baber/WOPTO huggingface dataset:
Patent GB-618589-A (GB)
Title: Improvements in or relating to double-current audio-frequency telegraphic transmission systems
IPC: H04L27/227
Filed: 1945-07-03
Abstract: 618,589. Telegraph receiving-systems. COMPAGNIE GENERALE D'ELECTRICITE. July 3, 1945, No. 16956. Convention date, March 12, 1943. [Class 40 (iii)] The invention is applied to the type of phasereversal telegraph system described in Specification 449,999. In this system the first signal-element of a message which is of a predetermined and invariable phase is filtered, amplified and applied to a ring demodulator DM, Fig. 1, and is also filtered and applied to a ring-type modulator Xm which is slightly asymmetric and produces an output in phase with the initial signal element. This output controls the demodulator DM and, being in phase with the input thereto, produces a telegraphic signal in the receiver LOC of predetermined and invariable polarity. Subsequent phase reversals of the incoming signals produce reversals at both the input 4 and control terminal 7 of the modulator Xm and the phase of its output, once established, is unchanged. The two phases received will, however, produce unequal outputs from the unbalanced modulator Xm and hence signal distortion occurs. In order to avoid such distortion, a blocking circuit BL and a rectifier Rd are added as shown in Fig. 2. The initial signal-element is now amplified at V1 and applied to the input 2 of the demodulator DM and is also applied to its control terminal 6 via the normally open blocking circuit BL. These inputs being in phase, the outputs to the receiver LOC and modulator Xm are of predetermined polarity and the latter establishes an output in phase with its input, i.e. in phase with the initial signal-element. This output is delayed at F2, amplified at V2, again delayed by the rectifier circuit Rd and applied to the blocking circuit BL which then ceases to pass the received signals. The delay of Rd is sufficient for the output of the modulator Xm to reach the demodulator DM before the blocking circuit is closed. Subsequent signals are then dealt with as in Fig. 1, the blocking circuit remaining ineffective as long as transmission continues.
Patent GB-419389-A (GB)
Title: Improvements in or relating to apparatus for controlling the opening and closing of the doors of vehicles
IPC: E05B65/12
Filed: 1933-06-14
Abstract: 419,389. Door-operating mechanism. MONARCH DOOR CONTROLLER CO., Ltd., and SMITH, G. W. PETTIGREW-, 7, Victoria Street, London. June 14, 1933, No. 16972. [Class 65 (i).] A spring controlling-device for pivoted falldown doors of vehicles comprises a link pivoted at one end to the outside of the door and at the other end to one end of a lever which is pivoted at its other end to a bracket on the vehicle frame or floor, the lever being pivoted intermediately to a member slidable on a rod, pivoted at one end to the bracket, so as to compress a spring carried by the rod. In the form shown, the spring 25 is carried on a rod 15, pivoted on a horizontal axis 17, and is compressed between an abutment 19, held adjustably on the end of the rod, and a U-shaped member 21. The member 21 is pivoted at its ends 24 to two parallel bars forming a lever 8, which bars at one end are pivoted to the two bracket members 2 carrying the pivot 17 and at the other end are connected by a pin 11 with a link 12 pivoted to the door 14. As the door drops about its hinge, the lever draws the member 21 along the rod 15, which pivots about its axis 17, and the spring is thus compressed. In a modification, using a longer spring and rod 15, the abutment member 19 carries a sleeve which extends inside the spring for a large part of its length.
Patent GB-356726-A (GB)
Title: Improvements relating to radio receiving apparatus
IPC: H03J5/28
Filed: 1930-06-02
Abstract: 356,726. Inductances. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and KINMAN, T. H., Ladbroke, Bilton, Rugby. June 2, 1930, No. 17019. [Class 37.] In a wireless receiver having a plurality of independent energy input devices, each comprising a circuit resonant to a different frequency, a single voltage control device is provided and adapted to associate each of the devices successively with the input of a valve detector or amplifier. The Figure shows tuned circuits 1, 2, 3 and a potentiometer 7 adapted to be successively associated with the input of a valve 10. Volume is adjusted by movement of the aerial coupling coil 4 and reaction coil 5 and by potentiometer 7. In a modification, Fig. 2 (not shown), a number of fixed aerial and reaction coils are provided and volume is controlled by a potentiometer in the input to the valve. Specification 215,121, [Class 40 (v), Wireless signalling &c.], is referred to.
Patent GB-667206-A (GB)
Title: Improvements in photographic processes and materials therefor
IPC: G03C1/485
Filed: 1949-06-28
Abstract: 2 - Methyl - 6 - nitrobenzthiazole metho - p - toluenesulphonate is prepared by heating together 2 - methyl - 6 - nitrobenzthiazole and methyl-p-toluenesulphonate.  6 - Nitrobenz - 1 : 2 : 3 - triazole is prepared by adding aqueous sodium nitrite slowly to a cooled dilute hydrochloric acid solution of cooled dilute hydrochloric acid solution of 4-nitro-1 : 2-diaminobenzene. 4-Chloro-6-nitrobenztriazole is prepared by adding nitrosylsulphuric acid solution to a cold solution of 4-chloro-6-nitro-1 : 2-diaminobenzene in sulphuric acid.  6-Nitro-5-chlorobenztriazole is prepared by adding nitric acid to a sulphuric acid solution of 5-chlorobenztriazole.ALSO:2 - (o - Nitrostyryl) - benzthiazole ethiodide is prepared by refluxing together 2-methylbenzthiazole etho-p-toluenesulphonate and o-nitrobenzaldehyde in acetic anhydride, and adding aqueous KI to an alcoholic solution of the product.  2 - (o : p - Dinitrostyryl) - benzthiazole ethiodide, 2-(p-nitrostyryl)-quinoline metho-p - toluenesulphonate, 6 - ethoxy - 2 - (p - nitrostyryl) - quinoline metho - p - toluenesulphonate, 2 - (m - nitrostyryl) - quinoline metho - p - toluenesulphonate, 4 - (p - nitrostyryl) - quinoline methiodide, 3 : 3 - dimethyl - 2 - (p - nitrostyryl)-indolenine methiodide, and 2-(p-dimethylaminostyryl) - 6 - nitrobenzthiazole ethochloride are similarly prepared.  2 - (o : p - Dinitrostyryl) - benzhiazole is prepared by adding concentrated HCl to a mixture of 2-methylbenzthiazole and 2 : 4-dinitrobenzaldehyde, and heating.  5 - o - Nitrobenzylidene - 3 - ethylrhodanine is prepared by refluxing together 3-ethylrhodanine, o-nitrobenzaldehyde, absolute ethyl alcohol, and piperidine.
Patent GB-1205196-A (GB)
Title: Improvements in and relating to a system for controlling a tensioning carriage for a traction cable for an ingot truck
IPC: B61B12/00
Filed: 1969-04-01
Abstract: 1,205,196. Tensioning cable of rope railways. SOC. DES FORGES ET ATELIERS DU CREUSOT. 1 April, 1969 [6 May, 1968], No. 17060/69. Heading B7L. A control system for a tensioning carriage 5, Fig. 1, for a traction cable 2 for an ingot truck 1 comprises an hydraulic ram whose cylinder 6 and piston 7 are respectively connectable to a fixed part of the installation and to the tensioning carriage 5, one of the two ram chambers 11 communicating with a pressure circuit, and the other chamber 20 communicating with a liquid tank 16 each connection being via a conduit 12, 21, containing a valve 24, 25 which opens completely to supply liquid to the corresponding chamber and closes partially to allow liquid to escape from said chamber, means being provided to limit the rate of escape of the liquid. The cable 2 passes over a drive pulley 3 and a pulley 4 mounted on the tensioning carriage 5. The piston 7 is attached to the carriage 5 by means of a pistonrod 8 and a link 9 having a number of apertures 10 for adjustment of the tension in the cable. The high pressure chamber 11 communicates with the high pressure circuit which comprises an hydraulic accumulator 13, a pump 14 which supplies pressure liquid from a pressurized tank 16 to the circuit via a non-return valve 15. The pump is driven by a motor 18 which is controlled by a level detector 17 which starts the motor 18 when the liquid in the accumulator 13 falls below a certain level. A pressure sensitive device 19 stops the installation if an abnormal pressure drop occurs. The closure of valves 24, 25 is adjustable by means of points 26, 27. A cock 28 is fitted in the conduit 21, and a conduit 29 having a cock 30 connects the two chambers 11, 20. In use the cock 28 is open and the cock 30 closed.
Patent GB-1100148-A (GB)
Title: Specifying bifocal lenses for spectacles
Inventor: SMITH PHILIP ANTONY
IPC: G02C7/06
Filed: 1966-04-19
Abstract: 1,100,148. Spectacle lenses. R. RODENSTOCK [trading as OPTISCHE WERKE G. RODENSTOCK] April 19, 1966, No. 17143/66. Heading G2J. In order to determine the required positions of the reading portions of bi-focal lenses, test lenses 1 are mounted in a spectacle frame to be worn by a patient and transparent slides 6, which represent the reading portions, are slidably fixed to the lenses 1 with a non-solidifying adhesive. Each slide 6 carries a central vertical line 7 which indicates the position of the slide with respect to vertical and horizontal lines 4, 5 on the associated lens 1. The slides may be coloured and have refractive power.
Patent GB-595535-A (GB)
Title: Apparatus for weighing and determining the specific gravity of granular and other loose material
IPC: G01N9/04
Filed: 1945-07-06
Abstract: 595,535. Specific-gravity estimating- apparatus. THEONVILLE, W. M. July 6, 1945, No. 17261. Convention date, July 6, 1944. [Class 97 (iii)] Apparatus for weighing and determining the specific gravity of granular, flaky, powdery or like materials comprises a main weighing container 1 into which a charge of material is supplied and weighed and an auxiliary container 5 of known volume which is filled by a portion of the charge and retains said portion when the remainder of the charge is emptied from the main container, after which the retained portion is weighed by the apparatus to give an indication of specific gravity. As shown, the auxiliary container 5 is secured centrally in the container 1 by stays 10 and has top and bottom closure slides 6, 7 which are secured to a rotatable shaft 8 operated by a handle 9. The stays 10 are of gable form in section and the upper closure slide 6 conical so as not to retain material when the main container is emptied. The charging of the container 1 with a predetermined charge from the source A, the operation of counting mechanism, the stopping of the supply of material from the source A, the closure of the slides 6, 7, the opening of the closure flap 4 of the main container 1 and the recording of the specific gravity of the portion retained in the container 5 may be effected automatically by electrical means.
Patent GB-879912-A (GB)
Title: Improvements in or relating to pulse generators
IPC: H03K3/10
Filed: 1959-05-21
Abstract: 879,912. Valve pulse generating circuits. WAYNE KERR LABORATORIES Ltd., and CHAPMAN, G. C. May 20, 1960 [May 21, 1959], No. 17376/59. Class 40(6) In a pulse generator of the type utilizing feedback from anode to cathode of a secondary emission pentode 10, the recovery time at the end of each pulse is reduced by a valve 30 connected across the dynode circuit and rendered conductive by the positive-going voltage step at the anode of valve 10. In the arrangement described, valve 10 is rendered highly conductive by regenerative feedback from anode to cathode at the onset of each trigger pulse fed to the grid. Valve 10 remains conductive until the negativegoing step fed down delay line 22 is reflected as a positive-going step, which cuts off valve 10 at the cathode and rapidly discharges the stray capacitance of the output circuit 28 via valve 30. Reference has been directed by the Comptroller to Specification 723,331.
Patent GB-1464155-A (GB)
Title: Valves for flowable materials
IPC: F16K5/04
Filed: 1975-02-14
Abstract: 1464155 Valves POWER HOUSE ENG Ltd 14 Feb 1975 [20 April 1974] 17415/74 Heading F2V In a rotary valve for controlling granular material or thick liquids, the obturating surface of the closure member has a trough-like recess formed between two end plates 16, 17, and cross-members 20, 23, 24. The end plates are braced by a counter-balancing member 21. The contacting faces of the end plates and the crossmembers 23, 24 are provided with strips of corrosion resistant material such as stainless steel. The shafts 30 are eccentric with respect to the centre of curvature of the contacting faces of the closure member and the leading edges of the stainless steel strips meet the edge of the inlet orifice 13 with a guillotine action. The shafts are mounted in bearings attached to the end walls of the housing and spring-loaded seals 63, 63a, 63b are provided, made of neoprene and Nylatron (Registered Trade Mark).
Patent GB-746343-A (GB)
Title: An improved device for peeling vegetables and fruits
IPC: A47J17/16
Filed: 1954-06-14
Abstract: 746,343. Potato &c. peelers. GONY, A. L. J. V. June 14, 1954 [Jan. 6, 1954], No. 17421/54. Class 28(2). In a turning lathe type of potato &c. peeler the cutter carrying arm 5 is mounted on a sleeve 4 which can be slid by hand over a casing to adjust the position of the cutter 20 along the length of the potato and the cutter can also be swung by hand angularly to the potato axis about an axis 9 by means of slip-friction blocks 13 and a worm 12 and worm wheel 13 which rotates the lever 8, 9 thereby allowing the operator to adjust at any time the angular setting of the cutter in relation to the potato axis. The arm 5 is pressed towards the potato by a bowed leaf spring 18, one end of which is adjustable in notches 19 to vary the pressure. The machine is operated by a handle which through reducing gears rotates the impaling spike 1 and the spindle 17. The cutter comprises a gauge shaped blade 6 with oblique peeling edge 20 and a shoulder 21 to guide away the peel. The cutter may pivot about a pin 23 in a fork 22 to adapt its position automatically to the outline of the vegetable. In Fig. 3 in which the impaling spike 1 is vertical an ejector 24 raised by depressing a handle 26 pushes the peeled potato off the spike.
Patent GB-1268569-A (GB)
Title: Improvements in dispensers
Inventor: GILIO ARTHUR SALVATORE
IPC: F15B1/16
Filed: 1969-04-03
Abstract: 1268569 Portable containers; container closures A S GILIO N GORTZ and M B MACCARONE 3 April 1969 17430/69 Headings F1R and R15D [Also in Divisions A5 and F2] A container 2 for dispensing fluids under pressure comprises a resilient bladder 42 which contracts from an expanded condition when filled or partially filled with fluid to eject the fluid through a valved dispenser outlet 64 to a contracted flattened condition when empty of fluid, the wall of the bladder being maintained in a tensioned state when in the empty contracted condition to ensure that all fluid within the bladder is ejected. The bladder, which is of tubular shape initially, is housed in a plastics vented casing 4 and is clamped at its upper end between the casing neck and the dispenser outlet. A test-tube shaped, longitudinally-fluted mandrel 30 extends upwardly from the base of the casing and the bladder is stretched  downwardly over the mandrel for half the length  of the mandrel and is then folded backwardly upon itself so that in the initial empty contracted pos-  ition of the bladder, Fig. 2, the bladder is in a stretched or tensioned condition. Fluid previously forced under pressure through the valved outlet  may be dispensed by depressing a button-operated, closed-ended tube, Figs. 7-8 (not shown), which unseats a cup-shaped valve 66 permitting the  extended bladder to force fluid through openings 70 in the valve and side openings 70 in the valve and side openings 88 in the tube 86. By depressing, the tube 86 far enough, the valve springs over-centre and remains open after release of the valveoperating button 78. The container may be used for intravenous feeding, the container being strapped to the upper arm. The arm strapping,  flow regulator 99, needle, and tape 98 may be stored in the hollow mandrel. In a modification, Figs. 11-12 (not shown), the casing has front and rear walls of convex and concave shape respectively to facilitate strapping to a patient's arm, and the bladder is held in a pre-tensioned empty condition by stretching it out flat with opposite walls 108, 110 tight against each other and bonding the  stretched wall 108 to the casing. In a similar modification, Fig. 13 (not shown) a polyethylene bag 12 lies between the bladder and the casing and is connected to a valved inlet 124 whereby a further fluid may be drawn into the bag on dispensing fluid from the bladder. In a final embodiment, Figs. 14-16 (not shown) similar to the first described embodiment and for dispensing viscous  fluids, e.g. ketch-up, the dispenser outlet is provided with spout 204 and a ported, tubular valve element 192, sliding in a fixed valve-member 180, and a resilient disc 206 biasing the valve element  to a closed position.
Patent GB-204378-A (GB)
Title: Improvements in and relating to colour projection apparatus for kinematograph
IPC: G03B33/08
Filed: 1922-06-26
Abstract: 204,378. K. & S. Syndicate, Ltd., and Killick, R. June 26, 1922. Kinematograph apparatus; colour kinematography.-An attachment enabling a standard projector to be used for colour projection comprises gearing driven by the shutter spindle and a screen member driven thereby; the screen member may also constitute a shutter or be used in conjunction with a separate shutter mounted on the spindle. As shown, a member 3 is secured to the bracket 2 carrying the shutter spindle 1, and a cup-shaped member 11 rotatable thereon is secured to a sleeve 15 formed with a plate 15<1> carrying the intermediate pinion 16 of an epicyclic gear. The pinion 16 meshes with a pinion 20<1> carried by a sleeve 20 secured to the spindle 1, and with internal gear teeth 22<1> formed on a casing 22 rotatable on the sleeve 15. A plate 23 having a sleeve carrying the screen member 18 is screwed to the casing 22. The member 11 is normally held stationary by a spring-pressed plunger 8 so as to produce a slower rotation of the screen member 18 when the shutter spindle is rotated, but it is capable of adjustment by means of a handle 14 to synchronize the movements of the member 18 and the feed mechanism. The member 18 may comprise shutter blades and colour screens so that no additional shutter is necessary for colour projection, or it may comprise colour screens only and be used in conjunction with a shutter 17 mounted on the spindle 1 or on an extension of the sleeve 20. When the member 18 comprises shutter blades, flicker blades may be inserted in the blue-green screen.
Patent GB-1417619-A (GB)
Title: Agent for controlling the growth of plants
IPC: A01N43/28
Filed: 1973-04-12
Abstract: 1417619 1 - Methyl - 1,4 - dithianium bromide BADISCHE ANILIN- & SODA-FABRIK AG 12 April 1973 [13 April 1972] 17555/73 Heading C2C [Also in Division Cl] 1 - Methyl - 1,4 - dithianium bromide (sublimes at 240 C.) is obtained by adding methyl bromide in acetonitrile to 1,4-dithiane in acetonitrile.
Patent GB-823160-A (GB)
Title: A valve device, in particular for fluid pressure braking apparatus for road vehicles
IPC: B60T15/04
Filed: 1956-06-07
Abstract: 823,160. Fluid-pressure brakes. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. June 7, 1956 [June 21, 1955], No. 17598/56. Class 103 (1). [Also in Group XXIX] A valve device for controlling fluid-pressure braking comprises apparatus for road vehicles in which the braking acts on the wheels of at least two axles of one vehicle or on the wheels of at least one axle of a tractor vehicle and on the wheels of at least one axle of a trailer vehicle, a piston control unit or member which by direct mechanical action closes the outlet valve 20 and opens the inlet valve 14 of a first valve group 15 to admit pressure fluid from a first source to a space 53. The pressure in this space 53 thereupon acts on a movable partition or piston 2 in opposition to a loading spring 36 housed in a chamber 56 open to the atmosphere. This spring acts in turn on a second movable partition or piston 3 to control by direct mechanical action the closure of the outlet valve 42 and the opening of the inlet valve 40 of a second valve group 41 whereby pressure fluid from a second source is applied to a space 47. The pressure in the second space 47 then acts on the piston 3 in opposition to the spring 36. The piston control unit comprises a closed cap 5 unitary with a piston 17 and slidable in a casing 1 against a spring 27 by means of a pedal-operated lever 9. The cap 5 provides a seat 13 for the inlet valve 14 and has a port 19 connecting a chamber 62 in the cap with a first high pressure supply port 49. One or more stops 21 are provided on the piston 17 so that if the piston 2 fails to move downwardly under fluid pressure to allow the inlet valve 14 to close it is moved positively by the stops. The piston 2 has a hollow hub 29 with ports 24 which connect the spaces 53, 56 when the outlet valve 20 is open. The lower piston 3 similarly has a hollow hub 31 with ports 34 to connect the spaces 47, 56 when the outlet valve 42 is open. A lost-motion connection comprising a head stem 25 slidable in the hub 31 is provided between the pistons 2, 3 so that the spring 36 is pre-compressed. A spring 43 stronger than the spring 27 acts on the piston 3 and normally maintains the piston 2 against a stop shoulder 57. Should the lower inlet valve 40 fail to reclose due to fluid continuously escaping from the space 47, the piston 3 engages an abutment 61. The spring 36 is then further compressed and the upper valve group 15 can still function. A higher pressure is maintained in the space 53 than the space 47 by an amount depending on the relative strengths of the springs 27, 43. The annular chamber 59 above the piston 17 is vented by a passage 60. The fluid pressure reaction below the piston 17 gives the operator a sense of feel. The unions 49, 51 are connected to separate pressure tanks and the unions 52, 54 to the brake cylinders associated with the rear and front axles, or those associated with a trailer and a tractor vehicle.
Patent GB-891852-A (GB)
Title: Improvements in nuclear reactor vapour generating and power plant and an improved method of generating vapour under pressure
Inventor: WOOTTON WILLIAM ROBERT
IPC: G21D3/10
Filed: 1957-06-03
Abstract: 891,852. Gas-turbine plant. BABCOCK & WILCOX Ltd. June 3, 1958 [June 3, 1957], No. 17607/57. Class 110 (3). [Also in Groups XIII and XL (a)] Gas, e.g. (CO 2 , H 2 , He) is circulated through nuclear reactor 102 and heat-exchanger tower 103 by a compressor 163 coupled to a turbine 203 driven by the gas leaving the reactor. The gas is cooled in tower 103 before compression and is re-heated in section 127 of the tower after compression. Turbine, compressor and starting motor 194 are in a common pressure shell 201.
Patent GB-1031007-A (GB)
Title: Motor vehicle suspensions
Inventor: PRICE-STEPHENS DOUGLAS
IPC: B60G11/04
Filed: 1965-04-27
Abstract: 1,031,007. Springs. FORD MOTOR CO. Ltd. April 27, 1965, No. 17615/65. Heading F2S. [Also in Division B7] The front end of a leaf-spring 7 has a bend 17 adjacent the upturned eye 13 such that a tangent to the upper surface of the spring is above or tangential to the eye 13.