US1653912A - Bearer - Google Patents

Description

Dec. 27, 1927. 1,653,912

c. B. JOHNSON BEARER Filed a .A. 19/26 w 29 m W/J/Z' INVENTOR WITNESSES L66 19 clwsterflcmmo- MfWl/t D 4/ ATTORNEYS Patented Dec. 27, 1927.

cnnsrnn neonnson, or HASBROUCK nnren'rs, new EnsnY.

BEAREB- Application filed January 4, 1926. Serial No. 79,197.

The present invention relates to improvements in bearers for printing presses of the bed and cylinder type.

The invention is particularly concerned with improved means for securing the bearer to the press bed in such a manner that the bearer will offer a uniform wearing surface over which the cylinder travels.

It is customary to attach the bearers by inserting a number of screws through openings in the tops of the bearers. I have discovered that the edges of these screw holes become very rapidly worn down, and that the bearers frequently break or crack transversely at the points where they are weale ened by the provision of the screw holes.

In order to overcome this difficulty, I em-' ploy ameans for fastening the bearer which does not pass through its upper surface, and which will leave no screw hole openings in the faceof the bearer over which the cylinder travels.

By virtue of my improved attaching means, I also render it possible to raise the bearers and insert packing therebenea'th whenever. occasion requires.

Further objects of the invention are to provide a bearer which may be rapidly installed or removed, which will be of simple, practical construction, which will be rugged,

durable and highly eflicient in use,and which may be manufactured wlth comparative economy.

/Vith the above noted and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts, as will bemore fully hereinafter set forth and pointed out in the claims. The invention may be more fully understood from the following description in connection with the accompanying drawings, wherein i Fig. 1 is a fragmentary plan view of the bed of a printing press showing my improved bearers in place, and supporting a type form between them. r

Fig. 2 is a fragmentary edge view looking at the outside edge of one of the bearers.

Fig. 3 y the line 3-3 of Fig. 1. y a

Fig. 4: is a cross-sectional view on the'line l& "of Figure 1.

In the drawings I have usedthe reference character 10 to designate the bed of the press. A type form 11 is shown mounted in a type frame 12 by the use of suitable is a transverse sectional view "on,

quoins 13. The present invention is particularly concerned with the construction of the bearers 14: between which the type frame is mounted.

A feature of the present invention is the elimination of the usual screws which are passed directly through the top of the bearers and into the bed of the press. Instead of these screws, I use studs 21,1ixed to the bed of the press as by screwing their. lower ends into sockets in the press bed, the upper ends of which are threaded at 22 for the reception of clamping nuts 23. The outer lateral faces of the bearers are formed with approximately fan shaped recesses 24 therein, adapted to provide clearancefor the free turning movement of the nuts 23. Re, cesses 24 are channelled out of the bearers and communicate with vertical recesses 25 i 'eceiv-ing the shanks of the studs 21. By

virtue of this construction, inwardly pro movement.

Obviously any suitable: form of clamping nut might be utilized, but I prefer to use a imt having a number of radially disposed tool receivin ockets 27 in its ierinher.

The flaring or fan like shape of the slots 24.

permits the 'nuts to" be rotated through nearly a half turn at each insertion of a pin or other suitable tool into the pockets 27. In other words, the flaring shape of theslots is primarily to provide clearance for the movement of a nut operating tool.-

,From the foregoing description it will be evident that I have provided a bearer of much inorerugged construction than the conventional. type. By eliminating "the screw holes in the upper face of the bearer, I prevent excessive wear atthe edges of the holes where the cylinder travels over the bearer face. I also eliminate the tendency of the bearers to break at the points where they areheld by their securing devices. I furthermore render the attachment or removal of the bearers to the press, extremely lit) . ber 18, 1925.

that when it becomes desirable to elevate the bearers, such a result maybe accomplished by merely loosening the nuts 28, inserting packing or shims under the bearers, and subsequently retightening the nuts.

I prefer to associate with the bearers some type form locking means of the general character of that disclosed in my copending application Serial No. 69,896, filed Novem- The type form lock which I employ in the present instance however, is somewhat different than, and a considerable im orovcment on the t is form lockin mechanism of the above entitled application. One of the principal features of improve ment is the elimination of any slots in the uppersurface of the bearer for the accommodation of the type form lock actuating means. i

Each type form lock includes a flat clamping plate 18 carried at one end of a screw 17 working in atransverse threaded bore in the bearer. The ends of the screws areswivelly connected to the plates 18 as at 17*, and

closely adjacent theplates are integral or rigid with operating nuts-or discslti. The inner-lateral faces of the bearers are pro- *idedwith recesses 20 for accommodating the discs 16 and plates 18 when the screw it is moved to retract the plates out of-engagement with the type frame 12. Each screw 1? is formed with a polygonal; pocketl'r in its other end, said pocket being adapted to receive a suitable turning tool for turning the screwsand projecting or retracting the locking plates 18. Thenuts or discs 16 are formed with anpolygona l series of radially disposed pockets 16 for the reception of a turning tool. After the screw has been moved a suli'cient distance inwardly to project the nut 16 out of its recess 20, further tightening or projection may pockets 16. The plates 18 preferably carry guide pinsl9 working in snitable recesses 19 y in the inner face of the bearer (as described in my )l'GViO1.1S application. ikllhese guide pins assure movement of the locking plates in planes parallel tothe plane of the? bearer.

thereby facilitating proper angular adjust- Inent OftllQllYPG-ffll'll'l relative tofithe bearers at all times. it i a Any suitable number of type forni engaging mechanisms such as those just described may. beused wit-beachbearer and any other convenient onconventional type forin ing mechanism be substitutedtherefor; 1t 15 desirable that suchmechanisms when used shall be so arranged, that 1t will be unneces studs projecting upwardly therefronu clampmg nuts on the. upper ends of the studs, a bearer having vertical openlngs 1n be effected, by either manually grasping the nut androtating it,- -or by nisertingiahandle pin into one of the bearer. having vertical open I n of the bearer, wherehythe brmrermay he sary to slot or aperture the upper surface of the bearer, whereby an uninterrupted uniform wearing surface is had.

The bearer which embodies both my improved type form clamping means, and the improved securing means which forms the subject matter of the present invention, will i be of course highly eiiiclent from every angle,

but it is tobe understood that the present invention is applicable to all bearers regardless of whether or not they embody any type form clamping means.

Various changes and alterations,might be made inthe general form and arrangement of parts described without departing from a the invention. Hence I do not wish to limit myself to the details set for h, but shall consider myself at liberty to make such changes and alterationsas fairly fallwithin the spirit and scope of the appended claims.

. I claim:

1. A bearer having recesses in its outer lateral face for the accommodation-of clamp its 'loweiwportion receiving the studs and recesses in its lateral face receiving the nuts.

4. The combination with a. press bed and studs projecting upwardly therefrom, of clamping nuts on tbeupper ends of the struts. a bearer harin vertical open inns in l ts lower portion receivingthe studs and recesses in its lateral facareceiring the nuts said u'eturning of the clamping nuts.

The combination with a press bed and studs projectinguynvardly there-Erma. of

clamping nutson theupper} ends of the studs, y 'n its lower portion receiving the studs. and its lat tral fa.ce receiving the nuts, saidopen ings. communicating with the lateral surfa E' into positirm. under the nuts.

onns'rnan, Johnson.

press bed and.

ii ll cessesLfla-ring at theirumouths Ito facilitate" i ll) recesses in llii

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