US1838349A

US1838349A - Tie member for protected metal sheets

Info

Publication number: US1838349A
Application number: US458833A
Authority: US
Inventors: Young James Howard
Original assignee: HH Robertson Co
Current assignee: HH Robertson Co
Priority date: 1930-05-31
Filing date: 1930-05-31
Publication date: 1931-12-29
Anticipated expiration: 1948-12-29

Description

YD 29 1931- J. H. YOUNG l 1,838,349

TIE MEMBER FOR PROTECTED METAiL SHEETS y Filed May 51, 1950 *Zaman-07' L 45 Fig. 1 represents a Patented Dec. 2v9, 1931 UNITED STATI-:s

Param* OFI-Ica i JAMES HOWARD YOUNG, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR T H. H. ROBERTSON COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA yTIE MEMBER.` FOB PROTECTED METAL SHEETS Application filed nay 31,

This invention relates to a strap or tie- ,member for attaching metal sheets, which form the roof orside 'walls of buildings or like structures; to the roof and wall supporting members ofthe buildings.

The improved tie member is especially adapted for use in buildings whose roofs and side walls are formed by metal sheets provided with asphalt lor like bituminous material 1o for protecting the metal sheets against the weather and acid and alkali fumes.

Protected metal sheets of the character described are largely employed in buildings having a framework of steel, and prior to the present invention these sheets have been fastened to the steel framework by straps or tiemembers composed of galvanized iron or steel strips, which are of limited life as compared with the asphalt-protected metal sheets, but

. which heretofore have been the most available devices fo` the purpose.

The present invention' has for its object to provide an asphalt-protected steel or iron tie member or strap, whose life is substantially the same as that o-f the protected metal sheets and which can be commercially andeconomically manufactured, and ,have its ends bent and provided with holes for the passage of bolts,rivets or like fastening devices, and in which the bent ends of themetal member of the strap are protected by a coating made of asphalt or like bituminous material, which seals the ends of said metal member and the Walls of the holes inthe bent end portions,

and which is united with and reinforces thel exterior protective coating on said strap or tie-member. 1

The improved protected strap or tie-member may and preferably will be produced in 4Q a novel manner as will be hereinafter described. I f l The particular features of the invention will lbe pointed out in the claims at the 'end-4 of this specification. y y

portion of thereof of a 1930. Serial No. 458,833.

- of the protected metal strip shown in Fig. 4,'y

to illustrate the preferred construction of the said strip; y

Fig. 6, a side elevation of a strap blank cuty out of the strip shown in Fig. 4 and provided with bent ends through; L

Fig. 7, an elevation llike Fig. 6 showing the bent ends covered by the end-sealing members to form the completed strap or tie member, illustrated in Figs. `1 to 3;

Fig. 8, a plan view of the strap shown in Fig. 7

Fig. 9, an enlarged cross section on the line- 9-.-9, Fig. 8, yand- FigflO, an enlarged longitudinal section on the line 10, Fig. 8, showing the end sealing member as completely filling the hole in the end of .the strap. y p

. Referring to Figs. 1 to 2, 10 represents an asphalt-protected metal sheet which is tied t0 a purlin 'or roof-supporting member 12 of a building or like structure by astrap or tie-member 13 embodying this invention.

having holes punched there- The tie-member or strap 13 is shown in detail in Figs. 5 to 10 inclusive and comprises essentially a relatively narrow and thin flexible metal member or core 14, a seamless, tubular member 15,;preferablya braided tube 4oftextile material, which is saturated with asphalt or like bituminous materiall, pref@ erably a relatively rhighfm'elting point but soft asphalt,and enveloped by aflevziible co'vf flanges. The sealing member 21 is united with the protective coating 17.

The strap or tie-member 13 may be commercially and economically made as will now be described.

A relatively long or continuous length of metal Strip substantially oblong in cross-section and plain or uncoated or as may be preferred, provided with a coating 23 of asphalt is fed through a braiding machine, not shown,

but of suitable size to enable the metal strip 14 to be passed through the machine and have braided thereon the fibrous tubular member 15 which is substantially oblong in cross section.

The metal strip 14 covered by the fibrous tubular member 15 is then Wound into the form of a coil and subjected to the action of a bathv of asphalt, preferably maintained at or about a temperature of 300 F. until the fibrous tubular member 15 is saturated with the asphalt, which also asses through the interstlces of the @tubular brous member and covers the metal core 14 if a plain core is used, or unites with the asphalt coating on the metal strip or core 14, if the latter is coated with asphalt before being run through the braiding machine. The coil is then allowed to cool and is then run through coating rolls, not shown, which apply the protective coating 17 to the' asphalt-saturated tubular fibrous member.

The protective coating 17 may and preferabl will be of stearin pltch type.

he continuous strip produced in this manner is of material length and is represented in Fig. 4 and is ofsuch length as to enable it to be cut up into suitable lengths to form strap blanks 30, represented by the sections lor lengths between the lines 3l in Fig. 4, and

a portion of which strap blank is represented in section in Fig. 5.

The strap blanks 30 of the coated strip illustrated in Fig. 4, intermediate the endmost blanks have both ends of the metal core 14 and of the tubular fibrous member exposed, after the manner represented in Fig. 5..

The strap blanks 30 are then bent at their Vends to provide the blanks with the end fi'angesv` 18 which are punched to form holes 19 for the passage of the bolts 20 or like fastening devices.

flanges 18 having holes A strap blank 30 provided with the end flanges 18 having the holes 19 is illustrated in Fig. 6, and such strap blank has the nds of its metal core 14 and the walls of the holes 19 in said core exposed to the corrosive action of the Weather and acid and alkali fumes, which Would be objectionable, and these exposed ends are then sealed and protected by the sealing members 21 of asphalt, which may be effected by dipping the ends of the strap blank into heated or melted asphalt or like bituminous material.

The sealing asphalt members 21 may partially fill the holes 19 in the strap blank after the manner represented in Fig. 9, or they may completely fill the holes as represented in Fig. 10, thereby providing a member of asphalt which co-operates with the bolt 20 passed through the hole and serves to prevent moisture passing along the bolt and gaining access to the metal core of the corrugated protected metal sheets 10.

The end-sealing member 21 of asphalt overlaps and unites with the protective coating 16 and is thus firmly retained in place and renforces the said coating at the ends of the strap or tie-member. v

In Figs. 7 to 10 inclusive the end-sealing member 21 is illustrated on an enlarged scale so as to enable it to be clearly shown and its function understood.

It will be observed that by the process herein described, the straps or tie-members may be commercially produced at a minimum cost.

What is claimed is:

1. A tie-member of the character described, comprising a tie-member blank having a flexible corrodible metal core'whose ends are normally exposed, a flexible tubular fibrous member enveloping said metal core, a flexible weather-resistin bituminous protective coating covering the tubular fibrous member and leaving the ends of said metal core uncovered, and a bituminous sealing member covering the normally exposed ends of said metal core and overlapping and united with said bituminous protective coating.

2. A tie-member of the character described, comprising a tie-member blank having a fiexible corrodible metal core whose ends are normally exposed, a flexible tubular fibrous member enveloping said metal core, a flexible weather-resisting bituminous protectiveV coating covering the tubular fibrous member and leaving the ends of said metal core uncovered, said blank having at its ends flanges provided with holes extended through said protective coating, tubular fibrous member and said metal core, and a bituminous sealing member covering the normally exposed ends of the said metal core and extended into the holes therein and'overlap- Bing and united with the eyond said holes.

3. A tie member of the character described, comprising a tie-member blank of corrodible metal substantially rectangular in cross section and havin normally exposed ends, a exible braided brous member enveloping said metal core and substantially rectangular in cross section, an asphalt coat ing saturating said braided fibrous member and covering said corrodible metal blank, a flexible protective bituminous coating of substantial thickness covering said asphalt coating, and a bituminous sealing member covering the normally exposed endsI of said metal core and overlapping and united with said protective coating.

In testimony whereof, I have signed my' name to this specication.

JAMES HOWARD YOUNG.

protective coating