baber/WOPTO huggingface dataset:
Patent GB-912359-A (GB)
Title: Improvements relating to fountain pens
IPC: B43K7/03
Filed: 1958-02-20
Abstract: 912,359. Reservoir pens. DAVENPORT, R. J. Feb. 20, 1959 [Feb. 20, 1958], No. 5620/58. Class 146 (3). In a reservoir pen with manually-operable means for increasing the air pressure in the ink reservoir to cause the ink to flow towards the writing point, a bellows has its interior in communication with the reservoir by means of a one-way valve, whereby expansion of the bellows sucks air into the bellows and compression of the bellows causes air to be forced through the one-way valve into the reservoir. As shown, a ball-point pen of the point-retracting kind comprises a two-part barrel 15, 16 having an ink reservoir and writing unit 33 secured in a member 28 which has a neck portion 27 slidably mounted in the barrel, the unit being urged inwardly of the barrel by a spring 34. The writing unit may be urged into writing position by a plunger 22 on a known projection mechanism 20 carried by a cap 18 which is slidably mounted on the barrel 15. The plunger 22 is within a bellows extension 23 of the mechanism 20, and a washer 24 on the bellows abuts a face 25 within the barrel and encloses the free end of the neck 27. A hole 30 in the neck 27 terminates within the reservoir in a one-way valve 32. The barrel has opposed air holes 26 adjacent the washer 24. When unit 33 is retracted, the bellows 23 expands, and air is sucked in through the holes 26 and the end of the washer 24. When the cap 18 and mechanism 20 is depressed, the air trapped within the bellows is compressed and forced into the unit 33 through the hole 30 and one-way valve 32. On continued movement of the cap &c., the plunger 22 engages the neck 27 and projects the writing unit into writing position, where it is locked by known means. In a modification (Fig. 1, not shown), a bellows which is secured to, or integral with, a ball-point writing unit arranged in a barrel, is compressed by depressing a knob at the end of the barrel. The writing unit may be extended to form a bellows, and two one-way air valves are arranged therein, the valves comprising short lengths of rubber tubing with flattened ends.
Patent GB-406131-A (GB)
Title: Improvements in or relating to ferrous alloys
IPC: C21D8/00
Filed: 1933-02-24
Abstract: In a method of making articles containing graphitic carbon a ferrous alloy or steel ingot containing carbon and a carbon precipitant is hot worked while the carbon is mostly if not entirely in combined form and after working is heated to a temperature above the critical point to graphitize a substantial amount of the carbon.  The steel may contain about 1.5-2 per cent or more of carbon and 0.6-0.9 per cent of silicon which may be partly replaced by other elements such as nickel.
Patent GB-286599-A (GB)
Title: A process for separating out the mother liquor from crystals or crystalline bodies
IPC: C13B30/10
Filed: 1928-02-24
Abstract: 286,599. Raffinerie Tirlemontoise Soc. Anon. March 5, 1927, [Convention date]. Refining sugar.-A dry centrifugal process for separating mother liquor from sugar crystals and massecuites at high speed is carried out in airtight drums to prevent the circulation of external air through the crystal layer, thus facilitating the separation of the syrup without causing it to adhere to the crystals.
Patent GB-608516-A (GB)
Title: Improvements relating to cation-exchange resins
Filed: 1946-02-25
Abstract: Cation-exchange resins are prepared by condensing in alkaline solution a sulphited tannin other than myrobalans (or such a tannin and a sulphiting agent such as sodium sulphite or metabisulphite, sulphur dioxide and alkali, or mixtures thereof), phenol, hydroquinone, catechol or resorcinol or mixtures thereof, and an aldehyde, e.g. formaldehyde, the additional phenol being present in the proportion of 0.62 to 1.5 mols. per atom of sulphur introduced as sulphited tannin or as sulphiting agent and the tannin being so highly sulphited or the sulphiting agent being present in such large proportion that in the absence of the additional phenol a soft and colour-throwing product would be obtained.  The proportion of sulphiting agent to tannin may be equivalent to 0.64 to 1.12 (preferably 0.88) gram-atoms of sulphur per 100 gms. of tannin.  In a modification, part of the sulphited tannin is replaced by a water-soluble sulphonated phenol, cresol, catechol, hydroquinone or a mixture thereof, the proportion of sulphited tannin to sulphonated phenol being at least 3 : 2, and 1/2 to 1 1/2 mols. additional mono- or di-hydric phenol is present per mol. of sulphonated phenol. Tannins specified are quebracho, gambier and mimosa.  During or subsequent to drying, the resins may be heattreated above 120 DEG  C. In examples: (1) quebracho tannin is heated with sodium metabisulphite in alkaline solution, then condensed with phenol and paraformaldehyde; (2) resorcinol is condensed with formaldehyde in the presence of caustic soda, then quebracho tannin, sodium metabisulphite, phenol and paraformaldehyde added and further condensed; (3) and aqueous solution of quebracho tannin, sodium metabisulphite and caustic soda was mixed with sulphonated phenol, and condensed with phenol and paraformaldehyde.  Specifications 450,308, 474,361 and 588,380 are referred to.
Patent GB-466054-A (GB)
Title: Improvements relating to centrifugal pumps
IPC: F04D1/10
Filed: 1936-02-27
Abstract: 466,054. Centrifugal pumps. LEE, HOWL, & CO.. Ltd., and CLARK, C. B. Feb. 27, 1936, No. 5870. [Class 110 (i)] A centrifugal pump of the kind having a plurality of.impellers which can operate either in series or in parallel has the impellers provided in the two end sections a, b of the pump body and arranged on a common shaft so as to be balanced against end pressure, and the inlet and outlet connections together with various ducts and valves are arranged in the middle section c, the valves being operable to give the series or parallel flow. Fig. 1 is a sectional plan of the pump and Fig. 2 is a transverse section taken through the middle section containing the ducts. The impellers are each of the two stage type. Liquid from the entrance duct d passes to the first stage of the impeller g and is fed by ducts p, q to the second stage of such impeller g which delivers it by ducts s to a chamber t opening to a valve chamber u. If the valve k is open this liquid passes to the chamber v and so to the second impeller f, the non-return valves l being automatically closed by the pressure. Ducts p<1>, q<1> lead the liquid from the first stage of this second impeller f to the second stage whence the liquid passes by ducts s<1> to a chamber t<1> opening to the delivery e. If the valve k is closed the first impeller g delivers the liquid past a non-return valve m and so directly to the delivery duct e. A branch w from the inlet duct d leads to the underside of the non-return valve l and allows liquid to pass to the chamber v and the second impeller f ; thus the two impellers act in parallel. The main valve k may be operated by hand or automatically by the pressure. The branch w may be formed so as to permit a second suction pipe being connected. The chamber v may also be arranged for attachment of a suction pipe. A water-ring air pump may be provided for priming.
Patent GB-1458057-A (GB)
Title: Prevention of plume in stack emission from sulphur dioxide scrubber
IPC: B01D53/77
Filed: 1974-02-08
Abstract: 1458057 Removal of sulphur oxides from gases AIR PRODUCTS & CHEMICALS Inc 8 Feb 1974 [26 Feb 1973 12 Sept 1973 2 April 1973] 05911/74 Heading C1A In a process for the scrubbing of combustion gases with aqueous ammoniacal solution for the removal of contained sulphur oxides, the formation of smoke discharged from the stack is reduced or eliminated by controlling the concentration of the components within the scrubber such that the logarithm to the base 10 of the product of the partial vapour pressures of SO 2 , NH 3  and H 2 O does not exceed the value 31À2-(17,300/T) wherein the partial pressure is expressed in millimetres of mercury and T is the absolute temperature in degrees Rankine. The gas is preferably washed with water prior to contact with the ammoniacal scrub liquor to saturate the gas with water vapour and to reduce the hydrogen chloride content to less than 10 p.p.m. The scrubbing is preferably carried out in several stages and the scrubbing liquid is recycled. Prior to discharging the effluent into the atmosphere it is preferably re-heated, suitably to 35 to 70 F., above the absorption temperature. The gases are preferably also, or alternatively, washed with an aqueous acidic solution, preferably of pH less than 3, prior to discharge of the gases. The acidic solution may suitably be provided by a portion of the solution obtained by water washing of the gas in the initial stage.
Patent GB-1501546-A (GB)
Title: Combined slack-adjuster and cylinder-piston unit
IPC: B61C15/00
Filed: 1976-02-16
Abstract: 1501546 Combined slack-adjuster cylinderpiston unit SVENSKA AB BROMSREGULATOR 16 Feb 1976 [17 Feb 1975] 05930/76 Heading F2E [Also in Division B7] A combined slack adjuster and fluid pressure controlled cylinder-piston unit, for applying a block to a wheel tread, for example, for applying a scrubber block 5<SP>1</SP> to a rail wheel tread, has a toothed piston-rod 9 attached to the piston 6 of the unit and co-operable with a toothed locking element 15 arranged in the cylinder 1 to move in one direction to a limited extent while the pistonrod 9 moves through a distance A forward in the application direction corresponding to the desired slack between the block 5<SP>1</SP> and the tread whereupon the locking element 15 is prevented from further substantial movement in the said one direction if the piston-rod 9 moves further forward, and thereafter the locking element 15 allows the piston-rod 9 to move rearwardly and then locks the piston-rod 9 against further rearward movement relative to the cylinder after a piston-rod return movement equal to the said distance (A). In the embodiment of Figs. 1, 2 the locking element 15 is arranged on a pin 12 which extends through an axial slot 9<SP>1</SP> in piston-rod 9 and is guided in slots in two lugs 12 on a cover 1<SP>1</SP> of the cylinder 1, the length of which slots corresponds to the diameter of a pin head 11<SP>1</SP> and of a guiding sleeve 13 plus the distance A. A nut is screw-threaded on to pin 11, and the locking element 15 is urged against the toothed pistonrod 9 by means of spring 16. If during actuation of the scrubber block 5<SP>1</SP> by application of fluid pressure through an inlet 7 the slack exceeds distance A the locking element 15 is prevented from making any further substantial movement in the forward direction after distance A has been passed, and during return movement the piston-rod 9 will only move distance A until the pin 11 reaches the rear ends of the slots in lugs 12. In the modification of Fig. 3 (not shown), the locking element (17) (optionally urged by a spring) is rockably mounted in a recess in the cylinder cover (1<SP>1</SP>)-during the application movement the element (17) rocks so that after motion of the rod (9) exceeding the distance A the locking element (17) is prevented from making any further substantial movement in the counter-clockwise direction. In the modification of Fig. 4 (not shown), the locking element (18) is wedge-shaped and is arranged in a wedge-shaped recess in cover (1<SP>1</SP>).
Patent GB-597633-A (GB)
Title: Improvements in electric generators of the induction type
IPC: H02K17/42
Filed: 1944-03-31
Abstract: 597,633. Induction machines. GENERAL ELECTRIC CO., Ltd., and FRIEDLANDER, E. S. March 31, 1944, No. 5996. [Class 35] In an induction generator with an unwound rotor and particularly for a frequency of the order of 400 cycles, the cross-section of the rotor is not more than 60 per cent that of the stator so that the latter is unsaturated when the rotor is saturated.
Patent GB-984035-A (GB)
Title: Improvements in machines for coiling textile slivers
Inventor: SMITH ALAN
IPC: B65H54/80
Filed: 1963-02-14
Abstract: 984,035. Coiling slivers. T. M. M. (RESEARCH) Ltd. Feb. 11, 1964 [Feb.14, 1963], No.6063/63 Heading D1F.  A textile coiling machine has the structure of the tube wheel so arranged that a cooling airstream induced by a fan 31 or equivalent means is caused to flow through the tube-wheel generally in an axial direction and then substantially parallel to the undersurface of the tube wheel, or vice versa as shown. The tube wheel has one or more apertures 22 in its cover plate, and an annular chamber 23 communicating with a well 26 surrounding the tube wheel. There may be baffles or radial ribs in chamber 23 to ensure radial flow.
Patent GB-307744-A (GB)
Title: Roll carriers for photographic film cameras
IPC: G03B17/30
Filed: 1929-02-25
Abstract: 307,744. Neithold Akt.-Ges., C. March 12, 1928, [Convention date]. Cameras, roll-holding devices for.-A roll carrier consists of two semi-cylindrical portions 1 to embrace the end discs of the film roll, connected by a bar 5 which is hinged to the camera casing at 6. Springy tongues 3 in each cylindrical portion retain the roll in position and apply a uniform braking pressure. The Specification as open to inspection under Sect. 91 (3) (a) also describes the subject-matter of Specification 313,533. This subject-matter does not appear in the Specification as accepted.
Patent GB-381837-A (GB)
Title: Improvements in or relating to capless electric incandescent lamps or discharge tubes
IPC: H01J9/40
Filed: 1932-03-02
Abstract: 381,837. Electric incandescent lamp bulbs. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. March 2, 1932, No. 6319. Convention date, March 3, 1931. [Class 39 (ii).] In a capless electric incandescent lamp or discharge tube 1 the sealed end 7 of the exhausting tube 6 is located in a cavity of the bulb or in a space formed by an extension sealed to the bulb. In the form shown the exhausting tube 6 is located within the stem tube 2 in such a position that it cannot be damaged by shocks or the like. The lower end of the tube 6 is sealed to the pinch 3. Alternatively a collar may be sealed around the edge of the upper portion of the bulb to surround the sealed end of the exhausting tube. The sealing of the exhausting tube may be effected by means of an incandescent wire, or a lens or mirror may be used to concentrate thermal ravs thereon. If the exhaust tube is made partly of metal, or provided with a metal stuffing material or a metal bush, sealing may be effected by high-frequency electric heating.
Patent GB-1216416-A (GB)
Title: Improvements in or relating to seals
IPC: F16J15/54
Filed: 1968-02-08
Abstract: 1,216,416. End face seals. PATELEC-CEM S.p.A. 8 Feb., 1968 [17 Feb., 1967], No. 6319/68. Heading F2B. A seal for a track roll of a tractor comprises a sealing ring 1 of L-shaped section, a bellows 4, interengaging elements 3 on the sealing ring and bellows to prevent relative rotation, a pre-loading spring 11 which acts on the bellows so as to increase the radial force with which, in use, the bellows bears radially inwards against the sealing ring and radially outwards against a housing, and an inflexible support ring 14 disposed inside the bellows. In use, the sealing ring 1 is mounted in its housing for engagement with an opposed static sealing face, the axial load causing the bellows to lock inwardly on to the sealing ring 1 and outwardly against the housing. In modifications, the spring 11 may be embedded in the bellows or the bellows stiffened by metal rings of circular section.
Patent GB-540054-A (GB)
Title: Improvements in method of and apparatus for drying fabric
IPC: D06C3/00
Filed: 1940-04-08
Abstract: 540,054. Expanding pulley gearing. SAMCOE HOLDING CORPORATION. April 8, 1940, No. 6343. Convention date, May 18, 1939. [Class 80 (ii)] [Also in Groups XIII and XVI] Fabric in long lengths is dried by passage over a series of reels while hot air is passed through it, the speed of the reels being automatically adjusted so that the fabric is not subjected to tension as it advances. The fabric passes over a cylinder 11 to the reels, the first of which has the same peripheral speed as the cylinder 11. The reels are driven by a variable speed motor 29 having a flat belt 33 extending over a pulley 34 mounted on a spring-controlled pivoted arm 35. Motion is transmitted from the belt 33 through pulleys 39, 40 to a speedreducing mechanism 41' which drives the reel, and also, through belts 44, 46, the cylinder 11. Each of the subsequent reels is driven by automatically controlled variable speed mechanism. Pulleys 48, 50 are connected together and mounted on a common fixed spindle 49, pulley 50 driving pulley 52 mounted on a spindle 53 which also carries a variable speed pulley 54, Fig. 9. This pulley comprises a member 55 urged by spring 57 towards a co-operating member 56 so that the effective diameter of the groove for the V-belt is varied. Pulley 54 is connected by belt 60 to pulley 61 of a speed-reducing mechanism 63, the output shaft 7 of which carries the reel. The speed control comprises a roller 64 carried by a counter-balanced lever 65 bearing against the fabric between the reels. Any variation in the tension of the fabric rotates the spindle 66 of the lever 65, together with an integral arm 68 carrying bearing 69 for the stub shaft 53. An arm 70 carries counterweight 71 to balance the roller 64. An idle pulley 72 takes up slack in the belt. Any variation in the relative positions of the shafts 62, 53 due to movement of the roller 64 causes a variation in the pitch of the pulley 54 and a change in speed of shaft 62 and therefore of the reel 6 in accordance with the temporary condition of the fabric, so that the fabric is advanced without being subjected to any substantial tension. Specification 530,968, [Group VIII], is referred to.
Patent GB-471723-A (GB)
Title: Variable electric resistance or potentiometer
IPC: H01C10/32
Filed: 1937-03-03
Abstract: 471,723. Variable resistances. STEATIT-MAGNESIA AKT.-GES. March 3, 1937. No. 6377. Convention date, March 5, 1936. [Class 37] In a variable resistance having a circular track over which slides a contact arm driven by a rotary spindle, the contact arm or the member carrying the contact arm is welded to the spindle, preferably by electric spot welding. The Figure shows the actuating spindle c welded to a metal plate d having stops for limiting rotation of the spindle, the contact arm f with a contact g to engage the resistance track (not shown) and a further contact arm h with a contact i for engaging a contact track being secured to an insulating plate e fixed to the plate d. The contact arm or the member carrying it may be welded flat against the end of the spindle c or a collar like member may be provided on the contact or carrying member to be used for welding.
Patent GB-211008-A (GB)
Title: Improvements in extra air inlet or air control valves for internal combustion engines
IPC: F02D9/00
Filed: 1923-03-06
Abstract: 211,008. Mousley, G. A. March 6, 1923. Induction pipes, fittings for.-An extra air inlet device comprises a casing a provided with air inlet apertures a<4>, a spring-loaded manually-operated valve d, a spring-loaded suction-actuated ball valve b, and a nozzle c' adapted to screw into the induction pipe and provided with air outlet apertures c<2>.
Patent GB-522830-A (GB)
Title: Improvements in or relating to resilient motor suspensions
IPC: B61C9/48
Filed: 1939-02-27
Abstract: 522,830. Mounting motors. WESTING- HOUSE ELECTRIC INTERNATIONAL. CO. Feb. 27, 1939, No. 6410. Convention date, Feb. 26, 1938. [Class 79 (iii)] The nose of an axle hung motor in a vehiclo truck frame is supported by spring members disposed so that one counteracts the torque of the motor in one direction and the other counteracts the torque in the other direction and also supports the motor at its nose, the first member being connected to the truck frame and the second member being connected to the motor and operating on the truck frame through an otherwise freely disposed horizontal bar. The motor 10 is hung on the axle 11 and its nose presents spaced lugs 25, 26. A set of springs 22 mounted between a, channel bar 27 and a bar 28 are secured by a bolt 29 to the lug 25, and a set of springs 21 are secured by bolts 24 between projections 19, 20 from a transom 17 of the truck, a bar 32 inserted between the bar 27 and the springs 21 completing the assembly. The weight of the motor and downward torque is balanced by the springs 22, and upward torque by the springs 21. Lugs 33 on the nose of the motor would prevent the motor from falling, in case of fracture of the lug 25, by contacting the bar 28.
Patent GB-1490752-A (GB)
Title: Digital data recording apparatus
IPC: G11B5/09
Filed: 1975-02-17
Abstract: 1490752 Digital magnetic recording INTERNATIONAL BUSINESS MACHINES CORP 17 Feb 1975 [3 Nov 1974] 6556/75 Heading G4C In recording digital data signals on a magnetic medium 7, Fig. 1, e.g. a tape, disc or drum, complementary input data signals V A  and V A  are applied to respective inputs 8, 9 of a pulse shaping circuit and are converted into the waveform shown in Fig. 2E wherein the leading edge of each shaped positive of negative pulse has a controlled finite risetime or falltime T say, the shaped pulses being applied to a write head 1 via driver transistors T10, T11. The risetime or falltime T is optimally adjustable to minimize peak shift distortion in the recording and recovery process. Only the left-hand part of the pulse shaping circuit will be described, the righthand part being identical. When signal Va becomes negative, a transistor T1 conducts and a capacitor C1 is charged via a variable resistor R1, producing a linearly rising leading edge of the pulse at a point 10. Transistor T1 then saturates and the horizontal top of the pulse is produced. When signal Va becomes positive, the signal at point 10 is returned substantially instantaneously to zero by means of a transistor T2 becoming conductive, thus producing a steeply falling trailing edge of the pulse. The pulses from point 10 are applied to driver transistor T10 via further transistors T3, T4. Variation of the time constant of the RC circuit comprising resistor R1 and capacitor C1, which determines the value of the risetime or falltime T, is effected by varying the value of the resistor R1. It is shown that T should be chosen to be d/v, where d is the domain size on the magnetic medium 7 (proportional to the current in the write head 1) and where v is the speed of the magnetic medium 7 relative to the write head 1.