baber/WOPTO huggingface dataset:
Patent GB-657399-A (GB)
Title: Improvements relating to trailer and other vehicles
IPC: B60G17/00
Filed: 1949-02-23
Abstract: 657,399. Trailer undercarriages. WILKS, S. B. Feb. 23, 1949, No. 4929. [Class 108(ii)] Means for raising or lowering a vehicle body comprises a pair of arms each carrying a road wheel at one end and each pivoted to the vehicle at its other end on an axis inclined to the vertical, whereby a swinging movement of the arms and wheels results in the vehicle being lowered. The arrangement is particularly suitable for two-wheeled trailers, to facilitate loading, and the arms and wheels may be coupled to the trailer drawbar so that the swinging movement may be effected by pull or thrust on the drawbar. Fig. 1, shows a vehicle a in side elevation, the wheel c (in full lines) is carried at the end of an arm b which is carried by the inclined pivot d. By swinging the arm b outwardly through a right angle, the wheel c assumes the dotted line position and the vehicle is lowered by a distance h. Fig. 2 shows how the wheels (one only is illustrated) may be coupled to the drawbar g. Each wheel is carried by a bell-crank lever b, e, and the short arm e is connected by a linkage f to the drawbar g. The drawbar is normally locked against longitudinal movement, but unlocking it and reversing the towing vehicle swings the arms b outwardly to lower the vehicle. Forward pull on the drawbar swing the arms b and wheels back into position for towing.
Patent GB-1029968-A (GB)
Title: Magnetic encoders
IPC: H03M1/00
Filed: 1962-11-20
Abstract: 1,029,968. Circuits employing bi-stable magnetic elements. WESTERN ELECTRIC CO. Inc. Nov. 20, 1962 [Nov. 21, 1961], No. 4956/66. Divided out of 1,029,967. Heading H3B. [Also in Division G4] An analogue to digital converter comprises an input winding common to a group of thin magnetic films having uniaxial anisotrophy, each film being biased along its easy axis to a different extent. As shown in Fig. 1, thin magnetic films 310-316 are deposited on a strip substrate 301 and have their easy magnetization axes lengthwise of the strip. Magnetization along the easy axes in one direction is effected by graded bias windings 324 connected in series to a bias source 342, and magnetization along the easy axes in the other direction is effected by equal-turn signal windings 321 connected in series to an analogue signal source 341. Switching of each film magnetization in the order 310-316 from the bias easy direction to the opposite easy direction depends on the amplitude of the analogue signal. Read-out is effected by a read-out pulse source 343 which pulses a read-out winding 322 periodically and switches the films to the hard direction of magnetization. Each time a reset pulse terminates the magnetizations of the films rotate back to the easy axes, the respective magnetization directions being determined by the relative magnitudes of the bias and signal fields applied to each film. Output pulses are induced in film output windings 323 each time the magnetizations are rotated to or from the hard direction. The restorations to the easy direction are detected by integrators 347 to 349, restoration of a film to a biased direction producing an output which is suppressed by a rectifier 343, and restoration to a signal direction producing an effective output. As shown, the windings 323 are connected to integrators 347-349 by way of the rectifiers 343 in such a manner that a Gray-coded digital output is obtained at terminals S1-S3. Modifications mentioned are the replacement of rectifiers 343 by a single rectifier in series with each output circuit 344-346, in which case limiter circuits must also be provided, and the omission of all the rectifiers shown by providing a single rectifier in series with an output winding of double the number of turns on film 313. A construction is described, Figs. 5 and 6 (not shown), in which the substrate-mounted thin films 310-316 are overlaid by strip conductors 422, 421 and 423 serving as read-out, signal and output windings respectively, the assembly being overwound by the graded bias windings 324. The strip conductors may be printed on a tape or circuit board.
Patent GB-122740-A (GB)
Title: Improvements in and relating to Valves for Feeding Liquid Fuel in Internal Combustion Engines.
Inventor: RUSSELL JOHN
IPC: F02M61/08
Filed: 1918-03-21
Abstract: 122,740. Russell, J., and Kennedy, R. March 21, 1918. Cylinders receiving liquid fuel.-The fuel admission port to the combustion or mixing chamber is controlled by two valves 1, 2 of which the former is mounted on the latter and by closing before it protects it from heat.
Patent GB-1038162-A (GB)
IPC: H04N1/32
Filed: 1963-02-07
Abstract: 1,038,162. Facsimile systems. ASAHI SHIMBUNSHA PUBLISHING CO. Ltd. Feb. 7, 1963, No. 5010/63. Heading H4F. Relates to a facsimile transmission system in which rotating drums subjected to slow transverse scanning are employed at both the transmitter and receiver. In accordance with the invention the receiver includes means which detects a break in transmission, due, e.g., to fading in a radio link, and interrupts the transverse scanning motion whilst allowing the drum rotation to continue. A signal is also sent back to the transmitter over a second transmission path where the transmitter transverse scanning is similarly stopped. Resumption of transmission is detected at the receiver, the transverse scanning restarted and a signal sent to the transmitter to restart its transverse scanning. The invention is of particular value in the transmission of newspaper information since it avoids the necessity of repeating whole pages which have been spoilt by transmission interruptions. Recording at the receiver is effected by modulated light on photographic media; when an interruption is detected the light is cut off with the interruption in transverse scanning. When transmission is resumed, the drum angular position will not necessarily be in the position it occupied when the interruption occurred. If then transverse scanning is immediately restarted an area of the recording medium will be left unexposed and will introduce a blemish in a subsequently produced image. This is avoided by introducing means whereby, when transmission is resumed, the modulated light is brought into use immediately, but the transverse scanning and the control signal to transmitter is delayed for a period. If the receiver drum rotation is maintained in step with that at the transmitter by synchronizing signals sent from the transmitter, means are provided, when a transmission interruption occurs, to cause the receiver timing means, e.g. a tuning fork or other resonator, to operate independently. When transmission is resumed, a phase monitoring means is employed first to bring the receiver timing means in phase with the synchronizing signal; the transverse scanning is then restarted. The restart of transverse scanning at the receiver and transmitter after a transmission interruption may be controlled manually from the receiver.
Patent GB-956844-A (GB)
Title: Improvements in and relating to devices for adjusting the height of agricultural implements
IPC: A01F15/10
Filed: 1963-02-07
Abstract: 956,844. Locking rotary elements; linkwork. MASCHINENFABRIK FAHR A.G. Feb. 7, 1963 [Feb. 14, 1962], No. 5051/63. Headings F2E and F2K. [Also in Division A1]. A device for adjusting the height of an agricultural implement 1 pivoted about a mounting 2 on a machine frame comprises a bell-crank lever 7 connected by a link 5 to an arm 3 secured to the implement, a cable 9 for moving the lever 7, and means for locking and unlocking the lever comprising a pawl 15 pivoted at 14 to the lever and urged by a spring 19 into engagement with a sector rack 10 on the machine frame, the rack being formed with trip stops 11, 12 at its ends which respectively engage the pawl at opposite ends of its travel, so that when the lever 7 is moved to its extreme left position the pawl is pivoted by stop 11 away from the rack and held away by the spring 19 going over-centre, this allowing the lever to be moved freely to its extreme left position wherein the stop 12 pivots the pawl back into engagement with the rack.
Patent GB-1143501-A (GB)
Title: Improvements in the separation of rare earth elements
Inventor: SHERRINGTON LEONARD GEORGE
IPC: C01F17/224
Filed: 1966-02-04
Abstract: 1,143,501. Europic oxalate. THORIUM Ltd. 20 Jan., 1967 [4 Feb., 1966], No. 5100/66. Heading C2C. [Also in Division C1] Europic oxalate may be obtained from a mixture of rare earth metal oxides by (i) forming an acid solution, e.g. by dissolving in HCl to pH 3À5-4À5, (ii) reducing europic ions to europium (II) ions by adding zinc dust and heating in an inert atmosphere, (iii) adding excess magnesium oxide to precipitate trivalent rare earth metal ions, heating and filtering, (iv) oxidizing the europium (II) ions in the filtrate to europic ions, e.g. with hydrogen peroxide, and (v) adding oxalic acid to precipitate europic oxalate.
Patent GB-815178-A (GB)
Title: Two-channel radio beam antenna arrangement
IPC: H01Q25/00
Filed: 1957-02-15
Abstract: 815,178. Aerials. STANDARD TELEPHONES & CABLES Ltd. Feb. 15, 1957 [Feb. 16, 1956], No. 5212/57. Class 40 (7). An aerial system capable of transmitting or receiving two distinct radio waves having mutually perpendicular linear polarizations consists of a waveguide horn having a grille of parallel conductive members across its mouth and a primary element in front of the grille and orientated so as to co-operate with radio energy reflected by the grille. Fig. 1 shows an embodiment in which a waveguide 1 is fed by a probe 3 from a coaxial line 5. The waveguide is coupled to a radiating horn 2 across the mouth of which extends a grille 8 of parallel conductive rods. These rods do not affect the radiation from the horn but reflect energy of orthogonal polarization radiated by dipole 7 mounted in front of the horn and fed by coaxial line 7. In another embodiment (Figs. 3 and 4, both not shown) the dipole is replaced by a unipole fed by a coaxial line extending to it in a direction parallel to and outside the bars of the grille. The outer conductor of the coaxial line is provided with a quarter wavelength skirt.
Patent GB-1060202-A (GB)
Title: Piperazine derivatives
Inventor: FORT GODFREY
IPC: C07D241/04
Filed: 1965-02-05
Abstract: The novel compounds: 2,3,5,6-tetrahydroxy-1,4-dimethanesulphonylpiperazine and 1,2-dimethanesulphonamidoethane-1,2-diol are prepared by reacting methane sulphonamide with glyoxal in the presence of an alkaline catalyst. The presence of excess glyoxal favours the preparation of the piperazine derivative while the presence of excess methane sulphonamide favours production of the diol. Suitable catalysts are sodium carbonate and sodium bicarbonate and the reaction is conveniently carried out in an aqueous medium. The tetrahydroxypiperazine derivative may be esterified to give, for example, the novel tetrachloro-, tetranitrato-, and tetraacetoxy esters.  The tetranitrato-ester which is a valuable constituent of explosive compositions, may also be prepared by treating the tetrachloro derivative with silver nitrate.
Patent GB-477738-A (GB)
Title: Improvements in or relating to electrical impedance networks
IPC: H04B3/14
Filed: 1937-02-22
Abstract: 477,738. Impedance networks. SIEMENS & HALSKE AKT.-GES. Feb. 22, 1937, No. 5228. Convention date, Feb. 22, 1936. [Class 40 (iii)] Positive hot conductors (whose resistance increases with increasing temperature), negative hot conductors (whose resistance decreases with increasing temperature), and cold conductors (whose resistance is substantially independent of temperature) are combined to form high-pass or low-pass frequency filters or attenuation equalizers. When an alternating current is superimposed on a steady direct current, the resistance of a negative hot conductor increases asymptotically with frequency from zero towards a limiting value, and the admittance of a positive hot conductor has the same property. An L section, Fig. 5, therefore behaves as a high-pass filter if the series arm X and shunt arm Y are respectively a cold conductor and negative hot conductor, a positive hot conductor and cold conductor, or a positive hot conductor and negative hot conductor. Low-pass filters are formed by interchanging the positions of these elements. An attenuation equalizer is formed, Fig. 11, by arranging a cold conductor W<1> and negative hot conductor H- in shunt across a transmission line W. Specifications 366,920 and 466,241 are referred to. Reference has been directed by the. Comptroller to U.S.A. Specification 1,875,157.
Patent GB-106479-A (GB)
Title: Improved Process and Apparatus for the Manufacture of Vinegar or Acetic Acid.
Inventor: AUGUSTE JOSEPH FRANCOIS DE BAV
IPC: C12J1/10
Filed: 1917-04-13
Abstract: 106,479. Bavay, A. J. F. de. May 18, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Vinegar.-In the manufacture of vinegar or acetic acid by circulating alcoholic liquor through a vessel packed with shavings or the like or with grids and in which a current of air is maintained, the vessel is closed and is connected by a pipe to a separate vessel in which the alcoholic fumes are condensed and the acetic acid fumes absorbed by an alkaline substance. The alcoholic liquor from the vessel C is distributed over the grids A<1> by means of a sparger D' and is returned to the vessel C by a pump F. Air enters through holes A<3> and after passing through the vessel A is drawn off by a pipe G to a vessel B containing an alkaline solution B<2> and limestone supported on a porous diaphragm B<1> in the upper part of the vessel. The current of air is maintained by an ejector K<1>. In a modification of the converting vessel A, the air is introduced with the alcoho ic liquor by means of an injector.
Patent GB-575473-A (GB)
Title: Improvements in and relating to safety razors
IPC: B26B21/24
Filed: 1944-03-21
Abstract: 575,473. Safety razors. HEIDE, H. C. (Gillette Safety Razor Co.). March 21, 1944, No. 5283. [Class 30] In a safety razor of the pivoted blade type, the blade is normally retained in shaving position by a member 35, Fig. 2, slidable in a plane parallel to the plane of the blade and having arms 41, Figs. 1 and 2, engaging the ends of the edge of the blade and a connecting bar 42 engaging the face of the blade and preventing movement about its pivot shaft 21. The member 35 may.be slidden sufficiently by a finger piece 36 or by a finger on a blade magazine to release the blade from the arms 41 while keeping it held by the bar 42, so that the old blade may be ejected and a new blade inserted by endwise movement without fear of the cutting edge contacting any part of the razor head. The guide for the member 35 is formed by cut-away portions of a stem 11 of square section, which may form the handle or be removably inserted in a handle 10. The guard 33 has a portion 32 forming a blade seat, and a base portion 30 which, with the base portion 16 connecting the side plates 18 of the razor head, is secured by screws to ears projecting from the sides of the stem 11. The blade 50 is held between plates 22, 23 projecting from a sleeve 25 fixed to the shaft 21 and notches in the ends of the blade are engaged by small rollers 24 carried by the plate 22 to hold the blade yieldingly in position. A blade magazine, Fig. 5, comprises a box having a blade feed slide 53 for ejecting blades singly through a slot 501 and the box is provided with a projecting finger 51 in a plane parallel to the plane of the blades, and a dowel pin 52. One side plate 18 of the razor head is provided with a hole to receive the dowel pin, and a cut-away part to receive the finger 51, which then enters between a lip 34 on the guard 33 and a lip 40 on the retaining member 35 to press the latter back against the action of a spring 29 sufficiently to release the blade from the arms 41 but insufficient to move the bar 42 clear of the blade. The feed slide 53 of the magazine may now be operated to push a new blade into the razor and eject the old blade. Upon withdrawing the finger 51, the spring 29 acts to return the member 35 to blade retaining position. To enable the blade to be stropped or cleaned, the member 35 is moved by the finger piece 36 sufficiently to move the bar 42 clear of the blade to allow the latter to turn about its pivot axis 21.
Patent GB-441169-A (GB)
Title: Improved means for preventing fracture and over-heating of flexible cables connected to portable electrically heated devices
IPC: H01B17/58
Filed: 1935-02-19
Abstract: 441,169. Cable end constructions; couplings. HEDLUND, M., 114, Birgerjarlsgatan, Stockholm. Feb. 19, 1935, No. 5313. Convention date, June 13, 1934. [Classes 36 and 38 (i)] To prevent fracture and overheating of a cable 9 con nected to an electric iron or other portable electrically heated device 1, the di ameter of the cable is gradually increasec near its point of attachment to the device, and between such point and the heating element of the device there is provided a heat dissipating means, such as a stiff wire coil 3 through which the conductors 8 of the cable pass. The coi 3 screws on to a socket 2 of the device and carries at its upper end a member 4 having a shouldered recess in which the flanged end 6 of the cable is clamped by a nut 5. The cable end is preferably provided with a tapered core 7 around which the conductors are stranded with a gradually decreasing pitch, as shown.
Patent GB-377217-A (GB)
Title: Improvements in hammers with cranks for transmitting motion to the tubs
IPC: B21J7/12
Filed: 1931-02-20
Abstract: 377,217. Power hammers. MASSEY, Ltd., B. & S. and MASSEY, H. F., Steam Hammer Works, William Street, Openshaw, Manchester. Feb. 20, 1931, No. 5337. [Class 83 (iv).] The tup c guided between columns b is moved up and down by a chain &c. 7 (duplicated at the other side of the machine) passing between rollers 6 on a crosshead actuated by connecting-rod m and crank shaft j and over a wheel 8, the end of the chain being connected to a spring device such as an air cylinder 12 to the underside of the piston 11 of which air is admitted by valve 13. Shaft runs loose within a drum i driven by reduction gearing g, h from pulley shaft e ; the shaft j is adapted to be clutched to the drum by a band clutch p anchored at one end to a stud q on an arm o rigid with the shaft j and at the other end to an eccentric shaft s on arm o, shaft s being actuated against the pressure of a releasing spring s<1> by a lever t and cord u attached to a disc r mounted between friction members w, x rotating with drum i, member x being moved to grip disc r by pins y on a collar y<1> operated by a lever z, link 1, lever 4, and handle 5 or foot-lever. A brake band acting in one direction only on a drum on shaft j prevents reverse movement of this shaft when clutch p is thrown out, having the effect of holding the tup c in a higher position above the anvil a. In a modification, the rollers 6 are dispensed with and the crosshead is connected to the chain 7 by a link. In another modification, Fig. 6, links 7a, 7b are employed connecting the tup c and crosshead l to a bell crank 17 connected to the air piston-rod 10. In another modification, the clutch device is provided on the main shaft e. In a further modification, Fig. 9, a second piston and cylinder 28, 29 are provided above the cylinder 12 together with a manually controlled valve 32 by operating which the hammer impact can be regulated.
Patent GB-143333-A (GB)
Title: Improvements in or connected with water closets
IPC: A47K13/30
Filed: 1919-03-04
Abstract: 143,333. Jofeh, J. March 4, 1919. Closet seats; disinfecting.-Two or more seats are formed side by side and are adapted to be moved across the basin into a chamber containing means for flushing the seats with water and disinfectant. On turning the handle e' to the right, the seat b is moved by levers e, b<8>, b<5> into a chamber c' in which a sparge pipe is simultaneously supplied with water from the flush tank and with disinfectant from a chamber d by a valve d'. At the same time, a seat moves from another cleansing-chamber c<2> into operative position between the chambers. In a modified form, the seats are formed in a revoluble disk enclosed by a circular chamber, except in the sector over the basin, which is cut away.
Patent GB-963814-A (GB)
Title: Improvements in and relating to polymeric s-triazines
Inventor: DEWING JOHN
IPC: C08G73/06
Filed: 1961-02-14
Abstract: Compounds of formula II: <FORM:0963814/C1/1> wherein Y is -SH, -SR, or -OAr, where R is an unsubstituted or substituted hydrocarbo group and Ar is a substituted aryl radical, and wherein X is H, R,-OH, -OR, -SH, -SR and W is <FORM:0963814/C1/2> , where m is at least one.  A is hydrogen or an unsubstituted or substituted hydrocarbon group, the groups A being optionally the same or different, and D is an s-triazine group or an unsubstituted or substituted hydrocarbon radical of valency m + 1 are prepared by reacting one or more triazines of formula IX: <FORM:0963814/C1/3> wherein X and Y are as hereinbefore defined and Z is the same as Y, or hydrogen, or a group replaceable by an amino group, with ammonia, or a primary or secondary amine or one or more amines of formula ANH-D(-NHA)m.  In examples, 2-amino-4-metacresoxy-6-phenyl-s-triazine is prepared from 2-amino-4-chloro-6-phenyl-s-triazine and metacresol (1); 2,4-bis (2,4-dichlorophenoxy)-6-phenyl-s-triazine is prepared from 2,4-dichloro-6-phenyl-s-triazine and 2,4-dichlorophenol (3); 2-amino-4 (2,4-dichlorophenoxy)-6-phenyl-s-triazine is prepared from 2-amino-4-chloro-6-phenyl-s-triazine and 2,4-dichloro-phenol (5); and 2-amino-4-phenylthio-6-phenyl-s-triazine is prepared from 2-amino-4-chloro-6-phenyl-s-triazine and thiophenol (6), the reactions taking place in the presence of sodium hydroxide in aqueous acetone.  Specifications 905,609, 963,811, 963,812 and 963,915 are referred to.ALSO:Polymeric amino-s-triazines comprising a succession of repeating units having the general formula I: <FORM:0963814/C3/1> wherein X is H, R, -OH, -OR, -SH or -SR, wherein R is an unsubstituted or substituted hydrocarbon group and W is <FORM:0963814/C3/2> , wherein m is at least 1, A is hydrogen or an unsubstituted or substituted hydrocarbon group, the groups A being optionally the same or different, and D is an s-triazine group or an unsubstituted or substituted hydrocarbon radical of valency m + 1, are prepared by a process which comprises reacting a compound of formula II: <FORM:0963814/C3/3> wherein Y is -SH, -SR, or -OAr where R is as hereinbefore defined and Ar is a substituted aryl radical, with itself, or with one or more compounds of the same general formula, under polymer forming conditions. The compound of formula II may be formed in situ during the polymer forming reaction by reacting one or more triazines of formula IX: <FORM:0963814/C3/4> wherein X and Y are as hereinbefore defined and Z is the same as Y, or hydrogen, or a group replaceable by an amino group, with ammonia, or a primary or secondary amine, or one or more amines of formula ANH-D(-NHA)m.  In Example 8 the condensation product of hexamethylene diamine and 2, 4-dithio-6-hydroxy-s-triazine monohydrate is stated to be insoluble in water and common organic solvents but to be swollen by water.  Specifications 905,609, 963,811, 963,812 and 963,815 are referred to.