baber/WOPTO huggingface dataset:
Patent GB-1286240-A (GB)
Title: Process for the preparation of polyterephthaloyl oxamidrazones
Inventor: WALLRABENSTEIN MICHARL
IPC: C08G73/06
Filed: 1970-10-02
Abstract: 1286240 Polyterephthaloyl oxamidrazones GLANZSTOFF AG 2 Oct 1970 [9 Oct 1969] 46934/70 Addition to 1139279 Heading C3R Polyterephthaloyl oxamidrazones are obtained by reacting oxalic acid bisamidrazone with terephthaloyl chloride at 0 to 60‹ C. in a two-phase solvent mixture of water and purified tetrahydrofuran, the ratio of water to tetrahydrofuran being from 2:1 to 1: 2 by volume, with the addition of 7À5 to 30% by weight based on the water of lithium sulphate or lithium chloride as salting out agent and of an alkali metal carbonate or bicarbonate as an acid acceptor. The tetrahydrofuran may have been purified by contact with solid potassium hydroxide followed by distillation over sodium borohydride or potassium permanganate. Examples are given.
Patent GB-1093157-A (GB)
Title: Foundation garment
IPC: A41C1/00
Filed: 1964-11-20
Abstract: 1,093,157. Girdles. CORDE DE PARIE Inc. Nov. 20, 1964 [June 11, 1964; Oct. 30, 1964], No. 47431/64. Heading A3V. A girdle or panty girdle comprises twoway stretch panels 12, 14 secured to waist and leg bands 16 and 20 respectively and cut away at the rear along edges 44. A front non-elastic insert 26 is reinforced by strips 34, 36, 38, the latter strip optionally forming a pocket for a stiffener and suspenders 40 being secured to the strips 36. Inner two-way stretch panels 48, 50 extend from a rear seam 52 to points adjacent the insert 26. The inner and outer panels are stitched together over the portions 64 of the edges 44 of the outer panels and over a portion of similar height of the edges 58 of the inner panels. The inner panels are free of the waistband along the edge 72 to allow the panels to slide over the waistband during e.g. bending. Suspenders 68 are secured to tapered portions 54 of the inner panels.
Patent GB-1282373-A (GB)
Title: Nickel-chromium electroplating
IPC: C25D5/14
Filed: 1970-10-06
Abstract: 1282373 Electroplating nickel, chromium AIC APPROVVIGIONAMENTI INDUSTRIALI CHIMICI SPA 6 Oct 1970 [15 Oct 1969] 47438/70 Heading C7B A decorative, corrosion resistant Ni-Cr plating is formed on a metallic base, e.g. of Fe or alloy of Al, Zn, Cu or Mg, by electro-depositing first a glossy additive Ni-containing layer on the base from a Ni plating bath containing a soluble complex metal cyanide or thiocyanide e.g. in a concentration of 0À1-10 g/l, then a microporous Cr layer e.g. from a bath containing CrO 3  and H 2 SO 4 . The base may be initially electroplated with Cu and/or Ni prior to immersing in the Ni plating bath without intermediate rinsing. An intermediate shiny or smooth Ni layer may be electro-plated prior to the Cr plating. The Ni plating bath preferably contains NiSO 4 , NiCl 2 , H 3 BO 3 , with butadiol, Na naphthalenetrisulphonate and alkylpyridinesulphonate or metabenzenedisulphonate, or o-benzoyl sulphimide, and a salt (e.g. K) of the complex metal (thio) cyanide, particularly nitroso or carbonyl pentacyano Fe (m) or (II) or Ru (m), hexacyano Co (II), Fe or Mn (II) or (m), cyano Cu (I) or (II), tetrathiocyano Pt (II), or (III) or Pd (II), hexacyano Ir (III), Ru (II) or Rh (m), hexathiocyano Pt (IV), or tetracyano Ni (II).
Patent GB-1129704-A (GB)
Title: Triggered vacuum gap device
IPC: H01J17/26
Filed: 1966-10-24
Abstract: 1,129,704. Spark gaps; vacuum switches. GENERAL ELECTRIC CO. 24 Oct., 1966 [30 Nov., 1965], No. 47598/66. Headings H1D and H1N. In a triggerable vacuum gap device comprising an envelope 9 evacuated to a pressure of 10<SP>-5</SP> mm. Hg or less and containing a pair of primary arc electrodes 2 and 3, a trigger assembly 5, 6 of the type described in Specification 1,063,947 comprising a gap in an interface between a ceramic material and a metal coated with active gas-containing material is located in an aperture in each of the primary electrodes 2, 3, thus enabling the device to operate on A.C. or D.C. An additional reservoir for active gas, e.g. hydrogen, may be provided in the form of getter material 37, e.g. titanium, shielded by baffles from the main gap. The device is sealed by a plug 35 after the introduction of the active gas. Materials specified are as follows:-Envelope 9-stainless steel; Members 11, 12, 17 and 18-an alloy suitable for forming metal/ceramic seals; Bushes 13 and 14-alumina ceramic; Electrodes 2 and 3-Cu or other high-vapour pressure material; Trigger electrode coating- a hydride of Ti, Zr, Hf, Y, Er or other rare earth metal. The main electrodes 2, 3 may both be fixed, as shown, or electrode 2 may be movably mounted on a bellows (41), (Fig. 3, not shown).
Patent GB-1069269-A (GB)
Title: Electrostatic printing system
IPC: B41M1/12
Filed: 1963-12-03
Abstract: 1,069,269. Printing apparatus. ELECTROSTATIC PRINTING CORPORATION OF AMERICA. Dec. 3, 1963 [Feb. 1, 1963]. No. 47630/63. Headings,B6C and B6F. In a screen-stencilling apparatus utilizing an electrostatic field for screen printing on an article with a powdered pigment the latter is moved from a storage container through the screen by the application of a magnetic field. This field attracts to the screen carrier particles of magnetic material which are mixed with the powdered pigment in the container and are each of a size too large for passage through the openings in the screen. In the apparatus of Fig. 2, an article 34 is screen-printed with an image 28A by passage through an electrostatic field between an aluminium conductive backplate 30 and a container 22 which accommodates a mixture of powdered pigment 24 and magnetic particles 26 and incorporates in its upper wall a screen 28. Magnetic attraction to the screen of the particles 26 and hence upward propulsion of the pigment 24 is effected by the reciprocation of a magnet 36. In a modification of this apparatus six magnets similar to 36 are mounted on a movable endless band the runs of which are parallel to the back-plate 30. Fig. 4 shows an electromagnetic arrangement in which windings 50A to 50E are successively energized through a sliding contact 56 whereby the magnetic particles are drawn to the screen in a " wavesweeping " motion. In further embodiments the containers 22 are above the article 34 and magnets are also used to withdraw the magnetic particles from the screen. In one such arrangement permanent magnets, weaker in field strength than that used for printing, are mounted above the container, whilst in another arrangement these " weak " magnets are replaced by an electromagnet which may be switched off during the printing operation. Fig. 7 (not shown) discloses an arrangement having " switched " electromagnets for moving the magnetic particles to and from the screen, a suitable control being provided for energizing and de-energizing the magnets as required. In yet another embodiment the screen 92, Fig. 9. which is imaged with the letter " A ", is formed in an end face of a container 90 and magnetic particles are advanced rapidly up to the screen to introduce pigment powder into the electrostatic field through the successive energization of electromagnets 98, 100 and 102 positioned adjacent one another so that the container 90 is enclosed between their pole faces. By using a plurality of the structures shown in Fig. 9, a printer can be constructed having a different letter aperture in the front faces of each one of the containers 90. The letter desired to be printed is selected and then printed by selective actuation of the particular selector switch 112 associated with the desired letter.
Patent GB-477970-A (GB)
Abstract: 477,970. Calendars. HAM, H. VAN DER. April 3, 1936, No. 9972. Void. Convention date, April 3, 1935. [Class 106 (iv)] A perpetual calendar comprises two relativelyadjustable data-bearing members. In one form, two bands move behind an apertured plate. One band carries the units and tens of year numbers and the day names, the other band having a series of monthly calendars and a set of month names. In another construction, a drum b bearing helically-arranged units and tens of year numbers is rotated by a knob e and is caused to move axially by the engagement of a fixed lug d with a screw thread c. The drum drives a sleeve J carrying day names. An independent drum m having a series of monthly calendars and a set of month names is rotated by a knob K.
Patent GB-988080-A (GB)
Title: Improvements in and relating to zigzag folding apparatus for webs of material and more particularly paper webs
IPC: B65H45/107
Filed: 1962-12-19
Abstract: 988,080. Paper &c. folding apparatus. G. MULLER. Dec. 19, 1962 [Dec. 20, 1961], No. 48004/62. Headings B6B and B6H. Paper &c. webs 10 are fed to a zig-zag folding apparatus by conveyer belts 13, 13<SP>1</SP> carried by side plates 18 oscillated about a pivot at their upper end in time with the operation of the folding apparatus. A transverse member 26 is fixed to the plates 18 and has a guide opening 27 for the webs. The axis of oscillation of the plates 18 is concentric with the member 26 and also with a main drive gear from which the upper rollers 15, 15<SP>1</SP> are driven. Pivoted to the lower end of the plates 18 are plates 30<SP>1</SP> carrying an apertured guide member 37 and conveyer belts 14, 14<SP>1</SP> similar to those on the plates 18. The lower rollers 28, 28<SP>1</SP> are driven from the main drive gear through idler gears mounted on the plates 18, 30<SP>1</SP>. The plates 18 are oscillated from an eccentric 40 through a linkage 44, 46, 48 and the plates 30 are oscillated from an eccentric 41 through a linkage 45, 47, 49. The belts are driven faster than the webs so as to prevent their speed dropping below the web speed due to the oscillating movement and to provide a tensioning effect. In a modification, the lower rollers 16, 16<SP>1</SP> of the belts 13, 13<SP>1</SP> are driven, and the belts 14, 14<SP>1</SP> are replaced by stationary walls fixed to the plates 30. The zig-zag folds are formed by rotating members 50, 51 mounted on driven shafts 56, 57 geared to shafts 54, 55 carrying helical guides 52 which engage the folds. The width of the folded material can be adjusted by operation of a right- and left-hand threaded shaft engaging threaded members 61 attached to blocks 60 carrying the shafts 56, 57.
Patent GB-1196917-A (GB)
Title: Improvements relating to Valves for Pressurised Containers
Inventor: WARREN WILLIAM EDWARD
IPC: B65D83/14
Filed: 1966-10-26
Abstract: 1,196,917. Pressurized dispensing containers. BESPAK INDUSTRIES Ltd. Sept. 28, 1967 [Oct. 26, 1966], No.48067/66. Heading F1R. The outlet valve of a pressurized dispensing container includes a moulded screw threaded member 6 formed separately from the cap 1 and valve support member 2. The member 6 has a non-circular lower portion received in a complementary opening in the cap 1 to prevent relative rotation.
Patent GB-1514309-A (GB)
Title: Electrophotographic copying apparatus
IPC: G03G21/20
Filed: 1975-11-24
Abstract: 1514309 Electrophotographic copying machines MINOLTA CAMERA KK 24 Nov 1975 [30 Nov 1974 4 Dec 1974 16 Jan 1975] 48200/75 Heading B6C The sensitive surface 2a of a photoconductive drum 2 in a photocopying machine is freed from moisture prior to a copying operation by means of a heater 18 so disposed within the machine that the drum 2 is located within a hot air stream emanating from said heater 18. Preferably the machine includes fans 8, 7 for introducing fresh air into the vicinity of the drum 2 via duct 10 and extracting it via ducts 11, 16 to remove ozone and nitrogen oxides formed in the corotron 3. Fan 7 also extracts air heated by the exposure lamp 6. The extraction system may include an ozone-absorbing filter (f 1 ), Fig. 11 (not shown). In the machine shown, the latent electrostatic image formed on the drum 2 is transferred to a copy sheet on which it is liquid developed. The invention is also applicable to copiers using dry development of the image on the drum 2 and transfer of the resultant toner image to a copy sheet.
Patent GB-1282961-A (GB)
Title: Improvements in or relating to cold-storage display counters
Inventor: NATHMANN HANS
IPC: F25D29/00
Filed: 1970-10-12
Abstract: 1282961 Refrigerators LINDE AG 12 Oct 1970 [11 Oct 1969] 48282/70 Heading F4H [Also in Division G3] A cold storage display counter comprises at least two counter units. One counter unit is selected to act as a master control counter unit by plugging in thereto an electronic circuit module (not described) to regulate the refrigerating and defrosting systems of all the counter units. This same unit or one of the other counter units is selected, through the agency of a temperature sensor 30 (Fig. 5) in a cold airflow duct thereof, to determine the refrigeration performance of the entire display counter, whereby to maintain a constant temperature in the counter units. The temperature monitoring sensor 30 is connected by plug-in cables to the electronic control module. Another temp. sensor 28 is provided for controlling a defroster heater 29. The electronic control module also controls a fan 26 of an evaporator 27. A time switch may also be provided in the master. Anti-condensation heating (not illustrated) may also be provided.
Patent GB-1237725-A (GB)
Title: Automatic circuit-breaker
IPC: H01H71/52
Filed: 1968-10-11
Abstract: 1,237,725. Automatic circuit - breakers. CHARLES MAIER & CIE. 11 Oct., 1968 [11 Oct., 1967], No. 48352/68. Heading H1N. A circuit-breaker has a contact 17 movable about a displaceable pivot 12 to co-operate with a fixed contact 21 by a lever 3 which engages with a U-shaped leaf spring 11 on the contact 17. The pivot 12 is normally maintained in the position shown by a pawl 7 which is released under overload conditions by a bimetallic strip 13 and under short-circuit conditions by the armature 30 of an electromagnetic tripping device 29. When the pivot 12 is released, the contact 17 pivots about the end 6 of the lever 3 to open the contacts under the bias of a spring 28, this spring subsequently moving all the component parts back into the open position shown.
Patent GB-1240106-A (GB)
Title: Improved forced circulation gas heating apparatus flue terminal device
Inventor: HENTSCH RAYMOND ALFRED
IPC: F24C15/00
Filed: 1967-10-24
Abstract: 1,240,106. Balanced flue terminals. WILLIAM SUGG & CO. Ltd. 24 Oct., 1968 [24 Oct., 1967], No. 48368/67. Heading F4J. A balanced flue terminal comprises a rectangular inlet duct 1 terminating in a dished wall plate 5 whose flange 6 extends in a perpendicular direction parallel to the axis of the duct, and a rectangular outlet duct 2 extending through said wall plate beyond said inlet duct to terminate in a deflector plate 9 attached by screws 11 to said outlet duct 2. The deflector plate 9 has spacers 13 attached by screws 14 to the wall plate 5 and a wire guard rod or frame 15 prevents the entry of birds &c. into the inlet duct, a similar wire rod or frame 16 guarding the outlet duct. In horizontal section the ratio of outside width of wall plate 5 to that of deflector plate 9 is in the range of 1À1:1 to 1À3 : 1, a similar ratio in vertical section being 1À1 : 1 to 1À5 :1. The outer edges of wall plate 5 subtend at the edges of the deflector plate 9 an angle lying between 12 and 30 degrees to a plane normal to the wall plate base in horizontal section and between 12 and 33 degrees in vertical section. The ducts may be circular, in which case the above ratios are 1À1 : 1 to 1À3 : 1 and between 12 and 33 degrees.
Patent GB-1459088-A (GB)
Title: Optical scanning systems
IPC: H04N3/09
Filed: 1973-10-18
Abstract: 1459088 Optical scanning system BARR & STROUD Ltd 2 Sept 1974 [18 Oct 1973] 48482/73 Heading H4F An optical scanning system comprises a scanning head 10 incorporating a rotating drum 11 which reflects by means of mirrors 21, radiant energy, preferably in the infra-red wave band, emanating from a source 15, on to a linear array 14 of detectors. The system includes visual display means 16 incorporating a CRT controlled by a unit 18. Distortion of the image due to variation in rotational speed of the drum is avoided by synchronizing the signals from array 14 and the vertical and horizontal time bases of the CRT raster scan system by means of a synchronizing control device 19 within the head 10. A preferred embodiment of the device 19 is shown in Fig. 2 and comprises first and second reading units 22 and 23. The first unit 22 derives a signal from a sensor 22E in response to light from a source 22A reflected from suitably placed mirrors 24, indicative of the commencement of the scanning motion of the mirrors 21. The second head 23 produces a signal pulse train from light pulses in a moirÚ fringe pattern generated on a reflection grating strip 25, by which the angular disposition of the scanning mirror can be ascertained and the horizontal position of the CRT spot correspondingly indexed. Outputs from the detectors 14 are sequentially sampled by a self resetting multiplexer 31 initiated by a pulse from the second unit 23. The simultaneous operation of a vertical time base unit 34 which drives the CRT vertical deflection coil is initiated by a pulse from the unit 23. The operation of a gate 36 is controlled by a pulse from the first unit 22 permitting pulses from unit 23 to drive the horizontal integrator unit 37 which drives the CRT horizontal deflection coil. Integrator 37 automatically resets and gate 36 closes at the end of each complete scan of the mirrors 21 in readiness for the next initiating pulse from unit 22. The mirrors 21 may be placed on an internal surface of the drum as in the embodiment of Figs. 4 and 5 (not shown). A rotating system of prisms or lenses may replace the mirror or mirror drum. The synchronizing means may alternatively comprise a prerecorded magnetic tape; a zigzag conductor and magnetic pick up; a glass grating for forming moirÚ fringes; a capacitive device; or a tacho generator.
Patent GB-1408116-A (GB)
Title: Pulse shaping circuit
IPC: H03K5/135
Filed: 1973-10-19
Abstract: 1408116 Tape reader BURROUGHS CORP 19 Oct 1973 [14 June 1973] 48803/73 Heading G4M [Also in Division H3]  A pulse shaper for a paper tape reader sprocket pulse has two monostables 105, 117 triggered respectively by the leading and trailing edges of the (distorted) sprocket pulse, the (clean) output pulse being produced by the leading edge of the first monostable and the trailing edge of the second, triggering of the second being inhibited until the first monostable pulse has ended. Thus a threshold detector in the form of a D-type bistable 101, having identified the start of the input pulse and triggered monostable 105, is prevented by gate 107 from triggering monostable 117 for a major part of the input pulse, thereby reducing the risk of erroneous operation by noise. JK flip flops 113, 123, are set by the respective monostables, and an inverter 115 inverts the Q output of FF113 to produce the leading edge of the output (clean) pulse. The outputs of PF123 and monostable 117 must coincide at 125 with a signal from the paper tape processor to reset FF113 and terminate the output pulse.
Patent GB-1157038-A (GB)
Title: Pickling Solutions for Removing Copper Oxides from Copper Containing Workpieces
IPC: C23G1/10
Filed: 1967-10-30
Abstract: 1,157,038. Cleaning copper surfaces. LANCY LABORATORIES Inc. Oct. 30, 1967 [Sept. 19, 1967], No.49184/67. Addition to 1,119,969. Headings C7E and C7U. A copper-containing workpiece (including copper plated or alloy e.g. Cu-Al surfaced workpiece) is cleaned by introducing it into an aqueous pickling solution, e.g. at 80-150‹F., containing an inorganic acid selected from H 2 SO 4 , sulphamic acid or an acid salt thereof e.g. NaHSO 4 , in a concentration of 1À84-55% by weight (1-40% by volume), to dissolve cupric oxide from the workpiece surface, 0À1 - 50 g/l of H 2 O 2  to aid in removing and to prevent formation of additional cuprous oxide, and at least 1 g/l (e.g. 1-150 g/l) of a dissolved organic stabilizing compound for the H 2 O 2  containing at least two functional groups carrying polar H atoms that are sterically unhindered by one another or other groups, e.g. (poly) ethylene or propylene glycol, glycollic acid or glycerin. The solution may also contain 0À1-6 oz/gal of a chelating agent, e.g. E.D.T.A. An oxygen-containing gas such as air may be bubbled through the solution during cleaning. The workpiece may be initially treated in a solution containing inorganic acid only to remove most of the oxide prior to the above cleaning. Comparison solutions containing benzoic or propionic acid as stabilizers are disclosed.
Patent GB-1363932-A (GB)
Title: Hand tools
IPC: B25B15/02
Filed: 1972-09-14
Abstract: 1363932 Hand tools; drills FUTTERS (LONDON) Ltd 14 Sept 1972 [26 Oct 1971] 49752/71 Headings B3N and B3C A hand tool comprises a cranked shank 10 consisting of first and second portions 14, 18 respectively, integrally formed with an intermediate crank portion 16, portion 18 being provided with a tool head 20 or a holder therefor. Portion 14 is rotatably mounted in a plastics or rubber handle 12. Portions 14, 18 converge to a point adjacent or post handle 12. Tool head 20 may be for drilling and take any of the shapes shown in Figs. 3, 5 and 7. Alternatively the tool head may be a screwdriver or a spanner. If a tool holder is affixed to portion 18 this may comprise a chuck provided with a collet or include a spring clip for releasably engaging the shank of a replaceable tool head.
Patent GB-1456245-A (GB)
Title: Photographic replication method
IPC: G03C5/02
Filed: 1973-10-26
Abstract: 1456245 Photographic replication CIBA-GEIGY AG 3 Dec 1974 [26 Oct 1973] 49885/73 Heading G2X A method of producing a photographic replication of the distribution of light passing an original subject is described in two embodiments (1) where the subject is the light-collecting box of a scanning apparatus and the replica is used to correct for non-uniformities in its response and (2) where the subject is a colour transparency the replica is a copy corrected for secondary absorptions and interlayer effects. In (1) the light-collecting box (3), Fig. 2 comprises a window 4 and a photo-cell 6 at the exit pupil 5. Contrary to the ideal case the efficiency of transmission from 4 to 5 is not independent of the distance x at which a beam 7 is incident and a correcting mask is required to be made. This is done by (a) recording the transfer function of the photographic material to be used by exposing a first area 2 of the material to light passing a test wedge 1 and developing the material 2 to produce a copy wedge 2' Fig. 1; (b) Scanning the entrance window 4 of box 3 and matching each element of the window 4 with an appropriate position of the copy wedge 2'  Fig. 3, (right) such that the optical density at that appropriate position is in linear relation to the optical density of the element of the window 4; (c) Scanning a second area 8 of the same photographic material to expose to light each element thereof commensurate with each element of the window 4 such that the light exposing the second area 8 has passed an optical density 1 Fig. 3, (left) identical with that used to expose the appropriate part of the copy wedge 2' as determined by step (b) and (d) developing the second area 8 to produce a stable image 8' Fig. 2 which a negative replication of the original. In (2) Figs. 4, 5, 6, (not shown) a first copy wedge is made by light passing through a test wedge comprising crossed cyan and magenta wedges and a second copy wedge is made by light passing a yellow test wedge. The colour original is then examined point-by-point by allowing light from a source to pass through the original on to a photometer and further light from the same source to pass through both copy wedges on to a further photometer. The photometer outputs are balanced by moving the copy wedges appropriately, these movements being used in the exposure of the final image.