US906514A - Door-check. - Google Patents

Description

J. P. DENGLER.

DOOR CHECK.

APPLLGA'lmN FILED JUNE 13.1908.

Patented Dec. 15, 19084 fax luvuanfoz Cfr JOHN T. DNNGLER, OF lll'llntDELPIUA, IViNNSYLVANA.

noon-CHECK.

Specification of Letters Patent. y

Patented Dec. 15, 1908.

l Application led June 13, 1908. Serial No. 438.307.

To all tlf/zomfit may concern:

Be it known that l, Jon-N l). DENGLEn, a citizen ot' the 4lnitefl States, residing 'at lhiladelphia, in the eountiv ol' Philadelphia and State ot: Pennsylvania, hareinvented certain new and uset'iil lmprovelnents in Door-Cheeks, ot which the following is a speeitieation.

My invention relates to door checks, and partieularl)Y to .ifrictional cheeks, the object ot the inrtnition -being to preside a cheek which shall permit a spring-actuated door in closing to inoi'e easiliY over the lirst part ot its path, to be gradualhv cheeked as it nears the door jainh, and tinallhi1 to be practically l'reed fromltrietional engagement to permit the. full action ot' the door spring when the door is within a t'ew inches ol ilie easing.

'lo these ends my invention consists in a l'rictional door check arm haring a graduall)r increasing thickness trom. its rear to a point near to its tree or lorward end and then Aa rapidly decreasing thickness to this end, in combination with a device attached to the. door t'rictionall)v engaging said arm.

.i have shown one embodiment oi" my invention -in the accompanying drawings wherein7 f lt`igure .l is a perspectivi'ry View ol' the upper part ol a door with my device attached. Fig. l2, is a side elevation olt the check. Fig. 3, is a transverse section across the door bracket. and the arm. ltig. 4, is a perspees tire ot the. door bracket detaehed ltig. 5, is a tragmentar),v side elevation ot' the lorward end otx` the arm, the. lriction disk being at the checking point, and Fig. t3, is the saine as lt'ig. 5, the l'iiciion disk however being l e `yond the checking point.

[Like rel'erence characters throughout. the se\f'e.ral views designate like parts.

My cheek is intended to be applied to a door, gate or other hinged closure ol" like character, and though l have shown it as ap plied to a door A, l do not` wish to be limited thereto. 'lhe cheek consists broadly ot an arm 2 ot" an)` cross sectional t'orin pivotalh connected at its rear end to a gate post or as shown in the drawings, to the door jainh l. 'lhis arm acts in conjunction with e spring pressed l'riction slide carried on the door, the slide moving along the arin as the door is ope-ned yr closed- 'lhe face. of the arm. which contaets'iwith the slide is so made that it will gradually increase the t'rictional contact bel t i t tween the slide and arm astlie door closes, under the impulsion ot the. spring C.

ln detail my preferred construction coniprises a tlat arm l slotted as at 3 from the t'ront end to a point adjacent to the rear end. 'lhe rear end ot the arin pii'oted by a pin tle bolt t to a bracket 5 for horizontal moreinent, the bolt being provided with a wing nut ti and an ordinata" uut t5 whereby the arm mayY he adjusted to a looser or ltighter engagement with the bracket 5.

Une tace ot the arm, prel'erahlv the under tace is tlat t'or sliding contact with the upper tace ot an angular bracket T attached by screws to the tare ot the door-at its upper margin. 'lhe other tace ol' the arml is eut aii'a)v hetiond the rear end ot the, slot 3' as at ZZ. and t'rointhis point int-lines upwardly ydln-it is the plate gradualh` thickens) to the point 2', which is located short ofthe termination ot' the slot CYS. ltroin this point 2 the upper tace. ol'` the arm inelines downward to the end thereot', that is the arin lessens in thickness.

Passing loosely through the slot 3 and in one of the perl'orations S in the bracket 7 is a bolt Q, the upper end ot' which is provided with a notched' head tt", and thelower ond with screw threads, a plain nut and a Wing nuty ttt. Resting on nut it) is a washer 11. Between the washer il and the under side ol the bracket T is a spring l2. By turning the nuts ttt, 10 the spring may be compressed to. a greater or less degree between Athe washer and the bracket, and hence will draw downward with more er less st reugth upon the bolt t). Between the head .3 ot'` the holt and the upper lace ol the arm 2 is a contact. piece or friction plate i3 ol' disk t'ori-.iwliieh contacts with the upper l'aee ol' the arm. It will be plain that h i" screwing the nuts. lt), 10 'npward on the holt the l'rietion disk will he drawn down against they up )er lace ot the arm, thus increasing the t'rii-.tional contact ol' the disk with the arm. .lt will be plain also that by loosening the said nuts the 'friction lwtween the arm and disk may be. reduced to an)r degree desired. n

ln service the. nuts it), l0' are so adjusted. that the disk' l hears but lightly against the arin when the disk is iu its rearniost position.

ns the door closes however the bolt 9 and the disk are carried along the arm. The gradual thickening ol the arm Wedges outward on the disk 13 compressing the spring and thus gradually increasing the frictional contact between the disk and the arm until the disk reaches point 2 wherel the maximum frictional resistance occurs. At this point the door is some inches 'from being completely closed, the number of these inches being a matter of adjustment as will be later described. As the friction disk passes the point 2 however, as shown in Fig. 6, the tension of the spring is relaxed, there is less frictional Contact and the door spring C is free to act toclose the door inv the usual manner.

- I have shown thebracket 7 with a plurality of holes 8. This permits the point at which the door will be freely acted upon by its s ring to be adjusted, as the further along the bracket is set, the less distance the door will move inclosing before it reaches and passes the point 2, and is free to move under the impulsion of the spring C. Of course the bracket 7 might be set `upon the door at any desired'place and this same result be accomplishecl, but the plurality of perfor-ations 8 permits this point of rapid closing to be adustable Without the necessity of shifting the bracket itself. [It will be obvious also that by tightening the nuts l0, 10 upon the bolt 9 the door may be held at any desired position, and also that it may be so tightened that the door would not under ordinary circumstances fully close, but would be held somewhat open by the disk reaching the oint 2, at which point the spring 12 would be so com ressed as to hold the door from closing. llt will also be seen that the door may be easily closed or opened by hand in the usual manner and that the device is capable of reventing the slamming of doors whether t e door is acted upon by a door Spring or by a person passing therethrough.

While I have shown whatl I believe is the preferred construction of. my door check, I do not wish to be limited thereto ,"as the principle thereof could be embodied Vin many forms. l f" r y My device is simple, easily a plied, and may be uicklydisassembled when desired or entirdly detached. I have shown the checkv as applied to the upperend of a door and door jamb and to a case where the face of the 4door jamb is parallel with the face of the' door when closed. It is obvious however, that as the bracket 5 is pivotally connected to the shank of'the arm 2, the bracket maybe as easily applied to a jarnb which rejects out 'at a right angle to the face of the oor. The check may be ap lied either to the u per end of the door as sfiown or to the middlh portion thereof. A

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. A frictional door check having an arm adapted to be pivotd at one end to a doorv the face of said arm and in frictional contact therewith, land ine/ans whereby the tension of said spring may be increased or decreasml, said arrn being relatively thin at its rear end, then gradually thickened towards its forward end and then decreased in thickness to its extremity. v

2. A frictional door check havinga bracket adapted to be supported on a door, a friction'al contact piece mounted in said bracket adjacent to one face thereof, an ari n adapted to bc pivcted-at one end to a door jainb, said arin passing between the door bracket and the contact piece in lrictional contact therewith and movable there across, and'a spring for forcing the contact piece against thc bracket, said arm being relatively thin at its rear end, then gradually thickening to its forward end, and then decreased in tl-iickucss to its extremity.

3. In a door check, a bracket adapted to be attached to a door, a bracket adapted to be attached to a door janib, an arin pivotcd at its rear end to the door jainb bracket, a bolt passing through the door bracket, a frictional contact plate on thc'upper end of the bolt contacting with said arm, a spring mounted on saidbolt retracting the saine, and means connected therewith for regulating the tension of said spring, said arm being relatively thin at its rear end, then graduallythickening towards its forward end and then decreasing in thickness to its extremity.

4, In a door check, a bracket adapted to be attached'to a door, a bracket adapted to be attached to a door jamb, an arin pivoted at its rear end to the door jainb bracket and having a slot longitudinally therethrough, a bolt passing through the 'door bracket and through said slotted arm, a frietional contact plate on the upper end of said bolt contacting with the upper end of said arm, and a spring mounted-thereon for retracting the saine, said arin being relatively thin at its rear end at the beginning of said slot, then thickcniiig towards lits forward end and then decreasing in 'thickness to its extremity.

5. In a door check, a bracket adapted. to be attached to a door jamb a bracket adapted to be attached to a door and provided with a series of perforations in line with each other, a slotted arm pivoted at its rear end to the door jainb bracket, a bolt passing through one of the perforations of the door bracket and through the said slot in the arm, africtional contact plate on the upper end of the bolt contacting with said arm, and a spring mountedv on said bolt for retracting the saine, said arm being relatively thin at its rear end, then gradually growing thicker towards its forward-end, the maximum of said thickness occurring short'of the end of the slot the arm, und than deci-casing in 'thickness lo its azitreniity.

in u door check, n bracket fnlsiplud Lr be attached tu u door frame, n lnngitinjliiuiily :Lslocd am; pivotcd it one und m sind brrwlcrt for mweinmil in u horizontal plane, n, annie fur xfotiiig; Suid zii-n1 to the vbrzicflrt pruvirhicl with n nur, n bracket adaptud tu be zitvtarhud to a duur having n lint upper iure upon which the :urn vests, uuid hice having; :L Serio@` ui parlor-allons, :i bull; passing through one nl the pnrforeitiuiis nl' Lin door lnz'whut und through the slot nl' Llnl urni, :i lric/iniml Contact plate on the upper end nl' ih@ buity contacting with the upper faire of said :ii-ni, n unilud spring surrnnnding:r sfr-id huily lwlou Suid bracket, :ind n nui` un said 'nuit i'ur ruintivrly lhin nl; its reni' und, than grudunlli' thickening townrds'lts iorward 9nd rmirhiny; its` innrxiniuni thiuknuss ull u, punit jus'dslmri,

loi thu und of s( .d slut., und then hrronsing f sing ,hc smid spring, .said nrxn bring; ninand ln'wing nn outwardly 'projecting portion uilh n I hrt uppcr liuto, said portion bring p0roinnnl, n slnliud nrln pivotcd niv one ond to lha door jannh bruchut, :L pintlo holtA fur plv ning said funi, n bolt passing through thv duur bracket and through smid slnltud .iu-n1, n contact dish loosely suwounding 1hr` uppur unl nl' :mid holt :md runlurling with [hr np- ;inr incr: nl' said anni, :i nui` on tho lowvr und of said holt, n Washer supported hy' lh@ nut, :rfid :i coihd spring nnnintrd un unid boil, und huid hulrroun sind unshor :1nd the under faire, nl' Suid duur ln'ucluiet, said nrni bring ruhi- Llvrly lhin'nl'` its ruin' end lwlrinnini; nl, u. point rum-wurd o]l the snid slotl :1nd thun gradually growing thicker nl, iis forward und rcnrhingg iis maximum thickness ai n punit

Images