baber/WOPTO huggingface dataset:
Patent GB-731951-A (GB)
Title: Improvements in apparatus for heat treating metal objects
Inventor: HYND JOHN
IPC: C21D1/62
Filed: 1952-09-25
Abstract: 731,951. Heat treating metals. WELLMAN SMITH OWEN ENGINEERING CORPORATION, Ltd Dec. 22, 1953 [Sept. 25, 1952], No. 24075/52. Class 72. An apparatus for heat treating metal objects comprises gas-fired furnaces 1, 10 arranged in line end-to-end but spaced apart longitudinally, a quenching tank 22 between said furnaces and an air-cooling tank 25 immediately beyond the discharge end of furnace 10, both tanks being beneath the level of the furnace floors. At the beginning of a cycle of operations, a framework 48, displaceable by hoising gear 50, is in its lower position so that channel members 49, similar in cross-section to members 30 which run along the tops of both furnaces, are aligned with said members 30. The metal objects, e.g. shell-cases, are loaded on to carrier members such as 29, each consisting of a vertical body portion 35 and rollers 36 which engage the inner surfaces of the channel members; the mid-portions of the carrier members extend through slots 6 in the roofs of the furnaces, the furnaces also being provided with vertical slots opening into end apertures 9 to permit the passage therethrough of the objects being treated. A hydraulic ram 52 moves out and displaces the carrier members located on the channel members 49 on to the members 30, the loaded carrier members being moved along the members 30 by the ram pushing in further loaded carrier members. Each time the ram 52 is retracted the doors 56 of the furnace 1 are closed and the hoisting gears 42, 47 are operated to lower their respective frameworks 40, 44 which are similar to framework 48 and provided with channel members such as 45. Loaded carrier members are thus first displaced on to the framework 40, this movement actuating the quenching nozzles 23. After a predetermined time, the articles are further moved into the furnace 10 and thence on to the channel members 45 of framework 44, said framework having, in the course of its journey downward, operated a switch for actuating the means for lifting the cover 61 of the air-cooling tank 25 and for actuating the air-cooling fan supplying an air blast through the duct 26. After a predetermined time, the air blast is stopped, the shellcases unloaded and the frameworks 40 and 44 raised so that their channel members are aligned with fixed guideways 46. Ram 55 then moves out to displace the unloaded carrier members from channel members 45 into the guideways 46. The returning of unloaded carrier members is thus made by a series of step-wise advances in synchronism with the advance of the loaded carrier members through the furnaces. This return may however be effected in a single continuous movement.
Patent GB-361344-A (GB)
Title: Improvements in methods of tanning and in tanned materials
IPC: C14C3/00
Filed: 1930-08-12
Abstract: 361,344. Tanning processes. UNITED SHOE MACHINERY CORPORATION, 140, Federal Street, Boston, U.S.A.-(Assignees of Merritt, M. M. ; Middleton, Massachu. setts, U.S.A.) Aug. 12, 1930, No. 24085. Convention date, Oct. 24, 1929. [Class 76.] Hides &c. are treated with tanning material while in a slicked-out condition or otherwise extended, for instance as by a putting-out machine. The treatment is effected at atmospheric pressure and with exposure to air. The tanning is continued sufficiently for the superficial layer of the leather to become set and where the process is applied to slicked-out hides the hides are then reversed and treated on the other side. The tanning material may be applied by a spray, brush or swab or by a superposed layer of granular material or a sheet of fabric saturated with solution. Strong solutions of tanning materials are employed and the process may be assisted by hanging up the treated hides &c. to dry or allowing them to dry in slicked-out condition. After one or more treatments of the kind described a finishing tanning may be applied in known manner, e.g. by means of a drum. Specifications 2230/06 and 105,925, [both in Class 76, Leather], are referred to.
Patent GB-1500225-A (GB)
Title: Enamine derivatives
IPC: C07D207/09
Filed: 1976-06-10
Abstract: 1500225 Enamine derivatives SOC D'ETUDES SCIENTIFIQUES ET INDUSTRIELLES DE L'ILE - DE - FRANCE 10 June 1976 [12 June 1975] 24113/76 Heading C2C The invention comprises novel compounds (I) in which R is a C 1-5  alkyl or C 2-5  alkenyl group optionally containing a reactive function, R 1  is a C 1-5  alkyl, alkoxycarbonyl or acyl group, R 2  is a hydrogen atom or a C 1-5  alkyl group and R 3  is a C 1-5  alkyl or alkoxycarbonyl group; or -CR 2 =CR 3 - forms a cycloalkenyl group and each of n and m, which are the same or different, is 1, 2 or 3, including their dextrorotary and laevorotary isomers and their acid-addition and quaternary ammonium salts of such compounds. They are made by reacting (II) with ketones (III) having a labile H-atom in the α-position. The example describes the preparation of methyl N-(1-ethyl-2-pyrrolidinylmethyl)-3-amino-crotonate (and its hydrochloride) by interacting methyl acetoacetate and N-ethyl-2- aminoethylpyrrolidine.
Patent GB-385021-A (GB)
Title: Process for preparing esters of high viscosity from castor oil
IPC: C10M159/08
Filed: 1931-08-27
Abstract: Esters of high gravity are made from castor oil by partially "splitting" the glycerides contained in the oil, removing the glycerine thus formed and heating the residue to form new esters. For example, castor oil is heated with a mixture of sulphuric acid and a fatsplitting agent until the mixture attains an acid value of 80 to 120.  After settling, the lower layer containing sulphuric acid and glycerine is drawn off, and the upper layer containing fatty acids and glycerides is washed with water and heated under reduced pressure to 482 DEG  F. until esterification is complete.  In the final stage the temperature may be raised to 575 DEG  F., and if necessary a small amount of raw castor oil is added to remove traces of free acid remaining.  During esterification, dehydrating agents, inert gases or catalysts such as tin or zinc may be added.ALSO:A process for rendering castor oil miscible with mineral oil, consists in partially "splitting" the glycerides contained in the oil, removing the glycerine thus formed, and heating the residue to form new esters. For example, castor oil is heated with a mixture of sulphuric acid and a fat-splitting agent, until the mixture attains an acid value of 80 to 120.  After settling, the lower layer containing sulphuric acid and glycerine is drawn off, and the upper layer containing fatty acids and glycerides is washed with water, and heated under reduced pressure to 482 DEG  F., until esterification is complete.  In the final stage the temperature may be raised to 575 DEG  F. and, if necessary, a small amount of raw castor oil added to remove the traces of free acid remaining.  During esterification, dehydrating agents, inert gases or catalysts such as tin or zinc may be added.
Patent GB-332086-A (GB)
Title: Improvements in bottle caps
IPC: B65D39/02
Filed: 1929-08-08
Abstract: 332,086. Franckel, M. Aug. 8, 1929. Disc closures. - In order to prevent ink offsetting in the manufacture of printed discs for closuring milk bottles &c., the discs are provided with a projection or projections 13 which rise a few thousandths of an inch above the printed surfaces of the discs. When such discs are drying in packing tubes they are consequently slightly spaced apart. The projections may be continuous or interrupted and are disposed near the edges of the discs. The discs are provided with pull tabs 11.
Patent GB-914978-A (GB)
Title: Improvements in and relating to gas control means
Inventor: BARNES HUGH VERNON
IPC: G05D7/00
Filed: 1961-07-05
Abstract: 914,978. Fluid-pressure servomotor-control systems. RADIATION Ltd. July 5, 1961, No. 24240/61. Addition to 897,134. Class 135. A gas-control means embodies a gas inlet, a main gas valve 4 controlling the flow of gas through the inlet, a diaphragm 12 controlling the valve, a Venturi supplied with gas from the inlet, and a passage 15, 26, 32 between the Venturi and one side of the diaphragm whereby the latter may be subjected to reduced pressure, the Venturi being embodied in a preassembled unit 17 comprising a radially apertured sleeve 18 having two end plugs 20, 22 with their inner ends mutually spaced and the sleeve apertures communicating with the space. The unit 17 supplies gas to a connection for a pilot burner with which a thermally-actuated valve, such as that described in the parent Specification is associated to control the supply of air to a connection 34 leading to a bore 16 containing the unit. Communication between the bore and atmosphere may also be controlled through a connection 36 by a thermostat or clock-actuated valve. The plug 22 is secured in the sleeve by cement while the plug 20, which is similarly secured, is rotated until there is a maximum pressure drop across the apertures 19 before the cement hardens. A passage 29 connects the Venturi to the inlet of the main valve and two filters 30, 35 of precompressed cotton wool, fibre glass or rolled crepe paper are provided.
Patent GB-941696-A (GB)
Title: Electrically operated display apparatus
IPC: H04N9/12
Filed: 1962-06-26
Abstract: 941,696. Optical apparatus. J. H. TODT. June 26, 1962 [Sept. 25, 1961], No. 24541/62. Heading G2J. [Also in Divisions G5, H3 and H4] To improve the resolution of a magnetically operable display panel (see Division G5) different lenses are used to collinate the light. Planoconcave lenses 109a-109c,110a and 111a-111c, 112c (Fig. 5) are placed on either side of the ferromagnetic shutter elements 64-67 respectively. For a colour display, in which cells each made up of three different colour cells arranged in a square to form the particular colour for that spot are used, a horizontal Fresnel lens arrangement focuses the output of the colour cells (Fig.7). The arrangement consists of convex segment lenses 113, 115, 116, 119, 117 (115, 119 being inverted with respect to the others) and interspersed concave lenses 114, 118,between the lightcontrolling ferromagnetic shutters and the front display panel 120. This consists of a number of vertical cylindrical lenses or alternatively of spherical lenses or it may be frosted.
Patent GB-741298-A (GB)
Title: Improvements in liquid contents gauges
Inventor: JOHNSON IVAN BORIS DAVIS
IPC: G01F23/26
Filed: 1952-10-01
Abstract: 741,298. Capacitance measurement of liquid level. SMITH & SONS (ENGLAND), Ltd., S. Dec. 10, 1953 [Oct. 1, 1952], No. 24577/52. Drawings to Specification. Class 37. In apparatus of the kind described in Specification 733,864 for capacitance gauging of the level or volume of liquid in a tank, variations in dielectric constant of the liquid are compensated by a modification wherein the tuned anode circuit of the pentode valve energized by the amplified output of the oscillator tuned by the immersed capacitance comprises an auto-transformer having symmetrical taps across which the tuning condenser and damping resistance in the anode circuit are connected, from which equal antiphased alternating voltages of the operating frequency (controlled in amplitude by the variable pentode bias) are derived, and respectively coupled to the live end of the immersed capacitance tuning the oscillator circuit through a high stability fixed capacitor, and to a reference capacitor comprising plates immersed in a sample of the liquid in the tank. The stable fixed capacitor has capacitance C, the reference capacitor a capacitance kc where k is the dielectric constant, and the immersed capacitor a capacitance Cx(k - 1) where x is the fraction that the tank is filled. It is shown that with such a modification the pentode anode current measurable to indicate the liquid volume or level is proportional to the fraction x of the tank which is filled, independently of the dielectric constant of the liquid. The Provisional Specification states that the pentode anode circuit may include a transformer having a centre-tapped secondary to produce the equal antiphased alternating voltages supplied to the reference and stable fixed capacitors.
Patent GB-756278-A (GB)
Title: Process for the preparation of acetyl acetone
IPC: C07C45/67
Filed: 1954-08-27
Abstract: Acetyl acetone is made by reacting acetyl chloride with aluminium chloride in the presence of an inert water-immiscible liquid which is a solvent for acetyl chloride and a non-solvent for the aluminium chloride-acetyl chloride complex, decomposing the precipitated organometallic complex in the presence of the remainder of the reaction mixture with aqueous sulphuric acid, separating the resultant mixture into an organic and an aqueous layer and recovering acetyl acetone from the organic layer. Preferably about 9 mols. of acetyl chloride are reacted with 4 mols. of aluminium chloride in chloroform or carbon tetrachloride, the diluent being used in the proportion of at least two parts by volume for each part by volume of the reactants; aqueous sulphuric acid is added in amount slightly in excess of the stoichiometric equivalent required to convert the aluminium chloride to aluminium sulphate with sufficient water, either contained in the aqueous sulphuric or subsequently added, to hold all the aluminium salts in solution; the organic layer is separated and acetyl acetone is recovered from it.  A further quantity of acetyl acetone may be recovered from the aqueous layer by extraction. Examples are given.
Patent GB-317788-A (GB)
Title: Dismountable frame for lamp shade
IPC: F21V1/06
Filed: 1929-08-15
Abstract: 317,788. Steele, B., (Assignee of Deplihez, J.). Aug. 22, 1928, [Convention date]. Shades, silk, paper, and like. - A wire lamp-shade frame capable of being quickly assembled and taken to pieces has sockets b fixed, as by soldering, to certain of the pieces and adapted to receive the extremities of, or projections from, the other pieces. As shown the sockets are fixed to the rings a, a<1> of the frame and receive the ends of the rods c. To strengthen the joint a piece of wine is inserted into each socket before soldering and fills it for a length equal to the thickness of the rings a, a<1>. The sockets may be fixed to the rods c and take projections fixed to the rings.
Patent GB-532753-A (GB)
Title: Improvements in cutting machines
IPC: B26F1/38
Filed: 1939-08-30
Abstract: 532,753. Cutting-machines. LOWENSTEIN, A. Aug. 30, 1939, No. 24941. Convention date, Sept 6, 1938. [Class 31 (i)] A cutting machine employing a verticallyreciprocated knife for cutting out designs by moving it over a flat piece of cardboard, wood, metal &c. has the knife so mounted in its holder that it can be rotated to adjust the line of cut. The machine is guided by handles 19 and the knife 12 is carried in a holder 9 rotatably mounted in a socket in a fixed member 6 and turned by a cord 14 passing over pulleys 13, 15, the latter being adjusted by a wheel 18. Gearing or rack and pinion mechanism may replace the cord and pulleys.
Patent GB-237138-A (GB)
Title: Improvements in a method of and apparatus for placing or locating annular articles
IPC: B29D99/00
Filed: 1924-10-20
Abstract: 237.138. Hennessy, D. E. Oct. 20, 1924. Feeding articles by transfer devices not associated with bins, hoppers, and shoots; arranging articles in predetermined number and position.-Articles such as the flat or cupshaped washers used in rubber heels to prevent the pulling through of the attaching nails are separated in predetermined number and position from a loose mass and in this number and position are transferred simultaneously to their final position such as on the pins of a mould for making rubber heels. The apparatus consists of a plate 28 formed with shallow recesses 30 adapted to retain correctly shaped and positioned washers and to rejec others. Clearance holes 32 of a size to allow the. washers to pass completely through the plate are connected to the recesses 30 by slots 31. The plate is placed on a table 20 with bosses 33 adapted to fill the clearance holes 32 flush with the top of the plate 28 and the slots 31 flush with the bottom of the recesses 30. A loose mass of washers is deposited on the plate and caused to travel slowly over it by the rocking of the table whereby the recesses are filled each with one washer, the excess passing into a box. The plate, with the washers is removed and, in the case of the moulding of rubber heels, is placed over the bottom plate 34 of the mould with the shouldered pins 36 passing through the slots 31 into the central hole of the washers. Side movement of the plate brings the washers over the clearance holes 32 and allows removal of the plate, leaving the washers on the pins. Projections 38 and slots 39 position and guide the plate, in relation to the mould.
Patent GB-172374-A (GB)
Title: Improvements in means for transmitting messages
IPC: H04L15/16
Filed: 1920-08-30
Abstract: 172,374. Grant, J. C. Aug. 30, 1920. Machines for coding; types. - A machine for - transmitting telegraphic and like messages in code has a standard keyboard, operation of which in clear serves mechanically to transmit, or to embody, in a form suitable for transmission, characters in a code which preferably varies automatically and can be altered at will. The cryptographic typewriter described in Specification 122,886 is modified by replacing or supplement. ing the cylinder from which the coded impression is taken by a cylinder 3 having rows of characters mutually displaceable, as described in the said Specification, but bearing representations of the characters in the morse or other systems used in telegraphy. Such representations may be arranged as electrical contacts across which a wiper 7 may be drawn vertically, to complete the line circuit, by a bar 9 which lies across the ends of the keys 8. The message is typed in clear by means of the type-cylinder 1 and hammer 2 and may also be typed in code bv means of an additional cylinder. Specification 152,625 also is referred to.
Patent GB-1292242-A (GB)
Title: Method and apparatus for incinerating waste oil
IPC: F23G7/05
Filed: 1971-04-19
Abstract: 1292242 Burning waste oil IWATANI & CO Ltd 19 April 1971 [23 March 1970 4 June 1970] 25034/71 Heading F4B Waste oil containing up to 40% by weight of water is allowed to drip into a combustion chamber from a pipe 10. Air supplied by a fan 14 through a jacket 3 is delivered through the lateral apertures of tuyeres 11 to atomize the oil which is burnt with secondary air delivered through apertures 19 surrounding the furnace door 6 from an air chest 18 cooling the front end of the chamber. A water jacket 4 lies between the air jacket 3 and the combustion chamber and surrounds the lower part of the flue stack 7.
Patent GB-519580-A (GB)
Title: Improvements in and relating to electric high tension cables
IPC: H01B7/28
Filed: 1938-08-26
Abstract: 519,580. Cables. FELTEN & GUILLEAUME CARLSWERKE AKT.-GES. Aug. 26, 1938, No. 25094. Convention date, Aug. 26, 1937. [Class 36] To prevent deterioration of the insulating properties of the oil in an oil-filled or oil-impregnated cable having a stranded copper conductor, the conductor is provided with a lead covering which fills the interstices between the strands on the periphery of the conductor, over which covering is directly arranged a layer of tin or aluminium preventing chemical action between the oil and the copper conductor and its covering. The tin or aluminium layer may be formed by winding a band of the material in overlapping turns on the lead covering; or a seamless layer may be formed by galvanizing or by pressing over a continuous sheath. To prevent chemical action between the oil and the outer sheath of the cable a tin or aluminium layer may be provided between the sheath and the dielectric of the cable. Specifications 373,637, 427,584, and 458,030, are referred to.
Patent GB-823794-A (GB)
Title: Improvements in or relating to turbo-machinery constructions
Inventor: CLARK NEIL MILLIGAN
IPC: F01D11/00
Filed: 1956-08-17
Abstract: 823,794. Stuffing-box substitutes; turbines. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. Aug. 7, 1957 [Aug. 17, 1956], No. 25182/56. Classes 110 (3) and 122 (5). A seal between the rotor 11 of a turbine and a volute 12<1>, 1211 mounted within a split stator housing 5<1>, 5<11>, comprises sealing rings 13 positioned between an extenson 11 of the rotor and the volute, the latter supporting the rings and being itself supported from the stator blading. The turbine shown comprises discs 1 bolted together in pairs and carrying rows of turbine blades 4, the two-part volute chamber 12<1>, 12<11> divided along planes 10, Fig. 2, and a two-part outer casing 8<1>, 8<11> enclosing both the volute chamber and the two-part stator casing 5<1>, 511 which is secured to the latter by bolts 23. The seal is provided between the tubular extension 11 of the rotor and the radially-inner walls of the volute chamber and as shown, is of the labyrinth type in which a pack of rings 13 is mounted in a two-part housing 14, 15, a spring 25 being provided to hold the rings together. This assembly is secured to the inner wall of the volute chamber by bolts 19, 21 passing through annular ribs 16, 18 on the housing part 14 and lugs 17<1>, 17<11> welded to the volute chamber. In a modification, the part 15 of the seal housing is replaced by a flat plate and the end wall of the part 14 is provided with pockets for the reception of springs which act upon the sealing rings 13 and are retained therein by a ring.
Patent GB-779972-A (GB)
Title: Improvements relating to the coating of metal articles with aluminium
IPC: C23C10/28
Filed: 1955-09-02
Abstract: 779,972. Coating metals. GENERAL MOTORS CORPORATION. Sept. 2, 1955 [Sept. 29, 1954], No. 25264/55. Class 82(2) [Also in Group XXVII] Articles of ferrous metal, titanium or titanium base alloys, nickel base alloys, molybdenum or its alloys, such as nuts and bolts, tubing, wire, woven metal fencing but particularly poppet valves for I.C. engines are coated with alminium by painting or spraying on a coating of aluminium-containing material (which may be molten aluminium) and then heating the article whilst the coating is in contact with a salt flux containing potassium and sodium chlorides, cryolite and aluminium fluoride, so that the aluminium is caused to alloy with the surface. The flux may be mixed with the A1-containing material and the mixture painted or sprayed on to the article which is then heated by e.g. induction of 1275-1400‹F; or, the molten flux may serve as a bath to heat the article already coated with the aluminium-containing material in which case the article may be rapidly rotated or vibrated in the flux or on removal therefrom, whilst preheating to 1000-1100‹F. before immersion is also desirable. As described, a poppet valve 10 is cleaned and if necessary pickled in an aqueous solution of some 2 per cent HF, 7 per cent H 2 SO 4 , 10 per cent HNO, and sand-blasted. A layer 16 comprising molten Al or a paste of approximately 30-50 per cent by volume of Al powder 10- 20 per cent of binder such as lacquer or resin solution and 30-50 per cent of a thinner or solvent such as acetone. is then sprayed or painted on after which the valve - preferably pre-heated to 1000-1100‹F. - is immersed to the line a-a and rapidly rotated or longitudinally reciprocated in a molten flux bath consisting of 37-57 per cent by weight KC1. 25-45 per cent Na C1 8-20 per cent Na 3 A1F 6  and 0.5-12 per cent Al F 3  which is maintained preferably at 1325-1375‹F If the flux is incorporated in the coating paste, heating should be in an inert or reducing atmosphere.
Patent GB-862268-A (GB)
Title: New or improved means and methods for securing flexible members of elongated form
IPC: A47G27/02
Filed: 1957-08-10
Abstract: 862,268. Link mats. NUWAY MANUFACTURING CO. Ltd., and PALMER, D. J. July 29, 1958 [Aug. 10, 1957], No. 25306/57. Class 142(4) [Also in Group XXV] Links 10 of a link mat are of fibre - bearing rubber or of wood assembled on nylon monofilaments or braided or corded groups of filaments 12 knotted at their ends and accommodated in aluminium or synthetic resin members 18 peened over at 17 to grip the end 20 of the cord. The end 20 may be heated to fuse the filaments into the form of a knob to prevent fraying.