US2544215A

US2544215A - Door and gate operating mechanism

Info

Publication number: US2544215A
Application number: US773752A
Authority: US
Inventors: Bootha Pieter Cornelis
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-09-21
Filing date: 1947-09-13
Publication date: 1951-03-06
Anticipated expiration: 1968-03-06

Description

March 6, 195] c, BQOTHA 7 2,544,215

DOOR AND GATE OPERATING MECHANISM Filed Sept. 13. 1947 l/VVEN ran I A TTDH/VE) Patented Mar. 6, 1 951 DQQRAND-QATEQPERATINGMEQHANISM Bietcr Corne lis Bootha, Thabazim'bi, 'Rustenburg Distric'LfUnion of :South Africa nplicaticn ficpicmhcr 3, li flyseliahNo- 773, 52

ihcli n cn 9 ou rica-September 21, 119.45

1 ih s in e ti lat s t d e nd sa e spe atin mechanisms operated by the movement o}! a vehicle, and more particularly to mechanism designed to open and close vertically hinged gates of "the 'WP? nown as *farm gates. It is the object of :the invention to "provide simpie and ineggpensiye mechanism to contra; the gates, and which ensures that gates are not left open; and in its preferred form the invention provides a means to open-and closethe ga-teirrespective of Ethe -side of approach of the vehicle. Other objects will appear from the-fol1owing description of 'an example of the invention which is illustrated in the attached drawings in which .Figure 31 'is perspective view pf the assembly ShOWndnoperatingposition.

Figure 11 "is an enlarged 1ew,:in perspective. of part .gf Figure I.

Figure 1-H is a fragmentary side view, partly i i-section, of one'striking element.

Figures and v are perspective views of modified construction, and

"Figure is a perspective view from below ofpartofFi-gurei.

The gates which are to be controlied numbered 2., and m y be double sa s h w L Figures '1 and II or, a single gate may be .controlled, the former case being generally dealt with hereinafter. The gates are hung one vertical hinges 3 attached to gate posts 4.. Theggates swing open in the direction of the arrows A iFigures I and IV).

The opening and closing of the gates "2 are controlled by .sets of mechanism which are the same for each gate. and for convenience en'ly oneset willbe-descrlbed.

the g e. a single r e. th n only :Qne se o'f nechanismisprovided.

finch mechanism comprises a bpacket *5 jast with the gate and extending beyond it past the axisof the' hinges '3. jSajid *bracket presents two impact faces, 6", l, respectively, both positioned beyond the said axis, one of which ;6 is parallel to the 'plane of the gate and the other 1 fwhich istransverse'thereto. To'providetheseia efil'thfi r is cq i c i mly bent to sha as shown, the faces being presented by the arms 8 and 9 respectively and heing arden -eagles to one another. 1

Arranged parallel with the roadway R is .a red I 0 which is slidably mounted in 'a seriesof' guides ll set into the "the roadway or into the earth adjacent that edge. Elie-rod 10 extends 'to both's'ides ofthe gatepost l.

Fixed on the rod I0 is strikingistruct regene al y d i na v chstr time ng deli cated at either side of the gatepost 4. par.- 13656 of such structure is to gargv-ide a element I3 (Figure III) which, when the rod [0 is moved longitudinally, impacts against one of a claims. (01. misses) he :iaces ii r "1 to swing th gat p n :or closed. as the case maybe. The structure may consist of a halt M (the head of which impacts against the associated face 6 or 1 and constitutes the element 13), the bQlt being slidably arranged in a block 15 mounted on the rod Ill and fixed to it by means of a set screw 16. At each of its ends I"! the rod i0 is fastened to a crank 18 or 18a (Figures it and VI) rigidly mounted on a rod 1-9 or 13;; sunk into the roadway R. and rotatably mounted in --a sleeve '20. The rod 19 or 1 9a crosses the roadway and is connected to the cranks "i8, IBa-ateither sidegfitl Each rod -19 or 19a "has-rigidly mounted on it two plates 2|, 22 or 21a, 22a respectively which are so arranged that when one of them is flush with -:the road surface, the other projects above the surface suitably to be trodden down by a wheel of a vehicle passing along the roadway.

The-operation of the device thus far described is "that the driver of a vehicle approaching the gatei-rom either direction finds one of the plates on his side of the gate (say that marked 21-) standing :up from the road surface. For convenience, it is assumed that the direction of -ap.- proach is that indicated by arrow 15. He guides his vehicle for a wheel to over the plate,

which is depressed. 'The rod I9 is rotated and transmits its movement to the rods 10 which slide inthe'ir guides H in the direction opposite to that in which the vehicle is moving, thereby causing the elements 13 which are at the side of the gate "opposite to that which the vehicle is approaching (and which are for convenience marked C) to strike against the faces 6 of :the

bars -'5. The impact of the elements against the faces '6 swings the gates open.

The movement of the rods 10 is transmitted also to the rod l9a through the cranks, l8, 18a

fast with the rod 19a, and rotation of the :rod

'l-9a causes the plate marked 2'la,whi ch hitherto has been flush with road surfaceto be pro.- jected above the surface. Simultaneously, plate 22, hitherto :depressed, is projected, and 22a, hitherto projected, is depressed.

"The-gates heing 'nowopen, the striking face '1 :of

each deracketll is presented to its associated :ele-

3 passed through the gateway) another plate projected ready for depression to close the gates; the pair of plates 2| and 2la. co-operating when the vehicle is moving in one direction and the plates 22, 22a co-operating when the approach is from the opposite direction.

It is desirable (if not essential) to provide positive means to hold the gates in open position, in addition to the means always provided to hold them closed. If the former means he provided, then it must be so arranged that it does not interfere with the swinging open or closed of the gates by the mechanism which has been described.

Dealing firstly with the means to hold the gates closed, such means consists, in the embodiment illustrated, of a hook 23 (Figures I and'II) pivoted on each gate at its free vertical edge, and a block 24 positioned to be gravitationally engaged by the hooks when the gates close. A cord 25 is attached to each hook 23 towards the end of the hook remote from the pivot, passes over pulleys 26, 21' and is fastened to one of the blocks l5. The striking elements [3 which cause the gate to open are arranged to be a small distance from their associated faces 6 (about one-half inch being satisfactory) and during the movement of the elements towards the faces 6, the cords act to disengage the hooks 23 from the block 24 so that,

by the time the elements meet the faces 6, the

gates are free to be swung open. On the closing of the gates, the cords are sufficiently slack to enable the hooks to engage the block 24 gravitationally.

Figures I, IV and V. In the Figure I arrangement, the means consists for each gate of a resilient leaf 28 positioned to engage the lower edge of the gate and to hold it frictionally against rebound. TheFigures IV and V arrangement is intended for use in the case of a particularly heavy gate, such as may be the case when only a single gate fills the gateway. In this case the leaf 29 is biassed upwardly by a compressionspring 30, and is formed with a shoulder 31' to engage the gate against rebound. The gate is freed, before the closing means becomes operative, by a shoe 32 fast with the-rod l 0, which, as is shown in Figure V, engages the leaf 29 and depresses it to free the gate for closing.

. The two plates 2!, 22 or 2|a, 22a at each side of the gate are so spaced that, when a vehicle wheel passes over one of them, the other is'out of the way of the other wheel or wheels. They may be spaced sufficiently closely or sufliciently far apart to ensure that this occurs, whatever the wheel auge of the vehicle.

I claim:

1. A gateecontrolling deviceof the kind operated by the passage of a vehicle comprising a pedal in the road on each side of the gate in the path of a wheel'of a vehicle using the road, a longitudinal rod parallel with the extent of the road, a crank mechanism connecting each pedal to the rod, and so arranged that movement of either pedal imposes longitudinal movement on the rod and vice versa; one pedal being projected above the surface of the road when the other is depressed, and vice versa; two striking surfaces rigidly associated with the gate and displaced from the hinge axis; and two striking elements mounted on the rod, each element being associated with one of the striking surfaces; one element being positioned to impact against its as- Mean to hold the gates open is illustrated in sociated surface to swing the gate open when one of the pedals is depressed, and the other element being positioned to impact-against its associated surface to swing the gate closed when the other pedal is depressed.

2. A device as claimed in claim 1 in which each striking element is resiliently mounted on the rod.

3. A device as claimed in claim 1 comprising a bracket attached to the gate and projecting beyond the hinge axis, the bracket providing the two striking surfaces.

4. A gate-controlling device of the kind operated by the passage of a vehicle, comprising a pair of pedals in the road on each side of the gate in the path of a vehicle using the road, a longitudinal rod parallel with one another and with the length of the road, a transverse rod at each side of the gate on which the pair of pedals is rigidly mounted, crank mechanisms connecting the transverse rods and the longitudinal rod so as to convert movement of the pedals to longitudinal movement of the rods, and vice versa; one of each pair of pedals being projected above the surface of the road when the other of the pair is depressed and one of the other pair of pedals being simultaneously projected and the other depressed;

- jected on depression of the first-named pedal is depressed.

5. A device as claimed in claim 4 in which each striking element is resiliently mounted on the rod.

6. A device as claimed in claim 6 comprising a bracket attached to the gate and projecting beyond the hinge axis, the bracket providing the two striking surfaces.

7. A device as claimed in claim 6 and suitable for controlling double gates hung on vertical hinges, including a second longitudinal rod parallel with the first longitudinal rod, and a crank mechanism between each transverse rod and each longitudinal rod, two striking surfaces rigidly associated with each gate, and two striking elements on each longitudinal rod, one pair of striking elements and surfaces controlling one gate, and the-other pair controlling the second gate.

8. A device as claimed in claim 7 comprising a bracket attached to the gate and projecting beyond the hinge axis, the bracket providing the two striking surfaces.

PIETER. CORNELIS BOOTHA.

REFERENCES CITED The following references are of record in the file of this patent:v

UNITED STATES PATENTS Number Name Date 690,043 Allgier Dec. 31, 1901 1,205,208 Holland Nov. 21, 1916 1,426,062 Harrington Aug. 15, 1922 2,079,919 Mowers May 11, 1937 2,424,721 'Stover July 29, 1947