US1590632A

US1590632A - Typewriting machine

Info

Publication number: US1590632A
Application number: US675813A
Authority: US
Inventors: Alfred G F Kurowski
Original assignee: Underwood Typewriter Co
Current assignee: Underwood Typewriter Co
Priority date: 1923-11-20
Filing date: 1923-11-20
Publication date: 1926-06-29
Anticipated expiration: 1943-06-29

Description

A. G. F. KUROWSKI TYPEWRITING MACHINE June 29 1926.

Filed Nov. 2o. 192s sel Patented June 29, 1926.

Urrea srarss i 1,590,632 Partnr carica.

ALFRED Gr. F. KUROWSKI, OIE BROOKLYN, NEW YORK, ASSIGNOR T0 UNDERVOOD TYPEVVRETER COMPANY, 0F NEW YORK, N. Y., .A` CORPORATION 0F DELAWARE.

TYPEWRITING- MACHINE.

Application led November The invention relates to sound-deadening shoes for typewriting machines. A feature of the invention isthe provision of means, or a shaping of the shoe, such that the shoe may be equally applicable to machines of so-called standard construction and machines of special construction, such, for instance, as bookkeeping machines having platens and platen-carriages of greater length, size and weight than the platens and platen-carriages of the standard machines.

A A further feature of the invention is the construction of the shoe in two pieces, one to comprise the back and side walls, and the other to be a base-plate; and of means whereby the base-piece may he effectively secured to the other piece to form a strong and rigid unit therewith.

A further feature of the invention is a special shaping of the side wallsof the shoe to provide clearance for the carriage-runway supports of special machines, and to provide for access to mechanisms, such, for instance, as the ribbon-winding mechanism, so that such mechanisms may be operated without removal of the shoe.

Other features and advantages will hereinafter appear. y In the accompanying drawings, Figure 1 is a view, in side elevation, of the shoe; the same being shown applied to a standard typewriting machine, and one corner thereof being shown as broken away to show the manner in which the parts thereof are assembled.

Figure 2 is a view similar to Figure 1, except that the shoe is shown as applied to bookkeeping typewriting machine.y

Figure 3 is a view, in front elevation, of the right-hand end of the shoe and machine.

The shoe comprises a shell, preferably of pressed sheet-metal, and which is in two pieces. One piece, by means of a blanking and forming die, is bent to shape a back wall 10 and two side walls 11. The bends in this piece are so made that, when the shoe is on'the machine, the side walls 11 closely embrace theV sides of the main frame of the machine below the platen-carriage of the latter. The wall-portions 10 and 11 have embossments 22 and 23, stamped or pressed therein to form ribs to strengthen and add rigidity to the shoe. y.

20, 1923. SerialiNo. 675,813.

The other piece 12 forms the base of the machine. `For connecting the base-piece 12 to the first-mentioned piece, the base-piece has a flange 18 turned up from the rear edge thereof, and this flange is secured to the hack and side walls of the shoe by spotwelding. The base-piece 12 may also have side flanges similar to the iiange 13, whereby it may be welded to the side walls 11; or may have av series of tongues struck up from its edges for welding to the side and back walls. f

The back andside walls are lined by a strip or strips 14 of-sound-deadening material, such as felt, and the base-piece is lined by a thin sheet 15 of the same or similar sound-deadening material. For retaining the machine against forward displacement in the shoe, there is a flange lupturned from the front edge of the base-piece 12; and this fiange also preferably has an inner facing 17 of felt or like sound-deaden ing material. rlthe machine has front feet 18 and rear feet 19 on the bottom of the front and rear corner-posts 2O and 21, on each side of the machine. W'hen the machine is in place in the shoe, the front feet 18 will be set closely to the lining-piece V1'7 of the flange 16 on r the hase-plate. As shown in the drawings, the

feet

18 and 19 rest directly on the top of the base-plate.

Typewriting machines may be of so-called standard construction, that is to say, ofecenstruction 'adapted for ordinary and miscellaneous classes of work, or may beof other than so-called standard construction, as, for instance, such as have carriages of great length for holding large sheets, in the use of the machines for bookkeeping and other purposes. Although, in certain of the features, the machines may differ from one another, yet the hase-areas of the main frames of the machines used for these several purposes may be the same; so that the shoe above described may be fitted onto the main frame of any of such machines.

' Vhere, however, as in a bookkeeping machine, the platen and platen-carriage are of great length,-and, consequently, have much greater travel than the travel of the platen and ycarriage of the standard machine, thel rails on which the carriages travel on the main frame are of correspondingly great length, and, therefore, are ordinarily supported somewhat differently than the carriage-runway rails of the standard machine. Furthermore, the supportsl for the carriagerunways of a bookkeeping machine sustain ,a weight of carriage which may be muchy prises bracket on each. side. of the machine,

having a rib or ribs curved upward and latorally outward from the front cornerfposts of they main trame. These ribs may join suchl front corner-nosts at points which are below the normal and convenient position for the upper edge of the shoe. VSuch ribs are indicated in the drawings at 214 and 25.-

ln order that the shoe may be used not only on standard machines, but upon ,book-v keeping 'orV special machines such asV described, without interference of the. side walls ll with thev bracket-

ribs

24 and 25, and in order that the

ribs

24 and 25.. may' clear the upper edges of' the side walls 11, whatever the position of the platen-carriagm the upperA edgesof the side walls are cut down ori-shaped as at 26. The upper edges of thek walls lll are alsoV recessed at 2T toy pro.- Vide clearance for the support 28' for the rear carriagemail; and aierecessedat 29 to provide clearance for thesupport Vfor the platen-shift frame. i s

lin order to assure. clearance between the side walls ll and the carriage-supporting ribs or brackets, without too great a cutting of the walls 11 at 26, it may be advisablel to interposeheavy washers or blocks 33.: between the rubber feet 181 and i9- and lugs: 30', to whichv the feet are secured on the` main trame. The feet i8 and` 19 are ordinarily secured to the lugs by means obolts 3l, which have heads- 3'21 set intocountersinlrs in the base of the feet, and which extend upward through the feet and thready into the lugs: 30. lt is only necessary to. make: these boltso' suiiijcient length to provide for the interposition of the washers or blocks: 3.3.

For winding! or rewinding the ribbon of the typewriting' machine-,ja rotary sha-ft or spindleA is commonly provided. There a shoe such aszdiescribed is used, and in order that remonal of the. shoe may not be required for such winding and rewinding of the ribbon, one of the side walls 1l .of the shoe is: perforated to.- permit passage therethrough of' aY shaft to` connectWiththe shaft or spindle which winds the ribbon. This perforation is shown as a slot 34:l in-the right-han-dy wall-1l of the shoe. It' i-s a vertical slot, instead off a mere circular hole, in order to adaptthe shoe for nse-ind-iii'erently with a machine such as: the standard chine, which sits lowy in the shoe, and which, consequently, has its ribbon-winding shaft at one position, and a machinewhichis set higher in the shoe, as by means of the washtwopieces, onev piece being o. base platev and the otherpiece. being bent-around the edges of the base plate. to` form a baclrwall and two side walls of theshoe, the side walflsbeing spaced apart at such distance as closely toembrace the sidesgof the frame of the machine, the walls= of the shoe extending up.- wardly tov approximately the Vfront and overhanging parts of the, machine and the front of the walls of the shoe terminating at the *front* of the upright vframeof the -macillile, and` a sound deadeningylininghfor the se 2'.' A soundl deadening shoe for' a typewriting machine, which machine has anup rightt'rame and overhanging front and back parts, said shoe comprising a shellin two pieces, one piece being' a base plate havingy a flange o-r tongue turned up from the edge thereof, the other piece of theshoe. befing bent around the base Vpl-'ate pieceto form a back wall and `two side walls, the side walls being spaced apart at suchv distance as closely to embrace the sides of they frame of the machine, the side wallsv or the shoe extending upward-ly to approximately the front and back overhanging parts of the machine and the front. of Vthe side walls terminating at the front of the upright frame of' the machine,v the side and back wall piece of' the shoe being` fastened to the iiange or tongue of the base plate piece, and a sound deadening lining for the shell.

B. A sound deadening shoe, forJ a typewriting machine of the type that'has' an upright frame. and a fro-nt projecting portion, said shoe comprising a Shell in two pices, one piece being a base plate having a flange or yrib on the front edge thereof, the other piece of the shoe being benty around the, rear and sid-es offk the base piece to form: a back Vwall and two side walls, the side walls being` spaced apart at such distance Kas closely to embrace the sides of the frame ofthe machine and terminating at the yfrontl portion offsaidv frame, the flange or rib of' the front edge `of the base piece extending in front ofthe bottom portion of the.` typewriter .framey to 'retain the machine against for-ward displacement, andV a sound deadening lining for the shell.

el. A sound deadening shoe yfor a typewriting machine comprisingv va'sheet metal shell in two pieces, one piece being a base plate and the other piece being bent around the base plate to form a back wall and tl'ie two side walls, the side walls being embossed to form strengthening ribs, the base plate piece having a flange or tongue turned up from the edge thereof for attachment to the piece of the shell forming the side walls and back wall of the shoe, and a sound deadening lining for the shell. y

5. A sound deadening shoe for a typewriting machine comprising a sheet metal shell in two pieces, one piece being a base plate and the other piece being bent around the base plate to form a back wall and two side walls, the back wall and two side walls extending upwardly substantially the same distance throughout, the side walls having cutaway portions to accommodate the overhanging parts of the machine and terminating .in vertically extending front edges at the front of the typewriting frame7 the side and back wall being embossed to form strengthening ribs and the base plate having a flange upturned from the front edge thereof adapted to rest in front of the typewriter feet for retaining the machine against forward displacement, and a sound deadening lining for the shell.

ALFRED G. F. KUROWSKI.