baber/WOPTO huggingface dataset:
Patent GB-663443-A (GB)
Title: Folding seats
IPC: A47C4/20
Filed: 1949-09-15
Abstract: 663,443. Seats. BALDWYN, H. A. Sept. 15, 1950. [Sept. 15, 1949] No. 23778/49. Class 52 (ii). A folding chair comprises a seat frame having side limbs, a front legs member pivoted at the front of the frame side limbs and a rear legs member pivoted to the rear of said side limbs, the legs side members being extended beyond its pivots to form or carry stops for abutment against the upper side of the seat frame side limbs when in the operative position of the chair. As shown the seat frame 1 comprises a U-shaped member having side limbs 2 and a. front transverse member 8. The front legs member is a similar U-shape the side members 4 being pivoted to the side limbs 2 at 9 and adapted to abut against the transverse member 8 when the chair is erected. In addition a toggle stay 12, 13 is provided as shown. The rear legs member is also of U-shape the side members 5 being pivoted at 18 to the rear of the seat frame side limbs 2 and extended beyond such pivot to carry a transverse rod 17 which abuts against the upper side of the side limbs 2 when the chair is erected. Any form of back rest may be provided but as shown may comprise side members 19 pivoted to the side limbs 2 at 21 and provided with a swivelling back rest 20. In addition lugs 22 are provided adapted to spring over the bar 17 when the chair is erected.
Patent GB-1475641-A (GB)
Title: Laser optical cavity
IPC: H01S3/093
Filed: 1975-06-02
Abstract: 1475641 Lasers RAYTHEON CO 2 June 1975 [3 June 1974] 23820/75 Heading H1G A curved resonator reflector 10 for an annular beam L, Fig. 1, of stimulated radiation is formed by a first mirror 17 of which the surface is that generated by an arc of a parabola rotated about the resonator axis with its focus fr 1  spaced uniformly from that axis, and a second mirror 13 of which the surface is that generated by an arc of a circle rotated about the resonator axis with its centre following the path of the parabola focus, the arrangement of mirrors being such that the annular beam is deflected by mirror 17, returned by mirror 13 and turned back along its original path by mirror 17 with a path length which is the same for all rays in the beam cross-section. Consequently the reflector may be moved longitudinally along the resonator axis for tuning purposes without the loss of spatial coherence in the beam inherent to the use of a single curved mirror. A similar reflector 12 formed by mirrors 19, 15 may be provided at the other end of the resonator, the mirror 15 being partially transmissive to provide an output beam focussed at fe by an external mirror 21 formed by the surface of revolution of a rotated parabolic arc. The mirror surfaces may be formed at the ends of a solid active medium, but in the arrangement described a gas or liquid active medium is contained in the annular space between a metallic sleeve 25 and a transparent sleeve 23. Constructional details are shown in Fig. 2 in which ring members 30, 32 secure the reflectors 10<SP>1</SP>, 12<SP>1</SP> to the transparent sleeve 23<SP>1</SP> and support the external mirror 21<SP>1</SP>. Pumping is effected by a helical gas discharge tube 38 and a coolant may be circulated through the interior of sleeve 25.
Patent GB-1046466-A (GB)
Title: Improvements in or relating to the temperature control of liquids
IPC: F01P11/08
Filed: 1963-06-14
Abstract: 1,046,466. Cooling liquids in bulk. SOC. ANON. DES USINES CHAUSSON. June 14, 1963 [July 2, 1962], No. 23877/63. Heading F4S. A liquid, e.g. oil, is cooled as it flows through tubes below the surface of a cooling fluid in a casing 1, a tube 12 at the top of the casing leading vaporized cooling fluid to a condenser 13 above said surface level and a tube 14 returning the condensate to the bottom of the casing 1. An oil tank 2 having an inlet 9 partially surrounds the casing and contains a pump 3 which draws oil from the bulk within the tank and forces it through coils 6, 6a, 6b. The condenser comprises two collecting vessels 16, 15a, one vertically placed above the other, and connected by tubes 17 which may be provided with fins 16. The condenser tubes are air-cooled by fan 19 as shown or cooled by a liquid. A thermostat probe 22 in the storage tank 2 controls the cock 21 in the tube 14 to maintain the temperature of the cooling fluid constant. In an alternative embodiment the tank is divided into a number of separated chambers by vertical partitions, through which the casing 1 extends, and a different oil is contained in each chamber, passing through a separate coil in the casing.
Patent GB-1358004-A (GB)
Title: Pattern attachment for a circular knitting machine
IPC: D04B15/66
Filed: 1972-05-22
Abstract: 1358004 Knitting-machines E MAYER [trading as MAYER & CIE MASCHINEFABRIK] 22 May 1972 [3 June 1971] 23923/72 Addition to 1324426 Heading D1C [Also in Division G3]  A pattern control system for a circular knitting machine as disclosed in Specification 1324426 further includes a repeat counter PIV connleoted to the stitch course counter ZB so that the pattern repeat length may be increased two or three times. A changeover logic circuit U includes plug-in points, AND gates and OR gates, and enable colour exchange between different knitting systems to be effected.
Patent GB-705261-A (GB)
Title: Treatment of glass materials with organosilicon compounds
IPC: C03C17/30
Filed: 1950-09-29
Abstract: Glass fabrics or fibres are rendered abrasion resistant by immersing the material in a solution prepared by acidifying to a pH no greater than 7.0 an aqueous alkaline solution of the alkaline hydrolysis of an organotrichlorosilane wherein the organo substituent is a straight chain aliphatic radical having 4-18 C atoms to obtain a deposit of an insoluble organosilicon compound on the material which is thereafter dried and heated to polymerize the coating.  The solutions may be prepared by the methods described in Specifications 675,188 and 675,233 [both in Group VIII], and may be of compounds wherein the organo substituent is an amyl, lauryl, or oleyl radical or the compound may be the sodium salt of n-butyl, lauryl or oleyl trichlorosilane.  The solution may be acidified with hydrochloric acid.  After impregnation with the organo silicon compound, and before heating the material may be further impregnated with an aqueous solution of a salt of an amphoteric metal, e.g. tin, aluminium, zinc or copper.  Fe2(SO4)3, Ni Cl2, Zn SO4, Sn Cl2, alum, Cu SO4 are specified in examples.  The material, after impregnation with the organosilicon compound, or after the secondary impregnation with the metallic salt, may be treated with ammonium hydroxide prior to heating.  The coating may be applied to glass fibres as either a primary or secondary coating in conjunction with other coating compositions.
Patent GB-632754-A (GB)
Title: Improvements in ammonium nitrate compositions
IPC: C05C1/02
Filed: 1947-09-01
Abstract: Ammonium nitrate as modification III is produced by mixing together solid ammonium nitrate and, say 8 per cent, of powdered potassium nitrate, and maintaining the unfused mixture at a temperature higher than 32.3 DEG  C. for a sufficient time to ensure the substantial stabilization of the ammonium nitrate as modification III, e.g. 10-30 hours at 40-50 DEG  C.  In place of potassium nitrate another water-soluble potassium salt, that reacts metathetically with excess ammonium nitrate, may be used, e.g. the sulphate, chloride, dihydrogen ortho-phosphate, oxalate or chromate.  Specification 573,147 is referred to.ALSO:Compositions comprising ammonium and potassium nitrates suitable, say, as fertilizers, are produced by mixing together a preponderating amount of solid ammonium nitrate and, say, 8 per cent. of powdered potassium nitrate, and maintaining the unfused mixture at a temperature higher than 32.3 DEG C for a sufficient time to ensure the substantial stabilization of the ammonium nitrate as modification III, e.g., 10-30 hours at 40 DEG -50 DEG C.  In place of potassium nitrate another water-soluble potassium salt, that reacts metathetically with excess ammonium nitrate, may be used, e.g., the sulphate, chloride, dihydrogen orthophosphate, oxalate, or chromate.  Other materials such as trinitrotoluene, liquid explosive nitric esters, vegetable carbohydrates, guanidine, nitroguanidine, alkali metal chromates, ammonium bichromate, phosphates, chlorides, sulphides, vaporizable insecticides such as d-hexachlorocyclohexane, or waxes may be added to the compositions. Specification 573,147, [Group XXI], is referred to.ALSO:Smoke-producing compositions, or fumigating compositions which contain lambda-hexachlorocyclohexane, have a combustible mixture wherein ammonium nitrate is stabilized as modification III by the inclusion of, say, 8 per cent of potassium nitrate. Specification 573,147, [Group XXI], is referred to.
Patent GB-680347-A (GB)
Title: Improvements in automatic fire-arms
Inventor: KIRALY PAUL DE
IPC: F41A3/82
Filed: 1949-09-20
Abstract: 680.347. Automatic guns. HISPANIOLA CORPORATION. Sept. 20, 1949, No. 24133/49. Class 119 Relates to fixed barrel automatic guns with blow-back action having a spring- urged striker 7 guided in a sliding breech block 4 to a pivot-pin 4a on which is connected by toggle links 6, 5 with a fixed pivot pin 5a, the links being incompletely folded over one another and therefore non- self locking when the breech is closed. According to the invention flat toggle lings 6, 5, are nested and guided between the too of the breech block 4 and the casing cover 3 which carries the fixed pivot pin 5a. In the form shown, lateral opening of the links occurs by blow-back action of the gun gases on the breech block, from the firing position of Fig. 1, to the breech-open position of Fig. 4. When open, the breech block is retained by a sear arm 13, Fig. 6, engaging a shallow bent x, the sear also retaining the striker 7. Torsion return springs 12a, 12b for the breech block and striker act through arms 10, 9 mounted on a common pivot 11. Arm 9 directly engages the striker but arm 10 acts on the breech block through pawl 19, Fig. 4, pivoted at 20 to toggle link 6. Interengaging parts 21, 22 on link 6 and striker serve to lock the striker and breech block together during rearward movement, the lock being automatically released as the link swings to open position, Fig. 4. For single-shot fire the trigger 15 is only partly pulled, and the upper notch on detent 16 engages the sear to release first the .breech block, the striker, having a deeper bent, being retained until the arm 10 engages the sear arm 14. When the trigger is let go, arm 18 thereon locks the breech block and striker, detent 16 engages incline 29 on the gun casing and sear arm 13 rises ready to retain the breech block after firing the next shot with a fresh pull of the trigger. For automatic fire, the trigger is pulled right back and sear arm 13 is withdrawn by the lower notch of the detent 16 so that the breech block is not retained in rear position, the arm 10 engaging the sear arm 14 to release the striker as before. The initial angular positions of the toggle links can be varied bv adjusting the barrel 1 by washer 1α Fig. 1.
Patent GB-1245199-A (GB)
Title: Tubular stocking and method of making same
IPC: D04B9/46
Filed: 1970-05-19
Abstract: 1,245,199. Knitting. NORTH AMERICAN ROCKWELL CORP. 19 May, 1970 [25 Aug., 1969], No. 24239/70. Heading D1K. In knitting a twisted two-ply closed stocking toe having a single ply portion 20 at the top of the toe, and in which the inner ply 25 and first portion of the outer ply 27 are knit on alternate needles, the succeeding portion 32 of the outer ply is knit on all needles. When the toe is commenced alternate needles in a predetermined arc are inactivated, holding their loops. Knitting on the active needles produces a loop of fabric around the arc and the single ply portion 20 on the remaining needles. When sufficient single ply fabric has been knit alternate needles throughout the circle are inactivated to knit a ring of multiply fabric. Following the knitting of an inner tab 62, by co-operation of transfer bits and alternate needles, the portion 32 is knit by all needles. The inner and outer plies are joined by transferring the held loops to the needles, and knitting an outer tab 70 on all needles.
Patent GB-481167-A (GB)
Title: Improvements in and relating to theatres and the like
IPC: E04H3/22
Filed: 1936-09-05
Abstract: 481,167. Theatres. HOLOPHANE, Ltd., and WILLIAMS, R. G. Sept. 5, 1936, No. 24268. [Class 20 (i)] . A theatre is constructed with screens adjacent to the side of the proscenium opening adapted to hide from the audience a space on each side from which a view of the stage is obtainable and wherein the prompter, stage manager, or lighting arrangements may be positioned. As shown in Fig. 3, the proscenium opening in front of the stage 2 is flanked bv the curved extensions 5 of the walls 1 of the auditorium, these walls diminishing in depth from the roof 3 towards the proscenium. A canopy 7 with curved sides 8 overlapping the sides of the extensions 5 defines the upper shape of the opening by its edge 10, and provides spaces 11 at each side from which a clear view of the stage is obtainable, and which are not in view of the audience within the auditorium. This canopy at its upper roof portion overlaps the edge of the auditorium roof and this provides a space 9 for light projectors for use with the stage scenery. The triangular spaces 12, Fig. 2, at each side of the proscenium opening may be screened by depending curtains from the edge 10 of the canopy 7.
Patent GB-794472-A (GB)
Title: Improvements in or relating to the determination of oblique visibility
IPC: G01S17/95
Filed: 1956-08-08
Abstract: 794,472. Measuring visibility. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Aug. 8, 1956 [Oct. 17, 1955], No. 24287/56. Class 40 (3). Visibility in an oblique direction near to an aircraft runway is determined by producing at E a very brief light signal and detecting the rearwardly diffused light by a photo-electric cell P, amplifier A and cathode-ray oscilloscope O. The light signal is produced by a spark generator G and a synchronized Kerr cell K or other shutter and is projected by a curved mirror M1. The photo-electric cell P is placed at the focus of a mirror M2 and its signals are applied to the vertical deflection means of the oscilloscope, the horizontal sweep of which is controlled from the spark generator G through a synchronizer S.
Patent GB-533451-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J9/04
Filed: 1939-08-23
Abstract: 533,451. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 23, 1939, No. 24293. Convention date, Aug. 26, 1938. Drawings to Specification. [Class 39 (i) ] In a discharge lamp with filamentary electrodes coated with emission material and heated at least in starting by the passage of current, two auxiliary electrodes are provided for each main electrode, one connected to each of the leads, so that whichever side of the electrode is connected to the main supply during the discharge one auxiliary electrode will act as an anode and lessen the bombardment of the main electrode. For this purpose the auxiliary electrode may consist of V-shaped pieces of wire facing each other in a plane slightly behind the main electrode. A starting circuit comprising a heating circuit controlled by a switch is described. The lamp may be of the type containing inert gas and mercury, and may be lined with fluorescent material, such as zinc silicate or calcium tungstate.
Patent GB-427095-A (GB)
Title: Improvements in machines for measuring and depositing jams, fluid fruits and similarsubstances
IPC: B65B39/00
Filed: 1934-07-07
Abstract: 427,095. Delivering measured quantities. WETHERALL, F. H., 36, Conville Boulevard, Higher Bebington, Wirral, Cheshiro. July 7, 1934, No. 24370/33. [Class 102 (i)] A machine, primarily intended for filling pies with jam &c. comprises a cylinder 22, Fig. 2, which is clamped by the cap of a bearing 23 and is provided with an oscillating valve 20. The valve is supplied by a hopper and discharges to a nozzle 12, which discharges downwards and is provided with an oscillating valve 13 for preventing drip. Cranks 15, 18 on the spindles 14, 19 of the valves are connected by a link 16 and are operated by a link 43 from a bell-crank lever 41 carrying a roller 39, which engages a cam groove 38 in a disc 34 carried by a shaft 36 mounted in a bearing 37. The disc also carries a crank-pin 32, which is adjustable by means of a screw and carries a roller 31 engaging a slot in a cross-head 30 on the rod 27 of the piston 26. The pies in containers 2, Fig. 4, are transferred, by an oscillating arm 3, from the moulding machine 1 to the table 4 of the filling machine and are moved beneath the nozzle by arms 6 carried by a hub 7, which is adjustable on a revolving spindle 8 by means of a clamp 9. Reference has been directed by the Comptroller to Specification 325,123, [Class 102 (i)].
Patent GB-763528-A (GB)
Title: Improvements in planographic master forming blank and method of making the same
Inventor: DALTON HAROLD RICHARD
IPC: B41C1/10
Filed: 1954-08-23
Abstract: 763,528. Coated fabrics. TIMEFAX CORPORATION. Aug. 23, 1954, No. 24517/54. Class 140. [Also in Groups XVI and XL (b)] A printing blank comprises a backing formed with an electrically-conducting coating layer and a top coating of a hydrophilic and inkrepellent material of relatively high resistance which is perforated in response to stylus applied electric discharges to expose localized areas defined by the perforations, which become hydrophobic and ink-receptive. The conductive layer 11 which may be of a film-forming plastic such as a polyvinyl resin, incorporates carbon in powdered form, and as shown in Fig. 4, comprises layers 11a, 11b of different conductivities on a backing 10 which may be of waterproofed wet strength paper, the layer 11a preferably having the greater conductivity. The top coating 12 may be formed of a material containing casein with a hardening agent, such as formaldehyde, or carboxy methyl cellulose with a hardening agent, such as an aluminium salt. The coating 12 may include a whitish pigment, such as zinc sulphide. In lieu of casein, a known lithographic coating such as water insoluble glue, starch, methyl cellulose, carboxy methyl cellulose, or polyvinyl-mcthylether-maleic anhydride polymer with a sizing agent such as " Cellosize " (Registered Trade Mark) may be used. A water-repellent ingredient, such as wax may be used with the powdered carbon to increase its water-repellency without materially affecting its inkreceptivity.
Patent GB-995475-A (GB)
Title: Process for the preparation of aqueous solutions of 3-amino-2-oxazolidone hydrochloride
IPC: C07D413/12
Filed: 1963-06-20
Abstract: An aqueous solution of 3-amino-2-oxazolidone hydrochloride is prepared by reducing an aqueous solution of 3-nitroso-2-oxazolidone with zinc and hydrochloric acid at a temperature not above 15 DEG C., the zinc being added in excess in one batch.  The starting material solution may be prepared by nitrosating b -hydroxyethyl urea, heating a solution of the N - nitroso - N - (b  - hydroxyethyl) - urea formed and nitrosating the resulting 2-oxazolidone in aqueous solution.
Patent GB-1181196-A (GB)
Title: Camping Vehicle with Retractable Console
IPC: B60P3/34
Filed: 1968-05-23
Abstract: 1,181,196. Camping vehicles. WARD MFG. Inc. 23 May, 1968 [1 June, 1967], No. 24721/68. Heading B7B. A console 45 housing a cooker, sink &c. is pivotally mounted on radius arms 80, 85 carried by the vehicle body so that it may be swung upwardly from its stowed position on the floor to an elevated position of use shown in dotted lines. A roof bow 105 having telescopic legs is also pivoted to the console to deflect the canvas covering outwardly over the console. Coiled torsion springs are incorporated in the joint 90 for the arms 85 to counterbalance the weight of the console and the pivot 71 of the arm 80 is over-centre with respect to the pivot 71 of the arm 85 and pivot 81 thus ensuring that the console is held in contact with the floor in its lowered position.
Patent GB-1424102-A (GB)
Title: Fluorescent lamps
IPC: H01J61/56
Filed: 1973-05-24
Abstract: 1424102 Fluorescent discharge lamps IONLITE Ltd 13 May 1974 [24 May 1973] 24866/73 Heading H1D In a fluorescent lamp having an envelope 10 filled with an ionizing medium, e.g. mercury vapour and argon, and electrodes 14, 15 (which may be sintered), the evelope has a portion 12 of reduced volume at or towards one electrode so that any drift of ionizing medium (e.g. mercury) results in a pressure difference which controls or counters, at least partially, the drift of the ionizing medium. The portions 11, 12 of different cross-sectional areas may be coaxial and of the same length, as shown; or the portions may form the arms of a U-tube (Fig. 2, not shown). The envelope may have constant wall thickness and progressively changing cross-section; or alternatively constant crosssection and progressively changing wall thickness.
Patent GB-1193166-A (GB)
Title: Method and Apparatus for Multi-Stage Flash Evaporation and Contact Condensation
IPC: B01D3/06
Filed: 1967-05-30
Abstract: 1,193,166. Evaporators, multi-stage flash type. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. 30 May, 1967 [27 May, 1966], No. 24894/67. Addition to 1,106,619. Heading B1B. In a multi-stage flash evaporator wherein the stages are separated by dishes, each having a conical base plate divided into two sections 8, 9 by a partition 10, the solution-to-be-evaporated 1 flows upwards through shafts 11 and over base plate sections 8, and the vapours are condensed by direct contact with cooling liquid 2 flowing downwards through shafts 12 and base plate section 9. The arrangement is such that the solution and the cooling liquid flow in uniformly shallow streams on the base plates. Solvent vapour passes from each evaporation stage into the adjoining riser shaft 11 in order to decrease the density of the column of solution. The cooling liquid may be pure solvent or a liquid which is immiscible with the pure solvent. The dishes and the container wall may be made of sheet metal or plastics material.
Patent GB-283283-A (GB)
Title: Improvements in or relating to gas purifiers
IPC: C10K1/22
Filed: 1926-10-08
Abstract: 283,283. Hollis, H. H. Oct. 8, 1926. Lids and covers.-The horizontal part 12a of the frame 12 of a gas purifier cover 13 has a rubber or other packing 19 fixed to its undersurface and brought into contact with the purifier top 1 by means of a number of clamping plates 25 mounted on vertical bolts or studs 23 fixed at intervals on the top plate. A curb 8 extends round the purifier opening 2 and receives the clamping plates when forced down by nuts 30 screwed on to the bolts 23. A channel 22 formed by the curb and packing may receive liquid to serve as a leak detector. In a modification for a dry seal only the curb 8 comprises merely a number of projections acting as stops for the clamping plates. Instead of nuts 30 or wing or ring nuts, wedges may be employed which pass through vertical slots in headless studs. The clamping plates are narrower than the channel 22 so that when turned at right angles they may fall into it. To convert an ordinary wet seal purifier a frame as of angle iron is secured to the inner wall of the seal channel and its upper horizontal portion takes the place of the top plate 1. Studs 11 may be secured to the curb to pass through holes or slots in the clamping plates.