US2853251A

US2853251A - Spindleless paper roll holder

Info

Publication number: US2853251A
Application number: US653211A
Authority: US
Inventors: Douglas M Zabriskie; William F Moore
Original assignee: Western Union Telegraph Co
Current assignee: Western Union Telegraph Co
Priority date: 1957-04-16
Filing date: 1957-04-16
Publication date: 1958-09-23
Anticipated expiration: 1975-09-23

Description

Sept. 23, 1958 D. M. ZABRISKIE ETAL 2,853,251

SPINDLELESS PAPER ROLL HOLDER Filed April 16, 1957 2 Sheets-Sheet l IN V EN TOR. I

if D.M. ZABRISKIE W. F. MOORE I U TORNEY Sept? 1953 D. M. ZABRISKIE ETAL SPINDLELESS PAPER ROLL HOLDER Filed April 16, 1957 2 Sheets-Sheet 2 INVENTOR. I o. M. ZABRISKIE w. F. MOORE ATZORNEY United States Pateae area-$1., PWDL LESS AP R. .RQPL EQLPER.

D u a ahrisk e or hval nawi li m F- M Passaic, N, JJ," assignors to The Western Union Telegraph com amww York, N; Y., a corporation of NewYoxk.

Application April 16, 1957, Serial No. 653,211 8 Claims. o 242 684) frorn, either on a through shaft or on corefspindles' w en.

fit into theopposite ends of the central'tube. 'W ith a through shaft mounting the core, (w e variations in the internal diameter thereof, normallylfits somewhatloose ly upon. the shaft with the result that. "p er roll is subject is. endwiseshifting or play during'the" feeding out of thepaper therefrom, "Also, in theabsenc'eofia tight fit ad'equate overrun braking of the rom is unotitainablej Eridl spindles ma be tapered to fit tig'htlviiiito11thI has of thecor'e'ibut suchs piridles may workiloose'in 'th fe 1 ing operation with a resultant ndwise motiori andQloss of'overrun braking.

It is important, in feeding paper, to an electrical recording-apparatus, thatthe. paper be, accurately "aligned withthe. recording mechanism. particularly in facsimile scanning recorders where any variation in the'aligninent' during. ascanning cycle may'result in undesirable weaving o f thecopy.

The present invention has for one of. its objects the provision] of a mounting for hollow, core paper rolls which does not require the use of a centralshaft or spindle bearing. i

Another object is to provide a mounting for, a paper roll which is suitable for rolls core diameters.

Still another object is to provide a spindleless paper roll mounting in, which. the roll is self -aligningwith'respect to the paper utilizingineehanism; under the paper' witlldrawing. operation.

A. still further object is to provide such a paper roll mounting in which adequate. overrun braking is iriherent'fin the construction and operation thereof.

Other objects and advantages will hereinafter appear. The invention will best be understood by referehceto the accompanying drawings in which. i

'Fig. l is a side elevation of a spindleless paper monoting mechanism embodying the presentinvntiom Fig. 2 is' a plan'view'of the paper mounting device;

Fig. 3 is a lefthand view of the mounting device, as seen in Fig.1. i 'The paper roll mounting device comprises a pair of spaced vertical plates or brackets 10, and 19' each having horizontal footed portions 11 whereby the brackets may be secured in properly spaced relation to the base 1270f the p a us to which P pe ro the, mai e ll R is to be fed. The paper. roll has a central hard tubular a m w h we rar s W W we tel Such rollsl heretofore is mounted for Withdrawal of paper therefrom in the direction shown by the arrow in Fig. 3; Each of the brackets 10 is provided With'an L-shaped lever having a vertical arm 15am a bifurcated horizontal arm 16", each 'branchof which has a paper roll engaging seat 17 adjustably carried thereby by means of the threaded shanks 1'8. Eachofth lever arms 15 is pivotedto' its bracket 16 or'10 on a'pin 19 passing through a pair of spaced lugs 20 carried by the bracket members. This leverf alrlm isibiasedoutwardlyaway from the roll R by aspiralfspri'r'ig 22 extending between a pin )23 on lever arm 15'"and thefapex'of a triangular plate 24 secured across the top ofthe lugs 20.as" by screws21." The inner edge 25 of plate" 24' servesa's afstop "t'o liinit'the outward pivotal'n'iovernent of the lever arm 15.

Thearrn 15 at its upper end is provided with an arcuate bevel 26 which'is" eng'ageable 'by a swinging lever 27;

pivoted at 28 to the bracket 10 and having a cam surface 29 forcontact withlthe bevel 2@ to cam the arm 15 from a partially actuated position into contact with the top face: 3(ifof "the bracket 10. The lever27 in this position is received in a $10131 of a boss 32 carried by the supporting bracket 10 for the purpose'of" locking the lever arm 15? in it s fully actuated vertical position. Bracket 10 at its upper end hasa rectangular opening 33 through which the paper roll supporting members may be moved out of and into position within the core of the paper'r'oll.

These paper roll supportingrnembers comprise a pair of spaced antifrictionroller's 34 rotatably carried on shafts SS c la nped in \/,-notches in a cross-bar 36 by a clamping plate 37, through the use of screws 38. The bar 36 is seeured to the pivoted lever arm 15, as by screws 3d,

It will be notedthat the'sh'afts 35 are disposed at "a pi perroll for a'purpos e which will appear herei u after.

"The right and lefthand bracketslt) and 10' and their assembliesiare identical except that the righthand assent bly as seen in Fig. l'is' provided with a braking strip 40 secured 'to the inner face of the bracket and extending iii a s'ubs jtantially radial direction relative tothe end of the" rollR'so 'as'to face theend of the paper roll throughout" the thickness of the tube 13 and the paper contained there on of paper roll. The face of the strip '40 is preferably rounded "or beveled to limit the area of contact thereof with the end of the paper roll andthe" core, as

their outwardly pivotedposition by the spring 22 as" shown i'ri the dotted'line position a in lfig. 1, so that thej paper supporting rollers are disposed substantially."

within the openings 3; of

bracket members

10 and 10" with"th ej roll engaging'seats 17elevated to the dotted line posit'ionshoyvn infFig. 1 Thebper ation of loading at roll inthe mounting apparatus comprises lowering the roll between the brackets '10 and 10f onto the seats 17 fwhich' are thus depressed t'o the dotted line position of Fig. 3 with the consequent inward'moveinent ofthe lever "15 and therolle'r s'igl"carriedthereby so as to position 'the rollers' 34 partially within the core 13. The levers '15 at thistime will occupy 'substaiitiallythe dotted line position fl? shown inFig. 1. The cam levers 27 are then swung ve m nses? h am e es .6 he b a a se he ro le s fit'j ul n o h u e. n b'l ck hl 'f' m t ere n b e a emen a 1 h' h eakin notches '31. This'fin'al movement of levers'15 1o are a low the wr im 9 theme SY PP s Ht ribr sa seme o s as'. t

:5 a r t-on whi the P pe on.

slight angle; as 'viewe diri plan (Fig 2) to the "axis of' The slight angular displacement of the shafts of rollers 34 from the axis of the paper roll R causes the paper roll, when it is rotated by withdrawal of paper there from, to creep to the right, Figs. 1 and 2, so as to bring the right end thereof into engagement with the braking strip 40, whereupon axial slippage occurs on continued rotation of the paper roll. The axial component of movement, however, exerts a continued pressure of the roll against the braking strip. The angular roll displacement and braking strip 40 thus serve the dual function of accurately aligning one edge of the paper with the paper utilizing apparatus, such as a facsimile recorder, and the braking action prevents overrunning of the roll when the pulling movement of the paper ceases, so that the paper Web is retained tight between the roller and the paper utilizing apparatus. This is particularly important where intermittent fast feeding is desired as for instance where the final feed of the paper after a recording operation is rapid for the purpose of quickly bringing the end of the web into severing position.

In unloading a used roll it is only necessary to grasp the empty core with one hand and swing the levers to their unlocked position with the other, whereupon the rollers 34 are completely retracted from the core by the spring 22. The empty core may then be lifted from the mechanism.

It will be understood that various changes and modifications may be made in the mounting means disclosed without departing from the spirit or essential attributes of the invention, which is not to be regarded as limited except as indicated by the scope of the appended claims.

What is claimed is:

l. A spindleless holder for a paper roll having a hollow central core comprising a pair of supporting members spaced apart to receive a roll of paper endwise therebetween in mounting position, a pair of spaced anti-friction rollers carried by each of said supporting members and normally disposed out of the path of movement of said roll into mounting position, said supporting members being movable towards each other to insert said rollers internally of each end of said hollow core, at least some of said rollers having their axes disposed at an angle to the axis of said core whereby rotation on said rollers will cause axial movement of said roll in one direction, and means engageable by the forward end of said roll in said direction of movement for limiting said axial movement whereby to align said forward end of said roll with said last mentioned means.

2. A spindleless holder for a paper roll having a hollow central core comprising a pair of supporting members spaced apart to receive a roll of paper endwise therebetween in mounting position, a pair of spaced anti-friction rollers carried by each of said supporting members and normally disposed out of the path of movement of said roll into mounting position, said supporting members being movable towards each other to insert said rollers internally of each end of said hollow core, at least some of said rollers having their axes disposed at an angle to the axis of said core whereby rotation on said rollers will cause axial movement of said roll in one direction, and a braking strip disposed in the path of said axial movement of said roll and extending partially across the end of said roll for limiting said axial movement whereby to align said forward end of said rollwith said last mentioned means and brake the unreeling movement of said roll. a

3. A spindleless holder for a paper roll having a hollow central core comprising a pair of pivoted supporting members spaced apart to receive a roll of paper endwise therebetween in mounting position, a pair of spaced antifriction rollers carried by each of said supporting members, spring means normally biasing said supporting members outwardly away from each other so as to retain said rollers out of the path of movement of said roll into mounting position, said supporting members heing movable towards each other to insert said rollers internally of each end of 'said hollow core, means for retaining said rollers in said inward roll supporting position, at least some of said rollers having their axes disposed at an angle to the axis of said core whereby rotation on said rollers will cause axial movement of said roll in one direction, and means engageable by the forward end of said roll in said direction of movement for limiting said axial movement whereby to align said forward end of said roll with said last mentioned means.

4. A spindleless holder for a paper roll having a hollow central core comprising a pair of pivoted supporting members spaced apart to receive a roll of paper endwise therebetween in mounting position, a pair of spaced antifriction rollers carried by each of said supporting mcznbcrs, means normally biasing said supporting members outwardly away from each otherso as to retain said rollers out of the path of movement of said roll into mounting position, means engageable by said roll in mounting postion for moving said supporting members towards each other to insert said rollers internally of each end of said hollow core, means for retaining said rollers in said inward roll supporting position, said rollcrs having their axes disposed at an angle to the axis of said core whereby rotation on said rollers will bias said roll in one axial direction, and means engageable by the forward end of said roll in said direction of bias for applying a braking force to said roll whereby to prevent overrunning thereof on cessation of an unreeling force.

5. A spindleless holder for a paper roll having a hollow central core comprising a pair of brackets spaced apart to receive a roll of paper endwise therebetween in mounting position, a lever pivotally carried by each of said brackets, a plurality of spaced antifriction rollers carried by each of said levers, spring means normally biasing said levers outwardly out from each other so as to reain said rollers normally disposed out of the path of movement of said roll into mounting position, roll engaging means associated with each of said levers and normally disposed in the path of movement of said roll into mounting position for engagement by said roll to actuate said levers toward each other to insert said rollers internally of each end of said hollow core, means for retaining said rollers in said inward roll supporting position, at least some of said rollers having their axes disposed at an angle to the axis of said core whereby rotation on said rollers will cause axial movement of said roll in one direction, and means engageable by the forward end of said roll in said direction of movement for limiting said axial movement whereby to align said forward end of said roll with said last mentioned means.

6. A spindleless holder for a paper roll having a hollow central core comprising a pair of brackets spaced apart to receive a roll of paper endwise therebetween in mounting position, a lever pivotally carried by each of said brackets, a pair of spaced antifriction rollers carried by each of said levers, spring means normally biasing said levers outwardly out from each other so as to retain said rollers normally disposed out of the path of movement of said roll into mounting position, roll engaging means associated with each of said levers and normally disposed in the path of movement of said roll into mounting position for engagement by said roll to actuate said levers partially toward each other to insert said rollers internally of each end of said hollow core, other means for completing the inward movement of said rollers and removing said roll engaging means from contact with said roll, means for retaining said rollers in said inward roll supporting position, at least some of said rollers having their axes disposed at an angle to the axis of said core whereby rotation on said rollers will cause axial movement of said roll in one direction, and means engageable by the forward end of said roll in said direction of movement for limiting said axial movement whereby to align said forward end of said roll with said last mentioned means.

7. A spindleless holder for a paper roll having a hollow central core comprising a pair of brackets spaced apart to receive a roll of paper endwise therebetween in mounting position, a lever pivotally carried by each of said brackets, a pair of spaced anti-friction rollers carried by each of said levers, spring means normally biasing said levers outwardly out from each other so as to retain said rollers normally disposed out of the path of movement of said roll into mounting position, roll engaging means associated with each of said levers and normally disposed in the path of movement of said roll into mounting position for engagement by said roll to actuate said levers partially toward each other to insert said rollers internally of each end of said hollow core, manually operable cam means engageable with said levers for completing said inward movement of said rollers and for removing said roll engaging means from contact with said roll, means for retaining said rollers in said inward roll supporting position, at least some of said rollers having their axes disposed at an angle to the axis of said core whereby rotation on said rollers will cause axial movement of said roll in one direction, and means engageable by the forward end of said roll in said direction of movement for limiting said axial movement whereby to align said forward end of said roll with said last mentioned means.

8. A spindleless holder for a paper roll having a hollow central core comprising a pair of brackets spaced apart to receive a roll of paper endwise therebetween in mounting position, an L-shaped lever pivotally carried by each of said brackets, a pair of spaced anti-friction rollers carried by one arm of said levers, spring means normally biasing said levers outwardly from each other as to retain said rollers normally disposed out of the path of movement of said roll into mounting .position, the other arm of said lever being normally disposed in the path of movement of said roll into mounting position for engagement by said roll to actuate said levers toward each other to insert said rollers internally of each end of said hollow core, means for retaining said rollers in said inward roll supporting position, at least some of said rollers having their axes disposed at an angle to the axis of said core whereby rotation on said rollers will cause axial movement of said roll in one direction, and means engageable by the forward end of said roll in said direction of movement for limiting said axial movement whereby to align said forward end of said roll with said last mentioned means.

References Cited in the file of this patent UNITED STATES PATENTS 855,038 Ball May 28, 1907 1,722,508 Stone July 30, 1929 2,163,010 Richards et a1. June 20, 1939