US855773A - Cam. - Google Patents

Description

nARrFoRncoNNEcTIoUT, As'sreNoR To PRATT a BENG'i M. W. nANsoN, 0F l y or HARTFORD, coNNEc'ricUr, `A CORPORATION WHITNEY COMPANY, or NEW JERSEY.

' CAM.

' `Specification of'l'ietters Patent.- -piiimia site Apel 25.1906. sti-iai No. 313,637.'

No. 855,773. f atate June 4,1907,

Referring to the drawings, the vnumeral 1 designates a shaft to which is keyed orotherwise-secured acarrier or drum 2,'having a series of parallel T-slots 3 extending lo dinally of its periphery, and separate by lands 4, said slots being yin the exemplificaltion .given twenty-four degrees apart. ln the slots the T-bolts v5 are placed, the stem of eachbolty being threaded to receive'a nut 6. Referring now to Fig.'3 the numeral 7 designates a cylinder from which the ca m hereinafter described is formed. This cylinder is preferably of cast-metal and at one end 8 is reinforced externally and internally at 9, and provided with lugs which it'may be secured to the. a lathe for theiinishjng or tion, the end S being removed and discardedl after said operation. ter the cylinder -7 hasbeen machined it is placed, in a' jig, and a series of sets 'of perforations 11 consisting of two to eachset, are formed Vtherein at the desired distance apart, and the cylinder is then removed fromsaid jig and secured to a fixture by bolts-passi through-said-per'r'orations `11' While he d .by said fixture `the blank-is slotted'. at 12 on spiral lines of the de- 1 '0 alllywhom/ t may concern.:I L Beit known that'l, BENGT-M. W. HANsoN, a citizen of Sweden, having declared my -intention of becominlg a citizen of the United' States, residing` at artford, in the county of Hartford and State of Connecticut, .have invented certain new and useful Improveams, of which the following is a ments in C specification. A

This invention relates to cams more especially designed for employment in connec-l 'tion with' the turret-slides of metal-working mac es, although not limited tov any speciiic use, nor to-any particular-art. One of the principalobjects of the invention is the provision in connection with a carrier having .parallel slots, of a cam having a series of openings which due to their arrangement afford means whereby a maximum number of adjustments upon vthecircumference of said carrier may bereadily accomplished. In the devicefshown this result is A accomplished by providing the cam with a series of sets of perforations, each-set composed of two holes, altho h any suitable number of holes may be emp oyed.

A further object of the invention is the provision of a cam manufacturedin a` eculiar manner-'from a tube or hollow cygnder, as will be hereinafter explained. jg Other objects of the invention will be 'set i forth in the following description. 'In the accompanying drawings, Figure `1r is an end view of a cam-drum and cam embodying the present invention, 2 isa side elevation, parts being brokenaway. F' 3 is a longitudinal vertical section of the tu e or vcylinder from which the cams are, vformed, the part Lby which' the cylinder vis driven from 'the faceplate of a lathe while under o' the finishing process being remove ig. 4 isa ri ht-hand endl'view of Fig. 3. Fig. 5 `is a" 'agramfshowingthe manner in which the vtwo'pairs of cam-plates are formed from a cylinder. Fig. 6 is a similar view illustrating the manner of producing three sets of cam-plates from a cylinder ofthe same diameter as that 'shown in dotted lines, Fig; 5 Fig. .7`is an enlarged transverse section of Fig; 2, illustrating by dot-'and` dash lines themanner inwhlch thecam is adjusted on its carrier or l vided transversely to form :other cams of 'less .Like numerals designate similar parts4 .lengthifdesired. l'nFigthe dot-and-dash throughoutthe several views. y .line'Aa again indicates the circumferencecof face-plate of transverselyL *asl at 131 accordi to the lnumber'orl sets ofcam-plates 14 esired of any length required. I

ln Figs. 54 and 6 illustrations are given showing how the cylindrical blank 7 may be -divided 'into any desired number :of camlates. Referring to Fig;v 5 the dimension indicated by the dot-and-dash line A is equal to the .circumference of thecylinder blank is -drilled to form setsof A11, the distance between each pair being, for instance, twelve degrees (12) of the circumference of the blank, (or a multiple of said twelve de ees) and the distance betweenV one set of ho es and another set of holes being in de `ees (24) or a multiple thereof. With a cyiider of the dimensions indicated by said linejAtwo sets of cam-plates'eac of/ an arc pairs .o holes-` (1'80)will befo ed Whenthe blank is 'slot- 'tedl in'the manner described and is divided as at 13 ar'idthese platesmay be further di- UNrrRnj STATES PATENT" organics..

itul or projectins 1 0 by f machining operasired angle",` andfis 'subsequently severed I apd the hole of each y said illustration twenty-four IOO of about one hundred and eighty degreesV will be evident that V -holes the cylindrical blank, .and in this instance said blank is slotted in a similar manner as in-Fig. 5, but has a series of three slots '12", and is divided at 15, and 152 into'three sets of like cam-plates 14 each having an arc of 'about one hundred-and twenty degrees plate upon the drum of twelve degrees (12 i l location of the cam-plate'upon the drum may ever, be substituted for the slide without removing the said bolts from the vslots.` By sliding said bolts out of the slots and inserting them in other slots any desired -be obtained. Y

Variation'in the number and location oi ,the holes 11 may be made thereby making iiner adjustment of the cam possible, without departure from the invention. Designated by 16 is a slide having a rollerstud 17 adapted to be engaged bythe camplate and said slide may carry'a turret or other device. Various devices inlay, howwithout departurefrom the invention.. y

Changes may be made-in various details of the invention which is not limited specifically to the precise subject-matter and details dei scribed..

Having thus described my invention, what 'Iclaimis: l l

1. A cam having sets of openings, combined with'a carrier, and securing-devices on said carrier adaptedto be passed through corresponding members of any 'of said sets of y openings. 2. A cam having sets of openingsJ the perforations-of-each set being space a certain number of degrees apart, combined' with. a carrier ha ving guides, each pair of guides being spaced apart, to a multiple of the 'degree between the .cam-openings of each set; landsecurin-g-devices mounted in the guides of the carrier; 3.4 A cam having sets of openings, the openingsmf each set spaced a certainnumber of degrees apart, com ined with a carrier Vhaving slots, each pair o which is spaced a certain' number of degrees a art to constitute a multiple of the degrees etween the openings of each set; bolts seatedin the slots, and the stems ofwln'ch will enter any opening of each I.

slot in the "cam and means applied to said bolts for securing 4the cam in place. l

'4. The combination, with a `carrier having T-slots, of bolts having heads adapted to enter said T-slots; a cam fitted tothe carrier,.and havingseparated sets of o enings through any of which the stems of t e bolts may pass; and devices applied to the bolts for securing the cam to said carrier.

5'. The combination, with a -drum having 'T-slots, of .T-headed bolts fitted adjustably in said slots, and each having a. threaded' stem; a`cam having separated sets'of open.

ings, two to each set; and nuts threaded upon the bolts and bearing against said cam. In testimony whereof I ahX my signature in presence of two witnesses, at Hartford,

Ct. this 12th day of April, 1906.

BENGT M. W. HANSON. Witnesses: I

S. E. Davis, H. L. HUNTINGTON.'

Images