baber/WOPTO huggingface dataset:
Patent GB-165227-A (GB)
Title: Improvements in and relating to protective devices for electric circuits and apparatus
IPC: H02H3/093
Filed: 1920-03-25
Abstract: 165,227. British Thomson - Houston Co., Ltd., (General Electric Co.). March 25, 1920. Electromagnetic switches.-Relays of the induction type are provided with auxiliary magnetic devices which assist the induction disc to complete its responsive movement. In one form of apparatus, the induction disc 1 is normally held at rest against a stop 7 by the preponderating effect of a torque-producing magnet 11 over a magnet 8, the magnet windings 9, 12 being in series and fed from a transformer 19. When the current increases to a designed limit, a movable magnetic piece 16 is attracted by the upper limb of the magnet 11 so as to shunt most of the flux away from the induction disc. Thereupon the torque due to the magnet 8 preponderates and the disc turns, completing the relay circuit between contacts 3, 4. In another form the magnet tending to produce the response is provided with a magnetic piece which automatically closes an air gap and thus strengthens the flux suffieiently to turn the induction disc.
Patent GB-963219-A (GB)
Title: Improvements in and relating to sound recording and reproducing apparatus
Inventor: MAMMATT RONALD GEORGE
IPC: G11B5/187
Filed: 1961-03-10
Abstract: 963,219. Magnetic recording &c. heads. COSMOCORD Ltd. March 12, 1962 [March 10, 1961], No. 8835/61. Heading G5R. To avoid cut-off on playback, of recorded sound signals, whose wavelength is related to the head gap-length, a head has a transducing gap limited by edges not parallel to one another. Alternative gap-forms are described.
Patent GB-580268-A (GB)
Title: Improved control system for electrically-operated valves, penstocks, sluice gates and the like
IPC: E02B7/36
Filed: 1944-05-10
Abstract: 580,268. Control of motors. BLAKEBOROUGH, R. A., and BROTHERTON, C. May 10, 1944, No. 8876. [Class 38 (iii)] Travelling to Pre - determined limits.-In a control system for an electric motor operating a valve or like mechanism, a timing switch controls the period of operation, so that full movement of the valve is effected and the motor runs for an additional adjustable period to provide complete sealing of the valve, over-running in either direction being prevented by a slipping clutch. A push-button c is closed to energise a relay coil a and start the motor to open the valve. Contact a' is closed to short-circuit the push-button c and energise a timing-switch coil h which closes its contact i. After a pre-determined period, the timing-switch opens the contact i to de-energise the coil a and open the contacts a'. The valve is closed by operation of a push-button d and similar operations follow. The system comprises a stop pushbutton e, an overload release f, and a safety switch g which prevents closing of the motor circuit when the valve is manually operated. Interlocks m and n prevent simultaneous closing of the main motor contactors, and signal lamps p, and r indicate the direction of movement of the valve and any irregular operation.
Patent GB-770301-A (GB)
Title: An improved push-button tuning mechanism for radio receivers
Inventor: BONE KENNETH CHARLES
IPC: H03J5/12
Filed: 1954-03-26
Abstract: 770,301. Adjusting radio apparatus. PLESSEY CO., Ltd. March 25, 1955 [March 26, 1954], No. 8902/54. Class 40(5) In a push-button-tuning mechanism of the type in which depression of a push button 26 causes a corresponding cammember 17 to rotate a plate 10 into alignment with it, thereby effecting a corresponding movement of the tuning coils 4, each member 17 is pivotally mounted between two blades 18, 19, one of which at least is resilient and means is provided whereby on withdrawal of a push button the corresponding blades 18 and 19 are able to move apart slightly thus leaving the cam 17 free to rotate but on depression of the push button the blades are urged together and the cam is locked in position. Thus normally each cam 17 is locked in position and depression of a push-button causes the corresponding cam to position the tuning cores 5 in accordance with its own positioning. However when it is desired to alter the setting of any one cam, the corresponding pushbutton is withdrawn, thereby freeing the cam, the receiver is tuned manually to the desired frequency and the push-button is depressed whereby before the cam is locked in position again, it is set to correspond to the receiver tuning when it comes into contact with the plate 10.' As shown in Fig. 1, the push-buttons 26 are formed with apertures which receive the ends of the blades 18, 19, these being retained within the push buttons by screws 28 which pass through slots in the blades. A leaf spring 27 is also provided within each push-button so that when the push-button is depressed the ends of the blades are forced together thus locking the corresponding cam in position. A screw 39 permits adjustment of the spring 27. Manual adjustment of the tuning apparatus is effected by rotation of shaft 31, which operates through rubber driving wheel 32, and bevel wheel 36 to rotate shaft 35 round which passes a cord in the form of loop passing over two pulleys and attached by a portion passing through a hollow peg 9 and a tensioning spring 37 to a sliding bar 7. Thus rotation of shaft 31 causes a fore-and-aft movement of the bar 7; since the bar 7 is connected to the upper side of the plate 10 this causes rotation of the plate 10 about its pivots 11. The cores 5 are attached to rods which screw into threaded apertures in the bar 7. A pointer 38 is operated through link-work by a fore-and-aft motion of the bar 7. In a modification, Fig. 6, both blades of each pair are of springy material and the apertures in the push-buttons are tapered.
Patent GB-590048-A (GB)
Title: Electric discharge tube
IPC: H01J61/067
Filed: 1945-04-11
Abstract: 590,048. Discharge lamps. LUMALAMPAN AKTIEBOLAG. April 11, 1945, No. 8960. Convention date. April 27, 1944. [Class 39 (i)] A fluorescent lamp 1 has incandescent coil electrodes 7 each with a shield in the shape of a hood divided into two parts 2 and 6 lying around it to trap positive ions and prevent sputtering of the electrode material. Each half of the shield is connected to a feed wire of the electrode. A relay device 10 is included in the circuit. If desired, only one electrode may be shielded.
Patent GB-235145-A (GB)
Title: Improvements in and relating to the joints of tanks
IPC: B21J15/02
Filed: 1925-04-03
Abstract: 235,145. Soc. Anon. des Ateliers d'Aviation L. Breguet. June 5, 1924, [Convention date]. Joint-making packing.- The joints of tanks made from light alloys are riveted, a sheet of heavy paper &c. impregnated with a solution of shellac in alcohol being placed in the joint. Joint covers or strengthening pieces may be provided, and a cord coated with shellac may be disposed in a groove. In a body joint, Fig. 1, the packing b is interposed between the bent ends of the body sheet. As shown in Fig. 3, a strengthening piece i, joint cover j, and cords g<1>, g<2> are provided. The Specification as open to inspection under Sect. 91 (3) (a) comprises also joints between a filling or discharge member and a partition, and a tank. This subject-matter does not appear in the Specification as accepted.
Patent GB-557146-A (GB)
Title: Improvements in machines for winding thread and the like
IPC: B65H54/32
Filed: 1942-06-30
Abstract: 557,146. Winding thread. CLARK THREAD CO. June 30, 1942, No. 9008. Convention date, Nov. 8, 1941. [Class 120 (ii)] In a winding machine in which the thread guide is reciprocated in a traverse frame that is moved radially of the bobbin as winding proceeds, the bobbin 3 is moved axially of the winding spindle 25 during winding to form a tapered end to the bobbin by a hollow conical member 1 mounted to rotate with and move axially along the spindle, the internal and external surfaces 4, 5 of the member I being slidably engaged by means mounted on the traverse frame 8 to cause the axial movement thereof. As shown the conical member carries a sleeve 28 having a slot 29 engaging a pin 30 extending from an extension 35 of the spindle 25 and the bobbin 3 is secured to an arbor 2 fixed in the conical member. Pins 38, 38a having bevelled ends engaging the surfaces 4, 5 of the member 1 are adjustably mounted in the limbs 11, 12 of a yoke 10 adjustably mounted on a plate 40 fixed to the traverse frame.
Patent GB-291563-A (GB)
Title: Loud speaker cones for radio receiving sets
IPC: G10K11/02
Filed: 1927-04-04
Abstract: 291,563. Naylor, C. H. April 4. 1927, Diaphragms, - A loud-speaker diaphragm of substantially conical shape and having a curved generating line is constructed of spirally arranged segments of thin material. In one method of constructing such a diaphragm, a number of strips of the form shown in Fig. 2 are wound spirally on a pattern turned to the desired inner shape of the diaphragm, the strips covering the whole surface of the pattern and being temporarily held in position by an adhesive substance, such as wax. A second layer of strips is then laid on the first having their spirals in the opposite direction, the two layers being gummed or glued together. When dry, the shaped diaphragm, shown in Fig. 3, is removed from the pattern. Fig. 4 shows a modified form of diaphragm produced by interlacing the two layers of strips, with or without a pattern. The finished diaphragm, which is preferably of exponential form is coated inside and out with shellac varnish &c. The Provisional Specification describes a diaphragm fixed at its edge of largest diameter and whose axial length is greater than one third of its base diameter.
Patent GB-558469-A (GB)
Title: Improvements in or relating to the electrodeposition of copper
IPC: C25D3/40
Filed: 1942-07-03
Abstract: 558,469. Electrodeposition of copper. DU PONT DE NEMOURS & CO., E.I., and WERNLUND, C. J. July 3, 1942, No. 9195. Addition to 528,762. [Class 41] The bath for electrodeposition of copper according to the parent Specification is modified by the introduction of potassium in the form of KOH as part of the alkali metal content in the proportion of from 1 to 6 moles of sodium ions for each mole of potassium ions. The alkali metal sulphocyanide may be omitted but 0.25 ounces per gallon are preferably present. Brightening and anti-pitting agents such as carbohydrates and high molecular weight-betaines may be included in the bath.
Patent GB-1115897-A (GB)
Title: Polyalkylene oxide-polysiloxane block copolymers and process for preparing same
Inventor: ROSSMY GERD
IPC: C08G77/46
Filed: 1967-02-27
Abstract: A mixture of block copolymers having the average general formula <FORM:1115897/C3/1> wherein each R is a lower alkyl or phenyl radical, each R1 is a lower alkyl, vinyl or phenyl radical, a has a value from 3 to 10, b has a value from 1 to 14, and Y is derived from a mixture composed of 60 to 95 OH-equivalent per cent of (b1) a polyalkylene-glycol monoether consisting of ethylene-oxide and propylene-oxide units and having a content of 40 to 70% by wt. of oxypropylene units and a mol. wt. of from 1000 to 3000, and 5 to 40 OH-equivalent per cent of (b2) a monohydric alcohol and/or phenol, can be made by reacting together a siloxane of the above formula, except that 10 to 30 mol. per cent of the Y radicals are sulphate radicals and the remainder are Cl atoms, a polyalkyleneglycolmonoether containing 40 to 70% (wt.) of oxypropylene units, the remainder being oxyethylene units and having a mol. wt. of 1000 to 3000, and a monohydric alcohol (e.g. isopropanol or lauryl alcohol) and/or phenol. Examples describe the above preparation of the mixed copolymers.  Uses.-For stabilizing polyurethane foams. In Example 1 a stabilized polyurethane foam is made by mixing together a polypropyleneoxide triol, tin octoate, water, triethylenediamine, and the siloxane-polyether stabilizer, and adding thereto trichlorofluoromethane and finally tolylene diisocyanate, and after agitation pouring the mixture into a carton.
Patent GB-1375523-A (GB)
IPC: A01C17/00
Filed: 1973-02-26
Abstract: 1375523 Spreading implement AMAZONEN-WERKE H DREYER 26 Feb 1973 [26 Feb 1972] 9328/73 Heading A1D A centrifugal spreader comprises a hopper 1 having an outlet 3 for material to be spread, a rotary member 10 below outlet 3 and a slide 4 covering the outlet, the slide being movable to uncover the outlet 3 initially to form a first opening 20 allowing only pulverant constituents of the material to be discharged onto the rotary member 10, and then to increase the size of the first opening 20 and allow larger constituents of the material to be discharged and simultaneously to form a second opening 21 allowing initially only pulverant constituents of the material to be discharged, the second opening 21 being arranged with respect to the first opening so that ingredients from the second opening 21 are discharged onto the rotary member 10 radially further out than the ingredients from the first opening 20. As shown, the openings 20, 21 are in the side of the hopper 1, the second opening 21 being above the first opening 20. The hopper is conical and has a flat portion 2 in which the outlet 3 is situated and against which the slide 4 moves. The slide 4 may be held in any one of a plurality of different positions by adjustable fixing means comprising a panel 7 having a plurality of apertures 6 into which a pin 9 may be inserted so that slide 4 on an extension 8 leans against the pin. The openings may be in the base of the hopper and the spreading member 10 may rotate about an inclined or a horizontal axis.
Patent GB-691436-A (GB)
Title: Improvements in easy packing shipping container of large capacity
IPC: B65D5/68
Filed: 1951-04-24
Abstract: 691,436. Boxes; packing. BELSINGER, Inc. April 24, 1951 [Jan. 2, 1951], No. 9484/51. Classes 18 and 94(i) A cardboard box of inside depth of at least 40 inches, is arranged for easy packing by provision of a liner in two parts, one part C being inserted into the lower box section A and that section being packed, and the second part D then being inserted into the space between the upper edge of the part C and the mouth of the section A in abutting relation with the part C for completion of the packing. The upper section B is telescoped over the part D into abutting relation with the part A and secured by adhesive strip and/or baling bands. The ends of the parts A, B may be closed by flanged caps stapled to the walls, in lieu of the closure flaps 14, 15 shown. Specifications 654,665 and 654,679 are referred to.
Patent GB-1262888-A (GB)
Title: Electrographic liquid development
IPC: G03G9/12
Filed: 1969-02-21
Abstract: 1,262,888. Electrographic imaging. XEROX CORP. Feb. 21, 1969 [Feb.23, 1968 , No. 9484/69. Heading G2H. An imaging member having conductive areas and insulating areas or having areas of relatively high capaticance and relatively low capaticance (as seen from the electrode(s) mentioned below) is developed in a liquid developer comprising finely divided pigment particles dispersed in an electrically insultating carrier liquid by applying a potential to at least one electrode immersed in the developer so as to produce a non-uniform electric field. The electric field is preferably produced by one or more knife-edge coronodes. The imaging member may be an xerographic drum exposed through an original in the drum, a conductive drum bearing an insulating image or a conductive drum having a relief surface completely covered with an insulating layer.
Patent GB-993042-A (GB)
Title: Improvements in or relating to interior lining for motor cars
Inventor: DAVIS ROY
IPC: B29C44/14
Filed: 1961-03-15
Abstract: <PICT:0993042/C3/1> Foamable compositions comprise (a) polyoxypropylene glycol, tolylene diisocyanate, silicone oil, emulsifying oil, cyclohexyl dimethyl amine and water, and (b) pentaerythritol, 1 : 3 - butylene glycol, adipic acid, phthalic anhydride, water, tri-b -chlorethyl phosphate, an octylphenol/ethylene oxide reaction product, and diisocyanato-diphenyl methane.
Patent GB-860957-A (GB)
Title: Letter plate
IPC: A47G29/126
Filed: 1958-03-25
Abstract: 860,957. Letter boxes. WILLIAMS, H. M., and ALBERT MARSTON & CO. Ltd. Jan. 12, 1959 [March 25, 1958], No. 9491/58. Class 18. A letter plate 1 has an aperture closed by a spring flap 2 which is urged towards the closed position by a spring or springs 9 acting so that the distance of the line of action of the spring 9 from the hinge axis 3 of the flap decreases whereby the torque acting on the flap about its hinge 3 tc urge it towards the closed position decreases over at least the greater part of the angular movement in the opening direction of the flap. The back of the plate 1 carries a lug 6 with a pin 7 and the back of the flap 2 carries a lug 8, both lugs having forks at their rear ends. A cotter pin 10 whose arc pivots on pin 7 stiffens the compression spring 9 which acts between the lugs 6, 8. A metal channel section member 11 partly encloses the lugs 6, 8 and the spring 9 and has sides slotted at 12 to allow sliding engagement with a pin 13 on the lug 8.
Patent GB-513654-A (GB)
Title: Improvements in or relating to gravity meters
IPC: G01V7/04
Filed: 1938-03-28
Abstract: 513,654. Photo-electric apparatus for measuring gravity. ASKANIA-WERKE AKT.- GES. VORM. CENTRALWERKSTATT DESSAU UND C. BAMBERG-FRIEDENAU. March 28, 1938, No. 9501. Convention date, March 27, 1937. [Class 40 (iii)] [Also in Group XXXVIII] Apparatus for measuring the force of gravity comprises a mass mounted on a spring for vertical movement and photoelectric means for measuring the displacement of the mass. A spring 1, Fig. 1, supports a mass 2 to which is attached a horizontally slotted mask 3 which partially intercepts light 4 passing from a source 5 through a fixed similar mask 7 to a photo-sensitive device 6. Displacement of the mass 2 allows an increased amount of light to fall on the cell 6 whose response is measured by a meter 9. By connecting two photo-cells of similar output in opposition, Fig. 2 (not shown), and arranging that one shall receive uninterrupted light only, the change produced by displacement of the mass is shown on the meter. Alternatively there may be used masks having two differentially arranged series of apertures positioned before two photo-cells so that, on displacement of the mass, the light falling on one increases as that falling on the other decreases. A null method employs a mask 7, (Fig. 8), supported on a spring arm 14 tensed by a spring 16 attached to a micrometer screw 15. The deflection produced in the meter 9, on displacement of the mass 2, is reduced to zero by turning the screw 15 to bring the mask 7 back to the position it originally held relative to the mask 3 carried by the mass 2. The distance through which the screw moves is then used as a measure of the gravitational force.
Patent GB-416109-A (GB)
Title: Improvements in or relating to thermionic valve assemblies and associated amplifying arrangements
IPC: H01J21/20
Filed: 1933-03-30
Abstract: 416,109. Thermionic valves. CHAMBERS, W. A., Lullingstone, Reigate Road, Ewell, Surrey, and COX, F. J. G., 61, Brondesbury Road, Kilburn, London. March 30, 1933, No. 9575. [Class 39 (i).] In a direct coupled amplifying system in which two or more amplifying chains of valve circuits are connected as shown in Specification 379,456, the valves are mounted in a single envelope so that the cathodes in each equivalent valve pair are joined together, and heaters for the cathodes are provided. As shown, three pairs 1, 4, 2, 5, 3, 6 of valves have the indirectlyheated cathodes in each pair joined together, or a common cathode may be used for each pair. The impedances may be mounted within the envelope. Specification 330,956, [Class 40 (v)], also is referred to.
Patent GB-207469-A (GB)
Title: Improvements in moving electric signs
IPC: G09G3/00
Filed: 1923-04-07
Abstract: 207,469. Reilly, F. C. April 7, 1923. Monogrammic signs.-Relates to monogrammic signs of the kind in which lamps arranged in a bank are selectively illuminated so as to set up luminous letters and the like, the selection being affected by means of perforated strip passing between contacts arranged in correspondence with the lamps. The invention consists in means for taking up and storing the slack in an endless perforated tape. The endless tape 6, Fig. 1, passes upwards and downwards over rollers 5 fixed in rails 4, and under rollers 12 carried by a frame 7 which is pivoted at one end in lugs 11. The rollers 12 can be opened up for inserting the tape, but are normally held in the operative position by a locking member 44 having a flange which holds down the spindles 13. The number of rollers 5 and 12 taken into use depends on the length of the tape to be accommodated. The tension of the tape can be adjusted by moving a roller 39 and also by varying the tension in a chain 16 which supports one end of the frame 8, a screw and nut 18, 17 being provided for this purpose while a spring balance 19 indicates the magnitude of the tension. The tape after passing under the final roller 20 is drawn through the field of contacts 23 and over the roller 30 by motor-driven rollers 31 and 32. A switch 41, held closed by the tape so long as the latter is taut, is opened if the tape breaks so as to stop the machine and display. The contact-system comprises a set of conducting blocks 29 connected to one pole of the current source, and a corresponding set of brushes 25 fixed by screws 27 in slots in terminals 23, each of which is connected to a corresponding lamp. Contact between the brushes 25 and blocks 29 takes place selectively according to the perforations in the tape 6 which passes between them.
Patent GB-687446-A (GB)
Title: Improvements in and relating to an improved torque wrench
IPC: B25B23/143
Filed: 1951-04-25
Abstract: 687,446. Electric battery lamps. M.H.H. ENGINEERING CO., Ltd., ALEXANDER. E.. and ELISEY, N. H. April 25. 1951, No. 9612/51. Class 39(ii) [Also in Group XXIII] In a torque overload indicating wrench, the hollow handle 2 houses at one end an electric battery 3 and warning light bulb 4. and is provided at the other end with a micrometer adjusted switch 6 which, when a predetermined load is reached or exceeded, completes an electric circuit wherebv the lamp is illuminated. The switch is fixed t6 and housed in the casing 5 which is sealed by a cover plate 16, the preselected load being determined by the setting of the micrometer screw 8 which is attached to the casing. On the load being reached, the screw 8 is contacted by a knife edged spring controlled cam lever 9 attached to a lever 10 having an accurately cut notch 11 in which engages a spring controlled lever 12, the latter being maintained in engagement by an eccentric spring locking cam 14. On the load being exceeded the lever 10 is lifted until it reaches the stop 15 which is connected to the casing, and the lever 12 carried forward by the spring. The switch is locked in this position by the cam 14 and the bulb remains illuminated until the plate 16 has been removed and the cam released.
Patent GB-270471-A (GB)
Title: Improvements in self-feeding water boilers
IPC: F24H9/20
Filed: 1926-04-13
Abstract: 270,471. Jackson Boilers, Ltd., and Hargreaves, H. April 13, 1926. Valves and cocks, arrangements and applications of.-In a gas-heated self-feeding water boiler of the kind in which the water passes through an outer shell 1 to an inner boiling chamber and in which a valve 6 in the gas supply conduit 5 of the burner 11 is operated by a stem 7 from the handle 8 of the water tap 9 so as to be fully open when boiling water is being drawn off and to be at byepass when the tap 9 is closed, a thermostatically controlled valve 14, adapted to open when the temperature of the water falls below a predetermined minimum, is provided in a pipe 12 connected to the conduit 5 on either side of the valve 6. The casing of the valve 14 is preferably secured to the outer shell 1 near the feed water entry. The pipe 12 is provided with a tap 13. The main gas tap 3 is fitted with a pilot burner 4.