baber/WOPTO huggingface dataset:
Patent GB-1123734-A (GB)
Title: Electrical motor regulating arrangement
Inventor: MUSHAM JOHN ROBIN
IPC: H02P7/295
Filed: 1966-06-10
Abstract: 1,123,734. Control of D.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 18 May, 1967 [10 June, 19661, No. 26030/66. Heading H2J. [Also in Division G3] An electric motor M is supplied from A.C source L, N, through thyristor Th which is controlled by a circuit comprising transistors TR1, TR2, associated with Zener diode ZD2. The motor rotates an opaque disc D so that the impedance of photo-conductor PC switches between high and low values by the flashes of light from lamp L impinging upon it. When the lamp L is obscured by the disc so that element PC has a high impedance, transistor TR1 conducts at a rate determined by the setting of resistor RV1 to charge capacitor C1 in a linear manner. The transistor TR2 remains non-conductive while the charge on capacitor C1 remains below the emitter potential. As one of the slots in the disc registers with the lamp, the impedance of the photo-conductor is reduced to charge capacitor C4 to a datum level determined by diode ZD1. As the slot moves out of register, capacitor C4 discharges for a fixed period during which transistor TR1 is non-conductive. The charging of capacitor C1 is interrupted and its voltage remains at a steady level. This cycle is repeated whereby the voltage on capacitor Cl follows a stepped waveform rising to the threshold value of transistor TR2. When collector current begins to flow in transistor TR2, the charging rate of capacitor C1 is increased sharply whereby transistor TR2 quickly becomes fully conductive. A pulse is then developed across resistor R3 to trigger the thyristor Th which is held in the conductive state until the end of the half-cycle. The capacitor C1 then discharges, transistor TR2 ceases to conduct, and the system reverts to its initial condition. Capacitor C3 and resistor R5 protect the system against excess voltage. The arrangement tends to maintain the motor speed constant at a value determined by the setting of resistor RV1.
Patent GB-518886-A (GB)
Title: Manufacture of phenylpyridine derivatives
IPC: C07D213/26
Filed: 1938-09-06
Abstract: 518,886. Phenylpyridine derivatives. HEILBRON, I. M., HAWORTH, J. W., HEY, D. H., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Sept. 6, 1938, No. 26064. [Class 2 (iii)] Phenylpyridines, in which the pyridyl radical is unsubstituted and the phenyl radical carries one or more substituents chosen from the group consisting of bromo, chloro, nitro, methyl, ethyl, acetylamino, methoxy and ethoxy are manufactured by mixing pyridine with an aqueous solution of a diazonium salt derived from aniline substituted by one or more substituents chosen from the above group, the mixing being effected so that the pyridine is always present in excess. If necessary, the reaction mixture is kept at an elevated temperature. The phenyl pyridines are usually obtained as mixtures of isomeric compounds and are suitable as dyestuff intermediates. In the examples the following compounds are treated with excess pyridine, (a) o, m and p-nitrobenzene-diazonium chloride ; (b) 4- or 5-nitro-2- methyl-benzenediazonium chloride ; (c) o, m , and p-anisidine; (d) p-phenetidine; (e) 3-amino-6-acetylamino toluene ; in this case the product is hydrolysed with hydrochloric acid to give 3-methyl-4:-aminophenyl pyridines ; (f) the diazonium salt of 2:5 dichloraniline ; (g) the diazonium salt of p-bromo-aniline; (h) the diazonium salt of p-chloroaniline ; (i) the diazonium salt of 3:4-dibromoaniline ; (j) the diazonium salt of 5-chloro-2-aminotoluene and (k) the diazonium salt of 2:5 dimethoxyaniline.
Patent GB-1049158-A (GB)
Title: Improvements relating to stressing of concrete structures
Inventor: DRUCKER RUDOLF
IPC: E04C5/12
Filed: 1963-07-02
Abstract: 1,049,158. Prestressed concrete. G. K. N. REINFORCEMENTS Ltd. July 29, 1944 [July 2, 1963], No. 26146/63. Heading E1V. [Also in Division G1] In apparatus for applying a compressive stress to a concrete structure, e.g. a beam, there is provided a bar 9 extending through a plastics sleeve 15 and formed with threads 10, 11 of differing pitch provided with nuts 6, 7 in abutment with load distributing plates 1 engaging both surfaces 2 of the structure 3 to be stressed. The nut 6 is formed with feet 13 which engage the surface of the plate 1, so that on tightening the nut the feet undergo plastic deformation such as to uniformly close the gap 14 between the base of the nut and the plate 1. The tensile load may be determined by measuring the gap 14 by means of a feeler gauge.
Patent GB-835623-A (GB)
Title: Improvements in or relating to portable power operated winches
Inventor: LUNN RICHARD TURNER
IPC: B66D3/02
Filed: 1957-08-19
Abstract: 835,623. Guiding cable on to winch drums. A.C.E. MACHINERY Ltd. Aug. 19, 1958 [Aug. 19, 1957], No. 26151/57. Class 78 (5). The cable 6 for winch drum 12 is guided thereto by pulley 7 carried by housing 5 rotatably mounted in support 4 and the angular position of the pulley is automatically varied with the swing of the rope (which hauls a log) by means of fairleads 10 which are carried by arm 9 pivotally mounted on housing 5, and which engage the rope. Spring 11 biases arm 9 so that if the tension slackens the arm pivots to trap the cable to keep taut the coils on the winch drum.
Patent GB-340297-A (GB)
Title: Method of adjusting the proportions of water and flour in the production of dough
IPC: A21C1/14
Filed: 1929-08-29
Abstract: 340,297. Testing flours. HANKOCZY, E. DE, Kis Rokus Ucca, Budapest. Aug. 29, 1929, No. 26268. [Class 58.] To adjust the most desirable proportion of water and flour in mixing dough a sample of dough found to be of suitable consistency is placed in a miniature kneading machine and its resistance to kneading, or the power used in kneading the sample, measured. A known quantity of flour of the class in question is then kneaded in the machine with a known but insufficient quantity of water and water is added in small known amounts until the resistance or the power absorbed in the kneading machine reaches that noted in the test of the standard sample. The correct quantity of water for a known weight of flour is thus determined. A suitable dynamometer for use in determining the power absorbed comprises a casing 8 adapted to couple a driving shaft 3<1> to the kneading machine shaft 1<1> through spiral spring connections 6, 7. Relative angular displacement of the shafts is registered by a pointer 4 moving over a scale 5 and actuated by a connection to a bevel wheel 11 turned by the differential movement of shafts actuated by pinions 9<1>, 10<2>, connected to pinions 9, 10, on the kneading machine shaft and the power shaft respectively. Reference has been directed by the Comptroller to Specifications 16389/89 and 6784/91, [both in Class 58, Grain &c.].
Patent GB-767340-A (GB)
Title: Improvements in or relating to harvester and decorticating machine
IPC: D01B1/14
Filed: 1954-09-10
Abstract: 767,340. Harvesting fibre-bearing plants. CARY, J. E., SHAFER, R. E., and CARY, V. Sept. 10, 1954 [Sept. 29, 1953], No. 26272/54. Class 6(3). [Also in Group IX] A combined harvesting and decorticating machine for stalk-like plants such as ramie comprises a frame 20 mounted on traction wheels 21, 22, 23. As the machine moves forward, stalks are guided by a row divider 74 between an endless chain 76 and an endless belt 77. Belt 77 engages between projections 78a at the top and bottom of chain 76, the belt and chain gripping the stalks and conveying them along curved paths 88, 89, Fig. 4. As the stalks travel along path 88 they are cut at their butt ends by a vertically-adjustable rotary blade 66 to which is attached a disc 67 having upwardly extending trash-removing paddles 68. The butt ends of cut stalks are deflected by rods 97, 98 inwardly of the machine and clear of incoming stalks. A secondary stalk conveyer chain 91, having fingers 92 riding on a plate strip 90, is driven rather faster than belt 77 and engages the stalks above belt 77 so that the stalks are gradually tipped rearwardly of the machine and delivered head first, with the aid of guide sheets 113, 114 onto a transverse conveyer 99 which feeds them to the decorticating means (see Group IX). A motor drives both the traction wheels and the harvesting mechanism, the drive to the -harvesting mechanism being through a one-way Clutch to prevent reversal of that mechanism when the ground drive is reversed.
Patent GB-1305869-A (GB)
IPC: C07F15/02
Filed: 1971-04-19
Abstract: 1305869 Cyclopentadiene iron complexes SNAM PROGETTI SpA 19 April 1971 [3 April 1970 (2)] 26274/71 Headings C2J and C2C Compounds of general formula or where M is a nucleophilic substitution product of CS, CH2 = CH2 or CH 2  = CHR (where R is alkyl or aryl), M<SP>1</SP> is a nucleophilic substitution product of CO and L is phosphine, arsine or a substituted derivative thereof are prepared by reacting [C 5 H 5 Fe(CO) 2 L<SP>1</SP>]+Y- where, for compounds of formula (a), L<SP>1</SP> is CS, CH2=CH2 or CH 2  CHR and for compounds of formula (b), L<SP>1</SP>=L, and Y is a negative ion such as BF 4 -, PF 6 -, Cl- or B(C 6 H 5 ) 4 - with a nucleophilic reagent such as N 3 -, NH 2 -NH 2 , N 2 H 3 R, NH 2 R, NHRR<SP>1</SP>, RO-, NCO-, NCS-, CN- or RCOO- (where R and R<SP>1</SP> are alkyl or aryl), normally at 20-60‹ C. in an inert solvent or in the nucleophilic reagent as reaction medium. The invention also includes a process for preparing a z-olefin-iron complex of Formula I where X is a radical derived from a nueleophilic reagent and Y is a negative ion, by reacting C 5 H 5 Fe(CO) 2 CH 2 CHRX with R<SP>1</SP> 3 C<SP>+</SP>Y<SP>-</SP> where R is H, alkyl or aryl and R<SP>1</SP> is alkyl or aryl, the compound being prepared in Example 8. In the other examples, compounds of formula (a) are prepared in which M is NCS, CSOCH 3 , CSOCH 2 CH 3 , CSNHCH 3 , CN, CH 2 CH 2 OCH 3  or CH 2 CH 2 NHR and of formula (b) in which L<SP>1</SP> is P(C 6 H 5 ) 3  and M<SP>1</SP> is NCO. Vinyl compounds of formula CH 2  = CR(X) where R is H, alkyl or aryl and X is as above are prepared from the complex of Formula I by either (i) subjecting the complex to U.V. radiation or (ii) reacting the complex with an olefinically unsaturated compound such as ethylene under superatmospheric pressure at 60-90‹ C.
Patent GB-953274-A (GB)
Title: Hydrazides and the manufacture thereof
IPC: C07C237/00
Filed: 1962-07-09
Abstract: The invention comprises compounds of the general formula: <FORM:0953274/C2/10> wherein R is a hydrogen or a halogen atom, a carboxy or a C1-4-alkyl or -alkoxy group, R1 is a hydrogen atom or C1-4-alkyl group, n is 0 or 1 to 7; and compounds of the general formula: <FORM:0953274/C2/21> where R3 is a hydrogen or halogen atom, a methylol, carboxyl, C1-4 or -alkoxy group, R1 is a hydrogen atom or a C1-4 alkyl group, R2 is a carboallyloxy, carbobenzyloxy or tosyl group and n is 0 or 1 to 7, and a process for the preparation of compounds of the general formula: <FORM:0953274/C2/32> wherein R1R2R3 and n are defined as above by reacting an azide of the general formula <FORM:0953274/C2/43> with a phenyl hydrazine of the formula: <FORM:0953274/C2/54> and removing the amino protective group R2 to produce the alpha-amino dibasic acid hydrazide, e.g. by hydrogenolysis or sodium and liquid ammonia. L-Carbobenzyloxyglutamic acid 5-azide is prepared by reacting 5-methyl L-glutamate with benzyl chloroformate to form 5-methyl L-N-carbobenzyloxyglutamate reacting this with hydrazine to give L-N-carbobenzyloxyglutamic acid 5-hydrazide and treating the hydrazide with nitrous acid. Similarly are prepared the D- and DL-isomers; and L-N-carbobenzyloxy, aspartic acid 4-azide.  a -Hydroxy-p-tolylhydrazine is prepared by reacting p-carboxyphenylhydrazine with methanol to form p-carbomethoxyphenelhydrazine and reducing this with lithium aluminium hydride.  U.S.A. Specification 2,733,937 is referred to.
Patent GB-726810-A (GB)
Title: Improvements relating to pneumatic vehicle wheel tyre casings
IPC: B60C9/08
Filed: 1952-10-20
Abstract: 726,810. Pneumatic tyres. PIRELLI SOC. PER AZIONI. Oct. 20, 1952 [May 3, 1952], No. 26320/52. Class 144 (2). A pneumatic tyre cover has a carcass built up of at least two layers 1 of fabric comprising rubberized metal cords arranged in transverse radial planes, reinforced in the tread region 2 by at least two layers 3 of fabric comprising rubberized metal cords arranged parallel to each other circumferentially of the tyre, the metal cords of the layers 1, 3 comprising twisted or braided wires of not less than 0.2 mm. diameter. It is stated that with such an arrangement the metal cords of the layers 1, 3 are subjected only to bending stresses when the tyre is in use. The reinforcing layers 3 may be alternated with additional metal or textile cord fabric layers of the same width the cords of which lie at right angles to those in the layer 3. The tyre beads may be formed with one or more additional bead wires for increased stability of the beads, and the tyre in the asmoulded condition may have a cross-section of greater width than height. Specification 726,806 is referred to.
Patent GB-1307349-A (GB)
Title: Device for providing workpieces with a screwhead
IPC: B21H3/06
Filed: 1971-04-19
Abstract: 1307349 Rolling threads NEDSCHROEF OCTROOI MAATSCHAPPIJ NV 19 April 1971 [9 April 1970] 26369/71 Heading B3M The inclination of a stationary platen 2, Figs. 3 and 4, of a screwthread forming device is controlled with respect to a reciprocating platen 11 by the movement of a wedge 26 in a cleft 23 of a platen support 1. A required diameter of the screwthread is set by the vertical movement of wedges 28 and 29 while vertical adjustment of the platen 2 is set by movement of wedges 15 and 16. The position of the platen 2 is then set by tightening a bolt 32. In operation a workpiece is fed between edges 18 and 19 to a pusher 34, the latter then moving the workpiece to a position between the platens 2 and 11 whereupon the platen 11 is reciprocated to form a screwthread in the workpiece. In known devices, Fig. 1 (not shown), the inclination of the stationary platen 2 and its distance from the reciprocating platen 11 is controlled by four adjustment bolts (e.g. 4 and 5) and two drawbolts (e.g. 7).
Patent GB-509097-A (GB)
Title: A process for the manufacture of lubricating oils
Filed: 1938-09-09
Abstract: 509,097. Lubricating - compositions ; benzal stearic acid. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Sept. 9, 1938, No. 26413. Convention date, Sept. 18, 1937. [Class 91] [Also in Group IV] Ring-sticking is prevented in Diesel engines by adding to the mineral lubricating-oil used therewith a small amount of a salt of a polyvalent metallic or amphoteric element and a higher fatty acid in which an aromatic group is bound to the fatty acid chain, preferably in the alpha-position, by means of an aliphatic chain, preferably not containing more than one double bond and consisting of one or more, preferably at most three, carbon atoms. The said salt may be formed in the oil by adding a salt of a higher fatty acid and a polyvalent metallic or amphoteric element thereto, and an aromatic aldehyde. The magnesium, aluminium, calcium, barium salts of benzal stearic acid are specified as examples. U.S.A. Specification 2,081,075 is referred to.
Patent GB-938716-A (GB)
Title: Purification of olefinic gases containing carbonyl sulfide
Inventor: KARCHMER JEAN HERCHEL
IPC: C07C7/148
Filed: 1961-07-21
Abstract: Olefinic gases containing carbonyl sulphide are freed of carbonyl sulphide by contacting the gas with soda-lime, preferably containing about 0,1% by weight of water.  The soda-lime may be arranged as a bed, for example supported on a carrier material such as kieselguhr, alumina, floridin, or diatomaceous earth, or it may be suspended in the gas, in which case it is preferably of a size of 0,5-100 microns, with the majority in the range of 40-80 microns.  Preferably the gas is first freed of acidic materials, such as H2S, SO2, CO2 and HCN, for example by scrubbing with an aqueous solution of sodium hydroxide, and dried, for example by contacting with activated alumina or activated carbon.  The gas to be purified may be ethylene, and may additionally contain traces of acetylene.
Patent GB-950893-A (GB)
Title: Grease composition
IPC: C08L83/06
Filed: 1961-07-21
Abstract: A grease composition comprises (a) 4 to 95% by weight of a base oil, (b) 5 to 96% of a carboxyalkylpolysiloxane salt of the average general formula: <FORM:0950893/C3/1> where M is a metal, n represents the valence number of the metal and is an integer from 1 to 4, a is equal to 0.001 to 1.0, b is equal to 0.0 to 2.0, and the sum of a and b is equal to 1.0 to 2.5, m is an integer from 1 to 5, and R is one or more monovalent hydrocarbon radicals which may be halogenated, and (c) from 0 to 35% by weight of a thickener such as an inorganic filler or metallic soap. The metal M in the above formula may be Na, Li, K, Mg, Ca, Sr, Ba, Be, Ti, Zr, Mn, Fe, Co, Ni, Cu, Zn, Cd, Al, Sn, Pb, or Sb. The R's may be methyl, ethyl, propyl, butyl, cyclohexyl, chloroethyl, vinyl, allyl, phenyl, chlorophenyl, tolyl or naphthyl, and may be the same or a mixture of two or more of these radicals.  The base oil may be mineral oil or an organopolysiloxane oil corresponding to the average general formula: <FORM:0950893/C3/2> The thickener may be natural clay, carbon black, silica, a metal oxide, or an alkali stearate or octoate. Specifications 839,374, 840,415, 864,681, 950,892 and French Specification 1,118,500 are referred to.ALSO:A grease composition comprises (a) 4 to 95% by wt. of a base oil, (b) 5 to 96% of a carboxyalkylpolysiloxane salt of the average general formula <FORM:0950893/C3/1> where M is a metal, n represents the valence number of the metal and is an integer from 1 to 4, a is equal to 0.001 to 1.0, b is equal to 0 to 2.0, and the sum of a and b is equal to 1.00 to 2.5, m is an integer from 1 to 5, and R is one or more monovalent hydrocarbon radicals or halogenated monovalent hydrocarbon radicals, and (c) from 0 to 35% of a thickener such as an inorganic filler or a metallic soap.  The metal M in the above formula may be Na, Si, K, Mg, Ca, Sr, Ba, Be, Ti, Zr, Mn, Fe, Co, Ni, Cu, Zn, Cd, Al, Sn, Pb or Sb.  The R's in the formula may be methyl, ethyl, propyl, butyl, cyclohexyl, chloroethyl, vinyl, allyl, phenyl, chlorophenyl, tolyl or naphthyl, and may be the same or a mixture of two or more of these radicals.  The base oil may be mineral oil or an organopolysiloxane oil corresponding to the average general formula <FORM:0950893/C3/2> The thickener may be natural clay, carbon black, silica, a metal oxide, or an alkali stearate or octoate.  Specifications 839,374, 840,415, 864,681, 950,892 and French Specification 1,118,500 are referred to.
Patent GB-377839-A (GB)
Title: Improvements in sound ampliflers
IPC: H04R1/34
Filed: 1931-09-23
Abstract: 377,839. Sound amplifiers. KANDERS, H., 18, Rue du Ranelagh, Paris. Sept. 23, 1931, No. 26552. Convention date, Sept. 30, 1930. Addition to 228,905, [Class 13, Bells &c.]. [Class 13.] In a modification of the sound amplifier described in the parent Specification the sound conduit 2 is formed with a lower or outer orifice sufficiently large, e.g. 3 in. to 20 ins. or more in diameter, to enclose the large-dimensioned diaphragm 1 used for electric sound transmission. The conduit 2 may carry a parabolic &c. reflector 4, and may be bell-shaped, tapering, or cylindrical.
Patent GB-241720-A (GB)
Title: Improvements in and relating to agricultural and other implements
IPC: A01B35/02
Filed: 1924-11-07
Abstract: 241,720. Hampson, J. Nov. 7, 1924. Single-tool and multiple-tool machines; rotary-tool implements; frames and handles; tools; wheels, arrangements of; lifting frames.- An implement or machined for cultivating, weeding, cleaning, raking, ploughing, harrowing, banking-up and other purposes comprises a wheeled frame, a pivoted handle, and tools connected to the frame, the handle being adapted to rest on the user's shoulder and being provided with hand grips. A spring may be fastened to the handle and the frame or tools. The frame 6 may be formed from strip steel, the wheel 7 being mounted at the front. The handle 9 is pivoted between the rides of the frame, and may consist of a metal tube having an upper wooden extension fitting into it and adapted to rest on one or both shoulders of the user. It is fitted with adjustable hand grips 17 and may be provided with a sleeve forming a pad for the shoulder. A rear wheel or support 11 may be adjustable vertically and horizontally. Interchangeable cultivating or other tools 12 are secured by a bolt 13. A tension spring 14 is hooked to the middle tine and fastened to an adjustable clip 15 on the handle. The spring raises the tools when pressure on the grips 17 is taken off. An inclined weeding or cutting tool comprises a strip of steel bent upwards and then inwards at the ends for bolting to the frame. It is connected by stays to the front axle. It may be used in combination with the cultivating tools 12. A draw ring 22 is provided. The handle may be pivoted on the wheel axle. Moving tools may be driven irorn the wheel.
Patent GB-207166-A (GB)
Title: Improvements in automobile body construction
IPC: B62D29/00
Filed: 1923-10-25
Abstract: 207,166. Childs, K. L. Nov. 17, 1922, [Convention date]. Bodies for motor vehicles are constructed of a composite material made up of a slightly flexible and yieldable foundation, such as wire mesh a, and layers of yieldable and finishing materials secured to a substantially rigid framing of wood or metal. Superimposed on the mesh a are a layer b of wadding, one or more layers c of strong material such as buckram, and a finishing layer e, preferably of a material at present sold commercially under the registered Trade Mark " Meritas," which may be varnished.
Patent GB-1212140-A (GB)
Title: Improvements in or relating to stop motions for textile machines
Inventor: SCHEFFLER HOLGER
IPC: D04B35/10
Filed: 1969-05-27
Abstract: 1,212,140. Knitting-machines; stop motion. STRICKMASCHINENBAU KARL-MARXSTADT VEB. 27 May, 1969, No. 26775/69. Headings D1C and D1D. A stop motion operated on failure of a thread or on a reduction in its rate of delivery to a circular rib knitting or other textile machine comprises a permanent annular magnet 4 secured to and continuously rotated by a pulley 1 which is driven by the thread wound round it on its passage to the machine. A stationary magnetic casing 6 surrounds the annular magnet 4 and a bell shaped housing 5 freely supported on the pully shaft 2 is interposed between the casing 6 and magnet 4. A contact 9 on the housing 5 is urged into engagement with a contact 8 on the casing 5 under the influence of a coil spring 10. Normally whilst the yarn is being delivered at the desired rate the magnetic influence created by rotation of the annular magnet 4 is sufficient to rotate the housing 5 against the effect of the spring 10, but upon thread breakage or reduction in the rate of delivery, the spring 10 overcomes the magnetic influence to turn the housing 5 in the reverse direction and to bring the contacts 8, 9 into engagement whereby a circuit is completed to stop the machine.
Patent GB-468419-A (GB)
Title: Improvements in and relating to washing machines
IPC: D06F13/02
Filed: 1935-09-27
Abstract: 468,419. Connecting and disconnecting arrangements for toothed gearing. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 27, 1935, No. 26784. Void. Convention date, Oct. 19, 1934. [Class 80 (i)] [Also in Group VIII] By swinging a handle 51 a rack 25 is moved out of engagement with a pinion 24 or is held in engagement therewith. The rack is guided by a bracket 38 pivoted at 39 and provided with a pin 43 which engages a groove 44 in the top of the rack and with a roller 41 which engages the back of the rack. Another pin 42 projecting from the bracket engages a cam slot 46 in the enlarged end of a lever 45 pivoted to a crank arm 49 of the shaft 50 of the handle 51. Clockwise movement of the handle against a spring 52 swings the bracket counterelockwise to disengage the rack from the pinion.