baber/WOPTO huggingface dataset:
Patent GB-565049-A (GB)
Title: Improvements in or relating to electric testing device
IPC: G01R19/145
Filed: 1943-07-24
Abstract: 565,049. Current detectors. RUBERT, M. P. July 24, 1943, No. 12085. [Class 37] A device for testing whether a conductor is live comprises a tool such as a screw-driver b having a handle a of synthetic resin in which is located a discharge tube d having one electrode e connected to the tool b and the other connected through a metal disc f to a filling g of a cement having a resistance of about 100,000 to 200,000 ohms. With the blade b in contact with the conductor under test, and the operator's finger on the cement filling g, the glow of the tube visible through an aperture c indicates that the conductor is live. The distribution of the glow indicates A.C. or D.C. and the polarity of the latter.
Patent GB-221476-A (GB)
Title: An improved lever operated mechanical jack
IPC: B66F1/02
Filed: 1924-05-17
Abstract: 221,476. McNamara, C. E. Sept. 5, 1923, [Convention date]. Jacks.-The gripping and lifting collar 8 is connected by a link 9 to a lever 7 pivotally mounted in a lug projecting from the side of the standard 1. During the downward stroke of the collar 8, the lifting pillar 6 is sustained by a similar collar 10 placed on top of the standard, Fig. 1. Lowering is effected by moving the collar 10 to the position shown in Fig. 2. A similar collar may be placed on the lower part of the pillar 6 in inverted position and used as a lifting-foot. The outer end of the lever 7 is shaped to receive a tyre lever.
Patent GB-1488335-A (GB)
Title: Process for the production of 3-methyl piperidine
IPC: C07D213/16
Filed: 1976-03-25
Abstract: 3-Methylpiperidine is obtained in a yield of up to 90 % if 2-methylglutaronitrile is hydrogenated under pressure in the presence of a nickel catalyst. 3-Methylpiperidine is used as a vulcanisation accelerator and additive to lubricating oils; it is further an intermediate for the preparation of nicotinic acid, which is of importance as a medicament and food additive.
Patent GB-963466-A (GB)
Title: An improved stand
Inventor: LARKING HERBERT
IPC: A47F5/01
Filed: 1962-03-29
Abstract: 963,466. Rack stands. SPENCER WIRE CO. (STEEL) Ltd. March 7, 1963 [March 29, 1962], No. 12171/62. Headings A4H and A4U. A free-standing inverted-U-shaped frame 15 of tubular metal has pairs of hooks 25 formed at the ends of rods spanning the arms of the U. Polythene covered wire baskets 11-14 are supported on the hooks 25. In another form (Figs. 5-7, not shown), hooks and feet 23 are provided on both sides of the frame 15. In this form, wire trays may be slung between spaced stands. The rods with projecting hooks 25 are welded in position on the tubular frame 15 and the completed stand is coated with a layer of polythene.
Patent GB-284199-A (GB)
Title: Process for the preparation of alkyl ethers of protocatechuic aldehyde
IPC: C07C45/28
Filed: 1927-05-06
Abstract: 284,199. Boedecker, F., (Assignee of Riedel Akt.-Ges., J. D.). Jan. 24, 1927, [Convention date]. Addition to 285,156. m- and p-Ethylprotocatechuic aldehydes are obtained by treating safrol or camphor oil with alcoholic alkalies as in the parent Specification, but ethylating the product instead of methylating it. Separation is effected as the propenyl pyrocatechin ether containing the alkyl radicle in the para position to the propenyl group is more difficultly soluble than the corresponding meta compounds, also the alkali salts and the acidyl compounds of the propenyl pyrocatechin ether ethylated in the meta position are more difficultly soluble than the para compounds and finally the m-ethylprotocatechuic aldehyde dissolves more easily in alkali carbonates than the para compounds. In examples (1) safrol is heated with methyl alcoholic potash is an autoclave, and on acidification of the aqueous alcoholic solution a mixture of m- and p-propenylpyrocatechinmonomethoxy ethers is obtained. This mixture is ethylated and saponified by dissolving in alcohol, acidifying and boiling, a product being obtained which smells like eugenol. The phenols thus obtained are dissolved in hexahydrotoluene and on cooling the p-ether crystallizes out, the acetate and benzoate being described. The m-ether is obtained bv crystallization of the sodium salt from a dilute caustic soda solution, the benzoate and acetate being described; (2) camphor oil is treated as before, a mixture of the methoxymethyl-ethylethers being obtained. This mixture is treated according to the process of the parent Specification or according to Specification 285.551, or finally according to the above described process.
Patent GB-367629-A (GB)
Title: Sharpening device for chalks crayons and the like
IPC: B43L23/08
Filed: 1931-04-24
Abstract: 367,629. Pencil &c. sharpeners. SCHWARZ, G., Konolfingen, Berne, Switzerland. April 24, 1931, No. 12204. Convention date, Jan. 22. [Class 146 (iii).] A sharpening device for chalk pencils, crayons, and the like is formed by arranging in a sleeve 1 three or more wires 7, 8, 9 which converge so as to enclose a cone. The wires have at least one sharp working edge and the cross-bar 2, in which the convergent ends of the wires are inserted, divides the hollow space of the sleeve 1 into two chambers, the smaller of which is fitted with a detachable cover 10 and serves to collect the shavings &c. The device may be worked mechanically by mounting the sleeve upon a rotatable shaft.
Patent GB-661314-A (GB)
Title: A new or improved hand tool for use in connection with articulated chain
IPC: B25B27/22
Filed: 1949-05-07
Abstract: 661,314. Punching-pliers. KEMP, C.C. May 22, 1950 [May 7, 1949], No. 12206/49. Class 61 (ii). Pliers for removing rivets from articulated chain are provided with detachable jaw plates, one plate 14 having upstanding prongs 141 adapted to engage in the gaps between adjacent chain rollers 151 and the other plate 18 having inwardly directed punches 181 spaced apart at the same distance as the pivot rivets 153 of the chain. The jaw plates are attached by counter-sunk screw bolts and nuts 17, 20 to eyes in toggle levers 11 comprising looped lengths of strip metal which interlace at the enlarged pivot portion 112. The jaws are urged into open position by a spring 21. The jaw plates may be attached to simple lever action pliers. Specification 638,262 is referred to.
Patent GB-973735-A (GB)
Title: Improvements in or relating to a heating element
IPC: H05B3/58
Filed: 1961-04-05
Abstract: 973,735. Electric space heaters. AMERICAN RADIATION & STANDARD SANITARY CORPORATION. April 5, 1961 [April 7, 1960], No. 12224/61. Heading H5H. A resistance element, suitable for use as a skirting board heater, is formed by a strip of resistance material 1 having contacts 4 and 5 extending lengthwise along the strip, the element being corrugated, and readily severable, in a direction transverse to the length of the contacts. The contacts may be either spaced from, or flush with, the edge of the resistance material, which may be coated with an electrical insulant.
Patent GB-1079090-A (GB)
Title: Grip-finger for labelling machine
IPC: B65C9/36
Filed: 1966-03-21
Abstract: 1,079,090. Grip-finger for labelling machine. GEO. J. MEYER MANUFACTURING CO. March 21, 1966 [Sept. 20, 1965], No. 12244/66. Heading B8F. A grip finger assembly comprises a suction pad for holding a label to which force is applied to press the label against a gum-coated picker, and to which positive force, as contrasted with spring pressure, is applied whilst it is in the label-affixing position. The picker takes the label from a magazine to the grip finger assembly while its blades are closed, and, when the suction pad presses the label against the picker its blades open so as to allow the pad to pass between them, whilst coating the label surface with gum. The assembly may be used to fix labels to bottles moving along a conveyer.
Patent GB-981343-A (GB)
Title: Improvements in or relating to the heating of travelling thread or tape-shaped products and apparatus therefor
IPC: D02J13/00
Filed: 1962-03-30
Abstract: 981,343. Rollers; securing rollers on shafts. ONDERZOEKINGSINSTITUUT RESEARCH N.V. March 30, 1962 [April 7, 1961], No. 12252/62. Heading F2U. [Also in Division B5] A heatable thread forwarding roller for forwarding and heating a thread comprises a metal roller and driving and heating means therefor, the heating means comprising, at least one magnet the lines of force of which are cut by a part of the roller. The magnet or magnets may be located within the roller in such a manner that there is relative movement between the roller and the magnet or magnets, the latter being either stationary or mounted on a frame which rotates at a speed or in a sense opposite to that of the roller. The clearance between the magnet poles and the metal part of the roller may be adjustable. As shown in Figs. 1 and 2, the roller 1 having a flange 8 is fixedly mounted on the tapered end 4 of the shaft 2 of a synchronous electric motor 3 by means of a nut 5 on a screw-threaded portion of the shaft. A thin layer of a solid heatinsulating material 7 is interposed between the conical surfaces of the tapered shaft end 4 and the correspondingly tapered bore of the hub 6 of the roller 1. Four permanent magnets 13 are cemented in longitudinal grooves in the thickened portion 12 of a cylinder 10 concentric with the shaft 2 and secured to the stationary easing of the electric motor 3 by screws 11. A sleeve 14 of electrolytically pure copper, having a thickness of 2 mm. and separated from the magnet poles by a clearance of 0À2 mm., is fixed on the inner surface of the roller concentric with the shaft 2. The roller may be provided with electromagnets instead of permanent magnets, and the coils of these electromagnets may be connected to an electric current supply the strength of which is adjustable.
Patent GB-170614-A (GB)
Title: Improvements relating to electrodes for electric batteries and accumulators
IPC: H01M50/531
Filed: 1920-05-03
Abstract: 170,614. Pouchain, A. May 3, 1920. Connections. - Connection is made to a soluble electrode such as a plate of zinc 1 by means of a wire or band 5 which is wound round the electrodes and carries a terminal 4. The wire 5 is made of, or covered with, a metal which is not attacked by the electrolyte, such as platinum, gold, silver, or cadmium, and it may make contact throughout its length with the plate 1 or at a number of points only.
Patent GB-550460-A (GB)
Title: Improvements in or relating to means for locking lathe collets or the like
IPC: B23B31/20
Filed: 1941-09-23
Abstract: 550,460. Chucks. FACKS, W. Sept..23, 1941, No. 12287. [Class 83 (iii)] Bevel-closing, hollow-spindle chucks have the collet drawn into its seating by a rod or tube 32 moved by a sleeve 3 acting through a resilient washer 35 and cup 36 on lock nuts 34 on the rod. The sleeve slides in a sleeve 1 secured to the lathe spindle 2 and having a screw 5 engaging a slot 6 to prevent relative rotation of the sleeves and a pin or screw 15 engaging a recess 16 to limit the amount of sliding movement. The sleeves are cammed apart by a ring of balls 10 controlled by a sleeve 4 with cylindrical surfaces 11, 13 connected by a conical surface 14. The sleeve 4 is operated by a yoke 21 carried by a rack bar sliding in a housing secured at 26 to one of the lathe-spindle bearing, caps. The rack is operated by a cross shaft 27 fitted with a hand crank.
Patent GB-1044406-A (GB)
Title: 7-acylaminocephalosporanic acids and salts thereof
IPC: F21V7/18
Filed: 1964-03-24
Abstract: The invention relates to antibacterial 7-acylamino -cephalosporanic acids of formula <FORM:1044406/C2/1> in which A is C1- 6 alkyl, substituted by in which A is C1- 6 alkyl, substituted by C1- 6 alkoxy, halogen C1- 6 alkoxy, halogen cycloalkyl or by one or more halogen atoms; and a salt thereof.  Typical compounds are 7-[N1-(b -chloroethyl) - ureido] - cephalosporanic acid; 7 - [N1 - (11 - methyl - 21 - chloropropyl) - ureido]-cephalosporanic acid; 7-[N1-(g -chloropropyl)-ureido] -cephalosporanic acid; 7 - [N1 - (21-chloropropyl) - ureido] - cephalosporanic acid; 7 - [N1 - (11:11 - dimethyl - 21 - chloroethyl)-ureido]-cephalosporanic acid; and 7-[N1-(21:31-dichloropropyl) -ureido] - cephalosporanic acid. Salts may be alkali metal, alkaline earth metal, and tertiary organic nitrogen base salts, e.g. alkoxy, halogen C1- 6 alkoxy, halogen cycloalkyl or by one or more halogen atoms; and a salt thereof. Typical compounds are 7-[N1-(b -chloroethyl) - ureido] - cephalosporanic acid; 7 - [N1 - (11 - methyl - 21 - chloropropyl) - ureido]-cephalosporanic acid; 7 - [N1 - (21-chloropropyl) - ureido] - cephalosporanic acid; 7 - [N1 - (11:11 - dimethyl - 21 acid; and 7-[N1-(21:31-dichloropropyl) - ureido] - cephalosporanic acid. - chloroethyl)-ureido]-cephalosporanic Salts may be alkali metal, alkaline earth metal, and tertiary organic nitrogen base salts, e.g. triethylamine and N-ethylpiperidine salt.  The compounds are prepared by reacting an isocyanate of formula A-N=C=O in which A has the meaning given above, with a quaternary salt of 7-amino-cephalosporanic acid with a strong organic nitrogeneous base, e.g. triethylamine.  2:2:3:3 - Tetrafluorocyclobutyl methyl isocyanate is prepared by treating 2:2:3:3-tetrafluorocyclobutylamine hydrochloride with phosgene in a solvent.  The 7-acylaminocephalosporanic acids and their physiologically tolerable salts in admixture with an adjuvant may be used as tablets, dragees, capsules, solutions, suspensions, emulsions, ointments and injections.
Patent GB-731799-A (GB)
Title: A method of, and apparatus for, annealing coils of metal strip or like material
Inventor: HOLDEN JOHN WILLIAM
IPC: C21D9/667
Filed: 1951-05-26
Abstract: 731,799. Annealing. SALEM ENGINEERING CO., Ltd. May 21, 1952 [May 26, 1951], No. 12393/51. Class 72. [Also in Group XII] A method of annealing metal strip in coil form comprises covering a plurality of stacks of coils with covers, the interior of each of which communicates through a different branch pipe with atmosphere gas supply and return manifolds which, in turn, are connected to the outlet and inlet of a circulating fan located in a position remote from the covers. As shown, a fan 14 discharges through a manifold 11 and valved branch pipes 12 to the interiors of covers 27 by way of pipes 7 and distributors 5. The gas returns through pipes 10, arranged in the centres of the stacks 26, to a return manifold 8 and the suction side of the fan 14 which is situated preferably at ground level and at a distance from a cover 28 enclosing all the covers 26 and provided with burners 29 for heating the coils. A heat exchanger 11a may be arranged in the return manifold and, by means of dampers 17, 18, and 19 may or may not be included in the circulating system. Additional atmosphere gas may be supplied through a pipe 23 having an automatic valve 24 controlled by pressure in the supply manifold.
Patent GB-762699-A (GB)
Title: Improvements in or relating to magnetic reproducing apparatus
Inventor: SPENCER ROLF EDMUND
IPC: G11B20/22
Filed: 1954-04-29
Abstract: 762,699. Magnetic recording and reproducing apparatus. ELECTRIC & MUSICAL INDUSTRIES, Ltd. April 12, 1955 [April 29, 1954], No. 12405/54. Class 40 (2). In a magnetic recording and reproducing apparatus in which the phase difference between a recorded constant reference frequency and a recorded frequency of similar value varying in phase with the reference frequency in accordance with the signal, the effect of spurious phase shifts, such as would be caused by misalignment of the transducers, is reduced by duplicating either the track containing the reference frequency or the track carrying the modulated frequency, and arranging the duplicated track symmetrically about the other. Fig. 2 shows duplicated modulated tracks I arranged either side of a central reference frequency track R, while the converse is shown in Fig. 3. If during recording and reproducing there is an angular variation 6 from the normal relationship of the transducers to the record strip, phase shifts of opposite sign will occur in the outer transducers and will be cancelled out. The strip could carry more than one pair of signal tracks disposed symmetrically about a central reference track as shown in Fig. 4.
Patent GB-713178-A (GB)
Title: Improvements in and relating to salicylic acid compounds
Filed: 1951-05-28
Abstract: The invention comprises an aryl ester of 2-hydroxy-4-aminobenzoic acid in which the aryl group comprises a benzene ring carrying a fused-on ring or having at least one nuclear substituent which is alkyl, nitro or amino.  Such esters are obtained by reducing the corresponding aryl ester of 2-hydroxy-4-nitrobenzoic acid, the amino-aryl ester being produced from a nitro-substituted aryl ester. The starting compounds may be obtained by condensing 2 - hydroxy - 4 - nitrobenzene with an alkyl-substituted phenol, a naphthol or a nitro-phenol. Nitro-aryl esters may also be obtained by condensing a 2-acyloxy-4-nitro-benzoic acid halide with a nitro-phenol and then hydrolysing off the acyl group.  Reduction is preferably effected by catalytic hydrogenation.  Zinc dust may also be used. In examples: (1) b  - naphthyl - 2 - hydroxy - 4 - nitrobenzoate is prepared by reacting 2-hydroxy-4-nitrobenzoic acid and b -naphthol in the presence of phosphorous oxychloride.  The o-, m-, and p-cresyl esters are prepared similarly.  The b -naphthyl ester is hydrogenated with Adams platinum oxide catalyst to b -naphthyl-2-hydroxy-4-aminobenzoate; (2) the same product is also obtained by reducing b -naphthyl-2 - hydroxy - 4 - nitrobenzoate with zinc dust and ammonium chloride solution.  By either method of reduction the cresyl esters prepared in (1) are reduced to the o-, m- and p-cresyl esters of 2-hydroxy-4-aminobenzoic acid; (3) 31 - nitrophenyl - 2 - hydroxy - 4 - nitrobenzoate (prepared by condensing 2-hydroxy-4-nitrobenzoic acid and 3-nitrophenol) is reduced with zinc dust and ammonium hydrochloride to 31-aminophenyl - 2 - hydroxy - 4 - aminobenzoate; (4) 41 - nitrophenyl - 2 - hydroxy - 4 - nitrobenzoate (obtained by condensing 2-hydroxy-4-nitrobenzoic acid and 4-nitrophenol as in (1)) is hydrogenated catalytically to 41-aminophenyl - 2 - hydroxy - 4 - aminobenzoate; (5) 2 - acetoxy - 4 - nitrobenzoyl chloride (from 2-acetoxy - 4 - nitrobenzoic acid and thionyl chloride) is reacted with 2-nitrophenol and a pyridine catalyst to give 21-nitrophenyl-2-acetoxy-4-nitrobenzoate which is hydrolysed to 21-nitrophenyl - 2 - hydroxy - 4 - nitrobenzoate.  This compound on reduction gives 21-aminophenyl - 2 - hydroxy - 4 - aminobenzoate.  The Provisional Specification includes also the preparation of phenyl 2-hydroxy-4-nitro-benzoate and a process for its reduction to phenyl-2-hydroxy-4-amino-benzoate.
Patent GB-1213034-A (GB)
Title: Improvements in and relating to servo operated valves
Inventor: UTTON NORMAN
IPC: F15B13/043
Filed: 1968-03-14
Abstract: 1,213,034. Servovalves. AUTOMOTIVE PRODUCTS CO. Ltd. June 13, 1969 [March 14, 1968], No.12523/68. Heading G3P. A two-stage servovalve has a first stage cantilevered flapper 73 pivoted by the armature 76 of torque motor 49 so as to variably restrict by means of its free end 53 a pair of nozzles (51, 52) mounted side-by-side at 62 and connected to the end chambers 68, 69 of second stage spool 45. The latter has supply chambers 58, 59, motor chambers 54, 55 and exhaust chamber 61, and its movement is fed back to the flapper by spring 78. In a modification, the flapper is formed by the armature whose coned free end controls the nozzles. A sleeve supports the armature and seals the torque motor.
Patent GB-1325135-A (GB)
Title: Packaging machine
IPC: B65B9/02
Filed: 1972-03-17
Abstract: 1325135 Packaging machine A BALLESTRAZZI G TOSARELLI and L TASSI [trading as SITMA Snc SOC ITALIANA MACCHINE AUTOMATICHE DI TASSI BALLESTRAZZI E TOSARELLI] 17 March 1972 [17 March 1971] 12566/72 Addition to 1319166 Heading B8C A machine as described in the Specification 1,319,166 is modified in that, in order to prevent excess stretching of the cradle-shaped packaging material 37 when the goods being packaged are relatively heavy, two jaws of grasping elements, 42, 43 are respectively pivoted to the blades 29, 40 and counterblades 39, 41 of the welding and cutting unit 28 by means of parallelogram lever arrangements 44, 45 and have their confronting faces, which are preferably made of resilient material such as rubber, projecting from the blades 29, 40 and counterblades 39, 41 when these latter blades are in their inoperative positions. As shown in Fig. 2 the jaws 42, 43 grasp the article 27 of goods as wrapped by the material 16 before the completion of the forward stroke of the blades 29, 40 the slight upward movement of the jaws 42, 43 and packaged article 27, as the jaws finally come together relieving the tension on the packing material before the latter is cut. In order to provide better separation of each packaged article from the remaining packaging material when packaging relatively light-weight goods, the machine is equipped with two inverters 46, 47 which are adapted to reverse the direction of rotation of the two drag-rollers 18, 21 which unwrap the packaging material 37 from the feeding drums, not shown. The direction of the drag-rollers 18, 21 is automatically reversed during the initial portion of the return stroke of the blades 29, 40 and 39, 41 during which short time the packaging is still gripped by the jaws 42, 43.
Patent GB-1299996-A (GB)
Title: Polychroic film
IPC: B32B37/00
Filed: 1970-03-16
Abstract: 1299996 Laminates having opaque longitudinal louvres MINNESOTA MINING & MFG CO 16 March 1970 [17 March 1969] 12585/70 Addition to 1238915 Headings B5A and B5N A transparent to translucent web has disposed therein, in a direction substantially normal to the web plane, differentially light transmissive parallel louvres of a thickness relatively small compared with the space between them, spaced so as to provide the web with a restricted optical aperture for light passing through the web and being colourod, whereby a varicoloured appearance is imparted to the web when viewed from different angles, the web being overlaid on at least one surface by a transparent coloured layer. A further transparent and/or coloured overlayer may be provided, the latter optionally being discontinuous. The web may be made by forming and skiving a laminated cylinder, as described in the parent Specification followed by application of the overlayer(s). In examples the web is made of cellulose acetate-butyrate or polyvinyl butyral and the overlayers are polyester film, one of which is coated with a coloured cellulose acetate-butyrate layer. The louvre elements may be coloured by coating, using acrylate based compositions and a backsize of poly(octadecylcarbamate) to promote adhesion of the coloured layer. Conventional dyes or pigments are used. An embossed product may be obtained by vacuum forming the web against a sheet of expanded metal.