US879542A - Hinge. - Google Patents

Description

No. 879,542; PATENTED FEB. 18, 1908 J. R. HARTMAN.

HINGE.

APPLIGATION FILED JUNE 29, 1906.

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WITNESSES: [1v LWTOR,

A 7701mm '5 JOHN R. jHARTM AN, or DAVENPORT, IOWA.

HINGE.

Specification of Letters Patent.'

Patented Feb. 18, 1908.

Application filed June 29. 1906- Serial No. 324085.

To all whom it may concern:

Be it known that 1, JOHN R.-HARTMAN, a" citizen of the United States, residing at Davenport, in the county of Scott and State of Iowa, have invented a new and useful Hinge, of which the following is a specification.

This invention relates to gate and door hinges, and has for its object to provide certain new and useful improvements whereby the door will ravitate to a closed position and will be e evated to clear obstructions from the floor when being opened. Heretofore, hinges of this character have had relatively small flat bearing surfaces to support the hinge in its openpo'sition' and have required that the swinging leaf member be swung through anarc of more than 90 before the door would stand in an open position.

In view of this objection, it is an important object of the present invention to so construct the hinge as to give the'same broad bearing surfaces to support the door in a stationary position, and to enable the door reachin 'such stationary position when it' is Wung t rough an arc of 90 degrees. v

It is also proposed to embody the invention in the nature of a butt hinge wherein the liftingaction is produced by a cooperative engagement between the hinge pintle and one of the knuckles of the hinge.

A still further object of the invention is to enable the stamping of the hinge leaves from sheet metal.

With these and other objects in view, the present invention consists in the combination and arrangement of parts as will be hereinafter more fully described, shown in the accompanying drawing and particularly pointed out in the appended claims,'it being understood that changes in the form, proportion, size and minor details may be made,

within the sco e ofthe claims without de-- parting from the s irit or sacrificing any of the advantages of t e invention.

In the drawing: Fi e 1 is 'a face view of the hinge in its close position. Fig. 2 is a sectional view thereof taken through the knuckles of the hinge leaves. Fig. 3 is a perspective viewillustrating theelements of the hinge separated. Fig. 4 isa view similar to Fig. 2 showing an arrangement of the hinge for light doors. c

' Similar numerals of reference designate corresponding parts in all of the figures of the drawing.

Referring at first more particularly to Fig. 3 of the drawing, it will be seen that the stationary member 1 of the hinge is in the nature of a flat plate pierced by countersunk openings 2 for the reception of screws or other fastenings. At the inner straight upright edge of this 'late are two eyes or knuckles 3 and 4, 'eac of which is formed by bend' a lateral extension of the plate, from w 'ch it will be understood that it is proposed to first stamp the plate from sheet metal and then bend the eyes 3 and 4.- Each eye or'knuckle is in the nature of an 0 enended tube, the plane of the'bottom of w ich dis osed at substantially right angles to the 'p ane of the plate 1, the u er outer portions of the respective knuc es being cut,

away or beveled as at 5 and 6. These beveled portions take away substantially one half of the tops of the knuckles leaving the other halves 7 and 8 flat, and in substantially horizontal planes when the hinge is in use.

A plug 9 is driven into the lower end of the knuckle 4 and is rigidly held therein in any suitable manner, as for instance by means of arivet or othenfastening 10. The lower end of this plug projects below the knuckle and is formed into an ornamental knob 11 of any approved shape. The function of this plug is to close the lower. endof the knuckle 4 and thereby form a socket which is open at its top and closed at its bottom. The inner end of this plug is cut away orbeveled, as at 12, u on the same side as the beveled portions 5 an 6 of the knuckles, and also disposed in substantial parallelism therewith. g

The movable hinge member 13 is a plate of substantially the same size and confi ation as the hinge member 1 and isprovi ed substantially midway of its ends with an open space between the knuckles 3 and 4, the

difference in length being designed -to accommodate the vertical movement of the hinge member 13 as will hereinafter ap ear. About midway between the ends knuckle 14 there is a countersunk opening 18.

For pivotally connecting the hin e members when they have been assembled with the knuckle 14, received between the knuckles 3 and 4, there is a hinge pin or pintle ing as a handle for applying and removing the tions upon the floor.

pintle. The under side of the knob 21 has a downward extension 22 having its inner face beveled, as at 23, to correspond with and a lie a ainst the beveled face 5 of the knuckle 3, w 'le the outer face of this extension is convexe'd to fill out the knuckle 3 across its beveled portion. After the hinge pintle has been set in place, asuitable fastening 24, preferably a screw, is passed through the opening 18 in the knuckle 14 and engages the threaded opening 25 of the pintle, thereby to rigidly connect the v 13 and the pintle. With the hinge assembled, as in Figs. 1 and 2, when the hinge member 3 swings back, the lower beveled end 20 of the hinge pintle works over the beveled portion 12 in the bottom of the knuckle 4 and causes the pintle and the hinge member 13 to rise, whereby the door will be elevated when swinging open so as to clear obstruc- When the door reaches a position at substantially right angles to that of its closed position, the flat lower end 26 of the knuckle l4 and the fiat lower end of the extension 22 of the pintle will rest upon the fiat to s 8 and 7 of the knuckles 4 and 3, whereby t lde door will be held stationary in its open position when it has been swung through an arc of substantially 90. Upon swinging the door back towards its closed position, the beveled lower end of the pintle will ride down over the beveled portion of the plug 9, whereby the door will gravitate to its closed position and will be he d closed by gravitation. h

It will here be explained that the lifting action is accomplished solelyby the beveled lower end of the hinge pintle working through the beveled upper end of the plug 9, these bars being hardened to withstand wear. The beveled portions of the knuckles are not intended to aid in the elevation of the hinge member 13, but are beveled to permit of the necessary vertical play of said hinge member.

However, the fiat tops of the knuckles 3 and 4 afford relatively broad bearing surfaces for the flat lower ends of the parts 22 and 14, when the dooris open, and these porthe swinging hinge member tions come into play when the door has been swungthrough an arc of substantially 90,

wherefore the door will stand open before it has been swung clear back against the wall.

By having the lifting action affected by the hinge pintleand the lug 9 alone, I avoid hardening the knuck es, which materially reduces the expense in the manufacture of the hinge, and also enables the provision of relatively large flat bearing surfaces for the knuckles when the hinge is open, thereby to secure a stable support for the door when the latter is open.

For light doors, such for instance as screen doors, it is not necessary to bevel the knuckles 3 and 4, as shown in Fig. 4 of the drawing, it being sufficient to have the plug 9 and the pintle 19 beveled at 12 and 20 res ectively, to effect the necessary elevation o the hinge member 13'. In this arrangement, the knuckle 14 engages or is in closeproximity to the knuckle 4 when the hinge members are in alinement, there being a sufficient space between the top of the knuckle 14 and the bottom of the knuckle 3 to permit of the necessary upward movement of the knuckle 14 with the hinge member 13. To support the door in its open position, the top of the plug 9 is flat, as at a, while the lower extremity of the pintle 19'is flat, as at b, so that, when the door is swung open, the flat lower endof the pintle rests upon the flat u per end of the plug and there y supports t e door in its open position.

It will here be explained that the form of hinge shown in Figs. 1, 2 and 3, is especially designed for heavyv doors, the knuckles being provided with flat ends, so, as to form supports 1n addition to the su port afforded by the flat u per end of the p ug 9 and the fiat lower end of the pintle 19. While the plug and the pintle may have fiat terminals in the form of inge shown in Figs. 1, 2 and 3, said flat terminals may be omitted without materially effecting the utility of the hinge, as the flat ends of the knuckles are sufficient to hold the door in its open osition.

Having thus escrib d the invention, what is claimed is:

A hinge comprising two leaf members, one of which is provided with perforated spaced knuckles, the'up er end of each of which is formed by two p am surfaces disposed at an obtuse angle to each other and which lie. in

planes at right angles to the lanes of the leaf member and the meeting e ges of which are diametrically dis osed across the knuckles, a' piiig located in t e perforation of the lower uckle and having its upper end rovided -.with angularly disposed surfaces ying 1n iio member being formed by the meeting surwhich is parallel With the beveled surface at faces of two planes dis osed at an obtuse the opposite end of the pintle.

angle to each other an which lie at right In testimony that I claim the foregoing as angles to the (plane of the leaf member and my own, I have hereto afiixed my signature 5 the meeting e ges of which are diametrically in the presence of two Witnesses.

disposed across the knuckle, a pintlel ing in the perforations of the knuckles, and aving JOHN HARTMAN' a beveled end which engages the inclined end Witnesses: of the plug, said intle having at its head a R. V. MCCORMICK,

10 lug provided Witli a plane. inclined surface JNO. M. HELMIGK.

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