baber/WOPTO huggingface dataset:
Patent GB-1011157-A (GB)
Title: A method and a machine for cutting and/or treating threads of rod-shaped work pieces
IPC: B23G1/32
Filed: 1963-04-29
Abstract: 1,011,157. Cutting and grinding screwthreads. SIGFRID STENBERG A.B. April 29, 1963 [April 30, 1962], No. 16663/63. Headings B3B, B3D, B3K and B3T. In a method of cutting or grinding a thread, a guide-screw is attached to the work and moves through a stationary nut to guide the work until the threads on the work itself engage the nut and act as a guide. A cutter 11 is carried by a head 9 angularly adjustable on a housing 6 carrying a motor 7 and angularly adjustable on a slide 5. A slide 15 carries a work-slide 18. The slide 18 carries a work-guide 19, a burr-removing trimming tool 21, Fig. 3, the guide-nut 24 and a fluid-cleaning and brushing unit 23. The screw is rotated by a motor 34 mounted on a tailstock 27 moving on rollers 28 engaging guide rods 31. The screw 25, Fig. 5, is attached to the work by a driving- wedge 42 and an elongated screw-threaded rod 37, 35, 36. The guide nut is in two parts to allow back-lash elimination. The cutter is first engaged with the end of the guide-screw threads. If a multi-start thread is to be cut, the guide-screw may have only one start and the work be indexed between cuts.
Patent GB-1094642-A (GB)
Title: Improvements in or relating to filters for tobacco smoke
IPC: A24D3/04
Filed: 1963-04-29
Abstract: 1,094,642. Tobacco smoke filters. G. L. TOROK. July 29, 1964 [April 29, 1963; July 13, 1964], Nos. 16700/63 and 28782/64. Headings A2C and A2M. A composite tobacco smoke filter comprises a section 1 which may consist of cotton wool or cellulose acetate fibres, a centre section 2 which may consist of cotton wool cellulose acetate fibre asbestos flock, silica gel, activated charcoal, granulated sugar or plastic sponge, and a section 3 similar to the section 1, the sections being separated by at least two perforated discs 4. The section 2 may be treated with tacky diluted oil. The discs 4 may be made of polystyrene or filtering paper. The filter may form part of a cigarete or may be formed with a transparent housing for insertion into a cigarette holder or tobacco pipe.
Patent GB-551879-A (GB)
Title: A method of making pen nibs
IPC: B21D53/76
Filed: 1941-03-05
Abstract: 551,879. Making pen nibs. SHEA, J. A. March 5, 1941, No. 16712/42. Convention date, March 21, 1940. Divided out of 549,849. [Class 83 (ii)] Nibs, particularly those for fountain pens and of stainless steel containing about 4 per cent of molybdenum, made from strip as described in Specification 549,849, have the points finished by pressure which effects hardening and rounding simultaneously. The flat point 21, 22, Fig. 6, is first pressed effecting rounding at 23, Fig. 5 ; next the point is bent by pressure forming a V 25, Fig. 6, and rounded surface 24, further pressure and bending closing the edges of 21, 22 together at 26, Fig. 7, and forming a curved indentation in the surface 24 with reduction in volume, and pushing the curved ink-feed channel 27. The point is then slit causing lateral separature and displacement of the tips and in finishing operations these are closed and then laterally aligned.
Patent GB-237090-A (GB)
Title: Improvements in and relating to duplicating
IPC: B41N1/24
Filed: 1924-07-11
Abstract: 237,090. Gestetner, D. July 11, 1924. Stencils and stencilling. - In duplicating by means of flexible stencil sheets adapted to be stencilized by pressure or produced by photographic means, a sheet provided at intervals with ink-resisting elements is arranged behind or in front of the stencil in order to economize ink and prevent it from spreading unduly. The sheet may consist of felted or woven filaments, constituted. e.g. by Yoshino paper or finely-woven lawn, and the ink-resisting elements may be arranged in lines, dots, reticulations, &c. A sheet so prepared may be associated with a stencil or it may be combined with a stencil or a sheet adapted to be stencilized by pressure. In preparing the poroussheet, it may be coated with a light sensitive coating, printed behind a lined, dotted, or reticulated transparency and finally treated to remove the parts not acted on by light. By a second method. a lined &c. image may be formed on a pellicle of bichromated gelatine on a backing from which it is transferred to a support for development, it being thereafter transferred to the porous sheet. According to a third method, engraved rollers areused to print on the porous sheet in an ink-resisting material. In a combination stencil sheet including a sheet adapted to be stencilized by pressure and a porous sheet having lines &c. thereon, the two sheets may be secured together and to a backing or protective sheet. Alternatively, the porous sheet may be coated with a composition adapted to be stencilized by pressure, or with a gelatinizing organic colloid and a tempering- agent. With a stencil so prepared, a second porous sheet provided with lines &c. may be employed, or such a sheet may be used with a stencil prepared according to Specification 148,626. The Yoshino paper used in preparing the porous sheet may be strengthened by lightly sizing it with a water-insoluble glaze.
Patent GB-1254484-A (GB)
Title: POLYMER SOLUTIONS CONTAINING POLY-alpha-AMINO ACIDS AND THE PROCESS FOR THEIR PREPARATIONS
IPC: C08J3/09
Filed: 1969-03-31
Abstract: 1,254,484. Poly - α - aminoacid solutions. KYOWA HAKKO KOGYO CO. Ltd. 31 March, 1969 [4 April, 1968], No. 16736/69. Headings C3H and C3R. A solution comprises a poly-x-amino acid P and a solvent S including at least one compound where is' 2-4 and R is H, C 1-8  alkyl, phenyl, or tolyl, or these groups having 1-3 halogen or nitro substituents. Polyaminoacid P may be a homopolymer, a copolymer, which may be block copolymer, or a polymer blend, of the L-, D-, or DL-aminoacids. P may have M.W. of 100,000-300,000. The solution may contain 5-20% wt. P. The aminoacid may be the #- monoester of aspartic acid, the y.monoester of glutamic acid, 0-substituted serine or threonine, alanine, methionine, N<SP>#</SP>-substituted lysine, N<SP>#</SP>- substituted ornithine, N<SP>guanido</SP>-substituted arginine, isoleucine, leucine, tyrosine, or tryptophane. Solvent S may be N-methyl-2-pyrrolidone, N-ethyl-2-pyrrolidone, or 2-pyrrolidone. The solution may be formed by adding S to P while heating to 50-100 C. The solution may be used to form films or filaments, e.g. by evaporating the solvent, or by coagulating in a bath, which may be HgO and/or methanol or acetone. The filaments may subsequently be stretched.
Patent GB-1476707-A (GB)
Title: Printing plate arrangement
IPC: B41F13/08
Filed: 1975-04-23
Abstract: 1476707 Web-fed printing. ROCKWELL INTERNATIONAL CORP 23 April 1975 [28 June 1974] 16768/75 Heading B6C In a rotary web press, printing plates 31, 31<SP>1</SP>, 31<SP>11</SP> are, offset from each other around the plate cylinder 11 by between 48 and 57 degrees: to reduce vibrations. An impression cylinder 12 has blankets 33, 33<SP>1</SP>, 33<SP>11</SP> each with a slit 34, 34<SP>1</SP>, 34<SP>11</SP> respectively, arranged to coincide with gutters 32 in the printing plates. Plate clamping assemblies are actuated by shafts which extend to the ends of cylinder 11.
Patent GB-759220-A (GB)
Title: Improvements in control valves
IPC: G05D7/01
Filed: 1954-06-09
Abstract: 759,220. Fluid-circulating systems deriving heat from internal combustion engines. DOLE VALVE CO. June 9, 1954 [June 16, 1953], No. 16946/54. Class 64(2). [Also in Group XXIX] An air-heating unit 15 in a vehicle driven by an internal combustion engine is supplied with hot water from the engine water jacket through a valve 10 (see Group XXIX) which maintains a substantially constant flow of water despite variations of engine speed. The water outlet from the heater passes through a hose 16 to the suction side of the water pump of the engine. The rate of flow is adjustable manually by a Bowden wire 37 which moves a tapered metering pin relative to a centrally apertured, flow regulating diaphragm in the valve. The metering pin is also movable to a position in which it cuts off flow completely.
Patent GB-777181-A (GB)
Title: Improvements in photographic sensitive materials
IPC: G03C1/015
Filed: 1955-06-14
Abstract: 777,181. Photographic emulsions. KODAK, Ltd. June 14, 1955 [June 29, 1954], No. 17104/55. Class 98(2) A photographic emulsion which is highly susceptible to Clayden desensitization is prepared by adding in a period of from 2 to 10 minutes an aqueous solution of a water-soluble silver salt such as silver nitrate to an aqueous gelatin solution containing at least 0.5 moles of a water-soluble chloride per mole of silver with or without up to 0.1 moles of a water-soluble bromide per mole of silver, and adding after the commencement of the addition of silver salt an aqueous solution containing between 0.1 and 0.5 moles of a water-soluble bromide per mole of silver, and continuing such addition of water-soluble bromide at least until all the silver salt has been added, the total water-soluble bromide and chloride being in molar excess of the silver salt. The additions may be carried out at 50 to 95‹C., but preferably at about 70‹C. It is preferred to add the silver salt during six minutes and to add the bromide during the last five minutes of that time. After addition of the salts, the emulsion is preferably stirred at about 70‹C. for 10 minutes, more gelatin is then added and stirred for 4 minutes at about 70‹C. and the emulsion then cooled to 30‹C. Soluble salts are then removed by washing or by coagulating the emulsion with sodium sulphate, rinsing and redispersing in water. A sulphur sensitizer mav be added as described in Specification 235,211 [Class 98(ii)]. The susceptibility to Clayden desensitization may be further enhanced by adding a merocyanine or hemioxonol dye as described in Specification 773,388. Specification 699,659 also is referred to.
Patent GB-1384583-A (GB)
Title: Supercharged engines
IPC: F02F1/24
Filed: 1972-04-13
Abstract: 1384583 Charging engines; valves; engine turning gear; regulating POWER RESEARCH & DEVELOPMENT Inc 13 April 1972 [20 April 1971] 17125/72 Heading F1B and F1K A super-charged piston engine comprises a crank-case having an inlet through which a fuel/ air mixture is drawn from a carburetter and an outlet communicating with a reservoir 78, Fig.2 having a volume several times greater than the piston swept volume, valves 50, 68 in the inlet and outlet arranged so that the piston pumps the mixture under pressure to the reservoir which is connected through a passage 82, having a manual throttle 88 and a valve 90, to the combustion chamber. Mixture is drawn through carburetter 32 into crank-case 34 via reed valves 50 and is compressed by the pistons for delivery via reed valves 68 and casing 76 to the reservoir 78 and thence via valve 88 and inlet valve 90 to the combustion chamber 80. The valve gear is lubricated by a passage leading from a sump 149. Cooling air is supplied by a crank-shaft driven fan 112, Fig.3. A starter motor (126), Fig.1 (not shown), turns the crank-shaft through a chain 130 and clutch 134. In another embodiment the fuel/air mixture is fed at low speeds through an inlet passage 236, Fig.7 (not shown) and at higher speeds through a second inlet passage 226, Fig.8 (not shown), controlled by a sleeve valve 240 in dependence on crank-shaft speed. In another embodiment, the compressed mixture is further compressed in a vane type pump (314), Fig.9 (not shown) and a diaphragm (360) responsive to the pressure in a carburetter throat automatically adjusts the latter to maintain the correct ratio. In a modification of this embodiment the throttle in the carburetter throat is linked to the throttle in the inlet passage between the reservoir and the engine.
Patent GB-988111-A (GB)
Title: Process for the manufacture of hoe blades
IPC: B21K19/00
Filed: 1963-05-01
Abstract: 988,111. Hoes. SCHWABISCHE HUTTENWERKE G.m.b.H. May 1, 1963 [May 3, 1962], No. 17127/63. Heading A1B. [Also in Division B3] Hoe blades are made by cutting blanks 1, 1<SP>1</SP>, Fig 11a, each consisting of a blade portion 1a and socket portion 1b from a metal strip P and working them to finished shape, Fig. 16, in a single heating. The socket portion 1b is first pressed into cup shape and then pierced, Figs. 13, 14 (not shown) and the blade portion rolled in its longitudinal direction, Fig. 15 (not shown). Finally the blade is cut to final shape, curved, ground and polished.
Patent GB-595526-A (GB)
Title: Improvements in or relating to apparatus for stirring or agitating liquids under vacuum
IPC: B01F15/00
Filed: 1945-07-05
Abstract: <PICT:0595526/III/1> Apparatus for stirring or agitating liquids under pressures substantially below atmospheric, e.g., vacuum distillation apparatus, comprises a vacuum vessel, stirring or agitating means therein, and a mercury seal through which said means passes into the vessel and in which the mercury may rise so as to counterbalance the atmospheric pressure.  A stirrer is mounted on a rotary shaft 5 which passes into a vacuum vessel 1 through a mercury seal comprising a mercury bath 10 affixed to the lid 2; a fixed tube 8 mounted concentrically with the shaft 5, and a tube 9 surrounding and rotatable with the shaft 5.  Multiple mercury seals may, alternatively, be provided.
Patent GB-474094-A (GB)
Title: Purification of water used in air washers for air conditioning
IPC: F24F3/12
Filed: 1936-06-20
Abstract: 474,094. Ventilation systems. GROAK, I. D., and ORR, F. B. June 20, 1936, No. 17249. Convention date, June 20, 1935. [Class 137] [Also in Group XII] In purifying a stream of air by contact with water, a variable portion of the water is withdrawn, purified and restored to the circulation without interruption of the air purification or water circulation. Air, preferably after passage through a filter and over a heating coil, enters at 1 a tower 2 containing a cooling coil and is sprayed from nozzles 9 connected by a pipe 8 to a pump 6 circulating water from the base of the tower. The impurities are removed from the water, which may contain a corrosionpreventing chemical such as alum, at the same rate at which they are removed from the air. Some of the water is byepassed by a valve 12a through a pipe 12 to a filter 13 containing a screen 14 and layers of carbon, material known under the Registered Trade Mark " Celite," quartz and gravel, whence it passes through a screen 19 to ozone and water mixers 22, 23 with separate valves 24, 25. Ozone generators 36-38 are activated by a pressure switch 32 actuated by water pressure in the pipe 12. The water next passes by a pipe 57 into a filter tank 58 similar to the filter 13 and hence through a pipe 63 to the tower 2. Ozone from the generator 38 may be added by a pipe 53 to the washed air. The air may finally be heated and humidified to a controlled extent.
Patent GB-202936-A (GB)
Title: Improvements in or relating to machines for labelling packets, boxes and the like
IPC: B65C9/08
Filed: 1922-03-23
Abstract: 202,936. Day, A. March 23, 1922. Coating-machines. - In labelling-machines of the kind described in Specification 200,878, wherein a label coated with adhesive on its underside is placed under a bottomless box 23 and a ram 21 pushes a packet or other article 166 and the label into the box, the gummed labels are taken alternately from each of a pair of revolving pads 15, 16 having faces and the supply of adhesive to the pads from a roller carried by pivoted arms 78 is controlled by cams 70 secured to the same axis as the pads, the cams having semicircular ends joined by parallel straight surfaces lying in the planes of the faces of the pads. The pads and the cams 70 are rotated intermittently by a ratchetwheel operated by a crank on the main shaft 12, a band-brake being applied after each half-revolution and detents operated to hold the parts while a gummed label is taken from the upper pad and a label is applied to the bottom pad from a holder 13.
Patent GB-237240-A (GB)
Title: Improvements in devices for charging grease into grease pumps or grease guns
IPC: F16N37/02
Filed: 1925-07-07
Abstract: 237,240. Kreidel, H., (Assignee of Lub Ges.). July 17, 1924, [Convention date]. Hand devices for filling tubes.-In a device for filling grease into grease guns and pumps and in which a grease removing device e is formed with a plate-shaped portion f adapted to fit the internal periphery of a scoop a formed with an open end and a longitudinal slot b, a transverse slot k adjacent the closed end extends from the slot b to the middle of the scoop to permit the portion f of the removing device e to be inserted in the scoop after it has been filled with grease. To adapt the removing device for removing surplus grease from the scoop it is formed with a recessed portion h which fits the outer periphery thereof.
Patent GB-256757-A (GB)
Title: Process of treating fibrous vegetable materials for the production of cellulose
IPC: D21C9/12
Filed: 1925-07-07
Abstract: 256,757. Chemische Fabrik Griesheim- Elektron, and Wenzl, H. July 7, 1925. Pulp, preparation of; waste products, treatment and utilization of.-In the preparation of cellulose from wood, straws, or other fibrous vegetable material, the acid sulphite and bisulphite lyes of the alkali metals, preferably sodium, are used. The acid character and effectiveness of the lye may be modified by the addition of neutral sodium sulphite or sodium chloride, or by partly neutralizing the lye with lime or calcium carbonate, or by the use of combined sodium and calcium bisulphite lye. The material may be boiled with the lye or saturated therein and the excess lye removed and the mass then steam heated to 100‹ C. and upwards for one or several hours. The mass so obtained is then subjected to the action of chlorine, either in gaseous form, or in solution. to produce a pure cellulose. Washing before chlorination may be omitted, the lye remaining in the mass being used up to neutralize the hydrochloric acid produced during the chlorination. Alcohol and tanning materials may be obtained from the waste lye in known manner. ,
Patent GB-255111-A (GB)
Title: An improved process for purifying solutions
IPC: B01D1/18
Filed: 1926-07-12
Abstract: 255,111. Vollenhoven, C. van. July 11, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Spray evaporators; film evaporators. - Solutions such as ammoniacal liquors to which sulphuric acid has been added, are concentrated or evaporated to dryness and purified by being brought in a finelydivided condition into contact with gases such as waste gases from furnaces, &c. or chemically active gases at a temperature sufficiently high to remova all volatile impurities such as phenol, tar, &c. The hot gases are supplied by a pipe c to a chamber c into which the solution is sprayed from a nozzle b bv a pump a or which contains alternately inclined baffles down which the solution trickles. A hood f prevents entry of solution into the pipe e. The solution may pass by a pipe g to a crystallizing vessel h having a sloping base and hanging baffles i. The mothor liquor is returned to the pump a by a pipe m.
Patent GB-356746-A (GB)
Title: Improvements in high potential transformers
IPC: H01F38/26
Filed: 1930-06-05
Abstract: 356,746. Transformers. KOCH & STERZEL AKT.-GES., 40, Zwickauerstrasse, Dresden, Germany. June 5, 1930, No. 17461. Convention date, June 6, 1929. Addition to 356,693. [Class 38 (ii).] Relates to voltage transformers for use on high tension circuits in which the high tension winding is arranged on an insulating spool 11 and the connection to the high voltage line is brought out from the inner layer of the winding as described in the parent Specification, and consists in jacketing the spool in a two-part insulating member, the parts 46, 48 of which are threaded into the spool from opposite ends. Fig. 1 shows a form in which the meeting edges of the two parts overlap to a slight extent. Fig. 2 shows an alternative form in which the parts overlap throughout the full axial length of the spool. The spaces between the insulating parts are filled with liquid or solid insulating material or cement having dielectric constants similar to those of the insulating parts.
Patent GB-174649-A (GB)
Abstract: 174,649. Reading, H. C. Dec. 17, 1920. Two stroke - cycle engines.-In an engine having a pair of cylinders with pistons, each of two diameters, connected to cranks 180‹ apart, the annular pump space h of one cylinder is cross-connected to the combustion space of the adjacent cylinder. A recess g in the piston registers with an outlet port leading to a transfer passage f when the piston is at half instroke. Reference has been directed by the Comptroller to Specification 29055/12.
Patent GB-477048-A (GB)
Title: Improvements in or relating to wireless receiving apparatus
IPC: H04B1/26
Filed: 1936-06-25
Abstract: 477,048. Valve circuits for wireless reception; impedance networks. TRUEFITT, E. S. V. June 25, 1936, No. 17629. [Classes 40 (iii) and 40 (v)] For excluding undesired signals having the intermediate frequency from a superheterodyne frequency-changer valve 1, a band-pass filter comprises two circuits 2, 3, 7, 6 and 4, 5, 7, 6, which are tuned to the desired signal and are coupled by an impedance 6, 7 tuned to the intermediate frequency. The latter may be 465 kc./sec., so as to lie between the long and medium wave-bands, and a uniform response may be obtained by choosing the aerial inductance 8 so that an aerial of average capacity is tuned to the intermediate frequency. The gain-control voltage may be applied through conductor 9 to the midpoint of the coupling impedance 7, 6. Instead of the inductance 6, the mutual inductance between coils 2 and 4 may resonate with the condenser 7. Specification 401,316 is referred to.
Patent GB-1116950-A (GB)
Title: Production of 1,2,4-trimethyl-5-isopropyl benzene
IPC: C07C2/70
Filed: 1967-04-18
Abstract: 1,2,4 - Trimethyl - 5 - isopropylbenzene is produced by propylating pseudocumene in the presence of a catalyst which is H3PO4.BF3 or AlCl2.H2PO4 or AlCl2.H2PO4 saturated with BF3.  Excess propylene is preferably used.
Patent GB-965709-A (GB)
Title: An improved process for producing activated carbon
Inventor: MAGGS FREDERICK ARTHUR POMROY
IPC: C01B32/336
Filed: 1959-05-25
Abstract: Activated carbon is produced by heating a bed of granular carbonaceous material, e.g. anthracite, semi-anthracite, dry steam coal and precarbonized coconut shell, to a temperature of 800-950 DEG C. and subjecting the bed to a stream of hot activating gas, e.g. steam, preheated before it enters the bed to a temperature of at least 800 DEG  C. and about that of the bed, the gas being arranged to flow upwards through the bed with a velocity sufficient to form a fluidized bed. In the drawing, the reactor consists of a ong lagged metal tube 1 made, for example, of stainless steel which forms a tubular furnace within which a bed of carbonaceous material 2 is supported by gauze 3 above steam generator 4, fresh carbonaceous material being fed into the <PICT:0965709/C1/1> furnace from hopper 5 through valve 6 and the bed being maintained at a constant height by means of an over-flow tube 7 which descends through the centre of the tube 1.  Tube 7 has a controlling outlet valve 8 and outlet tube 9 is provided to remove the hot spent activating gases and is coiled below the bed to form a heat exchanger 10.  The bed 2 is heated to 800-950 DEG  C. by the surrounding furnace heater 11 and steam is produced from the water 12 by heat from the heat tube 9 and the heated lagged main tube 1. To facilitate the transfer of heat to the gas stream an auxiliary fluidized bed containing, for example, alumina granules may be positioned below the bed of carbonaceous material. The Provisional Specification refers to effecting the activation of the carbon at 700-1000 DEG  C.