baber/WOPTO huggingface dataset:
Patent GB-231646-A (GB)
Title: Improvements relating to machines for grinding pens or pen nibs and for other like purposes
IPC: B24B27/00
Filed: 1924-03-07
Abstract: 231,646. Mitchell, H., and Bateman, J. March 7, 1924. Pen-nibs, grinding and surfacing.-A machine for grinding pens, pen-nibs, or other small articles comprises a stationary circular bed a supporting a table b, which is partially rotated at intervals by a. Geneva stop mechanism to carry the nibs opposite to one or more grinding-wheels, for example, a longitudinal grinder j, and a cross grinder k. The underside of the table is recessed to receive semi-circular sectioned portions of chucks h. which during movement with the table out of contact with the grinding-wheels are retained in position by the bed. and at the grinding positions enter gaps in the bed and are supported by cradles m. The chucks are pressed down and prevented from endwise movement by plungers i, one or both of which are pressed down by springs or weights. When a chuck is resting on the cradles it is oscillated on its axis by a connecting rod o actuated by a cam q. The chuck, when in the grinding position, also is tilted to move the nib on the grinding wheel by cams u<1> engaging plungers t, which contact with the cradles; one plunger only is moved for longitudinal grinding. The nibs v are held against shouldered semicircular sectioned ends 2 of the chucks by spring clips 4, which, when a chuck arrives opposite the feeding position, is depressed by a lever 23 actuated by a cam 5, and when a chuck arrives at the discharge position is similarly depressed by levers 7, 9, the nib being ejected on to a pulley 12, whereby it is thrown into a receptacle. The pressure of the nib on the cross grinding-wheel may be regulated by a counterbalanced lever y engaging one of the cradles. In order to prevent a chuck being brought into contact with a grinder if no nib has been inserted in the chuck, a projection 17 is arranged in the path of a nib, the projection, when moved by a nib, causing withdrawal of a fork from beneath a cradle; in the absence of a nib the projection is not moved and the fork prevents depression of the chuck. According to the Provisional Specification the cradles are supported on a lever actuated by a cam.
Patent GB-1024864-A (GB)
Title: Improvements in or relating to tail units for rockets
IPC: F42B30/10
Filed: 1963-02-13
Abstract: 1,024,864. Tail units for rockets. DYNAMIT NOBEL A.G. Feb. 13, 1963 [April 27, 1962], No. 5925/63. Heading F3A. A tail unit has stabilizing fins 5 of non-combustible plastics material formed in one piece with a central sleeve 7, the inner wall of the sleeve 7 having a cutaway portion 10 and annular grooves 8 which engage with external annular ridges 9 on the nozzle end 2 of a rocket 1. A base 3 having a nozzle 4 therein is fitted over the free end. The rings 9 can be formed integrally with the nozzle end of the rocket is this end is of plastic, otherwise separate expanding rings can be used.
Patent GB-938848-A (GB)
Title: Improvements in or relating to the recovery of cyclohexane
IPC: C07C7/06
Filed: 1962-02-15
Abstract: Cyclohexane is recovered from the reaction products of nitric acid and cyclohexane by steam distillation to obtain a water-cyclohexane azeotrope.  The aqueous layer containing adipic acid may be removed before the distillation.  A reflux ratio of 0,5-2:1 may be used, with a bottom temperature in the distillation column of 90 DEG -100 DEG C.ALSO:In the production of nitrocyclohexane by the nitration of cyclohexane, unreacted cyclohexane is recovered from the reaction products by steam distillation to obtain a watercyclohexane azeotrope.  The aqueous layer containing adipic acid may be removed before the adipic acid distillation.  The cyclohexane is recovered by decantation and recycled to the nitration.
Patent GB-1377645-A (GB)
Title: Fibrillating apparatus
IPC: D01D5/42
Filed: 1972-03-06
Abstract: 1377645 Film fibrillation SMITH & NEPHEW RESEARCH Ltd 6 March 1972 [4 March 1971] 5977/71 Heading B5B Apparatus for fibrillating a tensioned, grooved and oriented polymeric tape to ensure uniform splitting along longitudinal grooves in the tape comprises a rotatable member 3, means 6, 7, 8, 9 for guiding a length of the tensioned and oriented grooved tape for travel in its longitudinal direction and spaced from a surface of the rotatable member and at least one smooth protruding boss 5 on said surface which extends into the path of travel of the tape, so that the tape is displaced from its path by the boss; and a point or edge at an outer portion of the boss whereby the displaced tape is subjected to sudden directional change as it disengages from the point or sharp edge and moves to resume its original path of travel. Preferably the path of travel is parallel to the surface of the rotatable member. As shown, the bosses, which suitably are conical projections with a cone angle of 45 to 120 degrees, formed as pins inset into corresponding holes in the disc and held in place by grub screws, may be arranged in a circle around the axis of rotation of the disc 3, which is driven by motor 1 via gearing 2. A bank of such rotary discs may be mounted on a common spindle 4. In an example, a tape with 33 grooves, stretched at a ratio of 8 : 1 to a denier of 550 is fibrillated at a shaft speed of 190 r.p.m., a tape tension of 10-50 g.p.d., a yarn speed of 300 ft per min., and a deflection angle, into the plane of the rotating disc, of 45 degrees. In a second example, a polypropylene tape of denier 586 and having 40 grooves was stretched at room temperature at a ratio of 8 : 1, given a slight twist, and fibrillated, passing into the machine at 55 ft. per min., and out at 56À5 ft. per min, using shaft speeds of 500-1000 r.p.m.
Patent GB-575718-A (GB)
Title: Improvements relating to desk note pads and the like
IPC: B42D5/00
Filed: 1944-03-31
Abstract: 575,718. Note pads. SANDERS, PHILLIPS, & CO., Ltd., and BERENDSOHN, R. L. March 31, 1944, No. 5998. [Class 16] A desk note pad is constructed so that the pad is held between upper and lower cover plates 1, 8 of metal thermo-plastic, or thermosetting compounds, the lower plate being provided with a recess for securing the pad which is formed by bending the lower plate to form a vertical part 5 and a horizontal part 6 spaced from the base at a distance corresponding to the thickness of the pad. The part 6 is deformed at 7 to grip the pad with spring pressure or the pad may be held by other means such as screw pins engaging the under surface of the pad. The cover 8 is hinged to the part 6 and on the same hinge pin is mounted a clock 12, or a thermometer, or barometer, which may be arranged as shown or may be turned face downwards when the pad is out of use. A pencil may be accommodated between a clip 3 formed on the base 2, and a flange 9 on the edge of the cover 8. When the cover is of metal it may be provided with a mirror-like finish. Pens or pencils may be rested on the ledge 7.
Patent GB-1501782-A (GB)
Title: Apparatus for enhancing visibility
IPC: G02B23/22
Filed: 1976-02-16
Abstract: 1501782 Viewing apparatus PERKINELMER CORP 16 Feb 1976 [18 Feb 1975] 6001/76 Heading G2J Apparatus useful in fog, smoke and underwater for enhancing the visibility of a distant region AB by reducing back-scattered light comprises, Fig. 1, means I for successively and repeatedly illuminating successive incremental areas (e.g. DE) of the region AB and a viewing element 10 displaced from the illuminating means I in the direction in which successive illumination progresses. The viewing element 10 comprises a number of spaced, parallel plates 12 which restrict the view of the observer O to correspond spatially and temporally with the successively illuminated areas and means are provided for oscillating the viewing element 10 in sychronism with the illuminating means I. In one embodiment, Fig. 3, a viewing element 10 and a lamp assembly 14 are each pivotably mounted in boxes 25, 26 respectively which are slidably mounted on rods 21, 22 and are driven so as to oscillate by drive rod 30. The viewing element comprises an array of spaced, parallel vanes and the lamp assembly comprises a focused searchlight or a lamp combined with reflective or refractive collimating elements to provide a narrow fan-shaped beam. In another embodiment Fig. 4 (not shown) the viewing element comprises a number of discs secured in parallel, spaced relationship on a rotary shaft and at an oblique angle to the shaft. The lamp assembly comprises a mirror, mounted obliquely relative to its rotational axis, which directs a beam on to the concave reflecting surface of a part-cylindrical mirror. In yet another embodiment Fig. 5 (not shown) the viewing element comprises a pair of boxes, one for each eye, containing an array of parallel spaced vanes. The boxes are pivotable to cause the restricted field of view to scan. The lamp assembly comprises a rotating polygonal mirror. Instead of a single light source, a number of separate sources may be arranged (e.g. on an airfield runway) to illuminate separate areas to be viewed and would be turned on as the respective areas came into view through the viewing element. The view through the viewing element may be recorded by a camera.
Patent GB-1245331-A (GB)
Title: Photosensitive stencil for electrochemical etching process
Inventor: BADT ERNEST AUGUST
IPC: B41N1/24
Filed: 1969-02-04
Abstract: 1,245,331. Photo-sensitive stencils. LECTROETCH CO. Feb. 4, 1969, No.6012/69. Headings G2C and G2M. A photo-sensitive stencil comprises a support of woven single filaments of polyester with 200 to 300 fibres per inch each way coated on one or both sides with a photo-polymerizable coating. The photo-polymerizable coating is preferably polyvinyl cinnamate sensitized with a nitroaryl compound as disclosed in Specification 713, 947. The stencil may be imagewise exposed and developed with ethylene glycol monomethyl ether acetate and tricresyl phosphate and optionally a dye (as disclosed in Specification 888, 935) to remove the unexposed areas and leave a dyed and plasticized stencil which is used in electrolytic etching.
Patent GB-560077-A (GB)
Title: Improved method for preparing substances having vitamin a activity
IPC: A61K31/59
Filed: 1941-05-10
Abstract: A substance having vitamin A activity is obtained by saponifying a liver oil, removing from the unsaponifiable portion substantially the whole of the alcohol having vitamin A activity by high vacuum unobstructed path distillation at a temperature not above 150 DEG C., and then heating the oil to 150-300 DEG  C. for a sufficient time to convert a substance called 428 chromogen present in the oil into a substance having vitamin A activity, which may be removed by high vacuum unobstructed path distillation as formed.  The same effect may be obtained with a mammalian liver oil by subjecting it to a high vacuum unobstructed path distillation at above 150 DEG  but not above 300 DEG  C., collecting the vitamin A distillate and recycling the undistilled residue a sufficient number of times to give a total distillate having a total vitamin A content greater than that of the original oil.  In examples whale liver oil is saponified, the unsaponifiable fraction is dissolved in methyl alcohol to precipitate sterols. The solution is freed from alcohol mixed with corn oil residue and distilled with low boiling constant yield oil to remove vitamin A. The residue is found to contain 428 chromogen which is converted to a substance having vitamin A activity by heating to above 150 DEG  C.  Further examples illustrate the repeated distillation of whale liver oil and the treatment of oil from lamb liver. Specification 482,881, [Group III], is referred to.
Patent GB-1439361-A (GB)
Title: Aerosol compositions
IPC: D06L3/02
Filed: 1973-02-08
Abstract: 1439361 Aerosol compositions containing hydrogen peroxide E R HOWARD Ltd 4 Feb 1974 [8 Feb 1973] 6139/73 Heading C4X [Also in Division D1] An aerosol composition in the form of a water-in-oil emulsion comprises a propellant, an aqueous hydrogen peroxide solution and a non-ionic emulsifier comprising a condensation product of ethylene oxide with sorbitan monooleate. In the example the composition comprises sorbition mono-oleate/5 mol ethylene oxide, 100 vol. hydrogen peroxide (containing uric acid stabilizer), perfume, water and butane. The compositions are used for removing aqueousbased stains from clothing and for cosmetic purposes, e.g. bleaching hair.
Patent GB-213094-A (GB)
Title: Improvements in, or relating to, casement stays
IPC: E05C17/18
Filed: 1923-03-03
Abstract: 213,094. Illidge, A., Illidge, A. E., and Ellidge, C. A., (trading as Illidge & Sons, A.). March 3, 1923. Stays.-The pin C over which the holes in a casement stay A are adapted to engage is fixed to the sill by means of a plate D and has rotatably mounted on it an L-shaped frame E bent up from sheet metal and having an aperture through which the stay passes. A loose joint at B allows of the stay being raised, and the aperture in the frame is of such height that when raised the stay is clear of the pin in all positions. The pin C passes freely through the horizontal portion of the frame E, which rotates between a collar c on the pin and a washer e. Two L-shaped frames may be used, each rotatable on the pin, the aperture in the inner one extending higher than that in theouter one to allow for the slant of the stay; or a. U-shaped frame may be employed.
Patent GB-569592-A (GB)
Title: Prefabricated house
IPC: E04B1/20
Filed: 1943-04-19
Abstract: 569,592. Prefabricated houses. STOLZ, O. M., and ROUSH, A. D. April 19, 1943, No. 6253. [Class 20 (iv)] [Also in Group XIV] A house utilizing a steel frame with sheet-metal walls comprises foundation channel members 12, 14 and corrugated sheet-metal 18 supporting a concrete floor 20. Members 12 have apertures 24 at regular intervals, and selected pairs determined by the required dimensions of the building, are used for attaching a shoe 30 where studs are required. These comprise channel members 36, Fig. 2, also with spaced apertures 38, to which members 40 are attached for supporting the wall panels by means of outwardly-projecting flexible tongues 44 and hooks 46. Brackets 50 are mounted at the top of the studs to support horizontal beams 54 on which the rafters 56 and beams 58 rest. Wall panels 70, which may be arranged horizontally or vertically, are supported by springing them under the upper or lower hooks 46 respectively. Each panel is formed with flanges 72 shaped at top and bottom as shown, and adapted to fit into one another and to be held by the hooks 46. The panels are made in widths varying by definite intervals, corresponding to the spacing of the holes 36. Outside panels, Fig. 5, may be formed with flanges 102, 106 of different widths at top and bottom to imitate weather boarding and are adapted to be held by the, hooks 46. They may be lined with insulation 110, and the joints may be filled with mastic 112. A window sill is formed by two metal strips 200, 202 enclosing a cement filling 204, and secured by hooks on the members 40. The sides of the window frame are formed by similar members 220, 222. The door frame is similar to the window frame. After the panels are fixed, the space within the channels 36 is filled with plastic which penetrates into the space 260 and fixes the hooks 46 rigidly so that the panels are permanently secured. Ceilings may be formed similarly of panels 304 with insulating lining 306 or with insulation packing between the joists. In Fig. 11, a shelf 320 is mounted between panels 70 and formed with a re-entrant flange 324 for supporting a coat-hanger 326, or hooks for kitchen utensils.
Patent GB-395734-A (GB)
Title: Improvements in or relating to inflammable links
IPC: A62C35/60
Filed: 1932-01-21
Abstract: 395,734. Inflammable links. WARREN, F. and WARREN, S. F., 27, Lowick Road, Harrow, Middlesex. Jan. 21, 1932, Nos. 6299/33, (divided on 392,927) and 7102/32. [Class 47 (ii).] Relates to inflammable links, particularly for fire-extinguishing apparatus, and consists in reinforcing the inflammable element by means of non-extensible material. One form of composite link consists of a strip of magnesium wire or ribbon to which pieces of inflammable material, such as celluloid, are secured. Another form consists of a strip of celluloid reinforced by a silk or like thread, which may have been impregnated with nitro-cellulose. Another form consists of a celluloid strip reinforced by a strip or strips of copper, only a small length of celluloid being unattached to the copper. Two overlapping strips of copper may be embedded in, or stuck to, a strip of celluloid. The free ends of the copper strips are bent over or perforated for securing the link to the apparatus to be controlled ; or the ends of the strip may be clamped between metal end members provided with hooks or eyes. Specification 282,679, [Class 47 (ii), Fireextinguishing &c.], is referred to.
Patent GB-622046-A (GB)
Title: Cover mountings for road vehicle bonnets
IPC: A63H17/273
Filed: 1947-03-06
Abstract: 622,046. Hinges. ROVER CO., Ltd., and LOKER, H. J. March 6, 1947, No. 6353. [Class 65 (ii)] ' [Also in Group XXXI] The top of a vehicle bonnet is mounted on links so that it can be moved longitudinally and angularly whilst its centre of gravity moves along a substantially horizontal path. The link mechanism is preferably located at the front end and a horizontal guide at the rear end of the bonnet top. Three examples of suitable link systems are described. In the first example Figs. 1 and 2 show the closed and open positions respectively ; the bonnet top c is carried by two pairs of links a, b, the links of a pair being of different lengths and the link a cranked so, as to clear the radiator cowl e ; the bonnet may be secured by a catch f, g, and the rear end may be bevelled as at j to engage under a complementary shoulder k. In the second example Figs. 3 and 5 show the closed and fully opened positions ; the front of the bonnet top is carried by two pairs of parallel links m, n, connected at their upper ends by a horizontal bar o, at the junction of the bar o and link m is pivoted a guide channel p, pivotal movement of which is restricted by the link q; sliding in the guide channel p is a member r to which the bonnet top is secured ; from the position shown in Fig. 3 the bonnet top is pulled forwardly whereby first the member r slides to the forward end of the guide p, then the links m, n pivot to the position shown in Fig. 5 and finally the front of the bonnet top is depressed to pivot the guide p as shown ; the path of the centro of gravity of the bonnet is indicated in dotted lines. In this example the rear end of the bonnet top may also be guided horizontally during the first part of its opening movement by a guide channel member s secured to the bonnet top which engages over a fixed anchor pin t ; a stop pin u on the member s abuts against an inclined fixed stop member v and is held in contact therewith by a spring w secured to the anchor pin and which engages underneath the guide channel as shown in Fig. 3. In the third example Figs. 6 and 8 show the closed and open positions ; a pair of links 2 pivoted to brackets d each has two rollers 4 engaging a slotted bracket 3 secured to the bonnet top c ; the bonnet top is opened by a forward pull which first causes the bonnet top and bracket 3 to run along the rollers 4 and then causes the whole assembly to pivot about the brackets d to the position shown in Fig. 8 which also shows in dotted lines the path of the centre of gravity of the bonnet top.
Patent GB-1280053-A (GB)
Title: Improvements in or relating to a valve for controlling fluid flow
Inventor: ADAMS ALEXANDER RONALD
IPC: F16K5/06
Filed: 1970-02-10
Abstract: 1280053 Valves WILMOT BREEDON TRUFLO Ltd 19 April 1971 [10 Feb 1970] 6393/70 Heading F2V A part-spherical (or part-cylindrical) valve member 20 having an aperture (32) therethrough and mounted on trunnions 21, 22 in bearings 23, 24 is manually or mechanically rotatable to control flow between an inlet 13 and an outlet 17. Seals 15, 19 which bear on the inner and outer concentric surfaces of the valve member may be 0-rings, fluid pressure biased lip seals or spring and fluid pressure biased seals. Extensions 33, 34 of the inlet and outlet protect the seals from fluid flow. In a modification the outlet seal and the inner trunnion bearings are dispensed with.
Patent GB-800791-A (GB)
Title: Separation of uranium from thorium
IPC: G21C19/46
Filed: 1944-04-05
Abstract: Uranium is removed from a thorium composition wherein the uranium/thorium weight ratio is not greater than 1/50 by forming an aqueous solution of thorium and uranium nitrates from the composition in which the weight ratio between thorium nitrate and water is between 0.7 to 1 and 1.4 to 1, and treating the solution with ether to effect preferential extraction of uranium into the ether phase. The invention is particularly applicable to the removal of U233 from thorium which has been irradiated by slow neutrons, having energies below 1 M.E.V.  Thorium hydroxide, sulphate, oxide or fluoride may be similarly treated and the composition containing U233 may then be dissolved in nitric acid which should preferably not be employed in excess since its presence increases the thorium recovery in the ether phase.
Patent GB-577385-A (GB)
Title: Improvements in and relating to the manufacture of catalyst composites
IPC: B01J21/04
Filed: 1944-04-06
Abstract: 577,385. Catalytic agents. UNIVERSAL OIL PRODUCTS CO. April 6, 1944, No. 6439. Convention date, Jan. 18, 1943. [Class 1 (i)] Alumina hydrogel is precipitated, preferably from a salt of a volatile acid by means of a volatizable base, washed and without drying is suspended in a solution of a compound containing a catalytic metal in the anion. The suspension is heated to remove volatile material and develop the catalytic properties of the composite. Suitable catalytic compounds are chromates, vanadates, and molybdates, preferably of ammonium. The suspension is preferably evaporated at 120-260‹ C. and then calcined at 540-815‹C. Specifications 567,298 and 570,556 are referred to.
Patent GB-708476-A (GB)
Title: Improvements in or relating to data transmission systems
IPC: G08C19/38
Filed: 1952-03-14
Abstract: 708,476. Electric indicating systems. SPERRY CORPORATION. March 14, 1952 [March 21, 1951], No. 6660/52. Class 40 (1). In a data transmission system of the fluxgate or Selsyn type, errors due, for example, to non- symmetry of the fluxvalve legs, ellipticity of the receiver stator or inequalities in the stator coils, are compensated by reactive impedances of varying valves adapted to be selectively switched into the transmission line circuit: As shown in Fig. 1, the receiver stator coils 12, 13, 14 are connected to adjustable taps on corresponding auto-transformers 17, 18, 19 star connected across the transmission lines 8, 9, 10 from the transmitter 3. Alternatively, a variable resistor and reactance may be connected in series in each line 8, 9, 10, Fig. 2 (not shown). Fig. 3, shows three switches 29, 30, 31, the wipers of which are ganged and may be selectively set to connect adjustable impedances 42, 43, 46, 47 in either sense and in different combinations of two of the transmission lines. In a more complex selective arrangement, Fig. 4 (not shown), a pair of ganged selector switches determines the various amounts of two tapped inductances to be connected in each of any two transmission lines and a further set of six ganged selectors determines in which two lines, and in what sense the selecter inductances shall be connected, and at the same time connects a resistor into the third line.