US1305893A - Type-wkiting machine - Google Patents

Type-wkiting machine Download PDF

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US1305893A
US1305893A US1305893DA US1305893A US 1305893 A US1305893 A US 1305893A US 1305893D A US1305893D A US 1305893DA US 1305893 A US1305893 A US 1305893A
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type
toothed
machine
type bar
lever
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J1/00—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies
    • B41J1/08—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies carried on sliding bars or rods

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  • t0 provide a form, ot' rolling;r suppont and guide or the tail end of the ty ple-bar, thus making it possible to dispense with the usual lower tail end guides on recipmcating type bar constructions and making it possible to use a much shorter ty pe-bar, and still obtain the maximum amount of throw, while at the same time securingr a. decided advantage not only in conzpactness but also in ease of 0peration due to the elimination of unnecessary friction ofA all sliding connections which are dispensed with in my construction.
  • Figure 1 is a top plan view showingr the arrangement of the parts aasociated with the type bar action of my machine with parte of the machine main fname and platen broken away.
  • Figi. is a' detail sectional View through the machine taken approximately on line .-E--2, oi Fig". l.
  • tshls view parts of the carriage for support-ing the platen and for shifting same are omitted as the same forms no part ot' the invention.
  • the invention is preferably incorporated into a construction havingr a main supporting frame of special and irregular construction as indicated by the reference character l0.
  • This frame is preferably of integral constrlnztion and the side portions of the frame are designated by the reference character 103, the back side of Ithe frame at 10b and the front at l0".
  • the frame is providedwith four or more downwardly eX- tending projmtions or legs 10d by which the machine may be supported upon a fiat surface as upon a table top.
  • 11 designates generally the platen of the ordinary cylindrical form. It will be understood that the platen will be supported in the ordinary manner upon a carriage of any desired construction mounted upon the main frame d0.. Nocerriageis shown in the drawingas this foms no part of the present invention.
  • Coperating with the platen 11 are the a circle to conform with the circular printing types 12, the latter being secured to and forming a part of the composite type bars which are desi ated generally by the reference character 72, and are arranged in a type bar frame on the upper side of. the machine above the main frame 10, the arrangement of the type bars being preferably in the form of a segment of a circle with the longitudinal axis of each of the type bars 12 intersecting the printing surface of the platen at the normal printing point which is designated by the reference character l1", (Figs. 1 and 2).
  • the composite type bars 12 preferably consist of the type members 12 extending vertically and provided with three printing characters as designated by the reference characters 12", 12c and 12d.
  • the type members 12 are each secured to the body portion of the type bar which is designated generally by the reference character 12e, Fig. 2, and consists preferably of an irregular metal stamping having a main body portion in the general form of a rectangle.- the central part of the body portion being cut away for lightness.
  • the body portion 12e of the type bar has an extension from the rectangular portion which is designated in Fig. 2 by the ref erence character 12, the latter being in the form of a toothed rack bar. the teeth being designated by the reference character 12g.
  • the toothed rack bar portion 12 of the type bar 12 is normally in engagement with a segmental toothed bell crank lever designated generally by the reference character 13, the teeth of the ⁇ grncnt or gear thereon being designated at 13a.
  • the rack portion 12f of the type bar therefore rests normally upon the toothed segmental poriion'or gear of the bell crank lever 13 and is carried thereby, while the forward end ot' the type bar is carried upon the surface of a plate 14, which is supported upon the trame 15 which carries the type bar action.
  • the lower extremity of the forward cud of the type bar has frictional engage ment with the top surface of the plate 1L but is guided in its reciprocating increment to and from the printing surface of the platen in order to insure contact at the nord mal printing point by reason -of the fact that the separated body portions 12C and 16a of the type bar lare guidedin vertical slots in a comb or guide member which is designated generally bythe reference character 516 and is secured as indicated by the screws 17-to the type bar action supporting frame 15 (see Fig. 2).
  • the slotted como or guide member 16 is curved in the are di!
  • FIG. 1 the printing faces of each of the type are so constructed that the printing face of each type is arranged parallel with the printing face of the platen re* gardless of the angle at which the type bar and the type thereon moves to engage the
  • the type members 12a are caused to extend some distance above the 11p-per branch 12e of the type bar in order to form a suitable portion for contact with the cushioning member 18 as shown' in both Figs. 1 and 2.
  • This cushion may be of felt or other suitable cush-A ioning material and secured to the concavely curved face of the plate 19 securedtfas indi ⁇ cated by, screws 20 to the upper portion 21 of the type bar action frame.
  • Each of the type bar members 12 will therefore normally rest against the cushioning part 18 which will also absorb any tendency to vibration on the part of the type bar action upon the return or retraction of the type bar action after contact with the printing face of the platen.
  • At the front side of the curved frame 21 I secure by suitable screws as indicated at an additional type bar guide plate 23, a portion of which is shown in detail in Fig. 3.
  • This guide plate 23 is of special construction being notched as indicated at 23d to receive a cooperating portion at the upper edge of each of the type bars 12.
  • the body portions 1)/i o1 the type bars Which are provided with the toothed rack portions .12g have attached to them on each side by means of rivets 12 spaced plates 12.
  • the plates 12 are secured to the rack portions 12f of the type bars so that along the upper edge of the type bar about one sixteenth of an inch of the body of the type bar meinber 12t projects above the upper edges of the side plates 12.
  • This projection of the type bar member 12t is preferably just a trile more than the depth of theslots or notches 23 in the guide curved member 23 so that the member 12f only engages with the plate and the side members of .the type bar clear the guide Piate.
  • the plates 121 are preferably allowed to extend a short distame below the'lowe' extremities of the teeth 12g of the rack oni thel type bar.
  • the segmental toothed portion of theisub-lever or bell crank' 13 having the teeth 13 for co'iperaiing with the teeth of the type bar is also provided with curved side plates lli il i3 5 ⁇ toothed portion, these beinglikewise sei-ined if?" one on each side of the segmental to t ie hell crank lever by rivets 131
  • the longitudinal movable tipe hare 12 will have a cooperating suhlei'er or gear segment 13 as .illustrated in lfigs. and 3.
  • the gear Segments or suhlev rs'l are arranged in the are of a eirrle heini# supported in the slotted segment traine 3U, which is secured b screws 31 to the front curved edge of t e type har netion support ing frame 15.
  • the gear ments or sub-.lewin 13 are Seenred on the oon'nnon curved pivot pin or wire 32 in the augment 50.
  • Links 33 connect arms: 13 of the sah-lever or segments 13 with key levers :.lwhich are pivoted at 35 to the nniin frame l0.
  • rharinfteiz 4Z is the usual spinto lmr ronneeteii through levert; i3 with the rai-ringe escapenient of the machine .in :he usual or any desired manner.; o) isn rocering plate which may he e-:nii'i-iniilnlzif arranged as a Shield over the top oi the machine covering; the type hui' artions to any extent desired ⁇ and al; the seine line may ne utilized for applyingr the. nznne ol' tho machine thereto or for ornamental purposes.
  • the type hars being arranged rarvliallyv in i common plane and having suitable guiding derives whereby upon the reriproiation of each ot' the type bars the printingr fave thereof will intersect a cornn'ion printing poiuh pivoted key levers and pivoted sub-levers corresponding with each ol3 the said type hars, the said sub-levers being enfh provided with a toothed segnii-nml portion engaging the toothed portion of the type hairs means for connecting each of the iype bers with its corresponding idx-lever whereby the actuation of the key lnwr will :nove the sub-lever and the type liar.

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Description

M. GAHBEL.
YFE WHITIM MACHINE.
APPUCAUQN mw MM2. 191s.
2 SHEETSHSHEET 1.
' [NMEA/Tok.
. o i; y L @i fm.
UNITED STATISHIIENT OFFICE.
MAX GARBEL, CHICAGO, ILLINOIS.
TYPE-WRITING MACHINE.
Application filed May 2, 1918.
To atl 'whom it 'may concern.'
Be it known that I ,MAX limoni., a citizen of the United States, residing at Chicago,
` in the County of Cook and State of Illinois,
have invented certain new and useful Im provements in Type-Vlriting Machines, of whichthe following is a iull, clear, and exs act description. l
The invention relates to improvement-s in a typewriting machine. and particplady to an improved form of type har action for a typewriting machine. i
It is the primary object of the invention to provide an improved forml of type bar action adapted for use in small writing machines of a compact form commonly called portable machines. Such machines diifer in construction from. the standard otiice ma-l chines in that it is desirable that the mechanism be so arranged that the machine will occupy a minimum amount of space when it is desired to carry the same vas baggage by travelers, persons engaged in milirtary service and the like.
The invention is applicable to typebar no tions in which the typebars reciprocate, as distinguished trom actions in which the typebars are pivoted. Heretofore typebars of the' reciprocating type have been operated from their corresponding key levers through intermediate levers and link connections or sliding connections. Sliding connections result in a sluggish action due to friction and the difii lllty of properly lubricating the slides. Ixntermediate levers, or sub1-levers connected with reciprocating typebars through link or sliding connections Ihaw commonly necessitated the use of sub-levers or intermediate levers of considenable length in order to get the nca'essary degree of throw to properly operate the typebars. This has resulted in a machine of considerable height because of the necessary separation of key levers and typebais to accommodate the intermediate lever mechanism.
It is an object of the invention to provide a segmental gear connection with each of the type-bars, the segmental gear being actuated by suitable connection with the corresponding" `key levers whereby the maximum degree of throw may be imparted to the typebars from the key levers with a minimum degree of normal separation hetween type-bar and key lever, resulting in a compact machine. i
Specification of Letters Patent.
Patented June 3, 1919.
semi No, 232,016.
It is a further object ci' une invention t0 provide a form, ot' rolling;r suppont and guide or the tail end of the ty ple-bar, thus making it possible to dispense with the usual lower tail end guides on recipmcating type bar constructions and making it possible to use a much shorter ty pe-bar, and still obtain the maximum amount of throw, while at the same time securingr a. decided advantage not only in conzpactness but also in ease of 0peration due to the elimination of unnecessary friction ofA all sliding connections which are dispensed with in my construction.
Other objects of the invention will appear from the followingr specification which is direc-ted to the preferred embodiment of my invention as shown in the drawings forming a part oi' the speciiication and pointed oult more particularly in the appended claims.
In the said d awings Figure 1 is a top plan view showingr the arrangement of the parts aasociated with the type bar action of my machine with parte of the machine main fname and platen broken away.
Figi. is a' detail sectional View through the machine taken approximately on line .-E--2, oi Fig". l. In tshls view parts of the carriage for support-ing the platen and for shifting same are omitted as the same forms no part ot' the invention.
Fig. is a broken detail sectional view illustrating the constrlu'tion of the type har action, the view being taken approximately on line 3-3 of Fig. 2.
The invention is preferably incorporated into a construction havingr a main supporting frame of special and irregular construction as indicated by the reference character l0. This frame is preferably of integral constrlnztion and the side portions of the frame are designated by the reference character 103, the back side of Ithe frame at 10b and the front at l0". The frame is providedwith four or more downwardly eX- tending projmtions or legs 10d by which the machine may be supported upon a fiat surface as upon a table top. 11 designates generally the platen of the ordinary cylindrical form. It will be understood that the platen will be supported in the ordinary manner upon a carriage of any desired construction mounted upon the main frame d0.. Nocerriageis shown in the drawingas this foms no part of the present invention.
Coperating with the platen 11 are the a circle to conform with the circular printing types 12, the latter being secured to and forming a part of the composite type bars which are desi ated generally by the reference character 72, and are arranged in a type bar frame on the upper side of. the machine above the main frame 10, the arrangement of the type bars being preferably in the form of a segment of a circle with the longitudinal axis of each of the type bars 12 intersecting the printing surface of the platen at the normal printing point which is designated by the reference character l1", (Figs. 1 and 2). The composite type bars 12 preferably consist of the type members 12 extending vertically and provided with three printing characters as designated by the reference characters 12", 12c and 12d. The type members 12 are each secured to the body portion of the type bar which is designated generally by the reference character 12e, Fig. 2, and consists preferably of an irregular metal stamping having a main body portion in the general form of a rectangle.- the central part of the body portion being cut away for lightness. The body portion 12e of the type bar has an extension from the rectangular portion which is designated in Fig. 2 by the ref erence character 12, the latter being in the form of a toothed rack bar. the teeth being designated by the reference character 12g. The toothed rack bar portion 12 of the type bar 12 is normally in engagement with a segmental toothed bell crank lever designated generally by the reference character 13, the teeth of the `grncnt or gear thereon being designated at 13a. The rack portion 12f of the type bar therefore rests normally upon the toothed segmental poriion'or gear of the bell crank lever 13 and is carried thereby, while the forward end ot' the type bar is carried upon the surface of a plate 14, which is supported upon the trame 15 which carries the type bar action. That is to say the lower extremity of the forward cud of the type bar has frictional engage ment with the top surface of the plate 1L but is guided in its reciprocating increment to and from the printing surface of the platen in order to insure contact at the nord mal printing point by reason -of the fact that the separated body portions 12C and 16a of the type bar lare guidedin vertical slots in a comb or guide member which is designated generally bythe reference character 516 and is secured as indicated by the screws 17-to the type bar action supporting frame 15 (see Fig. 2). The slotted como or guide member 16 is curved in the are di! L1- rangement of the type bar actions by which cach of the printing faces tlr type bars are caused to impinge upon or strike the normal printing point upon the surface of the platen. It should be here noted as wil! Yplaten at the normal printing point.
view ofFig. 1 that the printing faces of each of the type are so constructed that the printing face of each type is arranged parallel with the printing face of the platen re* gardless of the angle at which the type bar and the type thereon moves to engage the The type members 12a are caused to extend some distance above the 11p-per branch 12e of the type bar in order to form a suitable portion for contact with the cushioning member 18 as shown' in both Figs. 1 and 2. This cushion may be of felt or other suitable cush-A ioning material and secured to the concavely curved face of the plate 19 securedtfas indi` cated by, screws 20 to the upper portion 21 of the type bar action frame. Each of the type bar members 12 will therefore normally rest against the cushioning part 18 which will also absorb any tendency to vibration on the part of the type bar action upon the return or retraction of the type bar action after contact with the printing face of the platen.
I prefer to extend the lower edge of the plate 19 below the frame 21 as shown in Fig. 2 thereby forming an'upper retaining ledge for coperating with the upper sur face or edges of the type bars 12e for preventing any tendency on the part of the type bar to rise at the forward or printing end. At the front side of the curved frame 21 I secure by suitable screws as indicated at an additional type bar guide plate 23, a portion of which is shown in detail in Fig. 3. This guide plate 23 is of special construction being notched as indicated at 23d to receive a cooperating portion at the upper edge of each of the type bars 12. The body portions 1)/i o1 the type bars Which are provided with the toothed rack portions .12g have attached to them on each side by means of rivets 12 spaced plates 12. The plates 12 are secured to the rack portions 12f of the type bars so that along the upper edge of the type bar about one sixteenth of an inch of the body of the type bar meinber 12t projects above the upper edges of the side plates 12. This projection of the type bar member 12t is preferably just a trile more than the depth of theslots or notches 23 in the guide curved member 23 so that the member 12f only engages with the plate and the side members of .the type bar clear the guide Piate. The plates 121 are preferably allowed to extend a short distame below the'lowe' extremities of the teeth 12g of the rack oni thel type bar. The segmental toothed portion of theisub-lever or bell crank' 13 having the teeth 13 for co'iperaiing with the teeth of the type bar is also provided with curved side plates lli il i3 5 `toothed portion, these beinglikewise sei-ined if?" one on each side of the segmental to t ie hell crank lever by rivets 131 The :o rane nii-nl, ol the plates 13" upon the euhli "ai il together with the plates 121 upon im l), pe liars, it will be seen, is sueh that those ptites are normally in engagement with nach. other throughout all relative nnwenient of the parts so that there is no teni. f y .for the teeth of the type loer molteY to ride upon. the teeth of the segments ot' the bell crank or sub-levers 13 as the weight ef the type bars Will be carried upon the ..furved upper surface of the plates 18, thus ali'ording a rollingr action and avoiding frirtion einen proper meshing of the teeth4 of ihn gears; will be insured at :ill times sfithout any tendency for the teeth of the gears by reason of Wear or any shifting of relation to get out of proper mesh, thus insuring uniformity of cooperation between the Vparte and easy action at all times throughinit the life of the machine since the plates l and 13b may obviously be construeted so as to preclude the possibility of an); considerable variation in the mesh- .ing of the gears; due to wear of the parts. Obviously earh oi the longitudinal movable tipe hare 12 will have a cooperating suhlei'er or gear segment 13 as .illustrated in lfigs. and 3. The gear Segments or suhlev rs'l are arranged in the are of a eirrle heini# supported in the slotted segment traine 3U, which is secured b screws 31 to the front curved edge of t e type har netion support ing frame 15. The gear ments or sub-.lewin 13 are Seenred on the oon'nnon curved pivot pin or wire 32 in the augment 50. Links 33 connect arms: 13 of the sah-lever or segments 13 with key levers :.lwhich are pivoted at 35 to the nniin frame l0.
'll will he seen that when an operator depreswe one of the keys 34a and the corresponding hey lever 34 the pull of the linx 3:5 will rook the sub-lever onsegment 13 to ith@ position Shown in dotted lines in Fig, which will result in the longitudinal inm'em it of the type bar l2 to the posiiion et' the type bar also shown in dotted linee in Fig. *2 Where the printing 'face 12e oi' the type bar will Contact with the printing point lla on the platen. The key levers :il ,ne held in their normal or elevated position shown in full lines in Fig. 2 b'T ine-ans oi suitable compression springs 3 interposed between the levers and the supporting` bnr shown in section in Fig. 2 as anat-hed to the main frame 10. The springs 3T are nnide adjustable by means of Screws and the compression power of the springsi muy he adjusted to return the type bar and its operating mechanism to the normal or rtrneted position as shown in full lines e Fig. :l: after being operatedH t0 the printt i-n-apei'nent in thiI usual uniuner in innehine-` ol thin. rharinfteiz 4Z .is the usual spinto lmr ronneeteii through levert; i3 with the rai-ringe escapenient of the machine .in :he usual or any desired manner.; o) isn rocering plate which may he e-:nii'i-iniilnlzif arranged as a Shield over the top oi the machine covering; the type hui' artions to any extent desired` and al; the seine linie may ne utilized for applyingr the. nznne ol' tho machine thereto or for ornamental purposes.
Vith the iinprm'od forni of type bar aetion herein shown, described and claimed I :im enabled to construct a machine having the ealnihilitiee of standard full sized machines both as to euse of operation and reperiti);` l r doing;v the niost ditlieult work thin is obtainable in any of the stand-.nd sized machines and at the saine time keeping the size of the machine Within the liniits where it will o-f-rnpy one third or even less than one third oi' the space ordinarily oeenpieil inf .ndinai'y typewriting inaehines ol ,standard deign.
ln ordeil that [in inwntion iniffht he iindei-stood thiJ detail'- oi' they preferred einhodinnni here neen .set l'orlh hut it is not desired to he limited to the exart details4 of the type liar .ottimi fihoifn for it will lle appare-,nt that peix;om :drilled in the art may rar): the eonslrnwion within rertain limits without departing troni the purpose and spirit of the intention.
l rlnini:
l. ln a type hai' action for typewriting machines, the eoinhination with a longitudinally reeiprooahle type Imil provided with a raehy eonsisting of a phi aliiy of leeth conserutively and horizontally' arranged along one side of the iype liar, :i lever, a pivoted 1sidi-lever proiided with n Curved toothed efgfinentnl poi-lion engaging the teeth oil thi rark on the type liar, a stationurliv guide :nl iaroni the toothed portion of the type liar for preivning lsiteral movement thereof iiiperating means on the silhlever and typo har mijner-nt the engaging portions thereof for preventing:` lateral relative movement between the said sub-level' and typel har. and means 'for operatively eonnerting the hey lever with the mili-lever.
l n a type har aetion for tvpewriting inaehines. thi: ernnhination with a longitudinally nnn'nhle E vpe, har provided with a. toothed rack portion. a guide plete secured to the toothed ret-.k portion of the type bal;
levers; or Ille pinposo oi' operating,
adjar-ni the imei: tie-wein a pivoted key lever. a pirori-:i Julrhier provide-il with :i curved toothed seguira portion @menging liln` type lim', n 5 rnrved plate :arurod to the toothed seg:
mental portion nl' the piiot'ud slib-lever alinindient inn we l: i i #mi iii-ine' provided with n rmi. ,niifwl to foiiperato ith the fniov g o iin' toothed will l0 izuli tuition iii' i i and nieuw-i for vnunet-ting' the ion' l 'ohh thisub-lever for :icllalingr th iva' and the 'type liar upon thtl niovf'inroi o: .he lief; lever.
ii. in :i lor tvpewriting 25 iozarhines., vf a longitudinaiy nio-r piovi'iled with a 'rai-li porti l ensured to the {ypeiizi on irirh fidi iin* knid toothed portion thereof :ili-i:iniinll v iilelosing the teeth 'izliin wmfloiinrfl therebetwrei.. a pivotril siiwrl viliprovided with a toothed svginternal wzinn it *ii il? if lillifl w lnli type imi1 iiimwi ,troie plaies serait-eil on opposite sides of ila toothed segmental por lion of the miniem and having; curved sliri'uwos ada` in- `mide platters of tlm tri o rigrnlalv the meshing oi" iw veil itpiliar and 3G sul@ lievi-i'. :will inra im ronniwl'iug the he):
luier oi'lii ll=g lziti'r :linl iler ilrr liet lmri.
i lo a I ipe Tiwy :eli-oi tor E i'peu'riiing nfs the ruinloiwiion with a loigitu-liprovided with :l pivoieil liov luier, l a; ith a curved en; ning the i inn: means 'for for initiating the r the control of rennen-ii t iii ot' the irifi; i`
nonnen-tiny il-fe nie thv sillrlever for indiening the t d the tipe hai' ihroiin'l; ihr han' :e het* ieen :ind wenn: for ilrirrn f meshing; of the teeth nl' tile ivpr :and the teeth of the cui-veli tinth-ml s 'navntzii portion of the sith-lever from; fr i ,i pair oi' spaced plates seeiired ailqizueni ihr :c fl portion of the type intr and :i pair oi' iiiperating eurierl 60 pareil plntes suture-l adjacent vthe toothed sri-:'lnentril imrtiow1 ,if llaI olli-leien 5'. In a type bar action for typewriting` `tion in engagement with the under side of.
the toothed rack portion of the type bar,
and roperating means on the type bal' andtlul toc'iihed segmental portion of the sublever whereby to afford a rolling support lor the toothed end of the rack bar, and means for operahly connecting the key lever with the sub-lever.
(3. In a type bar action for typewriting machines the combination with a, plurality of longitudinally reriprocnble typebars each provided with toothed racks consisting ot a plurality of teeth consecutively and horizontallyI arranged along one side of the typo har. the type hars being arranged rarvliallyv in i common plane and having suitable guiding derives whereby upon the reriproiation of each ot' the type bars the printingr fave thereof will intersect a cornn'ion printing poiuh pivoted key levers and pivoted sub-levers corresponding with each ol3 the said type hars, the said sub-levers being enfh provided with a toothed segnii-nml portion engaging the toothed portion of the type hairs means for connecting each of the iype bers with its corresponding idx-lever whereby the actuation of the key lnwr will :nove the sub-lever and the type liar. means providing a sliding support for thtI longitudinally reciproceble type bars near their ends provided with type, and c0- opornting' ineens on the said toothed segmental portions ofthe sub-levers and the toothed rack portions of the type bars whereby the toothed ends of the type bars have a rolling engagement with and are carried by the toothed segmental portions of the sulrlevere.
In testimony whereof I have signed my naine to this specification, in the presence ot' two subscribing witnesses on this 26th day ofA April, A. D. 1918.
MAX GARBEL.
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