US1566441A

US1566441A - Web guide

Info

Publication number: US1566441A
Application number: US756779A
Authority: US
Inventors: Smothers Robert Jarvis
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-04-02
Filing date: 1924-12-18
Publication date: 1925-12-22
Anticipated expiration: 1942-12-22

Description

Dec. 22, 1925- 1,566,441

R. J. SMOTHERS WEB GUIDE Original Filed April 2, 1924 INVENTOR.

' jZaZaerJJSmot/zerg BY W z 6 ATTORNEY.

Pate nted Dec. 22, 1925. I

UNITED STATES ROBERT JARVIS SMO'IHERS, OF HOLYOKE, MASSAGHUBETTS,

assrenoa r0 .umns'r.

ROBINSON, OF HOLYOKE, MASSACHUSETTS.

WEB GUIDE.

Original application filed April 2,

1924, Serial No. 703,776. Divided and this application flled December 18, 1924. Serial No. 756,779.

To (17/ whom it may concern."

Be it known that 1, ROBERT J. SMOTHERS, a citizen of the United States, residing at Holyoke, in the county of Hampden and State of Massachusetts, have invented certain new and useful Improvements in Web (luides. of which the following is a speciiication.

This invention relates to a web guide and is a division of the subject matter of my application filed April 2, 192st, Serial Number 703,776, and the invention has for its object to provide, in a manner hereinafter set forth, a web guide for directing the web upon the impression cylinder of a printing press at the desired point, so that the web will not contact with a transfer roll before it is directed onto the impression cylinderto prevent any possibility of the web being blurred or damaged from the color on the transfer cylinder, under such conditions insuring satisfactory printing when the work is completed.

Further objects of the invention are to provide, in a manner as hereinafter set forth, a web guide forthe purpose referred to, which is simple in its construction and arrangement, strong, durable, compact, readily adjustable, thoroughly efficient in its use, readily installed with respect to the cylinders of a printing press, and comparatively inexpensive to set up.

With the foregoing and other objects in view, the invention consists of the novel construction, combination and arrangement of parts, as hereinafter more specifically described and illustrated in the accompanying drawings, wherein is shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which come within the scope of the claims hereunto appended.

In the drawings wherein like refer ence characters denote corresponding parts throughout the several views Figure 1 is a side elevation of a web guide, in accordance with this invention. Figure 2 is a sectional elevation thereof. Figure 3 is a section on line 3-3, Figure 2..

Figure 4 is a section on line 44, Figure 2. 2

Referring to the drawings in detail, the

guide consists of a pair of vertically adjustable telescopic standards each formed of an adjustable upper section 1 and a fixed lower section 2. The upper end of the section 1 is enlarged, as at 3, and the said enlarged upper end is formed centrally with a cham-' ber ft, in which is arranged a worm 5, carried by a shaft 6, provided with a hand wheel 7. The enlarged upper end 3 of the section 1 is formed with a pair of horizontal openings 8, which c0mmunicate with the chamber 4 and each of which has arranged therein a bearing 9 for the shaft 6.

The enlarged upper end 3 of the section '1, above the chamber 4, is formed with a segment-shaped slot 10, through which extends a semi-circular rack bar 11, meshing with the worm 5, and by this arrangement when the shaft 6 is actuated the engagement of the worm 5 with the teeth of the bar 11 will shift the latter for the purpose of adjustably positioning the web guiding member at the desired inclination. The bar 11 is carried by said guiding member.

The web guiding member consists of a rectangular plate 12 formed with a pair of aligning oppositely extending

slots

13, 14, through which depends a pair of shifting

members

15, 16, each having its lower portion formed with an opening 16, having the wall thereof: threaded. The threads within the shifting member 15 are oppositely disposed with respect to the threads in the. shifting member 16. Carried by the member 15, at the upper end thereof, is a retaining bar 17, which is disposed upon the upper face of the plate 14 and extendslengthwise with respect thereto. Secured to the upper end of the member 16 is a retaining bar 18, which is arranged over the upper face of the plate 14 and extends lengthwise with respect thereto.

Formed integral with the lower face of the plate 12, centrally thereof, is a hanger l9,r rovided with a passage 20 and an openi2r(i)g 21 which communicates with the passage Extending through the passage 20 is a toothed operating shaft 22 for simultaneous. ly shifting the members-1'5 and 16 towards and away from each other. The shaft 22, centrally thereof, is formed with a periphera1 groove 23 into which extends a retaming pin 24, which threadedly engages with the wall of the opening 21. The pin 24, in conweb 27. Suitable means nection with the groove 28, arrests length Wise shifting of the shaft 22 relative to the ban er'19.

T e shaft 22 is formed with a pair of threaded end

terminal portions

25, 26 and with the threads of the portion 25 opposite- I disposed with respect to the threads of the portion 26. The threaded

portions

25 and 26 engage with" the threads of the

members

15 and 16, and the arrangement of the threads is such that when the shaft 22 is revolved in a clockwise direction the

members

15 and 16 will be shifted tbwards each other and when revolved in an anti-cloekwisedirection the

members

15 and 16 will be moved away from each other, whereby the retainlng bars can be set at the desired position, and such osition would be that the distance between t e bars would equal the width of the web 27, so that the travel of the web 27 over the guiding member or late 12 will be such that its side edges wi 1 be en aged by the

bars

17 and 18, whereby the we will be guided, due to the inclination of the plate 12, to be properly positioned upon the impression cylinder and free of the transfer cylinder.

The shaft 22 rejects outwardly from each side of the ate 12 and is provided at each end with a hand wheel 28 for the convenient operation thereof. The lower end of the plate 12 is provided with means to support an idler roll 29 against the lower face of which travels the web 27, and supported from the upper or forward end of the plate 12 is a pair of superposed tension--

ing rolls

30 and 31 between which passes the is provided for adjusting the roll 30. I

Theconstruetion provides means for pcsitionin the plate 12 not only at the desired height, ut also at the desired inclination, so that the web 27 will be guided for the purpose of properly positioning it upon the impression cy inder prior to the action of the transfer cylinder of the press and which revents the web from being blurred or ama ed from the color, and it is thought that t e many advantages of a web guide, in accordance with this invention, can be readil understood, and although the preferre embodiment of the invention is as illustrated and described, yet it is to be understood that changes in the details of construction can be had which will fall within the scope of the invention as claimed.

What I claim is 1. A -web guide for the pur ose set forth, comprising an angularly a justablc web supporting plate, and a pair of web retainers adjustable towards and away from each other and positioned over the upper face of the plate.

2. web guide for the purpose set forth, comprising an angularly adjustable web su ortln plate, a pair of web retainers adustab e towards and away from each other and positioned over the upper face of the plate, and vertically adjustable supporting means for the plate.

3. web guide for the pur ose set forth, comprising an angularly a justable web supporting plate, a pair of web retainers adjustable towards and away from each other and positioned over the upper face of the plate, an idler roll at the rear end of said plate, and web tensioning means at the forward end of said plate.

4. A web guide for the purpose set forth, comprisin an angularly adjustable web supporting p ate, a pair of web retainers adjustable towards and away from each other and positioned over the upper face of the plate, vertically adjustable supporting means for the plate, an idler roll at the rear end of said plate, and web tensioning means at the forward end of said plate.

5. A web guide for the purpose set forth, comprising a web supporting plate, means for angularly adjusting said plate, a pair of web retainers positioned over said plate, means for adjusting said retainers towards and away from each other, supporting means for said plate, an idler roll supported over said plate at the rear end thereof, and

web tensioning means at the forward end of said plate.

In testimony whereof, ture hereto.

ROBERT JARVIS SMQ'IHERS.

if afix my signa-