baber/WOPTO huggingface dataset:
Patent GB-813318-A (GB)
Title: Improvements in thread cutting screws
Inventor: POUPITCH OUGLJESA JULES
IPC: F16B25/00
Filed: 1956-01-20
Abstract: 813,318. Self-tapping screws. ILLINOIS TOOL WORKS. Jan. 20, 1956, No. 2024/56. Class 83 (3). A self-tapping screw comprises a head 12, Fig. 1, and a shank 14, divided into a threaded holding section 16 and an entering section 20. The latter is provided with a recess 26, which through the end and side of the entering section. The recess is formed by a part-cylindrical wall 32 and a bottom 28, Fig. 4, and its axis is transverse to that of the shank and offset therefrom. The crests of the reduced teeth in the entering section may be serrated at 24, Fig. 1. An alternative form of recess, Fig. 5, is produced by an end mill, and has a straight entering portion, a cylindrical portion 30 and a flat bottom 42.
Patent GB-726976-A (GB)
Title: Improvements in or relating to the endwise locating of rolling bearings
IPC: F16C35/063
Filed: 1953-01-23
Abstract: 726,976. Assembling force fits. AKTIEBOLAGET SVENSKA KULLAGERFABRIKEN. Jan. 23, 1953 [Jan: 25, 1952], No. 2061/53. Class 83 (4). The inner face of a roller bearing is located endwise on a shaft by means of a shrink-ring which is provided with a passage through which a medium, e.g. oil, can be introduced under pressure to the inter-engaging surfaces of the shrink-ring and the shaft to facilitate mounting and dismounting the shrink-ring. In one embodiment (Fig. 1) a shrink-ring 2, provided with a passage 3 for admitting pressure fluid, is mounted on an axle 1 and between the inner race ring 4 of a roller bearing is a loose flange 5 forming part of the outer race ring. The shrink-ring may be annularly extended to dispense with the loose flange and it may be provided with an extension 5a (Fig. 3) projecting over the end of the inner race ring 4a, said extension acting as a guide flange for the rollers. The passage for fluid pressure may be provided in the shaft instead of the shrink-ring. In another embodiment the shrink-ring 2c (Fig. 5) may extend around the end of the shaft to form a pressure chamber 6 having an opening 7 for introducing fluid pressure for removing the shrink-ring.
Patent GB-588062-A (GB)
Title: Improvements in heat exchangers
IPC: F28D5/00
Filed: 1945-01-26
Abstract: 588,062. Air and gas cooling installations; heat - exchangers. GRISCOM - RUSSELL CO. Jan. 26, 1945, No. 2127. Convention date, Jan. 27, 1944. [Classes 64 (i) and 64 (iii)] A heat-exchanger for cooling fluids, e.g., oil or vapours in an oil refinery, comprises a metal casing 1 having at its central portion a bank of finned tubes 10, each bank consisting of a number of straight tubes whose ends are connected by U-bends 11, the fluid to be cooled passing from one header 9 to the other, through the tubes. Cooling air enters by the ducts 6, drawn in by the fans 2, and is cooled and washed by being sprayed with water from the jets 6<1>, behind which are baffles 7 to prevent water droplets entrapped in the air from reaching the tubes, to eliminate scaling. The cooled air then passes over the tubes through which the fluid is flowing, before passing out of the apparatus. The tubes in each bank may be staggered to increase the heat-exchange area. In a modification, the apparatus is horizontal instead of vertical, the air entering from the side and the fluid to be cooled from below the apparatus. U.S.A. Specification 1,886,403 is referred to.
Patent GB-1445640-A (GB)
Title: Differential drive and brake assemblies
IPC: F16H48/10
Filed: 1974-01-17
Abstract: 1445640 Motor vehicle brakes GENERAL MOTORS CORP 17 Jan 1974 [29 Jan 1973] 02172/74 Heading B7H [Also in Division F2] A motor vehicle differential gear and brake assembly includes output shafts 42, 52 which are driven by a planet carrier 36 and a sun gear 48 respectively of a differential assembly 12 and are coupled to axle shafts 45, 56 by universal joints, and a brake assembly 14 which comprises two -sets of non-rotating brake discs 98, 100 interleaved with respective sets of rotatable discs 94, 96 mounted on brake hubs 62, 84 coupled to the planet carrier 36 and the output shaft 52, an annular brake piston 114 actuable by fluid pressure for compressing the discs, parking brake pawls 146, 148 engageable with teeth 140, 142 on certain ones 136, 138 of the rotatable discs 94, 96 and a pump 76 driven from the differential assembly for circulating cooling liquid around the brake. The differential assembly 12 is driven by a pinion 20 which receives power from the vehicle engine and meshes with external teeth 24 on a ring gear 22. The carrier 36 carries intermeshed pairs of planet pinions 64, 68 meshing with internal teeth 26 on the ring gear 22 and with the sun gear 48 respectively. The brake piston 114 is located in an annular chamber 112 divided into two sections 116, 118 for connection to separate brake actuating circuits. Piston return springs 128 are fitted about adjuster tubes 126 which are a sliding but restrictive fit in apertures 124 in the piston 120 so that the piston slides on the tubes to assume a new brake release position as the brake plate linings wear. A wear indicator rod (Fig. 4, not shown) may be attached to the piston and project through the brake housing into a transparent cap so that it is visible upon external inspection. The cooling liquid pump 76 comprises an impeller 82 mounted on a shaft 80 carrying a gear 74 driven by gear teeth 72 on the hub 32 of the differential ring gear 22. The parking brake pawls 146, 148 are pivoted on a pin 144 by an actuating cam (Fig. 2, not shown) connected to cable and lever mechanism. In another embcdiment, Fig. 3 (not shown), a parking brake is provided by levers which are actuated by a cable and act on the brake piston through elements extending through the brake housing.
Patent GB-130382-A (GB)
Title: Improved Process for the Production of Picric Acid.
Inventor: HOLLIDAY LIONEL BROOK
IPC: C07C205/24
Filed: 1918-02-07
Abstract: 130,382. Holliday, L. B., (trading as Holliday & Co., L. B.), and Clayton, A. Feb. 7, 1918. Picric acid is prepared by treating sulphonated phenol with a mixture of strong nitric acid and strong sulphuric acid; the mixed acid is added in two portions, the first (say, one-fourth of the whole) at or below 45‹ C., and after stirring for about an hour, the remainder, heated to or above 70‹ C., is added and the mixture heated to complete the reaction.
Patent GB-1115441-A (GB)
Title: Improvements relating to the production of metal and alloy castings
Inventor: ROSE KENNETH
IPC: B22C1/18
Filed: 1965-01-19
Abstract: Moulds or cores for use in metal casting are formed from a composition containing calcium phosphate, the term "calcium phosphate" being used in the Specification to mean tri-calcium diorthophosphate, (Ca3(Po4)2) with or without other calcium phosphate materials. The proportion of calcium phosphate in the composition may vary from 100% to 20% by weight and hence up to 80% of the composition may comprise ingredients such as magnesium oxide, alumina, zircon, silica, zirconia, mullite molochite and sillimanite. Other substances useful as temporary binders, such as paraffin wax dissolved in trichlorethylene and aqueous ammonium alginate may be incorporated, The calcium phosphate may be chemically precipitated phosphate and/or bone ash phosphate and/or rock phosphate.  The moulding composition may also be prepared with the use of sodium silicate, aluminium orthophosphate, ethyl silicate, a resin binder or other airdrying or baking binder.  An example of the preparation of the moulding compositions comprises dry mixing 200 grams of chemically precipitated calcium phosphate of average particle size 0.5 microns with 800 grams of bone ash of average particle size 11.3 microns. 382 gms. of this powdered mixture was added to a mixture of 98 ml. of ethyl silicate, 2 ml. of piperidine, 17 ml. of isopropyl alcohol and 3 ml. of distilled water.  The paste so formed was thoroughly mixed and rammed into a cavity to form a core in a mould.ALSO:In Example IV, a mould or core composition is prepared by dry mixing 200 g. of precipitated calcium phosphate of particle size 0.5 microns with 800 g. of bone ash of particle size 11.3 microns, plasticizing with water and ammonium alginate and extruding rods of 0.5 inch diameter and 10 inches long.  The rods are air-dried and raised to 1250 DEG  C. at 70 DEG  C. per hour, kept at 1250 DEG  C. for two hours and then cooled.  The rods may be used as preformed cores in shell castings.
Patent GB-103868-A (GB)
Title: Improvements in or relating to Wheel-rims for Pneumatic Tyres.
Inventor: SLOPER THOMAS
IPC: B60B21/10
Filed: 1916-02-16
Abstract: 103,868. Sloper, T. Feb. 16, 1916. Tyre attachments to rims. - Wheel rims, particularly for use on aircraft, comprising side troughs A, A<1> to receive the beaded edges C<1> ol the pneumatic tyre, are braced bv tie-rods D passed through the troughs and preferably close under the tyre. The rods D may be formed from headed pins welded together at D<2>, or the troughs A' may be formed separately from, and afterwards welded to, the part B of the rim.
Patent GB-1122319-A (GB)
Title: Improvements in or relating to data processing systems
IPC: H04Q3/545
Filed: 1967-01-17
Abstract: 1,122,319. Automatic exchange systems. SIEMENS A.G. 17 Jan., 1967 [18 Jan., 1966], No. 2410/67. Heading H4K. In a system which includes common data processing equipment comprising stores and control devices, the stores VSp-1, VSp-2 which contain information relating to desired connections as well as the control devices ZS1, ZS2 are used in pairs and comparison devices VG, VG-Sp serve to detect if either of the pairs is faulty and to reject that one, whereas a so-called state-of-seizure store Bsp is provided to register the condition of the switching equipment &c. together with a substitute store Esp, which in the event of failure of Bsp is enabled to recapture the information stored therein.
Patent GB-571205-A (GB)
Title: Improvements in and relating to rotors for multistage turbo-machines
IPC: F01D5/06
Filed: 1944-02-09
Abstract: 571,205. Rotors for turbines or compressors. AKT.-GES. FUR TECHNISCHE STUDIEN. Feb. 9, 1944, No. 2417. Convention date, Feb. 9, 1943. [Class 110 (iii)] A rotor comprises separate discs 1 having meshing teeth 5 and coupled together by bolts 4. Each pair of adjacent discs may be separated by a ring, and the bolts may extend from one end of the rotor to the other. The shaft ,ends 7, 8, engage the end discs through teeth 5. The discs and spacing rings may be of different materials. The bolts may be under a shrinkage stress to place them under tension. Axial thrust on the rotor will relieve this tension. The discs can be made in halves which engage one another by radial teeth.
Patent GB-932418-A (GB)
Title: Production of a silicon film
IPC: C03C17/22
Filed: 1960-01-22
Abstract: Silicon is deposited as a mirror-like coating on a carrier from dichlorosilane optionally containing hydrogen at a temperature of 600 DEG -900 DEG C., preferably 750 DEG C.  A dichlorosilane-hydrogen mixture containing 1% of dichlorosilane may be used.  The carrier may be quartz, ceramic material, platinum, titanium, silicon, copper, zinc, gold, silver, or tantalum.  The carrier may be the inside walls of the reaction vessel or a plate inserted therein.  The process may be batch-wise or continuous.  In a batchwise process deposition may be repeated several times.  Examples specifying reaction temperatures and contact times are given.ALSO:Silicon is deposited as a mirror-like coating on a carrier from dichlorosilane optionally containing hydrogen at a temperature of 600-900 DEG  C., preferably 750 DEG  C.  A dichlorosilane-hydrogen mixture containing 1% of dichlorosilane may be used.  The carrier may be quartz, ceramic material, platinum, titanium, silicon, copper, zinc, gold, silver, or tantalum.  The carrier may be the inside walls of the reaction vessel or a plate inserted therein. The process may be batch-wise or continuous.  In a batch-wise process deposition may be repeated several times.  Examples specifying reaction temperatures and contact times are given.
Patent GB-808715-A (GB)
Title: Improvements in and relating to bimetallic electric circuit breakers
IPC: H01H61/00
Filed: 1957-01-23
Abstract: 808,715. Thermal switches; control of A.C. motors. ELLENBERGER & POENSGEN G.m.b.H. Jan. 23, 1957 [July 19, 1956], No. 2522/57. Classes 38 (3) and 38 (5). A thermal and electric overload protection switch 1 comprises a bi-metallio strip 4 heated by a heating coil 5 and carrying a contact 9 which co-operates with a contact 10 mounted on a spring 11 provided with an adjustable stop 12. The switch is connected in the circuit to be protected through a terminal strip 8, via a bridge member 7, and a terminal strip 13. Passage of overload current through the heating coil 5 causes upward deflection of the bi-metal 4 and a following upward movement of the spring 11 until movement of the spring is arrested by the stop 12 when the contacts 9, 10 open. The switch may be combined, as shown, with a bimetallic motor-starting switch 2 of the type described in Specification 788,654, [Group XXXVI], the switches being mounted in separate compartments in a housing with the terminals brought out either through the cover 27 (Fig. 7, not shown) or between the cover and base.
Patent GB-329992-A (GB)
Title: Process and apparatus for the separation of solids from gases and liquids
IPC: B01D45/10
Filed: 1929-01-24
Abstract: 329,992. Pollak, J. E., (Arledter, F.), Jan. 24, 1929. Gravity - separation apparatus.-Fluid is admitted to a downwardly-tapering settling vessel through a circumferential inlet or series of inlets at a substantial distance from the bottom, the clear fluid being withdrawn at a higher level. A cone-shaped vessel for the treatment of liquid, shown in Fig. 1, has lower and upper portions 10, 11, separated by a slot 12 and united by a surrounding belt 13 of sheet metal, which forms a supply conduit. The supply pipe or pipes 16', Fig. 2, are preferably arranged to give a peripheral current in the belt 13 so that fluid passing through the slot 12 moves spirally. A series of short slots may replace the continuous slot 12. Clear liquid overflows into an annular trough 14. As shown in Fig. 4, the inlet conduit is formed by a circular pipe 22 with slots 23. In a further modification, the pipe 22 is outside the wall of the vessel and communicates with the interior by means of short pipes with flat-mouthed nozzles. To prevent fluctuations in the supply, an air vessel or other cushioning device may be inserted in the supply pipe; or the upper part of the belt 13, Fig. 1, may contain air for this purpose. When used for the treatment of gases, the tanks are provided with a cover. Reference has been directed by the Comptroller to Specification 2051/94, [Class 46, Filtering &c.].
Patent GB-575516-A (GB)
Title: Improvements relating to hydroplane vessels
IPC: B63B1/20
Filed: 1944-02-11
Abstract: 575,516. Hydroplane vessels. WADDINGTON, E. Feb. 11, 1944, No. 2574. [Classes 113 (ii) and 114] A hydroplane vessel comprises a turned-up stem 5, a turned-down stern 6 and a flat bottom 7 fitted with longitudinal ribs forming one or more channels 1 ... 4 and propelled by gas or air discharged from the stern across substantially the full width GH of the vessel. This discharge takes place in a horizontal or slightly downward direction through one or more nozzles substantially level with the flat bottom. A reservoir of compressed air supplies to the nozzles the excess power required for starting. Near the stern the vessel is provided on each side with a triangular steering plunger PAP or SAP which can be projected upwardly from the top of the vessel simultaneously as a similar plunger PWP or SWP is projected downwardly from underneath the vessel. Specification 523,243 is referred to. Specification 505,540 also is referred to in the Provisional Specification.
Patent GB-375364-A (GB)
Title: Improvements in electric switches with gas blast blow-out
IPC: H01H33/56
Filed: 1931-01-26
Abstract: 375,364. High - tension switches. RUPPEL, S., 8, Palmengartenstrasse, Frankfort-on-Main, Germany. Jan. 26, 1931, No. 2581. Convention date, Jan. 27, 1930. [Class 38 (v).] In a switch employing a gasblast for extinguishing the arc when the inner rod electrode 2 is withdrawn from the outer orifice electrode 1, a constant circulation of air is produced at all times both in the open and closed positions of the switch naturally or by forced draught in order to prevent the deposition of moisture on the electrodes and so to avoid leakage. In the construction shown in the Figure, the switch chamber has side-venting openings 5 with their axes substantially at rightangles to the axis of the switch chamber so that there is a minimum of leakage of the axial gas blast when the switch is being opened. At all times a draught of air is induced through the openings by the flue-like chamber and escapes through the open orifice contact or through small spaces which remain open in the orifice when the switch is closed. In order to prevent any escape of pressure gas, the openings may be fitted internally with flaps 6 normally held open and closed by the blast. A protecting wall 7 may be used to prevent entrance of moisture or the exterior of the openings may connect with a passage 9 to which cleaned and pre-heated air is supplied. In a modification, upwardlyinclined narrowing passages admit air to the chamber, the interior orifices being separated from the gas blast by a protecting sleeve to reduce the loss of pressure gas through the passages. The switch chamber may have double walls.
Patent GB-652106-A (GB)
Title: Improvements in and relating to luminescent materials
IPC: C09K11/58
Filed: 1948-01-28
Abstract: 652,106. Luminescent materials. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 28, 1948, No. 2586. Convention date, Aug. 31, 1945. [Class 39 (i)] An infra-red responsive zinc sulphide phosphor is activated by copper and manganese jointly, in the proportions by weight of 0.12 to 0.2 per cent manganese and 0.0001 to 0.005 per cent copper. The copper may be introduced as a dilute solution of copper chloride or nitrate and the manganese as solid carbonate, nitrate or chloride. Sodium chloride is used as a flux.
Patent GB-196699-A (GB)
Title: Improvements in pillion seats for use with motor cycles
IPC: B62J1/14
Filed: 1922-01-28
Abstract: 196,699. Lowenthal, A. E. Jan. 28, 1922. Seat attachments.-A pillion seat for motorcycles, in which a seat 1 is supported on a lower frame by springs 9 is fitted with a guide-rod 14 sliding in a bridge-piece 10 to prevent lateral movement. The seat frame is constructed of horizontal end strips 2 and vertical side strips 4, and it has a transverse reinforcing-strip 5 attached to each strip 4 and to the middle of the seat. The lower frame comprises horizontal end strips 8 and vertical side strips 7 capable of being attached to a motor-cycle carrier by spring hooks 19 tightened thereto by bolts 17 sliding by squared portions in transverse slots.
Patent GB-925892-A (GB)
Title: A device for doffing bobbins
Inventor: KING JAMES F
IPC: D01H9/10
Filed: 1962-01-24
Abstract: 925,892. Doffing apparatus. BAHNSON CO. Jan. 24, 1962, No. 2614/62. Class 120 (2). Apparatus for doffing bobbins, especially from a row of upright spindles on a spinning frame, comprises a lifter arm which can be brought into engagement with a bobbin and means for developing an upthrust actuable to raise the arm, and means for restraining the upthrust means until a predetermined upthrust is develped. As shown, a carriage 14 is arranged to run on rails along a bank of spindles and doff each spindle in turn by a lifter arm 49. This arm is pivoted at 48 to a bell-crank 42 pivoted at 43 and connected at 44 to the armature of a solenoid 46. The connection at 48 includes a helical torsion spring so that the arm 49 is kept against a roller 51 of a bell-crank 29. One arm 29b of this has a notch 31 engaged by a roller 32 on an arm 34 and carrying at the other side of a pivot 33 a yoke 36 with a rod 37 between its arms, the other arm 29a is connected to a compression-spring 27 the lower part of which encircles the upper part of a rod 18 which carries a forked plate 26 engaging the rod 37. Rod 18 is constrained to move vertically in guides 17-is connected at 19 to one arm of a pivoted lever 20 of which the other arm is connected at 22 to a solenoid 24. As the carriage is moved into position, the arm 49 is in the retracted position shown to avoid the endmember of the frame. Solenoid 46 is now energized to rotate bell-crank 42 against the pull of a spring 47 to project arm 49 forwardly. Solenoid 24 is now energized and lever 20 is rotated against the pull of a spring 25 to raise rod 18 and compress spring 27, the bell-crank 29 being unable to move on account of the catch 31, 32. As rod 18 continues to rise plate 26 finally lifts the upper arm of yoke 36 to rotate arm 33 against the force of spring 39 and release the catch, whereupon the compressed spring 27 is suddenly released to force upwardly arms 29a and 49 and impart a hammer-blow to a butt 13b of a bobbin 13, or to the base of the winding, in which case the end of arm 49 is concave and provided with a nylon tip. In case the bobbin is not separated by the blow of the arm 49, it is arranged that the spring is released before the top of rod 18 engages the arm 29a so that the upward movement of the rod releases the bobbin, after which the spring can operate to actuate the lifter arm. The impact force may be applied directly to the lifter arm, by coupling the latter to a solenoid, the restraining means being a permanent magnet, the force of which is eventually overcome by the force built up by energization of the solenoid coil.
Patent GB-554264-A (GB)
Title: Improvements in guiding devices for use in the manufacture of sheet or strip metal
IPC: B21B39/14
Filed: 1942-02-27
Abstract: 554,264. Rolling sheets. CARNEGIE-ILLINOIS STEEL CORPORATION. Feb. 27, 1942, No. 2622. Convention date, June 26, 1941. [Class 83 (iv)] Guides for use in the manufacture of sheet metal have a resilient section 21 of wear resisting metal held by a flange 22 between flanged blocks 3, 16 connected in spaced relationship by a continuous weld at the end nearest the rolls and by a weld at the bottom only at the other end thus permitting the members 21, 22 to be inserted and removed. The main support 2 has a tongue 4 secured to it and fitting in the T-slot 7 in the lathe 8 ; the parts being clamped in adjusted position by a bolt 11.
Patent GB-325960-A (GB)
Title: Improved construction of stuffing box
IPC: F16J15/54
Filed: 1929-01-26
Abstract: 325,960. Lucas, J. Jan. 26, 1929. Stuffing - boxes substitutes for.-Packing for the spindle of a gas meter, or the like, comprises a spherical or conical collar B on the spindle engaging a corresponding seat in a gland C, screwing into a box D. The box contains a spring E acting on the collar B, with or without the interposition of washers H. The box D may be secured in the division wall F, as shown, or, alternatively, the box may be inverted, with the the gland C secured to the wall F, and the box D screwing on to it.
Patent GB-763713-A (GB)
Title: Food trolleys and the like
IPC: A47B31/00
Filed: 1955-01-31
Abstract: 763,713. Hand trucks. CULLEY, S. and OTELLI, A. Jan. 31, 1955 [Feb. 1, 1954; Nov. 5, 1954; Nov. 5, 1954], No. 2790/55. Class 108(1). A trolley has a central member 3 mounted on a wheeled framework 1 and is provided with a fixed table 5 and with frames 10 secured to sleeves 8 rotatably mounted on the member 3 so that the frames may be moved from a position inside the lateral edges of the framework 1 to an extended position. The propelling handle 20 and the frames may receive removable containers 12. The trays may be circular and rotatable and may form the sides of a displaceable parallelogramic structure.