US2092953A - Curtain stretcher - Google Patents

Curtain stretcher Download PDF

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Publication number
US2092953A
US2092953A US83623A US8362336A US2092953A US 2092953 A US2092953 A US 2092953A US 83623 A US83623 A US 83623A US 8362336 A US8362336 A US 8362336A US 2092953 A US2092953 A US 2092953A
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United States
Prior art keywords
rail
sections
locking bars
relation
permit
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Expired - Lifetime
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US83623A
Inventor
Clarence G Carlson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHICAGO CURTAIN STRETCHER Co
CHICAGO CURTAIN STRETCHER COMP
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CHICAGO CURTAIN STRETCHER COMP
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Priority to US83623A priority Critical patent/US2092953A/en
Application granted granted Critical
Publication of US2092953A publication Critical patent/US2092953A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F59/00Supports adapted to retain the shape of particular articles being dried, e.g. incorporating heating means
    • D06F59/08Supports adapted to retain the shape of particular articles being dried, e.g. incorporating heating means for curtains, table cloths, or other articles of sheet form
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00Joints and connections
    • Y10T403/32Articulated members
    • Y10T403/32008Plural distinct articulation axes
    • Y10T403/32057Angular and linear
    • Y10T403/32073Pivot stud slidable in elongated opening

Definitions

  • This invention relates to curtain stretchers employing side rails (or end rails) which are of such length that it is desirable to make them in sections in order to permit the folding of the curtain stretcher into compact form when it is not set up for use.
  • This requires that the rail sections be united in such a manner as to afford a firm and rigid connection when in use and sulficient reinforcement at the joint to prevent bending or collapse, and at the same time afford means which will permit the joint to be quickly broken and which will thereafter serve to hold the two sections in folded relation to one another.
  • the present invention is directed to the means provided for affording an interlocking connection for the rail sections of extremely simple and rugged construction, which may be manufactured by a simple punch press operation andwhich in use will afford abundant rigidity and at the same time permit the sections to be drawn apart and folded without difiiculty.
  • Figure 1 is a plan view of a portion of the curtain stretcher showing the joint members of the present invention
  • Fig. 2 is an edge elevation of the same
  • Fig. 3 is a plan view showing the joint broken preparatory to the folding of the rail sections
  • Fig. 5 is a sectional view taken on line 5-5 of Fig. 1;
  • Fig. 6 is a sectional view taken on line 66 of Fig. 4.
  • Fig. 7 is a perspective view showing the joint plates standing in their intended relation to one another with the rail sections removed.
  • the curtain stretcher of standard type is provided with side rail sections 1 fl and l 1 which when the stretcher is set up stand in alignment with one another and with their ends in closely abutting relation.
  • a wooden cross rail 12 traverses the joint between the wooden side rail sections 10 and It, the cross rail being provided with the usual graduations marked thereon.
  • the rail section 10 has secured thereto on opposite sides a pair of locking bars 13 and 14 which are secured by means of rivets 15 passing through the wooden rail section and to overlap the end of the rail section II when the two sections stand in butt contact.
  • the locking bar 13 is provided near its outwardly projecting end with an open slot 16 and the locking bar 14 is of L-shape and the threaded end of the bolt receives a wing nut 1 21 which maybe turned down'to abut against the cross rail 12 and hold the locking bars in tightly clamped relation upon opposite sides of the end of the rail section.
  • the slot !8 in the leg H is of sufiicient length to permit the bolt 19, when loosened, to be slipped to the outer end of the slotas in Fig.
  • the two locking bars 13 and 14 being stamped from plate metal without offsets or protuberances may be made of comparatively heavy stock by a simple stamping operation which affords great rigidity, and the connection thus afforded serves to hold the ends of the side rails into close butt contact so that a single screw bolt and wing nut will afford abundant friction to maintain the parts in aligned relation during use.
  • the device is of extremely simple construction and has been found distinctly superior to more complicated devices employing hinge connections or the like.
  • connection hereinbefore described possesses substantial advantages for use in locking the rail joints of a curtain stretcher, it is also adapted for use under circumstances in which a like connection is required.
  • a curtain stretcher or the like the combination of rail sections standing in end abutment with one another, one of the sections being provided on opposite sides with forwardly projecting locking bars extending past the jointbetween the rail sections and adapted to embrace the companion rail section, each of the locking bars being provided with a transverse slot the slots extending in parallel relation and, at least one of said slots being closed at its outer end, a connecting member entered through the, two slots and through the last named rail section, and locking means on the connecting member for holding the locking bars in locked relation across the joint between the rail sections, the slots being spaced from the end of the member which carries the locking bars at a distance sufiicient to prevent longitudinal movement of the sections from the position establishing close butt contact and the closed slot being of suflicient length to permit lateral movement of the rail sections and to permit theabutting ends to slip past one another to the degree necessary to permit folding of the structure.
  • the combination of side rails normally adapted to stand in end abutting relation to one another, one of the sections being provided on opposite sides with locking bars projecting forwardly therefrom in position to embrace the sides of the companion rail section near the end thereof, one of the locking bars being provided within its projecting end with a transversely extending open slot and the other locking bar being provided with a laterally extending leg having therein an elongated slot parallel with the first mentioned slot and closed 0 at its outer end, a bolt entered through the companion rail section and through the slots in the locking bars, and the'slots being spaced from the end of the section which carries the locking bars in a degree sufficient to prevent longitudinal movement of the sections from the position establishing close butt contact, and screw means on the bolt for holding the locking bars in clamping relation across the joint between the rail sections, the elongated slot being configured to permit the rail sections to be moved laterally and the abutting ends to slippast one another without longitudinal displacement to the degree necessary to permit folding of the
  • the combination of side rails normally adapted to stand in end abutting relation to one another, one of the sections being provided on opposite sides with locking bars projecting forwardly therefrom in position to embrace the sides of the companion rail section near the end thereof, one of the locking bars being provided within its projecting end with a transversely extending open slot and the other locking bar being provided with a laterally extending leg having therein an elongated slot parallel with the first mentioned slot and closed at its outer end, a bolt entered through the com panion rail section and through the slots in the locking bars, and the slots being spaced from the end of the section which carries the locking bars in a, degree sufficient to prevent longitudinal movement of the sections from the position establishing close butt contact, means on the bolt for holding the locking bars in clamping relation across the joint between the rail sections, the elongated slot being configured to permit the rail sections to be movedlaterally and the abutting ends to slip past one another without longitudinal displacement to the degree necessary to permit folding of the structure, and

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)

Description

Sept. 14, 1937. c a CARLSQN 2,092,953
CURTAIN SIRETCHER Filed June 5, 1936 Patented Sept. 14, 1937 UNITED} STATES CURTAIN STRETCHER Clarence G. Carlson, Chicago, 111., assignor to Chicago Curtain Stretcher Company, Chicago, 11., a corporation of'Illinois Application June 5, 1936, Serial No. 83,623
3 Claims.
This invention relates to curtain stretchers employing side rails (or end rails) which are of such length that it is desirable to make them in sections in order to permit the folding of the curtain stretcher into compact form when it is not set up for use. This requires that the rail sections be united in such a manner as to afford a firm and rigid connection when in use and sulficient reinforcement at the joint to prevent bending or collapse, and at the same time afford means which will permit the joint to be quickly broken and which will thereafter serve to hold the two sections in folded relation to one another. The present invention is directed to the means provided for affording an interlocking connection for the rail sections of extremely simple and rugged construction, which may be manufactured by a simple punch press operation andwhich in use will afford abundant rigidity and at the same time permit the sections to be drawn apart and folded without difiiculty.
Further objects and details will appear from a description of the invention in conjunction with the accompanying drawing, wherein,
Figure 1 is a plan view of a portion of the curtain stretcher showing the joint members of the present invention;
Fig. 2 is an edge elevation of the same;
Fig. 3 is a plan view showing the joint broken preparatory to the folding of the rail sections;
Fig. 4 is a similar view showing the parts in folded relation;
Fig. 5 is a sectional view taken on line 5-5 of Fig. 1;
Fig. 6 is a sectional view taken on line 66 of Fig. 4; and
Fig. 7 is a perspective view showing the joint plates standing in their intended relation to one another with the rail sections removed.
As shown in Fig. 1, the curtain stretcher of standard type is provided with side rail sections 1 fl and l 1 which when the stretcher is set up stand in alignment with one another and with their ends in closely abutting relation. A wooden cross rail 12 traverses the joint between the wooden side rail sections 10 and It, the cross rail being provided with the usual graduations marked thereon.
The rail section 10 has secured thereto on opposite sides a pair of locking bars 13 and 14 which are secured by means of rivets 15 passing through the wooden rail section and to overlap the end of the rail section II when the two sections stand in butt contact. The locking bar 13 is provided near its outwardly projecting end with an open slot 16 and the locking bar 14 is of L-shape and the threaded end of the bolt receives a wing nut 1 21 which maybe turned down'to abut against the cross rail 12 and hold the locking bars in tightly clamped relation upon opposite sides of the end of the rail section.- j I The slot !8 in the leg H is of sufiicient length to permit the bolt 19, when loosened, to be slipped to the outer end of the slotas in Fig. 3, which affords just sufficient clearance to permit the bolt to act as a hinged pintle or pivot forswinging around the side rail sectionl I into parallel folded Z relation to the section 10, and also permitsa similar folding of the cross rail 12 as in Fig. 4. This permits the elongated side rails of the curtain stretcher to be folded into convenient compass for storage and also insures against accidental disassembly of the parts, although permitting such disassembly by the complete removal of the wing nut 21 and bolt 19 if occasion requires.
The two locking bars 13 and 14 being stamped from plate metal without offsets or protuberances may be made of comparatively heavy stock by a simple stamping operation which affords great rigidity, and the connection thus afforded serves to hold the ends of the side rails into close butt contact so that a single screw bolt and wing nut will afford abundant friction to maintain the parts in aligned relation during use. This is due to the fact that the proportioning of the parts is such that the two rail sections can be brought into aligned relation only by a transverse sliding movement, and the ends of the rails being cut at right angles will thus slip past one another in very close contact, so that this closeness of fit is relied upon to prevent bending or buckling at the joint, and the locking elements serve merely to maintain the butt contact so that additional bracing is unnecessary.
The device is of extremely simple construction and has been found distinctly superior to more complicated devices employing hinge connections or the like.
Although the connection hereinbefore described possesses substantial advantages for use in locking the rail joints of a curtain stretcher, it is also adapted for use under circumstances in which a like connection is required.
I claim:
1. In a curtain stretcher or the like, the combination of rail sections standing in end abutment with one another, one of the sections being provided on opposite sides with forwardly projecting locking bars extending past the jointbetween the rail sections and adapted to embrace the companion rail section, each of the locking bars being provided with a transverse slot the slots extending in parallel relation and, at least one of said slots being closed at its outer end, a connecting member entered through the, two slots and through the last named rail section, and locking means on the connecting member for holding the locking bars in locked relation across the joint between the rail sections, the slots being spaced from the end of the member which carries the locking bars at a distance sufiicient to prevent longitudinal movement of the sections from the position establishing close butt contact and the closed slot being of suflicient length to permit lateral movement of the rail sections and to permit theabutting ends to slip past one another to the degree necessary to permit folding of the structure.
2. In a curtain stretcher or the like, the combination of side rails normally adapted to stand in end abutting relation to one another, one of the sections being provided on opposite sides with locking bars projecting forwardly therefrom in position to embrace the sides of the companion rail section near the end thereof, one of the locking bars being provided within its projecting end with a transversely extending open slot and the other locking bar being provided with a laterally extending leg having therein an elongated slot parallel with the first mentioned slot and closed 0 at its outer end, a bolt entered through the companion rail section and through the slots in the locking bars, and the'slots being spaced from the end of the section which carries the locking bars in a degree sufficient to prevent longitudinal movement of the sections from the position establishing close butt contact, and screw means on the bolt for holding the locking bars in clamping relation across the joint between the rail sections, the elongated slot being configured to permit the rail sections to be moved laterally and the abutting ends to slippast one another without longitudinal displacement to the degree necessary to permit folding of the structure.
3. In a curtain stretcher or the like, the combination of side rails normally adapted to stand in end abutting relation to one another, one of the sections being provided on opposite sides with locking bars projecting forwardly therefrom in position to embrace the sides of the companion rail section near the end thereof, one of the locking bars being provided within its projecting end with a transversely extending open slot and the other locking bar being provided with a laterally extending leg having therein an elongated slot parallel with the first mentioned slot and closed at its outer end, a bolt entered through the com panion rail section and through the slots in the locking bars, and the slots being spaced from the end of the section which carries the locking bars in a, degree sufficient to prevent longitudinal movement of the sections from the position establishing close butt contact, means on the bolt for holding the locking bars in clamping relation across the joint between the rail sections, the elongated slot being configured to permit the rail sections to be movedlaterally and the abutting ends to slip past one another without longitudinal displacement to the degree necessary to permit folding of the structure, and a cross rail abutting against the outer face of the angularly disposed slot lock and having the bolt entered therethrough and adapted to pivot on said bolt to permit folding.
CLARENCE G. CARLSON.
US83623A 1936-06-05 1936-06-05 Curtain stretcher Expired - Lifetime US2092953A (en)

Priority Applications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100328945A1 (en) * 2009-06-30 2010-12-30 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Led lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100328945A1 (en) * 2009-06-30 2010-12-30 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Led lamp
US8157420B2 (en) * 2009-06-30 2012-04-17 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. LED lamp

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