US1003580A - Type-writing machine. - Google Patents

Description

W. J. BARRON.

` TYPE WRITING MACHINE. APPLICATION FILED AUG. 1o, 1910.

1,003,580., Patented Sept. 19, 1911.

WITNESEEE. Ilm/ENTER.

- @Y #MM y UNITED STATES PATENT OFFICE.y

WALTER J. BARRON, OF NEW YORK, N. Y., ASSIGNOB TO REMINGTON TYPEWRITER COMPANY, OF ILION, NEW YORK, A CORPORATION 0F NEW YORK.

'rinus-warn:inof MACHINE.

` Specification of Letters Patent.

Patented Sept. 19, 1911.

To all whom 'it may concern:

Be vit known that I, WALTER J. BARRON, a citizen of the United States, and resident of the borough of Brooklyn, city of New York, in the county of Kings and State of New York, have invented certain newy and useful Improvements in Type-Vriting Machines, of which the following is a speciiication.

My invention relates especially to bearings for the carriages of typewriting machines and its object is to provide improved governing or controlling devices for the anti-friction rollers of carriage bearings.

More specifically the object of my invention is to provide for controlling the roller carrier orseparator from the margin regulating devices so as to prevent objectionable creeping or disarrangement between the carriage and its l'bearings due to jarring, in-

Y hand margin stop and the co-actingframe ertia of the roller carrier, or other causes.

To the above and other ends my invention consists in the features of construction, combinations of devices and arrangements of parts to be hereinafter described and particularly pointed out in the claims.

One form of my invention is illustrated in the accompanying drawings, wherein- Figure l is a fragmentary vertical frontto-rear sectional view of the upper part of a No. 10 Remington typewriting machine embodying my `invention, only so much of the machine being shown as is necessary to ak clear understanding of said invention. Fig. 2 is a fragmentary front elevation of the carriage and the front stationary bear` ing rail. Fig. 3 is a fragmentary front View showing the roller carrier, the leftsto Y li/iy invention is shown as applied to a No. 10 Remington typewriter but the nature of the invention is such that it may readily be adapted to other styles of writing machines.

The main frame of the machine comprises posts 1 which support a top plate 2 from which rise lugs or projections 3 and 4 supporting vrespectively front and rear fixed tracks or rails 5 and 6. Said rails are provided at their inner faces with oppo;

sitely disposed V-groovesy 7 which face corand rear .rails 9 and 10 of a traveling carriage, which carriage further comprises end bars 11 and provides a supportfor a roller platen 12.- Each pair of grooves 7 and 8 form an opening which is substantially rectangular in cross section and said'opening lreceives two pairs of anti-friction rollers 13 and 14, said rollers being in the present instance pivoted rolls or wheels, althoughof course other forms ofrollers may be employed. `The pivots 15 and 16 of each pair of rollers are substantially at right angles to each other and takebearings in a support formed preferably of sheet metal and comprising pairs of parallel oppositely bent arms 17 and 18, the planes of said pairs of arms being substantially at right angles to each other. support embrace one end of apair of parl allel strips or bars 19 and are secured thereto by rivets 20. 4From Fig. 2 it will be seen that a pair of crossed anti-friction rollers 13 and 14 are secured at each end of the front pair of bars 19, thepair of bars 19 and the two roller supports at each end thereof constituting a roller holder or separator for maintaining the set of four rollers in iiXed relationship to each other.

The separator and roller bearings above described are those at the front of the carriage, but it will be understood that the roller bearings at the rear may be similarly arranged and supported..

The forward arm 17 of the front' lefthand roller support is extended rightward as indicated at 17 a and terminates in an up- The longer arms 11 of' eachstanding projection or finger 17b which, as

margin stop is or may be of the construction Al-tion 21 of the left-hand margin stop. This shown in the patent to Berry No. 956,672 granted May 3, 1910. lIt comprises a platelike body 22 from ,which the stop proper 21 projects forward at right angles. The plate 22 has at its rear van upward extension or lip 23l and is formed on 1ts rear face with a tooth which is maintained in spring-pressed engagement with rack teeth24 cut a letterspace distance apart in the front face of Ia rack bar 25 which is arranged on top, of the carriage rail 9, and extends longitudinally thereof. Overlying the rack bar is a cover' 'plate 26 which has a forwardly inclined face provided with a scale 27 and is pro-- vided. with a downwardly extending .lip 28 whichcoperates with the lip 23 to prevent accidental displacement of the margin stop. rIlhe rack bar 25 and the cover plate 2 6 are secured to the rail 9 by upwardly extending screws 29.

Fixed to the plate-like body 2,2 ofthe margin stop inIfront of the cover bar or plate is a plate 30 which is'provided with a linger piece 31 and a pointer 32, said pointer cooperating with the scale 27. The constructionis such that when the finger piece 31 is pressed in, the margin stop is released v adjustment.

from the rack teeth 24 and may be slipped along lengthwise of the carriage and ad-- justed in `any desired position, the scale 27 and coperating pointer facilitating such land is'adapted to coact with the'right-hand roller 13. f

As is well understood, the carriage during its excursions to the left and right across the top plate travels twice as fast as the rollers in the roller carrier. Unless the roller carrer is positively connected with the carriage bya rack and pinion connection or in some other way, the roller carrier is likely to become displaced with respect to the car,- riage, or creep as it is called, and though the displacement during a single excursion of thel carriage is insignificant, yet the cumulative eifect of a number of excursions may be considerable so that in the end after a series of backv and forth movements or excursions of the carriage it may be necessary to apply considerable power thereto in order t drag the roller carrier bodily back to the roper position with respect tothe carriage. y present invention provides for prevent- It will be seen from Fig.' 1y that the path of movement of the projection ing this objectionable displacement, and this without the use of elaborate connections between the roller carrier and the carriage,

'such connect-ions being dispensed with and the margin stop) or the traveling stop on the carriage coperating with the roller carrier to maintain it in proper relationship with said carriage.

Let it be assumed that the left-hand margin stop isadjusted lengthwise of the carriage. to the position shown in Fig. 2 and that when the carriage is in position for beginning a new line with the margin stop 21 in contact with the frame stop 33, then the vertical face or projection 17" is 1n the fore and aft plane containing the line of contact between 21 and 33. Further, let it be assumed that the carriage has been fed or advanced leftward to the position shown in Fig. 2. The -roller carrier travels atv half the rate of the carriage and should be in the position shown iny said Fig. 2. If, now, the carriage be returned toward the right, it will be apparent that if the roller carrier or separator has become displaced toward the left with'respect to the carriage during the left-ward movement thereof, the stop 21 which travels twice as fast as the roller carrer will overtake the projection 17" before said stop reaches the stop 33 and is arrested thereby and that said stop 21 will pick up the roller carrier and move it rightward a distance corresponding to the` amount of they leftward creeping or displacement. The result will be that when the carriage is arrested `by the engagement of the stop y21 with the `frame stop 33 the roller carrier will be in proper position with respect tothe carriage before beginning the new line of writing, as shown in Fig. 3. Since the amount of .displacement of the roller 'carrier with respect to the carriage during any single leftward movement of said carrier can be but comparatively slight, it will be apparent that the corrective action of the margin stop 21, acting through the projection 17", will also be slight and will scarcely be felt by the operator, not requiring any appreciable excess of power to be applied in returning the carriage over the usual amount of power so applied.

The pin 38 constitutes a stop which is adapted to coperate with the right-hand roller 13 to prevent creeping or displacement of the roller carrier toward the righthand.

I Aam aware that it is not new, broadly herein, for limiting themouse struction no matterhpwthe point of arrest f of the carriage may varied, the roller carrier or roller .if vdisplaced improperly is adapted" to be `picked up or connected to the carriage just prior to the arrest ofthe latter.

Various changes may be made without departing from my invention. l v What Iclaim as new and desire tr secure ro ler, said roller being .disconnected from' said carriage durin movements of the same in one direction, an means adapted to cause engagement of `said roller with said carriage during vmovement of said carriage in the opposite direction, said means also assisting independently of saidroller to positively limit the extent of movement of the car-- riage. v

2. In a typewriting machine,v the combina- 'tion of a traveling carriage, devicesA for variably arresting said carriage on its return to begin a vnew line of writing, devices providing bearings for said carriageI including a roller, a roller carrier, and means adapted to cause engagement of said carrier with said carriage during the movement ofsaid carriage and just prior to thearrest of said carriage, said carrier at other times during the movement of said carriage being disconnected from said carriage, said means being variable to correspond in the variation of the setting of said devices.

3. In a typewritin machine, the combina tion of a carriage, evices for variably arresting the same during its travel in one direction, a roller carrier, and a device on said carriage for causing engagement of the same with said roller carrier at a point immediately in advance of thatpoint at which the arrestl of said carriage takes place during its movement in one direction, the relationship between said points being always the same whatever be the point at which the arrest of the carriage takes place, said device being separated Jfrom said carrier during movements of the carriage in the opposite direction.

4. In a typewriting machine, the combination of a traveling carriage, margin stops, a roller carrier, and means connected to one of said margin stops to pick up said roller carrier during the travel ofthe carriage.

5. In a typewriting machine, the combination of a traveling carriage, margin stops, a roller carrier, and means connected to one of said margin stops to pick up said roller carrier during the travel of the carriage,l

the point at which the roller carrier is picked up being unvarying with respect to the point at which the carriage is positively arrested by the engagement of said margin stops.

6. In a typewriting machine, the combination' of a traveling carriage, a carriage stop thereon, a roller carrier, and a 'device connected to said carriage stop for controlling said carrier. v

7. In a typewriting machine, the combination of a traveling carriage, a stop carried thereby and lldjustable lengthwise of said carria e, and a Aroller carrier controllable bysai adjustable stop.`

8. In a typewriting machine, the combina- Ytion of a traveling carriage, amar sto thereon, a frame stop co-active with sai margin stop, and a roller carried controllable by said margin stop.

9. In a typewriting machine, the combination ofa traveling carriage, a margin stop mounted on said carriage and adjustable lengthwise thereof, a frame stop co-active with said margin stop, and a roller carrier having la projectionin the path of movement of said margin stop.

. 10. yIn a typewriting machine, the combination of l a traveling carria e, rollers, a

roller carrier, a device on sai carriageengageable with and assisting to control said carrier, and a fixed device also assisting to control said carrier, said, devices being adapted to co-act independently of said roller carrier to control said carriage.

11. In a typewritingmachine, the combination o a traveling carriage, a plurality of vroller bearings, a separator for controlling said roller bearings, and a margin stop on the carriage co-active with said separator during movements of the carriage.

12. In a typewriting machine, the combination of a traveling carriage, a plurality of roller bearings, a separator on which said rollerbearings are mounted, a projection on said separator, and a margin stop on the carriage adapted to co-act with said projection durin movements of the carriage.

13. n a typewriting mac" '.ne, the combination of a traveling carriage comprising oppositely grooved rails, xed grooved rails on the machine frame, rollers coperating with the grooves in the carriage rails and in. the fixed rails, a separator or carrier supporting' certain of said rollers, a traveling stop, a frame stop cooperative therewith to arrest the carriage, and a device on said carrier or separator in the path of said traveling stop.

14. In a typewriting machine, the combination of a traveling carriage comprising oppositely grooved rails, fixed grooved rails on the machine frame,rollers cooperating with the grooves in the carriage rails and in the fixed rails, a separator or carrier supporting certain of said rollers, a margin stop adjustable on said carriage, a framek stop coactive therewith, and a projection on Isaid separator in the path of said margin stop.

15. In a typewriting machine, the comioo bination of a traveling carriage comprising oppositely grooved rails, xed grooved rails on the machine frame, rollers coperating with the groovesin the carriage rails and in the fixed rails, a separator or carrier supporting certain of said rollers7V a travelin stop, a frame stop operatlve therewit ,y a device on said carrier or separator in the path kof said travelingstop,

10 and a fixed stop operative to limit the move'- ment of said separator and the rollers mounted thereonin one direction.

Signed at Hingham in the county of P1ym. outh and State of' Massachusetts, this 8th- Witnesses:

0mm Y. WHITE, HOWARD P. Hmm.

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