US1333349A

US1333349A - X-bay appabatxts

Info

Publication number: US1333349A
Authority: US
Publication date: 1920-03-09
Anticipated expiration: 1937-03-09

Description

Patented Mar. 9,1920.

A PPLI'C'ATroN "FILED AUG.25. me.

j. D. STIRCKLER. X-RAY APPARATUS. APPLICATION FILED AUG.25.`19|6.

3 SHLETS-SHEET 2.

I llllrll II LH lint l Patented Mar. 9, 1920.

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l IIJT llllllllll ..1 \\\...|u Il. llllllllllllll Il J. D. STIRCKLER.

xRAY APPARATUS.

APPLICATION FILED AUG.25, 1915. l y 1,333,349 Patented Mar. 9, 1920. I 3 SHEETS-SH-EET 3. 25g. 4.

A curve of the frame which supports it, but.

Jia

JHN D. STIRCKLER, OF CHELSEA, MASSACHUSETTS.

X-RAY APPARATUS.

Lasserre.

Specification of Letters Patent.

Application tiled August 25, 1916.- Serial No. 116,802.

To ali 'whom t may concern.' I

Be it known that I, JoHN D. STXRCKLER, a citizen of the United States of America, and

resident of Chelsea, in the countyof Sutolk v and State of Massachusetts, have 1nvented certain improvements in' K-lay Apparatus, of which the following is a specification.

The invention relates to X-ray apparatus, particularly to the construction of the table upon which the patient issupported and of the means for operating the table, and other details relating thereto, more particularlyhereinafter described and specified in the accompanying claims. j

Ein such apparatus which has been hereto- 1fore in use, the table, which is usually six feet or more in length, and as it is undesirable to have the top'of the table, when in horizontal position, ,more than three feet from the floor, it has been pivoted upon a frame with one end of the table extending much farther from the pivot than the other end and in order to prevent the end of the table from striking the floor, the shortercnd -was tilt-ed down, so that. it became necessary, for ease of operation when tilting the table, to have the longer end counterbalanced; also, heretofore, the X-ray tube-box, of very con siderable Weight, has been hungfupon the under side of the table, and it has been necessary to provide an automatically adjustable counterweight Vfor that, also. My imroved table is supported and moved as hough it were hung upon and swung from the center of a circle concentric with the with such center outside of the cord of an 'are lesslthan 180, which cord iscolncident with the top of the table, and in its operation 'is the same as a swinging table, whichis thus given a longitudinal progressive movement and at the Sametime 'is swung to the desired angle, and by the use of a wormgear to operate the table, no jolt or shock is possible, and thetable is automatically locked inevery position which it assumes, I

however small the amount of movement. In

my improved construction also', there are no.

structed with the field of' observation, for all purposes, extending throughout its entire,1

surface and 1s provided with protective plates, such vas lead, with guides for each,

I extending throughout the length of the table,

so that they may be moved to any position f in relation to the length of the table and in relation to veach other, by which means a field of operation, or observation, ma be obtained at any desired position' in t e top of the table lwithout changing-the position vof the patient thereon. The heavy tube-box` which is usually attached beneath the table,

`. is dispensed'withl and the tube is'supported upon a bracket attached to .the swinging` framevof the table. This bracket itself is j. supported on a small carriage adapted to be moved longitudinally ofthe table upon ways` secured to the lowerl part 'of its swinging 4frame; the -tube-holder is attached t0 the bracket by a universal joint, by which it may be turned to any angle in' relation to the sur- :tace of the table whether above or below it, and can be adjusted 'vertically upon the bracket standard,so as to placethe tube in any desired plane'above or below the surface of thetable'. The tube-holder isl also supported by self-sustaining extensible con-v neet-ions between it and the universal joint,

by which the holder may be adjusted to any' position transversely of the table, irrespective of its other positions in relation thereto; these 'connections being preferably arranged f so as to be contracted or shortened when the `holder is moved into the area ofthe table VSti and extended in length when the holderis -i moved vlin a direction towithdraw it from such areav in relation to the `working side', v.

or that next to the operator.

'In the drawings-forming a part of this specication, Figure l-is a side' elevation of the apparatusshowing the segmental Arack i l upon which the table'swin s, the gear by i which it is operated and the bracket.' iid X-i'ay tube attached thereto shown i-n two positions thereon, one below and one above the table; Fig. 2, is a'plan view of the table, showing the plate-holder, or cassette, andthe lead protective plates, also the self-,sustaining extensible connections between the bracket and X-ray tube-holder; Fig. 3, is a vertical longitudinal section of the table on line 3 3, Fig. 2; ,Figa fl, is an end eleva-tion of the table, showing the worm-gear and connections' by which the table is operated, and the handles by which' the cassette and protective vplates* are ricoveri; Fig. 5, is a transverse.

vertical section offthe table, through thev protective plates when, a,pos1tion which loo@ ` which supports the socket for the bar on they overlap; Fig. 6, is an end elevation of a .foot-resty'viewed' ,from the upper side of Fig. 2, or i,irthe -direction indicated by the arrow; 7, is a detail plan view of ayr telescoping modification of the extensible selfsustainin support for the tube-holder and also for t e handle shown jointed in Fig. 2; Fig. 8, is a side elevation 'of the carriage which the tube-holder is sustained and adjusted, viewedas from the inside, or from the top of Fig. 2, showing friction springs which bear upon the carriage supports and retard the movement of the carriage on its tracks, and Fig. 9 is a plan View of the saine parts.

Referring to the drawings and indicating l the several parts by reference characters: S, is the segmental portion of the frame ofthe table, T; onthe inner edge of the segment "S, is a rack 2, with which engages a pinion 3, on a shaft 4, which has a bearing at either end in standards f, secured to the stand F. Upon this shaft 4, a beveled gear 5, is keyed, vwith which meshes another beveled gear 6, upon a short upright shaft 7, supported in a yoke bearing 8; on the upper end of the shaft 7 a wormv gear 9, is keyed and this is engaged by a worm 10, on the shaft 11, which also has bearings in the standards f, and upon the end of the shaft 11, a crank 12, is secured, by which the worm is operated and through it the worm gear 9, the lgears p6 and 5, the shaft 4 and pinion 3, which latter, engaging the rack 2 on the segment S, causes that to swing in the arc of a circle. The segment is supported and guided by rolls 13, at either side of the stand F, the inner ones of which may be toothed pinions, as 13, lto engage the rack 2, the teeth of which may be extended throughout the length of the segment S, so that, if desired the foot end of the table may be raised. The table, or patient supporting surface T, is supported'on the segment S, by standards 14. lThe table is open throughout-its entire length, so that a field of observation, or for operation, may be obtained at anyv part thereof and withoutmoving the patient longitudinally thereon. This is accomplished..

by providing guides throughout the length of the inner edges of the frame of the table,

for the plate-holder, or cassette, as it is termed in this art, and for the protective plates P', P2. The several guides being in different horizontal planes, so that the cassette and the several plates may be moved into any position relative to each other and Vto the length of the table, by which a field may be obtained at any part thereof.v The movement of these parts is accomplished by handles c, p2, p1, respectively attached thereto, (Fig. 4). Over the top of the table, the usual covering plate 15, of Celluloid,- or other suitable material, may be secured by strips of thin metal bent over the edge of the covering late and the edge of the table, as at 15a, Fig. 3). Extending between the standards 14, upon one side of the table, preferably that opposite to the crank v12, or what may be called the Working side ofthe table, two rods 16, are secured by brackets 17, which rods serve as tracks for the Wheels 21, of a small carriage 22, carrying a socket 23, in which a bar 24, is supported and secured in any desired position vertically therein, by a set-screw'25; also, uponthe bar 24, is another socket 26, secured in posi- -tion'as desired, by a set screw 27.` The socket 26, is provided with a plate 28, the surface of which is parallel with the length of the ybar 24; another plate 29, is held against the plate 28, by a screw 30, by which the two are frictionally' held together and the plate 29 may be turned upon 28 with little eiort. Projecting out ata right angle from the plate 29, is an ear 31, with a bear-- ing -face at right angles to the bearing faces of 28 and 29. Against the bearing face of the ear 31, the face of an ear 32, is friction-` ally held by a thumbnut 33jworking upon a screw threaded stud projecting from the ear 31. From the ear 32, a yoke-piece 34 projects, the plane of its' surface being at right angles to the plane of the bearing surfaces of the

ears

31 and 32. To either arm of this yoke-piece is pivoted one end of a link of a series of lazytongs levers 35, and to the opposite end of the lazy-tongs a yoke 34, similar to 34, is pivoted, and also a series of friction joints like` 31-32 and 28-29, are employed and secured to a ring, or support 36 for .the X-ray tube-holder and leadglass bell 37, for protecting the tube. An exten- .sible handle 38, shown in Fig. 2 with jointed sections, which may have the usual spring washers at. the joints, or telescoping sections, may be used, similar to those shown in Fig. 7 to enable the operator to control the X-ray tubev when it is pushed in over, or beneath the area of the table, which operation will close up the lazy-tongs and place the tube remote from the operator.

As shown in Fig. 1, the tube-holder with the tube, may be adjusted to any position upon the bar 24. In full lines they are in -a plane below the surface of the table and v4.0, are-attached to the inner face of the frame of the earriage 22, by mea-ns of projecting studs 41, in such position that the curved ends 42, of the springs will bear upon the rails 16, and hold the carriage and its attachments against any unintentional movement. At the left end of the table (Fig. 1) a foot-rest 4-3, is shown; this is held upon the table by means of hooked clamps 44C, at

placed in the so-called Trendelenburg posiplates. In Fig. 2, projections 50, extending tion, thatvis, with the feet raised and the upper part of the body depressed. In Fig. 3,- the cassette frame C, is shown in a middle position in the table', but it Will be understood that it lmay be moved to any other position, that is, to either end, and the projecting plates P', P2, -be adjusted so as to bring the ield of observation outside of the from the inside of the cassette frame support the plates and they are held in place by buttons 5l, in the usual manner.'

I claim: I

l. In X-ray apparatus,a table normally balanced in all positionshaving its patientsupporting surface substantially below its center of motion, which is located midway of the length of the table and means to give the table a swinging andlongitudinal movement 'from a horizontal to a perpendicular position.

2. In X-ray apparatus, a swinging table support for the patient, an X-ray tubeholder attached to and carried by said table and adapted 'to be adjusted into desired planes, either above or below its patient supporting surface and longitudinally thereof, and a universally adjustable -connection between the tube-holder and its attachment to the table,

8. In X-ray apparatus, a swinging table support 'for the patient, means to gradually adjust such table to any angle between a `horizontal and a perpendicular position, an X-ray tubeholder attached to and carried by said table, universally adjustable connections between said holder and table, which connections are adapted to be reduced in length when the said lholder is moved into the'area oi the table from the operatin side and increased in length when the hol er is moved toward said operating side and out of said area from said side. v

4. In X-rayapparatus, a table support for Ithe patient, means to gradually adjust the table to any desired angle between a horizontal and a perpendicular position, an X-ray tube-holder provided with a self-sustaining extensible support, by which the holder may be adjusted across the area. of the table above and below its surface as desired and the obstructing parts of the support removed froin such area when the holder is withdrawn. i f

5. In X-ray apparatus having self-sustaining extensible means to support the tube- 'holderand adjust'it over the surface of the table, and an extensible handle attached to said holderto facilitate its manipulation within the area of the table at -points re, l

mote from the operator.

6. In Xray apparatus, a table to support the patient and having an open top extending throughoutl its entire supporting surface, protective plates supported therein and adapted to be shifted to any position in relan tion to the length of the table and in relation to each other, whereby a field of observation may be obtained at an desired 1ocation on the table without movlng the patient thereon.

7. In X-ray apparatus, a table supported upon a frame having bearing surfaces formed inthe arcfof a circle whose center is substantially outside of the upper surface of the table, a stand beneath said frame havf ing an open unobstructed space between the vertical position which the table may assume and the front or operating end thereof, an-

tifriction bearings .between 'the frame and the stand,- and a worm and gear near one end of the sta-nd which engages arack upon the frame, and lby the operation thereof gives the .frame an eveil swinging and longitudinal motion upon said bearings and adjusts the upper surface of the table to any desired-an- -gle between a horizontal and a vertical plane.

8. In X-ray apparatus, a support for the X-ray tube-holder, consisting of a carriage provided with means to receive and ciam) the support thereon a pair of tracks exte inglengthwise of the table frame and secured thereto, bearings upon the carriage which engage said tracks, and automatic brakes upon the carriage which .produce friction upon the'tracks and prevent unintentional movement 4of the carriage thereon.

JOHN D fsrreoKItEn.-