US2150038A

US2150038A - Typewriting machine

Info

Publication number: US2150038A
Application number: US121457A
Authority: US
Inventors: Walter T Sagner
Original assignee: Underwood Elliott Fisher Co
Current assignee: Underwood Elliott Fisher Co
Priority date: 1937-01-21
Filing date: 1937-01-21
Publication date: 1939-03-07
Anticipated expiration: 1956-03-07

Description

March 7, 1939.

w. T. SAGNER TYPEWRITIIIQVG MACHINE Filed Jan. 21, 1957 2 s s t 1- ATTORNEY.

w. T. SAGNER TYPEWRITING MACHINE March' 7, 1939.

Filed Jan. 21, 1937 2 Sheets-Sheet 2 INVENTOR: Wm 24 a W x. 7 1% ATTORNEY.

Patented Mar. 7, 1939 UNITED STATES ATENT OFFIQE TYPEWBITING MACHINE Application January 21, 1937, Serial No. 121,457

14 Claims.

This invention relates to carriage extension supporting means for typewriting machines, and is illustrated in connection with a bookkeeping machine of the Underwood type. Certain features of the invention are applicable to continuous billing machines in general in which printed forms are repeated along each ply of a multipleply Web, to be torn off one by one when typed, the web being usually of the fan-fold type.

The rear frame extension of the usual continuous billing machine for supporting the carriage extension adds considerably to the bulk of the machine, making it of an inconvenient shape to store or ship.

A feature of my invention is the provision of a rearwardly extending support for the carriage extension, pivoted at its lower end to the computing part of the machine, and capable of being folded against the machine to effect a considerable saving of space for packing, shipping or storing.

I have illustrated a bookkeeping machine with a rear carriage extension of a unitary construction, which may be used on a stand or ordinary desk. Due to its size there is considerable risk that the carriage extension may be damaged due to falling or collision. With a cast support there may be breakage. I overcome this by providing a tubular support of light weight having great strength and resiliency to withstand shock, and means are provided for realignment.

Another object is the provision of an adjustable rear carriage support or truss-structure that combines light weight with great strength, while retaining the resiliency desirable in tabulating mechanism.

It has been found that the momentum of the carriage extension or table, in tabulating or carriage-return operations is apt to cause a twisting of the carriage which is sufficient to cause the denominator selector to engage the wrong jack. This occurs even when the tabulating and escapement mechanism function properly and causes incorrect results to be exhibited. It may also cause the ripping or tearing of the carbon paper or the thin tissue of the fan-fold web material.

An object of this invention is to eliminate this objectionable condition by improved rear carriage support construction and the provision. of plates on the rear carriage extension for engaging the rear guide rail of the support.

In the rear carriage support of my invention I provide two rearwardly extending tubular metallic members, pivotally connected to a transverse strap in the lower part of the machine frame, and spaced apart slightly less than the width of the frame. At the upper and rearward ends the two tubular members are riveted to an angle piece extending across the width of the machine, so that the strap, tubular members, and angle piece form a rectangle. This rectangular support is held in proper position by means of two adjustable tie rods rotatably connected to lugs on the ends of the angle piece and to the upper sides of the machine frame so that the tie rods and tubular members form an acute angle. The angle-piece is arranged to carry a guide rail to support the rear carriage, and this guide rail is provided with slotted portions to adjust it so that it may be made horizontally parallel to the carriage guide-rail.

The above design. provides a light and very strong construction to support the weight of the rear carriage. To stiffen and conduce to lateral strength, a diagonal tubular member is welded from the top portion of one tubular member to the bottom, portion of the opposite tubular member, so that the tubular member and the diagonal member form two legs of a shear, whose base is the strap in the machine frame. In order to secure the greatest advantage of this construction, the included angle between the shear legs is made as great as possible, and for added strength and ease of assembly the diagonal member is welded to the opposite tubular member.

A similar diagonal member is welded in the same manner to the opposite tubular member, so that another shear is formed, the two shears having their outer shear legs parallel and their inner shear legs crossing; forming a composite shear. The two crossing legs may be formed so as to pass each other without touching, so that two separate and independent shears are formed having their tops tied together by means of the angle piece holding the rear guide-rail. Due to this double-shear construction, the support is incapable of lateral displacement in either direction.

To align the rear guide-rail with the carriagerail in a vertical plane, adjustment is provided at the lower ends of the shear legs, which are pivotally secured to studs threadably engaged in the transverse strap of the lower machine frame. Rotation of these studs shifts the position of the tubular members and swings the guide-rail in an arc whose center is the pivot of the forward end of the rod. With the rear-rail thus aligned in a vertical plane, it is easily shifted in a horizontal plane by means of the slotted rail portions fastened to the angle piece.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure l is a sectional side elevation of a portion of a bookkeeping machine having the present invention applied thereto.

Figure 2 is a partial side view showing the rear carriage support folded for shipping.

Figure 3 is a view taken along the lines 3-3 of Figure 1, showing the construction of the: rear carriage support and the carriage-swing resisting plates; and

Figure 4 is a plan view of the rear carriage support.

Referring now to- Figure 1, a typewriter I I, having a frame I2, overlies a computer I3, which is controlled by the numeral keys of the typewriter.

The typewriter I I comprises a platen I 4 mounted on a platen-axle I5, which is rotatably supported in a travelling carriage IS. The carriage I6 is supported at its rear by a guide-rail I1 fixed on the typewriter-frame feed mechanism 5| and escapement 52 are provided. The carriage I6 is provided at its ends with brackets 8 extending rearwardly, in which a are mounted a bar I9 and a rod 29, along which the computing section I3 of the machine.

selectors 53 may be moved. Tabulating means with register and denominational selecting means are provided as indicated generally atv 21, and described in detail in the co-pending application No. 72,348, of H. L. Pitman, filed April 2, 1936. The brackets I8 also extend upwardly, and are connected together by a rod 55' on which are i slidably positioned fingers 56 for guiding the web 51 and carbon sheets 58.

At the rear of the machine, provision is made for a carbon-carriage 22, mounted for movement forward and from the platen, upon a rear carriage extension or table 23, comprising a front member 24, secured by screws 49 to brackets I8, arear member 25, and a plurality of connecting members 26, the two outermost ones having on their upper side rails 21, with each one of which co-operate grooved rolls 26 mounted on the baseplate 29 of the carbon-carriage 22. To support and guide the rear carriage extension at its rear end, provision is made of a guide-rail 30, mounted on an angle 3| and extending substantially parallel to the guide-rail IT. The two outermost members 26 have an angle plate 32 attached in a downwardly-extending position, and each plate 32 carries'a roller 33 which rides upon the rail 30 and a hook guide 34'which partially embraces the guide-rail 36. To prevent excessive swinging movement of the carriage, at the conclusion of a tabulating or carriage-return operation, the plates 32 are provided with lateral extensions 35, to lie to the rear of the rail. These extensions are positioned to, engage the rail 3|] when the carriage has been swung only a slight amount, and in co-cperation with the hook guides 34to limit the swinging movement of the carriage and the carriage extension, the plate at one side of the carriage extension and the hook guide 34 at the oppositeside thereof having a tendency to bind the guide rail 39 between them when the carriage is swung.

The angle 3| upon which the guide rail 30 is adjustably mounted by means of screws 36, is secured to tubular supports 31 by meansof rivets 59. These supports extend downwardly and forwardly, and are pivotally connected by screws 38 to studs 39, adjustably mounted to a strap 40', in

The tubular supports 31 are joined together The usual letterand braced by means of tubular connectors 4| inv the form of shears. At the crossover point, the connectors are formed so as to pass each other without touching. This construction has been found to impart the proper degree of resiliency to deaden and absorb the shock occasioned by the sudden stopping of the rear carriage extension, and still have the necessary strength to prevent distortion.

The angle 3| has forward extending lugs 42 at each end, to which tie-rods 43 are connected by means of a screw 44. The forward ends of the tie-rods 43-are secured to the frame I2 of the typewriter I I by'means of screws 45 and studs 50, and provision is made to adjust their lengths by means of a threaded portion 46 and lock-nut 41.

The tie-rods 43 are so positioned as to afford easy access to the tabulator section 2| for the purpose of setting the stops.

To adjust the rear-guide rail 30 so that it is parallel with the carriage-guide rail I'I; screws 38 are removed and studs 39 rotated until the rear-guide rail 30 is parallel with the carriageguide rail I 'I, in a vertical plane. To adjust in a horizontal plane, screws 36 are-loosened, while in extreme cases, screws 45 are removed and-tierods 43 rotated to a proper length.

To aid in letter-feeding, it is desirable that the guide-rails slope somewhat to the left-handside of the machine. To accomplishthis, washers 48 are inserted betweenthe foot and the base of the computing machine on the right-hand side.

Figure 2 shows a machine: packed for shipment in a box 54. Screws 49 are removed and the table 23 is removed from rear-guide rail 30. Screws 45 are then removed from studs 50, and the supports 31 and tie-rods 43 maybe folded-up close tothe machine.

Variations may be resorted'to' within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention; I claim:

1. In a typewriting machine having abaseand provided with a paper carriage having a. rearward extension, the combination of a rear track upon which said extension runs, and a support for said track, including two rearwardly and upwardly extending tubular members, a transverse strap to which said members are connected'at their lower 7 ends, said strap being secured to said'base, said tubular members at their upper ends being fastened to a transverse tie-plate, and brace-members extending from each tubular member foranchorage adjacent said tie-plate, said tie-plate, strip and tubular members forming a rigid unitary frame. r

2; In a typewriting machinehaving a base and provided with a paper carriage having a rear-- ward extension, the combination of a rear track upon. which said extension runs, a support for said track, including two rearwardly and upwardly extending tubular members, a transverse strap to which said members are connected at their lower ends, said strap being secured to said base, said tubular members at their upper ends being fastened to a transverse tie-plate; said'tieplate, strap and tubular members forming a rigid broad frame, and two adjustable tie-rods connected at their rear ends to said tie-plate, and at their forward ends to the upper portion of the typewriter framing; said rail being mounted upon said tie-plate.

3. In a typewriting machine havinga base an provided with a paper carriage havinga rearwardextension, the combination of a rear track upon which said extension runs, a support for said track, including two rearwardly and upwardly extending tubular members, a transverse strap to which said members are connected at their lower ends, said strap being secured to said base, said tubular members at their upper ends being fastened to a transverse tie-plate, said tie-plate, strap and tubular members forming a rigid broad frame, and two adjustable tie-rods connected at their rear ends to said tie-plate, and at their forward ends to the upper portion of the typewriter framing; said rail being mounted upon said tieplate, and said guide-rail provided with means whereby it may be adjusted horizontally into parallelism with the main guide-rail of said carriage.

4. In a typewriting machine having a carriage and a rearwardly extending frame, the combination with a rear rail upon which said extension runs, of a support for said rail secured at its lower end at the base of the typewriting machine and extending upwardly and rearwardly, and including a shear structure having members converging from said base to said rail member, to support the same.

5. In a typewriting machine having a carriage and a rearwardly extending frame, the combination with a rear rail upon which said extension runs, of a support for said rail secured at its lower end at the base of the typewriting machine and extending upwardly and rearwardly, and including a pair of shear supports each having an apex, the apex of one shear supporting said rail at one end, and the apex of the other shear supporting said rail at the other end, and means extending forwardly from said apexes to connect them with the machine framing.

6. In a typewriting machine having a carriage and a rearwardly extending frame, the combination with a rear rail upon which said extension runs, of a support for said rail secured at its lower end at the base of the typewriting machine and extending upwardly and rearwardly, and including a shear structure having members converging from said base to said rail member, to support the same, said shear structure at its lower end being adjustable relatively to the base of the typewriter.

7. In a typewriting machine having a carriage and a rearwardly extending frame, the combination with a rear rail upon which said extension runs, of a support for said rail secured at its lower end at the base of the typewriting machine and extending upwardly and rearwardly, and including a pair of shear supports each having an apex, the apex of one shear supporting said rail at one end, and the apex of the other shear supporting said rail at the other end, and means extending forwardly from said apexes to connect them with the machine framing, each of said shears including a diagonal member welded to the co-operative tubular member at the apex of the shear.

8. In a typewriting machine having a carriage and a rearwardly extending frame, the combination with a rear rail upon which said extension runs, of a support for said rail secured at its lower end at the base of the typewriting machine and extending upwardly and rearwardly, and including a pair of shear supports each having an apex, the apex of one shear supporting said rail at one end, and the apex of the other shear supporting said rail at the other end, and means extending forwardly from said apexes to connect them with the machine framing, the two shears having their outer shear legs parallel, and their inner shear legs crossing, to form a composite shear.

9. In a typewriting machine having a carriage and a rearwardly extending frame, the combination with a rear rail upon which said extension runs, of a support for said rail secured at its lower end at the base of the typewriting machine and extending upwardly and rearwardly, and including a pair of shear supports each having an apex, the apex of one shear supporting said rail at one end, and the apex of the other shear supporting said rail at the other end, and means extending forwardly from said apexes to connect them with the machine framing, the two shears having their outer shear legs parallel, and their inner shear legs crossing, to form a composite shear, said crossing shear legs being without contact, and the tops of the shears being tied together.

10. In a typewriting machine having a carriage and a rearwardly extending frame, the combination with a rear rail upon which said extension runs, of a support for said rail secured at its lower end at the base of the typewriting machine and extending upwardly and rearwardly, and including a pair of shear supports each having an apex, the apex of one shear supporting said rail at one end, and the apex of the other shear supporting said rail at the other end, and means extending forwardly from said apexes to connect them with the machine framing, the two shears having their outer shear legs parallel, and their inner shear legs crossing, to form a composite shear, said crossing shear legs being without contact, and the tops of the shears being tied together by means of the angle piece which holds the rear guide-rail of the carriage extension, the composite shear support being incapable of lateral displacement in either direction.

11. In a typewriting machine having a carriage and a rearwardly extending frame, the combination with a rear rail upon which said extension runs, of a support for said rail secured at its lower end at the base of the typewriting machine and extending upwardly and rearwardly, and including a pair of shear supports each having an apex, the apex of one shear supporting said rail at one end, and the apex of the other shear supporting said rail at the other end, and means extending forwardly from said. apexes to connect them with the machine framing, the lower ends of the shear legs being pivotally secured to studs which are threaded into a transverse strap on the base of the typewriter.

12. In a typewriting machine having a carriage and a rearwardly extending frame, the combination with a rear rail upon which said extension runs, of a support for said rail secured at its lower end at the base of the typewriting machine and extending upwardly and rearwardly, and including a pair of shear supports each having an apex, the apex of one shear supporting said rail at one end, and the apex of the other shear supporting said rail at the other end, and means extending forwardly from said apexes to a pivotal connection with the machine framing, the lower ends of the shear legs being pivotally secured to studs which are threaded into a transverse strap on the base of the typewriter, rotation of the studs being efiective to shift the position of the shear supports, and swing the guide-rail in an arc whose center is the pivot of the forward end of said forwardly extending means, said rear rail being thereby aligned to a vertical position, and being shiftable in a horizontal plane by means of slotted connections to said apexes.

13. In a machine of the character indicated, having a traveling carriage, in combination, a table extending from said carriage, a rail upon which said table travels, and having a support on the machine, said rail support comp-rising a frame including spaced side members affixed to said rail and flexibly joined to the machine, diagonal members fixed to opposed ends of said side members and clearing each other at their intersections to afford flexibility in the plane of said frame; and adjustable rods extending between said machine and the rail attachment ends of said side members, whereby to permit alignment of readily adjustable for effecting adjustment of the relative locations of said pivotal joints, whereby to adjust said track.

WALTER T. SAGNER.