US1699266A

US1699266A - Combination tool

Info

Publication number: US1699266A
Application number: US123995A
Authority: US
Inventors: James I Applestine
Original assignee: Individual
Current assignee: Individual
Priority date: 1926-07-21
Filing date: 1926-07-21
Publication date: 1929-01-15
Anticipated expiration: 1946-01-15

Description

Jan. 15, 1929.

' J. l.- APPLESTINE COMBINATION TooL \\\....1....,: il 11 Bnl Patented Jan. 15, 1929.

JAIESI. ArPLEsTINE, on ANNAPQLIS, MARYIAND.

comsnvecrion` Toor..

Application tiled July 21j There is :if class oflools known als srrew Setters, which are engaged with a` kert of n screw, to `plaine or starrt: thescrew, as. distinguished ronrturning the screw home to` `e seat. Mechanies ksometimes useV such :i tool thoughtlessly, as e screw driver, and the tool is broken, because the somewhat delicate meehanismnsed to` grip thescrevv` in thel kerf, will not abide the heavytorque Vto which a. screw driver u is` subjected. The foregoing being understood, one object of the invention is so toconstructthe tool tibet7 when an attempt is made to. use it as 11 screw driver, the `handle Willlslip and avoid .n dangerous twisting `pressure on the bit or part which engegesthe screw.Ak v

In a number of: trades, lass4 is placed and set by Ineansof serews, bolts andI the like, end ifP tool much twist isput on `the screw driver the` glass is broken. Thisfbeingto improve generally amd to enhance the utility of devices of that sort te which the invention anpertaiifns.

I have shown preferred forms of my invention, but it understood that those forms ere presented for illustration nie-rely, and that a meehanie, ivoi'lringz` within the scope of what is. claimed; may melee s ueh changes as his slrilll` may sii-gscgresti` without departingfromithe spirit ot` the invention.

In the eeeompanydraivings f- Figure l shows insideielevatien, eserew setter wherein the presentiA improvements have been embodied Figure 2 isalangitndinal seetion ot the structure shoveniniFigrru'elg,`

Figure 3 isranelidview of the lnimlle:

Figure l is aplram oft-lie Battelle/teint?.

Figufe S- View illustrating ,the device embodied in a screw driver.

In the form disclosed in Figures 1, 2, 3 and 4, there iis-shown mhurwlle 1 having :i recess Z in itsforward end, and a chamber lees semi No. mees.

3f in its rear end, the chamber :uidlthe reeeee. being connected byV w reduced bore lg there being radial seats 5 inthe handle. 1l at: he buiseoii. the chamber 3.-, A; stemislmeatied inthe bore 4, and at times .may rotate there;` in, the stem beingr provided with a... bit T for engaging the kerf of ai screw, the bit being threaded et 8 into. the torwzird end ofi the stem 6i. The bite 7, is. slit, to` forni thinned jaws l0.` Thebit 7 has ailongitwdmah passage 1'1 eommnnieating with n transverseopeningi l2 in the-stenn, e` crees;

pint 14 being loeatedin the openingi l2 and:

heving` transverse movement therein, i the untreu STATES PATENT ori-flee; i

crosspin engaging the inner end-voir annex i palmier rochl, leeaedin the passage lh the expander rod having ai tapered end 16v. alzipted to be advanced bet-Ween the jews.` 1

ment (inthe. stem Gland has a iorwin w re cess, 119,;n whiehithe @ross pin Mcis reeeived; sothat; the cross. pin cannot slide endwiseont eff theopwing 12.; The sleeve 1N has. a rear recesshinewhichis 1 located an abnt- 1 menbwaisher 2]; dislciosecl;` about thesteiir` 6 and` held;` against longitudinal rilevamenti in. one` direction by the threaded part ofa the stem. A; compression; spring is 'lotedf about the stein 6, oneendi off the compres. sien spring bearing on the washer 211iA and theK other end of* the compression springI bearing aga-inst the hamllie 1: at: the hase of the recess 2. i i

A ratchet nieinberfh in; the ferm` ofi n nient thei'ealnng, and is` lolaieedail'ix` the chem-` ber 3. Any `means.vinnylee pinvidedffm'l oonnecting the ratchet member-- 23:. with the` stein 6,., to, rotatedtherewith.v Forfinshanee,

thestenr 6 may have :niiet sidel nadnpiied`` Aisleewel is thremded :1h18 for ed'nstf pleteg. is meent-.edI om the steun 6 for i adjnstf A closure 31 is detachably mounted, by threading or otherwise, on one end of the handle 1, the closure having an opening 32 through which the stem 6 projects, the stem terminating in a screw driver bit 33.

IVhen the tool is to be'used as a screw setter, a small screw, sometimes is held between the jaws 10, but, more frequently, the jaws 10 are inserted into the kerf of the screw, and the sleeve 17 is rotated and advanced along the stem 6, the cross pin 14 being carried forward, and the expander 15 being advanced, so that its tapered end 16 will spread the jaws 10 and cause them to hold in the kerf of the screw. The screw, held as above described, may be placed wherever needed.

It has been stated by some, that many mechanics, after they have placed the screw, thoughtlessly continue to rotate the screw by means of the jaws 10, the bit 7 and the handle 1, the tool thus being converted into a screw driver. The tool is not adapted for promiscuous use of that kind, because the bit 7 and the jaws 10 are somewhat frail; and the result is that the jaws 10 are broken, twisted out of shape, or damaged otherwise.

In order to avoid the aforesaiddamage to the jaws 10, and, indeed, to render the tool incapable of use as a screw driver, in the hand of a thoughtless person, the handle 1 is connected to the bit-stem 6 by what may be called a slip clutch. When the operator presses in the direction of the arrow A in Figure 2, as he must do when he'attempts to use the tool as a screw driver, the spring 22 will be compressed somewhat, and the handle 1 will move in the direction of the arrow A, thus easing off a little on the

interengaged elements

24 and 5 of the ratchet member 23 and the handle 1, respectively, the handle thus being permitted to rotate freely with respect to the stem 6, before torque enough is put on the bit 7 to twist the jaws 10 out of shape, or to break them. It is therefore practically impossible for an absent-minded mechanic to turn the tool into a screw driver.

When the real screw driver work is to be carried out, the operator turns the tool end for end, and uses the'bit 33. Note that at this time, the pressure is in the direction of the arrow B in Figure 2, and the ribs 24 and the seats 5 are the more securely interengaged, so that independent rotation between the handle 1 and the bit 6 will not be likely to take place. The ribs 24 and the seats 5 are so pitched or sloped, as' shown in Figure 2, that although the handle 1 can rotate somewhat readily with respect to the stem 6 when an attempt is made to use the jaws 10 for a screw driver, yet, when the bit 33 vis used to advancev the screw, relative rotation between the handle 1 and the stem 6 will be more diiicult.

The compression spring 22 determines the strength of the engagement which exists between the ribs 24 and the seats The effecw tive eilort of the spring 22 may be changed or adjusted by moving the stein 6 endwise in the handle 1. rlhis is brought about by turning the castle nut 28 on the threaded part 29 of the stem 6, the castle nut being held in place, after adjustment, by the securing element 30.

In Figure 5, parts hereinbefore described have been designated by numerals previously used, with the suix a The stem 6a carries a bit 7 which is constructed, as indicated at 34, for use as a screw driver, and not as a screw setter. The bit 7 has a shoulder 35 against which the sleeve 17a is threaded. This tool is adapted to be used in setting glass, or in other operations, in which too strong a torque will lead to trouble. Obviously, when the` operator pushes the handle 1n forward, in order to put too heavy a twist on the part 34 of the bit 7, the handle 1 will turn with respect to the stem 6a, as hereinbefore described in connection with the handle 1.

The bit, such as the bit 7a, may be supplied with a circumferential groove or seat 50, used when supplemental tools (not shown) are mounted on the bit 7a.

What is claimed is 1. A tool of the class described, comprising a stem provided at each end with means for engaging an article to be rotated, a handle on the stem, and interengaging slip clutch elements carried by the handle and by the stem, the handle being movable in one direction to weaken the engagement between said interengaging elements when one of said means is in use, and the handle being movable in an opposite direction to strengthen the engagement between said interengaging elements when the other of said means is in use.

2. A device of the class described, constructed as set forth in claim 1, further characterized by the provision of spring means for yieldably resisting the movement of the handle in the first-specified direction.

3. A device of the class described, constructed as set forth in claim 1, and further characterized by the provision of spring means for maintaining said interengaging elements yieldably interengaged, and mechanism on the stem for adjusting the spring means, said mechanism carrying one of the aforesaid interengaging elements.

In testimony that I claim the foregoing as my own, I have hereto aihxed my signature.

JAMES I. APPLESTINE.