US1583869A - Gate - Google Patents

Description

F.y H. BOYER May 1l 1926.

GATE

Filed sept. 27, 1924 s sheets-shgt 1 A'rroliNEys May 11 1926. A 1,583,869

v F.H BoYER GATE Filed sept. 27, 1924 s shee1s-sheet-2 l g, ljNvENToR WITNassEs May 11 1926.

` GATE Filed sept. 27, 1924 ATTORNEYS A 3 Sheets-Sheet 5 Passati' May i1, i926.

gPArENr-norrice...

renners Harrier. isernia,A or DE. QIiINcY, Louisiana..y

f earn.

. Application filed September 27, 1924. Serial No. 740,351..

means adapted to be actuated by the weight of an approaching vehicle or traveler to swing the gate members to openrposition.-y

A'further object of the invention is the provision ,in a gate construction of the character described of means normally preventing the gate member operating means from functioning to open the gate, themeans con:

trolling theoperation of the 'gate member y .lwherebyrthe sections l7 of theplatform are-r operating means being adaped tobe operated yby the driver of an approaching Vehiclev to permit the gate operating means to act'fto open the ga'te'without there being any neces-y sity-of the driveiof the 'ivehicle dismountingl from `the *vehicle or bringing the ap-l proaching vehicle to a complete stop.

Other objects and advantages will'. be apparent from the following .description considered in conjunction with the accomp'anying drawings, in which,

Figure lis a plan view of a 4gate construction embodying the invention,

Figaire 2 'is 'a longitudinal. vertical. sec-` tion throughthe gateconstruction, n Figure 3 is a transverse vertical section,l Figuree is a vplan View of a modified form of gate construction embodying the. same in-.'

vention,

Figure l5 is a` section along the line 5-5 of Figure 4,

Figure Gpi bar .and its supporting .post which .are4 come. prised in the modification,y

Figure VAis alperspective .viewof a. link;

for transmitting motionto thebar which .is exhibited in Figure 6, andV Fig. V8 is a. fragmentary perspective view.

showing a pair of coupling membersand ai portion of arod for 'connecting the coupling members `to eacll Othery'fthestflctul'@ @Xhlblt i ed iii Figure 8 being comprisedjin each of the hereinbefore mentionedforms :of tliedevice; i' 'A' gate construction embodying the invention in l:fthe ferm exhibited Figi vantage `in Figure 2.

s a perspectiveview .of a't gate.v

'-. on the in and jcomprises asupporting frame adapted to be positionedvin'a cavity 1in a roadway 2.

The' supportng framecomprises a pairv 'of stringere 33 connected .and held infparallel relatronmby endl transverse members 4 and mediate', the end members 4' and the ltransverse median lineofthe frame. A platform whichl is mounted in the said frame includes-V end sectionspfixedfto the stringere 3 and eX- tendin'g from the transverse i members 4 to thetransverse members l5and a pairjof ver-f tically 'swingable inner sections? which are secured-upon "the inner arms of pairsfol" hingen. leversV 8. lThe latter are enlarged.

transverse member 5 which are located inter-V dmvnwarcllyv intermediatetheirend's as in# dicated -at 9, said enlargements ybeingref' sides of thetransverse-mcmbers fqand are 'ceivedl in transverse slots 1() in the iupp'er attached to he latter byhorizontal pivotsll,

swingable vertically' between the stringers work in slots 12 in the sections 6'of the platthesections 6, and the upper face of the'en- The vouter end portions of the hingelevers 'form and are weighed so thatfthesections7?* normally will be maintainedjin the" plane of are indicated at 1 3 and as illustrated to ad` The sections 7 'of at their inner ends adjacent to each other.

Relatively narrow and thin plates 14 are se# l cured uponv the outer end portions of the sections 7 of the platform between the slots- 12 and overlapthe adjacent end portions of Vthesections 6 so that the vehicle can pass ys'inoothly'from one` of the sections 6 over 'the adjacent- '.strip 111 onto the adjacent movablel section 7., 'thenceontothe other movable sec-` the platform terminate tionT and across ftheother stripA 111 to the' secondfixed:section:(iv of the platform. e

. The jinner. end .portionslof the sections .7

are conn'e'cted. by :couplingl members! 15y 1and- 16 respectively, the coupling member 15 beendfiportion of `oneof the section-s1 undersideof fthe-inner Vend portionfof other; section'?. v"Flach iiieiiibe'r l-15 -is pre`` kvided" at its'ii'iner ,endwithl apair 4of spaced- 'eai'sf17 lbetween 'which an extending lug: 18j associatedk finemberi are formed lll through the ears 17 of each member 'l5 for loosely receiving a rod 2O which extends through a transverse opening in the lug 1.3.

he rod 20 is movable longitudinally of the slots 19 and the inner end portions of the sections 7 thus have limited swinging movement vertically, the rod 2O moving` vertically with the'inner end portions of the sections 7.

The sections 7 of the platform may s wing downwardly from the plane of the section t5 to oppositely inclined positions, and each section 7 will then be supported upon a pair of spaced transverse rest bars 21 and 22 respectively which extend between the stringers 3, the rest bar 22 being located nearer to the transverse median line of the frame than the rest bar 21 and being located at a lower level than the rest bar 21 so that each section 7 will be supported upon both the rest bar 21 and the rest bar 22 when. the section 7 is in downwardly inclined position. A rock shaft 23 is journaled adjacent to its opposite ends in aligned openings inthe stringers 3 and is located directly underneath the rod 20. A. stop block 24 is secured on the rock shaft 23 intermediate the length of the latter and extends above the rock shaft to position to engage with the underside of the rod 2O when the rock shaft is in normal position and to then prevent downward movement of the rod 2O from the position illustrated lin Figures 2 and 3, whereby the sections 7 of the platform will be held against swinging downward at 'their inner ends from the' plane of the sections 6 when the member 2d supports the rod 2t). The member 24k is provided with a depending extension 25 which is of relatively great weight and which therefore urged by gravity to position to cause the member 2d to engage with the rod 20. The ends of the rock shaft 23 are bent at right angles to the body of the rock shaft to provide rocker arms 26. 'lwo'standards 27 respectively are secured at their lower ends to the stringere 3 at opposite sides of the platform and laterally of opposite ends of the transverse medians line of the platform. A lever 23 is pivoted intermediate its ends on the upper end portion of each of the standards 27 to swing about an axis parallel to the anis ofy the rock shaft 23. Each lever 28 is connected at its inner end by a exible motion transmitting member 29 to the outer end of the corresponding rocker arm 26. A pull string30 may extend from the outer end of the levers 23. lfilhen the pull string 30 has been grasped and is pulled downward to cause a corresponding movement of Vthe outer end of the lever 23 to which it is attached,V the rock shaft 23 will be rocled rod 2O extend through vertical slots 31 in 4 slots 31.

' rlwo posts 3st respectively are secured upon the stringere 3 above the vertical slots 31. Grate members are carried by the inner end portions of levers 36 whichare supported intermediate their ends by horizontal pivot elements 37 on the upper end portions of the posts 34. The gate meinbers 35 and the inner 'end portions 3G of the levers are of greater weight than the outer end portions of the levers, whereby the action of gravity will tend to hold the gate members 35 in the position illustrated in Figures 1, 2, and 3, in which position the gate members' provide an obstruction across the platform. The outer end portions of the levers 36 are indicated at 33 and are enlargcdV vertically outwardly of the horizontal pivot elements 37. These enlarged outer end portions of the levers are provided with oppositely inclined slots 39 which are engaged by loops e() at the upper ends of links 41 which are attached at their lower ends to the outer end portions of the rod 20, as indicated at 4t2. f y

F rom the foregoing description of the vaiious parts of the device, the operation thereof will be readily understood. A motorist or other traveler approaching the gate members 35 grasps the adjacent pull string 30. A pull on the string 30 will cause rocking of the shaft 23A and movement of the member 24; out of position to engage with the rod 20.

Further movement of the motorist or other traveler toward the gate members 35 will cause a weight to be placed on one of the movable platform members 7 and the inner end ortions of the members 7 will be swuno v downwardly until they rest upon the transverse bars 21-22. This downward movement of the platform section wall cause a corresponding movement of the rod 2() and a pull will be caused on the outer end portions of the levers 36.through the links 41. rThis pull on the outer end-portions of the levers 36 will cause the inner end portions of said levers to be swung upwardly and apart so that passage of the motorist or other traveler across the sections 7 of the platform will be unobstructed. As soon as the weight of the motorist. or other traveler has been removed from both of the sections 7,` these sections will be swung upwardly to the plane of the platform under the action of gravity on the relatively heavy outer end portions of the levers 3-13 and the stop member 24. on the rock shaft 23 also will be permitted to move as a result of the action of gravity to position t0 engage with the underside of the rod 2O and to prevent downward movement of sections 7 of the platform take'placeuntil oneofthe levers 28 is again operatedby 'means of the pull' string 30. y

In'jthevform ofthe device illustrated in Figures 4v and 5, Itwo ofthe vsupporting frames are provided and are respectively dis posed in 'a roadway at opposite sidesof .a

railway ,track 50. Like reference charactersYY have been appliedto Alike parts of the two forms of the device and I shall confine my description of the modification which s illustrated in Figures 4 and 5 to a statement of the points of difference between the modiications and the form'of the device which has been hereinbefore fully described. Each ofthe supporting frames of the modified device has a pair of stringers 3 which are similar and identical in essential respects with the stringers 3 of the preferred form of the device and which support a platform which comprises fixed sections 6 and the movable sections 7 as hereinbefore described. The rock shaft 23, the supporting o-r stop member 24 together with the standards 27, the levers 28 and the connections between levers 28 and the rock shaft 23 are omitted from the modified form of device. The posts 34 of the preferred form of the device are replaced by similar posts 34 which carry bars 36. Each gate bar36 is pivotally Supported intermediate its length on the upper end portion of the corresponding post 34 for swinging movement about a horizontal axis and the inner end portion of each gate bar 36 extendsy nearly half way across the platform and cooperates with the inner end portion of the opposite gate bar 36 to provide an obstruction across the platform. The outerl end portion of each gate bar 36 is indicated at 38 and is provided with a transverse slot 39 for engaging with the loop portion 40 of a link 41 which is connected withthe adjacent end of the rod 2O and which differs from the link 4l of the preferred form of the device only in that it is of greater length than the latter. There is no necessity for operating a stop member when the modification is employed and therefore the weight of a traveler approaching the transverse median line of the platform of each supporting structure will cause opening of the gate members. In actual practice, an overhead frame (not shown) placed at opposite'sides of the track, and probably would carry a signal of any suitable known type of constructionto apprise approaching travelers of the presence of the railway track and also would carry a sign which would info-rm the approaching traveler that he should move forward onto the platform and that the gate would then Open' i Obviously the lnventlon is susceptible of would be embodin'ients in forms other than .4 those which '-alre. illustrated 1n the accompanyingv l. A gatefconstruction comprising a plat-.`

form having-stationaryhorizontalend sec-A Ations fandapair offintermediate..sections,.

mounted t'o-sw'nig .downwardly at .their inner ends rfrom the plane of the stationary sections, gravity means tending to hold said swingablev sections of the platform in the plane of the stationary end sections, a pair of coupling members secured to the inner end portions of said swingable platform section, said coupling members having over lapping portions at their inner ends formed with alined longitudinal slots, a rod extend* ing through said alined slots transversely of the platform and cooperating with said lapped portions of the coupling members to provide a loose connection between the inner ends of said swingable platform sections, said rod being movable vertically with the inner ends of the swingable sections of the platform, a pair of swingable cooperative gate members supported upon said platform, said gate members being adapted to swing vertically from horizontal position across the platform to substantially vertical position at opposite sides of the platform, weighted members extending beyond the outer ends of said gate members, vand links connecting said weighted members with the ends of said rod, wherebydownward swinging movement of the inner ends of said swingable platform sections will swing said gate members to vertical position, a rock shaft supported beneath said rod in parallel relation tothe latter, a stop 4member carried by said rock shaft positioned to engage with the rod and to prevent downward movement of said rod, and manually operable means extending above the level of said platform for rocking said rock shaft to swing said stop member out of position to engage said rod.

2. A gate construction comprising a platform having stationary horizontal end sections and a pair of intermediate sections mounted to swing downwardly at their inner ends from the plane of the stationary sections, gravity means tending to hold said swingable sections of the plat-form in the plane of the stationary end sections, a pair of coupling Amembers secured to theinner end portions of said swingable platform section, said coupling members having overlapped portions Vat their inner ends, a rod extending through said lapped portions transversely of the platform and cooperating with said lapped portions of the coupling member to provide `a loose connection between the inner ends of said swingable platsaid platform, said gate members being adapted to swing vertically from horizontal position across the platform tosub'stantially vertical position at opposite sides of the platform, gravity members extending from l the outer ends of said gate members said last-named gravity members having own- Wardly and outwardly inclined slots formedV therein, and links having loop portions at their upper ends slidably engaged With the slotted portions of said gravity members, said links being connected at their lower ends to the ends of said rod, whereby down Ward swinging movement of the inner ends of said swvingable platform sections will swing said gatejmembers to vertical posi- 20 tion y FRANCIS HARPER BOYER.

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