Keyboard apparatus

Claim 2

A keyboard for a key actuated device including a plurality of keys constructed to be actuated by movement of the fingers of an operator downward, forward, backward, and upward against the keys, comprising at each finger position: (a) a first key disposed among the plurality of keys and having a substantially horizontal contact surface and disposed for downward actuation; (b) a second key disposed beside and at an angle with respect to the first key, and disposed for forward actuation; (c) a third key disposed beside, at an angle, and oppositely facing with respect to the second key, and disposed for backward actuation; and (d) a fourth key disposed above the first key and disposed for upward actuation.

Claim 3

A keyboard apparatus, according to claim 1 wherein the keyboard is on a typewriter.

Claim 4

A keyboard apparatus, according to claim 2 wherein the typewriter is arranged with the Standard American keyboard of letters and characters.

Claim 5

A keyboard apparatus according to claim 1 wherein the keyboard apparatus is disposed in a separate frame attached to the key actuated device.

Claim 6

A keyboard according to claim 1, wherein the fourth key is disposed above the first and second keys.

Claim 7

A keyboard according to claim 1, wherein said key actuated device is a typewriter having the Standard American keyboard arrangement of keys.

Claim 8

A keyboard according to claim 1, wherein the fourth key is disposed at an angle relative to a contact surface of the second key.

Claim 9

A keyboard according to claim 7, wherein the contact surface of the second key is at right angles to a contact surface of the first key, a contact surface of the third key is at right angles to the contact surface of the first key, and a contact surface of the fourth key is at an angle with respect to the contact surface of the second key.

Claim 10

A keyboard apparatus according to claim 1 wherein the keys have adjustment means for positioning contact surfaces of the keys relative to a finger that is positioned for typing.

Claim 11

An attachment apparatus having a first keyboard, for attachment on a key actuated device having a second keyboard with designated home row keys and a frame, comprising: (a) an attachment frame constructed to fit on the frame of the device to circumvent the second keyboard, (b) a plurality of attachment keys supported by the attachment frame at a position above the second keyboard of the device, (c) a first group of keys, in the plurality of attachment keys, supported to strike the home row keys of the device when operated by finger contact on the first group of keys, (d) a second attachment key disposed beside and at an angle with respect to each first group key, (e) a third attachment key disposed beside, at an angle, and oppositely facing with respect to each second key, and (f) a fourth attachment key disposed above each first group key.

Claim 12

An attachment apparatus having a first keyboard, for attachment on a key actuated device having a second keyboard with designated home row keys and a frame, comprising: (a) an attachment frame constructed to fit on the frame of the device to circumvent the second keyboard, (b) a plurality of attachment keys supported by the attachment frame at a position above the second keyboard of the device, (c) a first group of keys, in the plurality of attachment keys, supported to strike the home row keys of the device when operated by finger contact on the first group of keys, (d) a second attachment key disposed beside and at an angle with respect to each first group key, (e) a third attachment key disposed beside, at an angle, and oppositely facing with respect to each second key, and (f) a fourth attachment key disposed above each first group key.