US1773830A - Multiple control switch - Google Patents

Description

Aug. 26, 1930.

w. WALKER MULTIPLE CONTROL swITcH 2 Sheets-Sheetl l Original Filed Sept. 5, 1925 llfwmll nl o HAMM H li, H

kim

3% ORNEYS Aug. 26, 1'930.

w. L. WALKER l MULTIPLE CONTROL swITcH 2 Sheets-Sheet 2 Original Filed Sept. 5, 1925 INVENTOR. W///bml Wav/ien .25% l5 l ORN 5 Patented Aug. 26, 1930 UNITED STATES PATENT OFFICE WILLIAM I.. WALKER, OF NEW YORK, N. Y., ASSIGNOR TO WALKER SIGNAL & EQUIP- MENT CORPORATION, A CORPORATION OF DELAWARE MULTIPLE CONTROL SWITCH Original application led September 5, 1925, Serial No. 54,699. Divided and this application filed February 3, 1927. Serial No. 165,606.

This application isa division of application, Serial No. 54,699, filed by me September 5, 1925. y n

My invention relates to switches that are designed to control a plurality of electric circuits by the movement of a single switch handle into various positions including an ofi position depending upon the apparatus or devices designed to be placed in operation, but it is also applicable to other uses, such as sonic direction finders, fire control of guns and various intercommunicating systems.

Unusual conditions must be met in the de sign and installation of switches, such as are comprised in this invention, owing to their use on shipboard .where they are often surrounded by moist and salty air and are subjected to very heavy shocks. in spite of which and other conditions the apparatus must be absolutely depended uponto function at the proper time with a minimum of attention and effort on the part of the operator.

In thepresent application I have described the details of a preferredA form of switch which I have found to be very eticient and reliable in actual use.V and which may compriseany number ot poles with a relatively small number of parts so that it may be installed within a small cabinet or box. together with other apparatus constituting the instruments employed in receiving the submarine signals. The arrangement of the switches in relation to the other aparatus and instruments` used is described and claimed in my copending application Serial No. 54,700..filed September 5. 1925. l

For a detailed description of the preferred form of mv invention. reference may be made to the followingsnecitication and to the accompanvinu drawings forming apart thereof. in which Fig. 1 is a side elevation of my improved switch showing;r the panel on ywhich it is mounted in section; v

Fig. 2 is a horizontal or axial transverse sectional view taken substantially on the line 2-2 of Fig. 1;

' Fig. 3 is a transverse sectional View* taken substantially on the line 3-3 of Fig. 1;

i Fig. 4 is a similar transverse sectional view taken substantially on the line 4 4 of Fig. 1;

Fig. 5 is a side elevation of one of the switch contacting discs;

Fig. 6 is a. side elevation of one of the short circuitingr discs; and

vFig. 7 is a side elevation oi one of the insulating washers which separate the cone tact discs. y

Referring to Fig. 1. the numeral 1 indicates a supporting panel preferably made of insulating material, to which is attached one of the end plates or frames 2 of the switch structure; this frame is connected with the opposite end frame 3 by means of longitudinal supporting pieces 4. 5, 6 and 7. Passingthrough the central points of the end frames 2 and 3 is the longitudinal shaft 8 ll). This terminates in the lett hand end in a reduced portion 9 on which is secured the operating` handle 10. The hub oi said handle vis'pre'ferablv provided Ywith a pointer 11 to indicate the positions ot' the handle. The shaft 8 is screw threaded ou each rend as indicated at 12 and 13, and is surrounded by insulating sleeve lll. On the screw threaded portion 13 is a disc 15 which is adapted to be retained rigidly in position by aL pin 16' or other suitable means. The screw threaded portion 12 of shaft 8 also carries a discl' aoainst which bears a retaining,r

nut 18. The left hand disc 15 is provided on its rperiphery with a series of transverse grooves 19. shown 1n dotted lines 1n Figs. 3 and 4. andin section 1n F151. 2. These `grooves vare adapted to receive a small roller 20. indicated in Figs. 1 and 2. mounted on the end of a spring arm 21 which is attached to thc longitudinal supportingr plate .5. This serves to indicate to the operator when the switch has been turned accurately to any one ot the three positions in which it is intended to be placed, because the roller entering the grooves retards the rotation ot the switch at definitepoints. The end discs or plates 15 and 17 are connected by longitudinal rods 22, which, passing! through corresponding holes in the various contacts discs and washers. serve to hold them accurately in position on the shaft 8. These holes are equally spaced from each other so :is to permit the Contact suriace ot the conducting discs to be placed in dillerent ai cular positions about the slnitt when sired. The holes through the conducting discs have insulating bushines as indicatel Q3, Figs. 5 and (i. The

end disc l5 is provided With a screr`- 2-l formme a stop to when contacting 'Wit on the end plate Q. The Contact a switches haring b en assembled i desired relative posi-ions, the same :i e lius L t t. mounted rigidly on 'he shaft S which is in sorted l etweei the t id conducting discs Wh'ch je insulating` d indicate end o i These spring; l are mounted upon the long und (ik respectiiel, :ri

t d trom said suitable n sulziting' elicits and b above description it will hii at have produced switch compactericient and durable d Le.

ujf be installed in n comparritiieljY sin; space, such as in a receiving' cabinet oi" a typ indicated in my eopendine' application Seria o. :ATDO above referred to.

flfwnie' thus described this Jform of mjy in lion. l do not irish to be understood as bei limited to the details ot lorm end errane'ement of parts shown 'tor various ma;T be made by those skilled in th Without departingl trom the spirit ou scope ot my in vention conuianj'ine claims.

Tf1/h at l claim and desire to protect by Letters Potent is:

l. switch tor controlling ay pluralitj7 oi circuits comprising, end members adapted to support a rotatable shafty supporting members connecti li s 'f end inembers a plurelitjr ot discs on said she'tt prorioed with arcuate projections. insulating; discs located between the first named discs and of slightlyY less radii. than the radii of said projections but whose redii are atei' than the rz dii o't the moin portion ot uid discs, o plurality' of uctine' brushes mounted on said supportinenibers and aoapted to rest on said inlatinf discs nd to contact alterufiitolv with 'l (l said projections when said shatt. is rotated, said supnorting brushes mounted on one oit l members and contacling` continuousljy with said projections7 a disc on said shalt having a nliiuilitj7 ot c, cua-Le projections and brushes A supportiio members adapted .to conta t Wit-li last said projections While the circuits 'through the first named brushes are made and broken.

:L switch for controlling;r a plurality of circuits compi :muy members uoapted to support a. rotatable shaft, supporting; menibers connecting seid end members :i pluralitfT of discs on said shaft provided with embers and th said prorotated said support and contectiuggr continuo projections.

and

A snitcli for controlline' circuits con'iprisiue', end memb plurality ors Awlapted to mort u rotatable shui't. su mortinggl mematt proiidmV with i it he' adapted With respect through s tion, insula i nemed discs .l ot slightlyv less rai.; the radii ot' sait r than l projections but Whose radii aro greater Lhun the radii tie ot the irs-t named di a plurulity ot ductingr brushes mounted on said sup- Q members und adapted to rest on said the main pori n i ne; discs :ind to contact alternatclj7 with said projections when said shaft is rotated brushes mounted on one ol said supporting` members und contacting continuously Witxi said projections. a disc on said sha'tt harii g a plurality ot arcuate projections i and brushes mounted on said supporting members adapted to contact with last said projections While the circuits through the tiret named ln'ushcs are made a nd br( lien.

Ll. A switch tor controllingi a plnralitjT ot circuits comp ising` end members adapted to support. a rotatable shaft, supportingY merrbers connecting soi d end members, a plu a lity ot insulated discs on said shatt provided with arcuate projections7 a plurality7 oit conducting rushes mounted on said sujiportiue' mem )ers and adapted to contact alternately with said projections when said shaft is rotated, brushes mounted on one of said supporting members and contacting contimiousljf with said projections.l o dise on s: ic sluilt haring cai-inning grooves therein and a follower mounted on one ot said supporting members adapted to engage in seid grooves to indicate when the circuits through said brushes are made and broken.

5. A switch for controllingl` a pluri litjT ot circuits comprising, end members adapted to support a rotatable shalt, supporting members connecting said end members, a pln- 'gil rality of discs on said shaft provided with arcuate projections, said discs being adapted to be placed in various angular positions with respect to said shaft, means extending through said discs to hold the same in position, insulating discs located between the irst named discs and of slightly less radii than the radii of said projections but Whose radii are greater th an the radii of the main portion of the lirst named discs, a plurality of conducting brushes mounted on said support-- ing members and adapted to rest on said in sulating discs and to contact alternately with said projections when said shaft is rotated, brushes mounted on one of said supporting members and contacting continuously with said projections, a disc on said shaft having a plurality of arcuate projections, brushes mounted on said supporting members adapted to contact With last said projections While the circuits through the first named brushes are made and broken, a disc on said shaft having eamming grooves therein and a follower mounted on one of said supporting members adapted to engage in said grooves to indicate when the circuits through said brushes are made and broken.

Signed at New York, N. Y., this 2nd day of February, 1927.

WILLIAM L. WALKER.

Images