer, working independently of the belt and being guided in sheaths d - - d<3> attached thereto. Preferably the spring is attached to the pad by a hinge e having pins g, g<1> which engage holes in the spring. In a modification, the pad is undercut to receive a plate having a stud or studs on which the spring is secured, the spring being kept in position by a screw cap and the belt being attached to the pad beneath the plate. Alternatively, the belt and the spring may both be attached to a stud on the pad, over which a cover is secured to hold the parts in position. The truss may be fitted with more than one spring and in place of the spring c a helical spring may be employed.
Patent GB-604820-A (GB)
Title: Improvements in gas burners primarily for furnaces
IPC: F23D14/60
Filed: 1946-05-15
Abstract: 604,820. Gas burners. COWLISHAW, W. May 15, 1946, No. 14633. [Class 75(i)] [Also in Group XXIX] In a gas burner in which the flow of gas is regulated by a thermo-statically controlled gas valve, the supply of air is automatically regulated by an air valve controlled by the supply of gas to the burner, the travel of the air valve being limited by two adjustable stops. The stem 19 of a valve 20 in the air inlet to a gas burner is attached to a leather diaphragm 18 extending across the top of a gas chamber 15 which communicates with a pipe 31 supplying gas to the burner. Two adjustable screws 25, 28 limit the opening and closing of the valve 20.
Patent GB-615003-A (GB)
Title: Improvements in or relating to photographic shutters
IPC: G03B9/20
Filed: 1945-12-31
Abstract: 615,003. Photographic shutters. KODAK, Ltd. (Eastman Kodak Co.), and FUERST, C. C. Dec. 31, 1945, No. 14711/48. Divided out of 613,531 under which a'Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 16, 1946. Drawings to Specification. [Class 98 (i)] In a photographic shutter which comprises several pivoted shutter blades, a master member which is mounted on a fixed pivot and a latch to hold the master member in a set position until it it is released by the shutter trigger to effect an exposure movement of the shutter blades, the master member latch is released by the shutter trigger through the intermediary of an oscillatable member, which is moved in one direction against spring action, during the shutter setting operation, and is held in such position until the trigger is operated to effect an exposure, whereupon the oscillatable member is driven in the opposite direction by the spring and a part thereof releases the master member latch. Specifica- 'tion 580,074 and co-pending Specification 613,531 are referred to, the description in the latter Specification differing from that in the present Specification only in that it refers to a movable pivot for the master member.
Patent GB-641324-A (GB)
Title: Improvements in or relating to devices for use in sewing machines
IPC: D05B19/00
Filed: 1948-06-01
Abstract: 641,324. Sewing-machines. MAN-SEW CORPORATION. June 1, 1948, No. 14778. Convention date, June 7, 1947. Addition to 634,525. [Class 112] The zig-zag sewing mechanism of the parent Specification is modified to provide for progressive variation of the amplitude of vibration of the needle, either related or unrelated to the lateral shift of the field of vibration, and also to enable the amplitude-variation and the fieldshift to be suspended when desired..The surface cord guide finger is oscillated by the needle-vibrating mechanism as well as being moved in accordance with the field-shift. Needles, vibrating Laterally.-The mechanism; as described in the parent Specification, comprises a pitman 64' reciprocated by a needle-vibrating eccentric 62 on a transverse shaft, an arm 69 connected to an arm 71 engaging a field-shifting cam 40, and a combining lever 66 connected to the needle-bar gate 29 by a link 68. In the mechanism described in the present Specification the eccentric 62 is a variable throw eccentric of known kind adjusted by longitudinal movement of a rod sliding in a bore in the eccentric shaft and spring- pressed towards the position of minimum throw; the end of this rod is engaged by the vertical arm of a lever 116, of which a horizontal arm extends beneath the machine arm and carries an adjustable abutment screw 118 for engagement with an arm 120 rigid with the arm 69 or, in a modification, with a similar arm actuated by a separate cam on the same shaft as 40. The lever 116 may also carry an adjustable stop screw which engages the under side of the machine arm to determine the minimum amplitude of vibration, or maintain the amplitude at its maximum, independently of the form of the control cam. The cam-actuated arm 71 may be slid on its spindle to withdraw it from the cam and to lock it and the arm 69 in a fixed position, the machine then producing a zig-zag seam in a straight line and, in the form shown, of fixed amplitude; in the form where the eccentric throw is controlled by a separate cam similar disconnecting means may be provided for independently fixing the amplitude of needle-vibration. Cords, applying.-The arm 91 carrying the finger 36 for laying a surface cord under the zig-zag stitching, instead of being pivoted to the presser-bar and rocked by a link 78 from the arm 69 which controls the field of vibration of the needle, is pivoted to a bar 84 slidable in a yoke 81 on the presser-bar. The bar 84 is shifted by the link 78, and the upper end of the arm 91 has a slot engaging a pin on the needle-bar gate 29, so that the cord is shifted laterally in accordance with the needle vibration but in the opposite direction; the cord is thus kept well clear of the needle at each stroke. The cord is led to the finger 36 through a tension device 34 and a wire eye carried by the lower end of the machine head.