US1135251A - Check-controlled liquid-dispensing apparatus. - Google Patents

Description

c. s. BATDORF. CHECK CONTROLLED LIQUID DISPENSING APPARATUS.

Patented Apr. 13, 1915 3 SHEETSSHBET 1.

IIINMIIIIIIIIII IR IIIIIIIIIIIII II I II APPLICATION FILED DEC- 4, I913.

111 ventor: 86 wlo6 @419, y-

C. S. BATDO'RF.

CHECK CONTROLLED LIQUID DISPENSING APPARATUS.

APPLICATION FILED DEC. 4,1913- 1 1$5 %5]L Patented Apr. 13, 1915.

3 SHEETS-SHEET 2.

In ventor:

xima/ @MW, $zZmAM/6 Q9240, Atty C. S. BATDORF.

CHECK CONTROLLED LIQUID DISPENSING APPARATUS.

APPLICATION FILED DEC- 4, 1913.

I 1 w Patented Apr. 13, 1915.

3 SHEETS-SHEET 3.

In ventor:

om-area CHARLE$ S, BATDORF, 0F BROOKLYN, NEW YORK.

CHECK-CONTROLLED LIQUID-DISPENSING APPARATUS.

Application filed December 4, 1913.

To all whom it may concern Be it known that T, CHARLES S. BATDORF, a citizen of the United States, and a resident of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Check- Controlled Liquid-Dispensing Apparatus, of which the following is a specification.

The invention pertains more particularly to apparatus by means of which predetermined quantities of a liquid may be discharged from one container .to another or from a reservoir owned by a dealer into a tank or other receptacle owned by a customer or purchaser, or into a tank or recep tacle to be emptied into a tank or receptacle owned by a purchaser.

The invention is intended more particularly, though not exclusively, for the use of garages and dealers who supply, as a part of the business transacted, predetermined quantities of gasolene and oil to owners of automobiles, and one purpose of the invention is to provide suitable means whereby in the sale of gasolene or other liquid, both the dealer and purchaser may have a positive assurance that the predetermined quantity of the liquid purchasedhas been delivered, and

also whereby in the sale and delivery of the gasolene or other liquid the dealer, having possibly a number of employees, may ascertain who sold the gasolene and also the quantity sold, to-wit, the number of gallons during, say, any predetermined interval.

At the present time the owner of garages and places where gasolene is supplied to owners of, automobiles, have means for delivering predetermined quantities of gasolene to owners of automobiles, but these means are subject to the intelligence, will. and faithfulness, as well asthe carelessness, of employees, and it frequently happens that a person purchasing, say, three gallons of gasolene will not receive that quantity but sometimes, due to carelessness or other reason, either less than that than that quantity.

My invention compels the accurate delivery of the predetermined quantity of liquid ordered, it being impossible to continue the apparatus of my invention in use except quantity or more upon the delivery to a purchaser of the exact quantity of gasolene or the like ordered by him. Both the dealer and the purchaser may. therefore, always have the assurance of their business being transacted fairly, the.

Specification of Letters Patent.

Patented Apr. 13-, 1915. Serial 110,804,560.

The invention will be fully understood from the detailed description hereinafter presented, reference being had to the accompanying drawings, in which:

Figure 1 is an end view, partly broken away and partly in section, of a machine embodying my invention; Fig. 2 is a front elevation, artly broken away and partly in substantially central vertical section, of the same; Fig. 3 is a top view, partly broken away and partly in transverse section, of the same, and Fig. 4 is a view, partly broken away and partly in vertical section, illustrating the application of my invention to a container for delivering a predetermined quantity of gasolene or other liquid at each complete operation. of a plunger therein, the apparatus shown, aside from the features of my invention, being of known character and commonly used for delivering predeterminedquantities of gasolene from one container to another. I

In the drawings 10 designates the main casing inclosing the novel operative features of my invention, 11 a shaft extending through said casing and having on one end a crank handle 12 for its manual operation,

- 13 a pinion Wheel on the other end of said shaft, 14 a vertical plunger rod or rack-bar engaged by said pinion wheel and operable vertically therefrom, 15 a plunger secured on the lower end of said rod or bar and hav-' ing an upwardly opening valve of usual character. controlling a port therethrough, 16 a cylinder within which is formed a chamber of predetermined capacitv as one gallon liquid measure, within which the plunger 15 has its movement and which is provided at one end with inlet ports 17 for gasolene or the like, 18 a liquid discharge pipe leading from the top of the cylinder 16 for dispensing the liquid in predetermined charges to any container intended to receive it, and 19 a container supporting the casing 10 and inclosing the cylinder 16 and adapted to contain the gasolene or other liquid .in bulk to be dispensed in accurate quantities with the use of my invention, the container 19, cylinder 16, plunger 15, and

discharge pipe 18 being of known character.-

I The casing has ilat'sides, a rectangular lower front portion of the casing 10, its.

lower portion, and a semi-circular upper portion formed by a semi-circular plate hinged at one ede, at 21, to the main body of the casing. it the front of the lower portion of the casing 10 is provided a removable door 22 equipped with a suitable lock 23 and at its lower edge havin studs 24 to enter recesses formed in the bottom of the casing 10. The door 22 will be removed when it is desired to remove the tokens from the chamber 25 formed within the lower portion of the casing 10, and said door may be of any convenient form and construction and secured in any convenient manner. When the door 22 is in position closing the upper edge overlaps the front lower edge P of the semi-circular top 20 andlockssaid top in its closed position.

The upper end of the casing 10is provided with an entrance26 for disks or the like constituting keys, checks or tokens, one ofwhich is shown and numbered 27, by which the apparatus may be operated, and in the absence of which the apparatus is rendered inoperative. The casing 10 may.

be of any suitable outline and through it extends the shaft 11 which is commonly employed in connection with the container 19 for operating the plunger-rod 14. One side of the casing 10' is plain and flat and contains no features on its exterior of any special moment, and the other side of the casing 10 is formed of. the plate 28 and a disk 29, said. disk being provided with the crank handle 12 and free to be rotated on 'the shaft 11 or on a sleeve 30 which may be provided on said shaft in the event that the shaft, as originally constructed, requires to have a larger diameter in order to properlv receive the casing 10. The disk 29 on its periphery is recessed, as shown in Figs. 1 and 2 to receive the surrounding portions of the plate 28, a shoulder 31 being formed, on the disk to' match the edge 32 of the open- .ing in the plate 28 which receives said, disk.

The disk 29 is held upon the shaft 11 or on the sleeve 30, as the case may be, by means of a collar 33 fitting on the end of saidshaft' and fastened thereto in any suitable way, as by means of a screw or pin 34.

vWithin the casing 10 is provided a rotary frame 35 which has an outer drum-like portion 36 and an inner externally threaded sleeve 37 the latter fitting closely on the sleeve 30 and receiving an internally thread- 'ed frame 38 to be hereinafter referred to and which during the operation of the machine has a traveling movement imparted to it toward and from the par't 36 of the frame 35. During the rotation of the sleeve 37, the frame-38 has no -rotary movement but only a traveling movement back i and forth on the sleeve 37, said frame 38 tion of the slot to direct the keys or checks therefrom'when the same are released to descend against said portion 44. One side of theslot 41 is entirel open, so far as the frame 35 is concerned but there at is provided a pivoted arm 45 by which, during proper periods, the key or check 27 is held within the slot 41. At the side of the slot 41 opposite to the arm 45 and slightly above the upper end of the curved discharge chute 44, the disk 29 is formed with a shoulder 46 to coiiperate with the arm 45 in supporting the key or check in the upper portion of the slot 41, said shoulder 46, however, being of such slight proportions as to allow the key or check 27 to at once descend through the slot 41 after the arm 45 has been relieved from it. Those portions of the frame 35 at the opposite sidesof the slot 41 and which I designate as walls .42, 43, are' preferably of substantial thickness, as

. shownby the dotted lines in Figs. 1 and 3,

and have formed in them a through slot 46 which is on the arc of a circle, the slot being continued through the part 42 to the slot 41 and then from the slot 41 through the part 43,.and this slot 46 is in line with the normal location for the key or check 27 when the machine is in operation and also in line with an arm'47 which is integral with the disk 29 and projects inwardly therefrom. The arm 47 is slightly less in length and thickness than the like dimensions of the slot 46 and may, when the disk 29 'is rotated without a key or check 27 being therein, freely pass through said slot. In' the initial position of the parts of the machine preparatory to receivlng through the entrance opening 26 a key or check 27 the arm 47 will stand within that portion of the slot 46 within the wall 42 of the frame 35, in which position it is shown in Figs. 1 and 3, and then when a key or check 27 is introduced through the opening 26 to the slot 41 of the frame 35 and is arrestedat the position-shownin Fig. 2, the arm 47 on the rotation of the disk 29' by means of the crank 12, will be carried against said key or check and through the latter compel the frame 35 to rotate, said key or check 27 at such time barring the entrance of the arm 47 to that portion of the slot 46 within the wall 43. The key or check 27 thus 00-' operates with the arm 7 as the medium; in.

' plunger 15 in the cylinder 1,135,2a1 I at the operation of the machine, for connecting the disk 29 with the frame 35. After the frame 35 and disk 29 have rotated together during the requisite period, the key or check 46 will be released, in the manner hereinafter described, from the slot Hand descending through the same will be directed into a chute 48 extendinglaterally over the shaft 11 and then downwardly to the chamber 25 within which the keys, checks or other tokens may be collected and from which they may be removed from time to time as the owner of the machine may desire. The frame 35 is fastened to the shaft 11 by means of a screw or pin 9 or otherwise, and the disk 29 is-normally free on said shaft but rotates therewith when the arm 47 is against a key or check 27 held in the frame 35, and also during the reverse rotation of the disk 29, after the predetermined quantity of gasolene has been delivered and the key or check 27 has been released and descended to the chute 48. During the rotation of the disk 29 in one direction the arm 47 engaging the key or check 27 connects said disk and frame 35, and at this time a pawl 49 connected with the frame 35 rides along with, without specially or necessarily a ratchet tooth formed on a ring 51 fastened to said disk 29, and during the rotation of the disk 29 in the reverse direction, after the key or check 27 has left the slot 41, the ratchet tooth 50 connected with said disk will press against the end of the 'pawl or dog 19 and by cause the frame 35 to rotate with said disk and become restored to its initial position with the slot 41 directly below the entrance slot 26 in the main casing.

It may be mentioned here as a part of the operation of the machine that when the frame 35 is in its initial position prepara-' tory to receiving the key or check 27, the 9 16 will be it the bottom of said cylinder, and that said cylinder above the plunger will contain a predetermined quantity of liquid, such as gasolene, and that after the key or check 27 has been introduced to the frame 35 the disk 29 will through the handle 12, be rotated to carry the arm 47 against the key or check 27 and effect the rotation of the frame 35 and thereby the shaft 11 and through said shaft and intermediate parts cause the plunger 15 to ascend and discharge such predetermined quantity of gasolene or the like through the discharge pipe 18, this discharge being effected by the upward move- 1 ment of the plunger 15 to the upper end of the cylinder 16. Upon the discharge of the predetermined quantity of gasolene or other liquid, the frame 35 will have made a complete rotation, ordinarily, and by the means hereinafter explained, the key or check 27 at all acting against,

through the same and there will have been released and descended to the chute 48. In the construction presented the plunger 15 will, at this time, however, be at the upper end of the cylinder 16, and must be returned to the lower end of said cylinder in order that the liquid may flow above the plunger for the next sale or delivery, and to accomplish this result the disk 29 is rotated in a reverse direction so that the shaft 11 may, through the pinion 13 and rod 14, cause the v the cylinder 16. Since at this time the key or check 27 is not within the frame 35 and since the disk 29 is not directly connected with the shaft 11, I provide the ratchet tooth 50 on the ring 51 fastened to the disk 29 so that it, acting against the pawl 49,

may rotate the frame 35 and through said frame the shaft 11. The arm 17 connected with the disk 29 coiiperating with the key or check 27 serves to rotate the frame 35 in one direction, and the ratchet tooth 50 in connection with the pawl or dog 49, serves to communicate the reverse rotation of the disk 29 to the frame 35 and through said frame to the shaft 11 for effecting the descent to its initial normal position of the plunger 15 in the cylinder 16. During the rotation of the disk 2-9 and frame 35 to effect the discharge through the pipe 18 of a predetermined quantity of gasolene or the like, the pawl or dog 49 performs no duty but simply travels with the ratchet tooth 50. When the disk 29 and frame 35 are in rotation with the key or check 27 in position insaid frame, a complete rotation of the frame is compelled from the fact that the key or check projects slightly outwardly beyond the periphery of the frame 35, as shown in Fig. 2, and that on the inner wall of the main casing 10 is secured a series of spring dogs 8 which incline laterally and at their lower ends are within a groove 52 formed in said frame 35 and extending entirely around the periphery thereof. During the rotation of the shaft 11, disk 29 and frame 35 to discharge a predetermined quantity of gasolene or the like, the spring dogs 8 perform no special function and being yielding permit the key or check 27 to ride below them, but on any attempt to re verse the rotation of the disk 29 and frame 35 before the full quantity of gasolene has been discharged from the cylinder 16, the projecting edge of the key or check 27 will be carried against the end spring dogs 8 and thereby said disk and frame will be arrested in their attempted reverse rotation. After the disk 2 and of one of theplunger 15 to descend within 7 frame 35 have made a complete rotation in the proper direction to discharge the full quantlty of gasolene from the cylinder 16, the key or check 27 will have returned to its initial position and bv the'means presently to be described, permitted to descend to the outlet chute 48 and thereupon, there being no key or check in the frame 35, said frame by means of the handle 12, disk 29. tooth 50 and dog 49, may be readily reversed in motion to perform a complete rotation and ofthe time the frame 35 has performed a com- Leo feet the movement of the .bottom of the cylinder 16.

The means for holding the key or check 27 within the slot- 41 comprise, as hereinbefore described, the pivoted arm 45 and shoulder 46. The arm 45 is secured by a screw or pivot 53 ,upon a lug extending laterally from the inner edge of the frame 35, as clearly represented in Figs.i2 and 3, and this arm 45 is spring-pressed to carry its longer member inwardly through a lateral slot 54 in-said frame 35 so that the end of said member may normally rest in a position in which it may co5perate with the shoulder 46 in arresting a key or check or other token introduced into the slot 41. At

plunger to the plete rotation and the predetermined quantity of gasolene has been discharged from the cylinder 16, the arm 45' is turned outwardly' on its pivot 53 to release the key or check 27 and permit the same to descend, and this releasing movement of the arm 45 is imparted to it by the front end of a pin 154 carried by a standard 55 whichis integral with the frame 38 hereinbefore referred to. During the rotation of the frame to discharge a predetermined quantity of gasolene or the like, the threaded sleeve 37 connected therewith rotates and effects the traveling movement of the frame 38 in a direction toward the frame 35 and atthe conclu'sion of this movement thefront end of the pin 154, engages the short member of the arm and turns said arm to carry its longer member from the key or check 27, thus releasing said key or check to descend.

7 The standard has upon its upper end a plate 56 which projects frontwardly and which, during the rotation of the frame 35 to discharge the quantity of the gasolene, travels with the standard 55 and is carried below the entrance slot 26, thus forbidding the entrance of anyfurther key or-check to themachine at that time. During the reverse rotation of the disk 29 and frame 35 to restore the slot 41 in said frame to its initial position and effect the movement of the plunger 15 in the cylinder 16 to its ini- 1 tial position, the frame 38 and standard 55 travel rearwardly from the frame 35 and during such movement the'pin 154' releases the arm 45 to take its initial position, and

- plete rotation in one direction has been performed, and a in 57 carried by the standard 55 serves, y engaging a solid part of the casing, to arrest the mechanism therein after the frame 35 has performed its complete reverse rotation.

The keys or checks 27 will be designative incharacter, as by shape or color or hearing some designation, such as a number or other device, and checks bearing varying designations will indicate by such designations the respective individuals or employees to whom they have been or are to be distributed and Whose duty it will be to operate the machine and account for the keys or checks intrusted to them. One system of using the machine would be to designate the individual employees by the same numerals as those on the respective keys or checks intrusted to them, each employee receiving a set of checks for his special use and being oompelled to account for the checks or for the value represented by them. The checks or keys may not have a standard value, since the liquids to be sold or purchased will vary in value from time to time and also vary in value in respect to, say, gasolene bringing one price and oil a different price.

The invention will be substantially understood from the foregoing description without further detailed explanation. One point of the invention resides in the applicability of thefeatures of my invention to the ordinary shaft 11 of a gasolene dispensing. apparatus, thereby avoiding the construction of special apparatus to accompany my invention and rendering my invention more useful to the public in that it may be directly applied to apparatus already .in hand. When the shaft 11 is of the proper size to at once receive the casing 10 and frame 35, the sleeve 30 hereinbefore referred to will be omitted, and when the shaft 11 is less in diameter than the bore of the frame 35 a sleeve 30 will be placed thereon to. properly increase such diameter of the shaft. When the frame 35 is in its initial position shown in Fig. 2 the key or check 27 will be fed thereto and the disk 29 and said frame 35 given a complete rotation in one direction to effect the discharge of the predetermined quantity of gasolene, and thereupon the key or check having been released to descend through the chute 48, the disk 29 and frame 35 will be given a complete reverse rotationin order to properly set the plunger 15 in the cylinder 16 and cause the plate 56 to recede from below the entrance slot 26 and the pin 154 from the arm 45, the frame 35 becoming arrested in lot its initial position ready to receive a fur- 1 ther key, check or other token.

I desire it to be understood that my inven- 'tion is not limited to the details of construction hereinhefore described as illustrative of one embodiment thereof. In carrylng out 1,135,251 v t it my invention in the form illustrated, utilize the known container 19, measure or cylinder l6 and plunger 15, said cylinder and plunger constituting What may be termed a single acting pump, but I do not confine my invention to use with any special style of pump so long as the main purposes of the invention are carried into elfect.-

What I claim as my invention and desire to secure by Letters Patent, is:

1. Apparatus of the character described comprising a shaft, mechanism to be operated therefrom, a crank for the manual operation of said shaft and normally free thereof, and check or key control means interposed between said crank and shaft and comprising a primary member normally. free to 1 rotate independently of said shaft and connected with said crank, a. second rotary member rigid on said shaft and to be temsaid primary member by the introduction of a key or check between them sothat the motion of one may be communicated to the other and to said shaft, means for supporting said check or key in operative position, means for releasing said check or key after said members and shaft have completed their movement, and means for preventing said members and shaft after starting on their said movement from being reversed in rotation while the check or key is in operative position, and

' said means comprising a series of inclined spring dogs extending in the path of the check or key and yieldable to the same on its forward travel but not on any attempted reverse movement thereof.

2. Apparatus of the character described comprising a shaft, mechanism to be operated therefrom, a crank for the manual op eration of said shaft and normally free thereof, and check or key control means 1nterposed between said crank and shaft and comprising a primary member normally free to rotate independently of said shaft and connected with said crank, a second rotary member rigid on said shaft and to be temporarily connected with said primary member by the introduction of a key or. check between them so that the motion of one may be communicated to the other and to said shaft, means for supporting said check or key in operative position, and means for re leasing said check or key-after said members and shaft have completed their movement, said releasing means comprising a'threaded sleeve rigid on said shaft, an internally threaded non-rotary frame on said sleeve and a part carried by said frame to engage and move the check supporting means from the check on the completion of said movement of said members.

3. Apparatus of the character described comprising a shaft, mechanism to be operated therefrom, a crank for the manual operation of said shaft and normally free thereof, and check or key control means interposed between said crank and shaft and comprising a primary member normally free to rotate independently of said shaft and connected with said crank, a second rotary member rigid on said shaft and to be temporarily connected with said primary member by the introduction of a key or check.

between them so that themotion of one may be communicated to the other and to said shaft, means for supporting said check or key in operative position, and means for releasing said check or key after said members and shaft have completed their movement, combined with an inclosing casing for said control means having an entrance slot for the check or key, and means operable by the rotation of one of said members for closing said slot during the operation of the machine and comprising a threaded sleeve rigid with said member, an-internally threaded nonrotary frame on said sleeve and a laterally projecting plate carried by said frame to travel into the plane of said slot during the operation of the machine.

4. Apparatus of the character described comprising a shaft, mechanism to be operated therefrom, and a crank for the manual operation of said shaft in both directions and normally free thereof, associated with check or key control means interposed between said crank and shaft and comprising a primary member normally freeto rotate independently of said shaft in either direction and connected with said crank, a second rotary member rigid with said shaft and to be temporarily connected with said primary member by the introduction of a check or key between them, means for supporting said check or key in operative position, means for releasing said check or key after said members and shaft have completed their movement in one direction, and means for connecting said members on the reverse motion of said crank for restoring the mechanism to its initial position.

5. Apparatus' of the character described comprising a shaft, mechanism to be operated therefrom and a crank for the manual operation of said shaft in both directions and normally free thereof with check or key operative position, means for releasing said check or key after said members and shaft have completed their movement in one direction, and means for connecting said memllt bers on the reverse motion of said crank for restoring the mechanism to its initial position, one of said members being a disk having a laterally extending arm to engage the check or key, and the other of said members having two lateral walls with a slot between them to snugly receive the check or key and. a slot throughthem in the plane of said arm.

6. Apparatus of the character described comprising a shaft, mechanism to be operated therefrom and a crank for the manual operation (of said shaft in both directions and normally free thereof, associated with check or key control means interposed between said crank and shaft and comprising a primary mem er normally free to rotate independently 0 said shaft in either d1rection and connected with said crank, a second rotary member rigid with said shaft and to be temporaril connected with said rimary member by t e introduction of ac eck or key between them, means for supporting said check or key inoperative position, means for releasing said check or key after said meme bers and shaft have completed their movement in one direction, and means for connectin of said crank for restoring the mechanism to its initial position, combined with an inclos'ing casing for said control means having an entrance slot for the check or key, and means operable by the rotation of one of said members for closing said slot during the operation of the machine.

7.- Apparatus of the character described comprising-a shaft, mechanism to be operated therefrom and a crank for the manual operation of'said shaft in both directions and normally free thereof, associated with check or key control means interposed be-- tween said crank and shaft and comprising a primary member normally free to' rotate independently of said shaft in either direction and connected with said crank, a second rotary member rigid with said shaft and to be temporaril connected with said primary member by t e introduction of a check or key between 'them,means for supporting said check or key in operative position, means for releasing said check or key after said members and shaft have completed their movement in one direction, and means for connecting said members on the reverse motion of said crank for restoring the mecha- 5 nism to its initial position, combined with means for preventmg said members and shaft after starting on their forward move-- ment from being reversed in rotation until said forward movement has been completed.

8. Apparatus of the character described comprising a shaft, mechanism to be operated therefrom and a crank for the manual operation of said shaft in both directions and normally free thereof, associatedwith check or key control means interposed besaid members on the reverse motion porting said check or key in operative position, means for releasing said check or key after said members and shaft have completed their movement in one direction, and means for connecting said members on the reverse motion of said crank for restorin the mechanism to its initial position, sai releasing means comprising a threaded sleeve rlgid on said shaft, an internally threaded non-rotary frame on said sleeve and a part carried by said frame to engage and move the check supporting means rom the check on the completion of said movement of said members.

9. Apparatus of the character describedcomprismg a shaft, mechanism to be operated therefrom and a crank for the manual operation of said shaft in both directions and normally free thereof, associated with check or key control means interposed between said crank and shaft and comprising .a rimary member normally free to rotate in' ependently of said shaft in either directionand connected with said crank, a second rotary member rigid with said shaft and to be temporarily connected with said primary member by the introduction of a check or key between them, means for supporting Sflld' check or key in operative position, means for releasing said check or key after said members and shaft have completed their movement in one direction, and means for connecting said members on the reverse motion of said crank for restoring the mechanism to its initial position, combined with an inclosing casing for said control means having an entrance slot for the check or key, and means operable by the rotation of one of said members for closing said slot during the operation of the machine and comprising a t readed sleeve rigid with said member, an internally threaded nonrotary frame on said sleeve and a laterally projecting plate carried by said frame to travel into the plane of said slot operation of the machine.

10. A shaft, mechanfsm to be operated therefrom, a crank for the manual operation of said shaft and normally free thereof,

during the,

crank to the shaft on meaam shaft, an internally threaded non-rotary frame on said sleeve and a part carried by said frame to engage and move the check supporting means from the check on the completion of said movement of the shaft.

11. A shaft, mechanism to be operated therefrom, a crank for the manual operation of said shaft and normally free thereof, check or key control means interposed between said crank and shaft for locking the the introduction of a check or key thereto, means for supporting the check or key in operative position, means for releasing the same after the shaft has made a predetermined movement, an inclosing casing for said control means having an entrance slot for the check or key, and means for automatically closing said slot during the actuation of said mechanism from the shaft, said slot-closing means com- 20 prising a threaded sleeve rigid on said shaft, an internally threaded non-rotary frame on said sleeve and a plate carried by said frame to travel intothe plane of said slot during said movement of the shaft.

Signed at New York city, in the county of New York and State of New York, this 3rd day of December A. D. 1913.

CHARLES S. BATDORF. Witnesses:

CHAS. O. GILL, ARTHUR MARION.

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