US1638749A

US1638749A - Pruning saw

Info

Publication number: US1638749A
Application number: US76850A
Authority: US
Inventors: Guillermo F Santoyo
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-12-21
Filing date: 1925-12-21
Publication date: 1927-08-09
Anticipated expiration: 1944-08-09

Description

Patented Aug. 9, 1927.

N ED GUILLERMO r. senro'vo, or SANTArAULA, oa mronnm.

- resume sAw."

7 Application filed December 21, 1925. 'seria1'no.7e,s5o. f

This invention relates to improvements in 10 bility of cutting or tearing the clothing or flesh of such user, as well as rendering the device more compact ;non-usage." I y Itis an equally important object of the during the period of l invention to provide a handle of the charac- ;ter mentioned so constructed as to provide a vhand grlp portion for the. saw attached thereto in order that the same may be' efficientlyiused while another and elongated ortion of the handle is extended and, is,

- adapted to afford asheathing means'for the .saw'toothed edge; 1

Another novel characteristic of the invention may be stated to reside in the'provision of means for rigidly securingthe pruning saw proper in its extended or operative posi- I, tion with respect to the handle therefor, such f means being'of-a construction whereby they I p p zone end of a saw 3 therein such pruning may be quickly and readily engaged with an it. in its extended or operative I position and .yet, when desired, may be disengaged from the saw proper with equal ease and facility in order thatsuchsawmay beswung to its the handle. a, p vv;

a Otherobjects of the invention will be in part obvious and in part pointed out herein after. v

of-operation may be readily understoodby @persons skilledintheart I have in the a c 7V companying illustrative drawings, and 1n the detailed following description based thereon, set outone possible embodiment of thesame. I v In these drawings: 1 1 1 Figure 1; is a sideelevation ofthe im- 7 proved pruning A pp 7 saw proper is shown in foldedi or closed position,

i Figure 2is a similar] view -wherein the I saw proper is in extended or operativeposi- .tion, I r

Figure 3 is an enlarged fragmentary dea tail in sectiontaken ontheline-3-3 ofFig conveniently carried in the pocket of a user,w1thout haadjacent portion of thesaw proper to lock closed or; sheathed positionwith respect to:

In order that the invention and its mode p saw and handle, wherein the ure 2, showing the novel form of'locking .mcans for retainingthesaw properin its ex tended or. operative position with respect to the, handle therefor, and

Figure 4' is a transverse detail in section taken'on the lineH ofFigure lylooking I inltlie direction in which the arrowspo nt,

illustrating. the manner in whichflthe sawnumeral 1; said body portion beirigcontoothed edge is received and sheathed inastructed' of wood, metal. fibre or other suit able. composition or material, such as conditions for preference may dictate, 'one portion 1 ofsaid handle being laterally offset and vwhercbv tofper'init of the arrangement of saw being provided, with an openingin the adjacent orreceived end thereof in; order},

Jthat apivot bolt 4 may": be passed through" a'correspondingly formed opening in said 1 free:.e nd of the-hand grip "2 through the opening in 'the'sawand then locked upon 7 the reverse sideof the. hand grip .whereby ,to prevent accidental or undue disengagement of the same from the saw. 'In this way it is obvious that the pruning saw 3 will be ivotally; connected to the splitfree endof'" the han d grip 2 of the handle and by'consecurved upon itself whereby tovprovide the handle with a highly; efficient and desirable fform-offhand grip 2; the outer. or free eXe ;tremityof this offset or hand grip 2 being slit :throughoutits length asis clearly in'di cat'ed in Figures 1 and 2 by dotted lines,

quence, that the same may be swung to one of thei several positions,rthat' is, to an'open oroperative position as shown in the Figure '2 and seconchto a closed or 1noperat1ve pos1-' tionas is shown in the Figure 1, this latter position of the saw being such that the 1 ii; 'With a view' 1mm providing the pra pivotallyconnected end 7' thereof and vwith toothed edge thereof sheathed in another portion ofthe handle which will be presently v described.

:sw'in gingof such saw to its operative'posi f engagement of said 1 frusto-oonical extension "tion'asshown in the Figure 2, t he-straight edge formed end thereof will abut the correspondingly formed shoulders upon the split free end ofthehand grip'2awhereupon Said opening 5 will be aligned with a correspondingly formed'opening in one portion of said split end of the hand grlp,

An elongated casing 6"is inset "in one side 'Of the outer portion of the hand grip 2, dis- 7 l posed longitudinally thereof as clearly indicated inithe' Figure 1, the opposite ends of this housing being circularly enlarged 3S' indicated at 7, while a tapering. opening isaformed in the, inner end of the outermost jenlarged end '7 as is shown in the Figure 3. it'locl'ting bolt 8 consisting of a body por- -tion carrying circularly enlarged

extremities

9 and 10, isniountedinthe casing 6,

which as willbe noted, opens onto one side of. the hand grip 2 andthis locking bolt is pivoted transversely of itself as indicated at 11, the opposite ends, of' course, being journaled in suitable bearings formed there- 'fo-r'in adij acentportions of the opposite side walls of the casing 6. 'Theenlarged portion 10 constitutes the bolt proper of the locking 7 bolt, oneend'thereof being extended and formed with a substantially frusto-conical portion "12 adapted to be passed through the opening formed in. the bottom of theoutermost enlarged end. 7 of the casingv 6 and into snug engageinent "with the opening 5 in e j the adjacent portion of the pruning saw 3,

it"being noted in this connection, that said opening 5" is tapered to correspond withthe tapered peripheralportions of the extension '12. In this way,'snug engagement of the i extension 12 in theopening 5 will be at all v tinies insured and by consequence, the handfle 3, will he rigidly locked in its open position and" furthermore, will be prevented erati-on. The circularlyenlarged end 9 of the locking bolt 8' is snugly received in the casing 6' and is; retained in av normally exftended,positionwith respect to said end of the casing 6 through the medium of an exhpansible coil spring 13, one end. of which hasbearingupon the bottom of said oircu-,

Iarly enlarged end 7 while theopposite end "there'ofshas bearingupon the under. side of said portion 9. In this way, it will be uniderstood' that the frusto-conical extension 12 V uponthe enlarged end 10, will be normally 3 retained initsfinnermostor engagediposi tion "as respects the circularly enlarged end 7jof the casing 6 receivingit. I-Ience, with 12 in the openingf5 of the pruning saw 3,

accidental or undue disengagernent of the same with said saw' will be positively prevented,"and furthermore, because of"the' tapering interfit as between the" sides of. the

rne'nt-"witli'the adjacent edge opening 5* and the sidesof the extension 12, such locking connection will be positive and Inorder that the saw toothed edge of the saw 3 may be effectually shea'ted by the improved handle with swinging of the same to that position as shown in the Figure 1, a

of a character to lend rigidity to, the pruning-sawfi, with respec-ttothe hand grlp 2.

portion of said handle is elongated or rather, is longitudinally. extended as is indicated by the numeral 14, oneside of this elongated or longitudinally extended portionIl't being formed with a longitudinally disposed sheathing groove 15,'the outer end of which is curvedflupwardly andclosed as indicated in the Figures land 2 while the inner end thereof opens onto the adja cent portion of the hand grip 21"This sheathing groove fore, with release of the locking bolt 8- from said saw, the same may be readily-swung inwardly with respect to, the handle and the saw toothv edge thereof sheathed or engaged in thegroove 15''; When 'in this sheathed 15 is longitudinally I: V

aligned with the, pruningsawB and there- 1' 1 and folded position,"- it will be understood that the pruning saw will be rendered much example, in thepocket of a user without liability of cutting the clothing'or flesh ad.

3' acent" thereto;

1nore compact and likewise, that the same I Y *may be conveniently carried by a user for fit is likewise of importance to notethat with-arrangement of the pruning saw 3 'in folded or inoperative position asis shown in the Figure 1, the iru'sto conicalextension12 upon the enlarged end 10 will have bearing upon an adjacent edge of the pruning saw 3 as illustrated in dotted lines in Figure [1. By, consequence, it willhe appreciated that p the pruning saw 3 willfbe firmly retained in its closed position'with respect to'the extenmay' be swu ng to an open position lnerely by depressing enlarged end 9 of the;- locking bolt 8 against the tension of the coil spring we i' sio-n '14, although-when desired, the, same 13 and retracting the frusto-conic'al'exten- V 1 sion 12 from. said edge of the pruning saw designatedby the numeral 16, allowing the saw to befreely swung to anopenposition. It of course will be understood, that with swinging of the pruning saw 'anom a closed to an open position with" respect to the han-i dle 1 therefor, theYfruIsto-conical extension 12 'is moved to its outermost position by depressing the enlargedj end 9 of the looking bolt 8, in them-anner as abovedescribed, thus withdrawingthe extension 12 from e'nga'ge- I I 16 ofsaidprun 111g saw 3 and permitting the sametobe swung to'lts operat ve or open" position.

When this operative and open "position has been attained, in the manner as illustratedin the F1gure2, the opening 5 in, the pruning saw 3' willj be aligned with the opening 1 2 vention.

formedin the outermost circularly enlarged I end 7 of the casing 6, whereupon the frustoconical portion 120i the enlarged end 10 Will be immediately engaged in said opening under urge of the expansible coil spring 18 engaging with the under side of the opposite i the two during usage of such pruning saw.

Manifestly, the construction shown is capable of considerable modification, and such modification as is within the scope of my claim, I consider within the spirit of myin- I claim:

A prumng saw comprising a handlehav- I ingaa longitudinally extending groove, a pivot bolt mounted therein, a blade supported by 7 I a said bolt for swinging movements toward and away from said groove, and having a taperingopening'to one side of said bolt and 'I an inclined edge to the opposite side of the 1 bolt, a casing embedded in the handle having a tapering opening arranged to align with said first opening and a bolt pivotally mounted within said housing and having a tapering extending portion adapted to have a wedging action with saidtapering opening in the extended position of the blade and in abutting relation with said inclined edge when the blade engageswithin said groove.

In witness whereof I have hereunto set'my hand. i a a GUILLERMO F. SANTOYO.