US1236209A - Column. - Google Patents

Description

H'. C.- PFAFF.

COLUMN.

APPLICATION FILED IAN-4,19I6.

Patented Aug. 7, 1917.

2 SHEETSSHEET I ATTOREVS HENRY C. PFAFF, OF NEWARK, NEW JERSEY, ASSIGNOR TO PFAFF & KENDALL, A CORPORATION OF NEXV JERSEY.

coLUMn.

Specification of Letters Patent.

Patented An 7, 1191 1.

Application filed January 4, 1916. Serial No. 70,088.

' Newark, in the county of Essex and State of New J ersey, have invented certain new and useful Improvements in Columns; and I do hereby declare the following to be a full, clear, and exact description of the inventio-n, such as will enable others skilled V in the art to which it appertains to make and use the same, reference being had to the accompanying drawings and to characters of reference marked thereon, which form a part of this specification.

This invention has reference generally, to-

improvements in composite columns for use in structural work; and, the present invention relates, more particularly, to a novel construction of column, combining with a hollow or tubular main casing adapted to receive a filling, such as concrete or a similar mixture, a cap, or baseelement, formed with a member extending into and arranged within said main casing at either end thereof, said member of the cap or base-element being provided with a means of closure for preventing the filling within the said main casing extending into the hollow part of the said cap or base-element, and the said cap or base-element being provided with a suit able retaining means adapted to be brought into frictional holding engagement with a portion of the main casing of the column and with the cap or with the base-element, so as to securely hold the cap and column, or the baseelement and column, together.

The invention has for its principal object to provide a novel and simple, as well as efliciently constructed composite column of the general character hereinafter more particularly set forth, combining with a filled main casing, a novel cap or base provided with a closure adapted to be arranged within the filled casing for preventing the filling from extending into the interior of the cap or base, and at the same time providing between the interior of the main cas ing and a portion or portions of the cap or base-element, a retaining or locking means,

acting by friction, to permanently secure or lock the cap or base and the main casing of the column together.

Other objects of the present invention not at this time more particularly enumerated will be clearly understood from the following detailed description of the present lnvention.

. WVith the various objects of the present invention in view, the said invention consists, primarily, in the novel column for structural work hereinafter set forth; and, the invention consists, furthermore, in the novel arrangements and combinations of the various devices and parts, as well as in the details of the construction of the said parts, all of which will be more fully described in the following specification and then finally embodied in the clauses of the claim which are appended to and which form an essential part of the said specification.

The invention is illustrated in the acco1npanying drawings, in which Figure 1 is an elevation of a fragmentary portion of a column and cap, representing one embodiment of the principles of the present invention of the combined'column and cap, Fig. 2 is a detail vertical section of a portion of the column and cap, said section being represented as taken in a vertical plane in line -2-2 in said Fig. 1; and Fig. 3 is a horizontal sectional representation taken on line 3-3 in Fig. 2, said Figs. 2 and 3 being made on enlarged scale.

Fig. 4 is a transverse vertical sectional representation of a portion of a column and a base-element therefor made according to and embodying the principles of the present invention.

Figs. 5 and 6 are transverse sectional representations of fragmentary portions of a column and cap, said views showing still other modifications of the principles of the present invention.

Similar characters of reference are em ployed in all of the said above described views to indicate corresponding parts.

Referring now to the several figures of the drawings, the reference-character 1 indicates an outer tubular casing or shell of any desirable cross-section and length, upon the upper end of which is mounted a column-cap, the same comprising in general a main tubular body or element, as 2, preferably of the same general cross-section as that of the said main tubular shell or casing. The said tubular body or element 2 is formed with a reduced or diminished portion 3, providing with the said body 2 an external annular shoulder or seat 4;. Connected with the upper portion of the said body or element 2 is a. crown-plate 5, and extending from the said body or element 2 are beamflanges, as 6, to which may be suitably secured the usual beams. The said tubular body or element 2 may also be provided with the usual reinforcing or strengthening brackets 7, substantially as illustrated in Fig. 1 of the drawings.

As shown in Figs. 2, and (S of the drawings, the reduced or diminished portion of the body or element 2 is made with a closing member, as 8, forming an integral part of the said portion 3. Extending upwardly from said closing member 8 and integrally connected with the wall of the said reduced or diminished portion 3 are wall- like mem bers 9, 10 and 11 which provide marginal chambers 12, preferably closed at the top, as at 13, and open, as at 14, as will be seen from an inspection of Figs. 2 and 3 of the drawings. As shown in said F 2 of the drawings, the inner surface 15 of the walllik'e member 9 tapers in a direction from the upper part to the lower part of said walllike members.

In assembling the said main column-casing or shell 1 andv the column-(mp, the reduced or diminished portion 3 of the body or element 2 is inserted in the upper open end of the said casing or shell 1, until its seat +1 rests directly upon the terminal ,portion of the said casing or shell, a key or wedge-shaped retaining member or element, as 16, having first been placed in each chamber 12, through the open part 14. Each retaining member or element 16 is made with the straight edge-portion 17 adapted to register with the inner surface of the wallportion of the main outer casing or shell 1, and with an inclined edge-portion, as 18, adapted to register with correspondingly inclined or tapering surface-portion 15 of the wall-like member 9, substantially as shown in said Fig, 2 of the drawings. Each key or wedgeshaped retaining member or element 16 is also provided with a downwardly projecting shank or stem 19, each shank or stem having a screw threaded portion for the re ception thereon of a nut 20. In those portions of the previously-mentioned closing member 8, located beneath the said cham bers 12 are perforations or holes 21 into which the said screw-threaded shanks or stems 19 extend and project below the said member 8, as shown, and for the reception thereon of the said nuts 20.

From an inspection of said Fi 2 it will be clearly understood that when the said nuts 20 are screwed up, the column-cap and end-portion of the main shell or casing will. be brought into their tightened relation, securely against displacement or accidental separation. I

Referring now to Fig. 4. of the drawings, in which is shown a base-member or element for the column-casing or shell 1, the reference-character 22 indicates a suitable baseplate provided with an upwardly extending tubular body or element 23 formed with a reduced or diminished portion 24:, forming with the said body 23 an external annular shoulder or seat 25. The said tubular body or element 23 may be formed with the reinforcing or strengthening brackets 26 which are connected with the base-plate 22, and the reduced or diminished portion 2 1 of the said body or element 23 is made with a closing member 27, forming an integral part of the said portion 2 1.

Extending downwardly from the said closing member 26 and integrally connected with the wall of the said reduced or diminished. portion 24 are wall-like members 28, similar in arrangement to the previously- ,mentioned wall- like members 9, 10 and 11, which provide marginal chambers 29, preferably closed at the bottom, as at 30, and open at one-side, as at 31, and at the top, as at As shown in said Fig. 4, the inner surface of the wall-like member 29 opposite the open side 31 inclines or tapers substantially in the manner shown.

In assembling the said column-casing or shell 1 and the base-member or element, the reduced or diminished portion 24 of the tubular body or element 23 is inserted in the lower open end of the said casing or shell 1, until its seat rests directly upon the terminal portion of the said shell or casing, a key or wedgeshaped retaining member or element, as 3%, having first been placed in each chamber 29. Each retaining member or element 3 1 is made with the straight edgeportion 35 adapted to register with the inner surface of the wall-portion of the main outer casing or shell 1, and with an inclined edge-portion, as 36,;ulapted to register with the correspondingly. inclined or tapering surface-portion 33 of the wall-like member 28, substantially as shown in said Fig. 1 of the drawings. Each key or wedge-shaped retaining member-or element 3-1- is also provided with a downwardly projecting stem or shank 37, extending through a hole or opening 38 in each bottom 30, and said stems or shanks being of such lengths that they can be made to extend into and from suitable holes or openings 39 in the base memher or element 22, as shown, and each pro jecting shank-portion being made screwthreaded for the reception thereon of a nut 40.

From an inspection of said Fig. 4: it will be evident, that when the said nuts 10 are screwed up, the said base-element or member and lower end-portion of the main shell or casing will be brought into their tightened relation, securely against displacement or accidental separation.

The interior of the said main casing or shell, 1, located between the closing members or plates 8 and 27 is filled, in any suitable manner, with a reinforcing filling 4:1, in the form of concrete or other suitable mixture, which subsequently hardens within the said casing or shell 1, and thereby provides a rigid, strong and fire-proof reinforced column for use in structural work, as will be clearly evident.

One means for inserting the filling 4:1 in place within the shell or casing 1 is to provide the closing member or plate 8 of the column-cap with a screw-threaded hole 12 of any suitable size, for passing or flowing the reinforcing filling through the said closing member or plate 8, after which the said opening or hole 42 is closed by means of a suitable screw-plug, as 413.

In lieu of the screw-threaded hole 42 and screw-plug 43, the closing member or plate 8 may be made with a tapered hole or opening 44 for filling purposes, into which can be tightly driven a tapered plug, as 45, as shown in Figs. 5 and 6 of the drawings.

As will be seen from an inspection of Fig.

a, the closing member or plate 27 may also be provided with a filling hole or opening, as 46, adapted to be closed by means of a hung or plug 47.

Other forms of fastening or retaining devices are shown in Figs; 5 and'6 of the drawmgs.

Thus, in Fig. 5, the' closing plate or member S and the reduced or diminished portion of the column-cap are provided with the wall-like portions 48 and 19, providing keyreceiving chambers 50, open at the top, .as at 51, and at one side, as at 52. Within each chamber 50 is an arrangement of suitably tapered keys, as 53, 54 and 55, the key 55 being adapted to be firmly driven down between the binding keys 53 and 54:, whereby the column-cap and the main shell or casing 1 will be securely held in their assembled relation, as will be clearly understood.

In the modification represented in Fig. 6 of the drawings, the closing plate or member 8 and the reduced or diminished portion of the column-cap are provided with the wall-like portions 56 and 57 and closed top 58 providing marginal receiving chambers 59. One of'said wall-like portions, as 56, has a tapering binding surface-portion 60. lhe main shell or casing 1 is also formed with a tapering binding surface-portion 61, extending into the side-opening 62 of the chamber 59, and located opposite the tapering surface-portion 60.

Vithin each chamber 59 is an expansion device, as 63, of any suitable and well known construction, provided with an operating bolt 6 1 having a nut-shaped head, as 65, extending into an opening 66 in the closing member or plate 27 for engagement therewith of a suitable Wrench. A plate 67 within the chamber 59, into which the screwthreaded end-portion of the said bolt (it screws;,when the head is operated, prevents turning of the expansion device within the chamber, while bringing the friction cones of the device into positive holding or retaining engagement with the tapering binding surface- portions 60 and 61, as will be clearly understood from an inspection of said Fig. 6, so as to securely hold the columncap in its position upon the end of the column-casing or shell 1.

From the foregoing description of my present invention it will be clearly seen that a simply constructed and effectively and easily operated mechanical binding means is provided which securely retains the columncap or base-member by friction in their engaged relation with the respective end-portions of the main shell or casing 1 of the column,

I am aware, that changes may be made in the general arrangements and combinations of the various devices and parts, as well as in the details of the construction of the said parts and in the general conformation of the same, without departing from the scope of the present invention as set forth in the fore- 9 going speclfication, and as defined 1n the clauses of the claim which are appended to and which form a part of the said specification. Hence, I do not limit my present invention to the exact arrangements and combinations of the said devices and parts as described in the said specification, nor do I confine myself to the exact details of the construction of the said parts, as illustrated in the accompanying drawings.

. I claim 1. A column comprising a casing and a filling therein, combined with a hollow element in the form of a cap or base for the column, said hollow element being provided with a closing member, wall-members extending from said. closing member, one of said wall-members having a tapering surface, a wedge-shaped retaining device, said device having a portion in engagement with the tapering surface of said wall-member, and means connected with said wedgeshaped retaining device for bringing said device into frictional binding engagement with said tapering surface and the oppositely located surface-portion of said column for securing said elements in assembled relation.

2. A column comprising a casing and a filling therein, combined with a hollow element in the form of a cap or base for the column, said hollow element having a reduced portion fitted into said casing, the reduced portion of said hollow element being formed with a means of closure also sion of the filling within said casing into within said casing to prevent the eXtensaid hollow element, allanembers extending from said means of closure, one of said wall-inen'ibers having a tapering surface, a wedgeshaped retaining device, said device having a portion in engagement with the tapering surface of said wall-member, and means connected with said wedge-shaped retaining device for bringing said device into frictional binding engagement with said tapering surface and the oppositely located surface-portion of said column for securing said elements in assembled relation.

3. A column comprising a casing and a filling therein, combined with a hollow element in the form of a cap or base for the column, said hollow element having a reduced portion fitted into said casing, said reduced port-ion having a platelike means of closure forming an integral part of said reduced portion also within said casing, to prevent the extension of the filling within said casing into the said hollow element, the said plate-like means of closure being formed with wall-members, one of said wallmembers having a tapering surface, said wall-members providing a receiving chamher, ,a wedge-shaped retaining device within said chamber, said device having a portion in engagement with the tapering surface of said wall-member, and means connected with said wedge-shaped retaining device for securing said elements in assembled relation.

4-. A column comprising a casing and a filling therein, combined with a hollow element in the form of a cap or base for the column, said hollow element having a reduced portion fitted into said casing, said re duced portion having a plate-like means of closure forming an integral part of said re duced portion also within said casing, to

prevent the extension of the filling Within said casing into the said hollow element,

her, and means connected with said wedgesl-iaped retaining device for bringing said casing and one of said Willi-ilkG portions for securing said elements in assembled relation.

A column comprising a casing and a filling therein, combined with a hollow element in the form of :a cap or base for the column, said hollow element having a reduced iportion filled into said casing, said reduced portion having a plate-like means of closure forming an integral ,part of said reduced portion also within said casing, to prevent the extension of the filling within said easing into the said hollow element, wall-like portions connected with said platelike means of closure, said Wall-like portions forming a receiving chamber, and a platelike meansot closure being provided directly beneath said chamber witha hole, a wedges'haped retaining element within said chamber, a screw threaded shank extending from said wedge-shaped retaining element into and through the hole in said ,yplate-like means of closure, and a nut upon said shank for bringing said wedge-shaped retaining element into frictional engagement with a portion of said casing and one of said wall-like portions forsecuring said elements in assembled relation.

In testimony, that I claim the invention set forth above I have hereunto set my hand this 80th day of December, 1915.

- HENRY C. PFAFF. lVitnesses:

FREDK C. FRA-E'NTZEL, FREDK H. W. FRAENTZEL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. "0.

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