baber/WOPTO huggingface dataset:
Patent GB-155197-A (GB)
Title: Improvements in ball joints for rear axle bridges of power driven vehicles and process for making same
IPC: B60B35/16
Filed: 1920-12-08
Abstract: 155,197. Argus Motoren-Ges. Sept. 10, 1919, [Convention date]. Shafts.-Each of the halves of a ball joint at the front end of a T-shaped rear axle casing of power vehicles, which is made in one piece with a half of the rear axle casing, is united with a thickening layer of hard steel, bronze, &c. by welding, soldering, riveting, &c. The thickening pieces d, d<1> are secured to the outside of the ball halves c, c<1>. The two halves a, a<1> of the casing and the ball joint mav be first formed by pressing and the thickening pieces formed separately. The thickening pieces are then united with the ball halves by welding, soldering, riveting, &c., and the halves of the casing united. The welding seams f, Fig. 3, of the ball halves may be made deep enough and preferably of triangular section to permit both the inner and outer ball halves to be united in one operation. In another construction, the axle casing halves may be first united and the thickening pieces joined to the ball halves afterwards, or the thickening pieces may be united with the ball halves before pressing and the casing halves with the strengthening-pieces then pressed and welded.
Patent GB-429943-A (GB)
Title: Improved means for protecting the heads of tools subjected in use to impact
IPC: B25D3/00
Filed: 1933-12-09
Abstract: 429,943. Chisels. FOGDEN, F. T., 6, Palmeira Mansions, Westcliff-on-Sea. Dec. 9, 1933, No. 34702. [Class 61 (ii)] The metallic end of a cold chisel or other impact tool 1 is fitted with a protective cap 4 which may have a tapering recess 3 to receive the taper end of the tool, or the recess may be screw threaded to receive the tool. The cap may have an enlarged rim 11 to protect the user's hand.
Patent GB-521960-A (GB)
Title: An improved buoyancy device
IPC: B63C9/105
Filed: 1938-11-29
Abstract: 521,960. Buoyant body attachments. ARDERN, A. T. Nov. 29, 1938, No. 34730. Convention date, March 14. [Class 77] A flexible buoyant tubular harness is distributed substantially the same at the back as at the front of the wearer's body, the tubular parts being held together at the front, by devices 3, 4 at the back and at the hips. As shown, the harness is made in two parts 1, 2 one for each half of the body. Zip or press fasteners or lacing may be used as connecting devices. In one form, the front and rear halves of each part 1, 2 are connected at the hips by flexible tubes embracing the two halves. The parts 1, 2 may be inflatable tubes each with its ends joined by straps 9, 10 passing around the legs. The parts 5, 6 of the tubes may be of larger diameter than the remainder.
Patent GB-498714-A (GB)
Title: Improvements in and relating to permanent magnets
IPC: H01F7/02
Filed: 1937-12-15
Abstract: The parts of a permanent magnet are united by spraying a coating of a light metal alloy there around.  A suitable alloy is an aluminium alloy containing 20 per cent of tin or zinc.
Patent GB-521826-A (GB)
Title: Improvements in or relating to the laying of reinforced concrete
IPC: E04C5/18
Filed: 1938-11-29
Abstract: 521,826. Reinforced concrete. WALKER, J. H. Nov. 29, 1938, No. 34762. [Class 20 (iv)] Reinforcement for reinforced concrete is held in position by spaced supports supported from above the reinforcement, each support being provided with spaced depending elements to engage beneath the reinforcement and movable with the support to release the reinforcement. In one form, Fig. 2, the supporting members f are spaced apart by rods p and each member carries a number of hooked shaped elements h i adapted to be locked to the member by wedges g, after the hooks have been inserted beneath the reinforcing bars d. Two layers of reinforcing bars may be supported at each position by either a double hook, or by two single hooks of different lengths. The ends of the members are supported on battens which are removed after the casting and before the setting of the concrete, so that the hooks are lowered either by longitudinal, lateral or rocking movement of the support, removed with the support from the casting position. The hooked shaped elements may be provided with hooked shaped upper extremities to embrace the supporting members to which they are locked by wedges. The hooks 11 on the depending elements 12 may be adjustably bolted to them as shown in Fig. 8. For long transverse supports intermediate standards x, Fig. 4, with bifurcated legs to straddle the reinforcement may be provided and the support provided with splines to engage slots z in the standards so that the support may be slid longitudinally to release it from the standards. The ends of the supports may. be of cam shape, so that when rotated, their axes are lowered simultaneously with the withdrawal of the hooks from the reinforcement.
Patent GB-207397-A (GB)
Title: Improvements in looper mechanisms for sewing machines
IPC: D05B57/02
Filed: 1922-12-21
Abstract: 207,397. Thompson, W. P., (Union Special Machine Co.). Dec. 21, 1922. Chain-stitching.-In a looper mechanism specially adapted for use in machines having a work-arm projecting from a vertical frame member which projects from a horizontal member the looper is given a dwell at the forward end of its loop-engaging stroke and while it is being moved laterally to avoid the needle by mechanism located in the vertical member. The threaded looper 9 is mounted on a shaft 11 to which loop-engaging oscillations are communicated by mechanism comprising an arm fixed to the shaft carrying a ball-stud 31, a link 30 engaging the ball-stud, a rock-lever 35, 37 pivoted to the link 30 and to a link 40, and a. lever 41 pivoted to the link 40 and pivotally-connected at 43 to an eccentric-rod 44 driven from the main shaft 3. The endwise needle-avoiding movements of the shaft 11 are effected through a rocklever 46 one arm of which is pivoted to a collar 50 loose on the shaft between fixed collars 58, 59, the other arm being slotted to receive an adjustable pivot connection with an eccentric rod 54 driven from the main shaft. The mechanism is sc arranged that the toggle formed by the link 40 and lever 41 is straightened at the time when the looper is in its most advanced position thus producing a dwell. Feed by dogs. - In the machine shown the looper mechanism is associated with a differential feed mechanism comprising a feed bar 14 carrying a main feed dog 5. Feeding movements of the bar is effected by an eccentric rod 24, a lever 23. and adjustable link 20 and vertical movement by an eccentric rod 18, lever 16 and link 15. Slidably mounted in the bar 14 is an auxiliary feed-bar 25 carrying the dog 6 and moved differentially with respect to the, bar 14 by a link 29 pivoted to the bar 14 and a lever 26 fulcrumed on a stud 28 pivoted to the link 29 and to the auxiliary feed-bar.
Patent GB-343508-A (GB)
Title: A cobalt high speed tool steel
Filed: 1929-11-14
Abstract: High-speed steels contain cobalt, for example 3,45-18,91 per cent, and are free or substantially free from chromium. Specified amounts of one or more of the metals tungsten, vanadium, molybdenum, and tantalum may also be present.  The carbon content may be 0,88-1,21 per cent.  Specification 303,751, [Class 82 (i), Metals, Extracting &c.], is referred to.
Patent GB-791380-A (GB)
Title: Improvements relating to aluminium foil for electrolytic condensers
IPC: C22C21/00
Filed: 1956-11-14
Abstract: An aluminium foil for electrolytic condensers is made from p aluminium of at least 99.98 per cent purity which contains, in addition to the usual impurities such as iron and silicon, 0.005-0.05 per cent boron, 0.001-0.005 per cent zinc and 0.0003-0.002 per cent magnesium, the proportion of zinc to magnesium being greater than 2. The iron content may amount to 0.006 per cent.  Additions of 0.001-0.1 per cent of lead, tin, bismuth, antimony, thallium, titanium, nickel, palladium, platinum and zirconium are referred to as being known.  Specification 709,537 [Group XVI] is referred to.
Patent GB-866413-A (GB)
Title: Preparation of suspensions of water-soluble solids in oleaginous media
IPC: C09K23/00
Filed: 1958-10-31
Abstract: A method of preparing a suspension of a water-soluble solid in an oily medium is to form a water-in-oil emulsion of the aqueous solution of the solid with oleaginous liquid using montan wax as an emulsifying agent and thereafter dehydrating the emulsion.  The oleaginous liquid may be a mineral oil (e.g. a lubricating oil, a residue, a fuel oil or kerosine), castor oil, a diester, a polyglycol, a polyether or a silicon-containing synthetic oil.  A dispersion of the solid in lubricating oil may be thickened to form a lubricating grease or may be mixed with a grease.  Solids which are suspended in the media include alakli metal and ammonium nitrites, carbonates, bicarbonates, sulphites, borates, chlorates, perchlorates, hypochlorites, silicates, phosphates, salicylates, citrates, tannates, lactates, tartrates, oxalates, phthalates, acetates, iodates, arsenites, chromates, molybdates, and tungstates; amine nitrites, phosphates and iodates; hydroxy fatty acids, polycarboxylic acids, hydroxy polycarboxylic acids, sodium benzoate, amides, and amino acids.  In an example, a suspension of sodium nitrite in lubricating oil is prepared by the method of the invention, and this suspension is incorporated in a lubricating grease prepared from mineral lubricating oil, lithium hydroxide and hydrogenated castor oil.
Patent GB-1024519-A (GB)
Title: Improvements in or relating to a method of and machines for continuous internal broaching
IPC: B23D37/04
Filed: 1964-08-27
Abstract: 1,024,519. Broaching. B.S.A. TOOLS Ltd. Aug. 27, 1964 [Aug. 30, 1963], No. 35124/64. Headings B3B and B3L. A method of continuous internal broaching consists in passing the work W over a broach B whilst holding the broach alternately by pairs of supports 21, 22. The workpieces W are carried in holders 16 traversed along upper and lower guides 17, 18 by chains 15. They may merely rest in the holders 16 so that they drop out after being machined, or may be clamped automatically. Each work-holder carries two cams 40, Fig. 5 (not shown), which, in the course of their travel, engage cam bars 51 to move them outwardly. The bars 51 slide cams 52 laterally to cause cam surfaces 530 thereon to move broach holding bars 22 away from clamping recesses 25 in the broach B. In Fig. 5, the work has passed over the end of the broach, the clamping bars 21 have been retracted and reset and the holder is just about to pass the second set of clamping bars 22. As the holder passes the bars 22, plates 41 engage further cam bars 54 which have cam surfaces 541 acting to move the cams 52 back to the positions in which they hold the clamping bars 22 in the groove 25, the inner positions of the clamping bars 22 being determined by nuts 47 on rods 48. A final clamping blow is given to the bars 54 when the plates 41, having been pivoted back against springs 43, are suddenly released as the portions 410 slide off the surfaces 542 on the bars. Clamping bars 23 and 24 are operated in a similar fashion but serve only to support the broach and not to resist axial movement as do the forward groove-engaging bars. In a modification, the bars 60, 61, Fig. 12 (not shown) at the trailing end (or leading end or both ends), of the bar are chamfered to provide an axial tensioning force on the broach as they engage grooves 64. In a further modification, the rear clamping bars 70, 71, Fig. 18 (not shown), are similar to the bars 20, 21 of Fig. 1 (not shown, but are carried on a slide 72 urged rearwardly by fluid-pressure means 74. Alternatively, each pair of bars 70, 71 may be mounted on a slide. In a final modification, the bars 21 etc., Fig. 24 (not shown), are moved by fluidpressure means 81 controlled by a cam 83 on the work-holder 86, which cam engages valveoperating rods 85.
Patent GB-402254-A (GB)
Title: A process for the production of alloys
IPC: C22C1/03
Filed: 1932-12-12
Abstract: In a modification of the process for making alloys described in the parent Specification the reduction of the oxides is effected in an atmosphere comprising hydrogen admixed with hydrocarbon gases in such quantities that practically no carbon is present in the finished alloys.  Hydrogen admixed with benzol vapour, benzine vapour methane, coke oven gas, illuminating gas, &c., or mixtures of industrial gases such as coke oven gas and blast furnace gas, or water gas and illuminating gas, may be used for the reduction.
Patent GB-986109-A (GB)
Title: Improvements in or relating to liquid level measuring devices
IPC: G01F23/288
Filed: 1960-10-14
Abstract: 986,109. Liquid level indicators. BALDWIN INSTRUMENT CO. Ltd., S. J. WRIGHT, and P. W. BOYLE. Jan. 15, 1962 [Oct. 14, 1960], No. 35245/60. Heading G1A. [Also in Division G3] A liquid level measuring device comprises a carrier 13 supporting a radiation detector 14 such as an ionisation chamber, and a holder 15 containing a source of beta rays or bremsstralung, mounted to move vertically with the detector and holder 15 on opposite sides of a column 16 of liquid 11 indicating the height of the liquid in a tank 12. The carrier 13 is moved vertically by a motor 24 driving a lead screw 18 and a circuit, Figs. 3 and 4 (not shown), actuated by the variation in the detected radiation, controls the motor such that the carrier follows changes in the level of the liquid. The circuit may include a digitising unit operated upon movement of the carrier to give a digital indication of the measured level and the unit may be arranged to operate an integrating counter which indicates the influx or efflux of liquid from the tank. The circuit in response to a signal from the device may actuate a control mechanism including settable switch units (Fig. 4 not shown) by which the liquid may be adjusted to a desired level or the tank may dispense a desired efflux of liquid, the control mechanism actuating inlet or outlet valves in the tank.
Patent GB-1091669-A (GB)
Title: Improvements in and relating to sutures
IPC: A61B17/06
Filed: 1966-08-08
Abstract: Suture material comprising a fibrous strand of silk impregnated with a beta-particle emitting substance said to aid wound healing may be obtained by soaking the strand in a radioactive solution of sodium phosphate.  The strand may be soaked in the solution in a container for a specified time and then removed and dried, or is left soaking in the container until all of the solution has evaporated.  The impregnated strand may be washed in water.ALSO:A surgical suture material, comprising a fibrous strand of silk, is impregnated with a pure beta-particle-emitting substance, such as radio-active sodium phosphate, which is said to provide a negative charge in the region of a sutured wound and prevent thrombosis.  The beta-particle-emitting substance may have a half-life similar to the normal period required for the suture to disintegrate and the effective active life of the substance is similar to the normal time in which the sutured wound heals. Examples of suitable methods of impregnating the strands are given.
Patent GB-1382625-A (GB)
Title: Fire retardant thermoplastic polymer articles characterized by low smoke density
IPC: C08F30/02
Filed: 1972-07-28
Abstract: 1382625 Fire-resistant polymers STAUFFER CHEMICAL CO 28 July 1972 35383/72 Heading C3P Fire-resistant polymers are obtained by copolymerizing (a) a mixture of an ethylenically unsaturated halogen-containing monomer and 2À5-90% by weight of the mixture of where each R is a chloro-, bromo, or fluorosubstituted alkyl group and may be the same or different or conjoint or (b) a mixture of a major proportion of (a) with a minor proportion of another monomer. Such copolymers may be blended with each other and/or with a polymer of a halogen-containing monomer. Examples relate to a copolymer of vinyl chloride and bis(beta-chloroethyl)vinyl phosphonate.
Patent GB-619269-A (GB)
Title: Improvements in or relating to electric fires
IPC: F24C7/06
Filed: 1946-11-29
Abstract: 619,269. Electric fires. M.P. STAINLESS PRODUCTS, Ltd., and McLEMAN, W. Nov. 29, 1946, No. 35408. [Class 39 (iii)] An electric fire comprises a panel having a substantially rectangular opening 12 therein in which is mounted an electric heating unit, each edge of the opening being formed by a separate member 10, 14, 15 which members are assembled together. The vertical members 10 have inner and outer flanges 11 and 13 respectively, the inner ones having holes 17 through which are passed bolts to secure the members 10 to the members 14 and 15, which are similarly provided with flanges 15a. The flanges are cut away adjacent the opening 12. Brackets 19 and 22 respectively enable a canopy 18 and a base 20 to be fitted to the panel. The heating unit is attached to the panel by passing the ends of elongated U-shaped guards for the heating elements through holes 27 in the members 10, the ends of the guards being screw-threaded and carrying securing nuts. The heating unit may be as described in Specification 619,270. If desired one of the members 10, 14, or 15 may be dispensed with, the opening 12 being then formed in one edge of the panel. The Provisional Specification refers to Specification 619,271.
Patent GB-487796-A (GB)
Title: Improvements in pipe couplings
IPC: F16L19/03
Filed: 1936-12-24
Abstract: 487,796. Pipe joints. MOTT, A. C. Dec. 24, 1936, No. 35440. [Class 99 (i)] Sleeves 1 and 2, attached to opposed pipe ends 8 and 9, are forced together by a coupling nut 3 so that an annular V-shaped ridge 12 on one sleeve enters a recess 10 in the other sleeve. The groove is so formed as to produce a sharp edge at the inside of the sleeve in which it is formed.
Patent GB-1109896-A (GB)
Title: Improvements in, or relating to a circuit arrangement for evaluating in electrical terms, a mathematical function
Inventor: HERBERT BRIAN KENNETH
IPC: G06G7/163
Filed: 1965-08-19
Abstract: 1,109,896. Multiplying, dividing circuitsÀ MULLARD Ltd. 27 July, 1966 [19 Aug., 1965], No. 35626/65. Heading G4G. An analogue circuit for producing an output voltage V a  proportional to V n .V m /V d  , where V n , V m  and V d  are three separate inputs, makes use of a single potential divider to which two of the inputs V d , V m  are either supplied simultaneously, V d  in low frequency or D.C. form and V m  in high frequency form, or are supplied alternately by controlling gates. In a first embodiment, as shown, the two inputs are applied simultaneously via terminals 11, 12 to a potential divider 10 which carries a slider 14 movable by a motor 25 controlled by a differential amplifier 22. The two components of that portion of the inputs which is tapped off at slider 14, are separated by low and high pass filters 20, 17, the portion of the component V d  being applied to the amplifier 22 or threshold device where it is compared with the third input V n , where upon the motor 25 is activated to move the slider until the two compared voltages are equal. The output Va of filter 17, i.e. the portion of the high frequency component, will then represent V n .V m /V d  since, if # is the proportion of voltage tapped off the divider, then and In a second embodiment, Fig. 3 (not shown), the potential divider comprises a resistor and a photo-resistor, the resistance of the latter being continuously varied by varying the intensity of a light (29) until the equality condition is attained in the amplifier (or threshold device such as a Zener diode) a signal being then issued to a gate (28) controlling the output of the high pass filter. In a third embodiment, Fig. 4 (not shown), the potential divider comprises a thermistor (34) and a resistor, the equality condition being attained by varying the resistance of the former by a heating element (36). In this embodiment, gates (32),(33), (38), (37) allow the inputs V m , V d  to be applied separately. In a fourth embodiment, Fig. 5 (not shown), the potential divider may be formed from two field effect transistors (39), (40) while in a fifth embodiment (Fig. 6, not shown) each arm of the divider is formed from a photo-resistor, circuits being included to maintain a constant impedance path between the input terminals 11, 12 and earth.
Patent GB-1279008-A (GB)
Title: Layered ion exchange process
IPC: B01J49/00
Filed: 1969-07-16
Abstract: 1279008 Regeneration of ion exchange resins ILLINOIS WATER TREATMENT CO 16 July 1969 [2 Aug 1968] 35743/69 Heading B1J In the removal of different ions having the same ionic polarity from an aqueous solution by passing the solution in succession through two beds of ion exchange resin disposed in an upright tank and stratified therein one above the other below an upper free-board space, the type of resin constituting one bed differing from the type of resin constituting the other bed, the resin of the beds is regenerated by a process which comprises the sequential steps of (a) discontinuing passage of solution through the beds, (b) introducing water into the tank at a level between the upper bed and the lower bed, the water flowing upwardly through the upper bed to expand the upper bed into the upper free-board space without disturbing the lower bed and to wash from the upper bed and the tank matter accumulated in the upper bed during passage therethrough of the aqueous solution, (c) discontinuing passage of water to allow the resin which originally formed the upper bed to settle and reform the upper bed and (d) introducing into the tank at a level below the lower bed a concentrated solution of a regenerant suitable for regenerating the resin of both of the beds, the regenerant solution flowing upwardly in succession through both of the beds and introducing water into the tank at a level between the upper bed and the lower bed thereby to dilute the regenerant solution flowing into and upwardly through the upper bed. The beds may be in contact with each other whence the level between the upper bed and the lower bed is defined by the interface between the beds; alternatively, the beds may be separated one from the other. As disclosed with reference to Figs. 1 to 4 (not shown), an aqueous solution, for example "raw" water, passes in succession downwardly through a first tank containing an upper bed of weekly acidic cation exchange resin in contact with a lower bed of strongly acidic cation exchange resin and downwardly through a second tank containing an upper bed of weekly basic anion exchange resin in contact with a lower bed of strongly basic anion exchange resin, backwashing of only the upper bed of resin and dilution of regenerant solution passing into the upper bed of resin being effected in respect of each of the tanks in the manner described; as an alternative to diluting the regenerant solution passing into the upper bed of resin in the tank containing anion exchange resins, any desired amount of such regenerant solution may be removed from the tank after passing through the lower bed of resin and without contacting the upper bed of resin. During passage of regenerant solution through either or both of the tanks, the beds of resin may be held in a compacted state either by passing water downwardly through the free-board space above the upper bed of resin or by maintaining the free-board space filled with air under pressure.