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Publication numberUS2435729 A
Publication typeGrant
Publication dateFeb 10, 1948
Filing dateMar 31, 1947
Priority dateSep 9, 1941
Publication numberUS 2435729 A, US 2435729A, US-A-2435729, US2435729 A, US2435729A
InventorsHarris Norman C, Whann Jesse P
Original AssigneePuett Electrical Starting Gate
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Race starting gate
US 2435729 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Feb. 10, 1948. J, p, w A ET AL 2,435,729

RACE STARTING GATE Origixial Filed Sept. '9, 1941 Patented Feb. 10,1948

MOI STARTING GATE Jesse P. Whann and Norman C. Harris, Lea Angela, Calif asaignora to Puett Electrical Starting Gate Corp ration, Los Angela, Call! a oorporationoi California Ori inal application September 9, 1941, Serial No. Divided and this application March 31, 1947, Serial No. 788,336 g 6 Claims. (CL 119-155) 1 Our invention relates to improvements in starting gates such as used at race tracks to start animals in races and relates in particular to a starting gate device wherein all of the individual gate elements are held in closed relation by releasable latch means adapted for simultaneous operation to instantly and simultaneously open all of the gates, therebygiving all of the racing animals opportunity for an even start. a g

It is an object of the invention to"provide a starting gate construction where the gates are all held so that possibility of failure to open is substantially avoided. Our presentstarting gate is an important improvement over starting gate devices having the ordinary forms of mechanical latches. The mechanical latch device employed in the past for holding the starting gates in closed position have sometimes failed as the result of the sticking of a latch having frictionally engaging parts. A single failure of a starting gate causes considerable confusion and obviously spoils the race improperly started by failure of the mechanism.

It is an object of the invention to provide a starting gate having gate means for closing the forward end of the starting stall, with a latch for holding the gate means in closed position, such latch comprising two engageable parts which accomplish their latching eflect by engagement of cooperating shoulders, at least one of the engageable parts being magnetically held in operative position in such manner that release of the magnetism results in a free movement of the part so held to a latch releasing ing position to an operative position and there held by an electromagnet cooperating in such a manner that the only force holding the engagement member in operative position is theforce of magnetism which passes from the electromagnet through an armature or keeper forming part of the movable engagement member. However, it is not necessary to adjust the gate means into closed position and then move the cooperating engagement members of the latch into holding position, but when the electric current of the system is turned on, the magnetically held engagement member will be moved by magnetism into its operative position. Thereafter, closing of the gate means results in latching of the engagement members of the latch, one of these engagement elements being characterized by yieldability which will permit the latching engagement. By "characterized by yieldability" we 30 the starting gate device.

A further object of the invention is to provide a starting gate device having a pair of gate elements to close each starting stall of the device.

position. Accordingly, the release of the latch is accomplished not by movement of two frictionally engaged shoulders or faces out of overlapping engagement, but by a free movement of at least one of the latch members due to gravity, as explained hereinafter in the specification, from the operative position in which it is held by magnetism.

A further object of the invention is to provide a starting gate structure having latch means wherein one of the latch elements is characterized by yleldability in a vertical direction so that I 5o lustrative purposes only:

and

and non-sticking latch means for the gates cooperating between the gate elements and the frame or supporting structure so that the gate elements may be separately and individually latched in closed position merely by swinging them from open position toward closed position, there being no care required in the bringing of the meeting edges of the gate element into a prescribed cooperative relation.

Further objects and advantages of the invention will be brought out in the following part as of the specification.

This application is a division of application Serial No. 410,142, filed September 9, 1941, now Patent No. 2,418,807, granted April 8, 1947.

Referring to the drawings which are for il- Figure 1 is a fragmentary perspective view of the upper part of a starting stall,

Figure 2 is a side elevation showing in detail the magnet, armature and the latching means,

'FigureSisadetailviewofthccatohtakenon iineHofFigurei.

has arm means or bar 42 that is rigidly mounted on said door or gate and extends at an angle thereto therefrom, this bar 42 bein braced by the member 43, if desired. To cooperate with the-gate 40 through the use of the bar 42, latch means 44 are provided, such latch means consisting, as shown in Figure 2, of an engagement member 45 supported by means of a pivot 45 on the extremity of the bar 42 and an engagement member 41 pivotally supported on the frame member 22 by means of a bracket 48, which bracket 45 likewise carries an electro-magnet 49 for cooperation with a keeper or armature 50 which projects upwardly across the front face of the electro-magnet 49 at the rearward portion of the engagement member 41. The solenoid and its armature are mounted substantially remote from the meeting edge bar 4| as shown in Figure 1. In other words, the solenoid mounting means is constructed and adapted to support the solenoid at a distance from the edge 4|, said edge being farthest from the door pivot of said left door 40 as viewed in the said figure, As will be seen by reference to these parts when viewing Figure l, the solenoid mounting means 48 is constructed and adapted to support the solenoid at a distance from the left hand door 40 from the free end of said door 40 a distance which is at least equal to the length of said pivot member 45.

As shown in Figure 2, the magnetically held engagement member 41 has a latching shoulder 5! which is rigidly held in position when the electromagnet 49 is energized. The engagement member 45 is yieldab'e so that as the end of the bar 42 moves toward the position in which it is shown, Figure 2, the forward end of the engagement member 45 will ride over and pass by the forward portion of the engagement member 41 to bring the latching shoulder 52 thereof into cooperative relation with the latching shoulder 5|, as shown. A part 22 of the framework supports the magnet, as indicated in Figure 1,

As shown in Figure 1, the vertical member 4| of the left gate 40 cooperating with the latch means 44 has thereon a locking plate or member 53 for the remaining gate 40. This member 53 has therein a notch 54 to receive the end 55 of the member 58 mounted on the other gate 40. The members 53 and 56 may be secured in the position shown by use of welds 51. The operation of the gate is preferably connected as follows:

- The right hand gate 401s first swung in the diagonal or closed position in which it is shown in Figures 1 and 3, and the left hand gate 40 is swung inward to bring the members 53 and 56 into adjacent relation with each other and to carry the latching element 45 into latching engagement with an engagement member 41 held in operative position by the magnetic flux of the energized electro-magnet49. The right hand gate 40 will be held in closed position by the locking or holding means of the left hand gate 40 represented by the notched plate 53.

When the electro-magnet 49 is deenergized, the engagement member 41 will rotate in anti-clockwise direction from position 50 into the position thereof shown by dotted lines 41', removing the latching shoulder 5| thereof from engagement with the latching shoulder 52, thereby releasing 4 the gates 45. It will be noticed that the latching shoulders, Figure 2. are disclosed in a horizontal plane above the pivot pin 44 on which the engagement member 41 is swung. According y. outward force exerted through the engagement member 45 tends to rotate the engagement member ll into releasing position, which may occurshould an excessive force be exerted against the gate means held by the latch means 44. I

In the foregoing we have described a form of invention wherein the non-sticking latch means is employed to connect gates to stationary parts of the structure.

In the claims, the term "superstructure includes all stationary parts of the starting gate including the framework, the partitions and supports therefor, but excludes the swinging doors or ates 40 and the wheels (not shown) which support the starting gate referred to by the numeral 12 in our Patent No. 2,418,807 supra. The expression in the claims "means pivotally attaching said armature to a fixed pivot adjacent to said solenoid," or a similar expression includes the attachment of said armature to the magnet or to the superstructure.

: It is to be understood that the above description is merely illustrative and in no wise limiting and that we desire to comprehend within this invention such modifications as are comprehended within the scope of the appended claims.

We claim:

1. A starting gate having a superstructure including a plurality of partitions, a pair of doors between two adjacent partitions, said doors having pivot means and being swingable from a closed position wherein the side edges of said pair of doors farthest from said pivot means are adacent to each other, to an open position where the doors are substantially parallel to each other, and holding means for holding one of said doors of said pair in closed position, said holding means including: arm means rigidly mounted on said door and extending at an angle from the plane of said door. said arm means having a free end, a member having a pair of ends, means pivotally mounting said member at one of its ends on said free end of said arm means, a solenoid provided with an armature, means attaching said solenoid to a stationary part of said superstructure, and means pivotally mounting said armature on a fixed pivot adjacent to said solenoid, the other end of said member being in engagement with said armature when said door is in closed position and during the time said armature is in engagement with said solenoid while being attracted thereby.

2. A starting gate having a superstructure including a plurality of partitions, a pair of doors between two adjacent partitions, said doors having pivot means and being swingable from a closed position wherein the side edges of said pair of doors farthest from said pivot means are adjacent to each other, to an open position where the doors are substantially parallel to each other, and holding means for holding one of said doors of said pair in closed position, said holding means including: arm means rigidly mounted on said door and extending at an angle from the plane of said door, said arm means having a free end, a member having a pair of ends, said member extending in a substantially horizontal position and in a direction transverse to the horizontal axis of said gate, at least when said door is in one of said positions, means pivotally mounting said member at one of its ends on said free end of said arm means, a solenoid provided with an armature, means attaching said solenoid to a stationary part of said superstructure, and means pivotally mounting said armature on a fixed pivot adjacent to said solenoid, the other end of said member being in engagement with said armature when said door is in closed position and during the time said armature is in engagement with said solenoid while being attracted thereby.

3. A starting gate having a superstructure including a plurality of partitions, a pair 0! doors between two adjacent partitions, said doors having pivot means and being swingable from a closed position wherein the side edges of said pair of doors farthest from said pivot means are adjacent to each other, to an open position where the doors are substantially parallel to each other, holding means for holding one oi said doors of said pair in closed position, said holding means including: arm means rigidly mounted on said door and extending at an angle from the plane of said door, said arm means having a free end, a member having a pair of ends, means pivotally mounting said member at one of its ends on said free end oi said arm means, a solenoid provided with an armature, means attaching said sole acid to a stationary part of said superstructure, and means pivotally attaching said armature on a fixed pivot adjacent to said solenoid, the other end of said member being in engagement with said armature when said door is in closed position and during the time said armature is in engagement with said solenoid while being attracted thereby, and a plate member having means adapted to engage the other door and hold the same in closed position when said other door has been moved to closed position.

4. In combination, a pair of doors, said doors having pivot means and being swingable from a closed position wherein the edges 01 said pair or doors farthest from said pivot means are adiacent to each other to an open position where the doors are substantially parallel to each other, and holding means for holding one of said doors oi said pair in closed position, said holding means including arm means rigidly mounted on said door and extending at an angle from the plane of said door, said arm means having a free end, a member having a pair of ends, means pivotally mounting said member at one of its ends on said free end oi said arm means, a solenoid provided with an armature, a stationary support, means mounting said solenoid on said support, and moms plvotally attaching said armature on a fixed pivot adjacent to said solenoid whereby the other end 0! said member being in engagement with said armature when said door having said am means is in closed position and during the time said armature is in engagement with said solenoid and while being attracted thereby.

5. In combination, a pair of doors, said doors having pivot means and beingswingable from a closed position wherein the edges of said pair of doors farthest from said pivot means are adiaeent to each other to an open position where the doors are substantially parallel to each other, and. holding means for holding one of said doors or said pair in closed position, said holding means including arm means rigidly mounted on said said armature swings in a vertical plane parallel to the plane of said doors in their open position, the other end of said member being in engageinent with said armature when said door havin "said arm means is in closed position and during 15.42116 time said armature is in engagement with fisaid solenoid and while being attracted thereby.

said solenoid mounting means being constructed and adapted to support said solenoid at a distance from the door edge farthest from the door pivot of said one door, which is at least equal to the length of the said arm means.

6. In combination, a pair of doors, said doors having pivot means and being swingable from a closed position wherein the edges of said pair-0t v doors farthest from said pivot means are adlacent to each other to an open position where the doors are substantiall parallel to each other, and holding means for holding one of said doors oi said pair in closed position, said holding means including arm means rigidly mounted on said door and extending at an angle from the plane of said door, said am [means having a free end, a member having a pair of ends, means pivotally mounting said member at one or its ends on said free end of said arm means, a solenoid provided with an armature, a stationary support, means mounting said solenoid on said support, and means pivotally attaching said armature on a. fixed pivot adjacent to said solenoid whereby said armature swings in a vertical plane parallel to the plane oi said doors in their open position, 1 the other end or said member being in engagement with said armature when said door having said arm means is in closed position and during 5 the time said armature is in engagement with said solenoid and while being attracted thereby. said solenoid mounting means being constructed and adapted to support said solenoid at a distance from the free end 0! said one door which is at least equal to the length of the said pivoted member.

I JESSE P. WHANN.

NORMAN C. HARRIS.

REIEltENCES CITED said armature swings in a vertical plane parallel to the plane or said doors in their open position,

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

UNITED STATES PATENTS Number Name Date 318,414 Burr May 19. 1885 406,629 Coulter July 9, 1889 455,126 Smith June 30. 1891 597,984 Johnstone Jan, 25. 1888 1,743,875 Bland Jan. 14. 19:0

2,108,281 Kellum Feb. 15. 1938 2,232,675 Puett Feb. 18, 1941 FOREIGN PATENTS to Number Country Date Great Britain 1M2

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US318414 *Jun 27, 1884May 19, 1885 Johist a
US406629 *Sep 15, 1887Jul 9, 1889 coulter
US455126 *Mar 4, 1891Jun 30, 1891 Electric post-office box
US597984 *Sep 30, 1897Jan 25, 1898 Is peters co
US1743875 *Dec 28, 1927Jan 14, 1930Edward Bland AlfredElectrical starter for racing dogs
US2108287 *Oct 3, 1933Feb 15, 1938Kellum Orlando EMeans for checking and recording egg production of hens
US2232675 *Aug 7, 1939Feb 18, 1941Puett Electrical Starting CateStarting gate
GB191227873A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2613638 *Jul 16, 1947Oct 14, 1952Christ William EStarting gate
US2613639 *Jul 16, 1947Oct 14, 1952Christ William EStarting gate
US3754527 *Sep 13, 1971Aug 28, 1973Jenkins CAnimal feeder
US3989286 *Oct 9, 1974Nov 2, 1976Dorma-Baubeschlag Gmbh & Co. KgDevice for arresting a door
US4005788 *Oct 1, 1975Feb 1, 1977Pepsi Co. Inc.Vehicular delivery ramp apparatus
US4095704 *Sep 16, 1976Jun 20, 1978Pepsico Inc.Vehicular delivery ramp apparatus
US6857671 *Jun 28, 2001Feb 22, 2005Paul Stefanus MillardLocking device for a door
US6902214 *Jun 19, 2001Jun 7, 2005Jerry R. SmithElectromechanical locking method and device
US20030164614 *Jun 28, 2001Sep 4, 2003Derek FlyLocking device for a door
US20040026933 *Jun 19, 2001Feb 12, 2004Smith Jerry R.Electromechanical locking method and device
Classifications
U.S. Classification119/426, 292/96, 292/251.5, 292/201
International ClassificationA63K3/02, A63K3/00
Cooperative ClassificationA63K3/026
European ClassificationA63K3/02E