baber/WOPTO huggingface dataset:
Patent GB-853057-A (GB)
Title: Method and apparatus for conducting thermal conductivity analyses on flowing streamsof gases
IPC: G01N27/18
Filed: 1957-01-15
Abstract: 853,057. Measuring thermal conductivity of gases. STANDARD OIL CO. Jan. 15, 1957 [Jan. 16, 1956], No. 1529/57. Class 40 (1). A thermal conductivity cell which contains a hot wire filament cooled by the gas to be measured has the filament shielded from the direct flow of the gas but accessible to two substantially equal streams diffused around the shield; the sensitivity is thereby reduced but the response time is short and the results are independent of variations in the rate of flow. In the preferred arrangement two such cells are arranged in a common block, the two heated wires being arranged in a Wheatstone bridge. The block 18 (Fig. 3) has two chambers 16, 17, the gas under measurement entering the former at 21 (at the bottom) and leaving it at 22; the chamber 17 is supplied with a reference gas via 25 the exit for which is at 25a; all these four ducts communicate with the respective chambers at the mid-points of the latter. In one form of chamber (Figs. 4, 6) the hot wire 13 is located in slots 32 cut in a cylindrical body which is fixed down the centre of the tube. Distribution channels 40 are arranged at 90 degrees to the slots and opposite the inlet and outlet channels so that gas flows up (and down) one of the channels 40, around the annular recesses (which extend the whole length of the chamber) and into the slots containing the wires, the exit path being through the recesses and out by the other channel 40. In another form (Fig. 8) the shielding is obtained by posts 42, 43 arranged respectively upstream and downstream of the wire 46 and attached to the end-plate. A further version (Fig. 10) has cylindrical segments 48, 49 to divert the gas stream. The principle of all these constructions is to provide a low resistance path for the gas on entry, followed by a path of higher resistance around the wires to avoid turbulence. Curves are given of the sensitivity and response time compared with known cells.
Patent GB-1496422-A (GB)
Title: Multiperiodic linear accelerating structures
IPC: H05H9/00
Filed: 1975-01-14
Abstract: 1496422 Linear particle accelerators CGRMEV 14 Jan 1975 [15 Jan 1974] 1613/75 Heading H1D A coupled-cavity accelerating structure has accelerating cavities Ca coupled by coupling cavities Cc which have the same radius as the accelerating cavities and an axial length which is greater in the region of the axis than in the region of the periphery. As shown, the structure is formed by brazing together a stack of similar elements at Jc and Ja, and each coupling cavity has a pair of 180 degree displaced coupling apertures T 1 . In further embodiments the coupling cavity length increases in a series of steps (Fig. 3, not shown) and a coupling cavity is disposed only between successive pairs of accelerating cavities (Fig. 4, not shown).
Patent GB-1155223-A (GB)
Title: Card Reading and Imprinting Apparatus.
IPC: G06C27/00
Filed: 1968-01-11
Abstract: 1,155,223. Checking receipts. AMP. Inc. 11 Jan., 1968 [31 Jan., 1967], No. 1659/68. Heading G4T. Apparatus adapted to receive a credit card 17 and overlapping sales slip 18 comprises a reading head 104 for reading data on a first part of the credit card, an imprinting roller 130 for transferring data on a second part of the credit card to the sales slip, drive means for moving the imprinting roller along an outward path and back along a printing or non-printing path, and a gating member 50 positioned at the end of the outward path to guide the imprinting roller along one or other of the return paths. The reading head feeds data from the credit card to a computer controlling the gating member according to whether the credit card is valid, or not. The reading head 104 is pivotally mounted at 45 and carries a cross-bar 100 supporting the impression roller 130 from side plates 112, 114. The roller shaft 136 supports a member 140 carrying an auxiliary impression roller 144. The impression rollers are urged towards the sales slip by springs 116, 118 when the reading head passes over the dead-centre position. Spaced guides 64, 68 are provided at one side of the apparatus and a guide 70 with co-operating gating member 50 at the other side. When the impression rollers are lowered, the shaft 142 supporting the auxiliary impression roller moves down the edge 66 of guide 64 and beneath the guide 68 while the shaft 136 rolls on guide 70. The gating member is held in a blocking position with head 51 engaging guide 70 by latches 82, 86. In operation, a peg 108 on the reading head releases latch 82 and if the credit card is valid a solenoid 92 is energized to withdraw latch 86 whereby the gating member moves rightwards under the action of spring 49 to receive the shaft 136 beneath the guide 70 so that the impression roller follows a printing path on its return stroke. A die 90 is lifted by solenoid 98 to press the sales slip against the auxiliary impression roller.
Patent GB-309639-A (GB)
Title: Improvements in and relating to presses for sheet metal
IPC: B21D28/08
Filed: 1928-01-18
Abstract: 309,639. Rhodes, C. J. Jan. 18, 1928. Metal-sheet feeds; spacing racks and like bars.-In a sheet metal press, particularly an automatic stagger punching-press, the work table is intermittently moved longitudinally of the press by a continuously moving endless belt to either of the, runs of which it is alternatelv clamped, stops being provided to hold the table against movement by the belt. The table 1, which has brackets 5 sliding on rods 5<1>, is clamped to either of the runs of a continuously driven endless belt 2 by clamps 11 secured to levers 8 pivoted on the rods 5<1> and drawn together by springs on rods 9. 'The levers 8 are connected by links 16 to a bar 18 provided with levers 19 which engage cams 21 on a rock shaft 6 at opposite ends of the traverse, so as to reverse the bar 18 and thus clamp the other run of the belt to the table for the return motion thereof. The table has a pair of oppositely facing spring- controlled pawls 14, 15, which in opposite movements of the table respectively engage spaced stops 7 in the rack shaft to hold the table stationary during operation, during which period the belt slips between the gripping surfaces.
Patent GB-523986-A (GB)
Title: Improvements in or relating to the production and use of solutions of high molecular weight sulphur-containing condensation products
IPC: C08L81/04
Filed: 1939-01-18
Abstract: 523,986. Olefine-polysulphide resins. RUTGERSWERKE AKT.-GES. Jan. 18, 1939. No. 1787. Convention date, Jan. 25, 1938. [Class 2 (iii)] Solutions of olefine-polysulphide resins are prepared using as solvent basic fractions of coal tar, brown coal tar or other distilled tars. The solvents are preferably pretreated with sulphur to stablilize them. The solutions may be used for coating or impregnating. The resins may be purified or regenerated by dissolution, removal of the undissolved material and recovery of the resin.
Patent GB-538370-A (GB)
Title: Improvements in and relating to footwear
IPC: A43B13/04
Filed: 1940-01-29
Abstract: 538,370. Boots &c. SOC. ANON. POUR LE COMMERCE ET L'INDUSTRIE DU CAOUTCHOUC., and ROLLMANN, KAUFMANN & CO. Jan, 29, 1940, No. 1790. Convention date, Feb. 3, 1939. [Class 17 (ii)] In shoes of the kind in which a sponge rubber sole or heel, or both, is secured to an upper by vulcanization or stitching, the edge of the sole &c. has embedded in its edge textile threads, strings or the like, which may be arranged as a network, or fragments of granulated cork &c. or a combination of such materials, the embedding being preferably flush with the surface of the sole &c.
Patent GB-1532057-A (GB)
Title: Analysis
IPC: G01N33/52
Filed: 1976-01-16
Abstract: 1532057 Centrifugal separators F HOFFMANN-LA ROCHE & CO AG 6 Jan 1976 [28 Feb 1975] 01825/76 Heading B2P [Also in Divisions Gl and G2] An analysis process comprises the following steps:-(a) a specimen for analysis is mixed with one or more reagents in a vessel having a target portion of progressively decreasing cross-section; (b) the mixture is incubated; (c) the incubated mixture is then centrifuged so as to hurl agglutinates to the narrow end of the target portion which is disposed in the direction of the centrifugal force with the result that the agglutinates stick to the solid narrow end whereas unagglutinated elements remain free thereon, whereafter (d) centrifuging is stopped and the nature of the reaction which has occurred is determined by observing the presence or absence of agglutinated or non agglutinated elements after a time sufficient for their separation. The process may be directed to an analysis of blood and in this instance the blood is first separated into globules and plasma such as by centrifuging. The globule specimen to be analyzed may be treated with an enzyme e.g. bromelin to accelerate the agglutination or dumping. Before the mixing step, the vessel is suitably covered internally with a thin layer of proteins e.g. ox-blood serum albumins. To facilitate mixing, the vessel may be vibrated in a horizontal or vertical plane. A suitable vessel 1 is shown in Fig. 1 secured to a support 2 and rotatable about centrifugal axis Z. The support may be in the form of a ring on a disc carrying a number of vessels. The vessel is provided with an aperture 3 for the introduction of specimen and reagents and on centrifugation agglutinated particles will be hurled to position 7 the point of narrowest cross section. The nature of the reaction occurring in the vessel may be determined automatically by means comprising at least a microscope and a photoelectric cell (Figs. 9 and 22, not shown). Alternatively, the specimen or reagent is radioactive and the nature of the reaction may be determined by means of a radioactivity counter.
Patent GB-829158-A (GB)
Title: Improved vehicle front suspension
IPC: B60G3/20
Filed: 1958-01-20
Abstract: 829,158. Resilient mountings. GENERAL MOTORS CORPORATION. Jan. 20, 1958 [Feb. 12, 1957], No. 1837/58. Class 108(3) [Also in Group XXXI] A spring 40, Fig. 3, for connecting a wheel suspension member 18 to a vehicle side rail 14 comprises a resilient ring 64 of elastomeric material which is radially compressed between concentric sleeves 62, 66 to increase the radial rate of load deflection. The sleeve 66, Fig. 5, comprises semi-cylindrical sections which are received within an outer sleeve 60 which maintains the material in compression and is welded to brackets 112 on the cross-member 18. A flanged end 68 of the ring 64 has radially disposed ribs 74 which are engaged between flanges 72 and a frame plate 56 to provide damping during large axial deflections. A resilient ring 76 with similar radial ribs 82 is attached to an endplate below the mounting to minimize axial deflections in the opposite direction. In a modification the resilient ring is built up from a number of annular pads of spring wire mesh.
Patent GB-240700-A (GB)
Title: Improvements in or relating to the manufacture of paper
IPC: D21F1/44
Filed: 1925-01-22
Abstract: 240,700. Allan, J. S., and Wiggins, Teape, & Co. (1919), Ltd. Jan. 22, 1925. Dandy rolls and watermarking.-A watermark showing more opaque or darker than the sheet is provided by impressing on the paper a suitable solution by means of a marking roll 6. As solutions, alcohol with a trace of dye, or oil of turpentine with or without a trace of colour, may be used. The liquid is fed to the roll 6 by a roll 5 in a trough 8 and pressure is applied by a rubber, fibre, or like roll 7. The type is secured in slots in the roll 6 by fillets, or rubber rings provided with raised letters may be used. The roller 5 may be replaced by a felt or like pad dipping in the solution in the trough 8 and wiping the type surface of the roll 6.
Patent GB-554574-A (GB)
Title: Improvements in or relating to high frequency tube structures
IPC: H01J25/10
Filed: 1942-02-13
Abstract: 554,574. Velocity-modulated discharge tubes. SPERRY GYROSCOPE CO., Inc. Feb. 13, 1942, No. 1964. Convention date, April 24, 1941. [Classes 39 (i) and 40 (iii)] In a velocity modulated electron discharge tube using hollow resonators as described in Specification 523,712, tuning of the resonators singly or together is effected through tapered pins 19, Fig. 4, moved by micrometer screws 16 to adjust screws 22 ; these are held in flanges 13, 14, Fig. 6, on the resonator chambers, 10, 10<SP>1</SP>, whose flexible walls 3, 4, are secured at the centre to the drift tube 5. The screws 16 are carried by a block 11 on the tube 5, the resonator chambers being drawn to the block by three tension springs 12. There are three sets of pairs of screws 22 all originally adjusted by screw driver ; one set has no fine adjustment; of the second set only one screw 22 is moved through a tapered pin but of the third set both are moved for tuning. The thrust from the tapered pin to the screws 22 may be througn balls 21 or through a spring 23, Fig. 10. The grids-through which the electron stream passes -may be formed as shown in Fig. 8 or in Fig. 9. The cathode 41, Fig. 7, is supported 'by six rods 40 connected alternatively in pairs to form a firm support. The concentric lines forming the connections to the resonator chambers each consist of a wire 33 doubled back to form a loop 34, the end 35 being held between a tube 32 and sheath 29, insulation 37, 38 being provided for the wire. A socet 31 couples the concentric lead to the sheath and wire.
Patent GB-1001148-A (GB)
Title: Automatic weigher for products having a relatively high unit mass
IPC: G01G13/00
Filed: 1963-01-16
Abstract: 1,001,148. Automatic feed weighers. TRAYVOU S.A. Jan. 16, 1963 Jan. 16, 1962], No.1977/63. Heading G1W. An automatic feed weighers has two balances one mounted above the other, the arrangement being that an upper rough-weigh container 7a (Fig. 1), supported on a beam 4a receives articles from a main feed shoot 49 (Fig. 3) and when filled discharges them into a lower fine-weigh container 7b supported on a weigh beam 4b, which container receives a dribble feed to the correct weight. In operation articles are fed simultaneously to the two containers some along the main feed shoot 49 and some in single file along a fine feed vee shaped shoot 50, 54 and down a duct 23 so that the upper container is being rough filled while the lower one is being topped up. If the lower container 7b is full before the upper one 7a then articles on the fine feed shoot 50, 54 are diverted on to the main feed shoot 49 by a rockable flap 56 which is moved to the dotted line position (Fig. 3) by a solenoid 61 when a switch 17b on the beam 4b is closed. This switch closes when the load in the lower containers balances an adjustable counterweight 5b on the beam. The switch closure also causes flaps 24, 25 to close the outlet of duct 23. A switch 17a operated similarly is provided on the beam 4a which on closure de-energizes an opening solenoid 43 thus allowing a spring 42 to close an outlet flap 39 on the shoot 49. Under external control (not described) a discharge flap 8b on the container 7b is opened by a solenoid 15b. This solenoid is then de-energized and the flap 8b closes by gravity and operates a contactor 8. This initiates the operation of a set of sequence relays (not shown) which initiate and control each operating cycle. Weighing must be finished in both containers and contacts 17a, 17b both closed, before commencement of a new cycle. Articles are supplied to the shoot 49, 50 from a hopper 34<SP>1</SP> through a load detector 35 which is pivoted at 36 and operates electrical contacts 37 in a control system of the hopper to reduce the rate of flow therethrough when the weight of articles passing through the hopper exceeds a critical value as determined by a balance weight 38. The shoot assembly is resiliently connected at 33 to side bars 34 secured to a base unit 29 and movement of articles thereon is assisted by a vibrator 37. There are arrangements to lock the balance beams when the containers are being filled.
Patent GB-577034-A (GB)
Title: Improvements in and relating to the manufacture of alkali metal sulphides
IPC: C01B17/30
Filed: 1940-02-01
Abstract: 577,034. Alkali metal sulphides. LOWES, A. P., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 1, 1940, No. 1983. [Class 1 (iii)] [Also in Group XXXVI] Alkali metal particularly sodium sulphide solutions are obtained by flowing an alkali metal polysulphide solution co-currently with a stream of liquid alkali metal amalgam, the flows being regulated so that on completion of the reduction of the polysulphide the amalgam still contains alkali metal. Both components are preferably used at elevated temperatures, so that when the liquor leaving the reaction vessel is at a temperature between 85 and 105‹C., sulphide crystals form at 80‹C. A lagged troughshaped elongated reaction vessel with a slightly inclined plane bottom may be used. Specifications 470,033 and 495,102 are referred to.
Patent GB-600189-A (GB)
Title: Improvements in flux valves or saturable core devices
IPC: G01R33/02
Filed: 1944-02-03
Abstract: 600,189. Magnetic tests and measurements. SPERRY GYROSCOPE CO., Inc. Feb. 3, 1,944, No. 2030. Convention date, Feb. 3, 1943. [Class 37] A flux valve has one or more legs, each comprising parallel elongated core members of magnetic material, a primary or exciting winding producing a flux passing along one of the core members and returning along the other, and a secondary or pick-up winding including both members in its interior. The flux valve shown in Figs. 1 and 2 comprises three tubular legs 2 of high permeability magnetic material each containing an inner core 3 carrying exciting windings 4, 5 which circulate flux through both the inner and outer cores in opposite directions. The magnetic circuit of the inner and outer cores is completed through end members 6 and an integral or independent central member 7. A secondary or pick-up coil 8 surrounds the outer core 2. The three legs may be soldered or welded together at the centre, or an air space may be left at their adjacent ends, the core legs being disconnected. Collector horns 9 may be fastened to the core legs by screws 10. The exciting coils in the three legs of the valve may be series connected across a source of alternating current and the pick-up coils may be star connected. The opposing E.M.F's. induced by the exciting windings in the pick-up winding may be balanced by making the inner core member 3 carrying the exciting windings adjustable axially, or by making the intermediate member 7 adjustable axially. In a modification, Figs. 17 and 18, the three legs are formed by upper and lower Y-shaped strips or laminations 34, 35 of highly permeable magnetic material. These laminations are fastened to a central spacer 36 and their' ends are separated by spacers 37. The spacers 36, 37 may be of magnetic or non-magnetic material. Between the laminations of each leg portion is a core 38 carrying an exciting winding 39. Pick-up coils 40 surround both the laminations 34, 35 of each leg and may be adjustable along the legs to provide a minimum of undesired induced E.M.F's. therein. Collector rings 41 are fastened to the ends of the core legs by screws 42 which also fasten the flux valve to an insulating base 43. In another modification, three legs constructed as shown in Fig. 2 are arranged in the form of a triangle. The Specification as open to inspection under Sect. 91, includes also a modification in which an axially adjustable magnetic ring is arranged over the exciting winding or the pick-up winding. This subject-matter does not appear in the Specification as accepted.
Patent GB-935408-A (GB)
Title: Shaft seal for gas-filled electric machines
IPC: F16J15/40
Filed: 1962-01-22
Abstract: 935,408. Stuffing-box substitutes. BROWN, BOVERI & CO. Ltd. Jan. 22, 1962 [Jan. 24, 1961], No. 2192/62. Class 122 (5). In a shaft seal for an hydrogen-cooled turbogenerator or other gas-filled electric machine and comprising a sealing ring 3 movable in a stationary seal housing 2 and surrounding the shaft 51 with a small clearance 7 supplied with sealing liquid, e.g. oil, at a pressure higher than that of the gas in the machine, an annular chamber 4 defined by the housing 2 and the ring 3 is kept at least partly occupied by gas or is under vacuum to thereby avoid an hydraulic coupling between the ring 3 and the housing 2, which is undesirable when the ring oscillates due to radial vibration of the shaft. In the arrangement shown in Fig. 1, sealing liquid is supplied to the clearance 7 through passages 5 and 6 and a rubber &c. tube 8 which is closed and may be filled with gas is housed in the chamber 4. In the modification shown in Fig. 2, sealing liquid is supplied to the clearance 17 between the shaft 11 and the housing 13 through passages 15 and 16 and the annular chamber 14 either communicates with atmosphere or is under vacuum or filled with gas, any sealing liquid leaking into the chamber passing out through an outlet 20. Part of the sealing liquid is utilized to automatically balance the axial forces acting on the ring 12 by connecting a radial gap 19 to the passage 16 by a throttle bore 18.
Patent GB-158246-A (GB)
Title: Improvements in and relating to devices for locking and limiting the opening movement of doors
IPC: E05C17/02
Filed: 1921-01-15
Abstract: 158,246. Watterich, A. June 21, 1919, [Convention date]. Door chains and the like; latches, sliding; night latches and like spring locks.-An arm 3 carried by the door slidably engages with a slot 6 in the top plate of the lock casing 5 to limit the opening movement of the door and hold it in the slightly open position, and a bar 10 which projects into the open end of the slot is arranged to be depressed so that the door may be fully opened when desired by pressing the levers 30, 37 one towards the other; or the bar may be lowered by a key operated either from the inside or the outside of the door. By raising the lever 37 about the pivot 33, the projection 35 engages a lug 28 on the tumbler 26 to permit the slidable member 18 to be moved to the left by the depression of the lever 30. The member 18 has an inclined front end 19 engaging with a roller 12 on the bar 10, which is thereby lowered. This movement of the bar 10 retracts the bolt 38 against a spring 40 by the engagement of an incline 13 with a roller 43. The door can then be fully opened, the end 7 of the arm 3 being free to leave the slot 6. To hold the door ajar, the bolt is first pulled back by hand, and released when in a position to engage the other side of the free edge of the door. The movement of the door brings the end 7 of the arm 3 into the left hand side of the slot 6. The bar may also be lowered into the release position by a key inserted through a keyhole 25 to act on the slidable member 18, or by a key inserted in the lower end of the casing 16 so as to engage with the spindle 14, with which it engages by a bayonet-slot connection.
Patent GB-629247-A (GB)
Title: Device for actuating brakes or other hydraulic pressure means
IPC: F16D65/28
Filed: 1946-01-23
Abstract: 629,247. Riveting. RIBIS, G. P. G. Jan. 23, 1946, No. 2252. Convention date, April 2, 1942. [Class 83 (iv)] [Also in Groups XXIX and XXXIV] The Specification as open to inspection under Sect. 91 describes a hydraulic riveting machine comprising a piston 64 operated by pneumatic pressure to force a plunger 63 into a hydraulic cylinder 16 to cause liquid to now through a passage 62 in a fixed member 61 into a cylinder 87 where it operates a piston 66 biassed by a spring 67 to move a set 88 up to a rivet 68. When the set has engaged the rivet so that the pressure in cylinder 16 rises, a double piston 9 compresses a spring 12 and moves to the right to close the outlet from passage 62. The piston 9 then operates as a pressure intensifier. This subject-matter does not appear in the Specification as accepted.