US2023508A - Typewriting and like machine - Google Patents

Description

Data 1% 1%35. R NN 2,023,598

TYPEWRITING AND LIKE MACHINE Filed Feb. 9; 1935 INVENTOR ATTORNEY Patented Dec. 10, 1935 PATENT OFFICE TYPEWRITING AND LIKE MACHINE Russell E. Benner, Buffalo, N. Y., assignor to Remington Rand Inc, Buffalo, N. Y., a corporation of Delaware Application February 9, 1935, Serial No. 5,747

15 Claims.

My invention relates to typewriting and like machines and more particularly to tabulator mechanism. More specifically stated the invention relates to column stop bars and stops for use therewith.

The main object of my invention is to provide simple and inexpensive, yet highly eflicient devices of the character specified which may be readily incorporated in existing typewriting machines, and may be combined with existing tabulator mechanism, without modifying, or materially modifying the existing structural features of such machines.

It is another object of my invention to provide an improved column stop bar or tabulator stop rack which will be possessed of greater strength and rigidity than column stop bars heretofore used.

A further object of my invention is to so construct my improved column stop bar that all the elements thereof will cooperate to produce greater strength in said bar.

Still another object of my invention is to provide an improved stop which may be eifectively held in either its projected or retracted positions, and which may be readily inserted into said bar and moved easily from one of said positions to the other.

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 drawing, wherein all of the views are on an enlarged scale and like reference characters designate corresponding parts in the different views,

Fig. 1 is a fragmentary, vertical fore and aft sectional view through the upper rear portion of a typewriting machine in which my invention has been embodied;

Fig. 2 is a longitudinal vertical sectional view through the column'stop bar and taken along the line 22 of Fig. 1 and looking in the direction of the arrows at said line, the view showing the manner of attaching the column stop bar to the carriage;

Fig. 3 is a fragmentary, horizontal sectional view taken along the line 3-3 of Fig. 2 and looking in the direction of the arrows at said line;

Fig. 4 is a fore and aft, vertical sectional View through the colurnn stop bar taken along the line d@ of Fig. 2 and looking in the direction of the arrow at-said line, the view showing one stop in extended or projected position and another stop in retracted position; and

Fig. 5 is a detail perspective view of a portion of the column stop bar having the cover and stops 5 removed therefrom and showing the formation of the various slots or grooves in the body member.

My invention is shown, in the present instance, embodied in a No. Remington Noiseless machine in which the invention may be readily in- 10 corporated without modifying, or materially modifying, the existing structural features of said machine. Only a sufficient number of parts of said machine have been shown to illustrate the invention in its embodiment therein. It should be understood, however, that the invention is not restricted to embodiment in the machine referred to but may be applied to typewriting and like machines generally, wherever found available.

The carriage, which is designated as a whole by the reference numeral 10, may be of the usual construction having a platen l I journalled in right and left-hand end plates l2 and I3 respectively. On the under side of the carriage there is provided a cross bar or rail M, which may be secured 5 thereto in any suitable manner, and which is grooved to receive crossed bearing rollers I5. These rollers 15 are also received in oppositely disposed grooves in a two-part guide rail l6 mounted for case shifting movement and receiving such movement by the usual means which include an arm l1. Thus, the carriage is supported and guided in its traveling movements from side to side of the machine under control of its escapement and tabulator mechanism.

Each of the carriage end plates l2 and. I3 is provided with an inwardly extending lug I 8, and these lugs I8 serve as supports for a tabulator stop rack or column stop bar which is designated as a whole by the reference numeral 20. This column stop bar 20 comprises a main or body portion 2| and a separate cover plate or member 22 secured thereto in a manner that will be described in more detail hereinafter. Said column stop bar 20 is adjustably secured to the lugs I 8 by means of screws 23 which pass through elongated openings 24 provided in the ends of the cover member and received in tapped openings 25 in the lugs l8. Washers 26 may be used to provide a bearing surface between the heads of the screws 23 and the flat surface of the cover member 22 adjacent the elongated openings 24. When the column stop bar 20 is properly mounted upon the lugs l8 it may be secured against longitudinal displacement with respect to said lugs by means of an adjustable set screw 21. A tendency for relative displacement between the carriage and the column stop bar occurs only when the carriage is arrested by the cooperation'of a projected tabulator stop with a column stop. Therefore, it is necessary to provide a set screw 21 only at the right-hand end of the column stop bar, or at the left-handrend as shown in Fig. 2.

As shown in Fig. 5, the body portion 2|. of the column stop bar, which may be cut from rectangular stock, is provided on its'under side with a longitudinal or extended channel or groove 28, said groove forming rear and forward flanges 29 and 30 on theunder sideof'said body member. The purpose of this groove is to lighten the entire construction and cut the cost of manufacture, as will hereinafter appear. However, this groove 28 should not be so deepor wide as to materially weaken the construction of the body member.

The upper surface of the body member 2| is also provided with a longitudinal groove ,or channel 3| which forms rear and forward flanges 32 and 33 for the reception of the cover member 22.. The channel or groove 3| is shallower than the groove 28 but nevertheless is slightly deeper than the thickness of the cover member 22 so that the flanges 32 and 33 may bepressed or swedged in to firmly fasten the cover in place, as will hereinafter more clearly appear. In order that the scribed above as being provided in the top and bottom surfaces of the body member 2|, said body member isprovided with a group of transverse, or fore and aft, slots or notches .31 which form comb teeth 3'1 in said body member. 7 These slots are cut at letter space intervals, which may be either, say for example, IO'or |2.to the inch depending on' whether the machine is provided with pica or elite? type, and extend from the top of thebodyv member through the flanges 32 and 33 and into the flanges 29 and-36,- as clearly shown in Fig. 5. In the present instance, I have shown twelve of the slots 3'1 to the inch, and each slot has parallel sides so that it may form a guideway for'the reception of a column stop'a's no tendency to move from-side to side in the 7 slots.

The cover member 22 which fits into the shal low cut 3! in the top of the body member 2! is slightly longer than said body member and, as

explained above, is provided with the elongated openings 24 near the ends'thereof to facilitate in attaching the assembled column stop barto the 'lugs I8 provided onthe carriage. The forward edge ofthe cover member is straight and abuts the flange 33 when mountedin the shallow channel 3| of the body member. The rearward edge, however, is provided with teeth 38 which'are' 'cut to match the slots3'l in the body member, so that when the cover member. is properly mounted,

stantially V-shaped longitudinal cut or groove 39 which is adapted to cooperate with a spring detent provided on each of the column stops, as will hereinafter more fully appear.

When constructing and assembling the column 5 38 registering and interlocking with the slots 31 15 adjacent the rear flange 32. Finally, the forward edge of the flange 32 is pressed, swedged or staked as indicated at 40, and the rearward edge of the flange 33 is similarly pressed or swedged as indicated at 4| to firmly lock the cover in its proper. position in the groove 3! and complete the assembly of the columnstop bar 29. The above described construction and assembly of the cohunn stop bar 28, with the longitudinal grooves in the upper and lower surfaces of the body member and the cover member 22 swedged in the upper groove 3! with the teeth 38 thereon registering or interlocking in the slots 31, is such as to strengthen the assembled column stop bar and render it rigid and none the less weakened by 30 the close relation of the slots 31 provided in the body portion. In other words, it will be seen that the-comb teeth 3'! intervening between the slots 3! are rigidly united at the lower ends thereof by the integral flanges 29 and 30, whereas the upper free ends of said teeth are firmly connect- 'ed to and interlocked with the teeth 38 of cover plate 22 which plate in turn is firmly connected to and reinforces the body member 2! of the stop bar[ It will be seen, moreover, that the upper 40 end of "each comb tooth 31* has a swedged connection at 40, M with the cover plate to provide an additional firm connection between the free fend of each comb tooth 31 and the cover plate.

Thus; it will be apparent thatthere is an interlocking between the cover plate and comb teeth in two directions at right angles to each other.

Furthermore, it'Will be apparent that any pressure applied to the assembled column stop bar, which would tend to bend it, is resisted by the strengthening eifect of the cover member 22 mounted and locked in'the upper longitudinal groove 3|. In actual practice it has been found that the above described construction of column stop bar is possessed of greater rigidity than most bars ofthis same general type and the danger of twisting or collapse, as is present in hollow tubes for example, is in fact, entirely avoided.

7 'Having thus described in detail the construction of my improved column stop bar, I shall-now describe an improved form of column stop specially designed for use in combination therewith. Referring now particularly to Figs. 1 and l, it willbe observed that my improved column stop, which is designated as a whole by the reference numeral 44, comprises a'thin blade-like mem-' ber of substantially the same thickness as the slots 31, but enough thinner so as toallow said stop tohave a firm sliding fit with the inner surfaces of the slot in which it is mounted. A spring detent member 45 may be formed integral with the upper edge of the column stop 44 in the same v[plane as the body portion thereof by cutting a longitudinal slot or indenture 43 in said stop close to and parallel with the upper edge thereof. The

resiliency of the spring detent member 45 of course depends upon the closeness of the slot 46 to the upper edge of the column stop 44, and also upon the length of the slot 46, said slot in the present instance extending practically the entire length of the stop 44. A substantially inverted V-shaped detent tooth or projection 41 may be formed on the upper edge of the spring detent 45 adjacent the right-hand end thereof (as the parts are shown in Fig. 4) to engage or be received in the V- shaped longitudinal groove 39 when the column stop 44 is in its projected position, as shown in Fig. 1. When the stop is in its projected position, it is prevented from further rearward movement by contact of a perpendicular stop portion 48 on the free end of the detent 45 with the forward edge of the cover member 22. When the stop 44 is in its retracted position it is held against accidental displacement or further forward movement therefrom by contact of a stop lug 59 with the associated tooth 38 on the cover plate 22. In its retracted position the detent tooth 41 abuts the forward edge of the cover member 22 to resiliently hold the stop 44 in this position.

It will be observed that the height of the stop portion 48 is slightly greater than the height of the detent tooth 41. Thus, in order to insert or Withdraw a column stop from a slot 31 the spring detent .5 will have to be depressed a greater degree than is required when moving the stop from retracted to projected position. To allow this greater depression of the spring detent 45, the outer edges of the slot 48 may be sloped as indicated at in Fig. l. Furthermore, the righthand edge (Fig. 4) of the stop portion 48 may be inclined as indicated at 52 to aid in the easy insertion of one of the column stops 44 into a slot 31. In this manner the stops may be readily assembled on or detached from the stop bar, when desired, without removing the cover plate 22.

Referring to Fig. 4, it will be seen that the degree of slope of the sides of the V-shaped groove 39 is somewhat less than the degree of slope of the V-shaped detent tooth 41. Such a construction allows a comparatively easy movement of the stop 44 from its retracted to projected posi tion or vice versa due to the camming effect of the walls of said slot on the detent projection 41. It has been found practical to have the degree of slope of the sides of the projection 41 substantially 30 degrees, and thus the degree of slope of the walls of the V-shaped groove 39 would be less than 30 degrees.

When the column stop bar 20 is equipped with a column stop 44 in each of the slots 31 and properly mounted upon the carriage of the typewriting machine, there will be one column stop 44 for each letter space position of the carriage throughout the extent of its movement. Normally the stops are in their retracted position, but they may be set or moved to projected position in any suitable manner, such for example, as by the use of a key actuated setting lever 53, as shown in Fig. 1. This lever 53 is pivoted at 54 to a bracket 55 which may be secured to the under side of the guide rail l6, and has an actuating or a setting movement in a counter-clockwise direction (Fig. 1). The lever 53 is actuated by means of a link 55 which may be controlled from a key in the keyboard of the machine if desired. The construction and arrangement are such that when the setting key is depressed, said lever 53 will be turned in a counter-clockwise direction, as shown in Fig. 1, to move a stop opposite or in line with it from retracted to projected position.

It will be understood, of course, that the selection of the stop which is moved to projected position in the manner described above will depend upon the position of the carriage in its line of travel. 5

When a column stop 44 is in its'projected position, it is adapted to cooperate with the usual counter or tabulator stop or stops. One of these stops which is shown at 51 is pivoted at 58 to the usual tabulator frame 59 at the rear of the machine. The tabulator stop 51 is controlled from a tabulato-r key (not shown) situated in the keyboard of the machine, and by depression of such a tabulator key may be moved from the full-line to the dotted line position shown in Fig. l. Dv" pression of a tabulator key also releases the carriage from control of its escapement (by means not shown) so that it will move to the left freely under the urge of its spring drum (not shown) until the projected column stop 44 contacts the actuated counter or tabulator stop 51.

My improved column stop bar and column stop may also function in combination with a clearing lever 60 which is adapted to return the projected column stops to their normal retracted positions. This lever is similar in shape to the tabulator stop 51 and like said lever is pivoted at 58 to the tabulator frame 59, and is controlled through a link 61 from a key in the keyboard of the machine. The clearing lever 89 is different from the tabulator stop 51, however, in that it is thicker in construction and is provided with a curved edge 62 having a beveled or cam face 53-on the left-hand side thereof. The construction of said clearing lever 60 is such that when the clearing key is de pressed said lever will be moved in a clockwise direction, as shown in Fig. 1, to force any projected column stops 44, which may be in line with it, back to retracted position. If several stops are in projected position, and the carriage is, say, in its extreme left-hand position, all of the projected stops may be moved to retracted position by depressing and holding the clearing key in depressed position and moving the carriage to the right. In doing this the beveled surface 63 acts as a cam to move each projected column stop that it may contact during the travel of the carriage to the right, from its projected to retracted position.

From the foregoing description it will be apparent that by means of my invention I have provided a simple and inexpensive, yet highly efficient column stop bar and column stop construction which may be readily incorporated in existing typewriting machines, and may be combined with existing tabulator mechanism, without modifying, or materially modifying the existing structural features of such machines. It will also be apparent that by my invention I have provided an improved column stop bar which is possessed of great strength and rigidity, and a column stop for said bar which may be effectively held in either its projected or retracted position, and which, moreover, may be readily inserted into or detached from said bar when desired and moved 65 easily from one of said projected or retracted positions to the other.

Various changes may be made in the construction, and certain features thereof may be employed without others without departing from my invention as it is defined in 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 with a column stop bar comprising a body member having transverse slots therein, and a cover member mounted on said body member and having teeth thereon which fit into said transverse slots and form an interlocking connection between the body and cover members of column stops mounted in said transverse slots. a

2. Ina typewriting or like machine, the combination with a column stop bar comprising a body member having a longitudinal groove in the upper surface thereof and also having transverse slots therethrough, and a cover member fitted into said longitudinal groove, said cover member having teeth in one edge thereof which fit into said transverse slots and interlock with the walls thereof, of column stops mounted insaid transverse slots and cooperating with said cover.

3. In a typewriting or like machine, the combination with a column stop bar comprising a body member having longitudinal grooves in the upper and lower surfaces thereof, and also having transverse slots therethrough, and acover memw through extending from the top surface thereof into the legs formed by said deep cut longitudinal groove, and a cover fitted into said shallow longitudinal groove, of column stops mounted in said transverse slots and extending into said deep cut longitudinal slot and cooperating with said fitted cover member. r I v 5. In a typewriting or like machine, the come bination with a column stopbar comprising a body member having a shallow longitudinal groove in the upper surface and a relatively deep out" longitudinal groove in the lower surface thereof and also having transverse slots therethrough extending from the top surface thereof into the legs formed by said deep cut longitudinal groove, and a cover fitted into said shallow longitudinal groove and having teeth which fit into said transverse slots, of column stops mounted in said transverse slots and extending into said deep ,cut longitudinal slot and cooperating with said fitted cover memberand with the teeth thereof. a a

6. In a machine of the class specified, the combination with a tabulator stop bar comprising a slotted body member and a cover mounted on and fixedto said body member and partially covering 7. In a machine of the class described, the coin- V bination with a tabulator stop barcomprising a slotted body member and a cover member having a longitudinal groove on the underside thereof v and teeth which engage in slots of the body member when the cover is mounted thereon, of stop members mounted in said slots and each having a detent which engages one edge of said cover when the associated stop is in retracted position andengages in' said longitudinal groove when such stop is in its projected position. 7

8. In a machine of the class described, the

combination with a tabulator stop bar comprising'a slotted body member and a separate cover member having a longitudinal groove on the under side thereof and teeth on one edge thereof which engage in slots of the body member when the cover is mounted thereon, of stop members mounted for limited movement in said slots and each having a projection and a spring detent on the upper edge thereof, said projection on each 10 stop engaging with the associated tooth in the cover and each detent engaging with the opposite edge of the cover when the associated stop is in its retracted position, each detent engaging in said longitudinal groove when the associated stop is in its projected position.

9. A stop carrying bar comprising a body member slotted transversely of its length to provide comb teeth which separate said slots, the bases of said teeth being formed integralwith said body member, and a separate cover plate mounted on said body member and having an interlocking connection with the free ends of said teeth to support them and resist the strain thereon.

10. A stop carrying bar comprising a body member slotted transversely of its length to provide comb teeth which separate said slots, the bases of said teeth being formed integral with said body member, a separate cover plate mounted on said body memberand having an interlocking connection with the free ends of said teeth to support them and resist the strain thereon, andseparate means for firmly connecting said cover plate to saidbody member. 11. A stop carrying bar comprising a body member slotted transversely of its length to provide comb teeth which separate said slots, the bases of said teeth being formed integral with said body member, and a separate cover plate mount- 40 ed on said body member and having an interlocking connection with the free ends of said teeth to support them and resist the strain thereon, the'upper free ends of said teeth having a swedged connection with said cover plate to firm- 1y connect it with said body member.

12. A stop carrying bar comprising a body member slotted transversely of its length'to provide comb teeth which separate said slots, the bases of said teeth being formed integral with said body member, a separate cover plate mounted on said body member and having teeth that are received in said slots near the free ends of the comb teeth and interlock therewith; and separate means for firmly, securing said cover plate a to said body member.

13. A stop carrying bar comprising a body member slotted transversely of its length to provide comb teeth which separate said slots, the bases of said' teeth being formed integral with said body member, and a separate cover plate mounted on said body member and having an interlocking connection with the free ends of said teeth to support them and resist the strain tent of sliding movement in said slots each of said stops having limiting means that coact with said cover plate to limit the movement of the mounted on said body member'and having an interlocking connection with the free ends of said teeth to support them and resist the strain thereon, and stops mounted for a limited extent of sliding movement in said slots, each of said stops having limiting means that coact with said cover plate to limit the movement of the stop on the bar, said limiting means including spring means that enable the stops to be readily mounted on the bar and to be detached therefrom when desired without detaching said cover plate.

15. A stop carrying bar comprising a body member slotted transversely of its length to provide comb teeth which separate said slots, the gases of said teeth being formed integral with said body member, and a separate cover plate mounted on said body member and having an interlocking connection with the free ends of said teeth in two directions at right angles to each other.

RUSSELL E. BENNER.

CERTIFICATE OF CORRECTION.

Patent No. 2,023,508. December 10, 1955.

RUSSELL E. BENNER.

It is hereby certified that error appears in the printed specification of Page 5, second the above numbered patent requiring correction as follows: column, line 4, claim 15, for "gases" read bases; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 31st day March, A. D. 1956.

Leslie Frazer (Seal) Acting Commissioner of Patents.

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