baber/WOPTO huggingface dataset:
Patent GB-1463848-A (GB)
Title: Manufacture of bubble-free monofilaments
IPC: D01F6/60
Filed: 1974-06-18
Abstract: 1463848 Bubble-free filaments BASF FARBEN & FASERN AG 18 June 1974 [19 June 1973] 26895/74 Heading B5B Polyhexamethylene adipamide monofilaments thicker than 0À5 mm. are obtained by melt-spinning and quenching the spun filaments in a liquid bath at a temperature of 10‹ to 100‹C. The bath may comprise either: (a) a silicone oil of thermal conductivity no more than 0À1 kcal./m./hr./degrees C., or (b) a mineral oil having a thermal conductivity no more than 0À15 kcal./m./hr./degrees C. In either case the bath liquid has a viscosity of from 20 to 90 centistokes, both the conductivity and the viscosity being measured at 20‹ C. The polyamide may optionally contain a small proportion of polystyrene. The monofilaments produced are stated to be free of bubbles.
Patent GB-1044776-A (GB)
Title: Improvements relating to electrolytic cells
IPC: C25C1/20
Filed: 1963-07-08
Abstract: A method of continuously recovering metal by electrolysis from an ionized metal compound forming an electrolyte in an electrolytic cell comprising passing D.C. between a cathode comprising coaxial spaced surfaces and an anode mounted together with at least one scraper blade inside the annular cavity formed by the cathode surfaces, means for producing relative rotation about the axis of the cavity between the cathode surfaces and the anode and scraper blade so that cathodically deposited metal is continuously scraped from the cathode, a sump in the floor of the cell for collecting the detached metal and an opening from the sump for withdrawing the accumulated metal.  As shown the cathode comprises coaxial cylindrical plates 6, 7 joined by bridge pieces 8 and supported from a spider 9 carried by a driven vertical shaft 10. Anodes 15 which may be enclosed in filter bags and doctor blades 16 in scraping contact with the cathode surfaces are supported by a ring 13 supported from the outer wall of an annular tank, a doctor blade being arranged at each sump location 4, recesses 3 in the outer tank wall allowing access to the sumps. Purified particulate silver is obtained by electrolysis of silver nitrate.  Reference is also made to replacement of anodes as they are consumed and to obtaining purified metals from impure metal stock. <PICT:1044776/C6-C7/1>
Patent GB-1391419-A (GB)
Title: Collector apparatus
IPC: B01D51/00
Filed: 1971-11-10
Abstract: 1391419 Filtering gases NATIONAL FOUNDRY EQUIPMENT CO Inc 10 Nov 1971 [25 Jan 1971] 27067/74 Divided out of 1391418 Heading BIT A linear accelerator nozzle 33 directs substantially the whole stream of air containing particulate material through the orifice 39 of enclosed chamber 41. The particles settle on reversal of flow and the purified air stream exits in the direction of the arrows.
Patent GB-1107055-A (GB)
Title: Improvements in or relating to blinds
IPC: E06B9/322
Filed: 1965-06-25
Abstract: 1,107,055. Venetian blinds. A. STRAHM and H. OPPLIGER. 25 June, 1965 [29 June, 1964], No. 27121/65. Heading E1J. In a venetian blind, the upper end of the blind is provided with means in the form of a slidable bolt 42 in contact with the upper most slat to detect final movement of the bottom bar of the blind towards its uppermost position, during which movement it pushes the upper slat upwards and causes the bolt to move upwardly to initiate the interruption of the transmission drive to the lift tape operating drums 11, 12. As shown the oppositely rotating lift drums 11, 12 wind the lift tapes 6a 6b and are driven through bevel gears 18 on a sleeve 18<SP>1</SP> mounted on the drive rod 4 to which it is coupled by a spring-friction coupling 20 and through an aligned sleeve 19<SP>1</SP> secured through the end 37 of spring 21 to sleeve 40 which is freely rotatable with the sleeve 19 but which can be halted for rotation of the shaft 4 in direction of arrow A (raising blind) to hold the sleeve 19<SP>1</SP> to interrupt the drive to the gears 18 by movement of the spring controlled bolt 42 upwards by the uppermost slat, which causes a projection 47 on the bolt to engage the teeth 41 of a castellated peripheral flange on the sleeve 32 and decouple the shaft 4 from the sleeve 40 through loosening the spring friction clutch 30 which operates to couple only during descent of the blind (arrow B) and is automatically cut out during raising of the blind (arrow A). Sleeve 40, through end 37 of spring 21 loosens spring 21 which decouples sleeve 19 from sleeve 18 and interrupts the drive to the drums 11, 12. On descent of the blind (arrow B) inclined surface 47b of projection 47 enables sleeve 40 to rotate backwards and the bolt thrust back by the first tooth 41, allowing the blind to descend. The sleeve 19 is rotated by shaft 4 through pin 51 which is received in recesses 52 in the sleeve 19 to have an idle travel of about 90‹. An amount corresponding to the rotation of tilt rockers (not shown) which are disposed on the shaft 4. Friction discs 33, 34 form a friction brake on sleeve 32 which operates only during descent of the blind when the sleeve rotates with the shaft 4. The lift tapes pass through transverse narrow slots at the ends of the slats which act as guides for the tapes to prevent twisting. Locking levers 23 pivoted on the head rail have one arm flange 25<SP>1</SP> resting on the tape which while taut retains a pawl 26<SP>1</SP> on the other arm 26 out of contact with abutments 22 on the drum 11 or 12 and when the blind is impeded on its descent, the tape slackens and allows the pawl 26<SP>1</SP> to stop the drums rotating and is decoupled by the spring- clutch 20 from the shaft 4.
Patent GB-1508359-A (GB)
Title: Superplastic aluminium base alloys
IPC: C22F1/04
Filed: 1975-06-26
Abstract: 1508359 Superplastic aluminium alloy COMALCO ALUMINIUM (BELL BAY) Ltd 26 June 1975 [27 June 1974] 27154/75 Heading C7A [Also in Division B3] An aluminium base alloy having an ultra fine modified eutectic microstructure of composition:- a) 11-20% Si 0-4% Cu 0-4% Mg optionally with alkali and/or alkaline earth metal present Al balance b) 2-5% Fe  0-2% Cu 0-2% Mn optionally with alkali metal and/or alkaline earth metal present Al balance c) 2-6% Mn  0-2% Cu 0-3% Fe 0-4% Mg optionally with alkali metal and/or alkaline earth metal present Al balance is prepared by freezing under conditions such that the rate of growth of the solid phase during solidification is 10-5,000 microns/sec and the temperature gradient of the solid/liquid interface is from 1-500‹C/cm, the alloy having a microstructure free from any primary phase and containing a high volume fraction of dispersed eutectic silicon, Fe Al 6  or Mn Al 6  in the form of fibrous particles of size less than 10 microns. The alloy may be heat treated e.g. 15 hours at 540‹C or 16 hours at 600‹C, cold-rolled or extruded whereupon it displays superplastic properties.
Patent GB-725530-A (GB)
Title: Improved fluid-pressure operated actuator for power steering mechanisms
IPC: B62D5/24
Filed: 1953-10-05
Abstract: 725,530. Fluid - pressure servomotor-control systems. GENERAL MOTORS CORPORATION. Oct. 5, 1953 [Nov. 15, 1952], No. 27204/53. Class 135. Fluid-pressure operated mechanism applicable to the power steering of a road vehicle comprises a servo piston 16, Fig. 2, connected through helical grooves and balls 18 with an operating screw 12 on the steering column and having internal and external helical teeth 43, 42 respectively engaging corresponding teeth 45, 44 on a member 46 carrying a crank 48 connected to the steering gear of the vehicle and the servo cylinder, and a valve spool 20 mounted on the screw 12 for controlling the flow of pressure fluid to the cylinder. Operation of the screw 12 by the steering wheel 11, Fig. 1, results in the displacement of the valve spool from its central position and the supply of pressure fluid to one end of the cylinder serves to move the servo piston 16. Owing to the helical teeth thereon, the piston turns as it moves axially and at the same time turns the member 46 and its crank 48. The member 46 has no axial movement. The pitch of the teeth may be chosen so that the spool valve is returned towards its central position through the member 46 and the piston 16 by the steered wheels, when the vehicle is used on smooth roads. The mechanism may be operated by the screw 12 in the event of the fluid supply being interrupted.
Patent GB-1084383-A (GB)
Title: Improvements in or relating to room heating devices
IPC: F24C1/04
Filed: 1966-06-28
Abstract: 1,084,383. Combined solid and liquid fuel stoves. HUSQVARNA VAPENFABRIKS A.B. June 28, 1965 [June 29, 1964], No. 27217/65. Heading F4W. A wall 7 having a perforated upper region separates the interior of a sheet metal housing of a room heater into two spaces 8, 9 containing a combustion chamber 13 for oil fuel, and a forwardly facing solid fuel open fireplace 23 respectively. Gases from a burner 17 separated by a plate 19 from an oil regulator 18 fed from an external tank pass from the chamber 13 via an outlet 15 containing a draught regulator 16 to a thin-walled smoke pipe 29 situated in an insulated flue pipe 28 connected to the fireplace by a pipe socket 26 and a smoke outlet 25, one of the latter three parts containing a damper. The Heat transfer between the gases in pipes 28 29 enhances the draught in one of the chambers 13, 23 when firing is in the other, the former having hinged lid 14 while the latter protrudes from the front wall (2), heat transfer to which from space 9 is obviated by the ingress of air through an upper slot behind frame parts (33), (34) (Fig. 3). A girder 21 supports angles 20 on which the fireplace is slidably mounted. Air enters the housing between a base 1 and front wall 2 and through perforations on the bottom of a. rear wall 5 and hinged side wall 6, flows upwardly .around the fireplace 23 and chamber 13 respectively and leaves through a coyer 11 I and perforations in the top of walls 2,5. In a modification (Fig..4) a heat insulated rearward chimney (28) receives at its lower end the smoke pipe from a removable fireplace (46) while ,at its upper it receives internally a smoke pipe (49) from an oil cmbustion chamber (43) atop the fireplace. In a further modification (Fig. 5) a fireplace-unit (53) having the same height of base (54) as that (51) of a separate oil stove (50) may be detachably connected thereto to form one unit by a clamp (57) through opposite perforations in common side walls, and a U-shaped member 58 detachably connected to the bases of the units. In all embodiments a,gas heater may be substituted for the oil stove.
Patent GB-814736-A (GB)
Title: Interference prevention in television receivers
IPC: H04N5/21
Filed: 1955-09-24
Abstract: 814,736. Radio receiving circuits. COLE Ltd., E. K., ATKINSON, N. T., and PICHAL, H. T. Sept. 24, 1956 [Sept. 24, 1955], No. 27287/55. Class 40 (5). An interference reducing arrangement for a receiver of positive modulation television signals employs a spot inverter valve in which adjustment of the contrast control automatically varies and maintains the gain of the said valve, at a correct level for the said contrast setting. The video output cathode follower V2 applies the signal to the modulating cathode of the display tube by lead L1, and a part of the same signal is also applied through condenser C1 to the grid of the spot inverter valve V1, whose anode circuit is connected through lead L3 to the grid of the display tube. Potentiometer P2 adjusts the grid bias of valve V1 to a correct level. Adjustment of the contrast control P2 automatically increases or decreases the cathode potential of valve V1, and hence varies its grid potential, thus decreasing or increasing its gain and hence maintaining the effectiveness of the spot inversion.
Patent GB-760544-A (GB)
Title: Improvements relating to vacuum brake cylinders
IPC: B60T17/08
Filed: 1954-09-22
Abstract: 760,544. Vacuum brake cylinders. WEST. INGHOUSE BRAKE & SIGNAL CO., Ltd., and SIMMONS, A. W. Sept. 12, 1955 [Sept. 22, 1954], No. 27375/54. Class 103 (1). In order to substantially increase the volumetric capacity of a vacuum brake cylinder of the diaphragm type without increasing the vertical height of the brake cylinder, the outer edge 1 of the diaphragm 2 is clamped to a cylindrical inner wall 4 within the brake cylinder in such a manner that the annular space between the brake cylinder wall 6 and the inner wall 4 forms an extension of the upper chamber of the brake cylinder. The diaphragm 2 is clamped between the upper edge of the cylindrical inner wall 4 and a guide member 9 which 'serves as a guide for the diaphragm during movement. This increased volumetric capacity of the upper chamber reduces the reduction in the vacuum in the upper chamber as the diaphragm rises and is effected at the expense of a corresponding reduction in the capacity of the lower chamber; this being an advantage since it reduces the amount of air to be supplied to this chamber from the train pipe when the brake is applied.
Patent GB-323782-A (GB)
Title: Improvements in and relating to windows
IPC: E06B3/34
Filed: 1928-09-05
Abstract: 323,782. Atkinson, J. B., Mitchell, A., and Smith, J. W. Sept. 5, 1928. Divided on 323,767. Stays. - A window comprising two or more pivoting sashes 1, 2 is provided with a projecting arm 5 hinged to the lower stile of the upper sash 2 on its axis of rotation and is connected through the medium of a screw 8 to the upper stile of the window 1 beneath, so as to allow either sash to be pivoted without disturbance of the other. The arm 5 is hinged at 6 and is provided at its outer end with a pivoted bush 7 for the threaded road 8, an unthreaded part of which is rotatably mounted in a projection 11 secured to the upper stile of the sash 1. The screw 8 may be operated by hand or by means of cords or chains. Specifications 254,140, 260,874, [both in Class 20 (iii), Doors &c.], 261,556; and 274,149, [Class 20 (iii), Doors &c.], are referred to.
Patent GB-1383309-A (GB)
Title: Boom section and a boom structure
IPC: E02B15/04
Filed: 1971-06-11
Abstract: 1383309 Scavenging vessel PHIL GILLARD & SON Ltd 12 April 1972 [11 June 1971] 27517/71 Heading B7A [Also in Division E1] Each section 11 of a boom structure 10 comprises a float portion 12 and a keel 14 arranged so that the section floats vertically. The sections are pivotally connected together by links 15 and joints 16 and flexible bellows 22 seal the gap between adjacent boom sections. In the embodiment shown scavenging vessel 41 has a boom structure 10 extending from each side of the hull. At its end adjacent the vessel each boom structure has a buoy 30 which is attached by ropes to the vessel. The buoy is cylindrical and has a cushion 30a of rubber at each end. Ballast 32 can be fed as required through loading plug 31.
Patent GB-490108-A (GB)
Title: Improvements in or relating to air-space insulated electric cables
IPC: H02G3/04
Filed: 1937-10-11
Abstract: 490,108. Cables NORDDEUTSCHE KABELWERKE AKT.-GES. Oct. 11, 1937, No. 27537. Convention date, Oct. 21, 1936. Addition to 478,371. [Class 36] The outer covering of the cable described in the parent Specification consists of a tubular member produced from a tape 2 disposed longitudinally of the cable and bent transversely around the central conductor 1, the said tape having obliquely disposed slots 3 arranged in such manner along a helical path that between the slots are formed bars 4 about which the supporting threads or tapes 5 are passed. The longitudinal edges of the tape may overlap or they may be connected by soldering, welding, or folding.
Patent GB-1061943-A (GB)
Title: Marking composition
IPC: C09D11/00
Filed: 1965-06-30
Abstract: A solid marking composition yielding a mark which disappears on standing in air comprises a hydrophilic solid greasy carrier, particularly a polyethylene glycol or methoxypolyethylene glycol, an acid-base indicator coloured in its basic form and colourless at a lower pH, an alkaline material to maintain the indicator in the basic form, until upon use it becomes neutralized by the atmospheric carbon dioxide, and sufficient water for colour formation.  Specified indicators are thymol- or phenol-phthalein and m-nitrophenol. Specified alkaline materials are Na2SiO39H2O, sodium borate, carbonate or hydroxide and potassium hydroxide.  Plasticizers such as glycerine, propylene glycol, low M.W. polyethylene glycols, diphenylphthalate, dipropylene glycol, liquid polyols and N-cyclohexyl p-toluene sulphonamide, fillers such as alumina, bentonite, and strengtheners such as paraffin wax, shellac, polyvinyl pyrrolidone, or formaldehyde-aryl sulphonamide resins may also be present.  The ingredients are combined, melted and may be cast into a crayon.
Patent GB-897372-A (GB)
Title: Improvements in or relating to electronic counters
Inventor: GOSS JOHN ANTHONY
IPC: H03K23/76
Filed: 1959-08-13
Abstract: 897,372. Counting circuits. RACAL ELECTRONICS Ltd. Aug. 11, 1960 [Aug. 13, 1959], No. 27643/59. Class 40 (9). [Also in Group XIX] A reversible ring counter, each stage of which employs a magnetic core and a transistor, has a bi-stable circuit associated with each stage to exhibit the state of the core; the bi-stable circuit being set to one state by the potential on one electrode of the transistor when the core is set one way and the bi-stable circuit being set to the other state by the potential on another electrode when the core is reset. The counter may be of the kind described in Specification 897,371, and, as shown, the cross-connected transistor bi-stable circuit is set 1 when a counter stage has its core set without conduction of its associated transistor and is set 0 when the stage has its core reset with the transistor conducting.
Patent GB-375641-A (GB)
Title: Improvements in method of making hinge butts
IPC: B21D53/40
Filed: 1931-10-05
Abstract: 375,641. Forging hinges. SOSS, J., 647, East 1st Avenue, Roselle, New Jersey, U.S.A. Oct. 5, 1931, No. 27659. Convention date, Oct. 6, 1930. [Classes 83 (ii) and 83 (iv).] Hinges are formed from blanks 10a, 10b cut on the skew from plate 16 and radially formed by suitable dies into the form shown in Fig. 4, which is then pressed in dies, Fig. 5, to give the shape shown in Figs. 6 and 7, the curve 12 of the hood tapering, and the sides 14 for the pivots being thickened, the surplus parts 22 being trimmed off. The sides 14 are then bored for the hinge pins. In Fig. 8 a single blank cut out is pressed to form two hinge pieces at once which are then severed.
Patent GB-188178-A (GB)
Title: A five speed gear for bicycles and machinery
IPC: B62M11/14
Filed: 1921-10-19
Abstract: 188,178. Sturmey, J. J. H., and Peart, W. J. Oct. 19, 1921. Variable-speed epicyclic gearing suitable for cycle hubs comprises two trains with separate planet gears 9, 10, Fig. 1, and a single internally-toothed annulus 11 movable together laterally so that five speeds are obtained. The gears 9, 10 mesh respectively with sun gears 6, 5 of different diameters loose and slidable with the rest of the trains on a fixed axle 2. The driving-element is a clutch sleeve 4 and the driven element the hub shell 3. The middle speed, a one-to-one drive, is obtained by the position shown in Fig. 1. The drive passes across the sleeve 11<c> of the annulus 11 to ratchet pawls 3d on the hub. Then each train gears separately both up and down. One gear-down position is shown in Fig. 6. The annulus 11 is driven from the sleeve 4 in both low gears and the two-part planet carrier 7, 8 drives,the hub through pawls 3<c>. Sun gear 6 is held by a pawl 6<c> and recesses 2f, Fig. 4. The other gear-down position is obtained by movement farther to the left, when the gear 6 is freed and the gear 5 anchored by dogs 2d. One gear-up position is shown in Fig. 9. The planet-carrier 7, 8 is driven by a dog-end 8<b> engaging the sleeve 4 in both gear-up positions, and the annulus 11 drives the hub through the pawls 3d. The sun gear 6 is held by a pawl 6<b>, Fig. 4, engaging recesses 2<g>. The other gear-up position is obtained by movement farther to the right, when the gear 6 is freed and gear 5 is anchored by dogs 2e. In all cases the hub is ratchetdriven to allow coasting. Operation is effected by a collar 2<c> actuated by a spring plunger within the axle 2.
Patent GB-1503346-A (GB)
Title: Spray head for lute application
IPC: B05B7/04
Filed: 1975-07-01
Abstract: 1503346 Spray-producers COAL INDUSTRY (PATENTS) LTD 25 May 1976 [1 July 1975] 27712/75 Heading B2F  A gun for coating coking-oven doors with lute comprises a head 5 having an inlet 6 for lute under pressure, an inlet 8 for compressed air and a nozzle 7. The inlet 8 is a tube extending approximately to the axis of the inlet 6, and is coaxial with the nozzle. The lute may be supplied from a cylinder containing a piston driven by compressed air which may be from the same source as the air for spraying.
Patent GB-653367-A (GB)
Title: Improvements in or relating to the production of electro-types
Inventor: BALL HARRY HARMAN
IPC: B41C3/08
Filed: 1948-10-25
Abstract: A thermoplastic composition for use in the production of electrotypes (see Group XVI), has incorporated in it an electrically-conductive filler, and also incorporated may be a p  plasticizer, stabilizer, accelerator and lubricant.  The thermoplastic material may be polyvinyl chloride, a copolymer of vinyl chloride and vinyl acetate, polyvinyl acetal, cellulose acetate, or natural or synthetic rubber. The filler may be graphite, carbon black, or a metallic powder.  The composition may comprise 80 parts of a copolymer of 85 per cent vinyl chloride and 15 per cent vinyl acetate, mixed with 70 parts of graphite, 1.5 parts of lead stearate as lubricant, and 0.5 parts of white lead as stabilizer.  Alternatively, it may comprise 82 parts of polyvinyl chloride, 110 parts of carbon black, 2.5 parts of lead stearate, 2.5 parts of white lead, and 30 parts of tricresyl phosphate as plasticizer, or 100 parts of the substance sold under the Registered Trade Mark "Hycar, OR15," a copolymer of butadiene and acrylonitrile having about 25 per cent acrylonitrile, 220 parts of carbon black, 1.0 part of stearin as lubricant, and 1.25 parts of sulphur and 1.25 parts of benzothiazyl disulphide as accelerators.
Patent GB-649248-A (GB)
Title: An improved handle attachment means for brooms, squeegees and the like
IPC: B25G3/24
Filed: 1949-10-31
Abstract: 649,248. Fixing handles to brooms HARRIS, A. E. Oct. 31, 1949, No. 27829. [Class 61(i)] In a device for attaching a handle to a broom, squeegee or the like, a pair of arcuate plates 1, 2 having flanges 3 which engage the underside of the stock are drawn together by two screws 17 each passing through a pair of swivelling cylinders 11, 12 mounted one on each plate. The cylinders are rotatable in housings 13, 14 formed by bending over the ends of metal straps 15 which are fixed as by welding to the plates 1, 2. Gaps are provided in the bent-over parts to allow the screws 17 to pass into the tapped holes 18 in the cylinders. The handle is fixed by a screw in the tubular socket 5 which has a number of tongues bent out from the lower end and welded to the plate 2.
Patent GB-323488-A (GB)
Title: Improvements in or relating to means for indicating vacant seats in theatres, cinemas and the like
IPC: G08B5/22
Filed: 1928-10-01
Abstract: 323,488. Andrews, W. F. Oct. 1, 1928. Indicating number of occupied or vacant seats. -In a system for indicating the number of vacant seats in theatres &c. wherein each seat when occupied operates an indicator, each seat is provided with a switch comprising a frame 13 supporting a pair of contact springs 15, 16 which are operated to close the indicator circuit by a tappet 20 on a plunger 17 when the plunger is depressed against the action of a spring 21 by the seat 22. The strength of the spring 21 is such as to prevent operation of the plunger if a hat, coat &c. is placed upon the seat. The Provisional Specification states that instead of operating the indicator when the seat is occupied, it may be operated when the seat is vacant, the indicating circuit being opened when the seat is occupied. Specification. 106,523, [Class 35, Dynamo-electric generators &c.], is referred to.