baber/WOPTO huggingface dataset:
Patent FR-1601120-A (FR)
Title: Apparatus for continuous production of - cyclic poly dimethylsiloxanes
IPC: B01J19/00
Filed: 1968-09-04
Granted: 1970-08-10
Abstract: The apparatus comprises a vertical vessel having a nest of vertical heat transfer pipes in its lower part with a vertical downpipe in the centre of the nest, whilst a layer of fillers and a dephlegmator are provided in the upper part of the vessel. The reactant feed conduit may be provided above the nest of pipes and may extend into the vertical downpipe. The apparatus has no moving parts and has lower running and maintenance costs. Specifically used in prepn. of octamethylcyclotetrasiloxane.
Patent GB-1005267-A (GB)
IPC: C04B30/02
Abstract: 1,005,267. Plastic compositions. W. WILKE & WILKE, and W. GRAF VON REX, [trading as REX ASBESTWERKE GRAF VON REX KOMM.-GES.]. Sept. 20, 1962 [Sept. 21, 1961], No. 35914/62. Heading C3N. [Also in Division C1] Articles subjected to high temperatures are insulated by applying an aqueous dispersion of asbestos fibres and a dispersing agent, drying, and, if desired, heating further as a temperature above 150‹ C. Other fillers, such as non- opened, asbestos bundles, kieselguhr, and hydraulic binders may be included and reinforcements or covers of fabrics, or glass or wire cloth can be included. The dispersing agents, preferably alkali salts of fatty acids, are used in the amount of 5-30% by weight of the asbestos fibres.
Patent GB-1051756-A (GB)
IPC: B29C48/09
Abstract: 1,051,756. Extruding thermoplastic tubing. DOW CHEMICAL CO. April 24, 1964 [May 3, 1963], No. 17143/64. Heading B5A. [Also in Division F2] A hollow cylindrical thermoplastic resinous article is formed by extruding a heat plastified thermoplastic resinous material through an annular die and rotating the material during extrusion in such manner that at least one surface of the article has a molecular orientation in a generally helical pattern. The extrusion may be effected through a die 24 (Fig. 1, not shown) having a mandrel 18, the die and the mandrel being rotated oppositely, or one may be stationary and the other rotated.
Patent GB-1052288-A (GB)
Abstract: 1,052,288. Lamp-holders. UNITED-CARR INCORPORATED. Oct. 7, 1964 [Oct. 7, 1963], No. 40923/64. Heading H2E. [Also in Division B3] A lamp-holder formed from one piece of sheet metal comprises first and second tubular bodies 6 and 2 connected by a peripheral flange 4, and a plurality of resilient legs 8 which are bent back along the outer peripheral face of the first body, and are used to attach the lamp-holder to an apertured support. The holder has a central spring-urged contact 16 for engaging the base of a lamp, and J-shaped slots 24 to engage bayonet-pins. A flanged insulator 18 may insulate the central contact from the outer contact, and may be retained within the body by holding means (not shown), formed on the inside of body 2.
Patent GB-1053127-A (GB)
IPC: A21D2/24
Abstract: 1,053,127. Culinary mixes. GENERAL ANILINE & FILM CORPORATION. June 3, 1964 [June 10, 1963], No. 23070/64. Headings A2B and A2D. A dry culinary mix comprises sugar, farinaceous material, shortening and polyvinyl pyrrolidone. The mix may comprise sucrose, dextrose, maltose, fructose, lactose, brown sugar, invert sugar, emulsified shortening, non fat dried milk solids, salt, sodium, potassium or ammonium bicarbonate, mono- or di-calcium phosphate, sodium acid pyrophosphate, potassium acid tartrate, monosodium phosphate, sodium aluminium phosphate or sulphate, cocoa,. cake flour, egg solids, flavourings and colourings. The shortening may comprise animal or vegetable wax and may be emulsified with fatty acids, mono- and diglycerides of fatty acids (e.g. monostearin, monopalmitin, monolein and dipalmitin) partial fatty acid esters of glycol (e.g. propylene glycol monostearate and monobehenate), the partial palmitic and oleic acid esters of sucrose, dodecylglyceryl ether sulphate, monostearin phosphate, glyceryl lactopalmitate, polyoxyethylene ether of sorbitan mono- or di-stearate and stearyl-2-lactylate. The mix may be made by dispersing polyvinyl pyrrolidone, as solid or solution, in liquid or molten shortening which is then mixed with other ingredients. The method of preparation may be batchwise or continuous.
Patent GB-1076266-A (GB)
IPC: H03K21/00
Abstract: 1,076,266. Measuring time intervals. HOLLANDSE SIGNAALAPPARATEN N.V. March 9, 1966 [March 16, 1965], No. 10407/66. Heading G4H. In an arrangement for measuring, by counting pulses, the interval between a datum pulse and a timed pulse in which the datum pulses recur at regular intervals, the period measured may be that between the datum pulse and the timed pulse or that between the timed pulse and the datum pulse, the counter being started by whichever of the pulses occurs first after a command signal, and it supplies the value of the count in one case and the complement of this value in the other. The counter may comprise a series of binary stages connected to count in the binary scale. Its maximum capacity count may be equal to the interval between two datum pulses, and the complement value is obtained by reversing the settings of all the stages and adding one. The control circuit of the counter is described in detail.
Patent GB-1225398-A (GB)
IPC: D06F58/02
Filed: 1968-09-18
Abstract: 1,225,398. Rotary driers. PASSAT MASCHINENBAU G.m.b.H. 18 Sept., 1968 [21 Sept., 1967], No. 44449/68. Heading F4G. In a batch or continuous drier comprising a perforated drum rotatable in a stationary casing and having entrainer ribs therein, heated drying air is introduced into and exhausted from the drum radially via inlets and outlets respectively, which inlets and outlets are arranged in regions which lie side-by-side and extend over substantially the entire length of the drum. In one embodiment, the apparatus comprises a stationary casing 2 in which is mounted a rotary perforated drum 1 having hollow longitudinally extending ribs 21, and an annular chamber 10 at each end of the drum. The ribs communicate with the chambers 10 and communicate with the interior of the drum through one or more longitudinally extending slots 22. A fan 11 and heater 14 is associated with each annular chamber. In operation air sucked from chamber 15 and heated by radiators 14 is blown by fans 11 to the annular chambers 10 and then to the ribs 21. The air is blown through the slots 22 into the drum and is exhausted through the perforations 23 in the drum wall into suction chamber 15 for recirculation. During the circulation of air some air is exhausted from the circuit and a corresponding amount of fresh air introduced. In other embodiments, annular chambers 10 may also be provided in the central regions of the drum and the air may be introduced into the drum through sections of the drum's peripheral wall instead of via the ribs.
Patent GB-1226144-A (GB)
IPC: H01M4/02
Filed: 1969-01-29
Abstract: 1,226,144. Anode. LEESONA CORP. 29 Jan., 1969 [4 April, 1968], No. 4810/69. Heading H1B. An anode for an electrochemical cell par ticularly a metal/air or metal/oxygen cell, comprises a porous metal body 2 wrapped in a first layer 4 of hydrophilic gas impermeable material, such as a cellulosic membrane like unglycerinated desulphured fibrous cellulose, which is preferably cut away at 4À1 at the top on one side of the anode, having a plurality of slits or holes therein, and a second layer 5, preferably in bag form which is hydrophilic dimensionally stable and heat sealable such as a fibrous synthetic material of, for example, copolymers of vinyl chloride and acrylonitrile, polyamide polymers, copolymers of polyvinyl alcohol and polyvinyl chloride, and polyacrylate esters. The anode shown in Fig. 1 may also include a metal screen 1 which supports metal body 2. Silver current collector tabs 3 are attached to the metal screen, and are placed in contact with a bus-bar 6 which is in contact with terminal plugs 7. A handle 8 is attached to the bus-bar. A non-conductive plastic anode top 9 is encapsulated over the bus-bar around the base of terminal 7. The metal body may be made by compressing at an elevated temperature metal particles such as Pb, Zn, Fe, Cd, Al or Mg, which may include a plastics binder. Alternatively, metal oxides can be used which are reduced electrolytically or chemically and followed by compression.
Patent GB-1228787-A (GB)
IPC: A01D34/63
Filed: 1968-05-14
Abstract: 1,228,787. Mowing machines. BRITISH LELY Ltd. 14 May, 1968 [18 May, 1967; 11 Aug., 1967], No. 22939/68. Heading A1F. Stones &c. are prevented from being flung from rotating mowing members 33 by means of a pivoted depending plate 48 behind the members 33. The plate 48 is loaded by torsion bars 49A (or torsion springs or counterweights) so that only a small force is required to tilt the plate rearwardly and upwardly. The plate 48 may hang vertically with its lower edge 49 touching the ground. Each mowing member 33 comprises a cylindrical or hexagonal drum 28 carrying blades 31 pivoted thereto by the inner ends of their leading edges. The drums 28 are rotated in opposite directions (to produce a central swath) by a shaft 37 driven via bevel gearing by a pulley 52A driven by a further pulley on a shaft connected to a universally jointed telescopic shaft driven by the tractor power-take-off. The mowing assembly may be pivoted upwardly about a shaft 51 carried by a frame 52 connected to the tractor three-point hitch, and held in an inoperative position by a hooked rod (on the plate 39) engaging a bracket on the frame 52. Each mowing drum 28 carries a ground-engaging support 34 and the mowing assembly is supported by groundengaging supports 42 and 43 carrying posts 44 which extend through sleeves 45 oh the plate 39. The posts 44 may be secured in selected positions by pins 47, or raised and lowered by a crank operating a screw-andnut arrangement. The supports 42 and 43 are closed by plates which laterally screen the mowing members 33.
Patent GB-1229585-A (GB)
IPC: A01N37/02
Filed: 1967-05-19
Abstract: 1,229,585. Herbicides containing trichloracetic acid/salt and aminotriazole. R. B. WARNER. 9 May, 1968 [19 May, 1967], No. 23403/67. Heading A5E. A herbicidal composition comprises trichloracetic acid or a salt thereof, 3-amino-1,2,4-triazole or a salt thereof, and an alkali metal thiocyariate. Active ingredients specified are sodium trichloracetate, 3-amino-1,2,4-triazole or its hydrochloride and sodium thiocyanate. Optional ingredients specified are phosphate and/or potash fertilizers, and other herbicides such as sodium chlorate and dalapon.
Patent GB-1231531-A (GB)
IPC: C08F8/12
Filed: 1969-02-24
Abstract: 1,231,531. Polyvinyl alcohol. E.I.DUPONT DE NEMOURS & CO. 24 Feb., 1969 [23 Feb., 1968], No. 9817/69. Heading C3P. In a method for the production of polyvinyl alcohol in which a solution of a polyvinyl ester in a hydrolytic alcohol is continuously fed to an agitated alcoholysis mixture containing an alcoholysis catalyst and there is continuously withdrawn a slurry of the polyvinyl alcohol product in a solvent mixture of the alcohol and the by-product ester of the alcohol with the acid of said polyvinyl ester, said solution of the polyvinyl ester is fed to said alcoholysis mixture at a rate such that the concentration of dissolved polymer does not exceed about 1 % of the weight of said alcoholysis mixture, and there is employed as the polyvinyl ester feed solution a solution of a 10 to 40% alcoholysed polyvinyl ester in a solvent mixture of said hydrolytic alcohol and 6 to 30% by weight of said byproduct ester. Polyvinyl acetate is alcoholysed in a mixture of methyl alcohol and methyl acetate using sodium methylate at 0-200‹ C. ; the product is granular.
Patent GB-1234478-A (GB)
IPC: A47D1/00
Filed: 1968-11-26
Abstract: 1,234,478. Child's high-chair. G. PEREGO. 26 Nov., 1968 [12 Jan., 1968; 13 Sept., 1968], No. 56084/68. Heading A4J. A child's high-chair, Fig. 2, comprises a base framework A, a rear framework B having parts 8 fixed in parts 2 of framework A, a device C including tubes 11 slideably adjustably mounted on parts 8, and a chair including a back E<11> with hooks 18 for hanging on a tube 12 of device C, an adjustable seat E, a foot rest H and a detachable tray T. The seat E is adjustable in depth with regard to the back E<11> by guides 15 in seat E sliding in guides 17 in the seat frame bottom 14, lock screws (15<1>) and stops (17<1>) being provided. The guides 15, 17 may be replaced by rollers or sliding pads. The foot rest H is adjustable in height by pins 25<1> on its frame I engaging selected holes 24<11> in a support F, support F adjustably supporting the footrest in depth by spring loaded plungers 23 in tubes 21 of devices G connected to arm rests 16 of the seat frame co-operating with selected notches 24<1> of support F. Hooks 18, and hooks 19 for hanging the chair on a car seat, are rotatable in devices M fixed to the chair back. Tray T is detachably mounted by a frame S in apertures S' on the back E<11>, and may be turned over. In another form of high-chair, Fig. 6, frameworks A, B are in one piece, and the chair comprises a back (D) and sides (D1), D2 respectively connected to parts Q, R, P, and a seat E with an extension E<1> that covers the foot-rest H. Parts Q, R, P have sleeves Qx, Rx, Px for the reception of rotable spindles M with hooks M2, M, for hanging the chair on the device C or a car seat; cavities Ry, Py that adjustably receive the arms of a frame S supporting a tray (T), and sockets R2, P2 that adjustably support arms H<1> of footrest H. A frame F having its ends F, fixed to the bottom R1, (P11) of parts R, P has a slot F2 in which a locking pin F3, F4 underneath seat E slides. Tray (T) is adjustably attached to a plate S<1> by projections (T1, T2, Fig. 7). A U-frame (U, Fig. 8) pivoted to frame F, allows the chair to be mounted on the floor.
Patent GB-1234637-A (GB)
IPC: A01B63/112
Filed: 1968-09-25
Abstract: 1,234,637. Draft control. CAM GEARS Ltd. 28 Nov., 1969 [25 Sept., 1968], No. 45558/68. Heading A1P. A three point, implement carrying, tractor linkage has both draft and position control and incorporates a two-element valve 11 for controlling the ram 6 and disposed in the length of one of the links 10. Manual operation of the lever 12 is communicated to a control lever 14 through a double acting centring spring load unit 13 which supplies a tension to the end 10B of the link 10, operating the valve 11 and opening one of the flexible pipe connections 11A to communicate with the cylinder 6B. The piston 6 is accordingly operated, pivoting the lever 5 about its centre and raising or lowering the linkage by means of the crank 3. The lever 5 is linked to the control lever 14 at the pivot 15 so that movement of the ram tends to restore the tension in the link 10 to a minimum. The draft control operates in a similar way using the same feedback path although in this case the link 10 is tensioned through the links 9 and 8A by the reaction from the ground. The spring 10A serves to prevent minor fluctuations in the ground reaction from operating the draft control.
Patent GB-1238645-A (GB)
IPC: B60Q5/00
Filed: 1967-06-26
Abstract: 1,238,645. Steering wheels. CLIFFORD COVERING CO. Ltd. 24 June, 1968 [26 June, 1967], No. 7377/71. Divided out of 1,238,644. Heading B7J. A vehicle steering wheel comprises a frame including a rim 11, a hub 9 and spokes 10 connecting the rim to the hub, a separate crash pad 12 attached to the frame and comprising a mass of flexible impact absorbing material overlying the hub and/or the spokes and a sheet metal base 13 interposed between the mass and the frame, a passage, in the form of tubing 15, in the mass which can be locally closed by application of pressure to an overlying part of the mass and horn actuating mechanism in the form of electrical contact means (switch 16) associated with the passage and arranged to be closed on local closing or partial closing of any part of the passage. The switch 16 is fluid pressure-operated and is connected to the ends of the tubing 15 which contains liquid or air. Alternatively instead of the fluid pressure operated switch the tubing may contain flexible contact strips normally kept apart by the tube.
Patent GB-1239516-A (GB)
IPC: F16H47/06
Filed: 1969-10-31
Abstract: 1,239,516. Change-speed gear. BELORUSSKY AVTOMOBILNY ZAVOD. 31 Oct., 1969, No. 53560/69. Heading B7H. [Also in Division F2] A heavy motor-vehicle hydromechanical change-speed gear comprising a three element hydrodynamic torque converter 2 of the split reaction type, in series with a multistage reduction gear 1 having non-coaxially arranged (i.e. parallel) input and output shafts 4, 5, includes a manually-operable hydrodynamic vehicle service brake 3 the rotor 30 of which together with the turbine 23 of the torque converter are rigidly secured to the input shaft 4, the brake housing 31 being secured to the gear casing 6 and locatably supported on the fixed outer rows of the input and output shaft bearings 8, 10 to relieve the securing bolts 32 from brake torque reaction load. Engagement or disengagement of the hydrodynamic brake 3 is effected by filling or emptying its working chamber 36 via a spring-loaded slide valve 49 controlled by a piston 50 pneumatically operated by a valve selectively operated by the vehicle driver. The hydrodynamic brake casing cover 33 additionally forms the housing of a parking bond brake 43 whose drum 42 is arranged on the output shaft 5, the cover 33 being ribbed at 46 and the drum 42 including blades for ventilating and removing excess heat from the hydrodynamic brake 3.
Patent GB-1251886-A (GB)
IPC: H03F3/30
Filed: 1969-05-14
Abstract: 1,251,886. Transistor amplifiers. MARANTZ CO. Inc. 14 May, 1969 [10 March, 1969], No. 24583/69. Heading H3T. Cross-over distortion is reduced in an amplifier having complementary transistors Q1, Q2 driven by a preamplifier A1 by variable base-emitter circuits for the transistors; these, for example comprising variable emitter resistors R13, R14 and base resistors R10, R11. These resistors are adjusted to control the value of input voltage at which each transistor conducts. The collectors of Q1, Q2 drive respective transistors Q3, Q6 which drive power transistor pairs Q4, Q5 and Q7, Q8. The latter feed the load connection 24 through diodes D6, D7 which provide compensation for temperature induced changes in the power transistors' currents by correspondingly modifying the emitter voltages of Q3, Q4. Quiescent D.C. conditions for Q4, Q5, Q7, Q8 are set by a network consisting of a transistor Q11 and its associated resistors R15, R16, and diode D5, and this network together with the diodes D6, D7 prevents thermal runaway. Feedback R27, C9 is provided from the output 24 to the base bias resistors R10, R11 of Q1, Q2; and a second feedback R29 is provided from 24 to the input of the preamplifier A1. A capacitor C10 associated with R29 sets the upper limit of the frequency response. A resistor chain R31, R32, R33 across the preamplifier A1 enables D.C. balance to be set by adjusting the wiper of R32. The base bias for Q1, Q2 is completed by temperature compensating diodes D3, D4 and their associated resistors; and transistors Q9, Q10 modify the bias to limit the current in Q1, Q2 under the control of voltages developed across the common emitter resistors R23, R24 of the power transistors Q4, Q5 and Q7, Q8 in order to protect the power transistors from overload.
Patent GB-1252581-A (GB)
IPC: F15B11/042
Filed: 1968-02-12
Abstract: 1,252,581. Reciprocating motors. BUTTERWORTH HYDRAULIC DEVELOPMENTS Ltd. Jan.28, 1969 LFeb. 12, 1968], No.6796/68. Headings F1A, F1M and F1P. In a fluid operated motor a piston 4 is moved in a direction Y at a faster rate than in the reverse direction by connecting the pressure chamber 6 with two sources of fluid-pressure and chamber 7 with exhaust, and connecting chamber 7 with only one source of pressure and chamber 6 with exhaust in the reverse direction. Fig. 1 shows a spool valve 8 having a stepped piston 9 reciprocated in a stepped bore 10 and having its smaller diameter working face exposed to a pressure chamber 12 connected to a source of constant pressure, and its larger face exposed to pressure chamber 14 which is alternately connected with a source of pressure and exhaust. In the position shown, chamber 6 is connected via a control port 34 and a bore: 40 in spool 9, connecting two transfer chambers 24, 22 to two sources of pressure 38a, 39a which may be two independent pumps or a multiple outlet pump in which variation of outflow of one outlet is independent of the other, and chamber 7 communicates via transfer chamber 25 and control port 35 with exhaust passage 31. When chamber 14 is exhausted, spool 9 moves to the right and source 38a and port 34 are opened to exhaust by the movement of lands 16 and 18 respectively, and control port 34 is uncovered by land 19 to connect chamber 7 with source 39a to move the piston 4 in the reverse direction. It is stated that reciprocation of the spool can be controlled by the opening and closing of ports in the piston cylinder 3 by control surfaces on the piston 4.
Patent GB-1257552-A (GB)
IPC: B64D13/04
Filed: 1969-03-28
Abstract: 1,257,552. Air conditioning aircraft. GARRETT CORP. 28 March, 1969 [29 March, 1968], No. 16449/69. Heading F4V. [Also in Divisions G2-G3] An aircraft cabin 10 receives air from hot and cold sources 14, 13 via line 12 and screen 15, and cabin temperature is controlled by temperature sensors 21, 22, 23 which control a valve 16 in the hot air line via a pilot valve 18 and servomotor 17. Sensors 21, 23 include bridge circuits (Fig. 2) having resistors 61, 71 variable with temperature. As cabin temperature falls below the value set on resistor 26, sensor 21 provides a positive voltage signal which is amplified at 65 and fed through 5V limiter 66 to summer 76 which also receives a positive 5V bias. As the temperature in line 12 reaches a maximum preset level, sensor 23 provides a negative 5V signal through amplifier 75 to summer 76. When the summer output is a minimum, i.e. 5V, the current flowing through a wire 42 connected to the summer heats the latter to the extent that the pilot valve is positioned as shown to admit the low pressure upstream of screen 15 to the piston end of servomotor 17 and, since the rod end is subject to the same pressure via line 53 if screen 15 is not iced up, spring 55 closes valve 16. When the summer output exceeds 5V wire 42 expands to allow the pressure difference across diaphragm 32 to seat head 50 and unseat head 36 to admit high pressure air to chamber 41b and line 56, the pressure in the latter thereby rising until the decreased pressure difference across the diaphragm allows wire 42 to seat both heads 36, 50. Valve 16 thereby opens progressively as the summer output rises to its maximum of 10V. If the screen 15 ices up, the consequent pressure drop thereacross opens valve 16 to admit hot air.