baber/WOPTO huggingface dataset:
Patent GB-412228-A (GB)
Title: Improvements in and relating to cooling systems for dynamo electric machines
IPC: H02K9/18
Filed: 1932-12-20
Abstract: 412,228. Cooling dynamo - electric machines. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Dec. 20, 1932, No. 36130. Convention date, Dec. 21, 1931. [Class 35.] In a circulation cooling system for a dynamoelectric machine having coolers, 10, 11 directly attached to the sides of the machine, a lateral air channel is provided forming two branches 13, 12 leading in an upward and downward direction respectively. The upper branch 13 communicates with a passage 15 at the top of the stator whence air is supplied through junction pipes 16 to the end cover 17. The lower branch 12 communicates with a passage 14 in the base plate in direct connection with the end cover 17 and air from the end cover is forced by fans 5 into pockets 6, through radial slots 7 in the stator and out through outflow chambers 8 arranged alternately with the pockets 6 into the coolers. A single cooler for the two branches or a separate cooler in each branch may be provided. In a modification, the machine is divided axially into three cooling belts. The lower branch cools the two end sections and the central belt draws air from the upper branch by means of a separately driven fan mounted in the centre of the machine. The central belt comprises an annular channel communicating with inflow pockets similar to the pockets 6 in Figs. 1<a> and 1<b>, and outflow chambers similar to the chambers 8 communicating with two annular channels which convey the. air into the coolers. A greater number of cooling belts may be employed.
Patent GB-1079741-A (GB)
Title: Thiopenicillins
IPC: C07D499/58
Filed: 1964-09-03
Abstract: The invention relates to thiopenicillins of general formula <FORM:1079741/C2/1> wherein R1, R2 and R3 are each H, halogen, C1- 10 alkyl or C1- 10 alkoxy and R4 and R5 are H or C1- 10 alkyl and X is sulphur or oxygen, and salts thereof.  The thiopenicillins are produced by reacting a reactive acylating derivative of the 3-carboxylic group of a penicillin of general formula <FORM:1079741/C2/2> wherein R1, R2, R3, R4 and R5 and X have the above meanings, with a source of sulphydryl groups in a non-interfering solvent.  The pencillin reactant may be the acid chloride, acid bromide, anhydride or azolide and this may be reacted with H2S, sodium hydrosulphide or potassium hydrosulphide in an inert solvent such as dimethylformamide in the presence of a base such as triethylamine.  Alternatively, the thiopenicillins are produced by the acylation of 6-aminothiopenicillanic acid (Specification 1,078,077.  Typical thiopenicillins are 6- (phenoxyacetamido) - thiopenicillanic acid, 6 - (a -isopropylphenoxyacetamido) - thiopenicillanic acid, 6 - (phenylmercaptoacetamido) - thio-penicillanic acid and 6-(4-methoxyphenylmercaptoacetamido) thiopenicillanic acid.  The thiopenicillins have antibacterial activity against some penicillin-resistant organisms and are acid-stable.  They may be formulated into pharmaceutical compositions for human or animal use or they may be added to animal feeds.  They may be used for the treatment of mastitis in cattle.ALSO:An animal fed comprises a thiopenicillin as nutritional supplement, said thiopenicillin having the formula:-  <FORM:1079741/A1-A3/1> wherein R1, R2 and R3 are H, halogen, C1-10 alkyl or C1-10 alkoxy, and wherein R4 and R5 are H or C1-10 alkyl and X is sulphur or oxygen; or a salt thereof.  A typical thiopencillin is 6-(phenoxyacetamido)-thiopenicillanic acid and its alkali metal, ammonium and amine salts.
Patent GB-828532-A (GB)
Title: An improved electric timing device
IPC: G04F3/06
Filed: 1954-12-25
Abstract: 828,532. Time switches. WENDER, E. J. March 26, 1956 [Dec. 25, 1954], No. 36203/57. Divided out of 828,531. Class 38 (5). A process timer comprises a knob 21 secured to a collar 28 carrying a stop 38 which can be rotated relatively to a micro-switch 40 to preset a time interval. The switch is normally held open by an arm 36 secured. to a clutchplate 35 rotatable in one direction about a rod 30 by a spring 37 and in the reverse direction by a clutch-plate 32 driven by a motor 34. The clutch-plate 32 is normally urged upwards into engagement with plate 35 but can be depressed away therefrom to start a timing operation by momentary depression of the rod 30. This releases the plate 35 which is rotated by spring- 37 until arm 36 abuts stop 38. The switch 40 thus closes to energize the motor which on release of the rod 30 returns the clutch plate 35 and arm 36 to open the switch at the end of the desired time interval. The load is connected in parallel with the motor.
Patent GB-825451-A (GB)
Title: Improvements in detectors of oil mists and other light obscuring fluids
Inventor: MATHISEN ANDERS
IPC: G01N21/53
Filed: 1955-12-17
Abstract: 825,451. Photo-electric detection of oil mists. GRAVINER MANUFACTURING CO. Ltd. Dec. 14, 1956 [Dec. 17, 1955], No. 36242/55. Class 40 (3). Gas from a diesel engine crankcase is drawn by fan through a detector chamber where the presence of lubricating oil mist varies the light falling on a selenium barrier cell, the detector being capable of isolation from the space to be monitored to allow mist-free gas to be drawn through the detector to check its operation. In the circuit in Fig. 4 power is supplied at plug PL1 to feed the lamp L3 which illuminates the photo-electric cell 12 and the lamp L4 which illuminates a comparison cell 23. The outputs of these cells are fed in opposition to the moving coil relay MC/1 and the microammeter MC2. Sensitivity is adjusted by resistor R2, while resistor R3 zeroes the meter. When mist passes between the light L3 and photo-cell 12 an indication of the current change will be given at MC2. At a predetermined level the current through relay MC/1 will close contact MC1 and energize relay B/3 causing contact B1 to change and light the red warning lamp L2. An audible alarm is sounded by closure of contact B2. The fan is cut off by opening of contact B3. Rectifier RECT1 prevents arcing at contact MC1. To reset, the switch PB1 is pressed to bring " kick-off" coil KO into circuit to open contacts MC1. After isolation, mist-free gas is passed through the chamber to test its operation by means of either a manually operated spring valve (Fig. 2, not shown) or a suction pipe. Applications to the detection of vapour mists in air conditioning, refrigerating and gas cooling systems are referred to.
Patent GB-171916-A (GB)
Title: Rock drilling machine
IPC: E21B3/00
Filed: 1920-12-29
Abstract: 171,916. Hundrieser, H. Dec. 29, 1920. Drilling-machines; drills.-A tubular rock drill c is rotated by either of two bevel pinions i, h, a nut d on the central fixed spindle b being simultaneously rotated so as to feed the drill. The end of one of the pinion shafts is guided so as to be prevented from rotating as the housing k advances with the drill. The larger pinion i is used for withdrawing or for giving a quicker feed in soft rock. The stepped formation e is to accommodate drills of different sizes.
Patent GB-635565-A (GB)
Title: Improvements in or relating to drying apparatus
IPC: G03D15/02
Filed: 1946-12-09
Abstract: 635,565. Electric heating. BAKER, T. T., and DIXON & CO., Ltd., T. H. Dec. 9, 1946, No. 36352. [Class 39 (iii)] [Also in Group XIII] Coated photographic paper or film a is dried, on passage from a coating machine, in a closed chamber c where it is exposed to radiation from infra-red lamps f, air of controlled humidity and temperature being circulated in the chamber. The lamps f at the top of the chambers yield a long infra-red wave length and are more closely spaced at the centre. The black heat may be obtained from resistance wire spirally wound on' rods, photographically active rays being excluded by filters. Metal gauze is suspended between the lamps and the conveyer d on which the strip a is passed through the chamber.
Patent GB-1276597-A (GB)
Title: Voltage rectifier and multiplier
Inventor: KING WILLIAM L
IPC: H02M7/10
Filed: 1970-07-27
Abstract: 1276597 Voltage-multiplying rectifiers N. E. KNECHT 27 July 1970 36352/70 Heading H2F A voltage-multiplying rectifier comprises three-phase input terminals 30a, 30b, 30c and output terminals 40, 42 interconnected by circuits substantially as shown comprising capacitors 46, 48 and diodes 44, 50, 52, 54 Fig. 1 (not shown) relates to a known singlephase rectifier comprising diodes in opposite arms of a bridge with capacitors in the remaining arms and which produces a rectified output the peak value of which is equal to three times that of the input but having a ripple equal to the peak-peak value of the input.
Patent GB-1349285-A (GB)
Title: Fluid operated piston and cylinders
IPC: F15B15/26
Filed: 1971-08-04
Abstract: 1349285 Fluid operated actuators HANS HOLLAND GmbH 4 Aug 1971 [7 Aug 1970] 36579/71 Heading F1D A fluid operated piston 9 and cylinder 6 in which a spindle 1 is rotatably mounted in an end 3 of the cylinder 6 and threadingly engages an internal bore 10 in the piston 9, includes a support base 2 rigidly attached to the spindle 1 such that it can engage the end 3 to prevent rotation of spindle 1 due to friction between the surfaces of base 2 and end 3, such constraint of the spindle serving to lock the piston 9 in any required position. During operation fluid, preferably oil, is fed to an annular recess 4 in an end part 3a to force base 2 and end 3 apart and create a "hydrostatic bearing" effect. This permits the spindle 1 to rotate whilst the piston moves back and forth. To lock the piston 9 in any position, fluid is exhausted from the annular recess 4 to allow the base 2 and end 3 to engage and thus prevent spindle rotation. When piston 9 moves leftwards, it pulls base 2 away from end 3 thus obviating the need to feed oil to recess 4.
Patent GB-785854-A (GB)
Title: Improvements in or relating to wide-span building construction
IPC: E04B7/12
Filed: 1955-12-23
Abstract: 785,854. Roofs and rooflights. SILBERKUHL, W. J. Dec. 23, 1955 [Dec. 29, 1954], No. 36876/55. Classes 20(3) and 20(4) A roof for wide-span buildings, comprises arched roof trusses 4 surmounted by windows, and roofing elements 7 extending from the top of the window frames on one truss to the next adjacent truss itself, the elements 7 being shaped to conform to the arched form of the trusses 4. As shown the trusses 4 are of rolled H-section and the ends of each truss are connected by a tie 9. Glazing bars 5 extend radially outwards from each truss 4 and support curved upper window frames 6. The roofing elements 7 are cylindrical or spherical in shape and may be of pre-fabricated reinforced concrete or of concrete laid in-situ.
Patent GB-1493758-A (GB)
Title: Nickel-based alloy
IPC: C22C19/05
Filed: 1976-09-07
Abstract: 1493758 Ni-base alloy G V ZHURKINA G E MOSKALENKO F F KHIMUSHIN N F LASHKO K P SOROKINA T M GREBTSOVA and E M KONTSEVAYA 7 Sept 1976 36978/76 Heading C7A A nickel based alloy suitable for use as sheets, rods and washers in welded structures consists of: C 0À05-0À1 Cr 15À0-18À0 Co 10À0-17À0 Ti 1À8-2À5 Al 2À8-3À5 W 2À5-5À0 Mo 6À0-7À5 Y 0-0À2 B 0À005-0À02 Mg 0À005-0À05 Ce 0À005-0À02 Ni Balance where Ti Al = 2À3. The alloy gives an optium carburation of ductility, weldability and high temperature S/R resistance.
Patent GB-895929-A (GB)
Title: Roll stand and control system for rolling to close tolerances
IPC: B21B37/64
Filed: 1960-10-31
Abstract: 895,929. Rolling. MOELLER & NEUMANN G.m.b.H. Oct. 31, 1960 [Nov. 5, 1959]; No. 37295/60. Class 83 (4). In a rolling mill required to operate with close thickness tolerances, the frame parts such as tierods 3, Fig. 3, are hydraulically stressed under tension by amounts which are automatically controlled according to the roll pressure so that the total tension and elongation in the tie-rods remains substantially constant. In one example in which the tie-rods 3 are tubular and elongated by internal hydraulic pistons 10 through thrust rods 11, the roll pressure as measured by transmitters 26 under the clamping nuts 9 and indicated at 31 is added by a computor 32 to the corresponding hydraulic pressure in the pistons 10 as indicated at 33. The total is compared in the computer 32 with a pre-set value to produce a signal indicated at 37 which is passed to a regulator 38 and re-sets the pressure in the piston 10 to maintain constant tension in the tie-rods 3. The pre-set signal, which is set manually at control 43 may have a superimposed correction for roll flexure under load and is provided by a computer 44 controlled in dependence of the roll pressure. Further corrections may be made according to measured values of thickness by signals from instruments disposed after the stand. In order to prevent sudden changes in thickness due to the response time of the system during multipass rolling when a new core enters the rolls, photo-cells 45-47 are placed in front of the mill at distances corresponding to the response time and detect the approaching core ends. The photo-cells act through devices 48-50 to reduce the hydraulic pressure by predetermined increments, equivalent to the roll pressure changes. The roll gap is initially set by annular screw-downs 22, 23, the upper member 22 being rotatable through a gear 24. Springs 13 between the lower screw-down member 23 and the lower roll chock 21 maintain the rolls and frame parts in a separated condition against the clamping nuts 9. In modifications the hydraulic piston and cylinder assembly 12, 16, Fig. 2, may be annular and disposed concentrically of solid tie-rods 14. When the automatic hydraulic pre-stressing system is not required, spacers (not shown) may be placed between the roll chocks or frame parts so that the stand parts are prestressed to reduce elongation.
Patent GB-1197727-A (GB)
Title: Improvements in or relating to Moulding.
Inventor: TAYLOR JOHN JALLAND
IPC: B29C33/42
Filed: 1966-08-20
Abstract: 1,197,727. Moulding footwear. BRITISH UNITED SHOE MACHINERY CO. Ltd. 21 Aug., 1967 [20 Aug., 1966], No. 37406/66. Heading B5A. At least part of the surface of a mould cavity for use in the moulding of shoe bottoms is constituted by a piece of flexible sheet material secured to one of the mould members. The invention is applied to the injection moulding of p.v.c. shoe soles on to lasted uppers. In one example vulcanized rubber inserts 16, 20 are secured by adhesive in recesses 14, 18 in a sole mould member 4. The inserts can be replaced by others if a different tread pattern is required. In a modification (not shown) the patterned sheet material extends all over the surface of the sole, the recesses in the sole mould member being omitted. In a further modification (Fig. 3, not shown) the flexible sheet material (50) has a cut-out portion receiving a correspondingly shaped insert 56 having a different pattern.
Patent GB-1074247-A (GB)
Title: Process for producing n-monocyclic hydrocarbon-substituted cyclohexylamines
Inventor: LUVISI JOHN PAUL
Filed: 1964-09-14
Abstract: A process for producing an N-monocyclic hydrocarbon substituted cyclohexylamine having 6 carbon atoms in the cyclic portion of the monocyclic hydrocarbon comprises reacting a nitrohaloaromatic compound having the formula <FORM:1074247/C2/1> where X = chlorine or bromine, n = 1-3 and R = H or a C1- 3 alkyl group with hydrogen at a temperature in the range from 30 DEG  to 250 DEG  C. at a pressure in the range from 2 to 200 atmospheres and in the presence of a catalyst comprising a noble metal of the platinum group and a solvent selected from the aliphatic carboxylic acids having from 1 to 8 carbon atoms per molecule, benzyl alcohol and the aliphatic alcohols having from 1 to 6 carbon atoms and recovering an N-monocyclic hydrocarbon-substituted cyclohexylamine from the resultant reaction mixture.  In typical processes N-cyclohexylaniline is obtained by reacting o-nitrochlorobenzene with hydrogen in the presence of a palladium-on-charcoal catalyst and glacial acetic acid and dicyclohexylamine together with cyclohexylamine is obtained by reacting p-nitrochlorobenzene with hydrogen in the presence of a platinum on alumina catalyst and ethyl alcohol. Many additional starting materials, catalysts and solvents are specified. Examples are furnished.
Patent GB-761224-A (GB)
Title: Improvements in or relating to bearing seal
IPC: F16C33/78
Filed: 1954-12-28
Abstract: 761,224. Stuffing-box substitutes. NORTHERN TRUST CO. Dec. 28,1954,No. 37465/54. Class 122 (5). [Also in Group XXXIV] In a sealed bearing, each seal comprises a first sealing ring 32, secured within the outer race 18, having a portion 32b extending towards the inner race 22 and a portion 32c extending axially outward in substantially parallel spaced relation from the inner race, and a second sealing ring 26 secured on the inner race 22 and having a base 33a extending under the portion 32c of the first sealing ring and an inwardly sloping flange 33b extending toward the outer race 18. The ring 32 has a peripheral portion 32a pressfitted in the outer race 18. In a modification, a sealing-ring 43, corresponding to the ring 32, is provided with a cross-web 45b, Fig. 5. Alternatively the ring 43 carries a resilient ring 49 which contacts the second ring 44 and is preferably composed of synthetic rubber, Fig. 6. In another modification, Fig. 4, an inner ring 39 is snapped in a groove 37 in the outer race and the rim of the outer sealing ring 26a co-operates with a counterbore 38 in the outer race.
Patent GB-523080-A (GB)
Title: Manufacture of unsaturated esters
IPC: C07C69/52
Filed: 1938-12-23
Abstract: 523,080. Esters. GUDGEON, H., HILL, R., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 23, 1938, No. 37506. [Class 2 (iii)] Esters of the general formula CH 2 :CHÀCH:CHÀCOOR, where R is alkyl or alkoxyalkyl, are made by heating alkyl- or alkoxyalkyl-α-acyloxy-#- ethylidene propionates in gaseous or vapour form, at temperatures of 350‹ to 600‹C. The α-acyloxy-#-ethylidene propionates are obtained by acylating the corresponding α- hydroxy-#-ethylidene propionates with an aliphatic or aromatic mono-carboxylic acid ; the α-hydroxy-#-ethylidene propionates, of the general formula CH 3 ÀCH.CH OHÀCHÀCOOR, are themselves made by reacting crotonaldehydecyanohydrin with water, hydrochloric acid, and an alcohol of the formula ROH. In examples, (1) 1-carbomethoxy-1:3-butadiene is made by heating methyl α-acetoxy-#-ethyldene propionate, (2) 1-carbobutoxy-1:3-butadiene is made from n-butyl α-acetoxy-#-ethylidene propionate, (3) 1-carbethoxy-1:3-butadiene is made from ethyl α-acetoxy-#-ethylidene propionate, and (4) the #-ethoxyethyl ester of 1-carboxy-1:3- butadiene is made from #-ethoxyethyl α- acetoxy-#-propylidene propionate.
Patent GB-507891-A (GB)
Title: Improvements in variable leverage mechanism for vehicle brakes
IPC: B61H13/32
Filed: 1938-12-28
Abstract: 507,891. Brake-operating mechanism. SVENSKA AKTIEBOLAGET BROMSREGULATOR. Dec. 28, 1938, No. 37651. Convention date, Dec. 31, 1937. [Class 103 (i)] Variable-leverage brake-operating mechanism for vehicles comprises a number of tie-rods 4, 5, 6 connecting a pair of levers 2, 3 and capable of idle motion with respect to one lever 3 and pairs of co-operating abutments mounted respectively on the tie-rods and on parts secured to the lever 3 adapted selectively to be positioned for engagement to reduce the idle motion and thus to render one or other of the tie-rods effective to obtain the desired leverage. The idle motion is provided by slots 7 in the tierods through which pass pins 8 on the lever 3. The abutments for each tie-rod comprise a nut 11 on An extension 10 of the rod having a pair of Sector-shaped projections 9 adapted to engage similar projections 13 on a sleeve 12 rotatably secured to a forked member 15 attached to the lever 3 by the pin 8. Each sleeve has an arm 16 and the several arms are linked together and connected by linkage 17, 18, 19, 22 and toothed sectors 23, 25 to a common handle 24 whereby the projections 13 of any one of the sleeves can be set opposite to the corresponding projections 9 for engagement therewith to reduce the idle motion of the corresponding rod, while the projections associated with the other rods are so positioned that the projections 9 can pass between the projections 13 and are thus ineffective. The levers 2, 3 are operated by a fluid-pressure cylinder 1, the lever 3 being a " dead " lever. Specification 426,779 is referred to.
Patent GB-1055595-A (GB)
Title: Improvements relating to gain control circuits
Inventor: BRAY DEREK
IPC: H03G1/02
Filed: 1962-10-05
Abstract: 1,055,595. Manual gain control; remote control of gain. ELECTRIC & MUSICAL INDUSTRIES Ltd. Oct. 4, 1963 [Oct. 5, 1962], No. 37700/62. Headings H3Q, H3T and H4R. A gain-control circuit for a television amplifier comprises first and second diodes connected in parallel paths for signal currents across the amplifier input terminals and means for current biasing the diodes, the biasing current of one diode being stabilized and that of the other being variable so that the ratio of the dynamic impedance of the diodes and hence the ratio with which the signal currents divide between them may be varied, the signal current flowing through the stabilized diode also constituting the input current for an input transistor of the amplifier. This latter diode may in fact be the base-emitter diode of the input transistor. In the circuit of Fig. 1 the current through diode 3 is varied by adjustment of variable resistor 6, line 7 being returned to a point of negative potential. The current through the baseemitter diode of the transistor is stabilized by means of direct-current feedback from collector to base through resistor 14. In Fig. 2 (not shown) the direct-current feedback is applied instead through an emitter-follower stage 15, the difference in voltage levels being compensated by Zener diode 16. Transistor 15 also serves as a common-emitter stage in cascade with transistor 4, the output being delivered at 13. In Fig. 3 (not shown) the stabilized current for the base-emitter diode of transistor 4 is supplied from a Zener diode 18 in conjunction with resistor 17 by-passed for signal currents by a large-valued capacitor 19. To permit a smaller value of capacitor 19 to be used, Fig. 4 (not shown), a separate stabilized diode 20 may be used, the current therefor being supplied from the Zener diode 18 through resistor 17 which is no longer in the signal path. Capacitor 19 which couples diode 20 to the emitter of input transistor 21 is connected in a negative feedback path from the output transistor 23, so permitting the use of a smaller capacitor than would otherwise be the case. It is stated that the invention is particularly suited to the remote gain control of an amplifier for television video signals.
Patent GB-928177-A (GB)
Title: Sheep dips
Inventor: RIEKIE DAVID MILES
Filed: 1960-11-04
Abstract: An animal dip in the form of a stable water emulsifiable liquid comprises D.D.T. or Diazinon as an active ingredient, one or more emulsifying agents, a zinc salt of an organic carboxylic acid which salt is soluble in water immiscible organic solvents, and a water-immiscible organic solvent.  The compositions may contain other pesticides, e.g. B.H.C., aldrin, dieldrin or rotenone. Specified emulsifying agents are ethylene oxide-alkyl phenol such as nonyl phenol condensates and salts, e.g. the calcium salt of dodecyl benzene sulphonic acid.  Specified water immiscible solvents are those derived from petroleum or coal sources, e.g. mixed methyl naphthalene fractions, "Edmor" (Registered Trade Mark) and cyclohexanone.  Specified zinc salts are zinc oleate, zinc ricinoleate and zinc naphthenate.  Other additions include alkylene oxides such as ethylene oxide.