Facsimile transmitter and method of assembling the same

Claim 1

A lamp assembly adapted for use with a facsimile transmitter and comprising a housing formed with a cavity opening out of one side of the housing, a bore extending through said housing and opening into one side of said cavity, a mirror located in said housing at the other side of said cavity and aligned with said bore, a lamp holder having sidewalls and an end wall defining an open socket, said holder being located adjacent said one side of said housing with the open end of said socket aligned with the open end of said cavity, an electric lamp having a base located in said socket and having a filament located in said cavity between said bore and said mirror to direct light into the bore and to direct light against the mirror for reflection into the bore, a quantity of hardened cement in said socket and rigidly bonding said base to the walls of said socket to anchor the lamp permanently in the socket with the filament located in a precisely established position relative to said mirror, a series of screws threaded in the walls of said holder and extending into said socket into contact with the base of said lamp, said screws being adjustable rotatably prior to placing of said cement in said cavity in order to shift the base within the socket to locate the filament in said precisely established position, and said screws being fixed against rotation by the cement when the latter hardens after being placed in said socket, the outer end surfaces of said screws being continuous and being flush with the outer sides of the walls of said holder to prevent the screws from being rotated after said cement has hardened, and means releasably attaching said holder to said housing whereby the holder and the lamp may be detached from the housing and replaced with a similar holder and lamp with the filament of such lamp being located automatically in the same precisely established position relative to said mirror as an incident to attachment of the replacement holder to said housing.

Claim 7

A method of assembling and precisely locating an electric lamp in a holder having sidewalls and an end wall defining an open socket for receiving the base of the lamp and having a series of rotatable screws threaded in said walls with their outer ends accessible from the outer side of the socket and with their inner ends projecting into the socket, said method comprising the steps of, inserting the base of the lamp into the socket with the sides and the ends of the base engaging the inner ends of the screws and being held in spaced apart relation with said walls by said screws, threading the screws into and out of said walls to shift the base in at least two directions relative to said sidewalls and to shift the base in a third direction relative to said end wall thereby to locate the base in a precisely established position in said socket, filling said socket with flowable cement and allowing said cement to harden while holding said base in said position with said screws thereby to bond the base rigidly to said walls and anchor the base permanently in said socket, and disabling the outer ends of the screws after said cement has hardened thereby to prevent further turning of the screws.

Claim 8

A method of assembling and precisely locating an electric lamp in a holder having sidewalls and an end wall defining an open socket for receiving the base of the lamp and having a series of rotatable screws threaded in said walls with their outer ends accessible from the outer side of the socket and with their inner ends projecting into the socket, said method comprising the steps of, inserting the base of the lamp into the socket with the sides and the ends of the base engaging the inner ends of the screws and being held in spaced apart relation with said walls by said screws, threading the screws into and out of said walls to shift the base in at least two directions relative to said sidewalls and to shift the base in a third direction relative to said end wall thereby to locate the base in a precisely established position in said socket, filling said socket with flowable cement and allowing said cement to harden while holding said base in said position with said screws thereby to bond the base rigidly to said walls and anchor the base permanently in said socket, and disabling the outer ends of the screws after said cement has hardened thereby to prevent further turning of the screws.