baber/WOPTO huggingface dataset:
Patent GB-968603-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: H02P25/26
Filed: 1961-07-25
Abstract: 968,603. Control of A.C. motors. BROOKHIRST IGRANIC Ltd. July 25, 1961 [July 25, 1960 (2)], No. 26879/61. Heading H2J. The rotor circuit of an induction motor 2 comprises non-linear resistance elements in the form of solid selenium rectifier diodes 16-22 poled to conduct in their forward direction, these diodes having an initial high forward resistance which decreases as the applied voltage increases. The diodes are connected to a full-wave rectifier 14 preferably comprising silicon diodes, and are shunted in sequence to provide acceleration. At each speed-point, the diodes 16-22 which are in circuit regulate the motor speed against varying load. In a modification, the rectifier bridge is dispensed with and the non- linear elements are grouped in a delta arrangement, each group having two sub-groups connected in series, and each sub-group having two elements in reverse parallel, Fig. 3 (not shown). A second modification is similar to the first except that the groups are connected in star relation, Fig. 4 (not shown). In another embodiment, the rotor circuit comprises three single-phase full-wave rectifier bridges connected in delta, there being a series of non- linear resistance elements connected across the output terminals of each bridge, Fig. 5 (not shown). The rectifier bridges may alternatively be connected in star, Fig. 6 (not shown).
Patent GB-884323-A (GB)
Title: Improved arrangement for easy assembling and disconnecting of the light source section of a sensitive paper printing machine
Inventor: AIZAWA TATSUO
IPC: G03B27/16
Filed: 1960-08-04
Abstract: 884,323. Contact printing apparatus. MITA, S. Aug. 4, 1960, No. 27017/60. Class 98(2). A contact printing apparatus has a rotatable glass cylinder 13 supported between two side frames 1, a light source 11 and a planar reflector 6 within the cylinder also being supported between the frames 1; these frames have cut-out portions 2 shaped as shown, with oppositely disposed notches 3 in which the planar reflector is located. The reflector has tapered ends 8, and also has a slot 9 in which can engage a latch 10 fixed on the frame. The lamp 11 is mounted on the reflector by fittings 12. The cylinder is rotated by rollers 14. Such an arrangement is readily demounted and reassembled without the use of tools or fastening means.
Patent GB-479017-A (GB)
Title: An improved process for preparing polybasic acid derivatives of hydroformed naphthas and products thereof
IPC: C07C51/225
Filed: 1936-06-19
Abstract: Polybasic acids are manufactured by subjecting naphthas hydroformed at a temperature above 900 DEG  F. to oxidation, e.g. in vapour phase by the action of air or oxygen in the presence of an oxidation catalyst consisting of vanadium pentoxide, molybdenum oxides, oxides of uranium or of any of the metals of groups V and VI or mixtures thereof, or in liquid phase in the presence of liquid phase oxidation catalysts which should preferably be soluble in the naphtha, e.g. manganese naphthenate or mercury acetate.  The starting materials are prepared as described in Specification 477,015, and may be subjected to a preliminary treatment as described therein.  In an example, a hydroformed naphtha prepared as described in the example in Specification 477,015, or a fraction thereof, is oxidized by passing its vapour mixed with an equal weight of air over the catalysts specified above at about 200 DEG  C., or by treating it in liquid phase with oxygen-containing gases at temperatures at which the oil is liquid, e.g. 140--200 DEG  C., if desired in the presence of liquid phase oxidation catalysts.  Specification 363,711 also is referred to.  The Specification as open to inspection under Sect. 91 comprises also the second method for the preparation of the starting materials which is described in Specification 477,015 as open to inspection under Sect. 91.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1098347-A (GB)
Title: New oxepin derivatives, their production and use
IPC: C07D313/14
Filed: 1965-06-28
Abstract: The invention comprises dibenzoxepins of the formula <FORM:1098347/C2/1> wherein X1, X2, Y1 and Y2 represent hydrogen, chlorine or bromine atoms, or C1- 4 alkyl or C1- 4 alkoxy radicals, R1 represents a hydrogen atom or a methyl radical and R2 and R3 each represents a hydrogen atom or a C1- 4 alkyl radical, or R2 and R3 together with the adjacent nitrogen atom and, optionally, with the inclusion of an oxygen atom or an imino, C1- 6 alkylimino or C1- 6 hydroxyalkylimino group as ring member, represent a saturated heterocyclic radical having 5 to 7 ring members; acid-addition salts thereof; and a process for their preparation comprising reacting a reactive ester of a hydroxyl compound of the formula <FORM:1098347/C2/2> with an amine of the formula <FORM:1098347/C2/3> or with a metal compound of an N-acyl derivative of a C1- 4 alkylamine, if necessary hydrolysing the reaction product to split off any acyl radical bound to the nitrogen atom of the side chain, if desired treating a compound of Formula I having an imino group as ring member with an alkylene oxide having at most 6 carbon atoms or with a reactive monoester of an alkane diol having at most 6 carbon atoms and, if desired, converting a compound of Formula I into a salt with an organic or inorganic acid.  2 - Methoxy - 11 - bromomethyl - dibenz[b,f]-oxepin is prepared by esterifying 2-phenoxy-5-methoxybenzoic acid with ethanol to form 2 - phenoxy - 5 - methoxybenzoic acid ethyl ester, reducing this compound with LiAlH4 to form, 2-phenoxy-5-methoxybenzyl alcohol, reacting this compound with phosphorus tribromide to form 2 - phenoxy - 5 - methoxybenzyl bromide, reacting this compound with potassium cyanide to form 2 - phenoxy - 5 - methoxyphenyl acetonitrile, hydrolysing this compound with aqueous KOH to form 2-phenoxy-5-methoxyphenyl acetic acid, cyclising this compound by treatment with polyphosphoric acid to form 2-methoxy-dibenz [b,f]-oxepin, reacting this compound with methyl iodide to form 2-methoxy-11-methyldibenz[b,f] - oxepin - 10(11H) - one, reducing this compound with LiAlH4 to form 2-methoxy-11 - methyl - 10,11 - dihydro - dibenz[b,f]-oxepin-10-ol, reacting this compound with thionyl chloride to form 2 - methoxy - 10 - chloro - 11 - methyl - 10,11 - dihydro - dibenz[b,f] - oxepin, dehydrochlorinating this compound by treatment with potassium tertiary butylate to form 2 - methoxy - 11 - methyl - dibenz[b,f] - oxepin, and finally brominating this compound by treatment with N-bromosuccinimide.  10 - Bromomethyl-, 10 - (a  - bromoethyl)- and 2 - chloro - 11 - bromomethyl - dibenz[b,f] - oxepins are prepared by brominating 10-methyl-, 10-ethyl and 2 - chloro - 11 - methyl - dibenz[b,f]-oxepins with N-bromosuccinimide.  Pharmaceutical compositions having adrenolytic and central depressant activity, for oral, rectal or parenteral administration comprise a compound of the invention together with a pharmaceutical carrier.
Patent GB-702623-A (GB)
Title: Process of preparing calcium-2-methylchlorophenoxyacetates
IPC: C07C59/70
Filed: 1951-11-21
Abstract: Calcium - 2 - methyl - 4 - chlorophenoxy acetate and/or 2-methyl-6-chlorophenoxy acetate are prepared by chlorinating orthocresol to form a mixture of 2-methyl-4-chloro-cd 2-methyl-6-chlorophenols, concentrating this mixture to bring the concentration of one of the chlorophenols to at least 75 mol. per cent. reacting the resulting enriched product with monochloracetic acid in the presence of lime and separating the precipitated salt. The condensation of the chlorocresols with monochloracetic acid is advantageously effected at boiling temperature under reflux. In the example a crude product containing 60 per cent. of 2-methyl-4-chloro-phenol obtained by chlorinating orothocresol with limited quantities of chlorine is separated into two fractions by distillation, the fraction rich in 2-methyl-4-chlorophenol is shaken up with monochloracetic acid, slaked lime and water and calcium methyl-chlorophenoxy acetate is filtered off; the other fraction containing 2-methyl-6-chlorophenol is concentrated to bring its concentration up to 75 per cent. and treated as the other fraction to give a mixture of calcium-methyl chlorophenoxy acetates in which the proportion of calcium - 2 - methyl - 6 - chloro - phenoxy acetate is predominant.  Impurities present comprise calcium cresolates, chloride, chloroacetate and glycollate.  Specification 573,479 is referred to.
Patent GB-778448-A (GB)
Title: Improvements in or relating to building slabs
Inventor: HINCHLIFFE ERNEST DARBY
IPC: E04C2/40
Filed: 1953-10-06
Abstract: 778,448. Building slabs; beam coverings. HILLS (WEST BROMWICH), Ltd. Oct. 6, 1954 [Oct. 6. 1953]', No. 27356/53. Classes 20(4) and 87(1)  A reinforced plaster slab for covering a stanchion &c. a is provided with opposed pairs of V- notches 2, 3 to provide hinges around which the sections 4-7 are swung. The covering. is secured in position by twisting together projecting reinforcement wires 9.
Patent GB-320148-A (GB)
Title: Improvements in signalling devices and direction indicators for vehicles
IPC: B60Q1/38
Filed: 1928-07-17
Abstract: 320,148. Watkins, A. E. July 17, 1928. Road-traffic signals on vehicles. - The signalling device, indicating towards both front and rear is arranged on the vehicle so that its front indications are given by direct light and can be seen by the driver in his mirror, while the rear indications are given by light reflected from a mirror in the device. Moreover means are provided whereby each signal is rendered effective instantaneously by movement of the corresponding control button or lever and persists a while after the button has been released. In the construction shown, the signal device consists of a compartmented box having a sloping surface a' to reflect the light from the lamps c through the stencilled or other characters on the rear face. On the narrow front face a and level with the lamps are similar characters and the box is so disposed as to enable these to be seen in the driving-mirror. In the case of a saloon car the box may be disposed at or above the rear window. In the form of control shown in Fig. 4, push-buttons S, S<1>, S<2> in circuit with the respective signal lamps t, t', t<2> make contact, when pushed in, with a bail w connected to the battery. Circuit is not complete however until continued movement of the button closes a second circuit at 1, 1<a> or 1<b> to energize a magnet 2 and thus shift a lever g to make contact at g'. The button when released opens the circuit of the magnet but is retained by the bail until another button is operated. The return of lever g under the action of spring h to open the circuit again is retarded by an air brake m geared with the lever through a ratchet and pawl. In another form the retarding means acts on an universal bail displaced by any one of three circuit-closing finger-levers.
Patent GB-1557167-A (GB)
Title: Method and apparatus for detecting yarn on rods and severing the yarn
IPC: B65H63/04
Filed: 1975-06-30
Abstract: To prevent undesirable yarn lays from being wound on a roller (2), light emitted by a light source (1) is directed onto a point at the roller surface. A photosensitive device (3) is arranged in such a way that it receives the light reflected from the said point of the roller. When undesirable yarn lays are located at the said point on the roller, the light is reflected in a scattered manner, and the intensity of the light entering the photosensitive device is greatly reduced. When this is so, the device generates an output signal which is used for controlling a yarn cut-off device. <IMAGE>
Patent GB-304258-A (GB)
Title: Improvements in or relating to inking mechanism for use in printing machines
IPC: B41F31/02
Filed: 1927-10-17
Abstract: 304,258. Quick, C. G., and Morris, E. T. Oct. 17, 1927. Inking-apparatus.-In an inking-apparatus in which the ink is fed to the first drum 2 of a distributing system through grooves or other outlets in a member 1 which is supplied with ink from a suitable source such as a pump and pipe system, the member 2 is reciprocated longitudinally in a guide 3 to distribute the ink evenly on the drum 2. The reciprocation is effected by a roller 5 engaging a transverse slot 4 in the member 1 and mounted on an eccentric pin 6 which is carried by a shaft 7 rotated by a wormwheel 9 and worm 10. The member 1 may be moved on a guide 11 away from the drum 2 for inspection, by turning a shaft 14 provided with a pinion 13 engaging a rack 12 on the guide 3. Specification 301,786 is referred to.
Patent GB-1505266-A (GB)
Title: Material distribution apparatus and method
IPC: B01J4/00
Filed: 1975-06-30
Abstract: 1505266 Distributing fluid to heat exchangers ATLANTIC RICHFIELD CO 30 June 1975 27576/75 Heading F4S A header apparatus for distributing a liquidvapour mixture of fluid into at least two separate streams for separate flows through a heat exchange system or other processing equipment (not shown) comprises a vessel 10 into which the fluid flows through an inlet 11 and is distributed through pipes 12 after separation into different phases, the vapour passing into the open upper ends of the pipes and the liquid accumulating in the base of the vessel up to or beyond the level of apertures 13 therein for mixture in the pipes and flow to the heat exchange system. Direct flow of the mixture to the open ends of the pipes from the inlet is substantially prevented by a splash baffle 14 above the pipes, end an additional prevention means may be provided comprising a single aperture large plate or as shown individual apertured plates 16 above the pipes.
Patent GB-151652-A (GB)
Title: Boring and stuffing machine for broom- and brush-heads
IPC: A46D3/06
Filed: 1920-09-29
Abstract: 151,652. Henning, G. Sept. 29, 1919, [Convention date]. Drilling brush stocks. -In a boring and tufting machine for broom and brush heads of the type having a common work-support, the boring-device or the tufting-device is mounted to oscillate in a plane containing the common axial working direction of the tools. As shown, the boring-device comprises a drill a which may be adjusted to be in the line of movement of the tufting- tool b, and an arm g adapted to oscillate about the shaft h through the medium of a lever rigidly connected to the arm g and operated by means of a connecting-rod m driven from the machine. The support carrying the work x comprises a holder d pivotally mounted on the pin c and a table f oscillating on two studs e. After the work has be.en adjusted to a new position through the feed-motion (not shown) of the work support, the drill is lowered by means involving the actuation of the lever m, and thereafter is withdrawn to leave room for the operation of the tufting-tool. In a modification, the support of the work-piece is adapted to move towards the tufting-tool, which is fixed. The Specification as open to inspection under Sect. 91 (3) (a) states that the boring-device may move in a lateral direction instead of oscillating upwardly. This subject-matter does not appear in the Specification as accepted.
Patent GB-261003-A (GB)
Title: Luminous electric discharge tubes
IPC: H01J61/54
Filed: 1925-11-03
Abstract: 261,003. Brettmon, J. Nov. 3, 1925, [Convention date]. Vacuum tubes; low-pressure metallic-vapour apparatus.-A salt or substance containing radium is placed in a highly-evacuated discharge lamp and gives off emanations which are comverted into a gas. The radium salt may be in the form of crystals or in solution. As shown, a porous pot c containing radium is placed in a tube which is evacuated until a pressure of 20,000 volts fails to produce a discharge. After a few hours the emanations from radium are sufficient to enable a discharge to be produced with 10,000 volts. In a modification, a metailic salt such as sodium chloride is inserted in the lamp and may be incorporated with the radium-containing substance. The Specification, as open to inspection under Sect. 91 (3) (a), comprises also a lamp with a billing of nitrogen which is ionized by radium contained in a platinum tube, or the lamp may have an auxiliary electrode containing sodium or a sodium salt emitting vapour, the radium salt being placed in that electrode or in a porous pot. This subject-matter does not appear in the Speeification as accepted.
Patent GB-208288-A (GB)
Title: Improved elastic bust bodice
IPC: A41C3/00
Filed: 1922-10-12
Abstract: 208,288. Sherwood, H. T. Oct. 12, 1922. Breast-supports; undergarments.-A brassiÞre woven in one piece of elastic material includes a lower or band portion B of firmly-woven elastic threads, and an upper portion A wherein the threads are loosely woven to form a breastreceiving part and are crowded together towards the ends E, F to allow of longitudinal expansion.
Patent GB-1049456-A (GB)
Title: Improvements in or relating to grab bucket devices for digging wells or shafts
IPC: E21B27/00
Filed: 1965-06-30
Abstract: 1,049,456. Grab excavators. P. DE BOSREDON. June 30, 1965 [July 28, 1964], No. 27672/65. Heading E1F. A grab bucket assembly designed for sinking shafts includes an outwardly expandable linkage for engaging the wall of a shaft to hold a grab bucket, secured to the lower end of the assembly, against vertical movement during a digging operation of the shells of the bucket. The linkage involves an hydraulically actuated single or double acting jack to the piston rod and cylinder of which are pivoted radially extending arms pivoted in turn to pads that on expansion of the jack are forced by the arms into engagement with the wall of the shaft. A single acting jack expands against springs.
Patent GB-1112677-A (GB)
Title: Method of producing plate electrodes, and the resulting electrodes
IPC: C25B9/04
Filed: 1966-06-21
Abstract: A plate electrode comprising a plate and at least one current supply conductor connected thereto is produced from a malleable material <PICT:1112677/C6-C7/1> which becomes solid on firing by forming the plate and conductor from the malleabe material, assembling them together in the malleable state and then firing the assembled electrode so as to produce an integral bond between plate and conductor.  The malleable material may be a mixture of a carbonbased substance, e.g. coke, and a binder e.g. pitch.  The electrode plate and conductor may be produced by extrusion, matching surfaces being produced on the plate and conductor e.g. such that the conductor extends into an aperture in the plate.  The electrode formed may be subjected to impregnation with pitch, graphitization and a machining operation e.g. to produce grooves 8 and apertures 9 therein.
Patent GB-408015-A (GB)
Title: Improvements in or relating to wireless direction finding systems
IPC: G01S1/02
Filed: 1932-10-05
Abstract: 408,015. Directive wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, DOWSETT, H, M., 47, Drayton Gardens, Winchmore Hill, both in London, and CADZOW, R., Ardentinny, Argyllshire. Oct. 5, 1932, No. 27716. [Class 40 (v).] A number of transmitting stations, spaced geographically, are energized periodically in succession, and a visual indication is given automatically at the receiver of the particular one which is then in the maximum or minimum direction. The transmitters A ..... F, Fig. 1, may be impulsed in succession from a central control station X through a multi-polar generator a ... f shown in Fig. 2 ; or each transmitter may be provided with a separate synchronously-controlled motor which controls a slotteddisc and photo-electric impulse-generator. One or more of the transmitters also sends out a synchronizing frequency. At the receiver, Fig. 3, a non-directional aerial OA utilizes the synchronizing signal to control a motor SM, which drives a disc RD provided with staggered slots SA .... SF as shown in Fig. 4. These slots co-operate with a translucent chart T, shown separately in Fig. 5, and bearing the names of the different transmitting stations A .. F. For any particular alignment of the directive aerial DFA, Fig. 3, the incoming signals illuminate a neon lamp N so that either (a) all the names of the stations are visible except that on which the aerial is alinged ; or (b) the name of that station alone is shown. The transmitters work on a common wavelength, and the impulse periods are such that only a small frequency-band is utilized.
Patent GB-902300-A (GB)
Title: Improvements in and relating to the detection of leaks in containers
IPC: B65D83/14
Filed: 1960-08-11
Abstract: 902,300. Testing containers for leakage. OWENS-ILLINOIS GLASS CO. Aug. 11, 1960 [Aug. 24, 1959], No. 27786/60. Class 106 (2). [Also in Groups XVII and XXVIII] A glass container, e.g. an aerosol for contents under a substantial pressure, has an expandable protective covering 16 adhering to the entire exterior surface 14 of the container apart from a predetermined area 23. If the glass container should develop a leak in that area, the covering will bulge so enabling the faulty container to be detected. The portion 23 of the surface may be coated with an agent to neutralize the effect of the adhesive used to secure the covering, or the adhesive may be omitted from this portion. The area 23 may be an annular portion surrounding the neck of the container, which is stated to be the point at which aerosol-type containers are weakest.
Patent GB-934691-A (GB)
Title: Improvements in the production of photographic printing plates
Inventor: HEPHER MARTIN
IPC: G03F7/06
Filed: 1958-08-29
Abstract: 934,691. Photolithographic printing plate. KODAK Ltd. Nov. 27, 1959 [Aug. 29, 1958], No. 27799/58. Class 98 (2). A silver image is formed on a metal support the surface of which.has been grained, anodized or converted to a compound of the metal to render it hydrophilic, without use of a colloidal binder, and is treated with an organic compound containing in the molecule a strongly oleophilic group and another group which has an affinity for the silver image but not for the metal or metal-compound surface, to produce the printing plate. In the preferred form the silver image is formed by the diffusion process using such metal support as receiving material with the aid of nuclei, but it is explained that a gelatin-nuclei layer cannot be used because of the oleophobic nature of gelatin and examples are directed to nuclei production by application of a washed and diluted Carey Lea silver sol to prepared aluminium supports and, after image transfer to the swabbing with an acetone/water solution of 1.octyl-1,2,4,5-tetrahydro-1,3,5-triazene-4-tniol to result in plates which will give several thousand copies. Numerous further organic sulphur compounds for the treatment are quoted. Specifications 934,692, 934,693 and 934,694 are referred to.
Patent GB-839050-A (GB)
Title: Improvements relating to loose leaf filing devices
Inventor: MORTIMORE CHARLES HENRY
IPC: B42F13/02
Filed: 1957-09-04
Abstract: 839,050. Loose-leaf binders. HARE & SON Ltd., C. H. Sept. 1, 1958 [Sept 4, 1957], No, 27854/57. Class 146(1) In a loose-leaf binder having one cover a carrying fixed prongs e and the other cover c carrying a spring-controlled sliding bar mechanism g, g<SP>1</SP> for locking the ends of the posts, the prongs are of arcuate shape so as to facilitate the sliding movement of the leaves and have recesses e<SP>1</SP> parallel to the cover a for engagement by keyhole slots in the locking bar. A transfer member comprising a plate f with prongs curved similarly to the prongs e is provided, the plate being of such a width that it abuts against the spine b when the binder is closed thus facilitating the engagement of the prongs e with the locking mechanism. Rivets passing through apertures. g<SP>4</SP> and slots g<SP>5</SP> in the sliding bar secure the sliding bar mechanism to the cover and limit the movement of the sliding bar g.