US 2500636 A
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March 14, 1950 s. ISAKSON HANGING DEVICE FOR WOODEN BEAMS 2 Sheets-Sheet 1 Filed March 27, 1945 INVENTOR.
STIG ISAKSON March 14, 1950 Filed March 27, 1945 S. ISAKSQN HANGING DEVICE FOR WOODEN BEAMS 2 Sheets-Sheet 2 INVENTOR.
/STIG ISAKSON BY I Patented Mar. 14, 1950 UNITED STATES PATENT OFFICE DEVIGEFOR WOODEN BEAMS stig lsakson l ortland, reg.,assignor of one-half;-
A.-further object of ny invention is'addingbarbs along; the edge of the cutting blades to-further hold the beams in place. I
These and other incidental objects will be apparent in the drawings, specifications and claims.
In the drawings:
Figure 1 is a fragmentary section of a concrete wall having one of my new and improved brackets mounted therein.
Figure 2 is a fragmentary plan section of the wall as indicated in Figure 1, but illustrating my bracket by having a beam inserted in place.
Figure 3 is a sectional view, taken on line 33 of Figure 2, looking in the direction indicated, parts broken away for convenience of illustration.
Figure 4 is a modified form of the bracket illustrated in Figures 1, 2 and 3, said bracket being adapted to straddle a beam to which other beams are to be mounted at right angles from said beam.
Figure 5 is another modified form of holding bracket showing the fragmentary section of a concrete wall having the bracket moulded therein and supporting a beam adjacent the wall.
Figure 6 is a fragmentary plan view of the principle illustrated in Figure 5.
Figure 7 illustrates my invention being adapted for use in scaffolding and the like, wherein the vertical uprights are joined together by the device ready for cross beams to be inserted within the holding brackets.
Figure 8 is a sectional plan view of Figure 7, illustrating the uprights in position, together with the connecting beams mounted within the brackets.
Figure 9 is a side View of Figures '7 and 8, partially broken away for convenience of illustration.
Figure 10 is another preferred form of arranging the holding brackets relative to the device for connecting the uprights together.
In the drawings:
My invention consists primarily of providing a bracket I for receiving a beam 2, preferably of wood, wherein the beam is driven in place and held therein by penetrating ribs or cutting blades to- Ge orge W. Schumacher, Portland, Greg, Application- March 2-7; 1945,- 'Serial 'No. 585,138
' e oiaims. (01. 304 -40) 3. In the case where beams are joined to side. walls the bracket; illustrated inrFigures 1, 2, 3, 4', 5 and. 6 are employed; although I'do not wish tobe. limited to the exact structure-as illustrated. The primary object being that once. the beamisidriven in place the ribs 3 or cutting blades form a groove. 4, within the beam for securely holding the beam in place withoutthe use of nails, bolts or the like.
I have shown in Figures 5, and; 6 a bracket-,5. of somewhat different. construction, where the same is provided forholding a beam Eadjace the wall I. the beam so thatwhen the same is driven into place this cutting edge will cut into the beam at 9 preventing endwise movement of the beam. The only way of removing the beam is to remove it by lifting it away from the bracket in the opposite direction to that in which it was driven into the bracket.
Referring to Figures '7, 8, 9 and 10, I have illustrated my invention as it would be used in connection with scaffolding and the like. I have illustrated a tubular device Ill for joining vertical scaffolding I l together and at the same time providing for lateral beam supporting brackets 12. Spacers [3 are provided for separating the ends of the vertical scaffolding l I. The lateral beams M are dropped into the brackets I2 as illustrated in Figure 8 and driven downwardly causing the cutting edges iii to penetrate the beams at I6,
securely locking them in place. Each cutting edge may have barbs ll formed in the cutting edges I5 for further preventing the beams from being removed.
Holes l8 are provided for inserting tie rods for further binding the scafiolding assembly together. I have illustrated a modified form of holding bracket assembly in Figure 10 where the scaffolding joint ID has holding brackets I9 located centrally of the side walls of the joint and having base plates 20 upon which the beams can rest. Braces 2! are also provided for preventing lateral movement of the bracket l9.
Referring to Figure 10, I have substituted a removable spacing bar 22 for the turned in spacers l3, as illustrated in Figure 8 for separating the ends of the uprights. This removable bar is held in place by a suitable locking device as bolt 23, the bar itself passing through the opening 24 and across the joint assembly In. The object of having a removable bar is to provide assembly and disassembly of the uprights midway their lengths instead of having to disassemble the whole scaffolding in order to remove the jointing device ID.
A cu t ng; ed 3. s. for ed ewlia ev In the operation of my new and improved holding bracket the beams are registered with the bracket, then driven down into the bracket, the bracket having a cutting edge adjacent the beam for cutting a groove within the beam so that lateral or end movement of the beam is prevented while being held by the bracket, this is the principle object of my invention.
I do not wish to be limited to the exact structure as illustrated, as other mechanical equivalents may be substituted still coming within the scope of my claims.
What is claimed as new is:
1. A metal scafiold bracket comprising a vertical sleeve for fitting about a scafiold upright,
means on said sleeve for securing it on the scaf-- scafiold cross-members between said upright porfold upright, support members extending laterr as the latter are forced into position and for holdally from said sleevefor supportin horizontal wooden scafiold cross-members, upright portions onsaid support members and spaced from said sleeve to receive the wooden scaffold cross-members'between said upright portions and said sleeve to laterally confine said wooden cross-members.
and cutting edges on the inner sides of said up rightrportions to cut into the adjacent sides of the wooden cross-members as the latter are their seats on the support members.
tions and said sleeve to laterally confine said wooden cross-members, and cutting edges on the inner sides of said upright portions to cut into the adjacent sides of the wooden cross-members ing said wooden cross-members against longitudinal movement.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 101,825 Clinger Apr. 12, 1870 409,893 Wray Aug. 27, 1889 1,664,499 Baker Apr. 3, 1928 2,037,736 Payne et a1 Apr. 21, 1936 2,323,195 Bouchillon June 29, 1943