baber/WOPTO huggingface dataset:
Patent GB-197967-A (GB)
Title: Improvement in sound reproducing or recording machines
IPC: G10K13/00
Filed: 1923-05-22
Abstract: 197,967. Lott, C. May 22, 1923. Cases with internal horns; tone-arms. - A gramophone or the like of the kind having two or more internal horns extending from the rear of the casing to the front for conducting the sound waves in separate groups from the tone-arm, is provided with a partition 26, parallel, or substantially parallel, to the rear wall of the casing, to form a chamber 24 in which are arranged soundconduits 38, 39 leading from the tone-arm to apertures 34, 35 in the partition communicating with the horns 21, 22. One of the conduits is short and the other 39, Fig. 2, is long and undulating. The horns are formed by outer curved walls 31, 32, an inner curved wall 27 and upper and lower curved walls 29, 30, Fig. 4. The tonearm is divided longitudinally by a partition 10, Fig. 1. Multiple-diaphragm sound-boxes.-The Specification as open to inspection under Sect. 91 (3) (a) comprises also a double sound-box 4, Fig. 2 (Cancelled), having two diaphragms 8, 9 connected by arms 6, 7 to a single-needle holder 5. The diaphragms may be formed to have different natural frequencies by making them of different sizes, masses, or materials. Suitable materials are mica, ebonite, celluloid, and wood. Weights mav be attached either to the diaphragms or to the arms 6, 7 for the same purpose. This subjectmatter does not appear in the Specification as accepted.
Patent GB-528767-A (GB)
Title: Boot heel support for motorists
IPC: B60N3/06
Filed: 1939-05-06
Abstract: 528,767. Controlling motor vehicles. POTTER, T. J. May 6, 1939, No. 13542. [Class 79 (v)] A heel rest for use on motor vehicles comprises a base plate 1, a pair of arms 2 connected to 1 by a vertical pivot or bolt 4, and a heel plate 3 connected to the arms 2 by a horizontal pivot bolt 5. The heel plate 3 is shaped to fit a bootheel and is provided with spring arms 6 to assist in keeping the heel in place. The base plate 1 is secured to the floor at a suitable distance from the brake or other pedal to be controlled.
Patent GB-542820-A (GB)
Title: Improvements in or relating to television systems
IPC: H04N5/202
Filed: 1940-08-28
Abstract: 542,820. Television contrast amplifying systems. BAIRD TELEVISION, Ltd. Aug. 28, 1940, No. 13573. Convention date, Aug. 29, 1939. [Classes 40 (iii) and 40 (v)] A contrast amplifier for television reception for expanding the contrast range of an image on the screen of a cathode-ray tube is adjusted to produce a linear overall response with a γ greater than unity. In one arrangement, Fig. 3, negative bias is applied to the grid of a triode 1 through a D.C. restoring device D, and television signals in which positive represents white are fed to the input terminal 3. The bias may be chosen so that, in addition to the desired contrast amplification being obtained, the negative synchronizing pulses are cut off. In another arrangement, Fig. 4, two valves 5, 6 are connected in series, resistances 11, 12 are inserted in their cathode circuits, the anode of valve 5 is connected by a condenser 13 to the grid of valve 6 which is connected by a resistance 14 to its cathode, and a diode 7 with a resistance 10 is inserted between the cathodes. Input of positive polarity with its D.C. component is supplied to terminal 8 of grid of valve 5 and output is taken from terminal 9 of anode of valve 6. For weak inputs the diode is non- conductive and negative feed back keeps the amplification low. When the signal increases sufficiently to make the diode conductive, the effective resistance in the cathode circuit of valve 5 and therefore negative feed back is reduced and amplification increased. The resistance 10 controls the change in amplification without affecting the transition level. The input circuit of valve 5 may have the biasing arrangement of Fig. 3.
Patent GB-257650-A (GB)
Title: Improvements in spoked wheels of metal
IPC: B21D53/26
Filed: 1925-05-26
Abstract: 257,650. Trevitt, F. J. May 26, 1925. Whells and pulleys.-Relates to wheels and pulleys in which tubular spokes, of round or oval section, are formed with shouldered portions or ribs abutting the rim and hub elements, and consists in forming the ribs by endwise pressure on the spoke whilst it is supported by internal and external dies, except at the positions where the ribs are to be formed. The spoke D, Fig. 8 (of tapered form), is supported by an internal mandrel G and clamped intermediate its ends by a tool H formed in two parts h, h<1> clamped by bolts j. The ends of the spoke are engaged by fixed and movable tools M, J respectively, leaving spaces P, N into which the metal of the spoke is bulged and squeezed flat when pressure is applied to the tool J. The mandrel G is shown supported by a helical spring m. The outer end of the spoke. after assemblage through the rim A, Fig. 3, is flanged over together with a closing-cap S. The hub is formed of two stampings a, b with overlapping flanged portions d, e respectively. The edge f of the flange d may be folded over into a recess g of the part b, or may be extended to form an integral brake-drum. In a modification the extreme outer end of the spoke is also formed with a rib in which the closure T, Fig. 5 is received.
Patent GB-246366-A (GB)
Title: Improvements relating to brushes, brooms, swabs, mops or like implements
IPC: B25G3/38
Filed: 1925-05-26
Abstract: 246,366. Nielsen, L. H. May 26, 1925. Hinged handles. - In a brush, broom, swab, mop, &c. of the kind having the head so connected to the handle as to be angularly ad. justable when the handle is turned, the handle has a screwthreaded bolt fixed to one end which engages a cylindrical nut located in a cylindrical recess in the head and passes through a slotted bent or curved metal recess secured to the head and bearing on the end of the handle. The threaded bolt 2 rigidly secured in the end of the handle 1 screws through a cylindrical nut 5 placed in a recess 4 in the brush head 3, which has a slot 6 with diverging end walls leading to the recess 4. The bolt 2 passes through guiding slots in a flat plate 10 and arcuate plate 11 secured to the brush. Another plate 12 on the bolt 2 has a concave face bearing against the plate 11. Fig. 10 shows a modification of the plate 11 adapted to secure the handle rigidly in three positions.
Patent GB-871630-A (GB)
Title: An 8-hydroxy quinoline derivative
Inventor: FROST GEORGE BAXTER
IPC: C07D215/26
Filed: 1959-04-23
Abstract: The invention comprises the salt or saltlike complex di-(8-hydroxyquinoline)-p-aminosalicylate and the preparation thereof by reacting 8-hydroxyquinoline with p-aminosalicylic acid. Preferably 2 mols of the 8-hydroxyquinoline are reacted with 1 mol of the acid in a solvent such as water or an alkanol. It is stated that if the reaction is effected in water then heating is generally necessary but that the temperature should not be allowed to exceed 50 DEG C. since above this the compound tends to break down to a mono-8-hydroxyquinoline - p - aminosalicylate. Examples are given.ALSO:Pharmaceutical preparations comprise the salt or salt-like complex di - (8 - hydroxyquinoline) - p - aminosalicylate and a pharmaceutical carrier.  They may take the form of powders, ointments, salves, lotions, emulsions or solutions, desirably for topical application, and they preferably contain from 0.1 to 1.0% by weight of the complex.  They may also contain other therapeutically active substances.  An example of an ointment preparation is given.
Patent GB-1147608-A (GB)
Title: Flux life extender
Inventor: SHANKLIN DUNBAR LANCASTER
IPC: B23K35/36
Filed: 1966-03-29
Abstract: 1,147,608. Soldering. D. L. SHANKLIN. 29 March, 1966 [19 April, 1965], No. 13915/66. Heading B3R. [Also in Division C7] The life of a solder flux is extended by the addition of granules of activated alumina, silica gel or activated aluminosilicate having a surface area of at least 100 square metres per gm. and a volume of available pores of at least 0À15 c.c. per gm. The flux may be a zincammonium chloride flux and at least 6% by volume or at least 1% by weight of the granules is added. The granules are preferably spherical and coarser than 100 mesh US e.g.  inch maximum size and they may be pretreated either by treating with an aqueous solution containing alkali metal chlorides and/or alkaline earth metal chlorides and/or ammonium chlorides, or by immersion in a melt of the chlorides. The pretreating solution or melt preferably contains over 30% NH 4 Cl. The flux may also contain NaCl, KCl, MgCl 2 , CaCl 2 , PbCl 2  and ZnO. The Specification discloses a large number of different flux compositions containing the flux-life extenders. The precharged granules supply the necessary NH 4 Cl to the flux which without these granules would lose the NH 4 Cl due to volatilization. The silica gel granules are made by mixing Na 2 SiO 3  SH 2 O with the stoichiometric amount of powdered NH 4 Cl in the dry state and reacting the mixture below 110 F. The solder flux is used in the canning industry for the conventional soldering of cans using a Sn-Pb solder containing 2-4% Sn. A solder roll is mounted in a solder bath and the flux is placed on top of the molten solder.
Patent GB-919983-A (GB)
Title: Improvements in and relating to a needle or roller bearing cage and process of manufacturing same
IPC: F16C33/54
Filed: 1960-04-21
Abstract: 919,983. Roller bearings. ROULEMENTS A AIGUILLES S.A. DES, and PITNER, A. April 21, 1960 [June 15, 1959], No. 13972/60. Class 12 (1). A cage for a roller bearing is formed from two blanks cut from sheet metal, each blank comprising an annulus having radially-extending tabs which are folded to form longitudinal bars which serve as spacers for the rollers. The rollers are prevented from escaping outwardly from the cage by the tabs being increased in width at 3 to form edges 5 which engage the rollers, and the parallel edges of the tabs 2 prevent the rollers from escaping inwardly. The tabs may extend outwardly, or inwardly, or both outwardly and inwardly, from the annulus. The blanks may be connected to form a double-ended cage by welding &c. the ends 6, 6<SP>1</SP>, Fig. 3, by clips 8, Fig. 5, and by a continuous ring 9, Fig. 6, which divides the aperture to accommodate two circular rows of rollers.
Patent GB-345869-A (GB)
Title: Improvements in swimming appliances
IPC: A63B31/14
Filed: 1930-05-07
Abstract: 345,869. Swimming appliances. SCHMITT, G. G. E., 23, Holmstedter Strasse, Wilmersdorf, Berlin. May 7, 1930, No. 14039. [Class 77.] The hinged thrust-plates 13, 14, 15 of a swimming appliance are attached to longitudinal leg straps 2 which pass under the soles of the feet. To prevent the straps 2 slipping in the direction of the heels, the edges nearer the heels are drawn more tightly than the edges nearer the toes. The straps 2 are supported by transverse leg straps 1, 3, 4, a waist strap 6 and shoulder straps 8, 9. The size of the thrust plates is graduated, the one nearest the foot being smallest, and suitable stops are provided to prevent the plates turning through more than a right-angle. The appliance is used in combination with a swimming glove carrying a hinged plate f. The glove is large enough to allow the water to circulate freely through the finger portions which are open to allow the finger ends to protrude.
Patent GB-856474-A (GB)
Title: Improvements in or relating to releasable frame connecting means for shelving, etc
IPC: A47B57/50
Filed: 1959-04-24
Abstract: 856,474. Furniture joints; shelves. NORDVERK A.B. April 24, 1959 [April 25, 1958], No. 14066/59. Classes 52(1) and 52(2) A rack or shelf structure has vertical posts 1 and cross beams 2 formed as channel members, the flanges of each post 1 being provided with a row of obliquely disposed keyhole slots 5 and an end plate 6 is welded to each end of cross beam 2 and has a similar oblique keyhole slot 7, the apertures 5, 7 being disposed adjacent one another, when the structure is erected, but extending in opposite directions so that their wider portions 8, 9 can receive the heads 81, 91 of a union member 10 to secure the parts together. When the cross beam is loaded it is forced obliquely downward so that end portions of the end plate 6 engage firmly with bent portions of posts 1.
Patent GB-330650-A (GB)
Title: Improved process for separating magnesium chloride from its aqueous solutions and for obtaining anhydrous magnesium chloride
IPC: C01F5/30
Filed: 1929-02-15
Abstract: 330,650. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Feb. 15, 1929. Divided on 329,032. Ammonium compounds containing metals. - The compound MgCl2.6NH3 is precipitated from aqueous solutions of magnesium chloride containing ammonium chloride by addition of ammonia, preferably in the form of gas. The precipitation is increased by cooling to temperatures of -30‹ C. The compound is decomposed by heating to about 500‹ C. yielding anhydrous magnesium chloride.
Patent GB-905572-A (GB)
Title: Valves for controlling fluid flow
IPC: B66F3/42
Filed: 1961-04-19
Abstract: 905,572. Valves. CLARK EQUIPMENT CO. April 19, 1961 [May 5, 1960], No. 14085/61. Class 135. A regulating valve for controlling the flow of fluid from the motor of a hoist, comprises a valve sleeve 44, closed at one end and provided with axially spaced circumferential openings 48, 50, the openings 50 may be arranged as two sets of staggered openings 50, 52. A valve member 44 is located in the sleeve and is loaded by a spring 70 towards the closed end of the sleeve. The valve member is provided with a series of openings 56 and carries a plate 60 having a fixed orifice 62. The end of the valve member is provided with an orifice 80 and a spring-loaded plate 82 provided with a small orifice 88. In operation, fluid supplied to the hoist flows from an inlet 32 and through openings 48 and 56, 50 and 52 in an unrestricted manner to a motor port 46, the valve member 44 being in the position shown. When the hoist is being lowered, fluid from the port 46 flows through ports 50, 52 and 56 to a chamber 54 and through orifice 80 to a chamber 78, by lifting a plate 82, to cause the valve member 44 to move against the spring loading 70. Such movement of the valve member 44 reduces the area of the openings 52, 50 and 48 and continues until the pressure in the chamber 54 is constant in response to the pressure drop required by the fixed orifice 62. In practice, the member 44 moves past this position and moves back to the required position by slow leakage from the chamber 78 through the small orifice 88, thus preventing hunting. The rate of descent of the hoist under the control of such a valve varies inversely with the load on the hoist.
Patent GB-1433751-A (GB)
Title: Building elements
IPC: E04C2/38
Filed: 1972-03-24
Abstract: 1433751 Building panels R WALKER 9 April 1973 [24 March 1972] 14088/72 Heading E1B A storey high plastics wall panel has a rearwardly projecting peripheral lip 18, the front surface being formed with an ornamental relief pattern which also strengthens the panel. The lip 18 is reinforced by a timber or hollow metal strip held in place by an angle section strip. Alternatively the lip may be reinforced by an angle iron. The panel may be provided with door or window openings. The panels are secured in a building by rag bolts. A plastic waterproof sealing compound is introduced between adjacent panels. The lips 18 may comprise separate members secured to the sheet 10.
Patent GB-183786-A (GB)
Title: Chocolate coated ice cream
IPC: A23G9/24
Filed: 1922-05-19
Abstract: 183,786. Govett, S. F. May 19, 1922. Grant of Patent refused. Confectionery; ice-cream preparations.-Hard frozen ice-cream is coated with chocolate, e.g. by dipping in warm chocolate and placing in cold storage.
Patent GB-1111335-A (GB)
Title: Apparatus for the hot-topping of ingot moulds
Inventor: EMMOTT JOSEPH GORDON
IPC: B22D7/10
Filed: 1964-07-17
Abstract: 1,111,335. Clamps. FOSECO TRADING A.G. 7 July, 1965 [17 July, 1964], No. 14156/ 67. Divided out of 1,111,334. Heading E2B. [Also in Division B3] The clips shown in Figs. 1-6 of the original Specification are described and claimed.
Patent GB-571609-A (GB)
Title: Improvements in measuring instruments
IPC: G01B5/24
Filed: 1943-09-06
Abstract: 571,609. Measuring angles &c. HOLMES, H. Sept. 6, 1943, No. 14534. [Class 97 (iii)] [Also in Group XIX] An instrument primarily for measuring angles comprises a metal bar 1, a pair of slides 3, 4 having rollers 3<1>, 4<1> and an additional pair of slides 2, 5 provided with extensions 7 upon which are mounted brackets 8 having rollers 2<1>, 5<1>, the brackets 8 being adjustable to and from the bar 1. Locking means for the slides and brackets comprises set-screws 9 and locking plates 10. In operation the pairs of rollers are set to the required angle and the test piece P placed with its edge against the bar and the angled surfaces of the piece P tested against the four rollers by means of feeler gauges.
Patent GB-1456352-A (GB)
Title: Cryostatic device
IPC: G01N21/03
Filed: 1975-04-09
Abstract: 1456352 Cryostats COMMISSARIAT A L'ENERGIE ATOMIQUE 9 April 1975 [22 April 1974] 14542/75 Headings F4H and F4U [Also in Division G2] A cryostatic device for use in low-temperature spectrometry comprises a double-walled opentopped vessel 2 containing a cryogenic liquid bath 38, a mirror M which supports a sample 6 and is immersed in the said liquid, and a housing E which surrounds the vessel 2 and includes at at least one open aperture 10 located below the level of the open top of the vessel 2. The sample and a mirror M are supported by a suspension carriage 8. Reflecting surfaces 12, 14, 16, 18, 20, 22 are provided in the housing for use in infra-red spectrometry experiments. The housing also includes a heat reflecting lining 26 and is provided with a port 28 having a glove 32, a port 30 fitted with a manipulating device 34, and a transparent viewing port 36. A liquefied gas inlet pipe 40, Fig. 2 is integral with the double-walls of the vessel. A calibrated leak valve 50 is provided beneath the inner wall of the vessel thereby permitting controlled expansion of the liquid in the bath 38 into a false bottom. The gas so formed is drawn through a duct 52 by a pumping system. A thermostat 54 whose resistance is measured by means of an electronic device 56 serves to measure and maintain constant the level of liquid within the vessel. The vessel may also include a resistance heating element 44.
Patent GB-942410-A (GB)
Title: Improvements in and relating to overspeed governors
Inventor: HIMS HERBERT EDWIN CHARLES
IPC: G05D13/08
Filed: 1961-04-21
Abstract: 942,410. Speed governors; fluid-pressure servomotor systems. BRITISH SHIP RESEARCH ASSOCIATION. April 27, 1962 [April 21, 1961],No. 14562/61. Headings G3B and G3P. An overspeed governor for limiting the maximum speed of a rotary member 3 comprises a rocking member 2 secured to a hollow pin A pivoted to the rotary member 3 on a pivot axis in a plane at right angles to the longitudinal axis of the rotary member 3, the rocking member 2 being arranged such that the centrifugal forces acting on the rocking member 2 during rotation are out of equilibrium about the pin A so that the rocking member 2 is rotated a small angle about the pivot axis against the action of at least one spring E, and a pressure fluid duct D for connection to a relay wherein the arrangement is such that when the rotary member 3 is rotated below a predetermined speed a rotary valve constituting a pressure fluid exit from the duct D is closed but at or above the predetermined speed the rotary member rocks to open the rotary valve and hence the exit from the pressure fluid duct D so that the relay can be arranged to reduce or cut off a power supply for rotating the rotary member 3 or to operate warning means. In operation at or below normal running speed the couple on the rocking member 2 due to the forces exerted by the springs E exceeds that due to the centrifugal force exerted by the weights 8 and a stop 6 on the member 2 is pressed against the shaft or rotary member 3. Under normal running conditions each port in a fixed sleeve B, in which the pin A freely rotates, is separated from its counterpart in the hollow pin A. In the tripped position these ports are aligned and oil can escape through the hollow bore of the pin A from a relay through a small axial duct D in the shaft 3. In an alternative arrangement shown in Fig. 8 the longitudinal axis of a rotary-member 11 is indicated at 12. An out-of-balance member 13 is pivoted on an axis 14 within a cage 15 defined by the rotary member 11. The hollow pivot 16 forms one member of a rotary valve and is connected by a duct 17 to the relay through the other member of the rotary valve formed by a sleeve 18 on the member 13. The rotary member 11 is provided with a stop 19 for the member 13 and the helical compression spring 20 holds a knife edged member 22 against the sleeve 18. A trip-speed adjusting screw 24 is provided on the member 13.
Patent GB-458671-A (GB)
Title: Improvements in and relating to rotating field synchronous electric motors with asynchronous starting arrangements
IPC: H02K19/10
Filed: 1935-05-18
Abstract: 458,671. Alternating-current motors. SIEMENS - SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. May 18, 1935, No. 14639. Convention date, May 18, 1934. [Class 35] A rotating field synchronous motor of the type comprising an unwound rotor of magnet steel is run between starting and normal running at a voltage greater than that necessary to magnetize the motor to the strength at which it is designed to run. For this purpose the field winding 1 may be fed through an auto-transformer 3 ; the machine is started with the sliding contacts a at the lowest position, they are then moved up to the position shown, and finally to the position b, so that the machine runs at line voltage. The change may also be effected through tappings on the field winding, or by connecting the windings in delta for magnetizing and in star for running. The rotor may be solid or laminated, and may be provided with a squirrel cage starting winding, or may be coated with copper for the same purpose. A formula is given connecting the pole division, air gap, and remanence and coercive force of the rotor.
Patent GB-611975-A (GB)
Title: Improved power transmission means
IPC: A63H30/00
Filed: 1946-05-15
Abstract: 611,975. Flexible shafts. MIDGLEY, A. M. May 15,. 1946, No. 14642. [Class 80 (ii)] [Also in Group XV] Means for transmitting power from one point to another remote therefrom, comprises a cable which is flexible in the direction of its length containing conductors for the transmission of electrical power, and being sufficiently rigid to resist torsion so that it may be employed to transmit mechanical rotary power. The cable consists of two insulated fine wires bound together by plastic or other means and a coupling at each end. In application to a toy motor car, electrical energy is conveyed from a battery r to an electric motor a on the car via a switch and the flexible cable. The motor is geared to the driving wheels b, thus providing the propelling means. The front of the car is supported by two wheels c carried by a bracket d pivoted at e and connected by gearing f to a steering shaft g. One end of the flexible cable is coupled to the shaft g and the other end is coupled to a member o which is geared to a hand-wheel t mounted on the battery casing. Rotary movement of the hand-wheel t is conveyed via the cable to the steering shaft g.