baber/WOPTO huggingface dataset:
Patent GB-347755-A (GB)
Title: Improvements in or connected with feed-water regulators for boilers
IPC: F22D5/14
Filed: 1930-02-04
Abstract: 347,755. Feedwater regulators for steam boilers. DUNN, H., 88, Chancery Lane, London.-(Northern Equipment Co.; 111, West 11th Street, Erie, Pennsylvania, U.S.A.) Feb. 4, 1930, No. 3718. [Class 123 (ii).] Automatic apparatus for controlling the feed of water to a boiler comprises a feed valve and a thermostat responsive to the variations in the flow of steam from the boiler, between which is interposed means such as a lever-cam system arranged to cause the movement of the valve to vary proportionately to the steam flow. A thermostatic tube 10 is connected at one end by a pipe 12 to the steam main 13 in which an orifice 14 is inserted and at the other end to the water space of the boiler 17 by pipes 15, 16. The steam pressure in the tube varies with the load on the boiler and the water level in the tube varies accordingly. The variation in length of the tube operates the cam 24 through lever 19 and rack 23. The roller 25 associated with the cam through a system of levers 26 .. 30 operates the valve rod 31 of the valve 32. The latter adjusts the flow of pressure fluid into the cylinder 33 and accordingly operates the piston 36, which controls the plunger 39 of the feed valve 18. To compensate for the variations in water pressure through the valve when the position of the plunger is varied, a control valve 50 is provided. A second thermostatic tube 63 assists in maintaining constant water level in the boiler. The system may be modified so that the means for operatively connecting the thermostatic tubes with the feed valve may be placed at a remote point. The connecting apparatus comprises a system of hydraulic bellows transmitting movement at a distance by levers, this movement completing electric circuits resulting in the rotation of a motor and consequent closing or opening of the feed valve. In a further modification, the thermostatic tubes are so arranged that the upper ends of the tubes operate the lever-cam system. Specifications 297,305 and 297,306, [both in Class 123 (ii), Steam generators], are referred to.
Patent GB-1515766-A (GB)
Title: Polymeric films having selective light transmissive properties
IPC: C08L27/00
Filed: 1976-01-30
Abstract: 1515766 Polymer films having selective light transmission properties BRITISH PETROLEUM CO Ltd 17 Jan 1977 [30 Jan 1976] 3741/76 Heading C3K A polymer film transmissive to visible light has incorporated therein, as active substance to alter the wave length of the light transmitted, 2,5 - di - (5 - - tert - butyl - 2 - benzoxazolyl) thiophene and a hydroperoxide scavenger. The scavenger may be dilauryl thiodipropionate, a trithioalkyl phosphate or a metal thiocarbonate. Antioxidants and free radical scavengers may also be present.
Patent GB-872827-A (GB)
Title: Improvements in or relating to inflatable tubes
Inventor: OLDHAM WALTER
IPC: B29D22/02
Filed: 1959-02-03
Abstract: 872,827. Tents. FRANKENSTEIN & SONS (MANCHESTER) Ltd. Feb. 2, 1960 [Feb. 3, 1959], No. 3781/59. Class 20(1) [Also in Group XXXIII] An inflatable tube which is required to assume a smoothly curved profile, e.g. an arch support for a tent, is produced by joining the longitudinal edges of a straight strip of bias-cut fabric A, at B. The strip A may be joined by its longitudinal edges to a similar strip of straight-cut fabric or a similar strip of bias-cut fabric. The strips may be parts of multiple texture fabrics.
Patent GB-449415-A (GB)
Title: Improvements relating to cylindrical grinding machines
IPC: B24B49/04
Filed: 1935-02-06
Abstract: 449,415. Cylindrical grinding-machines. CHURCHILL MACHINE TOOL CO., Ltd., Broadheath, near Altrincham, Cheshire, and ASBRIDGE, H. H., Reigate, Moss Lane, Ashton-on-Mersey. Feb. 6, 1935, No. 3824. [Class 60] In a cylindrical grinding - machine, the work c is gauged by a device comprising an arm a carrying a die b contacting with the work at a point diametrically opposite to that at which the grinding-wheel d operates, the arm a being carried by a pivot pin a<1> mounted in a bracket e adjustable, by rack-and-pinion gear j, k on the wheel guard f or some other part of the grinding-head. The arm a is acted upon by a spring g, which may hold the die b against the work, or may move to the other side of the pin a<1> to hold the arm a in an inoperative position. The pin a<1> also carries an arm h, which actuates a dial or other gauge i ; movement of the arm a may cause electrical contacts to close circuits to indicate when rough and finished sizes of work have been reached. In order to gauge work having parts of different diameters, the arm a carries a member having thereon a number of dies of lengths to suit the different diameters, the member being turned by a wheel to bring the required die into the operative position. For gauging a spline shaft a die of the form shown in Fig. 4 is used.
Patent GB-861476-A (GB)
Title: Improvements relating to machines for forming pads or padding from textile or other fibres
Inventor: CALLAGHAN ALBERT EDWARD
IPC: D04H1/00
Filed: 1957-02-04
Abstract: 861,476. Felt; agglutinated fibrous materials. CALLAGHAN & SON Ltd., A. E. Feb. 4, 1958 [Feb. 4, 1957], No. 3831/57. Classes 42 (2) and 140. In a machine for making pads or padding, textile or other fibres (such as coir, horsehair or hog's hair, flax, wool, cotton; string or fibreglass) are fed from a hopper 20 to a face 11 and are thereby blown on to a vibrating tray 12 via a duct 13. The duct 13 is fitted with an adjustable louvre 14 and with a spray nozzle 15 by means of which the fibres may be sprayed with a dye or bonding agent for example. The bonding agent may be an artificial resin, or rubber latex. At a convenient position on the tray 12 a removable baffle (not shown) is provided, to force a barrier against which the fibres build up, and on removing the baffle and allowing the continued vibration of the tray 12, a continuous length of fibrous padding will be formed. The padding may be guillotined to form separate pads, or may be led on to other machinery for further processing, e.g. drying, or to be made into rope. The thickness of the padding may be varied by adjusting the cover 19 of the tray 12 and the louvre 14. The overall cover 25 of the machine is provided with apertures for relieving the air pressure which builds up in the tray 12, and as shown in Fig. 1 a suction-box 24 is mounted above the apertures and is connected via a dust separator 27 with the inlet of the fan 11. Spray devices 23 may also be provided.
Patent GB-925900-A (GB)
Title: Improvements in process and apparatus for producing hydroxyethylcellulose
IPC: B01L3/00
Filed: 1960-02-05
Abstract: <PICT:0925900/IV(a)/1> Hydroxyethyl cellulose is produced by continuously passing a bed of loose, bulky particulate alkali cellulose fibres through a chamber containing ethylene oxide gas, supporting the bed on a vibratory conveyer which subjects the bed to a succession of vibratory impulses, so that the bed alternately rises up from the conveyer and falls back on to the conveyer many times in its passage through the chamber thereby causing the gas to penetrate the bed and react uniformly with the fibres producing hydroxyethyl cellulose containing 2 to 8% of substituted ethylene oxide and which is insoluble in water but substantially completely soluble in a 5% aqueous sodium hydroxide solution at 0 DEG C.  As shown in Fig. 1a, a fibrous mass of alkali cellulose is mechanically fed into a gas tight hopper 4 from which it is fed by means of a gas-tight power driven feed valve 5 into the lower portion of the reactor 6.  The reactor comprises a helical vibratory conveyer 7 supported around a central shaft 8 and mounted on the base 9 which is provided with the vibrating device 10, and the gas tight tower structure 11.  The conveyer 7 is a helical trough of rectangular cross-section, open at the top and the fibrous alkali cellulose P travels up the conveyer due to the vibration of the latter.  Ethylene oxide gas is introduced into the reactor 6 through the inlet 12 and is withdrawn from the reactor through the outlet 13 for recirculation through the system. The HEC formed in the reactor 6 is discharged into the duct 14 from which it is fed through the gas-tight power-driven valve 15 into the feed duct 16 in which the HEC is conveyed into the hopper 17.  The HEC is passed through gas-tight power-driven feed valve 18 into the lower portion of the reactor 20 which is similar to the reactor 6 and in which the HEC is aged by controlled oxidation with air or oxygen introduced into the reactor 20 through inlet 22.  The aged HEC passes through duct 23, valve 24 and duct 25 into apparatus for washing the HEC with water and pelleting and drying the washed product.  U.S.A. Specifications 2,614,102 and 2,847,411 are referred to.
Patent GB-686883-A (GB)
Title: Apparatus for utilising waste heat from a fireplace or combustion furnace for heating air
IPC: F24B1/188
Filed: 1951-02-21
Abstract: 686,883. Heating air. COPLEY, W. C. Feb. 21 1951. No. 4198/51. Class 64 (iii) An arrangment for heating a room or other enclosed space comprises at least one tube of heal resisting material passing upwardly through the fire area 6 of a fireplace or combustion furnace and along the interior of a chimney 2 leading from the fire area said tube having an inlet for air to be heated at its lower end and being lagged with heat insulating material 16 above the fire area and passing through the wall of the chimney for discharge of heated air into the room or space to be heated. In the form shown two air heating tubes 3, 4 are provided, air to be heated entering the tubes through inlets 13, 14 and heated air being discharged through outlets 15.
Patent GB-960321-A (GB)
Title: Cold forming of asymmetric articles
Inventor: WILSON DENNIS RICHARD
IPC: B21K1/76
Filed: 1962-02-03
Abstract: 960,321. Forging bicycle pedal cranks. RALEIGH INDUSTRIES Ltd. Jan. 18, 1963 [Feb. 3, 1962], No. 4249/62. Heading B3A. An article such as a bicycle pedal crank, Fig. 4, is made by forming a preliminary workpiece 12, Fig. 3, having a shape similar to the article and then pressing the workpiece between open dies. The workpiece 12 may be made by turning or preferably by upsetting the ends 1 1a, lie of a cylindrical bar and swaging the shank 11b. Flattened upper and lower faces 12a, 12b are provided by cold pressing between dies which permit lateral flow; simultaneously depressions 12e are formed which can be subsequently drilled through. A phosphate treatment of the workpiece provides lubricant during pressing. Subsequently, the crank is welded to a chain wheel (Fig. 6, not shown).
Patent GB-194111-A (GB)
Title: Improvements in or relating to school furniture
IPC: A47B39/04
Filed: 1922-02-14
Abstract: 194,111. Bennet, J. D. Feb. 14, 1922. School desks; desk frames.-An end standard for a combined school desk and seat comprises a metal bar or tube 5 - - 11 bent into the shape shown and attached to a sole plate 1 of wood &c. When the desk is supplied without the seat, each sole plate is shortened and the part 8 is formed as a lug corresponding to the lug 5.
Patent GB-891654-A (GB)
Title: Isocyanatoaryl esters and amides of phosphoric and thiophosphoric acids
IPC: C07F9/12
Filed: 1959-02-06
Abstract: The invention comprises isocyanatoaryl phosphorus compounds of formula <FORM:0891654/IV (b)/1> where X is oxygen or sulphur; n is 0, 1 or 2, A represents a radical obtained by removing two-active, hydrogen atoms from a di-hydroxy terminated polyester, polyether or alcohol; R is a substituted or unsubstituted O-aryl, O-aralkyl, O-alkaryl, O-cycloalkaryl, S-aryl, S-aralkyl, S-alkaryl, S-cycloalkaryl, N-(aryl)2, N-aryl-N-alkyl, N-(aralkyl)2, NH-aryl, N-(alkaryl)2, NH-aralkyl or N-(cycloalkaryl)2 radical; R1 and R11 may be the same or different and may represent the same groups as defined for R or may be substituted or unsubstituted O-alkyl, O-cycloalkyl, S-alkyl, S-cycloalkyl, N-(alkyl)2, N-(cycloalkyl)2, O-vinyl or O-cyclopentadienyl radicals; and at least one of the aromatic radicals contains at least one aromatically bound isocyanato group. Substituted "R" groups may contain halogen, alkoxy, carboxylic ester or unsaturated hydrocarbon radicals.  The compounds are prepared by reacting the corresponding aminoaryl compounds or their hydrochlorides with phosgene to convert the amino groups into isocyanate groups, e.g. by mixing the amine and phosgene in the cold and heating the resulting carbamic acid chloride suspension at 80 DEG C.-120 DEG C. while introducing further phosgene.  An inert solvent may be present.  Specifications 737,487, 761,592, 761,594 and 887,335 are referred to.
Patent GB-827269-A (GB)
Title: Method of making induction-motor squirrel cages
IPC: H02K15/00
Filed: 1958-02-10
Abstract: 827,269. Making dynamo-electric machines. KETAY Ltd. Feb. 10, 1958 [May 13, 1957], No. 4298/58. Class 83 (2). [Also in Group XXXV] A squirrel-cage rotor is made by forming grooves 20 on the inner surface of a tube 22 of conducting material, e.g. aluminium, copper or brass, and inserting therein toothed laminations 10 mounted on an arbor 12, with a key 14 to ensure alignment. The tube is slightly longer than the stack of laminations and its ends are spun over to form end rings. The outer surface of the tube is then machined to expose the laminations, the lands 24 remaining to form rotor bars. The grooved tube may be extruded, or be a broached tube, and the grooves may be skewed.
Patent GB-1429241-A (GB)
Title: Resilient support structure for a vehicle seat
IPC: B60N2/52
Filed: 1973-01-29
Abstract: 1429241 Resiliently mounted seat KG NYSTROM 29 Jan 1973 [4 Feb 1972] 4349/73 Heading A4U [Also in Division F2] A resilient support structure for a vehicle seat has a base 1 for attachment to the floor and a frame 2 for bearing the seat (with a backrest and on a further frame displaceably mounted on the frame 2) carried by (pairs of) arms 3 and 4, one end of each arm being pivoted to the frame 2 and the other end secured to a shaft 5 or 6 rotatably supported by the base 1; a spring 16 in the base urges the frame 2 upwards and the shafts 5 and 6 are inter-connected, for rotation in unison, by'a  link 7 pivoted at its ends to an arm 8 secured to the shaft 6 and an arm 10 mounted on the shaft 6, the arm 10 being slightly longer than the arm 8 so that there is a near-parallelogram linkage, there being a telescopic damper 19 inter-connecting the arm 8 and the frame 2 for compression or extension when the frame 2 changes level. The damper may offer greater resistance to upward than to downward movement of the frame. The compression spring 16 acts between a fixed stop 17 and the end cross-piece of a yoke 15, guided on a coaxial rod 18 and whose arms extend along either side of the spring 16 to an adjustable attachment to a small yoke 11 whose arms are secured to the front shaft 5. The front end of link 7 is pivoted on a short shaft 9 extending from the arm 10 to one arm of the yoke 11. The spring loading is adjusted by rotation of a bolt 12, carried by the yoke 11, by means of a ratchet wrench 13. A nut (14) thus moved along the bolt, is supported on a shaft rotatably supported on the yoke 15 at its open end.
Patent GB-397489-A (GB)
Title: An improved method of producing multi-colour photographic images
IPC: G03C7/06
Filed: 1932-02-15
Abstract: 397,489. Colour photography. GERDANOVITS, V. VON, 2, Scudier Platz, Temesvar, Roumania. Feb. 15, 1932, No. 4447. Convention date, Feb. 17, 1931. [Class 98 (ii).] A method of producing emulsion screens for colour photography is characterized in that different emulsions are applied in screen form to a base, of which emulsions the one pertaining to a particular colour, for example, blue, possesses a total sensitiveness which is greater than those of the remaining colours to such an extent that the amount of light which is necessary for producing the image in the blue elements. of the screen is without effect on the remaining emulsion screen elements pertaining to the other colours. The screen may be produced by applying the screen elements to an elastic base as described in Specification 358,187, and transferring to the final screen carrier. The emulsion may be thickened by the addition of dextrine, sugar, gum arabic, albumen or the like, while collodion emulsions may be thickened with resins or artificial resins. A yellow protective dyestuff such as auramine G may be added to the red and green elements of the screen. This dyestuff may be removed eventually by dissolving out in water and the residual traces expelled by treatment with an aqueous solution of hydrogen peroxide. The red screen elements are dyed with indigosol scarlet H.B., the green with indigosol green A.B., and the blue with indigosol 04B. These dyestuffs are fixed by the addition of sodium nitrate and subsequent treatment with a solution of sulphuric acid. The silver image may be toned by platinum, gold, sulphur, selenium or other baths, or with a suitable dye after bleaching in a bath of potassium ferrocyanide. Iron oxalate may be the developer. Paper for the base may be impregnated with resin, wax, bitumen, artificial resins, paraffin, or may be attached to metal foil. White opal glass, porcelain, or chromium-plated iron or aluminium may also be employed as base.
Patent GB-267292-A (GB)
Title: Improvements in means for extracting dust from and settling fur, hair, or the like
IPC: A47L7/00
Filed: 1926-02-17
Abstract: 267,292. Nowarth, S. W. Feb. 17, 1926. Openers, cleaners, and scutchers.-Apparatus for extracting dust from and settling fur, hair, &c. consists of a chamber to which the fur is fed by air blast and has one side formed by a pair of rotary cylindrical sieves each divided internally into a plurality of isolated compartments and means for putting the compartments successively in communication with the atmosphere or a suction chamber so that the fur &c. adheres to the corresponding parts of the sieves and is carried outside the chamber and deposited in a collecting chamber by the equalisation of the air pressures on the opposite sides of the sieve parts. As shown in Fig. 3, the two sieves 5 form the major part of the bottom of a chamber 1 to which the fur is fed by an air blast through the opening 3. The sieves are carried by frames consisting of an end disc and radial strips 8 forming sectorshaped compartments all of which are open at the other end and register in succession with the ports 12 provided in the side of the casing and communicating with exhaust or suction pipes 13. Passage of air other than through the sieves is prevented by suitably covering the various necessary clearances with strips. In a modification, the radial partitions are dispensed with and the upper part of the sieve isolated pneumatically from the lower part by a shield hanging freely from the shaft of the sieve.
Patent GB-392681-A (GB)
Title: Improvements in fastenings for attache cases, suit cases and the like
IPC: E05B65/50
Filed: 1932-02-16
Abstract: 392,681. Hasp fastenings. CHENEY, C. W., Factory Road, Soho, Birmingham, Feb. 16, 1932, No. 4524. [Class 44.] A fastening for an attachÚ case has the hand-operated part f of the blocking device revolubly mounted upon the peg d<2> rigidly attached to the bolt d, and the knob or cover g holds the part f against the front plate a. The spring e operates between one edge of the slot d<4> in the bolt and an abutment c<2> of the back-plate c. The projections g<2> of the cover g are clinched behind the bolt so that the knob g, blocking part f, and bolt d can slide together. Normally the deep wall f<2> of the blocking device rests against the abutment a<4> and so prevents any sliding movement of the bolt. When the part f is rotated to its alternative position the wall f<2> moves away from the abutment a<4> and the bolt can then be withdrawn. In a modification the part f is provided with an elongated finger grip, and in another modification the part f is operated by a key. Specification 236,734, [Class 44, Fastenings, Lock &c.], is referred to.
Patent GB-370108-A (GB)
Title: A new or improved jumping stick
IPC: A63B5/16
Filed: 1931-02-13
Abstract: 370,108. Jumping poles. JACKSON, A. E., 60, Knightstone Road, Weston-super- Mare. Feb. 13, 1931, No. 4547. [Class 132 (i).] A jumping stick comprises a pole 1 with or without a cross grip and having a foot rest supported by a hollow resilient walled air cushion 3. As shown in Fig. 1, the pole 1 has attached to it a foot-plate 2 supported by a hollow rubber ball 3. As shown in Fig. 2, the pole 1 has attached to it a plate 4 with or without a rubber cushion 5 between which and a foot-rest 2 is a resilient hollow buffer 3. Metal springs may be used in place of the cushion 5 and the whole may be mounted on rollers.
Patent GB-451947-A (GB)
Title: Improvements in or relating to cushions and the like upholstery
IPC: A47C27/08
Filed: 1935-02-13
Abstract: 451,947. Cushions and mattresses. BURTON, H. H., and JOHN BULL RUBBER CO., Ltd., Evington Valley Mills, Leicester. Feb. 13, 1935, No. 4586. [Class 52 (iv)] [See also Group V] A cushion or mattress squab consists of a series of channelled elements b of rubber of undulating shape in plan arranged in interfitting relation and interconnected at their bases b<1>. The squab is preferably formed with a border b<4> and may contain an air tube c which may protrude below the channels to take the initial load.
Patent GB-625942-A (GB)
Title: Improvements in and relating to electrical load measuring systems
IPC: H02P9/02
Filed: 1947-02-18
Abstract: 625,942. Current measurements. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 18, 1947, No. 4702. Convention date, Feb. 18, 1946. [Class 37]  A single current-measuring instrument is arranged to obtain a correct measurement of the load on power apparatus when this is operated under two or more different conditions. In the Diesel-electric driving system for a locomotive shown in Fig. 1, a Diesel engine 1 drives a D.C. generator 4 which supplies energy to similar D.C. series driving motors 5, 6, 7, 8. The pair of motors 5, 6 may be connected in series to the generator 4 by closing a switch 9 and opening switches 10, 11 or in parallel to the generator 4 by closing switches 10, 11 and opening switch 9. The motors 7, 8 may be similarly connected by means of switches 12, 13, 14. A shunt 15 has three line terminal connections 16, 17, 18 and instrument connections 20 connected to a millivoltmeter 19. When the motors 5, 6 are in the series or low speed connection, current from this pair of motors flows through the complete length of the shunt 15 between terminals 16, 18, whilst in the parallel or high-speed connection the current of the motor 6 flows through the complete shunt and that from the motor 5 through a selected length between the terminals 16, 17. With the motors in series for low-speed operation, the motors attain their full load before the generator, whilst with the motors in -parallel for high-speed operation the generator attains full load before the motors. The point 17 is so chosen that full load current on the motors during low-speed operation and full load current on the generator during high-speed operation produce the same reading on the instrument 19. For other loads.the instrument 19 correctly indicates motor loading for the low-speed connection and generator loading for the highspeed connection in terms of continuous full load current rating of motors and generator respectively. The instrument 19 may have a scale divided into different coloured portions 21, 22, 23 indicating respectively underload, full load, and overload. The motors may be arranged with another control step in which all four motors are in series, the terminal 17 in this case being midway between the terminals 16, 18. For an alternating current system, a transformer arranged as shown in Fig. 3 may be employed instead of a shunt, the terminals 16<SP>1</SP>, 17<SP>1</SP>, 18<SP>1</SP> being connected in place of the corresponding terminals 16, 17, 18 of the shunt in Fig. 1. The primary winding between the terminals 16<SP>1</SP>, 18<SP>1</SP> has twice as many turns as the primary winding between the terminals 16<SP>1</SP>, 17<SP>1</SP>.