baber/WOPTO huggingface dataset:
Patent GB-701850-A (GB)
Title: Improvements in or relating to photographic film feeding apparatus
IPC: G03B1/36
Filed: 1951-09-19
Abstract: 701,850. Kinematograph apparatus. KODAK, Ltd. Sept. 19, 1951 [Nov. 17, 1950], No. 21950/51. Class 97(1) [Also in Group XL(b)] Advancing means engage spaced portions of a film and feed it into an upper loop and from a lower loop, a film positioning pin fixed relatively to a gate aperture having a surface substantially perpendicular to the direction of film movement for intermittently engaging a film perforation to locate the film at the gate, air under pressure applied to one of said film loops tending to expand it to maintain one edge of said perforation in engagement with said surface of the positioning pin. In the form shown in Fig. 7, the film F is fed continuously by sprockets 27, 29 inter-connected by gearing and motor driven. Loops L, L1 are formed between the sprockets and a gate member 19 round which the film is guided by rollers 66. The film loops pass 'between a wall, not shown, forming part of the apparatus casing, and plates 72, 73 parallel to the wall and connected to it by perpendicular walls 70. The parallel walls have small clearances from the film edges. Air from a blower is admitted to the spaces enclosed by two film loops through ports 82, 83 in the casing wall, by rotary valves 87, 88. The film loop L is acted on continuously by the air except when the sector 87 covers the port 82. The film is thus tensioned upwardly to register the lower eges of film perforations against the edges 63, Fig. 4, of the chamfered ends 65 of pins 60 secured by screws 62 in grooves 61 in the member 19. When the port 82 is covered the port 83 is uncovered by the port 89 in the valve 88. The loop L1 is then tensioned until the loop L is shortened against a shoe 75 and a fresh frame is registered at the gate. An adjustable epicycle drive is provided to control the instantaneous position of the sprocket 27, and the size of the loop L, when the film is fed. In a modification, air pressure is applied continuously to the loop L1 which is thereby tensioned downwards to register the perforations on the upper surface of a pin chamfered oppositely to that shown in Fig. 4. The film is allowed to feed by reciprocating the register pin. There is no air supply to the loop L but a hole is provided in the wall 70 to allow escape of air at a speed to damp movement of the film on to the shoe 75. In a further modification only one air chamber is provided, round the loop L and air is supplied continuously to register the film on pins as illustrated. The film is fed below the gate by claw or Maltese cross mechanism which is normal apart from some lost motion, for example by pin and slot connecting the Maltese cross with its sprocket. This, results in some over-travel of the film to ensure engagement with the register pins. The air pressure then retracts the film slightly to register it exactly.
Patent GB-534216-A (GB)
Title: Electrical condensers and methods of preparing them
IPC: H01B3/18
Filed: 1939-07-28
Abstract: 534,216. Condensers. STANDARD TELEPHONES & CABLES, Ltd. July 28, 1939, No. 21995. Convention date, Aug. 31, 1938. Drawings to Specifications. [Class 37] A di-electric impregnant comprising a halogenated compound such as a chlorinated hydrocarbon, chlorinated naphthalene or chlorinated diphenyl, is prevented from breakdown by mixing therewith substances capable of rendering harmless any free acid that may be formed. Suitable substances are :-1. Salts of a weak acid such as alkali or alkaline earth metal salts, of a weak organic or inorganic acid, or of the acid in such gums as pectin, gum arabic &c. or of acid derivatives of carbohydrates, e.g. gluconic or uronic acid or of carbohydrates themselves that have free hydrogen atoms. 2. Adsorbing or base exchange substances, such as silica gel, adsorbent carbon, bentonite or fullers earth. 3. Substances of a quinoid structure such as anthraquinone. The substances may be incorporated in the usual paper spacers before impregnation with the halogenated compound. Specification 531,663 is referred to.
Patent GB-727270-A (GB)
Title: An improved means of retaining bedding in position on an overlay mattress
IPC: A47C21/02
Filed: 1952-09-02
Abstract: 727,270. Securing bedclothes. KENWORTHY, T. Nov. 30, 1953 [Sept. 2, 1952], No. 22016/52. Class 52 (2). Straps b secured to the boxing a of an overlay mattress are arranged across the corners on the underside to form loops into which the bedclothes can be tucked. The straps may be detachable and can be removed and reconnected on inversion of the overlay or they may pass over the top surface in a continuous length and be secured by loops c or by stitching.
Patent GB-345910-A (GB)
Title: Improvements in or relating to aeroplanes
IPC: B64C29/00
Filed: 1930-07-22
Abstract: 345,910. Supporting, propelling, and controlling aircraft. ZUROVEC, W., Volkersdorf, Isergebirge, Germany. July 22, 1930, No. 22115. Convention date, June 23, 1929. [Class 4.] Aeroplanes and machines supported by direct fluid pressure apparatus; propel - ling ; controlling.- An aeroplane has tractor propellers e, f arranged along the whole length of the leading edge of its main plane or planes, rear flaps b for varying the camber being provided to enable the slip stream from the propellers to be utilized for lifting the machine vertically or for causing it to hover. The slip stream from the centrally arranged propellers e is left unimpeded by wing flaps in order not to impair the efficiency of the elevator. The chord of the plane normally makes a slight angle with the propeller shafts except at the centre where it is practically parallel thereto. The centrally arranged propellers e are direct-coupled to engines g which drive through bevel gear h a counter-shaft i from which the outer propellers are driven. The propellers diminish in diameter towards the wing tips. The flaps b may be used also as ailerons.
Patent GB-762908-A (GB)
Title: Vehicle number plate illuminating lamp
Inventor: STEPHENSON HERBERT FITZGERALD
IPC: B60Q1/56
Filed: 1954-07-29
Abstract: 762,908. Vehicle lamps. BUTLERS, Ltd. June 16, 1955 [July 29, 1954], No. 22147/54. Classes 75(2) and 75(4) A vehicle number plate lamp comprises a lamp-bulb socket b attached to a base plate a, a cup-like transparent or translucent bulb enclosure i having its open end in contact with an annular rubber-like seal h surrounding the bulb socket and a detachable opaque cover g having a light emitting aperture (not shown). The cover g is attached by screws j to the inwardly turned ends of a metal strip f secured to the base plate and presses the translucent bulb enclosure i against the rubber-like seal h. The electric conductor e is protected by a flexible envelope m.
Patent GB-967565-A (GB)
Title: Alloys containing pyrolytic graphite
IPC: C23C16/32
Filed: 1962-06-07
Abstract: A mixture of pyrolytic graphite and a meta1 (e.g. B, W, Ta, Nb, Mo, Si, Ti, Hf, or Zb) is prepared by contacting a volatile metallic compound with a gaseous hydrocarbon (e.g. CH4, C2H6, C3H8 or C6H6) at a temperature of 1700-2300 DEG  C. at a pressure of less than 20 mm. of mercury.  The gas mixture preferably contains 100-300 mols. of the hydrocarbon per mol. of the metallic compound (e.g. BCl3) and the boron concentration in the examples is preferably between 0.32 and 1.74%.ALSO:A process for coating a substrate with a mixture of graphite and one of B, W, Ta, Nb, Mo, Si, Ti, Hf or Zr comprises supplying a volatile metallic compound, e.g. BCl3, with a gaseous hydrocarbon, e.g. CH4, C2H6, C3H8 or C6H6, at a temperature of 1750-2300  DEG C. at a pressure of less than 20 mm. of mercury. The gas mixture preferably contains 100-300 moles of the hydrocarbon per mole of metallic compound and the boron concentration in the examples is preferably between 0.32% and 1.74%.
Patent GB-973788-A (GB)
Title: Fuel compositions
IPC: C10L1/30
Filed: 1963-06-04
Abstract: A fuel composition based on a hydrocarbon liquid boiling in the gasoline range contains (A) an organo-lead anti-knock compound, (B) a substituted tertiary ester of formula <FORM:0973788/C4-C5/1> where A represents <FORM:0973788/C4-C5/2> R1, R2 and R3 each being hydrogen or C1-4 alkyl and R4 being C1-4 alkyl, and (c) a phosphorus compound of formula <FORM:0973788/C4-C5/3> where R5, R6 and R7 are the same or different C1-15 hydrocarbyl groups, n is 0 or 1, and X is oxygen or sulphur, additives (B) and (C) being present in such amounts as to satisfy certain defined conditions.  Additives (A), (B) and (C) are extensively exemplified, and a halohydrocarbon scavenger may additionally be present, e.g. ethylene dibromide or a mixture thereof with ethylene dichloride.
Patent GB-1269797-A (GB)
Title: Time-delay switching circuits
Inventor: GROOM LEMVEL DOWNING III
IPC: H03K17/72
Filed: 1969-05-01
Abstract: 1,269,797. Time delay switching circuits. TEXAS INSTRUMENTS Inc. 1 May, 1969 [22 May, 1968], No. 22237/69. Heading H3T. [Also in Division H2]  A timing device comprises a three terminal threshold switch e.g. thyristor 12 connected by two terminals to a load and a battery and having its control terminal connected to two further batteries in opposition, one or both batteries decaying in time such that after a predetermined delay the combined voltage passes the threshold and switches the device. As shown, the batteries are of nickel-cadmium or mercury type and the decay is controlled by a variable resistor 42. Switch 34 may be omitted and one or both batteries may be connected in series with the supply battery E 1 . The thyristor may be replaced by a complementary transistor pair and the resistor 42 may be omitted, the decay being the "shelf-life". One of the batteries may be predischarged to vary the time period. The load may be an incandescent lamp.
Patent GB-750434-A (GB)
Title: Improvements in or relating to machines for attaching box corner stays
Inventor: NASMITH JOHN IRVING
IPC: B31B3/72
Filed: 1953-08-12
Abstract: 750,434. Feeding webs. VICKERS -ARMSTRONGS (ENGINEERS), Ltd. Aug. 6, 1954 (Aug. 12, 1953], No. 22247/53. Class 100 (1). A machine for attaching box corner stays incorporates folding means to fold a paper strip longitudinally, a feed device which contacts only the outer ungummed surface of the folded strip, the feed device being interposed between the folding means, and a non-mechanical damping device, such that on operation the feed device feeds a predetermined length of the folded strip past the moistening device. A strip 5 (Fig. 1, not shown) is drawn through a folding means 10 by a feed device comprising a driven disc 11 and a disc 12, Fig. 3, and then passes over a damping device 30 (Fig. 1, not shown). A shaft 14, Fig. 2, carrying the disc 11 (Fig. 1, not shown) is oscillated by a gear 13 meshing with a sector 15 oscillated on a shaft 15a by links 25 and 55a. The link 25 engages a curved slot in a member 24 rocked about a pin 24b by a cam roller 24a, Figs. 2 and 3, engaging a box cam 20 driven through a shaft 21, Fig. 3, and sprocket 22 by the machine. The link 25 also engages a guideway, not shown, in a lever 16 pivoted on a pin 16a. The position of the lever 16 is adjustable, to vary the angular motion imparted to the sector 15, by a hand wheel 18 on a shaft 18a carrying a worm 18b, Fig. 2, engaging a wormwheel 18c on a shaft 17 having a gear 18d cooperating with teeth 16b on the lever. An indicator 19 co-operates with a fixed mark to indicate the setting of the lever 16. The disc 12, Fig. 3, urged towards the oscillating disc 11 (Fig. 1, not shown) by a spring-pressed plunger 28, is moved apart therefrom by a frame 26 rocked about a pivot 27 by a cam roller 26a, engaging an edge 20a of the cam 20. Specification 480,268 is referred to.
Patent GB-1250059-A (GB)
Title: An educational aid
Inventor: KNACK JOHN WILLIAM
IPC: G09B23/30
Filed: 1969-05-01
Abstract: 1,250,059. Educational appliances. ACADEMIC DIMENSION SYSTEMS Inc. 1 May, 1969 [1 May, 1968], No. 22281/69. Heading G5G. [Also in Division B6] An educational aid comprises a plurality of embossed leaves 14, 16, 18 with substantially identical contours 24 so that the leaves can be nested in a stack for storage or formed into a book. As shown, the leaves show the human body 42, 44, each leaf representing a different section to show the physical relationship among the organs or among the components of a given organ such as the heart. One or more of the leaves can be made of transparent material. Alternatively all the leaves may be transparent so that they may be stained or coloured to illustrate differing contours.
Patent GB-295513-A (GB)
Title: Improvements in and relating to gas heated radiators and cooking devices
IPC: F24C3/00
Filed: 1927-08-24
Abstract: 295,513. Robinson, H. Aug. 24, 1927. Gas cooking-stoves; gas fires. -A g a s cooking-stove, of the type comprising radiants c arranged heneath an opening in a hot-plate a and having a grill-pan q below, is adapted for room heating by the provision of means, such as the pivoted U-form support n, for maintaining the radiants in an inclined position, and for supporting the grill-pan at an angle to them so as to diffuse the heat in an approximately horizontal direction into the room. In the construction shown, the grill-pan is supported, when in the inclined position, by the engagement of one of its edges with a roll o on the side wall i.
Patent GB-276985-A (GB)
Title: Improvements in or relating to processes for impregnating insulating materials
IPC: H01B3/48
Filed: 1927-08-25
Abstract: 276,985. Soc. Italiana Pirelli. Aug. 31, 1926, [Convention date]. Cables, processes for making.-A process for impregnating insulating materials intended for electrical purposes, particularly the insulating material of electric cables, with insulating impregnating compounds such as oils consists in first replacing the air in the insulating material by a gas which is soluble in the impregnating compound, expelling the gas from the material and then introducing the impregnating material. The gas used may be carbon dioxide, propane, or acetylene. The material to be, impregnated is first dried, and the air exhausted therefrom as completely as possible by treatment in vacuum apparatus. The dry gas is then introduced, and the vacuum treatment repeated. Treatment with gas and exhaustion of the same may be repeated if desired, and the impregnating material, for instance oil, is then introduced at a suitable temperature, after having been previously freed from gas or gases by heating in a vacuum. The residual gas in the material is dissolved by the oil, and complete impregnation is effected.
Patent GB-894724-A (GB)
Title: Improvements in and relating to the mounting of switch boxes on electrical switch-boards
Inventor: MINOPRIO WILLIAM EDWARD
IPC: H02B1/46
Filed: 1959-06-30
Abstract: 894,724. Switchboards; switch cases. DORMAN & SMITH Ltd. June 9, 1960 [June 30, 19591. No.22345/59. Class 38 (5). A box 10 housing switches and fuses has a detachable lid 11 which pivots about a pair of lugs 13 secured by nuts 17 engaging screws 12. The lid 11 is removed to allow an apertured switch-plate 18 to be positioned with its holes 19 aligned with those 20 of the box 10, replacement of the screws 12 and nuts 17 securing the lid and box to opposite sides of the plate 18 which is then mounted on the main frame members of a cubicle switchboard, Fig. 3. The lid 11 is held closed by locking-screws engaging the holes 19, 20. The plate 18 may be dished to offset the lid 11 from the front of the switchboard, and may have a number of apertures to receive a corresponding number of switch-boxes. Specification 894,723 is referred to.
Patent GB-1073098-A (GB)
Title: Light-sensitive material for use in the preparation of printing plates
IPC: C07D215/32
Filed: 1965-05-26
Abstract: Esters of naphthoquinone (1,2)-(2,1)- or (1,4)-diazide sulphonic acid are prepared by reacting the corresponding diazide sulphochloride with a hydroxyquinoline, a hydroxybenzoquinoline or alkyl substituents or either, or a condensation product of a hydroxyquinoline with formaldehyde, in an organic solvent in the presence of alkaline acid-binding agent to produce the ester. 5-Methylene bis-(6-hydroxyquinoline) may be obtained by neutralizing the hydrochloride thereof, which hydrochloride has been prepared by reacting 6-hydroxyquinoline and formaldehyde in the presence of hydrochloric acid.
Patent GB-1506238-A (GB)
Title: Production of chlorinated derivatives
IPC: B01D53/86
Filed: 1975-05-23
Abstract: 1506238 Oxyhydrochlorination B F GOODRICH CO 23 May 1975 [22 July 1974] 22534/75 Heading C2C Chlorinated derivatives of ethylene are produced by oxyhydrochlorination of ethylene or a chlorinated ethylene derivative; separating in a stream from the process any unwanted chlorinated ethylene derivatives and other byproducts ; injecting the stream into a combustion catalyst bed comprising 10-50% by weight of Cr 2 O 3  and 90-50% by weight of Al 2 O 3  and/or SiO 2 , the catalyst having a surface area of at least 10 sq.m./g.and being non-friable and resistant to attrition; injecting O 2 -containing gas containing #2 moles of O 2  per mole of C in the stream into the bed along with the stream; maintaining the bed at 300-450 C. to produce a mixture of hot combustion gases comprising HCl and being substantially free of Cl 2  and chlorohydrocarbon materials; and recycling the mixture of gases to the oxyhydrochlorination step. The catalyst is preferably maintained at 350-400 C. and at 25-150 p.s.i.g. It is fluidized by the injection of O 2 -containing gas thereinto. The process is suitable for use in the production of vinyl chloride.
Patent GB-200727-A (GB)
Title: Improvements relating to power transmission gearing systems
IPC: B61C9/38
Filed: 1922-08-18
Abstract: 200,727. Metropolitan-Vickers Electrical Co., Ltd., (Westinghouse Electric & Manufacturing Co.). Aug. 18, 1922. Motors, gearing for. - In power transmission systems applicable to electrically driven railway vehicles &c. of the type in which a torsionally flexible shaft is secured to one end of a concentric quill shaft carrying a gear member, the quill shaft is journaled in bearings located at opposite sides of the gear member and the flexible shaft is in part also surrounded by a hollow shaft secured thereto and journaled at one end in one of the bearings of the quill shaft. In the form shown, two pinions 16 are driven simultaneously from the hollow armature shaft 4 of an electromotor 3. The pinions are keyed on quill shafts 14 secured by nuts on the coned ends of the flexible shafts 10, 11 of spring steel &c., which are enlarged at their ends 12, 13 for securing to the shaft 4. The pinions are supported on bearings 5, 6 in the motor casing and bearings 17 carried in brackets 18, the hollow shaft 4 being supported at both ends by the bearings 5, 6. In a modification, one pinion only is driven, the flexible shaft being secured to the shaft 4 within the bearing at the opposite end of the casing.
Patent GB-386020-A (GB)
Title: Improvements relating to electric signalling apparatus for transmitting either visible or audible signals
IPC: F21V23/00
Filed: 1931-08-10
Abstract: 386,020. Signalling-apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and STACE, A. T., 2, Poultney Road, Coventry. Aug. 10, 1931, No. 22593. [Class 118 (ii).] Electric signalling -apparatus of the kind used for transmitting either visible or audible signals by the Morse Code comprises a tapping switch 7, a lamp mounting 10, a buzzer 3 and a battery connection 14, together with a change-over switch 9 adapted alternatively to prepare a circuit to be completed by the tapping switch for the lamp or for the buzzer from the battery connection, the apparatus being mounted on one side of a panel 1 having a cover member 2, preferably hinged thereto and adapted to encase the whole apparatus together with the lamp 8, and battery 6. The tapping switch 7 comprises a resilient conducting arm 12 and a button 13, the depression of which causes the arm 12 to contact with the member 14 having tongues 15 for connection to the battery terminal. The change-over switch 9 comprises a knob 16 projecting through a slot in the end of the panel and riveted at the end to a slider 19 having a portion pressed out at right-angles to form a contact member co-operating with contacts 20, 21 fixed to an insulating strip 11 covering the upper part of the panel. The contact 21 completes the circuit through conductors 22, 23 to the buzzer 3, and the contact 20 connects with the centre lamp contact. The slider 19 of the change-over, switch is adapted, when in its position nearest the button 13 of the tapping switch 7, and thus arranged to complete the lamp circuit, to lock the tapping switch in either the closed or the open position by engagement with a projection 24 on the member 13. A lens 25 is provided for the lamp in the cover 2, which is also provided with a clip 26 adapted to maintain it in the closed position. A strap 27 is arranged at the back of the panel 1 co-operating with clips to provide a loop of variable length to act as a handle, the free end of the strap being provided with a hole 31 for attachment to a button in the user's clothing.
Patent GB-993722-A (GB)
Title: Improvements in or relating to metal clad circuit breakers for high voltages
IPC: H01H33/48
Filed: 1963-06-06
Abstract: 993,722. Switchgear structures. " COQ." N.V. June 6, 1963 [June 13, 1962], No. 22625/63. Heading H2B. A vertically withdrawable circuit breaker consists of a pair of fixed contacts 6, 7 separated by an insulating tube 8 and connectable by a sliding rod contact 5, the breaker being mounted together with its actuating mechanism on the lid of an earthed metal casing 1. The casing contains a cylindrical insulating member 2 in which the breaker slides, the intermediate space 3 accommodating bus-bars 4, cable connections 15 and being charged with insulating fluid. In the normal position shown the breaker contacts 6, 7 are in engagement with contacts 14, 17 respectively associated with a cable connection 15 and a bus-bar 4. In the withdrawn position (Fig. 2, not shown) contacts 6, 7 engage with contacts 18, 19, the latter being connected with the casing, permitting the breaker to be used as an earthing switch for the cable. The breaker is withdrawn through a linkage by a lever 24 and is held in either position by a spring-loaded latch 28. A pin 31 on a breaker-operating handle 13 prevents release of the latch, and thus withdrawal, while the breaker is closed. A probe may be inserted through a guide 22 to engage with contact 18 for measuring purposes.
Patent GB-327080-A (GB)
Title: Improvements relating to the control of the fuel injection in water tube boilers
IPC: F23N1/00
Filed: 1929-07-24
Abstract: 327,080. Ramsay, C. G. July 24, 1929. Fluid-actuatated valves.-A valve 26, Fig. 3, for controlling the fuel supply to a water tube boiler in accordance with the water level therein, is operated by a piston 24 under the control of a float-actuated needle-valve mechanism 1, 12, Fig. 2, mounted within the steam drum 4 of the boiler. The, float 1 is disposed within a surge chamber 5 supported in the steam drum 4 and is pivoted at 7 and attached at 10 to the spindle 12 of a needle valve 13, ,being also counterbalanced by a weight 9. On the fall of water below a predetermined level in the boiler, the needle 13 is opened and admits steam through a cock 19, a pipe 20, and an alarm whistle (not shown) to the cylinder 23, Fig. 3, of the fuel control valve 26, said steam acting on a piston 24 so as to close the valve 26. A spring-controlled fork 27a in conjunction with grooves 29 locks the valve in the closed position until opened manually by releasing the fork 27a and operating a Eandle 31.
Patent GB-373491-A (GB)
Title: Improvements in or relating to sealing devices for shafts
IPC: F16J15/32
Filed: 1931-08-12
Abstract: 373,491. Stuffing-box substitutes. AKTIEBOLAGET SEPARATOR, 8, Fleminggatan, Stockholm. Aug. 12, 1931, No. 22797. Convention date, Sept. 5, 1930. [Class 122 (v).] Means for sealing a rotating shaft 2 between high and low pressure chambers 1, 8, while permitting lateral motion thereof, comprises an elastic sleeve 6 of rubber, leather, &c., secured to the casing 3 at its end remote from the chamber 1 and having a lining 9 of cloth forming the wearing surface.