US1493395A

US1493395A - Magazine screw driver

Info

Publication number: US1493395A
Application number: US603825A
Authority: US
Inventors: Simon Henry
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-11-28
Filing date: 1922-11-28
Publication date: 1924-05-06
Anticipated expiration: 1941-05-06

Description

May 6,'

H. SIMON MAGAZINE SCREW DRIVER Fi'led Nov. 28I 1922 2 Sheets-Sheet 1 Henry Sinwn/ INVENTOR WlTN ESSES SWW A-rroRNEY Maya 1924. Y 1,493,395

` 5. SIMONl MAGAZINE SCREW DRIVER` I Filed Nov. 2a, 1i922 '2 'sheets-shed 2 I Inni n-llllllmi fengy Sinwrc/ 4 `|NVENTOR wrrNEss'Es ATTO R N EY Patented ay v6, 1924 HENRY SINON, or SANTA aNmeALrronNrA.,

MAGAZINE SCREW DRIVER.

' Appiicatioa mea November 27s, i922. sei-iai No. 603,825.

To all 'whom t may concern:

Be it known that I, HENRY SIMON, a citizen of the United States,- residing at Santa Ana, in the county of Orange and State of California, have invented new and useful Improvements in Magazine Screw Drivers, of which the following is a specification.

This invention has reference to multiple tools, and more particularly to a magazine screw driver adaptedto contain a plurality of blades which may be selectively projected and locked in position foruse bya simple manipulation of the magazine body, without removing the blades therefrom.

In the ordinary magazine screw driver, several blades are carried loosely in the hollow handle, and in order to change the blades, it is necessary to remove the cap which closes the end Aof the handle, take out the blade, insert it in the chuck, close theA chuck, and fasten the cap again in place.

In my former application, Serial No.-

530,588, filed January 20, 1922, there is disclosed a magazine screw driver which is so constructed that by turning the tool indifferent directions, different blades may be made to move into working position where they are securely locked by a chuck and may be easily retracted into the magazine body.

The general object of the present invention is to simplify'and otherwise improve the construction shown in my aforesaid application, whereby lthe cost of manufacture is .reduced, a number of unnecessary parts arc eliminated, and other desirable new features are added which facilitate lthe manipulation and operation of the tool, one of such features being a spring to automatically retract the tool with the hollow handle. In my former construction, the screw driver blades were contained within a socalled change shell which was attached to and movable with the chuck. In the present construction, the'change shell, inthe sense in which the term is used inrrefere'nce to my former construction, has been eliminated altogether, the: body of the handle itself serving r for the purpose of selecting the blade to be used, with the result that the weight of the tool and the .size of the body are reduced and the construction thereof simplified. f

The chucking andretracting action is also rendered more rapid and convenient, the blade in use can be setmore rigidly, andin addition, the blades notin use can be kinturn of the end cap, this feature not entail- .ing4 any eXtra parts',

There are otherl featuresof construction from a consideration of the followingpdetailed' description, taken in connection with i the accompanying drawings forming a part` of this specification, with the understanding, however, that the invention is not conned to any strict conformity withy the showing of the drawings, but may be changed and i y l means .'stantly stopped lfrom rattling by a4 simple modified so long as such changes and modi;

licationsmark no material departure from the salient features of the invention as eX- pressed in theappended claims.

.In the drawings Fig. 1 is a side elevation vcfa screwdriver embodying the 4 invention and showingv one ofthe blades projectingl and clamped.

Fig. `2 is aA longitudinal* central section with some parts in elevation, the position being the same as in Fig. 1. y

Fig. 3 is a longitudinal central section at right angles to thefplanel of Fig. 2.

Fig. l is 'aplan view of onevof the screwl driver blades. y.

Fig. 5l is an'elevation of the'chuck bodyv with thechuvck cap removed.

Fig. 6 is a front end view ofthetool with a Vblade clamped inwerking position.; y

Fig. 7 is a4 front end. view ofk the tool in position forfprojectingone of the blades.

Fig. 8 is a crosssection on the 'line 8- -8 of. Fig. 1,*showingtheumean's for limiting the rotation of thefchuck cap 'on the chuck body. Y

Figs. 9 and 9F? are cross sections on the-line 9-9, Fig. 1, showing the blade'sadjusted in two different positions. v

Fig. 10 is a cross section` on the line 10 10 of Fig. 1, showingthe end cap turned to bind the blades.

Fig. 11 isa side elevation ofthe inner selective sleeve' Fig. 12 is a front end elevation'of the sleeve.

Fig. 18 is a iside detached. y

Fig. 14 -is a v,perspective view of a pressed steelyplug vwhicli'is used within the end cap.

Referring more particularly to. the drawelevation ofthe end cap f ings, Athe vtool comprises a main barrel or magazine 4 of substantially cylindrical form, and adapted to contain a plurality of

screw driver blades

1, 2 and 3, formed preferably of stamped metal of appropriate shape and rigidity and of even thickness throughout, except at the point which is tapered, and of different sizes.

The magazine 4 is provided with aforward extension or chuck body 5 which may be integral withrthe magazine, or suitably secured thereto by a close fitting frictional engagement and by a screw 6 or the like. The chuck body 5 has a reduced portion 7, the internal diameter of which is of sufficient extent to closely fit the base portion of the shank of one of the screw driver blades. The chuck body has at its forward end a still further reduced portion 8, which is solid except for a slot 9, that extends therethrough, as best seen in Fig. 5, and is located in the longitudinal center of the tool.

Surrounding the reduced

portions

7 and 8, of the chuck body, is a chuck cap 12, having its forward end contracted and inwardly bent as at 11, to closely surround the outer end of the reduced portion 8. The diameter of the portion 8, at the extremity of the chuck body, is substantially equal to the width of the screw driver blade between the notches 10. The contracted portion 11 of the chuck cap is provided with opposed notches 15 (Fig. 6), which, are each slightly wider than the slot 9, and when brought into alinement with the slot 9 in the end o'f the chuck body, as shown in Fig. 7, form a continuous passage wide enough to permit the projection of one of the screw driver lades. When the chuck cap 12 is partially rotated to bring the notches 15 out of alinement with the slot 9, as shown in Fig. 6, the contracted end 11 of the chuck cap will ride in the notches 10 of the blade and lock the same in projected position.

In order to secure the chuck cap to the chuck body so that it may rotate to a limited extent thereon, the cap is provided with a slot 13, through which a screw 14 is secured in the reduced end portion 8 of the chuck body. Preferably, a spring washer 16 is inserted between the chuck cap and reduced portion 8 to provide the required degree of friction therebetween, and said washer is held in position by the screw 14. (Figs. 1, 3 and 8). j v j A sleeve 17 is provided within the chuck body 5, and held for sliding longitudinal movement by means of a slot 18, .iich is guided on the screw 6, the forward end of the sleeve 17 being provided with an opening 19, which is of a special configuration for determiningy the selection of the blade to be projected, as hereinafter explained. The sleeve 17 is normally urged inwardly by a compression spring 20, which acts between the front end of the slee-ve and the shoulder formed by the reduced portion 7 of the chuck body. The screw 6 not only holds the magazine and chuck body from rotation, but holds the sleeve 17 from turning T0 and prevents it being yforced down into the magazine 'too far.

The blade is widened at the butt end and provided with ears 21, which, when the blade is projected, engage the flange 19", 75 formed by the openingv 19 of the sleeve, and when the blade is fully projected, with the contracted portion 11 of the chuck cap engaged in the notches 10, the sleeve 17 will' be advanced by the ears 21 of the blade 80 acting against the flange 19, thus placing the spring 20 under compression, so that, when the blade is released by a rotation of the chuck cap to bring the notches 15 into alinement with the notch 9, if the tool is held with the handle exten-ding downwardly, the pressure of the. spring 20, when suddenly released, will cause the blade to-` A snap inwardly into the casing. This is'V one of the novel features of this invention.

The rear end of the magazine 4 is closed by an end cap 22, provided with a reduced forward portion 23, having a T-shaped slot.vr`l` 24, within which extends a pin 25, that is'w secured in the rear portion of the magazine or barrel 4. rlhe longitudinal portion of the slot 24 permits the ready insertion of the end cap into position, and it is locked,h in this position, as well as restricted in its rotary movement, by a partial rotation in either direction.

The free end portions 26 of the reduced end 23 are slightly bent outwardly, making@- them resilient, so as to press against the inner surface of the barrel 4, and thus cause su'lii- 105 cient friction to retain the end cap in any position to which it may be adjusted. Y

The base portions or butts of the bladesk are held in position by a pressed steel plug 27 (Fig. 14), which has a pair of

opposed prongs

28 and 30, the former having a pointed laterally projecting tip or spur 28a, which is adapted to be received in one of the holes 29 in the end cap 22 to hold the plug therein from either longitudinal or rotative movement. Between the two prongs 2S and 30 is a web or cross bar 31, which is adapted to be received within the slots 32 in the base .j or butts of the blades, and to hold the same in position to be projected throughthe slot 9, or to be retained within the barrel 4, depending upon the angular adj'ustmentof the cap 22. The engagement between the rear ends of the blades and the bar 31 provides an interlocking connection which holds the blades from4 axial turning', and permits the blades to be turned when the end cap is rotated'. The end can and the plug 37 provide means for contro'lliiigthe movements of the rear ends of the' blades, and

constitute one of the important contributions to the construction` of my aforesaid application.

The pin 25, the transverse portion of the slot 24, and the sleeve 17 are so related as to aline the blades ready for issuance through the slot in the chuck when the end cap is turned to the extreme left, and kto turn the blades into a position where they are practically atj right angles to the said' slot when the cap is turned to the eXtreme right. y

A plurality of holes 29 are provided for the purpose of advancing the plug 27in the cap, whenever the ends of, the blades have been worn and filed down and thereby The selection of theblades is accomplished in a manner similar tol that of my former construction, the opening 19 being shaped as shown in Fig, 12, approximating a Maltese cross, being widened in two dierent directions. This opening corresponds with an opening in a similar part in my former device. Three blades are shown in the drawings. Vhen it is desired to use the middle blade, the chuck 12 and the end cap 2Q are brought into the proper position (Fig. 7), byholding the tool at both ends and turning it to the left. The vtool is then held in a horizontal position with one of the recesses 33 of the opening 19 in the lowermost position, and the three blades arranged edgewise, one flat against the other, as shown in Fig'. 9. This brings the middleblade into alinement with the

openings

9 and 15, whereupon byV tilting downwardly the tool at the 'front end, the middle blade will slide out by gravity throughthe openings 9 and 15.v

Then one of the outer blades is wanted, the tool is held with one of the recesses 34 lowermost, all three blades assuming the position as shown .in Fig. 9a, whereupon the topmost blade will be in alinement with the

openings

9 and 15, after which by tilting the tool downward, as before, the topmost blade is projected through the

openings

9 and 15.

Suitable indicia 35 is provided on the barrel, as explained in my former applica-v tion, to mark which side of the barrel should be held uppermost to correspond to each of the blades. The blades are also correspondingly marked.

The slot 9, notches 1'5, and the selected blade are brought into alinement merely by taking the chuck cap 12 between the thumb and forefinger of one hand, and thevend cap 22 between the thumb and forefinger of the other hand, and rotating the same in opposite directions, the chuck cap being ro-y l tated -to the rightand the end cap to the left. Upon the issuance. of the selected blade, a slight pull on the blade compresses the spring 20 and brings the notches 10 of the blade opposite the contracted extremity 1l of the` chuck cap. They chuck cap may then be turned vto the left 5to lockthe blade in its projected position as shown in Figs. l and 6, the vend cap 22 being by thesame movement rotated yto the right to clamp the remaining blades as shown in Figs. Band 10, and prevent the same from rattling.

.To retract the blade again into the magazine, it is not necessary to manipulate the blade itself, but by merely giving the chuck cap a quick turn back to the alined position of the notches,y (Fig. 7), the blade will snap back into the magazine, the only necessary condition beingthat the screw driver be held with the' same side'uppermost as when the bladey was projected, and with vthe body of the tool slightly tipped downward-` ly and backwardly. y

It will be understood, from the foregoing description, that this arrangement of the chuck cap and' end cap makes it possible to extend the blade ready foruse, or to 'close it ready for carrying by a single movement, that is, by taking hold of the chuck cap with one hand and of the end cap with thelother, one turn to the left unlocks the screw driver ready for use by alining the blades with the slot, and the slot with the notches in' the chuck cap. One turn to the right disalines the notches in the chuck cap with the bladereceiving slot 9, and disalines the latter with the blades, thereby positively prevent-r ing the issuancel of ythe blades from the magazine.

Inaddition to this locking action, effected by the lend cap, `it serves the additional and very important purpose of holding the vblades remaining in the magazine from rattling.v After a blade has been issued, then, by giv-L ing the cap a slight turn to the right, the blades in the magazine are turnedV 'and' wedged against the blade in use, as will' bev understood from Figs. 3 and 10. This re`- sults not only in the prevention of any rattling while using the tool, but serves toset the blade being used still more rigidly, the degree of rigidity obtained by these various means being, in fact, quite remarkable in view of the rapidity and Vease with which the tools can bel issued and retracted. v l

The same mechanism which prevents the blades from rattling when one blade is in use is also available when all blades are in the magazine. By placing the end of one finger over theopeningin the chuck and partially issuing any one of the blades, and then turning the end cap, as above described, a similar wedgingvaction of the. other two blades against the blade thus partially .is`

i the tool in relation to the blade is reduced,

there are fewer comparatively large, heavy and vexpensive parts,.the construction of the tooljis simplified, and its manipulation is rendered easier,.less time is consumed in issuing and retracting the blades, and the tools in usecan be set more rigidly and can be instantly locked against rattling, this lastresult being accomplished Without the necessity of any additional parts.

What is claimed is l. In a magazine tool, a barrel adapted to receive one or more blades, a chuck at one end: of the barrel-and having a slot extending A centrally therethrough, means for rotating av bladev Within the barrel so as to aline or disaline it With the slot, said blade When so` alined" being free to issue from the slot, and me'an'sfor locking it in its projected position.

2. In a magazine tool, a barrel adapted to receive one or'more blades,v a chuck body at one end of the barrel and having a slot eX- tending centrally therethrough, means for rotating a blade Within the barrel so as to aline or disaline it with the slot, a chuck cap having a pair of opposed notchesand rotatable to bring said notches into alinement or disalinement with said slot, the slot and notches When so alined being of suiiicient ividth to permit the complete projection of the blade, and means for locking the blade in projected position.

3. In a magazine tool, a barrel adapted to receive one or more blades, a chuck secured to one end of the barrel andhaving a slot "Y extending centrally therethrough, means for rotating a blade Within the barrel so as to aline or disaline it With the slot, a chuck cap having a pair of opposed notches and rotatable to bring said notches into alinement or disalinement With said slot, the slot and notches when so alined being ot sufficient Width to permit the complete projection of the blade,r said blade having notches engageable by the chuck cap when the latter is disalined to lock the blade in projected position.`

4j In a magazine tool, a hollow barrel, a chuck body at oneend thereof having a centrally-disposed slot, means whereby the tools may be selectively projected through said slot, a chuck cap having a pair of notches and having limited rotational movement' on the chuck body to' bring said notches into alinement or disalinement With *said slot, a spring Washer between the chuck body and chuck cap t'o hold thelatter in its adjusted position, and means for locking'the tool in' projected position.

5. In a magazine tool, a barrel adapted to receive a plurality of blades, each blade having oppositeV notches at its sides, a chuck body at one end of the barrel and having a slot extending centrally therethrough, said for locking the projected blade against retraction and means optionally movable to clamp the remaining blades Within the barrel to prevent rattling.

7. In a magazine tool, a barrel, a plurality of bladesl Within the barrel, means for permitting selective projection ot' any one' of the blades to Working position, means for clamping the blade' in working position, and means operable by the user for holding the remaining blades Within the barrel tov prevent rattling. j

8. In a magazine tool, a barrel, a plurality of blades Within the barrel, said blades being free to move within the barrel longitudinally and laterally in either of two transverse directions in response to gravity as the position of the tool may be changed,

mea-ns Within the barrel for restrictingthe movements of the blades by gravity to Cause` a selected one of the blades to be projected from the end ot' the barrel into working position, and means for simultaneously locking the projectedY blade against retractionA and clamping the remaining blades Within the barrel to prevent rattling.

9. Ina magazine tool` a barrel adapted to receive a plurality of blades, a chuck secured to the front end of the barrel and having al slot extending centrally therethrough, means' at the rear end of the barrel having a limited rotational movement. said bladesbeing constrained to rotate with said means into or out of alinement With said slot, one of said blades when so alined being free to issue from the slot depending upon which side of the tool is uppermost. and means for locking the projected blade in position.

10. In a magazine tool. a barrel adapted to receive a plurality of blades, a chuck secured to the front end of the barrel and having a slot extending centrally' therethrough,

a cap at the rear end of the barrel having a limited rotational movement therein, said blades being constrained to rotate with the cap into or out of alinement with the slot, a chuck cap having a pair of opposed notches and rotatable on the chuck to bring said notches into alinernent or disalinement with said slot, and means for locking the blade in projected position.

11. In a magazine tool, a barrel, a plurality of blades within ythe barrel, means for permitting selective projection of anyone of theblades to working position, means for locking the projected blade against retraction, and resilient means put under tension by the blade when projected for automatically withdrawing said blade when the locking means is released.

12. In a magazine tool, a barrel, a plurality of bladeswithin the barrel, said blades being free to move within the barrel longitudinally and laterally in response to gravity as the position of the tool may be changed, means Within the barrel for restricting the movements of the blades by gravity to cause a selected one of the blades to drop into position to be issued from the barrel, means for locking the projected blade against retraction, andresilient means put under tension by the blade when projected for automatically withdrawing the blade when the locking means is released.

13. In a magazine tool, a barrel, a chuck at oneend thereof, a plurality'of blades within the barrel, means for permitting selective projection of one of the blades through the chuck to working position, a chuck cap partially rotatable on the chuck, cooperatingv means von the chuck cap and blade to ,lock the projectedV blade against retraction, and resilient means put under tension by the blade when projected for automatically withdrawing said blade -When the chuck cap is released therefrom.

14. In a magazine tool, a hollow barrel having a chuck body at vone end, means whereby the tools may be selectively projected from the chuckbygravity, a chuck cap having limited rotational movement in one direction on the chuck body to lock the tool inl projected position, and a cap, on the other end of the barrel and rotatable in the opposite direction to clamp the remaining tools against rattling.` Y

15. In a magazine tool, a hollow barrel having a chuck body at one end, means whereby the tools may be selectively projected from the chuck by gravity, a chuck cap having limited rotational movement in one direction Von the chuck body tojlock the tool in rprojected position, and a cap on the other end of the barrel and rotatable in the opposite direction to rotate the blades within the barrel. f

16. In a magazine tool, a barrel adapted to receive a' plurality .of blades, a chuck see cured to one end of the vbarrel and havingla slot extending centrally therethrough, means engageable with the rear ends of the blades for rotating them within the barrel and alining them with the slot, a selected blade when so alined being -free to issue from thel slot, and means for locking saidl blade in its outermost position. l

17. In a magazine tool, a barrel adapted to receive a plurality of blades, a chuck se# cured to the front end of the barrel andfhaving a slot extending centrally therethrough, a cap at the rear end of the barrel having a limited rotational movement therein, means carried by the cap and engageable with ythe rear ends of the blades to rotate them into or out of alinement with the slot, one of said blades when so alined being free to issue from the slot, the selection being determined by gravity, and means' for locking'the blade in its outermost position.l I

18. In a magazine tool,- a barrel adapted to receive a Iplurality of blades, .al chuck at the front end of the barrel having a slotvl to allow the passage of a single blade and for clampingthe same in projected position, and means at the rear end of the' barrel engageable with the rear endsl of the blades-tov to receive a plurality of blades, each'blade having a slot in its inner end, means for 'permitting the selective projection of any one of the blades and meansat the rear'end of the barrel engageable with the slots krof the remaining blades, said meansl being @par-4 tially rotatable to a limited extent to move the blades bodily to clamp thesame against r the inner end of the projected blade and pre-` vent them from rattling.

21. In a magazine tool, a barrel having a chuck iXedly securedv at one :end thereof, said chuck havingV a slot for receivingjonel blade at a time, an end cap at the other end ofthe barrel, having a limited rotationalv movement, a plurality of blades housed within the barrel, and means for causing; said Vblades to rotate with the cap into or out of the plane of 'the slot, and meansv for selecting a blade and `causing itV to issuev gravityy through the slot by the action of upon turning the tool as a whole;

22. In a'magazine tool, a barrel adaptedr to receive a plurality of blades, a longitudinally movable sleeve within the barrel,

means for limiting the longitudinal movement of said sleeve and holding the same from rotative movement, said sleeve having an inturned flange at its forward end which defines an opening for the passage of the blades, a chuck body carried by the barrel, a spring within the chuck body yengaging the forward end ci the sleeve, the flange of said sleeve being engaged by the blade when projected, said sleeve being moved outwardly against the tensionY of the spring by by pulling upon `the projected blade, and means for locking the blade in its outermost position. i j

23. In la magazine tool, a barrel? adapted to receive alfplurality of blades, a. chuck carried at the front Vend of'the barrel hav-Y ing a slot for the passage of one blade at a time, a longitudinally movableY sleeve withinthe barrel, means for limiting theY movement of said sleeve, a spring engaging the said sleeve, the latter being engaged by the butt end of the blade when projected, said spring .being put under tension when the blade is in its projected position, whereby when Ythe chuck is released; the blade is automatically retracted within the barrel, and means forrlocking the blade in its outermost position.

f 24. In magazine tool, a hollow barrel adapted te contain a plurality of blades, an end cap having a diametrical interior web, .each of said blades having a slot in its Vbase receiving said web, a chuck having a. slot through which one blade only may issue `at aftime, said end cap having; a limited rotational movement to bring the blades into the plane of vthe slot through the chuck and rotatable in the opposite direction, after one of the: blades is either wholly or partially projected, to clamp the blades; against rattling. Y,

25. In a. magazine tool, a hollow barre adapted to contain a plurality of blades, an end; cap having a diametrical interior web, each of said blades having a. slot in its base Y,receiving said web, a chuck having a slot through which one blade only may issue atlla. time, said end cap having a limited rotational movementto bring the blades into the plane of the slot through the chuck, and means for locking the selected blade when projected.

26. In a magazine tool, a hollow barrel adapted to contain a plurality of blades, a chuck secured to the barrel and having a slot through which one blade only may issue at a time, means formed on the inside of the barrel whereby the blade to be issued may be selected by gravity, depending upon the position in which thel tool is held, an end capv having a diametrical interior web, each of saidrblades having a slot in its base receiving said web, said end cap having a limited rotational movement to bring the rrinasce Vblades into .the planeiof ythe slot `through the chuck andibeing rotatable in the opposite direction, after oineof the blades is Y either wholly or partly projected, to'cla-mp a T-shaped slot, a pin secured in the barrel and engagcable in the T-shaped slot to permit'insertion of lthe cap and limited rotationlthereor", means connecting the bla-les with the cap for rotation therewith but permitting longitudinal movement of the blades independently of lthe cap, the blades being brought into the plane of the slot of the chucklby rotation of the cap in one direction, the cap being rotatable in the opposite direction, after fone of the blades is either wholly or partly projected, te clampL the blades against rattling.

28. In a magazineJ 'tool, a hollow barrel adapted to contain a plurality of blades, .a chuck at one end of the barrel, an end cap removably secured in the other end of the barrel, a. plug removably secured within the cap andiradjustable longitudinally thereof, said plug having two arms connected by Va transverse web, each of said blades having a longitudinal central slot in its lend which receives said web, the cap and plug having a limited rotational movement to move the blades axially into the plane of the chuck slot to permit one fof them to issueor into al different plane to prevent issuance.

2%. In a. magazine tool, a. hollow barrel adapted to contain a plurality of blades, la chuck at one end of the barrelihaving a slQt for permitting the issuance of a. selected one of the blades, an end cap removably secured in the other end ofthe barrel, a plug reo removably secured within the cap, said plug i having two arms connected by a transverse web and adjustable longitudinally of the cap, each otsaid blades having a longitudinal central slot Yin its end which receives said web, the cap and plug being ro-Y tatable .in one direction to bring the blades into position where one of them may issue through the chuck slot, and rotatable in the opposite direction to clamp the remaining blades against rattling, and a vchuck cap rotatable on the chuck in a. ydirection opposite to the last mentioned rotation of the plug to lock the blade in projected position.

In testimony, that I claim the forego-ing as my own, I have hereunto aliixed my signature.

HENRY SIMON.