baber/WOPTO huggingface dataset:
Patent GB-1066057-A (GB)
Title: Improvements relating to inductive clearance measurements
Inventor: OWEN CHARLES KIMIEL VIVIAN
IPC: F01D21/04
Filed: 1963-06-14
Abstract: 1,066,057. Measuring physical dimensions electrically. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 28, 1964 [June 14, 1963], No, 23802/63. Heading G1N.  A clearance monitoring system utilizes the change in apparent impedance of an air cored probe coil with distance from an electrically conductive surface as a measure of the distance. A system for measuring clearances between a disc or shaft of a steam turbine rotor 3 (Fig.1) and its casing comprises measuring and reference inductive probes 1, 15 respectively. Both probes are stationary and have air cored coils fed from an oscillator 19 at a frequency between 10 K c/s and 10 M c/s (e.g. at 1 Mc. ) and are connected to a differential amplifier 31 the output of which is indicated on a meter 31A, An extension bracket 9A of metal having similar magnetic characteristics when hot as the turbine rotor is located in the field of a coil 15A and both probes are in the turbine casing and in the steam flow path. Deviation of the impedance of coil 1A of probe 1 from that of probe coil 15A produces an output from the amplifier which may be rectified so that the meter 31A gives a steady deflection indicating the positive and negative changes in clearance over one revolution of the rotor. Preferably the probe coil 1A is arranged in a non resonant  circuit and the oscillator frequency is sufficiently below or away from the natural resonant frequency of the coil and its self capacity together with the capacity and inductance of the connecting cable to avoid any deleterious effects of change in the said parameters on the measured values. Instead of the oscillator 19 a regenerative amplifier may be used Fig. 2 (not shown) so that the system of coil and cable capacity oscillates at a frequency dependent on the inductance of the probe coil. A voltage output from the amplifier varies as the impedance of the probe coil and cable and thus as the clearance being monitored.
Patent GB-1385833-A (GB)
Title: Method for determining the position of an object at a remote  tracking station
IPC: G01S5/10
Filed: 1973-05-18
Abstract: 1385833 Radio-navigation BEUKERS LABORATORIES Inc 18 May 1973 23823/73 Heading H4D A method for determining the position of a remote object at a tracking station comprises receiving at said station first and second ambiguous position signals from said object, and computing first and second ambiguous position data from said respective signals. The ambiguity of the first ambiguous position data is then resolved in accordance with the second ambiguous position data, to obtain first unambiguous position data. Thereafter, the ambiguity of the second ambiguous position data is resolved in accordance with said first unambiguous position data to obtain second unambiguous position data, from which accurate latitude-longitude position data of said object are computed. As described, the object is a weather balloon carrying a radiosonde, and the tracking station is a weather-ship (Fig. 1, not shown). The radiosonde comprises receiving equipment for radio-navigation signals, and transmitting equipment. It retransmits to the tracking station Omega and Loran-C positions signals, constituting respectively said first and second ambiguous position signals. Figs. 2 and 5 show in flow-chart form the processing of the said signals at the tracking station, Fig. 5. being an expansion of block 18 of Fig. 2. A receiver for the tracking station is arranged to lock on the third cycle plus or minus two cycles of each of the Loran-C pulse signals, and the consequent ambiguity is resolved by the use of the Omega position data. An input from a local aerial is employed to provide an initial reference time difference to establish sampling or searching of the received telemetry Loran signal at an appropriate position. The inputs are passed through filters 52, 54, Fig. 11, which reduce the noise levels of outputs to limiters 56, 58. The receiver comprises a signal quality circuit 66 (Fig. 10, not shown) and, in operation, the received Loran-C pulse signals are scanned until a pre-determined energy level with respect to a reference level is detected, when scanning is terminated. Reference is made in the specification to 'Microminiature Loran-C Receiver/ Indicator' by R. A. Reilly, published in the IEEE Transactions on Aerospace and Electrtronic Systems, Vol. AES-2, No. 1, January, 1966.
Patent GB-1370702-A (GB)
Title: Air cooled heat exchanger
IPC: F04D27/02
Filed: 1972-05-22
Abstract: 1370702 Air cooled heat exchangers HUDSON PRODUCTS CORP 22 May 1972 [27 Dec 1971] 24027/72 Heading F4S [Also in Division F1] In a heat exchanger in which a process fluid to  be cooled flows through tubes 16 across which air is passed by an axial-flow fan assembly to cool said fluid, the fan assembly comprises a pair  of impellers 19, 20 mounted coaxially within a fan ring and close together, the blades of impeller 19 having a positive pitch which is non- adjustable during rotation, and the blades of impeller 20 being adjustable by remotely operable means within a range between positive pitches greater than and less than the positive pitch of the blades of impeller 19. The supply of power fluid from a conduit 31 for adjusting the pitch is controlled by a transducer 30 in accordance with the temperature of a fluid being cooled in the tubes 16 by the fan. The impeller 19 may be adjustable in pitch when stationary. At design flow, the impeller 20 is adjusted to a positive pitch greater than that of impeller 19. Reduction of the pitch of impeller 20 below that of impeller 19 will usually not reduce the air flow, which is then determined by the pitch of impeller 19, until the pitch of impeller 20 is reduced to a negative value. By reducing the pitch of impeller 20 to a negative value greater than the positive value of the pitch of impeller 19, the air flow may be reversed. A further adjustable-pitch impeller may be provided downstream of the impeller 20. Instead, an impeller identical to the impeller 19 but adjusted to a greater pitch may be provided between the impellers 19, 20. The blades of the second and third impellers may be circumferentially offset relative to those of the respective immediately preceding impeller to avoid the most turbulent part of the air stream.
Patent GB-409654-A (GB)
Title: Improvements in or relating to machines for printing on round articles or the like
IPC: B41F17/18
Filed: 1932-08-29
Abstract: 409,654. Printing-machines. BORNKESSEL, P., 16, Bannstrasse, S³dende, Berlin. Aug. 29, 1932, No. 24126. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 5, 1933.] [Class 100 (ii).] Curved or other solid articles 20, Fig. 3, are printed on by printing- plates 6 carried by a drum 4 and receiving ink from one or more inking-rollers 7 arranged around the drum 4 and driven therefrom. The printing-plates 6 are preferably provided with type-high ridges 29 which assist to feed the articles 20 and prevent spreading of the resilient printing-surface 6. This surface 6 is mounted on a resilient support carried by a plate 26, and holes, slots &c. 28 are provided in the drum 4 for receiving screws, bolts, or like securing means 27. A number of printing-plates may be arranged in line around the drum, or across the drum, and the articles 20 may be carried by levers &c. fitted with means for restoring them to their original position after an impression has been made. The plates 6 receive their ink from rollers 7 supplied from ducter rollers 5 formed with resilient coatings on which a supply of ink is spread. Ink is ground on the rollers 5 by means of rollers 9 which are axially reciprocated by means of cross screws 9<a>. Between the rollers 5 and 7 are arranged axially reciprocating rollers 8 which are reciprocated against the action of springs by oscillating levers 13 operated by cams 11 and formed at their ends with rollers engaging freely-mounted pulleys 14 on the shafts of the rollers 8. The extent of reciprocation of the rollers is limited by adjustable stops 16. The active part of the roller 8 consists of an adjustable number of resilient discs 18 which produce a coating of ink on the roller 7 that is not wider than the printing-surface. For multi-colour printing the rollers 7, when passing plates 6 which are not to be inked, are raised by adjustable cams 21 acting on discs 23 at the ends of the rollers 7. One set of rollers is driven by gearing from the drum 4, and the others may be driven by chains 25 from this set. The rollers 7, 5, 9 are preferably arranged radially of the drum 4, and are pressed towards the same by springs or gravity.
Patent GB-1395920-A (GB)
Title: Apparatus for thermal decomposition of inorganic materials
IPC: C01B13/14
Filed: 1972-05-23
Abstract: 1395920 Fluidized bed decomposition of inorganic materials MITSUI SHIPBUILDING & ENG CO Ltd 23 May 1972 [26 May 1971] 24181/72 Heading C1A [Also in Divisions F4 and B1] Inorganic materials, e.g. Mg or Mn sulphates, are thermally decomposed in a fluidized bed roasting furnace using gaseous fuel wherein the fuel is introduced into the bed 10 through grids 3 provided in the wall of the furnace 1, thereby blowing the material dropped into the furnace from inlet 4 towards the centre of the furnace and thus eliminating the accumulation o material on the grid 2 below the inlets through which air is blown to support combustion of the fuel. The main grid 2 is preferably convex as shown. The angle # of the grids 3 with the horizontal may be 60 degrees. Thermally decomposed materials and waste gases, e.g. SO 2  are discharged at outlets 5 and 9 respectively.
Patent GB-499470-A (GB)
Title: Shoes having intercommunicating air-chambered rubber soles
IPC: A43B7/06
Filed: 1938-08-17
Abstract: 499,470. Ventilating footwear. CALZATURA AERATA MEDUSA SOC. ANON. Aug. 17, 1938, No. 24258. Convention date, Aug. 17, 1937. [Class 17 (ii)] The rubber sole 1 of a shoe is provided with intercommunicating air-chambers 2, 3. Within the fore chamber 2 is a plurality of studs 8 of a diameter of about half their length among which studs, in the zone where pressure is exercised by the metatarsus, are other studs 8<1>, the diameter of which is about three times the diameter of the remaining studs. The studs 8, 8<1> support a strong leather insole 6 having holes 7 so distributed that they are not closed by the studs. The insole and the sole are secured together only peripherally by pasting, glueing, or vulcanizing. In the region of the arch, the insole is supported by a rubber support 10, convex in longitudinal section and concave in transverse section. The air chamber in the region of the heel is provided with transverse ridges 9.
Patent GB-631219-A (GB)
Title: Rectifiers
IPC: H01L21/06
Filed: 1947-09-05
Abstract: 631,219. Dry contact rectifiers. STANDARD TELEPHONES & CABLES, Ltd. Sept. 5, 1947, No. 24503. Convention date, Oct. 26, 1946. [Class 37] A dry contact metal rectifier comprises a base electrode 11, 26, a layer of semiconducting material 12, 27 applied to the base but leaving a portion of the base uncoated, and a layer of counter - electrode material 13, 28 applied to substantially the whole of the semiconducting layer such that the entire boundary edge of the semi-conducting layer is left uncoated. Terminal leads are joined to the uncoated portion of the base and to the counterelectrode material. Various configurations using rod, sheet and wire-like base materials are described.
Patent GB-680071-A (GB)
Title: Improvements in electric switches and contact arrangements therefor
IPC: H01H23/16
Filed: 1950-10-09
Abstract: 680,071. Tumbler switches. SCHOLES & CO., Ltd., G. H., and PEARCE, G. S. July 4,1951 [Oct. 9, 1950], No. 24575/50. Class 38 (v). In a dolly-operated switch, the movable contact a pivots about a shaped part b of a fixed contact c when the dolly h depresses a plate g, having a tongue g<SP>1</SP> engaging a bare recess i, thereby compressing springs e, f, so as to close contacts a, d,. The contact a and plate g can thus drag away from the co-operating fixed pivot elements if the spring pressure is removed. The Specification refers also to more than one spring on one or both sides of the contact a, and to other forms of fulcrum.
Patent GB-761986-A (GB)
Title: Improvements in gate valves
Inventor: SHAND STANLEY GRAPES
IPC: F16K31/528
Filed: 1953-09-05
Abstract: 761,986. Valves. SAUNDERS VALVE CO., Ltd. Aug. 31, 1954 [Sept. 5, 1953], No. 24622/53. Class 135. In a gate valve which is operated by mechanism which imposes lateral forces on the gate, the gate 38, 39 is circular and is rotatably mounted on a spider 19 so that it can roll on either of two lateral surfaces 37 provided in the valve casing 11, 12 to limit the lateral movements of the gate when opening and closing movements are imparted to the spider, rollers 32, 34 being provided on the spider which can contact with and run on guide surfaces in the valve body on either side of the gate according to the direction in which the fluid pressure preponderates the rollers and guide surfaces being arranged not to impede the lateral movements of the gate or the rollers to obstruct the clear bore 22 through the valve when open. The gate itself comprises two circular discs 38, 39 rotatably carried by the spider 19 on which the rollers 32, 34 are also carried. The discs 38, 39 are arranged to engage sealing rings 17, 18 sealed to the valve casing by annular diaphragms 24, 25 the fluid pressures on the outer sides of which are partly balanced by fluid pressure acting within counterbores 26 and partly taken by rigid washers 24a. The sealing pressure is provided by springs 23 only, where these pressures are completely balanced. In some cases the net fluid pressure acting on the rings 17, 18, and the diaphragms 24, 25 may actually oppose the springs 23. The spider 19 which has a central vertical arm 31 and two lateral arms 33 is accommodated between the discs 38, 39 and has a central flange 43 embracing a socket 41 on the disc 38. A spigot 42 on the disc 38 engages the socket 41. The rollers 34 are only slightly greater in diameter than the thickness of the gate. One or more of the rollers may be accommodated in grooves in the valve casing and as shown the roller 32 which is wider than the rollers 34 moves in vertical grooves 35 to prevent or minimize tipping of the gate. The gate is operated by a connecting rod 28 and a crank arm 29 secured to an operating spindle 46 projecting laterally from the valve casing. The connecting rod is journalled on the spider flange 43 and is of duplicate construction as shown or bifurcated at the ends. It is formed with a generally triangular slot 44 to provide the necessary clearance for the roller 32 and the spider arm 31. The spindle packing 47 may be replaced by removing a cap 49 and withdrawing the spindle 46 when the valve is closed. Specification 655,078 is referred to and Specification 761,977 is referred to in the Provisional Specification.
Patent GB-196226-A (GB)
Title: A new or improved under-garment
IPC: A41C1/06
Filed: 1922-09-11
Abstract: 196,226. Taylor, C. M. Sept. 11, 1922. Corset substitutes. - A corset-like undergarment adapted to be laced at the back and partially divided at the front at f is formed from eight sections a united by French seams b extending from top to bottom of the garment. Shoulder straps d are formed in two parts united by buttons, and stocking suspenders comprise a button on a strap adapted to engage a loop on a companion strap, the button being provided with a loose covering of fabric g, Fig. 5. A frill or flounce e may be provided.
Patent GB-740937-A (GB)
Title: Improvements in the preparation of carboxylic acid chlorides
IPC: C07C51/60
Filed: 1953-09-07
Abstract: The invention comprises a process for preparing carboxylic chlorides by heating at 100 DEG  to 375 DEG  C. a mixture of carbon tetrachloride, a carboxylic acid, a carbocyclic or heterocyclic compound free from COOH groups and having at least one H on the aromatic nucleus, and a catalyst containing one or more oxides or mixed oxides of Mo, W, Si or Al or which is a metal salt of H2MoO2 or 3 or H2WO2 or 3, preferably in a mol. ratio of 2 : 1 : 1 of the reactants above.  In examples, benzene, CCl4, acetic acid and a catalyst of reduced tungstic oxide react to give benzoyl and acetyl chlorides, with some terephthaloyl chloride, and isophthaloyl chloride; or with different proportions of reactants, benzoyl chloride; copper tungstite may also be used as catalyst; benzene, benzoic acid, CCl4 and reduced tungstic oxide give benzoyl chloride, terephthaloyl and isophthaloyl chlorides, products also obtained from benzene, terephthalic acid and CCl4; benzene, CO2 and CCl4 give COCl2 and benzoyl chloride; chlorobenzene acetic acid and CCl4 give p-chlorbenzoyl chloride; toluene, acetic acid and CCl4 give toluyl chlorides and a dibasic acid chloride; diphenyl, acetic acid and CCl4 give p-phenyl benzoic acid chloride, and dibasic compounds; naphthalene, acetic acid and CCl4 give acetyl chloride, and naphthalene dicarboxylic chlorides; the acids may be obtained by hydrolysis of some products, e.g. p-phenylbenzoic acid; methods of preparing the reduced tungstic oxide, nickel molybite and nickel tungstite as catalysts are also described. The aromatic or heterocyclic compounds may have other substituents on the nucleus, e.g. especially alkoxy benzenes.ALSO:A reduced tungstic oxide nickel molybdite and nickel tungstite used as catalysts (see Group IV(b)), are described in Preparations I-III below.  Ammonium paratungstate is treated with nitric acid and the precipitate dried and calcined followed by reduction with hydrogen to give reduced tungstic oxide WO2; II ammonium paramolybdate is treated with ammonia, the resulting molybdate reacted with nickel nitrate, the pH of the solution adjusted to 7 with ammonia and the precipitate dried, calcined and reduced with hydrogen to give a product nickel molybite, NiMoO2O. 2MoO3; III amonium tungstate prepared by the action of ammonia or ammonium paratungstate, is treated with nickel nitrate, the pH adjusted and the precipitate dried, calcined, treated in nitrogen and reduced with hydrogen to give nickel tungstite, NiWO2.  U.S.A. Specification 2,572,300, which discloses the preparation of molybdites such as copper, nickel and cobalt molybdites, and U.S.A. Specification 2,702,232, which discloses the preparation of tungstites are referred to.
Patent GB-1136328-A (GB)
Title: Apparatus for controlling the speed of motor-driven take-up spools
IPC: B65H81/04
Filed: 1967-05-26
Abstract: 1,136,328. Control of D.C. motors. FRISCH KABEL - UND VERSEILMASCHINENBAU G.m.b.H. 26 May, 1967 [27 May, 1966], No. 24678/67. Heading H2J. A D.C. motor 7 driving a take-up spool 10 is supplied with stepped increments of current, the number of steps being in accordance with the number of layers of material being wound on to the spool. A laying device 1 operates switch 2 for a constant period when each layer has been half-wound, so energizing transformer 4. Pilot motor 5 then adjusts resistor 6 which increases the current supplied to the motor 7. The transformer 4 has its ratio preset to a value corresponding to the thickness of the layer to be wound, whilst resistor 9 adjusts the tractive force in accordance with the nature of the material on the spool. In another arrangement, a part of the laying device is adapted intermittently to interrupt a light beam associated with a photo-electric cell whereby the primary circuit of the transformer is closed by an amplifier for predetermined periods. Alternatively, the photo-electric cell triggers a mono-stable multivibrator which closes the circuit for the pilot motor. According to another embodiment, the material to be wound is guided over a photo-resistor so as to reduce the amount of light falling upon the resistor whose value is a measure of the layer thickness. This determines the transmitting periods of the multivibrator, to correct for variation in the thickness of the material. The circuit of the driving motor 7 may comprise a bank of resistors associated with a selector switch, each resistor being adjustable by the pilot motor.
Patent GB-319125-A (GB)
Title: A scaffold pole grip or tie
IPC: E04G7/04
Filed: 1928-08-28
Abstract: 319,125. Miller, C. H., and Dann, S. W. Aug. 28, 1928. Scaffolding. - A device for securing poles together at various angles consists of a, fixed member having a flat base 1 for contacting with a pole, and upstanding guides 3 joined at the top by a perforated flat plate 4, the guides serving as supports for a movable member 10, and the flat plate as a support for a screw 9. The ends of the movable member . are slotted to receive the links of a binding chain and are lipped at 14 to prevent slip. The outer edges of the guides 3 may be curved to provide support for horizontally disposed poles while they are being secured, lips 8 preventing their displacement. These devices are secured to the vertical poles, as shown in Fig. 1, to act first as supports for a horizontal pole which is then braced to the vertical poles, as shown in Fig. 2, by further devices and chains, whereupon the support clamps are removed and used elsewhere.
Patent GB-997304-A (GB)
Title: Improvements in and relating to toys
IPC: A63H27/04
Filed: 1964-06-16
Abstract: 997,304. Captive aircraft. J. EINFALT, and A. EINFALT, [trading as GEB. EINFALT BLECHSPIELWARENFABRIK]. June 16, 1964 [Feb. 22, 1964], No. 24920/64. Heading A6S. In a toy having a toy aeroplane d mounted on a raisable and lowerable arm e, the said arm is a right-angled extension of a vertical shaft f which is rockable about axes at right-angles to one another. The spring driving mechanism g for the shaft / is pivotally mounted on a plate k which is in turn pivoted on pivots I at rightangles to the first-mentioned pivotation. The rocking of the driving mechanism in either direction is controlled by a lever r coupled to the driving mechanism g by ball joints o and q. Thus, the aeroplane may be arranged to dip low on one side, or each side, of hypothetical airports b and c, or on slowing down may be brought in to land at those points and brought to a standstill by stop members m.
Patent GB-814240-A (GB)
Title: Vibrator
IPC: B25D9/14
Filed: 1957-08-08
Abstract: 814,240. Excavators; percussive tools. INDUSTRIKOMPANIET A.B. Aug. 8, 1957 [May 24, 1957], No. 25028/57. Class 124. [Also in Groups XXI and XXIX] A vibrator, consisting of cylinder 10, differential piston 11 and piston rod 12, has means for high speed oscillation, consisting of a slide valve 13 and springs 25, 26 which are always acted on by the piston and force the slide valve to follow, with some timelag, the motion of the piston. The piston rod side of the piston is always open to fluid pressure, and the action of the slide valve is such that it alternatively connects the other side to pressure and exhaust. The vibrator may be coupled with the excavating elements of an excavating and loading machine. In another embodiment, the block containing the valve forms one end of the cylinder, and the whole is sufficiently narrow to be used as a deep drilling machine. Two such vibrators may be mounted on a tube which is rotated in the drilling hole to obtain a core of the material being drilled.