baber/WOPTO huggingface dataset:
Patent GB-1123830-A (GB)
Title: Improvements in or relating to the cutting of sheets or strips into chips
IPC: B29B9/04
Filed: 1965-11-16
Abstract: 1,123,830. Comminuting apparatus. ONDERZOEKINGSINSTITUUT RESEARCH, N.V. 16 Nov., 1965 [25 Nov., 1964], No. 48645/65. Heading B2A. [Also in Division B5] A strip 7 to be cut into chips is fed at an acute angle to a bed knife 10 having an undulating cutting edge which meshes with the undulating cutting edges of knives 2 carried by a rotor 1, the strip being displaced between successive cuts such that the components of the displacement along, and transverse to, the main direction of the cutting edges are equal to half the length of an undulation and less than the depth of an undulation respectively. The angle of feed of the strip is between 25‹ and 35‹, preferably 30‹. The transverse component of the displacement of the strip between successive cuts is preferably 55% to 58% of the depth of an undulation. The undulations preferably each have straight sides together forming an angle of 60‹. The extreme parts of the undulations that are nearest to the feed path of the strip have a larger radius of curvature than the extreme parts that are furthest away therefrom, the ratio between the radii of curvature preferably being 2.5 to 1. The strip may be of synthetic thermoplastic polymerisation or polycondensation product.
Patent GB-1093790-A (GB)
Title: Machine for fastening two-part releasable buttons
IPC: A41H37/10
Filed: 1965-11-17
Abstract: 1,093,790. Setting buttons. GEORG DIETR BUCKING G.m.b.H. Nov. 17, 1965 [March 9, 1965], No. 48768/65. Heading A3H. A machine for setting buttons of the type comprising a head with a tapped socket for receiving the threaded shank of a base consists of an upper and a lower tool both being displaceable along a common axis and one being rotatable. Button heads are fed one at a time from a rail 41 by a slider 49 to an upper tool which is displaceable axially by a pivoted lever 40, 50. Button bases are fed from feed station 11b to a lower tool which is rotated by a gear train with a gear segment 30 and is displaced upwardly by pivoted lever 37. To pierce the fabric between the tools a needle 16 is displaceable upwardly within the lower tool. The operations of supplying and fixing the buttons may be fully or partly automatic. The operation is controlled by a driven rotary cam disc 42 which has upper and lower cam tracks co-operating with push rods 53, 55 actuating the upper tool spring loaded levers 40, 50 and the lower tool spring loaded lever arm 37. The cam disc releases a stop on the needle lever 46 to allow it to move the needle upwardly to pierce the fabric under the action of spring 48. The cam disc 42 is connected to the gear segment 30 which drives the gear train which imparts to a toothed wheel 12c on a rotary sleeve 12 of the lower tool the number of revolutions corresponding to the screw thread in the button head. The upper and lower tools are supported on a base 57. The lower tool comprises a bearing sleeve 11 secured to the base, an inner, rotatable and slidable sleeve 12 and a further inner lift sleeve 13 linked to spring 14 and displaceable by lever 37. The tool is correctly orientated to align slots in the sleeves 11, 12 with feeding stations 11b by a slotted disc in the gear train co-operating with a spring urged roller. The upper tool comprises a sleeve bearing 21 for a slidable shank part 27d which is bored for a thrust bolt 28 bearing on the top of the button head. The shank part has spring urged pivoted members to provide a seal and hold the button head. The lever 40 is secured to the thrust bolt 28 allowing slight play in the shank part. Two fabric clamping parts co-operate with two clamping pads on the base. The fabric is supported on a curved table slidable over the base. The table supports the lower parts of two fabric clamps the upper parts of which are controlled by a pedal on the cam disc. The sliding movement of the table is limited to the spacing between buttons by a rotary rod having rows of differently spaced notches, any one row can be used to cooperate with spring loaded ball dependent from the table.
Patent GB-1283979-A (GB)
Title: A carrier for an individual sample cell
Inventor: TARBET CECIL SIDNEY CHARLES
IPC: G01N35/04
Filed: 1969-10-07
Abstract: 1283979 Springs CECIL INSTRUMENTS Ltd 1 Oct 1970 [7 Oct 1969] 49161/69 Heading F2S [Also in Divisions E2 and G2] A phosphor-bronze leaf spring 2<SP>1</SP> has an integral mounting portion. Tongues may be cut in the free portion (Fig. 1, not shown).
Patent GB-1283549-A (GB)
Title: Improvements in or relating to filter presses
IPC: B01D25/12
Filed: 1969-10-08
Abstract: 1283549 Filter press plate U PASSAVANT AG 8 Oct 1969 [29 Oct 1968] 49371/69 Heading B1D Filter press plates have a central web 3 to divide into two the filter chamber formed between filter cloths on the plates. Passage of fluid to be treated through the press is through central apertures 6 and 7, and filtrate as taken off through conduits 12. Fig. 3 (not shown) illustrates a supply circuit wherein a compressed air reservoir allows storage of unfiltered material to facilitate rapid press-filling.
Patent GB-1020145-A (GB)
Title: Power plant e.g. for jet propulsion of aircraft
Inventor: WILDE GEOFFREY LIGHT
IPC: F02K3/12
Filed: 1964-12-07
Abstract: 1,020,145. Gas turbine by-pass jet engines. ROLLS-ROYCE Ltd. Dec. 7, 1964, No. 49798/64. Headings F1G and F1J. A power plant comprises a plurality of gas turbine type gas generators each of which comprises an axial-flow compressor, combustion equipment and turbine in flow series, there being a common compressor arranged to supply part at least of the air compressed thereby to all the axial-flow compressors of the gas generators, also a common turbine which is driven by the gases from the gas generators, the common turbine being arranged to drive the common compressor. The engine shown comprises a cylindrical casing 11 in which are mounted four gas turbine type gas generators 13 each of which comprises an axial-flow compressor 15, combustion equipment 16 and turbine 17, the gases generated by the four gas generators discharging through a duct to drive a common turbine 21, the exhaust gases from the turbine 21 discharging through duct 23. The turbine 21 is mounted on shaft 22 and drives a common compressor 12 disposed upstream of the gas generators 13, a portion of air delivered by the compressor 12 passing into the compressors 13 of the gas generators. The remaining portion of air delivered by the compressor 12 passes between and around the gas generators to the by-pass passage 20 and then flows through mixer chutes 24 to mix with the exhaust gases flowing through duct 23. The inlet guide vanes 25 of the compressors 15 may be moved so as to completely close off the air inlets so that one or more of the gas generators may be closed down while the others continue in operation.
Patent GB-1125453-A (GB)
Title: Electrolytic production of chlorine
IPC: C25B1/26
Filed: 1965-11-24
Abstract: 1,125,453. Electrolytic production of chlorine. HOOKER CHEMICAL CORP. Nov.24, 1965 [Nov. 25, 1964], No.49939/65. Heading C7B. In a method of producing chlorine electrolytically, the evolved chlorine is cooled and dehumidified by heat exchange with the electrolyte before the electrolyte is fed to the cell, and preferably by direct contact heat exchange. In the embodiment described, hot moist chlorine is passed from the electrolytic cell 10 via line 12 to heatexchanger 20 wherein a direct, counter-current heat exchange is effected with incoming brine from the line 22. The chlorine gas is then passed through mist eliminator 24 to the drying towers 28, 30, 32, and is thereafter liquified. Inert gases containing chlorine which results from liquifaction of the chlorine is fed into a blow gas absorber 36 through which is passed fresh brine electrolyte under pressure, chlorine present in the blow gas being absorbed therein. The chlorine containing electrolyte is then passed to the heat exchanger, where a drop in pressure causes dissolved chlorine to be given off, and the temp. of the electrolyte is raised by contact with the chlorine from the electrolytic cell. The electrolyte is then passed through a resaturator 48 to which salt slurry is added to resaturate the brine, which has become diluted by condensation of water vapour from the stream of chlorine, and hence to a second heat exchanger, or brine superheater 64 in which the electrolyte temperature is further raised by indirect heat exchange with hot hydrogen evolved within the cell 10 and passed to the heat exchanger via line 14. A constant level of brine is maintained in the blow gas absorber 36 by means of a level control 42, and constant levels of salt slurry and electrolyte in the brine resaturator are maintained by means of level controls 54 and 60.
Patent GB-1420167-A (GB)
Title: Slide fastener having a filling core
IPC: A44B/
Filed: 1973-10-29
Abstract: 1420167 Sliding clasp fasteners YOSHIDA KOGYO KK 29 Oct 1973 [6 Nov 1972] 50151/73 Heading E2S A sliding clasp fastener comprises a pair of oppositely-disposed carrier tapes 11, 12, a row of fastener elements Ea formed into a continuous helical coil structure E 1 -En and secured to each of said tapes 11, 12, each element having a coupling head portion Ea, leg portions Eb, and a connecting portion Ec, and a reinforcing core 13 of a hollow tubular structure extending longitudinally through said row of elements in intimate contact with the internal peripheral surfaces of said leg portions Eb and connecting portion Ec of each element. Each helical coil of successive loops E 1 -En is of egg-shaped cross-section and the reinforcing core 13 is preferably made of woven fibrous yarns treated with synthetic resin. Alternatively, the core 13 may be formed by extruding a tube of plastics material. Each coil E is sewn, with a core 13 inserted therein, to the respective carrier tape 11 or 12 by twothread chain stitches S.
Patent GB-1277254-A (GB)
Title: Hermetically sealed package for use in electronic components
IPC: H01L23/055
Filed: 1969-10-13
Abstract: 1277254 Hermetically sealed package; semiconductor devices HITACHI Ltd 13 Oct 1969 [21 Oct 1968] 50245/69 Headings H1K and H1R. A sealed package is made up on a base member 10 comprising flat bodies 11, 12, which may be ceramic, steatite or zircone, having metal lined holes 13a, 13b, 14a, 14b, not opposite each other, interconnecting metallic layers 17a, 17b, 18a, 18b, 19a, 19b, the layers 17a, 17b being connected to an integrated circuit body of semiconductor 20 via leads 21a, 21b, and the layers 19a, 19b being connected to outer leads 22a, 22b. Sealing means 27 is mounted on body 11, comprising a metal cap 25 resistance welded to flanges 23 joined to the metal layer 24 on the body 11. The metal layers on the surfaces of the bodies 11, 12 are printed by depositing metal ink containing molybdenum and manganese powders through masks, and the holes are coated by passing a metal ink through them with the aid of a vacuum. All metal layers may be plated with nickel Alternatively, each outer lead may pass out of body 12 via the hole (14b) Fig. 3 (not shown). Figs. 2a-2d (not shown) display how the metal layers are deposited on the bodies 11, 12, before the latter are placed together to form the base member 10, after which the component 20 is mounted, and the cap 25 and the leads 22a, 22b are fitted. If alumina ceramic material is used for bodies 11, 12, they are joined by sintering at 1300-1600‹ C.
Patent GB-1354447-A (GB)
Title: 1,2-diphenyl-3,6-dioxo-4-hydroxy-5-n-butyl-tetrahydropyridazine
IPC: C07D/
Filed: 1972-11-01
Abstract: 1354447 1,2 - Diphenyl - 3,6 - dioxo - 4 - hydroxy - 5 - n - butyl - tetrahydropiridazine BYK GULDEN LOMBERG CHEMISCHE FAB. RIKGmbH 1 Nov 1972 [5 Nov 1971] 50361/72 Heading C2C  The title compound of Formula I is prepared by reacting caproic acid-N-N<SP>1</SP>- diphenyl hydrazide with double to quadruple molar quantities of dialkyl oxalate in the presence of alkaline condensing agents in an inert organic solvent and the alcohol formed is azeotropically distilled off and before distilling off the remaining solvent, converting the excess of oxalic acid ester into oxalic acid diamide by treatment with ammonia.
Patent GB-1205402-A (GB)
Title: Reaction products of amines and phosphonic anhydrides
IPC: A01N57/18
Filed: 1967-11-07
Abstract: 1,205,402. Reaction products of amines and phosphonic anhydrides. STAUFFER CHEMICAL CO. 7 Nov., 1967 [7 Nov., 1966], No. 50487/67. Heading C2C. [Also in Division A5] A composition of matter comprises the reaction product of (a) a C 12-18  alkyl primary or secondary amine and (b) a phosphonic anhydride of general formula where n is greater than 2 and R is C 1-8  haloalkyl or a radical of formula where X is halogen and a, b, c and d are from 0 to 5. The reaction product comprises mainly the compound (claimed per se) of general formula where R is as above, R<SP>1</SP> is an -NR<SP>11</SP> 2  group and R<SP>11</SP> is C 12-18  alkyl or H with the proviso that only one R<SP>11</SP> in each -NR<SP>11</SP> 2  group can be H, and as by-products the compounds R-P(O)(NHR<SP>11</SP>) 2  and [R-PO 3 ]-[NH 3 R<SP>11</SP>]<SP>+</SP> 2 , where R is as above or is R<SP>11</SP>NH-(CH 2 ) n -, where n   is 1 to 8 or the radical R<SP>11</SP> being as above. Reaction is effected by slowly combining the anhydride and amine at 50-150‹ C., usually in two steps by first reacting one mole of amine per mole of anhydride at 50-150‹ C. and then reacting the resultant compound with another mole of amine at 0-100‹ C. in the presence of an organic solvent. The products have pesticidal properties.
Patent GB-1507949-A (GB)
Title: Display racks
IPC: A47F7/24
Filed: 1976-12-07
Abstract: 1507949 Display racks FRAME CLOTHING Ltd 7 Dec 1976 [10 Dec 1975] 50585/75 Headings A4T and A4U A display rack for clothes comprises a frame having wheels or castors 6 , a rail 3 for supporting hangers bearing the clothes and an array of lights 12. The rack is preferably of chromium plated steel tubing, fitting 10 for the lights are preferably moveable in a track 9 and counterweights (not shown) may be provided to balance the lights 12.
Patent GB-1150358-A (GB)
Title: Reactivity Control Systems
Inventor: DAVIS DENNIS
IPC: G21C7/36
Filed: 1965-11-30
Abstract: 1,150,358. Controlling reactors. ENGLISH ELECTRIC CO. Ltd. 28 Nov., 1966 [30 Nov., 1965], No. 50744/65. Heading G6C. In a gas-cooled, graphite moderated nuclear reactor having a positive moderator temperature coefficient of reactivity, automatic reactivity control is effected by adjustable con. trol rods. The temperature of the reactor core 20 is measured by the temperature sensitive device 32 which controls the adjustment of control rods 24 so as to maintain coolant outlet temperature at as high a value as possible consistent with the mid-core temperature not exceeding a predetermined value. The control unit 26 also operates in accordance with a predetermined law to maintain the coolant outlet temperature as near as possible to a datum set by signal generator 28. The device 32 may be sensitive to either coolant or moderator temperature and its position inside the core is stated to enhance the system stability.
Patent GB-1362873-A (GB)
Title: Method of rendering an electrophoresic membrane transparent
IPC: G01N27/447
Filed: 1971-11-02
Abstract: 1362873 Transparent membrane FUJIPHOTO FILM CO Ltd 2 Nov 1971 [4 Nov 1970] 50969/71 Heading B1X [Also in Divisions B5 and C7] Cellulose ester or nitrocellulose electrophoretic membrane is made transparent by impregnating it with a C 1 -C 12  primary alkanol and then contacting it with an ether until transparency is obtained. The alkkanol is preferably mehanol, ethanol or butanol or a mixture of two or more of these. The ether may be dioxane, diethyl dioxane, ethylene oxide, diethyl ether or methyl ethyl ether or a mixture of two or more of these. The membrane may be cellulose acetate, diacetate or triacetate, or nitrocellulose, may contain glyceryl triacetate, and may have a molecular weight in the range 10,000-150,000. The treatments are carried out at 10-35‹C. The immersion times are of the order of a few minutes. The membrane may be placed on a glass plate before immersion in the ether to prevent the entry of air into the membrane. After treatment, the membrane is dried at an elevated temperature.
Patent GB-1241023-A (GB)
Title: Nickel-cadmium cell
Inventor: BABOIAN ROBERT
IPC: H01M10/26
Filed: 1968-10-29
Abstract: 1,241,023. Sealed alkaline nickel-cadmium cells. TEXAS INSTRUMENTS Inc. 29 Oct., 1968 [30 Oct., 1967], No. 51178/68. Heading H1B. In a sealed Ni/Cd cell the electrolyte comprises an aqueous 5À0-6À0 M KOH solution containing Na<SP>+</SP> in a concentration between 0À25 and 1À80 M and having a resistivity at 24‹ C. not greater than 1À75 ohm-centimetres. Examples describe secondary Ni/Cd cells with electrolytes comprising KOH and NaOH or Na 2 CO 3  and compare them with conventional alkaline cells using an electrolyte consisting of aq. KOH.
Patent GB-1376280-A (GB)
Title: Borohydrides and process for preparing thexyl borohydrides
Inventor: COREY ELIAS JAMES
IPC: C07F5/02
Filed: 1972-02-15
Abstract: 1376280 Lithium borohydrides E J COREY 15 Feb 1972 [22 Feb 1971] 51343/73 Divided out of 1361946 Heading C2B  The invention comprises borohydrides of the formula where 'R is C 1-8  alkyl, especially thexyl, C 5-6  cycloalkyl, or phenyl and R<SP>1</SP> is cyclohexyl or the two R<SP>1</SP> groups taken together with the boron atom to which they are attached form a 9-borabicyclo-(3,3,1)nonyl group, or when R is thexyl may form an 8-methyl-2-borabicyclo- (3,3,1)nonyl group. The borohydrides of Formula I wherein R is thexyl (i.e. the group (CH 3 ) 2 CH.C(CH 3 ) 2 -) are prepared by reacting the corresponding thexyl borane in reactioninert solvent with at least an equimolar proportion of an organolithium having a betahydrogen atom (especially t-butyllithium) at -20‹ to +20‹C. The other compounds of Formula I may be prepared by direct reaction of RLi with appropriate boranes.
Patent GB-1417156-A (GB)
Title: Microwave heating apparatus
IPC: H05B6/76
Filed: 1972-11-07
Abstract: 1417156 Microwave oven RAYTHEON CO 7 Nov 1972 [30 Nov 1971] 51364/72 Heading H5H A microwave oven having a non-contact making energy seal between the peripheral metal wall portions of the oven opening and the door is characterized by a solid dielectric in the gap between the door and the opening and an elongated peripherally extending choke groove, one of the peripheral wall portions being provided with a plurality of peripherally spaced circuit parameter variations which inhibit energy propagation in a peripheral direction, the distance between adjacent maxima and minima of the circuit parameter variations being less than the wavelength at the excitation frequency of the oven. In the drop-down door type of oven shown the door 52 comprises a perforated panel 62 secured to a frame 64 supporting an outer window 61, an inner window member 63 also being provided. A choke arrangement 76 around the door has tapered wall portions which mate with correspondingly tapered wall portions 15 of the access opening. An upstanding peripheral wall 78 of door panel 62 defines with wall portion 15 an elongated peripheral energy path 80. Frame 64 is stepped to provide a surface 84 forming part of the choke as well as a lateral surface 86 overlapping the casing walls 72. A second peripheral energy path 88 is defined between frame 64 and wall 78 for energy escaping through gap 82. Dielectric material 90, e.g. polystyrene or polypropylene, may fill the parallel paths 80, 88. Entrance and exit to path 88 is provided by the gap 92 between the end of wall 78 and the opposing wall 84. Elongated energy absorbing bodies 94 and 96, e.g. of carbon or ferrite loaded rubber or plastics, are provided externally of the choke seal to absorb any escaping radiation. To prevent peripheral energy propagation in the Y- direction in the choke seal a plurality of capacitive slots 106 are provided in at least one of the choke wall sections, e.g. 78 to leave a plurality of conductive fingers 78a. The slots 78 may be evenly spaced as shown, randomly spaced, if differing lengths, may be obliquely located and may be filled with dielectric material. The choke arrangement may be formed wholly in the door, wholly in the surround to the access opening or as shown, partly in the door and partly in the surround. The door may be of the vertically hinged or slidably withdrawable types. In alternative embodiments the conductive bars of the elongated propagation line type seal of Specification 1,257,217 are transversely slotted to impede peripheral propagation. The oven is provided with a mode stirrer and the conventional safety interlock switches. The circuit variations may be provided by transversely extending peripherally spaced conductive ribs of one of the wall portions.
Patent GB-1476800-A (GB)
Title: Milling apparatus
IPC: B02C17/16
Filed: 1975-11-06
Abstract: 1476800 Agitator mills AUGUSTS Ltd 6 Nov 1975 [27 Nov 1974] 51404/74 Heading B2A An agitator mill, comprises an arrangement whereby the agitator 24 can be lifted clear of the media/material mixture or rotated and lowered into the media/material mixture. The agitator 24 is driven by a shaft extending through the base of the bowl 16. The agitator itself is carried on the lower end of a supporting sleeve 26 surrounding a portion 28 of the drive shaft, and the sleeve is attached to the top end of the shaft. A sealing sleeve 42 surrounds the portion 28 of the shaft, and has a top end located above the normal level to which the bowl will be filled in use. The supporting sleeve and agitator are slidable axially of the shaft portion to permit lifting of the agitator. The top of the shaft portion and the supporting sleeve have a splined rotary connection. Raising and lowering is effected by an hydraulic or pneumatic cylinder 50A connected to the bowl by a cantilever arm 56A releasably-connected to the top of the supporting sleeve 26. The mill includes a one-way clutch 40 between a sleeve 36 and the shaft 28. The sleeve 36 is secured to the base 18 of the bowl. A disc brake 58 holds the bowl in one direction of the motor permitting it to rotate when the motor is reversed for discharge of contents via a top sieve 20. The bowl is jacketted, coolant being delivered via a feed ring 70.
Patent GB-1105880-A (GB)
Title: Improvements in the production of linear polyesters
Inventor: HILAIRE PAUL
IPC: C08G63/87
Filed: 1966-11-16
Abstract: In the manufacture of polyalkylene terephthalates by polycondensing a bis (omegahydroxyalkyl) terephthalate, triethanolamine is used as a polycondensation catalyst.  In the examples, ester interchange was effected between dimethyl terephthalate and ethylene glycol in the presence of calcium acetate, zinc acetate or manganous acetate and the resulting glycol esters were polycondensed at 270 DEG -290 DEG C. in the presence of triethanolamine, titanium dioxide and, possibly, phosphorous acid.