baber/WOPTO huggingface dataset:
Patent GB-459070-A (GB)
Title: Improvements in television receiving systems
IPC: H03F1/50
Filed: 1935-06-26
Abstract: 459,070. Wireless receiving-apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, KINMAN, T. H., Ladbroke House, Bilton Road, Rugby, and WATSON, D. S., St. Ninian's Manse, Oyne, Aberdeenshire. June 26, 1935, No. 18335. [Class 40 (v)] In a superheterodyne television and accompanying sound receiver employing a single local oscillator to obtain two intermediate heat frequencies, a common intermediate frequency amplifier having a plurality of stages is used. The Figure shows a two-stage amplifier V2, V3, the output being fed to separate sound and vision amplifiers V8, V5, with selective couplings 9, 6 to the sound detector V9 and the push-pull vision detector V6, V7. The common intermediate frequency amplifier may be resistance capacity coupled and discrimination against high frequencies may be avoided by neutralizing as described in Specification 419,914. Alternatively, the tuned circuits in the common intermediate frequency amplifier have response curves of the double humped type, the response curves of successive stages being staggered to give an overall response uniform throughout the band covered by the sound and vision carrier waves and their sidebands. Specifications 392,456 and 435,682 also are referred to. Reference has been directed by the Comptroller to Specifications 449,205, 451,670, and 453,484.
Patent GB-214887-A (GB)
Title: An apparatus for the administration of a gaseous element or the like
IPC: A61M16/18
Filed: 1923-07-16
Abstract: 214,887. Marks, E. C. R., (Ross, D. R., and Voss, J. D.). July 16, 1923. Respirators; respiration, appliances for promoting.-In an apparatus for intermittently supplying anµsthetic or resuscitating gases to amask, the intermittent delivery of the gas is effected by means of a device, as shown in Fig. 1, comprising a casing 1 in which are mounted spindles 5, 6, the latter spindle carrying a turbine wheel 10 and a pinion 13 which meshes with a wheel 14 of greater diameter on the spindle 5. The spindle. 5 also carries an eccentric 15 by which is operated a slide-valve 18 which alternately uncovers and blocks a port leading to the outlet pipe 22. Gas enters the chamber through the jet 12, operates the turbine 10, and leaves the chamber in pulsations as the port leading to the outlet 22 is uncovered. The pipe 22 is in communication with a mask 26 which, as shown in Figs. 2 and 3, has a separate dome 25 enclosing a flexible bag 24 communicating with the main portion of the mask by an outlet 27. The bag 24 carries on its upper surface an arm 29, 30 to which is secured a cover 31 for the outlet 32<a> in the side of the mask. When the bag 24 is filled, the cover 31 closes the outlet 32<a>; when the bag is deflated, owing to the patient's breathing, the arm 29, 30 raises the cover 31 and uncovers the outlet 32<a> to allow the exhaled air to escape. The arrangement is such that the bag 24 is alternately inflated and deflated, and the cover 31 alternately lowered and raised. The mask may further be provided with means for administering a non- volatile substance, such as glycerine, such means comprising, as shown in Fig. 9, a gauze frame 53 secured to the inside of the mask and adapted to be flooded with the substance from a vessel 51. If it is desired to mix a volatile anµsthetic with the gas to be administered, a mixing vessel, into which the anµsthetic is dropped from a sight-feed device, is interposed between the casing 1 and the mask.
Patent GB-573321-A (GB)
Title: Improvements in or relating to cooling towers
IPC: F28C1/02
Filed: 1943-11-05
Abstract: 573,321. Cooling- towers. MITCHELL, F. G Nov. 5, 1943, No. 18419. [Class 64 (i)] In a cooling-tower comprising a vertical hollow shell in the lower part of which is an open framework over which warm water or other liquid falls and is cooled by air entering through apertures 16 near the bottom of the tower and rising under natural draught, air admission pipes 21, 22 of two or more lengths extending radially inwards from the apertures 16 and opening into the bottom of the tower at various distances from its side walls have provision such as openings 28 for the escape of air between their ends. All the air entering the tower may pass through the pipes, or part may enter the tower directly, above the tops of the pipes.
Patent GB-293038-A (GB)
Title: Improvements in or relating to colour photography
IPC: G03C7/00
Filed: 1928-06-25
Abstract: 293,038. Gorsky, S. de Procaudine-, (Assignee of Audibert, M.). June 30, 1927, [Convention date]. Colour photography; dye-toning.-Each of the component colour-record positive images which are superimposed to produce a multi-colour photograph is coloured by immersion first in a solution of iodine to convert the metallic silver of the image completely into silver iodide, and then in a stable bath containing both a basic aniline dyestuff of the appropriate colour and also sodium thiosulphate, whereby a partially tanned image in coloured gelatin free from silver results. The silver images to be so treated are produced preferably by development with a tanning developer, such as pyrogallic acid. A solution of excess iodine in potassium iodide solution may be used as the first bath. The density of the colouring may be controlled during the colouring step either by varying the temperature of the bath or by altering the proportion of thiosulphate; and too great density may be corrected after the colouring step by prolonged washing in water. The colour is finally fixed in a tannin bath. Colouring baths for red, yellow, and blue images are detailed in the Specification.
Patent GB-702860-A (GB)
Title: Improvements in and relating to phosphate fertilizers
Inventor: HUDSON JOHN HERBERT
IPC: C05B11/06
Filed: 1951-08-07
Abstract: <PICT:0702860/III/1> Granular compound phosphate fertiliser is produced by reacting ground mineral rock phosphate with insufficient nitric acid for complete conversion to monocalcium phosphate, the reaction being carried out in two stages in one of which ammonium sulphate is added, the first stage, during which all the acid is added, being not longer than 2 minutes with rapid mixing and the second being for 12 to 25 minutes with moderate agitation; then adding with continued mixing over a period of 10 minutes, aqueous ammonia sufficient to convert all the monocalcium phosphate to dicalcium phosphate while maintaining the temperature not higher than 70 DEG C. adding with continued mixing, dried final product sufficient to give the mixture a water content of 6 to 12 per cent., and passing the mixture to a rotary drier where granulation is completed and the granules are dried in countercurrent so that their temperature leaving the drier is not higher than 100 DEG C.  The granules, preferably after cooling to room temperature, are screened and the fines, together with the crushed oversize granules, are recycled.  In the drawing, rock phosphate, ground to 295m  or less, is added to a paddle mixer 2 together with nitric acid of 45 to 65 per cent. strength sufficient to give a 55 to 96 per cent. conversion added from pipe 3.  Ammonium sulphate which may be dissolved in the nitric acid, can be added in this stage but it is preferred to add it in the second stage of the acid reaction through line 5 in the next mixer 4 which is preferably a screw mixer.  The amount of ammonium sulphate added is not less than that required to convert the calcium nitrate which would otherwise remain after ammonification, into calcium sulphate and ammonium nitrate.  The mixture then passes to a mixer 6 where aqueous ammonia of 20 to 40 per cent. strength is added from pipe 7 and the reaction mass is maintained at 50 to 60 DEG C., and thence to a mixer 8 where dried product constituting 1 to 4 times the weight of the material fed to the process is added at 9. The partially granulated mixture then passes to the rotary granulator and drier 10.  Muriate of potash may be added after ammoniation for example in the mixer 8 before adding the recycled dried product. Specification 697,019 is referred to.
Patent GB-591785-A (GB)
Title: Improvements in camera obscuras
IPC: G02B27/06
Filed: 1944-09-29
Abstract: 591,785. Camera obscuras. BATHURST, C. Sept. 29, 1944, No. 18653. [Class 97 (i)] The camera consists of a scanning unit A with field aperture 3a, mirror 4, and lens 7, combined with an observation unit B with means 12 for viewing the image projected by the lens 7 on to a screen by way of a mirror 11, unit A being mounted at 5 on unit B and rotatable thereon, as by operating a handle 5a. In the form shown, the housings of both units are cylindrical, and the screen 15 of semicircular section is situated on a side wall opposite the viewing aperture 12, which is fitted with a resilient hood 13 and protected from stray light by a shield 14. The mirror 11 is supported by a frame 10 depending from the turntable 9 of the scanning unit A, and the angular adjustment of this unit is limited by a pin and arcuate slot device associated with the turntable. The roof 6a of unit B is detachable.
Patent GB-476792-A (GB)
Title: Improvements relating to the electric transmission of intelligence
IPC: H04B3/32
Filed: 1937-07-05
Abstract: 476,792. Preventing inductive disturbance. ALLGEMEINE ELEKTRICITATSGES. July 5, 1937, No. 18686. Convention date, July 4, 1936. Drawings to Specification. [Class 40 (iv)] In systems in which carrier signals are transmitted over multi-core cables, the magnetic coupling between separate circuits increases with frequency up to about 25 kc. and thereafter remains almost constant and the invention consists in balancing the magnetic coupling at this limiting value and fixing 25 kc. as the lower limit of the frequences used for transmission. In cases in which the magnetic coupling has a real component which varies somewhat with frequency, this is balanced at the value it has in the middle of the frequency range employed.
Patent GB-530657-A (GB)
Title: Improvements in or relating to electric control systems for direct current motors
IPC: H02P7/288
Filed: 1939-06-28
Abstract: 530,657. Master control of D.C. motors. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. June 28, 1939, No. 18781. Convention date, June 28, 1938. [Class 38 (iii)] Sequentially operated contactors R2 .. R5 are maintained closed by series coils in circuit with their main contacts, e.g. coil 61 on contactor R2. A variable resistor VR is first excluded whilst in series with a resistor R and thereafter is re-excluded whilst in parallel with the resistor R. Movement of a master controller MC to position " C " causes line switches LS1, LS2 and contactor R1 to close. Thereafter contactors R2 .. R5 close in sequence under control of limit relay LR, each preparing the circuit for the closing coil of the next. After R5 has closed R6 closes, whereupon R2 .. R5 open, as their series holding coils are shorted by the main contacts of R6 and R1 also opens. Then R7 closes to place resistors VR and R in parallel. Contactors R2.. R5 again close sequentially and then R1 recloses to give a direct feed to the motor through the contacts of R6, R1 and R7. Finally, a field contactor F closes to connect a reactor 108 in parallel with the motor field.
Patent GB-227746-A (GB)
Title: Improvements in hair pins
IPC: A45D8/08
Filed: 1924-08-07
Abstract: 227,746. Quinn, E., and Pawlick, J. Aug. 7, 1924. Hair-pins; hair-curling appliances. -A hair-pin is made with the legs twisted into helices 1 of small diameter and in the same direction in both legs so that the legs do not normally surround one another, and the helices are slightly staggered so t'hat the legs can be twisted together, as shown in Fig. 4, in order to use. the pin as a curler by inserting the hair between the legs before twisting. The relative longitudinal displacement of the helices is approximately equal to the thichness of the wire of which the pin is made. A loop may be formed at the closed end of the pin to give extra resilience.
Patent GB-154658-A (GB)
Title: An apparatus for treating carbonaceous material for the recovery of volatile hydrocarbon constituents
IPC: C10B1/04
Filed: 1919-07-29
Abstract: 154,658. Bussey, C. C. July 29, 1919. Charging and discharging; indicators.-In a vertical internally-fired retort for use in the destructive distillation of coal, shale, and lignite, the charge is fed continuously and the coked product is discharged alternately in opposite directions. Grate bars 26 are supported by beams 25 above a collecting-hopper 55, and are traversed by a reciprocating ejector bar 42 which, alternately, discharges the coke through the open spaces 27 on either side of the grate. The bar 42 may be water-cooled, and its projecting ends are supported by carriages mounted to slide in guide-ways on the exterior of the setting 20; a feed-screw engages each carriage to enable its reciprocation to be effected, and the driving means may include a fly-wheel. The retort is fitted with a fuel-level indicator comprising an arm resting on the fuel and connected to a rockshaft carrying a pointer.
Patent GB-242007-A (GB)
Title: Improvements in or relating to power looms
IPC: D03D31/00
Filed: 1924-08-08
Abstract: 242,007. Pizzorno, C. Aug. 8, 1924. Swivel and smallware looms.-A jacquard loom is adapted for the porduction of brocades of the kind indicated in Fig. 15. A brocade batten comprising a bar 35, Fig. 7, is guided in its vertical movements by slots 36 in the bar engaging studs 38 mounted on a support 39. On the bar 35 are fitted segments 43, Fig. 8, on which are supported horse-shoe shaped sectors 45 by means of ring- shaped projections 46 and rings 47. The sectors 45 carry the bobbins 52. The sectors are turned by a rack 56 and, by the rotary movement thereof, in combination with the rising and falling of the brocade batten and the operation of the jacquard mechanism, the brocade pattern is produced. The reciprocation of the rack 56 is effected by a rod 57 a flier 58 swinging about a pivot 59 and operated from a cam 7 through a lever 69, rope 72, and ropes 78, 79. Brocades of two different colours may be produced by providing alternate bobbins 256, 261, Fig. 19 of different colours on a brocade batten mounted on balls 245, to-and-fro movement being imparted to the battens to bring the desired colour into operation, the unwanted colour running idle until shifted into working position.
Patent GB-455907-A (GB)
Title: Improvements in hose and like clips
IPC: F16L33/04
Filed: 1936-07-08
Abstract: 455,907. Hose clips. HUNT & TURNER, Ltd., and PRITCHARD, F., Alma Street, Aston, Birmingham. July 8, 1936, No. 18894. Addition to 409,109. [Class 44] In a band clip in which a screw operated claw j engages a rack member i as described in the parent Specification the rack is provided with a slot f or a hook in which one end of a strip or wire g is looped, the other end of the strip &c. g being looped to the frame c carrying the screw and claw. By selecting a suitable length of strip, the clip may be made adaptable for hose of any diameter. For very small diameters the arrangement shown in Fig. 5, in which one end of the strip g is looped to the inner end e or to an intermediate point of the screw housing may be adopted. Specification 447,963 is referred to.
Patent GB-732882-A (GB)
Title: Improvements relating to motor vehicle arm rests
Inventor: DANIELS WILLIAM JOHN
IPC: B60N2/75
Filed: 1953-07-08
Abstract: 732,882. Arm-rests; handles. MORRIS MOTORS, Ltd. June 21, 1954 [July 8, 1953], No. 18911/53. Classes 52 (1), 52 (2) and 52 (4). An arm rest mounted on a door or other body panelling comprises upper and lower parts A and B defining a slot E, which parts may be integrally or separately cast or pressed from metal, or moulded of plastic material, and if separately made, are fastened together as by welding for example. Padded material K may be placed in recesses J and on the top of the upper web C, the whole being covered by two pieces of material sewn together to provide a seam H accommodated in the slot E, the material being stuck down over the parts A and B and the padding.
Patent GB-304334-A (GB)
Title: Improvements in or relating to paints, particularly paints for the surface covering of thin rubber sheet material
IPC: C09D101/08
Filed: 1927-07-16
Abstract: 304,334. Schidrowitz, P., and Burke, D. J. July 16, 1927. Incorporating paint ingredients. - A paint, especially suitable for application to sheet material containing rubber, is produced by (a) dissolving a gum resin (e.g. wax-free shellac or a dammar resin) in a low-viscosity solution of nitrocellulose or cellulose acetate in a high boiling point solvent such as ethyl lactate or ethyl benzoate, and (b) mixing the solution with a colloidal solution of a pigment in a nondrying oil such as castor oil or a liquid plasticizer such as tricresyl-phosphate, the paste formed being subsequently thinned with a diluent composed of a liquid hydrocarbon such as toluene, or xylene and an alcohol such as amyl alcohol. The gum resin may be dissolved prior to admixture with the cellulose derivative solution in a solvent, such as amvl alcohol.
Patent GB-1431794-A (GB)
Title: Crystallized glass bodies
IPC: C03C10/00
Filed: 1973-04-19
Abstract: 1431794 Crystallized glass bodies NIPPON ELECTRIC GLASS CO Ltd 19 April 1973 19039/73 Heading C1M A crystallized glass body having a patterned surface is produced by: (a) forming a glass body with a projecting portion (11) from a crystallizable glass composition which is capable of being crystallized by heat treatment to precipitate needle-like crystals extending inwardly from the surface of the body in a direction substantially normal to the surface; and (b) subjecting the glass body to the heat treatment to form the crystals (the crystal orientation is generally represented in Fig. 4). The projection may subsequently be removed (e.g. by grinding) to leave a flat surface 1<SP>1</SP> (Fig. 6), in which the different crystal orientation exhibits a surface pattern. The crystallizable glass may consist essentially of, in weight per cent, SiO 2  40-75, Al 2 O 3  3-35 and CaO 15-40. The constituents may be heated at 1400-1550‹ C. to form molten glass, the glass being shaped and cooled, and then re-heated to 1000-1200‹ C. to crystallize the glass.
Patent GB-279932-A (GB)
Title: Improvements in or relating to the classification of powdered materials by elutriation
IPC: B04C3/00
Filed: 1926-07-30
Abstract: 279,932. Andrews, L. July 30, 1926. Actuating-mechanism. - In apparatus for dewatering a pulp of powdered materials, the coarse particles collect at the outlet 12a where they are discharged by means of an automatically operated valve 13, the operation of which is made to depend on the accumulation of solid material in the lower part of the vessel 10. For this purpose, the vessel 10 is surmounted by a chamber 31 in which is mounted a slowly rotating bevel gear 34 carrying cams 32, 33. A floating spindle 36, the lower end of which is guided in a slot in the upper end of the shaft 43 which carries blades 45 in the chamber 12, carries rollers 40 adapted to ride on the cams 32, 33. When there is little resistance to the rotation of the blades 45, the cams 32, 33, rollers 40, spindle 36 and blades 45 rotate slowly as a whole; but when coarse particles have collected in the chamber 12, the consequent resistance causes the rollers 40 to move up the cams 32, 33, thereby raising a lever 30 and opening the weighted valve 13 through an adjustable link 29. In a modified arrangement, Fig 12, the cams 32, 33 are carried by a worm wheel 46, and the rollers 40 are carried by a horizontal shaft 48 fixed to a floating spindle 49 in hole 50 in the shaft 36, vertical guide bars 53 and guide wheels 54 being provided. The central part of the shaft 48 engages through a ball 56 with an abutment 55 on the valve-operating lever 30. Specifications 280,121, [Class 82 (ii), Washing granular &c.], 280,122, and 280,123 are referred to.
Patent GB-516477-A (GB)
Title: Improvements in or relating to the production of aliphatic acids or esters
IPC: C07C51/12
Filed: 1938-06-27
Abstract: 516,477. Aliphatic acids and their derivatives. DU PONT DE NEMOURS & CO., E. I. June 27, 1938, No. 19057. Convention date, June 26, 1937. [Class 2 (iii)] Aliphatic acids or esters are made by subjecting -vaporized saturated aliphatic monohydric alcohol to the action of carbon monoxide in the presence of a catalyst comprising a complex compound of an inorganic acid, other than hydrofluoric acid, and a boron halide. The catalysts are preferably those obtained by treating phosphoric, sulphuric or hydrochloric acid with boron trifluoride, but boron chloride, bromide or iodide may also be used. The catalyst may be employed in conjunction with an absorbent material, e.g., pumice; silica gel, kieselguhr or activated charcoal, and temperatures of 150-400‹C. may be employed. The reaction is preferably carried out under a pressure of at least 25 atmospheres ; pressures up to 900 atmospheres may be used. As alcohols, methanol (which yields acetic acid or methyl acetate), and ethyl, propyl, butyl, and higher alcohol , including hexyl and octyl alcohols are specified; the main products are the acids having one more carbon atom than the initial alcohol. Instead of, or in addition to alcohols, alkyl ethers, esters or halides or olefines, e.g., ethylene, propylene, butylene, isobutylene or butadiene may be used as starting materials ; if olefines are employed, water vapour must be present. The acid may be obtained in the free state, or as an ester, anhydride, acid amide or acyl halide, depending on the nature of the starting materials. In examples, methanol, water vapour and carbon monoxide are heated under pressure with a phosphoric acid-boron trifluoride catalyst ; one chief product is acetic acid.
Patent GB-854617-A (GB)
Title: Improvements in or relating to the process of controlling catalytic cracking of diarylalkanes
IPC: C07C4/00
Filed: 1957-06-18
Abstract: Vinyl-substituted aromatic compounds are produced by the catalytic cracking of unsymmetrical diarylalkanes or their substituted derivatives in which the diarylalkane is preheated to a temperature close to but less than the decomposition temperature and introducing the diarylalkane together with a diluent stream having a temperature differing from the diarylalkane by not more than 100 DEG C. and containing sufficient heat to effect cracking of the diarylalkane over a cracking catalyst, the mixing being effected at a time prior to introduction into the catalyst zone to give an intimate mixture without causing thermal decomposition before entering the catalyst zone.  Steam is the preferred diluent and may be used in a mol ratio to aromatic up to 250 : 1 preferably between 5 and 40 : 1. Benzene, toluene, nitrogen and carbon dioxide are alternatives. Temperatures of 350-570 DEG C. may be used in the catalyst zone but the preheated diarylalkane is preferably below 500 DEG C. but within 40 DEG C. of the thermal decomposition temperature.  Catalysts such as those disclosed in U.S.A.  Specifications 2,422,163, 2,422,164 and 2,422,165 may be used.  Suitable starting materials include the 1,1-ditolyl, -dixylyl, -bis (chlorophenyl), -bis (dichlorophenyl), -di (dimethylaminophenyl), -dinaphthyl, and -dixenyl ethanes and other nuclear substituted halogen and amino derivatives and 2,2-ditolylpropanes.  The diarylalkanes may be prepared by the reaction of acetylene or a substituted acetylene with a monoor dialkyl benzene, or by the condensation of an aryl compound with an aldehyde or ketone in the presence of hydrogen fluoride.