baber/WOPTO huggingface dataset:
Patent GB-1381682-A (GB)
Title: Fastener driving device
Inventor: BURKE JR G E
IPC: B25C7/00
Filed: 1973-05-01
Abstract: 1381682 Fastener driving tools TEXTRON Inc 1 May 1973 [5 May 1972] 20596/73 Heading B4C A fastener driving tool is operated by fluid pressure (compressed air), under the control of an actuating member 20 movable from an inoperable position, Fig. 2, into an operative position, Fig. 5, enabling means 36 being provided to enable movement of (1) the trigger 30 into its operative position when the work contact responsive member 26 is in its inoperative position without movement of the actuating member (2) the trigger into its operative position when the work contact responsive member is in its operative position to effect movement of the actuating member into its operative position, and (3) the work contact responsive member into its operative position when the trigger is in its operative position without movement of the actuating member. As shown in Fig. 2, the trigger 30 is urged to its inoperative position about a pin 32 by a spring 34 and the enabling means 36 is urged anticlockwise about a pin 40 of the actuating member 20 to the limit of a stop 48 by a spring 46. The enabling means 36 consists of a U-shaped portion 38 carrying an arm 42 for contact by the work contact responsive member 26 and an arm 44 for co-operating with a pin 50 carried by the trigger. The member 26 is urged towards the workpiece by a spring 28. When, in Fig. 2, the trigger is pulled the pin 50 moves up to the upper position shown by the dotted line without engaging the arm 44 so that the actuating member 20 remains unmoved. If the trigger is held in this position and the member 26 is now lifted, the arm 44 swings beneath the pin 50 and the actuating member 20 still remains unmoved, Fig. 6 (not shown). When only the member 26 is lifted, the arm 44 swings above the pin 50 and again the actuating  member 20 remains unmoved, Fig. 4 (not shown). Movement of the actuating member occurs only if the member 26 is lifted before the trigger is pulled, the pin 50 engaging and lifting the arm 44 as shown in Fig. 5. To prevent double firing due to rebound the pin 50 and arm 44 are arranged to disengage after a predetermined downward travel of the member 26, Fig. 7 (not shown). In a modification, Fig. 8 (not shown), double firing is prevented by making the arm (44) slightly longer such that after the member (26) has been moved to its inoperative position, movement of the trigger towards its inoperative position a predetermined distance will disengage the pin (50) and arm (44). In another modification, Fig. 9 (not shown), double firing is prevented by forshortening the arm (44) such that with the member (26) and the acutating member (20) moved into their operative positions, a movement of the trigger to the operative position causes disengagement of the pin (50) and arm (44). In a further modification, Figs. 10-13 (not shown), the enabling means (136) is pivoted about a pin (140) secured to the upper end of the work contact responsive member (126) and an arm (142) makes sliding contact with the lower end of the actuating member (120).
Patent GB-590907-A (GB)
Title: Improved process of manufacturing tanning extract from concentrated sulphite cellulose waste liquor
IPC: C14C3/24
Filed: 1944-10-25
Abstract: 590,907. Tanning-agents. SCHULLER, K. Oct. 25, 1944, No. 20705. [Class 76] A tanning extract with a low content of alkaline salts and of organic non-tanning substances is prepared from sulphite cellulose waste liquor by adding, preferably after concentration of the liquor, a water-miscible liquid organic substance which dissolves the ligno-sulphonic acid but precipitates alkaline salts, and removing the precipitate. Suitable organic liquids are methyl or ethyl alcohol, alcohol prepared from sulphite cellulose waste liquor, and acetone. Before adding the organic liquid the liquor may be made alkaline, e.g., with sodium or potassium carbonate, ammonia distilled off, and acid added to form alkaline salts. By adjusting the quantity of alcohol used (e.g., from “ to 3 parts per part of liquor) and the time allowed for precipitation (e.g., ¢ to 24 hours), tanning extracts of above 60, per cent purity may be obtained: After removal of the precipitate the alcohol is distilled off and recovered.
Patent GB-725246-A (GB)
Title: Improvements in or relating to the stopping of containers
IPC: B65D39/00
Filed: 1953-07-27
Abstract: 725,246. Stoppers. SOC. D'EXPLOITATION DES ETABLISSEMENTS LICK ET DES BREVETS PARAMOUNTS. July 27, 1953 [July 28, 1952], No. 20821/53. Class 125 (3). A stopper for rubber hot water bottles, ice bags &c. is of rubber and comprises a head 1 with perpheral bead, 2 and a skirt 3 chamfered at 4 and having a bead 5, the container neck having a ring member consisting of a cylindrical body 6 having a bead 7 at its upper end which is engaged by the bead 2 of the stopper and a groove 9 which is engaged by the bead 5.
Patent GB-339659-A (GB)
Title: Improvements in the manufacture and production of dyestuffs and intermediate products
IPC: C09B3/40
Filed: 1929-07-08
Abstract: 339,659. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). July 8, 1929. Ms - Naphthodianthrones, allo - ms - naphthodianthrones and ms-anthradianthrones are treated with nitrating agents, and the nitro groups in the nitro compounds thus obtained are partially or wholly reduced or directly replaced by halogen, if desired. As nitrating agent may be used concentrated nitric acid alone, or admixed with water. sulphuric acid, phosphoric acid, oleum or chlorsulphonic acid, and nitration is preferably effected in the presence of diluents such as mono-, di- and trichlorbenzene, bromobenzene, or quinoline. When nitrating with nitric acid in the presence of inorganic diluents such as sulphuric acid, simultaneous oxidation leading to the formation of hydroxy compounds, or dehydrogenation may occur; thus allo-ms-naphthodianthrone may be converted to nitro-ms-anthradianthrone. The replacement of the nitro group or groups in these compounds by halogen is effected by treating the compounds directly with halogens or agents which split off halogen, such as benzoyl chloride. In the case of the lower nitrated products further halogenation in addition to replacement of nitro groups by halogen, may occur. In examples, (1) allo-ms-naphthodianthrone is treated with nitric acid in nitrobenzene whereby mono- and dinitro-derivative are obtained; treatment with concentrated nitric acid alone gives a tetranitro derivative dyeing grey shades. Dichlor-allo-ms-naphthodianthrone (prepared according to Specication 303.184) treated with nitric acid in nitrobenzene yields a mononitrodichloro derivative; (2) ms-naplithodianthrone treated wth a mixture of nitric and sulphuric acids yields a mononitro derivative which yields with alkaline reducing agents the monoamino derivative; (3) ms-anthradianthrone is treated with nitric acid in nitrobenzene: (4) the mononitro-alloms-naphthodianthrone of (1) above is boiled with aqueous sodium sulphide to give the monamino derivative. Other reducing agents such as hydrazine hydrate or sodium hydrosulphite may be used, and by these means the other nitro derivatives specified above mav also be reduced. If this mononitro derivative is boiled with benzovl chloride an orange-red dyeing monochloro-allo-ms. naphthodianthrone is obtained.
Patent GB-1298187-A (GB)
Title: An electrically driven instrument with low power consumption
IPC: G04C10/02
Filed: 1971-04-19
Abstract: 1298187 Electronic timepieces KIENINGER & OBERGFELL 19 April 1971 [30 Jan 1970] 20989/71 Heading G3T An electric timepiece is powered by photo-cells Z 1  Z 2  Z 3  Z 4  Fig. 2 and is provided with a main spring 3' as reserve power for use during low light intensity conditions. The cells energize an astable multi-vibrator circuit 1 including transistors T 1 , T 2 , which in turn energizes a motor 2 producing drive current pulses through the motor coil 17 coupled to a magnet 18 subtended by an oscillatory pendulum member 23. A spring member 19 of the motor is secured to the timepiece casing by a screw 20. Resilient members 25 prevent lateral oscillation. A pawl 27 on the member 23 engages teeth of a ratchet wheel 29 which is coupled via the timing gear train to the hour and minute hands 54, 49. The motor also winds the spring via an overrunning clutch 15 comprising a gear wheel 37 a shaft 38 and pinion 39. The shaft 38 is adjustable relative to the gear 37 by means of a locking mechanism, including a ratchet wheel 41, pawl 42 and wire spring, against the effect of the back thrust from spring case 40 produced by the spring therein. Overwinding of the spring is prevented by an arrangement including a nut 64, the position of which on a lead screw 63 extending from the spring case is indicative of the degree of winding. When the storage level of the spring is at a predetermined value the nut opens a switch 68 in the base circuit of transistor T 1  and thereby stops energizing current pulses to the motor 2. The timing gear train is regulated by a torsion pendulum (not shown) coupled by a pin 62 to an 'anchor 61 and pallets 59, 60, which engage an escapement wheel 58 in known manner. The oscillations of the vibratory motor are effective to frequency synchronize the astable multi-vibrator. Duration of the current pulse through coil 17 is determined by the time constant of C 2 , R 3  and that of C 1  and the resistance of coil 17. The intervals between pulses is determined by the time constant of C 2  R 2 . Instead of interrupting the base circuit the travelling nut may apply a mechanical brake to the motor Fig. 3 (not shown) or may be arranged to lift the pawl 27 away from the ratchet wheel 29. The spring may be manually wound by means of a square end on an extension 16 of shaft 38.
Patent GB-1171402-A (GB)
Title: A Static Binary Counter
IPC: H03K21/00
Filed: 1967-05-05
Abstract: 1,171,402. Electronic counters. BOLKOW G.m.b.H. 5 May, 1967 [13 May, 1966], No. 21094/67. Heading G4A. A reversible gated counter has a first stage which responds to every input pulse while only the second stage is affected by the direction of count. Forward or reverse count pulses are applied respectively to terminals V U , V G  or R U , R G  so as to influence NAND gates 1-4, only one of which produces 1 at any time but transfer of output 1 from one gate to another being able to operate one or other NAND 5, 6 for reverse or forward count respectively. Starting from a zero input on lead 10 which enables an RS flip-flop FF1, a pulse from one of gates 1-4 produces an output from either 8 or 9 to set FF1 in one condition or the other, according to whether the count is forward or reverse. NAND gates 11, 12 assume conditions such that the output of NAND 13 becomes 1 and 0 in response to odd and even pulses, the inverse appearing at the output of NAND 14. These outputs represent the lowest binary order and appear also at Z 0  and Z 0 , as well as being applied together with the forward or reverse signals #R, R from NANDs 6, 5 to the next binary order A. This order is shown in Fig. 2 as comprising a preliminary store comprising NAND gates 15, 16 fed through AND gates by two pairs of NANDs 19, 20 and 21, 22, and a main store 17, 18 fed in like manner by 23, 24 and 25, 26 with feedback from the main store to the preliminary store. Outputs c 1 , d 1 , e 1 , f 1  go to the next higher order B 2 . Excluding the input circuit EG the preliminary stores operate to a Gray code, but the main stores in combination with EG operate in pure binary code with outputs on Z 0 -Z n . Resetting is effected over terminals Ve 1 , Ve 3  while setting to a specific number is over Ve 2 , Ve 4 . Reversal of count results in the loss of the first pulse after reversal so that compensation must be made in reading a negative result, indicated by 1 on output Z n . The invention is applied to a digital position encoder such as described in Specification 1,116,886.
Patent GB-995830-A (GB)
Title: Vane wheel propeller
IPC: B63H1/10
Filed: 1964-05-22
Abstract: 995,830. Blade wheel propellers. J. M. VOITH G.m.b.H. May 22, 1964 [May 31, 1963], No. 21201/64. Heading B7G. A blade wheel propeller comprises an elastic membrane 9 extending generally perpendicular to the propeller axis and connecting the propeller shaft 8 to a coaxial driving member 4. In the Figure, the propeller is mounted on a ship's hull with its axis vertical, and is driven through gearing 1, 2, 3 and 4, the latter gear having a truncated conical web 15 so that its periphery, to which membrane 9 is attached, overhangs the propeller shaft 8. The use of the membrane 9 enables the propeller shaft 8 to be supported by a single radial bearing 10 and thrust bearing 11, and the gear 4 by a single radial bearing 14. The pitch of the blades is controlled by a lever 16 mounted within shaft 8 by a universal joint 17 located in the plane of membrane 9.
Patent GB-336286-A (GB)
Title: Improvements in helmets for aviators
IPC: A42B3/30
Filed: 1929-07-11
Abstract: 336,286. Graham Amplion, Ltd., and Sinclair, D. July 11, 1929. Head-sets.-Helmets or like head coverings for aviators or motorists, of the kind having side-flaps for protecting the ears, have a telephone receiver or receivers mounted in the side flaps and a transmitter or transmitters 18, 19 carried by supports on or close to the flaps to engage the wearer's face above the lip, beside the nose and just below the prominence of the cheek bone. The microphones mav be of the kind described in Specification 326,310. Specification 8945/06 also is referred to.
Patent GB-1387651-A (GB)
Title: Electric flat-iron with overtemperature protective means
IPC: D06F75/26
Filed: 1972-05-09
Abstract: 1387651 Electric irons GENERAL ELECTRIC CO 9 May 1972 21479/72 Heading D1A [Also in Divisions C7 and H1] An electric flat-iron has a thermostat to maintain the soleplate at a normal working temperature and a thermal cut-out to open the circuit if the thermostat fails to protect the soleplate against reaching an abnormally high temperature which would cause the soleplate to melt. The cut-out 66 comprises a resilient stainless steel spring strip 68 soldered or bonded to a wire 70 of manganese nickel by a eutectic alloy 72 which melts at a predetermined temperature so that strip 68 springs away from wire 70. The alloy 72 is heated partly by heat from the sole-plate and the surrounding parts by conduction, connection and radiation and partly by an increment of heat from strip 68 generated in strip 68 by its own internal resistance, this increment being insufficient to increase the temperature of alloy 72 to its melting point at normal working temperature but sufficient to increase alloy 72 to its melting point of the thermostat does not open the circuit before an abnormally high soleplate temperature occurs. The alloy 72 is of 1.5% silver, 1% tin, 97.5% lead and less than 0.4% antimony and has a melting point at 588‹F. The soleplate is of aluminium and the normal maximum working temperature of the soleplate is around 550‹F and the cut-out opens the circuit prior to a soleplate temperature of 950‹F, the curves showing the relationship between the alloy 72 temperature and the soleplate temperature being in Figs. 4, 5, 6 (not shown) and the soleplate starting to melt between 900 and 1100‹F. The thermostat is bimetallic and adjustable for different materials being ironed. Wire 70 is connected to one end 60 of the heating element and the electrical circuit of the iron is from supply terminal 42, through the thermostat to internal terminal 32, through cut-out 66, through the heating element to its opposite end 62, then to supply terminal 64.
Patent GB-649859-A (GB)
Title: Improvements in or relating to belt or rope tensioning means for belt gearing and the like
IPC: F16H7/16
Filed: 1948-08-14
Abstract: 649,859. Belt and rope gearing. DEAN, SMITH, & GRACE, Ltd., PRIDGEON, H., and BINNS, A. Aug. 14, 1948, No. 21499. [Class 80(i)] Means whereby the distance between coacting belt or rope driven pulleys may be decreased for belt removal is described as applied to a V-pulley 6. A driving shaft 1, supported in bearings 2, 3, is keyed in an eccentric bore of a bush 4 on which is mounted a further eccentrically bored bush. 5. The pulley 6 is concentrically bored and rotatably mounted on the outer bush 5, being normally locked to it by a screw 7. A screw 10 normally secures the bushes 4, 5 together but may be screwed inwardly to release the outer bush 5 and engage a bore 14 in the bearing bush 3 to lock the inner bush 4 thereto. The pulley 6 and bush 5 may then be rotated through 180 degrees about the locked bush 4 to displace the pulley for belt removal, and if the screw 7 is turned inwardly to bind on the screw 10 and release the pulley 6, belt removal is facilitated by the concentric rotation of the pulley on the bush 5. Keep plates 15, 16 are provided to restrain axially the pulley 6 and bush 5 respectively. Specification 594,212 is referred to.
Patent GB-421838-A (GB)
Title: Method and apparatus for reducing the evaporation of gasoline and recovering gasoline vapours in closed storage tanks
IPC: B65D90/30
Filed: 1933-07-31
Abstract: <PICT:0421838/III/1> The evaporation of gasoline in closed storage tanks is diminished by reducing the vapour tension of the gasoline vapours by direct contact with water or water vapour inside the tank. As shown, the gasoline tank 1 has, supported by transverse members 2, open vessels 17 and closed vessels 3, 4 supplied with water from a container 6 on the roof 7 of the tank through tubes 8, 18.  As the pressure increases within the tank the vapours pass through tubes 9, 5 into vessels 4, 3 in turn where they pass up through the water. The still uncondensed vapours are led to a bent tube 10 forming a water seal from which the uncondensed residue exhausts to the atmosphere.  By adjusting the water level in tube 10 the pressure of the vapour inside the tank may be controlled. The gasoline condensed in vessels 3, 4 overflows through conduits 11, 12 to the bottom of the tank 1.  Filling and discharging conduits 14, 13 are provided at the bottom of the tank.  A pipe 15 closed at the top by a screwed stopper 16 is provided to allow the level of gasoline in the tank to be determined by insertion of a measuring rod therein.  Automatic means may be provided to control the supply of water to the tank, the discharge of water from the bottom of the tank, and like operations.
Patent GB-462228-A (GB)
Title: Improvements in and relating to electric signal transmission systems
IPC: H04N5/21
Filed: 1935-07-29
Abstract: 462,228. Television. ELECTRIC & MUSICAL INDUSTRIES, Ltd., and PERCIVAL, W. S. July 29, 1935, No. 21523. Addition to 446,663. [Classes 40 (iii) and 40 (v)] Modifications are described for maintaining the light at a low value for received signals exceeding a predetermined amplitude. (1) Detectors 3, 12, Fig. 1, are provided in two parallel channels between the input of the receiver and the reconstituting apparatus, one 12 of the diodes is biassed by a potentiometer 14 to pass only the signal exceeding the predetermined amplitude, and the two channels pass current in opposition to an output impedance 11. All the signals are passed by the diode 3 and are attenuated by a condenser 4. A large bias for the diode 12 may be avoided by coupling it capacitively with the output impedance, Fig. 2 (not shown). (2) The output 22, Fig. 3, of the receiver is coupled to a cathode-ray tube 23 through two parallel paths, one of which contains a valve 26 so biassed that anode current flows only in response to the signals exceeding the predetermined amplitude, and is fed to the anode of the tube to decrease the brightness of the scanning-spot. Alternatively, the valve 26 is replaced by a biassed diode, which, when it passes current, applies the signal to the cathode of the tube, Fig. 4 (not shown).
Patent GB-1209206-A (GB)
Title: Ratchet plate
Inventor: PARKIN LESLIE
IPC: F16B9/02
Filed: 1968-05-07
Abstract: 1,209,206. Stud and socket fasteners. CARR FASTENER CO. Ltd. 18 Feb., 1969 [7 May, 1968], No. 21546/68. Heading E2B. [Also in Division F2] A ratchet plate formed of spring steel comprising a plate-like base 1 having an aperture through which a shaft or rod 5 is adapted to be inserted, a resilient tongue 3 integral with the base at a portion of the edge of the aperture, the tongue having a free edge adapted to make frictional engagement with the shaft or rod when inserted into the aperture, a pair of elongated arms 6, 7 extending from the said edge of the tongue, one arm extending from adjacent each of the opposed ends of the said edge so that the respective arms are disposed on opposed sides of the aperture for engagement by a tool T inserted over the base to effect pivotal movement of the arms away from the base to release the gripping action of the tongue on the inserted shaft or rod. As shown a second resilient tongue 8 is formed integral with the base in opposed relation to the tongue 3.
Patent GB-531533-A (GB)
Title: An improved machine or device for the dyeing of artificial silk cakes, hanks and thelike
IPC: D01D10/04
Filed: 1939-07-26
Abstract: 531,533. Dyeing &c. apparatus. RIGBY, A. July 26, 1939, No. 21677. [Class 15 (i)] Dyeing &c. apparatus comprises a bath fitted with pipes leading to and from a pump, and containing three concentric cylinders between the two innermost of which the material is placed, these cylinders being perforated and the arrangement being such that the liquid can be circulated inwards or outwards through the material. As shown, the bath is provided with two false bottoms h, i, the innermost cylinder r being supported by the latter. The other cylinders s, t are supported by the false bottom h and the material is compressed by a cover w, another cover z closing the outermost cylinder. The pump delivers through either of the pipes f, g, and, after passing through the material, passes to the outer space in the bath by pipes m or n to the pipe p ; interconnected change-over valves o, e are provided. In a modification, the cylinder t is supported on the bottom of the bath, and the cylinder s by the central cylinder.
Patent GB-441859-A (GB)
Title: Improvements in fire grates and stoves
IPC: F24B1/28
Filed: 1934-07-25
Abstract: 441,859. Hinges. DENT, C. H., 125, Orphanage Road, Erdington, Birmingham. July 25, 1934, Nos. 21718 /34, 3500 /35, 5816 /35, and 6450/35. [Class 65 (ii)] [See also Group XI] A pivot pin 32 on a flap 30 passes through a fixed bearing 33, which has V-shaped depressions 35, 36 into which a pin 34 on the pivot pin 32 is urged by the weight of the flap when the latter approaches either of its extreme positions.