US1851631A - Builder's hardware - Google Patents

Description

March 29, 1.932. E. H. JOHNSON 1,851,631

BUILDER s HARDWARE Original Filed Feb. 23, 1929 2 Sheets-Sheet l March 29, 1932. E. H. JoHNsoN 1,851,631

BUILDER S HARDWARE Original Filed Feb. 23, 1929 2 Sheets-Sheet 2 g2 f5/51%@ /Z Patented Mar. 29, 1932 UNITED STATES ELvIN 1I. JOHNSON, or WINNETKA, ILLINOIS BUILDERS HARDWARE Application mea February 23, 1929, seriai 110.341,90; IwneweaI 1111111.10, 1931.

My invention relates to builders hardware and more Aspecifically tov door holders.

It includes among its objects and advantages, an improvement in manipulation and lsecurity and an extension in the range of possible operations.

In the accompanying drawings:

Figure 1 is a plan view of a holder according to the invention with the door shown diagrammatically in open position; i

Figure 2 is a vertical section through the central pivot and the `adj acent portions of thearms; f

Figure 3 is a section on line 3-3 of Fig. 1;

Figure 4 is a plan view looking downward at the pivot` end of the lower. arm; and

Figure 5 is a plan view looking upward at the pivot end of the upper arm.

In the embodiment of the invention selected for illustration, the holder comprises pivoted arms and 12 connected by a pintle 14. The ends of the arms remote from the pintle 1.4 are pivoted asat 16 and 18 to a door 20 and door casing 22 respectively. The positioning of the pivots 16 and 18 with respect to the door hinge 24, and the lengths of the arms 10 and 12 are soproportioned that the parts can move from the open position of Fig. l1 to the closed position indicated in the dotted lines in the same figures. In the open position, the arms 10 and 12 are nearly in alinement. A force tending to move the pivots 16 and 18 closer together canberesisted by a much smaller force applied to the pintle 14.

The various adjustment` and control means associated with the arms have been illustrated adjacent the pintle 14. Each Vof the arms terminates in a flat disc or head coaxial with the pintle 14. Thus the arm 10 carries the head 26, which lies below the head 28 on the end of the arm 12. Pintle 14 has a cylindrical portion 30 passing through the head 28 and a threaded portion 32 threaded through the head 26. Thisl makes the nut 34 a mere lock nut to keep Athe pintle from shifting and tightening or loosening the bearing engagement between theV heads 26 and 28. As this type of holder is usually employed at the top of the door, this construction is also a safeguard against mischievous pranks, as a person unscrewing the nut 34 would not succeed in takingthe door-holder apart, and the upper headed end of the pintle 14 is relatively difl'icult of access. The cylindrical portion 30 extendsa material distance into the head 28, as clearly shown at 31 in Fig. 2; This pro-v vides for transfer of the load VatV 31, so that the threads function only to hold the pintle in place. is also embossed with a slightannular bulge at 33 which rides on the washerv and keeps the corners Vof the head from scoring the washer. l

The upper headvof the pintle 14 Positive stop means are provided for preventing movement of the parts beyond Ithe open position' illustrated in Fig." 1. I have shown a toe 36 projecting outwardly and upf wardly from the head 26 `and a lug or fin' 38 projecting downwardly from the arm 12 and outwardly from the head 28. ASince these parts are symmetricalwith respectto the cenlter lines of the arms 10 and12, as clearlyindicated in Figs. 4 and 5, they operate with equal facility not only in the orientation of F ig. 1, but in the analogous orientation necessary when the hinge 24 is at the other side of the door casing, in which case, the toe 36 wouldstrike the opposite'side of the 1ug38.

It is, in most instances, desirable to lock the parts in thepositio'n of Fig. 1 with a'force materially greater than that of the closing spring that may be associated with the door 20 or the door holder. vOn the other hand, a positive lock is occasionally broken in some minor emergency or when some `hasty person uses violentforce upon the door. I have in'- lower surface of the head 28, and a-loclring element 42 resiliently urged in a direction to enter said notches. The spring 44 is housed in a tubular boss 46 in the larm 10 and acts on the element 42 through a force multiplying linkage. I have illustratedV an adjust-V ing nut 48 receiving'the thrust developed by the abutment'of the spring with the shoulder 50 at the top of its housing, andtransmitting this force to a riser 52 pivoted at 54 to the outer end of the transmitting lever 56, which lever is pivoted at 58 ina housing slot 60 `in the arm 10. The distance between the pivots 54 and 58 is materially greater than the dis- -tance fromthe pivot 58 `to the element 42 constituting the active end of the lever 46. This permits the use o f a lighter spring than would otherwise be required.

The force with which the element 42 is held in the position of Figs. 1 and 2 is adjustable by. reason of the screw threaded connection between the nut v48 andthe riser 52.V The upper surface of the element" 42 is made up of beveled side Walls62 y lying at:

such an angle as to secure the bestpossible surface engagement with the sides ofthe notches 40, and Van apex 64 lyingy at such an angle astoy bel horizontal when the lever glower head 'has'a recess 7lV similar to Vthe recess 70. A filling of substantially, non.-

V liquid lubricant in these recesses '.will'keep the parts welljlubricated for a longperiod.` j

i When the parts are moved'abruptly to the Open positionvshown in Fig. lfrom a.closed position, itis desirabletocushion. the shock occurring when the toe 3 6 strikes .the lug 38. I have illustratedaresilient telescopic connection at the end of the arm 10. This comprises areducedy extension 72 telescoped inside a sleeve 7 4 connected to the pintle 16. An abutment 6 on .the extension andan .annular retainingnut 7 8 in the endof thev sleeve, confine the spring 8() under a rather heavy. initial tension. Whenthetoe 36 strikes the lug 38, the remaining kineticenergy of the doorwill `be used up in compressing the spring 80. To avoid a `metallicclick upon subsequent eX- pansion .of the springk ,80, I" providexa: tough leather washer 82 between the face of the. nut .78* and the shoulder at the base: ofthe eX- tension72. .Y Y

. yIt is practically always desirable that the custodian; of abuildingor the' user of such ievergit. is movedrtoopenjposition. This is afdevice-as I have disclosedfbe able to render itinioperative for holding'the door open. Thev .lever 56eXtends beyondthepivot 54, as indi- 'cated at F84', andoverlies the upper-'end of van adjustment screw "86,l threaded throughv the .arm`.10,lanrd having aflat head 88 for; convenient manipulation thereof. A.l few turns of the adj usting. screw'86 will force the lever 56 into the unlock-ed position'withthe ele- -ment 42 low enough to clear theV flats 66,.and y,affew turns in the `oppositeidirection will Vrestore the door holder. to an operative auto- Ymatic'meansgfor holding the dooropen when*- vver 56 to let the door swing shut.

illustrated a ringl 90. thatmay be positioned` independent of the adjustment by means of the nut 48 which controls the amount of the Vforce necessary to break the locking action in the position of Fig. 1 and close the door. The nut 48 is preferably made so that a pair of pliers or the like will be needed to adjust it, so that an unskilled or careless user of the device will not tryv to use the wrong adjustment means. The upper end of the screw 88 isenlarged by riveting as at 89, to prevent carelessv removalof .the screw.

.Under some relatively infrequent condi-V by the endv of thev threads.v The axial. dimensions of the parts vare such that a suitable range of spring tensions can be obtained, but movement of the nut as far up as Ypossible will still .leave enough clearance to permitthelelas indicated in Fig.` 2l, after whichv a slight adjustment of the nut 48 upwardly will bring I have the ringQO against theend of the boss 46 i Y andclock the. dooropenin a positivemanner. This ring'may be sold with the.otherparts of the device, but it can only be positioned r as in Fig. 2by taking the nut 4801i' and putting it on again,'so that unintentional manipulation to Asecure a-positive locking aetion will notoccur. .j

vVithout further elaboration, the foregoing edge, readily adaptthe samefor use under various conditions of service.' Y '5 l/Vhat I claim as my invention, anddesir'e to secure by Letters Patent is y 1. vA. door` holderV comprising, in combination, rigid arms pivoted to each other, lock-` ing means for locking said'arms 1n extended position, and means for rendering saidlocking. means either pos1t1ve, nonpos1t1ve or 1noperative, the means for rendering said locking means positive being a removable element,

wil'lso .fully explainthe -gist of my invention that others may, byV applying` current knowl-V ymeans being partly induplicatelto'operate Y on either side of said stop means.

3. A door holder comprising,.in Combina;l

tion, rigid arms vpivoted to each other,"jnon` positive locking means -pfor locking theparts in extended position, said locking mean-s cornprising a locking element movably mounted on one arm and taking into locking notches in the other arm, said element and notches being V-shaped, a spring, a connection betw'een said spring and said locking element, means for adjusting the ten-sion of said spring, and quick adjustable means for holding said locking element in inoperative position. l

4. A door holder comprising, in combination, rigid arms pivoted to each other, nonpositive locking means for locking the parts in extended position, said locking means comprising a locking element, a spring, and a force multiplying connection between said spring and said locking element.

5. A door holder comprising, in combination, rigid arms pivoted to each other, nonpositive locking means for locking the parts in extended position, said locking means comprising a locking element movably mounted on one arm and taking into locking notches in the other arm, a spring, a force multiplying connection between said spring and said locking element, and means for adjusting the tension of said spring. Y

6. A door holder comprising, in combination, rigid arms pivoted to each other, locking means for locking the parts in extended position, said locking means comprising a locking element movably mounted on one arm said locking element, means for adjusting the tension of said spring, quick adjustable means for holding said locking element in inoperative position, a removable part for making and taking into locking notches in the other Y s arm, said element and notches being V- shaped, a spring, a force multiplying connection between said spring and said locking element, means for adjusting the tension of said spring, quick adjustable means for holding said locking element in inoperative position, a removable part for making said tension adjusting means capable of adjustment to function as a positive lock, stop means for said plates for limiting the opening move- `ment to the locked position, said locking notches being in duplicate on opposite sides of said stop means, and shock absorbing means for cushioning the opening movement by resilient axial elongation of one of said arms.

7. A door holder comprising, in combination, rigid arms pivoted to each other near their ends, the remaining ends being pivoted to a door and a door casing, one of said pivotal connections comprising superposed plates on the adjacent ends of said arms, a headed pintle axially slidable in the upper plate and threaded through the lower plate, a lock nut on the end of said pintle below the lower plate, locking means for locking the parts in extended position, said locking means comprising a locking element movably mounted on one arm and taking into locking notches in the other arm, said element and notches being V-shaped, a spring, a :torce multiplying connection between said spring and

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