baber/WOPTO huggingface dataset:
Patent GB-875159-A (GB)
Title: Improvements in or relating to photographic cameras having coupled exposure meters
IPC: G03B7/00
Filed: 1958-06-13
Abstract: 875,159. Cameras. GAUTHIER G.m.b.H., ALFRED. June 13, 1958 [June 15, 1957], No. 19059/58. Addition to 867,998. Class 98(1) In a camera having setting members for the diaphragm and shutter speed, the said members being coupled to coaxial ring elements which co-operate to control the follow-up member of an exposure meter, as in the parent Specification there is further provided separate adjustment between at least one of the setting members and its associated ring, so that further exposure factors may be allowed for. In Fig. 1 the shutter speed setting ring 3 is coupled to ring 9 which moves axially. The diaphragm setting ring 2 is coupled to ring 10, which is mounted on ring 9 and connected to it. The joint axial movement of rings 9 and 10 is transmitted by a pin 24 to the follow-up member of the exposure meter. In theparent Specification, the rings 9 and 10 are permanently coupled to their respective setting members, but in the present modification, either or both rings can be temporarily uncoupled from the corresponding setting member, and independently adjusted, thus allowing further exposure factors to be taken into account, such as film speed, or filter factors. Ring 10 is moved by a supporting ring 31, which is itself moved by a slide member 32. Within the member 32 is a spring- loaded screw 33 fixed to the ring 31. The lower part 32a of the member 32 engages in one of a series of detent recesses in the diaphragm setting ring 2. By gripping the slide member 32 and pulling upwards against the spring, the part 32a is released from engagement with the ring 2, and the rings 10 and 31 can then be rotated relatively to ring 2. A scale plate carrying a film-speed scale turns with the rings, reading against a fixed index mark. At the appropriate reading, the slide member 32 is released, so that it engages once more in one of the detent recesses in ring 2, thus once more coupling rings 10 and 2 together. The follow-up member of the exposure-meter is thus independently adjusted in a manner corresponding to the film speed.
Patent GB-1268785-A (GB)
Title: Improvements in and relating to magnetic recording arrangements
IPC: G11B21/02
Filed: 1969-04-15
Abstract: 1,268,785. Driving magnetic heads. RICOH K.K. 15 April, 1969 [24 April, 1968], No. 19110/69. Heading G5R. A magnetic record/playback device comprises a head movable in a spiral path to scan a record and automatically returned to the start position when transducing is complete, a pushbutton being provided to start the scanning and to initiate head return during operation. General.-A record sheet 8 (Fig. 1) is located under a translucent cover 9 for co-operation with a head 7 fed radially in a slot 4 in an upper turntable 3. A second push-button controls backspacing and an elapsed time indicator is provided. Head feeding.-The head 7 is resiliently supported, 23, 24 (Fig. 5), on a slide 6 radially movable over a lower turntable 5 and fed by a rack 21 engageable with a spiral-threaded flange 11. During, or at the end of, play a segment 33 is rotated and acts via cams and studs (33a, 27a, Figs. 10, 11, not shown) to raise a disc 27 against spring 29 so as to raise a spindle 20 carrying the rack 21 to disengage the rack and flange, and to engage a spring-loaded rod 26 with a coarse spiral groove 32 (Fig. 4) in the disc 27 so that as the disc rotates the head is driven to the outer, start position, a projection on the rack depressing the head support 23 to disengage the head from the record. Operation.-Depressing the right-hand pushbutton (Fig. 4) moves a lever 56 to rotate clockwise a Y-shaped link 40 until it is latched by a spring-loaded lever 60. A pin 44 on one arm 40b is thereby released from an angle-piece (5b) on the turntable 5, an intermediate drive roller is engaged with the turntable 5 and a motor pulley, and a microswitch 38 is released to start the motor. The turntables 3, 5 are therefore rotated and the head scans the record. At the end of the scan, a projection 19ba (Fig. 5) on the slide 6 engages a lug 33b on the segment 33 to rotate it to a latched position and thereby raise the disc 27 and return the head 7 as above. A lug (5a) on the turntable subsequently engages a linkage to release the segment latch, allowing the segment to return under spring bias 34, and releases the lever 59 latching the link 40 which thereby returns to switch off the motor and disengage the drive roller. Depression of the pushbutton during play pushes the lever 56, which is biased counterclockwise, against a pin 59c on the lever 59 to release the link 40 and halt operation. Depressing the button again restarts operation. Back-spacing.- Depressing another pushbutton operates a lever in engagement with a pin on the segment to rotate the segment a small amount and initiate head return as above, but release of the button terminates return and transducing recommences from the new position. Indicator.-As the head carriage 19 moves radially inward, a cam (81, Fig. 15, not shown) fixed to the carriage engages the top of a rod 13 to move it downwardly and thereby rock a lever (73) to which is attached a cord 75 carrying a pointer 79 movable over scale 80.
Patent GB-379042-A (GB)
Title: Improvements relating to the separation of acetic anhydride from admixture with acetic acid and water
IPC: C07C51/573
Filed: 1931-07-02
Abstract: Acetic anhydride is separated from its mixtures with acetic acid and water by means of a solvent and a concentrated solution of a salt which may be saturated or supersaturated.  Suitable salts are sodium chloride and sulphate and ammonium nitrate, and suitable solvents are aromatic hydrocarbons such as benzene, aliphatic and hydrogenated aromatic hydrocarbons, chlorinated and brominated hydrocarbons, and alcohols, esters and ethers that are difficultly soluble in water. The separation may be effected at low temperatures; for instance at temperatures at which the benzene is frozen, so that the melting of the benzene produces a cooling effect on the anhydride mixture.  In an example the anhydride mixture is shaken with a saturated solution of sodium chloride and benzene, the extract being then dried with anhydrous copper sulphate.  Specification 194,719, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-1088632-A (GB)
Title: Improvements in carrier bags
Inventor: ANDERSON GEORGE DOUGLAS
IPC: B65D33/12
Filed: 1963-05-15
Abstract: 1,088,632. Carrier bags. SMITH, ANDERSON & CO. Ltd. Aug. 14, 1964 [May 15, 1963], No. 19249/63. Heading A4G. A carrier bag of collapsible parallelepipedic form with reinforced bottom has a string loop handle 8 disposed in spaced holes or slots 10 in an upper reinforced closure flap 15 and adapted to pass around a tongue 12 formed by slots 11 in the lower reinforced flap 6. If the loop is single, it passes from the handle through the closed flap openings and lies along the underside of the lower flap. The loop may be doubled by twisting so that two passes lie along the underside, one locking the flaps and lying on the top side and the other forming the handle.
Patent GB-192779-A (GB)
Abstract: 192,779. Planet Foundry Co., Ltd., and Learmonth, J. Nov. 9, 1921. Addition to 112,794. Grates; supports for articles to be heated.-In a barless or semi-well grate as described in the parent Specification, the front grid a, extending well below the vertically adjustable grate-bottom c, is pivoted at its lower edge on studs d', d<2> engaging recessed flanges a at one or both ends of the grid and is held in a vertical or forwardly inclined position by ribs a<2> engaging recesses in ribs f<1>, ,f<2> on the side cheeks e. The top edge of the grate is formed with a roll or curb having a recess for a poker to fit, to adjust the grid. The brackets b carrying the gratebottom c are provided with a bolt or stud c<1> passing through slots in flanges e<1> of the side cheeks c, and they may have a stud d<3> serving as a stop for the grid a. A crow g is supported by a ledge e<2> and a hook h, which engages a slot in the crow, so that the crow may be placed over the fire or be moved over the front grid a in its inclined position. The connection between the crow and the hook h is such that it can only be removed when in its vertical position. A trivet i is detachably and adjustably fixed cn snugs j, k, l, as shown in Fig. 3.
Patent GB-684323-A (GB)
Title: Fuel-saving and soot- and grit-eliminating device
Inventor: MONTENEGROGIZEU JUAN
IPC: F23J11/00
Filed: 1949-07-22
Abstract: 684,323. Regulating air supply. LOZA, E. July 22, 1949, No. 19415/49. Class 126 [Also in Group XII] A device for supplying air through the wall of a chimney to direct inflowing air transversely of the flue gases comprises a tubular member having one or more channels in the shape of a truncated cone or pyramid and means for regulating the opening and closing of the channel or channels. A metal or cement block, Fig. 1, having an outer casing 2 is provided with a number of transversely arranged ducts 3 each in the form of a truncated cone, the device being arranged within a chimney wall so that the larger ends of the ducts 3 are towards the outside of the chimney. Gates 4 pivoted about a vertical axis are provided on the exterior of the device toclose the ducts 3. In an alternative form (not shown) the exterior of the device may be covered by a convex or concave perforated plate and the duct openings may be regulated by a second perforated plate which is placed against the block 1 and which may be rotated on a rod passing transversely through the device. In a modification, Fig. 3, a hollow tube 16 is slidable within a tube 15, the open end towards the outside of the chimney being covered with gauze 14 and provide with controlling louvres 22 hingedly mounted on a bar 9. The inner end 17 of the slidable part 16 is in the form of a truncated cone and is provided with regulatable openings 19.
Patent GB-637720-A (GB)
Title: Separating thiophene from benzoles by distillation
IPC: C07C7/04
Filed: 1946-06-28
Abstract: <PICT:0637720/III/1> Thiophene is separated from benzole by first submitting it to fractionation to remove carbon disulphide and other compounds boiling below 80 DEG  C., then separating a fraction boiling between 80 DEG  and 85 DEG  C., and finally rectifying the 80-85 DEG  C. fraction in a high-efficiency column divided into several sections; thiophene being withdrawn from the base of the first section, and benzene from the head of the last.  Crude benzole is fed from tank A into column B where it is freed from compounds boiling below 80 DEG  C. The bottoms from column B are supplied to column C through pipes 6 and 7, by means of steam-heated jacket T. The vapours of the 80-85 DEG  C. fraction are withdrawn from the head of column C, partly condensed in the heater M of column-section E, and submitted to complete condensation in condenser R1.  Part of the condensate is returned as reflux to the head of column C; the remainder is withdrawn through measuring device 11, supplied to tank D, and rectified in column sections E, F, G which are arranged to function as if they were superposed.  The circulation of the reflux liquids from sections F and G is effected by steam-heated jackets L and K respectively.  Benzene vapours are withdrawn from the head of section G, and condensed in condenser Q.  Part of the condensate is returned to head of section G, and the remainder is removed from the system through measuring device N.  Thiophene is withdrawn from the base of section E through pipe 22 and cooler P.  Moderate vacuum is applied at outlet V of condenser Q and enables the vapours from the head of column C to supply, via heater M, all the heat required for column-sections E, F, G.  Alternatively column C may be operated at a moderate pressure about atmospheric.  Specification 441,518 is referred to.
Patent GB-287379-A (GB)
Title: Improvements in apparatus for optically projecting light of varying colours
IPC: A63J17/00
Filed: 1927-07-22
Abstract: 287,379. Doyle, J. T. July 22, 1927. Optical-projection apparatus.-Apparatus for projecting light of changing colours on to a screen comprises a number of colour filters which are arranged in the beam and are variously masked, so as to vary the projected colour mixture, by opaque or semi-opaque areas on a film fed across the beam; the colour filters may be arranged between the projecting lens and its focus, so that the screen is illuminated by a mixture of the colours of the filters. Fig. 2, shows red, green, and blue filters arranged in sectors and used in a kinematograph projector in conjunction with a kinematograph film, Fig. 5, having opaque areas 9, 10 varying in form. Modifications in the arrangement of the filters and opaque areas are described, and the filters may be separated by opaque areas, the opaque areas on the film being then of constant areas but being variously placed. The colour filters may be arranged on a disc which is rotated in synchronism with the film feeding mechanism to bring each filter in turn into the beam, the film being fed at three times the usual speed and being provided with opaque areas appropriate to each filter. The film may be opaque and have suitable areas punched from it.
Patent GB-1417504-A (GB)
Title: Variable-geometry nozzles for jet propulsion engines
IPC: F02K1/08
Filed: 1973-04-24
Abstract: 1417504 Jet propulsion nozzles - variable geometry SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 24 April 1973 [2 May 1972] 19462/73 Headings F1G and F1J The invention relates to a variable geometry nozzle for a jet engine of the axially-movable centre plug type. The nozzle comprises an outer fixed casing 4 comprising upstream and downstream frames 1, 2 connected by members 3. A centre body 5 is disposed coaxially within the outer casing 4 and comprises a fixed support structure 8 and an axially-movable centre plug 6 mounted thereon. The support structure 8 is supported from the frame 1 by means of three tangential struts 15 which are secured at their inner ends to an outer ring 12 which is pivotally connected to an intermediate ring 14 in the vertical plane y-y, the intermediate ring being pivotally connected to an inner ring 13 in the horizontal plane z-z', the ring 13 being secured to support structure 8. The movable plug 6 is mounted on the support structure 8 by means of three rails 9 mounted on the structure 8 and three sets of rollers 10, 11 mounted within the movable plug 6 and which engage the rails 9. Each roller 11 is associated with a pair of rollers 11a, 11b which co-operate with the side faces of the rails 9. The plug 6 is axially movable by means of four screw type actuators 20 each comprising a screwed rod 22 and a screwed nut 21 engaged thereon, the nut being connected to the plug 6 by means of a strut 26 which extends across the annular gas flow passage 7. Each screwed rod is rotated by a control unit 23; each screwed nut 21 carries two rollers 24 which engage guide tracks 25 carried by the fixed structure. The nozzle is shown in Fig. 1, in the position for supersonic flight, the plug member 6 being retracted so as to define a convergent divergent nozzle; the plug is moved to the projected position 1a not shown in which it defines a convergent nozzle, for subsonic flight. The invention is applicable also to variable geometry air intake ducts.
Patent GB-204442-A (GB)
Title: A method of and means for improving the germinating qualities of hard clover and other hard seeds
IPC: A01C1/00
Filed: 1922-07-15
Abstract: 204,442. Stevenson, R. July 15, 1922. Germination, assisting; scouring.-In order to improve the germinating properties of hard clover seeds &c., they are treated in bulk in such a way as to subject them to mild attrition for a considerable period by maintaining them in a layer which is in substantially constant contact with, and in motion relative to, an abrasive surface, so that the hard skins or the over-ripened seeds are scratched or scarified without being mechanically injured or chipped, and the skins of the normally ripened seeds are not damaged. The seeds may be impelled against the abrasive surface by a blast etc.; and motion may be imparted to the abrasive surface. The apparatus shown comprises an inclined cylindrical casing a having within it a rotary impeller d that throws the seeds against the casing, which is lined with abrasive material such as garnet cloth, emery cloth, or woven wire. If the casing is of cast iron, the abrasive lining may be dispensed with. The seeds pass into the casing from a hopper g provided with a regulating slide, and are discharged through a shoot i.
Patent GB-789513-A (GB)
Title: Improvements in polishing metal articles
IPC: B24C1/00
Filed: 1954-07-03
Abstract: 789,513. Abrasive blasting. ASHWORTH, N. I. July 4,1955 [July 3, 1954], No. 19548/54. Class 60. A process for obtaining a high polish or smooth surface on a hard metal article consists in subjecting the surface to the cutting action of abrasive particles projected thereon in a stream of air or steam and afterwards subjecting the surface to a more delicate cutting action by abrasive particles projected thereon in a stream of liquid to lubricate the surface being cut by the abrasive particles and tocause the cutting action to be concentrated on the protruberances left by the preceding treatment of the surface. The surface may be finally treated by projecting a premixed body of liquid and abrasive on to the surface without the aid of a fluid propellant, e.g., by means of a rotary pump. The surface of an article, e.g., a die or press tool, is first treated by abrasive grit (alumina 60-80 mesh) mixed with water and projected from a spray gun by air or steam under a pressure of 80-120 lbs./sq. in. The surface is then subjected to the action of abrasive grit (80-850 mesh) mixed with water and projected from a spray gun by water at 80-120 lbs./sq. in. The surface is finished by projecting a premixed body of abrasive grit (60-100 mesh) and water from a rotary pump to give a pressure of 40 lbs./sq. in. on the surface. Cutting oil may be used instead of water in all three stages.
Patent GB-335581-A (GB)
Title: Improvements in and connected with painters and other like brushes
IPC: A46B9/02
Filed: 1929-06-26
Abstract: 335,581. Jones, H. A. June 26, 1929. Scrapers.-A hand brush for house decorators &c. comprises a bristle-carrying body 1 to which is detachably connected a handle 3, the handle carrying a scraper 6 for use when the handle is removed from the body. The edges of the body part and the handle are adapted to engage with each other, e.g. by forming a V-section channel 4 in the edge of the body part and a correspondingly shaped pointed edge in the handle part, the scraper extending from the apex of the pointed edge, and accommodated in a. slot 5. The body part and handle are provided with inter-engaging coupling parts. e.g. resilient tongues 7 adapted to engage in loops 8.
Patent GB-1503528-A (GB)
Title: Mandrel for gathering fanned-out sire loops
IPC: B21C47/30
Filed: 1975-05-09
Abstract: 1503528 Mandrels for receiving coiled wire SCHLOEMANN-SIEMAG AG 9 May 1975 [13 May 1974] 19717/75 Heading D1T A mandrel for gathering fanned-out wire loops coming from a rolling mill train into coils 7, for transporting the coils and for holding them during pressing and packaging comprises a central post 1a, an outwardly projecting support surface 4' for the coils 7 at one end of the post 1a, and a plurality of struts 2 arranged in a circle about the post 1a to form a mandrel circumference, the struts 2 being guided at both ends so as to be movable radially relative to the axis of the mandrel, and the end of the mandrel opposite to said surface 4' being tapered as at 6 to cause the coils 7 to be centred on the mandrel. As shown there is a lower conical surface 4 over which the struts 2 can slide so as to move both radially and axially, the upper ends of the struts being guided by guide elements 5 In a modified construction the conical surface 4 is absent and the struts 2 are biassed outwardly by springs.
Patent GB-493005-A (GB)
Title: Improvements in and relating to the manufacture of products comprising dextrose
IPC: A23G1/00
Filed: 1937-07-16
Abstract: The water of crystallization is removed from dextrose hydrate as by heating to 160 to 200 DEG  F., the material being then ground to give a soft non-gritty powder which may be mixed with an edible fat and other desired ingredients to produce a food compound.  In examples: (1) a chocolate covering comprises hard vegetable butter or other fat, cocoa, dry skim milk, sucrose, the dextrose, salt and vanillin; (2) a white hard butter coating comprises hard butter, the dextrose, salt and vanillin; (3) a sandwich filling comprises soft butter, dry skim milk, sucrose, the dextrose, salt and vanillin.  Specifications 227,140 and 232,160, [both in Class 127], are referred to.
Patent GB-861087-A (GB)
Title: Improvements in or relating to fuel oil feed systems for furnaces
IPC: F23D11/28
Filed: 1959-06-10
Abstract: 861,087. Supplying liquid fuel to burners. BOSCH G.m.b.H., R. June 10, 1959 [June 20, 1958]. No. 19803/59. Class 75 (1). The supply of liquid fuel to a burner 13 from a pump 3 is controlled by a valve 7 actuated by the fuel pressure and adapted, when the pressure is low, to close a channel 11 leading to the burner 13 and to allow the fuel to flow through a restriction 26 into a return passage 16 connected to the suction side of the pump, and, when the pressure increases, to open the channel 11 and stop the flow through the restriction 26 and when the pressure exceeds a predetermined upper pressure, to allow the fuel to flow directly to the suction side of the pump. The restriction 26 is formed in the valve 7 between an axial passage 25 extending from the front surface of the valve and radial passages 24 leading to a circumferential groove 22 on the valve. When the pressure is low the groove 22 communicates with the return passage 16 but, as soon as the valve opens the burner feed channel 11, the groove 22 is closed by the valve casing 5. When the pump is stopped a spring 8 returns the valve 7 to the starting position and the valve sucks oil from the burner through a relief channel 14 in the casing into a chamber 30. The initial movement of the valve 7 on restarting the pump forces some of the oil in the chamber 30 to the burner but when the valve opens the burner supply passage 11 it simultaneously closes the relief channel 14 and opens passages 28 in the valve leading from the chamber 30 to a leakage channel 18 connected to the return passage 16.