US1275774A

US1275774A - Superimposable bed.

Info

Publication number: US1275774A
Application number: US23323918A
Authority: US
Inventors: Joseph Silvester
Original assignee: Fort Pitt Bedding Co
Current assignee: Fort Pitt Bedding Co
Priority date: 1918-05-08
Filing date: 1918-05-08
Publication date: 1918-08-13
Anticipated expiration: 1935-08-13

Description

J. SILVESTER.

SUPERIMPOSABLE BE D. APPLICATION FILED MAY 8' 191a.

Patented Aug. 13, 1918.

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I. SILVESTER.

SUPERlMPOSABLE BED. I APPLICATION FILED MAY BI 191'8.

LQWJM. Patented Aug. 13, 1918'.

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r TED STATES PATENT OFFICE.

JOSEPH SILVESTER, 0F PITTSBURGH, PENNSYLVANIA, ASSIGNOR T0 FORT PITT BEDDING COMPANY, OF PITTSBURGH, PENNSYLVANIA; A CORPOR TION OF rnnnsvtvama.

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SUPERIMPOSAIBLE BED. v

Patented Aug. 13. 1918.

Application filed May s, 1918. Serial No. 233,239.

To all whom it may concern:

Be it known that I, JOSEPH SILvEsTER, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Superimposable Beds, of which the following is a specification.

This invention relates to superimposable beds the legs of which are provided at either end with an opposite part of complementary locking means or the legs of which are provided at their lower ends with one complementary part of locking means and at their upper ends with the other complementary part of locking-means, whereby one bed may be positioned over the other through registration of the complementary parts of the locking means; and it comprises certain improvements in interlocking joints for superimposed structures wherein bars or posts, advantageously of angle-iron construction are arranged to be securely locked together through the provision of locking means on one complementary part and lockengaging means on the other complementary part, the locking means and lock-engaging means advantageously comprising, when the posts are of angle-iron construction, a slot in one face or side of one angleiron and a projecting lug on one face of another angle-iron, the lug being adapted to register with the slot and the sides or faces of the angle-irons being arranged to fit flush against each other, certain detail rests or supports being provided on the interior faces of the angle-irons to assist in alining the parts and rigidly holding them in alined position; all as more fully hereinafter set forth and as claimed.

The provision of means for rigidly securing superimposed structures together has long been a desideratum in the art to which this invention relates. It has been proposed to'bolt sectional posts together and it has been proposed to pivot two or more posts together with a view toward providing a foldable or knock down structure. It has also ben proposed to provide foldable cots or the like with two pivoted sections arranged in relation to one or another in such a manner that when opened one cot will be superimposed with respect to-the other,

but these structures do not have the requisite strength or rigid structure to prevent movement while in use with the result that they are practically useless for their purposes.

In the present invention I have provided a plurality of posts which may serve as the legs and uprights of bedsteads or other superimposable structure. .When applied to a bed the posts are provided with the usual side, head and foot rails suitably braced withrespect to these posts or legs. Two or more of these posts may be used, but I shall describe my invention as applicable to four legged or four-post beds. At the ends or the head and foot of the bed, the posts are advantageously of lL-angle-iron construction, with locking means attached thereto. The locking means may comprise a lateral projection, such as a lug rigidly secured near the top of the side of the angle-iron which is-parallel to the side rail of the bed and a recess or slot on the lower end, the lug of the upper end being adapted to ride in the slot of the lower end of the post of another section. Advantageously I provide a cross rod which maybe of angle-iron construction connecting two opposite posts of the head or foot of the bed and near the bottom of each head post, and inside the angle-iron, I provide a knee piece, brace or rest adapted to embrace the cross rod of the lower head posts and positioned with respect to the slot in such a manner that when the lug of the lower or other post engages the top of the slot the brace or knee piece will engage or embrace the cross rod; and the knee piece is advantageously of such dimension that its downwardly projecting face will also engage the outer edge of the inner face of the angle-iron of the lower post. Where four posts are used, I may dispense with the slot and lug connection at either the head or foot, relying upon the cross rod of the lower posts and the knee post or brace of the upper post for securing the superimposed or complementary posts of the sections together. When the slot and lug are used on all four posts it is necessary to spring the posts slightly to connect them; when used only on the head or only on the foot posts the beds may be assembled by tilting at one end to cause the slots to ride over the lugs.

In the accompanying drawings I have of my invention.

shown one form of a specific embodiment In this showing Figure 1 is a perspective view showing three sections of my superimposed bed or bunk secured together;

Fig. 2 is a detail perspective on an enlarged scale showing the two complementary posts or legs;

Fig. 3 is a segmental detail perspective of one of the joints illustrating the manner in which the knee brace carried by one angle-iron overlaps and, engages the cross rod carried by the other angle-iron; and

Fig. 4 is a front view, knee brace being in section, of one of the joints or compound legs of the head of the bed.

In the drawings the head posts are indicated by the reference numerals 1 and 2, while the foot posts are indicated by reference numerals 3 and 4. The legs are braced by the side angle-iron rails 5 and 6 which are riveted at- 7 and 8, and by lower foot andhead braces 9 and 10. Struts 11 from the foot and head posts to the side rails and struts 12 from the foot and head posts to the foot and head cross rails may be provided'for adding rigidity to the structure. The cross rail at the foot is advantageously an angle-iron 13 riveted to opposite foot pieces or posts 3 and 4 and having horizontal faces 14 and vertical faces 15. These may be provided at the head and 001. of the bed but are shown only at the oot.

The opposite foot posts 3 and 4 carry at their top angle-irons 16 with horizontal faces 17 and vertical faces 18, while at their lower ends they carry knee pieces or braces 19 advantageously made of two pieces of L-angle-iron riveted together at 20. When one section of the bed or bunk is superimposed upon another, these knee pieces or braces 19 rest upon and embrace the cross rods or rests 16 of the lower section and these knee pieces 19 are advantageously of such a width as toalso embrace the edges of the angle-irons of the legs of the lower sections, as is shown at 21 '(Figs. 1 and 2). One angle-iron of the upper section fits around the angle-iron of the lower section and thus in effect when the beds are superimposed comprise one continuous post.

Each sectional post or complementary part of each leg (when the legs in assembled position are considered as a whole) is provided at the bottom with a curved slot 22 extending from the outer edge of the face of the angle-iron which is parallel with the side rail and upwardly a short distance; while at the top it is provided with a lug 23 having an enlarged head or end 24:. The shank portion of the lug rides in the slot at the bottom portion of the leg which is to be attached and rests at the top portion of the slot, the head preventing sidewise or lateral motion. The knee piece 19 carried by each angle-iron leg at the lower end embraces the cross rod 16 at each end of the bed and serves as a stop to limit the downward movement of the upper section when it is placed in position on the lower section, the knee piece being positioned with respect to the slot in such a manner than when the shank of the lug of the other complementary section engages the metal at the end of the slot, the knee piece or brace will engage or rest upon the cross rod 16. This makes a secure joint.

When. a four-post or four-legged bed is to be assembled, it is only necessary to position the lower section and then aline the upper section in position by permitting the slots to ride over the shanks of the lugs and lower the other end or foot of the bed so that the angle-irons of the upper section embrace the angle-irons of the lower section. Ordinarily the posts should be sprung apart slightly to connect the parts, except when the lug and slot connections are used at one end of the bed only. It is best to slant the legs of each section so that they converge at the top to a slight extent to allow for the thickness of the angle-iron of the next section to be positioned. The posts are provided with what may be termed complementary locking means, one part being carried by the posts at their lower ends. Any section can thus be superimposed on any other section, and the whole comprises a simple knock-down bed.

What I claim is 1. In a knock-down bed a plurality of sets of posts, each post provided with a flat face and the posts of one set each having formed therein a slot extended from one side of said face upwardly in a curved direction for a short distance, and each flat face of the other set of posts being provided with a laterally projecting lug adapted to register with said curved slot, and additional means connected to the flat faces of the posts to prevent direct vertical or direct lateral displacement of the posts while the slot and lug are in registration.

2. In superimposable structures, a plurality of angle-iron supports, one side of the angle-iron of one support having a slot formed therein near one end and one side of the angle-iron of the other support being emma one support may be positioned in substantial vertical alinement with respect to the other support.

l. Superimposable structures comprising a plurality of posts or supports each having faces at an angle to each other, one of said supports provided near one end with an extension serving as a stop and the other of said supports provided near one end with an extension serving as a restor brace and means for assembling the two supports in vertical substantial alinernent with the rest or braceof the one support engaging the stop of the other support.

Superiinposable structures comprising a pair of angle-irons, one face ct one angleiron support having a slot formed therein and one face of the other angle-iron support provided with a lug adapted to register with said slot, a rest or brace secured inside the angle of one support and a stop secured inside the angle of the other support, the brace or rest and the stop being positioned on their respective supports with respect to the lug and the slot so as to be in engagement when the lug registers in the slot and to as sist in holding the parts in alined position when assembled,

6. ln joints for superimposable structures comprising two sections to be assembled, a slot formed in one section and a lug carried by the other, a brace carried by one section in proximity to the slot and a rest or support carried by the other section in proximity to the lug, whereby, when the lug registers with the slot, the brace and rest will engage each other to assist in alining the sections.

7. ln joints for superiinposable structures comprising two sections to be assembled, a slot formed in one section and a lug carried by the other, a brace carried by one section in proximity to the slot and a rest or support carried by the other section in proximity to the lug, said brace being provided with a downwardly projecting portion adapted to engage the outer end oi said rest or support, whereby, when the lug, reg- 1 isters with'the slot, the brace and rest will engage each other to assist in alining the sections.

lln testimony whereof, ll afi ix my signature hereto.

, JObEPH SlLVESTElEt. Witnesses H. E. WOLF, WM. G. linen.