US2494214A - Wrecking bar - Google Patents
Wrecking bar Download PDFInfo
- Publication number
- US2494214A US2494214A US702465A US70246546A US2494214A US 2494214 A US2494214 A US 2494214A US 702465 A US702465 A US 702465A US 70246546 A US70246546 A US 70246546A US 2494214 A US2494214 A US 2494214A
- Authority
- US
- United States
- Prior art keywords
- arms
- rafter
- lever
- wrecking
- spaced
- 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
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/08—Wrecking of buildings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/08—Wrecking of buildings
- E04G2023/085—Wrecking of buildings crowbars specially adapted for wrecking wooden buildings
Definitions
- the invention relates to wrecking bars, particularly adapted for ripping flooring, and has for its object to provide a device of this kind comprising a U-shaped frame adapted to arch and seat on a rafter with its arms beneath a floor board, and a pivoted lever pivoted to the arms, adjacent their forward ends, and having stops for engaging the upper sides of the arms for rocking the U-shaped frame upwardly on the transverse portion of the frame, resting on the upper side of the rafter.
- a further object is to pivot the spaced hooked arms of the lever to the frame arms, and to provide the spaced arms with outwardly extending lugs or stops, adapted to engage the upper sides of the frame arms during a prying operation.
- the hooked arms allow the frame arms to be placed a substantial distance under the floor boards when desired.
- Figure 1 is a side elevation of the wrecking bar, showing the same in position, straddling a rafter.
- Figure 2 is a perspective view of the lower end of the wrecking bar.
- Figure 3 is a vertical longitudinal sectional view through the lower portion of the wrecking bar.
- the numeral I designates a fioor rafter, and 2 transverse boards to be ripped therefrom during a wrecking operation.
- the wrecking bar comprises a U-shaped member 3 formed from spaced arms 4, adapted to be placed under the boards 2, and at opposite sides of the rafter I. Arms 4 are connected together by a transverse member 5, which rests on the upper side of the rafter I, and forms the fulcrum point during a prying operation. By positioning the arms 4 on opposite sides of the rafter l, side displacement is prevented, and at the same time the bar can be moved forwardly towards the work for successive prying operation.
- a wrecking bar which is simple in construction, positive in operation, and one which straddles the rafter and held against lateral displacement or tilting during a prying operation.
- a wrecking bar comprising a rafter supported member, said member comprising spaced bars adapted to be positioned on opposite sides of a rafter in spaced relation thereto, the rear end of said bars being connected together by a transverse member adapted to arch the rafter, the forward ends of said bars being adapted to engage under a floor board on the rafter at opposite sides of the rafter, a lever, said lever having its lower end bifurcated thereby forming spaced arms between which the rafter is received, said lever curving downwardly, forwardly and upwardly and hingedly connected to the spaced bars adjacent their forward ends, said arms of the bifurcated lever being provided with stops means for engagement with the spaced bars and forming means whereby the forward ends of the spaced bars will be forced upwardly against the floor board upon a rearward and downward movement of the handle.
- stop means carried by the spaced arms of the bifurcated end of the lever comprises outwardly extending lugs carried by the outer side of the arms and in the path of the upper sides of the spaced bars.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Description
P. TOWNIL L WRECKING BAR Jan. 10, 1950 -Filed Oct. 10, 1946 f ZN Inventor p952) '7'0wn/a'ZL attorney Patented Jan. 10, 1950 WRECKING BAR Peter Townill, Plainfield, 111.; John Townill administrator of said Peter Townill, deceased Application October 10, 1946, Serial No. 702,465 2 Claims. (Cl. 254131) The invention relates to wrecking bars, particularly adapted for ripping flooring, and has for its object to provide a device of this kind comprising a U-shaped frame adapted to arch and seat on a rafter with its arms beneath a floor board, and a pivoted lever pivoted to the arms, adjacent their forward ends, and having stops for engaging the upper sides of the arms for rocking the U-shaped frame upwardly on the transverse portion of the frame, resting on the upper side of the rafter.
A further object is to pivot the spaced hooked arms of the lever to the frame arms, and to provide the spaced arms with outwardly extending lugs or stops, adapted to engage the upper sides of the frame arms during a prying operation. The hooked arms allow the frame arms to be placed a substantial distance under the floor boards when desired.
With the above and other objects in view the invention resides in the combination and arrangement of parts as hereinafter set forth, shown in the drawing, described and claimed, it being understood that changes in the precise embodiment of the invention may be made within the scope of what is claimed without departing from the spirit of the invention.
In the drawing:
Figure 1 is a side elevation of the wrecking bar, showing the same in position, straddling a rafter.
Figure 2 is a perspective view of the lower end of the wrecking bar.
Figure 3 is a vertical longitudinal sectional view through the lower portion of the wrecking bar.
Referring to the drawing, the numeral I designates a fioor rafter, and 2 transverse boards to be ripped therefrom during a wrecking operation.
The wrecking bar comprises a U-shaped member 3 formed from spaced arms 4, adapted to be placed under the boards 2, and at opposite sides of the rafter I. Arms 4 are connected together by a transverse member 5, which rests on the upper side of the rafter I, and forms the fulcrum point during a prying operation. By positioning the arms 4 on opposite sides of the rafter l, side displacement is prevented, and at the same time the bar can be moved forwardly towards the work for successive prying operation.
Pivotally connected at 6 to the inner sides of the arms 4 are downwardly and upwardly extending U-shaped members I, which U-shaped members terminate in upwardly extended spaced arms 8, connected to the handle member or lever 9 of the device. When the lever 9 is moved in the direction of the arrow a, the outwardly extending lugs It] will engage the upper sides of the arms 4, and a continued movement will rock the frame 3 on the cross member 5, thereby forcing the forward ends of the arms 4 upwardly, for prying the boards 2 from the rafter. It will also be noted that successive operations can be accomplished by simply forcing the frame forwardly on the rafter and moving the lever.
From the above it will be seen that a wrecking bar is provided which is simple in construction, positive in operation, and one which straddles the rafter and held against lateral displacement or tilting during a prying operation.
The invention having been set forth what is claimed as new and useful is:
1. A wrecking bar comprising a rafter supported member, said member comprising spaced bars adapted to be positioned on opposite sides of a rafter in spaced relation thereto, the rear end of said bars being connected together by a transverse member adapted to arch the rafter, the forward ends of said bars being adapted to engage under a floor board on the rafter at opposite sides of the rafter, a lever, said lever having its lower end bifurcated thereby forming spaced arms between which the rafter is received, said lever curving downwardly, forwardly and upwardly and hingedly connected to the spaced bars adjacent their forward ends, said arms of the bifurcated lever being provided with stops means for engagement with the spaced bars and forming means whereby the forward ends of the spaced bars will be forced upwardly against the floor board upon a rearward and downward movement of the handle.
2. A device as set forth in claim 1 wherein the stop means carried by the spaced arms of the bifurcated end of the lever comprises outwardly extending lugs carried by the outer side of the arms and in the path of the upper sides of the spaced bars.
PETER TOWNILL.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 494,417 Cutting Mar. 28, 1893 625,654 Dorman May 23, 1899 1,056,078 Witzig et al. Mar. 18, 1913
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US702465A US2494214A (en) | 1946-10-10 | 1946-10-10 | Wrecking bar |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US702465A US2494214A (en) | 1946-10-10 | 1946-10-10 | Wrecking bar |
Publications (1)
Publication Number | Publication Date |
---|---|
US2494214A true US2494214A (en) | 1950-01-10 |
Family
ID=24821324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US702465A Expired - Lifetime US2494214A (en) | 1946-10-10 | 1946-10-10 | Wrecking bar |
Country Status (1)
Country | Link |
---|---|
US (1) | US2494214A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1219564A1 (en) * | 2001-01-02 | 2002-07-03 | Hans Schuller | Lifting tool for manhole cover or the like |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US494417A (en) * | 1893-03-28 | Implement for dismantling builderss stagings | ||
US625654A (en) * | 1899-05-23 | Device for removing ledgers | ||
US1056078A (en) * | 1912-06-11 | 1913-03-18 | Homer Allen Witzig | Temporary tie-holding device. |
-
1946
- 1946-10-10 US US702465A patent/US2494214A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US494417A (en) * | 1893-03-28 | Implement for dismantling builderss stagings | ||
US625654A (en) * | 1899-05-23 | Device for removing ledgers | ||
US1056078A (en) * | 1912-06-11 | 1913-03-18 | Homer Allen Witzig | Temporary tie-holding device. |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1219564A1 (en) * | 2001-01-02 | 2002-07-03 | Hans Schuller | Lifting tool for manhole cover or the like |
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