baber/WOPTO huggingface dataset:
Patent GB-318550-A (GB)
Title: Process for the oxidation of benzene hydrocarbons
IPC: C07C45/36
Filed: 1929-09-03
Abstract: 318,550. I. G. Farbenindustrie Akt.- Ges. Sept. 5, 1928, [Convention date]. Organic oxygen compounds.-Benzene hydrocarbons possessing a closed side chain attached to the benzene nucleus, e.g. benzene polymethylene compounds such as tetrahydronaphthalene and substitution products thereof, preferably those possessing a free alpha-position in the alicyclic nucleus are subjected in the liquid phase to the action of oxygen or gases containing oxygen at an elevated temperature in the presence of an oxidation catalyst to produce oxygenated compounds. Oxidation catalysts such as the oxides or hydroxides of heavy metals, e.g., copper oxide, ferric oxide and nickel oxide in a finely divided state or the metals themselves may be used. The oxidation attacks the carbon atom in the alpha-position to the benzene nucleus, thus, from the tetrahydronaphthalene a preponderating quantity of alpha-ketotetrahydronaphthalene as well as alpha-hydroxytetrahydronaphthalene are obtained. Inert solvents may be added. In an example (1) copper oxide is added to tetrahydronaphthalene and air at 80- 90‹ C. is passed through, yielding on distillation a mixture of alpha-keto- and alpha-hydroxy-tetrahydronaphthalene, besides some dihydronaphthalene formed during the distillation, (2) copper oxide is added to ar-ethyl tetrahydronaphthalene (obtained by the action of ethylene on tetrahydronaphthalene in the presence of a metallic halide according to Specification 265,601) and oxygen is passed through giving an oxidation product consisting of a ketone, believed to be ar-ethyl-a-keto-tetrahydronaphthalene, and the corresponding secondary alcohol. From an aqueous alcoholic solution a semi-carbazone is produced by means of the hydrochloride of semi-carbazide, (3) copper oxide is added to ar-chlorotetrahydronaphthalene and oxygen is passed through giving a mixture of a chlorinated keto-tetrahydronaphthalene, with the corresponding alcohol which is a good solvent for nitrocellulose. From the aqueous alcoholic solution a semicarbazone is produced by means of the hydrochloride of semi-carbazide, (4) tetrahydronaphthalene is dissolved in chlorobenzene mixed with copper oxide and treated with oxygen giving a - keto - tetrahydronaphthalene which contains a - hydroxytetrahydronaphthalene. Specification 309,005 also is referred to.
Patent GB-429080-A (GB)
Title: Improvements in starters for internal combustion engines
IPC: F02N15/06
Filed: 1934-09-18
Abstract: 429,080. Turning-gear. BOSCH AKT.- GES., R., 4, Militõrstrasse, Stuttgart, Germany. Sept. 18, 1934, Nos. 26805 and 26806. Convention dates, Sept. 18, 1933 and Oct. 28, 1933. Addition to 385,813. [Class 7 (v)] In an electric starter having an inertia mass 4 on the armature shaft 1, and an automatic plate clutch 6 between the mass 4 and a pinion 2 movable into engagement with an engine member, as described in the parent Specification, the pinion 2 is moved into engagement by a lever 7, which releases the clutch, while a movement of the lever in the opposite direction first engages the clutch and afterwards disengages the pinion. According to the present invention, means is provided for locking the lever 7 when the pinion 2 is in engagement and the clutch 6 released, the locking means being released when the clutch 6 is put into engagement. As shown in Fig. 5, a rod d, pivotally connected to the lever 7, is slidable in a box a provided with a front cover b having an opening c, a spring-actuated locking bolt m having a limited vertical movement, and a spring q holding the rod in engagement with the bolt m. When the rod d is pulled to the right in Fig. 5 by means of a handle e to engage the pinion with the engine gear and to disengage the clutch 6, the bolt m snaps into a recess i in the rod. When the mass 4 has been set in rotation by the starting motor, the rod d is depressed into the position shown in Fig. 7, so that a recess k engages the lower edge of the opening c, the spring 8 draws the side edge of the recess into engagement with the front of the cover b, and the rod is clear of the bolt m. This movement brings the clutch into engagement. When the engine has started and the clutch 6 is automatically released by the threaded connection 3, the handle e is released by the operator and the rod d is returned to its initial position by the springs q, 8. In a modification, Fig. 8, the rod d has a pin-and-slot connection f, h with projections g on the box a, which is mounted behind an opening in the dashboard s, and the rod is connected to the lever 7 by a cord r. The box a may also be provided with a pivoted pawl t for engagement with ratchet teeth w between two recesses i, v in the rod, in order to prevent the return movement of the rod, prior to the engagement of the clutch, until the pinion is fully in engagement.
Patent GB-206326-A (GB)
Title: Improvements in or relating to clothes buttons
IPC: A44B1/34
Filed: 1922-10-04
Abstract: 206,326. Lebenhart, R. Oct. 4, 1922. Buttons.-In a two-part button not readily detachable and in which the pin member i is held in the button proper by spring tongues on a washer d<1> held in position by a member e in the button shell a<1> the lower face of which is provided with an annular groove f, the groove f is, according to this invention, interrupted at various points by flats g in order to facilitate the insertion of the washer d<1> and to prevent the button from rotating once it is secured in position.
Patent GB-1212745-A (GB)
Title: Fuel flow control apparatus, particularly for gas turbine engines
IPC: F02C7/22
Filed: 1968-06-06
Abstract: 1,212,745. Gas turbine engine fuel control. BENDIX CORP. June 6, 1968 [June 19, 1967], No. 26964/68. Heading F1G. In an engine fuel flow control apparatus, particularly for a gas turbine engine, of the type comprising a main fuel control delivering to a main conduit a flow of fuel in excess of the quantity required for optimum engine performance and a fuel by-pass control continuously withdrawing a controlled percentage of fuel from the main conduit through a branch conduit to adjust the flow of fuel supplied to the engine to the required quantity, the main conduit includes a flow measuring Venturi, the branch conduit being connected to the main conduit upstream from the Venturi and including a restricted orifice in series relationship with and located upstream of a valve responsive to the difference between the fuel pressure in the branch conduit downstream from the restricted orifice and the static pressure at the throat of the Venturi and effective to substantially equalize the pressures. The gas turbine engine shown in Fig. 1 comprises a fuel metering unit 46 controlling the fuel supply to nozzles 36 via a main conduit 40 by means of a variable area metering valve under the control of a throttle lever 48, compressor speed and compressor discharge pressure. The pressure drop across the metering valve may be regulated by means of a by-pass valve within the unit 46 controlling the flow through a by-pass conduit 53. Fuel can also be by-passed from the main conduit 40 via a by-pass control unit 54, Figs. 1 and 2. The flow through the main conduit 40 passes through the unit 54 via an inlet 62, a Venturi 70 and an outlet 64. A proportion of the flow is diverted from a point upstream of the Venturi 70 to the by-pass conduit 56 via a fixed restriction 72, variable orifices 74, 80 and a further fixed restriction 84. Orifice 80 is controlled by a valve 100 actuated by a diaphragm 102 subjected on its upper side to the pressure P 3  downstream from the orifice 74 via a fixed restriction 124 and subjected on its lower side to the pressure P T  at the Venturi throat via a fixed restriction 130. This maintains the pressure P 3  equal to the pressure P T  so that for a given setting of the valve 86 controlling the orifice 74 the flow diverted through the by-pass conduit 56 is maintained at a constant percentage of the flow through the main conduit 40. This percentage is variable, for the purpose of maintaining the turbine inlet temperature T at a constant valve, as by means of a temperature-sensing probe 58 which controls the position of the valve 86. The valve 86 may instead be controlled by a force signal derived from an engine-generated pressure dependent upon the quantity of fuel delivered to the combustion chambers.
Patent GB-602535-A (GB)
Title: Improvements in and relating to reversing gears for internal combustion engines
IPC: F01L13/02
Filed: 1945-10-16
Abstract: 602,535. Reversing-gear. AKTIESELSKABET FREDERIKSHAONS JERNSTABERI & MASKINFABRIK, KROGH, A., and KROLDRUP, A. Oct. 16, 1945, No. 27067. [Class 7 (v)] A reversing-gear, Figs. 1 and 2, for an engine of the type started by compressed air particularly diesel engines, has a handle 1 rotatable in two different planes moving in a U- shaped slot 7, the movement in the base of the slot, which is about the axis of the shaft 2, altering the timing of the fuel pump cam discs 31 and starting air distributer disc 19, whilst movement in the legs of the said slot about a pin 8 opens the starter air valve 35 through the rod 9 passing through the hollow shaft 2. Rotation of the shaft 2, slides the sleeves 14 and 14a by means of the arms 11, axially on the separate shafts 17, 18 the pins 16 thus turning the said shafts relatively to one another by their engagement in the slots 15. The fuel pump cam disc 31 is mounted on a sleeve 29 having a flange with projections 28a and 28b which may be engaged by members 26a or 26b respectively, the said members being held in or out of engagement by pawls 25a and 25b actuated by studs 21 running on the cam surface 20 of the sleeve 14 which is designed to allow only one of said members to engage the projections 28a or 28b at a time according to the direction of rotation required. The gear wheel 23 is keyed to the shaft 17.
Patent GB-1506779-A (GB)
Title: Earth loosening device on a bucket of an earthmoving machine
IPC: E02F3/40
Filed: 1975-06-26
Abstract: 1506779 Vibrating teeth on excavator bucket J ZBINDEN 26 June 1975 [8 July 1974] 27109/75 Heading B8H [Also in Division F2] Digging teeth 2 in an excavator bucket 1 are reciprocated by hammers 13 mounted on an elastically supported casing 6 containing two oppositely rotating inertia elements 3. The teeth and casing may be guided by guideways 11 and 12, Fig. 2, or by guide bars 16, Fig. 5, pivotally mounted in rubber elements 15. In another embodiment (Fig. 7) the teeth 2 are welded to the bucket, which together with the casing are guided by guide bars pivotally mounted in rubber elements, the latter being attached to a support frame.
Patent GB-363396-A (GB)
Title: Improvements in and relating to burners suitable for pulverised fuel
IPC: F23D1/00
Filed: 1930-09-11
Abstract: 363,396. Pulverulent, liquid, and gaseous fuel furnaces. WHITE, W. A. and WHITE'S MARINE ENGINEERING CO., Ltd., White Engineering Works, Prince Consort Road, Hebburn-on-Tyne. Sept. 11, 1930, Nos. 27174 and 35013. [Class 51 (i).] A furnace front suitable for use in pulverulent fuel furnaces comprises a conical casting t having the usual venturi u at its centre and formed with an arcuate peripheral air duct v which extends around more than the upper half of the furnace mouth and is exposed to the radiant heat of the furnace. The burner comprises an annular body a more or less pearshaped in cross section having a tangential fuel inlet c and enclosing a slidable air inlet d controlled by an adjustable plate i. The body a is preferably integral with an annular air inlet m surrounding the fuel nozzle b and enclosed in an air-heating casing 5. A cone 3 guiding the air to the inlet m may be fitted with swirling vanes 4. Swirling vanes may also be arranged in the air inlets d, m. Some of the air heated in the duct v is used for the conveyance of the fuel through the body a and some forms part of the secondary air supply. Additional air may be supplied through a pipe 6 at the centre of the burner. The casting t is preferably formed in two parts jointed at 7, an opening 8 being formed in the lower part of the casting to allow access to the furnace by a trunk 9. The Provisional Specification state that the invention may be applied to the combustion of liquid or gaseous fuel. Specification 366,608 is referred to in one Provisional Specification.
Patent GB-1527648-A (GB)
Title: Cylinder lock and rotary switch assembly
IPC: E05B27/00
Filed: 1976-07-01
Abstract: 1527648 Cylinder lock and rotary switch assembly BAUER KABA AG SICHERHEITS-SCHLIESSSYSTEME 1 July 1976 [2 July 1975] 27497/76 Heading E2A A combined cylinder lock and rotary switch assembly has a number of key removal positions and comprises a stator 2, a locking bolt 10 displaceably mounted in the stator, a rotor 3 rotatably mounted in the stator 2, an operating link 9 secured to the rotor 3 and operatively engageable with the locking bolt 10 to displace the latter, a lock cylinder sleeve 5 surrounding the stator 2, the latter being non rotatable in the sleeve 5, an outer casing 6 disposed about the sleeve 5, a number of locking openings 12 in the outer casing, the position of the switch being indicated by the rotation position of a key slot 20 in the rotor 3, the outer casing 6 comprises a stationary part of the rotary switch and the number of locking openings 12 corresponding both to the number of switch positions and to the number of key removal positions, one of the locking openings 12 in the outer casing being engageable by the locking bolt 10 whenever the rotor 3 is in a key removal position, a compression spring 13 disposed between the locking bolt and the lock cylinder sleeve 5 for urging the locking bolt 10 in a direction towards the locking opening 12 in the outer casing 6, a number of tumblers 4, the arrangement and number of tumblers being selected independent of arrangement and number of the locking openings in the outer casing, a spring-loaded operating engagement member 17 mounted in the stator in a plane perpendicular to the axis of rotation of the rotor 3, and a number of engaging openings 19 in the outer casing 6 for receiving the operating engagement member 17, the number of engaging openings 19 corresponding to the number of locking openings 12, whereby when rotating the stator 2, the operating engagement member 17 engages in an engagement opening 19 of the outer casing 6 in each rotation position of the stator 2 and is secured at that position by the locking bolt 10. For Figures see next column
Patent GB-823685-A (GB)
Title: Improvements in or relating to composite sheets for forming insoles for footwear
IPC: A43B13/38
Filed: 1954-09-23
Abstract: 823,685. Insoles. LOAKES, L. A., and ABBOTT, F. D. Dec. 22, 1955 [Sept. 23, 1954], No. 27524/54. Class 17(2) An insole comprises a double layer heel and shank portion 10 and a single layer toe portion 11 of rigid material such as fibre board with an interposed flexible portion 12 of cork. sponge rubber sheet or other material joined by scarf joints 15, 17. To facilitate lasting and rounding, the flexible area is covered by a masking piece 13 extending only forwardly of the point 15 temporarily attached by adhesive applied over different areas or by frangible scrips of paper. A second masking piece may be applied to the otHer side of the portion 12. In a modification the toe portion 11 is omitted, the flexible portion and masking piece being extended to the toe. The insoles may be cut from a sheet of material built up of the necessary strips, e.g. as described in Specification 756,927.
Patent GB-921746-A (GB)
Title: An arrangement for producing periodically recurring sequences of pulses
IPC: G06F1/04
Filed: 1959-08-12
Abstract: 921,746. Semi-conductor pulse circuits. OLYMPIA WERKE A.G. Aug. 12, 1959 [Sept. 19, 1958], No. 27584/59. Class 40 (6). Groups of one or more pulses are selected from a continuous train by feeding the train into a gate controlled by the outputs of at least two transistor bi-stable circuits connected in cascade, the bistable circuits being also controlled by the continuous train of pulses. As shown, clock pulses at terminal 1 are fed to an AND gate 3 controlled by the output of a bistable circuit F 2 . A negative start pulse 14, applied to terminal 14 via OR circuits 11, 12 initially sets the left-hand transistor of the bi-stable circuits F 1 , F 2  conducting. The circuit F 1  halves the clock pulse frequency to provide waveform 6 at point 6. This waveform is again halved by F 2  to provide waveform 9 at point 9. The AND gate 3 thus only allows clock pulses to pass to terminal 13 when point 9 is negative. A third diode fed from F 1  may be added to the gate 3 so that clock pulses are only passed to terminal 13 when both points 6, 9 are negative. The connections between the bi-stable circuits F 1 , F 2  may be varied to provide different pulse sequences.
Patent GB-350344-A (GB)
Title: Improvements in, and relating to, the design and construction of lubricating appliances
IPC: F01M3/04
Filed: 1930-09-16
Abstract: 350,344. Lubricating internal-combustion engines. CORY, A. R. and BODY, F. L., 3, Haverfield Gardens, Kew, Surrey. Sept. 16, 1930, No. 27622. [Class 12 (iii).] A disc valve H mounted or a spindle G provided with a manually-controlled operating lever M controls the passage of graphite from a container D into a chamber R in a conica valve J mounted on the spindle G, the valve J being provided with ports S, T co-operating with passages L, K communicating with the induction mani fold of an internal-combustior engine and with the atmosphere respectively. The lever M is normally maintained by a spring A in such a position that the valve H allows a charge o graphite to pass into the chamber R. On turning the lever M, the valve H closes communication with the container and the ports S, T are brought into register with the passages L, K, whereby air is drawn into the induction manifold through the chamber R, carrying with it the charge of graphite. The lever M may be operated by Bowden mechanism Z. The ports and passages S, L may be duplicated or triplicated so as to feed two or more manifolds. In a modified construction, the disc valve H is dispensed with and the valve J is arranged horizontally, the latter being provided with an additional port controlling communication between the container and the chamber R.
Patent GB-869752-A (GB)
Title: Improvements in and relating to the retreading of tyres
IPC: B29D30/56
Filed: 1957-09-03
Abstract: 869,752. Retreading tyres. NOWAK, B. Sept. 3, 1957 [Sept. 4, 1956], No. 27713/57. Class 144 (2). A pre-formed tread strip for retreading tyres comprises a profiled outer tread 1 of vulcanized rubber with a bonding layer 5 of accelerator-free unvulcanized cushion rubber bonded to its roughened inner face 4 by an accelerator-free rubber solution, the exposed face of the layer 5 being covered by a removable protective layer 6 of impregnated paper or the like, and said layer 5 containing 4 to 6% by weight of sulphur. In use, rubber solution containing accelerators is coated over the prepared surface of a tyre to be retreaded, and/or on the exposed surface of the cushion layer 5 after the protective covering 6 has been removed, the tread strip then being applied to the tyre and the assembly heated to between 60‹ and 150‹ C. for about 3-4 hours to effect vulcanization of the cushion layer 5.
Patent GB-1152887-A (GB)
Title: Improvements in Electroluminescent Zinc-Cadmium Sulfide-Oxide Phosphors and Method of Producing them
IPC: C09K11/61
Filed: 1967-06-16
Abstract: 1,152,887. Electroluminescence. GENERAL ELECTRIC CO. 16 June, 1967 [25 July, 1966], No. 27810/67. Heading C4S. An electroluminescent phosphor has the formula (Zn 1-y Cd y )(S 1-z O z ) : CuX where y and z are approximately equal, y does not exceed 0À2 and X is Cl and/or Br. The phosphor is prepared by heating ZnS : Cu, Br and CdO with Cu 2 S or CuS as catalyst in a neutral atmosphere then washing in acetic acid and K cyanide. CdO diffuses into ZnS phosphor and varying the quantity of CdO alters the peak output wavelength. The phosphor is dispersed in dry chlorinated biphenyl. The ZnS phosphor is prepared by heating ZnS and CuBr with a Sb 2 O 3  flux in a neutral atmosphere.
Patent GB-257774-A (GB)
Title: Improvements in process for reclaiming used paper
IPC: D21C5/02
Filed: 1925-11-05
Abstract: 257,774. Hammond, G. Nov. 5, 1925. Pulp, preparation of.-Newspaper or other paper having a pigment applied thereto is reclaimed by reducing the paper to pulp and removing the pigment therefrom and then mixing the pulp with an alkali acid sulphite at a temperature below 110‹ F. Prior to treating with the sulphite the pulp may be treated with a caustic soda solution, also at a temperature of 110‹ F., the amount of caustic soda used being approximately 2.5 per cent by weight of the paper treated. The alkali acid sulphite is preferably added in excess of that required to neutralize the alkalinity of the pump, the resulting pulp being washed to remove the excess sulphite.
Patent GB-279070-A (GB)
Abstract: 279,070. Consortium fur Elektrochemische Industrie Ges. Oct. 18, 1926, [Convention date]. Grant of Patent opposed. Acelic anhydride.-Acetic acid vapour is treated with a small quantity of a gaseous catalyst, preferably a weak inorganic acid such as phosphoric and boric acids or volatile substances which yield acid compounds under the reaction conditions, such as phosphorus and its volatile compounds such as methyl and ethyl phosphates. In an example acetic acid vapour is passed through a carbon tube heated at 650‹ C. and a solution of phosphoric acid in acetic acid is admitted at the entrance so that 0.5 gram of phosphoric acid is supplied per kilo of acetic acid vapour, or phosphorus or phosphoric acid may be dissolved in the total quantity of acetic acid in the same proportion. The process may be combined with that of Specification 272,951, the acetic acid vapour being first heated to the reaction temperature and the catalyst being then added. The reaction chamber may be made of a material which does not seriously decompose acetic acid vapour, such as chromium steel, copper, silicon, carborundum or quartz, and the heating may be electrical. The process may be used in conjunction with a solid or liquid catalyst in the heating zone as described in Specifications 194,719 and 230,063. The Specification as open to inspection under Sect. 91 (3) (a) mentions the use of hydrochloric -acid as catalyst; also it includes an example in which acetic acid vapour is superheated to 600‹ C. in a chromium-nickel steel worm and is then passed through a carbon tube at 680‹ C. with an addition of a solution of tri-ethyl phosphate in glacial acetic acid, and states that when the process is effected in combination with those described in Specifications 194,719 and 230,063, the acetic acid vapour superheated to 600‹ C. is passed through the solid catalyst or through a carbon tube into a molten mass of equimolecular proportions of sodium and lithium phosphates in a graphite crucible at 700‹ C., a solution of phosphoric acid in acetic acid being sprayed into the carbon tube at the same time. This subj,ectmatter does not appear in the Specification as accepted.
Patent GB-279477-A (GB)
Title: Improvements in elastic belts
IPC: A61F5/03
Filed: 1927-10-20
Abstract: 279,477. Boudo, A. Oct. 22, 1926, [Convention date]. Abdominal belts.-An abdominal belt is made so as to be elastic in a horizontal direction at its rear portion b and to be elastic in a vertical direction at its front portion a. The front portion may be stiffened by whale bones, spring strips, or the like d having different lengths and engaging only at the ends in pockets or gussets e on the inner face of the belt. The stiffeners may be arranged in a fan shape. Fine and strong elastic knitted fabric may be used for the front part, and strong, thick fabric for the rear part.