US1672411A - Door check and closer - Google Patents

Description

June 5, 192s. 1,612,411

F. H. HAMILTON D OOR CHECK AND CLOSER Filed Nv. 19, 1925 f? j (1 *f y i: 4 'gg /45 I3\ l if ,mvlalilwm .ml'nlwl' ml 50 l ya es 33 7 Patented June 5, 1928.

. unirse TES FREDERICK H. HAMILTON, OFNEWARK,

NEW JERSEY, As'sIGNoR 0E ONE-HALE To YROBERT i'AEGER, 'oE'LrNpEm rNEW JERSEY, AND'oNE-HALE To CHARLES n. RY-

EERG, oEERooxLYN, NEW YORK.

EooR CHECK AN-E eEosER.

Application sieanovember 19, 192e. serial No. 149,392.

This invention .relates to .closing devices as applied to common swinging doors hinged to their frames 1n a vertical plane and 4has as one of its objects the provision of a noiseless, automatic means to close a door lin a quiet manner.

It is a further feature to provide an operating means of unusually simple character, easy to attach and of moderate expense to manufacture.

Door closing devices of the usual types are objectionable in appearance, costly to construct and, due to the pneumatic or hydraulicelements employed, require adjustmentand eventually wear to such an' extent as to become useless.

It is therefore the principal purpose of the present invention to provide a device in which the disadvantages of ordinaryehecks and closers are avoided.

These features of the invention are at tained by the novel construction and combination of parts hereinafter described and illustrated in the accompanying drawing, forming an important componentv of this disclosure, and in which 1'- Figure 1 is a top plan'view of the device showing the door in a closed position.

Figure 2 is a similar view of the same showing the door partially opened.

Figure 3 is aside elevational view thereof, drawn to an enlarged scale. p

Figure 4 is a fragmentary artial transverse sectional view illustrating the arm pivots. -v v Referring in detail to the drawing, the numeral 10 generally designates' a door frame to which is attached by hinges 11 to one of the longer edges of a door 12.

Secured to the lintel of the door frame, at a point near the upper end of the door 12 opposite the hinged edge, is a rightl angle bracket 13 carrying a stud 14 provided with a body 15 around which is coiled a torsion spring 16, its upper end 17 being set in the bracket 13 and the lower end 18 being set in the end of a thin flatI arm 19 rotatably mounted on the stud 15 the action of the spring being to press the arm in the direction of the wall containing the door opening. The opposite end of the arm 19 is pivoted on a stud 20, surrounded by aspacer 21 be` tween a washer@ and ,the heed 23 0f the stud the opposite end of which is engaged by a nut 24 resting on the washer.

Mounted on the spacer 21 is a helical torsional spring 25, one end 26 'of which engages the arm 19, and the other end 28 engages a second arm 27, the last named arm being rotatable on the stud 20y intermediate the spacer 21 and the head of the stud, the spring operating to press they door into a closed position.

The outer end of the arm 27 is rotatably securedon the reduced portion of an internally threaded stud 29, intermediate its shoulder 30 and a washer 31 and is held in po si tion by a screw 32, thestud being riveted at 33 to a right angled bracket 34 fixed on the door 12 in register with the bracket 13.

Coiled about the stud 29 is a torsion sprin 35, one end 36of which is set in the arm 2 and the other end 37 in the bracket 34, this sp'ringalso exerting its tension in an effort Fixed intermediate the washer 22l and thel nut 24 is one end of a tension spring-44, the other end being secured on a post 45 attached on the bar 39, the tension of the spring being exerted to press the wheel firmly against the bar, which action becomes intensified as the door assumes a nearly closed position.

Thus in operation, when the door is closed as in Figure 1, the spring 44 is expanded. Upon opening ythe door, the arms 19 and 27 spread on the pivot 23 against the action of the torsion spring 25. At the same time the spring 44 contracts causing the wheel 43 to .ride on'the arm 19 under constantly lessen-y ing pressure.

Upon closing the door, the spring 44 expands and when the wheel 43 engages the arm 19 to ridethereon the speed of the door is checked.

It is to be noted that the main elements are made from fiat stoekand that the cost of constructionis thereby rendered very low.

Although the foregoing is descriptive of the preferred embodiment of the invention, it will be apparent that niinorchanges may be made in its construction, without the exercise of invention or conflictingl with the scope of the claim hereto appended.

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

A door closing device comprising a pair of pivoted arms Vattached respectively to a door and the lintel thereof, a spring adapted to swing said arms inwardly on their pivot, a bar pivoted to the arm attached to the door,

a grooved wheel rotatable on the free end of said bar tol engage the other arm, a tension spring extending from the arm pivot to said bar, and a stop carried 1n the arin adgacent the bar pivot, said stop limiting lthe swing of said bar in both directions.4

Signed at New York in the county of New York and State of New York this 14th day of October, A. D. 1926. f

FREDERICK II. HAMILTON.

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