baber/WOPTO huggingface dataset:
Patent GB-680047-A (GB)
Title: Improvements in agricultural mowing machines
Inventor: LEE FRANCIS
IPC: A01D34/06
Filed: 1950-07-04
Abstract: 680,047. Reaping machines. MASSEYHARRIS, Ltd. July 2, 1951 [July 4, 1950], No. 16603/50. Class 6(iii) A tractor-drawn mower comprises a wheeled frame A<SP>1</SP> supporting a cutter bar C<SP>2</SP> extending transversely from behind the wheels a which drive the knife-bar C' through gearing b, b<SP>2</SP>, a clutch A and a crank disc b<SP>3</SP> and pitman b<SP>5</SP>. The inner end of the cutter bar is supported by stays D, D<SP>1</SP> universally jointed to the main frame and the outer end is raisable, by a cable C<SP>3</SP>, about a longitudinal pivot C<SP>2</SP>. The frame A<SP>1</SP> terminates in a spring-loaded clevis A.
Patent GB-326715-A (GB)
Title: Improvement in or relating to ratchet detents or holding devices
IPC: F16D41/12
Filed: 1929-05-31
Abstract: 326,715. Drewry, J. S., and Shelvoke & Drewry, Ltd. May 31, 1929. Locking rotary elements by positive detents.- Counter-rotation of toothed gear trains, such as described in Specification 229,055, [Class 80 (ii), Gearing, Variable-speed &c.], is prevented by a toothed detent 1 normally held against a stop 7 by a spring-pressed plunger 8 and brought into engagement with a gearwheel 2, partly immersed in an oil-bath, by the action of a trip pawl 4. During normal rotation in the direction of the arrow, the pressure of the oil acting on the flat face of the pawl 4 holds it out of engagement, overcoming the action of the spring 6. Reference has been directed by the Comptroller to Specification 229,055, [Class 80 (ii), Gearing, Variable-speed &c.].
Patent GB-680990-A (GB)
Title: Improvements in musical boxes
IPC: G10F1/06
Filed: 1951-07-16
Abstract: 680,990. Musical boxes. BREITLER, R., and BREITLER, P. July 16, 1951 [June 6. 1951], No. 16784/51. Drawings to Specification. Class 88 (i). In a musical box, the tune barrel is driven by pawls operated by a reciprocating member by which the musical box is suspended. The musical box is suspended from an article which is rocked e.g. a rocking chair so that the swinging movement of the suspending member drives the tune barrel by means of two pawls which alternately engage with and slide back over the teeth of a wheel on the end of the tune barrel.
Patent GB-335894-A (GB)
Title: Improvements in the production and treatment of textile and other materials made of or containing cellulose
IPC: D01F2/00
Filed: 1929-05-31
Abstract: 335,894. Dreyfus, H. May 31, 1929. Yarns &c., treating with liquids.-Artificial filaments, threads, ribbons, films, &c. made of or containing cellulose are subjected to the action of sulpbo-carboxylic or other carboxy-organomineral acids, i.e. derivatives of di- or polybasic oxymineral acids containing at least one free hydroxy group and with one or more hydroxy groups replaced by alkyl, aryl, aralkyl or other organic radicles one at least of which contains a carboxyl group, of a concentration of 20 per cent or higher and preferably between 30 and 50 per cent. The treatment is stated to result in improved strength and/or elasticity, and/or a modification of surface, particularly of lustre. The treatment may be applied to finished materials containing natural or artificial fibres, e.g. viscose, nitrocellulose or cuprammonium artificial silks, either under tension or so as to allow the materials to shrink: or artificial filaments mav be treated continuously with their production. After treatment, the acids are preferably removed by washing with water alone or water containing alkali as base. Additions having no action upon the acids, e.g. glycerin, glucose or other sugars, sodium sulphate or other salts, alcohols, or sulphonated oils, may be made to the bath. In examples, viscose obtained from alkali cellulose unmatured or matured for a. relatively short time, e.g. 20-30 hours, and which viscose has been allowed to age for 70-80 hours at 17 C., is spun through nozzles 0.08 mm. diameter into a 50 per cent aqueous solution of sulpho-acetic acid at 10 C.. the length of immersion being 20 inches. The yarn is wound on a bobbin rotating at a peripheral speed of 30 metres per minute and such bobbin being run in or sprayed with water. A viscose as in the preceding example is coagulated in a bath containing 10 per cent sulphuric acid, 1 per cent ammonium sulphate, 15 per cent sodium sulphate and 10 per cent glucose; and the formed filaments are carried around a feed roller into a bath consisting of a 60 per cent aqueous solution of sulpho-acetic acid. Other suitable acids include sulpho-salicylic acid, sulphophthalic acid, sulpho-succinic acid and propane- #-carboxy-alpha-phosphinic acid. The Provisional Specification describes also treatment with the following acids, methyl sulphonic acid, ethylene sulphonic acid, propyl 1 : 2 or 1 : 3-disulphonic acid, ethanol sulphonic acid, benzyl sulphonic acid, benzene sulphonic acid, phenol mono and disulphonic acids, naphthalene and naphthol sulphonic acids, methyl phosphinic acid, and nitrophenyl-phosphinic acid.
Patent GB-968921-A (GB)
Title: Improvements in powder type fire extinguishers
IPC: A62C13/00
Filed: 1962-05-02
Abstract: 968,921. Fire-extinguishers. SAMUEL JONES & CO. (ENGINEERING) Ltd., and C. H. PHILLIPS. April 29, 1963 [May 2, 1962], No. 16867/62. Heading A5A. A fire-exinguisher from which powder is ejected by gas pressure has a gas discharge cartridge 5 mounted outside the powder container 4 in a housing 7 utilizable as a handle and a single press lever 21 actuable to pierce the cartridge by means of a piercing plunger 10 operated by a pivoted member 24 and to open a valve 17 normally closing the discharge nozzle 20 substantially simultaneously.
Patent GB-800932-A (GB)
Title: Improvements in or relating to the extraction of liquid, such as water, from air or other gases
Inventor: ANDERSON NORMAN
IPC: B64D13/06
Filed: 1953-06-19
Abstract: 800,932. Separating liquid particles from air and other gases. GODFREY & PARTNERS (HOLDINGS), Ltd., Sir G. Sept. 20, 1954 [June 19, 1953], No. 16945/53. Class 123(3) Extremely finely divided liquid particles suspended in air or other gas, for example those forming the fog produced in the air stream leaving an aircraft air conditioning unit such as that described in Specifications 769,551, 770,430 [both in Group XXVI], 771,756 and 772,473, are removed by first passing the gas through a restricted flow path of such form as to produce coalescence of the particles into larger droplets and then through a zone in which the larger droplets are deposited from the gas stream as a result of the formation of vortices therewithin. The apparatus consists of a two-part cylindrical casing 15, 16 having a gas inlet 13 and outlet 14. The mist-laden gas entering the inlet 13 is guided by vanes 20, 20a, against a cylindrical element 19 made, for example, of glass fibre or porous metal and flows therethrough into an annular space 24, the mist particles coalescing during their passage through the element into larger droplets which are re-entrained in the gas. The gas then flows into the casing section 16 across which extends a number of tubes 30 arranged in staggered rows, the entrained droplets depositing on the downstream sides of the tubes where vortices are set up in the gas flow. Liquid drains from the tubes through holes 31 and discharges from the casing through a pipe 34. If the element 19 becomes clogged with dust or freezes, the build-up of pressure which occurs in the casing section 15 displaces a spring-loaded relief valve 37 to allow for the continued through-flow of air.
Patent GB-390360-A (GB)
Title: Improvements in or relating to tin-plating
IPC: C23C2/14
Filed: 1932-06-16
Abstract: 390,360. Coating with metals. NIER, B., Beierfeld, Saxony, Germany. June 16, 1932, No. 17053. [Class 82 (ii).] Articles such as storm lanterns which are to be tinned are mounted on a centrifugal device which is immersed in the molten tin, withdrawn, and rotated within a movable protective ring which, after the removal of the surplus tin from the articles, is lowered into the tinning bath to return the tin adhering to it. The articles are mounted on a centrifugal device 4 which can be lowered into and raised out of a tinning bath 2. On raising the device from the bath it is rotated by a shaft 3 to remove surplus tin from the articles, the tin thrown off being caught by a ring 6, preferably constructed in the manner of a Venetian blind, which at the end of the operation is lowered into the bath. The ring is surrounded by iron clips with projecting ends 8 to which are fitted rods 11 which pass through guide bearings 12. Weights 14 connected to the ends 8 by ropes 15 passing over rollers 13 are provided to counterbalance the weight of the ring 6 and the ring is moved up and down by a handle 10 on a transverse bar 20 connecting the ends 8. The bath 2 has a flange 17 which rests on a ring 16 fitted in the masonry 1.
Patent GB-594930-A (GB)
Title: Improvements in or relating to the manufacture of compound fabrics
IPC: D06M17/04
Filed: 1945-07-04
Abstract: 594,930. Compound fabrics. MEYER, H., and HART PRODUCTIONS, Ltd. July 4, 1945, No. 17065. [Class 140] Compound stiffened fabrics for shirt collars, cuffs, &c. are made by coating or impregnating a fabric composed wholly or partly of yarns of a water-insoluble thermoplastic resin with a solution or dispersion of an initial condensation product of a thermosetting resin, drying the fabric at a temperature insufficient to harden the thermosetting resin, associating the fabric with one or two layers of uncoated and unimpregnated fabric, and subjecting the associated layers to heat and pressure without the application of solvent for the thermoplastic resin, to harden the thermosetting resin and render the thermoplastic resin yarns adhesive. The thermoplastic resin may be a polyvinyl resin or a polymerized ester of acrylic or methacrylic acid such as polymethyl methacrylate, and the yarns thereof, which may contain a plasticiser may be mixed, in the warp or the weft or in both, with cotton, linen, regenerated cellulose, wool or silk yarns. The outer fabrics may be cotton, cellulose acetate or artificial silk. The thermosetting resin may be a condensation product of an aldehyde with phenol, urea, thiourea, dicyandiamide, aniline or acetone, or an alkyd resin. A fabric with a warp of polyvinyl acetate fibres and a weft of cotton is coated with an initial phenolformaldehyde condensation product diluted with ethyl alcohol, dried at 40‹ C. and pressed at 150‹ C. between two cotton fabrics.
Patent GB-437759-A (GB)
Title: Improved method of controlling the feedwater supply to steam generators
IPC: F22B35/10
Filed: 1934-06-08
Abstract: 437,759. Instantaneous steam boilers. BESLER, W. J., 917, West 7th Street, Plainfield, New Jersey, U.S.A. June 8, 1934, No. 17092. [Class 123 (ii)] A predetermined portion of the feedwater supplied to a once-through steam generator is caused before introduction into the boiler to exert an indirect cooling effect upon the vapours produced. In addition to the feedwater supplied to the boiler tubing 21 from a reservoir 18 by means of a pump 17 under the control of a hand valve 25 and a steam valve 30, a simultaneously operated valve 31 allows feedwater to pass through a tube 34 within the boiler tubing immediately before a thermostat 26 and be introduced at a point 35 preferably well into the saturation zone. Water may first be supplied by a hand pump 18<a> and the boiler is started up by closure of a master switch 1 whereupon current is supplied to an air blower motor 11 which also operates a magneto 13 connected to igniting means 14 associated with a carburetter 15. A conduit 24 supplies steam to the pump 17. When a predetermined pressure is reached a regulator 5 breaks the blower circuit and a solenoid 9 closes a valve in conduit 24. A predetermined temperature, e.g. 750‹ F., causes the thermostat to close a circuit which includes the solenoids of valves 30, 31, and at about 800‹ F. to separate terminals 7, 10, in the blower circuit. In a modification the tube 34 constitutes a jacket around a portion of the boiler tubing.
Patent GB-509647-A (GB)
Title: Electromagnetic device for measuring mechanical forces and moments
IPC: G01L1/10
Filed: 1938-06-09
Abstract: 509,647. Frequency measurements ; electric signalling systems. MAIHAK AKT.-GES., H. June 9, 1938, No. 17153. Convention date, June 21. 1937. [Class 37] [Also in Group XXXVIII] A mechanical force to be measured is applied to a steel string 1, the frequency of vibration of which is measured by measuring the frequency of the alternating E.M.F. induced in an electromagnet 2. This is applied to the grid of the first valve 3 of an amplifier 3 ... 5, the output of which energizes a second electromagnet 7 which maintains the oscillations of the string 1. The output of the amplifier is also applied through a transformer 8 to the grids of two valves 9, 10, which pass alternate half waves of current through a condenser 11. The charging current in one direction is measured by an ammeter 12, and is a measure of the frequency.
Patent GB-459948-A (GB)
Title: Improvements in and relating to methods of increasing the viscosity of latex mixes
IPC: C08L7/02
Filed: 1935-06-14
Abstract: The stability and viscosity of latex mixes are increased by adding thereto a natural saponifiable resin, e.g. colophony or shellac, in solution or emulsion, and a water-soluble alkali silicate, e.g. sodium or potassium silicate, and allowing the resin to react with the silicate.  The resin may be dissolved in trichloroethylene, carbon tetrachloride, benzene, benzol or turkey red oil or other alkaline salt of a sulphonated oil, or may be emulsified in glue, albumen or a soap.  The resin and silicate may be mixed together, the gelled mixture being added to the latex. Specification 298,628, [Class 70], is referred to.
Patent GB-1006430-A (GB)
Title: Improvements in and relating to rolls, and more particularly rolls for manufacturingreinforcing wire, and use of this roll
IPC: B21C3/08
Filed: 1962-05-04
Abstract: 1,006,430. Rolling wire. W. HUFNAGL. May 4, 1962 [May 5, 1961], No. 17279/62. Heading B3M. Rolls for producing ribbed wire suitable for use as reinforcing wire form a centre pass which is substantially closed, at least part of the concave contour of each roll being an arc of a circle whose radius is in a ratio of at least 1À04 : 1 with the diameter of the wire to be rolled. Three profiled rolls 6, 6a and 6b may suitably be employed, the rolls being freely rotatable or driven and being radially and axially adjustable. Part of each roll profile may be flat or formed by an elliptical line and ribs of longitudinal or helical form may be provided. Six rolls may form a pass, and a number of rolling head may be mounted in series. If desired, the rolls may be skewed.
Patent GB-1144719-A (GB)
Title: Apparatus for closing fire protection doors aboard a ship
IPC: E05F15/56
Filed: 1967-04-14
Abstract: 1,144,719. Controlling fire doors in ships. J. SCHOENROCK. 14 April, 1967 [6 Dec., 1966], No. 17279/67. Heading A5A. [Also in Division E2] A centrally controlled, hydraulically operated apparatus for closing fire protection doors aboard a ship above the bulkhead deck thereof while simultaneously allowing for the possibility of the manual opening of any of said doors is illustrated with reference to Figures 1 and 2 and has each door 1 and frame fitted with a double acting hydraulic piston 5 and cylinder unit 3 which may be biased in either direction by means of a centrally operable source of hydraulic pressure (switchboard 26, hydraulic pump 14 and fluid container 43) and which unit has similar discharging capacities at each end, and wherein either the piston or cylinder part of the unit is rigidly connected to the door with the other part being rigidly connected to the frame; said apparatus being characterized in that the two ends of each of the cylinders are interconnected by a by-pass line 11 having a normally closed manually operable valve 12 therein whereby the opening of any of said valves allows the associated door to be opened manually. In Figures 1 and 2, the hydraulic fluid is supplied to the cylinders by supply lines 18 and 19 which have interposed therein a reversing valve 20 for interchanging the flow of fluid.
Patent GB-567170-A (GB)
Title: Improved chuck or holder for twist drills and similar tools
IPC: B23B51/12
Filed: 1943-10-21
Abstract: 567,170. Sockets. KENNERDELL, E., [Representative of KENNERDELL, J.]. Oct. 21, 1943, No. 17340. [Class 83 (iii)] Sockets for holding tangless drills are made with a number of slots a<1> extending almost to the smaller end. A number of such sockets A, Fig. 5, may be nested to hold small drills. The sockets may be bored to take parallel shank drills and they may have cylindrical extensions to enter the slot c<1> in the spindle to facilitate removal by a drift.
Patent GB-169512-A (GB)
Title: Improvements in and relating to machines for cutting and grooving precious and semi-precious stones and other hard materials
IPC: B28D5/02
Filed: 1920-06-25
Abstract: 169,512. White, A. E., (Toledo Scale Co.). June 25, 1920. Disc apparatus; wheels.-A machine for cutting grooves in agate bearings for weighing and other apparatus comprises a cutting disc 13, Figs. 2, 3, and 5, of soft steel or like material carried by a vertical spindle 6 and adapted to be moved by a weight to contact with the agate blocks carried on the periphery of a rotating work-carrier 15. The spindle 6 is journaled in bearings 5 provided on an arm 4 pivotally mounted on a bracket 1 secured to a wall &c., and the work-carrier 15 is carried by a spindle 3 journaled in bearings 2 provided on the bracket. The shafts 3, 6 carry pulleys 7, 8 respectively, and a belt 12 is passed around these pulleys and around a pulley 9 on a driving-shaft 10 and a pulley 11 resiliently connected to the pulley 9. The arm 4 is swung to bring the disc up to the work by means of a weight 30 carried by a chain 31 secured to the arm. In order to stop the cutting after a predetermined depth of groove has been reached, the bracket carrying the pulley 11 is provided with pins 11<b> slidable in sleeves 11<c> of the bracket of the pulley 9 and provided with spacers 11<d> which, on contacting with both the bracket of the pulley 11 and the sleeves, allow the belt 12 to become slack and to cease to rotate the discs 13, 15. The cutting- disc comprises a ring 14<a>, Fig. 5, having a V-shaped peripheral edge secured to a ring 14 clamped between discs 13a mounted on the shaft 6. The agate blocks are mounted by means of cement in recessed segmental blocks 17, Fig. 7, which are secured by bolts &c. in the channelled part 16, Fig. 4, of a disc 15 clamped between discs 15a mounted on the shaft 3. The cutting- disc and work-carrier are surrounded by a tank 24 containing carborundum and emery powder suspended in water or light oil; the tank may be raised and lowered by means of a handle 27<a> operating pinions 26 engaging racks formed on the supports 23 of the tank. The grooves in the agate blocks are finished in the finishing- machine described in Specification 163,927.
Patent GB-693227-A (GB)
Title: Improvements in and relating to gas turbine units
IPC: F02K3/00
Filed: 1950-07-11
Abstract: 693,227. Gas turbine; jet propulsion plant. SZYDLOWSKI, J. July 11, 1950 [July 12, 1949], No. 17387/50. Class 110(iii) A plant comprising a turbine, a compressor and a ducted fan on the same shaft, the fan feeding the compressor and a by-pass to the jet, is provided with blades 14b disposed in the duct upstream of the fan. The blades 14b are controlled by members 24, 25, 26, 27 acting on gearing 17b, 16b. The member 27 may be hand controlled or operated by a piston 29 which is connected to the auxiliary motor of an automatic regulator. Control of the blades may be effected in conjunction with a fuel regulator responsive to the speed of the turbine shaft. As shown, fuel supplied by a pump 42 is controlled by a rotary valve 44 which adjusts the output towards the valve 45 of a centrifugal regulator 47. An adjustable screw 48 controls the flow of idling fuel which by-passes the regulator. A lever 50 directly controls the valve 44 and controls the tachometric regulator at 46 and the blades through cams 51, 52 respectively. Control of the blades may be effected in conjunction with a variable pitch propeller or one or more variable factors such as atmospheric pressure, ambient temperature or the temperature of the combustion chamber. Specifications 686,908 and 693,217 are referred to.
Patent GB-234317-A (GB)
Title: Improvements in power transmission
IPC: F16H33/12
Filed: 1924-02-14
Abstract: 234,317. Constantinesco, G. Feb. 14, 1924. Addition to 185,022. Variable-speed ratchet gearing rendered automatic by the action of an oscillating mass as described in the parent Specification. The reciprocating movement is derived from a driving rotating mass 160 which may share its function of automatic control of the speed ratio with another mass 164 suspended from a fixed pivot 163. In one form, a pendulum or oscillating pivoted mass is interposed between the centre 161 and the ratchet 40. The driving rotary masses may be upon the casings of engines which casings with the engines may be part of the automatic control.
Patent GB-616372-A (GB)
Title: Improvements relating to electrical remote control equipment
IPC: G08C19/20
Filed: 1946-06-12
Abstract: 616,372. Electric control systems. ROSS, T. W., WADE, W. S., [Representative of PRICE, D. R.], EIDSFORTH, S. J., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. June 12, 1946, No. 17602. [Class 40 (i)] [Also in Group XXXVII] In a remote control apparatus operated by a train of A.C. impulses a fast acting thermal relay device steps a timing member in response to received impulses and a slow-acting thermal relay, responsive to a prolonged signal, actuates a switch if the timing member is set in the position appropriate for that switch. A signalling frequency superimposed on the mains frequency is selected by a tuned transformer 10 and passed to a coil 3 which vibrates a reed 2 to interrupt a contact 4 and thus remove a shortcircuit from a resistance 7. This resistance is heated and expands to close a contact 6 and connect the elements 12, 13 of quick and slowacting thermal devices respectively across the mains supply. In operation a first long impulse of forty seconds is followed by short impulses of four seconds, the number depending on the device to be selected. The initial pulse closes contact 6 and energizes both heating elements. Element 12 expands and allows spring 33 to withdraw a pawl 16 clear of ratchet-wheel 17 and element 13 heats a bimetal strip 22, causing it to bend towards the baseboard I and lower a retaining pawl 26 into engagement with the wheel. As the pawl 16 is quicker in responding, the wheel 17 is free for a short time before being engaged by pawl 26 and the counting mechanism.is reset against a stop 32 by a spring 29. When the selecting impulses are received, switch 6 and quickacting pawl 16 operate in time with them and wheel 17 is stepped one tooth at each impulse. The slow acting strip 22 remains bent during this time. At the end of the impulse train one or other of two pins 23, 30 is positioned adjacent the operating lever 24 of a toggle switch and when the element 22 cools, its forward movement thrusts the pin against the switch lever to actuate it in the appropriate direction. Specification 568,952 is referred to.