US2373875A

US2373875A - Display mount

Info

Publication number: US2373875A
Application number: US461982A
Authority: US
Inventors: Carroll N Cross
Original assignee: Individual
Current assignee: Individual
Priority date: 1942-10-14
Filing date: 1942-10-14
Publication date: 1945-04-17
Anticipated expiration: 1962-04-17

Description

Patented Apr. 17,1945

u 1,373,375 DISPLAYIMOUNT a Carroll N. Crcss,Middlebo1-o,Mass. Application October- 14, 1942, Serial No. 461,982] 1 (c1. 40-1-1521) 5 Claims.

This invention relates to display mounts; More particularly; the invention relates to reenforced display mount body construction, which whilein expensive and simple in construction, is effectivei in overcomingthe warping tendencies inherent in such bodies made of light-weight cardboard stock. a v Great difliculty has been encountered in the construction 'of display mounts composed of two or more substantially coextensive boards because of the tendency of such structures tolwarp. These 7 tendencies have been particularly marked when the boards have been joined togetherbygluing,

When glue is used, it is often found that the warp-v age in boards so joined is much in excess of [the degree to which a single board of equal size will warp. The method of joining two or more sub divided. Thus,in a construction wherein the -v body is divided into three zones including margistantially coextensiveboards by binding them] about their edges with a flexible. binding material results in a constructionzthat eliminates a large amount of the warpage in the marginal zones, but this method is subject to the disadvantage that such boards willshow a greater tendency to warp or bulge in their central areas.

It is therefore the primary object of this inven' tion'to' produce a display mountbcdy construction of two or more boards wherein the warping char acteristics heretofore experienced willbe substantially eliminated.

The primary objectof the inventionis achieved by superimposing on one facjeof a display mount base board of light-weight stock that in itself is normally subject to warping,- a' smaller jreenforcing board, and then lining the superimposed boards with a flexiblelining material thateX- tends over the edges of thesmallerboard'and at- I taches the same to the surface ofthe base board with at least some of itsedges spaced inwardly from the corresponding edges of the base board.

Thisconstruction results in a display mount body having zones of difierent thickness that efiectively minimize the usual warping tendencies in mount constructionsq Itmight be supposed that the formationof mount bodies in this manner would result'in'a construction thatis merely strengthened andjre. enforced to a degree proportional to the'add'ed bulk or area of the reenforcing board This vention, howevenis based on the discovery. that I the resulting mount body possesses non-warpin characteristics bearing no real relation to the size or bulk of the reenforcing body but I one.

which; on the other hand, possesses non-warping tendencies related more nearly to the number of difierent thickness zones into which the body is I ever, coincidentfi e.,, in agreement with as to,

nal zones of single board'thickness and a medial zone of double board thickness, the marginal zones will, exhibit warping tendencies that are not as great'as the'warping tendency in a singleboard of equal size. Themedial double zone will exhibit the minimized warping tendency of two boards of the size of the centrally positioned reenforcing "board. Thelmarginal zones of single thickness are, of course, further reenforced by contact with the outer edges oi the smaller board which prevent substantial warping of that area of the singlemarginalzones adjacent the medial zone. The utility of the invention taught herein is emphasized by, the fact that the cardboard stock of which mounts of this character are constructed will normally warp substantially in proportion to the square-of thearea. v a

These and other objectsand advantages of the invention willvbe morefully disclosed in the fol-,

lowing description which may be read with regard to the accompanying drawing in which like reference numerals indicate like parts, and in which:

Figure 1 is a rear elevational view of one embodiment of the invention;

Figure 2 is a cross sectionalview on line 2-2.,

of Figure 1; Y r s Figure 3 is a rear elevational view of a modified form ofthe invention;

Figure 4 is a cross sectional ofFlgure3; p to Figure 5 is a rear elevational view of a further modification of the invention;

FigureSis a cross sectionaliview on line 6 -6 of Figure 5;

Figure 7 is an elevational of afurther.

modification of the invention; and

Figure 8 is a cross sectional View on line 87-8 o of Figure '7. H

In Figures 1 and 2 there is illustrated one embodiment ofthe invention whereinfa base board 40 is reenforced by the addition 'fof a smaller reenforcing board l2 attachedtogthe rear face thereof. The smaller board I2 one edge, l4 that is coextensive with the bottoim edge l6 of the base boardv l0 and it has two oppositely dis- I posed edges l8 and 20 that are shorter than the corresponding

opposite edges

22 and 24 of the base board; These edges l8 andf2 ,ll are, howposition) throughouttttheir length with the cor-, respondingbase board edges '22 and. 'A thin ,fiexible binding material 26 extends over the edges of the smaller board I! and joins 'the'same view on line 4-4 to the base board I0. In the preferred form of thisembodiment of the invention the lining material 26 extends about the marginal edges of the base board I and terminates on the face of the face board 28 at the front of the mount. This construction divides the mount body into a, small thin zone 30 and into a larger thicker zone 32.

A mount supporting easel 34 adapted to swing angularly about one or more score lines 36 may be formedin thebod'y ,ofIthe reenfor cing board I2, and in such case an"easel locking tongue 38 that differ in size.

inserting passage is preferably closed. by means of a closure member 42. The picture-inserting passage at the upper margin 40 of ther'eenforcing. board I2 is formed by slotting the base.

board I0 transversely for a sufllcient distance to accommodate. the width oifla, picture or other indicia to be carried on the face of the base board. The picture-inserting passage is 0011-, veniently closed by means ofthe closure 42 which is formed from a. marginal-portion of the rear board. f2 by cutting theyrear board and the covering sheet material'finwardly from a margin of the rear board to deflne .a severed portion that is hingedly connected to the base board I0 by means. of the flexible covering material extending over the exposedfaces' of the baseboard and the rear board. I V

In that form of construction shown inEigures 3 and 4 the base board has attached to the rear face thereof a smaller board 52 which has oppositely disposed horizontal edges 54 and 56" that are shorter than the corresponding opposite horizontal base board edges 58 and 60. The edges 54 and 56"are,.however, coincident throughout the length thereof with the corresponding base board edges 58 and 60. The vertical edges 02 and 64. are substantially spaced from oppo site vertically disposed. base board edges 66 and 58'. This construction divides the mount body into relatively thin

marginal zones

10 and 12 and a thicker medial zone 14. In this form of the invention, as in the other embodiments thereof, a thin, flexible binding material 16 extends over the reenforcing board 52 and about the edges of the base board 50 and terminates on the margins of a face board I8 H I A mount supporting easel maybe formed in the body of the reenforci'ng board 52 and this easel which is adapted to swing angularly about one or more scorelines82 is adapted to be held in mount supporting position by means of a locking tongue 84"t'hat swings angularly about one or more score lines 86.

A picture-inserting slot 88 extends through one of the marginal zones to permit the insertion. of a picture 90 as shown in Figure 4.

In. that form of the invention illustrated in Figures 5 and 6, the base board 92 is reenforced by means of a smaller reenforcing' board 94 that is attached to the rear face of the base board by means of a flexible binding. material 96' that extends over the edges of the smaller reenforcing board 94 and about the'edges of the base board 92. The lining material 96 terminates on the face of aface board 98. In this form of the invention the horizontally disposed .edges I00. and I02 of. the reenforcing board 94 are substantially. coextensive with the horizontal zone while the larger zone H2 is relatively thin.

In this particular form of the invention a separately fabricated mount supporting easel H4 is attached to thebase board 92.by means of rivets II6. Theeasel. I'l4 isiadapted to: swing angularly into mount supporting position about a. score line H8 and the same may be latched in mount supporting position by means of a locking! tongue I20 that is adapted to move angularly about ascore line I22.

In that form of the invention illustrated in Figures 7 and Bra-base board I30 is reenforced by the addition of a smaller reenforcing board I32'which herein is illustrated as being attached toone facethereof by means ofa, flexible lining material 134 that extends over the back of the. base-board I30, around. the marginal'. edgesthereof; over the. marginal edges of the 118611-- forcing board I32.and which terminates. on. the; face or the reenforci'ng board I32 at. a point. somewhat inward of the margins thereof. Alining trim I36 be glued. over the marginal edges of the lining. at-34 and. over the. facial surface of the reenforcing board [32. g

In this embodiment of the invention the. marginal edges I38 I39, [46,, and. H2 or the r'een forcing. board I32 are allinwardly spaced with respectto the. marginal edges [44,. I45, I41, and" I48,.-respectively, of the base board I30. This construction in effect results in a mount that ineludes five different thickness zones, these zones being. the marginal zones I50, I52, I54, of singlethickness and the central zone I58. com

posed of. a double thickness of board.

Herein the flexible. lining material. that joins the ree'nforcing. boards .to the. base boards has been. illustrated as. extending, about. the marginal.

edges of the base board, but this construction has been shown only f'or purpose of illustration because the inve'ntion-f'is equallyefiective if. the lin-.

ing material does. not extend about the edges of the base board in those constructionswherein a joint can be made between the baseboard and reenforcing. boards without the necessity ofbinding the base boards about their marginal edges; the lining material being lmportant herein to attach the smaller board to the base board and for v thi's'purpose it need only be attached'to andextend over the inwardly spaced margins of the smaller board and". onto the outwardly extending margins of thebase board. v The embodiments of the invention herein illustrated have been selected for the'purpose of illustration only and to make it clear that the invention is capable of numerous embodiments and such illustrations'are not to be considered as limitations on the terms of the following claims.

I claim:

1. A picture mount comprising a base board, a

face, sheet material adhesively' secured over the i faces of the superposed boards to bridge from the front and rear'boards to the' projecting portions of the base board to secure the boards together," a sight opening cut through the front board, and 1' the rear board and its covering having cuts the'rethrough extending inwardly from a margin of said rear board beyond which the base board pro- 2. A picture mount comprising a base board,

an apertured front board secured thereto and forming a frame to overlie the-margins of a pictureset on said base board, a rear board substantially shorter in one dimension than said bast board loosely superposed thereon, and means for securing the rear board to the face board comprising sheet material which extend over the stock being normally subject to warping, a substantially smaller board loosely superimposed on one face of said base board, said smaller. board having twooppositely disposed edges coincident throughout their length with two similarly disposed opposite edges of said base board, a thin flexible lining material attached tothe face of said boards and extending over the edges of said smaller board J'oiningthe same to said base board thereby forming a mount body having zones of different thickness minimizing warping tendencies of said base board, a picture-inserting passage through said base board adjacent an edge of said smaller board beyond which the base board projects, and a centrally apertured face board overlying the marginal area of the opposite face stantially smaller board loosely superimposed on one face of said base board, said smaller board having an edge coextensive with an edge of said base board and having two oppositely disposed edges shorter-than but coincident throughout I their length with two oppositely disposed edges of said base board for retaining a picture or the like in contact with said face.

hIn a display mount or the like, a picturesupporting base board composed of light-Weight stock being normally subject to warping, a subof said base board, a thin flexible lining material adhesivelyfattached to the face of said boards and extending over the edges of said smaller board joining the same to said base board'there-by forming a mount body having zones of different thickness minimizing warping tendencies of said base board, a picture inserting passage through said base board'adjacent an edge of said smaller board beyond which the base board projects, and a centrally apertured face board overlying the marginal area of the opposite face of said base board for retaining a picture or the like in contact with said face. v

5. In a display mount or the like, a picture-supporting base board composed of light-Weight stock being normally subject to warping, a substantially smaller board loosely superimposed on one face of saidbase board, said smaller board having oppositely disposed horizontal edge that are shorter than but coincident with oppositely disposed horizontal edges of said base board and opposite vertically disposed edges that are'substantially spaced from opposite vertically disposed edges of said base board, a thin flexible lining material adhesively attached to the face of said boards and extending over the edges of of said smaller board beyond which the base board projects, and a centrally apertured face board overlying the marginal area of the opposite face of said base board for retaining a picture or the like in contact with said face;

CARROLL N. CROSS.