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Патент USA US3079891

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March 5, 1963
B. N. PIERCE
3,079,881
ENCLOSURE FOR SEWING MACHINE FEED MECHANISM
Original Filed June 11. 1954
9 Sheets-Sheet 1
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In 12 497260 r:
Bernard NPierce
B
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?zb'jlttorneys
March 5, 1963
B. N. PIERCE
3,079,881
ENCLOSURE FOR SEWING MACHINE FEED MECHANISM
Original Filed June 11, 1954
9 Sheets-Sheet 2
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3,079,881
B. N. PIERCE
ENCLOSURE FOR SEWING MACHINE FEED MECHANISM
Original Filed June 11, 1954
9 Sheets-Sheet 3
in vendor
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BermardA/SPierm-e
[?s- Attorneys
March 5,: 1963
3,079,881
B. N. PIERCE
ENCLOSURE FOR SEWING MACHINE FEED MECHANISM
Original Filed June 11, 1954
9 Sheets-Sheet 4
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ENCLOSURE FOR SEWING MACHINE FEED MECHANISM
Original Filed. June 11, 1954
9 Sheets-Sheet 5
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ENCLOSURE FOR SEWING MACHINE FEED MECHANISM
Original Filed June 11, 1954
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March 5, 1963
B. N. PIERCE
3,079,881
ENCLOSURE FOR SEWING MACHINE FEED MECHANISM
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Inventor:
Bern ard NPierce
March 5,’ 1963
3,079,881
B. N. PIERCE
ENCLOSURE FOR SEWING MACHINE FEED MECHANISM
Original Filed June 11, 1954
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Inventor:
?ernard?l'ierce
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His Attorneys
March 5, 1963
3,079,881
B. N. PIERCE
ENCLOSURE FOR sawmc; MACHINE FEED MECHANISM
Original Filed June 11, 1954
9 Sheets-Sheet 9
FIG. 22
INVEN TOR.
BERNARD N. PIERCE
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3&79381
Patented. Mar. 5, i953
2
1
FIG. 13 is a detail sectional view on line 13-13 of
FIG’. 12;
3,079,881
ENCLOSURE FGR SEWENG MACHINE
FEED MEfIHANlSM
Bernard N. ierce, ‘West Hartford, Conn, assignor to The
Marrow Machine Company, Hartford, Conn, a corpo
ration of {Ionnectient
Continuation of application Ser. No. 436,116, June 11,
1954. This application Mar. 16, 1959, Ser. No. 798,493
16 Claims. (61. 112-256)
FIG. 14 is a detail view of the inner side of a standard;
FIG. 15 is a cross sectional view of the feed mechanism
compartment taken on the line 15-15 of FIG. 1;
FIG. 16 is an isometric view of the work plate support
ing bracket;
FIG. 17 is a side elevational view of the work plate
supporting bracket;
10
FIG. 18 is a cross sectional view taken on a vertical
This application is a continuation of application Serial
No. 436,116, ?led June 11, 1954, now abandoned.
This invention relates to sewing machines and more
plane passing substantially centrally through the feed dog
presenting and’ supported by numerous bearing surfaces
and with the feed mechanism, work plate supporting
bracket, and work plate removed;
mechanism compartment;
FIG. 19 is a cross sectional view taken on the line
1.9-4.9 of FIG. 1;
7
particularly to a form of enclosure for feed mechanism in
FIG. 20 is a perspective view of the interior of the
an overedge sewing machine of the Merrow type. The 15
feed mechanism compartment, showing the door open,
feed mechanism indicated includes certain movable parts
that preferably are constantly supplied with a ?ow of
lubricant. While such ?ow of lubricant is relatively
minute in quantity it accumulates on certain areas of
moving parts and is thrown therefrom when the mech
anism operates at speeds normal to its use. Lubricant
thus discharged, as well as that draining from stationary
FIG. 21 is a perspective view of the sheet metal guard;
and
FIG. 22 is an elevational view showing details of the
inside of the rear wall plate.
Referring to the drawings, the sewing machine illus
trated is substantially similar to the “Merrow” type over
exposed areas of and adjacent the machine and to ma 25 edge sewing machine. It includes a frame 1, base 2 and
surfaces, is especially objectionable when transferred to
terials comprising the work.
Primarily, the object of the invention is to prevent oil
discharged from bearing surfaces of a sewing machine
a mounting plate 3, all suitably secured together for sup
port on the usual sewing machine table. Screws as 5
secure machine frame 1 and base plate 2 together with a
feed mechanism from being transferred to areas where it
suitable gasket 6 therebetween. Also interposed between
would be objectionable and for conducting lubricant
the frame and base plate 2 are a gasket 7 and a ?lter
away from such areas to drainage ducts or parts to be
plate 8. The ?lter plate overlies a depression or sump 9
in the base plate 2 and underlies a mechanism compart
ment 1% in the machine frame, see FIGS. 5 and 6.
lubricated. The invention resides in the arrangement of
certain barriers forming a feed mechanism compartment
presenting interior surfaces effective to intercept discharged
oil and so disposed as to direct this oil away from ob
jectionable areas into a sump where it is available for
Excess lubricant discharged from moving parts of the
machine passes through ?lter plate 8 into sump 9 and is
there available for redistribution by means not here shown.
The main shaft 11 of the machine extends from mecha
nism compartment 19 through bearing bore 12 and there
beyond as at 13 to support elements of feed mechanism
FIG. 1 is an elevation of the left or head end or" a
40 indicated in a general way by 14, see FIGS. 2 and 3.
sewing machine embodying my invention;
Feed mechanism 14 includes feed dog carriers 15 and 16
Flu. 2 is a plan view of parts including the feed mecha
and links 17 and 18 for actuating respectively carriers
nism below the machine work plate shown in FIG. 1
15 and 16.
showiru7 a portion of the machine frame in section;
Beneath feed mechanism 14 is an end extension 19 of
FIG. 3 is a view showing the work plate as in FIG. 1
machine frame it which de?nes the lower wall of a feed
but with a feed mechanism compartment door omitted to
mechanism compartment enclosing the feeding mecha
show parts normally covered thereby, some of the parts
nism. The upper surface of extension ‘19 has formed
being shown in section and others broken away;
therein a depression 26 and a groove 21, the latter being
FIG. 4 is a rear view of the head end of the machine,
formed at the base of vertical end wall 22 on the machine
partially in section to show details of a support for a feed
50 frame 1. End of wall 22 de?nes a partition between main
mechanism compartment door;
mechanism compartment 19 and the feeding mechanism
FIG. 5 is a partial sectional view of the front of the
compartment. This groove extends substantially across
machine frame with the standard and certain parts of the
the Width of the machine frame so that the ends of the
mechanism omitted or broken away;
groove underlie respectively the lowermost end of a drain
FIG. 6 is an elevation of a portion or" the front of the
redistribution.
‘In the drawings:
machine adjacent the head end;
FIG. 7 is a horizontal sectional view of the head end
of the machine frame showing the portions of the feed
mechanism compartment de?ned by the main machine
frame;
FIG. 8 is a sectional view similar to FIG. 2 showing a
guard that is shown only partially in FIG. 2 and also
showing edge guides that overlie said guard;
FiG. 9 is a view similar to FIG. 3 showing a side eleva
tion of a guard shown in plan in FIG. 8 and a standard
in section taken on line 9-9 of FIG. 8;
' FIG. 10 is a rear side elevation similar to FIG. 4, with
the rear wall plate, door, and work plate removed;
FIG. 11 is a detail view of the inner side of a feed cover—
ing door;
FIG. 12 is a detail sectional view on line 12-i2 of
FIG. 1;
age groove 23 in the back face of a rear vertical wall 24
of the machine frame and a drainage groove 25 in the
front face of forward vertical wall 26 of the machine
frame, see FIGS. 1, 3, 6 and 8. Oil collecting on the
exterior faces of the machine frame will accumulate in
drainage grooves 23 and 25 and be returned to the feed
ing mechanism compartment. Apertures 27 lead from
groove 21 and are downwardly inclined toward ?lter plate
8 in the mechanism compartment 10 (FIGS. 5 and 7).
Lubrication for the feed mechanism may be provided
in various ways. As shown, a duct 28 is provided for
conducting lubricant from an upper shaft hearing as 29.
This duct 28 extends through the machine frame 1 to
hearing bore 12. For conducting lubricant from the bear
ing bore to feed mechanism 14, a spiral groove St} is pro
vided in machine shaft 11.
Overlying feed mechanism 14 is a work plate 31 pivotally supported as by pivot pin'35 on a bracket 32" which
smaser
3
4
is secured to machine frame 1 as by screws 33, see FIG. 3.
The structure of brackct'32 may be best seen in FIGS.
16 and 17. At its upper portion bracket 32 is formed
with a ?at bearing surface 32:: which (FIG. 2) provides a
41. This lubricant ?ows by gravity down these ?ns to
their inclined edges and along the edges to the apex 63
and the apex 66, respectively; From these centrally dis
machine-frame extension 15. 'Pivotal pin 35 secured by
set screw 36 permits the work plate to be swung from
63 to intercept lubricant discharged toward the juncture
of door 41 and standard 34 and return this lubricant along
normal position to clear adjacent parts as for their in
spection, replacement or adjustment. It will be observed
that the structure thus far described de?nes certain walls
of Va compartment for feed mechanism 14. Machine
?n 65.
posed points, lubricant drops into depression 2% and ‘lows .
bearing surface in opposition to a bearing surface formed (R through groove 21 and apertures 27 into the sump.
Above the elevated portion of fin 65, door 41 is in
on end wall 22% The opposed bearing surfaces on the
clined inwardly beneath work plate 31 and at its free edge
bracket and end wall bear against the opposite sides of
adjacent standard 34 door 41 is ?anged as at 69 to over;
feed dog carriers 15 and 16. The opposed bearing sur
lap an inner surface 7% of said standard. Door 41 is pro
faces 32:: and end wall 22 are best shown in FiG. 10 in
which the feed dog carriers do not appear for the sake 10 vided with a ?ange 71 to strengthen the door at this mar
ginal edge. Flange 65* and the raised portion 67 of fin
of clarity. V In its normal position, work palte 31 is also
65 cooperate with the standard'iié and the drainage groove
supported by a‘standard 34 arising from the front of
frame extension 19 forms a base or ?oor, standard 34
forms a front wall, and vertical end wall 22 of the
machine frame forms aside wall. To form a substan
'
.
Referring now to FIG. 18 it is seen that the two level
work plate 31 is supported for pivotal movement upon
the horizontal upper surface of bracket 32. The top
surface of bracket 32. is cut away (FIGS. 10 and 16)
along the edge adjacent ‘bearing surface 32a to form a 7
support surface or shoulder 72 which is inclined down
tially complete enclosure or compartment 3? for feed
wardly toward end wall 22. Tapped bores project down
mechanism 14», a rear wall plate 44}, a door $1 and a
wardly through shoulder 72 to receive screws 73 (FIG. '
sheet metal guard 74 are provided. While work plate 31
overlies compartment 39 it is especially to be understood
that door 41 and guard 74 (to be described) toge .er with
10) which fixedly secure a sheet metal guard 74 to
shoulder 72. Guard 74 projects from bracket 32 to an
outer edge 80 which overlies a shoulder 79 on end wall
22. Guard 74 thus overlies the space between the op
posed bearing surfaces on end wall 22 and bracket 32
above ‘feed dog carriers 15 and 16 and below work
work plate supporting bracket 32, de?ne the top wall of
the compartment and serve to intercept lubricant dis
charged from feed mechanism parts toward the under
side of the work plate as when the feed mechanism is 30 plate 31. Guard 74 completely overlies the space (FIG.
15) between the inner edge 75 of work plate 31 and
operated at high speed.
end wall 22 of the machine frame. The rear portion of
The rear wall plate 40 is secured to the back of machine
guard 74 is bent downwardly (FIG. 10) into a rear
frame 1 by screws 42, 43 and 44 and to bracket 32 by a
?ange "76 whose lower edge is inclined downwardly in
screw 45. At the outer margin of wall plate 49; bosses
a direction from end wall 22 to a terminal point 77 ly
47 and 43 support a pintle 49. Door 41 is similarly pro
ing against the rear surface 78 of bracket 32. The
vided on its vertical rear edge margin with a boss 59 to
side edge 30 (FIGS. 9 and 10) of guard ‘74 is likewise
receive pintle 49, to which the door is secured by set
‘bent into a downwardly projecting ?ange ‘whose lower
edge is inclined downardly from rear ?ange 76 toward
tween the bottom of counterbore 52 and boss 48. Ten 40 the front of the machine frame. The inclined lower
edge terminates at a terminal point 81 which overlies
sion of spring 53 constantly urges door 41 downwardly
screw 51. Within boss 5t)v is a counterbore 52 to accom
~ modate to a spring 53 which is under compression be
an inclined section 82 on shoulder 79. It. is believed
so that a latch pin 54 at the forward lower corner of the
apparent that oil or lubricant collected on the surfaces
door is yieldably held in engagement with a keeper as
of either of the downwardly projecting ?anges of guard
55 when the door is in closed relation, see FIGS. 1, 9, l2
74 will ilow downwardly to the respective lower edges
and 13. Keeper 55 comprises a plate held in a recess 57
of the ?ange and thence downwardly along the lower
of the machine frame as by screws 58. A bore in keeper
edegs to the respective terminal points. From terminal
plate 55 present beveled'edges 59 and 60 over which,
point 77 oil is transferred to the rear surface of bracket
similarly beveled latch pin 4-7 rides, as when the door is
32 and flows downwardly along the surface to the bot
opened or shut. When door 41 is shut, latch pin 54 is
in engagement with beveled edge 6% and extends into a 50 tom of the feed mechanism compartment. Oil trans
ferred to terminal point 81 drops from the point'onto
clearance hole 61 in machine frame 1. Under tension of
wardly therefrom with its maximum width terminating
inclined shoulder 82 and thence downwardly along end
wall 22 to lubricate the bearing surface between feed
dog carrier 15 and end wall 22.
The primary purpose of guard 74 is to intercept lubri
cant discharged toward the space between inner edge
75 of work plate 31 and end wall 22. Todrain any
lubricant which may collect on the upper surface of
at an apex 63 approximately central to the width of feed
the guard 74-, the upper surfaces of sheet metal guard '
spring 53, door 41 is held ?rmly in its closed relation but
is readily yieldable under manual pressure upward to re
lease latch pin 54 so that the door may be opened for
access to feed mechanism 14.
Rear end wall plate 41} is provided with a ?n 62 ex~
tended from the inner wall surface and inclined down
mechanism compartment 39. Thus, the outer edge of 60 '74 are inclined (FIG. 10) in two sections connected
by a centrally located step. Lubricant which is col
?n 62 is inclined downwardly from its ends toward apex
lected may flow from the upper surface of guard 74
63. At one side a narrowed portion 64 of ?n 62 ex
either outwardly over edge 84} or through bores 83
tends into drainage groove 23 above mentioned. In a
(PEG. 8) which pass through the guard at the step.
similar manner to the arrangement of ?n as on rear end
wall plate 49, door 41 is provided with a fin 65, with its 65 Lubricant passing through bores 83 ?ows down bearing
surfaces 32a between this surface and the adjacent feed
maximum width substantially central of the door and ter
dog carrier 16. The inner side edge 75 of work plate
minating in an apex 66. At one end, ?n 65 merges with
31 is cut back as at 75:: (FIGS. 8 and 15) and the front
boss 50 (see FIG. 11) and at its other end is elevated
portion of guard 74 is projected upwardly as at 74a’
as at 67 so that it lies within a drainage groove 63 in
70 to completely ?ll this space, the upper surface of guard
standard 34- when door 41 is closed, see FIGS. 2 and 3.
74- at section 74a being substantially coplanar with the
Between these ends the inner edge of ?n 65 is inclined
upper surface of the two level work plate 31 adjacent
downwardly toward the apex 66.
guard section 74a.
Lubricant discharged from the feed mechanism may be
- Partly overlying a shoulder 79 on end wall 22, is the
intercepted and collected by rear wall plate 40 and door 75 distal edge or ?ange 8d of guard plate 74. This edgei
mu.
5
8t’? is inclined forwardly downwardly to a point 81 be
neathwhich is a surface 82 downwardly inclined to an
a ?ange 76 terminating in point 77, contiguous to surface
78 of bracket 32; a downwardly inclined ?ange compris
edge coincident with the vertical surface of end wall 22,
ing distal edge 8t) of guard plate 75,, terminating in point
see FIGS. 8, 9 and 10.
Between machine frame extension 19 and standard 34.
31 overlying inclined surface 82', inclined channel 94
in standard 34»; and ?n 10% secured to shield 97, the edge
is interposed a plate 87 which is interchangeable with
or margin 98 of which overlies inclined surface 95 ex
tending from channel 94. Oil gravitating on surface 22
similar plates of different thickness so that substitution of
passes directly into drainage groove 21 except where it is
one plate for another provides for supporting work plates
obstructed at areas where surfaces 88 and 89 engage
in slightly different planes to meet various requirements.
On the side of standard 34 opposed to end wall 22, 10 surface 22. The diverting effect at these areas, however,
is only slight and drainage is suitably directed by surfaces
separate surfaces 33 and 89 are provided, and these en
gage the surface of wall 22 when the standard 34 and its
base plate 87 are secured in place by screws as 9% and
91. Between these surfaces 88 and $9 and opposed to
the wall 22 is a channel 92 communicating with groove
21. Thus, held by screws f0 and 93., the upper part of
standard 34 presents, in spaced relation, and opposed to
surface 22, a surface 93 intercepted by a shallow channel
94 inclined downwardly toward the interior of feed mech
anism compartment 39. The lower side wall of channel
94, in a widened surface 95, extends to channel 92.
Secured to machine frame 1 by screws as ‘96, is a thin
metal shield 97, partly closing mechanism compartment
10 and havingone edge‘ or margin 98 thereof extending
95, while between these areas oil on surface 22 passes
through channel 92..
The arrangement of barriers forming the feeding mech
anism compartment, with the ducts and shields described,
is effective to prevent objectionable transfer of lubricant
to areas where it would contact the work, and it is to be
noted that advantages derived are achieved without re
course to the expedient of combining a compartment door
and a Work plate in a single cumbersome element.
Having thus described my invention, what I claim is:
1. In a sewing machine, a machine frame de?ning a
'main mechanism compartment having front and rear side
walls and a feeding mechanism compartment at one end
across the space between machine frame surface 22 and 25 of said frame, an end wall in said frame extending be‘
tween said side walls and forming a partition between
the opposing surface of standard 34, that is, the surface
said compartments, said end wall having a plurality of
which is crossed by channel 94. Secured to the outwardly
drainage ducts extending therethrough inclined down
and downwardly inclined inner surface 99 of shield 97 is
wardly from said feeding mechanism compartment for
a ?n 10!}, extending from edge 98 of shield 97, and thence
30 conducting lubricant from the bottom of said feeding
leading into mechanism compartment 13.
Flow of lubricating oil from a source of supply to feed
mechanism 14 and thence eventually to sump 9, takes
place as follows: Oil at bearing bore 29 passes into duct
mechanism compartment into said main mechanism com
partment, one side wall of said frame having an exposed
face formed with a groove having a lower wall extending
present various depending p ints, and suitably disposed
'said end wall and extending outwardly along said base
inwardly and downwardly from said face and inclined
28, thence to hearing bore 12, thence to spiral groove
39, and thence» to various elements of feed mechanism 35 downwardly to said end wall and said feeding mechanism
compartment to collect lubricant from said face and to
14. Lubricant in addition to that delivered from duct
conduct lubricant into said feeding mechanism compart
28. ?ows from a supply of lubricant furnished needle car
ment, and a wall plate mounted on said frame overlying
rier pivotal support 83 and mechanism (not shown) for
'the portions of said exposed face and said groove adjacent
actuating needle carrier 84», thence drains from machine
frame surface 85 to inclined surface 82, to the face of 40 said end wall and projecting beyond said end wall to de
line a wall of said feeding mechanism compartment.
end wall 22, and thence onto feed mechanism 14-.
2. In a sewing machine having a machine frame, a
Excess oil from the feed mechanism is partly dis
feeding mechanism compartment at one end of said frame
charged, as from moving elements, in the form of spray
comprising an end wall on said end of said frame, a. base
and partly drains to stationary surfaces contiguous to
moving parts from whence it gravitates more or less 45 extending from said frame at the bottom of said wall, a
standard extending upwardly from the front portion of
directly into sump 9. By reference to FIG. 2 it will be
said base, a rear wall plate overlying the rear face of
observed that vertical planes of contact occur in lateral
said frame and extending outwardly from said end wall,
support of certain elements of feed mechanism 14, viz.,
means de?ning a top wall extending from said rear wall
between surface 22 and feed dog carrier 15; between
plate toward said standard, a door mounted for pivotal
surface 32a and feed dog carrier 15; between feed dog
movement about a vertical axis upon the outer end of
‘carriers 15 and 15; between feed dog carrier 16 and link
said rear wall plate for movement to and from a closed
17; and between links 17 and 18. It is in these planes
position wherein said door closes the space between said
primarily that lubricant is discharged toward the under
side of work plate 31 from feed mechanism 1d when it is 55 rear wall plate, said top wall de?ning means, and said
standard, and a work plate pivoted on a vertical axis
being operated at high speed. It is important that this
above said means de?ning said top wall.
discharged lubricant be intercepted in its approach toward
3. in a sewing machine having a machine frame a feed
the underside of the work plate 31 because vibration of
ing mechanism compartment at one end of said frame
the work plate moves the lubricant to the edge of the
plate where it would be taken up by the material of the 60 comprising an end wall on said end of said frame, a base
extending from said frame at the bottom of said wall, said
work. Barriers are therefore interposed between the
end wall being formed with drainages ducts for conduct
feed mechanism 14 and the rworkpplate 31 including work
ing lubricant from the bottom of said feeding mechanism
. plate bracket 32, inwardly inclined wall 36 of door 41,
compartment into said machine frame, a standard extend
and sheet metal guard '74. See FIGS. 2, 8 and 9.
ing upwardly from the front portion of said base, a rear
The several barriers above indicated and serving to
65 wall plate overlying the rear face of said frame adjacent
form a feed mechanism enclosure or compartment, also
and inclined channels and surfaces which are effective to
prevent objectionable escape of oil to exterior areas.
These oil directing surfaces, channels and'points from
which draining oil is discharged to appropriate areas, in
clude channels 23, '25 and 68; fin 62 extending from wall
plate 49 and terminating in point 63 overlying depres
‘from said end wall, means defining a top wall extending
‘ from said rear wall plate toward said standard, a door piv
.oted on said plate for movement to and from a closed posi
tion wherein said door closes the space between said plate,
said top wall de?ning means and said standard, and a
work plate mounted for. pivotal movement about a ver
tical axis and overlying said top wall, said machine frame
having drainage grooves formed in its front and rear faces,
in point 66 overlying depression 2%; guard plate 74 having 75 said grooves sloping upwardly from said end Wall to con
sion 28; ?n 65 extending from door 41 and terminating
3,079,881
7
8
duct lubricant from said faces, into said feeding mecha
nism compartment.
of said feeding mechanism compartment, the improve
4. In a sewing machine having a machine frame, a.
feeding mechanism compartment at one end of said frame,
and an end wall mounted on said frame and forming a
partition between said compartment and said frame, the
improvement which comprises a rear wall plate at the
back of said compartment overlying a portion of the rear
face of said frame and the bottom of said compartment
ment which comprises a shield on said frame closing a
front portion’of said mechanism compartment, said shield
having a portion overlying the space between said standard
and said end wall to intercept lubricant discharged from
said feeding mechanism toward said space, and a tin
arranged beneath said shield sloping downwardly from
the edge of said shield overlying said space to conduct
lubricant from said shield into said mechanism compart- -
~
and forming a rear wall of said compartment, a drainage 10 ment.
it). In a sewing machine having a machine frame feed
groove formed in the rear face of said frame extending
ing mechanism operatively supported upon said frame
beneath said rear wall plate and inclined upwardly from
at one end thereof, of end wall at said one end of said
said feeding mecahnism compartment at said end wall,
frame having an outwardly projecting shoulder thereon
and a ?n on the inner surface of said plate'sloping down
and a bearing surface extending downwardly from said
shoulder, a bracket ?xedly mounted upon said end wall
and having a bearing surface thereon located in opposed
merit.
spaced relationship, with the bearing surface on said end
. v5. In a sewing machine having a machine frame, a
wall, the opposed bearing surfaces of said end wall and
feeding mechanism compartment at one end of said frame
having a lubricant receiving recess at its bottom, and an 20 said bracket ‘slidably receiving portions of said feed mech
end wall mounted on said frame and forming a partition
anism therebetween, a guardv ?xedly secured upon said
bracket and projecting from said bracket across the space
between said compartment and, said frame, the improve
wardly therefrom and extending into said drainage groove
to conduct lubricant from said plate into said compart
ment which. comprises a rear Wall plate at the back of
between said bearing surfaces to overlie said shoulder on
said compartment overlying a portion of the rear face of
said frame and the bottom of said compartment and
said end wall, and a work plate pivotally mounted on
said bracket for movement to and from an operative posi
forming a rear wall of said compartment, and a ?n on
tion above said guard. '
>
'
11. In a sewing machine having a frame, feeding mech
the inner face of said plate increasing in width from both
anism operatively supported upon said frame at one end
ends of said plate toward a central apex and sloping down
thereof, an end wall at said one end of said frame having
wardly from said plate to conduct lubricant from said
plate into the central portion of said compartment.
30 an outwardly and downwardly inclined shoulder thereon
and a bearing surface extending downwardly from said
,6. In a sewing machine having a machine frame, a
shoulder, a bracket ?xedly mounted upon said end wall
‘feeding mechanism compartment at one end of said frame
and having a bearing surface thereon located in opposed
having a lubricant receiving recess in its bottom, and an
spaced relationship with said bearing surface on said end
end wall mounted on said frame and forming a partition
between said compartment and said frame, a rear wall 35 wall, the opposed bearing surfaces of said end wall and
said bracket slidably receiving portions of said feed mech
plate at the back of said compartment overlying a portion
of the rear face of said frame and the bottom of said com
partment and forming a rear wall of said compartment,
and a ?n on the inner face of said plate sloping down
anism therebetween, a shoulder on said bracket extending
from said bearing surface on said bracket in a direction
away from said end wall and de?ning the upper edge of '
wardly therefrom, the inner edge of said ?n sloping down 40 said bearing surface on said bracket, a guard ?xedly
wardly from its ends toward its center to conduct lubricant
from said plate into the central portion of said compart
ment.
7. in a sewing machine having a machine frame, a
feeding ‘mechanism compartment at one end of said frame, 45
mounted upon the shoulder on said bracket, a horizontal
upper surface on said bracket elevated above said shoulder
on said bracket and a work plate supported upon said
upper surface of said bracket for pivotal movement about
a vertical axis. a
tion between’ said compartment and said frame, and a
12. In a sewing ‘machine having a frame, feeding mech
anism operatively supported upon said frame at one end.
work plate above said compartment, the improvement
thereof, an end wall at said one end of said frame having
an end wall mounted on said frame and forming a parti
an outwardly and downwardly inclined shoulder thereon
work plate having a surface sloping downwardly toward 50 and a bearing surface extending downwardly from the
said' mechanism compartment, and a guard disposed
outer edge of said shoulder, a bracket ?xedly mounted
upon said end wall and having a bearing surface thereon
beneath said work plate adjacent said end wall to inter
located in opposed spaced relationship with said bearing
cept lubricant directed upwardly from mechanism in said
surface on said end wall, the opposed bearing surfaces
compartment, said guard having a ?ange above said shoul
which comprises a shoulder on said end wall below said
on said end wall and said bracket'slidably receiving por
tions of said feeding mechanism therebetween, a shoulder
on said bracket extending from said bearing surface on
siad bracket in a direction away from said end wall and
‘feeding mechanism compartment at one end of said frame,
de?ning the upper edge of said bearing surface on said
an end wall mounted on said frame and forming a parti
tion between said compartment and said frame, and a 60 bracket, a sheet metal guard ?xedly mounted upon the
der to direct intercepted lubricant onto said surface for
return into said compartment.
8. In a sewing machine having a machine frame, a
work plate above said compartment, the improvement
shoulder on said bracket and projecting therefrom across
which comprises a shoulder on said end wall below said
the space between said opposed bearing surfaces to ter
minate in a downwardly projecting ?ange extending along
work plate having a surface sloping downwardly toward
and overlying said shoulder on said end wall, and a work
said compartment, a guard disposed beneath said work
plate adjacent to said end wall and arranged to intercept 65 plate mounted on said bracket for pivotal movement about
a vertical axis to and from an operative position above
lubricant directed upwardly from mechanism in said com
said guard.
partment, and a ?ange on said guard depending from
the edge thereof having its lower edge inclined down
13. In a sewing machine having a machine frame,’
feeding mechanism operatively supported upon said frame
}wardly from the rear end thereof to a low point overly
ing said surface to direct intercepted lubricant onto said 70 at one end thereof, an end wall at said one end of said
surface for return into said compartment.
frame having an outwardly projecting shoulder’ thereon
and a bearing surface extending downwardly from the
9. In a sewing machine‘having a machine frame, a
outer edge of said shoulder, a bracket ?xedly mounted
‘mechanism compartment in said frame, a feeding mecha
upon said end wall and having a bearing surface thereon
nism compartment at one end of said frame, an end wall
located in opposed spaced relationship with said bearing
,mounted on said frame and forming a partition between
said compartments, and a standard forming a front wall
surface on said end wall, the opposed bearing surfaces of
3,079,881
10
said end wall and said bracket slidably receiving portions
of said feed mechanism therebetween, a shoulder on said
bracket extending ‘in a direction away from said end wall
and de?ning the upper edge of said bearing surface on
said bracket, a guard ?xedly mounted upon one of said
shoulders and extending across the space between said
end of said compartment, said standard having a groove
inclined downwardly along said one side of said standard
toward said rear wall and opening into said compartment,
and a fin sloping downwardly from the inner side of said
5 door extending into said groove.
opposed bearing surfaces to overlie the other of said
shoulders, an upper surface on said bracket elevated above
said shoulder on said bracket, and a work plate supported
upon said upper surface for pivotal movement above a
vertical axis.
14. In a sewing machine as de?ned in claim 13, both of
said shoulders being inclined downwardly toward said
bearing surfaces, a downwardly projecting ?ange extend
ing along the edge of guard above said other of said shoul 15
ders, said guard having a plurality of bores therethrough
between the bearing surfaces of said shoulders.
15. In a sewing machine as de?ned in claim 14, a lower
edge on said ?ange inclined downwardly to a terminal
point located above said other of said shoulders.
16. In a sewing machine having a machine ‘frame, a
feeding mechanism compartment at one end of said frame,
and a standard forming a portion of the front Wall of
said compartment, the improvement which comprises a
door hingedly mounted on the rear wall of said compart 25
ment and extending to and overlying one side of said
standard and the bottom of said compartment to close the
References Cited in the ?le of this patent
UNITED STATES PATENTS
1,189,466
1,423,243
1,876,708
2,157,371
2,284,474
Mekeel ________________ __ July 4,
Mo?att ______________ __ July 18,
McPherson ___________ __ Sept. 13,
Weiss ________________ __ May 9,
Peets et a1 ____________ __ May 26,
1916
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Sauer ________________ __ June 16,
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1942
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Sauer et a1 ____________ __ May
Peets _________________ __ July
Wallenberg et a1. ______ __ Feb.
Ritter ________________ _._ Feb.
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Hess ________________ __ Sept.
1952
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13,
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11,
FOREIGN PATENTS
698,010
Great Britain ____________ __ Oct. 7, 1953
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