baber/WOPTO huggingface dataset:
Patent GB-419309-A (GB)
Title: Means for effecting thermal compensation or adjustment in fluid pressure systems
IPC: B60T11/10
Filed: 1933-05-12
Abstract: 419,309. Hydraulic transmission of power. LOCKHEED HYDRAULIC BRAKE CO., Ltd., BOUGHTON, E. B., and RODWAY, J., Brock House, Langham Street, London. May 12, 1933, No. 13874. [Class 69 (ii).] In hydraulic control systems for brakes, valves and other purposes thermal compensation is effected by the provision of a shadow pipe line substantially following the main pipe line and acting as a thermostat for operating adjusting means in a mechanic. ally functioning part of the system. A transmission system suitable for the throttle control on an aircraft, comprises a master cylinder 5, Fig. 1, mounted on a pivot 6 and connected by pipe line 1 to a cylinder 25 slidable on a piston 28 pivoted at 29 and connected to the throttle lever 26 pivoted at 27. The master piston 8 is operated by lever 18 through a compensating cylinder and piston 15, 16 and a lever 11, the transmission being through liquid in the cylinder 15 which communicates with a pipe 23 that follows the pipe line 1 and is closed at its end by an adjusting plug 24. Tension springs 31, 32 connected to the levers 11, 26 keep the liquid in the pipe 1 under pressure and ensure movement of the lever 11 and piston 8 when the lever 18 is moved to the left, without the tendency to form a vacuum in the cylinder 15. The liquid in the pipe 23 is subject to the same temperature conditions as that in the pipe 1 so that if the temperature rises the effective length of the link formed by the cylinder and piston 15, 16 increases by an amount corresponding to the movement of the piston 8 due to the expansion of the liquid in the main system, the position of the levers 18, 26 being unaffected. Fig. 2 shows the pedal lever 40 of, for example, a hydraulic brake system the lever being connected to the master piston at 47 and being displaced to compensate for thermal changes in the system by mounting it upon an eccentric 43 connected by arm 45 and link 46 to a piston controlled by the shadow pipe line. Specification 414,794 is referred to. According to the Provisional Specification, compensation may be effected by movements of a wedge-shaped cam interposed in a thrust connection between a master piston and its operating lever so as to vary the overall length of the connection or the main hydraulic system may have a branch connection to an additional piston which is connected to the piston of the compensating pipe line so as to vary the volumetric capacity of the main system.
Patent GB-599125-A (GB)
Title: An indicator or alarm device for fluids
IPC: G01P13/00
Filed: 1946-05-08
Abstract: 599,125. Actuation of switches. BAMFORD & CO., Ltd., F., BAMFORD, F., and MARTIN, S. May 8, 1946, No. 13881. [Class 38(v)] [Also in Group XXIX] Within the casing 10 of an alarm device for indicating conditions in a fluid system there is formed on the boss 18 of a weighted vane 17 a helical groove 28 which is engaged by a chamfered roller 26 mounted on a plunger 25. The plunger is secured to and passes through a diaphragm 30 and carries at the outer end an adjustable abutment screw 35. Rotation of the vane due to the fluid flow thus causes axial movement of the plunger 25 which closes a relay or a switch of an indicating or alarm system. The roller 26 and groove 28 may be replaced by a nut and screw.
Patent GB-712627-A (GB)
Title: Improvements in or relating to couplings for tractor trailer vehicles
IPC: B60D1/04
Filed: 1951-06-12
Abstract: 712,627. Tractor-trailer couplings. TAPP, E. T. J., and TAPP, P. J. R. Aug. 26, 1952 [June 12, 1951]. No. 13883/51. Class 103(5) A trailer provided with a turntable has a cross-shaft mounted at its forward end on which is pivoted a drawbar 16 and rollers 20. The tractor is provided with a hook 25 which engages the eye 17 on the trailer drawbar and which is moved in a fore and aft direction by the ram 24. The eye 17 is directed on to the hook 25 by guides 33 and a ramp 28 forming part of the hook 25 the eye being maintained in engagement when the hook is in its forward position by a cross-member 26 secured to the upper edges of the guides 33. In this position the rollers 20 are held in engagement with vertical rollers 32 on the tractor. In a modification the hook reaches its forward position by backing the tractor, screw and nut means retaining it in this position.
Patent GB-948474-A (GB)
Title: Improvements relating to d.c. to a.c. inverter circuits
Inventor: KING KENNETH GORDON
IPC: H02M7/53862
Filed: 1961-04-18
Abstract: 948,474. Transistor oscillator circuits. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. March 21, 1962 [April 18, 1961], No. 13897/61. Heading H3T. [Also in Division H2] To ensure proper starting of an inverter circuit comprising semi-conductor rectifiers TR1, TR2, an output transformer 5, a load 8 and a commutating capacitor C, the frequency of gating pulses from an oscillator 3 is greater on starting up than in subsequent operation, whereby saturation of the transformer 5 is prevented. The oscillator may be a transistor oscillator (Fig. 5) in which the applied voltage is derived across a resistor 10 of a potential divider 9, 10 across the input supply. The resistor 9 is shunted by a capacitor which, on starting, short circuits the resistor 9, thereby applying the full D.C. input across the emitter circuit and providing a highfrequency output which does not allow the transformer core to saturate. As the condenser C charges the applied voltage and hence the frequency decreases. Output pulses at 22, 23, 22, 24 are derived across differentiating circuits. A multivibrator oscillator is also disclosed.
Patent GB-543702-A (GB)
Title: Improvements in parachutes
IPC: B64D17/00
Filed: 1940-09-06
Abstract: 543,702. Parachutes. PIONEER PARACHUTE CO., Inc. Sept. 6, 1940, No. 13942. Convention date, Sept. 6, 1939. [Class 4] To improve and accelerate the opening of a parachute, the parachute is constructed so that prior to the shock loading stage the vent is kept contracted and then at this stage is operated so as to expand to a comparatively large opening. To, secure this effect, the parachute comprises the features of a vent opening of the type in which the elastic ring is directly acted upon by the tension in the shroud lines, a vent opening which is at least 10 per cent. of the diameter of the canopy, and an elastic ring controlling the vent which is sufficiently strong to restrict the vent opening prior to the shock loading stage, e.g. with a tension on the ring of below 28 lbs., and yet allows the vent to fully expand at this stage, e.g. with a tension on the ring of over 80 lbs. The elastic ring may comprise a number, such as 11 or 13, of the elastic rings commonly used for this purpose, or a single ring may be used in combination with a break cord which ruptures at a pre-determined tension. In one form, the ends of the shroud lines 8 are secured to a marginal tape 18 which also binds the vent edge of the canopy fabric. The elastic ring 22 is loosely enclosed in a hem of material 20 secured over the tape 8. In a construction embodying a break cord, the continuous hem 20 is replaced by a number of spaced loops of tape 24, Fig. 7, which enclose a single elastic ring 22 together with the break cord 26. Specification 186,460, [Class 4], is referred to.
Patent GB-736912-A (GB)
Title: Improvements in or relating to rubber or like buckets and spades or shovels
IPC: A63H33/32
Filed: 1953-05-18
Abstract: 736,912. Shovels. FREEMAN, W. S. May 17, 1954 [May 18, 1953], No. 13945/53. Class 6 (2). [Also in Groups XV and XVII] A shovel for use with a rubber moulded bucket (see Group XVII) has a groove 22 in its handle 21 formed to clip on to the ring 14 forming the bucket handle. The shovel has a blade 24 with raised sides 25, 27 and a leading edge which is angularly shaped to a point 26 in the middle of its width. The shovel is preferably made of moulded rubber.
Patent GB-154950-A (GB)
Title: Improvements in, or relating to, vehicle wheels
IPC: B60B1/00
Filed: 1919-06-04
Abstract: 154,950. Baker, F. W. June 4, 1919. Detachable-rim attachments to wheels.- Vehicle wheels for use with pneumatic or other elastic tyres comprise two spaced concentric metal rings of which the outer one c serves as the tyre carrying rim and is connected rigidly and preferably detachably, with the inner ring b by three equidistant bearers d which are of greater dimension in the circumference than in the radial direction, the inner ring being connected rigidly to the wheel centre by three bearers situated intermediate the connexions between the two rings and also of substantial dimension circumferentially. The centre a comprises a symmetrical combination of arches and may be formed of metal stampings welded together at their edges to form a hollow structure or may consist of the spoke arrangement described in Specification 130,719, [Class 144 (i), Wheels for vehicles]. The connexion between the rings may be in the form of clips d which allow ready detachability of the tyre-carrying rim c.
Patent GB-539849-A (GB)
Title: Improvements in or relating to motion picture apparatus
IPC: G03B1/42
Filed: 1940-09-10
Abstract: 539,849. Kinematograph apparatus. KODAK, Ltd. Sept. 10, 1940, No. 14035. Convention date, Dec. 13, 1939. [Class 97 (i)] [Also in Group XXVI] A drum driven by two springs coiled within it has two rows of teeth axially separated so as to engage two side-by-side parts of the film ; the rows of teeth may respectively feed film from one of two co-axial spools to the gate, and from the gate to the other spool, the gate being provided with edge guides causing the film path therethrough to be parallel to a plane between the spools. As shown, the drum comprises a cylindrical wall 22 carried by an end wall 23 and by a cap 25 having a flange 27, each secured to bushings rotatable on a shaft 20. A sleeve 37 pressed on the wall 22 carries rows of teeth 38, 39 and a shoulder 40. Film delivered from a spool 6 engages the teeth 39 and shoulder 40, passes to the gate, and thence, over the teeth 39 and flange 27 to the spool 7 ; pressure rollers 43 on brackets 44, 45 engage the film. A spring 28 riveted to an arbor 29 keyed to the shaft 20 has its outer end fastened to a cup-shaped member 31 secured to a sleeve 33 rotatable about the shaft 20 within the drum, and a second spring 32 is secured to the sleeve 33 and to the wall 22 of the drum. The springs are wound by a handle 21 on the shaft 20, a ratchet 34 on the shaft is engaged by a pawl 35, and a gear 67 riveted to the drum transmits the power to the mechanism. The spools 6, 7 are respectively carried by a square sleeve 8 rotatable on a spindle 9, and by the spindle, the spindle being driven by a belt and a pulley 10 ; friction between the sleeve and spindle restrains rotation of the spool 6. The gate comprises a curved aperture plate 49 secured to a shutter housing 47 and a pressure pad 51 held by a spring arm 52. A guide plate 53 engages one edge of the film, and a flange 55 engages the other edge. The film is threaded with loops L 1 , L 2 , and a film guide 57 is carried by a cover 17 enclosing the drum 22 and a centrifugal governor on a spindle 69. According to the Specification as open to inspection under Sect. 91, retractable balls 15 in the spool spindle permit the placing of the spool 6 into position on the sleeve 8. This subject-matter does not appear in the Specification as accepted.
Patent GB-1377596-A (GB)
Title: Process for the preparation of 1-substituted 3-hydroxypyrazoles
IPC: C07D231/20
Filed: 1973-03-23
Abstract: 1377596 3-Hydroxypyrazole derivatives AKADEMIE DER WISSENSCHAFTEN DER DDR 23 March 1973 14049/73 Heading C2C Compounds I in which R<SP>1</SP> is H or alkyl; R<SP>2</SP> is H, alkyl or aryl; R<SP>3</SP> is H, alkyl, polyhydroxyalkyl, aryl, aralkyl or heterocyclyl and R<SP>4</SP> is H or alkyl or CR<SP>3</SP>R<SP>4</SP> is cycloalkyl are prepared by rearrangement, using a base, of compounds II Compounds II may be prepared by reaction of R<SP>3</SP>COR<SP>4</SP> with compounds III
Patent GB-175568-A (GB)
Title: Improvements in lock washers
IPC: F16B39/24
Filed: 1921-05-20
Abstract: 175,568. Sokal, S., (National Lock Washer Co.). May 20, 1921. Locking nuts. - An elastic washer for use in locking nuts, comprises a strip of spring steel formed into a sinuous split ring having several contact points 3 on either side. The ends 1, 2 of the strip are on opposite sides of the middle plane of the washer. The corrugations may vary in depth, and are closely spaced.
Patent GB-1466226-A (GB)
Title: High melting n,n-terephthaloyl bisphthalimide and its use as an ester interlinking agent for polyesters
IPC: C08G63/78
Filed: 1975-04-07
Abstract: 1466226 Polyesters GOODYEAR TIRE & RUBBER CO 7 April 1975 [29 April 1974] 14158/75 Heading C3R [Also in Division C2] High molecular weight linear polyesters and copolyesters are made by melt polymerizing the product obtained by esterifying or transesterifying a dicarboxylic acid or its C 1-4  alkyl ester respectively with a glycol HO(CH 2 ) n OH, where n is 2-10 and, when the intrinsic viscosity of the reaction mass is at least 0À2, adding 1À0 to 20À0 parts by weight N,N<SP>1</SP>-terephthaloyl - bis - phthalimide, having a melting point of at least 330‹ C., per 100 parts by weight of the starting carboxylic acid or ester.
Patent GB-554218-A (GB)
Title: Improvements to an axial balance device for a body revolvable on a shaft of variableinclination
IPC: G01M1/04
Filed: 1942-10-08
Abstract: 554,218. Bearings. SOC. GENEVOISE D'INSTRUMENTS DE PHYSIQUE. Oct. 8, 1942, No. 14159. Convention date, July 4. [Class 12 (i)] [Also in Group XXIII] A grinding disc or other spindle has a single thrust bearing against which it is pressed by fluid pressure which varies with the inclinations of the spindle with the horizontal. The spindle 8, carrying the disc 17, is mounted in bearings 24, 32 carried by a plate 35 adjustably mounted on a frame part 36. The spindle abuts against a fixed thrust bearing 9 and is pressed thereon by a piston 15 under the influence of oil circulated by a pump 2 in the circuit of which is a by-pass 6 controlled by a valve 5 under the influence of a pendulum 11. A shunt circuit 18, 20, 21, 22 serves for lubricating the bearings. In a modification the collar is under the influence of two fluid pistons embracing springs.
Patent GB-1187567-A (GB)
Title: Apparatus for use in producing a Fluidised Bed
Inventor: THOMPSON BRIAN HOYLE
IPC: B01J8/44
Filed: 1966-03-31
Abstract: 1,187,567. Base plate for fluidised bed. GAS COUNCIL. 30 March, 1967 [31 March, 1966], No. 14290/66. Heading B1F. [Also in Division F4] A base plate for a fluidised bed comprises a strip or circular or annular plate e.g. as shown in Fig. 2 with perforated risers 10, and treads 11 which may also be perforated. Fluidising medium passing through perforations 12 sweeps solid particles from the treads up into the fluidised bed. The risers may be at an angle of 30‹ or less to the vertical when the support lies generally in a horizontal plane and may undercut the treads, and the treads may be inclined at an angle of 30‹ or less to the horizontal. The base plate may be used in the hydrogenation of powdered coal under pressure or the hydrogenation of crude petroleum under pressure in the presence of a fluidised bed of coke.
Patent GB-637917-A (GB)
Title: Improvements in or relating to gas turbine power plants
IPC: H01B17/36
Filed: 1948-05-27
Abstract: 637,917. Jet propulsion plant. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. May 27, 1948, No. 14337. Convention date, June 5, 1947. [Class 110(iii)) In a gas turbine plant in which the area of the discharge nozzle is varied by moving a tailpiece axially with respect to the main portion of an inner core structure, the tailpiece is moved by means including a cable or cables associated with a rotary element or elements carried by or within the main portion of the' inner core structure. The variable area jet propulsion nozzle shown is formed by a movable tailpiece 42 mounted on the end of a push rod 50 supported by a structure 29 and a bushing 25. The push rod is operated by endless cables 38 wound around drums 36, 37 and looped around idler pulleys 34. Rotation of the drums 36, 37 by a pneumatic, hydraulic or electric motor moves the cables 38 and operates the tailpiece 42. A cylindrical element 26 reinforces and forms a heat insulating shield for the frusto-conical support member 23. Pins 62, 63 limit the amount of travel of the tailpiece by engagement with the structure 29. The operating mechanism is kept cool by atmospheric air flowing through the struts 12, apertures 40, apertures 47 and orifice 45.
Patent GB-725043-A (GB)
Title: Improvements in or relating to items of office equipment
IPC: B41L1/00
Filed: 1953-05-21
Abstract: 725,043. Carbon paper holders. BESLEY & COPP, Ltd., and ENGLISH, W. E. Dec. 7, 1953 [May 21, 1953], No. 14343/53. Class 16. A clip for attachment to the edge at one end of a carbon pocket comprises a strip of metal 10 bent to U-shape and adapted to embrace the edge, one of the limbs having means, such as a bar 13, associated therewith to constitute a guide for sheets or webs of paper to be inserted into the carbon pocket. The limb to which the bar 13 is attached has a rolled edge 11 and the opposite limb has an inturned edge 12 providing a stop for the edging strip of a carbon pocket so that the clip can only be removed laterally. The clip assists also in handling the pocket and acts as a stop in typing when the carbons have run through the typewriter.
Patent GB-665495-A (GB)
Title: Tufting device
IPC: D05C15/06
Filed: 1949-05-28
Abstract: 665,495. Sewing. DYKE, L. VAN, and DYKE, M. F. VAN, (trading as VAN DYKE TEXTIGRAPH CO.). May 28,1949 [March 10, 1949], No. 14358/49. Class 112. A tufting device comprises a tubular housing 10, a slot 40 in the wall of the housing, a block 47 reciprocatable in the housing and having a notch 48 adjacent the slot, and an eyeless hollow one-piece needle 50 rigidly secured to the block so that the bore of the needle is in direct communication with the notch. The needle is reciprocated by a rotary flexible drive having a withdrawable coupling member 16 engaging a rotatable member 19 in the device. The member 19 rotates a member 26 having a double screw thread 27. The thread is engaged by a pin 31 so that the member 26 is reciprocated on rotation. A non-rotary member 38 is reciprocated by the member 26 and carries the block and,two needles. Tubular guides 12 are provided for the yarn. Oil may be supplied to the pin 31 through a hole 33.
Patent GB-211768-A (GB)
Title: Improvements in roundabouts
IPC: A63G1/24
Filed: 1923-05-31
Abstract: 211,768. Clorius, A. V. May 31, 1923. Roundabouts.-A roundabout is provided with means whereby one or more persons can effect the movement of other chairs or standing places, or cause the lighting of lamps. As shown in Fig. 2, seats 2 are supported on a platform 1 which rotates about a central column 7 carrying switches 6 adapted to be operated by pivotally mounted rods 4 within the reach of the seats 2. The switches 6 close electric circuits adapted to release one or more rods 8 supporting one or more seats, as shown in Fig. 3. The seats may be raised by springs 10 by weights or by other mechanical or electrical means. In a modificaton, the passengers ride on animal figures, supported in a similar manner to that shown in Fig. 3, and the seats may be operated by means of targets representing animal or other figures. The switches may also be operated by balls which are struck by the hand or foot. The switches may also form part of a panorama or representation of figures carried by the column 7, which may be arranged to rotate while the platform 1 remains stationary. The seats may take the form of an air-filled ball, the valve of which is opened by the striking of a switch.
Patent GB-720421-A (GB)
Title: Improvements in or relating to vacuum cleaning apparatus
Inventor: BOOTH S
IPC: E21F5/20
Filed: 1952-06-09
Abstract: 720,421. Removal of dust generated in industrial processes. BRITISH VACUUM CLEANER & ENGINEERING CO., Ltd. June 4, 1953. [June 9, 1952] No. 14503/52. Class 8 (2). Mobile vacuum cleaning apparatus for removing dust from mine roadways comprises one or more cyclone separator units 2, 4 Fig. 1 each detachably mounted on mobile dust containers 1, 3 a mobile filter unit 6 having its inlet detachably connected to the exhaust of the cyclone or cyclones and discharging to an exhauster 7 for providing suction to a nozzle 15 (not shown) connected by a hose to the inlet of cyclone 2. A spare container 5 normally closed by a lid 10 and to which either of the cyclone units may be transferred is located between container 3 and filter 6. Connections comprise couplings 45 and flexible suction conduits 23, 25, 26, 37. The filter comprises groups of sleeves 31 Fig. 4 supported between a perforated plate 32 and the top of a casing 28 and shaken by a frame 40 and rods 41 (not shown) ; dust so removed being collected in a tray 38. Springs 33 prevent collapse of the sleeves by suction. Each container has a vent 46 for releasing gas given off by collected dust during inoperative periods and the vents are closed by disc valves on the application of suction by the exhauster.
Patent GB-282620-A (GB)
Title: Process and apparatus for the manufacture of paper which possesses properties closely resembling those of hand made paper
IPC: D21F11/16
Filed: 1927-05-30
Abstract: 282,620. Moes, C. Dec. 24, 1926, [Convention date]. Paper machines; moulds.-In the manufacture of machine made paper having the characteristics of hand made paper, pulp from a channel 1 is fed by a chest 2 to an uninterrupted surface formed by a number of separate suction boxes 3, the tops of which are covered with wire cloth or laid wire. The boxes are carried forward by a conveyor 4 over a vacuum chamber 10 to a couch roll 12 carrying a felt 13 which conveys the web to the presses of an ordinary paper machine. Deckles 9 are provided and the forming apparatus including the roll 12 is mounted on a frame 6 which is shaken laterally about a vertical shaft 7. Watermarks may be sewn or embossed on the wire cloth surface of the boxes 3.
Patent GB-1090854-A (GB)
Title: Improvements in or relating to pre-vacuum type steam sterilizers
Inventor: KNOX ROBERT
IPC: A61L2/07
Filed: 1964-04-08
Abstract: Steam-sterilizing apparatus comprises a sterilization chamber into which steam may be introduced and one or more steam ejectors arranged to evacuate the chamber, a connection being made between the discharge from the ejector(s) and the chamber whereby a portion of the steam discharge may be bled into the chamber.
Patent GB-751285-A (GB)
Title: Improvements in or relating to electrode assemblies for electron discharge devices
IPC: H01J19/42
Filed: 1954-05-19
Abstract: 751,285. Thermionic valves. TELEFUNKEN GES., [formerly TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE]. May 19, 1954 [May 19, 1953], No. 14635/54. Class 39 (1). A support rod for an electrode such as a grid, which rod after cutting is left with a slightly splayed V-shaped end, as at 1, is passed through a hole in an insulating spacer 4 of such shape that the rod makes contact with the spacer at part of its periphery only, the hole having one dimension larger than the widest part of the rod, so that the rod can be oriented to pass through freely. The hole may be square, as shown, or other shapes such as hexagonal or elliptical, the rod always being supported so that movement in any direction transverse to its axis is prevented.