baber/WOPTO huggingface dataset:
Patent GB-360105-A (GB)
Title: Improvements in or relating to conveyors, particularly for use in underground workings
IPC: B65G23/00
Filed: 1930-09-03
Abstract: 360,105. Endless belt conveyers. BRITISH JEFFREY - DIAMOND, Ltd., Stennard Works, and TINSLEY, H., Cap Frehel, Castle Hill, Sandal, both in Wakefield, Yorkshire. Sept. 3, 1930, No. 26346. [Classes 78 (i) and 78 (iv).] In an endless band conveyer, particularly for use in underground workings, the driving means for the conveyer band includes a prime mover arranged inside the delivery end of the conveyer framework and one or more driving drums and idler rollers immediately following said driving drums, said idler rollers including a longitudinally displaceable roller for tensioning the endless conveyer, and the delivery end of the conveyer is constructed so that a truck, tub or other receptacle may be positioned below the point of delivery to receive the conveyed material. In one form, the overhanging delivery end of the conveyer band 1 is supported by a frame 6, 8 which is carried by the main framework 7, 9 of the conveyer. The band-driving mechanism consists of two comparatively large drums 10, 11 arranged in tandem fashion, which are rotated by an electric or other motor through gearing 12. Means, such as fixed rollers 13 and a roller 14 adjustable in guides 15 by means of cables 17 and pawl and ratchet mechanism 18, 19, are provided for tensioning the band 1. The feeding end of the conveyer is preferably near the floor, and inclined side plates 25 and a jockey roller 24 are provided. The band 1 is supported in its upper flight by supporting and troughing rollers 2, 3 respectively and during its lower flight it is totally enclosed and is supported by rollers 21. The casing is composed of detachable sections which are joined together by devices 29a and taper pins. In a modification, the band is tensioned by hanging weights.
Patent GB-299977-A (GB)
Title: Improvements in and relating to woollen condensers
IPC: D01G9/00
Filed: 1927-10-06
Abstract: 299,977. Whiteley, W., and Priestley, J. W. Oct. G, 1927. Carding - engines.- The tape rollers A, B and tapes C of a woollen condenser are kept free from fibres, grease, &c. by a device comprising a wooden bar G carrying a, strip H of felt and a flexible strip J carrying card teeth K. The bar extends the full length of the rollers and is strengthened by a metal strip L. It is removably carried by pins M engaging open slots in brackets R and is designed to rest by gravity on the roller A. The fibres &c. collect in the angular space S and the device can be removed for cleaning at intervals. The fibres &c. on the lower roller and tapes are usually transferred to the upper roller and tapes in normal working.
Patent GB-865479-A (GB)
Title: A process for the manufacture of unsaturated ketones
Filed: 1959-07-31
Abstract: Ketones structurally related to the ionones are prepared by reacting an alcohol of formula:  <FORM:0865479/IV (b)/1> where R1 is alkyl containing 1-5 carbon atoms or phenyl and R2 is methyl, or R1 and R2 together represent a tetramethylene or pentamethylene radical, and each R represents hydrogen or methyl, with a ketal of formula: <FORM:0865479/IV (b)/2> or enol ether of formula:  <FORM:0865479/IV (b)/3> where R3 is hydrogen or an alkyl or alkenyl radical having 1-6 carbon atoms, and R4 and R5 represent an alkyl radical of 1-6 carbon atoms, or R3 and R4 together represent a polymethylene bridge, in the presence of a catalytic amount of an acidic condensation agent and, if desired after isomerisation of the condensation product, cyclising by treatment with an acid.  The reactions involved are as follows:- <PICT:0865479/IV (b)/1> <PICT:0865479/IV (b)/2> Suitable acidic condensation agents are strong mineral acids, acid-reacting salts, strong organic acids, and Lewis acids. Solvents may be employed. Some isomerisation of IV to V may occur in this step, and may be effected or completed by heat or with acidic or basic agents.  These steps are preferably carried out in an inert atmosphere; antioxidants may be present.  The cyclising step may be carried out with syrupy phosphoric acid or boron trifluoride, giving products VI; or with concentrated sulphuric acid, giving products VII.  Examples prepare a -ionone, b -ionone, a -irone, b -irone, isomethyl-a -ionone, isodimethyl-b -irone, isomethyl-a -irone and isomethyl-b -irone. Certain products and intermediates are identified as semicarbazones. Lists suitable reactants are given.  Specification 865,478 is referred to.
Patent GB-362854-A (GB)
Title: Improvements in pressure lubricators
IPC: F16N3/12
Filed: 1930-09-04
Abstract: 362,854. Pressure lubricators. OLDEWURTEL, C., 31, G³tersloherstrasse, Bielefeld, Germany. Sept. 4, 1930, No. 26425. Convention date, Jan. 27. [Classes 102 (i) and 102 (ii).] In a lubricator of the type in which a high-pressure cylinder c slides on a piston d, which controls inlet ports c<1> and discharges through a central bore, not provided with a check valve, the cylinder is filled from the con. tainer a through an annular passage between the cylinder and an extensior b of the container in which it is secured. A spring e is providec between the end cap b<1> of the tube b and the nozzle of the piston d. The container a is provided with a free piston.
Patent GB-944471-A (GB)
Title: Improvements in or relating to a self-emptying truck
IPC: B60P1/32
Filed: 1959-08-01
Abstract: 944,471. Dump vehicles. L. B. LOANE. Sept. 1, 1960 [Aug. 1, 1959], No. 26473/59. Heading B7B. A dump trailer comprises a chassis 16 mounting wheel stub axles 20, a rear wall or door 25 pivoted at 37 and adapted to be held closed by catches 38, a T-shaped drawbar 30 provided with wheels 33 which may roll in longitudinal channels 17 of the chassis, an inclined floor 26 pivotally connected to brackets 35 provided on the drawbar cross-bar 31 and movable over a roller 29 forwardly and upwardly as the drawbar slides longitudinally, arms 36 projecting from the drawbar to support the door 25 in a closed position, and a catch 41, 42, see also Fig. 6 (not shown), operated by a pivoted handle 46 spring connected to a strut 47, which catch in the load transporting position prevents movement of the bar relative to the body. In operation the trailer is coupled to a tractor, and when it is desired to unload the trailer the handle 46 is moved to unlock the catch, and the tractor is driven forwards to cause the drawbar 30 and the connected floor 26 to move forwardly relative to the trailer body so that the load is dumped. At the same time the arms 36 are withdrawn from under the door 25 which overcomes the spring catches 38 and swings rearwardly. When the stops 34 depending from the drawbar cross member 31 engage with a beam 19 of the chassis 16 the trailer moves forwardly so that the door can move up and over the discharged load and swing back into the closed position. The drawbar may however be moved by a ram or winch instead of by the tractor.
Patent GB-884354-A (GB)
Title: Cooling arrangements for dynamo-electric machines
IPC: H02K3/24
Filed: 1960-07-29
Abstract: 884,354. Cooling dynamo-electric machines. SOC. GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES, ALSTHOM. July 29, 1960 [July 30, 1959], No. 26541/60. Class 35. In a cooling arrangement for dynamo-electric machine stator windings connections to metal cooling ducts are at one end of metal and at the other end at least partially are insulating, to prevent the formation of closed eddy current circuits. Stator bars 7, 9, 10 include mutually insulated high-resistance metal ducts 6 insulated from windings 5. Ducts 6 at one end are brazed to a metal manifold 11 which is connected by pipe 13 to coolant distributer 12, one of the latter being insulating, the other metal, and at the other end are connected by insulating pipes 15 to metal manifold 14 (which two may be jointly replaced by an insulating manifold), thence via pipes 18 to collector 16. In modifications, the collector and distributer are at the same end and are connected to the ducts via metal manifolds, whilst continuity is afforded at the other end by separate insulating tubes, or by omitting tubes 15 and connecting ducts jointly by one or two insulating manifolds 14 (Fig. 3, not shown).
Patent GB-753969-A (GB)
Title: Improvements in or relating to filter presses
IPC: B01D25/02
Filed: 1954-09-14
Abstract: 753,969. Filters. ATELIERS DE CONSTRUCTIONS MECANIQUES DE VEVEY SOC. ANON. Sept. 14, 1954 [Sept. 26, 1953], No. 26542/54. Class 46. In a filter press having a number of filter plates 6 with a common casing 19 surrounding them, there are provided means for moving the casing axially to expose the spaces between the filter plates and means to rapidly rotate the press so that the projection of the filter residues is effected by centrifugal force. Each filter plate has a central bore 6a, surface grooves leading to a continuous passage 13 at the periphery, and filter cloths 15. The plates 6 are held in spaced relationship by washers 7 distance pieces 8 and a flattened bolt 9 providing a channel from the passages 13 to a gutter 16 and outlet 41. The bolts 9 are secured to covers 5 and 4, the latter being fastened to a hollow shaft 1 carrying internally a pipe 31, externally a disc 25 and a pulley 3, and at the top a pressure medium distributer 33. The casing 19 is secured to a cylinder 27. A suitable pressure medium is supplied through a pipe 36 into the distributer 33 and thence through the pipe 31 into a chamber A below the disc 25. As a result the cylinder 27 descends until the casing 19 is pressed against a packing 20. Liquid to be filtered is then pumped through a pipe 18 into the filter press where it is forced through the filter cloths 15 and passes from passages 13 down to the outlet 41. When it is desired to clean the filter residue from the cloths, the supply of liquid to pipe 18 is interrupted and pressure medium is supplied through a pipe 37 into the interior of the shaft 1 and thence to chamber B above the disc 25. As a result the cylinder 27 rises together with the casing 19 to expose the spaces between the filter plates 6. The press may then be set in rotation by a connection to the pulley 3 so that the filter residues are projected from the filter press by centrifugal force. They fly against the conical casing 38, which is open at the bottom, and fall out downwards. In a modification the open gutter 16 is replaced by a closed passage connected to the outlet pipe. In this case cleaning liquid or compressed air may be supplied through the outlet pipe and be conducted away through the inlet pipe in order to clean the filter cloths, even during the rotation of the filter press.
Patent GB-260302-A (GB)
Title: Improvements in and relating to shaft packings
IPC: F16J15/44
Filed: 1926-10-25
Abstract: 260,302. British Thomson-Houston Co., Ltd., (Assignees of Emmet, W. Le R.). Oct. 24, 1925, [Convention date]. Stuffing-boxes, substitutes for.-In packing for turbine shafts and the like of the type in which non- rotating elements 6 are held in spaced relationship to surfaces 5 on the shaft, with or without intermeshing flanges, the elements 6 are frictionally held by springs of tungsten steel so as to be displaceable radially if contact takes place. A number of springs 10 secured to a ring 11 between two rings 6 may press the radial surfaces of the latter against the side surfaces of the latter housing. The rings 6 comprise feet 14 and stiffening rings 15, which may be integral with the feet or riveted to them. In the latter case the feet may be of cast iron and the rings 15 of steel. The packing rings 6 for the diaphragms 4 are held by springs 12 riveted to the diaphragms, clearances being provided to permit radial movement. When the packing rings are formed in halves, a single ring arranged in each housing is pressed against one side of the housing by a number of the shaped springs 24 secured to the ring.
Patent GB-172159-A (GB)
Title: Improvements in stops or stays for doors, windows and other hinged members
IPC: E05C17/38
Filed: 1920-09-17
Abstract: 172,159. Chambers, R. M. Sept. 17, 1920. Stays; stops.-A device serving as a spring stop and stay for doors or other hinged members comprises a slotted plate A secured to the door post B and a curved strip of spring steel C secured at one end to the door &c. D and formed at its free end with a roll c adapted to bed in the slot in the plate, the slotted end portion of the plate being bent away from the door-post as shown at a<1>.
Patent GB-1345044-A (GB)
Title: Expansion bolt
IPC: F16B13/12
Filed: 1971-04-19
Abstract: 1345044 Anchor bolts; sockets TUFLEX AG 19 April 1971 [21 April 1970] 26685/71 Heading F2H An expansion bolt comprises a sleeve 1 of synthetic plastics material having a longitudinally split expansible portion 1b including slots 5 which run parallel to a plane containing the sleeve axis and which enter the bore of the sleeve tangentially, tips 9 of the walls of the portion 1b projecting to define anti-twist fins to prevent rotation of the sleeve in a bore, a synthetic plastics wedge 2 working in the bore of the sleeve, and a screw 3 adapts to engage threads 4 in the sleeve bore, the threads tapering conically in a portion 7 of the sleeve. When the screw 3 is screwed into the sleeve 1, the wedge 2 is forced through the bore to expand the portion 1b. The screw causes expansion of the portion 7 before driving the wedge thus relieving undue tensile stresses in the expansible portion 1b. The sleeve 1 which may have external annular grooves 6 and wedge 2 are preferably formed of glass fibre reinforced polyamide.
Patent GB-1419716-A (GB)
Title: Milling machines
IPC: B23Q35/10
Filed: 1973-06-05
Abstract: 1419716 Copy milling HAYES ENGS (LEEDS) Ltd 19 March 1974 [5 June 1973] 26686/73 Headings B3K and B3B In a copy milling machine for forming a profiled edge surface on a radiused blank workpiece the template and workpiece are mounted on a support 6 and workholder 30 respectively, pivotable about parallel axes which are at right angles to the axes of the stylus and milling cutter which co-operate with the template and workpiece respectively. The template support and work holder are mounted on the machine work table and the stylus 60 through its central valve 2 effects control of the worktable movements in the normal co-ordinated directions in a horizontal plane. The simultaneous pivoting of the template support and work holder is effected by a fluid actuated double ended rack 48, 17, and 45. The operation of which is effected by a control valve 24 movably mounted on the template support which has a sensor 25 engageable with a cam 26 secured to the machine frame. In operation the template is contacted by the stylus 60 which effects control of the cutting tool on the workpiece blank as is known in the copy milling art, but the movement of the work table in the direction A causes the sensor 25 of the valve 24 to contact the cam 26 which causes actuation of the rack cylinder 48 which causes tiltling of the template support 6 and work holder 30 about thieir respective axes effecting the radius milling action to be effected. The template support 6, by way of rack and pinion 19, 18, also effects displacement of the sensor valve 24 with the pivoting of the template and work supports which takes up a neutral position with respect to the cam 26 to stop the flow of fluid to the cylinder 48. The size of the radius to which the parts are to be machined is catered for by the shape and inclination of the cam 26 and internal and external radii can be cut. The workpiece holder 30 is in the form of a rotary indexable table 32 which is pivotally mounted in a yoke type support 41, 42, 43 which is secured to the machine table. The template support 6 is in the form of a template carrier 15 pivotally mounted in cradle fashion in a yoke type frame 9 mounted on the machine table.
Patent GB-944683-A (GB)
Title: Hydraulic circuit for tractor mounted bucket loaders
Inventor: FREEDY ALLAN LESLEY
IPC: E02F3/34
Filed: 1962-07-12
Abstract: 944,683. Shovel machines. CATERPILLAR TRACTOR CO. July 12, 1962, No. 26814/62. Heading E1F. A surge tank 26 is associated with that part 21 of the hydraulic circuit of a bucket loader leading to those jack ends which are under pressure when jacks 14 have swung the bucketcarrying arms of the loader vertically upwards. A by-pass 33 is provided to a non-return valve 34 in that part of the circuit leading from the other ends of the jacks to a supply tank 19. The surge tank 26 and the by-pass 33 can be rendered operative in the hydraulic circuit as required by a manually operated valve 36.
Patent GB-988752-A (GB)
Title: Display devices made of corrugated cardboard
Inventor: JONSSON ERIK INGVAR
IPC: B65D73/00
Filed: 1963-07-06
Abstract: 988,752. Display device. UNIDO A.B. July 6, 1963, No. 26866/63. Heading A4H. [Also in Division G5] Display devices (Figs. 4, 9) are made of corrugated cardboard (Fig. 3) having transverse creases 5 and one or more metal or plastics wires 6 threaded along the channels, points 6a facilitating threading past the creases 5. The wires 6 may serve to maintain the folded cardboard in shape, as in the base or display support of Fig. 4, or a wire may penetrate the cardboard, the exposed end serving either to suspend the device itself or as a hook 7a (Fig. 9) to carry an article for display. Similarly a hook may be formed of the exposed wire in Fig. 3, and the wire may emerge from the cardboard at a crease (Fig. 6, not shown).
Patent GB-642094-A (GB)
Title: Improvements in or relating to radio navigational aid systems
IPC: G01S1/02
Filed: 1946-09-06
Abstract: 642,094. Radio navigation. PHILIPS LAMPS, Ltd. Sept. 6, 1946, No. 26870. Convention date, April 12, 1943. [Class 40 (vii)] In a radio beacon system for enabling a mobile receiver to determine its bearing relative to the beacon, the beacon transmits two harmonicallv-related modulation frequencies, the phase of each modulation frequency being directly proportional to the bearing, and means are provided at the receiver for comparing the phases of the two modulation frequencies to obtain a quantity indicative of the required bearing. At the beacon, Fig. 1 (not shown), a modulation frequency w is applied in quadrature to two balanced modulators, the outputs from which are applied to two crossed pairs of vertical aerials and a carrier frequency is also applied to a central aerial to produce a cardioid pattern which rotates at a frequency w. The modulation frequency w is also multiplied by a factor n and applied to the aerials through the pair of balanced modulators to produce another cardioid pattern rotating in the same or opposite direction at a frequency nw. At the receiver two oscillations sin (wt - #) and sin (nwt#) are obtained after demodulation, where # is the phase angle corresponding to the bearing and the sign of # in the second expression depends on the direction of rotation of the second rotating field. The value of # may be determined by multiplying the frequency of the sin (wt - #) oscillation by n and measuring the phase difference (n1)# of the two oscillations of frequency nw. Alternatively the two oscillations of frequency w and nw are applied to the X and Y plates of a cathode-ray tube to produce a Lissajous figure as shown in the Figure for the case of n = 8, and it is shown that the ordinate of the intersection of the Lissajous figure and the Y axis is directly proportional to sin (n1)#. In order to produce an indication independent of the amplitude of the two oscillations, a limiter or A.G.C. system may be provided.
Patent GB-278894-A (GB)
Title: Improvements in trimming machines for clay blocks
IPC: B28B11/08
Filed: 1926-10-27
Abstract: 278,894. Marks, E. C. R., (Mosaic Tile Co.). Oct. 27, 1926. Trimming moulded tiles. - A machine for trimming or bevelling the edges of clay tiles which may be combined and synchronized with the tilemoulding press has carborundum or like hard cutters supported on a trimming-bed and means such as reciprocating claws for engaging the end and side edges of the tiles to move them first endwise and then sidewise into engagement with the cutters. Fig. 1 is a plan and Fig. 2 a sectional side view of the trimming-machine combined with a tile-press 6, 11, the trimming-bed 2 being steam heated by boxes 3. After leaving the press 7, the rows of tiles T are engaged by claws F mounted on shafts 13 rocking on a reciprocating slide 15. A frame 22 reciprocated by a rod 23 from the cam 9 of the press actuates the frame 15 by rods 18 which first lower the claws and then slide the frame 15 to force the tiles along guides G into engagement with cutters C mounted in tool holders H<1>. Similar claws F<1> mounted on a second frame 25 reciprocating at right-angles to the first takes the tiles along a single guide G<1> the sides of which are furnished with cutters mounted in holders H. The tiles pass from the guides G<1> on to an endless band B<1> and beneath a brush carried by a bar 38. The chaindrive of the endless band receives an intermittent forward movement from a pawl moving with the frame 25. To provide for coarse and fine cuts the carborundum elements C of the cutting tools are mounted in pairs in the tool holders and are capable of vertical adjustment.
Patent GB-216785-A (GB)
Title: A new or improved stake for supporting wire netting
IPC: E04H17/10
Filed: 1923-10-27
Abstract: 216,785. Elwell, Ltd., J., and Hawley, O. H. Oct. 27, 1923. Fencing posts.-A post or stake for wire-netting fencing comprises a substantially U-shaped metal strip 1 provided with a spike 3 and with upwardly .and downwardly projecting hooks, 5 and 4 respectively, for engaging the selvage wires of the netting. The hooks are formed integrally with the post by partially severing tongues of metal therefrom and forcing them out of the plane of the channel 8. In a modification, Fig. 5, the upper hook 7 is formed by cutting slots 6 in the top of the post.
Patent GB-1310792-A (GB)
Title: Vortex separator
IPC: B04C3/00
Filed: 1971-04-19
Abstract: 1310792 Vortex separators PALL CORP 19 April 1971 [24 April 1970] 26905/71 Heading B2P A vortex separator for removing contaminant particles from an air stream comprises a tubular body 1 having whirl-producing helical vanes 6 adjacent an inlet 2, a clean air tubular outlet member 7 defining with the body 1 an annular chamber 8 for receiving separated contaminant particles and a baffle 10, Fig. 1, or 15, 16, Fig. 3, disposed at the entry to, or within the annular chamber 8 and effective to deflect the whirling air stream in a manner to inhibit the whirling movement of the particles in the annular chamber and thus prevent abrasion of the tubular body 1 in this region, without substantially interfering with the entry of particles into the chamber or with normal scavenge flow of the particles from the chamber, e.g. through an outlet 4. The baffle may be in the form of a flat ring which has one or more apertures therethrough and which may be disposed at an angle to the axis of the tubular body 1. The baffle 10 may alternatively be in the form of a split singlecoil helical ring, Fig. 1, the gap 11 between the split ends defining the aperture. This type of baffle is preferred when there is no scavenge exhaust and the separated particles are collected and retained in the annular chamber 8. In another form, Fig. 3, baffles in the form of radial fins 15, 16 extending partially across the chamber and longitudinally thereof are provided. Alternatively, radial fins extend completely across the annular chamber to form segmented sub-chambers. The baffle(s) may be secured by welding, brazing, bonding or press-fitting or, in the case of a ring, may be formed as an integral flange on the inlet end of the member 7 and may be of similar material as the vortex separator. The latter may be made of metal or abrasion-resistant plastics, examples of which are given.