baber/WOPTO huggingface dataset:
Patent GB-1159063-A (GB)
Title: Coated Elastomeric Filaments.
IPC: D02G3/22
Filed: 1967-04-25
Abstract: 1,159,063. Coating cores by extrusion. E. I. DU PONT DE NEMOURS & CO. 25 April, 1967 [26 April, 1966], No. 18932/67. Heading B5A. [Also in Divisions C3 and D1] A composite textile filament is produced by coating a core of at least one continuous elastomeric strand with a continuous sheath of a closed-cell polymeric foam which completely covers the core, the core being under tension and the foamed sheath under compression along the fibre-axis of the composite filament when in unstressed condition. In Fig. 2 an elastomeric yarn 30 is fed at a controlled speed over driven feed-roll 21 through orifice 28 in threaded gland 24 of apparatus 20 into which foamable composition is injected under pressure through channel 23 which terminates in chamber 25 where the foamable composition surrounds the moving yarn, the flow-rate of the foamable composition being controlled by adjustment of the opening between surfaces 26 and 32 by threaded gland 24, and the yarn covered with closed-cell polymeric foam 31 after leaving the exit-orifice 27 is drawn away from the apparatus 20 by driven take-up roll 22 the peripheral speed of which is greater than that of feed-roll 21 so that the yarn in its zone between rolls 21 and 22 is elongated, e.g. to an elongation of 100-700% of the unstressed length. When the composite filament passes roll 22 and the tension on it is relaxed the foam 31 is set sufficiently for the cellular structure thereof to remain intact during the resultant longitudinal compression. The elastomeric strand may be of natural rubber or of spandex filaments formed of a segmented polyurethane and the foamed sheath may be produced from polyethylene, polypropylene, polystyrene, polyformaldehyde, polyvinylidene fluoride, polyvinyl chloride, polyhexamethylene adipamide, polycaprolactam, polymetaphenylene isophthalamide, a polyurethane, polyhydroxypivalic acid, polyethylene terephthalate, polyethylene terephthalate-isophthalate, polyacrylonitrile, polyvinylidene cyanide or polymethylmethacrylate, using a solid blowing agent which decomposes on heating to form gases or a normally liquid or gaseous blowing agent which vaporizes and expands the foamable composition on exiting from orifice 27. Suitable foamable compositions are a composition comprising stereo-regular polypropylene, methylene chloride, 1 ,2-dichloro- 1,1,2,2- tetrafluoroethane and silica aerogel and a composition comprising a copolymer of ethylene glycol with terephthalic and sebacic acids, methylene chloride and dimethylperfluoro cyclohexane. The extensibility of the composite filament may be limited by incorporating a non-elastomeric textile strand, e.g. of polyethylene terephthalate, in the core.
Patent GB-276809-A (GB)
Title: Improvements in pumps for liquids
IPC: B67D1/14
Filed: 1926-07-29
Abstract: 276,809. Wright, J. July 29, 1926. Delivery spouts ; valves, arrangement of.-The delivery nozzle of a beer &c. pump is provided at the highest point with an automatic spring- pressed valve f to prevent access of air to the pipe a. The valve may be vertical or horizontal, and may be inspected by removing a cap d.
Patent GB-1481650-A (GB)
Title: Chemical processes and products
IPC: A61K39/25
Filed: 1975-05-06
Abstract: 1481650 Preparing an attenuated cell-free varicella virus MERCK & CO INC 6 May 1975 18978/75 Heading A5B A method of preparing a live attenuated, cell-free varicella virus useful as an antigen in a vaccine comprises serially passaging the virulent virus at 30‹-38‹C in a tissue culture preparation selected from human and animal diploid cell strains and primary cells of simian origin a sufficient number of times to attenuate the virus followed by release of the attenuated virus from the infected cell by sonication in the presence of a stabiliser comprising sucrose, albumin and phosphate together with glutamine, glutamic acid or a salt of glutamic acid.
Patent GB-1527856-A (GB)
Title: Reinforcement grid for steel concrete construction
IPC: E04C5/04
Filed: 1977-05-06
Abstract: 1527856 Concrete reinforcements AVI ALPENLANDISCHE VEREDELUNGS-INDUSTRIE GmbH 6 May 1977 [7 May 1976] 19059/77 Heading D1K In a concrete reinforcement grid comprising longitudinal and transverse rods joined where they cross by twisted wires, in any one mesh two of the wire loops are inclined to the longitudinal in one direction and two in the other.
Patent GB-135292-A (GB)
Title: Improvements in or relating to Lubricating Means.
Inventor: PATON ROBERT JAMES
IPC: F16F1/24
Filed: 1918-11-20
Abstract: 135,292. Paton, R. J. Nov. 20, 1918. Laminar springs. - A vehicle spring is lubricated by oil supplied by wicks from a reservoir mounted on the spring or elsewhere. One end of a wick D, Fig. 2, is fixed to a pin C<2> in a reservoir C, and the wick passes under a pin C<3> and through a slot C'. The free end is wound round the spring and is enclosed in an oil-proof casing. Fig. 3 shows a reservoir E with a filling-opening E<2> and flexible extensions E<1> mounted on the spring A. Wicks projecting at each side are looped round longitudinal wicks F<1> mounted on a suitable backing, which may extend under the spring, the whole being secured by winding tape or by covering with oilproof material. A. leather gaiter H, which is blocked to fit over projecting parts such as clips B, encloses the spring and the lubricating-devices. The parts are duplicated at the two ends of the spring A, or in the case of a threequarter elliptical spring, a single gaiter may enclose two lubricating-devices. Oil may be applied to boxes in the spring shackle bolts by wicks in flexible tubes connected to the reservoir E. A single reservoir may be arranged to supply two or more lubricating- devices.
Patent GB-498756-A (GB)
Title: Improvements in or relating to construction of electrical transformers
IPC: H01F38/30
Filed: 1937-07-09
Abstract: 498,756. Transformers. BRITISH SANGAMO CO., Ltd., BUTHERUS, F. R., and SMITH, H. F. July 9, 1937, No. 19130. [Class 38 (ii)] A current transformer comprises a toroidal core 2, Fig. 1, carrying a secondary winding 1 and mounted in an insulating housing 3 the core being inserted through an opening at the bottom of the housing 3, and retained in position by interengaging insulating sleeves 5 through which the bar primary 6 passes. The secondary is connected to the terminals 11 which are provided with spring contacts 13 to short circuit the secondary when the apparatus being supplied is removed. To enable the transformer to be suspended in a line lugs 28, Fig. 6, may be attached to the ends of the primary conductor 6. In the form shown in Fig. 3 the primary circuit is completed within the sleeves 5 by a bolted connector 15. Fig. 4 shows a modified form in which the primary circuit consists of several turns 17 in parallel.
Patent GB-633571-A (GB)
Title: Improvements in or relating to lighting units
IPC: A61B1/06
Filed: 1947-07-17
Abstract: 633,571. Lighting units. RITTER CO., Inc. July 17, 1947, No. 19190. Convention date, Aug. 1, 1946. [Classes 75 (ii), 75 (iii) and 75 (iv)] A lamp for dental and like purposes comprises a first light source having means for projecting the light in a concentrated beam and one or more fluorescent discharge tubes disposed around said first light source to provide a diffuse illumination. As shown, an incandescent light bulb 21 having a shield 31 to screen direct light rays, is mounted in front of a parabolic mirror 34 within a cylindrical casing 24, the bore of which is enlarged and shaped at the front end to house a lens 38 of heat absorbent material, retained by a snap ring 52. Symmetrically disposed around the outside of the casing 24 are three metal strip brackets 41 the ends 43 of which are bent to semi-circular form to seat two circular fluorescent tubes 44 side by side and concentric with the casing 24. White painted or polished metal conical reflectors 50 are disposed beneath the tubes 44. The tubes 44 are enclosed within a two-part ellipsoidal housing 46, 47 of transparent or translucent, glass or plastic material, mounted on the casing 24 by means of retaining rings 57 and 63 having a stud and helical groove attachment with said casing. The forward wall 71 of the casing 69 is turned inwardly to form an inner flat support portion 72, and has bent spring clips 73 to press the mirror 34 against an annular positioning abutment 33. Two brackets 76, Fig. 8, form a mounting for a pair of reactors 79 provided for the tubes 44. A semi-cylindrical recess 94 is formed in the support part 72 and co-operates with a member 96 to clamp a horizontal pivot pin 92 which is secured in the head of a goose-neck support post 84. The support post 84, which has an axial wiring bore 86 opening into the casing 69 as at 87, extends between the reactors 79 through a slot 83 in a rear casing cover 81 and is mounted on a hollow vertical pivot rod 89. The lighting unit is approximately in balance on its support pivot. Openings 101 in the casing wall allow wiring (not shown) to pass through to the tubes 44, and separate switches 106, 107 are provided for independent control of the bulb 21 and the tubes 44 respectively. In an alternative construction the circular fluorescent tubes may be of different diameters and arranged partially nested with respect to each other, thus allowing a reduction in the width of the two-part housing 46, 46.
Patent GB-130031-A (GB)
Title: Improvements in and relating to Aerial Ropeways.
Inventor: LEEMING JAMES ARTHUR
IPC: E01B25/18
Filed: 1917-12-29
Abstract: 130,031. Leeming, J. A., and Henderson, W. A. C. Dec. 29, 1917. Rope railways.-Comprises a bracket for securing the flexible rope to the supporting-post, which may be of the type capable of being raised and lowered, as described in Specification 130,008. The bracket consists of two portions 1, 1<a> which fit together by means of tongue-and-socket portions,. the edges of the tongue being wedge-shaped so as to draw the parts together. Each part is provided with an upper extension having a segmental groove so positioned that, when the parts are together, a grip is formed for the rope. The lower parts of the portions are provided with openings through which the arm 7, Fig. 7, of the upright passes; or a ferrule may be passed through the openings to receive the arm. A cap 11 with an internal spring plate and a transverse pin 12 which secures in a bayonet-slot 10 in the end of the arm may be employed as a fastening, or any other suitable fastening may be used.
Patent GB-1516665-A (GB)
Title: Gear elements
IPC: F16H55/08
Filed: 1975-05-07
Abstract: 1516665 Toothed gearing SUMITOMO SHIPBUILDING & MACHINERY CO Ltd 7 May 1975 19238/75 Heading F2Q A gear element has teeth formed of rising flanks and falling flanks wherein the rising flanks correspond to those of a first cycloid and the falling flanks correspond to those of a second cycloid which has been angularly displaced with respect to the first cycloid in a direction such that the flanks forming each tooth approach one another, the two cycloids being otherwise identical. Material at the transitions between adjacent flanks is removed in the apex and valley areas to form a continuous tooth profile.
Patent GB-314384-A (GB)
Title: Improvements in compound internal-combustion engines
IPC: F02B41/06
Filed: 1929-06-22
Abstract: 314,384. Auro, P. June 26, 1928, [Convention date]. Two - stroke - cycle engines. - A compound engine has two high pressure cylinders h, arranged side by side and working with one low pressure cylinder B. The low pressure piston reciprocates at twice the rate of either of the others, one high pressure and the low pressure pistons being simultaneously at the ends of their out-stroke with the other high pressure piston at the end of its compression stroke. The high pressure pistons commence to uncover delivery ports o, to the low pressure cylinder at half stroke; at the end of the outer stroke of the low pressure piston a scavenging air admission port 0 is uncovered, the air blowing the products out of the cylinders through the exhaust ports O<1>, i. After the exhaust ports are closed the low pressure piston delivers the air in its cylinder into the high pressure cylinder then on its compression stroke and after closure of the delivery port o compression proceeds in the high pressure cylinder until the air is at a temperature to ignite the injected fuel. Driving-gear.-The high pressure pistons drive on to the main crank shaft M through rocking beams, V, V<1>, eccentric rods and eccentrics E, E<1> on an auxiliary shaft D this shaft being connected to the main-shaft through a 1 to 2 spur gear. Where two sets of cylinders as described above are used the high pressure cylinders are arranged with their open ends at the opposite side of the engine to that shown in the Figure.
Patent GB-1197313-A (GB)
Title: Dioxolan Substituted Compounds
IPC: C07D317/72
Filed: 1967-04-26
Abstract: 1,197,313. Dioxolan-4-ylalkyl compounds. CUTTER LABORATORIES Inc. 26 April, 1967 [3 May, 1966], No. 19281/67. Heading C2C. The invention comprises dioxolanes substituted at the 4-position by the group-A-B where A is C 1-8  alkylene and B is guanidino or substituted guanidino, and their pharmaceutically acceptable acid addition salts; and their preparation by reacting appropriate 1,3-dixoxolan-4-yl-alkylamines with an S-alky or S- aralkyl-thioisoureas. Modifications of this process are described. The dioxolanes may bear further substituents especially at the 2-position amines of formula wherein R 1  = R 2  = H, Me, EC, Pr<SP>n</SP>, Pr<SP>i</SP>, phenyl or cyclohexyl or R 1  and R 2  together with the the intervening carbon atom form a number of specified carbocyclic rings joined spiro to the dioxolane ring, and A is NH 2  are prepared from the corresponding phthalimides where A is phthalimido which in turn are prepared from the corresponding chlorides wherein A is Cl. The last-named compounds are prepared by reacting a ketone of formula R 1 R 2 CO either with 3-chloro-1,2-propanediol or with epichlorohydrin The aforementioned guanidinoalkyl-dioxolaries are said to possess antihypertensive activity and may be made up with acceptable carriers into pharmaceutical compositions suitable for oral or parenteral administration.
Patent GB-200367-A (GB)
Title: Improvements in perambulator mud-guards
IPC: B62B9/16
Filed: 1922-07-14
Abstract: 200,367. Wasdell, E. C. July 14, 1922. Mud-guards. - In perambulator mud-guards of the kind having stout wire stays connected to a centre-piece detachably secured to the axle, the centre-piece comprises a substantially rectangular thin metal blank bent upon itself to form limbs d<2> and having recesses d<4> with which the heads of bolts e engage. A clamping-piece g the limbs of which, together with the limbs d<2> have V-shaped slots f to embrace the axle x, is held in position by nuts h on the bolts e. The stays c are riveted to the limbs d<2> and may comprise a bent wire or two wires looped around the rivets. Additional strengthening rivets may be provided in the limbs d<2>. Specification 167,977 is referred to. According to the Provisional Specification three looped stays may be provided, passing through holes or recesses in the fold of the centre-piece.
Patent GB-1259753-A (GB)
Title: Meridian gyroscope instrument
Inventor: WIRTH HEINZ
IPC: G01C19/38
Filed: 1970-04-22
Abstract: 1,259,753. Tape suspended meridian gyroscopes. BODENSEEWERK GEPATETECHNIK G.m.b.H. April 22, 1970, No.19331/70. Heading G1C. A tape-suspended meridian gyroscope 1 carries a rod 3 vertical to its spin axis 2 to which is mounted a crossbeam 4 parallel to the gyro axis 2. The rod 3 which is suspended by the tape 6 in a housing 7 has a mirror 5 mounted on it. A locking member 8 secures the beam 4 in a position in which the tape 6 is non-torsioned. The member 8 is guided in the housing 7 by being attached to a shank 9 which is engaged at its end by an eccentric 11 whereby the member 8 can be engaged or released from contact with the beam 4. An autocollimator 13 co-operating with the mirror 5 is adapted to be pivoted around the gyroscope about the Z axis and is connected with an angle indicator. Consequently when the gyro is released after half a period of oscillation the auto-collimator is rotated so that it is aligned with respect to the normal of the mirror oriented parallel with respect to the gyro axis. On the dial the north can then be read. The damping constant D 1  if any, is such that the ratio X of the torque resulting from torsion in the tape suspension and the torque provided by the north seeking gyroscope are related by the expression: X = e<SP>-#</SP> so that when the gyroscope is released with the tape relaxed but with the upper end held against rotation, the gyroscope will at the first reversal point in the osillation, be aligned with north. The damping device associated with the gyroscope comprises a U- shaped tube 23 having its ends provided with enlargements 24, 25 and containing a liquid 26. The tube is disposed in the xy plane of the tape and gyro spin axis and dampens oscillations in this plane.
Patent GB-455810-A (GB)
Title: Process and apparatus for the internal coating of metal containers
IPC: C25D13/14
Filed: 1935-07-06
Abstract: 455,810. Endless -- belt conveyers. CROSSE & BLACKWELL, Ltd., CLAYTON, W., SUMNER, C. G., MORSE, J. F., and JOHNSON, R. I., 20, Soho Square, London. July 6, 1935, Nos. 19346/35 and 14664/36. [Class 78 (i)] [See also Group XXXVI] Metal cans 11 are fed forward between successive stages of treatment by a bandconveyer 11 operated intermittently from a shaft 16 by a Geneva motion 15.
Patent GB-1459734-A (GB)
Title: Power limit and control system
IPC: H02J3/38
Filed: 1975-05-08
Abstract: 1459734 Systems comprising multiple power sources R K HILL 8 May 1975 19392/75 Heading H2H A system for limiting the power drawn from a plurality of power sources M connected in parallel by a plurality of loads L, to a magnitude so as not to overload the sources comprises a load control circuit D for each load L, sensor means S including devices 14 for sensing the output current and kilowattage of each power source M, the sensor means S functioning so that the signal provided thereby on line 16 to a comparator and control device K indicates the load on the most heavily loaded of the power sources M, the device K comparing the signal from the sensor means S with a reference thus providing an output signal on a line 18 which output signal controls all the control circuits D whereby the currents drawn by the loads L are limited to values such that the power sources M are not overloaded. The control device K is provided with devices which indicate the proportion of the total power output of the connected power sources M being taken by the connected loads L to enable an operator of the power system to connect or disconnect sources M and loads L to ensure that overloading of the power systems does not occur.
Patent GB-194483-A (GB)
Abstract: 194,483. Clark, G. M., (Ateliers de Construction de la Basse Sambre Soc. Anon). Jan. 25, 1922. Jigs.-A jig for washing coal or similar substances, of the type in which a single screen is spaced away from both the front and rear walls of the body of the washer, is provided with an adjustable slide at each end of the screen so that the heavier impurities are discharged at the end of the screen near the piston, the lighter impurities at the other end, and the washed coal by a third outlet. The coal to be washed is fed by a shoot 1 on to the screen 3, from the front end of which the washed coal is discharged over an adjustable sill 2. The heavier stones pass under an adjustable slide 4 and over the lip 6 into the pipe 7, from which they are discharged by a bucket elevator 8. The fine material passes through the screen and is discharged by the pipe 9, whilst the lighter stones pass under an adjustable slide 13 and over the lip 14 into the pipe 11, from which they are removed by a bucket elevator 12 for rewashing.
Patent GB-684913-A (GB)
Title: Improvements relating to folding chairs
IPC: A47C4/10
Filed: 1949-07-25
Abstract: 684,913. Seats. YARROW, W. N. Oct. 25, 1950 [July 25, 1949; Dec. 6, 1949]. Nos. 19465/49 and 4558/50, (the second Provisional Specification being divided out of the first Provisional Specification). Class 52(ii) In a foldable chair of the kind in which the seat is pivoted to the back and is capable of being swung upwardly to rest against the back and in which the front legs are pivoted to the seat and fold with the seat the back rest 1 and back legs 2a are formed or made an integral structure, the seat side members 3a are pivoted at the rear to such structure and at the front are pivoted to front legs 5 having upward extensions 5a which are pivoted to arm rests 6 which are also pivoted to the back rest. The arrangement enables the back rest and back legs to be secured to a wall, floor or like support and yet enable the seat &c. to be folded thereagainst. The front legs and arm rests may be formed of a continuous curved length.
Patent GB-411309-A (GB)
Title: Improvements in the method of extruding metal tubes
IPC: B21C29/04
Filed: 1933-07-10
Abstract: Coatings for extrusion mandrels are made from the alloys described in Specification 411,414.
Patent GB-568494-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J19/02
Filed: 1943-11-22
Abstract: 568,494. Thermionic valves, WILLIAMS, T. Nov. 22, 1943, No. 19492. [Class 39 (i)] The anode or anodes of a thermionic valve are provided with a small aperture over which is secured by adhesive a piece of fluorescent material to indicate the operation, of the valve. According to the Provisional Specification, the fluorescent material may be mounted on the envelope in line with an aperture or apertures in the anode or anodes.
Patent GB-998181-A (GB)
Title: Stabiliser compositions
Inventor: BURGESS ROBIN HENRY
IPC: C08K5/3472
Filed: 1961-05-30
Abstract: A polyolefin is stabilized with a composition comprising (a) a 2-(21-hydroxy-aryl) benzotriazole, (b) a diester of thiodiglycollic or b ,b 1-thiodipropionic acid, and optionally (c) a phenolic antioxidant, such as a condensate of a phenol with an aldehyde or ketone, a spirohydrindene, a spirochroman, an alkylidene bisphenol or an alkylidene thiobisphenol.
Patent GB-1349476-A (GB)
Title: Electrode for electrochemical reduction of oxygen and process for its production
IPC: H01M4/86
Filed: 1971-06-08
Abstract: 1349476 Sintered electrodes BATTELLE MEMORIAL INSTITUTE 8 June 1971 [23 June 1970] 19534/71 Heading C7D Electrodes for the electro-chemical reduction of oxygen in alkaline electro-lytes are made by sintering a powder mixture of carbon with at least two of Ni, Co, Fe and Mn to form a non stoichiometric mixed carbide. The metals may be added as the elements, compounds such as hydrides or as alloys and 5-10 per cent activated vegetable carbon is preferably used. The mixture is preferably sprayed as an aqueous suspension containing methyl cellulose on to a nickel or stainless steel mesh and sintered in vacuum or an inert atmosphere. One side of the sintered compact may be coated with a hydrophobic layer by spraying the heated compact with a suspension of PTFE and compacting and sintering a PTFE porous membrane on to the sprayed layer.