baber/WOPTO huggingface dataset:
Patent GB-625187-A (GB)
Title: The regeneration and like treatment of cation-exchange materials
IPC: B01J49/00
Filed: 1947-02-28
Abstract: Cation-exchange material (e.g. sulphonated coal) of the kind capable of exchanging hydrogen ions and containing both strong acid and weak acid groups is treated with sodium bisulphate and may be used in processes for the recovery of useful cations, e.g. by concentration. According to the Provisional Specification the material may be treated with a weak acid or a salt which functions as a weak acid. Acids preferred are those having a dissociation constant less than about 10-1, e.g. citric acid or acetic acid, avoiding those acids (e.g. oxalic) which give an insoluble salt with the cations (e.g. calcium) in the liquid to be treated. The treatment may be employed for any cation-exchange material.ALSO:Cation-exchanger material of the kind capable of exchanging hydrogen ions and containing both strong-acid and weak-acid groups is treated with sodium bisulphate. In an example, 0.25 cubic feet of a sulphonated coal cation-exchanger material charged with calcium ions was regenerated with 360 grams sodium bisulphate as a 3 per cent aqueous solution.  The material was then fed with London tap water until exhausted, giving an output of 150 gallons with a residual bicarbonate alkalinity of 2 grains per gallon as CaCO3.  During the working run, cations associated with weakly-acidic anions are exchanged for hydrogen ions, while cations associated with strongly-acidic anions are exchanged for sodium ions. Accordingly, some of the permanent hardness is removed with the temporary hardness in treating water.  The temporary hardness may, however, be preferentially removed.  The effluent does not contain free acid.  The material may be used in processes for the recovery of useful cations, e.g. by concentration.  According to the Provisional Specification, the material may be treated with a weak acid or a salt which functions as a weak acid.  Acids preferred are those having a dissociation constant less than about 10-1, e.g. citric acid or acetic acid, avoiding those acids, (e.g. oxalic), which give an insoluble salt with the cations, (e.g. calcium), in the liquid to be treated.  The treatment may be employed for any cation-exchange material.
Patent GB-311484-A (GB)
Title: Improvements in and relating to healds for looms for weaving
IPC: D03C9/06
Filed: 1928-02-27
Abstract: 311,484. Rawnsley, L., and Rawnsley, H. Feb. 27, 1928. Healds.-The mails M are mounted on rods R floatingly supported by loops L' from slidable bars B held by loops L to the top and bottom frame members F which are extended at F<1> to protect the ends of the bars and rods where they extend through the side frames and are secured by split pins P, P<x>. To remove the mails, one or both bars are slid through the loops L till the latter enter notches B<2>, thereby allowing the rod R to approach the bar B, so that it may be released from the loops L<1>. In some cases, the rods may be released by turning them in their loops.
Patent GB-588956-A (GB)
Title: Improvements in or relating to machines for bending pit arches and the like
IPC: B21D7/022
Filed: 1945-03-12
Abstract: 588,956. Angular bending. MARCH, T. E. March 12, 1945, No. 6118. [Class 83 (iv)] [Also in Group XXIII] In a duplex machine for bending pit arches, sweep arms 1, 2 bend, against formers 17, arches 16 anchored by clamps 15 to a baseplate. The arms 1, 2 are oscillated by fluid cylinders 12, 13 with rams 10 abutting a rackrod 9. Clutches between the rack and the arms 1, 2 allow the benders to be made inoperative during setting up. Rotary saws 18 are projected through slots 6a in the base-plate by toggles operated by cables from shafts 4 for severing the crop ends.
Patent GB-710025-A (GB)
Title: Improvements in and relating to overload protecting systems
IPC: H02H3/08
Filed: 1952-03-10
Abstract: 710,025. Protective cut-out systems. BRITISH THOMSON-HOUSTON CO., Ltd. March 10, 1952 [March 12, 1951], No. 6163/52. Class 38(5) A load 1 which may be a motor using A.C. of more than 60 cycles, e.g. 400 cycles, is protected against overload by a saturable reactor 13 having a D.C. winding 13a energized from an A.C. source 6 over a voltage dividing circuit including rectifiers 11, 12, variable resistors 7, 8 and negative coefficient resistors 4, 5, around which are arranged coils 2a, 2b in the motor circuit 2. The reactor 13 also has two windings 16, 17 respectively connected in series with rectifiers 18, 19 in two adjacent arms of a rectifier bridge, which also comprises rectifiers 20, 21 and is fed from an A.C. source 22. The output termirials of the bridge are connected to a coil 30 over a push-button 29, so that when the latter is closed the reactor core, which is in two parts 27, 28, becomes saturated due to the current in windings 16, 17, and coil 30 remains energized and a switch 3 remains closed. If a predetermined overload occurs, coil 13a, and a positive feed-back winding 24 connected to the bridge output terminals, are sufficiently energized in the opposite sense to coils 16, 17, to unsaturate the cores and so reduce the bridge output and open switch 3.
Patent GB-136856-A (GB)
Title: New or Improved Clinometer Apparatus for Aeroplanes and other Aircraft.
Inventor: DAVIES ROLAND LENNOX
IPC: G01C9/14
Filed: 1918-04-11
Abstract: 136,856. Davies, R. L. April 11, 1918. Clinometers for use on aircraft or submarines have a weighted sphere 2 mounted on ball bearings 3 within a spherical casing 1, which is fixed to the aircraft &c. The casing is formed with an opening covered by a transparent plate 6 on which is marked a central horizontal line 7, the centre of which is marked by a line 8. The sphere 2 is marked with a central horizontal line 9 and with further horizontal graduations 10. A spring-urged plunger 11 may be provided, by which the sphere 2 can be held against rotation when not in use.
Patent GB-1443505-A (GB)
Title: Rotors for a screw rotor fluid machine
IPC: F01C1/16
Filed: 1975-02-13
Abstract: 1443505 Rotary positive-displacement fluidmachines ATLAS COPCO AB 13 Feb 1975 [24 June 1974] 6185/75 Heading F1F Male and female rotors 2, 3 for a meshing-screw compressor, motor or pump have pitch circles 12, 13 and lands 28, 37 with profiles comprising a radial straight line 22-23 and a curve 32-33 generated by a point 24 in the profile of the male rotor land. In the embodiment shown the profile of the land 28 also comprises a curve 21-22 generated by a point 31 in the profile of the female rotor land, a curve 23-24 generated by the point 32, an arc of a circle 24-25 having its centre at the pitch point 15, a curve 25-26 generated by a straight line 34- 35 in the profile of the female rotor land, and an arc of a circle 26-27 centred on the pitch circle 12. The profile of the land 37 in the illustrated embodiment further comprises a line 31-32 generated by the line 22-23, an arc of a circle 33-34 centred at the point 15, and an arc of a circle 35-36 having its centre on the pitch circle 13. It is indicated that with these profiles the rotors operate satisfactorily with or without synchronizing gears. Each land of the female rotor may have a sealing ridge (39), Fig. 6 (not shown), recesses (19) to accommodate this ridge being formed between the male rotor lands. The profiles of the male and female rotor lands in the regions of the points 24 and 32 may be rounded convexly, Fig. 7 (not shown).
Patent GB-1328775-A (GB)
Title: Adjustable support for a shower head
IPC: E03C1/06
Filed: 1972-02-10
Abstract: 1328775 Shower-head support; brackets R CHAMPION 10 Feb 1972 [7 Jan 1972] 6250/72 Headings A4B A4N An adjustable support for a shower-head 15 comprises a tube 1 having a longitudinal slot, a helical element 6 rotatably mounted within the tube, a knob 7 for rotating the spiral element, a slider 5 co-operating with the element and having a portion engaging in the longitudinal slot whereby rotation of the element effects translation of the slider along the tube, and a sleeve 8 arranged to move with the slider outside of the tube. The tube is fixed to a vertical wall 2 by means of horizontal end pieces 3, 3<SP>1</SP> which can slide with a force fit into seats 4, 4<SP>1</SP> attached to the wall, thus allowing the tube to wall distance to be adjusted. The slider 5 is provided with longitudinal slots or grooves engaging the edges of the tube slot,the slider being further provided with a spiral slot or groove to accommodate the helical element formed by a rigid wire of large pitch. An outer sleeve 10, fitted over sleeve 8 is preferably of plastics material and is also provided with a slot. Sleeve 10 is able to rotate around sleeve 8 and is held between a shoulder 11 of sleeve 8 and a resilient clip 12. The shower-head can rotate around a lug 13 and screw 14 mounted on sleeve 10. The knob 7 comprises an extension 16 with a circular groove 17 against which a circular flange 19 of a threaded member 18 may be screwed by turning knob 20 in the corresponding direction, the flange thus acting as a brake against rotational and translational motion of the shower-head.
Patent GB-193289-A (GB)
Title: Improvements in connection with dumbturners for sugar-cane mills
IPC: C13B10/06
Filed: 1922-03-03
Abstract: 193,289. McNeil, C. March 3, 1922. Roller mills. - A dumb turner for sugarcane mills comprises a carrying-bar adjustably held as usual by wedges acting between parts on the bar and projections on the. mill housings, and a dumbturner plate separate from the bar with means for separately adjusting the plate relatively to the rolls irrespective of the adjustment of the bar and means for holding the plate on the upper surface of the bar. As shown, the dumbturner plate A extends laterally beyond the usual flange B on the upper roll B<1> of the mill, and the flange extends into a groove A<1> in the upper surface of the plate. The under surface of the plate is inclined from the front upwards towards the rear and rests on the in clined portion C on the upper surface of the carrying-bar C<1>. Transverse dovetailed ribs A<2> on the under side of the plate engage in slots C<2> in the top of the bar. A wedge face A<3> oppositely inclined to the underside of the plate is formed on the upper surface at each end of the plate, and inclined wedges D are placed between the faces A<3> and projections D<1> on the inner faces of the housings. The wedges are provided at their forward sides with rods D<2> which extend out to the front of the mill where they pass through lugs D<3> and are fitted with nuts D'. Rods E extend from the rear of the plate A at each end to lugs E<1> towards the rear of the hous. ings where they are provided with adjusting-nuts E<2>. The bar C<1> is adjustable as usual by wedges G carried by adjusting-bolts G<1> which pass through lugs G<3> on the inner face of the housing. In a modification, the dumbturner plate is held down on the upper part of the carrying-bar by screwed rods tapped into the underside of the plate and extending through slots in the bar.
Patent GB-402289-A (GB)
Title: Improvements in or relating to multiple-chamber grinding mills
IPC: B02C17/07
Filed: 1933-03-01
Abstract: 402,289. Ball mills. KRUPP GRUSONWERK AKT.-GES., F., Buckau, Magdeburg, Germany. March 1, 1933, Nos. 6304 and 6305. Convention dates, March 1, 1932 and Feb. 8, 1933. [Class 59.] In a ball mill in which grinding chambers are arranged eccentrically about a common axis of rotation, the impact surface D<1>, Fig. 2, which may be flat or concave is so positioned that the material in falling strikes the surface approximately normal thereto. The surface D<1> may lie in a plane tangential to a co-axial tube C through which the air and feed enter the mill. The surface D<1> may be perforated to form a sieve, the size of the perforations decreasing from one chamber to the other. The feed or discharge or both may take place through the end walls. Coarse disintegration of material fed into an axial cylinder 2, Fig. 3, is effected by rods 5 arranged in segmental recesses in spiders 4 and the fine material passes into a lifting chamber 7, through a perforated end wall 6, for transmission through perforations 16 into a chamber containing balls 10. The perforations 16 are protected by a ledge 17, Fig. 5, which also forms a platform from which the balls are discharged normally onto the impact surface 20. Material from the ball mill is discharged through a perforated end plate 9 and is picked up by an axial air blast and conveyed through an outlet 13. A part of this air blast enters with the feed through orifices 3 and passes through the perforated plates 6, 16 and 9 and leaves with the finely ground material through the discharge orifice 13. The chambers in the spider 4 and in the ball mill are staggered in relation to one another in order to effect a balance in the mill. In a modification a chamber is formed between the rod and ball mill in which the material may be mixed or cooled before entering the ball mill. Holes are formed in the casing for the removal of the rods or balls when required.
Patent GB-1319410-A (GB)
Title: Apparatus and method for use in playing games on a cathode ray tube
IPC: G09B19/22
Filed: 1970-05-22
Abstract: 1319410 Cathode-ray tube circuits SANDERS ASSOCIATES Inc 22 May 1970 [27 May 1969] 6324/73 Divided out of 1318051 Heading H4T The description is identical with that of Specification 1,318,051 the claims being directed to apparatus producing signals controlling the display, on a cathode-ray tube, of symbols the positions of which may be changed by manually operable means, the apparatus including means responsive to "coincidence" of two symbols (as viewed on the tube screen) for automatically imparting a distinctive motion to one of the two symbols.
Patent GB-828439-A (GB)
Title: Improvements in or relating to electric cut-outs
IPC: H01H85/20
Filed: 1956-03-01
Abstract: 828,439. Cut-outs. WARD & GOLDSTONE Ltd., and HOLT, H. Feb. 28, 1957 [March 1, 1956], No. 6410/56. Class 38 (1). A cartridge fuse holder comprises a body A and a cap B, connected together by a bayonet joint the fuse C being housed in the body A and its end caps P contacting contacts N connected to leads E, one at least of which is resiliently biased by a spring J. It is stated in the Provisional Specification that the cap may have a spigot to fit into the body, and that the spigot is separate from the cap and constituted by a metal stamping of C-section having tongues which engage the inner surface of the cap. The spigot may also be integral with the cap and the cap and body are connected by a bayonet-joint in either case.
Patent GB-340448-A (GB)
Title: Improvements relating to distributive joints or terminals of multiple conductor electric cables
IPC: H02G15/06
Filed: 1930-02-28
Abstract: 340,448. Cables; insulators. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Ohio Brass Co. ; Mansfield, Ohio, U.S.A.) Feb. 28, 1930, No. 6662. [Class 36.] Means for protecting the insulation of a multiple c o nductor electric cable and for preventing flash-over at the end of the outer metallic sheath comprises a n insulating distributing block having a main opening for the cable core and branch openings for the separated conductors, the end of the block surrounding the main opening being tapered, covered with conductive material, and adapted to fit against the end of the metal sheath of the cable. In the construction shown, separate conductors 11 of a multiple conductor cable are covered by insulation 12. The cable core with insulation 13 is covered by a lead sheath 14. At the terminal, the sheath 14 is stripped and a collar 15 is slipped over the sheath 14 which is then bent up with a flange 16. A metal shell 17 is then clamped to the sheath 14 by bolts 18. The insulation 13 is stripped to a point 19, and terminal bolts 20 are attached to the separated conductors. A cover plate 22 is bolted to the metal shell 17. Terminal bushings 23, having metallized surfaces 26 and formed with attaching flanges 24, are passed through apertures in the plate 22 and are clamped by bolts 25. The tapered ends of the bushings 23 fit in a branch block 21. After the bushings 23 are in position, oil may be poured in to fill the interior of the device by removing plugs 27, 28. A screened hole 29 is provided to facilitate introduction of the oil, the outside of the hole being metallized to prevent electric discharge. In a modified construction, the terminal bushings fit annular grooves in the branch block so as to give a longer leakage path in the joint.
Patent GB-385791-A (GB)
Title: Improvements relating to machines for grinding splined shafts, gear teeth and the like
IPC: B24B53/085
Filed: 1932-03-05
Abstract: 385,791. Grinding. GEAR GRINDING CO., Ltd. and SNARRY, J. W., Anne Road, Handsworth, Birmingham. March 5, 1932, No. 6719. [Class 60.] Trueing rotating tools.-A trueing-device for the wheel of a machine for grinding splined shafts, gears, &c., comprises a pair of tools for trueing the side faces mounted on arms on inclined spindles which are rocked through levers by a reciprocating cross-bar actuated by a cam on the spindle of the tool for trimming the periphery. The wheel r is trued on its periphery by a tool c mounted on a spindle b which is oscillated by a handle d. Tools l for the side faces are carried on arms k on spindles j which are oscillated to move the tools across the faces of the wheel by a cam e on the spindle b engaging a slidable member g in turn engaging a rod o which carries a cross-bar n adapted to rock levers m on the shafts j. The member i supporting the tools l and their operating mechanism is removable, and may be replaced by others having the spindles arranged at different angles.
Patent GB-641085-A (GB)
Title: Improvements in or relating to pipe connections
IPC: F16L17/03
Filed: 1947-03-11
Abstract: 641,085. Pipe joints. ADLAM & SONS. Ltd., G., and FRIENDSHIP, K F M. March 11. 1947, No. 6752. [Class 99(i)] One end of a pipe 3 is fitted into a counterbore 4 in a sleeve 1 provided with a bore 2 equa to the internal dia meter of the pipe, the depth of the counterbore exceeding that of a counterbore in a similar fitting at the other end of the pipe whereby the pipe can be slid axially into the deeper counterbore to allow its other end to be removed from its fitting after which the pipe can be moved in the opposite direction to free the pipe completely. A sealing member 5 of the type pressed against the pipe 3 by fluid passing through the pipe is provided, a flange 6 being gripped between the end of socket and a clamping-nut 8; alternatively, the outer face of an end of the pipe 3 has annular grooves to receive rings similar to piston rings, fluid passing through apertures in the pipe and forcing the rings against the inside jaw of the socket.
Patent GB-1412331-A (GB)
Title: Vented hydraulic coupling
IPC: F16D33/10
Filed: 1973-02-12
Abstract: 1412331 Hydrodynamic coupling ECLIPSE CONSULTANTS Ltd 12 Feb 1973 [11 Feb 1972] 6767/73 Heading F2W In a hydrodynamic coupling the pump element, mounted on a hub 20, driven from a flywheel 11 and carrying vanes 19 has a vent passage 54 having its inlet disposed in a region of minimum fluid circulation in the working chamber and an outlet including a centrifugally controlled valve 55a open at or above the idling speed of the engine and closed below this speed. This vent tube prevents excessive pressure build-up in the coupling when the engine idles with the turbine stalled. The pump is also provided with a reservoir defined by walls 25, 26 into which the fluid from the coupling flows upon depression of a pedal 46 which moves a hub 32 to move a member 34 and open a valve formed between the member 34 (a port 34a) and a member 30 so that fluid flows through orifice 30b into the reservoir. A scoop tube 37 provided to return the fluid from the reservoir does so via a further valve formed between the slidable hub 32 and a hub 28, which valve is closed by depression of the pedal 46. A further reservoir in the pump, defined by walls 15, 16, 17 and 18 receives fluid from the working chamber via an opening 57 and fluid is returned via an opening 56, this occurring only when the vortex flow in the working chamber breaks down due to stalling of the turbine 53 and allowing, due to the reduced amount of fluid in the coupling, the torque absorbed from the engine to be reduced and the engine to run at the speed at which it produces maximum torque. A further vent passage may be provided in the turbine, or the vent passage may be provided only in the turbine.
Patent GB-139030-A (GB)
Title: Improvements relating to the driving mechanism of talking machines
IPC: G11B19/00
Filed: 1919-03-18
Abstract: 139,030. Gillard, C. H. March 18, 1919. Weigh power-storing mechanism.- Talking - machines are driven by a falling weight which is elevated by will by hand or foot. A chain k passing over a cog-wheel e mounted on a spindle c is attached at one end to a lever a. Mounted also on the spindle c is a cogwheel b engaging with a chain h having a weight i at one end and passing over a cogwheel f on the spindle of the phonograph &c. and the cog-wheel b. On depressing the lever a, the cog-wheels e, b are rotated, causing the weight a to be lifted into position for driving the phonograph &c. The lever a returns to its normal position as the weight falls; or the cog-wheel e may have a free-wheel action.
Patent GB-876119-A (GB)
Title: Improvements in or relating to self-sealing electric condensers
IPC: H01G4/22
Filed: 1958-03-04
Abstract: 876,119. Electric capacitors. BOSCH G.m.b.H., ROBERT. March 4, 1958 [March 16, 1957], No. 6854/58. Class 37. A self-sealing electric capacitor comprises vapour deposited, metallized layers on an impregnated paper base between two layers impermeable to the impregnant. At least one plate may have part surfaces connected by way of fusible bridges such that only the area of the plates enclosing the fusible bridges is protected by a protective layer from the action of the impregnant, which may be a chlorinated diphenyl normally leaving conductive residues on breakdown of the insulation. In an embodiment of the first type paper strips 10, Fig. 1, carry metal plates 11, paper strips 12 separating strips 10, between which are impregnants 13. The metal plates 11 are not directly vapourdeposited on to strips 10 but are sandwiched between two thin protective layers 14, 15 impermeable to the passage of the impregnant. A lacquer, e.g. nitrocellulose, ethylcellulose, or acetyl-cellulose, with melamine resin, or selfsupporting foils of polyethylene, or polyethylene glycol terephthalate are specified. In the event of a breakdown through the insulating layers 10, 12, 14, 15, conducting decomposition products of impregnant 13 may be produced in the voltaic arc 16. Zones 17 sufficiently insulate the conductive portion of the passage formed by the burning away of the plates. In a second embodiment, one of the plates is divided into equal areas 201, Fig. 3, each conductively connected to the margin 200 by a fusible bridge 202, this patterned plate extending over one face of the condenser and the unpatterned plate over the other, as far as the extreme edge of the insulating strips 22 and 23, Fig. 2, respectively. On these strips contact bridges 24, 25 for the attachment of plates 20, 21 are sprayed. A non-metallized layer 26, between plates 20, 21 is impregnated with a chlorinated diphenyl except where the fusible bridges 202 extend at the marginal zone 27. In the marginal zone the condenser is impregnated with e.g. a polyester resin or polyurethane, or sulphur, which do not dissolve in a chlorinated diphenyl. In the event of a breakdown between plates 20, 21, or 28, Fig. 2, a short circuit is formed between the plates, but the bridge of plate 20 in protected zone 27 is melted and thus the breakdown point is isolated.