US2266206A - Adjustable cantilever bracket - Google Patents

Description

Patented Dec. 16, 1941 UNITED STATES] PATENT OFFICE ADJUSTABLE CANTILEVER BRACKET Hartley H. Jackson and Leonard Milgram, v Y Kansas City, Kans.

Applicationjanuary 24, 1941,'seria1No. 375,832

3 Claims.

Our invention relates to an adjustable cantilever bracket. It has been proposed to provide brackets to be-used for supporting shelving and the like, many times. The constructions of the prior art have been of limited strength and some of them have been diicult of manufacture.

One object of our invention is to provide an adjustable cantilever bracket which is at once light and strong, can be simply and cheaply manufactured, and 4readily adjusted without the necessity of tools.

Other and further objects of our invention will appear from the following description.

In the accompanying drawing which forms part of the instant specication and is to be A `read in conjunction therewith and in which like reference numerals are used to indicate like parts Figure 4 is afsectional view taken 'on the line 4-4 of Figure 2.

Referring now to the drawing, the supporting member I is formed of a channel member having anges II and I2, and a web I3. The web Y I3 is formed with a plurality of cross shaped slots I4. The bracketl, per se, has a cross sectional shape of an angle iron, the vertical leg of which, I6, tapers outwardly from the support. IThe end of the leg I6 adjacent the support Ill, is

formed with a bifurcation, comprising an upper member I'I'and av lower member I8. A pair of pins IS `and 2n. are provided, as can readily be seen by reference to the drawing. The pin I9 is of a width suicient to enter the horizontal portion of the cross shaped slot I4. The pin 20 is of such length that it will span the `web I3 and contact theflanges II and I2 of the supporting member I0. This can readily be seen by reference to Figure 4. Y Y

' The manner in whichthe bracket is inserted in the supporting member is readily apparent from the drawing. The lower member I8 ts into the vertical portion of the cross shaped s lot just below the horizontal portion of the adjacent cross shape'dslot, immediately above. The pin I9 enters the horizontal portion of the cross shaped slot. The bracket will then be allowed to move downwardly until the lower edge ZI or the member l1 contacts the base of the slot The turning moment is resisted 'bythe web I3 and the flanges II and I2, due to the fact that the pin` 20 spans the member I0 from web to Our bracket has many uses.v The supporting' v member I0 may be secured against a wall or the like and the brackets used to support shelving.

The supporting member II) may ,be in a` show case and the brackets may support steel shelving or the like. The brackets may be adjusted without any tools. vThey are strong and light, and yet inexpensive to manufacture. Once adjusted, they are held rmly in position with a minimum danger, against displacement, by accidental blows. t f

It will be understood that certain features and subcombinations are of utility and may be employed without' reference to other features and sub-combinations. This is contemplated by and is within the scope of our claims. It is further obvious that various changes may be made in details within the scope of our claims without departing from the spirit of our invention. It

is, therefore, to be understood that our .invenslots, a bracket member having an end formed with a pair of projecting lugs spaced to4 enter the vertical portions of a pair of said crossshaped slots, a pin extending transversely through the upper of said projecting lugs, said pin having a length less than the length of the y horizontal portion of a cross-shaped slot, and a into which the pin I9 was tted. The pin I9 contacts the rear side of the web I3, while the pin 2l! lies across the front of the supporting member,

' 3. A support as in claim 1 in which said bracket is formed with a vertical leg and a horizontal leg and said vertical legis tapered outwardly and upwardly from adjacent said projecting lugs.

HARTLEY H. JACKSON. LEONARD MILGRAM.

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