US282175A - dembkt - Google Patents

Description

ME'RRLTT H. DEME N'T,

or new YORK, N. v.

TY PE wR'lTlNG AND PRINTING MACHINE.

sPEc'IFIcA'rroN forming .part of Letters Patent No. 282,175, dated July 31, 1883.

' Application filed January 11,1882. (No model.)

To all whom it na y concern:

' Be; it known that I, MERRITT H. DEMENT, a citizen of the United States, residing at New} York, in the county of NewYork andState of:

' New York, have invented certain new and useful Improvements in TypeWriting and Print; ing Machines; andI do declare the following,

i to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use i the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon,which forma part of this specification. My invention relates tothe arts of type writing and printing; and it consists of the devices and combinations as hereinafter described, and specifically "pointed out in the claims. e I In the accompanying drawings, Figured is an endview of the machine. Fig. 2 is a side view of the same, showing cylinder with rods; running longitudinally in it, type-wheel, and; end of shaft. Figs. 7 and 8 are different views} of one of the rod ends. Fig. 3 is a view of a portion of one of the-type-rings with groove} Fig. 4 is a tongued ring to fit groove in Fig.1

3. Fig. 5 is a side elevation of a type, show-i ing groove. Fig. 6 isa'crossview of a seg-.

3o -ment of theiring in Fig. 4, showing tongue. I;

" 'donot, in this application, claim anything in;

reference to either of the Figs. 3, 4, 5, or 6,;

'nor in reference to the construction of the type-1' rings. Fig. 9 is a view of the end of a rod pass- 3 5 ing the bevel which crowds the rodback llltQi the" cylinder after printing. 3

My machine consists of a revolving cylin-j derwvith any desired number of longitudinal; grooves, in which are placed bars or rods ca- 4o pable of sliding in the grooves the desired dis-} tance. The rods arecaused to slide by means t of a keyboard. The key is depressed andthe I opposite end of thekey-bar is pressed against the cylinder. The key-bar being "provided? with a beveled head and the cylinder rods be-j ing provided with a beveled pin or head, when the two comein contact by the revolution ofi e the cylinder, the result is that the rodis sli-dj or forced along in its groove, soas to protrude from the end of the cylinder. At the end of the cylinder, and on the sameshaft concentric" out and the type.

pressed on the paper.

type, the whole being made to be movedlon gitudinally upon the shaft, so as to bring any desired row of type in position. Each key in the keyboard connects with and pushes out a particularrod; and that rod, when pushed out,

will protrude from the cylinder and be directly over the particular type belonging 'to the key that is operated upon. Astrip of paper (rep resented by the line G, Fig. 1) passes or lies immediately between the rod end when pushed The objects to be accomplished are to press the rod end on the paper strip, thus forcing the strip on the type and making the print or indentation; to gage the length of time the paper is thus held, so as to give each letter its proper space by the type and rod end so pressing the paper between them as to pull it along; to relieve the pressure instantly by a positive action, and to return the rod into the cylinder. To accomplish the first result, I provide a suitable bevel, (shown as H in Figs. 1 and 2,) along which the protruding rod end passes, and bywhich it is In order that each letter may have its proper space, I cause the rod ends to be made of varying thicknesses at a point near the end, (shown in Fig. 7 by Z,)-according to the width of the type on which it operates. The point Z, Fig. 7, being the portion of the rod end which passes along the bevel H, it will be seen that the wider the-rod end is made at Z the longer the rod end will be in passing the highest point of the bevel H. The rod is widened, as shown in Fig. 7, by adding the extra width on what may be called the forward side of the rod as it revolves, so that the rear side is plain. The paper having been pressed on the type and retainedthere the proper time to give eachletter its proper space, it becomes necessary to relieve the pressure and release the'paper.

Thislaccomplish the instant the rod end (a in Fig. 2, and Z, Fig. 7) shall have passed the highest point of the bevel H, Figs. 1 and 2, by providing a bevel so placed that the end ofthe rod y ,Figs. 7 and 8,will strike and rectly on the end of the rod, and as the rod end passes along it the rod is forced back to its position in the cylinder.

For the purpose of making or leaving blank spaces on the strip, such as occur between words, I place on the type-wheel, in the proper position to be operated upon by the rod connecting with the spacing-key, a blank type or pin with a flat or slightly convex head, having nearly or quite the same periphery as the typeheads. This may, if necessary, be slightly milled or roughened. Then I place on the inner side of the rod end, at the point Z, one or more small pins or points, the red at Z having the width to give the desired space. The pa per is pulled the desired distance by being, caught between the blank type and the rod end, the small pins or points on the latter holding it securely until the paper is released, as in the process of printing a letter, as above described.

It will be seen that in case several rows of type are used it may be necessary to provide the rods with other widened spaces at Z, if the different type coming under any rod should require different spacing. In such case the bevel-plate II should be made movable. WVith this mode of depressing the rod endby means of a stationary bevel and giving each letter; its proper space by meansof making the rod ends of various widths at the point Z, thus avoiding the necessity of using a large spacingwheel and of relieving the paper by a positive bevel action, so that when operated rapidly the paper will not be pulled too far the machine is capable of being operated at a larger number of revolutions per minute than by any other known mode of performing such actions. This enables me, even if I run my. machine at the same number of revolutions made by other machines, to enlarge my typewheel so as to accommodate on one row two full alphabets of type-that is, one of capitals and one of small letters-besides ordinary punctuation and other marks, even including numerals, if necessary, and thus make it unnecessary to shift from one row to another, as is now done at a great inconvenience and loss of time.

The process of printing by my machine is accomplished with marvelous rapidity, the cylinder being capable of making from three hundred to four hundred revolutions per minute, and printing at each revolution one or more or even all the letters on the type ring.

By turning the screws M M, Fig. 1, the bevel-plate H may be raised ordepressed to regulate the depth of the indentations made in the paper. p

I also make an improvement in the method of holding the type rigidly in place in the typering, and at the same time making them readily-removable. I accomplish the first result by making a groove around the side of the type-ring and in the types themselves, as shown in Fig. 3, and making a companion ring with a tongue to correspond with the groove, as shown'in' Fig. 4c, and placing the two rings together, the tongue fitting in the groove, thus firmly holding the type in place. The type are made removable with ease by making the type-ring of two semicircles, which,

the ends being clasped and held together by means of clasp-springs, or a hinge and spring, similar to the manner of clasping ladies bracelets. To more readily fix the location of each type exactly under the proper rod end, and to keep the type-ring from revolving on the shaft, I make tongues in the shaft, as shown in Fig.

when put together 011 the shaft, form a.- ring,

3, which fit in corresponding grooves in the matrices, it will print type forms or letters, in

ink, on astrip of paper. This is accomplished ing a suitable inking apparatus. For the purpose of providing a proper spacing mechanism for this process, I mill the periphery of the ring shown in Fig. 4, or place a suitable milled ring in the proper place on the type wheel, with the proper periphery, which will perform the function, with the aid of. the rod end, of grasping the paper and causing it to space, which is performed in the other process by the type.

I am aware that there is now in use a machine having a cylinder and sliding rods in combination with a cam resting upon a spring, the rod, when operating, passing under a fixed Joints are also to be made in the rods by depressing the bevel-plate H by means of l the screws M M, as above described, and addplate, which presses the spring down until the rod reaches the printing point, when the. rod is released, and the spring operates to throw it upward on the type.

I am aware, also, that a cylinder and sliding rods have been used in combination with a pawl operating in connection with a ratchet wheel, the rod, when. operating, striking the under side of the pawl, and causing it'to enof sliding rods, and with a rigid stationary In testimony whereof I affix my signature in 10 cam, by means of which the rods are pressed presence of two Witnesses.

upon the material operated upon, substan i tially as shown and described. MERRITT H. DEMENT.

5 2. In a type Writing or matrix machine, the i combination of a series of rods in a revolving WVitnesses: V

holder and a Vertically-adjustable cam for FREDERIO M. ADAMS,

pressing the rods upon the material operated GEORGE J. CHAMBERS.

upon. o

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