US1930383A - Glass grinding and polishing machine - Google Patents

Description

Oct. 10, 1933.

H. J. CAPELLMAN, sa 1,930,383 GLASS GRINDING AND POLISHING MACHINE Filed May 23. 1930 2 Sheets-Sheet l 0 Z7 4 g ZG HATToRNEY til Patented Oct. 10,

UNITED sTATEsY This provements in GLAss GRTNDING AND PoLIsHTNG MACHINE Hubert Capellman,

y Application'May 7 Claims.

invention relates to certain novel imglass grinding and polishing machines and has for its principal object the provision of an improved construction of this character which will be highly efficient in use and economical in manufacture.

Another object of the sion of Va construction of herein by means of which plates or like articles may invention is the provithe character escribed the edges ci glass be rapidly finished with a minimum expenditure of labor.

The new finishing machine includes a movable abrasive, a along the trackway trackway,

to and from the abrasive,

a carriage movable and article holding means cn the carriage movable,

relative to the carriage, to and from the abrasive; and other objects of the invention are:

to provide a novel article -holding means; to provide a novel arrangement of the article holding means on the novel arrangement ing means, relative to -the abrasive.

Other objects will appear The invention consists in carri for moving the article-holdthe carriage, to and from age; and to provide a hereinafter. the `novel combination and arrangement of parts to `be hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings, showing the preferred form of construction and in which: Fig. 1 is a sectional view taken substantially on-the line 1-1 in'Fig.

2, showing a preferred Yconstruction of themachine;

Fig. 2 is a sectional View substantially on the line2-2 in Fig. 1';

Fig. 3 is a detailed stantially on the line 3 sectional view taken sub- 3 in Fig. 1;

Fig. 4 is a fragmentary perspective view showing certain features of the invention;

Fig. 5 is a perspective view of a unit embodied in the invention;

Fig. 6 is a modiiied fo block of abrasive material embodied in vention; and Fig. 7 is a assembled for use.

Among the objects of which will expeditiously provision of a machine construction of a the inrm of perspective View of the invention this invention is the grind and polish the edges of glass plates which are adapted to be mounted and used in various ways in which such plates are used in the arts such as in automotive vehicles windshields, doors,

or the like. Referring t a preferred constructio shown, and referring m o the drawings wherein n of the invention is ore particularly to Fig.

Sr., South Chicago, Ill.

23, 1930; Serial N0. 455,117

'7 the invention includes PATENT OFFICE a carriage 10 which is adapted to support a plurality of glass plates '11 and this carriage is adapted to be fixed in position on a housing 12 in which are disposed mechanisms actuated by a motor 13 which re- 5D ciprocally moves a slab 14 of suitable abrasive material against theedges of the glass plates. In arranging the invention for use, carriage -10 platform 1`5 which is slidably mounted on a includes the braces to leg portions 18 16 and 17 which are secured by suitable connecting Yelements such as nails 19 or the like. Provided on the platform are guidin are adapted to communica disposed in alignment with provided in the housing-12.

includes legs troughs 20 and 21 so l1 are inserted into position, described presently, the carriage moved slidably 'from the platform housing 12. 1

g troughs 20 which te with and to be guiding troughs 21 "m The carriage 10 22 which*y are slidable in the that when the glass plates in a manner to be 10 `may' be Q5 15 onto the The carriage 1o includes a movable table -23 in which the plates 11 are secured in a manner to be described presently and this table is movable vertically through the medium of a bar 24 and counterbalance weights 25 which are supported by cables which are attached to 26 suspended on pulleys 21,

the table23. Included in Ythe carriage 10 are side portions 28 which provide supporting legs Disposed between the 29 and foot portions 30. legs '29 and attached thereto by means of suitable connecting elements such as screws 31 are end portions Referring now particularly it will be seen that l to Figs. 1 and 2, 5 there are provided on one side of the carriage 10 two similar-brackets 33 which provide right angularly extending flanges as screws 35. Projecting these studs are arms tions of which bar .proved manner such mounted on the arms 3'7 by 37, inthe opposite end por- 24 is mounted in any apas by riveting. Pivotally means of suitable connecting elements such as studs 38 are the end portions 39 of the table 23. approved manner to these en the table 23 are the cable opposite ends, are

Secured in any d portions 39 of s 26 which, at their secured in any approved manner to the counterbalance weights 25. `These cables are guided tatably supported on stub in the pulleys 27 shafts which are ro- 40, and these shafts 40 are supported by brackets 41 which include foot portions 42. The foot portions 42 are secured to the end portions'32 by means of suitable connecting elements such as screws 43. It will be manifest, therefore, that when the bar 24 is raised and lowered on the supporting studs 36 the table 23 will likewise be raised and lowered since the bar 24 is attached to the end portions 39 of the table and it will be seen that as the table 23 is raised the counterbalance weights 25 will be lowered on cables 26.

Included in the table 23 and extending between the end portions 39 are side portions 44 and 44 Which are secured to the end portions .',this connection there opening 45 in the side ing through this opening is a hub flanged portion 56 and this collar is position, I provide an arm 58 which ,collar 52 and discs 39 in any approved manner such as by=we1ding and supported by these sideportions V39 are the mechanisms now to be described forclamping the glass plates 1l in position and for turning these plates to expose the diierent edges of the plates to the action of the abrasive slab 14'. In is provided a cylindrical 46, at the inner end of which is a disc 47 carrying a ball race 48. A centrally disposed cylindrical opening is formed in the hub 46 and projecting through this ,opening is a shaft 49 which carries a disc 50at its inner end. Diametrically opposed aligned openings are provided in the discs 47 and'50 and these openings motion. Carried by the hub 46 exteriorly of the side portion 44 of the table is a collar 52 whichincludes a secured to the hub 46 by means of a stud 53. Referring particularly to Fig. 5 it will be seen that a notch v57 is provided in the flanged portion -lar 52.r To effectuate locking the hub 46V and Aattached disc` 47, and shaft 49 and attached disc 56 of -col- 50 against rotatory movement when 'the glass plates 11 and resilient plates 55 are is secured to the side portion 44 of the table 23 by means of a suitable riveted stud 59. A tongue is formed in the arm 581 and when this tongue Lis engaged in the notch 56 it'will be seen that the rotatory movement. The outer end threaded interiorly portion of the yhub 46 is vvas indicated at 53 and a threaded thumb screw 54 is threaded therein. It will be manifest, therefor,ethat when the thumb screw 54 is. threaded into the hub 46 the inner end of this screw will abut theouter end of shaft 49' and as the thumb screw 54 is tightened the shaft `49 and` attached disc 50 will provided for securing a gripping action between and against the glass plates.

A cylindrical opening is provided in the side portion 44 of `table 23 and projecting through this opening is a hub 61 which carries a disc its inner end and portion 44 and project- SCIGWS 83.

one end of which is secured to the hub 61 and the opposite end of which is attached to the collar in any approved manner such as by screw 67. A slot 68 is provided in the collar 65 and projecting upwardly in this slot is the key 64. It will be apparent, therefore, that when collar 65 is retracted against the force of spring `66 the collar will be guided on the hub 61 by means of the key 64 and when collar 65 is in retracted position the hub 61 and attached disc 62 are rotatable therewith since the key 64 on hub 61 engages the collar 65 in the slot 68. Suitable radial arms 69 are provided inthe collar 65 to facilitate retracting the collar 65 and likewise to facilitate rotating the collar 65, hub 61 and disc 63.

Assuming that the glass plates 11 and adjacentresilient plates 55 have been disposed in position, as best shown in Figs. 2 and 7, it will be manifest that when the thumb screw 54' is screwed lnwardly the inner end thereof end of hub 49 and disc'56 will be forced into gripping engagement against the resilient plates 55 and the glass plates 11 will be forced against the discv 62. In this manner the glass plates 11 are retained in position during the grinding and polishing of the edge portions of the glass plates which action will be described hereinafter. To facilitate turning the different edges of theplates into polishing position I provide a iiangedportion onthe collar 65 and formed at 90 intervals in this flanged portion are suitable notches 71 which are adapted to lengage a tongue 72 which pro- It will be maninotches 71, preventing rotation of disc 62, and in this manner the glass plates are secured in polishing position and prevented against rotatory movement during the grinding and polishing operationy to be described presently.

The housing 12 is preferably mounted on any fiat surface providing a suitable base 76 to which g are secured together by means of suitable connecting elements such as screws 75. Formed in the end portions 74 on the inner sides thereof are offset portions 78 which provide shoulders 79 and mounted on these shoulders are rails 80 which have longitudinally extending slots 84 formed therein providing iianges 81 and 82. These rails 82 are secured to the sides 73 of the housing by means of suitable connecting elements such as There are nally extending iianges 85 interiorly of which and these plates in turnv provided on the rails 82 longitudi- 'un no aregrooves 86, and shelves vany approved manner such as vby Ldisposed on the and mounted on 87 are provided n- In lthis connection the carriage 10 in means of suitable pins 89 and these wheels include flanges 90 which travel in grooves 86. There is preferably one of these wardly Vof .the grooves 86.v wheels 88 are mountedpn wheels 88 at. each corner of the carriage 10 and ywhen 'the carriage .'10 is shelves 87 the wheels 88 guide the carriage and prevent lateral movement thereof. a

Transversely extending plates .91 :are mounted slidably in the slots 84 provided in the rails 82 the upper surface of these plates Vis a longitudinally extending plate 92 which supports a table 93 is mounted and this table includes upwardly extending end portions 93. Suitable connecting elementssuch as threaded screws 94 secure together for reciprocalmovement the slab 14, table 93, plate 92 and plates 91.l Theheads of these Vscrews areV preferably rcountersunk and the threaded end portions Acarry threaded nuts 95. A bracket 96 is connected to the plate 92 at the .under side kthereof by means of suitable screws 97 or the like. A suitable opening 1s provided in .bracket 96 and projecting through this opening and ,through openings formed in anarm 97 is `a pin 98 which carries keys 99 to effectuate movbetween the arm 97 andthe effectuate reciprocal rectilinear able connection bracket 96. To

vmovement of the abrasive slab 14 and attached units I provide an eccentric arm 100,r the upper end portion of which is journaled on a pin 101 which projects through openings provided 1n arm 97 and in arm 100 and keys 102 are vprovided in suitable openings formed in the end portions of pin 101. The lower end portion of arm 97 is rotatably mounted on a rod 128 which is mounted in suitable openings formed in the side walls 73 of the housing 12 and this rod provides a bearing surface of the arm 97. Spacing collars 129 are provided on the rod 128.

Provided at the end portion of the eccentric arm 100, opposite the end connected to arm 97, is a suitable split bearing 103 of any approved type and this bearing is mounted on an arm 104 which projects from an eccentric wheel 105. The eccentric wheel 105 is rigidly mounted on and rotatable with a shaft 106 which is journaled in asuitable bearing 107 which is attached to one of the side Walls 73 of the housing 12 by means of suitable connecting elements such as screws 108. The shaft 106 projects outwardly from the housing 12 Yand is connected in any approved manner to a suitable source of motive power such as motor 13. In this connection I provide a housing 109 in which suitable gears are housed for effectuating connection between the motor 13 and shaft 106.

It will be manifest, therefore, that when the glass plates 1l are disposed in position in the carriage 10 and the motor 13 operated the rotatcry movement of shaft 106 operated by motor 13 will be converted into reciprocal rectilinear movement by means of the eccentric wheel 105 and arm and thus reciprocal rectilinear movement will be imparted to the polishing slab 14 and attached table 93 which are carried on plate 92. It will be seen, therefore, that when the glass plates 11 are disposed in position in the carriage 10 in the manner described above, with one edge portion of the plates disposed on slab 14, the reciprocal action of slab 14 against the ,side wall 73 of the housing on'which the slab 14` edges `of the plates 11 will effectuate the polishing of the edges ofthe plates;-

In order to prevent any 'tendency to longituf dinal movementof'the carriage 10 when the slab 14 `andassociated parts are in operation I pro- L which are attachedpto one 12 Vby means o'f Vsuitableconnecting elements such as screws 111 and these bracket arms carry a rod 112 onV which vide bracket arms 110 is.Y mounted a dog 113 and this dog includes a Y '114 which is adapted to be 1inprovided in a block 115 tongue portion serted into a notch 123 which is secured to the carriage 23 by. means of suitable screws 116.

To collect the dust issuing from the ,plates 11 andthe abrasive 14, which may be of .any suitable material such as carborundum or the like, I provide receptacles 117 in the housing 12 and communicating with these receptacles are openings 118 provided between chutes 119` and the end walls 74 of housing 12. The chutes 119 are attached to the inner sides of the side walls 73 of the housing 12 in any approved manner such as by welding. It will be seen, therefore, that the dust produced during ishing operation will be diverted downwardly between the rails 80 into the receptacles 117 which maybe secured to the bottom or end walls of the housing in any suitable manner `such as by Welding. Further to prevent the yescape of dustI provide a'housing 120 over the polishing slab `14 and formed in'this housing is an opening 121 of suitable size to enable the plates 1l to be lowered therethrough into contact with the polishing slab 14. Y

VLugs 124 are vattached tothe housingv l12' by means of screws 125 and these lugs include rightangularly extending arms 127v which project inwardly from the side walls 73 of the housing. When the carriage 10 is in position on the housing 12 the arm portions of these lugs rest adjacent the foot portions 30 of the carriage and in this manner prevent the carriage from being tipped sidewardly.

the grinding and pol- I In Fig. 6 a modified form of construction for 120 the polishing slab 14 is provided and in this instance the slab has grooves 122 formed therein in spaced relationship and in use the edges of the plates 14 are disposed in and guided in these grooves.

From the foregoing description of my invention it will be seen that I have provided a glass grinding and polishing machine which is particularly adaptable for grinding and polishing the edges of glass plates automotive vehicles or in like uses and which while effectively serving its many other objects will be highly efficient in use and econominal in manufacture.

While I have illustrated and described the preferred form ofY construction for carrying my invention into effect, this is capable of variation and modification, without departing from the spirit of the invention. I, therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claims.`

Having thus described my invention, what I claim as new and desire to protect by Letters Patent is:

1. In a finishing machine, the combination with a trackway, of a carriage adapted to be moved along said trackway and including means for supporting a plurality of articles to be nnsuch as are used in l veying'abrasive m 'ished, finishing mechanism inclu onto which said carriageV may nishing mechanism including finishing member, and chute ing member.

2. In a finishing machine, t with 'a trackway,

ding a trackway be moved, said a reciprocatory members for conaterial away from said nishhe combination of a carriage adapted tobe moved along said trackway and including means for, supporting a4 plurality of ar ticles to be iinished, 'finishing mechanism including aA track- Way onto which' said carriage may be moved from the first-mentionedtrackway, said finishing mechanism including a reciprocatory nishing member, chute members for sive material conveying abraaway from said finishing member,l

and pan members adapted to receive abrasive material discharged from said 3. In a machine for simultan or guiding corresponding parts of the edges of a chute members. eously polishing peripheral plurality of articles, a trackway, a

movable abrasive, a carriage for the articles,

movable along `the trackway, mechanism mounted on and. to the carriage to and from that selected corresponding part .eral edges of the articles may be abrasive when thelatter is movi .nism holding the articles in the c selected edge parts ythereof in c article carrying movable relative vthe abrasive, so

s of the periphabraded by the ng, Vsaid mechaarriage with the ontact With the abrasive, and including means for' simultaneously .revolving all the articles, when .moved from the abrasive, so parts thereof may be abraded the mechanism is that other edge when -the mechanism is moved back to theabrasive.

4. An article nishing machine, comprising a movable abrasive] a trackway, riage movable along the trackw an article caray` to and from vto and from Vthe abrasive, said and from the abrasive,

means for revolving the faces thereof successively abrasive.` y 1 .f 5. An article nishing machine, comprising a movable abrasive, a trackway, an article carriage movable along the trackway to and from the abrasive, counterbalanced article-holding means on the carriage movable, relative to the carriage, means including means for revolving the articles to bring surfaces thereof successively into contact with the articles to bring surinto contact with the abrasive, anda member'movably mounted on' said carriage for moving -said article-holding means relative to the carriage.

6. An article nishing machine, comprising a movable abrasive, anV article carriage, articleholding means on the carriagel movable, relative to and from the abrasive, means on the carriage counter-balancing the article-holding means, and a member movably Vmounted on the carriage for moving the articlecarriage, toward

Images