US309039A - Hinge - Google Patents

Description

*(N Model.)

J. T. POSTER.

HINGE.

Ptented Dec. 9, 1884'.

UNTTEE STATES PATENT OEEECE.

JOHN T. FOSTER, OF ARLINGTON, NEV JERSEY.

Hiace..

IPECFICATION forming part of Letters Patent No. 309,039, dated December 9, 1884-.

l Application filed April l5, 1884. (No mcdcl.l

To @ZZ whom t may concern:

Be it known that I, Jol-IN T. FosrEn, of Arlington, Hudson county, New Jersey, have invented certain new and useful Improvel, ments in Hinges, of which the following is a termed screw or cam hinges, in which one part of the hinge has a screw-engagement with the other part, so that when the gate or door is swung open, the screw part unscrews or rises out of its socket, lifting the door, so that the subsequent gravitation of the raised partsY automatically closes the gate. Generally in hinges of this class the pint-le part of the hinge is screw-threaded, to screw directly into the barrel part of the hinge, and in this case the hinge is capable of swinging in one direction only. Now, in my improvement the pintlc is a smooth or` plain pin and does not iit directly into the barrel, but into a smooth bore in an intermediate screw-sleeve which screws into the barrel. On the head of this sleeve is formed a crank lug or projection with which the knuckle of the `pintle-leaf of the hinge engages when the gate or door is swung open, so as to turn the sleeve in the threaded barrel, and thus screw the sleeve up out of the loarrel and raise the gate, while the gravitation of the raised parts,when released, automatically closes the gate and screws the sleeve back into the barrel. A hinge of this description is placed both at top and bottom of the gate, but each having threads of opposite inclination, and with the crank-lugs on the sleeves arranged to engage in opposite directions, so that the gate may thus be swung in either direction, and will always tend to gravitate closed.

My invention therefore consists, mainly, in the features here outlined, as hereinafter fully set forth.

In the drawings annexed, Figure l presents a perspective view of my improved hinges shown applied to an ordinary gate, which is shown as swung open. Fig. 2 is an elevation of the pintle half or leaf of the hinge, and Fig. 3 a sectional elevation of the barrel half or leaf. Fig. 4 is a plan view of the upper and lower hinges, and Fig. 5 is a cross-section on line x .r of Fig. 3. Fig. 6 shows a modification.

In Fig. l, A indicates the gate, and b the hi nge-post, and c the latch-post ofthe gateway.

D indicates the barrel halves or leaves of the hinges, which are secured to the hingepost b, while E indicates the pintle-halves of the hinge, secured to the gate, as usual.

f indicates the barrels of the hinges, and g the pintles, which engage together, lout not directly. The pintle as shown is a plain pin, and projects straight down from the knucklelug h, which stands out at right angles from the baseplate or leaf of the hinge, as seen yloest in Fi g. 2. The barrel f of the hinge does not, however, directly receive the pintle, as usual; but the bore ofthe barrel is screw-threaded, and receives an intermediate screw-sleeve, 7c, which is threaded correspondingly and screws therein, and is forlned with a flat head or rim, which seats on the top of the barrel, as shown at the lower hinge in Fig. l, also in Fig. 3. This sleeve k has a smooth bore, and receives the pintle g, which fits loosely or freely therein, as shown best in Fig. 5, also in Fig. l, and the knuckle 7L of the pintle seats on the top or rim of the sleeve and on one side of a crank lug or projection, Z, which rises from theedge of the sleeve, as well shown in Figs. 4, 3, and l. rlhe screw-threads on the sleeve and barrel are preferably of a steep pitch and double, as illustrated, and these threads are of reverse inclination on the two hinges, as shown best in Fig. l, so that the threads of the upper hinge are, say, right-handed, while the threads of the lower hinge are left-handed, as illustrated. It will be also seen by referring to Figs. l and 4 that the crank-lugs on the screwsleeves of the respective hinges are in relatively-.reverse positions, that on the upper hinge being behind the knuckle of the pintle, while that on the lower hinge is in front of the pintle-knuckle, as illustrated. It will therefore now loe seen that when the gate is swung in one direction-say inward, as shown in Fig. lmthe pintle-knuckle of the upper' hinge will engage with the crank-lu g on the upper sleeve, and thus rotate said sleeve in the lharrel, and thus screw it up out of the barrel slightly and IOO correspondingly lift the gate, as shown, which same movement will of course rotate the lower vknuckle away from the crank-lug of the lower sleeve, thus leaving that sleeve stationary in its barrel, while the lower pintle is :raised slightly out of the sleeve to correspond with the slight lift of the gate and the upper pintle and sleeve, as well illustrated in Fig. l. Hence if the gate is now released, the gravitation of the raised gate and its attachments will cause the upper sleeve to rotate backward in its barrel, and thus cause the gate to close automatically, and bring the parts of the sleeve in the same manner as occurred in the case of the lower hingein the former instance. As soon, therefore, as thegate is released, the parts will gravitate back to their positions of repose, as before, and the gate will close automatically in the opposite direction. I-Ience, by this system one hinge acts to close the gate when swung in one direction, and the other hinge acts to close the gate when swung in the other direction, so that the gate is enabled to be swung freely in either direction, and is rendered self-closing in both directions, while the construction of the hinge to accomplish this is very simple. It is easily put together and not likely to become deranged, and is of such a formation as can all be cast without requiring nishings, thus presenting a hinge which possesses many advantages for gates or doors. Vhere it is desired to have the gate or door self-closing only in one direction, then hinges of the same kind may be used both at top and bottom, as will be readily comprehended. In some cases the hinge might be modified, as shown'in Fig 6, without departing from my inventionthat is, the sleeve may bemade plain on the eX- terior to fit in a plain bore in the barrel, while the bore of the sleeve, as well as the pintle, is threaded to engage together. A stop is arranged between the sleeve and the barrel, which prevents the sleeve from turning in the direction in which the pintle screws up, but allows it to turn in the opposite direction; hence when the gate is swung in the direction in which the sleeve is stopped from turning, the pintle will screw up in the sleeve, while the sleeve remains at rest in the barrel; and if the gate is now released, it will gravitate closed, as in the preferred construction. If, however, the gate be now swung open in the opposite di.- rection, the pintle will tend to still farther screw down; but being restrained from this, both the pintle and sleeve will then rotate freely in the barrel, the action being thus the equivalent of the preferred construction. The preferred construction is, however, considered much the best, as the threads are on a large diameter-viz., on the exterior of the sleeve-whereas the bore of the sleeve and the exterior of the pintle, which are of small diameter, are left plain, which is much preferable to having the threads on the pintle, which would require that the parts be made much larger to secure strength.

Vhat I claim as my invention isl. A screw-hinge constructed with an inf termediate screw-sleeve between barrel and pintle, with engaging projections between the Sleeve and pintle at one point, so arranged that the pintle rotatively engages the sleeve when turned in one direction, but not in the other direction, substantially as and for the purpose set forth.

2. The combination, with a door or. gate adapted to swing in opposite directions, of two screw-hinges, one at top and bottom thereof, the said hinges being constructed with an intermediate screw-sleeve between pintle and barrel, with threads of opposite inclination on the sleeves of the respective hinges, and the said pintles being arranged to rotatively engage their respective sleeves in relatively reverse directions, substantially as and for the purpose set forth.

3. ln a screwhinge, the combination, with the screw-barrel f and the plain'pintle g, of the `intermediate screw-sleeve,k, having an engaging-lug, Z, to engage the pintle in one direction, substantially as herein shown and described..

4. The combination, with a door or gate and its hinge-post, of two screw-hinges formed with screw-barrelsf, plain pintles g, and intermediate screw-sleeves, 7s 7c, with engaging' lugs l l, the screw-threads on the respective hinges -being respectively right and left, and the position of the lugsl Zbeing relatively reverse, substantially as and for the purpose set forth.

. JOHN T. FOSTER. Ti tnesses: l OHAs. M. HIGGINs,

JN0.. E. GAv'IN. i

IOO

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