baber/WOPTO huggingface dataset:
Patent GB-1185754-A (GB)
Title: Multistage, Liquid-Ring Rotary Compressor
Inventor: ABBIONETA ROBERTO
IPC: F04C19/00
Filed: 1968-03-01
Abstract: 1,185,754. Liquid-ring compressors. R. GABBIONETA. March 1, 1968 [March 16, 1967], No.10224/68. Heading F1C. A multi-stage liquid-ring compression includes a casing containing at least a first and a second compartment, a rotor having a set of vanes in each compartment, a distributer fixed to the casing and inserted coaxially within the rotor, and ducts formed in the distributer for feeding gas to the first compartment, conveying it from the first to the second compartment and delivering it from the second compartment, the partition between the compartments consisting, at least in part, of a rotor wall interposed between and rotating with the two sets of vanes, and the drive shaft being fixed to only one end of the rotor. The two-stage liquidring compressor shown in Figs. 1 and 4 comprises a rotor having first-stage vanes 7 and second-stage vanes 9, operating within double-lobe compartments 10 and 11 respectively. Gas passes from an inlet duct 22 via channels 17, 18 in a distributer 15 to the inlet ports 25, 26 of the first stage, and is transferred to the second stage via ports 27, 28, channels 19, 20 and ports 29, (30) to the second stage. The compressed gas is discharged via ports 24 to an outlet duct 23. As shown, the cooperating surfaces of the rotor and the distributer 15 may be conical, adjustment of the clearance between them being effected by adjusting the rotor axially with respect to the driving shaft 4. The compressor casing 1 is clamped between a support 2 and an end cover 13 by means of bolts 14. The distributer 15 is fixed to the end cover 13 by screws 36. Liquid is supplied to the liquid rings via passages 21, 16 and holes 31, excess liquid being discharged with the gas through the outlet duct 23. In other embodiments, Figs. 5 and 6 (not shown), additional first and second stages operating in parallel with the others and showing the same inlet and outlet ducts (22, 23) are provided below the cover (13), the additional rotor being mounted on an extension of the shaft (4). The co-operating surfaces of each rotor and distributer are cylindrical over the extent of each second stage. In the case of a vacuum pump, Fig. 6 (not shown), the vanes (9) may be of smaller outer diameter than the vanes (7), and the end shroud 34 shown in Fig. 1 can then be omitted.
Patent GB-190962-A (GB)
Title: Improvements in and relating to pistons
IPC: F16J1/00
Filed: 1922-04-10
Abstract: 190,962. Houseman, C. P. April 10, 1922. Pistons; equalizing wear; packing.-A piston 1 for internal-combustion engines &c. is adjusted in diameter to take up wear by a split sleeve 9 supported on a conical seating 6 and adjusted by means of rings 8, which are furnished with holes to facilitate turning and to permit of the escape of surplus oil. The gudgeon is inserted through a hole in the sleeve, which is then turned to retain the gudgeon in position.
Patent GB-783804-A (GB)
Title: Improvements in halftone photographic processes and sensitive silver halide materials therefor
IPC: G03F5/00
Filed: 1955-04-07
Abstract: 783,804. Photographic half-tone reproduction method, and pre-screened silver halide material therefor. KODAK, Ltd. April 7, 1955 [April 9. 1954, April 9, 1954, April 9, 1954], No. 10273/55. Drawings to Specification. Class 98(2) A combination of exposures using the "L.I.D. effect", letters which may stand for either low intensity desensitization or latent image destruction, and an effect described in the Vol. 42, No. 6, June 1952 issue of the Journal of the Optical Society of America pages 402-408, usually one exposure through a screen and the other to an object or image, are made on an emulsion forming part of an emulsion-developer combination showing the L.I.D. effect when subjected to a crossed step sensitometer test described in the Specification, followed by development in such developer, are used in the reproduction method and for the prescreened material exposure is effected through the screen only, for subsequent image exposure, general purposes in this case requiring the use of the Kodak (registered Trade Mark) D.85 developer. The two exposures, which may be effected in either order, are, respectively of high intensity for less than .01 second and of long duration such as more than 1 second, and in some instances when the short exposure is the second one a uniform short exposure is given initially, i.e. before the long duration exposure. According to the procedure followed the final half-tone image may be a negative or a direct positive. A mixing for a gelatinosilver bromiodide emulsion which shows the L.I.D. effect well when developed with D.85 and the D.85 formula are given. Specification 699,659 is referred to.
Patent GB-541849-A (GB)
Title: Improvements in or relating to statistical records, means for reading records, and means for preparing records
Filed: 1940-06-12
Abstract: 541,849. Photographic statistical films. BRITISH TABULATING MACHINE CO., Ltd. (International Business Machines Corporation). June 12, 1940, No. 10278. [Classes 98 (i) and 98 (ii)] [Also in Group XL] Relates to photographic statistical film record cards wherein numerical data are indicated by the position of optical marks, and consists mainly in giving to some at least of the marks a distinct colour indicative of a class of data. The invention includes also photographic means for making these records, and statistical machines for reading and interpreting the records. The record film shown in Fig. 1 includes data marks 22 corresponding to numerals in column 23, and marks 21 corresponding to account number in column 23a. The types of items recorded in the account number are indicated by the colour of the marks, for example the items are divided into four types represented by red, blue, green, and black. Photographic production of records.-The apparatus for this purpose is of the kind described in Specification 429,950 with additions for producing the desired colours of the marks. The fixed white plate 224, Fig. 16, over which a camera is situated, has columns of ten holes 225 corresponding to the ten digits 0 to 9. Below each column, there is a white slide 228 with a single hole 229. The slide is attached to a carriage 230 slidable along a shaft 232 and connected by a link 237 to a key of an adding machine by which the slide is set to position its single hole below the hole of the fixed white plate corresponding to the desired digit. A rotatable drum 231 is mounted in the carriage 230 and splined to the shaft 232. All the shafts 232 have pinions 234 in mesh with a rack 235, Fig. 17a, which can be set to four positions determined by four notches 239 in the rack co-operating with a spring detent 238 and corresponding to the four quadrants of the drum 231. The periphery of these four quadrants are coloured respectively, red, blue, green, and black as indicated by Fig. 18 which determine the colour of the spot appearing at the selected hole. These coloured spots are photographed on a. colour film. Record reading and interpreting. The record film 20, Fig. 2, is fed against an opaque screen 26 with an aperture 25 between a lamp 27 and a lens 28 on one side and three photo-electric cells 29a, 29b, 29c associated with a three-way transparent rod member 30 on the other side. Filters 31, 32, 33 are interposed between the cells and the corresponding branches of the light conducting rod 30. By a suitable design of the circuits, operation is obtained only for the desired colour. The apparatus described and shown includes generally well known devices for feeding the film and for accumulating storing and printing the data. Specifications 215,842, 216,143, [both in Class 106 (i)], and 497,054, [Group XL], are referred to.
Patent GB-1000959-A (GB)
Title: Improvements in or relating to a.c. voltage calibrating apparatus
IPC: H01F29/02
Filed: 1964-03-11
Abstract: 1,000,959. Selective signalling. SANGAMO WESTON Ltd. March 11, 1964, No. 10315/64. Heading G4H. [Also in Divisions G1, G3 and H1] A voltage dividing arrangement of transformers is characterized in that a first transformer can be coupled selectively to one of a plurality of voltage inputs, and in that the first transformer carries an independent winding coupling it to a second transformer. As shown, calibrating apparatus comprises a voltage divider which can provide a plurality of discrete voltage levels at terminals 14, 16 from an A.C. source constituted by a transformer TR and which includes at least two transformers such as auto-transformers TR1, TR2, TR3 having groups of windings A, B and C. Each of the groups A and B consists of ten series-connected windings forming a decade; group C consists of a single winding and energizes the succeeding auto-transformer. The arrangement is such that desired voltages at terminals 14, 16 can be selected within a wide range by setting the switches 60 to 64 associated with the transformers TR-1, TR-2, TR-3 and the switch 54 associated with tappings on the secondary winding of the source transformer TR. The selected output voltage is maintained at a constant value by a feed-back circuit 80 to 85 which controls the output of an oscillator 70, supplying the source transformer TR1, in dependence upon an error signal obtained from the comparison of a reference voltage with a voltage which is proportional to the output voltage and which is derived from one winding, such as 66, of one auto-transformer. The windings in the groups A, B and C have substantially the same ratio of impedance to induced voltage and are interleaved on the core of the auto-transformer, being symmetrically wound about the centre of the core as shown in Fig. 2 to minimize leakage reactance and to achieve linearity of the voltage divisions.
Patent GB-485236-A (GB)
Title: Improvement in composite garment
IPC: A41D3/02
Filed: 1937-04-12
Abstract: 485,236. Garments. SIEGEL, J. April 12, 1937, Nos. 10328 and 10329. Convention dates, April 10, 1936 and June 6, 1936. [Class 141] A composite garment comprises an overcoat and a sleeved lining which can be worn separately as a raincoat, the overcoat being furnished with a loose facing or flap beneath which the edges of the lining are tucked, the two parts having complementary fastenings. Fig. 2 shows a section through the edge of the complete garment. The overcoat 20 has a flap 21 forming a pocket 23 in which the edge of the lining is accommodated. For this purpose the parts are provided with the complementary parts 25, 26 of a sliding fastening placed respectively on the inside of the flap 21 and on the inside of the lining some distance away from the edge which is folded back as shown and has a flap 30 which, when the lining is worn, covers the fastening 27. The collar 32, Fig. 4, of the lining fits under a flap and is secured by snap fastenings 35. To facilitate the arrangement of the lining in position the collar is formed as a split lapel 32, 33 as shown in Fig. 10.
Patent GB-1291951-A (GB)
Title: Mechanical checking arrangement for controlling the operation of a spinning unit for manufacturing yarn by a pneumo-mechanical method, particularly by means of an underpressure spinning chamber
IPC: D01H13/18
Filed: 1970-03-04
Abstract: 1291951 Stop motion for open end spinner ELITEX-ZAVODY TEXTILNIHO STROJIRENSTVI GENERAL NI REDITELSTVI 4 March 1970 [6 March 1969] 10332/70 Heading DID A device for controlling a roller 15 feeding fibrous material to an open end spinning chamber comprises a pivoted feeler 1 normally held against rotation by the yarn 3 coming from the outlet tube 4 of the spining chamber but moving on breakage of the yarn to interrupt the drive to roller 15. As shown roller 15 is normaly driven from a main shaft 7 through a gear 8 and a gear member 9 freely rotatable on a shaft 10 and urged by a spring 16 against a member 11 fixed to shaft 10. The engaging faces of members 9 and 11 have engaging teeth so that drive is transmitted to shaft 10, and then via gears 13, 14 to roller 15. Member 11 also has a ratchet surface so that when the yarn breaks the short end of feeler 1 engages the ratchet surface and prevents member 11 rotating, the toothed interengaging surfaces sliding over one another and roller 15 being held stationary. When the break is repaired and feeler 1 returned to the position shown in Fig 5 drive to roller 15 resumes. Instead of the short end of feeler 1 engaging the ratchet surface, movement of the short end may allow a spring biassed pawl to move into engagement with the ratchet surface. Instead of toothed interengaging surfaces one surface may have projections and the other recesses into which connecting elements such as balls, cylinders or cones are engaged to transmit the drive.
Patent GB-824942-A (GB)
Title: Improvements in apparatus for crimping yarns
IPC: D02G1/02
Filed: 1956-04-05
Abstract: 824,942. Crimping and tensioning yams; stopping and starting textile spinning &c. machines; twist tubes. SOC. D'ETUDES ET DE RECHERCHES DE MATERIEL TEXTILES SERMATEX. April 5, 1956 [April 8,1955(2)], No. 10431/56. Classes 120(2) and 120(3) [Also in Group XI]  Apparatus for crimping yarns by false-twisting comprises a heating device and a rotary spindle through which yarn is drawn and which twists the length of yarn upstream and untwists the downstream length therefrom. The spindle has an oblique exit channel leading to an axial extension provided with at least one retaining and guiding means for convoluting the yarn therearound and braking the yarn so that tension in the downstream length is independent of and is much greater than tension in the upstream length and the yarn is released along the line of the spindle axis. As shown, yarn 1 passes from a cop 2, through an eye 36, over a free pulley 37, then in a zig-zag path provided by hooks or eyes 8, 9, 10, 11, the angular disposition of which may be altered to adjust the tensioning effect thereof, through a heater 3 and a false-twisting spindle 4, around a compensating pulley 41 mounted on a spring- loaded and centi-ed lever 42 so that slight lateral movement of the pulley are in line with the spindle axis, and crimped yarn  is wound on a bobbin 5. Spindle 4 mounted in a frame 20 comprises a tubular member 19 having a coaxial passage terminating in a curved portion 21 leading the yarn 1 to an eccentric outlet aperture 22, thence around, and through holes 24 (Fig. 3) or notches 25 (Fig. 4) in, an extension 23 the tensioning effect of which is adjusted according to the number of holes or notches used Spindle 4 is driven by a belt 26 which may serve several twisting stations and/or impart opposite rotation to adjacent tubes, as at 19, enabling oppositely twisted yarns to be taken up on one bobbin. A brake is constituted by a spring-biased lever 27 carrying a shoe 28 which is engaged with and disengaged from a disc 29 by movement of a handle 31 acting through spring 32. Auxiliary yarn advancing elements (not shown) may be interposed between cop 2 and pulley 37 to equalize yarn tension in the zone thereof. The heater device, Figs. 6 and 7, comprises a tube 7 for passage of yarn therethrough surrounded by a metallic e.g. steel, heat-accumulating mass 106, insulation layer 111, and plates 112 112a within a casing formed by a cylinder 101 and plates 102, 103. Mass 106 has passages, as at 107, housing electrical heating elements, as at 108, connected to pins 109, 110 whereby the heater is connected to electrical supply: a tube 114 fixed in a blind hole 113 may house temperature-measuring means e.g. thermometer 115 or a thermocouple. Yarn having a double crimp configuration, i.e. helically coiled about a helically coiled axis, Fig. 5 (not shown) may be produced by overtwist, e.g. by subjecting 20 and 70 denier polyamide yarn to false-twist of 7,000 or 4,000 turns per metre.
Patent GB-590962-A (GB)
Title: An improved device for compensating tension in control cables
IPC: F16C1/22
Filed: 1945-04-25
Abstract: 590,962. Dashpots. GENERAL AIRCRAFT, Ltd., LEATHER, G. B., and PEKARSKY, L. April 25, 1945, No. 10436. [Class 108 (iii)] In a device for compensating changes in tension in aircraft control cables of the kind described in Specification 570,015 comprising a link interposed in a cable and capable of extending against spring loading and means damping its extension which can be put out of action automatically on release of tension, a valve 2 is provided which is normally open to permit fluid flow in either direction under more or less free extension or compression of the spring loading means 12 but is adapted to be moved automatically on to its seating 9 on the application of a suddenly applied operating load. The device as shown comprises a cylinder 1 and a piston valve 2 which is loosely mounted on, and has limited axial movement relative to a piston rod 3 against a spring 10, a surface 8 on the piston being adapted to engage a valve seating 9 on an extended portion of the rod 3 to prevent fluid flow from below to above the piston. Under a static load the spring 10 maintains the valve 8, 9 open so that the load is carried by the spring 12. When an operating load is applied to the piston rod 3, friction between the piston 2 and cylinder bore causes closing of the valve 8, 9 and the load is then sustained by the fluid beneath the piston. A compensating spring 16 and piston 15 allow for change in fluid volume due to expansion leakage &c. The piston rod may be calibrated to give a visual indication of the cable tension.
Patent GB-564338-A (GB)
Title: Improvements in or relating to the concentration of potassium compounds from crude minerals containing them
IPC: C01D3/08
Filed: 1943-06-28
Abstract: 564,338. Wet separating. MINERALS SEPARATION, Ltd. (Minerals Separation North American Corporation). June 28, 1943, No. 10466. [Class 82 (ii)] In the separation of sylvite from a pulp containing it by subjecting the latter to a concentrating process employing a collector selected from the group consisting of aliphatic amines containing a straight chain hydrocarbon group of at least 7 carbon atoms and their soluble salts formed by their combination with acids which are relatively devoid of surface active,properties, an auxiliary agent consisting of dextrin is distributed in the pulp, which is then subjected to a separating treatment to remove the desired sylvite. The separating treatment may be carried out in a frothflotation machine or an agglomeration tabling treatment and the pulp formed from sylvinite ore and a substantially aqueous solution of the soluble ore constituents, the ore being deslimed before the collector and the auxiliary agent are added. The dextrine may-be prepared from potato, corn, casaoa, tapioca, rice or wheat starch and examples of collectors used are n-octadecylamine or its acetate, or nheptylamine or its acetate, or laurylamine hydrochloride which may be used in conjunction with a frothing agent such as pine oil or petroleum oil. Specifications 186,143 and 258,648, [both in Class 82 (ii)], are referred to.
Patent GB-795139-A (GB)
Title: Improvements relating to apparatus for making concrete pipes
IPC: B28B21/24
Filed: 1956-04-05
Abstract: 795,139. Making concrete pipes. HOLSTON, H. G. April 5, 1956. No. 10471/56. Class 87(2). A rotary packer head for a machine for making concrete pipes comprises a vertical-axis troweling cylinder 1 with a top plate 5 having a driven vertical spindle 12 and carrying opposed vertical-axis troweling and compacting rollers 15 and mix distributer plates 21 projecting upwards between the rollers, with opposed loose-wall forming and thickness-control blades 20 projecting from the radial outer edges of the plates 21. The spindle 12 has a connection 14 for attachment to a rotary and vertically reciprocable drive shaft. The top plate 5 seats inside the troweling cylinder 1, near the top, on bevelled lugs 7 which project from the inside wall of the cylinder and is held by a clamping plate 8 beneath the lugs, tightened by nuts on studs which project downwards from the plate 5. For ease of assembly and dismantling the plate 8 has notches 11 at appropriate points round its circumference relative to the lugs 7. The rollers 15 rotate on spindles 16 which project upwards from the top plate 5, to which they are secured by nuts 17, the clamping plate 8 being cut away at 18 to give access to the nuts 17. The rollers are 180 degrees apart and midway between them are brackets 19, projecting from the spindle 12, to which the distributer plates 21 are bolted, the bolts 22 passing through slots in the brackets 19 for adjustment purposes. The control blades 20 have arcuate outer surfaces which are set to run in a circumferential path inside that of the outer faces of the rollers 15. Concrete is fed on the top of the plate 5 as the packer head is rotated and raised, and is distributed centrifugally horizontally outwards by the plates 21. The blades 20 initially shape the pipe in loose wall form and the rollers 15 compact the concrete which, as the packer head rises, is troweled by the cylinder 1. The blades 20 and plates 21 are higher than the rollers 15 to prevent excess concrete from spilling into the path of the rollers.
Patent GB-946549-A (GB)
Title: A process of granulation of a powder having insufficient fluidity for use in a subsequent powder-metallurgical process
IPC: H01H1/021
Filed: 1960-03-24
Abstract: Metal powders or mixtures of a metal and a metal compound or a metal and a metalloid are granulated to improve their flow properties by heating the powder to a temperature of 0.4 to 0.65 times the absolute melting temperature of the lowest melting component of the mixture followed by crushing the lightly sintered compact to form granules which have a lower density than the optimum pressed density necessary to attain the maximum sintered density. The initial powder mixture may be compacted to a packing degree between that of the loose powder and that of the optimum pressed density. Examples are given of the production of granulated mixtures of the following:  (a) 90% Ag/10% Ni the loose powder being heated to 450 DEG C. or pressed at 5 tons/sq.cm. and then heated at 350 DEG C. to form granules of 0.06 mm. -0.3 mm. (b) 70% W/25% Cu/5% Ni pressed and heated at 600 DEG C. (c) 95% W/5% Ni pressed and heated at 800 DEG C.
Patent GB-200228-A (GB)
Title: Improvements in superheaters for steam and other fluids
IPC: F22G1/16
Filed: 1922-04-12
Abstract: 200,228. Nesbit, D. M., and Pulsford, F. C. April 12, 1922. Field-tube superheaters.-A field-tube superheater comprises a number of headers each carrying a number of Field-tubes projecting into a heating chamber, which is so divided by baffles that each division contains a number of the tubes carried by each header. The tubes are slidably supported by their inner ends. A header is built up of a number of sections c each carrying a Field tube b and divided by a transverse partition. The sections are reversible end for end. The gases from the furnace l pass upwards through the heating chamber around a baffle i. A flue n leading directly to the chimney is fitted with a damper m. The tubes may increase in diameter upwardly from the inlet to the outlet. The ends of the inner tubes may be cut and bent outwardly to form arms supporting the tubes centrally in the outer tubes.