US2260400A - Marking machine - Google Patents

Description

Oct. 28, 1941.

D. F. PUTNAM MARKING MACHINE Filed Feb. 3, 1940 s Sheets- Sheet 1 \nvenf fo rs. Charles E Robbins DcwidEFuT nqm "Chufles H.Cheesqfnun v ATT Oct. 28, 1941.

D. F. PUTNAM ,ET AL MARKING MACHINE Filed Feb. 3, 1940 s Shets-Sheet '2 I lnvenTors. Chufles F Robbins DuvidEPuTnom v Chufles H.Che

esemon 2f Patented Get. 28, 1941 UN TED MARKING MACHINE,

David F. Putnam and Charles F. Robbins, Keene,v

and Charles H. Cheescman, Marlboro, N. H., assignors to Markem Machine Company, Keene, N. H., a corporation of NewHampshir-e Application February s, 1940, Serial No. 317,170

16 Claims. (or. 101-477) This invention relates to a marking machine or printing machine of the type which operates on the transfer or offset method, and which comprises a type member or pattern member and a transfer or offset roll which receives its ink impression from the type member and which is separable from the machine and is adapted to be manually removed from the machine and rolled over the work to transfer the ink impression thereto.

One of the objects of the present invention is to provide a machine of this type which is so constructed that each time the transfer roll is inserted into the machine, to receive an ink impression, said ink impression will always be laid in the same position on the transfer roll so that the successive ink impressions on said roll will register exactly with each other. This insures that the ink impression carried by the transfer roll will always be sharp and clear-cut and obviates the necessity of cleaning the roll after each operation in order to obtain a sharp clear-cut printed impression on the work.

This object is attained by providing means for giving the type member or pattern member: a. cyclic movement, that is, a movement through a path which begins and ends at the same point, and further providing means for positively driving the transfer roll when it is. in engagement with the type member to receive its ink impression, and further providing means whereby the transfer roll can be inserted into its operative position in the machine. or can be removed therefrom only when said roll is in a predetermined angular position.

A further object of the invention is to provide a machine of this type by which a plural-color ink impression can be laid on the transfer roll and thus transferred to the work. For this purpose, we propose to provide a machine having a plurality of separate type-carrying members, each carrying type characters comprising a part of the final printed impression and to provide means for inking the type on the type members with inks of different color. The machine is so constructed thatwhen the manually manipulated transfer roll is placed in the machine and the latter is set in operation,- each type-carrying member will operate to deposit on the transfer roll an ink impression of a color difierent from that made by the other type-carrying members, the several differently colored ink impressions being so deposited on the transfer roll relative to each other as tomake a complete plural color ink impression which is the reverse of the final the article to be printed.

impression to be printed. When the transfer roll has thus received its plural color impression, it is removed from the machine and rolled over the object to be printed, thereby leaving on said object the plural color imprint.

In order to give an understanding ofthe invention, we have illustrated in the drawings a selected embodiment thereof which will now be described, after which the novel features will be pointed. out in the appended claims.

Inthe drawings: Fig. lis a front View of a machine embodying our invention.

Fig. 2 is a section on the line 22, Fig. 1.

I Fig. 3 is a fragmentary detail showing the driving, spindle for the transfer roll.

0 Fig. 4"isaside view of the transfer roll and its holder. a

Fig. 5. is a section on the line 55, Fig. 1. Fig. 6 is av fragmentary view illustrating means for driving the ink rolls.

7 '7- is a perspective view of the transfer roll.

Fig- 8 is a fragmentary perspective view of the clutch end of the spindle for driving the transfer roll.

Fig 9 is a diagrammatic View illustrating the manner in which the ink. impressions are made ohthe transfer roll.

Fig. 10 is a view illustrating the use of the transfer roll in making the printed impression on Fig. 11 is a view illustrating a two-color imprint which can be made with the machine herein described.

Fig. 12.is a diagrammatic view illustrating the driving means for the machine. I

In. order-to illustrate the invention, we havechosen to show it as embodied in a machine designed to. make a two-color imprint, but we desire to state that the invention may be embodied in amachine capable of making an imprint of 7 three for more colors.

' InFig. 11 we have shown an illustrative imprint which consists of the legend A. B. Co.,'

indicated at l, surrounded by an elliptical border 2.. With our improved machine it is possible to make at one operation a printed impression similarto. that illustrated in Fig. 1-1 in which the.

A. B..Co. will be printed in one color and the elliptical border in a different color.

As stated above, this is accomplished by employing two type-carrying members, herein shown as rotatable members, one of which carries type characters corresponding to, that part of the final printed impression which is in one color and the other type-carrying member carrying type characters corresponding to the part of the final printed impression which is in the other color. In the illustration shown in Fig. 11, one rotatable type-carrying member would have type thereon for printing the lettering A. B. 00., and the other type-carrying member would have type thereon adapted to make a printed impression of the elliptical border 2. The type carried by the two type-carrying members may be inked with differently colored ink, and the machine is so constructed that when thetransfer roll ismanually inserted into the machine, each type-carrying member makes an ink impression on the surface of the transfer roll, the two ink impressions having the same relative arrangement on the transfer roll as they are to have in the final printed impression.

The transfer roll is then removed from the machine and is rolled over the surface of the object to be marked, thereby leaving on the surface the two-color printed impression.

*The two rotatable type-carrying members are indicated at 3 and 4 respectively, said members being in the form of rolls carried by shafts 5 and 6 which are suitably mounted in the supporting frame indicated generally at I.

The roll 3 will carry type corresponding to the part of the final printed impression which is to be printed inbne color, for instance the letters A. B. Co. in the illustration given in Fig. 11, and the type-carrying roll 4 will have on its periphery a type character designed to print the border- 2 of the final printed impression. The manually operated transfer roll which receives the ink impressions from the two typecarrying rolls 3 and 4 and by which the impression is conveyed to the article to be marked is indicated at 8; This roll is separable from the machine andis carried in a suitable holder 9 having a handle ID by which it may be manipulated manually to place the transfer roll in the machineto receive an ink impression and to remove the roll from the machine and operate it to transfer the ink impression to the Work.

Referring now to Fig. 1, the two shafts 5 and 6 -which support the type-carrying members 3 and 4 are shown as mounted in two'bearingbrackets II and I2Which are provided with bearingsl3 and I4 for the shafts. These bearing brackets are illustrated as carried by and depending from an overhanging arm I5 with which the frame] is provided. Each bearing bracket is shown as having ahead portion I6 at its upper end which partiallyembraces the lower edge of the overhanging arm I5, the latter being provided at'each side with a laterally extending rib orflange'll to which the head members I6 are clamped. Each head member is .provided with a clamping plate I8 which overlies the rib I1 and is clamped to the head I6 by clamping bolts I9. This provides a construction by means of which the'bearing brackets II and I2 can be adjusted longitudinally of the arm I5 if desired.

Means are provided for rotating the shafts 5 and 6, thereby to rotate the type-carrying mem-' bers 3'and 4, and such means includes a onerevolution'clutch device designed to bring the shafts to rest after they have each made one complete rotation. The type-carrying members reservoirs 26, 21,

ing shaft 29 which carries at its enda gear 2| that meshes with a gear 22 fast on the shaft 5 and also with a gear 23 fast on the shaft 6. The type-carrying members 3 and 4 are thus rotated in the same direction and at the same speed.

Any suitable one-revolution clutch device may be used for controlling the machine. The gear 2| on the driving shaft 29 has such a size relation to the gears 22, 23 that two rotations of the shaft 20 will be required to give one rotation to the gear 22 or the gear 23. Hence at each operation of the machine, the driving shaft 20 will make two revolutions. In order to provide for this, theshaft 20 is shown as having fast thereon a gear 9| which meshes with a, gear 92 having twice the size of the gear 9|, and the gear 92 may be mounted on a power shaft 93 and connected to said shaft 93 through a suitable onerevolution clutch device, indicated diagrammatically at 94 in Fig. 12, said clutch device being provided with an operating connection 95 leading to a suitable treadle. When the treadle is actuated, the clutch .94 will be operated to engage the gear 92 with the power shaft 93, and will also operate to unclutch the gear 92 from the power shaft when said gear has made one revolution. This one revolution of the gear 92 will produce'the required two revolutions of the shaft 29 and gear 2| which is necessary to give one; type-carrying rolls revolution to each of the Band 4. I

"Inasmuch as any suitable one-revolution clutch may beemployed, we have not thought it necessary to' illustrate said clutchin any greater detail than in the diagrammatic view, Fig. 12.

' Any suitable means may be employed for supplying ink of the desired color to'the type characters '24, '25, on the two type-carrying rolls 3 and 4. As shown in Fig.

secured to the bracket II of the frame' 1, each reservoir having an ink roll by which the type characters on the corresponding type-carrying member is inked. These ink rolls are indicated at 28 and 29 respectively. Each T ink .rolli-is preferably positively driven so as to rotate at the same surface speed as the type mer'nberto which it supplies ink, so that the inking ofthe type characters is accomplished by a rolling contact between them and the ink roll.

' 1 The ink roll 28 for the reservoir 26 is fast on a sha'ft ,39, and this shaft is connected by a train of gearing to the gear 22, by which the typecarrying member 3 is rotated. Such train of gearing comprises a gear 3| fast on the ink roll 1 shaft 30 whichmeshes with an intermediate gear 32,1the latter meshing with a of theshort' shaft 34, which other end agear 35 gear 33 on one end shaft carries at its that meshes with the gear 22. The'shor't shaft 34 is supported in suitable bearings '36 carried by the bearing bracket II, and the intermediate gear 32 may be mounted on a studshaft 31 also carried by saidbearing bracket? II.

.A'similar systemof'ge'aring is employed for connecting the gear 23 on the shaft 6 to the shaft 38 carrying the ink roll 29.

The machine is provided with suitable means for supporting the removable transfer roll in an v operative position to receive anink impression through a path which begins and ends at the 1 same point.

. .Thetwo shafts 5 and 6;are driven from a 'dIiV-r from the type on each of the type-carrying rolls Siam-4. l Y i The transfer roll 8 has afsurface of rubber,

neoprenefor any other suitable material which will're ceive a good ink impression from, the type. characters 24 and 25 and which will transfer 2, there are two ink such impression to the article to be'marked This transfer roll is fast on a supporting shaft 39 which is somewhat longer than the roll 8 and which is rotatably mounted in the cheek pieces 49 of the holder 9. The ends 4|, 42 of the shaft 39 project beyond the cheek pieces 49 and form trunnions by which the roll and the holder is supported when it is placed in the machine. As stated above, the holder 9 is also provided with a handle 49 'by which it and the roll carried thereby can be manually manipulated to place it in the machine and withdraw it therefrom.

- For removably supporting the transfer roll in the .m'achine in its position to receive an ink impression from the type-carrying rolls 3 and 4, 1

there is provided a roll-supporting means comprising two supporting members 43, 44, which are spaced apart a distance to receive between them the holder 9 and each of which is formed with two fingers 46, 41, forming between them an open-ended guiding slot into which the protecting ends 41, 42 of the shaft 39 may be inserted. These supporting members 43, 44, are secured to blocks 48 which in turn are secured to the bearing brackets ll and I2.

When the transfer roll with its holder 9 is inserted manually into the machine with the projecting ends 41, 42, of the shaft 39 occupying the :slots 45 and said holder is positioned in the machine with the projecting ends 42, 43, of the shaft in engagement with the ends of the slots 45, as shown in Fig. 5, said transfer roll 8 will then be positioned so that the type characters 24,25 on the type-carrying rolls 3 and4 will contact therewith as the said type-carrying rolls are rotated.

Means are provided for rotating the transfer roll when it is thus placed in the machine to receive the printed impression, such means being constructed so that the transfer roll will rotate at the same surface speed as the type-carrying rolls 3 and 4, whereby as each type-carrying roll makes its rotation, the type thereon will leave an ink impression on the surface of the transfer roll.

- This driving means for the transfer roll is so constructed that said transfer roll can be insorted into the machine or removed therefrom only when it is in a predetermined angular position, and as a result, the successive ink impressions which are made upon the transfer roll will all be in exact register so that even after the transfer roll has received repeated ink impressions, the impression left thereon will be sharp and clear-cut.

The transfer roll receives its rotation from a driving shaft 49 which is journaled in one of the blocks 48, said shaft having a gear 59 thereon which meshes with an intermediate gear 5| that, in turn, meshes with the gear 2 I, the latter having a wide face to permit it to mesh both with the gear 5| and with the gear 22 on the shaft 5.

A clutch device is provided for connecting the shaft 49 to the transfer roll shaft 39, such clutch device being constructed so as to permit the transfer roll to be readily inserted into the machine or withdrawn therefrom. The end of the driving shaft 49 is shown as having a wedgeshaped clutch projection 52 which is adapted to fit into a tapered slot 53 with which the projecting end 42 of the transfer roll shaft 39 is provided, such clutch projection 52 and the slotted end 42 of the shaft 39 constituting separable clutch members.

We have-stated above that the driving shaft 29 3 ends of "the slots 45.

is :driven through the medium of a clutch device constructed to bring the shaft to rest after each operation at a predetermined position, and this position is one in which the shaft 49 will always bestopped with the wedge-shaped clutch projection '52 extending horizontally and with the thin edge of said projection presented toward the front, as shown in Fig. 3. If it be assumed that the transfer r0118 has the angular position shown in Fig. '7 in which the wide end of the slot 53 is directed away from the handle l0, then it will be understood that when the holder 9 for the transfer roll is "manually inserted into the supporting members 43, with the trunnions 4!, 42 of ithe shaft 39 entering said slots 45, the shaft 39 of the transfer roll will become automatically clutched tor coupled to the shaft 49 by the movement of the holder '9 into a position in which the trunnions 41, 42, of the transfer roll engage the Since the slotted end 42 of the transfer roll shaft 39 can only be coupled to the clutch projection 52 of the driving shaft 49 when the shaft 39 is in a predetermined angular position, it follows that the transfer roll can be inserted into the machine only when it occupies a predetermined angular position. As a result, each ink impression is laid on the transfer roll in exactly the same position, and successive ink impressions Will register exactly with each other. Hence the ink impression on the transfer roll will always be sharp and clear-cut, and it will not be necessary to clean the transfer roll after each operation in order to obtain a clearcut ink impression.

In using the machine, the operator grasps the handle 10 and inserts the transfer roll into the machine with the trunnions 4|, 42 occupying the open slots 45 of -the supporting members 43, 44, and :this operation will automatically couple the shaft 39 of the transfer roll to the driving shaft 49. The operator then starts the machine in operation which will cause the shafts 5 and 6 each, to make one revolution after which the clutch will bring the machine to rest. During this revolution, the type characters 24, 25, are inked from the ink rolls, the type characters 24 being inked by ink of one color and type characters 25 receiving ink of another color. During the single rotation of each of the type members 3 and 4, the transfer roll 8 is rotated through the driving connections above described at the same surface speed as the type-carrying rolls 3 and 4, and the type characters on each roll 3 and 4 will during such single rotation make an ink impression on the surface of the transfer roll 8.

The relative location of the 'type characters 24xand 25 on the type-carrying rolls 3 and 4 is such that the two ink impressions which are made on the transfer roll 8 (one ink impression from each of the type-carrying rolls 3 and 4) are so related that the complete impression on the transfer roll corresponds to the impression which is to be printed or marked on the article. For instance, if the final printed impression is that illustrated in Fig. 11, then the type characters 24,, 25, will have :such relative positions on their respective rolls that the two-color ink impression on the transfer roll 8 will be in the form of the iettering A. B. Go. inside of an elliptical border, the letters, of course, being reversed.

The gearing herein illustrated for driving the transfer roll is such that said roll will make two rotations for each rotation of the shafts 5 or 6., and during such two rotations of the transfer roll, an ink impression will be laid on the surface thereof by'each type-carrying roll. The onerevolution clutch 94 will bring the machine to rest automatically after the shafts 5 and 6 have each made one rotation and with the driving shaft 49 in the position shown in Fig. 3. When the machine has come to rest, the operator withdraws the transfer roll.8 from the machine and then, while still grasping the handle I0, rolls said roll over the surface of the article 54 to be marked, thereby leaving a two-color printed im pression on the article 54.

In order that the successive ink impressions which are laid on the surface of the transfer roll will exactly register with each other, said roll is provided with means for bringing it to rest always in a predetermined angular position after it has been used for making a printed impression on the article 54. As shown in Fig. 5, the roll 8 is provided with a spring-pressed ball 55 in one side face which is adapted to enter a recess 56 formed in one of the cheek pieces 40, The ball 55 is backed by a suitable spring 51 which is seated in a recess 58 formed in the central portion of the roll 8. When this ball 55 is occupying the recess 55 the shaft 39 is positioned with its tapering slot 53 in the position shown in Fig. 7.

The engagement of the ball 55 in the recess 56 is only suflicient to lightly hold the transfer roll from turning and is not sufiicient to interfere with the rotation of the roll when it is applied to the surface of the article 54 to be marked.

In marking the article 54, the operator will move the transfer roll over the surface of the article until the roll has been given one complete rotation and the ball 55 again clicks into its recess 55. The transfer roll is then properly indexed to be re-inserted into the machine, in order to receive another ink impression, and because rollcan only be inserted into the machine and coupled to its driving shaft 49 when said roll has a predetermined angular position, it will follow that the successive ink impressions which are laid on the surface of the roll 8 will always register with each other and said roll will thus carry a sharp clear-cut ink impression.

Our machine is particularly useful in applying a printed impression on the surface of an article which cannot conveniently be placed in a printing press or supported on the platen of a mark{- ing machine. There are many bulky articles on the surface of which it is desired to imprint some legend descriptive of the machine, or the name of the manufacturer, or some trade mark designation, etc. With the machine herein illustrated, the same impression of the legend which it is desired to imprint on such bulky article may be laid on the transfer roll and then the transfer roll may be removed from the machine and used as shown in Fig. to transfer the ink impression to the surface of the bulky article 54.

The holder 9 for the transfer roll is shown as having one of its cheek pieces 40 extended as indicated at 89, and this extension is provided withthe laterally projecting stud 88 having a head 81.; This stud 88 with its head may constitute a guiding projection to engage some portion.

of the article on which the imprint is to be made, and thereby to assist in correctly directing the movement of the transfer roll during the manual transfer of the printed impression to the article.

This guard projection of course, could only be usedxwith' articles that have some portion with which the projectio'n'could cooperate.

While we have illustrated herein a-machine comprising two type-carrying rolls, each carrying'type characters representing a .part of the final'prlnted impression, yet the invention can also be embodied in a machine which includes only one type-carrying roll, or in-a machine having more than two type-carrying rolls. If the machine has only one type-carrying roll, then said roll will, of course, carry type corresponding tothe complete printed impression to be made. The feature .of the transfer roll, which is separable from the machine and can be manually placed in the machine to receive the ink impression and can then be manually removed from the machine and manually manipulated to apply this ink impression to the article to be marked, can be embodied in a machine having one or more type-carrying rolls. By the term ink as herein used, we refer to-any printing or marking compound such as is commonly used for marking different articles or making a printed impression of any kind. Furthermore, while we have shown the type-carrying member as a rotary member, yet the invention is not necessarily limited to the use of a rotary member, as a type-carrying member having any cyclic movement arranged so that the transfer roll will have a positive rolling contact therewith may be used without departing from the invention.

An important feature of the invention is that when the machine is operated, the type-carrying member always comes to rest in a predetermined position at the end of each cyclic movement, and the transfer roll is so arranged that it can only be inserted into the machine to receive an ink impression when it is in a predetermined angular position, thereby ensuring that all the ink impressicns which the transfer roll receives register exactly with each other.

We claim:

1. A marking machine comprising a rotatable type-carrying member having type characters thereon, means to ink the type characters, a transfer roll, aho-lder in which the roll is rotatably mounted and which is separable from the machine and is adapted for manual manipulation when removed from the machine, means for removably supporting the transfer roll in the machine in operative position to receive an ink impression from the type-carrying member, means for rotating the type-carrying member, and means for rotating the transfer roll when it is in its operative-positiomsaid means including a clutch-which becomes automatically coupled when the transfer roll is placed in its operative position, but which permits the transfer roll to be manually removed from the machine and to be manually manipulated to transfer the ink impression to the work.

2.- A marking machine comprising two rotatable type-carrying members, each having thereontype characters to print part only of the im-- print that is ultimately to be made, means to ink the type characters, a transfer roll, a holder in which the transfer roll is rotatably mounted and which is separatable fromthe machine and adapted for -manual'manipulation, means for removably supporting the holderin the machine with the transfer roll in an operative position to receive an ink impression from each'typecarrying member, means for rotating the typecarrying members, adriving shaft for the transferroll, and a'coupling for connecting said driving shaft to the transfer roll, said coupling comprising two separable coupling members capable of being. coupled or uncoupled onlywhen the transfer roll and the driving shaft-occupy a predetermined angular position.

3. A marking machine comprising a plurality of rotatable type-carrying members, each member having type characters corresponding to a part of the imprint that isto be ultimately made, separate means to ink the type characters on each type-carrying member, means to rotate the type-carrying members, a transfer roll separable from the machine and adapted for manual manipulation, means removably supporting said transfer roll in the machine in position to have an ink impression laidthereon by each typecarrying member as it is rotated, and means operative when the transfer roll is in the machine to rotate the transfer roll simultaneously with and at the same surface speed as the type-carrying members, whereby the type characters on each type-carrying member will lay an'ink impression on the transfer roll, the transfer-rollrotating means comprising a coupling having two separable coupling members which can be separated to permit removal of the transfer roll from the machine or coupled together as the transfer roll is inserted into the machine only when the transfer roll is in a predetermined angular position. I

4. A marking machine comprising two rotatable type-carrying members, one having type characters thereon corresponding to a part of the imprint to be made and the other having type characters thereon corresponding to the remainder of said imprint, means to rotate the typecarrying members, separate means to ink the type oneach type-carrying member, a transfer r011 separable from the machine and adapted for manual manipulation, means for removably supporting the transfer roll in the machine in position to receive an ink impression from each type-carrying member, a driving shaft for rotating the transfer roll, a clutch for automatically coupling said transfer roll to its driving shaft when the transfer roll is placed in the machine in position to relieve its ink impression, said clutch comprising two separable clutch members, one carried by the driving'shaft and the other rigid with the transfer roll and. removable from the machine therewith and a driving connection between the driving shaft 'and the means for rotating the type-carrying members by which the transfer roll is rotated at the same surface speed as the type-carrying members.

5. A marking machine comprising two rotatable type-carrying members, one having type characters thereon corresponding to part of the imprint that is to be made and the other 'having type characters thereon corresponding to the remainder of such imprint, separate means to .ink the type characters on each type-c'arryingmember, a transfer roll separable from the machine and adapted for manual manipulation, said roll having trunnions, a support constructed to removably support said transfer roll by its "trunn'ions in the machine and in position to receive an ink impression from the type characters on each type-carrying memberas it rotates, a driving shaft for the "transfer roll, a clutch for automatically coupling said driving shaft to one of the trunnions of the transfer roll when the. latter is placed in its support, and a driving connection between the driving shaft and the means for rotating the type-carrying members, by

which the transfer roll is rotated at the 'same surface speed as the type-carrying members.

6. A marking machine comprising a frame, a

type-carrying member rotatably mounted therein and having type characters thereon, means to ink the type characters, a transfer roll, a holder therefor in which the transfer roll is rotatably mounted and which is separable from the machine, said holder having a handle by which it can be placed in the machine with the roll in an operative position to receive an ink impression from the type characters and can be removed from the machine, said frame having open bearings in which the transfer roll is removably supported when in operative position, means for rotating the type-carrying member, and means operative when the transfer roll is in its operative position for rotating said roll, said means including a couplinghaving separable members which can be coupled together or uncoupled only when both the type-carrying member and a transfer roll are in a predetermined relative angular position.

7. A marking machine comprising a frame, a type-carrying member rotatably mounted therein and having type characters, means to ink the type characters, a transfer roll, a holder therefor separable from the machine and having a handle by which it can be manually inserted into the machine to place the transfer roll in an operative position to receive an ink impression from the type characters and by which it and the roll carried thereby can be removed from the machine, said transfer roll having trunnions and said frame having open bearings to receive the trunnions when the transfer roll is inserted into the machine, a driving element for the transfer roll, means to rotate both the type-carrying member and said driving element, and a clutch for connecting the transfer roll to the driving element comprising separable'me'mbers, one of which is carried by the transfer roll, and which can be coupled together or uncoupled only when the type-carrying member and the transfer roll are in a predetermined relative angular position.

8. A marking machine comprising a frame, a type-carrying member rotatably mounted therein and having type characters, means to rotate said member, means to ink the type characters, a transfer roll, a holder in which the transfer roll is rotatably mounted and which is separable from the machine, said holder having a handle by which it can be manually manipulated, means for removably supporting said holder in the machine with the transfer roll in an opera-tive position to receive an ink impression from the type-carrying member, a driving shaft for rotating the transfer roll, a clutch which automatically couples the transfer roll to the driving shaft when the holder is placed in the machine but which permits the holder to be removed from the machine, and driving connections between said driving shaft and the means to rotate the type-carrying member.

9. A marking machine-comprising a frame, a type member mounted thereon, means to ink the same, means to give the type member a cyclic movement and bring it to rest in apredetermined position .at the end of such movement, a transfer roll, a holder in which the transfer roll is rotatably mounted and which is separable from the frame, the latter having means for removably supporting the transfer roll in operativeposition to receive an ink impression from the type member, said holder and transfer roll, when removed from the frame, being adapted 'for manual manipulation to transfer the ink impression from the roll to the work, and means actuated by the type-mem'ber-moving means for rotating the transfer roll when it is in its operative position, said means including a coupling comprising two separable coupling members, one of which is mounted on the holder, which coupling members can be operatively coupled together as the transfer roll is introduced into the machine only when the type member is in its predetermined position of rest.

10. A marking machine comprising a frame, a type member mounted thereon, means to ink the same, means to give the type member a cyclic movement and bring it to rest in a predetermined position at the end of such movement, a transfer roll, a holder in which the transfer'roll is rotatably mounted and which is separable from the frame, the latter having means for removably supporting the transfer roll in operative position to receive an ink impression from the type member, said holder and transfer roll, when removed a from the frame, being adapted for manual maanipulation to transfer the ink impression from the roll to the work, and means actuated by the type-member-moving means for rotating the transfer roll when it is in its operative position, said means including a coupling comprising two separable coupling members, one of which is mounted on the holder, which coupling members can be operatively coupled together as the transfer roll is introduced into the machine and can be uncoupled to permit removal'of the transfer roll from the machine only when said type member is in its predetermined position of rest.

11. A marking machine comprising a frame, a

type member mounted thereon, means to ink the same, means to give the typemember a cyclic movement and bring it to rest in a predetermined position at the end of such movement, a transfer roll, a holder in which the transfer roll is rotatably mounted and which is separable from the frame, the latter having means for removably supporting the transfer roll in operative position to receive an ink impression from the type member, said holder and transfer roll, when removed from the frame, being adapted for manual manipulation to transfer the ink impression from the roll to the work, and means actuated by the type-member-movlng means for rotating the transfer roll when it is in its operative position, said means including a coupling comprising two separable coupling members, one of which is mounted on the holder, which coupling members can be operatively coupled together as the transfer roll is introduced into the machine only when the transfer roll has a predetermined angular position in its holder.

12. A marking machine comprising a frame, a rotatable type member mounted therein, means to ink the type member, means to rotate the type member and bring it to rest in a predetermined angular position after each rotation, a transfer roll, a holder in which the transfer roll is rotatably mounted and which is separable from the frame, the latter having means for removably supporting the transfer roll in an operative posi tion to receive an ink impression from the type member, said holder, when removed from the frame, being capable of manual manipulation to roll the transfer roll over the work and thus transfer the ink impression thereto, and means actuated by the type-member-rotating means for rotating the transfer roll when it is in its operative' position, said means including a coupling comprising two separable coupling members, one of which is mounted on the holder, which coupling members can be operatively j coupled together as the transfer roll is introduced into the machine only when the type member is in its predetermined position of rest.

13. A marking machine comprising a frame, a rotatable type member mounted therein, means to ink the type member, means to rotate the type member and bring it'to rest in a predetermined angular position after each rotation, a transfer roll, a holder in which the transfer roll is rotatably mounted and which is separable from the frame, the'latter having means for removably supporting the transfer roll in an operative position to receive an ink impression from the type member, said holder, when removed from the frame, being capable of manual manipulation to roll the transfer roll over the work and thus transfer the ink'impression thereto, and means actuated by the type-member-rotating means for rotating thetransfer roll when it is in its operative position-said means including a coupling comprising two separable coupling members, one of which is mounted on the holder, which coupling members can be operatively coupled together as the transfer roll is introe duced into the machine only when the type member is in its predetermined position of rest and the transfer roll has a predetermined angular position relative to that of the type member.

14.-A marking machine comprising a pattern member, means to ink the same, a transfer roll, aholder in which the roll is rotatably mounted and which is separable from the machine and is adapted for manual manipulation when removed from the machine, means for removably supporting the transfer roll in the machine in operative position to receive an ink impression from the inked pattern member, and means. to produc a rolling surface engagement between the pattern member and the transfer roll when the latter is in such operative position, thereby to lay an ink impression on the transfer roll, I

said means including a separable driving connection which permits the transfer roll to be withdrawn from the machine or inserted thereinto only when said transfer roll is in a predetermined angular position relative to the pattern member.

15. A marking machine comprising a pattern member, means to ink the same, a transfer roll, a holder in which the roll is rotatably mounted and which is separable from the machine and is adapted for manual manipulation when removed from the machine, means for removably supporting the'transfer roll in th machine in operative position to receive an ink impression from the pattern member, and means for giving the pattern member and the transfer roll a relative movement during which said transfer roll has a rolling contact with the pattern member and thereby receivesfrom the latter an ink imp-ression, said means including a driving connection having two separable members, one of which is carried by the transfer roll, which separable members can only be separatedto permit removal of the transfer roll from the machine and can only be coupled to permit insertion of the transfer roll into the machine when the transfer roll has a predetermined angular relation to the pattern member.

16. A marking machine comprising a rotatable pattern member, means to ink the same, a transfer roll, a holder in which the transfer roll is rotatably mounted and which is separable from ing connection including two separable driving elements which can only be separated to permit manual removal of the transfer r011 from the machine and can only be coupled by the insertion of the transfer roll into the machine when said transfer roll has a predetermined angular position with relation to the pattern mem-' ber.

DAVID F. PUTNAM. CHARLES F. ROBBINS. CHARLES H. CHEESEMAN.

CERTIFICATE OF CORRECTION Patent No. 2,260,)4.00. October 28, l9l l.

DAVID F. PUTNAM, ET AL. It is hereby certified that error appears in the printed specification of the above nmr lbered patent requiring correction as follows: Page 5, first column, line 1414., claim for the word "relieve" read receive; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case vin the Patent Office.

Signed and sealed this 2nd day of December, A. D. 19 41.

Henry Van Arsdale,

(seal) Acting Commissioner of Patents.

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