baber/WOPTO huggingface dataset:
Patent GB-1441473-A (GB)
Title: Contiguous bored pile walls
IPC: E02D5/14
Filed: 1974-01-23
Abstract: 1441473 Piled walls SOIL MECHANICS Ltd 11 Feb 1975 [23 Jan 1974] 03168/74 Heading E1H A method of forming a concrete, cast insitu contiguous bored pile wall comprises sealing the spaces 11 between the piles with a grout pumped through ducts 8 within the piles after the concrete has achieved only an initial set so that the grout can break out through the concrete and consolidate the surrounding soil. In operation, the pile casing is sunk. Reinforcement 6 is placed in position with a duct 8, and the concrete is cast. Subsequently grout is pumped through a pipe placed in the duct 8, and exudes through perforations in the duct below rubber sleeves 9. The duct can be formed from a metal or plastics tube, or a filler, e.g. polystyrene, which is subsequently ruptured. Several grouts can be used, e.g. coloids, suspensions, polymers, resins, or grouts based on sodium silicate.
Patent GB-952682-A (GB)
Title: Improvements relating to fuel injection for diesel type internal combustion engines
Inventor: GARDNER JOHN KYNASTON
IPC: F02D1/00
Filed: 1962-01-29
Abstract: 952,682. Regulating; starting. L. GARDNER & SONS Ltd. Jan. 28, 1963 [Jan. 29, 1962], No. 3216/62. Heading F1B. In a fuel injection control device for a diesel engine, a manually-operated plunger is axially displaced and rotated to render the fuel limiting mechanism temporarily inoperative. To obtain increased fuel charge at starting, dust flap 20 is lifted and a screwdriver blade engaged in slot 16 is used to first depress plunger 14 and then rotate it so that eccentric pin 19 displaces plunger 10 upwardly to pivot arm 7, thus rendering the fuel limiting mechanism, e.g. a governor control, inoperative. The housing of the device and the fuel limiting mechanism may be formed as a single casting.
Patent GB-486461-A (GB)
Title: Improvements in retractile under-carriages for aircraft
IPC: B64C25/12
Filed: 1937-02-04
Abstract: 486,461. Retractable undercarriages for aircraft. WILLOUGHBY, P. N., and WILLOUGHBY DELTA CO., Ltd. Feb. 4, 1937, No. 3350. [Class 4] A retractable undercarriage for aircraft comprises a rigid wheel-carrying strut pivotally attached to the aircraft and constituting one element of a tripod, the other two elements of which each comprise struts pivotally attached to the aircraft at the one end and to the wheelcarrying strut at the other and each pivoted intermediate its length, means being provided to prevent collapse of these elements when the undercarriage is extended and to effect their collapse when the undercarriage is to be retracted. As applied to a high-wing monoplane having a Vee-shaped centre section 1, Fig. 1, a landing carriage comprises a strut 3 hinged to wing 1 at 4 adjacent the rear spar thereof and formed at its lower end with a spur 3a on which is pivotally mounted an axle 5a carrying wheel 5. The position of the axle is controlled by a shock-absorbing device 5c. A drag strut hingedly attached to the wing at 9, Fig. 2, adjacent the front spar and to strut 3 at 10 comprises elements 6, 7 hingedly connected at 8. A radius rod hinged at its upper end to wing 1 at 14 and its lower end to strut 3 at 15 is composed of an upper element 11 hingedly connected to a lower part 12 constituted by two parallel members. A stay 16 is hinged thereto at point 8 and at its other end is hinged to a member 17 slidably mounted on a rod 18 carried by strut 3. A stay 19 composed of two spaced parallel members is hinged at 20 to wing 1 and at the other end to a member 21 slidably mounted on a rod 22 carried by member 11. The retracting means comprise a single cable 24 connected to the landing wheel axle, a double cable 25 connected to member 17, and a double cable 26 secured to member 21. For retraction, cables 25, 26 are first actuated to draw sliding members 17 and 21 along their respective rods towards hinges 4 and 14 respectively, and cable 24 is tensioned when these members reach approximately the half-way stage to draw the parts into recesses in the wing. For extension, cable 24 is released allowing the undercarriage to fall and the extending movement is completed by operation of cables 25, 26.
Patent GB-121673-A (GB)
Title: Improvements in and relating to Internal Combustion Engines.
Inventor: LEADBETTER THOMAS ABNEY NAPIER
IPC: F01L5/06
Filed: 1918-02-26
Abstract: 121,673. Leadbetter, T. A. N., Gilchrist, A. L. Knox-, and Tate, W. R. Feb. 26, 1918. Valves.-In an engine having a reciprocating sleeve valve 4, an inwardly contractible packing- ring 1 is provided seated either in a recess 3 in the cylindrical wall 2 and retained by a bush 5 or in the outer surface of the sleeve valve. In the latter case, which is particularly advantageous where the cylinder is of aluminium, the ring or rings bear against a bush having ports coinciding with those in the cylinder wall.
Patent GB-744535-A (GB)
Title: Method of and means for measuring distance
IPC: G01S13/91
Filed: 1953-02-06
Abstract: 744,535. Time constant measurements. PHILCO CORPORATION. Feb. 6, 1953 [Feb. 8, 1952], No. 3416/53. Class 37. [Also in Group XL (c)] Relates to a distance measuring system comprising a feed-back oscillator in which the delay in the feed-back path comprises the propagation time of electromagnetic waves over said distance, means being provided for measuring the frequency of the oscillator which is inversely proportional to said distance. The principle of such a system is illustrated in Fig. 2, which shows a valve oscillator 42, the delay in the feed-back path being represented by delay device 44. In such a system the oscillator tends to produce harmonics of the desired frequency and according to the present invention this is prevented by inserting in the feed-back path a filter 46 having a transmission characteristic as shown in Fig. 3 which has a cut-off frequency equal to or only slightly greater than the oscillator frequency with the delay 44 set to its minimum value. Also the circuit constants of valve 42 are such that it stabilizes its gain by self-bias so that oscillation around the loop for the signal of greatest amplitude in the output from the filter 46 is just preserved. The invention is described as applied to a radar altimeter which-transmits a modulated signal, the system functioning as a closed loop circuit oscillating at the modulation frequency and the free space transmission path constituting the delay in the feed-back path corresponding to delay device 44, Fig. 2; amplitude, frequency or phase modulation may be employed. As shown in Fig. 1, separate transmitting and receiving aerials 10, 18 are employed and the R.F. oscillator 12 is modulated at 34 by the sinusoidal signal obtained by demodulating the reflected signal in detector 28, the frequency of the modulation signal as measured at 30 being an inverse function of the altitude, Fig. 4 (not shown). The modulation signal feed-back path includes a filter 36 corresponding to filter 46, Fig. 2, and an amplifier 32 giving an output of constant amplitude. The system shown in Fig. 1 may be used for measuring distances other than by reflection in which case the aerials 10 and 18 are located respectively at the initial and terminal points of the distance to be measured. In such a system the delay time round the loop from aerial 18 to aerial 10 must be independent of the locations of the two aerials, e.g. the receiver may be connected to the transmitter by means of a flexible cable.
Patent GB-130637-A (GB)
Title: Web Elements of Aircraft Structural Members.
Inventor: MOONEY DERMOT JOSEPH
IPC: B64C1/08
Filed: 1918-02-27
Abstract: 130,637. Mooney, D. J., and Waldram, P. J. Feb. 27, 1918. Framework.-Metal spars or girders for aircraft have tubular web members secured in the channels of the flange members by through riveting, bolting, or wiring to the side arms of the channels. Fig. 2 shows an example in which the whole web structure comprises oblique tubular members t riveted in the channels of the flange members c. The ends of the tubes may be plugged for riveting. Fig. 3 shows tubular posts t secured in the channel members c by wire tension members w. In this case, the sides of the members c are beaded inwards at c<1>, Fig. 3<a>, and the tubes are increased in diameter at the ends by a collar d, or by enlarging them along the diameter transversely of the channel, and are secured by a tubular rivet f through which the wire w passes. The beaded edge of the rivet f prevents abrasion of the wire member. Transverse bracing-members x of wood or metal are shown. In another construction, flat diagonallyarranged ties are used instead of the wires wand tubular members for the transverse wires w<1>. A common rivet secures both the flat tie and the adjacent tubular member to the channel member c. Fig. 4 shows tubular web members t riveted in the channels g of members which have a flat web g<1> integral with the channels. According to the Provisional Specification, the web members may be welded to the channels.
Patent GB-725162-A (GB)
Title: Improvements in or relating to a method and apparatus for spraying fusible substances
IPC: B05B7/22
Filed: 1953-02-09
Abstract: 725,162. Flexible pipes. KREBBER, E., and KREBBER, H. J., [trading as KREBBER, J. &. O.]. Feb. 9, 1953, No. 3576/53. Class 99 (2). [Also in Groups XI and XXIX] In apparatus for spraying fusible materials (see Group XXIX) the material, in molten condition, is conveyed to a spraying device through a flexible pipe comprising flexible, corrugated, tubular metal core 32 surrounded by glass wool 33, or other heat and electrically insulating material, contained within a metal covering 34 preferably comprising a copper or steel braiding. The latter may be covered by rubber hose.
Patent GB-1260442-A (GB)
Title: Wiper blade for machine wires of paper-making machines
Inventor: CORBELLINI GLAUCO
IPC: D21F1/48
Filed: 1970-01-26
Abstract: 1,260,442. Papermaking. G. CORBELLINI. 26 Jan., 1970 [29 Jan., 1969], No. 3596/70. Heading D2A. [Also in Division C7] A foil blade comprises an elongated body of plastics material, reinforced by at least one metal member, and having a portion shaped for mounting on a supporting beam; a first smooth strip of hard metal alloy having a low coefficient of friction and a high resistance to chemical attack which is fast with the body, and has a longitudinal edge thereof projecting from a longitudinal edge of the body; and a second smooth strip of plastics material fast with the body and the first strip, providing a substantially flat free surface. The first strip may be formed of an alloy of carbon, chromium, tungsten and cobalt, which may also contain iron, manganese, silicon and nickel. As shown, plastics body 7 is reinforced by member 8 embedded in the plastics, and is formed with dovetail 10 to engage a supporting beam. Hard alloy strip 6 and plastics strip 11 are fast with the body 7 and each other to provide a flat top surface. The supporting beams may be pivoted at one side so that rotation of the beam brings the blade edge nearer the wire (Fig. 1, not shown).
Patent GB-1411722-A (GB)
Title: Method of testing the oxygen and nitrogen content in steel
IPC: G01N33/20
Filed: 1974-01-25
Abstract: 1411722 Testing gas content of steel SKF INDUSTRIAL TRADING AND DEVELOPMENT CO BV 25 Jan 1974 [5 Feb 1973] 03624/74 Heading G1B A method of testing the oxygen and nitrogen content of a steel sample comprises heating the sample in a vacuum or non-oxidizing atmosphere to extract oxygen and nitrogen gases and then measuring the properties of these gases in comparison with the properties of the oxygen and nitrogen gases extracted by heat from a standard test piece having a known weight and known oxygen and nitrogen content, the standard piece consisting of a spherical body. The surface of the standard test piece may be coated with a layer of gold or another oxidizing-resistant material. The standard test piece may be made of ball bearing steel produced by the open-hearth process, and may be finish polished.
Patent GB-470012-A (GB)
Title: Improvements in systems for supplying pulverised fuel to burners
IPC: F23K3/00
Filed: 1936-02-06
Abstract: 470,012. Pneumatic conveyers. JORGENSEN, M. VOGEL-. Feb. 6, 1936, No. 3668. [Class 78 (i)] In a system for supplying pulverized fuel and air to a burner in a rotary kiln in which the fuel is carried by primary air of combustion from a grinding mill 3 through a fan 5 to the burner, means such as a fan 6 is provided for adding additional primary air of combustion between the fan and the burner. The additional air may be supplied to a fixed or axially displaceable casing surrounding the pipe from the fan 5, preferably so arranged that the common pipe for the two supplies of air is as short as possible. The amount of primary air drawn through the mill is varied by adjusting one or more dampers 12, by a variable fan, or by adjustable throttling devices arranged between the mill and the fan. Coarse particles of coal are separated in a separator 4 and returned to the mill for re-grinding. Some or all of the primary air may be pre-heated.
Patent GB-765005-A (GB)
Title: Improvements in adjusting apparatus
IPC: B23Q5/40
Filed: 1955-02-08
Abstract: 765,005. Machine-tool details. SCHNETZER, E., LINNEMANN, G., and SCHNETZER, T., [trading as LINNEMANN - SCHNETZER KOMM.-GES.]. Feb. 8, 1955 [Feb. 11, 1954], No. 3701/55. Class 83 (3). [Also in Group XXIV] Apparatus for adjusting an element 2, e.g. a machine - tool carriage, a microscope, &c., having a tubular part 4, comprises fine threads in the part 4 engaging a spindle 6 and coarse threads 4a engaging a nut 8 which is constrained against axial displacement relatively to the spindle but can be freed for rotation relatively thereto, the threads 4a being of a sufficiently coarse pitch to turn the part 4 upon axial pressure being applied to the nut. For fine linear or angular adjustments of a tool or microscope slide operated by the lead-screw 2, the apparatus is set to reduce the drive-ratio between a hand wheel 7 and the screw 2 approximately in the ratio of the pitch of the fine threads on the spindle 6 and the coarse threads on part 4. Rotation of the wheel 7 screws the spindle 6 out of part 4 and displaces the nut 8 which is constrained to move with the spindle by a housing 8a, 8b attached to the nut and surrounding a flange 6b on the spindle. Displacement of the nut 8, which is splined at 12 to a tubular carrier 11 releasably clamped by spring-pressed rods 18, Fig. 4, to a casing 16, rotates the part 4 which is connected to the screw 2. The latter may be rotated by the wheel 7 without a reduction ratio by turning a screw 20 having a conical end to separate the clamping-rods 18, thus freeing the carrier 11 in the housing 16, and clamping the spindle 6 to the nut 8 by withdrawing a screw 21 having a conical tip which allows pins 22, Fig. 3, in the flange 6b of the spindle to move out of the path of spring-pressed rods 23, and the latter to clamp the flange 6b to the housing 8a, 8b. Scales indicating coarse and fine adjustments are provided on rings 14, 13 adjustable on an extension 11a of the carrier 11, the index for the ring 13 being on a ring 9 adjustable on the spindle 6. In an alternative arrangement for changing the drive ratio, a toothed sleeve 24<SP>1</SP>, Fig. 5, meshes with teeth on the carrier 11<SP>1</SP> and with teeth 25<SP>1</SP> on the spindle 6<SP>1</SP> for a reductionless drive, or with teeth 17<SP>1</SP> on the casing 16<SP>1</SP> for a reduction drive. Clamping screws or eccentrics may also be used for changing the drive ratio to a microscope slide.
Patent GB-1291978-A (GB)
Title: Improvements in and relating to variable displacement rotary sliding vane pumps
IPC: F04C14/22
Filed: 1970-01-26
Abstract: 1291978 Rotary positive-displacement pumps CHANDLER EVANS Inc 26 Jan 1970 [4 Feb 1969] 3725/70 Heading F1F In a variable sliding-vane-type pump blocks 14, 16 with cam surfaces 42, 44 for the vanes 36 of the rotor 32 are supported by casing surfaces 20, 22 so as to be movable by mechanism (not shown) diametrically relative to each other and the rotor, movement being limited by projections 62. Tongues 66 bridge the gaps between the blocks. Pairs of inlet and discharge passages 46, 48 and 50, 52 are formed in fixed end plates 72, 74, which provide bearings 76 for the rotor shaft 30. A greater proportion of the working fluid is displaced between the passages 46, 48 than between the passages 50, 52. The vanes are stepped and loaded by pressure transmitted to pockets 38, 40 from said passages by way of passages 78.
Patent GB-671146-A (GB)
Title: Radar system
IPC: G01S1/02
Filed: 1950-02-14
Abstract: 671,146. Radiolocation. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Feb. 14, 1950 [March 12, 1949], No. 3793/50. Class 40 (vii). In a frequency-modulated radar the transmitted frequency is cyclically varied in a linear manner between limits Fo and Fm, curve EM, Fig. 2, and the delayed echo signal, e.g. curve I or II, is heterodyned with a signal derived from the transmitter which varied between limits Fo+np and Fm+nr which are such that the slope of the frequency variation C of the derived signal is less than that of the transmitted signal so that the frequency of the resultant beat note decreases linearly during the modulation cycle, the instant at which it is equal to some predetermined value, e.g. np, being dependent on the range of the reflecting object. As shown in Fig. 1, the frequencies of the transmitter E and oscillator O are varied synchronously by a motor G which rotates condensers K1 and K2, the transmitter frequency increasing from Fo to Fm and the oscillator frequency decreasing from fo to fm. The oscillator output is heterodyned at L with the output from a crystal-controlled oscillator S of frequency s and the resultant summation signal whose frequency decreases from p=(fo+s) to r=(fm+s) is frequency multiplied at N by a factor n, curve N, Fig. 2, and heterodyned at C with an output from the transmitter, the resultant summation signal (frequency increasing from Fo+np to Fm+nr, curve C, Fig. 2) being applied to heterodyne the received echo signal at D. The frequency of the beat note output from D decreases during the modulation cycle and this output is applied to a narrow-band filter 1 tuned to a frequency np so that the output from the filter comprises a wave pulse of short duration whose occurrence time depends on the range of the reflecting object and this time is measured by applying the pulse through frequency changers 2 and 4 (supplied with local oscillations of frequency ms and s respectively from the frequency multiple M and oscillator S), amplifier 5, detector 6 and video amplifier 7 to the Y-plates to a cathode-ray tube 15 whose horizontal time-base is generated by a rotary potentiometer 13 driven by motor 9.
Patent GB-652997-A (GB)
Title: A percussion toy
Inventor: SHORROCKS LESLIE
IPC: A63H5/04
Filed: 1948-02-10
Abstract: 652,997. Percussion toys. McMILLEN, G. H. Feb. 10, 1948, No. 3812. [Class 132 (iii)] A percussion toy of the type comprising a flighted stem and a base arranged to be releasably connected together with a percussion cap or other explosive device or material fitted between them has a striker extending through the base 6 and a male and female connection between the stem 1 and the base 6. As shown in Fig. 1 the base 6 with striker 13 has notches 15 which engage pins 16 on the stem 1. A screw thread may be used instead of a bayonet fitting and channels may be provided in the base 6 to remove gases formed when the cap explodes. As shown in Figs. 5 and 6 pins 18 and 19 may be used to form percussion surfaces and a propeller 21 may be fitted. An eyelet may be attached for a cord. The flight may be paper, feathered or plastic and if plastic may be integral with the stem.
Patent GB-363882-A (GB)
Title: Improvements relating to control devices for steam steering, winding and other engines
IPC: F01B25/00
Filed: 1931-02-06
Abstract: 363,882. Economizer valve-gear. WIGHAM, J. R., South Hylton Engine Works, South Hylton, near Sunderland. Feb. 6, 1931, No. 3842. [Class 122 (iv).] Relates to control devices of the kin d described in Specification 22616/10, [Class 122 (iv), Steam engines, Regulating &c.] wherein an economizer valve a is operated by a fluid-pressure piston g controlled by t h e action of the steering- engine. In the construction shown, the valve a controlling the steam passage e is provided with an upper seat which engages a seat b and prevents steam passing to the lower side 'of the cylinder which is opened permanently to exhaust. The top of the piston g is put to steam or exhaust by tappet valves k controlled by a lever v pivoted at u between them, and provided with double V-tracks x, x<1> which engage rollers y, y<1> on a lever z pivoted to a support z<1>. On the lever z being rocked by the longitudinal movement of the bunting-gear, the valves k are operated to move the valve a. Alternately, the valves k may be directly operated by V-tracks on a longitudinally movable shaft, or the V-tracks and rollers shown may be transposed.
Patent GB-733346-A (GB)
Title: Improvements in and relating to the delivery of granular or powdered material from vehicles
IPC: B65D88/72
Filed: 1952-02-13
Abstract: 733,346. Unloading material from vehicles by fluidization. DURAMIN ENGINEERING CO., Ltd., and OGLETHORPE, E. L. May 13, 1953 [Feb. 13, 1952], No. 3855/52. Classes 78 (1) and 78 (4). One or more conveyers 2 of the type in which powdered material is caused to flow over the porous base of a shoot by air passed through the base, delivers powdered material from a chamber 1 on a motor-driven vehicle. In the vehicle illustrated, the conveyers 2 deliver to the outlet passage 10 of a blower 13 on the vehicle. One conveyer 2, extending the full length of the chamber 1, delivers directly to the discharge aperture 3 while conveyers 2 on either side are connected by end portions 4a to the aperture. In an alternative form, however, the conveyers may be arranged in two groups delivering to a central aperture. A compressor 6 driven through shafting 14, Fig. 1, delivers air to the conveyers through conduits 8 which may be selectively controlled by valves. A screw 9, Fig. 2, controls the feed of material from the aperture 3 to a venturi 10 in the outlet from the blower. The screw 9 may be driven, as shown, through shafting 14 from the engine of the vehicle but is preferably driven by an electric motor from the batteries of the vehicle under the control of a centrifugally operated switch, which is closed only when the blower 13 is operating, and by a switch which is opened when a flap 12 is closed by undue back pressure in the venturi 10 resulting from a blockage. The chamber 1 is filled through air-tight covers 1b, Fig. 1, so that pressure is built up within the chamber to assist the discharge of material. The blower 13 may be connected by suitable ducting at the unloading station to deliver the material to a considerable height above ground level and, where contamination of the material must be avoided, may form part of a closed circuit system in which the material is precipitated by a cyclone and in which a filter may be provided to prevent recirculation of the material. According to the Provisional Specification the feed from the aperture 3 may be regulated by a suitable curved partition plate at the entry to the venturi 10 instead of by the screw 9; this subject-matter does not appear in the Complete Specification.