baber/WOPTO huggingface dataset:
Patent GB-925787-A (GB)
Title: Hydrostatic regulator
Inventor: HESS PAUL
IPC: G05D7/01
Filed: 1962-03-07
Abstract: 925,787. Machine-tool details. HYDREL A.G. March 7, 1962, No. 8867/62. Class 83 (3). [Also in Group XXIX] A regulator for controlling the flow of fluid in a machine-tool hydraulic system comprises two variable throttle devices, one of which is variable in response to variations of liquid pressure in the system, and the other of which has an obturating disc having a cut-out portion rotatable relative to a liquid-flow opening to vary the flow through the opening. The throttle devices are disposed in a housing 1 between an inlet 2 and an outlet 3, the inlet leading to a chamber 4 containing the disc 18. The cut-away portion 19 of the disc co-operates with the opening 5 which leads to a bore 6 containing the piston 11 of the pressureresponsive throttle device. The piston is at one end subjected to the pressure in a space 9 connected by a passage 10 to the chamber 4 and at the other end subjected to the pressure in a space 15 connected by a passage 17 to the opening 5 and to the pressure of a spring 16. In operation, the disc 18 can be set manually or mechanically to provide a predetermined throttling effect at the opening 5 and the differential pressure across the opening acts on the piston to control the flow through an opening 12 leading to the outlet 13, the arrangement minimizing the effect of changes of pressure to maintain a constant pressure differential between the inlet and outlet. When the regulator is used to control a machine table or toolholder which, during setting or withdrawal, is required to move at high speed, the disc 18 may be raised against a spring to reduce its throttling effect, a stepped or wedge-shaped lever then being inserted beneath a knob 21 to retain the disc in its raised position.
Patent GB-1096533-A (GB)
Title: Discharge electrode frame for electrostatic dust extractors
IPC: B03C3/86
Filed: 1965-03-02
Abstract: 1,096,533. Electrostatic precipitators. DINGLERWERKE A.G. March 2, 1965 [March 4, 1964], No. 8871/65. Heading B2J. The discharge electrode frame for an electrostatic dust extractor is formed of two sets of tubes, the tubes 10 of the smaller set passing through the tubes 9 of the larger set and the discharge electrodes 12 being mounted in tension between the tubes of the larger set. The tubes may be assembled and welded at the place of use. The horizantal tubes may be of round or, as shown, of square crosssection with the discharge electrodes 12. being held offset from the centre line of the tubes by clamping devices 11, Fig. 3.
Patent GB-1442911-A (GB)
Title: Pivotal guard for a vehicle
IPC: B62D25/24
Filed: 1974-02-27
Abstract: 1442911 Pivoting radiator guards CAPERPILLAR TRACTOR CO 27 Feb 1974 [28 March 1973] 8875/74 Headings B7B and B7H [Also in Divisions E1 and F4] A vehicle is provided with a pivotable front guard 6 which mounts a heat exchanger 37, the arrangement being such the that guard and heat exchanger may be swung. down as a unit to facilitate maintenance access. In one arrangement Fig. 2, the guard includes a generally rectangular auxiliary frame 25 having a removable protective front grille and pivoted at 29 to the vehicle frame. The heat exchanger has top axd bottom tanks 38, 39 and a cellular core 40 and is mounted within the frame 25 by releasable and resilient mountings. A stop plate 36 which also serves as a lower guard member is provided on the frame 25 to limit the pivotal movement of the guard by contact with the vehicle frame. In another arrangement, Figs. 7, 11, the guard 47 is fitted to a bulldozer tractor having a first heat exchanger 65, for engine cooling, removably mounted to the vehicle frame and a second heat exchanger, for transmission lubricant cooling, comprising two separate exchangers 71, 72 mounted in the guard. The exchangers 71, 72 are arranged in spaced coplanar fashion and are separated by a central strut 94 on which a fan 105 is releasably mounted. Each exchanger is mounted resiliently in the guard frame between the central strut 94 and a respective side member 92, and 93, and may be swung out from the frame by releasing the mounting brackets at one side of the exchanger and pivoting about the brackets at the other side. In this arrangement the guard is pivotally connected by a yoke 84 to the bulldozer lift jack 83 so that after release of locking means holding the guard in its operative position retraction of the jack causes downward pivoting of the guard.
Patent GB-213939-A (GB)
IPC: C01B31/08
Filed: 1923-01-18
Abstract: 213,939. Algemeene Norit Maatschappij, (Assignees of Sauer, J. N. A.). May 26, 1922, [Convention date]. Carbon and charcoal.-Granular activated carbon, which has absorbed organic matter, is revivified by being subjected to the action of heat and activating gases while being mechanically agitated, the organic matter being thereby carbonized and removed. The heating of the drum or chamber used for regeneration may be internal, such as by injection of hot or burning gas, external, or both. Gases such as chlorine and sulphur dioxide may be used to remove inorganic impurities. The Specification as open to inspection under Sect. 91 (3) (a) describes a process in which the action of the gases is limited to the carbonization of the organic matter and the activation but not complete consumption of this secondary carbon. This subject-matter does not appear in the Specification as accepted.
Patent GB-784296-A (GB)
Title: Improvements in or relating to friction gear transmission
IPC: F16H15/38
Filed: 1954-04-05
Abstract: 784,296. Variable-speed gearing. WEISEL, Z. V. April 5, 1954 [June 23, 1953], No. 8958/56. Divided out of 784,295. Drawings to Specification. Class 80 (2). The subject-matter is part of that of Specification 784,295, but the claims differ. Specification 784,297 also is referred to.
Patent GB-737819-A (GB)
Title: Improvements in or relating to radar systems
Inventor: STARKS-FIELD ALFRED BENJAMIN
IPC: G01S13/44
Filed: 1953-04-01
Abstract: 737,819. Radar; automatic gain control. MARCONI'S WIRELESS TELEGRAPH CO.. Ltd. March 12, 1954 [April 1, 1953], No. 9109/53. Classes 40 (5) and 40 (7). A radar system in which the receiver includes a plurality of channels includes means for automatically stabilizing the channel gain comprising means for feeding a pulse of standard amplitude into a channel during the dead time immediately prior to pulse transmission and means for separating the pulse at the channel output and comparing it in amplitude with a reference signal. A control signal is developed dependent on the result of the comparison and used to control the gain of the channel to maintain it at a predetermined value. The drawing shows how the gain of one channel of a 4-channel system may be controlled in accordance with the invention, the provision for control of the other channels being indicated. The input ends of the channels are indicated at A, B, C and D and into the waveguide WG from each is injected a standard pulse shortly before the transmission of each radar pulse. The pulse injected in channel A passes through T.R. switches TR1 and TR2, mixer BM and intermediate frequency amplifiers IFA1 and IFA2 and is derived over line P1 and fed to the grid of valve VI. The reference potential is supplied to the grid of V2 whose cathode is connected through a balancing potentiometer RV1 to that of V1 and to switching valve V3 fed from the modulator M initiating the generation of the standard pulse. V3 is only conductive during the existence of this pulse and therefore V1 and V2 only conduct during the duration of the pulse and do not affect the normal operation of the radar channels. The changes in anode potentials of valves V1 and V2 whilst they are conducting are fed to a difference amplifier V4 and V5 gated by V6 which is also controlled by the modulator M. The amplitude of the negative pulse at the anode of V5 is a measure of the channel gain and this pulse is fed through diode D2 to condenser C1. The smoothed potential so obtained is applied to cathode follower valve V7 whose output over the line AGC is used to control the gain of the amplifier IFA in such a way as to maintain the channel gain constant. Output tappings are shown for supplying the other channels with the same standardizing pulses.
Patent GB-1134446-A (GB)
Title: Electrogasdynamic systems
Inventor: WALLBANK ROGER WICKHAM
IPC: H02N3/00
Filed: 1966-03-02
Abstract: 1,134,446. Wind tunnels; propelling aircraft. GOURDINE SYSTEMS Inc. 2 March, 1966, No. 9128/66. Heading B7G. [Also in Divisions F1, F2 and H2] Fluid is caused to flow past a dielectric surface by the energization of electrodes lying in the surface to give an EGD pumping or compressing action (see Division H2). If, however, the fluid is forced past the electrodes, then EGD generating action will occur and the fluid will be decelerated. In Fig. 18, electrodes 233-235 are shown embedded in dielectric material 231, 232 on the upper and lower surfaces of an air. foil, and when energized by the closed cycle EGD generator, Fig. 19 (not shown), cause air to flow along these surfaces. This provides a propulsive force on the foil or boundary layer control. A hypersonic wind tunnel, Fig. 20, includes an EGD accelerator or pump 261 connected through a test section 262 to an EGD decelerator or generator 263. The regions 261, 262 are connected to stagnation chambers 260, 264 respectively and these are connected together through a low power EGD accelerator 265. In operation, accelerator 265 starts the air circulating at speeds up to Mach 1 and subsequent switching on of generator 270 starts main accelerator 261 to give the required test speed (M. = 30). In a modification the electrodes may be arranged on the inner surface of a cylinder or toroid to provide a rotary flow wind tunnel, Figs. 16, 17 (not shown). The closed cycle EGD generator comprises a generator section connected in closed circuit with a heating element, an accelerator and a cooling element and, by use of a nuclear reactor heat source, can be used in space vehicles as a source of high voltage electricity for ion propulsion rockets.
Patent GB-231006-A (GB)
Title: Improvements in or relating to inductance coils and devices
IPC: H01F21/00
Filed: 1924-04-10
Abstract: 231,006. India Rubber, Gutta Percha, &. Telegraph Works Co., Ltd., and Spinks, W. G. April 10, 1924. Inductances.-A coil comprises a number of plain turns wound over pins B<2>, Fig. 2, each of which is preceded or followed by one or more zig-zag turns wound over and under the pins. The plain turns may lie, on the inside of the pins instead of the outside, being retained during winding by flat springs attached to the base of each pin. In the coil shown each plain turn A<1> is followed by a pair of zig-zag turns A<2> having their loops oppositely disposed. The pins may be curved to give the coil a substantially spherical form. Alternatively the coil may be cylindrical, rectangular, or D-shaped. After removal from the former, the coil may be bound with thread and varnished. Alternatively, the coil may be permanently mounted on its former. A variometer mav have its stator or rotor coils or both wound in this fashion. In the variometer shown in Fig. 5, the stator comprises truncated hemispherical windings C<7>, C<8> secured against ebonite end-rings C<1>, C<2> by L-shaped members C<9>. The rotor coils D<4>, D<5> are secured between an ebonite disc D<1> and end members D<6>, D' which are drawn together by a bolt. The rings C', C<2> are connected by metal plates C<3> which form bearings for spindle members secured to the disc D'. The spindles are provided with collars secured thereto by grub-screws; one collar abuts against its bearing plate and the other is separated therefrom by a spring washer. One spindle is provided with a knob and dial secured by a grub-screw. The adjacent turns of the rotor coils are connected together, and the end turns are connected to the two spindles. The adjacent turns of the stator coils are connected together and the end turns are connected respectively to a terminal C<12> and one metal plate C<3>. The other metal plate is connected to a terminal C<13>. The variometer is supported by feet C<7>. Thin semi-circular insulating strips C<5>, C<6> are fitted in grooves in the rings C<1>, C<2>.
Patent GB-849280-A (GB)
Title: Method of producing 1-glutamic acid
IPC: C12P13/14
Filed: 1957-03-20
Abstract: 1-Glutamic acid is produced by culturing, in a medium containing saccharidic materials, nitrogen sources, inorganic materials and if desired any other suitable materials, a micro-organism which has biotin-requesting nature, is capable of producing a -ketoglutaric acid from saccharidic materials, and possesses a high 1-glutamic acid dehydrogenase activity, particularly a strong activity for reductive amination of a -ketoglutaric acid, there being present in the medium an amount of biotin so as to maintain a favourable balance between propagation of the micro-organism and fermentation, while maintaining the pH of the medium at 6-9 by addition of an acid-neutralising agent.  The biotin may be added as a biotin-containing natural substance or as an extract, hydrolysate or digested material obtained therefrom.  A suitable micro-organism is Micrococcus glutamicus No. 541 (ATCC 13058). Specifications 839,597 and 849,279 are referred to.
Patent GB-403987-A (GB)
Title: Improvements in and relating to control of electric relays by means including electric discharge devices
IPC: H01J17/04
Filed: 1932-03-31
Abstract: 403,987. Valve circuits. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Cockrell, W. D. ; 1, Rugby Road, Schenectady, New York, U.S.A.) March 31, 1932, No. 9293. Convention date, March 31, 1931. [Class 40 (v).] A variable impedance 17, e.g. a photo-electric cell, controls the impedance of a valve 22 supplied with A.C. in whose anode circuit a reactance 23 displaces the phase of current variations with respect to the anode voltage and the displaced current is superposed on an A.C. bias voltage which normally renders an are discharge tube, also supplied with A.C., nonconducting. At a predetermined critical value of the impedance 17 the grid voltage of the device 1, when its anode voltage is at zero and rising positively with respect to the cathode, is rendered positive by the pulsating current from the condenser reactance 23 and associated potentiometer 10, so that the tube 1 trips and is made conducting throughout the positive half cycle so as to energise a relay 3 closing a local circuit 4. The tube 1 is therefore either fully conducting or fully non conducting according to the state of the impedance 17. The arrangement may be used to switch on or off street lighting in response to daylight or a predetermined intensity of daylight. Specification 319,286, [Class 40 (v), Wireless signalling &c.], is referred to.
Patent GB-268140-A (GB)
Title: Improvements in electric lighting devices
IPC: F21S9/02
Filed: 1926-04-09
Abstract: 268,140. Heaton, R. J. April 9, 1926. Battery lamps.-A lighting device adapted to be placed on walls or in cupboards, &c., comprises an insulating base plate 1 bearing an arm 2 angled outwardly to adapt it to clip a battery 3 between it and the plate. A bulb socket 7 is insulated from a bracket 6 which supports the centre contact of the holder, and one terminal strip 3b of the battery is adapted to bear on the socket 7 while the other terminal 3<a> is engaged with the pivot of a switch arm 4 arranged so that its free end can make contact with the bracket 6 to complete the circuit.
Patent GB-574706-A (GB)
Title: Improvements in low-friction bearings or pivots for use in connecting links of philosophical electrical or other precision instruments
IPC: F16C11/04
Filed: 1940-05-28
Abstract: 574,706. Pivot bearings. BRAITHWAITE, R. C., and METROPOLITAN-VICKERS ELECTRICAL Co., Ltd. May 28, 1940, No. 9376. [Class 65 (ii)] A low-friction pivot bearing for use in connecting links of philosophical &c. instruments comprises a stirrup 7 of relatively light spring material having aligned apertures for the conical ends 6 of the pivot, and a relatively stronger stirrup 8 embracing and strengthening 7, but normally clear of it. A second bearing may be arranged at right angles to the first, forming a Hookes' joint. The link 3 is attached to the lower bearing by a rod 3a passed through the parts 7a of the stirrups and provided with a head 3b and a spring 9. A similar pair of bearings may be attached to the lower end of the rod 3.
Patent GB-835141-A (GB)
Title: Improvements in and relating to resilient mountings
Inventor: HIND JOHN RICHARD
IPC: F16F13/00
Filed: 1957-03-22
Abstract: 835,141. Resilient mountings. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 15, 1958 [March 22, 1957], No. 9405/57. Class 108(3) In a constant frequency resilient mounting a rubber body 6 is bonded to metal members 5, 2, so as to form an air-tight chamber 7 therewith. Surfaces 3a, 6a come into contact under load and are shaped to provide desired characteristics.
Patent GB-541552-A (GB)
Title: Improvements in compression-ignition fuel-injection engines
IPC: F02B23/04
Filed: 1940-05-30
Abstract: 541,552. Oil engines. ORAM, D. R. May 30, 1940, No. 9457. [Class 7 (iii)] The combustion space comprises two chambers 14, 15 connected by a restricted neck 16, at which the injector 17 is arranged, the chamber 14 being centrally located, while the chamber 15 is offset away from the injector 17. The chamber 15 is in the cylinder head and is partly formed by a plug 22, while the chamber 14 is partly in the piston, a flat conical extension 12 being formed at each side. The injector nozzle may produce one spray downwards into the chamber 14, one into the lower part of the chamber 15, and two more diverging upwardly into the latter chamber. There may be two inlet and two exhaust valves in the cylinder head, the exhaust valves 19 being at the side towards which the chamber 15 is offset. The plug 22 is of metal capable of withstanding high temperatures, and is insulated by an asbestos washer 23.
Patent GB-492052-A (GB)
Title: Improvements in and relating to valves for mixing hot and cold water
IPC: F16K11/16
Filed: 1937-04-05
Abstract: 492,052. Mixing-valves. HUTCHISON, A., and SHEARDOWN, J. W. April 5, 1937, No. 9537. [Class 135] A valve device for mixing hot and cold water comprises two taps 8, 9 each carried by a screwed spindle 6, 7 in a bonnet or cover 4, 5 and each having a gear wheel 11, 12 which meshes with a third gear wheel 14 on an intermediate spindle 10, parallel to the other two spindles, the cover members 4, 5 being supported in a casing 15 which has an outlet 18 and two cylindrical inlets 20, 21 the rims of which form seats for the washers 4, 5. On operating the spindle 10 by means of a handle 19, cold water only is supplied first, then a mixture of hot and cold water, and finally hot water only. The washers 8, 9, Fig. 1, are held in place by pistons 22, 23. The piston 22 closes the hot water inlet when the washers are both seated whilst the piston 23 is spaced from the cold water inlet 21 by a short stem. As the washers are raised, the piston 22 is raised out of the inlet 20 and the piston 23 passes into the inlet 21. The gear wheel 14 is of such width as to allow the wheels 11, 12 to remain in gear therewith. In Fig. 2, the intermediate spindle also moves axially and is coupled to a tubular valve 26 which alternately closes ports 29, 25, leading from the hot and cold supplies respectively. The cover members 4, 5 are mounted on resilient washers 130, Figs. 1, 2, to enable either valve to be adjusted for wear by screwing down its cover member whilst its gear wheel is held stationary. Alternatively one of the gear wheels 11, 12 may be detached for the same purpose by removing a screw 13. To prevent the valves from being closed too quickly the gear wheel 12 meshes with a further gear wheel on a screwed spindle. The latter carries a cup leather moving a cylinder which has a restricted connection with one of the inlets.
Patent GB-610000-A (GB)
Title: Improvements in and relating to silencers for gaseous currents
IPC: F01N1/00
Filed: 1946-03-27
Abstract: 610,000. Silencing gaseous currents. FREEDMAN, A. March 27, 1946, No. 9539. [Class 7 (ii)] In an air intake or exhaust silencer, a series of chambers 41, 42 ... resonating at different frequencies, is formed by baffles radiating from a perforated pipe 1, 2 through which the air or gases pass. The chambers may extend the full length of the casing, or as shown, be divided by baffles 6, 6. The pipe 1, 2 may be eccentric to the casing.
Patent GB-1005715-A (GB)
Title: Improvements relating to mobile power units
Inventor: MARSHALL GEOFFREY WILSON
IPC: B60P3/00
Filed: 1961-05-18
Abstract: 1,005,715. Mobile power units. HALIFAX TOOL CO. Ltd. May 15, 1962 [May 18, 1961], No. 9642/64. Divided out of 1,005,714. Heading B7H. The subject-matter of this Specification is identical with that described in Specification 1,005,714, but the claims are particularly concerned with the driving of the air compressor mounted on the chassis.
Patent GB-472912-A (GB)
Title: Improvements in the creaming of rubber latex
IPC: C08C1/08
Filed: 1936-04-01
Abstract: Rubber latex and latex-like dispersions are creamed by the addition of an alkali pectate, preferably a "fibrous" alkali pectate such as is produced by the process described in Specification 472,974.  The creamed or partly creamed latex may be centrifuged to complete the concentration.
Patent GB-232256-A (GB)
IPC: H01H13/60
Filed: 1925-04-14
Abstract: 232,256. Decraene, F. April 14, 1924. [Convention date]. Void [Published under Sect. 91 of the Act]. S w i t c h e s, quickaction. - Successive depressions of the knob 1 move the rocking contact arm 2 alternately "on" and "off." The left-hand arm of the rocker 2 is forced into engagement with the contacts 3 by the knob 1 pressing on the end of the member 5 attached to this left-hand end of the rocker and normally maintained by spring pressure in engagement with the spindle 8 of the push. This member 5 and the similar member 6 are substantially U-shape in cross-section and embace the shank 8, but depression of the member 5 which is kept pressed on to the shank pushes out the member 6 so that it rides up and out. On release of the pressure this restores the push and, obviously, by provision of contacts on the other side, the switch may be made double-acting, but, as shown, the member 6 is only effective to cause the opening of the switch. The spring 7 gives a quick action.
Patent GB-715368-A (GB)
Title: Cleaning worked magnesium articles
Inventor: LONG HERBERT KENNETH DE
IPC: C23G1/12
Filed: 1952-04-17
Abstract: Articles of magnesium and its alloys are subjected to the action of a solution containing 12-45 per cent. by weight of acetic acid and a quantity of a water-soluble nitrate of an alkali metal, alkaline earth metal (including magnesium) or ammonium sufficient to produce an NO3 concentration of 1.5-12 per cent., at room temperature. Specification 657,283 and U.S.A. Specification 2,302,939 are referred to.
Patent GB-252844-A (GB)
Title: Improvements in and relating to accumulator batteries
IPC: H01M50/51
Filed: 1925-04-14
Abstract: 252,844. Haddon, W. April 14, 1925. Connectors. - A connector for accumulator cells comprises a die-casting of lead or lead alloy having at each end a boss in which is a hole 2, and at the centre a hole 1 to receive a wander-plug. Each hole 2 is coned and fits over the terminal piece of the cell and is secured by soldering, the hole 2 being filled up with lead.