baber/WOPTO huggingface dataset:
Patent GB-611533-A (GB)
Title: An improved device for artificially producing speech sounds by electrical means
IPC: G10L25/00
Filed: 1946-02-28
Abstract: 611,533. Secret transmission. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Feb. 28, 1946, No. 6243. Convention date, June 20, 1941. [Class 40 (iv)] In means for artificially producing speech wherein there is produced a continuous spectrum of oscillation or a train of impulses whose frequency corresponds to the fundamental frequency if the latter is present in the sound to be produced, the input from these means is supplied to a number of resonant circuits whose tuning is respectively controlled in accordance with the formants of the speech to be produced and voltages derived from these resonant circuits are separately amplified, and are combined in an amplitude ratio corresponding to the amplitude ratio of the formants. As shown, current from a microphone M passes through band-pass filters F1 ... F4 to analysers A1 to A4 and also direct to an analyser A5. The latter produces a control voltage proportional to the fundamental frequency of the sound to be transmitted. This controls an oscillator G to produce oscillations of a similar frequency in the receiver. In the case of sounds of no fundamental frequency, the absence of control voltage stops generator G, but starts generator R which gives a continuous frequency spectrum. Analysers A1 ... A4 determine the frequency and amplitude of the maximum amplitude vibration in their band and transmit voltages corresponding thereto to corresponding resonant circuits R1 ... R4 and amplifiers V ... V4. The oscillation from generators G or R pass through the resonator and amplifier pairs in parallel to the loudspeaker T. The analyser A5 is shown in Fig. 3. The oscillations are fed to a valve 4, which may actually be a chain of valves in cascade. A condenser 5 shunts part of the grid resistance in this valve with the result that the greater amplitudes in the band submitted receive greater amplification and practically pure vibrations of the frequency of the greatest amplitude are emitted. These are transformed into rectangular oscillations by valve 8 and then are transformed into voltage pulses by a condenser 11 discharged by a triggered tube 10. The analysers A ... A4 in addition have a transformer between valves 4 and 8 which is connected to a rectifier network to emit a controlling voltage proportional to the amplitude of the oscillations. Fig. 7 shows the circuit of R1 and V1. Oscillations from generators G or R are connected to terminals 208 and 209 and the frequency controlling voltage is fed to terminals 205 and 206. The valve circuit 202 is thus tuned and the modified oscillations. pass from the third winding of transformer 207 to amplifier V1. An attenuating network 216 is interposed which is controlled by the amplitude indicating voltage supplied to terminals 210 and 211. In a modification, sound is produced entirely artificially by supplying a receiving unit O with controlling voltages from a series of potentiometers controlled by manual keys.
Patent GB-536712-A (GB)
Title: Improvements in or relating to carding engines
IPC: D01G15/36
Filed: 1940-04-06
Abstract: 536,712. Carding-engines. BROOKS & DOXEY, Ltd., and DRABBLE, A. J. April 6, 1940, No. 6245. [Class 120 (i)] The fancy roller of a carding engine is driven from the cylinder through two V-belts and a reversing gear or gears which give the necessary reversal in direction of rotation to the fancy roller relative to the cylinder and the necessary increase in speed without employing a large pulley on the cylinder shaft. As shown a grooved pulley N on the cylinder shaft 1 is connected by a V-belt M to a grooved pulley I on a shaft J in a gear box A, the shaft J carrying a helical gear F meshing with a helical gear G on a shaft J<SP>1</SP> carrying a grooved pulley K connected by a V- belt P with a grooved pulley R on the fancy roller shaft 2. The pulleys I, K are arranged at opposite sides of the gear box A which is carried by a screwed shaft C adjustable in a bracket B pivotally mounted on a bracket B<SP>1</SP> fixed to the engine frame : by adjusting the shaft C in the bearing B the tension of the two belts is simultaneously adjusted while the pivotal mounting of the bearing allows the correct distribution of the tension between the belts.
Patent GB-515409-A (GB)
Title: Vibrating beam for making concrete facings
IPC: E01C19/38
Filed: 1938-02-28
Abstract: 515,409. Ramming road and like surfaces. SOC. ANON. DITE LES TRAVAUX VIBRES. Feb. 28, 1938, No. 6257. Void. Convention date, Feb. 26, 1937. [Class 107] A beam 1, Fig. 1, for facing concrete road and like surfaces is subjected to vibratory pressure by pneumatic, hydraulic or mechanical apparatus 12, Fig. 2, which serves at the same time for raising and lowering the beam. The operative surface of the beam carries a number of cells 2, yieldingly supported on the beam and surfaced with expanded metal coarse and fine mesh facings 3, 3<1>, Fig. 4. The beam 1 is shown universally jointed at 9, 10 to the piston rod 11 of the pneumatic vibrating apparatus and can be rotated about a. vertical axis. The apparatus is traversed laterally on a bridge 17 having end carriages running on longitudinal: rails 34, 28 at the sides of the road. The'bridge is hinged at 33 to the carriage on one side and adjusted on the other side by a jack 25. Hand gears 29, 37 serve for tracking the bridge along the rails. Power is supplied by an' internal combustion engine 35 driving an electric alternator 36, connected to motors for driving compressors 15 the pressure supply from which to the apparatus 12 is controlled by a handle 23.
Patent GB-1160242-A (GB)
Title: Improvements in Cartons
Inventor: MACKINTOSH GEORGE MCARDLE
IPC: B65D5/66
Filed: 1966-02-12
Abstract: 1,160,242. Carton blank. WILLIAM THYNE Ltd. 10 Feb., 1967 [12 Feb., 1966], No. 6310/66. Heading B8P. A single piece carton blank comprises a lid panel 13<SP>1</SP> with tuck-in flap 16 and a front wall panel comprising outer and inner wall portions 14, 17 foldable together to define a pocket for the tuck-in flap 16
Patent GB-1175861-A (GB)
Title: Distortable ring for a pressure vessel connector
Inventor: MERCIER JACQUES HENRI
IPC: F15B1/22
Filed: 1967-02-09
Abstract: 1,175,861. Moulding sealing rings. OLAER PATENT CO. 9 Feb., 1967 [9 Feb., 1966], No. 6325/67. Heading B5A. [Also in Divisions F1 and F2] A pipe connector 16, having a check valve 22 and for introducing liquid into the hydraulic chamber 15 of an oleo-pneumatic pressure accumulator 10, is sealed in the latter by means of a distortable ring 18 which comprises a continuous annulus of elastomeric material 25 and an annular frame formed by at least two independent rigid segments 26, 27, the elastomeric annulus, which is joined to the segments, being formed with slits 29 which prolong the gaps 28 between the segments so that the ring 18 can be folded about a diametrical axis and passed through the opening 11 for receiving the connector 16, and can be unfolded within the accumulator. The ring 18 is located between the interior of the container 10 and a flange 17 on the connector 16 which is associated with a sealing ring 20 and a locking nut 21. The slits 29 in the annulus of elastomeric material 25 can be formed by means of saw cuts passing through the gaps 28. In a moulding process, Fig. 5, partitions 30, of greater height than the rigid segments 26, 27, are arranged in a mould 31 to provide the gaps 28 and slits 29 after moulding. A cover 32 also provides a core for the mould.
Patent GB-1531865-A (GB)
Title: Device for mowing and subsequently crushing crop
IPC: A01D82/00
Filed: 1976-02-18
Abstract: 1531865 Mower/conditioners MULTINORM BV 18 Feb 1976 [28 Feb 1975] 06379/76 Heading A1F A mower/conditioner is provided with cutters 5 and a pair of crushing rollers 6, 7 mounted so as to be relatively deflectable to accommodate variation in crop density; at least one of the rollers is hollow and driven by a shaft pivotally connected therein. In the embodiment the upper roller 7 is rotatably mounted between two parallel side plates 18 which pivot about pins 17 against the action of springs 19 which bias the two rollers together. The drive shaft 33 extends within the roller 7 and is pivotally coupled at one end to a hub 24 by which an end of the roller 7 is mounted on a respective plate 18, and at its other end it passes through the open other end of the roller 7 and respective plate 18 and is pivotally coupled to a stub shaft 35 from the gearbox 8. The device may be self powered or may be adapted (as shown) to be towed.
Patent GB-805138-A (GB)
Title: Indicating instruments for aircraft
IPC: G01C23/00
Filed: 1956-03-01
Abstract: 805,138. Aircraft instruments. LEAR Inc. March 1, 1956 [March 28, 1955], No. 6396/56. Class 4. An aircraft instrument for indicating roll and course and for providing an indication of angle of bank with respect to course so that an aircraft may be brought asymptotically on to a new course comprises a housing 10, a compass card 12, and a needle 14 in the shape of an aircraft silhouette. Card 12 is supported on a hollow shaft 16 to which gear 18 is fixed, meshing with a gear 20 driven by a synchro 24 coupled to directional gyro 26. Needle 14 is mounted on a shaft 28 driven by synchro 36 controlled by attitude gyro 38. With aircraft level needle 14 is aligned with fixed marks 40, 41<SP>1</SP> and fin 42 with the bearing indication on card 12 which indicates the heading of the aircraft. To fly on a new course, say from 360 to 330 degrees, the aircraft is banked to the left and as the aircraft turns gyro 26 and synchro 24 cause card 12 to rotate in synchronization. When fin 42 closes on reading 330 degrees the pilot reduces roll attitude and levels out while maintaining fin 42 in line with reading 330 degrees on card 12. Roll-limit marker points 80, 82 are provided. The embodiment of Fig. 4 provides, in addition, an indication of pitch attitude. Needle 14<SP>1</SP> controlled by synchro 36 and attitude gyro 38 indicates roll attitude ; card 12 having one part only exposed by an arcuate cutout in mask 41, shows heading under the control of synchro 24 and gyro 26 as before. A further index 50, having a nose portion 58 to be aligned with a mark 56 on mask 41<SP>1</SP>, is mounted on a shaft 54 controlled by a synchro 62 which is energized also from attitude gyro 38. A fixed heading marker point 72 and fixed roll-limit marks are provided on mask 41<SP>1</SP>. U.S.A. Specification 2,321,606 is referred to. Reference has been directed by the Comptroller to Specification 771,017.
Patent GB-1139374-A (GB)
Title: Improvements in and relating to a harrow
IPC: A01B19/06
Filed: 1967-02-10
Abstract: 1,139,374. Agricultural implements. LANDBOUWWERKTUIGEN -EN MACHINEFABRIEK H. VISSERS N.V. 10 Feb., 1967 [28 Feb., 1966 (2)], No. 6476/67. Heading A1B. A reciprocating harrow comprises beams 28a, 29a mounted on rearwardly extending pivoted arms 25a, 26a which are oscillated by means of a crank mechanism 30, so that adjacent arms oscillate in opposite directions. As shown a long and short arm are mounted on each pivot point and the beams 27a, 27b are formed as open frames so that the short arms can pass between them. Alternate long and short arms are connected by coupling rods 35, 36.
Patent GB-1436104-A (GB)
Title: Isolation enclosure members
IPC: A61B19/00
Filed: 1972-02-11
Abstract: 1436104 Isolation chambers NATIONAL RESEARCH DEVELOPMENT CORP 11 May 1973 [11 Feb 1972 28 Nov 1972] 6611/72 Heading A5R A device such as a glove 8 or a conduit (12), Fig. 6, (not shown) is located in a flexible sleeve 4 attached to an isolation chamber 3 by inserting a device having a relatively rigid circumferential region into the sleeve 4 which is closed at one end 4', engaging the circumferential region of the device with a region of the sleeve 4 having a circumference less than said circumeferential region of the device so as to stretch the sleeve 4 and form a seal between them, and making an opening in the sleeve 4 between the seal and the closed end 4'. A transfer chamber 1 is connected to the isolation chamber 3 which is made from transparent plastics film and has an air filter 6 connected to an inlet port 7. A pair of sleeves with gloves 4 is provided for manipulation of said device inside the isolation chamber 3. In use, the glove 8 has a sealing ring placed inside its cuff, and is pushed into a sleeve 4 up to a line 9 where the sleeve 4 engages the sealing ring and is secured thereto using tape or an elastic ring. The end of the sleeve 4 is then severed. A damaged glove 8 may be similarly replaced by a new glove 8 from within the body 3. The conduit (12) may be passed through a sleeve 4, by pushing the conduit (12) from within until it engages the sleeve 4, cutting the end of the sleeve 4, pushing the conduit (12) through the open end, and securing the sleeve 4 to the conduit (12) using adhesive tape (18).
Patent GB-770654-A (GB)
Title: Improvements relating to percussive tools
IPC: B25D11/12
Filed: 1954-03-08
Abstract: 770,654. Percussive tools. KANGO ELECTRIC HAMMERS, Ltd., and BADCOCK, D. N. W. June 1, 1955 [March 8, 1954]. No. 6667/54. Class 124  A percussive drill, having movable co-operating members in a sleeve, one being a driver and the other a striker and having an air chamber formed between their opposing ends, has at least one longitudinal groove, in the exterior surface of the driver or striker 'and at least one annular groove in the interior surface of a cylinder which has imperforate side walls and encloses or constitutes part of the coacting striker or driver to control the flow of air into or out of the air chamber. ' As shown, a piston 1, driven by a prime mover, e.g. an electric motor, forming the driver co-operates with a freely moving cylinder 3 forming the striker. The cylinder has an annular groove 4 which coacts with longitudinal grooves 5 in the piston to produce a pressure in an air chamber 6 equal to atmospheric pressure, twice during each cycle. A .piston ring 7 may be fitted to the lower end of the piston and the groove 4 may be discontinuous In a modification Fig. 5 (not shown) the cylinder may be fixed, the driver being a driven piston and the striker a free piston, the cylinder having two annular grooves coacting with the pistons: In a further modification Fig. 8 (not shown) the driver is a driven cylinder and the striker a free piston.
Patent GB-399398-A (GB)
Title: Arrangement for generating high-frequency potentials of straight line wave form
IPC: H03K6/02
Filed: 1933-03-06
Abstract: 399,398. Converting. RADIOAKT.- GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, and SCHLESINGER, K., 39, Friedrich. strasse, Friedrichshagen, both in Berlin. March 6, 1933, No. 6686. Convention date, March 7, 1932. [Class 38 (ii).] To obtain high frequencies of 120,000 cycles or more per second in a relaxation oscillation generator the capacity of the total arrangement is made as small as possible. The Figure shows a charging valve 1 with the anode connection brought out separately and the valve having a large amplification factor, a discharge lamp 2 with small electrodes and a relatively high gas pressure, and an intermediate amplifier 3 with a small input capacity and the connection between the points 4, 5, 6 as short as possible. The grid of the intermediate frequency valve is preferably separately brought out of the envelope.
Patent GB-556785-A (GB)
Title: An improved folding table
IPC: A47B3/02
Filed: 1942-05-18
Abstract: 556,785. Tables. GUNNER, F. W., and MINTY, E. L. May 18, 1942, No. 6687. [Class 52 (iii)] A folding cross-leg table has a top divided into recesses B, C, D to accommodate writing pads memorandum tablets, a clock, instruments, &c. and provided with hinged lids E, E<2> adapted to rest on sliding frames M<1> when opened so as to form extensions of the top. The upper ends of one pair of legs are connected by a rail slidable in runners beneath the top. A strap handle T may be provided on the legs O.
Patent GB-982539-A (GB)
Title: Improvements relating to d.c. supply filter circuit arrangements
Inventor: TILY GEOFFREY JOHN
IPC: H02M1/14
Filed: 1963-02-20
Abstract: 982,539. Smoothing D.C. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. Jan. 24, 1964 [Feb. 20, 1963], No. 6782/63. Heading H2F. A direct current smoothing circuit comprising an inductor L and capacitor C includes controllable rectifier means shunting the inductor and rendered conductive by a sensing circuit on the occasion of a transient surge at the output terminals. As shown, a thyristor SOR1 shunts the inductor L and has a resistor R3 and Zener diode ZD1 in its gate-cathode circuit. The sensing circuit comprises a diode D2, resistor R1 and a parallel RC circuit R2, C1 in series across the output terminals, the junction of R1 and C1 being connected to the gate through R3. In operation, when the current I falls rapidly due to changing load conditions the current through L cannot change rapidly and current is diverted to the capacitor C causing an increase in output voltage. The capacitor C1 which has also charged to the normal peak voltage tends to follow the increase in voltage on overshoot; however, by virtue of the time constant or the circuit R1, C1, the rise of voltage on C1 is delayed. As a consequence a forward bias is applied to gate cathode circuit, firing the thyristor before the overshoot has risen by more than a few volts. A circulating current flows through L and SCR1, and the excess voltage is limited to the forward voltage drop across SCR1 which may be only a few volts. The Zener diode ZD1 and resistor R3 protect the thyristor on switching on. In modifications D2 and R1 may be omitted since a similar path exists through the gate-cathode circuit and R3; an additional diode may be connected in series with ZD1; a transistor amplifier may be used in the sensing circuit; and the thyristor may be replaced by a transistor and diode in series.
Patent GB-550520-A (GB)
Title: Improvements in lids for use with bottles, jars, containers and the like
IPC: B65D39/02
Filed: 1942-05-20
Abstract: 550,520. Stoppers or lids for bottles &c. FARNELL, E. A. May 20, 1942, No. 6834. [Class 125 (iii)] A lid for use with a bottle jar or like container comprises a circular disc A and a part B scored at C ... G to form a finger grip and secured by adhesive at its semi-cir. cular ends to the disc A. In use the central flange E is arranged below the rim of the bottle to prevent it being damaged.
Patent GB-918594-A (GB)
Title: Improvements relating to shaft packing glands for steam turbines
Inventor: WHITEHOUSE REGINALD GEORGE
IPC: F01D11/02
Filed: 1961-02-24
Abstract: 918,594. Stuffing-box substitutes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 13, 1962 [Feb. 24, 1961], No. 6894/61. Class 122 (5). Stationary labyrinth rings 3 are mounted around a turbine shaft 2 in an annular housing 4 which is supported on an exterior easing 1 by means of spigots 8 extending axially from each end of the casing and engaging annular grooves 10 provided in radial flanges 9 on the ends of the housing. The rings 3 are segmental and are retained in T-section slots in the housing backed by leaf-springs 6 secured against rotation by screws 7. The housing consists of half-rings which are held against axial movement or rotation by screws 12 engaging in slots in the casing. Locating screws provided on each side of the radial joints between the half-housings are screwed tight against the casing to bring the flanges hard on the spigot. Packing shims 11 are inserted between the spigots and the bottom of the grooves 10 to effect axial adjustment of the housing with respect to the shaft.
Patent GB-968260-A (GB)
Title: Apparatus for controlling the speed, direction of progression and steering of a vehice, chiefly a tractor provided with a double transmission gearing
IPC: G21D3/08
Filed: 1963-02-20
Abstract: 968,260. Differential driving and steering. P. P. RICHARD. Feb. 20, 1963 [March 6 1962], No. 6904/63. Heading B7H The independently driven endless tracks or wheel sets on the two sides of a vehicle are controlled by an arrangement including a pair of arcuate slideways 19, 20 mounted to pivot on a common axis or shaft 21 and each engaged by a slider at one end 17, 18 of a connecting-rod 11, 12 of length equal to the effective radius of curvature of the slideways, the other end 22, 23 of the connecting rod controlling the drive to one of the tracks or wheel sets. In Fig. 1 the connecting rods 11, 12 control the output of hydraulic pumps 101, 102, which may be driven by the same or separate engines, connected to motors 103, 104 geared to the individual tracks or wheel sets. The control arrangement, shown diagrammatically in Fig. 7, is such that downward movement of the ends 17, 18 of the connecting rods provides forward motion of the vehicle and upward movement reverse motion and the relationship between the track or wheel speeds is determined by the relative distances of the ends 17, 18 from the axis of shaft 21 (Figs. 9 to 12, not shown). The output of a pump and motor is zero when the corresponding connecting rod end is on the axis of shaft 21 or when the slideways are as shown in full lines in Fig. 7. In the embodiment shown in Figs. 13, 14 a lever 37 is secured to shaft 21 to rotate the attached slideways 26, 27 in which move sliders 28, 29 pivoted to the ends 17, 18 of the connecting rods 11, 12. The sliders have teeth 60, 61 by which they are movable along the slideways by pinions 56, 57 loosely mounted on shaft 21 and connected by gear trains to pinions 44, 45 rigid with the shaft 21, the gear trains being such that the pairs of pinions 44, 56 and 45, 57 rotate in unison when shaft 21 is rotated. Each slider is moved along its slideway by movement of lever 50 or 51 while maintaining handle 37 stationary when frame 48 or 49 moves shaft 46 or 47 with the gears 40, 42 or 41, 43 about the stationary pinion 44 or 45 and hence rotates the pinion engaging the corresponding slider. In modifications the lower ends of the connecting rods may move in straight guides and certain of the pinions may be replaced by chain or cable mechanisms or pivoted levers.
Patent GB-177680-A (GB)
Title: Improvements in type line transferring mechanism of typographical machines
IPC: B41B7/00
Filed: 1921-03-02
Abstract: 177,680. Druitt, P. W., and Gilpin, W. R. March 2,1921. Galley-mechanism for single-type composing and casting machines. In means for producing two or more justified sections within the width of a column in machines such as described in Specification 11870/13, the galley shaft being in two parts connected by a clutch as described in Specification 9747 /12, the single fixed cam for controlling the clutch is replaced by a series of cams slidably mounted on an actuating-shaft. The clutch-actuating lever d is engaged by one or other of a series of cams or ratchet-wheels f<1> having different numbers of teeth and slidably mounted on a shaft f, which is intermittingly rctated by a pawl g and a cam a<o> on the driving- section a of the galley-shaft. The cams are shifted bv means of a fork provided with an actuating-knob and a detent. An index is provided for setting the cams to initial position.