baber/WOPTO huggingface dataset:
Patent GB-831272-A (GB)
Title: Fuel control for gas turbine power plants
IPC: F02C9/16
Filed: 1956-02-09
Abstract: 831,272. Gas-turbine plant UNITED AIRCRAFT CORPORATION. Feb. 10, 1956 [Feb. 24, 1955], No. 4069/56. Class 110 (3). [Also in Group XXIX] A fuel control for a gas-turbine power plant having a compressor section with one or two compression stages 12, 16 and a turbine section having one or two turbine stages 14, 18, comprises a fuel throttle valve 44 operated by a diaphragm 80 actuated in response to discharge pressure from the compression section via pipe 90, a valve 136 actuated in response to compressor section inlet temperature for bleeding the discharge pressure, and a valve arrangement 110, 114 in series with this bleed valve and actuated in response to turbine speed also for bleeding the discharge pressure, the turbine speed being the speed of the first turbine stage where the turbine section has two stages. The fuel valve 44 of the gas-turbine having twin spools 12, 14 and 16, 18 respectively is actuated by compressor outlet pressure via 90 and restriction 92 acting on diaphragm 80. The pressure in diaphragm chamber 96 is bled to atmosphere through a hinged valve 110 actuated by flyweight 108 driven from spool 16, 18 and loaded by a pilot set spring 100 and through a parallel shuttle lift valve 114 first opening and then closing as speed increases so that more and then less air is bled from the chamber to first decrease and then increase the ratio of fuel flow to compressor pressure. Discharge pressure is also bled through a valve 136 in series with valves 110, 114 and actuated by a bellows 132 responsive to the temperature of compressor inlet air passing around the bellows via pipe 26, and through a parallel oppositely acting valve 138 also actuated by the bellows 132. A further parallel bleed 164 may be controlled by a governor valve 160 moved in response to speed of the spool 12, 14. Opening movement of the fuel valve 44 is opposed by a spring and an evacuated bellows 72 responsive to atmospheric pressure.
Patent GB-1070041-A (GB)
Title: Improvements in or relating to slide projectors and slide carriers
IPC: G03B23/10
Filed: 1966-01-31
Abstract: 1,070,041. Optical slide projectors. SAWYER'S Inc. Jan. 31, 1966 [April 29, 1965], No. 4114/66. Heading G2J. In a slide projector, slides are carried in a co-planar corner-overlapping ring formation around the periphery of a rotatable disc (18), Fig. 10 (not shown), having an aperture (35) for each slide and a corresponding planar surface (30) inclined to the plane of the disc, each slide being held against a surface (30) by tabs (38), (40) and (42). Disc (18) is rotationally indexed when a shutter plate (62), Fig. 4 (not shown), is reciprocated either manually by handle 82 or by remote control through motor-driven gear (74) and a crank-arm (73) whose slot (72) receives a pin (70) on the bracket (66) attached to plate (62). The tip of a driving pawl (88), actuated by the movement of plate (82), engages a series of teeth in disc (18) for indexing, the disc rotating on guides (106), (107), (108) about an axis slightly inclined to the optical axis to compensate for the inclination of each slide. A stop pawl engages teeth (53), Fig. 10 (not shown), on the other side of disc (18) to halt its rotation when an aperture (35) is aligned with projection apertures in parallel plates carrying the guides (106, 107, 108), the gap between these plates being closed by retractable handle 110 when the projector is not in use.
Patent GB-548253-A (GB)
Title: Improvements in or relating to photographic objectives
IPC: G02B9/34
Filed: 1941-03-27
Abstract: 548,253. Lenses. KODAK, Ltd. (Eastman Kodak Co.). March 27, 1941, No. 4155. [Class 97 (i)] In a photographic objective having focal length F and consisting of two outer positive components and two inner meniscus components highly concave to a diaphragm between them, the third component is a cemented triplet having successive surfaces with radii R 6  ... R 9 , R 6  being negative and numerically between 0.3 F and 3 F, R 7  being positive and greater than 0.5 F, R 8  being positive and between 0.3 F and 3 F, and R 9  being negative and numerically between 0.25 F and 0.75 F; the refractive index of the middle element is at least 0.15 greater than that of the front element, and its dispersive index may be at least 20 less. The refractive index of the rear element of the triplet may be between those of the other elements, and the indices, from front to rear, may be, respectively, 1.46, 1.72 and 1.6. The radii of the surfaces of the first and second components may be, respectively, R, between 0.3 F and F, R, numerically greater than F and positive or negative, R 3  greater than 0.3 F and less than 0.6 F, and R 5  between 0.2 F and 0.5 F. The cemented surface of the second component may have a radius R, equal to infinity or - 3 F. Data for three examples are set out in the Specification. Specifications 548,252, 548,254, and 548,256 are referred to.
Patent GB-123835-A (GB)
Title: Improvements in Detergent Soaps and in the Means for and in the Method of Making the same.
Inventor: DOUGLASS GEORGE WHITEWOOD
IPC: C11D9/24
Filed: 1918-03-09
Abstract: 123,835. Douglass, G. W. March 9, 1918. Cleansing-compositions.-A detergent for washing fabrics is composed of 19-24 parts of soap, 6 parts of spirit, 30 parts of carbonate of soda, 15 parts of bi-carbonate of soda, 20-25 parts of water, and, optionally, up to 10 parts of silicate of soda. As spirit, naphtha, benzene, carbon tetrachloride, or petrol may be used.
Patent GB-577083-A (GB)
Title: Improvements in or relating to mattresses
IPC: A47C31/02
Filed: 1944-03-07
Abstract: 577,083. Mattresses. BERESFORD & HICKS (BEDDING), Ltd., and HICKS, R. B. March 7, 1944, No. 4258. [Class 52 (iv)] A mattress has a spring interior 1 enclosed by fabric sheets 2, 3 and layers of fibre 5, 7 on which are placed further layers of filling material 4, 6 one layer being of wool and the other of cotton and the whole being enclosed in a casing 9. Specification 271,774, [Class 52 (iv)], is referred to.
Patent GB-1219325-A (GB)
Title: Improvements in and relating to apparatus for processing photographic material
Inventor: CARRIE SERGE
IPC: G03D13/00
Filed: 1968-01-26
Abstract: 1,219,325. Processing tanks. S. CARRIE. Jan.26, 1968 [Feb.6, 1967; June 23, 1967], No.4281/68. Heading G2A. In a method of processing photographic material, the material is supported in a rotatable cylindrical tank 1 in fitted wire trays, the tank being reciprocated so as to pass the processing liquid over the material; the angle of rotation is limited to 310 degrees by cams 7, 8 actuating switches 10, 11 to reverse the drive motor. At the end of the processing time, a further switch is actuated causing further rotation of the tank 1 until a discharge aperture 6 reaches the lowermost position, simultaneously one end of the drum is raised by cam 13 to facilitate discharge. The tank is enclosed in a casing 17, and heated by thermostatically controlled hot air. A series of tanks (26.. .30), (26<SP>1</SP>...30<SP>1</SP>) Fig.3 (not shown) may be provided, under programmed control, for supplying processing and developing liquids to the tank.
Patent GB-697378-A (GB)
Title: Improvements in or relating to feeding devices for molding machines
IPC: B22C5/12
Filed: 1950-02-10
Abstract: 697,378. Rotary - mould - table compressionmoulding machines. ARMSTRONG CORK CO. Feb. 10. 1950 [Feb. 28, 1949], No. 4360/52. Divided out of 697,316. Class 87 (ii) Moulding powder is fed into a mould cavity, which may be in a rotary moulding machine of the kind described in Specification 697,316, by a feeding shoe 74 comprising a bottom part 75 fixed on an arm 76 and a top part fixed on an arm 71. The arms are pivotally mounted at 72. The feeding shoe is moved towards the'mould by a spring 73, and as the shoe approaches the mould, a stop 80 on the arm 76 engages a stop 81 on the column 82 to stop the movement of the bottom of the shoe and thus allow the shoe to deposit the material in the mould. The arms are moved away from the mould by a cam 67. If a moulded article has not been removed from the mould elements, a switch 61 is engaged by the article to energize a solenoid which raises a pin 63 which prevents the shoe from moving over the mould. The moulding powder may be either loose or a preheated pill.
Patent GB-472376-A (GB)
Title: Improvements in or relating to loose ball valve assemblies
IPC: F16K1/14
Filed: 1937-02-15
Abstract: 472,376. Valve closure members. HILLEN, J. A. V. M. Feb. 15, 1937, No. 4509. [Class 135] In a valve device in which a loose ball valve 1 is pushed off its seat 3 by a plunger 2 provided with grooves or conduits 4 which allow a progressively larger flow as the valve 1 is unseated, the grooves or conduits terminate short of the end of the plunger adjacent the ball which therefore effects a final closure only after all the grooves or conduits 4 have been obstructed. Water hammer is thus eliminated. The conduits 4, Fig. 1, open at different levels to effect the progressively increasing flow. The valve 1 may be moved from its seat by a tilting movement by cutting off the end of the plunger obliquely. The end of the plunger is also dished on its underside. The conduits may be replaced by open grooves of triangular, rectangular or semicircular section. One or more helical grooves or a series of slanting tapered grooves may be employed. The plunger may be hollow as shown in Fig. 13. In one form with deep grooves, the part between two adjacent grooves has a lateral notch for operation of the plunger by a suitable tool. Fig. 23 shows a form in which the plunger has deep grooves 4 and its guide wall 5 also has grooves 4a.
Patent GB-640206-A (GB)
Title: Improvements in methods of and apparatus for surface conditioning wire and the like
IPC: B24B5/38
Filed: 1948-02-16
Abstract: 640,206. Surface-conditioning of wire. VAUGHAN MACHINERY CO. Feb. 16, 1948, No. 4525. Convention date, April 19, 1944. Drawings to Specification. [Class 60] The subject-matter of this Specification is substantially the same as that described in Specification 592,825, the particular description of the means for oscillating the wire being omitted. The claims are directed to a method of surface conditioning wire or the like, as it is simultaneously advanced longitudinally and oscillated about its axis, by means of grinding wheels having overlapping faces between which the wire passes, the wheels being rotatable on axes inclined slightly towards each other and disposed on opposite sides of the wire, and the overlapping faces of the wheels being slightly bevelled outwards. Specification 560,446 also is referred to.
Patent GB-789108-A (GB)
Title: Improvements in or relating to the hardening of epoxide resins
IPC: C08L63/02
Filed: 1956-02-14
Abstract: Compositions suitable for the production of surface coating, fibre-glass impregnated lamin , and adhesives consist of an epoxide resin and a basic polyamide obtained by condensation of a polyamine having the general formula NH2(RNH)nRNH2, where R is a divalent hydrocarbon radical with a saturated aliphatic dicarboxylic acid HOOC(CH2)nCOOH, the ratios of the sum of the primary and secondary amine groups to carboxyl groups in the polyamide being greater than 1 : 1, preferably 2 : 1.  Polyamines specified are diethylenetriamine triethylenetetramine, tetraethylene pentamine, dipropylaminetriamine; acids specified are adipic, pimelic, sebacic, iso- or terephthalic, 2,2-bis-41-carboxy methyl phenyl) propane.  They can be replaced in part by monocarboxylic acids, e.g. those derived from oils and fats. 20-25 per cent up to 100 per cent of the weight of the epoxide resin in the composition may consist of polyamide resin.  The mixture is hardened by heating to 250 DEG  C.  In examples: (1) 83 parts triethylene tetramine and 83 parts adipic acid are heated to 130-180 DEG  C. to give a tough yellow resin.  A 50 per cent solution of the resin in the monoalkyl ether of ethylene glycol was mixed in various proportions with a 50 per cent solution of an epoxy resin of m.w. 1000 obtained by condensation of 1 mol. bisphenol and 1.5 mols. epichlorhydrin; (3) the polyamide resin was obtained by heating together 73 parts triethylene tetramine, 36.5 parts adipic acid and 140 parts linseed oil acids; (4) dipropylamine triamine and adipic acid were reacted to give the polyamide; (5) benzoic acid was used to replace part of the adipic acid; (6) the polyamide was formed by heating together ethylene glycol, linseed fatty acids, 2,2-bis-(41-carboxy methylphenyl)-propane and triethylene tetramine.
Patent GB-459259-A (GB)
Title: Improvements in exposure regulating means for cameras
IPC: G03B7/08
Filed: 1936-02-15
Abstract: 459,259. Electric control systems. RADIO CORPORATION OF AMERICA, 30, Rockefeller Plaza, New York, U.S.A. Feb. 15, 1936, No. 4675. Convention date, March 9, 1935. [Class 40 (i)] [See also Group XX] Automatic photographic exposure control for contrast and illumination is determined by control circuits for the motors actuating light filters. Two photo-electric cells 30, 31 are oppositely connected in the input circuit of an amplifier 32 which supplies current through a further amplifier 33 to a resistor 28 and a polarized relay 34. The potential producing current in the operating coil 35 of the relay 34 is the resultant of the amplifier output potential and the opposed potential drop produced in resistor 28 by the battery 23f. When the contrast in the scene to be photographed varies, the difference in illumination of the photocells 30, 31 varies and the relay 34 is operated to cause the motor 14 to move a light wedge and correct the exposure. Similarly the general illumination is caused to control a further photo-electric cell which regulates in the same way the action of a relay controlling the movement of a variable tint filter.
Patent GB-459205-A (GB)
Title: Improvements in vices
IPC: B25B1/24
Filed: 1936-02-15
Abstract: 459,205. Vices. BROCKHAUS, J., Wiesenthal, BROCKHAUS, W., Oesterau, BROCKHAUS,W., Wiesenthal, BROCKHAUS, H., B÷ddinghausen, and BROCKHAUS, P., Oesterau, all near Plettenberg, Westphalia, Germany. Feb. 15, 1936, No. 4684. [Class 61 (ii)] A vice comprises a body 4 carrying the fixed jaw 2 and a cylindrical slide bar 6 carrying the movable jaw 1 and guided in a cylindrical bore 5 in the body 4 by one or more cylindrical or other splines 7a extending the length of the bore and fixed therein by screws 10 enabling adjustment to be made after wear. Fig. 8 shows a modification wherein a single spline 7 of V- section has a projection 13 engaging a hole in the base 4a of the vice body 4 and is adjusted by grub screws 7<1>.
Patent GB-1075562-A (GB)
Title: Improvements in or relating to the production of carnitinamide chloride
Inventor: BINON FERNAND
IPC: C07C237/00
Filed: 1966-02-02
Abstract: The invention comprises (1) the novel compounds l-carnitinamide chloride and d-carnitinamide chloride, and (2) a process for producing dl-, d- or l-carnitinamide chloride by reacting the chloride of the corresponding dl-, d-, or l-carnitine nitrile with hydrochloric acid at a temperature in the range of 15-55 DEG  C.
Patent GB-113865-A (GB)
Title: Improvements in Radiation Pyrometers.
IPC: G01J5/60
Filed: 1917-03-31
Abstract: 113,865. Hilger, Ltd., A., and Merton, T. R. March 31, 1917. Pyrometers.-A radiation pyrometer comprises two radiation measures in the form of thermopiles T', T<2> lenses O<1>, O<2> in tubes L<1>, L<2> for throwing on to the thermopiles radiations from the source the temperature of which is to be measured, and means for producing a difference between the radiations falling on the thermopiles, the difference between or the ratio of the E.M.F's. produced indicating the temperature. The difference between the radiations may be caused by the provision of two filters S<1>, S<2>, one red and the other green, or by the provision of one filter only, the intensity of the unfiltered beam in the latter case being compensated for by reducing its size. A telescope L<3> may be provided to enable the instrument to be adjusted so that identical images are produced on the thermopiles.
Patent GB-452094-A (GB)
Title: Improvements in methods of making piston pins
IPC: B21K1/76
Filed: 1936-02-17
Abstract: 452,094. Making gudgeon-pins. ABBE, E. C., 43, Glenwood Circle, Longmeadow, Massachusetts, U.S.A. Feb. 17, 1936, No. 4755. Convention date, March 19, 1935. [Class 83 (ii)] [See also Group XXVI] A gudgeon-pin comprising two recesses 10, Fig. 6, a partition 15 with an opening 13, and an oil groove 20, is formed by welding together two blanks C, Fig. 3, each formed from a circular blank by a series of drawing operations and a punching operation, the pin being completed by cutting or grinding operations.
Patent GB-1013625-A (GB)
Title: Retaining member and panel assembly
IPC: E06B3/72
Filed: 1963-02-06
Abstract: 1,013,625. Door bodies; clips; stud and socket fastenings. HEINZ SCHURMANN G.m.b.H. [trading as HEINZ SCHURMANN & CO.] Feb. 6, 1963 [Feb. 6, 1962], No. 4998/63. Headings E1J and E2B. A pair of panels 1 are secured on opposite sides of a door or partition frame by clips 2 preferably of plastics, carried by a flange 1A on one panel, the clips 2 interengaging with a bulbous portion 1D of a flange 1B on the other panel. As shown the panels are identical and in inverted relationship, and have additional flanges 1C locating them in the lower framework A of a glazed door. The flanges 1C may be omitted and the clips 2 be provided with locating wings. In a modification only one-panel carries the clips 2. Each clip 2, Fig. 4 is secured in a hole in the flange 1A by a spreading screw 3.
Patent GB-1093461-A (GB)
Title: Device for counting particles of determined minimum length
IPC: G01N33/36
Filed: 1965-02-04
Abstract: 1,093,461. Pulse Circuits. EASTMAN KODAK CO. Feb. 4, 1965 [Feb. 28, 1964], No. 4812/65. Heading H3P. [Also in Division G1] In a device for measuring the length and volume of fibres in papermaking pulp (see Division G1), pulses (Si), Fig. 3 (not shown), are amplified, clipped by a Zener diode 40, and integrated to form sawtooth waves (S 2 ) of amplitude proportional to the duration of the pulses (Si). After passing through a feedback amplifier 26, a sawtooth wave whose amplitude exceeds an adjustable threshold triggers a monostable multivibrator 28 which passes an output signal S o  to a counter (not shown). Alternatively, Zener diode 40 may be cut-out and the pulses integrated without clipping to form sawtooth waves S 2  of amplitude proportional to the area under the pulses Si. A calibration circuit, using a Zener diode 69, maintained at constant temperature in an oven, enables the circuit to be adjusted for maximum sensitivity.
Patent GB-1369232-A (GB)
Title: Control systems for road vehicles
IPC: F02P3/04
Filed: 1971-02-17
Abstract: 1369232 Transistor switching circuit JOSEPH LUCAS (INDUSTRIES) Ltd 7 Feb 1972 [17 Feb 1971] 4880/71 Heading H3T [Also in Division G1] In a control system comprising a radiation source and a radiation detector with means drivable by an engine for repeatedly exposing the detector to the radiation, means are operated when the detector is exposed to the source regeneratively to increase the current flow through the source. In an embodiment, Fig. 1, for a vehicle ignition system a light emitting diode 21 is positioned so that it can illuminate a phototransistor 26 via a slotted shutter. A Zener diode 17 provides a constant bias on the base of the transistor 18 so that the current flow through the transistor 18 is just sufficient to energize the diode 21 so that it is radiating light. When the phototransistor 26 is illuminated it will start to conduct and turn on the transistors 22 and 27 which in turn will provide additional current through the diode 21 so that the illumination increases, which in turn increases the conduction of the transistor 26. Conduction of transistors 22 and 27 turns off transistors 29 and 33 causing the flux in the core of the transformer 35 to collapse and a spark to be produced. In an embodiment (Fig. 4, not shown) for limiting the maximum speed of an engine, transistors 29, 33 and the transformer 35 &c. are replaced by a diode pump circuit (frequency to voltage converter) coupled to a switching device which changes state when the engine speed reaches a predetermined value and activates a relay preventing the ignition coil of the engine from operating until the speed drops below the predetermined value. A further embodiment, Fig. 3, for fuel injection is similar to the Fig. 1, embodiment except that the slots in the shutter 42 are chosen such that a slot occurs at the instant at which injection is to start. The transistor 29 activates a further transistor and a fuel injector.
Patent GB-660383-A (GB)
Title: Blade mounting for axial-flow compressors and the like
Inventor: BOYD WINNETT
IPC: F01D9/04
Filed: 1949-02-23
Abstract: 660,383. Compressor and like blades. BOYD, W., ANDERSON, G. E., and ROE, CANADA, Ltd., A. V. Feb. 15, 1950 [Feb. 23, 1949], No. 4925/49. Class 110(iii) In an axial-flow compressor or the like in which the blade roots are mounted in slots in the blade-supporting members, a coating of a thermosetting plastic is applied to the registering faces of either the slots or roots, or to both slots and roots. The roots of the blade are then inserted in the slots and the supporting members and blades are subjected to heat until the plastic is cured. The plastic 19 may be organosilicon polymer and the thickness between 0.0005 inch and 0.005 inch. The blade roots 11 are of dovetail section and fit into correspondingly-shaped slots 16 in the blade ring 12. The blade rings are supported in the casing 13 by spacer rings 14 which are secured by bolts 15, the blade rings and spacer rings being suitably stepped.
Patent GB-113181-A (GB)
Title: The Manufacture and Production of a Colouring Matter.
Inventor: EHRHARDT ERNEST FRANCIS
IPC: C09B45/16
Filed: 1917-04-05
Abstract: 113,181. Ehrhardt, E. F., and Ehrhardt, H. W. April 5, 1917. Monoazo dyes.-A monoazo dye is obtained by coupling diazotized picramic acid with p-cresol ; instead of isolated p-cresol, the waste liquor, resulting from the coupling of diazotized picramic acid with a commercial mixture of cresols, may be used. The product dyes wool chocolatebrown shades, becoming olive-brown on chroming. Specification 3698/77 is referred to.
Patent GB-290748-A (GB)
Title: Improvements in or relating to methods and apparatus whereby cigarettes or other articles can be packed in cartons of slide-and-shell type
IPC: B65B19/18
Filed: 1927-02-22
Abstract: 290,748. Rose, A. G., and Rose Bros. (Gainsborough), Ltd. Feb. 22, 1927, Packeting cigarettes &c. in receptacles.-Cartons 1, each comprising an inner tray or slide 2 and an outer shell 3, are stacked vertically in a magazine 4 wherein the lowermost carton is adjusted to a predetermined position by a member 6 mounted on a rock shaft 7, the member 6 pressing the carton against the opposite wall 21 of the magazine 4. Stops 22, 24 on the wall 21 and member 6 respectively engage the vertical walls of the outer shell 3 and hold it whilst pushers 25 reciprocated by a cam actuated lever 29 thrust the inner tray out of the shell into a box 38 on a conveyer 39. A roller 31 on an arm 30 secured to the pushers 25 rides on the platform 5 of the machine to guide the pushers against the tray. The conveyer 39 moves intermittently bring- ing the tray to position B where it is filled with cigarettes &c., reciprocating pushers 40 simultaneously pushing the shell 3 sideways out of the magazine 4 to position A. The next movements of the conveyer 39 and pushers 40 transfer the slide and shell to positions D, C, where the packed cigarettes are inspected and a final movement brings them to position F, E where a pusher 42 re-inserts the packed slide in its particular shell. In a modification, the slide is filled at the position it is thrust into bv the pushers 25 and is returned to the shell whilst the shell is still in the magazine. The filled carton is then thrust out of the magazine by the pushers 40.