baber/WOPTO huggingface dataset:
Patent GB-893113-A (GB)
Title: Improvements in or relating to electronic integrators and controllers
IPC: G05B11/50
Filed: 1959-02-12
Abstract: 893,113. Fluid-pressure servomotor-control systems. STEGHART, F. L. F. Feb. 4, 1960 [Feb. 12, 1959], No. 4949/59. Addition to 871,562. Class 135. [Also in Group XXXV] In an electrical system for automatically regulating temperature as in the parent Specification (see Group XXXV), the output of a D.C. electronic amplifier, instead of controlling an electric motor, is applied to a solenoid 301 which controls air flow from a source 308 through a nozzle 306. By virtue of a restriction 307 the pressure applied to the upper side of ganged diaphragms 321, 322 of a pneumatic amplifier 327 varies with the temperature in the controlled system and a double conical valve 313 controlling inlet and outlet ports of a compartment 312 is operated so that a corresponding amplified pressure variation is applied to a piston 324 operating a valve (not shown) to control the temperature. A bellows 316, also responsive to pressure in compartment 312, operates a potentiometer 40 the signal from which, as in the parent Specification, is differentiated electrically and fed back to the input of the D.C. amplifier to produce an integral component of control.
Patent GB-509006-A (GB)
Title: An improved cigarette paper
Filed: 1939-02-17
Abstract: 509,006. Cigarettes. ESCOTT, J. Feb. 17, 1939, No. 5107. [Class 130] A cigarette paper is provided with a film b of rubber solution along one edge and with a parallel film c on the reverse side, the two films being united by pressure when making a cigarette.
Patent GB-556757-A (GB)
Title: Improvements in or relating to generators of electric oscillations
IPC: H03L5/00
Filed: 1942-04-17
Abstract: 556,757. Valve generating circuits. STANDARD TELEPHONES & CABLES, Ltd., and LEVY, M. M. April 17, 1942, No. 5114. [Class 40 (v)] The amplitude of the waves generated by a variable frequency generator is stabilized by a thermionic rectifying valve which forms a load shunting the tuned circuit and is controlled from a detector-amplifier circuit. The Figure shows an arrangement of an oscillator Vo, associated with a tuned circuit LC which is shunted by a triode V2, the bias of which is controlled by the valve V1. The valve V1 is fed from a tapping on the potentiometer C3, C4 and the cathode, control and screen grids form a rectifying triode while a meter M in the cathode lead backed off by resistance R7 indicate the votlage generated. The controlling voltage is taken from the anode resistance R2 and may be amplified by an interposed direct current amplifying valve which if the valve V2 operates with grid current over part of the cycle may be of the cathode-follower type to reduce the impedance. Alternatively a delayed diode connected across the whole circuit may be used, Fig. 6 (not shown), for deriving the control voltage. The bias of the control valve V2 is adjusted by potentiometer R9 for maximum sensitivity.
Patent GB-1304614-A (GB)
IPC: H02K41/06
Filed: 1970-02-03
Abstract: 1304614 Toothed and friction gearing BENDIX CORP 3 Feb 1970 [3 Feb 1969] 5128/70 Heading F2Q [Also in Divisions H1 and H2] An epicyclic gearing arrangement comprises a fixed gear 14 secured to an outer casing 12 and engaged by a floating ring gear 26 which also engages an output gear (20), not shown, in line with the gear 14, rotation of the output gear being produced by causing the axis of the ring gear to follow an orbital path around the axis of the stationary and output gears, such movement being produced by electromagnets 34... 37 secured to the inside of casing 12 and energized sequentially by switches operated by the ring gear. The switches comprise a ring contact 54, Fig. 4, secured to one end face of the ring gear and a series of contact segments 62... 65 forming part of a ring (58) secured to casing 12. In the position shown, the ring contact 54 engages segments 63, 64 so that electromagnets 35, 36 are energized and produce a resultant force F on the ring gear which will rotate it in a counterclockwise direction until electromagnet 36 is deenergized and electromagnet 34 energized over segment 62 to produce a further increment of rotation. A further ring contact and set of contact segments may be provided at the other side of the ring gear, the two ring contacts being connected through separate switches to the same side of the supply to the electromagnets so that either ring contacts may be energized to produce clockwise or counterclockwise rotation. Frictional gearing may replace the toothed gearing shown.
Patent GB-865699-A (GB)
Title: Improvements in or relating to the recovery of plutonium
Inventor: KEEN NORMAN JAMES
IPC: C22B60/04
Filed: 1959-02-13
Abstract: 865,699. Recovery of plutonium. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Feb. 1, 1960 [Feb. 13, 1959], No. 5191/59. Class 39(4). Plutonium is recovered from a slag comprising the fluoride of a highly electropositve metal by dissolving the slag in a solution containing nitric acid and aluminium ions and then extracting the plutonium with an organic' liquid comprising tributyl phosphate. The slag may arise in the reduction of plutonium tetrafluoride by magnesium, calcium, barium, lithium, sodium, or potassium. Preferably the dissolving solution contains at least 1.5 gramions of aluminium per litre and is at least 3 molar in nitric acid. After treatment at for example 90‹-95‹C., the undissolved residue may be further extracted with concentrated nitric acid at 95‹C. The organic liquid may be a 20% solution of tributyl phosphate in kerosene. The tributyl phosphate extract is washed with aqueous nitric acid and then contacted with an aqueous solution of hydroxylamine nitrate to reduce the plutonium and return it to the aqueous phase; alternatively the plutonium may be precipitated as oxalate as described in Specification 834,531.
Patent GB-784719-A (GB)
Title: Improvements in or relating to the formation of pleats in textile fabrics
IPC: D06J1/00
Filed: 1955-02-22
Abstract: 784,719. Pleating fabrics. CROSLAND, P. F. Feb. 21, 1956 [Feb. 22, 1955], No. 5194/55. Drawings to Specification. Class 141. Radial pleats are formed in a substantially triangular piece of fabric by passing the fabric between two heated conical rollers provided with corresponding grooves and ridges which diminish in width and depth from the larger to the smaller end of each roller. For durable pleating, thermoplastic fabric may be used. Alternatively a cellulosic fabric may be impregnated with a solution containing thermosetting materials and dried prior to its passage between the pleating rollers, and then heated again to condense the thermosetting resin.
Patent GB-701077-A (GB)
Title: Improvements in or relating to seats particularly for motor vehicles
IPC: B60N2/20
Filed: 1952-02-28
Abstract: 701,077. Berths. LEWIS, J. R. March 2, 1953 [Feb. 28, 1952], No. -5220/52. Class 52(2) A vehicle seat in which the seat back can be pivoted forwardly to give access to a rear seat. The seat back is arranged to be pivoted rearwardly to bridge the space between the seating surfaces of a front and rear seat to form a berth, means being also provided normally to prevent the seat back being pivoted rearwardly. As shown the seat frame 2 is provided at each side with a cheek 1 provided with a slot 6 to acccommodate a trunnion pin 3 arranged on the seat back frame 4, 5. An abutment 7 is provided on the cheeks 1 so that the seat back can be pivoted forwardly but not rearwardly until the seat back is raised to clear the abutment 7 whereupon the seat back may be lowered rearwardly to rest on an abutment 9 carried by the front of the rear seat. A pin and hole 8 normally prevents accidental lifting of the seat back.
Patent GB-437863-A (GB)
Title: Improvements in water softening apparatus
IPC: C02F1/42
Filed: 1935-02-18
Abstract: 437,863. Softening water. MARSH, H. M., 49, Proctor Boulevard, Hamilton, Ontario, Canada. Feb. 18, 1935, No. 5231. [Class 46] In regenerating the zeolite bed of a water-softener the bed is first backwashed with fresh water, then salt solution is passed into the tank below the top of the tank but just above the normal level of the bed and water is drawn from the bottom of the tank by a water-actuated ejector so that the salt solution is drawn into the bed. Part of the salt solution may be reclaimed for use in a later regeneration operation. Hard water from a main 57 can be passed either to the bottom or the top of the softening-tank 50. The top of the tank is connected to a waste pipe 58 and the bottom of the tank to a soft water main 56. After back-washing, a valve 2 is opened and reclaimed brine stored in a tank 1 passes through a pipe 5 and a distributer 32 just above the top of the bed 64, the brine being drawn downward through the bed by hard water passing from the main 57 through an ejector 11 to a waste pipe 40. The suction side of the ejector is connected to the bottom of the tank 50 by a pipe 10. After passage of the desired amount of reclaimed brine from the tank 1, a measured amount of fresh solution is drawn from a tank 7 through a valve 3. The solution is forced out of the bed by admitting hard water at the top of the tank 50 and caused to flow up the pipe 10 which delivers it to a tank 27 having an outlet 28 to a funnel 43 leading to waste. Part of the solution passing up the pipe 10 is byepassed through a constant level tank 16 to a bucket 20 counterbalanced on a lever 22. The bucket is normally filled to the level of an overflow pipe 21 and when the specific gravity of the liquid rising through the pipe 10 increases sufficiently to cause the bucket to move downward and close the outlet 28 from the tank 27, the liquid rises in the tank 27 and overflowing a weir 41 is delivered to the tank 1. A portion of this solution may pass from the weir to a funnel 30<a> and through a pipe 30 to the tank 7. When the tank 1 is full, a float 42 therein opens an outlet in the tank 16 so that solution ceases to flow to the bucket 20 and the bucket is discharged by a siphon 33 and returns to its normal position and the outlet 28 is opened. Specification 435,589 is referred to.
Patent GB-770576-A (GB)
Title: Materials having a coated polyethylene surface
IPC: C08J7/04
Filed: 1955-02-22
Abstract: Materials having a polyethylene surface, e.g. films, sheets, coatings, or moulded bodies of polyethylene, have such surface rendered printing ink-receptive by heating thereon a coating, applied all over or to selected areas, comprising chlorosulphonated polyethylene admixed with cyclized rubber.  The mixture is appied in solution in an aromatic solvent, e.g. benzene toluens, or xylene, containing a concentration of chlorosulphonated polyethylene and cyclized rubber each of 0.5-2 per cent.  After the coating composition has been applied to give a solids deposit of 0.25-2 lbs./ream; the coated film is heated to 80-40 DEG C. for 2-5 minutes. The composition should contains 20-80 per cent cyclized rubber based on the chlorosulphonated polyethylene, and may contain up to 25 per cent of vegetable, paraffin, or chlorinated paraffin wax, and up to 8 per cent accelerator, e.g. dipentamethylene thiouram tetrasulphide, 2-mercaptobenzthiazole, and the condensation product of butyraldehyde and aniline.  The composition may also include 0.5-2 per cent, based on the cyclized rubber, of an antioxidant comprising p-benzyl aminophenol, N:N:N1:N1-tetramethyl 4:41-diamino diphenyl methane, 4:41-diamino diphenyl methane 2:4-diamino diphenylamine, or tetramethyl diamino bendhydrol.  Drying oil vehicle printing ink may be applied to the coated film in conventional manner.
Patent GB-933745-A (GB)
Title: Improvements in or relating to electrical switch mechanisms and potentiometers or variable resistors including them
Inventor: BROWN JOHN KENNETH
IPC: H01C10/36
Filed: 1962-02-12
Abstract: 933,745. Variable resistors. A.B. METAL PRODUCTS Ltd. Feb. 12, 1962, No. 5341/62. Class 37. [Also in Group XXXVII] A combined variable resistor and switch unit is contained in a casing 13 with a partition 12 separating the switch mechanism (see Group XXXVII) from the resistor. The resistive unit consists of a generally circular base 35, coated with a resistive compound for the greater part of the track, and a contact wiper 41, the non- wiping parts of which are held spaced by a helical conducting spring 42 from a centre terminal 38 connected to a ring 39 around a spindle 11. Rotation of the wiping member 41 is effected through flats co-operating with mating flats on the spindle 11, which flats are extended also to mate with a knob 17. A plate 16 closing one end of the casing 13 acts as a mounting plate for the unit (Fig. 4, not shown).
Patent GB-396832-A (GB)
Title: Improved bedstead jointing means
IPC: F16B12/56
Filed: 1932-02-23
Abstract: 396,832. Bedstead joints. MUNRO, J. A., 493, Elizabeth Street, Melbourne, Victoria, Australia. Feb. 23, 1932, No. 5348. [Class 52 (ii).] In a bedstead joint, of the kind comprising a bolt 5 passing through coinciding bores 8 in the members 1, 2 and engaging a nut 6 forced into a hole 7 in the member 2, the nut consists of a short metal bar of less crosssectional area than that of the hole 7 into which the bar is forced.
Patent GB-535987-A (GB)
Title: Improvements in and relating to stipplers for paint work
IPC: B05C17/02
Filed: 1940-03-23
Abstract: 535,987. Stipplers. PADGETT, G. M. March 23, 1940, No. 5364. [Class 19] A stippler for paint work comprises a number of rubber or other flexible discs 5, Fig. 1, spaced apart in grooves in a roller 1, which is rotatably mounted in a frame 2 provided with a handle 3. These discs may be provided with holes 6, Fig. 2, from some or all of which radial cuts 7, 8 may extend to the edges of the discs. A bracket 9 may be formed on the frame 2 to hold a paint brush 9.
Patent GB-220668-A (GB)
Title: A process for the production of new organic arsenic compounds
IPC: C07F9/74
Filed: 1923-02-23
Abstract: Aromatic aldehydo and keto-arsinic acids which have therapeutic value are prepared by treating with an arsenite the diazo compounds from monoamido or polyamido derivatives of aromatic aldehydes or ketones or mixed aromatic-aliphatic ketones; the reaction can be carried out in acid, neutral or alkaline solution. The products have the general formula R1.CO.R2.AsO3H2 where R1 = hydrogen, an aromatic radicle, or an aliphatic radicle which may be substituted for example, by another aromatic nucleus or halogen or hydroxyl, and R2 = any aromatic carbocyclic radicle. According to examples arsinic acids are obtained from the diazo compounds of the following amines:-nitro-oxy-aminoacetophenone, p-aminoacetophenone, p-aminobenzophenone, diaminobenzophenone, p-aminobenzaldehyde, 4-amino - 31 - oxybenzophenone, 4-acetylamino-31-aminobenzophenone, o -phthalimido-p-aminoacetophenone, p-aminophenylbenzylketone, p-aminopropiophenone, nitro-p-aminobenzaldehyde: the phenylhydrazone of benzaldehyde-p-arsinic acid is described. Nitro-oxyaminoacetophenone is obtained by hydrolyzing nitrated 1-oxy-4-acetylaminoacetophenone with hydrochloric acid. 4-Acetylamino-31-aminobenzophenone is obtained by nitrating 4-acetylaminobenzophenone and reducing: by hydrolysis it, yields 4 : 31-diaminobenzophenone, and on replacing NH2 by OH and hydrolyzing yields 4-amino-31-oxybenzophenone.
Patent GB-713692-A (GB)
Title: Reaction apparatus for continuous operation
Inventor: MAGNANT DOMINIQUE
IPC: B01J19/18
Filed: 1952-02-29
Abstract: 713,692. Mixing appliances ; centrifugal machines. HOUILLERES DU BASSIN DU NORD ET DU PAS DE-CALAIS. Feb. 29, 1952. No. 5382/52. Classes 23 and 86 A continuous reaction apparatus for intimately contacting several reagents comprises twocoaxial vessels 1, 2, Fig. 1, in communication with one another through an overflow arrangement at the upper end and through a discharge pump at the lower end, the several reagents being introduced separately into the bottom of the central vessel 1, as by tubes 13, 14, the reagents being discharged through a second overflow arrangement into a pipe 16 at a level above that of the overflow arrangement through which the vessels 1 and 2 communicate with each other. The discharge pump comprises a fixed disc 5, Fig. 3, having an axial opening 7 and carrying agitating vanes 8 upon its lower surface, and a rotatable disc 9 having similar vanes 12 on its upper surface disposed to permit free relative movement to the agitating vanes 8. The disc 5 is located in an opening in the bottom of the vessel 1 and the disc 9 is connected by a shaft 10 to an electric motor 11. The annular chamber 4 has vertical partitions 15 to prevent gyration of the materials. The apparatus is surrounded by a jacket 17 for the circulation of cooling or heating liquid and is closed by a lid 3.
Patent GB-229495-A (GB)
Title: Improvements in tea pots, coffee pots and the like
IPC: A47G19/14
Filed: 1924-03-03
Abstract: 229,495. Abram, E. W. March 3, 1924. Addition to 188,503. Pots and jugs.-The invention relates to a modified construction designed to strengthen the strainer " shutter " described in the parent Specification. In place of a straight slot or slots, one or more curved slots a are formed in the shutter, and shallow grooves or depressions b, c may also be provided to deflect tea laaves &c. away from the slots. The shutter may, as before, be formed integral with the lid of the pot.
Patent GB-693937-A (GB)
Title: Improvements in the manufacture of electric cables and in apparatus therefor
Inventor: MCCLEERY JAMES
IPC: H01B7/16
Filed: 1951-03-07
Abstract: 693,937. Cables. GLOVER & CO., Ltd., W. T. March 6, 1952 [March 7, 1951], No. 5540/51. Class 36. [Also in Group XXVI] Apparatus for making a sheathed insulated conductor having powdered or granular insulation uniformly compressed theraround comprises means for assembling the conductor within a tube, a die through which an end of the tube projects, means for feeding the insulant to a place in the tube near the die, means for pressing the insulant towards the die and means for drawing the tube and its contents through the die. The apparatus may comprise a vertically reciprocable hollow ram 1 having an enlarged head 2 at its lower end provided with longitudinal grooves to permit the flow of insulant to the lower side of the head. The ram reciprocates within a metal tube 5 which is drawn through a die 6 which reduces the diameter of the tube. The upper end of the ram is connected to a piston rod 9 provided with a piston 10 working in a pneumatic cylinder 11, air being supplied under pressure to the cylinder on opposite sides of the piston alternately (see Group XXVI). A conductor 59 is introduced through the head 2 to occupy the centre part of the hollow ram 1, with one end projecting beyond the head 2. The lower end of tube 5 is then swaged down to enable it to pass through die 6, and a plug 60 driven into this end of the tube and secured to the conductor 59 by grub screws. The end of the tube is then passed through the die and clamped in jaws 53 to which a hauling bar 55 is attached. The insulating powder is fed from hopper 8 into the tube 5, and some of it passes through the grooves in head 2. The ram is caused to reciprocate and the tube 5 and conductor 59 are drawn through die 6 by a windlass 56. The insulant flows downwards to below the head 2 on the upward stroke of the ram, and is compacted on the downward stroke. The reduction of the tube 5 compresses the insulant uniformly around conductor 59.
Patent GB-820517-A (GB)
Title: Process of producing glutaric acid compounds
IPC: C07C51/34
Filed: 1957-02-19
Abstract: a -Hydroxyglutaric acid, a -hydroxyglutaric acid lactone and/or a -haloglutaric acid or alkyl-substituted analogues thereof are prepared by oxidizing a 3-halocyclopentene with ozone, preferably in a solvent and decomposing the ozone reaction product with an oxidizing agent, e.g. by passing air, oxygen or ozone or mixtures through an aqueous solution, by cupric oxide or by hydrogen peroxide at elevated temperature, preferably in the presence of acid. Ozonization is best effected at or below room temperature, e.g. down to - 70 DEG  C.  The products may be converted to glutamic acid by reaction with ammonia at elevated temperature, e.g. 200-350 DEG  C. or higher.  The ammonia may be aqueous or anhydrous and ammonium carbonate may be present.  Inorganic ions are preferably removed before the reaction with ammonia. 3-Halocyclopentene may be prepared by heating dicyclopentadiene above 170 DEG  C. and reacting the resulting cyclopentadiene with gaseous hydrogen halide below 0 DEG  C.
Patent GB-880145-A (GB)
Title: Improvements in apparatus for building pneumatic tyres
Inventor: TREVASKIS HENRY WILLIAM
IPC: B29D30/24
Filed: 1957-02-20
Abstract: 880,145. Expansible tyre building drums. DUNLOP RUBBER CO. Ltd. Feb. 12, 1958 [Feb. 20, 1957], No. 5684/57. Class 144 (1). An expansible tyre building drum comprises a resilient sleeve 1 with a cylindrical outer tyre building surface and an inner surface 1d shaped to co-operate with the corresponding surface 6a of a wedge member 6 which is movable axially of the sleeve to cause uniform variation of the external diameter of the sleeve. As shown, the sleeve is centred on a support shaft 2 by radial pegs 3 projecting from the shaft 2 to engage slidably in recesses 4 in the inner surface of the sleeve. The sleeve inner surface tapers inwardly from each end 1a to co-operate with a pair of wedge members 6 which are slidably supported on the shaft 2 and are formed with end recesses defining cylinder chambers 6b. Each cylinder 6b co-operates with a piston 7 fixed to the shaft 2 and is fed with pressure fluid via pipes 8 to effect the axially inward expanding movement of the wedge members 6. Such movement is limited by abutment with the pistons 7 of adjustable stops 11 screwed into the ends of the wedge members. Retraction of the wedge members 6 from the drum expanded position, Fig. 2, to the collapsed position, Fig. 1, is effected either by pressure fluid introduced between the wedges 6 via pipe 9, or by springs, or by forming the cylinders 6b to be double acting. In an alternative arrangement for centring the sleeve on the shaft 2, the wedge members may have shoulders to abut the sleeve ends in the expanded position of the drum. Specifications 808,341 and 872,038 are referred to.
Patent GB-228371-A (GB)
Title: Improvements in or relating to carburetters
IPC: F02M9/06
Filed: 1924-03-06
Abstract: 228,371. Brown & Barlow, Ltd., and Brown, C. March 6, 1924. Spray carburettors.- The pilot nozzle f receives a mixture of air and fuel from a passage h which communicates through a conduit g with the main fuel passage d<1> and through an aperture k with the atmosphere. The passage h has at each end a screwed valve independently adjustable. The valve l, Fig. 2, which controls the air is held against rotation by a spring m, and the valve i which controls the fuel has radial and axial bores j<1>, j. The main nozzle is shown at e, the throttle valve at a and the air control valve at c.
Patent GB-983979-A (GB)
Title: Improved cantilever storage rack
IPC: A47B57/50
Filed: 1964-02-11
Abstract: 983,979. Storage racks. PALMER SHILE CO. Feb. 11, 1964 [Nov. 18, 1963], No. 5746/64. Headings A4B and A4H. A cantilever storage rack comprises columns 13 and elongated load supporting arms 14 which are attached to the columns by U-shaped brackets 32, secured to the inner ends of the arms 14, and embracing the side surfaces of the columns so that pins 36 may be inserted through pairs of aligned apertures 33 and 34 in the columns 13 and brackets 32 respectively, at least one of the pairs of apertures 33 or 34 having inclined edges whereby a load applied on the arms 14 will cause the brackets 32 to be wedged against the columns 13. All of the apertures 33 and 34 are shown to be inclined and the apertures 34 to be of trapezoidal shape. Several columns may be interconnected by members 25, 26 and the columns may be supported on bases 12.