US 2270744 A
Description (OCR text may contain errors)
Jan. 2o, 1942. H, SINGER POLISHING DEVICE Filed Aug. 26, 1939 INVENTOR.
Patented Jan. 20, 1942 UNITED STATESA PATENTV OFFICE POLISHING DEVICE Harry Singer, New York, N. Y.
Application August 26, 1939, Serial No. 292,052
Thisinvention relates to polishing devices and more particularly to polishing devices for drinking glasses and the like.
'I'he objects of the invention are to provide an improved rotatable polisher; to provide a polishing device which will act upon the full depth of a drinkin-g glass and will polish the entire inside surface thereof; to provi-de a polisher which is rotatable and which will enable the user to hold onto the drinking glass next the outside and bottom thereof while the polisher rotates; to provide for polishing the rim of the glass and also the outside portion of the glass next the rim; to provide a polisher `which will function upon special- 1y4 shaped drinking glasses, such as glasses having circular bulges therein; to enable the polisher -to be applied to such specially shaped glasses; to secure simplicity of construction and operation; and to obtain other advantages and results as may be brought out in the following description.
In the drawing- Figure 1 is an elevation of a preferred embodiment of the invention;
Figure 2 is a plan thereof;
Fig-ure 3 is a vertical sectional view as upon line 3-3 of Figure 2;
Figure 4 is a sectional view of a modified construction of drying element;
Figure 5 is a further vertical sectional view of another modification of drying element; and
Figure 6 is a similar sectional view of a still further modified construction of drying element.
In the specific embodiment of the invention illustrated in said drawing and referring initially to Fig-ures 1 to 3, the drying device preferably comprises a spider-like construction of drying element here shown of a symmetrical shape in respect to the central axis and secured to a driv ing post or element I0 situated axially coincident with the said drying element. As here shown, the drying element comprises a plurality of Wires or other flexible and resilient arms II which extend radially from a central hub I2 each substantially a distance equal to the radius of the drinking glass to be cleansed and then bent at right angles or otherwise to follow the contour or longitudinal configuration of the drinking glass. As here shown, the drinking glass I3 indicated in Figure 1 by dot-anddash lines, has a configuration which has its side wall truly cylindrical for its portion next the bottom wall of the glass and is perpendicular thereto. Sai-d side wall, as it approaches the rim edge thereof is shown with a bulbous portion, that is to say, the
wall bulges throughout its circumference to a f lvolved by rotation of said post.
greater diameter and .back again to a lesser diameter next the rim of the glass. Accordingly, the said arms of the drying member are shown as bent from the diverging portions at right angles thereto and into parallelism with respect to each other, so as to substantially t within the cylindrical bottom portion of the glass. Each arm alsoV is bowed outwardly as at III to substantially fit the bulbous portion of the drinking glass and then returns to parallelism as at I5 with the other arms as far as necessary to reach the rim of the glass, the arms then each bending outwardly over the rim as at I6 and back again on the outside of the glass in parallelism to the portions I5, as at I I and then flare away from the bow I4 as at I8 so the diametric distance between the ends of a pair of opposite arms will be greater than the maximum diametric distance between the bowed portions of the same pair of arms. The said arms are secured to the hub I2 and the hub in turn is secured to the driving post I0 so the arms will be positively re- Any suitable mounting and driving mechanism for the post (not shown) such as an electric motor, may be provided'.
The arms heretofore described are preferably covered throughout with a suitable covering material I9, such as cloth, so that the metal forming the arms will not be in contact with the drinking glass, but the cloth I9 will have contact with the glass and by virtue of the revolution of the arms, the cloth will polish the glass upon its entire interior surface, rim and outer margin.
It will now be understood from the foregoing description that by Virtue of the exibility and resiliency of the arms, that the same will distort when a drinking glass is forced downwardly upon the same, the bowed portions of the arms being pressed inwardly until the constricted rim portion of the glass passes the same after which the bowed portions return outwardly and engage the bulbous interior surface of the glass. Rotation of the dryer through its suitable actuating mechanism or motor progressively carries each arm around the circumference or interior surface of the glass, there being space between successive arms which gives access of air to the vglass surface between successive arms and consequently there is not only polishing action, but a whirl of air in contact with the glass surface both of which function to produce a high polish. It is furthermore to be observed that the construction enables the user to grasp the glass throughout a very considerable portion of its outside surface to hold the same from turning while the polisher is rotating within. The resiliency of the arms obtains an adequate grip on the glass to prevent the glass from inadvertently ejecting itself from the whirling polisher should the user let go of the glass while the polisher is rotating.
If so desired, the drying element may be provided with a bottom spider 20, the central portion of which is apertured for the driving post to pass therethrough, said spider providing arms which extend outwardly to the lower bend I6 of the several arms and welded or otherwise secured thereto. This lower spider 20 will function to somewhat increase the rigidity of the polishing element and maintain it symmetrically situated with respect to the driving post. The exibility of the arms will still suffice to enable the drinking glass to be forced downwardly upon and over the bowed portions of said arms. This lower spider is likewise preferably covered with the covering material I9.
Referring now to modification illustrated in Figure 4, certain features of the drying and polishing function will be obtained by provision of a sponge rubber polishing element 2 I, the shape of which is made identical with the interior shape of the glass to be polished. The resiliency and flexibility of the polishing element 2l will permit its introduction into the drinking glass notwithstanding the rim of the drinking glass may be smaller than a bulbous or other interior portion thereof. By way of illustration I have shown the element 2l as having a bulbous portion 22 so that the said element will be usable in connection with a glass such as shown in Figure 1. Preferably the element is fabricated directly upon a metal core piece 23 which is threaded at its interior portion to receive a driving post ID. The post l0, when rotated by a motor or otherwise accordingly will rotate the element 2l and a drinking glass may be accordingly polished throughout its entire interior surface.
In Figure 5 I have shown a cylindrical drying element 2,4 having ends 25 and 26 and an interior hub 21 on one end anda suitable opening 28 at for receiving the driving post IB.
the other end, both axially disposed with respect to the cylindrical wall of the element so that a driving post H) may be inserted through opening i.
28 and screwed into hub 21. The said cylinder is also shown as providing next one end, and preferably next the end which has the opening 28, with an exterior up-turned ange 29, the upper edge of which flares outwardly so as to admit the rim portion of a glass between the cylindrical body portion and the flange. The inwardly facing surface of the flange and the outer and top surface of the cylinder are covered by suitable polishing material, such as cloth 30.
The construction shown in Figure 6 is likewise provided with a cylindrical body portion 3| shown as open at its bottom and closed at its top and having an interior hub 32 axially disposed therein The exterior surface of this drying element is provided with a covering and polishing material, such as cloth 33.
Obviously detailed changes and modifications may be made to enable the invention to be used for all purposes, and I do not want to be understood as limiting myself to the precise forms here shown except as defined by the following claim when construed in the light ofthe prior art.
A polishing device of the character described comprising a plurality of flexible arms adapted to flex inwardly under pressure of a drinking glass being forced downwardly thereon, said flexible arms bowing outwardly approximately midway and returning to parallelism towards the outer ends thereof adapted to fit the bulbous `portion of the glass, said arms turning upwardly and outwardly at their lower ends terminating at approximately the lower part of the arms where bowed and then flaring outwardly therefrom adapted to receive and snugly 'engage the rim and outer margin of th'e glass next the rim, and said arms each having a polishing element for engaging the interior of the glass and the exterior of the glass where engaged by the upwardly and outwardly extending portions of said arms.