US71598A - Improved railroad-jack - Google Patents
Improved railroad-jack Download PDFInfo
- Publication number
- US71598A US71598A US71598DA US71598A US 71598 A US71598 A US 71598A US 71598D A US71598D A US 71598DA US 71598 A US71598 A US 71598A
- Authority
- US
- United States
- Prior art keywords
- jack
- rail
- legs
- lifting
- improved railroad
- 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
- 241000282485 Vulpes vulpes Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
Definitions
- the lifting-screw A is shown as mounted in a nu't or box, B, supported upon three legs C, pivoted in sockets in projecting wings I on the nut.
- the en ds of the legs project into their sockets, and are intended to turn in close'contact with the walls of the cavities, which thus receive part of the lifting strain, and relieve the journals or pivots ofthe legs from strain.
- Thelegs are formed with broad feet K, to prevent sinking into soft ground.
- YA hook, E is attached to the lifting-screwby a swivel or link, D, which allows it both to oscillate Ior swing freely and tb turn axially.
- two of the legs may be placed outside of and parallel to thelral tohbe lifted.
- the third one may be held up until the hook is placed under the rail, when it may be rested on the ground inside the rail, that is, between the two rails.
- F an ordinary handspike or crow-bar, F, such as all track' gangs use
- the rail and cross-ties are lifted to the required level, and then held there until the earth is rammed beneath them.
- the vhooky grasps the bottom of the rail only, the workman can sight along the top of the rail while it is being lifted, and thus secure its proper adjustment.
- t is obvious that, by resting the feet on the cross-ties, and working the screw, 'the rail and spikes will be draw-n away from the ties.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Description
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ALFRED D. FOX',` OIL CITY, PENNSYLVANIA. Letters Patent No. 71,598, dated December 3, 1867.
IMPROVBD RAILROAD-JACK.
TO ALL WHOM IT MAY (IOIICERN:` l
Be it lirnown that I, ALFRED D. FOX, of Oil City, in the county of Venango, and State of Pennsylvania,
,Y have invented a new and useful Improvement in Railroad-Jacks, of which the following is a full, clear, and
exact description, reference being had to the accompanying drawing, which makes part of this specification, and which represents a view in perspectiveof my improved jack.
It is the object-of my invention to provide a cheap, portable, simple, and effective device `for lifting or straightening railway-trucks; and to this end the improvement herein claimed consists in providing the liftingscrew with aswivelled hook, which gra-eps the underside of the rail without obstructing the sight along thev rail, 'and mounting its nut on a tripod with pivoted arms, -so arranged that the jack can be adjusted to rest on uneven ground, as hereinafter more fully shown.
In the accompanying drawing, the lifting-screw A is shown as mounted in a nu't or box, B, supported upon three legs C, pivoted in sockets in projecting wings I on the nut. The en ds of the legs, it will be observed, project into their sockets, and are intended to turn in close'contact with the walls of the cavities, which thus receive part of the lifting strain, and relieve the journals or pivots ofthe legs from strain. Thelegsare formed with broad feet K, to prevent sinking into soft ground. YA hook, E, is attached to the lifting-screwby a swivel or link, D, which allows it both to oscillate Ior swing freely and tb turn axially.
In applying this jack, two of the legs may be placed outside of and parallel to thelral tohbe lifted. The third one may be held up until the hook is placed under the rail, when it may be rested on the ground inside the rail, that is, between the two rails. By inserting an ordinary handspike or crow-bar, F, such as all track' gangs use, in the hole in the top of the screw, and turning it in the proper direction, the rail and cross-ties are lifted to the required level, and then held there until the earth is rammed beneath them. As the vhooky grasps the bottom of the rail only, the workman can sight along the top of the rail while it is being lifted, and thus secure its proper adjustment. t is obvious that, by resting the feet on the cross-ties, and working the screw, 'the rail and spikes will be draw-n away from the ties.
' I am aware that a lifting-jack, having four legs rigidlyattached to the nut, and united at'their bottom in pairs, has been used, and therefore do not claim broadly a portable jack, mounted on legs, which straddle the rail; but having thus described the construction and operation of my improved jack, what I do claim thereinas new, and desire to secure'by Letters Patent, is 4 The combination, with the lifting-screw carrying the swivelling-hook` which grasps the rail from beneath,
of the nut or box mounted on the independent legs, when the several parts are constructed and arranged for jointoperaton, as and for the purpose described.`
n In testimony whereof, I have hereunto subscribed myname.
' ALFRED D. FOX.
Witnesses:
EDM. F. BROWN, J. I. PEYToN.
Publications (1)
Publication Number | Publication Date |
---|---|
US71598A true US71598A (en) | 1867-12-03 |
Family
ID=2141113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US71598D Expired - Lifetime US71598A (en) | Improved railroad-jack |
Country Status (1)
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US (1) | US71598A (en) |
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0
- US US71598D patent/US71598A/en not_active Expired - Lifetime
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