US1597954A - Vacuum cleaner - Google Patents

Description

Aug. 31, 1926. v 1,597,954

J. CODRICK ET AL VACUUM CLEANER Filed Dec. :3, 1924 WITNESSES 728/2 0 o r I Yf/Elb ATTORNEY Patented Aug. 31, 1926.

.UNITED STATES JOHN CODRICK AND'RAYMOND 1P." DANLEY, OF PHILADELPHIA,PENNSYLVANIA,

SIGNORS'QF ONE-FOURTH T JACOB TBACHTENBERG, ONE-ETGHTH TO HQWARD IR. WILSON, OF PHILADELPHIA, PENNSYLVANIA, THREE-EIGHTHS T0 SAM) C0- IDEICIK AND ONE-FOURTH T0 SATZD DANLEY.

, vacuum stamina. 7 Application filed. December 3, 1924;. Serial No. 758,535.

Our invention relates to vacuum cleaners having a brush and more especially to the brush holding means.

The usual method of cleaning carpets, velvets, etc., having a high and a low napon their surfaces,- is to adjust the nozzle of the vacuum cleaner toward or from the nap. The purpose of this adjustment is to effect a more efficient suction through the nap into the nozzle, For example, a high nap requires the nozzle to be further from its backing than a-low nap. Such adjustment of the nozzle also moves the brush with it so that the brush is further from the backing having-a high nap than from the backing havin' a low nap. The objection to this method of cleaning is that the dirt and grit lodged deeply between thefibe'rsof. a high nap is never reached b the brush, and that the brushing effect on t e fibers of a low nap is so deep and severe that. the fibers are pulled out of the backing.

The objects of our invention are .to pro-' vide means for holding the brush whereby the operator-may quickly set the brush to clean deeply between fibersof a high nap 'or tobrushlightly on carpets havin [-a low or (no nap, and to provide means W ereby the brush may be adjusted to compensate for wear without efiectingthesetting ing naps of different depth.

These objects, and other advantageous ends which will be described hereinafter, we :attai'n in the following manner, reference being had to the accompanying drawings, in

which Figure l-is a side view, artly'in section, ofa vacuum cleaner emb ying our invention.

Figure 2 a rear view of the vacuum cleaner shown in Figure 1, certain-of the partsbeing broken away. O We'have shown our invention used in connection with one type of brush, but it 4 may. be'used equally well with all types of brushes. I

Referring to the drawings, 1 indlcates a vacuum cleaner-having a nozzle 2, 3 a brush therein having ball, bearings 4 at its ends.

: The brush may be rotated by any suitable means, such as a belt 5 passing around the.-

-shaft of the brush and a pulley 6 fixed tothe rear traction Wheels 7. Our invention -the brush when it is worn. The

for cleanand hence we do not supports brush 3 in such manner that the brush may be readily lowered relatively to the nozzle forcleaning a fabric having a high nap, and raised for cleanin 'a fabric having a low nap." The brush hol lng means in its simplest and preferred form consists of a piece of heavy wire 8 bentto form a U-shaped part 9' having its legs 10 bent out- ,wardly in the plane of the U to provide shaft parts 11, then bent inwardly out of the plane of the U to provide arms 12? h-avin their ends 13 bent into hook shape for re ceiving the bearings 4: of the brush. The shaft parts 11 are pivoted on the cleaner preferably in brackets '14 which also serve as bearings for the front traction wheels 15. The U-shaped part 9-servesas a handle for lowering and raising brush 3.. It is held in" either position by a spring clip 16 secured to the cleaner by screws 17 passing through a slot 18 therein so thatthe clip maybe ad justed lengthwise to efi'ect an. adjustment of spring clip 16 has corrugations 17 which take over the top of the U-shaped'part 9 to hold it in position. An extension 18 is preferably provided on clip 16 for raising the clip when so setting the brush for cleaning fabrics having high, low or no naps.

When cleaning a fabric having a high nap, brush '3 is lowered to the position. shown in Figure 1. To clpan a fabrichav- 'ing a low nap, brushBis raised by moving the U-shaped part 9 into the intermediate corrugation 17 To clean a fabric without nap, the brush is raised by moving the U- shaped part 9 into the third corrugation 17. The wear on the brush is compensated for by adjusting clip 16 lengthwise to bring the i brush downward. Such adjustment does not afi'ect therelative settingof the brush for cleaning fabrics no nap. j

4 While we have described our invention as taking a particular form, it will be under stood'that the various parts may be changed without departing from the spirit thereof,

limit ourselves to-the precise construction set forth, but, consider that we are at liberty to make such changes and alterations its-fairly come within the scope of the appended claim.

Having thus described ourdnvention, what having ahigh, low or P we claim as new and desire to secure by Letters Patent is Means for supporting and adjusting abrush in a vacuum cleaner of a type having brackets supporting the traction wheels and having a nozzle arranged in advance of said brackets, said means consisting of a U- shaped operating handle; extensions projectmg in opposite directions from the lower ends of said handle in the plane thereof and having bearin in said brackets transversely thereof in posltions to the rear of the tractionwheels; arms extending forwardly from holding a brush therein; and means for holding the handle in adjusted position substantially as described. W

In testimony whereof We have signed our names to this'specification.

JOHN CODRICK. RAYMOND P. DANLEY;

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