baber/WOPTO huggingface dataset:
Patent GB-579235-A (GB)
Title: Improvements in or relating to the interpolymerisation of 1,3-butadienes and methyl methacrylate
IPC: C08F36/04
Filed: 1942-09-18
Abstract: A 1,3-butadiene and methyl methacrylate are emulsified in an aqueous medium containing a dissolved salt of perdisulphuric acid and a dispersing agent consisting of an alkali metal alkyl sulphate or sulphonate containing 12 to 18 carbon atoms and are polymerized in a closed vessel containing a substantially oxygen-free gas space at a temperature between the freezing point of the emulsion and about 80 DEG  C.  The term 1,3-butadiene includes 2-methyl, 1,3-butadiene; and 2,3-dimethyl 1,3-butadiene.  As the proportion of butadiene in the mixture increases, the toughness, flexibility, softness and similarity to rubber of the products increase.  A suitable perdi - sulphate is the potassium, sodium or ammonium salt.  It is employed in an amount varying from .1 to 10 per cent of the weight of the monomer.  Suitable dispersing agents are dodecyl-1 acid sulphate, tetradecyl-1 acid sulphate, octadecyl-1 acid sulphate, dodecane-1-sulphonic acid, tetradecane-1-sulphonic acid, hexadecane-1-sulphonic acid and octadecane-1-sulphonic acid or sodium cetyl sulphate, sodium acetoxyoctadecane sulphonate or salts of long-chain sulphonated paraffin oil hydrocarbons.  The amount of dispersing agent used varies from .2 to 5 per cent of the weight of the aqueous medium. Reaction is accompanied by agitation of the mixture and is performed in a vessel of stainless steel, nickel, silver or lead or one equipped with a glass or enamel liner.  The air in the vessel is displaced by nitrogen, carbon-di-oxide, methane or helium or sufficient of the inert gas is introduced for the partial pressure of the oxygen present to be negligible.  The reaction temperature may vary from the freezing point of the aqueous phase to about 80 DEG  C.  It preferably lies between 20 DEG  and 60 DEG  C. The ratio of the aqueous to the non-aqueous phase may vary between 10 : 1 and 1 1.  The polymer may be isolated by drying the emulsion in spray form, by cooling the dispersion below freezing point of the aqueous medium or by the addition of aliphatic alcohols or of electrolytes.  The emulsions may be used directly as coating compositions.  Example 1 describes the polymerization of a mixture containing methyl methacrylate and isoprene; examples II and III a mixture of methyl methacrylate and 2,3-dimethyl, 1,3-butadiene.  The polymers may be combined with or prepared in the presence of plasticisers, stabilisers, fillers, pigments, dyes, softeners, natural or synthetic resins.
Patent GB-132217-A (GB)
IPC: G01L19/08
Abstract: 132,217. Aeronautical Instrument Co., and Brewer, G. June 20, 1918. Dials.-A dial angularly adjustable for zero, and particularly suitable for pressure gauges and air speed indicators, comprises a gapped annulus 1 of elastic material having its inner periphery and the graduations 4 eccentric with the outer periphery. The ends of the gapped portion may be provided with lugs 7, 8 whereby the annulus may be contracted into, or adjusted within, a groove in a bezel ring, such groove being of somewhat smaller diameter than the outer periphery of the dial, so that the dial is held in its adjusted position by friction. The indicating-hand is concentric with the graduations. The dial may be arranged outside the transparent cover-plate of the pressure gauge described in Specification 131,396. Specification 110,614 is referred to.
Patent GB-644088-A (GB)
Title: Improvements in and relating to the treatment of felts for paper making machinery and the like
IPC: D21F7/08
Filed: 1947-12-12
Abstract: 644,088. Paper-making machine felts. ORR FELT & BLANKET CO. Dec. 12, 1947, No. 32831. Convention date, Feb. 6. Drawings to Specification. [Class 96] The felt of a paper-making machine &c. is impregnated with a silicone resin &c. so that e.g. 10 to 25 per cent of cured resin remains in the felt. The resin as applied to the felt may be a liquid, or may be dissolved, emulsified or suspended in liquid. The felt may be dried for 3 hours at 225‹ to 250‹ F.
Patent GB-801860-A (GB)
Title: A new or improved stopper for bottles and other containers
Inventor: HODSON ASHLIN
IPC: B65D39/08
Filed: 1956-05-01
Abstract: 801,860. Screw plug stoppers. CONTAINERS & CLOSURES, Ltd. April 29, 1957 [May 1, 1956], No. 13323/56. Class 125(3). A screw plug stopper of polystyrene has a hollow portion 10 with spigot 11 and flange 12 integrally moulded and a disc portion 17 which closes the open end of the spigot and is sealed in position by deforming part 20 of the flange, the disc having a tapered periphery 19.
Patent GB-134625-A (GB)
IPC: B64D25/06
Abstract: 134,625. Calthrop, E. R. Nov. 8, 1918. Straps and bands.-A device for preventing an aviator from being thrown forward, while capable of quick release, comprises a chest-band 1 provided with rings 2 secured by a detent 3 sliding in a fixed bracket 5 and adapted to be released by a hand-lever 11. In a modification, two additional straps passing over the shoulders are provided. The apparatus may be combined with that described in Specification 24595/14, and the quickrelease device described in that Specification may connect four straps meeting at the breast. A pneumatic cushion may be used between the breast and the straps, and shock-absorbers may be inserted as desirable.
Patent GB-134891-A (GB)
IPC: C22B34/36
Abstract: 134,891. Imperial Trust for the Encouragement of Scientific and Industrial Research, and Stannard, O. J. Nov. 6, 1918. Tungstic acid; tungsten chlorides and oxychlorides; stannic chlorides.-Tungsten ores &c. are mixed with carbon and heated in dry chlorine at about 300‹ C. Tungsten chlorides or oxychlorides are volatilized and condensed. If tin is present, stannic chloride may be formed, and may be separated by treatment with water and hydrochloric acid, which decomposes the tungsten chloride but not the stannic chloride. If arsenic is present, it is preferably removed by a preliminary roast. Alternatively, the tungsten ore may be reduced by heating with carbon to a red heat, after which chlorine is passed over. Tungstic acid is obtained from the chloride or oxychloride by treating the condensed mass with hot or boiling water, with or without aqua regia; or the mass may be heated in a stream of air when chlorine is recovered and tungstic acid remains, which, if iron is present, may revert tb iron tungstate, which, however, is free from gangue.
Patent GB-583246-A (GB)
Title: Improvements in or relating to electrical arrangements for selecting individual components of a complex wave
IPC: H03B21/02
Filed: 1944-07-14
Abstract: 583,246. Generating high frequency oscillations. STANDARD TELEPHONES & CABLES, Ltd., and DALY, C. T. July 14, 1944, No. 13496. [Class 40 (v)] [Also in Group XXXVI] An arrangement for selecting a band of frequencies of a given width from any part of a relatively wide band of frequencies contained in a complex wave is shown in the Figure. The complex wave is passed through a low-pass filter F1 which cuts off higher frequencies than those desired, and the resultant wave is mixed in a balanced modulator M1 with carrier waves from source O1 of at least twice the cut-off frequency of the filter F1. The output from the modulator M1 is applied to a circuit SC adapted to select the upper side-band and apply it to a demodulator D1 which is also fed from the oscillator O1 The upper side-band of the output from the demodulator D1 is cut off by filter F3 whilst the desired band at its correct frequency.is passed. Within the selective circuit SC the upper side-band of the output of the modulator M1 is passed by filter F2 and fed to modulator M2 which is supplied by oscillator 02 of fixed frequency. The lower side-band of this modulator M2 is of low enough frequency to enable easy selection of the required band by means of a filter SF. This component is fed to demodulator D2 supplied by oscillator O2 and the upper sideband is filtered by filter F4 and so passed to the demodulator D1. The components of the selective circuit can be non-variable, since the frequency of the upper side-band, of the output of the modulator M1 may be kept the same for all input frequencies by suitable adjustment of the frequency of the oscillator O1. Fig. 2 (not shown) illustrates an arrangement for the calibration of a beat frequency oscillator using a fixed and variable oscillator, in which the latter takes the place of the oscillator O1. The output from the beat frequency oscillator and from the selective arrangement are fed to the plates of an oscillograph which indicates the various calibration points when a steady 1 : 1 Lissajou figure is obtained. Specification 576,192, [Group XX], is referred to.
Patent GB-528399-A (GB)
Title: Improvements in broken-end catch devices for ring spinning machines
IPC: D01H13/18
Filed: 1939-05-05
Abstract: 528,399. End catchers for spinning machines. GESSNER AKT.-GES., E. May 5, 1939, No. 13516. Convention date, Oct. 24, 1938. [Class 120 (ii)] In a ring spinning machine having catch rollers disposed below the feed cylinder to catch broken ends, the rollers 10 deliver the ends to a trough 11 disposed below them and divided by a raised floor 17 into an upper and a lower compartment, an endless conveyer in the trough having its top run 20 in the upper compartment 18 of the trough and its bottom run 21 in the lower compartment 19. Both floors 17, 24 of the trough may be dished so that the conveyer rests thereon at its edges only and the front wall 14 may be hinged to facilitate cleaning the trough. Resilient wipers 25 may rest on the top run of the conveyer to be rolled into bundles and delivered to a shoot 26 leading to a receptacle 28.
Patent GB-135628-A (GB)
IPC: F01L7/04
Abstract: 135,628. White, J., and Wall, A. W. Dec. 4, 1918. Addition to 122,447, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of]. Valves; valve-gear. - An engine having a stamped or pressed casing a, b, c, as described in the parent Specification, is provided with a sleeve valve controlling one or more ports in the combustion space. The invention is applicable to two-stroke and four-stroke-cycle engines, and the sleeve valve may be integral or sectional and may have longitudinal or rotary movement or a combination of the two. In the example shown, a cylindrical sleeve works in each cylinder and has a ring of ports controlling cylinder ports which lead into the inlet and exhaust conduits p, q. These conduits are formed as recesses in the parts c of the casing. Trunnions g are welded or otherwise secured at opposite points on the sleeve, and the sleeve is operated by a cam j and bell-crank lever k, l, a similar lever l being provided at the other end of the rocking shaft m of the bell-crank lever.
Patent GB-218802-A (GB)
Title: Improvements in retort furnace
IPC: C10B1/10
Filed: 1923-05-22
Abstract: 218,802. McIntire, C. V. May 22, 1923. Retort furnaccs.-The wall of a retort is ribbed or corrugated to form internal and external grooves, the latter of which serve as flues for the heating-gases. In the construction shown in Figs. 1 and 2 the bottom wall B of the retort is semi-cylindrical in form, and is built up of arcshaped sections of a width corresponding with one external groove B<2>, the sections overlapping at their ends and abutting at their sides, where joints are made either by the brickwork setting or by interposed luting. The sections are yieldingly pressed in contact with one another by springs D' and bell-crank levers D bearing on flanges B<3>, which close the ends of the external grooves. Walls.-The retort is enclosed in a setting consisting of an outer wall, an inner lining, and an intermediate filling C<1> of infusorial earth or other heat insulating material, and its cpen top is covered bv a door or lid G. The heating of the retort is affected by bunsen burners E, the products of combustion being exhausted through the flue C<2>. The charge is agitated by a stirrer consisting of an oscillating shaft carrying two sets of blades or paddles m, ma, having triangular ends shaped to fit the internal grooves, the shaft being operated by an hydraulic ramp and rack P<1>, and the blades passing between cleaning arms Q, Q<A>, set in the upper side wall portions of the retort. Fluid may be injected into the retort through pipes R'. Rotary furnaces; charging and discharging.- In the construction shown in Fig. 6 in which the retort is of cylindrical form and is mounted to rotate, the inlet and outlet passages F<1>, C<40> for the heating gases are set respectively below and above an horizontal plane passing through the axis of the retort, so that the heat is applied only over the charge-supporting portion of the shell. The charge is supplied by a screw conveyer separating within a hollow trunnion, and the semicoke is discharged through an internally screwed and a valved shoot. Direct contact between the beating-gases and the shell of the retort may be prevented by fitting flues of triangular section in the external grooves B<20>.
Patent GB-150409-A (GB)
Title: A new or improved burglar alarm
IPC: G08B15/00
Filed: 1919-05-29
Abstract: 150,409. Davies, H. J., and Whitehouse, H. J. May 29, 1919. Burglar and like alarms. - An explosive alarm consists of one or more lengths of material attached to a door and door frame, to windows or the like, or stretched across a passage way, and provided with ends or parts movably secured together and associated w i t h a charge of explosive protected by a waterproof covering. In the form shown in Fig. 5, the ends 5 of two lengths of the material have an explosive charge 6 between them and are roughened. A band 7 of fabric is attached by adhesive to one length so as to form a hoop or guide for the other. A waterproof cover 8 encloses the whole and may form the guiding loop, band 7 being then dispensed with. In a modification shown in Fig. 6, the ends are attached to a metal case 10 containing explosive 9, and to a pin 14 respectively. When tension on the fabric causes pin 14 to be withdrawn, a spring- held plunger 12 descends and explodes the detonator 11 and the charge. The free ends of the fabric are doubled over and an eyelet inserted in the doubled-over end, or the ends may be attached to a triangular loop.
Patent GB-128066-A (GB)
Title: A New or Improved Method of and Apparatus for Treating Gases and Vapours Electrically.
Inventor: HOOFNAGLE WILLIAM THEODORE
IPC: B01J19/08
Filed: 1918-08-21
Abstract: 128,066. Hoofnagle, W. T. Aug. 21, 1918. Gases, treating with electric discharge.-In operations such as the production of nitrogen oxides from air, intermittent electric discharges of short duration and high current density are passed across a current of the air &c., which is at a pressure substantially below that of the atmosphere. This pressure should be such that a dense reddish striated discharge takes place; it may vary between 100 and 400 mm. of mercury, but preferably approximates to the latter figure. No considerable heating occurs. The speed of the gas may be so related to the frequency of the discharge that each portion of the gas is only treated once. In one construction of apparatus, a preferably highpressure direct-current generator 22 is shunted by a condenser 23 and connected to one electrode directly and to the other through a rotary or quenched spark gap 24a which may give 5000 breaks per second. The treating chamber A has a metal base 9, a cylindrical metal side wall 10 with windows 29, and an insulating cover 8 with a central metal fitting 6. A shaft 12 provided with a non-conducting hand-wheel 13 and a pointer 14 moving over a scale 15 passes through a stuffing-box 11 and screws to the fitting 6. The shaft carries an electrode E consisting of a disk with a tapered flange opposite a tapered ring electrode E<1> carried by the base. Air is drawn by a pump successively through a meter, a regulating valve, a vertical cylinder reservoir eliminating disturbances, a pipe 5, an annular passage 7 in the fitting 6, the annular space between the electrodes, an outlet 18, a cooling coil provided with a trap for removing condensed liquid, the pump, and the oxidizers and absorbers. In another construction, several pairs of electrodes are connected in series to one electric supply arrangement. Upper tubular electrodes, with internal cooling ribs, are fitted in an insulating horizontal diaphragm extending across the reaction chamber. Lower electrodes consisting of flanged disks are mounted in a parallel perforated diaphragm with their flanges below the edges of the tubes. Ribbed bosses on the lower electrodes project into the lower ends of the tubes for cooling. A large space above the diaphragm allows the air entering at the top to become quiescent. A multitubular water-cooler is arranged across the chamber below the diaphragms, and at the lower end of the chamber there is an outlet for condensed liquid.
Patent GB-137198-A (GB)
Abstract: 137,198. Wright, C. A. April 7, 1919. Watch stands. - A stand having the appearance of a grandfather's clock comprises a main body 1 with a cavity 2 to receive the watch, and a top part 5 which can be slid on and off.
Patent GB-1104962-A (GB)
Title: Improvements relating to air supply systems
IPC: B01D53/26
Filed: 1965-03-31
Abstract: 1,104,962. Compressed air systems. HONEYWELL Inc. March 31, 1965 [May 27, 1964], No.13737/65. Heading F1N. The supply from an air compressor 22 is purged of moisture before entering a storage container 11 through a check valve 46, the purging being accomplished by passing the air through a drying chamber 40 containing desiccant material which is regenerated during compressor off-loaded periods by passing air from the compressor to atmosphere through the chamber 40 and on unloading valve 50. The unloading valve 50 is operated by air supplied thereto through a pipe 52 from a control device 53 operable in response to a predetermined maximum pressure in the container 11. Alternatively a switch responsive to the predetermined pressure may cause operation of the unloading valve. When the unloading valve 50 is operated a pipe 34 is connected to atmosphere and the fall in pressure in the pipe 34 causes operation of a time delay device 30. Operation of the device 30 causes, after a predetermined delay, an electric motor 25 driving the compressor 22 to be stopped. The time delay device 30 may be omitted so that the compressor operates continuously. The desiccant material may be silica gel, coarse gravel or wood blocks.
Patent GB-1170493-A (GB)
Title: Improvements in Sequential Control Apparatus
IPC: G05B19/04
Filed: 1967-03-28
Abstract: 1,170,493. Transistor pulse circuits. METABOWERKE K.G. CLOSS, RAUCH & SCHNIZLER. 28 March, 1967 [20 Oct., 1966], No. 13893/67. Heading H3T. [Also in Division G3 and G4] A sequential control apparatus (see Division G3) employs NOR-logic elements connected as counter and coincidence stages. As shown, Fig. 5, a pair of NOR-logic elements are interconnected to form a storage element having an input 23, output 26 and a clearing input 28; in a modification, Fig. 12 (not shown), a number of NOR-logic elements are interposed between input 23 and cleaning input 28, whereby, on application of a steady signal to input 23, a pulse appears at the output 26 having a duration proportional to the number of interposed NOR-logic elements. As shown, Fig. 7, a ring of NOR-logic elements forms an astable multivibrator, whereby a steady signal on an input 23 causes a train of pulses, at an output 26, having a pulse rate dependent on the number of NOR-logic elements. Fig. 9 shows a monostable multivibrator formed from four NOR-logic elements, whereby a steady signal on an input 23 causes a pulse on output 26. In a modification, Fig. 11 (not shown), a series of monostable multivibrators are interconnected by NOR-logic elements, whereby the application of a steady signal on input 23 causes, after a delay proportional to the number of multivibrators, a pulse on an output 26. .
Patent GB-839092-A (GB)
Title: Improvements in or modifications of apparatus for detecting the presence or absence at a location of a body of material
IPC: G01F23/296
Filed: 1958-05-01
Abstract: 839,092. Control of level in hoppers. BAILEY METERS & CONTROLS Ltd. May 1, 1958, No. 13912/58. Addition to 821,148. Class 78 (1). [Also in Groups XVIII and XXXV] The level indicating and controlling device described in the parent Specification is modified in that the sensing member is caused to vibrate transversely of its axis rather than longitudinally. As shown, the member consists of a rod 4 welded at its mid-point into an aperture 3 in the wall 1 of a container 2. The outer end part 9 of the rod is of ferromagnetic material and is disposed between a polepiece 7 of a solenoid coil 6 and a pick-up coil 11. The coil 11 is connected to a feed-back amplifier 14 (see Group XXXV) which is also connected to the coil 6 energizing the polepiece 7. In operation, the circuit consisting of the coil 11, the feed-back amplifier 14 and the coil 6 is arranged to oscillate at a natural resonant frequency of the rod 4, causing transverse vibrations of the rod which are maintained whilst the level of material in the container is below the inner end 18 of the rod. When the material level is at or above that of the rod the vibrations are damped and the oscillations in the said circuit cease, whereupon a relay stage 16 operates an alarm or control device 17. To increase the sensitivity of the rod to damping a vertical plate may be affixed in a slot in the inner end of the rod.