US1396398A - Wall-anchor - Google Patents
Wall-anchor Download PDFInfo
- Publication number
- US1396398A US1396398A US342103A US34210319A US1396398A US 1396398 A US1396398 A US 1396398A US 342103 A US342103 A US 342103A US 34210319 A US34210319 A US 34210319A US 1396398 A US1396398 A US 1396398A
- Authority
- US
- United States
- Prior art keywords
- dogs
- anchor
- wall
- anchor body
- gripping
- 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
- 241000282472 Canis lupus familiaris Species 0.000 description 42
- 210000000481 breast Anatomy 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/08—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation
- F16B13/0891—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation with a locking element, e.g. wedge, key or ball moving along an inclined surface of the dowel body
Definitions
- This invention relates to an improved anchoring device, being particularly designed for use as a short wall anchor for anchoring a mining machine to the breastof a mine tunnel, and has as one of its principal objects to provide .an anchor which may be inserted in a hole 1n the mine tunnel breast and then easily and quickly operated to coact with the wall of the hole for securing the anchor therein.
- the invention has as a further pbject to provide an anchor employing gripping dogs, wherein said dogs will be mounted directly upon the anchor body or shank and wherein said shank will be formed to provide an expanding element for spreading the dogs.
- a further object of the invention in this connection is to provide an anchor wherein as the pulling stress upon the anchor body is increased, the gripping dogs will be spread apart with correspondingly increased force for holding the anchor against displacement.
- the invention has as a still further object to provide an operating member for the dogs and wherein said member will also form a clamp acting to hold the dogs upon the anchor body.
- Figure 1 is a side elevation showing my improved anchor inserted in a hole in a mine tunnel breast, this view illustrating the initial position of the parts,
- Fig. 2 is a similar view showing the gripping dogs of Vthe device expanded
- Fig. 3 is a longitudinal sectional view more particularly illustrating the mounting of the dogs
- Fig. et is a perspective view showing the device in detail.
- I employ a preferably cylindrical anchor body 10 provided at its outer end with a hook 11 and formed in the inner end portion of the body at opposite sides thereof are grooves 12. As particularly shown in Fig. 3, these grooves incline laterally and outwardly toward the inner end of the body and define an intervening expanding element 13 at the inner end portion of the body. Leading from the inner ends of the grooves along opposite sides of the body to the outer end thereof are channels 14.
- gripping dogs 15 substantially wedge shaped in cross section and each provided with a plurality of teeth 16, the dogs seating at their inner edges against the bottom walls of the grooves.
- a sub' stantially U-shaped operating member 17 therefor This operating member is prefer-y ably Jformed from a length of suitable resilient material bent into proper shape and is arranged to embrace the anchor body, the arms of said member being freely received within the channels 14.
- the gripping dogs are threaded upon the inner ends of said arms and these arms act to resiliently clamp the dogs within the grooves 12. Consequently, the operating member will serve to retain the dogs in position within the grooves 12 while, as will be at once appreciated, said member may be manipulated for sliding the dogs longitudinally within said grooves.
- the channels 14 are inclined downwardly toward the outer end of the anchor body so that the outer end portion of the operating member will not extend across the bight of the hook 11 so as to interfere with the engagement of a cable with said hook.
- the bend of the operating member 17, at the outer end of said member will engage the hook 11 and 'will thus co'act with the body for limiting the dogs in their movement.
- Accidental displacement of the dogs from within the grooves 12 will thus be prevented so that when the device is being handled or carried about from place to place, the dogs cannot be thrust forwardly out of engagement with the body.
- a hole, as indicated at 18, is first drilled into the breast of a mine tunnel, this hole being preferably about two inches in diameter and twelve inches deep.
- the operating member 17 is then drawn outwardly upon the anchor body to retract the gripping dogs within the deeperV portions of the grooves when the iio anchor body is inserted into the hole.
- the operating member is then shifted inwardly for spreading the gripping dogs outwardly into engagement with the wall ofthe hole the expanding element 13 to coact with the gripping dogs for wedging the dogs apart into binding engagement with the wall of the hole so that the anchor body will then be securely locked in position.
- a cable may be connected with the hook 11 for supporting a mining machine to operate against the mine tunnel breast.
- pull of the cable upon the anchor body will tend to expand the dogs to more firmly lock the anchor against displacement.
- the gripping dogs will be spread apart with correspondingly increased force.A
- To displace the anchor it is simply necessary to strike the outer end of the anchor body and force the body inwardly within the hole. Inward movement of the anchor body will, of course, free the gripping dogs sufficiently to be drawn forwardly within the grooves 12 by the'operating member 17. Consequently, by then pulling outwardly upon said member, the dogs may be retracted when the anchor may b'e pulled from the mine tunnel breast.
- a wall anchor including an anchor body provided with an expanding element, gripping dogs mounted to coact with said element, and an operating member for the dogs connecting the dogs andextending outwardly along the anchor body.
- a wall anchor including an anchor body provided with an expanding element, gripping dogs, and means connecting the dogs and yieldably retaining the dogs upon the anchor body to slidably coact with said element.
- a wall anchor including an anchor body provided with an expanding element, gripping dogs, and a resilient operating member connecting the dogs and yieldably holding the dogs to slidably coact with said element.
- a wall anchor including an anchor body provided with an expanding element, gripping dogs, and a length of material providing a substantially U-shaped operating member for the dogs embracing the anchor body and supporting the dogs to slidably coact with said element.
- a wall anchor including an anchor body provided with an expanding element, gripping dogs mounted to coact with said element and shiftable therealong, and means connecting the dogs and disposed to coact with the anchor body for limiting said shifting movement of the dogs.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
Description
N. K. BOWMAN.
WALL ANCHOR.
APPLICATION FILED 0512.3, my.
Patented NOV. 8, 1921.
PATENT OFFICE.
NEWTON K. BOWMAN, OF NORTH LAWRENCE, OHIO.
WALL-ANCHOR.
Specification of Letters '.Patent.
Patented Nov. 8, 1921.
Application led December 3, 1919. Serial No. 342,103.
To all lwhom t may concern Be it known that I, NEWTON K. BOWMAN, a citizen of the United States, residing at No1-th Lawrence, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in 'Wall-Anchors, ot which the following is a specification.
rThis invention relates to an improved anchoring device, being particularly designed for use as a short wall anchor for anchoring a mining machine to the breastof a mine tunnel, and has as one of its principal objects to provide .an anchor which may be inserted in a hole 1n the mine tunnel breast and then easily and quickly operated to coact with the wall of the hole for securing the anchor therein.
The invention has as a further pbject to provide an anchor employing gripping dogs, wherein said dogs will be mounted directly upon the anchor body or shank and wherein said shank will be formed to provide an expanding element for spreading the dogs.
A further object of the invention in this connection is to provide an anchor wherein as the pulling stress upon the anchor body is increased, the gripping dogs will be spread apart with correspondingly increased force for holding the anchor against displacement.
And the invention has as a still further object to provide an operating member for the dogs and wherein said member will also form a clamp acting to hold the dogs upon the anchor body.
Other and incidental objects will appear hereinafter.
In the drawings:
Figure 1 is a side elevation showing my improved anchor inserted in a hole in a mine tunnel breast, this view illustrating the initial position of the parts,
Fig. 2 is a similar view showing the gripping dogs of Vthe device expanded,
Fig. 3 is a longitudinal sectional view more particularly illustrating the mounting of the dogs, and
Fig. et is a perspective view showing the device in detail.
In carrying the invention into effect, I employ a preferably cylindrical anchor body 10 provided at its outer end with a hook 11 and formed in the inner end portion of the body at opposite sides thereof are grooves 12. As particularly shown in Fig. 3, these grooves incline laterally and outwardly toward the inner end of the body and define an intervening expanding element 13 at the inner end portion of the body. Leading from the inner ends of the grooves along opposite sides of the body to the outer end thereof are channels 14.
Mounted to slide within the grooves 12 are gripping dogs 15 substantially wedge shaped in cross section and each provided with a plurality of teeth 16, the dogs seating at their inner edges against the bottom walls of the grooves. Connecting these dogs is a sub' stantially U-shaped operating member 17 therefor. This operating member is prefer-y ably Jformed from a length of suitable resilient material bent into proper shape and is arranged to embrace the anchor body, the arms of said member being freely received within the channels 14. The gripping dogs are threaded upon the inner ends of said arms and these arms act to resiliently clamp the dogs within the grooves 12. Consequently, the operating member will serve to retain the dogs in position within the grooves 12 while, as will be at once appreciated, said member may be manipulated for sliding the dogs longitudinally within said grooves. In this connection it will be observed that the channels 14 are inclined downwardly toward the outer end of the anchor body so that the outer end portion of the operating member will not extend across the bight of the hook 11 so as to interfere with the engagement of a cable with said hook. Further. it is to be noted that when the dogs are 'shifted along the expanding element 13 away from the hook 11, the bend of the operating member 17, at the outer end of said member, will engage the hook 11 and 'will thus co'act with the body for limiting the dogs in their movement. Accidental displacement of the dogs from within the grooves 12 will thus be prevented so that when the device is being handled or carried about from place to place, the dogs cannot be thrust forwardly out of engagement with the body.
In the practical use of the device a hole, as indicated at 18, is first drilled into the breast of a mine tunnel, this hole being preferably about two inches in diameter and twelve inches deep. The operating member 17 is then drawn outwardly upon the anchor body to retract the gripping dogs within the deeperV portions of the grooves when the iio anchor body is inserted into the hole. The operating member is then shifted inwardly for spreading the gripping dogs outwardly into engagement with the wall ofthe hole the expanding element 13 to coact with the gripping dogs for wedging the dogs apart into binding engagement with the wall of the hole so that the anchor body will then be securely locked in position. Accordingly, as suggested in dotted lines in Figs. 1 andk 2, a cable may be connected with the hook 11 for supporting a mining machine to operate against the mine tunnel breast. In this connection it will be noted that pull of the cable upon the anchor body will tend to expand the dogs to more firmly lock the anchor against displacement. As the pull upon the cable is increased, the gripping dogs will be spread apart with correspondingly increased force.A To displace the anchor it is simply necessary to strike the outer end of the anchor body and force the body inwardly within the hole. Inward movement of the anchor body will, of course, free the gripping dogs sufficiently to be drawn forwardly within the grooves 12 by the'operating member 17. Consequently, by then pulling outwardly upon said member, the dogs may be retracted when the anchor may b'e pulled from the mine tunnel breast. It will accordingly be seen that I provide a particulai-ly effective type of anchor and While I have illustrated the device as a short wall anchor for use in mine tunnels and have so described the device still, the anchor may, of course, be employed wherever found applicable or its use would prove desirable,
Without departing from the spirit of the invention.
Having thus described the invention, what is claimed as new is:
1. A wall anchor including an anchor body provided with an expanding element, gripping dogs mounted to coact with said element, and an operating member for the dogs connecting the dogs andextending outwardly along the anchor body.
2. A wall anchor including an anchor body provided with an expanding element, gripping dogs, and means connecting the dogs and yieldably retaining the dogs upon the anchor body to slidably coact with said element.
3. A wall anchor including an anchor body provided with an expanding element, gripping dogs, and a resilient operating member connecting the dogs and yieldably holding the dogs to slidably coact with said element.
4. A wall anchor including an anchor body provided with an expanding element, gripping dogs, and a length of material providing a substantially U-shaped operating member for the dogs embracing the anchor body and supporting the dogs to slidably coact with said element.
5. A wall anchor including an anchor body provided with an expanding element, gripping dogs mounted to coact with said element and shiftable therealong, and means connecting the dogs and disposed to coact with the anchor body for limiting said shifting movement of the dogs.
In testimony whereof I affix my signature.
NEwToN K. BovvMaN. [Le] Witnesses CHAs. L. BowMAN, CLARA GORGAB.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US342103A US1396398A (en) | 1919-12-03 | 1919-12-03 | Wall-anchor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US342103A US1396398A (en) | 1919-12-03 | 1919-12-03 | Wall-anchor |
Publications (1)
Publication Number | Publication Date |
---|---|
US1396398A true US1396398A (en) | 1921-11-08 |
Family
ID=23340337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US342103A Expired - Lifetime US1396398A (en) | 1919-12-03 | 1919-12-03 | Wall-anchor |
Country Status (1)
Country | Link |
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US (1) | US1396398A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2774273A (en) * | 1953-09-30 | 1956-12-18 | Henry N Olson | Anchor bolt having wedge shaped expander member secured thereto |
US2878668A (en) * | 1956-08-06 | 1959-03-24 | Starling Leslie Robert | Anchor bolt |
US2896494A (en) * | 1956-08-02 | 1959-07-28 | Lerick Lester | Anchor bolt with nut actuated expansion wedges |
US3021745A (en) * | 1958-06-03 | 1962-02-20 | Kerel Ab | Wedge device for anchoring bolts in holes |
US3117483A (en) * | 1959-10-21 | 1964-01-14 | John A Brown | Self anchoring bolt having line contact between the male and female wedge members |
US3216306A (en) * | 1962-02-23 | 1965-11-09 | Glendon W Taylor | Retractable rock hole pin |
FR2374545A1 (en) * | 1976-12-17 | 1978-07-13 | Hilti Ag | EXPANSION ANCHOR |
DE3125457A1 (en) * | 1981-06-29 | 1983-01-20 | Hilti AG, 9494 Schaan | SPREADING DOWEL |
DE3524445A1 (en) * | 1984-07-12 | 1986-07-31 | Helmer, Peter, Dipl.-Ing.Dr.-Ing., 5100 Aachen | Dowel |
DE4423234A1 (en) * | 1994-07-02 | 1996-01-04 | Fischer Artur Werke Gmbh | Fastener |
DE4428799A1 (en) * | 1994-08-13 | 1996-02-15 | Fischer Artur Werke Gmbh | Fastener element for anchoring in building component |
US5562376A (en) * | 1994-04-21 | 1996-10-08 | Fischerwerke, Arthur Fischer Gmbh & Co Kg | Nail-like fixing element with expansion wedge |
US5741100A (en) * | 1994-11-23 | 1998-04-21 | Fischerwerke, Artur Fischer Gmbh & Co. Kg | Expansible fixing member |
US20050135876A1 (en) * | 2003-01-27 | 2005-06-23 | Yu-Cheng Lin | Connection of tool handle with tool bit |
-
1919
- 1919-12-03 US US342103A patent/US1396398A/en not_active Expired - Lifetime
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2774273A (en) * | 1953-09-30 | 1956-12-18 | Henry N Olson | Anchor bolt having wedge shaped expander member secured thereto |
DE1225449B (en) * | 1956-08-02 | 1966-09-22 | Lester Lerick | Expanding wedge anchor inserted into a borehole with expansion members arranged coaxially around an anchor bolt |
US2896494A (en) * | 1956-08-02 | 1959-07-28 | Lerick Lester | Anchor bolt with nut actuated expansion wedges |
US2878668A (en) * | 1956-08-06 | 1959-03-24 | Starling Leslie Robert | Anchor bolt |
US3021745A (en) * | 1958-06-03 | 1962-02-20 | Kerel Ab | Wedge device for anchoring bolts in holes |
US3117483A (en) * | 1959-10-21 | 1964-01-14 | John A Brown | Self anchoring bolt having line contact between the male and female wedge members |
US3216306A (en) * | 1962-02-23 | 1965-11-09 | Glendon W Taylor | Retractable rock hole pin |
FR2374545A1 (en) * | 1976-12-17 | 1978-07-13 | Hilti Ag | EXPANSION ANCHOR |
DE3125457A1 (en) * | 1981-06-29 | 1983-01-20 | Hilti AG, 9494 Schaan | SPREADING DOWEL |
DE3524445A1 (en) * | 1984-07-12 | 1986-07-31 | Helmer, Peter, Dipl.-Ing.Dr.-Ing., 5100 Aachen | Dowel |
US5562376A (en) * | 1994-04-21 | 1996-10-08 | Fischerwerke, Arthur Fischer Gmbh & Co Kg | Nail-like fixing element with expansion wedge |
DE4423234A1 (en) * | 1994-07-02 | 1996-01-04 | Fischer Artur Werke Gmbh | Fastener |
DE4428799A1 (en) * | 1994-08-13 | 1996-02-15 | Fischer Artur Werke Gmbh | Fastener element for anchoring in building component |
US5741100A (en) * | 1994-11-23 | 1998-04-21 | Fischerwerke, Artur Fischer Gmbh & Co. Kg | Expansible fixing member |
US20050135876A1 (en) * | 2003-01-27 | 2005-06-23 | Yu-Cheng Lin | Connection of tool handle with tool bit |
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