baber/WOPTO huggingface dataset:
Patent GB-1602087-A (GB)
Title: 2,3-diphenylchromone derivatives and their preparation and therapeutic applications
IPC: C07D311/26
Filed: 1978-05-25
Abstract: The 2,3-diphenylchromone derivatives correspond to the formula: <IMAGE> in which R1 and R2 are alkyl groups, or the two groups R1 and R2 form, with the nitrogen atom on which they are fastened, a 5- or 6-membered heterocycle which can optionally contain another heteroatom, R3 is a phenyl group or a phenyl group para-substituted by groups chosen from an alkyl group, a halogen atom, a nitro group or an amino group. They also relate to the addition salts with pharmaceutically acceptable inorganic or organic acids. These compounds have a stimulating action on the central nervous system and a respiratory analeptic action.
Patent GB-359953-A (GB)
Title: Improved process for the separation of alcohols and phenols from mixtures
IPC: C07C37/86
Filed: 1930-07-24
Abstract: Eugenol and acetyleugenol; terpenes; ketones; aldehydes; esters.-Monohydric alcohols, or monohydric phenols are separated from mixtures containing them by treating the mixtures with neutral esters of boric acid such as triethyl borate or tributyl borate, removing the other constituents by distillation, and liberating the alcohols or phenols by decomposing the residual borates, if necessary after a previous purification by crystallization.  An approximate separation of different alcohols in the initial mixtures may be obtained by using only that quantity of boric ester required to combine with the more readily reacting alcohol.  According to examples (1) thin oil is heated in vacuo with tributyl borate.  Butyl alcohol distills over, followed by terpenes, camphor (which may be recovered), and finally excess of tributyl borate.  The residual mixture containing trilinalyl borate and some dilinalyl borate is decomposed with sodium carbonate solution, and on steam distillation of the oil, linalol is obtained, (2) dehydrated Java citronell oil is distilled with triethyl borate.  Small quantities of terpenes and methyl heptenone distil over first, followed by citronellal, cetral, esters, and sesquiterpenes.  The boric ester residue is decomposed with hot water, and on fractional distillation yields isopulegol, d-citronellol, geraniol, eugenol, sesquiterpene alcohols (elemol and cadinol), and heavy terpenes, (3) fusel oil produced in the manufacture of cellulose from coniferous wood is distilled with triethyl borate at atmospheric pressure.  Methyl, ethyl, propyl, and isopropyl alcohols distil over.  On continuing the distillation in vacuo triethyl borate, monohydric alcohols, and triisobutyl borate come over successively.  The residue containing triisoboruyl borate is decomposed with hot water, and l-borneol obtained by distilling the oil obtained in vacuo, (4) a mixture of benzyl alcohol and benzyl acetate are distilled with triethyl borate, and when the acetate has been driven off, benzyl alcohol is obtained from the residue as before, and (5) Madagascar oil of cloves is distilled with triethyl borate, the distillate containing methyl benzoate, methyl eugenol, ketones, caryophyllene, and acetyl eugenol.  The residue when treated as in example (2) yields eugenol.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of neutral esters of antimonious or phosphorus acids for effecting the separation.  This subject-matter does not appear in the Specification as accepted.
Patent GB-355470-A (GB)
Title: Improvements in the manufacture of paper
Filed: 1930-07-25
Abstract: 355,470. Compound sheet materials. WATSON, Ltd., R. & W., WATSON, J. H., and ANDERSON, H. E., Linwood, Renfrewshire. July 25, 1930, No. 22439. [Classes 96 and 140.] Paper which is waterproof, greaseproof, acid and alkali proof and his insulating properties is prepared by interposing a sheet of rubber or rubber substitute between two layers of paper immediately they are formed or the wire and before couching, and subsequently pressing and drying the superposed layers between heated rolls so that the rubber is melted and pressed into the pores of the paper.
Patent GB-694013-A (GB)
Title: Improvements in impact forging apparatus
IPC: B21J7/46
Filed: 1951-09-27
Abstract: 694,013. Automatic control systems. CHAMBERSBURG ENGINEERING CO. Sept. 27, 1951 [Oct. 16, 1950], No. 22570/51. Class 38 (iv). [Also in Groups XXII and XXXVI] In a power-operated forging hammer there is provided electromagnetic sensing means, adjacent the path of travel of the hammer and responsive to its presence, and means operable by the sensing means for indicating or controlling the hammer stroke. The invention is described as applied to each of the forging heads of the machine described in Specification 672,070, [Group XXII]. Each sensing means 111 and 112 may comprise a permanent magnet 114 and surrounding coil 115 connected, through a resistance 127 or 129, Fig. 4, to the grid of a thyratron 121 or 122. The cathodes of these thyratrons are connected to a tap on a resistance 124 which, with a resistance 123, is supplied with direct current by a rectifier unit 120. The anodes are connected to a tap on the resistance 123 through indicator lamps 125, 126 and also through solenoids 134, 135 controlling by means of switches 132, 133 the reversible motor 137 which adjusts the valve 26, Fig. 1, which varies the proportion of pressure fluid supplied to the two cylinders 11, 11a for effecting the forging blow. If both rams 10, 10a advance equally no impulse is sent by either of the means 111 or 112, but if either ram is in advance of the other the adjacent sensing means sends an impulse to the corresponding thyratron grid, thus operating the motor 37 and adjusting the valve 26 in the desired direction. This adjustment is only slight because a normally closed switch 91 is connected in the anode circuits and is only opened for a short period during each forging blow by a motor-driven cam 90. The remote control device and the diaphragm device for automatically stopping the machine when there is excessive unbalance, described in the prior Specification, are omitted.
Patent GB-674511-A (GB)
Title: Improvements in or relating to a multiple frequency generating device for carrier current telephone system
IPC: H03B21/02
Filed: 1950-09-14
Abstract: 674,511. Multiplex systems. SOC. ALSACIENNE DE CONSTRUCTIONS MECHANIQUES. Sept. 14, 1950 [Nov. 21, 1949], No. 22667/50. Class 40 (iv). In a multiple carrier telephone system, the telephone channels are transposed in frequency and grouped in subgroups in a relatively low frequency band by means of a first modulation, and the channels are then brought to their final positions by a second modulation in the manner described in Specification 595,885, the device as a whole being controlled by a generator having a relatively high basic frequency, e.g. 108 kc/s., the said generator by the use of frequency modulators and doublers providing all the frequencies required in the system. The Figure is self-explanatory.
Patent GB-952842-A (GB)
Title: Epoxy resin compositions, and articles formed therewith adapted for surgical use
IPC: C08L63/00
Filed: 1960-06-29
Abstract: An epoxy resin composition for repairing body tissue and fractured bases comprises 100 parts by weight of epoxy resin, 1 part by weight of germicide and 2 parts by weight of a curing agent comprising a mixture of the epoxy resin with diethylene triamine in the proportion of 3 to 1 by weight. The epoxy resin is based on diglycidyl ether of bisphenol A. A thioplast liquid polymer e.g. mercaptan, styrene alkyd polymers or microballoons (phenolic resin microspheres) or fillers such as silica, aluminium silicate or bone ash may be included to modify the physical characteristics of the composition.  The composition may be put up in two tubes, one containing the epoxy resin, germicide and filler and the other containing the curing agent, the contents of the tubes being mixed at the point of use.
Patent GB-940092-A (GB)
Title: Improvements in or relating to apparatus for sound reproduction
Inventor: TREADWELL RICHARD JULIAN
IPC: G11B15/00
Filed: 1961-06-23
Abstract: 940,092. Interrogating apparatus. S. SMITH & SONS (ENGLAND) Ltd. June 21, 1962 [June 23, 1961; Sept. 8, 1961], Nos. 22751/61 and 32269/61. Heading G5R. A random record player in which a succession of primary records are played following operation of one actuating means and one or more appropriate secondary records relevant to a primary record are played following operation of a second actuating means after a primary record has been played. The apparatus is intended to give audible instructions to an operator carrying out a test or maintainance schedule,the result of the test being reported by operation of one or other of the initiating means. Where the records are stored on a 4-track magnetic tape Fig. 1, primary test instructions A n  are associated with control tones T c  which halt the tape after each primary record. A 'yes' button (test reveals no fault) is pressed to play the next primary instruction, or a 'no' button is pressed whereupon the tape is reversed and an instruction B n  given, a tone T D  halting the tape; 'yes' or 'no' reports then play either record B<SP>1</SP> n  or D<SP>1</SP> n  (no reply being required to either instruction) and the tape stops and reverses due to T c  and repeats A n . The fault now having been cleared, the report 'yes' will now play A n+1 . A 'repeat' button back-spaces and repeats any A record. Some A records may have no associated B or D records (set up for the next test and report when ready) since only a 'yes' report is applicable. The required tape movements and head-switchings are provided by a logical system of transistorised gating circuits. (Fig. 2 not shown.)
Patent GB-227759-A (GB)
Abstract: 227,759. Bryce, T. L. Aug. 27, 1924. Tyres, eiastic, and tyre covers, tools for removing and replacing.-A tool for manipulating split rims comprises a pair of clamps each having one fixed and one movable jaw, the gripped ends of the rim being shifted by a lever F. One end of the lever is perforated to engage a pin E<1> projecting from one of the clamps, and adjacent this end an elongated curved slot G is provided in which engages a pin E projecting from the other clamp.
Patent GB-441820-A (GB)
Title: Improvements in or relating to bed rail fasteners
IPC: F16B12/60
Filed: 1935-08-13
Abstract: 441,820. Bedstead joints. MICHL, L., and MICHL, G., 13, Wallgasse, Vienna. Aug. 13, 1935, No. 22793. Convention date, Aug. 14, 1934. [Class 52 (ii)] A forked member 3 and a separate hooked member 4 are secured to the ends of the bed rail 2 so as to project beyond the lower and upper edges respectively and screw studs are provided on the end members of the bed so that the forked members may be placed over the lower screw studs and by a rotary movement of the rail about these studs the hooked members may be engaged over the upper screw studs. The members 3, 4 are formed of T-shape, the stems 6 being secured to the edges of the rail and the cross parts being countersunk flush with the end of the rail. When the rail is in position nuts on the screw studs are tightened to draw the members 3, 4 against the ends of the bed.
Patent GB-1345488-A (GB)
Title: Memory system
IPC: G11C8/12
Filed: 1972-05-16
Abstract: 1345488 Memory system NATIONAL CASH REGISTER CO 16 May 1972 [1 June 1971] 22838/72 Headings G4A and G4C A memory system includes several integrated circuit devices each comprising an address register having two groups of parallel outputs and a serial input, a decoding circuit connected to the first group of parallel outputs, a matrix memory coupled to the decoding circuit, an output register having parallel inputs connected to the output of the memory and a serial output, and a device select decoder coupled to the second group of parallel outputs of the address register. As described, the integrated circuit devices 12, 14, 16, 18, 20, 22, 24 and 26 are four phase MOS circuits which are supplied with two-phase clock signals # 1 , and 93 and are arranged to generate clock signals # 2  and # 4  internally, no details being given. The memories are said to be read only devices. Only one device 12 is described, the other devices being identical. Shift register 28 receives a 12-bit address serially via input 60. The first nine bits 40A-40I are used to address the memory 34, the output of which is fed in parallel to a 12-bit output shift register 36. The last three bits of the address are fed to a decoder 30, which, when supplied with the appropriate coded input, enables AND 32. The second input of AND 32 is supplied by an external read signal applied to terminal 64 when all 12 address bits have been supplied. The gate 32 in the device whose decoder 30 produces as output is thus enabled, and the word read from memory into the output register of that device is serially read out via terminal 66. It is stated that several systems, as illustrated, may be provided each constituting a page of data. Address signals are applied to terminal 60 of each system, the desired page being selected by a signal applied to terminal 62 of the appropriate system, the signal being effective to enable the decoders 30 of the selected system.
Patent GB-670549-A (GB)
Title: Improvements in or relating to sheet registering devices
IPC: B65H9/10
Filed: 1949-09-02
Abstract: 670,549. Feeding sheets. BACKHOUSE, H. T. Aug. 16, 1950 [Sept. 2, 1949], No. 22844/49. Class 100 (i). Sheet-registering devices.-In a sheet-registering device employing a suction member which grips each sheet and draws the side edge thereof up to a side-lay, an air nozzle is arranged to emit a blast of air to blow each sheet in turn into engagement with the suction member. As shown, the side-lay and operating means therefor is adjustably supported as a unit from a bar 1 and rests on the lay-board 2. This unit comprises a base 3 provided with a groove in which a suction slipper 5, in the form of a hollow tongue perforated at 6, can slide beneath a sheet 50 and draw the latter against a side-lay 8. The side-lay 8 is pivoted at 41 to a plate 11 which is secured at one end to the base 3 by a pivot 12, and is adjustable angularly, with respect to the base, by cam and slot means at the other end. A fixed air nozzle 13 is arranged in a position which is above the inner limit of travel of the tongue 5, and air is blown through perforations 14 in the nozzle at the time that suction is established to the tongue 5, whereby a sheet 50 is forced into engagement with the tongue. The tongue 5 then draws the sheet towards the side-lay 8, the air supply to the nozzle 13 is cut off, and, when the sheet is registered, the source of suction to the tongue is also cut off. The tongue 5 is reciprocated by a forked arm 15 which embraces a block pivoted on a pillar 18 upstanding from the tongue, the arm being pivoted to the base 3 and rocked by gearing from a shaft 20. A fixed valve chamber 21 contains two piston valves 22, 23 for suction and compressed air, respectively. The valve 22 comprises two relatively movable parts, a sleeve 24 and a tube 25, the sleeve being attached to the pillar 18 by a tube 18A and therefore movable with the pillar and tongue 5, and the tube 25 being recessed at 26 so that in one position a source of suction can be established to the tongue 5 through a pipe 29, port 28, passage 31, recess 26, and tube 18A. The valve 23 consists of a piston urged to the right, by a spring 35, against a head 36 on a screw 37 whereby compressed air from a pipe 39 supplied to a port 38 in the valve chamber cannot be supplied to the nozzle 13 until the piston is moved to the left and a groove 40 therein registers with the nozzle. In operation, when the tongue 5 moves to the left carrying the valve 22, the end 51 of the tube 25 strikes the screw head 36 so that the tube is stopped and continuing movement of the valve 22 establishes suction to the tongue 5. The valve 22 then pushes the piston valve 23 to the left and so compressed air is established to the nozzle 13. On the return movement of the tongue 5, the piston valve 23 is returned by the spring 35, and the tube 25 strikes an abutment 53, whereby both compressed air and suction are cut off. The side-lay 8 is raised by the action of an abutment on the oscillating arm 15 acting on an arm 42 on the side-lay.
Patent GB-1409412-A (GB)
Title: Tubular diaphragm liquid pump
IPC: F04B43/10
Filed: 1974-05-22
Abstract: 1409412 Reciprocating pumps MILTON ROY CO 22 May 1974 [24 May 1973] 22925/74 Heading F1A An hydraulically-actuated, tubular diaphragm pump comprises an actuating piston 10 which reciprocates a diaphragm 12 through a liquid column, diaphragm 12 acting through another liquid column on tubular diaphragm 22 through which liquid is pumped via check-valve assemblies 34, 36, tubular diaphragm 22 being of elliptical cross-section in its middle section 38, Fig. 5, and circular cross-section at each end. Diaphragm 12 is of elastomeric material, and is rigidly clamped at its periphery. A relief valve 18 and air bleed assembly 20 are provided for the actuating liquid column between piston 10 and diaphragm 12.
Patent GB-602496-A (GB)
Title: Improvements in electric motor control means
IPC: G05D23/275
Filed: 1943-05-27
Abstract: 602,496. Control of D.C. motors. TRIGGS, W. W. (Garrett Corporation). May 27, 1943, No. 22941/45. Divided out of 573,820. Drawings to Specification. [Class 38 (iii)] Reversing.-The subject-matter described is the same as that in Specification 573,820, [Group XXXV], but the claims relate to the system of electromagnets controlling the reversible electric motor.
Patent GB-1339348-A (GB)
Title: Device for studying small deviations between at least two objects
Inventor: APLIN C
IPC: G03H1/00
Filed: 1971-04-19
Abstract: 1339348 Measuring durations of 'objects' COMPAGNIE GENERALE D'ELECTRICITE 19 April 1971 [4 March 1970 26 June 1970] 23002/71 Heading G2J Two 'objects' are compared by superimposing wave surfaces from the two 'objects' to give an interference pattern which is formed into an image by a variable focal length lens and 'studied! The 'objects' include an actual object or one or both may be holograms of objects and the two 'objects' may be separated in time such that the comparison shows movements of a single actual object by comparing its present state with a hologram representing its state extant in time. The "study" may be visual, but, as described uses a computer to record data including the focal length of the lens to derive useful results. Formulae are given.
Patent GB-352760-A (GB)
Title: Wrenches
IPC: B25B7/10
Filed: 1930-07-30
Abstract: 352,760. Sliding-jaw wrenches. GATES, A. U., Armstrong, British Columbia, Canada. July 30, 1930, No. 23022. [Class 61 (iii).] An adjustable wrench, in which the movable jaw is carried by a yoke attached to the fixed jaw, is locked by means of a number of spring-pressed pawls. The sliding jaw 14 is provided on its inner edge with rows of serrations, arranged in staggered relation, according to the number of pawls 18 that are used ; the pawls are carried by a common pivot 19 which fits into channels 26 provided in the yoke, serving also to house compression springs 27 which press the pawls against the edge of a clamping lever 30, downward pressure for the individual pawls being provided by leaf springs 21, fixed to the yoke. The clamping lever, which is pivoted to the yoke by a pin 29, is provided with a cam surface and lip which serve to push the pawls, and consequently the sliding jaw, forward when the lever is lowered, and to release the pawls when raised.
Patent GB-630049-A (GB)
Title: Improvements in or relating to a rotary impact drill
IPC: E21B4/10
Filed: 1947-08-20
Abstract: 630,049. Well boring equipment. STEVENS, A. H. (Snyder Oil Tool Corporation). Aug. 20, 1947, No. 23072. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 20, 1947.] [Class 85] A rotary impact drill has secured to a bit 17a cam 28 engaging another cam 31 secured to a perforated sleeve capable of freely rotating about a continuously rotating drill stem 11. Rotation of this sleeve is impeded by vanes 37 projecting into the drilling fluid 19 so that differential rotation occurs between the two cams so that the tube 36 rises to drop suddenly so imparting a blow to the bit. The vanes may be either continuous or interrupted vertical strips, right or left helices or rows of rods. The upper cam can be spring - biassed and the sleeve 37 secured to the lower cam which is free to rotate, the upper cam having a splined connection with the drill stem. Rubber or metal bushes secured either to the drill stem or the sleeve 36 position the upper end of the sleeve.
Patent GB-917249-A (GB)
Title: Improved twist grip
IPC: B62M25/00
Filed: 1961-06-26
Abstract: 917,249. Twist grips. ZAVODY 9. KVETNA, NARODNI PODNIK. June 26, 1961 [July 13, 1960]. No. 23092/61. Class 136(1). A twist grip control consists of two members 2 and 7 which through a helix or helices 3 and 14 move slider 4 and 15 inside the handlebar and secured to cables 5 and 16 respectively. A bush 11 coupled to shoulder 12 on a socket 13 fixed to the handlebar 1 by a grub screw moves in an annular space 10 formed between the outer 8 and inner parts of the member 7 to locate the two parts of the twist grip and to ensure that they move independently of each other. The ends of the sheaths of the cables are located by a stop 17.
Patent GB-810425-A (GB)
Title: Pneumatic tyres
Inventor: WRIGHT JOSEPH
IPC: B29D30/54
Filed: 1955-08-11
Abstract: 810,425. Pneumatic tyres. DUNLOP RUBBER CO. Ltd. July 20, 1956 [Aug. 11, 1955], No. 23118/55. Class 144 (2). A pneumatic tyre has a tread reinforcement 9 between the tread 12 and the carcase 8 in the form of a double layer of cord with the cord in one layer crossing that in the other layer to form, a lattice, and the cord in each layer extending in a series of loops 13 which progress continuously around the tyre in the same direction and meet and leave diametrically opposite edges of the tread substantially tangentially at each end of a geodesic path across the tyre crown. As shown the tread reinforcement 9 is wound on the bared crown of a carcass 8 of a worn tyre mounted on a collapsible former 2, the bared crown having been coated with rubber cement. The cord used may be rubbercoated steel, cotton, rayon, nylon, &c., either in filament or stranded form and may be wound by an apparatus such as described in Specification 786,162, the former 2 having a part spherical surface and the carcase 8 being stretched to conform thereto, Fig. 6. Rubber tread and side wall stock 12 is applied to the completed winding 9 which latter subsequently becomes embedded in the tread during moulding. In an alternative arrangement, loop 13 of the winding 9 may comprise diametrically opposite arcuate edge portions at each end of the geodesic portions to ensure a tendency to contraction of the edge portions of the reinforcement under the cord tension imposed by tyre inflation.
Patent GB-780110-A (GB)
Title: Improvements in or relating to electrical control systems for machine tools
IPC: B23Q15/00
Filed: 1955-08-11
Abstract: 780,110. Switching systems for machine tools. KNUG, C. Aug. 11, 1955 [Aug. 11, 1954], No. 23202/55. Class 38 (4). When a feeler 1 is raised by an over-sized part of a workpiece 2, a contact 3 is opened and a cold cathode valve 4 is caused to strike. A low-current relay 5, which is connected in the anode circuit of the valve, closes contact 6 to energize contactor 7 for initiating the feed movement of a grinding head relative to the workpiece. The contactor 7 has self-maintaining contacts 9, and its energization effects the opening of contacts 10, thereby interrupting the circuit associated with the valve 4. Deenergization of the contactor may be caused by a limit switch 11 or through the agency of a time-delay relay.