US1221161A - Extension curtain-roller. - Google Patents

Description

0. .E. ENELL. EXTENSION {IURTAIN ROLLER. APPucATloN FILED SEPT. 2o. |915.

Patented Apr. 3, 1917.

11N TEU @TW-ATF@ PATENT @FFllCtEty OTTO EDWARD ENELL, OF JERSEY CITY, NEW JERSEY, ASSIGNOR TO UNIQUE SPECIALTY co., TNC., or NEW YORK, N. Y.

EXTENSION CURTAIN-ROLLER.

@ummm-umg Specification of Letters Patent.

Patented Apr. 3, 19.1 7.

Application filed September 20, 1915. Serial No. 51,558.

To all wlwm t may concern:

Be it known that I, OTTO EDWARD ENELL, a citizen of the United States, and resident of Jersey City, in the county of Hudson and State of New Jersey, have invented certain new andl useful Improvements in Extension Curtain-Rollers, of which the following is a specification.

This invention relates to extension curtain rollers. Itsprimary novelty consists in a roller comprising outer tubes of paper,

or other pliable material the walls of which v are completely closed and inner tubes of tin or other metal which telescope therewith so that the length ofthe curtain roller can be varied. |lhe latter tubes have longitudinal openings, and plugs are driven into the latter tubes'to lock them with the outer tubes of paper.

In the accompanying drawings Figure 1 represents a longitudinal axial section of one form of the invention with some of its appurtenances in full; Fig. 2 represents a section of Fig. 1, as on the line 2, 2; Fig. 3 is a section as on the line 3, 3 of Fig. 1; Fig. 4 is a' section as on the line of 4, 4 of Fig. 1; Fig. 5 shows an axial section of a modification of the invention; Fig. 6 is a section of Fig. 5 as on the line 6, 6; Fig. 7 shows a sectio-n of Fig. 5 as on the line 7 7; Fig. 8 shows an axial section of a second modification; Fig. 9 shows an axial section of a third modification; Fig. 10 is a sectionv of Fig. 9 on the line 10, 10; Fig. 11 shows a section of Fig. 9 on the line 11, 11 and Fig. 12 shows an axial section of a fourth modification of the invention.

Referring to Figs. 1 to 4 a curtain roller is shown with the outer paper tube 20 and the outer paper tube 21, both of the same outside diameter, the tube 21 being of a somewhat larger internal diameter than the tube 20. VJithin the tube 21 is forced the metallic expansible inner tube 22 which has formed therewith the longitudinal slot 23. A journal and clamping plug 26 lwith, an axial opening is forced into the expansible inner tube 22 and locks the said tube 22 with the paper tube 21. An end bearing and clamping plug 27 is forced into the tube 2 2 at the outer end thereof. A journal cap 28 encircles the end of the paper tube 21 and has a central journal opening. A11 eXPansible metallic tube or liner 33 is located within the paper tube 20 and telescopes with thev tube 22. The latter tube has formed therein the longitudinal slot 34. A clamping and bearing plug 35 with an axial opening is forced into the tube 33 and locks together the latteigthe tube 22 and the paper tube 21. An end` bearing and clamping plug 36 with a central opening is forced into the outer end of the tube 33 and clamps said tube with the paperr tube 20. vAn anchor and journal plug 39 with an axial opening is forced into the tube 33 and clamps together both of said expansible tubes and the paper tube 21. A ratchet cap 40 encircles the outer end of the paper tube 2O and has pivoted thereto the ratchet pawls 41.

A shaft tube is indicated at and has formed therewith the longitudinal slot 46. The tube 45 is journaled in the openings of the plugs 35, 36 and 39. A tubular spring anchor 47 with the rectangular end 48 is supported on the tube 45. A ratchet disk 49 is fastened to the anchor 4,7 and coacts with the pawls 41. n

A spring 50 has one end fastened to the tubular anchor 47 and the other end thereof is fastened to the anchor and journal plug 39. A rectangular anchor support 51 has connected thereto the shifting bar 52.

A clamping bracket 53 which is secured to a stationary support has an opening 54 for the bar 52, and a clamping screw 55 coacts with said opening to clamp the bar 52 in different positions. A second opening 56 in the bracket 53 coa-cts with the clamping screw 57 to clamp a cord, or chain, as will be explained. A shaft 60 telescopes with the shaft tube 45` and has extending therefrom a pin 61 lwhich latter engages the slot 46 of the tube 45. The shaft 60 and shaft tube 45 constitutes together a telescope shaft. At the outer end of the shaft tube45 are fastened the pair of pulleys 65 and 66. A bracket 67 has journaled therein a pulley 68. A Cord has one end thereof fastened in the opening 56, leads to and is wound around the pulley 65. From the latter the said cord leads over the pulley 68 and then is wound around the pulley 66. The cord 70 then leads to and is fastened to one end of the helical spring 71. The other end of the latter-spring is fastened to the bracket 53, by means of the cord 73 and eyelet 74. To the outer end of the shaft 60 are fastened the pair of pulleys 75 and 76. A bracket 77 has journaled therein the guide pulley 78. A

bracket 80 has formed therein an opening 81 which latter coacts with the clamping screw 82. A cordy 83 has one end fastened in the opening 81, then leads to and is wound once around the pulley 75, from which latter it leads over the pulley 78. From thence the cord 83 leads to and is wound once around the pulley 76 and is then fastened to one end of the helical spring 84. The otherv end of the latter spring is fastened to the cord 85 which in turn is fastened to an eyelet 86 Yextending from the bracket 80.

To operate the curtain roller, the operator gives the proper tension to the spring 50 in the usual way before the cords and 83 are wound around their coacting pulleys. When the operator wishes to raise or lower the curtain, not shown of the roller, he pulls said curtain so as to disengage the pawls 41 in theusual way, and the roller turns on the shaft 60 and on the shaft tube 45, the two latter with their pulleys remaining stationary. When the roller is to be bodily raised or lowered, the operator moves the shifting bar 52 up or down. This turns the pulleys 65, 66 and 75 and 76 the same amounts, by coacting with their cords and maintainsI the roller in horizontal positions. The length of the roller can be shortened by cutting off a portion of either of the paper tubes 20 or 21 and telescoping somewhat further the tube- 33 with the metallic tube 22 and telescoping somewhat further the shaft 60 with the shaft tube 45. The length of the roller can be increased by separating somewhat further the paper tube 20 from 21 and shaft tube 45 from the shaft 60. When the tubes 20 and 21 are separated, as just explained, a tube of the same diameters as 21 is placed between the adjoining ends of the tubes 20 and 21.

In the modification of the invention shown in Figs. 5, 6 and 7 a central outer paper tube 90, has forced therein the central metallic expansible tube 91 having the longitudinal slot 92. A clamping plug 93 locks the tube 91 with the tube 90. Abutting against the ends'of the central outer paper tube 90 are shown the end outer paper tubes 95 and 96 which are somewhat smaller in internal di- Y ameter than the paper tube 91, but are of the same outside diameter as said tube 91.

An eXpansible metallic tube 100 with the longitudinal slot 101 is forced into the paper tube 96 and an eXpansible metallic tube `102 with the longitudinal slot 103 is forced in the paper tube 95. 'The tubes 100 and 102 telescope with the tube 91. A clamping plug 106 is forced into the tube 100 and locks the latter tube with the tube 96. A clamping plug 107 locks the tube 102 with the tube 95. A clamping plug 108 locks together the tubes 100, 91 and tube 90, and a clamping plug 109 locks together the tubes 102, 91 and the tube 90.

An end bearing and journal plug 112 is forced into the outer end of the tube 100, and

'an anchor plug 118 is also forced into the tube 100. A spring stick 119 abuts with one end in the plug 118 and the other end is made tubular to secure the end plug 120 having the rectangular end 121. A spring 122 has one end fastened to the said anchor plug 11S and the other end thereof is fastened to the spring stick 119. cap 40 with its pawls, as already described, is secured to the end of the tube 96. A ratchet disk 49 fastened to the plug 120 coacts with the latter pawl.

An end clamping plug 125 locks the tube 102 with the tube 95. A pivot 126 is supported in the latter plug. The modification of the roller just described can easily be shortened at either end by cutting ofi' a portion of the tube 95 or 96.

In Fig. 8 the tubes of the curtain roller are the same as those described in Figs. 1 to 4 and are indicated at 20, 21, 22 and 33. A clamping plug 127 locks the tube' 22 with the tube 21. The end clamping plug 125 with its pivot is the same as already described. The anchor plug 118 is the same as described and supports one end of the spring stick 130. An end plug 131 with the rectangular end 132 is fastened to the spring stick 130. An end journal and clamping plug 133 locks the tube 33 with the tube 20. The ratchet cap 40 with its appurtenances is same as already described. A spring 122 is secured in operative position, as described.

' Referring to the modification shown in Figs. 9, 10 and 11, outer paper tubes of the same outside diameter are indicated at 138 and 139. Theinside diameter of the latter tube is somewhat greater than the former. An expansible metallic tube 140 having a longitudinal slot 141 is forced into the tube 139, and an eXpansible metallic tube 142 with the longitudinal slot 143 is forced into the tube 138 and telescopes with the tube 140. A clamping plug144 is forced into the tube 140 and locks said tube 140 with the tube139. The end clamping plug 125 is shown kwith its pivot 126 as already dcscribed. A clamping plug 145 is forced into the tube 142 and locks said tube with the tube 140 and the tube 139. A spring cartridge is inserted in the roller and comprises an outer paper tube 148 which is inserted in the tube 142. An anchor plug 149 is secured in .one end of the tube 148 and a clamping and journal plug 150 is inserted in the other end of said tube. The ratchet cap 40 with its appurtenances as already described is secured to the end of the tube 138. The spring stick 119 has one end supported in the anchor plug 149 and the other end of the stick is supported by the plug 131 having the rectangular end 132. The novelty of the modification just de- A ratchet scribed consists in providing the spring cartridge Which can easily be inserted in place.

The modification shown in Fig. 12 is similar to the construction shown in Figs. 1 to 4, but instead of a pair of pulleys like 65, 66 and 75 and 76, only one pulley is used at each end of the roller.

The outer tubes 20 and 21 are indicated With their expansible metallic inner tubes 22 and 33. An end journal and clamping plug 155 is forced into the tube 22, and the journal and clamping plug 36 is forced into the tube 33. The ratchet cap 40 with its appurtenances is shown as already described. The tubular spring anchor 47 With 'the rectangular end 48 has fastened thereto the pulley 156 and the shaft 60 has fastened thereto the pulley 157. The shifting bar 52 has its anchor support 51 engaged With the rectangular end 48. A hook 160 has fastened thereto one end of the rope 161 which makes one turn around the pulley 156 and then is fastened to a bracket, not shown, similar' to 53. lIhe lower end of the shifter bar 52 is clamped to such bracket 53 as already described in connection with Fig. 1. A hook is shown at 165 which has fastened thereto one end of the cord 166. The latter makes one turn around the pulley 157 and then is fastened to a bracket similar to 80 as already described.

Having described my invention What I desire to secure by Letters Patent and claim 1s:-

1. In a roller of the character described the-combination of a pair of outer tubes of pliable material and an inner tube located Within each outer tube, the latter tubes telescoping with each other and means to lock the inner tubes together and to the outer tubes.

2. In a roller of the character described the combination of a pair of outer tubes of pliable material and of equal outside diameter with their Walls completely closed, the inner diameter of one of said tubes somewhat greater than the other, an eX- pansible inner tube With a longitudinal slot in its Wall in each of said outer tubes, the latter tubes telescoping with each other and a plug in each inner tube to lock it in place.

3. In a roller of the character described the combination of a pair of outer tubes of pliable material and of equal outside diameter with 'their Walls completely closed,

Copies of this patent may be obtained for ive cents each, by addressing the the inner diameter of one of said tubes somewhat greater than the other, a metallic expansible inner tube having a longitudinal slot in its Wall forced into each outer tube, the inner tubes telescoping With each other and a plurality of clamping plugs in each inner tube to lock the latter to the outer tubes and to each other.`

4. In a roller of the character described the combination of a pair of outer tubes of pliable material and of equal outside di ameter With their Walls completely closed, an eXpansible inner tube Within each outer tube locked to its outer tube, the latter tubes telescoping With each other and locked to each other, a telescopic shaft in the .axial center of the roller, a pulley secured to each end of said shaft, an end bearing and clamping plug forced into the outer end of each inner tube, constituting bearings for the roller, means to locate the roller to different levels, and a cord Wound around each pulley to maintain the aXial center of the roller in a horizontal plane at different levels.

5. In a roller of the character described, the combination of a shaft in its axial center to turn thereon, an anchor and journal plug in the roller constituting a bearing for said shaft and clamped to the inner Wall of the roller, an end bearing and clamping plug in the roller and at each end thereof, a tubular spring anchor supported on one end of said shaft and tightly supported in one of said clamping plugs, the other end of the shaft journaled in the clamping plug a't the other end of the roller, a shifting bar have ing a rectangular end, the latter locked With said spring anchor, a spring Within the roller with one end fastened to the anchor plug and the other end fastened to said spring anchor, a pulley fastened to each end `of said shaft, a cord Wound around each of said pulleys to maintain them at the same level When said roller is placed at different levels by means of the shifting bar, and means to maintain equal tension on each of said cords.

Signed a't the borough of Manhattan in the county of New York and State ofNeW York this 17th day of September A. D.

OTTO EDWARD ENELL. Witnesses:

A. A. Dn BONNEVILLE, H. D. JOHNSON.

Commissioner of Patents,

Washington, D. C.

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