US2842414A - Stand for power sewing machine table - Google Patents

Description

July s, 1958 r S. S. WOLFF STAND FOR POWER SEWING MACHINE TABLE Filed June 9. 1954 INVENTOR.

5mm: L 5. W0 LFF llTTORNE Y United States, Patent Office Patented July 8, 1958 STAND Eon POWER SEWING MACHINE TABLE Application June 9, 1954, Serial No. 435,527

1 Claim. (Cl. 311-39) This invention relates generally to table supports and is concerned more particularly with a type thereof for tables which carry motor-operated utilities such as sewing machines.

A principal object of the present invention is to provide such a table support characterized by members for mounting utility operating attachments for positional adjustment lengthwise of the table, and additionally by means for positionally adjusting the aforementioned members relative to one another horizontally fore and aft and vertically.

Other objects of the present invention will appear more fully hereinafter, it being understood that the invention consists substantially in the combination, construction, location and relative arrangement of parts, all as described more fully hereinafter, as shown in the accompanying drawings and as finally pointed out in the appended claim.

In the accompanying drawings:

Figure 1 is a perspective view of a table support embodying the present invention, the table top being shown in phantom;

Figure 2 is a rear perspective view looking at one end of the table;

Figure 3 is a vertical section through an end frame showing the frame sections disassembled;

Figure 4 is the same as Figure 3 but shows the frame sections assembled and the upper frame section slightly modified;

Figure 5- is a horizontal section as indicated by lines 5-5 in Figures 1 and 4.

The table support embodying the present invention is a rigid unitary open frame assembly comprising a pair of bracingly interconnected opposite end frames 1d and 11.

The construction and operation of end frame 19 will now I be described, and it will be understood that the construction and operation of end frame 11 is identical to that of end frame with the exception that end frame 11 is assembled opposite hand to end frame 10.

i The end. frame 10 is provided with a lower section 12 at thefoo't of which there'is a s'ole plate in the form of a piece of flat stock 13, the opposite end portions 13-13 of the latter being engaged with the floor, and the intermediate portion 13 being raised slightly thereabove. At the rearof the frame section 12 there is an upright in the form of a piece of channel stock 14 the lower terminal of which rests upon the underlying floor engaging portion of the sole plate 13, and the opposite side flanges 14 of which present forwardly. At the front of the frame section 12 there is an upright in the form of a length of channel stock 15 the lower terminal of which rests upon the underlying floor engaging portion of the sole plate 13, and the opposite side flanges of which present rearwardly. The upper end portion 150 of the upright 15 is rearwardly offset relative to the lower end portion thereof, being joined thereto by a curved intermediate portion 15b. Extending from the front to the rear of the frame section 12 over the sole plate 13 there is a foot tie member in the form of a length of angle stock 16 the opposite end portions of which are fitted respectively between the flanges of the uprights 14 and 15, one leg 16 of the foot tie member 16 being thereby disposed in a horizontal plane vertically spaced from the sole plate 13 to form therewith an open channel. It will be understood that the sole plate 13, the rear and front uprights 14 and 15, and the foot tie member 16 are rigidly secured together, as by welding.

The end frame 10 is additionally provided with an upper section 17 at the top of which there is a head tie member in the form of a length of channel stock 18 the opposite side flanges 18a of which present downwardly. At the rear of the frame section 17 there is an upright in the form of a length of channel stock 19 the upper end portion of which is fitted between the flanges of the head tie member 18, and the opposite side flanges 19a of which present forwardly. At the front of the frame section 17 there is an upright in the form of a length of channel stock 20 the upper end portion of which is fitted between the flanges of head tie member 18, and the opposite side flanges of which present rearwardly. The lower end portion 20 of the upright 26 is rearwardly offset relative to the upper end portion thereof, being joined thereto by a curved intermediate portion 20". Extending horizontally intermediate the top and bottom of the frame section 17 there is a tie member 21 the opposite end portions of which are fitted respectively between the flanges of the uprights 19 and 20. It will be understood that the head and intermediate tie members 18 and 21, and the rear and front uprights 19 and 20 are rigidly secured together, as by welding.

When the frame sections 12 and 17 are assembled to form the end frame 10, the rear and front uprights 19 and 20 of the frame section 17 are positioned respectively in vertically shiftable embracing relation to the rear and front uprights 14 and 15' of the frame section 12. For securing together the frame sections 12 and 17 in adjustable fixed relation, a pair of bolts 22-22 are projected respectively through the webs of the rear uprights 14 and 19 and the front uprights 15 and 20, the apertures 23-23 respectively in the uprights 14 and 15 of the frame sec tion 12 being suitably elongated.

For securing together the opposite end frames 10 and 11, a number of braces are provided. One of these braces is in the form of a horizontally extending tubular member 24 which is square in transverse cross section. The opposite end portions of the brace member 24 are secured respectively to corresponding intermediate portions of the rear uprights 1919 of the upper frame sections 17-17. For this purpose, the bracing member 24 is provided with flattened opposite end, portions 24" disposed in a longitudinally extending diagonal plane through the member 24, being each bolted as at 25 to the back of the associated rear upright 19.

Another of the aforementioned braces is in the form of a length of channel stock 26 which extends under the brace member 24 in spaced parallel relation thereto with its opposite side flanges presenting forwardly. The opposite end portions of the brace member 26 are secured respectively to corresponding intermediate portions of the rear uprights 19-19 of the upper frame sections 1717. For this purpose, the flanges 26 of the brace member 26 are suitably cut away, and the opposite end portions thereof are each bolted as at 27 to the back of the associated rear upright 19.

Still another of the aforementioned braces is in the form of a lengthof channel stock 28 which extends in parallel relation to the, brace members 24 and 26 with its opposite side fianges presenting downwardly. The opposite end portions of the brace member 28 are seated respectively on the sole plates 1313 of the frame sections 1212 and extend each into the channel between the associated sole plate 13 and the horizontal overlying leg of the foot tie member 16. At each end the brace member 28 is wedged against the underlying sole plate through the medium of a wedge plate 29 having threaded therethrough a wedge screw 30, the latter passing freely through one of a number of elongated apertures 31 in the horizontal leg of the foot tie member 16.

In the operation of the table support embodying the present invention, a table top 32 may be bolted to the support through the medium of bolts (not shown) projected through elongated apertures 33 in the webs of head tie members 18-18 of the frame sections 19-19, as a consequence of which the table top 32 may be shifted fore and aft as desired within limits. The frame sections 17-17 and the brace members 24 and 26 may be shifted as a unit vertically by merely loosening the several bolts 22, shifting the unit as desired and then retightening the bolts 22, as a consequence of which the table top 32 may be selectively positioned within limits at a suitable worlo ing height from the floor. The brace member 28 may be shifted horizontally fore and aft by merely loosening the screws 30-30, shifting the brace member 28 to the positions, suitably relocating the screws 30-30 and then retightening the same.

The brace member 24 extends longitudinally of the table top 32 and is disposed in lower spaced relation thereto, being uniform in cross section throughout its length between the end frames 18 and 11, as a consequence of which the brace member 24 is admirably suited to serve as a rail for carrying an attachment (e. g., a motor) which it is desired to mount for positional adjustment lengthwise of the rail. It will be understood that the brace member 24 need not be square in cross section, but to the contrary may be made of stock shaped otherwise in transverse cross section.

The brace member 28 preferably is provided with a multiplicity of apertures (not shown) along the major portion of its length and breadth and is therefore admirably suited to serve as a shelf for carrying another attachment for positional adjustment lengthwise thereof (e. g., a foot operated device connected to the aforementioned motor for controlling the same).

It should be noted that the table top 32 and the brace member 28 are positionally adjustable fore and aft independently relative to the rail 24, and that the latter and the table top 32 are positionally adjustable together vertically relative to the shelf 28.

It should further be noted that intermediate the head and foot thereof the width of the end frame is sub stantially less than it is across the head or foot and that the interengaged vertically extending straight portions of the uprights and of the frame sections 12 and 17 are set back from the front of the frame so as to provide ample leg room for the operator seated at any point along 4 the length of the table 32. It will be observed that while the upper portions of the uprights 2tl2tl are preferably curved as shown in Figure 1 to 3, these uprights may be of straight line construction for their full lengths, as shown in Figure 4 wherein the upright is designated 20a.

It will be understood, of course, that the table support hereinabove shown and described is susceptible of various changes and modifications which may be made from time to time without any departure from the general principles or real spirit of the invention. Accordingly, it is intended to claim the present invention broadly as well as specifically, as indicated in the appended claim.

What is claimed as new and useful is:

A table-top support including a pair of spaced-upright end members each comprising an upper and a lower section, each section having a rear leg and foreleg fixed in spaced relation by at least one horizontally extending connecting member, the top ends of the fore and rear legs of each upper section being bridged by one of said horizontal connecting members and the bottom ends of the fore and rear legs of each lower section being bridged by another of said horizontal connecting members, said upper and lower section rear legs extending substantially vertically and rectilinearly from their respective bridging members, the foreleg of at least one section of each end member extending rearwardly from its point of connection with its associated horizontally extending bridging member and diverging therefrom, each said foreleg terminating in a rectilinear portion paralleling its associated rear leg, the rear leg and rectilinear portion of the foreleg of said one section of each end member telescopi cally engaging the rear leg and foreleg respectively of the other section of the same end member, whereby the upper section may be adjusted vertically relative to the lower section within the telescoping engagement range of the foreleg rectilinear portion, and a first brace member interconnecting the upper sections of said end members, and a second brace member interconnecting the lower sections of said end members.

References Cited in the file of this patent UNITED STATES PATENTS 164,528 Voight D. Sept. 11, 1951 723,043 Secord Mar. 17, 1903 786,443 Johnson Apr. 4, 1905 950,944 Moore et al. Mar. 1, 1910 1,608,965 Taigman Nov. 30, 1926 1,784,726 Hallowell Dec. 9, 1930 2,116,433 Hallowell May 3, 1938 2,206,774 Hallowell July 2, 1940 2,274,553 Klinke Feb. 24, 1942 2,609,262 Godshall et al. Sept. 2, 1952 2,689,100 Voigt Sept. 14, 1954 FOREIGN PATENTS 272,554 Switzerland Mar. 16, 1951

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