baber/WOPTO huggingface dataset:
Patent GB-666626-A (GB)
Title: Method for machining heavy hollow articles, particularly turbine casings
IPC: B23B41/12
Filed: 1949-12-07
Abstract: 666,626. Boring and milling machines; boring-bars. BERTHIEZ, C. W. Dec. 7, 1949 [Dec. 14, 1948], No. 31405/49. Class 83 (iii). In a method of boring heavy hollow articles, e.g. turbine casings formed by two shells, 1, 2 having co-axial hollow portions, the shells are secured on the table 3 of a boring-machine so as to be disposed on both sides of a boring-head 9 mounted on a rotary spindle 8, the table is first moved to engage the shell 1 with the boring-head and after this shell has been bored, the table is moved in the opposite direction to engage the shell 2 with the boring- head whereby this shell is also bored. After these two operations, the table is moved so that the boring-head occupies an intermediate position between the shells, and the cutters adjusted. The above operations are then repeated as often as -may be necessary, the cutters being adjusted only after cuts have been taken successively on both shells. The shells are each fed rapidly until they engage the cutters, when the rate of feed is gradually reduced. The cutters are adjustable radially and lengthwise of the boring-head which is adjustable along the spindle, which may be fed axially. In a modification, the shells are arranged one above the other instead of side by side.
Patent GB-824862-A (GB)
Title: Valve means for controlling the movement of a fluid actuated machine or mechanism
Inventor: UDAL JOHN DAVY
IPC: F15B21/10
Filed: 1956-10-16
Abstract: 824,862. Valves. UDAL Ltd., J. P. Dec. 10, 1957 [Oct. 16, 1956; May 1, 1957], Nos. 31434/56 and 13835/57. Class 135. Fluid-actuated mechanism is controlled by a valve having an inlet port 5 adapted for connection through an attendant operated valve 6 to a source of fluid pressure, an outlet port 7 connected to the mechanism, an exhaust port 9, and a piston 15 movable at a controlled rate and under the control of the valve 6 to cause the valve member to close the inlet port 5 and permit the mechanism to be exhausted through the exhaust port 9. Normally a toggle link 12 closes the exhaust valve 10 when the spring- loaded piston moves down due to the cylinder being exhausted. When valve 6 is opened. pressure passes to a press clutch operating cylinder 8 and also via a restriction 18 and pipe 17 to lift piston 15 so that after a time interval a slot in the piston-rod engages the toggle pin 13 and allows the inlet to be closed and the exhaust to be opened. In a modification the piston 15 opens a normally closed valve similar to 4 to allow pressure to pass to an actuating means which moves a spring-loaded valve to close the connection between the inlet and outlet ports and open the connection between the outlet and exhaust ports.
Patent GB-339058-A (GB)
Title: Improvements in or relating to fastening means for purses, handbags, and the like
IPC: A45C13/12
Filed: 1929-10-17
Abstract: 339,058. Thompson, G. T., (trading as Broadhurst & Thompson). Oct. 17, 1929. Catches, ball-ended; stud fastenings. - A fastening for a handbag or the like comprises a non-circular protruding member 14 which is fixed by lugs 9 to a plate 11 on the bag, and a slot 7 formed in the flap 2 of the bag. A yielding ball-ended catch 17 which consists of a knob on a plate 18 which is supported on two springs 19, holds the flap to the bag after the member 14 is inserted. The slot 7 is built up of two plates 3, 4 which overlap as shown in Fig. 4. The knob 17 may be undercut to secure a stronger connection, and locking means consisting of a key operated cam which bears under the plate 18 in the locked position may be incorporated to prevent the yielding of the knob. The plate 18 may have two slots 7 which are fixed in line, one on either side of the flap, the plate being folded over the edge of the flap. Lugs may be provided on plate 18 which slide against corresponding lugs on the base plate 21.
Patent GB-1272383-A (GB)
Title: Ion propulsion unit
Inventor: HORA HEINRICH
IPC: F03H1/00
Filed: 1970-06-30
Abstract: 1,272,383. Ion sources. EUROPEAN ATOMIC ENERGY COMMUNITY. 30 June, 1970 [1 July, 1969], No. 31579/70. Heading H1D. [Also in Division F1] An ion propulsion unit (e.g. for a space vehicle) with a component having a surface which extends at least approximately perpendicularly to the acceleration direction of the ions and faces in said direction, has a system for producing a radiation beam, directed towards the surface, in front of which, in use, a plasma is disposed, the electric field strength Ev, referred to vacuum, of the beam being greater than where a is a constant n eco  is the critical electron density k is the Boltzmann constant z is the coefficient of ion nucleus charge T is the electron temperature. The ions to be accelerated are supplied by the plasma which is produced upstream of the surface of the component exclusively by the incident radiation, e.g. a laser beam, and/or by other means, e.g. radio-active, thermal, electric or electromagnetic energy sources. The ions may also comprise evaporated material of the component and/or other material, e.g. absorbed gas or gases delivered through pores or apertures of the component. With the specified value of field strength, non-linear effects are produced in the plasma so that accelerated ions have a final energy independant of the ion mass and dependant only on the ion charge. The direction of acceleration of the ions corresponds to the direction of the gradient of diminishing electron density in the plasma and is independant of the direction of incidence of the radiation beam which can thus be at an angle such that the radiation source is not damaged by the accelerated ions. The system for producing the radiation beam may be movable and may co-operate with a plurality of surfaces so that the direction of the accelerations may be made variable.
Patent GB-622251-A (GB)
Title: Improvements in or relating to printing telegraph apparatus
IPC: H04L17/00
Filed: 1946-10-24
Abstract: 622,251. Type-printing telegraphy. CREED & CO., Ltd., and THOMPSON, A. E. Oct. 24, 1946, No. 31594. [Class 40 (iii)] Printing telegraph apparatus comprises means whereby the local record of a transmitted message has an identification mark printed in the margin to distinguish it from a received message. When the type carrier is at its beginning-of-line position a detent 9 thereon turns a bell-crank 7 clockwise to the position shown. When the apparatus is transmitting and making a local record, each rotation of the transmitter cam-shaft causes a cam 1 to rock a second bell-crank 2 counter-clockwise, lifting the first bell-crank 7, and an interposing member 3 on which it is pivoted, to the position shown, in which it is latched by the engagement of a shoulder of the interposing member 3 with a fixed lug 10. When the printing cam is operative an auxiliary printing member 11 strikes the interposing member 3 against the inked ribbon 5 to print a vertical line in the margin of the local record of the transmitted message. A lip 12 on the member 3 engages with the printing member 11 and prevents a spring 4 from returning the interposing member 3 to its lower position clear of the ribbon 5 until the printing member 11 is retracted. When the type carrier leaves its beginning-ofline position, the detent 9 allows a spring 8 to rotate the bell-crank 7 counter-clockwise clear of the second bell-crank 2, so that the interposing member 3 remains clear of the ribbon 5 while the remainder of the line is printed. If the apparatus is printing a received message, the transmitter cam 1 will be stationary and the interposing member 3 unmoved. The length of the vertical line printed is arranged to be slightly more than the height of a line of type so that each local record has a continuous line in its margin.
Patent GB-411886-A (GB)
Title: Improvements in and relating to electric phase-difference responsive devices
IPC: G01R21/00
Filed: 1932-11-09
Abstract: 411,886. Automatic regulation. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Stone, L. F. ; Congers, New York, U.S.A.) Nov. 9, 1932, No. 31679. Convention date, Nov. 9, 1931. [Class 38 (iv).] An arrangement responsive to the power factor of an A.C. circuit comprises potential and current transformers connected to the circuit, a grid-controlled vapour rectifier, and means responsive to the rectified current, such as a relay 34 controlling power-factor correcting appliances, the anode circuit of the rectifier being excited from the potential transformer and the grid circuit from the current transformer. In the arrangement shown, in which the invention is applied to a three-phase circuit having three conductors 11, 12, 13, a pair of valves 19, 20 is employed, and the potential transformer 14 is connected across two of the conductors 11, 13, while the current transformer 24 is connected in the third conductor. With this arrangement, the grid and anode voltages are displaced 90‹ for unity power factor, and the rectified current increases for leading, and decreases for lagging, power factors. Specification 296,812, [Class 38 (v)], is referred to.
Patent GB-193932-A (GB)
Title: Improvements in or relating to carburetters for internal-combustion engines
IPC: F02M3/08
Filed: 1921-11-26
Abstract: 193,932. Brown & Barlow, Ltd., and Brown, C. Nov. 26, 1921. Spray carburettors. - A by-pass for starting comprises a detachable pilot member a which receives fuel from a nozzle a<1> and air from an inlet a<4>, which may have an adjustment screw a<3>; conduits b, c lead to the front and rear of a throttle valve e when in its closed position, but when the valve e is slightly open. Mixture is delivered through both conduits b, a which discharge on the same side of the valve. Specification 169,194 is referred to.
Patent GB-943303-A (GB)
Title: Fuel supply control mechanism for an engine
Inventor: TYLER STANLEY RALPH
IPC: F01D21/02
Filed: 1961-09-04
Abstract: 943,303. Fluid-pressure servomotor control systems. DOWTY FUEL SYSTEMS Ltd. Aug. 3, 1962 [Sept. 4, 1961], No. 31733/61. Heading G3P. [Also in Division F1] A spring-loaded valve 5 arranged to cut off the flow of engine fuel from an inlet 3 to an outlet 4 in response to a reduction of force exerted by a member, such as a spring-loaded diaphragm 10, operates as an overspeed governor, the force exerted by the diaphragm being determined by a speed-responsive valve which controls escape of gas under pressure, e.g. air from a gas turbine compressor, from a conduit 20. In the event of overspeeding the speed-responsive valve, between which and the gas pressure source is a restriction 16, opens to cause reduction of pressure below the diaphragm and consequent closure of the valve 5 which then remains closed due to the pressure of fuel in the inlet 3 despite re-establishment of pressure below the diaphragm as the engine slows down. To prevent the engine from stopping completely the valve 5 when closed may permit a small flow, or it may have a by-pass. In a modification the valve 5 and diaphragm are interconnected by a lever.
Patent GB-834271-A (GB)
Title: Process for the separation of the elements zirconium and hafnium
IPC: C22B3/34
Filed: 1956-10-18
Abstract: Zirconium and hafnium are separated from one another by partitioning their thiocyanates between water and an organic solvent, wherein the operation is carried out in the substantially complete absence of sulphate ions and in the presence of at the most 48 g.p.l. of chloride ions.  The hafnium is preferably extracted into the organic phase.  The zirconium and hafnium may be supplied to the partitioning as the chlorides or oxychlorides by having present a water-soluble thiocyanate, preferably ammonium thiocyanate, or thiocyanic acid, in a solution of which the zirconium or hafnium salt is dissolved.  It is convenient to carry out the partitioning using an aqueous solution free from all foreign ions.  Such a solution may be obtained by the double decomposition of equivalent solutions of barium thiocyanate and of zirconium-hafnium sulphates, or by a double decomposition followed by extracting the solution with an organic solvent which will only extract the zirconium-hafnium thiocyanate formed, or by preparing the zirconium-hafnium thiocyanate solution by ion-exchange, or by dissolving their hydroxides in a solution of thiocyanic acid either in water or in the organic solvent used for the partitioning. It is advantageous that the organic solvent contains thiocyanic acid, preferably in a concentration of 1N to 2N, before partitioning.  The partitioning may be carried out by known procedures.  A large number of suitable organic liquids for the partitioning are referred to, including diethyl ether, methyl-n-propyl ketone, n-butanol, cyclohexanol, n-butyl acetate, amyl acetate, ethyl isopropyl ketone, methyl isobutyl ketone, benzaldehyde, and a mixture of methyl-n-propyl ketone and benzene. After the partitioning the zirconium and any remaining hafnium may be precipitated from the aqueous phase with ammonia, and the filtrate may be acidified and employed afresh for the preparation of solution for partitioning.
Patent GB-1279141-A (GB)
Title: A process for the electrodeposition of gold-copper-cadmium alloy coatings
IPC: C25D3/62
Filed: 1969-06-24
Abstract: 1279141 Electro-deposition of gold alloys DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 24 June 1969 [28 June 1968] 31750/69 Heading C7B In a method of electro-depositing coatings of gold - copper - cadmium alloy from an aqueous cyanide bath using insoluble electrodes and periodically reversed direct current, the aqueous cyanide bath contains 1-3 g/l gold, 5-15 g/l copper and 0.1-8 g/l cadmium present as specified alkali metal cyanide salts, and 3-8 g/l free cyanide expressed as potassium cyanide, the pH of the bath is 9-11, and a silver concentration of 0.01-0.1 g/l is maintained throughout the electrodeposition process.
Patent GB-1085729-A (GB)
Title: Process control apparatus
Inventor: SCOBIE DAVID CHARLES HUNTER
IPC: G05B9/02
Filed: 1965-07-26
Abstract: 1,085,729. Control systems. IMPERIAL CHEMICAL INDUSTRIES Ltd. July 6, 1966 [July 26, 1965], No.31779/65. Heading G1N. [Also in Division H3] In a chemical process control system a sequence of control signals, derived from system measurements, is fed to a motor 10, Fig.2, which positions the wiper of a potentiometer 13 in response to each signal; and a servoloop, 15, 16 automatically repositions the wiper of a second potentiometer 12 in response to a voltage difference detected between the wipers, at the same time adjusting a system control element 11, the difference signal being monitored by a differential amplifier 17, and a Schmitt trigger circuit 19 being arranged to operate when the difference exceeds a predetermined value, to actuate a relay 21 and open the servoloop at 20 to suppress the new control signal. Diodes 25, 26 enable the Schmitt trigger to respond to a positive or negative difference signal, and a potentiometer 28 sets the predetermined value. The operation of the Schmitt trigger circuit can be inhibited by a manual switch 41 which renders transistors 37, 39, which constitute a two-state circuit, non-conductive and thereby cuts off the voltage supply to the Schmitt trigger, this being taken from the collector of transistor 37. This allows differences between successive control signals which exceed the predetermined value to be effective in the initial stages of a control cycle, when system parameters may be expected to vary widely; and transistors 37, 39 are subsequently rendered conductive to energize the Schmitt trigger by a pulse via a diode 59 from a bi-stable circuit 51 in response to a signal applied via contacts 52 from a programmer (36), Fig. 1 (not shown) at a preset time after the start of the process control cycle. A plurality of controlled processes may be monitored by switching the differential amplifier 17 to any one of a plurality of pairs of potentiometers 12, 13, and simultaneously switching into circuit any one of a plurality of preset potentiometers 28 to allow different predetermined levels to be selected. The relay 21 may operate alarm circuits Figs. 3, 4, 5 (not shown), which indicate and record the periods and the times of occurrence either of all suppression operations, or of those occurring after a predetermined number have already occurred.
Patent GB-1090076-A (GB)
Title: Improved pyrotechnic device
Inventor: SCHERMULY WILLIAM CONRAD STEPH
IPC: F42B4/10
Filed: 1963-08-13
Abstract: 1,090,076. Smoke producing rockets. SCHERMULY Ltd. Aug. 13, 1964 [Aug. 13, 1963], No. 31847/63. Heading F3A. A rocket-borne signal comprises a casing containing a propellant and a smoke pellet, the latter burning during free fall of the pellet subsequent to powered flight of the rocket. A tubular casing 1 of light alloy is provided with a propellant 2, positioned between a choke plate 4 and a partition 5 with a flash passage, and a smoke cartridge 3 comprising a tube 7 closed at each end with perforated baffles 8a, 8b and holding an annular smoke pellet 9 along the bore of which is a strip 10 of primed cambric for ignition of the pellet. The forward end of the casing 1 has a removable end cap 6 and the rear end is formed into a flight stabilizing fin by means of holes 12. In use the device is fired vertically and the final part of the propellant 2 to burn ignites the cambric 10 and the pres-  sure due to the propellant ejects the cartridge 3 removing the cap 6 in the process and the cartridge 3 with the ignited smoke pellet 9 falls freely.
Patent GB-830168-A (GB)
Title: Forged wheel constructions and method of making same
IPC: B21K1/28
Filed: 1957-10-11
Abstract: 830,168. Making wheels; perforating. BENDIX AVIATION CORPORATION. Oct. 11, 1957 [Nov. 23, 1956], No. 31886/57. Classes 83 (2) and 83 (4). [Also in Group XXXIV] In an aircraft wheel comprising two forged wheel halves bolted together (see Group XXXIV), the web 20 connecting the hub and rim portions 18, 22 of each wheel half is forged with circumferentially spaced offsets or pockets 64 which, during machining of the web surfaces, are removed to leave ventilation apertures 62.
Patent GB-1268166-A (GB)
Title: Improvements in or relating to container closures
IPC: B65D47/26
Filed: 1970-07-01
Abstract: 1,268,166. Cap with closable pour opening. CONTINENTAL CAN CO. Inc. 1 July, 1970 [15 July, 1969], No. 31895/70. Heading B8T. An overcap 50 is detachably secured by means of its flange 54, 56 to the rim 17 of a container 10, the overcap 50 comprising a disc 59 which is rotatable so as to bring its openings 61 (only one shown) into and out of register with a pour opening 60, the openings 61 being angularly spaced and of differing sizes, so as to vary the product dispensing pattern through the pour opening. The disc 59 may have a boss or stopper (39), Fig. 3 (not shown), on its underside which seats in hole 60 when the disc is in the "closed" position. The container may have a tear-off end panel 18 which is removed before the overcap 50 is applied, or may have an end panel 18 removable by use of a can opener.
Patent GB-538227-A (GB)
Title: Improvements in or relating to the manufacture of metal articles or masses
IPC: C22C33/02
Filed: 1939-12-12
Abstract: 538,227. Obtaining coherent masses from powdered metals ; compositions containing metals. OUBRIDGE, W. A. Dec. 12, 1939, No. 32011. [Class 82 (i)] [Also in Group V] Metal articles or masses having the properties of grey iron, such as piston rings, valve guides, cylinders and valve seat inserts and bearing bushes are made by sintering a mixture of soft and hard iron powders and 1-3 per cent. of graphite, with or without a bonding agent such as ferrophosphorus, and with or without the addition of a suitable proportion of any of the metals nickel, chromium, copper, molybdenum, vanadium, titanium, and manganese. The soft iron powder may be substantially pure iron and may constitute the greater proportion of the mixture, and the hard iron powder may be a white cast iron. Piston rings made by the process may be coated with a non-ferrous alloy such as bronze ; or the articles may have a facing, core, or backing of solid metal or alloy.
Patent GB-224400-A (GB)
Title: Improvements in, or relating to, lifting beams and hooks
IPC: B66C1/22
Filed: 1923-12-21
Abstract: 224,400. Moody, C., and Long & Co., Ltd., D. Dec. 21, 1923. Load, engaging.-To adapt a single set of hooks p, p for lifting objects of different sizes, the beam b is provided with alternative points of suspension for one or more of the hooks. As shown, the beam is provided with inclined slots h, highest at the centre m, so that the pin q by which a hook p is suspended may be transferred from one end of the slot to the other by lowering the beam until the hook rests upon the ground and then raising the beam. The slots may extend in zigzag form so as to provide several alternative points of suspension for the hooks.
Patent GB-1383647-A (GB)
Title: Process for the manufacture of benzodiazepine derivatives
IPC: C07D243/30
Filed: 1971-07-08
Abstract: 1383647 Benzodiazepines ROCHE PRODUCTS Ltd 7 July 1972 [8 July 1971] 32107/71 Heading C2C Compounds of the general formula (R<SP>1</SP>=H, Cl, Br, I, NO 2 ; R<SP>2</SP>=phenyl, o-fluorophenyl, o-chlorophenyl), are prepared by reacting a compound of the formula (X=Cl, Br, I), with hexamethylenetetramine under weak acidic conditions in the presence of a water-containing hydroxylic solvent. Reference has been directed by the Comptroller to Specifications 972,968 1,039,372 and 1,332,697.
Patent GB-1145674-A (GB)
Title: Potato seed cutting machine and improvements therein
IPC: B26D7/06
Filed: 1966-07-18
Abstract: 1,145,674. Endless conveyers. S. E. PETERSON. 18 July, 1966, No. 32230/66. Heading B8A. [Also in Division A4] A seed potato cutting machine comprises a pair of endless chains 20 between which are journalled a plurality of shafts 23 each carrying a plurality of rollers 27 shaped to provide pockets for receiving and centring potatoes between corresponding pairs of rollers on adjacent shafts. The rollers are rotated as they are advanced by chains 20 by bearing frictionally on plate 32. A plurality of endless belts 35 pass over shafts 23 between the rollers 27 and over a driving roller 36 to carry potatoes downwardly and forwardly from the end of the roller conveyer for engagement between feed rollers 49, 51 for cutting by knife 57.