baber/WOPTO huggingface dataset:
Patent GB-1112837-A (GB)
Title: Process for the preparation of cycloalkanols and mixtures of cycloalkanols and cycloalkanones
IPC: C07C45/53
Filed: 1967-04-20
Abstract: Cycloalkanols and mixtures thereof with cycloalkanones are prepared by hydrogenating hydroperoxides, e.g. cyclohexane hydroperoxide in the presence of a hydrogenation catalyst carried on a neutral or acid support, e.g. palladium deposited on silica, alumina or alumino silicate support and more than one molecular proportion of water per molecular proportion of hydroperoxide. The hydrogenation is preferably effected at 80 DEG  to 130 DEG  C. and at hydrogen pressure of 10 to 20 bars.  The starting material is obtained by oxidation of cycloalkanes.  Examples of the preparation of cyclohexanol and cyclohexanone are given.
Patent GB-456592-A (GB)
Title: Improvements in and relating to ventilating systems
IPC: F24F3/044
Filed: 1935-06-27
Abstract: 456,592. Refrigerating. METROPOLITAN - VICKERS ELECTRICAL CO., Ltd., 1, Kingsway, London.-(Smith, D. M.; c/o Metropolitan -Vickers Electrical Export Co., Ltd., P.O. Box 3633, Johannesburg, South Africa) June 27, 1935, No. 18431. [Class 29] Cold air and like machines.- In an aircooling and ventilating system, particularly for mines, the air from the locality is used as the working medium in a refrigerating- machine operated by a fluid motor in which air under pressure is expanded. The exhaust air from the motor is passed to the locality, whereby the cooling effect from the expansion of the air is added to the cooling effect obtained by the refrigerating machine. A primary stream of compressed air from pipe 1 drives a turbine 2 to the wheel 3 of which is coupled a compressor 4 which draws air from the locality to be cooled through a pipe 6. The compressed air is passed through a cooler 8 and by pipe 10 to the turbine 2. This secondary air stream propels the rotor 3, and, after expansion is mixed with the primary air, and flows along pipe 13, at a temperature somewhat above freezing point, to a circulator 14 which aspirates a tertiary stream of air from the locality, and mixes it with the cooled air, the resultant mixture being passed through a fog extractor 18 containing thin plates, or fibrous material, before being returned through outlet 20 to the locality. In modifications, the turbine may be provided with two rotor elements, the expansion of the pressure air being effected in two stages, and one or more heat-exchangers may be used between the cooled air, and the air from the locality with which it is to be mixed. In Fig. 8, the compressed air from the cooler 8 passes direct to a circulator 64 which draws air from the locality by a pipe 65 through a heat-exchanger 66, the cooled expanded air from the turbine 2 passing by a pipe 63 through the heat exchanger 66, and pipe 69, to mix with the air from the circulator 64.
Patent GB-152449-A (GB)
Title: Improvements in the propulsion of ships, aircraft and the like
IPC: B63H11/00
Filed: 1919-07-25
Abstract: 152,449. Hotchkiss, D. V. July 25, 1919. Propelling.-Aircraft or ships are propelled by a fluid jet which is drawn into a casing through inlet openings on either side, converted into a controlled vortex, and discharged as a single jet between the two inlet streams. As applied to water craft, a drum b is fitted to the bottom a of a ship so that part projects downwards into the water. The drum contains an impeller having four blades m mounted on a shaft l, and part of the periphery of the drum is removed to form an outlet opening k. Inlet openings j are provided in the sides between the centre and the circumference, or the openings may be merged into a single opening by cutting away the sides as shown at j<1> , j<2>. To reverse the direction of propulsion without reversing the movement of the blades m a duct c is provided in the front of the drum, and a concentric drum h may be provided with bevelgearing q by which it is turned so that the opening o registers with the outlet c. The inlet openings i are sufficiently large to cover the openings j in the outer casing in any position of the drum. In a modification, Fig. 5, the drum b is provided with inclined intakes n<1> one at each side communicating with the interior bv openings t. The outlet is formed by a curved enlargement of the drum b<5>. A casing x is arranged below the drum with an opening x<2> which is controlled by a reversing-slide u having two curved faces u<1>, u<2>. The slide is moved by a lever v acting through links v<1>, v<2> so that the discharge may be directed either ahead or astern. The blades m of the impeller may be curved.
Patent GB-112292-A (GB)
Title: Improvements in or relating to Rotary Pumps and the like.
Inventor: LOLE ALFRED ERNEST
IPC: F04D29/42
Filed: 1916-12-29
Abstract: 112,292. Lole, A. E. Dec. 29, 1916. Casings.-Relates to centrifugal pumps of the kind provided with a V-shaped opening G which forms a continuation of the main discharge opening C and ensures a gradual cut-off, and consists in forming the casing concentric with the impeller from the point b to the point c, or for about one-sixth of its circumference, and then gradually increasing its radius to the outlet. In a pump of the Leblanc type, Figs. 5, 6, and 7, wherein the air is extracted by the ejector action of water, the discharge opening H is reduced by a wall J having a V-shaped opening J<1> disposed as described above to ensure a gradual cut-off, and the water outlet L may be provided with a corresponding continuation opening L'.
Patent GB-294877-A (GB)
IPC: H04R11/00
Filed: 1928-06-28
Abstract: 294,877. Kunze, W., and Radiofrequenz Ges. July 30, 1927, [Convention date]. Magnetic instruments.-An actuating device for a loud-speaker comprises a reed, one end of which is clamped whilst its other end is adapted to vibrate between magnet pole-pieces, one or both of which carry the actuating coils, the reed being coupled to an external non-magnetic bridge member which is supported at both ends. Fig. 1 shows a construction in which a reed B is clamped at one end between horseshoe magnets A, its other end being adapted to vibrate between the magnet pole-pieces C which carry coils D. A rod F, carrying at its outer end a conical diaphragm Q, connects the reed with a non-magnetic bridge E placed across the limbs of the magnets. In the modified construction, Fig. 2, one of the pole-pieces J is made larger so as to carry the coils H, accurate adjustment of the reed L in the gap between the polepieces J, K being effected by means of a screw N. The tension of the non-magnetic bridge O can be adjusted by means of a screw P so as to vary the pitch of the loud-speaker.
Patent GB-1507707-A (GB)
Title: Gradient sensor
IPC: G01B7/16
Filed: 1975-05-05
Abstract: 1507707 Thermal or strain gradient sensor MINNESOTA MINING & MFG CO 5 May 1975 [6 May 1974 (2)] 18773/75 Heading H1K A sensor for detecting and producing a remanent electrostatic image of the temperature or strain gradient of a body surface comprises a sheet of material which has been formed into an electret with pyro- and piezo-electric properties, the surface of the sheet to be brought into contact with the body surface being coated with electrically and thermally conductive material. After sufficient contact time, both surfaces of the sheet are electrically neutralized, then removed from the body surface. As the sheet returns to ambient temperature or its normal configuration, a substantially per. manent charge pattern re-forms, which may be developed using toner particles or electrically recorded, alternatively the charge pattern may be detected in situ. To avoid spurious piezoelectric effects, the sheet may consist of two sheets bonded together by adhesive providing a sufficiently stiff interface, the sheets being poled in the same direction.
Patent GB-653579-A (GB)
Title: Fluid operated clutch and brake mechanism
IPC: F16D67/04
Filed: 1948-07-13
Abstract: 653,579. Brakes. CLEVELAND PUNCH & SHEAR WORKS CO. July 13, 1948, No. 18821. Convention date, Aug. 13, 1947. [Class 103 (i)] [Also in Group XXIV] Combined clutch and brake mechanism for power presses and other machines comprises curved shoes 10 freely mounted on eccentrics 21 secured to levers 28 keyed on pins 23 pivotally mounted on a member 20 secured on the driven shaft 2, each shoe having an inner clutch facing 19 co-operating with the outer periphery of a driving fly-wheel 6 and an outer brake facing 191 co-operating with the interior surface of a stationary drum 15. The shoes are moved inwardly for clutching by fluid-operated pistons 34 acting through links on one end of the levers 28 and are moved outwardly for braking by springs 39 acting on the other end of the levers 28. The springs 39 are guided on rods 47 provided with adjustable stops 50 to limit the spring expansion. Weights 51 secured to the pins 23 partially counteract the centrifugal action of the shoes.
Patent GB-744092-A (GB)
Title: Improvements relating to protective aprons
Inventor: ROTHBAND BARON HAROLD
IPC: A41D13/04
Filed: 1953-07-09
Abstract: 744,092. Protective apron. ROTHBAND & CO.; Ltd., W. S. May 27, 1954 [July 9, 1953], No. 19047/53. Class 141. A protective apron made of lead and rubber sheet adapted to absorb X-rays has a back part 1 and a front part 2 joined together by a part 3 over the right shoulder, and strips 4, 5 which overlap on the left shoulder and are secured by press fasteners 6. The parts 1, 2 are also fastened at the sides by straps 7 with press fasteners.
Patent GB-477907-A (GB)
Title: Improvements in or relating to poppet-valves
IPC: F01L3/14
Filed: 1936-07-09
Abstract: 477,907. Valves. WESLAKE, H. July 9, 1936, No. 19057. [Class 7 (vi)] In poppet valves in which the stem is provided with a core of good thermal conductivity having an enlarged head which is retained within a recess in the valve head bv a steel plate secured to the valve head, this retaining-plate is united with the head of the core by soldering, brazing, or welding, in order to effect a more rapid transference of the heat from the valve head The Figure shows a valve with a core 15 of copper having a head 17, to which the retaining-plate 18 is united by soldering &c. The core is formed with a longitudinal slot 19, and a gap is left at 21, to allow for expansion. The plate 18 is formed with an iron spindle 16 which is a snug fit within the core. In a modification, the core consists of copper tubing flared at its upper end to correspond to the shape of the valve, and the retaining - plate is united to the core along the flared portion. In another form, the spindle 16 is omitted, and the core partially filled with a salt or material which becomes liquid when heated, such as sodium nitrate or metallic sodium. The core head and the recess in the valve may be undercut so that they contact only over a narrow surface when cold. Specification 448,463 is referred to.
Patent GB-419762-A (GB)
Title: Improvements relating to electromotors such as those used to drive apparatus in telephone and like systems
IPC: H04M19/02
Filed: 1933-07-05
Abstract: 419,762. Automatic exchange systems. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, HUMPHRIES, H. E., 61, Rochester Way, Blackheath, both in London. July 5, 1933, No. 19066. [Class 40 (iv).] Two or more switches of the kind described in Specification 388,173, in which a switching- device on the rotor of an electric motor successively energizes a series of stator coils to produce a rotating magnetic field, are driven in synchronism by connecting corresponding coils of the stators DMA, DMB in parallel, and corresponding contacts of the switching-devices dma, dmb in parallel. The latch magnets LMA, LMB are also in parallel and both must be operated before the supply circuit to the motors is closed.
Patent GB-432240-A (GB)
Title: Improvements relating to screening appliances for coal and the like
IPC: B07B13/00
Filed: 1934-06-29
Abstract: 432,240. Sifting-apparatus. THOMAS, G. E. A., and EMLYN ANTHRACITE COLLIERY, Ltd., 10, Adelaide Street, Swansea. June 29, 1934, No. 19227. [Class 117] A screening device, particularly for coal, consists of overlapping rockable plates which are movable to a limited extent in the direction of flow of the material. In the form shown, each plate 1 has a transverse angle iron 7 near the ends of the webs of which are slots engaging pins 13 supported at each side of the channel 2 in which the plates are disposed. These slots and the pins 13 are so arranged as to permit the plates 1 to tilt and to move longitudinally, their movement being limited by pegs or by recesses 8 in a plate extending along each side of the channel. Thin material passes between the plates to the bottom of the channel while lumps of coal pass from plate to plate to a screen 17 and thence to a conveyer.
Patent GB-275786-A (GB)
Title: Improvements in door and window holders or stops
IPC: E05F11/00
Filed: 1926-08-04
Abstract: 275,786. Nissen, J. H. Aug. 4, 1926. Door-hohlers; stops. - A device to serve as a buffer stop or holder for a door or window comprises a casing 1 into the open end of which is adjustably screwed a sleeve 2 with attachment flanges 4, a buffer piston 6 being retained within the sleeve by a head 7 on opposite sides of which are positioned the springs 8, 9. When the door or the hinged window is opened or closed the piston engages an inclined recess 10<a> in a fixed plate 10, and the door or window is checked and slamming avoided.
Patent GB-348936-A (GB)
Title: Improvements in and relating to work setting devices for screwing and like operations
IPC: B23G7/00
Filed: 1930-06-25
Abstract: 348,936. Screwing and tapping. WALLIS, B. N., of Vickers (Aviation), Ltd., Byfleet Road, Weybridge, Surrey. June 25, 1930, No. 19347. [Class 83 (iii).] In screw-threading the internal flanges 1a of strengthening sleeves 1 for tubular structures, particularly for aircraft, such as are described in Specification 341,937, and which have the flanges arranged at various angles to the axes of the sleeves, the sleeves are positioned on a templet 45 by means of a support 47 located within an aperture 46 in the templet and having secured thereto a cylindrical member 471 to which is freely pivoted a second cylindrical member 49 engaging the interior of the sleeve. After positioning, the sleeves are clamped to the templet by a cap 52 and two bolts 53, the members 47, 47<1>, 49 are removed, and the sleeves are then tapped at 1b perpendicular to the flange. If the flanges of two sleeves 1 are to be secured directly together in a structure the centres of the pivots 50 are arranged in the surface of the templet, but if members are to be secured between the flanges, packing pieces 51 of half the thickness of the intervening members are placed between the support 47 and the templet.
Patent GB-833236-A (GB)
Title: Sintered hard metal alloy
IPC: C22C29/00
Filed: 1956-06-22
Abstract: A sintered hard metal alloy contains 18-26% of titanium carbide, 8-24% of tantalum carbide and/or niobium carbide and 8.5-12% of cobalt, nickel and/or iron as binder metal, the remainder being tungsten carbide and normal impurities and insignificant amounts of other usual components such as molybdenum carbide, the amounts of beta phase (binder metal) and gamma phase (solid solution of the carbides of tungsten, niobium and tantalum in titanium carbide) being related as follows-100-1.2 times the beta phase is greater than the gamma phase, and the gamma phase is greater than 100-2.5 times the beta phase, the expressions gamma phase and beta phase representing the amounts of those phases in volume per cent.  In preparing the alloy titanium carbide may be used as the double carbide with tungsten carbide.  Other carbides can be used in the form of solid solutions.  The carbides and binder metal are ground to a grain size of 2-3 microns, pressed, and sintered in a vacuum at about 1500 DEG C. for about one hour.
Patent GB-646930-A (GB)
Title: Improvements in and relating to the stiffening of wool fabrics
IPC: D06M17/02
Filed: 1947-07-21
Abstract: 646,930. Fabrics for stiffening garments. TRUBENISED, Ltd., and HIGGINS, E. July 21, 1947. No. 19473. [Class 142(iv)] [Also in Group VIII] An interlining or backing for stiffening wool garments comprises woollen yarns and thermoplastic yarns of the same size, the weave being sufficiently open as to preserve permeability after amalgamation with a garment. There may be 32 ends and picks per inch, the warp being two 2/130 den. Cellulose acetate threads (woven 3-up 1-down) alternating with two woollen threads (woven plain), or one acetate alternating with one woollen (both woven plain), the weft and the selvedges in either case being all woollen; or the warp may be all woollen with a weft of two acetate (woven plain or 3-up 1-down) alternating with two woollen, woven plain.
Patent GB-682182-A (GB)
Title: Shrinkless seams and method of making same
IPC: D05B93/00
Filed: 1949-07-25
Abstract: 682,182. Sewing. CLUETT, PEABODY & CO., Inc. Dec. 16, 1949 [July 25, 1949], No. 19498/49. Drawings to Specification. Class 112. [Also in Group IX] In order to prevent " stitch puckering " and to reduce seam shrinkage in stitched fabrics, sewing threads are employed having a component soluble in the usual washing solutions and an insoluble component, so that the soluble component may be dissolved out, thus allowing the insoluble component to straighten and accommodate swelled yarns of the fabric enclosed in each stitch. The composite threads may be used for the bobbin threads, or the shuttle threads, or both in standard sewing machines. The soluble component may be in staple or filament form and may be formed of water soluble polyvinyl alcohol, sodium or potassium alginate rayons, the sodium salt of carboxymethyl cellulose, or water soluble polymethacrylic acid or polyacrylic acid. As insoluble components may be used nylon, polyethylene terephthalate, polyacrylonitrile, cellulose rayons, cottons, flax, ramie, jute, silk, or wool. In an example, three layers of cotton fabric that had been previously shrunk to less than 1 per cent residual shrinkage were sewn together with a composite thread consisting of a 200 denier polyvinyl alcohol ply thread upon which was wound a 70s/2 cotton sewing thread with a 6 per cent overfeed. The seam shrinkage after three washings was 0.2 per cent. Other examples using a variety of combinations of soluble and insoluble threads are given, illustrating the low seam shrinkages obtained after washing. Specification 550,525, [Group IX], is referred to.
Patent GB-930426-A (GB)
Title: Improvements relating to holders for electric devices such as lamps
Inventor: BENFORD ALAN ERIC
IPC: H01R33/09
Filed: 1961-05-30
Abstract: 930,426. Lamp-holders. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 30, 1962 [May 30, 1961], No. 19499/61. Addition to 865,868. Class 38 (1). A lamp-holder of the type disclosed in the parent Specification has the spring contact making members formed with open-ended tubular extensions for receiving ferrules on the supply conductors. Two spring contacts, as shown in Fig. 3, fit in recesses in the moulded body 1 (Fig. 1) and their ends 14 are opened into enlarged recesses at the rear of the body. The resilience of the tubular portions may be increased by slots 12, 13. The body 1 has grooves 17 enabling it to slide in a fixing bracket (Fig. 4, not shown). Specifications 797,441 and 806,666 also are referred to.
Patent GB-760227-A (GB)
Title: Improvements in or relating to pit props
Inventor: BRUCKSHAW HERBERT STANLEY
IPC: E21D15/51
Filed: 1953-07-14
Abstract: 760,227. Hydraulic pit props. COAL INDUSTRY (PATENTS). Ltd. Oct. 14, 1954 [July 14, 1953], No. 19534/53. Class 20(2) [Also in Group XXIX] A hydraulic pit prop is provided with a single valve unit having an inlet chamber 14 connected to the working chamber of the pit prop and an outlet chamber 12 connected to the reservoir of the pit prop and containing both relief and release valves each controlling a separate orifice for the transfer of liquid from the inlet chamber 14 to the outlet chamber 12. The chambers 14, 12, are formed in a valve body 10 which extends diametrically across the reservoir passing through holes in its walls 11, the chamber 14 communicating with the reservoir through a port 13 and the chamber 12 communicating with the working chamber of the pit prop through a conduit 15. The release valve consists of a valve plunger 20 having a frusto-conical surface 21 which engages a valve seat 22 in the body 10 and is normally held against the seat 22 by the pressure of liquid acting on an enlarged part of the plunger at the seat 22 and by a spring 24. The plunger 20 is connected to a handle 35 which is pulled to release the prop. The plunger 20 is held in the released position by the engagement within an annular groove 34 in a screwthreaded valve retaining plug 17 of a spring-loaded detent ball 32 carried by the plunger 20. The relief valve consists of a ball valve 29 urged by a spring 30 against a seat 28 in a passage 27 in the plunger 20 connecting radial bores 25, 26 opening into the chambers 12 and 14.
Patent GB-187041-A (GB)
Title: Improvements in machines for winding lengths of material into rolls
IPC: B65H23/195
Filed: 1921-07-21
Abstract: 187,041. Holdsworth, G. B., and Hirst, V. July 21, 1921. Winding and registering webs.-In a machine for winding lengths of material, such as cloth, paper, yarn, &c., in which the receiving-mandrel is driven through a friction clutch to compensate for variation in speed as the material accumulates on the mandrel, the material E, Fig. 1, having passed between delivery or measuring rollers A, A<1>, is passed under a rod c, which controls the clutch C through a link-and-lever arrangement c<2>, c<5>, as shown in Fig. 3. The driven member of the clutch C drives the mandrel pulley b<2> by a belt b'. The cloth &c. after leaving the control rod c may pass over two tension rods e<1>, e<2> and be attached to the mandrel. In operation, after the mandrel roll has attained the same diameter as the measuring-rollers, it is continually attempting to gain on the latter, so that the pull on the material keeps lifting the rod c, which allows the clutch to slip sufficiently to ensure uniform surface speed. The invention is shown as applied to the machine described in Specification 111,009, [Class 100 (ii), Printing processes &c.].
Patent GB-605574-A (GB)
Title: Improvements in or relating to lint collection in clothes driers
IPC: D06F58/22
Filed: 1945-07-31
Abstract: 605,574. Rotary clothes-drying machines. LOVELL MANUFACTURING CO. July 31 1945, No. 19657. Convention date, July 31, 1944. [Class 34(ii)) Apparatus for drying linen &c. of the kind comprising a perforate tumbler 8 through which hot air from a heater 24 is continuously circulated by a fan 30, is provided with air filtering screens 35, 36, for collecting lint &c. at the air outlet. A by-pass outlet 38 is also provided for the air when the filter screens 35, 36 become choked. A deflector 41 prevents the lint &c. being carried into the bypass 38 when the filters 35, 36, are functioning normally. Air from the tumbler is withdrawn by the fan 30 by means of a trough 27 diametrically opposite the heater 24 and connected to the inlet side 29 of the fan. Specification 605,613 is referred to.
Patent GB-801946-A (GB)
Title: Improvements relating to waterproof outer garments
Inventor: LEE CYRIL JOHN
IPC: A41D3/04
Filed: 1956-06-26
Abstract: 801,946. Raincoats. LEE BROS. (OVERWEAR), Ltd. May 23, 1957 [June 26, 1956], No. 19731/56. Class 141 A waterproof coat 1 has a lining 2 of textile material and an interlining 3 of polyurethane foam sheet. The interlining is attached to the coat down the centre of the back and around the top of the back.
Patent GB-1122348-A (GB)
Title: Improvements in or relating to refrigeration compressors
IPC: F25B31/02
Filed: 1967-04-28
Abstract: 1,122,348. Connecting-rods. R. CULK. 28 April, 1967 [26 May, 1966], No. 19740/67. Heading F2T. [Also in Division F1 In a refrigeration compressor with radial pistons 5 in which the sliding shoes 4 of the connecting rods 3 are secured to the crank-pin 2 by rings 11, the rings 11 are located on the shoes by retaining discs 10 secured, as by screws 13, to the crank-pin. The balance weight 12 is secured to the upper disc 10.