US969896A - Awl-grinding machine. - Google Patents

Description

W.- B. MORSE. AWL GRINDING MACHINE.

APPLICATION FILED AUG. 22, 1905.

Patented Sept. 13,1910.

'vy. B.'MORSE. AWL GRINDING MACHINE.

APPLICATION FILED AUG. 22, 1905.

' Patented Sept. 13, 1910.

S-SEEETS-SHEET 2. 0

MTA/ESSES. v

e on the several figures.

' UNIT D sTAT s PATENT OFFICE..-

WILLIAM B. MORSE, OF BEVERLY. MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MA-'.

CHINERY COMPANY, OF PATERSON, NEW JERSEY, A COZRIPORATION OF NEW J EBSEY.

To all whom it may concern:

Be it known that I, \VILLIAM B. Monsn, a citizen of the United States, residing at Beverly, in, the county of Essex and Commonwealthof Massachusetts, have invented certain Improvements in Awl-Grinding Machines, of which'the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts 1 This invention relates to machines for grinding bevels on the endsof blanks in theform of rods, such as are to form awls, needles and. the like, and the objects of the invention are to improve the construction,

speed of operation and accuracy 'of the motive parts of such machines and generally 5 to increase their efliciency and overcome v the blank back and forth sired angle and applying one end thereof at a proper grinding surface,

or by securing a tionable, the

prior difficulties heretofore met in.performing this class of work.

Heretofore groundeither directly by hand, by turning the same time to blank or blanks in a convenient clamp and then through a suitable mechanism attached to the clamp and operated by hand, give a predetermined turning movement thereto according to the number bevels desired to beand location of the ground. Both of these methods are objecfirst, because the manipulation of the blank in that Way requires great skill, if anything approaching uniformity of product is the result, and the reproduction ofa particular form unless a model is employed is almost impossible, and the second, because, the attendants hand must be constantly manipulating some part of the machine in order to efiect the proper turning of 'the blank to secure the desired form of beveled point. These defects are obviated in the present machine by providing automatic means for rotating the blank during its movement against the grinding surface employed whereby an attendant is only needed to feed, start and stop the machine, no manipulation of the'bla-nk or machine parts being necessary during the operation of forming the particular beveled point for which the machine is set. v

Further, a particular object of the ma chine 15 to providev means for rotating the two or more bevels were.

through the de-' AWL-GRINDING MACHINE.

confined in the terms used to a machine'fo'r' With ' may be used, the preferred means being the mechanism to r be described immed ately blank to be ground through a series of varying angles which series are predetermined, the rotation through one after the other of this prearranged order of angles being automatically carried forward.

To the accomplishment 4 of i the above named objects and such others as may hereinafter appear, the invention comprises the novel construction and combinations of parts hereinafter described and claimed, reference being had to the accompanying drawings, showing the preferred embodiment thereof, in which i Figure 1 is a side elevational view of the machine, Fig. 2 is a plan view of the machine,'Fi g. 3 is a detail viewof the preferred method of mounting the ratchet wheel. Fig.' his a detail showing two different crosssections that may be ground, and Figs. 5 and 6 are elevational views of two different forms of ratchet wheels and the strikers therefor. I I

Although this machine can be successfullyused for grinding beveled points for use in any connection, the-description hereinafter following. will, for simplicity, be

grinding the bevels on awl blanks. this in view, referring to the drawings,10 denotes a frame in which is suitably journaled, in bearings 11, 'a shaft 12 carrying a driving pulley 13'. Conveniently'located on frame 10, is a second shaft 14: suitably journa-led in bearings '15 and carrying at one end a gear 16 adapted to mesh with a gear 17 on shaft 12.

Any suitable. means for holding an awl blank and effecting a relative movement between it and a suitable grinding medium hereinafter.

The outer end of shaft 14 carries a wrist 18 provided with a slot 18 in which is adjustably mounted a wrist pin19, and to this pin is connected one end of a pit-man 20. Pivotally connected to the forward end of pitman '20 is a socketed member 21 in which is r'otatably secured, so as to effect a swivel connection therewith, the rounded end 22 of a slide 23, the securing means here shown being a'U-shaped washer 2% seated in a groove"'2"5 in the slide and rigidly secured to the member 21.

' The main portion of the shank of slide 23 is of angular sect-ion, here'shown as square; and on-this shank is loosely mounted a sleeve 26. havinga cylindrical surface,

' screw threaded at one end and having a. col- Thissleeve 26' isv fitted Within journal 28 formed on a sup;

lar or flange 27 atth'e other.

portingbracket 29 of. an auxiliaryframe I i 30. On the threaded end .of sleeve '26 is screwed a ratchet wheel'3 1., to be more'p'ar ticularly described here1nafter, fand thismember heldinposition and against the end of journal; 28 by a lock nut 32. nected to the forward end'o-f slide 23, by a universal joint 83, is a rod or pin 34'011 thereon. 'An awl blank fittedin the chuck is shown at 38. On auxiliary frame 30, be-

..neathchuck 35 i's-abracket 39fcapable of longitudinal adjustment with respect to the chuck by any suitable connectlon wlth the frame, and also carrving a si ipporting plate I speed as. aft H.

done by rotating movement 40' through the upperend of which the 7 fined between chuck passes, which is capable ofvertica l adjustment inthe bracket- 39 and is held in any desired position 'by any convenient means as .a cam 40'. that if sleeve 26' is turned, which 'may be ratchet wheel 31, it will carry slide itsswiveled-end and thus carrying the awl blank through a definite ang'le;

The preferred means for'mounting the means employed for etfecting this turning are the following: Suitably journaled in abracket 41 on frame 10 is an auxiliary shaft 42 substantially parallel to slide 23 which carries a striker 43, to be more particularly described hereinafter, preferably mounted in any convenient manner, as by a set screw will engage the ratchet '31. shaft 42 s driven continuously venient r .iner,

Auxiliary 1n any conso that the awl blank may be carried through both a forward and backward stroke during one the'striker, the means here shown being intermeshing bevel gears t5 and 46 mounted .011 shafts 4.2 and I l respectively.

A suitable grinding medium, which term is meant to embrace abra ding, cutting, dressing, polishing, etc. is shown at 47', located in line with the slide 23 and its connections, and preferably consists of a revolving wheel of any suitable-substance as emery, conveniently mounted on a revoluble sleeve 48 carrying a pulley 49 the whole mounted on an axle 48 which is in turn mounted in frame 50. The grindalso surrounded, as far as is a suitable supporting ing wheel 47 1s pract-icable, by' the usual "tion device (not shown) through a Con- It will thus be seen.

-23-with it, the slide turning on of Fig. 4.

on a sleeve 44 which is' rigidly but adjustably secured to the shaft -preferably .at the same.

either case, theteeth revolution of -a striking face for each 60 vfigure is provided "their striking faces v60. apart;

having a hinged top 52, and the interior of this casing is connected to a suitable sucpipe 53, whereby dirt may be removed.

If it is desired'to prevent a groove being worn-in thegrinding medium, as is convenient but not essential, means are proing't-he whole width of the surface to equal means, when any is cam 54 on a shaft 55 journaled in. a 'con veniently located bracket 56 on the frame 10 which may be driven fromthe power shaft 12 by through a train of gears'57.

of an oscillating lever 58 pivotally mounted at 59, the other sleeve 48 to force it in one direction.

Axle 48 is also provided with a spring 63 conone end. of sleeve 48 .and frame -50 which is adapted to exert a pres-. and thus provide for the continuous reciprocation of wheel 47. 1

F 1g. '0 'are'adapted to form a beveled point having the lozenge or diamond shaped crosssectlon shown at 64 1n Fig. 4:, w

eled point guard casing 51 any suitable connections, as

Cam 54 engages and forces -111 'one direction one end The ratchet wheel and'striker shown inile those 7 shown 111 Fig. 6 are adapted 0 form a bevvided that will givesaid medium a transverse reciprocatory movement thussubjectend thereof being provided,- with a slot 60 engaging apin 61 on a slide 62 inounted in frame 50, which slide engagessure on the sleeve opposite to that of cam 54 The ratchet wheel 31 shown in 5 com-.

prises two series of-teeth, eachsenes lyin in a different, plane, and each tooth being provided with a striking face which preferably forms an extension disk forming thebody. of the ratchet. As plainly shown one seriescomprises teeth a, b, 'r; and Z located. at. the four ends of two diameters forming an angle of 60 with each other, and the other series comprises but two teeth 6 and site each other. These teeth may be on two separate disks 'or" all formed'on one, but in e and f are placed centrally between teeth a"d and b-o, respectively, so that there is finally .arranged around the circumference of the disk. Striker 43 of'this with two teeth 9 and h, the former in the plane of teeth a to d, and the latter in the plane of teeth and the two series combined so that there f diametrically oppoof a radius of the e, f, with I of Fig. 6 is formed i25' 1 havmg the square cross-sectlon 65 the circumference of the disk. Striker-43' fore the blank is again brought into contact The operation of the machine in orinin length of stroke is regulated through the,

through a .23, together with the attached blank, is

turned-thereby through an 'with the grinder, this bringing the blank thatgiven above, the diiference here being is finally a striking surface each .45 around of this figure is provided with two teeth '5', the former-in the plane of teeth a to d, and the latter in theplane of teeth 6 toh, with their striking faces 45 a art.

a'beveled point having the lozenge shape cross sect ion 6.4 of Fig. t will be described first. The machine having been fitted with ratchet wheel 31 and striker 43, an" awl blank 38 is clamped in chuck 36, the desired adjustment ofpin 19 in slot 18 the depth of the bevel desired is regulated by a proper movement of sleeve 3'5, and the desired longitudinal angle of each bevel is secured proper adjustment of sliding sup.- porting plate 40 in bracket 39. Power being applied through driving pulley 13, the awl blank will be reciprocated against-the revolving grinding surface, the first forward. stroke grinding, say, bevel 10 (Fig. 4). The ratchet wheel and striker have been so posi- 'tioned that during the return stroke striker tooth g engages ratchet wheel tooth a, the length of the teeth being such thatthe slide angle of and the blank is then sent forward again and the next bevel w is ground. During the following return stroke striker g engages ratchetwheel tooth-b and immediately afterward during the same stroke striker tooth hen-- gages ratchet wheel tooth f and slide23 and the blank are thus turned through 120 bewith the grinder to form bevel y. During the next or third backward stroketeeth g and c engage and the slide and blank are again turned through 60, bevel .2 being ground on the next forward stroke. During the next or fourth backward stroke teeth 9 and d engage turning the slide and blank 60. and immediately after, as before, teeth 72. and c engage turning them a second 605 before the blank is again brought in contactagain in' position to grind bevel w, and so 7 on through the cycle just given as many times as may be required, ,when the feed is stopped, the beveled awl blank is removed and another blank inserted in'the chuck.

For grinding a beveled pointhaving the square cross-section, ratchet wheel 31 and striker 48 are fitted to the machine and the cycle is completed in a similar manner to that. on each backward stroke both teeth of the striker engage teeth of the ratchet Wheel, each engagement turning the slide 23 and its attached blank through 45, which consequently makes a complete turn of,90.

' From' this description of the operation it is seenthat the moment of time, during the r or more strikin essary to resort to more than two teeth on strikers may the chuck holding the i stituted by the means for giving eriod of; movement between "the work'- older and grinding mediums, at which the holder is given its angular movement is de t'ermined entirely by theangular osition of the striker upon its driving sha since both shafts 14 and 42 are driven at the same speed, and also thes'lide 23 is turned through one or more successive angles at this moment according as the striker is provided with one teeth in different planes, and suitably pos tioned to effect the desired result. v j For substantially all awl-bevels now com- I mercially in use, it has not been found neethe striker,

and this being the. case it is readily seen that when changing a style of bevel the ratchet alone need be removed, forihe striker-may be made in two parts each on its separate-sleeve and carrying a single tooth, as shown in Fig. 2, and withthis construction the angle between the two striker teeth may be adjusted to properly engage whatever particular ratchetwheel may be in place. It is readily seen that ratchet wheels and be designed for forming a great number of different styles of bevel points by multiplying the-number of teeth or the number of planes in which they are situated, or by proportioning the length of the teeth to the angle through which it is desired to turn the blank, and by this means blank to be beveled maybe turned through any. prearranged 10c series of.angles.- \Vith thisjview is not desired to be understood that the invention is limited to the details 'of construction and arrangement of parts-as herein described and illustrated, as is. obvious that the 105 grinding surface used may be of widely varying construction and operation, also any convenient means other than those particula rly described forv efl'ecting a relative movement between the work holder and 111 grinding surface. may be successfully employed, in adapting the machine to various conditions of use, and many other modifications within-thescopeof-the invention may be made. Also in this connection, it should 115 be understood that the I use of the term work-holder inthe claims is designed to refer to any convenient single part, or series. of parts, adapted to be rotated in'the course,- of forming the bevels desired.

Commercially, that portion only of t he machine shown in the drawingsv which is supported by the frames 10 and. 30,2. 6., the left-hand portion of Fig. 1, is manufae tured, and then mounted to operate in con: 125 nection with any existing grinding medium j already-in use, the further connection conthe grinder used .or omit-- a reciprocatory motion beinig ted as may be deemed expe isnt.

- eating said holder, and

scribed, a grindingsurface,

is claimed as new is 1. Infa machine" of 'the character described, a ork-holder, mechanism for re-, ciprocating said hol der,*-jand means for rothus described the invention what ,tating-said work-holderthrougha prede termined series of anglesduring its movement'.

2. In a machine of the character described, a work-holder,

means for reciproiheans for automat-' lcally rotating the same through a seriespf varying angles during its reciprocation.

3. In a machine of the character described, a Work-holder, mechanism for-reciprocating said holder,

angles in prearrange order during its reciprocatlon.

4. In a machine of the eharacter demeans for effecting a relative reciprocatory movement.therebetween, andmean's for ro-' tati-ng said, holder through a series of varyscribed, a grinding surface,

.tion.

ing angles in prearranged order during said movement. 4

7. In a machine of the character dea Work-holder, means for simultaneously effecting a longitudinal and transverse relative'movement therebetween, and means'for rotating said .holder through a series of varying angles during the period of longitudinal separa-,

8. In a machine of the character vdescribed, a Work-holder, actuating mechanism for imparting to said holder at reciprocatory movement, and means controlled by said actuating mechanism for rotating said holder intcrmittlngly during'its rec1procation.

9. In a machine of the character described, a driving shaft, a Work-holder, operative connections, between said shaft and holder for imparting to the latter'a reciprocatory movement, and a rotary member constructed and arranged to engage and ro-' tate said holder intermittingly during its movement;

10. In a machine of the'character described, a driving shaft, a work-holder, op-

movement.

and means for ro-- tatin the same throu h a series of var in a series of varyingangles "teeth, and a Work-holder connected to be ro-I rocatory movement, afcontinuously rotating auxiliary shaft, and means mounted thereon constructed and arranged to enga e and ro-; tate said holder intermittingly' 11. In a machine of the character (le scribed, a-driving shaft, a" Work-holder," I

operative connections between said-shaft and i 1 holder for imparting to the'lattera recipro catory movement, an auxiliary shaft connected to rotate once for each reciprocation of said holder intermittingly, and means associated With said auxiliary shaft for jen-- gaging and rotating said holder during its movement.

12. In a machine of the eharacterlf described, a ratchet Wheel, means for turning said Wheel through a predetermined series of angles, a movableWork-holder controlled as to its angular movement by the. movement of said Wheel, and means for imparting a reci-procatorymovemcnt to said holder.

13, In a machine of 'the character de scribed, aratchet Wheel, means for rotating said wheel, a work-holder connected-to be rotated by the movement of said Wheel, and

means .for 1mparting a' longitudinal -re-.

riprocatory movement. to said holder.

' l4. In a machine of the character de-v scribed, a ratchet Wheel, a rotarymember constructed to engage and rotate said Wheel, awork holder connected to be rotated] by the movement o'f-said Wheel, and means-for imparting a reciprocatory movement to said holder.

7 15.'In a machine of the character described, a ratchet wheel having teetlrin two or more 1 planes, spacedin a prearranged order, means for engaging said teeth successively to rotate said wheel, and a Workholder connected to be rotated by the movement-of said wheel.

16. In a machineof' the character described, a ratchet Wheel having teeth in two or more 'pla-nes spaced in a prearranged order, a striker, having a tooth for each plane connected to engage said ratchet wheel teeth successively to rotate said Wheel, and a Work-holder connected to be rotated by the movement of said Wheel.

17, In a machine of the character scribed, a ratchet Wheel having teeth in two or more planes spaced in a prearranged order, a striker having a tooth for each plane connected to engage saidfratchet wheel teeth successively to rotate said Wheel, means for-varying the angle between said striker tatedby the movement of said Wheeh 1S.In a machine of the character described, a Work-holder,mechanism for re ciprocating said holder, a series of striking faces operatively associated therewith, and

I a striker controlled by said" reciprocatory v movement adapted to engage said faces and having a rotate said holder. to, a grinding surface, means for adjusting 5 a 19. In a machine of the. character desaid chuck relativetofsaid surface, means scribed, agrinding surfac'e,'-a work holder, for effecting a relative movement between means for eifecting a relative movement said holder and surface, andmeans for rotherebetween, a prearranged series of striktating said holder. I

ely associated with said 22. In a machine ofv the character de- .3

ing faces operativ holder, faces successively and rotate said holder through a series 20. In a machine 0 scribed,

- means "Correction in Letters Patent No. 969,896.

' hereb ing faces located in' two or more planes.

' operatively associ a striker constructed and arranged to engage said faces successively and rotate said been a scrihed, a work-holder comprising a slide chuck universally connected therescribed, a work-holder comprising a slide and a chuck universally-connected'to one end thereof means for adjusting the height of said chuck, a pitman swiveled to the other. .end thereof, means for actuating said pitman, and means for rotating said holder during its movement.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. v

WILLIAM B. MORSE...

and a striker adapted to engage said 'of varying angles. a c

f the character de- -a grinding surface; a work holder, for efi'ectinga relative movement etween, a prearranged "seriesof strikatedwith said holder, and

holder through a predetermined series of Witnesses: k angles. p A. C. BURKHARDT,

21. In a machine of the character de: ARTHUR L. R'UssnLL.

It is hereby certified that infLe tte rs Patent No. 969,896, granted September 13, 1910, upon the applicationof William B. Morse, of Beverly, Massachusett s,;fo1'

n I I I o I I I 4 i i an improvement in Awl-Grmd ng Mach nes, an error appears in the printed specification requiring correction as follows: Page 4, line 79; the word intermittin lv a should be stricken out; and that thesaid Letters Patent should be readwith this correction therein that the same may conform to the record of the case in the Patent I Office.

' Signedand sealed this-3d day er January, A. 1).; 1911.

[ -1 E. B. Moons,

Commissioner 0 f Patents.

I a striker controlled by said" reciproeatory v movement adapted to engage said faces and having a scribed,

rotate said holder. to, a grinding surface, means for adjusting 5 a 19. In a machine of the. character desaid chuck relativetofsaid surface, means scribed, agrinding surfac'e,'-a work-holder, for effecting a .relative movement between means for eifecting a relative movement said holder and surface, andmeans for rotherebetween, a prearranged series of striktating said holder. I ing faces operatively associated with said 22. In a machine ofv the character de- 30 holder, and a striker adapted to engage said scribed, a work-holder comprising a slide faces successively and rotate said holder and achu'ck universally-connected'to one end through a series 'of varying angles. a a thereof, means for adjusting the height of 20. In a machine of the character del, said chuck, a pitman swiveled to the other.

a work holder, pend thereof, means for actuating said pit-135 means "Correction in Letters Patent No. 969,896.

' herebetween, a prearranged "seriesof striking faces located in' two or more planes operatively associ a striker constructed and arranged to enage said faces successively and rotate said holder through a predeterm angles scrihed, a work-holder comprising a slide chuck universally connected there- -a grinding surface,- for effecting a relative movement man, and means for rotating said holder during its movement.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. v

' WILLIAM B. MORSE.-.

- Witnesses:

' A. C. BUnKHARD'r,

ARTHUR L. RtrssnLL.

atedwith said holder, and

ined series of k In a machine of the character de:

It is hereby certified that infLe tte rs Patent No. 969,896, granted September 13, 1910, upon the applicationof WilliaInB. Morse, of Beverly, Massachusett s,;foi'

n I I I o I I I 4 i an improvement in Awl-Grmd ng Mach nes, an error appears in the printed specification requiring correction as follows: Page t, line 79; the word intermittin lv a should be stricken out; and that thesaid Letters Patent should be readwith this correction therein that the same may conform to the record of the case in the Patent I Office.

' Signe'dand sealed this-3d day er January, A. 1)., 1911.

[ -1 E. B. Moose,

Commissioner 0 f Patents.

It is hereby certified that in Letters Patent No. 969,896, granted September 13, 1910, upon the application of William B. Morse, of Beverly, Massachusetts for an improvement in Awl-Grinding Machines, an error appears in the printed specification requiring correction as follows: Page 4, line 79; the word intermittingly sho ild be stricken out; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 3d day of January, A. D., 1911.

[SEAL] E. B. MOORE,

Commissioner of Patents.

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