US1254733A - Duplicator. - Google Patents

Description

A. B. SALIGER.

l nuPucATon.

x APPLICATION man MAY9.1916. l 9 A" `l ill` Patented Jan. 29,1918

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Patented Jan. 29, 1918.

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DUPLICATOR.

APPLICATION FILED MAY 9,1916.

Patented Jan. 29, 1918.

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`am mm A. B. SALIGER.

DUPLICATOH.

APPLICATION FILED IIAY 9. 191s.

Patented Jan. 29; 1918.

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A. B. SALIGER.

DUPLICATOR.

APPLwATloN HLED MAY 9. |916.

Patented Jan. 29, 1918.

5 SHEETS-SHEET 5.

OIS BENJAMIN SALIGER, OF NEW YORK N. Y., ASSIGNOR, BY-MESNE ASSIGNMENTS,

TO THE BECK'DUPLICATOR COMPANY, A CORPORATION OF NEW YORK.

DUPLICATOR.

To all whom z't may concern.'

Be it known that I, ALois BENJAMIN SALIGER, a citizen of the United States, and a resident of the borough of Manhattan, in the city and State of New York', have invented certain new and useful Improvements in Duplicators, of which the following is a specification. Thel invention relates to duplicators, and more particularly to such machines provided with a duplicating surface, usually of a gelatinous nature, adapted to `receive negative or reversed impressions, and rolling means for bringing a sheet of paper or the likeinto contact with such duplicating surface, in order that such impression may be communicated from said surface to said Some ofthe principal objects of the invention are to rovide a machine of the type mentioned which shall be eciently, easily, and quickly operated; comparatively noiseless,v and in. which the operation'of stripping the paper from the duplicating film` after it has received its impression shall be smooth and certain in action.

The invention consists in the novel construction, arrangement and combination of various devices, elements and parts, as shown in the accompanying drawings and fully described in this specification. j

In the said drawings, Figure 1 is a side elevation of a duplicator constructed according to my invention; Fig. 2 is a plan view of the same; Fig. 3 is a section taken on the line 3 3 of Fig. 2; Fig. 4 is a section taken on the line lf-.4 of Fig. 1 and looking in the direction of Vthevarrows; Figs. 5 6, and 7 are detail views to be hereinafterl described; and Figs. 8, 9, 10 and 11 are diagrammatic views showing the operation of invention.

ln car ing my invention into effect 1n v the. embo iment thereof which ll have selected for illustration in the accompanying drawings, ll provide a frame comprisin inner side members 20, having inte ral t erewith legs 21 by means of which 'it is adapted to be supported on a table or other suitable support, and if desiredrigidly secured thereto, and also having racks 24; end members 22; and outer side members 25, preferably in the form of cylindrical rods bearing on their upper sides racks 23.

Specication of Lettera Patent.

The inner side ratented aan. aa, iai.

Application ledMay 9, 1916. Serial No. 96,463.

members may if desired be integral with the end members 22, the latter being provided in their ends, which project beyond the inner side members 20, with sockets adapted to receive the rods 25, which may slide in said sockets, but which may when desired b e secured against such sliding by screwshpins, or the like. This construction 1s provided in order that the rods 25 may be partially or entirely removed from the frame in order to attach or remove the movable frame or carriage which will be hereinafter described, to the stationary portion of the apparatus.

Extending between the inner side members 20 is a bed 33, having suitably stretched thereover a suitable cover or strip of fabric 19, and over which passes the duplicating film 41. The ends of the duplicating film pass downward over rollers 18 at the ends .of the bed 33, and the portion of the film not in 'use is stored or wound upon rollers 34, journaled in the side members 20, the detailed construction and operation of which will be hereinafter described.

The movable frame or carriage above` referred to comprises'side members 26 adapted to slide on the rods 25, rollers 28 being provided if desired. Theserollers are provided with bearing screws whereby their pressure upon the rods 25 may be adjusted.- These side members 26 are connected by means of a paper stop 27, and also have pivotally secured thereto swinging side niembers 29,'connected together by means of an operating handle 30. These swinging members are supported on pivots 32 bearing in vertical slots 36 in the members 26, and may be adjusted by means of bearing screws 37. A paper platform 31 may be provided extending from the members 26, although this is not essential and may be dispensed with if desired.

Referring now more particularly to F ig. 3, it will be seen that the members 29 are each provided with a vertical rectilinear slot 38, in which slots slide blocks 39, having journaled therein the ends of an impression roller 40. Springs 42 are provided having one end secured to the members 29, and the other bearing against the blocks and forcing the same downward. The pressure of these springs may be regulated by means of bearing screws 43. I also provide' stripping rollers 44 and 45, preferably having their surfaces slightly roughened so that they will engage with each other. These rollers are coupled together b y means of links 46 (see Fig.4) in which they are rotatably mounted, these links having portions 47 extending beyond the roller 45.which portions areformed into cams, as in Fig. 3. i The ends of the roller 44 are mounted in blocks 48 secured in the members 29, and to each end of the said roller 44 is rigidly securedI a' wheel 49 adapted to run upon the top edge of one of the side members of the stationary frame and provided with a toothed portion adapted to engage with the rack 24, the detailed construction of these wheels being shown in Figs. 6 and 7. By reference to these figures it will be seen that the teeth of said wheels.

49, designated 50, do not extend to the full depth of the rack 24, thus minimizing the noise made by the engagement' of the teeth with the rack. Secured between the members 29 and located above the stripping i rollers 44 and 45 isa paper guide 51. The

stationary frame is provided with two sets of bearing.A surfaces 52 and 53, adapted'to co-act with the cams 47 in a manner to be hereinafter described. v

In order to adapt the apparatus for use with sheets of paper of different sizes,it is desirable to provide means for limiting the extent of the movement of the carriage, in other words, for fixing the oint where the operating stroke of the carriage shall begin, so that the end of the paper which is last depressed by the impression roller will project slightly beyond the end of the bed and duplicating film, in order that it may be engaged by the stripping rollers on the return stroke of the carriage. 'For this purpose I provide adjustable stops on the rods 25. The construction of one'of these stops is shown in detail in Fig. 5. It consists vof a piece 54 provided with a perforation 55 by means of which it is adapted to slide on its rod 25, and with a vertical perforation 56 having a shoulder 57. The upper portion of the piece 54 is forked as shown more particularly in Fig. 1. I provide an L-'shaped pin 58, one..arm of which occupies the perform' tion56, and the other arm the upper notched portion mentioned above. The first named arm is provided with a head 59, between which and the shoulder 57 acts a helical spring 60. This spring normally holds the pin 58 in the position shown in Fig. 5, that is,l with its horizontal arm slightly below the level of the top of the perforation 55. When in this position it will engage with one of the .notches of the rack 23, and

.the stop will be held against movement.

When it is desired to shift the stop, the head 59 is pressed upward, compressing the spring 60,' and lifting the horizontal arm of the pin 58 clear of the rack 23. The stop may .toward the right of Figs. 1, 2 and 3, with raised portions 120, which are adapted, as the carriage comes to the right-hand end of its stroke, to raise the impresslon roller slightlynin order that it may not bear upon the portion of the paper 'which projects beyond the end of the duplicating film.

The end portions of the duplicating film 41 which are not in use, are as hereinbefore set forth, stored upon rollers 34. These rollers are removable,.and one end of each roller is rotatably mounted in a socket in one of the members 20. The other' end is non-rotatably ournaled in a rotatable socket member 61 mounted in the other member 20. This socket-member is provided with a ratchet wheel 63, and with a handle 64 by means of which it may be rotated.

I provide pawls 65 adapted to engage with the ratchets 63, said pawls being pivoted at 66 to the support 20. Each pawl is provided with a spring 67. Rods 68 are provided, pivotally secured together by means of a pin 69 which works in a vertical slot 70 in the member 20. This pin 69 is provided with a friction-washer 169 (see 2) which presses the rods v68 against the outer portion of the pin. By this arrangement the pin 69 will remain .in any position in which it may be placed. The other` ends of these rods are slotted, and are slidably and pivotally secured to studs on the member 20. Each rod is provided lwith a stud 7l adapted to bear against one of the springs 67. When the pin 69 and parts connected therewith are in the position shown in Fig. 1, the studs 71 depress the springs 67, and lift the ends of the pawls 65 out of engagement with their respective ratchets. When the pin 69 is at the top of the slot 70, the studs 71 are lifted away from the springs 67, and the pawls 65 are allowed to drop down upon their ratchets. It will thus be obvious that the pawls may be thrown either into or out of engagement with their ratchets by the operation of the pin 69.

The operation of my inventionis as follows: The duplicating film is first placed matras The duplicating film being f secured in place, and the carriage being moved to the, end of themachine which is shown at the left of Figs. 1 2 and 3, a sheet of paper bearinv in suitable copying ink the matter to be 1duplicated is placed face downward upon the support 31, with its edge against the stop 27. The mechanism will then be in the position shown `in Fi 8. lt will be observed that the two stripping rollers lie in a horizontal plane, the cams 47 resting on the top of the bed 33.

The handle 30 is then moved toward the right. The first effect of this is to depress the roller40 lupon the end of the paper (designated 101), bringing thesame into con-4 tact with the duplicatmgfilm and forcing it below the edge of the stop 27. The parts will then be in the position shown in Fig. 9.

The movement-of the handle is continued until the carriage is in the position shown in Figs. 1, 2, and 3, 'and diagrammatically in Fig. '10. 'During this impression stroke the constant pull toward the right of the drawings keeps the members 29 and attached parts vin the position relative to the horizontal shownin Fig. 9, but when this pull is discontinued, the parts are free to assume the position-shown in the vto project horizontally, where it may said Fig. 10. The impression rollerhas passed over the entire` paper, and the greater part of. said paper lies in contact with the duplicating film. It will be observed that when the carriage is in this position the stripping rollers occupy a vertical plane, f

the cam 47 being guided downward bythe surface 53 as the carriage nears the end of this `lstroke. The stops 54 should occupy such a position that the end of the paper, after .the impression roller has passed entirely thereover, shall project slightly beyond the right hand edge of lthe bed, as shown at 102 in Fig. 10. "lhe impression roller is lifted up as it comes to the lright hand end of its stroke, by the raised portions 120, which prevent it from bearing upon the portion of the paper which projects beyond the-duplicatln lm. Thls portion of the paper is not orced downward by the impression roller, but is permittd e grasped by the stripping rollers.

The movement of the carriage is then reto slide upon the 'support 31. Fi 11 shows diagrammatically the position o the parts after the return stroke is begun@ `The return movement of the carriage is continued until the carriage strikes against the stops 54. The result of this operation is to return the paper to the supportl 31, an impression havlng'been transferred from the paper to the duplicating film bythe impression rollerV 40. The desired number of copies may then be transferred from the said Iilm to fresh sheets of paper by passing them through the machine 1n the same manner as the sheet bearing the original impression is passed through.

The advantages of .my invention will be' obviousfrom what has been above set forth -concernmg its construction and. mode of o eration. A very important advantage is o tained bythe use of the various bearing screws (35, 37, and 43) by which all lost motion may be taken up, and by providing the wheels 49 with a tread portlon adapted to run upon the top of the members 20, permitting the use of gear teeth which do not engage to the full depth of the rack;4

be made without departing from the spirit andscope of my invention. For mstance the carriage, `which has' been described as sliding upon rods, may be merely mounted upon wheels and roll overthe bed of the machine. Various modifications will suggest themselves tothose skilled in this art.

Having thus described my invention, what l claim as new and desire to secure by Letters Patent is as follows:

l. iln a duplicator, the combination with a frame having a -bed and a duplicating medium thereon; of a carriage movably mounted on said frame and provided with means 4 adapted to.4 depress a sheet of paper or the versed,vthe leftward pull upon the handle 30 maintaining the members 29 and attached parts in the )osition relative to the hori- Y rollers 44 and 45, and these' into a horizontal plane by the action of the cam 4 7 against the surface 52. As the paper is passedl out between these rollers 1t strikes against the guidel and is so-delected as like on to said duplicating mediumand with means adapted to strip same from said medium, said stripping means comprising a pair of rollers pivotally securedA to said carriage and adapted to lie side by side with their line of contact approximately in the plane ot said duplicating medium one roller on one side of sald plane and the other roller on the other side o said plane at the beginning of the stripping operation whereby a sheet of pa er on said medium may enter ieu lat

to pass over the impression roller 40 and between sai rollers, but said stripping rollit@ ers being adapted to be swung out of said relation to said plane after said stripping operation has been begun.

2. In a duplicator, the combination with a frame having a bed and a duplicating medium thereon; ofa carriage movably mounted on said frame and provided with means adapted to depress a sheet of paper or the like on to said duplicating medium and with means adapted to-strip same from said medium, said stripping means comprising a pair of rollers plvotally secured to said carriage and adapted to lie side by side with their line of contact approximately in the plane of said duplicating medium one roller on` one side of said plane and the other 'roller on the other side of said plane at the beginnina` of the stripping operation whereby a sheet of paper onv said medium may enter between said rollers, but said stripping rollers being adapted to be swung out oi' said relation to said plane after said strippingv operation has been begun; said frame being provided with a rack and one of said stripping roll'ers being provided with a gear adapted to engage with saidrack.

3. In a duplicator, the combination with a frame having a bed and a duplicating medium thereon; of a carriage movably mounted on said frame and provided with means adapted vto depress a sheet of paper or the like on to said duplicating medium and with means adapted to strip said sheet of paper from said medium, said stripping means comprising a pair of rollers pivotally secured to said carriage said rollers at the beinning of the stripping operation lying side y side and with their line of Contact approximately in the plane of said duplicating medium one roller on one side of said plane and the other roller on the other side of said glane whereby a sheetr of paper vonfsaidl meium may enter between said rollers; and

' means adapted to swing said rollers out of said relation' tolsaid plane when the stripping operation has 'been begun, whereby said sheet of paper -is separated from said mey dium.

a mem er movably mounted on said frame and a pin movable in said movable member adapted normally to engage with said rack.

5. In a duplicator, the combination with a frame having a rack, a bed; and a duplicating medium on said bed; ofl a carriage movably mounted on said frame and provided with means adapted to depress a sheet or' paper or the like on to said duplicating medium and with means adapted to strip same from said medium; of an adjustable stop adapted to limit the movement of said carriage upon said frame, said stop comprising a member movably mounted on said frame and a pin movable in said movable member and provided with a projecting toe adapted to engage with said rack.

6. In a duplicator, the combination with a frame having a rack, a bed, and a duplicating medium on said bed; of a carriage movably mounted on said frame and provided with means adapted to depress a sheetof paper or the like on to said duplicating medium and with means adapted to strip same from said medium;,of an adjustable stop adapted to'limit the movement of said carriage upon said frame, said stop comprising a member movably mounted on said frame and a pin movable in said movable member and provided with a projecting toe adapted to engage with said rack a-nd a spring adapted to bring about such engagement.

' 7. In a duplicator the combination with a frame having a bed and a duplicating medium thereon; of a carriage movably mount- -like on to said duplicating medium, and

with a pair of rollers adapted to strip same from said medium; means adapted to elevate said depressing means as it inishes its stroke, so that it is prevented from then depressing the part of said sheet of paper adjacent thereto onto said duplicating medium.`

8.\ In a duplicator, the combination with a frame having a bed and a duplicating medium thereon; of a carriage movably mounted on said frame and provided with means adapted to depress a sheet of paper or the like on to said duplicating medium, and with a pair of rollers adapted to strip same from said medium; said frame being provided with tracks upon which the ends of said depressing means are adapted to run, said tracks being elevated at the point where the said depressing means finishes its stroke whereby the said depressing means toward the end of its stroke is raised up and prevented from then depressing the part of said sheet of paper adjacent there to on to said duplicating medium. l

9. In a duplicator, the combination with a frame having a bed anda duplicating rne-r dium thereon; of a carriage movably mounted on said frame and provided with means adapted to depress a sheet of paper or the like on to said duplicating medium; and

with means adapted to strip same from said medium, said stripping means comprising a air of rollers; said frame being provided wlth tracks upon which the ends of one of aaaaraa said stripping rollers are adapted to run to engage with said rack; and means adapt.

ed to prevent th'e teeth of said gear and of said--raelrfrom meshing to their full extent.

10. In a. duplicator, thecombination with a frame having a, bed and a duplicating medium thereon; of a carriage movably mounted on said frame and provided with means adapted to depress a sheet of paper or the like on to said duplicating medium; and with means adapted to strip same from said medium, said stripping means comprising a pair of rollers; said frame being providedwith tracks upon which the ends of one of said stripping rollers are adapted to run and being also provided with a rack, and said before mentioned one of said striping rollers being provided with a gear adapted to engage with said rack; the said tracks being of such elevation as to prevent the teeth of said gear and of said rack from meshing to their full extent. l

11. lln a duplicato'r, the combination with a frame having a bed and a duplicating' medium thereon; of devices adapted to store portions of the duplicating medium not in use and to shift the said medium when desired overv the said bed and to hold the same taut thereupon, said devices comprising rollers journaled in said frame, rotating meansl for said rollers, co-actng ratchets and pawls adapted to hold said rollers.` against rotation, and means adapted to release ,said pawls, said means comprising bars pivoted in said frame and adapted when swung in one position to allow said pawls'to engage with said ratchet and when swung into another position to prevent said pawls from so engaging, the ends of said bars being pivotally secured together whereby they may be simultaneously operated. a

12. ln a duplicator, the combination with a frame having a bed and a duplicating medium thereon; o f devices adapted to store portions of the duplicating medium not i'n use and to shift i*the said medium when desired over the said bed and to hold the same taut thereupon, said devices comprising rollers journaled in said frame, rotating means for said rollers, co-acting ratchets and pawls adapted to hold said rollers against rotation -and means adapted to release said pawls, said means comprising bars pivoted in said frame and adapted when swung in one position to allow said pawls to engage with said ratchets and when swung into another position to prevent said pawls from so engaging, the ends of said bars being pivoted together whereby they may be simultaneously operated and being provided with means adapted to hold same in any position at in which theyare placed.

13. In a duplicator, the combination with a frame having a bed and a duplicating medium thereon;- of devices adapted to store portions of the duplicating medium not in use and to .shift the said medium when desired over the said bed and hold the saine taut thereupon, said devices comprising rollers journaled in said frame, rotating means for said rollers, co-acting ratchets and pawls adapted to hold said rollers against rotation, springs adapted to bearupon said pawls and hold them normally in engagement with said ratchets and means adapted to release said pawls, said means comprising bars pivoted in said frame and adapted when swung in one position to allow said pawls to engage with said ratchets andl when swung into another position to prevent said pawls from so engaging.

14:. In a duplicator, the combination with a frame having a bed and a duplicating medium thereon; of-a carriage movably mounted on said frame provided with rocking members pivotally secured thereto, a roller adapted to depress a sheet of paper or the like on to said duplicating medium journaled in. said rocking members on one side of the pivotal connection thereof, and a pair of rollers adapted to' strip said sheet ot paper from said medium, rotatably secured to said rocking members on the other side of said pivotal connection.

15. lin a duplicator, the combination with a frame having a bed and a duplicating medium thereon; of .a carriage movably mounted on said frame. and provided with means adapted to depress a sheet of paper or the like onto said duplicating medium and with means adapted to strip same from said medium, said stripping means comprising a pair of rollers secured to said carriage and adapted to lie side by side with their line of contact approximately in the plane of said duplicating medium one Aroller on one side of said plane and the,otherro1ler on the 4other side of said plane at the Abeginning of the stripping operation whereby a sheet of paper on said duplicating medium may enter between said rollers, but said stripping` rollers being adapted to be swung out o said relation to said plane after said stripping operation has been begun.

16. lln a duplicator, 'the combination with a frame having a bed anda duplicating medium thereon; of a carriage movably mountec on said frame and provided with means a apted to depress a sheet ot paper or. the like on to said duplicating medium and with lmeans adapted 'to strip same from said mellt@ other side of said plane at the beginning of the stripping operation whereby a sheet of paper on said medium ma enter between said rollers, but said stripping rollers being adapted to be swun out of said relation to said plane after sai stripping operation has been begun; said frame being provided with a rack and one of said stripping rollers being provided with a gear adapted to` engage with said rack.

-17. In a duplicator, the combination with a frame having a bed and a duplicating medium thereon; of a carriage movably mounted on said frame and provided with means adapted to depress a sheet yof paper or the e'like on to said duplicating medium and with means adapted to strip said paper from ofcontact approximately in the plane of said duplicating medium, one roller on one side of said plane and the other roller on the other side of said plane, whereby a sheet of paper on said medium may enter between saidl rollers; and means adapted to swing said rollers out of said relation to said plane when the stripping operation has been begun,'whereby said sheet of paper is separated from said medium.

In witness whereof I have hereunto signed my name this 3d day of May, 1916.

ALOIS BENJAMIN SALIGER.

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