US539651A - Type-writing machine - Google Patents

Description

L Lb e e h s s ...u e e h s 4 Dm. PMU .1 H S S. E .n d o M o m TIPI: WRITING MACHINE.

v"Patented May 21, 1895.

Waff/2666 es;

(No M0551.) y 4 sheenssheet 2.

E. S. SHIMER.`

TYPE WRITING MACHINE. No. 539,551. rammed May 21, 1895.

ma nunms Pneus cov. mma-mwa, wnsnlnmon. u. cs

(No Model.) v y v 4 sheets-sheet 3.

E. S. SHIMER.

, `TYPE WRITING MACHINE. N0. 539,651. Patented May 21, 1895.

I mi Norms Prtns 00,. wma-LITRO.. WASI-Mmmm o. c.

(No M odglg Y 4 sheets-sheet 4.

' E. S. SHIMER.

TIPI: WRITING MACHINE.

No. 539,651.. 1 Patented May121, 1895.

Mil@ e In vez? for MM www I /W Any,

NITE STATES v .3..WW"'" I ELMER S. SHIMER, OF- MILTON, PENNSYLVANIA.-

l-rYlMa-wRli-l'rie MACHINE.

SPECIFIGATION formingpartpof Letters Patent No. 539,651, dated May 21, 1895. Application filed March '7 L1894. Serial No. 502,672. (No model.)

To all whom it may concern:

Be it known that I, ELMER S. SHIMER, a citizen of the United States of America, resid ing in Milton, in the county of Northumberland, in the State of Pennsylvania, have invented certain new and useful Improvements in `Type-VVriting Machines, of which the following is a specification.

My invention has relation toimprovements in type-Writing machines, and consists, first, in improved ribbon-feed and spool-mechanism, and, second, Vinimproved attachment for operating the signal or bell and adjusting the right-hand marginal stop.

These improvements are all fully described hereinafter, and their novelty particularly pointed out and distinctly claimed.

In the accompanyings drawingsI have fully and clearly illustrated my invention, and ret'- erence being thereto had, Figure l is a plan view ot a type-writing machine, the top plate being broken away to` show the ribbon mechanism and the-shifting means for reversing the ribbon-feed. Fig. 2 is a detail plan view of the carriage-track and carriage-bar. Fig. 3 is a detail of the bell-ringing mechanism. Fig. 4 is adetail of the marginal stop or adjusting device and means for locking the spacing mechanism from reciprocating and the keys from being struck. Fig. 5 is a detail of the ribbon mechanism, taken at the motor end of the machine. Fig. 6 is a view of the ribbon-shifting mechanism. Fig. 7 is a section through the spool-shifter, the spool, and spoolshatt. Fig. 8 is a planview of the carriage and roller-platen, showing the means for retaining and detachin g the roller-platen, one of the bearings being shown in horizontal crosssection. Fig. 9 is an end view of the same. Fig. 10 is a view of one of the ribbon-carriers.

In the said drawings A designatesY the topplate of the machine, on the surface of which are formed or secured two studs or supports l, 2, having threaded sockets in them to takeA track, and are arranged parallel to each other on the top-plate of the machine and have their inner edges formed with grooves 9, l0. Byetween these rails 4 and Sis arranged the carriage-bar B, formed with vertical hinge-lugs ll, to'which the carriage is hinged by any suitable means substantially as indicated in the drawings. A

In connection with my improvements I have shown means for removing and replacing the roller-platen. the reason that in manifolding a hard plat-en is desirable to obtain good impressions; and for ordinary writing a sott platen is preferable. Hence if platens can be readily removed and replaced, those adapted especially to the use desired, willbe used interchangeably, and thus better results obtained in manifold work. These bearings can be applied to any type writing machine of the style carrying a rollerplaten.

Referring particularly to Fig. 8 of the drawings, C, designates the carriage-frame having bearings 19, in its end bars to take in the bearing-pins hereinafter described, and D designates the roller-platen, to the respective ends of which are secured end-plates 2O vformed with central bearing-sockets 2l, sub- To each stantially as shown in the drawings. end bar of the carriage is secured a cap 22, formed with a socket 23, andhaving the end provided with a bearing-hole 24, registering '19 and 24, and setting in the socket 2l of the roller platen.v In the bearing-pins is fixed a stud 26, and on each pinis arranged a spring 27, which forces the bearing-pin inward into the socket in the end of the platen. On the Platens are changed forV outer ends of the bearing-pins is a milled head manipulation of the bearing-pins will permitthe replacement of the platen,

IOC

My rst improvement relates to the mechanism for operating the ribbon and shitting or reversing the direction of the longitudinal movement thereof, and this is accomplished by the following described mechanism: At the respective ends of the machine are journaled spool-shafts 29, 30, which so far as the spools are concerned, are duplicates in construction. On the shaft 29 is loosely mounted the spring-motor 31, having connection with the carriage-bar by a strap 32, and controlled by a ratchet as usual. On the spring-motor is carried a spiral 33, in the outer face of which is formed a groove 34, which is engaged by an anti-friction roller 44, on an arm on the spool-shifter. In each of the spool-shafts is cut a half-round groove 35, extending the desired distance. The spools 36, have their hubs fitted to slide on the shafts and in the core or bore of the spools is formed a halt'- round groove 37, and in the registered grooves is arranged a ball 38, which has its bearing in the groove and serves to lessen the friction of the parts when the spools slide back and forth on the shafts. The spool-Shifters consist of a bar 39, having depending arms 40, 4l, loosely embracing or lying against the endfaces of the spools and having the spool-shaft projected through them as shown. The apertures of the arms 40, 4l, are of the diameter of the spool-shaft so that the groove in the bore of the spool is closed at the ends and the ball-bearing thus prevented from being released, or escaping, from the groove during the shitting of the spools. The top bar of the spool-shifter adjacent to the spring-motor has an arm extending therefrom, as at 42, on the end oi. which is journaled an anti-friction roller 44, which engages in the groove 34 of the spiral 33; this connection serving to shift the spools whenrthe motor and the spiral are rotated. The two spools are shifted in unison and simultaneously by means of connection through a rock-shaft journaled on the base of the machine and provided with arms the upper ends of which engage lugs on the spool Shifters, substantially as shown and described in my former patent, No.

To turn the spools and move the ribbon longitndinally I mount under the top plate of the machinea way 45, and in this arrange a slide 4G, to which is loosely hung a pawl 47, which engages the teeth of a ratchet-Wheel 48, fixed on each spool-shaft; and to the inner face of the top plate of the machine, at each end thereof, is fulcrumed a bell-crank lever 49, the short arm of which is jointed tothe end of the slide 46, and the long arm of the lever carries an antifriction roller 50, which bears on the side-face of the frame of the spool-shifter as shown; the contact of the roller being maintained by means of a spring 5l, having one end fastened tothe short arm of the lever and the other end secured to a suitable fastening on the machine plate. These mechanisms for turning the spools at each end of the machine are dupli- Cates and are arranged to operate in drawing the ribbon in reverse directions. To reverse the direction of the longitudinal movement of the ribbon a bail-rod 52, is provided, having the ends hung to the inner ends of the slides 46, and in the middle of the bail-rod is attached a finger-piece 53, to grasp in shifting the bail-rod. By shifting this bail-rod 52 in either direction, the slides carrying the shifting-pawls are correspondingly moved to bring one ot' the pawls in position to engage one of the ratchet-wheels on the spool-shafts and to throw the otherpawl out of engagement. The spools are then rotated a limited distance and the ribbon carried longitudinally by the spool at the end of the machine where the pawl engages its ratchet-wheel; the other spool being free to turn with its shaft with the pawl disengaged. 'I o hold the pawl and slide out of engagement and from operating the spool, a small latch-piece 54, is fixed to the front post of the machine and in this are two notches 55, 55X, which are engaged by a lug, on the end of the bail. By shifting the bail and setting the lug in one of the notches, one of the bellcrank levers and pawls are held out of use. It will be perceived that when the carriageis drawn back and the spools shifted on their shafts, that the lateral movement of the spool against which the operating bell-crank lever engages moves that lever and the lever moves the slide which carries the pawl and that in turn through its engagement with the ratchetwheel on the spool-shaft rotates the spool substantially the width of a type, thus bringing a new surface of the ribbon in service at each movement of the carriage to the right.

To carry the ribbon from Contact with the machine, a small supporting-rod 57, is secured just in advance of the top bar of the spoolshifter and on this support the ribbon-carrier 5S, is sustained, which consists of a flat piece of suitable material to which are secured two thin metal strips 59, GO, bent at substantially right angles to the carrying-plate and adapted to set or rest on and over the rod 57'. The carriers are thus moved always in alignment with the ribbon and are carried laterally with it by the spool-Shifters.

In-Fig. 4 of the drawings is illustrated an adjusting device for fixing the length of the line and means for stopping the progress of the carriage and locking the movement of the keys.

Referring to the drawings, E designates a bar or plate adapted to lie on the rear track rail of the carriage-track and formed with a lateral plate extension 6l, projecting over the carriage-bar as shown in Fig. l of the drawings. In the plate extension 6l, is a longitudinal slot 62, having on it a scale 62X, corresponding with the scales on the front ofthe machine and carriage. The plate E is adjustably and detachably set on the carriage bar by a clamping-screw 63, let into the bar and clamping with its shoulder down on the plate. The right-hand portion of the plate E on the inner edge is straight and sets against IOO the rear face of the right-hand lug on the carriage-bar; and from the other end or left-hand portion of the plate E is extended aa bar 64, the inner edge of which is in line with the inner edge of the right-hand portion, and sets against the rear face of the left-hand hingelug of the carriage-bar, so that by setting the edge of the plate and bar against the hingelugs it properly aligns and is in proper position longitudinally, and on moving the plate lengthwise brings the scale to any desired position in relation to the clamping-screw and the distance traveled by the carriage may be adjusted,limitedand'controlled. Thelimit of movementI of the carriage is effected by means of a lever 65, fulcrum ed on the right-hand end of the plate E, having a flat head 66, whichA runs under the spacing-bracket 67, and prevents that from being moved down, thus locking the spacing mechanism and at the same time locking the keys from striking the types. A spring 68, keeps the lever 65 always in proper position. When the head of the lever 65 runs under the spacing-bracket the carriage is stopped from moving to the left, and then if it is desired to complete a word or strike a hyphen the handle of the lever 65 is pulled inward which releases the head from the spacing bracket and permits the carriage to be moved one space forward to strike the desired character. On the carriage-bar is a stop 69, which lodges against a pin 70, on the front track-rail and stops the carriage in its movement tothe right.

The spacing mechanism is substantially identical with that shown and described in previous patents and the rack-bar 71, is of the usual construction and secured to the carriage-bar to move therewith, being fastened to the hinge-lugs of the carriage-bar, as shown in the drawings..

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

l. The-combination ofy the spool-carrying shaft formed ywith a longitudinal groove, a ribbon-spool mounted on the shaft and formed with a groove in the bore of the spool, a ballbearing in the grooves, and a spool-shifter frame having depending arms at the ends of the spool with the shaft projected through them and closing the ends of the groove in the spool, substantially as and for the purpose specified.

2. The combination with a mechanism for shifting the spools laterally, of a bell-crank lever mounted to bear with one arm against the shifting-frame of the spool, a slide connected to one arm of the bell-crank'lever, a pawl on the slide, a ratchet wheel on the spoolshaft, and a spring to hold one arm of the lever against the shifting frame of the spool, substantially as and for the purpose specified.

3. The combination with the bell-'crank lever, the slides and the pawls, to engage the ratchet-wheels on the spool-shafts, of a shifting-bail having its ends connected to the ends of the slides, and means to hold the bail in a shifted position whereby one of the pawls may be thrown out of engagement with one of the ratchet-wheels and the longitudinal movement of the ribbon reversed.

4. The combination of the carriage-bar, the space-bar mounted on the carriage-banthe spacing mechanism, a plate E, on the carriage-bar formed with a longitudinal slot, a clamping-screw to hold the plate onr the carriage-bar, a lever on the end of they plate E, a pendant on the end of the plate, and the bellmechanism, as and for the purpose described.`

In witness whereof Ithave hereto set my hand in the presence ofl two attesting witnesses.

ELMER S. SHIMER.

Attest:

Jos. ANGsTADT, A. G. HEYLMUN.

Images