baber/WOPTO huggingface dataset:
Patent GB-760435-A (GB)
Title: A high-voltage isolating switch
IPC: H02B5/02
Filed: 1954-06-15
Abstract: 760.435. Air-break switches. LICENTIA PATENT-VERWALTUNGS-GES. June 15, 1954 [June 17, 1953], No. 17539/54. Class 38(5) In a high voltage isolating switch having at least two stationary contacts 14, 15 fastened to and supported by an overhead line 12 or bus-bar and two movable contacts 6, 7, each movable contact is carried at the free end of one arm of a bell-crank lever 10 or 11 which is mounted pivotally in a carrier 3 which may be moved upwards for closing the switch, each contactcarrying arm is biased towards the carrier 3 so that, during closing, the movable contacts, after contacting the overhead line, are caused to slide along the line whereby the levers 10, 11 are deflected against the biasing face, and locking means are provided which co-act with the other arm of each bell-crank lever so as to lock the levers when the switch is closed. An actuating member 1 is secured to rod 2 slidable in carrier 3 which is subjected to the action of spring 4. The contacts 6, 7 are urged together by springs 8, 9 (Fig. 3, not shown). In the "off" position the free end of lever arms 10, 11 rest on the head of rod 2. When the switch is raised the contacts 6, 7 move apart, the spring 4 is compressed by the weight of the conductor and the rod 2 rises in carrier 3 to lock the levers 10, 11. Contacts 14, 15 may be resiliently mounted by means of springs 17 in a tubular frame 16 carried by the conductor 12.
Patent GB-334297-A (GB)
Title: Improvements in or relating to machines for distributing finely divided material on road surfaces and for similar purposes
IPC: E01C19/20
Filed: 1929-06-07
Abstract: 334,297. Bunce, W. J. June 7, 1929. Grit &c. distributers.-A for distributing grit or like finely divided material on roads and for similar purposes comprises a hopper or container with a perforated bottom, a slide member for opening or closing the holes, a rotary agitator, a ratchet device for putting the agitator shaft in and out of driving connection with the travelling wheels, and a wire net or other distributer below the perforated bottom. The hopper a has inclined sides and ends and cross stays f, and is carried by a wheeled frame g adapted to be attached behind a lorry by a. draught member h. The wheels i are disc shaped and have solid rubber tyres j. The axle k traverses the hopper and is provided with one or more projection or lugs m for agitating the contents of the hopper. The axle k is driven by ratchet-and-pawl mechanism, the spring-controlled pawls being provided with handles for movement by hand. The slide s below the hopper bottom is moved by a pivoted bar u connected to a hand-lever o. Slits or perforations in the slide s register with corresponding slits or perforations in the hopper bottom in one position and close them in another. The wire screen z or other distributer may be hung by chains below the regulating-slide s.
Patent GB-439516-A (GB)
Title: Improvements in or connected with wind musical instruments
IPC: G10D9/02
Filed: 1934-06-14
Abstract: 439,516. Clarinet &c. reeds. DAVIS, B., Davis Building, Moor Street, Cambridge Circus, London. June 14, 1934, No. 17625. [Class 88 (ii)] The chamfered playing-end of a cane reed 1, for a saxophone or clarinet, is rendered more flexible by one or more triangular circular, square or diamond-shaped holes 3 or slots, covered on either or both sides by paper sheets 4.
Patent GB-829371-A (GB)
Title: Gyromagnetic resonance process analysis and control
IPC: G01R33/46
Filed: 1957-06-03
Abstract: 829,371. Electric tests. VARIAN ASSOCIATES. June 3, 1957 [June 4, 1956], No. 17634/57. Class 37. Gyromagnetic resonance apparatus is used to compare the proportions of two substances in a mixture and for giving an indication when the proportions are not correct. As described, the relative proportions of benzene and hexane in a mixture flowing through a glass conduit 11 is to be examined. The ratio of the benzene hydrogen nuclei to the hexane should be about 1 to 9. Surrounding the tube is the usual apparatus for producing resonance, comprising R.F. transmitter 16 feeding coil 15, permanent or electromagnet 17 producing a polarizing field and pick-up coil 13 detecting resonance and feeding receiver 14. A sweep generator 18 varies the strength of the polarizing field cyclically so that resonance is produced firstly with one of the components and then with the other, giving the two peaks shown in Fig. 3. Initially the output is earthed during period T1, but during period T2 the output corresponding to the first peak is amplified at 25 and integrated at 26 while during T3 the output corresponding to the larger peak is fed through attenuator 29 and amplifier 25 and is integrated at 31. The outputs of the two integrators are compared at 32, the difference signal being indicated at 34, recorded at 33 and, if it exceeds a certain value, operating an alarm 35. The individual outputs of the two integrators may be recorded at 261, 311. Automatic control system for controlling point of resonance.-To maintain the resonance peak M symmetrically placed with respect to the middle of the period T3, the period is divided into two equal portions by switches 36, 37 which connect the output of the transmitter to integrators 38, 39 alternately. An A.C. source 44 operates a switch 41 which feeds the outputs of the two integrators to a phase-detector 43 also fed with a reference signal from source 44. Difference between the two peaks produces a D.C. output of polarity depending on which is the larger and controls the field of magnet 17 to centralize the peak M or to change the frequency of transmitter 16 with the same effect. Visual comparison of resonance peaks.-To compare the peaks produced by the two constituents one is fed during period T2 through amplifier and inverter 48 to recorder 49 to produce a series of peaks below base line B (Fig. 4). During period T3 the signal is fed direct and appears above the same base line.
Patent GB-527488-A (GB)
Title: Improvements in and relating to signalling apparatus
IPC: H05B41/22
Filed: 1938-06-14
Abstract: 527,488. Metal-vapour lamps. BRITISH THOMSON-HOUSTON CO., Ltd., DAVIES, L. J., and RUFF, H. R. June 14, 1938, No. 17660. [Class 39 (i)] A lamp with a liquid cathode, a high resistance starting-electrode and a number of auxiliary anodes is used for signalling. For this purpose the lamp 10 is provided with a number of intermediate electrodes 7, 8, 9 connected to the anode through resistances 19, 20, 21. Current is supplied to the starting-electrode 9 through a discharge-device 17 to the grid of which a blocking voltage is applied from a source 22 ; when a switch 18 is closed the potential of the grid is raised sufficiently to allow a starting current to pass to the electrode 4. To allow the lamp to start readily at high power it may be allowed to heat freely, but cooled by an air blower when it reaches a certain temperature. Two electrodes, or two separate lamps, may be arranged to use both half-cycles of the supply.
Patent GB-1119484-A (GB)
Title: Article with self-locking screw thread and method of manufacture thereof
IPC: F16B39/284
Filed: 1966-04-22
Abstract: 1,119,484. Making bolts. DEUTSCH FASTENER CORP. 22 April, 1966 [29 April, 1965], No. 17669/66. Heading B3A. [Also in Division F2] A screw-threaded article is made self-locking by deforming a portion of the thread to produce a section 20 that is of increased radius. A hole 16 is drilled eccentric to the axis with a counterbore at its open end, and a tool 23, e.g. a steel ball, of greater diameter than the hole 16 is forced into a shank 22 to deform an area of the threads spaced from one end by about two full threads. The ball may be left in the hole. The tool may comprise a shank having a spherical, tapered, or conical leading end.
Patent GB-1344703-A (GB)
Title: Method for determination of the planar distribution of low- energy beta nuclides or other radionuclides for tracer experiments
IPC: G01T1/29
Filed: 1971-05-27
Abstract: 1344703 Recording particle distribution CESKOSLOVENSKA AKADEMIE VED 27 May 1971 [8 July 1970] 17672/71 Heading G6P In a system for determining the planar distribution of beta-emitting nuclides, e.g. tritium or carbon-14, in histological sections or gel electrophoresis, the specimen is placed on a displaceable board and the pattern of the beta paths is determined by a silicon-lithium detector, vertically adjustable. The detector may have an apertured screen defining the width of the particle beam. Colour recording of the beta emission pattern is employed, the different colours representing impulse rates. The presence of different nuclides in the same specimen is effected by the use of an amplitude discriminator or a number of separate channels.
Patent GB-1302992-A (GB)
IPC: B22C9/06
Filed: 1971-05-27
Abstract: 1302992 Casting-machines E S STEBAKOV A I LEONTIEV P M SIMPURA I I KOZLOV E B GLOTOV A S MUSIYACHENKO V A ANTONOV D A VSHIVKOV S I PODGORNY V P ZUBKOV V N MILOV N V NAVROTSKY L A NIKOLSKY 27 May 1971 [27 May 1970] 17681/71 Heading B3F A machine for casting thin-walled bodies comprises a fixed mould half 7 and a movable mould half 6 secured to and rotatable with a shaft 3, the shaft 3 having a longitudinal recess 9 and being rotatable between a first position in which the mould halves are relatively remote from one another to a second position in which the two mould halves are relatively close to one another. The metal is poured when the shaft is in its said first position, side walls 8 preventing the metal from running out, and the shaft 3 is then rotated by a bar 5 so as to move the mould half 6 towards the mould half 7, thus squeezing the metal upwards to fill the mould. After opening the mould the cast article is ejected by rods 14 which are thrust against the casting by piston-rods 11 acting on a plate 13 which in turn engages the ends of the rods 14. The mould halves and shaft 3 are heated before the metal is poured.
Patent GB-377790-A (GB)
Title: Improvements in or relating to endless track vehicles
IPC: B62D55/065
Filed: 1931-06-18
Abstract: 377,790. Endless-track vehicles. MARTINAGE, L., 46, Rue de Courcelles, Paris. June 18, 1931, No. 17740. Convention date, Oct. 20, 1930. [Class 79 (i).] In an endless track vehicle of the kind comprising a plurality of separate endless-tracks carried by frames centrally pivoted at each side of the body of the vehicle, the separate endless-tracks on each side are so arranged as to overlap each other. In the construction shown endless-tracks 1 are mounted on track frames 9 connected by springs 2 to axles 3 mounted on the vehicle body 7, so that each track can rock independently about its own axle 3 as shown in Fig. 3 in which the front track is shown mounting an obstacle. The rocking movement of each.track relatively to the body is limited by means of stops 10 on the spring seats adapted to engage stops 16 .on the body. The engine 24 drives the tracks through gear-boxes 12 and the gearing shown. Steering may be effected by any suitable known device such as differential gearing or clutches, which will allow the driver to stop the tracks on one side independently of those on the other. The tracks may be those described in Specification 368,628 which, in combination with suitably disposed bearer rollers 1<1>, form rigid tracks on the ground.
Patent GB-217445-A (GB)
Title: Improvements in cigarette, cigar, match and similar cases
IPC: A24F15/12
Filed: 1923-07-09
Abstract: 217,445. Warden, H. July 9, 1923. Latches, sliding.-A spring-pressed sliding rod 8 with bevelled head 9 is mounted in guides 6, 7 secured to the bottom half 2 of a cigarette &c. case to engage a bevelled projection 10 on the top half 1 of the case. The rod is released by pressing upwardly a sliding strip 12 of T- or L- shape received in a cut-away portion of the case and connected to a short length of tubing 11 fixed to the rod. The strip 12 may have a thumb piece to facilitate opening, but is preferably flush with the surface of the case.
Patent GB-1570194-A (GB)
Title: Method and apparatus for photometric analysis of sample fluid
IPC: G01N21/01
Filed: 1976-06-30
Abstract: Method and apparatus for photometric analysis of sample fluids for a constituent of interest. There is provided a method of sample analysis comprising the steps of locating the sample fluid in a cell having an axis, directing a ray of light through the sample and the sample-cell interface at an angle to said axis, totally internally reflecting said light ray passed through the interface to be redirected across said sample, and detecting the redirected light ray passed through the sample.
Patent GB-396919-A (GB)
Title: Improvements in or relating to a method and means for concentrating preferably with simultaneous compounding aqueous dispersions of or containing rubber or the like materials
IPC: C08C1/12
Filed: 1932-06-24
Abstract: Aqueous dispersions of rubber and the like are concentrated, preferably with simultaneous compounding, by evaporation in a vessel which is provided with means for producing an agitation within the liquid, and waves on the surface which cause a spreading of films of the liquid on the walls of the vessel.  The vessel is preferably circular with a hemispherical bottom, and may be heated externally or internally.  The movement of the liquid may be effected by an immersed stirrer rotating about its own axis, and at the same time-rotating as a whole in the vessel.  It may also be effected by a paddle working like a pendulum, and if desired rotating about its own axis.  The surface of the paddle may be maintained parallel to one plane.ALSO:Aqueous dispersions of rubber and the like are concentrated, preferably with simultaneous compounding, by evaporation in a vessel which is provided with means for producing an agitation within the liquid, and waves on the surface which cause a spreading of films of the liquid on the walls of the vessel.  The vessel is preferably circular with a hemispherical bottom, and may be heated externally or internally.  The movement of the liquid may be effected by an immersed stirrer rotating about its own axis and at the same time rotating as a whole in the vessel. It may also be effected by a paddle working like a pendulum, and, if desired, rotating about its own axis.  The surface of the paddle may be maintained continuously parallel to one plane.
Patent GB-255478-A (GB)
Title: Method of winding electric transformer and the like coils
IPC: H01F27/28
Filed: 1926-07-16
Abstract: 255,478. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). July 18, 1925, [Convention date]. Transformers. - Relates to disc windings for transformers and the like in which the turns are arranged as described in Specification 254,317 and in which each turn comprises several conductors in parallel, and consists in crossing over the conductors at intervals along the coil to prevent unequal loading of the conductors due to unequal turn diameters. Where two parallel conductors b, c are employed, their positions are interchanged mid-way of the length of the coil, or in the case of a tapped winding, mid-way of each section, and where n conductors employed at least n-1 interchanges are effected.
Patent GB-860268-A (GB)
Title: Improvements in and relating to inflation valves for expansible enclosures
IPC: F16K15/20
Filed: 1957-06-05
Abstract: 860,268. Valves. REGIE NATIONALE DES USINES RENAULT. June 5, 1957 [June 28, 1956; Jan. 31, 1957], No. 17913/57. Class 135. An inflation valve for a pressure chamber, e.g. a pneumatic tyre, comprises a tubular body 4 of rubber or plastic material with an orifice 12 formed without removing any of the material, the orifice being distended and opened by the inflating air pressure during inflation of the chamber, while being tightly closed by air pressure in the chamber when the inflating pressure is removed. A plug 15 is fitted and secured by ribs 16 engaging in grooves 16 in the body 4. For inflation purposes a tube is fitted and provided with engaging means similar to the plug 15. A number of reinforcements 7 depend from the parts forming the orifice into the interior of the body 4 and abut the internal walls of the latter when the orifice is closed. In another embodiment the valve body and orifice are separate and are mounted on either side of the chamber wall with a communicating hole in the wall to permit the closure member to seat on the top of the body.
Patent GB-1264035-A (GB)
Title: Polymeric photoconductive materials
IPC: C08F24/00
Filed: 1969-04-08
Abstract: 1,264,035. N-vinylindole copolymers. INTERNATIONAL BUSINESS MACHINES CORP. 8 April, 1969 [8 April, 1968], No. 17993/69. Heading C3P. [Also in Division H1] New photoconductive copolymers of N-vinylindole have the formula wherein X is a vinyl residue which includes an aryl or heterocyclic ring (where vinyl residue is defined as a divalent monomer residue providing two saturated carbon atoms to the basic carbon chain of the polymer), m and n are each at least one and m+n is greater than 10. Examples describe the copolymerization of N-vinylindole with N-vinylcarbazole, styrene, N - vinyl - 2 - methylindole, 9 - vinylanthracene, 4- vinyl - dibenzofuran, 4 - vinyldibenzothiophene, indole, N-methylindole, indene, coumarin and maleic anhydride with catalysts such as benzoyl peroxide and azobisisobutyronitrile or by mixing the monomers under vacuum and heating.
Patent GB-965337-A (GB)
Title: Cleaning device for fluid filter
IPC: B01D29/11
Filed: 1962-05-10
Abstract: 965,337. Backwashing of filters. J. MULLER. May 10, 1962 [May 12, 1961], No. 18007/62. Heading B1D. If one of two edge filter elements 1, 2, Fig. 5, (e.g. 1), becomes clogged, inlet pressure forces a piston 40 to the right until a spring-loaded toggle lever 47 turns a valve about its spindle 30, and, by chain wheels 29, 27 and a chain, a lower valve. In these positions unfiltered liquid continues to pass from inlet 14 to chamber 8 inwards through element 2 to chamber 10 and to an outlet (not shown), whilst unfiltered liquid now gains access to the lower end of a cylinder 16, raising a piston 17 to force previously-collected filtrate into chamber 9, outwards through element 1 and to discharge through a tube 26. Rods 50, 51 are raised by the piston near the end of its upward stroke to restore the valves to normal position, where liquid flows through both elements in parallel. In Figs. 1 to 4 (not shown) the operation of the valves is not automatic. In Fig. 7 a pipe 75 communicates with the outlet chamber of two filter elements and on clogging of them a bellows 73 is allowed to expand, thereby releasing a rod 74 from engagement with a lever 77, 62, pivoted at 55 to the casing. The lever raises valve 66 to close inlet 68 and permit the region around the filter elements to communicate via opening 67 with a discharge duct 72. Thereupon the helical spring shown on the right raises a piston, and with it its hollow piston rod, to force filtrate previously stored above the piston outwards through the filter elements and to duct 72. Near the end of its travel the piston also raises an inner member 59 which pivots a bar 57 about the pivot 55 and hence by a toggle spring 63 restores lever 77, 62 to the position shown, where it is re-engaged by rod 74. The piston is then depressed once more in readiness for the next backwashing operation. In Fig. 8 (not shown) the bellows is replaced by a differential piston and in Fig. 6 (not shown) by a manually-operable spring trigger. In Fig. 9 filtrate flows during filtration through a small hole 95 in a non-return valve 96 to force a piston 92 very slowly downwards. At a certain position bar 87 switches valve 66 by means of toggle spring 88 and lever 86 to initiate backwashing, whereupon piston 92 is raised by spring 94 and valve 96 opens. Eventually the relative positions of bar 87, spring 88 and lever 86 are as shown, where valve 66 is in its normal position.
Patent GB-905380-A (GB)
Title: Method and apparatus for testing magnetic tape
Inventor: NOBLE RICHARD
IPC: G06F11/24
Filed: 1960-05-23
Abstract: 905,380. Testing magnetic tape. M.S.S. RECORDING CO. Ltd. May 23, 1961 [May 23, 1960], No. 18113/60. Class 37. In a testing arrangement a signal in the form of uniform pulses at regular intervals is recorded, and reproduced, and the number of pulses which are not reproduced at all or do not exceed a predetermined value are counted for a number of predetermined values, the log of the number counted as compared with the log of the signal value for a constant wavelength being used as a criterion. The signal may be recorded on a singletrack or on a plurality of tracks. The signals picked up in the heads T 1 -T 5  (Prov.) are amplified and applied to level discriminators D 1 -D 5 , the reference levels of which are modified by the output of a head 6 from which is developed a signal proportional to the mean signal level. Output pulses shaped by shapers S 1 -S 5 , and one-shot multivibrators V 1 -V 5 , are applied to AND gates G 1 -G 5  together with timing pulses at the original frequency from an OR gate connected to all the reproduction circuits, and a tape-presence timing pulse from a photo-electrically controlled circuit PD1, PD2 and FF. In the presence of a tape, i.e. with a pulse from multivibrator F, F, the respective AND gate produces an output only when the direct output from the respective multivibrator V 1 -V 5  is missing. The output pulses are shaped and then counted in decade counters C. The photo-electric control circuit is arranged also to operate transport mechanism switching circuits. The selection and grading of tapes with reference to a graph is also described.
Patent GB-320853-A (GB)
Title: Improvements relating to the automatic coke-charging of gas generators and the like
IPC: C10J3/30
Filed: 1928-06-22
Abstract: 320,853. Humphreys & Glasgow, Ltd., and Stelfox, J. C. June 22, 1928. I I Shoots. - Apparatus for feeding measured quantities of coke to water-gas generators from a bulb container 1, comprises a charging hopper 3-connected to the container 1 by a shoot 2 which communicates with the bunker through a restricted opening x and is inclined at such an angle that, when the amount of coke corresponding to a charge has passed a predetermined point, the coke comes to rest, leaving only a relatively thin layer to be cut through, jammed, or displaced by the device employed to prevent further flow of material. The hopper 3 is fitted with a discharging bell 6 and a sliding inlet valve 4 to which may be pivoted a hinged guard-plate 5 forming the lower part of the base of the shoot 2. In operation, the bell 6 is closed and the valve 4 opened to allow passage of coke from the bunker 1 to the hopper 3 ; when the latter is substantially full, the coke, owing to the restricted aperture x and the inclination of the shoot, comes to rest, the thin laver remaining in the shoot offering little resistance to the closing of the valve 4. The charge in the hopper 3 is then dumped into the generator. In a modified construction, the hopper 3 is of greater capacity than the required charge and an additional valve 5<a>, preferably of the kind described in Specification 329,110, is arranged near the upper end of' the shoot and interconnected, as shown, with the bell 6. In this form. when the valve 4 is closed and the bell 6 opened to deliver a charge to the generator, the valve 5a is also opened and coke flows into the shoot 2 until bv reason of its inclination and the restricted aperture x, it comes to rest leaving at the upper end only a thin layer which is readily jammed to prevent further flow when the valve 5<a> is closed by the closing of the bell 6. The slide 4 is now opened and the charge contained in the shoot 2 passes into the hopper 3: owing to the greater capacity of the latter the valve 4 is quite free and may be easily closed. In a further modification, the valve 5a is in the form of a rotary drum provided with spikes adapted to crush lumps of fuel. The magnitude of a charge can be varied by adjusting a slide controlling the opening x.