US1300354A - Ordnance sighting apparatus. - Google Patents

Description

A. T. DAWSON 61 G. T. BUCKHAM.

ORDNANCE SIGHTING APPARATUS.

APPLICATION FILED 111115 21.1911.

1 00,354. @1 Patented Apr. 15, 1919.

m: mum! PETERS mAPNoIo-urnn, wsnmomu n c ",TEN'QLANDL {772 01111 {whom it-may'concem:

f Be it known that we, Sir ARTHUR TREVOR Dawsomw knight, 3 and GEORGE THOMAS oK AM,;;both subjects of the King of reatg Britain, residing at Vickers House,

ndon,-England,- have invented certain new andgus'eful Improvements in or Relating to "Qrdnance Sighting Apparatus, of which the ollowing is a specification. srllihisyinvention relates to sighting appairtysb ithe-kind"comprising a sight bracket dlei 'fonkrangeadjustments and which has a \Inrsuch apparatus it is usual to mploy ian-zarm elevated for range on which efdeflectioh pdial; and the handle of the deflection gearare carried and to mount heeirangegadjusting gear on a plate on suchnganiarrang'ement the relationship or relativ sp H dethesrangedial'alters every time a range suggested: :Eorpreventing such alteration in ableliwhena the sighting apparatus is detoigive'zlar'ge range adjustments. lkccordi ngwto'the present invention we so inFsighting-apparatus of the kind above set forth, that the deflection dial can be'carried by the gun cradle, preferably upon the plate orabracket that carries the range dial. In this manner-not only is the relationship between the Jdials maintained constant, but 7, n'o'trouble :isexperienced in regard to the overhead decks of a ship or to the roof of -a; shield when the sights are in the fool Tproofposition.' 'Bythe term fool proof positionsis imeant the position of'the telerang 'evisput one'the sight, while the gun Thisflofivcourse is not a working position, but :the'overheaddecks and the roof of the tilin order thatthe' 'said invention may be ORIDNAIN'CE swarms aPPAaA'r s.

Specification of Ietters Patent.

' Applicationfiled'J'une21,1917.SerialNo.'176,112.

Broadway, ;Westminster, in the county of a smallerscale, showing amodified form of the sighting apparatusawith the gun assumedto beat its maximum angle of elevaa d hich ispivotallymounted on the gun-craightZ-carrier 'pivoted thereto for lateral ad-v V ack'et' attached toethe; gun cradle. With osition-ebetween the deflection dial djilstment iseimade, although in sighting apparatus 'zof otherrkinds means have been, i

provided a toothed bevel arc D. connected lationship whichis particularly undesir-.- I

' D-w1thwhich gears a worm bonded by nstruct w'andaarrange the deflection gear scopesydeflection arms, etc., when maximum itself-is "registering maximum depressionv shield 'have'tobe made to clear such posiearlyiunderstoodfand readily carried into efieeqfwveiwill describe the same more fully.

.LITED N orFrcE;

TREVOR DAWSON AND-GEORGETHOMAS BU'CKHAM, or -wnsrivrmsrnn, Lennon, ENGLAND, ASSIGNORS T0 vromms LIMITED, or w'nsrmms'ran,

"" Patentedripr. 1 5

' r with reference to-ithe accompanying? 'draw- Figure is a s de elevation showing a form of s1ght ngapparatusf constructed in Y accordance wlth' ourinvention. 7

Fig. 2 is a view similar to "Fig- 1- Fig. 3 is anen'd elevation'oi. Q -viewed in the direction of the 'arrowy-in the' latter figure and drawn to a larger scale, apor- "the sight carrier. Biisthe'deflection dial and B' the handle of the'deflectionrgear." C lsthe range dial and G: thehandleef. the

said plate or bracket attached tol-thezgun range adjusting gear which in the examples c j shown comprises. a cam (3 D: is the aforecradle The: saidplate carries thedials B" n and. 6.; the ,handles'iB'. and C ,and the 1-In the ci mple i fthere' is to or made integral with a worm wheel are a spindle b operated by the deflection handle. B. Meshingjwith the bevel arc D is a pinion a carried bya spindle a mounted in bearings on the, sight bracket A and connected by suitable gearing such as a' zscrew and:nut with the sight carrier A. The

said bevel arc D is mounted co-axially with the pivot of the sight bracket-A and owing to theengagement of the aforesaid worm b with the worm wheel arc D, is prevented from moving during the elevation of the sight bracket by the cam C As the pinion a meshing with the bevel arc D is carried by the sight bracket, the elevation ofthe latter'causes the'pinion to run on the bevel arc and the sight carrier'is thereby jau'to- -matically deflected for drift. 'VVhen the de- -'fl'ection handle B is operated the be'velarc "D is angularly displaced 'relatively to the sight bracket and the pinion is thereby rotated to impart the speed-of target deflection to the sight carrier -A'.' The spindle b" is {rovided with another worm, b for -a'ctuat1ng the deflectioa dial or its pointer;

- In the example shown by igs. 2 and 3 the adjustment for drift is a arranged by placing the sight frame A, the plate D attached to thewguncradle and the cam, C

on an axi'sfwhich'is calledthe 'drift jaxis,

inclined" to the gun trunnion aX'is.*"When range is put on the sight the sight frame A is rotated around the drift aXis by means j of the, cam C operating on the push rod 10 connected to'the frame "A.-

Adj ustment for deflection is made through the spindle b which is connected by bevel pinions to*-a screW b engagin'g with a 'nut 72* which carries a member B having a curved slot B concentric with the drlft -axis;" the sight-carrier A has an upwardly inclined deflection-arm A carryingiashoe 'A 'disposed in'the said curved slot' B the sight carrier A is'made to'rotate on the de'flectionpivot" by-means of the member A which receives its motion from the member B moved by means of the nut B at right angles to the-deflection pivot,

During the range adjustment vof the sight the shoe A slides in the said curved slot-1' B a'ndis draWn up an'd down the slot by' the sight frame A so as to obviate any bend-p in'g actionon the 'arm' A thus connectlon is maintained at "all times between 1the-' deflection'gearand the deflection arm A The 5 latter is connected by a'trans'verserod a to the deflection arm"appertainingtofthe 7 We'cla'im I ters'PatentoftheUnitedfstates is V 1. In ordnance sighting apparatus, the

combination with theguncraidle off, a 'sight bracket pivotally mounted on the gun cradle "for rz'tng'e adjustments, asight' carrier p'iv ote d to the/sight bracket forflateral adjust- 'ments, range adjusting gear, including a rangeindicatoncarried by the gun cradle 4 5 i j cradle.

and deflection" adjusting gear, including a deflection indicator gal'soj carried by the gun 2. In ordnance sighting apparatus, the

" combination With the gun'cradleof a sight 'bracketpivotally mounted on the "gun cradle for range 'a djustments, asight-carrier piv- "oted to' the sight'bracket for lateral'adjustments, range adjustingfigear, including a range indlcator and a range setting handle both carried bythegun cradlegand deflection adjusting Igear-"includinga deflection ."in'dicaton and "a deflection setting "handle bothalso carr-ied bytheguncradle, 7

for rangeadj ustments, oted to the sight bracket for lateral adjust V ments, ra'nge "adjustingf'gear including a;

"range indicator, deflection-adjusting gear ncluding a deflection indicatonfandia p'lateig '-3.In ordnance slghting f apparatus, the

1 6'0"" combination with thei gu'n cradle of a si'ght 5 bracket pivotally' mounted en the gun jcrafdle range indicator carried by the i 6. :In ordnance' s'ifghtin'gf apparatus,

"sight on the opposite side the mounting a sight carrier pivcombinationz'with the-:gun era ,attached to the gun ;cradle,-.the said plate [carrying both said'indicating' devices.

4:. In ordnance sighting apparatus, the combination with the gun cradle of a sight bracket pivotally' mounted'on the cradle for range adjustments, a sight carrier pivoted to the sight bracket for lateral adjust:

ments, range adjusting gear, including a deflection adjusting gear, including a defiectio'n indica'tor also carried by the gun cradle, and a member operating to movethe sight for deflection adj us'tments and also for -automatic-driftadjustments-g. c

- 5. y In era ance sighting apparatus, 1 the combination with thergun cradle of'f' a sight bracket pivotally mounted on the g ncradb forfrange adj ustments, a 'sight carri'er pivoted to' the" sight bracketforf' -lateral ad] ust c c merits, rangea'djusting gear, includ'in'g a 7 range indicator carried by the gun cradle, V

a deflection setting handle and a deflectionindicator- 'carried by: the gun r'iradle, a'

toothed member connected' by lockingz gearin withthedeflection setting'handle' mfl s V -whereby on aotuat'ion' 'of; said 'ha ndle the said membervimparts*defiection' to thesight carrier a1'id*rneanswhereby during 'the'i ange a' djustment of the sight 'bracket the *s'aid g c member imparts automatic driftmovement tothesight carrier.

V th oinbinatio'n' with: theigun': cradle of a a deflection, setting handle, 5 a' member moved laterally :"byl said 5 handle, a second member for transmitting deflection tozthesight carrier, this "member "moving with :the sight "bracket during range '"adjustments-g and a 1s)lidingconnection between said two mem "ers.

' *7. -"In ordnance sighting app'aratus, the

combination With' the gun-cradle of a sight {bracket pivotally mounted on the guncradle 'for range adjustments, a sight' carriervp-iv- 1 oted to the sight. bracket for lateral adjustments, range adjusting :gear, including a range indicator carried by-the gun' cradle,

deflection adjusting "gear, including a: 'deflection indicator carried by the 'gun cradle,

"a deflection" setting handle, a curved membcr moved laterally 7 by said? handle-arid a second member for transmitting deflection to 4 the sight carrier, "this member moving Wvith the sight bracket during range'ad-just} "ments and being slidablyrengaged With th'e first 1 mentioned member". a 8. In "ordnance "sightingapipeamtu z -th of wii ght bracketp'ivotally mounted on the gun cradle to move during range adjustments about a one axis at an angle to the gun trunnion v axis,"a sight carrier pivoted to the sight f5 bracket forlateral adjustments, range adjusting gear, including a range indicator carried' by the gun cradle, deflection adjusting gear, including a deflection indicator carried by the gun cradle, a deflection set- 1 ting-handle, a curved member moved laterlb opies of this patent may be obtained for ally by said handle and a second member for transmittin deflection to the sight carrier, this mem er moving With the sight bracket during range adjustments and being slidably engaged with the first mentioned member.

In testimony whereof We affix our signatures. g

ARTHUR TREVOR DAl/VSON. GEORGE THOMAS BUCKHAM.

five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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