baber/WOPTO huggingface dataset:
Patent GB-424626-A (GB)
Title: Improvements in and connected with the production or manufacture of photo-mechanical printing blocks and/or rollers
IPC: B41C1/06
Filed: 1933-06-21
Abstract: 424,626. Photomechanical printing- surfaces. MONTGOMERY, C. J., Ivy Cottage, Kirkvale Lane, Kirkheaton, Huddersfield. June 21, 1933, No. 12844. [Class 98 (ii)] Printing blocks and rollers are prepared by producing a photograph of the original on a light-sensitive layer, tanning the image, bombarding the tanned image in an oscillating electric field with a finely divided acid resisting substance, transferring the resulting image in acid-resisting material to the surface of the block or roller and etching the surface. The acid resisting substance may be a resin, such as dragon's blood, or asphalt. The resulting surface may be built up by electroplating, e.g. with chromium. In carrying out the process, a sensitive emulsion containing a small quantity of sugar, glycerin or the like is applied to a paper support which may have a thin coating of celluloid and the surface rendered hard by pressure between rollers, e.g. of steel, or chemically by the application of alum or formaldehyde. The layer is then exposed, developed and treated by a tanning solution which hardens the exposed parts, e.g. a solution of potassium bichromate. The tanned surface is then placed between two metal plates connected to a high tension alternating current supply, a nonconducting plate, the surface of which is covered with powdered resin being interposed between one of the metal plates and the tanned surface. The resin is deposited on the image in a density depending on the degree of hardening of the surface. The surface bearing the resin is then applied to a copper plate or roller and the latter is heated to melt the resin which thus adheres to the plate, forming a resist, after which the plate is etched. The etched parts may then be filled in with acid resisting ink or wax and the plate electroplated e.g. with chromium. The depth of the hollows may be afterwards increased by further etching. For an intaglio plate, a negative of the original is first prepared and a contact print made therefrom.
Patent GB-413466-A (GB)
Title: Improvements in toy aircraft
IPC: A63H27/00
Filed: 1933-05-03
Abstract: 413,466. Toy aircraft. WILMOT, MANSOUR, & CO., Ltd., and BRISTOW, J. W., Triang Works, Morden Road, Merton, London. May 3, 1933, No. 12937. [Class 4.] The propeller spindle of a toy aircraft is prevented from tilting in its bearing to avoid vibration, and to prevent damage to the propeller when the toy crashes it is hinged to its spindle and normally kept at right angles thereto by the tension of the elastic motor. The propeller is formed from a twisted strip of wood 3 notched at 4 to receive the looped end 7 of the spindle 2 which passes through a hole in a metal clip 5 embracing the propeller. A grooved wood nose piece 6 embraces the clip and the parts are pinned together by a wire 9. Where gearing is used, the propeller spindle is free to slide in its gear wheel to allow tilting of the propeller to take place when necessary.
Patent GB-1446299-A (GB)
Title: Thermoplastic melt process and apparatus
IPC: B29C39/00
Filed: 1975-03-27
Abstract: 1446299 Melt filtration CELANESE CORP 27 March 1975 [28 March 1974] 12941/75 Heading B5B Melt from a source 10 is diverted by means 12 through two filters 14 and 15 each provided with removable filter means then into a reservoir 18 fitted with a level controlling means, through a pump 20 and finally a polishing filter 22 to a die a spinneret 24. The diverting means, preferably a three way valve allows the flow of melt through one of the filters while the other filter is serviced. The reservoir 18 is closed by a cover 31 and the melt blanketed with an inert gas 33 provided through conduit 32 and controlled by means 34. Inlet stand pipes 17 and 19 are in communication with the conduit pipes 13 and 15 and level controlling means 26 automatically adjusts the flow of melt from source 10, into the reservoir so that the level of melt is maintained between 21h and 211 and provides a constant head of melt for supply to 24. The assembly is used to produce high quality polyethylene terephthalate tape.
Patent GB-636556-A (GB)
Title: Rotameter for remote indication, recording, integration, or controlling of fluid flow
IPC: G01F1/24
Filed: 1947-05-14
Abstract: 636,556. Flow - meters. FISCHER & PORTER CO. May 14, 1947, No. 13021. Convention date, June 7, 1946. [Class 69 (i)] [Also in Group XXXVIII] A flow-meter for food liquids demountable for cleansing and constructed of stainless steel comprises a cylindrical intake tube 14 screwed to a pipeline 10 and connected by flanges and wing bolts to a tapered metering chamber 18 screwed to a cylindrical tube 19 and an outlet line 11. A disc-shaped head 21 supported intermediately the metering chamber and the lower tube, has a plurality of arcuate fluid openings, and carries a downwardly-extending sealed coil cartridge 27 containing a pair of coils 28, 29, into which an elongated armature 39 extends through a central aperture in the head 21. The armature is attached to a conical metering float 33 of the kind described in Specification 579,779, which moves vertically in the metering chamber, and is centred by a spider 41 guided by the tube 19. The float is positioned by the rate of fluid flow and the armature movement unbalances an electrical impedance circuit comprising the two coils to move a similar remote armature associated with an indicating, recording, integrating, and/or controlling unit of the kind described in Specification 610,708, [Group XXXVIII]. In a modification (Fig. 4, not shown), the coils have a larger bore, accommodating a tubular armature through which liquid may pass.
Patent GB-1389729-A (GB)
Title: Decimal to binary converter
IPC: H03M11/22
Filed: 1972-03-21
Abstract: 1389729 Code converting DENKI ONKYO CO Ltd 21 March 1972 [23 March 1971 27 Dec 1971] 13144/72 Heading G4H A decimal to binary converter comprises binary conversion circuits 2A, having inputs which are selectively connected to the outputs of decimal digit selector circuits 11-13 containing switching elements (here transistors T 1 -T 3 ), controlled by variable resistance devices S 1 -S 3  whereby selection of a decimal digit alters the value of the resistance device, and thus the output of the corresponding circuit 11-13 so as to cause the appropriate combination of circuits 2A to generate the binary form of that digit. Initially, devices S 1 -S 3  have high resistance values and T 1 -T 3  are switched off; circuits 2A also contain transistors T 21 , T 22 , and these are initially conducting to give zero level logic outputs 2<SP>0</SP>, 2<SP>1</SP> at their respective collectors 21c, 22c. Selection of, e.g. digit 1 decreases resistance S 1  to render T 1  conductive, whereby current flows from transistor T 21 , through a diode D 1 , and through T 1  to a resistor Re; thus T 21  is switched off to provide a logic level one 2‹ output from 21c. A similar procedure provides the binary version of digits 2 and 3, and the procedure may clearly be extended to any number of digits. The devices S may be magneto-resistance effect devices operated by a push-button mechanism, Fig. 4, or semi-conductor photoelectric devices, or semi-conductor/conductive rubber pressure-sensitive devices. The circuits and the devices may be arranged so that selection of a digit increases the resistance of the corresponding device, and the corresponding transistor may be switched off rather than on (Figs. 6, 7, not shown). Integrated circuits may be employed instead of the transistors used above (Fig. 8, not shown), and voltage fluctuation across Re may be reduced by means of a non-linear element connected in parallel therewith (e.g. a diode, a Zener diode, a transistor or a varistor, Figs. 11- 15 (not shown)).
Patent GB-237683-A (GB)
Title: Improvements in variable electrical resistance devices
IPC: H01C10/24
Filed: 1924-05-28
Abstract: 237,683. Hale, G. W., Holden, L. H. T., and Radio Engineering Co., Ltd. May 28, 1924. Receiving sets, construction of.-A. switch may be mounted on the frame a of a filament resistance in which a drum e carrying the resistance wire d is mounted for independent rotary and axial sliding movements relatively to a stationary contact k by suitable operation of a handle f for use with bright-filament and dull-emitter valves respectively. One blade of the switch carries an insulating button co-operating with the drum c to hold the blade against a second contact blade and the switch is opened by separation of the blades when the drum is moved to its rear-most position. The rheostat may then be used to control the filament current of a detector valve and the switch to control the filament circuits of the other valves, these circuits being completed only when the resistance d is in circuit. A valve holder comprising an insulating plate l, and sockets u may be mounted on the frame a of a resistance of this kind, one socket being continuously in electric connection with the contact k of the resistance and terminals x, v for the filament battery being connected respectively to another socket and to the end of the resistance wire d through the operating rod g.
Patent GB-270903-A (GB)
Title: Improvements in hydro-carbon vapour burners
IPC: F23D11/44
Filed: 1926-05-25
Abstract: 270,903. Tilley, F. C. May 25, 1926. Vapour burners; vaporizing - apparatus.-In a vapour burner a rotatable eccentric spindle operating a spring- pressed needle J entering the jet orifice of the vaporizer tube A also operates simultaneously a fluted rod 7 engaging a spring- pressed valve 10 for controlling the entrance of fuel to the vaporizer tube. The valve 10 is carried by a fitting 8 having one end perforated at 9 and surrounded by a filter 13. Excessive pressure in the vaporizer will operate the rod 7 to allow excess fuel vapour to pass the valve 10 into the fuel container. Specification 202,484 is referred to in the Provisional Specification.
Patent GB-399748-A (GB)
Title: Improvements in or relating to steam-tight and water-tight doors for sterilizers and like apparatus
IPC: B01J3/03
Filed: 1933-05-06
Abstract: 399,748. Doors for resisting fluid pressure. ROBINSON, J. C. and SLATER & CO. (ENGINEERS), Ltd., J., 50, Wells Street, Oxford Street, London. May 6, 1933, No. 13241. [Class 123 (i).] In a steamtight or watertight door 1 secured in position by rotating a nut 4 to force arms 5 under the rim 7 of the door opening and then moving the nut axially to cause the arms 5 to press the door tightly against its seat, as described in Specification 16003/15, [Class 123 (i), Liquid-level regulating &c.], a positive connection is provided to ensure correct rotation and axial motion of the nut 4. The door is operated by a hand-wheel 2 attached to screw 3 on which nut 4 works as in Specification 16003/15. The positive connection shown comprises a bent pin 8 attached to the door 1 and working in a slot 9 in the nut 4 provided with cam surfaces.
Patent GB-271471-A (GB)
Title: Improvements in tyres or treads for wheels of automobiles, motor cycles and the like
IPC: B60C11/04
Filed: 1927-05-17
Abstract: 271,471. Bertram, K. L. H. May 19, 1926, [Convention date]. Mudguards rotating with wheels. - A pneumatic or other elastic tyre is fromed with side ribs 4 spaced from the tread ribs 5 and stated to act as side-splash guards.
Patent GB-132693-A (GB)
IPC: C22B26/10
Abstract: 132,693. Grauel, A. Dec. 30, 1918. Potassium hydrate and sulphate.-In the recovery of potash and potassium salts from silicates, the fume containing the potash from the kiln 1 is pumped into water which is superheated under pressure in the receiver 3, where impurities are deposited, and the potassium compound rises with the vapour and passes through the conduit 6 to the condenser 7. The solution obtained is passed to the evaporator 9. When pure water is used in the receiver 3, potassium hydrate is obtained, or gypsum may be mixed with the raw material used in the kiln, for the production of potassium sulphate.
Patent GB-133070-A (GB)
IPC: F41F1/00
Abstract: 133,070. Gori, C., and Minucciani, G. June 1, 1917. Addition to 125,597. Ordnance, mechanical; projectile fuses, devices on gun for firing.-Relates to the centrifugal gun described in the parent Specification, in which lenticular - shaped bombs are introduced into the mouth 4 of a throwing-tube 1 carried by a shaft 2 which is rapidly rotated from a hand-operated shaft 8 by spur gearing 7, 6 arranged within a casing 11 which can be traversed on a stand 15, the bombs being retained within the tube by catches 20 having rollers 21 engaging cams 22 which release the bombs when the tube occupies a predetermined position. According to the present invention, (1) the interior of the throwing-tube is provided with a projecting rib 24, Fig. 3, which operates, bv percussion, the time fuse of the bomb as it rolls out of the tube, (2) the throwing-tube is counterbalanced by adjustable receptacles 23 containing ballast and arranged in series, and (3) the bomb is provided with a groove 25, Fig. 5, into which the percussion cap 26 of the timo fuse 27 extends so as to be operated by the rib 24 on the throwing-tube.
Patent GB-993666-A (GB)
Title: A process for preparing organic oxygen-containing compounds, for example hydroxy compounds, and the resulting oxygen-containing compounds
Inventor: WILLIAM ERIC WRIGHT JAMES DONA
Filed: 1962-04-06
Abstract: Organic oxygen-containing compounds are prepared by oxidizing a trihydrocarbyl of aluminium or boron with molecular oxygen or ozone in the presence during at least the latter part of the oxidation of a cadmium or zinc compound as oxidation promoter. Suitable hydrocarbyls are those of formula MR3 in which the R groups are the same or different hydrocarbon groups and may be alkyl, aryl, alkaryl, aralkyl or cycloalkyl radicals.  The products include compounds of formula M(OR)aRb in which M is boron or aluminium, a is 1, 2 or 3 and b is 0, 1 or 2 and a+b=3, and the compounds of formula ROH obtained by the hydrolysis of these.  The preferred oxidation promoters are cadmium or zinc alkyls and alkoxides but other compounds, e.g. zinc oxide or zinc chloride, may be used. The preferred starting materials are aluminium trihydrocarbyls in which the hydrocarbon radicals are alkyl groups containing 4-30 carbon atoms, e.g. those derived from olefines obtained by the cracking of hydrocarbon streams from crude petroleum, by the Fischer-Tropsch process or by the polymerization of lower olefines.  The olefines may be converted to aluminium trihydrocarbyls by known methods. The oxidation may be carried out by air, pure oxygen or azone and preferably at a temperature in the range 40-130 DEG  C.  The hydrolysis of the oxidation product may be carried out by known methods.  After hydrolysis the organic layer can be separated from the aqueous layer which contains suspended alumina. Examples are given of the preparation of (a) C14-C18 alcohols from an aluminium trialkyl by reacting C14-C18 olefins with aluminium tri-isobutyl; (b) n-hexanol from borontri-n-hexyl; and (c) citronellol from 2,6-di-methyl-2,7-octadiene. Specifications 763,081, 763,824, 770,707, 794,359, 804,335 and 941,016 are referred to.
Patent GB-399749-A (GB)
Title: Improvements in and relating to the manufacture of articles of refractory material such as silica
IPC: C03B19/01
Filed: 1933-05-08
Abstract: 399,749. Fused silica. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Ellis, A. Le R.; 11, Banks Road, Swampscott, and Winckler, G. A. F. ; 29, Clearview Avenue, Worcester, both in Massachusetts, U.S.A.) May 8, 1933, No. 13366. Convention date, May 10, 1932. [Class 56.] A process for making a massive article of fused silica, such as a large astronomical mirror, consists in forming a base of translucent silica which contains gas bubbles, and fusing on to the base a facing of transparent vitreous silica which is free from gas bubbles. The base consists of a layer 4 of translucent silica which is deposited on a support 5 of refractory material by the method described in Specification 296,059, [Class 56, Glass]. The support is heated in a furnace to a temperature of 1000‹ C., and particles of silica are sprayed on to the support by an oxyhydrogen burner 9. The rate of gas feed, and the rate at which silica is supplied to the burner, are so regulated that the layer 4 of silica is laid down as rapidly as possible regardless of the inclusion of bubbles. When the layer 4 has attained the desired thickness it is allowed to cool, and irregularities and ridges 14, which are formed on its surface, are out away to provide a smooth surface. A facing of transparent vitreous silica is then deposited on the smooth surface by so regulating the feeds to the burner that deposition of the silica takes place more slowly.
Patent GB-569246-A (GB)
Title: Improvements in or relating to time switches or the like controlled by clockwork mechanism
IPC: G04C23/04
Filed: 1942-09-23
Abstract: 569,246. Clocks. LANDIS & GYR SOC. ANON.. Sept. 23, 1942, No. 13379. Convention date, Nov. 5, 1941. [Class 139] [Also in Group XXXVII] A time switch or like device operating under the control of a clockwise mechanism is so arranged that the whole of the clockwork mechanism or a sensitive part thereof, such as the escapement, is carried in a casing sealed off from the housing containing the device, but is in communication with the atmosphere. As shown in Fig. 1, a plate 4, supported on columns 3 on the base-plate 1 of the housing, carries the switch parts (not shown) and a casing 5 containing the clockwork driving mechanism and gearing. The gearing is connected by means 11, mounted in supports 6, to the escapement 10 which is carried in a casing 9 on the exterior of a plate 7. An aperture 12 in the casing 9 communicates with the atmosphere. As shown in Fig. 2, wherein the casing 9 and the escapement 10 is mounted within the housing, communication is made with the atmosphere through a tube 13 with a filter 14. In this. arrangement the escapement controls the clockwork mechanism in a casing 16. Alternatively, the whole of the clockwork mechanism can be arranged in the casing 9.
Patent GB-168014-A (GB)
Title: Improvements in, and relating to, travelling grates for furnaces
IPC: F23H11/00
Filed: 1920-04-14
Abstract: 168,014. Lloyd, W. May 4, 1916, [Convention date]. Fire-bars and grates. -Relates to travelling chain grates of the kind comprising main transverse bars each carrying a number of small bars forming the fuel surface. The links of the two chains carrying the main bars each consist of a pair of offset bars juxtaposed at one end and affording spaces in which projections 4 from the main bar heads 1 are secured by means of a pin 5, the head of which screws into one of the bushes 6 of the link and is looked by a cotter engaging a groove across the bush. The supporting-surfaces for the chain are provided bv renewable plates 9 secured by bevel-headed bolts 11 engaging bevelled slots in the plates thus allowing of slight longitudinal adjustments. Specification 141,725 is referred to.
Patent GB-120591-A (GB)
Title: Improvements in and relating to the Building of Concrete Structures.
Inventor: CLEMENTS JESSE
IPC: E04C1/40
Filed: 1918-03-18
Abstract: 120,591. Clements, J. March 18, 1918. Casting in situ.-Walls and other structures are cast in situ by means of permanent moulds, bags, or containers made of non-metallic network a having a minimum mesh of half an inch so that the fabric is covered and adjacent moulds are united by the exuding concrete. The network or fabric may consist of rope yarn, flax, reeds, grass, &c., the strands being knotted or secured together at the crossing points. Large moulds or containers may be provided with a core consisting of an inner container b fitted with cheap material such as ashes or earth c.
Patent GB-135145-A (GB)
IPC: F23D11/00
Abstract: 135,145. Thompson, H. A., Zulver, C., and Smith, L. E. June 23, 1919. Liquid-fuel fittings.-In liquid-fuel fittings for a solid-fuel furnace, a burner g is carried by a holder h mounted cm a casing c, which surrounds the firing opening d outside the front plate a. The burner extends into an air cone e, open at both ends and supported in the front plate a by a flange f. A fixed or movable regulator cone j may be provided on the burner. Specification 130,913 is referred to.
Patent GB-939585-A (GB)
Title: Improvements relating to scaffold units
Inventor: BOWDITCH DESMOND
IPC: E04G1/15
Filed: 1961-04-14
Abstract: 939,585. Scaffolding. CAUSEWAY STEEL PRODUCTS Ltd. April 16, 1962 [April 14, 1961], No. 13522/61. Class 20 (2). A domestic scaffold comprises an horizontal plank 10 fixed at one end by means of one of a number of holes 9 to an upright 2 and resting at the other end on a support such as a step-ladder 28. The upright 9 is welded to a transverse base tube 3 and has stays 4, 5. In the hole 9 is a bolt 15 securing one flap 14, curved to fit the upright 2, of a hinge the other flap of which is fixed to the bottom of the plank. Two overlapping hook members 18 pivoted to the top of the plank engage round the upright 2. The other end of the plank is secured to a tread 27 of the stepladder by hooks and an adjustable stop 26.
Patent GB-1468026-A (GB)
Title: Foldable step-ladder
IPC: E06C1/39
Filed: 1975-03-05
Abstract: 1468026 Step ladder convertible to seat or table; folding stool L J STONE 5 March 1975 [27 March 1974] 13528/74 Headings A4H and A4J [Also in Division El ] A step-ladder is constructed with a step section 4 in two parts, hinged together via two large steps 16A, 16B, and a prop 6, also in two sections hinged together, the arrangement being such that on hinging the prop 6 in towards the step section 4, the top step section can pivot downwardly and form the second half of a stool or table, as shown in Fig. 3. A pivotally-mounted stay 24 helps to steady the stepladder as do lower hinged stays 30, while the stool or table is stayed by an additional link 42. A carrying handle may be provided.
Patent GB-217578-A (GB)
Title: Improvements in or relating to centrifugal pumps
IPC: F04D29/62
Filed: 1924-06-02
Abstract: 217,578. Nash Engineering Co., (Assignees of Jennings, I. C.). June 15, 1923, [Convention date]. Pumping-machines; balancing moving parts ; casings; leakage-preventing devices.-A centrifugal water pump has a volute casing with integral inlet and outlet connections, and a separate detachable head portion, consisting of an end wall of the pump housing and the adjacent wall of the impeller casing, which forms a water chamber connected to the inlet associated with the volute casing. The pump 33 may be driven by any suitable motor 10 mounted on a base 11 with marginal walls 20, 21 and a downward extension 26 with a bolt-hole 28 at one end and a flange 29 at the other end for attachment to the pump casing. The motor shaft 32 is supported in bearings in the casings 30, 31 rigidly connected to the main housing of the motor. The pump casing has two main parts; one consists of the volute 34, the outlet 40, and the inlet 37 into the radially projecting part 35; the other part consists of the wall 42 of the impeller casing and the end plate 41 of the pump housing. This end plate encloses a chamber 45 in communication with the inlet 37 through the opening 39. The volute casing carries a plate 60 forming a chamber 46 with another 49 below the level of the shaft. The impeller 53 is carried bv a stub shaft 54 and is held against the shoulder 56 by the nut 57. The shaft 54 has a cylindrical socket 58 in its outer end in which the end of the motor shaft 32 closely fits, the two shafts being held bv the screw 59. The pump shaft passes through an opening in the plate 60 provided with packing rings 63, 64 clamped by the bolts 67. A gland 68 may be used in the packing and is connected by a pipe 69, Fig. 5, to the volute in order to form a water seal. The propeller is maintained in hydraulic balance as equal water pressure acts on both sides of the exposed hub portion. A vent pipe is connected to the casing at the top of the chamber 46. The end plate 41 can be removed to expose the impeller by simply withdrawing the bolts and the impeller itself can be removed after the nut 57 has been taken off.