baber/WOPTO huggingface dataset:
Patent GB-1263935-A (GB)
Title: Production of foamed alkali metal silicate particles
IPC: C04B20/06
Filed: 1969-07-08
Abstract: 1,263,935. Foamed alkali metal silicate. WASAG-CHEMIE A.G. 8 July, 1969 [29 Aug., 1968], No. 34385/69. Heading C1A. In a process for making foamed alkali metal silicate particles by heating granulated alkali metal silicate to 400-700‹ C., 0À1 to 10%, based on anhydrous silicate, of an expanding agent, i.e. a substance which evolves gas, evaporates or undergoes a gas-generating reaction at 400- 700‹ C. is added to the silicate before granulation. The expanding agent may be added in water soluble form to an aqueous solution of the silicate, or finely-ground expanding agent may be added to alkali metal silicate powder. In one embodiment alkali metal silicate containing expanding agent and about 20% residual water is converted into granules 0À1-10 mm. in diameter which are dried at about 200‹ C. and foamed at 500-700‹ C. Specified expanding agents are sugar, glycol, glycerine, casein, strontium hydroxide, ammonium nitrate, pyrolusite, zinc sulphate, ammonium sulphate, magnesium carbonate and carbon.
Patent GB-1533203-A (GB)
Title: Vacuum drying apparatus
IPC: C14B1/58
Filed: 1977-08-17
Abstract: 1533203 Vacuum-drying apparatus PAT PAN Inc 17 Aug 1977 [6 Sept 1976] 34469/77 Heading F4G In apparatus for vacuum-drying skins and leathers of large area, of the kind comprising a support sheet heated on its underside and a lid for the sheet adapted to make an air-tight peripheral seal via a gasket with the support sheet, and having means to connect the space between the support sheet and the lid to a source of vacuum, the support sheet and lid are of complementary shape comprising two upwardly sloping flat sides which meet along a rounded ridge.
Patent GB-484508-A (GB)
Title: Improvements relating to window raising and lowering mechanisms
IPC: E05F11/38
Filed: 1936-12-16
Abstract: 484,508. Window regulators. MORRIS MOTORS, Ltd., and COCKBURN, J. H. Dec. 16, 1936, No. 34539. [Class 20 (iii)] A vehicle-window regulator for sliding windows comprises a T-piece or like connector between the window panel and the lifting lever, which connector is guided by a stud or roller and an arcuate slot in a fixed member j integral with or connected to the inner lining k of the door &c. in which the window is fitted. The lifting lever a is actuated by hand-gearing b .. d, and may have a coiled counterbalancing spring acting at its pivot.
Patent GB-946843-A (GB)
Title: Improvements in or relating to means transmitting thrust in jaw crushers
IPC: B02C1/00
Filed: 1961-09-26
Abstract: 946,843. Jaw crushers. K. GAULDIE. Sept. 10, 1962 [Sept. 26, 1961], No. 34546/61. Addition to 842,050. Heading B2A. [Also in Division F1] The hydraulically-operated jaw crusher of the parent Specification has the thrust transmitted from the ram 11 to the jaw 10 through a bearing link 13 having surfaces 14, 21 mating with corresponding surfaces 15, 23 on the jaw and ram and means for delivering fluid to the mating surfaces under pressure from a source independent of the jaw-operating hydraulic system. The mating surfaces may be of partspherical or cylindrical form and the fluid delivered to them through ducts 18, 19 provides a film between them tending to keep them apart; the mating surface 23 is provided on an element 22 of sintered porous metal seated in the end of the ram as described in Specification 946,842. The pressure of the fluid supplied to the ducts 18, 19 should bear a definite relation to the force being transmitted at that instant from the ram to the jaw and its rate of flow may be limited by a throttling resistance.
Patent GB-861330-A (GB)
Title: Apparatus for shearing continuously advancing strip
IPC: B23D25/08
Filed: 1958-10-29
Abstract: 861,330. Shearing. WEAN EQUIPMENT CORPORATION. Oct. 29, 1958 [May 2, 1958], No. 34646/58. Class 83 (4). In a cyclically-operable shear which advances with the work to shear continuously fed strip and which includes continuously cyclicallyoperable upper and lower elements, a front stop or stops for the leading end of the strip is connected to and advances with the lower shearing element. A single front stop is situated on the centre line of the shear. The shear is similar to that disclosed in Specification 857,828. The upper shearing element A comprises an upper head 10 a shear blade 15 and a centrallylocated clamping member 27 slidable along a cantilever arm 17 attached to the head 10. The lower shearing element B comprises a lower head 14 a shear blade 16 and an arm 37 carrying a longitudinally-adjustable stop 38, the arm 37 being additionally supported by a pivoted link 40. Rolls for feeding the strip to the shear and means for rendering such feed temporarily inoperative at the instant of severing the strip are provided as disclosed in Specification 857,828. Alternatively the feed rolls may be continuously operated, the strip being humped intermediate the rolls and the shear blades so that the blades control the strip at the instant of shearing. The leading end of the strip is registered against the stop 38 and just before the instant of shearing the clamping member 27 engages the strip. Continued downward movement of the upper element A causes compression of gas, e.g. air in cylinders 23 to the piston-rods 24 of which the member 27 is attached by ball-and-socket joints, so that the strip is firmly held down during shearing. The downward movement of the clamping member 27 relative to the upper head 10 is limited by stop collars 32 adjustably secured on rods 30 attached to the member 27, so that during the upward movement of the head 10 the strip is released to be subsequently carried away at increased speed by conveying means. In a modification, a pair of opposed stops engaging the edges of the strip may replace the single centre stop. Specification 857,861 also is referred to.
Patent GB-1555254-A (GB)
Title: Speech analysis
IPC: G10L25/90
Filed: 1976-08-19
Abstract: PURPOSE:By detecting the greatest value the coefficient of correlation of a residual signal, the basic period of a voice shall be sampled with accuracy and stability and the circuit be facilitated.
Patent GB-870666-A (GB)
Title: A device for the automatic starting of emergency feed-water pumps
IPC: F22D11/00
Filed: 1958-10-29
Abstract: 870,666. Fluid-pressure servomotor control systems. PRVNI BRNENSKA STROJIRNA, ZAVODY KLEMENTA GOTTWALDA, NARODNI PODNIK. Oct. 29, 1958 [Oct. 29, 1957 (2); Nov. 5, 1957], No. 34680/58. Class 135. [Also in Groups XXVI and XXVIII] A device for automatic starting of emergency feed-water pumps 1 with steam-turbine drive 2 on a drop in water pressure in the common feed line 28 by means of an auxiliary oil pump 29 driven by a steam turbine, in which the steam supply to the latter is controlled by the pressure in the suction line 34 of the pump 1. A pressure reduction in line 28, due to failure of the main electrically driven feed pumps, moves shuttle valve 32 via a lever and diaphragm 30 to pass pump suction line pressure through pipe 33 to diaphragm 38 to open steam supply valve 36 for turbine 29 driving the auxiliary oil pump, the speed of the turbine being controlled by pump outlet pressure actuating steam valve 41 through pipe 42 and a diaphragm. Oil pressure from pump 29 passes piston valve 20, which may be moved by hand at 24 or by a centrifugal trip device 23 on overspeeding of turbine 2 for connecting the pressure line 19 to sump, and moves piston 16 as far as line 26 to open a small steam supply valve 13 for low-speed warming up of turbine 2. Oil pressure via line 19, restriction 7 and line 6 moves piston valve 11 so that oil pressure via line 42 actuates piston 8 and opens turbine regulating valve 9. Pressure in line 26 leads to sump via piston valve 25, but the latter is moved downwards by pressure in 19 so that after a delay the drain to sump is closed and pressure in 26 lifts a piston valve 22 to release pressure in line 6 whereby piston valve 11 is lowered and piston 8 raised to close turbine valve 9 for equalizing pressure on both sides of main steam supply valve 14. With pressure built up in line 26, piston 16 opens valve 14 to supply full steam pressure and opens line 27 whereby pressure in line 19 acts on the top of valve 22 to stop the venting of line 6, whereupon pressure in line 6 raises valve 11 to re-open turbine regulating valve 9 for full-speed driving of pump 1. Pump 1 drives an oil pump 43 to replace pump 29 and its outlet pressure in line 42 closes valve 41 to cut out turbine and pump 29. The speed of turbine 2 is controlled by governor 3 actuating a leak-off valve with respect to a moving seat on the end of the hollow stem of piston 4 which actuates a further piston and piston valve 5 controlling a leak-off from line 6 leading to valve 11 controlling valve 9.
Patent GB-409439-A (GB)
Title: Improvements in or relating to free-wheel mechanisms with back-pedalling brakes
IPC: F16D41/24
Filed: 1932-12-07
Abstract: 409,439. Back - pedalling brake and free-wheel arrangements. MULLER, E., 23, Elisabethstrasse, Spandau, Berlin. Dec. 7, 1932, No. 34720. Convention date, Dec. 17, 1931. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 19, 1933.] [Class 136 (ii).] Free-wheel and back-pedalling brake mechanism comprises a driving wheel and a driven wheel, a braking surface on the driven wheel, independent braking and clutching means freely mounted between the driving wheel and the braking surface, and control means on the driving wheel adapted to act selectively upon the clutching means to produce a driving connection between the driving and driven wheels, or upon the braking means to produce a braking action, the control means acting directly upon the braking and clutching means. A sprocket wheel 4 is provided with inwardlyprojecting lugs or cams 15, 15<1> for controlling a clutch member 3 and brake members or shoes 2, which are freely mounted around an inner member 1, provided with wedge-shaped &c. braking parts 8 and fixed to the wheel hub by means of an oval recess 19 adapted to fit on to the similarly-shaped end of the hub. In forward driving, each lug 15<1> moves between inclined faces on lugs 12, 12<1>, Figs. 4 and 7, on the clutch member 3, which is thus moved laterally by the lug 12 to effect engagement of teeth 9 with teeth 9<1> on the member 1 to drive the latter. On free-wheeling, the lug 15<1> engages the lug 12<1> to disengage the teeth 9, 91. On back-pedalling, each lug or cam 15 forces a roller 7 inwards through an opening 14, Fig. 7, in the clutch member 3, so as to press the brake shoes 2 on to the part 8 of the member 1. The brake shoes 2 are acted upon by a retractive resilient steel ring 30, Fig. 2. In order to anchor the brake shoes 2 when the brake is applied, laterally-projecting lugs on the shoes are adapted to engage projections 13 on a ring 5 to which is fixed one end of an arm, the other end of which is clipped &c. to the cycle frame. The braking-surfaces may be lubricated. The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specification 410,450. This subject-matter does not appear in the Specification as accepted.
Patent GB-1270308-A (GB)
Title: Improvements in or relating to circular linking machines
IPC: D05B69/22
Filed: 1969-07-10
Abstract: 1,270,308. Linking-machines. E. H. P. M. HAHN. 10 July, 1969 [30 July, 1968], No. 34855/69. Heading D1G. In a circular linking machine a centrifugal clutch is provided having a driving part 45 with segments 26b' and rollers 47 and a driven part 26a" which is provided with a lug 26c which corresponds to a preselected needle position and is engaged by an abutment lever 1 (Fig. 2) under the control of an electromagnet 5 which also switches off the driving motor by means of a switch 8. As shown in Fig. 2 when the electromagnet 5 is energised the armature 5b thereof moves upwardly causing the abutment lever 1 to be moved horizontally out of the way of lug 26c and also allowing the switch 8 to start the motor. When the electromagnet 5 is de-energised the abutment lever moves to abut the lug 26c and the motor is stopped. When the machine is thus stopped a handwheel 42 can be pushed in so that gears 54 and 55 engage to move the shaft 20 and rotate the points manually. As this is done a rod 58 is bent to close a switch 53 which causes a second electromagnet 6 to be energised. The armature 6b of this second lifts the abutment member 1 away from the lug 26e and allows rotation of the driven part of the clutch by the handwheel without energisation of the drive motor. Control buttons may be provided in parallel to the switch operating the electromagnet 5 which causes movement of the machine only while the button is depressed, thus allowing powered rotation of the points circle for short periods. (For Figures see next page)
Patent GB-625855-A (GB)
Title: Improvements in vapour burners particularly for heavy fuel oil
IPC: F23D5/00
Filed: 1946-11-25
Abstract: 625,855. Heavy oil burners; vaporizing apparatits. ZIMBELMAN, G. W. Nov. 25, 1946, No. 34932. [Class 75(i)] A vapour burner particularly for use with heavy fuel oil comprises a cylindrical burner pot 30 disposed coaxially within a cylindrical shell 10 and spaced therefrom to form an air space closed at one end, the pot being provided with an oil receiving channel 18 and having vertically spaced apertures 29, 30, 31 in the wall thereof, and an annular baffle 19 having apertures 23 and a downwardly directed inner flange 25 overlies the channel 18 and is disposed above the apertures 29. A second similar baffle 20 may be spaced vertically above the baffle 19. The lowest series of apertures 29 are inclined to direct the air flowing therethrough circumferentially of the cylinder wall, whilst the intermediate apertures 30 are disposed radially, and the upper apertures 31 extend inwardly and upwardly through the cylinder wall to drive the combustible mixture through the opening 27 in an upper baffle ring 22. The central openings 26 in the baflles 19, 20 provide passages through which the combustible mixture passes upwardly. Air is admitted to the annular air space through an opening 12.
Patent GB-1273132-A (GB)
Title: A screw for a screw mixing, heat exchange and/or conveying apparatus
Inventor: CHRISTIAN JOSEPH DENNIS
IPC: B01F7/00
Filed: 1968-05-21
Abstract: 1,273,132. Mixing screw. PACKAGED POWER TERMINALS Inc. 9 May, 1969 [21 May, 1968], No. 34949/71. Divided out of 127,313. Heading B1C. [Also in Division B8] The claims relate to the fabrication and shape of the screw described in the Specification 127,313.
Patent GB-1419817-A (GB)
Title: Reducing or eliminating timing errors in a colour video signal derived from a record
IPC: G11B20/02
Filed: 1973-07-23
Abstract: 1419817 Colour television PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 23 July 1973 [26 July 1972] 34952/73 Heading H4F A colour video signal, Fig. 2, derived from a record medium is separated at S, Fig. 3, into the luminance component E y  and the chrominance component E c , the luminance component being converted to a lower frequency band in a demodulator D, the converted luminance component E<SP>1</SP> y  and the chrominance component E c  being fed to respective shift registers 12, 11 controlled by clock pulses applied at 15 to provide variable delays to compensate for timing errors in the played back signal. The shift registers can thus be made smaller than if the played-back signal were directly applied to a shift register. The chrominance component shift register 11 can be made smaller than the converted luminance component shift register 12, due to the lower bandwidth of the chrominance component, the clock pulses passed to the chrominance component shift register 11 being passed through a frequency divider (Q, Fig. 6, not shown) so that the chrominance component and the converted luminance component experience the same delays. The clock pulses are derived from a voltage controlled oscillator controlled by a signal from a comparator receiving a reference signal and a signal synchronized with the played-back signal, which may be an additionally recorded pilot signal, or field or line synchronizing pulses.
Patent GB-337226-A (GB)
Title: Improvements in cutoff for cigarette making machines
IPC: A24C5/28
Filed: 1929-11-15
Abstract: 337,226. Triggs, W. W., (American Machine & Foundry Co.). Nov. 15, 1929. Cigarette-making machines.-The cut-off blade 18 of a continuous-rod machine is mounted on an arm 17 pivoted to a pin 16 projecting from the disc 14 and also formed with a slot in which moves a pin 2 projecting from the smaller disc 3. The discs 3, 14 are driven in opposite directions through bevel gearing 8, 7, 15. Grinding discs 25, 26 are fitted.
Patent GB-955744-A (GB)
Title: Improvements in package for microphones or the like
IPC: B65D85/38
Filed: 1961-09-29
Abstract: 955,744. Cases for microphones. E. PLESS. Sept. 29, 1961 [May 12, 1961], No. 35049/61. Heading B8P. A microphone or like case 3 has an opentopped central space 5 for accommodating the microphone and flanges 1, 2 forming a bobbinlike structure on which the cable is coiled, an open slot 6 in the flange 3 and side wall of the central space enabling the cable to pass out to the bobbin. A transparent cover closes the open top and the space between the flanges, the lower flange 2 being larger than the flange 1 to provide a stop for the cover. A notch 7 accommodates the plug. The case 3 may be provided with a hinged stay to support the microphone, the case acting as a stand. The flanges 1, 2 may have upturned rims to retain the cable.
Patent GB-926733-A (GB)
Title: Improved propeller turbine power plant
Inventor: HAWORTH LIONEL
IPC: B64C11/30
Filed: 1958-11-01
Abstract: 926,733. Variable pitch propeller control. ROLLS-ROYCE Ltd. Oct. 6, 1959 [Nov. 1, 1958], No. 35112/58. Class 114. An aircraft propeller-turbine unit includes a device for maintaining a constant propeller thrust, the value of which is determined by the pilot. The propeller shaft 11 is carried in a ball-bearing 12, the outer race of 13 of which acts as a piston in a cylinder 15 formed by a fixed part of the engine so that the thrust T exerted by the propeller 10 is opposed by fluid pressure set up by a pump 16, the resultant pressure being transmitted via a pipe 19 to a thrust meter and via pipe 20 to a cylinder 22 containing a floating valve member 23 providing connections between a high pressure oil feed at port 28 and low pressure oil return at 30 and pipes 34, 35 leading to the fine and coarse pitch central unit. The valve 23 is loaded by a spring 24 under the control of an abutment 25 actuated by a lever 26. Assuming that the pilot moves lever 26 to the maximum forward thrust position shown, increased pressure exerted by spring 24 moves valve 23 downwards to allow high pressure oil to flow through pipe 35 to coarsen the pitch of the propeller, port 32 being connected via slot 29 and passage 31 to low pressure oil drain. The propeller exerts increased thrust which tends to move piston 13 to the left, reducing leakage through pipe 17, the resultant increased pressure in cylinder 14 acting in space 21 to raise the valve 23 until the equilibrium position is reached in which the ports 32 and 33 are closed. If the lever 26 is moved to maximum reverse thrust position, reducing the pressure of the spring 24, the valve 23 will rise and the pitch of the propeller be fired off until it begins to exert negative thrust, which will be transmitted to piston 13 and act against a Belleville washer 18. The leak to pipe 17 is enlarged and the resultant reduction in pressure in cylinder 14 is transmitted to space 21 so that valve 23 moves down to take up the equilibrium position in which ports 32 and 33 are closed. In the case of a propeller having a helical reduction gear, the end thrust exerted by the gears is counteracted by fluid pressure which may be torque meter oil pressure. Instead of the Belleville washer a fixed boost pressure may be applied to the right hand side of piston 13, which boost pressure is produced by taking the torque meter pump pressure and applying it to a constant pressure drop valve. An arrangement is shown for use when, e.g. by suitable design of the helical gears, the resultant sum of the propeller thrust and the gear end thrust is always rearward. Specification 884,552 is referred to.
Patent GB-621041-A (GB)
Title: Improvements in or relating to automatic electric control arrangements
IPC: G05B11/01
Filed: 1945-12-31
Abstract: 621,041. Resistance, inductance, and capacitance measurement. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 31, 1945, No. 35316. Convention date, Dec. 30, 1944. [Class 37] [Also in Group XXXVIII] The value of a resistance R1 is tested by connecting it in a Wheatstone bridge circuit with three standard fixed resistances R2,R42. arranged in a system to which an A.C. or D.C. voltage E is applied, the resulting unbalance applying a positive signal to one of the grids 46, 52 of a double triode valve 28 (see Group XXXVIII). Pairs of gas-filled rectifiers 34, 36 and 30, 32 are connected back to back and associated with delay networks whereby the flow of anode current in the relative section 1 or 2 of the double triode renders grid 84b of valve 34, or grid 84a of valve 30; more positive, thereby initiating current flow from an A.C. supply connected to terminals 116 of a motor. Current flows through one of the motor field windings to terminals 108a or 108b connected to the respective rectifier circuits. A departure of the value of the tested resistance from the tolerance limit operates the motor in the requisite direction to pass the resistance into one of two receptacles, depending on whether it is above or below a given value. Inductances and capacities may be tested similarly.
Patent GB-1368616-A (GB)
Title: Pyrazole derivatives
IPC: C07D521/00
Filed: 1971-11-26
Abstract: 1368616 Derivatives of 1-phenylpyrazole FUVEAU SA 26 Nov 1971 [26 Nov 1970] 35336/73 Divided out of 1368615 Heading C2C The invention comprises compounds of formula  and their acid addition salts, wherein (X) n  is o- or m-F, m-CF 3 , p-MeO, 2,4- or 3,5-Cl 2  or 2,3-Me 2 , and a process for making them by reacting the appropriately substituted phenylhydrazine with (MeO) 2 CHCH 2 CH(OMe) 2  in ethanolic medium in presence of concentrated HCl. Alternatively, the hydrazine may be reacted with epichlorohydrin.  Therapeutic compositions which comprise compounds of the above formula and have analgesic and anti-inflammatory activity, are claimed (inter alia) in the parent Specification.