baber/WOPTO huggingface dataset:
Patent GB-625338-A (GB)
Title: Improvements in or relating to vehicles
IPC: B62D49/08
Filed: 1947-04-29
Abstract: 625,338. Vehicle undercarriages. BURTON, L. C. April 29, 1947, No. 11430. Convention date, Sept. 27, 1946. [Class 108 (ii)] [Also in Groups XXXI and XXXIV] A vehicle includes two land-wheels 21, Figs. 2 and 3, mounted one on each side of a chassis 20 in such a manner that the plane of each wheel has a constant angular relation to the transverse plane of the chassis, means being provided responsive to transverse unevenness of the land under the wheels for simultaneously raising one wheel and lowering the other to maintain the chassis horizontal. The invention is described as applied to a tractor having two driving-wheels and a steerable third wheel 22. Each driving-wheel is mounted on one end of a longitudinally extending arm 68, Fig. 6, attached to a hub 67 keyed to a hollow spindle 63, which is provided with a radially extending flange 105. Each of the opposite flanges 105 has secured to it a quadrantial bevel-gear 106 which engages a pinion 108 whose spindle 117 is extended to carry a second pinion 119. The casing 24, in which the bearing 118 of the spindle 117 is mounted, is pierced with slots 122, Fig. 8, through which passes a rack 121 engaging the pinion 119 and secured at each end to the piston 124 of a horizontally-disposed single-acting hydraulic-cylinder 123. If the body of the tractor is displaced from its laterally level position, a float-arm 158, Fig. 9, in a valve chamber 130 turns a rotary valve 132 to allow pressure fluid, supplied by an engine-driven pump, to flow into one cylinder 123 and allow fluid to be discharged from the other cylinder. The resulting movement of the rack 122 turns the pinions 119, 108, so raising one of the tractor wheels and lowering the other until the lateral level is restored. The fluid discharged from the cylinder 123, and any escaping from a relief valve 155, collects in the valve chamber 130 from which it flows to a reservoir through a pipe 156, a suitable level of fluid being so kept in the chamber. Taps 163 in the pipelines 162 allow the cylinders 123 to be put out of action. In a modification, the pinion 119, Fig. 6, is mechanically-driven by a worm (not shown) rotated through a wheel 179, Fig. 15, by a worm 180 carried on a shaft 181 which is universally coupled to a second shaft 183 whose other end carries a friction-wheel 184. Two verticallydisposed, laterally-spaced, friction-wheels 185 are driven in the same direction by the engine through bevel-gears 188. When the tractor is laterally level, the wheel 184 engages neither friction-wheel 185, but on tilting taking place it is forced against one or other of them by a longitudinally-pivoted pendulum 191 which acts on the shaft 183. The tractor is provided with change-speed gearing (see Group XXXI) and braking-mechanism (see Group XXXIV).
Patent GB-114965-A (GB)
IPC: A41C1/08
Abstract: 114,965. Kops, D. Sept. 6. 1917. Corsets. - Relates to corsets having a closed back, a lacing at the front, a tongue behind the lacing, tension devices below the lacing, and skirts depending from the body portion, all as described in Specification 113,748; and consists in attaching the tongue 48 by lines of stitching 49, 50, 51 to the two sides of the lacing 47 and to the tension strap 31, and in providing the tongue, which is preferably of tapering form, with longitudinal and transverse stiffeners 52, 53, 54, the longitudinal stiffeners being inclined to one another as shown in Fig. 5. When laced up, the stiffeners act as gauges to adjust the corset so that it shall be symmetrical on both sides of the centre, the tongue folding as indicated in Fig. 4.
Patent GB-346171-A (GB)
Title: Improvements in objectives
IPC: G02B13/00
Filed: 1930-04-11
Abstract: 346,171. Lenses. WARMISHAM, A. and KAPELLA, Ltd., 104, Stoughton Street, Leicester. April 11, 1930, No. 11499. [Class 97 (i).] In a photographic or projection objective of the kind shown in Fig. 10 of Specification 168,923, [Class 97 (i), Optical systems &c.], comprising five members of which the first is convergent, the second and third are divergent and bi-concave, and the fourth and fifth are convergent, the first member and either or both of the fourth and fifth are made as convergent doublets, each of the cemented surfaces being convergent and concave towards the longer conjugate. The second and third members are unsymmetrical and present their faces of weaker curvature towards each other. The object of the invention is to increase the aperture and to provide improved correction of zonal spherical aberration simultaneously with improved approximation to flatness of field. Numerical data are given for two examples having an aperture of f/1, one being that shown and the other a combination in which the first and fourth members are doublets.
Patent GB-662984-A (GB)
Title: Improvements in curtain-supporting devices
Inventor: SAYER ARTHUR LEON
IPC: A47H13/10
Filed: 1949-04-30
Abstract: 662,984. Suspending curtains. HARRISON (BIRMINGHAM), Ltd. Jan. 23, 1950. [April 30, 1949] No. 11567/49. Class 52 (v). A master runner for overlapping curtains comprises a laterally cranked suspension bar 10 having a depending slotted web 12 supported from the rail by slides 21. The leading curtain hook 28 or runner engages the slot 16 and the second hook 29 engages in a hole 18 at the end of the bar and when the curtain is pulled back the hook 28 slides along the slot.
Patent GB-916929-A (GB)
Title: Production of polychloroprene
IPC: C08K3/30
Filed: 1961-03-30
Abstract: Chloroprene is polymerized in aqueous alkaline emulsion in the presence of sulphur and a peroxy catalyst and at least one sulphurcontaining organic plasticizer and an alkali sulphite and/or bisulphite is added to the resulting dispersion.  The chloroprene may be polymerized in the presence of minor amounts of styrene, methyl methacrylate, butadiene or 2,3-dichlorobutadiene.  Sodium, potassium and ammonium sulphites and bisulphite are specified used preferably in amount from 0,1 to 0,8 part per 100 polychloroprene.  Alkyl dithiocarbamates and alkyl thiuram disulphides are specified plasticizers. Specified peroxy catalysts are benzoyl peroxide, perbenzoic acid, sodium persulphate and dicumyl peroxide while sulphate dispersing agents may also be present.  Specifications 504,466 and 529,838 are referred to.
Patent GB-1030808-A (GB)
Title: Process and apparatus for the detection of the slope of an electric signal
IPC: G01R19/12
Filed: 1964-03-19
Abstract: 1,030,808. Transistor pulse circuits. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. March 19, 1964 [March 21, 1963], No. 11713/64. Heading H3T. A circuit for detecting a significant point on an input pulse such as the beginning, maximum or end comprises means for producing pulses at a rate dependent upon the instantaneous magnitude of the input pulse means for integrating these pulses to produce a signal which is applied through a differentiator to a switch. The production of the variable rate pulses may be effected by charging a capacitor from the input signal and discharging it each time it reaches a predetermined charge. Alternatively, it may be effected by a motor driven at a speed dependent on the input signal and controlling a switch. As a further alternative, the input signal controls the frequency of a B.F.O. type pulse generator. Greater accuracy may be obtained by recording the signal and playing it back at a higher speed. Fig. 3 (not shown), comprises a filter 4 for receiving the variable rate pulses, a transistor amplifier 5, a diode capacitor integrator 7, a transistor amplifier 8, a filter 9, a further amplifier 10, a differentiator 11, and a switch 12. In Fig. 2 (not shown), the input pulses are applied to a detector 14 in accordance with the invention and to a counter, the output from the detector causing printer 16 to print out the total and its counter.
Patent GB-392727-A (GB)
Title: Improvements relating to aeroplanes
IPC: B64C1/14
Filed: 1932-04-23
Abstract: 392,727. Aeroplane cabin-tops. COMPER AIRCRAFT CO., Ltd., Heston Airport, Hounslow, Middlesex, and COM. PER, N., Hooton Park Aerodrome, Wirral, Cheshire. April 23, 1932, No. 11746. [Class 4.] In an aeroplane a cabin-top comprises two relatively movable parts, each comprising a roof and side walls, of which the front part is provided with a roof movable relatively to the side walls and is adapted in its rearward movement to slide over the roof of the rear part of the cabin-top and to fit closely in contact with the roof, so as to uncover that part of the cockpit adjacent to pilot's and/or passenger's seat. The cabin-top comprises a fixed screen 3, against which abuts a rearwardly slidable part 1, and a fixed rear part 2. Roof portion 9 of part 1 is hinged to its side walls by links 10, 11 at the front and by a pin and slot connection at the rear. Actuating means which may be disposed within the cockpit comprise a pivoted hand-lever 15, rearward movement of which causes part 1 to slide rearwardly, the side walls being engaged in guides formed in the side walls of the fuselage and the underside of roof 9 engaging in guides in top members 14 of the roof of rear part 2. A baffle 6 is fitted to screen 3 at the top and similar baffles may be fitted at its sides.
Patent GB-707652-A (GB)
Title: Improvements in or relating to yarn spinning, twisting and similar machines
Inventor: KELLY JOHN MILLAR
IPC: D01H1/18
Filed: 1951-05-22
Abstract: 707,652. Transfer tail winding means. BAXTER BROS. & CO., Ltd. May 21, 1952 [May 22, 1951], No. 11884/51. Class 120(2) In means for producing a transfer tail on a yarn package on a bobbin the lower flange a<SP>2</SP> of a bobbin A is supported on a disc-like bobbin carrier B<SP>1</SP>, the bobbin and carrier being connected so that they will rotate together about a central spindle C, the carrier B<SP>1</SP> rests on a drag ring E<SP>1</SP> having a tube E extending upwards therefrom which surrounds the carrier B<SP>1</SP> and the greater part of the lower flange a<SP>2</SP> of the bobbin, this part being reduced in diameter to be a running fit inside the tube, and the lower flange of the bobbin is provided with a lead-in groove a<SP>4</SP> inclined in the direction of rotation of the bobbin and a portion of the upper edge of the tube E is cut away to form a recess e, the forward end e<SP>1</SP> of this recess in the direction of rotation of the bobbin being inclined or undercut. As shown, the connecting means between the carrier and the bobbin comprise pegs b. Specification 707.730 is referred to.
Patent GB-1287683-A (GB)
Title: Improvements relating to tipplers
Inventor: SLOAN BRYCE NAIRN
IPC: B65G65/23
Filed: 1970-03-12
Abstract: 1287683 Tipplers B N SLOAN 4 Aug 1970 [12 March 1970] 11962/70 Heading B8E A tippler comprises a pivotally mounted cage 2 for housing a container to be emptied, the cage being displaceable between loading and discharge positions by a linkage arrangement 6, 7, 10 thereon, which may be controlled by forks F of a fork-lift truck used to deliver and remove the container to and from the cage 2. The forks may engage a slot in the linkage arrangement 6, 7, 10 for positive lifting and lowering of the linkage, or the linkage may be lowered, after discharge of the container, by counterbalance weights or springs. An emptying spout 11 is provided on the cage 2.
Patent GB-183267-A (GB)
Title: Improved treatment of cylinders which are to withstand high internal pressure
IPC: C21D9/08
Filed: 1921-04-26
Abstract: 183,267. Sandberg, C. P., and Humfrey, J. C. W. April 26, 1921. Drawings to Specification. Modifying physical characters of metals.- In a heat treatment for steel cylinders such as gun barrels, gas cylinders, &c. which are required to withstand high internal pressure in which the interior of a cylinder is cooled more rapidly than the exterior, the whole cylinder is heated to a temperature above the critical range before cooling and the cooling is carried out sufficiently slowly to avoid producing a hard or martensitic structure in any part of the cylinder. The cooling is effected, whilst the cylinder is rotated about its axis, by a blast of air and atomized water, the water being supplied by one or more perforated pipes inside the cylinder and being atomized by compressed air supplied by a central pipe and issuing from perforations arranged at right-angles to the perforations in the water supply pipes.
Patent GB-128648-A (GB)
Title: Improvements in Connection with Direct Current Electric Motors.
Inventor: JOHNSON JAMES YATE
Filed: 1917-08-22
Abstract: 128,648. Johnson, J. Y., (F.I.A.T. Fabbrica Italiana Automobili Torino Soc. Anon.). Aug. 22, 1917. Drawings to Specification. Motors, controlling.-Low-voltage direct-current motors are switched into or out of circuit by bringing one of the brushes into contact with, or removing it from, the commutator. The brushholder is connected to the armature of an electromagnet controlled from a distance by means of a switch in the circuit of the electro-magnet coil. The invention is applicable to the electric starting of petrol engines.
Patent GB-437032-A (GB)
Title: Improvements in or relating to collapsible photographic cameras
IPC: G03B13/20
Filed: 1934-04-23
Abstract: 437,032. Photographic cameras provided with range-finders. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on- Main, Germany. April 23, 1934, No. 12204. Convention date, April 21, 1933. [Class 98 (i)] In a collapsable camera of the kind in which the front and body are connected for extension by crossed, pivoted struts, the adjustable lens of a range-finder carried by the body is coupled to the struts so that the camera is appropriately extended as the range-finder is adjusted. The range-finder may be combined with a Galilean view-finder. As shown, the body 1 and front 16 are connected on each side by struts 12, 13 pivoted together, the lower pivots on body and front being fixed, and the upper slidable in slots 14 15. A range-finder mounted on the body comprises a pair of divergent field lenses 6, 7, a convergent eye lens 4, and a base prism 5. If the finder housing is made long enough, the prism 5 may be displaced in the direction of its length away from the eye lens 4 to permit this lens and the field lens 7 to be used as a direct vision view-finder. The adjustable element is the field lens 6 whose mount 19 together with the mount of the prism 5 is slidable parallel to the prism base and is coupled by a spring-urged fork 8 to the rear end of the strut 12 or a pin 10 thereon. Simultaneous adjustment of the mount and of the struts is effected by turning a milled knob 17 acting through a toothed gear or micrometer screw 18. The fork 8 is disengaged by hand from the end of the strut 12 before collapsing the camera, and automatically re-engages it when the camera is extended. Reference is made to cameras in which the adjustable lens of a range-finder is coupled to the camera objective by chains.
Patent GB-1532088-A (GB)
Title: Sealed reed switching devices
IPC: H01H51/28
Filed: 1976-03-26
Abstract: 1532088 Magnetic reed contact units WESTERN ELECTRIC CO Inc 26 March 1976 [31 March 1975] 12358/76 Heading H1N A sealed magnetic reed contact unit has reeds 24, 26, extending towards each other from opposite ends of a capsule (Fig. 2A, not shown) and each reed has straight parallel sides for a predetermined length and a tapered end portion forming the overlay area A2 of the reeds. In contrast with conventional square ended reeds this arrangement produces less variation of contact area due to manufacturing differences in length of overlap and alignment of the reeds.
Patent GB-973830-A (GB)
Title: Improvements in or relating to clay grouts
Inventor: POULSON PETER BRIAN
IPC: C04B28/26
Filed: 1962-03-30
Abstract: A grout comprises a mixture of an aqueous suspension of a clay mineral or of a soil containing at least 25% by weight of a clay mineral and a water-soluble alkali metal silicate, to which mixture is added an alkali metal bisulphate.  An alkali metal sulphate may also be added.  The grout is initially a fluid stable suspension which sets to form a rigid, stable gel.
Patent GB-1443139-A (GB)
Title: Press with hydraulic overload safety device and ram weight counter balancing mechanism
IPC: B30B15/00
Filed: 1975-03-25
Abstract: 1443139 Presses L SCHULER GmbH 25 March 1975 [3 April 1974 15 Jan 1975] 12414/75 Heading B3H [Also in Divisions B5 and G3] A press similar to that described in Specification 1,348,627 comprises a pressure cushion 8 serving as an hydraulic overload safety device positioned between the ram and a mechanical press drive, a cylinder-piston unit 10-12 for counterbalancing the weight of the press ram and upper die and a control system for adjusting the fluid pressure in the cylinder-piston unit 10-12 to the correct counterbalancing value. Counterbalancing is initiated by a manually operable member 20 which actuates a flip-flop 25 causing a pressure relief valve 16 connected to the cushion 8 to be opened for a time determined by a timer 27. A signal is applied from the flip-flop 25 to an AND gate 28 which is operated if a detector 21 detects a pressure higher than 0-bar in the cushion 8. As a result, a discharge valve 18 of a gas tank 15 connected to the cylinder-piston unit 10-12 is opened until the pressure in the cushion 8 falls to 0-bar, whereupon an AND gate 30 is actuated due to the absence of a signal from the detector 21 causing a gas supply valve 19 of the tank 15 to be opened for a period determined by a flipflop 26. When the pressure in the cushion 8 has increased to above 0-bar, the flip flops 25, 26 are reset by an AND gate 29 to terminate the regulating procedure. A potentiometer 40 of a Wheatstone bridge circuit is set according to the pressure in the unit 10-12 detected by a sensor 44. When the flip-flop 25 produces an output, a motor 45 is connected with one of a switch pair 47 causing a potentiometer 42 to be set in correspondence with the pressure in the unit 10-12. When no output is produced by the flip-flop 25, the other switch 47 is brought into circuit with the valves 18, 19 whereby the pressure in the unit 10-12 is kept constant corresponding to the position of the potentiometer 42 by supplying or discharging gas from the tank 15. The ram is provided with an adjusting device (7) (Fig. 1, not shown),
Patent GB-142670-A (GB)
Title: Improvements in, or relating to, spades, shovels, and similar tools
IPC: A01B1/02
Filed: 1919-05-17
Abstract: 142,670. Hopthrow, F. May 17, 1919. S p a d e s and shovels; forks.-Apparatus for facilitating the use of spades, shovels, forks, and similar tools by one hand comprises a ridged or spiked foot-plate or fulcrum-plate, one or more bars pivotally connected to the foot-plate, and swivelling means for connecting the haft of the tool to the pivoted bars. The foot-plate 4 is provided with depending ridges or spikes 5 to enter the soil, and with one or more stops 6 to limit the movement of the pivoted bar or links 1. The haft 19 of the tool is gripped in a split and flanged bush 15 which is rotatable in a split sleeve 11, 12 pivoted on the bar 1. Specifications 10442/15, [Class 6 (i), Cultivating implements &c.], 122,082, and 129,602 are referred to.
Patent GB-543000-A (GB)
Title: Preventing radio interference from electric switches, particularly switches for controlling internal combustion engines
IPC: B60L50/30
Filed: 1940-08-01
Abstract: 543,000. Turning gear. BENDIX AVIATION CORPORATION. Aug. 1, 1940, No. 12471. Convention date, Aug. 2, 1939. [Class 7 (v)] [Also in Group XXXVII] In a switch particularly for closing a circuit 73 to an ignition facilitating device 79, for an internal combustion engine, one of the fixed contacts 61 normally rests on an insulating part of a plunger 27 while the other 67 rests on an earthed conducting part 72. By this means any radio frequency energy waves proceeding from the ignition along the conductor 73 to the contact 72 are short-circuited to earth and radio interference is prevented. In the closed position of the switch, a conducting part 77 bridges the contacts. A metallic housing.also surrounds the contacts to prevent radio interference. In the arrangement shown, movement of a switch 84 to bridge contacts 80 energizes an electromagnet 14 which moves the plunger 27 to the right, closing the circuit at 61, 67 to the ignition facilitating device 79 and simultaneously operating a clutch 15. The switch 84 has previously been moved to close contacts 83 and so energize a motor M, and the flywheel F of this now serves by its kinetic energy, to start the motor. Specification 382,405 is referred to.
Patent GB-859081-A (GB)
Title: Improvements in or relating to colour television transmitting systems
Inventor: GARGINI ERIC JOHN
IPC: H04N11/14
Filed: 1956-04-25
Abstract: 859,081. Colour television. ELECTRIC & MUSICAL INDUSTRIES Ltd. April 25, 1957 [April 25, 1956], No. 12635/56. Class 40(3). In a colour television transmitting system, such as the American N.T.S.C. system, wherein the image information is transmitted by means of a brightness signal and a chrominance signal, the frequency components of which are arranged to be interlaced, e.g. by employing a chrominance sub-carrier of frequency equal to an odd integral multiple of half line frequency, the brightness signal is filtered before interlacing is effected in order to remove or attenuate undesired signals, such as noise, from the frequency gaps into which the respective components of the chrominance signal are to be injected. The invention prevents the undesired signals from producing colour interference in a reproduced image. The filtering is effected by a multiple bandpass filter having pass bands centred at harmonics of line frequency and stop bands centred at odd multiples of half line frequency. Reference is made to the use of a filter based on ultra-sonic delay lines. By passing the brightness signal through two channels in parallel, only one of which includes such a filter, and furthermore by controlling the gain of the channels in accordance with the amplitude of the chrominance signal, that which includes the filter directly and the other inversely, it may be arranged that the filtering becomes inoperative when there is no chrominance transmission.
Patent GB-1343098-A (GB)
Title: Sewing apparatus for making piped openings in workpieces
IPC: D05B3/10
Filed: 1972-03-17
Abstract: 1343098 Sewing machines DURKOPPWERKE GmbH 17 March 1972 [11 May 1971] 12677/72 Heading D1G A work feeding device which clamps and folds piping material comprises a clamp 25 which takes the piping material from a plate 27 and lowers it onto the main workpiece which is held beneath the bars 60, 61 of the feeding device 6. An inverted T-shaped clamp 24 is lowered into the gap a to hold the material, while two plates 62, 63 slide inwardly to fold the edges of the piping material over the top of the clamp 24. A carriage 11 which supports arms 12 is then moved to the left to drag the workpiece towards the twin needle sewing machine 3 and a cutting knife. Once sewing has started the carriage 11 lifts the arms 12 and moves them to the right to prepare another workpiece while the previous one is being sewed.
Patent GB-386506-A (GB)
Title: Improvements relating to grinding apparatus for flat surfaces
IPC: B24B19/00
Filed: 1932-05-03
Abstract: 386,506. Grinding. HANUS, E., 5, Friederich Strasse, Helmsdorf, and OEMETA CHEMISCHE WERKE GES., 32, Kurfiirstendamm, both in Berlin. May 3, 1932, No. 12691. [Class 60.] Apparatus for grinding flat surfaces, for example, the axle-bearing guides of locomotive and carriage frames, comprises a grinding-disc h mounted in a support a slidable, to move the disc along the surface being ground, in a guide b, which is pivoted at c to the machine frame e. The support a is oscillated about the pivot to carry the disc across the work, and thus equalize grinding, by a cam d, which may make one revolution for each complete reciprocation of the support.