baber/WOPTO huggingface dataset:
Patent GB-328182-A (GB)
Title: Improvements in air compressors
IPC: F04B27/10
Filed: 1929-08-26
Abstract: 328,182. Herzmark, N. Aug. 26, 1929. Compound piston pumps ; pump-actuating mechanism ; regulating compression.-A circular flange having a cam profile c is rotated by a shaft a and reciprocates a cylinder block f, formed with a peripheral cam e engaging the cam c, the cylinders in which move over fixed pistons h, j. A coiled spring k keeps the cams in contact. The compressor is fitted to a motor car having a compressed air starter D. The shaft a replaces the starting handle, and is fitted with a claw intended to be engaged with the driving claw or coupling d of the starter. Two stages of compression are shown, air being drawn into the low-pressure cylinder through an inlet g<1> on the intake stroke, and discharged through a valve-controlled passage in the cylinder block to an expansion chamber in the block on the compression stroke; on the intake stroke it passes to the high pressurecylinder from which it is delivered through valvecontrolled passages j<2>, b<2> to a compressed air bottle or reservoir for the starter. The cams give four strokes per revolution, the intake strokes being faster than the compression strokes. A latch n is arranged opposite a recess f<2> in the cylinder block at the end of the compression stroke; it is pressed upwards by a spring o and downward by the delivery pressure, which may be transmitted through oil. A retaining ball p normally holds the latch in its upper position. At the critical pressure the ball is forced aside and the latch holds the cylinder block in a fixed position, stopping compression; the spring o returns the latch when the pressure falls sufficiently. Axial passages in the cylinder block allow entry of oil which is distributed centrifugally.
Patent GB-542955-A (GB)
Title: Improvements in or relating to means for controlling the supply of respiratory gases to breathing apparatus
IPC: A62B9/02
Filed: 1939-09-15
Abstract: 542,955. Fluid-actuated valves. MOSCHINI, M., GUIDI, G., and DONATI, R. Sept. 15, 1939, No. 25958. Convention date, Sept. 15, 1938. [Class 135] A device for controlling the flow of gases from a cylinder containing compressed gases to a diver, or air pilot, comprises in its simplest form a piston valve operated by the movement of a spring-controlled diaphragm which is subjected on one side to the external pressure and on the other to the pressure of the breathing chamber such as a bag of rubberized fabric. The valve opens when the difference in pressure is less than a pre-determined amount, and so automatically keeps opening when the oxygen in the bag is consumed and the resulting carbon dioxide absorbed. A hand-operated push-rod may operate the diaphragm to permit also of hand-control of the admission of oxygen. The apparatus may also be constructed so that the final supply of gases to the bag is dependent on the pressure of the surrounding medium, e.g. the water in which a diver is immersed, and the supply is arranged to take place only when the pressure of the medium is increasing, or in another form only when the pressure is decreasing. In Fig. 2 gases are admitted to a chamber Y, connected by a pipe P to the bag, under control of a valve v<SP>1</SP> which opens under control of a piston z adapted to open the valve against the action of a spring s<SP>11</SP> when the increasing pressure deflects an electric diaphragm t and compresses liquid in a chamber u. Some liquid passes into a chamber u<SP>1</SP> and finally the spring s<SP>11</SP> restores equilibrium and closes the valve v<SP>1</SP> when the pressure on the diaphragm t ceases to increase, liquid passing from chamber u<SP>1</SP> to chamber u via a calibrated passage z<SP>1</SP>. The chamber Y is supplied from a chamber X the supply of gas in which is governed by a valve v under control of a diaphragm r and springs s, s<SP>1</SP> and interposed levers. The diaphragm r cuts off supplies to the chamber X when the pressure therein has a given value over the external pressure which acts on the diaphragm r.
Patent GB-816240-A (GB)
Title: Improvements in or relating to sectional containers
IPC: B65D6/00
Filed: 1956-08-24
Abstract: 816,240. Tanks. PFAUDLER C0. Aug. 24, 1956 [Aug. 26.1955], No. 25973/56. Class 69 (1). The joins between adjacent panels 11, 12 of sectional containers lined with glass or a vitreous enamel 28 are protected by strips 22 of corrosion-resistant metal or alloy secured to the edges of the panels as by spot-welding at 24, the glass or enamel lining partially overlapping the strips. The panels can thus be prefabricated, and a container built up by bolting the panels together at 30 and welding the strips 22 together at 32 with a corrosion - resistant welding metal.
Patent GB-246899-A (GB)
Title: Improvements in and relating to electrical connectors
IPC: H01R4/02
Filed: 1924-10-31
Abstract: 246,899. Graham, J. E. Oct. 31, 1924. Couplings.- A connector for soldering wires together or to terminal screws &c. comprises a blank of sheet material bent or formed to provide a recess to receive solder, and slots or openings that receive the wires &c. and communicate with the recess. A sheet 1, Fig. 6, of metal &c. is bent to form a hollow triangular square, or like body, having an aperture 9 to receive the solder and openings 5 - - 8 for the insertion of wires. Alternatively a plate 10, Fig. 9, has flanges 11 and lugs 12 bent up to form a recess 21 for solder and spaces for the wires. A cylindrical member 16, Fig. 13, of sheet metal may be employed and can be sprung on to a terminal screw &c., wires passed into the openings 18 and solder placed in the projecting end of the cylinder. The solder mav be enclosed in the connector during manufaoture. Two cup-like members of sheet metal may be forced or spun together to contain solder and form a connector.
Patent GB-480940-A (GB)
Title: A process for preparing pure or substantially pure salts of acid esters of polybasic inorganic acids
IPC: C07C305/06
Filed: 1937-09-24
Abstract: Salts of acid esters derived from polybasic inorganic acids and alkenes or alcohols having more than five carbon atoms are freed from inorganic salts, e.g. sodium sulphate present as impurity by extracting, preferably in the presence of water with alcohols, ketones or phenols having six or more carbon atoms in the molecule. In examples: (1) an alkene absorption product in sulphuric acid is neutralized with caustic soda solution and is extracted with a mixture of secondary alcohols having 6 to 9 carbon atoms in the molecule; (2) cetyl sulphate is neutralized and extracted hot with methylamylketone; the extract is mixed with an ethyl alcoholic solution and extracted with gasoline; on removing the gasoline by evaporation, pure sodium cetyl sulphate is obtained.  Solutions of the esters in the solvents used for the extraction, e.g. phenol or alcohol may be used as such in the manufacture of insecticides. Secondary heptyl alcohol, benzyl alcohol, terpineol, menthol, dibutylketone and cresol are specified solvents.ALSO:In the purification of salts of acid esters derived from polybasic inorganic acids and alkenes or alcohols having more than five carbon atoms, solutions of the pure salts in alcohols, phenols and ketones having six or more carbon atoms are obtained. These may be used in the manufacture of insecticides.  Secondary heptyl alcohol, a mixture of secondary alcohols, methylamyl ketone, dibutyl-ketone, benzyl alcohol, terpineol, menthol, phenol and cresol are specified solvents.
Patent GB-532637-A (GB)
Title: Improvements relating to electric switches actuated by doors
IPC: H01H3/16
Filed: 1939-09-16
Abstract: 532,637. Retractive switches. FLORY, H. E. Sept. 16, 1939, No. 26003. [Class 38 (v)] A door-operated switch, suitable for black-out conditions, comprises a body a secured directly or, as shown, by parallel metal or other strips b, to the door-frame and operated by a thin metal or other strip g having a turned-up end o against which the door bears. A blade spring n bearing against the end o and against similar ends p of strips b, restores the strip g when the door is opened. The strip g carries an insulating-plate k carrying a contact j adapted to bridge contacts h on the body when the door is closed. A further pair of contacts i may be bridged in the open position of the door and may operate a pilot lamp or bell. Other dispositions of contacts are, however, referred to. The Provisional Specification refers also to a helical spring.
Patent GB-1039790-A (GB)
Title: Improved heating apparatus
IPC: H01L21/60
Filed: 1963-07-02
Abstract: 1,039,790. Soldering. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 2, 1963 [July 2, 1962], No. 26119/63. Heading B3R. An apparatus for making one or more solder connections between solder coated bodies, comprises a means for directing heat in a path of thin linear cross-section on to the line of juncture of the bodies. A module 10, Fig. 1, having pre-soldered connections 11 is to be joined to a base 12 having complementary connections (not shown). The apparatus comprises an arm 13 carrying one or more plates 15 of tungsten alumina or beryllium oxide heated by a supporting serpentine element 41 and a pair of locating claws 17, the plates and arms having limited movement in a vertical plane which is restrained when a handle-operated cam 19, 21 is out of engagement with a spring 18. The claws can be engaged with the module when the cam is vertical and in the position shown are released, for example at the end of each heating cycle. The arm 13 may move simply in a vertical plane, or may also have a lateral or swinging movement to obtain modules from a remote location and set them in the required position.
Patent GB-645583-A (GB)
Title: Improvements in thermal regenerators
IPC: F28D17/02
Filed: 1948-10-07
Abstract: 645,583. Thermal regenerator fillings. SETTERBERG, I. Oct. 7, 1948, No. 26192. [Class 64(i)] A regenerator filling brick has a core of silicon carbide and a gas-tight cover of refractory non-oxidizing materials, e.g. a mortar of chromite, magnesite and/or quartz with water-glass as a binding agent. Powdered silicon or glycerine may be mixed with the silicon carbide forming the core.
Patent GB-588307-A (GB)
Title: Improvements in or relating to impedance transformers
IPC: H01P5/02
Filed: 1944-12-30
Abstract: 588,307. Impedance-matching. STARR, A. T. Dec. 30, 1944, No. 26194. [Class 40 (iii)] An impedance-transformer comprises two axially slidable metallic slugs 1, 2, mounted inside the outer conductor 3 of a. coaxial line, as shown, or outside the inside conductor, or on a pair of Lecher lines. If each slug is # /4 long and if they are spaced #/4 apart, the impedance presented by the loaded section at D is Z<0> x (Z1 /Z0)<4>, where Z0, Z, are the respective characteristic impedances of the line within and without the shigs. Other transformation ratios can be obtained by varying the above dimensions. Reference has been directed by the Comptroller to Specification 572,739.
Patent GB-740174-A (GB)
Title: Improvements in flying boats
Inventor: ROBERTSON FRANK HENRY
IPC: B64C35/00
Filed: 1949-10-12
Abstract: 740,174. Flying boat hulls. SAUNDERSROE, Ltd. Sept. 20, 1950 [Oct. 12, 1949], No. 26217/49. Class 4. [Also in Group XXI] In the hull of a flying boat there is provided a water-tight trunk 32 which is open at the bottom but can be closed by a motor - operated non-water-tight flexible door 16, as described in Specification 543,232. Inside the trunk a framework 11, sliding on guides 12, carries an object 10, e.g. a radar aerial, a searchlight or bomb - dropping device, which is rotatable through 90 degrees by the jack 21 when the object is to be withdrawn into the trunk. Ducts having clack valves are provided in the lower sides of the trunk so that the water in the trunk may drain away quickly when the flying boat takes off. The trunk is best situated aft of the main step at a position given by the formula where X=distance between main step centroid and the centre of the trunk, La=length of hull afterbody, L=overall planing length of hull, b=maximum chine beam.
Patent GB-443976-A (GB)
Title: Capacity measuring instrument
IPC: G01R27/26
Filed: 1934-09-13
Abstract: 443,976. Capacitance measurements. SHARLAND, L. A., and KENWELL RADIO, Ltd., 15, Windsor Street, Islington, London, and AUTOMATIC COIL WINDER & ELECTRICAL EQUIPMENT CO., Ltd., Windsor House, Douglas Street, Westminster. Sept. 13, 1934, No. 26301. [Class 37] An instrument for measuring the capacity of condensers comprises an oscillator, a circuit inductively coupled therewith and adapted for the inclusion of the capacity to be measured, means for rendering the circuit resonant with the oscillator before, and for restoring resonance after, the insertion of the capacity, and means for indicating the value of the capacity in accordance with the adjustment of the means for restoring resonance. In the arrangement shown, the oscillator comprises a valve V, condensers C<1>, C<2> and inductance L, a point on the inductance being connected to the high tension terminal T<4> through a milliammeter M. The coil L is coupled with a coil L<2>, which is connected at one end to the stator VC<1> of a four-gang variable condenser VC, and at the other end to the rotor of the condenser, to earth, and to a terminal T<5>. The remaining stators VC<2> ... VC<4> of the variable condenser are connected to contact studs of a rotary switch S, further studs of which are connected to fixed condensers C<3> ... C<11> of different capacities, as shown. By adjusting the switch S, different amounts of capacity can be connected in series or parallel with the coil L<2> in order to adjust the range of the instrument. The capacity to be measured is connected across terminals T<5>, T<6>. The total capacity associated with the coil L<2> is such as to produce resonance with the oscillatory circuit, indicated by maximum current through the milliammeter M. The insertion of a capacity across the terminals T<5>, T<6> throws the circuit out of resonance, and resonance is restored by adjusting the capacity of the variable condenser VC, the amount of adjustment being indicated by a drum D having a number of scales corresponding to the range in use, which is determined by the setting of the switch S, the control knob of which is numbered to indicate the various positions of the switch in co-operation with a pointer PT.
Patent GB-268242-A (GB)
Title: Improvements in or relating to conveyors for bulk goods
IPC: B65G25/00
Filed: 1926-10-21
Abstract: 268,242. United Glass Bottle Manufacturers, Ltd., and Hurlbut, F. A. Oct. 21, 1926. Charges, conveying.-In apparatus for conveying glassware through leers of the kind comprising two series of slats 1, 19 of which the series 19 is reciprocated horizontally, and the series 1 is reciprocated vertically between limits which are above and below the carrying surface of the first series, each series is composed of a number of sections separated by air spaces 13, and each slat is preferably anchored only at one point 11 in its length. The slats 1 are supported by members 9 on a frame 2 and are anchored at their middle points 11 by locking bars 10. Rollers 5 are eccentrically mounted on spindles 4 mounted in the frame 2 and are supported by rollers 6 mounted in frames 7 pivoted at 8. Cranks 14 on the spindles 4 are connected by a rod 18 to a trammel 15 which is actuated by a pin 16 on a rotary disc 17. The slats 19 are similarly mounted on a frame 22 which rests on rollers 23 carried by supports 25 and is pivoted to one end of a rod 34 reciprocated by a trammel 27. The rod 34 is connected to the trammel by a crank 33, shaft 32, crank 31, link 30, rocking lever 29 and connecting rod 28.
Patent GB-448775-A (GB)
Title: Improvements in liquid emulsifying apparatus
IPC: B01F3/08
Filed: 1934-09-13
Abstract: <PICT:0448775/III/1> <PICT:0448775/III/2> <PICT:0448775/III/3> An emulsifying-apparatus 1 and a receptacle 3 for the emulsified product are adapted to be connected together, e.g. by screw threads 2, 4, in a relatively rigid but readily separable manner so that the receptacle constitutes a supporting base for the emulsifier.  A collar 19, Fig. 5, provided with a spout 20 and handle 21, may be attached in place of the emulsifier to the receptacle, converting the latter into a jug.  The emulsifier preferably comprises a cup-like vessel through the base of which projects a cylinder 5 containing a plunger operated by a hand lever 10, whereby the liquid is forced out through an emulsifying valve 24.  The valve comprises a dished member 13a against the rim of which presses a flexible diaphragm 13b, these parts being mounted on a stem 22 slidable in a sleeve 23 of a cap 24 which is adjustably screwed to the lower end of the cylinder 5.
Patent GB-1372979-A (GB)
Title: Parboiling and drying of paddy
IPC: A23L7/10
Filed: 1973-06-01
Abstract: 1372979 Parboiled rice M M H I FERNANDO 1 June 1973 [3 June 1972] 26352/73 Heading A2Q Moist rice paddy is parboiled and dried by passing it along a conduit externally heated by burning paddy husks. In a particular apparatus, the conduit is a tapering drum 7-Fig. 2-fitted with longitudinal fins 8 and rotating about a horizontal axis in the upper part of furnace 11. Moist paddy in hopper 1-Fig. 3- is supplied to one end of the drum via conveyor 3, funnel 5 and conduit 6. Paddy husks are fed from hopper (13)-Fig. 4, not showninto the air supply of blower 14 from which a blast of airborne husks are supplied via conduit 19 to the lower part of furnace 11. The rate of supply of air and husks is thermostatically controlled to ensure a constant temperature in drum 7. The treated paddy is discharged via chute (21)-Fig. 4, not shown-at the opposite end of the furnace.
Patent GB-443849-A (GB)
Title: Improvements in and relating to electric clocks
IPC: G04B19/30
Filed: 1934-09-13
Abstract: 443,849. Time-alarm signals. BRIGGS, G., 2a, Blomfield Road, Maida Hill, London. Sept. 13, 1934, No. 26357. [Class 118 (ii)] [See also Group XVIII] A synchronous - motor clock in which a lowvoltage lamp 15 for illuminating the dial 12 is fed from the secondary of a transformer, the primary being the field winding of the motor, is characterized by the provision of a switch 21, 23 in the lamp circuit. The clock includes a known form of electric alarm 18 wherein 19 is the setting dial and 20 is a rod which is moved axially to prepare the alarm. This rod 20 also acts as the switch for the lamp 15 since by rotating this rod a blade 21 on it meets the control contact 23 of the lamp and closes its circuit. Blade 21 is insulated from the alarm-preparing switch. According to the Provisional Specification the lamp may be energized by tapping the field coil of the motor or by a separate transformer also the lamp may be external of the clock.
Patent GB-644071-A (GB)
Title: Method of preparing phthaloyl chlorides
IPC: C07C51/58
Filed: 1947-10-01
Abstract: Phthaloyl chlorides are manufactured by heating a trichloromethylbenzoyl chloride (or mixture of isomers) in the presence of an equimolecular proportion of a dicarboxylic acid capable of forming an anhydride, and preferably in the presence of a hydrolysis catalyst.  Suitable dibasic acids are phthalic, succinic, glutaric and o-diphenic acids and naphthalene o-dicarboxylic acids, but preferably the more volatile dicarboxylic acids such as maleic acid.  In an example, maleic acid is added gradually to a mixture of p-trichloromethylbenzoyl chloride and zinc chloride at 135-140 DEG C. in a glass retort, yielding terephthaloyl chloride.  Other catalysts specified are ferric chloride, antimony trichloride, stannic chloride, sulphuric acid and p-toluenesulphonic acid. Trichloromethylbenzoyl chlorides are obtainable by treating a toluic acid with thionyl chloride and chlorinating the resulting toluoyl chloride, or by chlorinating a tolualdehyde. Specification 643,788 is referred to.
Patent GB-394645-A (GB)
Title: Improvements in or relating to weighing apparatus
IPC: G01G19/41
Filed: 1931-09-23
Abstract: 394,645. Weighing-apparatus. WEISSENBURGER, A., Offenbach-on-Main. Germany. Sept. 23, 1931, No. 26565. Convention date, Sept. 23, 1930. Void [Published under Sect. 91 of the Acts]. [Class 143.] Computing-apparatus.-Relates to a weighing- apparatus for automatically computing and printing the monetary value of the commodity and wherein the computation is derived from the angular movement of the indicating pointer and a length of radius proportional to the unit price, and consists in ascertaining the arc of movement (which is proportional to the required computation) by measuring mechanically the chord length and correcting automatically for the difference between the arc and chord by means of a cam rotated in accordance with the movement of the pointer. The price per unit weight is set by adjusting a lever i over a scale h. The lever, operating through gearing, slides a rack m along a stationary guide n a distance proportional to the unit price, and the rack carries with it a slide s mounted on a spring-pressed pivoted arm f. When the commodity is placed on the scale pan, the pointer e moves through an angle proportional to the weight. A crank p is then rotated to lock the pointer by means of cam-operated grippers d and allow the arm f with its slide s to rotate into contact with the pointer. The slide s during its arc of movement rotates a value printing wheel k by means of a metal band v. As the displacement of the band v is equal to the chord and not the arc through which the slide s has moved, a correction is effected by causing the arm f to set a cam h<1> which permits a correcting movement of a pivoted arm g. The arm g carries a slide operated by the rack m in a manner similar to the slide s on the arm f, and coupled by a metal band l to a roller z round which the band v passes. The roller z is thus displaced by the band l to rectify the setting of the printing wheel. A fixed curved slot x guides band-tensioning rollers R carried on the rack m so as to 'avoid false actuation of the printing wheel during adjustment of the price lever i.
Patent GB-488275-A (GB)
Title: Improvements relating to electric amplifiers
IPC: H03F3/02
Filed: 1936-09-30
Abstract: 488,275. Repeating arrangements. ALLGEMEINE ELEKTRICITATS - GES. Sept. 30, 1936, No. 26583. Void. Convention date, Sept. 30, 1935. Drawings to Specification. [Class 40 (iv)] [Also in Group XL] In a multi-stage amplifier harmonic distortion in one stage is neutralized in the succeeding stage and the output impedance of the stages are modified so as to be similar. In one arrangement, in which the amplifier feeds a cable and the output stage is resistance- .coupled to the preceding stage, the output circuit is modified by arranging a condenser in parallel with the transformer secondary so that the impedance presented to the valve is practically resistive. Both the intervalve and output circuits may be modified to obtain similarity.