baber/WOPTO huggingface dataset:
Patent GB-1169369-A (GB)
Title: Improvements in electrically operated heat transfer devices.
Inventor: JACKSON JACOB
IPC: H05B3/78
Filed: 1966-06-20
Abstract: 1,169,369. Immersion heaters. J. JACKSON. 19 June, 1967 [20 June, 1966], No. 27395/66. Heading H5H. [Also in Division H1] An immersion heater comprises a flat nichrome wire 2 wound on a flat mica former 1, the whole being contained in a closed flat copper envelope 4, and the envelope sides being pressed together by evacuation. The wire 2 is separated from the envelope 4 by mica sheets 3 or sintered p.t.f.e. or silicone rubber sheets, wire 2 being moistened with silicone fluid, or beryllia sheets. Envelope 4 may have an external film of p.t.f.e. or a silicone preparation. The wire 2 comprises two windings (6, 7, Figs. 5 and 6) whose leads (9, 10, 11) pass through a sealed tube (5, Fig. 1) containing water-absorbent alumina or silica gel, and are coated with p.t.f.e. Insulating strips are added so that the I-shaped former is built up to a rectangular shape.
Patent GB-1475689-A (GB)
Title: Raney nickel hydrogenation catalyst
IPC: C07C209/48
Filed: 1974-06-07
Abstract: 1475689 Amines P JOWETT 7 June 1974 [8 June 1973] 27420/73 Heading C2C [Also in Division B1] An aliphatic amine with a chain length distribution similar to that of animal tallow is made by the hydrogenation of the corresponding nitrile using a Raney Nickel catalyst dispersed in a mixture of the amine and water and in the presence of ammonia.
Patent GB-987237-A (GB)
Title: Improvements in or relating to protective devices for motion transmission systems
IPC: B23D36/00
Filed: 1961-07-28
Abstract: 987,237. Electric control systems. KOPPERS CO. Inc. July 28, 1961 [Aug. 29, 1960], No. 27468/61. Heading G1N. [Also in Division H2] A cut-off knife actuating system in corrugated paper making machinery, in which a pair of cut-off knives 11 are driven from a shaft 9 through a variable speed transmission 12, is provided with means for preventing adjustment of the variable speed transmission at shaft speeds below a certain minimum. A sheet length control system 17 is provided for manual, semi-automatic or automatic adjustment of drive 12 to vary the length of sheet which is severed. Coupled to the input shaft 13 of variable speed drive 12 is a tachometer generator 20 whose output voltage is applied to a relay coil 23. When the speed of shaft 13 reaches a predetermined value relay 22 operates and contacts 24 close, which causes relay 27 to operate and close contacts 28, 35. Contacts 35 switch on the control system 17, while contacts 28 connect a resistor 31 in parallel with relay coil 23 and reduce the voltage drop across the coil so that only a small reduction in speed of the main drive shaft causes relay 22 to drop out. A Zener diode 25 acts as a voltage regulator to prevent the relay coil burning out. In a second embodiment a voltage indicative of the speed of the main drive shaft is derived from the armature of the main drive motor. The relay coil consists of two parts connected in parallel, one part being in series with a variable resistor and a pair of normally closed relay contacts. A pair of normally open contacts is connected to the sheet length control system. When the relay pulls-in the control system is energized, and one part of the relay coil is disconnected so that the relay only just holds in. Specifications 805,318 and 902,231 are referred to.
Patent GB-533104-A (GB)
Title: Improvements relating to carburetters for gas engines
IPC: F02M21/04
Filed: 1939-10-09
Abstract: 533,104. Mixing air and gas. BURROUGHS. H. 0., and HALSALL, A. Oct. 9 1939, No. 27475. [Class 7 (ii)] Air is admitted through apertures 4 controlled, by a sliding sleeve 5 and is mixed with gas supplied through a nozzle 8. - In the gas supply pipe 10 is a control valve which is connected by a linkage to the sleeve 5. The nozzle 8 is screwed into a housing 7..
Patent GB-814876-A (GB)
Title: Method and device for the feeding of heels
IPC: A43D79/00
Filed: 1955-09-27
Abstract: 814,876. Feeding heels. SVIT, NARODNI PODNICK. Sept. 27, 1955 [Sept. 27, 1954], No. 27487/55. Class 17(1) [Also in Group XXX] A device for feeding heels 1 to a working station comprises a magazine 2 for heel blanks which is open at the front and rear at least adjacent the base plate 7 on which it is mounted, a pusher member 13 slidable in the base plate for movement through the magazine towards the working station, and a pressure rail 8 which engages the lowermost heel in the magazine, is slidable along the base plate in the feeding direction, and is biased against feeding movement. The magazine comprises two side walls 3 adjustable widthwise of the heel, projections 4 adjustable lengthwise of the heel, and rollers 5 with reduced portions 6. When the lowermost heel is fed the next heel drops on to the base plate and is centered when springs 11 return rail 8 which engages that heel and presses it against portions 6. The pusher member 13 is moved, by rack 14 and gears 15, 16, between portions 6 to push the centered heel into position under the pick-up means 17, comprising prongs 18 secured on a head 19 and passing through a resiliently mounted disc 20. When this heel has been picked up, member 13 is positively returned, rail 8 is returned by springs 11, and the lowermost heel, which has fallen on to the base plate, is centered. Specification 814,875 is referred to.
Patent GB-1472064-A (GB)
Title: Treatment of natural rubber
IPC: C08K5/25
Filed: 1973-06-08
Abstract: 1472064 Treating natural rubber MALAYSIA RUBBER RESEARCH INSTITUTE BOARD OF 7 June 1974 [8 June 1973] 27534/73 Headings C3E and C3Q Fresh natural rubber is treated to reduce storage hardening by mixing with the rubber one or more organic acid hydrazides containing a single group Examples are given in which naphthenic acid hydrazide or 2-ethylhexanoic acid hydrazide is added to deproteinized rubber, to field latex or to ammoniated latex.
Patent GB-1437853-A (GB)
Title: Surge voltage arresters
IPC: H01T4/12
Filed: 1974-06-21
Abstract: 1437853 Spark gaps SIEMENS AG 21 June 1974 [6 Nov 1973] 27600/74 Heading H1D A surge voltage arrester comprises a tubular body 3 made of a semiconducting material, and two electrodes 1 or 2 mounted in gas-tight fashion to face one another at respective ends of said body. The semiconducting material may be a doped metal oxide, e.g. zinc oxide and/or titanium oxide and/or copper oxide and/or iron oxide, doped with bismuth oxide or cobalt oxide. The body 3 has a shoulder at each end so that the arrester can be readily installed in a tubular metal holder. An additional central annular metal electrode may be provided.
Patent GB-276383-A (GB)
Abstract: 276,383. Brodton, E. R., Hollis, R. H., and Miner, H. A. Feb. 22, 1926. Vapour engines.-A liquid, consisting substantially of methylene chloride, suitable for driving engines or motors is produced by the chlorination of wood alcohol or a mixture of methanol and acetone, the resulting product being rectified to produce a liquid having a boiling point between 40‹ C. and 60‹ C.
Patent GB-498197-A (GB)
Title: An improved method of dressing floury stocks
IPC: B07B1/38
Filed: 1937-10-12
Abstract: 498,197. Sifting-apparatus. JONES, C. R., and FISHER, E. A. Oct. 12, 1937, No. 27708. [Class 117] Throughs from the coarser sieves of a plansifter are fed to a restricted portion of another screen or on to a screen of smaller width. The width of the finer screens is preferably such that the rate of feed is one pound per minute per inch width. In the form shown, the plansifter has two sets of sieves side by side. Stock is fed in two parallel streams into each set, one stream being fed to sieve a followed by sieve d and the other to sieve b followed by screen c. In each set, half of the throughs from the four above mentioned sieves is fed to one of a pair of finer sieves e of half the width and the tailings from narrower sieves e pass in turn to sieves f, g, h, i, j and the tailings from the latter sieve leave by the outlet 13. The throughs from both sets of sieves e-j reach a restricted portion of sieve k and the tailings from sieve k reach sieve l and the tailings from sieve l leave by the outlet 15. The sieves k and l have partitions so arranged as to reduce their width but increase the travel of the material. One set of sieves only may be provided.
Patent GB-1106746-A (GB)
Title: Apparatus and circuit arrangement for high-speed excitation of electromagnets
IPC: H01F7/18
Filed: 1965-06-30
Abstract: 1,106,746. Supply circuits for electro-magnets; capacitor arrangements. FRANZ MORAT G.m.b.H. 30 June, 1965 [1 July, 1964], No. 27711/65. Heading H2H. In the circuit arrangement shown for providing high speed energization and increased frequency of actuation of an electro-magnet M, the former condition is provided by a charged condenser C whose voltage assists the operating voltage U B1  when switch S is closed to energize the operating coil AW, subsequent current flow after the condenser is discharged being through a diode D 1 . When switch S is opened the condenser C is recharged, in readiness for another electro-magnet operation, by the voltage pulse induced in an auxiliary coil HW linked with the magnetic field produced by the coil AW. The negative side of condenser C may be connected to a tapping on the winding HW, Fig. 4 (not shown). In another modification, Fig. 5 (not shown), the energization time is further reduced by raising the operating voltage and interposing a resistance between the coil AW and the switch S. This modification may be further altered by replacing the switch S by a transistor and permanently connecting the condenser C to a charging voltage which prevents discharge during idle periods prior to operation. The circuit of the invention may be used for electro-magnets forming part of a knitting machine of the type described in Specification 1,009,624. Application to impulse operated step-motors is also envisaged.
Patent GB-299990-A (GB)
Title: Improvements in non-return valves
IPC: F16K15/03
Filed: 1927-10-19
Abstract: 299,990. Blakeborough, R. A., Tart, H., and Brotherton, C. Oct. 19, 1927. Fluid-actuated valves; electrically-actuated valves.-A non-return hinged valve is held in the open position by a catch device under the dual control of a paddle disposed in the waterway and a solenoid controlled by the circuit supplying the motor driving the supplying pump. The valve member b is carried by an arm e secured to a shaft c mounted on a. removable member d and is normally held in a recess a<2> in the casing a by catch h<1> engaging a weighted lever secured on the outside of the casing to the shaft c. The catch which is counterweighted at h<4> is pivoted to a spindle g adapted to be reciprocated by a handwheel g' and is provided with an arm h<3> engaging a sliding rod i normally held in its raised position by a spring i<1>. The catch is released by a falling weight supported by a cord j' passing over a pulley j<2> and normally held in its raised position by a catch m. The catch m is connected by a link p to the core r of a solenoid s and by a link m<1> and pin and slot connection with an arm n' on a shaft n carrying a paddle o'. Projections o<2> are formed on the paddle arm to limits its movement.
Patent GB-1069395-A (GB)
Title: Improvements in roller tables for use in rolling mills
Inventor: SACK THEODOR
IPC: B21B39/00
Filed: 1965-06-30
Abstract: 1,069,395. Rolling. MASCHINENFABRIK SACK G.m.b.H. June 30, 1965, No. 27750/65. Heading B3M. [Also in Division F2] The rollers 1, Fig. 1, are journalled in the side walls 5 of a roller table by roller bearings 2, 2<SP>1</SP> carried in casings 3, the latter being secured in the table by wedges 7, 8. Each casing has a pair of lugs 4 which straddle wall 5, and aligned apertures 4a in the lugs register, although not in complete alignment, with an aperture 6 in wall 5. Wedges 7, 8 are moved relatively to each other by a screwed pin 9. The wedges may be replaced by eccentric pins.
Patent GB-654607-A (GB)
Title: Improvements in or relating to wrenches or similar appliances for use in securing orreleasing the covers of containers and for other purposes
IPC: B67B7/18
Filed: 1948-10-26
Abstract: 654,607. Wrenches. HALL, W. Oct. 26, 1948, No. 27784. [Class 61 (iii)] A wrench for bottle covers and the like comprises a flexible band a, e.g. of copper or fabric, which is secured pivotally at its ends to a rigid link d, one end being also secured to a handle b by a screw c<SP>1</SP>. The band may be reduced in effective length, for small covers, by looping it through the link, as shown at a<SP>1</SP>.
Patent GB-863417-A (GB)
Title: Process for strengthening hollow bodies of plastic material
IPC: B29C48/885
Filed: 1957-09-03
Abstract: 863,417. Treating polyolefin articles. FARBWERKE HOECHST A.G. Sept. 3, 1957 [Sept. 6, 1956], No. 27833/57. Drawings to Specification. Class 2(6). Strengthened hollow bodies of polyolefins are prepared by the expansion and subsequent cooling of heated hollow bodies, the expansion being carried out at a temperature between that. which just avoids a neck formation and the crystallite melting point. Specified polyolefins are polyethylene, polypropylene, ethylene-propylene copolymers, all preferably low-pressure polymers, and mixtures with one another or with polyvinyl chloride.
Patent GB-902955-A (GB)
Title: Improvements relating to face mill cutters of the alternate blade type
IPC: B23F21/24
Filed: 1960-08-11
Abstract: 902,955. Gear-cutters. GLEASON WORKS. Aug. 11, 1960 [Aug. 26, 1959], No. 27845/60. Class 83 (3). A face mill cutter for cutting a spiral bevel or hypoid gear by the intermittent indexing method comprises alternate inside (I, III, V and VII) and outside (II, IV, VI and VIII) cutting blades, the angular spacing (C) between adjacent inside (15) and outside (17) cutting- edges in one direction being greater than that (D) between outside and inside edges. The cutter is dimensioned so that only one blade cuts at a time, and is used in the method described in Specification 884,741. The edges are offset radially as exaggeratedly shown in Fig. 7 to take a finishing-cut on a roughed-out blank, the offset being one to five-thousandths of an inch. The blades VII and VIII do no bottomcutting. Similar blades are spaced at 72 degrees (A=B) but the angle C is greater than D. This is distinct from previous practice for cutting a tooth-space 28, Fig. 5, where the blades were spaced by the angle H, at least, whereas they need be spaced only by the angles F, and E, the latter being the greater. In order that the inside blades will cut to the same depth they are advanced axially relatively to the outside blades. Specifications 459,654 and 884,744 also are referred to.
Patent GB-461203-A (GB)
Title: Improvements in or relating to electromagnets for lifting and other purposes
IPC: H01F7/08
Filed: 1935-10-11
Abstract: 461,203. Control systems for electromagnets. EQUIPMENT & ENGINEERING CO., Ltd., and SWIFT, H. B. Oct. 11, 1935, No. 28032. [Classes 35 and 38 (iv)] [Also in Groups XXIII and XXXVI] Condenser arrangements; switching control.-The remanent magnetism of a magnetic chuck, lifting- grab, or flaw-detecting device is neutralized by passing the discharge current of a condenser through the winding of the apparatus, a switch being provided to enable the condenser to be charged when the winding is energized and to reverse the connections between the winding and condenser when the supply is disconnected. In the form shown, the winding A of the electromagnetic device is energized from the supply and the condenser E is connected in parallel with it when the switch B is thrown upwards. When the switch is thrown downwards to disconnect the winding from the supply, the condenser is connected across the winding but with its connections reversed so that the condenser discharge current demagnetizes the material. Additional condensers may be used if required. Instead of the switch shown, a hand or foot operated frum switch may be used.
Patent GB-954497-A (GB)
Title: Improvements in capping devices
IPC: B67B3/14
Filed: 1960-08-12
Abstract: 954,497. Bottle-capping machines. A. PODESTA, and C. VIGNATI. Aug. 12, 1960 [Aug. 18, 1959], No. 28051/60. Heading B8T. A bottle-capping head comprises an annular clamping member having fingers 212, a deformable sleeve 15, and means for causing frustoconical surfaces on the sleeve and clamping member to slide upon one another thereby constricting the fingers 212 round a cap 3, 4 fitted to the mouth of a container. The fingers 212 depend from a ring 112 movable relative to the sleeve 15. A cap presser 9 has a guide stem 10 slidable through the bore 106 of a flange 6 formed in a tubular head 8, the upper part 108 of which is joined to a reciprocating press. A spring 19 compressed between a washer 11 and the flange 6 urges the cap presser 9 downwards to the limit permitted by an abutment 14 on the stem 10. A further spring 20 enables the ring 112 to yield slightly until the bottle cap is firmly seated, thereby ensuring that the fingers 212 are not pressed inwards until the cap bead 7 is in position. The cap comprises an inner part 3 of synthetic plastics material, e.g. polythene, which acts as lining and a metallic part 4. Operation.-The cap is seated on the bottle mouth as in Fig. 1. From this position it is pressed down on the neck by the presser 9 as the head 8 is moved downwards. Further movement of the head 8 against the action of spring 19 causes the cap to be encircled by the fingers 212. As the head 8 continues to descend, the sleeve 15 moves down against the fingers 212 causing them to press in the cap skirt.
Patent GB-232170-A (GB)
Title: Machine for the breaking and scutching of flax or other similar textiles
IPC: D01B1/22
Filed: 1924-11-25
Abstract: 232,170. Molinari, C. de. April 9, 1924, [Convention date]. Breaking and scutching apparatus; grip-chain and like arrangements for feeding, holding, and conveying fibrous materials. - In a machine for beating and scutching flax and similar materials the stalks are laid across feed belts 1, Fig. 1, and carried on to cables 3 running in grooves in a table 5 on which the stalks are beaten by flat or grooved stamps 7 operated by cams 10. The stamps cover the whole of the table and split and reduce the stalks to four superposed ribbons, two outer fibrous ribbons, and two inner ligneous ribbons. The stalks then pase on to a belt 12, Fig. 4, which, acting in conjunction with a guide 13, turns them into a vertical position, root upwards. The belt passes through a half-turn and is provided with U-shaped claws 14 having points 15 arranged in staggered formation. The material is then gripped between belts 19, 21, similar to the belt 12, and carried between scutching-devices 26, 27. The claws on the belts 19, 21 interlock and the belts are pressed together by spring-supported rollers. The scutching-devices comprise interlocking blades which are oscillated to approach and recede from one another by cranks. The devices are arranged in groups of two pairs, the blades of the second pair being closer together than those of the first pair. The space between the blades of each device decreases from top to bottom, and the blades of the first pair are prolonged in an horizontal direction. The material after the treatment of the lower end is doubled upon itself, so that the untreated root end lies alongside the treated portion and is then passed through further scutching-devices similar to those described. Whilst the upper portion is still held by the belts 19, 21, Fig. 21 the disc 30 passes the treated portion to one side. of a cable 32, which passes into the deeper central groove of a pulley 34 carrying two outer cables 33. When the upper end of the material is released it falls over on the other side of the cable 32 and is gripped on that cable by the lower cables 33, Fig. 23, which are pressed together by resiliently supported rollers 37. The cable 32 runs out beyond the cables 33 and carries the fully treated material out of the machine, being returned under the machine over guide pulleys 36.
Patent GB-880671-A (GB)
Title: Improvements in or relating to windscreen wiper arms for automotive vehicles
IPC: B60S1/34
Filed: 1960-08-16
Abstract: 880,671. Windscreen wipers. SWF-SPEZIALFABRIK FUER AUTOZUBEHOER G. RAU, G.m.b.H. Aug. 16, 1960 [Aug. 22, 1959], No. 28277/60. Class 138 (1). The inner end of a windscreen wiper arm 16, Fig. 4, is secured to a casing 1 receiving a head 6, to be clamped on the wiper shaft (not shown), and having pivoted hereto by a pin 11, Fig. 3, a plate 10 having shoulders supporting a spring 14 adapted to abut against a wall 15 of the casing 1. The spring 14 urges lugs 12, 13 on the head 6 into grooves 4, 5 in the casing I inclined to the axis of the arm 16 and thereby urges the arm 16 towards the windscreen. The casing I may be of plastics material, but alternatively it may be of metal in which slots are provided in place of the grooves 4, 5.
Patent GB-1079778-A (GB)
Title: Improvements in or relating to large output high frequency inductance coils
IPC: H01F21/12
Filed: 1965-07-05
Abstract: 1,079,778. Inductors. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. July 5, 1965 [Aug. 6, 1964], No. 28419/65. Heading H1T. An inductance coil comprises conductor portions a, b, c, d, e, f, adjustably connected by " trombone " sliders B1-B7, and provided with contact blocks A1-A6 each connectible with pins in a busbar S so that parts of the circuit between terminals N, M can be short-circuited as desired in order to reduce the inductance of the coil in steps. In a modification (Fig. 2) the " trombone " sliders are replaced by slidable clamps. The coil may be gold-plated. Some of the conductor portions may be of reduced cross-sectional area.
Patent GB-408333-A (GB)
Title: Improved construction of sluice or like valve
IPC: F16K3/18
Filed: 1932-10-12
Abstract: 408,333. Sluice valves. TIMPSON, A. F. C., 155, Minories, London. Oct. 12, 1932, Nos. 28443 and 32038. [Class 135.] In sluice &c. valves wherein two discs 4, 5 are moved in their own planes by a screw rod 15, being opened out to ensure a tight closure with the final movement of the rod which expands balls 14 owing to the engagement of a plunger 18 on the carrier ring 12 with a stop 25 on the casing, tubular walls or bosses 6, 7 are formed on the valve discs, being loosely connected by screws 8 projecting into a groove 9. The tubular walls may telescope as shown in Fig. 1, or may be of the same diameter and encircled by a separate ring (Fig. 2, not shown).
Patent GB-207950-A (GB)
Title: Improvements relating to the suction pipes of suction dredgers
IPC: E02F3/90
Filed: 1922-10-20
Abstract: 207,950. Lobnitz & Co., Ltd., (Robinson, A. W.). Oct. 20, 1922. Dredgers.-To enable, the mouth of the suction pipe of a dredger to be always presented at a constant angle irrespective of the depth of the channel being dredged, the suction pipe is pivoted to the inboard suction main in the usual manner but is formed in sections joined together by means of a universal joint comprising ball and socket members 10, 11, Fig. 4, and flexible members 14 which pass through the guides 15 and are connected by means of the pins 13 to the lugs 12 oppositely disposed in the socket portion. Alternatively the two sections of the suction pipe may be joined by means of an ordinary pivoted joint and the upper section connected to the dredger by means of the elbow joint shown in Figs. 5 and 7. This joint is also substantially universal, the ball member formed on the elbow being held in position within the - socket by means of the flexible member 14a.