baber/WOPTO huggingface dataset:
Patent GB-651718-A (GB)
Title: Improvements in portable apparatus for the distribution of pulverulent or granular materials
IPC: A01M9/00
Filed: 1947-06-17
Abstract: 651,718. Powder distributers. ALLIENNE, V. G. R. June 17, 1947, Nos. 15994 and 15995. Convention dates, April 6, 1939 and June 1, 1939. [Class 18] [Also in Group XXIX] . A portable apparatus for the distribution of pulverulent and granular materials, e.g. on plants, comprises a powder container 1, Fig. 1, carried by and resiliently urged towards a given position with respect to a fan casing 14 and means operative by the fan for subjecting the container to repeated shocks to cause the material to flow out through an outlet orifice communicating with the fan. As shown in Fig. 3, the container 1 is suspended at 8 from the casing 14 and subjected to the action of a return spring 9 against which the container is displaced outwardly by the periodic engagement of a cam 10, carried by the fan shaft 11, with a member 12 on the wall of the container or on a support 13 therefor. The powder escapes into the air stream of the fan through an orifice 3 and spout 4 and the extent of the flow may be determined by an adjustable shutter 5 and control nut 7. The fan discharges the powder laden mixture into flexible tubes 30 coupled to the fan casing and extended in the form of pipes 15 which are provided with upwardly directed nozzles 31. The apparatus is supported on the user by straps 21, 22 connected to the fan casing and to the lateral pipes 15 and the spacing of the latter may be determined and adjusted by pin-and-slot engagement with a cross member 23, which may also support, through an adjustable chain 27, the central pipe 15. Alternatively, the apparatus may comprise a single centrally disposed pipe 15, Fig. 4 (not shown), and may be supported by a neck strap with an adjustable chain connected to a support that is pivoted to the fan and container unit. The jet emerging from each nozzle is divided into two portions and for this purpose, as shown in Figs. 5 and 6, each nozzle 31 has a guide 32 adjustably held against the nozzle wall by a spring 33 that is slidable in a groove 37 and has projections 38 for engagement with holes 39 to hold it in desired position. Alternatively, each nozzle may have two guiding elements 32, Fig. 11, pivoted on a bolt 41 so that they can be adjusted to alter the amplitude of the dual jets and the direction of their central axes, each element having a lateral wall 43, whose edge engages a groove 42 to hold it in selected position, and a top surface 44 that co-operates in a fluid-tight manner with a tip 45 on the nozzle. Ahead of the orifice, the nozzle is formed with a surface 40, Fig. 6, against which the jet of powder from the pipe 15 impinges to become thoroughly mixed with the air. In a modification, Fig. 13 (not shown), the container 1 is provided with two compartments for different powders which may pass to the fan under control of a single adjustable shutter or individual shutters.
Patent GB-925194-A (GB)
Title: Improvements in or relating to gas torches
IPC: F23D14/54
Filed: 1958-05-19
Abstract: 925,194. Burners. A. PEARSON. Aug. 14, 1959 [May 19, 1958], No. 16006/58. Class 75 (1). A gas torch comprises a hollow handle 1 constituting a gas supply tube and having a head portion which comprises coaxial first and second mixing chambers 7, 14 leading to a flame jet outlet 3, a gas jet 6 terminating the supply tube and disposed in the first mixing chamber adjacent to a series of primary air intake openings 8 and louvres 9 in the wall of the second mixing chamber to constitute secondary air intakes directed towards the flame jet outlet, the louvre walls inclining or curving into the second mixing chamber to direct the intake air towards the jet outlet.
Patent GB-1020462-A (GB)
IPC: G02B13/00
Filed: 1964-04-17
Abstract: 1,020,462. Photographic objectives. CARL ZEISS-SHIFTUNG [trading as CARL-ZEISS]. April 17,1964 [April 20,1963; June 26,1963], No. 16095/64. Heading G2J. The objective consists of eight lenses arranged as six members characterized by:- (a) the front member is a meniscus concave to the second member and consists of two cemented lenses L I , L II  of opposite refracting power wherein the refractive index n s  of the positive lens and n z  of the negative one satisfying the Abbey number v s  of the positive lens and v z  of the negative lens satisfying the sum of the refractive powers of the surfaces of the front member lie within the limits (b) the second member is a meniscus positive lens convex to the front member (c) the third member is a meniscus negative lens concave to the stop (d) the aperture stop is between the third and fourth members (e) the fourth member is a meniscus negative lens concave to the stop and consists of two cemented lenses of opposite refractive powers the glass of the negative lens having a greater chromatic dispersion than the glass of the positive lens (f) the fifth member is an asymmetrical positive lens having the refractive power b v  of its front surface and b h  of its rear surface satisfying (g) the sixth member is a positive lens Numerical data are provided for the example shown wherein the front member has positive refractive power and also for a second example, Fig. 2, (not shown) in which the front member has negative refractive power.
Patent GB-545118-A (GB)
Title: Improvements in soap products formed by extrusion and subsequent treatment
IPC: C11D17/00
Filed: 1940-11-02
Abstract: 545,118. Soap threads. PEARS, H. W. K., and SLACK, H. F. Nov. 2, 1940. No. 16098/41. Divided out of 545,116. Drawings to Specification. [Class 91] [Also in Group V] Soap products in the form of threads of complex cross section are prepared by extrusion from the conventional soap plodder of a soap stock which previous to extrusion has been partly dried and reduced in the ordinary way to chips ribbons or the like so that it is in a solid yet plastic state. The invention also includes the extrusion as above of flat ribbons of soap followed by the punching out of the soap in the form of leaves petals or geometrical shapes. The soap base may prior to extrusion have been .compounded with one or more fillers such as sodium carbonate, sodium silicate, sodium perborate, kaolin, and mucilaginous matter.
Patent GB-434751-A (GB)
Title: Improvements in or relating to boxes, caskets, or cartons, and display devices
IPC: B65D5/52
Filed: 1934-05-30
Abstract: 434,751. Display boxes. HIEKEL, W. A. R. K., and VITREA UNION BOTTLE & GLASSWARE CO., Ltd., 173, Evelyn Street, Deptford, London. May 30, 1934, No. 16125. [Class 18] A box, casket or carton adapted to display the perfume bottles or other articles which it contains consists of a body 1, Fig. 2, formed by securing wood blocks 3, 4, between the ends of walls 14 of a cardboard blank 15, Fig. 4, and securing a cardboard receptacle 16 in the cavity. A lid 2 formed from the blank shown in Fig. 5, is pivoted eccentrically at 11 to the body so that a recess 9 forms an abutment in the display position. The body is covered with decorative paper &c. The members 3, 4 may be of semi-hexagonal or other section and the lid may be pivoted centrally to the end of the body. The container may be made wholly or in part of sheet metal pressings, or a synthetic resin or other mouldable substance may be used. The lid may be opened by means of tassels secured to the bottle caps. The receptacle 16 may rest on a sheet of cardboard spaced from the bottom of the cavity of the body.
Patent GB-1455946-A (GB)
Title: Voice frequency receivers
IPC: H04Q1/453
Filed: 1974-04-11
Abstract: 1455946 Voice frequency receivers STANDARD TELEPHONES & CABLES Ltd 11 April 1974 16176/74 Heading H4K In a multifrequency VF receiver having a high and a low frequency band, resonant circuits responding to the frequencies within the respective bands are fed via a constant voltage circuit Fig. 3 having a transformer TF with a (lower) secondary whose output is rectified D2-D5 and utilized to produce a substantially constant output from the amplifier OA2, connected to the upper secondary, for input signals above a threshold. As shown, input signals below the threshold do not generate sufficient voltage across capacitor C2 to allow D6 to conduct so that the output of OA3, and thus the lower end of the upper secondary, are at earth potential. When D6 does conduct, the output of OA3 becomes increasingly negative to reduce the voltage relative to earth at the input to OA2 to maintain OA2 output constant. Small ferritecored inductors may consequently be used in the resonant circuits.
Patent GB-873297-A (GB)
Title: Improvements in or relating to the production of cyanuric acid
Inventor: CLOAK LOUIS HARMON
Filed: 1958-05-21
Abstract: Cyanuric acid is prepared by decomposing urea and/or biuret by heat in the presence of 2,6-xylenol.  The amount of xylenol should be at least equal to the urea and/or biuret, and heating should be in excess of 150 DEG C., e.g. 180-200 DEG C., for 1-10 hrs.  The precipitate of cyanuric acid on cooling may be filtered off and alcohol may be added to the reaction mixture prior to filtration. The xylenol may be re-used.
Patent GB-1278846-A (GB)
Title: Pulverulent and water bearing explosive and process of producing the same
IPC: C06B47/14
Filed: 1970-04-06
Abstract: 1278846 Explosive compositions; mixed crystals containing NH 4 NO 3  and K salts HIRTENBERGER PATRONEN-ZUNDHUTCHEN UND METALLWARENFABRIK AG 6 April 1970 [15 Sept 1969] 16257/70 Headings C1A and C1D A pulverulent or water-containing explosive mixture comprises by weight 0-20% water, 3-6% liquid hydrocarbon, and 50-97% mixed crystals isomorphous with ammonium nitrate III which have been prepared by co-crystallization between 20‹ and 100‹ C. of an aqueous solution of ammonium nitrate and a potassium salt in the presence of a salt of a primary alkylamine having 8-18 carbon atoms in the alkyl group. The potassium salt is preferably potassium nitrate but reference is also made to potassium fluoride, chloride, bromide, iodide, formate, acetate, citrate, oxalate, and bichromate. The liquid hydrocarbon may be diesel oil. Perchlorate, nitrate or chloride salts of C 12 , C 10 , C 8 , or a mixture of C 5 -C 18  alkylamines may be used; formates, acetates and lactates are also referred to. The nitrate or acetate of ethanolamine may also be present. Additives to increase the solubility of the salts are the inorganic salts sodium and calcium nitrates and the organic compounds formamide, glycol, glycerine, dimethylformamide, acetamide, and urea. Other optional additives are barium and zinc nitrates, aluminium powder, guar flour or polyacrylamide, carbon, sugar, ethylhexylamine hydrochloride, silicone oil, and the high explosives nitroglycerine, TNT, PETN, and nitrated sugar and starch. The mixed crystals used in the compositions retain their lipophilic character at a lower temperature than the ammonium nitrate of Specification 1,205,244.
Patent GB-113105-A (GB)
Title: Apparatus for and Processes relating to Purifying or Treating Water or Sewage or other Liquids.
Inventor: WALLACE CHARLES FREDERICK
IPC: C02F1/76
Filed: 1916-11-14
Abstract: 113,105. Wallace, C. F., and Tiernan, M. F. Nov. 14, 1916 Fluid-actuated valves.-In apparatus for treating liquids with gases, and particularly for treating water or sewage with chlorine, the flow of gas is maintained proportional to the flow of liquid by causing it to pass a constriction, such as a control valve 67, Figs. 1 and 2, which is described in Specification 113,106, whereby its pressure is reduced, and by rendering the drop in pressure, by means of a differential pressure device 33 acting upon a valve 101 through which the gas is supplied, equal to a pressure difference dependent upon the flow of liquid, such as that obtained by a Venturi tube. In the form of apparatus shown in Fig. 1, gas is supplied from cylinders 27, 28 through a valve 31 operated by an electromagnet to cut off one cylinder when it becomes empty and to connect up the other. After passing the constriction 67 it flowe through a measuring and indicating device S, and into a casing 25<a> in the liquid main where it is diffused into the liquid by a diffuser 158. In the differential pressure device shown in Fig. 2 the gas passes through a, passage 99 to a valve 101 and then by a passage 103 to a chamber 85 closed by a diaphragm 93 and by a pipe 66 to the constriction 67. The gas at reduced pressure after passing the constriction has access by a pipe 97 to a diaphragm 91. A sealed fluid between the diaphragms 91, 93 and able to pass from one to the other through a passage 98, transmits the reduced gas pressure to the left side of the diaphragm 93, which is therefore subject to a pressure equal to the drop in pressure of the gas across the constriction 67. A diaphragm 92 is subjected on opposite sides to the pressures transmitted by pipes 94, 95, Fig. 1, connected to a Venturi tube in the liquid main. The diaphragms 92, 93 act in opposite directions on the stem 109 of the valve 101. The aperture for the passage of the valve-actuating stem in the wall which separates the chambers between the diaphragms 92, 93 is sealed by an elastic tube 114 connected at one end to the wall and at the other to the stem, and the tube is supported against collapse by helical springs outside and inside. According to a modification, the liquid passes through a chamber wherein its height is dependent upon its rate of flow, and a float therein transmits pressure by a rod 178, Fig. 6, to a diaphragm 180 which transmits the pressure through a liquid to one side of the diaphragm 92, Fig. 2. In this case the other side of the diaphragm 92 is open to atmospheric pressure and the diaphragm 91 is dispensed with. According to another modification, the liquid to be treated is delivered by pumps, and smaller pumps pass a proportional volume of the liquid through the Venturi tube shown in Fig. 1.
Patent GB-1074043-A (GB)
Title: Production of refractory metals and alloys thereof
Inventor: EVANS EVAN WILLIAM
IPC: C22C1/02
Filed: 1964-04-20
Abstract: The oxygen content of V, Mo, W, Ta, Nb and alloys thereof, which have been reduced from their oxides by an aluminothermic reaction, is reduced by arc-melting the refractory metal under vacuum or inert gas in the presence of Al.  The Al may be present in the refractory metal as a deliberate alloying element or as an impurity or it may be added before or after melting.
Patent GB-529544-A (GB)
Title: Improvements in and relating to the thermal obtention of metals from metal compounds
IPC: C22B5/00
Filed: 1939-06-02
Abstract: 529,544. Electric furnaces. BERGHAUS, B. June 2, 1939, No. 16318. Convention date, June 8, 1938. [Class 39 (iii)] [Also in Group II] Metals, for example magnesium, copper, chromium, and tungsten, are obtained by heating a mixture of metal compounds and a reducing agent such as carbon, silicon, or ferrosilicon by means of an electric glow gas discharge at reduced pressure which may be 0.01 - 40 mm. of mercury. The gas may be hydrogen, supplied continuously or intermittently, and the mixture may be in the form of pressed bodies. In the apparatus shown, the mixture is treated in a crucible 17 insulated in a furnace 2 provided with gas inlet and outlet 24, 26, cooling jacket 4, and inspection window 7, the source of current being connected to the metal wall of the furnace and to the crucible. The metal may condense on the furnace wall 2 and may be removed intermittently or continuously, in which latter case it is cooled in an evacuated chamber. In a modification, for the treatment of pressed bodies, the bodies may be mounted on a quartz plate in the furnace and the electric discharge may be between the furnace wall and an insulated electrode mounted therein. The gases formed during the reduction may in some cases be drawn off directly from the crucible.
Patent GB-983543-A (GB)
Title: Improvements in automatic oven cleaning
IPC: F24C14/02
Filed: 1961-05-05
Abstract: 983,543. Ovens. GENERAL ELECTRIC CO. May 5, 1961 [May 9, 1960], No. 16321/64. Divided out of 983,542. Drawings to Specification. Heading F4W. [Also in Division H2] The oven is identical to that disclosed in Specifications 983,542 and 983,544, but the claims are directed to a method of cleaning the oven of food soil, in which the inner lining of the oven is raised to between 750‹ and 950‹ F. to degrade the food soils, the gaseous degradation products being permitted to escape from the oven cavity to prevent their subsequent condensation therein.
Patent GB-780105-A (GB)
Title: Filtering liner for barrels of extrusion machines
IPC: B29C48/03
Filed: 1955-06-07
Abstract: 780,105. injection-moulding and extrusion machines. DU PONT DE NEMOURS & CO., E. I. June 7, 1955 [June 9, 1954], No. 16364/55. Class 87(2). A liner 5 for the cylinder 1 of an injectionmoulding or extrusion machine has longitudinal grooves 8 on its exterior and perforations 9 in these grooves. Plastic material advanced by a plunger 7 (or a screw) passes through the perforations, along the grooves between the liner and the interior of the cylinder, and out through nozzle 3. The liner acts as a filter for large lumps of material, and helps to melt the material by friction of the latter involved in flowing through the perforations. The discharge end of the liner is apertured at 12.
Patent GB-185854-A (GB)
Title: Improvements in or relating to electric plug and socket connections
IPC: H01R13/115
Filed: 1921-06-14
Abstract: 185,854. Tucker, J. B. June 14, 1921. Plug couplings.-In a plug socket having a longitudinal split a<1> extending to its mouth and a number of lateral splits a<2> extending peripherally from this split to form circumferential tongues the longitudinal split is closed short of the entire length of the socket.
Patent GB-716746-A (GB)
Title: An air conditioning cover for use on beds or for covering parts of the human body
IPC: A47G9/02
Filed: 1952-06-30
Abstract: 716,746. Counterpanes and quilts. LEE, R. V. June 30, 1952 [May 5, 1952], No. 16420/52. Class' 142(4) [Also in Groups VI and XIII] A cover for heating or cooling part of a person's body or a person in bed is formed by joining the edges of two porous fabric sheets 2, 3, as by stitching 4, except for an opening 5 into which warm or cool air is introduced for inflation of the cover and diffusion through the sheets, the sheets being quilted by loose or flexible ties 18. The device may be shaped to a part of the body, e.g. to cylindrical form to accommodate an arm or leg, but as shown, is for use on a bed. A fan 10 inflates the cover as in Fig. 2 by means of a duct 6 and is housed in a unit 9 having an air inlet grille 11 and, optionally, a filter and an electric heater 12 controlled from a box 15 or by switches and thermostatic control on the unit. When not in use the cover folds flat and is stored in a compartment 20.
Patent GB-421543-A (GB)
Title: Improvements in lighting standards for illuminating dog racing tracks and the like
IPC: A63K1/02
Filed: 1933-06-08
Abstract: 421,543. Lighting-standards. GENERAL ELECTRIC CO., Ltd., and PEIRCE, M. W., Magnet House, Kingsway, London. June 8, 1933, No. 16453. [Class 52 (v)] [See also Groups X, XV, and XXV] A lighting - standard for dog-racing and like tracks adapted to be lowered from the operative position to extend along the side of the track when not is use comprises an arm 1 pivoted to a base 3 and adapted to rest against part of the base in its operative position in which it extends upwards and outwards over the track. The arm 1 has at its lower end a ball 2 mounted in the dome-shaped base 3 in which it is retained by a plug 5 screwed into the open under side of the base. Two slots 7, 8 are formed in the base at right angles to one another, the slot 8 which extends parallel to the track being longer than the slot 7, and in the lowered position shown the arm 1 rests upon the lower end of the slot 8. To bring it to the operative position the arm is raised in the slot 8, turned through 90‹ and lowered until it rests against the lower end of the shorter slot 7. A key 9 prevents turning of the arm except in the vertical position, and a pin on the arm engaging a recess in the base limits the extent of turning. A dust cover 11 protects the slots and grease is introduced through a nipple 6. The upper end of the arm is bent downwards to direct the light on the track. A single slot only may be provided, extending parallel with the track, and the lower end of the arm bent through 45‹ so that when raised to the upper end of the slot and turned axially through 90‹ it extends over the track. A block placed in the slot retains the arm in this position and a pin mounted in a collar on the arm takes in a hole in the base to prevent rotation. Fig. 5 shows a modification in which the arm 1 is mounted on a universal joint comprising a horizontal pivot 19 and vertical pivot 20, and a bracket 21 is provided for supporting the arm in its operative position.
Patent GB-919183-A (GB)
Title: New cyclo-pregnanes and process for their manufacture
IPC: C07J75/00
Filed: 1959-05-13
Abstract: The invention comprises an 18,21-cyclo-20-oxo-pregnane in which the 3-position is unsubstituted or is substituted by a free or functionally converted hydroxy or oxo group, pharmaceutical preparations thereof obtained in admixture or conjunction with a pharmaceutically suitable carrier and a process for the manufacture thereof by heating a 21-diazo-20-oxo-pregnane in the presence of a metal oxide, e.g. cupric oxide, iron oxide, cobalt oxide, nickel oxide, cadmium oxide, silver oxide or a mixture of two or more of these oxides.  Said pharmaceutical preparations having a progestative action may be administered parenterally as solutions, suspensions, emulsions and implantates, enterally as tablets and dragees, or for local application as salves or creams.
Patent GB-1347061-A (GB)
Title: Camera suitable for use with a flash apparatus
IPC: G03B15/04
Filed: 1971-05-24
Abstract: 1347061 Photographic cameras AGFAGEVAERT A G 24 May 1971 [23 May 1970] 16551/71 Heading G2A A camera is provided with means for striking an ignition device which is situated either in the camera, or in an attached flash apparatus, the ignition device being either a Piezo-electric device, or a primer tube of a percussive flashbulb. The camera striker means may alternatively release tensioned striker means in an attached flash apparatus to operate an ignition device therein. As shown, the camera has a striker member 4 on a striker lever 2, which member 4 operates directly on the primer tubes 8 of percussive flash-bulbs in a flash-cube 6. In use, a release 24 is depressed thereby pivoting a lever 9 in the direction of arrow B. An extension 11 of the striker lever 2 is thereby freed from the extension 27 of the lever 9. A spring 16 then pivots the striker lever 2 clockwise (as seen) causing the member 4 to pass through an aperture 5 in the camera housing, and thus ignite a flashbulb. At the end of this clockwise rotation, the extension 11 pivots a retaining pawl 19 out of engagement with an extension 18 of a tensioning member 14, which is thus rotated in direction C by a spring 15. A pin 13 of the member 14 ensures that the striker lever 2 is also rotated in direction C until the extension 11 re-engages behind the extension 27. During film transport operation, the cube 6 is rotated through 90 degrees, and a slider 22 is moved in direction D, so that its extension 21 engages extension 20 of the tensioning member 14 which is thereby rotated clockwise (as seen) until re-engaged by the pawl 19, this rotation tensioning the springs 16, 15. Alternatively, the tensioning member may be coupled to shutter release means so that spring 16 is tensioned thereby. The striker lever 2 may be arranged to operate the camera shutter.