baber/WOPTO huggingface dataset:
Patent GB-1395638-A (GB)
Title: Waveguide arrangements
IPC: H01P5/08
Filed: 1972-07-11
Abstract: 1395638 Waveguide mode filters NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP 11 July 1972 [19 July 1971] 32320/72 Heading H1W In order to suppress TE 02  mode energy in a waveguide for transmission of the circular electric TE 01  mode, the waveguide is divided, over a certain length, by a diametral septum into two parts within which the TE 02  mode velocities are unequal whilst the TE 01  mode velocities are equal. As shown in Fig. 2, a septum 2 divides the circular waveguide into a lower part 20 of radius R 0  and an upper part of smaller radius R<SP>1</SP>. As a result of the unequal radii, the TE 02  mode propagates at different velocities in the two parts whereby a differential phase change of 180 degrees is produced with consequent destructive interference. The upper part 10 contains an elongated dielectric U- shaped element 3 of radius R 3 =0À5426 R<SP>1</SP> at which radius the TE 01  mode has maximum electric field strength and the TE 02  mode zero field strength. The effect of the element 3 is to equalize the velocities of the TE 01  mode in the two parts of the waveguide whereby energy in this mode is transmitted unaffected to the rest of the system. The septum may have pads of dissipative material at its extremities for absorption of the unwanted TE 02  component (Fig. 9, not shown). The element 3 may be replaced by a pair of rods adjacent the septum (Fig. 6a, not shown). The two waveguide parts 10, 20 may have equal radius and the lower part 20 may be loaded with a lining of dielectric or magnetic material to produce the necessary differences in phase velocities (Fig. 6b, not shown). The dielectric element 3 may be replaced by a magnetic element having a radius R = 0À3428 R<SP>1</SP> which has the same effect.
Patent GB-1197070-A (GB)
Title: Electron-ion Stream Device
IPC: H01J37/06
Filed: 1967-07-13
Abstract: 1,197,070. Electron-beam apparatus. SANDERS ASSOCIATES Inc. 13 July, 1967 [13 July, 1966], No. 32363/67. Heading H1D. Electrons are focused on to a crucible 10 by means of a conical member 16 made e.g. of heat-resistant glass or fused quartz. The crucible is at a much higher potential than the emissive cathode 15 and hence constitutes an anode. The hollow cathode may be filled with a coolant and has a concave emissive surface having a focal point at the anode. By means of an exhaust pump 22 and gas supply 23 a constant pressure of argon between 10-100 micron Hg. is maintained. Gas evolved by the contents of the crucible 10 is removed by the pump. The cone 16 may be replaced by two overlapping cones, that nearest the crucible being made of a more refractory material. Alternatively, to achieve the same effect, a single cone may have portions made of different materials. The apparatus may be used as a source of ultra-violet or infra-red radiation, or for etching or machining materials, in which case the conical member may be movable.
Patent GB-1080734-A (GB)
Title: Improvements in or relating to front loaders for tractors or like vehicles
IPC: E02F3/627
Filed: 1964-08-10
Abstract: 1,080,734. Tractor load-handling attachments. ETABLISSEMENTS FAUCHEUX. Aug.10, 1964 [Aug. 9, 1963; July 1, 1964], No. 32436/64. Heading B8H. [Also in Division E1] A loader adapted to be detachably mounted on the front of a tractor comprises a fixed frame, consisting of cross-bars 10, 12 extending between side members 11, and a pivoting boom, consisting of side members 24 pivotally supported on the cross-bar 12 and supporting a fork or bucket 32, the arrangement being such that, when the loader is mounted on the tractor and the boom is in its lowermost position, the fork or bucket engages the ground and the rear of the side members 24 of the boom abuts against the cross-bar 10 of the fixed frame. When not mounted on the tractor, the loader is adapted to be supported, as shown, with the fork or bucket 32 on the ground, by telescopic struts 14, 15 which are connected by universal joints 21 to the fixed frame. When the tractor is to be coupled to the loader the tractor is driven forward to engage a pair of shackles 2 mounted thereon with the cross-bar 10, which is then locked in position. The struts 14, 15 are then shortened, raised from the ground and pivotally connected to the tractor at 3. The boom is lifted by an hydraulic ram comprising a cylinder 37, pivotally supported at 38 between cross-bars 25 of the boom, and a piston 40 pivoted to the cross-beam 10. The loader may, alternatively, be mounted on the tractor by the system disclosed in Specification 1,080,735.
Patent GB-1141530-A (GB)
Title: Salicylic acid derivatives
IPC: A61K31/185
Filed: 1966-07-19
Abstract: 1,141,530. Salicyclic acid derivatives. J. P. M. RAUDNITZ, and H. WAHL. 19 July, 1966, [20 July, 1965], No. 32437/66. Heading C2C. Novel compounds of formula in which n is an integer of at least 3, X is - NRR<SP>1</SP> and R and R<SP>1</SP> are each hydrogen or lower alkyl, and pharmaceutically acceptable salts thereof, are prepared by reacting the required salicylamide with an alkane sultone in the presence of an alkali metal hydroxide to form an alkali metal salt of an above novel compound, converting the salt to a corresponding novel free acid and treating the acid with a base to form a salt thereof. Therapeutic compositions used in the relief of pain contain the above novel compounds and may be in a form suitable for oral or parenteral administration.
Patent GB-464150-A (GB)
Title: Improvements in or relating to bedsteads fitted with back-rests
IPC: A47C20/04
Filed: 1935-11-22
Abstract: 464,150. Bed-rests. ADAMS, E., UPTON, A. T., KEMP, W., WHITFIELD, C. G., and WHITFIELD'S BEDSTEADS, Ltd. Nov. 22, 1935, No. 32446. Addition to 435,886. [Class 52 (ii)] In a bedstead fitted with a back-rest comprising a frame or grid 1 pivotally supported on side members 7 which have members 13 hingedly jointed to them, and which together with the members 13 are slidably disposed in the head corner posts 2 of the bed or in tubular members 14 secured to the posts 2, springs 25 are provided so that when the frame 1 is disengaged from catches it is raised by these springs 25 through the medium of the supporting members 7, 13. The joints 12 between the members 7 and 13 then project above the tubes 14 or the corner posts 2 so that the frame 1 can be moved to the position shown to act as a back rest. The members 7 are bent inwardly and pass into the tubular top rail 3 of the frame the adjacent ends of the members 7 being squared and fitted into opposite ends of the square bore of a coupling sleeve arranged in the rail 3 and having an outer cylindrical surface. A clamping screw may be provided in a boss 10 in the rail 3 to co-operate with the coupling sleeve to lock the frame 1 in position.
Patent GB-1535981-A (GB)
Title: Underground roadway or tunnel support
IPC: E21D11/15
Filed: 1976-08-04
Abstract: 1535981 Supporting tunnels COAL INDUSTRY (PATENTS) Ltd 29 July 1977 [4 Aug 1976] 32452/76 Heading E1F A method of supporting a tunnel comprises installing a rigid support 2, locating a deformable container 6 in a void existing between the support and the tunnel surface filling the container 6 with flowable material, e.g. cement, to urge the container into contact with the support 2 and the tunnel surface, extending a deformable limb 30 associated with the container 6 towards a newly erected support and the tunnel surface, and retaining the limb in the extended position when a container 6 associated with the newly erected support is filled with flowable material. Preferably the limb 30 is filled with flowable material, via inlet 32.
Patent GB-338699-A (GB)
Title: Improvements in or connected with weight and price indicators for use with weighing apparatus
IPC: G01G23/22
Filed: 1929-10-26
Abstract: 338,699. Avery, Ltd., W. & T., and Timson, W. Oct. 26, 1929. Computing-apparatus.-In a weight and value indicator for weighing-apparatus, particularly for postal purposes, the value, chart 6 is formed separately from the weights chart 4 and is secured in a chart housing 5 so as to leave a gap 7 within which the extremity 9 of the weight indicator 8 may move. By this arrangement errors due to parallax or shadow are avoided, and substitution of charts necessitated for example, by changes of postal rates or regulations are facilitated. The indicator 8 carries the names of various countries and the value chart 6 bears concentric rows of monetary values corresponding to the postal rates.
Patent GB-1471342-A (GB)
Title: Cable ties
IPC: F16L3/233
Filed: 1975-03-11
Abstract: 1471342 Bundling straps BOWTHORPE HELLERMANN Ltd 11 March 1975 [12 March 1974] 32557/76 Divided out of 1471341 Heading E2B A one-piece plastics bundling strap comprises: a toothed strap 12; an apertured head 14; a pawl 28 flexibly hinged to a wall of the aperture; at least one rib 42 extending from the pawl to the wall; and an abutment surface 40 of the aperture opposite the tooth or teeth of the pawl. The tie is similar to that described and claimed in Specification 1471341.
Patent GB-211596-A (GB)
Title: Improvements in or relating to attachments to sewing machines
IPC: D05B85/06
Filed: 1922-11-29
Abstract: 211,596. Cranage, H. B. Nov. 29, 1922. Blind-stitching machines; blind-stitching attachments.-An attachment for application to an ordinary sewing-machine for producing blindstitching comprises a curved needle and coacting looper making chain stitches, arranged above the ordinary work-plate of the machine and actuarted by the needle-bar. The mechanism is mounted on a bracket-member 4 secured by a set screw to the presser-bar 2. The curved needle 28 is mounted in an arm 22 pivotally mounted on the. bracket and connected by a link 48 of adjustable length to a stud carried by the lower arm 40 of a bell-crank lever 38, 40, in the arm 38 of which is a slot 37 engaged by a roller 35 mounted on the needle-bar 1. A helical looper 71 is carried by a curved spring-controlled arm 67 mounted on a boss 68 pivoted on a stud carried by a slotted link 59. This link is pivoted on the stud carried by the arm 40 and has a curved slot 62 engaging a roller 16 on the bracket. The looper is thus moved to and fro synchronously with and in the plane of the needle. An arm 76 projecting from the boss 68 carries a ball-stud 80 which is moved in contact with a cam-surface 18 fixed to the bracket and formed with an inclined portion 19 which causes a lateral deflectionof the arms 76, 67 as the needle recedes from its stroke and engages the looper in the needleloop. Owing to the feed of the material the loop is carried by the looper diagonally across the material into a position for engagement by the needle on its next stroke as indicated in Fig. 58. The take-up comprises a slotted arm 125 secured on the link of the lever 38 and moving between spaced perforated lugs 128 carried by the bracket. A presser-foot 105, Fig. 15, is pivoted to a spring- restrained arm 98 pivoted in lugs carried by a. plate 83 depending from the bracket. The presser-foot is accommodtated in a slot in a workplate 87 secured to the plate 83 and having a groove for the needle and clearance slots for the looper. A plate 109, Fig. 27, fixed to the bed-plate 110 of the primary machine carries a work-bender 114 which projects between the forked ends of a plate spring 112 mounted adjacent to a slot 111 through which the ordinary feed-dog works. In a modification the plate spring is replaced by a forked spring-restrained plate mounted on a member pivoted to the underside of the plate 109.
Patent GB-184412-A (GB)
Title: Improvements in radiators especially adapted for use in the cooling systems of internal combustion engines
IPC: F28D1/03
Filed: 1921-12-06
Abstract: 184,412. Magni, U. Dec. 6, 1921. Plate apparatus.-In a radiator for use with internal-combustion engines vertical water-tube units 20 are formed by a pair of curved plates 1, soldered together at their edges 7, and having horizontal folds 6 which are open between their edges to form pockets 60, The units are separated by a perforated or slotted plate 8 which has grooves 11 in which the edges of the folds 6 rest, and grooves 10 on the opposite side containing solder to secure the folds of the next unit. The grooves 11 alternate to opposite sides of the plate 8.
Patent GB-1308201-A (GB)
Title: Method of preparing phthalic acids
IPC: C07C51/265
Filed: 1970-07-06
Abstract: 1308201 Terephthalic acid SOC ITALIANA RESINE SpA 6 July 1970 [7 July 1969] 32726/70 Heading C2C A process for the catalytic oxidation of p-xylene in the liquid phase to form terephthalic acid is characterized by a first stage of reaction carried out at temperatures of 150 to 220 C. and pressures up to 30 atmospheres, in which air is fed to a reaction mixture containing p-xylene, acetic acid, a catalytic salt of cobalt or manganese and an alkali metal acetate, the initial weight ratio of acetic acid to p-xylene being between 2 : 1 and 6 : 1, and air supplied in quantities such that the oxygen level is equal to or up to 30% in excess of what is theoretically required to convert the p-xylene into p-toluic acid and by a second stage of reaction carried out at temperatures at least 30 C. lower than those used in the first stage and at pressures up to 30 atmospheres, in which the oxidation is completed, oxygen or a gas containing more than 90% of oxygen being fed to the partially reacted mixture derived from the first stage, to which has been added an organic compound containing one or more keto groups in the molecule, the quantity of acetic acid being 6 to 12 times by weight related to the p-xylene put into the first stage. In the example methyl ethyl ketone is employed in the second stage.
Patent GB-894143-A (GB)
Title: Improvements in or relating to ear tags for marking livestock
IPC: A01K11/00
Filed: 1959-09-25
Abstract: 894,143. Seals. BRIERLEY, C. Sept. 12, 1960 [Sept. 25, 1959], No. 32746/59. Class 146(2) An animal identification tag comprises a pair of elongated, circular or like flat tabs 11, 12, one tab having towards one end an upstanding headed spike 13 and the other, towards one end, a hole 15 to receive the spike. The tabs are made of a sufficiently hard but non-brittle nylon, chamfered on all edges which face that part of the animal to which the tag is to be fixed, and the diameter of the shank of the spike being such that the two tabs are loose.
Patent GB-300242-A (GB)
Title: Improvements in and relating to annealing furnaces
IPC: C21D9/56
Filed: 1928-11-09
Abstract: 300,242. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Nov. 9, 1927, [Convention date]. Resistance furnaces.-In an electrically-heated furnace for the continuous annealing of wire in an atmosphere of hydrogen or other light protective gas, a n approximately right-angled bend 7 is provided at the upper end of the inclined heating-tube 9 for preventing escape of the gas. The material to be annealed enters through the extension 7, which extends downwards to a point at or below the level of the lower end of the heating-tube. The gas is passed through a casing surrounding the heat-resistances 10, and is delivered to the tube at the inner angle of the bend.
Patent GB-1246222-A (GB)
Title: Method of forming thermoplastic polymer shapes
IPC: B29C67/00
Filed: 1969-06-30
Abstract: 1,246,222. Moulding thermoplastic polymers. SUN OIL CO. 30 June, 1969 [18 July, 1968], No. 32863/69. Heading B5A. [Also in Divisions B2, C3 and D1-D2] Articles are prepared from finely-divided non- fluorine containing thermoplastic polymer A by (i) making a heterogeneous composition 10-99 parts by wt. of the polymer A with 1-90 parts of a carrier which may be petroleum wax, synthetic wax, a liquid hydrocarbon with a molecular weight > 200 or another thermoplastic polymer B and which has a melting point at least 20‹ F. lower than that of A, a viscosity just above its melting point of # 1/10 that of A just above its melting point and substantial non- absorbability of A by the carrier below the melting point of A, but substantial absorbability thereof above the melting point of A, (ii) mixing to form a uniform dispersion above the melting point of the carrier but below the melting point of A, (iii) shaping within this temperature range and (iv) heating to fuse the particles of A. The carrier may be prevented from draining from the article during (iv), forming a homogeneous structure or allowed or caused to drain therefrom to form a porous structure. The material may be extruded, being fused as it passes through the die orifice, or applied to sheets and fused by application of heat and pressure.
Patent GB-1415444-A (GB)
Title: Electromagnettically controlled valves
IPC: F16K31/06
Filed: 1973-07-10
Abstract: 1415444 Valves V S SCHERBAKOV and I A GRUZINTSEV 10 July 1973 32893/73 Heading F2V [Also in Division G3] A method of actuating a solenoid valve comprises applying a pulse to the electromagnetic coil of the solenoid valve such that the duration of the pulse is merely sufficiently long for remanent magnetization to hold the valve in one position following termination of the pulse, and sending a reversed polarity pulse merely sufficiently long to demagnetize the circuit when putting the valve in another position. The temperature of the fluid is sensed by a sensor 1, any deviation from a reference valve being used as a signal to a generator 5 which converts the error signal to a short duration pulse of appropriate polarity which is then applied to a solenoid valve 11 of a compressor 12. The compressor is controlled in dependence upon the temperature of the fluid.
Patent GB-790664-A (GB)
Title: Improvements in or relating to means for attaching cutter picks to their supports
Inventor: MACRAE RONALD LOUIS JOHN
IPC: E21C27/26
Filed: 1955-11-17
Abstract: 790,664. Mineral  mining apparatus. COAL INDUSTRY (PATENTS), Ltd. Nov. 15, 1956 [Nov. 17, 1955], No. 32945/55. Class 68(1) In a machine for cutting, bursting or loading mineral tools 15 are attached to supports 13, e.g. chains, discs, drums or blades, by the tightening by a wedge 27 of spacers 16-23 against the shanks of the tools 15 which together with the spacers are within channels 14 formed in the supports 13. Various configurations and dispositions of channels, spacers, tools and wedges are described.
Patent GB-1501161-A (GB)
Title: Water taps and the like
IPC: F16K21/00
Filed: 1976-07-15
Abstract: 1501161 Valves T H CLARK 15 July 1976 [7 Aug 1975] 32970/75 Heading F2V An adapter 15a, for use with a water tap to provide an additional outlet 22, comprises a body 16a having a screwed portion which, after removal of the tap head, jumper and washer assembly 10, screws into the tap body and seals 23 against the tap body seat and a bore 20 which opens via a valve seat 21a into a chamber 19 which is internally threaded to receive the tap head assembly 10. The outlet 22 is circular in cross-section allowing a hose pipe to be attached without leaking. The outlet 22 may open into the bore 20 or chamber 19, Figs. 2 and 4 (not shown), and be controlled by a stopcock 40. An additional bore or bores 35 lead from the chamber 19 to the tap outlet 4. The tap head assembly 10 can be the one provided with the tap or one provided with the adapter, Fig. 4 (not shown), and have a larger size washer (8b) sealing the bore 35 and having holes (46) allowing flow from the bore 20 to the chamber 19 in the closed position of the valve.
Patent GB-857609-A (GB)
Title: Improvements in and relating to stapling machines
IPC: B25C5/16
Filed: 1957-10-22
Abstract: 857,609. Stapling machines. GOODMAN & VANDERVIEREN Ltd., and VANDERVIEREN, A. A. Oct. 20, 1958 [Oct. 22, 1957], No. 32987/57. Class 89(3) A stapling machine includes a base 1 having supported thereon a body member 4 in which is slidably mounted, for removal from the front end of the machine, a drawer 11 serving as a staple magazine and having a front end portion 15 which is detachable to permit free access to the front of the drawer. The portion 15 is of U-shape and its opposed arms 17 are adapted for sliding movement over the side walls of the drawer 11 and are provided with lugs 18 for sliding engagement in co-operating recesses in the side walls of the drawer 11. The lower inner edge of the base of the portion 15 is spaced from the adjacent edge of the base of the drawer 11 to define a slot through which the staples are driven. The drawer 11 is releasably retained in its operative position by a lug 12 on the drawer which is engaged by a catch 13 on an arm 14 which is depressed to release the catch. The staple driving blade 6 is carried by an arm 7 pivoted at 5 to side plates 3 extending from the base 1, the pivot at 5 also serving to pivotally support the body member 4. A casing 8 pivoted at 9 to the plates 3 is provided with a roller 10 through which movement of the casing 8 to actuate the stapling machine is transmitted to the arm 7. Specification 857,460 is referred to.
Patent GB-1160090-A (GB)
Title: Moulds and Cores for Casting
Inventor: DUNLOP ADAM
IPC: B22C1/16
Filed: 1967-07-18
Abstract: 1,160,090. Mould-lining and core-coating materials. A. DUNLOP. 17 July, 1968 [18 July, 1967], No. 32995/67. Heading B3F. [Also in Divisions B5 and C3] Refractory moulds for precision castings, particularly of highly reactive metals, e.g. titanium and titanium base alloys, are produced from a slurry of refractory, binder and gelling agent which is subsequently heated to form a crazed structure, e.g. as a mould lining, which is then further strengthened by application of a further binder and impregnated with graphite. The slurry 20 may be applied to a poured or rammed refractory backing layer 17. Further binder may be applied by dipping into a liquid binder solution. Graphite impregnation may be achieved by placing the mould in a heated furnace and admitting a gaseous hydrocarbon thereto which is carbonized or by placing the heated mould in a container to which the hydrocarbon is admitted. Impregnation may also be achieved by incorporation of finely divided carbon into the liquid binder solution. The refractory material may be refractory oxides, silicates or carbon and the binder may be an alcoholic solution of phosphorus pentoxide, aqueous phosphoric acid, sodium silicate or hydrolysed ethyl silicate.
Patent GB-372281-A (GB)
Title: Improved method of treating chlorates for blasting purposes
IPC: C06B29/02
Filed: 1930-11-03
Abstract: 372,281. Explosives. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Finska. Elektrokemiska Aktiebolaget ; 3, Glogatan, Helsingfors.) Nov. 3, 1930, No. 33028. [Class 9 (ii).] A chlorate briquette for the absorption of a comburent to make an explosive blasting cartridge is made by mixing finely divided chlorate with water, say 15 per cent, pressing the moist chlorate into blocks, say at 14À3 atmospheres, then drying under heat, say at 40‹ C. for 42 hours, the fineness of the chlorate, the amount of water, and the pressure being so chosen that the porosity is at least 10 per cent. The blocks may be surrounded with a paper envelope, and are preferably made hollow. For use, they are impregnated with a liquid such as benzol, kerosene, nitrobenzol, creosote oil, syrup, and a solution of resin in alcohol, or with melted solid or semisolid such as paraffin. The detonation speed may be increased by the addition of catalytic agents or the like, for example, carbides, metallic aluminium, magnesium, silicon, or silicon metals. Internal friction may be reduced by the addition of aqueous extract of peat, oils, gelatinous precipitates, tannin, graphite, or kieselguhr. The porosity may be further controlled by the addition of substances which shrink by loss of water or gasification, for example ammonium carbonate. The chlorate may be potassium chlorate or sodium chlorate or any other chlorate used for such purposes.