baber/WOPTO huggingface dataset:
Patent GB-1352644-A (GB)
Title: Plough beam with a plough bottom
IPC: A01B61/02
Filed: 1972-05-25
Abstract: 1352644 Yieldable mountings for ploughs KVERNELANDS FABRIKK AS 25 May 1972 [1 Feb 1972] 24723/72 Heading A1B A universal coupling whereby a plough share can deflect in any necessary direction on encountering an obstacle comprises a linkage between a main frame and a tool beam which allows such movement and which is biased by a spring mechanism into the soil working position. In a first embodiment, (Fig. 2) a hollow tool beam 3 is connected to a plate 10 having recesses formed therein which receive the spherical heads of projections on a similar plate 9. A rigid rod 13 is pivotally mounted on the plate 9 with universal movement and extends through the beam 3 to an element 6 in which the rear end of the beam 3 slides. A pair of leaf springs 8 are connected between the element 6 and brackets 5 mounted on the beam 3. On encountering an obstacle as shown in pecked outline in Fig. 2, the plate 10 will pivot with respect to plate 9, on the bearings afforded by the projections and corresponding recesses and consequently cause the beam 3 to slide axially with respect to the rod 13 and the springs 8 to buckle whereby the linkage is urged back to the working position once the obstacle is passed. In an alternative embodiment (Fig. 5) the rod 13 is pivotally connected to an arm 18, itself pivoted at point 19 to the beam 3. A lever 21 is pivoted to the arm 18 and is connected to a leaf spring 17 whose other end is joined to the beam 3 by bracket 23. The lever 21 bears against an abutment 24 which is moved by a bolt 25 to adjust the biasing force of the springs 17. A stationary bracket 15; forming a guide along which the edge 16 of plate 10 moves, may be provided to ensure the correct return of the plate 10 with respect to plate 9. The arrangement is suitable for single, multi furrow or two-way reversible ploughs (see Fig. 1 not shown) and is convertible to form a rigid connection by inserting a bolt on the end of the rod 13 so that it is effectively secured to the beam 3 (see Fig. 6 not shown)
Patent GB-683726-A (GB)
Title: Automatic volume control device
Inventor: BEVOORT CORNELIS
IPC: H04B3/06
Filed: 1950-10-10
Abstract: 683,726. Automatic volume control systems. STAATSBEDRIJF DER POSTERIJEN, TELEGRAFIE EN TELEFONIE. Oct. 10, 1950 [Oct. 11, 1949], No. 24768/50. Class 38 (iv). In a system for automatically controlling the output of an amplifier supplied with audio frequency through a variable attenuator network one or other of two electrical contacts are operated if the mean output level is above or below predetermined limits to cause a motor to adjust the variable attenuator in the appropriate sense to main the amplifier output between the predetermined limits, the motor operating only if an electrical contact has operated by virtue of the peak input to the attenuator being above a predetermined minimum. In Fig. 1 a telephone operator SH is connected by a two-wire line 1, 2 through a balancing transformer HC, associated with an artificial line K, to an outgoing channel 5, 6, e.g. modulating a radio transmitter connected at 14 and to an incoming channel 3, 4, e.g. fed with the output of a radio receiver connected at 15. A noise-limiter G and an amplifier A<SP>3</SP> are associated with the incoming channel while a peak-clipper B and amplifiers A<SP>1</SP>, A<SP>2</SP> are associated with the outgoing channel. To avoid loss of quality due to undue operation of peak-clipper B the input to it is maintained between predetermined limits by automatic control of a shunt motor M adjusting the attenuation of a variable attenuator P in accordance with the mean output level of amplifier A<SP>1</SP>. This output is measured by a thermionic valve circuit VGII which, when the mean output level is above or below the predetermined limits energizes or de-energizes a relay MA or MI the contacts ma or mi of which close to run motor M in the appropriate direction to increase or decrease attenuation. A resistance automatically inserted in the field circuit (not shown) of motor M when increasing attenuation causes the motor to run faster than when decreasing attenuation. Motor M can only operate when the peak input to attenuator P is above a predetermined minimum. This input is measured by a thermionic valve circuit VGI which, when the input is above the predetermined minimum, energizes a relay RL, the contacts pl of which close in the motor circuit. Contacts min or max are cam-operated by motor M when the latter reaches its extreme position in either direction to prevent further operation in that direction and to operate visual and other alarms (not shown). Manual switches (not shown) are provided for disengaging automatic control and for operating motor M manually. The control circuit of motor M and the thermionic valve circuits for measuring peak input and mean output levels are described with reference to Figs. 2, 3, 4 (not shown). Operational levels specified in dB are given. Specifications 246,274, [Class 38 (iv)], and 631,151 are referred to.
Patent GB-1039385-A (GB)
Title: Method for processing oil and water mixtures in the form of sludge
IPC: C10M175/04
Filed: 1963-06-21
Abstract: A method of processing oil-and-water mixtures containing iron hydroxide and/or aluminium hydroxide in the form of a neutral or alkaline sludge (for example, used cutting oils) comprises acidifying the sludge in a reactor and heating the acidified sludge with stirring to break the oil-water emulsion, transferring the contents of the reactor to a separator, and withdrawing separately from one another the dirt substances, acidulous liquor and separated oil from the separator.  The acid added may be 10% hydrochloric acid and may comprise recycled acidulous liquor from the final stage.
Patent GB-986800-A (GB)
Title: Relay valve assembly and fluid operated position control device
Inventor: LUND JAN FREDRIK
IPC: F16K31/128
Filed: 1961-07-10
Abstract: 986,800. Fluid-pressure servomotor control systems. STANDARD TELEFON OG KABELFABRIK A. S. July 10,1961 [July 9, 1960],No. 24893/61. Heading G3P. In a pneumatic or hydraulic position control servo-system e.g.a valve positioner, the relay valve assembly comprises a baffle-nozzle pilot valve 16, 15 and a spool supply-exhaust valve 6, 7. The baffle is carried by a member 4 carrying a coil 2 in an air gap of a magnetic circuit comprising an iron ring,a permanent magnet and a support. The coil 2 receives signals from a measuring unit. The nozzle 15 is mounted on a cylindrical member 6 located in the bore of the support 5c. The spool valve 7 is loaded by an adjustable spring 8 and cooperation with supply, exhaust and output ports 11, 28, 17 Fig. 3b, in the cylindrical member 6, the said ports being connected to passages in the support 5c. The port 11 is connected by a surface groove to balancing port 39 and via a restriction 12 to a port 13 leading to the chamber 14 above the spool 7. The port 28 is connected by a surface groove to the space around the nozzle 15 and to a port 40 leading to the space below the spool 7. The cylindrical member 6 is easily removable if the grooves require to be cleaned. The output fluid pressure signal is transmitted to a diaphragm motor which actuates a regulating valve against spring pressure. A mechanical feedback linkage including levers and the spring 27 extends between the valve stem and the baffle support 4. The assembly is located in a housing and a diaphragm member isolates the feedback linkage . from the fluid.
Patent GB-474006-A (GB)
Title: Improvements in or relating to accordions and like musical instruments
IPC: G10D11/00
Filed: 1936-09-12
Abstract: 474,006. Accordions. GALANTI, R. Sept. 12, 1936, No. 24934. Convention date, Nov. 15, 1935. [Class 88 (ii)] An accordion is held collapsed by two flexible metal-fabric straps 50 each carrying a press-fastener member on its outer end, the straps when released being withdrawn into the interior and wound on reels 59, by springs 57. One end of the bass strap 66 is adjustable by a pair of nuts and screws. A detachable resonance chamber or sounding- board 18 on the bass end of the instrument is freely mounted thereon to allow for variations due to temperature and humidity, by a lug 25 engaging an aperture in a bracket 28, and a spring-pressed friction catch 39.
Patent GB-1346948-A (GB)
Title: Non-magnetic war mine suitable for rapid laying by sowing
IPC: F42C15/40
Filed: 1971-04-19
Abstract: 1346948 Mines BRIND 19 April 1971 [16 March 1970] 24984/71 Addition to 1039018 Heading F3A A non-magnetic mine comprises a mine as claimed in any one of claims 1-5 of Specification 1,039,018, in which the chamber which contains the explosive charge is provided internally with an impervious diaphragm and bounding a space which communicates through an orifice a 7  to atmosphere, which diaphragm can expand and contract in order to maintain the chamber at a pressure substantially equal to that of the atmosphere during sudden changes in temperature. The creation of negative pressure in the explosive chamber, as a result of a sudden drop in temperature, is thus avoided and the possibility of accidental actuation through this cause is thereby obviated.
Patent GB-900852-A (GB)
Title: Improvements relating to electric motors
Inventor: CARPENTER KENNETH
IPC: H02K17/30
Filed: 1958-08-05
Abstract: 900,852. Induction motors. HOOVER Ltd. March 20, 1959 [Aug. 5, 1958], No. 25121/58. Class 35. A single-phase induction motor 10 has a choke 40 surrounding motor shaft 13, and connected to a switch in the motor circuit to enable the motor to be run at two speeds. The stator is of the split-phase capacitor-run type, disclosed in Specification 796,099. Choke 40 is held in position about the shaft 13 by a mild steel cover 41 of L-section fitting over it to form part of its magnetic circuit which is completed by the adjacent part of the motor casing. Cover 41 has four teeth 42 held under tongues 43 struck out from the casing, the cover being released by rotation. In a modification the coil is of a larger diameter, being secured to the casing by a ring of U-shaped cross-section (Fig. 5, not shown). In a further modification the choke is fixed to an end of the main windings by adhesive tape, a ring of insulating material being placed between choke and windings. Without the choke in circuit the motor runs at a relatively high speed and when the choke is switched in the speed is reduced.
Patent GB-169452-A (GB)
Title: Improvements in or relating to type casting and machines therefor
IPC: B41B11/88
Filed: 1921-09-22
Abstract: 169,452. Mergenthaler Linotype Co., (Assignees of Rogers, J. R.). Sept. 24, 1920, [Convention date]. Metal pots and pumps.-In order to enable type-bars of large size to be cast satisfactorily, the metal is injected into the mould by two successively - acting mechanicallygenerated impelling-forces of different intensities. In the preferred form, the metal-pot is provided with two successively - acting plungers E, F, working in separate cylinders. The main plunger E, which acts first, is operated in the usual manner by a lever E<3> and a spring E<12> under the control of a cam E<9>, which engages a roller E<8> curried by an arm E<6> of the lever. The second plunger F is operated by a lever F<3> and a spring F<4>, and is held out of action until the plunger E has nearly completed its working stroke by a pivoted detent F<7>, which engages a lug F<10> on the lever F<3>. The detent is tripped by the engagement of the cam E<9> with an arm F<13>, which is adjustably secured to the detent by screws F<12>. The lever F<3> is raised to normal position by a projection F<6> on the lever E'. The plunger F exerts greater pressure than the plunger E owing to its smaller size and to the abrupt action of the spring F<4>. The plunger F is locked out of action when type-bars of ordinary size are being cast. The two plungers may be in different pots or different compartments of the same pot, or may be fitted one within the other. The plunger F may be replaced by other pressure-producing means.
Patent GB-826799-A (GB)
Title: An electromagnetic amplifying inverter
IPC: H03F9/00
Filed: 1957-08-09
Abstract: 826,799. Induction galvariometers. VYZKUMNY A ZKUSEBNI LETECKY USTAV. Aug. 9, 1957 [Aug. 11, 1956], No. 25187/57. Class 40 (9). In an amplifier of the galvanometer type, the D.C. voltage 13 to be amplified is applied to a moving coil 3 suspended by ferromagnetic wires 1 in a magnetic field, the wires being encircled by output coils 2 and connected to an A.C. supply 11. Electrical connection between the upper and lower wires is provided by the coil former 4. The magnetic field is established by a core 7 and by a cylindrical permanent magnet 8 to which is fitted conductive end caps 5 insulated from each other by washers 6, the enclosed space 12 being filled with a cooling liquid which permits high currents to be passed through the ferromagnetic wires. In operation, deflection of the coil due to a D.C. input imparts torsional movement to the ferromagnetic wires, and a component of the alternating field established by current in the wires induces an output voltage in the coils 2 which is proportional to the torsional movement and therefore the magnitude of the D.C. input.
Patent GB-917561-A (GB)
Title: Method of manufacturing heat-treated impact tools used in conjunction with impact hammers, and impact tools manufactured by this method
IPC: B21K5/14
Filed: 1959-07-22
Abstract: 917,561. Making engineers' tools; riveting snaps. LINDEN, E. Z. July 22, 1959 [July 30, 1958], No. 25196/59. Classes 83 (2) and 83 (4). A method of manufacturing impact tools, e.g. rivet sets for riveting hammers, wherein the tool is machined to shape and thereafter heat treated is further characterized by subsequently removing the structurally deformed layer of the tool at least at those areas adjacent to changes in crosssection of the tool at which fracture of the tool is liable to occur in use thereof. In an embodiment the shank 1 of a rivet set having a shape as shown by the chain line 10 in the drawing is fine machined after being heat treated to the shape shown by the chain line 9 or undercut to provide a taper 5 and a fillet 7 merging tangentially into the top surface 8 of the die head 3 of the set. The groove 6 in the die head is also fine turned or ground to remove the structurally disturbed surface layer.
Patent GB-407367-A (GB)
Title: Improvements in or relating to the manufacture of aliphatic anhydrides
IPC: C07C51/56
Filed: 1932-09-09
Abstract: The production of aliphatic anhydrides by thermal treatment of the corresponding acids is effected in presence of a catalyst for the reaction such as a phosphoric acid, phosphate, tungstate, silicate or borate, and a compound which is a reduction product of the same catalyst or of a catalyst of the same type.  The catalysts are not reducible to metals under the conditions of the reaction.  Thus phosphates may be used with phosphites or hypophosphites of the same or other metals.  Carriers or filling materials may be employed such as pumice or silica gel, or the catalysts and their reduction products may be employed as sole or part constituents of molten baths which may comprise other materials that may or may not have catalytic action.  The acid vapour may be mixed with a reducing gas such as hydrogen, carbon monoxide, or water gas and both may be preheated. The reducing gas may be passed through the heated liquid acid as in Specification 304,156, [Class 2 (iii)].  The anhydride may be separated from the reaction products as described in Specifications 256,663, 279,916, 298,667, 303,772, 310,863, [all in Class 2 (iii)], and 354,199.  In examples, acetic acid is vaporized with or without the introduction of hydrogen or carbon monoxide, preheated to 500 DEG C. and led through a copper tube containing calcium phosphate and phosphite at 700 DEG  C. Specifications 289, 72, 336,960, [both in Class 2 (iii)], and 407,335 also are referred to.
Patent GB-684054-A (GB)
Title: Improvements in the manufacture of iron powder by the carbonyl process
IPC: C22B5/20
Filed: 1950-10-17
Abstract: In the carbonyl process for the production of iron powder the carbonyl vapour is fed into a decomposition chamber at a rate greater than that which produces particles of a size partly 5m  and partly greater, and a correspondingly greater amount of heat is supplied to decompose the increased throughput of carbonyl. The additional heat required is obtained by reducing the thickness of the chamber walls, or by using materials of high heat conductivity and not by increasing the temperature.  The carbonyl may be diluted with carbon monoxide and ammonia may also be present.  A throughput of 120 kgs. per hour at a temperature of 270 DEG C in a chamber 5 metres long by 1 metre diameter produces a powder 75 per cent of which is up to 3m  and 25 per cent between 3m  and 4m .  The temperature should not exceed 300 DEG C in the decomposition chamber under ordinary pressure.
Patent GB-1339967-A (GB)
Title: Brush for applying paint varnish lacquer and other fluent or  viscous materials
IPC: A46B7/04
Filed: 1971-04-19
Abstract: 1339967 Brushing pads H BRENNENSTUHL 19 April 1971 [26 March 1970 22 Sept 1970] 25339/71 Heading A4K [ Also in Division B4] In a brush having a foam plastics applicator 1 in place of bristles, the applicator is in the form of an envelope which is detachably secured to a blade 3, extending within the envelope, by a pair of opposed jaws 3', the upper part of the blade 3 being detachably secured in a widened part of the handle. The jaws may be formed on a part separate from the blade 3, the part (52) Figs. 3-5 (not shown) being held between the blade and the widened part of the handle.
Patent GB-429146-A (GB)
Title: Improvements in thermionic generators for producing high frequency and ultra high frequency oscillations
IPC: H03H7/38
Filed: 1934-09-03
Abstract: 429,146. Valve generating circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Sept. 3, 1934, No. 25344. Convention date, Sept. 6, 1933. [Class 40 (v)] The oscillatory circuit 6 is connected to the electrodes 2, 4 of an ultra high frequency oscillator through conductors 20, 8, 22, 10, the terminals of the valve being 12, 14. The length of the conductors is an odd number of 1/4 wavelengths and the invention resides in the provision of condensers 16, 18 to neutralize the capacity between electrodes 2, 4. The Specification shows that this is achieved when the reactance of the condensers equals the admittance of the inter-electrode capacity multiplied by the square of the wave resistance of the conductors. The oscillator may be of the magnetron type.
Patent GB-1339070-A (GB)
Title: Magnetic compasses
IPC: G01C17/30
Filed: 1971-04-19
Abstract: 1339070 Flux gate magnetic compasses SPERRY RAND CORP 19 April 1971 [1 April 1970] 25351/71 Heading G1N A magnetic compass system for e.g. an aircraft, comprises a flux gate compass 10 (Fig.1) fixed to the craft so that its 3-phase windings A, B, C are normally horizontal, for sensing the earth's horizontal magnetic field component, with one winding A parallel to the longitudinal axis of the craft, and is augmented by a normally vertical winding S whose output signal h v , representing the earth's vertical magnetic field component, is multiplied at 21 by the sine of the pitch angle 6 measured by a vertical gyro 20, to feed a D.C. signal back into winding A, and h v  is also multiplied at 22 by the sine of the roll angle # also measured by gyro 20, to feed a D.C. signal back into windings B, C, the feedback signals compensating for the modifications to the measuring signals in the flux gate windings A, B, C due to pitch and roll. The compensated flux gate signals are fed to a synchro-type receiver 14 for indicating the craft heading. With suitable choice of gain for the multipliers 21, 22, the compensation is correct over a predetermined range of latitudes for pitch and roll angles less than 10 degrees. The gain of the multipliers can be manually adjusted to correct for changes in latitude.
Patent GB-368229-A (GB)
Title: Improvements relating to high frequency receiving systems
Filed: 1930-08-26
Abstract: 368,229. Bowden mechanism. KOLSTER-BRANDES, Ltd., Cray Works, Sidcup, Kent.-(Assignees of Gillule, W. J. ; 762, Hopkinson Avenue, Brooklyn, New York, U.S.A.) Aug. 26, 1930, No. 25463. Convention date, Oct. 18, 1929. Void [Published under Sect. 91 of the Acts]. [Class 80(iii).] The tuning apparatus of a wireless set is connected to a remote control unit by a flexible connection 10 within a flexible housing 12. The connection 10 is connected to pulleys 8, 11 at each end, a spring 13 keeping the system taut. The pulley 11 has a pointer moving over a scale 23 and is operated by worm gear 15.
Patent GB-1199140-A (GB)
Title: Cyclopentenone Derivatives
IPC: C07C405/00
Filed: 1969-05-20
Abstract: 1,199,140. Cyclopentenone derivatives; organomagnesium compounds. SANKYO CO. Ltd. 20 May, 1969 [20 May, 1968 (2)], No. 25613/69. Headings C2C and C2J. Novel cyclopentenone derivatives of the formula wherein R is H, CH 3 - or CH 3 CH 2 - are prepared by reacting a 2-[R.OCO(CH 2 ) 6 ]-3-methoxy-2-cyclopentene-1-one with a Grignard reagent of the formula wherein X is halogen and A is tetrahydropyranyl or X-Mg-, followed by treatment with a mineral acid. 2 - (6 - Ethoxycarbonylhexyl) - 3 - methoxy - 2 - cyclopentene-1-one is obtained by reacting an etherol solution of diazomethane with 2-(6- ethoxycarbonyl - hexyl) - cyclopentane - 1,3- dione. 3 - Tetrahydropyranyloxyoct - 1 - ynylmagnesium bromide is made by reacting ethylmagnesium bromide and 3-tetrahydropyranyloxyoct-1-yne in tetrahydrofuran.
Patent GB-1336672-A (GB)
Title: Methods of epitaxially depositing a semiconductor compound
IPC: C30B11/12
Filed: 1971-04-19
Abstract: 1336672 Semi-conductors PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [2 April 1970] 25620/71 Heading C1A [Also in Division B1] In a method of growing a monocrystalline semi-conductor layer epitaxially on a substrate by the VLS method, in which temperature conditions set up initially are maintained constant throughout the process, a melt 56 is saturated with a vapour while it is held in a crucible 55 above the substrate 50, which is located in a temperature gradient G. On raising the rod 58, the melt falls on to the substrate, through a zone of higher temperature T 2 , thus obviating the need to provide a higher initial growth temperature and, by using a minimum volume of melt, causing minimal thermal disturbance. When the growth is complete, the boat 51 is inverted to spill the melt into vessel 59. The vapour which saturates the melt is supplied through tubes 60 and 62. In another form, the apparatus is of silica and a layer of GaAs is formed on a GaAs substrate, in the presence of AsCl 3  or AsH 3  in H 2 . The substrate may be etched, immediately prior to growth, with AsCl 3  or HCl in H 2  passing through a tube (10, Figs. 1 and 2, not shown). Mixed crystals e.g. GaAs x P 1-x  can be obtained by adjusting the partial vapour pressures of As or P to give the required proportions.
Patent GB-919176-A (GB)
Title: Magnetic materials and applications
IPC: C04B35/26
Filed: 1960-07-22
Abstract: 919,176. Valve oscillator circuits. STANDARD TELEPHONES & CABLES Ltd. July 22, 1960 [July 24, 1959], No. 25626/60. Drawings to Specification. Class 40 (6). [Also in Groups XXXV and XL (b)] A resonant circuit for an oscillator comprises an inductor (see Group XXXV) whose inductance varies with temperature in such a way as to compensate for the temperature variation of the associated capacitor. The inductor has a ferrite core whose coefficient of permeability is positive and constant between - 40‹ C. and +100‹ C., and is associated with a capacitor having a dielectric with a constant negative coefficient of permittivity, e.g. polystyrol.