baber/WOPTO huggingface dataset:
Patent GB-415051-A (GB)
Title: Improvements in or relating to supersonic heterodyne receivers for wireless and like reception
IPC: H04B1/26
Filed: 1933-02-13
Abstract: 415,051. Valve circuits for wireless reception. ELECTRIC & MUSICAL INDUSTRIES, Ltd., Blyth Road, Hayes, and OSBORNE, C. P., Mirabelle, Harlington Road, Hillingdon, both in Middlesex. Feb. 13, 1933, No. 4435. [Class 40 (v).] The frequency of the local oscillator of a superheterodyne receiver, is controlled by a harmonic of the intermediate frequency. Incoming signals are amplified at 2, Fig. 1, and combined in a first detector 4 with oscillations from a local source 3 to produce the intermediate frequency which is amplified at 5 and detected at 6. The intermediate frequency f1 is fed to a tetrode 10 whose screen grid circuit 13 is tuned to an harmonic mf of the intermediate frequency. A circuit 15, tuned to a higher harmonic nmf (= frequency of the local oscillator), is connected in the output of valve 10 and controls the frequency of the local oscillator. A heptode valve 17, Fig. 2, may combine the functions of the local oscillator 3 and control valve 10, the intermediate frequency being applied at terminals 23, the circuit 24 being tuned to mf and the circuits 21, 22 being tuned to the local frequency. Alternatively, a dynatron 17, Fig. 3, may be used, circuit 15 being tuned to the local frequency, circuit 13 to mf and the intermediate frequency being applied to terminals 23.
Patent GB-819630-A (GB)
Title: Improvements in or relating to bar-type grinding and mixing machines
IPC: B02C4/18
Filed: 1958-02-11
Abstract: 819,630. Roller-and-bar mills. SCHOFFEL, L. Feb. 11. 1958 [Feb. 11, 1957], No. 4487/58. Class 59 A bar-type grinding machine comprises a member for pressing the grinding bar against the front wall of a feed hopper, the feed hopper being movable into and out of operative position; means for adjusting the grinding bar radially with respect to the grinding roller, and a control member which is arranged to be actuated when the feed hopper nears and leaves its operative position, the control member controlling the movement of the pressing member in such a manner that the pressing member presses the grinding bar against the front wall of the feed hopper when the feed hopper nears its operative position and relieves the pressure on the grinding bar when the feed hopper leaves its operative position. As shown, a grinding roller 1 is rotatably mounted in a machine frame 2 to which is pivoted a feed hopper 3 carrying a grinding bar 4 which is displaceable radially with respect to the roller 1 by known means (not shown) and is arranged to be pressed against the front wall of the hopper 3 by means of one or more pins 5 each attached to a piston 9 guided in a cylinder 6 and biased away from the grinding bar 4 by means of a spring 8, the, or each, cylinder 6 being mounted in an extension 7 of the hopper 3 and being connected by a pipe line 9<SP>1</SP> to a control cylinder 10 disposed in the hopper 3, the, or each, cylinder 6 forming together with the pipe line 9<SP>1</SP> and cylinder 10 a closed hydraulic system the pressure in which is adjustable by means of a regulatable piston 13 movable in a cylinder 11 and the pressure being indicated by a gauge 17. The cylinder 10 accommodates a piston 14 having attached thereto a control pin 15 which is co-operable with an abutment surface 16 on the machine frame 2. When the hopper is swung away from the roller 1, the, or each, pin 5 is held in a retracted position in its cylinder 6 by the spring 8 and at the same time the pin 15 is caused to project out of the cylinder 10 to its fullest extent. When the hopper is swung on to the roller 1, the pin 15 bears against the abutment surface 16 and is pushed, with its piston 14, into the cylinder 10 thereby causing the, or each, pin 5 to be pushed out of its respective cylinder 6 to press the bar 4 against the front wall of the hopper. Alternatively, the control pin may be arranged to be actuated by the pivoting movement of the hopper itself. Further, the hydraulic system may be replaced by a mechanical one.
Patent GB-1455739-A (GB)
Title: Acid amides
IPC: C07D295/145
Filed: 1974-07-26
Abstract: 1455739 Benzylpyrimidines F HOFFMANLA ROCHE & CO AG 26 July 1974 [27 July 1973] 04561/76 Divided out of 1455736 Heading C2C Compounds of the general formula (R<SP>1,2</SP> = alkyl, alkenyl) are prepared by condensing the corresponding 4-(3<SP>1</SP>-anilino-2<SP>1</SP>-cyanoallyl)-2,6-disubstituted benzamide with guanidine. The preparation of 3,5-dimethoxyterephthalamic acid and its methyl ester, 2,6-dimethoxy-4- methylsulphonylacetylbenzamide, 2,6 - dimethoxy- 4 - (1<SP>1</SP> - hydroxy - 2<SP>1</SP> - methylsulphonylethyl)benzamide and 4 - (3<SP>1</SP> - anilino - 2<SP>1</SP> - cyanoallyl)- 2,6-dimethoxybenzamide is described.
Patent GB-1124031-A (GB)
Title: Synthetic sheet material
Inventor: TESSIER JOSEPH DONATIEN LEO
IPC: B29C48/17
Filed: 1965-02-02
Abstract: A leather-like sheet material composed of polyacetal resin and having the form of a nearly continuous and integral matrix of interconnected ligaments of the said resin interspersed with elongated voids is made by melt-extruding a mixture of particulate isotactic polypropylene and particulate polyacetal resin in which the latter is present in an amount from 30-70% by weight to give a sheet and removing the polypropylene from the sheet by solvent extraction. The polyacetal resins which may be used are preferably obtained by polymerization of trioxan.  Preferred leaching solvents are hot xylene or perchloroethylene.  The polymer particles, which may be in the form of powder or fine flake, have a size between 28 and 200 mesh.  The melt index of the polyacetal at 190 DEG  C. is between 1 and 20 and of the polypropylene at 230 DEG  C. is between 1 and 40.  The sheet material has a bulk density of 0.014-0.028 lb./cu. inch and a thickness of 0.002-0.03 inch.  The voids and the ligaments have a diameter less than 0.1 mm.
Patent GB-279774-A (GB)
Title: Process and apparatus for the purification of liquid hydrocarbons by liquid sulphur dioxide in counter current
IPC: C10G21/10
Filed: 1927-02-18
Abstract: 279,774. Allgemeine Ges. fur Chemische Industrie. Nov. 1, 1926, [Convention date]. Mineral and tar oils, purifying.- -In the purification of mineral and tar oils by liquid sulphur dioxide in countercurrent the velocity of the ascending oil is reduced immediately before or after leaving the tower to facilitate separation of entrained dioxide. This may be effected by making the discharge head H wider than the purifying tower T as shown, or by giving it an inverted cone shape or by discharging the refined oil into a chamber wider than the tower and provided with a tube for returning the settled dioxide to the tower.
Patent GB-725826-A (GB)
Title: Improvements in or relating to pre-stressed concrete structures having curved or cylindrical walls
IPC: E04H7/20
Filed: 1953-02-19
Abstract: 725,826. Prestressed reinforced concrete. WILLS, L. G., and HOLST & CO., Ltd. Jan. 7. 1954 [Feb. 19, 1953], No. 4723/53. Class 20 (4), [Also in Group XXIX] A reinforced con crete structure, such as a cylindrical tank for liquids, having a wall moved about ar upright axis has ten sioned reinforcing rods or wires 11 arrangec in the wall and inclinec to the horizontal at ar angle which increase: from the bottom to wards the top of the tank. As shown, eacl wire is horizontal at the bottom of the tank and extends upwards in both directions, the portions 13 which extend in one direction lying outside the portions 14 which extend in the other direction. The wires are placed in position, concrete is poured in using suitable shuttering, and the wires are subsequently tensioned and anchored at their upper ends 12. In a modification one end of each wire is anchored at the bottom, the other end being tensioned at the top. In a further form in which both ends of each wire are anchored at the top, tensioning, such as by means of a coupling box, is effected at a point below the top of the wall, but in the upper part thereof. In another embodiment some wires terminate at the top of the wall and others at a point part way up the height thereof.
Patent GB-490605-A (GB)
Title: Improvements in or relating to teleprinter apparatus
IPC: F16D43/18
Filed: 1937-02-17
Abstract: 490,605. Friction clutches. CREED & CO., Ltd., and SALMON, R. D. Feb. 17, 1937, No. 4770. [Class 80 (ii)] A drum 4 fixed to a gear 3, which is loose on a motor-driven shaft 5 and which is geared to teleprinter apparatus, is clutched to the shaft by means of segmental masses 10 which, at one end, have secured thereto bent clips 6 engaged by tongues 11 projecting from a plate 14 secured to the shaft. Under centrifugal action, the masses 10, which have friction facings secured thereto by the clips 6, tilt about the tongues 11 into driving engagement with the drum. A spacing sleeve 9 fits loosely on the shaft 5 between the disc 14 and the end wall of the drum 4.
Patent GB-215848-A (GB)
Title: Improvements in or relating to floatable bodies
IPC: B63C9/08
Filed: 1923-02-19
Abstract: 215,848. McCaskill, J. C. H. Feb. 19, 1923. Body attachments, inflatable and buoyant; buoys. - An inflatable body for use in aquatic sports such as water polo is of elongated form adapted to be straddled by the user. Preferably, the body has a contour resembling a head 11 and body 10 of an animal. The body is formed of flexible material. such as rubber, the form shown in Fig. 3 being made of two flat rubber blanks secured along the edges by a strip of rubber cemented and vulcanized in place. The body is inflated through a tube 12 with or without a non-return valve, may be embellished as with eyes &c. of the animal represented, and may have eyelets provided along the lower seam for attachment of balancing weights.
Patent GB-762985-A (GB)
Title: Improvements in or relating to the construction of fractionating or like columns
Inventor: GOLDWIN JAMES RICHARD
IPC: B01D3/20
Filed: 1954-02-18
Abstract: 762,985. Contacting gases with liquid. LOUGHBOROUGH GLASS CO., Ltd. Feb. 18, 1955 [Feb. 18, 1954], No. 4795/54. Class 55 (2). A gas-liquid contact apparatus comprises a column of detachably connected sections 1 with a plate 5 between each section, the plates having holes to receive removable vapour risers 9, each of which has a bubble cap 11 integrally united to the upper end of the vapour riser 9. As shown, a glass column comprises sections 1 having externally flanged ends or enlarged tapered parts 2 which are clamped together by pairs of clamping rings 3, split-rings 4 and bolts. The circular plates 5 are positioned between the sections using gaskets 6. Tapered holes 7a, 7, in plates 5 receive downcomer pipes 8 and vapour risers 9, the latter being locked by pins (not shown), passing through holes in the walls of the risers and engaging the undersides of plates 5. The bubble cap 11 has a slotted skirt 11a and communicates with the interior of the vapour riser at the upper end through holes 9b in the riser. In a modification the cap 11 is moulded with an annular bulge around the skirt portion and is slotted. In a further modification each vapour riser has a lower portion for insertion in a cylindrical hole in the plate and has a flange which rests upon the upper surface of the plate, the riser being fixed by a pin. Alternatively the risers may be detachably mounted by screw-threaded or bayonet connections. The holes in the plates may have surrounding frusto-conical or cylindrical flanges into or over which the end of a riser or downcomer pipe may fit. The column may be of metal, earthenware or plastic material.
Patent GB-501947-A (GB)
Title: Improvements in thin sheet covered aircraft bodies, wings and the like
IPC: B64C1/00
Filed: 1937-09-10
Abstract: 501,947. Aircraft structures. A.T.S. CO., Ltd., and NORTH, J. D. Sept. 10, 1937, No. 4862 /38. Divided out of 480,685. [Class 4] In an aircraft structural component comprising a thin sheet metal covering to which are secured longitudinal stringers and main transverse frames, intermediate transverse frames are provided which are of such a size that their outer edges or flanges extend only to the inner edges or flanges of the stringers. As applied to the rear portion of a fuselage, Figs. 1, 3 and 6, a sheet metal covering panel 11 is secured to bowed angle strips 14 which when interconnected by securing adjacent edge elements of the covering panels form main transverse frames and are braced by web plates 40. Stringers 12 of Z-section are secured to the panels and by angle cleats to one flange of each strip 14. The edge stringers 13 may be angle bars. Intermediate part frames comprising bowed edge members 17 and bracing 18, 19 are of such diameter as to contact the inner flanges of the stringers which are secured thereto by rivets or the like. Alternatively complete transverse frames may be used and the stringers are secured indirectly to the intermediate frames by means of brackets 21, Fig. 7, which have one flange secured to the frame and the other arranged to lie inside and to support the outer flange of the stringer. Attachment may be by screws or by rivets adapted to be closed from the outside of the structure and passing through the covering.
Patent GB-675045-A (GB)
Title: Tractor-mounted agricultural machinery
Inventor: SAVAGE WILLIAM LAWRENCE
IPC: A01D78/00
Filed: 1950-02-24
Abstract: 675,045. Agricultural machines. BLACKSTONE & CO., Ltd. Sept. 12, 1950 [Feb. 24, 1950], No. 4863/50. Classes 6(i) and 6(iii) An agricultural machine such as an inclined hay-rake 3 is connected to a threepoint linkage on a tractor by connecting devices which allow the machine to be swivelled about a vertical axis. As shown, a plate 19 on the machine is pivoted to a bar 17 attached to the lower hitch links 7, 8. Slots 20, 20 co-operate with bolts 21 mounted in the bar 17 to lock the machine in any position to which it is set. The upper hitch link 11 is attached to a fork member 13 pivoted on a vertical axis to the machine frame. Adjustable castor wheels 5, 6 are provided to run on the ground in any adjusted position of the machine. Specification 675,046 is referred to.
Patent GB-117277-A (GB)
Title: Method and Apparatus for Continuous Fractionation and Continuous Dephlegmation of Petroleum or other Hydrocarbon Distillates or Mixture of Volatile Liquids.
Inventor: HAMILTON JAMES
IPC: C10G7/00
Filed: 1917-04-10
Abstract: 117,277. Hamilton, J., (Allan, H. L.). April 10, 1917. Rectifiers. - Apparatus for the fractional condensation of the vapours of petroleum and other liquids consists of a series of units each heated to a temperature sufficient to minimize the condensation and to cause the re-evaporation of that portion of the material which is not desired in the particular unit. Each unit consists of a vessel A surmounted by tubes ; B' which are cooled by the atmosphere or by water supplied by distributors J and collected by a tray L. The condensate collects in the chamber A which is fitted with closed and open steam pipes E, F to maintain the desirec. temperature. Reference has been directed by the Comptroller to Specifications 1269/14 and 16713/14.
Patent GB-1371148-A (GB)
Title: Windscreen wiper arm
IPC: B60S1/34
Filed: 1972-02-03
Abstract: 1371148 Mounting windscreen wipers on shafts SWF-SPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU GmbH 3 Feb 1972 [9 Feb 1971] 5016/72 Heading F2U A shaft mounting 12 for a windscreen wiper arm has pivoted thereto about a common axis. (e.g. a pin 16) a pivot arm mounting 11 and a cover 18 for the shaft end. The mounting 28 may have two guides 28 for a yoke 14 connected to a spring, the guides having slots 30 allowing the cover to be raised to 18<SP>1</SP>.
Patent GB-179337-A (GB)
Title: Improvements in bottle filling machines
IPC: B67C3/24
Filed: 1921-02-14
Abstract: 179,337. Allen, J. H., and Semark, F. W., (trading as Brewers Equipment Co.). Feb. 14, 1921. Bottling. - In bottle-filling machines of the type in which a pan a, Fig. 1, kept filled to a constant level with liquid bv a float valve b or the like is provided with pivoted siphon draw-off devices c, c<1>, closed when not in use by contact of a valve c<2> with a resilient pad f in the pan, spring-jawed clips g are provided on the pan to receive the necks of the bottles positioned on the limbs c<1> of the draw-off devices during the inward and downward movement of the bottles to open the valves c<2>. The spring clips are preferably mounted on extensions e<2> of the brackets e, on which the devices c, c' are pivoted at d. Each clip pneferably comprises lengths of phospor bronze or like non-corrodible wire bent as shown in Fig. 4, to form out-turned ends g<1>, parts to receive the bottle neck, loops g<2> of one or more coils encircling securing-bolts i, and ends g<3> bearing against the bracket e.
Patent GB-430840-A (GB)
Title: Improvements in or relating to the capping of electric lamps and the like
IPC: H01J9/34
Filed: 1934-02-15
Abstract: 430,840. Electric incandescent lamp caps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, and PENNELL, L. G., Osram G.E.C. Lamp Works, Brook Green, Hammersmith, both in London. Feb. 15, 1934, No. 5058. [Class 39 (ii)] In the capping of electric lamps and the like having an envelope from which leading-in wires extend, a process of threading leading-in wires of a soft or thin and resilient natures, such as a fuse wire, through a hole or holes in the cap comprises drawing a wire through the hole by a rod formed with a hook which engages the wire. The operation may be performed manually or automatically. In one form the device comprises a collar 1 with an internal diameter slightly greater than that of the cap, and provided with diametrically opposite grooves 2 which receive the bayonet pins of a cap inserted therein. A strap 3 across one end of the collar carries a pair of rods 4 extending longitudinally and so arranged that when a cap is positioned within the collar they pass through the holes in the base. A hook 5 is formed at the end of each rod. The collar may be supported in a stand comprising a clamp 6 with lugs 7 for attachment to a support. In operation a cap is threaded on to the rods 4 and positioned within the collar, the leading-in wires are hooked on to the hooks 5 of the respective rods, and the cap is drawn off the rods so that the leading-in wires become threaded through it. In an automatic device the hooked rods are mounted above a pair of jaws which are adapted to be opened automatically to receive a lamp cap and are mounted on a support which is raised vertically by a cam or the like in order to pass the hooked ends of the rods through the holes in the cap. The leading-in wires, which are sealed within the neck of a bulb mounted below the rods, are then looped over the hooks and the cap is lowered from the rods on to the neck of the bulb. The jaws are subsequently opened to release the cap.
Patent GB-329030-A (GB)
Title: Improvements in separators
IPC: B03B5/72
Filed: 1929-02-15
Abstract: 329,030. Sproul, J., and Sproul, J. O. Feb. 15, 1929. Inclined-trough and endless-belt wet-separating apparatus.-An endless conveyer on which the material to be separated, is subjected to the action of jets of washing water is constructed of skips of scoop-like configuration having inclined bottoms so shaped that the longitudinal section of the material in a. filled skip is approximately wedgeshaped, the apex being the leading edge, the rearend of the skip being curved to form a dam. Skips A with sloping bottoms a<1> are articulated together by transverse bars b<1> which pass through the rear portion of the sides a5 of a skip and the front overlapping portion a5<1> of the sides of the following skip, the rear end a4 of the preceding skip and the front a2 of the following skip being formed to overlap the transverse, bar to prevent leakage at the joints. The transverse bars b' terminate in rollers B which travel in guides C attached to the sides of a trough D. The material to be separated is supplied from a hopper E with a rotatable pocketed feed cylinder e<1>, and water is supplied from a tank F through pipes f<1>, f<3> leading respectively to the bottom of the hopper E and to an adjustable hopper f<5>. The skips forming the endless conveyer are driven by one or more pairs of sprocket wheels S mounted on a shaft S1, the arms S4 of the wheels engaging with the transverse bars b<1>. The water carries the lighter materials in a direction opposite to the direction of motion of the conveyer, and the light material is removed by a conveyer H working in a perforated casing through which the water drains back into the trough D, from which it is conveyed by a pump P to the tank F. The heavy material is trapped by the rear ends a4 of the scoop-shaped skips and discharged by the conveyer K. The trough with the conveyer &c. is hinged about the centre of the driving sprocket wheel so that its inclination can be adjusted. The angle of slope of the bottom of the skips is varied according to the relative specific gravities of the constituents of the mixture to be separated, and the depth and length of the skips according to the size of the particles being treated.
Patent GB-452048-A (GB)
Title: Improvements in cam mechanisms having textile or other applications
IPC: D04B27/08
Filed: 1935-02-16
Abstract: 452,048. Cams ; knitting-machines. BRITISH CELANESE, Ltd., 22, Hanover Square, London, and KINSELLA, E., c/o British Celanese, Ltd., Spondon, near Derby. Feb. 16, 1935, No. 5108. [Class 80 (iii)] [See also Group VIII] A cam-follower roller comprises a rim supported on a ring of rubber in a state of compressive strain. The invention is particularly applicable to mechanisms working at high speeds and is described in its application to the knitting-machine disclosed in Specification 391,803, [Group VIII], wherein a cam 17 actuates a lever 11, Fig. 1, pivoted at 12, and carrying the needle bar 1. The heel of the lever has slots 16 to carry, adjustably, pins 14 on which the follower rollers 15 are mounted. The pins 14, Fig. 2, have enlarged portions on which are mounted the follower hubs 24 retained in position by flanges 25. Surrounding the hubs are rims 27, and between rim and hub is forced a ring 26 of oil-resisting rubber which is thus in a state of compression. The pins 14 are adjustable by screws 22, and the needle bar is actuated positively in both directions. In modifications, (1) a single follower is employed and (2) two followers are mounted at the ends of a Y-shaped lever and engage different cams. Specifications 391,806, 391,808, [both in Group VIII], and 392,175 also are referred to.
Patent GB-833970-A (GB)
Title: A device for indicating the progression of compound-meter hands
IPC: G09D1/00
Filed: 1956-02-20
Abstract: 833,970. Calculating-apparatus. ROSE, W. H. Feb. 28, 1956. [Feb. 20, 1956], No. 5128/56. Drawings to Specification. Class 106 (1). A device for checking or verifying meter reading comprises a plurality of graduated discs which in operation are concentrically mounted with respect to the photographic image of one of the meter dials.