baber/WOPTO huggingface dataset:
Patent GB-996563-A (GB)
Title: Improvements in or relating to an acid resisting porous silicate
IPC: C04B28/26
Filed: 1962-01-29
Abstract: An acid resisting porous silicate is obtained by interaction and setting of a sodium or potassium water glass solution, an inert inorganic filler, a hardening agent, hydrogen peroxide as oxygen-liberating agent, elementary iron and a copolymer containing units, some of which are units of the methyl ester of an ethylenic acid and the others of which are units of the sodium salt of the ethylenic carboxylic acid. A copolymer of sodium methacrylate and methyl methacrylate, containing polymethyl methacrylate is suitable. The inert filler is prepared as a flour by grinding waste chemical stone-ware, fireclay bricks, andesite or granite. Using ball mills with steel grinding medici a quantity of elementary iron passes into the flour. In an example, powdered andesite containing finely divided iron and sodium silico-fluoride (as hardener) is mixed with a water-glass solution containing hydrogen peroxide and sodium methacrylate-methyl methacrylate copolymer. The mixture is poured into moulds where it expands and hardens.  Other specified setting agents are sulphochlorides and esters of fatty acids or glycerine.
Patent GB-717116-A (GB)
Title: Improvements relating to torque and strain indicators
IPC: G01L3/14
Filed: 1950-02-08
Abstract: 717,116. Dynamometers. WERNER, W. A. P. May 8, 1951 [Feb. 8, 1950], No; 3302/50. Class 106 (2) A rotary transmission dynamometer comprises a drive shaft a, Fig.<SP>1</SP>, coupled to a driven shaft b through spring loaded coupling members housed within a sleeve fixed to the drive shaft, and a second sleeve mounted for axial movement on the driven shaft, the two sleeves being urged together by a spring so that the cam shaped faces interfit at c<SP>4</SP>. Relative movement between the drive and driven shafts causes the cam shaped faces to separate at c<SP>4</SP> and impart axial movement to the driven sleeve which may be connected via a suitable linkage to a dial indicator as shown in Fig. 1. Fig 7 shows one of the coupling members recessed to house the ends of springs a3, Fig. 4 .  The coupling members are arranged as shown in Fig. 3 within the sleeve c which is fastened at c<SP>1</SP> to the drive shaft flange a<SP>1</SP>. The second sleeve c<SP>2</SP> is fastened at c<SP>3</SP> to the driven shaft flange b<SP>8</SP> and spring urged by b<SP>6</SP> into contact with the sleeve c<SP>1</SP> at c<SP>4</SP>. Axial movement of the flange c<SP>2</SP> resulting from displacement of the faces c<SP>4</SP> is detected by a fork and lever arrangement d, shown'in Fig. 9. A sliding bolt d' held between supports d' transmits the axial movement of the flange c<SP>2</SP> and fork to a lever pivoted at d<SP>8</SP>. The end of the lever is provided with a quadrant d<SP>9</SP> and a pointer d<SP>11</SP>. Electrical contacts d<SP>17</SP>, Fig. 9, and d<SP>18</SP>, Fig. .1) are provided for operating an alarm cr indicator to give warning of overload. In a modification shown in Fig. 12 a second indicator d<SP>16</SP> is provided to show angle of twist in the shaft under test while the dial d<SP>15</SP> gives an indication of the power being transmitted through the shaft and if desired, the revolutions per minute by means of a second pointer in the dial d<SP>15</SP> which may be of any known form. The angle of twist indicator operates in similar fashion to the dial d<SP>15</SP> already described except that the sleeve c<SP>21</SP> extends the length of the shaft and is designed to fit freely and co-axially around the shaft thus allowing relative movement to take place under load conditions between the sleeve c<SP>21</SP> and the second sleeve c<SP>22</SP> at the interfitting facesc<SP>24</SP>.
Patent GB-577276-A (GB)
Title: Improvements in radio blind-landing arrangements
IPC: G01S1/02
Filed: 1940-02-23
Abstract: 577,276. Directive wireless signalling. STANDARD TELEPHONES & CABLES, Ltd., EARP, C. W., and SAMSON, G. G. Feb. 23,1940, No. 3432. [Class 40 (v)] In a blind-landing system in which the glide path is determined by the field strength ratio between two overlapping beams, the respective aerials are so spaced apart that the glide path reaches the ground in front of them. For instance, the usual landing-line L1, Fig. 1, between two overlapping beams E and A is displaced by offsetting one aerial P, shown in plan in Fig. 3, by a distance S3 from the position O of the other aerial and by giving the beam from P an horizontal inclination to the glide path. The locus of the intersection of points of equal field-strength along the two beams will then be along the line L2 shown in elevation in Fig. 4, and will reach the ground well in front of both aerials so as to avoid any danger of collision. Alternatively one of the aerials may be set back from the other along the line of the glide path. The slope of the landing line can be adjusted, say from L1 to L4 or L5, Fig. 1, to suit different types of aircraft, by adjusting the relative fieldstrengths of the radiated beams ; or the same effect can be secured by regulating the gain of the amplifiers, or the zero of the indicator, used in reception. The two fields may be radiated at different frequencies, or one carrier may be modulated with different signals. To avoid phase interference, the carrier is preferably eliminated, the side-bands only being radiated. The landing- line may be combined with an approach path formed by overlapping beams ; one of these may be used for both purposes, a single carrier-wave transmitter supplying the whole system. Modulation may be effected in the way described in Specification 567,967.
Patent GB-430185-A (GB)
Title: An improved teat-fitment for babies feeding bottles
IPC: A61J11/00
Filed: 1934-02-02
Abstract: 430,185. Feeding bottles. SCARBOROUGH, G. R., The Vineries, Cosby, near Leicester. Feb. 2, 1934, No. 3437. [Class 125 (i)] A teat for a feeding- bottle is provided at its upper end on the inside with a hollow rubber member, Fig. 1, having four perforations A and an indentation B opposite the hole in the teat C, Fig. 2. It is stated to act as a valve, milk passing through the holes A and between the member and teat. Air is admitted to the bottle by the ordinary valve.
Patent GB-720679-A (GB)
Title: Improvements in or relating to intermittent film feeding mechanism
IPC: G03B1/22
Filed: 1953-02-06
Abstract: 720,679. Kinematograph apparatus. KODAK, Ltd. Feb. 6, 1953 [Feb. 12, 1952], No. 3472/53. Class 97 (1). An intermittent feed mechanism comprises a claw 22 at one end of an arm which extends laterally to one side of the film path, is pivoted at its other end, is acted on at an intermediate point by a cam to produce the feed movements and carries an additional claw 61, on a flexible member 60, guided in line with the perforations of the film, for example by the walls of the slot 65 through which both claws operate. In the embodiment described, the driving mechanism is as described in Specification 670,921. The member 60 may be of spring steel or nylon.
Patent GB-1415095-A (GB)
Title: Sealing assemblies
IPC: F16J15/40
Filed: 1973-01-23
Abstract: 1415095 Sealing assembly DECCA Ltd 22 Nov 1973 [23 Jan 1973] 3486/73 Heading F2B A sealing assembly for use between a region 3 at high vacuum and a region 2 containing a fluid at working pressure comprises a rotary shaft 1, a sealing element 33 encircling the shaft, a first seal including a helical passage 34 which is defined between the element 33 and the shaft, a lip seal 30 encircling the shaft and shaft along the axis of the shaft from the first seal on the working pressure side thereof, a lip seal 31 encircling the shaft between the first seal and the seal 30, means for applying sealing fluid to the shaft between the lip seals, a housing 32 which holds the seals and sealing element, the shaft protruding through a bore in the housing, and a chamber 38 for collecting any leakage of sealing fluid when the shaft is stationary, the chamber being located in the housing on the high vacuum side of the sealing element. As described sealing fluid is fed via a passage 37 and an aperture 36 in a disc 35 between the lip seals. A cover 39 retains any leaked fluid within a space 38 and a part 40 traps any sealing fluid which has leaked up the shaft and has been thrown into this part by a thrower 41.
Patent GB-242835-A (GB)
Title: Improvements relating to reinforced concrete floors and the like
IPC: E04B5/40
Filed: 1925-02-07
Abstract: 242,835. Harris, H. E. Feb. 7, 1925. Joist floors with concrete filling; reinforcedconcrete walls.-The floor concrete is reinforced' by sheets of expanded metal A formed with ribs B and with the ends D bent up and resting on the flanges of the joists so that the main portion of the reinforcement is flush with or below the lower faces of the joists. Light meshwork E may be supported beneath the expanded metal. A similar construction is applicable to walls.
Patent GB-524650-A (GB)
Title: Improvements in or relating to door closing devices
IPC: E05F3/02
Filed: 1939-02-02
Abstract: 524,650. Door-closing appliances. ADAMS & SON, Ltd., J., WEBBERLEY, J. A., KELTING, G., and READE, C. Feb. 2, 1939, No. 3554. [Class 65 (i)] In a door closer of the spring and fluid check type, the spring 23 acts on a lever 12 carried by the door pivot 10, and this leverengages by a slot 13 a lever 14 pivoted to a fixed pin 15 and to a crosshead 17 on the piston rods 18 of the check. The spring acts on the lever 12 by means of an offset groove 25 in its guide rod engaging a crankpin 22 on the lever. When the door opens and compresses 23, lever 14 is moved by one or more auxiliary springs 21 to set the check, and when the door closes, lever 12 actuates 14 to bring the check into action and compress the springs 21.
Patent GB-751235-A (GB)
Title: Improvements relating to electric control apparatus
IPC: H02P9/24
Filed: 1954-02-08
Abstract: 751,235. Starting prime-movers; supply systems depending on variable speed generators. SIBA-ELEKTRIK GES. Feb. 8, 1954 [Sept. 26, 1953], No. 3578/54. Class 38 (4). [Also in Group XXXVII] The generator cut-out C, vibratory voltage regulator B and starting motor relay D of a motor vehicle, preferably one having a combined engine-starting motor and generator, are all generally similar in their magnetic and mechanical construction and differ only in respect of their windings and contacts. The three devices may be mounted side by side on a pedestal 30 and enclosed by a cover 48. Each device may comprise an L-shaped armature 31 connected by a slotted spring strip 32 to one limb of a Z-shaped yoke 33, the other limb of which carries the operating coil 39-41 of the device. The moving contacts of the devices are carried by spring strips secured to the vertical limbs of the armatures. In the case of the starting relay D, current is led directly to the moving contact through a heavy flexible cable jumper to avoid passage of the starting motor current through the slotted spring strip 32.
Patent GB-751977-A (GB)
Title: Improvements in or relating to aerodynes
IPC: B64D37/12
Filed: 1954-02-08
Abstract: 751,977. Aircraft fuel tanks. COOKE, W. D. June 2, 1954 [Feb. 8, 1954], No. 3630/54. Class 4. An aerodyne comprises a glider carrying the crew and useful load, and subsidiary wings attached to the glider carrying substantially the whole of the fuel and the engines, and which are detachable in flight leaving the aerodyne free to descend as a glider. In Fig. 1, the fuselage 1 is provided with main wings 2 fitted with fins 3, rudders 4, ailerons 5 and elevators 6, and with subsidiary wings 8 comprising fuel tanks 10, jet propulsion plant 9, and elevators 12. The spars 7 may be explosively separated from the fuselage, and a parachute released to lower the wings 8, which are releasably fastened to the main wings at 11. Landing wheels 13 and 16 or an endless landing track 17 may be used. The fuselage is pressurized and arranged to be buoyant on water. Mechanism is described, Fig. 1a (not shown) for transmitting controls to the turbo-jets 9 and automatically stopping the jets on jettisoning the wings. Other controls are electrically operated through plug-andsocket connections. In the embodiment of Fig. 2, a flying-boat has main wings 31 swept back, and subsidiary rear wings 39, supporting fuel tanks and jet plant 38, which wings are swept forward to meet the main wings at their tips, where floats 52 are provided. Jettisoning takes place by electric detonation of explosive in a cylinder, and piston 42, 44 and may be automatically effected by fire-detecting apparatus. The subsidiary wings with fuel and engines may also be adapted to descend as a glider.
Patent GB-285853-A (GB)
Title: Improvements in, and relating to, water cocks and taps
IPC: F16K1/14
Filed: 1928-02-06
Abstract: 285,853. Wardlaw, Sir H. Feb. 23, 1927, [Convention date]. Loose-ball valves.- In a screw actuated ball lift valve the ball F is pushed away from its seating into a tubular housing D containing a spring E for returning it to its seating. A cage I secured by the screwed cap K holds a resilient seating H in position in the valve casing. The housing D may be integral, as shown, or formed on a detachable bottom cover; or alternatively it may be disposed in a vertical inlet connection in line with the valve spindle.
Patent GB-858792-A (GB)
Title: New pyridazine derivatives and processes for their manufacture
IPC: C07D401/04
Filed: 1959-02-02
Abstract: The invention comprises compounds of the general formula : <FORM:0858792/IV(b)/1> (wherein R1 represents C1-4 alkyl group, R2\t represents a C1-4 alkyl group or a phenyl or thiophene residue which may be substituted, R3 represents hydrogen or a C1-4 alkyl group, or R2 and R3 together represent an alkylene chain, and R4 represents hydrogen or an alkyl, aryl or cyano group) and their acid addition salts, and the preparation thereof by (i) condensing an N-alkylpiperidyl-4-hydrazine of the general formula : <FORM:0858792/IV(b)/2> with a g -ketocarboxylic acid or ester of the general formula:  <FORM:0858792/IV(b)/3> (wherein X represents hydrogen or a C1-4 alkyl group) and dehydrogenating the resulting 4 : 5-dihydro-pyridazone-6, or (ii) (when R2 and R3 are identical or jointly form a symmetrical alkylene chain) condensing compound II with an a -dicarbonyl derivative of the general formula: <FORM:0858792/IV(b)/4> and converting the resulting monohydrazone with an organic carboxylic acid or ester containing a reactive methylene group and of the general formula :  <FORM:0858792/IV(b)/5> The products are useful as analgesic agents or as intermediates for the preparation of other pharmaceutical compounds. Specifications 788,393 and 843,689 are referred to.
Patent GB-418717-A (GB)
Title: Improvements in ventilators
IPC: F23L17/02
Filed: 1934-02-05
Abstract: 418,717. Ventilating shaft tops. HEPPENSTALL, T. A., 137, Raeburn Avenue, Eastham, Cheshire, and ROBERTSON CO., H. H., Grant Building, 3rd Avenue, Pittsburg, U.S.A. Feb. 5, 1934, No. 3686. [Classes 25 and 137.] A ventilator for use on buildings, ships, or other structures comprises an eduction pipe 10 leading to a space enclosed by a suction band 12 spaced at the top from a cover 13, and at the bottom from an air-deflecting collar 22. Rain entering the space 14 is prevented from passing down the pipe 10 by a conical baffle 16, and cylindrical baffle 20. These baffles are supported on vanes 24.
Patent GB-492238-A (GB)
Title: Double twist twisting spindle
IPC: D01H7/86
Filed: 1938-02-05
Abstract: 492,238. Twisting apparatus for imparting two twists per revolution. BARMER MASCHINENFABRIK AKT.-GES. Feb. 5, 1938, No. 3716. Convention date, March 22, 1937. [Class 120 (ii)] A number of circular or elongated slots 3 are formed in the wharl or thread-storing disc of apparatus for imparting two twists per revolution and lead to the hollow spindle 4 to facilitate the threading of the apparatus. The slots 3 are provided with wire guides 6 and the spindle 4 is so shaped that the yarn runs freely through the slots.
Patent GB-358395-A (GB)
Title: Device adapted to be mounted at the ends of net wings
IPC: A01K75/06
Filed: 1931-02-05
Abstract: 358,395. Trawling-gear. V. D., Ltd. 54, Victoria Street, London. Feb. 5, 1931, No. 3717. Convention date, Nov. 4, 1930. [Class 48.] A net wing stretcher comprises a conical or equivalent member which is connected with its apex to the towing cable and its base to the head rope. In one form, Fig. 1, a central rod 8 is connected by shackles 13, 14 to a ring 12 on the head rope and by shackles 16, 17 to a ring 15 on the towing cable. The ground rope 4 is connected to ring 15 by a cable 20 and shackles 18, 19, 21, 22. The conical member 7 is weighted at its apex 9. The member 7 may take various forms as for example that shown in Fig. 5. In a modification, Fig. 8, the head rope 2, ground rope 4, and the side rope 44 are attached to a crossbar 46 pivoted to the base of the member 7. In further modifications the ropes are attached direct to the base or the ropes 2, 44, Fig. 9, to the crossbar 40 which is secured to the member 7 by a cable 48. The ground rope 4 is connected to a shackle 49. Specification 349,871 is referred to.
Patent GB-270020-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H01G5/38
Filed: 1926-02-10
Abstract: 270,020. Riley, T. S. Feb. 10, 1926. Condensers comprising two systems of parallel plates capable of relative displacement. are arranged so that equal and symmetrical displacement of the two systems of plates is effected by means of a slider and a pair of links. The plates A, B are mounted on bolts E which are insulated from arms C, D pivoted at G in a frame W, individual plates being spaced by, for example, lugs formed solid with the plates near the bolt holes. The arms C, D are actuated by a slider N through links L, M so as to be equally and symmetrically moved, the slider being itself moved by a screw P and held against rotation by a pin V engaging a slot in a plate U. As the plates approach one another, the movements of the arms C, D, for equal movements of the slider, increase, a feature of value in applying the mechanism to straight-line fre- ,quency condensers since plates of more ordinary shape may be used. Alternatively the plates may be shaped according to requirements. A compression spring R is provided for taking up the backlash and terminals X are mounted on an insulating strip on the frame. Fine and coarse adjustment are respectively effected by a pinion S and a large gear wheel T in mesh with it, and still finer adjustment may be had by replacing the disc Z by the larger wheel of a gear .or friction drive, the pinion of which is actuated by the fine tuning knob. The plates are preferably silver-plated after assembly and the frame W and arms C, D connected to earth potential. The Provisional Specification also states that the movement of the slider N may be got by a cam, lever, system of toggle levers or other means and that the condenser may be immersed in an oil or liquid dielectric.
Patent GB-201948-A (GB)
Title: Improvements in sand blast machines
IPC: B24C3/28
Filed: 1922-02-10
Abstract: 201,948. Knowles, J. T., (Dreisbach, C. A.). Feb. 10, 1922. Sand-blast; tumbling-barrels.-In a sand-blast machine of the tumbling-barrel type, the sandblast apparatus is mounted on the barrel so as to rotate therewith, and the sand is used repeatedly. The barrel driven by friction rolls 13 is formed of sections 19 joined by members 11, and is closed at one end by a door 79 pivoted on the frame, and at the other end by a plate 22 having perforations 24, a head 21 having openings 23 opposite the perforations 24, and a. cover-plate 29. A space 26 in the head 21 forms a dust-box, from which dust is exhausted through an opening 30 in the plate 29, the said plate being held against rotation. Mounted on the outside of the barrel is a series of sand hoppers 32, each of which communicates by way of a deflector-plate 35 with a sand chamber 48. Air from the chambers 40 passes to the sand and air mixing-chambers 44, and thence to a set of nozzles 46 directed radially inwards. As the barrel rotates, the used sand falls therefrom through passages 36 into the hoppers 32. Members 37 hinged to the barrel form covers for the sand chambers 48, and have formed therewith the air chambers 40 and mixing- chambers 44, the air chambers being connected by flexible hose 77 to radial passages 76 in the head 21. Air under pressure is admitted through a valve 66, a shank 71, Fig. 5, of a hollow plug 68, which is seated in a bushing 72 secured to the head 21, and through a radial opening 70 in the plug to the passages 76. As the barrel rotates, each set of nozzles becomes operative as the corresponding passage 76 registers with the opening in the plug 68. If the angular size of the opening is increased, the sets of nozzles will not act intermittently, but one set will commence to operate before the preceding set ceases to function. If the plug 68 is shortened and the end left open, each set of nozzles operates continuously.
Patent GB-672892-A (GB)
Title: Improvements in optical systems for the direct measuring of variations in flatness, alignment or coaxiality
Filed: 1949-02-14
Abstract: 672,892. Optical gauging-apparatus. CUNY, B. E. A. M. Feb. 14, 1949 [Feb. 26, 1948], No. 3944/49. Class 106 (ii). An optical apparatus for testing a plane surface P comprises a collimator assembly Mc and a telescope Ml in close proximity to each other and on the same side of a reflector member T mounted on a feeler member adapted to slide over the plane surface 'to be tested. A glass plate V, Fig. 2, is interposed in the beam and coincidence between the reticules of the collimator and telescope is obtained by rotating the plate by means of a micrometer which indicates any departure from standard in the surface to be tested. In a modified form, Fig. 3, a single objective O is employed and a plane mirror M and lens X are employed to reflect the beam from the feeler member along its axis.
Patent GB-754230-A (GB)
Title: A maximum demand mechanism
IPC: G01R11/60
Filed: 1954-02-10
Abstract: 754,230. Speedometers. LANDIS & GYR AKT.-GES. Feb. 10, 1954 [Feb. 14, 1953], No. 3958/54. Class 106 (3). A maximum demand mechanism comprises a resetting device which effects decoupling of the meter drive, at the end of a registration period and re-coupling directly zeroization has been effected. In one example, Fig. 2, the meter (not shown) drives the indicating drum 61 through the gears 2, 3, 4, 5, a friction coupling 52, 53, a shaft 50 and a differential gear 54, 55, 56, the carrier 56 of which is integral with the drum 61. The drum 61 is connected through gearing to a pointer 66 which moves over a scale 67. The shaft 50 also drives a resettable pointer 45 through the gears 6, 40, 41, 7, 42, 43, 44. The gear 7 is rotatably mounted on a spindle 13 and is integral with a disc 14 having a tooth 15. Also free on the spindle 13 is a disc 16 having two spaced teeth 17, 18. The tooth 17 is normally engaged by a pawl member 28 carried by a lever 26 fixed to the spindle 13. The tooth 18 is normally engaged under the pressure of a spring 19 by a pin 47 carried by a lever 26 freely pivoted on the spindle 13 and movable between two positions determined by the pins 23, 24. The lever 21 carries the shaft supporting the gears 3 and 4 and during a registration period the lever 21 is held by a spring 22 in the position in which the gear 4 meshes with the gear 5. At the end of a registering period the electromagnet 12 is energized, its armature 31 rotates clockwise and through the gears 33, 34 drives the spindle 13 and its arm 26 counterclockwise. The pawl 28 rotates the disc 16 and the spring 19 pulls the lever 21 counter-clockwise to abut the pin 24 and withdraw gear 4 from gear 5. As the lever 26 continues to rotate a pawl 27 carried thereby meets the tooth 15 and rotates the disc 14 and the pointer 45 back to zero whereupon a stop 29 disengages the pawls 27, 28 and the spring 19 returns the lever 21 to recouple gears 4 and 5. In another example, Fig. 1 (not shown), the drum 61 and its driving mechanism are omitted and only a maximum demand pointer is provided.