baber/WOPTO huggingface dataset:
Patent GB-573930-A (GB)
Title: Improvements in the fermentative production of a mixture of fatty acids
IPC: C12P7/52
Filed: 1941-04-11
Abstract: The fermentation of carbohydrates such as maize or molasses to obtain acetic, propionic and butyric acids free from other acid byproducts such as lactic, formic, capronic and succinic acids, is effected with cultures from soils in which beet-root, sugar-beet or carrots have been cultivated and prepared as described in Specification 572,642.
Patent GB-154635-A (GB)
Title: Improvements relating to electrolysis
IPC: C25C5/02
Filed: 1919-02-27
Abstract: 154,635. Adam, M. A., Stevenson, J., Mabbitt, A. T., and Fieldhouse, J. Feb. 27, 1919. Electrodes; connexions; electrodes, moving; treating after electrolysis; electrolytes, circulating, -In a call for the deposition of metals in non- adherent form, electrolyte flows uniformly between anodes and a rotary cathode. The cathode, of drum form, may rotate near anodes of circular trough form, electrolyte being circulated transversely to the axis of the drum. The cell is suitable for depositing tin from solutions containing ferric chloride, for instance the detinning-solution described in Specification 154,242. In one arrangement, two anode bars a, b, preferably of graphite impregnated with paraffin wax, together form a trough. Electrolyte is admitted to the trough from spaces m between the anodes and the cell wall, preferably by way of holes f near the top edges of the trough, the flow being controlled by weirs o. Outlet ports e at the bottom of the trough lead to a well p, whence passages q conduct the liquid to a compartment r provided with an adjustable outlet weir s. Grooves in the upper edges of the anodes receive conducting-bars h connected to the cell bottom by bolts i which are arranged to avoid the passages q. The ends of the cell are secured by bolts or by nuts on the ends of the conducting-bars h. Sheets of rubber l are placed between the anodes and the bottom and ends of the cell. The removable cathode may also be of carbon impregnated with paraffin wax; it extends beyond the ends of the anodes. Deposited metal is removed from the cathode by a scraper v and a shoot w. A current density of 2.5 amp. per sq. in. of cathode surface may be used. In a modification, the trough is formed by a single anode, in which the conducting-bars are embedded, the electrolyte then flowing over the top edge into the trough; or connexion may be made by drilling holes through the cell ends into the cathode and plugging them with finely powdered carbon impregnated with paraffin wax. In another modification, two troughs are formed by two outer bars shaped as shown in Fig. 1 and a single central bar of the form which would be obtained by placing two such bars back to back. Electrolyte flows into the troughs through holes near the top edges of the outer bars, and escapes through horizontal and downward passages in the central bar, the rotation of the cathodes preferably being in the same direction as the flow of liquid'. Draining passages only are provided at the bottoms of the troughs. Removal of the metal may be aided by shafts each carrying four rubber wipers. The effective cathode area may be regulated by rubber pads fitting against the cathodes; one of the anode bars shown in Fig. 1 may then be omitted.
Patent GB-163474-A (GB)
Title: Improvements in or relating to the protection of surfaces
IPC: C09D191/00
Filed: 1920-02-18
Abstract: In a process for recovering wool-fat from wool-washing effluent, the liquor is subjected, before the addition of a soap-forming reagent such as milk of lime, to a flotation treatment as described in Specification 157,490.  In another process, calcium chloride is added and the precipitate washed, dried, and extracted with hot acetone or dissolved directly in a non-inflammable solvent.  Yorkshire grease may be freed from fatty acid by stirring milk of lime into the molten grease and driving off water by evaporation.  The product is treated with solvent and the solution is filtered.
Patent GB-1486535-A (GB)
Title: Fire sensor devices
IPC: G08B17/00
Filed: 1974-11-08
Abstract: 1486535 Ionization and semi-conductor smoke detectors NOHMI BOSAI KOGYO CO Ltd 8 Nov 1974 [9 Nov 1973] 04989/77 Divided out of 1485790 Heading GIN [Also in Division G4] A fire sensor device includes sensors 2, 21 differently responsive to at least one phenomenon accompanying combustion and having a common evaluating circuit 7 for initiating an alarm signal in response to predetermined changes in said sensors, each sensor having a respective amplifying element 3, 26, the output signal from one amplifying element being arranged to reduce the bias voltage of the other amplifying element to be exceeded by the response of the other sensor in order that an alarm signal shall be produced. As shown in Fig. 3, ionization chambers 1, 2 are differently sensitive to combustion aerosols or differently accessible to the ambient air and have their common junction voltage amplified by a field-effect transistor FET3, the output of which is arranged to trigger a thyristor 7 which provides an alarm signal. One of two sensors 21, 22 in a bridge circuit may be a semi-conductor gas sensor having a specific sensitivity for e.g. carbon monoxide whilst the other may react to another combustion phenomenon or merely provide temperature compensation. The output of the bridge is amplified at 26 and is arranged to alter the voltage across resistor 28 and so reduce the threshold of amplifying element 3 to signals from: the ionization chambers 1, 2. In Fig. 1, (not shown) details 21 ... 26 are replaced by a temperature-sensing thermistor connected to the base of a single transistor which varies the voltage across resistor 28. In Fig. 2 (not shown) components 21 ... 26 are replaced by a smoke detector comprising a cadmium sulphide photo-resistor and an incondescent lamp stabilized by a Zener diode. In Fig. 4 (not shown) thyristor 7 is replaced by a complementary pair of transistors, components 21 ... 25 being replaced by smoke detector using a light source and solar cell.
Patent GB-1518611-A (GB)
Title: Sharpener for commodity slicing machine
IPC: B24B3/46
Filed: 1976-02-09
Abstract: 1518611 Machinery guards HOBART CORP 9 Feb 1976 05015/76 Heading F2J [Also in Division B3] A commodity slicing machine comprises a housing 11, Fig. 1, a base 12, an adjustable gauge plate 13, a rotatable circular knife 15, a knife guard plate 17 with an edge guard portion 18 and a sharpener 25. The guard plate 17 leaves a part of the knife edge 20 exposed in an active cutting area, exposes the edge 20 in a cutout 28 to the sharpener 25 and protects the remaining part of the edge 20. The sharpener 25 comprises a rotatable sharpenging stone 30 and a non-rotatable honing stone 31. The sharpening stone 30 can be moved towards the knife edge 20 by rotating a handle 33 which rotates a pinion 35 and so drives a rack 36 against a return spring 37 (Fig. 4, not shown). The honing stone 31 can be moved towards the edge 20 by rotating a second handle 41 to pivot a shaft 42 and arm 44 against a return spring 46. The stone 31 is normally supported on the arm 44 at an angle relative to the edge 20 but is free to pivot on a pivot 47 against a return spring 48 (Fig. 10, not shown) so that it may engage the edge at an angle substantially parallel thereto. The sharpener 25 is carried by a plate 50 and mounted on a bracket 27 which includes a pair of channels 52 in the shape of an inverted "U" and a second pair of open ended channels 53 located beneath the channels 52. A pair of fixed pins 54 extend from the plate 50 into channels 53 and a pair of retractable pins into channels 52. The sharpener 25 can be moved from a storage position (Fig. 7) by lifting it, the pins 55 sliding in the left part of the channels 52, pushing it to the right (Fig. 8) and moving it down, the pins 55 sliding in the right-hand part of the channel 52, to the sharpening position (Fig. 9) and returned. In order to remove the sharpener from the slicing machine the pins 55 can be retracted out of the channels 52 by pressing a pair of buttons 57 against return springs 58 (Fig. 6, not shown). A guard cover 70 for the sharpener 25 is shaped to form a convenient handhold and includes a guarding section 75 which is divided by a sanitary wall 85 into one portion 76 to protect the knife cutting edge 20 when the sharpener is in the sharpening position and a second portion 77 to protect the edge 20 when it is in storage position (Fig. 7). In the sharpening position the sharpener 25 is held by a hook 91 of a latch 90 biased by an integral resilient spring arm 92 against a keeper 93. The latch 90 is released by pressing upwardly a release extension 95. The release extension 95 is positioned beneath the cover 70 opposite to the knife 15 in order to prevent the operator's hand touching the knife edge 20 while actuating the latch release.
Patent GB-491012-A (GB)
Title: Improvements in and relating to light reflectors
IPC: F21V7/09
Filed: 1937-02-19
Abstract: 491,012. Street &c. lamps. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 19, 1937, No. 5056. Convention date, Feb. 21, 1936. [Class 75 (ii)] A lamp, particularly for street lighting, has a reflector comprising a succession of horizontal zonal surfaces 20 ... 26 each built up of a number of elements P<1> to P<10> and S<0> to S<10> hinged together and positioned at different angles to a linear light source 28, the zonal surfaces being generated by straight-line generatrices whose angle of tilt and path of movement is such that light from the source 28 is projected in a series of partially overlapping patterns arranged in a substantially fan-shaped beam, the beams reflected by the zones partially overlapping one another so that the intensity of light in any portion of the total beam may be given a predetermined value by regulating the amount of overlap. The zonal surfaces are symmetrical on opposite sides of a medial plane and are joined by horizontal reflecting surfaces 40 ... 46, the top of the reflector being closed by a surface 47 having an aperture which permits passage of the bulb 48 and is surrounded by a collar 49 serving to support the complete reflector. The Specification includes detailed calculations, made in respect of zones 24, 25 as examples, for arriving at the angles and dimensions necessary for projecting a desired light pattern on to the road. Reference has been directed by the Comptroller to Specification 476,996.
Patent GB-290757-A (GB)
Title: An improvement in the construction of brackets or supports for watercloset cisterns,lavatory basins and other articles
IPC: E03C1/322
Filed: 1927-02-23
Abstract: 290,757. Barber, F. P., and Oates & Green, Ltd. Feb. 23, 1927. Brackets, securing.- Relates to means for securing a metal shank, adapted for attachment to a wall, to an earthenware &c. bracket for supporting a water cistern &c. The shank b, provided with lug b<2> for its attachment to a wall &c., is passed into an inwardly extending recess s a', shaped as shown in Fig. 3, on the rear face of the bracket, the recess terminating in an enlarged portion so that by moving the sha,nk laterally an upstanding portion b<1> at its end engages behind a shoulder b'. The recess is then filled with cement &c. to hold the shank in position. In order to avoid the use of a collapsible core in forming the bracket, the enlargement at the end of the recess may be continued upwards to the top edge as shown at a<3>. This recess is also filled with cement &c. and in addition a wedging piece may be inserted to hold the projection b<1> behind the shoulder b<4>. The shank may have more than one engaging portion in which case a corresponding number of enlargements will be made in the recess a'.
Patent GB-877590-A (GB)
Title: A new or improved device for controlling operation of friction clutches
IPC: F16D48/02
Filed: 1959-02-13
Abstract: 877,590. Gearing for stopping and starting machinery. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. Feb. 13, 1959 [Feb. 15, 1958], No. 5152/59. Class 80 (2). To obtain cushioned re-engagement of a friction clutch 6 on a motor car, disengaged against the bias of a spring 7 when fluid under pressure is admitted through a port 11 to act upon the piston 2 of a servomotor, a floating piston 8 is provided between the port and the servomotor piston, the floating piston incorporating a one-way valve 9 which freely admits pressure fluid to act on the servomotor piston 2 for clutch disengagement and the floating piston being biased rightwards against a stop 13 by a spring 10. When the pressure of the fluid supplied at the port 11 is allowed to fall for clutch re-engagement, the clutch-engaging spring 7 slides the servomotor piston 2 leftwards and the fluid trapped by the one-way valve 9 in a space 14 between the servomotor piston and the floating piston 8 slides the latter leftwards against the bias of its spring 10. When initial engagement of the clutch 6 has been achieved, the bias of the clutch spring 7 equals the bias of the floating piston spring 10. Completion of the engagement of the clutch is then obtained by the slow seeping of fluid from the space 14 adjacent the servomotor piston 2 through a restricted by-pass passage to the inlet port 11. In the form shown, the restricted bypass passage comprises a pipe 17 the flow through which is adjusted by a needle valve 18 under the control of a vacuum servo 21 connected to the inlet manifold of the car engine by a pipe 22, adjustment of the accelerator pedal position varying the inlet manifold depression and hence the position of the valve 18 to control the speed of clutch re-engagement. In a modification, Fig. 1 (not shown), the by-pass pipe 17 is replaced by a groove in the piston 8 to one side of the one-way valve 9, this groove allowing a slow bleed of the operating fluid. The clutch may be associated with a change-speed gear in which the ratios are established by servo means actuated either manually or in dependence on the speed or torque of the car engine.
Patent GB-1100752-A (GB)
Title: Improvements in or relating to a method of forming a turned welt on knitted articles and articles comprising such a turned welt
IPC: D04B11/32
Filed: 1965-02-05
Abstract: 1,100,752. Knitting. ETABLISSEMENTS GASTON VERDIER. 5 Feb., 1965 [30 Dec., 1964], No. 5160/65. Headings D1C and D1K. In forming a turned welt upon a straight-bar machine needle loops of the first of a series of courses having a given number of loops are retained are welt hooks and knitted into a later course having a larger number of loops. In one embodiment every fourth needle loop of the first course is retained. After knitting the last course B of the first series, yarn behind alternate needles, such as 102a, c, e, is transferred to the adjacent needle. Knitting then recommences on all needles. The welt is completed by depositing the held loops on spaced needles thereby obtaining a less-bulky seam. In an alternative embodiment alternate needle loops are retained, and two loops knitted through each of the first series when knitting is commenced on all needles.
Patent GB-1099744-A (GB)
Title: Adjustable sealing device, particularly for spigot and socket joints
IPC: F16L21/04
Filed: 1966-02-07
Abstract: 1,099,744. Seal for pipe joint. BRœDER MANNESMANN G.m.b.H. Feb. 7, 1966 [Feb. 13, 1965], No. 5251/66. Heading F2G. An adjustable seal for spigot and socket pipe-joints comprises segmented clamping rings 5, 6 coupled by bolts 8 passing through poles in eccentric bushings 9 in the segments. One end 7 of each segment is bent out of the general plane to overlap the adjoining segment and the bolt is passed through both; four such segments each forming one of the rings 5 and 6 with the bolts 8 interconnecting them. Each bushing has a square extension 10 whereby the position of the bolt holes, which are eccentric in the bushings, may be adjusted by spanners. The segments have circumferential strengthening ribs 14 and are bevelled at their inner edges 15 as required to fit the pipe flange and those of the ring 6 are shaped at 16 to receive a resilient sealing ring 18 with reinforcing inserts at 19.
Patent GB-534596-A (GB)
Title: Improvements in or relating to means for removing moisture from a web of material
IPC: G03D15/02
Filed: 1940-03-21
Abstract: 534,596. Drying films and other materials. KODAK. Ltd. March 21. 1940, No. 5287. Convention date, June 17, 1939. [Class 34 (i)] The material F is passed through a closed chamber to which air is admitted under pressure through nozzles 16, the size of the inlet and outlet openings for the material corresponding substantially to the width and thickness of the material whereby the air in escaping under pressure therethrough removes the moisture. The inlet and outlet openings may be formed between pairs of rollers 9, and one of each pair may be pressed towards the other by a light spring.
Patent GB-107757-A (GB)
Title: Starting Device for Internal Combustion Engines.
Inventor: DOLCE GIUSEPPE
IPC: F02N99/00
Filed: 1917-04-20
Abstract: 107,757. Dolce, G. July 4, 1916, [Convention date]. Starting.-A hand pump 21 supplies mixture to the cylinders from a small carburettor 20 through pipes 27, 27<1> provided with cocks 22, 23 and non-return valves 24.
Patent GB-705780-A (GB)
Title: Opposed piston internal-combustion engine
IPC: F02B75/26
Filed: 1952-03-04
Abstract: 705,780. Four-stroke engines; driving- gear. FERNBRUGG, B. FIALA-. March 4. 1952 [March 12, 1951], No. 5615/52. Class 7(2) Connecting-rods P, Fig. 4, attached to the same crank throw K and each having a rigid extension fulcrummed to a link L pivotable about a stationary point II, each have independently fulcrummed thereon limbs P<1>, P<2> pivotably connected to levers S<1>, S<2> independently fulcrummed about stationary points III (which coincide as shown) and pivotally attached respectively to connecting-rods P<3>, P<4> of pistons K<1>, K<2> controlling exhaust ports A and intake ports S respectively of adjacent ones of a cylinder trio Z<1>, Z<2>, Z<3>. The linkage disposition is such that the pistons K1, K2 of a cylinder mutually complete a four-stroke cycle at each crankshaft revolution, the movements of the pistons during this time being as shown by the upper and lower curves in Fig. 5, wherein such movement is plotted vertically against degrees of crank angle horizontally, the position and extent of the ports A, S being as indicated. On the intake stroke, the intake ports S are not opened until the residual gases have been expanded to be below atmospheric pressure to achieve external cooling. The invention is applicable to single-cylinder engines, or the arrangement shown may be duplicated axially of the crankshaft. Engines according to the invention may be air or water cooled and work on the Otto or Diesel cycle, and may incorporate water injection. In a practical construction. Fig. 1 (not shown), the lever 2<2> is forked to bridge the lever S<1> and with duplicated limbs P<2>, whilst each lever has a tying member connecting its ends.
Patent GB-1016204-A (GB)
Title: Improvements in or relating to the manufacture of corrugated sheaths for electric cables
IPC: B21C37/09
Filed: 1964-02-11
Abstract: 1,016,204. Sheathing electric cable; corrugating; welding by pressure; jointing. GENERAL CABLE CORPORATION. Feb. 11, 1964 [Feb. 11, 1963], No. 5680/64. Headings B3A, B3E, B3R and B3V. [Also in Divisions H1A] A method of sheathing electric cable comprises the steps of bonding a strip of conductive tape to the centre of a wider strip of steel tape, forming the strip around the cable with the conductive tape inwardly, welding the abutting edges of the steel tape and forming a continuous corrugation in the sheath. Tapes 14, 16, 18 of thermoplastic bonding material are applied to the steel tape 10 which is heated by a gas heater 4 and an aluminium conductive tape 12 is bonded thereto by heat and pressure applied at the station 20. The composite tape is folded about the cable 1 between rollers in a folding station 26 and is welded at a welding station 28 preferably in an inert atmosphere. The welding process may be performed by D.C. arcs from contact 30 or R.F. types of welding from sliding contacts. During welding, the cable lies at the bottom of the sheath and is subsequently centralized therein by the corrugations. Unbonded strips 22 between the tapes 14, 15, 18 allow for electrical contact between the steel and aluminium tapes 10, 12.
Patent GB-777508-A (GB)
Title: The manufacture of ketones and a catalyst therefor
IPC: B01J23/72
Filed: 1955-02-25
Abstract: Di-isobutyl ketone, methyl-isobutyl ketone, or a mixture thereof, is prepared by passing isopropanol vapour at about 250-350 DEG  C. over a catalyst comprising copper, magnesium oxide, and a dehydration catalyst of which at least two-thirds is pumice; the weight ratio between copper, as CuO, and magnesium oxide is from about 5 : 1 to 0.5 : 1 and the weight ratio between copper, as CuO, and the total of magnesium oxide and the dehydration catalyst is from about 4 : 1 to 1 : 4.  The dehydration catalyst component may also contain one or more of the compounds aluminium oxide, titanium oxide, aluminium phosphate, zinc oxide, thorium oxide, and sodium chromate.  The reaction may be carried out at reduced, increased, or atmospheric pressure.  It is desirable to use isopropanol of above 80 per cent concentration.  Acetone is also formed in the reaction, the amount increasing with increasing operation time of the catalyst.  The ketone in the product may be separated by addition of water and fractional distillation.  When di-isobutyl ketone is required, the catalyst should be regenerated more frequently than when methyl iso-butyl ketone is required.ALSO:A catalyst for the manufacture of diisobutyl ketone and methyl-isobutyl ketone from isopropanol (see Group IV(b)) comprises copper, magnesium oxide, and a dehydration catalyst of which at least two-thirds is pumice, the weight ratio between copper, as CuO, and magnesium oxide being from about 5:1 to 0.5:1 and the weight ratio between copper, as CuO, and the total of magnesium oxide and the dehydration catalyst being from about 4:1 to 1:4.  The dehydration catalyst component may also contain one or more of the compounds aluminium oxide, titanium oxide, aluminium phosphate, zinc oxide, thorium oxide, and sodium chromate.  To prepare the catalyst, a copper oxide or hydroxide may be briquetted with magnesium oxide, the dehydration catalyst, and a combustible binder, e.g. an aqueous solution of methyl cellulose; the briquettes may be dried at 100 DEG C. baked at above 600 DEG C., and activated with steam at 400 DEG -500 DEG C.  Reduction of the copper oxide is effected at the start of the reaction or by treatment wih hdrogen a 200 DEG -300 DEG C.  Magnesium hydroxide or basic carbonate may be used in the preparation of the catalyst, yielding a highly voluminous oxide.  Another method of preparation is coprecipitation of compounds of copper and magnesium in the presence of pumice, followed by drying and baking.  The catalyst can be regenerated by oxidation with air, first at 200 DEG -250 DEG C. and then at 400 DEG -500 DEG C., followed by treatment with steam and hydrogen, as in the preparation of the catalyst.
Patent GB-1572964-A (GB)
Title: Foot disinfection appliance
IPC: A47L23/26
Filed: 1978-02-14
Abstract: The carpet comprises two plasticised PVC films (1, 2) which are mutually connected on a circumferential edge (7). A welded-in foam (4) is located between the films (1, 2) as a carrier material for a disinfectant. The disinfectant is replenished from the outside through a PVC hose (3) which is provided inside the carpet with a few holes through which the disinfectant penetrates the foam. The body weight causes the foam composition to be compressed and the disinfectant to be driven through the holes to the surface of the carpet, thus disinfecting the feet. <IMAGE>