baber/WOPTO huggingface dataset:
Patent GB-777163-A (GB)
Title: Tetrahydroisoquinoline derivatives and process of making same
Filed: 1955-03-14
Abstract: The invention comprises 1,2,3,4-tetrahydro-isoquinoline derivatives of the formula <FORM:0777163/IV(b)/1> wherein R is an ortho-substituted phenyl group, the substituent being an alkyl or alkoxy group of 1-3 carbon atoms, or R is a carboxylic acid alkyl ester group of 2-4 carbon atoms or an amide group of the formula -CO-NR1R2 wherein R1 and R2 are hydrogen atoms or alkyl groups of 1-4 carbon atoms; and their preparation by condensing 1,2,3,4-tetrahydro-isoquinoline with an allyl alcohol ester of the formula X-CH2-CH=CH-R wherein X is a halogen or a sulphonic acid ester group, the compounds when R is an ester group so formed being converted, if desired, by known methods into the corresponding amides.  Suitable sulphonic acid esters are benzene and toluene sulphonic acid esters.  The reaction is preferably carried out in an inert solvent such as ethanol, ether, benzene, toluene or dioxan, advantageously either an excess of the amine being used or a condensing agent such as an alkali metal or a hydride or amide thereof being employed, preferably at elevated temperature.  Examples describe the preparation by one or more of the above methods of compounds of the above general formula and their hydrochlorides, wherein R is methoxycarbonyl, isopropoxycarbonyl, o-methylphenyl and o-methoxyphenyl.  The preparation of g -(N-1,2,3,4-tetrahydroisoquinolyl)-crotonic acid by saponification of its methyl ester and its conversion to its isopropyl ester by esterification with isopropanol are also described.  The following amides of the above general formula are also described: unsubstituted amide, monomethyl-, mono-n-propyl-, mono - iso - propyl-, mono - sec. - butyl-, diethyl-, di - n - propyl- and di - n - butyl-amides as the free amides and/or their hydrochlorides.  Other acid addition salts with both inorganic and organic acids and their preparation are also referred to.ALSO:A therapeutic composition comprises a 1, 2, 3, 4-tetra-hydro-isoquinoline derivative of the formula <FORM:0777163/VI/1> wherein R is an ortho-substituted phenyl group, the substitutent being an alkyl or alkoxy group of 1-3 carbon atoms, or R is a carboxylic acid alkyl ester group of 2-4 carbon atoms or an amide group of the formula - CO - NR1R2 wherein R1 and R2 are hydrogen atoms or alkyl groups of 1-4 carbon atoms together with a solid or liquid carrier.  Liquid diluting agents referred to are water and isotonic saline solutions, solids being sugar, lactose, talcum, starch and bolus alba.  Binders for the preparation of shaped solid preparations include pectin, gelatin, gum arabic, methyl cellulose, yeast extract, agar and tragacanth. The compounds are preferably administered as salts with inorganic or organic acids e.g. citric acid.
Patent GB-115706-A (GB)
Title: Improvements in and relating to Carburettors.
Inventor: WESTBURY EDGAR THOMAS
IPC: F02M7/22
Filed: 1917-05-25
Abstract: 115,706. Westbury, E. T. May 25, 1917. Spray carburettors.-A suction-actuated piston b<1> controls the secondary air-supply inlets k, and a fuel orifice c<1> is controlled by a tapered needle d operated by, but not rigidly attached to, the piston b<1>. Means is provided for regulating the strength of the fuel mixture without affecting the automatic action. The nozzle c<1> supplies fuel from a float chamber e to a cylindrical wick d<2> of asbestos and copper gauze, over which passes the primary air supply from inlets i in the base. The piston b<1> carries a choke-tube b<2>, b<3> fitting in the tube a and having air inlets h<1>, b<5> and normally resting on a seating a<4>. The inlets h<1> have inclined upper edges and co-operate with the inlets k to control the secondary air supply. The inlets b<3> admit air, which passes the seating a<4> when the piston is raised by suction. The piston b<1> controls the fuel-regulating needle d by means of an eccentric fulcrum h, which bears against a lever g<1> engaging an adjustable collar g<3> on the needle d. The lift of the needle d is controlled by rotating the piston b<1> by means of an arm f<1> carried by a rotatable collar f, which has air inlets coacting with the inlets k, h<1>, and carries a pin f<2> engaging in horizontal and vertical slots a<2>, b<4> in the members a, b<2>.
Patent GB-651222-A (GB)
Title: Improvements in or relating to ground-engaging means of vehicular endless tracks
IPC: B62D55/27
Filed: 1948-03-12
Abstract: 651,222. Vehicular endless tracks. URANUS TRAKTOREN AKT.-GES. March 12, 1948, No. 7563. Convention date, March 29, 1947. [Class 79 (i) ] In a vehicular endless track in which U-section shoes are secured to the track elements, the side flanges of the shoes are provided with laterally projecting guides adapted to receive leg portions of tread supports and locking means are provided for detachably securing the tread supports to the shoes, the guides on the shoes project laterally beyond the leg portions of the supports and the locking means so as to protect them. As shown in Fig. 2 the locking means is formed by the leg portions of each support 5 being each provided with an aperture 9 which is bridged by a cross bar 12 secured to the leg portion. The bar 12 is adapted to engage a cross bar 11 secured to the guides 3, 4 secured to the shoe 2. In another form of the locking means, Fig. 3, the side flanges of the shoe 2 are each provided with a projection 10 adapted to engage the aperture 9. In a further form, Fig. 4, the locking means is formed by each leg portion carrying by means of a spring 13 carrying a cross bar 14 adapted to enter the aperture 9 and also to engage the lower edges of lugs 15 formed on the guides 3, 4. The tread support may be formed with calks 6 or the leg portions may be interconnected by a plate 7t or by snow chains. The tread support is supported by a carrier member, for example a rubber cushion 8, on the shoe. The tread supports are preferably secured on the shoes adjacent that link-pin 16 which, during forward movement of the vehicle, first reaches and leaves the ground. Means, such as a depression 18 engaging a groove 19, or a stud 20 coacting with a bore 21, may be provided on the shoes 2 and on link straps 1 in combination with the shoes fastening means to facilitate easy replacement of the shoes. The flanges of the shoes may be provided with lubricating apertures 17 in line with the link pin 16. Specification 538,585 is referred to.
Patent GB-625955-A (GB)
Title: Improvements in dental engine hand pieces
IPC: A61C1/14
Filed: 1947-03-19
Abstract: 625,955. Dental handpieces. BJORKLUND, G. E, March 19, 1947, No. 7571. Convention date, March 20, 1946. [Class 81(ii)] A dental handpiece of the type in which the tool is held in a chuck sleeve disposed at an angle to the driving shaft, the chuck sleeve being driven from the driving shaft through a gear on the sleeve located between bearings carrying the sleeve, is characterized in that the bearing between the gear and the tool point is adapted to take axial thrust whilst the bearing at the other end of the sleeve serves solely to take radial thrust. A gear casing 3 carries a split bush 11 which acts as an axial and radial bearing for chuck sleeve 7. A flanged portion of the bush cooperates with a flanged portion of the chuck sleeve 7, an axial thrust bearing thus being formed and the flange 12 also serving as a thrower ring for swarf &c.. The upper end of the chuck sleeve is journalled in a sleeve 10 which acts as a radial thrust bearing and may be made of bronze or similar bearing metal. Specification 625,954 is referred to.
Patent GB-565738-A (GB)
Title: Improvements in locking devices for rotary control shafts
IPC: H03J1/14
Filed: 1943-05-17
Abstract: 565,738. Adjusting wireless apparatus. KOLSTER-BRANDES, Ltd., CUNDY, R. W., and WETHEY, E. P. May 17, 1943, No. 7812. [Class 37] A locking device for a rotary control shaft comprises on said shaft a manipulating device movable around and along the shaft and frictionally engaged with the shaft; and an operable arrangement for forcing the mani pulating device against a surface to lock said manipulating aevice against said surface to render them relatively immovable. The Figure shows the invention applied to locking the coarse and fine adjusting knobs C, D of a variable condenser. The coarse tuning knob C is fixed to spindle A while the fine tuning knob D is frictionally coupled to coaxial spindle B by means of a spring L. To the enlarged end of spindle B is fixed a screwthreaded rod G on which is screwed a knob J, which can be screwed down after an adjustment has been made to force knob D into locking engagement with knob C. A smooth washer M prevents rotary movement being transmitted from knob J to knob D. A spring K ensures that knob J engages the screw-thread on rod G after it has been unscrewed. For locking a single shaft, the knob D is arranged to be moved by knob J into-engagement with a fixed surface.
Patent GB-311502-A (GB)
Title: Improvements in electric-motor-driven centrifugal pumping units
IPC: F04D13/06
Filed: 1928-03-15
Abstract: 311,502. Drysdale& Co., Ltd., and Drysdale, W. March 15, 1928. Pumping-machines; casings; impeller blades; regulating; motors, cooling.-An electric - motor m driving a centrifugal pump is enclosed in a weatherproof bell d secured to a fixture on the top of the pump casing j, and means are provided for circulating air upwards through the m'otor and downwards between the motor and the bell through air inlet and outlet valves which open automatically when the motor is running. As shown, air inlet valves h engaging seatings x are carried on the motor shaft by pivoted arms c, f, g having weights w, the centrifugal action of which causes the valves h to open. Balanced flap valves z on the motor are opened by the air current. The ventilating fan vanes v are fixed on the pivoted arms f, g carrying the inlet valves h. The pump has a vertical suction pipe band a horizontal discharge pipe c.
Patent GB-380373-A (GB)
Title: Improvements in apparatus for heating garages and other buildings, in which explosive or easily ignitable fluids may accumulate
IPC: F24H3/00
Filed: 1932-03-17
Abstract: 380,373. Gas heating-stoves. TAP, G., 77, Katwijkstraat, Scheveningen, The Hague. March 17, 1932, No. 7952. Convention date, April 23, 1931. [Class 126.] A garage or other building containing combustible material is heated by a hotwater radiator 1 the back of which closes an opening in the wall 11. The radiator is integral with water jackets 5 covering the top and sides of the wall opening, and is connected to a pipe coil 7 heated by a gas burner 6. The water jackets are provided with bolts 8 passing through a frame 9 whereby the radiator may be drawn closely against the wall opening. The burner is accessible only from outside the building, and is separated therefrom by a removable partition 14 and insulated door 13. Air for combustion is supplied through a passage 17, and combustion products are drawn off through an opening 15 in the water jacket, and a passage 16. A pilot burner 19 or electric ignition may be provided, and a thermostatic control 21 may be provided on the pipe 20.
Patent GB-844290-A (GB)
Title: Improvements in and relating to hinges
IPC: A47C7/60
Filed: 1957-03-11
Abstract: 844,290. Bracket seats. POWER, F. B. Oct. 15, 1957 [March 11, 1957], No. 7964/57. Class 52(5) [Also in Group XXV] A seat supporting member 11, e.g. for a school desk seat, is attached to a ring 10 which is pivoted on a pin 15 between the rings 12, 13 of a bifurcated bearing 14 fixed to the seat supporting frame, and a stop 26 is provided on the bifurcated bearing to co-operate with a stop 24 on the ring 10 to limit the downward movement of the seat. The stop 26 is a screw which enables the inclination of the seat to be adjusted, and a second stop 23 on the ring 10 limits the upward movement of the seat. The bifurcated bearing 14 is secured to the pin 15 by a screw located in a tapped hole 21, and is fixed to a radial arm 16 adjustably clamped by a screw 22 to a vertical post 18. When two independent seats are carried by the pin 15 four supporting members 11 are provided, the intermediate members being pivoted in bifurcated bearings 20 not fixed to a radial arm.
Patent GB-491974-A (GB)
Title: Improvements in or relating to pistons
IPC: F02F3/10
Filed: 1937-03-18
Abstract: A piston formed from an aluminium base alloy containing 10-19 per cent of silicon, 0,5-5 per cent of copper, 0,2-3 per cent of magnesium, and 0,3-5 per cent of nickel, with or without 0,1-1 per cent of manganese, is provided with an oxide coating.  A preferred alloy contains 12 per cent of silicon, 0,8 per cent of copper, 1,2 per cent of magnesium, and 2,4 per cent of nickel.  The piston may be oxidized chemically but is preferably immersed as anode in a bath containing sulphuric acid, preferably 20 per cent and oxalic acid, preferably 5 per cent, and a current of 13 amps. per square foot is applied at 14 volts for thirty minutes.  Lubricant may be applied to the oxide coating. Specification 409,679, [Group XXXVI], is referred to.
Patent GB-831273-A (GB)
Title: Valve diaphragms
Inventor: MCFARLAND ROLLAND
IPC: F16K7/12
Filed: 1956-03-14
Abstract: 831,273. Diaphragm valves. HILLS-Mc- CANNA CO. March 14, 1956, No. 7999/56. Class 135. In a diaphragm valve having a body 29, Fig. 6, and a bonnet 27 between which is clamped a diaphragm 1 engageable with a weir 41 to close the valve, the diaphragm which is made from synthetic organic plastic material more resistant to chemical action but less flexible than rubber or the synthetic elastomers, e.g. neoprene, from which such diaphragms are usually made is formed around its periphery on both faces with narrow continuous beads 13, 13, Fig. 4. The bowl 5 is formed with arcuate corrugations 7, Fig. 3. A diametric rib 12 having a narrow bead 14 is formed on its lower surface for engagement with the weir and a nubbin 15 embedding a square-headed bolt 21 connects the diaphragm to a compressor plate 23 which is in turn connected to an operating spindle 37. Suitable materials from which the diaphragm may be made are nylon, exon, and ameroid. In a modification, the diaphragm is made rectangular with bolt-holes through which pass the clamping bolts located at its rounded comers. The corrugations in this construction are dispensed with and the beads 13, 131 are formed to enclose the bolt-holes. Further beads 58, Fig. 10, may be formed on the " dry " face of the diaphragm in from the bolt-holes and merging at both ends with the bead 13<SP>1</SP> and the nubbin 60 may be screwthreaded for connection to the compressor plate in lieu of the bolt fixing 21.
Patent GB-731931-A (GB)
Title: Electro-magnetic switches
IPC: H01H50/04
Filed: 1952-03-29
Abstract: 731,931. Electromagnetic switches. HOLLANDER, J. M. March 13, 1953 [March 29, 1952 ; June 16, 1952], Nos. 8060/52 and 15057/52. Class 38 (5). A switch comprises a number of insulating body portions 12 each having pairs of spaced cheeks 30, 31 between which fixed contacts 13 are held by screws 14. Each portion 12 has holes 35 on one side and projections (Fig. 7, not shown) on the other side so that the desired number of portions 12 may be assembled side-by-side and located by the inter-engagement of the holes 35 and projections. Fig. 2 shows two portions 12 symmetrically arranged on each side of a central element 11 and between end plates 17 having mounting flanges 18, the element 11 and plates 17 being similarly provided with locating holes and projections, and the assembly being held together by a pair of bolts 37 passing through aligned holes 37a. Arms 22 pivoted to the end plates 17 carry a bar composed of insulating portions 40, 41, 42, 46 held together by a pair of bolts 44. Certain of the portions 40 carry stirrups 50 having spring-loaded normally-open bridging contacts 24, Fig. 4. Portion 41 carries an electromagnet armature 26 journalled on a pin 58 anchored in supports 59, whereby the armature may correctly engage the magnet 60 mounted on the body element 11. When the magnet is energized the parts have the positions shown in the drawing. The portions 12 with the contacts 24 are modified, Fig. 4, by removal of a web 57 (Fig. 5) and by the provision of slots 55 for receiving a plate 54 which guides the stem 53 of the contact. In a modification (not shown) in which each portion 12 carries a single fixed contact, the bar may be directly pivoted to the body parts and have movable contacts extending laterally therefrom. Reference has been directed by the Comptroller to Specification 697,511.
Patent GB-1452737-A (GB)
Title: Process for dyeing polymer substrates
IPC: C08J7/043
Filed: 1975-02-26
Abstract: 1452737 Dyeing polymers HOOKER CHEMICALS & PLASTICS CORP 26 Feb 1975 8123/75 Heading D1B Polymer substrates are dyed by first forming a coating on the substrate of a phosphorus sulphide in which the phosphorus has a valence of less than 5, the coated substrate then being dyed with an aqueous liquor containing an organic dyestuff and at least one part by weight of a lignin sulphonate per part by weight of dyestuff. Preferably the phosphorus sulphide is applied in an organic solvent e.g. perchloroethylene. The substrate is dyed preferably in an aqueous alkaline liquor with a basic dye. Substrates dyed are polyester, polypropylene, polyethylene and polyvinylchloride. A washing of the substrate before coating with the phosphorus compound is desirable.
Patent GB-739519-A (GB)
Title: Gate valve construction
IPC: F16K3/12
Filed: 1954-03-19
Abstract: 739,519. Valves. HAMER, L. S. March 19, 1954, No. 8147/54. Class 135. In a sliding gate valve, the annular opposed seats C, Figs. 1 and 5, carry packing rings G which are engaged by retaining rings D, the latter being held in position by keys F. The invention is shown applied to a wedgeshaped gate B the edges of which are provided with grooves to run on ribs 72, Fig. 7, on the keys. The lower ends 76 of the keys are inclined so as to wedge between the rings D as they are pushed down into position. Springs seated in recesses in the cover 14 of the valve casing press on the upper edges of the keys to hold them in position. The rings G are of rubber, neoprene, teflon, &c.
Patent GB-683750-A (GB)
Title: Supplementary apparatus for microscopes
IPC: G02B25/00
Filed: 1951-04-09
Abstract: 683,750. Microscopes. ZEISS - OPTON OPTISCHE WERKE OBERKOCHEN GES. April 9, 1951 [April 15, 1950], No. 8163/51. Class 97 (i). A supplementary apparatus containing one or more further optical elements to be inserted into the optical path of a microscope having a removable eyepiece tube is characterized in that it is so shaped that one side of the apparatus can be fitted to the portion of the microscope from which the eyepiece tube has been removed, and the other side can accommodate the said tube. As shown, the apparatus comprises a plate a having a conical turning a2 fitting into a corresponding formation in the microscope, and has a bolt b on which is rotatable a disc c carrying a number of optical elements. The plate also carries a rim a<SP>1</SP> supporting a closure cap f having a formation f<SP>2</SP>, similar to the turning a2, into which the ocular may be fitted. The rim a<SP>1</SP> has an aperture through which a portion c<SP>1</SP> of the disc c projects to allow rotation thereof. As described the disc c has five apertures which can be aligned in turn with the axis of the microscope, one aperture being clear, two containing Galilean telescope systems, of which one comprising lenses d<SP>1</SP>, d<SP>2</SP> is shown, for varying the magnification of the microscope, and the other two containing lenses imaging the rear focal plane of different objectives which may be used, in the ocular focal plane for use in systems employing polarized light or phase contrast. A negative lens g in the plate a renders the light from the objective substantially parallel, while a positive lens h forms the image in the ocular, thereby compensating for the displacement of the latter due to the thickness of the supplementary apparatus.
Patent GB-641759-A (GB)
Title: Lightweight blade structure for aircraft-sustaining and other air rotors
IPC: B64C27/473
Filed: 1948-03-19
Abstract: 641,759. Rotor blades. AUTOGIRO CO. OF AMERICA. March 19, 1948, No. 8201. Convention date, March 22, 1947. [Class 4] A rotor blade comprises a tubular spar, blade skin and transverse rib elements and an elongated shear strip adhesively secured to the spar, skin and ribs and transmitting a substantial part of the centrifugal load on the skin and ribs to the spar. In the embodiment shown, shear strips 7 and 8, preferably extending throughout the length of the tubular main spar 6, are adhesively secured to the spar. Ribs 9 are adhesively secured to the shear strips and to the spar. Each rib has a core of lightweight porous material between thin wooden plies. A wooden nosepiece 13 is rabbeted to receive the blade skin comprising a lightweight porous core 14 covered by sheets 15, 16 of paper, fabric or like material. The skin is formed in two portions glued together at the trailing edge. Conduits 17, 18 disposed within the grooved nosepiece supply fluid to a blade tip jet. In a further embodiment, Fig. 5 (not shown), shear strips are located above and below instead of in front of and behind the spar.
Patent GB-557339-A (GB)
Title: Improvements in and relating to the production or separation of dicyclopentadiene
IPC: C07C7/05
Filed: 1942-06-16
Abstract: 557,339. Dicyclopentadiene. YORKSHIRE TAR DISTILLERS, Ltd., and MILNER, D. W. June 16, 1942, No. 8241. [Class 2 (iii)] Dicyclopentadiene is separated from mixtures containing it, such as the " front runnings" obtained in the distillation of crude benzole, by subjecting the mixture to fractional distillation in the presence of water whereby a constant boiling mixture of dicyclopentadiene and water is obtained as a distillate, and crystallizing.
Patent GB-230645-A (GB)
Title: Improvements in conveyors, elevators and creepers
IPC: B65G39/09
Filed: 1924-04-01
Abstract: 230,645. Williams, R. A. April 1, 1924. No Patent granted (Seating fee not paid). Ball and roller bearings.-Each end of the hollow spindle f of a conveyer, elevator or creeper roller is formed with slots g in order to permit expansion when the tapered supporting members h, k are inserted. The member k is held in position by nuts l. Each end of the roller is closed by a member b in which is fitted tightly the outer member of a ball or roller race c. A spring e bearing against the race c maintains a felt washer d in position against the end of the member b. A press-button or other lubricator m is provided at each end.
Patent GB-1122362-A (GB)
Title: Improvements in or relating to high temperature heating elements
IPC: H05B3/00
Filed: 1966-02-24
Abstract: 1,122,362. Resistance heating elements. METALLWERK PLANSEE A.G. 24 Feb., 1966 [25 Feb., 1965], No. 8274/66. Heading H5H. A high temperature heating element is composed of wires of Mo or W to which alkali silicates or thorium oxide may be added, twisted together to form filaments which are arranged to form a fabric, mesh, net or grid. The filaments may be coiled and the element formed by linking a number of coils or by weaving the filaments into fabric. Manufacture may be carried out at 200-500‹ C. The ends of the coils or of the fabric are welded or riveted to U-shaped support plates of similar material which act as terminals. A number of elements may be arranged to form a cylinder, connected in series or series parallel and supplied with single or polyphase A.C. in a furnace operating under vacuum or with a protective gas.