baber/WOPTO huggingface dataset:
Patent GB-714732-A (GB)
Title: Improvements in sound film kinematograph apparatus
IPC: G03B31/00
Filed: 1952-04-03
Abstract: 714,732. Kinematograph apparatus. MICROCINE SOC. R.L. April 3, 1952 [April 5, 1951], No. 8561/52. Class 97(1) [Also in Group XXXVIII] A longitudinal wall divides the casing of sound film apparatus into two compartments, comprising a smaller one containing film feeding means, sound head, viewfinder and a reflector behind the gate opposite a closable aperture in the side wall and a larger one containing a flywheel for the sound head, an amplifier and a motor which drives a longitudinal shaft which in turn drives the film feed mechanism and the shutter. As shown, the casing 1 is divided by a wall 2 behind which the film path is situated. In front is a motor 10 which drives a shaft 7 through a belt 9. The shaft drives, through worm gearing 13. 14 a shaft 15 on which is mounted, behind the wall 2, a sprocket which feeds the film to and from the gate. The other end of the shaft carries shutters 125, 126. one carried directly on the shaft, which is hollow, and the other by another shaft within. A collar 19 carrying a pin projecting into oppositely inclined helical slots in the two shafts is axially adjustable by an arm 23 actuated by an external knob to produce relative rotation of the shutters and vary their opening. This end of the shaft 7 also drives the claw feed comprising a claw frame 25 reciprocated in pins 27; in the feed direction, by an eccentric on the shaft and rotated about the pins by a face cam 28. A lens turret 41 carries objectives and lenses for the viewfinder, the sight tube of which passes through the upper part of the film compartment. The latter compartment also contains a sound head the drum of which is carried on the shaft 44 which extends through the partition wall to the front of the compartment shown where the flywheel 43 is carried. The compartment shown also contains the amplifier 12. The apparatus may be used for recording sound or silent films, for printing sound tracks, in which case two films are fed in register round the sound head, or for projecting or printing picture films. In the latter purposes a lamp housing is added. For printing light is directed through the objective. for projection it is directed through the side wall aperture on to the reflector behind the gate.
Patent GB-940514-A (GB)
Title: Improvements in or relating to serial digital electronic computers
IPC: G06F7/504
Filed: 1961-03-09
Abstract: 940, 514. Digital electric calculating- apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 9, 1961 [March 12, 1960], No. 8664/61. Heading G4A. A serial electrical digital computing circuit adapted for addition comprises a main memory Gh, a circuit GK for selecting words to be read from the memory and a circuit CK for selecting digits read from the memory. In operation, each successive pair of corresponding digits of two numbers to be added is transferred to temporary stores SG 1 , SG 2  whence the two digits are applied to an adder Opt in synchronism with the carry digit (if any) resulting from the addition of the previous two corresponding digits. The resulting sum digit is transferred to an output circuit GI and is also entered into the memory Gh. The digit selector CK then steps on one place and the addition operation is repeated for the next pair of corresponding digits of the numbers to be added. In a modification (Fig. 3, not shown), the second temporary store SG 2  is fed via the first store SG 1 . A decimal adder for the excess-3 code is described (Fig. 7, not shown). The word selector GK (Fig. 8, not shown) comprises transistor switches under the control of a flip-flop counter.
Patent GB-476094-A (GB)
Title: Apparatus for obtaining the appearance of handwriting or the like by means of electrical discharge luminous tubes and like devices
IPC: G09G3/00
Filed: 1937-03-30
Abstract: 476,094. Supply systems for discharge lamps. SOC. COOPERATIVE NEOLUMEN. March 30, 1937, No. 9043. Convention date, March 31, 1936. [Class 38 (iv)] [Also in Group XVIII] Switching control.-In apparatus for illu.. minating progressively an electric discharge tube sign in which the tube is divided by intermediate electrodes into a plurality of sections illuminated successively by switches to give the appearance of luminous writing or drawing, the voltage on the low and on the high tension sides of a single transformer are regulated simultaneously by means of a variable resistance on the low tension winding in such a, manner that an increasing number of sections of a tube are connected one by one in series with a single circuit including the high tension winding, the whole current passing through each section of the tube, so that the correct striking voltage is applied successively to each portion of the tube. The Figure shows a tube H<1> .... L having intermediate electrodes 1-16 which are connected each respectively to contact studs 1-16 on the high voltage side of a rotary switch. The rotary arm Sch carries a contact C connecting a conducting rim in the secondary circuit of the transformer with, in succession, an insulating segment A, the studs 1-16 and a conducting segment D. The arm Sch also carries a contact K connecting a conducting ring in the primary circuit of the transformer with, in succession, an insulating segment B, conducting segments a joined together by resistances R1, R2, R3 and a conducting segment G. It is stated that one transformer will function for a length of tube up to 12 metres. For greater lengths additional transformers are provided, a single rotary switch being adapted for working them in parallel.
Patent GB-472651-A (GB)
Title: Improvements in or relating to radio direction finding installations
IPC: G01S3/08
Filed: 1936-03-26
Abstract: 472,651. Directive wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., SMITH, S. B., and GREEN, E. March 26, 1936, No. 9069. [Class 40 (v)] Two different wavelength Adcock systems are positioned one inside the other without material interference, by so arranging or constructing the longer wave aerials that they cannot set up standing waves at the shorter wavelength and thus receive and reradiate energy to the detriment of the short wave system. The long-wave aerials may be loaded with oppositely wound coils or earthed through an impedance network matching the surge impedance of the aerial. Each long-wave aerial may consist of a plurality of ordinary aerial lengths a, Fig. 5, joined in series by loading coils L, alternate coils being wound in opposite sense, or of a series of oppositely wound inductances, Fig. 6 (not shown). The loading, which may consist of coils wound on insulators of small diameter, causes standing waves of the shorter wavelength to be of small magnitude and to prevent the reception of horizontally polarized downcoming rays. Each long-wave aerial A1, Fig. 8, may be constituted by a cage consisting of a plurality of solenoid members a1-a4; members forming opposite sides such as a1, a2 are wound in opposite directions and connected at the bottom through condensers K to the feeder cable, and at the top through a masthead light EL which is supplied with direct or alternating current through the chokes RFC. The helical conductor a1, Fig. 9, may be wound on a doped hemp core HC and then covered with a serving S. The long-wave aerial A1, Fig. 7, is earthed through a network comprising resistance R and condenser C, which equals the surge impedance of the aerial considered as a line at the short wavelength ; thus short-wave energy is earthed and reradiation prevented.
Patent GB-635815-A (GB)
Title: Improvements in or relating to propeller pencils
IPC: B43K21/08
Filed: 1948-03-31
Abstract: 635,815. Propelling-pencils. ESCOMBE, G. G. March 31, 1948, No. 9093. [Class 146 (iii)] In a propelling pencil of the kind in which the projection and retraction of the lead is effected by the relative rotation of two parts, one of said parts is adapted to be maintained against rotation by gravity. A lead holder 1 is carried by a threaded feed rod 2 which engages an internally threaded bush 3 carried at one end of a bearing unit 4. The unit 4 is supported concentrically within the barrel at its rear end by a spike 11 formed on the end of a screw 14 which engages a bore 10 in a bush 7 fixed to the unit 4. The unit 4 carries a heavy mass 13 of material such as lead on its underside. The feed rod 2 is prevented from rotating relatively to the barrel by a pin 16 which engages a longitudinal groove 15 in the feed rod and the unit 4 is maintained against axial movement by a bush 8 at one end and the spike 11 at the rear end. Rotation of the barrel when in the horizontal position causes projection or retraction of the lead holder since the unit 4 remains with the mass 13 downwards. A compartment 18 is formed at the rear end of the pencil, pads of rubber being placed at either end to protect leads stored therein.
Patent GB-493064-A (GB)
Title: A process for the electrothermic production of compact metallic magnesium by reduction of oxidic magnesium compounds
IPC: C22B26/22
Filed: 1937-03-30
Abstract: In the production of magnesium by a two-stage process wherein the magnesium is first condensed to a powder and the metal is thereafter distilled out of the powder, the powder obtained in the first stage is heated with a reducing agent such as aluminium, silicon, ferrosilicon, or calcium carbide whereupon the magnesium is liberated as vapour and thereafter condensed.  Such reducing agents may be obtained in the first stage by the presence in or addition to the charge of materials which react with carbon so that the reducing agents are volatilized and condensed along with the magnesium dust; or a metallic reducing-agent such as aluminium may be used along with the carbon in the first stage.  For example, if the initial material is dolomite, calcium carbide is formed by the reaction with carbon; or lime, alumina, or silica may be added to the charge.  If an excess of reducing agent is present at the beginning of the second stage some magnesium oxide may be added.  Specification 448,186 is referred to.
Patent GB-734051-A (GB)
Title: Variable speed friction drive
IPC: F16H15/50
Filed: 1953-04-01
Abstract: 734,051. Continuously-variable friction gearing. WASSILIEFF, V. April 1, 1953 [April 1, 1952], No. 9102/53. Class 80 (2). [Also in Group XXXI] In variable-speed friction gearing rollers 4 pivoted at one end to a carrier 28 engage discs 11, 12, under the action of springs 24. The members 11, 12, 28 are coaxial, one of them being axially stationary. Any of the three members may form the driving or driven members of the gearing. The rollers 4 may be cylindrical or curved convexly or concavely. The discs 11, 12 may be flat or curved. The. gearing may act on the epicyclic or non-epicyclic principle. As shown, the disc 11, Fig. 4, is axially stationary and the discs 11, 12 are driven in opposite directions from a driving shaft 18 through bevel gearing 19, 21. A shaft 29 fixed to the carrier 28 forms the driven member. Manual adjustment of the axial position of the shaft 29 varies the tilt of the rollers 4 to change the gear ratio. The rollers may be pivoted at their radially outer ends instead of at their inner ends. Some modifications embody two sets of rollers 4 and discs 11, 12. Hydraulic or pneumatic power means may be used to vary the tilt of the rollers. In a construction for driving the rear wheels of a motor-car and for steering the roller carrier 7, Fig. 5, is driven from the engine shaft 36 and the wheel axles 32, 33, are connected to the discs 11, 12. In the position shown the axles 32, 33 have equal speeds for straight driving. To move the car in a curve the rollers 4 are tilted to give differing speeds to the axles 32, 33.
Patent GB-1492727-A (GB)
Title: Vehicles having outrigger beams
IPC: B60S9/12
Filed: 1976-03-08
Abstract: 1492727 Vehicle outrigger beams HARNISCHFEGER CORP 8 March 1976 [17 March 1975] 09137/76 Heading B7J The subject matter of this Specification is substantially the same as that described in Specification 1,492,726, but the claims are concerned with ratchet and pawl locking arrangements between a vehicle frame and outrigger beams for locking each beam in its operative position.
Patent GB-537943-A (GB)
Title: Improvements in or relating to delivery apparatus, e.g., for use with automatic weighing mechanism
IPC: G01G13/00
Filed: 1940-05-24
Abstract: 537,943. Delivering articles from weighing and other apparatus. LANGRISH, H. W., and MOLINS MACHINE CO., Ltd. May 24, 1940, No. 9164. [Class 143] In an apparatus wherein a succession of articles are fed to a support (e.g. a scale pan 1) and are successively lifted therefrom and carried away, the lifting means comprises a rotating conveyer 7, a control lever 17 pivoted at 20 on the conveyer, a stationary cam 23, a carrier 12 loosely pivoted on a pin 13 on the control lever and terminating at opposite ends in an article-engaging groove 15 and in a tail 22 respectively, and a transverse pin 21 secured to the conveyer so as to be engaged by the tail. In operation, the articles 3 from a shoot 4 are carried successively by a transfer device 6 to flutes 11 in the conveyer and are successively deposited thereby on the scale pan 1. Immediately after a weighing operation the pin 13 is caused by the stationary cam 23 to rock the control lever 17, the control lever carrying with it the carrier 12. The tail of the carrier abuts against the transverse pin 21 and the carrier is given a rapid angular movement to lift the article off and beyond the scale pan. Continued rotation of the conveyer carries the article downward until the article falls off the carrier to a box or shoot. Specifications 527,983 and 528,388 are referred to.
Patent GB-627773-A (GB)
Title: Improvements in or relating to the production of organic fluorine compounds
IPC: C07C17/087
Filed: 1947-04-08
Abstract: Monofluorine derivatives of saturated aliphatic chlorohydrocarbons are obtained by reacting an unsaturated aliphatic hydrocarbon with hydrogen fluoride at 10-80 DEG  C. in the presence of a stannic halide catalyst.  The unsaturated aliphatic chlorohydrocarbon is represented by the formula H2C=CX1X2 where X1 is hydrogen or chlorine and X2 is chlorine or an alkyl radical containing up to three carbon atoms, which contains at least one chlorine substituent when X1 is hydrogen.  A pressure at least equivalent to the vapour pressure of the reaction mixture and stannic chloride in an amount 2.5-22.5 per cent by weight of the starting material are used.  Examples describe the preparation of 1-fluoro-1-chloroethane from vinyl chloride, 1-fluoro-1 : 1-dichloroethane from asym. - dichlorethylene, 2 - fluoro - 2 - chloro - propane from 2-chloropropylene, and 2-fluoro-2 : 3 - dichloropropane from 2 : 3 - dichloropropylene, using stannic chloride or fluoride as catalyst in a stainless or mild steel autocalve.  Specifications 391,168 and 608,111 are referred to.
Patent GB-125963-A (GB)
Title: Improvements in and relating to Carburettors.
IPC: F02M7/10
Filed: 1919-04-12
Abstract: 125,963. Soc. Anon. du Carburateur Fill. Oct. 15,1917, [Convention date]. Vnid [Published under Sect. 91 of the Act]. Addition to 125,962. Spray carburettors.-The parent Specification describes a carburettor in which a single nozzle, which discharges into a horizontal choke tube, is provided with an additional radial fuel duct which discharges into a chamber which communicates with the carburettor passage on the engine side of the throttle valve. According to the present invention, the carburettor comprises a horizontal casing 1 with choke tube 6, and a depending casing 3 into which is fitted a support 4 for the nozzle 9. A plug 10 forms chambers 11, 12 between the nozzle and casing 3 respectively, and has a radial duct 17 leading to a by-passage 8 controlled by a screw 18, and communicating with the carburettor passage on the engine side of the throttle valve. Air may be admitted to the passage 8 through a perforated plug in the end thereof, and to the chamber 12 through hole 16. The chamber 11 communicates with the choke tube and with the fuel discharge passage 13 through ducts 15, 14 respectively.
Patent GB-198505-A (GB)
Title: Improvements in stereotype plate casting apparatus
IPC: B41D3/00
Filed: 1922-03-31
Abstract: 198,505. Linotype & Machinery, Ltd., (Mergenthaler Setzmaschinen Fabrik Ges.). March 31, 1922. Stereotype, casting. In a stereotype castdngapparatus of the kind in which the core and drag are horizontal, one or more blowers, controlled by the operator, are provided for directing air blasts along the space between the matrix and the drag to remove particles of dirt or metal which may accumulate therein. A cylinder 3, secured to the bottom of the drag 2, contair.s a hollow piston 4 normally pressed downwards by a spring 8 on the piston rod 5 which is connected by a bell-crank lever 18 and lever 16 to a push-rod or plate 15. When the piston is raised, compressed air passes from a supply passage 11 through one or more ports 9 in the piston and out through a port 12 along the bottom of the drag and removes any particles such as 13 from between the drag and matrix 14. When the piston is lowered, its upper end is flush with the surface of the drag and the ports 9, 12 are closed.
Patent GB-565689-A (GB)
Title: Improvements relating to electrodes for electric discharge devices
IPC: H01J61/073
Filed: 1943-06-11
Abstract: 565,689. Metal vapour lamps. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd., and ALDINGTON, J. N. June 11, 1943, No. 9467. [Class 39 (i)] An electrode for an electric discharge device comprises a closely wound helix 1 of refractory metal surrounding a mass 4 of thermionic material and having inserts 2 and 3 in each end. The inserts comprise open helices of wire having an external diameter and a pitch distance such that they can be screwed into the main helix, but are sufficiently sprung in the process to be locked in position. The leadin wire 5 is inserted within the helix 3 which is then compressed by pliers to grip the wire firmly. The thermionic material may comprise a mixture of barium silicate, strontium silicate and thorium oxide. In an example, the main helix is wound from tungsten wire 4 mm. in diameter and is of .5 mm. internal diameter. The inserts are wound from tungsten wire .2 mm. in diameter and have an internal diameter of .2 mm.
Patent GB-327280-A (GB)
Title: Improvements in non-skid devices for the wheels of road vehicles
IPC: B60C27/08
Filed: 1929-03-25
Abstract: 327,280. Bull, F., and White, F. March 25, 1929. Tread bands.-In a detachable tread band comprising transverse chains 3 connected to side retaining chains 2, each of the transverse members includes a plate 6 fitted with a spindle 10 carrying rollers 11 arranged to bear on the ground but clear of the actual tread surface of the tyre.
Patent GB-1182602-A (GB)
Title: Liquid Pumps
Inventor: BOTTOMS HARRY SIMISTER
IPC: F02M37/04
Filed: 1966-03-04
Abstract: 1,182,602. Centrifugal pumps. JOSEPH LUCAS (INDUSTRIES) Ltd. Feb.23, 1967 [March 4, 1966], No.9514/66. Heading F1C. In a pump of the kind in which the pressure rise created thereby is directly dependent on the rotational speed, e.g. for delivering fuel to a gas turbine engine driving the pump, the quantity of liquid discharged by the pump through a valve 19, 20 to an outlet 17 is controlled by a pair of inter-connected bellows 22, 23 in accordance with the difference between an intermediate pump pressure communicated to the bellows 22 through a passage 25, and the pump inlet pressure communicated to the bellows 23 through a passage 33. The effective length of a biasing spring 32 can be adjusted by a device 31. The valve member 20 is slidable in a U-shaped member 21 so as to be -movable by an electrical solenoid 28 to close the valve 19, 20 independently of the bellows.
Patent GB-262711-A (GB)
Title: Improvements in hermetic joints for vacuum tubes and the like
IPC: H01J5/30
Filed: 1926-04-12
Abstract: 262,711. BarrÞre, R. A. Dec. 9, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Joint-making packing.- A rod k operating a cap m<1> for regulating the pressure of gas in a vacuum tube, is mounted in a chamber b of small capacity, the joint between the chamber and the envelope a being sealed with mercury. A rubber cushior. q is clamped about the rod k by a sleeve r and screwed cap j. Packing rings e<2> are mounted in a washer e integral with the chamber, and in a washer d screwed on to a threaded part of the chamber. Mercury is introduced through holes closed by plugs p.
Patent GB-702160-A (GB)
Title: Improvements in or relating to wrapping machines
IPC: B65B11/54
Filed: 1951-04-25
Abstract: 702,160. Wrapping machines. FORGROVE MACHINERY CO., Ltd., and BROOK, L. April 16, 1952 [April 25, 1951], No. 9636/51. Class 94 (1) A bunch-wrapping machine comprises a carrier head arranged to rotate intermittently on a vertical axis and provided with a plurality of grippers for carrying the wrapped articles in succession to a heating station, then to a cooling station and finally to a discharge station, a heater at the heating station, a cooling pad at the cooling station, and mechanism, operated by a single cam in timed relation with the movement of the carrier head, for simultaneously raising the heater and cooling pad into contact with the bases of the articles dwelling at their respective stations and thereafter lowering the heater and cooling pad to inoperative positions. The machine shown is similar to that described in Specifications 702,154 and 702,156 and comprises a carrier head 10, Fig. 1, with six pairs of grippers 11, which is rotated intermittently to carry wrapped tablets 16 in succession to a station C where a heater 22 is lifted against the base of a tablet to seal the pleats of the wrapper and a top presser 23 is lowered into engagement with the top of the tablet, a station D where a cooling pad 24 is lifted against the base of the tablet and a top presser 25 lowered into contact with its upper surface, a station E where a further cooling pad 26 is raised against the base of the tablet, and a discharge station F. A cam 28; Fig 3, actuates a lever 30 formed at its upper end with gear teeth 32 meshing with a quadrant gear 33 on a spindle 34 to which is fixed an arm 35. A second arm 36 is loosely mounted on the spindle, and a spring 39 in a curved pocket between the arms serves to drive the arm 36 in an anti-clockwise direction, the return clockwise movement being imparted by a lug 40 on the arm 35 which coacts with a screw 41 on the arm 36. The latter is coupled by a link 38 to an arm 42 on a shaft 44 to which is fixed an arm 46 carrying the top presser 25. The top presser 23 is carried by an arm 48 fixed to a spindle 49 carrying an arm 50 connected by a link 51 to an arm 52 fixed to the shaft 44. A third arm 53 on the shaft is coupled by linkage to an arm 60 on a shaft 61 to which is fixed an arm 62 carrying the cooler pad 26. The cooler pad 24, Fig 1, is carried by a pivoted arm 63 coupled by linkage to an arm 160 on the shaft 61. The heater 22, Fig. 5, is supported by a bracket 68 pivoted at 69 which contains electrically-heated cartridges 45 an is acted on by a spring 71 which tends to raise it to the operative position. The bracket carries a screw 72 coacting with a tappet 73, on an arm 74 fixed to the end of the shaft 61, whereby as the shaft is rocked clockwise to raise the cooler pads 24, 26, the tappet is lifted to allow the spring to raise the heater. The machine includes an electrically-controlled trip mechanism as described in Specification 702,159.