baber/WOPTO huggingface dataset:
Patent GB-131008-A (GB)
Title: Improvements in Bomb Fuses.
Inventor: HOPE JOHN BASIL
IPC: F42C15/295
Filed: 1917-11-23
Abstract: 131,008. Hope, J. B. Nov. 23, 1917. Projectile fuses.-Relates to percussion fuses for bombs, which are armed by means of a wind-vane device as the bomb drops. According to the invention, the fuse comprises a firing- pin b having vanes d at the outer end, the pin being mounted so that it can rotate within a bush g, and having a safety sleeve c screwed on its inner end so as normally to protect the point. The bush is initially fixed by a shear-wire h. As the bomb drops, rotation of the firing-pin b, caused by the vanes, screws the sleeve c along the pin so as to allow the point to project. On impact, the wire h is sheared, the firing-pin, together with the parts g, c, being driven inwardly. A removable safetypin f, and a wire l for holding the vanes before use, are provided.
Patent GB-1058754-A (GB)
Title: Improvements relating to solid state radiation detectors
Inventor: WAKEFIELD JAMES
IPC: G01T1/24
Filed: 1963-05-02
Abstract: 1,058,754. Radiation detection system. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 21, 1964 [May 2, 1963], No. 17386/63. Heading G1A. A detector for gamma or X-ray spectroscopy by pulse height analysis consists of two solid state detector units receiving the same radiation but formed of elements having different atomic numbers. The relative thickness of the sensitive regions of the two units are chosen such that substantially equal Compton effects are produced. The electrical outputs of the two units are subtracted so that the continuum of pulse heights produced by Compton scattering is cancelled out and only discrete pulse height signals due to photo-electric and pair production effects remain. In a preferred embodiment the units are reversebiased p-i-n junctions of silicon and germanium respectively, the thickness of the sensitive region of the silicon unit being twice that of the germanium unit. The two units are followed by separate amplifiers with gains adjusted to match the pulse heights. As shown in Fig. 3 these amplifiers may be arranged to feed memory circuits for identical consecutive intervals of time through gates controlled by a free running oscillator. The signals stored in the memory circuit for the time being are subtracted and investigated by means of a pulse height analyzer.
Patent GB-208735-A (GB)
Title: Improvements in and relating to electrical apparatus particularly for changing the frequency or wave-form of alternating currents
IPC: H03B19/00
Filed: 1922-06-23
Abstract: 208,735. Taggart, J. Scott-, and Radio Communication Co., Ltd. June 23, 1922. Frequency, changing; phase, changing.-In a method of changing the frequency or wave form of alternating current, a varying electromotive force is applied to a composite conductor, such as a number of thermionic valves in parallel. As shown in Fig. 3, a source A of alternating current is connected to the grids of three valves, batteries B2, B3 being so arranged that the grid of valve V3 is at a higher negative potential than that of valve V2 which in turn is at a higher negative potential than that of valve V1. During a positive half wave from the generator A, the valves become conductive in succession, the composite characteristic curve being shown in Fig. 1. With three valves, currents of six times the frequency of source A are produced in the oscillatory circuit LC1, which is tuned to this frequency. In a modification two-electrode valves are used, the oscillator circuit LC1 being directly in the anode circuit, or coupled to a coil in that circuit, or in the anode circuit of a threeelectrode valve the grid circuit of which is connected across a resistance in the anode circuit of the two-electric valves. By varying the adjustments of the valves any desired characteristic curve may be obtained. For example, by using valves of the kind described in Specification 166,260, [Class 40 (v), Wireless signalling &c.], the characteristic may resemble a sine wave.
Patent GB-1206080-A (GB)
Title: Three-point safety belt
IPC: B60R22/22
Filed: 1969-04-03
Abstract: 1,206,080. Safety harness. FORD MOTOR CO. Ltd. 3 April, 1969 [13 April, 1968], No. 17453/69. Heading A3V. A three point vehicle safety harness has a portion 6 anchored at or near a point midway between the sides of the vehicle and comprising a flexible element 6 which remains in whatever attitude it is bent into. The flexible element 6 may comprise a cord of steel or synthetic material surrounded by a flexible vertebrated tube, or may be a soft-wire insert surrounded by the cord or woven into the material of the harness. The element 6 carries a part 8 of the harness lock and is stated to facilitate use thereof. Belt sections 1 and 2 may be distinct parts joined at lock section 5, or one continuous section.
Patent GB-1006795-A (GB)
Title: Vanadia onsilica oxidation catalysts
IPC: B01J23/28
Filed: 1962-05-07
Abstract: An oxidation catalyst is made by hydrating raw SiO2 to SiO2.nH2O where n=1 or 2, adding a vanadium compound to the hydrate to form a pasty mixture, and firing above 330  DEG C. to convert the vanadium compound to V2O5. Additionally the catalyst may contain K, Ca, Ti, Cr, Mn, Fe, Co, Ni, Cu, Zn, Mo, Pd, Ag, Cd, Sn, Ce or Pt.  Examples are given.
Patent GB-545768-A (GB)
Title: Production of chromic chloride
IPC: C01G37/04
Filed: 1940-12-10
Abstract: 545,768. Chromic chloride. PITTSBURGH PLATE GLASS CO. Dec. 10, 1940, No. 17525. Convention date, Dec. 23, 1939. Drawing to Specification. [Class 1 (iii)] Chromium bearing ores such as chromite containing more than 10 per cent. chromium are mixed with carbon and chlorinated, the rate of addition of ore, carbon and chlorine to the reaction space being such that the temperature is maintained at not less than 850‹ C. without external heating, whereby chromium chloride is formed and volatilized. A gaseous reducing agent may be used in place'of carbon. Examples give the treatement of briquettes containing ore, ground coke, sawdust and molasses in a shaft furnace preheated by a coke fire to 1000‹ C. with chlorine and briquettes containing ore, sawdust and molasses with a mixture of chlorine and carbon monoxide. Specification 533,377 is referred to.
Patent GB-841866-A (GB)
Title: Improvements in and relating to electromagnetic relays
Inventor: SMITH JOHN WALTER FREEMAN
IPC: H01H47/16
Filed: 1955-06-17
Abstract: 841,866. Electromagnetic relays; protective cut-out arrangements. ENGLISH ELECTRIC CO. Ltd. June 15, 1956 [June 17, 1955], No. 17549/55. Class 38 (5). The core 20 of a relay, Fig. 2, is split to form a local closed flux path 20a, 20b saturated by a control coil 22. The armature 21 controlling contacts 24 is operated by flux produced by the operating coil 23, the current in the coil 23 necessary to overcome the opening bias of the armature being dependent upon the reluctance of the core 20 which may be varied by variation of the current in coil 22 to alter the degree of saturation of the closed path 20a, 20b. The relay may be employed in a protective system (Fig. 1, not shown), in which the coil 22 is energized in accordance with the voltage of the protected line and coil 23 in accordance with the current so that should the line voltage drop the reduced reluctance of the relay core permits the coil 23 to operate the contacts and trip a circuit-breaker. In an actual relay construction, Fig. 3, a rectangular magnet frame 35 is saturated by the series-connected control coils 36, 37 and the operating winding 38 surrounds these coils. The flux path for the winding 38 is completed by an arm 33 and a spring-biased armature 39 pivoted thereto, an arm 41 on the armature closing contacts 31, 32 when the armature is attracted to the frame 35. In a modification of Fig. 2 (Fig. 4 (c), not shown), the closed flux circuit 20a, 20b is formed in the lower horizontal limb of the core. The characteristic of the relay may be varied by providing additional coils on the core limb having the control coil and connecting these coils in series with the operating winding. In an alternative application of the relay shown in Fig. 2, both windings 22, 23 are supplied from the same variable voltage source, but winding 23 is supplied through a capacitor-resistor circuit whereby the relay does not operate until after a predetermined time delay which is independent of the voltage.
Patent GB-1486174-A (GB)
Title: Chemical compositions
IPC: C07C333/14
Filed: 1976-04-29
Abstract: 1486174 Stabilized dithiocarbamates BUCKMAN LABORATORIES INC 29 April 1976 17552/76 Addition to 1420028 Heading ASE Pesticidal compositions comprise an aqueous medium containing a dithiocarbamate of formula:  (wherein M represents an alkali metal, R represents an alkyl group containing from 1 to 5 carbon atoms, and R' represents an alkylene group containing from 2 to 4 carbon atoms) together with an alkaline material serving to stabilise and to enhance the effect of the said compound of formula IA or IB, with the proviso that the said alkaline material does not consist exclusively of ammonia, a primary C 1  to C 5  monoalkylamine or a primary C 1  to C 4  alkylenediamine. Typical thiocarbamates are potassium N-hydroxymethyl-N -methyl-dithiocarbamate and disodium N, N'- bis-hydroxymethyl-N, N'-ethylene bis dithiocarbamate. The alkaline material may be sodium hydroxide, potassium hydroxide, sodium sulfite, disodium acid phosphite, sodium acetate, disodium acid phosphate, trisodium phosphate, sodium carbonate, sodium metaborate, sodium thiosulfate, tetrasodium salt of ethylenediaminetetraacetic acid, pyridine, triethanolamine or tetramethylethylenediamine. Optional ingredients are sodium 2- mereapto-benzothiazole and monoethanolamine. The compositions find use in combating bacteria, fungi, algae and nematodes, and may be applied to aqueous fluids such as cooling water and water used in paper mills, fresh water, water used in secondary recovery petroleum operations, plants, seeds, soil, cellulosic substances; and to proteinaceous, carbohydrate or synthetic organic polymer materials e.g. acrylic and polyvinyl acetate resins, used for example in adhesives; caulking grouting or spackling compounds, and joint cements detergents; wax emulsions and floor polishes; inks; latex emulsions; laundry starch: cutting fluid emulsions latex or water-based paints; coatings, finishes and printing colours based on starch and latex for pulp and paper; and spinning emulsions, finishing solutions, sizes and printing pastes used in the textile industry.
Patent GB-380496-A (GB)
Title: Improvements in apparatus for removing the stems from tobacco leaves
IPC: A24B5/02
Filed: 1931-06-17
Abstract: 380,496. Tobacco stemming machines. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(International Cigar Machinery Co. ; 5520, 2nd Avenue, Brooklyn, New York, U.S.A.) June 17, 1931, No. 17559. [Class 130.] In a stemming machine having devices which hold the web and the stem of a tobacco leaf separately and tear the stem and the web apart toward the butt end of the stem, the web of the leaf is held in outspread condition against the circumference of a rotatable drum, and a rotatable stem holding member provided with a number of closely arranged stem holding devices extending around its circumference takes hold of the stem of the leaf repeatedly at successive points throughout its length to insure the complete removal of the stem. Tobacco leaves L are hung on a conveyer 12 by spring clips 11 and on arrival at the stemming station the clips are opened by a cam 14 and the stem S of each leaf is gripped in a clamp 15 carried on a rod 17. The rod moves downwards and the leaf is guided into a narrow chamber 25, the clamp 15 being opened by a cam 22. The chamber 25 is connected by pipes 26, Fig. 3, to a source of suction which cleans and straightens the leaves carried through the chamber by adjustable belts 28, 31. The outspread leaves are received on a perforated sleeve 44 which rotates about a stationary drum 45, the leaves being held by suction and carried forward until they are gripped between the sleeve and an adjustable belt 50 which delivers the stripped leaves in a flat condition. In the apparatus shown in Fig. 6, the stems S are torn out of the leaves by rows of grippers formed by flanges 56 and by rows of inclined pins 58 carried by spring-pressed plungers 57 which bear on a cam 61. As the leaf L on the sleeve 44 approaches the cylinder 55 a plunger 571 drops into the depression in the cam 61 and when the stem is sufficiently thick it is gripped as shown in Fig. 9, and pulled away from the leaf, the stem S being gripped anew each time a plunger passes through the horizontal plane, thus ensuring the stemming of torn leaves. Rotating brushes 66, 67 clean the cylinders 44, 45. If the gripping action on the stem causes the leaf to belly outwards rotary knives 68, 69 rip the leaf near the stem to start the normal tearing action. The removed stems fall on to a shoot 73. To adjust the thickness of the stem at which the stemming means start to tear out the stem the sleeve 44 and the cylinder 55 are moved relatively, the sleeve 44 being adjusted by a screw 86 and a pin 87. In a modified construction, shown in Fig. 11, the stems are stripped by a carded drum 76. The leaf is held on the sleeve 44 by belts 74 and the stem is removed by rows of pins 79 on the drum. A second drum 80 mounted on a shaft 81 eccentrically with respect to the shaft 77 carrying the drum 76 carries pins 83 so that as the drum 76 turns round the pins 83 rise between the pins 79 to push the stem from the drum as shown in Fig. 17. Specification 380,823 is referred to.
Patent GB-221313-A (GB)
Title: Improvements in the manufacture of formed cutters
IPC: B24B3/12
Filed: 1923-07-07
Abstract: 221,313. Herbert, Sir A., Lloyd, A. H., and Shaw, F. W. July 7, 1923. Milling-cutters; taps.-The teeth of formed cutters such as milling-cutters, hobs, taps &c. are, when completed, relieved in two stages so that only the leading portion of each tooth requires accurate grinding after hardening. In Fig. 1, the rear portion only of a tooth A<2> is first relieved at a steeper angle than normal, and the correct relief is, after hardening, imparted to the, front portion A<4> by means of a grinding-wheel B. In a modification, the whole of the tooth may be first relieved at a steep angle and the normal relief subsequently imparted to the front portion by grinding. In a further modification, Fig. 3, the rear portion A<3> of the tooth may be cut back as shown and the front portion ground correctly after hardening. Other modifications of the process are described. For grinding the sides of the teeth a disc grinding-wheel with a conical surface B<2> may be used or, in a modification, a grinding-wheel with a double conical surface may be arranged so that lateral movement of the wheel brings each surface into operation in turn upon opposed sides of adjacent teeth. Specifications 16789/07 and 25636/10 are referred to.
Patent GB-274273-A (GB)
Title: Improvements in suit cases or like articles of personal luggage
IPC: A45C7/00
Filed: 1926-07-14
Abstract: 274,273. Gandell, W. R. K. July 14, 1926. Suit cases.-A suit or like case consists of a lower box-shaped member b and a flanged upper member a fitting thereover and provided at the ends with one or more locking members c each adapted to engage one of a series of superposed slots e in a member d secured to the lower part, and at the sides with spring catch members f similarly adapted to engage slots g. The body part b is provided with horizontal partitions h fitting into grooves i at one side and resting on ledges k beneath retaining clips l at the other, and may also have retaining straps n. A partition x of not less than the size of the part b, suspended by tapes s from the upper member so as to rest upon the lower member, serves to retain in place articles stored within the upper part. To facilitate carrying, an additional adjustable handle p secured by spring catches to the appropriate pair of slots q may be provided on the upper member.
Patent GB-878229-A (GB)
Title: Improvements in and relating to fabrics having depressions or pockets therein
Inventor: JACKSON NORMAN
IPC: A41D27/20
Filed: 1958-06-03
Abstract: A fabric having pockets therein, e.g. a bakery prover cloth, is constructed from thermoplastic polyolefine yarns of high extensibility, the pockets being formed in the fabric by moulding under heat and pressure.  The fabric is knitted or woven from monofilamentary polythene yarn having an extensibility of at least 30% and preferably 50 to 100%.  Two examples are given in which fabric made from polythene yarn having a melting point of 134 DEG  C. to 135 DEG  C. is shaped in a mould at 100 DEG  C. with two hemispherical pockets 6 inches in diameter and 3 inches deep.
Patent GB-1260227-A (GB)
Title: Cosmetic compositions
Inventor: KALOPISSIS GREGOIRE
IPC: A61K8/46
Filed: 1969-04-03
Abstract: 1,260,227. Depilatory. L'OREAL. 3 April, 1969 [5 April, 1968], No. 17705/69. Heading A5B. [Also in Division Dl] A depilatory composition contains a sulphydryl reducing agent of the formula: where R represents either  R 1 , R 2 , R 3  and R 4  represent H, OH, COOH, CH 2 OH or NH 3  and may be the same or different providing that (a) both R 1  and R 2  are not H or OH, or one H and the other OH, and (b) both R 3  and R 4  are not H. R 1  and R 2  together and R 3  and R 4  together may represent a divalent radical forming a cyclic structure which may contain a hetero atom. The composition contains 0.5-10% by weight of the agent, has a pH of 11-13, and is preferably in the form of a lotion, cream or gel. Example 3 relates to an aqueous cream containing 1, 4-dimercaptobutanediol-2, 3 (threo); calcium hydroxide; urea; and oxyethylenated alcohols (thickening agent).
Patent GB-516528-A (GB)
Title: Improvements relating to machines for exercising a rotary rubbing pressure on the peripheral underside portions of the bottoms of boots, shoes and like articles of footwear
IPC: A43D55/00
Filed: 1938-06-14
Abstract: 516,528. Channel-flap laying machines. BATA AKCIOVA SPOLECNOST. June 14, 1938, No. 17734. Convention date, June 14, 1937. [Class 17 (i)] A machine which can be used for laying a channel flap comprises a work support relatively fixed in position and a rotating tool mounted on a carriage having means for rotating the tool, the carriage being traversed round the work support so that the tool operates progressively on the peripheral portion of the underside of the shoe.- The tool 1 is a grooved roller of hyperboloid form carried by a shaft 2 rotated by gearing from an electric motor 13. The shaft carries a ball 4 from which project a pair of diametrically opposed pins 6 engaging longitudinal grooves on the inner surface of the tool. A nut 5 screwing into one end of the tool acts as a stop. The other end of the tool is resilently centred by a conical member 11 urged toward the tool by a spring. This mechanism is carried on a carriage guided by rollers 27 on horizontal axes and rollers 30 on vertical axis, the latter rollers engaging tracks secured to members 19, 20 adjustable towards and from each other by a hand - wheel 31, the adjustment compensating for the length of shoe. Rails 32, 33 secured to one member and sliding in the other bridge the gap if one exists. The shoe is carried by a jack above an opening in a cover 34, the lower part of the shoe extending through 'the opening in contact with the tool. The tool is traversed around the edge of the sole, or to and fro about the fore-part from the heel breast line on one side to that on the other, by a slide 23 pivoted to the carriage and engaging a slot in a rotating disc 22. For pounding-up the axis of the tool may be tilted. A pair of similar mechanisms may be combined in one machine. A damping roller D may be mounted adjacent to the tools.
Patent GB-966747-A (GB)
Title: Improvements in or relating to machines for working sheet metal
Inventor: COOKSON WILLIAM
IPC: B21D13/02
Filed: 1960-05-19
Abstract: 966,747. Stamping; angular bending; shearing. COOKSON SHEET METAL DEVELOPMENTS Ltd. April 20, 1961 [May 19, 1960], No. 17768/60. Headings B3E, B3Q and B3W. A sheet metal working machine having co-operating press tools to receive an end portion of a ribbed metal sheet and adapted to deform and shape that end of the sheet to close the ends of the ribs and leave a flat margin at the ends of the -ribs has means for bending the flat margin to form a laterally extending flange at the edge of the sheet and means for trimming the free edge of the margin. The machine is provided with a horizontal table 24 and a ram plate 27 carried by the rams of two vertical hydraulic cylinders 28 and 30 is reciprocable between frames 14 and 16. A first wiper plate 42 is slidably mounted in guides 38 and 40 and actuated by an hydraulic cylinder 44. On the table 24 two side guides 46 and 48 slidably accommodate a second wiper member 50 actuated by an hydraulic cylinder 52. Sliding cams 54 movable with the member 50 raise or lower the slidable backing plate 56 under the front edge of the bed plate 32. A guillotine knife 58 is provided on the top edge of the second wiper member which co-operates with the top edge 60 of the plate 56. Three male tools 62 are mounted on the bed plate 32 and corresponding female tools 64 are mounted on the ram plate 27. The tools co-operate to deform and shape the end portions of the ribs 76 of the roofing sheet 72 to close the ends 78 and leave a flat portion 82 which is first bent downwardly and then inwardly, Fig. 5. In Fig. 8 the tools are shown closed over rib 76 with the cams 54 holding the backing plate 56 in its operative position in recess 94. The wiper plate 42 is actuated to bend down the flange 82 after which the second wiper plate 50 is moved forward and the top edge 100 of the plate bends the flange 82 around the support piece 95, Fig. 9. Before bending the flange the knife 58 and bit 60 trim off the surplus and ragged edge of the flange. Roofing sheets having trapezoidal ribs, Fig. 11, are shaped to close the ends of the ribs by means of a machine according to the invention. In this embodiment the slanting sides 108 of each rib are folded inwardly under the top portion 110 so forming pleats 113. Instead of the hooked flange 116 a downwardly directed flange 118 may be formed. A pleat controlling device 140 is mounted on a bridge plate 142 secured to the machine table 24. The device comprises a spring-loaded swingable arm 148 to which is attached a support 150 having two downwardly directed prongs 152, Fig. 15. During the rib closing operation the prongs 152 inwardly press sides 108 of the rib 106 to kink them as at 160 to ensure that the edges of the rib start to make uniform folds to form the pleats 113.
Patent GB-102732-A (GB)
Title: Improvements in or relating to Apparatus for Feeding Petrol, Oil or the like to Engines or other Apparatus.
Inventor: BOZEC LEON LE
IPC: B60K15/00
Filed: 1916-12-11
Abstract: 102,732. Le Bozec, L. Dec 11, 1915, [Convention date]. Check lift valves.-A non-return valve comprises a disk h inside the cap i provided with orifices j, k.
Patent GB-545264-A (GB)
Title: Improvements in electric lighting fittings
IPC: F21V19/00
Filed: 1940-12-19
Abstract: 545,264. Electric lamp supports. EDISON SWAN ELECTRIC CO., Ltd., and COCKSEDGE, F. M. Dec. 19, 1940, No. 17863. [Class 75 (iii)] A trough-shaped reflector 2 having a tubular fluorescent lamp 1 arranged at its focus is mounted in a tubular frame 3 secured to a castiron base 4 allowing 'the lamp to be used in either a vertical or horizontal position. The base 4 may be fitted with supporting wheels 5, 7 and the frame 3 with an adjustable extension carrying one or more castors 6. The electric leads pass through the frame 3 which may be fitted with a lamp switch 9. Specification 253,366, '[Class 39 (iii)], is referred to.