US740434A

US740434A - Type-writer desk.

Info

Publication number: US740434A
Application number: US14905203A
Authority: US
Inventors: Frank H Howe
Original assignee: Individual
Current assignee: Individual
Priority date: 1903-03-23
Filing date: 1903-03-23
Publication date: 1903-10-06
Anticipated expiration: 1920-10-06

Description

PAT-ENTED 0016,1903.

F. H. HOWE. TYPE WRITER DESK. APPLIGATIOK FILED MAR. 23, 1903.

2 SHEETS-311E l.

/ N0 MODEL.

, JIM/Wm- %M%W WfWfiifi N0 MODEL.

PATEN'TBD 001". 6,1903.

P. H. HOWE. TYPE WRITER DESK.

APPLICATION FILED MAR. 23, 1903.

2 BEEET8-SEBET 2.

latented October 6, 190:5.

PATENT OFFICE.

FRANK H. HOWE, on OURTICE, OHIO.

TYPE-WRITER DESK.

SPECIFICATION forming part Of Letters Patent N0. 740,434, dated October 6, 1903. Application filed March 23, 1903.- Serial No. 149,052. (No model.)

To, wZZ whom it may concern:

Be it known that I, FRANK H. HOWE, of Gurtice, county of Ottawa, and'State of Ohio, have invented certain new anduseful Im provements in Type-Writer Desks; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the'figures of reference marked thereon, which form part of this specification.

My invention has reference to a type-writer desk, and embodies the novel details and features of construction hereinafter shown and described, and illustrated in the accompany.

ing drawings, in which- Figure 1 is a front elevation of my improved desk, showing the same closed. Fig. 2 is a top plan view of the desk, showing the swinging frame for supporting the type-writing machine in raised position. Fig. 3 is an enlarged sectional elevation, the parts in section being indicated by the line a; m, Fig. 1.

\ Referring to the details of construction, the body of the desk is arranged with a drawerpedestal 1 to the left and space or well 2 to the right, the fiat top 3 extending over both the drawer-pedestal and the well. Arranged in the top is a rectangular opening 4 of asize to permit the type-writing machine to be elevated therethrough.

5 is a swinging section or frame hinged at its rear end at 6 to the desk-top.

7 represents parallel guides upon the swing.

3,) which operates to engage the swinging frame 5 and hold the slide in position. When it is desired to draw the slide outward, the catch 10 is lifted by means of the bent lever 11, thereby disengaging the same from the swinging frame. If it is desired, the slide,

with the machine clamped thereon, may be instantly removed from the desk when the machine is to be used elsewhere. Extending downwardly from the lower face of the swinging frame and located at a point near the left forward corner of the same is a rod 12, formed with an eye 13, to which one end of a cable or rope 14 is secured. "lhe rope is directed over

pulleys

15, 16, and 17, respectively, and is then extended downwardly and is secured to a weight 1-8, guided vertically at the rear of the drawer-pedestal in the space provided therefor immediately behind the drawers therein. The weight 18 exactly counterbalances that of the type-writing machine and is adapted to support the same in any posi' tion desiredgthe raised position of the swinging frame being shown in full lines, Fig. 3,

whereas the lowered position is shown in dotted lines. W hen the swinging frame is raised,

thecatch 19 the same would swing forcibly.

downward into the well with a liability of damageto the type-writing machine. I have obviated this danger .by providing a safety means to holdthe swinging frame from falling into the well when the rope is accidentally parted. The means I employ comprise an arc-shaped plate 21, secured to the side of the well, and upon the inner marginal edge of the same are provided serrations 22, adapted to be engaged by a pawl 23, pivoted to the side of the swinging frame, a spring 24, secured at one end to the frame and at the other to thepawl 23, causing'the pawl to engage the serrations when not disengaged by other means. In order that the pawl shall at all times be disengaged, except when the rope parts, there is provided a laterally-extending eye upon the pawl, through which-the rope 14 extends. The tension of the ropeis such that the pawl will be disengaged from the serrations so long as the same is intact; but the instant the rope is parted and the tension removed the pawl will be released and engage the serrations to arrest the fall of the swinging frame and the machine carried thereby. As a result of this construction the swinging frame is insured against falling, the pawl 23 engaging the serrations ofthe arc-shaped plate instantly when the tension of the lifting-cable is released. I It will be seen that so long as the parts operate normally neither the pawl 23 nor the serrated plate will assist in the operation of the device, except to protect the same against injury. To lower the machine into the well, the slide carrying the same is pushed inward to the position shown in Fig. 3, the gravity-operated catch 10 holding the slide in this position. The springcatch 19 is then withdrawn, and the machine is depressed by exerting a slight pressure thereon. The machine having now been lowered into the well, the rectangular opening at the top is closed'by ahinged leaf 24, which is made to take the position in dotted lines, Fig.

1, when the machine is to be elevated.

25 is a hinged member adapted to close the forward side of the well to exclude dust from the machine when lowered into the desk, the

clude dust therefrom, the same being hinged at 29. The free end of the member 28 is adapted to slide upon the inner face of the member 25, so that when both members are depressed they take the position in dotted lines a, Fig. 3, forming nearly a right angle, as shown, the spring 27 being elongated and under tension.- The members are moved to this position automatically when the typewriting machine is lowered, since the forward end of the swinging frame carrying themachine will contact with the member 25 and force it outward, the member 28 then falling by gravity and holding the member 25 in outward position. I have provided a flexible connection 30, either alight chain or a cord, between the outer end of the swinging frame and the free end of the member 28, which is of a length to cause the member 28 to be lifted slightly from its lowered position when the swinging frame is raised.

In Fig. 3 are shown in full lines the

members

25 and 28, respectively, at the instant when the swinging section has been raised,

There is also a hinged member 28,.

position they will continue to move upward to the position indicated by dotted lines I),

'Fig. 8,'since the angle between two sections has been increased, the edge of the section 25. It is apparent that the

hinged members

25 and 28 after once being'started in their upward movement will continue so because of the action of the coiled spring 27. It will thus be seen that these members will be antomatically raised when the swinging section carrying the type-writin g machine is elevated to be out of the Way of the knees of the operator when the machine is in use, and the same will also be lowered automatically when the swinging section is depressed.

From the foregoing description the novelty and utility of my invention will be apparent.

Having described my invention, what -I claim, and desire to secure by Letters Patent,

1. In a type-writer desk, a swinging section for supporting the type-writing machine, hinged to the desk-top, a flexible lifting-cable secured to a movable part of the swinging section and maintained under tension by suitable means, an arc-shaped plate provided with marginal serrations, arranged adjacent to the swinging section, and a pawl carried by the swinging section adapted to engage the arc-shaped plate when the tension on the lifting-cable is released, substantially as described.

2. In a type-writer desk, a swinging section hinged to the desk-top, adownwardly-extending rod arranged at the forward end of the swinging section, a flexible lifting-cable suitably guided over pulleys and attached at one end to the rod and having a weight secured to the other end thereof, a serrated plate arranged adjacent to the swinging section, and a spring-actuated pawl pivoted to the side of the swinging section provided with means for engaging the lifting-cable, whereby when the tension of the cable is released the pawl will engage the serrated plate and be disengaged therefrom when the cable is under tension, substantially as described.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

,. FRANK H. HOWE.