US1272787A - Multiple-copying machine. - Google Patents

Description

1.1. FLANIGAN.

MULTIPLE COPYING MACHINE.

APPLICATION FILED 1mm. I916- 1,272,787. Patented Julylfi, 1918.

2 SHEETS-SHEET I.

J. .I. FLANIGAN'.

MULTIPLE COPYING MACHINE.

APPLICATION FILED JAN-2|. ISIS.

1,272,787. Patented July 16, 1915;

2 SHEETS-SHEET 2.

JOHN J. FLANIGAN, OF CHICAGO, ILLINOIS, ASSIGNOR TO DUPLICATOR MANUFAC- TURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF WEST VIRGINIA...

MULTIPLE-COPYING MACHINE.

Specification of Letters Patent.

Patented July 16, 1918.

Application filed January 21, 1916. Serial No. 73,297.

To all whom it may concern:

Be it known that I, JOHN J. FLAMGAN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Multiple-Copying Machines, of which the following is a specification.

This invention relates to the art of multiple copying machines of the hectograph type, and has reference more particularly to that class of such machines employing a flat printing bed supported on a suitable frame, and a duplicating band or apron stretched thereover between receiving and delivery spools mounted in the frame at opposite ends of the bed respectively.

The primary and general object of the invention is to produce a machine of this type that shall be of simple and durable construction, capable of production at a low cost, easy to operate, and wherein the printing may be effected either by the hand of the operator or by an impression roller or any other impression device. More specific objects are, to provide an improved spool for the copying apron, to provide, in combination with such spool, an improved means forremovably mounting and supporting the same in the frame of the machine, to provide an improved gage-bar for positioning and squaring sheets of different widths on the printing bed, and to provide in association with the frame and bed an improved receptacle for containing and housing supplies and accessories of the machine, thus utilizing what would otherwise be waste space in the machine.

Other minor objects and advantages of the invention will be apparent to those familiar with the art from the following description taken in connection with the accompanymg drawings forming a part of this specification, in which,-

Figure 1 is a top plan view of the machine;

Fig. 2 is a longitudinal section on the line 22 of Fig. 1;

Fig. 3 is a fragmentary side elevation, as

viewed from the lower right hand corner of Fig. 1;

Fig. 4 is a view partly in end elevation and partly in vertical section through'the frame, the gage-bar, and one of the spools and its mountings;

Fig. 5 is a side elevation of one of the spools; and

Fig. 6 is an end view of the same.

Referring to the drawings and describing first the frame structure and printing-bed, 10 designates each of a pair of parallel vertical side plates that are rigidly connected and spaced at their lower portions by cross bars 11, theends of which are turned down to form legs 12 and feet 13, and are secured to the side plates by bolts or rivets 14. 15 designates each of a pair of distance rods that rigidly connect and space the upper portions of the side plates 10 above the crossbars 11, and form supports for a removable hinged bed plate 16. This latter, as is best shown in Fig. 2, has attached to its opposite sides near its front and rear ends front and rear angle brackets 17 and 18 respectively. The depending portions of the brackets 17 are vertically slotted or forked as shown at 19 to straddle and rest upon the forward distance rod 15, and the rear brackets 18 are horizontally slotted or forked as shown at 20 to similarly engage the rear distance rod 15 under a horizontal sliding movement. To remove the bed plate its forward end is raised until the brackets 17 clear the forward distance rod 15, and then by a slight forward movement the rear brackets 18 are drawn clear of the rear distance rod 15. The bed-plate is put in place by the converse of these operations performed in the inverse order in a manner readily understood. The described mounting of the bed-plate also enables it to be tilted up on its rear hinges to afford access to an underlying storage receptacle hereinafter described. The ends of the bed plate 16 are preferably bent downwardly, as shown at 16, in the general direction of the copying apron in passing between the spools or rolls and the ends of the printing bed, to reduce wear on the apron and avoid the necessity of anti-friction rollers at the ends of the bed plate. The bed plate 16 is preferably furnished with a cloth covering 21 stretched thereover and suitably secured thereto. The structural features of the machine as thus far described are, with the exception of the inclined ends of the bed plate, shown, described and claimed in an earlier application filed by me on the 8th day of November 1915 Serial No. 60,251, and .no claim thereto is made herein.

lll

Over the bed-plate is stretched the usual gelatin duplicating apron or band 22, the end portions of which are wound on a pair of spools, designated as an entirety by'23, one of which is located at the head end of the machine and constitutes the receivin spool while the other is located at the tai end ofthe machine and constitutes the delivery spool. When the'apron has been exhausted from the delivery spool and wound up on the receiving spool, the two spools are removed and interchanged and the band is then rewound in the same direction, or the spools may be left in place and the band rewound in the reverse direction. Figs. &, 5 and 6 illustrate the detail structure of-this spool, which comprises a cylindrical body portion 24 preferably of wood or other nonmetallic material formed with a longitudinal groove or kerf 25 for the attachment thereto of the end of the duplicating apron. The two ends of the spool body 24 are made polygonal in cross section, as by squaring them,- as shown at 26, and these squared ends are provided in their outer faces with outwardly flaring or tapered central recesses or sockets 27 in line with the axis of the spool.

Preferably, and as here shown, the squared ends of the spool are also equipped with sheet metal skeins 28 for greater strength and durability, and the outer faces or ends of the skeins are centrally apertured to register with the recesses or sockets 27, and the metal surrounding said apertures is preferably swaged inwardly to form a lining or bushing for the sockets 27, as shown at 29. At the head end of the machine one squared end of one of the spools is engaged with a supporting member 30'that is journaled in one of the side plates of the frame and is, provided with a crank arm 31. The

inner end of the spool support 30 is formed as a chuck 3-2 that engages the squared end portion of the spool, and preferably the chuck is further formed with a tapered centerin pin 33 lying between the jaws of thechue that centers the spool in the chuck through engagement with the recess 27,

East on the chuck is a ratchet disk 34 that is normally engaged by a gravity detent '35 pivoted to the inner face of the side plate of the frame. The last described structure for supporting one end of the spool is duplicated at the tail end of the machine, with the exception that a turning knob 36 (Fig.'

1) is substituted for the crank 31.

The other ends of the spool are removabl mounted on duplicate supports, each of which, as best shown. in Figsfl, 3 and 4:, comoo prises a supporting member .37 that is rigidly secured at its outer end to, and carried by, a long leaf spring 38, which latter is secured at its intermediate portion as by rivets 39 to the outer side of the opposite side plate of the frame whereby the free end portitms per sheets of different widths. 1n the form herein shown, comprises a gageavage?" as hereinafter described. Each supportingmember 37 extends through an aperture l0 in the side plate of the frame and has formed on its inner face a cone-shaped spindie 41 that normally engages the tapered bearing recess or socket in the proximate end of the spool forming a bearing support on which the latter may freely rotate, and preferably the supporting member 37 is equipped with a stop pin 41' that limits the retracting movement of the supporting member to an extent sufficient to facilitate the application and removal of the spool. Preferably, and as herein shown, each end of the long spring 38 is extended slightly beyond the. frame plate, as shown at 38, which facilitates the flexing back of the spring by the thumb of the operator when applied for removing'a spoolfrom or positioning'it in its bearings. To place the spool in working position either end thereof may be first engaged with its support, and then by flexing the spring end 38 outwardly the other end" of the spool may be readilyvantages, among which are the facility with i which the spool may be mounted and with drawn, the-accurate centerin and its security'ag'ainst acci ental dislodg ment from half bearings or other open-sided bearings.

of the spool,

I have also provided the present machine with an improved gage-bar well adapted for use on machines not employing a platen carriage for rollingout the sheet on the printing bed, and designed to facilitate theaccurate and symmetrical positioning ofpa- This gage,

bar proper 42 of generally 2 form in cross section located directly opposite the'head end of the printing bed and having rearwa-rdly' extending arms 43 that are pivoted at it to the side frame plates of the machine, so that the gagebar. may be tilted back 'to the dotted line position indicated in Fig, 2 to facilitate the mounting of the copying apron and its rolls or spools.

edan adjustable gage plate or slide 46 having a finger i7. overlying the lower leaf of the gage-bar. The slide 4:6 is secured at any set position lengthwise of the slot 45 by a thumb screw 48 and nut 49; In copylhe upper horizontal 3 leaf of the gage-bar 42 is longitudinally slotted as shown at 45, and on the same is mounting a sheet, such as 50, the movable gage plate 46 is adjusted to and fixed in such a position lengthwise of the gage-bar as will determine a symmetrical position of the sheet 50 on the printing bed through engagement of one corner of the sheet with the gage finger 47.

In order to render the machine as compact as possible and utilize what would otherwise be waste space for the storage of acressol'ics and supplies I provide a sheet metal box .31. most clearly shown in Fig. 2, which is disposed between the side frame members and'beneath the bed plate. In order to use a receptacle of maximum dimensions, the lower portion of the box 51 is formedwith rectangular reentrant ends 51' that, when the box is in position, rest upon and depend from the spacing bars 11 of the frame, the end walls of the box lying just inside the distance rods 15. By either removing or tilting the bed plate upwardly to vertical position, this storage box 51 may be readily applied or removed. The box may be utilized to carry the copying apron and its spools as well as "arious other accessories of the machine; and since the bed plate in working position forms a cover for the box the latter is well adapted to protect its contents from dust, dirt and injury.

I claim:

1. In a duplicating machine, the combination with a frame structure including parallel side frame members, of a spool for a copying apron having squared ends each provided with a central recess, a supporting member for one end of said spool journaled in one of said side frame members and formed with a chuck adapted to engage one squared end of said spool, and a centering pin adapted to engage the recess in said end, and a supporting member for the other end of said spool mounted in the other side frame member and formed with a non-rotatable spindle adapted to engage the recess in the other end of said spool, said spindle being yieldable in the direction of the spool axis to permit application and removal of the spool, and said spool being reversible end for end between its supporting members.

2. In a duplicating machine, the combination with a frame. structure including parallel side frame members, of a spool for a copying apron having squared ends, each provided with a central recess, a supporting member for one end of said spool journaled in one of said side frame members and formed with a chuck and a centering pin adapted to engage the squared end and recess respectively at one end of said spool, a supporting member for the other end of said spool mounted in the other side frame member and formed with a non-rotatable spindle adapted to engage the recess in the other end of said spool, said spindle being movable in the direction of the spool axis. and a spring normally urging said spindle into bearing engagement with the end of the spool, said spool being reversible end for end between its supporting members.

3. In a duplicating machine, the combination with a frame structure including parallel side frame members, of a reversible spool for a copying apron having squared ends each provided with a central recess, a supporting member for one end of said spool journaled in one of said side frame members and formed with a chuck adapted to engage one squared end of said spool, and a centering pin adapted to engage the recess in said end, a spring secured to the other side frame member, and a supporting member for the other end of the spool directly carried by said spring and formed with a non-rotatable spindle adapted to engage the recess in said other end of the spool.

. 4:. In a duplicating machine, the combination with a frame structure including parallel side Walls, of a spool for a copying apron having centrally recessed squared ends, a supporting member for one end of said spool j ournaled in one of said side walls and formed with a. chuck adapted to engage one squared end of said spool, a leaf spring secured to the outer side of the other side wall, and a supporting member for the other end of said spool secured to the free end portion of said spring and extending through said side wall, said last named supporting member having its inner end formed as, a spindle adapted to engage the recess in said other end of the spool.

5. In a duplicating machine, the combination with a frame structure including 'parallel side walls, of a pair of spools for a copying apron, each having centrally recessed squared ends, supporting members for stantially centrally to the outer side of the other side wall and extending lengthwise of the latter, and a pair of supporting members for the other ends of said spools secured to the free end portions of said spring respectively and extending through said other side wall, said last named supporting members having their inner ends formed as spindles adapted to engage the recesses in said other ends of the spools.

6. As a new article of manufacture, a winding spool for a copying apron consisting of a cylindrical body portion and duplicate end portions of polygonal cross-section rigid with said body portion, each of said end portions having formed in its outer face a bearing recess or socket axially coincident with the axis of the spool body.

7. As a new article of manufacture, a

winding spool for a copying apron consisting of a cylindrical body portion and duplicate end portions of polygonal cross-section rigid with said body portion, each of said end portions having formed in its outer face an outwardly flaring bearing recess or socket axially coincident with the axis of the spool body.

8. As a new article of manufacture, a winding spool for a copying apron consisting'of a cylindrical body portion having a longitudinal kerf and duplicate integral flattened end portions, each of said end portions having formed in its outer face a bearing recess or socket that is axially coincident with the axis of the spool body.

9. As a newarticleof manufacture, a

' winding spool for a copying apron, consisting of a non-metallic cylindrical member having squared ends each formed with a central recess or socket in line with the axis of the spool, and metal skeins covering said squared ends and formed with openings in their. outer faces registering with said recesses.

10. As a new article of manufacture, a winding spool for a copying apron consisting of a non-metallic cylindrical member having squared ends each formed with a central recess or socket in line with the axis of the spool, and metal skeins covering said squared endsand having on their outer faces inturned portions forming linings for said recesses. a

11. As a new article of manufacture, a winding spool for a copying apron consisting of a cylindrical body portion and duplicate end portions of polygonal cross-section, each of said end portions having formed in its outer face an outwardly flaring recess or socket axially coincident with the axis of the spool body, and sheet-metal skeins covering said end portions and formed with openings in their outer faces registering with the outer ends of said recesses.

12. As a new article of manufacture, a winding spool for a copying apron consisting of a cylindrical body portion and duplicate end portions of polygonal cross-section, each of said end portions having formed in its outer face an outwardly flaring recess or socket axially coincident with the axis of the spool body, and sheet-metal skeins covering said end portions and havcentering pin for engaging one. end of said spool, a leaf spring secured to the outer side of the other side wall, and a supporting member for the other end of'said spool secured to said spring and extending through said side wall, said last-named supporting member having its inner end formed as a tapered bearing adapted to engage the recess in said other end of the spool.

14. .In a duplicatingmachine, the combination witha frame-structure including parallel side walls, of a copying-apron spool having squared ends each formed in its outer face with a central recess, a supporting member for one end of said spool journaled in one of said side walls and formed with a driving chuck and a centering pin for engaging one end of said spool, a leaf spring secured to the outer side of the other side -wall and having its free end'projecting beyond the end of the latter to form a fingerhold for flexing the spring outwardly, and a supporting member for the other end of said spool secured to said spring and extending through said side wall, said lastnamed supporting member at its inner end engaging in the recess in said other end of the spool and serving as a bearing therefor.

JOHN J. FLANIGAN.

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