baber/WOPTO huggingface dataset:
Patent GB-734733-A (GB)
Title: Improvements in discharge valves
IPC: F16K29/00
Filed: 1953-08-05
Abstract: 734,733. Controlling distribution of liquids. LARSSON, J. O. Aug. 5, 1953 [Aug. 8, 1952], No. 21632/53. Class 21. [Also in Groups XXIX and XXX] Liquid borne solid material in a pressure vessel 12 is distributed substantially continuously to two or more points by a discharge valve which comprises a valve plug 11 continuously rotated in a cylindrical housing 10, by a motor or other driving means 31, the valve plug having an end surface 17 facing upstream and being provided with grooves or channels 15 opening at one end into this end surface and at their other ends into the cylindrical surface of the plug, so that the outlet end of the channels 15 register periodically for brief moments with outlet ports 13 formed in the wall of the housing 10. The two diametrically opposite grooves 15 are of the same width or slightly less width than the opposed outlet ports 13 formed at the ends of inclined outlet branches 14 of the valve housing 10. The plug 11 has an extension spindle 18 on which is splined a chain wheel 25 driven from the electric motor 31 and prevented from axial movement by bearings 27, 28. The total flow is varied by axial movement of the plug 11 by a hand-operated screw 24. The screw operates on a block 21 axially movable in a guide 22 and supporting a ball thrust bearing 20 for the spindle 18.
Patent GB-769557-A (GB)
Title: Apparatus for clearing snow or ice from road and the like open-air surfaces
Inventor: TARRANT ARTHUR GEORGE
IPC: E01H5/12
Filed: 1953-08-05
Abstract: 769,557. Cleaning non-tubular surfaces. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 5, 1954 [Aug. 5, 1953], No. ,21659/53. Class 99(2) [Also in Group X] A snow and ice clearing machine comprises a hammer breaker and rolling cutter mounted on a wheeled chasis, the two units being adjustably positioned vertically by means varying the position of the running wheels. The rolling cutter (Fig. 5) comprises blades 14 between discs 11-23, the device cracking ice, or compacting snow, as it passes over. The hammer breaker (Fig. 1) then breaks up the snow &c. Hammers 17 are carried on arms 22 pivoted about points 18 limited movement so that they do not rebound into a radially inwards position, nor do they assume a position pointing tangentially forward. The hammer breaker is driven, by an engine, by a belt as shown.
Patent GB-241169-A (GB)
Title: Process of preparing fish for canning
IPC: A23B4/00
Filed: 1925-08-31
Abstract: 241,169. Beard, H. R. Oct. 7, 1924, [Convention date]. Drawings to Specification. Food, treating; preserving flsh.-Fish is prepared for canning by cooking in a chamber with a rapid current of heated air, the fish being conveyed through the chamber in a direction substantially parallel to that of the air current. In the process described, the fish if deficient in natural oil or fat may, after cleaning, decapitation, gutting, washing, and brining, be first passed on a wire screen belt through a chamber where it is treated with a current of air having a velocity of 1500 feet per minute ahd heated say to 140‹ F., so that the skins of the fish are toughened and the fish partially dried. In this step, means are provided for shifting the fish from one position to another to subject the entire outer surface to the heated air. The actual cooking is then effected by passing the fish on wire trays carried by a chain belt or the like through a chamber where it is treated with a current of air having a velocity of 1500-2000 feet per minute and heated to a higher temperature, say to 325‹ F., and finally passing it through a cooling chamber where the air current may have a velocity of 1500-2000 feet per minute and a temperature of from 60‹ to 70‹ F. The fish is then canned, sealed up, and sterilized. Smoking may be effected in any of the above steps by introducing smoke with the air current.
Patent GB-670076-A (GB)
Title: Improvements in or relating to the recovery of organic acids from mineral oil residues
Filed: 1948-08-18
Abstract: Mineral Oil acids viz. naphthenic acids and naphtha sulphonic acids ("mahogany" acids), are separated from mineral oil residues in which they occur in the form of water-soluble or water-dispersable soaps along with water-insoluble constituents by a process which comprises cutting back the residue with a mineral oil fraction of a slower density than the average density of the water-insoluble constituents and then treating the cut back residue with aqueous extractant consisting of an aqueous solution containing at least 80 per cent by weight of water and substantially free from any substances such as inorganic salts of strong acids, which would prevent or diminish the solution or dispersion of the soaps in water, the treatment with the aqueous extractant being effected at above 100 DEG  C. to give an aqueous layer containing the soaps in solution or dispersion and a separate oil layer containing the water insoluble constituents of the residue.  Preferred temperatures are between 130 DEG  and 180 DEG  C. In the case of naphthenic acids the weight ratio of extractant to residue is preferably between 1.6 : 1 and 26.25 : 1 and in the case of mineral oil residues containing naphtha sulphonates the corresponding ratio is preferably between 0.08 : 1 and 5.25 : 1. Preferably the aqueous extractant comprises water containing from 5 to 10 per cent by weight of an alcohol.  In examples: (1) a mineral oil residue containing all naphthenates as sodium naphthenates is cut back with heavy cylinder oil and then extracted continuously with water at 160 DEG  C. in an autoclave; (2) a mineral oil residue as in (1) is cut back with 10 per cent by weight of gas oil and then extracted with aqueous alcohol at 180 DEG  C.  The aqueous layer is then treated with mineral acid to isolate the naphthenic acid.  In a comparative example the step of cutting back the mineral oil residue is omitted.  In the continuous process it is stated that the aqueous layer resulting from the extraction treatment may be pumped through a mixing nozzle with a solvent capable of preferentially extracting oil therefrom, e.g. a light hydrocarbon fraction such as a benzine of narrow boiling range and passing to a second settling tank to obtain an aqueous layer and an upper petroleum layer containing some oil originally in the aqueous solution of salts.
Patent GB-531599-A (GB)
Title: Process and apparatus for securing accurately butted ends for welding thin sheet or strip metal
IPC: B23K11/00
Filed: 1939-07-27
Abstract: 531,599. Magnetic work holders. WILLIAMS, W. P. (Armco International Corporation). July 27, 1939, No. 21879. [Class 60] [Also in Group XXII] In butt welding the ends of metal strips, the ends are first sheared by looping them under a given pressure and area and then shearing, and then clamping them in a butted relation in clamps under the same area and pressure as in the shearing operation and then welding. A sheet 17 is placed on a table 8 of a shearing machine against a guide and is clamped thereon by a plate 16 carried by the cores 14 of a number of electro-magnets carried by the head 11 which is connected to the movable blade 10 by a lost-motion device so that the clamp comes into action before the blade and is lifted by the blade when the latter is raised. The welding clamps 20, 21 have their lower jaws consisting of pole pieces 24, 25 secured to the cores 26 of electro-magnets. The pole pieces 24, 25 are connected to each other by depositing therebetween by welding a mass of non- magnetic-metal 28 such as' copper. The upper and lower jaws are provided with perforations 31, 29 for the supply of a coating medium such as water so as to maintain constant temperature of the clamps.
Patent GB-574278-A (GB)
Title: Improvements relating to handgrips
IPC: B61D49/00
Filed: 1943-12-31
Abstract: 574,278. Handgrips for vehicles. COLLINS, A. F., and LONDON PASSENGER TRANSPORT BOARD. Dec. 31, 1943, No. 21891. [Class 103 (iv)] A handgrip or straphanger comprises a ferrule 1 fixed to the roof of a vehicle and a ferrule 3 slightly spigotted into 1 and moulded or secured to the body 8. The body 8 is resiliently connected to the ferrule 1 by a spring 6 bearing on the end flange 9 of a tube 5 and on a nut 7 attached to a rod 4 extending through the tube and connected by an eye 4<1> to an eye 2 fixed in the ferrule 1. When the body 8 is gripped it descends against the pressure of the spring 6 and disconnects the spigot to permit free movement of the hanger. When the grip is released, the spring presses the spigot together to maintain the hanger in a vertical position.
Patent GB-531652-A (GB)
Title: Improvements in circuits for operating high-pressure metal-vapour electric dischargedevices
IPC: H05B41/18
Filed: 1939-07-28
Abstract: 531,652. Discharge lamps. GENERAL ELECTRIC CO., Ltd., and FRANCIS, V. J. July 28, 1939, No. 21963. [Class 39 (i)] [Also in Group XXXV] A H.P.M.V. lamp is started by means of an auxiliary transformer 2, 3 the primary circuit of which is closed by a switch 5. To prevent a short circuit of the secondary at starting via the stabilizing impedance 6 and primary 3 a high impedance-preferably a resistance 7-is included in the starting circuit, this resistance being short circuited by the switch 5 when it is open and the lamp running normally supplied from the terminals 4. The switch 5 may be in the secondary circuit. On a D.C. supply a condenser is arranged in series with the switch 5 and primary 3 across the terminals 4.
Patent GB-1436020-A (GB)
Title: Method of manufacturing moulded articles in a powder compression moulding machine
IPC: B29C33/00
Filed: 1974-05-17
Abstract: 1436020 Powder compression moulding KIKUSUI SEISAKUSHO Ltd 17 May 1974 [30 Nov 1973] 22007/74 Heading B5A [Also in Division G3] Both the weight and the thickness of powder compression moulded articles are automatically controlled by adjustment of a "weight rail" 12 and a compression roll 24 respectively when the measured value of these variables is outside respective ranges. A mould is defined by plungers 6 and 7 in an orifice 5; three of many in a circular, rotatable arrangement are shown. Powder from a hopper 14 is introduced at position a, the quantity, and hence the weight of the article, being determined by the height of plunger 7 which is adjusted by a servomotor M1 via screw and nut 18, 19 acting on the rail 12. Compression occurs at b, the extent of this, and hence the thickness of the article, being determined by the height of roller 24 which is adjusted by servomotor M2 via screw and nut 25, 26. The article 16 is ejected at c into a shoot 17 which has a movable deflector 31 to direct a sample article to a measuring station. This comprises a turntable 34 with an orifice 35. Thickness is measured by a differential transformer 36 having a movable core and the article is then dropped on to an electronic weigher 38. The signals from 36, 38 operate indicators IT, IW and are applied through threshold devices LT, LW to comparators ST, SW. The threshold devices define upper and lower acceptable limits for their respective variables and the comparators have reference values midway between the limits. If the limits are exceeded ST and/or SW produces an output proportional to the deviation of the measured value from its reference to operate the appropriate servomotor M1 or M2 until a position feedback signal from an associated potentiometer 22 or 29 equals the deviation.
Patent GB-1008759-A (GB)
Title: Flight control system
IPC: G05D1/08
Filed: 1962-06-07
Abstract: 1, 008, 759. Automatic control of aircraft. SPERRY RAND CORPORATION. June 7,1962 [June 7, 1961], No. 22026/62. Heading G3R. In a system producing a signal representing responsiveness of an aircraft to a command signal for moving the aircraft about an axis, a signal dependent on actual movement of the aircraft about the axis is divided by the command signal. In Fig. 4, signals produced by the pitch pick-off of a gyro-vertical 26 and a rate of pitch detector 32 are added at 34 to control, through an amplifier 28, a servo-system 30 operating elevators 24 to maintain a desired pitch attitude. The response of the aircraft to such control is measured by a pitch angular accelerometer 18, comprising two linear accelerometers, signals from which are divided at 20 by a signal from a potentiometer 22 dependent on the angle of elevator deflection. The signals from divider 20 vary the gain of amplifier 28 inversely so that total response is maintained constant. The effect of any steady deflection of the elevators on the divider circuit is eliminated by a washout filter 36. Use of signals from a rate of climb detector or a vertical accelerometer instead of signals from an angular accelerometer is described.
Patent GB-188796-A (GB)
Title: Improvements in or relating to children's bedsteads or cots and similar railed frame-like structures
IPC: A47D7/00
Filed: 1921-08-20
Abstract: 188,796. Wales, Ltd., and Warren, W. A. Aug. 20, 1921. Dropside cots; joints and connections.-Drop-side cots, children's play pens &c., comprise end frames, the uprights a of which, together with horizontal bars f, carry dowel pins h, e to engage holes in the bars i and b. The lower bar k of the detachable or drop side carries pins n engaging slots o in the uprights a, and securing means for the dowel connections are provided, such means comprising, for example, a pivoted stirrup or yoke s engaging a pin r. The relative position of the. dowels and the holes which they engage may be reversed.
Patent GB-854076-A (GB)
Title: Rotary surface grinding attachment
Inventor: TILLINGS PERCY WALTER
IPC: B23Q1/38
Filed: 1958-07-10
Abstract: 854,076. Grinding. MACKENZIE & A. N. PORTER Ltd., J. G., [trading as BROADWAY (BRISTOL) ENGINEERING CO.]. July 8, 1959 [July 10, 1958], No. 22182/58. Class 60. A rotary grinding attachment for securing to the body of an existing reciprocable surface grinding machine comprises a housing 2, a power-driven spindle 7 rotatably mounted therein, a work-table 15 secured to the spindle for receiving a work-holding chuck and means 30 for readily securing the housing to the body of the machine. The table 15 has concentric annular grooves 16 in its upper face to engage corresponding ribs on the underface of a chuck and a series of holding screws 17 around its periphery. The spindle 7 is supported by a main thrust bearing 6 but the table 15 is supported by an annular face 19 which forms a subsidiary thrust bearing directly beneath the point of application of pressure from a grinding wheel 18. Grooves 19a are formed in this surface to reduce friction and to aid lubrication which is further facilitated by a spring-loaded roller 20 which is urged into contact with the bearing surface 21 of the table 15, the roller 20 being partly increased in an oil bath 26 formed in the housing portion 5 and supplied by an oil reservoir 27a. Lubricant is also supplied to the spindle bearings 6 and 8 via leads 31. The  clearance between the annular bearing surfaces 19 and 21 may be adjusted, to maintain the oil film between them, by means of an interchangeable accurately ground ring 28 of hardened steel. The table 15 as described with reference to the Figure accompanying the Provisional Specification may carry a circular plate located by a second, inner, concentric groove in its upper face to form a centring device for a magnetic chuck.
Patent GB-954964-A (GB)
Title: Improvements in or relating to illuminated advertising devices
IPC: G09F19/10
Filed: 1962-06-08
Abstract: 954,964. Advertising signs. W. FURCHTBAR. June 8, 1962 [June 10, 1961], No. 22203/62. Heading G5C. An advertising device simulating a filled container is provided with a double wall of a plastic material such as polymethacrylic ester and is illuminated at least from below and from the inside. Figs. 1 and 2 show an advertising device for simulating a glass of beer and comprises a base 1, for example of sheet metal in which an annular fluorescent tube 14 or other light source is mounted. Outer and inner walls 2, 3 and the curved bottom 4 are inserted into base 1 and a top plate 8 simulates a foam head, the parts 2, 3, 8 being made of suitably coloured plastic material. Individual pearls 12 for example of ground glass, are threaded on thin transparent strings 11 within the container between plates 5 and 6, "runs" 9 and drops 10 further simulate the effect of a filled glass of beer. An additional annular light source may be located in the foam head, a shadow effect may be produced by revolving or reciprocating a sector-shaped blade driven by an electric motor above the lower light source and the "pearls" may be given the appearance of rising or moving bubbles by movement of the threads on which they are suspended by means of a further electric motor, Figs. 3-6 (not shown). Specification 874,871 is referred to.
Patent GB-1255835-A (GB)
Title: Improvements in the manufacture of components by the hydrostatic compression of powder
Inventor: ISAKSSON SVEN-ERIK
IPC: B22F3/04
Filed: 1969-05-01
Abstract: 1,255,835. Isostatic compression mould. ALLMANNA SVENSKA ELEKTRISKA A.B. 1 May, 1969 [2 May, 1968], No. 22203/69. Heading B5A. In a process wherein rods or tubes are moulded from powder 10, which may subsequently be sintered, by compression within a yieldable tube 5 e.g. of rubber or plastics, enclosed in a chamber containing liquid under pressure, an enlarged mould part on the exterior of a mould opening has a surface 7 co-planar with the opening and a lid 8, which fits into the enlarged part, has a surface 9 inclined to the surface 7 e.g. at 45 degrees or more, to define an annular space whereby, upon compression of the mould 5, the surface 7 is slidingly displaced over the interior surface of the lid 8, so that the mould 5 is compressed to the same extent in the region of the opening as elsewhere. In the manufacture of tubes, a core is centered in the mould by lids at either end thereof.
Patent GB-373487-A (GB)
Title: Improvements in refrigerators
IPC: F25D3/12
Filed: 1931-08-05
Abstract: 373,487. Refrigerators. CRIBB, G. D. G., Aldwych House, Aldwych, London. -(Carba Akt.-Ges.; Liebefeld, Berne, Switzerland.) Aug. 5, 1931, No. 22218. [Class 29.] A glass &c. vacuum-jacketed vessel 3 containing solid carbon dioxide enclosed in a canvas bag 7 is disposed beneath an opening in the floor of the storage space of a domestic &c. refrigerator, heat being conducted from the space to the ice by a zinc or aluminium cylinder 8. In a modification, the cylinder is replaced by a chain suspended from a stand 5 for the goods to be cooled.
Patent GB-149620-A (GB)
Title: Improvements in spanners or wrenches
IPC: B25B13/12
Filed: 1920-07-26
Abstract: 149,620. Blair, A. W. Aug. 7, 1919, [Convention date]. Wrenches.-A wrench comprises a pair of jaws mounted in a head so as to move obliquely outwards or inwards and at the same time relatively apart or together, and a handle pivoted to the head and so connected to the jaws that the latter are closed on the nut when the handle is turned in the operative direction, and opened by reverse movement of the handle, enabling the wrench to be used in the same manner as a ratchet wrench. As shown in Fig. 2, the rear angled portions of the jaws F, G are mounted in inclined guides formed by the edges of a jaw-block E and a pair of blocks B<1> secured between cover-plates B, to which the handle A is pivoted at a, the jaws being operatively connected by links H, H' to a lug D on the handle. A spring C normally maintains the jaws in retracted position. Instead of actuating the jaws by means of links, the handle may be formed with an enlaregd head having a slot eccentric to its part a to engage projections on the jaws. The wrench may be adapted for positive hand-grip by providing the head B with a second handle. The block E may be shaped, as shown, to engage hexagonal nuts, or square for square nuts, and one or both of the outer ends of the jaws F, G may be formed with an inward extension G<1>.
Patent GB-630655-A (GB)
Title: Improvements in gyratory crusher operating mechanism
IPC: B02C2/06
Filed: 1947-08-11
Abstract: 630,655. Gyratory crushers. KENNEDY, J. E. Aug. 11, 1947, No. 22284. Convention date, Aug. 14, 1946. [Class 59] A crusher of the gyratory type comprises a main crusher shaft, the lower portion of which is surrounded by a bottom plate, an annular sleeve depending from the bottom plate and extending around the lower portion of the shaft in spaced relation thereto, an eccentric sleeve rotatably supportetd within and by the depending annular sleeve around the main shaft for gyrating the shaft, a straight sleeve mounted directly on the lower portion of the main shaft inside the eccentric sleeve and in which the shaft may move axially, a ball and socket joint structure between the eccentric sleeve and the straight sleeve, and a set of vertical cylindrical roller bearings between the ball and socket joint structure and the straight. sleeve. In a sleeve 18 depending from the machine frame is journalled in long vertical roller bearings 34 and horizontal supporting roller bearings 32 an eccentric 36 in which is eccentrically formed a socket for a ball member 40 and a flanged sleeve 38. A sleeve 44, mounted directly on the lower end of a crusher shaft 16 to allow relative axial movement, is journalled in long vertical roller bearings 42 and horizontal supporting roller bearings 46 in the ball member 40. The eccentric 36 is driven by a pulley member 54, 57 surrounding, but spaced from, the depending fixed sleeve 18. This pulley may be driven by an electric motor, the stator 58 of which is carried by the sleeve 18 and the rotor 62 by the pulley. Lubricating oil is circulated by a pump 82 through a filter 80 and pipe 78 over the bearings and back through pipe 88 or draining into an annular trap 73 back through pipes 92 and 84.
Patent GB-966839-A (GB)
Title: Improvements in and relating to axial thrust bearings
IPC: F16C33/10
Filed: 1963-06-05
Abstract: 966,839. Bearings; lubricating. PHILIPS GLOEILAMPENFABRIEKEN N.V. June 5, 1963 [June 8, 1962], No. 2342/63. Heading F2A. A thrust bearing comprises a supporting member and a rotating thrust member, one of which members is provided over at least part of its surface with uniformly distributed grooves, the centre line of each of which forms part of a helix such that when the shaft rotates, lubricant is forced by the grooves into the bearing. The lubricant has a consistency such that, when the shaft is stationary, the lubricant forms a solid substance and is accumulated mainly near the entrances of the grooves; and when the shaft is rotating, the lubricant is forced into the bearing and produces a lubricating film between the bearing members. In an embodiment, a shaft 1, carrying a rotor 7, has at each end a spherical thrust member 2 seated in a hemispherical cavity in a supporting member 3 which is carried by a holder 4. Each thrust member 2 is provided over part of its surface with grooves 5, the centre line of each of which forms part of a helix. Lubricating fat 6 is provided near the entrance of the grooves and caps 8 prevent dust &c. from entering the bearing. When the shaft rotates, lubricant is forced into the grooves and is pressurized. In a modification, the thrust members are conical-shaped and the cavity in the supporting member is shaped accordingly. The above bearings resist radial and axial forces, but, if a bearing is required to resist thrust only, the grooves are on the face of the thrust member which is in engagement with a flat surface of the supporting member. As an alternative the grooves may be provided on the supporting member.