US1489015A - Printing device - Google Patents
Printing device Download PDFInfo
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- US1489015A US1489015A US568601A US56860122A US1489015A US 1489015 A US1489015 A US 1489015A US 568601 A US568601 A US 568601A US 56860122 A US56860122 A US 56860122A US 1489015 A US1489015 A US 1489015A
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- Prior art keywords
- frame
- pins
- chase
- bars
- printing
- Prior art date
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- Expired - Lifetime
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
- B41L19/00—Duplicating or printing apparatus or machines for office or other commercial purposes, of special types or for particular purposes and not otherwise provided for
Definitions
- the printing plate is made up in a novel manner by meansoi' a number of pins or plungers held in a chase, and having their ends in a common plane with only those pins which form the desired letters or design projected beyond thepcoimnon plane.
- Figure 1 is a detail plan view of one corner of the device. i
- Figure Q is a section on the line 2-2 of Figure 1.
- Figure S is a detail elevation of the eccentric chase locking member.kv
- Figure 4 isa detail of one oi the pins.
- Figure 5 is a plan view ot' the chase by itself.
- Figure 6 is a plan view of the complete machine.
- Figure 7 is a side elevation oiE the coinplete machine.
- Figure 8 is a detail end elevation of the one corner of the machine ony a larger scale.
- my views l have not attempted to show the pins as small as they will usually be made. It will be understood that the dimension of the pins will be such that they form a dot on the object to be imprinted of the desired size and spacing.
- the pins shown are merely cylindrical tempered pieces ot' wire l having' their both ends flat.
- rf'he chase is made up of a rectangular frame having sides 2, 2, and sides 3, 3, leaving an open rectangular space within.
- the sides 2, 2, carry within the channels 2"L thereof bars 4, which are adjusted in position by set screws 5.
- the sides 3, 3, are
- channels 3d responding to the channels 2. They have also channels 6 in the tops thereof.
- the channels 3a are bars 7, which have pins 8 thereon, which pass through holes 9 in the bars 3.
- the top channels of the sides 3 are bars 10, 10, which have out out inclinednotches 11 therein which engage the pins 8.
- the pin assembly is arranged within the chase with the pins abutting each other and the. bars 4 are adjusted to lock the pins together, while permitting individual movement of ,the pins.
- the bars 10 are pulled lengthwise toward the corner between ,themjthel bars 7 are forced inward against the pin assembly in such a way as to lock them tightly against any displacement.
- the manner of moving the bars 10 may be made simple by linking to the end of each bar a strip 12 and providing a mounting in the corner of the chase frame for a. shaft 13.
- the strips 12l Vare formed with apertures in theirI meeting ends, which lie over the eccentrics 14 and 15 on t-he shaft 13. These eccentrics are so arranged that when the handle 16 on the shaft is moved over the two bars 10 are pulled toward thel corner, thereby pushing in on the pins of the bars 7.
- I have formed a hollow at the select-ed corner of the chase frame, and extending the ends ot the bars 10 through holes in the ends of the channel spaces 6, into this hollow space.
- the sha-'ft extends across the hollow space and the eccentrics and links are mounted within the hollow space', as is the operating handle.
- the printing machine using the above chase is adapted especially for use with it, although it will be understood that the chase may be used in any desired manner.
- the machine frame has a bed 17 on which are erected standards 18 for shafts 19, one at each end of the frame. These shafts are connected together at their ends by means of arms 2O on the shaft and links 21 between the arms.
- the two bars 23 have apertures 25 therein, which are set over the shafts 19, said slots 25 being elongated to permit up and down movement to the bars.
- the bars have also projections or flanges 28 which engage over special shaped cams 26 on the shafts.
- rl ⁇ he cams have three iiats 27 at different distances from the shaft center.
- a handle 28 may be provided at a selected corner of the machine, said handle having a pin riding over a sector plate 29 having holes 30 therein for the pin.
- rollers 32 which ride on the lengthwise bars 23, so that when the bars are raised by the cam device, the entire chase is elevated.
- the position ofthe bars is such that when the cam devices lower them to the lower point, the pins will all contact with the bed of the machine, thereby bringing them into a common plane.
- the chase is then in position with the pins all elevated from the bed, including those which have been depressed.
- the chase may then be rolled to the other end of the frame ⁇ which is usually about twice the length of the chase.
- the projected pins receive ink from a roller 40 supplied through a series of distributing rollers fed from a well l1 in the usual manner.
- the chase comes over the far end of the machine, it is lowered to the half way point again for making an impression on a piece of paper, fabric, or whatever is dedesired.
- This piece will be located on a tympan 42 mounted in the bed on a series of posts 43 set in holes in the bed, said posts having springs la set around them so that the tympan has some small movement as the chase isdropped.
- the parts are returned by raising the bars to their full height and rolling the chase back to the starting point, or at least far enough to receive another coating of ink to make another impression.
- the entire plate may then be dropped against the platen to rectify the pin assembly after the same has been freed.
- the motions are all applied to the pin frame or chase by means of the bars 23 Y which are raised and lowered by manipulating the handle 28, thereby operating the cams 26, which in turn act on the bars at the four corners of the machine.
- a device for making printed impressions comprising a frame, an assembly of pins set into said frame and retained thereby, said frame being adjustable to retain the pins in position within the frame, but individually movable and also adjustable to lock the pins in the frame.
- a device for making printed impressions comprising a frame, an assembly of pins set into said frame and retained thereby in position to permit individual adjustment of the pins in the assembly, and means on the frame to lock the pins in adjusted position.
- a device for forming printed impressions comprising a frame, a series of pins arranged parallel to each other in said frame and essentially cylindrical in shape, pressure bars comprising part of the frame and adapted to hold the pins in the frame while permitting individual pins to be depressed without moving the others, and means for imparting additional pressure to said bars to lock the pins against movenient during the forming of printed impressions by the depressed pins.
- a device for forming printedimpressions comprising a rectangular frame, bars slidable in said frame, a-series of pins avrranged in contact with each other between said bars, means for applying pressure to the bars toI hold the pins between them while permitting individual movement of selected pins, and means for applying by another mechanism, additional pressure to the bars to ho-ld the pins against further movement relative to the frame.
- a device of the character described a frame, a series of bars about the interior of the frame, means in the frame for eX- erting inward movement on certain of the bars, and additional means for exerting a predetermined pressure on other of the bars, and an assembly of pins mounted between the bars within the frame, for the purpose described.
- a device for making printed impressions comprising a frame, an assembly of pins set into said frame and retained thereby, said frame being adjustable t0 retain the pins in position Within the frame, but individually movable and also adjustable to lock the pins in the frame, said pins having fiat tops and bottoms.
- a device for use in printing with a pin chase of substantially the character described comprising a frame, means forming a track on said frame, a pin chase adapted to ride on said track, and means on the frame for raising and lowering the chase to positions of high elevation of the chase during printing, and full depression of the chase for rectification of the pins.
- a device for use in printing with a pin chase of substantially the character described comprising a platen or bed, a resiliently retained tympan, an inking device, and means for supporting a pin chase movably over the bed, said means being adapted for depression of the chase over the tympan for printing and elevation of the chase during a setting of the pins.
- a device for use in printing With a pin chase of substantially the character described comprising a frame, bars extending along said frame, a paper supporting means on said frame, a pin chase having means for riding on said bars. and means for elevating and lowering said bars, for the purpose described.
- a device for use in printing with a pin chase comprising a frame, an inking device and a paper sup-port on said frame, and means for movably supporting a pin chase to permit movement thereof across the. frame in one plane and toward and away from the frame in another plane, whereby as asequence of operations the pins may be set, the chase given an inking movement and then the chase may be lowered against the paper support.
- a device for use in printing with a pin chase comprising a bed, rails extending along said bed, a paper support at one end of the bed, a rectifying base at theother end of the bed, an inking device intermediate the ends, and aV pin chase having means for riding on said rails and means for raising and lowering the rails.
- a device for use in printing with va pin chase comprisingv av bed, rails extending along said bed, a paper support-at one vend of the bed, a rectifying base ⁇ at the other end of the bed, an inking ⁇ device intermediate the ends, and a pin chase having means for riding on said rails and means for raising and lowering tthe rails, vsaid means being ⁇ perable on the rails at the four corners of the frame.
- a device for use in printing'vvith a pin chase comprising a bed, rails extending along said bed and mounted for movement in planes at an angle to the bed, rock shafts atthe end of the bed, said shafts being interconnected andhaving cams thereof, said rails being adapted to engage said cams, and a paper support mounted at a portion of the bed between said rails, for the purpose described.
- a device for use in printing comprising a frame and shiftable means of uniform thickness held Within said frame and adapted upon imposition of an object on the upper face thereof to adapt itself to said object by a corresponding depression on the upper face, and to form an extension on the under face corresponding to the said depression, said extension thereby forming a copy of said object.
- a device for use in printing comprising a frame, and shiftable means of uniform thickness held Within said frame and adapted upon imposition of an object on the upper face thereof to adapt itself to said object by a corresponding depression on the upper face, and to form an extension on the under face corresponding to the said depression, said extension thereby forming a copy of said object, said frame including means for locking said shiftable means in the position resulting from imposition of an object.
- a device for use in printing comprising a frame, and shiftable means held Within said frame and adapted upon imposition of an object on the upper face thereof to adapt itself ⁇ to said object by a corresponding depression on the upper face, and an eX- tenson on the under face corresponding to the said depression, said extension thereby forming a copy of said object, and a mounting device for movably retaining said frame, said mounting device being supplied with an inking member for the extended part of the shiftable means.
- a device for use in printing comprising a trame, and shiftable means held within said frame, and adapted upon imposition of an object on the upper face thereof to adapt itself to said object by a corresponding depression on the upper face, and an eX- tension on the under face corresponding to the said depression, said extension thereby forming a copy of said object, said frame including means for locking said sliiftable ieans in the position resulting from imposition of anobject, and a mounting device for movably retaining said frame, said mountingl device being supplied with an inkingvmember ⁇ for the extended part of the ysliiitable means.
- a device for use in printing comprising a frame, and shiftable means held withinv said frame and adapted upon imposition of an object on the uppei ⁇ face thereof to adapt itself to said objectl by a corresponding depression on the upper face, and an extension on the under face corresponding to the said depression, said extension thereby forming a copy of said object, and a mount-ing device for movably retaining said frame,csaid mounting device being supplied with an inking member for the extended part of the shiftable means, and said mounting device also having means for depressing the frame for forming printed expressions.
- a device for use in printing comprising a frame, and shiftable means held Within said frame, and adapted upon imposition of an object on the upper face thereof to adapt itself to said object by a corresponding depression on the upper'face7 and an extension on the under face corresponding to the said depression, said extension thereby forming a copy of said object, said frame including means for locking said sliiftable means inthe position resulting Jfrom an imposition of an object, and a mounting device for movably retaining said frame, Said mounting device being supplied with an inking member for the extended part of the shiftable means, and said mounting device also having means for depressing the frame for forming printed expressions.
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- Rotary Presses (AREA)
Description
April ,l 1924. 1,489,015
J. Q. SHERMAN PRINTING DEVICE Filed Ihm@ l5 1.922 2 Sheets-,Sheet l Z la, Z/f 9 y A TTORNE Y.
April 1 1924.
J. Q. SHERMAN PRINTING DEVICE Filed June 15 1922 2 Sheets-Sheet 2 Patented Apr. 1, 1924.'
JOHN o. sHERMAN, on DAYTON, OHIO.
PRINTING- DEVICE.
' Application led .Tune l5, 1922. Serial No. 568,601.
'wherein the printing plate is made up in a novel manner by meansoi' a number of pins or plungers held in a chase, and having their ends in a common plane with only those pins which form the desired letters or design projected beyond thepcoimnon plane.
So tar as I am advised, this is a novel method of forming a plate and the impression given is varied in ineness of line by the dimensions of the'pins used.
It is my object essentially to provide a )in assembly and chase wherein the proper c esign may be formed by projecting desired pins and the pins held under individually movable tension during the formation of the design, after which the chase is locked by a simple device to hold the desired arrangement. n i
It is also my object to provide a sim )le printing machine having suitable means tor moving the chase, rectifying the pins with their p-rinting ends back int-o a common plane, and applying ink to thepins prior to making the printed impression.
These various objects I accomplish by ,hat certain construction and arrangement ot' parts to be hereinafter more specifically pointed out and claimed.
In the drawings,
Figure 1 is a detail plan view of one corner of the device. i
Figure Q is a section on the line 2-2 of Figure 1.
Figure S is a detail elevation of the eccentric chase locking member.kv
Figure 4 isa detail of one oi the pins.
Figure 5 is a plan view ot' the chase by itself. y
Figure 6 is a plan view of the complete machine.
Figure 7 is a side elevation oiE the coinplete machine.
Figure 8 is a detail end elevation of the one corner of the machine ony a larger scale. In my views l have not attempted to show the pins as small as they will usually be made. It will be understood that the dimension of the pins will be such that they form a dot on the object to be imprinted of the desired size and spacing. The pins shown are merely cylindrical tempered pieces ot' wire l having' their both ends flat.
rf'he chase is made up of a rectangular frame having sides 2, 2, and sides 3, 3, leaving an open rectangular space within. The sides 2, 2, carry within the channels 2"L thereof bars 4, which are adjusted in position by set screws 5. The sides 3, 3, are
'formed with channels 3d responding to the channels 2. They have also channels 6 in the tops thereof.
In the channels 3a are bars 7, which have pins 8 thereon, which pass through holes 9 in the bars 3. lVithin the top channels of the sides 3 are bars 10, 10, which have out out inclinednotches 11 therein which engage the pins 8.
The pin assembly is arranged within the chase with the pins abutting each other and the. bars 4 are adjusted to lock the pins together, while permitting individual movement of ,the pins. When the bars 10 are pulled lengthwise toward the corner between ,themjthel bars 7 are forced inward against the pin assembly in such a way as to lock them tightly against any displacement.
The manner of moving the bars 10 may be made simple by linking to the end of each bar a strip 12 and providing a mounting in the corner of the chase frame for a. shaft 13. The strips 12l Vare formed with apertures in theirI meeting ends, which lie over the eccentrics 14 and 15 on t-he shaft 13. These eccentrics are so arranged that when the handle 16 on the shaft is moved over the two bars 10 are pulled toward thel corner, thereby pushing in on the pins of the bars 7.
In the embodiment illustrated I have formed a hollow at the select-ed corner of the chase frame, and extending the ends ot the bars 10 through holes in the ends of the channel spaces 6, into this hollow space. The sha-'ft extends across the hollow space and the eccentrics and links are mounted within the hollow space', as is the operating handle.
The printing machine using the above chase is adapted especially for use with it, although it will be understood that the chase may be used in any desired manner.
The machine frame has a bed 17 on which are erected standards 18 for shafts 19, one at each end of the frame. These shafts are connected together at their ends by means of arms 2O on the shaft and links 21 between the arms.
At the corners of the machine beyond the shafts are b'ifurcated mounting lugs 22 for two lengthwise extending bars 23, said bars being connected together by rigid cross bars 24 coupling the ends together.
The two bars 23 have apertures 25 therein, which are set over the shafts 19, said slots 25 being elongated to permit up and down movement to the bars.
The bars have also projections or flanges 28 which engage over special shaped cams 26 on the shafts. Thus there is an engagement with the bars for each corner of the machine. rl`he cams have three iiats 27 at different distances from the shaft center. A handle 28 may be provided at a selected corner of the machine, said handle having a pin riding over a sector plate 29 having holes 30 therein for the pin. By means of the pin which is part of the sliding hand piece 31 on the handle, the shafts and cams can be located and held in desired position.
As the above described method of holding the handle is common practice in many forms of machine I do not show the same in detail.
rlhe chase is provided with rollers 32, which ride on the lengthwise bars 23, so that when the bars are raised by the cam device, the entire chase is elevated. The position ofthe bars is such that when the cam devices lower them to the lower point, the pins will all contact with the bed of the machine, thereby bringing them into a common plane.
l/Vhen the bars are partially lifted up the desired design may be impressed on the upper face of the assembly thereby bringing the lower ends of the desired pins into projection in the same design as that impressed. In Figure 1 is shown a letter A impressed in the upper surface of the pin assembly and I have found that any object pressed into the assembly will result in the transfer of the exact impression or intaglio into an extension of like shape on the lower face of the assembly. The impressing of letters can be made by a typewriter as shown in my copending application, Serial No. 560,237.
After this impression has been made the handle that locks the pins is swung to hold the pins in the depressed position.
The chase is then in position with the pins all elevated from the bed, including those which have been depressed. The chase may then be rolled to the other end of the frame` which is usually about twice the length of the chase.
As the chase travels across the center of the frame, the projected pins receive ink from a roller 40 supplied through a series of distributing rollers fed from a well l1 in the usual manner.
lVhen the chase comes over the far end of the machine, it is lowered to the half way point again for making an impression on a piece of paper, fabric, or whatever is dedesired. This piece will be located on a tympan 42 mounted in the bed on a series of posts 43 set in holes in the bed, said posts having springs la set around them so that the tympan has some small movement as the chase isdropped.
After the imprint has been made the parts are returned by raising the bars to their full height and rolling the chase back to the starting point, or at least far enough to receive another coating of ink to make another impression. The entire plate may then be dropped against the platen to rectify the pin assembly after the same has been freed. The motions are all applied to the pin frame or chase by means of the bars 23 Y which are raised and lowered by manipulating the handle 28, thereby operating the cams 26, which in turn act on the bars at the four corners of the machine.
I have not attempted to describe more than one modification of my device, and do not desire that my claims be construed without the full application of the doctrine of equivalents because of my failure to point out other structures which will accomplish the spirit of the invention.
Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is
1. A device for making printed impressions, comprising a frame, an assembly of pins set into said frame and retained thereby, said frame being adjustable to retain the pins in position within the frame, but individually movable and also adjustable to lock the pins in the frame.
2. A device for making printed impressions, comprising a frame, an assembly of pins set into said frame and retained thereby in position to permit individual adjustment of the pins in the assembly, and means on the frame to lock the pins in adjusted position.
3. A device for forming printed impressions, comprising a frame, a series of pins arranged parallel to each other in said frame and essentially cylindrical in shape, pressure bars comprising part of the frame and adapted to hold the pins in the frame while permitting individual pins to be depressed without moving the others, and means for imparting additional pressure to said bars to lock the pins against movenient during the forming of printed impressions by the depressed pins.
a. A device for forming printedimpressions, comprising a rectangular frame, bars slidable in said frame, a-series of pins avrranged in contact with each other between said bars, means for applying pressure to the bars toI hold the pins between them while permitting individual movement of selected pins, and means for applying by another mechanism, additional pressure to the bars to ho-ld the pins against further movement relative to the frame.
5. A device of the character described, a frame, a series of bars about the interior of the frame, means in the frame for eX- erting inward movement on certain of the bars, and additional means for exerting a predetermined pressure on other of the bars, and an assembly of pins mounted between the bars within the frame, for the purpose described.
6. A device for making printed impressions, comprising a frame, an assembly of pins set into said frame and retained thereby, said frame being adjustable t0 retain the pins in position Within the frame, but individually movable and also adjustable to lock the pins in the frame, said pins having fiat tops and bottoms.
7. A device for use in printing with a pin chase of substantially the character described, comprising a frame, means forming a track on said frame, a pin chase adapted to ride on said track, and means on the frame for raising and lowering the chase to positions of high elevation of the chase during printing, and full depression of the chase for rectification of the pins.
8. A device for use in printing with a pin chase of substantially the character described, comprising a platen or bed, a resiliently retained tympan, an inking device, and means for supporting a pin chase movably over the bed, said means being adapted for depression of the chase over the tympan for printing and elevation of the chase during a setting of the pins.
9. A device for use in printing With a pin chase of substantially the character described, comprising a frame, bars extending along said frame, a paper supporting means on said frame, a pin chase having means for riding on said bars. and means for elevating and lowering said bars, for the purpose described.
l0. A device for use in printing with a pin chase. comprising a frame, an inking device and a paper sup-port on said frame, and means for movably supporting a pin chase to permit movement thereof across the. frame in one plane and toward and away from the frame in another plane, whereby as asequence of operations the pins may be set, the chase given an inking movement and then the chase may be lowered against the paper support.
11. A device for use in printing with a pin chase, comprising a bed, rails extending along said bed, a paper support at one end of the bed, a rectifying base at theother end of the bed, an inking device intermediate the ends, and aV pin chase having means for riding on said rails and means for raising and lowering the rails. A
' -12. A device for use in printing with va pin chase, comprisingv av bed, rails extending along said bed, a paper support-at one vend of the bed, a rectifying base `at the other end of the bed, an inking` device intermediate the ends, and a pin chase having means for riding on said rails and means for raising and lowering tthe rails, vsaid means being `perable on the rails at the four corners of the frame. f I
13. A device for use in printing'vvith a pin chase, comprising a bed, rails extending along said bed and mounted for movement in planes at an angle to the bed, rock shafts atthe end of the bed, said shafts being interconnected andhaving cams thereof, said rails being adapted to engage said cams, and a paper support mounted at a portion of the bed between said rails, for the purpose described.
14. A device for use in printing, comprising a frame and shiftable means of uniform thickness held Within said frame and adapted upon imposition of an object on the upper face thereof to adapt itself to said object by a corresponding depression on the upper face, and to form an extension on the under face corresponding to the said depression, said extension thereby forming a copy of said object.
l5. A device for use in printing, comprising a frame, and shiftable means of uniform thickness held Within said frame and adapted upon imposition of an object on the upper face thereof to adapt itself to said object by a corresponding depression on the upper face, and to form an extension on the under face corresponding to the said depression, said extension thereby forming a copy of said object, said frame including means for locking said shiftable means in the position resulting from imposition of an object.
16. A device for use in printing, comprising a frame, and shiftable means held Within said frame and adapted upon imposition of an object on the upper face thereof to adapt itself` to said object by a corresponding depression on the upper face, and an eX- tenson on the under face corresponding to the said depression, said extension thereby forming a copy of said object, and a mounting device for movably retaining said frame, said mounting device being supplied with an inking member for the extended part of the shiftable means.
1'?. A device for use in printing, comprising a trame, and shiftable means held within said frame, and adapted upon imposition of an object on the upper face thereof to adapt itself to said object by a corresponding depression on the upper face, and an eX- tension on the under face corresponding to the said depression, said extension thereby forming a copy of said object, said frame including means for locking said sliiftable ieans in the position resulting from imposition of anobject, and a mounting device for movably retaining said frame, said mountingl device being supplied with an inkingvmember `for the extended part of the ysliiitable means.
18. A device for use in printing, comprising a frame, and shiftable means held withinv said frame and adapted upon imposition of an object on the uppei` face thereof to adapt itself to said objectl by a corresponding depression on the upper face, and an extension on the under face corresponding to the said depression, said extension thereby forming a copy of said object, and a mount-ing device for movably retaining said frame,csaid mounting device being supplied with an inking member for the extended part of the shiftable means, and said mounting device also having means for depressing the frame for forming printed expressions.
19. A device for use in printing, comprising a frame, and shiftable means held Within said frame, and adapted upon imposition of an object on the upper face thereof to adapt itself to said object by a corresponding depression on the upper'face7 and an extension on the under face corresponding to the said depression, said extension thereby forming a copy of said object, said frame including means for locking said sliiftable means inthe position resulting Jfrom an imposition of an object, and a mounting device for movably retaining said frame, Said mounting device being supplied with an inking member for the extended part of the shiftable means, and said mounting device also having means for depressing the frame for forming printed expressions.
JOHN Q. SHERMAN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US568601A US1489015A (en) | 1922-06-15 | 1922-06-15 | Printing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US568601A US1489015A (en) | 1922-06-15 | 1922-06-15 | Printing device |
Publications (1)
Publication Number | Publication Date |
---|---|
US1489015A true US1489015A (en) | 1924-04-01 |
Family
ID=24271951
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US568601A Expired - Lifetime US1489015A (en) | 1922-06-15 | 1922-06-15 | Printing device |
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Country | Link |
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US (1) | US1489015A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2524127A (en) * | 1946-11-06 | 1950-10-03 | Ibm | Printing character forming wires |
US2632386A (en) * | 1949-04-20 | 1953-03-24 | Burroughs Adding Machine Co | Wire type printing machine |
US2771025A (en) * | 1953-11-02 | 1956-11-20 | Ibm | Print impression mechanism |
US2839994A (en) * | 1955-03-25 | 1958-06-24 | John A Haag | Changeable dot stamping device |
-
1922
- 1922-06-15 US US568601A patent/US1489015A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2524127A (en) * | 1946-11-06 | 1950-10-03 | Ibm | Printing character forming wires |
US2632386A (en) * | 1949-04-20 | 1953-03-24 | Burroughs Adding Machine Co | Wire type printing machine |
US2771025A (en) * | 1953-11-02 | 1956-11-20 | Ibm | Print impression mechanism |
US2839994A (en) * | 1955-03-25 | 1958-06-24 | John A Haag | Changeable dot stamping device |
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