baber/WOPTO huggingface dataset:
Patent GB-783077-A (GB)
Title: Improvements in or relating to drying machines
Inventor: BUTLER CHARLES DESMOND NORCOTT
IPC: F26B11/04
Filed: 1954-06-25
Abstract: 783,077. Drying tobacco &c. IMPERIAL TOBACCO CO. (OF GREAT BRITAIN & IRELAND), Ltd. Sept. 21, 1955 [June 25, 1954], No. 18637/54. Class 34(2) A machine for drying tobacco &c. comprising a rotating vaned cylinder 9, heated by gas burners 36, and through which the material is fed while being tumbled by the vanes has a heated rotor 10 supported within the cylinder and upon which the material falls after sliding off the vanes. The rotor 10 is hollow and is fed with steam through a pipe 31 or is heated electrically or by hot air or gas fumes taken from the head 26 covering the cylinder. Material is fed to the cylinder by a conveyer 46 and discharged on to a conveyer 48 where it cools. The cylinder may be steam jacketed instead of being heated by gas jets and the vanes may be hollow to have steam passed therethrough. Alternatively the cylinder and vanes may be electrically heated. Specification 783,078 is referred to.
Patent GB-678117-A (GB)
Title: Improvements in or relating to metal halide complexes of aureomycin
IPC: C07C233/00
Filed: 1950-07-26
Abstract: A metal halide complex of aureomycin is prepared by treating a solution of aureomycin or a salt thereof with a solution of a chloride or bromide of aluminium, cobalt, magnesium or iron. Specified salts of aureomycin are the hydrochloride, the sodium salt and the ethylene diamine salt.  The complexes may be retained in the reaction solution, freeze dried from such solutions, isolated from methanol or by isoelectric precipitation from water or alcohol at pH 6.0.  The antibiotic may also comprise a mixture of the complex with excess free aureomycin or a salt thereof; and the salts formed during the reaction, if any, may be present e.g. sodium chloride, sodium bromide, and triethylamine hydrochloride. Solvents used in the preparation of the complex are alcohol, acetone, water and mixtures of alcohol and water.
Patent GB-187515-A (GB)
Abstract: 187,515. Lundberg, A. E. Dec. 17,1921. Cooking - stoves ; dampers.-A kitchen range comprises a grate 2 with an oven 3 beneath. Baffle plates 9 which act as dampers, or are provided with dampers 10 at their lower ends, extend the whole depth of the fire-place and in the position shown direct the gases under the hot-plate 7. When the dampers 10 are in the dotted line e position the gases pass through openings 8 in the side walls of the grate, and thence beneath the plates 9 to the flues around the oven. The top of the fire-place 4 is closed and provided with openings 5, 6 beneath corresponding openings in the hot-plate 7. When only one of the latter is in use, the opening beneath the other may be closed bv a cover 12 suspended by a rod 13 which passes through a slot in the hot-plate cover 14. The rod 13 is provided with recesses 16 so that when raised it may be rotated and locked to retain the cover 12 in the raised position. The gases pass by an opening 30 to a chamber beneath the oven and are directed by a partition 22 and damper 28 either to the outlet 23 or to the outlet 24 leading to a chamber 25 containing a water-heater 27. The opening 30 is of tapering form to secure an equal distribution of gases in the flues. A sliding damper 19 allows the openings of the inner part of the grate to be closed when the opening 6 is closed.
Patent GB-384928-A (GB)
Title: Improved method and apparatus for the painting of rods, and the like articles
IPC: B05B13/02
Filed: 1932-07-04
Abstract: <PICT:0384928/III/1> In a process for coating or impregnating bars or rods &c. the bars are mounted close together in a rotatable frame, and sprayed on each side with varnish, creosote, &c.  A frame 2 is provided with fixed pins 3 and spring-loaded pins 4 between which the bars are mounted, and is pivotally supported in a yoke 6.  The apparatus may be suspended by a hanger 8 running in rails 9, whereby the coated rods are conveyed to a drying chamber.
Patent GB-872464-A (GB)
Title: Apparatus for measuring the thickness of a coating on a base material
IPC: G01N23/223
Filed: 1958-06-12
Abstract: 872,464. X-ray gauges. UNITED STATES STEEL CORPORATION. June 12, 1958 [Aug. 14, 1957], No. 18861/58. Class 40(3) The thickness of a coating on a specimen is measured in terms of the fluorescence radiation from the specimen when irradiated with X-rays, the latter passing through a diaphragm having an opening so shaped that the product of the area of irradiated coating viewed by the measuring means and the average intensity of the X-rays over this area does not vary if the specimen moves towards or away from the source of X-rays. Rays from the tube 2 (Fig. 1) pass through a diaphragm 10 on to the specimen 5 (e.g. tincoated steel strip) and the resulting fluorescent radiation is detected by a Geiger or scintillation counter 12. The diaphragm aperture (Fig. 2) has one side 40 V-shaped, and the opposite side straight (as shown) or V-shaped also. Fluorescent radiation from the sides of the diaphragm passes through an adjustable aperture 32 (Fig. 1) to a similar counter 26. The output of each counter is fed to a separate amplifier, pulse height discriminator, from binary scalers in series, a decade scaler and a rate meter, and finally the ratio between the two rates is determined in the unit 60, this giving a measure of the thickness of the tin coating on the strip 5. Errors due to variation of the power input to the X-ray tube are thus eliminated by using the comparison counter 26. In an alternative arrangement (Fig. 3, not shown) each unit 12, 26 feeds a counter, the two being connected so that they both stop when one has reached a certain count. Adjustment for variation of output of the X-ray tube is carried out by a micrometer 22 (Figs. 1 and 2) which attenuates by a known amount the radiation reaching the detector 12.
Patent GB-700642-A (GB)
Title: Improvements relating to motor road vehicle driving and steering wheels
IPC: B60K17/30
Filed: 1951-08-13
Abstract: 700,642. Motor vehicle driving and steering gear. AUSTIN MOTOR CO., Ltd., RIX, J. R., and KING, H. Aug. 5, 1952 [Aug. 13, 1951], No. 18977 / 51. Classes 79(2) and 79(5) In a steering pivot assembly for a front wheel drive of a motor vehicle, the pivot assembly being of the kind in which vehicle weight is carried on a taper roller bearing at the bottom of the pivot and the steering kick is damped by a taper bearing at the top of the pivot, the bearing receiving a taper pin, the taper pin is loaded by separate spring means which maintains it in engagement with its bearing and automatically takes up wear between these parts so as to retain effective damping of the steering kick. As shown a swivel axle 10 enclosed in a casing 13 is connected by a universal joint 12 to a shaft 11 enclosed in a casing 14, the casings being interconnected by upper and lower swivel pins. The weight of the vehicle is taken by the taper roller bearing 18 between the lower swivel pin and the casing 14. The upper swivel pin 21 has a taper 20 engaging a bronze taper bearing 19 carried by the casing 14. The pin 21 is urged downwardly by a spring steel plate 22 which is held in position by studs 16 and nuts 17 securing a plate 15x on a steering arm 15 to the casing 13. In a modification the taper pin is loaded axially by a heavy helical spring with only a few coils, the spring being mounted at the top of the steering pivot assembly and accommodated in a housing associated with the steering arm.
Patent GB-187305-A (GB)
Title: Improvements in indirect lighting unit
IPC: F21V5/00
Filed: 1921-07-14
Abstract: 187,305. Stephens, A. J., (Dorey, W. A.). July 14, 1921. Reflectors; shades.-A device for semi-indirect lighting consists of an interior upwardly facing reflector 3 having double reflecting prisms 5 on the outer face, and superimposed on a separate shade 6 of approximately equal diameter, the reflector 3 being adapted to reflect part of the light rays from the light source 2 upwardly, and the shade 6 having on its surface a zone 8 of horizontal prisms to receive and direct light rays transmitted through the reflector and a zone of diffusing surface. The horizontal light directing prisms are arranged so as to reduce the shadows at the edge of the cone of light passing upwards from the light source, and the zone of diffusing surface is arranged so that the relative proportion of direct light below an angle of 60‹ with the nadir is greater than the quantity of light above this angle but below the horizontal. In one form the shade 6, Fig. 1, has on its lower portion a fluted interior surface 9 and a decorative outer surface 10. and the prisms 8 on its upper portion have faces 14 substantially vertical so that the light is refracted upwards, and faces 15 substantially parallel with the light rays falling on this surface. The reflector 3 is provided with a flange 16 which rests upon the flange 17 of the shade 6 so that the two flanges can be held together by a metal band or other suitable means. In another form the reflector 3, Fig. 2, is attached to the shade 6 by a screw and nut 19, and the opening between the upper ends of the two members is filled by a metal diaphragm 18, the lower surface of which is finished with a white diffusing coat. The lower inner surface 19 and outer surface 9 of the shade 6 are etched and the upper faces 15 of the prisms on its upper part 8 are reduced in slope as the lower edge of this surface 8 is approached. In other forms the shade 6 mav have colours or corrugations on its outer surface.
Patent GB-829375-A (GB)
Title: Improvements in or relating to coke oven door closure apparatus
IPC: C10B25/16
Filed: 1957-06-17
Abstract: 829,375. Coke oven doors. KOPPERS CO. Inc. June 17, 1957 [July 6, 1956], No. 19006/57. Class 55 (1). In a coke oven door 13, Fig. 4, of the selfsealing type, in which a metallic section 25 supports a flexible seal 26 contacting a sealing surface 28 on the door frame 12, a pair of latch bars 34 which span the door 13 and engage latch hooks 35 fixed to the door frame 12 or the buckstays 11, are connected to the door 13 by means of double-arm centre lock toggles 21. Each toggle 21 comprises a pair of arms 37, 39, Fig. 3, pivoted at 46, 46<SP>1</SP>, to the door and latch bar 34 respectively and pivoted centrally to each other. The door-operating machine comprises a rack 50 which is vertically reciprocable by means of a hand or power-operated pinion 51. After the machine has been moved up to the door, so that the roller 52 contacts the bearing 29, the rack 50 is raised. This causes hooks 53 on the dooroperating machine to engage lugs 30 on the door, and fixed strikers 54 on the machine to contact hooks 43 on the arms 37. The toggles are moved beyond dead-centre and the portions 44 of hooks 43 finally strike the latch bars 34 to move them out of engagement with the latch hooks 35. On further upward movement of the rack 50 the door 13 is raised by means of the hooks 53 fully engaging the lugs 30. On replacing the door 13 and moving the rack 50 downwardly, movable strikers 56 on the dooroperating machine contact heads 42 on the arms 37 to move the toggles 21 into the locked position, further downward movement of the rack 50 to free the hooks 53 from the lugs 30, causing the strikers 56 to pivot against the action of springs 59. Specification 681,073 is referred to.
Patent GB-128680-A (GB)
Title: Improvements relating to the Valve Actuation of Internal-combustion Engines.
Inventor: HAGENS HUBERT
IPC: F02F1/42
Filed: 1917-12-22
Abstract: 128,680. Hagens, H. Dec. 22, 1917. Valve-gear.-Two valves 3, either admission or exhaust, are opened simultaneously by one cam through an adjustable T-shaped tappet 6. Screwed plugs 10 in the tappet are secured by slitting them and expanding them by a taper plug 13, which is secured by a transverse pin 18<1>. The clearance between the tappet and the cam is adjusted by a screwed bush 15 containing a spring 16 which presses a pin 17 traversing the stem 11 against the top of a slot in the bush 15. The bush is secured by a lock-nut 18 and by the pin 17 which slides in vertical slots in the boss 12; the pin also prevents the tappet from turning on a vertical axis. Certain minor modifications in construction are described. Specification 116,656 is referred to.
Patent GB-275783-A (GB)
Title: Improvements in and relating to windows for road vehicles
IPC: B60J1/14
Filed: 1926-07-31
Abstract: 275,783. Biggs, F. July 31, 1926. Vehicle windows; vehicle-window opening and closing apparatus.- A pivoted flap through which the hand may be extended for signalling is provided in a sliding vehicle window and is actuated by means of links 1 - 3, at each side and a squared spindle which is rotated by means of a lever, slide, and pawl, 9, 10, 11, Fig. 4. When opened, the flap is held by a pivoted serrated catch 6 on the link 1 which engages a serrated plate 7 on the sash frame. When lowering the window into its recess, the engagement between the rail 8 and link 3 ensures the automatic closing of the pivoted flap. When closed, the flap is held by a spring catch 13 and recess 14 when the sash is lowered sufficiently to free the catch from engagement with a projection 8<a> on the waist rail. The window has fillets attached and preferably covered with velvet to slide in the fixed guides. A weather-excluding rubber strip 15 engages the flap when shut and a rubber bead or the like is provided to engage the top of the well. When the windows are wide, a steel reinforcing plate is fixed to the bottom sash frame.
Patent GB-1471731-A (GB)
Title: Failsafe oscillator
IPC: B60L3/08
Filed: 1974-05-01
Abstract: 1471731 Fail safe switching circuits WESTINGHOUSE ELECTRIC CORP 1 May 1974 [11 May 1973] 19113/74 Heading H3T  A fail-safe switching circuit comprises a pair of input transistors 30 having their D.C. supply derived by means 4 from a periodic input signal, a pair of output transistors 34, 36 feeding a rectifier 14 via a transformer 10 and an R.C. feedback circuit 46, 48 whereby the circuit oscillates to produce a D.C. output if the periodic input signal is present. As shown, if the D.C. output is sufficient to break down a Zener diode 72 a thyristor 70 is fired, to connect the D.C. to output terminal 82, and a transistor 18 is rendered conducting to maintain this output connection. It is explained how failure of any component produces a safe condition.
Patent GB-755788-A (GB)
Title: Improvements in or relating to cross-linking of polymers
IPC: C08F8/32
Filed: 1954-06-30
Abstract: A cross-linked "at least half-halogenated" polymer containing fluorine and a plurality of saturated carbon chains bonded to each other by <FORM:0755788/IV(a)/1> linkages where R is a polyfunctional organic radical, A is hydrogen or a monofunctional organic radical and n is an integer of at least 2 are made by reacting the polymer, e.g. by heating with a compound of the formula <FORM:0755788/IV(a)/2> optionally in the presence of an inorganic base.  The term "at least half-halogenated" means substitution in the polymer molecule by halogen atoms of at least half of the possible positions for such substitution.  Polymers mentioned are homopolymers of 2-chloroperfluoropropylene, chlorotrifluoroethylene, bromotrifluoroethylene, dichlorodifluoroethylene, trifluoroethylene, and chlorofluoroethylene, copolymers of mixtures of these monomers, and copolymers of the monomers with ethylene, vinylidene fluoride, tetrafluoroethylene, perfluoropropylene, acrylic acid or acrylonitrile.  The cross-linking agent may be mixed mechanically with rubbery polymers, dissolved in a common solvent for the polymer and cross-linking agent and the solvent removed, or incorporated in the latex of emulsion polymers prior to coagulation, or by the direct action of the cross-linking agent under pressure on thin sections of the polymer.  Specified cross-linking agents are ethylene diamine, diethylene triamine, triethylene tetramine, tetraethylene pentamine, hexamethylene diamine, piperazine, 1,5-naphthalene diamine, diaminoanisole, diaminobenzoic acid, diamine stilbene, diaminotriphenylmethane, triamino-triphenylmethane, diaminophenol, tetramino 3,3 - dimethyldiphenyl-methane, diaminobenzene, triaminobenzene, triaminobenzoic acid, triaminophenol, 1,2-propylenediamine and 1,2,3-triaminopropane.  Inorganic basic compounds mentioned are lead oxide, magnesium oxide, and zinc oxide. The cross-linked polymers may be in the form of films, sheets, coatings for wires, yarns and fabrics made of asbestos, glass, synthetic resins and natural fibres.  The preparation of copolymers of chlorotrifluorethylene and vinylidene fluoride by bulk and aqueous suspension polymerization techniques is also described. In bulk polymerization the catalyst is preferably a halogen substituted acyl peroxide such as trichloroacetyl, trifluoroacetyl, difluoroacetyl, 2,4-dichlorobenzoyl, chloroacetyl, trifluorodichloropropionyl or dichlorofluoroacetyl peroxide, whilst in aqueous suspension a redox system, e.g. a mixture of potassium, sodium, or ammonium persulphate, sodium or potassium bisulphite, and a polyvalent metal salt such as ferrous sulphate or nitrate, may be used.
Patent GB-581666-A (GB)
Title: Improvements in or relating to the preparation of antimony pentafluoride
IPC: C01G30/00
Filed: 1944-10-06
Abstract: Antimony pentafluoride is prepared by reacting antimony pentachloride with hydrogen fluoride at 0-100 DEG C. in aluminium apparatus under controlled conditions.  Antimony pentafluoride is charged into an aluminium vessel fitted with a reflux condenser kept at -45 DEG  or lower and gaseous anhydrous hydrogen fluoride bubbled in.  The temperature of the charge is preferably kept at 10 DEG C to 30 DEG in the initial stages, and is allowed to rise to 60 DEG C. to 70 DEG C. for the final stages when the compound SbF5. 5HF formed is believed to decompose.  When all hydrochloric acid has been evolved, and after standing, the temperature of the condenser is raised to 12-25 DEG C. and the reaction mass gradually heated, until, at about 140-150 DEG C. all hydrogen fluoride has been boiled off, and antimony pentafluoride is left.  This may be purified by distillation from the reaction vessel employing an aluminium condenser.  The reaction may be carried out by adding antimony pentachloride to liquid anhydrous hydrogen fluoride.
Patent GB-150515-A (GB)
Title: Improvements in garment supporting clasps
IPC: A41F11/16
Filed: 1919-08-05
Abstract: 150,515. Stevens, W. H. Aug. 5, 1919. Sock - suspenders. -A suspender which can be used as a side garter or as a leg encircling garter is shown in Fig. 1, a joint member 18 connecting t w o lengths of webbing 16, 17 which have fastenings 19, 25 respectively attached to them. Each fastening has a specially-shaped slot 20. When used round the leg, the joint member 18, which may be a ring, is engaged by a hook-shaped part 22 of the fastening 19. The webbing 16 engages the narrow part of the slot as shown when used as a side garter, the hook is disengaged, the webbing is passed round to the other end of the fastening 19, and the garment is engaged by the slot 20. The slot 20 may terminate in a narrow portion which is straight, curved, or bifurcated as shown in Fig. 10. A pair of slots 27, 28 may be provided to engage the webbing.
Patent GB-1012682-A (GB)
Title: Improvements in or relating to apparatus for extracting square roots
IPC: G01L11/00
Filed: 1962-05-18
Abstract: 1,012,682. Electric analogue calculating. G.P.E. CONTROLS Inc. May 18, 1962 [May 18, 1961], No. 19307/62. Heading G4G. [Also in Division G1] In an apparatus for providing an electrical output signal representative of the square root of an applied input signal, a force in accordance with the input signal is applied to a movable element, a photo-electric transducer is connected to the movable element and provides an electrical signal representative of the displacement of the element which is applied after amplification to a force motor which is mechanically connected to apply a rebalancing force to the movable element. The force motor is arranged to provide a rebalancing force which varies in accordance with the square of the electrical signal applied thereto. The described embodiment relates to a system for producing an electrical signal proportional to the rate of fluid flow in a pipe 32. This is intercepted by an orifice plate 30, the square root of the differential pressure drop across this being proportional to the rate of flow. The pressures on the two sides of the orifice are conveyed by tubes 26, 28 to the chamber 54, where the pressure difference actuates the diaphragm 56 and thus operates the shaft 58, which is attached to an armature 62. This armature is coupled to a plate 76 through a linkage 84, 86 so that the plate 76 moves with the armature. A further plate 74 is attached rigidly to the mounting, and the two plates each carry a series of opaque parallel lines 78, 80 (see Fig. 6) which are offset one half line width when the plates are in a normal position. Relative movement of the plates causes the light emitted from the source 82 to be differentially received by the two cadmium sulphide photo-resistors 89, 90 which are arranged in a push-pull arrangement (see Fig. 7). The relative changes of resistance of the two photo-resistors causes the voltage on lead 110 to vary, and these changes are amplified in the transistors 94, 96 and fed to the winding 66 of the electric force motor. This causes the electric force motor to restore the armature 62 to its original position. Thus the force applied by the motor which is proportional to the square of the current flowing through its winding, balances the fluid pressure across the diaphragm 56. A measure of this current which may be taken at the output terminals 106, 107 therefore is proportional to the square root of the pressure difference across the diaphragm 56, the original input to the system. This measure will also be directly proportional to the rate of fluid flow giving rise to the original pressure difference. Electric force motors of the rotational torque variety may be used in applications where the input is a rotary one.
Patent GB-647171-A (GB)
Title: Improvements in or relating to a tool and a process of forming the same
IPC: B25B13/16
Filed: 1948-07-19
Abstract: 647,171. Casting composite articles. FRONTIER BRONZE CORPORATION. July 19, 1948, No. 19308. Convention date, Jan. 26. [Classes 83 (i) and 83 (ii)] [Also in Group XXIII] In making tools or implements such as wrenches, pliers and vices, a work-gripping jaw formed of a hard metal such as steel has an anchor portion about which is cast a body portion of a light-weight non-ferrous metal such as aluminium. The invention is described as applied to making a wrench. Each hard metal jaw comprises a work-gripping surface 17 and a back-face 18 from which projects a lug 20 with a hole 24. An anchoring pin 25 is passed through the hole and the jaw 15 is placed as shown in Fig. 6 between upper and lower parts of a mould into which is cast the light non-ferrous metal 8 to form a body portion of the tool. In order that the jaw portion may be subsequently replaced by driving out the pin 25, it is necessary that the cast metal should not adhere to the jaw portion and to prevent this a. thin coating of plumbago, " Bakelite " (R.T.M.) or sodium silicate may be applied to the jaw and to the pin. In a modified method, the pin 25 is omitted and the jaw anchored by the light metal which flows into the hole 24. The jaw may then be replaced by drilling through the body portion and hole 24 and anchoring the new jaw by means of a pin. Alternatively the holes for the pins may be drilled after casting.