|Publication number||US894298 A|
|Publication date||Jul 28, 1908|
|Filing date||Aug 18, 1906|
|Priority date||Aug 18, 1906|
|Publication number||US 894298 A, US 894298A, US-A-894298, US894298 A, US894298A|
|Inventors||Lewellyn B Walker|
|Original Assignee||Lewellyn B Walker|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (4), Classifications (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
N0. 894,298. IPATEN'TED JULY 28,1908.
L. B. WALKER.
TYPE WRITER CABINET. A-PPLIOATION FILED AUG. 18. wee.
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TYPE WRITER CABINET. I APPLICATION FI ED AUG/.18, 1906.
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P 100x 9 I F ma A /A M om 9 l 8 2 Y L U J D E T N E T A P R E K L A W L cm 9 .2 4 0vv O0 0 N TYPE WRITER CABINET. APPLICATION FILED AUG, 18, 1906.
lllllllmlllll wnijfi' No 894,298. PATENTED JULYZS, 1908. L. B. WALKER. TYPE WRITER CABINET! APPLICATION FILED AUG 18, 1906.
I} SHEETS-SHEET 4.
UNITED STATES PATENT OFFICE.
LEWELLYN B, WALKER, OF POPLAR BLUFF, MISSOURI.
vided' for adjustably sustainin a type wris ing or adding machine, where y, when the machine is not in use, it can be drop ed or swun within the cabinet, out'of si t, or
pulle out, or up, and held at a suitable positron to operate the same, and primarily, my
invention seeks to provide acabinet of this character, of a simple and economical con= struction in which the several parts are so designed whereby they cari be readily asseni= I bled, and the operation otbringin'g the machine in pcsitionfor use for messing same is rendered expeditious and convenient.
My invention consists in the constructionand arrangement of parts hereinafter described, particularly pointed out in the 2 claims and illustrated in the accompanying drawings, in which Figur e l, is a perspective fview of my form of cabinet, with the supportin leaf extended and the machine in posltion t ereon for use.
Fig.2, isa similar view of the cabinet, the
machine being incased. Fig. 3, is a transverse section of one end of the cabinet taken substantially on the line 3 3 on 1.
Fig.- 4,1s'a similar view, showing the main cabinet door opened, the drop leaf and the machine swung down in the position they assume, preparatory to shoving them back into the cabinet. Fig. 5, is a similar cross sectional view, taken on the line 6-5 on Fig.
2, the machine being? closed within the cabinet, the position of the machine being shown reversed onthe drop leaf in dotted lines.
Fig. 6, is a'plan view, partly in horizontal section, taken substantially on the line 66 on Fig. 3, different adjustments of the pivotal base for the machine being in dottcd liucs.
F ig. 7, is a detail cross section on the line 77 on Fig. Fig. 8, is a detail cross section on lhclineS SonFig.3. Fig.9,isadetailpcrm) spcctive VlOW that illustrates the coi'iperativc position of the "lower end o't'the automatic locking detent, the tripper member therefor,
and the lever devices that 'coact therewith.
Fig. 10, is adetail view of the said detent.
i 11, is a similar view of one of the shift- Specification of Letters Patent. Application filed Augus t 18, 1906. Serial No. 331,204.
, desk, and as best shown in Fig.
Patented July 28, 1908.
lar view of the slotted joint that connects the throw lever 67 a with the counterpoise 9.
Fig. 13, is a detail View of the slip head n1e1nber 20, hereinafter referred to.
In the drawings, I have shown a cabinet in the nature of the conventional style of oflice desk but Idesire it understood that my construction of cabinet can be readily formed as a part of other styles of desks without requlring" any n1aterial chan es of the parts hereinafter described and ilustrated iii the drawings.
At one 8I1d,*t118 desk has a vertical compartment extending the full height thereof,
the front end of which is closed by a door 2 that extends nearly to the desk top and the permanent front piece 3, which has a recess 4 inits bottom of less width than the door and which, when the parts are stored or at their lowered position, is closed by gravity drop ed slip head member 20 that is held in a vertical recess 21 formed in the front piece 3, and has the lower end 28 suitably beveled whereby to readily rise up when the leaf is lifted, it being understood that suitable stop shoulders 20 are formed on the member 20 to hold it from falling down and out of the recess 21.
The compartment 1 is thc'full width of the 6, it has its opposite sides provided with a pair of opposing horizontal track guides which are disposed in a plane below the top of the door opening, and at a suitable point, about midway of the back and front ends of the com: partment, is disposed a pair of oppositely located pendentsegmental guides 6-6 that extend up to near the desk top and which merge with another pair of oppositely arranged guide-ways 7-7 that extend from the guides 66 to the back of the desk, as shown and for the urposes presently stated.
8 designates acrop leaf or member that supports the writing or other similar machine, which, by referring now more particularly to Fig. 6, it will be seen. has the outer or main part of a width sullicicnt to [it through the recess 2] in the pcndcm and. lixcd front wall 3 and has its rear or inner end ol' :1 width so' 'that its opposite edges 8 l-80 ride close up to ,the side track and guide members, suclrwidening of the leaf also providing stop shoulders-8' that limit the outward pull thereof when it is dcsir d to bring the machine in position for use.
w Upon the widened rear end ol' the lost is rod 10, upon the opposite outer ends of which are mounted rollers 11 that ride upon the track guides 55, which, together with,
the rollers 90, and the guides 6 and 7, sulpport the drop leaf and its eounterpoise, t
several parts just described being so arranged that when the leaf is pulled out to the position shown in Fig.4, preparatory to being swung up, the rollers 90 will be in position to engage with the segmental guides 6-6, which, together with the guide ways 77 are disposed in a plane inside of the track guides 5, as clearly shown in Fig. 7, the segmental guides 6 having cross openings 60 for the passage of the cross bearin rod 10 that carries on the rollers 11.
To provide for making the segmental guides 66 continuous, that is, a continu ous guide way for the roller guides '90, and particularly for closing the gap' or passages 60 during the movement of the members 90 up over the guides 6, a plate 103 is mounted on top of each of the guide ways 7 and the said plates 1"3 are rockably mounted on the guides 7 at about their center so as to have a pivotal support and each plate has its forward end shaped to follow the track ways 7 and 6 and to extend down over the gaps 60 when they are at their normal position, which position the plates .103 assume by gravity.
The, inner ends of the plates 103 are bent at an angle with which the guide rollers 90 engage when the supporting means are moved back to the position shown in Fig. 5 and in thus engaging the ends of the irons 1.03 their front ends are swung up to uncover the gaps (30 for clearing the way for the fulcrum rod or axle 10.
By reason of the construction and arrangement of the drop leaf, the manner of pivctally supporting it, and the guide members, as stated, it will be apparent that when swung down, the counterpoise, which,it should have been stated, is disposed at an angle to the, front of the machine bearing end of the leaf 8, supports the leaf with the machine at an angle of approxinlately 30 with the guide rollers t)llt)() in position to engage the upper edge of the segmental guides, and when in this position, the leaf can be readily raised to the desired horizontal plane since the. guide rollers t t! now engage and ride down upon the segmental guides (l.
' For positively holding the machine and its supp ortin leaf to its horizontal or operative position, have provided a means that automatically engages the rear or weighted end of the said leaf, which means is in the nature of a holding bar 100 that is loosely and pendently supported by a hinged connection 100 on the under side of the desk to and in such manner whereby it assumes a fixed osition when the leaf is raised by engaging t 1e beveled notch 90* on the eounterpoise end of the leafas clearly shown in Fig. 9, by reference to which itwill be readily apparent that when the leaf is up at its horizontal. or operative osition, it is positively held to such position by its counterpoise and the detent 100, it being also apparent that the said "leaf is further sup orted by a door 2, when the latteris UlOSGC but the door support is merely an auxiliary and is not required for sustaining the leaf 8.
By reason of the manner in which the detent 100 is arranged and eoacts with the .counterpoise end of the leaf, I provide for automatically trippin the said member 100 to disengage it-from t 'IGCOllIltGIPOlSQ end of the said leaf by a means presently explained.
'To provide for freely and conveniently entering the machine into the desk compartment, the supporting leaf 8 is provided with a supplemental base in the nature of a turn table 18,1which is centrally pivoted on the front end of the said leaf so it may be readily swung to the different positions indicated in dotted lines in Fig. 6, to which positions the said base may be held by a suitable latch device 19. The main purpose, however, 'for mounting the turn table on the supporting leaf, is that it enables keeping the desk top to the uniform or standardheight, for by thus mounting the machine, provision is made for properly housing or put ting away the larger,- particularly the longer machines, since when the longer machines are used, in putting them away, they can he turned round to an opposite position, see dotted lines on Fig. 5, and thereby ut-ilizethe space, not otherwise available. This feature of my invention is an advantageous one, for by thus mounting the machines and supporting them when housed, I am enabled to support and house. the tabulating machines of such length that cannot be housed in the standard size desk, if sustained with their key board forward.
By reason of the construction of the machine holding lezf and the manner of pivotally sustaining it within the cabinet as described, it is obvious that when the leaf is swung down with the machine, the'same may be pushed back on the horizontal track by grasping the pendent or machine holding part of the leaf, but as such means of storing the machine is no desirable, l have provided a simple and easily manipulated lever mechanism, operable from outside the casing,
which includes a handle or throw member, so
positioned and automatically joined with the s; 4 .and, .-7,v comprises a lever 60 having a lateral stud or pintle casting 61 at taeh d vhich extends through the side of the br r a pendent m, mber 62-that projects down in a planethehandleverhQi t g Toiheleverendof the member 62 is pivot- 211115, connectedca rearwardly extending link rod 63;wh ich joinsavith the lower end of an o il latinglcver 6 that is fulcrumed on the stud GSQa-nd to the upper end of which. pivotally connects the forwardly. extending link roil fi'fi, s iirturn pivotally' joined with a U shaped l everscasin 67, the oppositc ends of which, are pivotal y; mountedin bearings tis tiSfattac-hed tolthe cabinet floor.
u 1e casingg67 hasan upwardly extending lev 67;? the upper end .ofv which has a pivotal conneotioi with a slotted link69 that isihinged ,to the, underside, of the. counter-, p'oiseas 'sliown in detail in Fig. 12, and the said arm 67? forms a stop for limiting the upward swing of the counterpoise or weighted end of theleaf, and it also serves as a means for actuatingfa trip er orreleasing dog 102 which is loosely: ant slidably mounted in a guide way 104' thateXtends-entirely through the, counterpoisevend. I -;.1h'e" t 'rip'per 1 ()2 has its front end bifurcated asat a; to straddle the'lever 67 and has its other end turned upas at 102 to form a stop 'tplimitthe drop of the said detent when thelever isat its closed position and the said 45 end 102 -'projects into, the beveled notched openingwith which the lock member 100 en gages,the severalparts ust described being relati 'ely s ofconibined that when the lever 60 properly shifted to lower the machine intot-he desk, the'leverfarm 67* in the first part of itsmovement, engages the tripper or dog 192; and, through it disengages the lock ingnieinber 100 from the counterpoise 'ends of the leaf, thus releasing the. said leaf,.whicl1, by the completion of t e movement of the lever 68 is then lowered to the position shown in Fig. 5. The trip or dog 102 returns to its normal position by gravity when the parts assume the position shown in said Fig. I
While I have more specifically described my invention as adapted for sup porting and storing a type writing machine, it is manifest that the same may be as readily used for adding or other machines adapted to be supe mechanism which is best shown et,andto which is fixedly connected ported upon and used on an ordinary desk or table.
From the foregoing, taken in connection with the drawings, the complete structure, operations thereofand the advantages of the same will, it is believed, be readily apparent to those skilled in the art to which my invention belongs and while the detailed arrangement oftparts described, I have found, in
practice, as meetingthe desired require ments, I desire it understood thatI do-Iiot limit myself to such. details asthey maybe readily modified or varied without departing from my invention-or the scope of the appendedclaims.
Having thus described my invention, what I claim and desire to secure by Letters Patent, is v 1. A typewriter cabinet having an open front compartment, a counterbalanced drop leaf pivotally sustained in the said compartment, and movable in the horizontal plane thereof, an automatic means mounted within the compartment that engages thedrop leaf when it is 'dra'wnout and elevated andlocks it to its elevated position, and a lever actu-,
ated means; within the; compartment for swinging the drop leaf and releasing theauto- .matic locking'means, as setforth; q v
2. A typewriter cabinet, having a compartment; a pair of opposing lower side guides in thecom )artmcnt, a pair of upper opposing side; guires, a leaf or support inc udinga front machine holding portion and a rear weightedend, the front machine holding portionhaving side bearings for engaging the lower guides, the rear end having side bearings for engaging the upper guides when' the leaf and machine are in their drop posi tion. I
3 In a typewriter cabinet, having a compartment open at the front; adrop leaf having a counterpo se at its rear end, a pivotal bearing for said leaf at a point in advance of its counter oise, means within the said compartment or sustaining the pivotal hearing I whereby the leaf and its counterpoise is movable back into the compartment when the leaf is down and automatic means for en aging the counterpoise end of the leaf for. holding it to its raised position when turned out, as set forth.
4. In a typewriting cabinet having a compartment open at the front; a drop leaf, comprising a front portion, a rear portion disposed at an angle to the front portion, and a counterpoise on the rear end, a pair of oppositely disposed tracks on the compartment sides, a bearing that forms a pivot for the drop leaf, having rollers for engaging with said tracks, a pair of oppositely disposed guides, and bearings on the countcrpoise for engaging said guides when thcdrop leaf is at its swung down posit-ion, as set forth.
5. In combination, with the cabinet compartment having lower track guides, upper guide ways and segmental side guides; a drop leaf which comprises a front member, a machine base pivotally mounted to rotate thereon, a rear member disposed at an angle on the front member, a bearing connected to the leaf and having rollers for engaging the track guides, a weight-on the rear end of the leaf, having side bearing adapted to engage the segmental guides under one adjustment of the leaf and to engage the upper guide ways under another adjustment of the leaf, as set forth.
' 6. In a typewriter cabinet having a compartment, open at the front: a counterbalanced supporting leaf pivotally sustained within the cabinet compartment and movable in the horizontal plane of the said compartment and automatic means that engage the counterbalanced end of the leaf. when it Is moved and holds it down when the leaf 1S swungup to sustainthe typewriter in the operative position. as set forth.
7. In a cabinet of the character described; a carnage mounted within the cabinet, movable inwardly and outwardly in a laneparallel with the cabinet top, a drop eaf plvotally hung on the carriage and movable therewith and a lever actuated means for simultaneously swinging the drop leaf on the carriage and'moving the leaf and the carriage in the horizontal plane, as set forth.
8. In atypewriter cabinet having an open front compartment; a pair of opposing guides on the opposite sides of the compartment, a rod disposed transversely of the com partment having roller bearings at the end that travel on the said guides, a-counterbalanced drop leaf hung on the said rod, mechanism within the compartment and a lever cooperating therewith outside of the compartment for simultaneously swinging the drop leaf up or down and moving it with the supporting rod in the horizontal plane, an automatic actuating detent for engaging the weighted end of the leaf when the other end is raised, to lock the leaf to such position, anda trip device actuated by the lever c011- trolled mechanism for releasing the detent, as set forth.
9. In a typewriter machine cabinet, a supporting leaf, comprising a front pivotal machine holding portion, a rear counterbalance member, a shdable p votal bearing for the said leaf, guides within the cabinet on which said bearing is slidably mounted, and a lever mechanism within the cabinetrfor sliding the supporting leaf, operable from the outside of the machine and including a series of toggle members and links, one of said links being connectedto the counterbalance end of th supporting member.
10. The combination with the cabinet, having an open front compartment, track guides, the upper guide 'ways and the seg mental guides mounted within the compartment, the latter segmental guides having gaps in line with the track guides, and supplemental members rockably mounted on theupper guide ways that normally close over the gaps in the segmental guides, and having bent up portions; of the drop leaf having roller bearings that ride on the track ways and aweight on the rear end having lateral bearings that engage the segmental guides when the leaf is swung up, and which engage the upper and sup lemental guides when the leaf is shoved bae i, the said lateral bearings operating over said bent up ortions to tilt the rockable guides whereby the gaps in the said segmental guides are u'ncovered at redetermined times, for the purposes s'tatet f 11. In a cabinet having an open front casing, a drop leaf mounted in. said casing to move inwardly and outwardly, a pendent detent pivotally supported in the casing in position to automatically engage the drop leaf when it is moved outwardly and elevated, and a lever mechanism for actuating the drop leaf, said mechanism including a lever arm pivotally supported in the casing, a slotted link pivotally connecting said drop leaf and arm, and a tripping device slidably mounted on the drop leaf and positioned to engage said detent, said tripping device having one end bifurcated that straddles and engages the lever arm, whereby the detent is automatically disengaged as-the drop leaf is aetuated. LEWELLYN B. WALKER.
E. LINTON, M. J. AR1-1srRoNe.
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|US2746825 *||Feb 14, 1956||May 22, 1956||Lee Julia S||Combination sewing cabinet, work table and storage space device|
|US5257767 *||Jul 21, 1992||Nov 2, 1993||Waterloo Furniture Components, Ltd.||Adjustable support mechanism for a keyboard platform|