baber/WOPTO huggingface dataset:
Patent GB-515871-A (GB)
Title: Improvements in or relating to valves
IPC: F16K31/122
Filed: 1938-07-04
Abstract: 515,871. Fluid-actuated valves. VINCZE, S. I., July 4, 1938, No. 19809. [Class 135J [Also in Group XXXIV] A valve device comprising a main valve actuated by a doubleacting piston under the control of an auxiliary valve has the auxiliary valve operatively connected with the plunger of an oil pump adapted to deliver a quantity of lubricant to the slide valve for every reciprocation of the latter. The casing of the main valve which is without stuffing boxes is provided with two control conduits leading to ports 9d, 9e on the auxiliary valve casing which has a supply port 9b and two exhaust ports 9c connected by a passage 9c'. The auxiliary valve 9 which is formed as a hollow piston valve is actuated by a rod 9f and has a tubular extension 10 adapted to act as a pump plunger. A loose-ball suction valve 11 is arranged at the lower end of a passage leading to a lubricant reservoir 14, and a loose-ball 12 delivery valve is arranged within the valve to control the discharge of lubricant through ports 13 to an annular chamber surrounding the valve.
Patent GB-816236-A (GB)
Title: Improvements in the preparation of phenanthridine compounds
Inventor: PEAK DOUGLAS ARCHIBALD
IPC: A61K31/00
Filed: 1956-06-27
Abstract: The 10 : 11-dimethoquaternary salts of 2-amino - 7 - (21 - amino - 61 - methyl - 41 - pyrimidylamino) - 9 - p - aminophenylphenanthridine are prepared by reacting a 2 : 7-diamino-9-p-aminophenyl - 10 - methylphenanthridinium salt with a 2-amino-4-chloro-1 : 6-dimethylpyrimidinium salt in the presence of an aqueous solution of an acid such as hydrochloric, hydrobromic, sulphuric, phosphoric, or toluene-p-sulphonic, at a pH within the range - 0.9 (determined by multiplying the log10 of the concentration of acid by the ionic activity coefficient) and 1.5.  The reaction is suitably carried out in hydrochloric or hydrobromic acid at a concentration between 0.2 N and 0.75 N and the reaction products are separated by addition of the same acid to give an acid concentration of 4N whereby unwanted reaction products are precipitated, filtering, adjusting the filtrate to a pH of about 6 by addition of alkali and adding ammonium bromide to precipitate the desired compound.  The reaction may also be carried out in the presence of an acid other than hydrochloric or hydrobromic, in which case the reaction mixture is neutralized and the precipitated mixture of products is re-dissolved in warm 4N hydrochloric acid before filtration and reprecipitation, as above. The final precipitate may conveniently be extracted with a solvent to remove residual by-products.  Examples describe the preparation of the 10 : 11-dimethobromides of the above pyrimidylaminophenanthridine by the method of the invention.
Patent GB-499216-A (GB)
Title: Improvements in or relating to two-stroke compound expansion internal combustion engines
IPC: F02B41/08
Filed: 1937-07-19
Abstract: 499,216. Two-stroke cycle compound engines; valves. TOTH, C. J. July 19, 1937, No. 19970. [Classes 7 (ii) and 7 (vi)] Combustion products from the cylinder Ah pass to a receiver R from which, on the opening of the valve P, they enter the space Q and act on the lower side of the stepped piston, being finally exhausted through the valve E. Air induced through the valve Ka is compressed in the annular pump-chamber I and transferred to the high-pressure combustion chamber Ah by way of the valve Ke and reservoir G. Slide valves H, P, Fig. 2, operated from the shaft O may control the transfer from the receiver to the low-pressure stage, the evacuation of the latter, and the admission of air to the combustion chamber.
Patent GB-201937-A (GB)
Title: Hollow blocks for floors and ceilings
IPC: B28B7/16
Filed: 1923-08-03
Abstract: 201,937. Bouton, A. at G. Aug. 5, 1922, [Convention date]. Flooring and ceiling bricks. - Hollow blocks for floors and ceilings of the kind which are closed on all sides and are formed of two parts a, b secured together by pressure when plastic, are made of a concrete composed solely of a binding-material such as cement or plaster and a plastic siliceous substance such as kieselguhr. Projecting bases g are formed on the blocks in order to provide spaces between the upper parts of adjacent blocks to take the reinforcing-rods and the mortar filling. A small projection h is cast above the base portion g to support the reinforcements.
Patent GB-980749-A (GB)
Title: Method of marking volumetric glassware
Inventor: GRAHAM PAUL N W
IPC: C03C21/00
Filed: 1962-05-24
Abstract: Red indica resistant to alkaline attack are produced on volumetric glassware (e.g. of borosilicate glass) by applying to selected areas a copper staining paste containing silver ions and heating the glass in a reducing atmosphere to produce indica comprising reduced copper and silver ions.  The paste is prepared from a mixture of black copper oxide, silver nitrate proportioned to provide a Cu/Ag ratio of from 5 to 25:1, ferric oxide and a filler comprising BaCO3, ochre or bentonite.  The ingredients are wet milled, dried and milled with an organic vehicle and applied to the article by silk screening or spraying. The coated glassware is heated in a kiln above the annealing temperature of the glass to effect ion-exchange between the copper and silver ions and the alkali metal ions in the glass, then a reducing atmosphere is introduced into the kiln (e.g. burned natural gas containing H2 and CO, or SO2) and the kiln temperature dropped to 540 DEG  C. over a period of 45 minutes.  In examples given the composition of the staining paste is 65 parts CuOAgNO3 in an amount sufficient to provide the required Cu/Ag ratio, 14 parts Fe2O3 and 21 parts filler. Specification U.S.A. 2,701,215 is referred to.
Patent GB-668332-A (GB)
Title: Improvements in and relating to packing crates
Inventor: WALLETT EDGAR
IPC: B65D6/08
Filed: 1949-07-30
Abstract: 668,332. Crates. NORTH STAFFS STEEL CRATES, Ltd. July 27, 1950 [July 30,1949], No. 20045/49. Class 18 In a wire mesh crate having all sides secured to the base, the sides are held erect by removable coiled wires 20 which, inserted at the top along the length of the meeting edges of the sides, coil round the edges to join them together. The ends of the wires 20 may be hooked to engage horizontal edges of the sides.
Patent GB-293767-A (GB)
Title: Improved process for treating artificial fibres with liquids
IPC: D01D10/04
Filed: 1928-07-11
Abstract: 293,767. Du Pont Rayon Co., (Assignees of Gladding, E. K.). July 11, 1927, [Convention date]. Apparatus for making filaments. - Cakes of artificial fibres are treated with liquids, for example washed and bleached, while covered with a protective fabric, such as cheese cloth, which will permit the passage of liquids. The covering is wrapped round the cake, Fig. 2. so that it overlaps at 3. The top portion is then wrapped round the inside of the cake and the lower portion brought up through the interior and over the top of 'the cake so that it overlies the free edge of the top portion, Fig. 3. The cakes are usually treated by hanging them on rods and permitting water and the treating liquids to trickle over them.
Patent GB-797571-A (GB)
Title: Waterproof cellulose or regenerated cellulose film, sheets or filaments
IPC: D06M15/227
Filed: 1956-06-29
Abstract: 797,571. Waterproof cellulose materials. BERGWERKSGES HIBERNIA AKT.-GES. June 29, 1956 [July 1, 1955], No. 20172/56. Class 140. Films, sheets, or filaments of cellulose or regenerated cellulose are waterproofed by coating with polypropylene which may be produced by the low pressure or Ziegler method. The polypropylene may be applied as a melt or as a solution, e.g. in cyclohexane, n-heptane, diethyl ether, acetone, decalin or alkyl cyclohexanes such as ethyl- and isopropyl-cyclohexane.
Patent GB-710959-A (GB)
Title: Improvements in and relating to combustion turbines
Inventor: KOLB PAUL
IPC: F02C7/105
Filed: 1951-08-27
Abstract: 710,959. Gas turbine plant. PARSONS & CO., Ltd., C. A. Aug. 12, 1952 [Aug. 27, 1951], No. 20182/51. Class 110(3) A gas turbine plant comprises in combination a turbine-compressor unit c, b co-axially arranged with reference to a useful power turbine d in series therewith, a rotary regenerative heat exchanger n of the annular disc type through which the heat exchanging fluids are axially directed and which is disposed on the exhaust side of the turbine d and connected thereto by two diametrically opposite ducts j together with two further ducts m which are situated in spaces between the first mentioned ducts j and are each annularly disposed about a combustion chamber e. said further ducts m feeding air from the compressor to the heat exchanger in a direction opposite to that of the combustion products flowing in the combustion chamber 3. The combustion chambers are disposed between two groups of diametrically arranged auxiliaries g which are driven bv the turbine c through gearing h. The turbine d drives a useful power shaft t through an epicyclic gear train u.
Patent GB-1006838-A (GB)
Title: Improvements in or relating to signal amplitude limiters
Inventor: SOSIN BOLESLAW MARIAN
IPC: H03G11/02
Filed: 1962-05-25
Abstract: 1,006,838. Voltage measurement. MARCONI CO., Ltd. Nov. 19, 1962 [May 25, 1962], No. 20190/62. Heading G1U. [Also in Division H3] In a signal amplitude limiter circuit a network including a pair of input terminals 1, 2 and a pair of output terminals 3, 4, a tunnel diode 9, biased from a constant current source 10,11 is connected across the network as shown in the Figure. If the input R. F. signal across terminals 1, 2 is small only a very small portion of it reaches output terminals 3, 4 because the diode is operating in its low voltage state and it offers a very low shunt impedance. However above a certain amplitude of input signal determined by the voltage-current characteristic of the diode the latter will be switched to its high voltage state, Fig. 2 (not shown) so that it offers a high shunt impedance with the result that the full output is obtained at terminals 3, 4. Any further increase in input amplitude only slightly increases the output amplitude. Current meter 13 indicates when full power is obtained by a sharp rise or fall of the current through it.
Patent GB-570352-A (GB)
Title: Improvements in root harvesting machines
IPC: A01D23/02
Filed: 1943-12-03
Abstract: 570,352. Topping machine for root crops. DOUGLAS, A. A. H. Dec. 3, 1943, No. 20243. [Class 6 (iii)] A machine for topping sugar beet and similar root crops before the roots are lifted from the ground comprise two topping plates or discs l<1>, l<2> which are capable of lateral separation when an obstruction is met and are normally retained in their operative positions by a spring n or other yielding means. The machine shown comprises plates a fitted with tracks b, adapted to flatten down the foliage, and with a transverse shaft c fitted with driving sprocket e. Two bevel wheels #<1> on shaft c engage with bevel wheels g<1> on longitudinal shafts h<1>which also carry, bevels i<1> meshing with bevel wheels k<1> fitted to the spindles carrying the topping discs. The spindles are mounted in brackets m<1> which can each move. about the axis of the, respective shaft h<1>. Thus, if a stone encounters the discs or tends to jam between the tracks b and the discs, the spindles of the latter will move about. the axes of shafts h<1> against the action of spring n. The upper end of each spindle screw threads into its bevel wheel k<1> and is slotted longitudinally to receive a pin passing through the boss of the wheel when the spindle has been adjusted to bring its disc to the required height.
Patent GB-779221-A (GB)
Title: Method for producing phenolic substances through the treatment of chlorinated diphenyls and polyphenyls and substances obtained thereby
IPC: C07C37/02
Filed: 1955-07-13
Abstract: A high resistance to fungi and bacteria is imparted to polyvinyl chloride by the incorporation of mono- (or poly-) hydroxy-mono- (or poly-) chloro-di- (or poly-) phenyls.  The preparation of such compounds from a chlorinated di- (or poly-) phenyl containing 3 to 10 atoms of chlorine per molecule is described (see Group IV (b)).ALSO:In a method of producing a highly fungicidal and bactericidal mono-(or poly-) hydroxy-mono-(or poly-) chloro-di-(or poly-) phenyl, a chlorinated di- (or poly-) phenyl containing 3 to 10 atoms of chlorine per molecule is saponified into the mono-(or poly-) hydroxy-di-(or poly-) phenyl by means of an alkali metal hydroxide in a polyhydric alcohol medium, one or more but not all, of the chlorine substituents of the starting material being saponified to hydroxy substituents.  Generally caustic soda or potash in ethylene glycol is used to effect the saponification. The products form alkali metal salts which can be converted into insoluble metal derivatives by double decomposition with soluble iron, copper or zinc salts.  In examples: (1) hexachlorinated diphenyl is heated at 180 DEG  C. with caustic soda and ethylene glycol.  A product soluble in dilute alkalis and containing 51 per cent of chlorine is obtained. Diethylene glycol is a by-product; (2) a similar procedure using 4 mols. of caustic soda for each mol. of chlorinated diphenyl gives an oil containing dihydroxytetrachlorodiphenyl and some monohydroxyderivatives; (3) chlorinated polyphenyls obtained from a fraction comprising ortho-, meta- and para-triphenyl and containing 56 per cent by weight of chlorine, treated by procedure similar to that of Example (1), gives an ambercoloured resinous solid containing 46.4 per cent by weight of chlorine.
Patent GB-519929-A (GB)
Title: Improvements relating to apparatus for setting bowling pins upon the bed of a bowling alley
IPC: A63D5/02
Filed: 1938-07-09
Abstract: 519,929. Bowling alleys. TRIGGS, W. (Bowling Patents Management Corporation). July 9, 1938, No. 20412. [Class 132 (ii)] Apparatus for setting bowling pins on an alley includes a pin setting support provided with means for receiving and holding the pins 'in proper playing position, said means being adapted to release the pins when the setting support is moved into a pin setting position, so that the pins are placed in proper playing positions on the bed of the alley when the support is moved away and is characterised in that the movable setting, support is provided with suction holding means arranged to engage portions of the bowling pins and to hold said pins in proper playing , arrangement on the support due to suction produced in said holding means. A support 45, shown in its component parts in Fig. 15, comprising a rectangular frame 46 and two triangular frames 59<1> and 50, all formed of pipes, the interiors' of which are interconnected. and connected by passages in the bearing members to a pipe 103 and a suction motor 105, is mounted on shafts 84 rotatable in bearings 87, attached to members 89 with guide rollers 90 for engaging U-shaped guides 26; Figs. 1 and 18, for vertical displacement by cords 91 and motors 22. The shafts 84 carry radial arms 101 with rollers 102 for engaging the inside grooves of the guides 26. which have extra arms 30; 31, 33, Fig. 5, with spring gates 42, 35, 39 and two-way gate 44. The pins are placed in wire frames 71 arranged on the triangular frame 50. Each pin depresses a spring tensioned needle valve 70, Fig. 10. in a rubber cup 66 to connect the cup with the suction motor 105, and so to hold the pin firmly. Lowering of the support 45 then causes the roller 102 to traverse the arms 30 and 31 and the extended groove 26 thus turning the shafts 84 and the support 45 through 180 degrees to set the pins on spots 21 on the bed of the alley. The suction is released by a tap 106 on the motor 105 and the pins are released while the support rises, the roller traversing the arms 31 and 33 to right the support 45.' Afer some of the pins have been knocked, down, the support descends, the roller 102 remaining in the groove 26 so that the frame 59<1> with large groups 74 of suction caps similar to 66, but smaller, picks up the standing pins, lifts them while the bed is rocked and then deposits them on the identical spots on which they stood. This process may be repeated. after which the support 45 rises, the roller passing through the gate 42. to close the straight groove. The pressure may be released automatically as the pins touch' the bed of the alley by a valve lever on the support engaging a pin on the guide 26. A device for returning the ball consists of an arm 120 with a suction cap 121 'controlled by levers 126, 125<1> and a runway 24.
Patent GB-896636-A (GB)
Title: Conditioner for pulverulent material
IPC: B22C5/04
Filed: 1958-06-25
Abstract: 896,636. Conditioning granular material. PEKAY MACHINE & ENGINEERING CO. Inc. June 25, 1958 [July 1, 1957], No. 20455/58. Class 59. In a system comprising a moving endless conveyer belt 12 above which are disposed agitator or cutter stages 14, 15 and apparatus 30 for conditioning granular material transported on the belt 12, the apparatus 30 comprises a rockably mounted muller drum 32 supported on a shaft 34, the drum 32 being enclosed by a pair of side walls 48 each having a slot 49 the lower end of which forms a seat for an end of the shaft 34 which protrudes through the slots, the arrangement enabling the drum 32 and shaft 34 to be removed as a unit from the walls 48. The drum 32 and shaft 34 are carried in a frame 35 secured to a pair of pivotally-mounted rocker arms 36 each having secured thereto an upwardly-open bracket 41 providing a ledge 42 to which is removably secured a bearing block 43 in which an end of the shaft 34 is journalled. The drum 32 is driven from an electric motor 44 mounted on the frame 35. The upper edges of the walls 48 support a rubber baffle member 55. The drum 32 is provided with scraper means comprising a blade 63 secured to the lower ends of a pair of spaced plates 61 secured to the frame 35. Canadian Specification 521,889 and U.S.A. Specification 2,610,373 are referred to.
Patent GB-1260482-A (GB)
Title: Improvements in or relating to textile machinery
Inventor: GOTTLIEB NORBERT
IPC: D04B27/00
Filed: 1968-05-01
Abstract: 1,260,482. Feeding webs. JEBSEY-KAPWOOD Ltd. 10 April, 1969 [1 May, 1968], No. 20546/68. Heading B8R. [Also in Divisions Dl-D2 and F2]  A brake for a beam on which yarn is wound, comprises a strap 3 bearing against the beam flange 4, and whose tension is controlled by a weight 24 movable automatically along a pivoted lever 15. As yarn is unwound an arm 25 bearing against the beam turns a segment gear 34 which rotates a pinion 35. A slide 19 carrying the weight is moved by the pinion via the chain 38 and spring 47, or via a rack fixed to the weight.
Patent GB-485428-A (GB)
Title: Improvements in or relating to electron discharge tube amplifiers
IPC: H03F3/54
Filed: 1937-07-26
Abstract: 485,428. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 26, 1937, No. 20645. Convention date, July 25, 1936. [Classes 39 (i) and 40 (v)] A micro-wave amplifier for radio reception comprises a magnetron or electronic oscillator with the incoming wave applied to a tunable circuit associated with the oscillator electrodes, amplified output being taken from a circuit coupled to said tunable circuit. When a magnetron receiver is employed, the aerial 17 is slidable along the Lecher wires 15 to produce resonance, the wires 15 being connected to the anode sections 7. An output circuit 25 is coupled to the Lecher wires 15. Anode voltage is supplied from a source 19 through a choke 21, and end plates 9 in the magnetron are also held at positive voltage by the source 19. In operation, the magnetic field of the coil 11 is adjusted to give an electronic period equal to that of the received wave. The direct anode current is then given a small value by adjustment of the anode voltage, the end-plate voltage, or the cathode emission. Impact of received waves on the aerial causes an increase or decrease of oscillatory current in the output circuit 25. In a modification, Fig. 2 (not shown), the magnetic field coil 11 is omitted the anode sections are at low positive or negative voltage, and a positive grid is situated between the anodes and the cathode, the valve operating as an electronic oscillator with retarding electrostatic field. Specification 457,721 is referred to.
Patent GB-239691-A (GB)
Title: Improvements in landaulette and like head fittings for motor vehicles
IPC: B62D29/02
Filed: 1924-09-02
Abstract: 239,691. Bunn, C. W. Sept. 2, 1924. Hoods; opening tops.-The forward end of the cantrail 2 of a landaulette head is fitted with a tongue 5 which engages with a socket 15 on the forward pillar and, by means of coacting inclined surfaces 8, 16, draws the two parts together when the rail is pressed down. The parts are held in place by a spring bolt 17.
Patent GB-234335-A (GB)
Title: Improvements in loading coil cases
IPC: H02G15/12
Filed: 1924-09-03
Abstract: 234,335. Western Electric Co., Ltd., (Western Electric Co., Inc.). Sept. 3, 1924. Addition to 153,995. Inductances.-A loading unit for a telephone system comprises a casing divided into magnetic shielded compartments containing separate groups of coils and their connections. The invention is particularly applicable to four-line repeater circuits employing separate lines for transmitting signals in opposite directions; any coupling between the loading coils of the two lines gives rise to excessive cross-talk. The apparatus shown comprises a casing 3 divided by partitions 6, 7 into compartments in each of which is mounted a spindle 4 on which loading coils are assembled. The shaded parts of the partitions 7 are extended above the others so as to divide the whole case into two main compartments 11, 12, each containing loading coils of lines transmitting in one direction only forming groups A, B respectively. In some cases loading coils of group A may be mounted in the lower part of the central space 13 and the corresponding coils of group B in the upper part. the two sets being separeated by an earthed washer. The cable stub comprising a shielded group of wires 15 surrounded by a group 14 enters the casing at the top of the compartment 11. The wires 14 are connected to the appropriate coils of group A and the wires 15 shielded by metallic tape 16 are led into the compartment 12 through a hole 8 in the partition, and connected to group B. The leads 17 to the group A coils in compartment 13 are led through insulated bushings 19 placed in a slot in the partition and are run down on the side opposite to that on which the B group connections are run.
Patent GB-479084-A (GB)
Title: Improvements relating to the connection between ceramic bodies and metals
IPC: H01J5/32
Filed: 1936-07-27
Abstract: Alloys for fusing between metal and ceramic bodies to unite the bodies have compositions as follows: (1) 65 per cent of silver, 25 per cent of copper, and 10 per cent of iron; (2) 75-80 per cent of silver and 25-20 per cent of copper; (3) 80 per cent of copper, 15 per cent of silver, and 5 per cent of beryllium; (4) 2-25 per cent of cadmium, the balance being silver, or silver and copper, or silver, copper, and iron.  The constituents of the alloys may be melted together in vacuo.
Patent GB-121488-A (GB)
Title: Improvements in or relating to Automatic Feed Governors for Steam Boilers.
Inventor: MOEGLIN LAURENT
IPC: F22D5/14
Filed: 1918-12-14
Abstract: 121,488. Moeglin, L. Oct. 23, 1917, [Convention date]. Feed-water, controlling. - The feed valve g is actuated by the expansion and contraction of a corrugated copper tube b enclosed in a cast iron ribbed tube a and so connected to the boiler by pipes k, j that it is filled either with water or steam according to whether the boiler water level is above or below the normal. When the level is above the end of the pipe k, the copper tube is filled with steam, and the expansion of the tube opens the feed valve. When the level is above the end of the pipe, water circulates up the pipe, through the tube, and back into the boiler through the pipe j. The tube may be connected to the valve stem through levers instead of being connected directly, as shown. The valve may be independently actuated by a handle p.