baber/WOPTO huggingface dataset:
Patent GB-664571-A (GB)
Title: An arrangement for cooling melting, open hearth or electrical furnaces, or firing apparatus or other apparatus
IPC: F27B3/24
Filed: 1949-10-17
Abstract: 664,571. Cooling svstems for furnaces or like apparatus. NORGREN, S. J. N. Oct. 17. 1949, No. 26570/49. Class 64(iii) Relates to the cooling of apparatus, e.g. (melting, open hearth or electrical furnaces or firing or other apparatus) in which 'a cooling medium absorbing heat from the apparatus to be cooled is pumped through a circulation system which includes one or more heat exchangers for using the absorbed heat and in which the circulation system is connected to a source of cooling medium not taking part in the circulation so that cooling medium under pressure may be supplied to the system through a conduit from said source. According to the invention, the said conduit is provided with a valve adapted to be operated by the pressure regulator or a temperature regulator adapted to open at a predetermined pressure or predetermined temperature respectively of the cooling medium in the circulation system, and said conduit being connected to the circulation system at a point located upstream of the apparatus to be cooled and a check valve being inserted in the circulation system upstream of the point of connection of said conduit. In the form shown, cooling medium is circulated by a pump 10 through a plurality of cooling vessels 2 in a furnace 1 to a collecting vessel 6 and through a heat consumer 11, a check valve 12 being provided in the return pipe from the heat consumer 11. A reservoir 8 maintains the system full of zooling medium and through the operation of a float controlled valve 7 is itself replenished from a separate source 17 of cooling medium when the liquid falls below a predetermined level. The source 17 forms part of a supplemental system 13. If the temperature of the cooling medium flowing through the closed system becomes too high, or should the pressure rise due to failure of the pump or through other causes, additional and relatively cool cooling medium from the source 17 is supplied, the amount being controlled through automatic regulators 14, 15 responsive respectively to the temperature and to the pressure of the cooling medium in the system. The surplus cooling medium then obtaining in the system is discharged through the overflow 9. In a modification the pipe between the check valve 12 and the vessels 2 may be provided with a heat exchanger in which, under control of the temperature regulator 14, the circulating cooling medium may be cooled by medium from the source 17. The heat absorbed by the cooling medium may be used, e.g. in the heat consumer 11, for the heating of buildings or for drying purposes, or as shown for supplying heat to a separate heating system 16.
Patent GB-1256313-A (GB)
Title: Improvements in or relating to the strengthening of structures formed from prefabricated reinforced concrete slabs
Inventor: SMITH ERIC WILLIAM
IPC: E04B1/26
Filed: 1969-05-27
Abstract: 1,256,313. Strengthening structures. GEORGE CLARK (SHEFFIELD) Ltd., E. C. P. RESINS Ltd. and ROCK SERVICES (MIDLANDS) Ltd. 26 May, 1970 [27 May, 1969], No. 26616/69. Heading E1S. Structures formed from prefabricated reinforced concrete slabs are reinforced at the joints by the insertion of metal rods into drilled co-axial holes in the slabs, and their securing in position using a self-hardening cement. The rods may be straight, U- (staple) shaped (as shown) or tied to other rods arranged in parallel, and may be of stainless steel. The cement is preferably provided in a cartridge containing epoxy or polyester resin mastic separated from a catalyst in such a way that insertion of the rod into the cartridge causes mixing of the ingredients. The surface of the metal rod may be deformed.
Patent GB-602045-A (GB)
Title: Improvements in or relating to a gripper mechanism
IPC: B41F21/05
Filed: 1945-10-12
Abstract: 602,045. Gripper mechanism. HARRISSEYBOLD CO. Oct. 12, 1945, No. 26670. Convention date, June 24, 1942. [Classes 100(i) and 100(ii)] Sheets are held to the impression cylinder 12 of a rotary offset printing-machine, or to other sheet-carriers by means of grippers 28 mounted on a shaft 23 which is operated by a pin-and-slot connection between the gripper crank-arm 25 and a lever arm 31 pivoted to the carrier and adapted to be oscillated by a roller 40 which engages a fixed cam 41, the lever 31 being acted upon by a compression spring 38 tending to move it clockwise about its pivot 33 to the position shown in Fig. 4 in which the grippers are closed. In this position the slot 27 extends in a line directed towards the shaft 23 of the grippers, and at an angle greater than 45 degrees to the line of centres of the pivot pin 30 and the lever pivot 33. The leverage through which the spring 38 acts varies as the cylinder 12 rotates and is at a maximum when the grippers are closed, thus compensating for diminution of spring power as the spring 38 expands. A stop 46 limits the closing motion of the gripper shaft 23. The cam 41 is shaped so as to permit the grippers to remain closed until they reach the position X when the grippers are opened slightly to permit transfer of the sheet to the grippers of a delivery mechanism and then before the sheet-receiving position is reached the grippers are tumbled over to open position and are received in a recess 22 in the cylinder 12. The slot 27 may be radial, or may be cam-shaped or one side of the cam slot may be dispensed with and the pin pressed by a spring into contact with the plain cam. The lever 31 is curved to clear the shaft 21.
Patent GB-1465145-A (GB)
Title: Longitudinally extensible drill boom assemblies
IPC: E21B15/04
Filed: 1974-06-17
Abstract: 1465145 Drill supports ATLAS COPCO AB 17 June 1974 [3 July 1973] 26704/74 Heading B4C [Also in Division B3] A longitudinally extensible boom assembly for positioning an elongated rock drilling apparatus 38-48 comprises a boom support 12, a boom 10 pivotally supported by pivot means 11 on the support, a support sleeve 32 on the outer end of the boom, a boom extension member 33 longitudinally slidable in the support sleeve and a head assembly 34 carried by the boom extension member for adjustably supporting the rock drilling apparatus which may be of the rotarypercussive type. A power cylinder 60 connected to the boom extension member actuably extends the assembly and the boom extension member is guided in the support sleeve 32 by guide means 62 extending axially along the member and attached thereto at at least one end thereof and co-operating with one or more guiding grooves 75 in the sleeve. Guide members 62 may be screwed into grooves 61 in member 33 by screws (63) the screws also securing cylinder 60 (Fig. 6, not shown). The members 62 may be located by shims 70, 71 Fig. 8, in grooves 75 and the sleeve 32 may be in the form of a journal bearing pillow block with part-cylindrical bearing shells 69 (Fig. 3) glued thereto. The guide members may be movably supported at their inner ends by a ring member 64, Fig. 5. In an alternative embodiment, Fig. 9, not shown, the guide members (76) may be in split lengths, e.g. three end-to-end in each groove.
Patent GB-337520-A (GB)
Title: Improvements in or relating to mandrel holders for vertical lead coating presses for cables
IPC: B21C25/06
Filed: 1929-09-03
Abstract: 337,520. Krupp Grusonwerk Akt.- Ges., F. Oct. 25, 1928, [Convention date]. Squirting. - The mandrel holder of a press for coating cables with lead has its face 18, which is engaged by the lead, defined by non-tortuous lines a extending from its front face 16 to a curve 17 which marks the rear edge of the feed channels, the side lines being less inclined to the axis than the upper and lower lines. If the lines are curved then the chords of the side lines are less inclined than the chords of the other lines.
Patent GB-396955-A (GB)
Title: Improvements in or relating to paper roll holders and cutters
IPC: B65H35/00
Filed: 1932-09-27
Abstract: 396,955. Holders for rolls of paper. SIDWELL, R. R., 139, Whitmore Road, Harrow, Middlesex. Sept. 27, 1932, No. 26837. [Class 18.] A holder for a roll J of paper is provided with a knife Q whose cutting edge is directed radially towards the axis of the roll and which is so arranged that the line of cutting is kept in a directly vertical plane above the axis of the roll. Gudgeon pins on the ends of the roll spindle rest in slots in flat pillars B and the knife can also slide in the slots and is provided with enlargements on its ends ; or the holder may comprise an inverted U-shaped rod or tube of square, &c. cross section, with countersunk feet to allow it to be screwed to a counter, the roll spindle resting in scoop-shaped projections on the vertical arms of the holder, and the ends of the knife formed with jaws which embrace the vertical arms but which allow the knife to slide up or down. The cutting edge may be toothed, and the knife may also be weighted. The frame may hold more than one roll of paper, each roll having its own knife.
Patent GB-796470-A (GB)
Title: Improvements in or relating to article-orienting mechanisms for conveyors
Inventor: CARTER SIDNEY THEODORE
IPC: B65G47/244
Filed: 1956-09-03
Abstract: 796,470. Endless-chain conveyers. MEYER MANUFACTURING CO., G. J. Sept. 3, 1956, No. 26853/56. Class 78 (1). Articles, such as bottles B<SP>1</SP>, B<SP>2</SP>, B<SP>3</SP>, Fig. 1, formed with a small integral boss S known as a " spotting projection," are turned as they pass from a conveyer 20 to a conveyer 32 over a deadplate 33 by engagement with belts 61, 75 so that they all face in the same direction. The conveyers 32, 20 preferably consist of a series of thin metal plates connected by a chain. A driving sprocket 42 and an idler sprocket 43 rotating about vertical axes are mounted at one side of the conveyers 20, 32 and have a belt 61 trained round them. The outer surface of this belt is smooth, but the inner surface has teeth 62 to engage the sprockets. A belt 75 having teeth 76 on its outer surface is trained around pulleys 66, 70 and a driving sprocket 64 on the other side of the conveyers. The sprocket 43 is carried by a stub shaft 44 mounted in the end of a bar 45 which is secured adjustably to the top of a swivel block 48. This block can turn about a stud 49 which extends through an elongated slot 49a, Fig. 8, in the framework. A coil spring 51 contained in a bore in the block forces a slidable plug 52 into contact with a stop 53. A spring 60, Fig. 1, urges the bar and block to turn counterclockwise about the stud 49. This movement is limited by a stop 55. The run P<SP>2</SP> of the belt 75 is maintained in a curve by a fixed guide 78. As a bottle moves to the right in Fig. 1, its contact with the lower part of the guide 78 causes it to rotate until the projection S enters a space between adjacent teeth 76 on the belt 75. Thereafter the two belts advance it over the bedplate on to the conveyer 32.
Patent GB-951363-A (GB)
Title: Improvements in or relating to drive devices for motor cycles and mopeds
IPC: B62M25/00
Filed: 1962-07-12
Abstract: 951,363. Friction clutches; change-speed gear. FICHTEL & SACHS A.G. July 12, 1962 [July 15, 1961], No. 26899/62. Headings F2C and F2D. In a primary gear drive for a motor-cycle or moped, having a multi-disc clutch 6 between an input shaft 4 of a change-speed gear 10 and a gear-wheel 3 driven by a meshing wheel 2 on an engine crank-shaft 1, the usual separate splined hub carrying the inner clutch plates is eliminated by carrying the plates directly on a splined hub of the gear-wheel 3 itself. The gearwheel 3 bears directly on the gear input shaft 4 which improves tooth mesh in comparison with existing arrangements where the wheel is mounted on a separate bearing axially spaced from the plane of the wheel. A shell 5 for the outer clutch discs is secured directly to the gear input shaft 4 and the clutch is actuated by a rod 7. The clutch 6 is arranged between the wheel 3 and the change-speed gear, thus providing sufficient axial space between the wheel 3 and final output shaft 14 to accommodate a sliding key selector-rod 12.
Patent GB-715057-A (GB)
Title: Improvements in or relating to polarimetric apparatus
IPC: G01J4/04
Filed: 1951-11-16
Abstract: 715,057. Polarimeters. KESTON, A. S. Nov. 16, 1951. [Aug. 6, 1951], No. 26907/51. Class 97(1) [Also in Group XL(b)] A polarimeter comprises polarizing means for producing consecutively or simultaneously two beams of plane polarized light the planes of polarization of which are inclined to the extinction plane of an analyser and on opposite sides respectively of said plane, the substance to be tested being placed in the beams before reaching the analyser, and photometric means provided for measuring the intensities of the two beams transmitted by the analyser. The effect of the substance to be tested is to rotate the plane of polarization of one beam away from the extinction plane of the analyser, and that of the other beam towards such extinction plane and the ratio of or difference between the intensities of the transmitted beams gives a measure of the amount of rotation produced by the said substance. In the form shown in Fig. 1 light from a source 11 is plane polarized by a Nicol prism 13. passes through a cell 15 containing the substance under test, through an analyser 14 crossed with the polarizer and reaches a photometer 20 such as a photo-electric cell. A member 16 bears polarizing elements 17 and 18 which respectively rotate the plane of polarization of the beam from the polarizer 13-through small angles in opposite directions, and may slide or rotate to bring one or other of these elements into the beam, the intensities of the resulting beams being measured by the photometer 20. Alternatively the elements 17, 18 may remain stationary, two beams being produced by the polarizer 13, or the elements may be replaced by an electrical arrangement for rotating the polarization plane. Alternatively, the elements 17 and 18 may be omitted the polarizer 13 replaced by two fixed or sliding polarizers which are slightly rotated relative to the plane of extinction of the analyser. In a further modification the polarizer may be fixed and two analysers, rotated relative to the extinction plane, may be slid successively into the beam therefrom. In the modification shown in Fig. 6 polarizers 103 and 104 slightly rotated in opposite directions from the extinction planes of analysers 105 and 106 are slidable, together with the analysers, across the beam from a source 101 passing through the specimen 108. the intensities of the two beams thus produced being measured by the photometer 110.
Patent GB-784019-A (GB)
Title: Asbestos fibre recovery from tailings
IPC: B03B9/00
Filed: 1955-09-20
Abstract: 784,019. Washing granular materials. JOHNSON'S CO., Ltd. Sept. 20, 1955 [Sept 28, 1954], No. 26917/55. Class 82(2). Asbestos fibre is recovered from tailings masses by breaking up the masses and dropping them into water thereby aerating the broken up masses, subjecting the latter in the water in the presence of the entrained air to hydraulic drag classification and collecting an overflow which contains the fibre. Preferably the brokenup masses are dropped through a screen with a stream of water (Fig. 6) which carries them to the classifier; also a second hydraulic classifier (Fig. 8) and a vanning table treatment ensue. Tailings from a dump 15 (Fig. 1 are broken up and scraped with entrainment of air, into a shoot 71 (Fig. 5, not shown) thence to a screen 73 in a feed box 77 where they mix with and are further treated and carried into feed shoot 83 by water from inlet 79 (Fig. 6). Shoot 83 leads to primary hydraulic drag classifiers 21, 22, 23 in parallel wherein the aerated fibres are separated from the gangue and overflow to secondary drag classifiers 31. 33. 35 having greater water pool area than the primary classifiers to allow of settling of the finer sands &c. and fitted with compressed air supply inlets 120 for assisting the fibre flotation. Overflow passes to a thickener 40. to shaking tables 51. 53. 55. a further thickener 61 and finally a filter 65 where the fibre is caked and dried &c. Waste, gangue &c. are discharged at 27, and water from the thickeners at 64. Specification 677.780 is referred to
Patent GB-1059287-A (GB)
Title: Method and apparatus for determining the density of bulk material
IPC: G01N23/12
Filed: 1964-06-30
Abstract: 1,059,287. Particulate material density measurement. ALLIS-CHALMERS MANUFACTURING CO. June 30, 1964 [July 1, 1963], No. 26982/64. Heading G1A. To measure the density of particulate material such as screened cement clinker the material is channelled to flow along an upward incline and a radiation gauge used to measure the density of the material at a given position within the depth of the channelled layer. The drawing shows material being shaken over the outlet bars 21 of a cooler used after mineral burning. Air flows up between the bars for cooling purposes and a plurality of screening elements derive from the main bulk a sample in trough 33 and shoot 34 having a largest to smallest particle size ratio of the order of 3 to 1. The shoot 34 feeds the sample material to covered channel 40 which has an upwardly inclined base 41 and thence to outlet channel 44. These channels are also shaken by the reciprocating mechanism to cause the material to flow up channel 40 and through channel 44 so long as fresh sample is fed in through shoot 34. This method of feed compensates for minor variations in sample flow and provides consistent consolidation of the material in the channel 40. A radio-active source, such as Caesium 137 emitting gamma radiation, radiates through a column of material 43 above the channel bottom on to ion cell detector 51 which gives an output representing the transmissivity of the sample and thus its density. The detector output may be gated so that an indication is only given at the time in the shaker cycle when the sample is stationary but this is not essential.
Patent GB-828164-A (GB)
Title: Improvements in and relating to presses
Inventor: GREGORY HARRY REX
IPC: B30B15/06
Filed: 1956-09-04
Abstract: 828,164. Compression-moulding of finelydivided materials. COAL INDUSTRY (PATENTS) Ltd. Sept. 3, 1957 [Sept. 4, 1956], No. 26995/56. Class 87(2). A multiple plunger assembly in a coal-briquetting press comprises an inner plunger 6 and outer annular plunger 5, in which part of the inner plunger fits, and a fluid-filled chamber 31 in which pressure is generated by the reaction, when compressed by the outer plunger 5, of the fine coal or other powder intended to form the briquette, the inner plunger 6 being movably arranged in a plunger guide body 2. Screwed to this body 2 is a ram attachment piece 3 which is connected to the main press ram 25 and which has formed within it a chamber 27. Secured to the outer plunger 5 is a cylinder 1 arranged for movement on the guide body 2 and there is an annular extension from the guide body 2 into the base of the cylinder 1, the top of the inner plunger 6 entering this extension with its head hard up against the guide body. The chamber 31 is formed between the outside of this extension and the inside of the cylinder 1. To the bottom of the plunger 6 an end piece 7 is attached and from its top a plunger 32 extends, on which is an ejection piston 8 movable in the chamber 27. When the ram 25 descends the outer plunger 5 and the inner plunger and end piece 7 are forced down into the coal dust, which may be in a mould, and the reaction forces up the plunger 5 and cylinder 1 and causes a rise of oil pressure in the chamber 31. At a preset limit a relief valve, not shown, opens and oil escapes through an outlet 30, the inner plunger then continuing the movement alone. The object of this two-stage compression is to cause the mass of particles under pressure to undergo angular shear strain. When the ram 25 ascends, oil pressure is applied through an inlet 26 to the chamber 27, so forcing down the piston 8 and ejecting the briquette. On the release of the pressure a spring 11 returns the piston 8 and oil re-enters the chamber 31 through an inlet 29. Specifications 807,433 and 809,677 are referred to.
Patent GB-332118-A (GB)
Title: Improvements in or connected with leaf springs
IPC: B60G17/02
Filed: 1929-09-06
Abstract: 332,118. Winter, E. Sept. 6, 1929. Laminated springs.-In vehicle suspensionsystems having means for varying the effective length of the springs in accordance with the load carried, a movable support embracing the spring is slidably mounted and is'operated by link work from a lever arranged near the driver. The quarter elliptic spring 1, Fig. 1, is connected to the vehicle frame by means of two brackets 3. A collar 8 embraces the spring leaves and is also secured to the outer ends of upper and lower stiff spring plates 7 which are slidable through the brackets 3 the plates being slotted as shown at 6 to allow this movement. The other ends of the plates 7 are operated by the driver through the link 9. Securing bolts 4 pass through the slots 6 and through holes in the leaves of the spring 1. When the vehicle is lightly loaded, the collar 8 and the plates 7 are in the retracted position shown, but when the load is increased, the plates and the collar are moved outwards along the spring thus increasing its stiffness.
Patent GB-856613-A (GB)
Title: Improvements in or relating to jacking arrangements for the repairing of damaged building structures
Inventor: PRYKE FORDHAM
IPC: E04G23/04
Filed: 1956-09-05
Abstract: 856,613. Underpinning buildings. PYNFORD Ltd. Sept. 5, 1957 [Sept. 5, 1956], No. 27172/56. Class 20(2) [Also in Group XXX] A jack for lifting a building for underpinning has a layer of finely divided material K, e.g. sand between the top J of the jack and the building. A pocket is cut in the wall to house the jack. The sand is contained by a band M of rubber or stiff material or the top of the jack may have bristles to prevent excessive flow of the sand during jacking. Specifications 599,317 and 856,612 are referred to.
Patent GB-1532599-A (GB)
Title: Drive system for rotary printing presses
IPC: B41F7/02
Filed: 1977-06-30
Abstract: 1532599 Driving printing presses HEIDELBERGER DRUCKMASCHINEN AG 30 June 1977 [21 Aug 1976] 27424/77 Heading B6C  A printing press having a plurality of printing units 1, 2, 3, 4, each unit having two coacting blanket cylinders 6, 7 each having a co-operating plate cylinder 8, 9 is driven by a drive system having two meshed spur gears 12, 13 for each unit meshed with spur gears of adjacent units, the plate cylinders 8, 9 being driven by a gear 10, 11 in mesh with the spur gears, the blanket cylinders being driven from the plate cylinders by gears 17 on the plate cylinders meshing with gears 18 on the blanket cylinders. The gears 18 may be mutually in mesh, or may be mutually out of mesh. If they are in mesh, one of the gears 17 may be adjustable to remove backlash and ensure the correct tooth flank driving. The gears 10, 11 may be axially movable to make and break the driving connection between the spur gears 12, 13 and the individual printing unit.
Patent GB-1149459-A (GB)
Title: Improvements in and relating to bicycle frames
Inventor: KOSUGI JIRO
IPC: B62K19/04
Filed: 1967-06-14
Abstract: 1,149,459. Bicycle frames. J. KOSUGI. 14 June, 1967, No. 27470/67. Heading B7E. A bicycle frame comprises a longitudinal member 1 pivoted at 14 to the seat tube 6, and steel wires 15, 16, 17 and 18 tensioned by turnbuckles 19, 20, 21, 22 and disconnectable at one or both ends. The member 1 comprises either two tubes 1a, or is die-cast as a single member from 3 to 14, and then duplex to 5. The bolt and nut at 14 is removable, for disassembly.