baber/WOPTO huggingface dataset:
Patent GB-345828-A (GB)
Title: Dynamo-electric machine
IPC: H02K27/10
Filed: 1930-04-08
Abstract: 345,828. Motors. FAIRWEATHER, W., 65, Chancery Lane, London.-(Singer Manufacturing Co.; Elizabeth, New Jersey, U.S.A.) April 8, 1930, No. 11101. [Class 35.] Brush-holders; alternating- current commutator machines.-An alternating-current commutator motor of the type having shortcircuited brushes for repulsion starting and a commutator shortcircuiting device for induction running has a speed-responsive device for " kicking off " at a predetermined speed spring-acting brush-lifting means which is set in a position of repose with full brush-lifting energy stored in a spring. Figs. 1 and 2 show one form with the brushes 25 and commutator short-circuiting disc 16 in the starting and running positions respectively. The disc 16 is carried floatingly by springs 17 on studs 15 on a sliding coned disc 11 which is spring pressed against a boss 6 fast on the shaft. Centrifugal weights 8 in the boss engage the coned disc 11 and, at a limiting speed, bring the slotted disc 16 into contact with the commutator segments and by means of a flange 12 on the disc 11 actuate the brush-lifting levers 35. These levers are pivoted at 36 on bosses 19 of the motor end cap 1<1> and have V-shaped notches 39 into which spring-pressed plungers 40 can snap when the inward movement of the disc 11 rocks the levers 35. At starting, the plungers 40 rest on prominences 44, with their springs 42 ready to lift the brushes, and the brushes rest on the commutator under the action of their springs 27. At the limiting speed, the levers 35 are positively held by the plungers 40 in the brush-raising position with their extremities in contact with ledges 34 on the brush tubes 24, shown in detail in Fig. 5, and with the disc 11 running without contact in their clawed ends 38. The brushes are screwed at 26 into the tubes 24 which travel in guides 21 under the action of springs 27, rotation of the tubes being prevented and the brush-travel being limited by pin screws 31 and slots 32 in the tubes.
Patent GB-372521-A (GB)
Title: Improvements in electro-optic control system
IPC: H03L1/04
Filed: 1931-04-15
Abstract: 372,521. Thermostats. COMMUNICATION PATENTS, Inc., 60, Broadway, New York, U.S.A. April 15, 1931, No. 11138. Convention date, July 24, 1930. [Class 64 (ii).] Optical interference bands falling upon photo-electric cells are used for measuring or controlling temperature or other physical quantities. Light from a source 5, Fig. 1, is reflected from a surface 10 which is liable to displacement due to thermal expansion or other cause. By the semi-reflector 8 and lens 20 interference bands are projected on to a photoelectric cell 21 having two cathodes 22, 23. Displacement of the surface 10 causes displacement -of the interference bands so that one cathode, for example 22, becomes operative. A current impulse passes through the impulse counter 30 which registers it, disables the valve 26 and counter 35, and enables the oscillator 40 to generate oscillations in the coil 17. These act on the magnetic body 12 associated with the reflector 10, so as to annul the latter's displacement. Displacement in the opposite direction actuates the amplifier 26, counter 35 and oscillator 46, and disables the parts 25, 30, 40, so that coil 16 becomes effective instead of coil 17. As applied to the thermostatic control of a piezo-electric crystal, the crystal 86, Fig. 3, on expanding or contracting with temperature moves the reflecting surface 77 and so displaces the interference bands, projected from the semi-reflecting surface 76, on to the photo-cells 102, 103. One or other of the cells (according to the direction of displacement) becomes active and causes oscillations to pass from the oscillator amplifier 94 to one or other of the transformers 89, 90, which are associated with rectifiers 91, 92. Thus current passes in one direction or the other through thermo-couples 79, which heat or cool the crystal 86 by means of the Peltier effect and so restore the original temperature.
Patent GB-179410-A (GB)
Title: Improvements in domestic nut graters or nut mills
IPC: A47J43/25
Filed: 1921-04-18
Abstract: 179,410. Mapleton, H. April 18, 1921. Graters.-In a domestic grater for nuts &c. wherein a rotary grating-cylinder is disposed within an outer casing, the cylinder 1 is perforated and has outwardly projecting teeth formed by pressing out the sheet metal, and the nuts are held in a hopper and pressed by a plunger 11 against the cylinder. The grated material passes into the cylinder and thence through an extended portion 8, which may be fixed or detachable, the skin and ungrated portions passing between the cylinder 1 and the casing 6 into an enlarged portion 10, from which they are discharged. The extension 8 is detachably secured to the cylinder 1 by pins 9 on the cylinder which engage bayonet-slots on the extension 8. The enlargement 10 may be replaced by a vertical outlet similar to the hopper, the extension 8 then being dispensed with or shortened.
Patent GB-559621-A (GB)
Title: Air intakes for aircraft
IPC: B64D33/02
Filed: 1942-08-10
Abstract: 559,621. Propelling aircraft. VOKES, C. G. Aug. 10, 1942, No. 11180. [Class 4] To prevent entry into an air intake of an aircraft of sand and dust which is contained in the air current from the propeller when the aircraft is on the ground, the opening of the intake is arranged to be shielded from direct entry of the current in these conditions whereas it is directly exposed to substantially the full flow of the air current in the relatively more backward direction which it assumes when the aircraft is flying As shown, an engine air intake 2 formed as a scoop on the upper part of the engine fairing 1 has the opening inclined to the direction of flight so that it conforms to the spiral air flow from the propeller, indicated by the arrows, when the aircraft is stationary or travelling at slow speed on the ground. In these conditions, air is drawn in by the suction in the intake and is freed from the heavier particles of sand and dust which due to their momentum are carried past the intake while when the aircraft is in flight, the current enters the intake directly. A filter may be fitted to the scoop and air directing vanes may be provided in front of the filter and may be adjustable with a retractable undercarriage or variable pitch screw and be arranged to close the entrance when the engine is stationary.
Patent GB-352092-A (GB)
Title: Improvements in and relating to antifriction roller or ball bearings for the axles of railway and other vehicles
IPC: B61F15/16
Filed: 1930-04-09
Abstract: 352,092. Ball and roller railwayvehicle bearings. PETERS & CO., Ltd., G. D., Windsor Works, Slough, and MAcIVER, R. G., 3, Central Buildings, Westminster. April 9, 1930, No. 11242. [Class 12 (i).] A ball or roller bearing having a spherical outer race track is carried in a housing 20 pivotally supported in an axle-box 4, the housing 20 having an open side 21 through which the bearing can pass when assembling or dismantling. As shown a lug under the housing 20 has a pivot pin 6 supported in bearings 7, 8, in the axle-box 4, and the latter which is a one-piece casing has abutment lugs 31, 32 to prevent longitudinal motion of the housing. The housing is an integral unit and the bearing is retained therein by a notched ring 23 having a bayonet joint connection therewith. The inner race ring 9 of the bearing may be retained on a conical portion of the axle by a locked nut 10, or it may be carried upon a taper sleeve, which may be split, carried upon a cylindrical part of the journal. The axle-box 4 is closed on the inner side by a packing member 56 having annular packing grooves and a flange 57 projecting into a recess between a cover plate 58 and the axle-box 4, and on the outside by a cover 30. The latter may be large enough for the complete ball or roller bearing to pass through the recess covered thereby. Specification 195,163, [Class 12 (i), Bearings &c.], is referred to in the Provisional Specification.
Patent GB-196808-A (GB)
Title: Improvements in or relating to vacuum insulated or jacketed vessels
IPC: A47J41/02
Filed: 1922-04-21
Abstract: 196,808. Stewart, C. J., Archer, R. M., and Eagar, G. F. F. April 21, 1922. Cold and heat retaining vessels. - An evacuation connection for vacuumjacketed vessels comprises a boss 3 with a central aperture 6 and a recessed flange 9 seating against the inner surface of the outer wall 4 of the vacuum space 5, and a nut 7 having a web 11 threaded to engage the boss and provided with apertures 14 through which molten solder may flow into the recess 10 of the boss and a recess 13 in the nut to unite the boss to the wall 4 and the nut to the boss and to the wall. The hole in the wall 4 is larger than the boss to allow the solder to pass freely. The boss may have an annular channel 16 around a conical projecting part 17 over which is fitted a soft-metal sealing-off tube 18, the tube being united by solder in the channel. The nut may have a flange 19 to engage the outermost wall of jacketed vessels surrounded by vaporizer chambers, and a covering cap may be provided.
Patent GB-497908-A (GB)
Title: Improvements in or relating to hard rubber articles and methods of producing the same
IPC: B29C37/00
Filed: 1938-04-13
Abstract: 497,908. Coloured hard rubber. AMERICAN HARD RUBBER CO. April 13, 1938, No. 11351. Convention date, April 23, 1937. [Class 70] A coloured hard rubber article having areas which reflect light with different degrees of intensity according to the angle from which the article is viewed, is made by partly vulcanizing a rubber mix containing an arsenic sulphide, with or without other colouring matter, stretching, and completing the vulcanization while maintaining the stretched condition. A mix, e.g. 58 parts of rubber, 22 parts of sulphur, 0À2 parts of linseed oil, 0À2 parts of magnesia, 3 parts of zinc oxide, 0À6 parts of " Allax " (Registered Trade Mark) and 16 parts of arsenic trisulphide is moulded into a disc 7 having bosses 9, 10, on one or both surfaces, and vulcanized for 10 min. at 50-55 lb. steam pressure. This is placed in a mould 15, 16, under pressure, and vulcanization completed at about 360‹ F. for 15-30 min. The pressure distorts the disc, causing the colouring matter to be oriented, which orientation persists when the temperature is raised and the mass becomes sufficiently plastic to take up the shape of the mould. The article is allowed to cool before being removed from the mould. Instead of a moulded disc, cut pieces or crumb of partly vulcanized sheet may be placed in the mould.
Patent GB-1111347-A (GB)
Title: Improved co-axial plug and socket coupling
Inventor: FIELD KEITH ARTHUR
IPC: H01R13/646
Filed: 1966-03-15
Abstract: 1,111,347. Two-part couplings. DEREHAM ENGINEERING Ltd. 14 Feb., 1967 [15 March, 1966], No. 11377/66. Heading H2E. In a coaxial plug-and-socket connector, the outer conductive sleeve 12 of the plug is provided with an inward projection 12a which engages an annular recess 15a in the outer conductive sleeve 15 of the socket so that the concentricity of the inner plug-and-socket contacts 13, 16 is disturbed and positive contact is ensured. The insulating sleeve 11 of the plug has a shoulder 11b, a tapered portion 11a and an annular barb 11c which respectively engage the end surface, tapered portion 14b and annular recess 14c of the insulating sleeve 14a of the socket 14.
Patent GB-892533-A (GB)
Title: Improvements in or relating to agricultural tool mountings
IPC: A01B63/02
Filed: 1957-04-08
Abstract: 892,533. Agricultural implements. PALLOT, L. C. April 8, 1958 [April 8, 1957], No. 11433/57. Class 6(1). A reversible plough for attachment to the lift linkage of a tractor comprises a shaft 13 rotatably mounted in a frame 1 and carrying tool beams 2 which are angularly spaced and adjustable on the beam, the shaft being rotated by means of a device connected by a chain M to the tractor so that as the plough is raised to lift the plough the chain is first tightened to unlock the plough beams by means of a pivoted lever 26 a hand-lever 25 connected to the chain is swung over by hand to bias a rocking plate 23 to one side or the other and further raising of the plough causes the shaft 13 to rotate to bring the opposite plough beam into position by the engagement of the plate 23 with a projection 22 on a plate 22 attached to the shaft 13. Lowering of the plough causes the chain to slacken and the plough beam to be locked in position by the lever 26.
Patent GB-142140-A (GB)
Title: Improvements in or relating to eddy current speed indicators
IPC: G01P3/495
Filed: 1920-04-24
Abstract: 142,140. Zufle, F. June 14, 1917, [Convention date]. Magnetic speed indicators. - In an eddy-current instrument, the effects of temperature a r e minimized by the use of separate closing rings 8 shaped to correspond with the tapered poles of the horseshoe magnets 5, and loosely mounted in their holder 7 which is screwed to the rotated disk 4 carrying the magnets. The eddy disk 9 connected with the pointer 12 is corrugated as shown to conform with the shape of the magnet poles and the rings.
Patent GB-491208-A (GB)
Title: Improvements in or relating to electric gas-discharge tubes
IPC: C09K11/02
Filed: 1938-04-14
Abstract: 491,208. Discharge lamps; luminescent screens. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. April 14, 1938, No. 11474. Convention date, April 19, 1937. Drawings to Specification. [Class 39 (i)] [Also in Group XX] A screen for electric gas discharge tubes comprises two layers of luminescent glass with an interposed translucent layer of a material which is transparent to the ,exciting radiation. As embodied in a lamp the screen forms the envelope or a sleeve surrounding it. The two layers of luminescent glass may be the same such as uranium glass or glass having different luminescent properties may be used.
Patent GB-785585-A (GB)
Title: Improvements in soil excavating apparatus
Inventor: WALKER MATTHEW PATON
IPC: E02F3/627
Filed: 1956-04-16
Abstract: 785,585. Shovelling machines. NEWBRIDGE PLANT SERVICES, Ltd. July 23, 1956 [April 16, 1956], No. 11498/56. Class 68(1) In a shovelling attachment for a tractor, a structure 1, 2, formed by a V frame 1 secured to parallel arms 2, that can be pivotally mounted on trunnions secured to either side of the. tractor and can be rotated about said trunnions by rams 4, pivotally connected between the arms 2 and brackets 5 securable to the tractor adjacent the trunnions 3 rotatably supports at the apex of the V frame 1 the king pin 7 of a shovelling unit 7, 10, 14, 20, 22, 23, 25. The king post 7 is rotatably supported in bearings in a bracket 6 forming part of the frame 1 and in an arm 8 secured to a frame 9 rigid with the frame 1. A ram 17 pivotally connected between the frame. 1 and a quadrant 18 causes rotation of the king post 7, the angular extent of such rotation being determined by which of the holes 19 in the quadrant the pivotal connection between the ram 17 and the quadrant is associated with. The boom 10 formed by a pair of interconnected parallel, triangular plates is pivotally mounted on lugs 12 of the king post 7 and is actuated by a ram 14 pivotally connected to a recessed lug 15 on the king post.
Patent GB-937668-A (GB)
Title: Improvements in or relating to loom shuttles
Inventor: TOUGH WILLIAM HAMISH
IPC: D03J5/24
Filed: 1960-04-01
Abstract: 937,668. Shuttles. GATESIDE MILLS CO. Ltd. March 14, 1961 [April 1, 1960], No. 11516/60. Class 142 (2). A self - threading jute shuttle has its weft discharge and tensioning device in its underside. At the first pick the weft lies along a side groove A and passes over a pin L and is drawn under a plate B and the tongue E of a plate C. At the second pick the weft is drawn down a groove K and under the plate C until it rests against a pin J and is drawn under the pin L. Continued movement of the weft down the groove K takes it under the shuttle until it passes the tongue O of a plate R and leaves the underside of the shuttle from a space W. Continued picking of the shuttle places the weft alternately on pins T, T 1  and between a spring-loaded plate S and the plate R. Any knots in the weft will cause it to ride in the space W.
Patent GB-267742-A (GB)
Title: Improvements in and relating to apparatus for transmitting or reproducing sound
IPC: H04R11/00
Filed: 1926-05-01
Abstract: 267,742. Brown, S. G., and Brown, Ltd., S. G. May 1, 1926. Loud-speakers; magnetic instruments. - Relates to sound-transmitting or reproducing apparatus, such as loud-speakers, microphone relays &c. of the kind having a horseshoe magnet which is deformable for adjusting the air gap between the armature and pole-pieces and consists in a construction in which the magnet is rigidly fixed at its ends about which it is bent by suitable mechanical means in order to adjust the air gap. In the construction of loud-speaker shown, the magnet is formed of two superimposed horseshoe magnets a, b separated bv distance-pieces e, f and secured together by bolts c, d. The magnet b has its ends g extended beyond those of the magnet a, the ends g being secured by setscrews h to bosses k on the cast aluminium base A. Pole-pieces l are held between the magnets by the bolts d, whilst the reed n is mounted on a non-magnetic bridge member m secured to the bosses k. A screw p mounted in the base A bears on the top of an extension of the distancepiece f, another screw q, surrounded by a spring r, passing through a hole in the extension and screwing into the base A. By rotating the screw p the magnet is bent about its fixed ends g toadjust the air gap between the reed n and polepieces l.
Patent GB-106376-A (GB)
Title: Improvements relating to Open Hearth Regenerative Furnaces.
IPC: F28D17/00
Filed: 1916-08-17
Abstract: 106,376. Clyde Furnace Co., and Dixon, W. Aug. 17, 1916. Repairs, facilitating.- The walls and other parts of open-hearth furnaces are repaired by securing a retaining-plate c in front of the burnt out cavity, and filling in behind it refractory material in a plastic or semi-liquid state. The plate may be of metal, fire-clay, or other refractory material, which will not burn away before the filling has set. When a repair is to be effected between the doors, the plate is secured in position by bolts d passing through the door opening and strips d'. A bent portion c<1> of the plate facilitates the filling in of the plastic material.
Patent GB-386949-A (GB)
Title: Improvements in hydraulic valve operating mechanism for internal combustion engines
IPC: F01L1/25
Filed: 1931-04-20
Abstract: 386,949. Valve gear. BUGATTI, E., Molsheim, Bas-Rhin, France. April 20, 1931, No. 11646. Convention date, April 19, 1930. Void [Published under Sect. 91 of the Acts]- [Class 7 (vi).] In valve gear having a cushion of liquid interposed between the cam, rocker, or other actuating- member and the valve stem, the liquid is fed by ports 6 to the space between a pair of pistons 2, 3 working in a cylinder 1, the piston 2 contacting with the cam &c. 8, and the piston 3 with the valve stem 4. When the piston 2 has closed the ports 6, the piston 3 is operated through the liquid cushion. The stroke of the piston 3 thus obtained may be varied by adjusting the cylinder 1 by means of a screwed portion 1b A spring 7 is arranged between the pistons, and a stop 10 comes into action if the liquid supply should fail.
Patent GB-380024-A (GB)
Title: Improvements in thermionic amplifiers
IPC: H03F3/52
Filed: 1932-04-22
Abstract: 380,024. Valve amplifying circuits. REVELATION PATENTS HOLDING CO., Du Pont Building, Wilmington, Delaware, U.S.A. April 22, 1932, No. 11653. Convention date, April 28, 1931. [Class 40 (v).] The grid 5 of an amplifying valve 2 is connected to the cathode 3 of an auxiliary valve 1, in the way described in Specification 362,504, and means are provided to limit the normal anode current through the valve 2. For this purpose the grid 5 is kept at an average zero potential by connecting it to earth through a high-reactance choke 21 of low resistance. When the valve 1 is directly heated, another choke 22 is connected in the other lead to the filament 3, but in the case of an indirectly heated valve a single choke suffices, Fig. 4 (not shown). The amplifier may be used for a gramophone, Fig. 5 (not shown). Specification 363,430 is also referred to.
Patent GB-449460-A (GB)
Title: The universal journalling of rotary elements
IPC: F16C35/06
Filed: 1935-01-10
Abstract: 449,460. Ball bearings. ARMSTRONG SIDDELEY MOTORS, Ltd., and VIALE, S. M., Park Side, Coventry. Jan. 10, 1935, No.11698/36. Divided out of 447,786. [Class 12 (i)] The ball bearing 30 is held between two annuli 29 in a spherical seating 21. The annuli are inserted in succession through the diametrical slots 31 and are then displaced laterally to allow the bearing to be inserted. The whole is then turned through a right angle into its final position.
Patent GB-545497-A (GB)
Title: Machine for washing and peeling potatoes, turnips and other produce
IPC: A23N7/02
Filed: 1940-07-17
Abstract: 545,497. Scraping and washing vegetables. REIST, H., and SURBECK, E., (trading as REIST & SURBECK MAACHINENFABRIK). July 17, 1940, No. 11813. Convention date, July 17, 1939. [Class 28 (i)] The rotary body 8 which moves the vegetables over the roughened inner face 5 of the machine casing 4 is provided along its length with roughened ribs 9, 10 which project outwards to different extents and has a roughened bottom flange 11. The body 8 is driven either by an electric motor, in which case the feed to water sprayers 16 is independent of the motor, or by a water motor 6 driven by water from a pipe 14, in which case the sprayers are fed by the discharge pipe 15 of the motor. Water escapes from the casing through apertures 12 therein into a pipe 18. The Specification as open to inspection under Sect. 91 states that the ribs 9, 10 may be of equal size. This subject-matter does not appear in the Specification as accepted.
Patent GB-129813-A (GB)
Title: A New or Improved Method of Manufacturing Tires, Tire Covers and other Shaped Articles.
Inventor: LEHMANN FRANZ
IPC: B29D30/38
Filed: 1918-07-19
Abstract: 129,813. Lehmann, F. July 19, 1918. Sewing - machines; shaping tyre covers and the like.-Shaped articles, such as tyre covers, life-belts, &c., are formed from flat bands of fabric by bringing nearer to each other the transverse threads along the longitudinal edges and -securing them in their new positions by lock-stitch seams etc.; by a similar action on threads approximately normal to and around the edge or at other parts of a piece of fabric, an article such as the hollow half of a ball may be formed. Apparatus for this purpose applied to a sewing-machine comprises a curved pin 7, Fig. 1, rigidly secured to a cross-bar 4, and a similar pin 8 mounted in a holder 22, which is pivoted at 9 to the bar 4 and is provided with an extention 10 with a slot 11 engaging a pin 12 screwed into a selected hole in a lever 13. This lever and a second lever 16 are secured to a shaft 14 and pin 25 on the lever 16 engages a cam-groove 26 in a disk 17 secured to the shaft 1 that actuates the needle bar 2 and foot 3 in a well known manner. The bar 4 is free to slide on the needle bar 2, and the bar of the foot 3 is fixed to a rod 5 slidable in a bearing 20 and normally held raised by a spring 6 between the bearing 20 and a collar 21 on the rod. The fabric A is fed in the known way, and the rod 6 is depressed by a device such as a cam on the main shaft to cause the pins 7, 8 to enter the fabric. The cam and lever mechanism then acts to move the pin 8 nearer to the pin 7, thus pressing the transverse threads closer together. The needle then descends and a stitch is formed to secure the threads in their new positions. Both edges of the band of fabric are thus treated and a ring of curved cross-section is formed. Two or more seams may be formed at each edge, the extent of movement of the pin 5 being adjusted to suit the desired shape by placing the pin 12 in the proper hole in the lever 13. Any part of a piece of fabric where shortening is desired may be thus treated so that articles of shapes shown in Figs. 4, 5, and 6 may be formed. To assist the seam in securing the threads, an inextensible strip, cord, &c. may be secured along the edge.