baber/WOPTO huggingface dataset:
Patent GB-635888-A (GB)
Title: An improvement in or relating to seat mountings or suspensions
IPC: B60N2/54
Filed: 1948-10-15
Abstract: 635,888. Seat suspensions. BROWN TRACTORS, Ltd., D., and ASHFIELD, H. E. Oct. 15, 1948, No. 26824. [Class 52 (i)] A suspension for a tractor seat a comprises an inverted U-shaped bracket b, b<SP>1</SP> secured to the seat, a U-shaped bracket c, c<SP>1</SP> secured to the vehicle frame, a pair of parallel links e pivoted at each side to the two brackets, friction dampers h arranged on the pivots of the links e some or all of the dampers h being fitted with spring washers i to vary the degree of friction according to the weight of the driver, a cross bar f connecting the upstanding legs c<SP>1</SP> of the bracket c, c<SP>1</SP> and one or more spiral springs g arranged between the brackets b, b<SP>1</SP> and c, c<SP>1</SP>. A stop is provided which may be cushioned.
Patent GB-135469-A (GB)
Title: Improvements in or relating to Breech Loading Guns.
Inventor: ASBURY DORSEY FROST
IPC: F41A3/26
Filed: 1919-10-31
Abstract: 135,469. Asbury, D. F. Nov. 16, 1918, [Convention date]. Ordnance breech mechanism; machine guns.- Consists in a means for utilizing the energy stored in a longitudinally-sliding and rotatable breechblock or bolt during unlocking to effect automatically the breech opening, closing, and locking movements. Figs. 1 and 4 are respectively a sectional elevation and sectional plan of a recoiling- barrel gun with the breech closed. Fig. 7 is a cross-section on the line 7-7, Fig. 1, and Fig. 12 is a perspective view of the rear end of the gun. The breech-bolt B is locked in the closing position by two lugs 22 which engage with corresponding lugs in the barrel extension 11. Rotation of the breech-bolt in either direction serves to unlock the bolt, and, in the form shown, automatic unlocking is effected in one direction and manual operation, by a handle 48, in the opposite direction. The locking rotation is in the same direction as the automatic unlocking rotation in both cases. The enlarged rear portion of the breechbolt is provided with an unlocking cam 21 on its underside adapted to coact with a roller 40 carried by a detachable plate 34 fixed to the non-recoiling cradle 10. The roller spindle 39 may be inserted in any one of a series of holes 36-38 in the plate so that the point in the recoil stroke at which unlocking occurs is regulable. The breech-bolt also carries a roller 47 which is constantly engaged in a continuous cam-groove D in the barrel ex. tension. The cam-groove D comprises longitudinal portions 45, 46, one in each side wall of the barrel extension 11, connected by semicircular transverse portions at each end, the transition curves being as shown at 41, 42, 43, Figs. 1 and 12. The unlocking rotation of the breech-bolt causes the roller 47 to travel down the curve 41, by which the rotary movement is converted into a rearward opening movement of the breech-bolt. At the rear end of the groove 45 the roller travels up the curve 42 and through the semicircular bridge portion of the cam-groove, thereby stopping the rearward motion of the bolt and converting it into rotary motion again. The energy stored in the bolt is such that when the roller meets the curve 43 the bolt is pushed forwards again, the roller meanwhile traversing the groove 46 until the last transition curve is encountered, when the locking rotation is imparted to the bolt. A tappet 50 on the handle 48 engages the first roller 40 when the breech-bolt is locked and prevents automatic unlocking until the barrel and breech-bolt have recoiled a certain distance after firing, but does not prevent hand operation in the opposite direction. The ejector C has two lateral projections, as shown in Fig. 4, which engage grooves extending half way around the head of the breech-bolt. The rear groove 26 has forwardly enlarged portions 27 at its ends which permit the ejector to be thrown forwards when it strikes a fixed stop 31 at the end of the breech opening movement. Specification 134.530 is referred to.
Patent GB-386722-A (GB)
Title: Improvements in or relating to selector mechanism for variable speed gearing
IPC: F16H63/46
Filed: 1931-09-26
Abstract: 386,722. Variable speed gearing. CROWSLEY, P. S., Mill Hill Engineering Works, Edenbridge, Kent. Sept. 26, 1931, No. 26908. [Class 80 (ii).] When the main clutch pedal of a vehicle is depressed, a shaft 28 is rotated, and the motion is communicated by rods 26 and arms 8 to a hollow slotted shaft 7, on the lateral independent halves of which are mounted two pairs of loose cranks 20, and thence to a pair of gear selector forks 2. The gear selection is effected by means of a handle 17 and dial 18. A cam plate 16 is connected to the handle through bevel wheels. On the inner surface of each of the cranks 20 is an arcuate slot 21, Fig. 4, adapted to engage with a sliding key or pin 22 on an inner shaft 9 also in two parts. A rod 12 slidable in brackets 6 is connected at its ends to the rods 9 by plates 11. The rod 12 is also in two parts each of which bears a pin engaging a groove in the plate 16. Movement of the handle 17 reciprocates a half-rod 12 and thence one of the shafts 9 and a pin 22, so as to determine which slot and pin shall engage, and thus, when the clutch pedal is depressed, which fork shall be moved and in which direction. The arrangement described is for use with a box giving four forward speeds, or three forward and a reverse speed. If the box has a reverse speed in addition to four forward speeds a modified arrangement of forks is used in which two arms project above the pivot 4 and three below, one of the latter being used to engage reverse speed.
Patent GB-425919-A (GB)
Title: Improvements in and relating to thermionic valves
IPC: H01J21/02
Filed: 1933-09-30
Abstract: 425,919. Thermionic valves. EDWARDS, J. H., 35, St. James Avenue, Ealing, London. Sept. 30, 1933, No. 26952. [Class 39 (i)] The anode of a valve having a helically-wound control grid consists of one or more plates arranged with their surfaces parallel to the electron stream ; the spacing between the plates and the control grid may be very small. As shown the anode consists of sections of corrugated metal strip 5 arranged edgewise and connected with an inner grid structure 4 surrounding the control grid. Specification 406,659 is referred to.
Patent GB-289493-A (GB)
Title: Manufacture of metal derivatives of ª‰-diketones
IPC: C07C49/12
Filed: 1926-10-28
Abstract: 289,493. British Dyestuffs Corporation, Ltd., and Coffey, S. Oct. 28, 1926. Normal metallic derivatives of #-diketones are prepared by treating a #-diketone of the type R.CO.CHR<1>.CO.R<11>, containing more than five carbon atoms, in which R and R<11> represent hydrocarbon radicles and R<1> is a hydrocarbon radicle or hydrogen, with aluminium, iron, nickel, cobalt, manganese, chromium, zinc, thallium, cerium or thorium, or an oxide, hydroxide or salt thereof. Alternatively an alkali metal derivative of the, #-diketone is treated with a salt of the metal. The preparation of aluminium and ferric benzoylacetones is excluded and the process is confined to the production of " normal " derivatives, i.e. those in which the only atoms or groups attached to the metal are the diketone residues. The products, particularly those containing no aromatic radicles, are useful as antidetonants and as dyestuff and other intermediates. Examples are given of the preparation of aluminium propionylacetone, gamma-ethylacetylacetone, and -gammabutylacetylacetone; ferric propionylacetone, butyrylacetone, -gamma-methylacetylacetone, -gamma-ethylacetylacetone and gamma-butyl acetylacetone; nickelous propionylacetone, gamma-methylacetylacetone, and acetylmesityloxide; cobaltous propionylacetone and butyrylacetone; cobaltic propionylacetone and gamma-methylacetylacetone; manganic benzoylacetone and propionylacetone; chromium propionylacetone, benzoylacetone, gamma-ethylacetylacetone and gamma-butylacetylacetone; zinc, thallium, cerium and thorium propionylacetone; thorium butyrylacetone and benzoylacetone. The Provisional Specification states that the hydrocarbon radicles may contain substituent groups such as halogen, methoxyl, &c.
Patent GB-1276280-A (GB)
Title: Multiple ratio power transmission mechanism
IPC: F16H61/02
Filed: 1971-04-19
Abstract: 1276280 Variable speed gear control FORD MOTOR CO Ltd 19 April 1971 [21 May 1970] 27038/71 Heading F2D A variable speed gear including planetary  elements controlled by hydraulic brake and clutch servos 50, 76, 84, 92 (e.g. a Simpson train) selectively connectable to a pressure circuit by distributer valves 148, 154, 158 has the pressure in its pressure circuit controlled by a regulator valve 98 with a valve chamber connected between the circuit and a source 42 of hydraulic pressure, a valve element in the valve 98 controlling the communication between the source and the circuit, there being a pressure area 122 on the element connected to the circuit via a valve 136 controlled electrically in response to output speed. The valve element may also react to engine torque (from a throttle control valve 20) and to the engagement of a forward ratio (servo 50).
Patent GB-498192-A (GB)
Title: Improvements in and relating to radio-controlled devices
IPC: H03G1/02
Filed: 1937-10-06
Abstract: 498,192. Electric signalling systems. SANTUCCI, G. Oct. 6, 1937, Nos. 27135, 27136, and 27137. Convention dates, Oct. 6, 1936, June 5, 1937, and' Sept. 8, 1937. [Class 40 (i)] [Also in Group XL] A desired control operation is effected by wireless, by means of an intermittently-operative radiorelay which is responsive to the occurrence of modulation of a given frequency and duration in a received signal. Fig. 1 shows two receivers R1, R2 deriving their supply voltages from a mains network L, R1 acting as a radio-relay to control the supply to the receiver proper R2 on reception of a carrier wave to which they are both tuned. Control is effected by a relay r1, closing contacts c1, c2, the former providing a maintaining circuit across an interrupter r0 rotated continuously by an eddy current motor in order to reduce the working time of the relay R1. R1 may consist of a screen-grid high-frequency amplifier coupled to a reactively-coupled screen-grid detector in whose anode circuit the relay r1 is connected, Fig. 2 (not shown). The interrupter r0 may operate in the anode circuits of the valves of R1 instead of interrupting the power supply thereto, Figs. 5 and 6 (not shown). Figs. 3 and 4 show detailed circuits for the receiver-relay R1. In Fig. 3 the eddy current motor BD drives the interrupter K thus periodically energizing R1 through contacts c0. On receipt of a given signal, relay r1 operates contacts cl, c2 and thus closes the supply circuit of R2 at a-a. Fig. 4 shows an embodiment of receiver R1 arranged with two relays r2, r4 coupled to the output circuit and responsive to different modulation frequencies of the same carrier wave. The interrupter K applies the supply periodically through contact c0 as before. If during these periods the receiver carrier is modulated for more than a certain minimum time by either of the frequencies f2, f3 to which relays r2, r3 are responsive, contact c4 or c5 will be closed by r2 or r3 and the supply is then maintained for the duration of the signal. The cam K also periodically closes contact c<1>0; the circuit of either magnet coil r4 or r5 will then be completed depending on whether contact c4 or c5 has been closed by its corresponding relay. Coils r4, r5 act on a magnetic lever A which closes or opens the supply circuit of a radio receiver. Instead of selective control by modulation frequencies, different carrier frequencies may be employed, the radio relay R1 and receiver R2 being tunable to different wavelengths by means of condensers successively inserted by contacts carried by the same rotating member as the cam K, or r0 of Fig. 1, the latter being locked to stop when it closes the tuning circuit of R1 corresponding to the frequency of the incoming signal. Instead of controlling the supply circuit of a radio receiver, the switch may control any other local operating circuit. The invention is applicable to communication of alarm signals, for darkening or extinguishing lights and control of reception of wireless signals from a central point.
Patent GB-164656-A (GB)
Title: Improvements in adjustable planes for aeroplanes
IPC: B64C3/48
Filed: 1920-09-25
Abstract: 164,656. Schenkel, G. Sept. 25, 1920. Planes, construction of; regulating altitude.- Planes of variable camber are formed by making - the covering and ribs in overlapping pieces, fitting the ribs 2 with stays 3 - - 6 hinged at 21, 22, 23 and to the ribs, and mounting the ribs on the spars 1, 1<a> in circular and oblong guiding frames 2<a>, 7. The mechanism for adjusting the camber consists of a series of movable rods 8 - - 11, passing through guiding-members 12 - - 15 mounted between the four sets of stays and adapted to be raised by levers 16 - - 19 on rotatable shafts 20.
Patent GB-204906-A (GB)
Title: Improvements in heels for boots and shoes and like footwear
IPC: A43B21/00
Filed: 1922-10-10
Abstract: 204,906. Brown, L., and Macintosh & Co., Ltd., C. Oct. 10, 1922. Heels.-A heel consists of a casing a of vulcanized rubber, gutta-percha, or balata, or a mixture of these substances, or of ordinary commercial vulcanite or ebonite, and a core b of sawdust, shavings, or similar loose material mixed with glue, gum, rubber, or other binding material. Reference has been directed by the Comptroller to Specification 133,932.
Patent GB-1517045-A (GB)
Title: Pump
IPC: F04D29/42
Filed: 1975-06-27
Abstract: 1517045 Toy boats MUBUCHI MOTOR KK 27 June 1975 [2 July 1974] 27385/75 Heading A6S [Also in Divisions B7 and Fl] A battery-driven pump which is attached to a toy boat 30 by means of a suction cup 19 draws in water through an inlet 4a and discharges it as a propulsive jet through a nozzle 31. The driving motor and the batteries are housed in respective compartments 2, 15. The pump casing 3 can be turned about the longitudinal axis to change the position of the nozzle 31 relative to the boat and thereby vary the direction of movement of the boat.
Patent GB-586510-A (GB)
Title: An improved carrier for smoke generators
IPC: B63G13/02
Filed: 1939-10-06
Abstract: 586,510. Smoke generators. BARKER, S. N. (Paine, H. Scott-.). Oct. 6, 1939, No. 27405. [Class 81 (i)] A carrier for smoke generators for use in boats comprises an open topped container 10 arranged for mounting on the outside of the hull and having an inlet feed pipe 9 and an overflow opening 26 for a supply of water in which the smoke generator stands or floats. The container may be provided with a lid 21 having a central opening 24 above which a cowl-like covering 25 extends in a fore-and-aft direction. Perforated plates 19 and angle guides 20 are provided to locate the generator in the vessel. The container may be secured to the transom of the boat by a pin 15. The overflow 26 may be supplemented by holes 28.
Patent GB-1011101-A (GB)
Title: Mechanical stripper drive
IPC: B66C1/42
Filed: 1962-07-17
Abstract: 1,011,101. Ingot strippers. DEMAG A.G. July 17, 1962 [Aug. 1, 1961], No. 27496/62. Heading B3F. [Also in Division F2] In a mechanical stripper drive a two-speed planet gear is provided between a driving motor 7 and a shaft 9 which drives a ram (Fig. 1, not shown), and the gear comprises two sunring planet trains 15, 17 in series, the integral ring gears of which may be held by a brake 6 for low ratio, whilst the planet carrier 13 of the first train fast with a sun gear 14 of the second train may be held by a brake 6 for high speed ratio. The first train is completed by a sun gear 11 connected through a universal joint 10 to the motor 7 and the second train is completed by a planet carrier 18 fast with the shaft 9. The planet gear and motor 7 are mounted on a plate 1 axially positioned with respect to a plate 2 by springs (Fig. 1, not shown). The stripper ram is driven under no-load conditions at the higher speed and when the ram contacts an ingot the gear ratio is automatically changed to the lower ratio by means, not described, in response to either the increased motor torque or the spring tension. For gripping an ingot the direction of the motor 7 is reversed to drive the shaft 9 in the opposite direction which then acts through the ram on tongs (Fig. 1, not shown).
Patent GB-1323404-A (GB)
Title: Method for the production of 1,1,3-trialkoxy-2-cyano propanes
IPC: C07C253/00
Filed: 1971-06-14
Abstract: 1323404 1,1,3 - trialkoxy - 2 - cyanopropane TAKEDA YAKUHIN KOGYO KK 14 June 1971 [15 June 1970] 27675/71 Heading C2C A 1,1,3-trialkoxy-2-cyanopropane may be prepared by reacting a chlorocyanohydrocarbon of Formula (I) wherein one of X and Y represents a hydrogen atom and the other represents a chlorine atom, or X and Y together form a bond between the carbon atom at the 1-position and that at the 2-position, with an alkali metal alcoholate or with an alcoholic alkali metal hydroxide.
Patent GB-964967-A (GB)
Title: Improvements in and relating to telegraph circuits
IPC: H04L25/22
Filed: 1960-08-10
Abstract: 964,967. Telegraphy. BUDAVOX BUDAPESTI HIRASTECHNIKAL VALLALAT. Aug. 10, 1960 [Aug. 10, 1959], No. 27745/60. Heading H4P. The invention provides a singledouble current 2-4 wire converter connected between a subscriber and the exchange. The circuit which is connected to receive signals from the exchange comprises a polarized relay, by way of which signals are passed to the subscriber, and a slow-acting self-holding relay which responds only to calling and clearing signals. Fig. 1 shows the rest condition of an arrangement for connection of a single current subscriber at M to double current exchange at L, K. When the subscriber calls the exchange he increases the current in winding AI so that a reverses to supply a calling potential to the exchange. This replies by reversing the current in lines L, whereupon slow-acting relay T closes t4 and contact b of polarized relay B reverses. Relay T is held energized by the diode bridge and T45 arrangement. The subscriber can now transmit to the exchange by changing the level of the single current signal on lines M, with consequent change in double current contacts a. When the exchange calls the subscriber, the exchange reverses the potential on lines L. The subscriber is alerted by the reversal of the current in lines M due to changeover in contacts, similar to that described above; a does not change in this case. A second embodiment, Fig. 2 (not shown), is used in conjunction with an automatic exchange. The arrangement is substantially similar to that described above but includee means whereby the circuit can be cleared by ths remote subscriber, and other means for receiving a brief acknowledging signal from the exchange upon a connection being set up. The arrangement shown in Fig. 3 allows the subscriber to make a local record of the signals he transmits. Line H carries the single current signals to be transmitted via relay S. The local recorder is connected to line J which receives from the distant subscriber, and via the exchange, the signals transmitted to that subscriber.
Patent GB-1142493-A (GB)
Title: Improvements in or relating to radar display apparatus
Inventor: SKINNER PETER
IPC: G01S7/22
Filed: 1966-06-21
Abstract: 1,142,493. Radar; cathode-ray tube deflection circuits; transistor amplifying circuits. DECCA Ltd. 14 June, 1967 [21 June, 1966], No. 27745/66. Headings H3T, H4D and H4T. A radar plan-position indicator (P.P.I.) cathode-ray tube (C.R.T.) is known in which a rotating deflection coil produces the radial deflection and orthogonal fixed coils, concentric with the rotating coil, are added, e.g., for display off-centring in true motion displays; the coils are surrounded with a magnetic screen to reduce reluctance but time-base voltages are coupled into the fixed coils. If transistor amplifiers are used to feed the fixed coils, the low impedance of the amplifiers loads the rotating coil and a low output impedance amplifier having a high inductance choke in series between the amplifier output and the coil has been used. Such a choke does not affect the slowly changing currents in true motion offcentring but is deleterious for fixed coils affording high speed interscan marker traces. According to the invention, for each fixed coil, negative feed-back from the current through the coil is applied to the amplifier input to give a high amplifier output impedance. In the embodiment, one pair of fixed deflection coils 12 is in series with a resistor 31, the voltage across which is applied as negative feed-back via resistors 32, 33. Input shift signals, e.g. for symbol display or line markers &c. are applied via resistors 34, 35, 36. Resistor 37 is adjusted to give zero deflection for zero input. Resistor 38 is set to give a low standing current to output transistors 25, 26 to remove cross-over distortion. Resistor 33 provides for deflection sensitivity adjustment. Zener diodes 41, 42 limit the voltage developed across coil 12 so as to decrease recovery time.
Patent GB-323237-A (GB)
Title: Improvements in or relating to wireless signalling apparatus
IPC: H04B1/16
Filed: 1928-09-27
Abstract: 323,237. Marconi, G. Sept. 27, 1928. Local disturbances, eliminating or limiting ; directive signalling; aerials. - A system of screening wires K is erected between a shortwave receiving aerial RA and a source of interfering radiation, such as cars passing along a road RD. The wires K may be rods in tune with the incoming waves, or untuned and longer than one wavelength. They are preferably earthed and may be carried right over the road to form a tunnel-like structure, the individual wires being earthed at both ends. The receiving aerial consists of a plurality of vertical wires A in combination with a plurality of reflector wires R, the system having a horizontal polar curve DC.
Patent GB-726195-A (GB)
Title: An improved means for securing a door knob or handle on the end of an associated spindle
Inventor: LEDBETTER JOHN CHARLES
IPC: E05B3/10
Filed: 1952-11-05
Abstract: 726,195. Door handles. SKELDINGS, Ltd.,. and ATLAS BRASSFOUNDRY (BIRMING- HAM), Ltd. Nov. 3, 1953 [Nov. 5, 1952], No. 27805/52. Class 44. [Also in Group XXIV] A means for securing a door knob or handle on the end of a spindle of the kind which is divided longitudinally into two complementary parts 4, 5 comprises, at one end of one part 4 of the spindle, an open-ended longitudinally extending slot 4a which is adapted to receive transversely a hardened screw-pin 8 which passes radially through an aperture in the shank of the knob or handle so as to cut a thread in the walls of the slot and impinge at its inner end against the complementary part 5 of the spindle. The screw pin 8 splays apart the spindle parts 4, 5 and also the legs of the slot to tightly grip the walls of an aperture in the knob.
Patent GB-278175-A (GB)
Abstract: 278,175. Blakeborough, R. A., Tart, H., and Lindsay, J. Sept. 29,1926. Travelling-band strainers.-A strainer of the type comprising an endless chain of screen members is enclosed in a casing a having flanged inlet and outlet openings a<1>, a<2> for inclusion in a pipe line. The screen members e<4> are fixed to chains passing round wheels c<1> d<1>. The pivot pins e' of the chain links have antifriction rollers e<2> which are guided by vertical strips g provided on the inside of the casing. End covers a<3>, a<4> carry curved sealing plates f, f<1> which ensure that liquid passes through both stretches of the strainer on its way from the inlet a<1> to the outlet a<2>. If the covers are removed and one pivot pin released, the upper chain wheels, chains, and strainer panels may be removed as a unit. The upper chain wheels may be driven by chain gearing and reducing spur gearing from the shaft m of an electric motor. The panels are cleansed by outward passage of liquid into a box o, the outlet valve p of which is opened intermittently by a cam r on the motor shaft. A second box to which cleaning liquid under pressure is supplied may be situated within the strainer opposite the box o.