baber/WOPTO huggingface dataset:
Patent GB-579593-A (GB)
Title: Improvements relating to safety razor blade sharpening appliances
IPC: B24D15/08
Filed: 1945-02-01
Abstract: 579,593. Razor - blade sharpeners. ARMSTRONG, L. A. Feb. 1, 1945, No. 2542. [Class 60] A razor-blade sharpener comprises a rigid base carrying a stropping surface and a blade actuating roller below said surface, the roller being engaged by a razor for reciprocation and also for turning the blade over at the end of each stroke. The base 5 carries a strop 3 on a thin indented metal plate 4. The roller 8, running on the friction pad 10, is provided with locating flanges 9, a pinion 16 to mesh with a toothed wheel mounted on the blade spindle 15, and journals 11 to engage open-ended slots 13 in frame 12 of the razor which is of the type described in Specification 407,813, [Group XIV]. The ends 3A of the stropping surface 3 incline downwardly to enable the cutting edge of the blade 14 to meet the surface 3 without impact. Specification 407,904 also is referred to.
Patent GB-980683-A (GB)
Title: A coupler for longitudinally coupling two tubes
IPC: F16B7/04
Filed: 1961-01-23
Abstract: 980,683. Clamps. H. NUSSLI. Jan. 23, 1961, No. 2556/61. Heading E2B. A coupler for longitudinally coupling two tubes comprises two substantially semi-cylindrical shells 1, 1A, each shell having a yoke 2 and means 3A, 6 for connecting the yokes of the respective shells. In the construction described each shell has three yokes 2, two towards one end and one towards the other, the single yoke near one end of each shell having its ends received between the ends of the two yokes near the other end of the other shell, such yoke ends being joined by hinge pins 3a on one side of the tubes and wedges 6 on the other side of the tubes to prevent longitudinal displacement of the tubes. The wedges 6 are offset from the junction between the shells and opposite sides of the junction.
Patent GB-1120703-A (GB)
Title: Jig washers for concentrating carbon or other minerals
IPC: B03B5/20
Filed: 1966-01-20
Abstract: 1,120,703. Jig washers. WESTFALIA DINNENDAHL GROPPEL, A.G. 20 Jan., 1966 [23 Jan., 1965], No. 2731/66. Heading B2H. A jig tank for concentrating minerals has a jigging compartment with a separating screen 3 and compressed air chambers 4 open at the bottom and arranged underneath the screen 3, the compartment having a longitudinal doublewall forming a blast box 5 inside which are arranged valve controlled pipes 6 supplying air to the chambers 4. Each of the pipes 6 is forked at its upper end with one branch 8 connected to an air outlet opening 11 located in the cover 9 of the blast box and controlled by a valve 13 and with the other branch 7 opening out in the box at a distance underneath the covering and provided with an air inlet opening 10 controlled by a valve 12. The valves 12, 13 may be of the plate or rotary type. As shown, the tank has two jigging compartments 1, 2 each arranged on one side of the blast box 5. For each two oppositelylying air chambers 4 there is arranged an air supply pipe 6. Alternate opening and closing of the valves 12, 13 cause the air to pulsate in the air chambers.
Patent GB-729747-A (GB)
Title: Improvements in electric arc welding systems and apparatus
IPC: B23K9/073
Filed: 1952-02-01
Abstract: 729,747. Supply systems for welding arcs. FOSTER TRANSFORMERS, Ltd., [formerly FOSTER TRANSFORMERS & SWITCHGEAR, Ltd.], and JENNINGS; R. E. Jan. 28, 1953 [Feb. 1, 1952], No. 2751/52. Class 38 (4). An A.C. welding arc is started by a highfrequency spark-gap type oscillator which injects high-voltage pulses into the welding circuit, the oscillator being automatically disabled when welding current flows and the arc then being maintained by relatively low-voltage pulses obtained from a condenser which is discharged into the welding circuit when the arc voltage is passing through zero. As shown in Fig. 1, a transformer TC, energized from the welding circuit and associated with an oscillatory circuit 5, 19, develops sufficient voltage under non-welding conditions to break down spark [gaps 21, 10, 11, so that high-frequency high-voltage pulses are applied to the welding electrodes, W to strike the arc. Welding current then flows and the consequent. reduction in the welding circuit voltage renders transformer Tc incapable of breaking down the gap 21, so that the high-voltage pulses cease. The arc is, however, maintained whilst the circuit voltage is passing through zero by a pulse obtained from a transformer Tb which triggers a gap 10, 12 and allows a condenser 8 to inject a relatively low voltage pulse into the arc. The condenser 8 may be charged from a transformer Ta supplied through a phasing condenser 6, or charged directly from the mains. A single- or full-wave rectifier may also be included in the charging circuit. In a modified arrangement, the single gap 21 and triple gap 10-12 are replaced by a four-electrode gap. A condenser may shunt the secondary winding of transformer Tb to prolong the triggering pulse. Specification 729,745 is referred to.
Patent GB-773417-A (GB)
Title: Bent glass and method of bending
Inventor: FOWLER IVAL GALE
IPC: C03B23/027
Filed: 1955-01-31
Abstract: 773,417. Bending, tempering and cutting glass. LIBBEY - OWENS - FORD GLASS CO. Jan. 31, 1955, No. 2771/55. Class 56  A method of bending glass sheets, annealing them and subsequently pattern-cutting them, particularly for vehicle windscreens, comprises bending the heated blank while on a former and controlling the cooling of the bent sheet during annealing so as to' create areas of tension and compression in the sheet and then pattern-cutting it along a line such that the whole or at least some portion or portions, of the peripheral edge of the pattern-cut bent sheet is/are in compression. In Fig. 8 the compression zones 31 in two sheets 10, 11 bent together, along which zones the cuts are to be made are formed by a baffle plate 23 within and spaced from the peripheral member 16 of the bending frame, the portions c, d of the sheets above members 16, 23 being in tension. In Fig. 9 the compression bands 34 are formed by positively cooling, by means of coolers 37, the bending frame members 33 during annealing.
Patent GB-1070342-A (GB)
Title: Improvements in or relating to protective footwear and to lasts for the use in the manufacture thereof
Inventor: DENTON GEORGE ANTHONY ELLIS
IPC: A43B7/32
Filed: 1965-01-21
Abstract: 1,070,342. Boots &c. INTERNATIONAL SAFETY PRODUCTS Ltd. Jan. 12, 1966 [Jan. 21, 1965], No. 2792/65. Heading A3B. A toe cap 11, e.g. of steel, for protective footwear is made symmetrical about a vertical plane extending lengthwise through the toe cap 11 so that the toe cap can be used for both left and right shoes. The toe caps are made two at a time by making a pressing having the shape of two toe caps arranged back to back and then separating the caps by two parallel cuts 17, the position of each cut 17 determining the size of the toe cap. The split pressing is then trimmed to form a base extended at an angle of 83 degrees to the plane of the cuts 17 and the base is turned in to form a. flange 25. The shoe is made on a last (not shown) having a symmetrical toe part, the plane of symmetry being inclined at an angle of 3 degrees to the longitudinal axis of the last.
Patent GB-988611-A (GB)
Title: Dentifrices
IPC: A61Q11/00
Filed: 1960-01-26
Abstract: A dentrifrice comprises an extract of the plant Salvadora persica. The dentrifrice may be in the form of a tooth paste, tooth powder or mouth wash.  An example is provided of a tooth paste containing Salvadora persica extract, thymol, menthol, oil of cloves, oil of rose geranii, potassium chlorate, benzoic acid, saccharin, hard soap, prepared chalk and glycerin.  The leaf stems and/or stems and/or root of Salvadora persica are crushed and macerated with water.  The liquid is strained or filtered off and the residue further treated with water to provide further aqueous extract which is evaporated under reduced pressure to produce a solid extract.  A preservative such as sodium benzoate may be added to the liquid extract.  An alcoholic extract may also be prepared.
Patent GB-1023217-A (GB)
Title: Photographic products and processes
IPC: G03C1/053
Filed: 1963-01-23
Abstract: 1,023,217. Photographic materials. INTERNATIONAL POLAROID CORPORATION. Jan. 23, 1963 [Jan. 31, 1962], No. 2892/63. Heading G2C. Polyvinyl alcohol etherified by reaction with ethylene oxide is used at least in part as the colloid binder in photosensitive emulsions. When another binder is also present it may be gelatin phthalic anhydride derivative. The emulsion may contain conventional photosensitive compounds and additives and be coated on conventional supports, all of which are exemplified. They are particularly suitable for silver salt diffusion transfer processes especially where the emulsion and receiving layers are integral.
Patent GB-1447901-A (GB)
Title: Optical instruments
IPC: A61B1/227
Filed: 1974-01-22
Abstract: 1447901 Endoscope AMERICAN OPTICAL CORP 22 Jan 1974 [22 Jan 1973] 02896/74 Heading G2J [Also in Division A5] An endoscope includes a probe portion 14 which is flexible at its object end where it comprises a series of articulated annuli 58, control means being provided at the viewing end of the endoscope to articulate the annuli and flex the object end. The annuli are threaded on wires 56 secured to a pulley (84) operated by a wheel (86) on the probe, see Figs. 1, 3 (not shown), and each annulus has a pair of lugs 62 pivoted in sockets in an adjacent annulus. Optic fibre bundles 28, 32 separated by coaxial sleeves transmit light respectively from a lamp (24) to the object and from the object to eye-piece lenses (38) at the viewing end. Three lenses (42) at the object end, Fig. 2 (not shown), form an objective for the bundle 32.
Patent GB-1385792-A (GB)
Title: Methods and apparatus for testing cigarettes
IPC: A24C5/34
Filed: 1972-01-21
Abstract: 1385792 Testing cigarettes MOLINS Ltd 21 Jan 1972 [26 Jan 1971] 2898/72 Heading A2C [Also in Division H4] The firmness or texture of the end portion of a cigarette is tested by directing a gas stream towards the end portion, so as to generate a characteristic sound or gas pressure change, and detecting with a microphone such sound or pressure change. In the Fig. 2 embodiment, cigarettes C held by suction on a rotating fluted drum 3 are carried in turn past a testing station 6 at which air from a nozzle is directed at the cigarette end face. Any sound produced, indicative of a soft end or missing filter tip, enters a tube coaxial with the nozzle and impinges on a microphone supported in station 6 by an antivibration mount. The microphone output is amplified, full-wave rectified and compared with an adjustable threshold value. If this value is exceeded a solenoid air-valve 21 is actuated directly, or via a delay, for ejecting the cigarette. In various modifications both ends of the cigarette may be tested simultaneously by duplicating at least part of the station 6, and the air stream may be directed obliquely against the side of the cigarette end portion so as to deform a deflective end portion.
Patent GB-1044881-A (GB)
Title: A buckle section
IPC: A44B11/25
Filed: 1964-01-23
Abstract: 1,044,881. Safety belt buckles. A. G. CARTER. Jan. 23, 1964 [Feb. 1, 1963], No. 2934/64. Heading E2A. A buckle section includes a frame; belt receiving means; shaft means mounted on said frame; means engageable with the shaft means to fix the shaft means non-rotatably with respect to said frame; first and second members mounted on the shaft means rotatably with respect to each other and to the frame; spring means surrounding the shaft means and having portions thereof non-rotatively fixed with respect to the shaft means and having two portions thereof engaging the first member and the second member, respectively, the spring means applying opposite biasing to the members, respectively, the first member being movable to a releasing position in the direction of release of the buckle section when in engagement with another buckle section. In a first embodiment a shaft 44, Fig. 5, is mounted in a frame constituting one section 30 of a safety belt buckle. The shaft carries a spring 59 urging a first member in the form of handle lever 42 anti-clockwise, and a spring 52 urging a second member in the form of a cam member 48 clockwise. The cam member serves to maintain apertures 25, 26 in a tongue portion 27 of a second buckle section 20, in engagement with abutments 28, 29 on the section 30. Engagement of the buckle sections is effected as shown in Fig. 5, the portion 27 moving the member 48 anti-clockwise against the action of the spring 52 until the apertures engage the abutments when the member 48 returns to its normal position (Fig. 3, not shown). Release of the buckle sections 20, 30 is effected. by rotating the handle lever 42 clockwise through an angle of just over 90 degrees, against the action of the spring 59. This causes the member 48 to rotate clockwise under the action of the spring 52, or by contact with the edge 72 of the handle lever, to free the tongue portion 27. In a second embodiment, Fig. 9, a weight 87 is inserted in the handle lever so that inertia forces created in a crash which would tend to throw the lever to its releasing position are minimized. In a third embodiment Fig. 10, the handle lever and cam member are mounted on separate shafts 96, 99 respectively and are urged to the position in which the cam member retains a tongue portion 101 by springs 97, 100 respectively. The portion 101 is freed by rotating the handle lever 104 clockwise, a rod 106 thereon engaging extensions 107 on the cam-member 98 to rotate the latter anti-clockwise. In each embodiment the length of the safety belt is adjusted by a terminal assembly which is integral with one or other of the buckle sections or is a separate member and comprises a fixed generally cylindrical bar 33, Fig. 5, and a generally rectangular bar 34 slidable in grooves 31, 32, Fig. 1, the bars clamping a portion of the belt end between them.
Patent GB-867728-A (GB)
Title: Improvements in concrete finishing machines
Inventor: MORO-LIN JOSEPH JOHN
IPC: E04F21/24
Filed: 1959-01-27
Abstract: 867,728. Surface finishing machines. KALMAN FLOOR CO. Jan. 27, 1959, No. 2985/59. Class 107 In a hand operated concrete or the like finishing machine, rotational and vibrational movement is imparted to the surfacing member. The machine comprises a housing 10 through which passes a drive shaft 12 which rotates a drive plate 16 which is resiliently coupled to a work plate 20 by brackets 27. Pinions 47 mounted on the drive plate mesh with a sun gear 33 which is freely mounted on the shaft 12. A clutch 45, operated by lever 70 attached to the operating handle mounted on the housing 10, connects a part 37 of the sun gear to a rim 39 which forms part of the housing. Each of the four pinions is coupled via pulleys 53, 55 to a rotatable mass 63 eccentrically mounted on the master plate 23, attached to work plate 20, with its axis perpendicular to adjacent masses. Each mass is arranged to produce vibration in antiphase to its adjacent masses and in phase with its opposite mass. Operation of the clutch clamps the sun gear to the housing and the pinions rotate, rotating the masses and vibrating the work plate.
Patent GB-665680-A (GB)
Title: Improvements in or relating to the production of n-p-chlorophenyl-n-isopropyl biguanide
IPC: C07C279/26
Filed: 1949-02-03
Abstract: N1 - p - Chlorophenyl - N5 - isopropylbiguanide is manufactured by heating the p-chlorophenylcyanamide salt of isopropylguanidine (obtainable by the process of Specification 665,679).  The salt may be heated either dry or in a liquid medium which may be a solvent for the salt or the biguanide compound or both or neither, preferably in a solvent for the biguanide compound which is a non-solvent for the salt, e.g. a high-boiling non-polar solvent such as benzene, toluene or anisole, the reacting being advantageously carried out at the boiling-point of the solvent.  Examples describe the use as starting materials of the products of examples (1) and (2) of Specification 665,679. Specifications 607,720 and 622,266 also are referred to.
Patent GB-104526-A (GB)
Title: Improvements in or relating to the Construction of Cottages and other Buildings and of Reinforced Concrete Slabs to be used in the same.
Inventor: JACKSON HARRY
IPC: E04B1/04
Filed: 1916-03-01
Abstract: 104,526. Jackson, H. March 1, 1916. Moulds.-The moulds in which slabs for walls, floors, and ceilings, are cast are formed in two parts; the lower part comprises a base-board e, Fig. 18, and detachable battens f, k with halfcores g, and the upper part comprises battens m, n with half-cores and top end pieces p. The battens are secured to each other a.nd to the base by bolts b<1>, and the reinforcement is supported as shown.
Patent GB-588321-A (GB)
Title: Improvements in or relating to cigarette papers
IPC: A24F17/00
Filed: 1945-02-08
Abstract: 588,321. Cigarette papers. RIISER, H. H. Feb. 8, 1945, No. 3242. [Class 96] [Also in Group VI] Ungummed cigarette papers having the fibres of one or both of their longer edges exposed continuously are made by drawing a paper web W past a splitting member after applying one or more narrow bands of liquid and diverting the separated strips to bobbins B. The liquid may be water or glycerol, which may be flavoured with peppermint, and it is applied by one or more discs g preferably rotated by the web j. The web W preferably of " long fibred " paper, may initially be cut at intervals whilst passing over a grooved roller by pivoted knives which engage one end of the grooves, the knives being withdrawn when the slit portions of the web reach the splitting member. The short slit portions of the web having clean cut edges are discarded. A heating chamber through which fluid is circulated is disposed adjacent the bars f to drive off excess moisture. The bobbins B are removed from the drums j and cut, perforated or folded to provide the finished cigarette papers. As described, the web is drawn across a table by suction inside a hollow perforated roller rotating at higher speed than its feed rollers and held by a brake periodically while a transverse cutting knife co-operates with a fixed blade under the web. Each disc g may have a straight or sinuous edge or may be replaced by a toothed wheel. Alternatively, the web W is moistened whilst passing over a table T, Fig. 7, by a stylus device formed by a liquid reservoir containing a feed wire i' and a capillary tube i' and carried by a pivoted arm k.
Patent GB-675391-A (GB)
Title: Improvements in and relating to packings, boxes or like containers for lamps and similar articles
IPC: B65D85/42
Filed: 1950-02-08
Abstract: 675,391. Lamp cartons. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 8. 1950 [Feb. 25, 1949], No. 3265/50. Class 18. A carton for incandescent bulbs is formed: from a single blank of paper having a corrugated lining paper therein and comprises, a rectangular sleeve 1 and a diagonal partition 2 contiguous with one end of said blank and arranged so that bulbs inserted fromopposite ends of the carton overlap along, opposite sides of said partition and are resiliently held therein. Slits as at 22 are formed part way along the median line of the partition from each end and also along; the line joining the partition to the contiguous side 17 in a similar fashion and crease lines as at 29, 31 also at each end permit the partition to deform for gripping the bulbs. A pair of sleeves may be inserted into a further open-ended carton, the sides of the latter covering the open ends of the sleeves.
Patent GB-1495232-A (GB)
Title: High molecular weight insoluble carbodiimidisation catalysts
IPC: C07B61/00
Filed: 1976-01-28
Abstract: 1495232 Carbodiimides; uretoneimines, substituted cyclic phosphine oxides and phosphine sulphides BAYER AG 28 Jan 1976 [1 Feb 1975] 3268/76 Headings C2C and C2P [Also in Divisions C1 and C3] Carbodiimides may be prepared from compounds containing at least one isocyanate group in the presence of a catalyst which comprises a high molecular weight matrix having attached thereto via ionic bonds a compound known as a catalyst for the carbodiimide-forming reaction. Preferably the catalyst comprises a polymeric matrix to which is attached via ionic bonds a cyclic phosphine oxide or phosphine sulphide (for details of the catalysts see Divisions C1 and C3). The catalysts may be selective in their action in that in a mixture if isocyanate compounds, lower molecular weight isocyanates will be carbodiimidized in preference to higher molecular weight isocyanates for steric reasons. In a typical Example (14) an isomeric mixture of tolylene-2,4- and 2,6-diisocyanate is mixed with a variety of the above preferred catalysts to form the corresponding diisocyanato-carbodiimide part of which is then converted into the corresponding uretone imine triisocyanate by the free tolylene diisocyanate still present. Compounds of the formula wherein R<SP>1</SP> represents a C 1-14  alkyl, aryl or aralkyl radical, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> each represent a C 1-4  alkyl group, hydrogen, chlorine or bromine, R<SP>5</SP> represents hydrogen, C 1-12  alkyl, and if b = 0, may be C 6-12  aryl, X and Y represent oxygen or sulphur and a and b are 0 or 1 may be prepared by reacting the corresponding 5-membered phosphine oxides or sulphides with the corresponding phosphorus acid or ester thereof, followed optionally by saponification. Several examples are given and in a typical Example (1) a 1 : 1 mixture of 1-methyl-1-oxophospholine-2 and 1-methyl-1-oxophospholine-3 is reacted with dimethyl phosphite in the presence of dibenzoyl peroxide to form 1-methyl-1-oxophospholane phosphonic acid dimethyl ester, which is then saponified to the corresponding phosphonic acid. These compounds containing acidic groups may be reacted with high molecular weight matrices which contain basic groups, and are used as catalysts in the formation of carbodiimides from isocyanates.
Patent GB-1043961-A (GB)
Title: Improvements in or relating to the moulding of polyether
Inventor: MUSGROVE IVOR
IPC: B29C33/00
Filed: 1964-01-25
Abstract: 1,043,961. Moulding polyether foam. VITAFOAM Ltd. April 13, 1965 [Jan. 25, 1964], No. 3315/64. Heading B5A. An article of polyether foam, e.g. a cushion, is moulded with cavities therein, the cavities being so spaced that using a predetermined polyether mixture articles are produced having predetermined density variations. To make a chair seat, foamable mix is placed in a mould 17  which is then closed by a lid 19 having pegs 20 and 21 extending therefrom. The pegs 20 project into what will form the front of the seat and are thicker and more closely spaced than the pegs 21 whereby the foam forming the front part of the seat is more dense than the rest of the seat. To facilitate removal of the moulded article, stripper bars 22 are provided and the mould parts may be waxed.
Patent GB-626990-A (GB)
Title: Improvements in and relating to die casting
IPC: B29C45/73
Filed: 1947-02-05
Abstract: 626,990. Injection moulding machines. VLTAVSKY, V. Feb. 5, 1947, No. 3464. A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 5, 1947. [Class 87 (ii)] [Also in Group XXII] In casting synthetic substances, e.g. synthetic resins or the material known under the Registered Trade Mark " Pollopas," or easily fusible metal in a two-part die 1, 2 in which the part 2 includes a pressing chamber 4, the part 1 has a heating body 7 arranged to form one end of the chamber 4 and lie in the parting plane as do the ducts 6. The body 7 makes limited contact with the closing block 1 which thus becomes only moderately heated. The material is thus discharged into the cavity 3 at the rate at which it is softened by the heating body and keeps the heater at a uniform temperature.