US1247274A - Door check and closer. - Google Patents

Description

J. HOFERLE.

DOOR CHECK AND CLOSER.

APPLICATION men MAR. 14. 1911.

1 ,47,27% Patented Nov. 20. 191?.

JZQ/ 2 sugarssum 1.

J. HOFER LE. DOOR CHECK A'ND CLOSER.

APPLICATION FILED MAR. 14. 1947. Y

Patented Nov. 20, 1917.

2 SHEETSSHF.ET 2.

rats s ra ns nearer ion.

JOHN I-IOFERLE, OF CHICAGO, ILLINOIS, ASSIGNOR 0F ONE-FOURTH T0 LOUIS .A'UEB, ONE-FOURTH T0 ALBERT AUER, AND ONE-FOURTH [PO-ANDREW AUER, AL]; OI?

CHICAGO, ILLINOIS.

DOOR CHECK AND CLOSER.

Application filed March 14, 1917. Serial No. 154,781.

To all 'whom it may concern:

I3e it known that I, Joint Hermann, a citizen of the United States, and a resident of the city of Chicago, county of Cook, and

State of Illinois, have invented certain new and useful Improvements in Door Checks and Closers, of which the following is a specification. y p h My lllVQIltlOniIQlfltQS to automatlc door ClOSIIIg aHCl ClIECkIHg devices that are adapted to be carried partly by the door and partly by the casingsurrounding the same in a manner similar to that disclosed in Let ters Patent of the United States issued to me under date of March 30, 1915, No. 1,133,725, for an improved door check and closer. In a device of this Character the door is closed by means of a Suitable contraction spring inclosed within the cylinder andhollow piston rod and is checked or re tar'ded in itsmovement through the medium vision of a novel piston head that is 'constructed in a manner so that the air may pass easily through the piston head and the piston from one side to the other as the,

door is opened, but will be compressed in front of the piston headas the door is closed and will thereby check or retard the closing of the same. v y

A further object of my present invention is the provision in a door closing and checking device ofsuitable novel means for retaining the flexible "ring or washer of the piston head in close contact with the interior ofpthe cylinder and preventleakage of air around the same. 7

Other objectsof my'invention comprise the provision of a door closing and check ing device that is comparatively simple in construction, economical to and dependable in its operationfl I prefer to accomplish the divers objects of my invention by substantially the means and in substantially the manner hereinafter fully'set forth and described, reference bemanufacture,

ing had to the accompanying formlng where1n,-

drawings a part of this specification,

Figure 1 is a top plan of my closing and checking device attached to a door and casing, the door. being partly opened forthe purpose of illustrating the relative positions of the elements of my device.

fig. 2 is a longitudinal front elevation thereof.

Fig. 3 is a central longitudinal section taken through the cylinder, piston rod, and piston head.

Fig. dis a fragmental section showing the parts of the piston head in the relation assumed during a compression stroke.

Fig. 5 is a transverse section on line 5-5 of Fig. 4, particularly showing an arrangement of the spring for expanding the cupwasher. p h

"Fig. 6 is a perspective view showing a modified structure for expanding the cupwasher.

In the drawings similar reference char acters have been employed to designate the same parts throughout the divers figures thereof.

Referring more particularly to Figs. 1, 2

and '3 of the drawings, it will be observed the devicepreferably comprises an elongated cylinder or tubular member 10, wherein a.

suitable hollow piston rod 11 is adapted to reciprocate while a coiled contraction spring 12 is inclosedin" said piston rod, one end of said spring being adapted to extend out through the inner end of hollow piston rod 11 and is connectedto the closure cap 13 Specification of Letters Patent. Patgnt fl N 2% 1191*? i screwed or otherwise secured tothe adjacent end of the cylinder 10. The opposite end of said spring is connected by an elongated bolt 14 to the opposite or outer end of the piston rod 11, said bolt being provided with a fiat sided or squared shank 15 that fits into a correspondingly shaped opening 16 in a washer 17 disposed in the end of the piston rod. In order that the head of the bolt may be conveniently seated in the washer, the

latter is preferably constructed in a concave manner, 'asshown, so that when the cap 18 of said piston rod 1s screwed onto the end bol this tappedor screwed into around or cylindrical nut19 that is frictionally held thereof,nit will press against said washer and thereby prevent the rotation of the bolt 14. p The elongated threaded portion of the in the adjacentend'" ofthe coiled-spring 12, and it Will be observed that by releasing'the CYlilIClQRlOfflDd rotating ThllQFISHDIB inithe: on'ei rod, the nut 19 Will be screwed up or down on the bolt 14, thereby extending -oweon-" tracting the spring 12, and cause the same tolexer't greaterkorulesssitension ini closing thedoor.

The cap 13 is provided Witha suitableem bossme11t.20,. that. provides means whereby thei:TadjiiQentYend1 of the cylinder may; be, pivot'alllv "and reinovabl'y' mounte d nponlhe.-. hinge of.;a,suitable toggle, one. of the m'e'im heirs iv11ereofe0n1prisesa horizontally" dis-; posed ,L'substantially; L-jshapediarni 1 21. "that; hasthel u per end of. its lateral portion 22;. screw-threaded 'to-..fo"r1n'. a pintle that. re-. ceives,the.1ug. o1f embossnien't. .20 of caprlizf 20,.1115 opposite end of arm 21is hingedlycom.

' nected to amountingplateQB securedrinany su i't ablefmanner.to1the upperrportion of the. door and which" is so positioned that said! arm Avill, 1111121611, .normal conditions, be dis .posedtin. a plane at. substantially; .az..right-. angle to .the'plaiie of the door; When closed; The companion membemftthe toggle con-- sists. oflan eXtensibleZor adj iistable. link, one. element [24: .1of1 fi'vhichis pivotally securedito 80Ma bracket 25inount'e'd on'th e door frameand;

' comprises. a. turn-buckle .thatis. adapted .to

cooperateiwith'the elongated threadedqshank... of the other element 26 of said link; [The l. outer :end of. the. link .is.preferably bent .or

.defie'oted laterally andiislada'pted to..be..ad.-.

' jii'stabl if and.ipivotallynnountedwinna bifu'rr.

cated lateral boss 27, formed on one sideloffl. the shorten..verticalt portion. 22,- of.l.the L shapedlarm 21.1. This .Qdisposition 10f fiche.

4th toggle and. its connected .eleinents .rvill pen.

initth'eLdoor tobeopened. andfclosed intthe customary manner or. to be swung {back until .1 theip ill of. ith'elspriiig is .on... an; approximate dad-izenterg when the: energy of the same,

45.i.WilLiiot..be..feltland theadoor will remain openedipositiomg I have disclosed "hereina .novel. construe-,

tion. of: {the .piston, carried .upon .the :inner end 'ofi'the hollow piston .rod 11. which is.. 50,; illiistrated-lin detail in. Figs. 3,14 and. .5; of.

thelvdiia vings wherein. :it .Will 'be'z observed, amhnnulgir shoulder 1 28. is; provided Qupoirtheiinner end of the :pis'tonrod.v Aflared .1 sleeve 2910i? substantially; the sameldi'a'meter 55, as the zpistonsrod' is screwed into .the -th'rea-d.-.

ecL bore" of .said. shoulder- 0r..:piston rod in. theiifornieix iristancezuntil, it abuts! the endf. ofllthepiston: rod..as.;sl10\vn:in..Figs. .3 "and 3 4 endfthisil flared lsleeve I extends; .through. a

6O central aperture in. the .Valve or piston .head-....

tQLbhefrea-LEter described. Thefiared sleeve. 1

29:11:18 lateral,.portsfidprovidecl thereinand.

a backingjvasherlor gasket 31,.is .interposedJ betilveenthe shoulder 28, andvthe base 0f :the. I:

([6 e a-Ive:or piston head iVhen the .pis tonh'ead Q.

or" mites entering theylihder-iOi the base thereof-Will be forced againstthe Washer 31 which; iniiiitsizturn :wrll beeforoedaagainstithe CllIEBCiLiDREOlFtlIQZ .otherirrelativeit :the;pistonriijanrnilar shoulder; 2S;.theneby prevenfingpthe escape of air from onessideiofithenvalvenor pist'on heaebto the other; but when the pistorr'is being Withdrawn in the cylinder 10, th'e' -ipistoi i head or valve Will HIOKQEEOSHVQRQL to. the flared endportion of the sleeve 29, thereby uncovering'the ports 30 and permitting a free passage.ofthe air thronghihe-e. piston -head or..va1ve, .\vhich" QLflatlj failitates ithew thdran 10f the; piston. andihe oPI' iliQQf th' ddorg'f I Q The 'pistfoni'he id waiverprefer bi i om 80, prises a base (plate32311central. hd t0; provideIaI-i .aii lularfizfngel33thet 5} rounds: the flar'e'dbleeve 292 "A"cup-'W21S1 I. Evil-0ft leather or... other. suitable materiahiijs inioimt' edjupen the Lbasemlate aboiitiftlie e; andis"seca dstherete yfe ring 35 6M Whichthe edge f the. fiahgefiiii'sf i1p-.set..j. n,. ordretOikQpjh; sides. of; fliecu pgyvajslier; in I, yielding, and fcoiiperative relatio ithFI-the Walls"of .the Cylinder 10,1 1 have, providedthe'f .9 0 l sprifig riiig 6;.1W iicliiis.heldlirisid fi e cupsivasher. by tongues 37;? extending frond the fia'nge' of ;ba;seplate32 iiiisidelthe cup-4 washeri and outsid'eilandflover tthe" springring; as shown- (Asa modifidjfi ans FfQi'. :pressi11g,95. the cu-p.- washer. -.i1ito contact .i'Witli' the" fcy'liui deli 10, 'If.have a videjda fiat-[ring .38 jslleoin in detailin" logy Tofftheudr'awings; which? hasha series, ofjis'pringj ongnes .39.; e endr' ing. laterally: from ,tlieg outerledge thereof i109. which'iare adapted -.to.;pressf againstgilie in, terior fiurf cbfigpf thegcup w,asher;' The. as: sembly; of, the ,hadidf. 170111 14 withl'concave wash,er,, 1'Z;-wh-ile being su,ffi ientlyj close .to', prevent a rotation, is not, -h'oivever,},s'oitight1111iv as topreyentthe easy passagejofiairilpast thesamegrj 1'.}..'.A ;1o@r..chek;.andgcloser,.mmpnisinga cylinder, a .hollhw- 'piston od@ reciprocable;.JLQ thereimland.Iprovidedmvithlateral,;ports,fa a spring withiii said .cylinderj andfpiston-rodjfi. onel'e'ncl. whereofi Yis' vconnected .Zto. the {adj acent end ofsaid'cylindefla piston-headinov-j ably inountedupon theinner end oisaidfpis 15. tonirodc andfadaptedfto:contiqol. the Ipassage l; of 'airjthfoughlsaid 'ports,.-.and a boltIcarriedf}. by. said, nistonrod 1to..-. W'hichj the adjacent .I; end iofifgaid ispringrisi ,adjnstably; ;.connected;;,i

2Q AfidopricheCkLaHdJCIQ Qr .comprisinga Q11 9 cylirldei', a holloiv piston rodjreciproeableii therein a spring within saidjfcyl inde'rf and pistona'rod ...one end; Iwh'e'reof. isfl connectedj toe the: 'adjfacent..- end.10f .fsaid cylinder, a....b'olt;; carried :by said piston-rock, ,an element. 136151125 i. justable' iipon said .boltito. which. tl1e'.adja f cent end ofsaid spring is. connected wherer by th'e'rotation :ofjsaid Cylinder. isladaptedztoiw regulate;theetensionpf saidkispring i T 1 a new cheekirig and c s iiggilefic.

comprising a cylinder and a hollow pistonrod, and means for retracting said rod within said cylinder, a piston-head movably mounted upon said rod, and valve mecha nism controlled by the movement of said piston-head and cooperating With said hollovv piston-rod whereby the fluid in said cylinder is adapted to pass from one side to the other of said piston-head through said piston-rod.

4. In a door checking and closing device comprising a cylinder and pist0n-rod, and means for retractingsaid rod Within said cylinder, a piston-head carried by the inner Copies of this patent may be obtained for five cents each, by addressing the end of said rod, a cup-Washer mounted upon said piston-head, a spring mounted within said cup-Washer and adapted to press the Walls thereof into contact with said cylinder and a device carried by a portion of said Washer and adapted to retain said spring in position against said washer.

Signed at Chicago, county of Cook, and State of Illinois, this 10th day of March,

JOHN HOFERLE.

Witnesses.

E. K. LUNDY, J r., H. SLACK.

Commissioner of Patents,

Washington, D. 0.

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