baber/WOPTO huggingface dataset:
Patent GB-310490-A (GB)
Title: Improvements relating to sound reproducing apparatus or loud speakers
IPC: H04R1/28
Filed: 1928-07-10
Abstract: 310,490. Soc. des Ateliers de Montage et d'Ebenisterie. April 28, 1928, [Convention date]. Loud-speakers.-In a sound-reproducing device or loud-speaker of the kind in which a diaphragm a, which may be conical, as shown, or of any desired shape, hermetically and resiliently closes one end c of a baffle tube b, the length of which is at least one-and-ahalf times the mean diameter of the diaphragm, the other end e of the tube is open. The space f within the tube may be used to house any accessory or operating parts for the loud-speaker. The tube is formed of, or lined with, a material which has little mechanical resonance or is a bad conductor of sound. The Specification as open to inspection under Sect. 91 (3) (a) states also that the end c of the tube may be closed. This subject-matter does not appear in the Specification as accepted.
Patent GB-459724-A (GB)
Title: Improvements in or relating to plate-racks
IPC: A47J47/16
Filed: 1935-07-13
Abstract: 459,724. Plate racks. WORTLEY, G. W., Gothic Works, Falkirk, and MAIN, Ltd., R. & A., 48, Grosvenor Gardens, Westminster. July 13, 1935, No. 20086. [Class 28 (ii)] A plate rack of the kind having rearwardly extending arms 14 which are pivoted to a stationary structure, the plate support being retained in a horizontal position by the arms 14 engaging under stationary abutments, is characterized in that the pivotal connections or the abutments are adjustable to vary the position of rest of the arms. As shown, the pivotal connections each comprise an eccentric bush 18 revolubly adjustable in lugs 17 on the stationary cross-member 15 which is secured to uprights 16. The pivot pin 24 is formed on the end of a screw 23 threaded into the bush 18 which is circumferentially grooved at 21 to receive a set-screw 22.
Patent GB-873664-A (GB)
Title: Improvements in moulding of products in continuous lengths
Inventor: AUSTIN CHRISTOPHER FREDERIC
IPC: B29C48/12
Filed: 1959-06-12
Abstract: 873,664. Moulding zip-fastener elements &c. LIGHTNING FASTENERS Ltd. May 18, 1960 [June 12, 1959], No. 20173/59. Class 87(2). Apparatus for moulding continuous toothed strip, e.g. part of a zip-fastener, comprises a stationary feeding element 7 provided with a passage 8 for the injection of plastic material such as nylon therethrough, and a rotatable member 1 having a succession of mould cavities 3 connected by a groove 4; member 1 being so disposed in contact with element 7 that when rotated the cavities are successively aligned with passage 8. Element 7 may carry a rib to engage in the groove to prevent injection before the member 1 is correctly aligned with passages 8 and the element 1 may have its lower face designed to produce a rib on the strip. Element 7 extends over several mould cavities and in Fig. 2, (not shown), is applied over the cavities in the curved periphery of the rotatable member.
Patent GB-850132-A (GB)
Title: Apparatus for sampling a fluid and injecting it into a gas chromatography column
Inventor: MUNDAY CHARLES WALTER
IPC: G01N30/20
Filed: 1958-06-24
Abstract: <PICT:0850132/III/1> Apparatus for transferring a sample of a fluid flowing in a pipe 8 to a pipe 12 in which eluting gas flows to a gas chromatography column 13 comprises an apertured plunger 1 slidable in a tube 2 interconnecting the two pipes.  When the plunger is at one end of the tube, the diagonal passage 7 connects pipe 3 to a pipe 9 but, when the plunger is moved to the other end of the tube by a handle 4 or by electric, hydraulic or pneumatic means, the passage connects the pipe 12 through a by-pass 15 with a pipe 11 and the sample contained in the passage is injected by the gas stream into the column 13.  The tube 2 and the plunger are made of quartz ground on the interior and exterior surfaces respectively and their relative rotation is prevented by a rib 5 and groove 6.  A stopcock 10 is fitted in the pipe 8.
Patent GB-391096-A (GB)
Title: Improvements in machines for binding straw and the like
IPC: A01F15/00
Filed: 1931-07-14
Abstract: 391,096. Binding-machines. WELGER, O., (trading as WELGER, GEB.), 9, Goslarschestrasse, Wolfenb³ttel, Brunswick, Germany. July 14, 1931, No. 20205. Convention date, July 16, 1930. Void [Published under Sect. 91 of the Acts]. [Class 6(iii).] In order to enable a binding-machine to deal with short straw the packer 1 is formed as a fork with several prongs 2, 3, lying across the packing direction. These prongs also may be situated in different transverse planes. The straw is delivered into the hopper 5 of the binder by sector-shaped feeders 4 that prevent the straw getting behind them. When designed for dealing with short straw the binder 9 is narrower than usual and it may be built on or attached to a reaping-machine or thrashing-machine.
Patent GB-478371-A (GB)
Title: Improvements in electric cables
IPC: H01B11/18
Filed: 1936-07-22
Abstract: 478,371. Cables. NORDDEUTSCHE KABELWERKE AKT.-GES. July 22, 1936, Nos. 20329, 20330, 20331, 20332, and 20333. Convention dates, July 22, 1935, Dec. 21, 1935, Dec. 21, 1935, March 24, 1936, and May 18, 1936. [Class 36] An air-space cable comprises a central conductor, an outer covering spaced from the central conductor and comprising helical windings, and helically wound threads supporting the conductor relatively to the outer covering and disposed between the convolutions of said windings. The covering may consist of wires or tapes A, B, C, the wires or tapes A and B being wound with the same pitch and in the same direction but staggered and the wire or tape C being wound in the opposite direction: D is the supporting thread. In other forms, two wires, wound in the same direction, are used in conjunction with an oppositely wound tape ; two oppositely wound tapes are employed, one tape being broader than the other ; two or more tapes, wound in the same direction, are used in conjunction with an oppositely wound tape, two or more supporting threads being employed. The outer covering may form the outer conductor or it may be of insulating material : in the former case, the wires may be held in position by paper bands ; in the latter case, a return conductor may be provided in the form of an adherent coating, of a metal tape winding, of a lead sheath or of a metal tape winding and a lead sheath.
Patent GB-229209-A (GB)
Title: Appliances for playing a board game simulating golf
IPC: A63F3/00
Filed: 1924-08-29
Abstract: 229,209. Begbie, H. H. G. Aug. 29,. 1924. Board games. - Appliances for use in playing a game simulating golf comprise a board divided into squares and marked with hazards to represent a golf course, each " hole " of the course consisting of a rectangular assemblage of squares commencing with squares bearing the letters A - - - h and terminating in anumber of squares marked with concentric circles 3 representing the putting green in combination with four dice each marked with the name of a club and a number on each side, one die marked on two sides with the words " top " and " duff " and on the other sides with numbers, one die marked with the letters A - - F one on each side, and three dice marked on some sides with dots and letters and having the other sides marked with letters only, and discs representing golf balls. The columns of figures shown give the distances of any row of squares from the " hole " 2 and from the " teeing " squares A - - F. In playing the game the moves are determined by the throw of the dice and according to the rules.
Patent GB-660333-A (GB)
Title: Method of locking tubular metal ladder rungs and a tool adapted for this purpose
IPC: E06C7/08
Filed: 1949-08-05
Abstract: 660,333. Making-ladders. AKTIEBOLAGET WIKSTRAND & BERG WIBE. Aug. 5, 1949, No. 20422/49. Classes 83 (ii) and 83 (iv). [Also in Groups X and XXIII] -Tube expanders.- In a metal ladder, a method of locking tubular ladder rungs within tubular side members, in which the surround of the outer hole 4 of each pair of rungreceiving holes in the side rail 1 is serrated or otherwise deformed and in which the ends of the rungs 2 are swaged over to grip the serrations and in which a shoulder 5 around the rung is arranged to bear against the remote face of the rim around the inner hole 3. The serrations or deformations may be formed on the outer surface as at 7 or on the inner surface as in Figs. 4 and 5, not shown, or on the edge surface, and may be made by means of a chisel-edged tool which is inserted within the hole 4, (see Group XXIII). The edge of the hole 3 may also be serrated or otherwise deformed.
Patent GB-148513-A (GB)
Title: Improvements in or relating to printing machines
IPC: B41F3/40
Filed: 1920-07-10
Abstract: 148,513. Bernaudin, M. H. March 26, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Cylinder machines; gripper mechanism. - An oseillating-cylinder printing-machine is provided with means by which the sheets are printed on one side during the forward movement of the cylinder and on the other side during the backward movement. The sheet is taken from the feed board b by grippers f on the cylinder a, and after being printed on one side is taken by a gripper cylinder d and deposited printed side up on a second feed board c. On the return movement of the cylinder a the sheet is taken by grippers g and its reverse side printed, after which the sheet is delivered by a stripper i<1>, guide i<6>, roller i'. guide i<8>, and band i<9>. The grippers g are mounted on a block g<1> adjustable circumferentially of the cylinder to suit sheets of different size. The block g<1> also carries the winding roller g<3> of the impression blanket. The grippers g and f and the grippers d' of the cylinder d are actuated in the usual manner. Rollers d<2> coact with the cylinder d to forward the sheet after the grippers d<1> are opened, and the sheet is stripped from the cylinder d 'by a flyer d<6> and is fed down the feed board c by bands c<1> driven intermittingly by rollers d<3> carried by a lever d<4> operated by a cam d<5> on the cylinder a. The feed board c is curved to provide space beneath for inking-apparatus for inking the forme on its return stroke. The delivery stripper i<1> is actuated by a lever i' operated by a cam groove g' in the gripper block g<1>.
Patent GB-390693-A (GB)
Title: Improvements relating to electric heating of kettles, saucepans or the like
IPC: H05B3/80
Filed: 1932-09-06
Abstract: 390,693. Kettle &c. lids. ALPHONSE, L. ST., 26, Watford Way, Hendon, London. Sept. 6, 1932, No. 20536. [Class 66.] A vessel lid 10 adapted to carry an electric immersion heater 19 is provided with a convex under surface 11 and means 13 adjustable radially to fit various sizes of apertures. In a modification a lid is provided with a flange of variable diameter formed by a strip carried by clips arranged in slots in the lid. In a further modification arms pivoted on the underside of a lid carry arcuate strips forming a discontinuous flange.
Patent GB-357663-A (GB)
Title: Improvements in or relating to tap changing devices for electric transformers
IPC: H01F29/04
Filed: 1930-07-07
Abstract: 357,663. Transformers. ALLEN WEST & CO., Ltd., Lewes Road, Brighton, and BERGMANN, F., 36, Mansfield Road, Hove. July 7, 1930, No. 20574. [Class 38 (ii).] In a transformer regulated by tapping switches A<1> .. D<1> associated with a centre-tapped a u t o - transformer coil 2 to enable voltage values intermediate those of adjacent tappings to be obtained, an additional switch E is provided whereby, during the regulating stages in which only one end of the coil 2 is connected to the main transformer, the part of the coil between that end and the centre point is short-circuited thus relieving the coil of the full load current and at the same time leaving only half of the voltage of the coil to be dealt with by the switch. The necessary switching sequence may be obtained by using contactor type switches operated by cams on a common shaft, by a drum controller, Fig. 3 (not shown), or by a straight line face plate type of switch, Fig. 4 (not shown). In the case of small transformers of low voltage, a tapped resistance may be substituted for the autotransformer 2.
Patent GB-1026646-A (GB)
Title: Slide projectors
Inventor: ARTLETT-COE JOHN
IPC: G03B23/04
Filed: 1963-05-24
Abstract: 1,026,646. Magazine slide changing apparatus. ALDIS BROS., Ltd. April 2,1964 [May 24, 1963], ], No. 20772/63. Heading G2J. In manual magazine indexing apparatus for use with a slide projector, magazine 10 has a rack on its underside which is drivingly engaged by pinion 13 projecting up through an aperture in the magazine guide rail 12, the pinion 13 being rotated incrementally by the engagement of a co-axially mounted pinion by a spring pawl 19 carried on the manually driven slide changing carriage 16. On the return stroke springs loaded detent 29 prevents rotation of the pinion teeth as pawl 19 rides over them. The magazine may be of moulded plastics.
Patent GB-995618-A (GB)
Title: Magnetic resonance apparatus and method
Inventor: TURNER DAVID WARREN
IPC: G01R33/36
Filed: 1961-06-08
Abstract: 995, 618. Gyromagnetic resonance apparatus. PERKIN-ELMER Ltd. May 22,1962 [June 8,19611, No. 20805/61. Heading G1N. The r.f. signal applied to matter undergoing a gyromagnetic resonance test is modulated by a second signal and one of the sidebands produced is substantially suppressed. Either the r.f. signal or the remaining sideband signal destroys spin-spin coupling between two groups of particles in the sample and the other signal causes resonance of one of the groups. The r.f. source 21 is connected through phase shifters 25 (+45 degrees shift) and 26 (-45 degrees shift) to four modulators 30 to 33. A.C. source 20, with 180 degrees phase shifters 35,36,provides outputs at 180 degrees,270 degrees, 0 degrees and 90 degrees which are applied to the respective modulators. The outputs are connected in pairs and finally combined in antiphase at 41, and it is shown that its output comprises only the upper sideband. This is combined with an attenuated r.f. signal from source 21 and applied to coil 15. Reversal of the connections to A.C. source 20 causes only the lower sideband to be produced. The frequency of source 20 is preferably variable. The connection between source 21 and coil 15 may be omitted if the modulators are unbalanced so that they transmit a small r.f. component. The output is applied to an amplifier 9, having a crystal filter,and is displayed on an oscilloscope 5 and recorder 10. In a modification (Fig. 2, not shown) a single coil is used for input and output and the crystal filter is replaced by a phase detector. Further spin-spin couplings may be destroyed by further modulation and suppression of one of the sidebands.
Patent GB-1262956-A (GB)
Title: Device for supporting and holding open, fold-flat bags ready for filling
Inventor: WALLEY GEORGE ERNEST
IPC: B65B67/12
Filed: 1969-04-24
Abstract: 1,262,956. A device for supporting and holding open, fold-flat bags ready for filling. G. E. WALLEY. 24 April, 1969, No. 20868/69. Heading B8C. A device for supporting a plurality of foldflat containers, for instance for garbage disposal, comprises a U-shaped frame 1 each of the two prongs 2 of which has U-shaped portions 4, 3 respectively at its inner and outer ends the base of the frame having looped ends 5, 6 for the reception of fixing screws and a centre 7 shaped to accommodate the hinge of a lid, not shown, for closing the top of an open bag. In use, a plurality of fold-flat bags, made for instance of paper or plastics material and having apertures 8, are threaded over the prongs 2 and are retained, as a pack, with the apertures 8 located in the U-shaped portions 4. The foremost container is opened for use by pulling its front top edge forwards and locating the corresponding front pair of apertures 8 in the front U-shaped portions 3 so that the bag presents a rectangular opening for filling. When full the bag can be pulled forwardly off the prongs 2. The device may be free standing wall or, pillar mounted, or be manually mobile, and may be made of wire. In another construction the depressions 4, 3 may be replaced by slits.
Patent GB-927619-A (GB)
Title: Improvements in or relating to the production of organic peroxides
IPC: C07C407/00
Filed: 1960-06-14
Abstract: A method of producing solutions having a high content of organic peroxides of the formula <FORM:0927619/IV(a)/1> in which each R represents an alkyl group, Ar an aryl or substituted aryl group and X hydrogen or the group <FORM:0927619/IV(a)/2> wherein Ar and R have the meanings given above is characterised in that a solution of such an organic peroxide in the hydrocarbon from which it is formed having a peroxide content of approximately 5 to 50% by weight is first distilled in a film evaporator of the usual construction, and the head product withdrawn therefrom is rectified in an after-connected distilling column of the usual construction, there being supplied to the head of the second column fresh hydrocarbon which may possibly contain impurities, for the purpose of producing a return flow and the sump product of the distilling column flows continuously to the head of the film evaporator.  Peroxides specified include cumene-, p-cymene- and isopropylnaphthalene hydroperoxides, diisopropylbenzene mono- and/or di-hydroperoxide and dicumyl peroxide.  Examples are furnished.
Patent GB-1473034-A (GB)
Title: Burning of pulverous or granular raw materials
IPC: C04B7/43
Filed: 1975-05-16
Abstract: 1473034 Burning pulverous or granular materials F L SMIDTH & CO AS 11 May 1976 [16 May 1975] 20905/75 Heading F4B In a kiln plant comprising a kiln 1, a cooler 2 and preheater 3, raw material is fed to the plant partly through a pipe 14 leading to the preheater and partly through a pipe 8 for preheating in the cooler 2. Raw materials entering the cooler are carried by cooling air 26 in suspension counter currently to the kiln product 27 as indicated in Fig. 2. Air is drawn through the cooler by the fan 13 and raw materials pass with the air through the casing 1<SP>1</SP> (Fig. 1), and pipe 12 to unite with other raw material in the preheater 3 before passing into the kiln 1. The preheater 3 may include a calciner 4 supplied with fuel from the burner 6 and with heated cooling air from the pipe 12. Raw materials passing through the cooler may be sufficiently heated to be partially calcined before uniting in the calciner 4 with other preheated and partially calcined materials from the preheater 3. If the quantity of heated cooling air, after that taken by the preheater 3, is insufficient for the combustion of fuel in the kiln, an extra amount of atmospheric air may be supplied by a pipe 15, the air having been preheated by heat exchange in the heat exchanger 5 by exit gases from the kiln. The cooler may be of the grate type (Fig. 2) and raw materials from the pipe 29 may be blown in with air from the pipe 28 to pass in suspension above the hot kiln product. In further embodiments, the cooler may be of the rotary type and may include planetary cooling tubes (Fig. 9). Raw materials may be fed into the hot or cooler parts of the coolers or into the precooling zone of the kiln (Figs. 5-8). Raw materials may be fed to the cooler suspended in air or independently and may be made to mix directly with the kiln products and then agitated to separate them later. The apparatus may include a preliminary clinker cooling device (39), Fig. 3 (not shown), in the stationary casing.
Patent GB-598991-A (GB)
Title: Improvements in variable pitch propeller hubs
IPC: B64C11/06
Filed: 1945-08-14
Abstract: 598,991. Screw propellers. RATIE, P. P., and RATIE, R. J. Aug. 14, 1945, No. 20946. Convention date, Feb. 24. 1944. [Class 114] A variable pitch propeller hub, in which the stem of the blade 1 is journalled in the arm 3 of the hub, has a threaded sleeve 5 transmitting to the hub the centrifugal forces applied to the blade and also embracing the hub arm 3. A ball-thrust bearing 9 compensates for axial play of the blade.
Patent GB-1320814-A (GB)
Title: Cable fault detection circuit arrangements
IPC: G01R31/11
Filed: 1971-04-19
Abstract: 1320814 Measuring impedance SIEMENS AG 19 April 1971 [3 Feb 1970] 21032/71 Heading G1U [Also in Division H4] A cable fault detector includes a bridge circuit having the cable connected in one arm, a dummy cable connected in a second arm, a pulse generator connected across one diagonal, a detector connected across the other diagonal wherein the dummy cable has an electrically variable resistance element whose resistance is set by a calibrated control circuits. Imbalance between the dummy line in arm 8 and the test line K allows the transmitter pulses to show on the detector display. Balance is obtained by varying the capacitance of varactor diode 7 which is equivalent to the reactive component of the cable impedance, by potentiometer 31 and the resistance of thermistor 4<SP>1</SP> by potentiometer P or bridge network 20. Potentiometer 22 is calibrated to provide a direct reading of the resistance of the parallel network 3<SP>1</SP>, 41 which is equivalent at balance to the cable surge impedance of high frequencies. Faults on the line are detected by reflections shown on oscilloscope 17.
Patent GB-632161-A (GB)
Title: Improvements in and relating to containers for the storage of cigarettes or like stick-like articles
IPC: A24F15/12
Filed: 1946-07-13
Abstract: 632,161. Cigarette cases and the like. WALLER, W. M., and WALLER, P. H. July 13, 1946, No. 21045. [Class 18] A container for cigarettes or other stick - like articles comprises two hingedly c o n - nectea trays 1, 2 with separate article retaining elements 7, 8 of corrugated or like form, the grooves of the retainers being so disposed that when the container is closed, the articles lie in two juxtaposed and' interpenetrating layers. The retainers 7, 8 may be hinged to their respective trays and opened for release or insertion of an article against spring pressure as shown in Fig. 1, or they may be fixed in a similar position in a case of cardboard, metal or plastic, Fig. 5 (not shown). The walls of the container may be plain or they may be corrugated as shown in Fig. 4. In a modification, Fig. 6 (not shown), the corrugations of the retainers are so formed that the cigarettes in each layer are spaced apart.
Patent GB-275032-A (GB)
Title: Improvements in and relating to choke tubes for carburettors
IPC: F02M19/08
Filed: 1926-08-27
Abstract: 275,032. Dodson, E. Aug. 27, 1926. Spray carburettors.-In choke tubes for carburettors which are adapted to be inserted in and removed from the casing forming the normal air passage, and in which an exterior annular groove 3 is provided which communicates with a fuel supply passage 8 and, through holes or slits 4, with the interior of the tube 5, the annular groove is closed externally as well as internally, the external wall 6 having an aperture 7 to register with the fuel passage. One of the walls is separately formed. e.g. (1) by a liner 6, (2) by a thicker liner in which part of the groove is formed, and (3) by an inner tubular part containing the holes 4. Opposite the passage 8 the choke tube has an indentation 9 adapted to receive a pressure-exerting device such as a screw 10. These constructions prevent leakage of fuel be tween the walls of the choke tube and casing.