baber/WOPTO huggingface dataset:
Patent GB-947732-A (GB)
Title: Improvements in or relating to electric space heaters
Inventor: BUTTERWORTH ROGER
IPC: F24H7/04
Filed: 1961-06-03
Abstract: 947,732. Electric storage space heaters; unit air heaters. MANTLE & BUTTERWORTH Ltd. June 3, 1961, No. 20107/61. Headings F4U and F4V. A space heater comprises a casing 14 containing a heat storage mass in form of blocks 32 heated by electric heating elements 36 mounted within the mass, a U-shaped main air duct being formed between the mass and the casing and extending from the cold air inlet to the heated air outlet and the mass having cross ducts formed therein between the limbs 18, 20 of the main duct such that air passing through the main duct flows also through the cross-ducts and in so doing passes over the surface of the heating elements. In the form shown, the air ducts formed in the blocks 32 comprise holes 33, through which the electric heating elements extend with clearance, and transverse grooves 38. The air is forced by a fan 26 through the casing and through the ducts 33, 38 to a grilled outlet 30. The fan motor may be switched on and off by a switch controlled by a heatsensitive element located either in the air outlet passage 28 of the heater or in a room in which the heater is placed. The apparatus may function as a storage space heater by heating the mass only during " off-peak " periods. Specification 947,731 is referred to.
Patent GB-151229-A (GB)
Title: Improved manufacture of fodder from straw
IPC: A23K10/32
Filed: 1919-08-15
Abstract: 151,229. Beckmann, E., and Veredelungsges fur Nahrungs-und Futter- Mittel. April 25, 1917, [Convention date]. Straw, softening.-Straw for fodder is softened by treatment with soda, potash, or other alkali lye, without artificial heat. Lyes of different concentration may be used successively, or previously used liquor may be followed by a fresh solution. To control the treatment, a removable gauze container may be employed enclosing knots which are examined periodically. Residual lye is removed by washing, a layer or filter paper &c. being placed above the straw and a drainage orifice provided beneath. The product may be stored under pressure in silos, or dried.
Patent GB-1512966-A (GB)
Title: Phosphazene flame retardants
IPC: C08G79/025
Filed: 1975-05-13
Abstract: 1512966 Modified phosphazene derivatives ETHYL CORP 13 May 1975 20163/75 Heading C2P [Also in Divisions C3 and D1] A modified phosphazene fire retardant is obtained by reacting a substantially fully hydrocarbyloxylated phosphazene and a partially hydrocarbyloxylated phosphazene at mildly elevated temperature such that organic halide is split out; (a) said substantially fully hydrocarbyloxylated phosphazene being one containing not more than 2% by weight halogen bonded to phosphorus and having the formula wherein n is at least 3 and R is an optionally halogensubstituted hydrocarbyl radical; and (b) said partially hydrocarbyloxylated phosphazene having the formula wherein n is at least 3 and T is halogen or -OR wherein R is an optionally halogen substituted hydrocarbyl radical, provided that from 60 to 95% of the T groups are OR and the remainder are halogen. The phosphazene reactants are preferably composed of at least 65% cyclics and preferably have a number average molecular weight of from 400 to 10,000. The group R may be alkyl, cycloalkyl, alkenyl, alkaryl, aryl or benzyl and may have halogen substituents and different R groups may be present in each of the phosphazenes used. The reaction between the phosphazenes is suitably effected at from 80‹ to 220‹ C. and may be conducted in an inert liquid medium such as toluene or other hydrocarbon and an inert gas atmosphere, e.g. of nitrogen or argon may also be used. Examples are given in which the group R in the phosphazenes used is propyl and the use of phosphazene reactants in which R is ethyl, n-butyl, a 50-50 mixture of ethyl and n-butyl, phenyl and n-heptyl respectively is also referred to. The products are useful as flame-retardants for cellulose materials. Examples are also given for preparing propoxy phosphazenes of type (a) and (b) and for preparing phosphonitrilic chlorides which are used in their preparation by reaction with the corresponding hydroxy compound or metal derivative thereof.
Patent GB-1436221-A (GB)
Title: Induction heating apparatus
IPC: H05B6/12
Filed: 1973-04-27
Abstract: 1436221 Induction heating MITSUBISHI DENKI KK 27 April 1973 [2 May 1972 19 July 1972 8 Nov 1972] 20217/73 Heading H5H A method of induction heating a cooking vessel comprises arranging a pole of a core, associated with an exciting coil, adjacent a ferromagnetic part of the cooking vessel, with a non-magnetic highly electrically conductive material element between the ferromagnetic part and the pole, and energizing the exciting coil at 50 Hz to create an alternating magnetic flux passing through the non-magnetic element into the ferromagnetic part of the cooking vessel to heat it, the non-magnetic element having a thickness d in the range where and where g represents the size of the gap between the surface of the pole and the non-magnetic element, γ represents the winding pitch of the excitation coil and pm represents the specific resistance of the non-magnetic element. The ferromagnetic part may be of iron and the non- magnetic element may be of copper or aluminium. Various embodiments employ an iron vessel which may have an outer surface of copper or aluminium on its bottom: a copper or aluminium vessel which may have an inner iron layer, or a vessel which may have an iron layer buried in its bottom. In other embodiments the non-magnetic element is a plate secured over the inductor when a simple iron cooking vessel may be employed.
Patent GB-1167669-A (GB)
Title: Variable Air Jet Delivery System for Blanks
IPC: B23Q7/10
Filed: 1968-04-29
Abstract: 1,167,669. Rolling screw-threads. HARTFORD SPECIAL MACHINERY CO. 29 April, 1968 [4 March, 1968], No. 20222/68. Heading B3M. [Also in Division B8] Work blanks 20 slide down track 22 and are discharged sideways at the bottom thereof to a threading machine by pusher 48. The presentation of the blank to pusher 48 is assisted by three air jets 52 54, 56 the strength of which can be varied to suit the length of the blanks on which they impinge.
Patent GB-1429223-A (GB)
Title: Dental apparatus having a sleeve rest for a dental  handpiece
IPC: A61G15/16
Filed: 1973-04-27
Abstract: 1429223 Dental stands SIEMENS AG 27 April 1973 [28 April 1972] 20246/73 Heading A5R A dental apparatus comprises a housing 25 for a dental handpiece 7, a quiver 11, and a retracting device which enables a supply line 32 either to extend partly outside the housing 25 or to be retracted into the housing 25 while in the same quiver 11. The quiver 11 can be tilted on a pivot 12 and its rear end is biased by a spring 28 toward a surface 26 of the housing 25. Removal of the handpiece 7 causes actuation, via rods 29, 30, of a switch 31 which energises the handpiece 7. The rear of the quiver 11 has an aperture for the supply line 32 and is spaced from an aperture 33 in the housing 25 so that the line 32 can hang freely. The supply line 32 passes over a pulley 34 and is tied to a stationary connector 35. The pulley 34 moves on a carriage 36 on rails 38 and is biased by a spring 40 towards the rear. A wire bow 44 engages a hook 45 on the carriage 36 to retain it in one extreme position in which the line 32 hangs freely. On release of the hook 45, caused by tugging at the line 32, the carriage 36 is pulled in and retracts the line 32. In an alternative embodiment a quiver (50), Fig. 4, (not shown) is adjacent a housing (55) which has an aperture (57), defined by a ring (60) of a low friction material, through which the line may hang. In another embodiment a quiver (61), Fig. 5, (not shown) is adjacent a housing 62 and a recess, formed in the quiver (61) allows the line to hang freely. The dental apparatus includes several handpieces in respective quivers, each pivotable about a horizontal axis and having a retracting device. Each quiver has a longitudinal slot which permits the respective supply line to hang downwardly through it. A spittoon, a water supply and switches for drills on the handpieces are provided.
Patent GB-478656-A (GB)
Title: Implement for facilitating hand knitting of wool or the like
IPC: D04B3/00
Filed: 1936-07-22
Abstract: 478,656. Hand - knitting appliances. SHARP, B. July 22, 1936, No. 20247. [Class 74 (ii)] A ring to be worn on the thumb to facilitate hand-knitting consists of a curled strip of celluloid formed at each end with open slots 6 enlarged at 7 to receive the yarn being knitted. The curved overlapping ends are interlocked by engagement of the slots.
Patent GB-946598-A (GB)
Title: Radioactive iodine process
IPC: G21G1/02
Filed: 1961-06-05
Abstract: 946,598. Separating radioactive iodine. ABBOTT LABORATORIES. June 5,1961 [ June 23, 1960], No. 20249/61. Heading G6R. Iodine -131 is separated from irradiated elemental tellurium by reacting the irradiated tellurium with sulphuric acid and hydrogen peroxide,and distilling iodine -131 from the reaction mixture. Tellurium of particle size between 100 and 200 mesh may be enclosed in an aluminium capsule, exposed to a neutron flux in an air cooled nuclear reactor, and then stirred with 50% sulphuric acid and a small amount of potassium iodide as a carrier for the radioactive iodine; 35% hydrogen peroxide is then run in and when the reaction is complete water is added and the liquid distilled, iodine -131 passing over with the distillate and being collected in a sodium hydroxide solution containing sodium sulphite to form sodium iodide.
Patent GB-1184024-A (GB)
Title: Improvements in devices for Gripping Wires or other Elongated Strip-like Articles
Inventor: PESTER BERNARD HAROLD JOSEPH
IPC: B23Q3/08
Filed: 1968-04-29
Abstract: 1,184,024. Clamp fastenings. PALATINE PRECISION Ltd. 21 April, 1969 [29 April, 1968], No. 20253/68. Headings E2A and E2B. A clamp for gripping fine wire or strip consists of a bellows 6 whose head-plate 7 moves against abutment face 4 in a frame 1. To grip an article, air is fed in through hole 9. The wires &c. are guided by appropriate holes in end plates (13, not shown).
Patent GB-594301-A (GB)
Title: Improvements in coating compositions for paper and the like
IPC: A01G5/04
Filed: 1944-10-19
Abstract: Paper is coated with a composition of pH 4 to 7 comprising a mineral pigment, e.g. clay, starch, a polyphosphate, and an acid-curing carbamylamine- or aminotriazine-aldehyde condensation product, e.g. urea or thiourea, or melamine, ammeline, or ammelide, with formacet-, butyr-, or furfuraldehyde, or alkylated methylol-ureas or -melamines. Acid catalysts, e.g. ammonium chloride, or boric acid and an emulsified wax size may be included.  The resin may be cured at up to 200 DEG  C., e.g. for 3 mins. at 70 DEG  C.
Patent GB-882619-A (GB)
Title: Improvements in methods and devices for extracting gold from its ores by amalgamation
IPC: C22B11/10
Filed: 1960-06-09
Abstract: 882,619. Extracting gold by amalgamating. GUILLIAMS, J. June 9, 1960 [June 30, 1959], No. 20308/60. Class 82(2). A device, shown in Figs. 1, 2, and 3, for extracting gold from an ore by amalgamation, whereby the ore is first crushed and mixed with a liquid such as water to obtain a fluid pulp characterised by passing thin streams of the pulp through a volume of stationary mercury, comprises, in combination, a conduit consisting of one or several vertical columns 1, with one having a flaring upper end 3, in which there is a stack of stream dividing elements (e.g. sieves 4 in Figs. 1 and 2, balls 5 in Fig. 3, or rings) immersed in a volume of mercury 6 greater than that of the stack or stacks, the upper level of the mercury (A) being above that of the stacks (B), and means (e.g. a pump 10 with a system of pipes 11 and 12) for circulating through the mercury and stack(s) in the conduit the fluid pulp 7. For example, a single vertical column may be used, as in Fig. 1, in which the pulp 14 is continuously re-cycled upwardly through the column, the gold amalgam 13 which accumulates in the column bottom 8 being extracted via valve 9 which may be controlled mechanically, electrically or pneumatically. Fig. 2 is similar, in which a vertical feed conduit 12 may be connected with the lower end of the amalgamating column; a plurality of branch conduits controlled by valves 20 are located between the vertical conduit and the column at different levels a, b, c and d, whereby the partial columns may be successively brought into play. In Fig. 3, the conduit comprises a plurality of vertical columns 1 each with its top end connected to the bottom end of the next column by connecting pipes 2, and a shunt conduit 12n, extending from the pump to the bottom of the last column (via 2), with branch conduits controlled by valves 20 connecting different points a, b, c and d of the shunt to the columns respectively. The ore, crushed to obtain grains of maximum size 100 microns, is preferably worked at 25/30‹C.
Patent GB-221220-A (GB)
Title: Improvements in binding devices for books and the like
IPC: B42F11/02
Filed: 1924-08-28
Abstract: 221,220. Boorum & Pease Co., (Assignees of Auw, A. von). Aug. 30, 1923, [Convention date]. Flexible-band files; fold-engaging files; sheets. -Signatures, pamphlets, &c. 8 are secured together by staples 7 secured loosely in their fold so as to leave a space at their back portion 9 through which a flat thong 15 is passed in binding a number of such stapled signatures &c. within a temporary binder. The ends of the thongs are provided with holes 16 to fit over loops 14 on metal rims 13 arranged longitudinally within the binder at the junction of the covers 11 with the back 10. The metal pins 17 are passed through the loops 14 to secure the thongs, the ends 18 of the pins preferably being tapered in order to wedge within the adjacent loop. The thongs may be made of parchment, brass, woven fabric, or other flexible material.
Patent GB-940400-A (GB)
Title: Improvements in or relating to electrical insulators
IPC: H01B17/54
Filed: 1961-06-06
Abstract: 940,400. Insulators. CENTRAL ELECTRICITY GENERATING BOARD, D. H. LUCAS, D. F. OAKESHOTT, and J. S. FORREST. June 5, 1962 [June 6, 1961; July 25, 1961; Feb. 16, 1962], Nos. 20410/61 and 6146/62. Heading H2C. An outdoor insulator for supporting a conductor comprises a length of electrically insulating material incorporating one or more than one resistor elements forming a conductive path between the conductor and the support so that the insulator is heated by the current flow through the resistor element or elements. The resistors used are preferred to have a very low coefficient of resistance change with temperature and are preferably formed of tin oxide mixed with a glass and fired on to a ceramic base. In Fig. 1 is shown an insulator body 10 made of resin bonded glass fibre and incorporating rod-shaped resistor element 14. To the ends of the insulator are secured cast iron or aluminium end members 11, 12 to which are connected the resistor element by means of spring means to relieve it from the load of the conductors supported by the insulator. It is preferred if it is desired to have a large temperature rise to provide a further conductive path between the end members and over the insulator. This is formed by coating the outer surface of the insulators the coating being protected by a protective film e.g. of silicone rubber. Both the conductive paths may be arranged to have a non-uniform resistance per unit length so as to provide a non-uniform temperature distribution along the length of the insulator. The insulator is enclosed in porcelain covering 20 provided with studs 25 which may be of various forms as for example shown in Figs. 3 and 4 (not given).
Patent GB-406013-A (GB)
Title: An improved method of producing pictures and kinematograph films in colours
IPC: G03C7/14
Filed: 1932-07-19
Abstract: 406,013. Colour photography. GASPAR, B., 38, Innsbruckerstrasse, Schoneberg, Berlin. July 19, 1932, No. 20422. Convention date, July 29, 1931. [Class 98 (ii).] Colour photographic images and kinematograph films are produced by copying lenticular screen films with the interposition of colour filters, on to light sensitive material containing dye forming substances. Thus an original three-colour lenticular film is copied by projection on to a light-sensitive material comprising three layers or three different sets of particles containing esters, ester salts or ethers of lenco compounds as described in Specification 379,679. The surface ratios of the single filter sectors are in inverse proportion to the coloursensitiveness of the photographic layer.
Patent GB-917391-A (GB)
Title: Improvements in foam-producing apparatus
Inventor: HENSHAW THOMAS ANTHONY
IPC: A62C3/02
Filed: 1958-09-25
Abstract: 917,391. Foam-producing apparatus. PYRENE CO. Ltd. Sept. 25, 1959 [June 25, 1958], No. 20425/58. Class 14 (1). [Also in Group XXIX] A foam generator and distributer comprises a frame of four bars 3 receiving a jet 5, a foam tube 7 and a foam improving and foam-spreading assembly 8. The latter consists of spaced annular gauze portions 16, 17, 21 and a washer 11. The gauze 21 is backed by a centrally apertured metal plate 22. In operation, a supply of water containing foam-stabilizing compound is fed to a pipe 23 and emerges as a jet from an orifice 6 and draws air through the side openings of the frame. The foam passes through the tube 7 and is deflected and spread laterally by the assembly 8. In the modification of Fig. 4, the tube 7 surrounds concentric cylinders 24, 25, and the foam spreading assembly comprises gauze portions 29, 30 and 32, the latter backed by a disc 34. Specification 842,261 is referred to.
Patent GB-773269-A (GB)
Title: Circle welding machine
IPC: B23K9/028
Filed: 1955-07-14
Abstract: 773,269. Welding by fusion. UNION CARBIDE & CARBON CORPORATION. July 14, 1955 [Aug. 24, 1954], No. 20432/55. Class 83 (4). In a welding-machine for making circular welds, the torch is secured in a holder universally pivoted to the frame of the machine and driving means impart a circular motion to the upper end portion of the torch. The torch uses a gas-shielded non-consumable electrode. When welding tubes B into holes in a header plate W of a heat-exchanger the frame 10 is secured by pegs P in the tubes B. The torch T is clamped to a block C universally pivoted to the frame 10 and adjustable laterally by rotation of a disc 17. The upper end 32 of the torch passes through an offset aperture in a sleeve E eccentrically disposed in a gear 28 journalled in the frame 10. Rotation of the sleeve E relative to the gear 28 varies the radius of the weld. Manual depression of a knob 64 compresses a spring S and lowers a rack. Actuation of a lever 47 first causes the welding current to be switched on and then releases a pawl so that the rack is driven upwards by the spring S and through gearing rotates the gear 28 and causes the electrode to move in a circular path. The speed of the rack is controlled by a piston 56 secured to the rack and moving in a cylinder H forming part of the frame. Fluid above the piston passes through an aperture in the piston at a rate determined by the setting of a valve V. Fluid flows freely in the other direction when the knob 64 is depressed through passages 57 controlled by a check-valve. The frame 10 is provided with a handle D through which pass the cables and conduits for the torch T.
Patent GB-639792-A (GB)
Title: Improvements in scaffold brackets
IPC: E04G7/18
Filed: 1947-07-29
Abstract: 639,792. Screw clamps. DU-ALL SCAFFOLD BRACKET CO. July 29, 1947, No. 20489. Convention date, April 4, 1939. [Class 44] [Also in Group X] A scaffolding clamp comprises a pair of spaced parallel U-shaped members, each consisting of a substantially rectangular bight 13, Fig. 2, a forward leg 14 and an inclined rear leg 15 provided with an extension 16, the rear ends of the extension 16 being joined by a plate 17, Fig. 3; provided with a threaded boss 19 which receives the threaded shaft 21 of a swivelly mounted clamping jaw 23. Alternatively the extensions 16 may be connected by a pair of parallel bars 30, Fig. 7, on which is slidably mounted a U-shaped member 32 having a threaded boss 35 to receive the shaft of the clamping jaw. Tongs 26, 27, Fig. 2, 3, are provided on the jaw 23 and legs 14 to bite into timber scaffolding and the legs 14 have laterally projecting apertured ears 28 through which nails &c. may be driven into the adjacent scaffolding.
Patent GB-225908-A (GB)
Title: Mouldboard for land-ploughing ploughs and the like
IPC: A01B15/08
Filed: 1923-08-13
Abstract: 225,908. Donnan, E. E. Aug. 13, 1923. Mouldboards. - In a mouldboard of the type consisting of substantially parallel bars curved and twisted so as to have the shape of an ordinary mouldboard, the upper and lower edges 14, 16 of each bar, excepting the top edge of the top bar and the bottom edge of the bottom bar, are bevelled so as to form spaces divergent from the working face ; narrow parts of these edges nearest the working face may be parallel.
Patent GB-811062-A (GB)
Title: Attitude indicating instruments for aircraft
IPC: G01C19/32
Filed: 1955-07-15
Abstract: 811,062. Attitude indicators for aircraft. SPERRY RAND CORPORATION. July 15, 1955 [Aug. 2, 1954], No. 20546/55. Class 4. An aircraft instrument for indicating both desired and actual course and attitude comprises a housing 12 provided with a viewing opening 13 for a pair of cross pointers 10, 11 respectively mounted on pivots 15, 16 for rotation by actuating means 17, 19 with respect to a fixed reference index 9 supported by a curved rod 8. The actuating means 17 for the azimuth guidance pointer 10 is energised by an electrical signal corresponding to the algebraic sum of signals proportional to the displacement of the craft from a radio course, the heading of the craft relative to the bearing of the course and the bank angle of the craft. The elevation guidance pointer actuator 19 is energised by a signal corresponding to the displacement of the craft from the glide slope beam of an I.L.S. system and a signal proportional to the pitch angle of the craft. The pointers 10 and 11 thereby provide an indication of a desired course and angle of pitch. The actual attitude of the aircraft is provided by a part-spherical member 25 which is divided into light and dark areas by a horizon-defining line 35 and has a divided scale 75 inscribed thereon to represent angles of pitch. The member 25 is mounted on a pivot 28 and it has an arm 47 fast therewith rocked by means of a crank 45 secured to one end of a push-rod 43. The rod 43 engages at its other end with a cam 42 operated through reduction gearing 57, 58 and 59 from a pitch motor 56 incorporated in a servo loop of a vertical gyro (not shown). The servo loop comprises a pitch synchro 55 driven by rod 43 and electrically coupled to a pitch signal generating device on the gyro so that a signal is generated corresponding to the error between the position of member 25 about axis 28 and the pitch attitude of the aircraft. This error signal is amplified and fed to motor 56 whereby the member 25 is positioned in accordance with the pitch attitude of the aircraft. The pivot 28 is mounted on a gimbal 27 secured to a rotatably mounted sleeve 29 having a toothed ring engaged by a gear train 39 driven by a roll motor 38 incorporated in a servo loop of the gyro. This servo loop comprises a roll synchro 37 driven by the toothed ring on gimbal 27 and as in the pitch servo, an error signal positions motor 38 in accordance with the roll attitude of the aircraft. The greater part of horizon-defining line 35 is located some distance behind the face of the instrument and to give a clearer and more exact indication of the angle of roll, a pointer 85 is mounted closely behind the face 34 for movement with respect to a fixed calibrated scale 86. The pointer 85 is secured to a ring 84 formed with a toothed periphery which meshes through gears with the gear train 39. It is stated that hemispherical member 25 may be formed in two overlapping parts, one fixed and light coloured, the other of dark colour having an edge corresponding to line 35. Specifications 690,985, 776,578 and 811,061 are referred to.