baber/WOPTO huggingface dataset:
Patent FR-2020287-A1 (FR)
Title: Catalyst system for production of high molecular weight - polyethylene at high reaction temperatures
IPC: C08F2/00
Filed: 1969-09-26
Abstract: A catalyst system for the liquid phase polymerisation of ethylene or its copolymerisation with a 3-8C olefin, contains (A) chromum oxide (in which at least part of the chromium is hexavalent at initial contact with the monomer) supported on at least one oxide from silica, alumina, zirconia and thoria, (B) 0.1 to 4.8 parts (per part of (A)) of at least one from silica, alumina or an aluminosilicate, and optionally as activator (C) 1 to 20 moles (per mole of Cr) of AlR3 where R is 1-12C (cyclo)alkyl and/or aryl group. The polymer produced has a lower melt index than would have normally been obtained at the polymerisation temp. used. Higher temps. are therefore possible for preparing polymer of a desired molecular weight and regulation of the reaction by cooling is made easier. Specifically (B) contains 70 to 95% of silica and has a particle size corresponding to that of (A). After use reactivation is by heating in N2 at 482-1093 degrees C, esp. 538 - 816 degrees C, for 1 to 25 hours, especially 4 to 16 hours. In particular 0.5 to 4 parts of (B) are used per part of (A). (A) is described in US. patent 2825721 and especially contains 0.1 to 10 parts of chromium oxider per 100 parts of silica. Polymerisation conditions are generally 66-232 degrees C and 1-137 atmospheres. Times are 0.1 min to 10 hours. 0.01 to 10% of (A) is used based on monomer.
Patent FR-2026392-A1 (FR)
Title: Central heating flue element
IPC: E04F17/02
Filed: 1969-09-30
Abstract: Inner refractory tube is jacketed so that an annular space exists between it and the jacket. A thermally insulating mat of mineral fibres is placed in the space by continuously winding a helix of the mat in a continuous cord around the tube with the coils juxtaposed and piled up to fill the space from one end to the other; the last end is then stoppered. Pref. a protective sheath of a braided polyamide or fine iron wire winding is used.
Patent FR-2096692-A1 (FR)
Title: Casting brake discs and drums - using metal chill moulds
IPC: B22D15/00
Filed: 1970-06-10
Abstract: The articles are cast in a metal chill mould hwose shape forms a volume of revolution about an axis. The mould is surmounted by a composite core formed from a thin outer sand core on a metallic inner core. Due to the presence of the sand core, cooling is slower on the surface which form the internal friction surface of the brake drum or disc, than on the mould side which forms the external surface. Cooling is faster than in conventional sand casting processes. Enables a higher C content iron to be cast, with consequent resistance to thermal cracking combined with a friction surface which is non-porous.
Patent FR-2147048-A1 (FR)
Title: Foundry ladle tipper - with adjustable stays to accommodate ladles not having suspension loops
IPC: B22D41/06
Filed: 1972-07-11
Abstract: Ladle tilting mechanism has tipper cradles with adjustable stays to release the ladle necks when in the open position, and to overlap them when in the closed position. On each of both tipper cradles there is a stay which overlaps the cradle neck lengthwise. This removes the necessity for alterations to be made to the ladles or to auxiliary foundry equipment.
Patent FR-2240145-A1 (FR)
Title: Jet propulsion drive for water craft - incorporates guide blade transversely located in a flow channel of nozzle inlet
IPC: B63H11/08
Filed: 1973-08-07
Abstract: The propulsion has a nozzle projecting rearward and a motor-driven centrifugal pump to eject water through it. The water flow channel extends forward from the pump inlet downwards through the hull, and has an inlet aperture on the same level as the hull bottom. The channel has an internal guide blade located across it, to divide it into an upper and a lower section. the blade extends outwards, across a line between the front and the rear inlet edge. The blade has a horizontal front edge, under teh lower channel inlet edge, and extends rearwards into the channel.
Patent FR-2243199-A1 (FR)
Title: 7-Trichloroacetamido-3-desacetoxy cephalosporanic acids - inters. for 7-ADCA e.g. by reducing off 7-acyl residue
IPC: C07D501/60
Filed: 1973-09-06
Abstract: Cpds. of formula (I): (where R = a carboxyprotecting gp. Specifically methyl, T-butyl, 2,2,2-tricloroethyl, benzyl, p-methoxybenzyl, p-nitrobenzyl or phenacyl) can be converted to 7-amino-3-desacetoxycephalosporanic acid (7-ADCA) by (i) reducing (Zn-acetic acid) to the chloroacetylamino cpd. then reacting with thiourea in aq. medium to give 7-ADCA (this process is used when R = trichloroethyl and this gp. is replaced by H during the redn), (ii) when R is not = trichloroethyl, R is first converted to H (acid hydrolysis or hydrogenolysis or alkali thiophenoxide) then Cl3CCO is replaced by H by borohydride redn. (iii) when R is not = trichloroethyl or phenacyl. (I) is reduced (borohydride) to the 7-amino cpd. and this is then deprotected at the 4 posn. by hydrolysis or hydrogenolysis. 7-ADCA is a starting matl. for cephalexin and other semi-synthetic cephalosporin antibiotics. By this process it is produced inexpensively from a readily available cpd. such as penicilling G.
Patent FR-2200161-A1 (FR)
Title: Wrapping from plastic film material - has a strip of twist retaining foil material attached to its edge
IPC: B65D33/30
Filed: 1973-09-19
Abstract: The bag shaped wrapping with one enclosed end, has attached to at least one of its free edges a twist retaining strip of foil material which when twisted round gathered together end of the wrapping, encloses the end and secured the wrapping. The foil strip which is positioned about the middle of the adjoining wrapping edge is no longer than 1/3 or alternatively 1/6 of its total length and when attached to wrapping bag it is positioned between its side seams. The strips are spaced along band of plastic film from which they are separated before being attached to the wrapping. With the end of the wrapping gathered together one end of the strip is positioned between its folds and the other is wound and twisted round it.
Patent FR-2268494-A1 (FR)
Title: Modular shop display framework - has vert. support links coupled at ends and to support stirrups
IPC: A47F5/13
Filed: 1974-04-29
Abstract: The display framework for use in shops etc. is of economic form and readily adjustable to desire heights. Modular links (24, 25, 26) are suspended initially from stirrups (9) on an overhead rail; with each link being orientated at 90 deg. to the adjacent link. Each link is apertured (13, 14) for support of horizontal rods to from a composite assembly constituting a three dimensional space frame. Each link is of rectangular section bar, with a bent lower end and a central vertical slot. The top of the link has an inclined open ended slot so that the links are connected by fitting the link ends and slots together, with the stirrup fitting on the upper slots of the upper links.
Patent FR-2270176-A1 (FR)
Title: Cylindrical object transfer device for conveyors - has horiz. rotating wheel moving objects between guides at conveyor ends
IPC: B65G29/00
Filed: 1974-05-07
Abstract: The objects (3) typically bottles fed by a conveyor (1) between pairs of vertically spaced metal guide tubes (6). The tubes on the outside of the corner curve through an arc centered on a vertical axis (5) about which the transfer wheel (4) rotates. The tubes on the inside of the corner form only straight inlet and outlet guide sections. The bottles are forced against the elastic outer surface (4a) of the wheel, typically an automobile wheel tyre, because the tubes on the outside of the corner are spaced from the tyre a distance less than the bottle diameter and the tyre transfers the bottles over a support plate (7) to the second conveyor (2). The conveyors are typically at different speeds (V1, V2).
Patent FR-2229868-A1 (FR)
Title: Plunger type fuel injector nozzle - has length of hole through nozzle end adjustable to vary spray angle
IPC: F02M61/18
Filed: 1974-05-14
Abstract: The injector consists of a cylindrical tube closed at one end with a cone. Inside the bore is a needle type valve which also has a conical end. The valve seats on to the conical end of the cylinder. The valve is maintained off its heat by a spring. There are a number of holes in the cone through which the fuel passes. The cone angles of the full jet depends largely on the length of the holes through which it passes. The length of the holes may easily be modified by machining a hollow on the outside surface of the cone (17). The depth of this hollow reduces the hole length. The thickness of the cylinder remains constant in other parts of the assembly, thus retaining the necessary strength for the material.
Patent FR-2270985-A1 (FR)
Title: Hydraulic adapter for spark-erosion machines - so electrode can be located at any desired angle
IPC: B23H7/26
Filed: 1974-05-16
Abstract: Hydromechanical device permitting the orientation of spark-erosion machines in any direction. The novelty is that the device can be adapted to all machines of this type and uses two jacks simultaneously, a jack receiving pulses from the head of the spark-erosion machine, and emitting them, and a second jack receiving and accurately reproducing the frequency of the pulses, the second jack being located opposite the part to be machined and at any angle to it, either within the working area of the spark-erosion machine or at some distance from it. The pref. device uses a hydraulic fluid to transmit the pulses between the two cylinders, i.e. the emitter and receiver. It is no longer necessary to locate the workpiece on a worktable under the spark-erosion head, i.e. this device adapts the head to the workpiece.
Patent FR-2279006-A1 (FR)
Title: Working or control fluid distributor - has selector knobs with connecting passengers to indicate circuit used
IPC: F16K31/42
Filed: 1974-05-31
Abstract: The distributor body with power fluid entry and discharge contains a laterally sliding shaft so shaped and sealed that various interconnections between internal fluid passages are obtained by changing its position. The change of position is effected by feeding control fluid to either lateral face forming a piston. Externally mounted selector valves may be rotated to alternative angular positions set by detents and connect internal passages in the distributor body at orifices. The final fluid lines to the piston faces pass through externally mounted connecting plates which may be simply covered or controlled on/off by electrovalves.
Patent FR-2234675-A1 (FR)
Title: Cable terminal screw clamp - has transverse through boring which holds terminal in moulding with vertical locking screw
IPC: H01R4/36
Filed: 1974-06-06
Abstract: The central limb of the copper or aluminium terminal has a vertical tapped hole for a locking screw, of a diameter almost equal to the central limb thickness. The limb is also through bored in a transverse direction, the hole providing a means of fixing the terminal to a projection on the case moulding. In construction, the terminal comprises a rectangular tube with the dividing limb half way along. Through the top walls are threaded holes for a pair of G-clamp cable grips, one at each end. The bared wire ends enter at the open ends and are gripped by the screw clamps.
Patent FR-2274458-A1 (FR)
Title: Office memo pad - fixed annual schedule and accordion-pleated sheets pulling out for each month
IPC: B42D5/04
Filed: 1974-06-17
Abstract: The pad has three separate parts, a fixed one, a movable one and a rechargeable one. On the back of the cover on the left is a fixed annular schedule with a column for each month, giving an overall picture of the important annual meetings, while on the right is a fixed schedule with a cover opening outwards from bottom to top covering a rechargeable note pad. On the reverse side of the cover are 12 movable accordeon-pleated sheets pulling out, each representing 1 month and with horizontal columns representing weeks. On the right are four rechargeable note pads, and at the back is a pocket for sheets representing months past, for keeping items for reference.
Patent FR-2275376-A1 (FR)
Title: Washing machine releasable transport interlock - with struts connected with flexible means and provided with gripper which when pulled permits releasing of interlock
Inventor: LECAT GILBERT
IPC: D06F39/00
Filed: 1974-06-18
Abstract: Washing machine drum interlock is composed of >=1 strut whose ends are releasably attached to parts fast with the washing machine drum and base resp. and the releasable attachment is formed by locking members which when pulled by grippers through the intermediary of flexible inter-connecting members are removed from the struts which are pulled free of the parts. The interlock is used during transporting of washing machine, and is removed without disassembling machine casing.
Patent FR-2288457-A1 (FR)
Title: Orchid hybrid of cymbidium grex fanfare species - blooms in november and december and features large flowers of exceptional texture
Inventor: LECOUFLE MAURICE
IPC: A01H6/62
Filed: 1974-10-23
Abstract: Orchid of the species Cymbidium Grex Fanfare which is a hybrid of the variety of Fanfare "Saint Francis" coming out of a cross between Cymbidium Verde Grande and Cymbidium Mount Everest, the first of which is the female and the second the male plant. The orchid is a fast growing plant of large dimensions and long leaves which expand to be almost flat on the greater part of their length. It is rich in flowers and produces many upright stems; the blooms stand alternately at regular spacings on very long stems. Blooms have good dimensions, exceptional texture and colouring. The natural blooming period is from the start of November until the end of December with full bloom shortly before the 25th December.
Patent FR-2292857-A1 (FR)
Title: Steam turbine generating plant - with selective return of high pressure exhaust steam to feedwater heater
Inventor: TERANISHI TSUGUTOMA
IPC: F01K7/22
Filed: 1974-11-29
Abstract: The generating plant consists of a high pressure turbine and a low pressure turbine driving a generator. The boiler supplies steam to the high pressure turbine and, under full load operation, the expanded steam returns through a pipe to the superheater and is then supplied to low pressure turbine. Steam from the return pipe may also be fed through a non-return valve to a feed water heater. When the plant is operating at part load condition, a valve is opened to allow steam from the high pressure stage of the high pressure turbine to flow to the feed water heater so that the feed water is at a higher temperature when it enters the boiler to increase plant efficiency.
Patent FR-2296863-A1 (FR)
Title: Protective cover for viewing lenses - has attachment ring, cover and spring connector suitable for firearm sight
IPC: G02B23/16
Filed: 1974-12-30
Abstract: A protective cover for viewing lenses and similar system particularly for firearms comprises an attachment ring (10) which is mounted on the body of the lens (4) a cover which encloses the aperture of the lens (30) and a spring connecting device (20) which tends to keep the cover outside the field of view of the lens. Only a short length of the lens is covered, this distance usually being about a fifth of the lens diameter. Covering and uncovering is silent, this being important when used with a sporting gun.
Patent FR-2299657-A1 (FR)
Title: Conical mirror optical waveguide coupler - is for use in optical transmission systems and formed from glass or plastics
Inventor: CORLIEU GUY DE
IPC: G02B6/28
Filed: 1975-01-28
Abstract: Optical coupling devices for light guide interconnection in an optical transmission system comprises a conical mirror (1) and a transparent medium (5) for optical propagation between the mirror (1) and the faces of the ends of the guides to be connected. The end faces are regrouped in a flat circular area which forms the base (2) of the conical mirror (1). The guides have a numerical aperture MU and the conical mirror (1) has a semi-angle at the summit less than THETA where N3Sin(THETA) = MU, N3 being the refractive index of the transparent medium (5). The conical mirror is formed from a block (10) of material, whose refractive index is the same as that of the guides, and is metallised on its conical periphery.
Patent FR-2262095-A1 (FR)
Title: Hot-press adhesive for wood - prepd by liquefying wood (prods) with acid and penols
IPC: C08L97/02
Filed: 1975-02-21
Abstract: A liquid glue for solid lignocellulose materials (I) is prepd. by heating a mixt. of a (I), an acid capable of catalysing the hydrolysis of carbohydrates and a phenol, until the (I) is at least partly liquefied. Prod. is used as a hot-press adhesive in the same way as e.g. phenol-HCHO resins for mfr. of plywood, chipboard, fibreboard etc. Since the amt. of phenol required is low the cost is only 1/7-1/10 that of known adhesives. The (I) used for the glue may be wood, bark, leaves or conifer needles, the phenol is esp. derived from wood e.g. phenol, cresol, xylenol, resorcinol or catechol, the acid is H2SO4, HCl H3PO4 or acetic acid.
Patent FR-2301754-A1 (FR)
Title: Multifunction liq. mixer tap - has part spherical hub with transverse bore rotatable in cylindrical chamber
IPC: F16K11/087
Filed: 1975-02-21
Abstract: The mixer tap has a handle which rotates a part spherical hub in a cylindrical chamber and the hub has a transverse passage formed of a narrow cylindrical section joined to an expanding concial section. At the junction of the two sections, another cylindrical bore connects the transverse passage to cylindrical chamber. Entry ports on axes at right angles lead to corresponding discharge ports. Seals fitted at three of the ports ensure no leakage when the tap is turned so that the port is not aligned with the passage. One discharge port is not fitted with seals and is always incommunication with the bottom of the chamber via an orifice.
Patent FR-2263487-A1 (FR)
Title: Boiler tube nests cleaning device - with unequal arms on transverse hinging two-armed levers
IPC: F28G7/00
Filed: 1975-03-07
Abstract: The device is for cleaning heating-surfaces in boilers which comprise tube nets connected alternately at two levels with a hollow rod running across them, the two rods being hinged at their open ends to a two-armed lever, with a driving cylinder engaging on its pivot. The effective arms of this lever are of unequal length, and its pivotal point distance below the plane of the suspension points of the tube nets is equal to twice the product of the distances of the upper and lower hollow rods from the suspension point, divided by the sum of these same distances. The danger, in such vibrating devices, of transmitting the periodic forces from the tube nest mass motion to the boiler, via their carrier elements, ie eliminated.
Patent FR-2307344-A1 (FR)
Title: Tellurium cpd. radiation source for mossbauer investigations - and prodn. from basic magnesium tellurate by thermal neutron bombardment
Inventor: ALEXANDROV A J
IPC: G21G4/04
Filed: 1975-04-08
Abstract: Radiation source for Mossbauer investigations of Te cpds. is based on 5MgO, Te124O3 (I). The source is produced by bombarding (I) with thermal neutrons in a reactor and then calcining 5-10, pref. 6 h at 600-1000, pref. 900-1000 degrees C. Prods. are useful in the investigation of chemical reactions and in analysis and technology. The source gives a highly effective Mossbauer effect and the natural emission line width and can be produced without specialised equipment. The probability of the Mossbauer effect is high, i.e. 0.20 at room temp. and 0.51 at the temp. of liquid N2. In an example, a Mg tellurate/Mg(OH)2 mixt. was calcined 2 h at 900-1000 degrees C ground, bombarded with therm neutrons (intensity 3x1013/cm2.s) for 360 h and calcined 6h at 900-1000 degrees C, giving a radiation source of activity 100 mCi with natural line width.
Patent FR-2267412-A1 (FR)
Title: Device for detecting faults in a fabric advances and stretches fabric - and automatically marks regions of the faults
IPC: D06H1/00
Filed: 1975-04-10
Abstract: A number of supply rolls of fabric web are mounted on a carriage together with associated guide bars over which a web passing from a roll is fed to be picked up by a pair of moving jaws, the carriage being moveable pneumatically to maintain the web centralised with respect to the jaws. The jaws retain opposite edges of the web and their sepn. is adjustable to maintain the web stretched laterally. The jaws advanced the web through a cutter which trims the selvedge (the waste being removed through a waste pipe) and then over a detector which detects faults in the web and operates a marker downstream of the detector and which marks the faults with chalk. Finally the web is folded up. The detector is either an optical detector which monitors light passing through the web or an electro-mechanical transducer of which the magnetic flux is modulated by a fault. The output from the detector is amplified before being used to actuate the marker. The device is continuously fed with a fabric web and operates automatically and continually. The device operates more quickly than manual detecting and marking operations and reduces the likelihood of missing faults.
Patent FR-2288183-A1 (FR)
IPC: D06P1/653
Filed: 1975-10-17
Abstract: Cellulosic material is printed with a paste containing the alkaline solution of a coupler, the dispersion of a diazotable aromatic amine, a nitrite and a thickener and the dyestuff is developed on the fiber by acidic steaming or by adding solutions of organic acids and steaming or drying.
Patent FR-2289374-A1 (FR)
Title: Operating mechanism for reaction brake disc - has automatic brake wear adjustment using stationary cam discs with balls between
IPC: F16D65/14
Filed: 1975-10-29
Abstract: The brake mechanism consists of a housing into which a cup shaped brake carrier fits. The two parts are forced apart by hydraulic fluid admitted to an annular chamber at the rear of the cup shaped part. A mechanical brake operating mechanism is mounted inside the cup shaped part and acts against it via a brake wear adjusting arrangement. The mechanical brake operating mechanism consists of a rotating cam disc, a stationary cam disc and balls mounted between the two discs. The rotating cam disc is operated by a lever mounted on a shaft which protrudes from the brake housing. The brake wear adjusting mechanism consists of an adjusting member which fits with a high pitch screw thread into the cup shaped part and friction cones mounted on the adjusting member and the stationary cam disc.
Patent FR-2334797-A1 (FR)
Title: Ceiling or partition suspension system - has flexible strip flanges bent inwards more than right angle engaging in notches
Inventor: GARNIER CLAUDE
IPC: E04B9/26
Filed: 1975-12-12
Abstract: The system is for the installation of suspended ceilings or partition walls, using this straight of elastic material with flanges bent symmetrically so as to form a C-section. These are secured to the joists of a rigid framework by yokes straddling the joists and formed from flat strips bent into a V-shape. The flanges at the strip edges are bent inwards through more than 90 deg. when secured to the joists (3), and these flanges fit in notches in the yokes (2). The angle between the arms of the yoke when free is greater than when pressed against the joist faces, and each arm has two symmetrical lateral notches. The distance between the outer edge of each notch and the bend in th yoke is determined by a formula taking into account the height of the joist and the cosines of the angles between the yoke arms when free and under load.