baber/WOPTO huggingface dataset:
Patent GB-226739-A (GB)
Title: Improvements in or relating to means for pre-heating air for furnaces
IPC: F23L15/02
Filed: 1923-10-05
Abstract: 226,739. Owen, W. H. Oct. 5, 1923. Regenerators.-Air for combustion in boiler furnaces is heated in chambers a, a<1>, Fig. 1 arranged side by side and containing plain or corrugated sheet iron plates a<x> over which hot gases and air are passed alternately. The hot gases from the flue c according to the position of the valves d, d<1> pass through one of the chambers a, a<1>, and thence to the flue c<1>, while air entering through the inlet f<1> behind the screen e<1> enters the other chamber and escapes through the outlet f behind the screen e. Where it is desired to heat the air supplied above the grate to a higher temperature than the air supplied to the ash-pit, a modified form of regenerator shown in Fig. 3 is employed. Each regenerator chamber is divided into two sections a<2>, a<3> separated by a chamber a<4> adapted to communicate with an air trunk f<2> provided with an additional reversing valve d<2>. Part of the air heated in the portion a<3> of the regenerator passes to the trunk f<2> and thence to the ash-pit while the remainder is further heated in the portion a<2> and passes thence to the furnace above the grate. Perforated steam pipes g may be arranged at the end of the chambers to free the apparatus from soot and dust. The regenerator may be used in connection with oil-fuel furnaces in which case the portion of the air of higher temperature is supplied in the immediate neighbourhood of the oil spray while the portion of lower temperature is employed to effect the complete combustion of the oil. The regenerator may be arranged horizontally or vertically and in the application to marine boilers may be arranged over the smokebox.
Patent GB-895806-A (GB)
Title: Process and apparatus for the dry cleaning of textiles
IPC: D06F43/08
Filed: 1960-01-27
Abstract: 895,806. Dry-cleaning machines. BOEHLER, M., and WEBER, F., [trading as BOEHLER & WEBER KOMM.-GES.]. Jan. 27, 1960 [Feb. 6, 1959 ; March 7, 1959], No. 2892/60. Class 138 (2). [Also in Group XXIII] Solvent used in dry-cleaning apparatus is recovered by withdrawing air-solvent mixture from the cleaning drum, condensing a substantial amount of the solvent in the withdrawn mixture, and passing the residue through activated carbon in which the remaining solvent is absorbed. The air-solvent mixture is withdrawn from the cleaning drum 1 through a filter 7 by a suction fan 8, and passed to a condenser 12 past a device 25 spraying cooling water. The water-condensate mixture passes through a conduit 13 to a separator 14, and the residual air-solvent mixture passed through a duct 29 to an activated carbon apparatus 17. Part of the residual air-solvent mixture may, if desired, be returned to the drum 1 through a duct 28 by adjusting a flap valve 15. The duct 28 contains a heater 11, and by adjusting flap valves 15, 16 heated fresh air may be admitted to the drum at the end of the cleaning operation for drying the fabrics. The apparatus may comprise two activated carbon units which may be used alternately, as desired. Another embodiment includes a modified condensing system for the solvent.
Patent GB-1237761-A (GB)
Title: Improvements in or relating to mounting devices for electrical couplings
Inventor: PAULL EDITH ROSINA
IPC: H01R13/646
Filed: 1968-01-18
Abstract: 1,237,761. Releasable fastenings. BELLING & LEE Ltd. 17 Jan., 1969 [18 Jan., 1968], No. 2893/68. Heading E2A. [Also in Division H2] A mounting device for one element 4 of a two-part electrical coupling comprises a body of which one side is planar and which is provided with means, i.e. holes 7, 8, to enable it to be secured upon a flat surface of a supporting member with said planar side abutted thereagainst, said body being provided with an internal recess opening in said planar side and adapted to receive and retain said coupling element, a first aperture 2 in another side of said body adjacent to said planar side and opening into said recess, a second aperture 16 in a further side of said body opposed to said other side, said recess being provided with abutment means 14, 15 adapted to receive said coupling element connected to the end of an electric cable 17 entering said recess through said second aperture and, when said body member is secured upon said surface, to hold said coupling element against excessive movement with its mating portion presented within said first aperture. In the construction shown the element 4 is a co-axial coupling element and the body is formed internally with a partition 9 pierced by a slot 10 of which the inner end is semi-circular; spaced from the partition are two pillars 5, 6 which are pierced by the holes 7 and 8 for mounting screws and between the partition and the pillars is a generally U-shaped resilient holding member 12 formed to grip the connector by resilient deformation to resist removal of the connector from the recess.
Patent GB-201580-A (GB)
Title: Improvements in bearings for the cylinders of drying machines
IPC: F26B13/14
Filed: 1922-02-01
Abstract: 201,580. Mycock, W. Feb. 1, 1922. Rollers or cylinders, hollow.-Steam ,tight packing is provided between the hollow shaft and the spherical bearing at the end of the cylinder of a drying machine. The hollow shaft C rotates in a bearing B which is externally of spherical form and is mounted in a spherical seating in the housing A. A packing ring b is forced on to the spherical bearing by a cage K with a screwed stem k. The end of the shaft C is turned down to form with the bearing B, an annular recess adapted to contain packing E, a helical spring e, and a nut G screwed into the bearing. In a modification, the nut G is of channel shape in cross-section and screws on to the outside of the spherical bearing. In a modification the annular recess is formed by a separated part shrunk or screwed on the hollow shaft.
Patent GB-266321-A (GB)
Title: Improvements in or relating to vapour power plants
IPC: F01K17/06
Filed: 1927-02-01
Abstract: 266,321. Siemens - Schuckertwerke Ges. Feb. 17, 1926, [Convention date]. Vapour engines.-In a vapour power plant, a medium is used of which the boiling point at one atmosphere is at least 120‹ C. The medium, e.g. xylol, is heated in a coiled generator 1 at a pressure close to its critical pressure to at least its critical temperature, it then expands in an engine 3 and passes to an air condenser 4, the extensive cooling of the fluid below a temperature of saturation corresponding to its final pressure is avoided. The fluid is returned to the generator by a pump 2. The heat in the exhaust and heat absorbed by the air in the condenser are used for the combustion air. The above plant may be used in conjunction with an ordinary power plant, the condenser heat being supplied to combustion air, and the exhaust vapour heat to heat the feed water.
Patent GB-346493-A (GB)
Title: Improved means of controlling the action of shock-absorbers or snubbers or other devices designed to create frictional or other resistance to the relative motion of bodies or masses
IPC: B60G17/06
Filed: 1930-01-29
Abstract: 346,493. Vibration-damper controls. LOW, C. F. G., Little Orchard, Headington, Oxford. Jan. 29, 1930, No. 2987. [Class 108 (iii).] The retarding effect of a vibration-damper is controlled by utilizing the inertia resistance of a heavy mass mounted so as to be to a considerable extent unaffected by the movements of the body such as a vehicle body on which it is mounted, the relative movements, when the body is subjected to shocks, being transmitted to the controlling element of the damper. In the construction shown in Figs. 1 and 2 applied to a vehicle, the apparatus is mounted on the body and includes a heavy mass 11 on the end of an arm 8 pivoted at 10 in the casing 9. The mass 11 is normally retained in the position shown by the spiral spring 12. The lever 8 is formed with a sector-shaped enlargement 14 having in its curved face a groove in which rests, when the vehicle is stationary, a roller 16 carried by a second lever 17 pivoted at 18 to the casing 9. When the lever 8 moves angularly about its pivot 10, the roller 16 rises out of its recess and the projection 20 on the lever 17 engages a spring contact 21 and closes an electric circuit through the terminals 23, 24 which are connected to electromagnets 6, 7, Fig. 2, and thereby adjust the regulating spindle 2 of a shock-absorber. The lever 17 is controlled by a spring 19 and its movement is damped by a dashpot 28. Two or more of the shock-absorbers on a vehicle may be controlled simultaneously. In a modification the electric relay operating mechanism is dispensed with and the lever 8 adjusts the shock-absorber directly. Fluid-transmission mechanism may be employed between the controlling lever 8 and the shockabsorbers. In a further modification the lever 8 may be mounted on a vertical pivot so as to control movements occurring in a horizontal plane.
Patent GB-689813-A (GB)
Title: Shock-excited oscillatory circuit
IPC: G01S7/521
Filed: 1951-02-07
Abstract: 689,813. Echo-sounding apparatus. BENDIX AVIATION CORPORATION. Feb. 7, 1951 [Feb. 21, 1950], No. 3039/51. Class 118 (ii) [Also in Group XL(c)] The Figure shows an echo-sounder in which the oscillations produced by the shock-excitation of a resonant circuit 13 are applied via a transmission line 12 to a transducer I which may be of the conventional piezo-electric or magnetostriction type. The oscillations from circuit 13 are also applied to an amplifier 16 and via lead 21 to a recorder 24 so that when the moving brush element 23 bridges across from the bar 22 to the segment 25 a baseline 26 is recorded. When the train of sonic or supersonic pressure waves transmitted from transducer 11 are reflected from the sea-bed the echo waves are amplified in unit 16 and applied through the bar 22 and brush 23 to produce a second line 27 whose distance from line 26 is at any instant a measure of the depth of the sea-bed. The resonant circuit 13 is shockexcited by pulses from a pulse generator comprising a capacitor 30 which is charged from battery 28 via the lower portion of inductor 14 whilst thyratron valve 33 is rendered non-conductive by its negative grid potential derived from battery 34. Capacitor 19 is also charged from the potential drop across resistor 20 so that when the brush 23 bridges bar 22 and element 25 a positive pulse is applied to the grid of valve 33 which fires. Capacitor 30 then discharges through inductor 32, the lower portion of inductor 14 and the anode/ cathode path of thyratron 33. Resonant circuit 13 is shock-excited by the sudden current change through the lower portion of inductor 14, and the presence of inductor 32 reduces the peak value and prolongs the duration of the current flow through thyratron 33 thus lengthening the life of the valve. Capacitor 30 preferably resonates with inductor 32 at the resonant frequency of circuit 13. It is stated that the grid resistor 36 increases the potential of the generated oscillations and prolongs the life of thyratron 33.
Patent GB-347686-A (GB)
Title: Improvements in or relating to absorption refrigerating systems
IPC: F25B15/10
Filed: 1930-01-29
Abstract: 347,686. Refrigerating. ELECTROLUX, Ltd., 153, Regent Street, London.- (Assignees of Taylor, R. S. ; 2875, Sedgwick Avenue, Bronx, New York, U.S.A.) Jan. 29, 1930, No. 3046. Convention date, Jan. 30, 1929. [Class 29.] Absorption systems.-In a continuous-cycle non- condensing system having two absorbers, different absorption liquids are used in the two parts of the system. The liquids are preferably immiscible and of different densities, so that they may be separated by flotation. In the system shown, methylamine used as refrigerant is generated from solution in water in a heated generator 10, and passes as vapour by a pipe 14 to a vessel 15, to which the other solvent liquid, trichloroethane, flows from the evaporator 22. The vapour raises the liquid from the vessel 15 through a pipe 16 to an absorber 18 cooled by a water coil 19, and is there absorbed. The solution falls over baffles 20 and is directed through an opening 23 in the lowest baffle to a pipe 21 leading to the top of the evaporator, which is at the same level as the other or first absorber 25. The evaporator and first absorber communicate at top and bottom by gas conduits 26, 27 and a liquid conduit 28, and contain an inert gas such as hydrogen to equalize pressures. The methylamine evaporates into the hydrogen and the gas mixture flows downwards in the evaporator and through conduit 27 to the first absorber, where the methylamine dissolves in the water delivered through a pipe 32 from the generator. The reformed solution flows back to the generator by a pipe 33 and " pumping " pipe 34, 35. A gas vent 30 extends from conduit 27 to a high part of the system. The water and the solution float on the trichloroethane in the pools of liquid at the base of the evaporator and absorber, and the pipe 33 extends up into the solution in the absorber while a pipe 31 for the trichloroethane extends from the bottom of the evaporator. Another arrangement is described in which the pressures are balanced by liquid columns instead of by an inert gas, the evaporator and first absorber being at a high level, while the vessel 15 and the first absorber are combined in one.
Patent GB-875588-A (GB)
Title: Improvements in or relating to electropneumatic braking apparatus
IPC: B60T13/68
Filed: 1958-01-30
Abstract: 875,588. Fluid pressure brakes. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd., SIMMONS, A. W., and DARWALL, M. T. D. Jan. 30, 1959 [Jan. 30, 1958], No. 3092/58. Class 103 (1). An electro-pneumatic braking apparatus comprises an electromagnetic holding valve 12 controlled by a retardation controller 41, a valve 23 responsive to brake pipe pressure to charge or vent brake cylinder 13, and a pressure limiting valve 27 to release brake cylinder pressure in excess of a predetermined value, the release paths 24, 26 for air from brake cylinder 13 through valves 23, 27 being independent, but both being controlled jointly by the valve 12. Electrically controlled braking.-The driver's control device connects application wire 18 and holding wire 20 to a current source through a retardation controller (not shown) to open application valve 11 to supply compressed air from pipe 14 to the brake cylinders via check valve 15 and limiting valve 16, and to energize and close holding valve 12 to prevent release of brake cylinder pressure, the valve 11 being closed when the pressure in the brake cylinders corresponds to the driver's setting. For partial or complete brake release, the current supply to wire 20 is interrupted to open valve 12, air flowing from the brake cylinder initially through paths 24 and 26 until at a predetermined brake cylinder pressure a blow down limiting valve 27, Fig. 2a, 2b (not shown), closes path 26 and release then continuing through path 24. Pneumatically controlled braking.-Triple valve 23, operated on a decrease in brake pipe pressure, supplies compressed air from auxiliary reservoir 22 to cylinders 13, the drop in brake pipe pressure closing a switch 40 to establish a circuit including retardation controller 41, a source and holding valve 12 to close this valve. The retardation controller, of the mercury tube type and operating only on pneumatically controlled braking, is connected to switch 40 which is connected to coil 45 controlling contacts 47 in a lead 48. Holding valve 12 is maintained closed until retardation of the vehicle exceeds the rate set by the retardation controller 41 when the mercury no longer connects leads 42, 43, or when switch 40 is opened on restoration of brake pipe pressure sufficient to operate valve 23 to release braking pressure. On failure of the current source brake cylinder pressure can only be built up to that at which blow down valve 27 opens. A retardation controller of the type described in Specification 779,923 is modified in Fig. 3a, 3b (not shown), to control the holding valve both in electrically and pneumatically initiated braking; the controller includes a piston controlled by brake pipe pressure, to rotate the mercury tube on that pressure decreasing sufficient to operate valve 23 to energize and close the holding valve, the tube also being rotatably adjusted through a cam and roller connection according to the position of the driver's brake controlling device governing electric and pneumatically initiated braking.
Patent GB-1024037-A (GB)
Title: Phenylsilsesquioxanes
IPC: C08G77/06
Filed: 1963-01-24
Abstract: A benzene-soluble phenylsilsesquioxane, having an intrinsic viscosity in benzene of at least 0.4 decilitre per gram when measured at 25 DEG C., is made (1) by heating a preformed octaphenylsilsesquioxane with an alkaline rearrangement and condensation catalyst until a prepolymer having an intrinsic viscosity of from 0.01 to 0.35 is obtained, (2) isolating the prepolymer, and (3) heating the prepolymer at elevated temperature in a solvent for the prepolymer in the presence of an alkaline rearrangement and condensation catalyst to yield the desired polymer. The starting material can be made from PhSiCl3 by methods described in U.S. Specification 3,000,858, and this can be converted into the prepolymer by heating it in a polar solvent, e.g. chlorobenzene, o-dichlorobenzene and chlorinated diphenyl, in the presence of an alkaline catalyst, e.g. K, Cs or Rb-hydroxide, tetramethyl- or tetrabutyl-ammonium hydroxide, trimethylammonium butoxide, tetraethyl- or tetrabutyl-phosphonium hydroxide, or the K salt of methyl- or phenyl silane triol either alone or in the form of an alcoholate.  The solvents used in step (3) are diphenyl and/or diphenyl oxide, methylphenyl ether, ethylphenylether, cyclohexane, benzonitrile, mesitylene, durene, m-dimethoxybenzene, benzene and toluene.  Examples 1 and 2 describe the preparation of (PhSiO 3/2 )8 and the prepolymer respectively, and examples describe the polymers of present invention and the prior art respectively.  Fillers, e.g. SiO2, C black, TiO2, Fe2O3 and metals, plasticizers, dyes and pigments may also be added.  Uses.-For coating metal conductors; in film form as slot liners and as end turn winding insulation in motors; for rendering textiles heat-resistant; for bonding surfaces; and for making laminates (see Division B5).
Patent GB-578839-A (GB)
Title: Protection of structures against projectiles
IPC: F41H5/04
Filed: 1942-03-10
Abstract: Surfaces are rendered bullet-proof by being coated with a composition consisting of about 75 per cent of a hard aggregate such as quartzite, flint, granite, gravel, &c., 13-16.5 per cent of a bituminous binder, such as bitumen or coal tar pitch, and a light-weight filler, such as sawdust, ground wood, powdered cork, peat, flaxshires, hydrated lime or light-weight mineral material. The coating may have a metallic reinforcement and may be applied to a steel backing plate.
Patent GB-159404-A (GB)
Title: Mechanical stoker
IPC: F23K3/10
Filed: 1920-02-02
Abstract: 159,404. Roach, J. H. Feb. 2, 1920. Grates; air supply, regulating; mechanical stoking.-In an underfeed stoker comprising a retort 13 with grate bars on either side, the grate bars, together with a number of interposed slicer bars, are operatively connected with the fuel pusher in such a way that they perform a complete to and fro movement for each forward or backward movement of the fuel pusher. Further, the air supply to the fuel over the retort is at a higher pressure than that for the grate areas. The connection between the fuel pusher and the grate bars comprises a pin 23, Figs. 6 and 8, reciprocating with the fuel pusher and forming the connecting-pin of toggle-links 24, the outer ends of which are connected through levers 27 with arms 32 of rock-shafts 30, Figs. 2 and 8. Each rock-shaft 30 has a rib 34 which reciprocates the grate-bars and arms 45 by which the slicer-bars, disposed at intervals between pairs of ordinary grate-bars, are oscillated. Air is supplied beneath the trough, to issue through tuyeres 48 therein, by a conduit 47, and from this conduit a valve 53 supplies a reduced pressure through a cross conduit to the conduits 49 below the grates. Lateral contacting ribs are formed on the grate bars in vertical alignment with the walls of the conduit 47, so as to maintain the division between the areas of different pressure despite the movements of the gratebars.
Patent GB-1140023-A (GB)
Title: Improvements in and relating to distance protective apparatus
IPC: H02H3/40
Filed: 1966-01-24
Abstract: 1,140,023. Protective systems. COMPAGNIE DES COMPTEURS. 24 Jan., 1966 [22 Jan., 1965], No. 3177/66. Heading H2K. A distance protective arrangement has comparison means 7 for comparing the instantaneous polarities of first and second voltages U4, U2 when the instantaneous magnitude of a third voltage U3 is zero. The first voltage U4 is a function of the voltage U<SP>1</SP> of the protected line or the difference between a voltage proportional to the line voltage U<SP>1</SP> and the voltage U1 across a reference impedance 4 energized by current proportional to the line current. The second and third voltages U2, U3 are derived from reference impedances 5, 6 energized by a current proportional to the line current. The third voltage U3 is applied to a pulse generator 10 which applies short duration pulses to the comparator 7 when the voltage U3 passes through zero causing comparator 7 to provide an output signal if the polarities of the voltages U2 and U4 coincide, the signal being amplified by a monostable amplifier 12 for actuating a cut-out device. In Fig. 5 (not shown), a single inductor is used in place of the reference impedances 4, 5. In a further arrangement, Fig. 6 (not shown), the first voltage is a function of a voltage to earth of the line and the pulse generator is energized by the zero-sequence current component, the arrangement being response to phase-to-earth faults.
Patent GB-876594-A (GB)
Title: A friction disc for electromagnetically actuated friction clutches or brakes
IPC: F16D65/14
Filed: 1958-01-31
Abstract: 876,594. Friction clutches. EATON MANUFACTURING CO. Jan. 31, 1958 [Feb. 12, 1957], No. 3264/58. Class 80 (2). [Also in Group XXXIV] A plate 20 of an electromagnetic friction clutch or brake (clutch only shown) comprises an inner portion 100 and an axially spaced outer portion 102 to which latter friction segments 22 are attached by welding, along a raised radial centre line to provide the following features. The centre of gravity of the friction segments 22 lie in the plane of the inner portion 100 of the plate whereby centrifugal force does not tend to produce coning of the plate. The parts 110 of each segment on each side of the raised central abutment line are axially spaced from the plate portion 102 to provide a passage for cooling air fed through openings in the plate. As shown, the raised centre line of each segment is of V-form welded on a rib 108 in the plate, the ribs 108 alternating with inclined ribs 106. In Figs. 8-10 (not shown), the portion 102 is flat and the V-shaped parts of the segments are welded into radial slats therein and vibration of the free sides 110 of the segments is prevented by their contact with support tabs pressed from the plate. The clutch, Fig. 1, comprises a driving hub 14 carrying polepieces 46, 48; a coil 50 embedded in plastic 52; and an inset friction ring 54. When the coil 50 is energized through brushes 62 and insulated slip rings 72, 78, the driven clutch plate 20 moves axially against return springs 34 on guide pins 24 carried by a hub (not shown) whereby its segments 22 engage frictionally the polepieces 46, 48 and ring 54.