baber/WOPTO huggingface dataset:
Patent GB-233669-A (GB)
IPC: D01F2/04
Filed: 1925-03-23
Abstract: In the manufacture of artificial filaments by the cuprammonium process in which the warm water used as precipitant is renewed so that the ammonia concentration does not exceed 0.05 per cent, the ammonia is recovered from the precipitant by precipitation as magnesium ammonium phosphate.ALSO:Ammonia present in waste liquors resulting from the manufacture of artificial silk by the cuprammonium process is recovered by precipitation as magnesium ammonium phosphate, which may be treated with an amount of sulphuric or other acid equivalent to the ammonia, the ammonia being then recovered, for example, as ammonium sulphate.  Examples of the process are given.ALSO:Ammonia present in waste liquors resulting from the manufacture of artificial silk by the cuprammonium process is recovered by precipitation as magnesium ammonium phosphate.  The liquors may be treated with solutions of magnesium chloride and sodium phosphate, or alternatively, precipitation may be effected by direct addition of an hydrated magnesium hydrogen phosphate, such as the phosphate MgHPO4.7H2O.  The latter compound may be prepared from other magnesium phosphates, such as that obtained by heating magnesium ammonium phosphate, by dissolving them in acid, such as sulphuric acid, and precipitating the desired phosphate by addition of soda, the precipitation being effected either as a separate step or directly in the presence of the waste liquors.  An hydrated magnesium hydrogen phosphate suitable for use in the process may be prepared also by treating the obtained magnesium ammonium phosphate with an amount of sulphuric or other acid equivalent to the ammonia. Examples of the process are given.
Patent GB-451217-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F01M1/10
Filed: 1936-03-16
Abstract: 451,217. Centrifugal separators. SIEMENS APPARATE UND MASCHINEN GES., 4, Askanischer Platz, Berlin. March 16, 1936, No. 7891. Convention date, April 10, 1935. [Class 23] [See also Group XXVII] An internal-combustion engine having a charging-blower is provided with a centrifugal oil-purifier coupled with the blower, whereby the purifier is driven at a higher speed than that of the engine. A centrifugal disc 2 and a fan 1 are keyed on a sleeve 3 which is loosely fitted on a hollow extension 4 of the engine crank-shaft and is driven from the crank-shaft by gears 5, 6, 7, 9. The oil enters by a passage 13, flows to the side 14 of the disc 2 and is centrifuged outwards, returns across the side 15 of the disc, and flows to the lubricating points in the engines. The disc is enclosed in a twopart casing 10, 12 fixed to a fan-housing 11. The impurities collect in an annular space 22 and may be removed by taking off the part 12. The surfaces 14, 15 are preferably rough and smooth respectively.
Patent GB-1108205-A (GB)
Title: Radiant energy analyzer
IPC: G01J3/06
Filed: 1966-02-23
Abstract: 1,108,205. Optical apparatus. BECKMAN INSTRUMENTS Inc. Feb. 23, 1966 [March 1, 1965], No. 7907/66. Heading G2J. Apparatus for use in emission or atomic absorption spectroscopy includes a sampling area SA, a monochromator 25, a detector 28, two arrays of mirrors each mounted so as to direct radiation towards the sample area, and means for moving one array of mirrors relative to the other in order to vary the number of mirrors which lie in a beam path through the sampling area and thus to vary the number of radiation passes through this area. A first array of mirrors 18, 19 is mounted together with a lens 11' on a fixed support 21. The elements 11', 18, 19 are equally spaced by a distance d, and arranged in a common plane. The second array of mirror 23, 24 is arranged together with a lens 14 in a common plane parallel to the first array. These elements are equally spaced by the distance d and are mounted on a support 22 displaceable in the direction of arrow 27. The mirrors 18, 19, 23, 24 have the same focal length and provide no substantial magnification. Also mounted on the support 22 are a chopper 26 and a source of radiation 16 which directs a radiation beam on to the lens 14, with the support 22 in the position shown in Fig. 2. The beam then passes to the mirror 19, the mirror 23 and finally the lens 11' thus traversing the sample area three times. When the support 22 is moved up by the distance d, five radiation passes through the sample area occur. Radiation from the lens 11' is received by the monochromater 25 which passes the selected wavelength to the detector 28. Mechanism for moving the support 22 is described. In a second embodiment (Fig. 5) the two arrays are disposed on a circle which encloses the sample area, and the variation in the number of radiation passes is provided by movement of the support 22 around the circle.
Patent GB-526278-A (GB)
Title: Improvements in instruments for internal massage
IPC: A61H21/00
Filed: 1939-03-11
Abstract: 526,278. Instrument for interna massage. GARAS, F. March 11 1939, No. 7914. [Class 81 (ii)] An instrument for internal massage of the seminal vesicle and prostrate comprises a hollow stem F preferably curved and widened at the end K and having passages for the circulation of fluid through the greater part of its length. Inlet and outlet nipples M, N, for the fluid are provided in the head of the instrument, which terminates in a knob or handle G.
Patent GB-1194773-A (GB)
Title: Improved Reader Printer
IPC: G03B21/11
Filed: 1968-02-19
Abstract: 1,194,773. Control systems for printing apparatus; control of several motors. ITEK CORP. 19 Feb., 1968 [8 March, 1967], No. 7921/68. Headings H2H and H2J. [Also in Division G2] A reader printer includes a lamp for illuminating a gate at a certain intensity during viewing and at a greater intensity during printing. The reader printer described is mechanically constructed in accordance with U.S. Patent 3,240,115 and includes a film transparency gate, a projection system incorporating a movable mirror, a viewing screen, and a printing system. Initially, the projection lamp 7 is energized through a rheostat 8 which reduces the lamp intensity to a level suitable for viewing a projected image on the screen. In order to make a print, the operator presses a button 14, which starts a motor 16 to drive the movable mirror and also a timer 18 which controls operations during the subsequent printing cycle by means of a cam which actuates micro-switches (not shown). First, the lamp 7 is extinguished by opening contact S1B, and the mirror is driven to the printing position. Next, a switch S3 is operated to energize a relay L, so opening contacts L1 and stopping the motor 16. A switch S2A is now closed, and the lamp 7 is re-energized through a rheostat 26 which is adjusted so that the lamp runs at or near its full rated voltage. Exposure now begins, and continues until, at a time determined by an exposure timer 31, contacts 11 are opened and the lamp 7 is again de-energized. The motor 16 is started again by closing contacts 33, and the mirror is returned to the viewing position. When the cam of the timer 18 completes its revolution, switch S3 is again operated to start a plate drive motor 37. This causes rollers 38 to move the exposed plate to a processing station. A cam 41, driven by the motor 37, stops the drive at the appropriate time by raising a switch 42. This action also closes a switch L17 which was opened when the plate drive motor 37 was started so that the operator could not double-expose the plate.
Patent GB-769204-A (GB)
Title: Improvements in and relating to loudspeakers
IPC: H04R1/28
Filed: 1954-03-18
Abstract: 769,204. Loud-speakers. WATTS, C. E. March 1, 1955 [March 18, 1954], No. 7966/54. Class 40 (4). [Also in Group XL (c)] To avoid undesirable colouration and yet avoid excessive damping, one side of the diaphragm of a loud-speaker is loaded by a chamber which has a cross-section decreasing in a direction away from the diaphragm. Parallel facing surfaces of substantial size which might produce unwanted resonance are also avoided. The frequency band is split up to feed a highfrequency speaker (not shown) which may be placed anywhere on the cabinet, a mid-frequency speaker 11, and a bass speaker 10. The bass speaker 10 feeds a chamber made up of sections 18, 22, 19 leading to a curved slot 25, the sections 18, 19 being semicircular in cross-section. The section 22 may be of uniform or decreasing cross-section or may be modified as shown in Fig. 4 by the addition below the panel 20 of a sand-filled space. The mid-frequency speaker 11 feeds a chamber 24 leading to a curved slot 27. The length of the bass chamber 18, 22, 19 is of such a length that it resonates at a frequency below the lowest frequency of importance produced by the loud-speaker. The walls of the bass chamber are made of hardboard with a resonance above the highest frequency produced by the bass speaker. An amplifier or radio chassis is contained in the space 13. The upper end of the cabinet encloses the units 10, 11 in any convenient way.
Patent GB-842137-A (GB)
Title: Safety device, especially for coal-cutting machines
IPC: E21C35/04
Filed: 1959-03-09
Abstract: 842,137. Mineral-mining machines. SOC. D'APPLICATIONS GENERALES D'ELECTRICITE ET DE MECANIQUE S.A.G.E.M. March 9, 1959 [March 10, 19581, No. 8027/59. Class 68(1). A mineral-mining machine such as described in Specification 809,181, which is referred to, in which the hydraulic motors of the machine are supplied with liquid under pressure from a variable output pump driven by an electric motor is provided with a safety device for prevention of overload on the electric motor. The safety device consists of a plunger 15 that is moved, when overload occurs on the electric motor, against a spring 18 by a solenoid connected in the motor circuit. The plunger 15 acts on a pivoted lever 16 that pushes a channelled control piston 17 against the spring so that liquid under pressure from the hydraulic system acts through ports and passages 21, 20, 23, 19, 24 on a further control piston 26. The piston 26 moves against a spring 30 so that liquid under pressure from the hydraulic system passes through ports and passages 27, 28, 29 to a jack to operate the jack which moves control means to reduce the output of the pump and remove the overload on the electric motor.
Patent GB-526333-A (GB)
Title: An improvement in feeding bottles
IPC: A61J11/00
Filed: 1939-03-13
Abstract: 526,333. Feeding bottles &c. THOM, H. March 13, 1939, No. 8076. Convention date, March 22, 1938 [Class 125 (i)] A protective covering 4 for a teat 3 is of tubular form of glass or other readily cleanable material and grips the teat at 7 where it is expanded over the bottle mouth. The protector may rest on a flange 8, if there be one, or may be pressed down past the flange to engage the bottleneck so that the open end of the protective covering is enclosed in a sealed manner.
Patent GB-280780-A (GB)
Title: Improvements in or relating to bathing suits or costumes
IPC: A41D7/00
Filed: 1927-03-24
Abstract: 280,780. McDowell, H. March 24, 1927. Buoyant swimming and bathing dresses.-To enable a bathing costume to support the wearer when immersed, it is formed with front and back portions A, B, Fig. 3, of double calico or other material having rows of cylindrical corks sewn between the sheets of the material, the arrangement allowing the wearer freedom of movement. Shoulder straps E, F and side straps G, H, I, J connect the portions A, B which are connected at their lower ends by a crutch portion D. As shown, the straps F, I, J are detachable and adjustable to facilitate attachment of the costume to the wearer but the straps need not be detachable if all the straps are elastic. In a modification, a front or back portion A, Fig. 4, is provided with side flaps K, L, N, O and hip flaps M, P, the flaps K, L having adjustable clips by which they may be secured. to the flap N, 0 and the hip flaps adjustable clips M', P' for attachment to the bottom of the portion A.
Patent GB-871871-A (GB)
Title: A motorized drive for swinging bridges in mine cage decking plants
IPC: B66B17/18
Filed: 1958-03-13
Abstract: 871,871. Transferring vehicles to pit cages. MONNINGHOFF, S., [trading as MASCHINENFABRIK MONNINGHOFF]. March 13, 1958 [Aug. 3, 1957], No. 8116/58. Class 78 (4). [Also in Group X] A drive for the bridge 15 of a mine cage decking apparatus comprises an electric squirrel cage induction motor 10, capable of sustaining 100% slip conditions, driving a pinion 12 through a chain 11, the pinion 12 meshing with a toothed sector 13 mounted on the pivot shaft 14 of the bridge. A counterweight 16 returns the bridge to a raised position when the motor is switched off.
Patent GB-1096641-A (GB)
Title: Improvements in and relating to axial thrust bearings
IPC: F16C33/72
Filed: 1965-02-25
Abstract: 1,096,641. Bearings. PHILIPS GLOEILAMPENFABRIEKEN N.V. Feb. 25, 1965 [Feb. 29, 1964], No. 8155/65. Heading F2A. In a fluid thrust bearing, one of the thrust bearing surfaces has spiral grooves 3 therein (as shown in Fig. 2) for generating pressure and an annular member 7, 8, Fig. 1, is provided to resist radial movement of a shaft 4 supported by the bearing; the member 7, 8 being separated from the shaft 4 by a clearance 9 and being urged by the pressurized fluid against a seal 11 which is mounted in a recess in a portion 10 of a supporting member 2. In use, the fluid, pressurized by the spiral grooves 3, flows through an annular gap 5 formed between the shaft 4 and the supporting member 2 and passes to a chamber 6 in the supporting member 2. The chamber 6 is connected to an annular recess 6a in the supporting member 2 and the seal 11 prevents escape of fluid from the recess 6a so that the fluid can only leak through the clearance 9.
Patent GB-1001142-A (GB)
Title: Improvements in or relating to billiard tables
Inventor: GRIFFITHS JAMES SINCLAIR
IPC: A63D15/00
Filed: 1962-03-03
Abstract: 1,001,142. Table levelling devices. N. CLARE, [trading as E. A. CLARE & SON]. Feb. 25, 1963 [March 3, 1962], No. 8307/62. Heading A4H. A frame for a billiard table comprises side rails 28 mounted on supports 10, and incorporates a plurality of levelling devices for adjusting the side rails relative to the supports. Each support 10 comprises a hollow box-like structure with faces 12, 14, 16, 18, 20, having its two end faces 16, 18 abutting against side posts 22, 24 respectively, the side posts all extending above their corresponding supports 10 and supporting the side rails 28 on the inner faces of their extended portions. The side rails are adjustably supported on each side post by means of two bolts 38 passing through a slot in the side post and bores in the rail, and are further adjustably supported on end faces 16 or 18 respectively of the support structures 10 by means of threaded bolts 30 engaging blind, threaded bores in the said end faces and abutting against the lower edge of the rail. Locking bolts 58 and 62 hold the levelling devices in their adjusted positions. The outer faces of the two end supports 10 are extended upwards at 64, engaging slots in the side rails, in order to mask the levelling devices.
Patent GB-691229-A (GB)
Title: Improvements in or relating to slack adjusters for brakes
IPC: F16D65/50
Filed: 1951-04-10
Abstract: 691,229. Brake slack adjusters. BENDIXWESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. April 10, 1951 [April 19, 1950], No. 8334/51. Class 103 (i). In a slack adjuster for brake rigging of the type in which the angular position of an arm 16 on a shaft is adjusted by means of a worm 20 and worm wheel 12, a spring-loaded detent member 30 that fixes the worm by engagement with notches 26 on its shaft, also acts to positively lock the shaft when the nut 38 is rotated so that the pin 44 moves in a slot 40 and the spring 32 is compressed solid.
Patent GB-403610-A (GB)
Title: A method of starting asynchronous machines and also synchronous machines which run asynchronously by means of their damper winding during the starting period, by means of controlled rectifiers
IPC: H02P1/30
Filed: 1932-03-21
Abstract: 403,610. Control of A.C. motors. SIEMENS - SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. March 21, 1932, No. 8338. Void [Abridged as open to inspection under Sect. 91 of the Acts, April 1, 1932]. [Class 38 (iii).] At starting an asynchronous motor, or a synchronous motor which may be started as an asynchronous motor, is supplied from "rectifiers " controlled to increase the frequency from a low value to the working value. The voltage applied to the motor is also varied during starting, but inversely in relation to the frequency. The regulator for varying the frequency may be combined with a switch for automatically switching off the "rectifiers" when a certain frequency is attained. The motor may be remotely controlled and may be started as a two-phase motor, or as a single-phase splitphase motor.
Patent GB-805365-A (GB)
Title: Gasket and joint for sealing fluid pressure and radio frequency electrical energy
IPC: F16J15/10
Filed: 1955-03-22
Abstract: 805,365. Joint-making packing. AIRTRON Inc. March 22, 1955 [March 22, 1954], No. 8356/55. Class 122 (3). [Also in Group XL (b)] A gasket for use in a joint in a transmission line carrying both electrical energy and fluid pressure comprises a rubber ring 11 partly disposed within the channel 16 of a radially-opening channel section resilient sheet metal shield ring 12 that axially extends at its edges beyond the rubber ring. As applied to a joint between two microwave guide elements 20, 21, Fig. 2, the gasket is located in a groove 27 in one of the joint flanges 22, 23 from which it protrudes so that when the flanges are pulled together by bolts 26 the gasket is compressed in the groove, the rubber ring and the shield ring effecting a fluid seal and an electrical seal respectively. The shield ring may be arcuate in cross-section and may be applied to either the inner or the outer sides of the rubber ring. The gasket may be polygonal in shape.
Patent GB-1536541-A (GB)
Title: Viscous insulating liquid
IPC: H01B3/22
Filed: 1975-02-28
Abstract: 1536541 Electrical connectors STANDARD TELEPHONES & CABLES Ltd 24 Feb 1976 [28 Feb 1975] 8406/75 Heading H2E [Also in Division C5] An electrically insulating grease comprising liquid paraffin, natural wax and polyisobutylene is used to fill the chamber of an underwater connector described in Specification 1,379,525.
Patent GB-1131606-A (GB)
Title: Resinous compositions and plasticisers therefor
Inventor: BIGGINS ROBERT
IPC: C08G59/54
Filed: 1966-02-25
Abstract: 1,131,606. Epoxy resin curing agent. BRITISH OXYGEN CHEMICALS Ltd. 24 Feb., 1967 [25 Feb., 1966], No. 8444/66. Headings C3B and C3R. [Also in Division C5] An epoxy resin composition is prepared by reacting a curing agent comprising the reaction product of tall oil pitch and a polyfunctional amine with an epoxy resin. The pitch should have an acid number higher than 10, and the amine is preferably an aliphatic polyamine, although amino alcohols, e.g. ethanolamine may be used. Ratios by weight of pitch to polyamine are in the range 25 : 1 to 1 : 1, and the reaction of pitch and amine should be carried out at a temperature below 250‹ C. Solvents, e.g. aromatic-rich hydrocarbons, may be included in the reaction, and may be left in the reaction product. Unreacted amine is preferably removed.
Patent GB-526457-A (GB)
Title: Improvements relating to rotary pumps for oil or other liquids
IPC: F04C2/14
Filed: 1939-03-16
Abstract: 526,457. Rotary pumps. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and LEECH, K. H. March 16,1939, No. 8475. [Class 110 (ii)] A gear wheel pump has a single inlet at the mid point of the periphery of the lower wheel and the outlets 14, 15 lead to opposed non-return valves 17 pressed on to their seats by one spring 20. A relief byepass 24 is controlled by a ballvalve 23. The pump is attached to the .casing of an aircompressor and delivers oil to the bearings thereof when rotated in either direction.
Patent GB-1221417-A (GB)
Title: An improvement in or relating to cement guns
Inventor: MILLAR GERARD
IPC: E04F21/12
Filed: 1967-02-22
Abstract: 1,221,417. Pneumatic conveyers. STEETLEY CHAMBERS Ltd. 22 Feb., 1968 [22 Feb., 1967], No. 8482/67. Heading B8A. [Also in Division E1] A cement gun with pressure vessels 10, 11 for cementitious material, as described and claimed in the co-pending Specification 1,221,416 is operated by valves 41 and 42 near nozzle 47, which valves control the flow of air through conduits 43 and 44, respectively connected to the air supply line for the valve assembly 25 and to a regulator valve 45 on the main supply line 46. Opening the valve 42 allows compressed air which has leaked through a constrictor valve 50 to escape to atmosphere, relieving pressure in a chamber of the valve 45 which has a flexible diaphragm forming one wall, and allowing the valve 45 to open fully, and pressure to increase in vessels 10 and 11, spring valve 41 allows air to escape from chamber 35 (Fig. 3, not shown) of valve assembly 25, and valve 31 to be lifted by the excess of pressure in vessel 10 over that in chamber 35. Water is introduced to the nozzle 47 through a valve 49.
Patent GB-785418-A (GB)
Title: Improvements in or relating to magnetic separators
Inventor: DAVIS CHARLES WILLIAM VERITY
IPC: B03C1/033
Filed: 1956-03-19
Abstract: 785.418. Magnetic separators. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 19. 1956, No. 8492/56. Class 117  A filter element used in a magnetic separator for fluid comprises a plate of ferro-magnetic material formed with a plurality of rows of slots and provided along at least one edge of each slot with a wall portion extending in a direction perpendicular to the plane of the filter element. As shown, a magnetic separator comprises a hollow non-magnetic casing 1 which carries a plurality of filter elements 5 each consisting of a disc-shaped plate which may be of soft iron, having formed therein a central aperture 6 to accommodate the casing 1, together with several circular, concentric rows of arcuate slots 7, each slot being provided along its inner edge with a wall 8 which is formed by material which has been pressed upward out of the surface of the plate when forming the slot. Each element has spacing pins 9 of non-magnetic material, and the casing 1 houses a permanent magnet 2 or an assembly composed of more than one magnet. A central bolt 3 also passes through two pole pieces 4 and holds the complete assembly together. In a modification (Fig. 3, not shown) the slots of the inner row are wider than those of the other rows thus providing walls which extend further than the walls of the other slots and act as spacers between adjacent elements. In Fig. 4. each element has a rim portion 10 which is formed from material from the centre of the plate and which acts as a spacer. The portion 10 may be formed as a continuous wall or as a number of separate portions. In a further modification, both arcuate edges of each slot may have walls. In operation, the separator is enclosed in a casing having an inlet and outlet for fluid.
Patent GB-1435011-A (GB)
Title: Criping clips
IPC: H01R4/24
Filed: 1973-02-21
Abstract: 1435011 Sleeve coupling POST OFFICE 5 Feb 1974 [21 Feb 1973] 8528/73 Heading H2E A crimping clip for connecting two or more electrical conductors comprises an insulating jacket of open end trough shape, at least one wall having a longitudinal zone between the top and bottom which is more susceptible to bending during crimping than the rest of the wall. This may be provided by a groove 12 in the wall 8 or a thickened possibly rounded top edge to concentrate stress immediately below it, Figs. 7, 8, 9 (not shown), or a local weakening. Preferably the insulating jacket has a trough shaped electrically conducting liner 6 which may have projections 7 to engage the conductors. Between the jacket and liner a plastically deformable member 5 may be fitted.