baber/WOPTO huggingface dataset:
Patent GB-359127-A (GB)
Title: Improvements in or relating to the after-treatment of artificial silk obtained by the spinning-can process
IPC: D01D10/04
Filed: 1930-09-01
Abstract: <PICT:0359127/IV/1> In the after-treatment of artificial silk cakes for washing, desulphurizing, bleaching, soaping, oiling, or dyeing, the cake is placed without inner or outer support between plates provided with an adjustable loading device.  The cake thus forms the peripheral portion of a treatment chamber, into which the treatment fluid is admitted through fittings provided in one or both of the plates. The cake is allowed to swell or shrink under the action of the various treating liquids.  In the drawing, a spun cake 1 is covered at its ends with plates 2, 3.  Treatment fluid is introduced through an aperture 4 in the plate 2 and an adjustable outlet 5 for the fluid is provided, also in the plate 2.  The upper plate 3 is loaded by means of adjustable springs 6 which ensure fluidtight contact of the ends of the cake with the plates. The pressure on the plates is varied according to the particular treatment to which the cake is subjected, and is such as to allow the cake to expand.  The plates may be employed for a plurality of cakes arranged side by side, and if desired the cakes may be arranged in vertical stacks.
Patent GB-782323-A (GB)
Title: Improvements in devices for regulating the effective cross-section of a discharge nozzle
Inventor: KADOSCH MARCEL
IPC: F02K1/30
Filed: 1955-09-13
Abstract: 782,323. Jet-propulsion nozzles. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Sept. 13, 1955 [Sept. 17, 1954], No. 26146/55. Class 110 (3). The discharge area of a truncated jetpropulsion nozzle is controlled by auxiliary gas which is injected into the nozzle in the upstream direction and substantially parallel to the axis of the main discharge nozzle. A truncated nozzle is stated to be one in which the extremity of the nozzle is tangential to a convergent cone. The truncated convergent nozzle 2 has its terminal portion 3 formed by a frustum of a cone having its apex on the nozzle axis A-A and an apex angle of 45 degrees. An annular nozzle 5 formed around the outlet orifice is supplied with air from a manifold 6 fed with an auxiliary gas under pressure, e.g. air from the compressor of the jet-propulsion engine. Control means are provided to vary the supply of auxiliary gas. The nozzle 5 completes the expansion of the auxiliary gas and discharges it in the form of a high velocity annular jet in a direction parallel to the axis A -A and opposite to the main jet flow. Specification 745,630 is referred to.
Patent GB-389522-A (GB)
Title: Improvements in decoys
IPC: A01M31/06
Filed: 1931-09-18
Abstract: 389,522. Decoys. BAKER, M., Carisbrooke, Thoroughgood Road, Clacton-on- Sea, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. Sept. 18, 1931, No. 26182. [Class 5 (i).] A decoy 1 for wild birds consists of a hollow shape the upper portion of which has the form of the upper part of a bird, preferably with the head down in feeding attitude, and the lower portion of which is open so that a number of such decoys may be fitted into each other for transport purposes. The decoy may be made by pressing two pieces of packing kraft 12, 13, cut to the correct contour, into shape on a mandrel. The adjacent surfaces of the sheets are covered with a waterproof adhesive material and pressed into firm contact with each other. The outside is then covered with a suitable fabric 14 secured by a waterproof adhesive and painted to give a matte finish. A socket or eyelet 6 is fitted to form a bearing for a pivot pin 9. The decoy may be constructed of a wire frame covered with unglazed linoleum or may be pressed out of papier machÚ or other plastic material.
Patent GB-425238-A (GB)
Title: Improvements in, and relating to, inserted tooth saws
IPC: B23D61/06
Filed: 1933-09-22
Abstract: 425,238. Inserted-tooth saws. SPEAR & JACKSON, Ltd., Aetna Works, Savile Street, Sheffield, COOMBE, L. J., Peak House, Calver, Derbyshire, and GORDON, F. F., 461, Whirlowdale Road, Sheffield. Sept. 22, 1933, No. 26191. [Class 145 (ii)] [See also Group XXII] Tooth blanks b, Fig. 1, are secured in gaps c in the saw body a; the teeth are ground in situ to the required shape, and the body is ground away to provide the necessary clearance for the cuttings, as in Fig. 3. The blanks may be of bright drawn steel, or may be forgings, pressings or stampings ; they may be round, elliptical &c. in section, the walls of the gaps having corresponding shapes. The blanks may be secured by welding, brazing, soldering or by pins d. Wedges may be driven into gaps between the teeth-receiving gaps. The teeth may be secured by plugs g, Fig. 8, screwed into recesses behind the teeth ; the teeth and the gap walls may be screw-threaded. The teeth may be inclined to the radii.
Patent GB-261724-A (GB)
Title: Improvements relating to the insulation of electric conductors
IPC: H01B7/02
Filed: 1926-10-21
Abstract: 261,724. Hochstadter, M. Nov. 21, 1925, [Convention date]. Paper with thick and thin parts. - Insulating tape of paper or similar thin close and continuous material is bevelled or stepped down at the edges before application and is wrapped so as to overlap at the edges without local increase in thickness thereby avoiding or minimizing joints in the direction of the electric field. In one example shown in Fig. 1, the edges b of adjacent tapes a are scarfed and overlap. Fig. 3 shows another example in which the tapes a are formed by super. posing two thinner tapes n, o so as to produce a stepped edge h, i, k, l. The construction shown in Fig. 4 comprises two interlinked superposed layers a<1>, a<2> of tapes which have similar and symmetrical edges p, r, s, t, u, v, w. The adjacent edges of the tapes may be united by a suitable adhesive such as synthetic resin.
Patent GB-1513747-A (GB)
Title: Photographic film developing apparatus
IPC: G03D3/00
Filed: 1975-06-20
Abstract: 1513747 Photographic processing apparatus KREONITE Inc 20 June 1975 [2 July 1974] 26417/75 Heading G2X Film strips are clipped to magnetic or magnetizable carriages and moved through a sequence of processing chambers by the carriages co-operating with a magnetic of magnetizable bar means which is positioned externally of the chambers and is moved in a path perpendicular to the chambers' common axis. In the embodiment of Fig. 1 horizontally aligned chambers 28-38 are formed by a continuous coiled tube. Chambers 28-36 have removable caps 28a-36a at their upper ends for filling the chambers with processing fluid. Chamber 38 is a drying chamber and is connected to a fan 52. A bar 124 which comprises a magnet, a series of magnets, or magnetic material is driven in a substantially elliptical path adjacent the inner side of the coil by a sprocket and chain drive, 108, 114, 120, 122. The wheeled carriage, Fig. 4, comprises a pivotally mounted clip 68, which releasably grips the film 72, and a piece of magnetic material, or magnet 67. In an alternative embodiment  Figs. 5 and 6 (not shown) the carriage is wheelless and slides along the chamber walls. An entry and discharge port are provided adjacent chambers 28 and 38 respectively. The carriages are fed into the entry port one at a time by an escapement mechanism Fig. 2 (not shown) and the mutual attraction between the carriages and the moving bar 124 cause the carriages and attached films to be moved in a helical path through the chambers. In an alternative embodiment Fig. 9 (not shown) the apparatus comprises adjacent substantially rectangular tanks through which the carriages are moved magnetically by a bar reciprocating vertically outside the tanks, the carriages being guided by rollers and angled plates within and interconnecting the tanks. The carriages comprise a rod carrying the film clips and a magnet or piece of magnetic material at one or both ends. In a final embodiment Figs. 14 and 15 (not shown) a hollow cylinder having a helical groove on its outer surface passes through all the tanks. The bar moves in a circular path inside the cylinder and entrains the carriages running in the groove through the tanks.
Patent GB-1537388-A (GB)
Title: 16 micron output wavelength co2 laser system
IPC: H01S3/223
Filed: 1976-06-25
Abstract: 1537388 Lasers UNITED STATES DEPARTMENT OF ENERGY 25 June 1976 [10 July 1975] 26443/76 Heading H1C In a laser in which a gaseous active medium comprises CO 2 , N 2 O, OCS, CS 2  or a CO 2 -N 2 -He mixture, laser action producing an output of 16 Á wavelength and involving the transition between the 020 and 01<SP>1</SP>0 energy levels, Fig. 1, is obtained by pumping the active medium to the 001 energy level, suppressing the normally dominant 10À6 Á transition to the 100 energy level while encouraging the 9À6 Á transition to populate the 020 energy level, and allowing this populated energy level to decay to the 01<SP>1</SP>0 energy level to produce the required output wavelength by stimulated emission. A gas discharge laser Q-switched by a rotating mirror M1 is shown in Fig. 3, the 10À6 Á wavelength being absorbed by a gas cell G and the 9À6 Á and 16 Á wavelengths being enhanced by resonator mirrors M1, M2. To produce the 16 Á output, mirror M2 is partially transmitting at this wavelength. In a second embodiment, Fig. 4, a dispersion prism P is used to suppress the 10À6 Á wavelength and to direct the 9À6 Á and 16 Á wavelengths to respective mirrors M1, M3, an electro optic switch S in theformerpath being activated to generate a saturating 9À6 Á pulse. Q-switching may be effected by rotating the mirror M3, Fig. 6 (not shown). A gas dynamic laser is shown in Fig. 5 in which N 2  gas heated by an arc 34 is combined with a mixture of N 2  and Ar in a plenum 30. The combined gases flow supersonically through an expansion nozzle 36 after which they are mixed with cold CO 2  to produce the required population inversion between resonator mirrors 40<SP>1</SP>. A Q-sintered laser similar to that shown in Fig. 4 may direct both 9À6 Á and 16 Á radiation into the resonator region to produce stimulated emission of 16 Á wavelength, Fig. 6 (not shown).
Patent GB-1055261-A (GB)
Title: A capacitor read-only store
Inventor: OWEN CHARLES EDWARD
IPC: G11C17/04
Filed: 1962-07-10
Abstract: 1,055,261. Read-only stores. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 4, 1963 [July 10, 1962]. No. 26504/62. Heading G4A. In read-only memories in which a capacitive or other connection is made between selected drive and sense lines from sets of such lines the invention provides that there is a constant impedance to current in the drive line whatever the form of the stored data. This is done in Fig. 2 (not shown) by providing pairs of sense lines both lines of a pair being connected to a differential amplifier. One bits are stored by connecting the lines S1a, S2a to appropriate drive lines, and zero bits by connecting the lines S1b, S2b to the drive lines. Fig. 3 (not shown) shows pairs of drive and sense lines. Ones are stored by connecting the d drive lines to the p sense lines and the b drive lines to the q sense lines and zeroes by making the opposite connections. To pulse a drive line a transistor from the set G1 to GN is sent conductive after which a transistor T1 or T2 . . . is pulsed. The invention is also applicable to inductive readonly stores.
Patent GB-708027-A (GB)
Title: Improvements relating to sterols and sterol esters of the cyclopentanodimethylpolyhydrophenanthrene series
IPC: C07J75/00
Filed: 1951-11-13
Abstract: The invention comprises sterols and sterol esters having the general formula <FORM:0708027/IV (b)/1> p  in which R11 is a >C = O group or a <FORM:0708027/IV (b)/2> group in which R is an acyl or acyloxyacetyl radical and their preparation by heating the corresponding 17-substituted - D 5:7 -androstadiene - 3b  - ol with aluminium isopropylate or aluminium tertiary butoxide in the presence of a ketone, and acidifying the reaction mixture with a mineral acid. Preferably the reaction is effected in the temperature range 75-175 DEG  C.  Specification 708,020 is referred to.
Patent GB-165697-A (GB)
Title: Improvements in or relating to cold water tanks or cisterns
IPC: B65D90/08
Filed: 1920-09-17
Abstract: 165,697. Marshall, T. Sept. 17, 1920. Addition to 140,280. Tanks and cisterns.-In a welded tank constructed according to the parent Specification, the overhanging flanges 2 along the top edges of the sides 1 of the body part are carried forward the full length of the sides, while the flanges 5 of the end part 3 are cut away at each end to receive the side flanges. The depending member of the flange 2 is cut away at 7 to allow the end of the flange to rest upon the edge of the end part 3.
Patent GB-266412-A (GB)
Title: Improvements relating to machines for punching out holes in metal blanks
IPC: B21D3/16
Filed: 1925-10-24
Abstract: 266,412. Jenks, A. E. Oct. 24, 1925. Feeding articles from hoppers and shoots.- Means for feeding blanks to a machine described with particular reference to punching holes in washers &c. comprises a sloping shoot E down which the blanks are fed and spaced fingers F, M which are depressed alternately to regulate the feed of the blanks. The finger F is pivoted on a pin and is lifted against the urge of a spring K by an adjustable rod W on a slide A. The finger M is hinged on a pin P and is lifted against the urge of a spring Q by a depending rod V engaging a hooked extension S. The blanks are stripped by a plate X. In a modification a single finger is substituted for the two fingers. Specification 255,636, [Class 83 (iv), Metals, Working], is referred to.
Patent GB-844880-A (GB)
Title: Method of and apparatus for cutting sheet material
IPC: B27G19/08
Filed: 1957-08-23
Abstract: 844,880. Guillotine cutting machines. STRAMIT BOARDS PROPRIETARY Ltd. Aug. 23, 1957 [Aug. 24, 1956], No. 26686/57. Class 31 (1). [Also in Group XXIII] Wall board 13 issuing from a fabricating machine is cut into lengths by means of a reciprocating knife 37 mounted on a carriage 6 which moves with the board, the knife being applied to the board from below and the board being clamped to the carriage in such a manner that it is bent downwards and allows the cut to open as cutting proceeds. An adjustable stop 63 on a rod 61 extending forwards from the carriage is engaged by the advancing end of the board to determine the length to be cut and an upper clamp 28 divided along the line of cut is moved down to press the board against spaced boards 34 on the carriage by means of manually-operated toggle levers 31 acting aganst springs 29. To ensure downward bending of the board, the boards 34 may be inclined inwardly towards each other and they are below the level of a roller 23 on the carriage and rollers 12 of a main conveyer 11. The knife 37 is carried between bars 38 secured to carriages 39 slidable on a guide rod 41 and one carriage is linked by a connecting rod 54 to a crank disc 57 driven through a reduction gear-box 58 by a motor 60 on a sub-frame 59 of the carriage. The knife is raised into contact with the wall board 13 by a handle 53 connected by a belt 50 to toggle levers 46 pivoted on the guide bar 41 and on lugs 45 depending from the carriage. For returning the carriage to its starting position, one of the roller axles 14 of the carriage has a handle 20 and carries sprockets 15 engaging chains 16, the chains being adjustable by screws 18 and threaded blocks 17 to ensure that the knife is normal to the axis of the wall board; racks and pinions may be used alternatively to the chains and sprockets.
Patent GB-502622-A (GB)
Title: Improvements relating to seats
IPC: B60N2/54
Filed: 1937-10-02
Abstract: 502,622. Seat frames. ACCLES & POLLOCK, Ltd., and HOLMES, L. Oct. 2, 1937, No. 26702. [Classes 52 (i) and 52 (ii)] In a seat, particularly a vehicle seat, of. the kind made from metal tube or rod and comprising a base part f and a seat .carrying part c connected at one end only by a part e, links k connecting the two parts are provided which are adapted to prevent undesired movement of the seat part in one direction without interfering with the desired movement of the seat in the opposite direction under load. The links are slotted, and may be adapted to restrict depression of the seat beyond a predetermined extent. One or more links may be used, and in place of slotted links, plain or jointed links incorporating friction de. vices at the pivots may be used with stops to limit the movement. Specification, 464,677 is referred to.
Patent GB-1138094-A (GB)
Title: Piezo resistive transducer
Inventor: GREENWOOD JOHN CHRISTOPHER
IPC: G01P15/12
Filed: 1967-06-09
Abstract: 1,138,094. Piezo-resistive transducer. STANDARD TELEPHONES & CABLES Ltd. 9 June, 1967, No. 26731/67. Heading H1K. [Also in Division G1] A piezo-resistive transducer of the type where the stress applied to the piezo-resistive element is only compressive or tensile, is made by binding the principal surfaces of a slice of piezo-resistive material to the opposed faces of two anvils wherein the area of the slice extends beyond that of the faces of the anvils and removing that portion of the slice whose area so extends. In an accelerometer an aluminium coated (16) silicon slice (15), (Figs. 2a and 2b, not shown), is bonded between the aluminium coated tips 5 and 12 of tungsten carbide anvils 4 and 7. The anvils are located in " Kovar " (Registered Trade Mark) members 3 and 9. The seismic mass 9 is joined to the casing 1 by molybdenum diaphragms 10 and 11 but the member 3 is insulated from the casing by metal-to-glass seals 2. The interior of the casing, members 3 and 9 and the diaphragms are gold-plated. The silicon slice is first treated with nitric and phosphoric acids to remove the aluminium coating and then with nitric and hydrofluoric acids at 0‹ C. to remove the area of the slice extending beyond the anvils. Holes 13 and 14 are provided for the introduction of the etchants but are later covered with member 17.
Patent GB-1076471-A (GB)
Title: Apparatus for making chemical separations
Inventor: ALLINGTON ROBERT WILLIAM
IPC: G01N1/18
Filed: 1964-06-29
Abstract: 1,076,471. Optical apparatus. INSTRUMENTATION SPECIALITIES CO. June 29, 1964, No.26750/64. Heading G2J. [Also in Division G1] The invention is concerned with investigating the fractions present in a vertical density gradient tube. In order to preserve the different density layers separate the contents of the tube are floated out by injecting dense liquid into the tube bottom. Fig. 1 shows a tube 21 clamped against a funnelshaped outlet leading to an inspection cell 12 by means of a spring-loaded arm 22. The tube is made of thin plastic so that it is possible to puncture its lower end with a needle 24 and inject dense liquid by means of motor driven syringe 25. Operation of the syringe causes the liquid in the tube to be lifted up through the funnel-shaped member into the inspection cell and into outlet tube 17 with a minimum of turbulence. The liquid is collected in test-tubes 18 mounted on a turntable indexed round by drive 20 in accordance with the output of photo-electric inspection device 14, 15, 16 so that the various functions are separated into different tubes. Manual operation of the syringe and turn-table may replace the motor system.
Patent GB-1129015-A (GB)
Title: Improvements in or relating to electromagnetic indicators
Inventor: PIHL GEORGE EVERETT
IPC: G08B5/24
Filed: 1967-06-09
Abstract: 1,129,015. Two-position electric indicators. MINIATURE ELECTRONIC COMPONENTS CORP. 9 June, 1967 [15 June, 1966], No. 26838/67. Heading G4F. A two-position electric indicator comprises a semi-circular member 18 mounted for rotation about shaft 16, and carrying on its rear surface a pair of oppositely-directed bar permanent magnets 36, 38. The member 18 is caused to rotate to two alternative positions by means of an electromagnet comprising two soft iron cores 46, 48, each of which carries a pair of solenoids 50, 52 and 54, 56, respectively. The magnetic circuit is completed by an iron plate 64. Each of the polepieces is formed to a chisel shape, to provide flats 88, 90 against which the member 18 rests in either steady position; a cover-plate 40 of plastic material prevents sticking. The member 18 carries a pair of indications, e.g. differently coloured areas, which appear in mask 26 for viewing through window 8. In operation two solenoids on opposite cores are energized simultaneously, being connected in series, so as to repel the appropriate permanent magnet 36, 38 and rotate member 18 to its alternative position.
Patent GB-1474544-A (GB)
Title: Cephalosporin cleavage process
IPC: A61K/
Filed: 1974-06-12
Abstract: 1474544 Cephalosporin cleavage process ELI LILLY & CO 12 June 1974 [18 June 1973] 26838/74 Heading C2C Process for cleaving the amic acid function of a compound of the Formula (I) in which R and R a  are hydrogen, or R and R a  taken together with the carbon atoms to which they are attached represent an ortho-phenylene ring; R 1  is a carboxy protecting group; and R 2  is hydrogen, acetoxy, methoxy, methylthio, (5 - methyl - 1,3,4 - thiadiazol - 2 - yl) - thio, or (1 - methyl - 1H - tetrazol - 5 - yl)thio; comprises (1) reacting the compound (I) with an alkyl chloroformate in the presence of a tertiary amine at a temperature in the range of from - 20 to +5 C. to form a mixed anhydride of Formula (II) in which R b  is C 1-4  alkyl, and maintaining the temperature of (II) in the range of from - 20 to + 5 C.; (2) reacting the product (II) with up to one equivalent of a hydrazine of the formula R 3 HNNHR 4 , in which R 3  and R 4  independently are H or CH 3 , per equivalent of the 7-(amic acid)cephalosporin used in step (1), at a temperature in the range of from - 10 C. to room temperature; and (3) (a) reacting the reaction mixture with an acyl halide to produce the corresponding 7-acylamido cephalosporin; or (b) when at least one of R 3  and R 4  is CH 3 , recovering the corresponding 7-amino cephalosporin from the reaction mixture of the hydrazine treatment; or (c) when R 3  and R 4  are hydrogen, heating the reaction mixture from the hydrazine treatment to a temperature of from 50 to 100 C. to produce the corresponding 7-aminocephalosporin; or (d) when R 3  and R 4  are hydrogen, reacting the reaction mixture from the hydrazine treatment with acid to produce the 7-amino cephalosporin in the form of its acid addition salt.
Patent GB-744106-A (GB)
Title: Improvements in and relating to pulse discriminating circuits
IPC: H04J3/06
Filed: 1953-10-01
Abstract: 744,106. Pulse discriminating circuits. CANADIAN GENERAL ELECTRIC CO., Ltd. Oct. 1, 1953 [Oct. 1, 1952], No. 26956/53. Class 40 (6). In a circuit for producing an output pulse in response to a group of narrowly spaced pulses in a train of relatively widely spaced pulses, the group is first converted into a waveform having a flat region with small indentations, then passed to the first valve of a flip-flop circuit, the waveform being integrated at the anode of this valve and the flip-flop circuit operating when the anode voltage reaches a predetermined value. A pulse train comprising signal pulses P and a synchronizing signal consisting of three short pulses S1, S2, S3 is applied to a rectifier D1. having a load R3, C7 such that a pulse output Y is produced at the grid of a normally conducting valve V1. An integrating circuit R4, C8 in the anode circuit of the valve accordingly feeds a waveform C to the grid of valve V2. When the voltage reaches the level V valve V2 conducts producing an output pulse d which by virtue of the common anode load and regenerative action through capacitor C3 and rectifier D2 produces a voltage X which cuts off valve V1 so that the circuit is then insensitive to interference. The feedback rectifier prevents the input pulses being directly fed to the output terminals.