baber/WOPTO huggingface dataset:
Patent GB-294611-A (GB)
Title: Process for the separation of gas mixtures
IPC: F25J3/02
Filed: 1928-07-26
Abstract: 294,611. Ges. fur Linde's Eismaschinen Akt.-Ges. July 27, 1927, [Convention date]. Separating gases by liquefaction.-A gas mixture is cooled until a constituent liquefies, and this constituent after further cooling is used to wash further components from the mixture, the heat of condensation being at the same time removed. Coke oven gas is cooled in an exchanger 1 to liquefy methane &c. which are. separated in a vessel 2. The liquid and gas are separately passed through a further exchanger 3 and brought into contact in a washing vessel 4 and cooled by a nitrogen boiling coil 5. The hydrogen from the top of the vessel flows through the exchangers 3, 1. The liquid is expanded through valve 6 and also passed through the exchangers. The washing liquid may cool the gases before entering the vessel 4 or may cool nitrogen, or the expanded liquid may replace the nitrogen in the coil 5. In a modification, the gas evaporating from the separator vessel may be purified in a reflux column, thus decreasing the amounts f nitrogen and carbon monoxide in the liquid. The freezing point of the liquid methane may be lowered, e.g. by addition of separated ethylene. Water gas may be washed with liquid carbon monoxide to produce a quantitative mixture of hydrogen and carbon monoxide.
Patent GB-935550-A (GB)
Title: Improvements in or relating to method of forming chuck key
IPC: B23F1/06
Filed: 1960-01-14
Abstract: 935,550. Gear-cutting. JACOBS MANUFACTURING CO. Jan. 14, 1960 [Feb. 24, 1959], No. 21647/61. Divided out of 935,547. Class 83 (3). A method of cutting the bevel on a chuck key 18 consists in traversing a milling-cutter 12 towards the small end of the pinion to cut a tooth and stopping the traverse while the cutter is still in engagement with the blank. The resulting tooth spaces have circular portions 28 at their ends. The cutter is traversed back along each cut groove, the blank is indexed, and the next groove cut. The diameter of the pilot portion 16 of the key is 85% of the root diameter of the pinion. Specifications 935,548 and 935,549 also are referred to.
Patent GB-289310-A (GB)
Title: Method of, and apparatus for, making springs
IPC: B23P15/06
Filed: 1927-08-17
Abstract: 289,310. Wuerfel, W. Aug, 17, 1927. Rings. - An annular spring having a series of alternately reversed helical portions each a fraction of the circumference, for use particularly as a piston-ring for an internal-combustion engine, is made by distorting a plane parallel-walled ring parallel to its axis so as to form the successive reversed helical portions, and heating the distorted ring to set it. A number of cast iron rings cut from a cylinder are placed on a disc 6 having a series of internal or removable projections 12 and recessed to receive the head 10 of a bolt 9. A disc 7 with projections 13 staggered with respect to the projections 12 is then keyed on the bolt and pressure applied by a nut 11 to shape the springs 8 into the form shown in Fig. 4. The springs in their clamps are then heated by contact with a heated gas or liquid or by immersing in a liquid bath. After cooling to normal temperature, the discs are removed and the springs split at 16.
Patent GB-436475-A (GB)
Title: Improvements in or relating to apparatus for weighing live animals
IPC: G01G17/08
Filed: 1934-07-25
Abstract: 436,475. Weighing-apparatus. ROBINSON, F., and ROBINSON, A., 363, Kirkstall Road, Leeds. July 25, 1934, No. 21714. [Class 143] In an apparatus for weighing live pigs or other animals a box or crate for containing the animal is suspended from a weighing device by means of a crate-supporting frame and short links at or near the corners. A fixed frame 4 carries a steelyard 1 or spring balance from which is suspended a crate-supporting frame 6 pivotally connected to the frame 4 by levers 7. The crate 10 for the animal is suspended from the levers 7 by short links 11 provided with knife-edged pivots. Doors are provided at each end of the crate, and handles 4y are fitted to the fixed frame for lifting the apparatus as a whole.
Patent GB-217751-A (GB)
Abstract: 217,751. Haddan, R., (Postage Meters & Machines Co.). June 1, 1923. Associated counters, trip and total and like; counters actuated by revolving mechanism; transmitting actuation to counters.-A printing and counting attachment for mail-marking machines comprises a rotatable printing member, a total counter, a resettable counter for indicating the number of impressions since the last setting and means for locking the printing member against rotation when the attachment is removed from the machine and for releasing the member when the attachment is placed in the machine. The attachment is adapted to replace that used in the machine of Specification 170,058 and comprises a printing roller 2 mounted in bearings 1<c>, 1<d> extending from a base 1 and a total counter 5 and resettable counter 6 driven simultaneously by worms 5<c>, 6<c> respectively from the spindle 2a of the roller 2 through a train of gears 7<a>, 7<b>, 8<a> and 2<c>. The counter 6 is adapted to be set back to zero in known manner by means of a special key inserted in its end 6<a>. A pawl 8<c> and ratchet 8<b> prevent reverse rotation of any of the parts. The end 47<a> of the spindle 2<a> is adapted to be coupled to the machine drive. The printing roller 2 is locked against rotation when the attachment is removed from the machine by means of a pivoted lever 66 encircling the shaft 2<a> and having a lug 66a pressed into a notch in a hub on the shaft by means of a spring 66<x> engaging the free end of the lever. The roller 2 is released when the attachment is placed in .the machine by means of a projection on the latter engaging a pin 69 to raise the lever 66, the locking and releasing mechanism being similar to that described in Specification 170,058. The counters 5 and 6 are enclosed in a casing 3 fixed by screws 3<a> to the base 1 the lower side and one end of which are closed in by sliding cover 1<e> permanently locked in position by means of an inaccessible pawl 1f engaging a notch in the plate, the screws 3a being incidentally rendered inaccessible. A block 1<i> fixed on the base serves as a stop for the machine part of the drive coupling and as an end stop for the plate 1<e>.
Patent GB-361314-A (GB)
Title: Improvements in and relating to electric illumination control systems
IPC: H05B37/02
Filed: 1930-07-18
Abstract: 361,314. Controlling consunming devices. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. -(Assignees of Bailey, A. E. ; 16, Cornelius Avenue, Schenectady, New York, U.S.A.) July 18, 1930, No. 21800. Convention date, July 25, 1929. [Class 38 (iv).] A modification of the illumination control system of Specification 360,939, in which the phase relationship between the input and output circuits of space discharge devices 18, 19 is varied to control the saturation of a reactance 39 in an illumination circuit comprises other means for varying the said phase relationship. The primary winding 54 of the grid transformer is supplied from the secondaries and phase shifting transformers 37, 38, which are selectively employed under the control of sceneshifting switches 65, 66. Grand master controllers 21, 22, with opposite phase rotation, are connected to the supply system 12 and supply colour masters 25, 26 and group masters 31, 32 in cascade connection. The time phase of the voltages supplied to succeeding controllers in the chain may be varied by hand-operated knobs 24 on the controllers and the setting of a switch 72 decides the relative direction of phase rotation of the voltage supplied to the grid transformer.
Patent GB-574075-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H03J3/24
Filed: 1943-12-30
Abstract: 574,075. Aerial coupling arrangements. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 30, 1943, No. 21874. Convention date, Dec. 30, 1942. [Class 40 (v)] In a wireless receiver utilizing permeability tuning and having a loop aerial, the tracking error caused by connection of the loop aerial to a tap on the input coil of the receiver is corrected by means of an additional winding on that coil. The correcting winding is connected between the low-potential end of the main winding and ground in such a manner that the mutual inductance between the two windings is negative in sign. The loop aerial 1 is connected to a tap on the input coil 2, the ferro-magnetic core K of which is ganged with other cores such as K<1> of the coil 6, tuning other stages of the receiver. Mistracking of the coil 2 due to its connection to the loop aerial 1 is corrected by the additional winding L<3>, which as shown is overwound on coil 2 in the opposite sense to that winding and connected with its lower end to ground and high-potential end to the low-potential end of the coil 2. Alternatively, the coil L<3> may be wound in the same sense as the coil 2 and the low-potential ends of both windings joined, the top of the coil L<3> then being grounded (Fig. 2, not shown).
Patent GB-154002-A (GB)
Title: Brush suspension for road sweeping machine
IPC: E01H1/02
Filed: 1919-09-06
Abstract: 154,002. Lacre Motor Car Co., and Drewry, J. S. Sept. 6, 1919. Sweeping - machines.- Consists in pivotally connecting the casing b of a rotary brush a. to the frame of a vehicle at a single point e at the rear, two other points c, d at the front being adjustably suspended by chains for free movement in a vertical direction. The inclination of the brush to the direction of travel is maintained by a vertically slotted link f engaging over a fixed pin f<1> on the chassis. As shown, the pivot c is in the form of a ball-andsocket joint, and the chains connected to the points c, d depend from levers g, h counterbalanced by weights i and connected to a lever j for lifting and adjusting the brush-frame.
Patent GB-1300034-A (GB)
Title: Improvements in or relating to piston rings
IPC: F16J9/26
Filed: 1971-04-19
Abstract: 1300034 Coated products RAMSEY CORP 19 April 1971 [11 May 1970] 22008/71 Heading B2E [Also in Division F2] A piston ring has a bearing face coated with a hard scuff-resisting material comprising a mixture of 10-25% by weight of titanium oxide and 75-90% by weight of aluminium oxide. The coating 26 may be alloyed with other metals or metalloids including tantalum, columbium, vanadium, chromium, hafnium, silicon, boron, cobalt and nickel. The coating may be applied by plasma jet to compression rings 20, 21 and oil rings 22, 23 made of ferrous metal with the interposition of a bond coating of nickel-aluminide. The grooved rings 21, Fig. 3 may be stacked on an arbor (35), Fig. 6 (not shown) and sprayed with a plasma jet spray gun (36). The rings may be finished by grinding. The coating has sufficient porosity to carry a lubricant.
Patent GB-751829-A (GB)
Title: Improvements in collapsible gin poles for oil well masts
IPC: E21B15/00
Filed: 1954-07-28
Abstract: 751,829. Raising derrick masts. MOORE CORPORATION, L. C. July 28, 1954 [Feb. 10, 1954], No. 22086/54. Class 78 (4). A roller 21, Fig. 1, on the rear side 15 of a gin pole runs in a track 12 on the front side of the gin pole so that both parts of the gin pole may be raised simultaneously about their pivots 16, 11 by a line 24 passing from a point 23 on the rear side 15 over a pulley 14 on the front side. In the arrangement illustrated each portion of the gin pole comprises spaced legs 15, 13 and the roller 21 and tracks 12 are duplicated on opposite sides. The line 24 comprises a sling connected at each end to one of the legs 15 and passing over pairs of pulleys 14 and over pulleys 26, 27 on the mast 1 to loop over the hook of the travelling block. The tracks 12 comprise outwardly facing channels to the flanges of which are welded plates 22, Fig. 3, which hold the rollers 21 captive. Curved plates 28 limit the movement of the rollers 21. Continued operation of the draw-works to draw the travelling block 6 towards the head of the mast after the gin pole has been fully erected raises the mast 1 about a hinge 2 until, in the erect position, the mast can be secured to the gin pole by splice pins engaging apertured members 31 on the mast and apertured lugs 30, Fig. 3, on the rear legs 1 of the gin pole. The rollers 21 pass their dead centre position before erection of the gin pole is complete so that the weight of the mast tends to maintain the gin pole in its erect position. The space between the legs of the gin pole is free of transverse struts so that the drilling line 7 can pass between the legs as the mast is erected.
Patent GB-249807-A (GB)
Title: Improved means for raising lowering or otherwise handling casings, rods or the like in wells
IPC: E21B19/06
Filed: 1925-09-04
Abstract: 249,807. Dunn Manufacturing Co., (Assignees of Smith, N. K.). March 24, 1295, [Convention date]. Rising barrel and cylindrical hinges.-Means for handling tubing, sucker rods &c. in wells comprises a body A and a gate B pivoted to the body at b. At the hinge, means are provided for lifting the gate at the beginning of the opening movement and for lowering it at the end of such movement; such means may comprise a roller 30, Fig. 1, on the gate co-operating with a cam 31 with inclined sides 31<c> on the body, or a rotating square member or a cut away member 37, Fig. 6, co-operating with a verticalsided cam 36, or engaging rotating square members carried by the body and gate respectively, or the hinge pin may be fixed to the gate and provided with a helical groove engaging a ball carried by the body.
Patent GB-1276151-A (GB)
Title: Semipermeable membranes
Inventor: ROWLEY MARTIN EUGENE
IPC: B01D71/10
Filed: 1969-05-01
Abstract: 1276151 Cellulosic membrane EASTMAN KODAK CO 1 May 1969 [3 May 1968] 22249/ 69 Heading B1X [Also in Divisions B5 and C3] To produce a semi-permeable reverse osmosis membrane useful in desalinating water, a water-wet cellulosic semi-permeable membrane, e,g. of cellulose acetate, is dried by first contacting it with a water-miscible organic solvent (A) which is liquid in the range 5- 40‹C and is able to form a clear solution with at least 5% by wt of water, until at least 80%, preferably 90%, of the water is replaced by the solvent and then with a non-polar organic solvent (B) also liquid in the range 5-40‹C and which is able to form a clear solution with at least 5% of (A) until at least 70% of (A) is replaced by (B) which is then removed by evaporation and/or mechanical means. Bath (A) and (B) must be non-solvents for the membrane. Specified solvents are for (A), C 1 _ 4  alkanols and for (B) benzene, toluene, petrol ether, xylene, naphtha, diethyl ether, hexane and cyclohexane. The membrane may also be impregnated with a polyol (e.g. 5-70%) applied as a solution (e.g. 5-25%) in solvent (A). Specified are various glycols and glycerine. The wet membrane may be derived by casting a cellulosic solution followed by quenching in cold water. The wet film may be "tempered" in hot water before drying. Excess water and solvent (A) may be removed mechanically before contacting with solvent (B).
Patent GB-517403-A (GB)
Title: Mechanism for applying fastening devices to envelopes and the like
IPC: B31B1/90
Filed: 1938-07-26
Abstract: 517,403. Making envelopes &c. THIEMANN, W. H. A. (Smithe Machine Co., Inc., F. L.). July 26, 1938, No. 22261. [Class 94 (ii)] In a mechanism for applying fastening devices to envelopes &c. advanced in a straight path, means are provided for holding the envelopes in arrested position, for opening them and for inserting an anvil therein in the direction of advancement of the envelopes. Envelopes with closure flaps open, stacked at S, are fed by a cam - operated suction nozzle N which first bends outwardly the lower edge only of each envelope, which is then gripped by cam-operated grippers G carried by a pair of rotors R<1> and removed from the stack and forwarded to the bight T between a pair of belts B' and the rotors R<1>. A guide G<1> with top rollers &c. ensure the feed of the envelopes towards a pair of camoperated stops 54 which arrest each envelope. A reinforcing patch P' is now applied to the envelope flap 10, and perforated at 9, whilst a fastener element F<1> is clinched to the envelope body by the following apparatus. Pre-gummed strip material S", from a roll W, is fed by a pawl and ratchet-operated feed pair 131, 132 through a moistener 163, the leading portion being severed by cam-operated shears to the positioned on a pair of spring-biassed legs between which a plunger 128 forces it and presses it on to the envelope flap 10. A further plunger 130, contained within the plunger 128, is now operated by a cam and lever system to punch the hole 9 through both patch P<1> and flap 10. The thrust at this position is taken by an anvil B<4>. The fasteners F<1> are fed from a hopper down an oscillating chute C, being positioned for clinching by pins 51 on a plunger A. A cam- and spring-operated reciprocating anvil V now enters the envelope mouth, which has been opened for this purpose by a vertically reciprocating cam-operated finger 82. The plunger A now descends to clinch the fastener F' into position, the thrust being taken by an anvil VX, positioned below the belts B<1>. Should an envelope fail to be fed for operation upon, both the strip-feeding device 131, 132 and the fastener-feeding device C are arrested by the action of a feeler-operated catch device. The envelopes, which were prevented from jumping at the stops 54 by adjustable gravity-operated rollers 71, with the patches P<1> and fasteners F' attached, are collected at the right-hand side of the machine, as shown.
Patent GB-180253-A (GB)
Title: Improvements in and relating to cigarette extinguishing ash trays
IPC: A24F19/14
Filed: 1921-08-22
Abstract: 180,253. Hipple, W. H. J. Aug. 22, 1921. No Patent granted (Sealing fee not paid). Ash-trays. - An annulus 4, preferably of metal, is formed with tapered sockets 8 to receive and extinguish cigarettes, and is inserted in a tray 3 which may be formed with a ledge 6 to support the annulus above the bottom of the tray, which is inserted in an outer body 1 of wood, &c. Metal cigar rests and a clip for a match-box may be inserted in holes in the body 1. Reference has been directed by the Comptroller to Specification 182,119.
Patent GB-1218671-A (GB)
Title: Paper and cardboard articles
IPC: B31B50/59
Filed: 1968-05-10
Abstract: 1,218,671. Laminated bowl. SIEMCO SOC. INDUSTRIELLE D'EMBALLAGE ET DE CONDITIONNEMENT S.A. 10 May, 1968 [12 May, 1967], No. 22343/68. Heading B5N. [Also in Division B6] In a method of making a bowl-shaped paper or cardboard article including areas of different curvature, a sheet of double-faced corrugated paper or cardboard consisting of an intermediate sheet of corrugated paper or cardboard having adhering to the peaks of its corrugations on each face a respective sheet of paper which is capable of substantial extension in mutually perpendicular planar directions, is shaped to form the article by subjecting it to a drawing operation in which the double-faced paper or cardboard sheet is crushed to an extent dependent on its final curvature, those parts which are not curved or are curved to a lesser extent being crushed to a lesser extent. The intermediate sheet may be normal or extensible paper. In examples the outer sheets are of micro-creped extensible kraft paper and the intermediate sheet of ordinary kraft paper, or the outer sheets are of creped kraft paper of different weights and the intermediate sheet is micro-creped kraft paper. As described a tray is formed by drawing the double-faced sheet between a die 10 and a two-part stamp 11, 11a. The board is first laid on the die 10. The stamp part 11 is applied to compress the flat parts of the tray slightly and hold the board in position. The stamp part 11a is applied to form the more highly deformed parts of the tray. The distance between the die 10 and stamp 11, 11a varies depending on the amount of deformation to be produced in a particular zone, the die and stamp being closest together in the zones of highest deformation.
Patent GB-442090-A (GB)
Title: Method of and means for sintering or roasting ores and the like
IPC: F27B21/06
Filed: 1934-07-31
Abstract: 442,090. Treating ores. TORULF, H. G., (trading as ALLMANNA INGENIORSBYRAN H. G. TORULF), 11, Blasieholmstorg, Stockholm. July 31, 1934, No. 22350. Convention date, Aug. 3, 1933. [Class 82 (i)] In ore-sintering apparatus of the pan type, the pans are fed over separate independent suction boxes and a travelling band or the like having a series of openings corresponding to the pans is moved synchronously with the pans between the pans and the suction boxes. In the plant shown, the pans 9 are moved over suction boxes 23 and a band 27 having openings 30 registering with sockets 31 on the pans moves at the same rate as the pans, packing being provided to maintain the tightness of the suction boxes. The discharge end of the plant may be provided with tipping apparatus 35 and with an elevator 41 for moving the emptied pan to a track 42 by which it passes to an elevator 43 and charging apparatus 32, the filled pan being then placed on the track in the correct position over an opening 30 and its contents ignited.
Patent GB-1504170-A (GB)
Title: Recirculating-ball mechanisms
IPC: F16C29/06
Filed: 1975-05-22
Abstract: 1504170 Bearings SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 22 May 1975 [1 June 1974] 22372/75 Heading F2A A recirculating-ball mechanism (Figs. 1, 3) comprises a sleeve 1 having a plurality of circumferentially spaced apertures 2 separated by webs 3 which provide load bearing paths for the balls, and insert elements 4 which are secured one in each aperture to provide return channels for the balls. The balls are constrained in their load bearing paths 15 by a cage 6. The elements 4 are of resilient plastics, and snap into place, projections 12 engaging the bore 5 of the sleeve. In a further embodiment (Figs. 7, 8), the insert elements 17 provide the reversing paths 21 as well as the return channels 20; adjacent edges of the elements guide the balls in the load bearing paths, and the cage is dispensed with. The outer surfaces of the webs 3 may be convex in the axial direction. The sleeve is of steel, and is provided with axial slits 16 to enhance its resilience.
Patent GB-401831-A (GB)
Title: Improvements relating to mattress suspension frames
IPC: A47C20/04
Filed: 1932-08-11
Abstract: 401,831. Bedsteads. WEBSTER, L., 42, Pretoria Road, Leytonstone, London. Aug. 11, 1932, No. 22479. [Classes 52 (ii) and 52 (iv).] A bedstead constructed with a detachably connected framework has vertically adjustable corner brackets which receive transverse bars 9 between which a mattress link work is suspended. The brackets have screwed stems 8 housed in columnar legs at both ends, or in legs at one end and wall brackets at the other. The mattress may have a cross bar 11 secured intermediate its ends so that the surface can be deflected giving an angular adjustment. Auxiliary supporting springs 14 may be provided and are fitted on a cross bar 16 which can rest across the side bars 12 which latter have forked ends for easy disengagement from the end columns.