US2836133A - Railway type sewing machine - Google Patents

Railway type sewing machine Download PDF

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Publication number
US2836133A
US2836133A US476144A US47614454A US2836133A US 2836133 A US2836133 A US 2836133A US 476144 A US476144 A US 476144A US 47614454 A US47614454 A US 47614454A US 2836133 A US2836133 A US 2836133A
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United States
Prior art keywords
carriage
sewing machine
stitching
switch
motor
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Expired - Lifetime
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US476144A
Inventor
Ralph S Gamble
Leland F Remington
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CURTIS AND MARBLE MACHINE Co
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CURTIS AND MARBLE MACHINE Co
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Priority to US476144A priority Critical patent/US2836133A/en
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Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B23/00—Sewing apparatus or machines not otherwise provided for
    • D05B23/005—Sewing machines specially adapted for binding or uniting carpets
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B73/00—Casings
    • D05B73/04—Lower casings
    • D05B73/12—Slides; Needle plates

Definitions

  • tant feature of our invention relates to the provision of means to cause a sewing carriage to travel between predetermined limits only, and also to cause the sewing head to stitch the fabric between separately predetermined limits and during travel of the carriage in one direction only.
  • Another object is to provide means for automatically starting the sewing operation at a selected point in the continued travel of the carriage.
  • FIG. 1 is a plan view of our improved machine
  • Fig. 2 is a sectional end elevation, taken along the line 2-2 in Fig. 1;
  • Fig. 3 is a front view of the sewing carriage, with the supporting frame omitted and looking in the direction of the arrow 3 in Fig. 2;
  • Fig. 4 is a bottom view of the machine on a somewhat enlarged scale and looking in the direction of the arrow 4 in Fig. 3;
  • Fig. 5 is a rear view of certain parts, looking in the direction of the arrow 5 in Fig. l;
  • Fig. 6 is a diagrammatic view of the electrical wiring and controls.
  • our improved railway sewing machine comprises a base or frame 10 on which a sewing carriage 12 is supported by flanged guide-rolls lei, secured to cross shafts 15 (Fig. 2).
  • the power for moving the carriage is supplied by a motor M mounted on the carriage 12 and having a driving pulley 16 on its armature shaft 17.
  • a belt 20 connects the driving pulley 16 to a pulley 22 (Fig. 4) which is secured to the worm shaft 24 of a speed-reduction unit 25.
  • This shaft 24 has a worm-and-gear connection to a cross shaft 26, which in turn is connected by bevel gears 27 and 28 to one of the cross shafts 1.5 previously described.
  • the motor M is of reversible type and may be caused to rotate the shaft 15 and rolls 14 to move the carriage 12 in either desired direction.
  • e belt 2i ⁇ (Figs. 2 and 3) also drives a pulley 3Q loosely mounted on the drive shaft 31 of a stitching head 33, which head is of commercial type and forms no part of our present invention.
  • the pulley has a friction member or plate 32 as- 2,836,133 Patented May 27, 1958 i3 sociated therewith and rotated thereby.
  • a non-magnetic disc 33 is keyed to the shaft 31 and is slidable thereon.
  • a friction ring or pad 34 is secured to the face of the disc 33 in position to engage the friction plate 32.
  • a magnetic ring 35 is loosely mounted on a hub portion of the member 33 and is held from rotation by a fixed pin 36. One end of the hub portion also engages the disc 32, and the outer end of the drive shaft 31 is supported in a bearing 37.
  • the pieces of cloth C and C which are to be stitched together are mounted on pairs of holding pins (Figs. 1 and 2), which pins are fixed in plates %1 carried by brackets 42. These brackets are slidable on an angle iron or rail 43 supported on stands 44 secured to an end plate 45 (Fig. 1) of the fixed frame or base 1'3.
  • the brackets 42 may be adjusted as desired along the rail 43 to accommodate pieces of cloth of different widths, and may be secured in adjusted position by wing screws 47 (Fig. 2) engaging the angle iron 43.
  • the pin-holding plates 41 (Fig. l) are slotted as indicated at 49 to permit the starting run and over-run of the stitching needle N.
  • a limit switch 5% (Figs. 1 and 5) controls the travel of the carriage 12, and a micro-switch 52 controls the magnetic clutch which starts and stops the stitching mechanism.
  • the micro-switch 52 is normally closed but is opened when a roll 53 (Fig. 5) is engaged and lifted by a cam plate 54 which is supported on a fixed rod 55.
  • the cam plate 54 may be adjustably secured on the rod 55 by screws 56.
  • the limit switch 50 has a roller as which is engaged by stop plates or dogs 61 and 62 which are also adjustably mountedon the fixed rod 55.
  • a hand-operated drum switch (Fig. 1) having a handle 71.
  • This drum switch acts as a reversing switch for the motor M and the handle 71 has forward, reverse and neutral positions.
  • FIG. 6 Illustrative electrical connections are shown in Fig. 6, in which a power wire 8'! is connected through a terminal plate 81 to double contacts in the limit switch 50.
  • a second power wire 82 is connected through the plate 81 to the drum switch 70.
  • the motor M has a forward connection to the drum switch 70.
  • Wires 8d and 85 connect reverse terminals in the drum switch 7t; to the limit switch 50, so that the power wires 3% and 82 will be reversely connected to the motor M according to the angular position of the limit switch 50 as determined by the dogs 61 and 62.
  • One end of the magnetic clutch coil or ring 35 is connected to the micro-switch 52 and through normally closed contacts 86, a rectifier 87 and a wire 53 to the power wire 80.
  • the other end of the coil 35 is connected through wires 90 and 91 to one of the motor terminals in the drum switch '70 when the motor is running forward but is not connected through the motor when the motor operates in a reverse direction.
  • the carriage 12 When the stitching operation is to be started, the carriage 12 will be at the left in Fig. 1 and the micro-switch 52 which controls the stitching mechanism will be opened by the cam plate 54. The operator then throws the hen dle 71 to the right in Fig. 1, thus setting the drum switch '70 to drive the motor M forward and to cause the carriage 12 to travel to the right in Fig. 1. As the stitching needle N approaches the edge of the cloth, the microswitch roll 53 drops off of the cam plate 54 and the con- During the return movement, the'co'ntacts 86 in the 1 micro-switch 52 will be closed but there will be no power connections through the drum switch, so that the stitching mechanism cannot operate during the return travel of the carriage.
  • Our improved machine thus requires an absolute mini mum of attention by the operator, and the stitching operation may also be performed at higher speed, as the start and stop of the stitching istentirely controlled automatically.
  • a base frame a stitch- 7 ing carriage, a head provided with stitching mechanism and mounted on said carriage, a reversible'motor connected to move said carriageand to separately drive said stitching mechanism and including a clutchtbetw'een the motor and the stitching mechanism, and automatic means to shift said clutch to'operative condition at a predetermined intermediate point between the ends of the operative travel of the carriage and during the continued travel of the carriage to eifect stitching during a selected portion of the operative run only of the carriage and said automatic means being also efiective to shift the clutch to inoperative position before the return movement of the carriage begins.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Description

R s. GAMBLE ET AL. 2,836,133
RAILWAY TYPE SEWING MACHINE May 27, 1958 4 Sheets-Sheet 1 Filed Dec. 20, 1954 IN VEN TOR.
RALPH S. GAMBLE LELAND F. REMINGTON.
May 1958 R. s. GAMBLE ETAL 2,836,133
RAILWAY TYPE SEWING MACHINE 4 Sheets-Sheet 2 Filed Dec. 20, 1954 lll il mlw INVENTOR. RALPH s. GAMBLE LEL-AND F. REMINGTON.
y. 1958 R. s. GAMBLE ETAL 2,836,133
RAILWAY TYPE SEWING MACHINE Filed Dec. 20, 1954 4 Sheets-Sheet :5
0" IN VEN TOR. RALPH S. GAMBLE LELAND F. REMlNGTON y 1958 R. s. GAMBLE ETAL 2,836,133
RAILWAY TYPE SEWING MACHINE Filed Dec. 20, 1954 4 Sheets-Sheet 4 .fi D 2 m 8 8 a I o 1 Q l V a d A It INVENTOR. 2
RALPH s. GAMBLE LELAND F. REMINGTON.
ZKML 7 States 2,sss,1ss RAILWAY TYPE sewiNo MACHINE Ralph S. Gamble, Oxford, and Leland F. Remington,
Worcester, Mass, assignors to Curtis & Marble Machine Company, Worcester, Mass, a corporation of Massachusetts Application December 20, 1954, Serial No. 476,144 2 Claims. (Cl. 1122) tant feature of our invention relates to the provision of means to cause a sewing carriage to travel between predetermined limits only, and also to cause the sewing head to stitch the fabric between separately predetermined limits and during travel of the carriage in one direction only.
Another object is to provide means for automatically starting the sewing operation at a selected point in the continued travel of the carriage.
Our invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.
A preferred form of the invention is shown on the drawings, in which Fig. 1 is a plan view of our improved machine;
Fig. 2 is a sectional end elevation, taken along the line 2-2 in Fig. 1;
Fig. 3 is a front view of the sewing carriage, with the supporting frame omitted and looking in the direction of the arrow 3 in Fig. 2;
Fig. 4 is a bottom view of the machine on a somewhat enlarged scale and looking in the direction of the arrow 4 in Fig. 3;
Fig. 5 is a rear view of certain parts, looking in the direction of the arrow 5 in Fig. l; and
Fig. 6 is a diagrammatic view of the electrical wiring and controls.
Referring to the drawings, our improved railway sewing machine comprises a base or frame 10 on which a sewing carriage 12 is supported by flanged guide-rolls lei, secured to cross shafts 15 (Fig. 2).
The power for moving the carriage is supplied by a motor M mounted on the carriage 12 and having a driving pulley 16 on its armature shaft 17. A belt 20 connects the driving pulley 16 to a pulley 22 (Fig. 4) which is secured to the worm shaft 24 of a speed-reduction unit 25. This shaft 24 has a worm-and-gear connection to a cross shaft 26, which in turn is connected by bevel gears 27 and 28 to one of the cross shafts 1.5 previously described.
The motor M is of reversible type and may be caused to rotate the shaft 15 and rolls 14 to move the carriage 12 in either desired direction.
e belt 2i} (Figs. 2 and 3) also drives a pulley 3Q loosely mounted on the drive shaft 31 of a stitching head 33, which head is of commercial type and forms no part of our present invention.
The pulley has a friction member or plate 32 as- 2,836,133 Patented May 27, 1958 i3 sociated therewith and rotated thereby. A non-magnetic disc 33 is keyed to the shaft 31 and is slidable thereon. A friction ring or pad 34 is secured to the face of the disc 33 in position to engage the friction plate 32.
A magnetic ring 35 is loosely mounted on a hub portion of the member 33 and is held from rotation by a fixed pin 36. One end of the hub portion also engages the disc 32, and the outer end of the drive shaft 31 is supported in a bearing 37.
When the magnet ring 35 is energized, the plate 32 and magnet ring are drawn toward each other, and the magnet ring forces the friction pad 34 against the plate 32, thus causing the drive shaft 31 to be rotated. This friction clutch is commercial and illustrative only.
The pieces of cloth C and C which are to be stitched together are mounted on pairs of holding pins (Figs. 1 and 2), which pins are fixed in plates %1 carried by brackets 42. These brackets are slidable on an angle iron or rail 43 supported on stands 44 secured to an end plate 45 (Fig. 1) of the fixed frame or base 1'3.
The brackets 42 may be adjusted as desired along the rail 43 to accommodate pieces of cloth of different widths, and may be secured in adjusted position by wing screws 47 (Fig. 2) engaging the angle iron 43.
The pin-holding plates 41 (Fig. l) are slotted as indicated at 49 to permit the starting run and over-run of the stitching needle N.
A limit switch 5% (Figs. 1 and 5) controls the travel of the carriage 12, and a micro-switch 52 controls the magnetic clutch which starts and stops the stitching mechanism.
The micro-switch 52 is normally closed but is opened when a roll 53 (Fig. 5) is engaged and lifted by a cam plate 54 which is supported on a fixed rod 55. The cam plate 54 may be adjustably secured on the rod 55 by screws 56. The limit switch 50 has a roller as which is engaged by stop plates or dogs 61 and 62 which are also adjustably mountedon the fixed rod 55.
The over-all operation of the machine is controlled by a hand-operated drum switch (Fig. 1) having a handle 71. This drum switch acts as a reversing switch for the motor M and the handle 71 has forward, reverse and neutral positions.
Illustrative electrical connections are shown in Fig. 6, in which a power wire 8'!) is connected through a terminal plate 81 to double contacts in the limit switch 50. A second power wire 82 is connected through the plate 81 to the drum switch 70. The motor M has a forward connection to the drum switch 70. Wires 8d and 85 connect reverse terminals in the drum switch 7t; to the limit switch 50, so that the power wires 3% and 82 will be reversely connected to the motor M according to the angular position of the limit switch 50 as determined by the dogs 61 and 62.
One end of the magnetic clutch coil or ring 35 is connected to the micro-switch 52 and through normally closed contacts 86, a rectifier 87 and a wire 53 to the power wire 80. The other end of the coil 35 is connected through wires 90 and 91 to one of the motor terminals in the drum switch '70 when the motor is running forward but is not connected through the motor when the motor operates in a reverse direction.
When the stitching operation is to be started, the carriage 12 will be at the left in Fig. 1 and the micro-switch 52 which controls the stitching mechanism will be opened by the cam plate 54. The operator then throws the hen dle 71 to the right in Fig. 1, thus setting the drum switch '70 to drive the motor M forward and to cause the carriage 12 to travel to the right in Fig. 1. As the stitching needle N approaches the edge of the cloth, the microswitch roll 53 drops off of the cam plate 54 and the con- During the return movement, the'co'ntacts 86 in the 1 micro-switch 52 will be closed but there will be no power connections through the drum switch, so that the stitching mechanism cannot operate during the return travel of the carriage.
From'the foregoing description, it will be clear that the dogs 61 and 62, determine the limits of travel of the carriage 12 in both directions and stop the motor M whenever either dog is engaged. Furthermore, the cam plate 54 automatically determines the start of the stitching operation, and the described connections are such that the micro-switch 521and .clutch coil 35 are'out of circuit during the return travel of the carriage.
Our improved machine thus requires an absolute mini mum of attention by the operator, and the stitching operation may also be performed at higher speed, as the start and stop of the stitching istentirely controlled automatically.
Having thus described our invention and the advan tages thereof, We do not wish to be limited to the details herein disclosed, otherWise'than as set forth in the claims, but what we claim is: a
1. In a railway sewing machine, a base frame, a stitching carriage mounted to be moved along said frame, a head provided with stitching mechanism and mounted on said carriage, means to move said carriage between predetermined limits on said frame, separate clutch-controlled driving mechanism for said stitching mechanism," and automatic means to render the clutch of said stitch=- ing driving mechanism operative to drive said stitching mechanism at a predetermined intermediate point between the ends ofthe operative run only of said carriage and during thdcontinued travel of the stitching carriage. I
2. In a railway sewing machine, a base frame, a stitch- 7 ing carriage, a head provided with stitching mechanism and mounted on said carriage, a reversible'motor connected to move said carriageand to separately drive said stitching mechanism and including a clutchtbetw'een the motor and the stitching mechanism, and automatic means to shift said clutch to'operative condition at a predetermined intermediate point between the ends of the operative travel of the carriage and during the continued travel of the carriage to eifect stitching during a selected portion of the operative run only of the carriage and said automatic means being also efiective to shift the clutch to inoperative position before the return movement of the carriage begins. a 7
References Cited in the file of this patent UNITED STATES PATENTS 7 2,337,413 Remington Dec. 21, 1943 2,593,196 Rotherham Apr. 15, 1952"
US476144A 1954-12-20 1954-12-20 Railway type sewing machine Expired - Lifetime US2836133A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3009428A (en) * 1959-01-30 1961-11-21 Curtis Marble Machine Co Sewing machine
DE1267524B (en) * 1959-05-02 1968-05-02 Spinnerei Und Webereien Zell S Machine for the production of sack-shaped fabrics
US3448706A (en) * 1966-11-21 1969-06-10 Clark Co Inc David Variable repetitive pattern sewing machine
US3683831A (en) * 1969-08-18 1972-08-15 Ernest M Junkins Automatic guiding apparatus for sewing machine
US4327653A (en) * 1980-01-21 1982-05-04 Levi Strauss & Co. Continuous sewer
US4470361A (en) * 1982-03-02 1984-09-11 Smith Donald L Railway sewing system
US4700642A (en) * 1985-04-24 1987-10-20 Young Engineering Inc. Joining continuous lengths of web materials
US20100242821A1 (en) * 2009-03-27 2010-09-30 Brother Kogyo Kabushiki Kaisha Multi-needle sewing machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2337413A (en) * 1942-08-15 1943-12-21 Curtis & Marble Machine Compan Variable feed mechanism for railway sewing machines
US2593196A (en) * 1947-10-25 1952-04-15 Hermas Machine Company Railway sewing machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2337413A (en) * 1942-08-15 1943-12-21 Curtis & Marble Machine Compan Variable feed mechanism for railway sewing machines
US2593196A (en) * 1947-10-25 1952-04-15 Hermas Machine Company Railway sewing machine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3009428A (en) * 1959-01-30 1961-11-21 Curtis Marble Machine Co Sewing machine
DE1267524B (en) * 1959-05-02 1968-05-02 Spinnerei Und Webereien Zell S Machine for the production of sack-shaped fabrics
US3448706A (en) * 1966-11-21 1969-06-10 Clark Co Inc David Variable repetitive pattern sewing machine
US3683831A (en) * 1969-08-18 1972-08-15 Ernest M Junkins Automatic guiding apparatus for sewing machine
US4327653A (en) * 1980-01-21 1982-05-04 Levi Strauss & Co. Continuous sewer
US4470361A (en) * 1982-03-02 1984-09-11 Smith Donald L Railway sewing system
US4700642A (en) * 1985-04-24 1987-10-20 Young Engineering Inc. Joining continuous lengths of web materials
US20100242821A1 (en) * 2009-03-27 2010-09-30 Brother Kogyo Kabushiki Kaisha Multi-needle sewing machine
US8225728B2 (en) * 2009-03-27 2012-07-24 Brother Kogyo Kabushiki Kaisha Multi-needle sewing machine

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