US1764477A - Stretcher - Google Patents

Description

June 17, 1930. E. WEBER-STIERLIN STRETCHER Filed Jan. so; 192a 2 sheets-Spat 1 June'17, 1930. E. WEBER-STIERLIN 1,754,477

STRETCHER Filed Jan. 5o, 1928 2 sheets-sheet 2 m FVW llj;",'Lllfii'sinvention relfatestoistretchers and more particularly to stretchersof' the kkind having2 tvvo longitudinal poles cfa-ch* consistf ing of twofparts ecupledtogether fof use but separatedffor transport, saidpoles i ing ajfabri'cor thelike supportand i y 2,-: being spacedhy stays capable ofloemg locked orclramped in'epositif'oninsuch a manner that the'stretclier cani be divided vinto -tWo parts 10.for't1fansport or stor'a'g'e,` the saidpar'ts'loeing nl coupled togetlierf'vvhen the stretcher is Te,-

: qui-rai forts@ f The: main Obj-ect Off the invention -is tof provide ra stretcher ofthe type .y des'cribedzvvhichl be; quickly arranged for f r Y Y A15K` usef'withff aiminimum et mapulation.` 1i

.j `further` ohj ect is the 'provision 'ot auto'- maticl means tosecu-re and lockthe stays and l the poles .in theirrespective posi Moreover the longitudinal pole parts are interconnected by folding or collapsible y staysv attached tothe supporting legs, each stay-being provided with means, say alock- Y ":'30Hing-pin, `for automatically securing theleg offone longitudinal pole part, in relation tok rvr`-`the latter in the lposition of use` When the lstays. are in the extended position. The in- @vention .Y also includes automatic -means yfor 35 locking or clamping they stays in their *exv'tendedposition.I f

L 4ment and construction of the parts as here- AQ inafter described'and shovvn in the draWings. n In thel accompanying dravvingone constructional example of the invention is repre'-V l y A i sented :v K Y Y Fig. 1 is a crossesection'through two longiaftudinal pole parts showing the spacing means.

. i Fig. 2 shows the collapsed spacing means. y f Figs. 3 andll show a stretcher inside ele- ;y vVation and plan respectively. These figures y f are on a smaller scale and do not shovvk the `5.0' stretcher fabric.

l -Referrling-to the drawings-thee p' ,i to which vthe stretcher' 'falonicr is attac Y 'each consist of two-parts" eas tions'ftolforlm s "Migd-butverv liahtstretchef-r 1 Y- v f "2,0 li attai'nthese 7and other objects-by arrangv inga supporting'legon each of thel four y longitudinal pole parts so las to be capables f of'folding, the meansv for spacing the longif' ftudinalpoles losingV attached to the supports, 25 ing legs of the longitudinal poleparts.

. describedybeing provide With these and. other objects' invievv the f v invention consists inthe particular arrange#l "F r'is'pan'elevationalfvievv'offtle--cone l necting means-betweenthe ends of tvv'oifstay's' Figure@ iSv-'an-.elevational view'z'offanndtoff y thepoleandfthe "leg uponffwhifch-it issup-fy a portedi; Figure isaldetailvievv oia-pole-.end'5a'. i'

isafsubaan-aauy Sectional-'viewer aperti@ Y i l the end of: thestay rodgfFigure 9|*isfastantiallyf'sectional .fi'evv etai poleandfadfila-f-Go have a :pivot pin` 8f near -thel top at, 110..; 'rhs Stay; gsextenaabtyonathe 'point Y 5 The ot attachment anidhasl a! sloping 1 end; sloped Aiendi 4L engages a1 spring-mount y s or"'stirrup'catch -11,vvlien l thelstays clamped; @mocked sposata l12in 11 ispivoted on stayf `91 1 (andi's' s forcel Love, a c hinnp' Qnsaety` proj action-13'; on:` the stay 9 j against thenctionspringil pos onedpk Y inside the stay` (which is tubular) when thetubularstay @nei end `O 915;! the" othen end; engages saidppr'oj ect the free end of ring 11 as soon as the stays 9, y

9 are brought in the position shown in Fig. 1.

Ther-ing 11 is iirst displaced against the ac- :tio'n of spring 12 and snaps over the end 4 Y catch 13 and retains the stays`9, 9 in their locked position; to free the ring 11 again before folding the stretcher some pressure has to be applied to the ring 11 to' pass it over the projection 13. Y y

In addition there is provided on the stay 9 a cap 14. rFhe cap 14, which is formed of a piece ofsheet iron, is rigidly fastened to the stay 9 and is provided with two spaced downwardly projecting lugs between which' the end 4, ofthe stay 9 is inserted. Each of the stays 9, 9- is provided with a bolt 16. This bolt exten-ds into a boring 17 (Fig. 7) on the folding leg2 and also into aboring 18 provided in a downwardly extending lug 19 on the sleeve 5. Each stay9, 9 has in addition a plate 20 which engages the lug 19 on the sleeveY 5 when the spacing stays 9, 9 are eX- tended and by this means the poles 1, 1 are spaced apart and the fabric ,T isl drawn taut.

Y The stays consequently maintain thelegs 2 and the poles 1,1 inthe correct position. The load carried by the stretcher is taken up 'oy the stays 9, 9 through the plates 20. All the parts of the stretcher are now in their vlocked position.

Tubular components 30, 31 (Fig. 4) are rigidly secured'to each half 1, 1 of a longitudinalpole for coupling up same. Inserted in the tubular component is a fitting l32 which is,1-for example, welded in, whilst inv the'tube 31,l asecond fitting 33 is inserted and weldedv in.` The end of the tubular member 30is'provided with alitting 32 having spaced lugs between which a pin 34 is supported, the latter being disposed to enter slots 37 in the lugs of the fitting 33 as illustrativ-ely exempliiied -inFigure 10. Y The fittings 32, 33 have other but the coupling is not liable to be freed unintentionally when the stretcher is in use. What. I wish to secure by S. Letters Fatent is:' v Y 1. Foldable braces and leg structure for f the separable longitudinal pole parts of a stretcher, comprising a sleeve fixed adjacent pendicular to the sleeve and pole part, and a locking member pivotally mounted between the arms of the leg and provided with a projection which projects into the registered openings in the bracket and leg cap to secure the leg Vin position perpendicular to the pole part.

`the sleeve and longitudinally of the bracket along the side thereof. Vadjacent the.v pivotal connection with the leg.

3. Foldable `braceskand leg structure for the separable longitudinal pole parts `of a stretcher, as claimed in claim 1, in which the locking member comprises a socket to receive the end of a stay rod forming part of the stretcher kframe and'asplayed end comprising three parts, one thereof carrying the pivotal connection with the bracket, Vthe intermediate projection 'curved about the pivotal connection of the other part as a center and forming the said projection vto be inserted in the openings of the bracket and leg cap, and the third Vpartbeing a shoeprojecting perpendicular to the aXisof the socket and stay lrod and forming a stop abutting the bracket when the leg is swung to position of use and the c urved partis in locked vposition in said openings. V

In witness whereof I afiiX mysignature.

. ERNST WEBER-STIERLIN.

c theend of eachfpole part andprovided with 'a bracket projecting perpendicularly thereto and having an opening adjacent its outer end,

a. VU-shaped leg pivotally mounted at the end of one ofits arms at a corner within said bracket, said arms having a cap for the ends ofthe vlegs providedwith an opening disposed to register with the opening in the bracket when the leg isswung to position per- 2. Foldable braces andvleg structure for"

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