US214109A - Improvement in elevating apparatus - Google Patents
Improvement in elevating apparatus Download PDFInfo
- Publication number
- US214109A US214109A US214109DA US214109A US 214109 A US214109 A US 214109A US 214109D A US214109D A US 214109DA US 214109 A US214109 A US 214109A
- Authority
- US
- United States
- Prior art keywords
- clamp
- improvement
- elevating apparatus
- stack
- course
- 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
- 230000003028 elevating Effects 0.000 title description 8
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 241000283153 Cetacea Species 0.000 description 2
- 230000002493 climbing Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
- 239000002965 rope Substances 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
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/12—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks
- B66F7/14—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks screw operated
Definitions
- My invention relates to the erection of stacks or other tubular or hollow columns made of sheet-iron; and it consists in an apparatus for elevating and holding the same as the work progresses, the sections being added or put on at the bottom, as will be hereinafter more fully set forth.
- Figure 1 is a side elevation of my invention.
- Fig. 2 is a central vertical section of the same.
- A represents the bed or bed plate upon which the stack or column is to be erected.
- This bed-plate is, as usual, provided with a central opening, communicating with the underground passage, and on top of the bed-plate is the circular flange or box B, in which the stack is to rest.
- each frame containing a vertical screw, D, placed in bearings at a a, and provided with a wormwheel, E.
- F is a worm-shaft engaging with the wheel E, and provided with a crank, G, at one end for rapid operation, while at the other end said shaft F is, by gears b b, connected with another crank, H, to be used for slowcr operation.
- Each screw D has a nut, I, thereon, as shown.
- a platform, K upon which the workmen are to stand to rivet the sections together on the outside of the stack.
- a similar platform or staging, L, is erected within the stack.
- I further use a clamp or band for encircling the stack, which clamp is made in three sections, M, each section having at its ends projecting ears or flanges N, for the passage of bolts d, to unite the sections and clamp the same tightly around the stack.
- Each section of the clamp is, at or near the center, provided with projecting-horns 0 O, to fit over the nuts I upon the screws D.
- the bolts binding the clamp are then unscrewed, releasing the clamp, and by turning the cranks G the nuts arelowered, allowing the clamp to descend until it can be again adjusted for another lift, always taking hold under the edge on the lower end of the course above, giving a good support for the structure on the clamp while the work of raising the structure is proceeding.
- the clamp being lowered and readjusted, and the additional plates secured, the workmen on the inside stage and outside platform are busy driving the rivets, so that the whole of the operation is going on at the same time.
- guy-lines may be attached to the capping and used in case a storm of wind arises. They are, however, hardly required until the structure attains a height of one hundred feet. There is usually a step-ladder riveted on the outside, and the entire height of the structure, so that access can be had to release the guy-lines secured on top of the structure. ⁇ Vhen the structure gets heavy the cranks H are used for raising, and the cranks G simply for lowering, the nuts.
- Hydraulic pressure may be used, if desired; but I prefer to employ jack-screws, as there is no liability of one shooting far ahead of an- 3.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Description
T. GRITG-HLOW. Elevating Apparatus.
No. 214.109. Patented'April 8,1879,
' WITNESSES By Mm mI S PLPETERS, PHOTO-LITHOGRAPflER, WASHINGTON. D C.
UNITED STATES PATENT OEEIoE THOMAS CRITOHLOW, OF STEEL WORKS, PENNSYLVANIA.
IMPROVEMENT lN ELEVATING APPARATUS.
Specification forming part of Letters Patent No. 214,109, dated April 8, 1879; application filed March 6, 1879.
To all whom it may concern:
Be it known that I, THOMAS GRIToHLow, of Steel Works, in the county of Dauphin, and in the State of Pennsylvania, have invented certain new and useful Improvements in Elevatin g Apparatus; and do hereby declare that the following is a full, clear, and exact description thereof, reference being bad to the accompanymg drawings, and to the letters of reference marked thereon, making a part of this specification.
My invention relates to the erection of stacks or other tubular or hollow columns made of sheet-iron; and it consists in an apparatus for elevating and holding the same as the work progresses, the sections being added or put on at the bottom, as will be hereinafter more fully set forth.
In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawings, in which Figure 1 is a side elevation of my invention. Fig. 2 is a central vertical section of the same.
A represents the bed or bed plate upon which the stack or column is to be erected. This bed-plate is, as usual, provided with a central opening, communicating with the underground passage, and on top of the bed-plate is the circular flange or box B, in which the stack is to rest.
()n thebed-plate A are suitably fastened three frames, (J, equidistant from each other, each frame containing a vertical screw, D, placed in bearings at a a, and provided with a wormwheel, E. F is a worm-shaft engaging with the wheel E, and provided with a crank, G, at one end for rapid operation, while at the other end said shaft F is, by gears b b, connected with another crank, H, to be used for slowcr operation. Each screw D has a nut, I, thereon, as shown.
On top of the frame 0 is laid a platform, K, upon which the workmen are to stand to rivet the sections together on the outside of the stack. A similar platform or staging, L, is erected within the stack.
I further use a clamp or band for encircling the stack, which clamp is made in three sections, M, each section having at its ends projecting ears or flanges N, for the passage of bolts d, to unite the sections and clamp the same tightly around the stack. Each section of the clamp is, at or near the center, provided with projecting-horns 0 O, to fit over the nuts I upon the screws D.
The usual method of erecting vertical tubular structures is by building course upon course, and by means of scaffolding and rope tackling and climbing, all of which myinveution dispenses with.
I commence with the cappingpiece, bolting two or more courses together, and resting the lowerendin the foundation-plate andin its true position centrally. The three-part clamp is then secured around the upper end of the lower course, letting it bear up under the edge of the course above it. By now turning the cranks Gr (while the load is yet light) the structure is raised about half an inch higher than will admit of introducing another course of plates. After the same are secured by temporary bolts, the structure is lowered the half-inch until the structure rests on the foundation-plate. The bolts binding the clamp are then unscrewed, releasing the clamp, and by turning the cranks G the nuts arelowered, allowing the clamp to descend until it can be again adjusted for another lift, always taking hold under the edge on the lower end of the course above, giving a good support for the structure on the clamp while the work of raising the structure is proceeding.
The clamp being lowered and readjusted, and the additional plates secured, the workmen on the inside stage and outside platform are busy driving the rivets, so that the whole of the operation is going on at the same time.
If necessary, guy-lines may be attached to the capping and used in case a storm of wind arises. They are, however, hardly required until the structure attains a height of one hundred feet. There is usually a step-ladder riveted on the outside, and the entire height of the structure, so that access can be had to release the guy-lines secured on top of the structure. \Vhen the structure gets heavy the cranks H are used for raising, and the cranks G simply for lowering, the nuts.
Hydraulic pressure may be used, if desired; but I prefer to employ jack-screws, as there is no liability of one shooting far ahead of an- 3. The combination of the bed A, frames 0, withjackscrews D, the platforms K L, sectional clamp M, and nuts I, substantially as and for the purposes herein set forth.
In testimony that I claim the foregoing I have hereunto set my hand this 4th day of March, 1879.
THOS. CRITGHLOW.
Witnesses:
C. L. EVERT, W. T. J OHNSON.
Publications (1)
Publication Number | Publication Date |
---|---|
US214109A true US214109A (en) | 1879-04-08 |
Family
ID=2283513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US214109D Expired - Lifetime US214109A (en) | Improvement in elevating apparatus |
Country Status (1)
Country | Link |
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US (1) | US214109A (en) |
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0
- US US214109D patent/US214109A/en not_active Expired - Lifetime
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