baber/WOPTO huggingface dataset:
Patent GB-736862-A (GB)
Title: Manufacture of cyclopentanopolyhydrophenanthrene compounds
IPC: C07J13/00
Filed: 1952-09-02
Abstract: The invention comprises the triacetates of di-enolized 21 - ethoxalyl - allopregnan - 3 - ol - 20 - one and 21 - ethoxalyl - D 5 - pregnen-3 - ol - 20 - one, together with a process for the preparation of triacylated enols of 21-alkoxalyl - pregnane - or D 5 - pregnen - 3 - ol-ones (wherein the alkoxalyl group contains 3-6 carbon atoms, and the acyl groups are derived from a lower aliphatic acid containing from 2-5 carbon atoms) by reacting a 21-alkoxalyl - pregnan - 3 - ol - 20 - one or the corresponding D 5-pregnen compound with an aliphatic carboxylic acid anhydride in the presence of a sulphonic acid catalyst.  Specified catalysts are p-toluene sulphonic acid and amido-sulphonic acid.  In examples: (1) 21-ethoxalyl - allopregnan - 3 - ol - 20 - one in acetic anhydride are boiled with p-toluene sulphonic acid, and the concentrated solution poured into ice-water with stirring, when the triacetate of di-enolized 21-ethoxalyl-allopregnan-3-ol-20-one separates; (2) as in (1), employing the corresponding D 5-pregnenolone, when the product is the triacetate of di-enolized 21 - ethoxalyl - D 5 - pregnen - 3 - ol - 20 - one.
Patent GB-1037383-A (GB)
Title: An improved electrical alarm system
IPC: G08B21/04
Filed: 1963-06-04
Abstract: 1,037,383. Transistor relay circuits. E. B. COHEN. Sept. 1, 1964 [June 4, 1963], No. 22117/63. Heading H3T. [Also in Division G4] An alarm circuit comprises a pair of crosscoupled transistors normally biased to be on the point of oscillation. Sounds picked up on a microphone connected to the circuit causes it to oscillate and the resulting increase in current through a relay in the collector circuit of one of the transistors causes it to operate.
Patent GB-1137538-A (GB)
Title: Improvements in or relating to hydraulic pressure intensifiers
IPC: F04B5/00
Filed: 1966-05-19
Abstract: 1,137,538. Hydraulic pressure intensifiers. NARADI NARODNI PODNIK. May 19, 1966 [May 20, 1965], No. 22237/66. Heading F1P. The high-pressure cylinder space 4 Fig. 2 of a hydraulic intensifier is formed within a hollow double-acting low-pressure piston 3 reciprocably mounted within a cylinder 1 and the high-pressure piston 5 which is also double-acting is fixed to a stationary head 6 of the intensifier body 2. In operation low-pressure oil admitted through an inlet 7 to a bore 14 is distributed by a hydraulically actuated spool valve 21 Fig. 4 along a bore 22 leading to the space below the lower end of piston 3 whilst the space above the upper end of said piston is connected through a bore 23 and the valve 21 to an outlet bore 13 and connection 8. Piston 3 is thereby raised and high-pressure oil is forced past a non-return valve 25 in the enlarged lower end of piston 5, an axial bore 5a and a non-return valve 11 at an outlet 10 having a relief valve 9, Fig. 6. At the end of the upward stroke the piston 3 actuates a lever 18 which in turn displaces an auxiliary spool valve 17 to an end position in which is connects an inlet branch 14c to one end of the main spool valve 21 to displace it to its other position whereof the return stroke of piston is initiated. High-pressure oil is then forced from the annular space surrounding the narrow portion of piston 5 through ports 5b and into bore 5a; valve 25 being closed, and 24 open. In a modification the double-acting lowpressure piston comprising upper and lower isolated connected portions 3a' 3b' Fig. 8 are reciprocated by compressed air distributed by a spool valve 21' either to the cylinder spaces below or above each piston 3a', 3b'. The high-pressure cylinder space 4' is filled with oil forced by air pressure from a tank 13' Fig. 7 up a fixed tube 13b' and a tube 13' slidable therein and projecting downwardly, from piston 3b'. The auxiliary spool valve for actuating valve 21' is operated by rod 18' when the latter is abutted by the inner ends of pistons 3a', 3b'.
Patent GB-286551-A (GB)
Title: Improvements in or relating to electric motor controllers
IPC: H02P1/20
Filed: 1927-08-24
Abstract: 286,551. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). Aug. 24, 1927. Electromagnetic switches.-In an accelerating switch actuated by a winding A and restrained by a winding B subject to transient current, the effect of the restraining winding is made variable at will by the provision of two separately adjustable magnetic parts. In the construction shown in the Figures a built-up magnetic bobbin composed of a central sleeve 45 and end-pieces 48, 50 can be set at different distances from the end of a central insulating rod by inserting or withdrawing liners 55, and a magnetic screw 58 can be turned to adjust the distance of its head from the contact-armature 33. Specification 181,265, [Class 38 (iii), Electric motor control systems &c.], is referred to.
Patent GB-815740-A (GB)
Title: Improvements in spring drums
IPC: H02G11/02
Filed: 1955-08-03
Abstract: 815,740. Spring drums. MATTEI, J. B. Sept. 27, 1956 [Aug. 3, 1955], No. 22322/55. Class 78 (2). A spring drum A carries three-core cable H and the cores thereof are connected to the supply terminals G through the three springs F, which both carry the weight of the drum and act as conductors of electricity. Braking is provided by spring-loaded shoe K which is coupled by arm M to the cable H which passes round it so that, as the cable is pulled, the brake is released to permit the cable to pay out against the pull of the spring.
Patent GB-772176-A (GB)
Title: Improved dress shield and perspiration absorber
IPC: A41D27/13
Filed: 1953-08-13
Abstract: 772,176. Dress shields. BREWER, N. I., and HELMKE, J. Aug. 11, 1954 [Aug. 13, 1953], No. 22329/53. T.C. drawings marked. Class 141. A dress shield for attachment within the sleeve of a garment, under the armpit, comprises two superimposed cloth assemblies A and B, the assembly A including a part C of smooth waterproof material to protect the sleeve from moisture, and the other a part J<SP>1</SP> of absorbent material, spaced perforations F being provided in the first assembly to allow air currents to carry perspiration away from the armpit to the absorbent material and allow the entry of dry air. The assembly A is secured to the sleeve of the garment by ribbons G while the assembly B is readily detachable from the assembly A by means of clips H carried by the ribbons G. The part C is stitched to a part J of linen or other tightly woven material. The part J' of lint or other porous material is superimposed on a layer E of woolly material and a layer C<SP>1</SP> of waterproof material. The layer E is covered with aromatic powder before the layers are stitched together, such that powder may be carried through holes F<SP>1</SP> to the armpit.
Patent GB-333370-A (GB)
Title: Improvements in and relating to spragging devices for motor vehicles
IPC: B60T7/12
Filed: 1929-07-20
Abstract: 333,370. Wilson, G., and Moore, H. J. H. July 20, 1929. Locking vehicle wheels by positive detents.-A sprag for motor vehicles comprises pawls rotatable with the transmission shaft for engagement with a fixed ratchet, centrifugal means whereby the pawls are kept out of engagement with the ratchet except at low speeds and means for holding the pawls disengaged irrespective of the speed. The disengaging means may be connected to the gear control member so that for certain gear positions the sprag is rendered inoperative. The device comprises an internally toothed ratchet 7 bolted between cylindrical casing members mounted on a cross-member 1 of the chassis, and a series of pawls 12 mounted on pins 11 between a pair of discs secured to the Cardan shaft 6. A weight 13 pivoted independently of the pawls on each pin 11 is adapted to engage a projection 12<a> on the pawl. Springs surrounding the pins 11 and engaging pins 13a on the weights 13 tend to hold these in the inner position disengaged from the pawls. Springs 14 tend to hold the pawls engaged with the ratchet. At low speeds the pawls are held engaged with the ratchet 7 by the springs 14. If however the speed is above a certain value the weights 13 fly outwards and disengage the pawls. The independent mounting of the weights 13 prevents these from oscillating with the pawls when the pawls are engaged with the ratchet, thus reducing inertia stresses and wear between the pawls and the ratchet. Disengagement of the pawls irrespective of the speed is effected by tapered pins 27 engaging the weights 13 and carried by a sliding grooved collar 24, Fig. 3, operated by a forked arm 25 pivoted at 26 and provided with a pin 28 passing through a cam slot 29 in a sliding plate 30. This plate may be operatively connected by lever and link 32, 34 to the gear selector of the vehicle and the cam slot 29 be so shaped as shown that in the first and second gear positions and first neutral the pins 27 are withdrawn and the sprag is operative while in second, neutral and reverse positions the pawls are disengaged. According to the Provisional Specification the operation of the arm 25 and collar 24 is effected by a sliding plate provided with a slot having a lateral extension by which the gear lever enters the slot prior to being moved to the reverse position. The slot allows the lever to move to neutral position without re-engaging the pawls, but it must be moved to first gear position to re-engage the pawls before going into the second or third gear positions. Specification 290,320 is referred to.
Patent GB-461316-A (GB)
Title: Improvements in and relating to display stands
IPC: G09F5/00
Filed: 1935-08-08
Abstract: 461,316. Collapsable display stands. JOHNSON, D. R., and JOHNSON, RIDDLE, & CO., Ltd. Aug. 8, 1935, No. 22383. [Class 3 (ii)] A collapsable display stand comprises two spaced interconnected supports, the front support having its upper edge shaped to conform with the shape of the article to be displayed, which article rests thereon along a line lying in a plane in front of and parallel to a vertical plane passing through its longitudinal axis. In the embodiment shown, the stand depicts a person pouring liquid from a bottle into a tumbler. The bottle rests on the support 2 and the member 9 connecting the supports 1, 2 and these supports are shaped and printed to depict a human figure, a tumbler and a stream of liquid extending from the bottle to the tumbler. A lip 6 on the support 2 engages in the neck of the bottle.
Patent GB-338531-A (GB)
Title: Apparatus for the interconversion of electrical and acoustic wave energy
IPC: G01S1/72
Filed: 1929-07-20
Abstract: 338,531. Baron, H., (Hahnemann, W.). July 20, 1929. Magnetic instruments; condenser telephones. - A sound transmitter or receiver, more particularly for subaqueous use, comprises an oscillatory body consisting of a single mass tuned to the frequency of the oscillations employed and suspended in a housing, the thickness of the body being governed by the wave length of the oscillations in the material thereof and the oscillatory energy to be converted being applied between the housing and the oscillatory body. The shape, weight and mode of suspension of the body is preferably so chosen that the amplitude of the oscillations produced at one of its ends is greater than the amplitude of oscillations produced at its other end. The oscillatory body is preferably tuned to. a frequency band of 5,000 to 10,000 cycles and the oscillations may be modulated for the transmission of telephonic signals. Moreover, the receiver itself may be excited at a suitable frequency for the purpose of heterodyne reception. Fig. 1 shows a construction in which a cylindrical oscillator 0 is suspended by an annular diaphragm M in a cylindrical casing G. The outer surface of the oscillator or the whole apparatus abuts on the medium in which the sound is to be generated or received and in the interior of the apparatus, a gaseous medium at any pressure may be present or a vacuum may exist. The oscillator mav be made of steel in which the speed of propagation of oscillations is about 5,000 metres per second, and if a frequency of 10,000 cycles per second is used, then the wave length of the oscillations in this material amounts to 50 centimetres and the length a of the cvlindrical oscillator will be 25 cms. Fig. 2 shows a form of oscillator in which the cross section between its outer and inner surfaces is altered so as to obtain a definite value of amplitude transformation, the inner surface, being of greater diameter, oscillating with a lower amplitude than the outer surface. In a modified construction, Fig. 3 (not shown), the outer surface of the oscillator is of annular form whilst the inner surface is a complete circle. The oscillator may also be constructed so as to produce a converse amplitude ratio, in which case, the casing G may, if desired, be allowed to co-oscillate, and the amplitude ratios may be obtained by constructing the oscillator from two materials of different mass or two materials having different sound properties, the parts being intimately connected by welding, soldering &c. The oscillator may be excited electrostatically, actuated by a moving coil or formed as an armature. In order to obtain directional effects a number of sound transmitters or receivers may be combined into groups and reflector arrangements may also be employed, if desired.
Patent GB-658764-A (GB)
Title: Improvements in or relating to t.r. switches
IPC: H01J17/04
Filed: 1948-08-25
Abstract: 658,764. Discharge apparatus. M-O VALVE CO., Ltd., and CLACK, B. N. Aug. 25, 1948, No. 22405. [Class 39 (i)] Particles of glass shot 2 adapted to form a reservoir for a water vapour filling of the envelope of a T.R. switch are retained in a portion of a side tube 1 of the main envelope by a glass diaphragm in the shape of a flared horn 3, so dimensioned that if the tube is inverted the level of the glass shot lying on the diaphragm is below the level of the throat 4 of the diaphragm. Alternatively, the diaphragm may be an annular disc having a narrow tube extending at right angles to the plane of the disc from the central aperture therein. In cases where it is desired to maintain particles within the discharge path, for example for reducing the deionizing time, two diaphragms may be provided, having their throat openings projecting into the particle enclosure. Specifications 600,889, 617,376 and 637,441 are referred to.
Patent GB-600219-A (GB)
Title: Improvements in and relating to adaptors for electric lamp holders
IPC: H01R33/08
Filed: 1945-08-31
Abstract: 600,219. Lamp-holders. G ENE R A L ELECTRIC CO., Ltd., BOWD, A. G., and RICHARDS, S. W. Aug. 31, 1945, No. 22476. [Class 38 (i)] An adaptor for a lamp-holder whereby a fitting can be provided with either a screwtype or bayonet-type lamp-holder, and which also constitutes a flame-proof partition. The adaptor comprises a block having a circular flange 1 and a cylindrical spigot 2, which constitutes a flame-proof partition when the adaptor is clamped on a fitting having a recess to fit the spigot 2. Two apertures 7 extend from the upper surface of the block to meet two recesses 8 at the bottom. Screws 9 pass through these apertures and engage terminal blocks 10 slidable in a slotted extension 11 of the block. Helical springs 14 are provided. between the heads of the screws and the shoulders of the recesses 8 so that spring-loaded contacts are formed for engagement by the terminals of the lamp holder. Two metal plates 15 are inset in the block and fastened to it by bolts 16. An earth terminal block 17 may be provided at the end of one of the bolts. The plates 15 are provided withÀ three pairs of tapped apertures 18, 19 and 20, the pairs 18, 20 being located in such a position as to register with apertures on screw-type lamp-holders and the pair 19 being located to register with apertures in a bayonet type lamp-holder, when the contacts of the holder are engaged with the screws 9.
Patent GB-443713-A (GB)
Title: Improvements in electric incandescent lamps
IPC: H01K1/66
Filed: 1934-08-02
Abstract: 443,713. Electric cut-outs. CONNOLLY, A. B., 23, South Street, Havercroft, near Wakefield, Yorkshire. Aug. 2, 1934, No. 22509. [Class 38 (i)] [See also Group XI] An electric incandescent lamp is provided with a fusible conductor directly embedded within the material used for securing the cap to the bulb. The fusible conductor may be in the form of a helix 10 in series with one leading-in wire 1<c> and surrounding the other leading-in wire 1<b>. Alternatively, the fusible conductor may be in the form of a flat zigzag, or a substantially straight wire disposed between the neck of the bulb and the adjacent inner wall of the cap. The materials used for the fuse comprise copper, silver, or the material known under the Registered Trade Mark "Eureka."
Patent GB-740784-A (GB)
Title: Reciprocatory pumps
Inventor: FREEMAN FRANK GEORGE
IPC: F04B1/053
Filed: 1953-08-17
Abstract: 740,784. Reciprocating pumps and compressors. LUCAS (INDUSTRIES), Ltd., J. July 28, 1954 [Aug. 17, 1953], No. 22581/53. Classes 8(1) and 102(1). In a reciprocating pump or compressor the body a has at least one radial cylinder fitted with a piston d having a port e and engaging a flat face on a sheave g mounted on an eccentric h. Fluid flows from the chamber c through groove n, in the sheave, and port e during the suction stroke and is delivered through port e and port o in the sheave which co-operates with a cut-away portion i of the eccentric that is in communication through passage r with an axial bore q in the eccentric shaft. The pistons d may be pressed against the sheave by springs f or each opposite pair of pistons may be connected by a yoke which engages grooves in the pistons and surrounds the eccentric shaft.
Patent GB-316552-A (GB)
Title: Improvements relating to the vaporisation of heavy hydrocarbons
IPC: C10G7/00
Filed: 1929-07-23
Abstract: 316,552. Compagnie Internationale pour la Fabrication des Essences et Petroles. July 30, 1928, [Convention date]. Hydrocarbons, cracking and distilling.- In cracking oils by passage through a heated porous mass, which when covered with a carbon deposit can be reactivated by combustion in an air current, the impregnation of the porous ma. terial by the still liquid oil in the vicinity of the inlet is avoided by the use of a series of baffles. Oil admitted by a pipe a into a reaction chamber A flows over a series of baffle plates B whereby it is sufficiently heated to ensure that on reaching the layer of porous material D it vaporizes without impregnating the material. Water or steam may be admitted by a pipe a<1>. The vaporized products pass out at a<2>, and the heavy residues at a<4>. The porous mass is regenerated by blowing air or oxygen in by a pipe a<3>. The vessel A may be annular in shape and the water to be admitted at a' may be passed through a coil in the centre of the annulus. The vapours evolved may be passed to catalytic apparatus for further treatment.
Patent GB-1098095-A (GB)
Title: Thermal power plant with supercharged steam generator
IPC: F01K23/06
Filed: 1966-05-20
Abstract: 1,098,095. Methods of steam generation. SULZER BROS Ltd. May 20, 1966 [May 31, 1965], No. 22592/66. Heading F4A. [Also in Division F1] A steam boiler 2, 6, Fig. 2, supplying steam to a steam turbine 11 and including a preheater, an evaporator and a superheater is supplied with combustion air by a compressor 1 and with j fuel from a line 3. The combustion gases are diverted through a gas turbine 4 in passing from the part 2 of the boiler to the part 6. The gas turbine 4 drives the compressor 1 and, it may be a a generator 5. After being heated in the boiler part 6, the feed water is diverted through feedwater heaters 9 to be heated by steam bled from the steam turbine 11 and is then returned to the boiler to be evaporated in the boiler part 2. The feedwater preheaters 9 may be replaced by a nuclear reactor or any other heat exchanger. If the operating medium of the heat exchanger is a vapour or a gas, it may be mixed with the combustion gases at the exhaust side of the gas turbine 4. In a modification, Fig. 3 (not shown), in which the steam may be supplied to a steam supply main (18) instead of a steam turbine, the preheaters 9 are replaced by an auxiliary boiler (14) supplied with combustion air from an intermediate stage of the compressor (1). The combustion gases from the auxiliary boiler (14) join the combustion gases exhausting from the gas turbine (4) to the part (6) of the main boiler. The auxiliary boiler (14) may be heated by combustion gases from the part (2) of the main boiler.
Patent GB-1477437-A (GB)
Title: Internal combustion engine carburettor having power valve control apparatus
IPC: F02M7/133
Filed: 1975-05-23
Abstract: 1477437 Spray carburetters FORD MOTOR CO Ltd 23 May 1975 [5 Aug 1974] 22605/75 Heading F1H The manifold pressure required to prevent rod 32 from operating power valve 18 is reduced at cold intake air temperatures by bleeding air at atmospheric pressure to the low-pressure side of piston 29 via holes 42, 43 in a temperature sensitive valve 37. The valve 37 may be screwed in or out with respect to the construction 36 to provide an initial adjustment between the construction and at tapered portion 38. A wax capsule 44 operates plunger 46 to close the bleed hole 43 at higher air temperatures and extends into the air filter of the carburetter. Air-flow past piston 29 is obtained by a groove or hole in the piston or by the piston being undersize.
Patent GB-653138-A (GB)
Title: Improvements in or relating to the manufacture of electric cables
IPC: G01L7/08
Filed: 1948-08-27
Abstract: 653,138. Indicating leaks. STANDARD TELEPHONES & CABLES, Ltd. (Del Rio, E.P.). Aug. 27, 1948, No. 22642. Drawings to Specification. [Class 99(ii)] [Also in Group XIX] In the manufacture of a sheathed electric cable of the dry core type, the sheath when applied to the cable core is sealed at both ends whilst the temperature of said core is above the atmospheric temperature, and then allowing to cool, thereby creating a reduced pressure, and the pressures inside and outside the sheath are compared, e.g. by means of a gauge (see Group XIX), whereby imperfections in the sheath may be detected.
Patent GB-461143-A (GB)
Title: A new or improved inner cap, net cap or headband for use with a bathing cap
IPC: A42B1/12
Filed: 1935-08-12
Abstract: 461,143. Bathing - caps. CHAPPLE, J. S., and CHOTZNER, B. V. Aug. 12, 1935, Nos. 22673 and 34631. [Class 63] An inner cap or head-band for use with a bathing cap comprises a band or pad of chamois leather and means for securing and retaining the band or pad in position between the head of the wearer and the edge of the bathing cap. A net cap 1 having a rubber band enclosed in a hem at its edge may support a doubled chamois leather strip 3, which may extend all round the head-opening. Alternatively the cap may be of any material, a piece of chamois leather being doubled and sewn over the edge. The purpose of the absorbent leather is to keep the hair dry.
Patent GB-1332734-A (GB)
Title: Catalytic composite of platinum group metal nickel and group iva metal with carrier material and use thereof
IPC: C10G35/09
Filed: 1971-04-19
Abstract: 1332734 Catalyst composition UNIVERSAL OIL PRODUCTS CO 19 April 1971 [2 March 1970] 22704/71 Heading B1E [Also in Division C5] A catalyst composition comprises a platinum group metal component, a nickel component, a porous carrier material, and a group IVA component (Ge, Sn and/or Pb) uniformly distributed throughout the entire surface area of the porous carrier material. The composition may also contain a halogen component. Many carrier materials are specified, alumina being preferred. The preferred composition comprises 0.01-2 wt. % platinum metal, 0.01-5 wt. % nickel, 0.01-5 wt. % group IVA metal and 0.1-10 wt. % halogen. The Example describes the preparation of a composition of gamma -alumina, platinum, nickel and germanium.