baber/WOPTO huggingface dataset:
Patent GB-317296-A (GB)
Filed: 1929-08-12
Abstract: 317,296. Schering-Kahlbaum Akt.- Ges. Aug. 10, 1928, [Convention date]. Aminobenzoic acid alkamine esters of the formula. (in which X indicates an alkyl group, R1 signifies a divalent alkylene residue, and R2, R3 indicate alkyl residues or joint members of a nitrogencontaining heterocyclic ring) are prepared in known manner from the corresponding nitro- or amino-benzoic acids. The products possess enhanced anµsthetic properties. According to the examples, (1) 4-nitro-3-methoxybenzoic acid diethylaminoethanol ester is prepared by interaction of 4-nitro-3-methoxybenzoyl chloride with diethylaminoethanol, or first with ethylene chlorhydrin and then with diethylamine, and reduced to the corresponding amino compound; replace ment of the diethylamine by piperidine yields 4- nitro- and then 4-amino-3-methoxybenzoic acid piperidinoethanol ester; (2) 4-ethoxy-3-nitrobenzoyl chloride and diethylaminoethanol react to give 4-ethoxy-3-nitrobenzoic acid diethylaminoethanol ester, which yields on reduction the corresponding aminobenzoic acid ester; in the same way 4-isoamyloxy-3-aminobenzoic acid diethylaminoethanol ester is obtained from 4-isoamyloxy- 3.nitrobenzoyl chloride by treatment with diethylaminoethanol, followed bv reduction; (3) 3- amino-4-methoxybenzoic acid diethylaminoethanol ester is prepared by interaction of 3-amino-4- methoxybenzoic acid diethylaminoethanol ester is prepared by interaction of 3-amino-4-methoxybenzoic acid or its methyl ester with diethylaminoethanol, or by treatment of silver 3-amino- 4-methoxybenzoate with diethylaminoethyl bromide. The Specificabion as open to inspection under Sect. 91 (3) (a) also refers to the preparation of aminobenzoic acid alkamine esters of the above formula in which the three hydrogens of the benzene nucleus are replaced bv any suitable univalent substituents such as halogen, alkyl and oxyalkyl, X represents any organic radicle such as alkylene, cyclic alkyl, aryl, alkaryl or derivatives thereof, and R2, R3 indicate an unsaturated alkyl residue. This subject-matter does not appear in the Specification as accepted. Carboxylic acid chlorides.-4-nitro-3-methoxybenzoyl chloride, 4-ethoxy-3-nitrobenzoyl chloride and 4-isoamyloxy-3-nitrobenzoyl chloride are prepared by treating the corresponding acids with thionyl chloride. Nitro-alkoxy-carboxylic acids. - 4-Ethoxy-3- nitrobenzoic acid is obtained by alkaline saponification of the ethyl ester. 4-Isoamyloxy-3-nitrobenzoic acid is prepared by saponifying the ethyl ester, which is itself obtained by treating the ethyl ester of 3-nitro-4-hydroxybenzoic acid with silver nitrate, alkali and isoamyl iodide.
Patent GB-868816-A (GB)
Title: Improvements in or relating to machine tool feed apparatus
IPC: B23B47/22
Filed: 1958-07-31
Abstract: 868,816. Grinding. BALDWIN INSTRUMENT CO. Ltd., and HAY, C. H. Oct. 8, 1959 [July 31, 1958], No. 24691/58. Class 60.[Also in Group XXII] Machine tool feed apparatus comprises a piston 26 to carry the tool 16 which may be a grinding wheel, a foldable cup-shaped seal 30 connecting the piston and its cylinder and constituting a wall of a chamber 37 to receive fluid pressure for feeding the tool and means 34 for returning the tool when the pressure is released. When a valve 39 is moved to admit compressed air through a passage 41 to the chamber, the piston 26, together with an enlargement 25, a rod 18, a forward piston 14 and the tool, is fed forwardly and oil in the rearward part of a chamber 43 is pushed through passages 24 to the forward part of the chamber 43 formed by another seal 21. As the piston 26 moves forwardly, a perforated nut 29 first admits air through a bore 35 to a pneumatic motor driving the tool, and then the enlargement 25 enters a cylinder 33. Oil trapped in the cylinder can escape only through passages 32 thus controlling the feed speed. At the end of the stroke, nuts 42 engage the valve 39 to cut off the air and allow the spring 34 to return the tool. At the initial position, the nut 29 moves the valve back to its operative position. In a modification, the feed rate is controlled by a set-screw controlling escape of oil from a passage 32.
Patent GB-318150-A (GB)
Title: Toy slide rule
IPC: G09B19/02
Filed: 1929-08-13
Abstract: 318,150. Bourgeois, F. J. Aug. 28, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Adding and subtracting apparatus. - A device for use by children consists of a slide displaceable relatively to a guide. Upon the guide are ten equal dimensions numbered from 1 to 10, and upon the slide are ten corresponding equal divisions numbered from 10 to 1, the arrangement being such that any division on the slide can be brought opposite to any division on the guide. At the rear of the guide is an aperture through which can be seen a scale inscribed on the rear of the slide, this scale-being such that it indicates the sum of each pair of figures opposite each other on the upper part of the device. The numbers in the divisions may be accompanied by representations of various objects. It is stated that the device may be arranged to effect subtractions.
Patent GB-1307489-A (GB)
Title: 1-hydroxy-2-1,1-difluoroalkyl-1-h-imidazo 4,5-beta pyridine compounds and ethers and esters and salts thereof
IPC: C07D213/75
Filed: 1971-04-19
Abstract: 1307489 Imidazopyridines ELI LILLY & CO 19 April 1971 [20 March 1970 24 June 1970 21 Dec 1970] 24692/71 Heading C2C [Also in Division A5] Imidazopyridines of formula in which R<SP>1</SP> is hydrogen, chlorine, fluorine, C 1-6  perfluoroalkyl or a group -(CHZ) n CH 2 Z, in which each Z is hydrogen or halogen and n is 0 or 1, R<SP>2</SP> is halogen, nitro, -CF 3 , -CF 2 Cl, -CF 2 H or C 1-4 alkyl-sulphonyl, and R<SP>3</SP> is hydrogen, including salts of such hydroxy compounds with alkali or alkaline earth metals or amines, or one of numerous specified etherifying groups, those defined including groups forming classes of carbonates, thiocarbonates, carbamates, thiocarbamates and sulphonic esters, are prepared by acylating a 5-substituted- 3-nitro-2-amino-pyridine to introduce the acylating group R<SP>1</SP>CF 2 CO-, reducing the 5-substituted - 3 - " nitro - 2 - acylamino - pyridine formed, with simultaneous cyclization, to give a product wherein R 3  is hydrogen, followed, if desired, by (a) etherification or esterification by reaction with a compound R<SP>3</SP>-Hal, where Hal is halogen, (b) etherification by reaction with an olefinic compound or an alkyne, (c)-formation of a carbamate by reaction with an isocyanate, or (d) salification. The products are herbicides. 5 - Alkylsulphonyl - 3 - nitro - 2 - aminopyridines are prepared by reaction of 5-chloro-2- nitro-pyridine with a sodium alkanethiolate to give a 5-alkylthio-2-nitro-pyridine, oxidizing this with hydrogen peroxide to give a 5-alkylsulphonyl-2-nitro-pyridine, hydrogenating this to give a 5-alkylsulphonyl-2-amino-pyridine, reacting this with concentrated sulphuric acid and fuming nitric acid to give a 5-alkylsulphonyl- 3-nitro-2-hydroxy-pyridine, reacting this with thionyl chloride to give a 5-alkylsulphonyl-3- nitro-2-chloro-pyridine, and reacting this with ammonium hydroxide.
Patent GB-1499640-A (GB)
Title: Slant axis rotary fluid-machines
IPC: F01C9/00
Filed: 1976-06-15
Abstract: 1499640 Rotary positive displacement device CATERPILLAR TRACTOR CO 15 June 1976 [23 Oct 1975] 24730/76 Heading F1F In a slant axis mechanism, such as a pump, engine or compressor, comprising a housing 10, Fig. 1 a shaft 22 supported by journal bearings 20 and a rotor 32 supported by journal bearings 30 and thrust bearings 28 on the shaft 22, the rotor comprises a hub having a part spherical surface upon which is formed raised bearing areas 60 Fig. 1 and 2 which slidingly contact a spherical surface 16 of the housing 10. The raised bearing areas 60 may be integral with the rotor hub or formed by securing an overlay of bearing material such as bronze on the hub. The bearing areas 60 are preferably disposed between and spaced apart from compression seals 52 and oil seals 56 and the load on the bearing areas may be varied by altering the position of the shaft 22 for which reason the bearings 20 may be eccentrically mounted in a bearing cage 76 Fig. 5 ecccentrically mounted in a further bearing cage 70. The rotor may be of steel or aluminium and in the latter case the housing may be of steel. An internal ring gear 42 meshes with a timing gear 44 and piston seals 48, peripheral seals 46 and apex seals 50 are provided. The end of the shaft 22 is supported by thrust bearings 36.
Patent GB-1537099-A (GB)
Title: X-ray fluorescence device
IPC: G01N23/223
Filed: 1976-06-15
Abstract: 1537099 Electron beam apparatus; electrode materials UNITED SCIENTIFIC CORP 15 June 1976 24760/76 Heading H1D [Also in Division H5] An electron column instrument with an electron beam in vacuum is converted for X-ray fluorescence analysis by inserting in the beam a target foil 26 which emits primary monochromatic fluorescent X-rays; these emerging from either the front or rear of the foil impinge on the sample within the same vacuum chamber to generate secondary fluorescent X-rays characteristic of the sample material, detected within the same vacuum chamber. A W collimator 28, to absorb bremsstrahlung, comprising a hollow cylinder with a small aperture in its base, carrying the target foil, e.g. of pure Mo, Cu, W, Ag &c., is mounted in a recess in frame 44, rotatable on energy-dispersive X-ray spectrometer end cap 40. The frame 44 is insulated from cap 40 and is separately grounded. On rotating to bring the foil into the electron beam (coming from the top in the figure) primary X-rays emerge from the rear to excite in sample 34 on tiltable holder 35 secondary fluorescent X-rays which are received by detector 38. A filter may be inserted between collimator 28 and sample 34 to improve monochromaticity. In alternative embodiments primary X-rays from the front of the foil are used (Fig. 9, not shown), or the foil is plated directly on the sample (Fig. 10, not shown), in which case secondary fluorescent X-rays from either the front or back of the sample may be detected. Alternative target foils may be carried on a rotatable holder equipped with multiple collimators which can be aligned with the beam (Fig. 11, not shown).
Patent GB-535177-A (GB)
Title: Improvements in or relating to gratings and covers for drains
IPC: E03F5/06
Filed: 1939-08-29
Abstract: 535,177. Covers and gratings for drains &c. DUDLEY & DOWELL, Ltd., and DUDLEY, E. R. Aug. 29; 1939, No. 24761. [Class 107] Covers and gratings for aerodrome, street, and like drains and channels, whether continuous or of manhole form, have pyramidal projections on their edges which interengage with similar projections on the frames in which such covers are seated. The Figure shows a grating element 5 and two associated frame sections 12. Pyramidal teeth 7 are formed in the sloping sides of the grating, which co-act with similarly formed teeth 24 on the seating surfaces of the frame elements. The frame may be the sectional one described in Specification 535,209, or it may be of other shape or form.
Patent GB-658467-A (GB)
Title: Improvements relating to the production of preparations of penicillin salts
IPC: C07D499/24
Filed: 1949-09-27
Abstract: Preparations of penicillin salts difficulty soluble in water, which preparations contain water, or in which the penicillin salt in the course of production comes into contact with water, are stabilized by dissolving in the aqueous phase the cation of the penicillin salt so that there is present an excess of the cation of the penicillin salt over and above that combined in the penicillin salt.  Such salts are procaine penicillin and aluminium penicillin.  The aqueous solution may contain other substances such as hydrophyllic colloids, e.g. carboxymethyl cellulose, carboxymethyl starch, alkali metal salts of alginic acid and pectins and amylopectin, alkali metal salts, e.g. sodium chloride, and preservatives, e.g. methyl p-hydroxybenzoate. An example is given of a procaine penicillin injection in which the said salt is suspended in an aqueous solution of procaine hydrochloride, sodium carboxymethyl cellulose, sodium chloride and methyl p-hydroxybenzoate.ALSO:Preparations of penicillin salts difficultly soluble in water, which preparations contain water, or in which the penicillin salt in the course of production comes into contact with water, are characterized in that to the aqueous phase is added the cation of the penicillin salt so that there is present an excess of the cation of the penicillin salt over and above that combined in the penicillin salt.  Such salts are procaine penicillin and aluminium penicillin.  The aqueous solution may contain other substances such as hydrophillic colloids, e.g. carboxymethyl cellulose carboxymethyl starch alkali metal salts of alginic acid and pectins and amylopectin, alkali metal salts, e.g. sodium chloride and preserving agents, e.g. methyl p-hydroxybenzoate.  An example is given of a procaine penicillin injection in which the said salt is suspended in an aqueous solution of procaine hydrochloride, sodium carboxymethyl cellulose, sodium chloride and methyl p-hydroxybenzoate.  The preparations may be water-containing ointments, injections and lozenges.
Patent GB-1380891-A (GB)
Title: Carcass chilling process
IPC: A23B4/08
Filed: 1973-05-24
Abstract: 1380891 Meat carcass treatment SWIFT & CO 24 May 1973 24900/73 Heading A2D A method of chilling carcass meat to reduce the shrinkage loss attributable to the moisture evaporation from freshly killed animals so as to maintain the freshness and bloom of the meat and reduce the bacteria count thereof comprises spraying the carcass with an antibacterial solution containing chlorine in a chilling chamber sufficiently to reduce the bacteria count but not to affect the soleability of the carcass and thereafter intermittently spraying the carcass over a period of time less than normally required during the chilling period, and removing the carcass from the chilling chamber. The chlorine spray solution may contain 50 to 200 ppm of chlorine. The solution may be applied at 20-40 mins intervals for a spray interval of 40-110 secs.
Patent GB-1471696-A (GB)
Title: Device for manufacturing rows of slide fastener elements out of plastics monofilament
IPC: B29D5/04
Filed: 1974-06-06
Abstract: 1471696 Sliding clasp fastener manufacture OPTI PATENT-FORSCHUNGS-UND-FABRIKATIONS AG 6 June 1974 [9 June 1973] 25092/74 Addition to 1364543 Heading E2S A device, for manufacturing a row of slide fastener coupling elements from plastics monofilament 13 each coupling element having a stamped coupling head 5 and two shanks 6 with the shanks of adjacent coupling elements being interconnected by interconnecting portions 7, comprises a forming element 1 having spaced teeth 2 and which, in use, is driven continuously, and a monofilament laying mechanism which has a pressing element 10a with a curved guide track 11 extending towards the spaced teeth 2 of the forming element, and a conveyor element 12a which is movable along a path corresponding to the curvature of the guide track for conveying and guiding the monofilament between the guide track 11 and the conveyor 12a and onto the forming element 1, the conveyor element having at least one stamping cam 14 and the conveyor element and the pressing element 12a being drivable so as to coact to provide a stamping effect for stamping the coupling heads on the monofilament, the stamping cam operating to remain in engagement with the monofilament after the formation of each coupling head so as to clamp against the coupling head, and then being movable along said guide track to convey the monofilament and form it into the row of fastener coupling elements on the forming element with the shanks of each coupling element lying one above the other and between teeth 2 of the forming element and the interconnecting portions 7 each engaging one of said teeth. The laying mechanism described and illustrated is of the same construction as that disclosed in the first embodiment of the main specification however, in the present device, the forming element 1 is driven continuously and in synchronism with step-by-step feed of the laying mechanism 3. In an alternative arrangement in which each fastener element of each row is formed simultaneously with a fastener element of the other row the laying mechanisms are located in staggered relationship with regard to the direction of movement of the forming element. The forming strip 1 may be replaced by a forming wheel.
Patent GB-282008-A (GB)
Title: Sparking plug
IPC: H01T13/46
Filed: 1927-09-23
Abstract: 282,008. Allenspach, C. V. Sept. 23, 1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 9, 1927]. Sparking-plugs. - A series discharge is produced between the sharp edge 13 of the casing, a cup-shaped member 11 on the central conductor 10, and a disc 12 insulated from both the casing and central conductor. Scouring of the terminals is promoted by forming holes 16 in the cup 11. The edges of the terminals may be non-circular.
Patent GB-335689-A (GB)
Title: Improvements in and relating to wood working machinery
IPC: B27F5/12
Filed: 1929-08-20
Abstract: 335,689. Smith, W. H. Aug. 20, 1929. Mortising.-A machine for cutting hinge recesses, &c. in door members has a vertically moving tool carried by the bracket S<6> for edge cutting, the recesses and a horizontally moving mortising chisel C. These are reciprocated by a cam disc A driven by the motor M through gearing. The machine is started by the hand lever F<1> or foot lever F'which engage a friction clutch on the motor shaft. After one revolution of wheel A an arm, entering the notch N<1> declutches the motor and applies a brake. The work is supported on the bracket J which may be fed upwards either by the hand wheel L<1> or by a pawl device carried by the crank disc P<2> and engaging the edge L<2> of the wheel L<1>. The work may be positioned by the rods R<2>. The edge cutting tool S comprises 3 blades K, K<1>, K<2> secured to a base plate, the space between them being occupied by a spring-pressed plate to remove the wood chips after cutting. Specification 316,766 is referred to.
Patent GB-882499-A (GB)
Title: Improvements in and relating to sun visors
IPC: B60J3/02
Filed: 1957-08-12
Abstract: 882,499. Sun visors. STEELE, C. C. D. Aug. 11, 1958 [Aug. 12, 1957], No. 25357/57. Class 103(2). A vehicle sun visor of wholly or partly opaque material comprises a main shield 1 adapted to extend across the width of a windscreen and carried by brackets 4 whereby it may be folded into an out-of-use position, and auxiliary shields 6 hinged at 5 to the ends of the shield 1, the shields 6 being foldable against the shield 1 or into positions at right angles thereto, in which they abut stop brackets 7. The brackets 7 on the ends of the shield 1 are provided with guides 7a in which are slidable bars 8, having crooked top ends 8b engageable over the edges of the shields 6, and finger pieces 8a, whereby the shields 6 can be retained in their outswung positions.
Patent GB-923465-A (GB)
Title: A motion-transmitting device
IPC: F16H37/12
Filed: 1961-07-13
Abstract: 923,465. Linkwork; pulleys. ANDERSON CO. July 13, 1961 [Aug. 25, 1960], No. 25378/61. Classes 80 (1) and 80 (3). [Also in Group XXIII] Mechanism for converting reciprocating motion to oscillating motion comprises a reciprocating link 27 having a convexly curved portion juxtaposed to a pulley 40 and connected thereto by flexible means 41 in a manner to prevent radial displacement of the convexly curved portion of the link from the pulley at the points of tangency of the flexible means. In a windscreen wiper mechanism a reciprocating link 35 imparts oscillating motion to an oblique pivot shaft 36 through a cable 41 and pulley 40. The cable 41 is tensioned between the ends 47, 48 of a curved track member 37 attached to the end of the link 35, and extends round the built-up pulley 40, being located thereon by a lug 40 located in a tapered slot 45 in the pulley. To eliminate bending of the cable 41, in operation, the curved and grooved base 50 of the member 37 is held against the rim of the pulley by the tension in the cable and a grooved track in the pulley is made substantially helical and inclined at the angle of obliquity of the shaft 36. The pulley 40 is built from two sections riveted together, the two quarter circumference portions of the lower half of each section being bent along a chord in opposite directions and the complete pulley being secured to the spindle at an angle to provide an approximation to the helical path of the cable 41. To assist the approximation, the two parts of the pulley are mounted slightly offset to each other and a grooved strip is secured round the working part of the periphery. Specification 833,776 is referred to.
Patent GB-420463-A (GB)
Title: Improvements relating to optical projection apparatus
IPC: B64F1/20
Filed: 1933-09-14
Abstract: 420,463. Aircraft landing lights. CHANCE BROS. & CO., Ltd., and HAMPTON, W. M., Glass Works, Smethwick, Birmingham. Sept. 14, 1933, No. 25450. [Class 75 (iv)] An aircraft landing-light for use on aerodromes or the like comprises a shadow bar c which is arranged transversely across the axis of a reflector a of the type which is wholly or partly of parabolic or substantially parabolic form in vertical section and wholly or partly of circular form in horizontal section. The position of the shadow d can be varied by swinging the reflector and shadowbar together or by swing- ing the shadow bar relatively to the reflector. A portion of the reflector may extend forwardly beyond the light source b, and the reflector may be used in combination with dioptric elements.
Patent GB-382991-A (GB)
Title: Improvements in water taps
IPC: F16K27/12
Filed: 1931-09-11
Abstract: 382,991. Water taps. MEYNELL & SONS, Ltd. and MEYNELL, W. C. E., Montrose Street, Wolverhampton. Sept. 11, 1931, No. 25499. [Class 135.] In a screw-down water tap of the kind in which the stuffing box C and gland H are protected from dust by a substantially cylindrical sheath F which extends into a recess formed in the handle D but is independent of the handle, the lower end of the sheath F is secured in position by screwing it to the stuffing box C until it presses down on the top body A. The handle D is non-rotatably mounted on the valve spindle B. The sheath F extends into the handle D in all positions of the spindle B. Inwardly projecting lugs G are engaged by a key to remove the sheath F after the handle D has been removed by unscrewing the set-screw E. Specification 242,868, [Class 135, Valves &c.], is referred to.