baber/WOPTO huggingface dataset:
Patent GB-523092-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B9/08
Filed: 1938-12-20
Abstract: 523,092. Photographic cameras. BRONZAVIA SOC. ANON. Dec. 20, 1938, No. 26499/39. Convention date, Dec. 20, 1937. Divided out of 522,914. [Class 98 (i)] In a photographic camera especially for aerial photography, in which an electromotor is provided for tensioning the shutter and feeding the film, and the operations involved in making an exposure are initiated by a current impulse which causes the armature of an electromagnet to release the shutter at the beginning of its movement, the motor is started by the armature at the end of its movement. In the camera shown, the current impulse causes a magnet 34 to attract an armature 35 secured to a rotatably mounted spindle 63, the movement of which withdraws a finger 67 carried by it from a pawl 50 and thereby releases the shutter. The armature closes, at the end of its movement, contacts 36 thereby energizing a motor 37, which through a flexible shaft 51 and reducing gears 52, 53 drives a worm and wheel gear 54, 55 which rewinds the shutter spring 48, and a similar gear 56, 57 operating the film feed roller 58. In order to maintain the motor circuit after cessation of the current impulse until the shutter rewinding and film feeding are completed, an arm 64 on the shaft 63 carries a pin which normally engages in a recess in the face of the worm wheel 58. When the magnet 34 is excited the armature 35 rocks the shaft 63 and causes the pin to move out of the recess. The wheel 58 is then rotated by the motor so that on cessation of the current impulse the pin contacts with the face of the wheel and prevents the return movement of the shaft 63, so maintaining the contacts 36 closed. At the end of the operations the pin falls again into the recess in the wheel 58, so breaking the circuit of the motor and also locking the parts driven by it. The shutter consists of two sectorshaped blades 44, 45 mutually adjustable on a spindle 46 to form a sector-shaped slot of variable width between them, as described in Specification 494,524. To prevent operation of the shutter during this adjustment, the adjusting knob 69 when pushed in to its operative position engages a lug 73 which, through a lever 74 and bar 75 moves a stop 76 into the path of a finger 63<SP>1</SP> on the rod 63, which is thus prevented from rotating. A knob 78 on the rod 63 allows exposures to be made by hand.
Patent GB-663682-A (GB)
Title: Improvements in devices for four colour stereoscopic cinematography
IPC: G03B35/00
Filed: 1949-10-15
Abstract: 663,682. Optical systems. CHRISTIANI, L. Oct. 15, 1949 [Oct. 16, 1948], No. 26528. Class 97 (i) The optical system of Specification 662,803 for producing four images, forming two stereoscopic colour component pairs is modified by the substitution, for the pyramidal prism and a single objective, of four objectives for the final image formation. As shown, pairs of reflectors 3, 3<SP>1</SP> in front of an objective 1, dividing the entrance pupil thereof and causing left- and right-eye stereoscopic images to be formed in superposition in the aperture 2<SP>1</SP> in a diaphragm 2. A field lens 4 and an objective 5 together have a principal focal plane at the diaphragm. and, accordingly, parallel light falls on the four objectives 6 0 <SP>1</SP>, 6 0 <SP>11</SP>, 6 0 <SP>111</SP>, 6 0 <SP>IV</SP>, which form four images at 9 in a normal film frame space. Each objective is associated with a colour filter at 7, the pairs of filters passing the light beams from the original stereoscopic images being complementary.
Patent GB-206154-A (GB)
Title: Method of and apparatus for automatic control of humidity and temperature
IPC: G05D23/275
Filed: 1923-10-25
Abstract: 206,154. Rritish Arca Regulators, Ltd., (Assignees of Aktiebolaget Area Regulatorer). Oct. 25, 1922, [Convention date]. Valves controlled by pilot and relay valves.-Apparatus Jor automatically controlling the humidity and temperature prevailing, for example, in a chamber for drying tobacco consists of controllers, such as a fan 3, Fig. 1, for controlling the now of air through the drying chamber 2, or a valve 32 for controlling the action of a heating device to the chamber, the controllers being regulated bv servo-motors 11 through which a flow of liquid is maintained, the rate of flow and therefore the pressure in the servo-motors depending upon the position of checking- members R, Figs. 1 and 2. in the liquid circuits. The checking-members 8 are in turn controlled by threads 14 which are susceptible to changes in humidity or temperature. The members 8 are pivoted on knife edges 16 and are subject to the action of springs 17 which serve to keep the threads taut. Specification 116,074, [Class 64 (ii), Heating systems &c.], is referred to.
Patent GB-1035067-A (GB)
Title: Improvements in or relating to thermo-electronic energy converters
IPC: H01J45/00
Filed: 1964-06-29
Abstract: 1,035,067. Thermionic generators. CSFCOMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. June 29, 1964 [July 6, 1963], No. 26713/64. Addition to 903,375. Heading H1D. A thermionic converter comprises an electron collector 8, and an electron emitter 1 provided with a number of capillary channels 2 which extend between the interelectrode space and a space on the opposite side of the emitter communicating with a source 11 of metal vapour having an ionization potential lower than the work function of the emitter material. During operation, the metal vapour traverses the emitter channels 2 and is ionized by contact with heated emitter 1, and is also subjected to volume ionization by irradiation with light, which together with heat energy may be directed through sapphire window 3. The emitter 1 may be of tungsten and may comprise an assembly of straight or curved capillary tubes or a porous sintered body, the collector 8 being of copper. The metal vapour source may comprise a caesium reservoir 11 provided with a heater 12.
Patent GB-810854-A (GB)
Title: Improvements in or relating to the coating of polyethylene terephthalate film
Inventor: GAYLORD NORMAN GRANT
IPC: C08J7/052
Filed: 1956-09-03
Abstract: 810,854. Coated polyethylene terephthalate films. DU PONT DE NEMOURS & CO., E. I. Sept. 3, 1956, No. 26895/56. Class 140. Oriented polyethylene terephthalate film, e.g. a biaxially-oriented heat set film, is coated with an aqueous dispersion of a copolymer of vinylidene chloride and at least one other polymerizable mono-olefinic monomer, said copolymer containing 80 to 97 per cent by weight of vinylidene chloride, said dispersion containing at least one per cent by weight of copolymer of at least one dispersing agent in the form of an alkali metal or ammonium alkyl benzene sulphonate wherein the alkyl group may contain from 5 to 20 carbon atoms. The mono-olefinic monomer may be of general formula where R represents hydrogen, halogen or a saturated aliphatic radical and X is selected from one of the following groups: Cl, Br, F, CN, C 6 H 5 , COOH, OC 6 H 5 , CONH 2 , CONH.R<SP>1</SP> and CONR<SP>1</SP> 2 , where R<SP>1</SP> is alkyl, e.g. alkyl acrylates and methacrylates having up to 8 carbon atoms in the alkyl group, phenyl, cyclohexyl, p-cycloheKylphenyl, ethoxyethyl, chloroethyl, 2-nitro-2- methylpropyl acrylates or methacrylates, methyl and octyl alpha chloroacrylate, methyl isopropenyl ketone, acrylonitrile, mehecrylonitrile, methyl vinyl ketone, vinyl chloride, acetate, propionate, chloroacetate, bromide, naphthalene and pyridine, or styrene, ethyl vinyl ether, N-vinyl phthalimide, succinimide, carbazole, or isopropenyl acetate, acrylamide, methacrylamide, or mono alkyl substitution products thereof, phenyl vinyl ketone, diethyl fumarate, diethyl maleate, methylene diethyl malonate, dichlorovinylidene fluoride, itaconic acid and its dimethyl, diethyl and dibutyl esters, maleic anhydride, allyl glycidyl ether and other unsaturated aliphatic ethers, e.g. divinyl ether, allyl, 2-methylallyl and allyloxymethyl ethers described in U.S.A. Specification 2,160,943. The dispersion may contain one or more surfaceactive agents in addition to the alkali metal or ammonium alkyl benzene sulphonate, e.g. sodium lauryl sulphate, sodium beta-naphthalene sulphonate condensed with formaldehyde, dioctyl sodium sulphosuccinate and alkyl aryl polyglycol ether. Suitable dispersing agent referred to is sodium dodecyl benzene sulphonate. Specifications 578,079, [Group IV], and 718,422 are referred to.
Patent GB-279081-A (GB)
Title: Improvements in stop-cocks
IPC: F16K3/18
Filed: 1927-10-11
Abstract: 279,081. Karnath, K. Oct. 12, 1926, [Convention date]. Addition to 262,116. Sluice valves; wedging or jamming.-The sliding disc valve of the parent Specification which has rotary cams for forcing the disc or discs to their seatings in closing, and for easing the peripheral edges of the discs away from their seatings in opening, is modified in that the cams are all disposed upon one common operating spindle. The closing cams 43, 44, Fig. 1, are centrally disposed on the same spindle 45 as the opening cams 48, 49, and the spindle 45 is rotated by a worm 54, Fig. 2, and worm wheel 53; a projection 64 from the worm wheel is guided in a slot in the pillar 61 so as to prevent such rotation except when the valve, is in its lowermost position with the projection disengaged from the pillar. The spindle, 45 has rotary engagement with the screwed operating' spindle by means of pins 56 and a groove 55 ; in a modification a ball bearing yoke member is used. The cam members 48, 49 are arranged to come into operation in succession.
Patent GB-754068-A (GB)
Title: Portable automobile garage
IPC: B60J11/00
Filed: 1954-09-20
Abstract: 754,068. Car covers. MARTIN, G. Oct. 11, 1954 [Sept. 20, 1954], No. 27112/54. Class 20(1). A car cover comprises fabric or metal sheets supported on a framework which is itself supported detachably on the front and rear bumpers. To assemble the cover over the car, upstanding rectangular end frames 1 for the front and back are located in sockets 12 permanently fixed on the bumpers 11. Thereafter rectangular side frames 6 are secured by latches 5 to end frames 1. Roof frames 8, Fig. 5, carrying latches are clipped to the top bars of the side frames 6. Fabric or sheet metal panels are then placed in position on the frames which allow access to any part of the car. The end frames 1 are fixed to the bumpers by depending pins with surrounding springs, the pins fitting into the bumper sockets and secured by small cross pins. The side frames 6 are secured to the end frames by clamp pins 4a fitted into holes in corner plates 4. The roof is secured by brackets 3 on the top bar of the end frames 1 and by hooks 7 on the top bar of the side frames 6.
Patent GB-349867-A (GB)
Title: An improved adjustable seat
IPC: A47C9/06
Filed: 1930-09-11
Abstract: 349,867. Adjustable seats. GRAY, J. R., (trading as GRAY & SON, D.), 175, Holburn Street, Aberdeen. Sept. 11, 1930, No. 27116. [Class 52 (ii).] An adjustable seat comprises a pair of spaced vertical brackets 7, a support 9 for said brackets, a journal 10 at the lower front portion of each bracket, a series of notches 14 in a curved upper front edge of each bracket, a seat proper 6 having a pair of projections 15a for co-operating with the notches and a pair of stays 12, journalled at one end to the underside of the seat and at the other end 12a in the journal in the bracket. The seat may be folded into the position shown in Fig. 3.
Patent GB-640528-A (GB)
Title: Improvements in and relating to glass-to-metal seals
IPC: C03C27/02
Filed: 1947-10-09
Abstract: 640,528. Glass-to-metal seals. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 9, 1947, No. 27164. Convention date, Oct. 11, 1946. Drawings to Specification. [Class 56] The glass of a glass to metal seal for XRay generators contains cerium oxide as a discolouration ingredient and the glass and metal have a coefficient of thermal expansion of (4.7Œ0.3) Î 10<SP>-6</SP> cms. per ‹C. Desired properties of glass for the envelopes of X-Ray tubes are as follows, (a) a low discolouration rate, i.e., so that it does not darken on exposure to X-Rays, (b) coefficient of expansion of (4.7Œ0.3) Î 10<SP>-6</SP> cms. per ‹C. in the range 1-300‹C., (c) dielectric strength about 100 volts per mil at 200‹ C. and 500 volts per mil at normal atmospheric temperature 25‹ C., (d) dielectric constant 4-8 at 60 cycles and 110‹C., (e) electrical resistivity of the order of 10(<SP>6</SP>Œ<SP>0</SP>-<SP>5</SP>) ohms cm<SP>3</SP>. (f) power factor 0.01-0.05 at 60 cycles and 100‹C. Glass with these properties is formed from a batch containing SiO 2  about 64 per cent by weight, B 2 O 3  about 23 per cent, Na 2 O about 6 per cent, Fe 2 O 3  and Al 2 O 3  about 5 per cent, Li 2 O about 1 per cent, CaO and MgO about 0.35 per cent, K 2 O about 0.2 per cent, Sb 2 O 3  about 0.12 per cent AS 2 O 3  about 0.015 per cent, and CeO about 1 per cent and not to exceed 5 per cent, but these properties may be varied and ingredients other than CeO may be replaced or omitted. The glass has a softening point of 700‹C. or less, and the coefficient of expansion is substantially the same as that of Fe/Ni alloys, e.g., steel containing 42 per cent Ni and makes a good seal with ferrous metal alloys consisting of Fe with about 29 per cent Ni, 17 per cent Co, and 0.3 per cent Mn.
Patent GB-1398432-A (GB)
Title: Melting and casting arc furnace
IPC: H05B7/18
Filed: 1972-06-09
Abstract: 1398432 Casting processes; continuous casting M P SCHLIENGER 9 June 1972 27171/72 Heading B3F [Also in Division H5] To prevent electrode deterioration in a rotating electrode wheel arc furnace C of the type disclose in Specifications 1,268,253 and 1,240,547 the arc 89 is held stationary at desired locations in the melt 74, whilst it originates from continually changing portions of the rotating electrode wheel 76, by energizing any one of a plurality of electromagnets positioned around the crucible 72 and each comprising a substantially C-shaped armature, such as 82 carrying a coil 85.
Patent GB-353753-A (GB)
IPC: H01H29/16
Filed: 1930-09-11
Abstract: 353,753. Mercury switches ; interrupters. BOCK, M. M., 61, Alfredstrasse, Hamburg, Germany. Sept. 11, 1930, No. 27197. Convention date, Feb. 8. [Class 38 (v).] A multi - circuit switch has fixed contacts consisting of a number of strips of metal a1 .. a28 of graduated lengths embedded in a strip b of insulating material, and connected to the individual circuits. The movable contact comprises a bath d of mercury caused to reciprocate between guides e1, e2 by means of a rod h and a motor-driven cam k to close circuits successively. An interrupter arm l<1> controlling contacts o, p, in series with the mercury bath and associated contacts, is operated by the cam k which rotates in an anticlockwise direction to break the circuit suddenly at o, p before the contacts al .. a28 are removed from the mercury. In a modification, the fixed contact-member comprises a number of strips of graduated length embedded edge-wise throughout part of their width in a strip of insulating material, and the reciprocating-member consists of a slotted spring plate supported by a straight bar.
Patent GB-717767-A (GB)
Title: Improvements in and relating to fuel injection pumps
IPC: F02M41/08
Filed: 1951-11-20
Abstract: 717,767. Fuel injection pumps. SCHIN DELE, W. Nov. 20, 1951 [Nov. 22, 1950], No 27232/51. Class 102 (1). A fuel injection pump, particularly for use with low boiling point fuels, has a pump plunger 41 and a spring-loaded accumulator plunger 46 disposed in a cylinder 40 and defining between them a pump chamber to which fuel is supplied through a port 58, controlled by the pump plunger, fuel duct 82 and a port 81 controlled by at least one groove 80 in a rotary valve 61 driven from the pump shaft 24 and displaceable axially for controlling the quantity of fuel supplied to the pump chamber; a flow throttling means such as an adjustable screw 83 is provided in the fuel supply passages. The pump has a plurality of parallel cylinder barrels 40, disposed in a housing 10, each containing a spring- loaded pump plunger 41 and an accumulator plunger 46 abutting against a cup washer 50 loaded by a spring 51. The pump plungers are actuated by a swash plate 23 on the drive shaft 24 through a pressure plate 30 supported on a part-spherical projection 22 of the housing 10. The cup washers 50 have flanges 90 which cooperate with chambers 92 to form feed pumps which circulate fuel from a supply tank through a passage 33, chambers 32, 92, passage 94 and check valve 95 and back to the tank so that the chamber 32 is maintained full of fuel. The movement of the accumulator plungers 46 to the left is limited by the engagement of the flanges 90 with a wall 91 so that during their outstroke the pump plungers separate from their accumulator plungers to provide the pump chambers therebetween which are successively supplied with fuel from the chamber 32 under the control of the rotary control valve 61. The latter is movable axially against a spring 66 by a lever 70 and tappet 68 for varying the period of opening of the ports 81. The lever 70 may be adjusted manually or automatically to maintain the correct air/fuel ratio. During the instroke the plungers 41 close the inlet ports 58 and the fuel trapped between the pump and accumulator plungers is delivered through ports 55, passages 53 in the pump barrels, ports 54, annular grooves 52 in the pump plungers and throttle bores 56 to outlets 57 leading to the injectors. An additional barrel 100 containing a plunger 101, operated by the pressure plate, and an accumulator plunger 102 forms a lubricant pump to which lubricant is supplied through a passage 108 and is delivered through passages 110 to the parts to be lubricated. A relief valve 111 is provided in the lubrication system. The lubricant pump may also supply lubricant to the engine. In another embodiment the flow throttle means comprises a restricted fuel inlet passage in the rotary valve 61.
Patent GB-390075-A (GB)
Title: Improvements in or relating to web-fed printing machines
IPC: B41F3/44
Filed: 1932-10-01
Abstract: 390,075. Printing- machines. NIXON, E. G., Hainault, The Avenue, Wanstead, London. Oct. 1, 1932, No. 27345. [Class 100 (ii).] In a web-printing machine the web is given a variable intermittent feed over a fixed impression bed, and the printing is effected by a continuously rotating printing - cylinder, or cylinders, supported in a reciprocating carriage, the cylinders being formed with recessed portions which clear the web on the return motion of the carriage. The web is led from a roll 51 over guide rollers 53, 54 and after being led over the fixed impression surface 14, Fig. 4, is led to a reciprocating gripper mechanism 58, 59 which advances the web in known manner to an adjustable extent as the gripper is moved to the right by a crank disc 65, and connecting-rod 64, the gripper releasing the web on the return of the gripper carriage. The printed web is led to an adjustable winding-up roll 56, or may be cut into sheets. Two printing-rollers 34, 34a are mounted in a carriage 15 which is reciprocated in guides in a frame by means of cranks 23 and connecting-rods 22, the crank discs 23, 65 being driven by a common drive from a motor 24. The carriage 15 is supported by runners which are carried by bearing strips supported in slots in the machine frame and racks on.the bearing strips are geared to racks on the carriage so as to have a differential motion to reduce friction. The cylinders 34, 34a are geared together and are driven continuously in one direction by gears 42, 47, Fig. 4, which engage fixed racks on the bed and are driven alternately in opposite directions as the carriage reciprocates. Driving-pawls 44, 49 on the gears 42, 47 are arranged to drive the cylinders respectively as the carriage moves to the right and left. For perfecting in two colours a second carriage fitted with two printing-cylinders 70, Fig. 9, is operated by second set of connecting-rods from the crank disc 23, and the web takes the course indicated over the rolls 71, 71, before receiving the first impression, and over the rolls 72 before receiving the perfected impression.
Patent GB-1021405-A (GB)
Title: A high tensile precipitation hardenable structural steel
IPC: C22C38/52
Filed: 1964-07-02
Abstract: A steel comprises: <TABS:1021405/C6-C7/1> the balance, apart from impurities such as phosphorus and sulphur, being iron.  The steels may be hot worked at 850-1150 DEG C., solution treated at 700-1000 DEG C., quenched, and precipitation hardened at 300-600 DEG C.  After the hot working step a diffusion treatment at 1000-1300 DEG C. is preferably applied.
Patent GB-1255383-A (GB)
Title: A switching device
Inventor: YOSHIO TOSHIHIKO
IPC: H01H1/54
Filed: 1969-05-30
Abstract: 1,255,383. Vacuum switches; contacts. TOKYO SHIBAURA ELECTRIC CO. Ltd. 30 May, 1969 [30 May, 1968], No. 27425/69. Heading H1N. A vacuum switch is provided with means to increase the contact pressure during heavy current flow consisting of two bent strips 19, 20 which are connected in series and lie alongside one another as shown so as to repel one another and thus to supplement the force of the contact pressure spring 23. One strip 19 is attached to a member 15 moved by an operating lever 11. The second strip 20 is attached to a member 21 fixed to a contact rod 31 slidable in the member 15.
Patent GB-1478889-A (GB)
Title: Process for rendering organic fibrous material flame retardant by dry thermal transfer
IPC: D06P1/649
Filed: 1974-06-20
Abstract: 1478889 Flame proofing by transfer process C1BA-GEIGY AG 20 June 1974 [22 June 1973 26 July 1973] 27441/74 Heading D1P A dry thermal transfer process for flame proofing organic fibre material involves applying a specified halogenated flame proofing agent to an inert carrier material which is then brought into contact with the organic fibre material surface and the combination is heated at not less than 80C, if necessary with use of mechanical pressure, until the flame proofing agent has been transferred to the fibre material, and the fibre material is then separated from the carrier. The flame proofing agent is a compound of the formula I wherein A denotes halogen, hydroxyl, or alkoxy carbonyl (2-5C), halogenated alkoxy (1-4C) or halogenated phenyl and the X substitutents each denote halogen, alkyl (1-4C), hydroxyl or hydrogen, provided that at most one of the radicals X represents alkyl or hydroxyl and at least one of the radicals X represents halogen, and A can together with an adjacent radical X represent a carboxylic anhydride group. The carrier material may be a paper sheet, an aluminium or steel foil, a steel fibre fleece, a polymer coated fabric or a polytetrafluoroethylene fibre felt. The compound I may be applied to the carrier material alone e.g. by sprinkling as a powder, or in a preparation which contains at least one solvent and/or water, and optionally a binder stable below 250C e.g. ethyl cellulose, and the carrier then dried. Application of the carrier to the fibre material may be by heating plates with or without pressure, a hot calender for a tunnel-shape heating zone and optionally in vacuo, the temperature preferably being 150-220C. The organic fibre material may be in the form of flocks, tow, yarn, filaments, woven or knitted fabrics, fibre fleeces or needle punched felt or pile carpets, and may comprise synthetic polyamide fibres, polyacrylonitrile fibres, linear polyester fibres or mixtures thereof with one another or with other fibres such as viscose or wool.