US1809401A - Adjustable joiner - Google Patents

Description

-June 9, 1931. I H, c, CATTELL 1,809,401

` ADJUSTABLE JoINER Fied laren 5,- 192s AINI/Elv-TOR.

S21/wlan C. @aftell- BY 7g Q @zza/2 l A TTORNEY Patented June 9, 1931 PA'TT HERMAN' C. OATTELL, OF ALLIANCE, OHIO ADJUSTABLE JOINER Application filed March 5,

This invention relates to an improvement in a tool or implement for use by carpenters or other mechanics, known as an adjustable joiner.

The purpose ot this invention is to provide an extension tool particularly useful in taking lengths and bevels to assist in litting a closure into an opening. A further object und purpose ot the invention to produce a tool which can be readily fitted into an openino' and then withdrawn, and provided with means so that it can be retracted and removed from the opening and when released will immediately assume the form in which it l5 held when in the openino.

The accompanying drawings show an em bodiment oit my invention and in these drawings-- Figure 1 is an elevation oit' the complete 29 tool.

Figure of Fi g. 1.

Figure 3 is an enlarged section taken on line B--B of Fig. 1.

Figure 4 is an enlarged section ot the adjustable spring device shown in Fig. 1.

In the construction of my device I provide preferably four telescoping numbers 1, 2, 3, and These members are preferably of round tubular form but may be square or any other convenient form. Part 1 is largest in diameter and part l is smallest. I have in mind, however, I may use a greater or smaller number of telescoping parts depend-v ing upon the length of the device required. The outer ends of parts 1 and 3 are fitted with knurled sleeves 5 and 6 which are threaded and operate on bevel threads to compress the end of the tube which is slotted, securing it in position on the part sliding within it. These knurled sleeves are for the purpose ont' approximately setting the tool in position.

Between parts 2 and 3 I provide sleeve 7 which contains coil spring 8 which travels on the smaller tube 3 and rests against bushing 9 in one end of the sleeve and against the end of tube 2 at the other.` This is arranged so that the sleeve can move freely endwise allowing the spring tok be coma section taken on line A--A 192s. serial no. 259,333.

pressed. The sleeve 7 is provided with two screws 10 and 11 threaded through the sleeve and projecting into slots 12 and 13 in the larger tube which slots are long enough to allowfor proper springaction and determine the distance which the joiner can be shortened to withdraw the tool from an opening. The bushing end'ot the sleeve has a small thumb-wheel set screw ,14 Y threaded through the sleeve? and clamps bushing 9 securing the sleeve to smaller tube 3. It will thus be seen that after the tool is set to a definite length, the operator by means of this spring joint can contract the length oi the tool for the purpose of easy removal and the spring will act to return the tool to the predetermined length when released.

. At the outer ends ot' parts 1 and l I provide metal tongues or st aight edges l5 and 16, which may be made in varying lengths and shapes to suit the class of work required. The ones which I have shown are especially adapted for cutting stair risers and aretitted up in pairs and provided with series of holes 17 into which short stud 18 may be threaded at right angles to the plane, making it possible to rest the tool by these studs 18 on the rough stair horse then hook the same over the top jointed edge ot' the riser ready to mark the length for cutting. I providethe ends of parts 1 and 4 with pressed, metal brackets 19 through which beveled headed bolt 2O is passed, being secured by thumb lever nut 21. This bevel head is counter'- sunk into the aforementioned metal tongue 15. Compression spring 22 is located within the metal bracket 19 and serves to prevent the screw 2O from dropping out in case the plumb lever nut 21 is removed from the screw.

Spring 22 abuts against nut 23 which isA threaded onto screw 20. By means ot' this arrangement the tongue may be quickly removed by partly loosening the thumb lever nut 21 allowing the head of the screw to come out of the countersunk in the tongue, then shift-ing the body of the bolt through a short slot 24Vto a hole large enough to release the bolt head.

It will thus been seen that the metal tongues sov 15 and 16 can be adjusted in parallel or otherwise for openings for shelving, stair-risers, and treads, easements, sash, counters, doors, porch columns, railings, panels, siding, and many other uses. It is especially adapted to building boX stairs, winding stairs, etc.

Having fully described my invention, what I claim as new and desire to cover by Letters Patent is:

l. A tool of the class described comprising an extension member composed of telescoping sections, a sleeve adjustably secured to one section, a bushing within the sleeve, a slot in the next larger adjoining section, a projection on the sleeve adapted to extend within the slot, a spring within the said sleeve interposed between the bushing and the end of the said adjoining section, a bracket secured to each end of said extension member and a tongue pivotally mounted on said bracket.

2. A tool of the class described comprising an extension member composed of telescoping sections, a sleeve adjustably secured to one section, a bushing within the sleeve, a slot in the next larger adjoining section, a projection on the sleeve adapted to extend within the slot, a spring within the said sleeve interposed between the bushing and the end of the said adjoining section, a bracket secured to one end of said extension member, a bolt passing through the said bracket, a tongue pivotally mounted on said bolt, a lock nut threaded on said bolt, a spring interposed between the bracket and the said locknut and a binding nut threaded on said bolt adapted to bind the tongue against movement with respect to the extension member.

In testimony whereof, I have signed this specification.

HERMAN C. CATTELL.

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