US1429049A

US1429049A - Paper-folding machine

Info

Publication number: US1429049A
Application number: US486966A
Authority: US
Inventors: Harrison A Selfridge
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-07-23
Filing date: 1921-07-23
Publication date: 1922-09-12
Anticipated expiration: 1939-09-12

Description

H.-A. SELFRIDGE.

PAPER FOLDING MACHINE.

APPLICATION HLED IULYZB, 192].

1,429,049. t t fi p 12,1 22

H. A. SELFRIDGE.

PAPER FOLDING MACHINE.

APPLICATION FILED IULY23,1921.

Patented Sept. 12, 1922.

2 SHEETS-SHEET 2.

- To all whom it may comer-n:

Patented Sept. 12, 192 2.

miuso'n A. snmi'mnen, or

NEW HAVEN, CONNECTICUT.

I PAPER-FOLDING MACHINE.

Application filed July 23,

Be it known that I, HARRISON A. SEL- FRIDGE, a citizen of the United States, residing at New Haven, in the county of New Haven and State of Connecticut, have invented a new and useful Improvement in Paper-Folding Machines; and I do hereby declare the following, when taken in con-' nection with the accompanying drawings and the characters 'of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this application, and represent, in V Fig. 1 a plan view of a paper folding machine constructed in accordance with my invention;

Fig. 2 a front view of the same.

Fig. 3 a side view of the same.

Fi 4 a sectional view on the line 4-4 of F1gure'2, showing the slides moved upward.

Fig. 5 a similar view showing the slides 7 mg slide 26, the inner corner 27 ofits upmoved downward.

Figs. 6 and 7 strips of paper folded upon the machine.

This invention relates to improvement in paper folding machines and particularly to machines for folding paper for use in con-v nection with pleating fabric. In the more eneral custom of pleating fabric, a strip of fieavy aper is first folded on the lines desired or the pleating of the fabric, the

fabric is then laid on this paper strip and pressed. It is generally customary to score the paper strips at the point where it is to. be bent, but this scoring weakens the strip, and, furthermore, the scoring occupies considerable time, as it must be done with care,

so that the folds shall be accurate.

The object of this invention is to produce a machine by which a strip of paper ,may be folded either up or down, according to the character of the pleats desired, and the invention consists in the construction as hereinafter described and particularly recited in the claims.

The strip of paper, to be folded, passes between a clamping-member -10 fixed at opposite. sides to uprights 11 mounted upon a suitable base 12 and a corresponding movable member 13, Which is guided at opposite ends by pins 14, the lower ends 15 of which ,are threaded for engagement with the fixed member. "These pins have attached to their

upper ends arms

16 and 17 connected at vided to guide the slide vertically.

1921. Serial No. 488,966.

the paper strip may be advanced, The

1paper is fed through the gripping-

members etween rolls

19 and 20, one of wh1ch is pro--- vided with a-gear .21 meshing with a segmental rack 22 provided with an operatinghandle 24, so that, by moving the handle, the rolls W111 be turned to feed the paper between the clamping-members. As ring pawl 25 is provided to prevent the bac ard movement of the rolls. v

Mounted on the fixed-memberlO is a fold- 'fixed-member, and mounted on the movablemember 13 is a'corresponding slide 28, having the lnner corner 29 of its lower end slightly beveled and adapted to project be-.

yond the upper face of the fixed-member. The slide 26 ,is formed with a series of vertical slots 39, through which guide studs 40 extend into engagement with the clamping member 10, a collar or washer 41 being pro- The slide 28 is also formed with a series of vertical slots 42, through which guide studs 43 extend into engagement with the clamping member 13, a collar or washer 44 bein provided to guide the slide verticall hese slides are connected together at t eir ends by

plates

30 and 31 provided with outwardly-projecting lugs 32, to which are attached links 33 connected at their lower ends to levers 34, which in turn are fixed to atransverse rock-shaft 35, to which is also aifixed upwardly-projectinglevers 36 connected at their upper ends by .a cross-bar handle 37, so that, by the movement of the handle 37 backward or forward, the

slides

26 and 28 will be moved up or down.

The strip of, aper is assed between the feed-rolls 19 an 20 and between the clamping-

members

10 and 13,-so as .to yond the outer faces thereof gag'ect been the .ingirbox-pleatin paper is in position, the pin-operating handle 18 will be shifted to force the clampingmember 13 downward upon the paper, against the fixed member 10. If an upward bend is. to be given the paper, the handle 37 will be moved rearward, which moves the

slides

26 and 28 upward, causing the slide 26 to bend the paper upward, as indicated in Figure 4 of the drawings, and the beveled edge prevents the paper from breaking at the bend. After this bend is made, the pin-"operating handle 18 is'again shifted to separate the clamping-members, and the handle 24 is turned to feed the paper to the desired extent for the next bend; the paperis again clamped in position, and if the next bend is to be a downward one, as indicated in Figure 5 of the drawings, the handle 37 will be moved forward, which will depress the slides and bend the'paper downward, and these operations are continued until the desired strip is formed, and as indicated in Figures 6 and 7 of the drawings, these strips varying according to whether the strip isto be used for side-pleator accordian-pleatin ith this mac ine, the paper is fol ed on straight lines, the folds are parallel and the strip is folded without breaking the paper and the operation is performed with much less time than whendone by hand.

I claim:

1. A paper folding machine, comprising a fixed clamping-member, a movable clamping-member above the same, each having a horizontal clamping-face and a vertical wall, means for feeding a strip of paper between the clamping-members, a slide connected with the outer face of the vertical wall of each of said clamping-members, and means for moving the said slides up or down beyond the meeting faces of said clampingmembers.

2. A machine for folding paper, comprising a fixed clamping-member and a movable clamping-member, each having a horizontal clamping-face and a vertical wall, means for connecting them together, means for feeding a strip of paper between the said clamping-members, folding slides movably mounted upon the outer faces of the vertical walls of the said clamping-members, the said slides connected together, and means for moving the said slides up or down beyond the meeting faces of said clampingmembers.

3. A machine for folding paper comprising a fixed clamping-member and a movable ing a fixed clamping-member and a movable clamping member, each having a horizontal clamping-face and a vertical wall, means for coupling the said clamping-members together, means for feeding a strip of paper between the said clamping-members, a slide movably mounted upon .the outer face of the vertical wall of each of the said clamping-members, said slides connected together at their ends, links connected with said slides, levers connected with the lower ends of said links, a rock-shaft upon which said levers are mounted and means for turning the said rock-shaft, whereby the adjacent edges of the said slides are moved beyond the horizontal faces of the said clampingmembers. i

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

HARRISON A. SELFRIDGE.

Witnesses:

MALCOLM P. NICHOLS. FRnonRIo C. EARLE.