US2486404A

US2486404A - Fan attachment for sewing machines

Info

Publication number: US2486404A
Application number: US677135A
Authority: US
Inventors: Haynes Quinton
Original assignee: LONNIE W ROWLAIN
Current assignee: LONNIE W ROWLAIN
Priority date: 1946-06-17
Filing date: 1946-06-17
Publication date: 1949-11-01
Anticipated expiration: 1966-11-01

Description

' Nov 1, 1949.

Q. HAYNES 2,486,404

FAN ATTACHMENT FOR SEWING MACHINES Filed June 17, 1946 2 sheets-sheet 1 A L I l l I 8 7/ j: 11 r I f Liven tar auimoo Hayes.

Nov 1,1949. Q. HAYNES FAN ATTACHMENT FOR SEWING MACHINES Filed-June 17, 1946 2 Sheets-Sheet 2 I nveutor Patented Nov. 1, 1 949 FAN ATTACHMENT FOR SEWING MACHINES Quinton Haynes, Atlanta, Ga., assignor of onehalf to Lonnie W. Rowlain, Atlanta, Ga.

Application June 17, 1946, Serial No. 677,135

6 Claims.

This invention relates to a fan attachment for sewing machines, and particularly for power operated sewing machines used in shops, where, under the pressure of mass production, the workers are seriously affected by heat in the summer months and circulation of air is desirable.

The primary object of the present invention is to provide an attachment of the above kind which is comparatively simple in construction, efficient in use, economical to manufacture and easy to install upon existing sewing machines.

A more specific object of the invention is to provide an attachment of the above kind which is adapted to be suspended from and to occupy a position beneath the top of the sewing machine bench, so that the attachment will be out of the way although located to properly direct air toward the machine operator.

More specific objects and features of the invention will become apparent from the following description when considered in connection with the accompanying drawings in which Figure 1 is a fragmentary top plan view of a fan attachment constructed in accordance with the present invention and installed upon a sewing machine, the bench top of the sewing machine being broken away.

Figure 2 is a front elevational view of the construction shown in Figure l, with the sewing head of the sewing machine omitted.

Figure 3 is an enlarged plan view of the attachment with the housing and hanger bracket omitted.

Figure 4 is a view similar to Figure 2 illustrating a modification.

Figure 5 is an enlarged plan view of the construction shown in Figure 4, with the bench top omitted, and

Figure 6 is a view somewhat similar to Figure 1, illustrating a further modification.

Referring in detail to the drawings, 5 indicates the top of the sewing machine bench, beneath the rear portion of which is located a horizontal drive shaft 8. The sewing head 6 of the sewing machine is operatively connected with the drive shaft 8 by means of a belt gearing I. In the type of sewing machine illustrated, shaft 8 is driven through a flywheel clutch 9 by means of an electric motor l bolted to the underside of the bench top as at H. The usual guard 12 is provided for the flywheel clutch 9.

In the embodiment of Figures 1 to 3 inclusive, shafts l3 and M are disposed at an acute angle to each other and journalled in bearings l5 and I6 of the bracket [1. The adjacent ends of the housing 22 shafts l3 and M are operatively connected by bevel gearing l8, and the gears at H! and bracket [1 are disposed within a suitable housing '22. The other end of shaft it carries a pulley I9, while the other end of shaft It has an impeller 20 secured thereon. The usual wire guard 2| is provided for impeller 28. Attached to the top of housing 22 is a hanger bracket 23.

In practice, the hanger bracket 23 is bolted as at 24 to the underside of the bench top 5 so that the attachment is suspended from the latter with the shaft l 55 disposed parallel with the drive shaft 8 and the impeller 26 disposed in a plane diagonally of the bench top 5 for directin the air at an angle toward the operator seated at the machine. Also, the attachment is located beyond the belt gearing and forwardly of drive shaft 8. The shaft 8 is suitably provided with an extension equipped with a pulley 25 aligned with the pulley IQ of the attachment, and an endless drive .belt 26 is passed around the pulleys l9 and 25 for driving the impeller 20 from the drive shaft 8, power being transmitted from shaft l3 to shaft M through the gearing [8.

In the embodiment of Figures 4 and 5, the attachment includes shafts i3 and M which are arranged at right angles to each other and operatively connected by a bevel gearing l8 disposed within a suitable housing '22. Shaft 13 projects from housing 22 and carries a friction wheel 21, the shaft l4 having an end projecting forwardly from the housing 22' and having the impeller 20' secured on the projecting end thereof. Impeller 29' is disposed within a suitable wire guard 2|, and a hanger bracket 23' is fixed to the top of the In practice, the bracket 23' is bolted at 24' to the bench top 5 so that the fan attachment is suspended from the latter directly in front of the motor H! with the shaft [3' disposed parallel with the drive shaft 8 and the friction wheel 21 disposed at the front of the guard [2 in line with the flywheel clutch 9. Also, a slot '28 is cut in the front of the guard l2 and the friction wheel 21 protrudes through this slot so as to frictionally bear upon the periphery of the clutch flywheel 9 for being driven thereby. Thus, the impeller 2B is located so that the operator is seated directly in front thereof and so that said impeller accordingly directs air toward the operator.

The embodiment of Figure 6 is similar to that shown in Figures 1 to 3 inclusive except that a small friction wheel 29 is secured on the shaft [3 in place of the pulley I9, said friction wheel 29 being arranged to bear upon the belt of gearing eliminates the necessity for the pulley 25 and belt 26 From the foregoing description, it is believed that the construction, operation and advantages of the present invention will be readily understood and appreciated by those skilled in the art. It will be apparent that the attachment is very simple and economical to manufacture and may be readily installed so as to be out of the-way although located to effectively serve its intended purpose. Other modifications and changes in details of construction are contemplated such as fall within the scope of the invention as claimed.

What I claim is: I

1. The combination with a power driven'sewing machine including a bench having a top, a sewing head mounted on the bench;. t op,andcmower driven shaft disposed below the bench top and operatively connected to the sewing head, of a fan attachment disposed beneath and suspended from .the bench top, said fan attachment including a substantially horizontal impeller shaft arranged below the bench top and driven from said power driven shaft and a screw impeller secured on said impeller shaft and arranged to. direct-air forwardly toward an operator seated at the bench.

2.. A fan attachment for power-driven sewing machines including two substantially horizontal shafts disposed at an angle to each other and operativelygeared together at corresponding ends, a drive wheel secured-on the other end of one of said shafts,--a screw impeller secured on the other end of the other of said-shafts," and means including a bracket adapted to be secured to the underside of the bench top of the sewing machine for rigidly suspendingthe shafts in a horizontal position fromthe bench top with the impeller arranged beneath the bench top to direct air forwardly toward an operator seated at the machine bench and with the drive wheel arranged for operative connection with a motor-operated drive shaft of the sewing'machine arranged beneath the top of the latter.

3. A fan attachment for power-driven sewing machines having a power-driven shaft disposed beneath a bench top, comprising two intergeared horizontal shafts disposed at an angle to each other, a housing for said shafts and the intergeared ends thereof, one of said shafts projecting from the housing and provided on its projecting end with a drive wheel, the other shaft also projecting from the housing and being provided upon its projecting end with a screw impeller, and a bracket secured to the top of said housing and adapted to be bolted to the underside of the bench top so as to suspend the attachment therefrom with the impeller disposed beneath the bench top and arranged to direct air forwardly toward the machine operator and with the drive wheel arranged for operative connection with the power-driven shaft.

4. The combination with a power-driven sewing machine including a bench having a top, a sewing head mounted on the bench top, and a power driven shaft disposed below the bench top and operatively connected to the sewing head, of a fan attachment disposed beneath and rigidly suspended from the bench top, said; fan attachment including a horizontal impellershaft driven from the operative connection between the power driven shaft and the sewing head at a point below the bench top,; and a screw impeller secured on said impeller shaft and arranged to direct air forwardly toward an operator seated at the bench.

5. The combination with a power driven sewing ,machine including a bench having a top, a sewing said driven shaft with the sewing head, of-a fan attachment disposed beneath and rigidly suspended from the bench top in frontof said motor, said fan attachment including a horizontal shaft provided with a friction wheel engaged with and driven by said flywheel clutch, and a second horizontal shaft arranged at a right angle and geared to the last named shaft and carrying an impeller arranged to direct air forwardly toward an operator seated at the bench.

6. The combination with a-pow'er driven sewing machine includinga bench having a top, a sewing head mounted on the bench top, and a power driven shaft disposed below the bench top and operatively connected to the sewing head, of "a fan attachmentdisposed-beneath and rigidly suspended from the bench top, said fan attachment comprising intergeared horizontal shafts arranged at an acute angle to each other beneath the bench top, a driving connection between one of said last named shafts and the power driven shaft, and a screw impeller carried by the other of said last named shafts and arranged to direct air forwardly toward an operator seated at the bench.

QUINTON HAYNES.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 457,167 ONeil Aug. 4, 1891 485,554 Miller Nov. 1, 1892 753,987 Legg Mar. 8, 1904 863,990 Hartmann Aug. 20, 1907 1,427,827 Laburda Sept. 5, 1922 2,139,761 Macaluso Dec. 13, 1938