baber/WOPTO huggingface dataset:
Patent GB-815526-A (GB)
Title: High frequency electron discharge device
Inventor: VARIAN SIGURD FURGUS
IPC: H01J25/24
Filed: 1955-09-07
Abstract: 815,526. Velocity-modulated tubes. VARIAN ASSOCIATES. Sept. 7, 1955, No. 25665/55. Class 39(1). An electron discharge device has an evacuated body within which are located an electron gun adapted to produce an electron beam and an intense cavity resonator positioned for interaction with the electron beam, and, located outside the evacuated body, an external cavity resonator heavily coupled electrically to the internal cavity resonator through a vacuumsealing window permeable by electromagnetic wave energy and closing an aperture in one wall of the internal cavity resonator, means being provided for tuning the external cavity resonator and thereby tuning the device. The reflex klystron shown comprises a metal body 1 having an elongated opening 3 covered by a sheet of mica 5 which is sealed to a ledge 4 surrounding the opening 3. A metallic loading slug 7 is secured to a step 6 cut in the body 1 and projects over the mica 5. A metal wall 8 secured in the body 1 has a bore 9 covered by an accelerating grid 10 and supports a metal tube 11 closed by a resonator grid 12. A second resonator grid 15 is secured across a bore 14 in a metal wall 13 secured in the body 1. A metal cylinder 16 sealed to one end of the body 1 carries a metal cup 17 having an opening 18 in which the stem 19<SP>1</SP> of the reflector electrode 19 is sealed by a glass-to-metal seal 20. The electron gun assembly including a cathode button 21, heater 22, focussing ring 23 and supporting cup 24 is sealed to the other end of the body 1, the leads 26 being supported in a glass-to-metal seal 25. The tube is evacuated by means of a metal exhaust tube 2 which is then sealed off. An external rectangular cavity resonator 31 is secured to the tube by means of a bracket 36 provided with screws 33 which tighten the resonator and bracket on to two aluminium rings 29 and 30 resting in V-shaped grooves 27 and 28 encircling the body 1. The resonator 31 is provided with a tuning screw 34 and a circular output aperture 32.
Patent GB-593702-A (GB)
Title: Improvements in or relating to hypodermic syringes
IPC: A61M5/178
Filed: 1944-12-22
Abstract: 593,702. Hypodermic syringes. INJECTA SURGICAL CO., Ltd.. and COOPER, J. F. Dec. 22, 1944, No. 25721. [Class 81 (ii)] In a hypodermic syringe, the liquid container A is provided with cap portion B, on which are formed a plurality of helical grooves C; a cup member D, apertured at E, is provided on its inner wall with a plurality of projections G, stamped integrally out of the cup wall which, when member D is placed over cap B, engage grooves C and form a quick-action thread for tightening the joint.
Patent GB-918449-A (GB)
Title: Improvements in or relating to bathing headwear
IPC: A42B1/12
Filed: 1961-07-17
Abstract: 918,449. Bandeaux. BLANCHARD, I. S., and BOZIO, J. A. July 17, 1961 [April 10, 1961], No. 25742/61. Class 63. A bandeau comprises a strip 12 of waterabsorbent material, e.g. chamois, cotton, stitched to a strip 14 of waterproof material with one edge 18 folded around the edge of the strip 14. Ribs 20 are formed by inserting packing material between the strips and a tab 25 and tabs 26 carry complementary snap fasteners 24, 28 for adjusting the size of the band. The band is placed on the hairline with the strip 14 innermost and may be covered by a bathing cap of any known form.
Patent GB-804331-A (GB)
Title: Improvements in or relating to brushes
IPC: A46B7/04
Filed: 1955-09-08
Abstract: 804,331. Brushes. WHYTE, G. T., and GASC, P. H. Sept. 7, 1956 [Sept. 8, 1955], No. 25748/55. Class 19. An integral moulding comprising bristles 7 and a flexible backing sheet 6 having parallel side portions 8, 9 is secured on a moulded stock 1 by sliding the side portions 8, 9 into complementary slots 5 in the stock. The moulding is bowed outwardly of the stock I when secured thereon due to the distance between the portions 8, 9 being greater than the direct distance between the slots 5.
Patent GB-831238-A (GB)
Title: Endless track for cross country vehicle
IPC: B62D55/253
Filed: 1957-08-15
Abstract: 831,238. Endless track vehicles. MECATEC S. A. Aug. 15, 1957 [Sept. 8, 1956], No. 25803/57. Class 79(1) An endless track comprises a continuous band 1, Fig. 2, of rubber with a fabric reinforcement 2, the external face of the band having transverse grooves 3 containing driving members 6 which are connected through the band by bolts 20 to guides 4, Fig. 3, having interleaved pairs of extensions 12, 14 to oppose lateral deformations of the band. The driving members 6 are U-shaped in cross section to engage the sides 8 of the grooves 3 and have tongues 10 at each end for engagement with the teeth 24, Fig. 4. of the driving sprockets 25. The guides 4 are located on the band 1 by channel section plates 17 lying in grooves 18 on the band 1 and engaged at the sides by flanges 15 of the guides 4. The driving sprockets 25 comprise hubs 21 with a pair of cheeks 22 providing a groove 23 for the guide extensions 12, 14. The portion of track in contact with the ground is guided and supported by similar rollers (not shown) which are freely rotatable on hubs 21 and have no driving teeth 24.
Patent GB-786494-A (GB)
Title: Improvements in or relating to the hulling and cleaning of grain
IPC: B02B3/12
Filed: 1954-09-06
Abstract: 786,494. Hulling and cleaning grain. JACOBSON, S. Sept. 6, 1954 [Sept. 7, 1953], No. 25828/54. Class 58. In apparatus for hulling and cleaning grain, the grain is fed from a hopper 16 through a flap valve 17, a winnowing chamber 9 and a conduit 15 into a huller 1, wherein it is subjected to the action of a jet of air issuing from a nozzle 2, preferably at supersonic speed. The air carries the grain through a conduit 4 and a decelerating chamber 5 into a cyclone 6, from which air escapes through an outlet 7, and the grain returns to the chamber 9, where it meets a winnowing upward current of air, which enters the chamber through a screen 12 and carries chaff to a receiver 14 removably attached to the lower end of a cyclone 13, whose upper end is connected to a fan 10. By actuating a flap valve 20, hulled grain can be deflected through a branch conduit 18 into a detachable receiver 19.
Patent GB-1439676-A (GB)
Title: Stabilised inverters
IPC: H02M7/523
Filed: 1973-05-30
Abstract: 1439676 Inverting ACCUMULATORENFABRIK OERLIKON 30 May 1973 [30 May 1972 31 May 1972 13 Sept 1972] 25838/73 Heading H2F In a sine wave inverter having an oscillatory circuit comprising capacitor 13 connected across a winding 24 of the output transformer 21 and, an inductor 15 connected in series with the D.C. supply 19 and having at least two controlled rectifiers 11, 12 arranged periodically to reverse the direction of current in the winding 24, the output is stabilized by feedback via a filter choke 16 and rectifiers 26, 27 to part of the winding on inductor 15 located between the end adjacent the D.C. supply 19 and an intermediate tapping on the inductor 15. As described, the main thyristors 11, 12 are triggered alternately from a source 10 so as to provide a sine wave across the load 20 such as a motor. Stabilizing feedback is obtained via a double-winding choke 16 and rectifiers 26, 27. The two feedback paths are in quadrature hence the current flowing in inductor 15 has a fundamental of four times the output frequency so that rapid stabilization is achieved. Further feedback is included via thyristors 28, 29 triggered by a device 25 in response to the output current, sampled by means of a current transformer (not shown) or across resistor 23. This enables the effective voltage ratio between source 19 and load 20 to be adjusted. In Fig. 2 (not shown) rectifiers 26, 27 are connected to four tappings on winding 24. In Fig. 3 (not shown) a single winding choke 16 is employed connected between two diodes fed from tappings on winding 24 and two further diodes fed from the D.C.-side winding portion of inductor 15.
Patent GB-998446-A (GB)
Title: Manufacture of cement
Inventor: HEILMANN THORBJORN
IPC: C04B7/36
Filed: 1963-07-01
Abstract: Hydraulic cement is prepared by the closed circuit grinding of cement clinker in which the ground material is separated into at least three fractions having different degrees of fineness, two of which fractions have the fineness of ultrafine cement (6000-9000 cm.2/g.) and Portland cement (3000-5000 cm.2/g.), respectively, and are removed as end products, the remaining fraction or fractions being returned for further grinding. Several methods of obtaining the various fractions are described.
Patent GB-745424-A (GB)
Title: Improvements in and relating to goniometers
IPC: G01S1/02
Filed: 1951-11-08
Abstract: 745,424. Impedance transformers. SVENSKA AKTIEBOLAGET GASACCUMULATOR. Nov. 8, 1951 [Nov. 21, 1950], No. 26182/51. Class 40 (8). [Also in Group XL (c)] In a radiogoniometer for use in a radio direction-finder, the stator elements comprise four short-circuited transmission lines and the rotor element comprises a rotatable shortcircuited transmission line coupled inductively to the stator elements. The Figure shows an axial section wherein two of the stator elements are provided by conductors 12 and 14 connected at their ends to the conductive housing 29 which provides the return leads of the transmission lines. The rotor element comprises hollow conductors 16 and 17 which are connected together by a conducting plate 31, the output from the rotor being taken from the other end of the conductors and led through one of them as indicated by the broken lines in the Figure. The lines are capacity loaded by elements 30 which as applied to the stator elements are connected to the housing 29 and surround the conductors 12, 14 and as applied to the rotor elements comprise a series of metal plates capacitively coupling together the conductors 16 and 17. The lines are arranged to be an effective quarter-wavelength long at a mean frequency within the band to be received. It is stated that a goniometer as so far described does not give an accurate sinusoidal law for the variation of output with angular setting; an improved law may be obtained by replacing each conductor, i.e. 12, 14, 16, 17, by a pair of slightly circumferentially displaced conductors, Fig. 4 (not shown).
Patent GB-688720-A (GB)
Title: Improvements in or relating to an arrangement for breaking direct current high tension circuits
IPC: H01H33/59
Filed: 1950-10-27
Abstract: 688,720. Arc-rupturing in switches. SIEMENS & HALSKE AKT.-GES. Oct. 27,1950 [Oct. 29 1949; Aug. 7, 1950], No. 26312/50. Class 38 (v) An arrangement for breaking a high-tension D.C. circuit consists in superimposing on section of the line an alternating current derived from the direct current to cause a periodic resultant current flow through zero, and then in opening the line automatically at zero current by a switch or discharge valve. A D.C. source 1, Fig. 1, supplies through lines 3 a consumer 2. To interrupt the circuit a lowpower switch 4 is opened to divert the load current through a circuit comprising a discharge valve 6, Poulsen arc generator 13, 14, and an inductance 8. The arc generator 13, 14, generates A.C. in an oscillatory circuit 17, 18, upon separation of auxiliary valve 6 is reduced to zero and the valve discharge electrodes 15, 16, whereby the current through the ceases and the circuit interruption is effected. A further valve 7 is preferably provided to prevent premature interruption of the oscillations. The frequency of the A.C. is sufficiently low, e.g. 200 cycles/sec., to permit de-ionisation of the valves and prevent recurrence of the discharge. The inductance 8 prevents interference by the A.C. of the D.C. circuit. To ensure that the switch 4 opens on a low voltage, the valves 6, 7, may have low voltage starting electrodes which are initially connected in circuit through a switch 71. Additional valves 19, Fig. 2, may be provided, which are made conducting only when circuit interruption is required, to separate the oscillatory circuit 17, 18, from the D.C. high tension when switch 4 is open. Valve 7 and one of the valves 19 may be structurally united and have a common cathode 197. In order to limit the D.C. to a value which can be reduced to zero by the A.C., e.g. in the case of a short-circuit, a resistance 20 may be connected in circuit by a switch 21; also the appropriate amount of resistance may be automatically connected in by relays.
Patent GB-841002-A (GB)
Title: Improvements in or relating to knives
IPC: B26B3/00
Filed: 1957-08-21
Abstract: 841,002. Electrically heated knives. EVERALL, C. Nov. 18, 1958 [Aug. 21, 1957], No. 26352/57. Class 39(3). [Also in Group XIV] A butter-spreading knife comprises a hollow handle made in two longitudinal parts and enclosing a junction box 12 which connects the end of a three-core cable 13 with the ends 14, 15 of a resistance wire 20 located in the blade 16. The resistance wire is wound on a mica former and insulated by mica shields 21 and the blade-shank is secured to the earth wire 19 of the cable. Screws 17 secure the parts of the handle together and the blade-shank and junction box in the handle. A support to raise the blade from the table surface may be pivoted on the handle.
Patent GB-852922-A (GB)
Title: Color formers containing a m-alkylphenoxyacyl group
IPC: G03C7/305
Filed: 1958-08-18
Abstract: 4:6-Dichloro-2-[a -(31-n-pentadecylphenoxy) -n-butyramido]phenol is prepared by reacting a -(3-n-pentadecylphenoxy)n-butyric acid chloride with 2-amino-4;6-dichloro-phenol.  The following amines may be used instead of the above amine ; N-(1-hydroxy-2-naphthoyl)-1;6-hexanediamine and its 4-chloro derivative, m-nitroaniline (using the free acid and phosphorus trichloride instead of the butyric acid chloride), 1-phenyl-, 1-(21-chlorophenyl- or 1-(21;41;61-trichlorophenyl) -3-amino-5-pyrazolone, a -benzoyl-m-amino-acetanilide, N-{p-[N1-benzyl-N1-(p-tolyl)sulphamyl] phenyl}-a -(p-aminobenzoyl)acetamide, and 4-chloro-3-nitroaniline, to yield respectively, N-(1-hydroxy-2-naphthoyl)-N1-[a -(3-pentadecylphenoxy) -n-butyryl]1;6-hexanediamine and the corresponding compound having a 4-chloro group in the naphthyl nucleus, N-[a -(3-pentadecylphenoxy) -n-butyryl]-m-nitroaniline (the nitro group then being reduced to the amine), 1-phenyl-3-[a -(31-pentadecylphenoxy)-butyramido]-5-pyra zolone and the corresponding 1-(21-chlorophenyl) and 1-(21;41;61-trichlorophenyl) derivatives, a -benzoyl-3-[a -(31-pentadecylphenoxy) n-butyramido]acetanilide, N-{p-[N1-benzyl-N-(p-tolyl)sulphamyl phenyl} - a  - {p-[a -(3-pentadecylphenoxy)butyramido] benzoyl} acetamide and N-[a -(3-pentadecylphenoxy)n)-butyryl]-3-nitro-4-chloroaniline (the nitro group then being reduced to the amine). N-(1-Hydroxy-2-naphthoyl)-N1-[a -(3-pentadecylphenoxy) -n-butyryl]-m-phenylene diamine is prepared by reacting phenyl 1-hydroxy-2-naphthoate with N-[a -(3-pentadecylphenoxy)-n-butyryl)-m-aminoaniline.  a -Benzyl-6-chloro-3-[b -(31-pentadecylphenoxy) -n-butyramido]acetanilide is prepared by heating ethyl benzoylacetate with N-[b -(3-pentadecylphenoxy)-n-butyryl]-3-amino-4-chloroaniline. a -(3-n-Pentadecylphenoxy)-n-butyric acid is prepared by adding a -bromobutyric acid to m-pentadecylphenol in ethanolic sodium hydroxide.  Treatment with thionyl chloride gives the acid chloride. N-(1-Hydroxy-2-naphthoyl)-1;6-hexanediamine is prepared by reacting phenyl 1-hydroxy-2-naphthoate with excess hexamethylene diamine in cold benzene.  The 4-chloro derivative may be similarly prepared.  a -Benzoyl-m-amino-acetanilide is prepared by reacting ethyl benzoylacetate with m-nitro-aniline and reducing the nitro compound formed with platinum oxide catalyst.  N - {p-[N1-Benzyl-N1-(p-tolyl)sulphonamyl] phenyl}-a -(p-aminobenzoyl)acetamido is prepared by reacting ethyl p-nitrobenzoyl acetate with N1-benzyl-N-(p-tolyl)sulphanilamide followed by catalytic reduction of the nitro group.  The following compounds also are referred to: 6-chloro-a -(21-methoxybenzoyl) -3-[a -(31-pentadecylphenoxy)-n-butyramido]acetanilide, N}-2-chloro-4-[a -(3-pentadecylphenoxy)-n-butyramido] phenyl}-1-hydroxy-2-naphthamide, N{-6-chloro-3-[a -(3-pentadecylphenoxy) -n-butyramido]phenyl}-1-hydroxy-2-naphthamide, 4-chloro-2-[a -(31-pentade-cylphenoxy)n-butyramido]phenol, 4;6-dichloro-2-[a -(31-pentadecylphenoxy)acetamido]phenol, and 4-chloro-3-methyl-2-[a -(31pentadecylphenoxy) -n-propionamido]phenol.
Patent GB-345607-A (GB)
Title: Improvements in or relating to vehicles
IPC: B60G99/00
Filed: 1930-09-06
Abstract: 345,607. Road vehicle body supports. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Sept. 6, 1930, No. 26653. Convention date, Sept. 6, 1929. [Class 108 (ii).] The body of a vehicle is mounted on the frame by several universal joints in which linings or insertions g, h, of rubber or like elastic material are provided, between the pivot pins e, f, and the bearings for the pins. The pins e, f are carried respectively by brackets k secured to the body and brackets m, n, secured to the frame b. The rubber linings are preferably considerably deformed when inserted in position.
Patent GB-762648-A (GB)
Title: Process for the production of a fodder from straw or other lignocellulose-containingmaterials by alkali treatment, and, if desired, mixing of the alkali-treated materialwith other feedstuffs
IPC: A23K50/20
Filed: 1954-09-14
Abstract: Ruminant or horse fodders are made by treating dry or semi-dry lignocellulose containing raw materials e.g. straw, reeds, cottonseed hulls, sawdust, bark, bagasse, with dry alkali, without subsequent leaching.  The product may be mixed with other feeds; it may be added to ensilable feeds for increasing the dry matter content, e.g. to 28 per cent.  The initial or alkali-treated material is preferably heated to 100 DEG C. or higher e.g. by steaming, the semi-dry material being dried by vacuum or superheated steam.  Gaseous ammonia, quick or slaked lime are the preferred alkalis; after treatment the ammonia may be volatilised off under reduced pressure, a solid alkali may be neutralised by acid e.g. phosphoric acid, or, when lime is used, by carbon dioxide.
Patent GB-1339831-A (GB)
Title: Apparatus for gas analysis
IPC: G01N21/37
Filed: 1971-04-19
Abstract: 1339831 Infrared gas analyzers E JAEGER 19 April 1971 [17 April 1970] 26799/71 Heading G1A [Also in Division G2] An infrared gas analyzer comprises a radiation source associated with a rotary shutter and a beam-splitting arrangement to direct radiation to test and reference cells. The infrared source comprises a tungsten filament 16 in recess 14 in a metal block 12, the recess being closed by mica window 18 and the issuing beam being formed into a rectangular cross-section by opening 20. Synchronous motor 40 drives a cylindrical shutter device 42 made up of three strip members each of 60 degrees arc circumference in width, Fig. 2 (not shown), so as to chop the radiation beam and allow A.C. amplification of the detector output. The beam-splitter comprises a metal block 26 provided with two diverging bores 28, 30 having highly polished walls. The holes may be closed at their ends by windows 50, 52 and filled with dummy gas, so as to aid reduction of sensitivity to gas components not of interest. Screws 46 are provided for adjustment of the intensity of the test and reference beams. The test and reference cells 32, 34 are associated with a radiation detector 36 of the gas-filled capacitative membrane type.
Patent GB-1008503-A (GB)
Title: Process and apparatus for the surface treatment of articles
Inventor: EVANS DEWEY MAIRE
IPC: B22D29/00
Filed: 1962-07-12
Abstract: One or more jets of liquid are sprayed on to a metal surface for cleaning, removal of scale &c. such that the jet is repeatedly cut off and restarted using a stream of liquid maintained at a substantially high velocity but repeatedly diverted from and returned to said jet to give jet pulses at a predetermined pulse repetition rate whereby surface treatment is made more effective by drainage of the liquid during the periods of interruption of the jets. Specification 965,551 is referred to.
Patent GB-976709-A (GB)
Title: An improved process for the manufacture of refractory bricks and materials
IPC: C04B33/132
Filed: 1961-07-25
Abstract: Refractory bricks are produced from crushed burnt fireclay and crushed bonding clay by a process in which the moisture required for producing a plastic mixture of said constituents suitable for a subsequent shaping operation is provided wholly or partly in the form of steam and the constituents are mixed without the application of a compacting pressure.  Preferably the crushed fireclay is moistened with steam, the bonding clay is added and the rest of the steam is introduced, the material being maintained at a temperature of 40-70 DEG  C. Instead of fireclay other clean materials such as sillimanite, corundum, bauxite, silicon carbide, minerals containing zirconium oxide shale clays or flint clays may be used.
Patent GB-716507-A (GB)
Title: Improvements in typographical appliances
IPC: B41B1/04
Filed: 1951-11-16
Abstract: 716,507. Printing-surfaces. MIDDLETON, J. Nov. 13, 1952 [Nov. 16, 1951], No. 26937/51. Class 100 (2) A metal mounting quad 1, Fig. 1, of height 0.846 inches, with a width in one direction of 3 ems (36 point), and having portions 2 measuring 1 em by 1 em cut out, forming a tenon 3, the overall width in the other direction being also 3 ems, so that the width to the tenon is 2 ems. A base for mounting plates or halftones is formed from sixteen such quads 1, Fig. 3, the spaces being filled by wooden quads 4. The quad is cast by using a longer mould blade in an existing mould, in the example described the blade being one pica longer to allow for the ejection of the quad.