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Патент USA US2105355

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Jan. 11, 1-938.
P. P. KESSLER
2,105,355
SEWING MACHINE FRAME STRUCTURE
Filed Feb. 10, 1936
3 Sheets-Sheet l
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Jan. 11, 1938.
P. P‘ KESSLER
2,105,355
SEWING MACHINE FRAME STRUCTURE
Filed Feb. 10, 1956
5 Sheets-Sheet 2
0274a;
Jan. 11, 1938.
P. P. KESSLER
2,105,355
SEWING MACHINE FRAME STRUCTURE
Filed Feb. 10', 1936
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3 sheets-jsheet 3
‘Patented Jan. 11, 1938
2,105,355 "
UNITED STATES
PATENT OFFICE
2,105,355
sawmo momma FRAME srnuc'runn
_Paul P. Kessler, Chicago, 111.
Application February '10, 1936, Serial No. 63,048
6 Claims.
(01. 112-258) .
My invention relates to a sewing machine frame
structure.
Among the objects of my invention are the
following: to create a sewing machine frame
5 structure having an upper portion so attached to
a lower portion as to permit both lateral ‘and
vertical movement of the upper portion with re- '
lation to the lower portion thuspermitting both
desired o?' center stitching and the accommoda
10 tion of di?erent thicknesses and kinds of mate
rials, and such other objects, advantages and ca
pabilities- as will later more fully appear and
which are inherently possessed by my invention.
While I have shown in the accompanying draw
15 ings a preferred embodiment of my invention yet
I wish it understood that the same is susceptible
of modi?cation and change without departing
from the spirit of my invention.
Figure 1 is a side elevation of the sewing ma
20 chine embodying the several features of my in
vention.
I
Figure 2 is a front elevation of the same.
Figure 3 is a rear elevation of the same.
_
Referring more particularly to the embodiment
25 selected to illustrate my invention, it comprises a
arm normally in engagement with member I‘ to
impart movement to member 18 upon pressure
being applied to lever l9. 0! course the adjust
ment through members II and i6 is to provide
lifting clearance during the sewing operation in- 5'
dependently of the lifting by lever l9. This in
sures not only proper clearance but proper pres
sure on different thicknesses andkinds of ma
terials to the highest degree of accuracy.
The lower portion ll of the frame l0 houses 10
the feeding mechanism 31. of the construction
defined and‘ claimed in my co-pending applica
tion, Serial No. 78,051, filed May 5, 1936.
Having thus described my invention I claim:
1. In a sewing machine frame structure. a body 15
member' having a lower portion and a separate
upper portion, and adjustable means movably
attaching said lower and upper portions, said
means permitting lateral adjustment of the
upper portion for desired off center stitching.
20'
2. In a sewing machine frame structure, a body
member having a lower portion. and a separate
upper portion, and a pair of adjustable hinge
screws for movably attaching said lower and
upper portions, said hinge screws, permitting lat- 25
frame Ill of two partshaving a base or lower‘ eral adjustment of the upper portion for desired
portion H, and an upper portion l2, movably at
tached to said base H by a pair of adjustable
. hinge screws. l3.
By the use of my adjustable
30 hinge screws I 3, I am able to move" the upper
portion l2 of‘ the frame Ill laterally, either to
‘the left or to the right so that the stitching mem
ber 65 is thereby positioned of! center for the
purpose of stitching in a desired off center man
35 ner. Integral and extending from the rear of
the upper portion I2 of the frame I0 is an exten
sion l4, having a hole ii, for receiving a bolt H.
A member 16 preferably extends through an open
portion of the lower portion II and contacts
40 lever l9 which is fulcrumed on shaft-l8. Adja
cent its upper end member l6 has a slot 1| slid
ably receiving bolt 11. Prior to adjustment, bolt
I 1 is loosened so that member I 6 may be moved
so that bolt I1 is in the desired position within
45 slot ‘H. When the bolt I1 is tightened, member
16 is positioned to correctly allow the desired
lifting clearance of the upper portion l2 as it
is lifted vertically and arcuately to accommodate
the desired thickness of material. Bolt I‘! may
50 be loosened whenever desired and member I 6
moved so that bolt I1 is located‘in a different
position within slot ‘H and then tightened for
permitting a different desired lifting clearance.
The lifting operation is effected through lever
55 I9 ‘which is fulcrurned on shaft l8 and has one
o? center'stitching.
3. In a. sewing machine frame structure, a
body having a lower portion carrying a feeding
mechanism, and an upper portion carrying a 30'
stitching mechanism, adjustable means for at
taching said upper portion to said lower portion
to permit both lateral adjustment of said upper
portion with respect to said lower portion for
desired oif center stitching, and also vertical 35
movement of said upper‘ portion with respect
to said lower portion to accommodate different
thicknesses andkinds of material, said upper
portion adapted to act of its own 'weight'as a
pressure means during a sewing operation.
40
4. In a sewing machine frame structure, a body
having a lower portion carrying a feeding mech
anism, and an upper portion carrying a stitching
mechanism, adjustable means for attaching said
upper portion to said lower portion to permit both 45
lateral adjustment of said upper portion with re
spect to said lower portion for desired oil.’ center
stitching, and also vertical movement of said
upper portion with respect to said lower portion
to accommodate different thicknesses and kinds 50
of material, said upper portion adapted to act
of its own weight as a pressure means during a
sewing operation, adjustable means attached to
said upper portion for controlling the desired
lifting clearances of the upper portion with re- 55
2
‘2,105,365
spect to the lower portion and manually operable
means for lifting said upper portion.
5. In a sewing machine frame structure a lower
portion, an upper portion, means for movably
attaching the upper portion to the lower por
tion, said upper portion having an extension,
said extension having a bolt, a member having a
slot, said bolt slidable within said slot and adapt~
ed to be tightened at any desired position within
said slot so as to permit desired lifting clearances
of the upper portion with respect to the lower
6. In a sewing machine frame structure, a
body member ‘having a stationary lower portion
carrying a feeding mechanism and a separate
upper portion carrying a stitching mechanism,
a hinge for attaching the upper portion to the
lower portion to permit vertical movement of
the upper portion and the stitching mechanism‘
it carries with respect to- the lower portion and
its feeding mechanism, said upper portion adapt
ed to act of its own weight as a pressure means
so that during the sewing operation the stitching
mechanism will automatically adjust itself to
portion for accommodating di?erent thicknesses
of material and manually operable means en i apply the proper pressure on di?erent thicknesses
gageable with said member for lifting said upper and kinds of material. , ./ '
portion.
‘
'
PAUL P. KESSLER.
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