US1214594A - Gate-actuating mechanism. - Google Patents

Description

Patented Feb. 6

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0. S. SAND.

GATE AcTuATING MECHANISM. APPLICATION FILED JULY 29,1916.

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GATE ACTUATING MECHANISM.

APPLICATloN FILED 1uLY 29, 1916.

1,214,594. j Patented Feb. 6,1917.

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0. S. SAND. GATE ACTUATING MECHANISM. APPLICATION FILED xuLY 29. 1916.

1 ,214,594:. Patented Feb. 6,1917.

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O. S. SAND.

GATE ACTUATING MECHANISNI.

APPLICATION FILED IuLY 29,I916.

1,214,594. Patented Feb. 6,1917.

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GATE ACTUATING MECHANISNI.

APPLICATION FILED JULY 29.1916.

1,214,594. Patented Feb. 6,1917.

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OSCAR S. SAND, OF GOOIDRIDGE, MINNESOTA.

GATE-ACTUATING MECHANISM.

Specication of Letters Patent.

Patented Feb. 6, 1917.

Application filed July 29, 1916. Serial No. 112,113.

To all whom t may concern.'

Be it known that I, OSCAR S. SAND, a citizen of the United States, residing at Goodridge, in the county of Pennington and State of Minnesota, have invented certain new and useful Improvements in Gate- Actuating Mechanism; and I do hereby de- Clare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to gate actuating mechanism, and particularly to load 'operated mechanism for swinging gates. To the above end, generally stated, the invention consists of the novel devices and com'- binations of devices hereinafter described and defined in the claims.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings, Figure 1 is a fragmentary plan view of a fence having a gate opening, a swinging gate for closing the gate opening and the improved gate actuating mechanism arranged to open and close the gate; Fig. 2 is a fragmentary vertical section taken on the line 2 2 of Fig. l, and illustrating by means of broken lines, a vehicle wheel moving toward the gate and about to pass over one of the wheel engaging levers to open the gate; Fig. 3 is a fragmentary view, partly in side elevation, and partly in vertical section of certain of the parts shown in Fig. 1; Fig. 4l is a fragmentary plan view of certain of the parts shown in Fig. 1 with the exception that the gate is open and certain of the parts moved into closer relation for the sake of space. Fig. 5 is a vview in side elevation of the track box shown at the left in respect to Fig. 2, but with a vehicle wheel moved nearer to the gate, and depressing the lever suiiiciently to compress the spring, the further movement of the lever necessary to trip and release'the spring to open the gate, being indicated by means of broken lines; Fig. 6 shows the vehicle wheel moved still nearer to the gate, and with the spring released and expanded to substantially its full length, the further expanding movement of the spring will release the same, and permit the several parts to be returned to normal positions; Fig. 7 is a view in side elevation of the track box shown at the right with respect toF ig. 2, but with the vehicle wheel moved through the gate opening, engaging the respective lever and depressing the same to compress the spring, the compressed spring, when released, will close the gate; Fig. 8 shows the vehicle wheel moved still farther away from the gate and depressing the lever suliiciently to have released the Vspring' and closed the gate, a further depression of the lever will permit the several parts to be returned to normal positions; Fig. 9 is a fragmentary detail view of certain of the parts shown in Fig. 5 on an enlarged scale, some parts being shown in longitudinal section, and some parts being pulled apart to more clearly show the same. Fig. 10 is a fragmentary perspective view,

with some parts sectioned on the line 10-10 of F ig.'3; Fig. 11 is a detail view, principally in section, taken on the line 11-11 of Fig. 2; and Figs. 12 to 18, inclusive, are

'fragmentary detail views, partly in plan and partly in horizontal section with some parts indicated by means of broken lines. Figs. 12, 13, and 14 show the gate respectively closed, opened, and then closed by vehicle moving in the direction of the arrows marked thereon, and should be read respectively in Vconnection with Figs. 2, 6, and 8. Figs. 15 to 18 inclusive show the gate opened and closed by vehicle moving in the direction of the arrows marked thereon. Fig. 15 shows the gate open with certain of the parts about to be returned to normal positions. Fig. 16 is like Fig. 15 with the exception that the parts have been returned to normal positions. Fig. 17 shows the gate closed with certain of the parts about to be returned to normal positions. Fig. 18 is like Fig.A 17 with the exception that the parts have been returned to normal positions.

The numeral 1 indicates a fence having a gate opening 2 located between gate posts 3 and'l. The gate opening 2 isA normally closed by a gate 5 secured to the gate post 8 by a pair of vertically spaced hinge brackets 6 for horizontal swinging movement. Each hinge bracket 6 comprises pivotally connected members, one of which is rigidly bolted to the post 3 and the other of which is rigidly bolted to the inner' upright end member of the gate 5.

The gate is held in a closed position by aspring pressed lock bolt 7 mounted in the front upright end member thereof for horizontal sliding movement longitudinally of the gate. The outer projecting end of this lock bolt is adapted to enter, when the gate is closed, a socket in a lock plate 8 secured to the post Oppositely extended cam surfaces 9 on the lock plate 8 are alternately engaged by the lock bolt 7, during the swinging Vmovement of the gate 5 toa closed position, to retract said bolt and cause the same to ride over the lock plate 8 and enter the socket thereof. Connections for releasing the lock bolt 7 will hereinafter be described. rlhe parts, thus far described, may be of any desired construction.

Concentric rock shafts 10 and 11, the latter of which is tubular, are axially alined with the pivotal connections between the members of the hinge bracket 6. The shaft 10 is journaled in the shaft 11 and projects through both ends thereof. A segmental coupling head 12 is pivotally secured for horizontal movement to a bracket 13 which in turn is rigidly bolted to the rear upright end member of the gate 5 just below the upper hinge bracket 6. The pivotal connection between the coupling head 12 and bracket 13 has a bore axially alined with the rock shaft 11 and which bore affords the journal for the upper end of said shaft. The coupling head 12 has only a very limited movement in respect to the gate 5 in both directions from a normal position as the same engages the gate as a stop. The coupling head 12 is yieldingly held in normal position by the spring of the lock bolt 7 through connections which will presently be described. l

A box 14 is located just below the surface of the road bed, under the shafts 10 and 11, and into which box said shafts project. Both shafts 10 and 11 have limited endwise movement, the one with respect to the other. ligidly secured to the upper end of the rock shaft 10 is a horizontal arm 15 having at its free end a depending linger 16. 0n the lower end of this lever 10 is a horizontal crank arm 17 which is located in the same vertical plane with the arm 15. The lever 11 has rigidly secured to its upper end a relatively short arm 18 which moves in a horizontal plane between the coupling head 12 and arm 15. A crank arm 19 is also rigidly secured to the lower end of the shaft 11 and is located in the same vertical plane with the arm 18. Normally the arm 15-18 and the-arm 17-19 extend at right angles to each other, and in diverging relation with the vgate 5 when the same is closed.

On the upper face of the coupling head 12 are two pairs of concentric earn lugs.

The inner cam lugs with which the arm 18 coperates, are indicated by the numerals 20 and 21, and the outer cam lugs, with I which the linger 16 coperates, are indicated by the numerals 22 and 23. The cam lugs 20 and 22 are in substantially longitudinal alinement with the gate 5, and the cam lugs 21 and 23 extend substantially at right angles thereto, and are located one on each side of the gate.

Located ina the wheel track nearest the fence post 3, is a pair of track boxes 24 and 25. These track boxes are located a considerable distance from the gate 5, and one on each side thereof, with their tops flush with the road bed. Levers 26 and 27 are intermediately fulcrumed on the tops of the boxes 24 and 25 respectively. rl`he upper ends of these levers 26-27 are relatively wide and extend transversely of the wheel track in which they are located so as to be easily engaged and operated by a vehicle wheel Z. The lower ends of the levers 26-27 extend into the respective boxes 24 and and work through slots 28 formed in the tops thereof. Conduit sections 29 connect the track boxes 24 and 25 with the box 14.

The inner ends of a pair of oppositely extended long rods 30 and 31 are pivotally attached at their inner ends to the crank arms 17 and 19 respectively. These rods 30-31 extend through the sections of the conduit 29 and through short tube sections 32 secured in the ends of the boxes 24--25 which afford bearings for said rods and hold the same for straight endwise movement.

A iexible section 33 in the rod 30 comprises four horizontally spaced disks 34- 35-36 and 37 axially alined with the rod 32, two pairs of vertically spaced overlapped rods 38-39, and a relatively heavy coiled spring 40. The disks 34 and 36 are secured respectively tothe inner and outer sections of the rod 30. The rods 38 work through apertures in the disk 37 and connect the disks 34 and 35, while the rods 39 work through apertures in the disk 35 and connect the disks 36 and 37. The spring 40 surrounds the rods 38 and 39 and is arranged to be compressed between the disks 35 and 37. A cable 41 connects the lower end of the lever 26 to the disk 36, and its intermediate portion runs under a guide sheave 42 journaled on a bracket 43 in the box 24.

A relatively light coiled spring 44 anchored to the disk 36 and a bracket 45 secured in the box 24 returns the rock shaft 10, rod 30, with the several connections of its flexible section 33 and the lever 26 to normal positions. A gravity lock dog 46 pivoted to the bracket engages the disk 34 when in anormal position and holds the same together with the long section of the rod 30 and rock shaft v10. in ,theirnormal 13e positions. The spring 40 while being placed under tension by the movement of the lever 26 caused by the wheel Z passing thereunder reacts against the disk 35 as a fixed base of resistance. At this time, the disk 35 is held by the lock dog 46 through the rods 38 and disk 34.

During-the latter part of the downward movement of the lever 26, the lock dog 46 is tripped out 'of engagement with the disk 34 by a cible connection 47 between the disk 36 and bracket 45. Just before the lock dog 4G is tripped out of engagement with the disk 34, the disk 36 engages a gravity lock dog 48 pivoted to the bracket 43 and is held thereby. When the lock dog 46 is released, the compressed spring 40 expands and acting on the disk 37, as a fixed base of resistance, draws the long end of the rod 30 awayV from gate 5. This movement of the rod 30 swings the gate 5 open and away from the approaching vehicle through the following connections, towit: crank arm 19, rock shaft 11, arm 15, and nger 16 interlocked with the cam lug 22 on the cam head 12. During the initial movement of the coupling head 12, the finger 18 is uncoupled from the head 12 by an endwise movement of the rock shaft 11, to carryI said finger out of engagement with the cam lug 20. This movement of the rock shaft 11 is imparted by a cam lug 49 on the bottom of the boX 14 with which the crank arm 17 engages during the movement of the coupling head 12 with respect to the gate 5'.

During the nal expanding movement of the spring 40, the disk 35 engages the lock dog 48 and cams the same out of engagement with the disk 36. Vhen the disk 36 is released, the spring 44 returns the several parts, heretofore mentioned, back to normal positions.

When the gate 5 is swung open, as just described, the same is auto-matically locked in open position by a latch bar 5() and cooperating lock bar 51. The latch bar 50 extends transversely of the gate 5 and is intermediately pivoted to the top rail thereof, while the lock bar 51 is rigidly secured to the post 3 and extends transversely of the tence 1 on each side thereof. The latch bar 50 has ratchet-like ends 52 which alternately engage the ends of the lock bar 51 and interlock therewith. The initial engagement of the latch bar 50 with the lock bar 51 rocks said latch bar on its pivot to permit the respective tooth to first pass, and then interlock with, the lock bar 51. A pair of links 53 connect opposite ends of the latch bar 50 with the coupling head 12 at diametrically opposite points, and yieldingly hold the latch bar 50 in normal position.

The lock bolt 7 is retracted to release the gate 5 from the 'post 4 during the movement of the coupling head 12 with respect to the gate, by a rod 54 pivoted thereto, and connected by branch cables 55 to diametrically opposite points on the coupling head 12. AAn eye 55 on the top rail of the gate 5 through-which the rod 54 works, holds said rod for straight endwise movement. Through the rod 54 and branch cables 55, the coupling head 12 is yieldingly held in a normal position by the spring ot the lock bolt 7.

`With the gate 5 locked to open by the latch bar 50, the vehicle can move through the gate opening 2 and the wheel Z thereof engage the lever 27 and close the gate. The connections between the lever 27 and rod 31 are identical with the connections between the lever 26 and rod 30 and corresponding parts are designated by like numerals with the numerals designating the parts between the lever 27 and rod 31 having the exponent a added. in closing the gate, the action oit the respective parts are identical with the parts used in opening the gate. The initial movement of the lever 27 in the opening of the gate, turns the coupling head 12 irst with respect to the gate 5. This turning of the coupling' head 12 unlatches the 0'ate and moves the rock shaft 10 endwise by the engagement of the crank arm 17 withk the cam lug 49a to uncouple the arm 18 from the head 12. Further movement o'l the 'coupling head 12 will engage the gate 5 and close the same.

What I claim is:

1. The combination with a swinging gate, of mechanism for swinging the gate in both directions, and through normally interlocked members, one of which moves with the gate and the other two of which are alternately released from' the third member by reverse swinging movement of the gate.

2. Iihe combination with a swinging gate and a coupling head connected thereto, of reversely acting arms both having normal interlocking engagement with the coupling head, and means whereby the initial movement of one of the arms will uncouple the other arm from the coupling head.

3. The combination with a swinging gate and a coupling head carried thereby, of a pair of arms normally interlocked with the coupling head and arranged to open the. gate, the one in one direction and the other in the opposite direction, connections for independently operating the arms, and means for rendering one of the arms inoperative while the other arm is operating to open the gate.

4. The combination with a swinging gate and coupling head carried thereby, of a pair of arms normally interlocked` with the coupling head and arranged to open ythe gate, the one in one direction and the other in the opposite direction, connections for independently operating the arms, and augate, the one in one tomaticmeans for rendering one of the arms inoperative While the other arm is operating to open the gate.

5. The combination with a swinging gate and a coupling head carried thereby, of a pair'of arms normally interlocked with the coupling head and arranged to open the gate, the one in one direction and the other in the opposite. direction, connections for alternately operating the arms to open and then close the gate, and means for renden ing one of the arms inoperative While the other arm is operating to open the gate.

6. The combination with a swinging gate Aand a coupling head carried thereby, of a pair of arms normally interlocked with the coupling head and arranged to open the direction and the other in the opposite direction, connections for alternately operating the arms to open and then close the gate, means for rendering one With the coupling head and arranged to openV the gate, the one in'one direction and4 the other in the opposite direction, connections for independently operating the arms, means operating during the movement of the coupling head with respect to the gate for rendering one ot' the arms inoperative While the other arm is operating to open the gate.

In' testimony whereof I aiiiX my signature in presence of two Witnesses.

OSCAR S. SAND. Witnesses:

NICOLAY BUNDHUND, H. B. RooKIN.

Copies of this. patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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