baber/WOPTO huggingface dataset:
Patent GB-370552-A (GB)
Title: Improvements in and relating to brake testing apparatus for motor and other vehicles
IPC: B60T17/22
Filed: 1931-02-06
Abstract: 370,552. Testing brakes. LOGETTE, A. I. and DAINTON, E. H., 186, Walmer Road, London. Feb. 6, 1931, No. 3898. [Class 103 (i).] A device for operating vehicle brakes at known pressure to facilitate the testing and adjustment of the brakes comprises a fluidpressure jack provided with a pressure gauge, which can be adjustably mounted on the vehicle for engagement with the brake pedal or lever. The device comprises a cylinder 2 containing the ram 1 to which is attached by a ball-and-socket joint 8 a pressure plate 7 adapted to bear against the brake pedal. The cylinder 2 communicates with a pressure gauge 20 and with a reservoir or cylinder 10 in which works the operating piston 14 actuated by a screw 18 and handle 19. The device may be attached to the steering column A of a motor vehicle by a screw-clamp 26, 30 operated by a handle 32. The cylinder 2 is carried by a rod 34 that can be adjusted in a split sleeve 27 and held by a bolt 33. An orifice 10a serves as an air vent and a, safetv vent 2a permits the escape of pressure fluid when the ram has reached the limit of its stroke.
Patent GB-576913-A (GB)
Title: Derivatives of hydrolysed interpolymers of ethylene and vinyl organic esters
IPC: C08F8/34
Filed: 1944-03-03
Abstract: Hydrolysed interpolymers of ethylene and a vinyl organic ester are converted to sulphates or sulphonates by esterification with an acid halide of the formula R.SO2X, where X is halogen and R is hydroxyl or a monovalent hydrocarbon radical.  Vinyl organic esters specified are vinyl acetate, propionate, isobutyrate, pimelate, 2-ethyl hexanoate and benzoate.  Acid halides specified are chloro- and fluorosulphonic acids and p-toluene- or butanesulphonyl chloride, bromide and iodide. The reaction is preferably carried out in the presence of a hydrogen halide acceptor, e.g. dioxan, pyridine, dimethyl aniline or calcium oxide suspended in an ether, with exclusion of moisture and with vigorous agitation.  The products may be isolated as the sodium, potassium, barium, calcium or ammonium salts by evaporation of a dialyzed solution.  The p-toluenesulphonates of a hydrolysed ethylene-vinyl acetate interpolymer may be heated with aniline to convert some of the unchanged hydroxyl groups to N-phenyl-amino groups and the product used to remove anions in water purification. The products may be soluble in water, acetone, dioxane and benzene. They may be formed into films and fibres. Aqueous solutions may be used as detergents, sizes, emulsifying and tanning agents.  Films may be used as safety glass interlayers, wrappings and bottle closures.
Patent GB-1453052-A (GB)
Title: Powdered rubber
IPC: B29B15/00
Filed: 1973-01-26
Abstract: 1453052 Conversion of rubber latex to powder BP CHEMICALS INTERNATIONAL Ltd 14 Jan 1974 [26 Jan 1973] 4044/73 Heading C3P A process for converting rubber latex to powder comprises coagulating the latex, passing the coagulated latex through a high shear mixing device which comprises a stationary perforated member and a moving member cooperating therewith to cause movement of the material to be milled, through the perforations in the stationary member, separating the resulting mixture of powdered rubber, and water, and drying the powdered rubber. Preferably, the stationary perforated member is a cylinder having perforations in its walls and the cooperating moving member is a rapidly rotating rotor capable of drawing the coagulated latex into the cylinder and expelling it through the perforations. Drying is preferably effected by fluidization of the powdered rubber in hot air. Examples of rubber latices which may be treated are copolymers of butadiene and acrylonitrile, and butadiene and styrene.
Patent GB-548869-A (GB)
Title: Improvements in annular floating toothed gears
IPC: B62M9/10
Filed: 1941-03-26
Abstract: 548,869. Chain wheels; toothed gearing. NORTHERN PATENT DEVELOPMENTS, Ltd., and BARTLETT, B. G. W. March 26, 1941, No. 4071. [Class 80 (i)] An annular floating toothed gear having internal teeth and either external teeth or a friction surface, formed in parts and having the internal teeth shrouded to their pitch circle, is characterized in that the outer teeth are formed on an outer annulus and the internal teeth on an inner annulus, the contacting surfaces between the two annuli being tapered and secured together by rivets, bolts or the like. The teeth a, Fig. 2, are formed on the annulus e and the teeth c on an annulus f the latter teeth being shrouded at d. The contacting surfaces g, h are tapered and the annuli are secured together by rivets i. In a modification Fig. 3, the annulus e is stepped to form a shoulder against which the annulus f abuts. The teeth are integral with annulus f one shroud d being on the inner and the other d<SP>1</SP> on the outer annulus. In a further modification, both shrouds are formed on the inner annulus.
Patent GB-924304-A (GB)
Title: Improvements relating to the remote control of television receivers
IPC: H03J1/22
Filed: 1961-02-03
Abstract: 924,304. Photo-electric control of television tuning. E. K. COLE Ltd., E. C. W. FIELDER, and N. L. ALLEN. Jan. 29, 1962 [Feb. 3, 1961], No. 4083/61. Class 40 (3). [Also in Group XL (c)] A remote tuning control arrangement for a television receiver operates from light impulses. Momentary illumination of photo-resistor P causes its resistance to reduce; it forms with resistor R1 a potentiometer across the positive supply provided by potentiometer R5, R6, R7 so that a negative-going boltage pulse is produced and applied to capacitor C2. The grid of the valve V1, which is normally biased conductive, is thereby driven negative and the valve momentarily cut off. The resulting positivegoing pulse at the anode is applied over capacitor C4 and diode V3 to charge up capacitor C5; this retains its charge at the end of each pulse, since diode V3 becomes non-conductive, while capacitor C4 is discharged over diode V4. After a preselected number of pulses in sufficiently rapid succession, the charge on capacitor C5 reaches such a value as to render conductive valve V2, which is normally biased non-conductive by means of a positive cathode bias from resistors R5, R6, R7. Conduction in valve V2 causes energization of relay RL, whereby contacts RL close so as to energize tuning motor M. This rotates the turret tuner of the receiver to the position of the next selected station; its operation also causes temporary locking of its energization circuit over a lock-in device (not shown), and in addition a cam Z is rotated. Rotation of cam Z, a complete rotation for each tuning position of the turret, causes contacts Y to close for a period, short-circuiting resistor R5. The valve V2 then runs into grid current and so rapidly discharges capacitor C5, and the circuit is thus restored to its initial condition when contacts Y again open when the desired tuning position is reached. Capacitor C3 reduces the effect of hum on the circuit.
Patent GB-438838-A (GB)
Title: Improvements in or relating to the cylinder assembly and valve gear of water-cooled internal-combustion engines
IPC: F01L1/12
Filed: 1935-02-08
Abstract: 438,838. Cylinders. ROESCH, G. H., and TALBOT, Ltd., C., Barlby Road, Ladbroke Grove, London. Feb. 8, 1935, No. 4151. [Class 7 (ii)] Detachable liners 21 are mounted, with watertight joints, in locating walls 12, 13 of a block 10, which is integral with the cylinder head and has tubes 37 extending through the water space to accommodate the push-rods 36 of the valve gear ; in a side-valve engine, guides for the valve-stems extend through the jacket. The block may be integral with the top half of the crank-case, and enclose the cam-shaft 34. The inner wall of the cylinder head may be spherical and have inclined valves operated by push rods in sloping tubes. Cooling water may be admitted by a transverse pipe which forms the locating wall 13 on one side of the liners and has orifices opposite the exhaust passages. The water-tight joints are formed by compression of packings 23, 25 by a screwed ring 27 ; the packing 23 may be placed between a flange external to the liner and the cylinder head ; the liner may be screwed into the head and the ring 27 may then be replaced by a flange on the liner.
Patent GB-772424-A (GB)
Title: Improvements in or relating to, extrusion or injection moulding presses and other apparatus comprising a heated cylinder
IPC: H05B6/14
Filed: 1952-02-18
Abstract: 772,424. Induction heating. GILBERT, N. W. Feb. 18, 1953 [Feb. 18, 1952] No. 4186/52. Class 39(3)  The cylinder 1 of an injection moulding press or of other apparatus is of steel or other magnetizable material and is heated by three induction heating units, each unit comprising a multi-turn insulated coil 4 surrounding the cylinder and enclosed within a magnetizable shell 5. The shell of each unit has an open end which abuts against, and is closed by, the closed end of an adjacent shell or a part of the apparatus; the shell also has an open side which seats upon and is closed by the cylinder wall so that the magnetic flux path passes through the cylinder wall. The units are secured between flanges 1a and 7 and are connected electrically in series or parallel, and their heating effect is controlled by one or .more thermostats. The coils of the units may have different numbers of turns in order to vary the heating along the cylinder wall.
Patent GB-635999-A (GB)
Title: Scaffolds and scaffold construction elements
IPC: E04G7/24
Filed: 1947-02-13
Abstract: 635,999. Scaffolding clamps. O'DONNEL, J. R. Feb. 13, 1947, No. 4223. Convention date, Feb. 14, 1946. [Class 20 (ii)] A scaffolding clamp comprises a jaw 22, Figs. 6, 7 formed with recesses 24, 26 back-to-back and at right angles, and is hinged to two single recessed jaws 30, 32 having flat bases 50, the jaws being clamped around scaffold poles 101, 14 by means of hinged bolts 40. Hinged jaws 55, 65 clamped around a third scaffold pole 10 have flat bases 57, 75 and are attached to the jaw 30 (or jaw 32) by means of a threaded stud 59 which secures the jaws 30, 55 in any relative angular position, or a spider 77, Figs. 4, 5 supporting diagonals 18 may be similarly secured to the base 50 of the jaw 30 instead of the hinged jaws 55, 65. The spider 77 may also be secured to the base 75 of the jaw 65. Transverse laterals 16, Fig. 4, provided with flange plates 81 may be secured to the bases 50 of the clamps by threaded studs and a transverse lateral 16 with a clamp at each end may be constructed or pre-assembled as a unit. In a modification the jaws 30, 55 are integral and formed as a double recessed jaw 30a Fig. 8 (not shown).
Patent GB-344177-A (GB)
Title: Improvements in or relating to tables, chairs, pianos and the like furniture
IPC: A47B3/12
Filed: 1930-02-08
Abstract: 344,177. Furniture legs. SACALOFF, M., 17, Cotton Street, Ancoats, Manchester. Feb. 8, 1930, No. 4287. [Class 52 (ii).] A leg for tables, chairs, pianos, &c. is formed in two separate parts 1, 2 rigidly but detachably secured together by means of a cap 3, secured to the upper part and having an internally threaded hole which is engaged by a threaded pin 7 secured to the lower part. The cap may be of harder material than the leg and may be so formed as to give the appearance of a beading at the line of junction of the two parts of the leg. Specification 250,420 [Class 52 (ii), Furniture for sitting &c. upon], is referred to.
Patent GB-539440-A (GB)
Title: Improvements in or relating to gas producers
IPC: C10J3/26
Filed: 1940-03-07
Abstract: 539,440. Gas-producers; ashpits ; grates. C.U.R.A. PATENTS, Ltd., and HALES, J. S. March 7, 1940, Nos. 4312 and 8396. [Classes 51 (i) and 55 (i)] 'Air, which may be moistened by a water vaporizer 33, is heated in the space between a jacket 32 and the fuel container 11, and passes through openings 23 to the space below an annular ribbed fuel support 22, entering the fuel through a central opening. The gases are withdrawn to an outlet 20 through a conical member 19 which supports the fuel in the hopper 16, and leaves an annular space 21 through which the fuel is fed downwards, the larger pieces tending to pass towards the axis of the chamber while the smaller pieces remain near the periphery. The ashes are discharged by a solid slightly conical grate 28 rotated by a handle 30, fixed scraper blades 31 directing the ashes into the ashpit. A starting nozzle 34 projects into the reaction chamber, and admits air when starting up the fire. Specifications 28936/12, [Class 51 (ii)], and 199,695, [Class 55 (i)], are referred to.
Patent GB-163124-A (GB)
Title: Improvements in cigarette cases, match boxes, card cases and other small boxes
IPC: A24F15/16
Filed: 1920-02-12
Abstract: 163,124. Dunhill, A. Feb. 12, 1920. Contents, delivering and facilitating access to. -The sliding inner part b, Fig. 2, of a cigarette or like case carries a pin k engaging a rightangled slot in a lever f pivoted to the lower corner of the outer case at g. A second curved lever e is pivotally connected at its upper and lower ends. respectively to the hinged lid and the lever f. When the case is closed, the pin k rests in the arm h<2> of the slot, and on opening the lid no motion of the inner container takes place until the pin has traversed this arm and arrived at the position shown; on further movement of the lid the pin rides along the arm h' of the slot and the inner container rises, facilitating access to the contents. The bottom of the inner container may be stepped or inclined as at b<1>, Fig. 5, so that the upper edges of the contained articles come at progressively higher levels. Two independent inner containers, each equiped with a pair of levers operating as above, may be provided. One Provisional Specification describes a method of operating the sliding inner part by means of a single link pivotally connected to it and to thelid.
Patent GB-839970-A (GB)
Title: Improvements in or relating to polishing apparatus
IPC: B24B31/104
Filed: 1957-02-08
Abstract: 839,970. Stuffing-box substitutes. SAUTER, H., and HAHN, W., [trading as HAHN & KOLB]. Feb. 8, 1957 [Feb. 11, 1956], No. 4335/57. Class 122 (5). [Also in Group XXIII] In polishing apparatus of the type in which a drum containing a mass of granular material is rotated so that the granular particles are centrifuged against the side wall of the drum and thus form an annular polishing mass against the inner surface of which one or more workpieces are pressed, escape of granular particles through an annular gap between the rim of the drum and a stationary cover is impeded by air flowing through the gap from the exterior to the interior of the drum. Within a housing 1 is a drum 3 having a bottom 4 carrying a stud 5 received in a bearing 6; the drum is rotated by a driven roller 11 engaging a friction ring 10 on the drum. The drum has a wall 7 with an inwardly extending flange 8; the drum contains granular material, the quantity being so selected that when the drum is rotated substantially all of the granular particles are centrifuged against the wall 7 and into the space beneath the flange 8 so as to form an annular polishing mass 12. The support 1 carries a stationary cover 2 having an annular wall 2a which carries an annular element 13 forming with a annular element 9 carried by the flange 8 a relatively large and preferably downwardly tapering gap 14. As polishing proceeds, individual granular particles are deflected from their normally circular paths; most of these particles fall to the bottom of the drum and are centrifuged back into the polishing mass 12, this effect being enhanced by providing a domeshaped insert 20 or by imparting such a shape to the bottom 4 itself. Other particles, however, move upwardly and tend to escape from the drum interior through the gap 14; this escape is impeded by moving air through the gap from the exterior to the interior of the drum, the air also serving to cool the polishing mass 12. The air is supplied through an annular nozzle 21 of an annular conduit 22 connected by one or more radial conduits 24 with a central conduit 25 connected to a blower. Egress of granular particles through the gap 14 may be additionally impeded by baffle elements 30 carried by the stationary annular element 13. In a modification, Fig. 4, baffle elements 30a are carried by the rotating annular element 9, thus acting as fan blades as well as deflectors ; if the rotation of the drum is sufficiently rapid, the blower can be omitted.
Patent GB-853818-A (GB)
Title: Starters for internal combustion engines
Inventor: DANILEWICZ LUDOMIR
IPC: F02N5/02
Filed: 1958-02-11
Abstract: 853,818. Engine turning gear. AIRCRAFT STEEL STRUCTURES Ltd. April 29, 1959 [Feb. 11, 1958], No. 4460/58. Class 7(5). The invention relates to starters for internal-combustion engines of the kind in which the starting effort is stored in a spring 9 and released when a start is to be effected the starter comprising a pinion 18 (termed a starter pinion) arranged to be advanced to an engine engaging position by helical screw mechanism 24 and to be retracted likewise by the helical screw mechanism when a start has been effected by the engine over-running the starter. In particular the invention relates to starters of this kind in which the spring is energized by winding with a handle through a suitable gear. The invention consists in a starter of the kind referred to comprising a differential gear one element of which is connected to the starter drive input, one to the spring and the third to the starter pinion, means being provided to constrain the latter against rotation sufficiently to cause it to be advanced into its engineengaging position when a drive is first taken thereto. In operation shaft 14 is turned by a handle (not shown) and this driving the outer wheel 12 preferentially turns sun wheel 11 and with it shaft 17 because of the relatively great resistance offered by the shaft 3 and the attached planet carrier 10. Clickstop disc 31 restrains sleeve 21 against rotation and so sleeve 21 with pinion 18 is advanced by screwing along helical grooves 24 until their end is reached. In this position pinion 28 can be engaged by detent 35 to prevent it from rotating and so lock sun wheel 11. This can be done by leaving the detent down or by lowering it after the engine has been turned over by starter pinion 18. On locking wheel 11 by detent 35 the drive from shaft 14 is perforce taken through planet carrier 10 to the shaft 3 so compressing springs 9. When a start is to be effected springs 9 being compressed, it merely remains to lift the detent 35 by lever 36. To permit springs 9 to be unwound when desired without turning pinion 18 a one-way friction clutch is interposed between shaft 14, worm 13 and ratchet wheel 16. This takes the form of friction rings 37 interposed between ratchet wheel 16 and on the one side a shoulder 38 (not shown) at the end of worm 13 and on the other side a flange 39 at the adjacent end of shaft 14 which is made tubular. An extension 40 of worm 13 within shaft 14 is screwed up by nut 41 to tighten the clutch. The starter could employ torsion springs which may be helical, spiral or of the straight bar type or helical tension or compression springs could be employed made of rubber, plastic or metal. Specifications 853,817 and 853,819 are referred to.
Patent GB-192617-A (GB)
Title: Improvements in or relating to wrenches
IPC: B25B13/12
Filed: 1922-02-15
Abstract: 192,617. Ochoa, V. L., and Worth, W. C. Feb, 15, 1922. Sliding-jaw wrenches.-A wrench of the kind wherein the movement of the handle automatically operates the jaws, comprises a body A provided with a jaw B slotted to receive a handle member E and formed with a passage c for the second jaw and which is provided with a shank D<1>, adapted to slide in the passage c. and with parallel abutments d<1>. Pivoted at F in the body A is the handle member E formed with a circular head e of a diameter approximately equal to the distance between the abutments d' between which it engages, the pivot F being situated just clear of the shank D' and lying on or overlapping the circumference of the head e. The jaw B is made slightly longer than the jaw D.
Patent GB-1253454-A (GB)
Title: Die assembly
IPC: B29C48/10
Filed: 1969-01-27
Abstract: 1,253,454. Tube extrusion die. ETHYL CORP. 27 Jan., 1969 [1 Feb., 1968], No. 4488/69. Heading B5A. A die assembly for the extrusion of plastics material especially polyvinyl chloride to produce lay-flat plastic tubing or blown film, comprises a die holder 11 with a frusto-conical passage diverging in the direction of extrusion, a spider 19 mounted on the die holder and having a conical portion 22 extending into the frustoconical passage in the die holder, a die cup 33 having an annular axial frusto-conical passage which diverges in the direction of extrusion, an adjustable annular cup lip 51 mounted on the die cup and a mandrel 43 mounted on the spider and defining between itself and the cup lip 51 an annular extrusion passage. The sections are attached together so that the extruded polymer does not enter the space between sections. Fig. 2 shows a section along line 2-2 in Fig. 1. The die holder 11 comprises a flange 14 for coupling to an extruder, annular passage 17 with inlet and outlet 18 and 16 for heating fluid and a frusto-conical cavity 13. A shoulder 20 on die holder 11 engages a recess 21 in the base of spider 19 to which is attached conical portion 22, defining a passage 13 between itself and the die holder 11. A threaded bore 32 in the centre of the spider can be supplied with air through passage 31 and the spider may be heated by fluid in cylindrical passage 28. The other section 25 and inner section 26 of the spider are joined by axially extending spokes 24, said spokes being sufficiently thin and having a tapered portion at each end of sufficiently small angle that the flow of thermoplastic material is substantially unimpeded and areas of turbulence at the ends of said spokes are avoided. A raised portion 30b on outer section 25 of the spider engages recess 35 on the base of the die cup 33 which can be heated by fluid in passage 39 and a raised portion 30a on section 26 of the spider engages a recessed shoulder 44 on the mandrel. The mandrel 43 is attached to the spider by bolt 45, the bolt having a central bore 47 through which air can be supplied for blowing film. The die cup is held in position by bolts 37 passing through sleeves 38, the lengths of which are adjusted so that the sections are tightly clamped without distortion. The cup ring 51 is attached to the die cup by bolts 52 and can be moved laterally by bolts 57 to provide uniformity of the orifice 57. The die will withstand extruder pressures up to 7000 p.s.i., the bolt 46 is tightened with a torque between 2000 and 12,000 foot pounds and the ratio of diameter B to diameter A is between 1À5 and 2À0 : 1.
Patent GB-1144497-A (GB)
Title: Improvements relating to the desulphurisation of hydrocarbon feedstocks
Inventor: BOURNE KENNETH HUGH
IPC: C10G25/00
Filed: 1965-09-30
Abstract: 1,144,497. Nickel-treated oxides. BRITISH PETROLEUM CO. Ltd. 18 May, 1966 [30 Sept., 1965], No. 41538/65. Heading C1A. [Also in Division C5] An inorganic oxide such as silica, magnesia or alumina which contains a small amount of hydrogen, possibly as hydroxyl groups on the surface, is treated with an alkaline solution to replace the hydrogen atoms by alkali metal or ammonium, and then with a solution containing nickel nitrate, chloride or sulphate to replace the alkali or ammonium by nickel. The oxide is then washed to remove uncombined nickel. Alternatively the alkali and nickel treatments may be combined by using a solution of nickel formate in aqueous ammonia. The product contains from 0À1 to 5% of nickel. The material may then be hydrogenated to reduce the nickel to the metallic, catalytically active form.