US1485758A - Spring mattress - Google Patents

Description

March 4, 19.24.'

E. AMlEs SPRING MATTRES S Filed A119.- 16. 1921 @mi i@ 3..

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EDWIN ARMES, 0F LONDON, ENGLAND.

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Application led August 16, 1921. Serial No. 492,756.

To allv whom t may concern: f

Be it known Vthat l EDWIN Ali/fins, a subject of the King of Great Britain and Ireland, residing at 46 Priory Road, Bedford Park, London, England, have invented an improvement in Spring Mattresses (for whichl have filed an application in England, August 7th, 1920, application No. 28251), of which the following is a specification.

This invention relates to a new Vor improved spring mattress, applicable also to seats for vehicles and for furniture and like purposes and comprises certain improvements in that type of mattress in which a plurality of arched steel strips or wires with or without interposed springs, or strips bent to a spring like formation are each held singly and parallelly in the members of a rectangular frame and the primary object of the present invention is to produce a highly efficient mattress or resilient surface at a minimum expense.

A convenient construction comprises essentially a rectangular frame, a plurality of vertically arranged holes or pockets in the side and end members of said frame, a plurality of spring steel wires each of an arched shape and approximating in length to the Width of the frame and having the ends of each wire inserted within the holes or poclrets in the side members of the frame, a plurality of spring steel wires each of an arch shape and approximating in length to the distance between the end members of the frame and having the ends of each wire inserted within the holes or pockets in the end members after each wire is first threaded over and under the transverse wires.

This invention also contemplates the use of spring like edges to the frame, formed from arched steel wires and also a canvas or like material covering for the spring wires in combination with an overlay or mattress of hair or other suitable material.

A further feature of the invention, in the case of an eXtra wide mattress for double beds for instance, is the provision of additional transverse wires about the centre to avoid any sagging at such central part.

This invention will now be more particularly described making reference to the accompanying drawing in which:

Fig. l is a broken view in plan of a spring mattress constructed according to the present invention; v

Fig. 2 is a view in transverse section thereof; Y

Fig. 3 is a broken view in plan of a double width spring mattress.

Fig. 4 is a view in transverse section thereof; l

Y Fig. 5 is a detail view in section-on an enlarged scale-showing the one end of one of the wires fitted within one of the holes or pockets in the members of the frame.

Fig. 6 is a similar view of a modification. Fig. 7 is a broken view in plan thereof; Fig. 8 is a view in transverse section-on an enlarged scaleshowing more particularly the formation of the spring edge, and

Fig. 9 is a view inv endv elevation of a complete spring mattress with its'overlay. Throughout the views similar parts are marked with like letters of reference.

Referring more particularly to Figs. 1 and 2, a rectangular frame composed of end members a a and side memibers al al is provided on its upper surface with a plurality of substantially equally spaced holes or pockets t2-which may well be about four inches apart-adapted to receive the ends b of arch shaped wires.

These wires are preferably of coppered, tinned or plated spring steel (of any appropriate gauge No, 9 or 11 S. W. Gr. is eminently suitable and satisfactory in practice) and are simply cut oif to an appropriate length from a coil of wire and their ends inserted in the holes or pockets without bending, their curvature being due solely to the form imparted to the wire on reeling or making it into coils for transport.

The transverse wires b1 are preferably first placed in position then the longitudinal wires b2 are passed alternately under and over the transverse wires before their ends are positioned in the holes or pockets in the end members a. The longitudinal wires b2 may be indented or bent at the crossing points with the transverse wires b1 in order to stiffen and brace the latter or the crossing points of the wires may be bound together. The ends b of the wires may be simply inserted within pockets formed in the members of the frames, but preferably the following method (see Fig. 5) is adopted. A hole a2 somewhat larger than the wire employed, is first drilled. to a suitable depth, which is then counter bored to receive a steel disc or washer c provided with a central hole approximating to the gauge of wire employed, the end b of the Wire is then thrust through this disc or washer, its end resting on the bottom oi the hole. The frame may be made from wood, which is the case in the construction above described, but it may equally well be made from metal (see Figs. 6 and 7) preferably of a channel section in which case snugs or inwardly formed depressions d are formed in the vertical web (Z1. These snugs d are provided with or form holes or pocl'rets: to receive the ends l) of the wires which first pass freely through slots (Z2 formed in the upper flange. cl3 as shown. if angle iron or metal be employed, a stop is provided for the extremity of the wire.

ln the casey of a mattress for a double bed the. construction illustrated in Figs. 3, andY 4 is preferably employeda in which oase the frame, is furnished with two additional longitudinal members a3V as arranged as shown. Each of these members are provided with holes or pockets c2, the one series in the members a1 and a? being alternately arranged with respect to` the series in the other member al and et so that the transverse wires b1 extend from one of the side members.- al to the additional member a3 furthest; from it. By this arrangement the central portion of the mattress between the members as a3 contains double the nu-nr ber of transverse wires as shownandso efectually prevents any sagging in the centre of the mattress.

In order to provide a. spring edge to the mattress, additional arch shaped wires b3 may be arranged alternately as shown (see Fig. 8) on each end and side member of the frame. rlihe ends of these Wires are placed within holes or pockets in the members of the frame and the highest points of these wires are slightly higher than the height of the transverse and longitudinal wires b1 b2.

Flexible rods, such as cane e, (see Fig. 9) are secured to these arch. shaped wires 3 by binding with twine or wire and over the whole is placed a textile covering f of canvas or other suitable material which may be tacked or nailed to the members of the frame, if of wood, or in the case of metal, to wood filets secured within the channel or langle section, or the covering f may be removably attached by eyelets and buttons g secured to the underside of the frame. Over this covering is placed or attached thereto an overlay f1 filled with horse hair or other suitable filling. The. covering or the overlay may be secured by twine to the wires and the overlay but-toned as usual.

ln some cases provision may be made. for nialrii'ig the longitudinal members of the frame in two parts hinged together for convenience in transport.

l declare that what l claim is A spring mattress comprising a recta-ngular metallic frame formed of channel section members, inwardly projecting snugs formedon the vertical Webs of said members, vertical pockets, formed in said snugs, slots formed in the u-pperfflanges of said members in line with the poc iets in said snugs, and a plurality of longitudinal and transverse resilient members formed by cutting off appropriate lengths' of steel wire from a coil and having their ends inserted through the slots and within the pockets in the snugs, as set forth.

EDWIN AMIES.,

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