baber/WOPTO huggingface dataset:
Patent GB-1178329-A (GB)
Title: N-[delta-(6-Purinylthio) Valeryl] Amino Acids and derivatives thereof, and a method of producing the same
IPC: C07D473/38
Filed: 1967-06-14
Abstract: 1,178,329. N - [# - (6 - Purinylthio) - valeryl]- amino acid derivatives. SPOFA, UNITED PHARMACEUTICAL WORKS. 14 June, 1967 [1 July, 1966], No. 27367/67. Heading C2C. Novel N - [8 - (6 - purinylthio) - valeryl]- amino acid derivatives of the general formula wherein n is 0 or an integer from 1 to 5; R is a C 1-8  straight or branch chain alkoxy or hydroxy group or a residue of a peptidically bound amino acid or dipeptide having the carboxyl group(s) either free or esterified with an alcohol containing a straight or branched carbon chain with 1-7 carbon atoms, wherein said residues, so far as they contain an asymmetric carbon atom, can be optically active or racemic; Y is hydrogen, or a C 1-5  alkyl, phenyl, benzyl, α-hydroxybenzyl, 3-indolyl, 3-indolylmethyl, -CH 2 OH, -CH 2 SH, -(CH 2 ) m SCH 3 , -(CH 2 ) m COR 1 , or group, wherein m is an integer from 1 to 3 and R 1  is an alkoxy group with a straight or branched carbon chain having 1-8 carbon atoms, are prepared, when R is a C 1-8  alkoxy group, by condensation of a 6-(4-carboxybutyl)-thiopurine derivative and an amino acid ester of the respective general formulµ wherein X is chlorine or -N 3  and R 2  is an alkoxy group containing a straight or branched carbon chain with 1-8 carbon atoms; or, when R is a hydroxy group, by saponification with alkali of the resulting N-[#-(6-purinylthio)-valeryl]- amino acid derivative of the first general formula above wherein R is a C 1-8  alkoxy group; or, when R 1  is a residue of a peptidically bound amino acid or dipeptide, by reaction of said resulting amino acid derivative with hydrazine hydrate to form the corresponding N-[#-(6- purinylthio)-valeryl]-amino acid hydrazide, reaction of said hydrazide with nitrous acid to form the corresponding N-[#-(6-purinylthio)- valeryl]-amino acid azide and subsequent condensation with an amino acid ester of the third general formula above to give an ester of a dipeptide of the first general formula above, which can be alkali-saponified to the corresponding free acid and the latter optionally converted to a tripeptide ester of the first general formula above by reaction with an amino acid ester of the third general formula above in the presence of N,N<SP>1</SP>-dicyclohexyl carbodiimide, which ester can in turn be alkali-saponified to the corresponding free acid.
Patent GB-728308-A (GB)
Title: Improvements in or relating to labelling apparatus
Inventor: NEWMAN ROBERT JOHN
IPC: B65C11/04
Filed: 1952-10-31
Abstract: 728,308. Feeding sheets. TRAPOW & CO., Ltd., D. Oct. 1, 1953 [Oct. 31, 1952], No. 27414/52. Class 100 (1). Sheet - separators ; pile tables.-In apparatus for separating labels from a stack by means of a roll having gum thereon, the roll 12 is continuously rotated, e.g. by a motor 62 in a clockwise direction, and the stack is lifted manually so that the roll is able to bear on a larger surface of the front label and thus lift it away from the stack. The stack 40 is supported in a frame which slider gravitationally down the side limbs 29 of a U-shaped frame pivoted at 28, and the front label is thus pressed against the roll 12. The apparatus is in a box-like casing 10, and a gummed label is delivered on to the cover-plate of a gum box 15 at each depression of a bar 37. The box 15 is open at the end adjacent the roll 12 and can be adjusted by screw-means. The bar 37 is carried by rods 35 secured to the rear member of a U-shaped frame 33 pivoted on a bar 16 and connected by a link 32 to one of the limbs 29 whereby the stack 40 is lifted. A set of fingers 26 on a rod 25 rest on the roll 12 and strip the gummed labels therefrom. The stack 40 is supported in a frame and held by one or more elastic bands 51, and is constructed as described in Specification 728,309. The labels may subsequently be delivered automatically to bottles &c.
Patent GB-481976-A (GB)
Title: Improvements in and relating to lids for cardboard or like boxes, cartons, and the like
IPC: B65D5/64
Filed: 1936-10-09
Abstract: 481,976. Display boxes. HANSFORD, B. H. Oct. 9, 1936, No. 27418. [Class 18] The lid of a cardboard box, carton, &c. for packing and displaying confectionery, comestibles, &c., has a line of weakening 7 so that, when the lid is positioned as shown with its rims 4a beneath the bottom, a section of the lid can be bent outwards by tearing the lid flange along the line 7 to form a display panel. The line 7 is impressed from the side opposite to that from which the bending lines of the lid flanges are impressed, the lid may be secured in its display position by a clip or a tongue thereon which enters a slit in a side of the box 7 or by similar means. The lid is formed from a rectangular blank slit to form tabs 6.
Patent GB-206667-A (GB)
Title: Improvements in or relating to apparatus for catching flying vermin
IPC: A01M1/08
Filed: 1922-10-10
Abstract: 206,667. Andreucci, C. Oct. 10, 1922. Insect traps. - Apparatus for catching flying vermin comprises a cylindrical casing b mounted on a pedestal and containing an electric incandescent lamp a and a motor e driving a fan d in a dark chamber c so that insects attracted by the light are drawn through the casing b into a gauze &c. bag g attached to the end of the casing by a ring of cloth &c. f. The lamp and motor have a common source of current and the inner surfaceof the casing may be reflecting.
Patent GB-1307163-A (GB)
Title: Liquid filter assembly
IPC: B01D29/62
Filed: 1971-06-11
Abstract: 1307163 Filter M PICARD 11 June 1971 [9 July 1970] 27466/71 Addition to 1,251,441 Heading B1D Filter elements B arranged in a circle are successively backwashed with filtered fluid forced from space 9 when piston 1 moves rightwards (Fig. 1) under the action of spring 8, the backwash cylinder 7 being then stationary, a vertical extension 15 of the piston switching valve 6 to its alternative position on completion of the rightward movement, so that space 2 communicates with the atmosphere, whereupon the pressure in downstream chamber 3, 4 of the filter acts on the right hand face of the piston and moves it leftwards, compressing spring 8 and turning the cylinder 7 on its vertical pivot to align the backwash outlet A with the next element B. Spring-loaded valve 11 is closed during rightward movement and open during leftward movement of the piston to fill space 9 with filtrate. The lower end of extension 15 (Fig. 2) carries a roller 14 which engages in a recess (16a) to turn an annular cam (16) in reciprocatory manner as the piston reciprocates. The cam carries a spring-loaded pawl which engages a ratchet wheel integral with cylinder 7, to turn the cylinder stepwise during leftward movements of the piston (Fig. 3, not shown). The upper end of extension 15 is attached to one end of a wire spring 20 and carries a roller 15a which engages the lower pointed end of a cam 23, pivoted at 24 and supporting a bell-section member 22 secured to the other end of spring 20. Member 22 is secured to the movable part of valve 6 and the arrangement causes valve 6 to move abruptly from one position to the other at the ends of the piston stroke to maintain the piston in continuous motion. The adjustable stops 26, 27 define the extreme positions of member 22 and hence of the movable part of valve 6.
Patent GB-483232-A (GB)
Title: Improvements in or relating to hydrostatic valves
IPC: F42B19/40
Filed: 1936-10-10
Abstract: 483,232. Torpedoes. WHITEHEAD TORPEDO CO., Ltd., and JONES, L. Oct. 10, 1936, No. 27538. [Class 9 (ii)] Relates to practice heads in which the ballast is blown off at the end of a run by compressed air under the control of a hydrostat 6 and a flap 27 deflected by hydrodynamic pressure during the run, as described in Specification 398,578. According to the invention, the hydrostat 6 is mounted in a chamber 3 which communicates with the exterior of the head solely by means of one or more passages of restricted size which are so arranged that the hydrostat is substantially not influenced by variations of pressure due to the passage of the torpedo through the water. In the construction shown, the chamber 3 is separated from the pocket 4 housing the control mechanism by a partition 5, and communicates with the exterior by means of two pipes 8, 11, the former leading to a port 8a in the side of the head at the rear of the pocket 4, and the latter to the space 9 between the end of the air chamber 10 of the torpedo and the torpedo head, this space in turn communicating with the exterior through apertures 12, 13. The pipe 8 opens into the highest part of the chamber 3 and permits the escape of the air in the chamber upon launching the torpedo. The Provisional Specification states that the invention may be applied also in connection with depth-recording instruments on torpedoes, submarines, and the like, to eliminate the effect of speed through the water on the readings.
Patent GB-716258-A (GB)
Title: Improvements relating to the charging zone of two-stage electrostatic-precipitators
IPC: B03C3/12
Filed: 1951-11-26
Abstract: 716,258. Electrostatic filters. HEINRICH, D. O. Nov. 26, 1951, No. 27640/51. Class 39(1) In a two-stage electrostatic precipitator having at least one pervious non-discharging electrode 2<SP>1</SP> in the charging zone, the distance between the electrode 2<SP>1</SP> and the discharge electrodes 3 is adjustable while the precipitator is in operation. As shown, the electrode 2<SP>1</SP> comprise wire nets partly surrounding the individual discharge electrodes in semicircles. The non-discharging electrodes may be moved manually or automatically so as to ensure that the distance between them and the discharge electrodes is maintained as near the sparking distance as is practicable. Preferably the voltage in the charging zone is determined by the voltage in the collecting zone 4, A further set of pervious non-discharging electrodes may be provided downstream of the discharge electrodes. Specification 705,604, [Group XXXV], is referred to.
Patent GB-808505-A (GB)
Title: Method of and apparatus for classifying fibres
Inventor: GYIMOTHY ISTVAN
IPC: G01N33/36
Filed: 1955-09-28
Abstract: 808,505. Testing yarns photo-electrically. LICENCIA TALALMANYOKAT ERTEKESITO VALLALAT. Sept. 28, 1955, No. 27658/55. Class 40 (3). In a method of classifying textile yarns on the basis of their different double refractions, photoelectric measurement is made of the intensity of light transmitted by the yarn, the wavelength of the incident light being so selected that the intensity changes in the same sense as the retardation of the light produced by the double refraction. As shown (Fig. 3) light from a source F is made parallel by lens K1, passes through a filter G, to be described, is plane polarized by prisms P and passes through a sample of the cotton under test held between glass plates T and through an analyser A crossed with the polarizer P and is directed by lens K2 on to a photo-cell C1. A correction for the area of the sample is made by directing part of the light received from the sample directly on to a second cell C2. Cells C1, C2 are connected to an amplifier E so that the output of cell C1. is compensated for the area under examination by the output of cell C2. The Specification points out that since the where # is the retardation, I the transmitted light, and Io the incident light, for certain values of #, # and A will change in opposite senses. The wavelengths are so selected that they change in the same sense. An alternative method of compensating for the area of the sample is described consisting in replacing polarizer P by a filter, photo-cell C2 and the associated optical apparatus being unnecessary. Comparison of the light reaching cell C1. with and without the sample in position gives a measure of sample area. This may be done by using a pair of scales as shown in Fig. 2. In the absence of the sample, amplifier sensitivity is adjusted so that the pointer of the output meter reads 100 on scale S. The sample is then inserted and the reading on the scale falls. Sensitivity is then adjusted until the reading on scale H is the same as was formerly on scale S.
Patent GB-533128-A (GB)
Title: A blind for blacking-out rooflights, windows and the like
IPC: E06B9/262
Filed: 1939-10-12
Abstract: 533,128. Window blinds. McLELLAND, J. W. Oct. 12, 1939, No. 27691. [Class 20 (iii)] A blind for blacking out rooflights and windows comprises a length of cloth, paper or the like a fixed at one end by a lath c to a purlin d and at the other end to a lath e', laths e providing intermediate supports. The ends of the laths are extended beyond the blind and ride upon fixed track members f, the end lath e<SP>1</SP> having projecting nails k to prevent endwise movement of the laths. By pulling on a cord g attached to the end lath and running over pulleys i the blind is drawn up so that it hangs in folds a' substantially clear of the opening. If the angle of the rooflight is not sufficient to ensure the descent by gravity of the laths, the cord g may be extended over the lower purlin j to afford positive closing.
Patent GB-748725-A (GB)
Title: Improvements in and relating to air supply means for internal combustion engines
Inventor: JONES JOSEPH
IPC: F02B33/00
Filed: 1953-10-08
Abstract: 748,725. Cooling and drying charge; charging pumps. NATIONAL GAS & OIL ENGINE' CO., Ltd. Aug. 16, 1954 [Oct. 8, 1953], No. 27719/53. Class 7(2) [Also .in Group XXVI] A compressor c driven by an air turbine e delivers charge air' to the turbine e via a cooler d, the turbine e delivering to the engine a via a further compressor b. There may be a moisture trap v, and the compressor c may be additionally driven by an electric motor w. The compressor b is driven by one or more power sources, e.g. an exhaust turbine k and an electric motor s. The motor s or w may be controlled by the temperature and/or hygrometric conditions of the charge air.
Patent GB-697435-A (GB)
Title: Vehicle steering wheels
IPC: B62D1/10
Filed: 1951-11-27
Abstract: 697,435. Flexible couplings. CLIFFORD COVERING CO., Ltd. (Quillery, H. P. M.). Nov. 27, 1951, No. 27760/51. Class 80 (ii). [Also in Group XXXI] A resilient coupling connecting a steering wheel hub a to the steer-spindle b comprises a pair of plates e, j, secured to the hub a and spindle b, respectively, one of the plates having at least one recess f accommodating a rubberlike material n through which is transmitted the torque between the parts e, j. As shown, the plate e has three recesses f and the plate j three radial projections k lying therein. The plate e is secured to a flange c on the wheel hub a by bolts h, an intermediate plate i being interposed. The rubber n may be bonded to the plate i and projections k. The ends of the rubber n may be chamfered to effect a progressively increasing resistance to relative angular movement between the coupling parts. In modifications the same effect is obtained by forming holes or recesses in the rubber. The projections k may be completely embedded in the rubber n. A cover piece q supported by a spring r and having a bayonet joint connection with the ends of the bolts h may form part of a switch or accommodate a watch.
Patent GB-879027-A (GB)
Title: Improvements in or relating to luggage carriers for vehicles
IPC: B60R9/058
Filed: 1959-08-14
Abstract: 879,027. Luggage carriers for vehicles. PETERS, E. F., and PETERS, H. G. C. Aug. 14, 1959, No. 27815/59. Class 103(2). In a modification of the luggage carrier strainer described and claimed in Specification 739,327, the hinged hook 1 attachable to the vehicle, is connected to the bolt 3 of the shank 2, 3, by means of a collar 4 which is a loose fit on the bolt 3, and the end of the shank portion 2 is flattened and curved to the shape of a hook 12, engageable with the carrier. The hook 1 is hinged to the collar 4 by a pin 5 and is provided with a gutter engaging plate 9, as described and claimed in Specification 805,766, and a rubber pad 8. The collar 4,is securable by a washer 6 and nut 7.
Patent GB-1379911-A (GB)
Title: Process for preparing chlorinecontaining compounds
IPC: C07C17/32
Filed: 1971-06-15
Abstract: 1379911 Reaction of dichlorocarbene with a #CH bond BRITISH PETROLEUM CO Ltd 25 May 1972 [15 June 1971] 27943/71 Heading C2C Chlorine-containing compounds of the formula R 1 R 2 R 3 C-CHCl 2 , and/or of the formula wherein R 1 , R 2  and R 3  are the same or different and are each hydrogen or an optionally substituted hydrocarbyl radical or two or more of R 1 , R 2 , and R 3  together form a carbocyclic ring, are obtained by reacting a compound of Formula I: R 1 R 2 R 3 C-H, with dichlorocarbene formed by the vapour phase pyrolysis of chloroform in the presence of said reactant (I); in which compound of Formula (I) there is not a group containing an activating unsaturated carbon-carbon bond, viz there is no unsaturated carbon-carbon bond in a conjugated position in relation to the #C-H linkage nor is there an aromatic ring joined directly to the #C-H group.  Preferred reactants (I) are C 1-50  alkanes, e.g. CH 4 . The vapour phase pyrolysis of CHCl 3  may be effected by heating the latter to >400‹ C. (e.g. 450-600‹ C.), and an inert gas (e.g. N 2 ) may be mixed with the reactant vapours. A molar ratio of (I) to CHCl 3  of more than 1 : 1 is preferred. Examples describe the pyrolysis of CHCl 3  in the presence of (1) cyclohexane and (2) methane, the major products being (1) chloromethylenecyclohexane and dichloromethylcyclohexane and (2) vinyl chloride, dichloromethane and dichloroethylene respectively. The chlorine-containing products are useful as plasticizers and pesticides.
Patent GB-363635-A (GB)
Title: Improvements in or relating to the reinforcement of shoe upper parts or the like
IPC: A43D25/06
Filed: 1930-09-19
Abstract: 363,635. Boot - making machines. BRITISH UNITED SHOE MACHINERY CO., Ltd. and HAZELTON, G., Union Works, Belgrave Road, Leicester. Sept. 19, 1930, No. 28006. [Class 17 (i).] Uppers, machines for.-An ironing device, adapted for uniting upper leather parts to fabric or other reinforcement by means of adhesive and pressure, comprises a work-supporting table and an ironing tool arranged for movement along a definite path to extents controllable by an operator across the surface of the table, the table being arranged to allow of its bodily movement in the plane of its surface transversely to the path of the iron. The device comprises a fixed baseplate. 10, Figs. 1 and 2, above which is a work-supporting table 14 pivoted on a stem 12 and supported on rollers 16 so as to allow swinging movement from side to side. The front portion 18 of the table 14 is raised and provided with a cloth covering to form a work table. Rigidly mounted on the stem 12 is a bracket 24 to which are pivoted two bell-crank levers 30, 32 connected by a link 33 at the upper ends of their main arms. The iron 40, which may be an ordinary electrically-heated domestic iron, is connected to the upper ends of the levers 30, 32, by two parallel links 34, 36. The short arms of the levers 30, 32 are connected by rods 44, 46 to two foot pedals; by depressing the pedal connected to the rod 44 the iron is moved backwardly, and by depressing the other pedal the iron is moved forwardly. Thus the movement of the iron is under control of the operator. In order to lift the iron off the table at the rear end of its travel, a rocking member 48 is provided having a groove 50 in which the rear edge of the iron engages, the iron being lifted into the position shown in Fig. 2. The work table is swung from side 1 to side by the operator while the iron is moved backwards and forwards. A light spring 56 is preferably provided which normally holds the work table in a central position.
Patent GB-651379-A (GB)
Title: Improvements relating to the dynamic braking of induction motors
IPC: H02P3/24
Filed: 1948-10-28
Abstract: 651,379. Control of A.C. motors. MULLIGAN, J. W., GRAY, A. H., WILSON, J. S., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Oct. 28, 1948, No. 28038. [Class 38(iii)] When an induction motor 1 is braked, two phases of its stator winding are supplied with direct-current from an exciter 3 and its rotor winding is connected to a variable resistor 5. A desired relation between the braking torque and the resistance is obtained by varying the exciting current in correspondence with the rotor current. A reduction of the resistor 5, for example, increases the current passed from current transformer 6 through rectifier 7 to the control winding of a transductor 8, and the resultant reduction of the reactance of the alternating-current winding of the transductor increases the output of rectifier 11 to a field winding of the exciter 3. The output of rectifier 11 may be applied directly to the motor, or,it,may be used to regulate a grid-controlled rectifier through which the exciting-current is supplied. The transductor may be controlled in accordance with the difference between currents respectively proportional to the rotor current and the exciting-current, the two representative currents being applied in opposition to one control winding of the transductor, or to two opposing windings. The current proportional to the exciting- current may be derived from a shunt in the output circuit of the exciter 3, or one in the field winding circuit of that machine. Means may be provided to prevent the excitation of the induction motor being reduced below a pre-determined value.
Patent GB-353317-A (GB)
Title: Method of and machine for manufacturing frame warp fabrics
IPC: D04B23/00
Filed: 1930-09-19
Abstract: 353,317. Warp knitting-machines. WIRTH, E., Hartmannsdorf, near Chemnitz, Germany. Sept. 19, 1930, No. 28098. [Class 74 (ii).] A machine which knits a combined warp and frameknitted fabric, there being a loop of each kind on each needle, comprises essentially a row of bearded needles, a set of warp guides 3, an ordinary yarn guide 4, jack and dividing sinkers 12, 13, and a presser 10. Loops are sunk after the parts 3, 4 have arrived to the front of the needles, as shown in the Figure, but before the warps are laid in the needles. The sinkers 13 are held by a rail 25 working in an elongated recess in the sinkers 12, which are operated by jacks 22.
Patent GB-251543-A (GB)
Title: Improvements in screens for half tone photography
IPC: G03F5/10
Filed: 1925-11-09
Abstract: 251,543. James, R. W., (Levy & Co.. M.). Nov. 9,1925. Processes, special. -An outer surface of a screen consisting of rulings embedded between two sheets of glass is formed accurately parallel with the plane of the rulings after adjusting the latter by focussing means into an accurately predetermined plane. A screen A, Fig. 3, is mounted in a vertically adjustable frame 15 on a revolving table 12. By means of a microscope on the supporting frame 13 the rulings can be adjusted into a determined plane. A grinding- apparatus 16 is then substituted for the microscope and a shoulder C formed round the surface of the screen accurately parallel with the rulings. A frame 20, Fig. 4, may be fitted over the screen, the outer surface of which is still parallel to the plane of the rulings.
Patent GB-1142615-A (GB)
Title: Improvements in or relating to production of articles from metallic and non-metallic powders
Inventor: BRACKPOOL JOHN LAWSON
IPC: B30B11/02
Filed: 1965-07-03
Abstract: 1,142,615. Compaction by compression and vibration. BIRMINGHAM SMALL ARMS CO. Ltd. 4 July, 1966 [3 July, 1965], No. 28274/65. Heading B5A. Articles are produced by multiple impacting of powder by oscillating the tool elements for advance and withdrawal simultaneously into a die containing the powder, the oscillation of one tool element being transmitted to the other through the powder mass, the die being oscillated at an amplitude and frequency different from the tool elements. The apparatus comprises one or more punches movable into and out of a die, preferably all being oscillated simultaneously. Preferably, the die is arranged between an upper and lower punch, which may each be supported by resilient means e.g. one or more springs and a damping device. Alternatively, both punches may be provided with vibrating means, there being a mechanical, electrical or hydraulic linkage therebetween to maintain synchronization.