baber/WOPTO huggingface dataset:
Patent GB-784220-A (GB)
Title: Improved means for supplying sterilised gas under pressure
Inventor: MOYES SIDNEY JAMES EDGAR
IPC: F02C6/10
Filed: 1954-05-12
Abstract: 784,220. Gas turbine plant. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. April 26, 1955 [May 12, 1954], No. 13950/54. Class 110(3). A gas turbine power plant comprises a compressor 2, a turbine 3, a combustion chamber 4, a main heat exchanger 6 of the regenerative or recuperative type, at least one heat exchanger 8, a cooler 7, fuel supply source 5 and a chemical processing plant 1 arranged as shown. The compressor and turbine units may be of the axial-flow type and the compressor may be provided with a filter in either its inlet or outlet. A device 11 responsive to the pressure in the inlet duct of the plant 1 controls the throttle valve 12 of the turbine 3 and alternatively or additionally controls the output of an electric generator 13. A limiting-temperature-responsive device 21 controls the supply of fuel to the combustion chamber. In a modification, Fig. 2 (not shown), pressure-responsive devices disposed in the inlet of the plant 1 serves to control the fuel supply to the member 4 and an additional combustion chamber disposed between the members 1, 3. In a second modification, Fig. 3, the compressed air supplied to the plant 1 is indirectly heated in the combustion chamber 4a, 4b and supplied by a compressor 2 driven in conjunction with the compressor 9 as shown. The embodiment of Fig. 3 may incorporate control means as described with reference to Figs. 1 or 2.
Patent GB-515621-A (GB)
Title: Improvements in or relating to four-stroke cycle internal combustion engines
IPC: F02B75/24
Filed: 1938-05-11
Abstract: 515,621. Four-stroke cycle engines. NAPIER & SON, Ltd., D., and HALFORD, F. B. May 11, 1938, No. 14020. [Class 7 (ii)] 'Four banks, each of six cylinders, are arranged in H-formation, and are associated with pistons driving two crankshafts X, Y, geared together by pinions F, F\ F<2>. Corresponding pistons in adjacent banks on each side of the plane of the crankshafts reach their dead-centres at the same time, but 360 degrees out of phase. One or two propeller shafts may be driven ; in the second case the shafts are coaxial and rotate in opposite directions.
Patent GB-712303-A (GB)
Title: Burden release device for parachutes or other carriers
IPC: B64D17/38
Filed: 1952-06-04
Abstract: 712,303. Parachutes. STAATS, H. P. June 4, 1952 [Oct. 8, 1951], No. 14060/52. Class 4 [Also in Group XXV] In a device for releasing a load from a parachute or other carrier, of the kind comprising clasp members connecting the load with the device and having a releasable joint between them locked by a surrounding sleeve when the parachute is airborne and uncovered by the sleeve only after an interval controlled by dash-pot means associated with the sleeve and clasp members whereby the latter are then conditioned for instant release of the parachute from the load when the load contacts the ground, the clasp members are slidably arranged in series one above the other inside the sleeve, the lowermost clasp member has on it means for holding the load and the upper clasp member is on the lower end of an element of the dash-pot means. The sleeve 12, Fig. 2, has secured at its upper end a ring fitting 14 for attachment to the parachute and upper and lower clasp members 18, 41, are slidably mounted in the sleeve, the member 41 being provided with a ring fitting 42 for attachment to the load. The clasp member 18 has a liquid containing cylinder 22 slidably associated with a piston 35 secured on a piston rod 34 fixed to the fitting 14, the upper end of the cylinder being sealed by a stop plug 25 slidable on the rod 34. The upper and lower parts of the cylinder are in communication with one another as by a transverse part 38 and longitudinal passage 39 in the rod 34. Before the load is discharged from an aircraft the device is assembled as shown in Fig. 2 the cylinder 22 being filled with liquid. When the load is discharged from the aircraft the members 18, 41 are drawn down in the sleeve 12, the liquid passing from the upper to lower port of the cylinder 22 through the port 38 and passage 39 at a predetermined rate. The clasps 18, 41 finally adopt the positions shown in Fig. 3, and remain connected together so long as the load is airborne.
Patent GB-381576-A (GB)
Title: Improvements in and relating to electrical apparatus and electrodes therefor
IPC: H01H1/021
Filed: 1931-07-07
Abstract: An electrode subject to destructive arcing in operation comprises a porous body of a metal of high melting point in the pores of which is embedded a metal of high thermal and electrical conductivity, amounting to at least 25 per cent of the electrode material. Preferably lightly-pounded tungsten powder is sintered in vacuo and the interstices remaining in the body are filled with the other metal which may be copper, silver, or a nobler metal. Where silver is used as the filling the tungsten powder is superficially carbonized by heating carbon present in the vacuum furnace, the body then being soldered to its carrier.  In the case of copper, the body is cast on to its carrier in vacuo in the manufacture thereof.  The percentage of filling may be as high as 50 and is determined by the pressure applied to the powder during sintering and by the sintering temperature.
Patent GB-543845-A (GB)
Title: Improvements in, or relating to, tail wheel mountings of aircraft
IPC: B64C25/50
Filed: 1940-09-13
Abstract: 543,845. Fluid friction damping devices. TURNER MANUFACTURING CO., Ltd., DUMBELL, P. B., and MILNER, H. C. Sept. 13, 1940, No. 14156. [Class 108 (iii)] [Also in Group XXXIII] A fluid-friction damping device of the oscillating vane type as described for instance, in Specification 26150/08, [Class 108 (iii)], applied to the tail wheel mounting of an aeroplane to check oscillation about a vertical axis. The damping device is constructed with a rotor B mounted eccentrically in an approximately cylindrical chamber a<SP>2</SP>, the vanes comprising a blade or blades b movable in slots in the rotor. Rockers e form a seal between the blades b and the casing, leakage ports f being provided in the blade. One of these ports may be covered by the rotor B when deflected sufficiently far from the central position. The ends of the blades may be rounded and the leakage ports may be dispensed with, sufficient leakage being allowed between the ends of the blades and the casing. The blade may be divided, the two parts being pressed outwards by springs. Liquid is supplied through a filler cap J and the supply is maintained under pressure by a spring pressed plunger M.
Patent GB-456759-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q1/30
Filed: 1935-05-14
Abstract: 456,759. Exchange systems. AUTOMATIC ELECTRIC CO., Ltd., Strowger Works, Liverpool. May 14, 1935, No. 14162. Convention date, May 24, 1934. [Class 40 (iv)] A neon lamp N and the receiver R are connected directly across the line at a substation so that both are operated by the calling current which may consist of audiofrequency A.C. superimposed on high-voltage D.C., interrupted high-voltage D.C., or highvoltage A.C. The use of such a circuit at party-line substations avoids transmission losses due to ringing loops at other stations on the line. During conversation the neon lamp is shunted by the transmitter T. The wanted party on a party line is selected by code signals. In the system shown, calling lamps L at the exchange are directly operated over the substation loops and the cord circuit employs a single supervisory lamp AL lit by a common feed relay 9 as long as either party has his receiver off. The Specification as open to inspection under Sect. 91 states also that party-line selection may be effected by using neon lamps which break down on different voltages. This subject-matter does not appear in the Specification as accepted.
Patent GB-478046-A (GB)
Title: Improved knitted fabric and articles and method of making the same
IPC: D04B1/00
Filed: 1937-05-21
Abstract: 478,046. Knitting. HEMPHILL CO. May 21, 1937, No. 14200. Convention date, June 18, 1936. [Class 74 (ii)] A knitted fabric or article, e.g. a stocking, has a rib portion and a continuing portion knitted as plain work, the plain wales of the rib portion being continued as plain wales of the plain portion and the discontinued rib wales being behind and across the plain wales to start intermediate plain wales. The Figure shows a fabric produced by knitting on alternate cylinder needles only at courses 5 and 6 and then shogging the dial needles one needle space to bring them into alignment with previously inactive plain needles. In a modification, the last rib course is followed by a number of plain courses knitted on cylinder needles while the last dial loops are retained by the dial needles and then carried across two needle spaces to continue as plain wales.
Patent GB-1506425-A (GB)
Title: Aluminium alloys having mechanical properties and workability and method of making same
IPC: C22C21/02
Filed: 1975-04-07
Abstract: 1506425 Al-Si alloy HITACHI Ltd 7 April 1975 [20 April 1974] 14211/75 Heading C7A An Al-Si alloy of composition:- Sr, Na, P optionally present wherein the entectic silicon is present in the form of tabular crystals mean width not more than 5Ám. The alloy may be produced by continuous casting at a cooling rate of at least 10C/second and may be hot or cold worked, annealed for one hour at 350C- 430C to spheroidize the entectic silicon and optionally solution treated and aged.
Patent GB-446367-A (GB)
Title: Improvements in and relating to electric condensers
IPC: H01G9/00
Filed: 1935-05-15
Abstract: 446,367. Condensers. PLESSEY CO., Ltd., Vicarage Lane, Ilford, Essex. May 15, 1935, No. 14213. Convention date, May 15, 1934. [Class 38 (ii)] [See a.lso Group XXXVI] A condenser comprises in combination, a hollow openended metallic core 10, a roll 11 of condenser foil on the core, intermediate its ends, an outer metallic housing 12 disposed about the core and roll and having inturned flanges at its ends, with insulating closure members 14 between the housing and the hollow core, held by the flanges, and with apertures to receive the core, and projections 18 on the core to locate it between the insulating members. The housing may be tubular and more than one core and roll may be enclosed in one housing as shown. Specification 424,831, [Group XXXVI], is referred to.
Patent GB-1007650-A (GB)
Title: Improvements relating to structures comprising panels secured to framework
Inventor: ROBILLIARD LEONARD THOMAS
IPC: E06B3/54
Filed: 1962-04-12
Abstract: 1,007,650. Structural elements. DEXION Ltd. March 28, 1963 [April 12, 1962], No. 14271/62. Heading E1K. [Also in Division A4] Metal framework members 7 for furniture and other equipment are basically of angle section, with U-sectioned return flanges 10 which abut the panels 14. Specification 923,964 is referred to.
Patent GB-1081191-A (GB)
Title: Magnetohydrodynamic (mhd) generator
IPC: H02K44/14
Filed: 1965-04-05
Abstract: 1,081,191. Generators operating by electromagnetic interaction with fluids. KERNFORSCHUNGSANLAGE JULICH DES LANDES NORDRHEIN - WESTFALEN E.V. April 5, 1965 [April 16, 1964], No. 14271/65. Heading H2A. An MHD generator having a rectangular hollow helical coil as the duct for the conductive fluid with a longitudinal magnetic field produced by a coil, preferably a superconductive coil, surrounding the outer wall of the duct structure. The radially outer and inner walls of the duct are provided with electrodes and the remaining two walls are of insulating material. In a modification the electrode walls are helically wound metal strips, e.g. of tantalum, which are flanged at the top and bottom edges to support the ceramic disc forming the insulating walls of the duct.
Patent GB-696816-A (GB)
Title: Improvements in or relating to snap-action electric switches
Inventor: EVERITT LAURIE HAROLD RAYMOND
IPC: H01H5/18
Filed: 1950-06-09
Abstract: 696,816. Press-button retractive switches; tumbler switches. ASHLEY ACCESSORIES, Ltd. June 11, 1951 [June 9, 1950; June 9, 1950], Nos. 14407/50 and 14409/50. Class 38 (v) A snap-action switch comprises a trifurcated blade spring 13, the outer links of which are corrugated at 14 and are clamped to pillars 12 on the base by screws or by pins on the cover 18, the centre bowed limb being acted upon on one face by a dolly 20 and on the opposite face by a spring plunger 25. Counterclockwise movement of the dolly snaps the spring 13 over-centre to open contacts 16, 27 and depresses the plunger 25, which restores the spring 13 to the position shown when the dolly is moved back again. The open position of the spring is determined by stops 26 which may form further contacts, and one contact 27 may be insulated from the spring, the contacts 27 then acting to bridge two pairs of fixed contacts, Figs. 3-5 (not shown). The spring may be actuated by a pushbutton, Fig. 6 (not shown), the plunger 25 restoring the spring when pressure on the button is released, and in a further arrangement, Fig. 7 (not shown), the spring 13 is mounted at one end. The centre limb of the spring may be secured with the operating member and restoring means acting on one or both outer limbs.
Patent GB-576656-A (GB)
Title: Improvements in facsimile transmission systems and the like
IPC: H04N1/00
Filed: 1943-09-04
Abstract: 576,656. Facsimile transmission. DEHN, F. B. (Press Wireless, Inc.). Sept. 4, 1943, No. 14476. [Classes 40 (iii) and 40 (v)] Marking signals which may represent one tone or shade in facsimile transmission, e.g. black, are transmitted from a source 1 and spacing signals of another frequency which may represent white, are continuously transmitted from a source 32. Signals of both frequencies are fed through an amplifier 13 to the limiter 18a, 18b, 21, which just limits the spacing signals, the amplitude of the marking signals being many times that of the spacing signals so that when marking signals occur, the spacing signals are suppressed in the limiter. The signal output from the limiter is fed through a low-pass filter 29 and channel L, which may be a radio channel, to a receiver 30. In the limiter, the anodes of rectifiers 18a, 18b are positively biassed by space current flow in the triodes 21 and the triodes are negatively biassed. The triodes are operated with low anode voltage so that during each half-cycle one triode operates to plate current cut-off and the other operates with grid current. Signals from source 1 are fed to amplifier 13 through a threshold limiter comprising diodes 4, 5 arranged to operate on positive and negative half-waves respectively and having their cathodes positively biassed with respect to their anodes. Figs. 2, 3 and 4 (not shown) give alternative connections for the diodes 4, 5.
Patent GB-501823-A (GB)
Title: Improvements in electric switches
IPC: H01H19/58
Filed: 1937-05-25
Abstract: 501,823. Mechanical switches without quick action. MALLORY PATENTS HOLDING CO., Ltd. May 25, 1937, No. 14487. Void. Convention date, Aug. 1, 1936. [Class 38 (v)] A multi-way switch for use in radio apparatus comprises a series of insulating rotor discs 41-44 mounted for rotation in central circular apertures in insulating stator discs 21-24 held in spaced relation by clamping rods (not shown). Each rotor comprises a pair of discs such as 42a, 42b clamped together so that the outer flanged edges 66 just overlap the aperture in the stator disc and serve to position the rotor. Rotor contacts 72, 73 are mounted in recesses in the outer faces of the rotor discs and may be clamped by a rivet 74 which serves to connect the contacts electrically. Where it is not desired to connect the contacts they are clamped by rivets such as 78, 79 to the separate discs, the inner heads of the rivets being accommodated in recesses on the inner faces of the rotor discs. The rotor contacts engage clip shaped stator contacts which may be of the same length such as 52e. 52f or of different lengths such as 52g, 52i so that with rotor contacts of different angular and radial extents any desired switching combination may be effected. The switching positions are determined by a pair of rollers 39 carried by a spring arm 32 fixed to the operating spindle 31 and engaging a series of projections 37 on an index plate 20. The limits of rotation are set by an arm 33 engaging stops 38. The stator contacts, Fig. 10, comprise spring strips bent double to provide contact jaws 56, 57 and a soldering tag 52. The middle portion rests on the stator disc and is held by a staple 60, the arms 61, 62 of which are passed through slots 51 in the stator and engage side recesses 155 in the lower arm 56 and are then bent over the upper arm 57. A single staple 60 may serve to mount a pair of contacts on opposite sides of the stator, such as 62e, 52f in Fig. 1, in which case a sheet of insulating material 75 is interpcsed between the staple 60 and one of the contacts. Segmental apertures 50 are cut in the stator discs to reduce capacity effect for high frequency work.
Patent GB-276105-A (GB)
Title: An improvements in or relating to presses
IPC: B30B1/18
Filed: 1926-06-09
Abstract: 276,105. Fawcett, Ltd., T. C., Fawcett, D. L., and Clough, W. June 9, 1926. Presses, mechanical.-Relates to presses of the type in which a screw a, Fig. 1, works through a fixed nut and is fitted at its upper end with a disc b adapted' to be engaged by friction discs d, c, and consists in the provision of primary means in the form of a pneumatic cushion or dash-pot for holding the screw in its arrested position. As shown, a cross-bar f, Fig. 2, supported above the disc b, carries a cylinder g' within which works a piston h faced with friction material m adapted to be engaged by the disc in its ascent; the cylinder g<1> being furnished with a hole a<2> or valve to constitute a dash-pot. The disc is held by springs k encircling rods i carried by lugs or extensions h<2> of the piston h.
Patent GB-826790-A (GB)
Title: Improvements in or relating to the preparation of cyclopentanophenanthrene compounds
Inventor: KIRK DAVID NEVILLE
IPC: C07J75/00
Filed: 1957-05-07
Abstract: The invention comprises the trimethylacetate valerionate, heptylate, undecylate, cyclopentylpropionate, phenylacetate, phenylbutyrate and hexahydrobenzoate of 4-chlorotestosterone, and a method for the preparation of 17-acyl derivatives of 4-chloro-testosterone by reacting 4chlorotestosterone with a carboxylic acid chloride or anhydride e.g. in the presence of a basic reagent.  In the examples the esters detailed above are prepared.
Patent GB-133080-A (GB)
Title: Improvements in or relating to Automatic Guns.
IPC: F41A19/30
Filed: 1917-10-09
Abstract: 133,080. Officine di Villar Perosa. Nov. 20, 1916, [Convention date]. Machine guns.-Relates to automatic guns having a sliding breech-bolt which is rotated to unlock it by a short recoil of the barrel, and consists in the combination of the following features : (a) a device for rotating the breech-bolt to lock it, comprising a spring-pressed lever 61, Fig. 1, which, when the breech-block reaches its forward position, engages the bolt lever 8 and depresses it into a wide recess 10 at the forward end of a longitudinal slot 9, (b) an unlocking-device comprising a bell-crank lever 64, 65, Fig. 1, having one arm 65 behind the bolt lever 8 and the other arm 64 underneath, (c) firing-mechanism comprising a thumb-lever 40, Fig. 4, an intermediate lever 44, and a sear 47 having a sliding pawl 46 engaged by the intermediate lever, (d) a buffer spring 68, Fig. 4, acting rearwardly on the barrel to prevent the breech-bolt from rebounding when it reaches its forward position, by allowing the barrel to yield under the blow, (e) a catch for securing the magazine, comprising a sliding bolt 77, Fig. 4, actuated by a rack and pinion, (f) a handle block 29, Figs. 1 and 4. mounted by means of a bayonet-joint and locked by a catch 37, (g) an ejector, which also serves as a detent to hold the breech open, comprising a lever 52, Fig. 9, acted on by a spring 54 and at the rear having a projection which can be depressed by a thumbpiece into engagement with a recess 58 in the bolt, (h) a foresight 85 carried by an adjustable ring 88 on the barrel casing, and a backsight 87, and (i) a safety device, acting on the sear, comprising a rotary spindle 95, Fig. 4, having a cutaway part. The pivot pins used in the gun are made easily detachable, being secured by rotary joints comprising a lateral stud on the pin, a transverse groove in the pivot-hole, and a spring which forces the stud into a locking-recess in the transverse groove. Specifications 3222/12 and 14838/12. [both in Class 119, Small-arms], are referred to.
Patent GB-810794-A (GB)
Title: Improvements in or relating to wall structures for buildings
IPC: E04F13/14
Filed: 1956-06-13
Abstract: 810,794. Walls; building units. FINDLAY, G. K May 8, 1957 [June 13, 1956], No. 1467/57. Divided out of 810,793. Classes 20(4) and 87(1) A wall structure for buildings, simulating conventional brickwork, masonry, &c. is formed of a number of overlapping units arranged on horizontal components 2 and a waterproof sheet 14 interposed between the overlapping surfaces. The units which may be slabs or tiles are mounted by the engagement of extensions 1 on the top rear edge over the horizontal components or timber battens 2 fixed to vertical members 3 of a building framework which may be of timber, steel or reinforced concrete, preformed, drilled, ridged or grooved to correctly position the members 2. The panel which may be made of mouldable material such as concrete, asbestos, clay, &c. has a lower panel 4 and an upper panel 5 each lying in a vertical plane offset from each other and connected by a thickened neck 6 and are hung so that the panels 4 in one row overhang the panels 5 of the row below. The surface of each panel 4 is formed with grooves 7 arranged to give normal brick dimensions and the edges are recessed at 21, 22 to give continuity of the groove dimensions on assembly. The grooves and recesses on the assembled surfaces are pointed as at 23 to complete the appearance of continuous brickwork, the panel joints being obscured. The units 4, 5 are retained in position on the battens 2 by clips either formed from a single piece of wire as shown in Fig. 5, or of sheet metal with perforated horizontal parts in place of the arms, the pointed ends 12 being driven into the battens 2. The arms 11 of the clip pass over recesses 13 in the panels as shown and the loops 8 serve to retain the waterproof sheet 14, the upper ends of which are fixed to the front surfaces of the battens 2. The joints between the panels are sealed by a metal angle member 15 attached by copper tacks 16 and plus 17 to the neck portion 6, mastic 18 being forced in the space provided. In modifications, Fig. 4 (not shown), the angle member 15, tacks 16 and plugs 17 are omitted from a a sealed joint, Fig. 6 (not shown), the pointed ends 12 of the retaining clip are replaced by loops through which nails are driven to secure the clip in position. Fig. 8 (not shown), illustrates the member 15 and in Fig. 9 (not shown), a modification of this member used for right angled corners is shown.