US901517A

US901517A - Strip-feeding mechanism.

Info

Publication number: US901517A
Application number: US440799A
Authority: US
Inventors: Charles E Brooks
Original assignee: ROTH TOOL Co B
Current assignee: B ROTH TOOL Co; ROTH TOOL Co B
Priority date: 1908-03-31
Filing date: 1908-06-29
Publication date: 1908-10-20
Anticipated expiration: 1925-10-20

Description

C. E. BROOKS.

STRIP PEEDING MECHANISM.

APPLICATION FILED JUNE 29, 1908.

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C. E. BROOKS.

STRIP PEEDING MECHANISM.

APPLICATION FILED JUNE 29,1908.

901,517. Patented 00t.20,1908.

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UNITED STATES PATENT oEEicE.

CHARLES E. BROOKS, OF ST. LOUIS, MISSOURI, ASSIGNOR TO B. ROTH TOOL COMPANY, OF

ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

STRIP-FEEDING MECHANISM.

Specification of '.I'Jetters Patent.

Patented Oct. 20, 1908.

Original application filed March 31, 1908, Serial No. 424,308. Divided and this app1icaton led June 29, 1908. Serial No. 440,799.

To all 'whom it may concern:

Be it known that I, CHARLES E. BROOKS, a citizen of the United States, and a resident of the city of St. Louis and State of Missouri, have invented a new and useful Improvement in Strip-Feeding Mechanisms, of which the following is a specification.`

The Subj ect matter of the present application is divided out of an application for patent for an improvement in embossing and printing presses, Serial N o. 424,308, filed by me March 31, 1908.

The resent invention relates to the mechanism or feeding the wiping paper and has for its principal objects to lntermittently `feed a predetermined len th of paper, which length may be varied at p easure.

Another object is to provide a ainst the cresing of the wiping paper on t e wiping p The invention consists principally in a belt operatively connected to the actuating mechanism to be moved intermittently and arranged to frictionally engage the supply roll.

It also consists in means for taking up the slack of the waste paper on each side of the Wi ing pad.

t` also consists in the combinations and arran ements of parts hereinafter described and c aimed.

Figure 1 is a vertical section through an embossing and printing press embod ing m invention, ortions bemg omitted ig. 2 1s an enlarge isometric view of a portion of the machine showing the paper str1 feeding device; Fig. 3 is a fragmentary e evation of a portion of the rack-actuating mechanism for the paper stri feeding device; Fig. 4 is a detail view part y in section showing the winding mechanism andl slack taken u for the paper strip; and, Fig. 5 is a detai view of In the operation of an embossin and printing press of the type full descri ed in my copending ap lication for letters Patent No. 424,308, iledpMarch 31, 1908, the die is mounted on a carrier A which is arranged to be reciprocatcd horizontally by the actuating mechanism. L The mechanism for inking the die is located in the rear portion of the machine and is arranged to ink the die in its rearmost position. The plun er or im ression mechanism is located at t e front o the I machine and is arranged to cooperate with l the die in its foremost osition. Above the path of the die carrier 1s the wi ing pad B, whose function is to remove/al excess ink from the die. This wiping ad is intermittently reciprocated vertical y. Its connec-l tions to the actuatingmechanism are such that it remains in its lowermost position while the die carrier is moved past it in traveling'from the inking mechanism to the impression point. The lower portion of the wiping pad is more or less resilient and vin practica operation is partially covered by a strip of paper commonly known as the wiping paper or strip. As the die is carried past the wipin pad, the excess ink thereon is wiped off y the paper, whereupon the Wiping pa er is fed to brin a fresh ortion thereo into operativeire ation to t e die. All of these constructions and operations are fully4 described in my copending application, and I consider it unnecessary to. describe them in further detail.

The wiping paper is delivered in a continuous strip 1 from a supply roll 2 conveniently located above the wiping ad. From the supply roll the strip of win lng paper asses downwardly around the wiping :pa and thence u wardly to a convenientl located winding rum 3. The supply roll as a. hollow core through which extends a horizontal rod or bar 4 whose ends are suitably supported in the frame 5 of the machine, whereby the sup ly roll is journaled or rotatably mounte on said rod. Journaled in the framework parallel with said rod and on opposite sides thereof are two spindles 6, 7.

One of these last mentioned splndles is rovided with a coiled sprin 8, one end of W 'ch is fixed to the framewor and the other end of which is xed to said spindle 6, whereby said coiled spring tends to turn said spindle backwardly. Said s indle 6 also has one end of a friction strap or and 9 fastened thereto and wound around it. The other end of this friction strap is fastened to the other arallel spindle 7 around which it is wouncll The spindle 7 (hereinafter called the feed spindle) has a pinion 10 fixed thereon which meshes with a rack 11 which is connected to the actua'tin mechanism of the machine so as to be reciprocated intermittently thereby. In the construction illustrated in the drawing,

`supp equal to the amount fe scribed, before the back stroke of the feedA strip on a rock shaft 15 which is operatively connected to the main driving shaft. .i The crank larm 14 has a longitudinal slot 16 in which fits amember 17 of the locking device which fastens the rod to the crank arm. By shifting this member longitudinally in the slot, the strokeof the rod, and, consequently,F the strokel of the feeding rack are varied. Tn or- -der to keep the rack 11 in operative relation to the pinion or gear whee 10 of the feed spindle 7 the rack extends through a guide 18 that fis journaled on or concentric with said feed spindle. By this arrangement, the coiled springen the spindle 6 keeps the friction strap wound' taut so that said strap is keptA in Contact with the peripher of the ly` roll. At the same time, t e coiled sprindg allows the strap to unwind from the s in e 6 and rewind on the feed spindle 7 when the actuating mechanism moves the rack to turn said feed spindle. On account -of` the frictional engagement of the strap against the periphery of the supply roll, the

forward movement of the strap feeds a definite length of the wiping strip, which length depends upon the stroke of the feed rack. This feed movement of the stri is effected during the movement o the win ing drum to take up a len th of waste paper as hereinafter derack. In consequence of this relation, the friction strap is wound back onto its spring spindle idly or Without effect upon the roll, except, however, ply roll far enough to take up any slack in t e on the fee side of the wiping pad.

As stated above, the strip'of wi ing paper passes under the ing pad and t ence to a winding drum. This winding drum 3 is fully described and illustrated in said application for patent Serial No. 424,808'. It comprises a druml or core 'journaled on the framework i of the machine and operatively connected to the actuating mechanism byya friction clutch.

l loosely journaled Asl illustratedin the accompanying drawing, the core of the winding-drum has a inion 19 thereon, 'whic pinion meshes Witlra rack 20 which is connected by alink or rod 21 to an arm 22 on the above mentioned rock shaft 15 that is adapted to be `oscillated by. the actuating mechanism. Preferably, the rock arm 22A is slotted longitudinally so that, the connection of the link thereto may"T be adjusted at pleasure so as to v the stroke pinion 19 is flanged orenlarglld, and provided with v'pawls 23-on its face w 'ch overlap and coperate with a ratchet Wheel or ring 24 that is loosely ournaled. in the shaftorcore of the Win One face-of thisratchet y This lever :ls connected by a rod 13 to a crank armylffxd .25 by a -suitable spring varied by any suitable a j [movement of its that it will rewind the su ofthe rack. The end of thel against the bears against 'the face' of a second ring or Vwheel 25 which has ratchetteeth in its periphery and is fixed to the core ofthe shaft. Pawls- 26 are mounted on a fixed member of the frame in position to coperate with the ratchet teeth of said last mentioned rin .The twoy ratchet rings abut against eac other, and constitute the members of a frictionA clutch.- The loose member 24 of the clutch is pressed against the fixed member whose pressure is usting device, such as that illustrated in said application No.

' vBy the arrangement just described, the rock shaft 15 is intermittenti f oscillated by the actuating mechanism. he motion of the rock shaft causes a reciprocatory motion ofthe rack 20 Whichin turn transmits rotary motion to the pinion 19. The motion of the )inion is transmitted through its' pawls to the friction `clutch to yeffect the rotation of the 'winding drum. When the `rotation of the winding drum has proceeded far enough to take u the slack of the waste paper, the friction c utch yields, ermitting the continued o'ose member While the fixed member remains stationary. In this position, the pawls of the frame lock the fixed member of the clutch against backward rotation, so that the' return stroke of the rack restores the loose member of the clutch idly to its initial position. In order to vary the feed, it is only necessary to shift the connecting device in the longitudinal slot of the rock arm 22. The arts are so correlated to the actuating mecfianism that the feed movement of the supplyroll begins later and stops earlier than the movement of the waste paper Winding mechanism, this Winding movement ceasing before the wi ing pad reaches its lowermost osition. he wiping pad thus tends to ta ie up any slack and the Wi ing strip is thus kept smooth and unwrinkle below the wiping pad.` l

While Vthe present invention is particularly applicable in connection with the movements` of the wiping stri of an embossing and printing press, it is o viously capable of general use and I do not wish to restrict myself to the specific 1construction herein described.

What l clainras my invention and desire to secure by Letters Patent is: 1. A strip feeding device comprising a s indie and means for intermittently rotating t` e same in opposite directions, a second spindle having a spring tending to turn it in a-certain direc'tic'a'n,` Iasupp'ortfor the stri suppl roll, and af strap-.connected t0 sai spin es, respectively, and ada ted to bear periphery of the rol of paper. i K, A stri feeding'mechanism comprising a support orrotatably mounting a supply roll, a feeding strap mounted ,to permanently rewinding of saidstrip onto said roll.

3. A str1 feeding mechanism comprising 'a support. or rotatably mounting a supply roll, a rotatable spindle adjacent to said su port, a spring tending to rota-te said spind e, a friction strapy connected to said spindle, and means for reciprocating said strap in contact with said supply roll.

4. A stri feeding mechanism comprising a support or rotatably mounting a sup )ly roll, two rotatably mounted spindles parallel therewith and on opposite sides thereof, ayfriction strap connected to said spindles,

means tending to turn one of said spindles, and means for intermittently rotating the other spindle to reciprocate said strap in contact with the supply roll.

5. In a strip feeding mechanism, a support for rotatably mounting a supply roll, a rotatable spindle adjacent to said support, a spring tending to rotate saidspindle, a friction strap connected to said spindle, means for reciprocating said strap in contact with said` suppl roll, and means for preventing thlei rewinf ing `of the strip onto the supply ro 6. A strip feeding mechanism comprising actuating mechanism, a sup ort for rotatably mounting a supcply ro a rotatable spindle adj-acentto sai support and having a spring tendin to rotate it, a friction strap connected to said spindle, means for reciprocating said strip in contact withsaid supply roll, a-winding drum, and intermediate connecting devices for transmitting motion from said actuating mechanism to said drum, saidV devices comprising an automatically yielding member.

7. A strip feeding mechanism comprising actuating mechanism, a sup ort for rotatably mounting a supcply ro ,a rotatable spindle adjacent to sai support and having a spring tending to rotate it, a friction strap connected to saidspindle, means for reciproeating said strap in contact with said supply roll, a winding drum, and intermediate connecting devices for transmitting motion from said actuating mechanism to said drum, said devices comprising a friction clutch adapted to slip when the strip becomes taut.

8. An embossing and printing press comprising actuating mechanism, a wiping pad o eratively connected thereto to be actuated t ereby, mechanism for feeding wiping paper, and mechanism for Winding the waste wiping paper, said feeding and winding mechanism e actuating mechanism, said feeding mechan-l ism comprising a suplport for rotatably mounting the supply ro a rotatable spindle adjacent to said support ,and having a s ring tending to rotate it and a friction ban connected to said spindle and adapted to reciprocate in contact with the supply roll, and' said winding mechanism com rising a winding drum and a friction clutc between said drum and the actuating mechanism.

.In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses, this 27th day of June, 1908.

CHARLES E. BROOKS. Witnesses:

JAMES A. CARR, J. B. MEGowN.

ing operatively connected to said