US869695A - Railway-frog. - Google Patents
Railway-frog. Download PDFInfo
- Publication number
- US869695A US869695A US38661707A US1907386617A US869695A US 869695 A US869695 A US 869695A US 38661707 A US38661707 A US 38661707A US 1907386617 A US1907386617 A US 1907386617A US 869695 A US869695 A US 869695A
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- Prior art keywords
- rails
- frog
- point
- railway
- invertible
- 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
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-
- 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
- E01B7/28—Crossings
Definitions
- This invention relates to railway frogs, and the invention has for its object to provide reversible rails and points for stiffV frogs, permitting of the rails being rearranged and the points inverted, when worn by rolling stock passing over the same.
- My invention aims to obviate the discarding of frogs on account of injured wings and points, and to construct the saine whereby they can be changed, and made to serve twice the period of time as ordinary frogs.
- Figure l is a plan of a frog constructed in accordance with my invention, showing similar angles on each end of wings
- Fig. 2 is a horizontal sectional view of the same
- FigA 3 is an enlarged cross Asectional view of the frog taken on the line III- III of Fig. l
- Fig. 4 is a perspective view of an invertible point
- Fig. 5 is a sectional view of a point made solid with the filler block so that point and filler would both be invertible, this part of filler to be made the same length as the invertible point
- Fig. (i is a perspective view of a filler plate for invertible points.
- I construct a frog of two wing rails I and 2, constituting the wings of a frog.
- I use heel rails 5, and heel blocks 5l and a point 6, these parts being secured together by fastenings, generally bolts 7, said bolts passing through the web portions of said elements.
- Foot guards 9 are used, these guards together with the filler blocks and heel rails being common to the present type of railway frog.
- 'lhe rails ,l and 2 are constructed and bent with similar angles, whereby when thetops of the rails l and 2 constituting the wing of the frog, have become worn at the point, these rails can be reversed and transposed, tbe rail l turned end for end being used where the rail 2 was originallyused and rail 2 turned end for end in the position originally occupied by rail I, 'lhis bas been impossible heretofore due principally to the angularity of the rails l and 2, also owing to the fact that said rails were not of a proper length.
- he point (i of the frog, Fig ⁇ Ll, is made without a base or especially designed head, the top and bottom of the point being identical in construction, whereby when the top of the point has become worn, said point can be inverted and what was then thelower surface thereof used as the top of the point.
- This point can also be made solid with filler blocks, as per Fig. 5, then by inverting the tiller, the point would be thesame as Filler plates l() can be used to brace and form a foundation for the invertible points of a frog.
- a frog consisting ot' elongated wing,r rails of similar nngulnrity and :in invertible point. said rails and point being suitably connected together.
- a ⁇ frog consisting ot' interchangeable elongated wing rails having similar angularity, an invertible point, and means for securing said rails and point together.
- a frog consisting ot' elongated wingr rails havingr similar angles adapting said rails to be interclianged
- L frog. consisting of' elongated and intercliangeable wing rails, :in invert'ible point, and tiller blocks between the lower face of the invertible point and base of the wing rails.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ladders (AREA)
Description
No. 869,695. PATENTED OCT. 29. 1907. T. F. DONAHUE. RAILWAY PROG.
APPLIOATION FILED AUG. 1, 1907.
ZSEEETS-SHLET 1.
ano-Lucia;
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PATENTED 001229.41907.
T. F. DONAHUE. RAILWAY PROG.
APPLIoATIoN FILED AUG. 1. 1907.
2 SHEETS-SHEET 2.
attnue# 5 TATENT oEEioE.
TI-IOMAS F. DONAHOE, OF PITTSBURG, PENNSYLVANIA.
RAILWAY-FBO G.
Speeication of Letters Patent.
Patented Oet. 29, 1907.
Application filed August 1| 1907- Serial No. 386.617.
To all whom it may concern:
Be it known that I, THOMAS F. DoNAHoE, a citizen of the United States of America, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Railway-Frogs, of which the followingr is a specilication, reference being had therein to the accompanying drawing.
This invention relates to railway frogs, and the invention has for its object to provide reversible rails and points for stiffV frogs, permitting of the rails being rearranged and the points inverted, when worn by rolling stock passing over the same.
It is a well known fact that certain parts of the rails of a frog, particularly the rails forming the wings of the frog are subject to considerable wear by the tread of wheels, passing over saine. This is also true of points of frogs, the points wear as the wing gets low, and heretofore, it has been necessary to construct new wings or discard the frogs that have become worn to that extent as to cause a derailment or injury to rolling stock.
My invention aims to obviate the discarding of frogs on account of injured wings and points, and to construct the saine whereby they can be changed, and made to serve twice the period of time as ordinary frogs.
The detail construction entering into my invention will be presently described, and then specifically pointed out in the appended claims.
In the drawings, Figure l is a plan of a frog constructed in accordance with my invention, showing similar angles on each end of wings, Fig. 2 is a horizontal sectional view of the same, FigA 3 is an enlarged cross Asectional view of the frog taken on the line III- III of Fig. l, Fig. 4 is a perspective view of an invertible point, Fig. 5 is a sectional view of a point made solid with the filler block so that point and filler would both be invertible, this part of filler to be made the same length as the invertible point, and Fig. (i is a perspective view of a filler plate for invertible points.
To put my invention into practice, I construct a frog of two wing rails I and 2, constituting the wings of a frog. In connection with these rails, I use heel rails 5, and heel blocks 5l and a point 6, these parts being secured together by fastenings, generally bolts 7, said bolts passing through the web portions of said elements. Foot guards 9 are used, these guards together with the filler blocks and heel rails being common to the present type of railway frog. 'lhe rails ,l and 2 are constructed and bent with similar angles, whereby when thetops of the rails l and 2 constituting the wing of the frog, have become worn at the point, these rails can be reversed and transposed, tbe rail l turned end for end being used where the rail 2 was originallyused and rail 2 turned end for end in the position originally occupied by rail I, 'lhis bas been impossible heretofore due principally to the angularity of the rails l and 2, also owing to the fact that said rails were not of a proper length.
he point (i of the frog, Fig` Ll, is made without a base or especially designed head, the top and bottom of the point being identical in construction, whereby when the top of the point has become worn, said point can be inverted and what was then thelower surface thereof used as the top of the point. This point can also be made solid with filler blocks, as per Fig. 5, then by inverting the tiller, the point would be thesame as Filler plates l() can be used to brace and form a foundation for the invertible points of a frog.
It will be apparent to track supervisors and those familiar with the construction and maintenance of stiff frogs, that I have devised a frog that-will last twice the life of ordinary frogs, thus reducing the expense of track maintenance, besides, insuring greater safety of rolling stock.
Having fully described my invention, what I claim and desire to secure by Letters Patent, isz# 1. A frog consisting ot' elongated wing,r rails of similar nngulnrity and :in invertible point. said rails and point being suitably connected together.
2. A\ frog consisting ot' interchangeable elongated wing rails having similar angularity, an invertible point, and means for securing said rails and point together.
it. A frog consisting ot' elongated wingr rails havingr similar angles adapting said rails to be interclianged, and
, an invertible point.
L frog.;- consisting of' elongated and intercliangeable wing rails, :in invert'ible point, and tiller blocks between the lower face of the invertible point and base of the wing rails.
ln testimony whereof I nilix my signature in the presence ot' two witnesses.
THOMAS F. DONAHOE.
Witnesses MAX II. Snomvi'rz,
A. .T. '.lmeo.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38661707A US869695A (en) | 1907-08-01 | 1907-08-01 | Railway-frog. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38661707A US869695A (en) | 1907-08-01 | 1907-08-01 | Railway-frog. |
Publications (1)
Publication Number | Publication Date |
---|---|
US869695A true US869695A (en) | 1907-10-29 |
Family
ID=2938142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US38661707A Expired - Lifetime US869695A (en) | 1907-08-01 | 1907-08-01 | Railway-frog. |
Country Status (1)
Country | Link |
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US (1) | US869695A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5456430A (en) * | 1993-05-04 | 1995-10-10 | Ortiz-Rivas; Arturo A. | Frog with interchangeable insert |
-
1907
- 1907-08-01 US US38661707A patent/US869695A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5456430A (en) * | 1993-05-04 | 1995-10-10 | Ortiz-Rivas; Arturo A. | Frog with interchangeable insert |
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