baber/WOPTO huggingface dataset:
Patent GB-1255218-A (GB)
Title: Portable input-output terminal
IPC: H04L27/30
Filed: 1969-03-20
Abstract: 1,255,218. Automatic exchange systems. ELECTRONIC DATA SYSTEMS CORP. 20 March, 1969 [22 March, 1968; 16 Sept., 1968], No. 14719/69. Headings H3T and H4K. [Also in Division G5] A portable input-output keyboard unit for a computer having provision to receive a telephone handset and to make an acoustic coupling with it, is adapted to send an identifying sequence-of tones. The unit described includes three oscillators each adapted to oscillate at one of five, five and four sequences respectively selectively controlled by the keyboard, an internal code card on which is coded the telephone number of the substation at which the computer is located, an internal code card on which is coded a number identifying the unit, an external keyboard which can be plugged into the unit or an external card reader. The unit which is powered by an internal battery or an external A.C. supply which also recharges the battery, includes a tape recorder which can be used to record data entered at the unit and transmit it over the line at a subsequent time e.g. to reduce the time of transmission. Each digit is transmitted as a combination of two frequencies transmitted simultaneously from different oscillators, three frequencies being used for certain other characters. One frequency is reserved exclusively for use with the code card which identifies the unit. This prevents the unit being used to simulate another unit which has access to restricted information. It also facilitates having access to a missing unit. The transistor circuitry shown includes three transistors 123, 124 and 128 connected in a closed loop to form a latching circuit. When a contact 80 and its mechanically linked contact 80a or a contact 90 and its mechanically linked contact 90a are closed by operation of a corresponding pushbutton (to initiate sending of the wanted station code or the identifying code) the transistors 123, 124 and 128 are momentarily switched to conduction and are maintained in that condition by a Zener diode 130. A silicon controlled rectifier 167 or 166 is also switched to conduction to supply power over a line 116 or 115 to other circuits of the unit. An oscillator used to step a counter and scan the code cards and comprising transistors 120 and 121 is also switched on. As the transistor 124 switches to conduction a pulse through capacitor 135 causes a transistor 138 to conduct discharging a capacitor 140 which immediately commences to recharge via a resistor 139. When the charge reaches a preset level a Schmitt trigger comprising transistors 141 and 142 responds switching a transistor 133 to conduction, earthing the Zener diode 130 and resetting the latching circuit.
Patent GB-801801-A (GB)
Title: Improvements in or relating to process for treating aromatic-diolefin mixtures
Inventor: LUTZ IRVIN H
IPC: C10G61/06
Filed: 1955-05-21
Abstract: A process for treating a normally liquid hydrocarbon fraction resulting from the pyrolysis of a petroleum fraction the predominant amount of which normally liquid hydrocarbon fraction boils in the gasoline boiling range and which contains at least 5 volume per cent of diolefins and at least 20 volume per cent of aromatics, the aromatics being substantially in excess of said diolefins, comprises contacting a petroleum naphtha charge and said normally liquid hydrocarbon with uncombined hydrogen in the reaction zone of a hydroformer in the presence of a hydroforming catalyst under hydroforming conditions, said normally liquid hydrocarbon fraction being introduced at a temperature below that at which polymerization of the diolefins takes place and in an amount of between 5 and 30 per cent by volume based upon total hydrocarbon charge.  The petroleum naphtha charge may be heated to 900-1050 DEG  F. and passed to a reaction zone containing a hydroforming catalyst and maintained at 900-1000 DEG  F. and at a pressure of 100-500 p.s.i.g. and then 5-30 per cent of the naphtha substituted by an equivalent amount of the aromatic-diolefin charge which normally boils in the range of 100-430 DEG  F.  By this process, benzene, xylene or toluene may be separated in a substantially pure state.
Patent GB-281952-A (GB)
Title: Improvements in and relating to liquid meters
IPC: B01D19/00
Filed: 1927-01-27
Abstract: 281,952. Mabag Maschinen-und Apparatebau Akt.-Ges., and Neuroth, F. Jan. 27, 1927. Liquid meters.-A device for preventing the entrance to liquid meters of flows too small for accurate measurement comprises a chamber connected at 1 to the supply reservoir and at 5 to the meter. Small flows are unable to open a gravity or spring-controlled valve 4 and return to the reservoir through an outlet 7; large flows close a valve 6 against gravity or a spring, and open the valve 4. The device is combined with a gas separator comprising a perforated cylinder 2 covered with a very finelymeshed strainer 3.
Patent GB-1097718-A (GB)
Title: Improvements relating to the production of cyclopentano-ªÏ-oenantholactam
IPC: C08G69/14
Filed: 1965-04-07
Abstract: The invention relates to the preparation of cyclopentano - o  - olnantholactam of formula <FORM:1097718/C2/1> or <FORM:1097718/C2/2> via Beckmann rearrangement of oximes derived from cyclopentanocycloheptanone (2-keto - bicyclo - [5,3,0] - decane). In various aspects:-  Cyclopentanocycloheptanone is prepared by heating cyclododecanol-6-one-1 in the presence of a dehydration catalyst comprising a dehydrating metal oxide other than aluminium oxide, metal hydroxide, metal carbonate, metal acetate, organic acid, CaCl2, amalgamated zinc sheet or soda lime.  Any 1,6-epoxycyclodecene-1 formed may be hydrolysed with acid to cyclododecanol-6-one-1 and recycled.  Cyclopentenocycloheptanone (2 - keto - bicyclo - [5,3,0] - decene - 1(7)), either formed by the above reaction or otherwise, is hydrogenated to cyclopentanocycloheptanone.  Acid conditions give mainly cis-product and alkaline conditions mainly trans-.  Cis-trans cyclopentanocycloheptanone oxime mixtures and in trans-cyclopentano-o -lenantholactam mixtures are separated into isomers by fractional recrystallization.  Various isomeric forms of cyclopentano-o -olnantholactam are claimed per se.
Patent GB-1425400-A (GB)
Title: Apparatus for reproducing sound recordings
IPC: G11B15/675
Filed: 1973-03-28
Abstract: 1425400 Tape cassette players; circuits for control and head switching S L A LADRIERE 28 March 1973 [19 April 1972 24 Nov 1972] 14805/73 Heading G5R An automatic tape player for a multi-track cassette or cartridge has a playback transducer assembly TL with one head P1-P4, Fig. 33, for each track, and a head switching device CM comprising transistors T17-T20, Fig. 38, between each head and the output CMS to an amplifier stage SON, the transistors being switched to change tracks on detection of a silence of predetermined duration, by a bistable device BS having flip-flops T4-T5, T6-T7. The transport may also then be reversed. Stoppage of a tape reel can also initiate these operations. On inserting a cassette, the first track is further selected automatically. Detecting silences.-The output from preamplifier PAA is fed to a circuit DES in which the negative part of the signal blocks an amplifier E2. A silence longer than a predetermined duration gives rise to a track-changing pulse fed to bi-stable device BS. A circuit INB inhibits more than one change during a single silence. The bi-stable device BS feeds a decoding circuit DS, and possibly also a level adjuster (AN), Fig. 17 (not shown) to obtain the required switching voltages.  Transport reversing.-The tape transport includestwo oppositely-driven capstans A1 A2, Fig. 7, and corresponding pinch rollers GE1, GE2 engageable by relays RA, RB. Reel motors Me2, Me3 may also be provided and are actuated by relays RMA, TMB. The relays are controlled by a circuit CR fed from the output of the decoding circuit DS. Detecting reel stoppage.-Mounted on one tape reel spindle A4 is a drum TAM, Fig. 9, having a conducting track PMC with notched edges, brushes PL1-PL3 contacting the lower, central and upper areas so that PL2 is alternately connected to PL1, PL3. A circuit CBB is connected to brushes PL1-PL3 and when the reel stops, and subsequently restarts, provides a track-changing pulse to the bi-stable device BS. Start circuit.-A switch K is closed on cassette insertion to activate a start circuit SLP which imposes the necessary voltages on the outputs from bi-stable device BS to select the first track. The switch K also activates the relay control circuit CR. Further mechanical features.-The two capstans A1, A2, Fig. 7, are belt-driven, from a single motor (Me1), Fig. 6 (not shown). Each reel may be driven from a respective capstan by a retractable roller (GL1, GL2), Fig. 4 not shown), or may have a drive motor Me2, Me3. As shown, a movable chassis CHM is linked by a parallelogram linkage to a fixed chassis CHF and locked by a relay-actuated lever LRD.
Patent GB-435983-A (GB)
Title: Improvements in or relating to steam desuperheaters
IPC: F22G5/20
Filed: 1934-06-18
Abstract: 435,983. Thermally-controlled valves. DUNN, H., Radley Lodge, Ditchling, Hassocks, Sussex.-(Northern Equipment Co. ; 111, West 11th Street, Erie, Pennsylvania, U.S.A.) June 18, 1934, No. 14894 /35. Divided out of 435,150. [Class 135] [See also Group XIII] In a desuperheater, the valve controlling the supply of steam to be desuperheated by direct or indirect contact with water, or the supply of the water, is operated by a fluidpressure or electrical relay controlled, as described in Specification 435,150, by a heat sensitive element, which is placed in the desuperheated steam. Steam flows from a pipe 136 downwards on to water in a tank 135 and then flows upwards through a tube 138 to the outlet pipe 140. The supply of water to the tank is regulated by a valve 142 operated by a motor 143 which is controlled as described in the Specification previously referred to by contacts 144, 145 in a mercury container 154 in communication with a heat sensitive element 107 in the steam outlet pipe. A displacement member 160 in a tank 157 in free communication with the tank 135 is raised and lowered by the closing and opening of the water supply valve due to change of steam temperature upon a rise or fall of the water level in the tank 135, and thus brings the water level back to the normal. The lowering of the water level as the member 160 rises allows the mercury in the containers 156 and 154 to sink thus opening the contacts and stopping the motor 143. The level of the mercury in the container 154 may be controlled through a pipe 151 by the pressure or flow in the steam inlet pipe 136.
Patent GB-913534-A (GB)
Title: Improvements relating to control gear for electric discharge lamps
Inventor: TURNER LESLIE WILLIAM VICTOR
IPC: H01R33/08
Filed: 1960-04-28
Abstract: 913,534. Two-part couplings. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 21, 1961 [April 28, 1960], No. 14992/60. Class 38 (1). A plastic plug-in adaptor for connecting a starting switch 5 to an electric discharge lamp control circuit, accommodates a radio interference suppression capacitor 8 which shunts the starting switch when the latter is received by the adaptor. As shown, a cylindrical plastic body 1 has a socket 3 carrying spring contact blades 6 for connection to contacts 7 on the base 4 of the starting switch. Terminal pins 11 and 12 which are insertable into a socket in the control circuit, are connected respectively to the spring contacts 6 and have the capacitor 8 connected across them. In a further embodiment (Fig. 5, not shown), the socket 3 is located on a lateral surface intermediate the ends of the adaptor so that when the starting switch is inserted therein it does not project beyond the end of the adaptor.
Patent GB-746493-A (GB)
Title: Improvements in and relating to electrically operated hoists, winders, and the like
Inventor: ABRAM LEO
IPC: H02P1/36
Filed: 1953-05-29
Abstract: 746,493. Control of motors; controllers, ME TROPOLITAN - VICKERS ELECTRICAL CO., Ltd. May 19, 1954 [May 29, 1953], No. 15028/53. Class 38(3) [Also in Group XXIX] A slip ring induction motor is controlled by a liquid resistance adjusted by means of a fluid-pressure servomotor having a ported sleeve 3 coupled with a driver's lever through rod 5 and co-operating with a piston 2 which is linked with the moving electrodes of the resistance by means of a rocking lever 9 pivoted at 10. The induction motor may be adapted for dynamic braking, arid during such operation, an unrestricted passage of oil is allowed from the delivery pipe 14 to the input conduit 13 when the driver's lever is initially actuated to reduce the rotor resistance, so that. the servomotor then moves at a high rate. However, when the rotor or stator current of the motor reaches a predetermined value, a solenoid 23 is energized to move sleeve 18 to the left so closing ports 28, 29, and stopping the direct flow of oil between conduits 14 and 13. Pressure oil now flows to the cylinder 1 through conduit 30, transfer valve 16, and conduit 42, a port 37 being opened so that the rate of flow of the oil is determined by a restricted orifice 44 which is so proportioned that the rate of movement of the piston 2 is reduced to a value providing a required retardation of the induction motor. When the piston 2 reaches a predetermined position, corresponding with a certain percentage of the total travel of the electrodes of the liquid resistance, a piston valve 19 is operated by the link 24 to cover the port 29 and again restrict the rate of movement of the electrodes to the lower value, this operation being effected irrespectively of the position of the sleeve 18. During motoring operation, a transfer valve solenoid 39 is energized so that the orifice 43 is introduced instead of the orifice 44 when the movement of the piston 2 is-to be restricted, the speed of the electrodes being limited to a different predetermined value appropriate to motoring conditions. The winding 23 is energized in accordance with the output of a double-cored magnetic amplifier'120, the solenoid 39 being connected to a source of supply through interlock contacts which are closed when the driver's lever is moved to a position for motoring operation. The magnetic amplifier has output windings 123, 124, and a positive feed-back winding 126 as well as a biasing winding 128 and a control winding 136. When the motoring current reaches a predetermined value, the effect of the winding 136 overcomes that of the winding 128 so that the output of the amplifier becomes sufficient to energize the solenoid 23. During braking the solenoid 39 is de-energized, and an additional resistor 133 is inserted in series with the winding 128 so that the solenoid 23 responds at a lower current. In a modification, the transfer valve 16 is biased to the braking position. Specification 729,474 is referred to.
Patent GB-443202-A (GB)
Title: Sound damping and insulating material
IPC: E04B1/82
Filed: 1934-05-22
Abstract: Alloys of the "hydroulalium" type comprise aluminium with 6 or more per cent of magnesium.
Patent GB-235587-A (GB)
Title: Improved apparatus for delivering liquids in measured volumes
IPC: G01F11/06
Filed: 1925-06-12
Abstract: 235,587. Tecalemit, Ltd., (Assignees of Davis, E. W.). June 16, 1924, [ Convention date]. Fixed-chamber apparatus, valve systems for and varying quantity measured in.-The liquid entering through the pipe 10 between collars 15, 16 on a piston avlve 13 passes through the port 9 into a cylinder 6 and moves a piston 30 to discharge a previously admitted charge on the other side of the piston, though a port similar to the port 9 and a port in the bore 8 at the righthand of the apparatus, to a flexible pipe 12 conveying the liquid to the desired place. On sliding the valve by operating the lever 21 against the influence of a spring 25, liquid is admitted to the cylinder space just discharged and the piston 30 is moved back to the first position the liquid being again discharged through ports 9, 11 at the left-hand of the apparatus. The ends of the cylinder are formed by screwed plugs 26, 27 of which the former is fitted with an adjustable screw abutment 28 for the piston, the latter being fitted with a fixed abutment 28'. The lever 21 is pivotally connected by a link 23 to a fulcrum on a handle 22. Specification 200,239 is referred to.
Patent GB-1078325-A (GB)
Title: Improvements in and relating to wall constructions
IPC: E04F13/08
Filed: 1965-04-12
Abstract: 1,078,325. Panelled wail. H. H. ROBERTSON CO. April 12, 1965 [May 1, 1964], No. 15396/65. Heading E1W. A wall panel structure comprises spaced uprights 20 having grooves for receiving the vertical sides of normally flat facing sheets 24 which are thereby held in bowed condition, a plurality of clip members 26 being secured e.g. by screws at intervals along the uprights and presenting opposed flanges 66A, 66B, which are immediately engaged by a side of a sheet 24 during outward movement thereof, e.g. due to wind loads, resilient means 70, contiguous with the clips 26 being provided for supporting trim caps 28 covering the vertical supports. Strips 80 sealant material are interposed between the sides of the trim caps 28 and the vertical sides of the sheets 24.
Patent GB-218994-A (GB)
Title: Improvements relating to fluid pressure braking apparatus
IPC: B60T15/54
Filed: 1924-06-26
Abstract: 218,994. Duchatel, E. E. H. July 9, 1923, [Convention date]. Fluid - pressure. - A graduated release valve operating in conjunction with the triple valve or other distributing valve of fluid-pressure brakes is so arranged that gradual variations in the train pipe, pressure produce a graduated release of the brakes, whilst sudden pressure variations result in full release. The valve comprises a pair of pistons P<1>, P<2> connected respectively to a valve t subject to the pressure of a spring r<1> and to a slide valve i subject to the pressure of a spring r<3> and having a projection q engaging with the curved portion of a spring r<2>, stops u being provided to limit the upward movement of the piston P<2>. The chambers b, a, e communicate respectively with the exhaust part of the triple valve, the train pipe, and the auxiliary reservoir, whilst a pipe g connects the chamber b with a cavity in the slide valve l, and a passage f leads to exhaust. When train pipe pressure is reduced to apply the brakes, the pressures in the chamber b, e keep the ports in the position shown and the movement of the triple valve isolates the chamber b from the brake cylinder, but when fluid is again supplied to the train pipe to release the brakes, the chamber b communicates with the brake cylinder through the pipe c and the exhaust port of the triple valve. If the supply is gradual, the train pipe and auxiliary reservoir pressures remain substantially equal and the piston P<2> will remain in position, and the pipe g will be cut off from the exhaust f by the slide valve l. The valve t will, however, open to vent the brake cylinder as soon as the resistance of the spring r<1> is overcome by the combined upward pressures in the chambers a, b, and will remain open until these forces equalize, thus effecting a partial release of the brakes. If, however, the train pipe is rapidly charged, so that train pipe pressure increases more rapidly than auxiliary reservoir pressure, the piston P<2> will be moved downwards and the slide valve l will connect the pipe g to the exhaust f to effect complete release of the brakes. The piston will remain in its lower position until train pipe pressure is again reduced, when excess pressure in the chamber e, assisted by the spring r<3>, will move it back to normal position. A cock may be provided in the pipe c to cut out the graduated release valve, and the latter may comprise an upper and a lower valve each containing a chamber a, the cavity in the slide valve l then being connected directly to the pipe c. The lower valve may also be used alone in conjunction with the brake cylinder, or it may be interposed between the triple valve and the brake cylinder. In the latter case, the slide valve l would control ports leading respectively to the triple valve, the brake cylinder, and the atmosphere.
Patent GB-516618-A (GB)
Title: Improvements in or relating to safety devices for lift cages
IPC: B66B5/26
Filed: 1938-05-25
Abstract: 516,618. Locking and unlocking lift cages. POWNER, E. D., and POWNER, W. D. May 25, 1938, No. 15571. [Class 78 (iii)] The fastening for the cage gate of a lift is adapted to lock the starting gear when the gate is opened and release it when the gate is closed by providing a spring-loaded detent to engage a notched slide bar or rack connected to tne starting gear, disengagement being effected, in the closing position of the gate, by a cam actuated by a beak on the gate picket when the gate is closed. Fig. 3 shows the fastening with the catch lever 4 engaged by a beak 5 on the end picket 3 of the gate and with a spring-loaded detent 8 adapted to engage a notch in a slide bar 9 connected with the starting gear. In the closed position of the gate a second beak 11 on the picket 3 rocks a cam 12 which through an arm 13 withdraws the detent from the bar. If the lift gate should be opened with the lift in motion the detent 8 is released and engages the slide bar 9 which is thereby lifted to arrest the lift.
Patent GB-803980-A (GB)
Title: Improvements in and relating to dog beds
Inventor: GODDARD CECIL JOHN
IPC: A01K1/035
Filed: 1956-05-18
Abstract: 803,980. Dog beds. GODDARD & CO., Ltd., F. May 17, 1957 [May 18, 1956], No. 15608/56. Class 5(2). A dog bed comprises a rectangular main frame 3-6 of strip metal supporting a canvas bed 17, four combined legs and stays 10, the lower ends of which are turned out to form feet, and an upper frame 7-9 rivet-pivoted to the legs 10, the latter being apertured to receive bolts 15 which pass through the main frame and are secured by fly-nuts 16. The canvas bed 17 is attached to the main frame by an arrangement of grommets and wires rivetted to the main frame. If desired, the wires may be replaced by tension springs, e.g., as at 18. A fabric screen, Fig. 2 (not shown), of known type is secured in position on the frames by tapes.
Patent GB-275177-A (GB)
Title: Improvements in furnaces
IPC: F23C99/00
Filed: 1927-06-11
Abstract: 275,177. Steam Production Corporation, (Assignees of Curran, F. J.). July 31, 1926, [Convention date.]. Liquid and gaseous fuel furnaces for the production of steam for heating buildings, driving automobiles &c. comprise a grate 2 spaced above the furnace bottom 3 to form a chamber 4 supplied with fuel under pressure by a nozzle 6, the fuel stream inducing a supply of air through a pipe 9 an auxiliary supply of combustible mixture being admitted in a whirling stream above the grate. The grate 2 is formed of refractory bars 11 spaced apart to provide slots 12 for the passage of the combustible mixture which is ignited by highly-heated bars 13 inset into the bars 11. Around the lower portion of the furnace a wall 14 encloses a helical heating chamber 17 into which the auxiliary combustible mixture enters through a tangential nozzle 18 similar to the nozzle 6 and supplied from the same source. The auxiliary combustible mixture after being heated in the chamber 17 passes into the combustion chamber through a horizontal iron framework 19 secured to the inner wall 16 of the furnace above the grate 2 and comprising inwardly extending teeth 20 having longitudinal slots 21 through which the mixture passes. Refractory blocks 22 are positioned opposite the slots 21 at an angle of 45‹ to the cylindrical 'wall 16 so that the mixture impacts on the blocks and is given a whirling movement and thoroughly combines with the primary mixture ascending through the grate 2. The framework 19 eliminates hissing or whistling of the gases and ensures ignition by the blocks 22 which are heated to a white heat. The regulating valve for the nozzle 18 supplying the auxiliary fuel is automatically controlled by a pressure regulator positioned in the steam space of the boiler or in the steam outlet pipe.