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41. 发明专利

GB484746A Improvements in or relating to meshing screw-engines 未知
公开(公告)号：GB484746A
公开(公告)日：1938-05-10
申请号：GB453237
申请日：1937-02-15
申请人： BRITISH JEFFREY DIAMOND LTD , ARTHUR YORKE SAVILLE
IPC分类号： F01C1/16
摘要： 484,746. Meshing-screw engines. BRITISH JEFFREY-DIAMOND, Ltd., and SAVILLE, A. YORKE-. Feb. 15, 1937, No. 4532. [Class 110 (ii)] The exhaust ports 11 in the casing of a meshing-screw engine are shaped so that the gas under pressure is released slowly at first, then with greater rapidity. Compressed driving fluid enters through ports 10 to drive the rotors which, preferably, have two sets of helical blades arranged so that a series of apices will be formed around the peripheries of the rotors at the mid points. Oil drains may be arranged at the bottom of the casings.

42. 发明专利

GB426784A Improvements in or relating to chains 未知
公开(公告)号：GB426784A
公开(公告)日：1935-04-04
申请号：GB924135
申请日：1933-09-04
申请人： BRITISH JEFFREY DIAMOND LTD , ROBERT KILBOURNE JEFFREY
IPC分类号： E21C25/36
摘要： 426,784. Driving - chains. BRITISH JEFFREY-DIAMOND, Ltd., Stennard Works, Wakefield, Yorkshire, and JEFFREY, R. K., 8. Sessions Village, Bexley, Columbus, Ohio, U.S.A. Sept. 4, 1933, No. 9241/35. Divided out of 426,711. [Class 24] In chains for endless-chain coal cutters &c., the pintle is a hollow sleeve 12 disposed in apertures 9, 10 of the links 6, 8 and held by a cleat 15 the ends of which engage slots in the outer links. Preferably the cleat is in the form of a bar the ends of which are bent at right-angles and engage notches in the ends of the sleeve 12 to prevent rotation thereof relatively to the outer links. In the construction of chain described, the outer links comprise a pair of side members connected by a bridging portion and embracing the inner links.

43. 发明专利

GB426711A Improvements in or relating to chains 未知
公开(公告)号：GB426711A
公开(公告)日：1935-04-04
申请号：GB2451133
申请日：1933-09-04
申请人： BRITISH JEFFREY DIAMOND LTD , ROBERT KILBOURNE JEFFREY
IPC分类号： E21C25/36
摘要： 426,711. Coal - cutting machines. BRITISH JEFFREY - DIAMOND, Ltd., Stennard Works, Wakefield, Yorkshire, and JEFFREY, R. K., 8, Sessions Village, Bexley, Columbus, Ohio, U.S.A. Sept. 4, 1933, No. 24511. [Class 68 (i)] [See also Group XXV] Chains of the stiff-back type for coal-cutting machines comprise inner and outer links 22, 23, Fig. 1, the outer links having parts 31 extending in both directions beyond the pivotal link connections and adapted to engage the upper edges 30 of the inner links. The parts 31 of successive outer links may also mutually abut and they are preferably formed as extensions of the web of U-shaped or straddle type links. Laterally extending ribs or projections may be formed on the links for engaging guides in the jibs in which the chain is intended to work, and clamps 26 may be provided on either the inner or outer links for any suitable type of cutter. Various forms of joint-pin connections are described. As shown in Fig. 5, the pin 39 has pairs of lugs 40 at each end adapted to pass through similarly shaped apertures in the links when brought into register. In the normal working positions of the links, the apertures are out of register and the pins locked to the outer links by the lugs. Another form of joint pin is shown in Fig. 8 comprising two cylindrical parts 41, 43 which are eccentrically disposed to each other. Rotation of the pin relatively to the outer links is prevented by the cylindrical part 43. In Fig. 9 the pins have flattened ends 51 and the outer links have key-hole apertures. The parts are locked in working position by headed pins 53 carried by the inner links. As shown in Fig. 12, cylindrical joint pins 57 are employed and are locked to the outer links by transverse pins passing through the joint-pins and having heads engaging countersunk recesses in the sides of the links. In order to provide a sufficient bearing when the chain is rounding the ends of the jib, the bearing edges of the links may be concaved.

44. 发明专利

GB425100A Improvements in and connected with coal cutting machines 未知
公开(公告)号：GB425100A
公开(公告)日：1935-02-28
申请号：GB165135
申请日：1933-07-28
申请人： ROBERT KILBOURNE JEFFREY , BRITISH JEFFREY DIAMOND LTD
IPC分类号： E21C31/10
摘要： 425,100. Hydraulic transmission of power. JEFFREY, R. K., 8, Sessions Village, Bexley, Ohio, U.S.A., and BRITISH JEFFREYDIAMOND, Ltd., Stennard Works, Wakefield, Yorkshire. July 28, 1933, No. 1651/35. Divided out of 427,881. [Class 69 (ii)] [See also Group XXI] Oppositely acting motors 60, controlling the turntable of a mining machine through racks or chains, are supplied by a reversible, variable discharge pump 444 with flow controlled by check valves 453, 454, 455 and 457 and provided with high and low pressure relief valves 469, 459 . The pump is connected through supply pipe S and exhaust pipes E, E , to a valve 502, normally held in central closed position by a spring, and connected through pipes 503, 504 to a rotary valve 494. This valve has branched ports 505, 506, dividing the supply between the motors 60 and combining the exhaust therefrom, and may be turned so that diametrical ports 534, 535, 536, connect opposite pipes, the whole supply then going to one motor 60 for high speed operation. The motors may be short-circuited by valve 532.

45. 发明专利

GB423449A Improvements in or relating to belt conveyors 未知
公开(公告)号：GB423449A
公开(公告)日：1935-02-01
申请号：GB2198433
申请日：1933-08-04
申请人： BRITISH JEFFREY DIAMOND LTD , HORACE TINSLEY
IPC分类号： B65G43/00
摘要： 423,449. Endless - belt conveyers. BRITISH JEFFREY - DIAMOND, Ltd., Stennard Works, Wakefield, and TINSLEY, H., Cap Frehel, Castle Hill, Sandal, both in Yorkshire. Aug. 4, 1933, No. 21984. [Class 78 (i)] In endless-belt conveyers the lower flight is protected from material dropping off the upper flight by cover plates 30, which are easily detachable and can be taken off and replaced without removing any other part of the conveyer. The plates 30 lie loosely on transverse members 26 extending between the uprights 19 of chairs which support the belt at intervals. The members 26 may be the lower parts of angle plates 20, 21 welded to the uprights 19 and inclined in opposite directions and welded together where they abut and cross at the middle, or of inverted T-section cross-members formed integrally or built-up by welding. In each case slotted lugs 23 are welded to the cross members to receive flats on the spindles of three rollers 15, 16, 17, disposed to support the upper flight in trough formation. The spindles of the rollers 15, 16 lie in slots in the uprights 19 also, and all have one end spindle longer than the other to facilitate mounting and to secure interchangeability. The lower flight may ride on horizontal rollers 18 journalled in the uprights 19. The cover plates 30 are inclined downward in an outward direction and have depending edges 31 at the inner sides, which do not meet and flanges 33, 34 at the outer sides to protect the sides of the lower flight and maintain it in position. Slots 32 in the uprights 19 enable the plates to be removed and interchanged. Angle bars &c. 35 connect the chairs together. The driving head of the conveyer may have an over-hanging jib, and the tail end may be telescopically arranged relatively to the last section of the conveyer and may have a housing overhanging that section and provided with downward extending flanges forming a trough. A scraper may be provided over the lower flight at the tail end, and a movable grid permits of access to the tail drums. Specification 360,105 is referred to.

46. 发明专利

GB367065A Improvements in or relating to the control and protection of electrical apparatus 未知
公开(公告)号：GB367065A
公开(公告)日：1932-02-18
申请号：GB3603130
申请日：1930-11-29
申请人： BRITISH JEFFREY DIAMOND LTD , HORACE TINSLEY
IPC分类号： H02H11/00
摘要： 367,065. Protective cut-out arrangements. BRITISH JEFFREY-DIAMOND, Ltd., Stennard Works, Wakefield, Yorkshire, and TINSLEY, H., 289, Lidgett Lane, Moortown, Leeds. Nov. 29, 1930, No. 36031. [Class 38 (v).]. In the distant control combined with the protection of portable earthed electrical apparatus (such as coal-cutters) by means of a low voltage circuit derived from the mains and having an earth return through the earthed apparatus as in Specification 248,805, [Class 38 (v), Electric switches &c.], a low voltage direct current is used derived from a full-wave non-rotary rectifier 1 connected to the A.C. mains through a transformer 2. The D.C. side of the rectifier is connected on the one hand to the earthed frame 10 of the main gateend switch 4 and on the other, through a closing and maintaining coil 5 of the switch 4, through a pilot trailing cable 6, through a limiting resistance 7 and the starting switch 8 on the motor to the earthed frame of the motor. By closing the switch 8 the energized solenoid 5 raises the main switch to the closed position ; if the earthing circuit fails, so that the apparatus is no longer earthed, the solenoid 5 is deenergized and the main switch assumes the off position. On overload in the main circuit, the overload coils open the switch 14 in the maintaining circuit, or the core-balancing arrangement 11 breaks the circuit of the primary of the transformer 2 with the same result. If the low voltage trailing cable develops a fault to earth, the limiting resistance 13 is no longer in the circuit, the voltage across the solenoid 5 is excessive and, in consequence, an auxiliary solenoid 13 connected across the solenoid 5 becomes energized sufficiently to raise the switch 14 to the open position and break the maintaining circuit. Indicating lamps 15 show that the main switch is closed and that the rectifier is working.

47. 发明专利

GB360105A Improvements in or relating to conveyors, particularly for use in underground workings 未知
公开(公告)号：GB360105A
公开(公告)日：1931-11-05
申请号：GB2634630
申请日：1930-09-03
申请人： BRITISH JEFFREY DIAMOND LTD , HORACE TINSLEY
IPC分类号： B65G23/00
摘要： 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.

48. 发明专利

GB329117A Improvements in or relating to coal mining machinery 未知
公开(公告)号：GB329117A
公开(公告)日：1930-05-15
申请号：GB1159229
申请日：1929-04-15
申请人： BRITISH JEFFREY DIAMOND LTD , HORACE TINSLEY
IPC分类号： E21C29/22
摘要： 329,117. British Jeffrey-Diamond, Ltd., and Tinsley, H. April 15, 1929. Coal - cutting machines. - In a truck-mounted coalmining machine, the truck is driven by means of a vertical shaft from the motor of the machine, the shaft carrying a bevel pinion in constant mesh with two coaxial bevel pinions from either of which the motion is transmitted through a friction clutch. The vertical shaft 8, driven from the motor of the machine, drives opposed bevel gears 10, 11, the gear 10 being secured to a transverse shaft 7, and the gear 11 to a sleeve 12 and to the outer member 14 of a disc clutch 15 ; the inner member 18 of this clutch is integral with the outer member 17 of a further disc clutch 16, the inner member 24 of the latter clutch being secured to the shaft 7. The clutches are controlled by an axially-movable member 27 engaged by a member 27 provided with a pin 27b engaging an inclined way 27 in a nut 27 which is adjusted by a screw 25 and hand wheel 26. The clutch member 17 has teeth 19 which drive a truck axle directly or through an idler gear 20. The positions of the clutches are indicated by a bell-crank lever 28 with one arm in threaded engagement with the screw 25. A brake is provided and may comprise brake blocks 34, Fig. 3 pivoted to links 35 and forced against the truck wheels by means of a cam 37, preferably operated through worm gearing 38, Fig. 2, by a shaft 39 passing through the screw 25 and connected to a hand wheel 40.

49. 发明专利

GB323655A Improvements in or relating to conveyors, particularly for use in coal mining 未知
公开(公告)号：GB323655A
公开(公告)日：1930-01-09
申请号：GB143529
申请日：1929-01-15
申请人： BRITISH JEFFREY DIAMOND LTD , JOHN LITHGOE
IPC分类号： B65G23/44
摘要： 323,655. British Jeffrey-Diamond, Ltd., and Lithgoe, J. Jan. 15, 1929. Tensioning belts. - In endless-belt conveyers for use in coal mining wherein the tail-end portion B is associated telescopically with the stationary intermediate portion A, the part B is moved with respect to the part A to tension the belt C by flexible members I. Each rope I is secured at J to the outer end of the part A and is passed round a pulley K.mounted on the part B to a winding drum L also mounted on the part B. The drums L are mounted on a shaft M having pawl-and-ratchet mechanism 0, P for holding it in position.

50. 发明专利

GB298765A Improvements in or relating to coal-cutting or like machines 未知
公开(公告)号：GB298765A
公开(公告)日：1928-10-18
申请号：GB2633527
申请日：1927-10-05
申请人： BRITISH JEFFREY DIAMOND LTD , HORACE TINSLEY
IPC分类号： E21C31/00
摘要： 298,765. British Jeffrey-Diamond Ltd., (formerly Diamond Coal-Cutter Co., Ltd.), and Tinsley, H. Oct. 5, 1927. Coal-cutting machines.-In a coalcutting or like machine of the chain type in which the cutter jib is adapted to be swung about a stationary shaft which also supports the driving- sprocket of the cutter-chain, the stationary shaft is fixed at its upper end only in the top plate of the front end, or an extension, of the machine casing. The shaft 2, with a sleeve 21, is held by a nut 17 and locking-washer 18 and is secured against rotation by a key 19; a flange 15 engages a recess in the jib 7 to hold the latter, assisted by a ring 16 engaging the upper bifurcation 7 of the jib. The driving- sprocket 8 of the cutter-chain 9 has a sleeve 10 supported by roller bearings 11 and ball bearings 12, 13 and is driven through a sliding. clutch-sleeve by a train of gears 3, 4, 5, 6.

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