baber/WOPTO huggingface dataset:
Patent GB-920552-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B35/06
Filed: 1961-02-08
Abstract: 920,552. Sewing-machines. G. M. PFAFF A.G. Feb. 8, 1961 [Feb. 13, 1960], No. 4651/61. Class 112. A sewing-machine connects two superimposed layers of material by a stitched seam and simultaneously provides, by stitching, a binding or a protective seam for each of the two edges of the material. The needle-bar 3 has a needle holder 11 provided with a needle 12 which co-operates with a shuttle to stitch the layers together, a needle 14 which co-operates with loopers 18 and 22 to form an overedge stitch at the edge of the upper layer and a needle 15 co-operating with loopers 19, 23 to do the same for the edge of the lower layer. As the two fabric layers 61, 62 are fed beneath the needles the edge 63 of the lower layer 61 is pushed down into a recess 45 in the throat plate by an oscillating arm 53 to permit the needle 14 to form an overedge stitch around the edge of the upper layer 62 while the needle 12 is joining the two layers by a seam 65 (see Fig. 2). Simultaneously a further, upper oscillating arm 54 lifts the edge 64 of the upper layer 62 to allow needle 15 to form an overedge stitch around the edge 63 of the lower layer 61. A separating plate 48 is positioned between the fabric layers above the recess 45 in the throat plate and has an aperture for the passage of the needle 14. The arms 53 and 54 are mounted on a member 50 carried on an oscillating lever 52 and are disposed to operate below and above, respectively, the level of the separator 48. Alternatively the member 50 may be mounted on a slide which is reciprocated in a direction perpendicular to the direction of fabric feed. In a modification each of the three needles co-operates with a corresponding shuttle and two edge tapes 71, 72 are folded and fed by known means, to produce the effect shown in Fig. 7. The advanced needle stitches the tape 72 and the upper fabric, the rear needle stitches tape 71 and the lower fabric, while the intermediate needle stitches the seam 65. Stifchforming, governing threads passing to needle eyes.-The unthreaded loopers 22, 23 are adjustably arranged on a support 21 mounted on an oscillating shaft 9. The needle threads 33, 34 pass together through a hole 35 in the shaft 9 and then pass through holes 36, 37 respectively in the arms of a U-shaped guide 32 extending from the shaft 9.
Patent GB-117094-A (GB)
Title: Improvements in Apparatus for Warming Tramway, Railway and other similar Vehicles.
Inventor: ROBINSON JAMES HERBERT
IPC: B61D27/00
Filed: 1917-04-03
Abstract: 117,094. Robinson, J. H. April 3, 1917. Electric radiators. -A tramcar or like vehicle is heated by the circulation of hot water in a continuous pipe circuit, the water being heated by an electric resistance inserted in the pipes, preferably near the bottom of the circuit. The electric resistance heater may be of the kind described in Specification 9522/15. The hot water circulates around a foot-warmer C in the vertical pipe B connecting the pipes A extending along the floors of the car. An extension D of the pipe B serves as an expansion and filling pipe. Reference has been directed by the Comptroller to Specification 2567/82.
Patent GB-683101-A (GB)
Title: Improvements in or relating to shoe sole straightening devices
IPC: A43D3/14
Filed: 1951-02-28
Abstract: 683,101. Shoe sole straighteners. HURXTHAL, A. O. Feb. 28, 1951, No. 4828/51. Class 17 (iii). The toe ends of shoe soles are engaged between a collar 6 on a stud 4 and the upper face 2 of a base 1 with which the stud engages. The weight of the shoe tends to straighten the sole. In the case of a shoe having no upper at the toe end the collar 6 may be turned to overhang the sole at the toe.
Patent GB-562612-A (GB)
Title: Improvements in or relating to blasting cartridges
IPC: F42B3/00
Filed: 1942-04-13
Abstract: 562,612. Blasting-cartridges. HERCULES POWDER CO. April 13, 1942, No. 4848. Convention date, Nov. 8, 1941. [Class 9 (i)] A cylindrical cartridge for blasting explosives is made by wrapping upon itself for at least two and a fraction turns a foursided sheet having two parallel sides which form the ends of the container. To facilitate bursting during tamping in the borehole, a line of weakness, e.g..a a series of perforations, is disposed at a distance from each of the other two sides greater than the circumference of the cylinder, and is disposed helically along an interposed layer of that portion of the cylinder having more than two layers. Fig. 1 shows a rhomboidal blank, having a central line of weakness 5, which may be wrapped upon itself 2<1>/3 times, whereby the line 5 will be disposed between two imperforate parts of the sheet. The line may extend to the top and bottom of the sheet. There may be several lines of weakness, e.g. when the cylinder has four or five layers constituting the walls thereof. The ends of the cylinder may be closed by crimping or by inserting paper cups therein. British Specification 545,427 and U.S.A. Specifications 1,575,894 and 1,665,834 are referred to. The Specification as open to inspection under Sect. 91 states that the line of weakness may be replaced by a continuous slit. This subjectmatter does not appear in the Specification as accepted.
Patent GB-130705-A (GB)
Title: Improvements in Projectiles of the kind Provided with a Set of Steadying Vanes.
IPC: F42B30/04
Filed: 1918-03-19
Abstract: 130,705. Soc. Anon. pour l'Exploitation des ProcÚdÚs Westinghouse- Leblanc, Aug. 23, 1917, [Convention date]. Projectiles.-Relates to pro. jectiles provided with a set of vanes and an open-ended tail. piece. According to the invention, to facilitate the manufacture of the tail, which is made with a comparatively wide bore throughout, it is formed in two parts A, B which are connected together at C by a screwed joint having an internal shoulder. The shoulder is so dimensioned that the stress tending to separate the parts of the tail when the projectile is fired is reduced to a minimum.
Patent GB-579465-A (GB)
Title: Improvements in or relating to repp fabrics
IPC: D03D23/00
Filed: 1944-03-16
Abstract: 579,465. Ribbed woven fabrics. BANYAI, Ltd., M., and BANYAI, M. March 16, 1944, No. 4905. [Class 142 (iv)] A repp fabric is produced by cross-weaving covering warps on to standing warps, each covering warp being associated with one standing warp, and closely beating-up the weft to bind the covering warps on one side only so that they form well-defined ribs on at least one face of the fabric. The covering warps bare raised and crossed over the standing warps a to form loops b<1>, b<2>. The loops are bound by the weft c which does not cross the surface of the standing warps. Fabrics may be produced which are ribbed on one side only or have ribs running warpways on one side and weftways on the other. A design may be worked with the covering warp by using a Jacquard, or the covering warp may be colour printed.
Patent GB-285462-A (GB)
Title: Improved process for working down metal residues
IPC: C22B7/00
Filed: 1928-02-16
Abstract: 285,462. Meyer, M., and Meyer, L., (trading as Huttenwerke Tempelhof A. Meyer). Feb. 17, 1927, [Convention date]. Copper sulphate; lead chloride and sulphide; alkali stannate, plumbate, and antimonate. - Metal residues containing tin, and at least two of the metals antimony, lead, and copper as oxides are treated with dilute sulphuric acid to remove the copper as sulphate, the insoluble lead sulphate also formed is mainly removed as chloride by treatment with hot chloride solutions, and the residue is melted with caustic alkali and alkali chloride to give a mixture of alkali stannate, plumbate, and antimonate. On lixiviation into water, the antimonate remains behind, and from the mixed solution of stannate and plumbate obtained, lead is precipitated as sulphide. If in the original materials the metals are not present as oxides, they are converted thereto, and in treating materials containing tin and only two of the other metals specified, the steps then unnecessary are omitted. The Specification as open to inspection under Sect. 91 (3) (a) refers to the application of the process to residues from which any metal or metals may be omitted. Also, the fusion step with caustic alkali and alkali chloride, with subsequent lixiviation for separation of antimonate, is claimed generally for separtion of antimony oxide from the oxides of other metals, and in this step a mixture of three parts by weight of caustic soda to one part by weight of common salt may advantageously be used. This subject-matter not does appear in the Specification as accepted.
Patent GB-557361-A (GB)
Title: Improved process for the preparation of photographic prints
IPC: G03C1/64
Filed: 1942-04-15
Abstract: 557,361. Photographic printing processes. HARDING, Ltd., S. C. & P., and LEUCH, W. P. April 15, 1942, No. 4965. [Class 98 (ii)] The latent image formed by exposure in a light sensitive material comprising a water-soluble silver salt with a small quantity of a watersoluble ferric salt (2.0 to 25 parts of Fe to 100 parts of Ag) other than a ferric halide in a faintly acid medium (having a pH value between 1.9 and 5.5) is developed with a reducing agent in an acid medium. The proportion of iron in the light sensitive material may amount to between 2 and 25 per cent by weight of the silver. In example 1, paper coated with an aqueous solution of silver nitrate, ferric oxalate, and tartaric acid is after drying exposed to rays from a high pressure mercury vapour lamp behind a line drawing or a photographic negative, and then developed in a developer containing sodium sulphite, metol, hydroquinone, sodium acetate, citric acid, and water. After rinsing, the print is fixed in a 1 per cent solution of sodium thiosulphate. Examples 2, 3, and 4 vary the amount of the ferric oxalate in the sensitizing solution, of the sodium acetate and citric acid in the developer, and of the tartaric acid in the sensitizing solution respectively. The amount of metol in the developer may also be varied. In example 5, paper is coated with an aqueous solution of silver nitrate, tartaric acid, and ferric ammonium citrate. Urea may be added to the sensitizing solution to increase sensitivity. The tartaric acid in the sensitizing solution may be replaced by other organic acids. The exposure may also be effected to daylight or the rays of a carbon arc lamp. Reference is made to the omission of the acid or ferric salt from the sensitizing solution.
Patent GB-769527-A (GB)
Title: Improvements in or relating to fixing devices for roofing sheets
IPC: E04D3/363
Filed: 1954-02-19
Abstract: 769,527. Roofs. COOKSON, W. Sept. 2, 1954 [Feb. 19, 1954], No. 5000/54. Class 20(4)  A roof comprises sheets 1 of metal or other light gauge material provided with locking ribs 2 having external members 6 providing internal grooves 6a into which springy brackets 16 secured to the purlins engage with snap action. Specification 769,526 is referred to
Patent GB-376840-A (GB)
Title: Improvements in electrical automatic maximum load devices
IPC: H02H9/02
Filed: 1931-11-16
Abstract: 376,840. Protective cut-out arrangements ; electromagnetic interrupters. CHAMPION, G. T., Greengates, Parry's Lane, Stoke Bishop, Bristol. Nov. 16, 1931, No. 5004. [Class 38 (v).] In an automatic electric overload indicator a solenoid is adapted to operate two electric contacts with an interval of time, the first contact introducing a resistance either in the field winding of a shunt dynamo or in the circuit of a battery &c., and the second contact de-energizing the solenoid to restore normal conditions. The device which may be mounted on a slate panel comprises an operating solenoid 53 connected across the dynamo, the armature 56 being fitted with a rod 59 which dips, into a mercury pot 52 and normally short-circuits lamps 79 in the field winding circuit. Upon excess current in the load circuit, a solenoid 43 is energized and the armature 46 closes the switch 48 to energize the solenoid 53 and the armature 56 is lifted slowly against the retarding action of a dashpot (not shown). The rod 59 then leaves the mercury in the pot 52 and so throwing the resistance of the lamps 79 into the field winding circuit lowers the generated voltage and dims the lamps in the load circuit until the armature, which is connected at its upper end to an arm 73, has risen sufficiently to cause the arm 72 to dip into the mercury pot 75 and thus short-circuit the current through the solenoid 43 and establish normal conditions. Similarly resistance may be introduced into, or a number of cells may be cut out of, the main circuit when applied for use with accumulators.
Patent GB-1498295-A (GB)
Title: Treatment of dehydration in veterinary medicine
IPC: A61K31/715
Filed: 1975-02-06
Abstract: 1498295 Dextran treatment ZDRAVLJE FABRIKA FARMACEUTSKIH I HEMIJSKIH PROIZVODA 6 Feb 1975 [20 March 1974] 5007/75 Heading A5B Dehydration in animals may be treated by interperitonial administration of an aqueous solution of dextran or a hydroxy alkyl dextran e.g. 2-hydroxyethyl-, 2-hydroxypropyl-, 2, 3-dihydroxypropyl-2-hydroxybutyl- or 2-hydroxypentyl dextran. The solution may also include sodium chloride, potassium chloride, calcium chloride, lactose or glucose.
Patent GB-539464-A (GB)
Title: Watertight watch-case
IPC: G04B37/08
Filed: 1940-03-18
Abstract: 539,464. Watch cases. PIQUEREZ, E. March 18, 1940, Nos. 5032 and 5033. Convention dates, March 30, 1939 and May 30, 1939. [Class 139] In a water - tight watch case, a spring 15 presses a false bottom 14 against a seating 12 of the case-band 10, the seating 12 being provided with a packing 13 of slightly compressible material. The spring 15 has pressed-up, integral tongues 15<SP>1</SP> and is pressed against the false bottom 14 by a snap-on true bottom 16. The glass 11 is fixed water-tight in its bezel. In a modification, Fig. 3, the spring 15 is a split annular ring snapped into an inner undercut groove 17 of the caseband. In a further modification, Fig. 5 (not shown), a spring similar to that of Figs. 1 and 2 presses the packing ring against an inner ring of the case-band instead of against a shoulder of the case-band. In yet another modification, Fig. 7 (not shown), the true bottom is screwed on to the movement ring or case-band.
Patent GB-1117841-A (GB)
Title: Method of improving the reliability of a rolling element system
IPC: F16C33/62
Filed: 1966-02-04
Abstract: 1,117,841. Bearings; gearing. NATIONAL AERONAUTICS & SPACE ADMINISTRATION. 4 Feb., 1966 [8 Feb., 1965], No. 5050/66. Headings F2A and F2Q. [Also in Division B3] A method of making a rolling-element system having elements in rolling and sliding contact wherein one or more elements in contact receive a greater number of stress cycles on each point of the surface during the operation of the system than the other elements, comprises heat treating the elements receiving the lesser number of stress cycles per point to a predetermined hardness and heat treating the elements receiving the greater number of stress cycles per point to one to two points Rockwell C hardness less than the elements in contact therewith having the lesser number of stress cycles. When making rolling-element bearings blanks of highchromium steel are fabricated into rings and heat treated to a Rockwell C hardness not exceeding 60. The rings are then ground to form inner and outer races. Bearing balls are made from high carbon chromium steel and heat treated to a hardness approximately equal to that of the races. Subsequently the inner and outer races are tempered to a Rockwell C hardness one to two points less than the rolling elements. The rolling elements and races are then ground to their final dimensions and finish and finally assembled. Alternatively the races can be brought to their lower degree of hardness subsequent to being ground and finished. In a modification the race blanks are heat treated to at least Rockwell C58 hardness and the rolling element blanks to one or two points greater hardness prior to grinding and finishing. The method is also applicable to gear trains, in which case the gears having the greater number of teeth of meshing pairs are heat treated to a Rockwell C hardness one to two points more than the smaller gears.
Patent GB-727031-A (GB)
Title: Process for the production of dibutolactam
Filed: 1952-02-27
Abstract: The invention comprises as a new compound dibutolactam having the formula <FORM:0727031/IV (b)/1> the compound being in the form of yellow crystals and having a boiling-point of 155 DEG  C. at a pressure of 4.5 mm. of mercury.  The compound may be obtained by heating butyrolactone with a solution of an alkali metal alcoholate in an organic solvent, decomposing the product with a mineral acid and reacting the resulting dibutolactone with ammonia.  It may also be obtained by reacting butyrolactone with ammonia to form pyrrolidone which is then reacted with a solution of an alkali metal alcoholate in an organic solvent, and acidifying the product, an alkali metal compound, with mineral acid.  The reaction with the alkali metal alcoholate, e.g. sodium methylate, is preferably carried out in alcoholic solution at raised temperature and the decomposition of the alkali metal compounds is preferably carried out after distilling off the alcohol.  It is advantageous to carry out the decomposition at a low temperature, e.g. at 0 DEG  C., and at a pH of about 3.  The decomposition products are extracted with an organic solvent, e.g. ether, and after distilling off the solvent the residue is brought to a pH value of about 8-9 with a dilute solution of an alkali, e.g. dilute caustic soda solution, the alkaline solution being then extracted with an organic solvent, preferably ether, and the extract again distilled.  When butyrolactone is treated with an alkali metal alcoholate the distillation residue after treatment with mineral acid consists of dibutolactone which is then reacted with ammonia, preferably at elevated temperature and pressure to yield dibutolactam.  An example of each of the two methods is given, sodium methylate being used as the alcoholate and hydrochloric acid as the mineral acid in each case.  In the first method dibutolactone is isolated from the mixture as a solid crystalline mass and is then converted to dibutolactam by reacting with ammonia at elevated pressure in an autoclave heated to 240 DEG  C.
Patent GB-632979-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02N99/00
Filed: 1945-10-05
Abstract: 632,979. Two-stroke engines ; starting ; turning- gear ; regulating. TOWNSHEND, E. F. R. Oct. 5, 1945, No. 5157/48. Divided out of 632,920. Drawings to Specification. [Classes 7 (ii), 7 (v) and 7 (vi)] A two-stroke cycle engine comprises an exhaustdriven turbo-blower for suppling supercharging air under normal running conditions, an air reservoir for storing air at high pressure, and, for acceleration at low speeds, means for supplying air from the reservoir to the engine cylinder to replace the normal supercharging air. The engine described is the same as that described in Specification 632,920. Specification 527,612 also is referred to.
Patent GB-432709-A (GB)
Title: Improvements in knitting machines
IPC: D04B13/00
Filed: 1934-02-01
Abstract: 432,709. Knitting-machines. BRITISH CELANESE, Ltd., 22, Hanover Square, London, WELCH, S. A., GUYLER, A. F., ASHBY, J. T., and BOALER, W. H., c/o British Celanese, Ltd., Spondon, near Derby. Feb. 1, 1934, No. 5161/33. Addition to 338,489, [Class 74 (ii)]. [Class 74 (ii)] The thread-guides of the machine claimed in the parent Specification are mounted in tricks cut at an angle to the radial so that, in sliding inwards, each guide leads a thread from a needle across the path of a sinker. Two sets 56, 70 of thread guides are employed, and are mounted in concentric rings 53, 66 between which both sets of warp threads pass to the needles. As shown, the guides are slidable horizontally and the warp threads pass substantially vertically to them. In the form described, the outer guides 70 remain stationary while the needles 29 and the guides 56 rotate at different speeds.
Patent GB-432919-A (GB)
Title: Improvements in and relating to electric switches for radio and like circuits
IPC: H01H19/62
Filed: 1934-02-16
Abstract: 432,919. Snap - action switches. IDEAL WERKE AKT.-GES. FUR DRAHTLOSE TELEPHONIE, 97, Grosse Leegestrasse, Hohensch÷nhausen, Berlin. Feb. 16, 1934, No. 5164. Convention date, Feb. 22, 1933. [Class 38 (v)] An electric switch for radio and like circuits has an elongated switch controlling member having four elongated plates disposed around a central axis in such a manner as to form a cross in transverse cross-section, each plate being provided with a projection and all the projections being relatively staggered to operate a number of switch contacts in succession. As shown in Figs. 1 and 2 sets of fixed and movable contact springs 9, 10 are mounted at one side of a rotary shaft 3 with operating handle 4 the shaft carrying elongated plates 1, 1<1>, 2, 2<1> formed with cam surfaces 7 for engaging the springs 10 during the rotation of the shaft and moving them successively into contact. The switch-operating plates are arranged in end elevation in the form of a cross. The switchoperating plates may be formed of insulating material such as kainite or of metal, the movable springs bearing insulating plates 12 for operation by the cams in the latter case. The complete switch-operating member may be pressed, cast or die-cast as a single unit.
Patent GB-1464751-A (GB)
Title: Apparatus for mounting an elongate appliance or tool on a  means of conveyance
IPC: A01D34/28
Filed: 1974-02-05
Abstract: 1464751 Shock absorbing vehicle-to-implement couplings F DE MEEUS D'ARGENTEUIL 5 Feb 1974 [5 Feb 1973] 05284/74 Heading A1P An agricultural implement is mounted to a vehicle such as a tractor or helicopter by a pivoted framework and shock absorbers whereby the implement can be maintained horizontal and free of any jerking forces emanating from the vehicle. In the preferred embodiment a pivoted rectangular frame 1 comprises parallel transverse bars 1A (only one shown), parallel side channels 1B and an intermediate transverse bar 1C. Horizontal plates 2A rotatably connect the bar 1C and the lower bar 1A (not shown) to respective vertical mounting pins 2 on a chassis 3 fixed to the vehicle. The pins 2 thereby afford a vertical axis for the pivoting of the frame 1 on the chassis. The frame is also connected to the chassis via shock absorbers 4 to dampen the pivoting. A rectangular, tool supporting frame 5 is pivotally connected via links 7 to a cross bar 6 which is connected via brackets 6A to a cross-bar 6B which, like a lower cross-bar 9, is slidable in the side channels 1B of the frame 1. The lower transverse bar 5B, of the frame 5 supports, e.g. a spray bar 5', and is engaged within slotted guide brackets 8 depending from cross-bar 9. If the vehicle causes the chassis 3, and hence the frame 1 to rock in a vertical plane, Fig. 2, the cross-bar and spray bar 5' remain horizontal by virtue of the slotted guide brackets. The height of the tool can be varied by winch and cable 10, 11.
Patent GB-731103-A (GB)
Title: A basket for a centrifugal separator
IPC: B04B7/18
Filed: 1953-02-26
Abstract: 731,103. Centrifugal machines. SUMIYA, S. Feb. 26, 1953 [Feb. 27, 1952; Feb. 6, 1953], No. 5424/53. Class 23. [Also in Group I] The wall 1 of a strainer separator has a plurality of holes 2 each of which houses an easily replaceable filter 3. The larger crosssection of a hole is at the inner surface of the wall. The filters may comprise cotton fibre, sponge, porcelain, or wire netting, and, as shown in Fig. 4, the filters comprise sand between perforate discs. Specification 21200/03, [Class 23], is referred to.