baber/WOPTO huggingface dataset:
Patent GB-857014-A (GB)
Title: Improvements in or relating to time delay circuits embodying transistors
Inventor: JR NILES FRASER SCHUH
IPC: H02H3/027
Filed: 1958-09-03
Abstract: 857,014. Protective cut-out arrangements. WESTINGHOUSE ELECTRIC CORPORATION. Sept. 3, 1958, No. 28281/58. Class 38 (5). [Also in Group XL (c)] A protective circuit comprises a time delay network in which a capacitor charges through a resistor when a voltage exceeds a predetermined value, the capacitor voltage being used to control the current through a transistor and a rectifier being arranged in a discharge circuit for the capacitor to render the discharge circuit inoperative while the capacitor is charging. If the voltage from a three-phase rectifier network 21 exceeds a predetermined value a Zener diode 27 conducts and a capacitor 25 accordingly commences to charge through resistors 23 and 26. The charging continues until the voltage across the capacitor has reached a value such that a Zener diode 31 conducts and causes a transistor 32 to conduct. This causes a further transistor 33 to draw a current from an H.T. supply source 37 so operating the protective relay 35. The time delay provided by the circuit depends upon the value of the adjustable charging resistor 26 and also upon the amount by which the input voltage exceeds the breakdown voltage of the diode 27, so that short duration high voltages do not operate the relay. When the input voltage drops below the breakdown voltage of diode 27 the capacitor discharges rapidly through a diode 29 which then becomes conductive. It is stated that the relay could be replaced by a static bi-stable circuit and that resistor 26 may be replaced by a non- linear resistor such as a selenium rectifier to obtain a desired time voltage characteristic. The voltage at which charging commences could be determined by a relay instead of by Zener diode 27.
Patent GB-279856-A (GB)
Title: Process for the manufacture of condensation products from crude cresol and aliphatic ketones
IPC: C07C37/20
Filed: 1927-10-25
Abstract: 279,856. Schering-Kahlbaum Akt.- Ges., (formerly Chemische Fabrik auf Actien vorm. E. Schering). Oct. 26, 1926, [Convention date]. Addition to 273,684. Phenol-ketone condensation products.-Crude cresol, comprising a mixture of m- and pcresol, is condensed with aliphatic openchain ketones in the presence of gaseous hydrochloric acid at a temperature below 100‹ C. When acetone is the ketone component, the products may be separated by solution in ether, or the mixture may be hydrogenated to give isomeric thymols or menthols. According to the example, crude cresol and acetone are saturated with gaseous hydrochloric acid and heated together: after blowing off the excess cresol with steam, the residue is preferably distilled in vacuo and yields a resinous material. From an ether solution of the resin, the mcresol-acetone product crystalises out leaving the other product in solution. Specifications 273,685, 276,010 and 279,855 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) describes the condensation of crude cresol with ketone in general in the presence of a condensing agent. This subjectmatter does not appear in the Specification as accepted.
Patent GB-445290-A (GB)
Title: A process for the manufacture of mineral lubricating oils
IPC: C10M159/04
Filed: 1934-10-04
Abstract: In the refining of mineral lubricating-oils, the most easily removed and desirable hydrocarbon components (A) are restored to an oil which has been freed from both the easily removed components and the undesirable and less easily removed hydrocarbon components (B).  The A components consist mainly of hydrocarbons poor in hydrogen such as unsaturated or aromatic hydrocarbons and have good lubricating properties.  Examples: (1) The lubricating oil which may consist of a crude oil, a distillate or residue is first freed from the A components by treating with 10 per cent sulphuric acid at 25 DEG  C. for about 15 mins., and then the B components are removed by more intense refining by treating with concentrated sulphuric acid at 60--80 DEG  C., for an hour.  The A components are then regenerated from the acid tar by treating with caustic soda and if desired distilling the resulting oil in vacuo. The refined oil is then mixed with about 4 per cent of the distillate.  (2) A lubricating oil is diluted with benzine and extracted with liquid sulphur dioxide at 10 DEG  C.  The extract is freed from SO2 and benzine and a small amount is added to the oil which has been further treated with liquid SO2 at 10 DEG  C., without a diluent and then with concentrated sulphuric acid and finally neutralized with lime and decolorizing earth. The A components may also be removed by selective solvents such as propionitrile or acetonitrile or by activated decolorizing earth such as Terrana from which they are extracted by a mixture of benzol and ethyl alcohol.  In a modified process the A and B components may be removed in one step and the A components then separated from the mixture.  The first step may be effected by extraction with concentrated sulphuric acid, chlorsulphonic acid, nitrobenzene or dichlorethyl ether.  The extract is then treated with SO2 and a diluent at low temperature, or with propio- or acetonitrile, to extract the A components.  In the case of an acid extract the mixture is treated with caustic soda and a diluent such as benzine and the resulting oil treated with dilute sulphuric acid at 0 DEG  C.  The acid extract is again treated with caustic soda and the resulting A components thereby liberated.  U.S.A. Specifications 1,768,910, 1,868,333, 1,868,473, and 1,869,608 are referred to.
Patent GB-756569-A (GB)
Title: Improvements in pressure relief caps for internal combustion engine cooling systems
Inventor: TUFNELL DERRICK PERCIVAL
IPC: F01P11/02
Filed: 1953-10-15
Abstract: 756,569. Internal combustion engine cooling systems. GENERAL MOTORS, Ltd. Sept. 20, 1954 [Oct. 15, 1953], No. 28484/53. Class 64(3). A closure cap 10 for an internal-combustion engine cooling system comprises a valve member 12 carrying a resilient gasket 15 adapted to engage a seat in the filler spout (not shown) forming a primary valve, part of the resilient gasket coacting with an apertured portion 17 of the valve member 12 to form a secondary valve which is opened when the pressure within the filler spout falls below the external pressure. In the form shown, the valve member 12 is loosely carried on a stud 11 extending from the cap 10 and the peripheral part of the gasket 15 is urged by a flange 13 on the valve member 12 into engagement with the valve seating of the filler spout by a spring 19. The inner portion of the gasket normally closes the aperture 17 in the flange 13. An excessive rise in pressure in the filler spout above the pressure exerted by the spring 19 causes the valve member 12 together with the gasket to be lifted from its seating on the filler spout to relieve the pressure. On a reduction of pressure in the filler spout below the external (atmospheric) pressure, the secondary valve is opened by the action of the gasket 15 uncovering the aperture 17.
Patent GB-297093-A (GB)
Title: Electrical indicating instruments
IPC: G01R5/14
Filed: 1927-10-26
Abstract: 297,093. Weston Electrical Instrument Corporation, (Assignees of Weston, E. F.). Sept. 16, 1927, [Convention date]. Electromagnetic current meters; casings for instruments.-An ammeter of the iron vane type has the winding movable axially of the vane in order to adjust the instrument. The moving system consists of an iron vane 28 riveted to a light aluminium damper 29 and carried by a shaft 27. The moving system is mounted in a sector-shaped chamber 23, shown in section in Fig. 4, to one radial wall of which is attached the fixed iron vane 33. The chamber 23 is integral with a member 15 to which is attached, by screws 20, a rear member 16 carrying two parallel terminal posts 42, each provided with terminal nuts 50. Slidably mounted on the posts 42 is a triangular plate 43 of insulating material having a sector-shaped opening which clears the chamber 23. Integral with the plate 43 is a flange 44 carrying the sector-shaped winding 45, sleeves 46. These are slidably mounted on the posts 42, to which they are clamped in the desired position by screws 48 having spring lock wasners 49. The members 15, 16, which may be moulded of insulating material, provide a substantially air-tight chamber enclosing the winding 45 and preventing deposition of moisture on the inner surface of the glass 10. Specification 296,719 is referred to.
Patent GB-1487351-A (GB)
Title: Process for carrying out serological investigations according to the complement binding reaction and ready for use rapid test package for use in this process
IPC: B01L3/00
Filed: 1974-06-27
Abstract: 1487351 The complement binding reaction D I BARTOS 27 June 1974 [30 June 1973] 28498/74 Heading G1B The complement binding reaction is carried out by incubating complement in activated patient's serum with complement and at least one antigen or antibody not specific for erythrocytis, in the presence of ambocaptors specific for erythrocytes, and then determining the excess complement by incubation with erythrocytes. A test package for the reaction comprises the reactants other than serum and erythrocytes in solid forms, e.g. deep frozen or freeze dried in a container which can be used as a reaction vessel. The container may be sealed with a cap and may have the reagents stored separately therein. The package may also contain preserved test positive or test negative patient's serum stored separately from the other reactants.
Patent GB-437847-A (GB)
Title: Improvements in knitting machines
IPC: D04B15/54
Filed: 1934-10-05
Abstract: 437,847. Knitting-machines. ARCADIA HOSIERY CO., 5th Street, Lansdale, Pennsylvania, U.S.A.-(Assignees of Weisbecker, F. G. ; 753, Hazel Avenue, Glenside, Pennsylvania, U.S.A.) Oct. 5, 1934, No. 28589. Convention date, Aug. 7. [Class 74 (ii)] A knitting-machine yarn carrier consists of a bent metal strip having in the lower end a gradually deepening groove or slot 9 in which a coil spring 12 carrying a guide tube 13 is mounted. The construction permits the yarn carrier to yield to obstructions, such as misplaced sinkers, in either direction of travel. The yarn carrier may itself be springy as at the twisted part 16 Fig. 4 or it may be jointed at 22 Fig. 6, and controlled by springs 23. The improved carriers may be used when making plated and " split " work.
Patent GB-292404-A (GB)
Title: Improvements in heat exchangers for use in catalytic apparatus
IPC: B01J8/06
Filed: 1927-10-27
Abstract: 292,404. Synthetic Ammonia & Nitrates, Ltd., and Bramwell, T. H. Oct. 27, 1927. Addition to 241,817. Catalytic apparatus.- In the heat.exchanging arrangement of the parent Specification which comprises one or more spirals of a pair of coaxial tubes, the inner members of these tubes are replaced by a number of tubes through which the gas flows in parallel. Three or seven inner tubes may conveniently be employed.
Patent GB-652020-A (GB)
Title: Improvements in yarn twisting machines
IPC: D01H1/42
Filed: 1948-11-04
Abstract: 652,020. Textile twisting spindles; antiballooning arrangements. SCRAGG, Ltd., S. & E., and SCRAGG, F. Nov. 4, 1948. No. 28628. [Class 120(ii)] A textile twisting machine of the kind in which yarn passes through a hollow belt driven spindle and over the periphery of a disc or spreader to a yarn guide disposed co-axially with the spindle has an antiballooning ring co-axial with the spindle and mounted so that it remains co-axial when the spindle is moved into and out of its operative position. The yarn supply bobbin is carried by a weighted casing B freely mounted on the spindle A driven by a belt H. The spindle A is mounted on an arm D pivoted to an arm E integral with an arm F carrying a member K, to which the ring J and a thread guide S are pivoted. Member K is slidable on arm F and is connected by a link L to a slide M supporting a block N, provided with a cam face N', which engages with one end of a rod O, the other end of which engages the pivoted arm D and is so arranged that when slide M is slid towards the guide S, the driving pulley G of spindle A is moved out of engagement with the belt H and member K along with ring J are raised simultaneously with spindle A by the movement of pins P in slots Q. Where the belt H drives the spindle A from above the pulley G, the spindle A and ring J are arranged to be simultaneously lowered.
Patent GB-873594-A (GB)
Title: Cluster arrangement of fuel elements in an atomic reactor
Inventor: STOHR JACQUES ANDRE
IPC: G21C3/32
Filed: 1959-08-21
Abstract: 873,594. Nuclear fuel elements. COMMISSARIAT A L'ENERGIE ATOMIQUE. Aug. 21, 1959 [Aug.29, 1958], No. 28635/59. Class 39(4). Clusters of sheathed fuel rods are held together by groups of short tubes such as 12 encircled by a metal belt 10. The fuel rods lie in the spaces between the tubes, which engage restrictions in the rods. The tubes and belt are spot welded together, and are of stainless steel. The fuel may be uranium oxide or carbide.
Patent GB-173878-A (GB)
Title: Improvements in or relating to electrical contact makers for use with the steering wheels of motor vehicles
IPC: B60Q5/00
Filed: 1920-10-09
Abstract: 173,878. Scott, J. L. Oct. 9, 1920- Addition to 134,973. Controlling handles or levers associated with hand steering-devices.-Steering-wheels of motor vehicles associated with electric switches or contact makers of the type described in the parent Specification are arranged with the smaller wheel c carried by yielding supports f on the spokes b of the steering wheel a, each support f consisting of a contact maker or switch, adapted for control of electric horns &c., the circuit of which is closed by depression of the wheel e.
Patent GB-1138926-A (GB)
Title: Rifle grenade
Inventor: BATOU BORIS
IPC: F42B30/04
Filed: 1967-06-21
Abstract: 1,138,926. Grenades. ANSTALT FUR DIE ENTWICKLUNG VON ERFINDUNGEN UND GEWERBLICHEN ANWENDUNGEN ENERGA. 21 June, 1967 [29 Aug., 1966], No. 28729/67. Heading F3A. A rifle grenade comprises a spherical steel body 2, a tail rod 3 connected thereto by a screw 8, a tubular nipple 11 carrying a circular plate 1a of the same diameter as the body, a ballistic cap 1 enclosing a fuse assembly 13 disposed on the plate, and a casing 10 having a cylindrical part supported against the plate 1a and the body 2, to form a closed peripheral space, and a frustoconical part extending to the tail rod. A booster 5 is disposed in a cake of explosive 6 in contact with the principal explosive 7. A plug 12 keeps the fuze assembly safe until the grenade is launched, whereupon it falls into the peripheral space to release the fuze.
Patent GB-201461-A (GB)
Title: Improvements in or relating to wipers for use with wind screens on motor vehicles
IPC: B60S1/20
Filed: 1922-10-23
Abstract: 201,461. Homer, S. J. Oct. 23, 1922. Windows and the like, cleaning. - A tubular casing 3 clamped by a bracket 8 to the edge of a motor-vehicle windscreen carries slidably within it a hollow cylinder 1 having rack teeth 2 along one side and the inner wire 5 of a Bowden cable anchored to its end 4. A spring 7 is fitted between the cylinder 1 and a cap 6 closing the tubular casing, to which cap the outer member of the Bowden cable is fixed, and the control mechanism is arranged on the steering wheel. A toothed wheel 11 mounted on the bracket engages the rack through an aperture in the casing 3 and has a projecting lug 12 to which is pivoted an arm 13 with a tailpiece 15 pressed upwards by a spiral spring 16 thus keeping the wiper 19, which is pivoted to the arm at 18, pressed upon the glass.
Patent GB-1196728-A (GB)
Title: Process of Preparing Diethyl Substituted-Anilinomethylenemalonates.
Inventor: HARRIS NICHOLAS D
IPC: F16B2/24
Filed: 1969-06-06
Abstract: 1,196,728. Diethyl substituted-anilinomethylenemalonates. NORWICH PHARMACAL CO. 6 June, 1969 [22 July, 1968], No. 28862/69. Heading C2C. Diethyl 3,4 - dialkoxyanilinemethylenemalonates are prepared in reacting diethyl dimethylamine methylene malonate with a 3,4- dialkoxy aniline in the presence of an acid, e.g. acetic acid. In an example the dimethoxy, diethoxy and diisobutoxy compounds are prepared.
Patent GB-159293-A (GB)
Title: Improvements relating to clutch-mechanism for stopping and restarting rotary shafts
IPC: F16D67/02
Filed: 1919-11-21
Abstract: 159,293. Baker, W. E., and Hardy, A. Nov. 21, 1919. Stopping machinery by movement of guards or protectors. - Stop-mechanism for line-shafting &c. comprises a frame 2, 3 swing- ing on a shaft 1 vertically above the line-shaft &c. C and carrying an arm 4 normally engaged by a stop X on a frame V, which is pivoted at Wand is connected by links U to a brake-shoe H guided by bars K and pressed by springs L. A driving-pulley E, loose on the shaft C, carries a cone-clutch member A engaged by a cone F integral with a brake-drum G, the clutch being held in engagement by, a spring P bearing against a yoke N carried by the brake-shoe H. A sleeve-extension of the cone F is coupled to the driven shaft C 'by studs F', or helical grooves, engaging helical grooves, or studs, on a collar C' secured to the shaft, whereby any slip increases the engaging-force. By cords attached to the frame 3, or by an obstruction engaging therewith, the arm 4 is displaced from the stop X, allowing engagement under the springs L of the parts H, G, the consequent retardation of the part F causing the studs and grooves to disengage the clutch. Continued movement of the shoe H completely withdraws the cone F and brings the shaft C to rest. The mechanism is reset by a screwed rod Z which acts on the frame V to replace the stop X under the arm 4. According to the Provisional Specification, the brake is of the band type and the clutch may be of the expansion type, actuated by levers pivoted on the collar C<1> and engaged by the brake-drum, which is connected to the clutch by tension-springs.
Patent GB-1400257-A (GB)
Title: Mixing and kneading apparatus more particularly for chocolate mass
IPC: B01F7/04
Filed: 1972-06-21
Abstract: 1400257 Mixing apparatus KOMBINAT NAGEMA VEB 21 June 1972 29047/72 Heading B1C [Also in Division G1] Mixing apparatus for chocolate mass comprises a horizontal cylinder 4 having a shaft 7 carrying mixing tools 8, 12, 13 and divided into two interconnected chambers 10, 11 by a transverse partition 9. The cylinder rests, upon a pivot 15 and a load cell 16. Liquid and solid ingredients are weighed by weighers 1, 2, 3 and supplied simultaneously as batches equal in weight and at equal time intervals. The chamber 11 accommodates about 80% of a batch and a rotating mass is formed therein which prevents material in chamber 10 reaching the outlet before being fully mixed. The outlet 6 is initially closed by slide valve 14; after a predetermined time it is opened to a certain position at the time of loading the second batch. Thereafter one instantaneous measurement of the load on the load cell 16 is made shortly before the time of introduction of each batch, and used to actuate a motor 18 to adjust the slide 14 according to whether the measured load is greater or less than a pre-determined amount. The slide will ultimately assume a position providing a steady continuous discharge of mixed material. The throughput may be varied by altering the loading time between batches.
Patent GB-336390-A (GB)
Title: Improvements in or relating to sealing tools
IPC: B65B13/34
Filed: 1929-09-25
Abstract: 336,390. Signode Steel Strapping Co., (Assignees of Edwards, R. T.). July 3, 1929, [Convention date]. Jointing by stamping. -A sealing- tool for deforming the overlapped ends of strapping bands comprises a pair of handles 10 pivoted on bolts 12 between a pair of side plates 13 and having arms 11 forked at 17 and pivotally connected at 19 to a pair of links 18 carrying a transverse pin 20 which is guided in slots in the side plates and actuates toggle links 24 connected at 32 to jaw members 30 provided with deforming pins 38 fitted in the jaws 31, the jaw members being pivoted at 34 to a pressure block 33 coacting with the jaws in the deformation of the strapping band. When the jaws are closed the links 24 abut the pressure block 33 and the cross pin 20 contacts with the ends of the slots in the side plates to prevent excessive strain on the working parts. In tha modification shown in Fig. 13 one of the handles 51 is rigid with the tool head 46 and the links 60 actuating the toggle links 66 which operate the jaw members 70 are connected at 61 to arms 59 on the pivoted handle 53. Specification 111,919, [Class 94 (i), Packing &c.], is referred to.
Patent GB-630692-A (GB)
Title: Improvements in or relating to a superheterodyne receiver provided with automatic frequency-control
IPC: H03J7/04
Filed: 1946-10-02
Abstract: 630,692. Automatic tuning correction. PHILIPS LAMPS, Ltd. Oct. 2, 1946, No. 29422. Convention date, April 12. 1943. Addition to 616,358. [Class 40 (v)] The parent Specification describes a superheterodyne receiver comprising a filter sharply tuned to the intermediate carrier frequency, the tuning of the filter being influenced by an automatic frequency control arrangement so as to maintain agreement between the intermediate frequency and the tuning of the filter, and in which the filter circuit comprises one or more oscillatory circuits with reduced damping and also forms part of the frequency-dependent network. This Specification describes a modification of that arrangement, wherein the circuit for supplying the control voltage comprises at least two uncontrolled oscillatory circuits, these having the same quality so that they introduce no relative phase displacement between the component voltages used to provide the control voltage. In the Figure, the signal from intermediate frequency amplifier 1 is applied via tuned circuit 2 to the sharplytuned filter circuit 3. The damping of filter circuit 3 is reduced by means of feed-back from amplifying valve 4. Negative feed-back is provided by resistance 8, this resistance being so arranged that it does not damp circuit 3. The output from valve 4 is applied through tuned circuit 9 to diode detector 11 and thence to low-frequency amplifiers (not shown). Tuned circuit 2 is also coupled to tuned circuit 12, which with diodes 13 and 14 and in conjunction with the voltage applied from coil 16 via phaseadjusting network 27, constitutes a frequency discriminator circuit which produces a control voltage across resistance 15. This control voltage is applied to valve 17, thereby controlling the direct current through coil 18, which has the same iron core as coil 6, the latter forming part of tuned circuit 3. Due to the characteristics of the iron core the tuning of circuit 3 may thus be modified within certain limits, so that it is maintained in agreement with the intermediate frequency. The circuits 9 and 12 are constructed so that their Q factors are equal for the frequency concerned, and these circuits do not cause any relative phase displacement between the two voltages applied to the frequency discriminator circuit 12, whereby the control voltage then depends substantially solely on the phase displacement introduced by circuit 3.