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Патент USA US2107580

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Feb. 8, 17938.
Filed Sept. 11, 1935
Harry H. Parks.
Zeé A. Thomas.
Howard 5. 7720mm.
Patented Feb. 8, 1938
Harry H. Parks, Huntington Park, Lee A.
Thomas, Maywood, and Howard S. Thomas,
Huntington Park, Calif.
Application September 11, 1935, Serial No. 40,070
1 Claim. (01. 51-109)
This, invention relates to shoe ?nishing ma- 30 to the motor housing 20. The casing 29 is
chines. ’
provided with an air inlet 3| which communicates
The general object of our invention is to pro- with a conduit 32. This conduit 32 is U-shaped
vide an improved shoe ?nishing machine by and is secured to the casing by screws 33. The
5 means of which the sole or other part of the shoe conduit 32 passes through the slot I2 and ter- 5
’ may be properly ?nished and wherein novel minates in a segmental housing 34 which is dis
means is provided for removing the material posed adjacent the abrasive member 21. This
taken from the shoe.
housing 34 has a top wall 35, a. bottom wall 36,
Another object of the invention is to provide and an outer peripheral wall 31. The inner face
10 an improved shoe ?nishing machine including 38 of the housing 34 is open. One end of the 10
an abrasive wheel with a novel suction member housing 34 is closed by the closure plate 39 which
for removing the material taken from the shoe. may be held in place by the screws 40, but the
A further object of our invention is to provide other end of the housing M is open.
an improved mounting for the abrasive member
In operation the machine is mounted on a base,
15 of a shoe ?nishing machine.
as described, and when the motor is operating 15
Other objects and the advantages of our inven- the rotor 28 produces a suction, creating a par
tion will be apparent from the following desorip- tial vacuum in the conduit 32 and a partial vacu
tion taken in connection with the following draw- um in the segmental housing 34. This partial
ing wherein:
vacuum draws the material removed from the
Fig. 1 is a side elevation of a machine embodying the parts of our invention;
shoe into the conduit 32 and also draws any ma- 20
terial such as dirt or abraded material from the
Fig. Zisaside elevation partly in section showing the machine;
abrasive member 21 through the conduit 32,
whence it passes into the housing 29 and out
Fig. 3 is a top plan view of the machine; and
Fig. 4 is a bottom plan View of the machine.
through an exit 42 in the housing to a conduit
43 where it may pass to a suitable receiver for 25
Referring to the drawing by reference char~ the waste material. The slots I‘! allow the ma
acters we-have shown our invention as embodied chine to be adjusted vertically relative to the
in a shoe ?nishing machine which is indicated base II, while by removing the sleeve 24 and
generally at I9.
placing a longer or shorter sleeve thereon the
As shown the machine I0 is mounted on a base position of the abrasive member 2'! relative to the 30
II which may be made of wood and which is bottom 36 of the housing 34 can be adjusted.
provided with a slot- I2. On the base II we show
Preferably the abrasive member 21 is disposed
a pair of brackets I3. Each bracket is L-shaped just below the plane of the bottom wall 36, also
and includes a portion I4 which is secured by the exact position will depend upon the require
35 bolts I5 to the base II. Elach bracket further ments of the work being performed. It will be 35
includes an upstanding portion I6 which has slots understood, of course, that the rotor 28 and cas
I‘l therein through which bolts I8 pass. These ing 29 can be mounted below the motor on the
bolts I8 engage a motor pedestal I9 to hold this shaft 2|, which may be elongated for this pur
pedestal in position. By means of the slots I'I pose, and just above the abrasive support 25 in
40 the vertical position of the pedestal I9 can be stead of as shown, and that in this construction 40
adjusted. The pedestal I9 supports‘ a motor the length of the U-shaped conduit 32 would be
housing 20 within which is an electric motor much inclined.
which has an armature shaft 2I projecting from
From the foregoing description it will be ap
one end and an armature shaft 22 projecting
45 from the other end. The lower end of the armature shaft 2I is threaded as at 23 and over
this threaded portion We?rmnge a removable
sleeve 24. On the threaded end 23 we threadedly
secure an abrasive wheel support 25 and on this
50 support 25 We arrange a sponge rubber disc 26An abrasive member 21, such as sand paper is
secured to the disc 26- The armature Shaft end
22 has a fan rotor 28.suitab1y mounted thereon
and above this fan rotor 28. We provide a cas55 ing 29 Which is Shown as Connected by screws
parent that We have invented a novel shoe ?n
ishing machine which is simple in construction 45
and highly e?icient in use.
Having thus described our invention we claim:
In a shoe ?nishing machine, a support having
a, pair of brackets mounted thereon, a, motor
including a pedestal and an armature shaft, 50
means to adjustably mount said pedestal on said
brackets with the armature shaft vertical, a
housing for said motor, said armature shaft pro
jecting beyond each end of the motor housing,
an abrasive wheel on one end of said shaft, the 55
other end of said shaft having a fan rotor
mounted thereon, a casing surrounding said ro
tor, said casing being secured _to said motor
housing, said easing having an in1et,;a conduit
shaped and.
into extending
said inlet, around
said conduit
said fan
and said motor housing and between said brackets
and including an inlet portion disposed adjacent
said abrasive wheel, said inlet'portion including
a segmental housing ghorizontally disposed and
extending foriimore than 180° about the abrasive
wheel, said‘ housing having an outer peripheral
Wall; and upper and lower walls ‘and having an
opening to the interio'nsaid opening being radis
posed adjacent said abrasive member, a closure
for one end of said opening, the other end of
said opening .beingopen, said fan rotor casing
having an exit therefrom and a ?exible member »
‘communicating with said exit.
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