baber/WOPTO huggingface dataset:
Patent GB-715312-A (GB)
Title: Improvements in or relating to automatic flight-control systems
IPC: G05D1/08
Filed: 1948-02-28
Abstract: 715,312. Automatic aircraft control systems. SPERRY CORPORATION. Feb. 28, 1948 [March 15, 1947], No. 6241/48. Class 38(4) [Also in Group XXXVI] An aircraft may be caused to execute banked turns by either the automatic adjustment of the bank angle in accordance with a predetermined rate of turn or the adjustment of the rate of turn to correspond to a given bank angle; a spiral turn can also be effected. As shown, the output from flux valve 37 is, during straight flight, applied through the differential selsyn 44 to the input of computor 18 and the craft is steered automatically along a predetermined course. The ailerons are operated by a signal generated at the pickoff 63 operated by gyro 62 which is precessed by torque motors 61, 61'. Motor 61 is energized by a signal proportional to the difference between the craft bank angle detected at the pick-off 24 of gyrovertical 23 and the required bank angle as derived by computor 18 from the predetermined rate of turn applied at knob 11. Motor 61<SP>1</SP> is energized by a signal proportional to the product of the angle of elevation, derived at sine selsyn 58 and the predetermined rate of turn derived from 12. Rudder operation is effected by pick-off 75 of gyro 74 precessed by torque motor 73 energized by the predetermined rate of turn signal generated as 12, through the cosine selsyn 68 on the pitch axis of gyro 23 and through cosine selsyn 64, on the roll axis, by the rate of turn output from 12. The elevators are similarly controlled from pick-off by gyro 84 precessed by torque motor 83 energized through cosine selsyn 78 and sine selsyn 65. A climbing turn is initiated by movement of 12 about axis 86 and a signal produced at 87 is applied to the rudder and elevators via selsyns 91, 94, 95. At the computor 18 signals proportional to the predetermined rate of turn and the airspeed are applied to a cosine selsyn on the pitch axis of 23 the output from which is applied to a device producing an angular displacement the target of which is proportional to the product of the applied signals. Short period control of the aircraft is effected by the gyros 62, 84, 74 and only if persistent errors are developed do the signals from the gyro-vertical 23 effect control. During steady flight the potentiometer 100 is shorted out and no signals are applied to 61 from 23, In an alternative arrangement, not shown, the control knob may be operated to give a predetermined angle of bank and elevation; upon a given bank angle signal being applied to the ailerons, a selsyn operated by the gyro vertical supplies a signal to a computing device, the output of which is proportional to a rate of turn which corresponds to the predetermined bank angle and which is applied to the rudder control system. The torque gyro in both embodiments may be replaced by accelerometers. Specification 715,333, is referred to.
Patent GB-651898-A (GB)
Title: Apparatus for bleaching flour
IPC: A21D2/02
Filed: 1948-02-28
Abstract: 651,898. Apparatus for bleaching flour. PILLSBURY MILLS, Inc. Feb. 28, 1948, No. 6326. Convention date, May 3, 1941. [Class 58] A machine for bleaching flour comprises a closed upright drum A having means for collecting and removing the treated flour from the lower r portion thereof, means 14 for supplying the flour, preferably from the central portion of said drum, a centrifugal rotary distributer 20 of slightly greater area than the cross sectional area of said flour supply means and receiving therefrom and constructed to cause the flour to be finely divided and thrown out centrifugally and somewhat upwardly therefrom, means 23 for discharging a bleaching gas within said drum and a fan 22 disposed some distance below both said distributer and said gas discharge and of several times the diameter of said distributer for directing a blast upwardly into the distributed flour and into and against the bleaching gas introduced. As shown, the lower part of the drum is divided into two dividing trunks 8 which join two collecting trunks 9 which form an outlet 10 which delivers into a horizontally disposed conveyer 11. The flour is delivered via a shoot 14 mounted substantially axially within the drum and provided with a downwardly directed opening at the lower end thereof on to a rotating dish 20 having a serrated edge 21 and of area relatively small to that of the drum from which it is flung out and by means of the draft from the rotating blades 22 up against the bleaching gas admitted via pipes 23 and finally falling down the shoots 8.
Patent GB-649501-A (GB)
Title: Improvements in or relating to electric control apparatus
IPC: G05B1/02
Filed: 1945-03-14
Abstract: 649,501. Inductor-alternators. IGRANIC ELECTRIC CO., Ltd., TAYLOR, J. R., and BEDFORD, J. M. March 14, 1945, No. 6379. [Class 35] [Also in Group XXXVII] Control apparatus comprises a toothed rack or wheel moving relatively to a U-shaped core member carrying a winding in which current is induced and fed to a control device such as a relay through an amplifier. In the form shown, motion of the toothed rack 1 relatively to the core 3 induces current in the coil 7 which can be rectified in the amplifier 8 and fed to a relay 9 which may control the motor driving a machine tool having a reciprocating platform on which the rack is mounted. For controlling rotary machines, the rack would be replaced by a toothed wheel and the relay could be arranged to stop, start or slow down the motor at any desired predetermined position; alternatively the relay could control the lid of a moving container such as the drum of a washing machine. The core 3 carries an exciting winding 6 or one leg may be a permanent magnet.
Patent GB-312964-A (GB)
Title: Improvements in or relating to drying devices
IPC: F26B17/10
Filed: 1928-03-01
Abstract: 312,964. Testrup, N., Soderlund, 0., Gram, T., and Techno-Chemical Laboratories, Ltd. March 1, 1928. G a s e o u s currents, materials carried by.- Drying apparatus of the kind in which material is conveyed in contact with heat - transmitting surfaces by a gaseous medium in which it is entrained is provided with means for maintaining the medium in close contact with the surfaces throughout its passage. Fine coal &c. is charged through a tube b<1> into a gas current produced by a fan a and forced through drying-tubes k disposed in a steam-heated casing and formed with spiral grooves or ribs which compel the gas current to move in close contact with the tubes. The gas current together with its entrained coal passes into the cyclone separator g. Specifications 286,743 and 294,289 are referred to.
Patent GB-454488-A (GB)
Title: Improvements in or relating to adjustable lens systems
IPC: G02B13/00
Filed: 1935-03-01
Abstract: 454,488. Spectacle lenses; sight - - testing apparatus. DARTMOUTH COLLEGE, TRUSTEES OF, Hanover, New Hampshire, U.S.A. March 1, 1935, No. 6522. Convention date, March 2, 1934. Drawings to Specification. [Class 97 (i)] An adjustable lens system for use in sight testing apparatus of the kind described in Specification 431,705, or for correcting visual defects of the kind described in Specification 412,081, comprises two lenses separated by an air space of adjustable length, the focal lengths of the lenses being such that varying the separation between them alters the magnification produced by the system without substantially affecting the position of the image in relation to the object. When uniform magnification in all meridians is required the surfaces of the lenses are spherical, and when magnification is to be effected only in a particular meridian, some or all of the surfaces are cylindrical. The system is preferably such that a virtual image is produced in the plane of the object, so that the " vergence power is zero. For use in sight-testing apparatus of the above-mentioned kind, the lenses are mounted in holders, one of which is fixed and the other is movable along the axis of the system. When cylindrical lenses are used they are mounted so as to be rotatable about the axis of the system to enable magnification to be effected in any meridian. One of the lenses may be rotatable about an axis at right angles to the axis of the system to enable the lenses to be brought closer together at one edge than at the other, so that an asymmetrical distortion of the image is effected. The mathematical considerations from whch the focal lengths, and curvatures of the surfaces, of the lenses are determined are fully set out in the Specification.
Patent GB-230992-A (GB)
Title: Improvements in barometric pressure indicating instruments
IPC: G01L19/08
Filed: 1924-03-14
Abstract: 230,992. Spinney, R. D. March 14, 1924. Index hands and pointers.-Relates to instruments of the type provided with a friction controlled pointer for indicating the direction of change of pressure, which pointer is carried on or operated by the main lever and moves between stops, and comprises a friction brake having one member adjustably attached to the frame and the other member attached to the pointer so that the movement of one part of the latter is delayed when the main lever moves, causing one end of the pointer to show an advanced position relative to the main lever. In one form the direction pointer c is pivoted to the main lever b and moves between stops h. This pointer carries a friction pad f which bears lightly against a friction disc i. The friction of the pad f against the disc i causes the lower end of the pointer to lag behind the lever and the other end to advance. In a second form, the pointer c is pivoted to a supplementary lever which carries the brake pad. A dial is clamped to the supplementary lever and the pointer moves between stops on the dial. The pad engages a friction disc on a spindle which may be turned by a milled knob and gear wheel to restore the pointer to zero. In a third form, the pointer is pivoted to the main lever and is fitted with a little pulley wheel over which moves a cord pass in to two balanced weights one of which moves in oil.
Patent GB-1278205-A (GB)
Title: Smoke detecting device
Inventor: BUCKLEY NORMAN IAN
IPC: G01N21/25
Filed: 1970-02-11
Abstract: 1278205 Smoke detector SHORROCK DEVELOPMENTS Ltd 19 April 1971 [11 Feb 1970] 6619/70 Heading G1A A smoke detector comprises a lamp Q 1  radiating a beam of visible or infrared light across a space in which the presence of smoke is to be detected, a photo-cell P 1  located to receive light diffused by the smoke but not light direct from the beam, an oscillator 1 flashing the lamp Q on and off at a predetermined rate, and a phase detector 5 connected to receive signals both from the oscillator 1 and from the photo-cell P1 the phase detector operating an alarm when both signals are present and in phase. In an embodiment, Fig.1, the output of the phase detector is fed to an integrating circuit 6, which has a variable time constant that is set so as to suppress background or false signals. The output of the integrator is connected to a power amplifier 7 which switches on a lamp Q 2  when a smoke alarm signal is received for a time greater than the selected period of the integrator 6. In order to ensure that an alarm is given if the lamp Q 1  breaks, or, to compensate for any diminution of its light input, a second photo-cell P 2  is placed directly in the path of the beam. The output of the photo-cell P 2  is taken to an amplifier detector 8 which switches on a lamp Q 3  if the pulses are discontinued, or if the intensity of illumination falls below a predetermined value. Any decreasing output of lamp Q 1  is compensated by taking the decreasing amplifier detector output to a variable feedback signal generator 9 which applies its decreasing output to the power amplifier 7 and thus increases the gain of the power amplifier 7 and thereby maintains the overall sensitivity of the smoke detector. The smoke detector can be tested to see if it is functioning correctly by including an extra lamp in series with Q 1  but which is normally short circuited. The extra lamp being located so as to illuminate the photo-cell P 1 . A manually operated test button is provided so as to switch on this test lamp, and thus, on receipt by the photo-cell of signals due to the test lamp, the alarm Q 2  is operated.
Patent GB-963355-A (GB)
Title: Weed-combating agents
IPC: C09B1/36
Filed: 1963-02-19
Abstract: Compositions useful for selective weed killing in beet fields, comprise a mixture of (1) a salt, ester or amide of an aryl allophanic acid, e.g. 1,3-diphenyl-5,5-dimethyl-biuret and (2) a carbamate of the general formula <FORM:0963355/A5-A6/1> in which X is an alkyl radical or a halogen atom, n is 1, 2 or 3 and R is an aliphatic radical, e.g. CIPC or 3-methyl phenyl-but-3-yn-1-yl carbamate.  Specification 819,853 is referred to.
Patent GB-1041461-A (GB)
Title: Improvements in or relating to metallic-vapour discharge lamps
Inventor: CLARKE MAURICE GEORGE
IPC: H01J9/34
Filed: 1963-02-19
Abstract: 1,041,461. Metal-vapour lamps. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 28, 1964 [Feb. 19, 1963], No. 6688/63. Heading H1D. A metal vapour discharge lamp, e.g. containing sodium and mercury vapours and argon or xenon, has a tubular envelope of translucent alumina closed at each end by an alumina endcap. Alumina tube 11 (Fig. 1, not shown) is mounted on stiff lead wires 7 and 9 within an evacuated glass envelope 1, the alumina end caps 13 of tube 11 each having a central tapered aperture for the receipt of the tapered shank of a molybdenum electrode lead which supports an emissive tungsten helix (Fig. 2, not shown). The end caps may be shaped as in Fig. 12 to ensure, during operation, a lower temperature for the seal 77, 78; alternatively, a loose fitting alumina plug may be mounted on the cap end of the electrode (Fig. 11, not shown). The electrode leads are sealed through the end-caps by coating with calcium oxide and heating, and the end caps to the tube 11 either by coating with calcium aluminate and heating, or, without coating, by heating to a higher temperature. The electrodes may, alternatively, extend through the wall of tube 11; a starting probe may be included adjacent one of the electrodes; and outer envelope 1 may be dispersed with by grafting on to the end caps protective sleeves for the electrode leads. The lamp is manufactured by mounting it in a bell jar connected to a vacuum pump and argon supply and resting on a base plate through which pass a plurality of water-cooled plungers which permit the manipulation of the end caps relative to the tube 11, and the traversal along the length of the tube of an electric resistance heater for degassing the tube, and sealing the end-caps thereto, while argon at a pressure of 20 mm. mercury is flowing through the bell jar (Figs. 3 to 7, not shown). Before the tube is sealed, the cup of sodium 73, Fig. 10, is moved into it and the sodium distilled off; cup 73 is then disengaged from hook 72, and the radially resilient end of tube 71 lowered to pass over, grip, and raise the mercury-containing funnel 74, the lower end of which is drawn to a capillary, the mercury thereafter being blown out through the capillary into tube 11 by admitting a burst of inert gas through the hollow plunger 70. The tube 11 may be held either vertically or horizontally in the bell jar, the two end caps being sealed on simultaneously in the latter case.
Patent GB-110120-A (GB)
Title: An Improved Blower for Domestic Fires.
Inventor: LINNELL GEORGE TURNER
IPC: F24B1/185
Filed: 1917-05-11
Abstract: 110,120. Linnell, G. T. May 11, 1917. Blowers or draw-plates.-A blower for domestic fire-places consists of a sheet of metal of such a width as to leave open spaces at the sides, provided with a knob f attached thereto but heatinsulated therefrom, and with extensions or prongs b for engagement with the top bar of the grate. The knob is preferably attached by a bridge-piece g faced or packed with asbestos as shown in Fig. 3.
Patent GB-429994-A (GB)
Title: Weaving loom with change shuttle boxes at either side and automatic bobbin or shuttle replenishment
IPC: D03D45/34
Filed: 1935-03-04
Abstract: 429,994. Looms with automatic weftreplenishment. SCHWABE, K., 27, ul. 3go Maja, Bielitz-Bielsko, Poland. March 4, 1935, No. 6760. Convention date, March 3, 1934. [Class 142 (ii)] Relates to weft-replenishment in looms having change-boxes at each side. When weft failure is indicated by feeler mechanism on the left hand side of the loom, the picker 49 mounted on a swinging picking spindle, is moved backwardly so that the incoming shuttle passes through a compartment of the change-box 51 and enters an auxiliary shuttle-box 42 on the lay. After weft replenishment, the shuttle is picked from the auxiliary shuttle box and passes into the change-box. The picker is then moved into operative position. As described, the weft feeler is adapted to close a switch 1 to drive an electric motor 2 geared to cams for stopping the loom, displacing the picking spindle, effecting the bobbin or shuttle change, operating the auxiliary picking stick 41, and re-starting the loom.
Patent GB-535546-A (GB)
Title: Improvements in or relating to weaving looms
IPC: D03C1/00
Filed: 1940-04-15
Abstract: 535,546. Loom shedding mechanism. MATTERSON, W. April 15, 1940, No. 6795. [Class 142 (i)] The heddles are operated by levers 5 pivoted at 8 and carrying rollers 6 in cam grooves 7 in discs 1 freely rotating on a shaft 2. Selected discs 1 are rotated by sliding pawls 11 which are positioned by lags 23 on a pattern chain. The bar 13 carrying the pawls 11 is oscillated about the shaft 2 by levers 12, links 22, and levers 21 which carry rollers 20 engaging grooved cams 19 fixed on the shaft
Patent GB-275507-A (GB)
Title: Improved automatic safety-device for preventing railway accidents
IPC: B61L3/04
Filed: 1927-03-11
Abstract: 275,507. Grebehem, H. March 11, 1927. Track apparatus for stopping trains.-A rim a secured to a wheel of the locomotive has radially disposed bolts b protruded from the rim by springs c. One end of a cranked lever f bears against the inner end of the corresponding bolt under the action of a spring g, the other end of the lever being connected to a plug valve h slidable in a pipe i which it normally closes. The bolts are driven inwards under danger conditions by passage of the rim over a ramp-plate o which is raised to operative position in conjunction with the signal, and the valves h are thus operated to allow passage of steam through the pipes i. Steam is supplied through a pipe n to a casing k from which it passes through the radial valvecontrolled pipes i to a common annular pipe m, and thence through radial pipes l, central casing k<1>, and pipe n<1> to the brakes, which are thereby applied
Patent GB-1170324-A (GB)
Title: Dropping Arrangement for Loads Mounted on a Pallet in an Aircraft
IPC: B64D1/10
Filed: 1967-02-13
Abstract: 1,170,324. Discharging from aircraft. VEREINIGTE FLUGTECHNISCHE WERKE G.m.b.H. 13 Feb., 1967 [11 Feb., 1966], No. 6871/67. Heading F3C. A dropping arrangement for loads mounted on a pallet 67 in an aircraft comprises a track, a guide extending along each side of the track and for each guide a shaft 2 rotatably mounted at the side of the pallet and actuated by the pilot or by the pull of an auxiliary parachute. Upon a predetermined rotation of a shaft 2 locking devices, mounted adjacent the respective guide, are disengaged from recesses in the pallet 67. In one embodiment (Figs. 8, 9, 10, not shown) the pilot rotates the shaft(s) through a draw rod having a lost motion connection with a lever. The lever is further connected to a disc or quadrant which is joined to a further lever, fast with the shaft, by a cable. The auxiliary parachute connection comprises draw straps a loop at the end of each of which co-operates with another lever of the shaft 2, the loop being guided in a slot during rotation of the lever and disengaging the lever at the end of its rotary movement (Figs. 1, 2, 3, not shown). In a further embodiment the pilot rotates each shaft 2 by initiating the rotation of a second shaft 44, the shafts 2, 44 being connected by a cam and cam follower assembly of a worm drive transmission 43 which also, through a cam action, controls a switch 59 to isolate the shaft motor 45 on suitable rotation of shaft 2. Each transmission 43 can be actuated in a special sequence from a switch box 60. The locking devices each comprise a quick-acting clamping lever 15 which is linked to the rotatable shaft 2 and which, in the locking position of the shaft 2, also co-operates with apertures in a guide rail fast with the aircraft to hold the clamping harness of the pallets (see especially Figs. 4, 5, 6, 7, not shown). Each pallet may be connected to the arrangement manually (Fig. 11, not shown). The load or cargo parachute 68 is attached to each pallet 67 by ropes 69, the rip cord being guided along a cable 71 fixed to the aircraft.
Patent GB-252646-A (GB)
Title: Improvements in the dyeing of cellulose ester artificial silks
IPC: C09B69/00
Filed: 1924-11-15
Abstract: 252,646. British Alizarine Co., Ltd., and Barnard, C. M. Nov. 15, 1924. Anthraquinone thioglycollic acids.-1-Amino- 2-mercapto-anthraquinone is condensed with chloracetic acid in presence of alkali and glucose; 1-amino-2 : 4-dibromanthraquinone is boiled with sodium sulphide and condensed with chloracetic acid; the products dye acetyl cellulose in yellow and bluish-red shades respectively. Axo dyes.-An azo dye is obtained by condensing p-nitrophenol with chloracetic acid, reducing, diazotizing, and coupling with #-naphthol.
Patent GB-808371-A (GB)
Title: Improvements in or relating to shuttles for weaving
IPC: D03J5/00
Filed: 1955-03-09
Abstract: 808,371. Loom shuttles. McGREGOR & BALFOUR Ltd., and McGREGOR, D. D. June 11, 1956 [March 9, 1955], No. 6902/55. Class 142(2) A shuttle for use with solid cops has the sides of the cop cavity grooved, at least some of the grooves being of the form shown in Figs. 2 or 3. If tufts of bristles are provided, they are secured to the bottom part of each groove.
Patent GB-1128915-A (GB)
Title: Commutator segments for dynamo-electric machines
Inventor: BOWCOTT ROY PRICE
IPC: H01R43/06
Filed: 1965-02-18
Abstract: 1,128,915. Making commutators. JOSEPH LUCAS (INDUSTRIES) Ltd. 11 Feb., 1966 [18 Feb., 1965], No. 6995/65. Heading B3A. [Also in Division H2] In a commutator segment, of the kind comprising a pair of parts 7a, 8a and having a pair of arms 11a, 12a upstanding from the brush contacting surface 9a, a third part 15 engages with the arms 11a,12a for the attachment of the ends of the armature conductors. The part 15 can be in the form of a closed loop or an open loop with the ends of the loop trapped between the arms. The segment is punched from a strip (6a, Fig. 3, not shown). Commutator construction.-The segments may be separated by insulating material and secured together by a commutator cone. The finished commutator is then dip-soldered to hold the parts together and the brush contacting surface 9a is machined.