baber/WOPTO huggingface dataset:
Patent GB-686351-A (GB)
Title: Improvements relating to internal combustion engines
IPC: F01B9/02
Filed: 1950-12-18
Abstract: 686,351. Two-stroke engines. ELIOT, S. Dec. 18, 1950, No. 30786/50. Class 7 (ii). Double-acting pistons 6, 7 reciprocated in cylinders A, B positioned in side-by-side, spaced, parallel relationship are connected by cranks 19<SP>1</SP>, 19 to intermeshing gear wheels 21, 18, which may be mounted in a frame 15 located between the cylinders, one of the gear wheels being connected, as by a gear wheel 28, to a power take-off member, e.g. a pulley 30. The pistons may have at each end a passage 9 which registers with a port 10 of the cylinders during the power stroke to allow an initial discharge of exhaust gas, the port being momentarily closed by a section d of the piston and then fully opened to the discharge of the gases as the piston completes the stroke. A suction is set up in venturi exhaust tubes 31 by the exhaust 'gases which is sufficient to open fuel admission valves 24. The cylinders preferably comprise an inner shell, e.g. of iron or steel, and an outer shell. e.g. of aluminium, telescoped together and having an overlapping joint a at the 'middle of the cylinders.
Patent GB-396257-A (GB)
Title: Improvements in and relating to filtering devices
IPC: B01D25/02
Filed: 1932-11-02
Abstract: 396,257. Force - feed lubricating. CLAYTON, C. E. EVERY-, 51, Chancery Lane, London.-(Bowser & Co., Inc., S. F. ; Fort Wayne, Indiana, U.S.A.) Nov. 2, 1932, No. 30919. Drawings to Specification. [Class 12 (iii).] Oil drawn by a pump from the sump of an engine lubricating system is passed to a closed chamber containing a fine filter and a coarse filter. The oil passing through the fine filter is returned direct to the sump and that passing through the coarse filter is delivered to the parts to be lubricated from which it returns to the sump. The amount of oil passing through the respective circuits depends upon the relative resistances of the filters and lubricated parts and can be regulated by valves on the discharge pipes of the filters.
Patent GB-212957-A (GB)
Title: Improvements in the mountings of wheels for road vehicles, particularly road rollers
IPC: E01C19/26
Filed: 1923-07-16
Abstract: 212,957. Wallis, A. July 16, 1923. Rollers, road.-The individual wheels or rollere of a pair are mounted on separate axles pivoted about axes lying in the direction of travel and in vertical planes not inside the inner edges of the wheels. The wheels can thus adjust themselves in accordance with the camber of the road, while the tilting of an axle does not simultaneously raise or depress the inner and outer edges of the wheel. The wheels A, A<1> are mounted on axles B, B<1> having trunnions C, C<1> journaled in brackets D, D<1> on the frame and the inner ends of the axles bear against a compression spring I and, if desired, an auxiliary spring M supported on the frame. The axles may be positively looked in position by a bolt E‹ passing through a follower plate I and between the inner ends of the axles which are clamped against an adjustable bush F screwed into a frame bracket G. In a modification, the inner ends of the axles are frictionally clamped against the front plate of a casing enclosing the axles and spring.
Patent GB-1514522-A (GB)
Title: Manufacture of heat-resistant and acid-resistant zeolites from alkali metal faujasites
IPC: B01J20/18
Filed: 1975-07-24
Abstract: 1514522 Heat and acid resistant silicate materials BASF AG 24 July 1975 [25 July 1974] 30958/75 Heading C1A A heat and acid resistant zeolite is made by (i) subjecting an alkali metal faujasite having an SiO 2 :Al 2 O 3  molar ratio of 4-7 to ion exchange to replace all but 5-7% by weight of alkali metal ions (calculated as Na 2 O 3 ) by NH 4 <SP>+</SP> ions, (ii) calcining the ion exchange material at a temperature of 700-800‹C. without prior drying, (iii) subjecting the calcined material to ion exchange with NH 4 <SP>+</SP> ions to further reduce the alkali metal ion content to less than 2À5%, (iv) calcining the ion exchange product without prior drying at a temperature of 800-900‹C and thereafter (v) optionally treating the calcined product with an aqueous solution of a strong mineral acid to remove at least part of Al from lattice and (vi) (a) drying or (b) calcining to provide Si in at least some of defect positions. The first and/or second ion exchange treatments may be carried out using aqueous solutions of NH 4 Cl, (NH 4 ) 2 SO 4 , NH 4 NO 3 , (NH 4 ) 2 CO 3 , CH 3 COONH 4  or HCOONH 4 . To manufacture zeolites with a molar ratio SiO 2 :Al 2 :O 3  of up to 8 the final acid treatment may be omitted and a buffer solution of pH 3À5-6À5 is used in the second exchange stage. When higher SiO 2 :Al 2 O 3  ratios are required the calcined zeolite in the second ion exchange is treated with 1-6 N mineral acid, e.g. HNO 3 , HCl or H 2 SO 4  for a period of 1-10 hours. Molar ratios greater than 60 may be obtained. After the acid treatment the product may be filtered, dried and calcined at 300-1100‹C
Patent GB-974430-A (GB)
Title: Improvements in or relating to rotary piston internal combustion engines
IPC: F02B53/00
Filed: 1961-08-29
Abstract: 974,430. Rotary piston internal combustion engines. CURTISS-WRIGHT CORPORATION. Aug. 29, 1961 [Sept. 16, 1960], No. 31027/61. Heading F1F. A rotary piston I.C. engine comprises at least two identical engine units arranged in side-by-side relationship with their pistons mounted for rotation on eccentrics which are angularly disposed with respect to each other on a common one-piece shaft and a semicylindrical, half-bearing located on the shaft between adjacent engine units for supporting the shaft against deflection by forces resulting from the combustion of the combustion gases. As shown, the engine comprises two units with each unit comprising an outer body 12, Fig. 1, having axially-spaced end plates 22, 24 and an intermediate peripheral wall 18 having a twoarched epitrochoidal inner profile 20, Fig. 3, co-operable with the apices 38 of a generally triangular piston 10 having arcuate sides and eccentrically supported on an eccentric 30 formed on a common one-piece shaft 26 having an axis 16 concentric with the axis of the outer body. The eccentrics 30 are displaced 180 degrees angularly and the adjacent end plates 24 are formed as a single member 60 having a bore 62, Fig. 3, of identical radius to the outer surface 64 of a half-bearing 56. The member 60 is formed with an arcuate key-way 68 which receives an arcuate tapered key 66 to permit easy assembly of the bearing and prevents axial and/or tilting movement of the bearing within the outer body. To maintain the bearing in assembled relation within the outer body a screw 70 is fitted. The bearing is arranged in the housing so that the shaft supporting surface is oppositely disposed in relation to the combustion chamber in which the spark-plug 46 is disposed so that the forces of combustion urging the piston and shaft upwardly is supported by the bearing. The two units are aligned so that intake ports 48 which merge into a common inlet 47, exhaust ports 50 and the nodes in the epitrochoidal inner profiles 20 are one-behind the other so that the combustion chambers on both units are identically located.
Patent GB-605479-A (GB)
Title: Friction wheel variable speed gear
IPC: F16H15/44
Filed: 1945-11-19
Abstract: 605,479. Friction wheel gearing. LESUEUR, J. M. Nov. 19, 1945, No. 31046. Convention date, Jan. 17, 1942. [Class 80 (ii)] A friction wheel gear comprises two frustoconical discs having tiltable frusto-conical rollers between the discs, either the peripheries of the discs or the rollers being convex, resilient means keeping the driving members in engagement and the rollers being so supported at each end that they are tilted about points in their axes lying substantially at the point of intersection of the mean radius of the generatrix. In an embodiment, an inner friction disc 1 is secured to a driven shaft 2 with a spring 3 interposed between the disc and a shoulder on the shaft. An outer friction disc 6 is rotationally secured inside a pulley 7, but is free to move axially against the action of a spring 8. The discs 1, 6 are concentric and have frustoconical friction surfaces as have the intermediate rollers 10 whose surfaces are also slightly convex. The two springs 3, 8 moving the discs into contact with the rollers are balanced by a spring 20 moving a dished plate 18 bearing against the ends of the roller spindles. These rollers are supported in bearings 11, 12 mounted in cheeks 13, 14, the latter being connected together and rotatable in the housing 15, 16 by movement of an arm 13 carrying a jockey pulley 29 spring loaded by a spring 32 attached to the casing. A second jockey pulley 23 is mounted on an arm 22 rotatable about the casing 16 and loaded with spring 34 which is attached to the arm and the casing. The spherical bearings 11, 12 of the rollers 10 are located in grooves b of cheeks 13, 14 and in radial grooves a of casings 15, 16 so that relative movement of the jockey pulleys due to increasing or decreasing tension in the driving belt 37 causes the rollers to be tilted about their transverse axes to change the transmission ratio and thus maintain constant torque. In other embodiments shown, the roller axes are radial and provision is made for manual or automatic regulation of the transmission ratio.
Patent GB-653309-A (GB)
Title: Improvements in or relating to closures for non-refillable bottles
IPC: B65D49/00
Filed: 1949-12-05
Abstract: 653,309. Non-refillable bottles. SUEUR, F. H. LE. Dec. 5, 1949, No. 31168. [Class 125(i)]  The closure is a modification of that described in Specification 651,902. The device, shown in the pouring position, has a sleeve 11 secured in the neck 10, the sleeve having secured to its inner end an annular disc 18 formed with apertures 19 and a concavity 20. A flexible tube 21 is fixed to the disc 18 at one end, and at the other end to a semi hemispherical weight 22 with axial passages 24 and a concavity 23. The outer end of the sleeve 11 has an apertured plate 12 and a baffle plate 13. When the bottle is upright. the weight 22 nests on the member 18 folding up the tube 21 to seal the apertures 19. When the bottle is inverted, as shown, the tube 21 straightens the weight being adjacent to, but not touching, the plate 12. In a modification, the tube 11 has an elliptical bore and the weight is hemi-ellipsoidal.
Patent GB-658498-A (GB)
Title: Improvements in or relating to toy guns and like shooting weapons
IPC: F41B7/00
Filed: 1949-12-05
Abstract: 658,498. Toy guns. HJELM, E. S. J. Dec. 5, 1949, No. 31196. Convention date, Dec. 6, 1948. [Class 132 (iii)] A toy gun of the type having a magazine for a plurality of projectiles which can be loaded and discharged successively by a trigger mechanism operating a main spring has a pivoted lever 7 with a part 8 which is moved backwards by a trigger 10 to load a projectile 9 against a main spring 5. The part 8 simultaneously covers the mouth of the magazine preventing the entry into the barrel of any of the other projectiles 19 in the magazine. A modification, Fig. 3 (not shown) has a trigger 31 guided obliquely backwards and downwards, a projection 32 performing the function of the part 8 in Fig. 1. Fig. 2 (not shown) illustrates an embodiment in which a trigger, discharging means, and trigger spring constitute one piece.
Patent GB-391874-A (GB)
Title: Improvements in boxes or containers for shaving cream and the like
IPC: A45D40/00
Filed: 1931-11-11
Abstract: 391,874. Piston apparatus for discharging receptacles. FLOWER, W., 19, Derby Street, Barnsley, Yorkshire. Nov. 11, 1931, No. 31215. [Class 102 (ii).] In a container for pasty substances, of the type in which a plunger 3 screws into a container 1, an extrusion orifice 4 being provided in the container or in the plunger, the base 9 of the plunger screws into an outer casing 6. In the form shown the top of the casing is approximately level with the end 7 of the plunger and a cap 14 is provided. The plunger is hollow and is closed by a plug 12 carrying a lipstick. In a modification the casing 6 is of greater length than the plunger and container. The plunger, which has an intermediate portion of reduced diameter, screws into one end of the casing and a plug carrying a lipstick screws into the other end.
Patent GB-241758-A (GB)
Title: Improvements in regulator valves
IPC: F16K1/44
Filed: 1924-12-31
Abstract: 241,758. Beyer, Peacock, & Co., Ltd., and Whitelegg, R. H. Dec. 31, 1924. Closure members, double beat.-A double beat regulator valve for steam or other fluid, comprising two valves rigidly and detachably joined together, has a valve seating E<1> for the inner valve B<1> and an opening A<2> for admittance of the inner valve B<1>, this opening A<2> being provided with a detachable flanged bush E forming the seating E<2> for the outer valve B. The two valves are detachably secured together by the means of a conical shouldered bolt D passing through the valve stems which are aligned by a projection B<4> on one stem fitting a recess in the other. The controlling rod is attached to the head of the bolt. The valve chamber is provided with a flange whereby the device may be secured in position.
Patent GB-1393845-A (GB)
Title: Process for the production of 1,12-dodecanedioic acid
IPC: C07C55/21
Filed: 1973-07-02
Abstract: 1393845 Production of 1,12-dodecanedioic acid E I DU PONT DE NEMOURS & CO 2 July 1973 [3 July 1972] 31419/73 Heading C2C 1,12-Dodecanedioic acid is obtained by reductively coupling the adduct of cyclohexanone and hydrogen peroxide with a reducing agent at 20‹ to 100‹ C. and separating the desired acid from the oxidized reducing agent and by-products of the coupling reaction; the reductive coupling reaction being effected with an aqueous solution maintained at pH 1 to 6 and containing ferrous iron combined with a chelating agent, the latter containing at least one carboxylic acid group and at least one basic nitrogen-containing group selected from aminoid and heteroaromatic nitrogen, the carboxylic acid and basic nitrogencontaining groups being separated by at least one but no more than two carbon atoms. The oxidized coupling agent may be regenerated by catalytic hydrogenation (e.g. 0-35À2 Kg./cm.<SP>2</SP> gauge pressure H 2  at 25-100‹ C. over a catalyst comprising one or more of Pd, Pt, Rh and Ru) and recycled to the coupling reaction. The cyclohexanone -H 2 O 2  adduct, viz. the peroxyhemiketal of cyclohexanone, is obtained by reaction of H 2 O 2  with cyclohexanone, a cyclohexanone-cyclohexanol mixture or a cyclohexanone-cyclohexanol-cyclohexane mixture or by air oxidation of cyclohexanol. Exemplified chelating agents are nitrolotriacetic acid, α-benzyl and α-isobutyl-nitrilotriacetic acids, iminodiacetic acid, nitrilotripropionic acid, nitrilopropionic-diacetic acid, ethylenediaminetetraacetic acid, N-(2-picolyl)- iminodiacetic acid and picolinic acid. Example (2-9)a describes the preparation and isolation of cyclohexanone -H 2 O 2  adduct and caproic acid is the major by-product of the reductive coupling reaction.
Patent GB-472574-A (GB)
Title: Improvements in or relating to combined sticker and drag apparatus for feeding material to be rolled into a rolling mill
IPC: B21B39/16
Filed: 1936-11-17
Abstract: 472,574. Rolling sheets. STEVENS, A. H. (United Engineering & Foundry Co.) Nov. 17, 1936, No. 31471. [Classes 83 (ii) and 83 (iv)] Straightening.-A sheet gripping clamp plate 255 advances to thrust the free end of a metal sheet into a mill after which the clamp 255 is released but tension is maintained on the sheet as it passes between staggered rollers 209 also mounted in the same feed carriage. To begin the operation a hydraulic piston 224 is moved away from the mill, thereby rocking a shaft 235 whereby linkage 236 and levers 242, 243 lifts the upper frame 213, and the top rollers 216 thereon, and also moves both frames 213 and 205 away from the mill, so that sheet can be fed in between the separated rollers 216, 209. When the plunger 224 is reversed and moved towards the mill the frame 213 and its rollers 216 move down to meet the sheet and flex it against the rollers 209, and also moves down the clamp plate 255, also thereon, to grip the sheet against the apron 211. Further movement feeds the sheet in to the mill as above, the clamp 255 being raised when a trigger 269 comes against a stop 268 whereby the connecting rod 263 breaks the toggles 271 of the clamp 255, while the rollers 209, 216 maintain the tension on the sheet. To allow repair of the apparatus the link connections are removed when it can be moved back from the mill by racks 272 and handle rotated pinions.
Patent GB-365197-A (GB)
Title: Improvements in or relating to trip spears used in well drilling
IPC: E21B31/20
Filed: 1930-10-21
Abstract: 365,197. Well-casing spears. WHITE, A. E., 5, Quality Court, Chancery Lane, London.-(Acme Fishing Tool Co. ; Parkersburg, West Virginia, U.S.A.) Oct. 21, 1930, No. 31551. [Class 85.] A fishing spear for pulling casing from a well com. prises a body 3 with a wedge portion supporting wedge slips 7 and threaded to a head 1 with a bell portion 6 intc which reduced upper parts 11 of the slips extend. Members 8 separ. ate the slips which have teeth 9, 10 in two direc. tions whereby the slips are prevented from rotating in the well casing after engaging the latter. Reduced lower r extensions 12 on the slips enter a cupped retainer 14 supported on ball bearings 19 on a flange 17 of a trip sleeve 18 held to the retainer by a threaded ring 16. The trip sleeve 18 is connected to the body 3 by a pin 20 and L-slot 22. Around the trip sleeve is a spring assembly comprising rings 23, 24, connected by strip springs 26 adapted to engage the inner wall of the well casing, the rings 23, 24 being adjustable to and from each other by screws 25 to vary the effect of the spring. A cone 27 guides the tool into the casing and a flushing passage 28 passes through the tool. In use, the springs 26 are adjusted to support the tool which is inserted in the casing with the parts in the position shown in Fig. 1. On reaching the required location, the body is turned and lifted to move the pin 20 up the slot 22, the wedge part of the body then spreading the slips into engagement with the casing.
Patent GB-774015-A (GB)
Title: Improvements in or relating to frequency changing mixing circuits
IPC: H04B15/06
Filed: 1954-11-02
Abstract: 774,015. Frequency-changing circuits.  TELEFUNKEN GES. Nov. 2, 1954 [Nov. 2, 1953], No. 31589/54. Class 40(6) In a self-oscillating frequency-changer in which the output is back-coupled to the input by a oscillatory circuit 2 and coupling inductance 3 and the signal input circuit 4 is connected between earth and a tap on the input inductance 3, the end of which remote from the valve is earthed via a condenser 6 balancing the input capacity of the valve, the effect upon the input circuit of the anode-grid capacity is also balanced out. For this purpose the circuit 2 is provided with a capacity tap comprising condenser 7 and the anodeearth capacity of the valve if necessary, augmented by a further condenser 8. The tap is located in the same proportion as the tap on the input inductance 3, and the anode-grid capacity balanced by a condenser 9. The inductance of the circuit 2 is also tapped in the same proportion, the inductance 10 of the first I.F. circuit being connected to this point; it is tuned by the condensers 7, 8.
Patent GB-325780-A (GB)
Title: Improvements in or relating to fluid-handling apparatus such as gas-meters
IPC: G01F15/00
Filed: 1929-03-19
Abstract: 325,780. Roots Co., P. H. & F. M., (Assignees of Owens, R. H.). June 25, 1928, [Convention date]. Divided on 314,328. Drawings to Specification. Movable-abutment type.-A gas meter or other fluid handling apparatus comprises a casing having inlet and outlet openings, intermeshing fluid displacement members in said casing, parallel shafts fixed to the fluid displacement members and extending through the end walls of the casing, a compartment enclosing timing gears in the ends of the shafts and a collecting and retaining chamber for lubricant and impurities adjacent the timing gear compartment. An embodiment of the invention is described in the abridgment of Specification 314,328.
Patent GB-1447428-A (GB)
Title: Substituted phenyl n-alkyl carbamates and thiocarbamates and their use as pesticides
IPC: C07D239/38
Filed: 1974-07-17
Abstract: 1447428 Substituted phenyl N - alkyl carbanates and thiocarbonates PFIZER Ltd 15 July 1975 [17 July 1974] 31612/74 Addition to 1369709 Heading C2C The invention comprises compounds having the general Formula I wherein R<SP>1</SP> represents a C 1  to C 6  alkyl group; R<SP>2</SP> represents a hydrogen atom, a C 1  to C 6  alkyl or an acyl group (as hereinafter defined): Z represents a heterocyclic group of the formula R<SP>3</SP> and R<SP>4</SP> each represent a halogen atom or a C 1  to C 6  alkyl, alkoxy or alkyl thio, trifluoromethyl, nitro, cyano or aryl group, each R<SP>4</SP> being attached to a carbon atom of Z; R<SP>5</SP> is a hydrogen tom, or a C 1  to C 6  alkyl, anyl or C 1  to C 6  alkyl substituted-aryl group; m and n are each 0 to 4; p is 0 to 3; and when either m, n or p is more than 1, the groups R<SP>3</SP> and R<SP>4</SP>, respectively may represent the same or different atoms or groups; and X represents an oxygen or sulphur atom. The term "aryl group" means a group -COR<SP>6</SP>, wherein R<SP>6</SP> represents hydrogen or a C 1  to C 6  alkyl, C 1  to C 6  alkoxy-C 1  to C 6  alkyl, C 1  to C 6  alkylthio-C 1  to C 6  alkyl, halo- C 1  to C 6  alkyl, phenyl C 1  to C 6  alkyl, phenoxy C 1  to C 6  alkyl, phenyl thio C 1  to C 6  alkyl or phenyl group, any benzene ring therein being optionally substituted with one or more of those groups specified in the definitions of R<SP>3</SP> and R<SP>4</SP>. The compounds of Formula I in which (i) R<SP>2</SP> is a hydrogen atom or an acyl group may be prepared by reacting a compound of formula II with a C 1  to C 6  alkyl isocyanate R<SP>1</SP>NCO or isothiocyanate R<SP>1</SP>NCS and when R<SP>2</SP> is an aryl group acylating the R<SP>2</SP>=H product (ii) R<SP>2</SP> is a C 1  to C 6  alkyl group may be prepared by reacting an alkali metal derivative of the compound of Formula II with a carbamoyl or thiocarbamoylchloride of the formula R<SP>1</SP>R<SP>2</SP>NCXCl. The compounds of Formula I are used as pesticides.
Patent GB-1102842-A (GB)
Title: Improvements in vehicle axle and wheel assemblies
IPC: B60B37/08
Filed: 1966-07-14
Abstract: 1,102,842. Axles. S. F. JOHNSON. 14 July, 1966 [15 July, 1965], No. 31632/66. Heading B7L. A railway vehicle axle assembly comprises a first axle having a first journal 5, a first wheel 1 and a first bearing 12 forming a first structure; a second axle 7 surrounding the axle 3 and having a second journal 6, a second wheel 2 and a second bearing 11 forming a second structure, the bearings 11, 12 being of the same size and inboard and closely adjacent the wheels 1, 2. The journal 6 is carried by a short axle 4 press-fitted in the wheel 2 and one end of the axle 7 is bolted at 8 to the wheel 2. The wheel 1 is pressed on the axle 3. The outer race 17 of the bearing 12 is pressed into a recess in the bolted-end of the axle 7, whilst the inner race 18 is pressed on an enlarged section 19 of the axle 3. The outer race 16 of the bearing 11 is pressed into a recess in the other end of the axle 7, whilst the inner race 14 is pressed on an enlarged section 15 of the axle 3. A sealing ring 10 is provided between the end of the axle 7 and an extension 25 of the wheel 1. The two structures of the axle are held together by a nut 23 on the threaded end 22 of the axle 3, which nut engages a washer 21 engaging the race 18 of the bearing 12. Rotation of the washer 21 is prevented by a pin 19. The means for securing the two structures together may be modified, as described with reference to Figs. 2 and 3 (not shown). In the axle shown in Fig. 1, inwardly acting side thrusts are absorbed by the bearing 11 and an annular shoulder in the recess in the end of the axle 7 adjacent the wheel 1. Outwardly acting side thrusts are sustained by the bolts 8, nut 23, washer 21 and bearing 12.