US2215978A

US2215978A - Typewriter carrier

Info

Publication number: US2215978A
Authority: US
Inventors: George W Schad
Original assignee: Stow and Davis Furniture Co
Current assignee: Stow and Davis Furniture Co
Priority date: 1939-02-24
Filing date: 1939-02-24
Publication date: 1940-09-24
Anticipated expiration: 1957-09-24

Description

5 Sheets-Sheet 2 m. M mm NM MIYM mom W W m m L G. W. SCHAD TYPEWRITER CARRIER Filed Feb. 24. 1939 Sept. 24, 1940.

d Mm fi v .Ei a O 1 8i 6 w 2 a Sept. 24, 1940. G. w. SCHAD TYPEWRITER CARRIER 3 Sheets-Sheet 3 Filed Feb. 24. 1939 Patented Sept. .24, 1940 UNITED STATES PATENT Claims. (01. 312-29) This invention relates generally to typewriter carriers and. is particularly adapted for use in the pedestal of a typewriter desk.

The carrier is composed of a support for the 5 typewriter which is adapted to move horizontally within the pedestal and vertically when the support is outside of the pedestal. Means are also provided whereby the typewriter support maybe elevated to a plurality of up-per'positions to suit -1 the desires of the person using the typewriten.

One of the objects of the invention is to provide horizontal guide ways within and at the upper part of the pedestal so that the support may be moved into and out of said pedestal.

15 Another object of my invention is to provide vertical guide means by which the typewriter support may be elevated, to the desiredposition when it is outside of the pedestal;

A further object of the invention is to provide a novel catch means adapted to maintain the typewriter support in a lower position on the vertical guide means when the typewriter is not in use, and in an upper position when in use.

A still further object is to position the said 7 catch means in such a manner that it will be im-' possible to inadvertently elevate the typewriter support except when said support is outside of the pedestal. I a. 7 v Still another object of my invention is to pro- 30 vide spring means which will automatically elevate the typewriter to an upper position upon the release of the aforementioned catch'means.

Other objects of the invention willappear as the description proceeds. 35 To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafterv fully described and particularly pointed out in the claims.

The annexed drawings and following descrip- 40 tion' set forth in detail certain means for carrying out my invention, said means constituting, however, but one of various ways in whichthe principle of my invention may be used. I I o In said annexed drawings, wherein like reference numerals refer to like parts throughout the various views: I v, r

Fig. 1 is a part sectional part elevational View on a vertical plane through the pedestal of a 50 desk showing the'side of the carrier mechanism in elevation. I e

Fig. 2 is a fragmentary sectional view similar to Fig. 1 but showing the carrier mechanism outside of the pedestal with the support-in itsupper .5,5. position..v V n j .1 a

portions 6 in constant contact with the hori- Fig. 3 is an underplan view, with partsin section, of the device as shown in Fig.4. 7 V v i Fig. 4 is a front elevational view of the mechanism with the support in its lower position within the pedestal. I v I j Fig. 5 is a sectional view taken substantially on the plane of the line indicated by the numerals 5-5ofFig.3.

Fig. 6 is a sectional View taken substantially on the plane of the line indicated by numerals 1, 66 ofFig. 3, and, I Fig. 7 is a fragmentary part sectional part-elevational View of a portion of thedesk pedestal showing the mounting of one of the centering e pieces.

I x Referring now more particularly'to the drawings and more especially to Figs. 1 and '2, the .top of the desk which extends over thepedestal is indicated by the numeral l and the back panel is indicated by the'numeral 2. -Withinthe pedestal and near the bottom thereof at each side there i is secured,in substantially a horizontal plane, an

angle 3, each of which has its horizontal portion extending inwardly from a sideof the desk pedestal. This is perhaps more clea'rly shown in In cooperative association with each .of the angle members 3 Ba flat piece 4 which is bent downwardly at one side as at. E and at itsjfront and rear ends is provided with a portion which is return-bent to form a substantially, U-'sh ap'ed portion 6. These U-shaped" portions 6,} are adapted to have inserted therein the horizontal edge of the angle 3 and the portions 6 are adapted to slide on said horizontal edge of the mem- L ber 3.

Extending between and secured to each of the members composed of the portions 4, 5 and 6'is a channel member I -to maintain the U-shaped zontal portions of-the angles 3.

The member. 5 also extends forwardly beyond the front end of the angle 3. At the front of the 1 desk pedestal is provided a panel 8 which is provided with handles 9,.to give the appearance of a plurality of drawers inthe pedestah, Thejbottom of the panel 8 ateach side thereof is pivotally secured to the forwardly extending portions .of

, the members 5 so that when his desired to move the typewriter from the pedestal the panel 8Ia ssumes a. horizontal position at the bottom of the .pedestal by pivoting it about the ends of'the member 5.- Then, by means of theslidingengagement between the angle members 3 and the return-bent portions 6,. the panel 8 .moved 55 a vertical channel member i3 which has secured to the top thereof a horizontally positioned angle l4 to which is secured a pair of rollers i5 adapted to be inserted within the horizontally positioned channel members or guide ways It]. Extending between the vertical channel members or guide ways I3 is a cross piece l6 so that the rollers l5 will be maintained in their respective channel members. Suitable braces such as I! and I8 extend between the angles M and the vertical guide means [3 so as to maintain the various parts of the mechanism rigid and in the same relative positions at all times.

A support 89 is provided on which the typewriter rests. .At the inner end of the support 89 and on each side thereof are secured brackets 20 which are provided at their outer sides with rollers 2|, adapted to run in the vertical channel members I3.

Extending downwardly from the cross member [6 at each end thereof and adjacent the brackets 29 are slide rods 22 about which are coiled compression springs 23. Near the top of each of the brackets 20 is secured an additional plate provided with an extension 24 which has an opening therein to receive one end of the slide rod 22. This portion 24 is adapted to be maintained in'contact with the upper end of the compression spring 23 at all times. The lower end of each of the slide rods 22 is threaded and has a portion which extends through openings provided in tie members 25. Between each tie member 25 and the bottom of each spring 25 is located a nut 26for the purpose of regulating the compression of the spring 23, which it may be desired to vary from time to time depending upon the weight of the typewriter positioned on the support I9.

The springs 23 must at all times be sufficient to just overbalance the weight of the typewriter so that when the support l8 is released from its lower position of Fig. 1 the springs will be sufficiently powerful to elevate the support with the typewriter thereon to an upper position as shown in Fig. 2.

The horizontal guide ways l0 allow the mechanism including the support l9 and the vertical guide ways l3 to be moved thereon by means of the rollers l5 and when the frontmost rollers near the forward portion of the pedestal they will be stopped by the screws l2 and will come to rest in the depressions ll, so that when the typewriter is in use the carrier may not be inadvertently moved rearwardly. The depressions H will tend to maintain the carrier in an outward position.

Each of the vertical channel members I3 is provided near its lower end with an. opening 21, and

horizontally and laterally positioned rods 28 are adapted to be inserted in the openings 21 to maintain the support in a lower position, these rods being slidably supported at the bottom of the support l9 and movable therewith. The rods 28 also normally extend through openings provided in the bracket members 21!.

Referring now more particularly to Fig. 3, to the bottom of the support H3 at each side of the center thereof is provided an eye member 29 through which the rods 28 are permitted to slide. Toggle links 30 are pivotally secured at their outer ends to the inner ends of the rods 28 as at 3! and at their inner ends to each other as at 32. To the bottom'of the support i9 is secured a guide member composed of two parts 33 and 33a. in the form of Z-bars and spaced apart from each other to permit the free sliding movement therein of the member 34 which is an elongated strip of metal bent downwardly at one end to form the portion 35 and then again outwardly to form the hooked end 33, as more clearly shown in Fig. 6.

About the hooked end 36 of the member 34 is secured one end of the tension spring 3'1, the other end of which is secured or hooked to the lower end of the member 38 which is secured to the inner edge of the support IS. The two links 30 are also secured at the point 32 by means of the screw- 39 to the sliding bar 34 so that the spring 31 tends to maintain one end of the bar 34 against-the member 38 and consequently, by means of the links 39, the spring 31 will also tend to maintain the rods 28 in an extended position through the openings in the vertical channel members l3.

Two lever arms are also provided beneath the support I9 adap-ted'to be manually operated to extend the spring 31 which will result in a forward movement of the pivotal point 32 and an inward movement of the outer ends of the toggle links 30. This inward movement of the toggle links will cause an inward movement of the rods 23 and will therefore disengage their outer ends 'from the opening in the vertical channel members 13 in which they have been resting.

I These horizontally positioned lever arms are designated by the numerals 4D and 4!, the numeral:40 being used to designate the lower-most arm. These arms are mounted one above the other and each is employed for the same purpose and operates in the same way. Either one may be utilized in withdrawing the rods 28 from their openings, the object in using two such arms in the construction i is obviously for the reason 'that some of the carriers may be positioned in the right hand pedestal of a desk while others may be'positioned in the left hand pedestal, and by the placing of two such similar lever arms in the mechanism the device will be operable from nated respectively by the

numerals

41, 48 and 49,, all as shown in Fig. 4. The portions of the arms between the return-bent parts 44 and 45,

and likewise 41 and 48, extend below and around each of the brackets 2|].

I At each side of the support I9 and to the underside thereof are secured slotted members 50 and 50a. The member 50 has therein an upper elongated slot 5| and a lower shorter slot 52. 75

2,215,978 The member 50a is similarly constructedexcept that the slots therein are in a reversed position,

'for this reversed construction will be presently described.

When the handle member 49 is utilized to Withdraw the bars 28 from their openings, the arm 48 will be moved forwardly and will slide to the forward end of the slot while its other end will bemaintained in the short slot in the member 50a, which is equivalent to its being pivoted at its opposite end. This movement of the arm 41 will cause a forward motion of the plate 34 and the end of the spring 31 which, being secured to the innermost ends of the toggle links 36 at 32 by means of the screw 39,

will retract the rods 28, thus disengaging their outer ends from: the holesin the vertical channels l3 in which they have been positioned. 'If it is desired to use the handle portion 46 for the retraction of the bars 28 the same results will be attained through a forward movement'of the lever arm 40 which will be moved to the forward end of the elongated slot in the, member 50a and will remain pivoted at its opposite end by reason of its being positioned in the shorter slot 52 of the member 50. After the rods 28 have been disengaged from an opening and the lever arms have been released, movement either upwardly or downwardly of the support l9 will allow the rods 26 to be expanded into another opening in the vertical channel members l3 by reason of the fact that the spring 31 maintains a continuous tension on the toggle links 30 tending to force the rods 28 outwardly.

In the upper portion of the channel members 13 a plurality of holes are placed, three of which are shown in the drawings and designated respectively by

numerals

53, 54 and 55. Of course, a greater or smaller number could be used without in any way departing from the spirit of the invention.

Depending upon the person using the typewriter, it is sometimes desirable to have it elevated to a higher or lower position. Upon the release of the carriage mechanism just described the spring 23 will immediately elevate the support l9 together with the typewriter thereon and the spring 31 will force the rods 28 into the lowermost opening 53. If it is then desired to raise the typewriter still further, the carriage mechanism must again be released by the forward movement of either the

member

46 or 49, which will allow the support to be raised still further and cause it to be stopped when the rods 28 will be inserted automatically in the next higher opening. 7

It is to be noted at this point that the lever arms and the

portions

46 and 49 thereof which sociated therewith will be positioned as shown.

in Fig. 1. When it is to be used, the front panel --8 will be pivoted about the forwardend of the member 5 to a horizontal position and moved out of the way by moving it rearwardly on the angle member 3, the horizontal edge of which 'is positioned within the U-shaped ears 6. The carriage itself is then withdrawn from the pedestal by means of the rollers l5 in contact with the channel members Ill. The forward movement of the front rollers l5 will be stopped by the screws I2 and they will come to rest in the depressions II; this assures the operator that the carriage will remain in its outer extended position until a sufiicient force is exerted thereon to raise the forward rollers I5 out of the depressionsl l. One of the

handle members

46 or 49 may then be moved forwardly to effect a release of the rods 28, as above explained. Upon the'rods'being released from the openings 27 in the vertical channel members E3, the compression springs 23 immediately force the support '19, with the typewriter thereon, upwardly until the rods 28 are again forced outwardly into one of the openings in the upper part of the vertical channel members l3. The support and typewriter will then remain in this position while in use after which time one of the lever arms may again be moved forwardly to disengage the rods 28-so that the support and typewriter may be forced downwardly until the rods 28 again engage with the openings 21.

In view of the weight of the typewriter, it

sometimes occurs that certain parts of the mechanism may become out of alinement, and to correct .the situation when it occurs, centering blocks 56 are placed at the inside and front of the pedestal. Theseblocks are curved in such a way that, as the carriage is being moved outwardly the vertical. channel members l3 will slide past the curved portion and the mechanism itself will tend. to become centered by reason of these centering blocks.

In addition to the bracesfl'l and [8 which aid in maintaining the vertical channel members in proper position, the brace members 51 are also utilized between the support l9 and the brackets 20 to aid'in. strengthening the carriage in its entirety.

From the above description it will be seen that I have constructed a typewriter carrier which is extremely simple to operate and may be withdrawn from the pedestal of a desk and set up in a position ready for use within a very short peri- I vate the typewriter until it has been completely withdrawn from the pedestal.

Other modes of applying the principle of my invention may be used instead of the one here explained, change being made as regards: the mechanism herein disclosed, provided however, that the means stated by any of the following claims or the equivalent of such stated means be employed.

I, therefore, particularly point out and distinctly clarify as my invention:

1. In combination with a desk pedestal, a typewriter carrier comprising in combination, a typewriter support, vertical guide means, horizontal guide means located within and at the top of said pedestal, said support being vertically slidable in said vertical guide means and the vertical guide means adapted to be horizontally slidable in said horizontal guide means, catch means to maintain said support in a lower position, and

means to elevate said support upon the release of said catch means.

2. A typewriter carrier adapted to be moved into and out of a desk pedestal comprising horizontal guide means located within and at the top of said pedestal, vertical guide means having rollers attached thereto adapted to move in said horizontal guide means, a typewriter support, brackets on said support having rollers thereon mounted in said vertical guide means, catch means to maintain said support in a lower position and means to urge said support upwardly upon release of said catch means.

3. The combination of elements defined in claim 2, said last named means including a rod positioned adjacent each vertical guide means, a compression spring mounted on each rod, an arm extending over each spring and connected to one of said brackets, whereby said support will be elevated when said spring is expanded.

4. In combination with a desk pedestal, a typewriter carrier comprising, a typewriter support, vertical guide means, horizontal guide means secured to the inner sides of said pedestal, said support being vertically slidable in said vertical guide means and the vertical guide means being horizontally slidable in said horizontal guide means, catch means to maintain said support in a lower position, means toelevate said support upon the release of said catch means, and manually operable means near the rear of said carrier to release said catch means.

5. In combination with a desk pedestal, a typewriter carrier comprising, a typewriter support,

a iae s vuponthe release of said catch means, and means operable by the hand of the operator only when said support is outside of said pedestal to release said catch means.

6. A typewriter carrier located in a pedestal of a desk comprising in combination, horizontal guide means located within the pedestal, vertical guide means traversing said horizontal guide means, a support traversing said vertical guide means, means for maintaining said support in a lower position when it is within the pedestal, means for automatically elevating said support to an upper position when it is outside of said pedestal, and manually operable means to withdraw said third mentioned means and thereby allow operation of said elevating means.

7. The combination of elements defined in claim 6, said manually operable means being so disposed as to prevent elevation of said support while it is within said pedestal.

- 8. In a device of the class described, a vertically movable support, and catch means for maintaining said support at any one of a number of predetermined elevations which includes horizontally positioned rods slidably mounted on said support, vertical guide means which said support traverses provided with vertically spaced openings, toggle links secured to said rods to extend and withdraw said rods to and from said openings, and means to actuate said toggle links including a lever arm pivotally mounted on said support and connected to said toggle links.

9. The combination of elements defined in claim 8, wherein said lever arm extends laterally across said support and is pivotally secured thereto near one end of said arm, the juncture of said links being pivotally secured to said arm, whereby a movement of the arm will cause movement of said links and a consequent withdrawal o said rods from said openings.

GEORGE W. SCI-IAD.