US838328A

US838328A - Type-writer machine.

Info

Publication number: US838328A
Application number: US30966106A
Authority: US
Inventors: William F Helmond
Original assignee: Underwood Typewriter Co
Current assignee: Underwood Typewriter Co
Priority date: 1906-04-03
Filing date: 1906-04-03
Publication date: 1906-12-11
Anticipated expiration: 1923-12-11

Description

PATENTED DEC. 11, 1906.

qr [HI/@n/a) EyJ/f'orncz? d w. F. HELMOND. TYPE WRITING MACHINE. APPLICATION FILED APR 3 1906 'M'faesas grad/z UNITED STATES PATENT OFFICE.

WILLIAM F. HELMOND, OF HARTFORD, CONNECTICUT, ASSIGNOR TO UN DERWOQD TYPEWRITER COMPANY, OF NEW YORK, N. Y., A COR- PORATION OF NEW J ERSEY.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Dec. 11 1906.

Application filed April 3, 1906. Serial No. 309.661.

To all whom it may concern.-

Be it known that I, WILLIAM F. HELMOND,

- ens of type-writing machines.

' aroun It is often desired to write close to the top and bottom edges of a sheet. This is usually found impracticable, because of the bulging of the pa 'er, due to the bending of the same c t e platen.

The object of the invention is to overcome this difliculty and to rovide devices which may be readily ap lied to existing machines, especially those 0 the Underwood frontstrike type, which will hold the entire top edge and the entire bottom edge of the paper against the platen, so as to permit writing very close to the edges, this bein especially desirable at the bottom edge of the pa er.

According to the invention a num er of clips may be sprung u on the front roll-carrying rod of said mac he at suitable intervals along the rod to bear yieldingly against the 1platen, close to the printing-line thereon, so t at a line may be written along the very bottom edge of the paper. These. clips are preferably formed of very thin springy sheet metal and are provided with clasps or loops which are s rung upon the rod and also with fingers Whic engage other rods upon the machine, so as to produce the proper ressure of the paper-guiding fingers upon t e platen. The clips are intended 'princi ally to be applied'to existing machines wit out alteration of the latter, and may be readily slipped onto or ofi from themachine. 1 r

In the accompanying drawings, Figure 1 is a front-elevation of an Underwood typewhen t e upper-case types are printing.

writing machine, showing my improvements a plied thereto; Fig. 2 is a sectional side e evation. Fig. 3 is an enlarged perspective -view illustrating the relation of the papere clips to the severalrods of the usual roller mechanism. Fig. 4 shows how the paperguidin fingers clear the lower-case types In said machine the platen 1 is provided with an axle 2, mounted in a platen-frame 3, the latter comprising a paper-shelf 4 in rear of the platen and continuing at 5 in the form of a plate or fingers extending around the under side of the latenin front thereof, said fingers bein in icated at 6. Front and rear pressure-r01 s 7 and 8 are provided beneath the platen, and adjustable aper-guides 9 control the paper as it rises a ove the printing-point.

The front rolls 7 are mounted at intervals upon a rod 10, carried or controlled by arms 11, said arms being pressed by s rings 12 toward the platen, whereby the rolls are caused to bear with the required re'ssure upon the latter. Upon said rod 10 secure a series of clips, (designated generally as 13.) Each clip may be formed of very thin and extremely flexible sheet-steel or other metal. At the middle of the clip the metal is folded back at 14 and 15and between the folds is curved to form a loop 16. This loop or-eye extends considerably more than half-way around the rod 10, but the metal is sufficiently flexible to permit the loop to open for attaching and detac hing the clip. Said loop serves as a bearing for a pivotal action of the clip upon the rod 10. Upwardly from said loop, which is formed transversely of the clip,extend two diverging paper-guiding fingers 17,

reaching above the guides 6 and almost to the printing-line seen at 18, so as to hold the lower edge of the sheet tightly against the platen until said edge has advanced t'oo'far for receiving impressions from the types, the latter being mounted upon type-bars 19. Owing to the extreme thinness of the metal it clears .the lowercase types- 20, Fig. 4, while the uppercase.types 21 are printing. Said types when printing are substantially in the same vertical plane and the platen in said machine shifts up and down to enable either set of types to print. shiftedup, as at Fig. 4, there is a small space When the platen isbetween the lower-case types and the laten but this space'is suflicient to receive t e thin paper-clip 17 sothat it will not be struck by the lower-case type '20. Brojectmg down- -wardly from said loop is a long finger 22,'

whose lower end lies in rear of a rod 23- and bears against the rear side of the latte r. Be-

tween the rods 23 and is a third .rod 24,

and then the loops may be sprung upon the rod 10, so that the machine is easily provided with these guides, the latter being mounted upon the extreme ends of the rod 10 and also between the rolls 7, which are placed at intervals along the rod.

The rolls 7 are released by means of a key 25, connected by a-link 26 to the shaft 23, which is a rock-shaft and has the usual cam ortions 27 to engage the arms28, which are integral with the arms 11, whereby the latter are dropped to release the rolls 7, the fixed rod or shaft 24 being the axis for such rock ing motion. the arms 11 and the rod 10 swing 'away from the platen, together with the pressure-rolls 7 and the paper-clips 13, the spring-fingers 22 becoming relaxed,'owing to the tendency of their tips to swing backwardly away from the rod 23. When the key 25 is restored to normal position, the rod 10 is brought up toward the platen and the spring-fingers 22 again flexed about the rod 24, thereby causing the fingers 17 to bear against the platen.

If desired, the fingers 22 may be slightly bowed, as at 22*, to bear against collars 29, mounted upon the shaft 24.

Having thus described my invention, I claim' 1. In a type-writing machine having a platen, the combination of a paper-clip formed at one end with a finger bearing upon the platen, and having at the other end a flexible finger, a stationary support upon which said flexible finger bears, said clip having between said-fingers a transverse loop, and a rod upon which said transverse loop is detachabl'y sprung. r

2. Ina type-writing machine having a platen, the combination of a yielding flexible sheet-metal paper-clip having a loop, a rod upon which said loo is sprung, branched or diverging paper-gui ing fingers extending in one direction from said loop and bearing upon the platen, a finger extending in the opposite direction from said loop, and a support for the last-mentioned finger.

3. In a type-writing machine, the combination with a cylindrical platen, and papergru'iding means extending beneath and up in ont of the platen, of a rod in front of the platen, a series of aper-clips upon said rod, each clip having a cop sprung upon the rod, and a paper-guidin finger extending upwardly beyond sai paper-guiding means nearly to the printing-line, and also having a When the key 25 is depressed,

guiding means extending flexible sheet-metal spring-finger projecting downwardly from said loop, a second rod below the platen and in front of said spring-fingers and engaged by the latter, and a third rod between said rods and in rear of said spring-fingers, and serving as bearings for opposite sides of the latter, so that said springfingers are flexed, and the paper-guiding fingers caused tobear against the platen. 4.. In a type-writing machine, the comb1- nation with a cylindrical platen, and paperguiding means extending beneath and up in front of the platen, of a rod in front of the platen, a series of paper-clips upon said rod, each clip having, a sprin -loop engaging the rod, and a paper-guiding finger extending up- Wardly beyond said paperuiding means and to the printing-line, and a so having a flexible sheet metal spring finger projecting downwardly from said loop, a second rod below the platen and in front of said spring-fingers and engaged by the latter, anda third rod between said rods and in rear of said spring-fingers, and serving as bearings for the latter, so that said spring-fingers are flexed, and the paper-guiding fingers caused to bear against the platen release-arms being mounted upon said third rod and carrying said first rod, and pressurerolls being mounted upon said first rod, the construction being such that when the arms are moved to release the rolls, the pressure between the spring-fingers and the third rod is relieved, and the paper guiding fingers are moved away from the platen.

5. In a type-writing machine, the combination with a cylindrical laten, and paperguiding means extending eneath and up in front of the platen, of a rod in front of the platen, a series of paper-clips upon said rod, each clip having a spring-loop engaging the rod, and a paper -guiding finger extending upwardly beyond said paper-guiding means and to the printing-line, and also having a flexible sheet-metal spring-finger projecting downwardly from said loop, a second rod below the platen'and in front of said springfingers andengage'd by the latter, and a third rod between said rods aid in rear of said spring-fingers, and serving as bearings for the latter, so that said spring fingers are flexed, and the paper-guiding fingers caused to bear against the platen; said rolls being mounted at intervals along the first rod, and said clips being mounted both upon the extreme ends of said rod and be'tweenthe rolls. 6. In a type-writing machine, the combination with a cylindrical platen, and paper- .eneath and up in front of the platen, of a rod in front of the platen, a series of paper-clips upon said rod, each clip having a spring-loop engaging the rod, and a paper-guiding finger extending up wardly beyond said paperui'ding means and to the printingline, and a so having a flexi-- said first red, the construction being such that when. the arms are moved to release the rolls, the pressure between the spring-fingers and the third rod is relieved, and the paperguiding fingers are moved away from the platen; said paper-guiding fingers being sufficiently thin to clear the lower-case types when lying between the latter and the platen at the printing of capital types.

7. In a type-writing machine having a, platen, the combination with three sup orts.

in proximity to the platen, of a flexible s eetmetal paper-clip engaging all of said supports in succession and having a free end; said clip bearing in alternate directions against said supports, and the free end of the clip being caused by said supports to bear against the platen.

8. In a type-writing machine having a platen, the combination with three supports in proximity to the platen, of a flexible sheetmetal paper-clip enga ing all of said supports in succession an having a free end; said clip bearing in alternate directions against said supports, and the free end of the clip being caused by said supports to bear against the platen; said clip having a loop formed therein to fit upon one of said supports.

9. In a type-Writing machine having a platen, the combination with three rods in proximity to and parallel with the platen, of a flexible sheet-metal paper-cli engaging all of said rods in succession and having a free end; said clip bearing in alternate directions against said rods and the free end of the clip being caused by said rods to bear against the platen; said clip having a loop formed therein to fit detachably upon the rod which is nearest said free end.

10. In a type-writing machine having a platen, the combination with three supports in proximity to the platen, of a flexible sheetmetal paper.- clip engaging all of said supports in succession and having a free end; said clip bearing in alternate directions against said supports, and the free end of the clip being caused by said supports to bear against the platen; said clip having a loop formed therein to fit upon one of said supports; and means for moving one of said supports to release the clip from the platen.

11. In a type-writing machine having a platen and a rod in proximity thereto; the

,doWnwardly-exten ing combination of a flexible sheet-metal paperclip and a support; said clip formed at one end with a finger bearing upon the laten and having at the other end a finger W 'ch bears upon said support, and having between said fingers a loop which is sprung upon said rod;

the last-mentioned finger being sprung between the rod and the sup ort to cause the firstmentioned finger to hear against the platen.

12. In a type-Writing machine having a laten and a rod in proximity thereto and elow the printin '-l1ne on the platen, the

combination of a exible sheet-metal paper clip formed at one end with a finger bearing upon the 'platen, said fin er extending upwardly from said rod near y to the printingline, and supporting means engaging another fin er formed upon said cli and coeperating wit the rod to press the st finger against the platen.

13. In a type-Writing machine having a platen and a rod in proximity thereto and elow the printin -line on the platen, the combination of a exible sheet-metal pa erclip formed at one end with a finger to ear upon the. platen, said fin er extending upwardly from said rod near y to the printingline, and means en agin opposite sides of a finger formed upon said clip to flex the same and cooperating with the rod to press the first finger against the platen.

14. In a typewriting machine havin a laten and a rod in proximity thereto and eow the printing-line on the platen, the combination of a flexible sheet metal paper-clip formed at one end with a finger bearing upon the platen, said finger extending upwardly from said rod in juxtaposition to the printing-line, and supporting means'engaging another finger formed upon said clip and cooperating with the rod to ress the first finger against the laten; said c ip being formed between said ngers with a loop which is sprung upon said ro 15. In a type-writing machine having a platen and a rod in proximity thereto and below the printing-line on the platen, the combination of a flexible sheet-metal paperclip formed at one end with afinger to bear 'upon the platen, said finger extending upwardly from said rod nearly to the printingline, and means engaging another fin er formed upon said clip and cooperating with the rod to .press the first finger against the laten; said clip being formed between said fingers with a loo Which is detachably sprung upon said r0 and means for moving said rod away from the platen to release the cli p WILLIAM F. HELMON D. WVitnesses:

EDW. J. MANNING, EDWARD PJSTORY.

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