US1425326A - Typewriting machine - Google Patents

Description

A. G. F. KUROWSKI.

TYPEWRITING MACHINE APPLICATIONIILED SEPT. 10. 1920.

v 42 5 32 Patented Aug. 8, 1922.

rrics.

ALFRED G. F, KUROWSKI, OF BROOKLYN, NEW YORK, ASSIGNOR T0 UNDERWOOD TYPEVVRITER COMPANY, OF NEW YORK, N. 'Y., A CORPORATION OF DELA- WARE.

TYPEWRITING MACHINE.

Specification of Letters Patent.

Patented Aug. 8, 1922.

Application filed September 10, 1920. Serial No. 409,323.

To all whom it may concern:

lie it known that I, ALFRED G. F. Knnow- SKI. a citizen of the United States. residing in Brooklyn Borough, in the county of Kings, city and State of New York, have invented certain new and useful Improvements in lypewriting Machines, of which the following is a specification.

This invention relates to typewriting machines in which a central type-guide is provided near the printing-point, and in which the types are provided with projections adapted to enter said guide which is usually placed in vertical alignment with the print-.

ing-point.

It'is necessary to bend the typebars, ad-

jacent the type-heads, to a greater degree the nearer they approach the ends of the usual segment in order that the types thereon may be in vertical alignment with the printing point on the platen. It has been found that the type-bars at the extreme ends of the segment had'to be bent to such a degree as to impair the effectiveness of the central guide.

provided auxiliary side-guides, as set forth in the a 'zplication of George W. Campbell, Serial h o 3%1928, filed September 24, 1919. The present invention provides a new structure for the type-guide. having a central and two auxiliary side-guides. and also pro-- vides means whereby the width of the guides may be adjusted, and the guides then locked.

The type-guide of the present invention may constitute a new article of manufacture comprising a base or attaching portion, a

central pair of spaced jaws rising there In addition to thecentral guide. there have, therefore, been guides and applied to the machine (only part of which is shown).

. Figure 2 is a front view'of the structure shown in Figure 1. I

l igure 8 shows the device dissociated into its various parts and disconnected from the machine. l 4

. Figure 1 is a front View .of a modified form looking in the direction of the arrow in Figure 5. v

Figure 5 is an end" view of the device shown in Figure 4.

Figure 6 is a detail section of one of the beveled-head adjuStingscreWs taken on the line 6-6 of Figure 'The machine comprises .the usual typebars 1.0, pivoted upon a fulcrum rod 11, and

operated by the usual =key-levers (not The type-bars operatein a seg-r shown.) ment 12, having radial guide-slots13 for the type-bars 10. Each of thetype-bars carries a type-block or, type-head 15 bearing (in this-instance) three types 16. In the ordinary typewriter,eachtypeblock has a projection 1? in line with the type and adapted to operate in a guide-slot of the type-guide. The lattercomprises a baseformingbracket or attaching portion 20 fixed to the segment by means of screws 21,.andconsists of an upstanding portion 2% having risers 25 providing jaws spaced apart to form a central guide-slot 18. The

risers end in lugs or flanges 19, forming lower j at s. each presenting a fiat upper surface inclinedsubstantially radially from the printing-point, which is slightly above the topsof the risers. the type striking against the platen 30. Each riseris provided in its outer side wthtapped holes- 31 and In addition the left-hand riser has a tapped hole 33, while the right-handriser has a corresponding clearance hole 34.

Adapted to be attached to the risers are side members 36" having inclined upper flanges 37, forming upper jaws, which run in the same direction and are of the same form as the flanges or lower aws 19 on the risers. The side members are adapted to be held in position so that' the upper flanges '37 are spaced above lower flanges 19 a distance equivalent to guide space 18, or

' slightly more than the thickness of the typebar, thereby to form "auxiliary guide-slots.

with holes 33 and 34. The attachment of lowering the side members.

and are the auxiliary guides. The width of these guides may be adjusted by raising or This is accomplished by loosening screws 43 and screwing beveled-head screws 42 in or out of notches 41 as desired to raise or lower the side members, since the latter ride upon the bevelof screws42. The side members are then looked in position by means of the screws l3. i

The adjustment'of the central guide is accomplished by means of a pair of screws, either otwhich may be the adjusting screw or the locking screw. A screw 45, extending loosened.

irom one jaw 25 to the other, passes through clearance hole 34 andengagesthe-screwthreads in the tapped hole 33. It will be seen that the action of this screw will be to draw the jaws together. The other screw is a beveled-head screw 50 (similar to the screw 62 shown enlarged in Figure 6) passing or entering between the jaws and having threaded engagement with the inlner walls of the jaws, the adjusting screw s45 and 50 being disposed transversely or at 40 right'angles to each other. It will be apparent from Figure 6 that upon entrance of the beveled head between the jaws the latter will be spread apart. The adjustment is accomplished as followszAssuming that the jaws are too. close together, the beveled-head screw 50 is screwed in to spread the jaws apart, the screw being first released .or When the desired opening has been obtained screw 45 is tightened and will prevent the jaws from moving out of this position, and so serves to lock the jaws in adjusted position. Assuming that the jaws are too far apart, screw is released,

H and screw 45 is screwed in until the jaws side members 36 and risers 25 integral. The.

above in connection with the adjustment of the auxiliary guides does not, therefore, depend upon movable side members. The risers carry both jaws of the auxiliary guides 60, while the central guide is the same as the Figures 1, 2 and 3 species. The adjustment of all of the guides is accomplished in the same manner as the central guide of the Figures 1, 2 and 3 device, i. e., by two screws, either one serving as the ad justment screw while the other is the looking screw. Screw 61 passes through a clearance hole in one jaw and engages a tapped hole in the other. Beveled-head screw 62 passes orenters between and engages the screw-threaded interior walls of the jaws. The ad'ustment of any of the guides is accomplis ed in the same manner as described central guide of Figures 1, 2 and 3.

The advantages of the auxiliary slots are suflicientlyset forth in the Campbell application previously referred to. Since the type-blocks 15 must strike the printingpoint in a vertical line, it is apparent that the type-blocks near the ends of the segment 12 must be turned on their type-bars 10 an increasingly greater degree as they approach the ends of the segment. Such bent type-bars tend to rattle or spring laterally and their efficiency is thus impaired. Theauxiliary guides obviate this objection.

Several keys at each end of the segment chine, as well as a more nearly perfect alignment and spacing of the printed characters along the printing llne on the platen,

thereby improving the quality of the work.

In the particular construction or embodiment of the invention illustrated in Figures 1 to 3, inclusive, of the drawings, and forming a new article of manufacture, the base or attaching portion 20, the upstanding central pair of jaws 25 and the inner members or jaws 19 of the lateral or outer pair of jaws, are all formed integrally or in one piece, whilethe outer jaws 37 of the outer or lateral pair ofjaws form parts of the separate attachable members 36. In the modified construction forming the new article of' manufacture illustrated iii Figures 4 and 5, the auxiliary guides 60, forming the outer or lateral pair of jaws, are carried by the upper ends of and formed in i one piece with the central pair of jaws and with thebase or attaching portion of the device. In both these varieties. of the new article of manufacture, and as hereinbefore particularly described, separate means are provided for independently and relatively adjusting the jaws of each pair to vary the width of the guide-slot formed between the jaws.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

lilaving thus described my invention, ll claim:

1. A type-guide for the types of a type writing machine forming a new article of manufacture and comprising a base or attaching portion, a central pair of spaced jaws rising therefrom and forming a central guide-slot, two lateral pairs of spaced jaws carried by the respective jaws of said central pair of jaws and forming lateral guideslots disposed at a radial angle to'the central guideslot and to each other, and separate means for independently relatively adjusting the jaws' of each pair of jaws to vary the width of each of the guideslots.

2. A type-guide for the types of a typewriting machine forming a new article of manufacture and comprising a base or attaching portion, a central pair of spaced aws rising therefrom and forming a. central guide-slot, two lateral pairs of spaced jaws carried by the respective jaws of said cen tral pair of jaws and forming lateral guideslots disposed at a radial angle to the central guide-slot and to each other, and separate means for independently relatively adjusting the jaws of each pair of jaws to vary the width of each of the guide-slots; the base or attaching portion, the central of jaws and the inner jaws of the lateral pairs of jaws all being formed in one piece, and each of the outer jaws of the lat eral pairs of jaws being formed as separate pieces attachable to the respective jaws of the central pair of jaws.

3. In a front-strike typewriting machine, the combination with a system of pivoted type-bars, of a central type-guide for the main portion of the type-bars in the system, said central guide being in a line with the types at the printing-point, and said main type-bars having types provided with guiding projections extending therefrom to enter said guide, type-bar guides near the printing-point and at the sides of said central type-guide and auxiliary thereto, to be directly engageable by type-bars at the sides of the system, and means on said central and auxiliary guides for adjusting the width thereof.

4c. In a front-strike typewriting machine, the combination with a system of pivoted type-bars of a central type-guide for the main portion of the type-bars in the system, said central guide being in a line with the types at the printing-point, and said main type-bars having types provided with guiding projections extending therefrom to enthe combination with a system of pivoted type-bars, of a central type-guide for the main portion of the type-bars in the system,

said central guide being in a line with the types the printing-point, and said main type bars having types provided with guiding projections extending therefrom toenter said guide, a bracket upon which said central guide is mounted, risers on said bracket extending upward from the cen tral guide at the sides thereof and provided with jaws to form auxiliary guides, one on each side of and above the central gulde and engageable by type-bars at the sides of the system, and means on sald central and auxiliary guides for adjusting the width thereof.

6, In a front-strike typewriting machine, the combination with a system of pivoted type-bars, of a central type-guide for the main portion of the type-bars in the system, said central guide being in a line with the types at the printing-point, and said main type-bars having types provided with guiding projections extending therefrom to enter said guide, a bracket upon which said central guide is mounted, risers on said bracket extending upward from the central guide at the sides thereof and provided with aws to form auxiliary guides, one on each side of and above the central guide and engageable by type-bars at the sides of the system, said jaws inclining substantially dially from printing-point, and means on said central and auxiliary guides for adjusting the width thereof.

7. In a front-strike typewriting machine, in combination, a platen, a system of pivoted type-bars normally occupying a substantially horizontal position in the arc ofa circle and radiating substantially from the printing-point on the front of the platen in the printing posit-ion of the type-bars, typecarrying type-heads on the forward ends of the type-bars arranged in varying angles thereto for bringing the types into vertical alignment with the printing-point in the printing position of the types, a central type-guide at the front of the platen and having a guide-slot in vertical alignment with the type-heads of the main or middle portion of the type-bars in the system in the printing position of these type-heads, guiding projections extending from the typeheads of said main portion in line with the type-heads to enter the guide-slot of the central type-guide, auxiliary type-guides near the printing-point and at the sides of the central type-guide and having guideslots to be directly entered by the type-bars at the sides of the system and near the typeheads, and separate means for independently adjusting the width of the guide-slots of saidcentral and auxiliary guides.

8. In a front-strike typewriting'machine, in combination, a platen, a system of pivoted type bars normally occupying a substantially horizontal position in the arc of a circle and radiating substantially from the printing-point on the front of the platen in the printing position of the type-bars, typecarrying type-heads on the forward ends of the type-bars arranged in varying angles thereto, for bringing the types into vertical alignment with the printing-point in the printing position of the types, a central type-guide at the front of the platenand having a guide-slot in vertical alignment with the type-heads of the main or middle portion of the type-bars in the system in the printing position of these type'-heads, guiding projections extending from the typeheads of said main portion in line with the type-heads to enter the guide-slot of the central type-guide, auxiliary type-guides near the printing point and at the sides of the central type-guide and having guide-slots to bedirectlyentered by the type-bars at the sides oi the system and near the type-heads, said type-bars at the sides of the system being provided with flat guiding projections extending directly therefrom to enter the guide-slots of the auxiliary type-guides, and separate means for independently adjusting the Width of the guide-slots of said central and auxiliary guides.

9. in a front-strike typewriting machine having a platen, a system of pivoted typeburs normally occupying a substantially horizontal position in the are of a circle and radiating substantially from the printingpoint on the front of the platen in the print ing position of the type-bars, said type-bars carrying types at their forward ends; in combination with a type-guide comprising an attaching base fixed on the machine, a central pair oi spaced jaws rising from the attaching base and forming a substantially vertical central. guide-slot for the types carried by the main or middle, portion of the type-bars in the system, two lateral pairs of spaced aws carried by the respective jaws of: said central pair of jaws and forming width of. the guide-slot formed thereby.

10. In a front-strike typewriting machine, the combination with a system of pivoted type-bars, of a central. type-guide for the main portion of. the type-bars in the system, said central guide being in a line'with the types attheprinting-point, and said main type-bars havingtypes provided with guidingprojections extending therefrom to on tersaid guide, type-bar guides near the printing-point and at the sides of said central typeguide and auxiliary thereto, to be directly engageable by type-bars at the sides of the system, said side type-bars having' bends at their'type ends, said auxiliary guides being engageable by said type-bars between. said bends and the type-bar pivots, and means on said central and auxiliary guides for adjusting the width thereof.

11.111 a front-strike typewriting machine, the combination with a system of pivoted type-bars, of a central type-guide for the main portion of the type-bars in the system, said central guide being in a line with the types at the printing-point, andsaid main 'typebar s having types provided with guiding projections extending therefrom t6 enter said guide, a bracket upon which said central guide is mounted, riserson said bracket forming the central guide and provided with jaws to form auxiliary guides, one on eachside of the central guide and engageable by type-bars at the sides of the system, and means 'onsaid central and auxilia-ry guides for adjusting the Width thereof.

12. In a front-strike typewriting machine, the combination with a system of pivoted type-bars, of a central type-guide for the main portion of thetype-bars in the system, said central guide being in a line with the types at the printingpoint, and said main type-bars having types provided with guiding projections extending therefrom to enter said guide, a bracket upon which said central guide is mounted, risers on said bracket "forming the central guide and provided with jaws to form auxiliary guides, one on each side of the central guide and engageable by type-bars at' th'e sides of the system, said jaws inclining substantially radially from the printing-point, and means on said central and auxiliary guides for adjusting the width thereof.

13. In a front-strike typewriting machine, the combination with a system of pivoted type-bars, of a bracket fixed to said machine, risers forming a central type-guide and also forming lower jaws, oneon either side of said guide, members adapted to be attached to said risers and forming upper jaws, said lower and upper jaws co-operating to form auxiliary guides, one to either side of the central guise, each of said guides co-operating with certain of the type-bars, and means for adjusting said members on the risers to *ary the distance between the upper and lower jaws.

14. In a front-strike typewriting machine, the combination with a system oi pivoted ype-bars, of a bracket fixed to said machine, a central type-guide on the bracket comprising spaced jaws forming a central guideslot, risers on said bracket, one on either side of and forming the central guide and also forming lower jaws, members adapted to be attached to said risers and forming upper jaws, said upper and lower jaws cooperating to form auxiliary guides, one to either side of the central guide and forming auxiliary guide-slots. each of said guides cooperating with certain of the type-bars, and means on each of said guides for adjusting the distance between the jaws thereof to vary the width of the guide-slot.

15. In a front-strike typewriting machine, the combination with a system of pivoted type-bars, of a bracket fixed to said machine, a central type-guide on the bracket comprising spaced jaws forming a central guide-slot, risers on said bracket, one to either side of and forming the central guide and also forming lower jaws, members adapted to be attached to said risers and forming upper jaws, said upper and lower jaws co-operating to form auxiliary guides, one to either side of the central guide and forming auxiliary guide-slots, means for vertically adjusting said members to vary the distance be tween said upper and lower jaws, and means for locking said members in adjusted position.

16. In a front-strike typewriting machine, the combination with a system of pivoted type-bars, of a bracket fixed to said machine and comprising a central type-guide and risers, one to either side of said guide and forming lower jaws, each of said risers having two tapped holes. side members adapted to be attached to said risers and forming upper jaws, each member having an upper slot and a cut-out portion in its lower extremity, said upper and lower jaws co-operating to form auxiliary guides, a beveledhead screw co-operating with the cut-out portion of each side member and one of the tapped holes of each riser to adjust the side member vertically, and a screw passing through the slot in each side member and cooperating with the other tapped hole to lock the side member in adjusted position, said slots being elongated to allow for relative movement of the side members and risers to adjust the distance between said upper and lower j HWSM 17. In a front strike typewriting machine, the combination with a system of pivoted type-bars, of a bracket fixed to said machine and comprising a central type-guide and risers, one to either side of said guide and forming lower jaws, each of said risers having two tapped holes, side members adapted to be attached to said risers and forming upper jaws, each member having an upper slot and a cut-out portion in itslower extremity, said upper and lower jaws co-operating to form auxiliary guides, a beveledhead screw co-operating with the cut-out portion of each side member and one of the tapped holes of each riser to adjust the side member vertically, a screw passing through the slot in each side member and co-operating with the other tapped hole to lock the side member in adjusted position, said slots being elongated to allow for relative movement of the side members and risers to adjust the distance between said upper and lower jaws, the central guide having a screw passing between the jaws and having threaded engagement therewith for spreading the jaws apart, one of said jaws having a tapped hole, the other of said jaws having a corresponding clearance hole, and a screw passing through the clearance hole and co-operating with the tapped hole to draw the jaws together, each of said screws being adapted to lock the jaws in position when the other screw is used for adjustment purposes.

ALFRED G. F. KUROW SKI.

Witnesses:

CATHERINE A. NEWELL, JENNIE P. THORNE.

Images