US967769A - Door-closer. - Google Patents

Description

W. K. HENRY.

DOOR CLOSER. APPLICATION FILED 21, 1910. i 967,769. Patented Aug. 16, 1910.

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'WJK. HENRY.

vDOOR GLOSBR.

APPLICATION FILED MAR. 21, I910.

Patented Aug. 16, 1910.

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DOOR CLOSER.

Patented Aug. 16,1910.

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W. K. HENRY.

DOOR CLOSER.

APPLICATION FILED MAR. 21, 1910.

Patented "Aug. 16, 1910.

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WILLIAM K. HENRY, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO I. & F. CORBIN, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

DOOR-CLOSER.

Specification of Letters Patent. Patented Aug, 16, 1 910.

Application filed March 21, 1910. Serial No. 550,599.

To all whom it may concern:

Be it known that I, WILLIAM K. vHENRY, a citizen of the United States, residing at New Britain, county of Hartford, State of Connecticut, have invented certain new and useful Improvements in Door-Closers, of which the following is a full, clear, and exact description.

My invention relates to improvements in door closers.

In the preferred form of my invention the closer is associated with door checking mechanism of any suitable construction.

The object of the invention is to improve the closer mechanism in a variety of ways as will later be explained.

In the drawings'-Figure 1 is a side eleva-- tion of a combined door closer and check, certain parts being shown in sect on to reveal the interior arrangement; Fig. 2 is a similar View minus the check and showing the parts in different position; Fig. 3 is a view similar to Fig. 2 but showing the parts in still another position; Fig. 4 is a plan View of the assembled mechanism; Fig. 5 is a plan view, the cap and interior movable parts of the closer being removed; Fig. 6 is a view of the under side of what I will term the lower dog; Fig. 7 is a view of the upper side of said dog; Fig. 8 is a side elevation of the clutch; Fig. 9 is a view of the under side of the cap for the closer case; Fig. 10 is a view of the top side of what I will term the upper dog; Fig. 11 is a view of the under side of the upper dog; Fig. 12 is a view of the under side of the lever arm; Fig. 13 is a vertical sectional view of what I will term the combined center support and bushing.

1 is the closer case or housing preferably of cylindrical outline and provided with a I mechanism, the same being preferably integrally formed with the case 1 and contaming any suitable checking mechanism, preferably of the so-called liquid type.

4 is a spindle passing centrally down through the case 1 and through the partition wall at the base of the same between said case and the cylinder 3, the lower part of the spindle being suitably connected with the checking mechanism.

5 is a lever arm, such as customarily connected to the upper end of thespindle 4,

and by which the closer and check is connected to a door casing, the check itself being usually connected to the door proper.

It should be understood that the apparatus is adapted to either a right or left hand door, and that when properly applied to a door, the opening and closing movement of the door imparts a swingingpmovement to the lever arm 5.

6 is a clutch rigidly mounted upon the sleeve 7, the upper end of the latter projecting through the cap 2 and is provided-with a toothed or notched flange 8 .at a point outside of the ca 2. The clutch 6 is provided with opposite y facing clutch teeth or shoulfders 9--10. Rot-atably mounted upon the sleeve 7 above and below the clutch 6 are dogs 11-12 respectively. 'The upper dog 11' has an abutment tooth or shoulder 13, which is arranged to be en aged by the clutch teeth 9. The lower 0g has an abutment tooth or shoulder 14 arranged to be engaged by the clutch tooth 10. The clutch 6 may be formed upon the sleeve 7 in any suitable way or may be separately formed and secured thereto as by a screw 15.

The bottom of the case is provided with a back stop 16 arranged eocentrically while theunder side of the lower dog 12 has a stop shoulder 17 which is so arrangedas to engage the aforesaid back stop 16, which latter acts as a back stop to limit the rearward turning movement of the dog- 12. The cap' 2 is provided on its under side with a back stop 18 while the up er side of the upper dog 11 is provided w1t a stop shoulder 19 arranged to-co-act with the back stop 18, the latter servin to limit the rearward turning movement 0 the upper dog.

20-is a coil spring, one end of which is anchored in a notch 21in the upper do 11, the other end being anchoredin a note 22 in the lower do 12. The action of the spring 20 is to pu l the two dogs toward the two back stops 1618 respectively.

. 1 23. is a combined center support and bushan inner air chamber 24 with a return flow duct 25. It mayalsoucontain a packing 26, held by a spiral spring 27 against the-inner end of an adjustable gland 28. The length of this bushing not only permits the same to be employed as a center support for. the

various rotatable inner parts, namely, the

'clutch and dogs, but also by reason of its length absolutely prevents the possibility of any liquid from the check chamber working up into the spring chamber.

29 is a dog or pawl pivotally mounted on the under side of the lever arm 5 and arranged to engage in any one of the notches in the flange 8. By preference, the pawl 29 is double-ended whereby it may be easily adapted to right or left hand adjustment.

The cap 2 is held against turning on the case 1 in any suitable way, for example, by a pin 30, carried by the under side of the cap and "arranged to take into a corresponding opening in the upper end of the case 1.

' It will be observed that the rear sides of the teeth or abutment shoulders 913 and 10-14 arelcorrespondingly beveled, which is a referred construction, since it permits the 0g 11 to make practically a complete forward revolution. The same is also true of the dog 12. When it is desired to adjust the spring finally to determine its force on the lever arm 5,1a spanner or suitable wrench may be applied to the flange- 8, and the clutch turned in the desired direction,

according to the swing of the door to which the check is applied. This turning movement turns the clutch 6 and one of the dogs Finally the paw posite position and the pawl again moved intoits flange engaging position.

- It will be observed that all the arts are so proportioned and arranged that t e greatest strength and durability is secured. The parts are also so designed that they may be manufactured at comparatively small cost. As shown, the spindle 4 not only takes a hearing within the bushing 23 at a point intermediate the length of the former but it also is preferably ste ped at its lower end in a bearing 31 in' the ower end of the check case 3 so that side strain on the spindle is resisted most effectively.

When assembled, it willbe seen that all of the rotatable parts find a common support uponthe bushing 23 and are thereby guaranteed .at once effective and accurate alinement. Further than this, it permits the clutch .and dogs to be made of maximum proportions and to be engaged for driving purposes near their periphery where the greatest leverage-is afforded, all of which features contributetothe strength and durability of the entire apparatus.

What I claim is: a

1. In a door closer, a housing, a rotatable spindle, a hollow center support therefor, a lever arm connected to the spindle, a doubleacting closer spring, a rotatable clutch, means for adjustably connecting said clutch with said arm, including a sleeve carrying the clutch, and means 'standin on said sleeve and at opposite ends of the c utch for alternate en agement thereby, the ends of said spring e1ng respectively connected with said clutch through the medium of said means, said sleeve surrounding and being supported bysaid center sup ort.

2. In a door closer, a housing a rotatable spindle, a lever arm connected thereto a double-acting closer spring, a rotatable clutch, means for adjustabl connecting said clutch with said arm, inclu ing a sleeve carrying the clutch, and means standing at 0pposite ends of the clutch and independently rotatable on said sleeve for alternate engagement by the clutch, the ends of said s ring being respective? connected with said c utchthrough the me um of said means, and a single support in common-to said sleeve and said spindle and between the same.

3. n a door closer and check, a-housing a rotatable spindle, a lever arm connected thereto, a double-acting closer sprin a m tatable clutch means for adjustab opposite ends of said clut'ch' for alternate engagement thereby, said springs being 0 eratively connected with sa1d dogs, the en s of said spring being respectively connected to said clutch by said dogs, a back sto device for each of said dogs to limit the ackward turnin movement of the same, and a central tubular support for said clutch and dogs, said spindle passing through said support and having a. bearing within the same, and a checking device connected with ward turning movement of the same, a com tral tubular support for said clutch and dogs, said spind e passing through said support and having a bearing within the same, said center support havin an elongated annular air space and a pac g atone end of said air space, anda liquid door checking deoon-. necting sa1d clutch with said arm, ogs at a lever arm rigidly secured thereto, a oubleacting, s ring indirectly connected at both ends .wit said spindle, said indirect connection including two rotatable do s, a clutch clutch and said lever arm, said clutch and dog mechanism having a central fixed bearing'support independent of said spindle.

6. In a reversi le door closer, a spindle, a

lever arm rigidly secured thereto, a doubleacting spring indirectly connected at both ends with said spindle, said indirect connection including two rotatable dogs, a

clutch cooperating therewith, reversible and adjustable means of connection between said clutch and said lever arm, said clutch and dog mechanism having a central hearing support independent of said spindle.

7 In a door closer, a housing, a central tubular bearing support extending from the lower end of said housing to a point near the upper end of said housing, a sleeve ro tatable thereon, a clutch mounted-upon said sleeve, two dogs rotatable. on said sleeve and arranged one above and one below said clutch and arranged to be alternately engaged by said clutch, a back stop for each of said dogs to limit the rearward turning movement of. the same, a coil s ring surrounding said parts and engage at opposite ends with said dogs and operating to turn them in a. rearward direction toward said back stops, at spindle passin through said central tubular bearing, a Ievernarm fixed on the outer end of the spindle, and means for" reversibly and adjustably connecting said lever arm to the clutch sleeve externally of the casing. cooperating therewith, reversib e and ad-, justable means of connection between said 8.. In a closer mechanism, a caslng, a central rotatable spindle, a stationary tubular center bearing surrounding said spindle, a

lower dog mounted to rotate relatively to said s'pindle, a clutch arranged above said dog and to engage said dog when turned in one direction for the purpose of rotating 3 the latter, a sleeve-like extension from sai clutch surrounding and supported by said center bearing, an upper dog rotatably mounted upon said sleeve-like extension and arranged to be engaged by said clutch, a back stop for each of said dogs, a removable cap for said casing, said cap carrying one of said back stops, a coiled s rin surrounding said parts and connecte wit said do and arranged to move thein toward said back stops, a lever arm fixed on the spindle, and means for adjustably connecting said lever arm with the sleeve extending from said clutch, said lever connecting means being shiftable for either right or left hand rotation of the spindle.

WILLIAM K. HENRY.

Witnesses:

IDA M. HUNZIKER, CHAS. A. PEARD,

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