Abstract:
A masonry block wall bracing wall anchor having a threaded portion connected to an intermediate portion of the wall anchor with the intermediate portion having a vertical cross-section generally sized to fit between and substantially bridge the vertical thickness of a bed joint between two successive courses of masonry blocks and the threaded portion available for connecting by means of a washer and a nut to a side support that braces a masonry block wall during construction. The preferred embodiment has an upper transverse fracture groove and a lower transverse fracture groove through which after completion of the wall selectively can propagate a fracture line when the masonry block wall is completed. The fracture grooves can facilitate selective fracturing of the wall bracing wall anchor thereby allowing removal of a protruding threaded portion of the anchor that extends beyond the outer face of the masonry wall.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
   Not applicable 
   STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT 
   Not Applicable 
   REFERENCE TO SEQUENCE LISTING, A TABLE, OR A COMPUTER PROGRAM LISTING COMPACT DISK APPENDIX 
   Not Applicable 
   BACKGROUND OF THE INVENTION 
   In modern society, efforts are ongoing to safeguard construction sites to prevent injuries to workers and lessen damage to components of the construction project. Often during its construction, a masonry block wall  2  on a construction site is braced by one or more angled side supports  28  to prevent lateral movement and potential collapse of the wall to the side. 
   A commonly used wall anchor in a bed joint  12  of a masonry block wall  2  for attaching of an angled side support  28  is a J-bolt wall anchor  18  having a threaded portion  20  joined to an intermediate cylindrical portion  22  that in turn is joined to an angled cylindrical portion  24 . The j-bolt wall anchor  18  often has a diameter greater than the vertical thickness of the bed joint  12  between two successive courses of masonry block  4  with each block having one or more vertical cells  6 ; and in such instances, the j-bolt wall anchor is often placed in and through a mason enlarged portion of the bed joint with the angled cylindrical portion  22  retained within a hollow vertical cell of a block by a cementious mixture or a concrete aggregate slurry that is poured into a group of substantially vertically aligned vertical cells of a plurality of successive courses of masonry blocks and with the threaded portion protruding perpendicularly through the enlarged portion of the bed joint and extending outwardly sufficiently from an outer face of the wall for attaching to an upper wall mounting bracket  30  of an angled side support  28  by means of a washer  38  and a nut  40 . The mason enlarged portion of the bed joint  12  includes an anchor receiving channel  10  chipped with a mason&#39;s hammer or other suitable tool in the lower edge of an overlying channeled masonry block  8  or chipped in the upper edge of an underlying masonry block to provide clearance in the channel and the bed joint for the emplacement of the intermediate cylindrical portion  22  of the j-bolt wall anchor  18 . 
   Often a job specification for a masonry wall under construction requires the emplacing of one or more vertical rebar members  16  vertically through and within a group of one or more substantially vertically aligned vertical cells  6  of a plurality of successive courses of masonry blocks with the rebar members secured therein by a cementious mixture or a concrete aggregate slurry that is poured into the aligned vertical cells and that encircles the rebar members. 
   Often after the wall  2  is built, the mason or another worker is required to remove the J-bolt wall anchor  18  from the wall or to cut off the protruding threaded portion  20  of the J-bolt wall anchor with either process likely resulting in some damage to the wall that then must be repaired. Under the prior art, often the j-bolt wall anchor  18  would be cut off by a worker using an acetylene torch or using a powered hot saw resulting in damage to the wall that then would require significant labor time and expense to fix. 
   An object of the invention is to provide a masonry block wall bracing wall anchor that when the wall is completed can have its protruding threaded end portion quickly broken off by use of a simple hand tool such as a mason&#39;s hammer or a small sledge hammer with little or no damage resulting to the outer face of the wall. Use of the present invention a masonry block wall bracing wall anchor in the construction of a masonry block wall can save labor time and expense especially during removal of the protruding portions of the invention after the wall is completed over the labor time and expense necessary to remove or cut off the protruding portions of prior art wall anchors such as j-bolt wall anchors. 
   BRIEF SUMMARY OF THE INVENTION 
   The present invention is an improved block wall bracing wall anchor  42 ′,  54 ,  68 ,  82 , or  98  each respectively having a threaded end portion  44 ,  56 ,  70 ,  84 , or  100  that after a wall  2  is completed can be broken off flush to or recessed in from an outer face of the wall and that is more convenient and easier to use than prior art wall anchors such as j-bolt wall anchors. 
   A principal objective of the improved masonry block wall bracing wall anchor is to help a mason or other person who during construction of a masonry block wall braces the wall using one or more side supports each attached respectively to a masonry block wall bracing wall anchor to more easily remove a protruding threaded end portion of each wall anchor once the wall is completed. 
   The invention also is designed to save time and labor during the building of the wall. When emplacing the invention in a bed joint, the mason does not need to make an anchor receiving channel in any of the masonry blocks placed in the wall because the portion of the invention that is retained in the bed joint is thinner than the vertical thickness of the bed joint. 
   A further object of the invention is making available to masons or other users, a masonry block wall bracing wall anchor that is durable, easy to use, easy to secure in a block wall, and is inexpensive to manufacture. 
   The invention is a masonry block wall bracing wall anchor designed principally for emplacement in and through a bed joint of a masonry block wall; the bracing wall anchor has a threaded end portion connected to an intermediate portion with the intermediate portion having a vertical cross-section generally sized to fit between and substantially bridge the vertical thickness of a bed joint between two successive courses of masonry blocks in a masonry block wall and the threaded end portion is available for connecting by means of a washer and a nut to a side support that braces the masonry block wall during construction. 
   The preferred embodiment of the wall anchor invention has an upper transverse fracture groove and a lower transverse fracture groove through which after completion of the wall, a mason or other worker by means of a hammer or other suitable tool can selectively propagate a fracture line thereby splitting the wall anchor into two major pieces. 
   After construction of the wall is completed, the fracture grooves can facilitate selective fracturing of the wall bracing wall anchor thereby allowing removal of a protruding threaded portion of the anchor that extends beyond the outer face of the masonry wall. 
   Additional and various other objects and advantages attained by the invention will become more apparent as the specification is read and the accompanying figures are reviewed. 

   
     BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING 
       FIG. 1  is a perspective view of a prior art masonry block wall  2  having two prior art angled side supports  28  attached; 
       FIG. 2  is a perspective view of a prior art j-bolt wall anchor  18 ; 
       FIG. 3  is an enlarged, partially exploded, partial view of the prior art masonry block wall  2  as indicated in  FIG. 1  showing the placement of a prior art j-bolt wall anchor  18  in and through an enlarged portion of a bed joint  12  of the wall and the j-bolt wall anchor&#39;s cooperating relationship with an upper wall mounting bracket  30  of the side support  28 , a washer  38 , and a nut  40 ; 
       FIG. 4  is a partial view of the prior art masonry wall  2  as viewed from direction  4 - 4  in  FIG. 3  with the upper wall mounting bracket, the side support, the washer, and the nut not shown and showing a prior art channeled masonry block  8  having an anchor receiving channel  10  resulting in the enlarged portion of the bed joint  12 ; 
       FIG. 5  is a side view of a first embodiment  42  of the present invention, a block wall bracing wall anchor; 
       FIG. 6  is a top view of the first embodiment  42  of the block wall bracing wall anchor; 
       FIG. 7  is a side view of a second embodiment  42 ′ of the block wall bracing wall anchor; 
       FIG. 8  is a top view of the second embodiment  42 ′ of the block wall bracing wall anchor; 
       FIG. 9  is a perspective view of the second embodiment  42 ′ of the block wall bracing wall anchor; 
       FIG. 10  is a side view of a preferred third embodiment  54  of the block wall bracing wall anchor; 
       FIG. 11  is a top view of the preferred third embodiment  54  of the block wall bracing wall anchor; 
       FIG. 12  is a perspective view of the preferred third embodiment  54  of the block wall bracing wall anchor; 
       FIG. 13A  is a partial side view of the preferred third embodiment  54  of the block wall bracing wall anchor showing a side profile for squared fracture grooves  62  and  64 ; 
       FIG. 13B  is a partial side view of the preferred third embodiment  54  of the block wall bracing wall anchor showing an alternative side profile for skewed left V-shaped fracture grooves  62   b  and  64   b;    
       FIG. 13C  is a partial side view of the preferred third embodiment  54  of the block wall bracing wall anchor showing an alternative side profile for skewed right V-shaped fracture grooves  62   c  and  64   c;    
       FIG. 13D  is a partial side view of the preferred third embodiment  54  of the block wall bracing wall anchor showing an alternative side profile for U-shaped fracture grooves  62   d  and  64   d;    
       FIG. 13E  is a partial side view of the preferred third embodiment  54  of the block wall bracing wall anchor showing an alternative side profile for symmetrical V-shaped fracture grooves  62   e  and  64   e;    
       FIG. 14  is a partial perspective view of a masonry block wall showing the preferred third embodiment  54  of the block wall bracing wall anchor bracketed between an upper edge of a relative lower course masonry block  4   a  and a lower edge of a relative succeeding upper course masonry block  4   b;    
       FIG. 15  is an enlarged, partial view of the masonry block wall as indicated in  FIG. 14  showing the placement of a bracing wall anchor  54  in and through a bed joint  12  of the wall and showing a vertical rebar member  16  threaded through an eye  60  of the bracing wall anchor; 
       FIG. 16  is a partial sectional view of the masonry wall and the bracing wall anchor  54  as viewed from direction  16 - 16  in  FIG. 15  illustrating with two arrows A and B the upward and downward directions that when the wall is completed can be applied by a worker to a hammer (not shown) in striking an outer free end of a threaded end portion  56  to fracture the wall anchor through the fracture grooves  62  and  64  into two pieces; 
       FIG. 17  is a partial sectional view of the masonry wall and the bracing wall anchor  54  as viewed from direction  16 - 16  in  FIG. 15  showing the threaded end portion  56  broken off; 
       FIG. 18  is an exploded side view of a fourth embodiment  68  of the wall bracing wall anchor; 
       FIG. 19  is a top view of the fourth embodiment  68  of the wall bracing wall anchor; 
       FIG. 20  is a perspective view of the fourth embodiment  68  of the block wall bracing wall anchor; 
       FIG. 21A  is a partial side view of the fourth embodiment  68  of the block wall bracing wall anchor showing a side profile for squared fracture grooves  76  and  78 ; 
       FIG. 21B  is a partial side view of the fourth embodiment  68  of the block wall bracing wall anchor showing an alternative skewed left V-shaped fracture grooves  76   b  and  78   b  side profile; 
       FIG. 21C  is a partial side view of the fourth embodiment  68  of the block wall bracing wall anchor showing an alternative skewed right V-shaped fracture grooves  76   c  and  78   c  side profile; 
       FIG. 21D  is a partial side view of the fourth embodiment  68  of the block wall bracing wall anchor showing an alternative U-shaped fracture grooves  76   d  and  78   d  side profile; 
       FIG. 21E  is a partial side view of the fourth embodiment  68  of the block wall bracing wall anchor showing an alternative symmetrical V-shaped fracture grooves  76   e  and  78   e  side profile; 
       FIG. 22  is side view of a fifth embodiment  82  of the wall bracing wall anchor; 
       FIG. 23  is a top view of the fifth embodiment  82  of the wall bracing wall anchor; 
       FIG. 24  is a perspective view of the fifth embodiment  82  of the block wall bracing wall anchor; 
       FIG. 25  is side view of a sixth embodiment  98  of the wall bracing wall anchor; 
       FIG. 26  is a top view of the sixth embodiment  98  of the wall bracing wall anchor; and 
       FIG. 27  is a perspective view of the sixth embodiment  98  of the block wall bracing wall anchor. 
   

   DETAILED DESCRIPTION OF THE INVENTION 
   Referring to  FIGS. 1 through 27 , the present invention is a novel improved masonry block wall bracing wall anchor  42 ,  42 ′,  54 ,  68 ,  82 , or  98 . 
   Referring to  FIGS. 1 and 3 , a masonry block wall  2  under the prior art could be braced against sideward movement by one or more angled side supports  28  removably attached between the wall and a floor slab  26  or other suitable footing with each support having an upper wall mounting bracket  30  pivotally linked to an intermediate telescopically adjustable assembly  34  that in turn is pivotally linked to a lower mounting bracket  36  and the lower mounting bracket removably attached to the floor slab or other suitable footing.  FIG. 2  shows a prior art j-bolt wall anchor  18  having a threaded portion  20  joined to an intermediate cylindrical portion  22  that in turn is joined to an angled cylindrical portion  24 . 
     FIGS. 3 and 4  each shows a portion of a masonry block wall  2  having at least one bed joint  12  and at least one head joint  14  and each shows a j-bolt wall anchor  18  in a bed joint  12  of the wall and each shows the j-bolt wall anchor protruding into an anchor receiving channel  10  of a channeled masonry block  8  that replaces one relative succeeding upper course masonry block  4   b .  FIG. 4  also shows the j-bolt wall anchor  18  resting on the upper edge of a relative lower course masonry block  4   a.    
     FIG. 3  also shows in a partially exploded view how the threaded portion  20  can be used with a washer  38  and nut  40  to clamp an upper wall mounting bracket  30  of the side support  28  to the wall  2  by placing the threaded portion in and through a receiving slot  32  of the upper wall mounting bracket and by engaging and tightening of the washer and nut onto the threaded portion. 
     FIG. 5  shows a first embodiment  42  of a masonry block wall bracing anchor that is intended for emplacing in a masonry block wall  2  preferably in and through a bed joint  12  of the masonry block wall and removably attached by a washer and a nut to a side support such as an upper wall mounting bracket  30  of a prior art side support  28 . The first embodiment  42  preferably is formed by forging and rolling from rod stock of low to mid-grade steel, but alternatively the embodiment could be machined from appropriate stock material. The first embodiment  42  has a threaded end portion  44 , preferably having rolled threads, joined to an intermediate body portion  46  having flat and parallel upper and lower surfaces and preferably having a cross-sectional width greater than the diameter of the threaded end portion and a cross-sectional thickness less than the diameter of the threaded end portion, and the intermediate body portion joined to an opposite end portion  48 . The first embodiment  42  is intended for use as a masonry block wall bracing wall anchor for emplacing within a masonry block wall  2  having a plurality of bed joints  12  between two successive courses of masonry blocks for the attaching of a side support  28 . 
   The first embodiment  42  comprises a threaded end portion  44  joined to an intermediate body portion  46  having a vertical cross-section generally sized to fit within and substantially bridge the vertical thickness of a bed joint between two successive courses of masonry blocks in a masonry block wall, said intermediate body portion having flat and parallel upper and lower surfaces, and said intermediate body portion joined to an opposite end portion  48 . Preferably, the opposite end portion  48  is angled away from the longitudinal axis of the intermediate body portion  46 . 
   As shown in  FIGS. 7 ,  8 , and  9 , a second embodiment  42 ′ of a masonry block wall bracing wall anchor comprises a threaded end portion  44  joined to an intermediate body portion  46  having a vertical cross-section generally sized to fit within and substantially bridge the vertical thickness of a bed joint between two successive courses of masonry blocks in a masonry block wall, said intermediate body portion having flat and parallel upper and lower surfaces, said intermediate body portion  46  having an upper transverse fracture groove  50  in said upper surface located near said threaded end portion and having a lower transverse fracture groove  52  in said lower surface located closest to, opposite to, and parallel to said upper transverse fracture groove, and said intermediate body portion joined to an opposite end portion  48 . Preferably, the opposite end portion  48  is angled away from the longitudinal axis of the intermediate body portion  46 . Preferably, the threaded end portion  44  has a diameter greater than the thickness of said intermediate body portion  46 . The second embodiment  42 ′ preferably is formed by forging and rolling from rod stock of low to mid-grade steel, but alternatively the embodiment could be machined from appropriate stock material. Also preferably, the intermediate body portion  46  is swaged down by forging from cylindrical stock having the same diameter as the contiguous threaded end portion  44  to a cross-sectional width of the body portion greater than the diameter of the threaded end portion. 
   A preferred third embodiment  54  of the masonry block wall bracing wall anchor is shown in  FIGS. 10 through 17 . In the third embodiment, a masonry block wall bracing wall anchor  54  comprises a threaded end portion  56  joined to an intermediate body portion  58  having a vertical cross-section generally sized to fit within and substantially bridge the vertical thickness of a bed joint between two successive courses of masonry blocks in a masonry block wall, said intermediate body portion having flat and parallel upper and lower surfaces, said intermediate body portion having an upper transverse fracture groove  62  in said upper surface located near said threaded end portion and having a lower transverse fracture groove  64  in said lower surface located closest to, opposite to, and parallel to said upper transverse fracture groove, said intermediate body portion joined to an opposite end portion  59 , and said opposite end portion having an eye  60  preferably sized to receive through it at least one rebar member such as a vertical rebar member  16 . Preferably, the intermediate body portion  58  has a thickness less than the diameter of said threaded end portion  56 . The third embodiment  54  preferably is formed by forging and rolling from rod stock of low to mid-grade steel, but alternatively the embodiment could be machined from appropriate stock material. Also preferably, the intermediate body portion  58  is swaged down by forging from cylindrical stock having the same diameter as the contiguous threaded end portion  56  to a cross-sectional width of the body portion greater than the diameter of the threaded end portion. 
     FIGS. 13A through 13E  illustrate alternative side profiles for fracture grooves  62 ,  62   b ,  62   c ,  62   d , or  62   e  and alternative side profiles for fracture grooves  64 ,  64   b ,  64   c ,  64   d , or  64   e.    
     FIG. 14  is a partial perspective view of a masonry block wall showing the preferred third embodiment  54  of the masonry block wall bracing wall anchor bracketed between an upper edge of a relative lower course masonry block  4   a  and a lower edge of a relative succeeding upper course masonry block  4   b .  FIGS. 14 to 17  illustrate the preferred placing of the masonry block wall bracing wall anchor  54  in a masonry block wall with the fracture grooves  62  and  64  parallel to and bracketing the plane of an outer face of the wall through which the anchor protrudes. 
   To enable better understanding of the invention,  FIGS. 1 ,  3 ,  4 ,  14 ,  15 ,  16 ,  17 , and  26  do not show the mortar between the joints of the various walls and do not show the cementious mixture or the concrete aggregate slurry that would be poured into a number of the substantially vertically aligned cells. 
     FIG. 15  is an enlarged, partial view of the masonry block wall as indicated in  FIG. 14  showing the placement of a bracing wall anchor  54  in and through a bed joint  12  of the wall and showing a vertical rebar member  16  threaded through an eye  60  of the bracing wall anchor. 
     FIG. 16  is a partial sectional view of the masonry wall and the bracing wall anchor  54  as viewed from direction  16 - 16  in  FIG. 15  illustrating with two arrows A and B the upward and downward directions of movement that when the wall is completed can be imparted alternately by a worker to a hammer (not shown) in striking an outer free end of a threaded end portion  56  to fracture the wall anchor through the fracture grooves  62  and  64  into two pieces. 
   In  FIG. 16 , the arrow A also illustrates the potential upward direction of movement of the outer end of the threaded end portion  56  during a breaking process of the intermediate body portion  58  through the fracture grooves  62  and  64 . In  FIG. 16 , the arrow B also illustrates the potential downward direction of movement of the outer end of the threaded end portion  56  during a breaking process of the intermediate body portion  58  through the fracture grooves  62  and  64 . 
     FIG. 17  is a partial sectional view of the masonry wall and the bracing wall anchor  54  as viewed from direction  16 - 16  in  FIG. 15  showing a broken face  66  of the fractured body portion  58 ′ retained within the wall and an edge of fractured face  62 ′ in the upper transverse fracture groove  62  of the fractured body portion split away from the wall after a mason or other worker has broken off with a hammer or other suitable tool the protruding portion of the anchor that includes the threaded end portion  56 . 
     FIG. 18  is an exploded side view of a fourth embodiment  68  of the wall bracing wall anchor illustrating that the masonry block wall bracing wall anchor can be fabricated in part from plate steel. The fourth embodiment  68  comprises a threaded end portion  70  joined to a first end of a plate body portion  72 , said plate body portion having flat and parallel upper and lower surfaces, having a thickness less than the diameter of said threaded end portion, having an upper transverse fracture groove  76  in and across said upper surface located near to and perpendicular to said threaded end portion, having a lower transverse fracture groove  78  in said lower surface located closest to, opposite to, and parallel to said upper transverse fracture groove, and having an eye  74  in its opposite end.  FIGS. 19 and 20  each show a joining weld  80  whereby the plate body portion  72  is joined to the threaded end portion  70 . Preferably, the eye  74  is sized to receive through it at least one vertical rebar member. 
     FIGS. 21A through 21E  illustrate alternative side profiles for fracture grooves  76 ,  76   b ,  76   c ,  76   d , or  76   e  and alternative side profiles for fracture grooves  78 ,  78   b ,  78   c ,  78   d , or  78   e.    
     FIGS. 22 through 24  illustrate a fifth embodiment  82  of the masonry block wall bracing wall anchor showing that the masonry block wall bracing wall anchor can be fabricated in part from plate steel. The fifth embodiment  82  comprises a threaded end portion  84  joined to a first end of a T-shaped plate body portion  86 , said T-shaped plate body portion having flat and parallel upper and lower surfaces and having a thickness less than the diameter of said threaded end portion, said first end being the base of the T, said T-shaped plate body having an upper transverse fracture groove  92  in and across said upper surface located near to and perpendicular to the threaded end portion, having a lower transverse fracture groove  94  in said lower surface located closest to, opposite to, and parallel to said upper transverse fracture groove, and said T-shaped plate body portion having in its opposite end two coplanar body portion wings  88  (the arms of the T) and two eyes  90  with one said eye in each said body portion wing spaced from one another on opposite sides of the longitudinal axis of said threaded end portion. 
     FIGS. 22 ,  23 , and  24  show joining welds  96  whereby the first end of the T-shaped plate body portion  86  is joined to the threaded end portion  84 . Preferably, each said eye  90  is sized to receive through it at least one vertical rebar member. Alternative side profiles for fracture grooves such as those shown in  FIGS. 21A through 21E  could also be formed for use in the fifth embodiment. 
     FIGS. 25 through 27  illustrate a sixth embodiment  98  of the masonry block wall bracing wall anchor illustrating that the masonry block wall bracing wall anchor can be fabricated in part from plate steel. The sixth embodiment  98  comprises a threaded end portion  100  joined to a first cylindrical body portion  102  of a cylindrical connecting shaft having a diameter smaller than the diameter of the threaded end portion and having an annular fracture groove  104  in said shaft between said first cylindrical body portion and a second cylindrical body portion  106  of said connecting shaft, a generally flat eye plate  108  having two horizontally diverging body portion wings  112  with each said body portion wing having an eye  114  at its outer end, and said eye plate joined between said eyes to the end of said second cylindrical body portion away from the annular fracture groove and from the threaded end portion.  FIGS. 26 and 27  each show a joining weld  110  whereby said eye plate  108  is joined between said eyes  114  to the end of said second cylindrical body portion  106  away from the annular fracture groove  104  and away from the threaded end portion  100 . Preferably, each said eye  114  is sized to receive through it at least one vertical rebar member. Alternative side profiles for fracture grooves such as those shown in  FIGS. 21A through 21E  could also be formed for use in the sixth embodiment. 
     FIG. 26  shows a preferable placement during construction of a masonry wall of the sixth embodiment  98  of the masonry wall bracing wall anchor on a masonry block  4  of a lower course of blocks with an outer face of the block aligned through the annular groove  104  and with the first cylindrical body portion  102  and the threaded portion  100  protruding perpendicularly outward from the outer face of the block and related wall. Preferably, the diameter of the connecting shaft is equal to or less than the vertical thickness of the bed joint of the wall. 
   After the wall is completed, the wall anchor  98  can be fractured through the annular fracture groove  104  by a mason or other worker by use of a simple hand tool a hammer in a similar manner as described above regarding the third embodiment to remove said protruding threaded end portion  100  and said first cylindrical body portion  102 . 
   While  FIGS. 25 and 26  show a squared annular fracture groove  104 , alternative side profiles for fracture grooves such as those shown in  FIG. 21  could also be used with this sixth embodiment. The threaded end portion  100  and the connecting shaft can be forged or machined from a single piece of steel or fabricated separately and joined by welding.  FIGS. 26 and 27  show the eye plate  108  joined between the eyes to the end of the second cylindrical body portion  106  away from the annular fracture groove  104  by means of a joining weld  110 . 
   The various embodiments of the present invention may be sized in a range of sizes to advantageously cooperate with the various sizes and dimensions of masonry blocks in construction use. 
   Each embodiment of the block wall bracing wall anchor invention is preferably made from low to mid-grade steel. Preferably, all embodiments of the masonry block wall bracing wall anchor have rolled threads and all fracture grooves are forged. Alternatively, the fracture grooves could be machined by sawing, milling, grinding, turning, casting, or other suitable machining process. Preferably, each fracture groove will have a selected depth in a range of 5 to 40 percent of the thickness of an immediately adjacent portion of the intermediate body portion, the plate body portion, or the connecting shaft away from the threaded end portion. 
   The present invention in each of its various embodiments can be used with preferably a washer and a nut to replace prior art wall anchors having threaded attachment points such as the j-bolt wall anchor  18  discussed herein. For example, each of the embodiments  42 ,  42 ′,  54 ,  68 ,  82 , or  98  of the masonry block wall bracing wall anchor could substitute for the j-bolt wall anchor and be reversibly connected by a washer and a nut to an upper wall mounting bracket  30  to secure a side support  28  to a wall  2 . 
   The preceding description and exposition of the invention is presented for purposes of illustration and enabling disclosure. It is neither intended to be exhaustive nor to limit the invention to the precise forms disclosed. Modifications or variations in the invention in light of the above teachings that are obvious to one of ordinary skill in the art are considered within the scope of the invention as determined by the appended claims when interpreted to the breath to which they fairly, legitimately and equitably are entitled.