baber/WOPTO huggingface dataset:
Patent GB-1072811-A (GB)
Title: Thermo-couple device for current measurement
Inventor: GAY FRANK MUNRO
IPC: G01R19/22
Filed: 1965-02-26
Abstract: 1,072,811. Current measurement. A.C. COSSOR Ltd. Feb. 16, 1966 [Feb. 26, 1965], No.8473/65. Heading G1U. A thermocouple device for current measurement includes supporting conductors 11, 12 with a heater element 13 extending therebetween through which the current is passed. A main thermocouple junction (wires 14, 15) is attached to the centre of the element and two auxiliary thermocouple junctions (16, 18 and 17, 19) are attached to the element or the supports symmetrically with respect to the main junction. The auxiliary junctions are connected in parallel to one another to develop a voltage proportional to the mean of the end temperatures, and in series opposition to the main junction. The whole system is arranged in an evacuated envelope, and the output from the system is derived at the terminal 20, 21. The Specification states that equilibrium conditions are more rapidly attained with this arrangement than with previous arrangements involving only one thermocouple.
Patent GB-215520-A (GB)
Title: An improved attachment of brush stales to brushes
IPC: B25G3/30
Filed: 1923-03-26
Abstract: 215,520. Bradburn, J. March 26, 1923. Fixing by screwed sockets with flange attachments. - A screwed socket 1 having its lower end closed by a plate 3 projecting to form a flange is fixed by screws or nails 4 to the brush head 2. A screwed sleeve 6 is fixed on the end of the handle 5. The threaded portions are slightly tapered, to provide a firm grip.
Patent GB-307938-A (GB)
IPC: C08F36/04
Filed: 1929-03-15
Abstract: 307,938. I. G. Farbenindustrie Akt.- Ges. March 17, 1928, [Convention date]. Emulsions, making.-Emulsions of di-olefines for the production of synthetic rubber are produced by emulsifying together an aqueous solution of an emulsifying agent and a solution in a. diolefine of the same or a similarly-acting emulsifying agent, the emulsion being then polymerized with or without homogenization. The emulsions have the diolenne or the water in the disperse phase according to the proportions. In an example, a 10 per cent aqueous solution of sodium oleate is emulsified with a 10 per cent solution of magnesium oleate in a butadiene by shaking in a pressure vessel, and is polymerized at 60‹ C. for 10 days. The product is in the form of latex and the yield is higher than without the emulsifying agent dissolved in the diolefine. Specification 307,937, [Class 2 (iii), Dyes &c.], is referred to. The Specification as open to inspection under Sect. 91 (3) (a) includes other examples in which a 10 per cent aqueous solution of sodium oleate is emulsified with a 5 per cent solution of magnesium oleate in butadiene or isoprene, and polymerized at 60‹ C. for 6 days; a 7 per cent aqueous solution of sodium stearate is emulsified with 70 parts of 2 : 3 dimethyl butadiene (1 : 3) containing in solution 3 parts of magnesium oleate, and polymerized at 70‹ C. for 5 days; a 10 per cent aqueous sodium oleate solution is emulsified with a 10 per cent solution of aluminium stearate in butadiene, and polymerized at 60‹ C. for 6 days ; an aqueous solution of sodium oleate and caustic soda is emulsified with a solution of magnesium oleate in butadiene, homogenized, and polymerized at 60‹ C. for 3 days. This subject-matter does not appear in the Specification as accepted.
Patent GB-347826-A (GB)
Title: Improvements in rubber coated fabrics
IPC: B29C37/00
Filed: 1930-03-17
Abstract: 347,826. Coated fabrics. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Du Pont de Nemours & Co., E. I. ; Wilmington, Delaware, U.S.A.) March 17, 1930, No. 8553. [Class 140.] ] Rubber coated fabric is finished by the application of a final coat of an asphalt varnish consisting of a coating composition in which the film-forming constituent is asphalt with or without other ingredients, such as drying oil and pigment, and in which the proportion of oil is less than 160 of oil to 100 of asphalt, and thereafter baking at a temperature above the softening point of the asphalt. The coat of asphalt varnish may be applied over an intermediate coat of oil varnish. The asphalt varnish may be a solution of asphalt in a volatile solvent such as gasoline, benzene or turpentine, with or without drying oils such as linseed oil or chinawood oil. From 2¢ to 7¢ gallons of oil to 100 lbs. of asphalt is generally used, but up to 20 gallons of oil may be incorporated. The drying oil is preferably bodied by heating and may contain driers. The asphalt is preferably a petroleum residue asphalt, but refined natural asphalt, mineral pitch, gilsonite, stearin pitch, or bitumen may be used. The softening point of the asphalt is preferably between 150‹ and 250‹ F. The varnish used as the intermediate coat consists of drying oil, gum and thinner, with or without pigment. Generally the proportion of oil to gum is not less than 40 gallons of oil to 100 lbs. of gum. Any natural or synthetic varnish resins such as kauri gum, ester gum, hardened resin, &c., may be used, with the optional addition of asphaltic gums such as stearin pitch, gilsonite or petroleum asphalt. Such asphaltic ingredients must not exceed onehalf the weight of the drying oil used. When a coat of asphalt varnish only is applied, it is spread over the uncured rubber coating and subjected to a temperature of from 240‹ to 275‹ F. for 30 minutes to 3 hours to vulcanize the rubber and fuse the asphalt. When an intermediate coat of varnish is applied, this is dried at normal or elevated temperature, for instance, at 180‹ F., and the asphalt varnish is then applied and baked. The material may be submitted to vulcanizing temperature for a period before applying the asphalt varnish.
Patent GB-1529893-A (GB)
Title: Balancing of rotary machines
IPC: H02K15/16
Filed: 1976-03-04
Abstract: 1529893 Control of rotor balance STALLAVAL TURBIN AB 4 March 1976 [6 March 1975] 08650/76 Heading G3R Unbalance of a rotor, e.g. of an electrical machine, is sensed and the resulting signal used to control the angular position at which energy pulses are supplied to the rotor to produce asymmetrical heating and thereby restore balance. As shown, the magnitude and angular position of unbalance is detected as bowing of the rotor by a position sensor 4, the signals from which are combined at 8 with angular reference point signals from a pick-up 9, 10 to control via 7 a high frequency source 5 supplying an induction coil 6. Either the magnitude and phase of sinusoidal variations in the h.f. or the duration and instant of application of h.f. pulses is controlled. No details are given of the circuits 5, 7 or 8. The sensor 4 may be electromagnetic, capacitive or optical, or be replaced by pressure transducers in the rotor bearings, and energy may alternatively be supplied by a welding torch controlled by a rotating or oscillating shutter, or be supplied by a laser. A multi-rotor system is mentioned.
Patent GB-286480-A (GB)
Title: An improved process and apparatus for the examination of geological formations
IPC: E02D1/02
Filed: 1927-03-29
Abstract: 286,480. Wolfsholz, A. March 29, 1927. Testing hardness of materials.-The hardness of underground strata is ascertained by boring to the strata and placing a pressure - body thereon, exerting a variable and measurable pressure on the body and noting the sinking of the latter. In Fig. 1 the bore-hole is lined with a tube a which supports a pivoted lever d resting on a stop c<1> and carrying a weight n; a pressure-plate i has a depending cylinder k and is subjected to pressure by admitting water, saltsolution, glycerine, air &c. under pressure to a cylinder f carried by the lever d and containing a piston g connected to the pressure-plate. Yield is noted as by an indicator o. In a modification, the cylinder is rigidly connected to the tube a and in a further form, the cylinder is secured to the pressure plate and placed at the foot of the bore-hole while the piston is secured to the pivoted lever d by a rod which is hollow for the supply of pressure fluid to the cylinder. In another form, the cylinder is secured to the pressure plate, and the piston rod bears against stops in the tube a while in a further form, the pressure is applied by a weight adjustably supported on a lever pivotally carried by the tube a. The pressure plate may be replaced by pointed &c. members and the pressure-applying devices may be supported independently of the tube a.
Patent GB-1467662-A (GB)
Title: Bottle capsules
IPC: B65D41/24
Filed: 1974-02-26
Abstract: 1467662 Moulding bottle cap V FLAX 26 Feb 1974 [26 Feb 1973] 8713/74 Heading B5A [Also in Division B8] A capping capsule comprises a tubular portion integrally formed with a base from a single piece of heat shrinkable material such that the capsule shrinks to conform with the shape of the neck of a bottle on heating. The base is formed by threading a piece of tubular sheath 1 on to a mandrel 2, heating and hence shrinking the part 3 of the sheath 1, which extends beyond the mandrel 2, to form a chimney 4 which is turned back into the space 6 and by advancing the spring-loaded piston 5 is compressed against an abutment 7 to form a base having a diameter less than that of the tubular part 3. The tubular part 3 may be stepped. In one embodiment the chimney enters the space 6 by suction means.
Patent GB-379680-A (GB)
Title: Improvements in elastic force mechanisms
IPC: F03G5/00
Filed: 1931-03-21
Abstract: 379,680. Spring-controlled linkwork. CARWARDINE, G., 17, Macaulay Buildings, Bath, Somerset. March 21, 1931, No. 8746. [Class 108 (iii).] In apparatus in which an elastic member having a constant rate characteristic is combined with linkwork to obtain a constant force in all positions, levers are linked together, as for example by the 2 to 1 gearing shown in Fig. 1, so that when the elastic member operates upon one of the levers Oa at an angle thereto, the desired constant force, for example that supporting a mass M, is obtained in a direction at twice that angle relatively to another lever O<1>b. Further, the elastic member is unstressed when it is perpendicular to its lever. Both levers Oa, O<1>b are geared together so as to start their upward movement from a vertical initial position together, and lever Oa is. horizontal when lever O<1>b is directed vertically upwards. The modification shown in Fig. 3 comprises a slotted arm pivoted to a fixed pokint d and a lever Oc pivoted at O so that OC = od, the lever being extended to carry a weight M. The elastic supporting force connects the points h, c in such a way that the length d, c is proportioned to the force exerted. The angle o, c, d is thus always half the angle between the lever oc and the vertical force supporting the weight M. Also, in the limit when the lever oc is vertical, the slotted arm is horizontal and the elastic force zero. In the application to a lazy tongs mechanism, Fig. 6, elastic members connect the points d, c and d, c<1>, the point 3 on the linkwork being fixed on the slotted arm 2. A constant force is thus applied to support the weight M. In a further modification, the same principle is applied in connection with a series of jointed levers and links.
Patent GB-637806-A (GB)
Title: Improvements in or relating to buttonhole attachments for sewing machines
IPC: D05B3/24
Filed: 1947-04-01
Abstract: 637,806. Sewing-machines. GREIST MANUFACTURING CO. April 1, 1947, No. 8783. Convention date, April 12, 1946. [Class 112] Buttonhole-sewing attachments. The work-holding plate is both oscillated and fed by an oscillating lever through means carried by the lever and the plate ; in a particular form, the lever carries a pinion engaging a buttonhole-shaped rack on the work-plate, the pinion being caused to rotate slowly by the oscillation of the lever to produce the feed motion. In the embodiment shown in plan, the work is held and fed by a foot 48 on the end of a plate 45 which is carried on the underside of a plate 10, fixed to the presser-bar, and guided by a slot engaging a pin 38 on an arm 36 carried on the plate 10 ; the left-hand end of the plate 45 carries an inter-changeable rack 56 formed according to the size and shape of the buttonhole to be sewn. A standard on the plate 10 carries a cam 13 rotatable through ratchet gear by a lever 16 engaging a screw on the needle-bar, and a lever 23, pivoted on the plate 10 at 24, is oscillated by the cam 13. The other end of the lever carries a ratchet wheel 29 on the spindle of a pinion which engages the rack 56, and at each oscillation of the lever 23 the ratchet wheel engages a fixed pawl so that it is rotated step-by-step to feed the rack past the pinion ; the rack is oscillated directly by the lever 23 to produce the over-edge stitching required, the amplitude of the oscillation being varied by adjusting the arm 36 and thus shifting the fulcrum pin 39 along the slot in the plate 45. In a modification (Fig. 9, not shown) the pawl and ratchet 29 are replaced by a spring coiled round the pinion spindle and engaging at one end a lug on the plate 10 with adjusting screw for varying the feed.
Patent GB-1420575-A (GB)
Title: Montioring circuit
IPC: G01R19/145
Filed: 1974-02-27
Abstract: 1420575 Monitoring voltage and frequency NCR CORP 27 Feb 1974 [26 March 1973]  8860/74 Heading G1U A voltage and frequency monitoring circuit produces an output signal on a terminal T6 (zero volts as opposed to the normal +5v) whenever either (a) a positive voltage T1, nominally 12v, falls below 11.2v, or (b) a negative voltage T3, nominally -12v, rises above - 11.2v, or (c) a pulse train T7 falls in frequency below 864kc/s. Normally, that is when all signals T1, T2 and T7 are within their correct ranges, transistors Q2 and Q4 are conducting and the voltage at the common junction of resistors R14, R15, R16 is high, i.e. around,+5v, and the voltage on terminal T6 is +5v. If the voltage T1 falls, the longtailed pair Q1, Q2, switches, causing in turn the pair Q3, Q4 to switch (via diode D1), transistor Q5 to conduct and the voltage on terminal T6 to fall to zero. A rise in the voltage T3 acts directly to switch the pair Q3, Q4, and the output signal T6 falls to zero as before, and a fall in the frequency T7, via a diode D7, also switches the pair Q3, Q4 producing a zero output. Thus, any one or more of the three events (a), (b) and (c), listed above, causes a zero output signal T6.
Patent GB-1478734-A (GB)
Title: Integral multifinger contact brushes
IPC: H01C10/34
Filed: 1975-03-04
Abstract: 1478734 Contacts for potentiometers ILLINOIS TOOL WORKS Inc 4 March 1975 [4 March 1974] 8874/75 Heading HIS [Also in Division B3] An electrical contact brush e.g. for a potentiometer includes a base 10, and a plurality of side by side resilient arcuate contact fingers 16 each integrally joined to the base at two ends of the finger, and the side edges of adjacent fingers being separated over substantially their entire length by a crescent-shaped aperture 18. The brush shown also has a cut-out portion 20, and the centre of each finger is radiused as shown in Fig. 6 at 22.
Patent GB-940201-A (GB)
Title: Improvements in or relating to filtration processes
IPC: B01D25/164
Filed: 1960-03-14
Abstract: 940,201. Filters. PREPARATION INDUSTRIELLE DES COMBUSTIBLES. March 14, 1960 [March 24, 1959], No. 8939/60. Heading B1D. In Fig. 1 liquid to be filtered is fed through a valve 1 to a casing 2, having tubular baffles 2a, 2b, until the level of liquid reaches the top of the inner baffle, or some lower level depending on the thickness of filter cake desired. An endless filter cloth 6 is then squeezed between casing 2 and frames 3 and 4 as shown by a pressure device 5. Compressed air is then supplied through valve 1, the pressure increasing progressively until the pulp has been evenly distributed, and thereafter remaining at the maximum. Filtrate from the upper run backwashes the lower run of filter cloth. The filter cake 9 on the upper run is eventually dried by passage therethrough of compressed air. Then the pressure device 5 is released, permitting frames 3 and 4 to fall on their respective supports 11, 20, and the driving drum 7 is set in rotation. A scraper or like device 8 serves to loosen the cake if necessary. In Fig. 2 the frame 3 is dispensed with and the lower frame 4 is rigidly mounted. Sealing devices 17 are provided which may be expanded by pneumatic pressure or other means. In Fig. 3 a continuous filter cloth 23 passes twice through each of a number of superposed filter chambers 22. Pulp to be filtered is supplied to the chambers simultaneously by introduction of compressed air to a previously-filled tank (not shown) connected to the chambers.
Patent GB-622630-A (GB)
Title: Means for aiding in the picking of fruit and the like
IPC: A01D46/247
Filed: 1947-04-02
Abstract: 622,630. Gathering fruit. RASMUSSEN, K. K. J. April 2, 1947, No. 8985. [Class 6(iii)] A fruit gathering device comprises a bag 6 provided with means 2, 8 and 9 for its attachment to the forearm, the said means utilizing a shaped wire to which the bag is attached, the bag being situated beneath the hand.
Patent GB-497126-A (GB)
Title: A vessel for use in ascertaining the nature of milk
IPC: A01J9/00
Filed: 1938-03-24
Abstract: 497,126. Milk - testing vessels. AKTIEBOLAGET SEPARATOR. March 24, 1938, No. 9041. Convention date, March 24, 1937. [Class 66] A vessel for testing milk is provided with a removable plate 3 of ebonite or other dark coloured material formed with one or more apertures 5 and resting on a shoulder 4 of the vessel against which it is held by a spring clip 6, 7. A jet from the teat is directed on to the plate for inspection, the milk flowing through the aperture into the lower part of the vessel.
Patent GB-975215-A (GB)
Title: A device for use in stapling flat,flexible material
IPC: C14B1/62
Filed: 1963-03-07
Abstract: 975,215. Endless conveyers. STROJOSVIT NARODNI PODNIK. March 7, 1963 [March 7, 1962], No. 9087/63. Heading B8A. Hides are successively delivered on to a support K in a suitable position for stapling by the action of a set of conveyer belts 32 and a reversible set of conveyer belts 53. The gap P between the two sets of belts is bridged by interdigitating members 35. When the hide reaches a feeler 81, a timing device is set which causes the belts 53 to reverse, after a predetermined interval. The feeler 81 also causes the members 35 to be retracted. The hide is thus caused to be draped over the support K as shown occurring at U. Height adjustment is provided by a telescopic mounting 45 operated by a motor 90. A further guide 85 is provided.
Patent GB-676262-A (GB)
Title: Improvements in tools for cutting internal grooves
Inventor: FOSTER TREVOR HUGH
IPC: B23B27/00
Filed: 1950-04-13
Abstract: 676,262. Making tools. NUTS & BOLTS (DARLASTON), Ltd. March 30, 1951 [April 13, 1950], No. 9091/50. Classes 83 (ii) and 83 (iv). A tool for cutting one axial half of an internal groove 15 in an open-ended hollow article, e.g. a nut 16, is formed from a rod 11 of 18 per cent tungsten steel, one end of which is bent slowly through approximately 90 degrees at a temperature of from 550‹ to 600‹ C., then machined to provide a laterally-extending V- shaped tip 14 which is finally hardened and tempered. The shank 11 of the tool is provided with a flat 12 and a recess 13 is ground from the tip 14 along the shank for a length which is not less than the distance of the groove 15 from the end of the nut 16. This recess prevents the tool from fouling the nut when the tool is fed radially outwardly. The hardening is effected by quenching in oil from a temperature of approximately 1350‹ C. and the tempering by heating for an hour at 600‹ C. to 700‹ C. and then cooling in air. Specification 375,430, [Group XXV], is referred to.
Patent GB-375804-A (GB)
Title: Improvements in a reverse current relay arrangement for use in electric rectifier installations
IPC: H02H7/12
Filed: 1931-03-25
Abstract: 375,804. Protective cut-out arrangements. LUTZ, F., 32, Sulgenauweg, Berne, Switzerland. March 25, 1931, No. 9110. [Class 38 (v).] A reverse - current relay arrangement for use with a rectifier has the relay winding in series with a valve connected across a shunt or other portion of the rectifier circuit so that on reversal of current in the rectifier due to back arcing current flows in the relay winding to produce an indicating or switching operation. As shown in Fig. 1, the relay winding B with current in the normal direction in the rectifier circuit, consisting of the anode A, transformer winding T, and shunt S, is fed only by a limited current through a resistance R. On reversal of current in the rectifier circuit, however, a substantial current is shunted to the winding B through the valve V, which current may be utilized to operate an indicator or circuit-breaker. The arrangement may be modified for polyphase circuits, Fig. 3 (not shown), in which the three valve elements may be combined. An alternative arrangement shown in Fig. 2 has the shunt S in the grid circuit of the valve W, the relay winding B being included in the anode circuit. Instead of a shunt, a choking coil, impedance or a tapped portion of the transformer winding, Fig. 4 (not shown), may be utilized for providing the current in the relay arrangement.
Patent GB-1453834-A (GB)
Title: Method of and apparatus for drying particulate materials s
IPC: F26B17/10
Filed: 1973-02-23
Abstract: 1453834 Drying BARR & MURPHY Ltd 29 Jan 1974 [23 Feb 1973] 9140/73 Heading F4G The invention comprises a method of drying material and the apparatus therefor. The method comprises the steps of circulating a drying gas and material around a circuit, feeding moist material to be dried into the gas in the circuit at a feed point where the gas is at a lower temperature than a critical temperature of the material, introducing hot drying gas at a temperature higher than the critical temperature of the material into a zone in the circuit in such manner that the hot gas is introduced into an inner region of the zone, the cooler circulated gas being introduced into an outer region of the zone surrounding the inner region, and continuously withdrawing spent gas carrying dried material from a withdrawal point in the circuit. The apparatus comprises an endless circuit through which drying gas and material may circulate, a manifold 1 defining a zone in the circuit, the manifold having a first inlet 15 on its axis for introduction of hot gas to an inner region of the zone, a second inlet 6 which is offset from the axis of the manifold and at the same end thereof as the first inlet for introducing previously circulated gas containing material to be dried into an outer region of the zone, an outlet 4, and a gas circulator, and feeder 7 for introduction of moist material to the circuit and an exhaust for removing spent gas and dried material from the circuit, the exhaust being connected between the outlet 4 and the feeder 7. A heater 12 is at the entrance to a duct 13 which opens into the manifold 1 through the inlet 15 which has vanes 14 to produce rotary flow of the incoming gas. The hot gas is surrounded by cooler gas carrying the material to be dried, the hot gas cooling as the material is dried. At the outlet 4 a baffle 40 separates the dried from the undried material, the lighter dried material is conveyed to a collector 9 and gas is drawn off through an exhaust fan 10, the heavier undried material passes into a duct 3 for recirculation. The material to be dried may be polypropylene with melting point 150‹ C., air at 225‹ C. enters the inlet 15 and emerges from the exhaust fan 10 at 75‹ C. The drying gas may be nitrogen or combustion gases from a fuel gas.