US1309698A - Paul h - Google Patents

Description

P. H. E. SCHERBNER.

G RATING. APPLICATION FILED MN- 29. l9l9.

Patented July 15, 1919.

INVENTOR strength. More specifically,

' 1) STATES PAUL H. E. SCHERIBNER, OF NEW YORK, N. Y.

To all whom it may concern:

Be it known that I, PAUL H. E. SCHERB- NER, a citizen of the United States of America, and a resident of New York, county and State of New York, have invented certain new and useful Improvements in Gratings, of which the following is a specification, reference being had to'the accompanying drawin s, forming a part thereof.

y invention relates to gratings and its object is to provide grating of simple and inexpensive construction and which has great the object is to improve the manner in making grating by means of which the cost of manufacturing is greatly reduced.

In order that my invention may be thoroughly understood I will now proceed to describe the same in the following specification, and will then point out the novel features thereof in the appended claim.

Referring to the drawings:

Figure l' is a plan view of a portion of a grating made according to and embodying my invention.

Fig. 2 is a sectional elevation of the grating shown inFig. 1 with some of its parts incompletely finished. The section of this figure is taken on the line 2-2 of Fig. 1.

Fig. 3 is a sectional elevation corresponding with Fig. 2 and illustrating one of the steps taken in manufacturing this improved grating.

Fig. 4 is asectional elevation of. the same structure taken .on the line 4.-4 of Fig.1, with some of the parts thereof incompletely finished.

Fig. 5 is a sectional elevation ing with Fig. 4, of construction.

Fig. 6 is a sectional elevation also corresponding with Fig. 4, showing a further modification of construction.

Fig. 7 is a sectional elevation corresponding with Fig. 2 illustrating another form of construction which also embodies this invention.

Fig. 8 is a sectional elevation taken at right angles to the section of Fig. 7, showing the form of grating illustrated in the latter figure.

correspondillustrating a modified form Like characters of reference designate corresponding parts in all the figures.

The grating comprisesa plurality of flat metallic strips spaced apart, some running in one direction and others at right angles Specification of Letters Patent.

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PatentedJuly 15, 1919.

Application filed January 29, 1919. Serial No. 273,748.

to the first. For the sake of differentiation I will call those parts which are designated by the reference numeral 10, longitudinal members, and those designated by 20, transverse members. The metal of the longitudi nal members is cut away at spaced intervals to form slots 11 terminating short of the edges. The slots are of approximately the same Width as the thickness of the members 20 but shorter than their vertical dimension. The metal remaining between the upper ends of the slots and the bers 10, is designated by 12. Slits 13 are cut downwardly from the edges of the slots, preferably diverging as shown in Fig. 4. The metal between these slits is bent outwardly as at 14, a sufficient amount to make the distance between these parts and the parts 12 slightly greater than the vertical dimension of the members 20..

Notches 21 are cut at spaced intervals in the upper edges of the members 20. These notches are of a width approximatelythe same as the thickness of the member 10 and of a depth approximately the same as the vertical dimension of the parts. 12.

The members 20 are passed through the slots in members 10, as shown in Fig. 3. After this the members 20 are raised into the positions shown in Fig. 2 with the metal at the sides of the notches overlapping the sides of the parts 12. Then the parts 14 are bent back under the lower edges of the members 20, as shown at 15 in Figs. 2 and 3. In this simple manner agrating of great strength is constructed.

The object of diverging the slits 13 is to increase the length of the lines 16. where the metal is bent in order to prevent weakening the metal, by bending it. A similar result may be attained in the way shown in Fig. 5, wherein rectangular parts 17 of the metal at the lower ends of the slots are bent outwardly and back again. If it is not deemed upper edges of the memnecessary to increase the length of the line bent outwardly and back again, are of sub-- stantially the same width as that of the members 20.

It is within the scope of this invention to use something other than integral parts of the members 10 to maintain the members 20 intheir raised positions. As an example ofanother way of accomplishing this result, I

have shown in Figs. 7 and 8 the longitudinal metal. In this case after the members have been inserted and raised, flat rods of of the members about the same width as that 20 and of a height about equal to the depth of the slots 21, are placed in the slots under the members 20. With this construction it may be desirable to prevent lengthwise displacement of the rods 25 and this may be done by upsetting their ends as at 26, or by bending their ends over the outer of the members 10 as shown at 27.

I have illustrated and described several forms of construction in order to show that I do not limit myself to any specific form or construction and I intend no limitations other than those imposed by the appended claim.

,What I claim is;

,G rating comprising a plurality of longitudinal members cut away at spaced intervals to form slots terminating short of their edges and with slits from the edges of the slots terminating below the slots at'distances apart greater than the width of the slots, a plurality of narrower transverse members passing through said slots and provided with spaced notches in their upper edges, the

arts of the longitudinal members between the slits therein being bent up under the transverse members to maintain the transverse members .in positions with the parts thereof adjacenttlie notches overlapping the longitudinal members at the upper ends of the slots therein. I

In witness whereof, I my hand this 24 day of January,

PAUL H. E. SCHERBNER.

have hereunto set

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