US391552A - Two-part girder-rail - Google Patents
Two-part girder-rail Download PDFInfo
- Publication number
- US391552A US391552A US391552DA US391552A US 391552 A US391552 A US 391552A US 391552D A US391552D A US 391552DA US 391552 A US391552 A US 391552A
- Authority
- US
- United States
- Prior art keywords
- rail
- plate
- floor
- girder
- guard
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 240000007839 Kleinhovia hospita Species 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
- B65G21/20—Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces
- B65G21/22—Rails or the like engaging sliding elements or rollers attached to load-carriers or traction elements
Definitions
- the principal object of this invention is to provide a two-part girder-rail with a removable floor-plate.
- Figure l shows in cross-section the two-part girder-rail and its door-plate forming the subject of this invention.
- Fig. 2 shows a section of the rail shown 1n Fig. l, upon a reduced scale, in perspective.
- Fig. 3 is a view similar to Fig. 2, having the floor-plate removed.
- Fig. 4. shows 1n perspective a section of the floor-plate detaehed from the rail.
- Fig. 4 the hoor-plate is shown beveled toward the end c, to permit of the easy passage of the car-wheel danges over said fioorplate.
- c rlhe dotted lines b b, Fig. 1 indicate the outlines for a different form of flange or base which may be given to the two-part rail, instead of the wider danges, (shown in the several figures.
- Such rivets and bolts are liable to work loose, and the floor-plate, being necessarily thin at its tapered ends, quickly wears away, requiring frequent eXpensive and troublesome renewals; but with the construction shown in the drawings the desired end is attained by treating the door-plate C separately from the rail, tapering the ends, or otherwise shaping it, as may be desired, and also tempering or otherwise o to providing for its ready renewal or replace- 7 ment in the rail.
- Said floor-plate may also be made of a harder quality of steel or other metal than is compatible with safety in the head or guard parts of the rail, thereby enabling the floor-plate to resist the wear and abrasion to which it alone is most usually subject.
- Said door-plate by this method of manufacture, may thus be made as durable as, or even more durable than, the other parts ofthe rail proper.
- the guard part B being subject to the greatest wear on curves, may also by this construction be removed when worn out and replaced by a new guard-piece before the head part A has been rendered unfit for further use.
- girder guard-ramas of my invention I c1aim XV.
- E. HOOPES A grooved girder-mil provided with a. re- A. J. BRYAN.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Devices For Sliding Doors (AREA)
Description
UNITED STATES ATENE- MICE@ ARTHUR J. MOXHAM, OF JOHNSTOWN, PENNSYLVANIA.
TWOPART eiRoEFsRAiL.
SPECIFICATION forming part of Letters Patent No. 391,552, dated October 23, 1888.
Application filed February 13, 188B. Serial No. 263,835. (No model.)
T @ZZ whom it may concern.-
Be it known that I, ARTHUR J. of Johnstown, in the county of Cambria and State of Pennsylvania, have invented a new and useful Two-Part Girder Guard-Rail, which invention is fully set forth and illustrated in the following` specification and accompanying drawings.
The principal object of this invention is to provide a two-part girder-rail with a removable floor-plate.
The invention will first be described in devtail, and then particularly set forth in the claim..
In the accompanying drawings, Figure l shows in cross-section the two-part girder-rail and its door-plate forming the subject of this invention. Fig. 2 shows a section of the rail shown 1n Fig. l, upon a reduced scale, in perspective. Fig. 3 is a view similar to Fig. 2, having the floor-plate removed. Fig. 4. shows 1n perspective a section of the floor-plate detaehed from the rail.
In Fig. 4 the hoor-plate is shown beveled toward the end c, to permit of the easy passage of the car-wheel danges over said fioorplate.
In said figures the several parts are indicated by letters of reference as follows: When the head part A and the guard part B are bolted together by the bolts D, as shown in the drawings, there is left a dovetailed space, into which the dovetail or tongue c of the floor-plate G may be firmly interlocked and clamped. The adjacent webs of said parts A and B, constituting the two parts of the rail, are preferably slightly concave, as shown in Figs. l, 2, and 3, so that a bearing between the two webs is obtained at the bottom a and at or near the interlocking flange c of the floor-plate C, so that a small interval or space is left between the webs intermediate between the said points, whre the bolts D pass through the respective we s.
c rlhe dotted lines b b, Fig. 1, indicate the outlines for a different form of flange or base which may be given to the two-part rail, instead of the wider danges, (shown in the several figures.
MOXHAM,
treating it to make it resist wear, in addition In the manufacture of rolled steel switch- 5o pieces it is necessary to vary the depth of the groove Where the rails cross each other, in order to carry the wheels over the diagonal grooves that are cut through the head and guard of the rail for the passage of the wheeliianges. This has been heretofore done, in rolled switch-pieces, by filling up the groove to the desired height with a Hoor-plate previously forged and shaped, and fastening said Hoor-plate in place by rivets or bolts. Such rivets and bolts are liable to work loose, and the floor-plate, being necessarily thin at its tapered ends, quickly wears away, requiring frequent eXpensive and troublesome renewals; but with the construction shown in the drawings the desired end is attained by treating the door-plate C separately from the rail, tapering the ends, or otherwise shaping it, as may be desired, and also tempering or otherwise o to providing for its ready renewal or replace- 7 ment in the rail. Said floor-plate may also be made of a harder quality of steel or other metal than is compatible with safety in the head or guard parts of the rail, thereby enabling the floor-plate to resist the wear and abrasion to which it alone is most usually subject. Said door-plate, by this method of manufacture, may thus be made as durable as, or even more durable than, the other parts ofthe rail proper. The guard part B, being subject to the greatest wear on curves, may also by this construction be removed when worn out and replaced by a new guard-piece before the head part A has been rendered unfit for further use.
In the drawings a two-part sidebearing guard-rail is shown, and such would generally be used for the purposes of this invention; but it is evident that any type of girder-rail with which it is desired to use a floor-plate, such as the plate C, can be constructed on this principle, if desired. It is also evident that for the purpose of the interlocking of the parts many modifications of the dovetail form of the lower lug or base, c, of the door-plate C may be made without departing from the principle of the dovetail c, (shown in the drawings,) the interlocking of the respective parts ab the point a' being the object; to be accommovable floor-plate secured Within the groov plished. of the rail by a dovebail or locking sont, sub- I do not herein Claim a two-part', rail as Such; stantially as and for the purposes set forth. but, ARTHUR J. MOXHAM. 5 Having fully described my said two-part, Witnesses: A
girder guard-ramas of my invention I c1aim XV. E. HOOPES, A grooved girder-mil provided with a. re- A. J. BRYAN.
Publications (1)
Publication Number | Publication Date |
---|---|
US391552A true US391552A (en) | 1888-10-23 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US391552D Expired - Lifetime US391552A (en) | Two-part girder-rail |
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US (1) | US391552A (en) |
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- US US391552D patent/US391552A/en not_active Expired - Lifetime
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