baber/WOPTO huggingface dataset:
Patent GB-535996-A (GB)
Title: Improved gas proof drinking water and liquid container for air liners, air raid shelters, mines, refuge rooms
IPC: B64D47/00
Filed: 1940-05-20
Abstract: 535,996. Liquid-containing vessels. BURTON, J. L. May 20, 1940, No. 8922. [Class 21] A steel or like container for drinking water &c. comprises a body portion 2, bottom and top ends 3, 4, secured thereto by rolling the margins together with the ends of the body around hoops 21 and soldering the joints at 24, the ends being fitted with bungs 16 provided with gas-proof washers 18 and fitting into bosses 19, and a tap 6 provided with gas-proof washers 8, 9, being fitted in the lower part of the body portion.
Patent GB-1533389-A (GB)
Title: Methods and apparatus for battery charging
IPC: H02J7/00
Filed: 1976-02-27
Abstract: 1533389 Charging batteries WESTING- HOUSE BRAKE & SIGNAL CO Ltd 27 Feb 1976 [5 March 1975] 9040/75 Heading H2H A method of charging a battery comprises the steps of supplying a high charging current to the battery until the battery attains its gassing voltage, interrupting charging for a relatively short period of time, re-applying a high charging current for a relatively long period of time and repeating the steps of interruption and reapplication of the charging current until the open circuit battery voltage does not fall below a predetermined value during an interruption. The apparatus for carrying out the method includes a step-down transformer connected to a mains supply via a variable choke and a second choke. The winding of the variable choke is tapped and the connection is selected by a first switch, a second switch is connected in parallel with the second choke and a third switch connects the transformer to the mains supply. The switches are controlled by a timer and a controller. The transformer secondary is connected to a full wave diode bridge rectifier, the output of which is connected to a voltage sensor and the battery to be charged. Initially, assuming the battery voltage to be below its gassing voltage, the controller causes the first switch to select the low impedance condition of the variable choke, the second switch short circuits the second choke and the third switch is closed to supply a high charging current. When the gassing voltage is reached, the controller disconnects the transformer from the mains supply and a timer starts to time a twenty second period. At the end of this period, the transformer is reconnected to the mains supply, the variable choke is switched to its higher impedance condition and the second choke remains short circuited. A high charging current then flows for a timed ten minute period before the mains supply is again interrupted for twenty seconds. During this interruption the voltage sensor measures the battery voltage and provided it does not fall below the predetermined value, the second switch is opened and a low charging current is supplied to the battery.
Patent GB-1046483-A (GB)
Title: Improvements in or relating to textile knitting machines
Inventor: CARRINGTON ARTHUR HUMPHREYS
IPC: D04B35/10
Filed: 1963-03-09
Abstract: 1,046,483. Knitting-machines. A.H. CARRINGTON and F. C. F. MONK. June 10, 1963 [March 9, 1962], No. 9087/62. Heading D1C. A fault detector in a circular knitting machine comprises a source of light and two photo-electric cells so arranged that the amount of light received at each is compared in such a way that one photo cell detects holes in the fabric and the other photocell detects slubs in the fabric. Light emitted from a bulb 21 is totally internally reflected inside a transparent street of material in the form of a disc 19 and passes through the fabric which completely surrounds the periphery of the disc in a tube form. After passing through the fabric the light is received by a photo-cell in a scanner 6 on an arm 5. Two scanners are used and positioned diametrically opposite each other and are so arranged electrically that one will detect holes in the fabric and the other thicker pieces (e.g. slubs). The fabric is formed on a rotary cylinder machine and the scanners are so arranged that all parts of the fabric pass in front of them as the fabric turns. If desired the upper and lower faces of the disc 19 may be convered with foil to aid reflection and a calibrating disc may be incorporated to facilitate different types or different colours of yarns. The photo-cells are connected by means of a "flip-flop" circuit to a relay which may operate warning lights, stop mechanisms, or may insert marking threads where the faults occur. When the latter is done an electromagnet counter may be used to count the number of faults occuring. In the event of failure of the light source the machine is stopped.
Patent GB-1442977-A (GB)
Title: Hole-drilling and grooving tool
IPC: B28D1/04
Filed: 1975-03-05
Abstract: 1442977 Abrasive tools INST SVERKHTVERDYKH MATERIALOV AKAD NAUK UKRAIN SSR 5 March 1975 9093/75 Heading B3D A hole drilling and grooving tool comprises a shank 1, and a cutting tip 2 made of abrasivecontaining material and provided with a longitudinal slot 3 holding an elongate channel member 4 made of material whose abrasive resistance is lower and whose bending strength is higher than those of the cutting tip material, the surface profile of the channel member being identical to that of the slot, and a recess 6 in the cutting tip end surface located so that the abrasive particles on the cutting tip end surface are spaced from the axis of rotation of the tool. The cutting tip 2 may be of diamond grains in a metal binder, and the member 4 to be of metal binder as used for binding diamond grain, bronze and steel. The slot 3 is V-shaped and the member 4 is similarly V-shaped, the depth h of its channel being at least of the diameter D of the tool when the tool is circular or the major diameter when the tool is elliptical (Fig. 3, not shown). The recess 6 has a curvilinear bottom 8 and is arranged so that abrasive particles on the end face 5 are a distance a from the axis of the tool. During machining, the groove in the member 4 permits the supply of coolant to the end surface 5 and the removal of sludge, and the surface 8 of the recess 6 abrades or breaks a core formed during machining.
Patent GB-251952-A (GB)
IPC: B23F9/10
Filed: 1926-04-07
Abstract: 251,952. Gleason Works, (Assignees of Wildhaber. B.). May 11, 1925, [Convention date]. Gear - cutting; milling- cutters.-Relates to toothed gearing of the kind comprising conical gears the axes of which are perpendicular or inclined but do not intersect and which, in the limit, becomes crown wheel and pinion gearing. The larger wheel 10, Fig. 1, or 20, Fig. 8, has curved teeth preferably formed by a rotary cutter 21 with its axis 23 inclined to and offset from the gear axis 39 or 31. The other wheel or pinion 12, Fig. 1, or 29, Fig. 11, may be cut by a rotating tool 27, representing a tooth of the first wheel, moving across the face of the pinion blank while the blank is rotated on its axis 30 and revolves about the offset axis 31 of the wheel, maintaining the same relative positions as do the finished wheels when in working engagement. A tool 25, Fig. 10, may be used for cutting the gear 20, in which case the blank is rotated during cutting and all the teeth are cut simultaneously to a modified roulette form. A similar but conjugate tool may cut the pinion blank 29. Reciprocating tools may be used for the gear cutting. The pinion teeth are so formed as to match the gear teeth along the whole length of the tooth spaces, and by suitably arranging the curvature of the teeth of the wheel and the proportions of the other parts, the teeth of the pinion may be caused to approximate in form to logarithmic spirals. Reference has been directed by the Comptroller to Specification 11189/14.
Patent GB-435560-A (GB)
Title: Improvements in or relating to the treatment of waste industrial gases
IPC: B01D53/50
Filed: 1934-03-23
Abstract: Detrimental oxides of sulphur are removed from the effluent gases of boiler and like power plants by bringing the hot effluent gases, without previous moistening, at a temperature of about 400--625 DEG C., and at substantially atmospheric pressure, directly into contact with dry solid oxide, hydroxide or carbonate of calcium.  Catalysts, such as iron oxide may be mixed with the calcium compounds.  In conducting the process, the gases on their way to the stack may be passed through a perforated casing containing the solid calcium compounds, say in lump form.  This casing may have a top portion formed as a hanging hopper and the lower end may be provided with a discharge valve.  Alternatively, the powdered calcium compounds may be continuously distributed in the path of the gases, the reaction product being continuously removed.  The gas stream may be subsequently treated for the removal of dust, say by means of an electrical gas cleaner or cyclone separators, prior to passing into the stack.
Patent GB-1536981-A (GB)
Title: Apparatus for dumping and collecting corrosive substances from automotive batteries
IPC: H01M10/42
Filed: 1977-03-03
Abstract: 1536981 Dumping acid from batteries GENERAL BATTERY CORP 3 March 1977 [22 March 1976] 09248/77 Heading H1B Acid is emptied from batteries 204 by positioning them on a roller conveyer 122 in drum 10, gripping them by pneumatic clamps 74, and then rotating the drum by pneumatic tyres 30. PTFE baffles 100, 102 form a sealed chamber to keep the acid away from, e.g. the conveyer gearing 126, 128, and the air lines. The drum is tilted to allow acid to flow from a spout 208 at one end of the drum. Brackets on the drum act as stops and shake the batteries when they engage the tyres.
Patent GB-573458-A (GB)
Title: Improvements in or relating to magazines for firearms
IPC: F41A9/68
Filed: 1942-08-14
Abstract: 573,458. Cartridge magazines. VESELY, J. Aug. 14, 1942, No. 9254/44. Divided out of 573,435. [Class 119] A cartridge magazine for automatic firearms comprises two or more compartments, such as the two compartments 7, 8 arranged one behind the other, the compartments being each provided with spring-urged feeders 9, 14, and the feeder of one or more of the compartments having a lateral projection which protrudes through a corresponding slot 24 in one longi- 'tudinal wall of the magazine casing. The magazine shown is applied to the firearm described in Specification 573,435 with its upper portion fitting into a housing 4 depending from the gun body 1. The slot 24 is formed in the forward compartment 7, and the projection 23 of the feeder 9 is adapted to actuate the cartridge-retaining mechanism housed in the gun body when it reaches its uppermost position. Inturned lips are formed on the upper end of each side wall of the magazine to prevent the cartridges being discharged transversely of their axis, and the rear upper portion of one wall is inwardly inclined to cause the double row of cartridges in the rear compartment to converge into a single row as they approach the top of the magazine. The spring 10 of the compartment 7 carries a plate 11 having a protuberance 13 which serves to hold the bottom removable cover-plate 12 in its closed position. In a modification the magazine has three compartments, of which the front and middle ones are similar to the compartment 7. Specification 573,429 also is referred to.
Patent GB-513065-A (GB)
Title: Improvements in or relating to machines for packaging powder or granular material
IPC: B65B43/34
Filed: 1938-03-26
Abstract: 513,065. Packeting granular and pulverulent material. ROSE, A. G., and ROSE BROS. (GAINSBOROUGH), Ltd. March 26, 1938, No. 9299. [Class 94 (i)] A machine for filling flat bags with powder Dr granular material has means for transferring a bag from a magazine to the periphery of an intermittently-rotating carrier wheel which is provided with grippers for holding the bag at or near its lower edge, and a filling-funnel which decends into the bag and deposits the powder therein. The bags are stacked in a magazine 1, Fig. 2, with their closing flaps open. The foremost bag is engaged by a flat blade 2 that descends into the bag and then swings it horizontally to a position in front of another gripper 57, Fig. 3, by which it is transferred to the surface of a polygonal carrier wheel 4. The side of the bag with the closing flap rests against the carrier, and the bottom of the bag is clamped by grippers 6. The carrier is rotated step-bystep by a Geneva wheel 99, and the movement carries the bag in front of a reciprocating feeler 79, Fig. 2. If no bag is in position on the carrier, the feeler enters an opening 95 and disengages a clutch 82 to stop the feed of the powder. The bag is next carried beneath a hopper 21 from which a charge of powder is fed, by way of a funnel 20, by any suitable means such as that described in Specification 483,162, [Group XVIII]. The funnel 20 descends into and opens the bag, and in its movement reaches nearly to the bottom of the bag to prevent the entering material from clogging. Continued movement of the carrier conveys the filled bag to known devices for gumming, folding, and pressing the flaps.
Patent GB-609951-A (GB)
Title: Improvements in weather excluders for doors and windows
IPC: E06B7/232
Filed: 1946-03-26
Abstract: 609,951. Draught excluders. HJORTSO, A. P. March 26, 1946, No. 9330. [Class 20(iii)] A draught excluder for a hinged door or window comprises a V- or U-shaped metal strip 1 projecting from the movable or stationary frame to engage one or both sides of a groove 6 formed in the stationary or movable frame with a resilient pressure.
Patent GB-127959-A (GB)
Title: Improvements in or relating to Projectiles for Guns or other Propelling Devices.
Inventor: BURROWS REGINALD WILLIAM
IPC: F42B10/18
Filed: 1918-06-06
Abstract: 127,959. Burrows, R. W. June 6, 1918. Projectiles; projectile fuses.-Relates to projectiles of the kind having pivoted arms which open cut during flight and are adapted to operate the firing-means for the explosive charge in the projectile. According to the invention, the arms are carried by a sliding member connected to a spring which moves it forward away from the operative position when the arms are extended, but allows it to be forced back with the arms, on impact, to explode the shell. In the construction shown, the body A of the shell has three longitudinal slots which accommodate arms B having notched edges. These arms are pivoted to a block D which is normally held in the position shown, against the action of a tension spring E, by a rod F screwed into the block. The forward end of the rod carries, within the shell-nose, wind-vanes F<4>. A firing-pin C is held as shown, by cams B<2> on the inner ends of the arms B. Before the shell is discharged, a plug G<2>, closing an aperture in the nose, is removed, so that air can rush in during the flight of the shell, and, by acting on the vanes F<4>, screw the rod F free* from the block D. The spring E then advances the block and thereby causes the arms B to be extended, as shown in Fig. 2. The pin C is at the same time freed from the arms. When the arms strike an obstacle, they are forced back, together with the part D, and drive the firing-pin C into a percussion cap A<3>, which fires the explosive charge A<2> of the shell. This charge may be omitted, or an alumino-thermic charge may be provided.
Patent GB-552316-A (GB)
Title: Improvements in or relating to the production of pantothenic acid or intermediate products
IPC: B01D21/01
Filed: 1941-07-25
Abstract: 552,316. Panthothenic acid. NATIONAL OIL PRODUCTS CO. July 25, 1941, No. 9443. Convention date, July 30, 1940. [Class 2 (iii)] Panthothenic acid is prepared by treating α: γ - dihydroxy - # # - dimethyl butyric acid or its lactone with a base, acylating the salt thus formed with an aliphatic anhydride, halogenating the acylated product and condensing the halogenated product with an alkyl ester of # - alanine, and saponifying the condensation product. The preferred aliphatic anhydride in the above process is acetic anhydride. The base used may be sodium, potassium barium, or calcium hydroxide or an alkali carbonate. The halogenation is preferably carried out by means of thionyl chloride, but phosphorous pentachloride may also be used. The alkyl ester of # - alanine is preferably the methyl, ethyl or propyl ester, and the condensation should be carried out in the presence of an acid binding agent such as pyridine. It is necessary that the final saponification should be carried out by a substantially anhydrous reagent such as sodium hydroxide in absolute ethanol on the condensation product will not tolerate more than 2 per cent. of water in the reagent.
Patent GB-884515-A (GB)
Title: Washing machine with at least two horizontal drums
IPC: D06F21/04
Filed: 1958-03-25
Abstract: 884,515. Washing machines. ROTHENBERGER, J. March 25, 1958 [March 26, 1957], No. 9460/58. Class 138 (2). The machine has one fixed outer container 7, at least two rotating, perforated drums 2, 3, with a common horizontal axle 1, continuous, or intermittent fresh water supply 4 into the outer container, an open overflow 5 for the drainage of dirty liquid and a separating wall 8. A pipe-line 9, Fig. 3 (not shown), including a valve, may be used below the wall 8, and act as a controlled by-pass.
Patent GB-855240-A (GB)
Title: Improvements in method of curing rubbery fluoroelastomers
IPC: C08F8/00
Filed: 1959-03-19
Abstract: Rubbery copolymers of vinylidene fluoride with either hexafluoropropylene or chlorotrifluoroethylene are cured by subjecting them to an atmosphere of air-ammonia (preferably containing 4-33 vol. per cent ammonia), at a pressure above atmospheric and a temperature of 150350 DEG F. in the presence of a known amine curing agent such as triethylene tetramine, tetraethylene pentamine, triethyltrimethylene triamine or hexamethylene diamine (the carbamate of the latter is used in the examples).  It is stated that the cured copolymer is useful for lining tanks used for storing, transporting or processing solvents and other chemicals, such as fuel cells (e.g. in aircraft) for gasoline.  Reference has been directed by the Comptroller to Specifications 755,788 and 772,522.
Patent GB-935595-A (GB)
Title: New anthraquinone vat dyestuffs and their manufacture and use
IPC: C09B3/38
Filed: 1961-03-15
Abstract: The invention comprises water-insoluble vat dyestuffs of the formula:- <FORM:0935595/IV(a)/1> wherein one X is the residue of a monoaminoanthraquinone which may contain fused on carbocyclic or heterocyclic rings and which is free from sulphonic acid and carboxylic acid groups and which is bound through the -NH-bridge to the pyrimidine ring, two X's are amino, alkylamino, hydroxyalkylamino, alkoxyalkylamino, cycloalkylamino or phenylamino groups and the fourth X is one of these amino groups or is hydrogen, alkyl or nitro.  The dyes are made by condensing an appropriate monoaminoanthraquinone with a pyrimidine of the formula:- <FORM:0935595/IV(a)/2> in which at least three Y's are halogen and the fourth Y is hydrogen, halogen, nitro or alkyl, and every halogen atom remaining attached to the pyrimidine ring is exchanged for an amino, alkylamino, hydroxyalkylamino, alkoxyalkylamino, cycloalkylamino or phenylamino group by reaction with ammonia or a suitable amine.  Examples are given.  The dyes dye and print natural or regenerated cellulose textile materials by conventional vat dyeing or printing methods.
Patent GB-780475-A (GB)
Title: Improvements in or relating to hydraulic pit props
IPC: B65H63/06
Filed: 1953-04-08
Abstract: 780,475. Hydraulic pit-props. EISENWERK WANHEIM GES. April 8, 1953 [April 8, 1952; April 25, 1952]. No. 9564/53. Glass 20(2) [Also in Group XXIX] In a telescopic hydraulic pit prop having a part 2 sliding on a part 1 the prop pressure chamber x and reservoir y are connected by a passage 7 in which slides a piston 13 having a sealing ring 8 which allows fluid to flow one way only i.e. from the reservoir to the pressure chamber when the prop is being extended. The piston 13 may be forced down by pins 11, 12 until the sealing ring 8 is out of the passage 7 for collapsing or extending the prop. The pin 11 initially engages and opens a pilot valve 5 for connecting the reservoir and pressure chamber. Excess pressure in the chamber x acts on a seat 10 mounted on the piston 13 and moves it against a spring 22 until the valve 5 engages the pin 11 against an abutment 24 and is opened to release the excess pressure to the reservoir. In a modification the sealing ring is fixed in the passage and the piston 13 is adapted to slide through it.
Patent GB-769542-A (GB)
Title: Improvements in or relating to automatic frequency control systems
Inventor: WRIGHT PETER MAURICE
IPC: H03L7/04
Filed: 1953-04-08
Abstract: 769,542. Automatic frequency control systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and BUCKINGHAM, J. July 6, 1954 [April 8, 1953], No. 9575/53. Class 38(4). [Also in Group XL (c)] A hybrid junction, e.g. a magic T or rat-race, of four transmission lines or waveguides, is used for controlling the frequency of an oscillator 1 connected to one line 2, two other lines 3, 5 being respectively a short-circuited wave reflecting line 3 and a wave reflecting line 5 of longer electrical length than line 3, and the fourth line 4 which can receive outputs only from the lines 3, 5 containing an amplitude detector 7. Modulation from a source 9 applied to a balanced modulator 8 connected to one reflecting line, e.g. line 5, produces a suppressed carrier modulated wave reflected back to the junction 6 where it combines with unmodulated carrier reflected back from the line 3, so that the output, at modulation frequency, of the detector 7, depends in amplitude and phase sense on any departure of the suppressed carrier wave and unmodulated carrier from normal phase quadrature at the junction 6, and this in turn depends on frequency drift of oscillator 1 due to the difference in electrical lengths of lines 3, 5. The output of detector 7 is then detected in a phase-sensitive rectifier 13, relative to the phase and frequency of modulating oscillator 9 and varies the conductivity of a valve 14 in series with the H.T. supply to the oscillator 1, e.g. a magnetron, to control the frequency. The crystal of modulator 8 is impedance matched, to the line 5 to act as a balanced modulator. Lines 3, 5 may both terminate in adjustable tuning pistons 10, 15. The guide 3 may also include a variable phase shifter 11, e.g. a line stretcher formed by a variably magnetized ferrite piece in the waveguide, or a rotating eccentric dielectric disc variable projecting into the guide, or a variably ionisable gas discharge tube, or single sideband modulator, to modulate from a modulation input 16 the phase of the reflected wave in guide 3 and so, via the control loop, producing frequency modulation of the oscillator 1 in a frequency-modulated radar system according to a cyclic predetermined law.
Patent GB-668853-A (GB)
Title: Separating alpha and beta methyl naphthalene by azeotropic distillation
IPC: C07C7/06
Filed: 1949-04-08
Abstract: - and b -methyl naphthalenes are at least partially separated from one another by submitting the mixture to fractional azeotropic distillation with ethylene glycol, diethylene glycol, or a homologue thereof.  The process may be applied to tar oils boiling within the range 235-248 DEG C.  In an example a tar-oil fraction of boiling range 239.5-248 DEG C (6,000 parts) which had been freed from phenols, bases and unsaturated compounds, was fractionated with ethylene glycol (1,900 parts), using a column equivalent to 10 to 15 theoretical plates.  The ethylene glycol layer which separated from the distillate was returned to the top of the column together with some of the hydrocarbon distillate. The first fraction consisted mainly of naphthalene and paraffins; a distillate containing over 80 per cent b -methyl naphthalene came over next; then fractions rich in -methyl naphthalene; and finally diphenyl.  The fractions contained a small percentage of glycol which can be removed either by washing with water or by distillation.