baber/WOPTO huggingface dataset:
Patent GB-560981-A (GB)
Title: Improvements in and relating to the steering of vehicles having endless tracks
IPC: B62D11/08
Filed: 1939-09-16
Abstract: 560,981. Change-speed gearing. WILSON, W. G. Sept. 16, 1939, No. 26007. [Class 80 (ii)] [Also in Group XXXI] In power driving and steering mechanism for endless-track vehicles each track is driven through a combined epicyclic driving and steering gear with small ratio differences, both sets of such gears being driven by a main change-speed gear common to both, so that both tracks can be driven through the usual speed changes of the main gear, and the steering gears can be separately controlled to drive the tracks at equal speeds or to drive one track at a speed differing only slightly from that of the other. The difference in speed of the two tracks can be modified by allowing slip in the drive to one track. In the construction shown the engine unit a drives the tracks p through bevel gearing d, a transverse shaft e, two independent compound epicyclic two-speed gears g, spur gearing m and track sprockets o. Each end of the driving shaft e carries the sun pinion t of a first epicyclic train r and the toothed annulus 12 of a second epicyclic train s. The planet carrier v of the planet pinions u, of the first train may be held by a brake z and carries the sun pinion y of the second train, this pinion being loose on the driven shaft h to which is fixed the planet carrier 11 of the planet pinions of this second train. When the annulus w of the first train is held by a brake x, the brake z being free, the shaft e drives the shaft h through the two epicyclic trains compounded. When the brake x is released and the brake z applied the shaft h is driven through the second train only, the ratio of this train being sufficiently close to that of the compound train for steering purposes. In order to render the steering action more smooth and gradual the brake band z may be loosened to allow slip, the drum v and the band being of increased width for this purpose. For sharp turns either track can be retarded or held stationary by independent brakes k<1>. The gear and steering brakes may be controlled either by hand or hydraulic or pneumatic servo-motor. In the latter case the engine a drives an air compressor 23 to supply a receiver 24, the three brakes x, z, k<1> on each side being controlled through valves 25 operated by levers 26. Normally, when both brakes x are applied the vehicle is driven in a straight path ; to steer the vehicle gradually one brake x is released and the corresponding brake z applied, while to make a sharp turn the brake z on that side is or may be released and the corresponding brake k<1> applied. In a modified construction of epicyclic gear the driving shaft e carries the sun pinion of the first train and the planet carrier of the second train, and the annulus of the second train is fixed to the driven shaft h, the planet carrier of the first train being fixed to the sun pinion and the brake of the first train as in the construction shown in Fig. 2.
Patent GB-298361-A (GB)
Title: Improvements in sand blast machines
IPC: B24C7/00
Filed: 1927-10-03
Abstract: 298,361. Jackman & Co., Ltd., J. W., and Neville, F. W. Oct. 3, 1927. Sand-blast. - In a sand-blast apparatus of the type in which a single hand lever A controls the air supply valve B, the filling valve F and the abrasive regulating valve H, the opening of the valve H may be regulated so as to obtain the maximum efficiency with the particular air pressure and nozzle employed. 'The lever A is mounted directly on the spindle of the air supply valve B and is connected by links C, C' to the extension d of a cam D mounted on a fixed pivot d<1>. The cam d acts through a screw e, lever E and rod to operate the filling valve F. A two-part rod G which operates the abrasive valve H is adjustably connected to a slot g in the cam, the point of attachment to the slot being determined by the desired opening of the valve H. The delivery outlet H<1> of the abrasive regulating valve is formed separately from the valve and may be attached thereto in the desired angular position to avoid unnecessary bends in the pipe line from the outlet H<1>. In operation the first movement of the handle A preferably closes the filling valve F before the air supply valve B is opened. Further movement then opens the air valve and also gives the desired opening of the abrasive supply valve. On reverse movement of the handle the air-supply is cut off, the air pressure in the chamber F<1> being sufficient to clear the pipe line of abrasive. In a modification, Fig. 5, the rod G has a fixed connection to the cam D, the movement of the cam being limited to determine the opening of the valve H by means of a screw K. The air valve B is arranged to be fully open for all the limiting positions of the cam D.
Patent GB-192127-A (GB)
Title: Improvements in forging hammers or stamps
IPC: B21J7/24
Filed: 1921-10-01
Abstract: 192,127. Soc. Anon. pour l'Exploitation des Brevets Lelong, and Castin, C. Oct. 1, 1921. Power hammers.-The cylinder 1 of a fluid operated hammer 2 is adjusted vertically by a hand-screw 7 and nut 6 in an open ended cylinder 3 forming part of the framework 4. The cylinder 3 may be held in its adjusted position by setscrews 11 and a key 9.
Patent GB-810650-A (GB)
Title: Improvements in or relating to fuel injection systems for internal combustion engines
IPC: F02D9/00
Filed: 1957-08-19
Abstract: 810,650. Spray carburetters. GENERAL MOTORS CORPORATION. Aug. 19, 1957 [Sept. 10, 1956(2)], No. 26085/57. Class 7(3) In a carburetter 46 comprising a fuel pump 54, Fig. 3, delivering to a metering mechanism 60 from which the fuel is distributed through pipes 82 to nozzles 84, Fig. 1, in the intake pipes, a device 104 cuts off the supply of fuel to the nozzles when the throttle valve is shut during overrunning. The pump 54 is situated in a float chamber 44 and the cut-off device 104 comprises a normally closed by-pass valve in the pump delivery pipe 56 which is opened at overrunning by the intake manifold vacuum acting upon diaphragm 108. The suction connection 116 from the diaphragm chamber 112 is connected to passages 118, 120, Fig. 1, leading respectively to the upstream and downstream side of the throttle valve 42. During overrunning with the throttle valve partly open the flow of air through passage 118 reduces the suction in passage 120 acting on diaphragm 108 and prevents opening of the valve 104. On closing of the throttle valve, a pad 124 thereon closes passage 118 and the high intake manifold suction during overrunning opens valve 104 to by pass the pump delivery back to the float chamber 44. During normal operation the fuel from pump 54 flows through a check valve 74 to a distributing space 76 in which the pressure and hence the supply to the nozzles 84 is controlled in accordance with air flow by a spill valve 80 controlled by a diaphragm 90 responsive to the suction in the air intake pipe 34. The carburetter 46 is located in the space between the cylinder banks 32 of a V-engine and is contained within a housing 22 through which air flows to the carburetter air inlet pipe 34, cooling the float chamber 44.
Patent GB-318748-A (GB)
Title: Improvements in or relating to furnaces
IPC: F23L7/00
Filed: 1928-09-12
Abstract: 318,748. Knowles, H. S., and Burkinshaw, W. Sept. 12, 1928. Air, supplying; air supply, heating.-A. furnace, more particularly adapted for beating billets, is divided into compartments 13, 14, 15 by ported walls 18, adjacent which are bridges 19 extending upwards to a point above the level of the ports 20, the bridges and walls forming spaces 21 to which air for secondary combustion is supplied, preferably by superheated steam or air jets 26 delivering into conduits 22 passing through a side wall and the floor of the furnace. Air for primary combustion is similarly supplied to the fireplace 6 through a flue 11, and for secondary combustion through passages 17. When the waste gases are to be used for generating steam a bridge and air supply may be provided in connection with the end wall ports 27.
Patent GB-461201-A (GB)
Title: Laminated glass and like products
IPC: C09J131/04
Filed: 1935-09-20
Abstract: An adhesive for uniting a layer of highly polymerized vinyl acetate or an acrylic acid ester to glass consists of a solvent of high boiling point (at least 100 DEG  C.) and one or more polymers of vinyl acetate or an acrylic acid ester of low or medium viscosity, for example polyvinyl acetate and ethylene glycol monomethyl ether, or polyvinyl acetate, polyethyl acrylate, and the acetate of ethylene glycol mono-methyl ether.  The Specification as open to inspection under Sect. 91 describes also adhesives containing interpolymers of vinyl acetate and an acrylic acid ester, and one consisting of polyvinyl acetate and the acetate of ethylene glycol mono-methyl ether.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1475325-A (GB)
Title: Method and apparatus for dispersing suspensions
IPC: C09D7/00
Filed: 1974-06-12
Abstract: 1475325 Agitator mills DAI NIPPON TORYO CO Ltd 12 June 1974 [13 June 1973] 26164/74 Heading B2A An agitator mill has one agitator rod at right angles to the shaft. The rod is spaced from the bottom of the mill vessel by a distance 5-20% of the inner diameter of the vessel. The rod length is 65-95% of the said inner diameter and its maximum dimension parallel to the shaft axis is 2-5% of the rod length. The rod section may be circular oval, aerofoil or triangular. The grinding media may be metal, e.g. steel, metal compound e.g. alumina, ceramics, glass flint, silica sand, zircon of 1-5 mm average size with S.G. of 2-8 and a mixture of large (3-5 mm) to small (1-2.5 mm) media in ratios 1/9 to 5/5 may be used. The mill is jacketted e.g. by a pipe wound spirally around it and has a sieve in the base. The whole base may be a sieve. Recirculation and discharge are by a pump 14. The vessel may have a lid 16 Fig. 2 with a gas inlet 17, and a media discharge opening 5 may be provided in the base. A stirrer vane 10 on the shaft prevents packing. The shaft 8 may be lifted by an hydraulic mechanism. During dispersion and recirculation, or after dispersion, the suspension can be passed through an ultrasonic mill operating at 20 KHz to 200 KHz or through an agitator type of homogenizer operating at 1000-10000 rpm or through a colloid mill operating at 250- 2500 rpm.
Patent GB-1024645-A (GB)
Title: Chromone compounds
Inventor: FITTON ALAN OGDEN
IPC: C07D493/04
Filed: 1962-07-10
Abstract: The invention comprises 6-oxa-cyclohexano-[g] - chromone - 2 - carboxylic acid, salts and esters thereof and a process for the preparation thereof by condensing 7-acetyl-6-hydroxy-chroman with ethyl oxalate and cyclising the resultant diketone by heating with ethanolic HCl, H2SO4 or boron trifluoride to obtain the ethyl ester, or with glacial acetic acid and HCl to obtain the free acid.  The 7-acetyl-6-hydroxy-chroman may be obtained by contacting b -(p-methoxyphenoxy) propionic acid with a strong acid catalyst to yield 6-methoxy-chromanone, reducing the chromanone to 6-methoxy chroman and contacting this with boron trifluoride acetic acid complex, or by acetylating b -(p-hydroxy-phenoxy) propionic acid with acetic anhydride, contacting the resulting (p-acetoxyphenoxy) propionic acid with a strong acid catalyst to yield 6-hydroxy chroman, acetylating to form 6-acetoxy chroman which is contacted with aluminium chloride.  Pharmaceutical compositions having activity as inhibitors of the antigen-antibody reaction and containing the above compounds are administered orally in tablets, in solutions for injection or topically as creams, lotions and pastes or in an aerosol.
Patent GB-861431-A (GB)
Title: Improvements in or relating to the production of benzimidazole derivatives
Filed: 1959-07-31
Abstract: Compounds of the general formula I <FORM:0861431/IV (b)/1> in which R and R1 are the same or different and are hydrogen or substituent groups and either or both of the benzene rings may carry substituents, are prepared by heating a compound of general formula II <FORM:0861431/IV (b)/2> or a mixture of a diamine of formula III <FORM:0861431/IV (b)/3> and malic acid or a functional derivative thereof, with orthophosphoric acid, pyrophosphoric acid or a polyphosphoric acid.  R and R1 may be, for example, alkyl, hydroxyalkyl or alkenyl groups having 1-3 carbon atoms, or an aralkyl group.  The benzene groups may carry as additional substituents, for example, halogen, methyl or methoxy groups.  In the preparation of compounds of the formula given above in which R and R1 are other than hydrogen it is advantageous to introduce these substituents initially into the compounds of formula IV <FORM:0861431/IV (b)/4> by treatment with an alkyl, hydroxyalkyl, alkenyl or aralkyl halide or a dialkyl sulphate.  Thus, for example, alkyl, allyl, hydroxyethyl, dihydroxypropyl or benzyl radicals may be introduced.  The reaction of a diamine of formula <FORM:0861431/IV (b)/5> with malic acid or a functional derivative thereof to produce initially a compound of formula (II) <FORM:0861431/IV (b)/6> is preferably effected at 130-200 DEG  C. in the presence of an inert solvent and an inert gaseous diluent.  Alternatively, compounds of formula II <FORM:0861431/IV (b)/7> may be obtained by reacting a nitroamine instead of a diamine with malic acid or a functional derivative thereof and subsequently reducing the nitro groups with ring closure. In treating the compounds of formula II <FORM:0861431/IV (b)/8> with phosphoric acid it is advantageous to use an excess of phosphoric acid and to carry out the reaction at 130-200 DEG  C. Specification 814,249 is referred to.
Patent GB-449148-A (GB)
Title: Improvements in or relating to aircraft
IPC: B64C29/00
Filed: 1934-09-14
Abstract: 449,148. Aeronautics. GRANDJEAN, A., 51, Avenue Alphand, Saint Maude, Seine, France. Sept. 14, 1934, No. 26450. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 15, 1935]. [Class 4] With the object of attaining a vertical take-off an aircraft is provided with an integral duct 2 preferably of Venturi tube section, in which are disposed a number of inclined planes 8 on to which an artificial current of air is caused to impinge by means of a fan 9 driven by a steam or gas turbine 11 The planes 8 are preferably hinged at their forward edge so that their inclination and lifting effect can be varied either individually or collectively. At the desired altitude, by adjustment of the planes 8 and by throwing in a clutch 12 to connect a propelling-screw 13 with the turbine 11, the machine may be placed in horizontal flight. A rudder 14 and tail-planes 15 are disposed at the rear end of the duct 2, while two auxiliary folding planes 24, 25 may be supported at the sides of the machine. A stream-lined cabin 16 containing a boiler 20 for feeding the turbine is arranged below the duct 2 The machine is also equipped with a parachute 23 and with hinged landing- shoes 26, 27 fitted with pneumatic shockabsorbers. Instead of being situated centrally of the duct 2 as shown, the propeller 13 may be positioned at the forward or rear end of the duct.
Patent GB-703166-A (GB)
Title: Improvements relating to automatic shearing machines for strip material
Inventor: RICHARDSON JAMES ALFRED
IPC: B23D25/04
Filed: 1950-11-01
Abstract: 703,166. Shearing. NUFFIELD TOOLS & GAUGES, Ltd. Oct. 31, 1951 [Nov. 1, 1950], No. 26641/50. Class 83 (4) In an automatic shearing machine for cutting equal lengths from a moving strip comprising a shearing die between two sets of feed rollers and rigidly mounted on a sliding carrier to be reciprocated along the path of the feed, driving means to drive the die forwards in company with and at the speed of the work and mechanism responsive to the forward movement of the die carrier to operate the die there is provided a restraining means compelling the die carrier after operation of the die to dwell at the end of its approach to the set of feed rollers at the exit side of the die until the fresh leading edge of the work has been gripped by those rollers. In an embodiment stock is fed by means of driven rollers 4, 5, 7 and 8 through a die 6. The die 6 is rigidly mounted on a carrier 9 having a sleeve 46, Fig. 5, slidable on a rod 48 fixed between two posts 50, 51 and a sleeve 47 which is fixed to a rod 49 slidable in the posts 50, 51. A push rod 41 is connected to the rod 49 at one end and to a lever 37, Fig. 1, pivoted in an adjustable block 39 at the other. A flywheel 16 whose axis 5 at right-angles to the strip feed direction is driven through adjustable vee belt gearing from the shaft which drives the feed rollers and mounts a striker 28 on a block 29 adjustable across the face of the wheel 16. A counter-weight 34 is provided on the wheel 16. A facing 28A, at 45 degrees to the horizontal in the position shown in Fig. 1, on the striker 28 is set to engage a 45 degree face on the lever 37 and is rotated at the linear speed of the moving stock 1. The striker 28 engages the lever 37 and through the rod 41 pushes the carrier 9 from right to left. In this movement of the carrier a projection 55 on an arm 57 pivoted in the carrier 9 rides over a projection 56 on a stationary block 61 pivoted in a member 63 adjustably pivoted to rods 65, and causes a member 59 to close the die 6. Once over the projection 56 springs open the die 6. A spring latch 70 rises to lock behind a rod 72 on the carrier 9 and hold it at the end of its stroke against a compression spring 73. When the wheel 16 has turned through 180 degrees a cam 69 thereon engages a roller 74 on an arm 75 to rotate the arm and cause the latch 70 to be released and the carriage to be returned by the spring 73. On returning the projector 55 engages the projector 56 and rotates the block 61 against a weak spring 68.,
Patent GB-1511683-A (GB)
Title: Polyethylene compositions
IPC: C08L29/00
Filed: 1975-06-24
Abstract: 1511683 Polyethylene compositions ROHM & HAAS CO 24 June 1975 [1 July 1974] 26645/75 Headings C3K and C3M Compositions comprise (1) polyethylene of MW above 600,000 and (2) 1-25% by weight of (1) of an acrylic polymer derived from a monomer system comprising at least 50% methyl methacrylate as processing aid. The acrylic polymer may be a polymer of one or more acrylic and/or methacrylic esters, and may be of the core-shell or graft form. Examples describe compositions of ultra high molecular weight grade high density polyethylene with ethyl acrylate/methyl methaerylate copolymer.
Patent GB-763952-A (GB)
Title: Improvements in or relating to methods of manufacturing electron discharge devices
Inventor: FREEMAN GEORGE STANLEY PERCIVA
IPC: H01J29/48
Filed: 1953-09-29
Abstract: 763,952. Cathode-ray tubes. CINEMATELEVISION, Ltd. Sept. 29, 1954 [Sept. 29, 1953], No. 26725/53. Class 39(1). Two coaxial electrodes are assembled in a desired axial spatial relation by inserting a force-fitting member within one of them which is of tubular form, adjusting this member while continuously measuring the spacing until the desired spacing is attained, permanently securing the member to the electrode, and then inserting the second electrode, whose position is located by the member. The drawing shows the method applied to the cathode and modulator assembly for a cathoderay tube. A collar 6 with a flange 7 is a light force fit within the modulator electrode 1. A mandrel is inserted in collar 6, which is pushed into the modulator by turning a micrometer screw. The distance between the mandrel and the inner face of the modulator is indicated on a dial gauge, actuated by a probe passing coaxially through the mandrel. When this distance reaches the desired cathode-modulator spacing plus the height of the cathode 2, the movement is stopped. The cathode assembly consists of a cup 2 mounted on a tube 3 secured in an insulating disc 4. This assembly is now placed in position with the disc 4 lightly pressed against flange 7, while a check measurement of the inter-electrode spacing is made. Collar 6 is then welded in place, and the cathode assembly secured in position by a flanged retainer 8, itself secured by clips 9 welded to collar 6. The cathode-modulator spacing may be measured by any suitable means not directly engaging the cathode, such as a travelling microscope, a capacitance method, or by the resistance offered to the passage of a current of air. As an alternative method of obtaining the mandrelmodulator spacing, the mandrel may have a central projection of the same size as the cathode, and the change in resistance of a current of air used as a measure of the spacing. Specification 763,951 is referred to.
Patent GB-1208781-A (GB)
Title: Manufacture of foamed polyamides
IPC: C08J9/06
Filed: 1967-06-09
Abstract: 1,208,781. Foamed polyamides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 13 May, 1968 [9 June, 1967], No. 26792/67. Headings C3C and C3R. Rigid polyamide foams are made by maintaining at a temperature above the melting point of the polyamide a mixture comprising the polyamide, a blowing agent and a crosslinking agent for the polyamide, whereby foaming occurs and then cooling below the melting point to solidify the polyamide. The polyamide may be polycaprolactam or polyhexamethylene adipamide. The blowing agent may be carbonate, . bicarbonate, oxamate, azide, hydrazide, azodicarbonamide or semicarbazide, or a depolymerized polymer, e.g. polymethyl-methacrylate. The mixture may also contain a polymerization catalyst, e.g. cyclohexylphosphonic acid. The cross-linking agent may be a bishexamethylenetriamine or hydroxyhexamethylenediamine adipic acid complex.
Patent GB-282350-A (GB)
Title: Electric means for re-energising the driving springs of clockwork mechanisms
IPC: G04C1/02
Filed: 1927-10-10
Abstract: 282,350. Schild & Co. Dec. 15, 1926, [Convention date]. Electric clocks.-An electric clock in which a spring f is re-energized by an electromagnet l and in which the arm carrying the driving pawl c oacts with the armature h to form the switch of the magnet, is characterized in that the circuit of the magnet passes through the armature and its spring mounting blade n direct to the shell g<1> of the magnet, and thence through the winding l and lead r to the terminal q and the battery. The magnet shell is insulated from the body of the clockwork which is connected to the other pole of the battery. Connection between the shell and the winding of the magnet is established by clamping the end of the winding between the shell and a disc k.