baber/WOPTO huggingface dataset:
Patent GB-348263-A (GB)
Title: Improved manually driven machine for cutting grass, hay and other field crops
IPC: A01D34/02
Filed: 1930-03-03
Abstract: 348,263. Mowing &c. machines. WADE, E. W., The Manor, Church Road, New Thundersley, Essex. March 3, 1930, Nos. 7005 and 39301. [Class 6 (iii).] A manual machine for cutting grass, hay, and other field crops comprises two side members 1, 2, each consisting of a substantially rectangular framework furnished adjacent its front end with a vertical slot in which a stub axle 4 carrying a front wheel 5 may be vertically adjusted. Another road wheel 6 is carried by a stub axle at the rear of each framework. Detachably secured to an horizontal flange 7 attached to or integral with each side member is a spacing plate 8 that carries a fixed cutting blade 9 at its forward end. Plates 8 of different widths with corresponding sets of knives may be used according to the width of swath it is desired to cut, the side-plates being moved outwards to suit the plate 8. The plate may be attached to the underside of the flange 8 should a machine be desired that cuts close to the ground. The movable blade 10 is guided on the blade 9 by slots 11 and pins 12 and is actuated by a lever 13, bell-crank lever 18 and sliding bar 22 reciprocated by a lever 24 provided with a pin 27 engaging in a cam groove 28 in a part 29 carried by the road wheel 6. A plate covers the inner surface of the wheel and the cam groove. Ball races may be interposed between the two blades and springs provided to regulate the pressure between the knives. A cover-plate 31 is arranged over the levers 13, 18, and a shield, which may be locked in position, may be provided for covering the knives when the machine is not in use. Guards 37 are also fitted to cover the road wheels. In a modification motion is derived from a crank pin on a pinion driven from the road wheel. The machine is provided with a handle comprising side-pieces 33, that may be angularly adjustable, and two pieces 35, 36, arranged to telescope into the side-pieces and into each other to permit vertical and lateral adjustment.
Patent GB-1037692-A (GB)
Title: Packaging machine
IPC: B65B11/10
Filed: 1963-02-21
Abstract: 1,037,692. Packaging machine. MEAD CORPORATION. Feb. 21, 1963 [March 1, 1962], No. 7049/63. Heading B8C. A mechanism for tightening a wrap-around blank about a group of articles, the blank consisting of panels for covering the top and sides of the group and overlapping beneath it, comprises a tightening element for entering an aperture in one overlapping panel and drawing it towards the other, the element being controlled by a pair of spaced movable support elements interconnected with it and a thrust linkage connected with each of the support elements, each of said linkages being arranged to impart movement to its associated support element which is in a different direction to the direction of movement imparted to the other support element, whereby controlled resultant movement is imparted to the tightening element. As described, the elements are duplicated, drawing each overlapping panel towards the other. Carton blanks, Fig. 2, are deposited intermittently from a hopper on to the top of the articles to be packaged, said articles being fed intermittently along a conveyer, the sides of the blank being folded down and the panels D, E being folded under as described in Specification 1,037,691. The apertures H in the lap panels D, E are engaged by the tightening elements 32 each longitudinally adjustable on a crosshead 59 and are controlled by support elements 33, 34 which are connected as shown in Fig. 6 to cranks 45, 55 pivoted about a fixed pivot 46 by cams 48 and 56 on a shaft 31 driven by a motor through a drive shaft of the type to accommodate longitudinal adjustment. The element 33 imparts left to right movement and the element 34 imparts vertical movement, the amount of movement being adjustable by slotted connections 43, 44, 53, 54. The mechanism is in duplicate, one for each pair of elements 32 and the two mechanisms are adjustable towards and away from each other for different package sizes. The mechanism for effecting a locking of the tabs F into the openings G comprises a bar 60 with locking fingers 60 which engage the tabs F 1 , F 2  and F 3  and drive these tabs through the apertures defined by tabs G 1 , G 2  and G 3 . The bar 60 is connected to an arm 64 which is operated by links 66, 68, 74 from a cam 80 on a shaft 81 which also carries tightening element cams 82, 83.
Patent GB-398489-A (GB)
Title: Improvements in and relating to doors
IPC: E06B3/70
Filed: 1932-03-09
Abstract: 398,489. Fire-resisting sliding-doors. BOOTH, J., BOOTH, T., BOOTH, C. H., Hulton Steelworks, Bolton, and MORRIS, J. H., Shanklin, Channing Road, Lytham-St. Annes, Lancashire. March 9, 1932, No. 7108. [Class 20 (iii).] Doors for factories, warehouses, and the like, and particularly fireproof doors, comprise pivotally connected slats 1 held in a rigid frame composed of channels or the like 2 connected by corner gussets 3. The ends of the slats may have smoke stops and buckling is prevented by projections 7 on the frame and hooks 6 on the door at the hinged edge and triple-point fastening on the opposite edge with the top and bottom frame members and middle of the adjacent door or frame. On sliding doors, a flange on the forward edge engages in a recess in the frame and, at the rear, a double-bent member engages an angle-member in the frame to prevent buckling when closed. The hangers for sliding doors comprise ball-bearing flanged rollers 14 engaging tracks 15 supported on plates 18 and upper and lower guiding flanges 21, 20 engage recesses in the frame.
Patent GB-1124881-A (GB)
Title: Improvements relating to control circuit arrangements
Inventor: PHILLIPS PETER JOHN STANTON
IPC: G05D23/24
Filed: 1966-02-18
Abstract: 1,124,881. Unijunction switching circuits. GRAVINER (COLNBROOK) Ltd. 7 Feb., 1967 [18 Feb., 1966], No. 7139/66. Heading H3T. [Also in Division G3]. A unijunction transistor has its base circuit energized by a regularly varying voltage having a D.C. component, and its emitter supplied with an adjustable proportion of such voltage, a capacitor being connected to the emitter to determine the instant at which the unijunction fires in relation to the waveform of the regularly varying voltage. As applied to the temperature control of a furnace (Fig. 1), the unijunction operating voltage across AB consists of unsmoothed rectified A.C. applied through R2 and D2 together with smoothed D.C. through D1, R1 and RV1, this being smoothed by a Zener diode SZ1. The emitter is returned to a potential divider R, P across AB to receive an adjustable fraction of this voltage. The resistor P comprises a thermistor to sense the furnace temperature and variations in this alter the firing voltage of the unijunction. During the rising part of the waveform AB the base and critical voltages of the unijunction increase together and it does not fire. When the waveform starts to fall, however, capacitor C1 holds the emitter voltage at its peak value and at some point (dependent on the value of P) the unijunction fires and discharges Cl. A current pulse is then applied to the gate of a thyristor SCR causing it to conduct and allow current to flow through the furnace heater winding 9 (which may be on the A.C. side as shown dotted). The value of P determines the point in the A.C. waveform when the unijunction fires and hence the conduction angle of the thyristor. If the resistance of P becomes large the unijunction may fire twice during a half-cycle of the A.C. but the second pulse will have no effect on the already conducting thyristor. Resistor R sets the desired temperature of the furnace; RV1 adjusts the sensitivity by varying the amount of ripple on the D.C. at AB and hence altering the rate of change of the critical voltage for a given value of P. In a modification (Fig. 6, not shown) two thyristors are used, connected in reverse parallel across the A.C. side of the bridge rectifier 6 to pass current through the heater winding during both half-cycles of the supply. Pulses are supplied in phase to the thyristors from transformer windings energized by the unijunction, although only one thyristor conducts at a time. Warning lamps are connected across the thyristors and the heater winding to indicate when power is being supplied to the heater. Time-varying illumination of these lamps indicates that the sensitivity control RV1 is incorrectly set. The above system can be used to control variables other than temperature by suitably modifying the components P and 9.
Patent GB-330012-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D7/01
Filed: 1929-03-05
Abstract: 330,012. Smith, G. A., (trading as Smith Co., G. A.), and Williams, F. W. March 5, 1929. Cutting slices in succession. - In a slicing- machine, the slice thickness adjustments are effected by a knob h on a spindle f carrying a pinion or toothed segment i which is locked by engaging a fixed stop or pinion j. The pinion i is disengaged for slice thickness regulation by pushing in the knob h against the action of the spring e. The indicating pointer b, c is secured to the knob h and works over a graduated scale d secured to the carriage k. The arm m on the pinion i is connected by a link to the feed ratchet shroud. The pinion is fixed in an adjusted position. The pinions i, may be formed as cone wheels.
Patent GB-1379364-A (GB)
Title: Mounting device for a radiating highfrequency line
IPC: B61L3/22
Filed: 1973-02-14
Abstract: 1379364 Aerials KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE AG 14 Feb 1973 [1 March 1972] 7264/73 Heading H4A [Also in Division H2] A mounting device for a radiating H.F. line 4 comprises a synthetic resin hood 5 which covers the line over its whole length. Said hood is open at one end, and is shaped at the other end to receive and hold the H.F. line. A base 6 is engageable with the open end of the hood 5. As described, the H.F. line 4 is a co-axial cable with inner conductor 8, dielectric 9, and longitudinally slotted outer conductor 10. It is supported above the sleepers of a railway track, to which the bases 6 are secured. The hood 5 is made of a thermoplastic material, such as polyethylene. Its line receiving portion is provided with locating means which co-operate with similar means of the cable 4, so that the radiating slot is correctly orientated. Recesses 11, 12 in the base 6, which may also be made of thermoplastic material, receive the hood 5 at its open end. Tongues 14 may be provided in the bases 6 for holding an auxiliary conductor 13. In order to facilitate transport and the laying of the hood, it may be temporarily wound on a drum.
Patent GB-249524-A (GB)
Title: Improvements in electric transformers
IPC: H01F27/14
Filed: 1926-03-16
Abstract: 249,524. Cooper, A. B. March 21, 1925, [Convention date]. Transformers. - To prevent access of water to an underground transformer tank, the tank 1 is provided with an open bottomed cover 3 bolted to brackets 5 and extending sufficiently below any joints. inlets, &c. provided in the upper part of the tank to ensure that water will be prevented by air trapped in the cover from rising to a level at which it may leak into the tank.
Patent GB-1087472-A (GB)
Title: New amides
Inventor: THUILLIER JEAN-EUGENE
IPC: C07C233/00
Filed: 1965-02-19
Abstract: The invention comprises compounds of formula <FORM:1087472/C2/1> wherein R is a hydrogen atom or a methyl group, Y is a hydrogen atom or a methyl group, and X is a p-chlorophenoxy, o-methyl-p-chlorophenoxy, 1 - naphthyl, 2 - naphthoxy, 3-indolyl or b -(3-indolyl) ethyl radical, with the proviso that when X is a p-chlorophenoxy or p-methoxyphenoxy group Y is a methyl group, and their preparation by reaction of the appropriate acid or acid halide with the appropriate amine.  The compounds of the invention act on the central nervous system and may be used in pharmaceutical compositions in combination with a carrier, for example in forms suitable for oral administration, such as tablets.
Patent GB-979272-A (GB)
Title: Polyurethane coating compositions
Inventor: WILLIAMSON WILLIAM IAN
IPC: C09D175/04
Filed: 1962-02-26
Abstract: Pigmented polyurethane coating compositions by initially mixing a pigment with a compound containing at least one isocyanate group directly attached to a phosphorus atom and then blending the mixture with an isocyanate group containing urethane prepolymer. Phosphorus triisocyanate and phosphoryl triisocyanate are specified as the compound containing at least one isocyanate group and may be used in amount to provide 0.9 to 2.0 NCO groups per mole of H2O in the pigment.  The mixing of the two compounds may be by milling with a solvent e.g. esters and ketones, aromatic solvents and 2 ethoxy ethyl acetate.  Pigments specified: titanium dioxide, iron oxides, chromes, carbon black and organic pigments e.g. phthalocyanines and azo compounds. The isocyanate group-containing urethane prepolymer is prepared in the usual way, and is incorporated into the treated pigment by slurry grinding. The composition may be applied to metals, wood, concrete, asbestos, paper, plastics, rubber, glass and fabrics. In Examples (1) Phosphoryl triisocyanate was milled with titanium dioxide, 2 ethoxyethyl acetate, xylene and water and then mixed with the prepolymer obtained from polypropylene glycol, butylene glycol, trimethylol propane and toluylene diisocyanate (2) P(NCO)3 in butyl acetate was added to TiO2 and 2 ethoxyethyl acetate and mixed with prepolymer (3) pigments: carbon black, iron oxide, phthalocyanine blue, toluidene red and Hansa yellow were mixed with PO(NCO)3 and added to a prepolymer derived from adipic acid, ethylene glycol propylene glycol and toluylene diisocyanate.ALSO:Pigmented polymethane coating compositions are prepared by initially mixing a pigment with a compound containing at least one free isocyanate group directly attached to a phosphorus atom and then blending the mixture with an isocyanate group containing urethane prepolymer.  The composition may be applied to: wood metals, concrete, asbestos, paper, plastics, rubber, glass and fabrics by brushing, spraying or dipping.  Pigments specified: titanium oxide iron oxides, chromes, carbon black and organic pigments, e.g. phthalocyanines, azo compounds Hansa yellow or Toluidene red.  Solvents, e.g. esters, ketones, aromatic solvents and 2-ethoxyethyl acetate may be used.
Patent GB-1028542-A (GB)
Title: Disc harrow or like tractor implement
IPC: A01B21/08
Filed: 1963-02-25
Abstract: 1,028,542. Agricultural implements. INTERNATIONAL HARVESTER CO. Feb. 25, 1963 [March 2, 1962], No. 7433/63. Heading A1B. A disc harrow comprises two gangs of discs 1 mounted on frames 4, 5 which are pivoted together by means of a pin 6, each frame being provided with an arcuate element 4b, 5b which may be held in adjusted position by pins 13 to vary the angular position of the gangs. The pin 6 is provided in a frame 7 which is transversely adjustable on a frame 8a, 9a which is pivotally attachable to means 10 for attaching the implement to a tractor three point linkage. To adjust the working depth of the discs an adjustable link 14 is provided.
Patent GB-237530-A (GB)
Title: Improvements relating to lamps for road vehicles
IPC: B60Q1/14
Filed: 1925-03-19
Abstract: 237,530. Wish, W. E. March 19, 1925. Vehicle lamps; lantern doors. - In a vehicle, lamp adapted to project light laterally from one or more auxiliary lamp bulbs i, as well as forwardly from the main lamp bulb c when required, the lamp casing is adapted to be turned about an axis passing longitudinally through it so as to enable the laterallydirected beam to be tilted up and down. The lamp casing may be turned by a handle g or by a lever and Bowden-wire apparatus. The rear end of the casing may be provided with a detachable screwed cap or an opaque hinged flap l so that light from the rear lamp bulb can be obtained when desired. The front of the casing may be provided with a hinged or screwed cap n carrying the lens or front glass, one of the electric lamps projecting beyond the joint between the cap and the casing. The main lamp bulb c or auxiliary lamp bulbs : i or both may be switched on by the movement of a single switch arm. In one form, the lamp casing is provided with a lateral panel or panels h of glass, celluloid, mica, &c. A reflecting cross partition i may be arranged between the lamp bulbs i and the inside of the casing opposite the panels may be formed as, or provided with, a reflector. In a modification, a lamp for motor cycles is provided with transparent panels on both sides and with a longitudinal reflecting partition in the plane of a single bulb i. In a second modification, a single panel extends across the bottom half of the casing.
Patent GB-609280-A (GB)
Title: Improvements relating to the attachment of floats and weights to fishing tackle
IPC: A01K95/00
Filed: 1946-03-11
Abstract: 609,280. Angling. STANNERS, A. E. March 11, 1946, No. 7514. [Class 48] A float or weight 10 for fishing tackle is provided with a line-engaging device comprising a bridge 13 having its legs 12 bent into loops 14 as shown and then secured to the float or weight, the two legs 12 being situated in the space existing between the loops 14. When used in connection with a float the line-engaging device may be used with a secondary element 20 to anchor the line.
Patent GB-1357006-A (GB)
Title: Sealing strips
IPC: B60J10/08
Filed: 1971-03-20
Abstract: 1357006 Sealing strips DUNLOP Ltd 9 March 1972 [20 March 1971] 7537/71 Heading E1J A sealing strip comprises a mounting portion 1 of U-section and a tubular sealing portion 5 detachably connected by hook-shaped interlocking means. The mounting portion 1 is of plastics, e.g. PVC, and the sealing portion 5 of synthetic rubber.
Patent GB-1049232-A (GB)
Title: A pelletizer for plastics material
IPC: B29B9/06
Filed: 1964-02-24
Abstract: 1,049,232. Pelletizing plastics material. BLACK-CLAWSON CO. Feb. 24, 1964 [Feb. 27, 1963], No. 7571/64. Heading B5A. A pelletizer for plastics material comprises an extrusion head 10 containing a hub 65 carrying severing knives 70 rotatable adjacent the outer face of an annular die plate 25 supported by a mandrel 32. The pellets are carried away in a flow of water through a housing 60 surrounding the die outlets. Water is supplied to the housing 60 through an inlet pipe 81 and passages 82, and part flows through passages 87 (Fig. 8, not shown) in the hub 65 and past the knives 70, whilst another part flows through the mandrel to cool and lubricate its bearings. Serpentine passages 140 (Fig. 5, not shown) are provided in the die plate 25 for the flow of a cooling or heating medium.
Patent GB-1147576-A (GB)
Title: Improvements relating to vacuum switches
IPC: H01H33/66
Filed: 1968-02-16
Abstract: 1,147,576. Vacuum switches; arc-rupturing. SPRECHER & SCHUH Ltd. 16 Feb., 1968 [21 Feb., 1967], No. 7609/68. Heading H1N. In a vacuum switch arranged for arc suppression, two pairs of contacts 1, 1<SP>1</SP>, 2, 2<SP>1</SP>, Figs. 2,3 in a common enclosure are arranged in series and parallel with a semi-conductor diode 4 and are opened sequentially, the parallel pair, 1, 1<SP>1</SP> being opened first when the diode is in its current passing condition and the series pair 2, 2<SP>1</SP> being opened when the diode is in its immediately following current-blocking condition. In Fig. 2 one fixed contact 1 and the diode 4 are mounted on an electrically conductive end cap 8 of the vacuum enclosure and a bracket 18 mounted on the diode 4 supports a spring- loaded bar 11 carrying contacts 1<SP>1</SP>, 2. The spacing is such that as the moving contact 2<SP>1</SP> is withdrawn by actuator 5 the contacts open in the required sequence. In Fig. 3 the moving contact 21 is arranged on one side of the contact 1<SP>1</SP> and is yieldingly mounted on a bracket 14 attached to the actuator 5. The fixed contact 2 is directly mounted on the diode 7. With this arrangement the contacts 2, 2<SP>1</SP> opening second are in series with the diode 4 and are in parallel with the contacts 1, 1<SP>1</SP>.
Patent GB-1506881-A (GB)
Title: Current divider
IPC: H03F3/347
Filed: 1975-02-24
Abstract: 1506881 Current dividers RCA CORPORATION 6 Aug 1975 [24 Feb 1975] 7658/75 Heading H3T A circuit for dividing a current in a predetermined ratio independent of temperature comprises a pair of transistors 61. 62 with their emitters receiving the current to be divided and having their bases connected to opposite ends of a resistor 116, through which passes a current proportional to absolute temperature. The temperature dependent current through resistor 116 is provided by current amplifiers 110, 120 connected in a positive feedback loop. Because of the presence of resistor 116, the gain of amplifier 110 falls with increasing current so that the current flowing through the two branches of the amplifiers stabilizes at a temperature dependent value at which the amplifier loop gain is unity. As shown the gain of amplifier 120 does not vary with current, but emitter resistors may be included to provide either positive or negative variation. An emitter follower may be provided in the collector-base feedback of transistor 124 to reduce inaccuracies due to base current. Other current dividers 10, 20, 30, 40, 50 may be provided utilizing the voltage drop across other resistors carrying a temperature dependent current. Amplifiers 110, 120 may be of other types generally known as current mirrors, Figs. 4, 5, 6 and 7 (not shown).
Patent GB-136430-A (GB)
Title: Improvements in Apparatus for Screening, Separating or Grading Divided Substances.
Inventor: STATHAM FRANK HAROLD
IPC: F24B15/00
Filed: 1919-03-27
Abstract: 136,430. Statham, F. H. March 27, 1919. Fixed sieves.-In screening- apparatus, particularly adapted for household use, of the type comprising a closable casing a containing a removable inclined screen c, means such as a plate g for directing the material to be treated to the upper end of the screen, and slidable receptacles or drawers h, h<1> below the screen, auxiliary receptacles n, n<1> of shallower depth are provided beneath the receptacles h, h<1> to receive dust or other material not collected by these receptacles. The casing is provided with a hinged cover e to which is pivoted a flap f adapted to protect the hinges from dust. The drawers n, n<1> are also adapted to discharge any spilled material through a longitudinal opening near the lower end of one of the side walls of the casing. Plates j, k, l and strips m with bevelled edges a.re provided above the drawers h, h<1> to assist in directing material into the drawers. An additional cover o is provided through which the screen c and the plates g, j, k, l may be removed for cleaning purposes.
Patent GB-103598-A (GB)
Title: Improvements in and connected with Leather Link and Leather Laminated Belting.
Inventor: TULLIS DAVID KIEL
IPC: F16G1/26
Filed: 1916-06-01
Abstract: 103,598. Tullis, D. K. June 1, 1916. Belts.-To protect the stitching or other fastening-means at the sides of a leather laminated belt, the outermost strands of leather C are U-shaped and are folded or pressed over to enclose the stitches D<1>. The two edges of the strands C are afterwards stitched or fastened together.