US 3356392 A
Description (OCR text may contain errors)
Dec. 5, 1967 L, BLUM ETAL 3,356,392
ORNAMENTAL RAILING TERMINAL Filed Dec. 13, 1965 2 Sheets-Sheet 1 INVENTORS.
L. BLUM ETAL Dec. 5, 1967 ORNAMENTAL RAILING TERMINAL 2 Sheets-Sheet 2 Filed Dec. 13, 1965 INVENTORS. 01113 5111177 1. By Wil/l//IJ/YalyqJz: 62d) f @A A TTU/WYE YS.
United States Patent i 3,356,392 CRNAMENTAL RAILING TERMINAL Louis Blum and William J. Horgan, Jr., Pittsburgh, Pa., assignors to Blumcraft of Pittsburgh, Pittsburgh, Pa.,
a firm Filed Dec. 13, 1965, Ser. No. 513,277 3 Claims. (Cl. 287-20324) This invention relates to a terminal piece for an orna mental handrail and more particularly to a movable terminal piece for wooden handrailings.
Wooden handrailings have been known for many years in the art of ornamental railings. More recently, however, wood handrails have become useful in specialized rai.- ings of a very attractive ornamental character. It is highly desirable in such railings that the terminal portions thereof be capped with a metal terminal piece for two reasons. First, to provide protection for the end of the handrailing and toprovide a rigid durable cover for the grain of the wood; and, secondly, to highlight and ornament the handrailing itself. Both of these objectives are achieved by ornamental metal terminal pieces.
One of the problems that arises from the combination of wood and metal in handrailings is the different rate of expansion of these pieces under certain conditions. For instance, the metal tends to expand a greater amount under heat, and under certain conditions of moisture the wood tends to expand. The most serious and by far the most common problem is that which results from the tendency of the wood to shrink slightly over a period of time due to dehydration. This tends to leave a gap between the metal terminal piece and the wooden handrailing.
It is a principal object of this invention to provide a decorative metal end piece for a wooden handrail which will adhere to the handrail even under conditions oi shrinkage of the wooden portion of the handrail.
It is also an object of this invention to provide a -metal terminal portion for a wooden ornamental handrailing which will permit the wooden portion of the bandi-ailing to expand without excessive compression of the wood.
The foregoing objects and other advantages are obtained by means of the structure which is illustrated in the drawings and described in the following specification in which:
FIG. 1 is a partial perspective view showing a post and handrailing connection with a metal terminal piece on a wooden handrailing;
FIG. 2 is a partial plan View of the terminal portion of the handrailing of FIG. l taken from the position oi the line II-II of FIG. l;
FIG. 3 is a sectional view along the line III-III of FIG. 2;
FIG. 4 is a sectional View along the line IV-IV of FIG. 3;
FIG. 5 is a partial exploded view of the metal terminal piece and handrailing made in accordance with the invention illustrating the working parts;
FIG. 6 is a view similar to FIG. 1 showing another embodiment of the invention.
FIG. 7 is a partial plan View of the end portion of the hand railing of FIG. 6 taken from the line VII-VI] of FIG. 6;
FIG. 8 is a sectional view taken along the line VIII-VIII of FIG. 7;
FIG. 9 is a sectional view taken along the line IX-IX of FIG. 8; and
FIG. 10 is a partial exploded view illustrating the metal terminal piece of FIG. 6 and a portion of the handrail illustrating the working parts thereof.
In FIG. 1 the post 10 is mounted thereon a handrailing 11 with a metal terminal piece 12, The handrailing is connected to the post by means of connecting bracket 13.
3,355,392 Patented Dec. 5, 1967 ICC As shown in FIG. 4 the handrail comprises a wooden portion 14 and a metal portion 15. The terminal piece is connected to the handrail 11 through the metallic portion 15. The metallic portion 15 of the handrail 11 is connected to the wooden part by means of screw 16. The
' metal portion 15 has an undercut T-slot located centrally thereof and running longitudinally of the handrailing.
The T-slot has a head portion 17 and a stem portion 18. The metallic member 15 is also provided with spaced openings 19 as shown in FIG. 5.
The terminal piece 12 is shaped to correspond to the cross-section of the handrail 11. It is provided with two dowel pins 20 adapted to fit the openings 19 in the metallic portion 15 of handrail 11. There is also a threaded hole 21 tapped into the inner face of the terminal piece 12. The connection between the terminal piece 12 and the handrail 11 effected by a at member 22 which fits within the head portion 17 of the T-slot in the handrail and is rigidly aixed thereto by means of the screws 23 and by a spacer member 24 connected thereto. With the fiat member 22 and the spacer block 24 in the position as illustrated in FIG. 3 tension bolt 25 is inserted through the opening 26 in spacer block 24 and into the threaded opening 21 in the terminal piece 12. The terminal piece 12 is maintained against the spacer block 24 by'virtue of the coil spring 27 disposed about the shaft of screw 25. The tension of the spring 27 is varied by adjusting the position of the bolt 25 in the threaded opening 21. The tension may be changed by rotating the bolt 25 in position as shown in FIG. 3.
In actual use, the handrailing is assembled with the terminal piece 12 in place. The tension is adjusted on the coil screw 27 by rotating bolt 25. The tension may be adjusted depending upon the atmospheric conditions at the situs of the handrailing. If there are any changes in these conditions or if there is any unusual shrinkage or expansion the tension on the coil spring 27 may be changed to meet the changed conditions.
In FIG. 6 the post 30 supports handrail 31 having metal terminal piece 32 by means of connecting bracket 33, In this embodiment of the invention the handrail 31 comprises a wooden exterior 34 bonded to a metal frame ccmprising two interlocked pieces 35 and 36. The metal pieces 35 and 36 are joined by means of bolt 37 and form a rectangular elongated opening through the handrail 31. The metal terminal piece 32 is provided with dowel pins 40 which t in openings 39 in the wooden portions of the handrail 31. A spacing block 44 is inserted in the rectangular opening in the metallic portion of the handrail 31 and is connected to the terminal piece 32 by means of threaded bolts 45 which pass through the openings 45 in spacer block 44 and into threaded openings 41 tapped in the inner face of the terminal piece 42. The terminal piece 42 is held in position against the end of the handrail 31 by means of the bolts 45 acting under tension of the coil spring 47 and the spacer block 44 is in turn rigidly held in place within the opening in the handrail 41 by means of the set screw 50 which passes through threaded opening 51 of the handrail 31. An ornamental cap 53 held in place by a set screw 54 is provided to cover the end of the handrail 31.
When the terminal piece 42 is in place held under the tension of the coil spring 47 it is permitted to move outwardly in the event of expansion of the wooden portion of the handrail 31.
What is claimed is:
1. A terminal piece for an ornamental handrail c-omprising a receiving member atixed to the handrail and forming a part thereof, said member including channel means for receiving a spacer block, an end cap shaped to conform to the end of said handrail, a spacer block removably mounted in said channel means having an elongated portion substantially parallel thereto, and having 3 4 an opening extending substantially parallel to said channel by the fact that the channel means comprises an enclosed therethrough, -bolt means passing through said opening polygonal channel. and threadably engaging said end cap and spring means disposed between said bolt means and the elongated por- References Cited tion of the spacer block surrounding said opening urging 5 UNITED STATES PATENTS said end cap longitudinally into flush engagement with the end of said handrail. l
2. The terminal piece of claim 1 further characterized n by the fact that the channel means comprises a T-shaped EDWARD C- ALLEN Pnmary Examme" Channel- 10 W. L. SHEDD,AssstantExamner.
3. The terminal piece of claim 1 further characterized 2,873,095 2/1959 Blum 256-65