US442950A

US442950A - Door-hanger

Info

Publication number: US442950A
Authority: US
Publication date: 1890-12-16
Anticipated expiration: 1907-12-16

Description

(No Medef.)

C. W. BULLARD. DOOR HANGER.

No. 442,950. PatentedDec. 16,1890.

forzzety.

UNITED STATES PATENT OEEICE.

CHARLES lV. BULLARD, OF CHICAGO, ILLINOIS.

DOOR-HANGER.

SPECIFICATION forming part of Letters Patent No. 442,950, dated December 16, 1890. Application tiled July 16, 1890. Serial No. 358,953- (No model.)

T0 @ZZ whom it may concern:

Beit known that I, CHARLES W. BULLARD, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois,l1ave invented certainnew and useful Improvements in Door-Hangers; and I do hereby declare the following to be a full, clear, and exact description'of the invention, such as Will enable others skilled in the art to which it appertains "to make and use the same.

This invention relates to that type of doorhan gers in which provision is made for reducing the friction of the axles or trunnions of the-track wheel or wheels.

The object of the present invention is to provide a novel arrangement of parts for attaining in a simple, cheap, and eiective manner a nearlyfrictionless bearing for the axle or trunnions of the trackwheel of a doorhanger.

A further object is to afford a simple and durable means of adjustment for the trackwheel with relation to the top of the door, both in a vertical and lateral direction, to enable the adj nstment of the door to its proper position in a quick and convenient manner.

I attain such objects by the construction and arrangement of parts illustrated in the accompanying drawings, in which- Figure l is a side elevation ot a door-han ger embodying my present improvements; and Fig. 2, an end elevation of thesame, partly sectioni'zed.

Similar numerals of reference indicate like parts in both views.

In the present type of anti-t`riction doorhangers as heretofore constructed the upper or anti-friction wheels were invariably connected together by a cross shaft or axle, which was necessarily located above the crown or rim of the lower or track wheel. In consequence thereof: the diameter of the trackwheel was necessarily restricted, owing to the fact that in a majority of cases the overheadroom above the track is so limited in height as to preclude the use of a hanger having an excessive projection above the track. In order to avoid any such excessive projection above the track and at the same time admit of the use of a track-wheel of a large diameter, the present invention involves the follow ing novel arrangement of parts.

Referring to the drawings, l :represents the track-roller, suitably grooved around its periphery to fit and ride upon the usual track or rail, and 2 the yoke-shaped suspension-strap between the main and overhanging

members

3 and 4, of which the track-roller l is located with its aule or trunnions 5 arranged to play loosely in a vertical direction in vertically-arranged elongated slots Gin said members, as illustrated in Figs. l and 2.

In the present invention the axles or trunnions 5 are formed of some length, so as to project out past the faces of the

members

3 and 4 to rest under and have bearingagainst the periphery of the comparatively small bearing or friction-reducing rollers 7, that are arranged on stud pins or bolts 8 on the outer faces of the members 3 and Vith this construction the sizeof the friction-reducir) g rollers 7 can be brought down to a limit that does not extend the head of the hanger too far up in a vertical direction, and (what is of equal importance) brings the bearings for the axle ot the track-wheel such a distance on either side of the track and track-Wheel that a tendency to a tiltingof the track-wheel is entirely prevented, and in consequence the movement of the hanger is rendered smooth and uniform.

For parlordoor and like uses the yoke-strap 2 will be provided near its lower end with a pair ot headed guide studs or bolts 9, that have movement in a pair of inclined slots l0 in the vertically-extending web or iiange ll on the base-plate l2, that is connected to the top of the sliding door. The inclined slots lO receive the Shanks of the bolts 9, while the heads of the same act to hold the parts together, and in order to make the parts readily attachable and detachable I form the lower end of said slots with an enlarged portion 13, that admits of the passage ot the heads of the bolts 9.

The adjustment ot the parts is eliected by a temper or adjusting screw li, having bearing in the fixed lug 15 on the base-plate l2 of the hanger, the screwthreaded shank of said screw working in a scrcw-threaded orifice in the head ot one'of the bolts 9, as clearly indicated in Fig. l. inverted L form, as shown, and to enable it to be adjusted in a transverse direction its horizontal portion or plate is provided with The base-plate l2 is of au ICO transverselyextending` elongated slots lo', through which pass the headed screws 17, that screw into a door-plate 1S, iixedly attached to the top of the door, as shown.

I am aware that prior to my invention antifrietion devices have been constructed with a pair of connected superimposed anti-friction rollers that formed a bearing for the axle of the lower or track wheel. In all such prior constructions an excessive projection ot' the hanger-frame above the track was necessary. I therefore make no claim to such construction, broadly; but,

Having` thus fully described my said invention, what I claim as new, and desire lo secure by Letters Iatent, is-

l. A door-hanger comprising, in combination, a yole-frame havingv vertical elongated slots in main and overhangiirr,r members, a track-wheel provided with elongated axles or trunnious that project through said elongated slots, and a pair of small and independent friction-reducing rollers arranged on independent studs on the outer sides of the strap members and adapted to form bearings for the outer ends of the axle ortrunnions of the track-wheel, essentially as set i'orth.

:2. A door-hanger comprising;7 in combination7 a track-wheel, a yoke or hanger strap having a pair of headed bolts near its lower end, one of which is formed with a screwthreaded orifice, a baseplate or member llaving,r a vertical web provided with a pair of inclined slots, and an adj usting-screw journaled in the base-plate and passing through the screw-threaded orice in one of the headed bolts, essentially as set forth.

3. A door-hanger comprising', in combination, a track-wheel, a yoke or hanger strap having` a pair of headed bolts near its lower end, one of which is formed with a screwthreaded oriee, a base-plate or member having' a vertical web provided with a pair of inclined slots, and a horizontal plate formed with transversely-extending slots, an adjustingscrew journaled in the base-plate and passing' through the screw-threaded orieein one of the headed bolts, a door-plate attached to the top ot' the door, and headed bolts passing through the transverse slots in the baseplate and screwing` into the door\plate, essentially as set forth. v

In testimony whereof I at'iix my signature in presence of two witnesses.

CHARLES \V. BULTAARD. 1ifl'itnesses:

ROBERT Reims, JAMns ll. Gol-mear.