baber/WOPTO huggingface dataset:
Patent GB-1220031-A (GB)
Title: Doll with growing tooth
IPC: A63H3/48
Filed: 1969-02-04
Abstract: 1,220,031. Growing tooth for dolls. REMCO INDUSTRIES Inc. 4 Feb., 1969 [5 Sept., 1968], No. 6048/69. Heading A6S. A mechanism, mountable in a dolls head, to simulate the growth of a tooth, comprises (a) a pivoted lever arm 14 having a tooth 12 at one end and pivoted at 22 so that the tooth can occupy an exposed position in the mouth 13, or a retracted position, said arm being biased by spring 15, towards the exposed position, (b) a latch 20 fixed on the under side of arm 14, to hold the latter in the retracted position, (c) a shaft 16 mounted to slide horizontally to and from the mouth, below arm 14, the shaft 16 being biased by spring 32 towards the mouth 13 and (d) a cam surface 18 attached to the top of shaft 16 such that when the shaft is moved towards the mouth (e.g. by lifting the tooth with a spoon), surface 18 lifts arm 14 and the tooth, by engaging with latch 20, into the retracted position. When the tooth is required in the exposed position, a dummy P is' inserted into the mouth, to push shaft 16 backwards, thus lowering latch 20 on cam 18, until the latch engages in a step 36. of surface 18.
Patent GB-905193-A (GB)
Title: Improvements in and relating to means for controlling hydrogen ion concentration
Inventor: AINSWORTH FRANK GLAVE
IPC: G05D21/02
Filed: 1958-02-25
Abstract: 905,193. Automatic control systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 25, 1959 [Feb. 25, 1958], No. 6088/58. Class 38 (4). In a system for automatically controlling pH value of liquid flow, a valve controls the addition of a chemical agent, and a pH meter, having its sensing electrode in the flow downstream of the point where the chemical agent is added, moves a member in one sense or the other to influence light rays and thereby cause the valve to move towards a closed or open position according to the sense of pH deviation. In Fig. 2 a pointer SA of an instrument measuring the pH value of a flowing liquid (not shown), by means of an electrode immersed in the liquid, carries a shutter SH which blocks light from a lamp L when the liquid has a desired pH value. With rise or fall in the pH value, pointer SA moves one way or the other about pivot P to allow a photo-cell C 1  or C 2  to become illuminated via a mirror M 1  or M 2  so that one or other of two electric motors (not shown) is started to correct the pH value by opening or closing a valve controlling the supply of acid or alkali upstream of the electrode. Operation of the motors during correction is made intermittent by a continuouslyoperating time switch (not shown). Use of a reversible electric motor instead of two motors is referred to.
Patent GB-101071-A (GB)
Title: Improvements in or relating to Reversible Rotary Pumps.
IPC: F04C2/344
Filed: 1916-05-02
Abstract: 101,071. Selson Engineering Co., and Goodwin, H. May 2, 1916. Fixed-abutment type; discharge passages. - A reversible rotary pump, suitable for supplying lubricants to machines having reversible motion, is provided with an inlet port and two outlet ports h, h<1>, one or the other of which, according to the direction of rotation, is automatically closed by a single ball or like valve i, the fluid being discharged through the open port into the outlet nozzle k, which is fitted with a bar l to obstruct the entry of the ball i. Reference has been directed by the Comptroller to Specification 103,199.
Patent GB-115031-A (GB)
Title: An Improved Vehicle Wheel Tyre and Method of Manufacturing the same.
Inventor: ABBOTT ADRIAN OREN
IPC: B29D30/00
Filed: 1918-04-13
Abstract: 115,031. Abbott, A. O. April 20, 1917. [Convention date]. Jackets and covers.- Tyre covers are formed by simultaneously winding two or more fabric strips of slightly greater length than the circumference of the core, starting at different angular positions of the core so that the lap joint of each strip occurs at and is separated by a full portion of the adjacent strip. The figure shows two such strips a, b in their finished position on the core 1 and the commencement of a second pair of strips.
Patent GB-493144-A (GB)
Title: Horticultural binding tape
IPC: A01G5/04
Filed: 1937-03-03
Abstract: Horticultural binding-tape is made from the composition described in the parent Specification, viz. a rubber-wax or rubber-asphalt composition.  The use of the tape for wrapping the stems of bouquets and flowers and for binding a graft union is shown.  The Specification as open to inspection under Sect. 91 comprises also a flower made from the above composition.  This subject-matter does not appear in the Specification as accepted.ALSO:Horticultural binding tape is made from the composition described in the parent Specification, viz. a rubber-wax or rubber-asphalt composition.  The use of the tape for wrapping the stems of flowers and for binding a graft union is shown.
Patent GB-540151-A (GB)
Title: Improvements in shunt a.c. commutator motors
IPC: H02K27/16
Filed: 1940-04-10
Abstract: 540,151. Alternating-current commutator motors. SCHWARZ, B. (Schorch-Werke Akt.-Ges.). April 10, 1940, No. 6506. [Classes 35 and 38 (iv)] In an A.C. commutator motor the speed of which is regulated by an induction regulator in the rotor circuit the power factor is corrected by means of a variable voltage compensation transformer, the secondary of which is connected in the rotor circuit and which automatically adjusted, Fig. 1, shows a motor with a speedregulating induction regulator DR in the circuit of the rotor A and a compensation transformer DC controlled by a motor PM operating a switch RC. The motor PM is controlled by wattmetric relay WR, the voltage winding WY of which is connected across two phases of the supply to the stator and the current windings WC across the secondary of a transformer CT the primary of which is in unison with the rotor A. In a modification the wattmetric relay operates the compensation transformer directly. In a modification the wattmetric relay is controlled by the power factor in the primary circuit of the motor. In a further modification the stator and rotor currents are numerically equal and the motor PM is employed to keep them in equal and opposite phase displacement with respect to the voltage.
Patent GB-775302-A (GB)
Title: Improvements relating to polarised electro-magnetic relays
Inventor: ROMMEL FREDERICK EMIL
IPC: H01H50/54
Filed: 1954-03-05
Abstract: 775,302. Electromagnetic relays. TELEPHONE MANUFACTURING CO., Ltd. March 2, 1955 [March 5, 1954], No. 6543/54. Class 38(5) A polarized relay in. which the contact structure is separate from and connectible to the magnetic driving structure, employs a magnetic structure generally as disclosed in Specification 619,546 with reference to Figs. 1-4, the armature 3 of the present invention, however, does hot carry the moving contacts but operates the latter by a pair of hard insulating balls 4. The contact structure is mounted on a base plate 7 having a pair of lugs 6 fixed by screws to the upper end of the magnetic structure (Fig. 1, not shown), the contact structure comprising fixed contact strips 22 and moving contact strips 15, 16 separated by a pair of outer insulators 17, 18 and a pair of central insulators 19, 20. The assembly is held together in a stack by bolts 8 and nuts 9, the bolts electrically connecting their respective contacts 22 but being insulated from the contacts 15, 16 by insulating sleeves 24. The stack is mounted on the plate 7 by a pair of screws 10 passing through holes 10a in the insulators 19, 20 and slots 11 in the plate 7, and screwing into a plate 12 beneath the plate 7. Openings 13, 14 in the plates 7. 12 permit passage of the armature 3. By slackening the screws 10 to move them in the slots 11 the relay may be centre stable (as shown), or one side stable. The contacts 15, 16 in their unoperated condition are stressed against upstanding posts 25 formed on the insulators 19, 20, and the position of the contacts 22 is adjustable by screws 27 threaded therein which engage parts 26 formed on the insulators 17, 18: The contact clamping means disclosed in Specifications 673,867 or 484,472 may be employed, and the permanent magnets used in the magnetic structure may be as disclosed in Specification 715,630.
Patent GB-1435851-A (GB)
Title: Seal assembly
IPC: F04D29/10
Filed: 1974-02-13
Abstract: 1435851 Shaft seals BORG-WARNER CORP 13 Feb 1974 [8 March 1973] 6608/74 Heading F2B In a cartridge (S) with an end face seal, as described in Specification 1,435,852, cooling fluid is circulated through chamber 125 and helical groove 34a. Impeller 128 has a screwthread 129. A pump shaft (20, Fig. 1, not shown) for a high temperature liquid pump, has a vapour trap (60). The leakage of cooling fluid through the end face seals is drained at valve (84). Fan (37) directs cooling air over ribs 35 which project radially from housing 33.
Patent GB-312972-A (GB)
Title: Improvements in or relating to burners used in connection with the burning of pulverised fuel
IPC: F23D1/00
Filed: 1928-03-03
Abstract: 312,972. Marston, H. A. March 3, 1928. Addition to 285,314. Pulverulent-fuel burners. - In the pulverulent-fuel burner of the parent Specification comprising a central fuel supply pipe b surrounded by a cylinder a<1> having tangential air or steam inlets a<3>, air or steam is introduced into the fuel pipe through ports a<11> in spiral projections b<1> from pipes b<6> which may be connected through valves a<4>, a<12> to the inlets a<3>, to an independent supply source, or to both these sources. The pipes a<6> lead to a circular passage a<9> in the back plate a<2> of the burner and the passage a<9> is connected to the ports a<11> by pipes a<10>. Additional air or steam may be admitted to ;he fuel pipe b through a pipe c mounted adjustably in eccentric bushes e<1>, e<2> and additional air may be drawn into the cylinder a<1> through ports d regulable by rotating an apertuped ring d<2>. The air or steam from the cylinder a<1> may issue through an opening a<8> formed with curved surfaces a<7> or through ports causing the streams to take circumferential and tangential paths.
Patent GB-727033-A (GB)
Title: Improvements in or relating to the manufacture of silica hydrosols
IPC: C01B33/143
Filed: 1952-06-18
Abstract: <PICT:0727033/III/1> A silica hydrosol is prepared by mixing an alkali metal silicate solution or alkaline silica hydrosol with an excess of acid to produce a mixture of silica hydrosol, alkali metal salt and acid, contacting said mixture with a cation exchange material adapted to remove the alkali metal ions and regenerate the acid to produce a mixture of silica hydrosol and acid substantially free from alkali metal ions, withdrawing said mixture of hydrosol and acid from the ion exchange zone and employing a substantial portion thereof to provide part of the acid required for the formation of the silica hydrosol, the residual portion of said withdrawn mixture being employed for product recovery.  The process is described in detail using sulphurous acid-as sulphur dioxide gas or liquid, or in aqueous solution-but acetic, propionic, butyric and chloracetic acids are also referred to as acids which may be removed from the product if desired, e.g. by solvent extraction with a solvent such as chloroform or a hydrocarbon oil which may be allowed to remain in the hydrosol. The ratio of recycled: product hydrosol may be between about 25 : 1 and 1 : 1.  Make-up acid and alkaline hydrosol or alkali metal silicate are added to produce a preferred pH of 2-5, desirably less than 4, before entering the exchange zone.  In the method illustrated, an acid mixture of sodium silicate and sulphurous acid passes through line 86 into exchange vessel 72 where most of the sodium ions are removed.  The resultant mixture is removed by line 74, and a proportion thereof recycled through line 76.  Make-up sulphur dioxide is added through line 82 into the recycle stream, and additional silicate through line 84, rapid mixing being effected in mixing zone 85.  The product may be removed through line 87, but if it is desired to produce a product of greater purity further quantities of sodium ions may be removed by means of cation exchange material in vessel 92.  The effluent may then pass into the stripper 96, where sulphur dioxide (which may be re-used) is removed with air or other gas such as natural gas.  Vessels 72a and 92a with the associated connections are used alternatively to vessels 72 and 92 whilst the exchange materials in the latter are being regenerated with acid.  The concentration of the sodium silicate solution should be such that there are not more than 260, preferably not more than 200 gm. of SiO2 per litre, and in the mixture of recycled hydrosol and added sodium silicate there should be not more than 150 gm. of SiO2 per litre.  The product may be used alone, or mixed with alumina hydrosol, gelled and dried, e.g. spray-dried to form spherical particles, as a catalyst or solid adsorbent.  The exchange material may, if desired, be used as an agitated slurry rather than as a fixed bed. It is stated that a hydrosol containing up to 15 per cent. SiO2 by weight can be obtained by the method of the invention.
Patent GB-163165-A (GB)
Title: Improvements in apparatus for thinning the points of twist drills
IPC: B24B3/24
Filed: 1920-03-05
Abstract: 163,165. Herbert, Sir A., and Cartwright, J. S. P. March 5, 1920. Twist drills, sharpening.-The point of a twist drill is thinned by a grinding-wheel A<4>, the drill being moved so that the leading faces of the cutting-edges are fed tangentially along the face of the grinding-wheel. The wheel is rotatably mounted in a standard A, and the drill F is mounted in a V-holder E, which is pivotally mounted, by means of a spigot D<2>, on a slide D; adjustment about the axis of the spigot allows the lip F<2> of the drill to be set parallel to the plane of the grinding-wheel. The slide D is mounted on a slide C, its line of movement being in the plane of the grinding-wheel and inclined to the horizontal; the weight of the slide D is supported by a counterpoise or by a spring D<3> mounted on a stud D<4> secured to the slide C. Movement of the slide D, by hand or by means of a lever or screw, feeds the drill tangentially along the grinding-wheel. The slide C is movable on a bracket B<5> in a direction parallel to the axis of the grinding-wheel; this feeds the drill against the acting flat face of the wheel. The bracket B<3> is carried by a slide B<3>, which is movable, by means of a hand-wheel B<4>, on a guide B in a direction radially of the grinding-wheel; this movement is for compensating for wear of the wheel and for variations of diameter of drills. The inclination of the line of movement of the slide B<3> may be adjusted for adjustment of the guide B about the axis of a spigot B<2> formed thereon and rotatably mounted in a boss A<2> formed on the frame A; the axis of the spigot is parallel to the axis of the grinding-wheel. The drill-holder has at one end a stop E<5> for the drill point, and at the other end an extension E<10> for supporting the drill shank; the flutes of the drill are located by a finger E<6> extending into the holder and adjustable along a slot E<7> in a rotatable disc E<8>, which may be clamped after setting by a screw E<9>. The peripheral face of the grinding-wheel may be employed instead of the flat face.
Patent GB-217293-A (GB)
Title: Improvements in change speed gear for self-propelled vehicles, boats, and the like
IPC: G05G9/10
Filed: 1923-03-09
Abstract: 217,293. Smith, A. G. March 9, 1923. Controlling variable-speed gearing by a plate 10 which slides laterally to select and longitudinally to operate the selected gear-clutch-operating lever 6. The two levers 6 project vertically through longitudinal slots in a fixed plate 11 upon which the plate 10 rests and slides. The levers 6 extend through two slots 12 in the plate 10, which slots taper in opposite directions. In either extreme lateral position, the plate 10 grips one or other of the levers 6, the other being free. Longitudinal motion then operates the selected striking lever. In the application to a vehicle, the latter motion by turning a cam lever 14 disconnects the main clutch 19 to facilitate the speed change. The plate 10 is controlled by a hand lever 20.
Patent GB-871797-A (GB)
Title: Improvements in the production of voluminous or bulky yarn
Inventor: RICHMOND ALFRED
IPC: D02G1/16
Filed: 1957-03-01
Abstract: 871,797. Finishing yarns. BRITISH CELANESE Ltd. Feb. 28, 1958 [March 1, 1957], No. 6876/57. Class 120(3) In a process for looping or bulking at least one multifilamentary yarn by subjection to a turbulent fluid stream e.g. as described in and/or using the apparatus of Specifications 790,911, 790,912, 790,913, 793,044, 871,798, the fluid is a hot (dry or moist) gas e.g. nitrogen or steam, at a temperature sufficiently high e.g. 120- 250 C., to soften the filaments and thereby modify the loop formation i.e. produce deep waves or arches rather than complete rings and reduce the twist required to lock or consolidate the loops. The yarn may be twisted or untwisted assemblies of continuous filaments e.g. of polyhexamethylene adipamide, polyaminocaproic acid, polyethylene terephthalate, cellulose triacetate or acetone-soluble acetate. In the apparatus shown, a jet unit 10 comprises a T- piece 11 having a limb 13 connected to a steam heater 14 and a double limb 12 in which is fitted a member 15 accommodating rings 16 of packing material and housing a yarn inlet member 17, the tip 18 of which is of double-conical form, and a Venturi tube 20, external flanges of which abut the member 15 and are secured by screwed collars 24 and 25: steam, which may pass through a gauze collar 27, enters the limb 12 through holes 26. Yarn 29 is fed from a stationary or rotatable package 30 (or a package on a double-twist spindle) by rollers 31, 32, and is taken-up as it leaves tube 20 by rollers 33, 34 (driven and/or dimensioned to rotate at lower peripheral speed than rollers 31, 32) delivering the looped yarn 29a over a guide rod 35 to winding apparatus comprising driving-drum 36, cheese 37 and traverse guide 38. The looped yarn may be taken-up on a twisting spindle and yarns which have been passed through a single jet unit may subsequently be separated or remain a composite doubled yarn.
Patent GB-131079-A (GB)
Title: Improvements in or relating to Carburetters for Internal-combustion Engines.
IPC: F02M9/02
Filed: 1918-04-24
Abstract: 131,079. Brown, C., and Brown & Barlow. April 24, 1918. Spray carburettors. - A transversely adjustable sliding throttle valve b is placed at a constricted portion of the main air passage a and, in its opening movement, is adapted to uncover a number of fuel orifices in a tube c placed diametrically across the air passage immediately in front of the throttle valve. The fuel orifices may be supplied through a restricted -orifice d to the space above which air may be admitted at e. The nozzle d may be submerged and the fuel orifices may be replaced by a slit. The throttle valve is of such a form that, in its fully open position, it does not interfere with the stream line or other internal form of the air passage.
Patent GB-141866-A (GB)
Title: Improvements in motor wheel attachments for cycles, and the like
IPC: B62M7/12
Filed: 1919-03-19
Abstract: 141,866. Sheppee, F. H., and Jowitt. S. G. March 19, 1919. Transmission gear of invariable ratio; disconnectible gearing.-This is an attachment especially suitable for the conversion of pedal cycles and the like into motor cycles. Fig. 3 is aside view on a larger scale than the section shown in Fig. 2. The tubular extension e from the engine crank case forms a bearing on its inside for the crank shaft f and on the outside for the road wheel, and is carried in the ends of the cycle forks g. A fly-wheel is arranged on the side of the road wheel remote from the engine. A friction rim o on the road wheel is driven by a pulley n on a short non- rotary countershaft or stud, which pulley is driven by a chain and toothed gearing from the crankshaft. The stud is mounted at the end of a lever q fulcrumed in a bracket q<2> secured to the wheel fork by means of a sleeve containing the bearing for the chain-wheel shaft l. A toothed wheel on the chain-wheel shaft gears with a second toothed wheel on the friction pulley. The lever is acted on by a spring p tending to press the friction pulley against the wheel rim. an operating wire u being provided for withdrawing it.
Patent GB-793738-A (GB)
Title: Improvements in and relating to duplicators
Inventor: ZEUTHEN KARL GUSTAV
IPC: B41L13/04
Filed: 1956-03-05
Abstract: 793,738. Stencils. ZEUTHEN & AAGAARD AKTIECELAKAB. March 5, 1956, No. 6921/56. Class 100(2) In a duplicator of the type having at least two rollers and a stencil carrier running in a closed path around them, the carrier ensures synchronization between the driving roller and stencil and comprises at least one band of flexible material inlaid with threads of inextensible but flexible material, by preference thin steel threads twisted together. The stencil carier comprises two endless bands 4 having spaced ribs 5, Figs. 3 and 4. The bands are of flexible material such as organic plastic (e.g. nylon) and inlaid therein are wires 6 composed of thin threads of steel or other inextensible material. For attachment to each band there is provided a stencil holder 12, Fig. 6, comprising tabs 13, 14 adapted to extend through openings 15, 16 in one of the ribs and having holes 17, 18, through which is passed a locking pin 19 having notches 20, 21, the pin 19 lying in a hole or groove in the rib, part of the rib in the latter case being cut away. Stencilling-apparatus. The rollers 7, 8, Fig. 4, of a stencil duplicator are provided at their ends with indentations to receive the ribs 5 on the stencil carrier, or with studs to seat in holes in the bands.
Patent GB-726233-A (GB)
Title: Improvements relating to pneumatic conveyors
Inventor: BAKER DONALD ERNEST
IPC: B65G53/46
Filed: 1953-03-13
Abstract: 726,233. Pneumatic conveyers. SIMON, Ltd., H. Feb. 18, 1954 [March 13, 1953], No. 6946/53. Class 78 (1). Material is fed into a pneumatic conveying line h, i from a hopper e by a rotor a, the pockets d of which (1) come successively into alignment with ports f, g in the casing c through which the air stream passes, and (2) are sealed by spring-loaded metal, or other strips, k inserted in the tips of their radial divisions j and bearing against the casing. A port m is provided in the casing to bring the air in each pocket substantially to atmospheric or subatmospheric pressure before the pocket is in position to receive material from the hopper.
Patent GB-1493205-A (GB)
Title: Ducted fan arrangement
IPC: F04D25/16
Filed: 1976-02-18
Abstract: 1493205 Ducted fans H R HILL 18 Feb 1976 [19 Feb 1975] 6948/75 Heading F1C In a lift/propulsion system for an air cushion vehicle a portion of the air sucked into the horizontal chamber 1 of a ducted fan is directed vertically downwards into a plenum chamber to provide lift, by a duct 6 having a circular intake symmetrically placed relative to the fan axis so that loading on the fan blocks is independent of their circumferential position, horizontal thrust being provided by the flow 4 of the remainder of the air. The intake to chamber 1 may be horizontal (as shown), oblique to the horizontal, Fig. 2 (not shown), or vertical, Fig. 3 (not shown).