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1. 发明专利

GB609510A Improvements in, or relating to, overhead runways 未知
公开(公告)号：GB609510A
公开(公告)日：1948-10-01
申请号：GB185846
申请日：1946-01-19
申请人： CHAIN DEVELOPMENTS LTD , WILLIAM SMITH
IPC分类号： B65G9/00 , B66C7/00
摘要： 609,510. Elevated railway points; buffer stops. CHAIN DEVELOPMENTS, Ltd., and SMITH, W. Jan. 19, 1946, No. 1858. [Class 104 (ii)] Points for overhead runways with suspended vehicles such as hoists or cranes and consisting of a rail section 3 pivoted to the main track 1 and moving into alignment with either the branch or the main tracks 4, 2, have the free end of the point carried by a stud 18 passing through an arcuate slot 17 in the joint plate 12 and carrying a wheeled carriage 19 running on the plate. The rails are of H-section with the vehicle wheels running on the lower flange. Stops 14 on the plate 12 limit the movement of rail 3 which carries a spring-pressed ball or plunger engaging indents 15 in plates 13 secured below the rails 2, 4. Chains 23, 24 are connected to the carriage and pass through tubes 22 fixed by clips 21 to the plate 12 for manual operation of the points. Rail 3 carries arms 27, 28 with abutment ends 27 , 28 to prevent a vehicle running off an open rail.

2. 发明专利

GB589009A A new or improved method of manufacturing or producing chain 未知
公开(公告)号：GB589009A
公开(公告)日：1947-06-09
申请号：GB646345
申请日：1945-03-15
申请人： CHAIN DEVELOPMENTS LTD , WILLIAM SMITH
IPC分类号： B21L15/00
摘要： 589,009. Making chains. CHAIN DEVELOPMENTS, Ltd., and SMITH, W. March 15, 1945, No. 6463. [Class 83 (ii)] Chains for operating pulley blocks &c. having links of predetermined dimensions are made by cutting predetermined lengths from circular or other stock, bending into half links which are then welded in pairs, interconnecting two welded links to provide a short chain portion of three links by threading half links through each welded link and welding them together, and subsequently building up in stages by interconnecting chain portions of ever-increasing length by threading therein and welding together further pairs of half links. The flash metal resulting from the weld of each complete individual link is removed as produced and the centre link of a three-link portion is also similarly treated after welding. Two three-link portions are then united together by welding a pair of half links thereto to form a seven-link portion and the flash of the new link is then removed. After similarly joining two sevenlink portions to produce a fifteen-link portion and so on until the chain is of the desired length, the flash of the remaining centre links is then removed, the chain being held in a channelled bed or frame. Chain portions having different numbers of links may also be similarly united according to the length of chain. The stock may be fed from a drum through a straightening machine and before bending may be heated to red heat in a furnace and bent before any appreciable degree of cooling, and the ends of the half links cleaned before welding. After the chain is complete it may be heated in a normalizing furnace and may then be tested and polished by barrelling &c. One or more flash-welding machines may be used to effect the welds. The half links may be bent to U- shape for links of round or oval shape, but for stud chain-links one or both halves may be D-shaped. Specification 589,018 is referred to.

3. 发明专利

GB595463A Improvements in, or relating to, hoists 未知
公开(公告)号：GB595463A
公开(公告)日：1947-12-05
申请号：GB404645
申请日：1945-02-17
申请人： CHAIN DEVELOPMENTS LTD , WILLIAM SMITH
IPC分类号： B66C7/00
摘要： 595,463. Hoists. CHAIN DEVELOPMENTS, Ltd., and SMITH, W. Feb. 17, 1945, No. 4046. [Class 78(v)] A hoist comprises a drum 1 containing motor 14, gear case 10 at one end of the drum, brake, cover 15 at the other end of the drum, and a keyed sleeve or socket 19 whereby the main gearing spindle 21 is disengagingly connected to the motor driving shaft 18. In an embodiment, motor 14 secured to annular shield 17 drives shaft 18 which is detachably coupled at 19 to spindle 21 and the latter, through gearing 22-23, 25-26, drives pinion 28 which meshes with internal ring gear 29 and causes drum 1 to rotate on bearings 3. Drum 1 winds up, hoisting cable 2. The motor 14 is contained within end plates 4, 5 to one of which is bolted gear cover 10 fitted with inspection plate 31 and to the other of which is bolted cover 15 containing brake 12 and electrical control 'gear 13. Between end plates 4, 5 is secured shield 7 which is cupped to embrace wheels 35 running on rail 40. To prevent overwinding, cable 2, Fig. 1, engages shoe 36 sliding on rod 37 so that, when the cable is fully wound, the shoe contacts button 39 and switches off motor 14. In another embodiment, Fig. 4, shield 7 supports second motor 42 and also box 44 containing control gear for both motors, the motor 42 driving the wheels 35.

4. 发明专利

GB589214A Improvements in or relating to machines for straightening rod, wire or the like 未知
公开(公告)号：GB589214A
公开(公告)日：1947-06-13
申请号：GB697445
申请日：1945-03-20
申请人： CHAIN DEVELOPMENTS LTD , WILLIAM SMITH
IPC分类号： B21D3/05 , B21F1/02
摘要： 589,214. Straightening. CHAIN DEVELOPMENTS, Ltd., and SMITH, W. March 20, 1945, No. 6974. [Class 83 (iv)] Rod-straightening apparatus comprises grooved rollers 21 carried in a fixed frame 9 co-operating with grooved rollers 15 in a frame adjustable about a pivot 11 by a screw 30. The rod is fed against a stop 35 from a reel 2 by electromotors rotating the rollers 21 and is severed by a treadleactuated guillotine blade 34.

5. 发明专利

GB589018A Improvements in, or relating to, the manufacture or production of chain 未知
公开(公告)号：GB589018A
公开(公告)日：1947-06-09
申请号：GB1109445
申请日：1945-05-02
申请人： CHAIN DEVELOPMENTS LTD , WILLIAM SMITH
IPC分类号： B21L15/00
摘要： 589,018. Making chains. CHAIN DEVELOPMENTS, Ltd., and SMITH, W. May 2, 1945, Nos. 11094/45 and 2617/46. [Classes 83 (ii) and 83 (iv)] Trimming.-The flash metal from the weld of a chain link made by welding together two half-links, is removed by placing the link into a die aperture of substantially the same shape and dimensions as the desired cross-section of the link at its widest part and forcing the link inwardly of the aperture. The die 4 may be of cruciform shape, the limbs 4b being used to receive adjacent interconnected links of a length of chain and the limbs 4a performing the flash-removing operation, the walls of the limbs being inclined from 8 to 12 degrees, and a clearance of from /32 to /64 inch being provided between the walls of the finislied link and the wall of the die. The welded link 6, 7, preferably before it cools down to room temperature after welding, is placed in the die with the flash 8 resting on the edge of the aperture and the outer flash removed by forcing the link into the die by a concaved plunger 3, the stroke of which is limited so that in the final position of the link a clearance x exists between the upper face of the die and the top of the link eye equal to the diameter of one side or end of the link to avoid damage to an interconnected link. In order that the inner flash may be removed at the same time, a tool 10 with a stepped end fitting the non-stripping portion of the die and formed with inclined cutting edges, is placed under the flash inside the eye prior to operating the plunger. The tool may be inserted and removed by hand or automatically. In a modification for links of various sizes and shapes on a slotted bolster are placed a fixed die block 11 and a slidable die block 12, each with removable dies 22, the slidable die being moved by a hand-operated cam 17 against the action of springs 18, a stop on the cam or bed being provided. The die block 11 may be adjusted over the bolster to suit the size of link by screws 14 and locked in position by bolts 16 passing through elongated slots 15. The bolster has an aperture of sufficient dimensions for a link of maximum size. Specification 589,009 is referred to.

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