baber/WOPTO huggingface dataset:
Patent GB-575673-A (GB)
Title: Improvements in and relating to preparation of organosilicon halides
IPC: C07F7/16
Filed: 1943-02-24
Abstract: Organosilicon halides are produced by the process of reacting silicon with a halogenated hydrocarbon characterised in that the reaction is carried out in the presence of an inert gas.  The reaction is preferably carried out in the presence of a metallic catalyst such as copper combined with the silicon as described in Specification 575,669, [Group III].  The inert gas may be mixed with the hydrocarbon halide in the vapour state, or it may be bubbled through a reservoir of the hydrocarbon halide.  The amount of halide which is used may, in this latter case, be regulated by adjusting the temperature of the reservoir.  The preferred proportions are that the inert gas should comprise between 25 per cent and 50 per cent of the gas mixture.  In examples (1) a contact mass prepared by sintering in hydrogen pellets of a 90 per cent silicon, 10 per cent copper mixture is heated to 300 DEG  C. and a mixture of methyl chloride and dry oxygen-free nitrogen passed in at the rate of 40 ccs. of methyl chloride and 100 of hydrogen per minute.  The yield of dimethyldichlorosilane was 13 per cent; (2) dry oxygen free nitrogen is bubbled through a reservoir of ethylene dichloride maintained at 25 DEG -27 DEG  C.  The silicon-copper contact mass is maintained at 370 DEG -380 DEG  C.  Additional halogenated hydrocarbons which are mentioned include ethyl chloride, ethyl bromide, propyl chloride, phenyl chloride, methylene dichloride, and ethylene bromide. Specifications 575,667, 575,668, 575,672, 575,674 and 3139/43, as open to inspection under Sect. 91, also are referred to.
Patent GB-345409-A (GB)
Title: Improvements relating to the casting of molten metals or alloys
IPC: B22D11/14
Filed: 1930-01-29
Abstract: 345,409. Liquid level regulators. HARRIS, H., 54, New Broad Street, London. Jan. 29, 1930, No. 3074. [Class 123 (i).] A number of devices for casting length of pipe, rod, or sheet, are arranged in a bath 18 supplied with molten metal by a pipe 19 controlled by a valve 23 which is connected through a handoperated adjustment 26, 29, to a float 25. The metal enters through a perforated pipe 20 of adjustable inclination. A handoperated drain cock 31 is provided. Specification 188,803, [Class 83 (i), Casting &c. metals], is referred to.
Patent GB-687987-A (GB)
Title: Improvements in or relating to a gas-liquid contacting apparatus
IPC: B01D3/26
Filed: 1951-02-08
Abstract: 687,987. Treating liquids with gases. KOCH ENGINEERING CO., Inc. Feb. 8, 1951 [July 17, 1950], No. 3089/51. Class 55 (ii). In gas-liquid contacting aparatus, a tray -comprises spaced upwardly extending baffle plates with their lower ends bent off and extending in overlapping but spaced non-liquid sealing relationship and providing unobstructed gas passages through the tray. A fractionator 20 is divided internally into vertically spaced zones 36, 38 ... 40, 42, by trays 30, 32 ... 34, extending across the vessel from liquid sealing chambers, formed by baffles 46, weirs 48 and bottom plates 49, to downcomers 44, the sealing chambers being alternately arranged on opposite sides of the vessel so that the flow of liquid entering through an inlet 28 is reversed across each successive tray. The trays which are preferably made in sections comprise perforated plates 50 terminating in overlapping bottom flanges 52 extending between supporting plates 54, the flanges being of tubular form which restricts the gas passage into the space between the plates. Liquid overflowing the weir 48 is thrown by ascending gas on to the first plate whence it passes through the perforations into the next space in which the same entrainment occurs ; liquid penetrating the last plate is directed by the downcomer to the next lower tray. In one modification the plate flanges lie in closely spaced horizontal planes, in another the plates extend horizontally across the vessel. The top edge of the plates may be bent as shown or they may be otherwise bent or curved.
Patent GB-581690-A (GB)
Title: Improvements in or relating to propulsion devices for amphibious vehicles
IPC: B60F3/00
Filed: 1942-03-10
Abstract: 581,690. Amphibious vehicles. STRAUSSLER, N. March 10, 1942, No. 3113. [Class 113 (ii)] An amphibious motor-driven vehicle such as that described in Specification 575,092, has a common drive for the endless tracks and propeller t, and the propeller is mounted so that it can be moved horizontally about vertical trunnions u for steering purposes, and so that it can be withdrawn into the position shown in dotted lines when used'on land, the propeller being protected by a casing in this position. The propeller is driven from a bevel-wheel f splined to a shaft g mounted in a casing g and the rear end of shaft g forms the female element of a dog clutch, the male part h of which is splined to the inner end i of the propeller shaft i<1> connected by a universal joint g to the end i<1> of the propeller shaft. The shaft i<1> and its casing r are adjustable about the trunnions u and a lever v is connected to hand or power operating-mechanism to effect the steering. To put the propeller out of action, the casing j is secured to a tubular member k fitted with pins l secured to a pair of levers m which are rotated by lever-and-link mechanism to raise the propeller to the dotted line position. Shockabsorbing springs are used to deaden vibration when the dog-clutch is put into action.
Patent GB-757543-A (GB)
Title: Improvements relating to hand scoops incorporating weighing mechanism
Inventor: FARMER CHARLES HENRY
IPC: F04D17/04
Filed: 1954-02-03
Abstract: 757,543. Centrifugal blowers. ECK, B. Feb. 22, 1954 [July 17, 1953], No. 5174/54. Class 110(1) , In a centrifugal blower of the type in which air or other gas is drawn. inwardly through the rotor over a part of its periphery and conducted a second time through the rotor over another part of the periphery, a gap 1 which decreases in width in the direction of rotation is formed between the rotor 3 and the wall 4 following the outlet. This arrangement obviates the need for packing between the wall and the rotor. The blade angles # 1  and # 2  may be between 20 and 40 degrees and between 60 and 100 degrees respectively. A fixed elliptical body 2 may be provided to improve the action of the gap 1.
Patent GB-547824-A (GB)
Title: Improvements in or relating to driven axles for vehicles
IPC: F16D7/04
Filed: 1941-03-11
Abstract: 547,824. Motor vehicle driving gears. BENDIX, Ltd., and IRVING, J. S. March 11, 1941, No. 3293. [Class 79 (ii)] [Also in Group XXIV] In a vehicle, a wheel 10 is coupled to a solid driven axle 17 by a clutch comprising a pair of co-operating radically grooved discs 13, 18 pressed together by spring means 20, one disc being adapted to ride over the other when a predetermined driving torque is exceeded. As shown, the disc 13 forms an end cover for the wheel hub 10 and the disc 18 is formed on the end of the axle 17. The latter has no differential and is splined to a driving gear so that it can move slightly axially against the pressure of the springs 20. The springs react against a member 21 engaging frictionally a shoulder 22 on the wheel hub,the member 21 having pins 24 slidably engaging axial holes in the disc 18. The contacting faces of the parts 21, 22, instead of being plane as shown, may be conical.
Patent GB-214752-A (GB)
Title: Improvements in bead sewing machines
IPC: D05B73/12
Filed: 1923-02-06
Abstract: 214,752. Groebli, J. A. Feb. 6, 1923. Universal - feed sewing - machines; surface threads, attaching. - In a bead-sewing machine in which a stitching-thread for attaching the bead-thread to the fabric is wound round the bead-thread, a rotary device is used for positively feeding the beads and for looping the stitching- thread. A shaft 10, Fig. 1, drives through gearing 11 - - 15 a shaft 16, which actuates the sliding nipple-support 20 and the needle-carrier, and through gearing 30-32 a shaft 33 which in turn rotates a tube 38. The tube 38 is mounted in a bearing 39 and, passing through a tube 95, terminates in a block 46 which carries the spindle 47 of a bead separator 48. A tube 53 centred within and spaced from the tube 38 is gapped at 56, Fig. 9, for the passage of the beadthread 60 which passes through it and carries a foot 57, pierced at 58 and 59 for the bead-thread and the needle 75 respectively. The tube 38 supports a thread-reel 43, Fig. 1, the thread from which passes between the tubes 53, 38, through a hole in the block 46 and vertically down through a hole 52 in the separator 48, Fig. 6. to the fabric. In the separator 48 is a gap 50, Fig. 6, below which is a shelf 51. By the rotation of the tube 38 and the separator 48, the stitching-thread is carried round the beadthread and the needle above the last bead' which has fallen so that when the needle completes the stitch the bead or beads are securely attached. The bead-thread, on which are strung the beads, is wound on a reel 62, Fig. 1, and passes through trough 63, past feeder-bars 64, 65, and a sprocket-wheel 74 into the tube 53. The bars 64, 65 have lateral arms extending across the front of the trough and are actuated bv rods 70 which are connected to bell-crank levers, the free arms 68 of which are actuated bv a cam 69 on the shaft 33.
Patent GB-935680-A (GB)
Title: Corrosion inhibiting
IPC: C23F11/06
Filed: 1962-01-31
Abstract: 935,680. Preventing corrosion. CHEMICAL CONSTRUCTION CORPORATION. Jan. 31, 1962 [Feb. 17, 1961], No. 3621/62. Class 123 (1). In a method of inhibiting corrosion of ferrous surfaces by a hot aqueous solution of potassium carbonate containing weakly acid gases such as CO 2  and H 2 S, up to 0.5% of a soluble compound of As, Sb, Bi, or P is added to the solution. The soluble compound is preferably a trivalent metallic compound of As, Sb or Bi such as the oxide and the P may be added as a phosphate or hypophosphite. The solution contains at least 15% of potassium carbonate and is usually maintained at 175-275 F. Many examples are given of the different corrosion rates in solutions containing 35% potassium carbonate and different amounts of soluble compounds. Specification 725,000 is referred to.
Patent GB-570917-A (GB)
Title: Improvements in and relating to circular saws and like rotary cutting tools
IPC: B23D63/00
Filed: 1944-02-28
Abstract: 570,917. Making saws. SPEAR & JACKSON, Ltd., and PARSONS, G. W. Feb. 28, 1944, No. 3647. [Class 83 (ii)] [Also in Group XXIII] Circular saws are made by welding or brazing toothed segments 13 formed of cast hard metal to a disc 10 of less expensive tough metal, the disc being formed with radial slots 12 and flat or segmental seating surfaces 11 to receive corresponding surfaces on the segments 13. To provide teeth of uniform pitch, the rear tooth of each segment is of reduced width to form continuity with one wall of the notch 12. The radial faces of the disc 10 and segments 13 may be ground to reduce their thickness, and the outer edges of the teeth may be thicker than the inner to provide clearance, or the teeth may be set. The teeth may be fitted with cutting-edges of harder metal.
Patent GB-144980-A (GB)
Title: Improvements in ring travellers and ring supports for use in spinning, twisting, doubling and like frames for dealing with fibrous yarns or threads
IPC: D01H7/60
Filed: 1920-02-06
Abstract: 144,980. Hargreaves, J., and Kaye, N. Feb. 6, 1920. Spindle apparatus.-Travellers having forked extremities which engage the ring in ring spinning, twisting, doubling, and like frames are provided with hooks a<3>, Fig. 1, which are arranged substantially parallel to the cross-bar a<2> so that they do not protrude and cannot foul the spindle or the cop. To enable the travellers to be used in frames provided with narrow ring-rails the rings may be carried in split sockets c, Fig. 5, secured to the rails by screws', the socket being shaped so as to form with the ring, a race for the lower prongs of the forks of the traveller.
Patent GB-1490983-A (GB)
Title: Bis((n-hydroxyalkyl)-aminoalkylthio)-alkanes and derivatives thereof
IPC: C07C323/42
Filed: 1974-01-25
Abstract: 1490983 Bis-(aminoalkylthio)-alkanes and sulphones and sulphoxides LABORATOIRE L. LAFON 24 Jan 1975 [25 Jan 1974] 03664/74 Heading C2C Novel compounds (I) (including salts thereof) where n is 5 to 15, x is 0, 1 or 2, A is C 2-6  alkylene, B is hydroxyalkyl, dihydroxyalkyl or acyloxyalkyl and R is H, alkyl, acyl, B, sulphoalkyl or sulphonate alkyl, are made by standard methods. 1,16 - Dichloro - 2,15 - dimethyl - 3,14 - dithiahexadecane and p - (p - chlorophenylthio)- phenoxyisobutyryl chloride are also prepared. Pharmaceutical preparations useful in treating atherosclerosis contain (I) as active ingredient. Administration is orally, parenterally or topically.
Patent GB-785320-A (GB)
Title: Improvements in or relating to means for securing ceiling boards or the like in place
IPC: E04B9/24
Filed: 1955-02-08
Abstract: 785,320. Securing wall and ceiling boards. CHURCHMAN, H. Feb. 8, 1956 [Feb. 8, 1955], No. 3762/55. Class 20(4) A ceiling or like board 10, 11, Fig. 4, is held against the ledge 12, 13, of a runner by means of a wire clip of cranked formation, the middle portion 15 of the latter reaching through the thickness of a backbone 27 of the runner at a position between the opposed faces 16, 17 of the board and its ends 18, 19 closely overlying the face 17 of the board remote from the ledge 12, 13. The runner may be in two parts connected by the portion 15 of the clip, each part having a slot to pass a cranked portion of the clip when the latter is horizontal, the extensions 23, 24 forming finger grips to facilitate turning the clip to the position shown. In a modification the backbone consists of a single thickness of strip material. In a further form the runner is formed in one piece from sheet material bent to form a backbone of double thickness. As shown in Fig. 13, the runner is in three parts, a backbone 27 connected by the clip to an intermediate part which is interengaged with the part formed with ledges 12, 13. In another form in which the boards 10, 11 are readily detachable the ledge portion of the runner, Fig. 5, has a trough 29 to receive the legs of a detachable staple 28, the central portion of the latter passing through an aperture in trough 29 to be engaged by the portion 15 of the clip. In another embodiment a spring clip has an elongated central portion received in trough 29 and its legs snap engage the portion 15. As shown in Fig. 11, a headed screw 36 is threaded into a nut 35, in the form of a thin sheet, to hold the ledge to the backbone 27, ribs 33, 34 being provided on the ledge to locate the backbone. Specifications 661,063 and 663,109 are referred to.
Patent GB-245952-A (GB)
Title: Improvements in or relating to cinder sifters
IPC: F24B15/00
Filed: 1925-02-11
Abstract: 245,952. Byland, W. S. Feb. 11, 1925. Fixed sieves. - Cinder sifters are made in the form of a sheet metal tray with slots g, the metal at the edges of the slots being pressed to stand out of the sheet. In the construction described, the bottom c of the tray is bent at n to form two inclined faces and is provided with three rows of slots, the metal between two of the rows being strengthened by a rib k. The sides b of the tray which are triangular in shape are stiffened by ribs f and provided with edge flanges d and an embossed U-section handle e. The connection between the parts is provided by tongues o on the bottom which are passed through slots in the sides and turned over. Hook flanges p, q support the tray in the ash box.
Patent GB-606648-A (GB)
Title: Improvements in or relating to pre-gummed papers and like sheet materials
IPC: C09J7/32
Filed: 1944-03-01
Abstract: 606,648. Adhesive coated paper. SHAND KYDD, Ltd., and NEUMANN, S. March 1, 1944, No. 3881. Divided out of 605,438. [Class 140] Pre-gummed paper suitable for use as wallpaper, poster papers, bill-board paper and remoistening tape is made by slightly wetting paper with water or aqueous adhesive paste such as ordinary starch paste then dusting a powdered cold water soluble adhesive over the wetting surface and drying. The powdered adhesive may be paste powder, soluble starch degradation products, glues, gums and may contain bentonite or calcium chloride. Specification 480,557 is referred to.
Patent GB-645075-A (GB)
Title: Improvements in or relating to electric servo arrangements
IPC: H02P7/292
Filed: 1948-02-10
Abstract: 645,075. Automatic current control systems. GENERAL ELECTRIC CO., Ltd., and DALE, S. H. Feb. 10, 1948, No. 3891. [Class 38 (iv)] In a closed-loop servo system hunting is substantially eliminated by a negative feed-back path, for a grid-controlled thermionic valve in the loop, containing a series inductancecapacity network resonant at a frequency less than that at which the system would hunt in the absence of the feed-back path. A D.C. motor 1 is supplied from A.C. mains 2 through a transformer 9 and gas- or vapour-filled valves 4, 5 forming a full-wave rectifier 3. A D.C. transformer 30 (not shown in detail), which includes saturable reactors, metal rectifiers and a resistance, and is associated with A.C. mains 2, produces a D.C. voltage, dependent on motor current, which is opposed to a reference D.C. voltage, obtained through a potentiometer 36 from a battery 37, and applied to the gridcathode circuit of a triode amplifier valve 28 direct-coupled to a second triode amplifier valve 29 energizing saturating windings 27 of a reactor 19 thereby controlling the phase of voltages applied to the grids of valves 4 and 5 from A.C. mains 2, so that motor current is maintained constant at a value determined by the setting of potentiometer 36. To eliminate hunting a negative feed-back circuit between anode and grid of valve 28 includes a capacitor 47 and a reactor 48, series resonant at a frequency lower than that at which hunting would otherwise occur, together with a resistor 49 having a value lower than the reactance of the reactor at the hunting frequency. The following modifications are referred to : (a) supply to the motor may be obtained from a polyphase source; (b) in place of the D.C. transformer, current transformers may be included in the anode circuits of valves 4 and 5 and their output rectified; (c) valve 28 or 29 may be omitted, feed-back being applied to the remaining valve; (d) the Provisional Specification refers to a shunt as an alternative to the D.C. transformer.
Patent GB-884922-A (GB)
Title: Gear hobbing machine
Inventor: BUDNICK ARNO
IPC: B23F5/22
Filed: 1960-02-04
Abstract: 884,922. Gear-cutting, PFAUTER, M., PFAUTER, W., PFAUTER, G., and PFAUTER, H. Feb. 4, 1960, No. 4051/60. Class 83 (3). A gear-hobbing machine having the tool movable axially and tangentially of the work comprises two differential drives 19, 20, each associated with a change gear so that additional rotations can be added to the work when the hob moves axially or tangentially whereby both feeds are driven independently of one another. The hob-head 8 is adjustable angugularly in a slide 7. The work is rotated by a gear 33 mounted on a slide 3. The main motor 9 rotates a shaft 11 through an infinitelyvariable speed and reversing drive 10. The shaft 11 rotates the work through change gears 15-18, which are selected according to the teeth on the gear and starts on the hob, a shaft 21, and a worm 22. The differentials are both arranged on the shaft 21. The hob is rotated from the shaft 11 through gears 24, 27, 29, 30 and is carried on a slide 34. The slide 3 is moved by a screw 46 driven by the shaft 11 through gears 13, 37, 38, 40 infinitelyvariable reversing gearing 42 and a shaft 45. The worm-wheel 38 also drives the screw 56 to feed the slide 7 axially of the gear via gears 48, 49, an infinitely-variable reversing gear 50 and gears 51, 55, and this movement is compensated via change gears 58-61 (selected according to the pitch and helical angle), 63 and 67. The hob is moved tangentially by a screw 85 rotated by the worm-wheel 38 through gear 68, infinitely-variable reversing gear 70, gears 74, 78, 80, 81 and 83, the movement being compensated through change speed gears 87-90 (selected according to hob angles), and gears 92 and 96.
Patent GB-127220-A (GB)
Title: Improved Machine for Punching and Finishing Small Metal Articles.
IPC: B21D53/38
Filed: 1919-02-18
Abstract: 127,220. Cordes (Dos Works), Ltd., Sumption, S. R., and Sumption, G. P. Feb. 18, 1919. Metal-working presses; punching.-In a machine of the kind in which, in the same stroke of the machine, a blank is punched and a previouslypunched blank is shaped, the blank that is produced by the punch c is recessed by a die e on a chain driven by a step-by-step movement, and is carried by the die e to the finishing-punch d. The shaft b actuating the plunger a also carries an eccentric g operating the pawl i of the ratchetwheel k, the movement of the ratchet-wheel and .chain being produced on the upward movement of the plunger. The punches c, d, as shown, are for forming washers; the dies e may be changed for forming or stamping other articles, such as boot protectors.
Patent GB-178967-A (GB)
Title: Improvements in electric switches
IPC: H01H23/16
Filed: 1921-02-03
Abstract: 178,967. Arnold, C. L., and Belling, C. R. Feb. 3, 1921. Switches, quick - action. comprise an actuating-member 6 and a contact-carrying member 3, preferably mounted on the same pivot 5, and connected by a spring 8 adapted to move over dead-centres and cause a snap action; initial movement being transmitted from the member 6 to the member 3 by means of one or more intermediate pivoted members having portions projecting on opposite sides of, and into the paths of movement of, the members 3, 6. In the form illustrated in Figs. 1 and 2, there are two intermediate members 11, 12 pivoted at 13, 14 to the wall of the switch casing, and having projecting lugs 15, 16, 17, 18. The lever 6, on being depressed, bears against the lug 16 and forces down the member 11, the other lug 15 of which forces down in turn the member 3. The opening movement of the switch is effected in a similar manner bv the member 12. In the modification illustrated in Fig. 3 there is one intermediate member 20, pivoted at 25 and having four lugs 21, 22, 23, 24.
Patent GB-456445-A (GB)
Title: Improvements in and relating to rotary crushing, granulating and pulverising machines
IPC: B02C13/28
Filed: 1935-02-08
Abstract: 456,445. Impact pulverizers. MILLER, T. H., and ALLEN & CO., Ltd., E., Imperial Steel Works, Sheffield. Feb. 8, 1935, No. 4084. [Class 59] In a pulverizer of the kind in which the rotor is furnished adjacent its periphery with a plurality of hammers in the form of bars, the end members of the rotor are provided with means functioning as jaws for securing the hammer in position. As shown in Fig. 2, the rotor comprises end discs 9 mounted on a rotary shaft 5 and spaced apart by a two-part distance piece 7. The discs are slotted at the periphery to receive reversible beater bars 11 which are recessed longitudinally at 13 for engagement with a projection 12 on the disc and a similar projection on a member 14 slidable on a dovetail projection 16, a bolt 17 on the member 14 passing through the bar 11 and projection 12 whereby the bar is fastened to the disc. The bar may be cored out and as shown in Fig. 9, the bar comprises two parts 20, 21 recessed internally at 23. The casing is provided with impact plates 4 against which the material is thrown by the beater bars.