baber/WOPTO huggingface dataset:
Patent GB-557616-A (GB)
Title: Improvements in or relating to temperature control apparatus
IPC: G05D23/12
Filed: 1942-01-13
Abstract: 557,616. Thermostatic valves. WORTH, W. Jan. 13, 1942, No. 535. Convention date, Jan. 4,1941. [Classes 64 (ii) and 64 (iii)] In apparatus for controlling the circulation of engine lubricating oil through a cooler by a valve 52 operated by an expansible bellows 46, means are provided whereby the valve is moved to the closed position on failure of the bellows, thereby ensuring that the oil passes through the cooler 16 and not through the by-pass 18. The upper -end of the bellows is closed by a plate 56 having an extension 60 pressed downward by a spring 64 against a stop 62. The maximum closing force exerted by the bellows is limited by the spring 64. Two springs 76, 82 are provided within the bellows, one confined between a plate 84 and the valve, and the other between plate 84 and the flanged end of a retainer 72 attached to the plate 56. Upward movement of plate 84 is normally prevented by a spring clip 86 engaging a recess 78 in the post 70. The bellows is charged with ethyl chloride at a pressure such that the valve keeps open below the maximum temperature desired, due to the pressure of spring 76, the spring 82 being normally inoperative. If leakage of the bellows occurs, the spring 76 causes a further retraction of the bellows and the spring clip 86 comes into contact with the plate 56 so that it is released from the recess 78 and the plate 84 is released. The spring 82 is thereby enabled, by pressure against the plate 84 in contact with plate 56, to force the valve on to its seat and close the by-pass 18. Since the bellows is normally subjected to the action of both the warm and cooled oil, it responds to the average temperature. In a modification, Fig. 4 (not shown). the spring 82 is omitted and means are provided whereby if leakage occurs in the bellows, the stop 62 is released and spring 64 closes the valve.
Patent GB-764110-A (GB)
Title: Production of cyanobenzene carboxylic acids
IPC: C07C255/57
Filed: 1955-01-07
Abstract: A process for the production of cyanobenzene carboxylic acids comprises oxidizing benzonitrile having at least one and not more than three of its nuclear hydrogen atoms substituted by an alkyl radical containing from 1 to 3 carbon atoms in liquid phase by contacting it with a gas-containing elemental oxygen at a temperature in the range 300 DEG  to 500 DEG  F. optionally at elevated pressure. The cyanobenzene carboxylic acid may be separated from the unreacted alkyl benzonitrile by extraction with aqueous alkali, or by fractional crystallization or distillation and unconverted alkyl benzonitrile may be recycled to the oxidation process.  Suitable starting materials include tolunitriles, dimethylbenzonitriles, methyl ethyl benzonitrile, diethyl benzonitrile and trimethyl benzonitrile.  In examples: cyanobenzoic acid is produced by blowing air into a heated mixture of tolunitrile isomers containing cobalt naphthenate.  Other catalysts mentioned are multivalent metals capable of changing their valencies at the reaction temperatures employed, especially in the form of salts appreciably soluble in the charging stock, e.g. oil-soluble compounds of cobalt, e.g. the toluate. manganese, chromium, nickel and lead (1); the above process is repeated in the absence of a catalyst (2); 5-cyano-isophthalic acid and 5-cyano-3-methyl benzoic acid are produced by oxidizing by the process (1) 1-cyano-3,5-dimethyl benzene (3); cyanobenzoic acid, with some 3-cyanoacetophenone and methyl (3-cyanophenyl) carbinol by similarly oxidizing 3-ethyl cyanobenzene (4); cyanobenzoic acid is obtained similarly by oxidation of isopropyl cyanobenzene. Tolunitriles are prepared by oxidizing mixed xylenes in the liquid phase with air at elevated temperatures, separating the toluic acids produced and passing the toluic acids with ammonia over a dehydration catalyst such as alumina at elevated temperature. Dimethyl benzonitriles are similarly prepared, using the C9 fraction of catalytically reformed naphtha as starting material.
Patent GB-971711-A (GB)
Title: Improvement of feeding stuffs
IPC: A23K1/18
Filed: 1961-01-06
Abstract: Feeds for pigs and other non-ruminants contain a minor amount, 5-50 g. per ton, of beta-propionic acid or an alkali or alkaline earth metal salt thereof.  The addition is conveniently made with the acid of a premix in bone meal, calcium carbonate, sodium chloride, wheat bran, wheat flour, potato starch or milk powder.
Patent GB-454747-A (GB)
Title: Process for the manufacture of dihydro-desoxymorphine d
Filed: 1936-01-08
Abstract: Dihydro - desoxymorphine D is mainly obtained when the hydrogenation of dichloromorphine is effected either with noble metal catalysts in such dilute neutral or acid solution that the products remain dissolved, or in alkaline solution in the presence of base metals as catalysts.  According to the examples: (1) morphine is heated with concentrated hydrochloric acid and the resulting dichloromorphine then hydrogenated in very dilute neutral or weakly acid solution at room temperature using a palladium-barium sulphate catalyst; (2) dichloromorphine hydrochloride is dissolved with potassium hydroxide in water and hydrogenated in the presence of nickel at ordinary temperature.
Patent GB-1361922-A (GB)
Title: Process for purifying lactams
IPC: C07D201/16
Filed: 1972-01-06
Abstract: 1361922 Purification of lactams INVENTA AG 6 Jan 1972 [6 Jan 1971] 680/72 Heading C2C Impure lactam is purified by subjecting it to crystal extraction at 10-40‹ C. using, as extraction agent, an aliphatic or cycloaliphatic hydrocarbon having 5 to 10 carbon atoms and to distillation under reduced pressure, in either order. When the crystal extraction step precedes the distillation step, the lactam may be introduced into the extraction agent in flake or molten form and the weight ratio of lactam to extractant is preferably from 1 : 1 to 1 : 6; the crystal extraction is suitably conducted for a period of 5-60 mins.. The extraction agent may be recovered from the mother liquors resulting from the crystal extraction step by distillation or by washing with water and may then be recycled. Lactam may be recovered from the aqueous distillate produced in the early part of the distillation by extracting the aqueous distillate with benzene or toluene, and recycling the recovered lactam to be mixed with impure lactam to be purified. The distillation step under reduced pressure is preferably conducted in the presence of sodium hydroxide. In examples caprolactam and laurolactam are purified.
Patent GB-643397-A (GB)
Title: Electromagnetically shiftable switch
IPC: H01H51/08
Filed: 1948-01-09
Abstract: 643,397. Electromagnetic switches. AKTIEBOLAGET HG. RELAY PATENT. Jan. 9, 1948, No. 728. Convention date, April 18, 1947. [Class 38(v)] In an electromagnetic switch wherein successive energizations of a magnet 1 move an armature 8 alternately to and fro between two extreme positions, the magnet has two pole pieces 15, 16 and each energization moves the armature by its momentum past the nearer pole piece and through a dead-centre position between the pole pieces into a position opposite the farther pole piece. On de-energization, gravity or a spring carries the armature through the remainder of its travel into the other extreme position. In the form shown in Fig. 1, the gravity controlled armature 8 is pivoted at 9 and carries a mercury switch 3 and the parts move into the dotted position on energization of the magnet. In Fig. 5 the armature 20 is controlled by a deadcentre spring 23 and operates two sets of contacts alternately.
Patent GB-1405855-A (GB)
Title: Azo compounds and fabrics fibres and yarns dyed therewith
IPC: C09B29/44
Filed: 1973-01-05
Abstract: 1405855 Azo dyes EASTMAN KODAK CO 5 Jan 1973 [7 Jan 1972] 743/73 Heading C4P New disperse mono- and dis-azo dyes of formula wherein R<SP>1</SP> is hydrogen, halogen or cyano; R<SP>2</SP> is lower alkylsulfonyl; lower alkylsulfonyl substituted with cyano, hydroxy, cyclohexyl or aryl; lower alkoxycarbonyl; lower alkoxycarbonyl substituted with lower alkoxy, lower alkanoyloxy, cyano, halogen or aryl; cyano: -SO 2 NR<SP>9</SP>R<SP>10</SP>; CONR<SP>9</SP>R<SP>10</SP>; or arylazo; R<SP>3</SP> is hydrogen or halogen; R<SP>4</SP> is methyl or, when R<SP>5</SP> and R<SP>6</SP> each is hydrogen, R<SP>4</SP> is lower alkyl ; R<SP>5</SP> and R<SP>6</SP> each is hydrogen or methyl; R<SP>7</SP> is hydrogen or lower alkyl; and R<SP>8</SP> is alkyl containing one to eight carbon atoms or lower alkyl substituted with hydroxy, -CONR<SP>9</SP>R<SP>10</SP> or in which R<SP>9</SP> is hydrogen, lower alkyl, cyclohexyl or aryl; R<SP>10</SP> is hydrogen or lower alkyl; or R‹ and R<SP>10</SP> taken together represent pentamethylene or ethyleneoxyethylene; R<SP>11</SP> is hydrogen, lower alkyl or lower hydroxyalkyl; R<SP>12</SP> is aryl, cyclohexyl, furyl, lower alkyl or lower alkyl substituted with hydroxy, lower alkoxy, cyano, halogen, aryl or aryloxy; X is -CO-, -COO- or -SO 2 -; and each aryl moiety referred to is phenyl or phenyl substituted with lower alkyl, lower alkoxy or halogen, are prepared by azo coupling using appropriate tetrahydroquinoline coupling components. The dyes are used to colour hydrophobic materials such as polyester, synthetic polyamide, acrylic and cellulose ester fibres in orange, red, reddish-brown and violet shades.
Patent GB-241059-A (GB)
Title: Improvements in mops
IPC: A47L13/255
Filed: 1925-01-09
Abstract: 241,059. Crolly, A. H. Jan. 9, 1925. Holders with clamping-devices for mops.-Mop strands 4 are bent over a grooved ring or endless strip 2, which is secured to a body portion 1 by nails or like fastening means 5, the heads of the nails being located in the groove in the ring. The mop may be assembled by means of a hollow holder 10, Fig. 4, over which the ring is placed, and in which holes are formed to receive the nails. By means of a lever, push rods are actuated to drive the nails simultaneously through the ring 2 and mop strands into the body portion 1.
Patent GB-1096092-A (GB)
Title: Thermal method of recovering liquid hydrocarbons from underground deposits
IPC: E21B43/24
Filed: 1966-01-07
Abstract: 1,096,092. Wells &c. EQUITY OIL CO. Jan. 7, 1966 [July 16, 1965], No. 879/66. Heading E1F. Hydrocarbons are recovered from underground deposits by introducing heated natural gas into the deposit at a temperature to render the hydrocarbons mobile. The injection is at a pressure and temperature sufficient to raise the temperature of the hydrocarbons above the dew point, and preferably above the minimum temperature that assures the hydrocarbons are vapourized. The heated natural gas is injected through an insulated well and heated gas and hydrocarbons are produced from further insulated wells. The heated gas produced is separated from the produced hydrocarbons and is recirculated into the deposit through the injection well. As the injected gas dilutes the hydrocarbons in the deposits the temperature of the injected gas is decreased. The process may be used for primary, secondary or tertiary recovery, and may be used after water flooding.
Patent GB-574337-A (GB)
Title: Improvements in or relating to oil-scraper rings for pistons
IPC: F16J9/20
Filed: 1944-01-18
Abstract: 574,337. Oil-scraper rings. BAILEY, R. W. H. Jan. 18, 1944, No. 968. [Class 122 (i)] The contacting surfaces of a pair of oilscraper rings 17, 18 disposed in a single groove 14 in a piston are so shape that the outer limit of the area of contact between them is on a circle of substantially less diameter than the external diameter of the rings, and the peripheral surface of each of the rings is formed with a small taper 19 of about 1‹ to the axis of the rings, making the extreme diameter of its top edge less than that of its bottom edge. The taper terminates short of the bottom edge of the ring leaving the lower part of the surface cylindrical. A flat contacting surface 22 on one ring contacts with a convex surface on the other ring, the convex surface being formed from a flat medial portion 24 between conoidal marginal portions 25, 26. Oil can pass through spaced recesses 27 in the convex surface and escape to the interior of the piston through drainage passages 15.
Patent HK-47594-A (HK)
Title: Safety interlock system for medical fluid pumps
Inventor: PASQUALUCCI JOSEPH
IPC: A61M5/14
Filed: 1994-05-12
Abstract: A medical fluid delivery set is provided with a magnetic field source (30) in the region of its mounting (24) to a fluid flow control apparatus (10). The flow control apparatus (10) includes a magnetic field sensitive switching component (32) which detects the proper placement of the delivery set (18, 19, 16) on the flow control apparatus (10) and prevents operation of the fluid delivery system unless a set is in proper position.
Patent HK-57994-A (HK)
Title: Electronic cash register
Inventor: MUNAKATA KAZUHIKO OMRON TATEIS
IPC: G07G1/12
Filed: 1994-06-04
Abstract: An electronic cash register beforehand stores data on discount concerning commodities to which an in-­store marking is attached. An bar code as an in-store marking attached to a commodity is read. In accordance with this reading, data on a discount corresponding to the department code contained in the bar code is read, a discount is made on the unit price data contained in the bar code on the basis of the data on the discount, and the discounted price data is registered.
Patent HK-71596-A (HK)
Title: Personal computer memory bank parity error indicator
Inventor: CAPPS LOUIS BENNIE
IPC: G06F11/10
Filed: 1996-04-25
Abstract: A personal computer has two memory banks (12,14) respectively connected to two parity check units (16,18) operative to detect parity errors. Upon doing so, each unit (16,18) feeds a parity error signal to a separate latch (22,24). The latches (22,24) are connected to a logic circuit (26) which is in turn connected to an interrupt controller (34) that initiates an interrupt (36) when a parity error occurs. One latch (22) is further connected to a check bit (41) of a register (40) of an I/O port (38) and the check bit (41) is set by the one latch (22). An interrupt handler reads the register and provides messages indicating which memory bank (12,14) caused the parity error.
Patent HU-T56558-A (HU)
Title: Process for producing oxetanones
Inventor: KARPF MARTIN
IPC: C07D/
Filed: 1991-02-20
Abstract: The invention relates to a novel process for producing a compound having the formula    <IMAGE>  I  wherein R1, R2 and X are described herein, via corresponding  beta -keto- and  beta -hydroxy- delta -lactones, as well as novel intermediates which occur in the process.
Patent JP-H02181190-A (JP)
Title: Vector font representation system
Inventor: HASEBE MIKIO
IPC: G09G5/26
Filed: 1989-01-05
Abstract: PURPOSE:To reduce the amount of font data on the whole by correcting the display or print positions, etc., of characters, symbols, etc., according to information regarding a character set taken out by an information extracting means. CONSTITUTION:The information extracting means of a control part 1 reads the vector font data containing the information regarding the character set corresponding to the characters, symbols, etc., to be displayed or printed out of a vector font storage part 3 to extract and pass the information regarding the character set to the correcting means of the control part 1. When the characters, symbols, etc., represented by the vector font data indicating character shapes are displayed on a display part 9 or printed, the correcting means corrects the display or print position, etc., of the characters, symbols, etc., according to the information on the character set which is extracted by the information extracting means. Consequently, the amount of the font data can be reduced on the whole.
Patent JP-H01178797-A (JP)
Title: Electric fan
Inventor: WATANABE KUNIO
IPC: F24F11/02
Filed: 1988-01-04
Abstract: PURPOSE:To make it possible to send the current of the electric fan in the caption in response to the motion of a user by setting a predetermined drive time for a sensor operation, longer than the predetermined drive time when the sensor operation is to be performed without an input from a time setting means. CONSTITUTION:When a timer switch 13 is operated for sleeping or the like and its input is sent to a control circuit 27 and an input from a sensor operation starting switch 12 is also sent thereto, the control circuit 27 sets a predetermined drive time T in a timer circuit 28 to the second time T2. That is, the predetermined time of a motor 5 is set longer than that at a normal sensor operation. Therefore, the drive time of a motor 5 becomes longer that that at the normal sensor operation, so that the drive/stop time of the motor 5 becomes shorter. Consequently, the current of the electric fan can be sent in response to the motion of a user, so that the quantity of the current against the user can be reduced.
Patent JP-H09186464-A (JP)
Title: Multilayered board
Inventor: NISHIYAMA TAKAYOSHI
IPC: H05K3/46
Filed: 1996-01-05
Abstract: PROBLEM TO BE SOLVED: To decrease the effect of noises when high-frequency electrostatic noises are superimposed on a conductor layer by providing a cutout part at a part corresponding to a region, where the circuit pattern of the control system of a layer neighboring the conductor layer is formed. SOLUTION: A conductor layer 22 is provided on one surface of an insulating board 20. The conductor layer 22 has a cutout part 22a, which is cut at a part of the conductor layer. In the meantime, circuit patterns 23 and 24, which are separately arranged in two regions, are formed on one surface of an insulating board 21. That is to say, the circuit pattern 23 is the pattern, which is utilized when the circuit that is liable to receive the effect of the noises of the circuit of the control system and the like is constituted. The circuit pattern 23 is arranged in a region 21a facing the part of the cutout part 22a of the conductor layer 22 when the boards 20 and 21 are overlapped. Therefore, the stray capacitance present between the circuit pattern 23 and the conductor layer 22 becomes very small. Therefore, even if the high-frequency electrostatic noises are superimposed on the conductor layer 22, the noise level transmitted to the circuit pattern 23 is very low, and there is no effect on the circuit.
Patent JP-H01179386-A (JP)
Title: Manufacture of semiconductor laser
Inventor: SANEHIRA KIYOSHI
IPC: H01L21/208
Filed: 1988-01-06
Abstract: PURPOSE:To remove a cap layer with certain and avoid the crack development of a wafer as well as the dispersion of the thickness of the wafer which come about on the occasion of polishing the substrate surface of the after, by making the cap layer grow in the liquid phase epitaxial way with the use of the melt of GaAlAs where a mixed crystal ratio of Al is specified. CONSTITUTION:An n-type GaAs block layer 2 is formed on a p-type GaAs substrate 1 in the liquid phases epitaxial growth way and a stripe-like groove 3 reaching the block layer 2 is formed. Then, a p-type GaAlAs clad layer 4, a p-type GaAlAs active layer 5, an n-type GaAlAs second clad layer 6, an n-type GaAs ohmic layer 7, and a GaAlAs cap layer are crystallized and grow one after another by the use of a liquid phase epitaxial device where the growth of multilayer epitaxial film is obtainable by using a slide boat. Thus, a wafer for a semiconductor laser is obtained. As to a melt for making the cap layer grow, the addition of Al in a Ga melt is performed so that an Al mixed crystal ratio comes to 0.85-0.95.
Patent JP-H11194844-A (JP)
Title: Self-correction type constant current circuit
Inventor: YOSHIDA SHINICHI
IPC: H01L27/088
Filed: 1998-01-05
Abstract: PROBLEM TO BE SOLVED: To make obtainable a constant current small in the variation of its absolute value and small in the variation of temperature coefficient by inserting resistance between the source and gate of a depression type MOS transistor. SOLUTION: A constant current flows between the source and drain of the depression type MOS transistor 1 by connecting the source of the transistor 1 to one terminal of a resistance 2, connecting the gate of the transistor 1 to the other terminal of the resistance 2 with a VSS and connecting the drain of the transistor 1 to a VDD. For instance, the constant current is stabilized because gate potential is changed in the direction where the constant current does not flow by boltage drop that is caused by a current which flows into the resistance 2 that is inserted between the gate and the source when threshold voltage becomes high and a constant current is about to be large. Thus, self- correction is effected and the constant current is stabilized.
Patent JP-H02181162-A (JP)
Title: Recording method
Inventor: KAMIYAMA MITSUAKI
IPC: G03G13/26
Filed: 1989-01-06
Abstract: PURPOSE:To facilitate the formation of master images by adhering an electrically insulating material to the tacky images formed by selective heating of an image carrier having a nonelectrifiable layer which exhibits thickness by heating, thereby forming the master images. CONSTITUTION:The tacky images L are formed on the image carrier 1 having the nonelectrifiable layer 3 which exhibits the tackiness by heating and the electrically insulating material T is adhered to the tacky images L to form the electrically insulating pattern images. The insulating pattern images are used as an electrostatic printing master M. The automatic execution of the stage for forming the master images M and the electrostatic printing stage by using the master images M within the same device is possible. Copying of many sheets from the same original at a high speed is thus executed by using the master images M.
Patent JP-H08188253-A (JP)
Title: Work taking-out device
Inventor: ITOU MOTOMICHI
IPC: H01F7/06
Filed: 1995-01-06
Abstract: PURPOSE: To take out works in an arbitrary shape reliably one by one by a method wherein a magnet grounding detecting part forms an air cylinder having a sensor for detecting a rod position, one end of a compression direction free member is attached to the elevation operation side of a rod or a cylinder, and a magnet is suspended from the other end. CONSTITUTION: When a hand 6a is lowered from a position above a container 7 as a magnetic force high enough to allow attraction of only one work 8 is generated by an electromagnet 5, simultaneously with or in a slight delay from contact of an attraction part 5a with a work 8 at an upper layer, a rod 11a is adsorbed in a cylinder 11 through the restoration force of a compression spring 11b. Namely, at a point of time when a reaction force from the work 8 is generated to a value being approximately 5-20% or more of the weight of the electromagnet 5, the electromagnet 5 is escaped to above. A point of time when a piston 11d is not detected by a sensor 11c is completion of grounding and by raising a hand 6a, the work 8 is attracted to the attraction part 5a.