baber/WOPTO huggingface dataset:
Patent GB-1007028-A (GB)
Title: Process for the production of 1,3,3,5-tetramethyl-1,1,5,5-tetraphenyl-trisiloxane
Inventor: SLININSKI SIEGFRIED
IPC: C07F7/08
Filed: 1964-04-10
Abstract: 1,3,3,5 - tetramethyl 1 -,1,5,5 - tetraphenyltrisiloxane is prepared by reacting methyldiphenylsilane, in the presence of methanol, with sodium hydroxide, in dilute toluene solution to give sodium methyl diphenyl silanolate which, after the removal of water and methanol by azeotropic distillation, is then reacted with dimethyl-dichlorosilane.  The methyldiphenylsilane may be prepared by reacting methyldichlorosilane with phenyl magnesium bromide in ethereal solution.  Specification 787,800 is referred to.
Patent GB-731684-A (GB)
Title: Steel for articles having high hot strength
IPC: C22C38/32
Filed: 1952-06-13
Abstract: An alloy steel, particularly suitable for the production of tubes, screws and other parts of steam power plants, turbine blades and installations for cracking, hydrogenation and the like, has the following composition: Cr 1.0-20.0, B 0.001-0.3, C 0.03-0.2 per cent, Fe the remainder except for normal impurities. The alloy may also contain one or more of W, V, Mo, Si, Zr, Ti, Nb, Ta and Co up to 5 per cent in total, Mn up to 1.5 per cent and/or Ni up to 2.5 per cent.
Patent GB-353577-A (GB)
Title: Manufacture of thiazole compounds
IPC: C07D277/82
Filed: 1930-05-16
Abstract: 2-Amino-arylenethiazoles are prepared by treating with sulphuryl chloride a thiourea of the type:  <FORM:0353577/IV/1> (wherein R is an aryl radicle which may contain halogen, alkyl or alkoxy substituents, but which has one free position oto the NH group; R1 is hydrogen, an aryl or alkyl group; R11 is hydrogen or an alkyl group) in the presence of an organic diluent, such as a chlorbenzene or ethylene dichloride.  The reaction proceeds smoothly to give the hydrochloride, little heat being necessary in most cases, and by treating the salt with alkaline hydroxides or carbonates or bicarbonates the free aminothiazole is obtained.  In examples is described the conversion by treatment with sulphuryl chloride of p-phenetylthiourea to 2-amino-6-ethoxybenzthiazole, o-tolylthiourea to 2-amino-4-methylbenzthiazole, 4-chloro-2-methylphenylthiourea to 6-chloro - 2 - amino - 4 - methylbenzthiazole, p - tolylthiourea to 2-amino-6-methylbenzthiazole, di-o-tolylthiourea to 2-o-toluidino-4-methylbenzthiazole, symm-methylphenylthiourea and symm-dimethylphenylthiourea to 2-methylamino- and 2-dimethylaminobenzthiazole respectively, a -naphthylthiourea to 2 - amino - b  - naphthathiazole.  Specification 229,253, [Class 2 (iii), Dyes &c.], is referred to.  The Specification as open to inspection under Sect. 91 (3) (a) claims the treatment with sulphuryl chloride of aryl thioureas generally, preferably such treatment being carried out in presence of a diluent; this subject-matter does not appear in the Specification as accepted.
Patent GB-553381-A (GB)
Title: Improvements in television systems
IPC: H04N5/202
Filed: 1941-11-26
Abstract: 553,381. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 26, 1941, No. 15239. Convention date, Nov. 27, 1940. [Classes 40 (iii) and 40 (v)] A television transmission circuit comprises an etectron discharge device 7 receiving on its control grid 5 signals including picture signals, blanking signals, and a reference voltage, a rectifier 25 in the output circuit of the electron discharge device, and means for applying a predetermined bias to the rectifier so that the signals passed are only those in one direction of polarity from a predetermined value. In the circuit shown in Fig. 1, the image signals are generated in a camera 1 supplied with synchronizing and blanking signals from a generator 9. The signals are amplified by an amplifier 3 and passed to the grid 5 of the electron device 7 through a condenser 8, which also transmits a blanking signal from the generator 9. This generator also supplies the blanking signal to a D.C. insertor circuit 11 which applies a reference bias voltage to the grid 5 of the electron device 7. The anode 17 of the electron device 7 and the cathode 23 of the diode 25 are connected to B+ through an adjustable resistance 21 in series with a fixed resistance 19. The screen grid 15 of the electron device 7 is connected to the same voltage source by the resistance 33. The anode 27 of the diode 25 is also connected to the same source of voltage through a resistance 35 in series with the resistance 33. The junction of the resistances 33, 35 is connected to a voltage regulator comprising a valve 37 in parallel with a condenser 39 and a resistance 41. The output is taken from the anode 27 of the diode to an amplifier 29 followed by a transmitter 31. In a modification, Fig. 4, a second diode 43 is added in the reverse direction in parallel with the diode 25, and an auxiliary valve 53 is inserted in the circuit of the diode 25 to act as a variable impedance which may be set to produce different amplification contrasts as for gamma control. In another modification, the second diode 43 is provided but the auxiliary valve 53 is omitted. Specifications 448,065 and 543,709 are referred to.
Patent GB-363281-A (GB)
Title: Improvements in swimming appliances
IPC: A63B31/04
Filed: 1931-05-23
Abstract: 363,281. Swimming appliances. SCHMITT, G. G. E., 23, Holmstedter Strasse, Wilmersdorf, Berlin. May 23, 1931, No. 15292. Addition to 345,869. [Class 77.] In a swimming appliance as described and claimed in the parent Specification, the thrust plate f is attached rigidly to the glove a, and maintained at an angle less than 180‹ to the palm of the hand. The plate f is connected to the glove directly or through the medium of a separate fastening strip e. In the latter case the strip and plate have upturned flanges which are riveted together, a wedge-shaped packing piece between them determining the angle between the plate and strip.
Patent GB-993812-A (GB)
Title: Charging valve for hydro-pneumatic suspension
IPC: B60G17/04
Filed: 1963-04-18
Abstract: 993,812. Hydro-pneumatic shock absorbers. USTAV PRO VYZKUM MOTOROVYCH VOZIDEL. April 18, 1963 [April 25, 1962], No. 15302/63. Heading F2S. [Also in Division B7] A self-levelling hydro-pneumatic suspension unit 24 is provided with a charging valve 15 containing a piston 16 with an annular groove 17 which, in the position shown, connects a pressure liquid supply line 14 with line 19 and the suspension unit 24 to charge the unit increasing its length until groove 25 communicates with chamber 26 of the unit 24 when pressure fluid passes through line 8 to the space below piston 16 raising the piston against spring 18 and cutting-off the supply conduit. A bleed hole 20 connects the space above piston 16 with atmosphere. When charging is complete, line 14 may be connected to a reservoir when the fluid in the space below the piston 16 will be pushed by spring 18 past non-return valve 22 and through line 14 to the reservoir. In a modification the charging valve is mounted on the unit 24.
Patent GB-125174-A (GB)
Title: Improvements in or relating to Internal Combustion Engines.
Inventor: OEHBORG JOHAN FREDRIK OLOF
IPC: B60Q1/12
Filed: 1917-10-22
Abstract: 125,174. Ohborg, J. F. O. Oct. 22, 1917 Motor power plant.-The exhaust from an internal-combustion engine 1 having a piston 3 is conducted through water in a chamber 7, and the resulting mixture of steam and gases is expanded beneath a piston 13 in a second cylinder 12, the piston 13 serving on its upper side to compress air for the combustion cylinder. The pistons 3, 13 may be combined as shown and drive the crank-shaft 22, which actuates through links 29, 23 a slide valve 10 controlling (a) a port 11 for admitting and exhausting the mixture operating in the second cylinder, and (b) a port 25 for the air which is compressed above the piston 13 and delivered to a chamber 27, from which it is supplied to the cylinder 1 through a valve 28 as a scavenging charge and also to a high-pressure compressor 40 for delivery to a starting air tank and to a fuel-injection nozzle. The valvegear is reversed by a lever 37. Water is introduced into the chamber 7 by means of an enlargement 52 on the rod of the slide-valve 10 which forces the water through a passage 54 and chamber 5 to the steam-generating chamber 7, which, according to the invention, surrounds the combustion cylinder 1, the steam cylinder 12, and the chamber 27.
Patent GB-800452-A (GB)
Title: Improvements relating to the manufacture of lengths of synthetic plastic material
Inventor: DEAKIN STANLEY THOMAS
IPC: B29C31/04
Filed: 1953-12-17
Abstract: The subject matter of this Specification is identical with that described in Specification 800,451 but the claims differ.
Patent GB-1212078-A (GB)
Title: Chlorination of caprolactam and n-substituted derivatives thereof
IPC: C07D223/10
Filed: 1968-03-29
Abstract: 1,212,078. Chlorinated coprolactams. SANYO CHEMICAL INDUSTRIES Ltd. 29 March, 1968 [30 March, 1967], No. 15383/68. Heading C2C. α - Chloro - # - caprolactom and N - substituted - α - chloro - # - caprolactoms are produced by chlorinating #-caprolactom or an N- substituted-#-caprolactom with chlorine in the presence of (a) phosphorus, a phosphorus or sulphur halide or oxyhalide, a phosphorus thiohalide or a complex thereof with a metal halide, and (b) at least one N,N-disubstituted formamide.
Patent GB-496637-A (GB)
Title: Improvements in or relating to mechanical labourers
IPC: A01C3/00
Filed: 1937-05-25
Abstract: 496,637. Digging-apparatus; distributers for manures &c. COOMBS, J. A. May 25, 1937, No. 15435/38. Divided out of 496,547, [Group I]. [Class 68 (i)] [Also in Group I] A mechanical labourer comprises a carriage on which a frame in the form of a relatively long jib is adapted to be raised and lowered by a winch, the forward end of the frame carrying a tool rotatable about a horizontal axis, and capable of raking, scooping-up and holding the material to be handled, the tool being driven through worm gearing by a motor on the carriage through a shaft coaxial with the hinge of the jib. A wheeled or tractor carriage 15 with variable speed drive, carries a frame 19 pivoted at 20 to a bracket 21, which may be adapted to swing laterally, the frame 19 being raised or lowered by a winch 26 and a cable 24 passing over a swingable jib 22. A preferably hollow shaft 27 is journalled in the frame 19 and is reversibly driven from a motor 35, Fig. 5, on the carriage through worm gearings 33, 30. The motor 35 may also drive the carriage and winch. On either side of the frame 19, the shaft 27 carries interchangeable spade-like tools 36 each built up of several elements bolted together and to the driving worm wheel and preferably provided with renewable tips. The upper forward part of the frame 19 is sharpened to throw off deposited material, and the lower forward part may carry a wheel. The machine is controlled from a station 42. One or more tanks 44, according to the width of the machine, may be provided and deliver to spraying outlets 46 under control of valves 47. When used in fertilizer manufacture, by intermittent oscillation and forward and backward movement, the tools may be used for transferring material from one part of the plant to another or to a cart, or the tool, when held vertically, may be advanced to act as a rake, or the tool when rotating may be used for mixing. The machine may also be used in agriculture for spreading manures &c. More than two tools, staggered angularly, may be provided. For digging &c., the shaft 27 may be supported at both ends, and, if desired, at the centre, and rotated by a gear train at one end, and a jib 22 may be provided at each end. Specification 496,547 is referred to.
Patent GB-1260834-A (GB)
Title: Improvements in and relating to stiffeners for garments
Inventor: FUTTER HANS WERNER
IPC: A41C3/12
Filed: 1968-04-01
Abstract: 1,260,834. Garment stiffeners. FUTTERS (LONDON) Ltd. 31 March, 1969 [1 April, 1968], No. 15566/68. Heading A3V. [Also in Division B5] A stiffener for a garment comprises a strip 1 of relatively stiff plastics material moulded to a flexible backing material 2. The backing may form part of the garment itself or it may be a woven fabric or other sheet material suitable for attachment, e.g. by sewing, to the garment. The strip 1 may be straight as, for example, in a belt or a corset or curved in the form of a half-loop as for example in a brassiere. In the latter case a single half loop is suitable for one cup of the brassiere and a second half-loop may be moulded on to the same or a separate backing material. A single moulded strip may be formed from two sideby-side half loops joined at adjacent ends by a bridge-piece or an inverted V-piece. The strip may stand up from the surface of the backing on one or both sides or it may be embedded in the backing. The backing material may be cotton, e.g. poplin, silk, or other woven material, or a sheet material, e.g. a plastics film or a netting material and the strip 1 may be of acetal plastics material.
Patent GB-424952-A (GB)
Title: Self regulating apparatus for the operating pressure of a pneumatic fluid as a function of the position given to the manual controlling member with reaction of this pressure upon the said member
IPC: B60T15/08
Filed: 1933-05-30
Abstract: 424,952. Fluid - actuated valves. SERVO-FREIN DEWANDRE SOC. ANON., 68, Quai de Rome, Liege, Belgium. May 30, 1933, No. 15577. Void [Abridged as open to inspection under Sect. 91 of the Acts, Dec. 4, 1933]. [Class 135] [See also Group XXXIV] A pneumatic control device, more especially for air brakes comprises a distributer actuated by a manual control member 5 means of a floating lever 11 pivoted at 18 to a second lever 19 acted on by a spring 21, the floating lever 11 being acted on by the pressure of the controlled fluid applied to a piston 14. The pull applied by hand in stretching the spring is thus proportional to the fluid pressure. As shown, the supply of compressed air from the pipe 34 to the pipe 35 leading to the brake-cylinder is controlled by a valve 32 which, through its stem 31 and stop 31<a>, is actuated by clockwise movement of a bell-crank 28. Anticlockwise movement of the bell-crank allows the valve 32 to close and opens a relief valve 42 allowing air to exhaust to atmosphere from the passage 35 through passages 36-39. The bell-crank 28 is controlled by a rod 25 pivoted on a sleeve formed at the lower end of the floating lever 11, which has play at 16 with respect to the shaft 17 of the lever 19. If the fluid pressure rises too high while the hand-lever 5 is maintained in any fixed position, the pressure, acting on the piston 14, rocks the lever 11 about the point 10 and, owing to the play at 16, operates the rod 25, thus closing the valve 32 and opening the relief valve 42. If the pressure falls too low, the lever 11 is rotated in the opposite direction under the action of the spring 21 so as to open the valve 32 more widely.
Patent GB-1108002-A (GB)
Title: Improvements in or relating to machines for labelling objects and especially bottles
IPC: B65C9/10
Filed: 1965-04-13
Abstract: 1,108,002. Labelling machines. J. E. BEDIN. 13 April, 1965 [15 April, 1964], No. 15589/6.5. Heading B8F. [Also in Division B6] A machine for applying body and neck labels to bottles comprises a continuously rotating label distributer which moves at the same speed as the bottles are conveyed and applies the labels while they are held against rotation. The label distributer 15 has label suction units 23 and holding members 34, 341 with an interposed pressing member 35 mounted on constantly rotating chains so that the units 23 extract a label from a magazine 9 pass it over a gumming roller 8 to the application position. Bottles B fed by a conveyer 4 are spaced by a screw 5 and then held between the members 34, 34<SP>1</SP> and members 38, 38<SP>1</SP> of a second carriage 37 all of which are travelling at the same speed as the conveyer 4 so that the labels are accurately applied by the pressers 35. Application is completed by brushes 40, 40<SP>1</SP> the bottles being rotated as they enter and leave due to the conveyer belts 39 being longer than the belts 39<SP>1</SP> thus pressing the bottles against wads 41, 41<SP>1</SP>. A neck label applicator, also having a suction nozzle, is pivoted forward, to contact the gumming roll 8 and to effect application, by cams. To prevent gumming the nozzle when a label is absent the pivoting cam co-operates with a stud controlled by the reduction of pressure due to a label being held on the nozzle. The magazine 9 is pivoted about a shaft 14 towards the units 23 for label extraction by a cam 10 while the box is moved in the directions f 1, f 2  by a cam 11. A weight in a damping fluid holds a plate 57 against the labels but the pressure is released as the magazine reaches the extraction position.
Patent GB-558536-A (GB)
Title: Improvements in or relating to the production of hollow articles
IPC: B21D22/20
Filed: 1942-11-05
Abstract: 558,536. Cupping ; making hollow-ware. CARR, R. D., GIBLIN, A. A., and DALE, Ltd., J. Nov. 5, 1942, No. 15606. Addition to 550,148. [Classes 83 (ii) and 83 (iv)] Hollow articles which may be closed at one end are cupped in one or more stages from a block of tin, tin coated lead, lead, aluminium or zinc &c. coated on one or both sides with an alloy that melts at a temperature below the melting temperature of the metal of the blank. The alloy preferably consists of bismuth, tin and lead. A small proportion of cadmium may be added, as described in the parent Specification. The blanks are cut from a sheet of metal to which the alloy has been applied on one or both sides by rolling as described in the parent Specification. An article 1 to be fitted into a recess 5 and secured by soldering is provided at one end with an external flange 2 and is secured by heating the flange or appropriate part or parts.
Patent GB-980694-A (GB)
Title: Method and apparatus for forming mulching strips or the like
IPC: B26D1/03
Filed: 1961-05-01
Abstract: 980,694. Cutting-apparatus. INTERNATIONAL DEVELOPMENT CO. OF NATIONAL DISTILLERS & CHEMICAL CORPORATION S.A. May 1, 1961 [May 4, 1960], No. 15693/61. Heading B4B. A strip 2 of mulch material, e.g. film, thermoplastic material, treated paper or cloth-like material is formed with a plurality of V-shaped notches arranged in parallel rows by means of apparatus which comprises a rotatable idler roll 15 having secured to a flattened portion 16 thereof a T-bar element 17 which is provided with inclined slots 18 through which are arranged to pass inclined blades 53, 54 secured to the flattened portions 51b, 52b of collars 51, 52 mounted on a shaft 50. The shaft 50 is mounted in bearing blocks 40, 41 slidable in mounting blocks 20, 21 and can be raised or lowered by means of a screw 61. The shaft 50 is manually rotatable to move the blades to and from their operative position.
Patent GB-1423193-A (GB)
Title: Indicating means for the disposition of a rotatable-member
IPC: F02M19/01
Filed: 1973-04-02
Abstract: 1423193 Determining the disposition of a rotatable member photo-electrically EMAIL Ltd 2 April 1973 15761/73 Heading G1A The precise angular disposition of the choke vane 11 on shaft 12 of a carburetter is determined photo-electrically. Light from a lens tipped filament lamp 16 energized by a voltage regulator connected to a car battery Fig. 2 (not shown) is directed at a 70 degree arcuately shaped polarizing filter 18 mounted on a bracket 26 adapted to be securely but removably mounted on the choke vane shaft 12. Light transmitted by filter 18 passes through a fixed polarizing filter 19 to a photo-resistor receiver 20 also connected to the voltage regulator output terminals. Movement of filter 18 causes variation in the light transmitted to photo-cell 20 which in turn creates a variation in the read-out of a suitably scaled micro-ammeter or millivolt recorder connected to the photo-cell. Mounting 29 is provided so that fixed filter 19 may be rotated during calibration. A thermistor may be included in the circuit and positioned close to the photo-cell in insulating mounting holder 28 to provide a supply voltage to the lamp correction or a meter current correction.
Patent GB-693743-A (GB)
Title: Improvements in writing instruments
Inventor: DUFTON RICHARD
IPC: B43K24/08
Filed: 1949-06-14
Abstract: 693,743. Writing instruments. COMPANIA URUGUAYA DE FOMENTO INDUSTRIAL SOC. ANON. May 22, 1950. [June 14, 1949; Oct. 3, 1949] Nos. 15851/49 and 25415/49. Class 146 (iii). A writing instrument comprises a tubular casing having an opening at each end, a writing member mounted in the casing for projection to and retraction from a writing position in which a writing extremity of said member is exposed at one end of the casing, and projecting and retracting mechanism for effecting such movements of the writing member, the writing member being removable through the other or rear end of the casing leaving the mechanism in position. As applied to a ball-point pen, the pen 4 is slidably mounted in a casing 1, but is normally held in retracted position by a spring 13 interposed between a plunger 14 and a shoulder 12. The rear end of the plunger 14 is fixed within a sleeve 17 having a flange 18 carrying a skirt 19. The pen is retracted from the writing position, as shown in Fig. 1, by depression of an operating knob 23 screwed in the sleeve 17, the knob being pressed sufficiently to cause the sleeve 17 to force an expander ring 28 between flexible detents 21 carried by clip a 20, thus forcing the detents apart to allow a ring 16 on the plunger 14 to pass rearwardly through the detents when knob 23 is released and the plunger is retracted by the spring 13. After passage of the ring 16 the detents engage behind a second ring 15 to prevent further rearward movement of the plunger 14 and pen 4. The pen 4 may be removed from the casing by unscrewing the knob 23 and withdrawing the pen axially through the rear end of the casing, the knob having a reduced end 24 which is a push-fit in the open reservoir 9 of the pen for this purpose. The projecting mechanism is removed by detaching a pocket clip 27, by registering a hole 29 in the skirt 19 with one of a series of holes 30 in a nut 22 to permit the insertion of a tool to lock the nut and skirt together, and then by unscrewing the nut and skirt relatively to the casing 1. In a modification obviating the provision of holes 29, 30, the pocket clip has a solid head formed with a key fitting in a key way in the sleeve 17, the clip and skirt being secured by the knob 23 screwing into the sleeve 17. Specifications 673,747 and 609,817 are referred to. Reference has been directed by the Comptroller to Specification 641,595.
Patent GB-1019263-A (GB)
Title: Improvements in or relating to hydraulic ram assemblies
Inventor: MEATS WILLIAM HENRY
IPC: F15B15/16
Filed: 1962-04-26
Abstract: 1,019,263. Telescopic rams. TELEHOIST Ltd. April 17, 1963 [April 26, 1962], No. 15876/62. Heading F1P. An hydraulic ram assembly (Fig. not shown) comprises a ram 13, 15 slidable in a cylinder 14 and on a tubular return duct 30 sealed from the pressure side of the ram by O-rings 31 and having ports 32 which are uncovered as the ram reaches the end of its stroke, to relieve the pressure side of the ram through the inside of the return duct 30. The cylinder 14 is itself a secondary ram, slidable in a fixed cylinder 10 and hydraulic fluid is supplied through a duct 35 to act on the underside of both rams. When both rams are fully extended, hydraulic fluid passes from the pressure side to a reservoir 41 surrounding the fixed cylinder 10 through the ports 32, the return duct 30, a peripheral groove 39 in the end wall 16 of the secondary ram 14, and a now registered return port 40 in the fixed cylinder 10. The ram base 11 is formed with trunnions 12 and the ram 13, 15 is formed with a crosshead 26 for mounting the assembly.