US 1357551 A
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Description (OCR text may contain errors)
A. J. FREY AND F. s. HYATT.
APPLICATION r1150 SEPT. 10. 1919.
Patented Nov. '2, 1920.
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AUGUST 6'. FREY AND FRANK S. I-IYATQOF BROOKLYN, NEW YORK, ASSIGNORS TO BRASS GOODS MFG (30., OF BBOOKLY YORK.
N, NEW YORK, A CORPORATION OF NEW TUBE-COMPRESSOR.
Application filed September 10, 1919.
Z 0 all 10 7mm it may concern lie it known that we,-.iiUons'r J. Finer and FRANK S. llinirr, citizens of the United States, and residents of Brooklyn, in the county of Kings and State oi New York, have invented certain new and useful Improvements in Tube-Compressors, of which the following is a specification.
Our invention relates to clamping devices designed to apply clampin pressure to a tube or similar object and which, as usually constructed, embody an actuating cam or member mounted in a pair of ears or brackets rising from one clamping member and operating upon an upper or second clamping member arranged between the ears.
One form of device of this general character and made of sheet metal is described in Letters Patent oi A. J. Frey Nos. 1,217,433 and 1,297, 4 .56 and another form in which the parts are made of wire is described in patent of A. J. Frey No. 1,275,898.
Our invention, however, will be described in connection with a form in which sheet metal is employed.
The objects of our invention are to insure an effective clamping pressure upon the tube or other object introduced between the clamping members and also to simplify the construction a ud reduce'the amount oi metal required.
Other ol'ijects are to do away with elements or features of the previous constructions and so to facilitate the insertion of the imbing or other object between the clampina members. in the previous constructions the chimpinp jaws are carried respectively at the ends oi? a piece of sheet metal or wire having a. loop or bend through which the tube is inserted into position between the clamping jaws and in such previous constructions the tube or other object is clamped at one point only.
in the present invention the two clamp ing' jaws or clamping members are independent of one another and the upper clamping member is supported loosely and guided in position between the cam supporting cars or uprights whereby it may accommodate itself readily to irregularities in shape or condition of the tube or other clamped object.
In our present invention furthermore, the two clamping members are provided with Specification of Letters Patent.
. Patented Nov. 2, 1920.
Serial No. 322,829.
clamping jaws at opposite sides respectively of the point of operation of the operating cam or other device, thereby insuring an effective compression of the tubing and complete shutting oil oi the low of liquid through the same.
In the accompanying drawings:
Figure 1 is a side elevation of the compressor or compressing clamp embodying our invention and shows the parts in position for exerting the compressing action.
Fig. 2 is a side elevation showing the parts in position for insertion of the tube or other object between the clamps preparatory to the compressing action.
Fig. 3 is a detached plan View of the lower clamping member.
Fig. i is a detached plan View of the upper clamping member.
1 indicates the lower clamping member from which rise the ears or brackets 2 as in previous constructions, forming a support for a pivoted cam 3 pivoted by its pintles 4: in said uprights and provided with the operating arms 5, 6 by which it may be caused to engage or disengage the upper clamping member of the device. Said parts 3, 5, 6 are, as shown, made of a single piece of metal and provided with an intermediate strut or brace 7 as described in one of the previous patents above mentioned.
The construction so far described is old in the art and will not be further referred to. The lower clamping member 1 is provided with a clamping jaw 8 with which cooperates a j aw 9 upon an upper clamping mem ber 10. In previous constructions the member 10 forms one arm or end of a single strip of sheet metal, the other end of which terminates in the member 1, and is thereby sup )orted in proper position to hold aws 9, 8 in relative position. The loop of the piece of metal. or wire in case wire is employed, is usually perforated to allow insertion of the tube between the clamping members.
In our present invention the metal comprising the loop portion is entirely dispensed with and the upper clamping member 10 is loosely supported and guided in position over the lower member 1 in any suitable way, as for instance by providing it with slits indicated at 11, through which the ears or brackets 2 pass so as to hold said loosely mounted member 10 against longitudinal as well as lateral. displacement. Said member 10 being engaged by the cam 9 when the latter is operated, will compress the tube or other object in obvious manner, but owing to the loose mounting of the member 10 the latter can accommodate itself to irregularities in the shape, size or condition of the tube and thereby operate with a more eiiective clamping pressure under varied conditions of use. 7
In addition to loosely mounting the member 10 as described, we provide the same with a clamping jaw-Warranged so that jaws 9 and 9 will be at opposite sides respectively of the point of application of the pressure by the cam or other operating member to said member 10. The lower member 1 is likewise provided with another clamping jaw 8 which cooperates with jaw 9'. As will be seen, the member 10 being loosely mounted, the pressure on the two pairs of jaws will be equalized and pressure will be effectively applied at two points in the tubing, thereby'insuring a complete closure of the same and stoppage of the flow. The rear end oi the member 10 is extended as indicated at 12 to form a stop for the arm 6 of the operating cam when the same is depressed to apply clamping pressure.
As will be seen, the difficulty encountered in previousconstructions owing to the necessity of threading the tube through an eye or opening at the rear of the device is avoided in our construction and it is only necessary to pass the end of the tube into the space between the jaws 8, 9, the conformation of which is such that they assist in guiding the tubeinto and through the space between the clamping members 1, 10-.
hat we claim as our invention is 1. In a compression clamp of the character described, the combination of a lower clamping member having upright integral bracketsrising from opposite sides thereof, a aw operating cam having transversely extending pintles engaged with said uprights and an upper clamping member loosely mounted and guided on said uprights and held thereby against longitudinal displacement.
2. In a compression clamp of the character described, the combination with a lower clamping member having ears or uprights integral therewith, a cam having pintles engaged with said uprights and an upper clamping member loosely supported and guided on said uprights against lateral and longitudinal displacement.
3. In a compression clamp ofthe character described, an'upper clamping member points.
i. In a compression clamp of the character described, an upper clamping member loosely mounted and guided against lateral and longitudinal displacement'and provided with two distinct clamping jaws arranged respectively at opposite sides of the point of application of the clamping pressure, and combined with a lower clamping member having a pair of distinct'jaws cooperating respectively with the jaws on the upper member and provided also with guides integral with it for said upper member.
5. In a compression clamp of the character described, a lower clamping member provided with ears or brackets, and with clamping jaws at opposite sides respectively of aid ears or brackets and an upper clamping member having cooperating jaws arranged respectively at opposite sides of the point of application of the clamping pressure and adapted as described to equalize the pres sure on the jaws when subjected to the action or" the compressing member.
6. In a compression clamp of the character described, having an operating cam and actuating arm therefor, a loosely mounted upper clamping member supported and guided independently of the lower member and provided with a rearwardly extending arm adapted to form a stop for the cam.
7. In a compression clamp of the character described having a compressing cam and actuating arm for said cam, the combination of a lower member having cam supporting ears or brackets and clampingjaws at opposite sides respectively of said brackets and an upper clamping member loosely supported and guided upon said brackets and provided with a'pair of cooperating jaws-and with an arm adapted to form a stop for the cam actuating arm.
Signed at Brooklyn, in the county of Kings and State of New York this 30th day of August, A. D. 1919.
AUGUST J. FREY. FRANK S. HYATT. Witnesses:
IRENE LEFKOWITZ, F. B. TOWNSEND.