baber/WOPTO huggingface dataset:
Patent GB-679262-A (GB)
Title: Improvements in and relating to field rakes
IPC: A01D76/00
Filed: 1949-07-08
Abstract: 679,262. Hay rakes. DICKIE, J. July 7, 1950 [July 8, 1949], No. 18087/49. Class 6(iii) To facilitate the passage through field gates of a large-span vehicular hay rake, the end sections, extending beyond the ground wheels, are adapted to be folded to lie over the central section between the wheels. As shown, the lift shaft 17 carrying the tines 21 of the central section on fulcrum rods 20 has side extensions 28 carrying the tines 34 of the side sections, the extensions being mounted to hinge at x on radius arms 29 after releasing bolts 30 and removing the shaft 35 carrying the side stripper-arms 37. The tines of the central and side sections are carried by sleeves 20a 32 on their fulcrum shafts and behind each ground wheel 13 shorter spring-pressed tines 27 are supported from the lift shaft 17. The stripper arms 24 of the central section are fixed to extensions 23 of the vehicle frame 10 which carries the lift shaft 17 and the gearing and linkage for automatically raising the tines. Screw gear 15, Fig. 3, operated by handles 15d is provided between the frame 10 and the draft frame 14 to adjust the position of the tines relatively to the ground. Means for operating and controlling the raising and lowering of the tines operates as follows. The lift shaft 17 is journalled in brackets depending from the central frame 10 and is turned for lifting by a centrally-disposed arm 45 connected by link 44 and arm 43 to the shaft 40 of a single central ratchet wheel 39 driven by chain gear 38 from the wheel axle 12. A pivoted catch 52 engages a frame 41 loose on shaft 40 to hold the tines 27 are supported from the lift shaft 3, and a pivoted catch 55 engages projection 63 on arm 43 to hold the tines in the raised dotted-line position. The frame 41 carries a pawl 42, Fig. 5, which by operating a remote control cable 49a is permitted to engage the ratchet wheel to raise the tines. This cable through lever 49 rotates shaft 48 to release catch 52 through rod 51, pawl 42 being then released from a stop 46 to engage the ratchet wheel 39. The frame 41 then moves with shaft 40 to operate arm 43 to lift the tines until pawl 42 is released by a fixed finger 64 when the tines fall by gravity to operative position. The tines are released in the raised position by a cable 61 which through lever 59 and pawl 60 rotates a ratchet wheel 57 a cam 56 on which raises the catch 55.
Patent GB-782219-A (GB)
Title: Apparatus for controlling the color of an arc light
IPC: G03B21/20
Filed: 1955-06-22
Abstract: 782,219. Automatic control systems for arc lamps. VITARAMA CORPORATION. June 22, 1955 [July 21, 1954], No. 18123/55. Class 38 (4). [Also in Group XL (a)] In a system for automatically controlling the colour of light from an arc lamp, particularly when the latter is one of several used in the projection of a motion picture mosaic, feed of colour modifying material to the are is controlled in response to the colour of the light. In Fig. 1 a consumable carbon electrode 11 of a motion picture projector are lamp is automatically fed by an electric motor 17 controlled in dependence on are current in known manner. Light from the are 14 passes to the film 34. through a two-blade projector shutter 32 which also reflects some of the light back to hooded light-sensitive electric cells 40, 41, 42, 43. The outputs of cells 40, 41, 43 which are made sensitive to red, yellow and blue light respectively 'by filters 45, 46, 47, are each compared with a portion of the output of cell 42, sensitive to white light, and any difference, indicating a fall in the proportion of coloured light is applied through an amplifier, 56, 66 or 76 to run a twophase motor 51, 61 or 71 feeding consumable colour-modifying strip 52, 62 or 72 to the are. Motors 51, 61, 71 may be operated reversibly may feed the colour-modifying strips through a longitudinal passage in one of the electrodes, or may regulate pumps or valves controlling the supply of colour-modifying gases to the arc.
Patent GB-828900-A (GB)
Title: Improvements relating to rail vehicles
IPC: B61C9/12
Filed: 1955-06-23
Abstract: 828,900. Rail vehicle undercarriages. SENTINEL (SHREWSBURY) Ltd., and IND, W. G. Aug. 22, 1956 [June 23, 1955], No. 18154/55. Class 103(6) A rail vehicle has at least one axle 9 driven from a source of power such as a steam engine, diesel engine, or electric motor, via a universal joint 2, a shaft 3, and gears in a box 5 carried on the axle 9, each axle box 10 being vertically movable, through horns 11 engaging guides 12, against the action of a leaf spring 14. The invention is characterized in that the gear box 5 is provided with pairs of vertical surfaces formed on rectangular blocks 17 rotatable on lateral pins 16 and slidably engaging pairs of vertical surfaces formed in channel section castings 19 secured to a cross member 18 on the vehicle frame sides 1. The surfaces are disposed transversely of the vehicle frame and provide reaction to the driving torque on the axle 9.
Patent GB-847650-A (GB)
Title: Improvements in or relating to tumbling apparatus
Inventor: SMITH-GORMAN ROBERT JACK
IPC: B24B31/03
Filed: 1956-06-12
Abstract: 847,650. Screening apparatus. ROLLSROYCE Ltd. June 7, 1957 [Jan. 12, 1956; Dec. 31, 1956], Nos. 18192/56 and 39719/56. Class 117 [Also in Group XXIII] Tumbling apparatus, Fig. 1 (Provisional Specification 18192/56) comprises two stacks of rotatable tubes 11 through which metal articles, together with chips of granite or other suitable material, pass in succession, being transferred from the first stack to the second by an elevator 12. The articles are then transferred by a second elevator 12 to a screening unit 13 for separation of the chips and articles. The screening unit, Fig. 3 (Provisional Specification 18192/56), comprises four screening tubes 17 formed from mild steel wire mesh coated with rubber or other abrasive-resistant material, a helical thread being bonded to the inside of the tubes. Material passes from one tube to the next through fixed shoots 20. Other shoots convey material passing through the screens to elevators 18, 19. Separation is assisted by vibrating the tubes by an electromagnetic A.C. contactless vibrator 21. In a modification, Fig. 6 (Provisional Specification 18192/56), the screening tubes 17 are formed from cylinders lined internally with abrasive-resistant material, a coarse thread being formed on the radiially inner surface of the lining and the screening apertures being provided in the base of the helical channel of the thread. In a further modification, Fig. 4 (Provisional Specification 39719/56), the screening tube comprises a rubber-lined slotted tube 117c within a rubber-lined slotted tube 117d. The width of the screening aperture is varied by relative rotational adjustment of the tubes. The inner tube may be provided with baffles.
Patent GB-146345-A (GB)
Title: Cushion tyres
IPC: B60C7/12
Filed: 1920-07-02
Abstract: 146,345. Goodyear Tire & Rubber Co., (Assignees of Hale, J. E.). Feb. 12, 1916, [Convention date]. Non-metallic elastic bodies and cores. - A cushion tyre comprises a tread-portion 16 with parallel sides 24 connected to base-portions 17, 18 by side walls 19, 20 each having oppositely-curved faces 25, 26 as shown. The aperture 22 is closed by a security-ring 29 fitted between the base portions which are compressed by the rim flanges 12, 13 in assemblage.
Patent GB-479195-A (GB)
Title: Manufacture of derivatives of paraffin wax
IPC: C10G73/38
Filed: 1936-07-01
Abstract: Unsaturated derivatives of paraffin wax obtained by treating chlorinated paraffin wax with alkalis, e.g. aqueous or alcoholic potash, are chlorinated.  Preferably, the chlorinated wax contains not less than about 25 per cent by weight of chlorine and is treated with excess of alcoholic alkali under pressure.  The unsaturated product may be molecularly distilled before chlorinating.  The further chlorination is preferably effected in the absence of a solvent and with heating, at least in the final stages, e.g. to 80--90 DEG  C.  The products vary from viscous liquids to resins which can be mixed with other resins and plasticized. In examples: (1) a chlorinated wax of 46 per cent chlorine content is treated with methyl alcoholic KOH under pressure.  The product is treated with chlorine, the temperature rising to about 45 DEG  C. and a viscous liquid containing 43 per cent chlorine being obtained.  Further chlorination at 85 DEG  C. gives, after removal of free chlorine and hydrogen chloride by air-blowing, a hard resin containing 52 per cent chlorine, melting below 100 DEG  C., and soluble in benzene, toluene, chloroform, and like solvents; (2) a paraffin wax fraction melting at 130 DEG  F. is chlorinated to 20 per cent chlorine content, treated with alcoholic KOH under pressure, and the product distilled under high vacuum.  It is chlorinated at 75--80 DEG  C. and freed from Cl2 and HCl by blowing with N2 at 80 DEG  C. to give a transparent resin softening at 30--35 DEG  C.  A sample has been furnished under Sect. 2 (5) of a product containing 52 per cent of chlorine obtained by heating a chlorinated shale wax containing 38,9 per cent chlorine with aqueous caustic soda in an autoclave at 210 DEG  C., treating with water and conc. HCl, separating the nonaqueous layer which is an unsaturated oil containing 30,6 per cent chlorine, and chlorinating first in the cold and then at 80--90 DEG  C.  Specifications 452,660 and 452,661 are referred to.
Patent GB-564031-A (GB)
Title: Improvements in gas analyzers
IPC: G01N27/16
Filed: 1942-12-24
Abstract: 564,031. Electric controlling and indicating systems. BAILEY METERS & CONTROLS, Ltd. Dec. 24, 1942, No. 18323. Convention date, Jan. 1, 1942. [Class 40 (i)] [Also in Groups III and XXIX] In a gas analyzer for continuously determining the percentage of free oxygen in a gas mixture of the kind wherein a gas sample and liquid fuel are supplied at substantially uniform rates, the fuel vaporized, mixed with the gas, and the mixture passed to a catalytic combustion device forming part of indicating or recording means, a fuel vaporizer and a mixing chamber are provided within a heat conducting body, a capillary feed for liquid fuel to the vaporizer is provided, and means for heating the body and the fuel fed to substantially constant temperature. The catalytic wire 32 forms part of a Wheatstone bridge 39 supplied with alternating current ; the wire being heated to 700-800‹ F. The output is put through a two-stage amplifier, such as a double triode resistance-coupled device 43 controlling valves 44, 45 in the output circuits of which are transformers 46, 47 controlling the direction of rotation of a motor 41. If the oxygen content of the gas varies, the resistance of the bridge leg containing the wire 32 alters causing rotation of the motor. A variable index 36 records the changes on a chart 37, while a contact arm moves along the balancing resistance 40 to restore the bridge balance.
Patent GB-574482-A (GB)
Title: Polymerisation of vinyl chloride
IPC: C08F14/06
Filed: 1942-12-24
Abstract: The process described in the parent Specification is modified by using in place of the water-soluble compound capable of taking up molecular oxygen a water-soluble thiosulphate, e.g. sodium, potassium or ammonium thiosulphate.  The aqueous medium may be weakly acid or weakly alkaline.  Air in the reaction vessel may be replaced by nitrogen.
Patent GB-626420-A (GB)
Title: Frequency modulation detector
IPC: H03K9/06
Filed: 1947-07-10
Abstract: 626,420. Supply systems for consuming devices. BENDIX AVIATION CORPORATION. July 10, 1947, No. 18350. Convention date, Aug. 23, 1946. [Class 38 (iv)] [Also in Group XL (c)] A source of steady direct voltage is provided by a resistor 32 connected in the cathode lead of a valve 29 which has its anode connected to a positive voltage point +B, and its grid to a tapping between resistors 36, 38 connecting +B to earth. The voltage thus applied across the condensers 24, 26 of a frequency discriminator is that of a D.C. source of low internal resistance.
Patent GB-711585-A (GB)
Title: A new or improved manifold recording appliance
Inventor: GILBERT ALFRED
IPC: B41L1/22
Filed: 1952-07-21
Abstract: 711,585. Manifolding; book-keeping. GILBERT & SONS, Ltd., A. June 18, 1953 [July 21, 1952], No. 18381/52. Class 16 A manifold record book, for use in rent or. savings collection transactions or the like, comprises a series of record sheets secured within a foldable protective cover, each sheet having a carbonized rear surface and being provided with registration abutments along or adjoining two adjacent edges so that a record card may be inserted below one of the carbonized sheets and registered therewith by means of the abutments. A cover 1 has secured therein, by stitching or otherwise, a series of superposed double leaves 2 having on at least one side a substantially rectangular second sheet 5 carbonized on the side next the leaf forming with the leaf, a pocket to receive a record card 6. Preferably each leaf has a sheet 5 on both sides and the leaf acts as a support for the sheets and prevents offsetting on to the rear of a record card. As shown in Fig. 7, a blank 7, carbonized on one side, is doubled round a leaf 2 and secured at each end by adhesive strips 12. The leaves 2 and blanks 7 are superposed and secured along the lines 3, 9 to the cover 1. The joining strips 12 and fold line 8 act as abutments against which the record card, 6 is registered for manifolding. The blank 7 has a cut-out 10 extending to the opposite edge along the stitch line 9 and a V- cut-out 11 at the other end of line 9 to facilitate entry of the record card, and folding of the book, as shown in Fig. 1. In a modification (not shown) the blank is twice the length of the leaf 2 and the ends are folded in and secured to the adjacent edge by strips 12, a V-cut-out being provided on the central stitch line. As shown in Fig. 11, two blanks are used for each leaf, the blank being doubled over the end of the leaf 2 which has a tab 18 extending through a slot in fold to position it and the securing strip 12 is attached in an inset portion 19. In a modification (not shown) the strip 12 is not inset and the tab 18 is secured to the sheet blank by adhesive or the like. The folds and locking strips 12 in all embodiments may be arranged for left-hand insertion of the record card 6 instead of right-hand as shown. A carbonized cash collecting or like sheet may be placed over the record sheet 5 and card 6 if desired and the book and collecting sheet may be held in a holder during manifolding. Where the leaves 2 merely serve as separators, as in Figs. 1 and 7, they may be omitted, the record card then being of sufficient thickness to prevent duplication on the rear.
Patent GB-736016-A (GB)
Title: Improvements in saturable core reactance devices
Inventor: PEARCE KENNETH MAXWELL
IPC: H03F9/02
Filed: 1952-07-21
Abstract: 736,016. Magnetic amplifiers. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. April 23, 1953 [July 21, 1952], No. 18386/52. Class 40 (4). The load windings of a transductor constitute two opposite arms of a bridge circuit which gives a resultant output through the balance arm when a D.C. signal is applied to the control windings. Two transductor cores 1, 2 are provided, each having a control winding 15, 16 and load windings 3, 9 and 4, 10 which are energized from an A.C. source 5, 6, windings 3, 4 and 9, 10 being connected in series to comprise two opposite bridge arms. The other arms are constituted by reactor windings 7, 11 which have a common magnetic core 8, and the balance arm comprises a rectifier 12 and D.C. output terminals 13, 14. The transductor cores 1, 2 may form the outer limbs of a common three-limbed core which has a single control winding on the centre limb. Adjustment of the bridge balance for zero signal input may be effected by the use of tappings on the various windings, by the use of series resistances, or by the provision of air gaps in the cores.
Patent GB-807760-A (GB)
Title: Improvements in or relating to power presses
IPC: B30B1/14
Filed: 1955-06-24
Abstract: 807,760. Mechanical presses. GOLDING, W. F. June 22, 1956 [June 24, 1955], No. 18401/55. Class 87(2). The movable platen 6 of a power press with a fixed platen 3, Fig. 1, is reciprocated by at least two operating shafts 53, 103 connected to the movable platen by cranks and toggle linkages 59, 109 and geared together by gear wheels 66, 116, the operating shafts being each driven from a shaft through individual slippermitting drive means. The drive between the shaft 7, Fig. 3, and the shaft 53 includes a clutch 20 comprising a driving member 21 splined to the shaft 7 and axially movable thereon and a driven member 23 journalled on the shaft 7, 21 and 23 having inter-engaging teeth 22, 24 so shaped, Fig. 4, that the teeth of the driving member tend to ride up on those of the driven member but are kept in engagement by a spring 26. The pressure of the spring is adjustable by a nut 29 which has teeth 32 meshing with a gear wheel 33 which can be turned by a shaft 34 formed with a square end 35. As the nut 29 moves along the shaft 7 the gears 32, 33 are kept in engagement by shroud plates 36 which cover the meshing teeth and in consequence of which the shaft 34 also moves axially, enabling annular indicia 37 on the shaft 34 to indicate the amount of adjustment. A latch 39 engages serrations 38 on the shaft to lock it in position. The slip-permitting drive between the shafts 7 and 103 is of similar construction with similar adjustment means. The toggle linkage 59 is operated from the shaft 53 by connecting rods 58 between crank pins 56 and pivot pins 64 and in Fig. 1 is shown in the straightened position where it has raised the front of the platen 6 to the limit of its height. The toggle linkage. 109, operated from the shaft 103 to raise the rear of the platen, is of similar construction. The press is driven through a wheel 12 which normally is electromagnetically connected to a driven wheel 13 on the shaft 7. Worms 51, 101 freely journalled on the shaft 7 drive the gear wheels 53, 103 which being in mesh, do not allow the platen 6 to tilt under uneven loading. Overload at either end of the press causes overriding of the teeth of the clutch 20 and the corresponding clutch 70 against their respective springs and these axial movements operate levers 46, 96 which trip switches 49, 99 before the teeth are completely out of engagement. The switches are connected in series and the tripping of either therefore breaks the electromagnetic connection between the wheels 12, 13 and makes electromagnetic connection between the wheel 13 and a brake member 14.
Patent GB-630464-A (GB)
Title: Polarized light ultraviolet comparision photometers
IPC: G01J1/36
Filed: 1947-07-11
Abstract: 630,464. Photometric apparatus. AMERICAN CYANAMID CO. July 11, 1947, No. 18551. Convention date, Aug. 1, 1946. [Class 97 (i)] An ultra - violet photometric apparatus using polarisation photometry to compare the intensities of two ultra-violet beams comprises a. Wollaston prism and a rotatable polarising prism both constructed of ammonium dihydrogen phosphate crystals. To prevent action of moisture the prisms are preferably coated with a transparent insoluble material, e.g. fluorides, silver chloride, or silica. Fig. 1 shows a Flicher spectrophotometer comprising an ultra-violet spectrometer consisting of prisms 5, 10, a source 1 of ultraviolet light and a mirror 7 and knife edge 8 movable together transversely of the beam to vary the wavelength of the light emerging from a slit 12, the lenses and prisms being of quartz or other ultra-violet transmitting material. The light from the slit 12 passes to a Nicol prism 16 of ammonium dihydrogen phosphate and is plane polarised thereby and thence passes to a Wollaston prism 21 also of this material which divides the beam into two beams plane polarised at right-angles which beams then pass through a Rochon prism 22 and a retardation plate 14 continuously rotated by an electric motor 24 to cause the two beams to flicker from maximum to minimum in opposite phase. The beams then pass through the samples 30, 31 to be compared and then to reflecting surfaces 28, 29 in an integrating sphere 33. Light from the sphere passes to a photocell 32 linked to an amplifier 34. If the two beams differ in intensity a pulsating current reaches the amplifier 34 and is fed therefrom to a motor 18 which rotates the prism 16 until the beams are of equal intensity, the angle of rotation of the prism 16 giving a measure of the difference in the beams. To compare reflectances the samples 30, 31 are removed and the surfaces to be compared are placed at 28 and 29. In a modification the prism 22 is stationary and a half-wave plate is rotated to produce flickerings, and the integrating sphere may be replaced by two slits through which the beams pass after traversing the samples and are concentrated by a lens on to a single slit behind which is the photo cell. Two beams 44, 45, Fig. 4, may be visually compared by allowing them to fall on a Wollaston prism 48 of the phosphate crystal and a screen 49 is arranged to pass the ordinary ray of one beam and the extraordinary ray of the other beam to a rotatable Rochon prism 50 whence they are directed on to fluorescent screens 57, 58 and into an eye-piece 59 by a lens 55 and prisms 56. The prism 50 is rotated until the screens fluoresce at equal intensity, the rotation of the prism 50 indicating the relative intensities of the beams.
Patent GB-1180478-A (GB)
Title: Improvements in or relating to Sanitary Disposal Units
Inventor: KENNON STANLEY OSTLE
IPC: A61L2/26
Filed: 1967-04-21
Abstract: 1,180,478. Sanitary disposal units. CANNON HYGIENIC PRODUCTS Ltd. 16 April, 1968 [21 April, 1967], No. 18560/67. Heading A4A. A disposable sanitary disposal unit comprises a water-tight receptacle 1 for the reception of waste material, an inlet into and means for closing the receptacle comprising an open-ended sleeve 6 depending within the receptacle and which has co-axially and slideably located within it a sleeve-like liner 7 open at its lower end 8 and closed at its upper end by a plate 9 which closes the receptacle when the liner is in its lowermost position and having an aperture 11 so that when the liner is raised the waste material may be inserted through the aperture, and means for introducing a germicidal or similar product into the receptacle. Said means may comprise a flexible bag 13 containing the germicidal or other product 14 suspended in the receptacle by a cord 15 ending in a loop 17 outside the receptacle, a pull on the loop 17 severing the neck 16 of the bag. Further means for introducing a germicidal product comprises an inverted flexible bottle 17, which also acts as a handle for the liner 7, pressure on the bottle ejecting fluid from a nozzle 22 or tube (not shown), the tube being positioned with respect to the aperture 11 so that the introduction of waste material pushing the tube allows liquid to flow from the bottle into the receptacle.