baber/WOPTO huggingface dataset:
Patent GB-556151-A (GB)
Title: Improvements in valves
IPC: F16K17/164
Filed: 1942-03-17
Abstract: 556,151. Valves. ADAMSON, R. A. March 17, 1942, No. 3493. [Class 135] A valve device adapted to be opened under manual control and close automatically in the event of failure of conduit pressure is fitted with a supplementary valve actuated during the closing movement of the main valve to prevent pressure reaching the actuating piston when conduit pressure is restored. In the form shown in the Figure a tapered sluice valve member 1 is connected by a screw-threaded spindle 3 and nut 20 with the end wall of a cylinder 19 slidably mounted on a fixed tubular member 18. The cylinder is loaded by weights 30 and is provided with packings 23, 24 engaging the nut and member 18 respectively. The space within the cylinder is connected to the main 2 through pipes 15, 17 fitted with a shuttle lift valve adapted to connect the pipe 17 either to the pipe 15 or a pipe 34 leading to drain. To open the main valve a rod 33 is moved to the left to move the valve so as to admit pressure fluid from the conduit 2 to the cylinder. As the cylinder reaches the end of its stroke a cam bar 32 moves into position to maintain the valve in this position. If the pressure fails the initial movement of the cylinder removes the cam from the valve 16 which then moves under spring load to its other extreme position connecting the cylinder to exhaust and permitting the weight load to close the main valve. In a modification the main valve is connected directly to a piston movable in a fixed cylinder connected to the main and exhaust through a three-way valve. This valve is moved to the position to admit pressure by a pull rod, which is afterwards coupled to the valve spindle by a lever and detachable counling so that as the main valve closes the cylinder is connected to exhaust. A further manually operated valve may be inserted in the pipe-line connecting the cylinder and main.
Patent GB-607437-A (GB)
Title: Improvements in or relating to rafting equipment
IPC: E01D15/22
Filed: 1946-02-04
Abstract: 607,437. Rafting equipment. WHITMAN, J. G., HOIROYD, L., BAILEY, D. C., and GALPIN, S. G. Feb. 4, 1946, No. 3513. [Classes 113 (i) and 113 (ii)] A raft on which loading ramps can be adjusted and locked at a suitable angle relative to the deck, which angle will remain constant during loading, comprises pontoons 79, spaced apart broadside-on and carrying a centrally disposed roadway 123, supported on box-like girders 85 connected together by connector girders 92 which are hinged to the girders 85 at the top and pinned through elongated slots at the bottom, thereby allowing limited articulation. At each end of the roadway 123, ramp girders 98 are hinged at the top to the girders 85 and connected at the bottom by adjustable rigid yokes 107. Hornbeam girders 97 are detachably secured to the top and bottom of the ramp girders 98. The ends of the hornbeam girders are connected by cables 120 to posts 116 pivoted at the bottom to the end girders 85. The posts 116 at opposite ends are connected together by cables 119 through turnbuckles 121 at each end. By this means the ramps can be raised or lowered, then locked in position by the yoke 107. In a modification, the roadway is mounted on the deck of the pontoons, the side girders being arranged to hinge and lie flat on deck during transport, and in operation to be directly connected to those of adjacent pontoons. Loading ramps are hinged at the bottom and adjustable for inclination at the top. A further smaller type is mounted on two folding boats and consists of a centre track with ramp tracks at each end, interconnected by a symmetrical system of linkwork allowing limited articulation and adjustment for inclination of the ramps.
Patent GB-750536-A (GB)
Title: Friction clutch
IPC: F16D13/16
Filed: 1954-02-05
Abstract: 750,536. Friction clutches. FROLY, C. Feb. 5, 1954 [Feb. 6, 1953], No. 3515/54. Class. 80(2) A friction clutch is carried by a supporting sleeve 3 in which the crank gear shaft 3a of a power driven bicycle can rotate, and comprises a belt driven stamped drum 1 engaged by shoes 14 moved radially when a driven sleeve 8 and sprocket 9 is moved axially leftwards, first to engage the shoes with the end of the drum and then, by continued axial movement, to pivot levers 24 between a supporting plate 6 and the shoes to engage them with the inside of the drum. Pins 18 fast in the supporting plate 6 engage radial slots 17 in the shoes 14 and are surrounded by compression springs 20 which urge the shoes against washers 19 fast on the ends of the pins. The levers 24 have fingers engaging recesses in the supporting plate 6 and shoes 14. The sleeve 8 is supported by bearings H on a sliding sleeve 10 fast with a stamped plate 29, having recesses 30, Fig. 3a, partially containing balls 40 also partially contained in recesses 34 in a stamped plate 33 fast with the supporting sleeve 3. The stamped plates 29, 33 are urged towards each other by springs 37. A cable 41 is operated by a control grip (not shown) which is released to allow a spring 43 to rotate the two stamped plates relatively to each other, when the balls 40 ride out of the recesses and the plate 29, sleeve 10, &c., move to the left to engage the clutch. The shoes 14 are urged radially inwards towards the disengaged position by springs 21, connected to weights 22 so arranged that the action of the centrifugal force upon them, when the clutch rotates, opposes the centrifugal force acting upon the shoes and tending to increase the pressure engaging them with the drum. The stamped plates 29, 33, &c., can be replaced by a cam or lever system. Alternatively, the drum 1 could be moved towards the shoe supporting plate 6 to engage the clutch, or the two parts could both be moved towards each other.
Patent GB-786138-A (GB)
Title: New ergot alkaloid derivatives and process of making same
Filed: 1956-02-03
Abstract: Ergot alkaloids and other derivatives of lysergic and isolysergic acids containing a -CO-N< group and a 9 : 10 double bond are exposed to light in aqueous solution, whereby the elements of water are added across the double bond.  The process may need 3-40 hours at 2-60 DEG C.  Preferably the starting material is dissolved in glacial acetic acid and this solution diluted with water.  The products can be isolated by standard methods, e.g. chromatography, and are usually obtained in two isomeric forms.  Examples show the treatment of ergotamine, ergotaminine, ergometrine, lysergic acid diethylamide, lysergic acid hydrazide, isolysergic acid hydrazide, lysergic acid butanolamide, ergosine, ergocornine, ergocristine and ergocryptine.
Patent GB-1480075-A (GB)
Title: Apparatus for treating a web
IPC: B41F15/38
Filed: 1974-08-21
Abstract: 1480075 Impression adjustment in screenprinter G S McGEE 21 Aug 1974 [27 Aug 1973] 03634/77 Divided out of 2480074 Heading B6G Apparatus performing an operation on a moving web and including two transverse surfaces extending above and below the web applying a pre-determined pressure to the web, is characterized by a device for altering the pressure by magnetic attraction or repulsion; two units having alternating magnetic poles spaced along their lengths are associated with the respective pressing surfaces, relative adjustment of the units in their longitudinal direction altering the positional relationship of the poles and thus varying the attraction or repulsion between the units and hence between the pressing surfaces. Preferably at least one of the pressing surfaces is a roller containing a magnetic unit. The invention is particularly applicable to the rotary screen printers of the parent Specification.
Patent GB-216918-A (GB)
Title: Improvements in and relating to the purification of hydrocarbons, particularly lighter petroleum fractions
IPC: C10G27/06
Filed: 1923-02-07
Abstract: Hydrocarbon distillates, including natural gases and gases and vapours produced by cracking hydrocarbon oils, are desulphurized &c. by treating the vapour with an aqueous alkaline solution of an oxidizing agent.  The hydrocarbons may be previously purified by p sulphuric acid.  In examples aqueous solutions of sodium or calcium hypochlorite containing 1.5-5.0 grams per litre of available chlorine and sufficient alkali to give an excess of 0.1 per cent in the spent reagent are preheated to the temperature of the vapour, and either sprayed or atomized into the vapours near the outlet of the dephlegmator or fractionating tower, or passed in countercurrent to the vapours through one of a series of scrubbers.
Patent GB-786081-A (GB)
Title: Improvements in means for mounting thread illuminating apparatus on roving, spinningand twisting frames or other like machines
Inventor: LONGMAN WILLIAM CHARLES
IPC: D01H13/16
Filed: 1955-02-09
Abstract: 786,081. Spinning &c. machines. WADSWORTH & SONS, Ltd., E. Feb. 8, 1956 [Feb. 9, 1955], No. 3792/55. Class 120(2) Thread illuminating apparatus for spinning, twisting &c. machines has a source of light a in a lamp house A mounted on a bracket A<SP>1</SP> carried by a pillar B fixed to the frame C in such a way that a beam of light falls vertically down on to a mirror D<SP>1</SP>, mounted on a bracket d carried by the pillar B, by which the beam is turned through 90 degrees to pass horizontally across the threads. Preferably the lamp a, which may be of the tungsten mercury vapour type, is enclosed in a tube a<SP>1</SP> at the bottom of which is a lens D to direct a parallel beam of light on to the mirror D\ which is mounted on the bracket d by a universal joint d<SP>1</SP>. Alternatively (Fig. 3, not shown), light is emitted horizontally from the source and is transformed by a mirror and the lens D into a vertical parallel beam which falls on the mirror D' as before.
Patent GB-603282-A (GB)
Title: Tube telescoping method and apparatus
IPC: A61F13/20
Filed: 1946-02-06
Abstract: 603,282. Tampon - introducers. Mc- LAUGHLIN. J. R. Feb. 6, 1946, No. 3804. [Class 81(ii)] [Also in Group XXVIII] Paper tubes 10, 11 are assembled in partly telescoped relation, Fig. 15, to form applicators for catamenial appliances by feeding the tubes in tandem along a guide and temporarily arresting the leading tube. The tubes 10 are nicked at the ends to facilitate frictional assembly and the ends of tube 11 are slightly rounded at 69. A machine (see Group XXVIII) for assembling the tubes is described.
Patent GB-542923-A (GB)
Title: Improvements in or relating to sound recording systems
IPC: G11B7/00
Filed: 1940-02-29
Abstract: 542,923. Optical sound recording. RADIO CORPORATION OF AMERICA. Feb. 29, 1940, No. 3812. Convention date, March 24, 1939. [Class 40 (ii)] In recording sound with " noise-reduction " by modulating a light beam in accordance with electric currents corresponding to instantaneous sound values and also varying the light beam in accordance with average value of said currents, an anticipatory step of variation is taken comprising a first stage at a fast rate for a low range of amplitude and a second stage at a lower rate for an upper range of amplitude. As shown in Fig. 1, a microphone 24 is connected in a known manner through an amplifier 25 and a line 27 to the coil 26 of a mirror galvanometer arranged in a known way to produce a double-hump track on a film 21. The " ground-noise " shutters 14 are operated by a coil 15 energized by a rectifier 28 connected by a transformer 32 with the amplifier 25. According to the invention, the circuit of the rectifier includes in addition to the filter 29, 30, 31, two potentiometer devices 35, 37 for biassing the direct current amplifying valve 33 connected to the coil 15, and an additional battery 44 with resistance 45 and switch 46 is provided across the coil 15. The switch 46 and switches 39, 40 in the potentiometer devices enable the action of the shutters 14 to be controlled as desired. In a second arrangement, Fig. 4 (not shown), the desired control of the shutters is automatically performed by means of two rectifiers with filters having different time constants. In a third arrangement, Fig. 7 (not shown), a single rectifying valve is used connected to two variable-Á valves by means of a potentiometer device, and the coil of the shutters is in the output circuit of the variable-Á valves.
Patent GB-997012-A (GB)
Title: Improvements in or relating to thiaxanthene derivatives
Inventor: JUCKER ERNST
IPC: A61K31/00
Filed: 1961-08-25
Abstract: The invention comprises compounds of the formula <FORM:0997012/C2/1> (wherein R1 is hydrogen or C1- 4 alkyl, an R2 and R3 are C1- 4 alkyl, or R2 together wit either R1 or R3 is C2- 5 alkylene (polymethylene) or -NR2R3 may be morpholino) and acid-addition salts thereof; and their preparation by reducing a compound of the formula <FORM:0997012/C2/2> which in turn may be prepared by reacting thioxanthone with an amide or lactam of the formula R1.CH2.CO.N.R2R3. Examples are given, and salts with inorganic and organic acids are described.  The thioxanthene derivatives of the invention are stated to exhibit a histamine inhibiting effect and may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-438104-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F27/12
Filed: 1934-02-06
Abstract: 438,104. Electric-transformer tanks with radiator elements. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. - (Assignees of Allgemeine Elektricitõts Ges.; 2, Friedrich Karl-Ufer, Berlin) Feb. 6, 1934, No. 3875. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 8, 1934]. [Class 29] The radiator tubes b of the tank a are provided with diametrically opposite fins c<1> in a plane at right angles to the row of tubes or with double-threaded helical fins c<2>, so that the tubes may be placed close together. The helical fins have a pitch equal to the length of the straight part of the tubes and those of adjacent tubes fit into one another.
Patent GB-239434-A (GB)
Title: Improvements in combustion-product engines
IPC: F02G3/02
Filed: 1925-02-12
Abstract: 239,434. Weir, Ltd., G. & J., and Weir, J. G. Feb. 12, 1925. Combustion-product engines and plant. - A number of cylinders a receive combustion products from a common combustion chamber b in which fuel, admitted by a pipe t, is continuously burned bv a current of air which is compressed in the cylinders a. Valves are provided in the air inlet and delivery pipes m, e and in the combustion-product inlet and exhaust pipes d, g of the cylinders. The combustion chamber b is surrounded by a high-pressure boiler p, the pressure in which is substantially the same as that in the chamber b. The engine may work on either a two-stroke or a foar-stroke cycle.
Patent GB-1123684-A (GB)
Title: Improvements relating to methods of producing maps and means therefor
Inventor: BRIGGS THOMAS STANLEY
IPC: G09B29/00
Filed: 1965-01-29
Abstract: 1,123,684. Making a map with a rectangular grid of latitudinal and longitudinal lines, from one based on a conical projection. FERRANTI Ltd. 26 Jan., 1966 [29 Jan., 1965], No. 3933/65. Heading G5G. A map having the lines of longitude and latitude arranged as a regular rectangular grid, is produced from a standard map 17 in which the lines of longitude converge on a point 18 off the map and the lines of latitude 21 are circular arcs centred on 18, by projecting an image of an elemental strip of 17 on to a light-sensitive surface e.g. in camera 11 by a focal plane shutter 13 containing linear slot 15 which is parallel to a longitudinal line and causing relative rotation between 17 and 15 about an axis passing through 18 normal to the plane of 17 and causing relative movement between the slot 15 and the light-sensitive surface in a direction normal to 15 in a plane parallel to 17. In Fig. 1, carriage 4, slidably mounted on rails 2, 3 for linear movement effected by rotating screw 5, carries platform 6 coupled to 4 by a pin-and-slot, 6 being provided with rollers engaging guide rail 9 which is bent to a circular arc parallel to 21; 11 is mounted on 4 by rods 12, while 13 is fixed to the base 1 by arm 14, 13 and 11 being connected by light-tight bellows 16. In Fig. 3, arrow 19 indicates the direction of rotation of 17 about 18 and arrow 20, the linear motion of camera 11.
Patent GB-555352-A (GB)
Title: Improvements in instruments for cutting plaster of paris or other bandages from the limbs or bodies of patients, or for cutting celluloid, synthetic resin or like materials
IPC: A61F15/02
Filed: 1942-03-26
Abstract: 555,352. Cutting-appliances. DRUCE, G. A. March 26, 1942, No. 3994. [Class 31 (ii) ] [Also in Groups XXIII and VI] A device for cutting away plaster &c. bandages or for cutting celluloid, synthetic resin &c. comprises a pair of crossed lever arms 1, 2 pivoted together at 3, one lever provided with a foot 10 to engage under the bandage and the other with a spindle 5 carrying a circular saw or knife 6 operated by a lever 8 or by a motor connected to the spindle of the saw by a flexible shaft. In a modification, Fig. 4, the circular saw 6a and its operating lever 8a are carried by a two-armed lever 16 actuated by a bell-crank lever 14 pivoted at 15.
Patent GB-451640-A (GB)
Title: Improvements in or relating to a combustion device
IPC: F23C5/28
Filed: 1936-02-10
Abstract: 451,640. Pulverulent-fuel and spray burners. PORTEOUS, W. J., 512, 7th Street, Saginaw, Michigan, U.S.A. Feb. 10, 1936, No. 4013. [Class 75 (i)] [See also Group XII] Liquid or pulverized fuel mixed with air is supplied to a cylindrical combustion chamber by a burner comprising diverging nozzles 4, 5 of rectangular cross-section supplied by a cylindrical pipe 6 which merges into a rectangular sectional form at 7.
Patent GB-290367-A (GB)
Title: Improvements in or relating to light sensitive cells and circuit arrangements therefor
IPC: H04N5/30
Filed: 1927-02-14
Abstract: 290,367. Wright, G. M. Feb. 14, 1927. Light-sensitive cells.-In order that time-lag may be neutralized a light-sensitive cell is connected effectively in series with an impedance having characteristics similar to the impedance characteristics of the cell, and the output voltage is tapped from this impedance. 'Thus (Fig. 1, not shown) the cell, a battery, and an impedance equivalent to the cell may all be connected in series, the output voltage being that across the impedance mentioned. Or a resistance 6, Fig. 2, may be connected in series with the cell 1 and battery in the usual way and the voltage drop in the resistance 6 may be applied through a valve 10 to an impedance 3 having characteristics similar to those of the cell. In a further modification the resistance 6, Fig. 2, is omitted.
Patent GB-1025111-A (GB)
Title: Improvements relating to solid state radiation detectors
Inventor: ROUSE ROBERT LINDSAY
IPC: H01L21/24
Filed: 1962-02-02
Abstract: 1,025,111. Semi-conductor radiation detectors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 21, 1963 [Feb. 2, 1962], No. 4145/62. Heading H1K. A method of manufacturing a PIN device comprises depositing a layer of lithium on the surface of a Group III-V semi-conductor, one of the elements of which has an atomic number greater than 32, heating the wafer to diffuse the lithium into the semi-conductor to form a PN-junction and then applying a reverse bias at a lower temperature to produce the required thickness of intrinsic region. The device produced has a wide intrinsic region and when reversely biased forms a gamma and X-ray detector. A circular wafer of P-type semiconductor has a circular patch of lithium evaporated on to its surface, and a layer of aluminium is evaporated on to the lithium to prevent surface oxidation. The wafer is then heated to 400 C. in a stream of argon to diffuse the lithium into the semi-conductor to form an N-type region. The device is encapsulated, as shown in Fig. 3, by mounting the P-type face of the wafer 6 on a copper spigot 7 attached to a copper base plate 4. The copper side wall 5 of the can is rectangular in shape, and a copper rod 8 passes through a ceramic bush 10 mounted in the wall 5. Leaf-spring 9, connected to rod 8, makes contact with the N-type surface of wafer 6. The can is filled with dry argon or dry air, or is evacuated and is then closed with an aluminium plate 11. The intrinsic region is now formed by passing a reverse current through the device at an elevated temperature. A circuit is described, Fig. 5 (not shown), in which the device may be placed to prevent thermal run-away during the forming step. A circuit is also described, Fig. 6 (not shown), in which the completed device may be used as a radiation detector. Suitable semi-conductors are aluminium antimonide, and indium phosphide. It is stated that the device can be removed from its encapsulation after the formation of the intrinsic region, etched to clean the surface, and then reinserted in its encapsulation.
Patent GB-492375-A (GB)
Title: Improvements in or relating to belt conveyers
IPC: B65G17/20
Filed: 1937-02-12
Abstract: 492,375. Endless - belt conveyers. PURALI, Ltd., and SIMON, A. Feb. 12, 1937, Nos. 4203 and 16441. [Class 78 (i)] [Also in Group XXV] A belt conveyer'in which the articles to be conveyed are suspended from the belt, comprises an endless belt which is supported by pairs of pulleys, the pulleys of each pair engaging supporting surfaces provided on the belt at opposite sides of the means for supporting the articles. Additional pulleys may be provided to prevent the belt rising off the supporting pulleys. In the embodiment shown in Figs. 1, 4, the belt A is guided between pulleys B supported from a framework B<2> on spindles B<1>, a number of these pulleys being separately driven by electric motors. In another embodiment all the driving pulleys are driven from one electric motor by means of pulleys rigid with the supporting pulleys and connected together by endless belts. The belt A consists of a core of stranded wire A<5> enclosed within strips A<3>, A<4> of leather, woven fabric, rubber or the like. In a modification, all the strips extend the full width of the belt. The ends of the belt may be secured together by members All, Fig. 10, secured to the ends of the core A<5>, the parts of the belt constituted by the leather or like material being cut away to provide overlapping parts A<12>, A<13> and connected together by cementing and stitching. In a further embodiment the belt is of T-crosssection and is supported by pulleys engaging under the arms of the T.
Patent GB-693647-A (GB)
Title: Improved process of and apparatus for pressing sheets of thermoplastic materials
IPC: B32B27/00
Filed: 1951-02-21
Abstract: 693,647. Presses. HAGEN, R. Feb. 21, 1951 [Feb. 24, 1950], No. 4248/51. Class 140. [Also in Group V] A sheet 16, of thermoplastic material is placed on an endless metal band 10 and the band is then moved to the right to place the sheet in position 16a between two hot platens 4, 7. Platen 4 is mounted, together with a cooled platen 5, on a lower crosshead 3, and platen 7 is mounted, together with a cooled platen 8, on a fixed upper crosshead 1a. Another endless metal band 14 covers platens 7, 8. Crosshead 3 is then raised by hydraulic cylinder 2 to press the sheet, between the bands, against platen 7. Crosshead 3 is then lowered and the bands move to the right to place the sheet in position 16b between the two cooled platens 5, 8 ; at the same time another sheet is carried from the left into position 16a. Crosshead 3 is again raised, the first sheet being cooled under pressure and the second sheet heated under pressure. The crosshead is again lowered, and the first sheet is delivered to position 16c. Thus at each pressing operation one sheet is heated under pressure and another sheet is cooled under pressure. Insulation 6, 9 separates the hot and cooled platens. Instead of a single press, as shown, there may be two presses, one hot and one cold. Instead of endless metal bands, loose thin metal sheets may be used. Instead of two temperature zones, as shown; there may be three, there being an intermediate zone between the heating and cooling zones.. Continuous sheets may be produced by overlapping adjacent sheets in the press. Compound sheets may be produced by pressing leather or artificial leather sheets with thermoplastic sheets.