baber/WOPTO huggingface dataset:
Patent GB-455635-A (GB)
Title: Improvements in or relating to sound-translating devices
IPC: H04R1/38
Filed: 1935-04-24
Abstract: 455,635. Acoustic wave filters. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Marshall, R. N.; 115, North 6th Street, Newark, New Jersey, U.S.A.) April 24, 1935, No. 12391. Convention date, April 25, 1934. Addition to 382,268. [Class 13] [See also Group XXXIX] Comprises a number of improvements in the device claimed in Claim 1 of the parent Specification in which an acoustic path between the two sides of the diaphragm of a sound-translating device has acoustic mass and stiffness so proportioned that the sound waves are reinforced at low frequencies. As shown in Fig. 1, the casing 51 of a moving-coil microphone is divided by a partition 107 into compartments connected acoustically by a tube 108 and both open to the outer air through perforated end covers 53, 56. In a modification, Fig. 13, the acoustic path from the rear to the front of the diaphragm is by way of the air gap in the magnetic circuit and a tube 170 open to the outer air. In modifications, Figs. 17 to 21 and 22 to 24 (not shown), the tube is coiled within the casing. Specification 388,069, [Group XXXIX], is referred to.
Patent GB-769970-A (GB)
Title: An improved air-blast circuit-breaker with multiple arc-extinction chambers
Inventor: ANDRE LATOUR
IPC: H01H33/32
Filed: 1955-04-29
Abstract: 769,970. Air-blast switches. ETABLISSEMENTS MERLIN & GERIN. April 29, 1955 [April 30, 1954; May 19, 1954; Oct. 19, 1954], No. 12419/55. Class 38(5) A multi-break air-blast switch has pairs of arc - extinction chambers 21, 22, 27, 28 carried on a compressed air receiver 14 by insulators 20, 26 whose longitudinal axes are at a substantial angle to the vertical, the longitudinal axes of the chambers being perpendicular to those of the insulators and lying in a common vertical plane. Shunt resistors 23, 24, 29, 30 may be provided and the pairs of chambers are interconnected by a resilient bridge member 25 which is so supported on the receiver 14 by conductive rods 46 (one shown) that the insulators 20, 26 are relieved of bending stresses and are only subjected to part of the supply voltage when the switch is opened. Thus the receiver is "live" and the switch is suspended from a tower by suspension insulators 40 or is supported on pillar insulators on a movable carriage. Fig. 3 (not shown). The insulators 20, 26 may be at 45 degrees to the vertical as shown or at 90 degrees to the vertical and project from the blast valve casing 17, Figs. 4 and 5 (not shown).
Patent GB-267750-A (GB)
Title: Improvements connected with mudguards for cycles and the like
IPC: B62J15/02
Filed: 1926-05-17
Abstract: 267,750. Gorton. W. A. May 17, 1926. Mudguards. - Stays for mudguards of cycles &c. comprise, a wire or like bar provided in the bowed part, connecting the side members 4, with eyes or loops 1 interjacently connected by a portion 2 of the bowed part, the eyes or loops being closed in byre-entrant meeting parts of the bow and adapted to receive screws, rivets &c. for connection to the mudguard. A straight bar is initially formed at its centre part with U-shaped loops which are subsequently closed in, and the bar is then bent to form the portions 4. The eyes may project on one side only of the bowed part, or they may alternately project from both sides, and they may be tapped for the attachment screws 3.
Patent GB-137996-A (GB)
Title: Improvements in disinfecting-attachments for flushing-tanks
IPC: E03D9/03
Filed: 1919-05-20
Abstract: 137,996. Relf, R. T. May 20, 1919. Water-waste preventers, disinfecting-apparatus for.-A disinfectant tank o is mounted on the edge of a flush-tank b by means of a platform d having an adjustable strut g and a thumb-screw f. When the float l sinks with the flush water, a piston j is raised and disinfectant flows into the water through ports l<1> and a pipe i<1>. In modified constructions, the piston has a circumferential groove and a transverse aperture reepectively. The float of the ball-cock of the flush-tank may be used to actuate the piston. The sleeve k may be outside the tank c and integral with the platform, which in this case is formed with two depending flanges and secured by a wedge.
Patent GB-739060-A (GB)
Title: Improvements in and relating to hectographic copying machines
Inventor: BROWN ROLAND
IPC: B41L11/08
Filed: 1952-05-20
Abstract: In a rotary duplicating machine of the kind in which the copy sheet is moistened by a solvent for the hectographic ink of the master sheet, the solvent is applied to the upper one of a pair of feed rollers 10, 11, Figs. 1 and 2, by an upwardly inclined capillary pad 12 the upper part of which is in contact with the roller 10; the pad is held in a holder 28 the lower part of which is formed as, or is attached to, a conduit 29, Fig. 8, through which the solvent is pumped during the operation of the machine, the wall of the conduit in contact with the pad being apertured at 30 to permit the passage of liquid to the pad.  A curved outlet pipe 32, Fig. 2, from one end of the conduit enters the conduit so as to provide a weir which maintains a suitable level of solvent in the conduit.  The outlet pipe discharges the excess solvent into a trough 33 from which it drains back into a reservoir 35. The ends of the conduit are received in slots 50 in the side plates 1, 2 of the machine and are rotatable to enable the pad holder 28 to be swung manually from the operative position shown in Fig. 1 to a substantially vertical inoperative position.  The pad holder is retained in the operative position by the engagement of a swinging spring-loaded latch 41, Fig. 8, with a cross bar 47, Fig. 1.  In the inoperative position the end of the discharge pipe is adapted to be closed by abutting a closing plate 48 attached to the end wall of the trough so that when the pump is operated for priming, solvent is forced through the apertures in the conduit to saturate the pad 12.  The pump 36 is mounted on the top of the reservoir and actuated by a lever 38 oscillated by a cam 39 on the shaft of the <PICT:0739060/III/1> <PICT:0739060/III/2> <PICT:0739060/III/3> pump-operating lever 38.  The feed rollers 10, 11 are rotated to forward the copy sheet to the printing and impression cylinders 5, 6 by a toothed segment 13, Fig. 2, meshing with a gear wheel having a unidirectional coupling with the shaft of roller 10, the segment being carried on an arm 14 oscillated about its pivot point by a printing cylinder 5.  A flexible connecting pipe takes the solvent to the conduit 29.  The amount of solvent fed to the conduit is adjusted by a lever 40 adapted to vary the stroke of the pin and slot connection with a link 17 the other end of which is connected to a crank on the shaft of the printing cylinder. The copy sheets are fed to the rollers 10, 11 over a table 19 by a pusher type feeding device actuated by cam 26 as described in Specification 739,061, [Group XVI].
Patent GB-487092-A (GB)
Title: Improvements in fountain pen
IPC: B43K5/04
Filed: 1937-05-04
Abstract: 487,092. Fountain pens. SAGER, S. M. May 4, 1937, No. 12769. [Class 146 (iii)] In a fountain pen having a self-filling mechanism comprising a casing 9 containing a bulb 12 in communication with the interior of the barrel and adapted to be deflated by means of a leaf spring 18 flexed by an operating-member 21 accessible from the exterior of the pen, the open end of the bulb is provided with an apertured disc 16 which expands the end into sealing contact with the casing. The closed end 13 of the bulb is also of such a diameter that a tight fit in the casing is formed. The ends of the spring 18 are embedded in the material of the bulb, and lugs are formed on the spring in which the operating-member 21 is pivoted so that in normal position it lies in a slot in the casing. Projections and depressions on the member 21 and the lugs are provided to hold the member against unintentional displacement from operative or inoperative position. The member 21 may be replaced by a pair of members which in operative position lie back to back. The feed-bar is formed with a tubular extension 7, the end of which is located closely adjacent to the disc 16.
Patent GB-1511423-A (GB)
Title: Hydrostatic transmission system
IPC: F02B75/02
Filed: 1976-03-30
Abstract: 1511423 Liquid piston engine and transmission system TECHNION RESEARCH & DEVELOPMENT FOUNDATION Ltd 30 March 1976 [30 March 1975] 12825/76 Heading F1B and F1M Free pistons 10, 10' of a liquid piston engine operate pump pistons 11, 11' to drive highpressure fluid to hydraulic device 5 through control valve 4 via a rotary distributer 3 driven, in timed relation to the reciprocation frequency of the pistons 10, by an auxiliary positive displacement hydraulic motor 7, through which passes all the fluid to refill the cylinders 13, 13' on the return stroke, thus maintaining the relationship between pistons and distributer. High-pressure fluid exits from port III in the distributer while low-pressure fluid enters via part IV. Pressure reservoirs 6, 6', a low-pressure charging pump 9, pressure relief valves 42, 42', 43, 45' and one-way valves 45, 44, 44' are provided. Fig. 2 shows a similar system having an open circuit arrangement wherein fluid from the motor 5 is dumped to reservoir 91. The distributer 3' provides part of its high-pressure output, produced in the latter part of the piston 13 power stroke via port V directly to the auxiliary motor 7, the rest of the fluid for the return strokes being supplied by pump 9 driven from motor 7. The arrangement of the distributing arrangement is illustrated in Figs. 3 and 4 (not shown) which figures show the relationships of the various ports and passages formed in the body and the rotor. The prime mover may be of the internal or external combustion type, the working fluid of which is supplied to chambers 12, 12'.
Patent GB-769754-A (GB)
Title: Improvements in the production of flexible animated toys
IPC: A63H9/00
Filed: 1955-05-03
Abstract: 769,754. Moulding rubber toys. SIDLEY, H., and SIDLEY, J. May 3, 1955 [May 17, 1954], No. 12859/55. Class 87(2). [Also in Group XV] A hollow animated toy of rubber or like resilient material is made by first moulding the toy in a two part mould 9, 10 in the form in which its moving parts are in the extended position, e.g. as shown with the hat 3 raised from the head 2 and the connecting part 4 extended, partly setting the material, removing the toy, collapsing the extended parts, holding them mechanically, e.g. by rubber bands or adhesive tape in the collapsed position, and finally setting, e.g. vulcanizing, the material. The toy may be formed by building up layers of the material on the inner surface of the mould.
Patent GB-1123373-A (GB)
Title: Hover height control apparatus for hovercraft
Inventor: LAWRENCE OWEN NAPIER
IPC: B60V1/00
Filed: 1965-03-26
Abstract: 1,123,373. Air cushion vehicles. JOSEPH LUCAS (INDUSTRIES) Ltd. 23 June, 1966 [26 March, 1965], No. 12874/65. Heading B7K. An air cushion vehicle has means for sensing deviation of hover height from a selected or predetermined height, said means transmitting a signal to a device which restores or maintains the vehicle to said predetermined height. An arm carries a wheel and/or float 17 so that movement of the arm relative to the vehicle actuates a valve 19 in an orifice 20 to control the flow therethrough of air delivered through a duct 21 from a lift fan. Air from the fan passes through a further duct formed with a restriction 22, and air from upstream of orifice 20 and restriction 22 is led by ducts 24 and 25 respectively to opposite sides of a servo mechanism 23 which operates a control valve 14 in the fuel supply line 15 to the engine.
Patent GB-442002-A (GB)
Title: Improvements in or relating to saturated fibrous sheet material and process of producing the same
IPC: D21H23/00
Filed: 1934-04-28
Abstract: 442,002. Treating pulp web. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(Raybestos Co. ; 1427, Railroad Avenue, Bridgeport, Connecticut, U.S.A.) April 28, 1934, No. 12896. [Classes 96 and 140] An impregnated paper, fibre sheet or board in which the fibres are both coated by and united together by means of a continuous binding medium such as indiarubber, is made from newly-formed wet web as produced in a paper-making machine, by confining the web between porous surfaces, passing the so-confined web through a bath of saturant liquid embodying the binding medium, freeing the saturated web from the confinement of the porous surfaces in such a manner that the web while suitably supported is permitted to swell up and absorb the excess saturant liquid, and finally condensing the web and removing excess saturant by passage through condensing rolls. As shown, the web 5 is taken off the blanket 6 of a paper-making machine and is transferred to a porous screen belt 9 ; by means of a rotatable screen roll 16 moving at the same speed as the belt 9, the web carried between the roll and belt, is carried through a bath of saturant liquid 14 ; the roll and belt separate as they leave the bath, the web remaining on the belt 9 by means of which it traverses the distance between the bath and the couch rolls 11, 18, and during the time so taken is permitted to swell up and absorb excess saturant liquid ; the condensed web may be permitted to wind up on the couch roll 18 to produce a multi-ply sheet. Instead of the screen roll, an upper porous screen belt may be employed; and further the bath may be constituted by a spray on the upper screen in conjunction with an overflowing reservoir making contact with the lower screen belt. As shown, the felted wet web is formed on a suction cylinder 1 that rotates partly immersed in the pulp suspension 3, the web being transferred to the blanket 6, such transference being assisted by a couch roll 7. The saturant liquid constituting the binding medium may be a solution or suspension of rubber latex, phenolic resin, starch, shellac, glue, viscose, sodium silicate, oil or asphalt, soap or rosin size ; and with the liquid there may be incorporated salts, dyes, fillers, pigments, clay or reagents to act on the paper. When rubber latex is employed, there may be added to the saturant liquid or to the paper stock, vulcanizing agents, accelerators, antioxidants, preservatives and fillers.
Patent GB-1450735-A (GB)
Title: Suction head for gripper
IPC: B66C1/02
Filed: 1974-03-22
Abstract: 1450735 Gripper for handling filled bags; suction gripper CLAUDIUS PETERS AG 22 March 1974 [22 March 1973] 12992/74 Headings B8C and B8H A suction head for a vacuum operated gripper comprises an annular suction chamber 11 having a suction opening on the underside thereof bounded by rigid inner 9 and outer 5 annular rounded rims for contacting a filled bag, the underside of the inner rim 9 defining a plane substantially at the level of, or proud or recessed with respect to, the outer rim 5, and the outer rim 5 having an inside wall 6 sloping toward the centre of the suction chamber. As shown, the inner and outer rims are formed respectively by pipe rings 9, 5 each of which preferably has a radius of curvature of between 10 and 15 mm., the overall size of the ring 5 preferably being between ¢, and 2/3 of the overall size of the bag to be gripped. The ring 5 is secured to a plate 1 which has an opening 2 for connection to a source of vacuum the ring 9, closed by a base plate 10, being carried by a plate 8 which is connected to the plate 1 by screws 7 in a manner to allow slight relative vertical adjustment between the two plates. A perforated sheet, or wire mesh, may be provided within the chamber 11. The suction head may be a two-part casting one part comprising the plate 1, with the ring 3, 5 and the connector 2, and the other part the plate 8, ring 9, and the bottom plate 10. The base plate 1 carries elements, not shown, for connection to a lifting mechanism, not shown.
Patent GB-691376-A (GB)
Title: Means for automatically regulating the air inflow to combustion apparatus
Inventor: BANKS JAMES WORLLEDGE
IPC: B64D13/08
Filed: 1950-05-24
Abstract: 691,376. Controlling air supply for combustion. RADIATION, Ltd. March 30, 1951 [May 24, 1950], No. 12997/50. Class 51(i) [Also in Groups XI, XXVI and XXIX] The air inflow to a combustion apparatus is controlled by a pivoted valve which is actuated by a capsule or diaphragm subject to a pressure difference existing between selected positions, one of which, is at the inlet side of the valve. The invention is stated to be applicable to apparatus for burning liquid or gaseous fuel as used in de-icing equipment, for cabin-heating on aircraft, and in jet engines and gas turbines. In an embodiment, the air inlet d leads to a burner b, and the air supply is controlled by a butterfly valve e connected to and actuated by a bellows g. The chamber containing the bellows communicates with the air inlet through a pipe o containing a restriction t, and the interior of the bellows communicates with a point between the valve and the burner through a pipe p containing a restriction u. The actuating rod of the bellows has an adjustable screw-and-nut connection m with the valve whereby the response of the valve to movement of the bellows may be varied. An evacuated bellows q is connected by means of universal joints r, s between the bellows and the valve so as to correct for changes in altitude.
Patent GB-672459-A (GB)
Title: Improvements in or relating to alkali metal pentachlorophenate pellets and process for making the same
IPC: C07C39/44
Filed: 1950-05-24
Abstract: Alkali metal pentachlorophenate pellets are made by adding water to the pentachlorophenate in amount 5-25 per cent by weight of the total composition, and mixing.  On drying, the pellets are hard and non-dusting but dissolve quickly in water. The pentachlorophenate used need not be dry, but if not the added water is reduced to bring the total amount within the prescribed range.  Suitable temperatures for mixing are 25-40 DEG  C.  The free alkali content should not exceed 2 per cent by weight, expressed as alkali hydroxide.  An example shows the treatment of sodium pentachlorophenate; the potassium salt is also suitable.
Patent GB-859212-A (GB)
Title: Improvements in the control of refrigerating apparatus
Inventor: MOSS ERIC TOM
IPC: F25D21/02
Filed: 1956-04-27
Abstract: 859,212. Fluid actuation of switches. DAIRY SUPPLY CO. Ltd. April 26, 1957 [April 27, 1956], No. 13006/56. Class 38 (5). [Also in Group XIII] A fluid flow is set up in a duct and change in resistance to flow when the duct orifice is partially or completely blocked is utilized to actuate a switch. In an " ice-bank " milk cooler the duct 4 is connected to bellows 5 in which is situated a second bellows 12 moving a rod 13 connected to one of a pair of contacts 14. The bellows 5 tend to expand and are restrained by a lever 8 riding on a cam 9 mounted on a driven shaft 16. As the lever 8 rides over the cam surface bellows 5 expands, increasing the volume between bellows 5 and 12. If the end of duct 4 is blocked by ice, pressure drops in bellows 5, bellows 12 expands and rod 13 opens the contacts 14, stopping both the refrigerant compressor and the motor 17 driving cam 9. The control may also be constructed to operate on a pressure increase in bellows 5. Specification 798,887 is referred to.
Patent GB-770378-A (GB)
Title: Improvements in or relating to divisible wheel rims
IPC: B60B25/22
Filed: 1955-05-05
Abstract: 770,378. Vehicle wheels. GOODYEAR TIRE & RUBBER CO. May 5, 1955 [Jan. 21, 1955], No. 13043/55. Class 144 (2). A divisible rim assembly, comprising at least one detachable tyre retaining flange 6, having a bead-seating portion 7, retained on a rim base 1 by a split locking ring 10 engaged in a rim base gutter 2, is rendered airtight for use with a tubeless tyre by a resilient deformable sealing ring 16 which is engaged in a groove 12 in the rim base 1, axially inwardly of the gutter 2, so that it is not in contact with the locking ring and, on axial movement of the flange 6 into assembled position, is axially deformed and radially compressed by an axially outwardly facing shoulder 14 on the radially inner surface of the bead seating portion 7 of the flange 6. As shown, the shoulder is formed by the axially inner edge of a recess, in the undersurface of portion 7, which provides a space 15, between the portion 7 and that portion 13 of the rim base which extends between the groove 12 and gutter 2, into which the ring 16 is deformed. The flange 6 and locking ring 10 have mating bevelled surfaces. Fig. 3 shows a corresponding arrangement for rim parts rolled from sheet steel.
Patent GB-480414-A (GB)
Title: Process for the manufacture of stable calcium thiosulphate
IPC: C01B17/64
Filed: 1936-08-27
Abstract: Stable crystalline calcium thiosulphate is produced by precipitating a stable solution thereof, obtained according to the parent Specification, with an inert organic liquid miscible with water, such as ethyl or methyl alcohol, or dioxane.  For example, alcohol is added to a 10 per cent solution in such quantity that the liquid consists of 50 per cent water.  The salt thus obtained redissolves in water to give a clear stable solution.
Patent GB-380435-A (GB)
Title: Improvements in and relating to tube cleaning devices
IPC: F28G1/02
Filed: 1931-05-04
Abstract: 380,435. Cleaning condenser &c. tubes. BRENDLIN, A., 15, Beamtenkolonie, Knapsack, near Cologne, Germany. May 4, 1931, No. 13167. Convention date, Aug. 18, 1930. Addition to 377,723. [Class 99 (ii).] In apparatus for cleaning condenser &c. tubes x of the kind described in the parent Specification, the flexible cord &c. b connects the cleaning device a to a drum l<1> which is coupled to a blade wheel r and which may be connected by a ratchet l to a worm wheel g<1> engaging a worm g integral with an adjustable brake h. The forward movement of the device a, under the action of the cleaning fluid which is supplied from the main A through a tube o and is controlled by a manually operated valve c<1>, is restrained by the brake h, and the return of the device is effected by fluid from the main A acting upon the blade wheel r through a nozzle g<1> controlled by a spring-loaded valve q<111>, the ratchet l being inoperative during this movement and the valve c<1> previously closed. The opening and closing of the valves c<1>, q<111> is controlled by a valve f actuated by stops b<1>, b<11> on the cord b.
Patent GB-127161-A (GB)
Title: Improvements in Power-transmission Gearing.
Inventor: CANN JOHN WALTER
IPC: F16H7/04
Filed: 1918-08-14
Abstract: 127,161. Cann, J. W. Aug. 14, 1918. Positive - driving bands and pulleys.- In gearing comprising a wire rope furnished with balls a engaging recesses in pulleys d, each ball is made with an axial passage of varying diameter, and is secured to the rope by being pressed over a core of steel &c. inserted between the strands of the rope so as to lie against a shoulder in the axial passage. Some or all of the recesses in one or both pulleys are fitted with spring-pressed pushpieces f which, when depressed by the balls, connect the pulley to its shaft, or actuate clutch mechanism, or make electric contact between the pulley and its shaft, which are normally insulated from each other. The device may be used for the production of sparks for ignition purposes. The balls may be replaced by cylinders or double conical bodies, and may be so shaped that only some of them actuate the push-pieces.
Patent GB-133029-A (GB)
IPC: B25B13/50
Abstract: 133,029. Michael, H. A. Sept. 19, 1918, [Convention date]. Pivoted-jaw wrenches; jaw faces.-A pipe wrench is constructed with a toothed jaw 8 secured by a rivet 11 between wings 3 extending from a hollow elliptical handle member 1, and a jaw 12 on a shank 14 adjustably mounted by a nut 21 on a screw 20 pivoted between the wings 3 on a rivet 18. A spring 22 in the handle bears on the rear of the shank 14 above the pivot 18 and normally holds the jaws parallel, and the handle is slotted at 4 to permit of the shank rocking about the pivot 18 when gripping a pipe. The jaw 8 has shoulders resting on slightly inclined edges of the wings 3, which are undercut to engage the end 6 of the jaw.