baber/WOPTO huggingface dataset:
Patent GB-933664-A (GB)
Title: Improvements relating to the treatment of filaments
Inventor: LEWIS GEORGE WILLIAM
IPC: D06B15/02
Filed: 1961-05-02
Abstract: <PICT:0933664/IV(a)/1> Apparatus for expressing liquid from bundles of liquid-impregnated filaments comprises a pair of parallel squeeze rollers one of which has a pair of spaced outward radial flanges and the other is a close fit between the flanges, and a constricting device for preventing the filaments, on leaving the nip of the rollers, from contacting the flanges.  As shown, 1 and 2 are freely rotatable squeeze rollers, the lower roller 1 having flanges 3 and the roller 2 fitting closely between said flanges, 4 and 5 form a similar pair of rollers and are connected to driving means for drawing the filaments through the squeeze rollers 1, 2.  The lower roller 4 has flanges 6 and its width is such that flanges 6 can fit between the flanges 3 of roller 1 and thus prevent the filaments of a tow 7 passing between the rollers from contacting flanges 3 and so picking up excess liquid squeezed from the tow by rollers 1, 2.  In a second embodiment the pairs of rollers are spaced apart and a constricting fork like member is positioned between the two pairs of rollers.
Patent GB-924674-A (GB)
Title: Fuel pumps
Inventor: RIGHTON JOSEPH JOHN
IPC: F02M41/08
Filed: 1959-05-08
Abstract: 924,674. Swash-plate pumps. JOSEPH LUCAS (INDUSTRIES) Ltd. April 27, 1960 [May 8, 1959], No. 15836/59. Class 102(1). In a revolving cylinder swash-plate pump delivering fuel to a gas turbine wherein the pump is combined with a by-pass 10 including a valve member 14 carried on a lever 13 operably connected to governor weights 15 carried on the pump rotor spindle 5 so that the valve opens when pump speed exceeds a predetermined value, a further spring-loaded, bypass valve 19 is fitted in the by-pass 10 between the pump outlet and the valve 14. On pump delivery pressure falling below a predetermined value in the event of rapid deceleration of the pump, the valve 19 closes automatically to retain a pump delivery pressure sufficient to maintain the burner flame alight.
Patent GB-159594-A (GB)
Abstract: 159,594. Yates, H. J., Howlett & Co., Ltd., M., and Dolphin, J. Nov. 29, 1919. Atmosphcric gas burners. - An atmospheric gas burner for heating purposes consists of a refractory mixing-member A, Fig. 1, of cylindrical form open at the bottom 1, closed at the top 2 and having an enlarged cylindrical base 3 which rests on the turned-over bottom edge of a thin cylindrical metal member B fitting in each of the holes 9 of the burner casting 10. This member A has a series of vertically longitudinal slits 4 arranged from the top 2 to the bottom 1 and extending radially from the interior to the exterior of the body, and is kept in position in the member 6 by an internal circumferential rib 7 on that member bearing against the top of the enlarged base 3. The gaseous mixture from the chamber 11 passes in through the bottom 1 of the member A, through the slots 4 into the annular space 5 and thence to the nozzle 6 formed in the member B, any dust entering the nozzle hole 6 being precipitated on to the base 3 of the member A at the bottom of the space 5. In a modification, the metal container B is dispensed with and the member A is dropped into the circular nozzle recess 9 on to a shoulder provided in the casting, the recess being fitted with a conical metal cap C having a central outlet nozzle for the gaseous mixture.
Patent GB-550127-A (GB)
Title: Improvements in electromagnetic tapered wave-guide radiators
IPC: H01Q5/55
Filed: 1941-12-12
Abstract: 550,127. Wireless signalling; aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 12, 1941, No. 16084. Convention date, Dec. 12, 1940. [Class 40 (v)] In an electromagnetic horn radiator, for the simultaneous or selective transmission or reception of signals, in which are mounted two linear aerials 11, 12 operating with different frequencies and with such orientations that the polarization of the associated waves are perpendicular to each other in the horn, the transverse dimension of the horn at any section from the mouth of the horn to the aerial, and in a direction perpendicular to each aerial, is not less than half the wavelength at which that aerial operates. The aerials 11, 12 may be spaced along the axis of the hom as shown in Fig. 1 or the horn may branch into Y-form, one aerial being mounted in each arm. The horn may taper uniformly or may be divided by non-tapering portions. Grids of wires 14 may supplement the selective action, the grid passing only waves polarized in a direction at right angles to the wires. Specification 549,753 is referred to.
Patent GB-588564-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04M11/02
Filed: 1944-08-25
Abstract: 588,564. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and PEARCE, O. A. Aug. 25, 1944, No. 16195. Drawings to Specification. [Class 40 (iv)] In an automatic exchange having code call facilities, a wanted subscriber is dialled and, if he is not present at the telephone location the caller dials an additional digit which takes into use a code call link in which a finder searches for the wanted number and, having found it, emits code signals appropriate to the wanted number. The code call link has another finder which searches for the caller and then releases the link through which the call was originally set up. The wanted party dials a code number from any telephone, to put him in communication with the caller. The circuits are identical with certain of those described in Specification 588,563, the claims being limited however, to the code call feature.
Patent GB-1104473-A (GB)
Title: Control of grinding
IPC: H02P29/00
Filed: 1965-04-15
Abstract: A grinding process, e.g. for cement, is automatically controlled in dependence on a combination of measured variables of the process and the control is overridden by further automatic control if one of the variables varies beyond a predetermined limit.  As described, motor-driven feeders respectively supply clinker and gypsum to a two-compartment grinding mill and oversize particles in the output are separated and returned to the input. A microphone is associated with each compartment to derive signals, which are suitably filtered, representative of load, and wattmeters are respectively associated with motors driving the separator and an elevator for mill output to derive further signals representative of load.  Adjustable portions of these four signals are added and any deviation of their sum from an adjustable reference is effective through a transistor amplifier to control the speeds of the motors driving the clinker and gypsum feeders so that mill load is maintained between predetermined limits. The transistor amplifier is associated with biassed diode limiters and has differential feedback to introduce an integral component of control.  If the control signal remains below a predetermined value for a predetermined period an alarm is operated to indicate a deficiency in the feed to the mill.  Each of the four signals is also prevented from exceeding a predetermined limit by application to separate transistor circuits which can override the main control system by reducing its reference value.  Different combinations of load detectors and the use of temperature variable resistors as load detectors are referred to.
Patent GB-396205-A (GB)
Title: Improvements in and relating to high vacuum distillation systems
IPC: B01D3/10
Filed: 1932-06-09
Abstract: <PICT:0396205/III/1> In the vacuum distillation of organic liquids which contain substances which condense under pressure or when the vacuum is lowered in the rotary pump producing the vacuum, a tube or chamber is interposed between the distillation system and the rotary pump and is provided with a surface which is heated to such temperature that the condensible substances are decomposed into solids and incondensible gases.  A chamber 1, provided with an inlet 2 for the distilled vapours and an outlet 3 connected to the rotary vacuum pump, is heated by a U-shaped resistance wire 6 the ends of which are secured in clamps 7, 8.  The top of the tube is welded to a metal flange ring 5 on which are carried metal rings 10, 15 supporting the clamps 7, 8 and separated by an insulating ring 12, the tube being closed by disc 16, which may be of glass to allow inspection.  The rings 10, 15 carry terminals 11, 16 for connection to a low voltage heating current supply and may be cooled by circulating fluid through tubes 18 welded into grooves 17.
Patent GB-554224-A (GB)
Title: Improvements in or relating to electric current conversion systems
IPC: H02H7/127
Filed: 1942-11-20
Abstract: 554,224. Converting. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Nov. 20, 1942, No. 16430. Convention date, Nov. 26, 1941. [Class 38 (ii)] In a polyphase converter comprising valves 3a of the immersion ignitor type and wherein ignition impulses are applied to the electrodes 16 through a wave-distorting network 32, 33, 34 and transformer 30, and pick-up potentials are applied to anode shields 17 from a transformer 20, a source of negative bias, such as rectifier 40, is inserted between the star-point of the transformer 20 and the cathodes of the valves, and a reverse current relay 45 is provided on the D.C. side which relay on the occurrence of a back-fire operates to de-energize transformers 20 and 30 by opening contacts 49. Thus the ignition electrodes are de-energized and the anode shields are left under negative bias from rectifier 40, feedback to the back-firing valve being prevented by opening of a high-speed relay 72. Similar protection is afforded under over-load conditions by opening of contacts 56 by operation of an overcurrent relay by current transformers 57 on the primary side of the main transformer 12.
Patent GB-145425-A (GB)
Title: Method and apparatus for vulcanizing
IPC: B29C35/08
Filed: 1920-06-17
Abstract: 145,425. Goodyear Tire & Rubber Co., (Assignees of Post, C. W.). May 22, 1919, [Convention date]. Induction furnaces and ovens.-Articles are heated, e.g. for vulcanizing, by enclosing them in an annular mould of conducting-material and placing the mould in an alternating electric field, whereby induced currents are set up therein with a consequent rise of temperature. A tyre or like mould 11, Fig. 1, is placed in an oven 10 surrounded by a laminated core 12 - - 16, having a removable upper portion 13 for insertion of the mould. Coils 17, 18, 19 are wound round the arms 14, 15, 16, and on passing an alternating current, a secondary current is induced in the mould. The temperature of the mould may be regulated by varying the primary current or by having several superposed coils each of which can be independently switched into the circuit. The temperature of the mould can also be varied locally bv the provision of radiating surfaces as shown in Fig. 4, or by annular grooves in which are placed rings 21. 22 of material of greater or less conductivity than the mould material. In another form, several independent cores 80, Fig. 6, are placed round the mould.
Patent GB-895274-A (GB)
Title: Improvements in or relating to tape tensioning devices
Inventor: LAWTON JOHN EDWARD
IPC: B21C47/00
Filed: 1959-05-13
Abstract: 895,274. Feeding webs. BRITISH INSULATED CALLENDER'S CABLES Ltd. May 13, 1960 [May 13, 1959], No. 16445/59. Class 100(1) Tape T is tensioned by rollers 1, 2 driven by the tape and having rims of elastomeric material, the rollers 1, 2 being urged together to produce flattening of their peripheral surfaces. The roller I is supported in bearings in a frame 3 having two L-shaped plates 10. A spindle 18 suuports a bellcrank lever 5 carrying the roller 2 between arms 21. The forked end of a single arm 20 of the bell-crank lever 5 accommodates a spring housing 6 mounted by trunnions, not shown, in open bearings in the forked end. A rod 29 projects through the wall 33 of a cylinder 32 having trunnions, not shown, supported in bearings located in the plates 10. The compression of springs 31, 39 urging the rollers 1, 2 together is adjusted by a knob 38. The frame 3 is positioned with a second frame 4 having side plates 44 supporting a guide roller 46. A spring 7 secured to the frame 4 by a pin 56 and to the frame 3 by a screw 59 engaging a spindle 61 urges the upper end of the frame 3 from the roller 46. In a modification, the tape engages a rubber rimmed roller 65, Fig. 3 (not shown) engaged by a solid rubber roller 66, the rollers 65, 66 being urged together to produce flattening of the peripheries. In a further modification a capstan roller 73, Fig. 4 (not shown) engaging the tape T drives a solid rubber roller 70 engaging a similar roller 71.
Patent GB-583316-A (GB)
Title: Improvements in fuse cartridges
IPC: H01H85/143
Filed: 1944-08-30
Abstract: 583,316. Tube joints. ENGLISH ELECTRIC CO., Ltd., and LANDERS, M. A. B. Aug. 30, 1944, Nos. 16520/44 and 8291/45. [Class 99 (i)] [Also in Group XXXVI] Means for coupling tubular non- metallic parts, such as two parts of a ceramic fuse cartridge comprises a metallic sleeve 3 and a metallic ring or rings 5 located in grooves 4 in the fuse body parts 1, 2, the rings being connected to the sleeve by soldering, brazing, or welding. The ring may be a split spring ring adapted to grip the base of the groove, and project slightly from it. The ring may comprise one or more turns of wire, the ends of which are turned into recesses in the side of the groove, or the groove may be of helical form. The reduced ends 1a, 2a, of the ceramic body may be surrounded by a ceramic sleeve 6 which is cemented to the body parts before the application of the metal sleeve. The metallic end cap of a fuse cartridge may be secured to its ceramic body in a similar manner.
Patent GB-219010-A (GB)
Title: Improvements in electrical heaters
IPC: H05B3/00
Filed: 1924-07-10
Abstract: 219,010. Grau, H. July 10, 1923, [Convention date]. Wire resistances, encased and mounted on grooved surfaces.-An electric heater comprises a plate 1 of heat-proof and non-conducting material provided with parallel grooves 2 of trapezium-shape in cross section engaged by a resistance wire 3 of greater diameter than the width of the grooves, the wire being held in position by a flanged plate 5 separated from the wire by a sheet 4 of mica or the like. The plate may be made of a shape suitable for baking and roasting furnaces or a glossing iron and may be wired in star or delta fashion for connection to a three-phase system.
Patent GB-435714-A (GB)
Title: Improvements in precision metal-cutting, grinding, or like machine tools
IPC: B23Q17/24
Filed: 1934-06-04
Abstract: 435,714. Grinding. SOC. GENEVOISE D'lNSTRUMENTS DE PHYSIQUE, 8, Rue des Vieux Grenadiers, Geneva, Switzerland. June 4, 1934, No. 16576. Convention date, April 23. [Class 60] [See also Group XXII] A precision grinding - machine tool has a work carriage or tool slide 1 operated by a hydraulic cylinder 8 and is provided with a microscope or like means 6 coacting with a scale for measuring the table movement. The scale is marked on a completely enclosed channel bar 5. The control of the cylinder 8 is such that the table may be rapidly accelerated at the beginning of its movement, then progressively slowed and finally stopped at exactly the desired position.
Patent GB-278416-A (GB)
Title: An improved motor driven agricultural machine
IPC: A01B33/02
Filed: 1926-07-02
Abstract: 278,416. Foot, E. H. W. July 2, 1926. No Patent granted (Sealing fee not paid). Rotary-tool and disc-tool implements; cleaning parts; guards; wheels, arrangement of; implements with means for distributing seeds.-A motor-driven cultivator comprising a rotary time-carrying shaft a and a rotary shaft e carrying tine cleaners is provided with an additional rotary shaft e carrying interchangeable tools for ridging and furrowing or pulverizing the soil, or for covering sown seeds, this additional shaft e being driven from the tinecarrying shaft a, or from the shaft c, or from the shaft of seed-drilling apparatus when such apparatus is mounted on the machine. The sha.ft e is provided with equally spaced collars or brackets f on which tines or ridging tools g or discs are mounted. The shaft is shown driven by spur and chain gearing from the cleaner shaft c. A trailer wheel o connected by a. forked bracket q to a hood p prevents the ridging tools from penetrating too far into the soil. The shaft e is detachably mounted in a bracket r on the bracket q and is supported at its ends by detachable brackets.
Patent GB-1495563-A (GB)
Title: Cover for floating on water and enabling the water to be heated by solar energy
IPC: F24J2/04
Filed: 1975-04-16
Abstract: 1495563 Swimming pool covers PLESSEY CO Ltd 16 April 1975 [17 April 1974] 16695/74 Heading A4N [Also in Division F4] A cover 2 which is adapted to float on water comprises a plurality of inter-connected sections 14-28, each section comprising a first flexible sheet 4 of transparent or translucent plastics material spaced above a second flexible sheet 6 of thermally conductive plastics material; each section thereby including a plurality of hollow chambers. The spacer means may be spacer plates 8 or a honeycomb structure. The cover may include additional floats; may have convex upper surfaces, Fig. 3 (not shown); or may have the second sheet 6 formed of a carbon-containing plastics material.
Patent GB-948326-A (GB)
Title: Cementing well casings
IPC: E21B33/14
Filed: 1961-05-08
Abstract: 948,326. Wells. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. May 8, 1961 [May 9, 1960(2)], No. 16744/61. Heading E1F. Casing 24 is cemented in an offshore well 18 by leaving a drill string 16 extending from within the well to above the water surface 12, running the casing over the string until it extends from within the well to above the surface, withdrawing the string from the well, running a cement retainer 29 within the casing and fixing it near the bottom of the casing, attaching a pipe string 28b at the top of the casing, lowering the pipe string until the casing is positioned within the well, hanging the pipe string by its upper end, and pumping cement down the pipe string. The casing is supported by a wellhead structure 21 within the slot 14 of the drilling barge before the drill string is lowered and the hole is drilled. When the hole is drilled additional casing is added until the lower end of the casing enters the hole, the drill string is withdrawn, and a casing head 27 is fixed to the casing. A pipe string 28 supporting the retainer is run into the casing until the retainer seats in and latches to a nipple 26, grooves 31 permitting well fluid to flow between the pipe string and the retainer. After a pin 44 is sheared the pipe string is supported by an elevator or slips. A running head 53 is secured to the pipe string and lowered and latched on to the casing head. The running and wellheads, and the casing and pipe strings, are lowered by a pipe string 28b until the wellhead seats on the sea bed 19. The running head is unlatched and the string 28b lifted so that the retainer has a sealing connection with the part 33 of the string 28. After the string 28b has been engaged by slips 15 a quantity of cement followed by a plug 51 is pumped down the strings 28, 28b until the plug rests on a seat 50. As the strings are withdrawn from the casing a flap valve 34 closes the passage through the retainer to prevent cement entering the casing above the retainer. Specification 948,326 is referred to.
Patent GB-793873-A (GB)
Title: Means for detecting tool breakage in machines
IPC: B23B49/00
Filed: 1955-06-10
Abstract: 793,873. Drilling-machine &c. details. AUSTIN MOTOR CO., Ltd., HIGHFIELD, F. W. W., and BRIERLEY, R. W. June 4, 1956 [June 10, 1955], No. 16824/55. Class 83 (3). [Also in Groups XXXVI and XL (c)] Means for stopping a machine when the tool 10, e.g. a drill, reamer, boring bar, tap, &c., breaks, comprises an inductance-coil L1 encircling the tool and connected to an oscillatory valve-circuit including a relay A controlling a switch for stopping the machine, the presence of the tool in the field of the coil preventing the circuit from oscillating, so that automatic grid-leak-bias is absent and the valve V1 is fully conducting to maintain the relay energized, whilst upon the tool breaking and becoming removed from the field of the coil, the circuit oscillates, a negative-grid-bias is automatically produced, and the resulting decrease in valve-current de-energizes the relay A to stop the machine, and preferably also operates a visible or audible signal or both. The impedance of the coil L1, which may be shrouded from the influence of adjacent metal objects (other than the drill 10), and incorporated in the drill-jig 11, is reduced and the oscillatory voltage developed across it falls as the drill &c., is fed towards the work, until the voltage is insufficient to maintain oscillation and the grid-bias disappears.
Patent GB-273698-A (GB)
Title: Improvements in steering mechanisms for motor vehicles
IPC: B62D3/10
Filed: 1927-06-24
Abstract: 273,698. Farman, H., and Farman, M., (trading as Farman, H. et M.). July 1, 1926, [Convention date]. Steering-gear comprises an operating-shaft connected to auxiliary steering-shafts each of which are mounted in bearings rigidly fixed to the front axle and is geared to a corresponding road wheel steering-pivot, the gearing ratio being different according to the direction of rotation of the shafts so that the steering wheels rotate through different angles and radiate from a centre in line with the non-steering axle. In the construction shown in Fig. 1, the auxiliary steering-shaft a is formed with a screw-thread b engaged by a nut c having rack teeth e gearing with an eccentric toothed sector f on the steering- pivot d. The rack and sector teeth are so arranged that the desired variation in gear ratio takes place. In the construction shown in Fig. 2 the shaft a carries a worm g engaging a ring h mounted on a shaft i carried by the steering- pivot. The worm g is of varying pitch to give the desired variations in gear ratio.
Patent GB-793261-A (GB)
Title: Improvements in and relating to electromechanical transducers
Inventor: MURKHAM LEONARD WALTER
IPC: H04R9/04
Filed: 1955-06-13
Abstract: 793,261. Telephone instruments. RESLO-, SOUND, Ltd, Sept. 13, 1956 [June 13, 1955], No. 16926/55. Class 40 (4). In a transducer of the moving-ribbon type, at least one end of the ribbon is held between a relatively rough (or adherent) surface and a relatively smooth (or non-adherent) surface. As shown, the smooth surface forms a channel 11 in a rectangular frame 8 of insulating material, while the rough surface is on a metal contact member 13. The ribbon 12 and contact member 13 both fit in the channel 11 and adhere together so that the position of the ribbon may be adjusted by means of the member 13, the whole assembly then being clamped together by screwing a plate 14 to the frame 8.
Patent GB-248618-A (GB)
Title: An improvement in shaving brushes
IPC: A46B15/00
Filed: 1925-07-02
Abstract: 248,618. Hawtin, C. W. July 2, 1925. No Patent granted (Sealing fee not paid). Strengthened handles.-A shaving brush has a threaded collar A formed on the handle near the bristle pottion and a tbreaded ring adapted to be screwed on the collar to prevent splitting of the handle or to be disengaged therefrom and moved along the bristle portion to make it firmer in use.