US1184215A - Door-check. - Google Patents

Description

J. J. SANTIN.

DOOR CHECK.

. 7 APPLICATION FILED AUG-25 I915 I 1 ,184:,21 5. Patented May 23, 1916.

3 SHEETSSHEET 1.

Q] (fa/7023621 J. J. SANTIN.

DOOR CHECK.

APPLICATION FILED AUG-25. 19l5.

- Patented May 23,1916.

3 SHEETS-SHEET 3' STATES PATE JAMES J. SAN'IIN, 0F RENO, OKLAHOMA.

DOOR-CHECK.

Specification of Letters Patent. Patented May 23, 1916,

Application filed August 25,1915. Serial N 0. 47,273.

' To all/whom it may concern 1 1 T Be it known that I, JAMES .J. SANTIN,

I a citizen ofthe United States, residing at El Reno, in the county of Canadian and StatexofOklahoma, have invented certain new 7: and useful Improvements in Door- Ghecks; of. which the following is a specification. 7 p I j. i

This invention relates todoor checks and has for its object the provision of a simple,

' easily applied andeff cient device by which the closing movement-of, a door will be checked or retarded so that slamming ofthedoor will be prevented while positive closing of the same will be accomplished:

7A further object vofthe invention is to provide a door checkvwhich will not be dependent upon fluid or liquid pressure and which will, therefore, be inexpensive to maintain, and a still further object of the invention is; to provide a device 7 for the stated purpose which maybe easily rendered f inoperative when so desired.

Other objects of the invention will appear as the description of the same proceeds, and the invention resides in certain novel features which will be particularly pointedout in the'claims following the description.

The invention is fully illustrated-in the annexed drawing, in which: v

Figure l is a side elevation of my improved door check, showing the same in. its

operative position; Fig. 2 isv a plan viewthereof; Fig. 3 is an enlargedvertical section on the line 3-3 of Fig. 2; Fig. is a section takenon the line 4-4 of F g. 2;

'Figs. '5 and;6 arev plan views showing different positions of the parts to illustrate the operation; Fig. 7 is a-detail perspective view.

.In the drawings, the reference numeral 1 indicates a swinging door and 2 the frame within which the door is mounted- In carrying out my invention, I secure to the door frame, immediately above the door,.a main frame or bracket consisting of a vertical back portion or plate 3'which is adapted to Ifit directly against the door frame or against the wall and has a forwardly extending hori- I zontal bar or base plate 4proj ecting fromits lower'edge. "At the upperend of the back plate or standard 3 is a. lug 5 to whlch is secured a forwardlyprojecting bar or' arm v6 which isadapted to support the upperend of. a rotary shaft 7 having its lower. end

stepped in the supporting bar 4. If so desired, a cyllndrlcal housingor casing. may be secured over the upper keeperiarm or bracket 6by the same rivet 8 whichsecures said arm gularopening in a pinion 11 and a similar opening in a cross bar 12 disposed above the pinion. It w ll be readily noted, upon reference to Figs. 3 and 4, that the pinion rests upon and supported by the lower bar 4 and the crossbar 12 may rest directly upon the pinion. The ends of the cross bar 12 are. notched or slotted, as shown at 13, and in the said notched or slotted ,portlons are pivotally mounted the governor arms 14which extend-upwardly from the sa d crossbar and areprovided at their upper ends With weights. 15, as clearly shown. Springs 16 extend between the governor arms 14 and the shaft 7 so as to nor: mally holdthe governor arms retracted, as indicated in Fig. 3. The lower ends of the governor arms are turned outwardly, as

shown at 17, to provide presser fingers which idly by the endsiof the bar 4. The'presser fingers or feet 17 may bear directly upon the brake ringwl8, but I prefer to attach to the ends of the cross bar 12 a loosely mounted ring or shoe 19 which extends under the fingers or presser feet 17 so that, when the said feet are thrown downwardly in the 0pera'tion of the device, the shoe will be forced against the brake band and an extended bearing against the said brake bandeffeeted, thereby more effectually retardingthe movement of the door and preventingslamming of the same. i Y

I The pinion 11 is engaged by a rack bar 20 which is of the peculiar ogee shape shown in F igs. '2, 5 and 6, whereby, as the door swings either to or from the closed position, therack bar will conform to the anclosing movement of the door. The rack bar passesover and is supported by the bar 4 and is held to the bar but permitted a slight lateral play by a pin or other keeper .1

21 rising from the said bar; As shown most clearly in Fig. 2, one end Oftherack isfree, while the other end thereof is pivotally con-1 "nected ,to a lever 22 having its inner end pivotal'ly supported byfa bracket 23 secured to the door 1'at the'upper edge thereof.

The innerend 'of this lever is turneddownwardly betwe'en-itspivotal attachmentfwith theibracket'28andthe door so as top'rer sent :1 depending stem 'orcbranch 2 1. A

spring is coiledaround'ithis depending portion 24 and has its; lower endjsecu'red to? said branch or stem and its upper end- 7 7 secured to "the bracket 23' whereby,-;when

2 the door immediately upon the openingforce ing emoved. I I l V 7 the :door is opened, the torsional tension of thes'pringwill be increased and the spring will expand or tend to unwind and-close "A link or supplemental lever 26 1m its outer end 'pivotally connected" toth'e lever 22-and the 'rackbar 20 at the point of pivotal connection between saidmembers and the inner end 'of this'link jor s'upplemental" lever is pivoted to a bracket; 27 secured to; the door frame immediately above the door opening and between theplane o'fithe door hinges and the verticalplaneoccupied by the bracket 23 when thedoor' is closed.- The boltor pin 28, which constitutes the pivotal connection between thelevers 22 and'26 and the rack bar 20, projectsabove the said levers, asshownmost clearly inFig; 4:, and a spring "29: is coiled aroundthe said pivot between i of the device will be readily understood from:

the link or lever 26 and a nut or washer"30 upon the pivot so as to maintainthepiw 1 7 fotal connection between the levers'and the rack bar, while at the same timepermitting' a slight vertical movement of said'members so asrto prevent the binding J and consequent breakage of any of thezparts a; i It is thought the operation and'adva'ntages I tlie'foregoing de'scription taken in connec- 'tion with the accompanying drawings; The normal position of the parts, with the door closed, is illustrated in Figs. 1 and 2. The initial movement of the door. is "away from the wall or door frame ratherjthan across edge to..the keeper "21 and the engag'ement V of 7 this edge with the keeper swings, the end" of the rack towardthepinion. Theclosingf movement of thedoor will initially impart,

to therack through the pivotj28,a-bodily' itively' engage the pinion and therack is rackbar to the pinion; The, openingmove' movement parallel with the face tithe-near; it i 7 frame so'thatthe rack willbe caused'topos- 5 connection with the lower end of the lejv er 22 will move said. lever a'ndthe door toward be" carried" into me'shi with he-1 3111101 141,

' when the door startsito cl'ose',i'as1above'de scrib'ed, -and;the'pi-nionwillithen berotated v duringthe'closing inovement "The rotation V of the piniohwill actuate-theshaftl'l 'and throughfit swing the cross bar 12 in a h'ori-1 'zontal plane. 'The rotaryi movement-lief the ernor arms 14 in"a circl'efabout-theshaft 5 asa center and, ift-he-speedof'rotation be?" comes excessive, the tension ofthe springs 16 will be overcome' and the, weights lii' W111- swing outwardly under "the; action offceng' tri'fu'gal forceL- When the :weights swing readily understood; L 1 1,

a It" will thus be readilvhseen that Igh 'provided a very simple device which may be r 11001 a outwar'dl-y-', the "arms14c will,"of coursegfbe swung about their pivotal supports and the j V fee t or presser fingers 17 'will' be'moved L downwar'dly so as 1 to presslkthe. shoe 19 against the-brake 18. i'Asfth e brake 11,05 band 18 is stationary, being secured rigidly ff to the supportingbracket orframe; the 611-] it 'gagement of the shoewith sai'd band will at once create a frictional resistance. which 'will retard the rotation of the shoe'and the crossbar "12,"'the shaft-7 and the pinion- 11 i to lessenthe speed of. the rackbar 20 and p the closing movement of thedoor; as-will be applied to any doo'r'xat a low cost; and which 7 be broken or damag'edithro'u'gh' accident; or

will very efficiently resist the closing" action of the door so as to prevent slamming of the same and permit the d' oorto close ful'lybut quietly, fAs my device ean be veryeconomi- 1 'cally' produced and applied, it' is especially 1 r desirable for attachment toscreendbjors'or. I other idoorsrwhich are of lightweighting7v apparatus willfoccupy very llittle"*space fwhe'nfin useiiandrmay be: easily appli eithe'i a right hand or left h'and' door;

parts are nrsimpnanu: should. ahyoneipart ment-of the door will 'wln dathespr ng- 25 and, when the door is: released; thejspring will at once tend to unwindand througlriits i i the normal close'dicpositronv The raek w ll removed and a new part'substituted without requiring the provision of an entirely new door check. 7

Having thus described the invention, what is claimed as new is: I a

'1. The combination of a vertically disposed shaft, a pinion fixed to said shaft, a

rack bar adapted to directly engage said pin frame, a brake band secured rigidly upon said bracket, a rotary shaft mounted in said bracket, a cross bar carried by said shaft immediately above the brake band, governor arms pivotally mounted in the ends of said cross bar, a brake shoe loosely mounted on the cross bar, presser fingers at the lower ends of. the governor arms bearing upon the brake band to carry the same into frictional engagement with the brake band, means for I centrifugally moving said governor arms outwardly, a lever adapted to be secured to the door, connections between said lever-and said shaft, and a spring connected with said lever and adapted to be placed under tension when the door is opened and to act on said lever'and close the door when released.

3. The combination of a shaft, a centrifugal governor connected with the shaft, a

pinion on said shaft, a rack bar extending copies of this patent may be obtained for past said pinion and adapted to engage the same, a lever adapted at one end to be pivot ed to a door and pivoted at its opposite end to oneend of the rack bar, the remaining end of the rack bar being free, a link pivoted at oneend to the pivot connecting the rack and the lever and adapted to be pivoted at its opposite .end to the door frame above the door, and a spring acting on the lever to close the door.

4. The combination of a shaft, a centrifugal governor connected therewith, a pin ion on said shaft, a lever pivoted at one end to a door, a rack of ogee form pivoted at one end to the outer end of the said lever and having vits opposite end free, said rack extending past the, pinion. and adapted to mesh with the same, a link pivoted at one end to the door frame and at its opposite end to the lever and the rack, and a spring acting on the lever to close the door.

5. The combination of a shaft, a centrifugal governor connected therewith, a pinion on said shaft, a lever pivoted at one end to a door, a rack of ogee form pivoted at one end to the outer end of said lever and having its opposite end free, said rack extend five cents each,'by addressing the Commissioner of Patents. Washington, D. G.

Images