(N0 Mode'l.)
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`No. 367,953. ‘
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`W. H. BOWMAN.
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`VENTILATION OF PILLOWS, 6m.
`Patented Aug. 9.1887.
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`UNITED STATES PATENT OFFICE.
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`WINTHRO-PV‘H. BOWMAN, or’ BOSTON, MASSACHUSETTS.
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`VENTILATION OF ‘PILLOWS, 84C.
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`SPECIFICATION forming part of Letters Patent No. 367,953, dated August 9, 1887.
`Application ?led Jnnuary??, 15,387. Serial No. 225,544. (No model.)
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`is thus maintained. Y
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`To all whom it may concern.
`for animal substances. Moreover, a person ex»
`Be' it known that I, WIN'I‘HROP H. Bow
`hales through the breath impurities, as car
`MAN, a citizen of the Unitedv States, residing
`bouic‘acid gas and animal matter, besides the
`perspiration emanating from the head, all
`at Boston, in ‘the'connty of Suffolk and State
`tending to in?ltrate the interior of the pillow
`of Massachusetts, have invented certain new
`and useful Improvements in Ventilation of
`with noxious poisons, which cannot be elimi
`Pillows, Mattresses, 8m; andI do hereby de
`nated without free ventilation through the
`?lling material composing Such articles. No
`clare the following to be a full, clear, and exact
`description of the invention, such as will ena
`doubt this is one great source of annoyance
`ble others skilled in the art to which it apper
`and the cause of trouble which is never sought
`tains to make and use the same, reference be~
`for nor suspected within a pillow or mattress,
`‘ inghad to the accompanying drawings, and to
`and it is the object of my invention to obviate
`letters or ?gures of reference marked thereon,
`and remedy any such ill effects arising there
`which form a part of this speci?cation.
`from.
`In the accompanying drawings, A represents
`This invention relates to the ventilation of
`pillows, feather -beds, and mattresses; and'it
`a pillow as an entirety embodying my inven
`consists,primarily,in providing the class of
`tion. This, as usual, is composed of an outer
`articles before premised with an air conduit
`- covering, B, made from some stout woven fab
`or ducts which shall readily permit the ?ow
`ric, within, which is incloseda ?lling-such as
`of air centrally or thereabout within their in
`hair, feathers, or other analogous substances
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`‘ terior; furthermore, in preventing the escape
`which as a mass combines lightness with
`ofiair so admitted through the ductby'means
`spri'nginess. Preferably located at each ex~
`tremity of the pillow or other article are in
`of a check-valve,and thus compelling any ex
`cess of air to escape outwardly‘ through the
`serted and secured tw'o ?exible ducts or air‘
`interstices of the material of the pillow or mat~
`pipes, a a, through which the external air is
`easily and readily conveyed, whence it is dis
`tress. By this method a thorough ventilation
`of the ?lling—such as feathers or hair-is pro
`tributed throughout the mass of ?lling, per
`duced, while the latter is‘ well stirred up by
`meating the same and thoroughly aerating it.
`the introduction of such air, and the tendency
`To more effectually secure the object of my
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`which such materials have to pack and mat
`invention, I'have placed in the mouths ofsuch
`together is obviated. Their inherent elasticity
`air-ducts check-valves G Qwhich are arranged '
`to open and permit the entrance of air within,
`but prevent its escape therethrough when
`pressure is produced externally of the article
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`by the weight of the head or body of the occu
`pant. ‘ The inner ends of such pipes are open.
`Thus,inthe event of the pillow or mattress be
`ing disturbed,air is free to pass in,while upon
`further movement and pressure thereupon the
`excess of air is forcibly expelled outwardly
`though the interstices of the covering B.
`I do not desire to be limited to the'precise
`construction of the check~'valve, nor to theepo
`si tion,rinmber, or length of the air-pipes, since
`the latter may be dispensed with, if desired.
`However, I deem it preferableto introduce
`the air centrally, since by this method the ?ll
`ing material is more thoroughly aerated and
`‘ventilated, 'sincethe air,when_con?ned by the
`check-valves, tends to escape outwardly.
`In the present instance I have shown the
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`The drawings accompanying this speci?ca
`. tion represent, in Figure 1, a sectional eleva
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`tion. Fig. 2 is a central section of a check to be ‘
`preferably employed.
`Theimportance ofventilation for pillows and
`other analogous articles cannot be fully ap
`preciated except from a careful study of facts,
`and generally such investigations are not made
`'known to the public.
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`But,of Whatever mate
`rial the pillow or mattress may be composed,
`the tendency is to absorb into the midst of the
`feathers or hair with which they are ?lled im
`purities of the breath and the emanations from
`the head or body of the occupant. This is
`simply a resultdne to non-admission, compar~
`atively speaking, of air-within said pillow‘or
`mattress and the tendency of such ?lling to
`adhere closely together.
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`Feat-hers or hair have an inherent affinity
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`367,953
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`air-pipes a a made in one continuous length,
`with a rectangular opening, I), cut in it about
`midway. Thus the remaining strip, 0, unites
`and maintains the discharge-ori?ces of the
`pipes in their proper position. In the event
`of several pipes being used their ends may be
`secured to each other or to the covering B of
`the article to prevent their shifting.
`The air-pipes a (t are preferably to be made
`of rubber or some elastic or ?exible material
`which will be light and yet not diseoniniode
`the person using the article.
`The check-valve (shown as an entirety at O)
`in the present instance is composed of a short
`section of metallic tubing, (2, centrally bored
`and in part serew-tln'caded to receive a hollow
`plug, 0, which serves to supply the air to the
`valvef, which it retains in place. This valve
`proper is an ordinary “ clapper-valve,” so
`called, and adapted, ashereinbefore premised,
`to operate to admit air freely within the inte
`rior of the pillow or mattress, but to prevent
`its return outwardly through the pipe a, the
`bore of which it controls.
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`I claim——
`1. A pillow or mattress provided with ap
`ertu res supplied with valves for allowing in
`gress of air,but preventing its escape through
`said openings, said pillow or mattress having
`aeovering of material which is not air-tight,
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`but by its bellows action will open and close
`the valve, substantially as set forth.
`2. A. pillow or mattress, A, provided with
`the covering R, non airtight, to which are so
`cured cheek-valves C O, operated by the bel
`lows action of the covering B, in combination
`with air-pipes a, a, extending therethrough
`and provided with apertures centrally of the
`pillow or other article to be ventilated, sub
`stantially as and for purposes hcrcin specified.
`In testimony whereof I allix my signature in
`presence of two witnesses.
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`\V. II. BO\VMAN.
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`\Vit n esscs:
`F. OUR'rIs,
`H. E. LODGE.
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