baber/WOPTO huggingface dataset:
Patent GB-165281-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H01G5/38
Filed: 1920-04-29
Abstract: 165,281. Sullivan, H. W., and Joseph, J. April 29, 1920. Condensers.-An adjustable air condenser H, of the type comprising intercalated sets of vanes, is combined with a condenser F of fixed capacity equal to or slightly less than the maximum capacity of the condenser H. An additional condenser G of fixed capacity equal to twice that of the condenser F may also be provided, the condenser F, G being mounted on an ebonite plate E supported by rods D from the cover plate B of the apparatus. Switches are provided for throwing either or both of the condensers F, G in parallel with the condenser H.
Patent GB-211760-A (GB)
Title: Improvements in or relating to billiard and like tables
IPC: A63D15/00
Filed: 1923-05-03
Abstract: 211,760. Hull, A. May 3, 1923. Ball collecting or returning shoots fitted to billiard and like tables.-The pockets of billiard and like tables are connected in pairs so as to lead the balls respectively to a position between the top pockets and to positions at the sides between the middle and baulk pockets. As shown in the Figure the top pockets are connected by inclined shoots D so that the balls collect in a central position. At each side the middle and baulk pockets are similarly connected as shown.
Patent GB-976248-A (GB)
Title: An abrasive article of manufacture
IPC: B24D11/00
Filed: 1961-04-04
Abstract: A bonded abrasive tool, particularly in the form of a grinding wheel, comprises (a) at least 15%, preferably 75-50%, by volume of fused alumina grain and (b) at least 15%, preferably 25-50%, by volume of fused zirconia grain; most suitably (a) and (b) are present in substantially equal amounts by volume.  The bond may be of natural rubber, synthetic rubber, e.g. butadiene-acrylonitrile or butadiene-styrene polymers, thermosetting resin, e.g. phenolic resins, or shellac.
Patent GB-664566-A (GB)
Title: Impulse generating apparatus
IPC: G06F3/02
Filed: 1949-05-04
Abstract: 664,566. Digital electric calculating-apparatus. ECKERT-MAUCHLY COMPUTER CORPORATION. May 4, 1949 [June 10, 1948], No. 11964/49. Class 106 (i). In an impulse generating device a signal controlled by a data responsive register is delivered to a signal delay line, the data responsive register being cleared after the termination of the signal. The invention concerns apparatus for translating the condition of a number of circuit controllers into a unique sequence of electrical impulses, e.g. in high-speed electrical calculating apparatus, for entering digital information in a time-spaced relationship. In a first embodiment exciting pulses, spaced by several pulse times, are applied constantly to the grid 18, Fig. 1, of a gate valve 17. When a switch 49 is closed the resulting charging surge through a capacitor 47 produces a positive surge at the anode 32 of double triode arranged in a trigger circuit 30 and serves to reverse the normal condition of the trigger whereupon the anode 32 becomes more positive and removes blocking bias from the grid 20 of the gate valve 17. Thus, pulses corresponding to the exciting pulses but of reversed polarity, are applied to a discharge tube 25 and equivalent pulses developed across its anode load resistor 29 pass to a delay line 50, travelling successively through the line sections until each reaches, and is absorbed by, an impedance 62. Switches 10 ... 14 are set up in accordance with the data which is to be translated into a sequence of electrical pulses; where one of these switches is closed, the application of a pulse, during its passage down the delay line, to the grid of the corresponding triode 70 ... 74 causes the valve to conduct momentarily so that a pattern of negative pulses 65 ... 67 in accordance with the settings of the switches 10 ... 14 appears on the signal line 15. When the pulse on the delay line 50 reaches the impedance 62, the voltage developed thereby is applied to the trigger circuit 30, restoring it to the normal " Off " position. In a modification, the cathodes of the triodes 70 ... 74 are connected directly, via resistors, to a relatively low potential and the controlling switches 10 ... 14 are arranged between the delay line and the respective control grids of the triodes 70 . . . 74. In another modification the switches 10... 14 are arranged in the respective anode circuits of the triodes 70...74. In another embodiment, Fig. 4 (not shown), pentodes replace the triodes 70 ... 74 and triggers are used instead of the switches 10 ... 14. The outermost grids of the pentodes may be connected, through switches, to a line supplying timing pulses which ensure a sharper signal; the second grids are connected to the individual triggers, and the inner grids to tappings in the delay line. The triggers may be set up by applying positive pulses from any suitable source; they are restored to normal by the final pulse developed in the terminating impedance of the delay line.
Patent GB-222532-A (GB)
Title: Improvements in or relating to fastenings for doors, boxes and the like
IPC: E05B63/00
Filed: 1923-05-04
Abstract: 222,532. Dixon, E., (Claxton, P.). May 4, 1923. Hook fastenings; multiple fastenings; catches, automatic; catches yielding to pull and pressure; hasp fastenings.-Doors, lids of boxes, and like articles are fastened throughout the whole of their length by the engagement of a semi-cylindrical member rotatably secured to the door frame, box, &c., and a rod or bar secured to the door, lid, &c. Fig. 3 shows a box K, the lid L of which carries a rod B extending approximately the whole length of the lid and entering a slot M in the side of the box when the lid is closed. The semi-cylindrical member A is rotatably mounted in the slot M as shown in Fig. 5, and when the lid is closed this member is manually rotated by means of an extension N on it projecting into the recess P in the side of the, box to cause it to embrace the rod and secure the lid. Locking is effected by turning down the hasp member O into the recess P and shooting the bolt of a lock carried by the hasp member O into a recess O<1> in the side of the recess P. In the form shown in Fig. 8, the bar B is replaced by a flange R on the lid L provided with a lip R'. When the lid is closed, the flange R automatically rotates the member A to secure the lid by engaging behind the lip R<1>. Locking is effected by shooting the bolt S of a, lock carried by the lid behind a projection on the member A. Fig. 12 shows the invention applied to the vertically-hinged door T of a safe. In this case the flange carrying the lip T<1> with which the member A engages enters a slot formed in the safe wall, avoiding the cutting away of the edge of the wall as in the form shown in Fig. 8. The member A is secured in locking position by the bolts of two separate key-locks mounted in the roof of the safe and entering holes S<1>, 8<2> in the member A. The member A mav be mounted in the lid or door and the bar or equivalent member on the box or door-post.
Patent GB-829946-A (GB)
Title: Improvements in or relating to tool holders for lathes
Inventor: CHERRY JAMES
IPC: B23B27/16
Filed: 1956-04-20
Abstract: 829,946. Tool-holders. PRODUCTION TOOL ALLOY CO. Ltd. July 10, 1957 [April 20, 1956], No. 12056/56. Class 83 (3). A lathe tool-holder 18 for adjustably supporting a tool-bit 21 disposed obliquely to the holder, is supported so that the resultant thrust on the bit during cutting passes along a line intersecting the underside of the tool-holder between a downwardly-projecting part 22 arranged on one side and the other side of the holder. A tungsten-carbide or other tool-bit 21, is gripped in an oblique recess of the holder 18 by a screw 29. The holder is stepped along its lower longitudinal edge to provide the downwardly-extending part 22, which overlaps the edge of the tool-rest 26. A vertical adjusting- screw 23 for the tool-bit is provided in the part 22.
Patent GB-265434-A (GB)
Title: Improvements in or relating to the supply or delivery of pulverized fuel to furnaces, kilns, and the like
IPC: F23K3/00
Filed: 1926-05-12
Abstract: 265,434. Procter, H. A. May 12, 1926. Pulverulent-fuel burners. - In a pulverulent-fuel burner 8 of the "Buell" type, air under pressure is supplied by a pipe 12 to a ring 12a which communicates with the inner and outer casings 8<a>, 8<b> of the burner.
Patent GB-157047-A (GB)
Title: Improvements in or relating to the manufacture of formic aldehyde or methyl alcohol or mixtures thereof
IPC: C07C45/49
Filed: 1917-08-25
Abstract: In the production of formaldehyde or methyl alcohol or mixtures thereof by catalytic hydrogenation of carbon monoxide or dioxide, the catalyst may be platinum black obtained by reducing chloroplatinates with formaldehyde and precipitating with alkali, or nickel obtained by precipitating the nitrate with alkali and reducing at temperatures below 100 DEG  C.  Or a nickel, platinum, &c. catalyst may be supported on a porous carrier; for example, pumice is impregnated with a solution of a nickel or platinum salt, dried and reduced; or nickel nitrate solution is mixed with a solution of sodium silicate or magnesium sulphate, the mixture evaporated to dryness, heated, and reduced.  The hydrogenation may be effected in iron cylinders containing the porous material impregnated with catalyst; the mixture of carbon monoxide and hydrogen is preferably admitted at the bottom and the products distil off at the top.  Or a series of vertical iron tubes connected at top and bottom to a collector may be used, the ends of the tubes being provided with perforated plates to ensure proper distribution of the reacting gases.  Specification 108,855, [Class 2 (iii), Dyes &c.], is referred to.ALSO:In the production of formaldehyde or methyl alcohol or mixtures thereof by catalytic hydrogenation of carbon monoxide or dioxide, the catalyst may be platinum black obtained by reducing chloroplatinates with formaldehyde and precipitating with alkali, or nickel obtained by precipitating the nitrate with alkali and reducing at temperatures below 100 DEG  C.  Or a nickel, platinum, &c. catalyst may be supported on a porous carrier; for example, pumice is impregnated with a solution of a nickel or platinum salt, dried and reduced; or nickel nitrate solution is mixed with a solution of sodium silicate or magnesium sulphate, the mixture evaporated to dryness, heated, and reduced.  The hydrogenation may be effected in iron cylinders containing the porous material impregnated with catalyst; the mixture of carbon monoxide and hydrogen is preferably admitted at the bottom and the products distil off at the top.  Or a series of vertical iron tubes connected at top and bottom to a collector may be used, the ends of the tubes being provided with perforated plates to ensure proper distribution of the reacting gases.  Specification 108,855 is referred to.
Patent GB-286123-A (GB)
Title: Manufacture of improved catalysts
IPC: B01J23/70
Filed: 1927-05-06
Abstract: 286,123. I. G. Farbenindustrie Akt.- Ges. May 6, 1927. Addition to 281,218. Catalytic agents, preparation and treatment of; hydrogenated organic compounds, catalytic production of.-The process of the parent Specification, according to which metallic catalysts, particularly those promoting hydrogenation and reduction, are prepared by separating the metal in a finely subdivided form from aqueous solutions of its salts by means of a more electropositive metal, is modified in that the separation is effected in the presence of an organic base or a.n acid amide. The operation may be conducted under ordinary or elevated pressure, and a carrier, such as kieselguhr, silica gel, or animal charcoal, may be present. The separation may be brought about by hydrogen instead of by a metal, and in this event an addition of metal may be made to hasten the separation. In one example, an aqueous solution of nickel chloride is mixed with pyridine and the mixture is warmed and treated gradually with zinc dust, whereafter the precipitated nickel is filtered, heated with sodium carbonate solution, separated, and washed. In another example, an aqueous solution of cobalt sulphate mixed with urea is treated similarly. In a further example, an aqueous solution of nickel sulphate is mixed with pyridine, kieselguhr, and finely divided nickel and the mixture is treated in an autoclave with hydrogen under a pressure of 30-40 atmospheres and at a temperature of 100‹ C.
Patent GB-789576-A (GB)
Title: Improvements in or relating to alkyl-substituted hydrindacenones
IPC: C11B9/00
Filed: 1956-04-23
Abstract: The invention comprises 5:5:7:7 - tetramethyl - s - hydrindacen - 1 - one, 4:6:6:8:8 - pentamethyl - as - hydrindacen - 3 - one, 4:6:6:7:8:8 - hexamethyl - as - hydrindacen-3-one, and 4:6:6:7:7:8:8 - heptamethyl - as - hydrindacen - 3 - one, and a process for preparing alkyl-substituted s-hydrindacen-1-ones or alkyl-substituted 4-alkyl-as-hydrindacen-3-ones by condensing alkyl-substituted indans with b -halopropionyl halide to form the corresponding b -haloethyl ketones and cyclizing the latter with elimination of hydrogen halide. In examples: (1) 5:5:7:7 - tetramethyl - s - hydrindacen-1-one is made by cyclizing b -chloroethyl 1:1:3:3 - tetramethylindan-5-yl ketone prepared by reacting b -chloropropionyl chloride with 1:1:3:3-tetramethylindan, the latter is obtained by reacting 4-methyl-4-phenyl-pentan-2-one with methyl magnesium iodide and cyclizing the 2:4-dimethyl-4-phenyl-pentan-2-ol obtained; (2) 4:6:6:8:8-pentamethyl-as-hydrindacen-3-one is similarly made from b -chloropropionyl chloride and 1:1:3:3:5-pentamethylindan which is obtained either by alkylation of p-cymene with isobutene or by cyclizing 2:4-dimethyl-4-p-tolyl-pentan-2 ol prepared by methyl magnesium iodide reaction on the 4-methyl-4-p-tolyl-pentan-2-one prepared by reaction of toluene and mesityl oxide; (3) 4:6:6:7:8:8-hexamethyl-as-hydrindacen-3-one is prepared from 1:1:2: 2:3:5-hexamethylindan obtained by reaction of p-cymene with dimethyl ethyl carbinol; (4) 4:6:6:7:7:8:8 - heptamethyl - as-hydrindacen - 3 - one is made from 1:1:2: 2:3:3:5-heptamethylindan prepared from p-cymene and 2:3-dimethyl-butan-2-ol.
Patent GB-602859-A (GB)
Title: Improvements in silencers
IPC: F01N13/00
Filed: 1946-04-24
Abstract: 602,859. Inlet and exhaust silencers. VOKES, C. G., STREETE, C. M., and VOKES, Ltd. April 24, 1946, No. 12408. [Class 7 (ii)] A silencer for gaseous inlet or exhaust streams flowing to or from an apparatus generating sound waves comprises an inner tube for the passage of the gases, the tube being provided with slots or apertures, spaced to register with the peaks of the sound waves or their harmonics, and giving access to resonant sound chambers arranged around the tube. In the exhaust silencer shown in Fig. 2, the gases enter at 10 into the inner tube 5 which communicates through the slots 8 with resonant chambers formed in the annular space between tubes 5 and 6 by means of the baffles 11. The tube 6 is perforated and the space between it and a third coaxial tube 7 is filled with sound absorbing material. The centres of the sets of circumferential slots register with the peaks of the waves and each set may be axially duplicated in such a way that the space between any two slots of one set will be longitudinally aligned with a slot in the next set. Duplicating is usually most necessary for the first few sets (the first three in Fig. 2) in order to deal satisfactorily with the lower harmonics. The slots are made as narrow as possible, and outwardly facing vanes are provided on the edges remote from the gas inlet to keep gas flow smooth. A silencer is described in which there are two units similar to the above, but with one slidable in the other. Fig. 3 shows an inlet silencer for a blower constructed on the same principle; the sound absorbing material is dispensed with.
Patent GB-1174980-A (GB)
Title: Carburettors for Motor Vehicles
IPC: F02M19/08
Filed: 1967-03-17
Abstract: 1,174,980. Spray carburetters. FORD MOTOR CO. Ltd. March 17, 1967 [June 22, 1966], No.12520/67. Heading F1B. A valve 36 in a secondary air by-pass 34, operated by a swinging weight 41, closes upon acceleration or when the vehicle is ascending a hill to increase the fuel-air ratio. Closing of the valve 36 increases the suction in the Venturi 26 and hence increases the fuel supply. The shaft of valve 37 is connected to the weight 41 through a bi-metallic element 42 which, for given portion of weight 41, varies the position of valve 36 in accordance with temperature to decrease the fuel-air ratio as temperature increases. Valve 36 is also operative upon deceleration to reduce the fuel-air ratio.
Patent GB-620680-A (GB)
Title: Improvements in or relating to ultra high frequency generators and circuit arrangements
IPC: H03B5/18
Filed: 1946-04-25
Abstract: 620,680. Velocity-modulated tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 25, 1946, No. 12562. Convention date, June 10, 1942. [Class 39 (i)] [Also in Groups XXXVII and XL (c)] An oscillation generator having a low-loss hollow resonator frequency determining circuit, comprises means for alternately loading this circuit so that oscillations cease, and for removing this loading so that the circuit oscillates at substantially the same frequency as that prior to loading. Fig. 1 shows an oscillator comprising a " Klystron " (Registered Trade Mark) tube 1, in a radio transmitting and receiving system. Resonator 4 provides a low-loss tuned circuit, feedback being provided by coupling loop CL. Modulation may be applied by modulator 8. Antenna 6 is connected through a transmission line and switch 51 to coaxial line 7 and coupled to tank circuit 4 by loop L. A second position of switch 51 connects antenna 6 to the receiver RC. When switch 51 is in the receiving position, transmission line 7 is open circuited, which by introducing a reactive load detunes tank circuit 4, The amount of detuning is controlled by the length of line 7, and may be made sufficient to stop the oscillations in the tube 1. In order that the heating of the resonator 4 circuit shall be substantially the same during on or off periods and thus improve frequency stability, the resonator or other electrode voltage may be increased during the off period. This may be arranged by means of switch 52 which operates simultaneously with 51, and short circuits an adjustable resistance R1 connected between the' source of positive voltage E1 and the resonator 4. This change in electrode voltage is preferably arranged so that it enables the oscillation to be stopped by the detuning -feature more easily. As an alternative, the line 7 may be short-circuited instead of open-circuited, during the receiving period, the length of this line being appropriately adjusted to give the required load on resonator circuit 4. Two forms of adjustable transmission line suitable for line 7 are described, Figs. 2 and 3 (not shown), and a form of switch having a rotating cylinder and suitable for switch 51 is also described, Figs. 4 and 5 (not shown). In a modification, Fig. 6 (not shown), the antenna is fed from resonator 4 by a second separate transmission line.
Patent GB-402333-A (GB)
Title: Improvements in or relating to two-stroke internal combustion engines
IPC: F02B25/00
Filed: 1933-05-01
Abstract: 402,333. Cylinders. SULZER FRERES SOC. ANON., Winterthur, Switzerland.- (Assignees of Thomann, R. ; 21, Avenue do Perolles, Fribourg, Switzerland.) May 1, 1933, No. 12596. Convention date, May 12, 1932. [Class 7 (ii).] In a two-stroke engine cylinder in which the scavenging and supercharging air is admitted by a single row of ports 6, uncovered by the piston before the exhaust ports 4, the passages behind the ports 6 are such that, when the piston has moved 2/3 of the distance from the bottom dead centre to the position at which it covers the ports 4, at least 4/5 of the passage area is still available. This ensures that when non-return valves 8 open at the commencement of scavenging a similarly large area will be available. The upper and lower walls of the passages behind the ports 6 are flat and curved respectively, as shown, and in a double-acting engine the length l of uninterrupted wall on the inlet side is not less than 1/6 of the piston stroke.
Patent GB-930445-A (GB)
Title: Improvements in concentration of liquids by freezing
Inventor: SMITH PAUL LEWIS
IPC: C12H6/04
Filed: 1961-04-07
Abstract: 930,445. Concentrating food liquids. UNION CARBIDE CORPORATION. April 7, 1961, No. 12609/61. Class 49. [Also in Group XIII] In continuously concentrating a solution or a liquid suspension of a heat-sensitive material, e.g. orange juice, beer, milk, by freezing, the material, before, during and after concentration, is in a controlled, oxygen-free atmosphere, e.g. an inert or reducing gas atmosphere. A singlestrength solution such as natural orange juice is introduced through a conduit 10 to a refrigerated storage tank 20. Through a conduit 21 nitrogen is introduced to blanket the head space in the tank 20, and is vented off through a conduit 22. Cooled juice is pumped by a pump 23 to a refrigerated cold-walled tank 25 and subjected to a temperature of minus 20‹ F. Scrapers 26 engage the inner surface up the tank 25 and driven at between 10 and 50 r.p.m. by a motor and speed reducer unit 27. Conduits 28 and 29 introduce and discharge nitrogen into and from the top of the tank 25. A slurry consisting of concentrated orange juice and 50% by weight ice crystals is taken from the bottom of the tank 25 by a pump 30 and passed to a continuous centrifuge 32 to remove the ice crystals. The juice passes to a storage tank 35 via a conduit 34, and the separated ice crystals are carried by a screw conveyer 33 to another continuous centrifuge 53, where remaining juice is removed. Nitrogen is passed by the conduit 29 to head space of the storage tank 35 and then to the centrifuge 32 from which it passes to a manifold conduit 38. The process is repeated two more times, using refrigerated cold-walled tanks 40 and 45 and continuous centrifuges 42 and 46, and the final concentrated juice is pumped to a cold walled storage tank 48, also blanketed by nitrogen. The final juice is pumped to a coldwalled blending tank 50, and juice from the tank 20 is fed as desired by a pump 51 to control the concentration of the juice product. Juice may be subjected to a stripping operation to remove any oxygen containing gas before concentration, e.g. with Fig. 2 the juice is supplied through a conduit 60 to a stripping column 62, a non-oxidizing gas, preferably nitrogen, is fed into the bottom of the column 62 through a conduit 64 and in moving upwards displaces any oxygen-containing gas, and the substantially oxygen-free juice is pumped to a heat stabilizer 68, into a cooler 72 and then into the refrigerated storage tank 20 of Fig. 1, nitrogen being passed in series through the stabilizer 68, the cooler 72 and the storage tank 20. Suitable gases for the concentrating are nitrogen, carbon dioxide, ethylene, helium and argon. Suitable gases mentioned for the stripping are nitrogen, argon, helium and hydrogen.
Patent GB-108913-A (GB)
Title: Improvements in or relating to Toy Cycles or Ski-cycles
Inventor: SALSBURY GERALD CARLETON
IPC: B62M1/32
Filed: 1916-09-07
Abstract: 108,913. Salsbury, G. C. Sept. 7, 1916. Foot-cycles, toy cycles, or ski-cycles are fitted with propelling-mechanism the whole of which is located in the vicinity of the rear wheel. The mechanism comprising a sliding or longitudinally moving member d which is directly operated by the rider's foot and is provided with a rack g for driving the wheel c through a pinion h and oneway clutch. The member d is kept in place by studs f, f<1> engaging with slots e, e', and, after depression, it is restored to raised position by one or more springs, for example a spring i<1> or a helical tension spring connecting the lower rear part of the member with the stud f.