baber/WOPTO huggingface dataset:
Patent GB-815981-A (GB)
Title: Improvements in helicopters
IPC: B64C27/12
Filed: 1955-06-24
Abstract: 815,981. Helicopters. AEROTECNICA S. A. June 24, 1955 [July 24, 1954], No. 18379/55. Class 4. In a gas turbine driven helicopter residual gases are fed to a pipe 9, at the tail end of the fuselage, which terminates in an outlet fitting having laterally extending nozzles E and F provided respectively with valves 4 and 3 actuated by pilot-controlled mechanism 15. Further shutters 6 and 7 operatively connected to an external speed responsive device (not shown) when located in the positions shown cause the gases to be deflected laterally through the nozzles E and F under the control of valves 4 and 3 whereby a yawing control force may be exerted on the helicopter. When the forward speed of the helicopter is increased to a predetermined value the airspeed responsive device causes the shutters 6 and 7 to move to the positions shown by parallel dotted lines to enable the gases to drive the turbine 2 which is connected by reduction gearing to one or more propellers 8 assisting in the forward propulsion of the helicopter.
Patent GB-109904-A (GB)
Title: Improvements in Portable Electric Hoisting Gear for Discharging Baskets from Ships and for analogous purposes.
Inventor: DAVIES-COLLEY RALPH JACKSON
IPC: B66D1/26
Filed: 1916-12-27
Abstract: 109,904. Colley, R. J. Davies-. Dec. 27, 1916. Winches.-Cargoes, more particularly baskets of fish from trawlers, are unloaded by a portable electric hoisting apparatus comprising a motor A and a pair of independently actuated winding-drums I mounted on a base-plate B which can be fixed to a bollard C, or other stationary support, on the quay side. The apparatus can be transported on a truck M.
Patent GB-116109-A (GB)
Title: Process of Printing Paper.
Inventor: CARL RICHARD WALDEMAR
IPC: B41M7/00
Filed: 1916-12-27
Abstract: 116,109. Jager Ges., C., and Carl, R. W. Dec. 27, 1916. Ink.-For printing on paper in rotary presses, inks are employed comprising a mixture of water, hexamethylenetetramine, or other substance capable of yielding formaldehyde when heated, dyes, lakes, or pigments, and substances which combine with nascent formaldehyde, such as gelatine, glue, agar-agar, sugar, or casein. In the case of dyes, such as azidin black, plutoform black, or direct deep black, which yield with formaldehyde partly or wholly insoluble compounds, the gelatine, glue, &c. may be omitted or may be replaced by materials which do not react with formaldehyde. It is stated that the heat developed in the press is sufficient for the formation of formaldehyde from hexamethylenetetramine in the presence of water. The dyes can be used without oils and can be bleached out readily after printing. Examples of suitable mixtures are given.
Patent GB-1505377-A (GB)
Title: Sampling circuits
IPC: H01L29/08
Filed: 1975-05-02
Abstract: 1505377 Amplitude modulation; semi-conductor gating circuit SONY CORP 2 May 1975 [9 May 1974] 18512/75 Headings H3R and H3T In a sampling circuit comprising a semi-conductor device 11 in which a bipolar transistor carries a gate region of the same conductivity type as the base, within the emitter region and approaching the emitter-base junction within the diffusion distance of minority carriers in the emitter, a signal to be sampled is applied between base and emitter and a gating pulse between gate and emitter to increase the gain of the device during the presence of the pulse above its very low background level. The internal resistance of the pulse source is chosen to allow the required increase in gain (Figs. 3-6, not shown) as indicated by the common-emitter current amplification factor h FE . The input signal to the base is oscillatory and is applied via transformer 21 and capacitor 31, the output from the collector driving an LC circuit 22 tuned to the input signal frequency, the tuning inductor 57 being coupled to an output secondary winding 42.
Patent GB-741626-A (GB)
Title: Improved greases containing soaps of hydroxy acids
IPC: C10M169/00
Filed: 1953-07-03
Abstract: A lubricating grease composition comprises a lubricating oil and minor proportions of a mixture of lithium and calcium soaps of a C12-C24 hydroxy fatty acid, a chlorinated hydrocarbon and a sulphurized fatty oil.  The soap mixture contains not less than 60 per cent calcium soap and not more than 40 per cent lithium soap. The preparation of a grease containing mineral oil, mixed lithium-calcium hydroxy stearates, chlorinated paraffin wax containing 40 per cent chlorine, sulphurized sperm oil and lead naphthenate is described.
Patent GB-1070116-A (GB)
Title: Amidines
IPC: C07D333/24
Filed: 1966-04-27
Abstract: The invention comprises compounds of the formula <FORM:1070116/C2/1> wherein X is ethylene or vinylene, R1 is methyl, ethyl, allyl, methoxy or methylamino and R2 is hydrogen or methyl and is in the 2- or 3-position and the other group is in the remaining 2- or 3-position; non-toxic acid addition salts thereof; and their preparation by ammonolysing a corresponding imido ester, or an acid addition salt thereof, with an amine of the formula R1NHCH3, or an acid addition salt thereof, and, if desired, forming an acid addition salt of the resulting compound.  The imido ester starting materials are prepared by reacting an appropriate thienylacrylonitrile or thienylpropionitrile (themselves prepared by condensing an appropriate thiophene carboxylic acid with cyanoacetic acid, followed, if necessary, by catalytic hydrogenation) with an alcohol in the presence of hydrogen chloride and under anhydrous conditions. Pharmaceutical compositions, with anthelmintic activity, for oral or parenteral administration, comprise a compound of the invention together with a carrier.  In veterinary use the compositions may be in the form of an animal's feedstuff or drink.ALSO:Resin adsorbates are prepared by slurrying a suspension of the sodium form of a sulphonated styrene/divinyl-benzene copolymer with an aqueous solution of a water-soluble salt of an amidine of the formula <FORM:1070116/C3/1> wherein X is ethylene or vinylene, R1 is methyl, ethyl, allyl, methoxy or methylamino and R2 is hydrogen or methyl and is in the 2- or 3-position and the other group is in the remaining 2- or 3-position.ALSO:Disinfectants comprise aqueous solutions of compounds of the formula:  <FORM:1070116/A5-A6/1> wherein R1 is methyl, ethyl, allyl, methoxy or methylamino, R2 is hydrogen or methyl and is in the 2- or 3- position and the other group is in the remaining 2- or 3- position, and X is ethylene or vinylene, or their non-toxic acid addition salts.
Patent GB-795882-A (GB)
Title: Polymerisation process
Inventor: BESSANT KENNETH HENRY CHARLES
IPC: C08F10/00
Filed: 1955-06-28
Abstract: Catalyst mixtures for the polymerization of alpha-olefins comprise a lead tetra-alkyl mixed with a halide of titanium, zirconium or vanadium.  Specified materials are lead tetra-ethyl, titanium or zirconium tetrachloride and titanium tri-chloride. The catalyst mixture may be dispersed in an inert liquid vehicle, e.g. pentane, hexane, cyclohexane, tetrahydronaphthalene, decahydronaphthalene, benzene, xylene, o-dichlorbenzene and chlorinated naphthalene.  It is preferred that the molar proportions of lead tetra-alkyl to the metallic intake are as two is to one.ALSO:Alpha-olefins of formula CH2=CHR, where R is an alkyl group or hydrogen are polymerized by using as catalyst a mixture of lead tetraalkyl and a halide of titanium, zirconium or vanadium.  Specified alpha-olefins are ethylene, propylene, 1-n-butene, 1-n-pentene and 1-n-hexene, which may be polymerized separately or mixed with one another.  Lead tetraethyl is the specified lead tetra-alkyl, while titanium tetrachloride (preferred) and trichloride and zirconium tetrachloride are specified halides.  The reaction may take place in an inert liquid vehicle, e.g. pentane, hexane, cyclohexane, tetra- or deca - hydronaphthalene, benzene, xylene, o-dichlorbenzene and chlorinated naphthalene.
Patent GB-1424578-A (GB)
Title: Arc heating apparatus
IPC: F27D7/06
Filed: 1973-04-18
Abstract: 1424578 Degassing molten metal STANDARD-MESSO DUISBURG GES FUR CHEMIETECHNIK mbH & CO 18 April 1973 [25 Jan 1973] 18615/73 Heading C7D [Also in Divisions H3-H5] An electric arc vacuum heating apparatus has segmented graphite electrodes 4 each supported . by a lifting device 6 and extending into a container 1 through a pair of sleeves 7a, 7b that provide a vacuum lock enabling further sections 13 to be added to the electrode without breaking the vacuum in the container. Each electrode 4 is composed of section 12 and extends into container 1 though holes 10 in lid 2 and radiation shield 2a. Sleeve 7a is vacuum tightly attached to the lid around hole 10 and a vacuum tight sealing means is provided between this sleeve and the electrode that permits raising and lowering of the electrode. Second sleeve 7b surrounds first sleeve 7a and is sealed to it by stuffing box 7c. Sleeve 7b also surrounds the upper part of electrode 4 and is provided with a vacuum tightly closable lid 9 through which additional sections e.g. 13 are added to electrode 4. The electrode is gripped between spring-loaded jaws 6a operable hydraulically, connected to lifting device 6 by a current supply arm 5 that passes vacuum tightly through sleeve 7b. In use, when it is desired to add an electrode section, current is supplied through a second electrode 4 to keep the process going. The first electrode is then lifted to its highest point, vacuum in the lock is broken, lid 9 opened, a new section 13 attached, jaws 6a released, the electrode lowered to its new position, jaws 6a closed, lid 9 closed and the lock again evacuated. Compensator 8 permits some tilting of sleeve 7b during addition of the new electrode section. The metal to be melted or degassed may, but need not, be in a separate vessel 3.
Patent GB-634809-A (GB)
Title: Improvements in or relating to venetian blind tilting devices
IPC: E06B9/307
Filed: 1947-07-14
Abstract: 634,809. Venetian blinds. LORENTZEN HARDWARE MFG. CORPORATION. July 14, 1947, No. 18648. Convention date, Feb. 11, 1939. [Class 20 (iii)] Tilting mechanism for vene-  tian blinds comprises a wormdriven gear sector 15 connected to a tilt bar 12 and a cord-operated pulley 27 for rotating the worm 22 which is mounted at the end of the pulley shaft 24 journalled in a tubular bearing 25, provision being made for rotation of the worm out of mesh with the gear to compensate for cumulative slippage of the cord on the pulley. When by such slippage further pull on the cord causes the end of the toothed portion 15a to be reached an adjacent portion 15c pushes over an arm 36 on the gear sector pivot against a spring 39 until its nose 36a strikes the end of a slot 33 permitting free movement of the worm while the gear sector is arrested until a cord stop S abuts against a pulley guide 29. Pull on the other branch of the cord restores the slats to non-tilted position, whereafter pull on either tilts the slats until enough slippage has occurred to effect a further free rotation of the worm. A modified stop comprises a rubber ring secured between the flanges of telescoped eyelet-shaped members having inwardly directed fingers engaging the cord. The stops may be dispensed with.
Patent GB-255908-A (GB)
Title: An improved leather oil and process of making the same
IPC: C14C9/02
Filed: 1926-07-27
Abstract: 255,908. Standard Development Co., (Assignees of Becker, A. E., and Boehm, A. B.). July 27, 1925, [Convention date]. Impregnating; tanning with special chemicals. -A. composition for the treatment of leather after tanning &c., or as a leather belt dressing consists of a mineral oil of lubricating grade containing a substantial amount (from 5 to 30 per cent) of oil-soluble sulphonate residue from the acid treatment of petroleum, with or without a saponified organic oil. Fatty material may also be present. The oil-soluble sulphonate may be prepared in the usual way by alcohol extraction of mineral oil which has been treated with acid and neutralized with alkali. If the sulphonate contains free alkali, sufficient cod oil, or other saponifiable organic oil, to neutralize the alkali is added, producing a soap. A typical composition contains 90 per cent of mineral oil, 8.5 per cent of sodium sulphonate, and 1.5 per cent of cod oil soap. In making the composition, the sodium sulphonate is added to the mineral oil, heating and stirring being usually necessary. If residual alkali is to be neutralized, cod oil or other saponifiable organic oil is added, and the mixture is heated and stirred and allowed to cool and settle. Additional cod oil or other fatty material such as olive oil, neats foot oil, sperm oil, tallow or mixtures of these may be added. The composition may be made into an emulsion with water, and used alone or with a proportion of animal or fish oil.
Patent GB-1215917-A (GB)
Title: Machine tools
IPC: B23Q3/157
Filed: 1969-04-11
Abstract: 1,215,917. Programmed electric control. KEARNEY & TRECKER CORP. April 11, 1969 [April 23, 1968], No.18734/69. Heading G3N. [Also in Division B3]  A machine tool having a plurality of spindles each carrying a tool controlled by programmed means for operating the tool in cycles of machining operations has means under the control of the programme for changing the tools unitarily between cycles. The tool which may be of the three spindle type may be controlled numerically by tape or other means and the various operations performed by a hydraulic system controlled by servovalves. The machine may perform a number of successive  cycles of machining operations with different tools at each cycle, the control system automatically exchanging tools between the cycles and continuing each new cycle with different sets of tools in each case. At determined points in each programme, spin dles 11-13 are stopped and a tool exchange frame 18 is rotated from its idle position so that empty tool sockets 32 are in line with the spindles 11-13. A tool carrying head 7 is lowered to exchange height and a "U'' frame 19 is advanced by a cylinder 550 so that grippers (33) Fig.7 (not shown) grip annular V recesses on the tools which, when the head 7 is elevated a clearance distance, release the tools. The "U" frame is then rotated +90 degrees by a motor 560 and head 7 is moved leftwardly so that the spindles are coaxial with the fresh set of tools. Head 7 is re-lowered to engage the fresh tools and subsequently raised again to its working position. Thereafter the "U" frame is retracted, the tool frame returned to its idle position and the "U" frame rotated by -90 degrees in which position the old tools are removed by hand and fresh tools inserted in the appropriate sockets. As tools are locked to the spindles, prior to old tools being disengaged, and after new tools are engaged, such locks have to be released and reengaged. Prior to release the spindles are arranged to stop so that they are correctly positioned for the locks to be released and similarly fresh tools must be correctly placed in the sockets. Electrical and hydraulic circuits are described in the Specification for operating the machine and the tool interchange sequences the latter being controlled by limit switches during an arrest of the programme.
Patent GB-859048-A (GB)
Title: Improvements in and relating to stencils
Inventor: YOUNG ROBERT ERIC
IPC: B41C1/14
Filed: 1957-01-12
Abstract: 859,048. Stencils. ARMSTRONG WHITWORTH AIRCRAFT Ltd., Sir W. G. May 7, 1957 [Jan. 12, 1957], No. 18754/60. Divided out of 859,047. Drawings to Specification. Class 100(2) In order to prevent spread laterally, under the solid area of a stencil, of material being applied to a surface on which the stencil is lying, the edges of the cut-out portions are defined by lips turned down vertically and making the only contact with the surface.
Patent GB-697326-A (GB)
Title: Improvements in or relating to the manufacture of hollow articles from plastic materials
IPC: C03B9/14
Filed: 1950-07-27
Abstract: 697,326. Blowing glass-ware. WALKER, J. S., and FRASER & GLASS, Ltd. July 26, 1951 [July 27, 1950], No. 18805/50. Class 56. [Also in Group V] A tube of thermoplastic material, e.g. glass, is extruded over the open end of a nozzle 22 which is connected to a compressed air line 23, the nozzle being in line with the extruder (not shown) but separate therefrom and pointing towards it, and the two mould halves 8, 9 are closed around the extruded tube (to the position shown). The mould halves compress the lower or free end of the tube around the nozzle and at the same time compress and seal the upper end of the tube and cut it off from the parent body. Air is then blown through the nozzle to expand the tube into contact with the inside of the mould. The hollow article thus produced is allowed to cool, the mould halves are separated and the article is removed. The article may be a container, bottle or toy. The mould halves have threaded portions 30, 31 which form a screwthreaded neck on the hollow article. The nozzle 22 may be formed with threads or projections the shape of which is imparted to the interior of the container. The mould halves are mounted on members 2, 3 which slide on rails. The nozzle is carried by a slide 4 which is moved by means of a handle 7. The mould halves are urged together by compressed air acting on pistons 13 and are urged apart by springs 20; alternatively, the mould may be closed by hydraulically- or mechanically-operated cams or toggles. Material adhering to the extruder orifice may be removed by a knife or scraper attached to the mould and passing over the face of the orifice when the mould is closed. After the mould is opened the article may be blown off the nozzle by air blast from the latter. Both the mould and the nozzle may be water-cooled. A series of moulds with air nozzles may be mounted on an intermittently - rotated disc which brings the moulds in turn under the extruder.
Patent GB-242356-A (GB)
Title: Improvements in insulated electric cable joints
IPC: H02G15/22
Filed: 1924-08-07
Abstract: 242,356. British Thomson-Houston Co., Ltd., (General Electric Co.). Aug. 7, 1924. Junction boxes; earth-continuity couplings.- A joint for sheathed cable is enclosed in an outer casing 15 within which is a ground shield 11 of coiled wire or other metal electrically connected to a flange 12 on a disc 6 that is jointed to the sheath 3. The shield 11 is flared to fit over added insulation 10 of cambric or paper tape impregnated with petrolatum, similar to the insulation 2 of the cable. The cable insulation 2 is cut away to expose the adjacent ends of the cables 1, 1', which are joined by a soldered sleeve 8 and covered with insulation 9. The form of the surface 4, 5, 13 is such as to give a uniform potential gradient between the cable and the casing 15. The filling oil or compound 20 is introduced through a distributing chamber 17. Specification 222,359 is referred to.
Patent GB-864396-A (GB)
Title: Improvements in or relating to air cooled internal combustion engines
Inventor: HOCKEL HANS LUDWIG
IPC: F02F1/34
Filed: 1959-06-03
Abstract: 864,396. Construction and cooling of cylinders; combustion chambers. MOTOREN-WERKE MANNHEIM AKTIENGESELLSCHAFT VORM. BENZ ABT. STAT. MOTORENBAU. June 3, 1959, No. 19000/59. Classes 7(2) and 7(3). An air-cooled cylinder head has a central aircooling channel 22, Fig. 2, between integral inlet and exhaust passages 5, 6 and an auxiliary combustion chamber 10 which is partly surrounded by the cooling air inlet side of the air channel, and is so arranged that a first portion of the cooling air is directed to cool the combustion chamber 10 and then deflected upwards whilst a second portion is directed downwards to cool the central portion 32, Fig. 1, of the cylinder head base 1. The first portion is deflected in the direction of the arrows D by the fins 9 of the combustion chamber 10 into the channel 29 which passes underneath the top portion (or rocker box) 2. A relatively cool second portion passes along with, but outside of, the first portion taking the path of the arrows E until it is directed downwards by the fins 31 on to the central portion 32. The horizontal web 27 keeps the first relatively hot portion of cooling air out of contact with the second portion. In Fig. 3, the combustion chamber 10 is secured to an insert 14 which has thermal insulation provided by an air gap 35, a sealing ring 40 and the collar 36 of the insert. The combustion chamber 10 is described in Specification 850,315.
Patent GB-1132947-A (GB)
Title: Anti-sway device for suspended loads
IPC: B66C5/00
Filed: 1967-04-25
Abstract: 1,132,947. Preventing swinging of loads in cranes. PACIFIC COAST ENG. CO. 25 April, 1967 [11 July, 1966], No. 19020/67. Heading B8B. Swinging of a load 17, Fig. 1, is damped by ropes 21 wound on drums on a trolley 11, the arrangement being such that when the ropes are unwound unequally, due to the load swing- ing, a brake opposes the unwinding, whilst no braking occurs when all the ropes are unwinding at the same rate, i.e. when there is no swinging The ropes 21, Fig. 3, are wound on drums 39 and slack is taken up by spring-drums 41. The drums 39 are mounted on shafts 35, 37 which can rotate a central shaft 33 through unidirectional couplings 43. The central shafts on either side of the trolley 11 are connected by chains and sprockets 71 to drive shafts 65, Fig. 5, which are connected to a differential gear 45 through reverse-locking drive couplings 67 and shafts 59. When the load is lowered without swinging, both sets of ropes 21 are paid out at the same rate, thus, both centre shafts 33 rotate at the same speed and this causes drive shafts 65 to rotate. This rotation is transferred to shafts 59 through couplings 67 and their side gears 61, 63, Fig. 5. Because of the way the ropes 21 are wound on drums 39 these gears rotate in opposite directions, so that pinion gears 53 merely rotate without turning the casing 55, 51, on which they are mounted and no braking occurs. When the load swings, two of the ropes 21 will be unwound and therefore only one shaft 59 will be rotated through the driving connections. Since one of gears 61, 63 is moving and the other stationary, the pinions 53 will rotate the casing 51 against the action of the brake 79 and the swinging will be damped. Swinging in the opposite direction will cause rotation in the opposited sense of casing 51. The rope drums 39 may be arranged to damp swinging in two directions at right angles to each other. Two ropes and drums may be used instead of four.
Patent GB-843198-A (GB)
Title: Improvements in the manufacture of low-tension sparking plugs for engines
Inventor: PERAS LUCIEN
IPC: H01T13/52
Filed: 1957-06-18
Abstract: 843,198. Sparking plugs. REGIE NATIONALE DES USINES RENAULT. June 18, 1957, No. 19183/57. Class 7(4). [Also in Group XXXVI] A method of manufacturing a cartridge for a low tension surface discharge sparking plug comprises applying the inter electrode insulator of a refractory material to the electrodes by a hot spraying process using either a rod or a powder of the insulating material projected into the flame of the blow-pipe. In Fig. 2 a separate coating of alumina is applied to each electrode 1, 2. The coatings are ground flat and the parts are assembled as shown. In Fig. 3 the spraying process is applied at 10 whilst a borosilicate glass is employed at 11. The latter is placed in position as described in Specification 822,283 referred to. The insulatory material may be zircona, titanium oxide or procelain. The electrodes may be used without grinding.
Patent GB-613721-A (GB)
Title: An improved plant supporting stake and clip means for use therewith
IPC: A01G9/12
Filed: 1946-06-27
Abstract: 613,721. Plant supports. HEMSLEY, C. R. June 27, 1946, No. 19299. [Class 6 (ii)] A plant support consists of slotted anglemetal a with a pronged end c. Clips or ties are passed around the plant stems and into the slots h. They may have bent back or overlapping ends ; or the ends of a gapped ring f may be closed by a spring-pressed retractible bolt f<SP>1</SP>.