US 1883761 A
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SAFETY ANCHOR Filed Jan. 9, 19
' INVENTOR A Q H BUCK BY ATTORNEY BUCK ,883,761
Patented Oct. 18, 1932 PATENT o FF'IcE AINsWoR'rI-I BUCK, or YEAVST ORANGE, NEW JERSEY SA: FETY ANCHOR 5 Application filed January 9, 1930. Serial No. 419,?26.'
The invention relates in general to a window cleaners safety anchor and to the combinationof the same with a multiple part building construction unit suchas a window casing. Y
It is a usual practice in mounting anchors of this type in position to extend them more or less into the masonry and similar structural parts in order to insure a security ofconnection. Under some circumstances it is diificult, if not impossible, to' drill into old masonry structures'in order to mount the an fehors'in place and under other circumstances it is dificult to attain sufficient purchase on the masonry structure to efiect a positive securing of the anchor in the desired place. To meet this difficulty it has been suggested to secure the anchor to'an exposed element of the window frame or other structural unit distinct from the masonry but this face mounting of the anchor has not been a'safe procedure as abnormal strain on the anchorv would be; very apt to either break theanchor away from the frame or carry with it the particular portion of the frame to which it was attached. Ithas also been suggested to pass the anchor through several: window frame parts and then in order to prevent any tendency of this form'of' anchor to rotate to provide prongs which are designed to be driven into the face portion of wooden frames. Such structure isof no value in' the case of frames otherthan wood or where for any reason it is not desirous'to mutilate the wooden face and further a different size anchor'has to be-providedfor frames'or similar and the like, without necessity ofumutilating exposed surfaces; which will securely position the anchor in place with a single fastening bolt which can be accommodated to frames of diiferent depths simply by selecting the proper size of bolt and which will tend additionally-to secure together the'parts of the frame structurejto which it is attached and thus minimize the tendency to separate the parts of the same or other structure to which it is attached.
Another object of the inventiomand' speci- 55 fically'referring to the anchor as an article of manufacture per se, is to provide for maximum strength and rigidity with the use of theleast possible amount of metal and to dispose the metal in such way as to cause one 50 part to brace the other and to provide a rugged form of harness engaging post which will facilitate an easy engagement therewith of the harness and which will tend to brace the supporting portion of the anchor at the place where it is most liable to be weak.-
ably has a length sufiicient to pass through the several parts which go to make up the frame and in this way act not only to secure the anchor in place but to tie the struc- 7 tural parts parts to each other,' and to the an chor. In order'to defeat any tendency of the anchor to-turn about the single bolt as a pivot,'the disclosure features one or more facing flanges co acting with the main plate 30 to form an angle structureand in its engagement with the mounting supporting structure to defeat'any tendency of the anchor to rotate aboutthe bolt.
Various other objects and advantages of-ss the invention will be inpart obvious from an inspection of the accompanyingdrawing and in part will be more fully'set forth in the following particular description of one form of mechanism embodying the inso vention, and the invention also consists" in certain new and novel features of construction' and combination of parts hereinafter set forth and claimed. V 1
' In the accompanying drawing:
Fig. 1 is a view partly in horizontal section throughthe part of a conventional form of window frame adjacent the window guides,'showing a preferred embodiment of theinvention mounted thereon; i n
Fig. 2 is a plan view looking down upon the anchor shown in Fig. 1 with the bolt element removed; and
Fig. 3 is a view in front elevation of the anchor looking at the same from the right side of Fig. 1.
In the drawing and first referring to the,
lation of the anchor herein featured and afterwards replaced to of the frame.
Referring particularly to the anchor feature of the disclosure there is illustrated a one piece integral casting comprising essen tially a main plate 17 which is relatively wide as shown in Fig. 2 to obtain the requisite area of engagement with the face 18 ofthe outer supporting frame part or member 12. In the illustrated showing this plate 17. is flat to fit the flat face 18 which constitutes the majority of such faces in conventional window frame constructions. In some limitednumber of cases the face 18 is preserve the finish not flat but is curved in different ways and it is within the scope of this disclosure to .design the plate 17 so as to conform to the configuration of the surface 18 with which it engages.
It is a feature of this disclosure. that the anchor is secured in place mainly by a single fastening bolt and to accommodate this bolt the plate 17 is provided with a non-circular bolt hole 19. A long bolt 20 has a noncircular head portion 21 fitted into the hole 19 so as to prevent rotarymovement between the bolt and the anchor when the bolt nut 22 is turned on the oppositeexposed end 23 of the bolt. The bolt extends through the several parts 12, 13, 14 and 15 and acts not only to hold the plate 19 in firm engagement with the surface 18 but also acts to secure these frame parts together. In such constructions, the nut 22 is usually accessible without inutilating or dismantling any part of the frame structure and the long bolt not only adds structural material to the anchor :itself but braces the anchor in a direction at right angles to the plane of the plate 17. The outer edge of plate 17 is shown to be straight as indicated at 24 and depending integrally from this plate 17 is a pair of face flanges 25 and 26 extending at right angles to the plate 17 and coacting therewith to form an angle member asviewed in side elevation in Fig. 1. The
face 27 and accordingly the flanges in the device illustrated are each provided with a .screw hole 28 into which may be inserted wood screws 29 passed therethrough and into the supporting member 12 in oflfset relation on opposite sides of the bolt 20.
Extending outwardly fro a the main plate 17 at its straight edge 24- is a harness engaging post 29 pro iecting integrally from the top of the plate 17 and from the portion thereof between the flanges 25 and 26. The post is somewhat curved and terminates at its outer end in a square head 30. The post is gradually increased in cross sectional area from its mid-length towards the main plate 17 and rounds into this plate as indicated at 31, 32 and 33 to form maximum strength at the end attached to the plate. The outer side of the post is concaved as shown at 35 and rounds from the head 30 into the. plane containing the flanges 25 and 26. In order to lighten the structure at a point where material is not needed it is suggested that the flanges 25 and 26 be of no greater width than is necessary to accommodate the screws and thus a space 34 will-be left in the facing The anchor is mounted in place by removing the facing strip 16 and drilling a bolt hole through the parts of the casing where the anchor is to be located. The anchor is then disposed in position with bolt hole 19 in alignment with the drilled bolt hole and with the flanges engaging the outer face 27 of the support. A bolt 20 of the proper length is then passed through the hole 19 and its nut 22 drawn up and tightened until the parts are rigidly secured in place after which strip 16 may be replaced and the device readyfor use. In those cases where it is desired to pass screws 29 through the face flanges such screws may be turned into place thus providing additional security to the structure as a whole. V
It is within the scope of the disclosure to omit the recess 34 between the flanges 25 and 26 and to use a. single flange instead of the two flange structure illustrated. It is also within the scope of the disclosure to provi to two spaced apart posts in place of the single post illustrated following a known construction in this respect. 7
By means of a deyice of the type disclosed there is provided apositive, secure connection between an anchoring device and a support even where the supportis made up of structural elements which would ordinarily have a tendency to separate when strains were placed upon the anchor. The anchor can be mounted in position without materially mutilating the supporting structure and in fact the fastening means are limited to a single bolt which can be supplied of any requisite length to fit the structure to which the anchor is attached. As these bolts are standard articles it is simply necessary in order to attain the advantages herein outlined to provide the anchor in the design illustrated and which can be conveniently formed as a cast ing together with a proper length carriage bolt. Inthis way, an anchor can be provided which can be accommodated to fit any size frame.
The concaved curved inner side of the post as it merges into the plane containing the flanges 25, 26 facilitates a quick engagement of the post by the usual attaching clip forming part of the window cleaners safety harness'and thus ease and positiveness of a quick engagement is asserted by the forwardly projecting disposition of the post head to the outside of and beyond the planes of the adjacent attaching parts, defined by the surfaces 18 and 27.
1. In a device of the class described, the combination of a building construction comprising a plurality of structural parts and provided with angularly disposed faces coacting to form an exposed angle, a one-piece window-cleaners safety anchor fashioned to fit said angle, said anchor comprising amain plate fitted to one of said faces, provided I with a non-circular bolt hole extending therethrough and with a face-flange integral withand into said other face, and a relatively long bolt passed through said bolt hole, said bolt being oflset from said screw, passed through said construction fastening the anchor to the construction and said bolt also providing means for assisting in securing the structural parts in place and to defeat any tendency of abnormal strain on the post from separating the structural parts from each other.
3. In a device of the class described, the combination of a support providing a main face and another face extending at an angle to the main face, an anchor including a main element fitted to said main face and a facin element extending integrally from one edge of the main element and fitted to said other face, a single bolt extending through an edge of said main plate and fitted to the other face, a post integral with said main plate and projecting therefrom at the edge provided with the face flange, said flange provided with a screw hole, a screw extending therethrough and into said other face, and a relatively long bolt having a noncircular head portion fitted in said bolt hole and held thereby from rotary movement.
1 ing in securing the structural parts in place and to defeat any tendency of abnormal strain on the post from separating the structural parts from each other.
2. In a device of the class'described, the I combination of a building construction comprising a plurality of structural parts and provided with angularl'y disposed faces coacting to form an angle, a one-piece windowcleaners safety anchor' fashioned to fit said angle, said anchor comprising a main plate