baber/WOPTO huggingface dataset:
Patent GB-918531-A (GB)
Title: Improvements relating to the thermostatic control of ovens or other heated enclosures
Inventor: PANISSET DENIS SYDNEY
IPC: H05B1/02
Filed: 1958-04-10
Abstract: 918,531. Temperature-responsive actuating elements. SIMPLEX ELECTRIC CO. Ltd. April 10, 1959 [April 10, 1958], No. 11330/58. Class 64 (2). [Also in Group XXXV] The heat supply to a cooking oven is controlled by an inside thermostat having two parts one of which is located towards the rear of the oven and has a reduced sensitivity relative to the other part which is located nearer the front door of the oven. Fig. 1 shows a rod and tube differential type thermostat 25 mounted at the top of an oven in the path of convection currents from behind a guard-plate 20 of electric heating elements (not shown). A suitably dimensioned steel shading tube 29 surrounding and spaced from a portion of the thermostat near the back of the oven renders the thermostat less responsive to changes of temperature due to the heating elements. The following modifications are referred to: (a) use of a glass shading tube; (b) making the thermostat tube of non-uniform thickness; (c) introducing lagging between a portion of the thermostat tube and red; (d) use of a rod and tube thermostat, portions of the tube of which have different coefficients of expansion. Specifications 785,057 and 873,839 are referred to.
Patent GB-768524-A (GB)
Title: Improvements in or relating to the production of heparin
IPC: C08B37/10
Filed: 1955-04-20
Abstract: A process for the production of heparin having improved clarifying activity and decreased anticoagulant activity comprises treating heparin having both clarifying and anticoagulant, activity with an N, N1 - di - a  - alkyl - benzyl ethylenediamine derivative e.g. N, N1-di-a -methyl-benzylethylenediamine, N, N1 - di - a  - ethylbenzylethylenediamine, N, N1 - di - a  - propylbenzylethylenediamine, separating the water-soluble salt from the water-insoluble salt and liberating the heparin from the water-soluble salt.  Heparin may be precipitated from an aqueous solution of the water-soluble salt by addition of a suitable acid e.g. acetic acid, or the solution may be treated with a base e.g. benzidine, the precipitate separated and hydrolysed with caustic soda to precipitate the base prior to precipitating the heparin from the separated mother liquor by addition of an acid e.g. acetic acid.
Patent GB-114841-A (GB)
IPC: H05B7/10
Abstract: 114,841. Arendal Smelteverk. April 13, 1917, [Convention date]. Furnace details.-An electrode-holder comprises bent arms 5, 6 embracing the electrode 7 and crossing so that if their ends 8 are forced apart, the electrode is clamped. As shown, the ends of the arms engage eccentric grooves in a shaft 9; wedges may, however, be employed. The arms of a pair may be separately and adjustably secured by screws 10 in a block 2 to which the conductors 1 are fastened.
Patent GB-251987-A (GB)
Title: Method of obtaining synchronism between cinematographic performance and sound transmission
IPC: G03B31/02
Filed: 1926-05-03
Abstract: 251,987. Stock, J. J. F. May 6, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Combined working of sound-reproducing apparatus with kinematographs.-Relates to the synchronization with music, speech, &c. transmitted over lines or by wireless from a controlling station. of kinematographs operated at one or more receiving stations. In accordance with the invention, at the controlling station a "master" kinematograph film is projected which is identical with the "show" films projected at the various receiving stations, and the operation of all the kinematographs is synchronized by starting the machines simultaneously and running them at the same constant speed. The controlling or " master " film at the transmitting station is projected synchronously with the music or other sounds produced at and transmitted from that station, e.g. by synchronizing the kinematograph with a phonograph or like instrument, or in other ways as described below. Then, since the "master" film is running in synchronism with the " show films," the music &c. reproduced at the receiving stations will also be synchronized with the pictures shown. When choral or band music accompanies the pictures, the "master" film may exhibit photographs of a person or of a mechanism beating time for the music. Alternatively, an auxiliary film running synchronously with the master film may show written words or music for the guidance of a performer; or a person using head-telephones may listen to speech &c. reproduced by apparatus operating in accordance with the "master" film, and may immediately repeat it before a microphone. for transmission to the receiving stations. Clocks are used at all the various stations to time the speed of the films, the clocks being set in unison in accordance with a time signal set from the transmitting station. The projectors may all be started together automatically at a predetermined instant. To facilitate controlling the speed of the machines, tho films may bear numbers at regular intervals, each number indicating, when it appears on the screen, the period of time that should have elapsed after the start. As an alternative, a seconds clock may be photographed on the film.
Patent GB-312767-A (GB)
Title: Improvements in wristlet watches
IPC: G04B45/00
Filed: 1928-04-20
Abstract: 312,767. Schierwater, C. A. April 20, 1928. Watch cases, combined with medallions or initial plates.-A medallion or plate 4 upon whicli are engraved initials, or a monogram, is accommodated in a recess in the back 1 of a wrist watch. This recess is a sunken one or is formed by an upstanding ridge 3. The plate 4 may snap into position or it may have tongues 5 which pass through holes 6 in the case and are bent back within radial recesses 7.
Patent GB-1575878-A (GB)
Title: Electricity distribution column
IPC: H02G3/00
Filed: 1978-03-23
Abstract: An electricity distribution column for administrative premises is made up of a U-shaped section whose top does not touch the ceiling and receives a tubular extension going up to the latter and receiving the connecting conductors, the ends of the branches of the U serving as a guide for a flexible cover inserted either from the top or the bottom.
Patent GB-118082-A (GB)
IPC: E01B3/16
Abstract: 118,082. Kruse, T. H. Aug. 10, 1917, [Convention dale]. Sleepers, metal, and securing rails to.-Sleepers are formed with series of grooves which converge to rows of apexes along the centre of the under surface as shown in Fig. 5, and along the transverse medial line as shown in Fig. 2. The sleepers may be hollow metal tubes as shown. Rails are secured to the sleepers by jaws 5 having lugs 8, which pass through holes, or through which cotters 11 are passed in a direction longitudinal to the sleepers.
Patent GB-794546-A (GB)
Title: Improvements in or relating to food tins
IPC: A47J36/30
Filed: 1956-04-18
Abstract: 794,546. Food tin with integral heating means. EDER, A., POWELSON, S. V. N., and KUHN, E., [trading as ETABLISSEMENT EPOK.]. April 18, 1956 [April 20, 1955], No. 11853/56. Class 28 (1). [Also in Group XIII] A container 3 for a cartridge 4 containing a composition combustible without a supply of air is connected to the cover 1 of a food can 2. The mechanism for igniting the cartridge may take various forms and is arranged on operation to uncover or provide a steam vent such as 8. A thin sheet parallel to the cover may be fitted below the vent to prevent escape of the contents of the can.
Patent GB-640123-A (GB)
Title: Improvements in and relating to the production of artificial filaments
IPC: D01D5/20
Filed: 1948-04-30
Abstract: <PICT:0640123/IV (a)/1> The denier of artificial filaments is varied during production by connecting an auxiliary spinning pump 6, Fig. 1, in parallel with the main line spinning pump 3 supplying filament-forming material to the usual jet 4, the main pump being driven at constant speed and the auxiliary pump being driven intermittently under electrical controls which may be arranged to produce predetermined, in accordance with a repeating pattern, or random slubbing characteristics.  As shown, several sets of main and auxiliary pumps 3, 6 are used to supply respective jets 4, the auxiliary pumps 6 being driven through worm gearing 8, 9 from a shaft 7, driven by a continuously running motor 21, through a dog or other clutch 14 adapted to be moved to the "drive" position by energization of a solenoid 27 impulsed under electronic control.  With this form of the invention slub length can be varied as well as slub frequency. Where the output of the electronic unit is not sufficient to operate the clutch, the output may be used to control a relay unit having sufficient power to do so.  The shaft 7 may, alternatively, be advanced by a ratchet-and-pawl mechanism actuated by the solenoid, Fig. 2 (not shown).  The electronic control unit may impulse a number of solenoids each of which controls a number of clutches 14. Electronic units capable of producing a yarn for weaving a fabric having either a regularly or a randomly figured appearance are described.  Specification 579,069 is referred to.
Patent GB-951671-A (GB)
Title: Concentrated silica sols
IPC: C01B33/148
Filed: 1961-04-04
Abstract: The invention comprises a concentrated and stable silica sol having an SiO2 content of from 48% to 52%, a pH of from 8.7 to 9.5, a particle size of from 15 to 30 millimicrons, and an Sio2 to Na2O ratio by weight of from 150: 1 to 350: 1. The sol is obtained by boiling a sol having an SiO2 content of from 28% to 38%, a particle size of from 13 to 50 millimicrons, a pH of from 8.7 to 9.5 and an SiO2 to Na2O ratio by weight of from 150: 1 to 350: 1, wherein a constant volume is maintained by continuous addition of such a sol until the desired concentration is reached.  U.S.A. Specifications 1,132,394, 2,244,325, 2,244,365, 2,574,902 and Canadian Specification 558,667 are referred to.
Patent GB-651763-A (GB)
Title: Improvements relating to cycle and like frames and the manufacture thereof
IPC: B62K19/18
Filed: 1949-04-30
Abstract: 651,763. Cycle frame details. ENFIELD CYCLE CO., Ltd., and GUISE, H. T. April 30, 1949, No. 11960/48. [ Class 136 (iii)] [Also in Group XXII] In making cycle and like frames a light tube is internally reinforced for electric resistance butt welding at one end to a junction member made in halves welded together. The tube is reinforced by driving in and/or spot or stitch welding a liner to increase the thickness to equal that of the junction member. The junction member may be a steering head tube g to which the reinforced tube ends a, i are welded or a front fork, saddle pillar &c.
Patent GB-978391-A (GB)
Title: Fluid servo-system
IPC: F15B9/16
Filed: 1963-03-26
Abstract: 978,391. Fluid-pressure servomotor control systems. BENDIX CORPORATION. March 26, 1963 [April 2, 1962], No. 11969/63. Heading G3P. A servo system comprises a piston valve member 16 having lands 18, 20 and 22, the lands 18, 20 controlling the supply and exhaust of fluid to a piston and cylinder device 70, 72. A fluid pressure supply 50 is connected to the space 26 between the lands 18, 20 and a passage 56, having an orifice 58 connects the space 26 to a cylindrical bore 32. Flow from the bore 32 to exhaust and the left hand side of the piston through an orifice 60 is controlled by a valve member 34 having a sloping edge 36 and restrained from rotational movement by a rod 40. The valve 34 also has parts 46 connecting the space 30 on the right hand side of the piston to the bore 32. An input signal applied to the valve 34 closes or opens the orifice 60 to move the piston valve 16 to the right or left and supply and exhaust fluid to the cylinder 72. Movement of the piston 70 rotates a member 80, through a cable 78, which causes rotation of the piston valve 16 thus varying the degree of registry of the orifice 60 which causes the piston valve to move in the opposite direction to close the supply and exhaust to the cylinder 72. The orifice 60 may be circular or rectangular. The input signal may rotate thevalve 34.
Patent GB-259262-A (GB)
Title: Improvements in means for obtaining reduced voltage electric supply from a unidirectional current source for wireless systems & other purposes
IPC: H02M1/14
Filed: 1925-05-08
Abstract: 259,262. Blake, G. G., and Wood, L. Rusell-. May 8, 1925. Converting pulsating currents into steady continuous currents.-Current at a reduced voltage for operating thermionic valves or for other purposes is obtained from a direct or rectified-alternating current supply by arrangements shown in Fig. 2. The input terminals A, B are connected through radio-frequency chokes C, C<1> and iron-cored chokes K,K<1> to a potentiometer T, from which current may be taken to one or several filament circuits direct or through an independent rheostat R. The " earth '' terminal of a wireless apparatus is disconnected and a connection made to earth through a condenser X from either or both sides of the potentiometer. Alternatively a condenser may be placed in the usual earth connection. Current for the plate circuits may be taken from a second potentiometer Q, supplied through other radio-frequency chokes C, C<1> and one or both iron-cored chokes K. An iron-cored choke Z is placed in the lead from the potentiometer as shown. A condenser J is connected across the output terminals. A condenser M is connected between " low-tension " and " hightension " negative terminals to enable the combination to be used with sets in which the positive low-tension and negative high-tension terminals are connected together. A small safety lamp or fuse L<1> is connected in the " high-tension " supply. L is an indicating lamp.
Patent GB-592467-A (GB)
Title: Systems for supplying electric current impulses suitable for welding
IPC: B23K11/24
Filed: 1945-05-14
Abstract: 592,467. Control systems for resistance welding. ENGLISH ELECTRIC CO., Ltd., CHADWICK, G., and SALTHOUSE, J. E. May 14, 1945, No. 12060. Addition to 582,335. [Class 38 (iv)] In capacitor discharge welding apparatus of the kind in which condensers 1, 2 are discharged in rapid succession and in opposite senses through the primary winding 3a of the welding transformer by separate trigger-controlled discharge tubes 6, 7, premature discharge of condenser 2 is prevented by means responsive to the voltage in the circuit of condenser 1 and functioning to hold off tube 7 until tube 6 has deionized. The means may comprise a relay valve 10, the anode circuit of which controls the firing of tube 7 from condenser 2 and the grid circuit of which is shunted across tube 6 in series with a bias source 12. The condensers are charged over circuits, not shown, which are preferably such that condenser 1 charges more quickly than, or commences charging earlier than, condenser 2 so as to hold off valve 10 whilst condenser 2 is charging. A weld is initiated by closing switch 8 which applies positive bias to the trigger electrode of tube 6 ; the tube then fires and allows condenser 1 to discharge into the welding transformer. Conduction of relay valve 10 and consequent firing of tube 7 to discharge condenser 2 follow when the voltage across tube 6 has fallen to the extinction potential of the tube, this voltage, in series with the opposing voltage desired from source 12, being insufficient to hold off valve relay 10. The Provisional Specification refers to Specification 580,854,
Patent GB-977632-A (GB)
Title: Improvements in and means for use in the storage of articles such as internal combustion engines
IPC: B65G1/02
Filed: 1960-04-05
Abstract: 977,632. Storage racks. T. J. CLARKE. Jan. 10, 1961 [April 5, 1960], No 12078/60 Heading A4H. [Also in Division B8] In a storage system for articles, such as internal gines, each article to be stored is  mounted on-a cradle provide with trunnions 7, the cradle is then picked up by a hand truck B, Fig. 1, and transported to the vicinity of storage racks rights 8 provide The cradle is then raised by an  overhead hoist (not shown) and  deposited on a pair of the hooks 9. In a modification, Fig. 4, racks for the reception of prise pairs of ang mounted on fran secured to four travelling hoist 2 a cross-member 26 connecting stays 27. Specification 977,633 is referred to.
Patent GB-552146-A (GB)
Title: Improvements in or relating to the manufacture of sulphuric acid
IPC: C01B17/76
Filed: 1941-09-19
Abstract: 552,146. Sulphuric acid. IMPERIAL CHEMICAL INDUSTRIES, Ltd. (Du Pont de Nemours & Co., E. I.). Sept. 19, No. 12123. [Class 1 (ii)] Burner gas after passage through a dust precipitator B and dry cooler C is cooled and humidified by scrubbing with acid in a tower 1, treatment with a water spray 5 and passage through a coke filter 6, and is then dried by treatment with stronger acid in countercurrent in a series of towers 8, 13, 14 before passing to the converter D. The diluted acid leaving tower 2 is used to supply the cooling tower 1 in which it is concentrated. It may then be returned by pipe 11 to tower 8, or alternatively it may be passed to the absorber F by line 23, in which case tower 8 is wholly supplied from the next tower 13.
Patent GB-281218-A (GB)
Title: Manufacture of improved catalysts
IPC: B01J23/72
Filed: 1927-05-05
Abstract: 281,218. I. G. Farbenindustrie Akt. Ges. Nov. 27, 1926, [Convention date]. Amino compounds.-Metallic catalysts for use in the reduction of azoxy-, azo-, and hydrazocompounds to the corresponding amines are prepared by separating the metal in a finely subdivided form from aqueous solutions of its salts by means of a more electropositive metal: mixtures of metals also may be so prepared, and the preparation may be performed in the presence of a non-metallic carrier, such as kieselguhr, silica, gel. or charcoal. The solution from which the catalyst is separated may be alkaline, in which event the oxide of the more electropositive element is deposited also and may serve to activate the catalyst : the solution may, however, be neutral or acid. In one example, zinc dust is introduced gradually into a suspension of kieselguhr in an aqueous solution of nickel chloride, and in another example, aluminium powder is introduced gradually into a suspension of hieselguhr in an aqueous solution containing nickel chloride, ammonium chloride, and ammonia. The products may be used directly to effect the reductions in aqueous on alcoholic solution, or, thev mav be dried before use, either in vacuo or in a current of hydrogen.
Patent GB-1038984-A (GB)
Title: Trenching apparatus
IPC: E02F5/02
Filed: 1963-03-27
Abstract: 1,038,984. Trench-excavating machines. A. F. NICKOLAEV, S. V. ROUKAVISHNIKOR, I. V. FEDIN, and E. P. ARTEMENKO. March 27, 1963, No. 12162/63. Heading E1F. In a trench excavator there is a common drive operating through gearing a soil-comminuting device, a conveyer for lifting comminuted material out of a trench being dug by the device, and a further conveyer for receiving material from the first conveyer and carrying it clear of the trench. The device is preferably a peripherally pick-armed, vertically disposed cutter drum to the lower end of which is secured a cutter disc. The device and conveyers are mounted on a vertically swingable, tractorsupported gear head.
Patent GB-1517874-A (GB)
Title: Centrifuge apparatus
IPC: G01N27/06
Filed: 1976-03-26
Abstract: 1517874 Centrifuge for separating blood UNITED STATES ENERGY RESEARCH & DEVELOPMENT ADMINISTRATION 26 March 1976 [25 April 1975] 12183/76 Heading B2P In a method of operating a continuous flow centrifuge for separating whole blood into red cells, white cells and plasma the hematocrit (i.e. the ratio of the total volume of red cells, white cells and platelets in blood to the total blood volume) of the whole blood fed to the centrifuge is continuously measured and is maintained at a selected value. The centrifuge, which may be of the type described in Specification 1506807, has a rotor equipped with a feed line for whole blood, extraction lines for the red cell, white cell and plasma fractions respectively and a recycle line connecting the plasma extraction line to the feed line, variable speed pumps being located in the feed, plasma and recycle lines. The electrical conductivities of the entrant whole blood and the plasma are measured by conductivity probes disposed in their respective lines and compared by means of a differential comparator to provide a signal to control the variable speed plasma recycle pump enabling the feed hematocrit to be maintained at the selected value. Alternatively, the feed hematocrit is maintained at the selected value by continuously adding red cell-rich plasma from the red cell extraction line to the feed line. In addition, the method of operation may include the further step of measuring the electrical conductivity of the red blood fraction and comparing it with that of the plasma fraction to produce a signal to control the speed of the feed pump and hence the feed rate of the whole blood to maintain the hematocrit of the extracted red cell fraction at a selected value. A diagram of the controlling circuit is given.
Patent GB-1146325-A (GB)
Title: Yarns
Inventor: SPENCER-SMITH JOHN LIGHTFOOT
IPC: D01G1/10
Filed: 1965-03-23
Abstract: 1,146,325. Bulky yarns. LINEN INDUSTRY RESEARCH ASSOCIATION. 22 March, 1966 [23 March, 1965], No. 12189/65. Headings D1F and D1W. A bulky yarn is produced from fibres having low tenacities-for example polyvinyl chloride fibres-by converting a tow into a sliver which is composed of fibres of varying length and which is heat relaxed, drafting the sliver using apparatus in which the reach is less than the longest fibres so that the longest fibres are stretched, forming the sliver into a yarn and subjecting the yarn to a shrinkage treatmentfor example a steam treatment-to shrink the stretched fibres and render the yarn bulky. A stretched tow may be cut into fibres of varying length, or a tow may be variably stretchedas in Specification 1,042,581-and cut into fibres of equal length, with the heat relaxing of the sliver producing fibres of unequal length. Yarns may be plied before a steam shrinkage treatment.
Patent GB-611153-A (GB)
Title: Improvements in or relating to sound absorbing building blocks
IPC: E04C1/41
Filed: 1946-04-23
Abstract: 611,153. Building - blocks. NEELANDS, A. R., and BYTHWAY, A. S. April 23, 1946, No. 12276. [Class 87(i)] A building - block is formed with central unfilled apertures B, B<1> and small lateral apertures D packed with mineral wool. The ends of the block have a central flat portion E and oblique side portions F.