baber/WOPTO huggingface dataset:
Patent GB-268505-A (GB)
Title: Manufacture of wool like cellulosic material
IPC: D01F2/08
Filed: 1926-02-12
Abstract: 268,505. Harrison, W. Feb. 12, 1926. Fibres, treating; yarns, treating with liquids, gases, and vapours.-Cellulosic fibres such as cotton linen, ramie or jute whether in the form of fibres, yarns, &c. acquire many of the properties of wool by treating first with caustic alkali or alkali sulphide and carbon disulphide to form an unstable insoluble xanthate, and then converting the latter into a stable compound by treatment with a mild oxidising-agent which will not split off the carbon disulphide combined with cellulose. Suitable oxidizing-agents are nitrous acid or oxides of nitrogen, ferricyanides, iodine, and oxygen or air preferably in the presence of a catalyst such as oxides of iron, cobalt, nickel, or manganese; in the case of air it is necessary that the material should be moist, the air cold, and the treatment prolonged, or that a catalyst should be present. The carbon disulphide may be applied in the form of vapour, or in solution in an inert solvent such as benzene, and it mav be applied before or after treatment with caustic alkali &c. or simultaneously therewith in the form of an emulsion or collodial solution; and the material may or may not be subjected to tension during either of these treatments or during the subsequent washing-operation. The unstable xanthate. preferably after washing with or without the application of tension or after acidifying with a weak acid such as acetic acid, is subjected to treatment with the mild oxidizing-agent. The oxidized stable product, if coloured, may be decolourised by treatment with sulphurous acid. The dried product may be shrunk by treatment with ammonia, sodium sulphide, or sodium sulphite preferably in the presence of alkali. Specifications 19912/01, 126,174, 216,476 and 216,477 are referred to.
Patent GB-600182-A (GB)
Title: Production of acetic acid and other lower fatty acids from their salts
IPC: C25B3/23
Filed: 1942-03-27
Abstract: 600,182. Electrolysis. GROOMBRIDGE, W. H., and HUNTER, W. March 27, 1942, No. 4061. [Class 41] A process for the production of a lower fatty acid of formula R.COOH, where R is an alkyl group containing up to three carbon atoms, from a metal salt thereof comprises electrolysing an aqueous solution of the salt of at least 5 per cent concentration to produce the acid as well as hydrogen and oxygen, the electrolysis being carried out at an elevated temperature not substantially exceeding 95 C. in a cell adapted to prevent admixture of the electrolyte surrounding the anode with that surrounding the cathode. The temperature is preferably between 80 and 95 C. The anode, preferably of nickel, may be immersed in electrolyte contained in a porous vessel, made, for example, of unglazed porcelain or earthenware, the vessel being immersed in an outer vessel containing the cathode electrolyte. A cover is provided to seal both vessels from each other and from the atmosphere. Suitable unions in the cover provide for the separate removal of hydrogen and oxygen. In the recovery of the acid and base from solutions of sodium acetate, electrolysis should preferably be carried out until for each initial two molecules of sodium acetate the anode electrolyte contains one molecule of titratable acetic acid. The cathode electrolyte can remain in the cell until it consists of a solution of caustic soda only. The removal of the electrolytes and their replacement can be carried out without interruption of the process. Acetic acid can be recovered from the withdrawn anode electrolyte by distillation or by means involving the crystallization and decomposition of acid sodium acetate. To prevent the cathode from being coated with the base in the electrolysis of solutions of salts of bases of low solubility, a porous screen may be interposed. between the cathode and electrolyte, and the space between filled, with an electrolyte free from the base.
Patent GB-731101-A (GB)
Title: Improved gear pumps
Inventor: PHIPPS JOHN WILDEY
IPC: F04C2/18
Filed: 1953-02-13
Abstract: 731,101. Gear pumps. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Jan. 15, 1954 [Feb. 13, 1953], No. 4078/53. Class 110 (2). A gear pump comprises two separately operating sets of gears 10, 7; 9, 6, on either side of a centre plate 5, characterized in that the plate contains ducts (14, 15) leading from the inlet port 13 to each set of gears, and two separate outlet ducts (16, 17) from each set of gears to two separate outlet ports 18, 19. The inlet may lead directly into the centre plate or through the hollow shaft of a driving or driven gear. The two driving gears may be mounted on two axially interlocked shafts, or on a common shaft. The driven gears may have a common shaft. A number of these pumps may be driven by one continuous or axially interlocked shaft. Metals such as hardened steel or heat-resistant alloys may be used. The pump may be used for viscous liquids such as used in artificial-silk spinning, and be fed from a heated grid or an extruder.
Patent GB-278241-A (GB)
Title: Improvements in sheet feed mechanism
IPC: B65H5/22
Filed: 1927-02-15
Abstract: 278,241. H÷hme, O., and Eule, A. Feb. 15, 1927. Feeding sheets.-Sheets are fed to printing- machines by conveyer bands 5, arranged horizontally, vertically, or as shown, and they are held on the bands by means of air blasts delivered through apertures of a pipe 7.
Patent GB-136714-A (GB)
Title: Device for Use in Washing Clothes and the like.
Inventor: LATONA BENJAMIN FRANKLIN TITUS
IPC: D06F15/00
Filed: 1919-02-20
Abstract: 136,714. Titus, B. F., (known as Latona, F.). Feb. 20, 1919. Hand-rubbers for washing clothes consist of a number of corrugated rollers D supported by turned-over portions B' formed integrally with, or secured to, a metal plate A provided with a grip F. In the form shown in Figs. 2 and 4, the grip is carried by upturned extensions E of the plate A; but, in a larger construction, the grip has its supports separate from, but fixed to, the plate. More than one roller may be arranged on each spindle C, and the numbers or total lengths of the rollers on the various spindles may diminish from the centre outwards as shown. The rollers may be made removable by arranging their spindles to screw into position. When the plate A and the portions B' are constructed from a single stamping, Fig. 11, the portions B<1> are bulged at B<3> to increase their rigidity.
Patent GB-969301-A (GB)
Title: Apparatus for inspecting the level of liquids in containers
Inventor: CALHOUN FREDERICK LEE
IPC: G01F23/292
Filed: 1963-02-01
Abstract: 969,301. Bottling; conveyers. INDUSTRIAL DYNAMICS CO. Ltd. Feb. 1, 1963, No. 4293/63. Headings B8A and B8T. Liquid-filled bottles 11 are carried by a conveyer 13 to a liquid level inspection apparatus 10 which operates an electrically controlled system whereby if the liquid level in a bottle lies outside a predetermined range that bottle is removed from the conveyer to a rotating platform 60 by star-wheels 30, 31. The apparatus includes a light source 83 and two vertically spaced photo-cells 20, 21 which are laterally misaligned with a thin beam of light emitted from a slit 84. A further photo-cell 25 is aligned with the light beam but above it, and prepares a reject operation for each bottle as it enters the inspection zone, and operates a reject operation when the bottle leaves that zone if the photo-cells 20, 21 have not developed a signal indicating that the liquid level is satisfactory. With the liquid at a satisfactory level, and within a range equal to the vertical spacing of the photo-cells 20, 21, the light beam is diffused to illuminate the cell 21 and not the cell 20. If the bottle is too full, both cells are illuminated, and if too low neither cell is illuminated. The star-wheels are mounted on an adjustable platform 29 and are freely rotated by the travel of the bottles on the conveyer 13. A vacuum operated suction disc 41 is associated with each bottle receiving recess, and is operated to grip the bottle if it is unsatisfactorily filled, whereby the bottle is transferred to the platform 60. A vacuum pump 76, Fig. 3, is associated with the discs, and each disc is associated with a valve 72 which is raised by a plunger 77a to produce a suction when a solenoid 77 is energized. As the star-wheels rotate, the bottom of the raised valve engages a cam 38 to lower the valve and cut off the suction at the disc whereby the bottle is released at the rotating platform.
Patent GB-982886-A (GB)
Title: Ventilation duct
Inventor: BERGSTROM THOR ALLAN
IPC: F16L9/00
Filed: 1964-01-31
Abstract: 982,886. Ducts; duct joints. BAHCO. A.B. Jan. 31, 1964, No. 4335/64. Headings F2G and F2P. In a ventilation duct, comprising several duct units joined together in series, adjacent duct units 1, 2 have at their opposed ends welded transverse sections 9 which are shaped and arranged so that they define together with the marginal zone of the duct unit a channel open towards the end of the duct unit, the sections having at their outer sides bent-over edge portions 13, a joining strip 14 being fitted over the portions 13 to hold the opposed sections together and a gasket strip 16 being inserted between the sections in opposed channels. As shown, the duct sections are assembled from metal sheets having flanges 5 connected by U-shaped strips 6, the latter having gaskets at the bottoms thereof.
Patent GB-212073-A (GB)
Title: Improvements in or relating to brackets for mounting adjustably on vertical supports
IPC: A47B57/56
Filed: 1923-02-14
Abstract: 212,073. Alford, c. R. Feb. 14, 1923. Brackets, adjusting and securing.-A bracket for mounting adjustably on a vertical support comprises a carrying arm 6, provided with a foot 9, having a knife edge 11 which bears against the vertical support 1, and a pivoted link 2 arranged to slide along the support, the link canting under load to grip the support. The link is provided with a knife edge 10 and a part thereof is located in a recess 7 in the bracket so that the lower edge of said' recess forms a stop for maintaining the link in a horizontal position when the bracket is moved upwards. According to the Provisional Specification this stop may take the form of a pin secured in the bracket.
Patent GB-986813-A (GB)
Title: Improvements in or relating to liquid fuel burning devices and air swirlers therefor
IPC: F23D11/40
Filed: 1962-02-05
Abstract: 986,813. Burners. MAX WEISHAUPT SCHWENDI G.m.b.H. Feb. 5, 1962 [Feb. 6, 1961], No. 4412/62. Heading F4T. An air swinlar for use in a liquid fuel burning device comprises a disc 13 with a central circular aperture 15 from which radiate slats 16 provided with curved scoops 17. The latter are on the downstream side of the disc 13 and are substantially L-shaped in section. The disc 13 is connected by lugs 10 to an inner tubular member 6 axially adjustable by means of bolts 4, 5 and slats 7, 8 within an air intake tube 1 having a radially contracted downstream end and mounted in a sleeve 2 of a frame 3. The periphery of the disc 13 defines an annular air passage 18 with the inside of tube 1. The disc 13 is spaced between the downstream end of the intake tube 1 and a fuel nozzle 14 but is positioned closer to the nozzle 14.
Patent GB-367552-A (GB)
Title: An improved method of and means for securing the windscreens of road vehicles, house windows or ventilators and the like in adjusted positions
IPC: F16C11/10
Filed: 1931-02-13
Abstract: 367,552. Friction pivots. BROWN, W. C., 41, Studfield Crescent, Wisewood, and TWIDALE, R. B. C., Gatefield, Abbeydale Road, both in Sheffield. Feb. 13, 1931, No. 4510. [Class 65 (ii).] A friction pivot for windows comprises a member having a circular recess with one or two leaf springs anchored at each end on the wall of the recess, and a second member having a boss fitting in the recess. The boss preferably has two flat sides, as shown at d in Fig .7, so that it normally lies between the springs f without distorting them, but on any movement of the window, the springs, are distorted to create the necessary pressure to hold the window in position. A central projection is provided in the recess to engage in a hole in the boss to maintain it in position ; the parts may be connected by a central screw.
Patent GB-252077-A (GB)
Title: Improvements in apparatus for separating liquids
IPC: B01D17/02
Filed: 1925-02-18
Abstract: 252,077. Pirbright Co., Ltd., and Beale, A. Feb. 18, 1925. Separating by gravity.- Apparatus for separating liquids of different densities comprises a tier of separating chambers of horizontally elongated form of the kind described in Specification 218,462, and a common collecting compartment for the lighter liquid provided with a discharge valve actuated by the rise or fall of the level of the heavier liquid. Mixed liquids from an inlet 17, Fig. 1, are distributed' from a chamber 9 through openings 11 to chambers 2, 3, 4 through which the heavier liquid flows to an outlet 18, while the lighter liquid, rising between baffles 14, passes back and through openings 12, branch pipes 13, and a pipe 13a to a collecting chamber 6, the discharge from which is controlled by a float 8. Distributors 15, 16 are provided in the chamber 9 and in the separating chambers and a heating coil 20 in the chamber 6. In the modified apparatus, Fig. 7, the mixture passes successively through separating chambers 23, 24, 25, connecting passages 27 being provided. The plates forming the separating-chambers may be curved in crosssection as shown in Fig. 10. Instead of the baffles 14 the separating chambers may have longitudinal divisions consisting of perforated plates or of fiat bars laid on angle irons fixed to the sides of the chambers and held in place by wedges.
Patent GB-285377-A (GB)
Title: Improvements in or relating to sleeve valve mechanism for internal combustion engines
IPC: F01L5/04
Filed: 1928-02-13
Abstract: 285,377. Haltenberger, Inc., J., (Assignees of Haltenberger, J.). Feb. 14, 1927, [Convention date]. Cylinders, combustion chambers of, ports and igniters for, and cooling. - The cylinder port 20 controlled by a sleeve, valve 22, extends diametrically across the cylinder head and opens into a combustion chamber 21, which surrounds the valve as shown in Fig. 4, so that the pressure thereon are balanced. The valve is preferably provided with two opposed ports 23, and the inlet and exhaust passages 30, 31 are forked at their inner ends so as to form opposed ports, those 35, 36 of the inlet passage 30 being in a plane at right angles to those 37, 38 of the exhaust passage 31. In a modification, the inlet and exhaust passages are arranged one over the other at the same end of the core 25, and a supplementary inlet port may be provided in the valve and the core. A spark plug 70 is fitted at the top of the chamber 21, and a water jacket 32 surrounds the exhaust jacket. Casings.-The valve-actuating lever 50 is mounted on a ball joint 51 formed by a split block 52 secured within a casing 53. In a modification, the lever 50 is replaced by a vertical shaft mounted in bearings in the casing 53.
Patent GB-1070633-A (GB)
Title: Amplifier of 'ultrasonic waves
IPC: H01S4/00
Filed: 1966-02-02
Abstract: 1,070,633. Stimulated emission devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 2, 1966 [June 1, 1965], No. 4540/66. Heading H1C. Ultrasonic wave amplification is obtained by a double quantum stimulated emission process. As shown in Fig. 1, a quartz crystal transducer 2 is bonded, e.g. by resin, to a magnesium oxide crystal 4 doped with Fe<SP>2+</SP> or Ni<SP>2+</SP> ions. The transducer 2 is coupled with a re-entrant cavity resonator 6 and generates ultrasonic waves when R.F. pulses are applied from a generator 8 through a waveguide 10. After the ultrasonic waves are amplified by the active medium 4 they are returned through the transducer and sensed by a microwave detector 12. R.F. pulses from a generator 14 are applied through a waveguide 16 to a cavity 20 in the form of a silvercoated ceramic cylinder in which the active medium is located, the cavity being surrounded by copper coils 22 through which current pulses are applied by a thyratron 24. The cavities and portions of the waveguides are immersed in liquid helium. Population inversion in the active medium is obtained by the effects of the R.F. signal in cavity 14 in combination with controlled change of the magnetic field produced by the coil 22, this magnetic field being so varied that the resonant frequency of the transitions between the spin states (E 0 -E 1 ) and (E + - E 0 ) pass through the frequency # of the R.F. magnetic field in cavity 20 (Adiabatic fast passage technique). In operation the thyratron causes change in intensity of the coil field between lower and upper values (H 0 <SP>1</SP>) and (H 0 ), Fig. 3 (not shown), and during and after the period in which the field reduces, the R.F. pulse is applied from generator 14. When the magnetic field reaches its lower value (H 0 <SP>1</SP>) the ultrasonic signal enters the active medium, and when the amplified ultrasonic wave leaves the active medium the R.F. pulse is terminated. Double quantum emission is produced in that the fields at the ultrasonic frequency # and at the R.F. frequency # stimulate transitions from the + 1 to the - 1 spin levels, and for each transition one quantum of energy for each frequency is simultaneously emitted such that is described, Fig. 4 (not shown), in which the active medium 4 is located between two crystal transducers 2, (26) each with a respective cavity 6, (28) coupled to an R.F. generator 8, (32) and a detector 12, (30). This arrangement enables two ultrasonic signals to be simultaneously amplified and detected, the R.F. field being terminated as soon as the magnetic field reaches its lower value. An alternative active medium comprises CaF 2  doped with U<SP>4+</SP>  ions.
Patent GB-547419-A (GB)
Title: Improvements relating to heat-insulating doors especially for refrigerating chambers on board ship
IPC: B63B3/68
Filed: 1941-04-05
Abstract: 547,419. Sliding doors. GRANT, J. April 5, 1941, No. 4580. [Class 20 (iii)] [Also in Group XVIII] A heat insulating door 10 for refrigerating chambers, and applicable also to ventilated closures, has bevelled side faces 13 which fit against similarly shaped faces 16 on the opening of the wall, and is secured in place by at least one cross bar 19 extending across the opening to which if is clamped by a screw 20 having a head 23. A rubber picking strip 17 ensures effective sealing. Additional means for forcing the door into position are pairs of slide bars 25, 26, each bar of a pair being moved in opposite directions by a rack and pinion so that the bevelled ends 25A, 26A of the bars are forced under fittings 30 on the doorway. The other end of each bar is oppositely bevelled, these bevels forcing the door to open when the slide bars are fully withdrawn. The door during its movement to and from the opening is supported on overhead rails by rollers 33 in swivel brackets 34 so that it may be moved away from the opening by being run along rails 32, and then moved sideways on a single track 31. Guides 38, 40 are provided for the bottom of the door. In a modification, the door may be provided with additional closing means consisting of two vertical bars fixed to the wall above and below the door and carrying screws clamps bearing on the door.
Patent GB-644476-A (GB)
Title: Method of, and apparatus for, abrasive polishing
IPC: B24B31/06
Filed: 1948-02-17
Abstract: A method of polishing one or more articles includes immersing the article or articles in a liquid containing abrasive particles and relatively vibrating the abrasive particles in the liquid and the article or articles at a sonic or supersonic frequency.  The articles may be carried through the polishing tank by a conveyer, and may then pass through rinsing and/or degreasing tanks, which may also be fitted with vibrators.  Alternatively, abrasive may be present in a degreasing tank so that polishing and degreasing are performed simultaneously.  Specification 602,801, [Group XXIII], is referred to.
Patent GB-550635-A (GB)
Title: Improved apparatus for drawing articles
IPC: B21D22/28
Filed: 1942-04-08
Abstract: 550,635. Stamping. ABBEY, A. (Bliss Co., E. W.). April 8, 1942, No. 4613. [Class 83 (iv)] A blanking and cutting press has the dies and related parts arranged to double draw successive steps taking place in opposite directions whereoy the overall height and overhang is reduced. The bed of the press 8 supports a ring 11, counterbored to receive the blanking die 13, and a concentric punch 16 within which slides the redraw punch 19 supported by a ram 20 working through the bed. A draw ring 22 supported by rods 23 form a fluid actuated plate 24. The press ram 30 is countersunk to receive the reducer die 37 itself counterborec for the first drawing die. and blanking punch hole. A knock out 33 slides in the press ram. In operation the ram 20 and knock out 33 move down together cutting a disc from the sheet S the draw ring clamping the disc against the punch. Immediately. after blanking, the disc is clamped between the punch 19 and knock out 33 these parts now being stationary whilst the die 43 draws the blank over the punch 15 till the drawing 22 contacts the bed 8. The ram 30 now remains stationary and the punch 19 moves upwardly carrying with it the knock out 33 and redrawing the blank through the die 37. The ram 30 and the punch 19 now return to their original positions leaving the cupped blank, stripped from both die and punch, bottom upwards, ready for immediate transfer to further cutting apparatus if required.