US1021579A - Adjustable mounted roller. - Google Patents

Description

-T.-W. DOOLITTLE, G. S. WINSOR & G. VERGASON.

ADJUSTABLE MOUNTED RQLLER. AIfPLIOATION FILED D3052, 1911.

1,02 1 ,5'79, Patented Mar. 26,1912.

WITNESSES 1%1: T0R5 COLUMBIA PLANDGRAPH IO-WASHINGTON n c UNITED STATES PATENT OFFICE.

TRACY W. DOOLITTLE, CLIFFORD S. WINSOR, AND CHARLES VERGASON, 0F BINGHAMTON', NEW YORK.

ADJUSTABLE MOUNTED ROLLER.

Specification of Letters ZPatent.

Patented Mar. 26, 1912.

To all whom it may concern."

Be it known that we, TRACY W. DOOLIT- TLE, CLIFFORD S. WVINsoR, and CHARLES VER- GASON, citizens of the United States, residing at Binghamt-on, in the county of Broome andSt-ate of New York, have invented certain new and useful Improvements in Adjust-able Mounted Rollers, of which the following is a specification.

Our invention relates to improvements in adjustable mounted rollers for door ways, and has for its object a light, strong and collapsible roller device adjustable to different widths of doors, to be clamped in position in the doorway for the purpose of conveying lumber and other heavy commodities and materials through door ways or openings of cars or buildings, and capable of being clamped in position in locked formation at any given height from the floor. Also capable of being clamped against any kind of door frame surface, whether round or flat or of wood or metal; and easily removed.

WVith these objects in view our invention consists of certain novel features of construction and arrangement of parts as will be hereinafter fully described and pointed out in the claims, reference being had to the accompanying drawing, in which Figure 1 is a front view of our device in a locked position clamped in a doorway of a car. Fig. 2 is a front view of a detached part of our device. Fig. 3 is a front View of a part of our device in a partially locked position. Fig. 4 is a sectional plan view of a part of our device and Fig. 5 is an end view of a detached part of our device.

The same reference characters denote like parts in each of the several figures of the drawings.

In carrying out our invention, we provide two hinged perforated bars, A and B, between which passes a nut bolt, 2. Each bar has extending from its rear end on the upper side, a curved lug 3 which when the bars are in locked hinged position hooks over the opposite bar. The outward end of each bar extends into a horizontal plate, horizontal to the sides of the bars, A and B. Through the bars are a series of perforations, preferably round, 5 and 6, with a central perforation, 7. These perforations are so distant from each other that the bars may have an adjustment to each other as line as inch adjustment between them. Through the surface of the flattened outer ends, constructed by a half turn of the metal bars, A and B, extend the bolts 8 and 8. Turning on plate extension 4 and p-ivotally mounted thereon are the clamping members D and D respectively, having the projection flat faced lugs D and D terminating in the circular roller shaped projection 10, 10, having a corrugated surface adapted to engage the surface of the door post and grip it and hold the locked roller device firmly in place in the door. Mounted on the hinged bars A and B are the slidingly mounted journal supports, C and C. In these journal supports are formed the slot E. When thus slidably mounted on the bars A and B the roller F, having the journals 9 and 9, is dropped into place in the bearings 10' and 10 In operation we place the bars with nut bolt 2 so placed in the perforations as to enable the curved swivel ends of the bars to be firmly crowded against the sides of the door, and then the hinged bar support is crowded down into place, the hooked clamps 3, 3 clamping over the bars A and B respectively, the journal supports 0 and C being mounted on the bars, the cam G mounted in the slot of the support is crowded down into frictional contact against the bar and thus the support is firmly held to receive the roller. The roller being in place in the supports on the locked bars, the device is now clamped into place ready for use.

Having thus described our invention, what we claim as new and for which we desire Letters Patent is as follows:

1. In an adjustable mounted roller, two hinged perforated bars, a nut bolt passing between the same, curved lugs projecting from the upper side of the bars, bent in opposite directions, each capable of hooking over the opposite bar, a plate extension from the outer end of each bar horizontal to the sides of the bar, there being a graduated series of perforations through the bars for receiving said nut bolt, clamping members pivot-ally mounted on said extension plates, and adapted to engage the surface of a door post, slotted journal supports having bearings therein slidingly mounted on said bars, clamping means mounted in said supports,

a journaled roller adapted to and mounted" on said bearings.

2. In an adjustable mounted roller for doorways, tWo perforated bars hinged upon a nut bolt passing between them, there being a series of perforations through said bars, a curved lug projecting from the upper side of each of said bars, each lug bent in opposite directions, and adapted to hook over the opposite bar, a plate extension from the outer end of each bar, horizontal to the sides of the bar, clamping members pivotally mounted on said extension plates, and adapted to engage the surface of a door post; slotted journal supports having bearings therein, slidingly mounted on said bars; means for clamping said supports to said bars at any given point, a journaled roller 15 adapted to and mounted in said bearings.

In testimony whereof We have mixed our signatures in presence of tWo Witnesses.

TRACY W. DOOLITTLE. CLIFFORD S. WINSOR. CHARLES VERGASON. Witnesses:

E. M. HAUREY, S. A. VALENTINE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G.

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