US629275A - Invalid-bedstead. - Google Patents

Description

E. asumanan.

iIIVALID BEDSTEAD.

(ppmrion med Nov. 7, 189s.,

Patented my la, |399.

(No Modal.)

4 sheets-sheet www@ A TTOHNE YS No. 629,275. Patented .IuIy I8, |899.

' E. C. SCBIBNER.

INVALID BEIISTEAD.V

(Application led Nav. 7, 1898,)

4 Sheets-Sheet 2.

@No Model.)

mm. w M T w Arme/VHS.

No. 629,275. Patented my 1s, 1899.

E. C. SCRIBNER.

iNVALlD BEDSTEAD. :Application lcd No?, 7, 1898A) (No Model.) 4 Sheets-Sheet 3.

Wl' TNE SSE S f fw. c2. @W

YH: Noms mns cn, moro-dmc.. wsmuaron, n. c.

N0. 629,275. Patented Iuly I8, |899. E. C. SCRIBNER.

lNVALID BEDSTEAD.

(Applicat'on led Nov. 7, 1898.) v

' 4 sheets-sheet 4.

' A TTOHNEYS.

TH: wams were am cnam-Hu. wsmnaron. u. c.

UNITED Seit/.rines v PfrnNr OFFICE.

ELMER- c. soRrBNER, on NEvERsINK, NEW Yonir.

v INVALID-BEDSTEAD.

SPECIFICATION forming part of Letters Patent No. 629,275, dated. July 1s, ieee.l Application sied November r1, 1898. serai No. 695.703. di@ man.)

lid-bedsteads having sectional bottom por` tions capable of being adjusted to lift the body or head or the lower extremitiesof the patient and in which provision yis also made for raising the patientfrom and extending him above the bed-bottom.

Primarily my invention has for its purpose to provide abedstead of the character stated of a stable and economical construction in" which all of the parts are conveniently arranged and easily manipulated.

This invention also coniprehends a novel construction of sectional bottom members having the foot'portion formed of tvv'olongi` tudinal frames capable of being raised in unison or independently and a single crank-'operated mechanism, including shifting clutch devices adapted to be quickly shifted into 0I" out of an operative position, wherebyeither one of the said foot-frames or both of the said frames can be elevated, as conditions may make desirable.

Another feature of this invention lies in' making the longitudinally tiltable footframes each of two hinged sections, whereby! When elevated they may assumean angle shape to accommodate the bending of the knee of the patient, in connection with simple and easily-operated locking means for securing the two sections to form a rigid frame.

In its subordinate features this invention consists in certain details and novel combination of parts hereinafter first described in detailand then specifically pointedout inthe appended claims, reference being had'to the accompanying drawings, in which#h Figure l is a perspective View of my im`l proved bedstead, the head and foot sections being held flat and the supporting-hammock in place. Fig. 2 is a side elevation of wthe same,

partly in section, the hammock being omitted, one of the foot-sections being shown elevated as a rigid body', the other being shown in a knee-elevating position.

verse section taken practically on the line 3 3 of Fig. 2, one of the foot-sections being Fig. 3 is a trans,-l

shown elevatedA andI the other lowered, the clutch members for the lower section being shown out et gear. Fig. 4 is a detail plan ,view of the'drive-gear 'for operating' the footsections.l Fig.' 5 is'adetail 'crosssection of the same on the line 5 5 of Figgfi. Fig. 6 is an inverted plan v ievvr of fthe completebed Fig. Tis. an inverted detail perspectiveof a -portionot one -of the foot-sections, rparticularly showing the lock device for holding the two parts forming the said foot-section locked frompivotal movement. Fig. 8 is a' detail vview oi' the hammock-elevatin g device.A Fig.

.9 is a detail cross-section on the line 9 9 of Fig. l, and Fig. l() is a detail vievvof a porvtion ofthe hammock. f

In thedrawings, 1 l indicate the cornerposts, and 2 the'side bars,which are'detachably connected with the posts in the ordinary manner, said bars being, of the conventional langle shape, their foot portionsv inthe present form being connected by a l-Tl-shaped cross-bar 3, which forms a supporting member for the outer end of the sectional outwardly-extending T-shapedrest-bar et, the in ner end 'of which is-integrally formed with ,the central cross-bar 5, which bar, as also'the end supporting member, maybeintegrally ordetachably'joinediwithlthe side bars 2 The body orrrest portion of vthe -bed consists of a head-frame" 6 andY a foot-frame 4formed of two longitudinal sections, the special construction of which, togetherwith the operating-gearing for adjusting said-section, forming lthe most essential feature of this invention.V Y Y The yhead-frame 6 consists of a series of cross-bars (slats) shaped in cross-section, the ends thereof terminatingin dat portions which are weldedor otherwise made secure `to the'L-shaped connecting-bars 6b, adapted to lap and rest on 'the' side bars 2'when the frame 6 is down to its lowermost position.-

The inner ends of the bars 6i have pivotal vconnections tit (see'Filgs. 2'annd 6)With the side bars 2, which forms the fulcr'um-point for the frame 6 when elevated.

Any suitable'means may be employed for raising the head-piece, as the special lconstruction of the same forms no part'ofthis invention; but I-preferto employ a single transversely-journaled crank-operated shaft 8, having rightV and left threads S Sb at ,the

IOO

opposite ends, with which engage the internally-thread ed reciprocally-movable followerblocks 9, to each of which is pivotallyjoined Vone of the pair of cross-link bars 10, which are also pivotally joined to the under side of one of the cross-slats of the head-frame, as clearly shownin Fig. G, and to properly support the said head-'frame link-braces 11 are provided,pivotally connected to one en dof the side bars 2 and at the other end to the side members of the said frame.

By constructing the head-frame and providing elevating means therefor, as stated, it is obvious that by a proper manipulation of the double-screw shaft Vthe said frame can be raised or lowered as desired and held to any point of its adjustment.

The foot portion of the bed-bodyconsists of a pair of longitudinal frames extending from the cross-bar 5 to the footY end, and which -frames comprise a series of transverse shaped bars (slats) l2,joined at their ends to L-shaped connecting-bars 13 13, the outer ones, 13, of which are held to lap the side bars 2, while the inner ones, 13, are adapted to rest on the sectional T-shaped longitudinal brace-bar. The inner ends of the bars 13 have a pivotal connection 13X with the side bars 2, and the Y inner bars 13a have a similar connection with Y threads and threaded follower-blocks being employed.` In addition to such devices mechanism is combined therewith in the nature of shifting clutch devices for setting the threaded follower-blocks either in position to elevate one foot-frame while the other frame is at rest or to elevate both frames at the same time. For this purpose the screw-shaft 14 has its eXtreme outer ends formed with nonthreaded portions 14 and centrally with a similar non-threaded portion 14h, the purpose -of such. non-threaded portions being to provide seats or rest-bearings for the followerblocks 15 15 when shifted to an inoperative position. The blocks 15 are normally held to engage the threaded portion of the shaft 14, when it is to an operative position, by the coil-springsv 17 17, and to provide for conveniently and quickly shifting the said blocks 1.5 15 to an inoperative position a pair of shafts 19 20, traveling parallel with and adjacent the screw-shaft 14, (one at each side,) are provided, one of which extends the full length of the shaft 14, while the other extends but half the length thereof, its inner end being journaled on the inner web of the T- piece. The shafts 19 20 are held to rock in their bearings and have their outer ends provided adjacent the crank end of the rod 14 and are provid ed with angle members 19 20, adapted to be moved into engagement with detents 21 when they are rocked to move the screw or journal blocks to their inoperative position.

Each shaft 19 2O carries a pair of cam-disksV 22 22, the shaft at one side having its cams engaging with the follower-blocks ofV one end frame and the cams of the other shaft engaging the other set of follower-blocks, each set of cam-disks being located on its shaft in such manner as to engage with the follower-Y Wvhen the cam-disks are set in the position just mentioned, both foot-frames are moved vertically together whenV the Vshaft 14 is turned in a proper direction. Y Y

By rocking the shaft 2O to' the position shown in Fig. 4 the cam-disks will be caused to engage the blocks inthe frame at one side, disengage, and hold them from engaging the screw-shaft 14, thereby leaving the said shaft free to elevate the frame on the other side, it

being understood that by similarly. adjusting the other shaft 19 the frame on the other side will be held Vfrom rising. Y

To set the follower-blocks to an operative ICO porition, it is only necessary to turn the shafts 19 2O Yto disengage the cam-disks. The coilsprings will then move the follower-blocks to engage the threaded endsV of the shaft 14, which pair of follower-blocks for the footframes has pivotal connection with the linkbraces 25, the outer ends of which are pivotally joined to ears 26, held pendent from one of the cross bars or slats.

It will be noticed by reference to Fig. 3 that each link member 25 consists of longitudinallyeXtensible sections joined to form a rigid member by reason of one section having a pair of studs 26X, having a slotway 27 in the other section.

The object in making the link members extensible is to allow the additional longitudinal movement necessary to shove the followerblocks to their inoperative point after the frames have been lowered to their horizontal position, which foot-,frame consists of two abutting sections, the adjusting ends of the side bars thereof having a hinged joint connection 26C, as best shown in Figs. 2 and 7, byy

reference to which it will be seen the crossbar 26, forming the outer end of the inner section, has integral pendent ears 26h, which form one part of the rule hinged joint.

One or more of thel cross-bars at each side of the hinged point of the two frame-sections has pendent integral lock-brackets 27X, in which is held to slide a T-shaped longitudinally-movable lock-bar 2S, to the front end of which is connected, by means of the link- IIO joint 29, the handle and guided inthe keeper 3l on the outermost one of the cross-bars.V

When the bar 28 is shifted to the position shown in Fig. 6, the two sections 'of the footframe will be locked together and be held to move as one frame, as shown at Y in Fig. 2; but when such baris drawn out sufticiently to become disengaged from the pendent brackets on the inner section said frame-sections will be free to fold to the position shown at Z in Fig. 2 when said frame is raised by the screw-shaft. Thus the foot-frames can be raised .to support and elevate the limb in a straight or extended position or `bend the limb and lift the knee above the thigh-point, as

conditions may make necessary or desirable.

It will be understood that in practice the bed-springs on which the bedclothing is supported are secured to the head and foot frames, as indicated in Fig. 2.

32 33 indicate a pair of 'longitudinal bars journaled'in end bearings 34 34:, secured to or formed integral with corner-posts, one of such bars having non-circularjournals,where by to prevent the bar 32 from turning, while the other bar 33 hasv round journals, it also having at one end a Winding gear-wheel 35, which meshes with a winding-pinion 36 on the crank-shaft 37, provided with a pawl-andratchet device. (See Fig. 3.)

38 indicates the hammock or sling of canvas or other suitable material, the endsof which have slits 3S, engaged with the headed pins or buttons 39 on the bars `32 33, it being manifest that as the sling on one side is being wound it will fold closely over the heads of the buttons, holding the corresponding end of the sling from becoming disengaged with the buttons on the other side of the sling taut on its buttons.

By providing the hammock or sling, as described, the patient can be easily and quickly elevated when it is desired to adjust the head or foot members without exerting any painful pressure on him.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In an invalid-bedstead a bottom having a plurality of lon gitudinally-arran ged tiltable frames; a single crank-operated mechanism for raising andlowering said frames, said mechanism including shifting clutch devices, whereby it can be set to tilt all of the frames in unison or each frame independent of the other, for the purposes speciiied.

2. In an invalid-bedstead, a bottom comprising a tiltable frame formed of two sections hinged together at their meeting ends, a sliding lock-bar arranged in guides onthe under side of said sections, and means connected with the latter, at their hinge, as shown and described, whereby the sections may be elevated at their meeting ends or cen, ter only, and thusheld at an angle to each pmi-rod so, having a suitable ported other, or may be locked together in alinement and elevated as one rigid frame, as specified.

3. The combination of the supportingframe, said frame including a central supporting-bar extended to the foot end of the frame; of a bottom formed of two longitudinal frames arranged parallel and adjacent, and having a pivotal support at their inner end on the side bars, and the central bar, and also having pivotal link-braces connected with such side and central bars; a crank-operated elevating screw-shank having right and left threads; follower-blocks reciprocally movable on such shaft, and link-arms connected to the follower-blocks and the tiltable frame, as set forth.

4. In combination with the main frame and the foot-frame supported on the said main frame and having a pivotal bearing thereon at one end; of the single crank-operated shaft having a duplex set of right and left threads; a pair of follower-blocks for each set of right and left shaft-threads; means for automatically moving said blocks to their thread-engaging positions; extensible link-arms'connecting the lower-blocks out of engagement with the screw-shaft sections, for the pnrposesspecified.

5. In a bedstead as described; the combination With the main supporting-frame; the foot-end frames tiltably mounted on the main frame; thesingle crank-operated screw-shafts; the follower-blocks; means for moving such blocks into their thread-engaging position, and lifting-link connections joining theblocks andthe tilting frames; of mechanism for shifting and holding the follower-blocks out of engagement with the screw portions of the shifting shaft, said mechanism comprising a pair of rocking shafts, each having cam disks adapted to be moved into engagement with thefolloWer-blocks and shove them endwise of the shaft, said rock-shafts having detents for holding them to an operative position, all being arranged substantially as shown and for the purposes described.

6. A new and improved bedstead; comprisinga main frame; a hammock or sling supon the upper end thereof; means for elevating and lowering the same; a bottom consisting of a tiltable head portion and a foot portion comprising a pair of longitudinally-arranged tiltable frames, each frame being formed of two sections, having a rulejoint connection, and having a slidable locking-bar forinterlocking the two sections, and means substantially as described, whereby the crank-operating mechanism may raise both foot-frames in unison or each frame independcntly, substantially as specified.

ELMER C. SCRIBNER.

Witnesses:

JAMES H. DIvINE, J. CLAYTON SCRIBNER.

blocks and the tiltable frames, Y. .and means for shifting and holding the fol- IOO IIO

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