baber/WOPTO huggingface dataset:
Patent GB-308461-A (GB)
Title: Improvements relating to platen-shift mechanism of typewriting machines
IPC: B41J11/14
Filed: 1928-03-16
Abstract: 308,461. Salter & Co., Ltd., G., Bache, E. W., and Grice, J. March 16, 1928. Platen-shift mechanism; shift-key actions; key locks.-In mechanism comprising a platen frame shiftable by means of a vertically movable bar, the platen frame is locked when shifted by means of a catch or hook which is operated by the shift-locking key and co-operates with a projection on the bar. In the mechanism shown in the Figure, the platen frame 1 is connected to the carriage 2 by means of rocking arms 3 carrying a rail 4 engaging a roller 9 on a depressible bar 6 which is guided by a slot 7 and is connected to an arm 10 on a shaft 11. Shift-key levers 12 have rollers 16 engaging projections 18 on the shaft, and one of these key-levers carries a pivoted locking-key 21 which is provided with a roller 23 co-operating with an abutment 24. A locking-hook 31 is secured to a shaft 30 provided with an arm 29 connected by a link 28 to a lever 26 which is pivoted on the framework and is arranged in the path of a pin 25 on the locking-key. On depression of the locking-key, the platen frame is raised by the bar 6 and when the roller 23 passes under the abutment 24, the lever 26 is rocked by means of the pin 25. The hook is thereby moved into engagement with a projection 33 on the bar and the platen frame is locked rigidly in shifted position. On slight further depression of the key-lever 12 associated with the locking- key, a spring 34 releases the locking-hook and locking-key. Alternatively, release may be effected by depressing the non-locking shift-key lever, a shaft 37 actuated thereby being provided with an arm 38 having a pin 39 which engages a bend 40 in the link 28.
Patent GB-211731-A (GB)
Title: An improved stropper for gillette pattern safety razor blades
IPC: B24D15/10
Filed: 1923-10-15
Abstract: 211,731. Maywhort, G. Oct. 15, 1923. Razors, safety. A A holder for use in stropping s a f e t y - razor blades comprises two parts A, B, triangular i n cross-section a n d connected together at one end by a rivet D, the heads of which are disposed in recesses C in the parts. The parts normally spring apart for the insertion of the blade J which is clamped in position by a thumb-screw H at the other end of the parts. The part B has a tang K for insertion in a wooden handle.
Patent GB-204080-A (GB)
Title: Improvements in or relating to printing on india rubber and the production of articles thereby
IPC: B29C37/00
Filed: 1922-03-20
Abstract: 204,080. Plantation Rubber Manufacturing Co., Ltd., and Dessau, M. M. March 20, 1922. Printing materials; enamels &c.-A photographic emulsion is applied to a rough surfaced sheet of raw rubber (crÚpe), an image is produced by direct contact with a negative or otherwise, the image is fixed, a film of transparent latex is applied to the surface, and the whole is cold vulcanized as by the Peachey process.
Patent GB-640115-A (GB)
Title: Synthesis of oxygenated organic compounds
IPC: C07C27/22
Filed: 1948-03-18
Abstract: In producing oxygenated compounds by catalytic conversion of carbon monoxide and hydrogen to olefins, and reaction thereof with carbon monoxide and hydrogen in presence of an oxygenation catalyst, the olefins are treated with an alkaline agent, preferably an oxide or hydroxide of an alkali or alkaline earth metal, to remove acidic materials before subjecting them to reaction.  The alkaline material may be used in solution or solid form at normal or elevated temperature.  Thus, 1-20, preferably 3-15 per cent caustic soda is suitable at 50-300 DEG , preferably 50-100 DEG  F.  The initial olefin synthesis may be effected using a fluidized iron catalyst at 500-800 DEG  F. and 5-50 atmos.  The products are separated into gases, a hydrocarbon liquid, and an aqueous liquid layer.  The hydrocarbon layer is fractionated to separate a fraction of boiling range of about 50-100 DEG  F. within the limits of about 100-600 DEG , preferably 250-400 DEG  F.  This fraction is passed through a packed chamber together with an alkali solution, and the treated product separated into an aqueous layer, which is acidified with a strong inorganic acid to free the organic acids which are recovered, and a hydrocarbon layer which is dried with for example, calcium chloride or alumina, mixed with about 0.1-5 per cent of catalyst such as cobalt stearate or naphthenate, and passed to the top of a reactor operated at about 250-400 DEG  F. and 3000 p.s.i., to the bottom of which is fed a mixture of 0.5-2 vols. of hydrogen to 1 vol. of carbon monoxide. Oxygenated products and unreacted olefins pass to a catalyst removal zone at about 200-450 DEG  F., to which hydrogen from a later stage may also be fed.  Metal carbonyl is decomposed with deposition of metal, and carbon monoxide and hydrogen withdrawn and may be converted to methane.  The oxygenated products are hydrogenated to convert aldehydes and ketones to alcohols. Examples illustrate the increased conversion when olefin fractions boiling at 250-300 DEG , and 350-400 DEG  F. are treated respectively with 5 and 10 per cent caustic soda at 70-90 DEG  F. for 12 minutes prior to reacting with carbon monoxide and hydrogen.
Patent GB-633864-A (GB)
Title: Improved method of producing higher molecular weight alcohols
IPC: C07C29/147
Filed: 1947-03-25
Abstract: The production of alcohols of at least eight carbon atoms per molecule by reduction of their carboxylic esters with molten sodium in an alcoholic solvent, and wherein the reactants are dried to a moisture content of less than .001, preferably less than .0001 per cent, as described in Specification 589,380, is effected in continuous manner.  Controlled amounts of the ester and, for example, amyl or butyl alcohol if desired admixed with hydrocarbons, are mixed and fed with molten sodium to a mixer having high dispersive capacity wherein temperature rises to about boiling point.  The products are led to a tank from which hydrogen is vented by a release valve, the solution of alcohols in the solvent being worked up as in the prior Specification referred to.  Air is excluded from the apparatus. Higher temperatures may be used by working under pressure.  In an example, coconut oil and butyl or amyl alcohol, in proportions of 20 : 100 parts by weight, and 9 parts of sodium are treated in a mixer, the inlet temperature being about 100 DEG  C. and the outlet 150 DEG C.  The Specification as open to inspection under Sect. 91 comprises further examples using sperm oil and butyl stearate, and for the reduction of coconut oil at a pressure of 4-5 kg./sq. cm.  This subject-matter does not appear in the Specification as accepted.
Patent GB-739520-A (GB)
Title: Improvements in or relating to sound recording or reproducing apparatus
IPC: G11B15/34
Filed: 1954-03-19
Abstract: 739,520. Sound-film apparatus. GENERAL PRECISION LABORATORY, Inc. March 19, 1954 [Nov. 10, 1953], No. 8162/54. Class 40 (2.) A film or tape recorder/reproducer is provided with freely rotatable sprocket means to engage the entering and leaving portions of the tape to maintain a loop of fixed length, against a part of which loop the recording head is pressed, and mechanical filtering means for smoothing the motion of the film past the said head. In the embodiment shown, Fig. 2, the film is drawn from a supply reel 14 through a sound unit 15 by means of a sprocket 18. The film enters over a free pulley 23 and leaves over a similar pulley 46, and intermediately passes in two directions over a freely rotatable sprocket 25 so that a bight of fixed length is formed around pulleys 29, 33, 36, 41. The pulleys 29, 41 are carried on spring-loaded arms 32, 43 respectively to cause the film to be pressed against a magnetic recording head or heads 38. The shafts of the pulleys 33, 36 carry flywheels 51, 52 respectively, Fig. 3. The arm 43 carrying the jockey pulley 41 is fitted with an adjustable spring connection 63 to counteract the effect of gravity on the pulleys 29, 41. The shaft 54 carrying the arm 43 is provided with frictional means, in the form of an oil drag, to prevent oscillation of the jockey pulleys 29, 41. The apparatus may be part of a sound and picture projector, Fig. 1, in which the film enters the sound reproducer 15 before passing into the picture projector 13. Four magnetic heads may be employed, so that four sound tracks, one on each side of each row of sprocket holes, may be recorded and reproduced.
Patent GB-1345291-A (GB)
Title: Mixing faucets
IPC: G05D23/13
Filed: 1972-02-23
Abstract: 1345291 Valves D TRUBERT and M TRUBERT 23 Feb 1972 [9 March 1971] 8285/71 Heading F2V A mixing faucet having a hot fluid inlet 2 and a cold fluid inlet 3, comprises a valve member 31 movable between two seats 13, 34. In the shown position of the valve member 31, the hot and cold fluids pass through orifice 38 into mixing chamber 39 and thence through passages 42, 43 to outlet 46. Seat 13 can be moved axially by rotating a handle 7 to regulate the quantity of mixed fluid delivered. Complete shut-off is achieved by moving seat 13 downwardly until the valve member 31 is compressed between its seatings. The temperature setting for the mixture is adjusted by rotating a cap 25 to adjust the axial position of a thermostatic cap - sule 16 connected to the valve member. The complete assembly of movable parts may be removed as one unit by unscrewing at connection 4, 5.
Patent GB-609857-A (GB)
Title: Improvements in variable permeability tuning devices
IPC: H01F21/06
Filed: 1946-03-18
Abstract: 609,857. Inductances. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 18, 1946, No. 8345. Convention date, March 17, 1945. [Class 38 (ii)] [Also in Group XL (c)] A variable permeability tuning device comprises at least two coaxial inductance windings, an axially movable magnetic core and a switch for connecting the windings in series aiding or parallel aiding relation for operation in different frequency bands. A pair of bi-filar windings 2, 3 are wound in the same direction on an insulating former. The windings are preferably single layer solenoid windings having equal spacing between turns and the same length and diameter. The high potential end of winding 2 is connected to the control grid of a valve 6, which may be the radio frequency amplifier or the converter of a radio receiver. Windings 2 and 3 may be connected in series or parallel by band change switch 8. A trimmer condenser 18 is connected between the high potential end of winding 2 and the earthed low potential end of winding 3. The circuit is tuned by adjusting a ferromagnetic core 17, and the distributed capacity of the windings is such that the range covered with the windings in series does not substantially overlap the range covered with the windings in parallel.
Patent GB-463349-A (GB)
Title: Improvements in or relating to measuring valves for use with collapsible tubes
IPC: B65D35/40
Filed: 1936-03-20
Abstract: 463,349. Collapsable tubes. ETABLISSEMENTS BETTS ET BLANCHARD. March 20, 1936, Nos. 8409 and 8410. Convention dates, March 25, 1935 and Nov. 13, 1935. [Class 125 (iii)] A measuring valve for use with collapsable tubes comprises a tubular valve member B open at one end H and having at the other end a flange K and radial holes G. The member is adapted to slide in the nozzle of the tube F with the flange inside the tube. If with the valve in the position shown in Fig. 2 the tube is pressed, some of the contents pass through holes G into the valve and out through the open end H, the pressure on the tube also serving to move the valve to the position shown in Fig. 1 in which the flange seats against the end of the tube and further discharge is prevented. When the usual cap is screwed on to the tube the valve is restored to its former position. In a modified form, Fig. 8, the cap 3 screws on to the end of the valve which after removal of the cap must be pressed inwardly before the material can be discharged.
Patent GB-994151-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J1/142
Filed: 1962-03-05
Abstract: 994,151. Cathode materials. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 5, 1962 [March 8, 1961], No. 8435/62. Heading H1D. A cathode for a thermionic valve or other electric discharge tube comprises a metal cathode body 2 carrying outermost an emissive barium-activated alkaline earth metal oxide 4, and interposed therebetween, a substratum layer 3 of oxidic alkaline earth metal compounds containing barium and, in addition, a reducing agent which releases barium from the oxidic compounds in the operation of the valve. The emissive layer 4 preferably consists of strontium oxide or a mixed oxide of barium and strontium, the substratum layer 3 of a double or triple alkaline earth metal oxide with titanium hydride (e.g. 3% by weight) as a reducing agent and the cathode body 2 of electrolytic nickel or cobalt. In manufacture, the two layers are sprayed on until layer 3 is 60Á thick and layer 4 is 20Á thick. Specification 929,002 is referred to.
Patent GB-118581-A (GB)
Title: A New or Improved Method and Means for Discharging Molten Metal in the Manufacture of Glass Articles.
Inventor: MCCAULEY ROBERT EMMETT
IPC: C03B7/08
Filed: 1918-05-21
Abstract: 118,581. McCauley, R. E. May 21, 1918. Delivering molten metal.-Relates to arrange. ments in connexion with glass-melting tanks to secure that the metal delivered is of uniform character by preventing its being unequally chilled at the cooler end of the tank. In the arrangement shown in Fig. 1, the tank is fitted with a transverse dam 11 formed in one with an horizontal part 11<a> which rests on the top of a cylinder 12 forming the conduit to the outlet 8<a>. The arrangement causes the metal to pass round the cylinder 12 and then upwards at the wall 9 of the tank as shown by the arrows. The invention is shown as applied to apparatus of the type described in Specification 113,665, in which the discharge is pneumatically controlled through a cylinder 10. In a modification, the dam is formed as an open cylinder with the opening towards the wall 9, and extends to the bottom of the tank.
Patent GB-526463-A (GB)
Title: Improvements in and relating to soot blowers
IPC: F28G15/04
Filed: 1939-03-16
Abstract: 526,463. Escapement mechanism. REYMER, M. March 16, 1939. No. 8498. Convention date, March 16, 1938. [Class 80 (iv)] [Also in Groups XXVIII and XXXII] The distributer pipe 1 of a soot blower is supported on a stationary feed pipe 4 and is moved forward by the pressure of steam on the end of the pipe. A compensating weight 11 is raised by a chain attached to the pipe and passing over a chain wheel connected to two gear wheels 14. The pipe 1 is given a step-by-step movement by a pendulum 17 which rocks a shaft 16 carrying pawls on a member 15, the pawls engaging alternately the two gear wheels 14 which are arranged on opposite sides of member 15 and have their teeth staggered. The pendulum weight has a dashpot device comprising a piston 19 with restricted bore 20 slidable in the fluid-filled casing 18, the ends of which are connected by a passage 21 having a valve 22. Reference has been directed by the Comptroller to Specifications 229,718, 247,434, 247,456, and 285,964, [all in Class 99 (ii)].
Patent GB-1375331-A (GB)
Inventor: BLOMQVIST N
IPC: A61F13/00
Filed: 1973-02-21
Abstract: 1375331 Diapers; sanitary towels MO OCH DOMSJO AB 21 Feb 1973 [22 Feb 1972] 8508/73 Heading A5R  An absorption product for personal use e.g. a diaper or sanitary towel, comprises a sheet of absorptive material having a first edge and second and third edges which converge in a direction away from the first edge, the sheet being folded about first and second fold lines substantially perpendicular to the first edge to provide a first one of triple material thickness at one end of the sheet and a second zone of single thickness at the other end, the second zone being partly bounded by ridges of double material thickness. Apparatus for producing the product comprises a metering apparatus 17 which dispenses dry defibrated cellulose onto a conveyor 19, the cellulose being shredded and fed to a conveying drum 22 having perforated trapezoidal areas 24 on which the cellulose is held by a vacuum operating in compartment 26 of the drum, excess material being removed by a sweeping device 30. The trapezoidal sheets 23 are transferred to an endless conveyor 31 so as to lie between sheets 32, 33 of wet-strength paper and pass through a folding device 36. The folded strips 37 are then transferred to a conveyor 38 where a wrapper 40 is applied by passage through apparatus 41 where the edges of wrapper 40 are folded around the longitudinal sides of strips 37 so as to overlap on the upper surface thereof, a binder being applied from jet 42 to the lower edge of the wrapper. The strips then pass to a pressing and cutting device 43 and a packing station. In a modification, the drum 22 is omitted, the cellulose being deposited directly onto an endless conveyor having perforated trapezoidal areas which are either separate or form a continuous area lengthwise of the conveyor with adjacent areas being of opposite hand.
Patent GB-462784-A (GB)
Title: Apparatus for playing table games
IPC: A63F7/38
Filed: 1936-03-23
Abstract: 462,784. Making table games. COOLEY, H. March 23, 1936, No. 8566. [Class 83 (ii)] [Also in Group XV] A game apparatus comprises a circular sheet metal plate upon which a spiral curve V is formed, either by stamping out or by fixing a spiral of wire to the plate.
Patent GB-959266-A (GB)
Title: Process for removing nicotine from tobacco
IPC: A24B15/24
Filed: 1963-03-04
Abstract: A process for reducing the nicotine content of dry tobacco in bulk form comprises the steps of forcing therethrough a current of anhydrous hydrogen choloride with air, followed by a scavenging current of air or other gas which does not react chemically with the tobacco or compounds contained therein and then by a current of steam.  The current of hydrogen chloride and air is passed through the dry tobacco for 2-10 minutes at a temperature between 50 DEG  and 90 DEG F.  The tobacco is then aerated using a current of dry air for 5-15 minutes to remove any remaining hydrogen chloride after which it is subjected to a current of steam, preferably at atmospheric pressure to vaporize the nicotine hydrochloride.  The tobacco is then dried.
Patent GB-526489-A (GB)
Title: Improvements in or relating to warp knitting machines
IPC: D04B27/06
Filed: 1939-03-17
Abstract: 526,489. Knitting-machines. F.N.F., Ltd., PEEL, R., and BOWRON, A. J. March 17, 1939, No. 8591. [Class 74 (ii)] A warp machine having hook needles 7 and co - operating torques 17 mounted to reciprocate in approximately vertical direction and carried by two sets of blocks 6, 18, has one of these sets secured to a bar 1 by a clamping plate 9 which in turn is secured to the bar by bolts 11 which pass through the bar to points where they are readily accessible. More than one clamping plate may be provided. Springs 13 are arranged about the bolts 11 so that the clamping plates rise from the bar when released. The clamping plates 9 each have a projection 9a at one edge about which they are arranged to pivot. The Provisional Specification refers to Specification 512,850.
Patent GB-232203-A (GB)
Title: Improvements in sieves
IPC: B07B1/46
Filed: 1925-03-31
Abstract: 232,203. Herrmann, R. April 8, 1924, [Convention date]. Grids or gratings.-Sieves or filters consist of wires or bars provided with projections, tongues or the like adapted to abut against an adjacent wire or bar to form the sifting apertures. In one construction, Fig. 1, the wires a are provided with projections c. Fig. 4 shows another construction in which the projections c on the adjacent wires meet. A further arrangement is shown in Fig. 5 comprising plane bars a alternated with bars d having projections e. Specification 174,116 is referred to.
Patent GB-687920-A (GB)
Title: Improvements in or relating to synthetic lubricating oil
Inventor: JR PAUL VERGON SMITH
Filed: 1951-10-25
Abstract: The invention comprises esters of the formula <FORM:0687920/IV (b)/1> where Ar is a benzene or diphenyl nucleus which may be partially or fully hydrogenated, n is 1 or 2, and R is the residue of an alcohol of 4-20 carbon atoms produced by the OXO process (or mixture of such alcohols); if Ar is alkyl-substituted the total number of carbon atoms in such substituents is not more than 16. Examples show the preparation of the C8 and C13 OXO esters of p-phenylene-diacetic acid, which are lubricants.  Other suitable acids are are listed (as in the Provisional Specification), which are prepared as in the parent Specification, or by Friedel-Crafts condensation with a dibasic acid anhydride or monochloride followed by reduction of -CO- to -CH2-.  Specification 583,633 also is referred to.ALSO:Mixtures of esters of the formula <FORM:0687920/III/1> are used as lubricants; Ar is a benzene or diphenyl nucleus which may be partially or fully hydrogenated, n is 1 or 2 and R is the residue of an alcohol of 4-20 carbon atoms produced by the OXO process; if Ar is alkyl-substituted the total number of carbon atoms in such substituents is not more than 16.  Preferred are the C8 and C13 esters of p-phenylene-diacetic acid.
Patent GB-1317538-A (GB)
Title: Food product
IPC: A23L15/10
Filed: 1972-02-25
Abstract: 1317538 Food products; egg stick RALSTON PURINA CO 25 Feb 1972 [15 March 1971] 8748/72 Heading A2B A food product, in particular an egg stick, having a central solid core surrounded by a layer of solidified liquid material, is prepared by solidifying some of the liquid material around the inner periphery of a container, placing the core within still unsolidified liquid material in the centre of the container, and completing the solidification of the liquid material around the central core. The process may also be applied to the production of sausage-sticks coated with cheese, gelatin, or fat.
Patent GB-845796-A (GB)
Title: Improvements in or relating to internal combustion engines of the diesel type with a pre-combustion chamber
IPC: F02B19/08
Filed: 1958-03-19
Abstract: 845,796. Combustion chambers. SOC. D'EXPLOITATION DES MATERIELS HISPANOSUIZA. March 19, 1958 [March 21, 1957], No. 8843/58. Class 7(3). A spheroidal combustion chamber 3, having a tangential inlet 4, is formed with an upper portion A having a mean radius of curvature R 1  which is larger than the radius R 2  of the remaining portion B and the end face 5a of the injector 5 is tangential to the inner wall of the chamber 3. The radius of the chamber may decrease in a continuous manner from the part a to the part b, giving a spiral-shaped wall, but as shown the parts A and B are of constant radii R 1 , R 2 , the centres of curvature C 1 , C 2 , being spaced apart on the axis X-X of the injector 5 which is directed just above the tip b of the passage. The lower part of the chamber is formed in a block 9 which is formed with two circular-eccentrically arranged surfaces 12, 13, to ensure correct location of the chamber and is insulated from the engine block 10 by an asbestos gasket 11. The passage 4 has a lenticular-shaped cross-section.