US1377494A

US1377494A - Method of making cellular elements for radiators or the like

Info

Publication number: US1377494A
Application number: US169683A
Authority: US
Inventors: Livingston D Mcra
Original assignee: Individual
Current assignee: Individual
Priority date: 1917-05-19
Filing date: 1917-05-19
Publication date: 1921-05-10
Anticipated expiration: 1938-05-10

Description

D McR. LIVINGSTON.

METHOD OF MAK|NG CELLULAR ELEMENTS FOR RADIATORS OR THE HK'E. APPLICATION FILED MAYH), 1917. RENEWED JULY 23, 1920.

1,377,494. v Patented May10,1921

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D MGRA LIVINGSTON, OF NEW YQRK, N. Y.

. METHOD OF MAKING CELLULAR ELEMENTS FOR RADIATORS OR THE LIKE.

Specification of Letters Patent.

Patented May 10, 1921.

Application filed May 19, 1917, Serial No. 169,683. Renewed July 23, 1920. Serial No. seems.

T 0 all, whom it may concern:

Be it known that I, D MCRA LIVINGSTON, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved Method of Making Cellular Elements for Radiators or the like, of which the following is a full, clear, and exact description. 7

Theinvention in this application relates to the method of making cellular elements for radiators or the like.

My earlier filed 'co'pending application, Serial No. 61995, filed November 17, 1915, patented September 11, 1917, No, 1,239,485,

' I reissued June 26, 1919, No. 1 1826 illustrates bers for spacing the cells when assembled cellular elements made according to my method, the cellular element being used in a radiator.

In the present application I will describe the same method of making cellular elements with respect to an element particularly designed for use in false fronts for radiators and a false front constructed of such elements. r

The object of the present invention is to provide a method of making cellular elements for the purposes referred to wherein a sheet of single thickness is deformed by expanding portions thereof to present memandmore specifically includes the making of such an element in a fashion so that the front edge of the same, when completed, has a presentable appearance and so that when assembled with other similar elements a smooth regular front will be presented.

Reference is to be had to the accompanying drawingforming apart of this specification in which similar reference characters 1nd1- cate corresponding parts in all the views, it

being understood that the drawing is merely illustrative of examples of the invention.

Figure 1 is'a front elevation of a frame of a radiator front and a portion of a cellular structure therein embodying my invention;

F ig. 5 is a fragmentary face View showing a portion of one of the expanded elements; Fig. 6 is a fragmentary perspective view of the expanded element prior to turning back the front edge thereof as in Fig. 4; v Fig. 7 is a section corresponding with Fig.

3 but showing the arrangement of the expanded elements for producing a pointed front. s i a i In Fig. 1 the numeral 10 indicates a suitable frame having the general appearance of a radiator frame or casing and provided with suitable means to secure the same over a radiator, there being shown side brackets 11 adapted to be secured by the bolts employed for fastening the radiator to the frame of an automobile. In the top of the frame 10, a hole is produced to accommodate the usual neck A of a radiator. Within the frame 10 a hexagonal cellular structure 12 is secured The cellular structure 12above referred to is, in the case of a false front, entirely made up of similar cellular elements produced by suitably expanding a sheet of metal of single thickness. The sheet is brought to the form 2 shown in Figs. 5 and 6 by suitable dies which cut equally spaced slits in the same and which deform the material between the slits in the manner shown. The deformed sheet comprises similarly

shaped deformations

13 and 14. alternately located on opposite sides of the plane of the sheet in laterally extended relation. At the front margin of the sheet the deformation 13 is placed on the same side of the plane of the sheet as the adjacent deformation 14:. The slit 13* between the

dc formations

13 and 14 may be made before or after the deforming step. The deformations in the form shown are in outline the connected sides of one-half of a polygon which,

as here shown, is a regular hexagon, although any other form of a polygon which will properly nest may be obtained with different shaped dies.

. After the sheet has been brought to the form shown in Figs. 5 and 6 the front de-' formation 13 is brought to the other side of the plane of the sheet in order that the edge view of the sheet may simulate a series of polygons. One way of doing this is shown in Fig. 4 wherein the spacing portions or unexpanded zones 15 of the sheet, 2'. 6., the portions between the rows of deformations, are folded or bent flat upon themselves. This brings the deformation 13 alongside the deformation 13 and directly opposite the deformation 14. An end view of the sheet then represents a series of hexagons spaced a distance equal to one side of the hexagon and whose transverse edges are in the same plane. A sin le hexagon so made is shown in Fig. 4:, whi e in Fig. 3 a plurality of cellular elements shown as assembled provide a smooth front. The deformations 14:-14 of each element are back to back with the corresponding deformations ofthe other element, the deformations 13 being brought similarly against the deformations 13 of the other element and the folded over deformations 13 being similarly arranged. The assembling of such a false front is accomplished by taking a suitable number of cellular elements made up as above described and of the proper lengths and reversing the alternate elements so that they properly nest as indicated in Fig. 2 with the corresponding deformations of adjacent plates back to back. The turning back of the front edge of the plate as in Fig. 4 is highlydesirable for a fiat front but where a pointed front is to be produced, a section of one-half of which is indicated in Fig. 7 and designated 12, the turning back of the front edge is not absolutely necessary because each succeeding plate from the center toward each side is stepped back a distance equal to the width of an expanded

element

13 or 14 and the absence of complete hexagonal front edges on the respective plates is not noticeable.

The cellular structure described, it will be seen, possesses substantial strength owing to the broad direct contact surfaces between the various members 13, 1d of the respective plates. Since there is no question of radi ating efliciency to be considered, the contacting of the expanded members possesses no disadvantages. When a cellular element made according to the process before described is to be used in a radiator, it takes the form shown in my above described patent.

I wish to State in conclusion that although the illustrated examples constitute practical embodiments of my invention, I do not limit myself strictly to the mechanical details herein illustrated, since manifestly the same can be considerably varied without departure from the spirit of the invention as defined in the appended claims.

Having thus described my invention I claim as new, and desire to secure by Letters Patent:

1. The method of forming cellular elements from a fiat sheet of single thickness for a purpose specified; which comprises providing a longitudinal margin of the plate with equally spaced deformations which define the connected sides of one-half a polygon, one of these sides being in a plane parallel with the plane of the sheet, the deformations being spaced by portions of the sheet whose lengths are substantially equal to the length of the parallel side aforesaid; longitudinally slitting the deformations; and thereafter positioning one-half the marginal deformations relative to the other half thereof so that the edge view of the sheet simulates a series of polygons.

2. The method of forming cellular elements from a flat sheet of single thickness for a purpose specified; which comprises providing a longitudinal margin of the plate with equally spaced deformations which define the connected sides of one-half a polygon, one of these sides being in a plane parallel with the plane of the sheet.

the deformations being spaced by portions of the sheet whose lengths are substantially equal to the length of the parallel side aforesaid; longitudinallyslitting the deformations; and thereafter bringing one-half of the marginal deformations to the other side of the plane of the sheet.

3. The method of forming cellular elements from a flat sheet of single thickness for a purpose specified; which comprises providing a longitudinal margin of the plate with equally spaced deformations which define the connected sides of one-half a polygon, one of these sides being in a plane parallel with the plane of the sheet, the deformations being spaced by portions of the sheet whose lengths are substantially equal. to the length of the parallel side aforesaid; longitudinally slitting the deformations; and thereafter bring the outer half of the marginal deformations to the other side of the plane of the sheet.

4. The method of forming cellular elements from a fiat sheet of single thickness for a purpose specified; which comprises providing a longitudinal -margin of the plate with equally spaced deformations extending to one side of the plane of the sheet each of which defines the three connected sides of one-half a hexagon, the deformations being spaced by portions of the plate whose lengths are equal to the central side of said half hexagon and which are disposed at an angle of to the connected sides of the adjacent half-hexagon's; slit- 120 ting the deformations; and thereafterbending the spacing portions fiat upon themselves on a line connecting the slits in the deformations.

5. The method of forming cellular elements from a flat sheet of single thickness for a purpose specified; which comprises providing a longitudinal margin of the plate with equally spaced deformations extending to one side of the plane of the sheet each of which defines the three connected sides of one-half a regular hexagon, the deformations being spaced by portions of the plate whose lengths are equal to one side of said hexagon and which are disposed at an angle of 120 to the connected sides of the adjacent half-hexagon; slitting the deformations; and thereafter bending the spacing portions flat upon themselves on a line connecting the slits in the deformations.

6. In the manufacture of polygonal cells,

for a purpose specified, from a sheet of single thickness the margin of which has a longitudinal series of half-polygons extending to one side of the sheet, said halfpolygons being separated by spacing portions and further being longitudinally slitted, the step which consists in folding a longitudinal portion of the margin along a line connecting said slits toward the other side ofthe sheet so that the spacing portions separating the half-polygons are brought into close contact.

D MoRA LIVINSTON.