baber/WOPTO huggingface dataset:
Patent GB-1108543-A (GB)
Title: Latently curable resin compositions and novolak compounds for use as curing agents in these compositions
IPC: C08L63/00
Filed: 1965-03-09
Abstract: Polyphenolic novolaks of a bisphenol containing the general structural unit: <FORM:1108543/C3/1> in which Z represents <FORM:1108543/C3/2> n is an average number from 1 to 13, R represents a hydrogen atom or an allyl or monomethylallyl group selected so that, of the two groups represented by R and connected to a given cyclic nucleus, in substantially all of the cases one represents a hydrogen atom and the other represents an allyl or monomethylallyl group are prepared (a) in the case of allylic ether group containing novolaks, by reacting a bisphenol with formaldehyde to form a novolak followed by reaction with the appropriate allylic chloride in the presence of a strong base of (b) in the case of the C-allyl substituted polyphenols, by rearrangement of the above-mentioned allyl ethers by heating at 180 DEG  to 220 DEG  LC. or by reacting a C-allyl substituted bisphenol with formaldehyde.  Examples describe the preparation of novolaks based on (1 and 2) bisphenol A, followed by reaction with allyl chloride, (3) 4,41-dihydroxydiphenyl sulphone followed by reaction with allyl chloride, (4) a bisphenol A bisether of a polyethylene glycol ether of M.W. about 300 followed by reaction with allyl chloride, and (5) 2,21-diallyl bisphenol A.  The allyl ethers of Examples 1 to 4 may be rearranged to C-allyl substituted novolaks by heating.  The polyphenolic novolaks of bisphenols of the invention may be used as curing agents for epoxy resins and are combined therewith in substantially stoichiometric reactive proportions. The novolak may be used in its O-allyl or C-allyl form. In the case of the O-allyl form, reactive phenolic groups are formed by rearrangement to the C-allyl form by heating, such that the two reactions of rearrangement and cross-linking occur almost simultaneously. A post-cure may take place by thermal polymerization through allyl groups.  Preferred polyepoxides are the glycidyl ethers of bisphenol A and the glycidyl ethers of unsubstituted novolak polyphenols.
Patent GB-1004628-A (GB)
Title: A hydraulic axial piston type pump or motor piston return mechanism
IPC: F02M41/08
Filed: 1963-03-14
Abstract: 1,004,628. Reciprocating pumps and motors. T. BUDZICH and A. PITT. March 14, 1963 [Sept. 6, 1962], No. 10105/63. Heading F1A. [Also in Division F2] In a rotary barrel swash plate pump or motor the piston shoes 42 have circumferential grooves 54 which engage with arcuate openings 64 in a plate 60. The openings 64 are connected to the central bore 68 of the plate 60 through slots 66 which are of smaller width than the diameter of the openings. The pistons 32 are normally spring returned, but in the event of individual pistons sticking, they are returned by the plate 60. In extreme cases of sticking all the piston shoes 42 are lifted clear of the wear plate 44 and the shoe faces are kept parallel to the plate 42 since the plate 60 is guided in the recess accommodating the wear plate 44 in the swash plate 46.
Patent GB-477976-A (GB)
Title: Improvements in thermionic valve oscillation generators
IPC: H03B7/04
Filed: 1936-04-06
Abstract: 477,976. Valve generating circuits. BRITISH THOMSON-HOUSTON CO., Ltd. April 6, 1936, No. 10151. Void. Convention date, April 6, 1935. [Classes 39 (i) and 40 (v)] A pair of valves R1, R2, each having its grid at a positive voltage equal to or higher than the anode voltage, have their grids and anodes reciprocally connected to a single oscillatory circuit LC. The anodes are fed through, a centretapped choke coil D. The circuit is stated to give constant amplitude over the tuning range.
Patent GB-369419-A (GB)
Title: Improvements relating to fanlights, roof-lights and the like
IPC: E05F17/00
Filed: 1931-04-07
Abstract: 369,419. Door operating gear. NEWMAN & SONS, Ltd., W. and NEWMAN, H. G., 268, Hospital Street, Birmingham. April 7, 1931, No. 10171. [Class 65 (i).] Relates to hinged fanlights, rooflights, and the like, of the kind actuated by links or levers connected to the oppositelymoving sides of an endless chain, or to oppositelymoving rods or bands connected at their ends by chains. According to the invention, the driving sprocket wheel 4, Figs. 1 and 2, around which the chain 2 passes, is swivelly mounted so that it may be adjusted to bring the rods 1, 1<1>, operated by the chain, into a plane parallel, or substantially parallel, to the plane of the closed fanlight 7. 'The other ends of the rods 1, 1<1> are connected to a chain 2<1> passing around a sprocket wheel 3 which is carried by a swivelling bracket 5. Each fanlight is actuated by a pair of pivoted links 9, 9<1> which are connected respectively to a pair of triangular plates 8, 8<1>. These plates are pivoted at 10 to the window frame 11 and are connected to the rods 1, 1<1>, respectively, at the points 12. By rotating the sprocket wheel 4, the rods and hence the plates 8, 8<1> and links 9, 91, move in opposite directions to open or close the fanlight. The sprocket wheel 4 is mounted on a shaft 20 which is driven through gearing by an electric motor 6. The shaft 16 of the motor is coupled to a worm shaft 15, Fig. 3, the worm 15a on which meshes with a worm wheel 17 on a horizontal shaft 18. This shaft is journalled in a casing 23 and carries a worm 18a which meshes with a worm wheel 19 mounted on the shaft 20 of the sprocket wheel 4. The casing 23 is provided with trunnions 26, 27, which engage respectively in bearings 25, 24. The bearing 24 is split at one side and is drilled and tapped to receive a bolt 30 which is adapted to clamp the casing 23 in the required angular position of adjustment.
Patent GB-252518-A (GB)
Title: Improvements in fordson or similar agricultural tractors to make them more suitable for working in confined spaces
IPC: B60B35/10
Filed: 1925-04-21
Abstract: 252,518. Weeks, W. R., Ashdown, J. W., and Wickens, T. April 21, 1925. Axle structures.- The wheel base of a Fordson or similar tractor is shortened and the width of track decreased by the use of a front axle e shaped as shown and with radius rods f either integral therewith or attached thereto.
Patent GB-502771-A (GB)
Title: Process for producing hydrocarbons by the catalytic conversion of carbon monoxide with hydrogen
IPC: C07C1/04
Filed: 1938-04-05
Abstract: 502,771. High-pressure apparatus. RUHRCHEMIE AKT.-GES. April 5, 1938, No. 10468. Convention date, April 17, 1937. [Class 1 (i)] [Also in Group IV] The catalytic conversion of carbon monoxide and hydrogen into mainly liquid or solid hydrocarbons in apparatus comprising cooling tubes and heat-conducting metal sheets disposed thereon, is effected at an elevated pressure corresponding approximately to the vapour pressure of the cooling agent flowing through the tubes. The walls of the tubes need not be resistant to pressure and cost is therefore reduced. The gases are passed under a pressure of 11 atmos. through a furnace comprising rows of cooling tubes on which sheets of heatconducting metal, traversed by the tubes, are disposed perpendicularly at intervals of about 10 min., a cobalt-thoria catalyst filling the interspaces. Water at 186‹ C. and 11 atmos. flows through the cooling tubes so that the reaction temperature does not exceed 187‹ C.
Patent GB-187917-A (GB)
Title: Improvements in or relating to baby carriages or the like
IPC: B62B9/18
Filed: 1922-04-12
Abstract: 187,917. Rones, S. April 12, 1922. Frame construction; springs, arrangement of.- Relates to baby carriages and like vehicles in which the body is suspended from a frame comprising a single longitudinal member secured to the axles and having upturned ends which carry transverse members connected to the body by coiled springs or flexible links. According to the invention, two transverse members 6, 10, Fig. 3, are provided at each end of the frame member 1, the member 6 being connected to the body at points above the centre of gravity thereof, the member 10 being connected to the body at lower points. The axles 3 are connected towards their ends by tie members 4, and side sway of the body is minimized by straps 15, Fig. 4, connecting the frame member 1 to brackets 16 at each side of the bottom of the body. The ends of the lower transverse members 10 may be bent around the body as shown at 17, Fig. 5, the springs or links 11 being connected to lugs 18 on the parts 17 and to a transverse rod 19 on the body. The ends of the parts 17 may be turned downwardly and flattened to form lugs for connection to the springs &c. 11.
Patent GB-789679-A (GB)
Title: A process for the upgrading of cracked naphtha
IPC: C10G35/085
Filed: 1955-04-12
Abstract: A gasoline having a F-1 clear octane rating above 80 is produced by fractionally distilling a hydrogenated cracked naphtha having a boiling range within 125-450 DEG  F. to separate an overhead fraction having a 90 per cent point below 350 DEG  F. and a higher boiling bottoms fraction having a 90 per cent point above 400 DEG  F., and separately contacting the two fractions with hydrogen in the presence of a hydrogenation catalyst so as to produce a normally liquid product having less than 0.2 per cent by weight of sulphur and less than 22 parts per million of nitrogen. Cobalt-molybdenum is the preferred catalyst, but tungsten sulphide, tungsten nickel sulphide, molybdenum oxide or molybdenum sulphide may be used in the hydrogenation step.  As a modification, the cracked naphtha is first hydrogenated under the hydrogenating conditions and is then distilled to form said fractions having said 90 per cent points and the hydrogenated cracked naphtha fractions are separately contacted with a platinum catalyst under sufficiently severe dehydrating conditions to produce a liquid product having an F.I. clear octane rating above 80, the conditions being substantially less severe in the case of the bottoms fraction.  The platinum is preferably supported on alumina or silica-alumina.
Patent GB-1151675-A (GB)
Title: Improvements in and relating to Control Arrangements for Driving Units of Motor Vehicles
IPC: B60K20/00
Filed: 1968-03-05
Abstract: 1,151,675. Change-speed control. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. 5 March, 1968 [7 March, 1967], No. 10596/68. Addition to 1,091,701. Heading F2D. The gear shift mechanism described in the parent Specification is modified by replacing the time relay (27) in the secondary acceleratorcontrolled circuit by a switch contact 24 operated by a relay 23 controlled by the contact 19 actuated by the accelerator pedal 15, to assist rapid upshifts. A capacitor 29 may be fitted to avoid sparking.
Patent GB-579245-A (GB)
Title: Improvements relating to power transmission mechanisms
IPC: G05G19/00
Filed: 1943-06-30
Abstract: 579,245. Mechanical relay mechanism. LUCAS, Ltd., J., WATSON, E. A., and SHAW, F. T. June 30, 1943, No. 10624. [Class 80 (ii)] [Also in Group XXX] Power transmission mechanism adapted to be actuated alternatively by hand or by power comprises a manually operable input shaft a screw-threaded at m to an output shaft g carrying a friction clutch plate q. Slight axial movement of the shaft g is allowed. A pair of gears o, p are driven in opposite directions from' a motor d. When the latter is not operating, rotation of the shaft a by handwheel c causes the friction plate q to engage either one of the gears o, p, after which further rotation of the wheel c drives the shaft g directly. The motor d will be driven idly by the handwheel c, but freewheel mechanism may be included in the drive from the motor d to the gears o, p to prevent this. When the motor d is operative, the device acts as a mechanical relay, the driven shaft g being power driven in correspondence with the movement of the handwheel c in either direction. The invention is applicable for use in winches, cranes or gun-laying mechanisms.
Patent GB-213445-A (GB)
Title: Improvements in or relating to pistons for internal combustion engines
IPC: F02B75/00
Filed: 1923-04-19
Abstract: 213,445. Swann, Hunter, & W. Richardson, Ltd., and Belyavin, P. April 19, 1923. Pistons; cooling; attaching to rod; piston - rods. - In the piston of an internalcombustion engine expanding rings are employed for conducting heat both from a central heat - resisting mass and from a sleeve surrounding the pistonrod. The heat-resisting mass B fits, with the clearance to allow for expansion, into the annular water-cooled end a of the piston. Expanding rings U serve for packing and to conduct the heat. Expanding rings C<1> are similarly interposed between the piston-rod D and a sleeve E surrounding it and similar rings e are interposed between the sleeve E and the water-cooled end a<5> of the piston. A flange on the end of the piston-rod D is secured between two water-cooled bodies a<6>, which close the water spaces in the parts a, a<5>, and are secured to those parts bv bolts securing also the end B and the sleeve E. Water supplied by a pipe c in the piston-rod passes to the water spaces in the parts a<6>, which are connected by a pipe, and to the parts a, a<5>. The central part of the piston is closed by a sleeve a<7> in parts bolted together. A single-acting piston is similarly constructed.
Patent GB-436299-A (GB)
Title: Improvements in and relating to tubular headers for steam superheaters or like apparatus
IPC: F22G3/00
Filed: 1934-04-09
Abstract: 436,299. Jointing tubes to headers. SUPERHEATER CO., Ltd., and SOUTHCOTT, L. C., Bush House, Aldwych, London. April 9, 1934, No. 10712. [Class 99 (i)] In a header for a steam superheater &c. to which tubular elements are jointed by clamping means which include studs 2 mounted on the wall 1 thereof, said header wall is provided at each stud location with a metal thimble 5 which serves to strengthen the wall and is formed with a blind and tapped hole to receive the stud 2. The thimble 5, Fig. 4, which is welded at 6 to the wall 1, is preferably in screwthreaded engagement with a cylindrical or tapered hole in the said wall and its closed or blind end 8 is adapted to project from either the inner or outer side thereof, and as shown in Fig. 5 it may be formed with an enlargement 9 between which and the header wall is located a washer 10. In a modification, Fig. 6, a projecting ferrule 5 is welded within a blind hole in the header wall and is internally screwthreaded to receive the stud 2 ; alternatively a metal block 5, Fig. 7, is welded on the outside of the wall and a blind hole then drilled through the block and into the wall for the said stud.
Patent GB-573307-A (GB)
Title: Improvements in or relating to fuel tanks for aircraft
IPC: B64D37/06
Filed: 1940-09-20
Abstract: 573,307. Tanks. WILKINSON, B., and LE GOOD, K. M. Sept, 20,1940, No. 10725/41. Divided out of 573,838. [Class 69 (i)] A fuel tank comprises a flexible bag surrounded by and readily removable from a flexible self-sealing cover having an internal coating of a fuel-impervious material embodying at least one layer of a swellable rubber composition such as that known under the Registered Trade Mark " Linatex " and made by the process described in Specification 437,928, [Group V]. The inner bag may be coated or impregnated with a fuel-proof material or may be made of fuel-resistant synthetic rubber. The outer cover may consist of a number of layers overlapping at the corners and cemented together and may be covered externally with doped fabric, treated leather, or treated asbestos sheeting. In the form shown, the tank has a filler hole 1, inspection hole 2 through which the inner bag can be passed, and a sump 3 to which the outlet pipe 18 and drain pipe 4 are connected. The means for attachirig the cover-plates 11 and sump 3 to the inner bag 5 and outer cover 8 comprise annular rings 9, 15, distance-pieces 10 and bolts 12, the ring 15 being flanged to bite into the layers 14, 7.
Patent GB-527332-A (GB)
Title: Improvements in the production of reversed photographic images
IPC: G03C7/30
Filed: 1939-04-06
Abstract: 527,332. Photographic reversal processes. KODAK, Ltd. April 6, 1939, No. 10778. Convention date, April 6; 1938. [Class 98 (ii)] A black-and-white reversed image is produced by developing a reversed silver salt image with a coupling developer containing a developing agent and the colour former pbenzylphenol, which couples with the oxidation products of the developing agent, formed where a silver image is produced by development, to give a neutral grey image. The negative silver image is removed by Farmer's Reducer after the second development, but the positive silver image is not removed owing to the protective action of the dye image. Two developing formulae are given, one containing diethyl-p-phenylenediamine as developing agent and the other 2-amino-5-diethylaminotoluene hydrochloride. Sodium hydroxide is used in both formulae. Other developing agents referred to are p-phenylenediamine and dimethyl-p-phenylenediamine. The latent image is produced either in taking or in printing, and a metol-hydroquinone first developer is used. The second exposure is effected either from the emulsion side or through the support and may be controlled to permit of a constant developing time. Specification 176,357, [Class 98 (ii)], is referred to.
Patent GB-108066-A (GB)
IPC: F02M9/06
Abstract: 108,066. Veulle, F. H. de. Sept. 23, 1916. Spray carburettors.-A manually actuated sliding piston throttle valve is moved across the air passage and carries an adjustable stop which actuates a fuel needle valve through a bell - crank lever. The adr passage B is controlled by the piston valve A which is actuated by a Bowden wire G, and is provided with a bracket H carrying an adjustable stop I which actuates the fuel valve E through a bell-crank lever the arm J of which presents a cam surface to the stop. The valve is urged towards its closed position by a spring N which bears against a cap 0 soldered to the top of the casing. The fuel orifice may be adjusted independently by a screw M.
Patent GB-608594-A (GB)
Title: Improvements in or relating to refractory cements and processes for their preparation
IPC: C04B28/26
Filed: 1945-04-30
Abstract: A refractory cement suitable as an adhesive coating for protecting metallic surfaces, as a binder for granular refractory powders and as a mortar for assembling refractory bodies has as constituents alkali metal oxide or oxides, silica and alumina the proportions of which vary from 1:1:1-1:5:1.  In an example, equal molecular proportions of kaolin and potassium silicate are mixed to give a composition of K2O, Al2O3-3SiO2.  A less acid cement is obtained by the addition of more hydrated alumina and a more acid one by hydrated silica.  The alkali metal silicates may be added as an aqueous solution to a pulverulent silicate of alumina to form the cement as a paste ready for use.
Patent GB-610918-A (GB)
Title: Improvements in floor polishing apparatus
IPC: A47L11/18
Filed: 1946-04-09
Abstract: 610,918. Floor-polishing machines. NEWMAN, H. April 9, 1946, No. 10911. [Class 138 (i)] A floor-polishing apparatus comprises a suction nozzle at the front of the casing, a rotary pad for applying polishing material, arranged adjacent to and behind the nozzle, a rotary brush for polishing, a fan for the suction nozzle, and an electric motor for driving the three-pad, brush and fan. A rotary pad 6, driven by a motor 34, is rotatably mounted on a spindle 14 in levers 15 pivotally mounted on a bracket 17. Polishing material is fed from a tank 9 to a cut-off valve 10, which supplies the pad 6. The cut-off valve comprises two concentric perforated tubes, the inner tube being rotated by a lever 13 and a link 21 connected to the lever 15 so as to bring the perforations into or out of co-incidence to supply the material to the pad or to cut-off the supply thereto. The lever 15 is connected to a U-shaped frame 24 by a link 23. A cam 50 rotated by a knob 51 is used to lock the frame 24 in a rearward position so as to raise the pad 6 and shut-off the supply of polishing material, when the apparatus is not in use. The supply may be renewed by rotating the knob 51 and pushing the frame 24 forwards by means of a handle 28. A fan 30, driven by the motor 34, is connected to a vacuum nozzle 20, the air passing through a dust bag 31 to nozzles 36 to dry the floor in advance of the polishing brush 7, which is driven by the motor 34 and mounted on a spindle 37 in slots 41 in brackets 26.
Patent GB-627118-A (GB)
Title: Improvements in, or relating to, appliances or tools for extracting posts and like articles from the ground
IPC: E04H17/26
Filed: 1947-04-24
Abstract: 627,118. Load-handling machines. AINGE, A. D. April 24, 1947, No. 10925. [Class 78 (iii)] A tool for extracting posts from the ground comprises a flat foot plate 1 having on its upper face a pair of pierced ears 2 between which the lower end of a lever 3 is journalled on a pin 4. A length of chain 6 is provided at one end with a ring 7 through which the opposite end of the chain is threaded after being passed round the post 9 to be lifted. A convenient link is then engaged with a hook 5 on the lever which has been placed at an angle as shown. The post is then lifted a short distance on pulling the lever vertical. The foot plate has upturned edges 8 to prevent it from sticking in the ground so that it can easily be positioned by the foot of the operator. The lever 3 may be provided with a plurality of hooks 5 or may have a pawl and ratchet controlled drum for tensioning the chain. Fig. 7 shows in plan view how four operators may arrange four of the tools for lifting a large post.
Patent GB-1346616-A (GB)
Title: Vehicle suspension
IPC: F16F9/46
Filed: 1971-04-23
Abstract: 1346616 Vehicle suspension dampers SOC ANON AUTOMOBILES CITROEN 23 April 1971 [24 April 1970] 10981/71 Heading B7D [Also in Division F2] A restriction 7 in a passage 6 in an hydraulic piston-cylinder damper (Fig. 2, not shown but see Division F2) of a vehicle suspension is adjusted automatically in response to the turning speed or angle of the vehicle wheels, through the intermediary of pivoted levers, hydraulic transmission or Bowden cable 22. If the steering wheel 9 is turned quickly to turn the vehicle wheel 8, the movement of a piston 13 in a fluidfilled bore 14 of a device 15 attached to the vehicle frame forces fluid through one of passageways 17, 18 into a further fluid-filled bore 16 of the device 15. The piston 19 is therefore moved by the fluid against the bias of a spring 20a or 20b and moves the Bowden cable to rotate a lever 21 and increase the resistance to flow through the passage 6 offered by the restriction 7. If the bend continues, the steering and road wheels remain in the same position, and the piston 19 returns to its initial position under the action of the spring 20a or 20b, the fluid passing through a calibrated aperture 19a in the piston, and the resistance offered by the restriction 7 returns to normal. When the steering wheel is returned to the straight-line position, there is again a transfer of fluid from the bore 14 to the bore 16, causing a temporary increase in the damping of the suspension, which is all the greater, the faster the movement of the steering wheel. To obtain instead an adjustment of damping which depends on the angle of turning of the wheels 8, the aperture 19a is omitted.
Patent GB-322715-A (GB)
Title: Improvements in or relating to water flushing apparatus
IPC: E03D5/08
Filed: 1929-04-09
Abstract: 322,715. Medrano, A. M., and Chiossone, G. April 9, 1929. Foot-action water-waste preventers.-A button 14 mounted in a box embedded in the floor is adapted to be depressed by the foot and to operate a lever 17 connected to a cable 20, which leads to flushing apparatus directly or through multiplying gearing.