US1865260A - Squeeze roll - Google Patents

Description

June 28, 1932.

G. R. KELTIE 1,865,250

SQUEEZE ROLL Filed Feb. 11, 1950 jive/7757 wye ,3. 1762 2226.

Patented june 28, 1932 UNITED STATES PATENT OFFICE GEORGE E. KELTIE, OF WOONSOCKE'I, RHODE ISLAND, ASSIGNOR TO AMERICAN I WRINGER 00., OF WOONSOCKET, RHODE ISLAND, A CORPORATION OF RHODE ISLAND SQUEEZE ROLL Application filed February 11, 1930.

My invention relates to improvements in wringer or squeeze rolls, particularly wringer rolls of the type adapted for use on power driven wringers.

Formerly in hand wringers and in some power wringers irongears placed on the end of a wringer roll shaft away from the roll have been employed for driving co-actlng wringer rolls. These iron or other metal gears have proved, particularly in power driven washing machines, to be particularly noisy and for this reason washing machine and wringer manufacturers have left the gears off of the rolls entirely, depending wholly on the friction between the rolls to turn the driven roll or rolls. WVhen the wringer rolls, however, get covered with soap, they become slippery and the upper ro-ll does not turn all the time, with the result that the 3 wringer rolls will not grip the clothes to draw the clothes therethrough, but the driving roll will merely turn without having tractive force either upon the opposing wringer rolls or the clothes.

To overcome this objection, Gustav J antz in November, 1925, in Patent #1,516,886 patented a wringer roll comprising an expressing section and a tractive section provided with the resiliently yielding protuberances of soft rubber either by roughening the ends of the wringer rolls or by providing soft rubber ribs or hands for the tractive section. In practice, however, this wringer roll of Jantzs has not proved entirely successful in that with the positive drive means of Jantz comprising resiliently yielding protuberances, the rolls have slipped in practice about as badly as the old plain rolls. My invention includes providing the wringer roll with rigid substantially noiseless positive driving gear means preferably made of hard rubber vulcanized to the shaft and also for the purposes of strength preferably vulcanized to the end of the soft rubber cylindrical expressing body section preferably spur gears having the spurs thereof of greater height than the normal diameter of the expressing section and the grooves between the spurs correspondingly less to form at all times as positive a drive as the former Serial No. 427,502.

metal spur gears, hut substantially noiseless.

These and such other objects of my invention as may hereinafter appear will be best understood from a description of the accompanying drawing which illustrates an 6111 bodiment thereof.

In the drawing, Fig. 1 is a diagrammatic side elevation of a portion of a power driven wringer.

Fig. 2 is a perspective View of my improved wringer roll.

Fig. 3 is a fragmentary sectional view partially shown in elevation of one end of my improved wringer roll.

In the drawing, wherein like characters of reference indicate like parts throughout, 10 generally indicates a wringer roll constructed in accordance with the teachings of my invention. Said wringer roll has the shaft 12 preferably constructed of metal or other suitable material and a preferably central cylindrical expressing body section 1e constructed of suitable soft material, usually a soft rubber secured to said shaft 12, preferably b vulcanizing it thereto. In order to provi e a positive drive gear means substantially noiseless when in operation, I also secure to said shaft 12 suitable positive drive means such as the spur gear 16 constructed of a material relatively noiseless when in mesh, such as hard rubber or phenol condensation product, and also for purposes of strength preferably also secured to the ex pressing section 14. Thus any fused plastic material such as rubber or phenol condensation product may be employed and I therefore in the claims employ the words fused plastic material as covering either hard rubber or phenol condensation product or their equivalents having the silent running characteristics thereof. Where hard rubber is employed, said hard rubber may be vulcanized to the shaft and also to the end 18 of the expresing sect-ion 14. The gear means 16 is provided preferably with the spur teeth 20 normally of a greater height than the radial height of the expressing section 14 and the depressions 22 normally of a lesser height than the radial height of the expressing sec tion 14, so that a positive drive may be ill-- xp e n y' sured when said gear means 16 is in mesh with similar gear means on an adjacent Wringer roll 10. To secure a more positive drive I may provide suitable gear means 16 at each end of the shaft 12 and preferably secured to each end of the central cylindrical expressing section 14.

In Fig. 1 I have shown my improved type of wringer or squeeze roll in use on a power wringer'. In this case the lower wringer roll 10 is positively driven by the means of gearing preferably bevel gears (not shown), through the medium of the vertical shaft 24.

It is obvious that the gear means 16 on each end of the roll 10 will intermesh with the gearmeans 16 on each end of the upper wringer roll 10 to secure at all times a positive drive therefor. Y

My improved wringer roll may be constructed in any suitable manner. lVhere rubber is employed as both the expressing and driving means therefor a plurality of'layers of soft rubber are wound around the shaft 12 as usual and the suitably shaped gear means constructed of hard rubber are suitably slipped on each end of the shaft 12 contact ing the body portion of said layers of soft rubber forming the expressing section 14. The entire roll is then vulcanized in the usual manner, thus vulcanizing the layers of rubher tegether and to the shaft 12 to form the expressing section 14 and to tightly secure the hard rubbergear means to the shaft 12 and also, to, the. ends 18 of the expressing section 14. Any type, however, of an expressing section may be employed and any type of rigid substantially noiseless gear means, such as phenol condensation product or other suit? able material may be employed. It is thus. apparent that I have provided not only a wringer roll having a relatively soft GXPIGSS? ing section and rigid positive drive means, forsaid wringer roll substantially noiseless when in use, but that I have provided in the aetual wringer or other machine the combi: nation of twoor more such rolls which will operate in use in substantially noiseless fashion. a

While my invention is primarily adapted for use in squeeze rolls for wringing ma: chines, it is obvious that it may be employed in any type of a squeeze roll.

It is understood that my invention is not limited to the specific embodiment shown and that various deviations may be made therefrom without departing from the spirit and scope of the appended claims.

\Vhat I claim is: I

1. A squeeze roll comprising a shaft,'a central cylindrical rubber expressing body vulcanized to said shaft, and a hard rubber spur gear having spur teeth of greater height than that of saidrubber expressing body vulcanlzed to, Said shaft and to the end of said

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