baber/WOPTO huggingface dataset:
Patent GB-693599-A (GB)
Title: Improvements in or relating to motion picture projectors
IPC: G03B21/20
Filed: 1951-05-04
Abstract: 693,599. Kinematograph projectors. GENERAL PRECISION LABORATORY, Inc. May 4, 1951 [May 16, 1950], No. 10590/51. Class 97 (i). Fluid pressure is applied against at least one side of the film at the gate and is so modulated that the pressure difference between the two sides of the film opposes film movement due to its heating while exposed at the gate. A single modulated air blast may be used, or two differentlymodulated blasts or one modulated blast and one steady blast. The modulation may be by increasing or decreasing the pressure. The rotary valve shown controls the supply of air from the pipe 34 to the pipe 36 leading to the jet which directs it on to the film. The valve is used in a projector in which each film frame is projected twice. As the member 42 rotates in synchronism with the film movement the cutaway portion 42b provides a blast, at the start of the first projection period, to displace the centre of the film frame at the gate, the pressure being gradually cut off as the film buckles in the same direction due to heating. The cutaway portion 42a produces a smaller blast to displace the film, at the start of the second projection period, to counteract the reduction of buckle due to cooling since the first period.
Patent GB-1509062-A (GB)
Title: Process for forming an alloy containing non-dendritic primary solids
IPC: B22D11/01
Filed: 1975-03-14
Abstract: 1509062 Mixing apparatus MASSACHUSETTS INSTITUTE OF TECHNOLOGY 14 March 1975 [10 July 1974] 10649/75 Heading B1C [Also in Divisions B3 and C7] An alloy melt in a vessel 2 heated by induction coils 3 is discharged through one or more agitation zones 10, 11, 12 each provided with a screw 16, 17, 18 the clearance of which is small enough to provide shear sufficient to prevent the formation of dendritic networks. The size of the inlets can be altered by adjustable baffles 7, 8, 9 and of the outlets by axial adjustment of the screws. The agitation zones have induction heating coils 25, 26, 27 and cooling jackets 28, 29, 32. In another embodiment, (Fig. 2 not shown) the agitator has splines (56).
Patent GB-626246-A (GB)
Title: Improvements in or relating to methods of producing carbon resistors
IPC: F27D11/02
Filed: 1947-04-22
Abstract: <PICT:0626246/III/1> <PICT:0626246/III/2> <PICT:0626246/III/3> In a continuous process carbonizing machine designed to produce carbon coated resistors the porcelain rods are coated according to the composition of a hydrocarbon gas as they travel through an open work section, Fig. 2, of the metal guide tube 1 within the hot zone of the reaction chamber 7.  Perforated spacers 16, Fig. 3, support the guide tube 1 within an outer refractory tube which defines the electrically-heated reaction chamber 7.  The inner wall of the latter may be lined with metal as at 19.  The open work section, spacers and metal lining may form part of or constitute a unitary structure inserted into the reaction chamber tube 7.  A stream of neutral gas charged with carbon vapour entering through tube 12 and leaving at 13 may flow through the chamber 7 or the latter may be evacuated and hydrocarbon vapour admitted and regulated by a needle valve.  A water jacket 14 cools the carbon-coated rods as they emerge from the hot zone of the furnace.  The porcelain rods drop from a feeding rail 3 and enter the tube 1 through a lengthwise aperture.  The forward stroke of a plunger 5 operated by crank-shaft drive 6 pushes the rods through the guide tube 1 on its forward stroke and at its maximum back stroke a further rod enters the tube 1 as a discharge is effected at the opposite end.  The gas inlet tube 12 may have orifices along a length within and parallel with the reaction chamber 7. Specifications 392,376 and 473,658 are referred to.
Patent GB-178468-A (GB)
Title: Improvements in or relating to brushing apparatus
IPC: A47L11/02
Filed: 1922-04-13
Abstract: 178,468. Roth, E. April 16, 1921, [Convention date]. Floors, cleaning.-In brushing-apparatus for cleaning or polishing floors the frictional resistance of the floor is overcome by weights fitted to the brush and to which a reciprocating, circular, or pendulum - like movement is imparted. In the construction shown in Fig. 1 and 2, two weights 6 pivoted on pins 3 are eccentrically mounted in the brush and are operatively connected to each other by means of gear wheels 5, one of which is driven by a pinion 2 keyed to the spindle of an electric motor 4. The brush is moved to and fro in the direction 7 when the centrifugal forces produced by the revolution of the weights exceed the friction between the brush and the floor. In the construction shown in Fig. 4, a support 3 in the brush carries a driven shaft 2 fitted with a crank arm and pin 4 reciprocating a weight 6 by means of a connecting rod 5. The friction of the brush on the floor is overcome when the reaction on the support 3 becomes sufficiently large.
Patent GB-881486-A (GB)
Title: Improvements in or relating to hardenable polysulphide mixtures
IPC: C08L81/00
Filed: 1960-03-25
Abstract: A hardenable polysulphide mixture is made thixotropic by incorporating therein up to 5% by weight of ethylene glycol or glycerine.  The exemplified mixture contains the polysulphide known under the Registered Trade Mark "Thiokol LP32", soot, silicon dioxide, zinc sulphide and glycerine to which a hardener, such as cumene peroxide, may be added.  Alternatively the hardener and the glycerine may be pre-mixed.
Patent GB-582556-A (GB)
Title: Improvement in blinker signalling device
IPC: G09B19/00
Filed: 1944-06-05
Abstract: 582,556. Signalling by visible signals. EINSON-FREEMAN CO., Inc. June 5, 1944, 10748. Convention date, Aug. 26, 1943. [Class 118 (ii)] A signalling device comprises a pair of relatively slidable front and back members 10 and 12, the front member having apertures 11 which register alternately with light and dark areas 13, Fig. 8, on the back member. The device is manually operated against the action of a springy panel 22 hinged to one of the members and having one edge fixed with respect to the other. In the form shown, the panel 22, strengthened by a leaf spring 23, is hinged to the member 12 and to a bracing panel 14 to which is hinged the member 10 and a further reinforcing panel 16, an aperture 17 being provided for the leaf spring. The device may be made from a single sheet of material (Fig. 5) which is folded as shown in Figs. 7 and 8, a flap 20 hinged to the panel 14 being then folded over and secured to the underside of the member 10.
Patent GB-1106564-A (GB)
Title: Apparatus for use on mobile machines for aligning railway track and a method of using the apparatus
IPC: E01B29/04
Filed: 1965-03-15
Abstract: 1,106,564. Track aligning machine. F. PLASSER, [trading as FRANZ PLASSER BAHNBAUMSCHINEN]. 15 March, 1965 [16 March, 1964], No. 10781/65. Heading B7N. A railway track aligning machine comprises a track lifting arrangement 4, 5 disposed in advance of the leading wheels 2 of the machine, a receiver 10 disposed at a fixed height above each rail 3 of the track which receives a light beam 6 directed parallel to the desired position of the associated rail by a light transmitter 8 mounted on a trolley 7 in advance of the aligning machine, and a measuring device including a beam interfering member 13 maintained by members 12<SP>1</SP> and 12<SP>11</SP> at a fixed distance above the rail at the lifting position. The machine also includes means for terminating the operation of the lifting means associated with each rail when the associated light beam is obscured by the member 13 and means operated in response to a cross level error for reducing the height of the measuring member associated with the low rail by a fixed arbitrary amount to allow the lifting means to re-operate to correct the error. A number of arrangements for reducing the height of the measuring member are disclosed.
Patent GB-513495-A (GB)
Title: Improvements in and relating to motor horse boxes and other vehicles of a like character
IPC: B60P3/04
Filed: 1938-04-08
Abstract: 513,495. Animal-carrying vehicles. CURTIS, T. H. April 8, 1938, No. 10824. [Class 108 (i)] [Also in Groups XXV and XXXI] In a mechanically-propelled animal carrying vehicle, having a ramp 1 providing access to the interior of the body 2 and means for fastening the ramp in its closed position, a device is provided adapted to preclude normal propulsion of the vehicle or alternatively or additionally to actuate a warning signal within the sight or hearing of the driver until or unless the fastening means has been actuated to secure the ramp in its closed position. As shown, horizontal bolts 3, 4 on the ramp 1 are adapted to engage sockets or crutches 5, 6 on the body and are controlled by vertical arms 7, 8 pivoted on the ramp. The free end of each bolt is adapted to co-operate with a movable contact 13, Fig. 3, carried by a support 15 in the form of a spring - pressed hinge and mounted adjacent a fixed contact 17 which is connected by lead 19, Fig. 2, with one end of the coil of an electromagnetic relay switch 20, the other end of which is connected with the armature 21, and through the lead 22 with the engine ignition switch. The armature 21 has contact surfaces 23, 24 for engaging either the contact 25, which is connected by a lead 26 with the ignition coil, or the contact 27 which is earthed through an electrical signal lamp 28. Hence when the ramp is closed with the bolts in locking position, the coil of tne relay 20 is de-energised and there is an uninterrupted connection between the engine ignition switch and ignition coil, while, when the bolts are withdrawn, the relay 20.is energised and the armature 21 raised so that the contact 24 engages contact 27 and interrupts the connection between the engine switch and ignition coil and the circuit is completed through the lamp 28. Another construction of electric circuit is also described. Specification 471,778 is referred to.
Patent GB-1507503-A (GB)
Title: Means for producing lift
IPC: B64C23/02
Filed: 1975-03-14
Abstract: 1507503 Kites: toy aeroplanes, &c. GARDNER FORD TECHNOLOGY Ltd 10 March 1976 [14 March 1975] 10824/75 Heading A6S [Also in Division B7] A rotor for producing lift and mounted on a support 10 for rotation about a horizontal axis comprises two vanes 26, 28 extending between circular end plates 22, 24. Each vane extends from the centres of the end plates to the periphery thereof and comprise a flat radially extending inner part and a flat outer part inclined to the inner part. In other embodiments the rotor has three vanes, the vanes have their inner ends shortened so that there is a gap between each vane and the horizontal axis, the end plates extend beyond the outer edges of the vanes, and two rotors are axially aligned on a single support. The rotor may be used to form a kite or a hank - glider or as wings for toy aeroplanes &c. or man - powered aircraft.
Patent GB-493625-A (GB)
Title: Fine adjustment device for the brake magnet of an electricity meter
IPC: G01R11/10
Filed: 1937-04-16
Abstract: 493,625. Eddy current brakes. WILSON, J. H., and JOHNSON, S. April 16, 1937, No. 10857. [Class 103 (i)] [Also in Group XXXVI] The pivotally mounted brake magnet of an electricity supply meter is adjusted relative to the usual disc armature a by means of an inclined or cam surface operatively associated with the magnet through a slowmotion device such as a screw or other reduction gear. The brake magnet b is fixed to a plate c pivoted at f to a bracket g rigid with the meter frame h. The plate c carries a pin i projecting through an arcuate slot g<1> in bracket g and forced into engagement with a cone nut l by a tension spring k. The nut is prevented from rotating and threaded on a screw m freely rotatable in a fixed bracket n but prevented from axial movement so that rotation of screw m axially adjusts the cone nut l which through the pin i and plate c rotatably adjusts the brake magnet. The nut l could alternatively be fixed to the screw m which would then move axially in its support when rotated. In a modification, the pin i, Fig. 4 (not shown), is adjusted through a cam rotated through worm gearing.
Patent GB-1511602-A (GB)
Title: Protein having thymus hormone-like activity
IPC: C07K14/765
Filed: 1976-03-18
Abstract: 1511602 Compositions containing human serum prealbumin SYNTEX (USA) INC 18 March 1976 [24 March 1975 18 July 1975 17 Feb 1976] 11009/76 Heading A5B [Also in Division C3] An injectable pharmaceutical solution useful for increasing immunological competence comprises a therapeutically effective amount of human serum prealbumin, essentially free from cytotoxic impurities and from normal human blood serum, dissolved in a pharmaceutically acceptable non-toxic solvent. Such a prealbumin may be prepared by subjecting a Coha IV-1 blood fraction to (a) molecular filtration on a hollow fiber fractionator to exclude material having a M.W. above 60-70,000 daltons and below 10,000 daltons and (b) chromatography on a polysaccharide gel column OR by subjecting the Cohn IV-1 fraction to (a) ammonium sulphate fractionation and (b) chromatography on a polysaccharide gel column.
Patent GB-832261-A (GB)
Title: Improvements relating to the knotting of the ends of textile threads
IPC: B65H69/04
Filed: 1957-04-04
Abstract: 832,261. Knot-tying. ZELLWEGER Ltd., FACTORIES FOR APPARATUS & MACHINES USTER. April 4, 1957 [April 4, 1956], No. 11040/57. Class 112 Two threads b, laid side by side, are knotted together by forming a loop a therein, winding the thread ends c around the threads b at the base of the loop for a turn and a half, as at d, passing the ends c through the loop, and pulling the threads to tighten the loop. In apparatus, Fig. 4, for forming the knot a hollow mandrel 1 is mounted on a casing 3 and slidably supports a rod 4 which is formed at its outer end with a hook 5 and is linked at its inner end by a pin 7 with a lever 8 adapted to be oscillated by means of a cam 9 carried by a shaft 10. An ejector 11, slidable in a longitudinal groove formed in mandrel 1, is linked at its inner end by a pin 12 to a lever 13 adapted to be oscillated by a cam 14 on shaft 10. A gear 15 on shaft 10 meshes with a gear 16, the hub of the latter being journalled on mandrel 1, and gear 16 rotating three times for each revolution of shaft 10. A sleeve 17, keyed to but slidable on the hub of gear 16, carries at its outer end a thread-gripper 18 and is formed at its inner end with a circumferential groove engaged by a fork 19. The later is fixed to one end of a slidable rod 20 linked at the other end by a pin 21 to a lever 22 adapted to be reciprocated by a cam 23 on shaft 10. The arrangement is such that the ends c are seized by the gripper 18 and are carried around the mandrel 1 to form the loop a, the outer end of the loop lying inwardly. During the next revolution and a half of the gripper, sleeve 17 is moved successively outwards, inwards and finally outwards to form the loop d and to place the thread ends in the hook 5. The latter is then retracted to pull the thread ends through loop a to form the knot. The ejector 11 then moves outwardly to remove the knot from the mandrel, and finally the threads are pulled to tighten the knot and to release the ends from the hook. In a modification, Fig. 9, the knot is formed by a rotary bill which is carried by a shaft 34 and comprises a fixed blade 32 and a movable thread-cutting blade 33. A gear 36 on a shaft 34 meshes with a gear 37 on a shaft 38, shaft 34 rotating twice to each revolution of the latter. A lever 42 is adapted to be oscillated by a cam 39 on shaft 38, and carries an arm 43 formed with a thread-holding notch 44 adapted to carry the thread ends c from one side to the other of the knotting bill.
Patent GB-561702-A (GB)
Title: Improved polyamide compositions
IPC: C08K5/10
Filed: 1942-08-07
Abstract: A composition suitable for use in the manufacture of filaments, films, sheets and coatings, comprises a synthetic linear polyamide plasticized with a mixture consisting of a solvent plasticizer and a neutral completely esterified ester of a carboxylic acid in which at least one of the alcohol residues is the residue of an aliphatic carboalkoxy alcohol, wherein the organic radical connecting the alcoholic hydroxyl and the carboalkoxyl group contains not more than 6 carbon atoms.  The plasticizers may be incorporated with the polyamides by solution in a common solvent, or by melt blending. Many polyamides, many solvent plasticizers and many neutral esters are specified. Examples are given of compositions comprising: (1) an interpolyamide prepared from hexamethylenediammonium adipate and caprolactam, plasticized with a mixture of amyl-benzene-sulphonamide and butyl carbobutoxymethyl phthalate; (2) a polyamide from hexamethylenediammonium adipate, epsilonaminocaproic acid and 12-aminostearic acid, plasticized with a mixture of amylbenzenesulphonamide and butyl carbobutoxymethyl phthalate; (3) the interpolyamide of example 1, plasticized with a mixture of amylbenzenesulphonamide and 2 - methoxyethyl[carbo(2-methoxyethoxy)-methyl] phthalate. Chloroform and methanol may be present in the compositions, which latter may be used in the production of yarns, fabrics, bristles, rods, films, sheets, safety glass interlayers, adhesives, electrical insulations, moulded articles, and impregnating and coating compositions.  Specifications 461,236, 461,237 and 561,701 are referred to.
Patent GB-1342452-A (GB)
Title: Combining conveyor arrangement for articles such as bottles
IPC: B65G47/68
Filed: 1972-03-09
Abstract: 1342452 Endless conveyers JOS SCHLITZ BREWING CO 9 March 1972 [22 March 1971] 11114/72 Heading B8A' Bottles &c., arriving at random on a conveyer 3 are transferred into single file on a conveyer 4 by side guides 8, 9 extending diagonally across respective belts 3, 4 and spaced above the conveying surfaces 6, 7 of the belts 3, 4 by a distance exceeding the diameter of the bottles whereby fallen bottles may be discharged from the conveyers. The side guide 8 comprises a plurality of rollers 12 arranged on a series of vertically disposed spindles 13, the rollers on adjacent spindles being vertically off-set and overlapping each other. The rollers produce a vibration of the bottles and prevent jamming of the bottles between the guides. The downstream end of the guide 8 has a resilient member 24 mounted thereon and protruding into the path of the bottles to be engaged by and thereby stabilize the bottles. Further guides 26, 27 arranged downstream of the guides 8, 9 have a portion A-B disposed towards one side of the conveyer 4 such that the guide 26 is at a distance less than the radius of the bottles from the opposed edge of the conveyer whereby fallen bottles will roll from the conveyer.
Patent GB-1035425-A (GB)
Title: Improvements in or relating to a visual aid teaching machine
IPC: G09B7/06
Filed: 1965-03-16
Abstract: 1,035,425. Teaching machines. VISUAL PROGRAMMING Inc. March 16, 1965 [March 16, 1964], No. 11207/65. Heading G5G. A teaching-machine comprises a film projector and frame advancing mechanism to project multi-choice questions on a screen 11, Fig. 1, under the control of a knob 13, and a row of switches a, b, c, d corresponding to the multichoice questions whereby one only of the said switches operated will produce an indication implying a correct answer. The film is contained in a cassette 12, Fig. 5, and advanced by sprockets 19, 20, Fig. 3, on a shaft 21 rotated by the knob 13. A chain 36 couples the shaft 21 to. a drum 40 carrying a sleeve 38 wherein apertures 39 indicate a correct answer if the correct switch a, b, c or d is pressed, a circuit being thereby completed which closes the circuit of an indicator lamp 14.
Patent GB-1304582-A (GB)
IPC: C01F7/043
Filed: 1970-03-09
Abstract: 1304582 Producing aluminium by melt electrolysis METALLGESELLSCHAFT A G 9 March 1970 [18 March 1969] 11230/70 Heading C7B [Also in Division C1] Alumina for use in the melt electrolytic production of aluminium consists of calcined alumina which contains 0À01 to 0À5 wt % of Li 2 O, calculated as metal, and is produced by adding lithuim ions to an aqueous alkali metal aluminate solution and caleining the resulting precipitate.
Patent GB-431425-A (GB)
Title: Improvements in or relating to speed changing mechanism
IPC: B23Q5/00
Filed: 1934-04-13
Abstract: 431,425. Controlling change speed belt gearing. WICKMAN, A. C., Queen Victoria Road, Coventry. April 13, 1934, No. 11255. [Class 80 (ii)] Change-speed gearing comprises belts E, Fig. 1, tightened alternatively so as to be operative by jockey pulleys F advanced by a rotary eccentric or like shaft K operated by power and controlled by a timing drum Y. Four pulleys B fast on a driving-shaft A are arranged below pulleys D on a parallel driven shaft C, which may be the work spindle of an automatic lathe. The four belts E are long enough to hang loosely below each pulley B, and each pulley D is connected to the work shaft C through a one-way clutch. The jockeys F are supported on levers G depending from a pivot shaft H, and each lever G is connected by a link G<1> to an eccentric, crank, or cam J, Fig. 2, fast on the shaft K which is turned through a right angle to effect a speed change each time a disc R makes one revolution. The disc R is loose on a shaft T which is driven constantly through a belt T<1> from the shaft A. The shaft T carries a fixed positive clutch member M adapted to be engaged by a spring-pressed one-revolution clutch member U splined on a sleeve N rigid with the disc R. The disc R carries a bowl S which coacts in a well-known manner with a Geneva wheel Q fast on the shaft K which is thus driven intermittently. The timing drum Y is driven constantly through worm gearing y<2> and skew gearing t<2> from the shaft T. A bowl V on a lever W normally rides in a cam slot U<1> in the clutch member U and acts as an abut. ment. When the disc R has completed a revolution after turning the shaft K to effect a speed change, the cam slot U<1> turning over the abutment bowl V withdraws the clutch member U from engagement so that the disc R and eccentric shaft K stop in gear position. The drum Y goes on turning until one of a set of tappets X tilts the lever W, lifting the bowl V out of the slot Ul, so that the clutch member U snaps again into engagement and starts another speed change, the bowl V afterwards falling back into the cam slot in readiness to terminate the speed change. The eccentrics &c. J are separately adjustable around the shaft K so that the sequence of speeds may be altered at will. An arrangement of changeable dog teeth for adjustably mounting each eccentric &c. is described with reference to Fig. 4, not shown.
Patent GB-992236-A (GB)
Title: Process and installation for extracting by condensation condensable vapours
IPC: B01D5/00
Filed: 1962-03-26
Abstract: 992,236. Condensation of vapours ; gas filters. AMERICAN STERILIZER CO. March 26, 1962 [June 12, 1961], No. 11368/62. Headings BIB and BIT. Vapours, e.g. steam withdrawn from a sterilizing autoclave 1, are condensed in a condenser 7 maintained under reduced pressure by a vacuum pump 6, operated by a fluid medium (e.g. oil) having a lower vapour pressure than the condensate, the required vacuum being set at the pump by means of valve 8, and being maintained substantially constant in the condenser by regulating the pressure of the vapour supplied to the condenser through valve 34. A carbon filter 24 is mounted in the condenserhousing between the cooling-coil 10 and the vacuum pump. The filter is preferably impregnated with a water-repelling substance, such as a silicone. The filter is surrounded by a cylindrical baffle 28, the base of which has openings 30. Valve 34 has a pneumatic drive which is connected to the condenser-housing via pipe 35. Valve 34 opens at a predetermined subatmospheric pressure in the condenser, and closes at a higher pressure. Temperaturesensitive device 36 in line 5 also controls valve 34 and ensures that all the vapour is condensed, and that only permanent gases pass through the filter to the pump. In an example, steam is condensed at a pressure of more than 450 Torr, an adjustment to 60 Torr having been made at the pump.