US1355132A - Display device - Google Patents

Description

S. E. DUVECK.

Y DISPLAY DEViCE.

APPLICATION man JUNE 22.1916.

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S. E. DUVECK.

DISPLAY DEVICE.

APPucATloN man lun: 22.1916.

Patented Oct. 12, 1920.

2 SHEETS-SHEET 2.

SOLOMON ELIAS DUVElC-K, OF MONTREAL, VQUEBEC, CANADA.

DISPLAY DEVICE.

Application led June 22, 1916.

To all whom t may concern:

Be it known that l, SOLOMON ELIAS DU- VEGK, subject of the King of England, residing at Montreal, Proivince oil Quebec, Canada. have invented new and useful Improvements in Display Devices, of which the following is a specification.

My invention relates to display devices.

rThe object of my invention is to provide means for selecting and bringing into view any one of a series of cards and for automatically returning the card 4to its proper place after it has been exposed to view and read. y

A more specific object is .to provide a positive operating means for producing a tension on a spring arranged to operate the card display means `and to provide a selecting' mechanism cooperative therewith which will permit the operation of the displaying means after the desired card has been selected.

A further specific object is to provide a locking means for the selectingmechanism,

so Vthat it cannot be operated until a selected card has been returned.

further specific object is Yto provide means for so supporting the cards to be displayed that the mechanism does not become disarranged by the selection of a card and the exposure thereof to view, and `which may be positively actuated without slipping and which may be Yadjusted and balanced to meet the VArequirements of varying ,numbers of 3.5 cards.

A further Objectis Vto provide a complete operativemachine which is soadjusted that thc parts are balanced so that a minimum of power is required to aotuate any of the elements thereof.

My invention consists of the construction, combination and arrangement of parts as herein illustrated, described and claimed.

ln the yaccornpanying drawings, formino` part of this application, l have 'illustrated a form of embodiment of my invention, in which drawings similar characters designate corresponding` parts and in which:

Figure l is a vertical section taken from vthe front to the back of the machine;

Fig. 2 :is a rear elevation Vwith the back cover removed;

Fig. 3 is a fragmentary detail in side ele.- vation of a part of lthe card supporting 5LB chain.y the card supporting rods being shown yin section;

Specification of Letters Patent.

Patented Get. l2, 1920.

Serial No. 105,290.

Fig. 4 is a fragmentary detail in elevation of the upper end of the card elevating tube and a portion of its lguide rod;

Fig. 5 is a fragmentary detail in central vertical section through `the plunger of the card selecting means; i

Fig. 6 is a fragmentary detailin plan of the card selectilmr dial and adjacent parts;

Fig. 7 is a fragmentary detail in enlarged sectiontaken through the top of the front part of the casing forming part of the invention; and

Fig. 8 is an enlarged fragmental plan View of the movable plates.

Referring to the drawings l designates an approximately rectangular casing having its back wall `formed in :two removable scctions 2. The front wall of the casing is also formed of two removable sections 3, to facilitate access to the interior of the machine for adjustment of the parts and renewal of the cards.

At its base the casing l is provided with a forwardly projectingr portion 4. which is open at the top and covered by a flanged plate 5. The bell crank levers 6 have their upper ends pivoted to the cover 5. are rock-- ably mounted on shafts 7 and have their lower ends pivoted to a connecting rod 8. A connecting rod 9 has its forward end secured tothe rod 8 and its opposite end pivoted Vto an arm 10 secured on a shaft ll, which is disposed transversely of the casing 1 adjacent its bottom and carried in bearings 12 secured on the side walls of the casing.

An arm 13 has its forward end fixed on the shaft ll and its rear end pivotally secured to a vertically movable rod 14. A IieXible member l5 has one ond connected to the rear ond of the arm 13, is passed over aV pulley 1G secured to the sido of the casing l, and carries at its opposite end a` weight 17.

llltermediateof its ends the slidable rod 14 is provided with a projecting lug 18 to which is secured the lower end of a coiled spring;r 19 the upper end of which springs` is secured to a lug 2O on a vertically slidable rod 2l. carried by retaining straps 22 secured to the side wall of the casing l.

A headed pin 23 is secured to the slidable rod 21 and projects through a slot 24 formed in the slidable rod 14 to form a retaining),r means for slidably supporting the rod la and to permit its movement in one direction without movement of the slidable member 21 and at the same time to secure the two rods 14 and 21 together to cause movement of the rod 21 when the rod 14 is elevated.

The rod 21 is provided with a projecting member 25 having a rounded face lying normally in the path ot movement of a transversely slidable locking member 26, slidably retained in straps 27 on the side of the casing 1. The rear end of the member 26 is also rounded so that movement upward of the rod 21 is readily permitted, while the slidable bar 26 in its normally projected p0- sition will be struck by the projecting member 25 and act as a detent against the downward movement of the rod 21.

vertically disposed member is piv` otally connected to the slidabie member 26 and its upper end is engaged with a projecting member 29 carried by a plate 30 which is rotatal'ily supported by the upper projecting part ot the casing 1. A spring 31 normally maintains the slidable liar 26 projected to the rear to effect the locking described.

Carried by the )rejecting upper part of the casinor 1 (see hier. 7) is a bottom plate 32, on w lich is disposed the said plate 3() carrying the projecting member 2i). Disposed on the plate 30 is an upper plate 33. A shaft 34e projects through the center oi the said plates and a plate 35 is secured thereto by any suitable means. ll'he top plate 35 is disposed over the plate 233 and is surrounded by a rim 36 provided with index indicating lines.

The plates 32 and 33 are provided with circumferential openings 37 and 37 respectively which register while the corresponding openings 37 in the plate 30 do not eriartly register with these openings under normal conditions.

Carried by the )late 35 is a plunger casing S12- (see Fig. 5i, having a pointer 21) arranged to come into register with the indicating marks on the rim 36 and aise with the indicating characters 40, which are placed on a suitable card or plate disposed beneath the glass covering 41 of the upper surface of the casing 1.

Disposed in the easing 3S to have a vertical movement therein is a plunger 42, normally maintained in an elevated position by means of a spring 43 working against an expanded head 44. rlhe head 411 bears against the head of a plunger or handle 46, the upper end et' which projects outside oi the easing. The casing 3S also acts as a handle by means of which the plate 35 may be rotated to cause rotation of the shaft 34.

A recess 47 is formed in the lower end of the plunger 42 s0 that when the plunger is actuated downward the recess is engaged by the wall of one of the openings 37 of the plate 30, and the tension of the spring 31 acting on the pivoted member 2S rocks the member 29 so that the plunger 412 is locked against vertical movement'.

A suitable closure plate 4S closes the lower end of the easing 38 and forms a seat for the spiral spring -1-3A To prevent axial movement of the plunger 42 a pin 49 is carried by the plate etti and engages` the plunger 42, so that the recess 47 will always he engaged by the wall of one ot' the openings 37 of the plate 30.

Secured on the lower end of the shaft 3ft is a gear 50, disposed to mesh with a gear 51 secured on a vertical shaft 52 arranged adjacent the trent wall ot the casing 1, and carried in bearings 53, the upper bearing ot which is secured to the top part of the projecting portion of the casing 1 and the lower bearing ot which is secured to the lixcd part 54 ot the front wall of the casing. Secured on the lower end ot' the shaft 52 is :i spiral gear 55 disposed to mesh with a spiral gear 5G secured on a horizontally disposed sha-lt 57 carried in bearings (not shown) on the lside walls of the casing 1.

Carried on the shaft 57 adjacent the side walls of the casing 1 are sprocket wheels 53 over which are disposed chains 59` passing over idlers G0 in bearings 61 and idlers 62 adj ustfably carried in bearinffr 63 secured to the side wall of the easing 1. The bearings 63 are provided with slots 64 through which are disposed set screws 65 passing through the idlers G2 to form a bearing therefor so that the idlers may be moved to tighten or loosen the chains to meet the requirements of the variations of weight in the cards supported thereby.

U-Ashaped guards GG are secured to the side walls of the casing 1 by members 67 and project over the upper and lower sides of the chains for a portion of their length.

Carried by the chains 59 are bifurcate projecting members 68 (see Fig. 3) which are arranged to receive the )rejecting ends ot rods 69 carrying the display cards 70.

The arm 71 ot a common form of door check 72 is secured to a link 73, the lower end of which by means of a pin 74 is connected to the rear end of the arm 13, the lower end ot the slidable rod 14. and the end ot the flexible member 15 carrying the weight' 17.

A link 75 has its upper end secured to the lower end ot the slidable rod 21 and its opposite end is pivoted to the upper end of a link 76. The lower end of the link 76 is secured on a shaft 77 carried in bearings 78 on opposite sides of the casing l, the shaft being disposed horizontally and transversely ot' the casing. Secured on the shaft 77 adj aoent the opposite sides of the casing 1 are arms 79, the forward ends of which are connected to links 80. The upper end mamas of each link 8) is secured to the lower end of a lazy tongs 8l, pivotally secured as at 82 to the adjacent side wall of the casing.

Carried by the upper' end of each of the lazy tongs is a tube 83 surrounding a guide rod 84, the latter of which extends from the top to a point adjacent the bottom of the casing. The upper ends of the tubes 83 (see Fig. 4), are each provided with a lug 85 arranged to engage under the ends of the rod 69 which is brought into register therewith by a movement of the chain 59. An upwardly projecting portion of the casing 1 on its front side has a window 86 and adjacent thereto inside of the casing is a iixed backing 87.

A spring 88 has one end secured to the casing and its opposite end secured. to the actuating rod 8, tending to maintain the cover 5 in raised position and when the cover 5 is depressed by the weight of an operator standing thereon to produce tension tending to force the actuating rod 9 toward the front of the machine.

Springs 89 have their lower ends secured to the side walls of the casing l and their upper ends connected to the lower ends of the lazy tongs 81, the tension of which springs tends to balance the weight of the movable parts carried by the lazy tongs to render the operation thereof possible with a minimum expenditure of power.

To balance the weight of the cards 7() on each side of the idler 6() so that theV chains 59 may be easily moved, springs 9() have their lower ends secured to the removable section 2 and to the vertical shaft rel spectively and their upper ends connected to the chains As shown in Fig. 1 the bulk of the cards are on the right hand side and a tension is produced on the spring 90 on the left hand side, while the spring 9() on the right hand side s-practically compressed without tension.

In the operation of the machine the operator stands on the cover 5, overcomes the tension of the sprinr 88 and rocks the actuating rod 9 toward the front of the machine. This movement is communicated by the link 10 to the shaft 11 throwing the rear end of the arm 13 downward carrying with it the slidable member 14 and the arm 71 of the door check. At this point the energy of the door check 72 and the wei Yht 17 are stored up to be used as hereinafter described. The movement downward of the. slidable rod 14 produces a tension on the spring 19 which is exerted tending to pull the rod 21 downward, which tension is stored until the rod 21 is released. The operator still standing on the cover 5 turns the casing 38 until its pointer 39 comes into register with the index indicating element 40 desired. This movement causes rotation of the shaft 34 carrying the gear 50 and the consequent rotation of the shaft 52 and the shaft 57. causing rotation of the sprocket wheels 58. Rotation of the sprocket wheels causes movement of the chain 59 and brings to a point over the lugs 85 of the tubes 83 the card T() corresponding to the index character into register with which the pointer 39 has been brought by the operator.

The operator then presses on the plunger 46, overcoming the tension of the spring 43 and forcing the lower end of the plunger 42 through the plates 38, and The openings 87 in the plate 30 being slightly out of register this plate is slightly rocked, causing movement of its projecting part 2 and the consequent rocking of the pivoted member 28 to which is connected the slidable member 26. This movement causes thc retraction of the slidable member 2G, from beneath the end of the projecting member on the slidable rod 21. The tension of the spring 19 is then free to act upon the slid-ahhx rod 2l forcing it downward carrying with it the link 75 and causing a rocking of the link 7G. The lilik T6 being sccured on the shaft 77, the shaft is rocked and carries with it the arm 79 and the lower ends of the lazy tongs 81, causing the lazy tongs to be extended and to carry upward the .tubes 83. The lugs of the tubes engaging under the ends of the rods 69 of the selected card 7 0, the card is carried upward between the backing 87 and the window 88, through the latter of which it may be read by the operator.

At this stage -the plunger 42 is retained in locked position as the recess 47 is engaged by the wall of the opening 37 in the plate 30, so that the chains can not be moved to bring another card into position to be raised or to cause disarrangement of the cards or their Supporting and moving mechanism.

The operator having read the exposed card steps from the cover 5. permitting the exertion of bhe tension of the spring 88 to return the cover to its elevated position and also permitting the utilization of the stored energy of the door check 'T 2. and thc weight 17 to act on the slidable rod 14. At this point the headed pin 23 has engaged the lower end of the slot 24 and the energy of the actuating members described will force the slid able member 14 upward carrying with it the slidable member 21. The rounded side of the projecting member 25 of the slidablc member 21 will ride against the adjacent rounded end of the slidable member 26 and will overcome the tension of the spring 81 rocking the member 29 slightly causing the movement of plate 80 to release the plunger 42` so that the index may be set to another indicating character. At the same time the upward movement of the slidable member 21 carries the link 75 upward rocking the link 76 and the shaft 77 so that the arms T9 are carried upward and their movement communicated to the lazy tongs to retract tbe same and also the tubes H3 returning llle selected card 7() to its original position.

llaving thus fully described my invention, what I claim as new and desire to secure by Letters latent is:

l. display device comprising the combination oi' a plurality ol cards, rods secured transversely of the cards, endless chains arranged on each side of the cards beneath the rods, a pair of oppositely opposed springs for each chain, said. springs each having one end fixed and its opposite end fixed to the chains to balance the Weight of the cards, means for moving the chains to select a particular card and means for elevating and lowering the selected card.

2. display device comprising the conn binalion ol a plurality ot cards, a pair of spaced chains arranged to support the cards, means i'cr supporting the chains, sprocket wheels arranged to move the chains, a horizontal shaft disposed through the sprocket wheels, a spiral. gear secured on the shaft, a vertical shaft, a spiral gear on said vertical shaft arranged to mesh with the rst mentioned spiral gear, means for rotatingr said vertical shaft to select a desired card, and means for elevating and retaining the selected card.

3. A display device comprising the combination of a plurality of cards, means Jfor supporting the cards, means for movingr the supporting means to select a desired card, a

vertically operable member arranged to en gage the selected card, and an extensible member secured to the vertically operable member, means for extending and retracting the` extensible member, and means for conn terbalancing the weight and friction of the extensible member and its connected parts.

4. A display device comprising the combination or' a plurality of cards, means for supporting the cards, means for moving the supporting means to select a desired card, extensible means for elevating the selected card, means for actuating the extensible means comprising a rockable member, a vertically movable member connected with the rockable member, a second vertically movable member slidably connected with the verticall y movable member, a spring connected to both of said members, means for producing a tension on the spring, and means for raising the second vertically movable member when the tension is removed.

5. A display device comprising the combination of a plurality of cards, means for supporting the cards, means ioi moving the supporting means to select a desired card, extensible means for elevatingthe selected card, means for actuating the extensible means comprising a roelrable member, a verA tically movable member connected with the rockable member. a second vertically movable member slidably connected with tbe vertically movable member, a spring connected to both o'l said members, means for prmlucing a tension on the spring, and a door check and a Weighted flexible member secured to the second vertically movable member.

6. A display device comprising the combination of a plurality of cards, means for supporting the cards, card moving means for moving the supporting means to select a desired card, a pair of vertically movable tubes, means carried by said tubes for engaging the selected card, lazy tongs connected to the lower ends of said tubes, means for actuating said lazy tongs whereby said tubes may be raised and lowered and means qieratively connected to said card moving means for retaining said lazy tongs against movement substantially as and for the purpose specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribin Witnesses.

SOL MON ELIAS DUVECK.

Witnesses:

FRANCIS K. BATES, ANDREW ARMSTRONG.

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