Cleaning and Polishing Apparatus. Page: 2 of 3
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UNITED STATES PATENT OFFICE.
SAMUEL C. CARROLL, OF' DALLAS, TEXAS.
CLEANING AND POLISHING APPARATUS.Specification of Letters Patent.
Patented April 27, 1909.
Application filed April 3, 1908.. Serial No. 424,949.
To all wIQm it niay concern:
Be it known that I, SAMUEL C. CARROLL, a
citizen of the United States, residing at l)al-
las, Texas, have invented certain new and
5 useful Improvements in Cleaning and Polish-I
ing Apparatus, of which the following is a
specification.
My invention relates to an improved ap-
paratus for cleaning and polishing portable
10 articles of various kinds and shapes in an
expeditious manner by the wse. of a sand
blast.<.
The object of the invention is to provide
an apparatus by which a considerable num-
15 her of articles may be subjected to the action
of the sand blast within. a closed space so
that the attendance of an operator in prox-
imity to the article during the polishing oper-
ation is unnecessary.
20 I have also aimed to provide a construe-
tion by which all parts of the article to be
cleaned or polished 7avill be presented auto-
muatically to the action of the sand blast.
With these and other objects i view, the
25 invention includes the 'features of con-
struction and arrangement and combina-
tion of parts hereinafter described and par-
ticularly set forth in the appended claims.
An apparatus constructed in accordance
30 with my inventionis illustrated in the accon-
panying drawings, in which,-
Figure 1 is a sectional elevation, and Fig.
2 is a plan view of the table with parts
broken away.
35 Referring by reference characters to these
drawings, the numeral 10 designates a room
or chamber which is closed with the excep-
tion of such openings as are hereinafter de-
scribed, and is designed to contain the arti-
40 les which are to. be cleaned or polished.
Within this chamber is located a rotating
table 11, which is mounted upon a vertical
shaft 12, which is designed to be rotated
from a suitable source of power through any
45 desired form of intervening driving connec-
tions, a convenient form being beveled gear
wheels 13 and 14 and drive shaft 15. With-
in the room or chamber 10 and directly be-
neath the rotating table 11 is an annular
50 flange 16 provided with an internal rack 17,
the latter being secured rigidly in place in
any suitable manner, as for instance by bolt-
ing the flange or portions thereof to the floor,
as indicated at 18.
55 . In the table are journaled a plurality of
vertically disposed shafts 19 which carryat their lower ends planet gear wheels 20,
which. are designed to mesh with the stet-
tionary rack 17, so that as the table is ro-
tated the planet gears will be rotated by 60
their engagement with the stationary .rack,
thereby imparting rotary motion to the ver-
tical shafts 19. Upon the upper ends of the
shafts 19 are located supporting pedestals
or platforms 21 which are connected to the 0r>
shafts by ball and socket joints 22, which
joints are -so arranged that the pedestal is
free to rock in all directions, but is compelled
to rotate with its supporting shaft. Each
pedestal. however, is normally held in a lori- 70
zontal position by means of springs 23 in-
terposed between the pedestal and the table
11 or a raised part 24 thereon, which part
24 may form an additional bearing for the
shaft 19. At one side of the room and at a 7
suitable height is located a sand blast nozzle
25, which is designed to project a sand blast
horizontally across the room.
It will readily be seen that as the table
rotates the articles such for instance as bat h 9(
tubs, chairs, and other articles of furniture,
or indeed any articles, which it is desired to
subject to the cleaning and polishing action
(J1 the sand blast and which have been pre-
viously placed upon the supporting pedCes- 85
tals 21, will be carried around with the table,
and at the same time have a rotary motion
upon their own axes imparted -thereto. The
result will be that the articles will be brought
successively past the sand blast and will be. 90
constantly rotated so as to present every
portion to the action of the blast. Further,
by reason of the pedestal being flexibly
amounted as before described, the article will
rock or incline to one side under the action 95
of the blaat and thus the lower or under parts
of the articles will be subjected to the blast.
- While various forms of sand blast appara-
tus might be employed without departing
from the spirit of my invention, I have found 100
that shown in the drawings to be a very con-
venient and desirable form. In this the
nozzle 25 is elongated in a vertical direction
as shown and with it is connected a pipe 26
to which is connected an injector 27. This 105
comprises a three-way coupling, one branch
arm of which is connected to the pipe 26,
while another receives the nozzle 28 or an
air supply pipe 29 which connects with any
suitable source of compressed air supply, 110
such for instance as an air compressor or
pump shown conventionally at 30. A suit-No. 919,417.
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Carroll, Samuel C. Cleaning and Polishing Apparatus., patent, April 27, 1909; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth509144/m1/2/: accessed July 10, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.