Adjustable paper carriage assembly

Claim 2

In a typewriter, in combination, a rebound-reducing paper carriage assembly, comprising a paper carriage including a platen extending in one direction and having an impact area; at least one type bar having a type including at least one character type face; shaft means mounting said type bar for angular movement about a first axis radially spaced from said impact area so that said character type face moves toward said impact area along a first circular path having a path end portion transverse to said impact area; a carriage support havIng guide means supporting said paper carriage and platen for movement in said one direction; supporting means; means mounting said carriage support on said supporting means for angular movement with said paper carriage and said platen and impact area about a second axis substantially aligned with said first axis and said impact area, and parallel to said one direction, said second axis being radially spaced from said impact area so that said impact area is movable along a second circular path merging into said path end portion of said first circular path; and an adjusting device connected to said supporting means and to said carriage support for continuously angularly displacing said carriage support with said paper carriage, platen, and impact area about said second axis, and for holding said carriage support in a selected angular position in which the position of said impact area in said path end portion, and thereby the moment of impact of said character type face on said impact area are adjusted for reducing rebound of said type and type bar.

Claim 3

Paper carriage assembly as claimed in claim 1 wherein said carriage support has a pair of arms formed with aligned threaded bores; and wherein said mounting means includes a pair of pivot screws having threaded portions secured in said threaded bores, and pivot portions aligned along said axis and located in bearing bores formed in said supporting means for supporting said carriage support for angular movement.

Claim 4

Paper carriage assembly as claimed in claim 1 wherein said supporting means has at least one threaded bore; wherein said adjusting device includes at least one adjusting screw having a threaded portion threaded into said threaded bore of said supporting means, and a head portion having a top face on which said carriage support rests.

Claim 5

Paper carriage assembly as claimed in claim 3 wherein said head portion is a hexagonal head, and wherein said adjusting device includes a counter nut screwed onto said threaded portion and abutting said supporting means.

Claim 6

Paper carriage assembly as claimed in claim 1 wherein said adjusting device includes threaded means for adjustably supporting said carriage support on said supporting means, and locking means for said adjusting device locking said carriage support in said selected angular position.

Claim 7

In a typewriter including type bars with types movable along a path, in combination, an adjustable paper carriage assembly including a paper carriage and a platen extending in one direction and having an impact area located in the path of said types; a carriage support having guide means supporting said paper carriage for movement in said one direction, and being formed with a hole therethrough; supporting means having at least one threaded bore; means mounting said carriage support on said supporting means for angular movement with said paper carriage and said platen about an axis parallel to said one direction; and an adjusting device connected to said supporting means and to said carriage support for angularly displacing said carriage support with said paper carriage and with said platen about said axis and for holding said paper carriage with said platen in a selected angular position whereby said inpact area is placed in a selected adjusted position in said path of movement of said types, said adjusting device including at least one adjusting screw having a threaded portion threaded into said threaded bore of said supporting means, and a head portion having a top face on which said carriage support rests, said head portion being formed with a threaded recess; said adjusting screw being aligned with said hole so that an annular bottom surface portion of said carriage support surrounding said hole rests on said top face of said head portion surrounding said threaded recess; said adjusting device including a stop screw having a threaded stem passing through said hole and being threaded into said threaded recess, and having a head abutting an annular top surface portion Of said carriage support so that after adjustment of said adjusting screw and tightening of said stop screw, said carriage support is locked in an adjusted position.

Claim 8

In a typewriter including type bars with types movable along a path, in combination, an adjustable paper carriage assembly including a paper carriage and a platen extending in one direction and having an impact area located in the path of said types; a carriage support having guide means supporting said paper carriage for movement in said one direction, and being formed with a hole therethrough; supporting means having at least one threaded bore; means mounting said carriage support on said supporting means for angular movement with said paper carriage and said platen about an axis parallel to said one direction; and an adjusting device connected to said supporting means and to said carriage support for angularly displacing said carriage support with said paper carriage and with said platen about said axis and for holding said paper carriage with said platen in a selected angular position whereby said inpact area is placed in a selected adjusted position in said path of movement of said types, said adjusting device including at least one adjusting screw having a threaded portion threaded into said threaded bore of said supporting means, and a head portion having a top face on which said carriage support rests, said head portion being formed with a threaded recess; said adjusting screw being aligned with said hole so that an annular bottom surface portion of said carriage support surrounding said hole rests on said top face of said head portion surrounding said threaded recess; said adjusting device including a stop screw having a threaded stem passing through said hole and being threaded into said threaded recess, and having a head abutting an annular top surface portion Of said carriage support so that after adjustment of said adjusting screw and tightening of said stop screw, said carriage support is locked in an adjusted position.

Claim 9

Paper carriage assembly as claimed in claim 6 wherein said head portion is a hexagonal head, and wherein said adjusting device includes a counter nut screwed onto said threaded portion and abutting said supporting means.

Claim 10

In a typewriter including type bars with types movable along a path, in combination, an adjustable paper carriage assembly, comprising a paper carriage including a platen extending in one direction and having an impact area located in said path of said types; a carriage support having guide means supporting said paper carriage for movement in said one direction; supporting means formed with two threaded bores spaced in said one direction, said carriage support being located above said supporting means and being formed with two holes passing through and being aligned, respectively with said two threaded bores; means mounting said carriage support on said supporting means for angular movement with said paper carriage and said platen about an axis parallel to said one direction; and an adjusting device connected to said supporting means and to said carriage support for angularly displacing said carriage support with said paper carriage and with said platen about said axis and for holding said paper carriage with said platen in a selected angular position whereby said impact area is placed in a selected adjusted position in said path of movement of said types, said adjusting device including two adjusting screws having head portions, and threaded portions threaded into said threaded bores, respectively, said head portions being formed with threaded recesses, respectively, said carriage support resting on the top faces of said head portion; said adjusting device further including two stop screws having threaded stems passing through said holes and being threaded into said threaded recesses in said head portions, respectively, and heads abutting top surface portions of said carriage support for pressing said carriage support into abutment with said head portions in an adjusted position of said carriage support determined by the depth which said threaded portions of said adjusting screws are threaded into said threaded bores of said supporting means.

Claim 11

In a typewriter including type bars with types movable along a path, in combination, an adjustable paper carriage assembly, comprising a paper carriage including a platen extending in one direction and having an impact area located in said path of said types; a carriage support having guide means supporting said paper carriage for movement in said one direction; supporting means formed with two threaded bores spaced in said one direction, said carriage support being located above said supporting means and being formed with two holes passing through and being aligned, respectively with said two threaded bores; means mounting said carriage support on said supporting means for angular movement with said paper carriage and said platen about an axis parallel to said one direction; and an adjusting device connected to said supporting means and to said carriage support for angularly displacing said carriage support with said paper carriage and with said platen about said axis and for holding said paper carriage with said platen in a selected angular position whereby said impact area is placed in a selected adjusted position in said path of movement of said types, said adjusting device including two adjusting screws having head portions, and threaded portions threaded into said threaded bores, respectively, said head portions being formed with threaded recesses, respectively, said carriage support resting on the top faces of said head portion; said adjusting device further including two stop screws having threaded stems passing through said holes and being threaded into said threaded recesses in said head portions, respectively, and heads abutting top surface portions of said carriage support for pressing said carriage support into abutment with said head portions in an adjusted position of said carriage support determined by the depth which said threaded portions of said adjusting screws are threaded into said threaded bores of said supporting means.

Claim 12

Paper carriage assembly as claimed in claim 8 wherein said carriage support has a pair of arms formed with aligned threaded bores; and wherein said mounting means include a pair of pivot screws having threaded portions secured in said aligned threaded bores, and pivot portions aligned along said axis and located in bearing bores formed in said supporting means for supporting said carriage support for angular movement.

Claim 13

Paper carriage assembly as claimed in claim 8 wherein said supporting means has two plate portions in which said threaded bores are located, and wherein said adjusting device includes two counter nuts screwed onto said threaded portions of said adjusting screws and abutting said plate portions, respectively.

Claim 14

Paper carriage assembly as claimed in claim 8 wherein said carriage support has two plate portions in which said holes are located, each of said holes having a portion of small diameter through which said threaded stem passes, and a portion of larger diameter in which said head is located below the top surface of the respective plate portion of said carriage support.