0a. 8, 1946. T 'R_ G. TURNER ' 2,409,003 SHUTTLE WITH RUBBER TIP Filed Nov. 3, 1945 5‘, as ' h 5 25 FIG-2 e - > - I _ FIG-5 INVENTOR R/G‘HARDG TURNER _ ATTORNEY 2,409,003 Patented Get. 8, 1946 UNITED STATES PATENT OFFICE‘ SHUTTLE WITH RUBBER TIP ~ Richard G. Turner, Worcester, Mass, assignor to Crompton & Knowles Loom Works, Worcester, Mass, a corporation of Massachusetts ‘Application November 3, 1945, Serial No. 626,461 ' 5 Claims. (Cl. 139-196) 2 1 This invention relates to improvements in loom shuttles and it is the general object of the inven tion to provide a shuttle having a relatively soft tip for the purpose of reducing wear of the shut tle picker. Shuttles are ordinarily constructed with hard ened steel tips which enter a conical shaped hole in the picker. The picker may either be fastened directly to the picker stick, or may slide along a picker spindle, but in either case the metallic 10 point causes considerable wear and distortion of 2—2 of Fig. l, I Fig. 3 is an enlarged front elevation of the stud or holder to which the rubber tip is secured, as by vulcanization, Fig. 4 is an end elevation looking in the'direc tion of arrow 4, Fig. 3, and Fig. 5 is an enlarged vertical section through the rubber tip with the stud removed taken on line 5-—5, Fig. 2. . Referring particularly to Fig. 1, I have indi the picker. This Wear occurs at the time of pick cated a shuttle box I0 along which extends a ing when the picker is forced against the shuttle tip, and also at the time of shuttle boxing when the tip strikes the picker as the shuttle is brought picker spindle H on which is slidably mounted a ' to rest in the shuttle box. It is an important ob ject of my invention to reduce the aforesaid wear a’ Fig. 2‘ is an enlarged vertical section on line picker 12. The latter has an elongated bearing H5 in sliding engagement with‘the spindle and. has a. picker head M for engagement with the shuttle. Between the bearing and head there is located a slot I5 which receives the upper end of a picker stick IS. The head 14 will ordinarily be provided with a conical hole I‘! on that side there of which engages the shuttle. During. loom .op eration the picker stick is caused to move in the direction toward the center of the loom not of the picker by providing the shuttle with a tip made of some material softer than the picker but possessed of su?icient wear resisting proper ties to resist undue wear of itself by the picker. The tip is so made that the surface of it which engages the shuttle picker will be somewhat re shown, to the right as viewed in Fig. 1,.to slide silient, and to achieve this result I prefer to make the tip of some such material as elastic vulcan 25 the picker along the spindle and impart the pick ing force to the shuttle S. On its return flight ized rubber. the shuttle enters box [0 and comes to rest against Shuttle tips are ordinarily held to the shuttle the picker. . by means of a stud inserted into the wooden body As already mentioned there are other types of of the shuttle and fastened therein in any ap proved manner, as by a cross pin; It is another 30 pickers with which my invention can be used, but the form shown in Fig. 1 is thought su?icient object of my present invention to ‘provide the tip to illustrate the relationship between my inven holding stud with a cavity or ‘cup into which a tion and a particular type of picker, but it is to part of the elastic tip extends. This cup is pref be understood that the use of my invention is erably in line with the force which is applied to the tip longitudinally of the shuttle by the picker 35 not limited to this type of picker. The shuttle S is provided with a body'20 having at the time of picking and shuttle boxing, and a ' a weft compartment 21 in which is located a weft knob of rubber on the tip end extending intothe carrier or bobbin 22 provided with a supply of cup will be temporarily compressed and tend to weft W which is unwound from the bobbin dur expand into tight holding relation with respect to the stud. By this construction the holding re 40 ing the picking flight of the shuttle. . Each end of the shuttle will have a tip designated herein lationship between the rubber part of the tip and generally at T of a form proportioned to enter the its stud is increased at those times when the tip conical hole ll in the picker head l4, but it is is subjected to picking or shuttle boxing forces. thought su?icient for present purposes to limit With these and other objects in view which will appear as the description proceeds, my inven 45 the description to one of these tips, since both tips are substantially the same. tion resides in the combination and arrangement Except for the tip the matter thus far described ' of parts hereinafter described and set forth. is of'common construction and may operate in In the accompanying drawing, wherein a con usual manner. venient embodiment of my invention is set forth, The .tip T is secured to a tip holder on stud 25 Fig. 1 is a plan View of part of a shuttle box 50 having a shank 26 peripherally grooved at 21 and showing a shuttle equipped with my improved driven into the wooden body 2|! of the shuttle and shuttle tip together with a form of picker cus held in position by a cross pin 28. The stud is tomarily used at the drop box end of fancy looms provided with a relatively thin integral flange 30 and at the replenishing end of certain types of 65 the inner surface 3| of which closely abuts the looms, 2,409,003 3 4 outer end wall 32 of the body 20. The stud is pro vided with a second ?ange 35 preferably of less provided a shuttle equipped with a tip the picker engaging part of which is non-metallic and made diameter .than the ?ange 30 and spaced from the of some soft resilient material such as rubber which will conform to the hole I1 without caus latter su?iciently to de?ne a space 36 into which ing appreciable wear of the picker. I do not wish to be limited to any particular degree of soft nes's or resilience of the tip relatively to the picker so long as the properties of the tip are such moldable material can ?ow. The ?ange 35 is pref erably slabbed or ?attened as at 31 so that it has a non-circular ‘contour. Projecting outwardly from the ‘flange “35 is a circular cup 40 integral with the stud 25 and preferably coaxial therewith that it causes little or no wearing of the picker. and having a cavity 4| which may be of the form 10 It will also be seen that the cup 40 is so located with respect to the direction in which picking indicated in Fig. 3 wherein that part“ of the .cav forces are imparted to the shuttle that the knob ity near the ?ange 35 is of larger diameter than 49 will be expanded to establish increasingly tight the mouth 43 remote from the ?ange 35. The cup holding relationship with the interior of the cup is preferably though not necessarily or ~frustra whenever the tip member is subjected to a force conical form with an outer surface 44' whicheom directed vlongitudinally of the shuttle, either at verges toward the axis of stud _25. _‘ p ’ w , _ _ the time of picking or boxing. The tip T is shown more particularly in Figs. 2 Having thus described my invention it will be and 5, and is made of a moldable elastic'm‘ate'rial, seen that changes and modifications may be made such as rubber, which can be vulcanized to the stud 25. As shown more particularly in Fig. 5 20 therein by those skilled in the art without depart ing from the spirit and scope of the invention the resilient tip is provided with ,a flat “surface 45 which closely engages the outer;suri’ace- 46 of and I do not wish to, be limited to the details flange 30. The tip has a recess 41 which ?ts closely around the ?ange 35, and the slabbed or hereinrd-isclosed, but what I claim is: ?attened parts '31 of'?anges 35 preventrelative turning of the rubber tip member with respect to the stud member 25. . The tip is also provided with another cavity 48 which receives the cup 4!! and there is extending into this latter cavity a knob 49 which ?ts into the cavity 4| of the cup. During manufacture the stud or tip holder member 25 will be heldin fixed position with 1. In a shuttle for a loom operating with a 25 shuttle propelling picker, a metallic stud on the shuttle having a cavity therein facing the picker, and a tip of'softelastic material held on' the stud and‘ha'ving a part thereof extending into said cavity. v 2. In a shuttle for a loom operating with a shuttle propelling picker, a metallic stud on the shuttle extending longitudinally of the shuttle, the outer or left end thereof as viewed in Fig. 3 a cup on the end of said stud facing away from projecting into a mold not shown which receives the rubber of which the tip is made. The rubber will be heated and vulcanized by usual methods and will flow around the cup 40 and ?ange 35 and the shuttle, and a picker engaging tip made of soft elastic material and having a part thereof extending into said cup, said tip being of conical form and so disposed that the axis thereof passes into tight holding relationship with'respect to all through said part of the tip in said cup. ‘parts of the ‘stud to the left of the ?ange 30 as 3. In a shuttle subjected to a picking force viewed in Fig. 3. The knob 49 will thus be formed 40 directed'longitudinally of the shuttle, a metallic with‘that end thereof adjacent to ‘the ?ange ‘30 stud on the ‘shuttle having a part thereof formed of somewhat larger diameter than» the neck 50 as a cup facing away from the shuttle and in line which ?ts the mouth‘ 43. with said force, and a tip of soft elastic material The tip and'stud 25 are sov related that the held to said stud and having a part thereof axis of the tip‘passes through cavity 4| 'andknob 49 so that at the time of picking and shuttle box ing any force to which the tip is subjected be cause of its engagement with the picker will compress the knob and tend to expand it, there by'establishing'a closer holding relationship be: tween knob 49 and the interior of the cup 40. Pickers are 'ordinarilyjmade of somematerial softer than the steel of which the usual shuttle tips are made, this material beingeither rawhide or a textile impregnated with a‘ binder. The tip member T shown herein will ordinarily be softer than the picker and will cause very little wear of the latter. It has been proposed heretofore to use elastic rubber in the mounting of shuttle tips, but so far asI am aware all such tips have had metallic (parts to engage and wear the picker. In the present instance there is no picker en gaging metal on_the shuttle tip, and all parts and surfaces of the tip which engagethe picker are ‘ entering said cup, said tip transmitting the pick ing force through said cup to the shuttle and said force expanding that part of the tip within the cup against the latter. 4. In a shuttle subjected to a picking force directed toward the shuttle along the axis there of, a stud on the shuttle having a cup facing away from the shuttle, and 'a, conical tip of soft elastic material held tosaid stud and having a knob entering ‘said cup, the axes of the stud, cup and tip lying along the axis of the shuttle and passing through said knob. 5. -In a shuttle subjected‘to a picking forcedi rected toward the shuttle'along the axis thereof, a stud on the shuttle having a cup thereon formed to with a frustro-conical'cavity which converges in aldirection away from the shuttle, and a tip of softelastic material supported by said stud and having a ‘knob which‘fillssaid cavity, said pick ing-force being transmitted through‘said tip ‘and softer than the picker and will conform to the 65 placing'said knob under compression tending‘to preformed hole l1. ‘ v 7 p _ __ From the foregoing it will be seen that I have expand/said knob against said cup. ‘ a V RIGHARD G. TURNER.