US1431904A - Half lap for combing machines - Google Patents

Description

Patented Get. 10, 1922.

UNITED STATES PATENT OFFICE.

MAX BOHMER, OF CKEMNITZ, GERMANY/ASSIGNOR TO OTTO A. BELGER, OF BOSTON, MASSACHUSETTS.

HALF LAP FOR COMBING MACHINES.

Application filed July 19, 1922. Serial No. 576,087.

To all "2.0720722 it may conoem:

Be it known that 1, MAX Btirmnm a citizen of the Republic of Germany. and resident of Chemuitz, Germany, have invented an Improvement in Half Laps for combing Machines, of? which the following; description, in connection with the accompanying drawing. is a specification, like characters on the drawing representing like parts.

This invention relates to combing machines and particularly to the part thereof commonly known as the halt lap.

' The so-called half laps of combing inachines are usually carried bya cylinder or barrel and support a plurality of needle bars each having the row oi. needles therein. The construction usually employed in securing the needle bars to the half laps is such that the various needle bars have to be put in irregular order and each needle bar individually fitted to the cylinder so that the needles will have the proper position. Further more in some constructions the means for connecting the needle bars to the half laps is such that the needle bars can only he removed in a certain sequence and consequent.- ly ii any needle bar becomes damaged and requires to beremoved or repaired itis necessary to take out all oi? the needle bars preceding the damaged one in order to remove said damaged one.

This. of course, entails a considerable amount of work; and after the damaged needle bar has been repaired or replaced it necessitates replacing all the other needle bars which have been removed and readjusting: them.

It is one of the objects of my present invention to provide an improved halt lap in which each needle bar is independently adjustable and is capable of being removed or replaced independently of any other needle bar and without disturbingany other needle bar. lVith my invention, therefore, it any needle bar becomes damaged and requires to be repaired the damaged needle bar can be readily removed without disturbing any of the other needle bars.

In order to give an understanding of my invention I have illustrated in the drawings a selected embodiment thereot which will now be described atterwhich the novel features will be pointed out in the appended. claims.

Fig. l is a vertical sectional view of a halt lap cylinder embodying my invention. Fig. 2 is an end view with a part broken out.

Fig. 3

screw.

In the drawings 1 indicates the barrel or cylinder carrying the half lap, said eylinder being secured upon the rotatable shaft 2 as usual. The half lap carried by said cylinder is shown at 8 and it may be secured in place in any suitable way as by means of screws 4:.

The needle bars supported by the half lap are indicated at (3, each needle bar having a row otneedles 7 secured thereto in any suitable or usual manner.

As stated above one feature oi my invention relates to a construction by which each needle bar 6 can be removed or adjusted in the half lap independently of any other needle bar. One way in which this may be accomplished is herein illustrated. The half lap 3 is provided with a series of slots 8 which have the proper inclination to a radial line and which are adapt-ed to receive the needle bars 6. i ecured to each end of the half lap are plates 9. said plates being retained in position by screws 10 and posi cloning pins 21 which extend from the ends of the hall: lap into apertures in the plates 9. These plates 9 carry means for adjustably retaining each needle bar in position, said means being so constructed that each needle bar can be individually removed.

The means I have herein. provided for this purpose comprises a pair of screws 11. and 12 for each end. of each needle bar. Each needle bar is shaped at each end to present the two oppositely-inchned surfaces l3 and 14 forming between them a pointed portion 15. Each needle bar is also termed with the portion [(5 which bears against the inner face of the corresponding plate 'l hese plates, therefore. serve to prevent longitudinal movement oi? the needle bar.

As stated above there is a pair oi? screws ll, 12 at each end oi each needle bar. Each screw ll is provided with a rounded inner end 11' which engages the inclined face 1? ol the needle bar and each screw l2 is provided with a pointed inner end 18 which en- ;ran'es the inclined edge 'l-;t ot the need is bar.

In inserting a. needle bar in place the a detail view of the adjusting;

screws 11 are backed off sufficiently to permit the pointed portions 15 to pass by them and to permit the inclined edges 14 to rest against the pointed ends 18 of the screws 12. The screws 11 may then be turned up until they engage the bevelled edges 13. It the screws 12 are properly adjusted then the needle bar will be in proper position when the edges 14 thereof rest on the bevelled ends 18 ot the screws 12 and the turning up of the screws 11 will simply look the needle bar firmly in position. If, however, it is de sired to adjust the needle bar outwardly in order to bring the needles into proper position then the screws 11 may be backed off slightly and the screws 12 turned up, this resulting in forcing the needle bar outwardly. On the other hand, it it is desired to adjust the needle bar inwardly the screws 12 may be backed off and the screws 11 turned. up.

Since there is a pair of screws 1.1 and 12 at each end of each needle bar it will be seen that each needle bar can be adjusted independently of any other needle bar by simply manipulating the proper screws. Similarly each needle bar can be readily removed or replaced independently of any other needle bar so that the operation. of removing a needle bar fOllH'tY purpose does not in any way disturb the position of the other needle bars.

If a needle bar has been removed for any purpose then when it is replaced there will. be no necessity of making any adjustment of the needle bar because it the screws 12 are not disturbed the needle bar will have the correct position when it is replaced and all that is necessary to do is to tighten the screws 11 to hold the needle bar in place.

I have herein shown the screws 11 and 12 as being split at their outer ends and in making the screws the split ends will preferably be spread slightly as shown in Fig. 3 so that when the screws are screwed into the plate 9 the spread ends will be forced together. In this way a suflicient friction is produced so that the screws will not be loosened during use and, therefore, will not lose their adjustment. Any other way of locking the screws so that they cannot lose their adjustment during the operation of the machine may be adopted, however, without departing from the invention.

I claim.

1.. In a device Of the class described, the combination with a drum, of a hall. lap thereon provided with a plurality of slots, a needle bar in each slot, a plate secured to each end of the half lap, and adjusting screws carried by the plate for retaining the needle bars in adjusted position.

2. In a combing machine, the combination with a drum of a halt lap thereon provided with a plurality'ot slots, a needle bar in each slot, each needle bar having at each end two oppositely-inclined edges. aplate secured to each end of the halt lap a plurality of pairs of screws in each plate. there being one pair for each needle bar, the screws of each pair engaging the inclined edges of the needle bar and operating to retain the needle bar adjustably in position.

In testimony whereof, I have signed my name to this specification.

MAX BonMnR.

Images