baber/WOPTO huggingface dataset:
Patent GB-782106-A (GB)
Title: Apparatus for conveying gases or liquids
IPC: F04B43/14
Filed: 1955-08-04
Abstract: 782,106. Rotary pumps. SCHAURTE, P. Aug. 4, 1955 [Aug. 4, 1954], No. 22500/55. Addition to 782,105. Class 110 (2). A rotary pump or the like in which rolling elements in rotating about a central axis press an elastically deformable means into an annular groove as described in the parent Specification, is characterized in that the deformable means comprises at least two superimposed diaphragms. The groove 3 has two independent diaphragms 4, 5 stretched there across which are secured at their centres by a disc 33 and at their peripheries by an outer ring 7 and inner snap rings 8, 9. A third diaphragm 6 is rotatably mounted above the diaphragms 4, 5 and has a thickened track part 30 on which the balls 16 press, the upper part 31 of the cross-section of the track part 30 having a greater curvature than the lower part 32. Between an inlet passage 37 and an outlet passage 48 a strap 52, Figs. 2 and 5, secures both the diaphragms 4, 5 to the bottom of the groove 3 and a strap 51 secures the diaphragm 4 to the bottom of the groove 3, the space so formed between the diaphragms 4, 5 communicating with the atmosphere through a relief valve 57. A valve 40 connected to a diaphragm 42 at the inner end of the inlet passage 37 allows the space 45 inside the cover 2 to communicate with the atmosphere through passages 35, 38, 44, the valve 40 closing when the pressure in the passage 37 is less than atmospheric. A valve 70 is operable to connect the space 45 to the atmosphere. Apertures in the diaphragm 6 connect the space 45 to the space between the diaphragm 56 and this space is connected to the space between diaphragms 4, 5 by apertures in the diaphragm 5 so that with suitable inlet and outlet connections the space between the diaphragms 4, 5 may be used as a pump chamber to convey fluid separately from that being conveyed by the main pumping chamber 3. A check valve is placed in the outlet passage 48.
Patent GB-1151133-A (GB)
Title: Tightenimg the Heads of Single-Headed Percussion Instruments.
Inventor: DELLA-PORTA CLIFFORD
IPC: G10D13/02
Filed: 1966-05-20
Abstract: 1,151,133. Single headed percussion instruments. PREMIER DRUM CO. Ltd. 14 March, 1967 [20 May, 1966], No. 22502/66. Heading G5J. A head tightening device for a single headed percussion instrument comprises a stem 11 having at one end an offset hook engaging a hoop 7 in which head 6 is trapped, a portion of the stem passing obliquely through an aperture in shell 1, clamping means inside the shell comprising an apertured stirrup-shaped plate 14 with lip 15 engaging lower rim 3 of the shell, or a slot part way down the latter, and tightening nut 17 to screw on end 13 of the stem 13. In another embodiment (Fig. 4, not shown), the hook engages a counter hoop (19) disposed on hoop 7 and the edge of head 6 is wrapped round a wire (20) disposed in a block of glue or epoxy resin (21) within hoop 7, which block may, alternatively be directly engaged by the hook. In a further embodiment, for a bongo drum (Fig. 5, not shown), hook (26) engages an indentation (29) in a hoop (27) trapping an annular insert (28) around which the edge of head 6 is wrapped.
Patent GB-186293-A (GB)
Title: Improvements in the manufacture of pens by pressing
IPC: B21D53/76
Filed: 1921-06-20
Abstract: 186,293. Smith, A. H. June 20, 1921. Pens.-In making pens by pressing, a metal strip is fed by means such as desczibed in Specification 186,395 between a pair of relatively movable dies, one of which carries one or more tools for piercing, marking, embossing etc. so that a blank is severed from the strip and one or more of the other operations is performed on the blank at each operation of the dies. The fixed die consists of a blank punching die 1, Fig. 1, in which is mounted a punch 2, Fig. 5, having a piercing portion 4, and two slitting portions 5, a letter or figure embossing tool 6 and a tool 7 for stamping or marking words on the blank. These tools are provided with shoulders 8 which rest against a stationary cross bar 9 and pass through and are supported by corresponding slots in an ejector 11, which is flanged at its rear end and secured by screws to a sleeve 14, positively actuated by a forked slide 15 to eject the finished blank. The faces of the tools 6 and 7 are slightly in rear of the forward edge of the die 1 and tool 2 so that the punching operations are completed before stamping takes place. Co-operating with this die is a movable die 25, which is shaped to fit the cpening in the die 1 and is provided with a slot 29 of shape corresponding to the tool 2 and also with a letter or figure punch 27 which projects slightly in front of the edge of the die. When the die 25 is operated the punch 27 first comes into action to form a depression in the strip 10 before punching takes place, in order to assist in obtaining subsequently a well defined letter or figure on the blank. The blank is then severed from the strip and punched by the tool 2, and the embossing then 'completed by the tools 6 and 7. The tools 2, 6, 7 may be re-set after re-shaping and re-grinding by placing packing between the shoulders 8 and the cross bar 9 or by a screw adjustment, the ejector having a recess 23 toprovide for resetting. The end face of the ejector may be engraved or otherwise shaped to. serve as a marking punch or as a planisher. According to the Provisional Specification the compound die is the movable die and the blankpunching, piercing and word-stamping portions are operated through a strong spring so that the letter embossing tool only comes into action towards the end of the operation. In a modification the letter-embossing tool is slidably mounted in the rest of the die and may be separately operated by a cam projection on the member which operates the rest of the die.
Patent GB-490797-A (GB)
Title: Improvements in the production of soles for slippers and like articles of footwear
IPC: A43B13/12
Filed: 1937-08-17
Abstract: 490,797. Rubber sheets. VOL CREPE, Ltd., and TALLIS, T. R. Aug. 17, 1937, No. 22539. [Class 70] [Also in Group VII] A sheet of rubber composition A which may be spongy, from which combined soles and heels are cut, has a thickened portion A<1> for the heels extending the whole length of the sheet. The portion A<1> may be formed on the edge of the sheet or down the middle for cutting a pair of soles with heels back to back. Strips A<2> may be inserted for reinforcing the tips of the soles and heels, and the whole sheet may be covered with a layer of harder-wearing material. The sheet may be moulded or formed by cementing layers together.
Patent GB-1103963-A (GB)
Title: Protective mouldings or beadings
Inventor: HORNER HAROLD
IPC: B60J10/02
Filed: 1965-05-27
Abstract: 1,103,963. Finishing edges of non-metallic sheet material. GRAHAMS (SEACROFT) Ltd. 13 May, 1966 [27 May, 1965], No. 22563/ 65. Heading B5K. [Also in Division E1] A moulding or beading which also may have a draught excluding strip 9 incorporated thereon, for straddling over a raw edge of a structure 8 comprises a zig-zag wire formation bent into a U or channel formation 3, the free end of each arm of the U being first inturned as at 2 and then outturned as at 3 to the end, and a covering of resilient material 5 the ends of which are doubled back inwardly to provide a housing for the wire formation 3, so that the resiliency of the wire loops on the inturned preferably bulbous ends 7 of the covering 5 provide the sole means for anchoring the moulding or beading in operative position on the structure.
Patent GB-587298-A (GB)
Title: Improvements in fluid pressure booster devices
IPC: B60T11/224
Filed: 1944-11-15
Abstract: 587,298. Hydraulic brakes. SCHNEIL, S. Nov. 15, 1944, No. 22591. [Class 103 (i)] In a unit for interposition in a hydraulic system for operating brakes or other devices comprising a differential piston which becomes effective to step up the pressure when a predetermined pressure is reached, the piston is movable within a shell which is initially moved in an operation, by the fluid pressure to close a valve device which when open permits return of liquid from the brake-operating cylinder to the pressure source. The unit which as shown is connected to a master cylinder 2 and a brake cylinder 10 by pipes 8, 11 comprises pistons 33, 34 connected by a tubular rod 35 and slidable respectively in the casing 12 and in a shell 18 slidable within the casing in guides 22. The chamber 14 of piston 34 is open to the atmosphere through a filter 15<1>.The pistons and normally the shell also. are urged to the left-hand by a spring 36 so as to seat a valve 48, carried by piston 33, on a member 42 slidable against a spring 45, in the end plug 20 of the shell 18 thus cutting off the chamber 37 of the shell from the chamber 17<1> which is connected by port 17 with the master cylinder. In this position also a valve 24 carried by the shell is separated from a shoulder 26 of the casing thus permitting flow of liquid from the brake cylinder towards the master cylinder through the port 32 and the passage 19 provided between the shell and the casing. In operation the master cylinder pressure acting on the outer face 20 of the shell against the pressure acting on the smaller area of the right-hand face of piston 33 moves the shell to seat the valve 24. Liquid from the master cylinder then flows to the brake cylinder 10 through chamber 17<1>, passage 19, past a non-return valve 30 and pipe 11. The pressure in chamber 17<1> also acts on the valve member 42, moving it and the valve 48 to the right thus slightly raising the pressure in chamber 37. When the pressure in passage 44 acting on the valve 48 is sufficient to overcome the spring 49, the valve is unseated so that this pressure acts in chamber 37 upon the piston 33 to transmit pressure at an increased ratio through a port 32 to the brake cylinder 10, due to the relatively smaller area of the piston that is subject to the brake cylinder pressure. To prevent the device from becoming operative by sudden increase of the master cylinder pressure a projection 47 on the valve spring seat 46 is provided to restrict the passage 44.
Patent GB-440630-A (GB)
Title: Improved tooth brush
IPC: A46B9/04
Filed: 1935-08-15
Abstract: 440,630. Toothbrushes. GIBBS, Ltd., D. & W., 105, High Street, Wapping, London. Aug. 15, 1935, No. 22998. Convention date, Oct. 3, 1934. [Class 19] The bristles of a toothbrush are arranged in two separate rows, Figs. 2, 3 with the tufts inclined towards one another. The tufts may be in pairs or in sets of three or four, Fig. 5. In a modification, Fig. 8, the tufts are set at the corners of a quadrangular pyramid.
Patent GB-933295-A (GB)
Title: Improvements in or relating to heat transfer elements
IPC: F28F19/06
Filed: 1961-06-26
Abstract: <PICT:0933295/III/1> A heat transfer element for heating or cooling liquids or gases and especially for use in sulphuric acid concentrating apparatus comprises a metallic core provided with a thin-walled tantalum sheath secured to the core by an intermediate layer of solid metallic bonding medium to protect the core from corrosion by the liquid or gas.  In the form shown in Fig. 2 a heavy-walled mild steel tube 17 has end caps 18 and 19 welded to it and a collar 30 for attaching the element to a wall of the vessel containing the liquid to be heated.  Tubes 22 and 25 provide the inlet and outlet respectively for the heating medium, e.g. steam. The tantalum sheath surrounds and is brazed to the end cap 19 and to the tubular section of the core up to the collar 30.  Apparatus for heating or cooling liquids may include a number of these elements projecting into the interior of the vessel containing the liquid.
Patent GB-850920-A (GB)
Title: Improvements in artificial legs
IPC: A61F2/64
Filed: 1959-07-06
Abstract: 850,920. Artificial limbs. BLATCHFORD, B.G. July 6, 1959, No. 23129/59. Class 81(2) A knee check comprises a strap 1 extending from the back of the thigh, under the lower curved part of the knee to the top of the front of the knee to the top of the front of the shin member. Preferably the thigh connection 3 is made adjustable. The band may be of webbing or of a strip of steel enclosed in cloth.
Patent GB-687835-A (GB)
Title: Improvements in or relating to handle fixing means for bags and cases
IPC: A45C13/26
Filed: 1951-10-04
Abstract: 687,835. Handbags. WOLF, W. Nov. 12, 1951 [Oct. 4, 1951], No. 23141/51. Class 133. Means for securing handles to bags &c. such as lady's handbags comprises a shell 1 formed with a top 2 sides which are inturned at 3 and provided with tongues 4 for securing the shell to the bag. The shell has an open end 6 and a depending lip 5. The handle end 7 is clinched in a clip 8 provided with a resilient catch element 8a so that when the handle end is passed through the opening 6 the catch element 8a is first depressed by the tip 5 and then, having passed it, springs out to prevent the removal of the handle end. The other end of the handle is similarly secured. The tongues 4 pass through apertures in a metal plate 10 and bent up against said plate.
Patent GB-384619-A (GB)
Title: Manufacture of aromatic oxy-carboxylic acids
IPC: C07C51/15
Filed: 1932-08-18
Abstract: Aromatic oxy-carboxylic acids are obtained by treating alkali or alkaline-earth salts of aromatic mono-oxy compounds with carbon dioxide in presence of an agent having solvent or suspending action; the said agent may be either the phenol itself or some other solvent or mixture of solvents, such as toluene or xyl ne. The reaction mixture may be prepared by dissolving caustic alkali in excess of the phenol, distilling off the water formed, and adding a further solvent, or not; the carbon dioxide may be passed in under pressure or not.  Examples are given of the preparation of salicylic and cresotinic (2-oxy-3-methylbenzoic) acid; naphthols and oxyquinolines are also specified as parent materials.
Patent GB-1161285-A (GB)
Title: Roller Coaster Chamfering Device
IPC: B26D3/16
Filed: 1968-05-16
Abstract: 1,161,285. Bevelling tubes. T. S. SIMMS & CO. Ltd. 16 May, 1968 [26 July, 1967], No. 23206/68. Heading B4B. A bevelling mechanism for bevelling the pile fabric at the ends of roller coater refills, i.e. the short lengths of fabric covered tubing used on paint rollers comprises a motor-driven cutter 10 having one or more blades 10a which has, or each have, cutting edges along the two side edges thereof, the blade or blades passing through a V-shaped cavity formed by two backing plates 14 so that the cutting edges effect a shearing cut, the blade(s) and backing plates being carried by a frame 12. The mechanism is shown as operating on a length of roller coater material 22 which consists of a hollow core 24 of fibreboard which has been helically wound with a strip of pile fibric 26. The covered core is subsequently at the V-shaped grooves. The backing plates 14 are flexible and adjustable and have hardenable metal strips 14a at their leading edges, the shearing and relief angles preferably being ten degrees. The cutter 10 may be mounted for travel relative to a length of coater material which is held in a fixed position. In both cases, the mechanism is movable towards and away from the length of covered core material.
Patent GB-945655-A (GB)
Title: Method of and apparatus for automatically protecting a d.c. motor against mechanicaloverload
IPC: H02P7/282
Filed: 1962-06-15
Abstract: 945,655. Control of D.C. motors. K. SCHNEIDER. June 15, 1962 [June 16, 1961], No. 23249/62. Heading H2J. A D.C. electric motor, e.g. for a hoist, employ-' ing automatic field weakening for obtaining higher than " rated " speeds at less than full load torque is protected against mechanical overload by an arrangement which (i) renders the field weakening system inoperative if the load torque is greater than that permitted at a given, e.g. maximum, speed and (ii) interrupts the motor supply if the torque exceeds the maximum permitted at rated speed. A voltage V# proportional to the applied load torque comprises the difference between a voltage V I  proportional to load current and a voltage V ## proportional to acceleration or deceleration. The latter voltage is derived by differentiating a voltage V# proportional to speed in a circuit CR. A device 2 renders the sign of voltage V ## independent of motor direction and whether it is accelerating or decelerating. Voltage V# is amplified at 3 and applied to two Zener diodes 4, 5 or other discriminating devices, which respectively conduct when the load torque exceeds the stipulated values, resulting in voltages across resistors 6 and 7 to effect the two degrees of overload protection. The automatic field weakening system is not described but it is stated that it may operate to provide constant power output.
Patent GB-204852-A (GB)
Title: Improvements in or relating to "fallers" for " gill" boxes or the like
IPC: D01H5/14
Filed: 1922-08-31
Abstract: 204,852. Pickles, J. T., and Pickles, F. G. Aug. 31, ]\J22. Gill bars or fallers.- The faller F, Fig. 1, is made, of hard steel and is recessed to receive an unhanged stock G which carries the pins G<1>. The stock, which is made of brass, aluminium, or steel or iron and is secured by vertical screws S, is interchangeable. The stock may be secured by a spring pin S<2>, Fig. 4, which may be swung to one side to allow the stock to be removed. Specification 14373/87 is referred to.
Patent GB-337770-A (GB)
Title: Improvements in apparatus for degreasing materials
IPC: C11B1/10
Filed: 1929-08-01
Abstract: 337,770. Imperial Chemical Industries, Ltd., and Rogers, F. E. Aug. 1, 1929. Fats and fatty oils, extracting by solvents.- In apparatus for degreasing materials by volatile solvents, for example as described in Specification 278,891, the heating means and the means by which the solvent vapours are cooled e.g. by a condenser through which water passes, are interconnected so that when the cooling ceases the heat supply is cut off. Such an interconnection is preferably combined with a safety device such as a lock, attached to the side of an extraction vessel, which by engagement with a lid on which is mounted a condenser, thereby releases the supply of heat. In a suitable apparatus, a vessel containing a volatile solvent, is heated by a gas jet and has mounted within it a lower condensing coil. The vessel is closed by a. hinged lid on which is mounted an upper condensing coil. An automatic valve 2, Fig. 2, of known type cuts off the gas (except a pilot jet) when water ceases to flow through the upper condensing coil (not shown). A handle 10 controls the admission of water to the upper and lower coils and is also in engagement with a latch bar 12 by a rack and pinion. When the lid 13 is closed a plunger 13<a> attached thereto, passes downwards through a hollow cylinder 14 mounted on the side of the vessel 1, and depresses a spring 15, thereby allowing the remote end of the latch-bar 12 to pass through the holes 13<b> and 16 which are then in alignment. When the lid 13 is open the spring 15 rises past the hole 16 and prevents the latch 12 from engagement. In operation, when the handle 10 is raised, the lid is locked by the latch-bar 12, and water passes through the upper coil whereupon valve 2 releases the gas. When the handle 10 is lowered. water is cut off from the top coil and.is passed through the lower coil, the gas is cut off and the latch-bar 12 is withdrawn from engagement, permitting the lid 13 to be lifted. Gas, as the heating means, may be replaced by electricity. steam or oil with the switches or valves necessary. The condensing coils may be replaced by water jackets.
Patent GB-1467849-A (GB)
Title: Vibration damping
IPC: G10K11/16
Filed: 1974-05-28
Abstract: 1467849 Vibration damping MINNESOTA MINING & MFG CO 28 May 1974 [29 May 1973] 23691/74 Heading F2S [Also in Division B5] Vibrations in a hopper (Fig. 1, not shown), an aircraft wall (Fig. 3, not shown), or other sheet material structure 10 are damped by applying firstly a flexible magnetic sheet 12 (e.g. barium ferrite particles in nitrile rubber) and then a coextensive flexible ferromagnetic sheet 14 (e.g. a steel layer). If the structure 10 to be damped is itself ferromagnetic, then the sandwich of sheets 12 and 14 is applied directly. If not, then a ferromagnetic layer (20) is first attached to the structure (16) by an adhesive layer (21, Fig. 4, not shown) and the sandwich then applied to the ferromagnetic layer (20). In addition to the magnetic force, the sandwich may be attached to the structure by adhesive or mechanical fasteners, and/or the flexible magnetic and ferromagnetic sheets may be attached to each other by adhesive. A sandwich of smaller surface area may be attached on top of the first sandwich to increase the damping effect. Suitable thicknesses are given for the flexible magnetic sheet, the flexible ferromagnetic sheet, and the ferromagnetic layer in the structure. The coefficient of friction (with reference to the structure) of the flexible magnetic sheet, and its magnetic holding power are also specified.  A method of testing the vibration damping sandwich is given.
Patent GB-360072-A (GB)
Title: Improvements in automatic feeders for poultry and the like
IPC: A01K39/012
Filed: 1930-08-08
Abstract: 360,072. Feeding - appliances for animals. SIMS & SONS, Ltd., S. and SIMS, R. S. C., Britannia Works, New Whittington, Chesterfield, Derbyshire. Aug. 8, 1930, No. 23749. [Class 5 (ii).] In an automatic feeder for poultry and the like in which the feed is discharged from a hopper by the agitation or movement thereof relative to a lower or base portion carrying or embodying a conical or equivalent distributer projecting upwards into the hopper, the hopper carries or has secured to it a platform or the like for the birds to stand upon, thereby agitating, rocking or moving the hopper relatively to the base or lower portion of the feeder. A hopper d, mounted above a trough a, which has a central conical portion b and which may be raised from the ground by means of legs c, has a platform h secured thereto by means of strips i. In the form shown in Fig. 1, the hopper is mounted by means of a cross-bar f on a vertical rod e provided with a collar g which rests in the dished upper end bl of the cone b. In a modification, the platform h is attached to the lower end of the rod e which projects through the base of the trough. In a further modification, Fig. 3, the hopper d is pivoted to the trough a by means of pivots j on the latter which pass through holes i<1> in the members i. Cross members k mounted on the hopper, project over the sides of the trough to limit the rocking motion of the hopper. In all forms, a lid may be provided to overhang the trough a.
Patent GB-639676-A (GB)
Title: Improvements in the protection of ferrous metal surfaces subject to contact with hotfurnace gases
IPC: C23C4/18
Filed: 1947-08-29
Abstract: A method of protecting ferrous metal surfaces against corrosion due to contact with hot furnace gases comprises spraying the surfaces with a thin coating of aluminium and subsequently treating the aluminium surface with a partly hydrolyzed organic silicate.  The surfaces may be sprayed with aluminium to a thickness of .002" to .01" and then treated with a solution made by shaking together for 20 minutes, 81 parts by volume industrial methylated spirit; 30 parts 0.06 per cent hydrochloric acid and 1 per cent ethyl silicate and then adding a further 160 parts of ethyl silicate, the solution being used after standing for 1-6 hours.