baber/WOPTO huggingface dataset:
Patent GB-1467306-A (GB)
Title: Apparatus for feeding photographic film
IPC: G03D3/13
Filed: 1974-08-05
Abstract: 1467306 Film-processing machine ARNOLD & RICHTER KG 5 Aug 1974 [9 Aug 1973] 34407/74 Heading G2X In a photographic film-processing machine having a plurality of tanks for processing liquid and apparatus for feeding the film through successive tanks the feeding apparatus comprises a plurality of frames, one frame being provided for each tank and being insertable therein, feed rolls 5 to 10 independently mounted in each frame for resilient displacement and adapted to feed the film without the use of perforation-engaging sprockets and direction changing rolls 11 to 18 carried by each frame, the rolls being arranged so that the film can be passed about them in loops. A driving cylinder 32, 33 is normally spaced from the feed rolls of each frame and individually rotates the feed rolls by friction whenever they are displaced into contact therewith. Means are provided that result in rotation of the feed rolls of successive frames at progressively faster speeds in the direction of film travel, to allow for elongation of the film during its travel through successive tanks. Resilient mounting of the feed rolls 5 to 10 in the one frame shown is attained by suspending them on rods 19 by yokes 77 to 82 which act as mountings for the elastic straps 63 to 68, the rods 19 and 24 passing through vertical slots in members 26 to 31 of each yoke. The direction changing rolls 11 to 18 are resiliently mounted in an analagous way. When there is sufficient tension in a loop of film the friction collars on feed rolls 5 to 10 are pulled individually into contact with driving cylinders 32, 33. Initial adjustment of the spacing of the rolls is effected by positioning slides 42 and 43 on the frame using control rod 91 and set screw 92. Tension in a given loop is controlled by its roll being brought into contact with drive rolls 32, 33 and also by variation in the spacing of the driven roll and the corresponding freely running rolls 11 to 18. Rotation of the feed rolls at progressively faster speeds can be achieved by making them of different diameter from frame to frame. Another method is to use a sensor, such as a magnetic clutch, for the tension of the loops and use it to control the speed of the drive imported through pinion 50. A further method is to use adjustable gearing controlled by the film tension or by using drive pinions 50 on successive frames with different numbers of teeth.
Patent GB-927545-A (GB)
Title: Improvements in magnet systems
IPC: H04R9/02
Filed: 1959-10-12
Abstract: 927,545. Magnets. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 12, 1959 [Oct. 15, 1958], No. 34507/59. Class 35. [Also in Group XXXIX] The stray field of an annular permanent magnet assembly, e.g. for a loud-speaker, is opposed by flux from a second permanent magnet. The assembly comprises a core 1 with end-plates 2 and 4 of soft magnetic material, and an annular permanent magnet 3, preferably of anisotropic ferrite. A thin-walled easing 6 of soft magnetic material defines an air gap 7, with the rim of the end-plate 4 larger than the working air gap 7a. Flux opposing that of the main magnet 3 in the gap 7 and in the housing 6 is provided by a disc-shaped or annular second permanent magnet 5. This magnet, the housing and the gap 7 are proportioned so as not to provide any of the flux in the working gap 7a. The gap 7 may be filled with a non- magnetic material and the housing may not contact the main magnet 3 as shown, but a layer of synthetic resin may be interposed. The main magnet may be magnetized after assembly in a loud-speaker but before the housing and second magnet are fitted.
Patent GB-979572-A (GB)
Title: Improvements in or relating to aerial mountings
Inventor: RICHARDS CLEMENT JOHN
IPC: H01Q1/12
Filed: 1962-09-10
Abstract: 979,572. Aerials. MARCONI CO. Ltd. Aug. 8, 1963 [Sept. 10, 1962], No. 34524/62. Heading H4A. A dish aerial 1 is adjustably supported from a structure 4 such as a mast by means comprising a universal joint 2, 3 fixed to a point on the back of the aerial and three support rods 9, 10, 11 of adjustable length fixed to different points on the aerial circumferentially spaced from each other and the universal joint. Further adjustable support rods such as 13 may be provided and in the embodiment described the rod 10 fixed at a point diagonally opposite the universal joint extends downwards at an acute angle; the effective length of the support rods is adjusted by nuts on screwed portions of the rods.
Patent GB-1271224-A (GB)
Title: Vulcanisation process
Inventor: ASHWORTH BRIAN THOMAS
IPC: C08K5/5398
Filed: 1968-07-19
Abstract: 1,271,224. Thiophosphoryl polysulphide vulcanizing agents. IMPERIAL CHEMICAL INDUSTRIES Ltd. 8 July, 1969 [19 July, 1968], No. 34539/68. Heading C3E. Bis-(dihydrocarbyl thiophosphoryl) tri- and tetra-sulphides are used as vulcanizing agents for rubbers. They can be used on their own or used with elemental sulphur, thiazoles, sulphenamides, dithiocarbamates, or thiurams.
Patent GB-306234-A (GB)
Title: Improvements in load supporting structures
IPC: E04C3/38
Filed: 1927-12-21
Abstract: 306,234. Nielsen, O. F. Dec. 21, 1927. Girders.-Bridges formed with a rigid loadcarrying member supported by other members from a cable or arch, have the connecting members c so constituted that they are incapable of resisting thrust. The members c are inclined at various angles and the suspending member a may be a cable, a three-point arch, or a rigid arch. The inclined connecting members may be disposed at the centre portions only of the bridge, where the effect of the load is greatest, vertical tension members only occurring a.t the ends.
Patent GB-1083175-A (GB)
Title: Blades for high-speed axial-flow compressors
Inventor: MIDGLEY PETER JOHN
IPC: F01D5/28
Filed: 1965-08-13
Abstract: 1,083,175. Axial-flow compressors. BRITISH AIRCRAFT CORPORATION (OPERATING) Ltd. Aug.11, 1966 [Aug.13, 1965], No.34788/65. Headings F1C and F1T. A blade 4 of an axial-flow compressor is constructed by moulding a glass-reinforced plastics material over a flattened end 6 of a steel tube forming the blade root. The end 6 has holes 14 to improve bonding. Moreover, bonding is improved by the process of first applying resin and powder ingredients to the cleaned tube, curing the ingredients by heating and then moulding the plastics material on to the tube. A thrust bearing may be secured to a plug 18 screwed, bronzed, or welded to the tube. The plug may carry a lever arm movable in a plane normal to the axis 19 for adjusting the blade pitch.
Patent GB-1317783-A (GB)
Title: Electrodeposition of osmium
IPC: C25D3/50
Filed: 1970-07-17
Abstract: 1317783 Electro-deposition of osmium ENGELHARD MINERALS & CHEMICALS CORP 17 July 1970 [18 July 1969] 34909/70 Heading C7B [Also in Division H1] Osmium is electro-deposited from an aqueous alkaline solution having dissolved therein an octavalent Os compound and an alkali metal salt of sulphanic acid (e.g. OsO 4  and sodium or potassium sulphanate), the solution having previously been heated to change its colour from reddishbrown to yellow. The pH may be 13 to 14 with the alkalinity provided by KOH or NaOH. The solution may also contain an inorganic buffering agent such as an alkali metal phosphate, carbonate or borate. The solution may be agitated during plating and may be operated at 50 to 90‹C. using 2 to 40 amps/sq ft. The anode may be Pt or stainless steel. The Os may be plated on-to Pt, Rh, Mo, W, Ti, Ta, Au, Ag, Ni, Cu, alloys thereof or the following metals bearing a gold plating: - Mo, W, brass or Cu. The Os may be overplated with Pt, Pd, Rh, Ru, Ir, Au or Ag. The electro-deposition of Os may be conducted with the anolyte separated from the catholyte by a porous ceramic cup. Ti, Ta or W coated with Os are useful as low emission grid wires in cathode ray tubes.
Patent GB-968374-A (GB)
Title: Workpiece indexing means in stud welding apparatus
Inventor: WEBB JOHN THOMAS HIRD
IPC: B23K9/20
Filed: 1959-10-15
Abstract: 968,374. Welding by pressure. BIRWELCO Ltd. Jan. 16, 1961 [Oct. 15, 1959], No. 34931/59. Heading B3R. Apparatus for effecting axial and rotary movement of a cylindrical workpiece in an apparatus for welding studs to and in angularly spaced positions on the exterior of the workpiece comprising a fixed welding head and means for gripping the workpiece and for turning it about its axis through a predetermined angle after each welding operation includes an abutment angularly and axially offset relative to the welding head and adapted to be engaged by a stud which has been welded to the workpiece so that as the workpiece is turned the engagement of the stud with the abutment causes the workpiece to be advanced axially. A tube 1 supported on adjustable rollers 18, 19 extends through a pair of shoes 12 mounted on arms 13 pivoted at 14 above the tube and acted on by a piston-and-cylinder 15 below the tube for moving the shoes into and out of gripping engagement with the tube. An extension 16 on one arm 13 is coupled to another piston and cylinder device which turns the arms and shoes about the tube axis when the shoes grip the tube. A welding head 8 having means for gravity feeding studs 2 and refractory ferrules 3, is provided above the tube. The spindle 5 supporting the roller 18 carries a smaller roller 4, out of contact with the tube, whose axis is inclined to the tube axis. In operation studs welded to the tube engage the roller 4 which causes the tube to be moved axially forward and the ferrules 3 are broken under the roller 4. Instead of the roller 4 an inclined plate &c., a frusto-conica roller, a cylindrical or frusto-conical roller with its axis intersecting the axis of the workpiece at other than a right-angle &c. may be employed.
Patent GB-1401985-A (GB)
Title: Organic phosphite polymers
IPC: C08G18/65
Filed: 1972-07-26
Abstract: 1401985 Polymeric phosphite esters; polyurethane foams UNIROYAL Inc 26 July 1972 [4 Aug 1971] 34944/72 Headings C3P and C3R [Also in Division C2] The invention comprises polymeric phosphite esters comprising the reaction products of (a PCl 3 , PBr 3  or PI 3  and (b) pentaerythritol (as defined below) wherein the molar ratio of (a) to (b) is between 0À5 to 1 and 1À25 1, with optional further reaction with HCl, HBr or HI, the polymer being a viscous liquid at normal temperature and pressure conditions containing between 2% and 43% by weight of Cl, Br or I or mixture thereof and having an average OH number of 20-1000. The pentaerythritol is defined as being either pure pentaerythritol or pentaerythritol containing up to 15% by weight of dipentaerythritol and the molar proportion of the pentaerythritol is taken as the weight of the pentaerythritol (including any dipentaerythritol) divided by its molecular weight (136). The reaction to form the products is suitably carried out in an inert solvent, e.g. xylene or monochlorobenzene at 5 to 120 C. and the hydrogen haline gas evolved during the reaction is substantially retained in the reaction vessel to react with the phosphite triesters first formed with resultant formation of halogen-containing polymeric phosphite diesters. When PCl 3  is used in the reaction and the evolution of HCl has substantially ceased additional hydrogen halide, especially hydrogen bromide, can be added to the mixture to complete the conversion of any unconverted phosphite triester to the diester, which when HBr is used would their contain both chlorine and bromine. The products are useful as reactive flameretardants and heat stabilizers in polyurethane foams as reactive flame-retardants in polyester resins, as light stabilizers for polypropylene and as stabilizers for styrene-butadiene rubbers and a detailed example is given for each of such applications. They may also be used as additives for polyvinyl chloride and ABS type polymers. When used in polyester-forming mixtures the latter may also contain unsaturated monomers, e.g. styrene, vinyl toluene, diallyl phthalate, methyl methacrylate or triallyl cyanurate.
Patent GB-1323964-A (GB)
Title: Apparatus for controlling the relative position between two relatively movable members
IPC: G05B19/39
Filed: 1971-07-26
Abstract: 1323964 Electric selective signalling DIABLO SYSTEMS Inc 26 July 1971 [14 Sept 1970] 35010/71 Heading G4H A closed loop servo system controlling the movement of read/write heads 11 on a magnetic disc 12 comprises means for accurately positioning each head at a desired location on a track. Movement of a motor 14 provides cyclic signals A, B each cycle of which is indicative of one unit of turn of the motor shaft 16 which in turn corresponds to the crossing of a track on the disc; from these are obtained a signal E and a level control signal 31 ("F") whose difference 32 controls the motor. To move each head from one track to another, the number of tracks which must be crossed is set on a difference counter 47, Fig. 3; the count is decremented by pulses (one for each track crossed) C.D obtained as shown from signals A, B and B. When the required track is reached counter 47 emits a signal which cuts off signal F via a FET 52 and which connects signal A via a FET 54; signal A serves as a position error signal until the head is brought to a halt whereas signal E is maintained to provide stability in the system. The signal C.D is designed to be symmetrical about a zero of each cycle of signal A (Fig. 4, not shown) so that the system can be used to halt the head in either of two directions. As described in Specification 1,290,090, signal E is obtained by inverting, differentiating and commutation of signals A, B whereas signal F is obtained by commutation thereof before application to an externally controlled level control unit.
Patent GB-888879-A (GB)
Title: Improvements in or relating to the method of gamma compensation in neutron sensitiveionisation chambers
Inventor: GRAY ALAN LYLE
IPC: H01J47/12
Filed: 1958-10-31
Abstract: 888,879. lonization chambers. PLESSEY CO. Ltd. Oct. 28, 1959 [Oct. 31, 1958], No. 35013/58. Class 39(1) A gamma ray compensated neutron sensitive ionization chamber comprises three co-axial tapered tubular electrodes 1, 2 and 3 whose diameters are so chosen that the annular volumes 4 and 5 are equal when the assembly is first set up in the intended basic operative position, but which are adjusted by moving any of the electrodes 1, 2 or 3 along its axis so as to obtain a high value of compensation ratio. The chamber is then sealed. It is stated that the compensation ratio does not then vary substantially with varying gamma flux distribution. The outer annular volume 4 is made neutron sensitive by suitably coating the surfaces of electrodes 1 and 2. The electrode 2 is the collector electrode and is supported by pillars which are screened and insulated to reduce gamma collection.
Patent GB-1434555-A (GB)
Title: Thermoelectric generator
IPC: F23C99/00
Filed: 1973-07-23
Abstract: 1434555 Boiler in combination with direct heat/electricity conversion means GULF OIL CORP 23 July 1973 [6 Feb 1973] 35034/73 Heading F4A [Also in Division B1] A boiler assembly 50 produces a superheated vapour F which passes via pipes 118, 120 through a number of condenser loops 101 in heat exchange relationship with modules 122 for conversion of the heat of the vapour into electrical energy. Heat dissipating fins are provided for each module and the condensed vapour is returned to the boiler. As shown the boiler heat source is a catalytic burner 30 which directs gas into a mixing chamber 87 defined by porous walls 80, 82 the outer of which carries a catalyst to effect combustion in chamber 70. In other embodiments the burner may be a catalytic liquid fueled burner (Fig. 5, not shown) or a solid fuel burner (Fig. 4, not shown). Fig. 8 shows a reflux boiler in which a heater of any suitable type is placed in a chamber 255 to heat fluid in a surrounding annular chamber. Vapour passes to condensers 243 to heat converter modules 245 and condensed fluid is heated by the oppositely flowing vapour as it returns. A burner for this embodiment using the catalylic combustion of gas is disclosed (Fig. 9, not shown). All components of the burners are designed to be readily replaceable.
Patent GB-1242379-A (GB)
Title: Vehicle seat belt assembly
IPC: B60R22/03
Filed: 1970-07-20
Abstract: 1,242,379. Seat belt assembly. FORD MOTOR CO. Ltd. 20 July, 1970 [18 Aug., 1969], No. 35044/70. Heading A3V. A vehicle seat belt assembly comprising a belt attached to a spring-loaded wind-up reel, and a rigid arm which is linked to the wind-up reel so that on withdrawing the belt from the reel the arm is moved from an inoperative to an operative position in which it is engageable with the belt buckle. By this arrangement the rigid arm 28 is raised to an upright position when the belt 48 is withdrawn from the rigid sleeve 54 and falls to a horizontal position when the belt is wound into the sleeve by the force exerted by the coil spring (40) in Fig. 2 (not shown). This is achieved by having a wire 58 joined to an extension (44) of the windup reel (38), a similar wire 62 joined to an extension 32 of the rigid arm 28, and a spiral spring 60 linking the two wires, causing the rigid arm 28 to rotate about the pivot 24 when the wind-up reel (32) rotates to wind the wire 58 on the extension (44). Thus the belt 48 may be withdrawn from the sleeve 54 and the buckle 50 engaged with the end 30 by the use of one hand and the rigid arm 28 does not obstruct entry to the vehicle when in the inoperative position.
Patent GB-1143465-A (GB)
Title: Improvements in or relating to combine harvesters
IPC: A01F12/30
Filed: 1966-08-04
Abstract: 1,143,465. Threshing machines. TEXAS INDUSTRIES Inc. 4 Aug., 1966 [11 Aug., 1965], No. 35057/66. Heading A1F. The straw-rack of a threshing machine comprises a fixed resiliently-mounted sieve 8 over which the straw is pushed by reciprocating rake-bars 18 with pendant tines 20, which are caused periodically to protrude through slots 31 in a screen 29, itself reciprocated longitudinally by a crankdisc 36 and pitman 35. The sieve 8 has up-turned side edges and is tilted downwardly at the front towards the threshing cylinder, where it is spring-mounted. The grain which passes through the concave and the front part of the sieve 8 falls on to an endless band (Fig. 1, not shown) which feeds it to a grain-pan 5 whence it falls to winnowing sieves 6.
Patent GB-1210733-A (GB)
Title: Improvements in and relating to data exchange systems
IPC: H04Q3/545
Filed: 1968-07-23
Abstract: 1,210,733. Digital transmission systems. SIEMENS A.G. 23 July, 1968 [24 July, 1967], No. 35058/68. Heading H4P. In a digital transmission system comprising a programmed exchange, control signals, such as calling and clearing signals, which are normally duration significant are transmitted in binary code form which is not duration significant. Because the control signals are no longer duration significant they do not limit the lowest speed of a transparent information channel. During establishment of a connection the transparency of an information channel is limited to allow detection of uncoded control signals. Prior to fully transparent information transmission a preset binary control signal is sent to suspend the uncoded control signal detector either for a fixed time or for a time selected by the subscriber. At the end of this time either the connection is broken down or the system reverts to limited transparency. Each information channel may be permanently allotted a channel over which the coded control signals are sent, or a control channel may be allotted only to those information channels carrying fully transparent signals. A control channel may be shared among a group of information channels. Alternatively, a control channel may be allotted to the information channels of a group only when fully transparent transmission is required by a subscriber and then only for the duration of the transmission. When a control channel is shared each signal on it is accompanied by a signal indicating the relevant information channel. If desired, only certain of the control signals may be sent on the control channel, others being sent on the information channel.
Patent GB-656558-A (GB)
Title: Improvements in or relating to packing machines
IPC: B65B43/56
Filed: 1947-12-31
Abstract: 656,558. Packing. SKODA WORKS, NATIONAL CORPORATION. Dec. 31, 1947, No. 35066. Addition to 656,557. Patent of Addition applied for. [Class 94(i)] In a packing-machine according to the parent Specification the connection between each article carrier 12 and its supporting arm 11 is provided by a pivot 20, and another link 23 is provided which is pivotally connected on the one hand to the article carrier at a point 22 remote from the pivot 20 and on the other hand to the uniformly rotating disc 4, so that the carrier 12 is prevented from rotating about its own axis during the dwell periods. In the example, two carriers 12 are rigidly secured together and the link 23 is pivoted to a short arm 21 fastened to this unit, and to the disc 4 by a pivot 24.
Patent GB-1012379-A (GB)
Title: Improvements in or relating to motor vehicles
IPC: B62D31/00
Filed: 1964-08-27
Abstract: 1,012,379. Articulated vehicles; vehicle independent suspensions. ZWEIRAD-UNION A.G. Aug. 27, 1964 [Jan. 11, 1964], No. 35213. Addition to 1,003,094. Headings B7D and B7H. The front suspension assembly of a collapsible articulated vehicle with two chassis portions with their ends embracing a transverse tube and resiliently interconnected by rubber spring elements is mounted on a screwthreaded tube 18 extending longitudinally from a bracket 20 on the front chassis portion. The front suspension springs 3, 4 are secured to a hollow box 9 welded to nut 17 pivotally mounted on the tube 18 and tube 18 has a flange 19 by which it is held within bracket 20 and attached support plate 22 by bolts 26 passing through flange 19, bracket 20, spacers 25 and plate 22.
Patent GB-775452-A (GB)
Title: Improvements in or relating to electrical attenuators
IPC: H01P1/22
Filed: 1953-12-17
Abstract: 775,452. Attenuators. GENERAL ELECTRIC CO., Ltd., and HAYES, A. G. Dec. 14, 1954 [Dec. 17, 1953], No. 35222/53. Class 40 (8). A waveguide attenuator comprises a member 3 carrying a resistive layer the conductivity of which varies over its surface area in such a manner that good impedance matching is obtained. To obtain this result the conductivity is arranged to be a maximum at the centre of the plate 3 and to decrease towards the edges 8, 9. In order to vary the attenuation as the member 3 is moved into and out of the guide 10 the conductivity may be arranged to be a minimum along the edge 7 and to increase towards the opposite edge. The member 3 is made of mica or glass coated with a continuous film of resistive material such as nichrome or carbon. Alternatively, the resistive coating may consist of a mosaic of mutually-insulated areas of resistive material or a grid of resistive material as described in Specification 775,453. The required gradation of resistance is obtained by varying the size of the " holes " in the grid. The member 3 is movable in guides 4, 5 and may project from slots in one or both sides of the waveguide. Specifications 573,798 and 689,795, [both in Group XXXVI], also are referred to, and Specification 652,630, [Group XL (a)], in the Provisional Specification.
Patent GB-1516384-A (GB)
Title: Hydroponics plant pot with an inserted container for receiving a hydroponics fertiliser
IPC: A01G9/02
Filed: 1975-08-27
Abstract: 1516384 Plant pots BAYER AG 27 Aug 1975 [29 Aug 1974] 35335/75 Heading A1E A hydroponics plant pot 1 has an annular recess 3 in its base 2 for receiving a container 4 containing hydroponics fertilizer which has apertures 5 and/or slots 6 such that when the pot and container are placed in a surrounding water reservoir (not shown) the fertilizer enters the surrounding water and is conveyed into the pot 1 through slots 7. The recess has a depth of between 0.5 and 2.5 centimetres and an internal diameter of between 6 and 10 centimetres whilst the diameter of the apertures 5 and/or the width of the slots is less than or equal to 0.5 millimetres to prevent pellets of the fertilizers from being washed out. Conical sleeves may be arranged over the top of the recess 3 for the insertion of plant support sticks.