baber/WOPTO huggingface dataset:
Patent GB-527738-A (GB)
Title: Improvements in or relating to injection moulding
IPC: B29C45/14
Filed: 1939-04-19
Abstract: 527,738. Moulding thermo-plastic material. CELLULOID CORPORATION. April 19, 1939, No. 11814. Convention date, April 22, 1938. [Class 87 (ii)] Apparatus for the production of an injectionmoulded article, e.g. a faucet handle, wirelessset knob or typewriter key, containing a preformed insert 4 adapted to enable the article to be secured to a stem or spindle by means of a set-screw, comprises a mould having a front half 12 and a back half 21 movable with respect to each other, a support 23 corresponding substantially to the stem or spindle to which the moulded article is to be secured and adapted to prevent rotation of the insert mounted thereon, and a plunger 26 movable transversely in the mould and adapted to protrude through the mould space into engagement with a setscrew hole 9 in the insert to hold it in a fixed position during moulding and to provide for the moulding in the article of an aperture 9<SP>1</SP> in alignment with the set-screw hole in the insert. In order to position the insert, the support has teeth 7 and a flat surface 8 produced by the absence of one tooth, to enter a correspondingly shaped recess in the insert. A cam 28 connected by a pin 29 to the front half 12 of the mould operates on the plunger to move it into and out of engagement with the insert as the mould halves are moved towards and away from each other. The insert may have substantially the same contour as that desired in the finished article. The spine 16 formed in the channel 13 is cut away from the front face of the article, and a groove, fillable with coloured material, is cut in that face to separate the part from which the spine is cut from the remaining surface. The channel 13 may be divided or quartered at or near to the entrance to the mould space or branched out at a downward angle, to produce a turbulent inflow of the thermoplastic material. Specifications 460,078 and 489,467, [Group IV], are referred to.
Patent GB-734451-A (GB)
Title: Improvements in or relating to power transmission mechanism
IPC: B64C27/12
Filed: 1953-04-29
Abstract: 734,451. One-way clutches. UNITED AIRCRAFT CORPORATION. April 29, 1953 [May 16, 1952], No. 11862/53. Addition to 734,450. Class 80 (2). [Also in Groups XXIX and XXXIII] A one-way clutch of the kind described in the parent Specification is in parallel with a fluid coupling which may be filled and emptied under the direct control of an operator. Oil is supplied to the coupling from a reservoir 148 by a pump 144 driven by a motor 152 controlled by a switch 154. A nozzle 160 supplied from the pump discharges on to a conical slinger 162 which feeds oil centrifugally through passages 164 in the impeller. Passages 166 in a casing 116 constantly discharge oil, at a slower rate than it is supplied to the coupling, into an outer stationary casing 118 from which it is returned by a scoop 170 to the reservoir. The pump may be dispensed with if the reservoir is placed above the coupling, a valve being provided to control gravity feed to the nozzle. The invention is described applied to the transmission between a helicopter rotor and its engine (see Group XXXIII).
Patent GB-395121-A (GB)
Title: Iron alloy rolls
Filed: 1932-04-25
Abstract: Chilled iron rolls are made by casting in chill moulds iron alloys containing 2,6-3,85 per cent of carbon, 2,5-5 per cent of nickel, 0,15-0,65 per cent of silicon, 0,15-0,27 per cent of manganese, and an amount of chromium not exceeding about one-tenth of the nickel content.  In some cases the alloys may contain also 0,15-0,5 per cent of molybdenum, when they may contain 1,25-5 per cent of nickel and 0,2-1 per cent of silicon.
Patent GB-559253-A (GB)
Title: Improvements in and relating to methods of coating electric discharge tubes
IPC: C09K11/02
Filed: 1942-08-25
Abstract: 559,253. Coating surfaces. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 25, 1942, No. 11955. Convention date, Sept. 2, 1941. [Class 95] [Also in Group XL] A discharge tube is coated with a liquid suspension of a finely-divided fluorescent substance in a carbonaceous binder comprising a minimum of binder solid consistent with effective coating viscosity, and, after the coating has dried on the wall of the tube, the binder is dissolved out leaving the fluorescent material on the wall. A residue of binder material may be left to improve adhesion of the coating and this may subsequently carbonize under vacuum in the tube. The fluorescent material may be alkaline earth phosphate activated by cerium produced for example as described in U.S.A. Specification 2,306,567. The material is milled together with a binder composed of ¢ per cent. of nitrocellulose and 99¢ per cent. of butyl acetate. After coating this on the discharge tube the binder is removed by immersion in a bath of acetone. Specification 542,517 is referred to.
Patent GB-1224912-A (GB)
Title: Apparatus for electrostatically spray coating articles with a liquid coating material
IPC: B05D1/04
Filed: 1968-03-20
Abstract: 1,224,912. Spray producers. DEVILBISS CO. 20 March, 1968 [20 March, 1967; 25 Oct., 1967], No. 11997/69. Addition to 1,224,911. Heading B2F. Electrostatic spray coating apparatus comprises an air-atomising device including an elongated passage 48 of insulating material through which liquid coating material is fed to a discharge nozzle 51, means 57 for discharging compressed air adjacent to said nozzle, an electrode 70 making contact with the coating material only at a position in the passage intermediate its ends, and means 30 for connecting the electrode to a source of voltage 32. Coating material may be supplied through line 19 to passage 48, flow being controlled by needle valve 21 which, with air valve 13, is controlled by trigger 14. The air may be discharged with a whirling motion by angular slots in flange 58. In an alternative embodiment the outlet may comprise an elongated arcuate slit.
Patent GB-527821-A (GB)
Title: Improvements in or relating to drilling, milling and like machine tools
IPC: B23B47/18
Filed: 1939-04-21
Abstract: 527,821. Drilling, milling &c. machines. SOC. GENEVOISE D'INSTRUMENTS DE PHYSIQUE. April 21, 1939, No. 12007. Convention date, May 2, 1938. Addition to 477,123. [Class 83 (iii)] In a feed indicator for a drilling, milling, or like machine wherein a slide external to the spindle is movable therewith through equal distances for indicating the feed, the slide is connected to the spindle quill by a non- extensible flexible member passing over at least one roller. The quill 2 is connected to the indicating slide 10 by a hardened steel band 7 passing over two ballbearing rollers 8, 9 so that the quill and slide move in the same direction. A block 12 may be connected to the slide by a spring pin 19 and carries an indicating dial 14 provided with a plunger 15 for co-operating with a stationary platform 16 or gauge blocks resting thereon. The slide and block slide in guides 11, 13 of the spindle head 1 and the platform 16 is adjustable by a micrometer screw 16a and locked by a button 18. If the slide 10 moves horizontally the band 7 may be tensioned by a spring.
Patent GB-1390597-A (GB)
Title: Furnace transport roller
IPC: C03B35/18
Filed: 1973-03-20
Abstract: 1390597 Furnace rollers SCHMIDT CLEMENS EDELSTAHLWERK 20 March 1973 12036/73 Heading F4B [Also in Division F2] A furnace transport roller comprises a hollow tubular body 1 and stub shafts 4 of high temperature alloy, the body 1 being closed by end plates and filled with a protective gas at subatmospheric pressure. The shafts 4 are attached to the end plates by extension pieces 2. A pressure gauge may be connected to the hollow body through one of the shafts 4 and a valve may be provided to replenish the gas if necessary.
Patent GB-966250-A (GB)
Title: Improvements in the manufacture of trialkyl aluminium compounds and dialkyl aluminium alkoxides
IPC: C07F5/06
Filed: 1962-03-29
Abstract: Trialkyl aluminium compounds and dialkyl aluminium alkoxides are prepared by reacting sodium tetra-alkyl aluminium compounds and sodium trialkyl aluminium alkoxides respectively with aluminium in the presence of mercury.  The sodium compounds may be in part replaced by the corresponding potassium compounds.  The reaction may be conducted at a temperature between 60 DEG -250 DEG C. and at atmospheric pressure or at an elevated pressure of not more than 5 atmospheres, and if desired in the presence of a solvent or diluent, e.g. an aromatic hydrocarbon, an ether or tertiary amine. An excess of aluminium may be employed.  The by-product amalgam may be electrolysed to recover the sodium, which in its turn may be converted to sodium hydride which may be further be reacted with a trialkyl aluminium or a dialkyl aluminium alkoxide and an olefin to yield one of the starting materials. The mixture produced comprising 3 mols of trialkyl aluminium and 1 mol of dialkyl aluminium alkoxide may be reacted with an alcohol to give 4 mols of dialkyl aluminium compound. The trialkyl aluminium compound may be separated from the dialkyl aluminium alkoxide by distillation.  Specifications 763,284, 770,707, 836,792, 923,651, 946,684 and 955,252 are referred to.
Patent GB-738978-A (GB)
Title: Improvements in or relating to the production of a colour corrected photographic multi-layer negative image
Inventor: LUYTEN PAUL LEO
IPC: G03C7/18
Filed: 1952-05-13
Abstract: 738,978. Colour photography. GEVAERT PHOTO-PRODUCTEN N. V. May 13, 1953 [May 13, 1952], No. 12107/52. Drawings to Specification. Class 98 (2). After processing a multilayer-colour former film of conventional sequence to colour, the top layer, sensitive to blue light only, is reexposed with blue light through the underlying layers containing coloured images and is further colour developed in such a way that development proceeds preferentially in the top layer only to produce a colour-correcting mask therein. This selective development may be effected by use of loaded developers, by interruption of development at a propitious moment in which case development may be accelerated by use of a higher temperature, increase of developer concentration, increase of pH of the developer or reduction of KBr content; or by use of special developing substances such as N-N-di-ethyl-p-phenylene diamines substituted in the 3-position. In six examples negative films of such nature are exposed, colour developed, treated for five minutes in specified ferricyanide-bromide bleaching baths, hardened, re-exposed through the base with blue light of specified times and intensities and given as second colour developments (1) 3 minutes at 20‹ C. in a developer containing 3-methyl-N-N- diethyl-p-phenylene diamine hydrochloride (2- methyl-4-diethyl amino aniline hydrochloride), (2) 3 minutes in an N-N-diethyl-p-phenylene diamine hydrochloride developer loaded with isopropyl alcohol, (3) 3 minutes in a developer containing 3 - acetyl - amino - N,N - diethyl - pphenylene diamine sulphate (2-acetyl-amino-4- diethyl amino aniline sulphate), (4) 30 seconds in the developer of example 1, (5) 2 minutes in an N-N-diethyl-p-phenylene-diamine hydrochloride developer containing no bromide, (6) 3 minutes in a N-n-butyl-N-ethyl-p-phenylene diamine sulphate developer. These second colour developments are followed successively, by treatments in acid hardening fixing baths, bleaching baths and normal fixing baths to provide the washed negatives. Specification 541,266 and U.S.A. Specification 2,336,243 are referred to.
Patent GB-235693-A (GB)
Title: Improvements relating to the manufacture of carburetted water gas
IPC: C10J1/213
Filed: 1924-05-17
Abstract: 235,693. Woodall-Duckham (1920), Ltd., and Rider, D. May 17, 1924. Producers.-In carburetting water gas, the products of the oil cracked during the blow " are introduced with the steam passed into the generator during the " run." The carburettor comprises a long tube a filled with refractory packing and placed in a water gas generator chimney b lined with refractory material having projecting ridges c. The carburettor is connected at its top end to a gas holder o, at its bottom end through a pipe h to a pipe k through which steam is injected into the generator, and at its middle with a U-shaped tube q through which oil is supplied from a tank r. During the blow oil flows into the carburettor and is cracked, and the oil vapour is stored in the holder o until the pressure therein overcomes the pressure due to the head of oil in the U tube q and tank r, a period of time which is arranged to coincide with the length of the " blow." During the " run " the oil vapours are drawn from the holder o down through the carburettor and introduced with the steam into the generator. Pipes l, f are provided for blowing air through the carburettor when it becomes choked.
Patent GB-838453-A (GB)
Title: Improvements in or relating to spray producers
IPC: A61M11/00
Filed: 1957-04-15
Abstract: 838,453. Spray-producers. RYBAR LABORATORIES Ltd. (Lehr, O. E.). March 6, 1958 [April 15. 1957No. 12284/57. Class 69 (3). A medicament sprayer includes a liquid receptacle 10 and an air bulb 11 by which air is forced through a bore 5 in an integral body 1 and impinges upon a baffle 14 integral with a collar 12 slid upon the body, to cause liquid to be drawn up from the base of the receptacle through a space 7 and from orifices 6 and sprayed. The outlet end of the body is of frustoconical shape.
Patent GB-1343119-A (GB)
Title: Flavone derivatives
IPC: C07C201/16
Filed: 1970-10-27
Abstract: 1343119 Flavone derivatives RECORDATI SA CHEMICAL & PHARMACEUTICAL CO 27 Oct 1970 [1 Aug 1970] 12302/73 Divided out of 1343118 Heading C2C The invention comprises the orthophosphate and succinate of P-piperidinoethyl 3-methylflavone-8-carboxylate. The compounds are prepared by treating #-piperidinoethyl 3-methylflavone-8-carboxylate with phosphoric or succinic acid.
Patent GB-154851-A (GB)
Title: Improvements in or connected with biscuit or like embossing and cutting machines
IPC: A21C11/10
Filed: 1919-06-30
Abstract: 154,851. Vicars, T., and Vicars, E. L. June 30, 1919. Sheet-cutting machines.-Relates to cutting-machines for biscuits &c. of the type having an embosser cross-head supported at the upper part of the machine upon threaded operating-rods, and comprises improved means for adjusting such cross-head upon the rods. The rods 2 pass through nuts 7 supported in brackets 8 extending from the cross-head 1, such nuts having toothed portions meshing with gears 5 engaging worms 4 on a central shaft 3 which extends longitudinally over the cross-head and is operable by a hand-wheel at one end. To provide for separate adjustment of each end of the cross-head, the shaft 3 is in two parts adapted to be coupled by a clutch 16 controlled by a lever 18 and rod 29 and a spring 20. The shaft 3 is secured, after adjustment, by a clamping-device 14, 15. A cover 10 encloses the gearing at each end of the cross-head.
Patent GB-683516-A (GB)
Title: Process of carrying out exothermic catalytic gas reactions
IPC: C07C1/04
Filed: 1951-05-25
Abstract: <PICT:0683516/IV (b)/1> <PICT:0683516/IV (b)/2> In the synthesis of hydrocarbons from carbon monoxide and hydrogen, the liberated heat of reaction is removed indirectly by an evaporating cooling medium which comprises a mixture of two or more organic liquid constituents having different boiling points, the boiling range of the medium being substantially greater than and including the necessary range of reaction temperature, so that the reaction temperature increases in the direction of gas flow, i.e. from top to bottom of the reactor. The process may be effected in multitubular or multiplate type reactors (Figs. 1 and 4 respectively).  Rectification is effected in the cooling medium chamber 1 (Fig. 1) or cooling tubes 23 (Fig. 4), and sieve trays 5 (Fig. 1) or 27 (Fig. 4), or alternatively bubble plates and caps, or packing such as rings, spirals and balls, may be provided for the purpose.  The lower boiling constituent vapours of the cooling medium are withdrawn overhead, condensed in an indirect steam generator 9 (Fig. 1) or 30 (Fig. 4) and returned to the top of the cooling chamber or cooling tubes.  The cooling medium preferably comprises mixtures of saturated hydrocarbons or hydrocarbon compounds such as paraffins, diphenyl and glycerine.ALSO:<PICT:0683516/III/1> In exothermic catalytic gaseous reactions, particularly the hydrogenation of carbon monoxide, in which the liberated heat is removed indirectly by an evaporating cooling medium, the cooling medium comprises a mixture of two or more organic liquid constitutents having different boiling points, the boiling range of the medium being substantially greater than and including the necessary range of reaction temperature, so that the reaction temperature increases in the direction of gas flow, i.e. from top p to bottom of the reactor.  The process may be effected in multitubular or multiplate type reactors, Figs. 1 and 4 respectively, Rectification is effected in the cooling medium chamber 1, Fig. 1, or cooling tubes 23, Fig. 4, and sieve trays 5, Fig. 1, or 27, Fig. 4, or alternatively bubble plates and caps, or packing such as rings, spirals and balls, may be provided for the purpose.  The lower boiling constituent vapours of the cooling medium are withdrawn overhead, condensed in an indirect steam generator 9, Fig. 1, or 30, Fig. 4, and returned to the top of the cooling chamber or cooling tubes.  The cooling medium preferably comprises mixtures of saturated hydrocarbons, or hydrocarbon compounds such as paraffins, diphenyl and glycerine.
Patent GB-212781-A (GB)
Title: Improved means for ornamenting glazed panels of, or for, doors, windows and the like so as to obtain lead-light effects
IPC: C03C17/00
Filed: 1923-05-08
Abstract: 212,781. Russell, G. May 8, 1923. G l a z i n g ; ornamental plates.-The glazed panels of doors, windows, shop fronts, show-cases, bookcases, &c. are ornamented to imitate lead glazing by the application of strips 9 of lead cemented to the glass and formed into any suitable design. The joints of the strips may be halved and soldered &c. A table having grooves or ridges forming various designs may be used to facilitate assembling. When applied to existing windows &c., the strips are formed into a frame which is attached to the frame of the window. The under surface of the strips and bordering may be concaved to hold the fixing cement better. Some portions of the sheet of glass may be coloured.
Patent GB-399744-A (GB)
Title: Improvements in alternating current frequency changers employing grid-controlled discharge devices
IPC: H02M1/04
Filed: 1933-04-28
Abstract: 399,744. Frequency changing ; changing wave form. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. April 28, 1933, No. 12398. Convention date, April 28, 1932. [Class 38 (ii).] In a frequencychanger of the type employing grid-controlled discharge devices the grids of which are energized by superposed voltages of both frequencies. the voltage component of the higher frequency is given a peaked wave form by 'having superposed thereon peaked voltage impulses of the same frequency. The higher frequency voltage component is derived from the higher frequency network N by means of two transformers T1, T2 having their secondaries in series. The transformer T1 operates under normal conditions to produce a substantially sinsuoidal voltage wave. The transformer T2 has a resistance R in series with the primary and operates under saturation conditions thus producing a voltage wave of the character indicated in Fig. 2. Thus the resultant voltage appearing at the terminals A, B for application to the grids is of the form sbown in Fig. 3.
Patent GB-377689-A (GB)
Title: Improvements in and relating to the removal of powder from moulded confectionery fillers
IPC: A23G7/00
Filed: 1931-04-27
Abstract: 377,689. Cleaning moulded confectionery. BËCKER, E., 61A, Cumberlandstrasse, Vienna. April 27, 1931, No. 12403. [Class 87 (ii).] The powder coating is removed from confectionery fillers which have been moulded or cast in powder, e.g. in starch or the like, by washing or floating the powder off by means of a liquid in which the fillers are insoluble or nearly insoluble. The liquid is preferably one in which the powder is also insoluble, and it may, before use be saturated with the filler material or with the main constituent thereof, e.g. sugar. Suitable liquids are hydrocarbons of low boiling point, particularly those of the methane, ethylene or acetylene series, e.g. benzene or ligroin, ethyl ether, ethyl alcohol, chloroform, carbon tetrachloride or trichlor ethylene. As shown, the fillers are carried by an endless conveyer a, consisting of a grid or grating, through a chamber h in which the loose powder is removed by a blast of air from a blower i and by shaking the conveyer by tappers g, through a washing chamber k and then through a drying chamber r. The fillers are fed to the conveyer from the mould box e by means of a hinged table d, the box being covered by a plate f and the table then swung over on to the conveyer, whereupon the plate p is removed. Powder falling through the conveyer in the chamber h is carried by a chute q to a conveyer j. The washer comprises a bath l fed with liquid from a tank m by a pump n and pipe o, the liquid flowing across the conveyer to a return pipe p. The pipes may be arranged so that the liquid flows in the opposite direction to the travel of the conveyer. The liquid from the tank m may be drawn into a settling tank or into a centrifugal separator. In a modification, the liquid is sprayed upon the fillers as they pass through the washer. In the drying chamber r, the conveyer is acted upon by a tapper s to shake off adhering liquid on to a tray from which it is returned to the tank m through a pipe t, and the vapour-laden air is withdrawn by a suction pump u through a trunk extending through the tray into proximity to the conveyer a.
Patent GB-1368048-A (GB)
Title: Electromagnetic clutch assemblies
IPC: F16D27/105
Filed: 1973-03-15
Abstract: 1368048 Electromagnetic clutch GENERAL MOTORS CORP 15 March 1973 [20 March 1972] 12424/73 Heading F2C An electromagnetically actuated coil spring clutch for driving an output shaft 14 (to a compressor) from a pulley assembly 63 comprises a stationary electromagnetic coil 46 and a coil spring 77 engaging a slot of an armature ring 86 at one end, surrounding a hub 64 of the pulley assembly and attached to a driven hub 34 at its other end, so that on energization of the coil 46 the armature ring 86 frictionally engages a wall 68 of the pulley assembly 63 on either side of arcuate slots 73 due to the flux following path 104, which causes the spring 77 to be wound up to engage hub 64 and so transmit drive therefrom to shaft 14 via hub 34. In an alternative embodiment a resilient element between the hub to which the spring 77 is attached and shaft 14 absorbs shocks, and the flux follows a different path travelling radially out into the pulley assembly rather than axially across a gap 72 as shown.
Patent GB-714003-A (GB)
Title: Improvements in or relating to metal-cutting machines
IPC: B23Q5/40
Filed: 1952-05-17
Abstract: 714,003. Screw and nut gearing. SCOTTISH MACHINE TOOL 'CORPORATION, Ltd., and DONALD, G. May 18, 1953 [May 17, 1952], No. 12547/52. Class 80 (3) [Also in Group XXII] A metal-cutting machine comprises a rotatable feed screw 3 and means 5 for holding it against rotation. and a nut 6 which engages the screw and is rotatable by power means 9 through a variable hydraulic transmission such as a pump and swash-plate motor. The slide 2 may support a cross-slide driven in a similar manner.