US1093694A - Book-sewing machine. - Google Patents

Description

J. GRIESINGEEL BOOK SEWING MAGHINE.

APPLICATION FILED NOVA, 1912.

1,093,694. fPatentea Apr. 21, 1914b 2 SHEETS-SHEET 1.

flfnesses J. GRIESINGER.

BOOK SEWING MACHINE APPLIOATIQN 11.31) NOV. 4, 1912.

Patented Apr. 21, 1914.

$765565 @Vehfa":

a? wig-fi 1 UNITED str TEs PATENT OFFICE.

JOHN enrnsmenn, or LOS mamas, CALIFORNIA.

BOOK-SEWING MACHINE.

To all whom it may concern Be it known that 1, JOHN Gmnsmenn, a subject of the Emperor of Germany, reslding in the city-of Los Angeles, State of California, have invented a" new and useful Book- Sewing Machine, of which the follow ing is a specification. I Theobject of my present inventionis to provide a machine capable of sewing together with thread orother similar material in successively added layers of either equal or varying thickness any number of leaves or sheets of paper or other similar material without. need of their being folded, and .to produce therefrom books that will open with approximately the same flexibility as do' those sewed through the folds of their signatures. This I .accomplish by combining with the frame of the stitch making mechanism of a" sewing machine means to maintain the forming book in such a position with relation to the sewing needle that a straight line upon the top sheet thereof, drawn from the point of entrance of the needle and at right angles to the plane of the back of the book,

always forms with the line. of the needle an angle of less than ninety degrees. In practice this angle varies from about forty-five degrees to sixty-five degrees, the exact inclination selected determining the depth of the stitch into the forming book, and the number of layers sewed through at each stitch, and being indicated by the nature and thickness of the sheets or leaves of the book, so as to admit'of flexible opening thereof.

A further object is to provide a book sew.- ing mechanism of the character-stated that can be constructed without any great alteration'of sewing machines now on the market, thus lessening cost of manufacture of the machine. I

Other objects and advantages may hereinafter appear.

The invention consists in the various parts, combinations of parts, and details of construction, described in connection with the accompanying drawings and then definitely pointed out in generic and also in more limited claims. a

Referring to the accompanying drawings,

, which illustrate the invention, Figure 1 1s a view partly in side elevation, and partly.

in section on line a2 x of Fig. 2, showing the invention applied to a well known make of sewing machine, only so much of the sewing machine .proper being shown as is Specification of Letters Patent. Application filed November 4, 1912. Serial 110.72%),492.

- trall the ear-ing 8 when the follower plate 5 is Patented Apr. 21,

necessary to illustrate the application of the invention thereto. Fig. 2 is a plan view of the parts shown in Fig. 1, the head of the sewing machine being broken away to show underlying parts. Fig. 3 is a cross section of the pivoted portion of the book-holdingcarriage on line m -w of Fig. 1. Fig. 4 is a plan view of .the pivoted portion of the book-holding carriage. Fig. 5 is a section on line m -m of Fig. 4. Fig. 6 is a broken sectional detail of the book sections showing the-diagonal stitching employed. Fig. 7 is a section on line w w of Fig. 1. Fig. 8 is a section through the completed book showing the same in the open position.

Referring in detail to the drawings, the

booksupporting carriage 1 includes abase plate 2 and, extending at right angles to said.

ase plate, an abutmentplate 3 against which the book-sections 4: are pressed by the follower plate 5 operated by the screw threaded stem 6, said stem 6 having bearings 7 and 8 and-being rotated by hand wheel 9. From follower plate 5 extends angularly base plate 10, to support and steady said foll'ower plate 5, said base plate 10 being cencut away at 10 to make room for opened-widely to receive a large book. The base plate 2 of the carriage is provided with end pieces 2 having internal guiding grooves 2 (see Fi 5) to receive the edge portions of the base p ate 10 of the follower.

Abutment plate 3 and base plate 2 are respectively provided with vertically alined needle openings 11 and 12 to allow the needle 13 to penetrate diagonally the edge portionof the leaf sections 4 inthe operation of stitching the same together.

14c designatesv well known thread-locking mechanism with which said needle 13 cooperates. I

Means will next be described for supporting and guiding the book-holding carriage during the reciprocatory movements thereof. Said carriage is designated in a general way in Figs. 1 and 2 by the numeral 1, and comprises a sliding member 15 having arms 16 ahd also includes the base plate 2- and abutment plate 3, said plates 2 and 3 being constructed in fixed relation to each other and together forming a hinged member which is angularly adjustable with respect to the sliding member 1 5 in order to vary the angle-of the stitch {and the amount of paper penetratedhy the'ne'dle 13. In order to relcasably secure said hinged member in the adjusted position, each arm 16 is provided with a segmental extension 17 having a series of apertures 18 to receive a threaded pin 19 which extends through the desired aperture and is screwed into the end ofba'se plate 2. -Said hinged member is hinged upon a bar 20 by means of the .hingeeleinents 20 The sliding member 15, seen in cross section in Fig. 1, has an expandedor dove-tail base portion 21 which underlies a ledge 22 projecting from the casing 23, and also underlies a detachable securing plate or bar 24 fastened'to the casing 23 by screws 25,

thereby forming a fastening device and guide for said sliding member :15. fSaid expanded base 21 of said sliding member 15- is provided on its under side (seefFig' 7) with a toothed rack 26 which is-jjiiitermittently engaged by a dog 27 operated -by the feeding elements 28 and 29. 3".

31 designates the well known sewing machine standard provided with thehead 32 through which the needle-bar 33 reciprocates. 34: is the frame of the sewing maehine. This machine, in distinction from other types, places its stitches inv such a manner that they are neither horizontal nor vertical with reference to the sheets of the book,-

but slant between the horizontal and vertical, and pierce through aportion of the block of leaves near an edge, this blockof leaves being-built up of layers sufficiently thin to admit of the needle passing through two or more of them at each stitch. fIncreasing the angle of impact of the needle by adjusting the inclination of the book-holding device more nearly to the horizontal increases the depth of the stitch into the'block of paper (and incidentally increases the strength of the product); decreasing the .angle of impact decreases the depth of the stitch (and consequently improves the flexibility and opening qualities of the product.)

In operation enough of the book sections l are clamped in place to bring the follower plate 5 at least flush-with the lower .edge of the needle opening 12 so that the needle will not strike said plate. The first leaf sections are then sewed together by the diagonal stitches 35 (see Fig. 6). After each additional leaf section 4 is sewed on,

the hand wheel 9 is rotated to open the follower plate 5 and clamp in place a new'leaf section. After thebook has been built up to the full size it is removed from the carriage 1 and then replaced in the reverse po sition and an additional row of stitches 36 (see Fig.6) run along the oppositeside of the book.

v The invention has been illustrated and described as applied to one well known make of sewing machine, but it is to be understood that theskill of the workman will enable him to apply the book-holding device herein described and claimed to other sewing machines without departing from the spirit book in position for the needle to pass.

through a portion of the book adjacent to the said edge, a hinge'conneeting said right angled portion of said book-holding device with said carriage, a segmental extension carried by said carriage and having a series of apertures, and adjustable means to removably engage said apertures to vary the inclination of said book-holding device.-

2. In a book-sewing machine, thecombination, with the frame and stitch-making mechanism of a sewing-machine, of acarriage to support the layers of'a book during sewing, said carriage comprising a rightangled seat adapted to receive an edge portion ,of a book during sewing, there belng' needle-receiving apertures formed in the carriage to permit the needle to sew in front of and adjacent to said edge of said book, the walls of said seat extending at an acute angle to theneedle path, theneedle-point coming out at the back of the book, and a follower movable toward and from one of the walls of the seat to clamp the book in position for sewing.

3. Theeombination, with the frame of a sewing machine,'of a book-holding carriage having a base plateand an abutment plate disposed at an angle to said base plate, and a follower comprising an upwardly extending plate adapted to cooperate with said abutment plate to support a book being formed with the back edge of said book resting upon said base plate, and stitch making mechanism comprising a needle disposed at an oblique angle with relation to said base plate, said needle during the stitchforming operation reciprocating to and from a position exterior to the angle between the inner surfaces of said abutment plate and base plate and being thereby adapted to pass obliquely through the lower edge portions of the outer leaf sections of the book being built up.

4. The combination, with the frame and stitch-making mechanism of a sewing-machine, of a book-supporting carriage comprising a base plate and an abutment plate reciprocally movable in a path at right angles to the needle path of'said sewing machine, a hinge or pivotal support for said carriage extending in thedirection of the reciprocation thereof, and means to adjustably secure said carriage in various pivotal positions with resbect to 'said supportys aid base plate ,and al sp the abutment plate ad; joining thereto having needle-receiving able through an angle of less than ninety degrees with respect to the needle of said machine, said carriage being reciprocally movable in the direction of an edge thereof,

a small portion-of said carriage lying upon one side of the line of said needlewhile themajor portion of said carriage lies upon the a p posite 'sideof the line of said needle, there qbemg-g -ap'ertures through adjoining sidesof s id' carriage for the passage of needle in the, process of sewing.

In testimony whereof -I. betel hereunto signed my name in the presence of two subscribing witnesses at Los Angels; in the county of-Los Angelesand State of California, this 29th day of October, 1912.

' JOHN GRIESI NGERQ Witnesses: I Almm'r H. MERRILL,

W. ELMO Ramos.

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