baber/WOPTO huggingface dataset:
Patent GB-844933-A (GB)
Title: Optical gratings and grids, and the testing of optical elements by means of them
IPC: G01M11/02
Filed: 1956-07-30
Abstract: 844,933. Optical apparatus. PRESCOTT, R. July 30,1956 [April 5, 1956], No. 23482/56. Drawings to Specification. Class 97(1) A grating or grid produces diffraction spectra of zero and first orders but no substantial spectra of ratio orders. Preferably the grating or grid has one or more of the optical properties of transmittances reflection transmitted past length and reflected past length varying cyclicly with distance across the grating or grid through several cycles substantially in proportion to a constant plus a sine of a quantity proportioned to the distance. Such a grating may be produced by (1) printing with light from a broad or moving light source directed through a grating, which produces spectra of many orders, on to a photographic plate separated slightly from the grating to soften the line edges; (2) projection printing with defocusing to cause the reproductions to be unsharp; (3) projection printing with perfect focus and stopping down so that the resolution of the projection system is only sufficient to pass the basic line frequency of the master grating whereby the image produced has substantially sinusoidal variations at the basic line frequency; and (4) the production of Fraunhofer spectra and then allowing only selected orders to produce interference fringes. The grating may be used to list an optical element by including the latter in an optical system through which a beam from a narrow light source is passed. The system is adapted to focus an image of the element on a screen and to focus an image of the same at a point between the element and the screen, and after placing the grating or grid close to this point the fringes thereby produced on the screen are noted. The narrow light source may be a slit parallel to the grating or may be formed by several parallel slits so spaced that the fringes produced by each slit will occupy the same position as the fringes produced by the remaining slits. This apparatus may also be used to direct small displacements of a member by connecting the latter to the grid or grating or to any convergent or divergent part of the optical system. Specification 200,488 and French Specification 587,034 are referred to.
Patent GB-1429419-A (GB)
Title: Method of influencing an electrocatalytic reaction proceeding at an electrode
IPC: C25B3/23
Filed: 1974-05-28
Abstract: 1429419 Influencing electrocatalytic reactions electrically STUDIECENTRUM VOOR KERNENERGIE 28 May 1974 [30 May 1973] 23595/74 Heading C7B An electrocatalytic reaction is influenced by applying to the working catalytic electrode cathodic pulses (relative to a saturated calomel electrode) of amplitude (a) 100-1000mV, duration (d) 10-500mS and pulse separation 10d-50d. The reaction may be the oxidation of MeOH in KOH electrolyte on a Pt electrode with a= 500- 1000mV or may be the oxidation of H, (NH 2 ) 2  or NH 3  in H 2 SO 4  electrolyte on an alloy electrode (e.g. Pb-Te) with a=100-500mV. In the latter case some (e.g. 1 in 10) of the cathodic pulses may be preceded by anodic pulses of 2-2À5V amplitude, duration (d') 100-2000mS and a separation 10d'- 2000d'. The pulses may be applied between the electrode and a saturated calomel electrode using an Ag counter electrode.
Patent GB-847485-A (GB)
Title: Process and apparatus for demixing substances
IPC: B01D53/24
Filed: 1956-07-31
Abstract: In a process for demixing substances (e.g. gases or glycerol-water mixtures) the substances are introduced into at least one capillary tube and are conveyed through it in laminar flow, and the flow is divided at the outlet end of the tube into a central stream and a peripheral stream, each component stream being taken off separately. The outlet end of a capillary tube 1 is enlarged at 11, <PICT:0847485/III/1> <PICT:0847485/III/2> Fig. 2a, and the central and peripheral streams are withdrawn at 9 and 10 respectively.  In Fig. 2b the tube 1 ends in a chamber 12 having exits 9 and 10.  An assembly of units each comprising an entrance chamber 2, a capillary tube 1a (or 1b, &c.), and a flow-dividing chamber 3, for progressive separation, is shown in Fig. 4.  A mixture is introduced at 18 and flows along the tube 1c, the central stream emerging thence being pumped at 6 to the chamber 2 of tube 1b.  The central stream from tube 1b is pumped to the chamber 2 of tube 1a, the central stream therefrom being divided, part being discharged from the apparatus at 19, 21, and part being re-cycled to the chamber 2 of tube 1a.  In a similar manner the peripheral stream from the feed mixture at 18 progresses generally downwardly (along tubes 1c, 1d, 1e successively) through the assembly, part of the peripheral stream from the tube 1e being discharged from the apparatus at 20, 22. At each intermediate entrance chamber 2 the peripheral stream emerging from the adjacent tube on one side is mixed with the central stream emerging from the adjacent tube on the other side. The capillary tubes may have a rectangular cross-section.
Patent GB-771985-A (GB)
Title: Drive means for coiling attachment for wire processing machine
IPC: B21C47/04
Filed: 1955-08-17
Abstract: 771,985. Winding and reeling. TICKNER, A. (Zaveruha, V. A.). Aug. 17, 1955, No. 23670/55. Class 83 (4). A wire packaging attachment 10 adapted to be connected to a projecting rotary, driven member 11a of a wire processing machine 11 comprises a frame 12 having rotary wirefeeding means 14 and an interconnected vertical rotary packaging device 17 thereon; a drive shaft 13 therefor projecting above the frame; a post 15 on the frame projecting above the frame and having a bearing 16 for the end of the shaft; an overarm 27 mounted on the post 15 to pivot about said shaft 13 and projecting beyond the sides of the frame ; a stub shaft 28 rotatably mounted on the arm 27 adjacent the other end thereof; chain 29 and sprocket drive means carried by the arm connecting the stub shaft and drive shaft; and a universal connection 32 secured to said stub shaft 28 and having means 33 thereon adapted to be connected to said projecting driven member 11a of the wire processing machine to be driven thereby so as to rotate said wire feeding 14 and packaging 17 devices in timed relation to said wire processing machine. Wire from the last coiling drum 11a of a wire drawing machine passes to the wire feed capstan, therearound and through rollers 26 which give it a permanent set to lie properly in a drum 18, and thence through a guide 21 to coil in the drum 18 which is mounted on a carrier 19 driven by a chain 20, from the shaft 13.
Patent GB-225002-A (GB)
Title: Improvements in warp supplying mechanism of looms for the production of pile fabrics
IPC: D03D39/00
Filed: 1923-09-24
Abstract: 225,002. Spink, A., and Crabtree, D. Sept. 24, 1923. Pile-fabric looms; warps, tensioning and guiding.-In looms for weaving pile fabrics having a chenille or fur weft, the catcher warp threads 3 or 3<a> are, as usual, operated by needles 7 on a sliding frame coupled by rods 10 to arms &c. 5 on an oscillatory shaft 4, but a warp beam 2 or 2<a> for these threads is used, situated as shown and not in the usual position above the needles. The catcher warp threads pass over the shaft 4 and over a roller &c. 6 carried by the arms &c. 5 and are thereby kept at an even tension as the needles rise and fall. In weaving hard back fabric, the catcher warp 3 is taken from the beam 2, the stuffer or dead warp from the beam 9, and the ground warp from the beam 2a. In weaving reversible fabric, the beam 2<a> or 9 alone may be used, half the warp threads being used to form the ground and following the path of the warp threads 8, whilst half pass through the needles and follow the path of the warp threads 3<a>.
Patent GB-1515293-A (GB)
Title: Endoprosthetic devices
IPC: A61F2/36
Filed: 1974-05-29
Abstract: 1515293 Femoral prosthesis NATIONAL RESEARCH DEVELOPMENT CORP 22 May 1975 [29 May 1974] 23794/74 Heading A5R A femoral endoprosthesis comprises a ballshaped head 11 connected by a neck 12 to a tapered intramedullary stem 13 having a slot 14 in the wider end portion thereof said slot 14 having an interior width greater than that at its longitudinal mouth, an end of the slot being open whereby an elongate member 20 having an enlarged end 22 is captively and adjustably received in said slot, said member serving to connect the trochanter major 53 to the prosthesis. A fastener 40 is secured on the free end of the member 20. A threaded bolt 60 limits upward movement of the member 20 along the slot. A washer 30 comprising a dished central portion from which extend curved spring members 32 may be positioned between the fastener 40 and trochanter major.
Patent GB-714704-A (GB)
Title: A deivce for regulating the proportion between two gaseous media in conditioning plants
IPC: F24F1/00
Filed: 1951-10-12
Abstract: 714,704. Ventilating apparatus. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN. Oct. 12, 1951 [Oct. 18, 1950], No. 23818/51. Class 137 Apparatus for delivering a gaseous medium, e.g. air, to enclosed spaces and which regulates the relation between the supply of conditioned and non-conditioned air comprises an insulated metal plate casing 6 which is supported on angle irons 1, 7, 26, 39, and which is divided by a flexible valve band 17 into an upper compartment 13 for bye-passing non-conditioned air, and a lower compartment which accommodates either a heater, or a cooler, or a humidifier unit for conditioning the air. The lower wall 62 of the casing may be removed by undoing screws 65 to provide access to the inside of the casing. Air enters the unit through an inlet opening D, F, and passes either into the lower compartment through an opening E, F, between an adjustable angle plate 35 and a front wall 33 of the valve band 17, or into the upper compartment between the valve band 17 and an upper wall 15 of the casing 6, the outlet openings for the upper and lower compartments being at A, B, B, C, respectively. Mechanism for raising or lowering the valve band 17 to vary the proportions of conditioned and non-conditioned air includes a rod 25 which connects the valve band 17 to a pivoted lever 45 rotatable by hand operated levers, not shown. The rod 25 engages in one of a number of holes 47 ... 50, in the lever 45 to allow for different adjusting movements of the valve band 17. A rod 51 connects the lever 45 to an insulated valve disc 5, which is adapted to open or close an outlet opening 59 in the lower compartment in unison with the opening or closing of the inlet opening to this compartment. In a modification, the lever 45a and the rod 25, Fig. 2, are arranged so that a further turning movement of the lever in a direction to close the inlet opening of the upper compartment, after the latter has been closed will force the valve disc 5 into contact with the outlet opening 3a and entirely close the passage of the conditioning means. Specification 714,693 is referred to.
Patent GB-745802-A (GB)
Title: Improvements in or relating to a car coupler of the rigid-jawed type
IPC: B61G3/16
Filed: 1954-08-17
Abstract: 745,802. Automatic couplers. NATIONAL MALLEABLE & STEEL CASTINGS CO. Aug. 17, 1954 [Aug. 24, 1953], No. 23899/54. Class 103 (5). To increase gathering range a Willison-type coupler is provided with a laterally extending wing 20 having relatively inclined abutment surfaces 26, 27 so that the pulling jaw 6 of an opposing coupler can move along the surface 27 until the junction M is reached whereupon relative rotation of the couplers effects coupling.
Patent GB-919932-A (GB)
Title: Rotary vacuum cylinder
IPC: B65H20/12
Filed: 1961-07-03
Abstract: 919,932. Hollow rollers. TIME Inc. July 3, 1961 [July 6, 1960], No. 23962/61. Class 34 (1). [Also in Group XVI] A rotary vacuum cylinder for feeding webs or sheets comprises an inner stationary housing 19 having an opening 26 for connection to a source of vacuum, a rotatable outer perforated cylinder 10 surrounding the housing, one or more removable sealing frames 32 mounted on the housing between the housing and the peripheral wall of the cylinder, the frames having seals 39 for sealing between them and the inner surface of the outer cylinder, a number of vacuum spaces extending over parts of the periphery of the cylinder each having an opening 18 for communication to them of the vacuum within the housing. The frames 32 are mounted for longitudinal adjustment along the housing 19 between guide member 33, 34 fastened to the inner cylinder by bolts 35, a gasket 55 being provided at each end to prevent air leaks. Ports 30, 31 can each be closed by a shutter 43 pivotally mounted on a screw 44 (Fig. 5, not shown). The areas on the outer cylinder 10 over which vacuum is produced is determined by opening or closing the shutters, e.g., according to the width of material being fed by the cylinder. The housing 19 can be circumferentially adjusted by loosening screws 56 (Eig. 1A, not shown) securing a flange 57 to a frame 16. A counter-weight 59, Fig. 3, is diametrically opposed to the frames 32 to facilitate turning the housing 19.
Patent GB-768678-A (GB)
Title: Improvements in or relating to synchronising circuits
Inventor: LAWRENCE ERIC
IPC: H03L7/08
Filed: 1953-08-31
Abstract: 768,678. Automatic synchronizing control systems. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Aug. 31, 1954 [Aug. 31, 1953], No. 24000/53. Class 38 (4). An oscillator 2 is synchronized relative to a pulse source 1, e.g. in a television flywheel scanning system, by applying both outputs to a phase discriminator 5 whose smoothed output controls a reactance valve 10 stabilizing through a condenser 11 the frequency and phase generated. According to the invention the sensitivity of the valve 10 is increased for a frequency range, e.g. round 50 c/s., of the control voltage at which the latter is most subject to disturbance, e.g. due to phase modulation of the transmitted synchronizing pulses at this mains frequency. To this end the reactance valve 10, or a preceding amplifying valve, may have a negative feedback path 17 including a parallel T or other filter 21 strongly attenuating this frequency so that the negative feedback is then inoperative. Or the phase discriminator output filter may include a parallel resonant circuit 26, 27 connected in series with one, 23, of the smoothing condensers 23, 25, to reduce the effectiveness of the smoothing at the resonant frequency. Sensitivity of control may also be arranged to increase at harmonics of the mains frequency.
Patent GB-1112145-A (GB)
Title: Internal combustion engine electrical systems
Inventor: PETTITT WILLIAM JOHN
IPC: H02J7/14
Filed: 1966-05-27
Abstract: 1,112,145. Electrical supply systems for motor vehicles. VAUXHALL MOTORS Ltd. 25 May, 1967 [27 May, 1966], No. 24065/66. Heading H2H. An electrical supply system for motor vehicles comprises a battery 4 charged from an alternator 2, 5 by way of a rectifier bridge 3, the system including a relay 15 and a warning lamp 12 which is energized when an ignition switch 7-supplying the ignition system 9-is closed and the alternator is generating insufficient voltage to energize the winding 17 of the relay 15, the field winding 5 of the alternator being supplied, under these conditions, by way of the ignition switch 7 and contacts 19, 21 of the relay 15. When the alternator is generating sufficient voltage the winding 17 is energized whereupon contacts 14, 16 open to extinguish the warning lamp 12 and contact 21 changes over to contact 20, the supply to the generator field 5 then being independent of the ignition switch 7. A regulator 6 is connected with the field winding 5 to control the alternator output voltage.
Patent GB-503325-A (GB)
Title: Improvements in rockets, or projectiles, for use in throwing lines
IPC: F42B12/68
Filed: 1937-09-03
Abstract: 503,325. Rockets or projectiles for use in throwing lines. SCHERMULY, A. J., SCHER<M>ULY, C. D., and SCHERMULY, C. Sept. 3, 1937, No. 24088. [Classes 9 (i), 9 (ii), and 77] A rocket or projectile for use in throwing a line has the stick constituted by a rod or rods extending parallel to and rigidly mounted on the rocket and another rod pivotally connected to the rear end of the first mentioned rod or to each of the first mentioned rods respectively, to which one end of the line is connected As shown, the forward ends of a pair of diametrically opposed rods 3 are secured in a lug 2 on the rocket casing 1 whilst the rear ends of these rods are pivotally connected to a U-shaped rod 4 which carries an attachment 5, preferably of conoidal shape, to which the end of the line 6 is connected. A collar 7 secured to the rods 3 prevents lateral movement of the rocket. The rocket casing is removably secured in the lug 2 by means of a set-screw 9. If desired, the lug 2 may be dispensed with, in which case, the rods 3 are secured to the collar 7 by means of a set-screw. According to a modification, a single rod 3 is employed, on the rear end of which is pivotally mounted a second rod, the rear end of which is bent inwardly and has the attachment 5 secured thereto.
Patent GB-944805-A (GB)
Title: Improvements in or relating to rust-proof coverings
IPC: C09D5/08
Filed: 1960-07-11
Abstract: A rust-inhibiting paint comprises a mixture of substantially equal parts by weight of zinc cyanamide, zinc oxide and zinc-containing iron oxides (i.e. iron oxides containing up to 11% ZnO) dispersed in a siccative oil as binder, the binder oil having an acid number not exceeding 10 mg. NaOH per gram of oil.  The binder may be a mixture of boiled linseed oil and stand oil or a mixture of siccative oils reinforced by resins, e.g. cumarone resins and modified phenolic resins (e.g. rosin modified phenolaldehyde resin).  Turpentine oil, as solvent for the binder, aluminium stearate, as suspension agent, cobalt and lead naphthenates, as driers, and soybean lecithin, as wetting agent, may be present.
Patent GB-696562-A (GB)
Title: Apparatus for wrapping
IPC: B65B31/04
Filed: 1950-02-20
Abstract: 696,562. Evacuating packages. WINGFOOT CORPORATION. Feb. 20, 1950 [Oct. 22, 1949], No. 24224/51. Divided out of 696,546. Drawings to Specification. Class 94(i) A machine in which an article is enclosed between webs of heat-sealable material which are sealed together around the article, comprises a reciprocable nozzle which is connected via a conduit provided with a relief valve to a vacuum pump. The nozzle is inserted between the webs prior to the engagement of resilient sealing means therewith and is withdrawn just prior to the disengagement of the sealing means, whereby the latter press the webs tightly around the nozzle while the air is withdrawn and seal the opening formed by the nozzle after the withdrawal thereof. The machine described comprises two nozzles arranged on opposite sides of the webs and is the same as that described in the parent Specification.
Patent GB-284372-A (GB)
Title: Improvements in hat and like clips or holders for attachment to chairs in theatres and similar places
IPC: A47C7/64
Filed: 1927-07-26
Abstract: 284,372. May & Padmore, Ltd., and Hansen, O. July 26, 1927. Hat-holders. - A clip for holding hats on the back of a seat &c., comprising a box-like part 3 carried by or provided with a back portion having a downwardly extending part 7 against which is pressed, by a torsion spring, a gripping jaw 17 carried on a shaft 16 rotatably mounted on the sides of the part 3 and provided with an operating handle 19. One side of the part 3 may be extended to form a hook 20 to receive parcels and the other side provided with a clip 21 for an umbrella &c. The front of the part 3 is dished and is adapted to carry an advertising tablet 10. The top of the part 3 may be closed by a hinged ash-tray 8.
Patent GB-149146-A (GB)
Title: Improvements in composite electric signalling systems
IPC: H04M11/06
Filed: 1919-10-06
Abstract: 149,146. Western Electric Co., (Western Electric Co.). Oct. 6, 1919. Simultaneous telegraph and telephony.-In a combined telegraph and telephone system provided with loading-coils, the telegraph currents are of the same order of magnitude as the telephone currents, in order that, by their action upon the loading coils, they may not affect the amplitude of the telephone currents. A complete metallic circuit and repeaters are employed, and the telegraph currents have rapidly rising wave-fronts with rounded corners. To a telephone system 1, provided with loading coils 2 and repeaters 3, are applied telegraph apparatus 5, 5'. Series capacities 8 and a shunt inductance 9 prevent the telegraph currents from entering the telephone sets 4, 4<1>; and series inductances 10 and a shunt capacity 11 prevent the telephone impulses from entering the telegraph sets 5, 5<1> and serve to round the corners of the telegraph current impulses.
Patent GB-221365-A (GB)
Title: Improvements in or relating to detaching rollers for combing machines
IPC: D01G19/04
Filed: 1923-10-02
Abstract: 221,365. Rushton, J. L. Oct. 2, 1923. Combing-machines.-In a combing-machine in which the top detaching roller 5 is positively driven from the fluted roller 1 through a spur pinion 8, the co-operating pinion on the spindle 2 of the roller 1 is formed in sections 3 clamped in position by a collar 4 screwed on to threaded portions 3<a>.
Patent GB-840964-A (GB)
Title: Improvements in or relating to devices for tedding crop lying on the ground
IPC: A01D78/16
Filed: 1956-08-09
Abstract: 840,964. Tedding devices. VAN DER LELYN. V., C. Aug. 9, 1956 [Aug. 13, 1955], No. 24455/56. Class 6(3). A tedding device comprises rake wheels 30 rigidly mounted on an axle 16 which in turn is rotatably mounted on a tractor-drawn frame 8, the axle 16 being inclined to the travelling direction of the implement. The frame is attached to the tractor by a link 6 adjustably secured to the draw bar 3 of the tractor, and is further supported by ground wheels 20 and 24, both of which are pivotally mounted on the frame, means being provided for fixing the rearmost wheel 24 in any desired position. The axle 16 is rotated by a chain and sprocket arrangement 35, 36 and 37, the sprocket wheel 37 being driven from the power take-off of the tractor via a telescopic shaft 43 and universal joint 42. The rake wheels each comprise a disc 50 rigidly mounted on the axle 16 and to which spokes 52 and 53 are clamped by means of bolts 51. The spokes pass through a perforated rim 54 and are bent outside the rim in directions out of the plane of the rim to form supporting members for tines 57 and 58, the tines lying in a plane parallel to the plane containing the spokes. Specifications 840,965 and 840,966 are referred to.
Patent GB-963274-A (GB)
Title: Improvements in and relating to roof constructions for buildings
IPC: E04B7/12
Filed: 1961-07-06
Abstract: 963,274. Ventilators. W. J. SILBERKUHL, U. KASTL, and E. HAEUSSLER. July 6, 1961 [July 25, 1960], No. 24458/61. Heading F4V. [Also in Division E1] Prefabricated roof sections for factories comprise reinforced concrete shells 2, each in the shape of a rotated hyperbolic arc, which may have cover plates 7, and which are spaced apart by bridging plates 4. Holes 8 (Fig. 9) are left in the margins of the shells 2, and a central hole 9 is formed in each plate 7, and if end plates (Fig. 9) are provided between the shell 2 and the plate 7, air is drawn from the factory as shown by the arrows 10, the flow of air being aided, if necessary, by a blower. Water may be sprinkled, via nozzles 14 in pipes 13 (Fig. 8), on to the shells 2, in which case ceramic pipes 15 (Fig. 9) are cemented in the holes 8.