US2554779A - Coping - Google Patents

Description

May 29, 1951 J. H. GOODWIN COPING Filed Aug. 5, 1949 JNVENTo lm/Z Goow in Patented May 29, 1951 YUNTIELD vS'lfAflflilS PATENT 0'FFI CE DOPING lohnV H. fGoodwin, flittsburgh, Pa., lassigner to verly Manufacturing Company, Greensburg, lPa.,acorporation `ci? Pennsylvania Application August 5, 1949, Serial No.i`'8,76"7

(Cl. f7286) f9 Claims. 1

vThis .invention iis 4for 1a. copingfor use on the parapet walls of buildings and4 like places lwhere it is desired to preventfwater irom 'soaking-.down into the wall, and is :designed to rerace the usual coping stone which Ais quite commonly used, and to eliminateth'e need for'through wallv flashing bel'ow the coping stone.

Where a coping vstone `is"fused on `top of -a parapet wall, vfor example, itis the nsual practice to put a throughV wall ashin'gfon the topcf the wall below the 'coping to exclude the .seepage `.of 'water downwardly through the wall. Sometimes the hashing is not used, in which case the `masonry is relied'upon'to-'effectasuincient'stoppage;against penetration, -but this vcommonly `results in water seeping through the walland leaching out -lime from the mortar, leaving Ia discoloration on the face of the building. It has been lproposed in cheaper constructions 'to carry the roong up the interior face `of the parapet wall and over the top of the parapet,v using Atar and Toon-ng. paper, but this detracts from the appearance of the wall, adds to the fire hazard, andina'y Vbe loosened by freezing weather-or high winds.

The object o'f the :present invention-is to provide a metal coping which fis architectural'ly pleasing, which effectively excludes moisture from the top of the masonry -or fparapet fwall, and 'which will endure for the life -of the metal `from lwhich it-s made. The copinglbrie-y replaces the need for any through wall flashing.

My invention/may `rbe more fully understood by reference to the yacconflpan'yin'g drawings, in which:

v1fis-a perspective view of a corner of a parapet wall having my Tcoping applied thereto;

Fig. 2 :is -a transverse section -in the plane of line II-II of Fig. 11;. and

Fig. 3 isa vertical section `longitudinalh7 offa portion or the parapet wall, the view being in the plan'e'of line IzII-III'of Fig.` 2.

According to `the present.l invention, the Vlaarapet wall or other masonry Jover which the Scoping is to be placed, and which isdesignate'd 2, is laid with embedded threadedrstudsorbelts 3 therein atre'gular intervals, 'the threaded ends o'f `these bolts projecting beyond the vtop ci the masonry. The bolts are preferably placed "aifong the longitudinal center line of the building, vandthel space is rather accurately predetermined'.

These belts serve 'te anchor Ithe lcoping to the masonry. The coping includ'esa transverse Ichannel "4 formed preferably troni "sheet metal, Ythe channel being generally iU-shape'd in transverse Section, is"best"Sheff/viriF'ig. 3. Il? hais a bUltO'm' 5, the center of whichis'lraised to providey a ridge 6,?and'through thetop of thisridge there is a `hole -1 to acccm'mod'ate the upper end of the rstud 3. One 'of these channels is provided at each point where there Vis one of .the embedded bolts. The channel llasside flanges 8, and these flanges, as best seen in Fig. 2, rtaper in height from the inner face :2a of the lparapet wal-1, having a height at the inner endl ofthe channel slightly greater than the height 'of the rib f5, while being somewhat higher at 'that end yof the channel lwhich is 'adjacent the outerv edge `of the para-'pet wall. In the drawings, 2a `designates -the inner faceof the parapet wall, and l'2b :designates the outer face. The "bol-t 3 passes up through the hole 'l :in the ridge at the base -fof `the channel, and a nut 3a is screwed thereon to 'an'chor the channel to 'the masonry. At each side of thestudfB Ithe channel is provided with fa threaded opening il, these openings l9 also being made in the topof the ridge 6 in the bottom of the 'channel` f AThe end of the channel "at theouter face Aof the Wall is 'curved upwardly, as indicated at 5a, and the end of vthe channel Aat the inner face 0f the wall is turned downwardly as indicated at 5b.

The main bodycf the coping is formedof metal sheets lll out tothe'properlength. The sheets H) have a wide, downWardlyLtu-rned flange II at the outer face thereof, and the lower 'edge of this angeturns'inwardly providing a lip `I2 that terminates clc'se'tothecuter faceof the parapetwall. The vinner edge 'of thesheet- I 0 is bent downwardly, providing la depending ange |3. In Fig. 1 I have shown 'the structure at the corner of the building where two of fthe :members IU are miter-'cut and solderedl or otherwise .icined together, but throughout the greater Yportion of the length of the wall, the sheets 'are of course straight. The endso'f the sheets lfoverhang 'the il'anges 8 of the channels f4. as best shown in Fig. 3, and these over-hanging ledges `cf the ends are bent downwardly as indicated at I0 in Fig. '3 to more effectively make a weather-tight joint with the channel. An cap strip |4 which is more than twice as Wide fasfthe channel il, is placed over the top of the -channel 4 after the ends have vbeen bent downwardly as indicated at VIll in Fig. 3. This cap strip has holes therein positioned so that screws I5 passing through the cover strip will enter and be screwed into the holes `El in the bottom ridge `ci the channel. The cover strip I4 thus serves to form "a lap Ajoint between the vends of the tw'o sheetsy IIJ, and it also 'clamps the ends of the sheet against the flanges 8 of the channels 4.

In "assembling, 'the wall is prepared to receive the coping by embedding the bolts therein. The channels 4 are then secured in place in the manner hereinbefore indicated by the studs 3 and nuts 3a. The coping sheets I0, which have previously been bent to form, and which are cut to the required lengths and otherwise prepared for the job, are then laid in position. As each two sheets are put in place, the cap strip I4 is screwed down. The cap strip I4 has a downwardly-turned flange I6 at the front face of the building that is turned inwardly to hook around the lip I2, and it has a downwardly-turned flange I'I at its inner end which is curled up under the iiange I3 of the ends of the two sheets I0 which it overlaps, as best shown in Fig. 2. This serves to more securely join the coping sheets to the cap strips, which cap strips are invturn secured to the cross channels.

The taper on the iianges 8 of the cross channel imparts a slope to the top of the coping so that the front or outer edge of the coping is higher than the inner edge. This results in any water falling on the coping draining back onto the roof of the building, instead of falling down the front of the building. The cap strip serves to prevent the leakage of any substantial amount of water adjacent the ends of the sheets I0, but if any water does drive under the cap strip I4, it will flow down the sloped ends I0 of the sheets and drip into the bottom of the channel 4. The ridge 5 at the bottom of the channel in which the bolt and screwed holes are made is above the level vof any water which would thus seep into the channel. Any water thus collected in the channel cannot flow down the front of the building, due to the upwardly-turned apron 5a. Such water drains to the back of the wall and flows down the downwardly-turned edge of the channel 5b to drip down onto the roof. Should the screws I5 not be entirely tight, so that water could seep in around them, of which there is only a slight possibility, such water would run down the shanks of the screws I5 and drain from the shanks of the screws down the ridge into the bottom of the trough.

` The channels 4 are at reasonably close intervals, determined by the size of the sheets which itis practical to handle, but the best spacing can be determined by the roofer. Excessive distance between channels would permit undesirable sagging of the sheets I0. There is suilicient ventilation under the coping to allow for breathingf and the evaporation of moisture or elimination of condensate. The coping provides a pleasing and attractive trim' or nish, and is as enduring as the metal of which it is made. It is less expensive than stone, and of course flashing under the coping is not required.

While I have shown and described one specic embodiment of my invention, it will be understood that various changes and modications may be made therein.

1. A coping for use on a parapet or like wall comprising a channel member adapted to extend crosswise of the wall on which the coping is to be placed, said channel having side flanges that taper in height from one end to the other, coping sheets adapted to extend along the wall, each having an end resting on and slightly overhanging the ilanges of the channels, and a cap strip covering the gap between said ends of the coping sheet and lapping over said ends, said cap strip being secured to the channel, the coping sheets each having a flange that is adapted to lap down over the front face of the wall, and each having a flange along the inner edge thereof that is adapted to lap down over the inner face of the wall.

2. A coping for use on a parapet or other Wall comprising a channel member adapted to be secured to the wall and extend crosswise thereof, said channel being of tapering section from one end toward the other and being adapted to have its maximum height at the outer face of the wall, two coping sheets adapted to extend along the wall having their ends resting on and slightly overhanging the channel whereby the coping vsheets are sloped corresponding to the taper of the channel, and a cap strip covering the gap between the ends of the two coping sheets and Vlapping over said ends, means for securing the capped sheets to the channel, the coping sheets each having one longitudinal edge turned downwardly so as to be adapted to lap over the front face of the wall and each having its other longitudinal edge turned down to be adapted to lap over the rear face of the wall.

3. A coping for use on a parapet or other wall comprising a channel member adapted to be secured to the wall and extend crosswise thereof, said channel being of tapering section from one end toward the other and being adapted to have its maximum height at the outer face of the wall, two coping sheets adapted to extend along the wall having their ends resting on and slightly overhanging the channel whereby the coping sheets are sloped corresponding to the taper of the channel, and a cap strip covering the gap between the ends of the two coping sheets and lapping over said ends, means for securing the capped sheets to the channel, the coping sheets each having one longitudinal edge turned downwardly so as to be adapted-to lap over the front face of the wall and having the other longitudinal edge turned down so as to be adapted to lap over the rear face of the wall, the flange on said one edge having itsl lowermost edge turned inwardly to provide a lip that is adapted to terminate close to the face of the wall whereby the coping is adapted to project beyond the front face of the wall on which it is placed.

4. A coping for use on a parapet or other wall comprising a channel member adapted to be secured to the wall and extend crosswise thereof, said channel being of tapering section from one end toward the other and being adapted to have its maximum height at the outer face of the wall, two coping sheets adapted to extend along the wall having their ends resting on and slightly overhanging the channel whereby the coping sheets are sloped corresponding to the taper of the channel, and a cap strip covering the gap between the ends of the two coping sheets and lapping over said ends, means for securing the capped sheets to the channel, the coping sheets each having one longitudinal edge turned downwardly so as to be adapted to lap over the front face of the Wall and having the other longitudinal edge turned down so as to be adapted to lap over the rear face of the wall, the channel having the bottom thereof turned upwardly at the end of maximum height and having the bottom thereof turned downwardly at the other end, whereby any moisture that drains from the said channel drains to the said other end.

5. A coping for use on a parapet or other wall comprising a channel member adapted to be secured to the wall and extend crosswise thereof, Said channel being of tapering section from one end toward the other and being adapted to have its maximum height at the outer face of the wall, two coping sheets adapted to extend along the wall having their ends resting on and slightly overhanging the channel whereby the coping sheets are sloped corresponding to the taper of the channel, and a cap strip covering the gap between the ends oi the two coping sheets and lapping over said ends, means for securing the capped sheets to the channel, the coping sheets each having one longitudinal edge turned downwardly so as to be adapted to lap over the front face of the wall and having the other longitudinal edge turned down to be adapted to lap over the rear face of the wall, the channel having the bottom thereof turned upwardly at the end of maximum height and having the bottom thereof turned downwardly at the other end, whereby any moisture that drains from the said channel drains to the said other end, said channel having a ridge down the bottom thereof with a hole extending therethrough to receive a securing stud, the said ridge also having threaded sockets in the top thereof, there being screws passing through the cap strip and threaded into said sockets for securing the cap strip to the channel.

6. A coping structure for use on a parapet wall comprising spaced channel elements adapted to extend crosswise of the wall, said channel elements tapering in height from one end toward the other and adapted to have their maximum height at the outer face of the wall, coping sheets extending from one channel to the next and having their ends supported by and slightly overhanging the channels between which they extend, the taper of the channels imparting a slope to said coping sheets, each coping sheet having an edge that is adapted to project beyond the face of the parapet wall at the front face of the building and having a downwardly-turned ange that is adapted to overlap the front face, the other edge of each of said sheets also being turned downwardly so as to be adapted to overlap the rear face of the wall, cap strips over each channel covering the gap between the ends of two adjoining sheets and overlapping said ends, screws securing each cap strip to the underlying channel, and studs adapted to secure each channel to the wall.

7. A coping structure for use on a parapet wall comprising spaced channel elements adapted to extend crosswise of the wall, said channel elements tapering in height from one end toward the other and being adapted to have their maximum height at the outer face of the wall, coping sheets extending from one channel to the next and having their ends supported by and slightly overhanging the channels between which they extend, the taper oi the channels imparting a slope to said coping sheets, one edge of each of the coping sheets being adapted to project beyond the face of the parapet wall at the front face of the building and having a downwardlyturned flange that is adapted to overlap the front face, the other edge of each of said sheets also being turned downwardly so as to be adapted to overlap the rear face of the wall, cap strips over each channel covering the gap between the ends of two adjoining sheets and overlapping said ends, screws securing each cap strip to the underlying channel, and studs adapted to secure each channel to the wall, the bottom of each channel being provided with a ridge raised above the level of the bottom in which the said screws are engaged and through which the said studs pass.

8. A coping structure for use on a parapet wall comprising spaced channel elements adapted to extend crosswise of the wall, said channel elements tapering in height from one end toward the other and being adapted to have their maximum height at the outer face of the wall, coping sheets extending from one channel to the next and having their ends supported by and slightly overhanging the channels between which they extend, the taper of the channels imparting a slope to said coping sheets, one edge of each of the coping sheets being adapted to project beyond the face of the parapet wall at the front face of the building and having a downwardlyturned flange that is adapted to overlap the said front face, the other edge of each of said sheets also being turned downwardly so as to be adapted to overlap the rear face of the wall, cap strips over each channel covering the gap between the ends of two adjoining sheets and overlapping said ends, screws securing each cap strip to the underlying channel, and studs adapted to secure each channel to the wall, the bottom of each channel being provided with a ridge raised above the level of the bottom in which the said screws are engaged and through which the said stud passes. the cap strip also extending down the flanges at both edges of the sheets.

9. A coping structure for use on a parapet wall comprising spaced channel elements adapted to extend crosswise of the wall, said channel elements tapering in height from one end toward the other and beingadapted to have their maximum height at the outer face of the wall, coping sheets extending from one channel to the next and having their ends supported by and slightly overhanging the channels between which they extend, the taper of the channels imparting a slope to said coping sheets, one edge of each of the coping sheets being adapted to project beyond the face of the parapet wall at the front face of the building and having a downwardlyf turned flange that is adapted to overlap the said front face, Ythe other edge of each of said sheets also being turned downwardly so as to be adapted to overlap the rear face of the wall, cap strips over each channel covering the gap between the Aends of two adjoining sheets and overlapping said ends, screws securing each cap strip to the underlying channel, and studs adapted to secure each channel to the wall, the bottom of each channel being provided with a ridge raised above the level of the bottom in which the said screws are engaged and through which `the said stud passes, the cap strip also extending down the flanges at both edges of the sheets, the ends of the coping sheets which overhang the channels being turned downwardly into the channels, the cap strip and screws serving to clamp the ends of the coping sheets against the channel on which they are Supported.

JOHN H. GOODWIN.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 2,250,951 Guignon July 29, 1941 2,281,092 Andrews et al Apr. 28, 1942

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