US2333801A - Type cleaning implement - Google Patents

Description

Nov. 9, 1943. w. H. ,Lows'roN TYPE CLEANING IMILEMENT Filed Jan. 1s, 1941 'llllEllll,lll-lll.

INVENTOR WALTER H. 0 570A/ ATTORNEY Va clean" "condition vvithoutfu This invention relatesto devicesV l for cleaning f and lvmaiis-1 """ningthe *typel in f itsevctfcleaning i -a preferred form of "a type-cleaning implement.

uids.

The ibo-namen methodfefffeieanmgcthe,type er typewritersis to'apply' al cleaningffluidlwith a vewillustratingftheessociation "viwgiparuyfmoken away; @if

piece of cloth or abrush-irh1stmethod is at 'A leaning: eiinerleofa-tnjgimpiemen hewn l best a messyfan'd odorifroxs task, frequently Plastic-rubberen aisqbeeniused rorciea'ning me, typewriter ftype, butjfthisffhasflmanydisdvan-- tages in that agreasyrilm is left on the type after use', which serves ut collect and hold dustv trateda'nfimple men body and grime. Y Also the plastic Y rubber requires l0, saidzbody being preferably formed of a] makneadingafter each use,` thus causing soiling of l5 terial such as sponge rubber orany material the fingers, etc. c which is compressible, yieldable and self-sus- It has also been suggested that steell or other taining.` This body 1 isprovided with a handle metallic Wire brushes be used, but while these such as II embedded therein. `This handle', illusmay be useful in digging out of the type any stentrated as projecting from the top narrow end of cil wax that may have accumulated they, neverthe body, maygbe secured at a midpoint of the theless, do not carry off the ribbon ink and they wider side of said body, if' desired.

are apt to scratch the fine surfaces of the type `.As herein contemplated, the body I0 is proand thus impair their eicency. c vided with a cover member I2 which is also Because of the disadvantages of cleaning typec formed of a rubber material so as to be yieldwriter type with cleaning fluids, it is usually inable and .pliable and have the quality or charfrequently done. In.` fact, if. done frequently;v U acteristics of being capable of adsorbng ribbon the felt buffers underlying the type barsare apt ink. Asillustrated, this cover may be cemented to become saturatedwith the liquid and thus the and thus permanently secured to the body, altype bed is thrown out of' line since saturated though an interchangeable cover maybe profelt impairs the bufng qualities of ,the` felt. vided-by merely wrapping the same aboutA the Hence', liquid cleaningof the type is :only done b0dy,"and securing it in place by suitable fastenfrom timeto time, usually monthly; but in the ing means such as pins, clips and the like. The meantime, the type becomes dirtier from dayto cover may also be provided with a fabricv backday and accumulates so much ink and grime ing or lining. i that unless cleaned, the type will not make a The surface of the cover member l2 isV preferclean and sharp impression in use.- c ably provided with a multiplicity of cleaningpro-` While ordinarily there jis no problem in keep- "jections I3. '.[fhese` projections are preferably,

ing the visible or accessible parts of a typewriter ,though not necessarily, uniformly and regularly clean, there, nevertheless, is a serious problem spaced to provide the entire surface'of the cover, to keep clean and free from ink and accumula- 40 with cleaning elements, each adapted to engage tions, the most important part ofthe typewriter, in a wiping manner, thetype of a standard typethat is its type. writer. It has been found that these projections Recognizing the above, this invention has for should preferably be cylindrical, though obviousits primary object the provision of a type cleanly they may be of any shape; that their height ing implement which will clean and polish type may be anywhere from equal to their diameter, to without the use of liquid, in a dry manner withvequal to about twice their diameter, and that their out injury to said type, and which can convendiameter should be related to the size of the type iently be used without effort ,and in a fewsecof a standard typewriter. Thus, it has `been onds time. l found that if-the diameter of these projections l 3 The foregoing objects and other objects, feais not greater than the Width ofthe printing surtures and advantages will become more clearly i face of the average letter, Aa projection would apparent from the following detailed description readily and Veasily enter certain of the openings, of the accompanying drawing in which a prein the type, as for instance the letters o, c, ferred form of the invention as at present cona, `g, and s.

ceived is ilustrated. 55. While the projections have been described as being on a lseparate coverA member, it will be understood that such covery member may be eliminated and that the'projections may be integral with the compressible body member.

few seconds each morning, the typist may have the equivalent of a new machine daily, since the previous days accumulations are readily re`y moved from the type; that the implement'may be used to completely clean and Polish the type of even a used typewritery and may then be used to keep the type clean and free of ink by frequent, at least daily, applications of the implement across the type. It is evident that the ease were mad e too,long, `they wouldl merely flex durl0 withwhich thertype canbekeptclean by the use ing thermovement of the implementj across vthe type without entering theopenings thereof, and

- therefore, be unable to have their ends reachT deep enough in said openings for cleaning there?AM of. If on the other hand said projections/were@'1.5:'

too short, they would not .be long enough toreach `the surface `of the type block-holding thefclar'- acter, with similar undesirable results. i.

thoroughly clean and would be given 4ahign-pol-l ish. I1; will 'be noted` thaapeeause of the co`m may Vbe exerted. during ther ,cleaningsoperation Without deleteriously 'affecting the typeinscfaras tofcause weer.,with assureneethetlthe proieef tion Will reach the base surface I5 as seeninFigs. Sandi.` f

o t. 1 Y 3o It iS also eVidentiihat-e'brandnew typewriter in diameter-andi.approximately s? hieh-.. g

' presents the ideal condition for clean, sharp typing, ,and that; ifv themplement Werefufsed' fer e of this irriplefn'ielilt and Vthe'"improvement thus resuming, makes it desirame to every typist.

\ From the foregoing it may be seen thata sim,- `ple,'inexpensive and highly emcient implement forclafiingtype, has been provided.' Despite its `simple nature,.`i t is also evident that the inven`l tion maybe practiced in other ways, without de-y ,.1.: `partingfrom the spirit and scope thereof as hereg It-is evidentthen that a few strokes `of the implement across thevtype would cause'a-great 26 numbery of projections to engageanlwipeztheitype Y kwith the apparent'resultthat-saidtypei Wouldgbe inafter claimed. v

each of said projetionspeing. approximately 11g' Whai-,"Iclaim'as new and desire tosecure by y Letters Patentse mplement eeI mp'risineA emile l a c ompressiblefbodysecured to said handlefsaid fj f v body having substantially parallel sides,` thezedg'e pressibility of-,thejbodyv II), onsiderablepressure 25r 'of said body.oppositethehandlebeingwrounded,

a pliableecoverpn-Seid Cempreseible .bedr ever- .,lying saidparallel sidesand the rounded edge,

,the ends of said .body` being uncovered, multiplicity ofintegralprojections on said pliable cover,

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