baber/WOPTO huggingface dataset:
Patent GB-185815-A (GB)
Title: Improvements relating to stuffing boxes for compressor piston rods and the like, and to oil pressure supply apparatus therefor
IPC: F16N7/40
Filed: 1921-06-06
Abstract: 185,815. Hidaka, H. June 6, 1921. Force-feed lubricating; separating oil and gases. - The stuffing-box for the piston-rod or plunger of a compressor, pump or steam or gas engine is supplied with oil by a pump, the supply and the pressure being controlled by a valve controlled by the pressure in the compressor &c. cylinder. In the arrangement shown in Fig. 1 a space 27 in the stuffing-box of a cylinder 2 is supplied with oil by a pump 12 through pipes 9, 11 which communicate by a space 8 formed by the reduced diameter of a piston valve 4 in a chamber 3. The upper end of the valve 4 is open to the pressure in the cylinder 2 through a pipe 5, while the lower end communicates with the pipe 11 through a passage 24. The pressure in the cylinder 2 is thus transmitted to the oil in the space 27, while, if the pressure in the cylinder 2 falls, the oil pressure raises the piston valve and closes the opening of the pipe 11. In the latter case the pump discharges through a relief valve 36 and by-pass 37 to the supply tank 30. The piston valve may be cushioned at the ends by springs. In the modification shown in Fig. 2 the valve has a single head and a stem of reduced diameter. The pipes 9 and 11 communicate by a through passage 8 in the stem and the oil pressure acts both on the end of the stem through the passage 24 and on the underside of the piston head through a passage 25. In a further modification the piston head is replaced by a diaphragm. The oil space 27, Fig. 1, in the stuffing-box is packed by cup leathers 33, 34, separated by a ring 13. A leakage space formed by a ring 14 and cup leather 35 is connected by a pipe 17 to a separator 18 from which gas is discharged by a pipe 19 and oil is discharged to the tank 30.
Patent GB-110418-A (GB)
Title: Improvements in and relating to Water Tube Boilers.
Inventor: HOUGHTON SIDNEY ALEXANDER
IPC: F22B37/22
Filed: 1916-11-01
Abstract: 110,418. Houghton, S. A. Nov. 1, 1916. Baffles in water space; feed-water supplying.- In a water-tube boiler having downcomer and upcomer tubes opening into a lower water drum, as, for example, in a Yarrow boiler, the drum is fitted with a hollow longitudinal member for directing and regulating the circulation through the tubes. The hollow member 2 is supported eccentrically in the drum 1 by a shaft resting in end bearings 8, 9. The shaft may project through a stuffing- box at one end of the drum and be provided with a hand wheel or lever, and with a pointer for indicating the position of the hollow member. Slots or perforations may be formed in the sides of the hollow member in order to supply additional feedwater at any desired point. The hollow member may be supplied with feed-water through one or both ends.
Patent GB-461060-A (GB)
Title: Improvements in or relating to apparatus for display or advertising purposes
IPC: G09F11/23
Filed: 1935-08-03
Abstract: 461,060. Mechanical toys. WOOD, A. W. Aug. 3, 1935, Nos. 15675/36 and 15676/36. Divided out of 451,413. [Class 132 (iii)] [Also in Group XVIII] In advertising, display, or amusement apparatus in which objects or articles are carried by a reciprocating support, the movement of which in one direction is effected by springs and differs in speed from its movement in the other direction, the movement against the spring action is produced by electromagnetic means operated by alternating current in which one part of the wave is eliminated. The elimination of part of the wave may be effected by a rectifier E<1> of the metallic oxide type. Fig. 1 shows two strips A, A<1> of fabric &c. arranged side-byside and each attached at one end by a bar B to springs C and at the other end to an armature E controlled by electromagnets D. The strips rest on a flat surface F of glass &c., and deflectors H are provided to divert the objects G from one strip to the other. A sponge rubber or like pad J is disposed between the armature E and a fixed or adjustable abutment K to dampen the armature movement. A fixed abutment O, which may also be adjustable, may be provided to limit the swing of the armature E, and an adjustable abutment P may be added to adjust the resilience of the armature, and a spring Q, adjustable or otherwise, to counterbalance to some extent the springs C. In a modification, the armature is hinged longitudinally, and swings between two pads, and in another form the armature forms, or is part of, the core of a solenoid. Automatic electric or mechanical means may be provided for controlling the amplitude of swing of the armature with changing load. The objects may rotate during their travel,-and may move in front of and behind a screen separating two strips A, A<1>. The objects may be unequally loaded, or provided with teeth to engage the strip, to improve their rate of motion, and they may take the form of platforms supporting dresses &c. Specification 451,413, [Group XVIII], is referred to.
Patent GB-553977-A (GB)
Title: Improvements in or relating to mechanism for reversing internal combustion engines
IPC: F01L13/02
Filed: 1941-12-05
Abstract: 553,977. Reversing. PFAEFFLI, M. Dec. 5, 1941, No. 15683. Convention date, Jan. 22. [Class 7 (v)] In a reversing device in which a camshaft 4 is driven through an angularly adjustable coupling comprising radial arms 6, 7 which are movable between internal abutments 13, 14 in a driven member 1, the adjustment is effected by means of a rotary valve 17 controlling the admission of oil under pressure to spaces 15, 16 on either side of the arms 6, 7. As shown, the arms 6, 7 are mounted on the cam-shaft and the member 1 is a gear wheel driven from the engine crankshaft 26. A single rotary valve may control the supply of oil to two or more such devices for reversing different cam-shafts.
Patent GB-235897-A (GB)
Title: Improvements in induction motors
IPC: H02K17/10
Filed: 1925-06-18
Abstract: 235,897. British Thomson-Houston Co., Ltd., (Assignees of Hall, C. I.). June 20, 1924, [Convention date]. Alternating-current motors; field magnets; polepieces; casings.-An induction motor is provided with a number of separate shading-coils arranged one within the other and enclosing different areas of the pole faces so as to give a progressive shift to the flux in the air-gap. Magnetic shunts are provided to reduce the vertical component of flux threading the disc. Increased torque is thus produced and humming is reduced. As shown applied to a gramophone motor, field coils 25 are mounted on hollow cores 12 integral with a skeleton casting 10, the cores being provided with grooves 27 in which are located a number of shading-coils 26 defining pole regions A - - D producing a progressive flux shift across a disc rotor. The vertical component of flux threading the disc is reduced by magnetic shunts 28 keyed to the pole regions D. The co-operating pole faces 24 are mounted upon a skeleton casting 11, the castings 10, 11 fitting together by screws and forming a box-like enclosure for the motor. Specification 229,898 is referred to.
Patent GB-1026815-A (GB)
Title: Improvements in packaging machines
Inventor: HILL DENIS
IPC: B29C67/00
Filed: 1964-04-16
Abstract: 1,026,815. Packages. FORGROVE MACHINERY CO. Ltd. March 9, 1965 [April 16, 1964], No. 15858/64. Heading B8C. [Also in Division B5] A package, comprising a strip 10 (Fig. 3, not shown) of thermoplastic material having a tray 11 and receiving-pockets 12 formed therein and mounted on a flat base sheet 14 of stiffer card material, is produced by feeding the strip 10 intermittently through a vacuum forming- machine to form a series of trays 11 and then into a sealing unit 13 (Fig. 1, not shown). The base strip 14 is also fed into the sealing unit and the two strips are sealed together along the longitudinal edges of the trays and also transversely between the trays. On leaving the sealing unit the combined strips are cut into individual packages, filled and overwrapped in a heat sealable tubular plastics material, or enclosed by individual transparent plastics covers which are sealed at their edges to the perimeter of the strip 10. In another embodiment the pockets are filled as the trays leave the sealing unit and before they are cut into individual trays.
Patent GB-241972-A (GB)
Title: Improvements in telephone transmission lines
IPC: H04B3/46
Filed: 1924-07-02
Abstract: 241,972. Rosen, A. July 2, 1924. Measuring the unbalance of telephone and like circuits; induction, preventing and minimizing.-In a method of measuring the impedance unbalances between the side and phantom circuits of one or more quads with a view to reducing cross-talk and overhearing, the unbalances of each section are measured by means of an alternating current bridge, the distant end of the section being terminated by a network simuiating, as regards interference between the circuits, a section of infinite length. Fig. 2 shows such a network in which, for a loaded line at speech frequencies, the elements may be taken as plain resistances such that W = X = Y = Z and M = N, the values being calculated from the characteristic impedances of the side and phantom circuits. Fig. 4 shows the form of alternating current bridge used. This has fixed and variable condensers 3, 4, and in parallel therewith equal resistances 5, 6 and a variable resistance 7 which may be put in series with either of the equal resistances by means of a switch 8. The connections to the quad ABCD are varied by means of a switch 12, and four determinations are thus made, from which the impedance unbalances may be calculated. The condensers 3, 4 may be replaced by a differential condenser, and the resistances 13, 14 may be omitted, the fourth wire of the quad being disconnected. When measurements have been made for each section, the line is joined up in the most advantageous manner (1) by arranging the order of the sections, and (2) by crossing the wires of successive sections. It is shown that, on account of attenuation, the interference values of a particular section depend upon the position of the section in the line, so that every large unbalance should be neutralized by an opposite unbalance located as close to it as possible. For short lengths of line it is preferable to consider the effect of crossing from each end of the line. The line may be divided into parts comprising a few sections, the sections of each part being balanced at a high-frequency and the parts then being balanced at a lower frequency; or the balancing may be carried out in three stages. For short lengths of line, only a single frequency need be used.
Patent GB-725394-A (GB)
Title: A liquid atomising nozzle
IPC: B05B1/34
Filed: 1953-06-10
Abstract: 725,394. Spray-producers. TECALEMIT, Ltd. June 10, 1953 [July 9, 1952], No.16014/53. Class 69 (3). A liquid-atomizing device comprises a nozzle 1 with a conical converging outlet and additional passages 9 which open into an annular chamber 8 provided by a screwed cap 2 with a diverging outlet 7 from which the spray issues.
Patent GB-629644-A (GB)
Title: Improvements in and relating to a driving spring clockwork-operated time releaser
IPC: F42C9/04
Filed: 1944-08-22
Abstract: 629,644. Ammunition projectile fuzes ; mines. DELAY, F. Aug. 22, 1944, Nos. 16017 [Convention date, Feb. 19, 1943], 16018 and 16019 [Convention dates, Jan. 5, 1944]. [Classes 9 (i) and 9 (ii)] [Also in Group XXXVIII] A clockwork timing mechanism comprises a disc 36 driven by a driving spring 18 and having on its face a multi-turn spiral groove 35 co-operating with a locking member 29, which retains a spring striking member 25 as long as the locking member engages the groove. The striking member 25, adapted to strike the percussion cap of a mine, or close an electric contact to produce explosions, optical or acoustic signals or operate a camera, is mounted in a slot in the locking member 29 and comprises a head 25<SP>1</SP> which is adapted to be released through an aperture 31 when the locking member 29 has been moved over to the left by the spiral groove 35 and a catch 32 on the looking member has been moved out of the spiral groove into a notch 35<SP>1</SP> by a spring 45. The disc 36 is driven by the hub 5<SP>1</SP> and the coil spring 18 under control of an escapement 11 which is connected by a train of gears to the hub 51. The spring 18 is wound by turning a drum 14 which is held in wound position by a ratchet 17. During the winding the escapement is locked by a leaf-spring moved into engagement with it by a ring 21. The apparatus is set by turning a cap 39 which has slots engaging catches 33, 34 on the locking member 29. As the cap is turned the locking member turns and the catch 32 moves a certain distance along the spiral groove indicated by a 24 hour clock face on the cap 39 and day marks along the slot guiding the catch 33. A safety lever 42 is moved to stop the catch 34 while the mechanism is set. A lever 48 obstructs the path of the striking member 25 until the mechanism has run a certain time when a toothed segment on the lever escapes from a pinion meshing with the gear train. In a modification, Fig. 6 (not shown), the catch 32 is moved into the notch 35<SP>1</SP> by the pressure of the spring 26 of the striking member 25 and chamfered surfaces on the head 41 and the member 29 and a safety lever pivoted on the cap 39 engages a groove in the plunger 25 to lock it and in this position prevents the protective cap 2 being replaced. In a modification for a projectile shown in Fig. 10, the striker 65 is fixed and the primer 69 is adapted to be moved by a spring 72 to strike it when released by the locking member 29. The spring is wound and the mechanism set by turning the cap 62 connected by a clutch 63 to the casing 4 of the mechanism. An inertia bush 75 locks the primer by means of balls 73 and a centrifugal locking segment 78 prevents return of the bush after the locking has been released by the dispatch of the projectile. The primer 69 is locked by a centrifugally operated safety member 79 controlled by an escapement and released after departure of the shell.
Patent GB-554042-A (GB)
Title: Improvements in or relating to vibratory relays
IPC: H01H51/34
Filed: 1941-12-12
Abstract: 554,042. Electromagnetic interrupters STANDARD TELEPHONES & CABLES, Ltd., and TOWNER, S. H. Dec. 12, 1941, No. 16049. [Class 38 (v)] In an electromagnetic vibrator which produces a series of impulses and is driven by selfinterrupting contacts, to prevent the earlier impulses differing from later impulses owing to the more complete energization of the magnet at the start, the magnet VM is arranged to be pre-energized by direct current along the circuit battery, R 1 , S 1 , VM, S 2 , to earth, this current being in the opposite direction to the current through the magnet when the vibrator is vibrating. To start the vibrator vibrating, switches S, S, are moved into their other position. This short-circuits VM and its consequent deenergization releases the shortcircuiting contact V which moves upwards so that the magnet VM is now energized through the circuit battery, R 2 , S 2 , VM, S 1  earth. Contact V moves back to short-circuit The magnet and the interrupting process continues.
Patent GB-1102413-A (GB)
Title: Electronic tachometer
IPC: G01P3/489
Filed: 1965-04-14
Abstract: 1,102,413. Digital tachometers; counters. V. A. ILJASHEVSKY, and N. N. CHERNOV. 14 April, 1965, No. 16105/65. Headings G4D and G4H. A photo-electrically-sensed perforated, disc produces pulses at a frequency proportional to the speed of rotation of a shaft, these pulses are fed to a pentode gate which is opened for a selected period of 1, 2 or 3 seconds and the pulses passed by the gate are counted in a five decade counter. Each decade comprises six vacuum tubes counting 2x5. A two decade mechanical counter is stepped once for each measurement and has a pair of decimal commutators providing an electrical indication of the measurement number. The outputs of the counters are serialized by stepping switches and fed to a printer. The output of the five-decade counter is also fed to a neon tube indicator. Detailed circuits are described. The mechanical counter. Fig. 5, is actuated by an electromagnet 50 linked to pawls 51, 52. Pawl 51 actuates the units ratchet wheel 43. The tens ratchet wheel 45 and gear 46 are freely rotatable on shaft 42, pawl 52 only engaging wheel 45 when it drops into the slot of disc 44 after multiples of ten pulses have been counted.
Patent GB-666437-A (GB)
Title: Record material for use in a manifold assembly
IPC: B01J13/02
Filed: 1949-06-17
Abstract: 666,437. Carbon papers. NATIONAL CASH REGISTER CO. June 17, 1949 [July 31, 1948], No. 16153/49. Drawings to Specification. Class 100 (iv). [Also in Groups VIII and XV] A sensitized record sheet, a plurality of which are used in a manifold assembly comprises a base sheet having on the front surface thereof a coating containing particles of an absorbent substance and on the rear surface a pressure rupturable coating having entrapped therein droplets containing an adsorbate substance which is colour reactive with the absorbent substance to produce a distinctive colour, the pressure rupturable coating being ruptured under pressure from a printing or typing machine to release the entrapped droplets from the surface of the rear coating to contact with the absorbent contiguous surface of the next sheet. The absorbent surface comprises a coating of attapulgite or like clay or a sodium aluminium zoolite the Na base exchange cations of which have been replaced by cations of Ni, Cu, Fe, Zn, Hg, Ba, Pb, Cd, and the compounds giving colour reactions therewith are Crystal Violet, Malachite Green &c. lactones having formulµ 3.3-bis-(p-dimethylaminophenyl- 6-dimethylamino phthalide 3.3-bis(p-d-methylaminophenyl) phthalide 3.3-bis-(p-dimethylaminophenyl)-4.5.6.7.-tetrachloro phthalide 2.4.-bis (p-dimethylaminophenylazo)-anilino)-6-hydroxy symtriazine. The transfer coating is made by dissolving 1 pt gelatine having an isoelectric point of pH 8 and a jelly strength of 275 gms (Bloom Gelometer) in 3 pts water and into 4 pts of this solution there are dispersed 3 pts of a solution of crystal violet lactone mixed with an equal part of bis-(p-dimethylaminophenyl) methane as methylene base. The solution of lactone and methylene base is made by dissolving 1-¢ pts of the lactone and base in 97 pts chlorinated diphenyl having a chlorine content of 48 per cent. The emulsion is applied at a temperature of 150 F. to the paper and is dried by hot air and is then treated to drive the droplets into the interior of the film and form a dry skin thereover by wetting the surface with water containing 1 per cent formaldehyde and 0.1 per cent wetting agent, e.g. dioctyl ester of Na succinate. In making the receiving surface the paper is coated with a mixture comprising 20 per cent starch which has been cooked in water at 200 F., and 4 pts attapulgite dispersion (1 pt attapulgite to 3 pts water). A mixture of starch, casein and butadiene styrene copolymer may replace the starch. Specifications 629,165, [Group VIII], and 666,438 are referred to.
Patent GB-151720-A (GB)
Title: Improvements in or relating to buttonhole sewing machines
IPC: D05B3/06
Filed: 1919-06-27
Abstract: 151,720. Gouldbourn, J., Jackson, H. H., and British United Shoe Machinery Co. June 27, 1919. Button-hole sewing-machines. - Buttonholes comprising a fixed number of stitches are made of different lengths by means of devices which act upon the feed-transmitting mechanism so as to vary that portion of the work-feeding movement imparted to the work clamp by the feedcam during the stitching operation. In the application of the invention of the machine described in Specification 3293/13, the work-clamp carrying-frame 2 is moved longitudinally from buttonhole-cutting to sewing position and during sewing by a lever 4 having a roll 18 engaging the camgroove 20 in the feed-cam. An arm 16 of the lever carries a roll 22 engaging one of a series of cam slots 24 in a disk 26, Fig. 3, which can be turned to engage any desired slot with the roll 22 and is locked by a clamp screw 38 and a pin 30. The cam-slots modify the effect of the feedcam on the lever 4 and thereby vary the feeding- movement imparted to the frame 2 during stitching, and may be so shaped as to keep constant either the total movement of the work or the movement of the work from cutting to stitching position.
Patent GB-957706-A (GB)
Title: A method of etching
Inventor: NAGAI AKIO
IPC: C25F3/14
Filed: 1963-04-24
Abstract: 957,706. Etching. IUVATINI SANGYO KABUSHIKI KAISHA. April 24, 1963, No. 16215/63. Drawings to Specification. Heading B6J. A method of etching a workpiece, e.g. a steel plate, comprises exposing to light a film of light-sensitive composition carried on a permeable support such as metal gauze and masked by a sheet of opaque paper perforated with a design, developing to remove the unexposed composition, placing the developed film and support against the workpiece, coating with a lacquer which passes through the support to cover the workpiece where not protected by the unexposed remaining parts of the film and to act as an etching resist, and etching with ferric chloride solution in hydrochloric acid, the workpiece being coated before etching on its back surface with a corrosion-resisting varnish, which is washed away with thinners after etching.
Patent GB-164741-A (GB)
Title: Improvements in or relating to securing means for gun parts
IPC: F41A21/48
Filed: 1920-05-17
Abstract: 164,741. Berthier, A. V. P. M. Nov. 20, 1918, [Convention date]. Stocks.-Consists in securing the forestock 2 to the barrel 4 by two transverse pins 6, 8, locked against withdrawal by a bayonet-joint device. The front pin 6, Figs. 1, 3, and 4, passes through holes 18, 20 in a nose-cap 16 rigidly secured to the stock and engages a semicircular groove 22 in a depending part 24 of the barrel. The pin has a lug 12 adapted to pass through a notch 26 into a locking recess 28 extending 270‹ round the interior of the hole. The pin is rotated bv means of an external handle 10. The rear pin 8, Fig. 2, passes through the barrel 4, stock 2, and band 42 and is locked in the same manner as the front pin.
Patent GB-599398-A (GB)
Title: Improvements in welded tanks
IPC: B23K9/00
Filed: 1945-06-27
Abstract: 599,398. Making tanks ; welded joints. MORANE-SAULNIER.June 27, 1945, No. 16426. Convention date, May 15, 1940. [Classes 83 (ii) and 83 (iv)] In a method of making welded tanks, the flanged vertical walls' B, Fig. 1, are welded to the bottom A by forming a continuous seam a at a distance from the edges of the flanges and tank bottom, a transverse spot weld b is made from the end of this seam to the edges of the bottom and flanges and an arc weld is made at c between the spot weld line and the end of the flanges. Welds d, Fig. 3, are then made, extending transversely from weld a to the edges of the tank, thus confining leaks to the space between two such welds d and allowing the edges of the tank to be welded together along their length between two welds d in order to stop any leaks that may occur. Tanks may have a welded angle C as shown or an integral bent flange obviating the necessity for a separate angle C.
Patent GB-275573-A (GB)
Title: Improvements in or relating to thickening filtering apparatus
IPC: B01D35/12
Filed: 1927-06-22
Abstract: 275,573. Vernay, J. B. Aug. 3, 1926, [Convention date]. Filters having sheet filtering-materials.-A thickening filter comprises hollow elements 1 connected in groups at the bottom by pipes 8 to a suction main 10 and at the top by pipes 9 to a main 11 through which fluid under pressure is supplied to detach the cakes formed on the elements. The connections to the mains of each group are controlled by valves 12, 13, the whole series of valves being operated successively by. cams 25 on a single shaft 28, which is rotated intermittently. Each valve 12 is normally kept open by contact of a roller 24 on the valve lever with a cam 25 but is closed by a spring 16 when the roller passes into a depression 26. Each valve 13 is normally closed by a spring 15 but is opened by contact of an arm 27 on the shalt 28 with a roller 23 on a lever 17. The valves 12, 13 for one group are operated simultaneously.