baber/WOPTO huggingface dataset:
Patent GB-506828-A (GB)
Title: Improvements in optical signalling devices
IPC: G08B5/00
Filed: 1937-09-01
Abstract: 506,828. Visible signalling-apparatus. MAYER, R. W. Sept. 1, 1937, No. 18290. [Class 118 (ii)] An optical signalling device, more particularly for use by the military during manoeuvres, comprises a sighting barrel 11 having crosswires at each end and a trigger-operated mirror 25 which projects a beam of light through the barrel to indicate at a remote point that the point is sighted by the device. The device may be constructed as a unit for attachment to a gun. As shown, the barrel 11 is supported on adjustable legs 15, 21a, the latter being supported on the stem 21 of a bracket 26 which carries a U-shaped bracket 22 for supporting the mirror 25 and a pivoted trigger 28 which is adapted to oscillate the mirror through an adjustable link 31. The stem 21 is adjustably supported on an arm 20 mounted in a tube 18 which supports the rear end of the barrel 11 through the intermediary of a screen 17 which obscures light reflected from the mirror outside the barrel 11. In use, the barrel 11 is sighted on the distant object through a transparent aperture in the mirror by means of the cross wires and the mirror 25 is adjusted about a vertical axis until the sun's rays are reflected on to the upper part of the inner surface of the barrel 11. The shadow cast by the vertical sighting wire on the inner surface of the barrel is then brought into line with the upper ends of both sighting wires by final adjustment of the mirror about a vertical axis and the mirror is locked against further adjustment by the nut 20a. The link 31 is then adjusted in length so as to direct light rays on to the screen 17 just above the barrel opening. Signalling is then effected by operation of the trigger 28 to oscillate the mirror sufficiently to direct the rays through the tube 11. The movement of the trigger is adjustable by the screw 34. Instead of a mirror, a prism may be employed. Furthermore, a shutter may be provided to obscure the mirror from view from the sighted object. An artificial source of light comprising a lamp and a parabolic reflector directed rearwardly towards the mirror may be employed. The Provisional Specification states that the mirror may be oscillated by mechanical means from a remote point.
Patent GB-1113679-A (GB)
Title: A method of making a rock drill bit with soldered cemented carbide inserts
IPC: E21B10/58
Filed: 1966-04-27
Abstract: 1,113,679. Boring earth &c. FAGERSTA BRUKS AKTIEBOLAG. 27 April, 1966 [29 April, 1965], No. 18379/1966. Heading E1F. [Also in Divisions B3 and B4] In making a rock drill bit with soldered cemented carbide inserts cooling medium is supplied after soldering to a hole provided in the bit while the bit is externally cooled. In an embodiment a rock drill bit comprises a shank portion 2 and a head portion 1 in which are four equally spaced grooves for receiving cemented carbide inserts 3. A central through hole 5 is provided in the head and shank, of larger diameter in the head than in the shank, through which air, oil or other cooling medium is supplied under pressure from the shank end after soldering. When the inserts have been soldered and cooling effected the hole is plugged by a steel plug 6 driven into the head end. The hole may alternatively be a blind hole in the head portion.
Patent GB-683645-A (GB)
Title: Improvements in or relating to processes of preparing 8-haloxanthine salts of organic bases and the 8-haloxanthine salts of the organic bases resulting from said processes
Filed: 1950-07-24
Abstract: 8-Haloxanthine salts of imidazoline compounds are made by mixing the compounds in inert organic solvents at raised temperature and cooling.  The ammonium salt of the 8-haloxanthine may be used. Examples are given of the formation of the 8-chloro- or bromo-theophylline salts of 2 - (phenyl - benzylamino - methyl) - imidazoline.  Other xanthines, all having H in position 7-, which may be employed include chloro- and bromo- and iodo-alkylxanthines and iodo-theophyllines and xanthines.  The aminoalkyl group in the 2-position of the imidazoline may be substituted by monocyclic aralkyl and aryl and p  their substituted groups in general.
Patent GB-626311-A (GB)
Title: Improvements in antenna systems
IPC: H01Q19/13
Filed: 1946-06-19
Abstract: 626,311. Directive radio systems. WESTERN ELECTRIC CO., Inc. June 19, 1946, No. 18432. Convention date, July 21, 1945. [Class 40 (vii)] Relates to means for producing a pencil beam of rotational symmetry about the axis of the beam having side lobes of negligible amplitude in an aerial system comprising a concave reflector energized by a primary element. According to the invention the reflector is formed by rotating a parabola about a line parallel to the axis of the parabola so that the system has an annular focus. As shown in crosssection in the Figure, the upper and lower sections of the reflector 1 comprise parabolas 7 with axes 13 and 9 and foci 12 and 8 respectively, the surface being formed by revolving one such parabola about the axis 3 to produce a circular focal line which is concentric with the axis 3 and passes through the points 8 and 12. The reflector has a flat vertex portion 6 through which a circular waveguide 19 extends along the axis 3 and the aperture 22 of the guide is enclosed in a coaxial cylindrical member 24 with one end plate 25, the annular aperture 26 between the guide and the open end of the cylinder forming the primary aerial element ; a stream-lined housing (not shown) of electrically transparent material encloses the cylinder and rigidly secures it to the guide. Such a primary aerial produces a quasi-toroidal wavefront with a doublepeaked directivity pattern, Fig. 3 (not shown), which is converted by the reflector 1 into a planar wavefront with the required highlydirective pattern of rotational symmetry, Fig. 4 (not shown). In a modification, Fig. 5 (not shown), the cylinder 24, 25 is replaced by a simple disc 25 supported from the guide by an electrically transparent housing, the ring focus being between the disc and the end of the guide. Suitable dimensions are given for operation of both embodiments at a wavelength of 3 cms.
Patent GB-440204-A (GB)
Title: Improvements in and relating to driving arrangements for motor vehicles
IPC: B60K5/12
Filed: 1934-06-22
Abstract: 440,204. Motor - vehicle frames; mounting motors &c. TENNANT, W. J., 111, Hatton Garden, London.-(Tatra Works Ltd. Motor Car and Railway Carriage & Wagon Builders ; 200, Kartouzska, Smichov, Prague) June 22, 1934, No. 18459. [Classes 79 (iii) and 79 (iv)] A driving - unit arrangement for motor vehicles comprises an auxiliary frame 1 upon which the engine 4, change speed gear 6 and final drive gear 5, as well as the cooling means or other elements as desired, are mounted on rubber or other cushioning pads, the frame itself being connected to the main frame 10, 12 by a cushioned three-point suspension, e.g. by means of pivots 9 with flexible intermediate layers and a resilient connection at the end 11. Springs 13 supporting floating half-axles 5<a> may be secured to parts 1<a> projecting from the frame 1. Other forms of springing may be employed. The frame 1 may comprise a box- or trough-like pressed member. The elements 4, 5, 6 are connected by flexible joints 7-8. Specifications 427,891, 430,977, and 434,122 are referred to.
Patent GB-648265-A (GB)
Title: Improvements in or relating to electric insulating materials
IPC: C04B35/48
Filed: 1947-07-11
Abstract: A thin film of electric insulating material is prepared by forming a film of organic plastic insulating material on a metal base, applying finely comminuted powder of an inorganic material having a permittivity greater than five to the surface of said film, removing excess powder and pressing the metal base and film between platens or rollers to press the powder in the film surface.  Specified inorganic materials are titanium oxide, barium titanate, barium strontium titanate and calcium titanate. The inorganic material may be incorporated in the film by drawing the film through the powdered material, by blowing the powder against the film, or by pressing powder into the film from rolls. In particular a metal foil may be passed underneath a tank containing a viscous solution of the plastic material which passes out through a narrow slot in the bottom of the tank on to the foil, then through a chamber containing the inorganic material continuously agitated to form an airborne cloud of particles, then between rollers and finally through a drying chamber. The film may be applied to the base as a solution of the plastic material (e.g. polystyrene or cellulose acetate) in a volatile solvent (e.g. benzene, acetone and methyl ethyl ketone) or as an emulsion of the material in water with or without a solvent (e.g. rubber in petroleum spirit emulsified with water) or as molten plastic material.  The film may be finally dried off preferably at below 100 DEG  C.  Specification 508,057 is referred to.
Patent GB-874010-A (GB)
Title: Improvements in or relating to sealing devices
Inventor: LLOYD WILLIAM HENRY
IPC: F16J15/32
Filed: 1958-06-10
Abstract: 874,010. Stuffing-box substitutes. WOODHEAD-MONROE Ltd. March 17, 1959 [June 10, 1958], No. 18551/58. Class 122 (5). A seal for a shaft or spindle, for example the piston-rod 14 of a telescopic hydraulic shockabsorber, comprises a ring 10 of synthetic rubber or other resilient material having a number of sealing lips 11, 12 and 13 of which one 11, has a smaller free bore and a greater root diameter than the other lips 12 and 13. In the arrangement shown in Fig. 3, the ring 10 is clamped between an end cap 17 and a retainer 19 by a coil spring 20 which also urges the lip 11 against the rod 14.
Patent GB-461797-A (GB)
Title: Improvements relating to the treatment of difficultly volatilisable liquid fuels for internal combustion engines
IPC: C10L1/04
Filed: 1936-07-03
Abstract: 461,797. Vaporizers. DUTZMANN, W. July 3, 1936, No. 18555. Convention date, July 4, 1935. [Class 7 (iii)] A liquid fuel which is volatilizable with difficulty is atomized with the aid of heat prior to an admixture of air and water vapour ; the mixture is heated and further air supplied to it in stages of which at least one is in the course of the heating and one at the conclusion of the heating. Heavy fuel fed through a nozzle 6 is sprayed against the glowing wall of a hot bulb 10 in the exhaust pipe 2 and the products pass into a mixing chamber 12 having an inlet 13 for air drawn through apertures 17 opposite a moistened wick 14. The mixture is further heated in an inner vertical coil 3, the lower end of which receives fresh air from a pipe 18, this mixture being reheated in an outer coil leading to a mixing chamber 7. In this chamber, a cone 22 controls the passage of the mixture and a suction operated air valve 20 the entrance of a final supply of air. To increase the temperature of the exhaust gases, the cylinders eject them through a nozzle 23 surrounded by air ports, the air permitting the completion of the combustion of the gases.
Patent GB-702444-A (GB)
Title: Improvements in or relating to automatic weigh feeders
IPC: G01G11/00
Filed: 1952-07-22
Abstract: 702,444. Automatic-feed weighers. ABBEY, A. (Dow Chemical Co.). July 22, 1952, No. 18561/52. Class 143 [Also in Groups XXX and XXXV] The rate of feed of a continuous stream of granular material is automatically controlled in accordance with weight by feeding of the material into an almost circular V-trough formed between an endless belt 30 and the bevelled upper edge of a horizontal slowly rotating pulley 22, the belt also passing round a spaced smaller idler pulley 31. The apparatus is balanced through parallelogram linkages maintaining it vertical on a pair of supports 2, on a double arm of a bifurcatd weightbeam 3, the other single and longer arm of which carries a switch element 15 controlling the starting and stopping through a relay, of an electric motor 50 driving a star feeder 49 of a hopper which feeds material into the trough. The longer arm also carries a sliding counterweight which adjusts the rate of feed, and a dashpot 8 which damps the swings of the weighbeam and prevents undue hunting. The discharge from the trough is through a shoot 64. Due to the light weight and high carrying capacity of the trough conveyer the apparatus is more sensitive than feeders with horizontal belts, more of its length being useful. The trough ends are closed by stationary partitions 60, 68, that which is just beyond the discharge end dislodging material sticking to the trough. The pulley 22 is driven by gearing from a motor 27. The tension of the belt 30 is adjusted by transversely adjusting the position of the idler pulley 31 on a slotted portion of the platform 1, by a wing-nut 43.
Patent GB-663496-A (GB)
Title: Plastic milling process and apparatus
IPC: B29C48/12
Filed: 1949-07-14
Abstract: 663,496. Mixing appliances. BAKELITE CORPORATION. July 14, 1949. [Aug. 6, 1949] No. 18643/49. Class 86. Consists in a method of and an apparatus for continuously milling and fluxing a plastic mixture wherein such mixture is passed between a pair of oppositely revolving parallel rolls having co-operating spiral screws, each roll having at least one non- threaded surface thereon, and through a passageway formed between said non- threaded surface and a substantially circumferential barrier projecting from a housing confining said rolls. In the embodiment of Fig. 10 which is a combination of the embodiments of Figs. 7 and 8, not shown, each of a pair of oppositely driven rolls 21, 22, Fig. 2, closely confined within a jacketed housing has intermeshing left- and right-hand screw threads interrupted by a smooth cylindrical surface 79 and by V-shaped non-threaded surfaces 82, 84. The inner cylindrical surfaces of the housing, adjacent the smooth annular surfaces 79 are recessed to receive semi-annular inserts 80, 81 from which barriers of semi-helical formation project towards the surface 79. The inner cylindrical surfaces of the housing. adjacent the annular V-shaped surfaces 82, 84 on the rolls are recessed to receive inserts 42, 36, respectively having inwardly projecting V-shaped semi-annular barriers between which the V-shaped annular surfaces rotate. The mixture is fed into the nip of the rolls through an opening above the surface 79 and is discharged from surfaces 52 by means of rotary or scraper knives, Figs. 3 and 4, not shown. The discharge surfaces 52 may be annularly recessed so that the discharged material is of ribbed cross-section.
Patent GB-1061704-A (GB)
Title: Sewing machines having bobbin thread replenishing means
IPC: D05B59/00
Filed: 1965-05-04
Abstract: 1,061,704. Sewing machines. SINGER CO. May 4, 1965 [May 6, 1964], No. 18691/65. Heading DIG. A bobbin journalled in the rotary looptaker of a lock stitch sewing machine is wound with thread seized by the looptaker beak from a source separate and distinct from the source of the needle thread. The arrangement is a modification of the clamp-feed, group-stitch sewing machine described in Specification 906,397 and in which, during the last revolution of the looptaker, the remant of thread in the bobbin is extracted, while subsequent raising of the work clamp serves to severe the needle and bobbin threads, and re-starting the machine serves initially to re-wind the bobbin with needle thread. During the last revolution of the looptaker in the present arrangement when the needle is raised, a shaft 271 is moved axially, when a follower (294), Fig. 5, not shown, engages a cam (290) on the main rotary cam disc 81, to position adjacent the looptaker an arm 270 which is rigid with shaft 271 and is formed at its free end with an eye carrying thread from a separate spool (300), Fig. 4, not shown, mounted on the sub-base 24 of the machine. This thread is thereby seized by the looptaker beak (50), Fig. 11A, not shown, and is then clamped to the latter by an extension (76) of the rotary bobbin winder (70) which moves into operative engagement with the bobbin (62) when a cam follower (97), Fig. 5, engages a cam (80) on disc 81. A cam (222) then engages a follower (223) to stop the machine. On re-starting the machine, a bellcrank lever 317 is swung by a connection with the cam disc 81, to separate a driving clutch disc 311 on the divided arm shaft 34 from a driven clutch disc 310 to immobilise the needle bar. Bobbin winding continues until follower 97 is disengaged from cam 80 and lever 317 is released to permit a spring 315 to re-engage the clutch discs 310, 311.
Patent GB-120141-A (GB)
Title: Improvements in Draught Excluders for the Drop Lights of Railway Carriages.
IPC: B61D25/00
Filed: 1917-12-17
Abstract: 120,141. Robinson, J. G., and Industrial Appliances, Ltd. Dec. 17, 1917. Vehicle windows; draught and weather excluding means forming part of the sash.-A draughtexcluding flap 4 is hinged to the drop light at 7, and a cam lever or levers 6 attached thereto engages, on the lifting of the light 11, a cam or cams 5, the flap being then pressed against the garnish rail 15. On lowering the light 11 by means of the strap 13 in the ordinary way, the flap 4 hangs vertically and at its lowest point rests on the usual rubber supports.
Patent GB-1393421-A (GB)
Title: Container mounting and dismounting equipment
IPC: B60P1/64
Filed: 1972-04-22
Abstract: 1393421 Container traffic transferring containers A C PENMAN Ltd 22 April 1972 18774/72 Addition to 1336731 Heading B8Q Two modified pulling and pushing means for transferring a container to and from a vehicle by means of inclined ramps engaging projecting rollers on the container as described in the parent Specification are described. In the first embodiment, an arm 2, Fig. 1, is pivoted at 4 to a bracket 6 on the floor 11 of a container and is secured by a chain 8 which allows the arm to fall into a position to be pushed by a cross tube 12 of the vehicle or pulled by a pawl 21 attached to a lever 19 and pivoted in a hole 18 of a plate 17. As the vehicle runs under the container as it is engaging inclined ramps for its unloading the arm 2 remains engaged with the tube 12 so that the container is still moved by the vehicle even when it becomes raised. Normally a handle 24 holds the lever 19 and pawls 21 in the position shown so that as a vehicle backs under the container the arm rides up a plate 14 and then over the pawl 21 which can then pull the container forward with the vehicle until is descends the ramps to rest on the vehicle. To withdraw the vehicle from under a deposited container the handle 24 is moved to allow the pawl 21 to drop into a slot 13 out of an engageable position. In a second embodiment, two pivoted arms 5, 6 are provided which engage a cross tube 4 which push the container off and on to the ramps respectively. The arm 6 runs up a plate 3 to engage the tube 4 as the vehicle reverses while the arm 5 is attached to a spring by a chain 12 so that when a release chain is pulled the spring raises the arm 5 clear of the tube 4 to allow the vehicle to be withdrawn.
Patent GB-642062-A (GB)
Title: Improved coupling for tubes conveying fluid under pressure
IPC: F16L37/32
Filed: 1948-07-13
Abstract: 642,062. Disconnectible couplings. BRUNING, E. F. July 13, 1948, No. 18793. .Convention date, July 29, 1947. [Class 99(1)] Tubes each terminating in a nipple 12, 14 normally closed by a valve 74, 76 having a boss 106, 108 projecting beyond its end face 70, 72 are coupled by a sleeve 36 which locks the nipples in abutting relationship whereupon the valves are opened, locking being effected by means such as telescoping collars 46, 48 which force locking members such as balls held in tapered holes in the sleeve into engagement with the nipples. The collars are urged by a spring 56 against snap rings 52, 54 forming stops limiting outward movement of the collars, grooves 62, 64 in the collars partially receiving the balls when the collars are in the inner positions. The sleeve has a groove 110 to retain a sealing ring 112 with lips 114 and 116 adapted to engage the inner ends of the nipples. The ring 112 may be replaced by a pair of rings of U- sections, Fig. 5 (not shown), or by a single ring of V-section, Fig. 6 (not shown), and the inner ends of the nipples may be tapered and shouldered to engage in O- rings lying in grooves in the sleeve, Fig. 7 (not shown).
Patent GB-502082-A (GB)
Title: Improvements in or relating to inductive heating with low frequency
IPC: H05B6/06
Filed: 1937-07-07
Abstract: 502,082. Heating by electromagnetic induction. FEKETE, A. F., and HALASZ, P. July 7, 1937, No. 18863. Drawings to Specification. [Class 39 (iii)] IN low-frequency inductive heating without a closed iron core, the physical dimensions, the permeability, and the rosistivity of the eddy current carrier, and the frequency and voltage are related to satisfy certain conditions set out in the Specification to give an optimum efficiency and an economical power factor. The Specification also describes requirements to be satisfied by the induction coil in view of eddy current loss therein. The eddy current carrier may consist of a crucible, a lining thereof, or a conducting body arranged in a granular or broken charge. In a modification the carrier is a liquid arranged in an annular vessel surrounding a crucible. In a further modification the carrier is constituted by the tubes of a boiler the inductor being formed by wires arranged axially in the tubes.
Patent GB-182816-A (GB)
Title: Apparatus for the inspection and control of the sparking plugs of explosion engines
IPC: H01T13/58
Filed: 1922-07-10
Abstract: 182,816. Soc. Anon. des AÚroplanes G. Voisin, (Assignees of Besson, L., Delamar, H., and Lafay, A.) July 11, 1921, [Convention date]. Detecting faults; resistances, measuring.- Apparatus for testing sparking-plugs comprises a spark gap e in shunt to the plug gap P and in series with two condensers C1, C2, the condense@ C2 being variable by means of a set-screw V acting on the movable plate. A lens 0 is provided for viewing the spark gap. A spark gap E wider than the plug gap is shunted across the condensers. In an arrangement for testing a series of plugs, lenses are mounted in tubes, which form one of the plates of the fixed condensers, the variable condensers having one common moving- plate. Test leads T may be taken from the condenser C1 as shown. The decrease of resistance due to partial short-circuiting of the plug may be measured in terms of the amount of added capacity required in the condenser C<2> to restore sparking at @.
Patent GB-1220251-A (GB)
Title: Improvements in and relating to double-walled containers for liquefied gases at low temperature
IPC: F17C13/08
Filed: 1968-04-22
Abstract: 1,220,251. Liquefied gas storage containers. MESSER GRIESHEIM G.m.b.H. 22 April, 1968 [26 April, 1967], No. 18927/68. Heading F4P. The inner vessel 1 of a horizontal cylindrical double-walled cold liquefied gas container is held spaced from the outer shell 3 by tension hands 6 extending between spacer boxes 2 welded to each opposite end of the inner vessel 1 and passing through adjustable eyes of a reinforcement ring 4 extending round the inner face of the outer shell 3. The space between the vessel 1 and shell 3 is evacuated and charged with solid heat-insulating material.