Патент USA US2407333код для вставки
Sept. 10-, 1946. H.‘L. VAN VELZER 2,407,331 GLASS BULB AND FLASK HOLDER Filed March 1, 1945 llllrn k FIG.~3 INVENTOR. HARRY L.VAN VE 1.2 ER BY ATTO EYS 2,407,331 Patented Sept. 10, 1946 UNITED" STATES PATENT ' , . ' l 2,401,331 ' ' OFFICE = , GLASS BULB AND FLASK-HOLDEE , ' ~ ‘. a ' , " HarryL. Van Velzer, StateGollege, Pa. Application Marchrl, 1945, Serial‘No. 580,453‘ ' 5 Claims. (01.294-20) - ‘ ‘ (655mm under the act of Mai-c113, 1883', as amended April 30, 19281370 0. G. 75"?) 1 The invention described herein may be manu factured and used by or for the Government for, governmental purposes, without the payment to me of any royalty thereon. , - cup. 4 of approximately the same length as the body-‘la, of ‘the ‘plug. It is”of a diameter to ?t over 2a "andlint'eriorly threaded with threads complementary to those on 2a. It is adapted to receive and cooperate with 2a. Radially di rectedistuds, pins, set screws or. the like 5, ex-‘ tend. from its side walls playing freely in the The invention to be hereinafter described re lates to bulb grippingiand holding devices. There are many devices provided with resilient longitudinal slot 6 of.‘ la. " members for receiving therebetween and yield As‘ 2 is rotated it will, of course, feed 4 longi ingly holding bulbs, such as electric light bulbs, tudinally of‘ Iain one direction or the other ac and various other objects of a somewhat similar 10 cording to the direction of ‘rotation, the extent frangible nature. An objection to most of them of such feed or travel corresponding to the num is that they are not adjustable to objects of vary ber of rotations of _2. The longitudinal feed of ing sizes to any considerable extent. A- further cup, [affects the operations of the gripping and objection to many is thatthough they may be elements or features, as will be more spread to receive objects ofvincreasing size, they 15' holding fully disclosed‘ hereinaften. can not be contracted about such larger objects In‘ the opposite end of la are mounted the in or, in fact, about any object received therein. ner ends of a plurality of ?exible gripping orjaw The‘present invention is constructed and de members or elements ‘I. They vmay be secured. ‘ signed‘ to avoid the above and other objections therein to travel'therewith by any suitableand 20 and provide a simple, e?i‘cient, compact and dur acceptable means.‘ In the instance. shown,v it is ‘ able bulb'gripping and holding device which may ‘a friction ?t. Preferably, these gripping mem be produced at low cost from readily obtainable bers are leather in the form and shape known and used ‘as V-belt. Their ?exibility, preferably, materials. ' ' In order to more‘clearly disclose the construe. tion, operation and use-of thee-invention, refer‘ ence should beha-dl to the accompanying draw-r ing forming ‘part of the present application. Throughout the several ?gures of the drawing like reference‘ characters designate the same parts in the different views. ' ' Fig.1 is a central longitudinal cross section, showing only the two operative gripping parts that would appear in elevation; -- ' . Fig; 2 is a top plan view of Fig. 1, omitting the flexible gripping members and'the spreader; and Fig. 3 is a right hand end elevation of the ' ' In Fig. 1 the invention is shown in its full oper ative grippingv and holding position. Referring to the drawing in detail, I and la indicate, respectively, outer and inner tubular members of a telescopic handle. frequent and regular intervals throughout their lengths. In the construction shown, four such members are used though it will be well under stood that the invention is not in any degree lim 30 ited to four. Two, only, of the four arevshown. A view at right angles to Fig. 1 would show the In the drawing: spreader. 25 is‘increased by lateral kerfs or V-notches 8 at The outer or free endof la is closed by a tubular plug 2 hav ing a ?anged and knurled‘head 3 and an exteri orly-thre‘aded body an of reduced diameter‘ and appreciable length. Plug 2 is swivelled into the outer end ‘of la by‘one or more‘ small set screws, pins, or the like extending through the wall of la and into an annular groove or channel in 2. This, of course, locks the plug in the free end of la, and prevents its removal or any longitudi nal movement. On the other hand, it permits unlimited rotation of 2 within Ia. other two but‘ would add nothing to a clear un derstanding of the invention. Through each of these members is threaded a strong, small di ameter wire 9 such as piano wire, for instance. ' One end is anchored to the outer end of the re spective member ‘I. The opposite end is extend ed‘ through the interior of the handle and an chored to the inner end or bottom of cup 4. By stressing wires 9 jaws 1 will contract upon 40 themselves and toward each other in generally circular paths or. directions along the lines of’ least resistance-—i. e. along the notched edges. However, without devices to guide in formation 45 of the curves they willbe relatively small in di ameter, ?at and irregular and the curve of one member‘ may I not, necessarily, correspond with that of‘, any other. To avoid these di?iculties a ‘spreader has been devised comprising a rod or piston l0 and spider or head ll. Each arm or 50 branch [2 of the spider terminates in a saddle l3 adapted to straddle and receive the V edge of the respective member ‘I. ' Rod 9 extends longitudinally through outer tube l and the telescoped part of inner tube la 5.5 Mounted within la isa longitudinally movable ‘2,407,331 3 4 and between the assembled ?exible members ‘I within those members. The extreme inner end It is thought that the construction, operation and use of the invention will be clear from the of rod III is yieldingly connected to a radially ex preceding detailed description. tending web I4 of a collar or ring I5 carried by one end of the member I. That part of web I4 connected to I5 extends through and is freely However, the ring I5 being ?xed to I travels with it and is stationary with . slidable in the slot 6. relation thereto. This member I4, on the other hand, is provided with holes or perforations for the free passage of the wires 9 during any tele scoping movement of tubes I and la. A tension spring I6 connects the web It! with the adjacent end of II] urging I0 toward I4 in a retracting ac Many changes may be made in the construc tion, arrangement and disposition of the various parts of the invention within the scope of the appended claims Without. departing from the ?eld of the invention and it is meant to include all ,such within this application wherein only one g preferred form has been illustrated, purely by way of example and with no thought or intent of, in any degree, limiting the invention thereby. Having thus ‘described my invention what I claim and desire to. protect by Letters Patent is: 1. ‘In combination in a bulb holding device, a tubular handle, ?exible holding members tion. That, in turn draws the spider II against the members 1 at points only slightly beyond the outer or free end of I, thereby spreading them and maintaining them, at that point, uniformly separated or distended, the spider'and tube end cooperating in this action. _ With the parts in the position of Fig.- 1, the jaws are gripping and are securely held about mounted therein and extending therebeyond to 7 provide gripping jaws, means extending through said flexible members and therebeyond within 20 said handle, means stressing said last named means and means movable within said handle the bulb or other object which would be inclosed by" them. To loosen that grip, the head 3 is turned to‘ travel the, member 2, 2a toward the 25 jaw end. This removes strain from wires 9 and permits the ?exible members 7 to slack, extend or loosen, reducing the gripping action. It also reduces the binding friction between ‘I and the end‘ of I, as will be clear. Then the ring I'I, slid ably mounted on I and provided with radial web between said ?exible holding members and yield ably engaging and spreading said ?exible mem bers adjacent and exterior to said handle. 2. In combination in a bulb holding device, a tubular handle, ?exible holding members mounted therein and extending therebeyond to provide gripping jaws, means extending through said ?exible members and therebeyond within said handle, means stressing said last named means, means movable within said handle be I8 extending through aligned slots 6 and I9 in tween said ?exible holding members and engag la and I respectively, and connected to I6, is ing and spreading said ?exible members ad moved toward the jaw end, against the tension of spring I6. This carries the spreader out of 35 jacent and exterior to said handle, and means for releasing said engaging and holding means. engagement with members ‘I, allowing them to slacken and collapse. ‘With the jaws ‘I secured in Ia against longi tudinal movement therein, the spreader 9—I3 ill‘ the position of Fig. l, frictionally binding and looking ‘I against the end of I and de?ecting them to open or spread position, and the wires 9 under the desired tension, the curved jaws formed by the members ‘I become substantially rigid. Rigidity, however, is not imparted until the necessary tension is exerted. That tension is imparted by drawing the cup 4 toward the head 3 or plug 2, as previously stated, The requisite travel of 4 along 2a of 2 to create the desired ten sion, may be altered by various circumstances and conditions, including the degree, vamount or 3. A bulb holding device comprising a hollow handle member, ?exible gripping members se cured at one end within the handle and extending therefrom, ?exible tension means positioned within the gripping members and. secured to the outer ends of the gripping members and adapted upon tensioning to vary the conformation thereof, and means positioned on the handle and con nected to- said tension means for varying the tension on the tension means, whereby the pres sure exerted on a bulb by the gripping members may be varied. 4. The structure as claimed in claim 3, includ ing a spreader positioned between the gripping members and yieldingly adjustable with respect thereto to adapt the gripping members to engage bulbs of different sizes. extent of spread or curvature of the members ‘I 5. A bulb holding device comprising a hollow in forming the jaws for the respective use. The handle member, a plurality of ?exible gripping threaded connection amply provides for estab elements having their inner ends secured within lishing the respective desired tension under any the handle member and extending therefrom, ten and all circumstances for all uses or applications sioning elements respectively positioned within for which the device hasbeen devised. the gripping elements and connected thereto at As will be well understood, the members I and la‘ are each provided with diametrically placed 60 the outer ends of the gripping elements, adjust ing means on the handle connected to the ten slots 6 and I9 for free travel of the webs I4 and sioning elements for varying the loading thereof I8. .While pairs or" such slots have been shown to thereby vary the conformation of the gripping and are preferable, more may be used. elements, a sleeve slidably mounted on the handle Rod I 0 may be secured to web I 8 in any manner member and engaging the exterior of the gripping desired as by soldering, welding, riveting etc. In elements, a spreader movable longitudinally with assembled relation it has an easy sliding position respect to the handle and engaging the inner sur centrally within the handle and between the in faces of the gripping elements and a yielding ner edges of the members ‘I, a very gradual and connection between the spreader and said sleeve slightly increasing radial space resulting between ‘I and II), longitudinally of Iii in the direction of 70 member. the spider II from the end of Ia to the end of I, .HARRY L. VAN VELZER. due to the slightly greater diameter of I.