US826275A - Carpet-sewing machine. - Google Patents

Carpet-sewing machine. Download PDF

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US826275A
US826275A US26587605A US1905265876A US826275A US 826275 A US826275 A US 826275A US 26587605 A US26587605 A US 26587605A US 1905265876 A US1905265876 A US 1905265876A US 826275 A US826275 A US 826275A
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wheel
carpet
stitch
needle
lever
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Dwight W Robinson
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    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B23/00Sewing apparatus or machines not otherwise provided for
    • D05B23/005Sewing machines specially adapted for binding or uniting carpets

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  • This invention relates to machines for stitching together lengths of carpet.
  • the class of machines to which the invention is particularly adaptable is the now well-known saddle type, which is designed to be hung upon and supported by the up wardly-presented edges of the strips of carpet to be united.
  • the needle has been confined in its reciprocation to a single horizontal plane, which resulted in a perfectly straight line of stitching, which in order to unite the adjacent edges of carpet had to penetrate both pieces of fabric at an appreciable distance from the edge of each.
  • the united piece was stretched out upon the floor, the double thickness of the fabric separated and spaced from that part which was to lie flat upon the floor by the straight line of stitching caused an undesirable hump or ridge.
  • this Ohjectionable factor is obviated and a more perfect and sightly union of the pieces of fabricis effected.
  • Figure 1 is a perspective of a carpet-sewing machine of this type provided with my improved needle-reciprocating attachment.
  • Fig. 2 is an enlarged perspective of the swinging needle-arm and its related parts looking in the opposite direction from that in Fig. 1.
  • Fig. 3 is a detail view showing the inner face of the driving gear-wheel and its relation to the needle-controlling lever and the powerpinion meshing therewith.
  • Figs. 4, 5,6, and 7 show the different types of stitch which may be made, as well as variations in the length of each.
  • Fig. 8 is a detail view from the opposite side of the machine from that shown in Fig. 1, showing the relation of the needle-controlling lever and the button or latch by means of which it may be held from vertical reciprocation.
  • Fig. 9 is an elevation of the circular cap 8 and connected parts and the gearwheel 5 with which it meshes.
  • Fig. 10 is an elevation showing the hinged portion of the rim of the circular cap.
  • the framework of the machine consists, essentially, of'two sections F and F, which are joined by the yoke Y and by the transverselyextending shaft S between the two sections.
  • the operator guides the machine by means of the handle 2.
  • the edges of carpet whose union is desired are thrust therebetween until their further upward progress is resisted by the yoke Y, or, more properly, the guide-piece 41, which dependsfroni the yoke, and the feed-roller 2, which is carried on a sleeve which incloses a part of the length of the shaft S directly over the space lyin between the sections F and F.
  • This feed-roller is serrated, so that as itis rotated the teeth engage in the edge of the carpet and advance it, its speed being predetermined with reference to the length of stitch desired.
  • a pulley 3 On the outer end of the shaft S, looking in the direction of Fig. 1, is fixed a pulley 3.
  • a belt or chain B travels over this to a small sprocket-wheel 37 on the face of the balance-wheel W, whichis carried upon the lower part of the section F of the frame.
  • the driving gear-wheel G (shown in detail in Fig. 3) is rotated by means of the crank C and causes the wheel L, which is carried on the inner e'nd of the shaft and meshes with it, to rotate.
  • the driving gear-wheel G also meshes with a wheel R, which is carried'by the upper end of a vertical shaft in the section F of the. frame.
  • the top of this wheel carries a circular cap 8, whose periphery is thinned to an extent suflicient to pass between the teeth of a gear-wheel 5, which is carried about the middle of the shaft S.
  • Both it and the feed-roller 2 are rigidly attached to a sleeve9, through which the shaft S passes,thus enabling the feed-roller and this gear-wheel to have movement independent ofthe speed of rotation of the shaft.
  • riphery of this cap preferably about onesixth, is cut away, so as to be independent of and removable from the rest of the periphery.
  • This portion 7 of the cap is hinged at one end at or just below its peripheral edge to the remainder of the cap, while the other end may be raised or lowered within the limits set by the size of the slot 14 and screw 15, so as to be continuous with the solid portion of the periphery or to terminate slightly below the same when dropped. from this position.
  • this arrangement is to regulate the speed with which the machine is operated and the fabric is advanced, and consequently the length of stitch at each reciprocation of the sewing mechanism. If this sector 7 is continuous with'the remainder of the periphery of the cap, it meshes with the gear-Wheel 5 and does not cause it to rotate at all. If, however, a stitch of ordinary length is desired, the slotted end is dropped to a lower position. As this portion passes through the gear-wheel 5 (the rotation of this cap, as shown in Fig. 1, being contra-clockwise) it serves to force the periphery of this wheel down and around the distance occupied by one of the teeth in its periphery, and consequently causes the feed-roller 2 to rotate so much more. If a still longer stitch is desired, the unhinged end of this sector is dropped still lower, so that as it engages in the gear-wheel 5 it throws it around still farther at each rotation.
  • the arm T is pivoted or hinged to the rear portion of the frame at 32 in such a way as to extend over the cap 8 with the cam-slot directly over said cap and with the pin 17 projecting upward therethrough from the surface of the cap 8. Because of the shape of this cam-slot an intermittent oscillatory motion is imparted to it upon the rotation of the cap 8 in the manner heretofore described.
  • Fig. 1 there is shown upon the section F of the frame a pair of horizontal track-bars 22, upon which oscillates the needlecarri er 23, from whose upper surface a pin 18 projects through the outer end of the slot in the arm T.
  • a reciprocating motion is imparted to the needlecarrier, from the inner face of whichthat is, proj ecting toward the center of the machine extends the needle 19, which is periodically driven lengthwise across the space bridged by the yoke Y and substantially beneath the yoke through the strips of carpet held therebetween. ment of the carrier the needle is drawn well away from this space.
  • this needle-carrier In the outer face of this needle-carrier is a vertical groove 20, in which reciprocates that portion of the needlecarrier which actually carries the needle, but which, except for its connection with the main body of the carrier, is not connected With the cam-slot in the lever T.
  • One portion A portion of the pe- On the extreme retroactive moveof this needle-holding part is also arranged to slide in a horizontal track or runway 24, which is carried by standard 24, whose base slidably engages in vertical shafts 39, bored in the frame-piece F.
  • This runway is also pivotally connected to and actuated by the end of the lever 27, through whose pivoted end passes the shaft S.
  • a spring which engages this fixed end operates to maintain this lever in a horizontal position when not under stress of the cam-piece 31, hereinafter described, and so that the lever 24 and the vertical slidable portion of the needle-carrier which it supports are kept at the upward limit of their possible movement.
  • This position is maintained during the halfrevolution ofthe actuating-crank C, the size of the intermediate gear-wheel being proportioned to this end.
  • a button In the outer face of the inclosing casing 39 of the gear-wheel G is a button, forming the head of an interfering pin or latch 42, which is horizontally slidable in a groove 42 and which when moved to the outer limit of its travel engages and holds down in its lowermost position the lever 27, so that as the needle-carrier continues to be reciprocated by the lever T, as heretofore explained, its
  • shuttle part 35 form no part of myinvention and as any one of several difierent' types are equally adaptable to a machine embodying my invention, I do not attempt to-describe the same.
  • What I claim is 1.
  • a carpet-sewing machine in combination with a yoke-shaped frame adapted to receive the edges of the pieces to be united between the depending portions thereof, a stitch-forming mechanism, a driving gearwheel actuating said stitch-forming mechanism, said gear-wheel having one face provided with a cam portion, and a lever fulcrumed at one end to a portion of the frame and connected to and partially supporting said stitch-forming mechanism with its other end, having a portion intermediate said ends adapted to be periodically contacted by the cam portion of said driving gear-wheel whereby the plane'of reciprocation of said stitchforming mechanism is changed after each reciprocation thereof, substantially as de scribed.
  • a driving gear-wheel for actuating the same, there being a cam portion on one face of said driving gear-wheel, a stitchforming mechanism deriving its actuation from said driving gear-wheel, and a lever pivotally connected at one end to said frame and at the other end to said stitch-forming mechanism, and serving to partially support the same, having an intermediate portion adapted to be periodically engaged by the cam portion of said driving gear-wheel, whereby said stitch-forming mechanism may be depressed from the position occupied by it with respect to the frame and the pieces of carpet on alternate strokes thereof, substantially as described.
  • a feedroller adapted to engage the edges of the carpet inserted between the parts of said frame and to advance the same therealong with respect to said edges, a driving gear-wheel adapted to actuate the same, one face of said driving gear-wheel being formed as a cam, a stitch-forming mechanism also depending upon said driving gear-Wheel for its actua tion, the needle carrying portion of said stitch-forming mechanism being vertically movable with respect to said frame, and a lever pivoted at one end to a fixed portion of said frame and at the other to said needlecarrying part of the stitch-forming mechanism, the center portion of said lever being provided with a bearing projection adapted -to be periodically engaged by the cam portion of said driving gear 'wheel to effect a depression of the needle-carrying portion of said stitch-forming mechanism after each alternate stroke, substantially as described.
  • a carpet-sewing machine in combination with a yoke-shaped frame adapted to receive the edges of carpet between depending portions thereof, a stitch-forming mechanism engaging transversely to the plane of the pieces of carpet inserted therebetween, a driving gear-wheel adapted for manual actuation, a complementary wheel meshing therewith whereby the actuation imparted by said driving gear-wheel is communicated to the stitch forming mechanism, and a pivoted lever partially supporting said stitchforming mechanism and adapted to be periodically engaged by an irregular portion of said driving gear-wheel and horizontally displaced from its position with respect to the frame and the pieces of carpet after each alternate stroke of said stitclrforming mechanism, substantially as described.
  • a driving gear-wheel provided with a cam portion on one surface
  • a feed-roller adapted to positively engage the edges of the carpet and advance the frame therealong
  • a wheel meshing with said driving gear-wheel whereby the actuation imparted by it is communicated to said feed-roller
  • a second driven wheel meshing with said driving gear-wheel
  • a stitch-forming mechanism receiving its actuation through said second wheel, a part of said stitch-forming mechanism being vertically movable with respect to the frame and the pieces of carpet
  • a lever supporting said portion of the stitch-formim mech anism on one end and pivoted at its other end to the frame, having an intermediate portion adapted to be contacted by said cam portion of the driving gear-wheel in a way to depress the end attached to said stitch-forming portion after each alternate stroke of said stitchforming mechanism, substantially as described.
  • a driving gear-wheel in combination with a yoke-shaped frame and a feedroller for engaging the fabric inserted therein, a driving gear-wheel, a wheel intermeshing therewith and mounted on the same shaft as the feed-roller for imparting motion to the shuttle mechanism, a cog wheel mounted on said shaft intermediate said intermeshing wheel and the feed-roller and rigid with respect to said feed-roller, a second wheel also meshing with said gear-wheel though axially perpendicular thereto, and a cap carried by said second wheel and engaging between successive teeth of said cogwheel, substantially as described.
  • a carpet-sewing machine in combination with a yoke-shaped frame and a serrated feed-roller extending transversely of the open portion of the frame for advancing a fabric therethrough, a cog-wheel axially in alinement therewith and rigid with respect thereto, a wheel axially perpendicular thereto and having its periphery meshing therewith, an actuating gear-wheel therefor, a needlecarrier and needle, a runway therefor and a lever carrying said runway and carrier, and means carried by said lever whereby upon its engagement with a portion of said gear wheel its position with reference to the rest of the machine is changed, substantially as described.
  • a carpet-sewing machine in combination with a frame adapted to engage over the edges of the pieces to be united, a lever pivoted at one end thereto, a stitch-forming mechanism pivotally connected to and partially supported by the other end of said lever, and a driving gear-wheel adapted to actuate said stitch-forming mechanism and also to engage with an irregular portion of its surface the center portion of said lever to effect the depression of that end which carries the stitch-forming mechanism after each alternate stroke thereof, substantially as de scribed.
  • a wheel having a broken periphery meshing with a part thereof and a piece hinged there to, adapted to complete the periphery thereof or to be dropped from the plane thereof at one end and to engage and actuate said feedroller upon the rotation of the wheel, substantially as described.
  • a gear-wheel rigidly connected therewith, a wheel having a broken periphery meshing with said gear-wheel and a piece hinged thereto and occupying the broken portion thereof adapted to be dropped at one end from the plane of the remainder of the periphery and to engage and actuate said gear-wheel and feed-roller, substantially as described.
  • a latch member adapted to be moved into engagement with said carrier-actuating means and to hold the same from movement or displacement from such position into another plane after reciprocation, substantially as described.
  • a yoke-shaped frame In a carpet-sewing machine, the combination of a yoke-shaped frame, means for advancing fabric therethrough, a reciprocat ing needle-carrier normally arranged to be moved from one plane to another after each reciprocation, and means normally out of engagement with a portion of said actuating means and adapted to be manually slid into engagement therewith to prevent the same from movement into another plane of reciprocation after the completion of the stroke, substantially as described.

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Description

PATENTED JULY 17, 1906.
D. W. ROBINSON. CARPET SEWING MACHINE s SHEETS-SHEET 1.
[WVE/VTOR APPLICATION FILED JUNE 19.1905.
WIZZWESSES PATENTED JULY 17, 1906.
\ D. W. ROBINSON.
CARPET SEWINGMAGHI APPLIO ATION FILED JUNE 19,1905.
3 (BEETS-SHEET 2.
[WVEWTOR WITNESSES Ma 27. @M
@M/ w WEW THE NORRIS PEYERS cc., WASHINGTON, D. c.
D. W. ROBINSON.
CARPET SEWING MACHINE. APPLICATION FILED JUNE 19,1905.
3 SHEETS-SHEET 3.
I I W I Z; L l/ s ham 5.2.92.5
' [WVEWTOR li PATENTED JULY1'7, 1906.
DWIGHT W. ROBINSON, OF ALBION, MICHIGAN.
CARPET-SEWING MACHINE.
Specification of Letters Patent.
Patented July 17,1906.
Application filed June 19,1906. Serial No, 265.376.
To all whom, it may concern:
Be it known that I, DWIGHT W. ROBINSON, a citizen of the United States, residing at Albion, county of Calhoun, State of Michigan, have invented a certain new and useful Tmprovement in Carpet-Sewing Machines; and I declare the following to be a full, clear, and exact description of the, invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.
This invention relates to machines for stitching together lengths of carpet.
It has for its object certain improvements in the mechanism intended and adapted to permit the sewing together of adjacent edges without causing additional and undesirable thickness of the fabric along the line of union and the overcasting of cut edges where there is no protecting-selvage.
The class of machines to which the invention is particularly adaptable is the now well-known saddle type, which is designed to be hung upon and supported by the up wardly-presented edges of the strips of carpet to be united. In the machines of this type which have heretofore been developed the needle has been confined in its reciprocation to a single horizontal plane, which resulted in a perfectly straight line of stitching, which in order to unite the adjacent edges of carpet had to penetrate both pieces of fabric at an appreciable distance from the edge of each. When on the completion of the work the united piece was stretched out upon the floor, the double thickness of the fabric separated and spaced from that part which was to lie flat upon the floor by the straight line of stitching caused an undesirable hump or ridge. By the use of the attachment hereinafter described this Ohjectionable factor is obviated and a more perfect and sightly union of the pieces of fabricis effected.
In the drawings, Figure 1 is a perspective of a carpet-sewing machine of this type provided with my improved needle-reciprocating attachment. Fig. 2 is an enlarged perspective of the swinging needle-arm and its related parts looking in the opposite direction from that in Fig. 1. Fig. 3 is a detail view showing the inner face of the driving gear-wheel and its relation to the needle-controlling lever and the powerpinion meshing therewith. Figs. 4, 5,6, and 7 show the different types of stitch which may be made, as well as variations in the length of each. Fig. 8 is a detail view from the opposite side of the machine from that shown in Fig. 1, showing the relation of the needle-controlling lever and the button or latch by means of which it may be held from vertical reciprocation. Fig. 9 is an elevation of the circular cap 8 and connected parts and the gearwheel 5 with which it meshes. Fig. 10 is an elevation showing the hinged portion of the rim of the circular cap.
The framework of the machine consists, essentially, of'two sections F and F, which are joined by the yoke Y and by the transverselyextending shaft S between the two sections. The operator guides the machine by means of the handle 2. The edges of carpet whose union is desired are thrust therebetween until their further upward progress is resisted by the yoke Y, or, more properly, the guide-piece 41, which dependsfroni the yoke, and the feed-roller 2, which is carried on a sleeve which incloses a part of the length of the shaft S directly over the space lyin between the sections F and F. The perip cry of this feed-roller is serrated, so that as itis rotated the teeth engage in the edge of the carpet and advance it, its speed being predetermined with reference to the length of stitch desired. On the outer end of the shaft S, looking in the direction of Fig. 1, is fixed a pulley 3. A belt or chain B travels over this to a small sprocket-wheel 37 on the face of the balance-wheel W, whichis carried upon the lower part of the section F of the frame.
The driving gear-wheel G (shown in detail in Fig. 3) is rotated by means of the crank C and causes the wheel L, which is carried on the inner e'nd of the shaft and meshes with it, to rotate. The driving gear-wheel G also meshes with a wheel R, which is carried'by the upper end of a vertical shaft in the section F of the. frame. The top of this wheel carries a circular cap 8, whose periphery is thinned to an extent suflicient to pass between the teeth of a gear-wheel 5, which is carried about the middle of the shaft S. Both it and the feed-roller 2 are rigidly attached to a sleeve9, through which the shaft S passes,thus enabling the feed-roller and this gear-wheel to have movement independent ofthe speed of rotation of the shaft. riphery of this cap, preferably about onesixth, is cut away, so as to be independent of and removable from the rest of the periphery. This portion 7 of the cap is hinged at one end at or just below its peripheral edge to the remainder of the cap, while the other end may be raised or lowered within the limits set by the size of the slot 14 and screw 15, so as to be continuous with the solid portion of the periphery or to terminate slightly below the same when dropped. from this position. The purpose and function of this arrangement is to regulate the speed with which the machine is operated and the fabric is advanced, and consequently the length of stitch at each reciprocation of the sewing mechanism. If this sector 7 is continuous with'the remainder of the periphery of the cap, it meshes with the gear-Wheel 5 and does not cause it to rotate at all. If, however, a stitch of ordinary length is desired, the slotted end is dropped to a lower position. As this portion passes through the gear-wheel 5 (the rotation of this cap, as shown in Fig. 1, being contra-clockwise) it serves to force the periphery of this wheel down and around the distance occupied by one of the teeth in its periphery, and consequently causes the feed-roller 2 to rotate so much more. If a still longer stitch is desired, the unhinged end of this sector is dropped still lower, so that as it engages in the gear-wheel 5 it throws it around still farther at each rotation.
The arm T is pivoted or hinged to the rear portion of the frame at 32 in such a way as to extend over the cap 8 with the cam-slot directly over said cap and with the pin 17 projecting upward therethrough from the surface of the cap 8. Because of the shape of this cam-slot an intermittent oscillatory motion is imparted to it upon the rotation of the cap 8 in the manner heretofore described.
In the foreground of Fig. 1 there is shown upon the section F of the frame a pair of horizontal track-bars 22, upon which oscillates the needlecarri er 23, from whose upper surface a pin 18 projects through the outer end of the slot in the arm T. By this means a reciprocating motion is imparted to the needlecarrier, from the inner face of whichthat is, proj ecting toward the center of the machine extends the needle 19, which is periodically driven lengthwise across the space bridged by the yoke Y and substantially beneath the yoke through the strips of carpet held therebetween. ment of the carrier the needle is drawn well away from this space. In the outer face of this needle-carrier is a vertical groove 20, in which reciprocates that portion of the needlecarrier which actually carries the needle, but which, except for its connection with the main body of the carrier, is not connected With the cam-slot in the lever T. One portion A portion of the pe- On the extreme retroactive moveof this needle-holding part is also arranged to slide in a horizontal track or runway 24, which is carried by standard 24, whose base slidably engages in vertical shafts 39, bored in the frame-piece F. This runway is also pivotally connected to and actuated by the end of the lever 27, through whose pivoted end passes the shaft S. At the rear end of the machine a spring which engages this fixed end (not shown in the drawings) operates to maintain this lever in a horizontal position when not under stress of the cam-piece 31, hereinafter described, and so that the lever 24 and the vertical slidable portion of the needle-carrier which it supports are kept at the upward limit of their possible movement. This position is maintained during the halfrevolution ofthe actuating-crank C, the size of the intermediate gear-wheel being proportioned to this end. During the other half of the revolution of the crank C, however, a pin 29, provided with an antifriction-roller projecting from the said lever 27, as shown in Figs. 2 and 3, engages a cam-piece 31 on the inner face of the periphery of the driving gear-wheel G and which at this point has reached the top of its plane of travel and together with the lever is depressed by its contact therewith. This of course causes also the depression of the runway and the slidable portion of the needlecarrier, so that as the needle-carrier is again driven by the enforced oscillation of the lever T the needle is advanced at the lowerlevel with relation to the yoke Y and the remaining portion of the machine, and this locates the next stitch at a point one-quarter to one-half an inch out of line with that line of stitches placed by the needle at its highest stroke. The gear-wheel G and the wheel R are so proportioned as to size that two revolutions of the wheel R and its cap 8 take place to one revolution of the gear-wheel G and its actuating-crank 0.
Assuming that care has been taken to so locate the edges of the strips to be imited .that the stitches made by the needle at its upper strokes just overreach the upper edge of the two pieces as they lie side by side, the stitches made by the needle at its lower strokes are only at sufficient distance from the edge to insure against tearing of the fabric under ordinary strain, and in no case does it result in a segregation from the main body of each strip of such a volume of the fabric as to create a hump or ridge when it is laid flat upon the floor.
In the outer face of the inclosing casing 39 of the gear-wheel G is a button, forming the head of an interfering pin or latch 42, which is horizontally slidable in a groove 42 and which when moved to the outer limit of its travel engages and holds down in its lowermost position the lever 27, so that as the needle-carrier continues to be reciprocated by the lever T, as heretofore explained, its
reciprocation is possible only along the same plane, not in different planes at alternate reciprocations. This results in such a line of stitches as is shown in Figs. 6 and 7 as distinguished from those shown in Figs. 4 and 5.
As the thread-feed, bobbin-holder 34, and
shuttle part 35 form no part of myinvention and as any one of several difierent' types are equally adaptable to a machine embodying my invention, I do not attempt to-describe the same.
What I claim is 1. In a carpet-sewing machine, in combination with a yoke-shaped frame adapted to receive the edges of the pieces to be united between the depending portions thereof, a stitch-forming mechanism, a driving gearwheel actuating said stitch-forming mechanism, said gear-wheel having one face provided with a cam portion, and a lever fulcrumed at one end to a portion of the frame and connected to and partially supporting said stitch-forming mechanism with its other end, having a portion intermediate said ends adapted to be periodically contacted by the cam portion of said driving gear-wheel whereby the plane'of reciprocation of said stitchforming mechanism is changed after each reciprocation thereof, substantially as de scribed.
2. In a carpet-sewing machine, in combination with a yoke-shaped frame and a feedroller extending transversely of the open portion thereof and adapted to engage the upturned edges of the pieces to be united and by its rotation to advance the machine with respect thereto, a driving gear-wheel for actuating the same, there being a cam portion on one face of said driving gear-wheel, a stitchforming mechanism deriving its actuation from said driving gear-wheel, and a lever pivotally connected at one end to said frame and at the other end to said stitch-forming mechanism, and serving to partially support the same, having an intermediate portion adapted to be periodically engaged by the cam portion of said driving gear-wheel, whereby said stitch-forming mechanism may be depressed from the position occupied by it with respect to the frame and the pieces of carpet on alternate strokes thereof, substantially as described.
3. In a carpet-sewing machine, in combi nation with a yoke-shaped frame, a feedroller adapted to engage the edges of the carpet inserted between the parts of said frame and to advance the same therealong with respect to said edges, a driving gear-wheel adapted to actuate the same, one face of said driving gear-wheel being formed as a cam, a stitch-forming mechanism also depending upon said driving gear-Wheel for its actua tion, the needle carrying portion of said stitch-forming mechanism being vertically movable with respect to said frame, and a lever pivoted at one end to a fixed portion of said frame and at the other to said needlecarrying part of the stitch-forming mechanism, the center portion of said lever being provided with a bearing projection adapted -to be periodically engaged by the cam portion of said driving gear 'wheel to effect a depression of the needle-carrying portion of said stitch-forming mechanism after each alternate stroke, substantially as described.
4. In a carpet-sewing machine, in combination with a yoke-shaped frame adapted to receive the edges of carpet between depending portions thereof, a stitch-forming mechanism engaging transversely to the plane of the pieces of carpet inserted therebetween, a driving gear-wheel adapted for manual actuation, a complementary wheel meshing therewith whereby the actuation imparted by said driving gear-wheel is communicated to the stitch forming mechanism, and a pivoted lever partially supporting said stitchforming mechanism and adapted to be periodically engaged by an irregular portion of said driving gear-wheel and horizontally displaced from its position with respect to the frame and the pieces of carpet after each alternate stroke of said stitclrforming mechanism, substantially as described.
5. In a carpet-sewing machine, in combination With a frame adapted to engage over the edges of the pieces of carpet to be united, a driving gear-wheel provided with a cam portion on one surface, a feed-roller adapted to positively engage the edges of the carpet and advance the frame therealong, a wheel meshing with said driving gear-wheel whereby the actuation imparted by it is communicated to said feed-roller, a second driven wheel meshing with said driving gear-wheel, a stitch-forming mechanism receiving its actuation through said second wheel, a part of said stitch-forming mechanism being vertically movable with respect to the frame and the pieces of carpet, and a lever supporting said portion of the stitch-formim mech anism on one end and pivoted at its other end to the frame, having an intermediate portion adapted to be contacted by said cam portion of the driving gear-wheel in a way to depress the end attached to said stitch-forming portion after each alternate stroke of said stitchforming mechanism, substantially as described.
6. In a carpet-sewing machine, in combination with a yoke-shaped frame and a feedroller for engaging the fabric inserted therein, a driving gear-wheel, a wheel intermeshing therewith and mounted on the same shaft as the feed-roller for imparting motion to the shuttle mechanism, a cog wheel mounted on said shaft intermediate said intermeshing wheel and the feed-roller and rigid with respect to said feed-roller, a second wheel also meshing with said gear-wheel though axially perpendicular thereto, and a cap carried by said second wheel and engaging between successive teeth of said cogwheel, substantially as described.
7. In a carpet-sewing machine, in combination with a yoke-shaped frame and a serrated feed-roller extending transversely of the open portion of the frame for advancing a fabric therethrough, a cog-wheel axially in alinement therewith and rigid with respect thereto, a wheel axially perpendicular thereto and having its periphery meshing therewith, an actuating gear-wheel therefor, a needlecarrier and needle, a runway therefor and a lever carrying said runway and carrier, and means carried by said lever whereby upon its engagement with a portion of said gear wheel its position with reference to the rest of the machine is changed, substantially as described.
8. In a carpet-sewing machine, in combination with a frame adapted to engage over the edges of the pieces to be united, a lever pivoted at one end thereto, a stitch-forming mechanism pivotally connected to and partially supported by the other end of said lever, and a driving gear-wheel adapted to actuate said stitch-forming mechanism and also to engage with an irregular portion of its surface the center portion of said lever to effect the depression of that end which carries the stitch-forming mechanism after each alternate stroke thereof, substantially as de scribed.
9. In a carpet-sewing machine, in combination with a feed-roller for engaging the fabric and forcing the same therethrough,a wheel having a broken periphery meshing with a part thereof and a piece hinged there to, adapted to complete the periphery thereof or to be dropped from the plane thereof at one end and to engage and actuate said feedroller upon the rotation of the wheel, substantially as described.
10. In a carpet-sewing machine, in combination with means for engaging the fabric and forcing the same past the sewing mechanism, a gear-wheel rigidly connected therewith, a wheel having a broken periphery meshing with said gear-wheel and a piece hinged thereto and occupying the broken portion thereof adapted to be dropped at one end from the plane of the remainder of the periphery and to engage and actuate said gear-wheel and feed-roller, substantially as described.
11. In a carpet-sewing machine, in combination with a reciprocating needle-carrier arranged to bemoved from one plane to another after each reciprocation, and means whereby said carrier is so actuated, a latch member adapted to be moved into engagement with said carrier-actuating means and to hold the same from movement or displacement from such position into another plane after reciprocation, substantially as described.
12. In a carpet-sewing machine, the combination of a yoke-shaped frame, means for advancing fabric therethrough, a reciprocat ing needle-carrier normally arranged to be moved from one plane to another after each reciprocation, and means normally out of engagement with a portion of said actuating means and adapted to be manually slid into engagement therewith to prevent the same from movement into another plane of reciprocation after the completion of the stroke, substantially as described.
In testimony whereof I sign this specification in the presence of two witnesses.
DWIGHT W. ROBINSON.
Witnesses:
ALroE TowNsEND, WILLIAM M. SWAN.
US26587605A 1905-06-19 1905-06-19 Carpet-sewing machine. Expired - Lifetime US826275A (en)

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