baber/WOPTO huggingface dataset:
Patent GB-167490-A (GB)
Title: Improvements in antennae systems for wireless signalling
IPC: G01S3/12
Filed: 1921-08-04
Abstract: 167,490. Ges. f³r Drahtlose Telegraphie. Aug. 6, 1920, [Convention date]. Aerials; directive signalling. - In an aerial system comprising a directional and unidirectional antenna in combination, the polar diagram of the system may be .varied by varying the electrical constants of the antennµ, or the system may be arranged to have different polar curves for different wavelengths by making the two antennµ of different damping. Fig. 3 shows the resultant polar curve C for a combination of an unidirectional and a directional antenna having separate polar curves A, B, respectively. The dead angles GH, IK may be adjusted to any position by varying the relative amplitudes of the two antennµ. This is preferably effected by inserting in the unidirectional aerial an adjustable ohmic resistance. For preventing interference, the dead angles may be arranged so that a receiver lies in the dead angle from a disturbing transmitter, or so that transmitters lie in the dead angles of a receiver. The centre of the directional antenna should lie in the unidirectional antenna and the two may be combined on a single mast, Fig. 5, in which case the unidirectional antenna should be provided with an additional capacity. In a modification, the unidirectional antenna is formed by earth-connecting a point of symmetry on the frame antenna through a tuning element; the receiver being coupled to both antennµ when the system is used for reception. Preferably, for reception, the unidirectional antenna 1, Fig. 7, is coupled to the receiving circuit through the directional circuit 7. Fig. 8 shows resonance curves L, M for two antennµ each tuned to the wave N and having different dampings, the difference between which, for reception without disturbance, should be as great as possible. Curve C, Fig. 9, represents the polar curve for the wave N at which the amplitudes are the same, and waves of this length coming from the direction T will not be heard. The curve U corresponds to waves Q for which the amplitudes are different, and waves of this length coming from direction T will be heard. This arrangement may be employed when using continuous waves and signalling by de-tuning, both antennµ being tuned to the de-tuned wave.
Patent GB-598204-A (GB)
Title: Improvements in the protective control of the operations of machine tools
IPC: B23Q15/00
Filed: 1945-08-13
Abstract: 598,204. Safety devices for machinery. SOC. ANON. A. CITROEN. Aug. 13, 1945, No. 20811. Convention date, March 25, 1943. [Class 80(iv)] In a safety device for a machine tool, an electrode 6, located near the tool 1, is insulated from the machine and is connected to a high-frequency amplifier so that any change in the capacity of the electromagnetic field 7 acts to stop the machine or operate a signal. Thus in a rubber-shearing machine the rubber sheets 4 pass over the table 3 without affecting the field 7, but if the operator's hand enters the field the amplifier actuates a warning signal or stops the machine. An additional electrode 9 may be used behind the tool 1. The electrodes 6, 9 may be of strip copper and have shields 8, 10. Alternatively the tool itself may form the electrode. In a wood-moulding- cutting-machine the electrodes 16, Fig. 2, are carried on guides 15. Should the operator's hand enter the electromagnetic field, the variation in capacity will influence the amplifier and a series of relays to close the circuit of an electromagnet 19 thus releasing a spring 20 attached to the guide 15 which is thus rotated through about 20 degrees about a spindle 21, to push the hand away.
Patent GB-1064037-A (GB)
Title: Photographic materials with new sensitisers
Inventor: RIESTER OSKAR
IPC: C09B23/10
Filed: 1964-05-20
Abstract: The invention comprises dyes of the general formula <FORM:1064037/C4-C5/1> wherein X is an aromatic grouping substituted by at least one sulpho group and which is either fused to the adjacent heterocyclic ring or is a substituent thereof, Z1 and Z2 are ring members which complete 5- or 6-membered heterocyclic rings, Y is -O-, -S-, -Se- or <FORM:1064037/C4-C5/2> , R and R1 to R5 are hydrogen, alkyl, aryl or aralkyl and m and n are each 0, 1, 2 or 3. The dyes are made from the N-alkyl quaternary ammonium derivatives of sulpho-substituted heterocyclic alkyl thioethers, for example by reacting 2 - methylmercapto - 3 - methylbenzthiazolium-5-sulphoni acid betaine with N-ethyl - isopropylidene - rhodanine, N - ethyl - 5 - oxazolidone-2-thione or 1-phenyl-3-methyl-5-pyrazolone, and when the product formed contains a thione group this may be alkylated to form a thioether and the latter further condensed with an appropriate cyclic compound containing an activated methylene group. Examples include the reaction products of the dimethyl sulphate quaternary salt of 2-methylmercaptothiodiazole -5-thione-4-phenyl-31-sulphonic acid with N-ethyl-rhodanine and N-ethyl - 5 - isopropylidene - rhodanine respectively.ALSO:In Examples, (5) sodium 2-methylmercapto-4 : 5 - benzo - benzoxazole - 6 - sulphonate, (6) sodium 2 - methylmercapto - 5 : 6 - benzobenzoxazole - 21 - sulphonate, (7) sodium 2-methylmercapto - naphth - 11 : 81 : 4 : 6 - oxazine - 31 - sulphonate, (8) sodium 2 - methylmercapto - benzoxazole - 5 - sulphonate, (9) sodium 2 - methylmercapto - benzthiazole - 5-sulphonate, (10) sodium 2 - methylmercaptothiodiazole - 5 - thione - 4 - phenyl - 31 - sulphonate and (11) sodium 1-benzyl-2-methylmercapto - benzimidazole - 5 - sulphonate are made by methylating the corresponding thiols by reaction with dimethyl sulphate at below 30 DEG  C. and at an alkaline pH.  The compounds may then be converted to quaternary ammonium compounds by heating with dimethyl sulphate or methyl toluene sulphonate.  Sodium 2 - mercapto - thiodiazole - 5 - thione4 - phenyl - 31 - sulphonate is made by reacting phenylhydrazine-3-sulphonic acid with carbon disulphide in methanolic alkali and isolating the product via the barium salt.
Patent GB-516156-A (GB)
Title: Improvements relating to prepayment vending apparatus
IPC: G07F11/44
Filed: 1938-07-14
Abstract: 516,156. Coin-freed article-delivering apparatus. MAATSCHAPPIJ VAN BERKEL'S PATENT, N. V. July 14, 1938, No. 20870. Convention date, Sept. 22, 1937. [Class 27] In a coin - freed apparatus for delivering cylindrical articles, and having a magazine 5 the lower portion of which has a delivery opening 8 slightly larger than the diametral section of an article, a finger 10 is pivoted at 11 at a level where two or more of the articles 3, 4 tend to jam and extends beneath one of the articles 4. When the delivery drawer or like member 9 is pulled out after prepayment, an adjustable screw abutment 12 on the drawer engages an arm 13 rigid with the finger 10 to rock the finger 10 upwardly and raise the article 4 along the inclined rear wall 7 of the magazine 5 thereby relieving the jam and allowing the article 3 to drop down towards the delivery opening 8. The front wall of the magazine is vertical and the rear wall converges towards the opening 8. For. long articles, two fingers may be provided to act on the ends of the article 4.
Patent GB-603720-A (GB)
Title: Improvements in or relating to the driving gear of opposed-piston two-stroke internal-combustion engines
IPC: F02B75/24
Filed: 1945-08-14
Abstract: 603,720. Driving-gear of two-stroke engines. CONVERT, H. Aug. 14, 1945, No. 20905. Convention date, Oct. 20, 1944. [Class 7 (ii)] In a four-cylinder two-stroke engine having pairs of parallel opposed cylinders, steel camshaped piston bases 6 each drive the output shaft 7 through pairs of ball-bearings 8 fixed to flanges 9 set on the shaft at right angles opposite the two lines of cylinders. The piston bases are kept in contact with the shaft or the bearings 8 by air or gas under pressure acting on tail-rods 12 and admitted by pipes 13 which supply adjacent cylinders and thus equalize the pressures. The charge, admitted by ports 19, is compressed by the pistons in a chamber 24 and transferred through a space in the tailrods and ports 28 to annular combustion chambers containing spark-plugs 31 and large exhaust ports 32.
Patent GB-257611-A (GB)
IPC: H04H20/84
Filed: 1926-08-25
Abstract: 257,611. Wired Radio, Inc., (Assignees of Duncan, R. D.). Aug. 25, 1925, [Convention date]. Wired-wireless systems. - In a wired wireless broadcasting system, means are provided at selected points in the feeders of the system to indicate at the transmitting station the energy level. Fig. 2 shows one, two, and three phase feeders 3, 4, and 2 respectively of a power distribution system which may be branch low tension power feeders fed from a hightension main. The high frequency supply from leads 14, 15, 16 may be single phase or polyphase and adjustably coupled to the feeders: or other control apparatus 24 - - 27 may be employed to vary the high frequency power introduced into each of the feeders. The apparatus for indicating the energy level may be placed at the end of the feeder or at the " electrical centre " and may comprise for each phase receiving circuits 28, 31, 32, 35 and a detector 38 which may be a crystal. The received energy is transmitted through a transformer 44, line 10 and amplifier 48 to the transmitting station and operates an ammeter 51 while a jack 52 allows telephones to be plugged in to determine quality which may be compared with a standard source of signals from the studio supplied to jack 63. In a modification Fig. 3, the carrier is rectified and applied through a choke 64 over a line 65 to an ammeter 66 at the transmitting station so that an indication is given when no modulation is taking place. When a two channel service is supplied the indicating apparatus is duplicated each set being tuned to one of the carrier frequencies used.
Patent GB-156294-A (GB)
Title: Improved means and apparatus for the treatment of sand and like material in asphalt mixing machines
IPC: E01C19/10
Filed: 1919-08-26
Abstract: 156,294. Cummer, F. H. Aug. 26, 1919. Cauldrons.-Relates to asphaltmixing machines of the type comprising a rctary drier drum 8 through which sand or like material is passed to an elevator 46 by which the heated material is raised to a sifting device 65, 66, and is thence passed into a batch mixer 82. The invention consists in the following combination of parts, viz.-the drier drum 8 rotatable in the heating device 4, a number of spirally-arranged air inlet openings 14 in the periphery of the drum connecting with pipe bends 16 within the drum, hoods 17 baffling the inner ends of the pipes and deflecting the hot air rearwardly, driving and supporting means for the drum arranged at the exposed end thereof, suppcrting means 10, 11, within the heater, a non- rotating feed-hopper 25, 28, and the elevator 46.
Patent GB-199973-A (GB)
Title: Improvements in and relating to the spring suspension of trailer wagons
IPC: B60G11/113
Filed: 1922-08-01
Abstract: 199,973. Spencer, E., and Dyson, J. Aug. 1, 1922. Band. - A two - part block 4a, 5 for securing a laminated bearing spring 1 of a trailer wagon to an axle, is provided with shoulders or flanges 10 to co-operate with the brake drum 9 and prevent the brake band from moving laterally on the drum.
Patent GB-857370-A (GB)
Title: Bulldozer with laterally adjustable blade
Inventor: TURBYFILL BENJAMIN FRANKLIN
Filed: 1959-06-19
Abstract: 857,370. Earth-moving equipment. CATERPILLAR TRACTOR CO. June 19, 1959, No. 21080/59. Class 68(1). The blade 10 of a bulldozer unit is secured to a C-frame 11 mounted about the front of a tractor 12 by a connection 16, 25, 28 that allows the blade 10 to be rectilinearly adjusted transversely of the longitudinal axis of the tractor. The connection is pivotally mounted at 15 on the centre of the forward part of the C-frame. A jack unit 30 extending between the blade 10 and the C frame 11 controls the rectilinear movement of the blade 10, whilst telescopic links 17 allow of angling of the blade if required.
Patent GB-131904-A (GB)
Title: Apparatus for Hammering Piston Rings.
Inventor: LAUFFET CHARLES
IPC: B23P9/04
Filed: 1919-08-27
Abstract: 131,904. Lauffet, C. Aug. 27, 1918, [Convention date]. Rings.-Piston rings while being hammered internally are rotated at a speed varying during each revolution. The tup 2 is reciprocated by springs 5 and ratchet 4, Figs. 3 and 4, engaging a roller 3 unless the slide 7 is held up by a disk 12 and studs 14 in a carrier 15 which is rotated about the hammer by a chain 17, Fig. 1, the driver 18 being eccentrically secured by a slot 19 and nut to the shaft 20. The ratchet 4 is carried on a shaft 10 driven by a stepped pulley and driving the shaft 20, through bet gear 22. The eccentricity of the wheel 18 can be varied and the chain is kept tight by a jockey 24 on the spring- pressed arm 25.
Patent GB-494044-A (GB)
Title: Improvements in and relating to fluid blast electric switches
IPC: H01H33/16
Filed: 1937-07-30
Abstract: 494,044. Fluid-blast switches. AKT.- GES. BROWN, BOVERI, & CIE. July 30, 1937, No. 21240. Convention date, July 30, 1936. [Class 38 (v)] A switch in which the arc is extinguished by a flowing medium and with at least one hollow contact through which the medium flows away, has its main contacts bridged by a protective resistance which is put in circuit by means of an auxiliary contact swept over by the arc, the auxiliary contact forming a constructional part of the hollow switch contact within which it is arranged centrally so as to leave an annular free space between it and the hollow contact. In Fig. 1, the auxiliary contact e for resistance f is in the form of a rod arranged concentrically within the hollow fixed contact b and extending below the contactplane into the bore of a hollow movable contact c, which forms part of an actuating piston having a closing-spring d. The tip of e and a projecting arcing-ring h are of difficultlyvaporizable metal, as tungsten. To further hinder back-arcing, a rotary motion may be imparted to the quenching medium to produce a partial vacuum at the flow-axis thereof. The resistance f may be given a form flaring to the upper end of silencer g, so as to economize space. In Fig. 3, contact c is solid and e is hollow and is urged by a spring i so that it engages c until, in opening circuit, it is arrested by stop k with its tip projecting below the contact-plane. In Fig. 2 (not shown), e is hollow, but fixed, and projects normally into a recess in the end of c, which, as in Fig. 3, is solid.
Patent GB-1340661-A (GB)
Title: Compressor assembly
IPC: F04B1/12
Filed: 1972-05-08
Abstract: 1340661 Compressors FORD MOTOR CO Ltd 8 May 1972 [25 June 1971] 21311/72 Heading F1N A compressor comprises a cylinder body 12 fixed within a housing 10 and having working cylinders 18, 20, 22 within which pistons 120 are reciprocated by a swashplate 110 rotated by a drive shaft 104 which is itself rotated when clutch means 164 frictionally engage it with a driving pulley 144. Each cylinder 18, 20, 22 has a single inlet port and a pair of outlet ports at each end. Porting of Working Cylinders Cylinder 18 has inlet ports 34 and 42 which inter-communicate via passage 40 which leads to an inlet port 38. Ports 34, 42 have co-operating valve reeds 26, 92. The left hand-end of cylinder 18, Fig. 1, has a pair of outlet ports 44, 76, Fig.3, the other cylinders 20, 22 having similar pairs of ports 70, 78 and 68, 72. The cylinder body 12 has three sides at which these outlet ports are distributed. Each side has a reed valve 48, Fig. 4, comprising a plate secured by bolt 50 to the respective side, the plate having inclined plate portions 58, 60, 62, 64 corresponding to ports 68, 70, and 90, 98 of cylinders 20, 22. Between portions 58, 60 and ports 68, 70 is a single valve reed 66, there being a similar reed between portions 62, 64 and ports 90, 88. Thus each valve 48 controls adjacent outlet ports of adjacent cylinders at both ends thereof, ports 68, 70 being at the left-hand end of cylinders 22, 20 and ports 90, 88 at the right-hand end with reference to Fig.1. Thus it can be seen that reciprocation of piston 120 in either direction simultaneously draws in fluid on one side and discharges it from the other. Drive of Compressor An hydraulic lubricating gear pump 168, of which one gear is connected to the rotating pulley 144, draws liquid from sump 206 via ports 204 and 202 and discharges it via port 179, Fig. 2. This port communicates via control valve 192 with a passage 196 and passage 158 which, via port 162 and passage 160 communicates with the chamber of a cylinder 152 formed in part by pulley 144. Reciprocal in cylinder 152 is an annular piston 154 urged away from clutch 164 by springs 156, and non-rotatably coupled to pulley 144 by axial pins. Thus by using valve 192, fluid pressure can be selectively supplied to chamber 152 to move piston 154 into frictional contact with clutch 164 thus transmitting pulley rotation to the drive shaft 104 and swashplate 110, to reciprocate pistons 120. Each piston has an associated coupling member 122, Fig.11, the piston rod 118 sliding through one side thereof, the other side having a bearing 138 which co-operates via slipper 140 with swashplate 110. Member 122, 124, 126 will thus move axially relative to each other as swashplate 110 rotates and take up radial forces on the piston reels. The outlet 179 of pump 168 also communicates with lubrication passages 176, 178 in the housing and drive shaft. In an alternative embodiment Figs. 5 to 10, (not shown) an alternative porting arrangement for the cylinders is shown which, however, does not alter the working and capacity of the compressor.
Patent GB-522352-A (GB)
Title: Improvements in or relating to mechanism for cutting up metallic material
IPC: B23D31/04
Filed: 1939-07-22
Abstract: 522,352. Shearing. CARR, A. R. July 22. 1939, No. 21336. Convention date, July 22, 1938, [Class 83 (iv)] Removing waste.-In a machine for cutting-up scrap metal comprising a fixed cutter blade co-operating with a rotary cutter blade, the blades are reciprocated longitudinally so as to vary the cutting points of the blades and thus to increase the interval between resharpening operations. The machine may be combined with a machine having blades 3 for side, trimming the edges of a metal strip. The scrap passes from the blades 3 through a box like guide 40 secured in the housing 15 of the scrap cutting machine which comprises a fixed cutter 4 and a rotary cutter 5. The housing 15 is secured to a slide plate 10 reciprocated on a guide 7 by a connecting rod 34 and crank pin 33 adjusted by a screw on a face plate 29, which is driven through reducing gear 27 and chain gear 24 from a shaft 22. The rotary cutter 5 is mounted on a splined shaft 16 which is driven from the shaft 22 by belt gear 20.
Patent GB-808083-A (GB)
Title: Improvements relating to means for securing fireplaces to surrounding fixtures
Inventor: MARSDEN GEORGE HENRY
IPC: F24B1/198
Filed: 1956-07-11
Abstract: 808,083. Open fireplaces. MARSDEN & BATESON Ltd. June 25, 1957 [July 11, 1956], No. 21412/56. Class 126 [Also in Group XXV] A means for securing fireplaces to surrounding fixtures comprises a sheet-metal slip A, Figs. 3, 5, adapted to be embedded in the fireplace backing 111 and having a projecting portion 102 which is doubled on itself at 103 and formed with a neck 105. A fixing plate B pivotally engages the neck by a hole 121 at one end which continues into a slit 122, so that the fixing plate B may be passed over the neck until it is located in the hole and the slit is then closed to secure the parts together. A fixing hole 123 in the other end of section B is registered with a mortar course in the case of a brick wall to facilitate fixing of the surround to the wall. ,
Patent GB-422406-A (GB)
Title: Stock reel mechanism for automatic multiple spindle screw machines
IPC: B23B9/02
Filed: 1934-07-21
Abstract: 422,406. Lathes. FAIRWEATHER, H. G. C., 65, Chancery Lane, London.- (National Acme Co. ; 131st Street, Ohio, U.S.A.) July 21, 1934, No. 21417. [Class 83 (iii)] In an automatic multiple-spindle screw machine such as that described in Specification 410,135, the reel supporting the outer ends of the stock bars carries a peripheral gear 41 and is indexed in unison with the work turret by a gear 40 mounted on a shaft 92 driven from a gear 38 on the work turret. The shaft 92 supports operating slides in the machine above referred to. The reel comprises discs 42 .. 44 secured to central tube 52 and carrying tubes 45 for the stock bars, which are fed through work spindles rotated from the usual central gear. The tubes are mounted in antifriction bearings 46 and the discs 43, 44 are supported on roller bearings 47 carried by floor brackets 48. The front disc is supported in a bracket 51 which also has a bearing for the cam shaft 30. A shaft 53 extending from the front disc is supported in a roller bearing in a hollow member secured to the end of the main shaft 10, so that the latter may be rotated independently of the reel.
Patent GB-1501923-A (GB)
Title: Airline couplings for rail vehicles
IPC: B61G5/04
Filed: 1975-05-20
Abstract: 1501923 Railway air line couplings GERMANY MINISTRY OF TRANSPORT 20 May 1975 [17 Sept 1974] 21533/75 Heading B7T An air line coupling connecting the air line 5, Fig. 4, of a first rail vehicle having a hook- and-screw type draught coupling to an air line of a housing 20, Fig. 2, of the automatic central buffer type draught coupling of second rail vehicle, comprises a pipe 1 having a nozzle 6 supported on a support member 18, Fig. 1, provided with a journal pin 10 engaging in a recess of the housing 20, the nozzle 6 being held with its mouth in engagement with the mouth of the air line of the housing 20 by means including a pivoted locking pawl 17 which can be pivoted to an unlocking position by the pulling force of a chain 16 having one end slidably located on a resilient bar 12. The nozzle 6 is provided with a lug 7, an attachment 8, and a stop 23 to enable the nozzle 6 to be connected in bayonet fashion with the nozzle of another similar air line coupling. A deflector 19 is provided on the support member 18 for moving a cover flap away from the housing 20 to expose the mouth of the airline of the housing 20.
Patent GB-832931-A (GB)
Title: Improvements in cultivators
IPC: A01B33/06
Filed: 1957-07-08
Abstract: 832,931. Garden implements. SHUTE, W. A., and CRIBB, E. T. July 1, 1958 [July 8, 1957], No. 21569/57. Class.6(2). A garden implement comprises a digging blade 7 mounted in a shaft 2 connected to a prime mover a, a hood 10 being pivoted which is adjustable longitudinally of the shaft. The shaft 2 is mounted inside a tube 5 in which slides a tube 9 attached to the hood 10. The movement of the hood is limited by stops 13, 14 on a member 11. A spigot 8 is formed on the end of the shaft. A handlebar is attached to the prime mover a. The implement is held vertically and lowered into the ground until the hood contacts the stop 14. The implement is then lifted until the hood just clears the ground, the blade being shielded by the hood which acts as a guard.