US52099A - Improvement in railroad-frogs - Google Patents
Improvement in railroad-frogs Download PDFInfo
- Publication number
- US52099A US52099A US52099DA US52099A US 52099 A US52099 A US 52099A US 52099D A US52099D A US 52099DA US 52099 A US52099 A US 52099A
- Authority
- US
- United States
- Prior art keywords
- frog
- bolts
- frogs
- railroad
- improvement
- 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
- 229910000831 Steel Inorganic materials 0.000 description 30
- 239000010959 steel Substances 0.000 description 30
- 230000004048 modification Effects 0.000 description 8
- 238000006011 modification reaction Methods 0.000 description 8
- 241000269350 Anura Species 0.000 description 6
- 229910001018 Cast iron Inorganic materials 0.000 description 4
- 230000002265 prevention Effects 0.000 description 2
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
- E01B7/10—Frogs
- E01B7/14—Frogs with movable parts
Definitions
- My invention consists of the mode, substantially as described hereinafter, of securing steel plates to a railroad-frog, so that they may be longated without losing their firm hold of the rog.
- My invention has for its object the prevention of the loosening and breaking of the steel plates,owin g to the tendency ofthe car-wheels to elongate them.
- Figure l is a plan view of myimproved railroad-frog, with one ofthe steel plates removed 5 Fig. 2, a sectional elevation on the line l 2, Fig. l, Fig. 3, a plan view of a modification of my improved frog; Fig.Y 4, a sectional elevation on the line 3 4, Fig. 3 5 Fig. 5, a plan view of another modification of my improved frog; Fig. 6, a sectional elevation on the line 5 6, Fig. 5.
- My improved frog consists, as usual, of a strong cast-iron plate, A, having at each end a flange, b, and at each side lugs q, in which are holes a a for receiving the spikes by which the frog is secured to the track.
- the frog has the usual treads, to each of which is secured a steel plate, d, the frog having also the usual point D, composed of the steel tip e and steel plate f.
- the above-mentioned parts are, as regards general arrangements, similar to those of ordinary frogs, and therefore demand no minute description. In ordinary frogs, however, the steel plates cl d and j' are permanently riveted'to the cast-iron plate, so that no longitudinal expansion of the plates is permitted.
- each plate d is secured to the frog by bolts g g, h h, and h h', each bolt having a beveled head adapted to a countersink in the plate, and being furnished below with a suitable nut.
- the bolts g g may be termed permanent bolts, as they fit snugly in the holes in the steel plate and frog.
- Each of the bolts k It and h h passes through an inclined hole, i, as best observed on reference to Fig. 2, the bolt tting to the sides ofthe opening, so that it can have no lateral play.
- each steel plate d to be elongated in either of the directions pointed out by the arrows, Fig. 2, from that portion ofthe plate which is secured permanently to the frogs by the bolts g g. rlhis elongation of the steel plates in no way affects their secure attachment to the frog, the slight movement of the bolts from a vertical to an inclined position having no tendency to weaken their hold of the plates.
- the plate f is secured to the frog by two permanent bolts, m m, and two yielding bolts, 1anthat is, bolts passing through inclined holes, as described above, so that the plate j can be elongated in the direction of the arrow.
- the bolts h h and 7L h pass through elongated holes in the steel plates, so that the latter can be elongated precisely as in the former case, and in the modification illustrated by Figs. 5 and 6 the holes for receiving the bolts h h and h h are elongated both in the steel plates and in the frog, with a result the same as that described above.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Connection Of Plates (AREA)
Description
"WA-rw* www" UNITED STATES PATENT GEEICE.
WILLIAM WVHARTON, J R., OF PHILADELPHIA, PENNSYLVANIA.
IMPROVEMENT IN RAILROAD-FROGS.
Specification forming part of Lett'ers Patent No. 52,099, dated January 16, 1866.
To all whom it may concern:
Be itfknown that I, WILLIAM WHARTON, Jr., of Philadelphia, Pennsylvania, have invented an Improvement in Railroad-Frogs; and I do hereby declare the following to be a full, clear, and exact description of the same,
reference being had to the accompanying drawings, and to the letters of reference marked thereon.
My invention consists of the mode, substantially as described hereinafter, of securing steel plates to a railroad-frog, so that they may be longated without losing their firm hold of the rog.
My invention has for its object the prevention of the loosening and breaking of the steel plates,owin g to the tendency ofthe car-wheels to elongate them.
In order to enable others skilled in the art to make and use my invention, I will now proceed to describe its constructionand operation.
On reference to the accompanying drawings, which form a part of this specification, Figure lis a plan view of myimproved railroad-frog, with one ofthe steel plates removed 5 Fig. 2, a sectional elevation on the line l 2, Fig. l, Fig. 3, a plan view of a modification of my improved frog; Fig.Y 4, a sectional elevation on the line 3 4, Fig. 3 5 Fig. 5, a plan view of another modification of my improved frog; Fig. 6, a sectional elevation on the line 5 6, Fig. 5.
Similar letters refer to similar parts throughout the several views.
My improved frog consists, as usual, of a strong cast-iron plate, A, having at each end a flange, b, and at each side lugs q, in which are holes a a for receiving the spikes by which the frog is secured to the track. The frog has the usual treads, to each of which is secured a steel plate, d, the frog having also the usual point D, composed of the steel tip e and steel plate f. The above-mentioned parts are, as regards general arrangements, similar to those of ordinary frogs, and therefore demand no minute description. In ordinary frogs, however, the steel plates cl d and j' are permanently riveted'to the cast-iron plate, so that no longitudinal expansion of the plates is permitted.
The frequent passage of car-wheels over and in contact with the steel plates tends to elongate the same; but this tendency is resisted by the permanent rivets, which in time fail to retain a proper hold of the plates, the latter being finally either broken or becoming so loose as to render the frog unsafe. The object of my invention has been to overcome this difficult-y.
0n reference to Figs. l and 2, it will be seen that each plate d is secured to the frog by bolts g g, h h, and h h', each bolt having a beveled head adapted to a countersink in the plate, and being furnished below with a suitable nut. The bolts g g may be termed permanent bolts, as they fit snugly in the holes in the steel plate and frog. Each of the bolts k It and h h, however, passes through an inclined hole, i, as best observed on reference to Fig. 2, the bolt tting to the sides ofthe opening, so that it can have no lateral play.
It will be seen that the inclined holes for the reception of the bolts permit each steel plate d to be elongated in either of the directions pointed out by the arrows, Fig. 2, from that portion ofthe plate which is secured permanently to the frogs by the bolts g g. rlhis elongation of the steel plates in no way affects their secure attachment to the frog, the slight movement of the bolts from a vertical to an inclined position having no tendency to weaken their hold of the plates.
It should be understood that the plate f is secured to the frog by two permanent bolts, m m, and two yielding bolts, 1anthat is, bolts passing through inclined holes, as described above, so that the plate j can be elongated in the direction of the arrow.
In the modification illustrated in Figs. 3, 4:, the bolts h h and 7L h pass through elongated holes in the steel plates, so that the latter can be elongated precisely as in the former case, and in the modification illustrated by Figs. 5 and 6 the holes for receiving the bolts h h and h h are elongated both in the steel plates and in the frog, with a result the same as that described above.
It will he evident that the number of bolts that they can be elongated Without their firm :1nd the arrangement of permanent and yieldhold of the frog being affected. ingbolts,or bolts which permit the steel plates In testimony whereof I have signed my to yield, may be modified Without departing name to this specification in the presence of from the main features of my invention. two subscribing Witnesses.
I claim as my invention and desire to secure WM. VVHARTON, JR. by Letters Patent- The mode, substantially as herein set forth, of securing steel plates to a railroad-frog so Vitnesses:
H. HoWsoN, W. J. R. DELANY.
AAL.: A
Publications (1)
Publication Number | Publication Date |
---|---|
US52099A true US52099A (en) | 1866-01-16 |
Family
ID=2121646
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US52099D Expired - Lifetime US52099A (en) | Improvement in railroad-frogs |
Country Status (1)
Country | Link |
---|---|
US (1) | US52099A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11802379B1 (en) | 2019-03-12 | 2023-10-31 | Wayne A Zins | Self guarded frog copper weld fixture |
-
0
- US US52099D patent/US52099A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11802379B1 (en) | 2019-03-12 | 2023-10-31 | Wayne A Zins | Self guarded frog copper weld fixture |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US52099A (en) | Improvement in railroad-frogs | |
US1335385A (en) | Railway-frog | |
US752517A (en) | Slide-plate for railway-switches | |
US488195A (en) | Railway-rail fastening | |
US1032578A (en) | Railroad-frog. | |
US716353A (en) | Railway-track structure. | |
US866884A (en) | Railway-frog. | |
US38098A (en) | Improvement in railroad-frogs | |
US486628A (en) | Railroad-tie and fastening | |
US880918A (en) | Railway-tie organization. | |
US881984A (en) | Heel-block for railroad-frogs and the like. | |
US173804A (en) | Improvement in railroad-frogs | |
US545821A (en) | samuel | |
US267565A (en) | Guard-rail for switch-frogs | |
US57498A (en) | Improved fastening for railroad-rails | |
US1114005A (en) | Rail-joint. | |
US84152A (en) | Improved railway-rail coupling | |
US836146A (en) | Railway-switch. | |
US943073A (en) | Railway-tie plate. | |
US82271A (en) | William b | |
US354493A (en) | Repairing rails | |
US64453A (en) | Thaddeus selleck | |
US69241A (en) | Improvement in joints of railroad-rails | |
US1119411A (en) | Metallic tie and fastener. | |
US881983A (en) | Heel-block for railroad-frogs and the like. |