baber/WOPTO huggingface dataset:
Patent GB-561884-A (GB)
Title: Improvements in screw and nut fastenings
IPC: F16B39/24
Filed: 1943-01-09
Abstract: 561,884. Bolting. BOOTH, J. H. Jan. 9, 1943, Nos. 449 and 3276. [Class 89 (i)] Relates to screw and nut fastenings for securing together two or more members one of which is of tubular or other hollow section and consists in a construction whereby separate distance pieces, surrounding the bolt to support the walls of the hollow member, are dispensed with, the nut itself serving this purpose. In securing a transparent panel 10 to a tubular member 23 with the aid of strips or rails 12, 25 and interposed packing 14, bolts 16 are supported in countersinks in the rail 12-and fitted with nuts 18 threaded for a part of their length only, the remainder being in the form of a tubular extension 20 that may abut the rail 25 or be formed with a part cylindrical end to engage the inner surface of the member 23. The nuts may have heads formed at 22 to engage the tube and prevent rotation during tightening the bolt, and slotted at 21 to render them self-locking as described in Specification 561,863.
Patent GB-340414-A (GB)
Title: Improvements in or relating to air craft
IPC: B64D17/00
Filed: 1930-01-06
Abstract: 340,414. Aeroplane wings; parachutes. SCHLAFLI, G. R., 11, Hinterbergstrasse, Zurich, Switzerland. Jan. 6, 1930, No. 456. [Class 4.] An aeroplane is provided with parachutes extending over practically the whole of the supporting surfaces and having their ropes equally distributed around the edges of recesses therein. The main plane has two parachutes normally resting on grids within the plane which has two upper flaps 4a, 4b and two lower flaps 3a, 3b, hinged at their rear edges, adapted to be opened by cables leading to hand-operated shafts. The tail plane has a single parachute normally enclosed by an upper flap 4c and two lower flaps 3c. When the parachutes are released the lower flaps are closed to complete the undersurface of the planes.
Patent GB-159082-A (GB)
Title: Improvements in or relating to shovels and the like
IPC: A01B1/02
Filed: 1920-01-06
Abstract: 159,082. Coleman, A. B. Jan. 6, 1920. Handles. - A shovel, spade, fork, or like implement is provided with a secondary handle having a hinged or flexible connection to the usual handle near the blade or tool, so that the implement may be worked by the user in an upright position. The secondary handle a has a bail clip c secured to it by a removable pin d, which clip surrounds the main handle e and passes through an eye or ring f fixed in the required position on the handle e.
Patent GB-217858-A (GB)
Title: Improvements in or relating to machines for granulating slag
IPC: C21B3/08
Filed: 1924-01-08
Abstract: 217,858. Bonnor, G. F., and Newell & Co., Ltd., E. Jan. 8, 1924. Granulating.-In apparatus for granulating sla.g of the type in which the molten slag falls into a chamber through a jet or stream of water, the brittle globules of solidified slag being afterwards acted upon by ribs or vanes carried on a rotating drum, the granulation is effected in a substantially closed chamber and a current of air under pressure is admitted to the interior of the drum and thence through ports in the periphery thereof into and through the chamber; the air current may be preheated and means may be provided for increasing the velocity of the air current within the drum. As shown, the drum 6 is mounted within the granulating chamber 1 on a shaft 7 and is provided with radial ribs or vanes 8 and ports 9 between them for the passage of the air current. A conical nozzle 10, coaxial with the drum, is fitted at one or each end thereof, and means is provided for adjusting the annular space 13 between the nozzle and the adjacent end of the drum. The drum may comprise a number of ring-like, sections, and the base of the nozzle 10 is preferably at or outside the chamber wall and carries a packed gland 11 through which the spindle 7 passes. A flue 2 is provided to carry away fumes &c., and the opening 3 through which the slag-supply shoot 4 passes is preferably disposed adjacent the flue and a cowl 14 provided above the opening, forming a branch of, or leading to, the flue 2. The spokes of the drum 6 may be fitted with, or formed as, vanes or blades to produce a suction effect and thus augment the air pressure delivered from the nozzles 10. The granulated and dried slag falls into the space 15 below the drum and is removed through a sealisg chamber 16 fitted with interlocked flap valves 17, 18.
Patent GB-579956-A (GB)
Title: Improvements relating to vehicle instrument panels
IPC: B60K37/02
Filed: 1945-01-05
Abstract: 579,956. Mounting instrument boards. LUCAS, Ltd., J., and FOXALL, H. H. Jan. 5, 1945, No. 504. [Class 79 (iv)] A vehicle instrument panel is detachably secured by one or more rotatable catches. The instrument panel b has secured to the rear thereof two U-shaped spring clips a adapted to embrace a pair of rotatable spindles e provided with flattened portions h opposite the clips. The spindles are turned by the knobs g so as to present the edge of the flattened portions h to the openings in the spring clips, the panel placed in position and the knobs g turned through 90 degrees so that the clips grip the flattened portions h. A peg i at the top of each spindle, in conjunction with segmental notches or stops, limits the rotation of the spindle e. Locating dowels m may be provided on the back of the instrument panel and these may enter holes containing compression springs so that on rotating the knobs g to release the panel the latter is given an initial outward push. Instead of a pair of rotatable catches as shown, a single longitudinal rotatable bar having one or more flattened portions may be used.
Patent GB-213959-A (GB)
Title: Improvements in or relating to railway rail joints
IPC: E01B11/10
Filed: 1923-01-06
Abstract: 213,959. Pascal, C. Jan. 6, 1923. Rail joints enclosing material of high electric conductivity held in intimate contact with the rails by the joint members comprise a base plate 1, recessed at 2 to accommodate one side of the base flanges of the meeting rails 13, 14 with a strip 10 of conducting material disposed between the base flanges and the inner wall of the recess, and a brace plate 30 extending from the underside of the rail head over the other side of the base flanges and covering a plate 18 of conducting material disposed between the base flanges and the brace plate. The base flanges at one side have holes or slots into which plugs 9 of conducting material are driven so as to make contact with the conducting strip 10. The base plate 1 is undercut at 4 to receive a wedge-shaped filler bar 15 which is perforated at one end for a cotter pin 17. The brace plate 30 and plate 18 are slotted to accommodate fixing bolts 33 and the ends of the plate 18 and strips 10 are adapted to be knocked down over the ends of the base plate. A joint plate 27 is bolted with the brace plate 30 to the rails.
Patent GB-689307-A (GB)
Title: Improvements in and relating to refrigerators
IPC: F25D11/02
Filed: 1952-01-08
Abstract: 689,307. Refrigerators. BRITISH THOMSONHOUSTON CO., Ltd. Jan. 8, 1952 [Jan. 11, 1951]. No. 583/52. Class 29. Two separate inner liners 2, 4 are provided within the outer wall 1 to form a low temperature frozen food compartment 3 and a fresh food compartment 5 at a higher temperature, and blocks 20, 24, 32, of moisture-impervious heat insulating material such as foamed polystyrene are disposed in contact with the outside of the top, back and sides of the frozen food compartment, leaving the bottom 17 exposed for the collection on it of frost from moisture in the insulation space. On defrosting, the water is collected in a receptacle 16 also of polystyrene arranged between the compartments and is discharged to a rceptacle in the fresh food compartment 5. Penetration of moisture into the main insulating material 6 e.g. glass wool is thereby minimised. The compartments have separate doors 9, 10 and the frozen food compartment 3 is cooled by evaporator pipes 11 secured to the exterior of the liner 2. The compartment 5 is maintained at a higher temperature e.g. by the system of Specification 649,373. A rubber tube 12 connects an opening in the bottom of the liner 2 to an opening in the top of the liner 4 to direct defrost water from the interior of the frozen food compartment to a receptacle in the fresh food compartment, and holes 18 in the rubber tube allow the melt water in the receptacle 16 to be discharged. A cup 14 covers the hole in the liner 2 and a cellulose sponge washer 19 minimises passage of air through the hole 18. Moisture from the insulation surrounding the compartment 5 passes to the bottom well 17 of the liner 2 through passage 30 above the receptacle 16. The lower end of the tube 12 may be shaped to direct the melt water down the rear wall of the liner 4. The blocks 32 of insulating material behind the breaker strips 7 prevent sweating in this region.
Patent GB-572805-A (GB)
Title: Improvements in or relating to fluid operated servo control mechanisms and pumps or motors including such mechanisms
IPC: F01B3/00
Filed: 1943-01-13
Abstract: 572,805. Fluid-pressure servomotorcontrol systems.. WAHLMARK, G. A. Jan. 13, 1943, Nos. 651 and 652. Convention dates, March 2, 1942, and Aug. 1, 1942. [Class 135] Fluid-operated servo-control mechanism comprises reversing means for moving the operated element in opposite directions from a neutral position, a fluid - operated control member opposing movement from the neutral position and a servo-valve for the control member, said valve being connected to a valve controlling the reversing means and coacting with porting in a casing carried by the operated element and movable therewith. The form shown in Figs. 3 and 10 comprises pumps P, P<1>, preferably of the type described in Specification 545,013, and having a wheel-like valve 65 driven by an eccentric pin 67 as described in Specification 516,721. Adjusting means for the wobbler plate of each pump comprise a control sleeve 85 or 851, control pistons 861, 871, a reversing valve RV or RV<1>, and a pair of servo-valves SVF<1>, SVR<1>. Liquid from a pump GP<1> passes through a pipe 153<1> to the valve RV<1>, and through a pipe 155<1> and valve PRV<1> to a chamber 89<1> between the control sleeve and cylinder block on which it is capable of sliding. Movement of the valve RV<1> in either direction from the position shown allows liquid to act on the pistons 86<1> or 87<1> to tilt the wobbler plate in one or the other direction and to move the sleeve 85<1> to the right. Simultaneously, one of the servovalves is operated by its connection with the valve RV<1> to allow exhaust from the chamber 89<1> through the port 166<1> and passage 167<1> or 168<1>, this exhaust ceasing when the movement of the sleeve closes the port 166<1>. In a modified form, employing one servo-valve only, this valve is connected to the reversing valve by a link which is in dead-centre position, when the reversing valve and wobbler are in their neutral positions. In both forms, in order to obtain rapid adjustment, the servo-valves and the distributing valve are cracked open in the neutral position, and the valve PRV<1> is provided with a strong spring. In another form in which the adjustment is slower, the valve PRV<1> has a weak spring, and the servo-valve SVY, Fig. 18, controlling the exhaust from the chamber 89 consists of a flat disc carried by the stem of the valve RV and having a mid-portion 186 which can entirely close the exhaust port 184.
Patent GB-1168911-A (GB)
Title: Ethylene Polymers
Inventor: MORTIMER GEORGE ALLAN
IPC: G05D23/24
Filed: 1967-01-05
Abstract: 1,168,911. Ethylene/vinyl ester/acrylic amide copolymers. MONSANTO CO. 5 Jan, 1967 No. 661/67. Heading C3P. Tough non-rubbery copolymers are prepared by polymerizing ethylene with a vinyl ester of a monocarboxylic acid and an amide of the formula CH 2  = CR 1 -CO-NH-R 2 , wherein R 1  is H or methyl and R 2  is H, alkyl, hydroxyalkyl or aryl, at a temperature of from above 100‹ C. to 400‹ C. and at elevated pressure (preferably from 5000-60,000 p.s.i.g.) in the presence of a free radical initiator and in a homogeneous reaction system. The vinyl ester may be the formate, acetate, propionate, butyrate, laurate, stearate, crotonate, linoleate, pivalate, or trifluoroacetate ester. Suitable initiators include hydrogen peroxide, organic peroxides and hydroperoxides, peroxy esters, per-acids, persulphates, azo compounds, azines and oximes. Chain transfer agents may also be used, e.g. C 1 -C 10  aliphatic alcohols, C 3 -C 10  aliphatic ketones, C 1 -C 8  aliphatic aldehydes, saturated hydrocarbons, aromatic hydrocarbons, chlorinated hydrocarbons, and hydrogen. Polymerization can be effected batchwise or, preferably, continuously. The copolymers can be used to produce films, mouldings or bottles; and they may be modified by incorporation of fillers, reinforcing agents (e.g. fibrous materials), foaming agents, pigments or stabilizers.
Patent GB-685200-A (GB)
Title: Improvements in or relating to fluid control valves
IPC: F16K15/06
Filed: 1948-03-08
Abstract: 685,200. Non-return valves. ELECTROHYDRAULICS, Ltd., and BURNS, R. H. Feb. 14, 1949 [March 8, 1948], No. 673/48. Class 135. A non-return valve with external threads 3 for connection in a pipe line comprises a slidable valve carrier 24 having a rubber valve closure member 25 and loaded by a spring 27 having an abutment on a bored plug 5 which has a frictional fit within the body of the valve. The plug 5 is maintained in position by the connection with the pipe line and may also be provided with an annular groove 30 into which part of the material of the body is punched as at 31. A sealing ring 23 is fitted on the plug.
Patent GB-873064-A (GB)
Title: Hydrocarbon polymers
Inventor: SOUTHERN DEREK
IPC: C08F10/14
Filed: 1959-01-08
Abstract: An olefin having in the molecule at least six but not more than eighteen carbon atoms is polymerized in the presence of Ziegler type catalysts to give a liquid polymer, the mole ratio of the reducing component of the catalyst to the reducible one being at least 0,05-1 but less than 1 : 1.  The olefin may be obtained by the thermal or catalytic cracking of the raffinate obtained by the selective solvent (liquid sulphur dioxide or furfural) extraction of heavy catalytically cracked cycle oil; the olefin may be an alpha-olefin or a mixture consisting of a large proportion of alphaolefins and the mole ratio of catalyst components may vary according to the nature of the monomers to be polymerized.  The olefin may be purified by treatment with one of the catalyst components, by treatment with sulphuric acid, by distillation and percolation through silica gel, or by treatment with activated silica gel.  The polymerization may take place in the presence of a solvent.  Low molecular weight polymer may be removed by fractional distillation in the presence of steam or super-heated steam.  The reducing component may be a group 1, 2 or 3 metal or alloy thereof, or an organo-metallic compound or a hydride of a group 1, 2 or 3 metal, tin or lead, or an organic boron compound or addition complex thereof.  The reducible component may be a compound of a Group IV(a), V(a), VI(a) or VII(a) metal or of iron. Specified compounds are zinc dimethyl, magnesium dipropyl, aluminium triethyl, diethyl aluminium bromide, dimethyl aluminium hydride, phenoxydiethyl aluminium, dimethylaminodiethyl aluminium, piperidyldiethyl aluminium, (methylcyclohexylamino)-diethyl aluminium, (N-methyl-amino)-diethyl aluminium, diisobutyl aluminium benzoate, ethyl aluminium dichloride or sesquichloride, and aluminium triisobutyl together with titanium tetrachloride (preferred), the chlorides or oxychlorides of zirconium and vanadium, tin or lead tetrachloride and ferric chloride.  Specifications 799,392, 799,823, 801,031, 810,023, 819,867, 820,263, 851,112, 851,113, 851,119, 873,065 and 873,067 are referred to.
Patent GB-551243-A (GB)
Title: Improvements in elevated directional aerials or aerial systems
IPC: H01Q21/14
Filed: 1940-01-12
Abstract: 551,243. Aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., SMITH, S. B., and FORBES, I. S. Jan. 12, 1940, No. 768. [Class 40 (v)] An aerial for use over a wide band of frequencies, and having an earthed metal-sheathed feeder enclosed in a metal supporting- structure, is safeguarded against undesirable re-radiation by providing a variable reactance at the foot of the aerial, and using it to confine the freedom of oscillation of the whole structure to frequencies outside the working band. As shown in Fig. 1 the metal-sheathed feeder 5 for an Adcock aerial 1, 2,is formed into a helix 6 at a point below the supporting column 4 ; and the outer sheath of the feeder 5, the cross-arm 3, and support 4 are bonded together. The whole supporting and screening structure is then tuned to a harmless frequency by short-circuiting one or more turns of the helix 6, or by varying the spacing of its windings.
Patent GB-156766-A (GB)
Title: Improvements in jig-conveyors
IPC: B65G27/00
Filed: 1921-01-07
Abstract: 156,766. Hinselmann Geb. June 19, 1918, [Convention date]. Jigging-conveyers.-Adjacent sections a, b of a jigging-conveyer are connected at each side by a bolt d passed through an eye c on one section and a downwardly-opening hook e on the other section. A hooked projection f on the bolt engages a notch in the hook e when the nut g is tightened.
Patent GB-298214-A (GB)
Title: Improvement in process of refining rosin
IPC: C09F1/00
Filed: 1928-01-10
Abstract: 298,214. Hercules Powder Co.., (Assignees of Langmeier, A.). Oct. 6, 1927, [Convention date]. Resins.-Resin is refined by flowing molten resin over a heating surface while flowing a heating medium in an opposite direction relatively to the surface, whereby the resin is subjected to an increasing degree of heat. The resin is melted at a temperature sufficient to vaporize its component of low volatility in a predistiller, the resin being finally vaporized in a vaporizer and the vapours condensed to provide high grade resin and resin oil. The process is preferably effect-ed under reduced pressure and in the presence of superheated steam. In an apparatus suitable for carrying out the process, low grade resin is melted in a pot 2 by a steam coil and the molten resin is forced by a pump 10 into the inner tube 14 of a pre-distiller. Herein the resin is heated by oil entering and leaving by the pipes 18 and 20 respectively, to a temperature between 464- 500‹ F. to vaporize any low-boiling colouring matters. Vapours and unvaporized resin leave by a pipe 22 and enter a separator 24, where the vapours are separated and leave by a pipe 26 to a condenser 28. A vacuum pump 30 maintains the separator, condenser, and pre-distiller under a reduced pressure such as “-5 inches of mercury. The unvaporized resin passes through a pump or feed-cock 34 to the inner tube 36 of a vaporizer 38, similar to the pre-distiller and heated by oil entering its outer packet at 40 and leaving at 42. That part of the resin which can be distilled without decomposition is here vaporized, preferably at about 500-575‹ F. The mixture of resin vapour, unvaporized material, dark low volatiles, &c. pass into a separator 46, where the liquid material is .separated from the vapours, a low grade resin being recovered from the outlet 56. The vapours pass into a condenser 50 or series of such condensers maintained at decreasing temperatures. High grade resin condensed is drawn off through an outlet 54, and uncondensed vapours pass off through outlet 52 to a condenser and scrubber, which may include a circulating stream of solvent to dissolve resin and resin oil. The scrubber is connected to a vacuum pump to maintain a pressure of about “-2 inches of mercury throughout the vaporizer system. Steam, superheated at 60, by oil returning from the pre-distiller and vaporizer, passes into the pre-distiller and vaporizer through pipes 66 and 68. High-pressure steam, mercury. fused salts, or alloys may be used instead of oil for heating purposes. The Specification as open to inspection under Sect. 91 (3) (a) describes also the use of direct. heat for heating purposes. This subject-matter does not appear in the Specification as accepted.
Patent GB-1288304-A (GB)
IPC: G10K11/16
Filed: 1970-01-07
Abstract: 1288304 Sound attenuating sheets and laminates W R GRACE & CO 7 Jan 1970 [8 Jan 1969] 888/70 Headings B5B and B5N [Also in Divisions C3 and F2] A microporous sheet comprises a flexible polymer having pores of average diameter 0À01 to 10 Á and containing 20-95% by wt. of finely divided particles of lead or a lead compound. The polymer may be an ethylene-butene copolymer, polyethylene, polyvinyl chloride or natural rubber. The lead compound may be lead oxide, sulphide or silicate. In the examples the sheets also contained petroleum oil, silica, carbon black, dioctyl phthalate, sulphur, stearic acid and/or silica gel, the oil or phthalate being extracted to make the sheets porous. A sound attenuating barrier comprises a layer of construction material to which is attached the above porous sheet. The construction material may be gypsum board, wood, rock wool or fibreglass batt.
Patent GB-620347-A (GB)
Title: Improvements relating to electric converter systems
IPC: H02M7/06
Filed: 1947-01-10
Abstract: 620,347. Rectifying. BRITISH THOMSON HOUSTON CO.. Ltd., and READ, J. C. Jan. 10, 1947, No. 922. [Class 38 (ii)] In a rectifying system of the discharge type having np phases divided into n groups of p phases by at least three interphase transformers 5, 6, 7, the interphase transformers have auxiliary or secondary windings 9-14 connected to n auxiliary rectifiers, the transformer connections being arranged so that the voltages applied to the auxiliary rectifiers is equal to (1 + x/y) times the voltage between the main interphase neutral point and the neutral point of the corresponding p phase group, x, y being as defined in the figures. With this arrangement the A.C. and D.C. waveforms approximate to those in a 2 np phase rectifying system. The auxiliary rectifiers may be of the so-called " double-way " type, in which the interphase transformer secondary windings feeding the auxiliary rectifiers may, at least in part, carry two opposite half-waves of current in the same winding (Fig. 4, not shown). Existing installations having interphase transformers with no secondary windings may be converted to operate in a "phase doubled manner by connecting additional interphase transformers, having the necessary secondary windings, in parallel with the original interphase transformers (Figs. 2, 3, not shown). The additional transformers may be of the single phase type. Specification 524,933 is referred to.
Patent GB-392489-A (GB)
Title: Improvements in or relating to submersible pump-and-motor units
IPC: F04D13/08
Filed: 1933-01-11
Abstract: 392,489. Centrifugal pumps. SIGMUND, J., Lutin, Czecho- Slovakia. Jan. 11, 1933, No. 964. Convention date Jan. 18, 1932. [Class 110 (i).] A direct-driven submersible pump has the air space for the motor 5 maintained by an ejector 13 driven by the fluid pumped which entrain with it air from a pipe 11. The mixture of air and water passes through the u tube 16 to the bottom of the diving bell 4 where the air escapes into the air space 15 while the water flows out through the passage 8.
Patent GB-1520461-A (GB)
Title: Device for the stabilization of farm fodder or waste material
IPC: E02F3/40
Filed: 1975-01-09
Abstract: 1520461 Grippers G H WEBBER 19 Dec 1975 [9 Jan 1975] 978/75 Heading B8H Farm fodder or waste material which is contained in a shovel 14 attached to the front loader, 10 12, 16 of a tractor, is retained in the shovel 14 by a stabilizing device which is pivotally attached to the front loader 10, the said stabilizing device comprising a framework 2 of parallel bars 4 which each have curved end portions, the outer end portions being curved, the stabilizing device also comprising prongs 38, 40, and a hydraulic ram 26 which is connected between a crossbar 16 of the front loader and a cross spar 6 of the framework 2 for tilting the latter about pivot points 8 to cover the shovel 14. When the ram 26 is de-energized springs 18, 20, 22 cause the framework 2 to be rotated away from the shovel 14.