US2306483A

US2306483A - Curtain stretcher

Info

Publication number: US2306483A
Application number: US440377A
Authority: US
Inventors: Raymond A Lodge
Original assignee: Individual
Current assignee: Individual
Priority date: 1942-04-24
Filing date: 1942-04-24
Publication date: 1942-12-29
Anticipated expiration: 1959-12-29

Description

Dec. 29, 1942. R. A. LODGE v 2,306,483

CURTAIN STRETCHER Filed April 24,";1942 2 Sheets-Sheet 2 v v 1 J j? /0 o l Q 7 l0 2 Q Q l Patented Dec. 29, 1942 UNITED STATES PATENT OFFICE CURTAIN STRETCHER Raymond A. Lodge, Ileetonia, Ohio Application April 24, 1942, Serial No. 440,377

2 Claims.

simple in construction, strong, durable, highly V eflicient and reliable in use, compact and which may be manufactured at low cost.

All of the foregoing and still further objects and advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

Figure 1 is a top plan view of a curtain stretcher constructed in accordance with the present invention.

Figure 2 is a bottom plan view thereof.

Figure 3 is a vertical sectional view, taken substantially on the line 33 of Figure 1.

Figure 4 is a detail view in perspective of one of the clamp blocks.

Referring now to the drawings in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a frame which is designated generally by reference numeral l. The frame I includes a plurality of graduated pin rails 2.

Secured beneath one end portion of each of the rails 2 and extending transversely beneath the adjacent rail is a plate 3. Elongated, blocks 4 are mounted transversely on the outer end portions of the plates 3, said blocks including beveled or inclined inner marginal portions 5. Also mounted on these end portions of the rails 2 and projecting therefrom areguide plates 6 for the adjacent rails.

The outer marginal portions of the rails 2 are oppositely beveled to the portions 5 of the blocks 4, as at 1. Thus, substantially V-shaped grooves or channels are provided for the reception of V-shaped locking wedges 8 of suitable metal. Bolts 9 secure the locking wedges 8 in position, said bolts passing downwardly between the It is thought that the manner in which the invention functions will be readily apparent from a consideration of the foregoing. Briefly, with the locking wedges 8 loosened, the rails 2 are free to be adjusted relative to each other for increasing or decreasing the side of the frame I as desired. When this is done, the rails 2 slide transversely across the plates 3 between the blocks 4 and the opposed ends of the adjacent rails. When the desired adjustment has been made, the wing nuts Ill are tightened for drawing the locking wedges 8 downwardly through the medium of the bolts 9 for frictionally clamp ing the rails 2 in adjusted position relative to each other. The construction and arrangement is such that the frame I may be expeditiously assembled and disassembled.

It is believed that the many advantages of a curtain stretcher constructed in accordance with the present invention will be readily understood, and although a preferred embodiment of the device is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts maybe resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

1. A curtain stretcher comprising a frame including a plurality f rails extending at right angles to each other, plates mounted beneath one end portion of the rails and extending trans- V versely beneath the adjacent rails, blocks mounted on said plates, the adjacent portions of the blocks and the rails being oppositely beveled,

to each other, a platemounted on one end of one of said rails and projecting longitudinally blocks 4 and the adjacent rails 2 and passing through openings in the plates 3. Wing nuts III are provided on the lower end portions of the bolts 9.

therefrom, said plate extending transversely beneath the other rail, a block on the plate outwardly of said other rail, a guide on said one end of said one rail extending over said other rail, a substantially V-shaped wedge engaged between the block and said other rail, and means for drawing said wedge between the block and said other rail for frictionally securing the rails together, the adjacent portions of theblock and said other rail being oppositely beveled'for the reception of the wedge.

RAYMOND AQLODGE.