baber/WOPTO huggingface dataset:
Patent GB-124272-A (GB)
Title: Improvements in Traction Engines.
Inventor: BRETTELL FREDERICK GILBERT
IPC: B62D49/06
Filed: 1918-03-20
Abstract: 124,272. Brettell, F. G., (Cultitractor Co.). March 20, 1918. Frame components, sections and forms of, and applying and combining; axles.-The main frame of a farm tractor for ploughing, cultivating, &c., comprises castings A, B, C, the two former of which each consists of a forwardly-extended limb 10, Fig. 2, a central depending member 11 composed of an inner plate 12 and an outer plate 13, Fig. 3, and an inwardly-projecting semicylindrical casting 15. The castings A, B are connected by bolts passed through the flanges 16, 17 on the castings 15 ,by a cross-bolt 18 secured to the limbs 10, and by a channel bar 19 bolted to ex. tensions 20, Fig. 4, of the members 11. The casting C comprises a semicylindrical portion 23 and side cover portions 21, 22, and is connected by bolts to the castings A, B. The motor 28 is supported by the bar 1 and lugs 31, 32 on the plates 12. The radiator 33 is secured by lugs 34 to the limbs 10. The dash-board 35 rests on the rear flange of the casting C, and is held in parallel alinement with the radiator by rods 36, which also support the gasoline tank 37. Shafts 45, 46, Fig. 3, each having a square hole 47, are mounted in ball bearings 49 in a short tube 43 bolted to the bar 19. The outer ends of the shafts are mounted in ball bearings 55 in plates 50 which are secured to thickened portions of the plate 13. Squared shafts 56, 57, carrying the driving-wheels 61, 62, are slidably mounted in the shafts 45, 46 and are held at different distances apart by a pin engaged in one of a series of holes 58.
Patent GB-1245211-A (GB)
Title: Sealing ring
IPC: D06F58/04
Filed: 1970-02-02
Abstract: 1,245,211. Coated products. FEDDERS CORP. 2 Feb., 1970 [27 Feb., 1969], No. 4905/70. Heading B2E. [Also in Divisions F2, F3 and F4] The laminated material for making a sealing ring consists of a felt layer 11 of polyester fibres and a backing 12 of silicone rubber (dimethylpolysiloxane) and is made by applying the backing to the felt by calendering or by a knife or spread coating operation and then passing the material through an oven to cure the backing and evaporate excess solvent, if present.
Patent GB-765398-A (GB)
Title: Improvements in or relating to transistor circuits having variable amplification
IPC: H03G3/12
Filed: 1955-02-18
Abstract: 765,398. Transistor gain control circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 18, 1955 [Feb. 23, 1954], No. 4922/55. Class 40(6) In an amplifier in which an input from source 1 is applied to the base of a transistor 3 and a negative feedback resistor 5 is arranged between collector and input, a resistor 6, small compared with resistor 5, is connected in the base lead. Variations in gain without appreciable lowering of the input impedance are obtained by a slider on potentiometer 5 connected to the base.
Patent GB-208437-A (GB)
Title: Improvements in grinding, burnishing, polishing or milling attachments for lathes
IPC: B24B27/00
Filed: 1923-02-20
Abstract: 208,437. Walker, J. Feb. 20, 1923. Attachments for milling; turning.-A milling- attachment for a lathe comprises a holder a adapted to be held in the tool rest e of the lathe and supporting the spindle of the milling-cutter b, which is driven through a flexible shaft q from a pulley i. The pulley is supported in a bracket j and is driven by a belt i<1> from one of the stepped pulleys k. The bracket is supported on the headstock by studs or screws l, several holes m for which are provided, whereby different pulleys k may be used to obtain different speeds of rotation of the tool. In place of the belt drive, a frictionwheel engaging a headstock pulley, or a spurwheel engaging a headstock gear-wheel may be used to drive the shaft g.
Patent GB-672052-A (GB)
Title: Light sensitive element
IPC: H01L21/10
Filed: 1950-02-27
Abstract: 672,052. Discharge apparatus. RADIO CORPORATION OF AMERICA. Feb. 27, 1950 [Feb. 28, 1949], No. 4974/50. Class 39 (i). [Also in Group XL (b)] The photo-sensitive plate of a transmitter tube of the orthicon or iconoscope type or of a vacuum tube element employed in connection with a flying light spot employs as the lightsensitive material red amorphous selenium, i.e. the form produced by vaporization of selenium in vacuo and its deposition on a cool surface, preferably maintained at a temperature below 50‹ C. In a tube of the orthicon type, Fig. 3, the amorphous selenium 42 is carried on a conductive plate 40 mounted on the end 36 of the tube 30. The selenium to be deposited on the plate 40 is placed in a small cavity 43 and vaporized by local heating-the plate 40 being maintained in a cool condition so that the vapour is deposited thereon. The electrode system for the tube comprises the cathode 44, grid 45 and a positively-charged accelerating electrode 46 having a beam-defining aperture 48 in its forward end. A wall coating 38 acts as a focusing electrode and a decelerating ring electrode 54 aids focusing around the edges of the signal plate. Surrounding the tube are deflection coils 56, focusing coils 58 and small alignment coils 60 to compensate for mechanical misalignment of the electron gun or target. In the iconoscope arrangement, Fig. 4 (not shown), a collector electrode in the form of a metal ring is disposed between the signal plate and a viewing window through which the picture is projected on to the selenium surface. A cylindrical accelerating electrode has an entrance aperture and an exit aperture which includes an annular focusing electrode. In a further modification, Fig. 5, the flying spot is generated by a cathode-ray tube 116 and the photo-sensitive elements disposed in an evacuated envelope 126 comprise a light-transparent film 134, a coating 132 of red amorphous selenium, a thin plate 130 of semi-conducting material and a mosaic 136 of a photo-emitting material, such as silver oxide in combination with caesium. The collecting electrode 122 comprises a coating of conducting material, e.g. stannic oxide or a metal, and is connected to ground via a resistor 138 to provide the output video signal. In operation the photo-emitting surface is charged negatively in accord with the picture intensity by the conduction of the selenium in response to the varying light and the flying spot causes electrons to be emitted and to travel to the collecting electrode 122. The conductive signal plate electrode in contact with the selenium may be gold, platinum, aluminium, beryllium, sputtered palladium or silver.
Patent GB-397537-A (GB)
Title: Improvements in or relating to the removal of ammonia from fuel gas
IPC: C10K1/08
Filed: 1932-02-19
Abstract: Ammonia is removed from fuel gas with the production of ammonium sulphate by continuously treating the fuel gas to remove tar and one half of its ammonia content, forming ammonium bisulphate with the ammonia so removed by reaction with sulphur dioxide and oxygen in the presence of water in one or more vessels and continuously contacting the so treated fuel gas with the resulting aqueous bisulphate in another vessel to produce ammonium sulphate.  Gases from a coke oven 1 pass via a stand pipe 2, a downcomer 5 and a collecting main 3 to a primary cooler 6 where they are sprayed with a circulating aqueous medium.  The cooled gases pass on through tar extractors 8, 9 and a reheater 10.  Ammonia liquor from the downcomer 5 and surplus liquor from the cooler 6 pass through a decanter 11 into a tank 17 feeding sprayers 4 in the collecting main 3.  Surplus liquor passes to a collecting tank 18<1> whence it is pumped through a pump 20 into a still 21.  Ammonia still gases pass through a pipe 32 and distributer 37 into a chamber 33 through which ammonia sulphate liquor circulates while at the same time sulphur dioxide and air or oxygen in a finely divided state are forced through a porous plate 34 into the liquid. The vessel 33 is preferably maintained at a temperature of 80 DEG  C. up to the boiling-point of the solution by means of a heating jacket 39 and the liquid is preferably maintained in an acidic condition by employing an excess of sulphur dioxide.  Bisulphate liquor passes through a trough 50 and a pipe 51 into a saturator 52, while fuel gas still containing one half of its ammonia content passes into the saturator from the reheater 10 through a pipe 55 and distributor 56. An ejector pump 65 forces the ammonium sulphate crystals through a pipe 66 on to a drain table 67 which is provided with a liquir draw-off pipe 68 and a spout 69 which feeds a centrifugal separator 70. The ammonium sulphate mother liquor passes from the saturator through a pipe 58 to a tank 59 and is pumped thence through a pipe 61 into the vessel 33 thus completing the cycle.  By regulating the supply of fresh water either to the vessel 39 or the tank <PICT:0397537/III/1> 59 and by controlling the temperature of the vessel 33 and of the gases entering the saturator 52 the volume of liquid in circulation may be maintained constant.  The ammoniacal liquors are preferably freed from hydrogen sulphide before reaching the still by means of a preheater 83.  A cooler 51<1> may be inserted in the pipe 51 to cool the liquors passing to the saturator to below 50 DEG  C.  According to a modification, the liquor passing from the saturator 51 is treated with gases containing sulphur dioxide in a tower and the resulting acid liquid is then returned to the vessel 33 where it is treated with oxygen and ammonia distillation gases with or without further sulphur dioxide.
Patent GB-960153-A (GB)
Title: Improvements in the testing of lamp proving circuits
Inventor: MILLER GEOFFREY DENNIS
IPC: H05B39/10
Filed: 1960-02-12
Abstract: 960,153. Lamp failure warning devices. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Feb. 3, 1961 [Feb. 12, 1960], No. 5002/60. Heading G4N. [Also in Division H3] A load-proving circuit is adjusted by connecting in place of the load, impedances which are automatically switched to cyclically simulate different conditions of the load. The method may be applied to the adjustment of the lamp-proving circuit of Fig. 1 in which the load take the form of a multifilament lamp signal circuit connected across the secondary of a supply transformer. The proving circuit itself is at a station remote from the load and may take the form of a relay ECR sensitive to changes in current through an adjustable resistor R in series with the supply line. In order to adjust the resistor, the circuit of Fig. 2 is connected in place of the load. It consists of three parallel resistors R 1 , R 2 , R 3  each capable of coarse and fine adjustment. Manual switch S is closed and resistor R 3  set so that the three resistors in parallel provide the equivalent of the total complement of filaments at their rated wattages. The transformer tappings are then adjusted to give the normal lamp voltages and the switch S is opened. An automatic switch P driven by a device D is set to connect alternately in circuit, at an appropriately slow rate, resistor R 1  and resistors R 1  and R 2  in parallel. These resistors have previously been set so that the current in the primary of the transformer alternates at the switching rate between the maximum for indicating the signal at fault and the minimum for indicating the signal in order. The resistor R, Fig. 1, may then be adjusted to cause the relay ECR to operate at the rate of the switch.
Patent GB-410066-A (GB)
Title: Improved method of balancing rotating bodies
IPC: G01M1/32
Filed: 1933-09-25
Abstract: 410,066. Testing balance of rotary bodies. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Thearle, E. L.; 1278, Dean Street, Schenectady, New York, U.S.A.) Sept. 25, 1933, No. 5051/34. Convention date, Sept. 23, 1932. Divided on 409,989. [Class 106 (ii).] Comprises in a method of balancing rotary bodies which determines the amount and location of an unbalanced mass therein, the step of subsequently applying to the body, in a position and amount sufficient to compensate for the mass, a body of plastic material which is subsequently hardened. The material used is a self-hardening composition comprising weight and strength producing substances such as white lead and asbestos in conjunction with a binding agent such as alkyd resin. An extrusion device for this material is shown in Fig. 2. The screw cap end of the thin walled container of well known form is screwed into the end of a cylinder 61 and a plunger 64 is advanced to collapse the tube by means of a reciprocating pivoted handle 65 a spring pawl 68 on which engages a rack 66 on the plunger rod. By swinging the pawl over the dead centre, the device may be used to retract the plunger. A pivoted knife 71 serves for cutting off the strip of material the length of which is measured on a scale 72 calibrated in accordance with the scale on the vibration indicator described in Specification 409,989.
Patent GB-124869-A (GB)
Title: Improvements in Ship Telegraph and like Signalling Apparatus.
Inventor: KEESEY JOHN ARTHUR
IPC: B63H21/22
Filed: 1918-03-25
Abstract: 124,869. Keesey, J. A. March 25, 1918. Mechanical telegraphs.-In a ship telegraph or like signalling-device in which an audible warning is given when the pointer of the indicator is moved from one indication to another, a bell is struck by two or more hammers operated successively to ensure non-failure of the audible signal. The apparatus described is of the type having signal and reply pointers 8, 10 moving over a dial, the transmission being by chains 14, 19 passing over pulleys 13, 16 moving with the pointers. The bell 26 has two hammers 21, 22 pivoted at 23, the short arms being attached to springs 24, 25. The hammers are operated by corresponding threearmed members mounted on a common pivot 27. Two arms of each member co-operate with the short arm of the hammer. The third arm 28 is in the path of teeth 33 on a disk 31 moving with the pointer. Two sets of teeth are provided, the teeth of one set alternating with those of the other set, so that the hammers are operated alternately. A modification is described in which the hammers are mounted at opposite sides of the bell and are operated by a single set of teeth engaging pawls pivoted on the hammer. In this form, the signalling pointers and mechanism may be duplicated to give two independent sets of signals on one dial, two corresponding toothed bell-operating disks being used. The pawls carried by the hammers are wide enough to engage both disks.
Patent GB-1098242-A (GB)
Title: Novel benzdiaz[1,4]epine derivatives and a process for the manufacture thereof
IPC: A61K31/00
Filed: 1965-02-08
Abstract: 7 - Chloro - 1 - (3 - dimethylaminopropyl) - 5 - (2 - fluorophenyl) - 2,3 - dihydro - 1H - benzdiaz [1,4]epinone-(2) and its acid addition salts are prepared by converting 7-chloro-5-(2-fluorophenyl) - 2,3 - dihydro - 1H - benzdiaz[1,4] epinone-(2) into its 1-sodio derivative, reacting this derivative either with a 3-dimethylaminopropyl halide or with a 3-halopropyl halide and treating the resulting 7-chloro-1-(3-halopropyl)-5 - (2 - fluorophenyl) - 2,3 - dihydro - 1H - benzdiaz[1,4]epinone-(2) with dimethylamine and, in either case if desired, converting the product into an acid addition salt.  The compounds of the invention are anti-convulsants, analgesics, muscle relaxants, sedatives, hypotensives and antidepressants, and may be administered in the form of pharmaceutical preparations containing them, with or without other (unspecified) active ingredients, in association with a carrier.  Reference has been directed by the Comptroller to Specification 1,050,401.
Patent GB-819603-A (GB)
Title: Improvements in thermostatically controlled fluid valve
Inventor: TYLER HUGH JEAN
IPC: F16K31/68
Filed: 1957-02-18
Abstract: 819,603. Valves. ROBERT8HAW-FULTON CONTROLS CO. Feb. 18, 1957 [June 28, 1956]. No. 5459/57. Class 135. A thermally-actuated valve 26 controlling hot water to a vehicle air heater has an actuating lever 106 pivotally mounted on a shaft 100 and urged respectively by spring 133 and thermal element 140 in opposite directions of rotation, a yoke 88 carrying the shaft, and a rotary cam 78 carrying the yoke, whereby the cam moves the shaft parallel to the line of action of the thermal element for setting the temperature at which the valve closes. The cam is rotated in bearings in a valve casing 76 by a spring-loaded lever 181 and Bowden cable 194 so as to turn in a cam opening 92 in the yoke. The valve is calibrated by a serrated wedge 161 sliding between the underside of the lever and the shaft and positioning the shaft in a lever slot 112.
Patent GB-355753-A (GB)
IPC: A61K51/12
Filed: 1930-02-18
Abstract: Highly active carbon, silica gel, or a similar substance is used as an absorbent of radium emanation.  Highly concentrated preparations can thus be obtained without the use of a pump for collecting the emanation.
Patent GB-843826-A (GB)
Title: Improvements in and relating to injection moulding machines for synthetic thermoplastic substances
IPC: B29C45/38
Filed: 1957-02-18
Abstract: 843,826. Injection-moulding machines. KREBS, K. Feb. 18, 1957 [Feb. 18, 1956], No. 5502/57. Class 87(2). An injection-moulding machine of the type having a tapered sprue connected to the mould cavity by a "needle-fine" gate so that the sprue remains in the mould and not on the moulded article, is characterised by the provision of an undercut in the nozzle to ensure the withdrawal of the sprue, with the nozzle, from the mould and by an ejector operable, on withdrawal of the injection nozzle, to pass between the nozzle and the mould to shear the sprue and to close the nozzle during the non-injection period. A divided mould 11, 12 for making an article 13, has a sprue opening with a gate 19 for the injection of plastic material by a cylinder 20 and nozzle 14 having an annular undercut recess 14a, the cylinder 20 and nozzle 14 being longitudinally movable in a frame 10 provided with an ejector 16 with an air passage 17. After moulding of the article 13, the mould is opened and the article removed whilst at the same time the nozzle withdraws, taking with it the sprue, the ejector 16 descends shearing the sprue from the nozzle whilst compressed air from the passage 17 blows the sprue clear of the machine and the ejector 16 closes the outlet of the nozzle. The mould is then closed, the ejector withdrawn, and the nozzle advanced for the next insulating. Safety devices may be provided to prevent operation if the ejector does not fully advance or retract. The ejector may be positioned in the mould and its action may be rotary or "rockable".
Patent GB-452432-A (GB)
Title: Improvements relating to the control of the flow of fluids of varying viscosity
IPC: G05D7/00
Filed: 1935-02-20
Abstract: 452,432. Valves. FRASER, R. P., 20, Margravine Gardens, Baron's Court, London. Feb. 20, 1935, No. 5516. [Class 135] In apparatus for maintaining a constant flow of liquid despite changes in viscosity due to temperature changes, such viscosity changes are compensated by variation of the area of a port 1 in the stream by relative movement, in accordance with the temperature changes, between the port and an obturator or mask 3 having an operative edge or surface 4 coinciding with the temperature-viscosity curve of the liquid. In Fig. 2, the port comprises a slit 1 in a fixed plate 2 and the masking plate 3 with its operative edge 4 is moved at right angles to the slit. Such movement may be imparted by the expansion or contraction of a sealed distendible container of capsule or Bourdon tube form containing fluid which may be the same as the controlled liquid. Alternately, one wall of the container may be formed by a yieldable piston or diaphragm. The coacting surfaces of the plates 2, 3 may be cylindrical. Such a form is shown in Fig. 4, in which an annular slit 12 is formed between the two parts 7, 8 of a piston which are joined by a bolt 9 and separated by a desired spacing washer 13 of a set of such washers. The control edge 4 is formed in a gap in an openended cylinder 5 fixed on a plate 6. A coil 20 containing fluid is exposed to the controlled liquid entering a chamber 22 at 24. The coil is connected to a chamber 19 closed by a push rod 17 having a sealing plug 26 at its lower end. The expansion of the fluid in the coil 20 is communicated by the push rod 17 sliding in a guide 18 to a ball 16 and thence to the piston 7, 8 so as to control the gap in the cylinder 5 to which liquid passes by way of holes 10, an annular space 11, and slit 12. The liquid passes out through a cap 15 housing a spring 14 pressing the piston downwardly. The piston is manually adjustable by means of a screw 25. A baffle plate 28 distributes the flow round the coil 20.
Patent GB-483254-A (GB)
Title: Improvements in or relating to coin-freed vending machines
IPC: G07F9/10
Filed: 1937-02-24
Abstract: 483,254. Coin-freed article-delivery apparatus. FITZPATRICK, H. J. (Maatschappij van Berkel's Patent N. V.) Feb. 24, 1937, No. 5517. [Class 27] In a coin-freed vending-machine in which the stack of articles is guided at the rear and sides by fixed members and at the front by a guiding member arranged immediately behind the door of the machine, the front guiding member c, Fig. 1, and the door k have separate pivotal mountings and both have transparent plates which register to allow the articles to be seen, when the front guiding member and door are both closed. The member c comprises a frame d with a glass pane e and is pivoted in its lower edge on horizontal trunnions g. It may be pivoted about its upper edge or about a vertical edge, and is provided with a manipulating knob f by which it is opened when the magazine is to be refilled. In a modification Fig. 3, a front guiding member common to four stacks l, m, n, o comprises a pane of glass r mounted at its foot in a metal channel member s provided with trunnions g.
Patent GB-252767-A (GB)
Title: Improvements relating to wireless receivers
IPC: H03H5/02
Filed: 1925-02-28
Abstract: 252,767. Taylor, R. G., and Rowbotham, J. Feb. 28, 1925. Undesired signals, eliminating or limiting.-A wave trap, forming a rejector circuit for undesired waves, and interposed between the receiving- aerial and the set, comprises a variable condenser A surrounded by two concentric cylindrical coils G, H, the coils and condenser being connected in series together with a fixed condenser J to form a closed oscillatory circuit. The aerial is connected to one terminal C of the variable condenser, and the aerial terminal of the set is connected to the other terminal D.