US3358545A - Clamping nut - Google Patents
Clamping nut Download PDFInfo
- Publication number
- US3358545A US3358545A US480689A US48068965A US3358545A US 3358545 A US3358545 A US 3358545A US 480689 A US480689 A US 480689A US 48068965 A US48068965 A US 48068965A US 3358545 A US3358545 A US 3358545A
- Authority
- US
- United States
- Prior art keywords
- nut
- bolt
- threaded
- adjacent
- body portion
- 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
- 239000000463 material Substances 0.000 claims description 8
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 description 9
- 238000009825 accumulation Methods 0.000 description 4
- 230000035508 accumulation Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002023 wood 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
- F16B37/00—Nuts or like thread-engaging members
-
- 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
- F16B37/00—Nuts or like thread-engaging members
- F16B37/16—Wing-nuts
Definitions
- Unscrewing the nut from a thread system that has been contaminated in this fashion can easily produce either a jamming action interfering with the removal of the nut, or an abrasive action that will progressively wear away the interengaged threading on the bolt and the nut.
- This invention recognizes the inevitability of these conditions, and provides a conformation for the end of the nut which will serve to remove the accumulations of foreign material from the bolt threads as the nut is unscrewed. This arrangement makes it unnecessary for the nut to ride over the foreign particles, and thus reduces the amount of torque necessary to rotate the nut.
- the formation of the body of the nut is such as to conduct the foreign particles removed from the bolt threads away from the area adjacent to the bolt so that they do not become reembedded.
- FIGURE 1 is a view showing the conventional securing of a form panel as a concrete structure is progressively developed, and showing the securing system of which the preferred form of the nut is a component.
- FIGURE 2 is an enlarged section of the form tie system shown in FIGURE 1.
- FIGURE 3 is an end view ofthe nut shown in FIG- URE 2.
- FIGURE 4 is a sectional of the plane 4-4 of FIG- URE 3.
- FIGURE 5 is a section of the plane 5-5 of FIG- URE 3.
- FIGURE 6 is a section of the plane 6-6 of FIG- URE 3.
- FIGURE 7 is a section of the plane 7-7 of FIGURE 6.
- the form structure generally indicated at 10 is shown in the usual position of installation for progressively developing a concrete structure 11.
- the anchor rods 12 are embedded in each pour to form securing points for the attachment of bolts as shown at 13.
- These traverse the form structure 10, and are secured by wing nuts 14 which usually bear against brackets as shown at 15, for adequate transfer of stresses over to the wood 3,358,545 Patented Dec. 19, 1967 structure of the form 10.
- the wing nuts 14 are unscrewed from the bolts'13.
- the projecting threaded end 16 of the bolt 13 forms an inviting place for the accumulation of small quantities of concrete intended for deposit to the right of the form structure 10, and the removal of these foreign particles without jamming the threads of the bolt-andnut is the purpose of the present invention.
- these foreign particles tend to accumulate as shown at 17 in FIGURE 2. If not removed, these particles will tend to find their way between the bolt and the nut.
- the nut 14 is preferably provided with wings 18 and 19 which form diametrically opposite handles for tightening and loosening the nut.
- the inside surface of the nut is threaded as shown in 20, FIGURE 5, and the inner end of the nut 21 forms a bearing'surface normally engaging the bracket 15 for transfer of clamping forces.
- the opposite end of the body portion 22 of the nut is preferably provided with axially-extending portions as shown at 23 and 24 on opposite sides of the nut for defining a groove 25 for receiving a transverse locking-pin.
- the conformation is commonly known as castellated.
- the thread system of the bolt and the nut may be single or multiple, and the number of threads constituting the thread system will determine the number of points of emergence of a thread from the outer end of the body portion 22.
- This invention is particularly concerned with the conformation of the surfaces of the body portion at the point of emergence of the one or more threads.
- the portion of the nut indicated at 26 in FIGURE 6 is in part defined by a face intersecting the surfaces forming the thread system of the nut, and is a part of the ridge on the nut extending into the corresponding groove between adjacent ridges of the bolt threading. This face extends across the interval between the adjacent thread ridges of the bolt, and forms a cleaning surface extending into this space.
- this face forms an acute angle with the crest and root surfaces of the threads such as, for example, the crests of .the threads indicated at 20 in FIGURE 7.
- This conformation produces the effect of a chisel extending down into the thread grooves of the bolt to progressively remove any foreign particles encountered as the nut is unscrewed.
- the rotation corresponding to unscrewing will normally be counterclockwise, as viewed in FIGURES 3 and 7.
- the adjacent portions of the surface defining the outer end of the body 22 of the nut are generally convex disposed in such a manner as to facilitate the flow of foreign particles away from the threaded area so that they can drop off, rather than become re-embedded.
- a body portion having a threaded inside surface, and a transverse bearing surface at one end of said body portion, the opposite end thereof having at least one portion having a face intersecting said threaded surface and extending between adjacent threads to form a cleaning surface extending into the space between adjacent thread portions on said bolt, said face forming an acute angle within the material of said nut, with the adjacent portion of said threaded inside surface pointing in the direction of movement of said nut at said face corresponding to loosening the same,
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Bolts, Nuts, And Washers (AREA)
Description
Dec. 19, 1967 c. I. WILLIAMS 3,358,545
CLAMPING NUT Filed Aug. 18, 1965 m/vfimbfi CHESTER WILLIAMS 7 United States Patent 3,358,545 CLAMPING NUT Chester I. Williams, 347 Greenbriar SE., Grand Rapids, Mich. 49506 Filed Aug. 18, 1965, Ser. No. 480,689 3 Claims. (Cl. 85-32) This invention relates to the construction of nuts that must be repeatedly unscrewed from the ends of bolts under conditions favoring the accumulation of foreign material on the bolt threads. The preferred form of the invention has been developed as a nut forming a component of a tie system for securing forms preparatory to pouring concrete. While the mass of the concrete is poured on the opposite side of the form from the clamping nut, the liquid concrete is often spilled about in a random fashion during the pouring process. Swinging overhead buckets of liquid concrete will often drip substantial quantities during the passage from the source to the point of deposit, and anything tending to jostle the bucket will aggravate the situation. Some of this material is bound to hit the ends of the securing bolts, and has adaquate time to harden in this position before the clamping nut is normally removed. This is only one source of possible accumulations of foreign material on the bolt. Rock particles, sand, and practically anything imaginable can easily find its way into the grooves formed by the bolt threads. Unscrewing the nut from a thread system that has been contaminated in this fashion can easily produce either a jamming action interfering with the removal of the nut, or an abrasive action that will progressively wear away the interengaged threading on the bolt and the nut.
This invention recognizes the inevitability of these conditions, and provides a conformation for the end of the nut which will serve to remove the accumulations of foreign material from the bolt threads as the nut is unscrewed. This arrangement makes it unnecessary for the nut to ride over the foreign particles, and thus reduces the amount of torque necessary to rotate the nut. The formation of the body of the nut is such as to conduct the foreign particles removed from the bolt threads away from the area adjacent to the bolt so that they do not become reembedded.
The several features of the invention will be analyzed in further detail through discussion of the particular embodiment illustrated in the accompanying drawing. In the drawing:
FIGURE 1 is a view showing the conventional securing of a form panel as a concrete structure is progressively developed, and showing the securing system of which the preferred form of the nut is a component.
FIGURE 2 is an enlarged section of the form tie system shown in FIGURE 1.
FIGURE 3 is an end view ofthe nut shown in FIG- URE 2.
FIGURE 4 is a sectional of the plane 4-4 of FIG- URE 3.
FIGURE 5 is a section of the plane 5-5 of FIG- URE 3.
FIGURE 6 is a section of the plane 6-6 of FIG- URE 3.
FIGURE 7 is a section of the plane 7-7 of FIGURE 6.
Referring to FIGURES 1 and 2, the form structure generally indicated at 10 is shown in the usual position of installation for progressively developing a concrete structure 11. During the successive pours of concrete, the anchor rods 12 are embedded in each pour to form securing points for the attachment of bolts as shown at 13. These traverse the form structure 10, and are secured by wing nuts 14 which usually bear against brackets as shown at 15, for adequate transfer of stresses over to the wood 3,358,545 Patented Dec. 19, 1967 structure of the form 10. After the concrete has set, the wing nuts 14 are unscrewed from the bolts'13. The projecting threaded end 16 of the bolt 13 forms an inviting place for the accumulation of small quantities of concrete intended for deposit to the right of the form structure 10, and the removal of these foreign particles without jamming the threads of the bolt-andnut is the purpose of the present invention. As the nut is unscrewed, these foreign particles tend to accumulate as shown at 17 in FIGURE 2. If not removed, these particles will tend to find their way between the bolt and the nut.
The nut 14 is preferably provided with wings 18 and 19 which form diametrically opposite handles for tightening and loosening the nut. The inside surface of the nut is threaded as shown in 20, FIGURE 5, and the inner end of the nut 21 forms a bearing'surface normally engaging the bracket 15 for transfer of clamping forces. The opposite end of the body portion 22 of the nut is preferably provided with axially-extending portions as shown at 23 and 24 on opposite sides of the nut for defining a groove 25 for receiving a transverse locking-pin. The conformation is commonly known as castellated.
The thread system of the bolt and the nut may be single or multiple, and the number of threads constituting the thread system will determine the number of points of emergence of a thread from the outer end of the body portion 22. This invention is particularly concerned with the conformation of the surfaces of the body portion at the point of emergence of the one or more threads. The portion of the nut indicated at 26 in FIGURE 6 is in part defined by a face intersecting the surfaces forming the thread system of the nut, and is a part of the ridge on the nut extending into the corresponding groove between adjacent ridges of the bolt threading. This face extends across the interval between the adjacent thread ridges of the bolt, and forms a cleaning surface extending into this space. It is important that this face forms an acute angle with the crest and root surfaces of the threads such as, for example, the crests of .the threads indicated at 20 in FIGURE 7. This conformation produces the effect of a chisel extending down into the thread grooves of the bolt to progressively remove any foreign particles encountered as the nut is unscrewed. The rotation corresponding to unscrewing will normally be counterclockwise, as viewed in FIGURES 3 and 7. It is preferable that the adjacent portions of the surface defining the outer end of the body 22 of the nut are generally convex disposed in such a manner as to facilitate the flow of foreign particles away from the threaded area so that they can drop off, rather than become re-embedded.
The particular embodiments of the present invention which have been illustrated and discussed herein are for illustrative purposes only and are not to be considered as a limitation upon the scope of the appended claims. In these claims, it is my intent to claim the entire invention disclosed herein, except as I am limited by the prior art.
I claim:
1. A clamping nut for engaging a projecting threaded end of a bolt of a form-securing system, said nut comprising:
a body portion having a threaded inside surface, and a transverse bearing surface at one end of said body portion, the opposite end thereof having at least one portion having a face intersecting said threaded surface and extending between adjacent threads to form a cleaning surface extending into the space between adjacent thread portions on said bolt, said face forming an acute angle within the material of said nut, with the adjacent portion of said threaded inside surface pointing in the direction of movement of said nut at said face corresponding to loosening the same,
. 4 7 whereby foreign material is cleared from the thread References Cited end of said bolt as said nut is unscrewed. I UNITED STATES PATENTS 2. A nut as defined 1n claun 1, wherein said opposite 22 5 1 7 end has a plurality of peripherally spaced portions pro- O 4/ 880 Ibbotson et a1 85 32 vided with said faces, each of said portions being an axial 1339578 5/1920 9 85-42 extension of said body portion having a groove for a 1 2 5 3 locking pin.
3. A nut as defined in claim 1, wherein the surfaces ,7 v of said body portion adjacent to said face are convex and CARL r Pr'mary Exmmer disposed to conduct foreign particles away from said bolt 10 R. S. BRITTS, Assistant Examiner. as said nut is unscrewed.
Claims (1)
1. A CLAMPING NUT FOR ENGAGING A PROJECTING THREADED END OF A BOLT OF A FORM-SECURING SYSTEM, SAID NUT COMPRISING: A BODY PORTION HAVING A THREADED INSIDE SURFACE, AND A TRANSVERSE BEARING SURFACE AT ONE END OF SAID BODY PORTION, THE OPPOSITE END THEREOF HAVING AT LEAST ONE PORTION HAVING A FACE INTERSECTING SAID THREADED SURFACE AND EXTENDING BETWEEN ADJACENT THREADS TO FORM A CLEANING SURFACE EXTENDING INTO THE SPACE BETWEEN ADJACENT THREAD PORTIONS ON SAID BOLT, SAID FACE FORMING AN ACUTE ANGLE WITHIN THE MATERIAL OF SAID NUT, WITH THE ADJACENT PORTION OF SAID THREADED INSIDE SURFACE POINTING IN THE DIRECTION OF MOVEMENT OF SAID NUT AT SAID FACE CORRESPONDING TO LOOSENING THE SAME, WHEREBY FOREIGN MATERIAL IS CLEARED FROM THE THREAD END OF SAID BOLT AS SAID NUT IS UNSCREWED.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US480689A US3358545A (en) | 1965-08-18 | 1965-08-18 | Clamping nut |
GB35486/66A GB1160296A (en) | 1965-08-18 | 1966-08-08 | Clamping Nut |
BR182112/66A BR6682112D0 (en) | 1965-08-18 | 1966-08-16 | TIGHTENING NUT |
DE1966W0042221 DE1684519B2 (en) | 1965-08-18 | 1966-08-16 | WING NUT |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US480689A US3358545A (en) | 1965-08-18 | 1965-08-18 | Clamping nut |
Publications (1)
Publication Number | Publication Date |
---|---|
US3358545A true US3358545A (en) | 1967-12-19 |
Family
ID=23908952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US480689A Expired - Lifetime US3358545A (en) | 1965-08-18 | 1965-08-18 | Clamping nut |
Country Status (4)
Country | Link |
---|---|
US (1) | US3358545A (en) |
BR (1) | BR6682112D0 (en) |
DE (1) | DE1684519B2 (en) |
GB (1) | GB1160296A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5054163A (en) * | 1991-01-04 | 1991-10-08 | John Sterling Corporation | Bottom pivot assembly for folding doors |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US226450A (en) * | 1880-04-13 | ibbotson | ||
US1339578A (en) * | 1916-06-16 | 1920-05-11 | Mortimer C Rosenfeld | Faucet-supporting means |
US1589063A (en) * | 1925-04-14 | 1926-06-15 | Fondo Anthony | Fastening means |
US2066541A (en) * | 1936-04-14 | 1937-01-05 | Richmond Screw Anchor Co Inc | Clamp threaded connection |
-
1965
- 1965-08-18 US US480689A patent/US3358545A/en not_active Expired - Lifetime
-
1966
- 1966-08-08 GB GB35486/66A patent/GB1160296A/en not_active Expired
- 1966-08-16 BR BR182112/66A patent/BR6682112D0/en unknown
- 1966-08-16 DE DE1966W0042221 patent/DE1684519B2/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US226450A (en) * | 1880-04-13 | ibbotson | ||
US1339578A (en) * | 1916-06-16 | 1920-05-11 | Mortimer C Rosenfeld | Faucet-supporting means |
US1589063A (en) * | 1925-04-14 | 1926-06-15 | Fondo Anthony | Fastening means |
US2066541A (en) * | 1936-04-14 | 1937-01-05 | Richmond Screw Anchor Co Inc | Clamp threaded connection |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5054163A (en) * | 1991-01-04 | 1991-10-08 | John Sterling Corporation | Bottom pivot assembly for folding doors |
Also Published As
Publication number | Publication date |
---|---|
GB1160296A (en) | 1969-08-06 |
BR6682112D0 (en) | 1973-02-20 |
DE1684519A1 (en) | 1969-11-06 |
DE1684519B2 (en) | 1977-02-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69920371T2 (en) | Helical masonry anchor with raised anchorage | |
DE2206537B2 (en) | Welded construction, in particular holding element for track rails | |
EP1907714B1 (en) | Thread-cutting concrete anchor | |
US3358545A (en) | Clamping nut | |
DE1921868A1 (en) | Self-locking fastening screw with external thread | |
US4889460A (en) | Thread cleaning nut | |
DE2326713C3 (en) | Fastening element for attaching components to a wall or the like | |
EP1249310A2 (en) | Holding disc for flap grinding wheel | |
DE3531998A1 (en) | Anchor rail which can be embedded in concrete or the like | |
DE102011010526A1 (en) | Undercut anchor has anchor rod which is threaded at the front end of base of borehole, compression nut fixedly connected to anchor rod, and a cylindrical expansion sleeve having two transverse slots | |
DE3641836A1 (en) | Self-securing fastening element | |
EP0392336B1 (en) | Arrangement used while erecting concrete shutterings | |
DE821444C (en) | Screw locking | |
DE2306087A1 (en) | SCREW ELEMENT SUCH AS HEAD SCREW OR MOTHER | |
DE7230171U (en) | DEVICE FOR FIXING AN ANCHOR SLEEVE TO A FORMWORK | |
DE2501434B2 (en) | Cover for a manhole | |
DE1221081B (en) | Roll for roll crusher | |
DE102010004466A1 (en) | Mounting system for mounting floor construction to concrete floor, has anchorage element anchored in concrete base and comprising threaded hole in which ends of threaded rods are screwed, where anchorage element has base body | |
US2006461A (en) | Lock bolt | |
DE693489C (en) | Screw locking | |
DE541459C (en) | Lock for centrifugal molds | |
DE398745C (en) | Nut lock | |
DE477717C (en) | Spline bolt connection | |
DE237663C (en) | ||
DE1603762C (en) | Key for loosening screw connections |