baber/WOPTO huggingface dataset:
Patent GB-580438-A (GB)
Title: Improvements in chucks
IPC: B23B31/22
Filed: 1944-12-22
Abstract: 580,438. Chucks. WARING, A. Dec. 22, 1944, No. 25741. [Class 83 (iii)] In a chuck having a. rotary casing to effect the grip or release of the tool by hand whilst the spindle is rotating, the casing is provided with an additional cover to hide screws and other broken surfaces and protect the operator's hand. The tool 3 is gripped by jaws 2 when the casing 5 containing a cam ring 4 is rotated. Screws 7 hold stops 6 secure, to limit the travel of the casing. These screws have hexagonal or square recesses in their heads and are drilled axially to accommodate springs 10 and balls 9. The projecting sleeve 11 is provided with an internal annular groove 12 that engages the balls, allowing the sleeve to be freely rotatable and normally maintaining it in operative position, but permitting displacement when access to the screws is required.
Patent GB-1032305-A (GB)
Title: Fractionation process
IPC: B01D3/14
Filed: 1964-06-23
Abstract: <FORM:1032305/C4-C5/1> Water is removed from liquid hydrocarbon mixture by introducing the mixture into a fractionating zone, introducing a liquid dehydrating agent into the zone, withdrawing a liquid stream from a point in the zone wherein the temperature is above the freezing point of water, separating an aqueous solution of the dehydrating agent from the liquid stream and returning the remaining portion of the liquid stream to the zone.  Preferred dehydrating agents are methanol and ethylene glycol and the hydrocarbon mixture comprises propane, propylene, C2 and C4 hydrocarbons. As shown in the Figure, a mixture of hydrocarbons and dehydrating agent is introduced into fractionator 4 via line 36, the fractionator being supplied with hydrocarbon feed via line 2. A liquid stream is withdrawn via line 38 and aqueous alcohol solution is drained off from settling drum 40, residual hydrocarbons being returned to the fractionator via line 42.  The fractionator overheads in line 12 pass in admixture with alcohol from line 14 into condenser 18 and reflux phase separation drum 24, an alcohol solution being recycled via pump 30 to line 14, additionally supplied with fresh alcohol, a hydrocarbon alcohol mixture passes to line 36 and gaseous product hydrocarbons are removed through line 26.
Patent GB-1183886-A (GB)
Title: Process for Converting Toluene to Benzene and Xylene
IPC: C07C6/12
Filed: 1968-05-30
Abstract: 1,183,886. Disproportionating toluene. TOYO RAYON K.K. 30 May, 1968 [31 May, 1967; 2 Sept., 1967], No. 25949/68. Heading C5E. Toluene is disproportionated to benzene and xylenes with a disproportionation catalyst in the presence of 0À5-50 mol per cent based on the toluene of a C 9  aromatic hydrocarbon having one benzene ring. The disproportionation is effected in the vapour phase preferably at 300- 650‹ C. over a Friedel-Crafts type catalyst or solid acid catalyst such as 5i0 2 , Al 2 O 3 , SiO 2 - A1 2 0 3 , B 2 0 3 -Al 2 0 3 , or an aluminosilicate. The C 9  aromatic hydrocarbon is preferably trimethylbenzene which inhibits the formation of trimethylbenzenes as by-product. In addition, up to 20% mol per cent (based on the toluene) of meta-xylene may be included in the starting material to inhibit the formation of m-xylene and increase the proportion of o- and p-xylenes in the product. Hydrogen is preferably present in the feed in amount 0À1-25 mols per mol of toluene, m-xylene and C 9  hydrocarbon. Processes in which m-xylene and trimethylbenzenes produced are recycled to the feed are described.
Patent GB-928401-A (GB)
Title: Improvements relating to automatic inventory control systems
Inventor: SHEARD JOHN RAYMOND
IPC: G08B5/22
Filed: 1958-08-13
Abstract: 928,401. Seat reservation apparatus. ELECTRIC & MUSICAL INDUSTRIES Ltd. Sept. 29, 1959 [Aug. 13, 1958], No. 25957/58. Class 106(3). A seat reservation system for air travel utilizes a magnetic drum store 12 with data tracks 33, 34, each track having 31 blocks of information, one for each day of the month, and each block recording data on eight flights. For each flight 11 bit positions are available, plus a parity check bit, and of these 11 bits either 8 or 5 may be used to represent the number of seats booked (mode 1 or mode 2 respectively), the remaining bits being used to record schedule changes and other miscellaneous information; for each block eight bits are used to indicate the modes of recording the eight flights, and further bits indicate whether BST or GMT is used &c. Thus when less than 32 seats are booked on a flight three extra bits are made available for other data on that flight. An input received at 1 (which may be a request for reservations, a cancellation, or enquiry as to the state of booking) is entered into a register 3, from which it is transferred to registers 4-8. Register 6 selects the appropriate read head 11 and register 5 selects the appropriate block of data corresponding to the day of the month. The eight " modebits " of this block are fed into a register 14, and the 11 bits corresponding to the desired flight are read into register 16 under control of the contents of register 7, which also selects the corresponding " mode-bit " from 14 by gate unit 18. This mode-bit gates the contents of 16 into either register 21 or 22 according as the flight data is recorded in mode 1 or mode 2, and a 14-bit register 23 then receives this information with the number of seats booked in the left-hand eight positions, extra information bits in the next three, and schedule change &c. bits in the right-hand three. These information bits are then transferred to registers 24, 26 and 25, respectively, the number of seats booked then being passed to arithmetic unit 27 where it is modified where necessary under control of unit 9 by the contents of register 8, which has stored the number of seats concerned in the input enquiry (control unit 9 receives information from register 4 indicating whether a seal, cancellation or enquiry is involved). If the number of seats booked when so up-dated exceeds 31 gate 36 is not enabled, so that register 28 receives data in mode 1 for over-recording in the same position on the drum; if it is 31 or less the rerecording is in mode 2, the extra information being gated in from unit 35 if required. The result of the enquiry is transferred to output register 30. A parity check circuit 15 checks the data for each flight.
Patent GB-745265-A (GB)
Title: Improvements relating to conveyor systems
Inventor: FOX DOUGLAS PERCY SHOOLBRED
IPC: B66B11/00
Filed: 1953-09-21
Abstract: 745,265. Roller conveyers; platform apparatus. VICKERS - ARMSTRONGS (ENGINEERS), Ltd. Sept. 15, 1954 [Sept. 21, 1953], No. 25962/53. Classes 78 (1) and 78 (3). A vertically-movable platform used for transporting stacks of crates from floor to floor in a building is moved stepby-step near the upper floor in order that the crates in each layer of the stack on the platform can be manually moved horizontally on to a conveyer or from a conveyer to form a stack on the platform. At the lower floor the crates, which are stacked on pallets, are brought by fork-truck to the platform. As the truck approaches the platform it is constrained by guide rails 12 to pass over a contact device 13, depression of which causes the door 5 to open. The truck is moved on to deposit the pallet on the platform. On withdrawal of the truck the contact device 13 is released, the lift door closes and a red signal light 16 goes out. The attendant then starts the hoisting mechanism and the lift rises until the top layer of crates is slightly above the conveyer 7. This layer is removed by an attendant who, when the removal is complete, actuates a pedal switch 14 to energize a relay causing the lift to rise one step, i.e. through the height of a crate. These operations are repeated until the lift is empty. When an attendant at the other side of the structure 6 actuates a pedal switch, the lift is lowered one step. It is then loaded with a layer of crates and the operation completed until the stack is complete. The lift is then lowered to floor 1 on reaching which it causes a green signal light 16 to come on to indicate that the lift requires unloading. The arrival of the truck causes the opening of the door and its withdrawal effects the closing of the door and the changing of the light from green to red. The roller conveyers 7, 8, Fig. 4, are made with hinged sections 25 which can be lifted to facilitate access to the crates.
Patent GB-1330629-A (GB)
Title: Circuit for converting a trapezoidal electrical pulse into a  square-wave pulse
IPC: H03K5/08
Filed: 1972-06-02
Abstract: 1330629 Pulse squaring circuits EUROPEAN ATOMIC ENERGY COMMUNITY 2 June 1972 [4 June 1971] 25965/72 Heading H3T In a pulse squaring circuit a reference level is provided mid-way between the pulse extremes and the leading edge triggers a monostable circuit the trailing edge of the output-pulse from which charges over a bi-stable circuit which reverses the polarity of the signal so that the trailing flank of the input pulse retriggers the monostable circuit and resets the bi-stable circuit. The threshold of the monostable circuit is thus approached in the same direction at each flank and timing errors due to switching hysteresis are thus reduced. As shown, the leading edge is inverted in amplifier 2 and passed through an adding circuit 8 to trigger a Schmitt type monostable circuit 12 having a triggering threshold equal to half the signal level. The trailing edge of the pulse from the monostable circuit charges over a bi-stable circuit 12 to render conducting a transmitter 6 which disables amplifier 2 and to cut-off a transistor 7 to enable a non-inverting amplifier 4. The trailing edge of the input pulse accordingly retriggers the monostable circuit and the trailing edge of the resulting pulse resets the bi-stable circuit to restore the original condition of the amplifiers. The output pulses are derived at F from the bi-stable circuit. The D.C. level of the signal applied to the monostable circuit is set by integrators 3, 6 in feedback paths of the amplifiers. When the corresponding transistor is conducting the charge in the integrator is set and this charge is held when it is not conducting.
Patent GB-190820-A (GB)
Title: Improvements in the manufacture of lace
IPC: D04C1/00
Filed: 1921-10-01
Abstract: 190,820. Birkin, C. W., Birkin, H. L., and Coxon, A. Oct. 1, 1921. Braid.-A machine made net which resembles real, that is, hand made filet lace, is made with pillars consisting of two threads and with bars consisting of two threads or three threads. Fig. 2 shows a net in which the bars consist of two threads f, the pillar threads e, e' forming no part of the bars. Fig. 3 shows a net in which each bar consists of three threads h, h<1> and g or g'. The pillars are formed from the threads g, g<1>.
Patent GB-242961-A (GB)
Title: Improvements in and relating to die-casting machines
IPC: B22D17/26
Filed: 1925-10-19
Abstract: 242,961. Fertigguss-und Metallwerk Akt.-Ges. Nov. 12, 1924, [Convention date]. Casting-machines; clamping moulds. - The plunger p, of a die-casting machine, by which the molten metal is forced into the die or mould h, k, is formed in one with the nozzle n and is arranged in an inclined position between the mould and melting pot c, these' being moved relatively to make a cast. The pot c has a cylinder n in which the plunger p is arranged its stem being engaged by pins q<1>, Fig. 5 and spring pressed levers x pivoted on the slide d which carries the mould. After closing the mould h, k by a hand lever m the slide d is moved towards the pot by a hand lever or by a frame 11 and cam 6 driven, as shown, through a one revolution clutch 23 closed by the lever m. During the first part of this movement the levers x push down the plunger p causing the molten metal to rise into the nozzle, then the levers x are released from the plunger by engaging fixed inclines 2, Fig. 4, and the plunger remains stationary until its nozzle is in contact with the mould. The mould then moves the plunger down again thus forcing a charge of molten metal into the mould. During the return movement, which may be effected by a cam 8 or spring 9 or both, the levers x pull the plunger into its original position.
Patent GB-1497024-A (GB)
Title: Vehicle equalizer bar mounting means
IPC: B62D55/30
Filed: 1976-06-23
Abstract: 1497024 Endless track vehicles CATERPILLAR TRACTOR CO 23 June 1976 [14 Nov 1975] 26122/76 Heading B7H In a track-laying vehicle push rod 76 of a recoil mechanism extends through bearing means 32 pivotally connecting an equilizer bar 14 to the track frame 16. In an embodiment, Fig. 1, the bar 14 is pivoted to the main frame 10 about pivot 20 and is pivotally connected at eacn end in a similar manner to track frames 16, 18. As shown at one end the bar 14 is made up of an end cap 24 which is releasably secured by bolts 26, 28 to a main body 22. The end cap 24 and main body 22 surround the outer race 30 of a spherical bearing 32, Fig. 2, the inner race 34 of which is mounted on a tubular portion 36 of track roller frame 16. The rod 76 of recoil means 70 extends through the tubular portion 36 and provides a spring bias for an idler 72. The contacting surfaces of the end cap 24 and main body 28 may be disposed on a line 48 which is at an oblique angle to bar 14 as seen in Fig. 2 or at right angles thereto, Fig. 5 (not shown).
Patent GB-1136976-A (GB)
Title: Sinusoidal signal frequency changer
IPC: H03B19/16
Filed: 1966-06-13
Abstract: 1,136,976. Frequency multipliers and dividers. UNITED STATES ATOMIC ENERGY COMMISSION. 13 June, 1966 [8 July, 1965], No. 26159/66. Heading H3T. [Also in Divisions H1 and H2] A frequency changer uses a diode which has a square law relationship between the voltage across it and the current through it; the diode may be a block of cadmium sulphide with a non-ohmic contact (silicon oxide-gold-indium) on one side and an ohmic contact on the other In the frequency double shown in Fig. 1, the input 29 is supplied to a full-wave rectifier 28 which supplies the diode 12 via a Darlington amplifier 13 fed from a constant current generator 20. The voltage applied to the non-ohmic contact 17 is an unsmoothed rectified sine wave, and the current through the diode is the square of this which is a pure sine wave of twice the frequency of source 29; the output is derived from terminal 34. In another arrangement, Fig. 3 (not shown), a full-wave rectifier supplies the diode in series with a resistance, the double frequency being obtained across the resistance. In a modification, Fig. 5 (not shown), two of the diodes of full-wave rectifying diode bridge are the special square-law diodes. In the frequency halving circuit shown in Fig. 8, the sine wave input at terminal 137 produces sinusoidal variation of current through the diode 141, thereby producing across the diode a voltage waveform corresponding to a rectified sine wave of half the frequency (i.e. the rectified square root of the input); the Schmitt trigger 171 is fed from the input and produces a square wave which causes the diode 164 and 168 to conduct alternately, thereby inverting alternate half-cycles and producing an output waveform of half the frequency in the load 170.
Patent GB-263258-A (GB)
Title: Improvements in or connected with apparatus for receiving wireless signals
IPC: H03J1/08
Filed: 1925-10-20
Abstract: 263,258. Barringer, A., and Ormsby & Co., Ltd. Oct. 20, 1925. Inductances; wireless tuning-apparatus, adjustment devices for.-In radio tuning apparatus with one or more tuning coils and reaction thereon, and in which the reaction coil-holder 12 is rotatably mounted on a pin 11 projecting from a slider 10 operated by a screwed rod 8, the holder 12 comprises a short length of insulating material with one or more circumferential slots 12a receiving the reaction winding 12b and carries a stop 13 urged by a spring 11<a> against the slider 10 to maintain the coil 12<b> normally parallel to and coaxial with the turning coils 2, 2<a> as the coil 12<b> is moved to and fro by the screw 8, a post 15 or the equivalent extending into the path of the lower part of the holder 12 so that, when the holder 12 has moved away from the coils 2, 2<a> a certain distance, it is tilted about the pin 11 against the action of the spring 11 to position the coil 12b at right-angles to the coils 2, 2a and so annul reaction. The rod 8 and a plain guide-rod 7 are carried by brackets 5, the post 15, the brackets 5, and a socket 16 for the coils 2, 2<a> being secured separately to the panel or mounted on a base. Coils 2, 2a forming a highfrequency transformer are wound in circumferential slots in an insulating cylinder 1 having plug contacts 4 mounted on a flat surface 3 at one side to connect the windings to the socket 16. The transformer may be of the barrel type or may be replaced by a tuning coil for use in aerial tuning or with a tuned anode circuit.
Patent GB-319480-A (GB)
Title: Improvements in and relating to dirigible headlight mechanisms for automobiles
IPC: B60Q1/124
Filed: 1928-09-12
Abstract: 319,480. White, A. E., (Pilot Ray Corporation). Sept. 12, 1928. Vehicle lamps, directing.-Means for directing automobile head-lights comprises a. pivoted device having a yieldable part connected at separated points with the head-lights and with the actuating device so as to prevent minor movements or vibrations of the latter from being transmitted to the head-lights. In the form shown, a flatspring 22 is rigidly secured at the upper end by bolts 24 having hook-shaped ends 25 to a flanged plate 17 pivoted at 19 to a fixed bracket 20. The plate 17 is connected by a pivoted rod 38 with a crank-arm 16 on the head-light 15, a plurality of openings 40 being preferably provided in a forwardly-extending rib 39 on the plate to allow for adjusting the point of attachment, of the rod. The lower end of the spring 22 is secured by a. clamping-plate and a bolt 31 to a member 29 pivoted to the forward end of a rod 27, the rear end of which is provided with a socket-member 37 adapted to receive the spherical head of one of the bolts of a two-part clamp 33 on the steering rod 14 or arm 13. One or both of the rods 27, 38 may be adjustable in length as by means of a turnbuckle 42 to enable the apparatus to be applied to automobiles of different types or sizes.
Patent GB-1347114-A (GB)
Title: Electric heat storage stoves
Inventor: GEERINCK RAYMOND
IPC: F24H7/04
Filed: 1971-04-19
Abstract: 1347114 Electric thermal storage stoves ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI 19 April 1971 [3 April 1970] 26271/71 Addition to 1241760 Heading F4U An electric thermal storage stove as described in Specification 1,241,760 is modified in that the fan impeller 12 and its housing are supported by a structure 10, 11 which is releasably affixed either to flanges 7 or 8 of legs 5 supporting the heat storage core 1 whereby the orientation of a fan air outlet duct 22 may be reversed, and in that a deflector plate 18 which determines the proportions of cold and heated air passing to the fan impeller is pivotable about a pin 17. The plate 18 is actuated by a bimetallic element 21 in response to the heated air temperature. A heating resistor grid 23 is provided in the outlet duct 22.
Patent GB-1317830-A (GB)
Title: Method for producing antibiotics namely rifamycins b and o
IPC: A61K31/395
Filed: 1970-06-01
Abstract: 1317830 Antibiotics rifamycins B and O TAKEDA YAKUHIN KOGYO KK 1 June 1970 [30 May 1969] 26301/70 Heading C2A Rifamycin B and rifamycin O are produced by cultivating Streptomyces tolypophorus (I.F.O.-12554-cf. Specification 1,212,741) or its yellow mutant (I.F.O. 13151) in a nutrient medium containing at least one assimilable C source and at least one digestible N source in the presence of 0À005 to 0À5% of an inorganic iron compound under aerobic conditions. The medium is preferably aqueous and the iron may be ferrous or ferric chloride, sulphate, citrate, phosphate, iodide, oxide or hydroxide. Rifamycin O is obtained by extracting the culture broth at pH 7À2 with ethylacetate and adding a 1 : 10 mixture of diethyl ether and petroleum ether to the extract to precipitate a crude which is further purified by chromatography on carbon and then on silica gel. Rifamycin B is obtained from the aqueous layer after ethyl acetate extraction of the broth by adjusting to pH 2À5, extracting with ethyl acetate and precipitating a crude by the addition of petroleum ether. Further purification is by dissolution in ethyl acetate, extraction with aqueous phosphate, adjustment to pH 3À0, re-extraction into ethyl acetate and precipitation by addition of n-hexane, followed by crystallization from 1 : 1 ethyl acetate and acetone.
Patent GB-263693-A (GB)
IPC: B01D33/333
Abstract: 263,693. Brackett & Co., Ltd., F. W., and Brackett, F. W. July 29, 1926. Endless moving sieves. - In screening and filtering apparatus comprising an endless series of perforated plates carried by chains, the plates e, Fig. 2, are curved so as to conform to the path of the band at one end of the apparatus and prevent the formation of spaces between the plates, and each is provided with a. bucket o extending across it. The invention is described as applied to apparatus for removing leaves and other debris from water contained in a well b, Fig. 1. The plates have tongues n which embrace ladder bars f<1>, Fig. 3, carried by chains f with rollers q. The screen is carried by a frame a and is actuated by sprockets g at the upper end. A curved guideway is formed at the lower end of the frame by angle-section strips and a bottom plate r and sealing strips giving a working clearance with the edges of the plates are provided so that the water can pass from the entrance side c of the well to the exit side d only by way of the screen. The elevator buckets o secured to the trailing end of the plates take up large foreign matter that would not adhere to the plates. On the downward run the screen is deflected outwardly and then inwardly by rollers or guides and cleared by jets of water j which carry the debris into discharge shoots k, l. Rails are provided on the curved bottom r to take the chain rollers g and prevent the buckets fouling the bottom r should the chains stretch and drop.