baber/WOPTO huggingface dataset:
Patent GB-166361-A (GB)
Title: Improvements in loom shuttles
IPC: D03J5/00
Filed: 1920-04-17
Abstract: 166,361. Booth, J. W., and Corlass, T. C. April 17, 1920. Shuttles.-To protect the external weft from chafing by the shuttle box &c., a .slot is formed longitudinally in the side of a shuttle, of such a shape that the weft is guided and retained for the time being in such slot. The wall a of the shuttle 2 shown is constructed with a groove w and a metal cover-plate 3 curved at each end to act as a weft guide. A slot w<1> of shorter length than the groove w extends through the side wall of the shuttle. In operation, when the shuttle is projected with the eye 4 leading, the weft rides up over the plate 3 and into the groove w. On the reverse pick, the tension being released, the weft lying in the groove drops into the slot w', and then prevents entanglement by the other part of the weft doubling upon it. The plate 3 may be fixed by screws &c., but preferably the ends are bent round as at g to enter holes provided with buffer pieces 5. The plate may be dispensed with by cutting a suitably-shaped slot in the side of the shuttle.
Patent GB-1394474-A (GB)
Title: Isomerization of vitamin a compounds and their derivatives
IPC: C07C403/20
Filed: 1973-03-06
Abstract: 1394474 Isomerizing vitamin A BADISCHE ANILIN- & SODA-FABRIK AG 6 March 1973 [7 March 1972] 10709/73 Heading C2V A process for isomerizing cis-vitamin A compounds into the all-trans form consists in irradiating with light having a wavelength of at least 350 nm., an organic compound as a sensitizer which absorbs light of a wavelength more than 350 nm. and in which the energy difference between ionization energy and light excitation energy amounts to a maximum of 6 ev., in the presence of the cis-vitamin A compound present in liquid or dissolved form. In examples the starting materials are mixtures of all-trans- and 11-cis-vitamin A acetate, 11-cisvitamin A palmitate, 11-cis-vitamin A alcohol, 11-cis-vitamin A aldehyde, 11-cis-vitamin A acid ethyl ester and a mixture of vitamin A acetate isomers containing the 9-cis isomer; isomerization is carried out in solutions containing zinc tetraphenylporphine as sensitizer while irradiating with light of a suitable wavelength, by passing the light through a fabric dyed with Rhodamine B as sensitizer, the fabric being in a solution of the vitamin, and by bubbling an organic phase containing the vitamin through an aqueous solution of Basacryl Brilliant Red while irradiating. Other sensitizers are mentioned.
Patent GB-108203-A (GB)
Title: Improvements in and relating to Magnetos and like Electric Machines.
Inventor: KENNINGTON WILLIAM OSCAR
IPC: H02K21/10
Filed: 1916-07-28
Abstract: 108,203. Kennington, W. O. July 28, 1916. Magneto-electric machines; armatures; insulation. - The laminated core of a magneto or like armature is formed with a detachable pole-piece a<2> so that former-wound coils f, g may be readily mounted upon the core structure, the polepiece a<2> afterwards being slid into place. Two cup-shaped members n<1>, n<2> of insulating material may be threaded on the core to form a casing for the coils. Non- laminated extensions b<1>, b<2>, b<3>, b<4> are fixed to the pole-pieces by central rivets c<1>, c<2>, guiding-pins j being provided; these extensions are attached to the shaft end-disks l, m. Non-laminated steel bars of semi-circular cross-section may be riveted at the sides of the armature core.
Patent GB-626000-A (GB)
Title: Improved method of fabricating multi-component glass articles
IPC: C03B23/20
Filed: 1947-04-22
Abstract: 626,000. Welding glass. JOBLING & CO., Ltd., J. A., PURSER, E. J., JOBLING- COX, S. M., KIRBY, P. L., and MURDOCK, K. A. April 22,1947, No. 10747. [Class 56] In joining glass parts together by the application of heat, the surfaces to be joined are pre-treated with a substance which would reduce the liquidus temperature if added as a batch ingredient. B 2 O 3  may be applied by spraying as an ester of boric acid, or a solution thereof, e.g. as propyl borate, or as a 25 per cent (vol.) solution of n-propyl borate in anhydrous methyl alcohol, or cool glass parts may be held in the vapour of n-propyl borate until an adequate coating has condensed thereon; the film is allowed to hydrolyse in humid air before the parts are joined. In joining parts formed of glass of composition SiO 2  80 per cent, B 2 O 3  12.5 per cent, R 2 O (R=alkali metal) 5 per cent, Al 2 O 3  2.5 per cent by heating to between 600 and 1100‹C. a film of B 2 O 3  less than 0.1mm. thick may be applied to the junction surfaces. Alumina may be used instead of B 2 O 3 .
Patent GB-782158-A (GB)
Title: Improvements in or relating to securing means for mechanical members
IPC: F16B1/00
Filed: 1954-04-12
Abstract: 782,158. Cotters; dowels. ANREP, A. E. A. April 12, 1954 [May 15, 1953], No. 10753/54. Class 89(2) A male-member 4, Fig. 1, is coupled to a female-member 2 by pins 9 engaging channels formed by opposed grooves 5<SP>1</SP>, 6<SP>1</SP> and 5, 6, in the members, and a transverse rib or groove 8, Fig. 2, is provided on the male member to engage a groove or rib 7, respectively, on the female-member. The members may have differing thermal-expansion coefficients, e.g. member 4 may be of a refractory or an electrically-insulating material. As shown, member 2 is integral with the arm 1 of a clamp of glass-making machine.
Patent GB-182929-A (GB)
Title: Improvements in weighing scales
IPC: G01G23/30
Filed: 1921-04-13
Abstract: 182,929. Marks, E. C. R., (Toledo Scale Co.). April 13, 1921. Computing-apparatus.-The cylindrical chart of a weighing-scale is provided with an opening or window formed by a gap in a plate, extending obliquely outwards from the gap to the sides of the casing. The oblique plates 20, Figs. 2 and 4, closely approach the periphery of the cylinder 17 at the gap, and may be secured in position by flanges secured to the casing 19. Electric lamps 21 may be mounted in the casing above the plates, which reflect the light towards the weight indications on the cylindrical chart. A switch of known type is employed to switch on the lamps only when a weighing operation is in progress.
Patent GB-114381-A (GB)
Title: Improvements in or relating to Boiler Cleaners.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: F28G3/16
Filed: 1917-03-29
Abstract: 114,381. Jackson, W. J. Mellersh-, (Diamond Power Specialty Co.). March 29, 1917. Cleaning, fluid-pressure processes for.-Relates to means for cleaning boiler tubes by steam de. livered from a number of rotary jet-tubes or blowers, and is described in connexion with the system described in Specification 114,342. The blower units are rotated slowly through step-down gearing such as worm-gearing or spur-wheels 41. 42 operated by a chain 45 and pulley 44. Tc allow for expansion and contraction, the branch. pipes through which steam is conveyed to the blower units are connected by swinging connexions 34 to the steam supply-pipe 23. With the same object, the blower units pass loosely through eleeve members 48 in the supporting wall 47, a sliding joint being made between a disk 50 and cover-plate 51.
Patent GB-297756-A (GB)
Title: Monoxy-phenyl-alkyl-ketone derivatives
IPC: C07C49/16
Filed: 1927-04-22
Abstract: 297,756. Legerlotz. H. April 22, 1927. Alkylamino-oxyphenylalkyl ketones of the formula: C6H4(OH).CO.R.NHR<1>, where R represents a divalent aliphatic hydrocarbon residue, and R<1> an alkyl group, are obtained by treating monoxyphenylalkyl ketones which are halogenized in the side chain with primary aliphatic amines. The corresponding compounds in which the hydroxyl hydrogen atoms are replaced by alkyl or acyl groups may also be used as parent materials, the alkyl or acid groups being eliminated during or after the reaction by the usual methods. In examples (1) p - oxybromacetophenone is treated with methylamine in alcoholic solution; the p-oxymethylaminoacetophenone obtained may be purified by recrystallizing from alcohol or converting it into the hydrochloride and precipitating the base with ammonia, and (2) p-benzoyloxy-abromopropiophenone is treated with methylamine in alcoholic solution; after long standing and partial evaporation, p-oxy-alpha-methylaminopropiophenone crystallizes out and is converted into the hydrochloride. 'The products are intermediates for the preparation of pharmaceutical compounds. p-Oxybromacetophenone is obtained by brominating p-acetoxyacetophenone is carbon disulphide solution, and boiling the p-acetoxybromacetophenone thus obtained with aqueous alcohol to which a little hydrobromic acid has been added. p-Benzoyloxybrompropiophenone is obtained by benzoylating p-oxypropiophenone and brominating the benzoyl derivative in carbon disulphide solution.
Patent GB-680038-A (GB)
Title: Improvements in or relating to motor operated valves
Inventor: MARTIN-HURST WILLIAM FREDERICK
IPC: G05D23/275
Filed: 1950-05-03
Abstract: 680,038. Automatic speed control. TEDDINGTON CONTROLS, Ltd. May 3, 1951 [May 3, 1950], No. 10935/50. Drawings to Specification. Class 38 (iv). The speed of a reversible electric motor having two field-coils and operating a valve, e.g. a fuel valve, is controlled in each direction by including in each field current one of a pair of centrifugal governors having different settings whereby the valve can be opened slowly and closed quickly.
Patent GB-551004-A (GB)
Title: Improvements in reinforced concrete roof and like structures
IPC: E04B5/38
Filed: 1941-08-28
Abstract: 551,004. Roofs; walls &c. THOMPSON, R. M. Aug. 28, 1941, No. 11000. [Classes 20 (iv) and 87 (i)] Poured concrete 16 bonds with members 15 integrally incorporated with and projecting from precast concrete slabs 12. The slabs embody reinforcement 14, and further reinforcement 17 is placed in the layer 16 over intermediate supports 10. The bonding members 15 may be formed with or connected to the reinforcement 14. The bonds 15 may be grouted in holes in the partly set slabs by inverting over and pressing into the latter a board with tubular projections which remove cylinders of material. The holes are then widened at their bases before inserting the members 15. According to another method expanded metal 14 is cast in the slabs 12, Fig. 4. After setting, the reinforced slab is inverted and the originally unlying strips 151 raised and bent to the form 15, Strips 20 secured to the I- girders 10 may be connected to the reinforcement 17, or a length of steel rod bent in zig-zag fashion may be spot-welded to the top flange of the girder.
Patent GB-690410-A (GB)
Title: Improvements in or relating to keying control circuits for radio transmitters
Inventor: WATT JAMES
IPC: H04B1/46
Filed: 1951-05-10
Abstract: 690,410. Radio transmitting systems; keying carrier frequencies. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 31, 1952 [May 10, 1951], No. 11073/51. Class 40 (v). An on-off control circuit for a radio transmitter comprises a control valve with high negative feed-back and with the on-off control voltage applied to its grid in such manner that in the " off " condition the control valve is fully conductive and provides a low impedance or short-circuit across the output leads of the carrier source, and in the " on " condition the control valve is blocked and allows the carrier to pass to the aerial or amplifier. The control voltage is provided by a key for telegraphy, and by rectified speech signals for telephony. In telegraphy, the system permits " listening through " on a nearby receiver, and in telephony a quick change-over from reception to transmission on the same wavelength. In Fig. 1, carrier output from a crystal-controlled source 2 is fed from the anode of the valve across a resistor 13 to the grid of an amplifying-valve 9. The resistor 13 is in the cathode lead of the control valve, the anode and grid of which are held at zero carrier voltage by condensers 14, 15 coupling them to an earthed screening casing SB. When the valve 5 is blocked, carrier is fed through condensers 6, 7 to the amplifier 9. When the valve 5 is unblocked by positive voltage from a source 18, it acts as a lowimpedance shunt across the anode lead from the oscillator 2 and carrier transmission ceases. The source 18 may be controlled by a key for telegraphy, or by rectified speech currents for telephony, the absence of speech currents, by removing the carrier, leaving a transmit-receive set free for the reception of signals. In a modified circuit, Fig. 3, the oscillator anode is connected through condensers 20, 21 to the grid of the control valve 5, and through condenser 20 and resistor 29 to the anode of the valve 5 which is directly connected to the grid of the carrier amplifier valve 9. The cathode of the valve 5 is earthed for carrier frequency by a condenser 25 and is held positive by a D.C. source 24. In the sending condition, the valve 5 is blocked. When, however, speech ceases, the valve 5 is unblocked by positive voltage applied to its grid from the source 18, the valve forms a low impedance shunt across the oscillator output, and the passage of anode current from the battery 27 through the resistor 26 back-biases the grid of the carrier amplifier 9. The resistor 29 should have a value approximately equal to the reciprocal of the mutual conductance of the valve 5. It may, however, be omitted, Fig. 2 (not shown). A more detailed diagram, Fig. 4 (not shown), shows the valves 2, 5 in a single envelope, and indicates an arrangement of the cathode heater circuits for the three valves 2, 5, 9.
Patent GB-1417983-A (GB)
Title: Joint system
IPC: F16B7/18
Filed: 1972-03-09
Abstract: 1417983 Screw-threaded joints; pipe couplings; shaft couplings; structural joints BRITISH STEEL CORP 9 'March 1973 [9 March 1972] 11084/72 Headings F2H F2G F2U and F2M To fasten two members 10, 12, e.g. space frame members, control rods, power transmission shafts or pipes, end to end each of two members 14, 16 integral with or connected to the members 10, 12 is provided with two coaxial threaded portions 20, 22 and 24, 26 of opposite hand and/or different pitch, and at least one locking member is provided with at least one threaded portion, the members 14, 16 being such that when assembled coaxially with the locking member(s), only limited, if any, rotation between the members 10, 12 is possible. In the embodiment shown in Fig. 5 each of the members 14, 16 has an externally left-hand threaded portion 20, 24 respectively and an internally right-hand threaded portion 22, 26 respectively. An outer locking sleeve 32 has an internal lefthand thread and an inner locking plug or sleeve 28 has an external right-hand thread. Alternatively all the threaded portions 20, 22, 24, 26 can be of the same hand with the portions 20, 24 being of the same pitch which however is different from the common pitch of the portions 22, 26. To join the members 14, 16, the sleeve 32 is screwed over the portion 20 and the sleeve 28 is screwed wholly into the portion 22. The portions 22 and 26 are then aligned, and by engaging a groove 30 in the sleeve 28, the sleeve 28 is screwed out of the portion 22 partially into portion 26 until a central mark 34 is visible in the gap 36 between the members 14, 16. Finally the sleeve 32 is screwed from portion 20 partially on to the portion 24 to bridge the gap 36. Grouting material can be applied to the interengaging threads of the members 14, 16 before assembly of the joint or, in a fluid form, introduced through a nipple 40 in sleeve 32, after assembly, to prevent any rotation between the members 14, 16 due to manufacturing thread tolerances. Instead of using grouting material to prevent such rotation, locknuts or locking rings can be used at each end of the sleeve 32 and the sleeve 28. Alternative embodiments are described (Figs. 2-4, not shown) in which only a single locking sleeve is used, one of the members 14, 16 having a threaded portion of reduced or enlarged diameter about which or in which the other of the members 14, 16 fits.
Patent GB-579948-A (GB)
Title: A process for the manufacture of derivatives of 3-oxo-4-hydroxy-thiophane and of their dioximes and osazones
Filed: 1944-06-09
Abstract: 3 - Oxy - 4 - hydroxythiophane derivatives, carrying aliphatic substituents (X) in position 2, thus: <FORM:0579948/IV/1> the substituent X being -(CH2)n-R, n being from 1 to 4 and R representing -O-alkyl, carboxyl or an alkyl ester thereof, are obtained by halogenating thiophane-3-one derivatives similarly substituted in position 2; the corresponding dioximes and osazones are obtained.  In examples: (1) 2-(b -carboxyethyl)-thiophane-3-one, in water, is treated with bromine vapour at 0 DEG  C. in presence of calcium carbonate, and the diluted product is saturated with sodium chloride to isolate 2 - (b  - carboxyethyl) - 4 - hydroxythiophane - 3 - one. The corresponding dioxime is obtained by heating the aqueous hydroxy-keto acid with hydroxylamine hydrochloride and potassium acetate on a water-bath, and the corresponding phenyl osazone is isolated by treatment with phenylhydrazine; (2) 2 - (d  - methoxybutyl) - thiophane - 3 - one is brominated at 0 DEG  C. in stirred aqueous methanol containing calcium carbonate and the reaction-mixture is set aside for 36 hours at 18 DEG  C., prior to isolating the crude hydroxy-ketone by ether-extraction.  The corresponding dioxime and phenyl osazone are obtained as in (1).  A sample has been furnished, under Sect. 2 (5), of 2-(d -carboxybutyl)-4-hydroxythiophane-3-one, obtained by brominating 2-(d -carboxybutyl)-thiophane-3-one in aqueous methanol at 0 DEG  C. in presence of calcium carbonate.  The Specification as open to inspection under Sect. 91 comprises also the cases where, in the residue -(CH2)n-R, R represents -OH or -CN.  This subject-matter does not appear in the Specification as accepted.
Patent GB-312455-A (GB)
Title: An appliance for obtaining contours of railway or tramway rails, and the like, when in or out of the track
IPC: G01B5/20
Filed: 1928-04-16
Abstract: 312,455. Stoker, G. April 16, 1928. Surface and outline gauges.-An appliance for obtaining contours of railway rails and the like has a frame a in two parts, cut out in its interior and approximately in the form of the contour of the rail. One surface of the frame is flat to receive thin sheets of material b, capable of taking a scribed line, which are fixed to the frame by screws e. The frame is held to the rail by ties c of coil springs and screws combined fitted with wing nuts. One end of each tie is fixed to one half of the frame and forked ends d are provided in the other half to receive the loose ends of the ties. Scribers are pressed against the rail and the sheet at the same time and drawn round the perimeter of the rail to mark on the thin sheets of material an outline from which the true outline of the rail can be obtained. The scribers are of spherical form as shown in Fig. 3, or of circular disc form as shown in Fig. 4, or of circular disc form to guide a pencil scriber f, Fig. 5, round the rail. After marking, the sheets are taken off the frame and fixed to a sheet of paper in the same relative position as when on the appliance and a line at a distance equal to the distance of the scribed line from the rail surface is drawn within the figure made by the scribed line. The line is the true contour of the rail. With the scribers shown in Figs. 3 and 5 this distance is equal to the radii of the scribers whilst with the scribers shown in Fig. 4 the distance is equal to the diameter of the scriber.
Patent GB-1378815-A (GB)
Title: Method and apparatus for preventing erosion and for conveying
IPC: E02B3/04
Filed: 1972-03-10
Abstract: 1378815 Preventing erosion; underwater tunnels GRAY TECH INDUSTRIES INC 10 March 1972 [12 March 1971] 11190/72 Heading E1H [Also in Division F2] In a method of preventing erosion by tidal waves, an elongate tubular structure comprising. a plurality of units 1 is laid on the sea bed, each unit 1 comprising a substantially semicylindrical wall 5, a floor 2 having protruding side portions 3, 4 and a pair of parallel depending footings 7. The latter have conduits 11 therethrough via which pressurized fluid may be passed to facilitate sinking of the footings into the ground. Alternatively, drilling tools may pass through the footings 7. The units 1 are linked together by tensioned rods or cables 16. As shown the units may have a plurality of apertures 8, 9 through which waves may pass depositing sand and the like within the units. In another embodiment, Figs. 3, 4 (not shown) the structure forms a tunnel and is provided with a horizontal partition suspended by rods from the roof of the structure to form a ventilating duct communicating with the space below by slots in the partition. The units are preferably cast concrete or reinforced concrete. The complete structure may house fluid pipes or the like, or may itself act as a conduit.
Patent GB-163034-A (GB)
Title: Improvements in and relating to hydroplane vessels, hydro-aeroplanes and the like
IPC: B64C35/00
Filed: 1921-04-18
Abstract: 163,034. Bell, A. G., and Baldwin, F. W. May 7, 1920, [Convention date]. Propelling by aerial propellers; rudders. -In hydroplane vessels, hydro-aeroplanes, &c. employing sets of submerged hydrofoils at each side forward, the propulsion system consists of external side casings 26, 27, each having two sets of motors with aerial propellers and a similar arrangement centrally disposed at the stern but with a single motor. The side motor casing are carried by upright members 30, 32 and supported by suitable struts 33, 34 from the hull. A combined supporting and steering hydrofoil set, comprising spaced vertical struts with horizontal blades supported thereon, is centrally and pivotally supported at the stern near the rear propeller.
Patent GB-527922-A (GB)
Title: Artificial product imitating skin and leather and method of making same on paper and cardboard making machines
IPC: D21H17/14
Filed: 1939-04-13
Abstract: 527,922. Artificial leather. DURAND, G. H. VULLIET-, April 13, 1939, No. 11202. Convention date, April 13, 1938. [Class 96] Imitation skin or leather is made by adding to vegetable or animal fibrous pulp, e.g., straw or cotton, one or more metal salts of organic fatty acids, e.g., aluminium, magnesium, zinc or bismuth salts of capric, caproic, caprylic, erucic, lauric, linoleic, linolenic, myristic, oenanthic, oleic, palmitic, pelargonic, ricinoleic, ricinic, stearic, tridecyclic, undecyclic, with or without a colloid, mucilage, rubber &c. and sheeting on a paper or cardboard-making machine. The product may be painted, coated, impregnated, coloured, varnished, grained &c. The metal salt of the fatty acid may be precipitated on the fibre by double decomposition, e.g., using the sulphate, acetate, chloride &c. of zinc &c. with an alkaline stearate &c. Reference has been directed by the Comptroller to Specification 440,026.
Patent GB-641034-A (GB)
Title: Improvements in or relating to appliances for the prevention of horn growth in horned animals
IPC: A01K17/00
Filed: 1948-04-23
Abstract: 641,034. Electric searing appliances. OLIVER PELL CONTROL, Ltd., OLIVER, G. F. N., COOPER-STEWART ENGINEERING CO., Ltd., and ROWE, J. E. April 23, 1948, No. 11273, [Class 39(iii)] [Also in Group VI] A device for preventing the growth of horns in horned animals comprises a metal bit, shaped to fit over the hbrn bud and electrically heated and thermostatically controlled. A copper bit 11, of circular cross section and having a central recess 16, is heated by an element 12, the circuit to which includes an adjustable contact 34 and a spring contact 36, the supporting blade of which is controlled through a push rod 23 by a bi-metallic strip 22. Increasing temperature causes the strip 22 to bend towards the left and press on the rod 23 so as to open the contacts. The temperature at which the circuit is broken may be set by appropriately adjusting the screw contact 34. The device is enclosed in tubular sheaths 17, 40, the latter being heat-insulated by a layer of lagging 46, and there is an outer tubular gripping member 47 spaced from the casing 40. It is proposed that the device should be operated either from a 12 volt battery or through a step down transformer from the mains. To provide for animals of various sizes and ages, tubular extension pieces may be clamped on to the bit, see Fig. 2 (not shown).