US968404A - Barber's chair. - Google Patents

Description

G. PFANSGHMIDT & A. SGHWARZKOPF.

BARBERS CHAR. APPLICATION FILED MAY 21, 1909.

Patented Aug.23,1910.

C. PFANSGHMIDT @a A. SGHWARZKPF.-

BARBBRS CHAIR.

APPLICATION FILED MAY 21, 1909.

Patentd Aug. 23, 90.

CHARLES P TJNIS TFO . CORPORATEON QF BARBER@ H IR.

SiS-NORA?, T 'Eil it, :P 'LL'NI tidtl Application led Si., 19H9.

To all whom it' may concern:

it lino'svn that We, Cnnnnss linnnuio'r and ARTHUR Scnivnnznorr, both 'citizens of the United States, and both residing nt Chicago, in Ilie county of Cook and tete of Illinois, have invented certain new end useful Improvements in Barbers Chairs, of which the following is a. speciication.

The present invention relates more pan ticularly to the locking devices for holding the back and foot rest of the chair in edjnsted position, and to the le mechanism for actuating said devices and for operating,r the pump employed in raising and lowering the chair. Y

The present invention relates hydraulic berbere chairs in which a lever is provided at the side of 'the choir for opto e type of Speoicaton or 'Letters Patent."

ersting the pump, and the object of the present invention is to also provide, in connection with the lever, a suitable device, or devices, for releasing the'rod which controls the reclinin movements of the chair. In the past, diculty hasfbeen experienced in uniting these various adjusting devices into n single lever mechanism adapted to he easily and. conveniently grssped and controlled by the barber with one hand While manipulatingg,v the chair with the other.

The object of the presenty invention is to so construct,arrenge .and unite 4the various adjusting niechanisinsthet a. single lever can ne employed for e'ecting all of the op.. erctions necessary in the manipulation of a. harners chair, 'without lditiiculty and in nn easy, convenient and natural manner.

The invention further relates to the clamping devices employed for holding the lock bar, Whicn serves to hold the parts in usted position; to the rod and lever mechcnisni `for actuating said clamping; devices; to the construction and ,nrrangement of the I pump bucket,n iilierebyzineans vill he afforded for locking thecheir against revoln tion; to tlielsncket actuating rod 'and conf nections with the hand lever; and to the chair .as s Whole and the individual ports `Further objects Will appear from a de tniled description of the invention, which consists in the features of const-motion and combination of parts hereinafter described end claimed.

l the drsvvings, Figure is a perspective view of e barbers chair, embodying the fer.-

Pntcnted Ang. E53, Titolo., serial no. 497,508.

tures of the present invention, and having one side removed to illustrate the arrange'- inent of the hond lever; Fig. .2 e sectional plan view throng-h the lease or standard of the chair, showing the lever and the opereting shaft in elevation; F 3 n. longitudinal sectional elevation, 'teiten through the center ofthe losse of the chair; Figs. l and 5 sectional plan views of the clamping niechanisni in different positions of adjustment; Fig. 6 a bottom view one 01' the Wedge blocks; "Fig o perspective view of the seme, reduced in size; and Fig. 9 a. detail,` showing the end of the hand lever and the clamp operati-ng rod in engagement therewith.

The chair is of a standard type, compris ing a body portion 10, a back ll, an apron l2, and a foot rest 13 of the style commonly found in harbors choirs. The bod7 portion has rigidly secured thereto, on each side, a pair of 'side arms lei. which extend above the body portion e considerable distance. To the inner sides ot the erins ere pivoted hanger brackets l5, the lower ends or which nre rigidly secured to the sides of the npron. The hack is provided, at' its lower end on each side, With a bracket plate 16, which forwardly entends from the bach and is provided, nee-r its opper corner, Wit-li a pivot hole l?, which receives apivot pin or stud, not shown, which inwardly projects from the ediecent side arm, neer the rear end thereon and serves to pivot the hack loetween the rigid therethrough a pivot stud 18 which servos to `pivot the .bracket plate to a hanger 19 imtvardly projecting from the rear corner ofen open seat frame 2O which is pivoted to the oyeron henger 'craclrets lo. The seet freine 20 serves as s mounting-for a seat' cushion 2l of the usuel style. The construction is one which pivot elly unites the seat With the heck and a Jron in such manner that any adjustment ol the hitch, out of the vertical, will be confinruni-v cated through the seatrsrne to the'itoron, and vice versa. This arrangement o1 parts is Well understood end need not be further detailed. I

The apron l2 has secured to its rear or inner.l side e bracket 22, to vvni e rearwardly extending loch of the pump bucket; Fig. 7 en enlarged cross sectional view of sides of the choir. EachA vot the bracket plates, near its lower outer corner, han; entered the type sometimes employed in barbers chairs,l which rod, as shown, is of circular formation and is entered through a cylindr-zl guide block Q4: having an inwardly extending cylindrical neck of reduced dianictenV which neck linds a bearing' in a cylindrical hole QG formed through the side wall of the main bracket head Q", from which depends the cylindrical stem 2S which mounts the chair. The bracket head is hollow on its interior to afford a chamber 29, and the upper edge of the bracket is provided with flanges 30 which support the body ot the chair seat. The neck 25 of the guide block'is swiveled within the opening 26, and the body portion ot the guide block proljects outwardly therefrom in position to have the locking rod passed' dialnetrically through its center. The neck isheld against retraction by means of a set sere ,v Bl, the end ot' which is entered into a cir-Quinterentially extending groove or channel near the inner end of the neck rIhe arrangement is one which atfords the neccesary turning movement or oscillation of the guide block to accommodate the locking rod, which oscillates to a slight degree by reason of the. swing of the apron.

The center of the guide block is cored out to attord a cylindrical chainber 133, within which is located a pair of clamping plates 3l, through which plates the locking rod is entered. rthe clearance tor the rodv is so slight that it can be reinoved longitudinally only when the plates are held in parallel relation, as shown in Fig. When in this position the holes in the plates will he brought into exact alineinent and register, so that tl e rod can be nioved hack and t'orth through the holes without clamp# ing or binding against the edges thereof. il'hen, however, the plates are lthrown out or oaralle-lisxn, as shown in Fig. 4, the edges of the holes will impinge or bite against the rod and chnnp it in any desired position ot adjustment. Each of the clamping plates, at its inner end, is beveled, as shown at 35, the beveled ends being in Contact with the beveled inner faces 36 of a recessed wedge block 3T, which is in the form ot a at disk tilted into the inner end ot' the chamber 333 and provided with an inwardly extendingY stud 38 which is entered through a hole il!) in the neck of the guide block. The hole 3f) is counlerhor-ed to attord a circular recess lo which receives a washer 4i, :itdjaccnt to which lies the end ot the tubular rock `shaft d'2, which end tinds a bearing within a washer 43, which abuts against the inner end orn the neck 25 and is ot' equal size therewith. The tubular rock shaft is provided, near its inner end, with a shoulder 4i.. which bears against the outer tace of the washer #t3 and prevents displacement of the washer which is`held within the inner end of the hole 26 in the wall of the bracket head.

'lhe tubular rock sli-att a'tifords a housing for a longitudinallv i ovahle operi 'i L15, the inner end ttf ot i i` within the washer l t n wed a shoulder l? which nears ao' inst the rod. @the end oli the rod is edili abut againstaud outwar .ly project tine rc- .7.. cessed wedge block 3l" te tue extent necessary to cause the inner heveletfi tacos ot' the wedge block to engage the beveled faces olii the clamping pates and throw the latter into parallel relation against the tension of 8G an interposed spring 49. rEhe recess in the guide block 2i covered and inclosed hy ineans ot a cap 50 provided, in its center with a recess 5l. which holds the ends ot the clamping plates. Sg

The operating rod extends, throughout its length, within the tubular rock shaft, and its end is entered within a cliainhered head 52, which preferably vintegrally termed on the .end ot' the tubular rock shaft. 'the 90 head has 'formed thereon an upwardly eii tending sleeve which atliords a mounting for a lever rod Bel, tcrniiiiating in a handle provided, on-one side, with a laterally e1;- tending linger .3G ot i :c and length sul'ti- Y 95 cient to allot-d an eas)y and comfortable eu- 'ageiuent for the hand ot the user. 'lie lower end ot the lever rod S within a recess 5i' termed i3 ot the head and the lever rod, diately above ujf: lower cud, is cut a, inner face to provide a strain` it facf .58, which notch allords an entrance end ot' the operating ro elf), as he. Vig. 9. The lever rod is preferably trieallyY nlouuted with respectto the of" the operating` rod.` so that one off Yi of the tint laced notch wiil abut' against the'end race rfi' the opcratin such manner that a turning,nieve the lever rod will inviare-ily projiect tue operatingrod against, the tension of the spring 4S, llhe outer `tace ot the head 52 is closed by incans of a. cap or hloek 5t).

'lhe tubular rock sha'tt providml, near 115 its center, on its upper side, with au ear GO .which receives the forked end (il ot a pump piston rod (32,. the parts being` pivoteijl i gether bv means ot a pivot pin 13. il pump' ton rod olls near upper eno.. to clear the tuhular ro. shaft around which ity extci'ids. and forked at its lower end Gill and ente t into the open upper end ot a, pulnp bucket, between the walls of which it pivotcd, inf means ot a cross piu titi. rlfhe 325 bucket is ot generally cylindrical shape and tits closelyv within the c vlinth'ieal stern "y which stein is slidahlgv` and rotatanly mounted within a cylindrical well 6T, ornr ing part of the base et the chair. The iii-per 3o end 68 of the bucket, on its outer side, is slightly beveled or tapered to engage with a pair of wedge blocks 69 which are entered through slots 7() cut across the cylindrical wall of the stem on opposite sides thereof. The wedge blocks are of the form shown in Figs. 7 and 8, having a rounded outer face 71, which has a curvature commensurate with that of the cylindrical 'stem within which it is positioned.'` and having an inner fiat face 72, save in the center, where said face is eut away by an upwardly tapered' cylindrical concavity 7 3. The ends 7e of the block are wedge shaped, with the result that, when the bucket is raised to a predetermined height, its tapered upper end will engage the recessed portion of the wedge blocks and force the blocks outwardly, so that the rounded faces of the wedge blocks will bear against the wall of the surrounding well, thereby locking the stem against revolution and affording an extended contacting surface.

The bucket isA provided with a floor 75 having a centrally located valve opening 76, the under edges of which are beveled to afford a seat for a spring controlled inner valve 77, the stem Iof which projects through a bottom plate 7S. The lower end of the tubular stem is shouldered to afford an enlarged chamber 7S), 'in the floor of which is a valve opening 80, the under edge of which is beveled to afford a seat for a spring controlledouter valve 8l, the stem of which projects through and is guided within an outer plate The well, near its lower end, is shouldered to afford an enlarged chamber 83, which is closed by means of a plugged bottom wall Si. The well is pio vided with a flange 85, which rests upon an annular boss Sli which projects from. a circular base plate 87 which rests upon the Hoor. The bucket is provided, near the lower end of its inner chamber, with one or more diagonally disposed vent openings S8,

so arranged that when the bucket is in its' lowermost position they will communicate with the enlarged chamber 79 in the bottom of the well.

In use, when it is desired to recline the chair, the operator grasps the handle of the lever and gives a partial turn to the same by pressing against the laterally projecting finger, which turning movement will cause lthe edge of the fiat faced notch 58 to iinpinge against the operating rod 45 and in' Wardly project the same, thereby drawingtogether the inner ends of `the clamping plates, which will normally occupy an ontwardly convergent position,- as shown in Fig. 4. This action serves to release the plates from clam ing engagement with the locking rod, there y allowing the'chair to be This adjustment can be easily effected by the barber,

pump bucket, the

who is enabled to grasp the back of the chair with his left handwhile operating the .lever handle with his right hand. As soon as the lever handle is released, the pressure of the spring 48 against the operating rod will throw back the rod and turn the lever handle to normal position, thereby releasing the clamping plates from engagement by the recessed wedge block, which againdocks'the chair in adjusted position. When it is desired to raise the chair, the lever handle is rocked or oscillated back and forth, which reciproeates the pumpvbuckct and pumps the oil or other liquid contained in the tubu lar stem out into the well, thereby raising the chair. lVith each upward stroke of the opened by the pressure of the oil to permit the down-flow will be discharged through the lower valve by the next down stroke of the pump bucket, and this process will ,continue until the chair has been elevated to the desiredA degree. Thereafter, when the lever is moved to 'its normal or 'vertical position, the bucket will be lifted to its extreme position and brought into engagement with thewedge blocks 72, which are spread to the extent. necessary to bring their outer faces into locking contact with the walls of the well, so that the chair will be locked against rotation. A slight movement of the lever in the forward direction will be suiicient to release the wedges and peinit rotation of the chair, without either raising or lowering the same. When it is desired. to lower the chair, the lever will be thrustdown to its lowermost position, thereby forcing down the bucket until the Vent openings 8S are brought into comninni cation with the enlarged chamber S5 at the bottoni of the well and the bucket forces down and opens the valve 81, at which time` the oil will have free cmnmunica'tion through the valve and escape through the vent openings, and into the tubular stem of the chair, allowing the latter to gradually descend to the desired point.

The arrangement of the lever handle is such that the barber can .manipulate the lever inany desired manner without shifting the position of his hand or body and without any material exertion, leaving his other hand free for 'the manipulation of the chair. Furthermore, the lever handle can be turned and the chair reclined at any position in the stroke of the lever, which is highly desirable, in that it relieves the barber from the necessity of carefully bringing the lever to a designated position of adjust ment before releasing the lock. p l

It Awill be seen that the lock operating and pump operating mechanism is so coinbined that an extremely simpleand easily manipulated adjusting mechazmsm 1s afof a quantity of oil, which inner valve 77 will be i forded, which is of great importance in the `i3o nan's. Y l' tl Q und o iii-o moli simili; hoy 3a. the guido block will be illnte to litntct. sanfy do ing` :finlyjoi @il to the weight iolitt, no that tlioi'o will 'oo iocking rofl Vdook. The onits 't o1' (l ust.

ont@ by Rotten Hato-nty is:

. in :i 'oni'boinV chung tno combination ol x 'otl connootid '-.vi n on liao mov- L tno @innig n oi-Lininngg' do n, Y in; tho rod in znljnetmi, posit' for imp: iting voitoftl nimo t 1 choix', at lnnnl lover inonntoil t 'nin'f movement about un axis u -At`. n 1 1 ionlzir to its longg'itnilnnt axis, and

:i ing mow-nient nlvont its longii' Y, n oonnoctifn wfw ln tlio pinnp nnnip will :i l liv ilio Sninfinff oi'mi'iont of l, l5* P) iti- ,Voix :i omnoction lwtn'fron tho linn i l'l and tin: Clamping {invio} n'hefxioby the (Y i latini' will mf on-'eiznoil by tim turning moventinlli; :is (le tin; ooinoiin i ono of the niilo bloilt tank, n, clamping Vitletl .itii

' rod QX- pinto boing adapt? noi/ml no; Linguin@ nini adapted y poni moet: nonno pinto :1i l move it n long-1r opt-i'nting atlanti( i lio wmig'o blink', unil o to i lni'nwi to innV i t 1,) lio opii'nii tiniljf :15e tlosoiilm'i.

indo/lod so i z rofl ontw/imi ,lili ono t tomo@ portions olf ilw nlnlii'g n initio nio iin-oro@ which tlio i'ocl cxiontls, i olznnp" pinto Nithin tiio guido biock provided ml.- :i holo through which tho locking i'otl tando, said plato lit-ing adapted to release the iotl when nioveil to one position of angnl lznity with ioapoot to tho i'otl :incl adapted to lock tho foil when niovotl to another position of iingnlniity, n. wedge, block adaptetl to engage the Clan-ning plate and niovo it to locking nini nnloofng` positions, a longintlinoily movable operating rod adapted to minato tito n'odgo block, n swinging hand lover atlapoil to Jo turned on its lonvitnflinnl axis to impart longitudinal movement; V'to the operating rod7 ai pump bucket, and minicction between tlw pinnp :intl hand loi'o; for oper: ting' the ifoi'inei by a swlliging nioveinont oi the latten :substantially its described.

ai. In it lnuboi'ls cimii', tlio combination of at locking` oil connvctml with ono of tho movable potions of tho cliziii, :i olinnping device :uinptetl to lo lc the roti in adjusted position, n pnxnp 'tot' initial-ting' VeitioiilV niofcnion't. to llio simili, n hollow rotatable' "nioniboicomprising n noi'izontzily oxtQnding portion located in the interior of 'tito 'Choir body, and a poi-tion extending ontiiiflo ot' :oid supp-oit and ljfii'ig in ai Verticnl plano znlizicent to .tito cliziii body, n lotl lying with4 in 'tho horizontal portion and adapted (to tatuato said @lmnp-ing loving n rod extend- ,ing tlilougli tito Vertical portion and lim/'ing com surface fnljooont. to one end thm-onf in operativo relation with tito @nfl oi' the rod ncttmting said Clamp-ing devices, a connaction bott; not tito lioiizontnlly extoniling poi'- tion and tho pinnvL o zi movement of tno iotl oxtcntling tliiongli the vertical portion nionntl tlio aYiQ of the rotatable moni- 'omf will :intim L iotatoblo manine? to .lio ou; 'sono iisinund miao oi' nctnfite t lower til sod :thon

i movement of sniil bring' tho ons, agoinont with tlm o flvito and inoo clamping posi chain', its own nA \on into on

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