|Publication number||US2572432 A|
|Publication date||Oct 23, 1951|
|Filing date||Oct 19, 1946|
|Priority date||Oct 19, 1946|
|Publication number||US 2572432 A, US 2572432A, US-A-2572432, US2572432 A, US2572432A|
|Inventors||Bates Walter A|
|Original Assignee||Beulah H Bates|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (3), Referenced by (7), Classifications (6)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Oct. 23, 19.51 w, BATES 2,572,432
GRATING ANCHOR FilE d OGt. 19, 1946 INVENTOR. Wa/Zer a 54256.9;
Patented Oct. 23, 1951 UN STATES? 2,572,432 GRATING ANCfiORi'i.
Walter *A. Bate -Juliet,lurassignorto Beulah H.- ,Bates,Jliet,-1Ill-.:
Ap lication-pewter 19, 1946; Seria'l'NoL 704,421: claims (01. 189f-'-84-),;-1-
The present inventionrelates to=lmprovements' in-grating anchors.
More particularly, the present inventionfrelatcs to means for anchoring-gratings suchy-forLexama ple; asthose used in the floors ofinduStriaIpIantsJ 5 and the like. Gratingsof "the kind 5 referred toare commonl formed-of-aplurality-of parallelfi bars called main bars connected .by-mea-ns of-cross bars, theassembly forming auni't adapted to be supported-upon side members which" may-take theform of structural steel shapes of well known contour." The'present applicant on-March"1,-1 946.jfiled an application-entitled Anchors for Gratings, SerialNo. 651,219, which relates to the same general subject matter-asthe present-invention. The presentinvention has for -one -of-its objects the provision of a grating anchor'whi'ch includes advantages of the subject-matter-of: the appli cation-aforesaid and embodies-further advantagesw A further object-is to provide an improved grating-anchor readilyapplicable't'ogratings of known design, which is simple in construction and easy to assemble anddisassemble when-the grating-is located in operative position-uponthe supportirrgmembers therefor.
A further object is toprovide-a grating anchor well adapted to meet the needs"of'ordinar-yservicei Referring to the drawings; 7 I
Figure 1 is a 'viewin sec-tionalelevationtaken through a e grating having applied--- theretd -0ne 11 embodiment of thepresent inventiony Figure 2 isa top=p1an view or the structure shown in Figure l Figure 3 is a: sectional view-takerr along thm plane indicated by the-arrows-3'3 i Figure-1;"
Figure 4 is a perspective -view--of ='a clamping member forming partof thestructureillustrated in the preceding figures; and v Figure 5 is a fragmentary view similar to a-por tion of Figure 1 but illustratinga sligh-t modifica tion.
The numerals 1 0 0 indicate themain bars of a grating; The num'erals---||'- 'indicate 'cri s" bars which extend'throug-hapertures in-Said h'rain bars and hold said main bars sec'ur'elyin spaced 45,
parallel relationship. The top edges' of saidPfn'a-i'n bars -||l||] ordinarilylie-in*a-single= plafie and the bottom edges of said main bars-lie inanothei plane. The numeral 12' indicates -an ang-le mem ber -presenting' a horizontal flange 12 a for the-- reception of ends of th einainbars lll lflf- An anchor for holding "the gratin n-position on the angle member- 12 isindicated as a-whole by the numera1'-|3. Said-anchor cOm'prises tIie following partst-The holding member fl "tlie bolt l 5 and the clamping --menrber*or blami9 3* The holding memberl 4 may be inade of 'js'h'ee't metal which may be stamped out; of a hat sheenandswedged into the shape illustrated men-ere 1,"2"and 3. Said'holdir'i'g member-l4 include i elongated leg-portion'll the-bent over portion 8 and the shorter leg portion l9 provided-'with' the flange 20*having' an aperture therein not"illu's-*'* trated) The-legs I! and 19" are spacedapart'a distance slightly-greater than the thi ckne'ss of -a main bar ID; The clamp |6*is-a-*membe'r; pref-" erably' of metal, bent -upon itself-to form-a leg 2| which at the bend 23 connected Wi-th tlie leg-24." The leg' 24 is-- Wdged out 'of -align 1nent with the leg 2| in a manner illustrated in' Fig ures 2 and 4. The leg 24 is' longerthan the leg 2F and is provided with a n elongated -slcitindicated by the numeral 25fthe material at -each' 'side'of' the slot 25 being' thickened as' indi'c'ated by -the' numeral 26 for the purposeof"reinforcing the metal of the clamp at'that region.
Informing the slot-of-theleg-M ofthe gimp- It, said leg 24' may be slit'longitudinally-andthe two edges of said leg 24 adjacent to-sai'ds'lotma'y'"' be'rolledthrough an angle of degrees, having; the effect of spreading the metal to providethe' slot 25 at this region. If thematerial ofthe clamp I6 is approximately one-half inch wide? the material at each of the regions 26 wil-l' be'" approximately one-fourth inch deep. By reaso'n of this construction, a clamp l6 "may be used which is relatively narrow giving maximum clear ance for ins'ertio'n of the anchor 13 between the" main bars ll] of a grating. Though the clampffli may be relatively narrow, the reinforced portions 26-26 provide adequate strength. The clamp l 6 may be made of spring metal.
The bolt I5 is provided with the head 21-' hav-'- inga screw driver slot'therein. The"shank "28-= of the bolt 15 has the nut 29 threaded thereon Said nut is illustrated as-being squarem crasssection, this being a shapewhich 'is-useful'-"for cooperation with the elongated leg 1' of the holdings. member l4; Thelower-extremity of theshank 28 of 'the bolt I5 is upset as indicated byth'e um-em 30'whereby to prevent loss of the nut 2 9; Itwill be understood, of course, that the -upsetting" op-' eration will be performed after-thebolt -|5 has been inserted into the aperturein thefiange -20 and into the slot 2501 the clamp l6 and 'after' the nut 29 has'been threaded upon the'shank 28-- of said bolt.
In-order that the leg 2| of the clamp It may underlie a main bar 'lll approximately symmet rically therewith, the corner of theleg 2| above=-= the slot-'25 may be notched out as lndicatedby the numer al-3|-. -Th'is-will--allow said-leg2| td' 'clar awmsg the leg portion I I of the holding member I4. After the grating (which includes the main bars I and cross bars I I) has been located upon 'the horizontal flange I2a of the angle member I2, said grating may be anchored in place by applying the anchor I3 thereto from above said grating. The bolt I5 will be loosened and the clamp I6 will be turned into a position wherein it is readily insertable between adjacent main bars I0-I0. Due to the fact that the slot 25 is much longer than the diameter of the shank' 28 of the bolt I5, the clamp 2| may be tipped into acute angular relationship with the bolt I5, so that the anchor may be inserted through a relatively small opening from above the grating. The holding member I4 will be located upon one of the main bars I0, said main bar being disposed between the legs I! and I9, the intermediate portion I8 of the anchor resting upon the top of said main bar. The clamp I6 will be turned into the position illustrated in Figure 2 wherein the leg 24 of said clamp underlies the horizontal flange I2a of the anchor member I2. By reason of the fact that the free extremity of the leg 2| of the clamp I6 is notched out as indicated by the numeral 3|, said leg 2| may occupy a position approximately symmetrical with the adjacent main bar I0, the leg ll of the holding member I4 being disposed within said notch 3|. The bolt I5 will then be turned within the nut 29 until the clamp I6 is put under sufficient tension to hold the grating securely in position on the angle member I2. The shank 28 of the bolt I5 Will assume an angular position relative to the leg I! of the holding member I4 and the nut 29 will engage said leg I1 whereby the accidental turning of said nut 29 will be prevented.
In service, difierent thicknesses of the horizontal flange I2a of the angle member I2 will be encountered, and for this reason it is desirable to provide a clamp I6 which will accommodate a variation of thicknesses of this horizontal flange. According to the disclosure of Figure 5, the clamp I6 has a bend of relatively large radius between the leg 2| and the leg 24 of said clamp. In order to facilitate the bending of the clamp I6 at the portion 23, the said portion at an intermediate region thereof may be notched as indicated by the numeral 32. By reason of the thickened portions 26, the leg 24 may be reinforced without widening the clamp I6 whereby material is conserved.
The grating anchor as illustrated and described requires a minimum of material, is adapted for application to a grating or the like even in cramped places, may be readily mounted and dismounted from above the grating and will hold the grating securely in position upon the horizontal supporting member.
Though certain preferred embodiments of the present invention have been described in detail, many modifications will occur to those skilled in the art. It is intended to cover all such modifications that fall within the scope of the appended claims.
What is claimed is:
1. In an anchor, in combination, a holding member, a clamping member, a bolt having a head and a nut for said bolt, said holding member being an elongated member bent intermediate of its length to provide two legs adapted to loop over a grating bar or the like, one of said legs having an outstanding flange, the other of said legs extending a material distance beyond said first mentioned leg, said flange having an d aperture, said clamping member being an elon gated member bent intermediate of its ends to form two clamping portions, said clamping portions being disposed outof registry with each other, one of said clamping portions having an opening therein, said bolt being located in said aperture and in said opening, said nut being located on said bolt, the other of said clamping portions being adapted to underlie said grating bar, said head of said bolt and said nut being located in positions wherein they are adapted to exert pressure upon saidholding member through said flange and upon said clamping member to pull them toward each other to grip said grating bar.
2. In an anchor, in combination, a holding member, a clamping member, a bolt having a head and a nut for said bolt, said holding member being an elongated member bent intermediate of its length to provide two legs adapted to loop over a grating bar or the like, one of said legs having an outstanding flange, the other of said legs extending a material distance beyond said first mentioned leg, said flange having an aperture, said clamping member being an elongated member bent intermediate of its ends to form two clamping portions, said clamping portions being disposed out of registry with each other, one of said clamping portions having an opening therein, said bolt being located in said aperture and in said opening, said nut being located on said bolt, said opening being elongated in the direction of the length of its corresponding clamping portion, the other of said clamping portions being adapted to underlie said grating bar, said head of said bolt and said nut being located in positions wherein they are adapted to exert pressure 'upon said holding member through said flange and upon said clamping member to pull them toward each other to grip said grating bar.
3. In an anchor, in combination, a holding member and a clamping member, a bolt having a head and a nut for said bolt, said holding member comprising an elongated member having a U-turn intermediate of its length to provide a long leg and a short leg, said short leg being provided with an apertured out-turned flange, said clamping member having a U-turn intermediate of its length to provide two clamping portions, said clamping portions being angularly disposed out of registry with each other, one of said clamping portions having an opening therein,
said bolt being located in said apertured flange and in said opening, said nut being located upon said bolt, the other of said clamping portions being adapted to be positioned facing said U-turn, said head of said bolt and said nut being located in positions wherein they are adapted to exert loop over a grating bar or the like, one of said legs having an outstanding flange, said flange having an aperture, said flanged leg being materially shorter than the other of said legs, said clamping member having a U-turn intermediate of its length to provide two clamping portions, said clamping portions being disposed out of alignment with each other, one of said clamping portions having an opening therein for receiving said bolt, said bolt extending through said aperture and through said opening in said clamping member, the other of said clamping portions being notched whereby said other clamping portion may clear said holding member, the other of said clamping portions being adapted to underlie said grating bar, said head of said bolt and said nut being located in positions wherein they are adapted to exert pressure upon said holding. member through said flange and upon said clamping member to pull them toward each other to grip said grating bar.
5. In combination, a grating having main bars disposed in parallel relationship with each other, said main bars being secured together, a horizontal supporting member at the extremities of said main bars, an anchor securing said grating to said supporting member, said anchor including 25 of said main bars, said short leg being provided with a flange at its extremity, said flange having an aperture, the other of said legs extending downwardly a material distance below said supporting member, said clamping member being bent intermediate of its length to form two clamping portions disposed out of alignment with each other, one of said clamping portions having an opening, said bolt extending through said opening and through said aperture, the other of said clamping portions underlying said one main bar, said first mentioned clamping portion being positioned underneath said horizontal supporting member, said head of said bolt and said nut being located in positions to exert pressure upon said flange and upon said first mentioned clamping portion of said clamping member to pull them toward each other to force said main bar of said grating and said supporting member into engagement with each other. WALTER A. BATES.
REFERENQES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,707,533 Nagin Apr. 2, 1929 2,117,519 Snyder May 17, 1938 2,175,453 Barcy Oct. 10, 1939
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US1707533 *||Aug 11, 1926||Apr 2, 1929||Tri Lok Company||Clip for gratings|
|US2117519 *||Dec 30, 1936||May 17, 1938||Snyder Benjamin L||Grille guard for automobiles|
|US2175453 *||Jan 24, 1938||Oct 10, 1939||T B F Company||Clamp|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2994417 *||Mar 25, 1958||Aug 1, 1961||Reliance Steel Prod Co||Stair treads|
|US3106271 *||Oct 30, 1961||Oct 8, 1963||Smith Ind Internat Inc||Grating clamp|
|US3466829 *||Nov 28, 1967||Sep 16, 1969||Gulf Oil Corp||Grating fastening clip|
|US4185435 *||Feb 3, 1978||Jan 29, 1980||Schiffers Albert Jr||Anchor clamp for serrated grating|
|US4362422 *||Sep 12, 1980||Dec 7, 1982||Zinkann Paul J||Grating fastener|
|US4798029 *||Nov 30, 1987||Jan 17, 1989||Fibergrate Corporation||Hold-down clamp|
|US6226952 *||Dec 28, 1999||May 8, 2001||Rotecna, S.A.||Device for anchorage to a grating floor|
|U.S. Classification||52/507, 52/664|
|International Classification||E04C2/42, E04C2/30|