US1506287A - Typewriting machine - Google Patents

Description

Aug. 26,1924; 1,506,287

I H. E. BRIDGWATER TYPEWRIT ING MACHINE Filed Feb. 16 1924 myguwn ATTORNEY MEI WITNESSES Patented Aug. 26, 1924- UNETEE) YATES EPA TENT GP'F-ICE.

HERBERT E. BEIDGVJATER, OF SYRACUSE, NEVJ YORK, ASSIGNOR TO REMINGTON .TYPEWRITEE COMPANY, OF ILION, YORK. A CORPORATION OF NEW YORK.

TYPEWRITTNG MACHINE.

Application filed February 16, 1924. Serial No. 693,252.

M invention relates to t ewritin ma chines, and has for its object to provide new and improved supporting means or bearings for a rod or bar in such machines, and particularly for a paper finger rod.

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

In the accompanying drawings which illustrate the preferred form of my invention,

Figure 1 is a fragmentary front elevation showing the platen carriage and paper finger rod of a No.60 Smith Premier typewriting machine embodying my invention.

Figure 2 is a fragmentary rear elevation of the right-hand end portion of the paper finger rod and its hearing or support.

Figure 8 is an enlarged sectional View taken on a plane represented by the section line 1-1 in Figure 1 and looking in the direction of the arrow at said line.

Figure d is a fragmentary end elevation of the right-hand bearing or support of the paper finger rod.

Figure 5 is an enlarged perspective view of a part hereinafter termed a washer member.

Figure 6 is a fragmentary perspective view showing an end portion of the paper linger rod.

Figure 7 is av fragmentary sectional view somewhat distorted for the purpose of bringing out more cleanly the function of the main feature of the invention.

The carriage or carriage frame of the No. ,60 Smith Premier typewriting machine comprises, as illustrated in Figure 1, a rear bar 1 from the end portions of which extend. forward in substantial parallelism end bars or socalled bosses 2. At their'tops the end bars 2 are provided with enlargements or lugs 3, the inner faces at whereof are machined or planed. The end bars 2 are illustrated. Co-operat-ive with the front face of the plat-en are one or more paper finger contrivances 6 which are adjustably or slidably supported on a rod or bar 7 arranged above and parallel with the platen, said rod or bar extending between the lugs 3 from which it is supported.

Heretofore, the paper finger rod has usually been directly secured by clamping or binding screws to the end bars of the carriage, and this has frequently resulted in the bowing or flexing of the rod owing to inequalities in construction and inaccuracies inevitable in manufacturing. The primary cause of the bowing has been due to the fact that in machining the inner facesl of the supporting lugs 3, it has not been possible always to maintain them at rightangles to the line taken by the axis of the rod when it is arranged in place. Moreover, the rods are not always exactly of the same lengths, nor is the distance between the faces 4- of the lugs always the same. The main object of my present invention is to obviate or provide against defects arising in the manner stated, and to this ,end I provide self-adjusting bearing members for co-operation with the end portions of the paper finger rod, and also provide for at will varying within limits the distance between the inner faces of the supports. In carrying out my invention in the present instance I provide an adjustable bearing piece or device for the right-hand end portion of the rod, said device being in the form of a bushing 8 that is threaded on its outer face and is provided with a hexagonal head or flange 9 to facilitate adjustments. The bushing is threaded into a tappedhole in the righthand lug 3, and the. inner face 10 of said bushing provides an adjustable face opposite to the fixed corresponding face l of the lefthand lug. The rod 7 is supported on headed screws 11 and 12,. the screw 11 passing through a hole in the bushing 8 and engaging in a topped opening 13 in the right-hand end portion of the rod, while the screw 12 passes inward through the left-hand lug 3 and engages in a tapped opening 14 in the lefthand end of the rod. (damped between the left-hand lug 3 and the head of the screw 12 is a shouldered collar 12 which comprises a support and bearing for a link 12 that is included. in the usual feed roll release mechanism of the machine. The head. of the right-hand screw 11 engages with the outer face of the hearing or bushing 8. Interposed between the ends of the rod 7 and its bearings are washer members 15. Each of the. pair of washer members or parts has a plain or flat outer face 16, the opposite inner face 17 being convex or ball-shaped and interseating with and matching a concave or cup-like socket or depression 18 in the inner face of the part or rod 7. The washers 15 are formed with holes or openings 19 through which the shanks of the respective securing means or screws 11 and 12 pass. The holes 19 are slightly greater in diameter than the shanks of the screws so as to afford some play or movement of the washers transversely of the screw axes. The righthand washer is housed in a depression or counter-sink 20 in the lug 3, the plane face of the washer engaging with the inner plane face 10 of the bushing 8. As most clearly shown in Figure 3, the rim 21 formed in the lug 3 by the depression 20 is provided with notches or grooves 22 diametrically opposite each other, the rear notch co-perating witha tongue or spline 23 projecting from the rod 7 at its rear side. groove connection between the rod and the carriage frame prevents the rod from rotating on its axis, thus providing a stable support for the paper fingers 6.

It will be understood that by turning the bushing 8 in or out, as may conveniently be done by a tool applied to its hexagonal head 9, the plane face 10 may be moved closer to or further from the corresponding opposite face 4t of the left-hand lug 3, this relative adjustment of the two faces taking care of any manufacturing inequality in spacing between the connected end bars and their lugs 3, and also of any inequality in the length of the paper finger rod itself. Furthermore, when the screws 11 and 12 are tightened, thus subjecting the rod to endwise pressure and binding or clamping it in place, the rod, the ball-faced washers 15 and the carriage frame will all be clamped together, the plane faces 16 of the washers will locate themselves flat against the associate flat or plane faces 4 and 10 of the supports, while the ball faces 17 and the socketed or concaved ends of the rod 7 willinterseat automatically, allowing the rod to ride on the faces 17 of the washers, without any bending or buckling effect. This co-action of the parts will be clearly apparent from 7 ,in whichthe inner face i of the left-hand lug 3 is shown faced off for purposes of illustration at an exaggerated angle. Nevertheless, it will be seenthat the plane face of the This tongue and washer will seat flatly against the face 4, the effect being to turn the washer to some extent relatively to the axis of the screw 12 without however preventing the rounded or ball-end of the washer from interseating properly as before with the concaved end or circular depression in the end of the paper finger rod. The rod is thus provided with self-adjusting end-bearings.

My improvements may be applied to'ex isting machines with slight and inexpensive changes yet with the result that prior defects of the replaced construction. are entirely eliminated. It is further to be understood that while my invention was more particularly designed for use in connection with a paper finger rod or bar, and has been specifically described in its application to such rods or bars, nevertheless the principle of the invention may be made use of in other parts of typewriting machines and in other relations, as well.

What I claim as-new and desire to secure by Letters Patent is 1. In a typewriting machine, the combination of two supports spaced apart, a rod or bar extending between said supports, screws on said supports and threaded into the ends of said rod or bar, and a member separate from said rod and interposed between one of its ends and the adjacent support, one of said screws being effective to cause said member to interseat in self-adjusting fixed relationship with the end of the rod.

2. In a typewriting machine, the combination of two supports spaced apart, a rod or bar extending between said supports, screws on said supports and threaded into the ends of said rodv or bar, and separate members interposed between the end of said rod or bar and said supports, said screws passing through said members and said members interseating with said rod or bar.

3. In a typewriting machine, the combina tion of two supports spaced apart, a rod or bar extending between said supports, screws on said supports and threaded'into the ends of said rod or bar, and members interposed between the ends of said rod or bar and. said supports, said screws passing freely through said members and said members being adapted to be clamped by said screws in self adjusting relationship with the ends of said rod or bar.

4. In a typewriting machine, the combination of two connected supports spaced apart, an adjustable bearing piece on one support, a rod or bar extending between said supports, screws on said supports and threaded into the ends of said rod or bar, one screw passing through said bearing piece and 'washer members arranged atthe ends of said rod or bar and interseating therewith.-

5. In a typewriting machine, the combina- 131011 of-two supports spaced apart and. having a fixed relationship, a flanged device adjustably threaded into one support, a rod or bar extending between said supports, screws on said supports and threaded into the ends of said rod or bar, one screw passing through said device, and members interposed between the ends-of said rod or bar and one of said supports at one end and said device at the other end of said rod, said screws passing freely through said members and said members being adapted to be clamped by said screws in self-adjusting relationship with the ends of said rod or bar.

6. In a typewriting machine, the combination of two supports spaced apart and having a fixed relationship, an adjustable bearing device on one of said supports, a rod or bar extending between said supports, clamping screws threaded into the ends of said rod or bar, and washers on said screws and having rounded faces interseating in cup-like depressions in the ends of said rod or bar.

7. In a typewriting machine, the combination of a carriage frame comprising end bars, a paper finger rod extending between said end bars, screws carried by said end bars and threaded into the ends of said rod or bar, and washers interposed between the ends of said rod or bar and the end bars of the carriage, the inner faces of said washers being rounded and engaging in corresponding rounded depressions in the ends of said rod or bar.

8. In a typewriting machine, the combination of a carriage frame comprising end bars, an adjustable support on one of said end bars, a paper finger rod extending between said end bars, screws threaded into said rod or bar, one of said screws passing through one of the end bars and the other passing through said adjustable support, and a pair of washers having rounded faces interseating in corresponding depressions in the ends of said rod or bar, said screws passing freely through said washers.

9. In a typewriting machine, the combination of a carriage frame comprising end bars, an adjustable support on one of said end bars. a paper finger rod extending between said end bars, screws threaded into said rod, one of said screws passing through one of the end bars and the other passing through said adjustable support, and a pair of ball-faced washers interseating in corresponding seats or sockets in the ends of said rod, said screws passing freely through said washers, one of said screws clamping its associate washer between the rod and the contiguous end bar, and the other of said screws clamping its associate washer between the rod and the inner face of said adjustable support.

10. In a typewriting machine, the combination of a carriage frame comprising end bars, a platen thereon, a paper finger rod,

a paper finger slidably mounted on said rod co-operative with said platen, screws on the carriage frame and threaded into said rod, a pair of washers having rounded faces interseating in corresponding'depressions in the ends of said rod, said screws passing freely through said washers, and a tongue and groove connection between said rod and said carriage frame for preventing rotary movements of said rod.

11. In a typewriting machine, the combination of a carriage having opposing plane faces, a rod or bar extending between said faces and having rounded depressions or sockets in its ends, washers interposed between the ends of the rod and said faces, each washer having a plane face and an opposite ball face, and screws for securing the rod or bar in place.

12. In a typewriting machine, the combination of a carriage having opposing plane faces, a rod extending between said faces and having rounded depressions in its ends, washers interposed between the ends of the rod and said faces, each washer having a plane face and an opposite rounded face, and screws for securing the rod in place, said screws passing freely through holes in said washers and operating when tightened to cause self-adjustment of said washers relatively to said rod.

13. In a typewriting machine, the combination of a carriage, a paper finger rod, securing means, and self-adjusting end bearings for said rod.

14. In a typewriting machine, the combination of two supports fixedly spaced apart, an adjustable bearing for varying the distance between said supports, and a rod mounted between said supports and subject to endwise pressure through the medium of said adjustable bearing.

15. In a typewriting machine, the com bination of two supports, a rod, and an end bearing for said rod comprising on one of said rod-and-bearing parts a convex face and on the other of said parts a concave face matching said convex face.

16. In a typewriting machine, the combination of two supports, a rod, and bearings at the ends of said rod, each bearing comprising a part having a convex face and a co-operating part having a concave face matching said convex face.

17. In a typewriting machine, the com: bination of two supports, a rod, an end bearing for said rod comprising on one of said rod-and-bearing parts a convex face and on the other of said parts a concave face matching said convex face, and means for securing said matching faces in fixed relationship.

18. In a typewriting machine, the combination of two supports, a rod and bearings at the ends of said rod, each bearing comprising a part having a convex face and a Onondaga and State of New York this 12th (ac-operating part having a concave face day of February, A. D. 1924.

matching said convex face, and. means at each end of said rod for securing it in place HERBERT BRIDGVVATEB and maintaining said. concave and convex \Vitnesses:

matchinv faces in fixed. relationship. J. B. HOLDEN, S gnec at- Syracuse 1n the county of WALTER BARR.

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