baber/WOPTO huggingface dataset:
Patent GB-1477518-A (GB)
Title: Antibiotic and process for the production thereof
IPC: A61K35/74
Filed: 1974-06-28
Abstract: 1477518 Antibiotic E ROSENBERG 28 June 1974 [10 July 1973] 28932/74 Heading C2A A process for preparing novel antibiotic TA comprises cultivating a suitable strain of Myxococcus xanthus under aerobic conditions until a material having substantial antibiotic activity is produced. Antibiotic TA has a # max of 242 nm. in methanol, an IR spectrum indicated in Fig. 4 (not shown), is soluble in chloroform and methanol, is a white solid and has Rf values as defined in Fig. III (not shown). Suitable strains are Myxococcus xanthus TA and Myxococcus xanthus FB (A.T.C.C. No. 25232). The culture medium may contain a pancreatic digest of casein and magnesium sulphate.
Patent GB-774357-A (GB)
Title: Improvements in or relating to a device for wiping off a spoon
IPC: A47G21/14
Filed: 1955-10-11
Abstract: 774,357. Cleaning spoons. BANDRINGA, T. Oct. 11, 1955, No. 28960/55. Class 138(1) [Also in Group XIV] A device for wiping off a spoon comprises two upstanding legs 1, Figs. 1 and 2, with a flexible wiping bridge part 2 connected to the upper parts of the legs and being at least, along its upper edge (see Fig: 1) so narrow as to constitute a relatively sharp wiping edge; the legs 1 being mutually, connected (e.g. by a bridge 5) at their lower ends, the legs 1 and the bridge part 2 being integral and made of a synthetic resin material. The member 5 is connected to the legs 1 through leg parts 3 and 4 and has oppositely extending bars 6, and 7 (see Fig. 1). Preferably the material is a thermosetting plastic, to allow'of washing in hot water. The device is retained on a plate with the edge of the latter between the ear 7 and leg parts 3 by the elasticity of the parts 3 and 4 and the ear 7, the ear 6 serving as a finger piece. In a modification shown in Fig. 4 the legs 1 are formed integrally with the upper edge of a plate 8 made of the same or similar material as the device.
Patent GB-450140-A (GB)
Title: Receptacles for razor blades
IPC: B65D83/10
Filed: 1934-10-10
Abstract: 450,140. Safety razors. SANDFORD, W. H., The Mall, Armagh, Northern Ireland. Oct. 10, 1934, No. 28987. [Class 131] [See also Group XVII] A case for preserving razor blades having an aperture 5 for insertion of a blade and pads 6 arranged to bear on the blade 14 near the edges thereof for wiping or greasing it, is provided with means for guiding the blade to the opening between the pads. The guiding means may comprise a carrier bar 12 slidable within the case. Alternatively, chamfered or protected edges 11 guide the blades. The pads 6 are of leather or like material capable of absorbing grease and may be pressed together by a tightly packed absorbent packing 8. Alternatively, the pads 6 may be pressed together by a spring. The bar 12 may be magnetized to assist in holding the blade.
Patent GB-455736-A (GB)
Title: Improvements in cathode ray tubes
IPC: H01J29/74
Filed: 1935-10-22
Abstract: 455,736. Cathode - ray tubes. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Oct. 22, 1935, No. 29179. Convention date, Jan. 31. [Class 39 (i)] In a cathode-ray tube, the electrons at the entry of the region in which the beam may be laterally deflected are directed to a point P on the axis of the beam whose distance from the entry Q of the deflection region is between one quarter and one half of the length of the deflection region, and the current intensity and speed of the electrons, and consequently the dispersion, are given such a value that the electrons do not cross the axis of the beam and that the point R of the axis of the beam at which the beam has its smallest diameter is located beyond the " direction point" P and at least half-way along the deflection region, means being provided for focusing the electrons after leaving the deflection region. The arrangement relates to tubes such as oscillographs and oscillation generators and amplifiers in which a large dispersion is tolerated for the sake of increased sensitivity, and the limits prescribed prevent undue spreading of the beam in the deflection region. Preferably the ratio of RQ to PQ is made as large as possible, the theoretical maximum being 2. In the form shown in Fig. 1, the point P is one quarter and the " middle point" R is one half of the distance along the region bounded by the deflection plates 4, 5. The beam is symmetrical about the deflection region and the sensitivity is a maximum. The beam is produced by the cathode 1, control electrode 2 and anode 3, and after deflection the beam is focused by known means on the fluorescent screen or output electrode 10. The plates may be shaped to approach the beam more closely as shown by the dotted lines 11, 12. In Fig. 2, the beam is still symmetrical but the distance PQ is greater than one half RQ and the sensitivity is less than in Fig. 1. In a further modification, P is at the same point as in Fig. 2, but R is at the maximum distance. The beam is not symmetrical and the sensitivity is further reduced. The Specification as open to inspection under Sect. 91 comprises a modification, Fig. 4 (Cancelled), in which the direction point P is further than half-way along the deflection region and the middle point R is at the point of impact on the screen or plate 10. A further arrangement is described in which the middle point of the beam is beyond the point of impact and is thus virtual. In both cases the ratio of RQ to PQ has the maximum value 2. This subject-matter does not appear in the Specification as accepted.
Patent GB-504723-A (GB)
Title: Improvements in or relating to contact breakers for magneto electric machines
IPC: H01H3/00
Filed: 1937-10-26
Abstract: 504,723. Interrupters. BRITISH THOMSON - HOUSTON CO., Ltd., GRIFFITHS, L., and MASTERS, A. W. Oct. 26, 1937, No. 29265. [Class 38 (v)] In a magneto-electric machine having a contact make-and-break device operated by a pivoted arm 2, rocked by a cam 1, timing of the spark is effected by varying the extent of the gap of the make-and-break device, variation of the length of gap being effected by mounting the fixed contact 11a of the device on a rod 14 which can be moved by rotation of a screwed sleeve 20, towards or away from the movable contact carried at the free end 2b of the arm 2. The rod 14 is slidably mounted in an insulating bush 11 carried in the reduced end of a bore extending through the casing of the device and into which the sleeve 20 screws, the rod being urged outwardly against a gap-adjustment screw 19 by a spring 16 surrounding the rod and which presses at its ends respectively against the bush 11 and a collar formed on the end of the rod. An insulating cap 17 insulates the rod from the screw 19 and the latter is carried by the sleeve 20. The sleeve 20 is angularly adjusted by a lever 21, which is preferably provided with pre-set positions corresponding to advance and retard timing. A " stop " position may also be provided in which the contacts are per. manently closed. Alternatively, the lever may be spring-biassed so that it always tends to turn into the " stop " position.
Patent GB-290687-A (GB)
Title: Improvements in gear changing mechanism
IPC: G05G9/08
Filed: 1926-11-19
Abstract: 290,687. Ord, L. C. Nov. 19, 1926. Controlling different functions by the same handle or lever. - Gear-changing mechanism for vehicles comprises a control shaft 1 operated independently of the engine and carrying or geared to cams or the like 2, 3, 4. Cam 2 operates the engine clutch. Cam 3 controls the acceleration and deceleration of the engine. Cam 4 operates the change-speed gear through one or more selector rods 9. There may also be a cam 5 for controlling synchronizing auxiliary gearing 13, 14. The cams are designed to operate the various parts in proper sequence. The shaft 1 may be driven by an electric motor 6 controlled by buttons 7, 8. It may be operated by a hand or a pedal lever. A construction of hand lever is described having two separate segment-and-pinion connections with the shaft 1 for changing up and' down respectively. The turning of the shaft 1 in one direction or the other may also be effected by racks driven by two hydraulic pistons.
Patent GB-447184-A (GB)
Title: Improvements in manifolding machines
IPC: B41L11/00
Filed: 1934-10-15
Abstract: 447,184. Manifolding-machines. FORD, Ltd., F. R., and FORD, F. R., 164, Edmund Street, Birmingham. Oct. 15, 1934, Nos. 29516/34 and 12819/35. [Class 100 (ii)] Printing-surfaces.-In a manifolding-machine of the type in which a master sheet having thereon in reverse the matter to be reproduced, one end of the sheet being inserted into an opening in a cylinder and clamped therein, a longitudinal slot 13 is provided in the surface of the cylinder 5, this slot leading to a clamping- member 14 extending substantially along the length of the cylinder and being mounted for rotational movement about an axis parallel to its length, the member 14 having a longitudinal groove or slot 18 which in one position can be aligned with the slot 13 to allow the edge of the master sheet to be inserted therein, and the member 14 being movable into a further position in which the slot 18 therein is out of alignment with the slot 13 in the cylinder to clamp the edge of the master sheet. The cylinder 5 has an integral boss 11 on its interior provided with a tube 12 cast or otherwise secured therein, and the clamping-member 14 consists of a rod mounted to rotate within the tube 12. The member 14 has at one end a flange 15, and has secured at its other end a collar 17. The collar 17 is adapted to be retained in the open and closed positions of the member 14 by the provision of two recesses in the collar 17 which are engaged by a spring mounted on the end of the cylinder. Means for turning the clamping-member 14 includes a pin 25 having at one end a handle 26, and at the other end a flange 27 on which are two projections 28 adapted to engage two holes 29 in the collar 17. The pin 25 cannot be turned unless the projections 28 engage the collar 17, since a cross-pin 35 engaging a pair of openended slots 34 in a member 30 passes through the pin 25. The pin 25 is spring-mounted in the member 30 which is removably secured to the side frame 6 of the machine. The pin 25 must be turned to clamp the master sheet before the cylinder can be moved, since otherwise the cross-pin 35 cannot register with the slots 34 to allow the pin 25 to return to inoperative position.
Patent GB-226203-A (GB)
Title: Improvements in stators and rotors for turbines
IPC: F01D9/02
Filed: 1924-12-09
Abstract: 226,203. Maschinenfabrik Oerlikon. Dec. 10, 1923, [Convention date]. Blades.-To obviate as far as possible periodical fluctuations in the action of the motive fluid on the rotor blades and to decrease oscillation of the rotor blades, the stator and rotor blades b. c are mutually inclined so that the projections g of the exit edges e of the stator blades b in the direction of flow upon the surface containing the inlet edges f of the rotor blades c intersect said inlet edges f. Either the edges e or the edges f may be radial, and two or more adjacent blade edges may be intersected in the said surface by each projected blade edge. The edges e, f may be curved or rectilinear. The stator and rotor blades may differ in number. Reference has been directed by the Comptroller to Specifications 18413/06 and 27409/06.
Patent GB-1012835-A (GB)
Title: Improvements in or relating to optical masers
IPC: H01S3/093
Filed: 1962-08-02
Abstract: 1,012,835. Optical masers. WESTERN ELECTRIC CO. Inc. Aug. 2, 1962 [Aug. 29, 1961], No. 29683/62. Heading H3B. In a solid state continuous wave optical maser, pumping energy is applied to one end of a rod 11 of maser material, which may be ruby. Flush with this one end is a flared collecting element 12 which reflects into the rod 11 all the light received from source S by the larger end of the element 12. The collecting element may be of glass or of sapphire having the same refractive index as the material of the rod. The resonant path of the stimulated output is defined by a 99% reflector 13 on one end of the rod and either a reflector 14 transmitting a few per cent of incident light or a reflecting coating on a limited portion of the exposed end of collector 12. The reflectors 13, 14 may be spherical surfaces separated by their common radius of curvature. If one reflector is spherical and the other plane, the separation is half the radius of curvature. The output beam may either be deflected sideways by a reflector 20 or extracted through a hole (not shown) in reflector 16. Undesired modes may be absorbed by discs or rings interposed between the reflector 14 and the element 12. Pumping.-Light from source S is directed on to the end of the collecting element 12 by an optical system comprising a spherical reflector 18 and parabolic reflectors 16, 17. Lenses may be used. The source S may be used alone but an auxiliary pumping source 19 may also be used. If the auxiliary source is used, the intensity of S is insufficient to establish oscillations alone. Either of the two sources may be a composite source comprising a wide band source exciting a narrow band fluorescent source. In an alternative arrangement, the source 19 may be a linear tube placed at one focus of an elliptical reflector, the rod 11 being at the other focus. Both pumpng sources can be high pressure mercury arc lamps. Pumping energy can be fed to both ends of the rod 11 which may have two collecting elements 12. Modulation.-The output may be amplitude modulated by pulsing source 19 when source S is just insufficient to establish oscillation. Alternatively, a modulating element 14 may be included in the path of the beam. The element 14 may be a Kerr cell or a Christiansen filter. For frequency modulation, the device 14 may use material such as a yttrium-iron garnet, potassium dihydrogen phosphate or plasma whose refractive indices are dependent upon a magnetic field, on an electric field or on the density of ionized particles. The plasma may be a semi-conducting solid or gas. The beam may be modulated by a pivoted mirror deflected by a piezo-electric crystal. Alternatively, the beam may be controlled by a prism having a field-controllable refractive index. Pulse modulation can be achieved by using electrons or X-rays to trigger the excitation, in lieu of the light source 19. Specification 844,799 is referred to.
Patent GB-748469-A (GB)
Title: An improved hydraulic shock absorber
IPC: F16F9/00
Filed: 1953-10-28
Abstract: 748,469. Hydro-pneumatic shock absorbers. SOC. D'APPLICATIONS DES MACHINES MOTRICES. Oct. 28, 1953 [Nov. 12, 1952], No. 29773/53. Class 108 (3). The invention relates to an hydraulic shockabsorber of the type comprising a piston 4 in a cylinder 1, defining a first chamber 11 through which the piston-rod 5 passes, a second chamber 16 on the opposite side of the piston, and means controlling flow of fluid displaced from one chamber to the other, the volume of the chamber 16 being variable in response to variations in pressure due to piston movement. According to the invention, check means 10 prevents flow from the chamber 11 to a third chamber 7 on movement of the piston but permanently allows flow from the chamber 7 to the chamber 11. In fig. 1, the chamber 7 is provided by a baffle 24 carried by an extension 6 of the cylinder head 8. Oil carried by the piston rod 5 is returned to the space 7 via ports 23 and 14. A valve 17 controls flow through the piston. A further valve 25 controls flow in a direction from above to below the piston through a passage 18. The passage 18 may be cut-off by the baffle 24 to provide a hydraulic stop. There may be a second valve similar to 17 disposed on the lower face of the piston. A mass 19 of cellular rubber provides change in volume of the space 16 on piston-rod movement. The mass 19 may be enclosed by a flexible envelope or by a metal bellows. Its cells may contain nitrogen. The mass 19 may be fully floating (Fig. 6, not shown), and retained in position by a grating. The mass 19 may be replaced by an air cushion separated from the liquid by a floating piston (Fig. 2, not shown). A coil spring may assist, or may replace the air cushion (Fig. 3, not shown). In Fig. 4 a flexible diaphragm 34 separates the; liquid from a piston 26 loaded by a spring 29. In a modification of this construction (Fig. 5, not shown), the piston 26 and spring 29 are replaced by a rubber mass. In Fig. 7, a cellular body 39 isolated by an envelope 41, is disposed in an annular chamber connected with the space 16 by ports 40.
Patent GB-346310-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J1/14
Filed: 1929-10-02
Abstract: 346,310. Thermionic cathodes. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Oct. 2, 1929, No. 29927. Conventicn date, Oct. 8, 1928. Void [Published under Sect. 91 of the Acts]. [Class 39 (i).] The decrease of electron emission from a thermionic cathode due to the evaporation of metal and the consequent decrease in temperature is compensated or over-compensated in use by ensuring that the specific resistance of the cathode decreases. The cathode, formed e.g. of tungsten, may be alloyed with easily evaporating metals e.g. the alkali or alkaline-earth metals which also may act as getters, or it may be treated to ensure subsequent recrystallization. It may be alloyed with two or more metals having different rates of evaporation.
Patent GB-434160-A (GB)
Title: Manufacture of an aminopyrene-sulphonic acid
Filed: 1934-02-26
Abstract: A 3 - aminopyrene - monosulphonic acid is obtained by treating 3-aminopyrene with chlorsulphonic acid, thereby converting it into the chlorsulphonate, followed by heating in a solvent, when hydrochloric acid is evolved.  An example is given in which 3-aminopyrene chlorsulphonate is heated in o-dichlorobenzene.
Patent GB-293055-A (GB)
Title: Improvements in or relating to vehicle wheel rims for pneumatic tyres and to the method of making the same
IPC: B21D53/30
Filed: 1927-08-29
Abstract: 293,055. India Rubber, Gutta Percha, & Telegraph Works Co., Ltd., and Avery, W. L. Aug. 29, 1927. Hoops.-Rims for wheels, particularly for use on aeroplanes, are formed by folding the side margins of the strip A over wires, or metal tapes C, Fig. 9, by passing the strip progressively through rolls B<1> - - B<6>, Fig. 2, before bending the strip into circular form. The wire inserts may be of flat round-edged section and are fed from spools E into recesses formed by the first bending-rolls. If a hollow head is desired, the wires may be withdrawn before the completion of the folding process.
Patent GB-743255-A (GB)
Title: Improvements relating to circuits for deriving from amplitude modulated pulses sawtooth waveforms with proportionate durations
IPC: H03K7/00
Filed: 1952-11-28
Abstract: 743,255. Pulse modulation circuits. TELEFUNKEN GES., [formerly TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE]. Nov. 28, 1952 [Nov. 28, 1951], No. 30153/52. Classes 40 (5) and 40 (6). In a saw-tooth wave generator for converting amplitude modulation pulses into saw-tooth waveforms of corresponding width, the short flank of the wave is generated by charging a capacitor through a unilateral conducting device in response to an input pulse and the long flank is generated by discharging the capacitor through a constant current source, the discharge being terminated before the potential across the capacitor reverses and thus before substantial curvature is exhibited. In Fig. 1 a capacitor Co is rapidly charged through a diode d1 by a positive pulse applied to input terminal 2 and slowly discharges through a constant current source S which maintains the discharge linear and which may comprise a voltage source and a high resistance or pentode valve. The discharge terminates when the capacitor voltage has fallen sufficiently for the diode d1 to become conductive since a diode d2 (or a small resistance) will clamp the anode of diode d1 to earth potential. The duration of the output wave depends upon the amplitude of the input pulse and by horizontally slicing the output wave a pulse whose width is modulated in accordance with the amplitude of the input pulse may be obtained. Phasemodulated pulses may be obtained by differentiation. In Fig. 3 negative input pulses charge the capacitor through a diode d1 and the capacitor discharges through a resistor R1 connected to a positive voltage the discharge continuing until grid current flows in the output amplifier valve T1. A diode d3 limits the maximum amplitude of the input pulses. The diode d2 of Fig. 1 is replaced by a resistor R. The circuit of Fig. 5 may also be arranged to receive positive pulses (Fig. 4, not shown).
Patent GB-807839-A (GB)
Title: Improvements in and relating to mounting means for the power unit of a power driven ground traversing machine
Inventor: ERTSGAARD BYRON LOUIS
IPC: F16M3/00
Filed: 1955-10-21
Abstract: 807,839. Mounting electric motors. TORO MANUFACTURING CORPORATION. Oct. 21, 1955, No. 30217/55. Class 35. [Also in Groups XXV, XXVI and XXXI] Means for detachably mounting a motor on a power-driven type of ground traversing machine comprises an adaptor plate A adapted to be fixedly connected to the machine in a horizontal position and a motor support plate B adapted to be connected to the motor, the adaptor plate having a channel-shaped member 11 mounted upon its forward end portion so as to extend upwardly therefrom and transversely thereof, the channel facing rearwardly and having a rearwardly-extending overhanging lip 11a at its upper portion, an upstanding pivot shoulder 13 being mounted on one side of the adaptor plate so as to extend upwardly immediately adjacent the channel member 11, the motor support plate being adapted to be positioned upon the adaptor plate in superimposed relation, and being provided with a transversely extending ear 25 carried on the forward end portion thereof and extending forwardly therefrom, the ear being slidable forwardly into engagement with the channel-shaped member 11 of the adaptor plate when the plates are assembled, clamping means C being mounted at the rear end portion 10 of the adaptor plate for positively engaging the motor support plate to secure the ear in engagement with the channel-shaped member and the pivot shoulder such that the plates are securely fastened to one another. As shown, the adaptor plate has a second channel-shaped member 12 and the motor support plate a second ear 26. The adapter plate also has a second pivot shoulder 14 positioned adjacent the rear end portion 10 of the plate and extending upwardly therefrom. On the opposite side of the channel member 11 is an upstanding wall member 15 which with the pivot shoulder 13 forms an enclosure 16 and the channel member 12 has an upstanding wall member 17 and 18 at each end to form an enclosure 19. The clamping mechanism C comprises a support structure 21 on the plate A and an externally-threaded pin 22 which engages a threaded sleeve 20 on the support structure 21. The pin is provided with an adjustment knob 23. When the ears 25, 26 are engaged with the channel members 11, 12 the plate B can be secured to the plate A by screwing the pin 22 inwardly so that its end engages a recess 29 in the plate B. A plurality of openings 32 are formed in the plate B by which it can be bolted to the underside of the motor and it is also provided with an upstanding pivot bracket 34 to carry a clutch control member for the motor and a pair of support ears 30 and 31 for a handle. The pivot shoulders 13 and 14 enable the plate B to be tilted relative to the plate A before the ears are engaged with the channel members to enable a driving belt to be positioned on pulleys on the motor and machine. Specification 807,840, [Group XXXI], is referred to.