US1570348A - Typewriting machine - Google Patents

Description

' Jan. 19 1926.

, J. B. HOLDEN 'rvrawm'rme mourns Filed July 1, 1924 ATTORNEY Patented Jan. 19, 1926.

UNITED STATES PATENT OFFICE.

JOSEPH B. HOLDEN, oFsYnAousn, new YORK, ASSIGNOR To REMINGTON TYIE' WRITER COMPANY, or ILION, new YORK, A conronnrron on NEW YORK.

TYPEWRITING MACHINE.

Application filed July 1,

To all whom it may concern:

Be it known that I, J osnrrr B. HOLDEN, citizen of the United States, and resident of Syracuse, in the county of Onondaga and State of New York, have invented certain new and useful Improvements in Typewriting Machines, of which the following is a specification.

-My invention relates to typewriting or like machines and is directed particularly to the paper feed mechanism of such machines.

The present invention is in the nature of an im rovement on the construction disclosed in my Patent No. 1,376,879 dated May 21, 1921.

The main objects of the present invention are to provide improved means which are simple in construction, inexpensive to manufacture, and effective for preventing a canting movement of the feed rollers into a skewed position without interfering with a rocking movement thereof to equalize the pressure of the feed rollers.

A further object of the invention is to provide adjustable means of the character specified by which a proper positioning and.

alignment of the feed rollers may be effected.

To the above and other ends which will hereinafter appear, my invention consists in the features of construction, arrangements of parts and combinations of devices set forth in the following description and particularly pointed out in the appended claims.

In the accompanying drawings wherein like reference characters indicate corresponding parts in the different views.

.Figure' 1 is afragmentary rear elevation of a carriage equipped with the devices of my invention. v r i Figure 2 is a horizontalsectional view of the same taken on the line 22 of Fig. 1 and looking in the direction of the arrow at said line. p I

Figure 3 is a detail detached perspective view of the device which co-acts with the feed roller carriers to prevent a canting movement thereof to improper position.

Figure 4 is an enlarged fragmentary detail'sectional view of the carriage taken' on the line 4.t of Fig. 2 and looking in the direction of the arrow at said line.

My invention is shown embodied in the present instance in a Remington portable 1924. Serial No. 723,489.

machine, 'in which the invention may be readily included without modifying the structural features of said machine as it now exists. I have illustrated only so much of said machine as is necessary to arrive at an understanding of the present invention. It should be understood, however, that the invention is not restricted to use in such machines but may be used in typewriting or like machines generally.

The body portion 1 of the carriage supports a cylindrical platen 2 in the usual manner. Brackets 3, secured to the body of the carriage, support pivot rods 4 that are received in bearing portions 5 of a feed roller support 6. This pivoted support is preferably formed from a sheet metal plate that extends throughout, or substantially throughout, the length of the carriagein the rear of the platen. Feed roller carriers 7, two being shown in the present instance, are preferably formed of sheet metal as shown, and are provided with bearings 8 for pivot rods 9. Aligned paper feed rollers 10 are mounted on each pivot rod, two such rollers being-mounted on each carrier in the present example. Each carrier is loosely connected at 11 intermediate its ends, and centrally of the feed rollers carried thereby, to the piv oted feed roller support 6. The pivoted support 6 is moved to releasing position by a key 6 in the usual manner, and is provided with integral forwardly projecting arms 12. These arms extend beneath two separated wire springs 13 secured centrally to a block 14 fixed by screws 15 to the body of the carriage. Downward pressure exerted by the springs 13 on the arms12 tends to turn the support 6 on its pivot, so as to cause the carriers '7 to move forward and force the feed rollers against the platen. g

It is desirable to have a loose connection 11 between each carrier and its support in order that the force of the springs 13 will be exerted equally on the feed rollers of each carrier. However, it is highly desirable to prevent an up and down canting of each carrier by a pivotal movement thereof around the axis of its. connection 11. This would result in the associated feed rollers on said carrier being canted into a skewed position where the axis of the rollers would be out of parallelism with the axis of the platen as the parts are viewed in Fig. 1. One of the main objects of the present invention is to improve the means disclosed in my hereinbefore mentioned prior patent for preventing canting movement of the carriers. This is accomplished in the present instance by employing lingers, guides or stops 16 on opposite sides of each connection 11 to co-act with the associated carrier 7 and prevent the above described canting movement thereof.

I prefer to make these guide fingers 16 as integral parts of a sheet metal plate 17 shown detar-hed and in detail in Fig. 3. .It will be observed that there are four of these lingers, tvo extending rearwardly at rightangles to the body of the plate 17 and be neath the lower edge of each carrier 7 at equal distances from the loose Connection which connects it to the support 6. These lingers are preferably bendable to afford an up and down adjustment thereof for purposes whieh will presently appear.

Referring particularly to Fig. 4, it will be seen that the loose connection 11 between each carrier 7 and the support 6 is formed in the present instance by a shouldered rivet, headed at one end over the re-enforcing channel bar 18 on the front of the support 6. Each rivet extends through openings in the bar 18, the support 6, the plate 17 a spacing washer 19, and an enlarged opening 20 in the associated carrier 7. Each rivet has a shouldered portion 21 that bears against the companion washer 19 and firmly unitesthe parts 18, 6, 17 and 19. Each of the openings 22 in the plate 17 through which a rivet passes is larger than the body portion of the rivet received therein, to allow for variations in manufacture and to obtain a proper positioning of the plate 17 on the carrier 6 before the rivets are headed up. The opening 20 in each carrier is larger than the shouldered portion 21 of the rivet received therein, whereas the rear head of each rivet and its associated spacing washer 19 are spaced apart at a greater distance than the thickness of the metal of the companion carrier 7. By these means each carrier is loosely connected by an interlocking connection to its support in such manner as practically to form a universal joint. However, the fingers 1G co-act with each carrier 7 to prevent a canting movement thereof together with its feed rollers into a skewed position as pointed out above. without however, interfering with a fore and aft rocking motion of the parts in order that an equal distribution of pressure may be exerted by the feed rollers on the paper. The rivets also firmly secure the plate 17 to the support (3.

It being understood that the plate 17 is fixed to the carrier 6, it will be seen that an up and down bendingadjustn'ient of the lingers 16 not only is effective to take up any canting play or slack, that there may be of each carrier, but it also enables each carrier to be adjusted to bring the axis of its feed rollers into parallelism to the axis of the platen as the parts are viewed in Fig. 1, and to align the axes of the feed rollers of both carriers and cause the rollers to effect a true feed of the paper.

The construction disclosed herein provides simple, light, compact and inexpensive means for the purposes set forth, and one which may be readily embodied in Remington portable. machines without modifying the present structural features of such machines.

lVhile the specific means shown and described for connecting, mounting and adj usting the parts have been found highly ellicient in prartice, it will be understood that from certain aspects of my invention other suitable means may be employed for such purposes without departing from my invention as it is defined in certain of the accompanying claims.

What I claim as new and desire to. secure by Letters Patent, is

1. In a typewriting or like machine, the combination of a feed roller, a carrier on which the feed roller is mounted, a support on which the carrier is mounted and which is connected to said carrier intermediate the ends thereof, and guide fingers which co-act with said carrier on opposite sides of its point of connection with said support to guide the carrier in its relative movement in one direction but prevent a canting movement thereof into a skewed position.

2. In a typewriting or like machine, the combination of a feed roller, a carrier on which the feed roller is mounted, a support on which said carrier is mounted, a loose connection between said support and carrier intermediate the ends of the latter, and guide fingers which co-act with said carrier on opposite sides of the point of its connection with said support for guiding and prevent ing a canting movement of the carrier into a skewed position without interfering with a relative rocking movement of the carrier to equalize the pressure on the carrier at opposite sides of its connection with the support.

3. In a typewriting or like machine, the combination of a platen, feed rollers that are adapted to bear against said platen, a carrier for the feed rollers, a spring pressed support for said carrier, a loose interlocking connection between said support and carrier intermediate the ends of the latter and centrally of said feed rollers, and adjustable guide fingers which co-act with said carrier on opposite sides of the point of its connection with said support for preventing a cant ing movement of the carrier into a skewed position without interfering with a relative rocking movement of the carrier to equalize the pressure applied from the spring pressed support to the feed rollers on opposite sides of the point of connection between the carrier and support.

a. In a typewriting or like machine, the combination of a platen, a spring-pressed support, a plurality of feed roller carriers each carrying a plurality of aligned feed 5. In a typewriting or like machine, the

combination of a platen, feed rollers that are adapted to bear thereon, a carrier for said feed rollers, a spring-pressed support for said carrier, a loose connection between said support and carrier intermediate the ends of the latter and centrally of the feed rollers carried thereby, and a sheet metal plate fixed to said support and having fingers bendable for adjustment and which c0- act with said carrier on opposite sides of its connection with the support, for preventing a canting of the carrier into skewed position without interfering with a rocking movement thereof to equalize the pressure applied to said feed rollers.

6. In a typewriting or like machine, the combination of a platen, a spring-pressed support, a plurality of feed roller carriers each carrying a plurality of feed rollers, a loose connection between said support and each of said carriers intermediate the ends of the latter and centrally of the feed rollers carried thereby, a sheet-metal plate fixed to said spring pressed support and having fingers bendable for adjustment and which coact with each of said carriers on opposite sides of its connection with the support, for preventing a canting of the associated carrier into skewed position without interfering with a rocking movement thereof to equalize the pressure applied to the feed rollers carried thereby. I

7. In a typewriting or like machine, the combination of a platen, a pivoted spring pressed feed roller support, a plurality of feed roller carriers each carrying a plurality of aligned feed rollers adapted to bear against the platen, a rivet for each carrier and by which a loose connection is effected between said support and the associated carrier intermediate the ends of the latter and centrally of the feed rollers carried thereby, and a sheet metal plate fixedly connected to the support by said rivets and having bendably adjustable fingers which co-act with each of said carriers on opposite sides of the rivet which connects it with said support, for preventing a canting of the associated carrier into skewed position without interfering with a rocking movement thereof to equalize the pressure applied to the feed rollers carried thereby.

Signed at Syracuse in the county of Onondaga and State of New York this 26 day of June A. D. 1924:.

JOSEPH B. HOLDEN,

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